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linux/drivers/media/platform/ti-vpe/vpdma.c

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[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
/*
* VPDMA helper library
*
* Copyright (c) 2013 Texas Instruments Inc.
*
* David Griego, <dagriego@biglakesoftware.com>
* Dale Farnsworth, <dale@farnsworth.org>
* Archit Taneja, <archit@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/firmware.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/slab.h>
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
#include <linux/videodev2.h>
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
#include "vpdma.h"
#include "vpdma_priv.h"
#define VPDMA_FIRMWARE "vpdma-1b8.bin"
const struct vpdma_data_format vpdma_yuv_fmts[] = {
[VPDMA_DATA_FMT_Y444] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_Y444,
.depth = 8,
},
[VPDMA_DATA_FMT_Y422] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_Y422,
.depth = 8,
},
[VPDMA_DATA_FMT_Y420] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_Y420,
.depth = 8,
},
[VPDMA_DATA_FMT_C444] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_C444,
.depth = 8,
},
[VPDMA_DATA_FMT_C422] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_C422,
.depth = 8,
},
[VPDMA_DATA_FMT_C420] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_C420,
.depth = 4,
},
[VPDMA_DATA_FMT_YC422] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_YC422,
.depth = 16,
},
[VPDMA_DATA_FMT_YC444] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_YC444,
.depth = 24,
},
[VPDMA_DATA_FMT_CY422] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_YUV,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_CY422,
.depth = 16,
},
};
const struct vpdma_data_format vpdma_rgb_fmts[] = {
[VPDMA_DATA_FMT_RGB565] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGB16_565,
.depth = 16,
},
[VPDMA_DATA_FMT_ARGB16_1555] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ARGB_1555,
.depth = 16,
},
[VPDMA_DATA_FMT_ARGB16] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ARGB_4444,
.depth = 16,
},
[VPDMA_DATA_FMT_RGBA16_5551] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGBA_5551,
.depth = 16,
},
[VPDMA_DATA_FMT_RGBA16] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGBA_4444,
.depth = 16,
},
[VPDMA_DATA_FMT_ARGB24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ARGB24_6666,
.depth = 24,
},
[VPDMA_DATA_FMT_RGB24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGB24_888,
.depth = 24,
},
[VPDMA_DATA_FMT_ARGB32] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ARGB32_8888,
.depth = 32,
},
[VPDMA_DATA_FMT_RGBA24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGBA24_6666,
.depth = 24,
},
[VPDMA_DATA_FMT_RGBA32] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_RGBA32_8888,
.depth = 32,
},
[VPDMA_DATA_FMT_BGR565] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGR16_565,
.depth = 16,
},
[VPDMA_DATA_FMT_ABGR16_1555] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ABGR_1555,
.depth = 16,
},
[VPDMA_DATA_FMT_ABGR16] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ABGR_4444,
.depth = 16,
},
[VPDMA_DATA_FMT_BGRA16_5551] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGRA_5551,
.depth = 16,
},
[VPDMA_DATA_FMT_BGRA16] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGRA_4444,
.depth = 16,
},
[VPDMA_DATA_FMT_ABGR24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ABGR24_6666,
.depth = 24,
},
[VPDMA_DATA_FMT_BGR24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGR24_888,
.depth = 24,
},
[VPDMA_DATA_FMT_ABGR32] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_ABGR32_8888,
.depth = 32,
},
[VPDMA_DATA_FMT_BGRA24] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGRA24_6666,
.depth = 24,
},
[VPDMA_DATA_FMT_BGRA32] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_RGB,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_BGRA32_8888,
.depth = 32,
},
};
const struct vpdma_data_format vpdma_misc_fmts[] = {
[VPDMA_DATA_FMT_MV] = {
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
.type = VPDMA_DATA_FMT_TYPE_MISC,
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
.data_type = DATA_TYPE_MV,
.depth = 4,
},
};
struct vpdma_channel_info {
int num; /* VPDMA channel number */
int cstat_offset; /* client CSTAT register offset */
};
static const struct vpdma_channel_info chan_info[] = {
[VPE_CHAN_LUMA1_IN] = {
.num = VPE_CHAN_NUM_LUMA1_IN,
.cstat_offset = VPDMA_DEI_LUMA1_CSTAT,
},
[VPE_CHAN_CHROMA1_IN] = {
.num = VPE_CHAN_NUM_CHROMA1_IN,
.cstat_offset = VPDMA_DEI_CHROMA1_CSTAT,
},
[VPE_CHAN_LUMA2_IN] = {
.num = VPE_CHAN_NUM_LUMA2_IN,
.cstat_offset = VPDMA_DEI_LUMA2_CSTAT,
},
[VPE_CHAN_CHROMA2_IN] = {
.num = VPE_CHAN_NUM_CHROMA2_IN,
.cstat_offset = VPDMA_DEI_CHROMA2_CSTAT,
},
[VPE_CHAN_LUMA3_IN] = {
.num = VPE_CHAN_NUM_LUMA3_IN,
.cstat_offset = VPDMA_DEI_LUMA3_CSTAT,
},
[VPE_CHAN_CHROMA3_IN] = {
.num = VPE_CHAN_NUM_CHROMA3_IN,
.cstat_offset = VPDMA_DEI_CHROMA3_CSTAT,
},
[VPE_CHAN_MV_IN] = {
.num = VPE_CHAN_NUM_MV_IN,
.cstat_offset = VPDMA_DEI_MV_IN_CSTAT,
},
[VPE_CHAN_MV_OUT] = {
.num = VPE_CHAN_NUM_MV_OUT,
.cstat_offset = VPDMA_DEI_MV_OUT_CSTAT,
},
[VPE_CHAN_LUMA_OUT] = {
.num = VPE_CHAN_NUM_LUMA_OUT,
.cstat_offset = VPDMA_VIP_UP_Y_CSTAT,
},
[VPE_CHAN_CHROMA_OUT] = {
.num = VPE_CHAN_NUM_CHROMA_OUT,
.cstat_offset = VPDMA_VIP_UP_UV_CSTAT,
},
[VPE_CHAN_RGB_OUT] = {
.num = VPE_CHAN_NUM_RGB_OUT,
.cstat_offset = VPDMA_VIP_UP_Y_CSTAT,
},
};
static u32 read_reg(struct vpdma_data *vpdma, int offset)
{
return ioread32(vpdma->base + offset);
}
static void write_reg(struct vpdma_data *vpdma, int offset, u32 value)
{
iowrite32(value, vpdma->base + offset);
}
static int read_field_reg(struct vpdma_data *vpdma, int offset,
u32 mask, int shift)
{
return (read_reg(vpdma, offset) & (mask << shift)) >> shift;
}
static void write_field_reg(struct vpdma_data *vpdma, int offset, u32 field,
u32 mask, int shift)
{
u32 val = read_reg(vpdma, offset);
val &= ~(mask << shift);
val |= (field & mask) << shift;
write_reg(vpdma, offset, val);
}
void vpdma_dump_regs(struct vpdma_data *vpdma)
{
struct device *dev = &vpdma->pdev->dev;
#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, read_reg(vpdma, VPDMA_##r))
dev_dbg(dev, "VPDMA Registers:\n");
DUMPREG(PID);
DUMPREG(LIST_ADDR);
DUMPREG(LIST_ATTR);
DUMPREG(LIST_STAT_SYNC);
DUMPREG(BG_RGB);
DUMPREG(BG_YUV);
DUMPREG(SETUP);
DUMPREG(MAX_SIZE1);
DUMPREG(MAX_SIZE2);
DUMPREG(MAX_SIZE3);
/*
* dumping registers of only group0 and group3, because VPE channels
* lie within group0 and group3 registers
*/
DUMPREG(INT_CHAN_STAT(0));
DUMPREG(INT_CHAN_MASK(0));
DUMPREG(INT_CHAN_STAT(3));
DUMPREG(INT_CHAN_MASK(3));
DUMPREG(INT_CLIENT0_STAT);
DUMPREG(INT_CLIENT0_MASK);
DUMPREG(INT_CLIENT1_STAT);
DUMPREG(INT_CLIENT1_MASK);
DUMPREG(INT_LIST0_STAT);
DUMPREG(INT_LIST0_MASK);
/*
* these are registers specific to VPE clients, we can make this
* function dump client registers specific to VPE or VIP based on
* who is using it
*/
DUMPREG(DEI_CHROMA1_CSTAT);
DUMPREG(DEI_LUMA1_CSTAT);
DUMPREG(DEI_CHROMA2_CSTAT);
DUMPREG(DEI_LUMA2_CSTAT);
DUMPREG(DEI_CHROMA3_CSTAT);
DUMPREG(DEI_LUMA3_CSTAT);
DUMPREG(DEI_MV_IN_CSTAT);
DUMPREG(DEI_MV_OUT_CSTAT);
DUMPREG(VIP_UP_Y_CSTAT);
DUMPREG(VIP_UP_UV_CSTAT);
DUMPREG(VPI_CTL_CSTAT);
}
/*
* Allocate a DMA buffer
*/
int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size)
{
buf->size = size;
buf->mapped = false;
buf->addr = kzalloc(size, GFP_KERNEL);
if (!buf->addr)
return -ENOMEM;
[media] ti-vpe: Fix typecast Addresses have the same size of unsigned long, and not u32. That removes a warning on 64 bits compilation: drivers/media//platform/ti-vpe/vpdma.c:332:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] WARN_ON(((u32) buf->addr & VPDMA_DESC_ALIGN) != 0); ^ include/asm-generic/bug.h:86:25: note: in definition of macro ‘WARN_ON’ int __ret_warn_on = !!(condition); \ ^ Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-24 22:22:20 +00:00
WARN_ON(((unsigned long)buf->addr & VPDMA_DESC_ALIGN) != 0);
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
return 0;
}
void vpdma_free_desc_buf(struct vpdma_buf *buf)
{
WARN_ON(buf->mapped);
kfree(buf->addr);
buf->addr = NULL;
buf->size = 0;
}
/*
* map descriptor/payload DMA buffer, enabling DMA access
*/
int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf)
{
struct device *dev = &vpdma->pdev->dev;
WARN_ON(buf->mapped);
buf->dma_addr = dma_map_single(dev, buf->addr, buf->size,
DMA_TO_DEVICE);
if (dma_mapping_error(dev, buf->dma_addr)) {
dev_err(dev, "failed to map buffer\n");
return -EINVAL;
}
buf->mapped = true;
return 0;
}
/*
* unmap descriptor/payload DMA buffer, disabling DMA access and
* allowing the main processor to acces the data
*/
void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf)
{
struct device *dev = &vpdma->pdev->dev;
if (buf->mapped)
dma_unmap_single(dev, buf->dma_addr, buf->size, DMA_TO_DEVICE);
buf->mapped = false;
}
/*
* create a descriptor list, the user of this list will append configuration,
* control and data descriptors to this list, this list will be submitted to
* VPDMA. VPDMA's list parser will go through each descriptor and perform the
* required DMA operations
*/
int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type)
{
int r;
r = vpdma_alloc_desc_buf(&list->buf, size);
if (r)
return r;
list->next = list->buf.addr;
list->type = type;
return 0;
}
/*
* once a descriptor list is parsed by VPDMA, we reset the list by emptying it,
* to allow new descriptors to be added to the list.
*/
void vpdma_reset_desc_list(struct vpdma_desc_list *list)
{
list->next = list->buf.addr;
}
/*
* free the buffer allocated fot the VPDMA descriptor list, this should be
* called when the user doesn't want to use VPDMA any more.
*/
void vpdma_free_desc_list(struct vpdma_desc_list *list)
{
vpdma_free_desc_buf(&list->buf);
list->next = NULL;
}
static bool vpdma_list_busy(struct vpdma_data *vpdma, int list_num)
{
return read_reg(vpdma, VPDMA_LIST_STAT_SYNC) & BIT(list_num + 16);
}
/*
* submit a list of DMA descriptors to the VPE VPDMA, do not wait for completion
*/
int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list)
{
/* we always use the first list */
int list_num = 0;
int list_size;
if (vpdma_list_busy(vpdma, list_num))
return -EBUSY;
/* 16-byte granularity */
list_size = (list->next - list->buf.addr) >> 4;
write_reg(vpdma, VPDMA_LIST_ADDR, (u32) list->buf.dma_addr);
write_reg(vpdma, VPDMA_LIST_ATTR,
(list_num << VPDMA_LIST_NUM_SHFT) |
(list->type << VPDMA_LIST_TYPE_SHFT) |
list_size);
return 0;
}
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
static void dump_cfd(struct vpdma_cfd *cfd)
{
int class;
class = cfd_get_class(cfd);
pr_debug("config descriptor of payload class: %s\n",
class == CFD_CLS_BLOCK ? "simple block" :
"address data block");
if (class == CFD_CLS_BLOCK)
pr_debug("word0: dst_addr_offset = 0x%08x\n",
cfd->dest_addr_offset);
if (class == CFD_CLS_BLOCK)
pr_debug("word1: num_data_wrds = %d\n", cfd->block_len);
pr_debug("word2: payload_addr = 0x%08x\n", cfd->payload_addr);
[media] ti-vpe: don't break long lines Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Acked-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-18 19:44:11 +00:00
pr_debug("word3: pkt_type = %d, direct = %d, class = %d, dest = %d, payload_len = %d\n",
cfd_get_pkt_type(cfd),
cfd_get_direct(cfd), class, cfd_get_dest(cfd),
cfd_get_payload_len(cfd));
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
}
/*
* append a configuration descriptor to the given descriptor list, where the
* payload is in the form of a simple data block specified in the descriptor
* header, this is used to upload scaler coefficients to the scaler module
*/
void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
struct vpdma_buf *blk, u32 dest_offset)
{
struct vpdma_cfd *cfd;
int len = blk->size;
WARN_ON(blk->dma_addr & VPDMA_DESC_ALIGN);
cfd = list->next;
WARN_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size));
cfd->dest_addr_offset = dest_offset;
cfd->block_len = len;
cfd->payload_addr = (u32) blk->dma_addr;
cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_BLOCK,
client, len >> 4);
list->next = cfd + 1;
dump_cfd(cfd);
}
/*
* append a configuration descriptor to the given descriptor list, where the
* payload is in the address data block format, this is used to a configure a
* discontiguous set of MMRs
*/
void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
struct vpdma_buf *adb)
{
struct vpdma_cfd *cfd;
unsigned int len = adb->size;
WARN_ON(len & VPDMA_ADB_SIZE_ALIGN);
WARN_ON(adb->dma_addr & VPDMA_DESC_ALIGN);
cfd = list->next;
BUG_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size));
cfd->w0 = 0;
cfd->w1 = 0;
cfd->payload_addr = (u32) adb->dma_addr;
cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_ADB,
client, len >> 4);
list->next = cfd + 1;
dump_cfd(cfd);
};
/*
* control descriptor format change based on what type of control descriptor it
* is, we only use 'sync on channel' control descriptors for now, so assume it's
* that
*/
static void dump_ctd(struct vpdma_ctd *ctd)
{
pr_debug("control descriptor\n");
pr_debug("word3: pkt_type = %d, source = %d, ctl_type = %d\n",
ctd_get_pkt_type(ctd), ctd_get_source(ctd), ctd_get_ctl(ctd));
}
/*
* append a 'sync on channel' type control descriptor to the given descriptor
* list, this descriptor stalls the VPDMA list till the time DMA is completed
* on the specified channel
*/
void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
enum vpdma_channel chan)
{
struct vpdma_ctd *ctd;
ctd = list->next;
WARN_ON((void *)(ctd + 1) > (list->buf.addr + list->buf.size));
ctd->w0 = 0;
ctd->w1 = 0;
ctd->w2 = 0;
ctd->type_source_ctl = ctd_type_source_ctl(chan_info[chan].num,
CTD_TYPE_SYNC_ON_CHANNEL);
list->next = ctd + 1;
dump_ctd(ctd);
}
static void dump_dtd(struct vpdma_dtd *dtd)
{
int dir, chan;
dir = dtd_get_dir(dtd);
chan = dtd_get_chan(dtd);
pr_debug("%s data transfer descriptor for channel %d\n",
dir == DTD_DIR_OUT ? "outbound" : "inbound", chan);
[media] ti-vpe: don't break long lines Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Acked-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-18 19:44:11 +00:00
pr_debug("word0: data_type = %d, notify = %d, field = %d, 1D = %d, even_ln_skp = %d, odd_ln_skp = %d, line_stride = %d\n",
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd_get_data_type(dtd), dtd_get_notify(dtd), dtd_get_field(dtd),
dtd_get_1d(dtd), dtd_get_even_line_skip(dtd),
dtd_get_odd_line_skip(dtd), dtd_get_line_stride(dtd));
if (dir == DTD_DIR_IN)
pr_debug("word1: line_length = %d, xfer_height = %d\n",
dtd_get_line_length(dtd), dtd_get_xfer_height(dtd));
[media] ti-vpe: use %pad for dma address drivers/media/platform/ti-vpe/vpdma.c: In function 'dump_dtd': include/linux/dynamic_debug.h:64:16: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Wformat=] static struct _ddebug __aligned(8) \ ^ include/linux/dynamic_debug.h:76:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA' DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ ^ include/linux/printk.h:263:2: note: in expansion of macro 'dynamic_pr_debug' dynamic_pr_debug(fmt, ##__VA_ARGS__) ^ >> drivers/media/platform/ti-vpe/vpdma.c:587:2: note: in expansion of macro 'pr_debug' pr_debug("word2: start_addr = 0x%08x\n", dtd->start_addr); ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-22 10:41:56 +00:00
pr_debug("word2: start_addr = %pad\n", &dtd->start_addr);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
[media] ti-vpe: don't break long lines Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Acked-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-18 19:44:11 +00:00
pr_debug("word3: pkt_type = %d, mode = %d, dir = %d, chan = %d, pri = %d, next_chan = %d\n",
dtd_get_pkt_type(dtd),
dtd_get_mode(dtd), dir, chan, dtd_get_priority(dtd),
dtd_get_next_chan(dtd));
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
if (dir == DTD_DIR_IN)
pr_debug("word4: frame_width = %d, frame_height = %d\n",
dtd_get_frame_width(dtd), dtd_get_frame_height(dtd));
else
[media] ti-vpe: don't break long lines Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Acked-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-18 19:44:11 +00:00
pr_debug("word4: desc_write_addr = 0x%08x, write_desc = %d, drp_data = %d, use_desc_reg = %d\n",
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd_get_desc_write_addr(dtd), dtd_get_write_desc(dtd),
dtd_get_drop_data(dtd), dtd_get_use_desc(dtd));
if (dir == DTD_DIR_IN)
pr_debug("word5: hor_start = %d, ver_start = %d\n",
dtd_get_h_start(dtd), dtd_get_v_start(dtd));
else
pr_debug("word5: max_width %d, max_height %d\n",
dtd_get_max_width(dtd), dtd_get_max_height(dtd));
treewide: Fix typos in printk Correct spelling typo in various part of kernel Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-12-08 15:22:53 +00:00
pr_debug("word6: client specific attr0 = 0x%08x\n", dtd->client_attr0);
pr_debug("word7: client specific attr1 = 0x%08x\n", dtd->client_attr1);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
}
/*
* append an outbound data transfer descriptor to the given descriptor list,
* this sets up a 'client to memory' VPDMA transfer for the given VPDMA channel
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
*
* @list: vpdma desc list to which we add this decriptor
* @width: width of the image in pixels in memory
* @c_rect: compose params of output image
* @fmt: vpdma data format of the buffer
* dma_addr: dma address as seen by VPDMA
* chan: VPDMA channel
* flags: VPDMA flags to configure some descriptor fileds
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
*/
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
void vpdma_add_out_dtd(struct vpdma_desc_list *list, int width,
const struct v4l2_rect *c_rect,
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
enum vpdma_channel chan, u32 flags)
{
int priority = 0;
int field = 0;
int notify = 1;
int channel, next_chan;
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
struct v4l2_rect rect = *c_rect;
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
int depth = fmt->depth;
int stride;
struct vpdma_dtd *dtd;
channel = next_chan = chan_info[chan].num;
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
if (fmt->type == VPDMA_DATA_FMT_TYPE_YUV &&
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
fmt->data_type == DATA_TYPE_C420) {
rect.height >>= 1;
rect.top >>= 1;
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
depth = 8;
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
}
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
stride = ALIGN((depth * width) >> 3, VPDMA_STRIDE_ALIGN);
dma_addr += rect.top * stride + (rect.left * depth >> 3);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd = list->next;
WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size));
dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type,
notify,
field,
!!(flags & VPDMA_DATA_FRAME_1D),
!!(flags & VPDMA_DATA_EVEN_LINE_SKIP),
!!(flags & VPDMA_DATA_ODD_LINE_SKIP),
stride);
dtd->w1 = 0;
dtd->start_addr = (u32) dma_addr;
dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED),
DTD_DIR_OUT, channel, priority, next_chan);
dtd->desc_write_addr = dtd_desc_write_addr(0, 0, 0, 0);
dtd->max_width_height = dtd_max_width_height(MAX_OUT_WIDTH_1920,
MAX_OUT_HEIGHT_1080);
dtd->client_attr0 = 0;
dtd->client_attr1 = 0;
list->next = dtd + 1;
dump_dtd(dtd);
}
/*
* append an inbound data transfer descriptor to the given descriptor list,
* this sets up a 'memory to client' VPDMA transfer for the given VPDMA channel
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
*
* @list: vpdma desc list to which we add this decriptor
* @width: width of the image in pixels in memory(not the cropped width)
* @c_rect: crop params of input image
* @fmt: vpdma data format of the buffer
* dma_addr: dma address as seen by VPDMA
* chan: VPDMA channel
* field: top or bottom field info of the input image
* flags: VPDMA flags to configure some descriptor fileds
* frame_width/height: the complete width/height of the image presented to the
* client (this makes sense when multiple channels are
* connected to the same client, forming a larger frame)
* start_h, start_v: position where the given channel starts providing pixel
* data to the client (makes sense when multiple channels
* contribute to the client)
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
*/
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
void vpdma_add_in_dtd(struct vpdma_desc_list *list, int width,
const struct v4l2_rect *c_rect,
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
enum vpdma_channel chan, int field, u32 flags, int frame_width,
int frame_height, int start_h, int start_v)
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
{
int priority = 0;
int notify = 1;
int depth = fmt->depth;
int channel, next_chan;
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
struct v4l2_rect rect = *c_rect;
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
int stride;
struct vpdma_dtd *dtd;
channel = next_chan = chan_info[chan].num;
[media] v4l: ti-vpe: Add a type specifier to describe vpdma data format type The struct vpdma_data_format holds the color format depth and the data_type value needed to be programmed in the data descriptors. However, it doesn't tell what type of color format is it, i.e, whether it is RGB, YUV or Misc. This information is needed when by vpdma library when forming descriptors. We modify the depth parameter for the chroma portion of the NV12 format. For this, we check if the data_type value is C420. This isn't sufficient as there are many YUV and RGB vpdma formats which have the same data_type value. Hence, we need to hold the type of the color format for the above case, and possibly more cases in the future. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-12 08:36:04 +00:00
if (fmt->type == VPDMA_DATA_FMT_TYPE_YUV &&
fmt->data_type == DATA_TYPE_C420) {
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
rect.height >>= 1;
rect.top >>= 1;
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
depth = 8;
}
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
stride = ALIGN((depth * width) >> 3, VPDMA_STRIDE_ALIGN);
dma_addr += rect.top * stride + (rect.left * depth >> 3);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd = list->next;
WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size));
dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type,
notify,
field,
!!(flags & VPDMA_DATA_FRAME_1D),
!!(flags & VPDMA_DATA_EVEN_LINE_SKIP),
!!(flags & VPDMA_DATA_ODD_LINE_SKIP),
stride);
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
dtd->xfer_length_height = dtd_xfer_length_height(rect.width,
rect.height);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd->start_addr = (u32) dma_addr;
dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED),
DTD_DIR_IN, channel, priority, next_chan);
dtd->frame_width_height = dtd_frame_width_height(frame_width,
frame_height);
[media] v4l: ti-vpe: Fix some params in VPE data descriptors Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:08 +00:00
dtd->start_h_v = dtd_start_h_v(start_h, start_v);
[media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors Create functions which the VPE driver can use to create a VPDMA descriptor and add it to a VPDMA descriptor list. These functions take a pointer to an existing list, and append the configuration/data/control descriptor header to the list. In the case of configuration descriptors, the creation of a payload block may be required(the payloads can hold VPE MMR values, or scaler coefficients). The allocation of the payload buffer and it's content is left to the VPE driver. However, the VPDMA library provides helper macros to create payload in the correct format. Add debug functions to dump the descriptors in a way such that it's easy to see the values of different fields in the descriptors. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:46 +00:00
dtd->client_attr0 = 0;
dtd->client_attr1 = 0;
list->next = dtd + 1;
dump_dtd(dtd);
}
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
/* set or clear the mask for list complete interrupt */
void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
bool enable)
{
u32 val;
val = read_reg(vpdma, VPDMA_INT_LIST0_MASK);
if (enable)
val |= (1 << (list_num * 2));
else
val &= ~(1 << (list_num * 2));
write_reg(vpdma, VPDMA_INT_LIST0_MASK, val);
}
/* clear previosuly occured list intterupts in the LIST_STAT register */
void vpdma_clear_list_stat(struct vpdma_data *vpdma)
{
write_reg(vpdma, VPDMA_INT_LIST0_STAT,
read_reg(vpdma, VPDMA_INT_LIST0_STAT));
}
/*
* configures the output mode of the line buffer for the given client, the
* line buffer content can either be mirrored(each line repeated twice) or
* passed to the client as is
*/
void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
enum vpdma_channel chan)
{
int client_cstat = chan_info[chan].cstat_offset;
write_field_reg(vpdma, client_cstat, line_mode,
VPDMA_CSTAT_LINE_MODE_MASK, VPDMA_CSTAT_LINE_MODE_SHIFT);
}
/*
* configures the event which should trigger VPDMA transfer for the given
* client
*/
void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
enum vpdma_frame_start_event fs_event,
enum vpdma_channel chan)
{
int client_cstat = chan_info[chan].cstat_offset;
write_field_reg(vpdma, client_cstat, fs_event,
VPDMA_CSTAT_FRAME_START_MASK, VPDMA_CSTAT_FRAME_START_SHIFT);
}
static void vpdma_firmware_cb(const struct firmware *f, void *context)
{
struct vpdma_data *vpdma = context;
struct vpdma_buf fw_dma_buf;
int i, r;
dev_dbg(&vpdma->pdev->dev, "firmware callback\n");
if (!f || !f->data) {
dev_err(&vpdma->pdev->dev, "couldn't get firmware\n");
return;
}
/* already initialized */
if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK,
VPDMA_LIST_RDY_SHFT)) {
[media] v4l: ti-vpe: register video device only when firmware is loaded vpe fops(vpe_open in particular) should be called only when VPDMA firmware is loaded. File operations on the video device are possible the moment it is registered. Currently, we register the video device for VPE at driver probe, after calling a vpdma helper to initialize VPDMA and load firmware. This function is non-blocking(it calls request_firmware_nowait()), and doesn't ensure that the firmware is actually loaded when it returns. We remove the device registration from vpe probe, and move it to a callback provided by the vpe driver to the vpdma library, through vpdma_create(). The ready field in vpdma_data is no longer needed since we always have firmware loaded before the device is registered. A minor problem with this approach is that if the video_register_device fails(which doesn't really happen), the vpe platform device would be registered. however, there won't be any v4l2 device corresponding to it. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:04 +00:00
vpdma->cb(vpdma->pdev);
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
return;
}
r = vpdma_alloc_desc_buf(&fw_dma_buf, f->size);
if (r) {
dev_err(&vpdma->pdev->dev,
"failed to allocate dma buffer for firmware\n");
goto rel_fw;
}
memcpy(fw_dma_buf.addr, f->data, f->size);
vpdma_map_desc_buf(vpdma, &fw_dma_buf);
write_reg(vpdma, VPDMA_LIST_ADDR, (u32) fw_dma_buf.dma_addr);
for (i = 0; i < 100; i++) { /* max 1 second */
msleep_interruptible(10);
if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK,
VPDMA_LIST_RDY_SHFT))
break;
}
if (i == 100) {
dev_err(&vpdma->pdev->dev, "firmware upload failed\n");
goto free_buf;
}
[media] v4l: ti-vpe: register video device only when firmware is loaded vpe fops(vpe_open in particular) should be called only when VPDMA firmware is loaded. File operations on the video device are possible the moment it is registered. Currently, we register the video device for VPE at driver probe, after calling a vpdma helper to initialize VPDMA and load firmware. This function is non-blocking(it calls request_firmware_nowait()), and doesn't ensure that the firmware is actually loaded when it returns. We remove the device registration from vpe probe, and move it to a callback provided by the vpe driver to the vpdma library, through vpdma_create(). The ready field in vpdma_data is no longer needed since we always have firmware loaded before the device is registered. A minor problem with this approach is that if the video_register_device fails(which doesn't really happen), the vpe platform device would be registered. however, there won't be any v4l2 device corresponding to it. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:04 +00:00
vpdma->cb(vpdma->pdev);
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
free_buf:
vpdma_unmap_desc_buf(vpdma, &fw_dma_buf);
vpdma_free_desc_buf(&fw_dma_buf);
rel_fw:
release_firmware(f);
}
static int vpdma_load_firmware(struct vpdma_data *vpdma)
{
int r;
struct device *dev = &vpdma->pdev->dev;
r = request_firmware_nowait(THIS_MODULE, 1,
(const char *) VPDMA_FIRMWARE, dev, GFP_KERNEL, vpdma,
vpdma_firmware_cb);
if (r) {
dev_err(dev, "firmware not available %s\n", VPDMA_FIRMWARE);
return r;
} else {
dev_info(dev, "loading firmware %s\n", VPDMA_FIRMWARE);
}
return 0;
}
[media] v4l: ti-vpe: register video device only when firmware is loaded vpe fops(vpe_open in particular) should be called only when VPDMA firmware is loaded. File operations on the video device are possible the moment it is registered. Currently, we register the video device for VPE at driver probe, after calling a vpdma helper to initialize VPDMA and load firmware. This function is non-blocking(it calls request_firmware_nowait()), and doesn't ensure that the firmware is actually loaded when it returns. We remove the device registration from vpe probe, and move it to a callback provided by the vpe driver to the vpdma library, through vpdma_create(). The ready field in vpdma_data is no longer needed since we always have firmware loaded before the device is registered. A minor problem with this approach is that if the video_register_device fails(which doesn't really happen), the vpe platform device would be registered. however, there won't be any v4l2 device corresponding to it. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:04 +00:00
struct vpdma_data *vpdma_create(struct platform_device *pdev,
void (*cb)(struct platform_device *pdev))
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
{
struct resource *res;
struct vpdma_data *vpdma;
int r;
dev_dbg(&pdev->dev, "vpdma_create\n");
vpdma = devm_kzalloc(&pdev->dev, sizeof(*vpdma), GFP_KERNEL);
if (!vpdma) {
dev_err(&pdev->dev, "couldn't alloc vpdma_dev\n");
return ERR_PTR(-ENOMEM);
}
vpdma->pdev = pdev;
[media] v4l: ti-vpe: register video device only when firmware is loaded vpe fops(vpe_open in particular) should be called only when VPDMA firmware is loaded. File operations on the video device are possible the moment it is registered. Currently, we register the video device for VPE at driver probe, after calling a vpdma helper to initialize VPDMA and load firmware. This function is non-blocking(it calls request_firmware_nowait()), and doesn't ensure that the firmware is actually loaded when it returns. We remove the device registration from vpe probe, and move it to a callback provided by the vpe driver to the vpdma library, through vpdma_create(). The ready field in vpdma_data is no longer needed since we always have firmware loaded before the device is registered. A minor problem with this approach is that if the video_register_device fails(which doesn't really happen), the vpe platform device would be registered. however, there won't be any v4l2 device corresponding to it. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-13 11:44:04 +00:00
vpdma->cb = cb;
[media] v4l: ti-vpe: Create a vpdma helper library The primary function of VPDMA is to move data between external memory and internal processing modules(in our case, VPE) that source or sink data. VPDMA is capable of buffering this data and then delivering the data as demanded to the modules as programmed. The modules that source or sink data are referred to as clients or ports. A channel is setup inside the VPDMA to connect a specific memory buffer to a specific client. The VPDMA centralizes the DMA control functions and buffering required to allow all the clients to minimize the effect of long latency times. Add the following to the VPDMA helper: - A data struct which describe VPDMA channels. For now, these channels are the ones used only by VPE, the list of channels will increase when VIP(Video Input Port) also uses the VPDMA library. This channel information will be used to populate fields required by data descriptors. - Data structs which describe the different data types supported by VPDMA. This data type information will be used to populate fields required by data descriptors and used by the VPE driver to map a V4L2 format to the corresponding VPDMA data type. - Provide VPDMA register offset definitions, functions to read, write and modify VPDMA registers. - Functions to create and submit a VPDMA list. A list is a group of descriptors that makes up a set of DMA transfers that need to be completed. Each descriptor will either perform a DMA transaction to fetch input buffers and write to output buffers(data descriptors), or configure the MMRs of sub blocks of VPE(configuration descriptors), or provide control information to VPDMA (control descriptors). - Functions to allocate, map and unmap buffers needed for the descriptor list, payloads containing MMR values and scaler coefficients. These use the DMA mapping APIs to ensure exclusive access to VPDMA. - Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt on the VPE interrupt line when a descriptor list is parsed completely and the DMA transactions are completed. This requires masking the events in VPDMA registers and configuring some top level VPE interrupt registers. - Enable some VPDMA specific parameters: frame start event(when to start DMA for a client) and line mode(whether each line fetched should be mirrored or not). - Function to load firmware required by VPDMA. VPDMA requires a firmware for it's internal list manager. We add the required request_firmware apis to fetch this firmware from user space. - Function to dump VPDMA registers. - A function to initialize and create a VPDMA instance, this will be called by the VPE driver with it's platform device pointer, this function will take care of loading VPDMA firmware and returning a vpdma_data instance back to the VPE driver. The VIP driver will also call the same init function to initialize it's own VPDMA instance. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 05:36:45 +00:00
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpdma");
if (res == NULL) {
dev_err(&pdev->dev, "missing platform resources data\n");
return ERR_PTR(-ENODEV);
}
vpdma->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
if (!vpdma->base) {
dev_err(&pdev->dev, "failed to ioremap\n");
return ERR_PTR(-ENOMEM);
}
r = vpdma_load_firmware(vpdma);
if (r) {
pr_err("failed to load firmware %s\n", VPDMA_FIRMWARE);
return ERR_PTR(r);
}
return vpdma;
}
MODULE_FIRMWARE(VPDMA_FIRMWARE);
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