forked from Minki/linux
de1135d44f
The OMAP3 ISP CCDC, preview engine and resizer entities perform image processing and scaling. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: David Cohen <dacohen@gmail.com> Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Vimarsh Zutshi <vimarsh.zutshi@gmail.com> Signed-off-by: Tuukka Toivonen <tuukkat76@gmail.com> Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Antti Koskipaa <akoskipa@gmail.com> Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: RaniSuneela <r-m@ti.com> Signed-off-by: Atanas Filipov <afilipov@mm-sol.com> Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Nayden Kanchev <nkanchev@mm-sol.com> Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Dominic Curran <dcurran@ti.com> Signed-off-by: Ilkka Myllyperkio <ilkka.myllyperkio@sofica.fi> Signed-off-by: Pallavi Kulkarni <p-kulkarni@ti.com> Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2114 lines
60 KiB
C
2114 lines
60 KiB
C
/*
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* isppreview.c
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*
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* TI OMAP3 ISP driver - Preview module
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*
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* Copyright (C) 2010 Nokia Corporation
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* Copyright (C) 2009 Texas Instruments, Inc.
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*
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* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Sakari Ailus <sakari.ailus@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include <linux/device.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/uaccess.h>
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#include "isp.h"
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#include "ispreg.h"
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#include "isppreview.h"
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/* Default values in Office Flourescent Light for RGBtoRGB Blending */
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static struct omap3isp_prev_rgbtorgb flr_rgb2rgb = {
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{ /* RGB-RGB Matrix */
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{0x01E2, 0x0F30, 0x0FEE},
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{0x0F9B, 0x01AC, 0x0FB9},
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{0x0FE0, 0x0EC0, 0x0260}
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}, /* RGB Offset */
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{0x0000, 0x0000, 0x0000}
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};
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/* Default values in Office Flourescent Light for RGB to YUV Conversion*/
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static struct omap3isp_prev_csc flr_prev_csc = {
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{ /* CSC Coef Matrix */
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{66, 129, 25},
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{-38, -75, 112},
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{112, -94 , -18}
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}, /* CSC Offset */
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{0x0, 0x0, 0x0}
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};
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/* Default values in Office Flourescent Light for CFA Gradient*/
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#define FLR_CFA_GRADTHRS_HORZ 0x28
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#define FLR_CFA_GRADTHRS_VERT 0x28
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/* Default values in Office Flourescent Light for Chroma Suppression*/
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#define FLR_CSUP_GAIN 0x0D
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#define FLR_CSUP_THRES 0xEB
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/* Default values in Office Flourescent Light for Noise Filter*/
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#define FLR_NF_STRGTH 0x03
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/* Default values for White Balance */
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#define FLR_WBAL_DGAIN 0x100
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#define FLR_WBAL_COEF 0x20
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/* Default values in Office Flourescent Light for Black Adjustment*/
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#define FLR_BLKADJ_BLUE 0x0
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#define FLR_BLKADJ_GREEN 0x0
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#define FLR_BLKADJ_RED 0x0
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#define DEF_DETECT_CORRECT_VAL 0xe
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#define PREV_MIN_WIDTH 64
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#define PREV_MIN_HEIGHT 8
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#define PREV_MAX_HEIGHT 16384
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/*
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* Coeficient Tables for the submodules in Preview.
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* Array is initialised with the values from.the tables text file.
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*/
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/*
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* CFA Filter Coefficient Table
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*
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*/
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static u32 cfa_coef_table[] = {
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#include "cfa_coef_table.h"
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};
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/*
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* Default Gamma Correction Table - All components
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*/
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static u32 gamma_table[] = {
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#include "gamma_table.h"
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};
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/*
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* Noise Filter Threshold table
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*/
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static u32 noise_filter_table[] = {
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#include "noise_filter_table.h"
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};
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/*
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* Luminance Enhancement Table
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*/
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static u32 luma_enhance_table[] = {
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#include "luma_enhance_table.h"
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};
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/*
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* preview_enable_invalaw - Enable/Disable Inverse A-Law module in Preview.
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* @enable: 1 - Reverse the A-Law done in CCDC.
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*/
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static void
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preview_enable_invalaw(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW);
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}
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/*
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* preview_enable_drkframe_capture - Enable/Disable of the darkframe capture.
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* @prev -
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* @enable: 1 - Enable, 0 - Disable
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*
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* NOTE: PRV_WSDR_ADDR and PRV_WADD_OFFSET must be set also
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* The proccess is applied for each captured frame.
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*/
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static void
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preview_enable_drkframe_capture(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DRKFCAP);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DRKFCAP);
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}
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/*
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* preview_enable_drkframe - Enable/Disable of the darkframe subtract.
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* @enable: 1 - Acquires memory bandwidth since the pixels in each frame is
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* subtracted with the pixels in the current frame.
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*
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* The proccess is applied for each captured frame.
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*/
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static void
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preview_enable_drkframe(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DRKFEN);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DRKFEN);
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}
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/*
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* preview_config_drkf_shadcomp - Configures shift value in shading comp.
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* @scomp_shtval: 3bit value of shift used in shading compensation.
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*/
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static void
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preview_config_drkf_shadcomp(struct isp_prev_device *prev,
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const void *scomp_shtval)
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{
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struct isp_device *isp = to_isp_device(prev);
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const u32 *shtval = scomp_shtval;
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isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_SCOMP_SFT_MASK,
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*shtval << ISPPRV_PCR_SCOMP_SFT_SHIFT);
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}
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/*
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* preview_enable_hmed - Enables/Disables of the Horizontal Median Filter.
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* @enable: 1 - Enables Horizontal Median Filter.
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*/
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static void
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preview_enable_hmed(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_HMEDEN);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_HMEDEN);
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}
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/*
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* preview_config_hmed - Configures the Horizontal Median Filter.
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* @prev_hmed: Structure containing the odd and even distance between the
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* pixels in the image along with the filter threshold.
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*/
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static void
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preview_config_hmed(struct isp_prev_device *prev, const void *prev_hmed)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_hmed *hmed = prev_hmed;
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isp_reg_writel(isp, (hmed->odddist == 1 ? 0 : ISPPRV_HMED_ODDDIST) |
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(hmed->evendist == 1 ? 0 : ISPPRV_HMED_EVENDIST) |
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(hmed->thres << ISPPRV_HMED_THRESHOLD_SHIFT),
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OMAP3_ISP_IOMEM_PREV, ISPPRV_HMED);
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}
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/*
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* preview_config_noisefilter - Configures the Noise Filter.
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* @prev_nf: Structure containing the noisefilter table, strength to be used
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* for the noise filter and the defect correction enable flag.
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*/
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static void
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preview_config_noisefilter(struct isp_prev_device *prev, const void *prev_nf)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_nf *nf = prev_nf;
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unsigned int i;
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isp_reg_writel(isp, nf->spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF);
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isp_reg_writel(isp, ISPPRV_NF_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_NF_TBL_SIZE; i++) {
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isp_reg_writel(isp, nf->table[i],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
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}
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}
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/*
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* preview_config_dcor - Configures the defect correction
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* @prev_dcor: Structure containing the defect correct thresholds
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*/
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static void
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preview_config_dcor(struct isp_prev_device *prev, const void *prev_dcor)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_dcor *dcor = prev_dcor;
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isp_reg_writel(isp, dcor->detect_correct[0],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0);
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isp_reg_writel(isp, dcor->detect_correct[1],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1);
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isp_reg_writel(isp, dcor->detect_correct[2],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2);
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isp_reg_writel(isp, dcor->detect_correct[3],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3);
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isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DCCOUP,
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dcor->couplet_mode_en ? ISPPRV_PCR_DCCOUP : 0);
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}
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/*
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* preview_config_cfa - Configures the CFA Interpolation parameters.
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* @prev_cfa: Structure containing the CFA interpolation table, CFA format
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* in the image, vertical and horizontal gradient threshold.
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*/
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static void
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preview_config_cfa(struct isp_prev_device *prev, const void *prev_cfa)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_cfa *cfa = prev_cfa;
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unsigned int i;
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isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_CFAFMT_MASK,
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cfa->format << ISPPRV_PCR_CFAFMT_SHIFT);
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isp_reg_writel(isp,
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(cfa->gradthrs_vert << ISPPRV_CFA_GRADTH_VER_SHIFT) |
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(cfa->gradthrs_horz << ISPPRV_CFA_GRADTH_HOR_SHIFT),
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CFA);
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isp_reg_writel(isp, ISPPRV_CFA_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_CFA_TBL_SIZE; i++) {
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isp_reg_writel(isp, cfa->table[i],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
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}
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}
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/*
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* preview_config_gammacorrn - Configures the Gamma Correction table values
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* @gtable: Structure containing the table for red, blue, green gamma table.
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*/
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static void
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preview_config_gammacorrn(struct isp_prev_device *prev, const void *gtable)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_gtables *gt = gtable;
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unsigned int i;
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isp_reg_writel(isp, ISPPRV_REDGAMMA_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++)
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isp_reg_writel(isp, gt->red[i], OMAP3_ISP_IOMEM_PREV,
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ISPPRV_SET_TBL_DATA);
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isp_reg_writel(isp, ISPPRV_GREENGAMMA_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++)
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isp_reg_writel(isp, gt->green[i], OMAP3_ISP_IOMEM_PREV,
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ISPPRV_SET_TBL_DATA);
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isp_reg_writel(isp, ISPPRV_BLUEGAMMA_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++)
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isp_reg_writel(isp, gt->blue[i], OMAP3_ISP_IOMEM_PREV,
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ISPPRV_SET_TBL_DATA);
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}
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/*
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* preview_config_luma_enhancement - Sets the Luminance Enhancement table.
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* @ytable: Structure containing the table for Luminance Enhancement table.
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*/
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static void
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preview_config_luma_enhancement(struct isp_prev_device *prev,
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const void *ytable)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_luma *yt = ytable;
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unsigned int i;
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isp_reg_writel(isp, ISPPRV_YENH_TABLE_ADDR,
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
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for (i = 0; i < OMAP3ISP_PREV_YENH_TBL_SIZE; i++) {
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isp_reg_writel(isp, yt->table[i],
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OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
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}
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}
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/*
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* preview_config_chroma_suppression - Configures the Chroma Suppression.
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* @csup: Structure containing the threshold value for suppression
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* and the hypass filter enable flag.
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*/
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static void
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preview_config_chroma_suppression(struct isp_prev_device *prev,
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const void *csup)
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{
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struct isp_device *isp = to_isp_device(prev);
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const struct omap3isp_prev_csup *cs = csup;
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isp_reg_writel(isp,
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cs->gain | (cs->thres << ISPPRV_CSUP_THRES_SHIFT) |
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(cs->hypf_en << ISPPRV_CSUP_HPYF_SHIFT),
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OMAP3_ISP_IOMEM_PREV, ISPPRV_CSUP);
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}
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/*
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* preview_enable_noisefilter - Enables/Disables the Noise Filter.
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* @enable: 1 - Enables the Noise Filter.
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*/
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static void
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preview_enable_noisefilter(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_NFEN);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_NFEN);
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}
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/*
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* preview_enable_dcor - Enables/Disables the defect correction.
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* @enable: 1 - Enables the defect correction.
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*/
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static void
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preview_enable_dcor(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DCOREN);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_DCOREN);
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}
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/*
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* preview_enable_cfa - Enable/Disable the CFA Interpolation.
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* @enable: 1 - Enables the CFA.
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*/
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static void
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preview_enable_cfa(struct isp_prev_device *prev, u8 enable)
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{
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struct isp_device *isp = to_isp_device(prev);
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if (enable)
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isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_CFAEN);
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else
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isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
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ISPPRV_PCR_CFAEN);
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}
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/*
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* preview_enable_gammabypass - Enables/Disables the GammaByPass
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* @enable: 1 - Bypasses Gamma - 10bit input is cropped to 8MSB.
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* 0 - Goes through Gamma Correction. input and output is 10bit.
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*/
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static void
|
|
preview_enable_gammabypass(struct isp_prev_device *prev, u8 enable)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
if (enable)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_GAMMA_BYPASS);
|
|
else
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_GAMMA_BYPASS);
|
|
}
|
|
|
|
/*
|
|
* preview_enable_luma_enhancement - Enables/Disables Luminance Enhancement
|
|
* @enable: 1 - Enable the Luminance Enhancement.
|
|
*/
|
|
static void
|
|
preview_enable_luma_enhancement(struct isp_prev_device *prev, u8 enable)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
if (enable)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_YNENHEN);
|
|
else
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_YNENHEN);
|
|
}
|
|
|
|
/*
|
|
* preview_enable_chroma_suppression - Enables/Disables Chrominance Suppr.
|
|
* @enable: 1 - Enable the Chrominance Suppression.
|
|
*/
|
|
static void
|
|
preview_enable_chroma_suppression(struct isp_prev_device *prev, u8 enable)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
if (enable)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_SUPEN);
|
|
else
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_SUPEN);
|
|
}
|
|
|
|
/*
|
|
* preview_config_whitebalance - Configures the White Balance parameters.
|
|
* @prev_wbal: Structure containing the digital gain and white balance
|
|
* coefficient.
|
|
*
|
|
* Coefficient matrix always with default values.
|
|
*/
|
|
static void
|
|
preview_config_whitebalance(struct isp_prev_device *prev, const void *prev_wbal)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct omap3isp_prev_wbal *wbal = prev_wbal;
|
|
u32 val;
|
|
|
|
isp_reg_writel(isp, wbal->dgain, OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN);
|
|
|
|
val = wbal->coef0 << ISPPRV_WBGAIN_COEF0_SHIFT;
|
|
val |= wbal->coef1 << ISPPRV_WBGAIN_COEF1_SHIFT;
|
|
val |= wbal->coef2 << ISPPRV_WBGAIN_COEF2_SHIFT;
|
|
val |= wbal->coef3 << ISPPRV_WBGAIN_COEF3_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN);
|
|
|
|
isp_reg_writel(isp,
|
|
ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_0_SHIFT |
|
|
ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_1_SHIFT |
|
|
ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_2_SHIFT |
|
|
ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_3_SHIFT |
|
|
ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_0_SHIFT |
|
|
ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_1_SHIFT |
|
|
ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_2_SHIFT |
|
|
ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_3_SHIFT |
|
|
ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_0_SHIFT |
|
|
ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_1_SHIFT |
|
|
ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_2_SHIFT |
|
|
ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_3_SHIFT |
|
|
ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_0_SHIFT |
|
|
ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_1_SHIFT |
|
|
ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_2_SHIFT |
|
|
ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_3_SHIFT,
|
|
OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL);
|
|
}
|
|
|
|
/*
|
|
* preview_config_blkadj - Configures the Black Adjustment parameters.
|
|
* @prev_blkadj: Structure containing the black adjustment towards red, green,
|
|
* blue.
|
|
*/
|
|
static void
|
|
preview_config_blkadj(struct isp_prev_device *prev, const void *prev_blkadj)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct omap3isp_prev_blkadj *blkadj = prev_blkadj;
|
|
|
|
isp_reg_writel(isp, (blkadj->blue << ISPPRV_BLKADJOFF_B_SHIFT) |
|
|
(blkadj->green << ISPPRV_BLKADJOFF_G_SHIFT) |
|
|
(blkadj->red << ISPPRV_BLKADJOFF_R_SHIFT),
|
|
OMAP3_ISP_IOMEM_PREV, ISPPRV_BLKADJOFF);
|
|
}
|
|
|
|
/*
|
|
* preview_config_rgb_blending - Configures the RGB-RGB Blending matrix.
|
|
* @rgb2rgb: Structure containing the rgb to rgb blending matrix and the rgb
|
|
* offset.
|
|
*/
|
|
static void
|
|
preview_config_rgb_blending(struct isp_prev_device *prev, const void *rgb2rgb)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct omap3isp_prev_rgbtorgb *rgbrgb = rgb2rgb;
|
|
u32 val;
|
|
|
|
val = (rgbrgb->matrix[0][0] & 0xfff) << ISPPRV_RGB_MAT1_MTX_RR_SHIFT;
|
|
val |= (rgbrgb->matrix[0][1] & 0xfff) << ISPPRV_RGB_MAT1_MTX_GR_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT1);
|
|
|
|
val = (rgbrgb->matrix[0][2] & 0xfff) << ISPPRV_RGB_MAT2_MTX_BR_SHIFT;
|
|
val |= (rgbrgb->matrix[1][0] & 0xfff) << ISPPRV_RGB_MAT2_MTX_RG_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT2);
|
|
|
|
val = (rgbrgb->matrix[1][1] & 0xfff) << ISPPRV_RGB_MAT3_MTX_GG_SHIFT;
|
|
val |= (rgbrgb->matrix[1][2] & 0xfff) << ISPPRV_RGB_MAT3_MTX_BG_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT3);
|
|
|
|
val = (rgbrgb->matrix[2][0] & 0xfff) << ISPPRV_RGB_MAT4_MTX_RB_SHIFT;
|
|
val |= (rgbrgb->matrix[2][1] & 0xfff) << ISPPRV_RGB_MAT4_MTX_GB_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT4);
|
|
|
|
val = (rgbrgb->matrix[2][2] & 0xfff) << ISPPRV_RGB_MAT5_MTX_BB_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT5);
|
|
|
|
val = (rgbrgb->offset[0] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFR_SHIFT;
|
|
val |= (rgbrgb->offset[1] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFG_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF1);
|
|
|
|
val = (rgbrgb->offset[2] & 0x3ff) << ISPPRV_RGB_OFF2_MTX_OFFB_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF2);
|
|
}
|
|
|
|
/*
|
|
* Configures the RGB-YCbYCr conversion matrix
|
|
* @prev_csc: Structure containing the RGB to YCbYCr matrix and the
|
|
* YCbCr offset.
|
|
*/
|
|
static void
|
|
preview_config_rgb_to_ycbcr(struct isp_prev_device *prev, const void *prev_csc)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct omap3isp_prev_csc *csc = prev_csc;
|
|
u32 val;
|
|
|
|
val = (csc->matrix[0][0] & 0x3ff) << ISPPRV_CSC0_RY_SHIFT;
|
|
val |= (csc->matrix[0][1] & 0x3ff) << ISPPRV_CSC0_GY_SHIFT;
|
|
val |= (csc->matrix[0][2] & 0x3ff) << ISPPRV_CSC0_BY_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC0);
|
|
|
|
val = (csc->matrix[1][0] & 0x3ff) << ISPPRV_CSC1_RCB_SHIFT;
|
|
val |= (csc->matrix[1][1] & 0x3ff) << ISPPRV_CSC1_GCB_SHIFT;
|
|
val |= (csc->matrix[1][2] & 0x3ff) << ISPPRV_CSC1_BCB_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC1);
|
|
|
|
val = (csc->matrix[2][0] & 0x3ff) << ISPPRV_CSC2_RCR_SHIFT;
|
|
val |= (csc->matrix[2][1] & 0x3ff) << ISPPRV_CSC2_GCR_SHIFT;
|
|
val |= (csc->matrix[2][2] & 0x3ff) << ISPPRV_CSC2_BCR_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC2);
|
|
|
|
val = (csc->offset[0] & 0xff) << ISPPRV_CSC_OFFSET_Y_SHIFT;
|
|
val |= (csc->offset[1] & 0xff) << ISPPRV_CSC_OFFSET_CB_SHIFT;
|
|
val |= (csc->offset[2] & 0xff) << ISPPRV_CSC_OFFSET_CR_SHIFT;
|
|
isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC_OFFSET);
|
|
}
|
|
|
|
/*
|
|
* preview_update_contrast - Updates the contrast.
|
|
* @contrast: Pointer to hold the current programmed contrast value.
|
|
*
|
|
* Value should be programmed before enabling the module.
|
|
*/
|
|
static void
|
|
preview_update_contrast(struct isp_prev_device *prev, u8 contrast)
|
|
{
|
|
struct prev_params *params = &prev->params;
|
|
|
|
if (params->contrast != (contrast * ISPPRV_CONTRAST_UNITS)) {
|
|
params->contrast = contrast * ISPPRV_CONTRAST_UNITS;
|
|
prev->update |= PREV_CONTRAST;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* preview_config_contrast - Configures the Contrast.
|
|
* @params: Contrast value (u8 pointer, U8Q0 format).
|
|
*
|
|
* Value should be programmed before enabling the module.
|
|
*/
|
|
static void
|
|
preview_config_contrast(struct isp_prev_device *prev, const void *params)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT,
|
|
0xff << ISPPRV_CNT_BRT_CNT_SHIFT,
|
|
*(u8 *)params << ISPPRV_CNT_BRT_CNT_SHIFT);
|
|
}
|
|
|
|
/*
|
|
* preview_update_brightness - Updates the brightness in preview module.
|
|
* @brightness: Pointer to hold the current programmed brightness value.
|
|
*
|
|
*/
|
|
static void
|
|
preview_update_brightness(struct isp_prev_device *prev, u8 brightness)
|
|
{
|
|
struct prev_params *params = &prev->params;
|
|
|
|
if (params->brightness != (brightness * ISPPRV_BRIGHT_UNITS)) {
|
|
params->brightness = brightness * ISPPRV_BRIGHT_UNITS;
|
|
prev->update |= PREV_BRIGHTNESS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* preview_config_brightness - Configures the brightness.
|
|
* @params: Brightness value (u8 pointer, U8Q0 format).
|
|
*/
|
|
static void
|
|
preview_config_brightness(struct isp_prev_device *prev, const void *params)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT,
|
|
0xff << ISPPRV_CNT_BRT_BRT_SHIFT,
|
|
*(u8 *)params << ISPPRV_CNT_BRT_BRT_SHIFT);
|
|
}
|
|
|
|
/*
|
|
* preview_config_yc_range - Configures the max and min Y and C values.
|
|
* @yclimit: Structure containing the range of Y and C values.
|
|
*/
|
|
static void
|
|
preview_config_yc_range(struct isp_prev_device *prev, const void *yclimit)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct omap3isp_prev_yclimit *yc = yclimit;
|
|
|
|
isp_reg_writel(isp,
|
|
yc->maxC << ISPPRV_SETUP_YC_MAXC_SHIFT |
|
|
yc->maxY << ISPPRV_SETUP_YC_MAXY_SHIFT |
|
|
yc->minC << ISPPRV_SETUP_YC_MINC_SHIFT |
|
|
yc->minY << ISPPRV_SETUP_YC_MINY_SHIFT,
|
|
OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC);
|
|
}
|
|
|
|
/* preview parameters update structure */
|
|
struct preview_update {
|
|
int cfg_bit;
|
|
int feature_bit;
|
|
void (*config)(struct isp_prev_device *, const void *);
|
|
void (*enable)(struct isp_prev_device *, u8);
|
|
};
|
|
|
|
static struct preview_update update_attrs[] = {
|
|
{OMAP3ISP_PREV_LUMAENH, PREV_LUMA_ENHANCE,
|
|
preview_config_luma_enhancement,
|
|
preview_enable_luma_enhancement},
|
|
{OMAP3ISP_PREV_INVALAW, PREV_INVERSE_ALAW,
|
|
NULL,
|
|
preview_enable_invalaw},
|
|
{OMAP3ISP_PREV_HRZ_MED, PREV_HORZ_MEDIAN_FILTER,
|
|
preview_config_hmed,
|
|
preview_enable_hmed},
|
|
{OMAP3ISP_PREV_CFA, PREV_CFA,
|
|
preview_config_cfa,
|
|
preview_enable_cfa},
|
|
{OMAP3ISP_PREV_CHROMA_SUPP, PREV_CHROMA_SUPPRESS,
|
|
preview_config_chroma_suppression,
|
|
preview_enable_chroma_suppression},
|
|
{OMAP3ISP_PREV_WB, PREV_WB,
|
|
preview_config_whitebalance,
|
|
NULL},
|
|
{OMAP3ISP_PREV_BLKADJ, PREV_BLKADJ,
|
|
preview_config_blkadj,
|
|
NULL},
|
|
{OMAP3ISP_PREV_RGB2RGB, PREV_RGB2RGB,
|
|
preview_config_rgb_blending,
|
|
NULL},
|
|
{OMAP3ISP_PREV_COLOR_CONV, PREV_COLOR_CONV,
|
|
preview_config_rgb_to_ycbcr,
|
|
NULL},
|
|
{OMAP3ISP_PREV_YC_LIMIT, PREV_YCLIMITS,
|
|
preview_config_yc_range,
|
|
NULL},
|
|
{OMAP3ISP_PREV_DEFECT_COR, PREV_DEFECT_COR,
|
|
preview_config_dcor,
|
|
preview_enable_dcor},
|
|
{OMAP3ISP_PREV_GAMMABYPASS, PREV_GAMMA_BYPASS,
|
|
NULL,
|
|
preview_enable_gammabypass},
|
|
{OMAP3ISP_PREV_DRK_FRM_CAPTURE, PREV_DARK_FRAME_CAPTURE,
|
|
NULL,
|
|
preview_enable_drkframe_capture},
|
|
{OMAP3ISP_PREV_DRK_FRM_SUBTRACT, PREV_DARK_FRAME_SUBTRACT,
|
|
NULL,
|
|
preview_enable_drkframe},
|
|
{OMAP3ISP_PREV_LENS_SHADING, PREV_LENS_SHADING,
|
|
preview_config_drkf_shadcomp,
|
|
preview_enable_drkframe},
|
|
{OMAP3ISP_PREV_NF, PREV_NOISE_FILTER,
|
|
preview_config_noisefilter,
|
|
preview_enable_noisefilter},
|
|
{OMAP3ISP_PREV_GAMMA, PREV_GAMMA,
|
|
preview_config_gammacorrn,
|
|
NULL},
|
|
{-1, PREV_CONTRAST,
|
|
preview_config_contrast,
|
|
NULL},
|
|
{-1, PREV_BRIGHTNESS,
|
|
preview_config_brightness,
|
|
NULL},
|
|
};
|
|
|
|
/*
|
|
* __preview_get_ptrs - helper function which return pointers to members
|
|
* of params and config structures.
|
|
* @params - pointer to preview_params structure.
|
|
* @param - return pointer to appropriate structure field.
|
|
* @configs - pointer to update config structure.
|
|
* @config - return pointer to appropriate structure field.
|
|
* @bit - for which feature to return pointers.
|
|
* Return size of coresponding prev_params member
|
|
*/
|
|
static u32
|
|
__preview_get_ptrs(struct prev_params *params, void **param,
|
|
struct omap3isp_prev_update_config *configs,
|
|
void __user **config, u32 bit)
|
|
{
|
|
#define CHKARG(cfgs, cfg, field) \
|
|
if (cfgs && cfg) { \
|
|
*(cfg) = (cfgs)->field; \
|
|
}
|
|
|
|
switch (bit) {
|
|
case PREV_HORZ_MEDIAN_FILTER:
|
|
*param = ¶ms->hmed;
|
|
CHKARG(configs, config, hmed)
|
|
return sizeof(params->hmed);
|
|
case PREV_NOISE_FILTER:
|
|
*param = ¶ms->nf;
|
|
CHKARG(configs, config, nf)
|
|
return sizeof(params->nf);
|
|
break;
|
|
case PREV_CFA:
|
|
*param = ¶ms->cfa;
|
|
CHKARG(configs, config, cfa)
|
|
return sizeof(params->cfa);
|
|
case PREV_LUMA_ENHANCE:
|
|
*param = ¶ms->luma;
|
|
CHKARG(configs, config, luma)
|
|
return sizeof(params->luma);
|
|
case PREV_CHROMA_SUPPRESS:
|
|
*param = ¶ms->csup;
|
|
CHKARG(configs, config, csup)
|
|
return sizeof(params->csup);
|
|
case PREV_DEFECT_COR:
|
|
*param = ¶ms->dcor;
|
|
CHKARG(configs, config, dcor)
|
|
return sizeof(params->dcor);
|
|
case PREV_BLKADJ:
|
|
*param = ¶ms->blk_adj;
|
|
CHKARG(configs, config, blkadj)
|
|
return sizeof(params->blk_adj);
|
|
case PREV_YCLIMITS:
|
|
*param = ¶ms->yclimit;
|
|
CHKARG(configs, config, yclimit)
|
|
return sizeof(params->yclimit);
|
|
case PREV_RGB2RGB:
|
|
*param = ¶ms->rgb2rgb;
|
|
CHKARG(configs, config, rgb2rgb)
|
|
return sizeof(params->rgb2rgb);
|
|
case PREV_COLOR_CONV:
|
|
*param = ¶ms->rgb2ycbcr;
|
|
CHKARG(configs, config, csc)
|
|
return sizeof(params->rgb2ycbcr);
|
|
case PREV_WB:
|
|
*param = ¶ms->wbal;
|
|
CHKARG(configs, config, wbal)
|
|
return sizeof(params->wbal);
|
|
case PREV_GAMMA:
|
|
*param = ¶ms->gamma;
|
|
CHKARG(configs, config, gamma)
|
|
return sizeof(params->gamma);
|
|
case PREV_CONTRAST:
|
|
*param = ¶ms->contrast;
|
|
return 0;
|
|
case PREV_BRIGHTNESS:
|
|
*param = ¶ms->brightness;
|
|
return 0;
|
|
default:
|
|
*param = NULL;
|
|
*config = NULL;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* preview_config - Copy and update local structure with userspace preview
|
|
* configuration.
|
|
* @prev: ISP preview engine
|
|
* @cfg: Configuration
|
|
*
|
|
* Return zero if success or -EFAULT if the configuration can't be copied from
|
|
* userspace.
|
|
*/
|
|
static int preview_config(struct isp_prev_device *prev,
|
|
struct omap3isp_prev_update_config *cfg)
|
|
{
|
|
struct prev_params *params;
|
|
struct preview_update *attr;
|
|
int i, bit, rval = 0;
|
|
|
|
params = &prev->params;
|
|
|
|
if (prev->state != ISP_PIPELINE_STREAM_STOPPED) {
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&prev->lock, flags);
|
|
prev->shadow_update = 1;
|
|
spin_unlock_irqrestore(&prev->lock, flags);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(update_attrs); i++) {
|
|
attr = &update_attrs[i];
|
|
bit = 0;
|
|
|
|
if (!(cfg->update & attr->cfg_bit))
|
|
continue;
|
|
|
|
bit = cfg->flag & attr->cfg_bit;
|
|
if (bit) {
|
|
void *to = NULL, __user *from = NULL;
|
|
unsigned long sz = 0;
|
|
|
|
sz = __preview_get_ptrs(params, &to, cfg, &from,
|
|
bit);
|
|
if (to && from && sz) {
|
|
if (copy_from_user(to, from, sz)) {
|
|
rval = -EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
params->features |= attr->feature_bit;
|
|
} else {
|
|
params->features &= ~attr->feature_bit;
|
|
}
|
|
|
|
prev->update |= attr->feature_bit;
|
|
}
|
|
|
|
prev->shadow_update = 0;
|
|
return rval;
|
|
}
|
|
|
|
/*
|
|
* preview_setup_hw - Setup preview registers and/or internal memory
|
|
* @prev: pointer to preview private structure
|
|
* Note: can be called from interrupt context
|
|
* Return none
|
|
*/
|
|
static void preview_setup_hw(struct isp_prev_device *prev)
|
|
{
|
|
struct prev_params *params = &prev->params;
|
|
struct preview_update *attr;
|
|
int i, bit;
|
|
void *param_ptr;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(update_attrs); i++) {
|
|
attr = &update_attrs[i];
|
|
|
|
if (!(prev->update & attr->feature_bit))
|
|
continue;
|
|
bit = params->features & attr->feature_bit;
|
|
if (bit) {
|
|
if (attr->config) {
|
|
__preview_get_ptrs(params, ¶m_ptr, NULL,
|
|
NULL, bit);
|
|
attr->config(prev, param_ptr);
|
|
}
|
|
if (attr->enable)
|
|
attr->enable(prev, 1);
|
|
} else
|
|
if (attr->enable)
|
|
attr->enable(prev, 0);
|
|
|
|
prev->update &= ~attr->feature_bit;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* preview_config_ycpos - Configure byte layout of YUV image.
|
|
* @mode: Indicates the required byte layout.
|
|
*/
|
|
static void
|
|
preview_config_ycpos(struct isp_prev_device *prev,
|
|
enum v4l2_mbus_pixelcode pixelcode)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
enum preview_ycpos_mode mode;
|
|
|
|
switch (pixelcode) {
|
|
case V4L2_MBUS_FMT_YUYV8_1X16:
|
|
mode = YCPOS_CrYCbY;
|
|
break;
|
|
case V4L2_MBUS_FMT_UYVY8_1X16:
|
|
mode = YCPOS_YCrYCb;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_YCPOS_CrYCbY,
|
|
mode << ISPPRV_PCR_YCPOS_SHIFT);
|
|
}
|
|
|
|
/*
|
|
* preview_config_averager - Enable / disable / configure averager
|
|
* @average: Average value to be configured.
|
|
*/
|
|
static void preview_config_averager(struct isp_prev_device *prev, u8 average)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
int reg = 0;
|
|
|
|
if (prev->params.cfa.format == OMAP3ISP_CFAFMT_BAYER)
|
|
reg = ISPPRV_AVE_EVENDIST_2 << ISPPRV_AVE_EVENDIST_SHIFT |
|
|
ISPPRV_AVE_ODDDIST_2 << ISPPRV_AVE_ODDDIST_SHIFT |
|
|
average;
|
|
else if (prev->params.cfa.format == OMAP3ISP_CFAFMT_RGBFOVEON)
|
|
reg = ISPPRV_AVE_EVENDIST_3 << ISPPRV_AVE_EVENDIST_SHIFT |
|
|
ISPPRV_AVE_ODDDIST_3 << ISPPRV_AVE_ODDDIST_SHIFT |
|
|
average;
|
|
isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE);
|
|
}
|
|
|
|
/*
|
|
* preview_config_input_size - Configure the input frame size
|
|
*
|
|
* The preview engine crops several rows and columns internally depending on
|
|
* which processing blocks are enabled. The driver assumes all those blocks are
|
|
* enabled when reporting source pad formats to userspace. If this assumption is
|
|
* not true, rows and columns must be manually cropped at the preview engine
|
|
* input to avoid overflows at the end of lines and frames.
|
|
*/
|
|
static void preview_config_input_size(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
struct prev_params *params = &prev->params;
|
|
struct v4l2_mbus_framefmt *format = &prev->formats[PREV_PAD_SINK];
|
|
unsigned int sph = 0;
|
|
unsigned int eph = format->width - 1;
|
|
unsigned int slv = 0;
|
|
unsigned int elv = format->height - 1;
|
|
|
|
if (prev->input == PREVIEW_INPUT_CCDC) {
|
|
sph += 2;
|
|
eph -= 2;
|
|
}
|
|
|
|
/*
|
|
* Median filter 4 pixels
|
|
* Noise filter 4 pixels, 4 lines
|
|
* or faulty pixels correction
|
|
* CFA filter 4 pixels, 4 lines in Bayer mode
|
|
* 2 lines in other modes
|
|
* Color suppression 2 pixels
|
|
* or luma enhancement
|
|
* -------------------------------------------------------------
|
|
* Maximum total 14 pixels, 8 lines
|
|
*/
|
|
|
|
if (!(params->features & PREV_CFA)) {
|
|
sph += 2;
|
|
eph -= 2;
|
|
slv += 2;
|
|
elv -= 2;
|
|
}
|
|
if (!(params->features & (PREV_DEFECT_COR | PREV_NOISE_FILTER))) {
|
|
sph += 2;
|
|
eph -= 2;
|
|
slv += 2;
|
|
elv -= 2;
|
|
}
|
|
if (!(params->features & PREV_HORZ_MEDIAN_FILTER)) {
|
|
sph += 2;
|
|
eph -= 2;
|
|
}
|
|
if (!(params->features & (PREV_CHROMA_SUPPRESS | PREV_LUMA_ENHANCE)))
|
|
sph += 2;
|
|
|
|
isp_reg_writel(isp, (sph << ISPPRV_HORZ_INFO_SPH_SHIFT) | eph,
|
|
OMAP3_ISP_IOMEM_PREV, ISPPRV_HORZ_INFO);
|
|
isp_reg_writel(isp, (slv << ISPPRV_VERT_INFO_SLV_SHIFT) | elv,
|
|
OMAP3_ISP_IOMEM_PREV, ISPPRV_VERT_INFO);
|
|
}
|
|
|
|
/*
|
|
* preview_config_inlineoffset - Configures the Read address line offset.
|
|
* @prev: Preview module
|
|
* @offset: Line offset
|
|
*
|
|
* According to the TRM, the line offset must be aligned on a 32 bytes boundary.
|
|
* However, a hardware bug requires the memory start address to be aligned on a
|
|
* 64 bytes boundary, so the offset probably should be aligned on 64 bytes as
|
|
* well.
|
|
*/
|
|
static void
|
|
preview_config_inlineoffset(struct isp_prev_device *prev, u32 offset)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV,
|
|
ISPPRV_RADR_OFFSET);
|
|
}
|
|
|
|
/*
|
|
* preview_set_inaddr - Sets memory address of input frame.
|
|
* @addr: 32bit memory address aligned on 32byte boundary.
|
|
*
|
|
* Configures the memory address from which the input frame is to be read.
|
|
*/
|
|
static void preview_set_inaddr(struct isp_prev_device *prev, u32 addr)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_RSDR_ADDR);
|
|
}
|
|
|
|
/*
|
|
* preview_config_outlineoffset - Configures the Write address line offset.
|
|
* @offset: Line Offset for the preview output.
|
|
*
|
|
* The offset must be a multiple of 32 bytes.
|
|
*/
|
|
static void preview_config_outlineoffset(struct isp_prev_device *prev,
|
|
u32 offset)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV,
|
|
ISPPRV_WADD_OFFSET);
|
|
}
|
|
|
|
/*
|
|
* preview_set_outaddr - Sets the memory address to store output frame
|
|
* @addr: 32bit memory address aligned on 32byte boundary.
|
|
*
|
|
* Configures the memory address to which the output frame is written.
|
|
*/
|
|
static void preview_set_outaddr(struct isp_prev_device *prev, u32 addr)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_WSDR_ADDR);
|
|
}
|
|
|
|
static void preview_adjust_bandwidth(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity);
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
const struct v4l2_mbus_framefmt *ifmt = &prev->formats[PREV_PAD_SINK];
|
|
unsigned long l3_ick = pipe->l3_ick;
|
|
struct v4l2_fract *timeperframe;
|
|
unsigned int cycles_per_frame;
|
|
unsigned int requests_per_frame;
|
|
unsigned int cycles_per_request;
|
|
unsigned int minimum;
|
|
unsigned int maximum;
|
|
unsigned int value;
|
|
|
|
if (prev->input != PREVIEW_INPUT_MEMORY) {
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP,
|
|
ISPSBL_SDR_REQ_PRV_EXP_MASK);
|
|
return;
|
|
}
|
|
|
|
/* Compute the minimum number of cycles per request, based on the
|
|
* pipeline maximum data rate. This is an absolute lower bound if we
|
|
* don't want SBL overflows, so round the value up.
|
|
*/
|
|
cycles_per_request = div_u64((u64)l3_ick / 2 * 256 + pipe->max_rate - 1,
|
|
pipe->max_rate);
|
|
minimum = DIV_ROUND_UP(cycles_per_request, 32);
|
|
|
|
/* Compute the maximum number of cycles per request, based on the
|
|
* requested frame rate. This is a soft upper bound to achieve a frame
|
|
* rate equal or higher than the requested value, so round the value
|
|
* down.
|
|
*/
|
|
timeperframe = &pipe->max_timeperframe;
|
|
|
|
requests_per_frame = DIV_ROUND_UP(ifmt->width * 2, 256) * ifmt->height;
|
|
cycles_per_frame = div_u64((u64)l3_ick * timeperframe->numerator,
|
|
timeperframe->denominator);
|
|
cycles_per_request = cycles_per_frame / requests_per_frame;
|
|
|
|
maximum = cycles_per_request / 32;
|
|
|
|
value = max(minimum, maximum);
|
|
|
|
dev_dbg(isp->dev, "%s: cycles per request = %u\n", __func__, value);
|
|
isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP,
|
|
ISPSBL_SDR_REQ_PRV_EXP_MASK,
|
|
value << ISPSBL_SDR_REQ_PRV_EXP_SHIFT);
|
|
}
|
|
|
|
/*
|
|
* omap3isp_preview_busy - Gets busy state of preview module.
|
|
*/
|
|
int omap3isp_preview_busy(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
return isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR)
|
|
& ISPPRV_PCR_BUSY;
|
|
}
|
|
|
|
/*
|
|
* omap3isp_preview_restore_context - Restores the values of preview registers
|
|
*/
|
|
void omap3isp_preview_restore_context(struct isp_device *isp)
|
|
{
|
|
isp->isp_prev.update = PREV_FEATURES_END - 1;
|
|
preview_setup_hw(&isp->isp_prev);
|
|
}
|
|
|
|
/*
|
|
* preview_print_status - Dump preview module registers to the kernel log
|
|
*/
|
|
#define PREV_PRINT_REGISTER(isp, name)\
|
|
dev_dbg(isp->dev, "###PRV " #name "=0x%08x\n", \
|
|
isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_##name))
|
|
|
|
static void preview_print_status(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
dev_dbg(isp->dev, "-------------Preview Register dump----------\n");
|
|
|
|
PREV_PRINT_REGISTER(isp, PCR);
|
|
PREV_PRINT_REGISTER(isp, HORZ_INFO);
|
|
PREV_PRINT_REGISTER(isp, VERT_INFO);
|
|
PREV_PRINT_REGISTER(isp, RSDR_ADDR);
|
|
PREV_PRINT_REGISTER(isp, RADR_OFFSET);
|
|
PREV_PRINT_REGISTER(isp, DSDR_ADDR);
|
|
PREV_PRINT_REGISTER(isp, DRKF_OFFSET);
|
|
PREV_PRINT_REGISTER(isp, WSDR_ADDR);
|
|
PREV_PRINT_REGISTER(isp, WADD_OFFSET);
|
|
PREV_PRINT_REGISTER(isp, AVE);
|
|
PREV_PRINT_REGISTER(isp, HMED);
|
|
PREV_PRINT_REGISTER(isp, NF);
|
|
PREV_PRINT_REGISTER(isp, WB_DGAIN);
|
|
PREV_PRINT_REGISTER(isp, WBGAIN);
|
|
PREV_PRINT_REGISTER(isp, WBSEL);
|
|
PREV_PRINT_REGISTER(isp, CFA);
|
|
PREV_PRINT_REGISTER(isp, BLKADJOFF);
|
|
PREV_PRINT_REGISTER(isp, RGB_MAT1);
|
|
PREV_PRINT_REGISTER(isp, RGB_MAT2);
|
|
PREV_PRINT_REGISTER(isp, RGB_MAT3);
|
|
PREV_PRINT_REGISTER(isp, RGB_MAT4);
|
|
PREV_PRINT_REGISTER(isp, RGB_MAT5);
|
|
PREV_PRINT_REGISTER(isp, RGB_OFF1);
|
|
PREV_PRINT_REGISTER(isp, RGB_OFF2);
|
|
PREV_PRINT_REGISTER(isp, CSC0);
|
|
PREV_PRINT_REGISTER(isp, CSC1);
|
|
PREV_PRINT_REGISTER(isp, CSC2);
|
|
PREV_PRINT_REGISTER(isp, CSC_OFFSET);
|
|
PREV_PRINT_REGISTER(isp, CNT_BRT);
|
|
PREV_PRINT_REGISTER(isp, CSUP);
|
|
PREV_PRINT_REGISTER(isp, SETUP_YC);
|
|
PREV_PRINT_REGISTER(isp, SET_TBL_ADDR);
|
|
PREV_PRINT_REGISTER(isp, CDC_THR0);
|
|
PREV_PRINT_REGISTER(isp, CDC_THR1);
|
|
PREV_PRINT_REGISTER(isp, CDC_THR2);
|
|
PREV_PRINT_REGISTER(isp, CDC_THR3);
|
|
|
|
dev_dbg(isp->dev, "--------------------------------------------\n");
|
|
}
|
|
|
|
/*
|
|
* preview_init_params - init image processing parameters.
|
|
* @prev: pointer to previewer private structure
|
|
* return none
|
|
*/
|
|
static void preview_init_params(struct isp_prev_device *prev)
|
|
{
|
|
struct prev_params *params = &prev->params;
|
|
int i = 0;
|
|
|
|
/* Init values */
|
|
params->contrast = ISPPRV_CONTRAST_DEF * ISPPRV_CONTRAST_UNITS;
|
|
params->brightness = ISPPRV_BRIGHT_DEF * ISPPRV_BRIGHT_UNITS;
|
|
params->average = NO_AVE;
|
|
params->cfa.format = OMAP3ISP_CFAFMT_BAYER;
|
|
memcpy(params->cfa.table, cfa_coef_table,
|
|
sizeof(params->cfa.table));
|
|
params->cfa.gradthrs_horz = FLR_CFA_GRADTHRS_HORZ;
|
|
params->cfa.gradthrs_vert = FLR_CFA_GRADTHRS_VERT;
|
|
params->csup.gain = FLR_CSUP_GAIN;
|
|
params->csup.thres = FLR_CSUP_THRES;
|
|
params->csup.hypf_en = 0;
|
|
memcpy(params->luma.table, luma_enhance_table,
|
|
sizeof(params->luma.table));
|
|
params->nf.spread = FLR_NF_STRGTH;
|
|
memcpy(params->nf.table, noise_filter_table, sizeof(params->nf.table));
|
|
params->dcor.couplet_mode_en = 1;
|
|
for (i = 0; i < OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS; i++)
|
|
params->dcor.detect_correct[i] = DEF_DETECT_CORRECT_VAL;
|
|
memcpy(params->gamma.blue, gamma_table, sizeof(params->gamma.blue));
|
|
memcpy(params->gamma.green, gamma_table, sizeof(params->gamma.green));
|
|
memcpy(params->gamma.red, gamma_table, sizeof(params->gamma.red));
|
|
params->wbal.dgain = FLR_WBAL_DGAIN;
|
|
params->wbal.coef0 = FLR_WBAL_COEF;
|
|
params->wbal.coef1 = FLR_WBAL_COEF;
|
|
params->wbal.coef2 = FLR_WBAL_COEF;
|
|
params->wbal.coef3 = FLR_WBAL_COEF;
|
|
params->blk_adj.red = FLR_BLKADJ_RED;
|
|
params->blk_adj.green = FLR_BLKADJ_GREEN;
|
|
params->blk_adj.blue = FLR_BLKADJ_BLUE;
|
|
params->rgb2rgb = flr_rgb2rgb;
|
|
params->rgb2ycbcr = flr_prev_csc;
|
|
params->yclimit.minC = ISPPRV_YC_MIN;
|
|
params->yclimit.maxC = ISPPRV_YC_MAX;
|
|
params->yclimit.minY = ISPPRV_YC_MIN;
|
|
params->yclimit.maxY = ISPPRV_YC_MAX;
|
|
|
|
params->features = PREV_CFA | PREV_DEFECT_COR | PREV_NOISE_FILTER
|
|
| PREV_GAMMA | PREV_BLKADJ | PREV_YCLIMITS
|
|
| PREV_RGB2RGB | PREV_COLOR_CONV | PREV_WB
|
|
| PREV_BRIGHTNESS | PREV_CONTRAST;
|
|
|
|
prev->update = PREV_FEATURES_END - 1;
|
|
}
|
|
|
|
/*
|
|
* preview_max_out_width - Handle previewer hardware ouput limitations
|
|
* @isp_revision : ISP revision
|
|
* returns maximum width output for current isp revision
|
|
*/
|
|
static unsigned int preview_max_out_width(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
switch (isp->revision) {
|
|
case ISP_REVISION_1_0:
|
|
return ISPPRV_MAXOUTPUT_WIDTH;
|
|
|
|
case ISP_REVISION_2_0:
|
|
default:
|
|
return ISPPRV_MAXOUTPUT_WIDTH_ES2;
|
|
|
|
case ISP_REVISION_15_0:
|
|
return ISPPRV_MAXOUTPUT_WIDTH_3630;
|
|
}
|
|
}
|
|
|
|
static void preview_configure(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
struct v4l2_mbus_framefmt *format;
|
|
unsigned int max_out_width;
|
|
unsigned int format_avg;
|
|
|
|
preview_setup_hw(prev);
|
|
|
|
if (prev->output & PREVIEW_OUTPUT_MEMORY)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_SDRPORT);
|
|
else
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_SDRPORT);
|
|
|
|
if (prev->output & PREVIEW_OUTPUT_RESIZER)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_RSZPORT);
|
|
else
|
|
isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_RSZPORT);
|
|
|
|
/* PREV_PAD_SINK */
|
|
format = &prev->formats[PREV_PAD_SINK];
|
|
|
|
preview_adjust_bandwidth(prev);
|
|
|
|
preview_config_input_size(prev);
|
|
|
|
if (prev->input == PREVIEW_INPUT_CCDC)
|
|
preview_config_inlineoffset(prev, 0);
|
|
else
|
|
preview_config_inlineoffset(prev,
|
|
ALIGN(format->width, 0x20) * 2);
|
|
|
|
/* PREV_PAD_SOURCE */
|
|
format = &prev->formats[PREV_PAD_SOURCE];
|
|
|
|
if (prev->output & PREVIEW_OUTPUT_MEMORY)
|
|
preview_config_outlineoffset(prev,
|
|
ALIGN(format->width, 0x10) * 2);
|
|
|
|
max_out_width = preview_max_out_width(prev);
|
|
|
|
format_avg = fls(DIV_ROUND_UP(format->width, max_out_width) - 1);
|
|
preview_config_averager(prev, format_avg);
|
|
preview_config_ycpos(prev, format->code);
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Interrupt handling
|
|
*/
|
|
|
|
static void preview_enable_oneshot(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
|
|
/* The PCR.SOURCE bit is automatically reset to 0 when the PCR.ENABLE
|
|
* bit is set. As the preview engine is used in single-shot mode, we
|
|
* need to set PCR.SOURCE before enabling the preview engine.
|
|
*/
|
|
if (prev->input == PREVIEW_INPUT_MEMORY)
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_SOURCE);
|
|
|
|
isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
|
|
ISPPRV_PCR_EN | ISPPRV_PCR_ONESHOT);
|
|
}
|
|
|
|
void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev)
|
|
{
|
|
/*
|
|
* If ISP_VIDEO_DMAQUEUE_QUEUED is set, DMA queue had an underrun
|
|
* condition, the module was paused and now we have a buffer queued
|
|
* on the output again. Restart the pipeline if running in continuous
|
|
* mode.
|
|
*/
|
|
if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS &&
|
|
prev->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED) {
|
|
preview_enable_oneshot(prev);
|
|
isp_video_dmaqueue_flags_clr(&prev->video_out);
|
|
}
|
|
}
|
|
|
|
static void preview_isr_buffer(struct isp_prev_device *prev)
|
|
{
|
|
struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity);
|
|
struct isp_buffer *buffer;
|
|
int restart = 0;
|
|
|
|
if (prev->input == PREVIEW_INPUT_MEMORY) {
|
|
buffer = omap3isp_video_buffer_next(&prev->video_in,
|
|
prev->error);
|
|
if (buffer != NULL)
|
|
preview_set_inaddr(prev, buffer->isp_addr);
|
|
pipe->state |= ISP_PIPELINE_IDLE_INPUT;
|
|
}
|
|
|
|
if (prev->output & PREVIEW_OUTPUT_MEMORY) {
|
|
buffer = omap3isp_video_buffer_next(&prev->video_out,
|
|
prev->error);
|
|
if (buffer != NULL) {
|
|
preview_set_outaddr(prev, buffer->isp_addr);
|
|
restart = 1;
|
|
}
|
|
pipe->state |= ISP_PIPELINE_IDLE_OUTPUT;
|
|
}
|
|
|
|
switch (prev->state) {
|
|
case ISP_PIPELINE_STREAM_SINGLESHOT:
|
|
if (isp_pipeline_ready(pipe))
|
|
omap3isp_pipeline_set_stream(pipe,
|
|
ISP_PIPELINE_STREAM_SINGLESHOT);
|
|
break;
|
|
|
|
case ISP_PIPELINE_STREAM_CONTINUOUS:
|
|
/* If an underrun occurs, the video queue operation handler will
|
|
* restart the preview engine. Otherwise restart it immediately.
|
|
*/
|
|
if (restart)
|
|
preview_enable_oneshot(prev);
|
|
break;
|
|
|
|
case ISP_PIPELINE_STREAM_STOPPED:
|
|
default:
|
|
return;
|
|
}
|
|
|
|
prev->error = 0;
|
|
}
|
|
|
|
/*
|
|
* omap3isp_preview_isr - ISP preview engine interrupt handler
|
|
*
|
|
* Manage the preview engine video buffers and configure shadowed registers.
|
|
*/
|
|
void omap3isp_preview_isr(struct isp_prev_device *prev)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (omap3isp_module_sync_is_stopping(&prev->wait, &prev->stopping))
|
|
return;
|
|
|
|
spin_lock_irqsave(&prev->lock, flags);
|
|
if (prev->shadow_update)
|
|
goto done;
|
|
|
|
preview_setup_hw(prev);
|
|
preview_config_input_size(prev);
|
|
|
|
done:
|
|
spin_unlock_irqrestore(&prev->lock, flags);
|
|
|
|
if (prev->input == PREVIEW_INPUT_MEMORY ||
|
|
prev->output & PREVIEW_OUTPUT_MEMORY)
|
|
preview_isr_buffer(prev);
|
|
else if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS)
|
|
preview_enable_oneshot(prev);
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* ISP video operations
|
|
*/
|
|
|
|
static int preview_video_queue(struct isp_video *video,
|
|
struct isp_buffer *buffer)
|
|
{
|
|
struct isp_prev_device *prev = &video->isp->isp_prev;
|
|
|
|
if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
|
|
preview_set_inaddr(prev, buffer->isp_addr);
|
|
|
|
if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
preview_set_outaddr(prev, buffer->isp_addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct isp_video_operations preview_video_ops = {
|
|
.queue = preview_video_queue,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* V4L2 subdev operations
|
|
*/
|
|
|
|
/*
|
|
* preview_s_ctrl - Handle set control subdev method
|
|
* @ctrl: pointer to v4l2 control structure
|
|
*/
|
|
static int preview_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct isp_prev_device *prev =
|
|
container_of(ctrl->handler, struct isp_prev_device, ctrls);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
preview_update_brightness(prev, ctrl->val);
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
preview_update_contrast(prev, ctrl->val);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops preview_ctrl_ops = {
|
|
.s_ctrl = preview_s_ctrl,
|
|
};
|
|
|
|
/*
|
|
* preview_ioctl - Handle preview module private ioctl's
|
|
* @prev: pointer to preview context structure
|
|
* @cmd: configuration command
|
|
* @arg: configuration argument
|
|
* return -EINVAL or zero on success
|
|
*/
|
|
static long preview_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_OMAP3ISP_PRV_CFG:
|
|
return preview_config(prev, arg);
|
|
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* preview_set_stream - Enable/Disable streaming on preview subdev
|
|
* @sd : pointer to v4l2 subdev structure
|
|
* @enable: 1 == Enable, 0 == Disable
|
|
* return -EINVAL or zero on sucess
|
|
*/
|
|
static int preview_set_stream(struct v4l2_subdev *sd, int enable)
|
|
{
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
struct isp_video *video_out = &prev->video_out;
|
|
struct isp_device *isp = to_isp_device(prev);
|
|
struct device *dev = to_device(prev);
|
|
unsigned long flags;
|
|
|
|
if (prev->state == ISP_PIPELINE_STREAM_STOPPED) {
|
|
if (enable == ISP_PIPELINE_STREAM_STOPPED)
|
|
return 0;
|
|
|
|
omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_PREVIEW);
|
|
preview_configure(prev);
|
|
atomic_set(&prev->stopping, 0);
|
|
prev->error = 0;
|
|
preview_print_status(prev);
|
|
}
|
|
|
|
switch (enable) {
|
|
case ISP_PIPELINE_STREAM_CONTINUOUS:
|
|
if (prev->output & PREVIEW_OUTPUT_MEMORY)
|
|
omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE);
|
|
|
|
if (video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED ||
|
|
!(prev->output & PREVIEW_OUTPUT_MEMORY))
|
|
preview_enable_oneshot(prev);
|
|
|
|
isp_video_dmaqueue_flags_clr(video_out);
|
|
break;
|
|
|
|
case ISP_PIPELINE_STREAM_SINGLESHOT:
|
|
if (prev->input == PREVIEW_INPUT_MEMORY)
|
|
omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_READ);
|
|
if (prev->output & PREVIEW_OUTPUT_MEMORY)
|
|
omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE);
|
|
|
|
preview_enable_oneshot(prev);
|
|
break;
|
|
|
|
case ISP_PIPELINE_STREAM_STOPPED:
|
|
if (omap3isp_module_sync_idle(&sd->entity, &prev->wait,
|
|
&prev->stopping))
|
|
dev_dbg(dev, "%s: stop timeout.\n", sd->name);
|
|
spin_lock_irqsave(&prev->lock, flags);
|
|
omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_READ);
|
|
omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE);
|
|
omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_PREVIEW);
|
|
spin_unlock_irqrestore(&prev->lock, flags);
|
|
isp_video_dmaqueue_flags_clr(video_out);
|
|
break;
|
|
}
|
|
|
|
prev->state = enable;
|
|
return 0;
|
|
}
|
|
|
|
static struct v4l2_mbus_framefmt *
|
|
__preview_get_format(struct isp_prev_device *prev, struct v4l2_subdev_fh *fh,
|
|
unsigned int pad, enum v4l2_subdev_format_whence which)
|
|
{
|
|
if (which == V4L2_SUBDEV_FORMAT_TRY)
|
|
return v4l2_subdev_get_try_format(fh, pad);
|
|
else
|
|
return &prev->formats[pad];
|
|
}
|
|
|
|
/* previewer format descriptions */
|
|
static const unsigned int preview_input_fmts[] = {
|
|
V4L2_MBUS_FMT_SGRBG10_1X10,
|
|
V4L2_MBUS_FMT_SRGGB10_1X10,
|
|
V4L2_MBUS_FMT_SBGGR10_1X10,
|
|
V4L2_MBUS_FMT_SGBRG10_1X10,
|
|
};
|
|
|
|
static const unsigned int preview_output_fmts[] = {
|
|
V4L2_MBUS_FMT_UYVY8_1X16,
|
|
V4L2_MBUS_FMT_YUYV8_1X16,
|
|
};
|
|
|
|
/*
|
|
* preview_try_format - Handle try format by pad subdev method
|
|
* @prev: ISP preview device
|
|
* @fh : V4L2 subdev file handle
|
|
* @pad: pad num
|
|
* @fmt: pointer to v4l2 format structure
|
|
*/
|
|
static void preview_try_format(struct isp_prev_device *prev,
|
|
struct v4l2_subdev_fh *fh, unsigned int pad,
|
|
struct v4l2_mbus_framefmt *fmt,
|
|
enum v4l2_subdev_format_whence which)
|
|
{
|
|
struct v4l2_mbus_framefmt *format;
|
|
unsigned int max_out_width;
|
|
enum v4l2_mbus_pixelcode pixelcode;
|
|
unsigned int i;
|
|
|
|
max_out_width = preview_max_out_width(prev);
|
|
|
|
switch (pad) {
|
|
case PREV_PAD_SINK:
|
|
/* When reading data from the CCDC, the input size has already
|
|
* been mangled by the CCDC output pad so it can be accepted
|
|
* as-is.
|
|
*
|
|
* When reading data from memory, clamp the requested width and
|
|
* height. The TRM doesn't specify a minimum input height, make
|
|
* sure we got enough lines to enable the noise filter and color
|
|
* filter array interpolation.
|
|
*/
|
|
if (prev->input == PREVIEW_INPUT_MEMORY) {
|
|
fmt->width = clamp_t(u32, fmt->width, PREV_MIN_WIDTH,
|
|
max_out_width * 8);
|
|
fmt->height = clamp_t(u32, fmt->height, PREV_MIN_HEIGHT,
|
|
PREV_MAX_HEIGHT);
|
|
}
|
|
|
|
fmt->colorspace = V4L2_COLORSPACE_SRGB;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(preview_input_fmts); i++) {
|
|
if (fmt->code == preview_input_fmts[i])
|
|
break;
|
|
}
|
|
|
|
/* If not found, use SGRBG10 as default */
|
|
if (i >= ARRAY_SIZE(preview_input_fmts))
|
|
fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10;
|
|
break;
|
|
|
|
case PREV_PAD_SOURCE:
|
|
pixelcode = fmt->code;
|
|
format = __preview_get_format(prev, fh, PREV_PAD_SINK, which);
|
|
memcpy(fmt, format, sizeof(*fmt));
|
|
|
|
/* The preview module output size is configurable through the
|
|
* input interface (horizontal and vertical cropping) and the
|
|
* averager (horizontal scaling by 1/1, 1/2, 1/4 or 1/8). In
|
|
* spite of this, hardcode the output size to the biggest
|
|
* possible value for simplicity reasons.
|
|
*/
|
|
switch (pixelcode) {
|
|
case V4L2_MBUS_FMT_YUYV8_1X16:
|
|
case V4L2_MBUS_FMT_UYVY8_1X16:
|
|
fmt->code = pixelcode;
|
|
break;
|
|
|
|
default:
|
|
fmt->code = V4L2_MBUS_FMT_YUYV8_1X16;
|
|
break;
|
|
}
|
|
|
|
/* The TRM states (12.1.4.7.1.2) that 2 pixels must be cropped
|
|
* from the left and right sides when the input source is the
|
|
* CCDC. This seems not to be needed in practice, investigation
|
|
* is required.
|
|
*/
|
|
if (prev->input == PREVIEW_INPUT_CCDC)
|
|
fmt->width -= 4;
|
|
|
|
/* The preview module can output a maximum of 3312 pixels
|
|
* horizontally due to fixed memory-line sizes. Compute the
|
|
* horizontal averaging factor accordingly. Note that the limit
|
|
* applies to the noise filter and CFA interpolation blocks, so
|
|
* it doesn't take cropping by further blocks into account.
|
|
*
|
|
* ES 1.0 hardware revision is limited to 1280 pixels
|
|
* horizontally.
|
|
*/
|
|
fmt->width >>= fls(DIV_ROUND_UP(fmt->width, max_out_width) - 1);
|
|
|
|
/* Assume that all blocks are enabled and crop pixels and lines
|
|
* accordingly. See preview_config_input_size() for more
|
|
* information.
|
|
*/
|
|
fmt->width -= 14;
|
|
fmt->height -= 8;
|
|
|
|
fmt->colorspace = V4L2_COLORSPACE_JPEG;
|
|
break;
|
|
}
|
|
|
|
fmt->field = V4L2_FIELD_NONE;
|
|
}
|
|
|
|
/*
|
|
* preview_enum_mbus_code - Handle pixel format enumeration
|
|
* @sd : pointer to v4l2 subdev structure
|
|
* @fh : V4L2 subdev file handle
|
|
* @code : pointer to v4l2_subdev_mbus_code_enum structure
|
|
* return -EINVAL or zero on success
|
|
*/
|
|
static int preview_enum_mbus_code(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_mbus_code_enum *code)
|
|
{
|
|
switch (code->pad) {
|
|
case PREV_PAD_SINK:
|
|
if (code->index >= ARRAY_SIZE(preview_input_fmts))
|
|
return -EINVAL;
|
|
|
|
code->code = preview_input_fmts[code->index];
|
|
break;
|
|
case PREV_PAD_SOURCE:
|
|
if (code->index >= ARRAY_SIZE(preview_output_fmts))
|
|
return -EINVAL;
|
|
|
|
code->code = preview_output_fmts[code->index];
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int preview_enum_frame_size(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_frame_size_enum *fse)
|
|
{
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
struct v4l2_mbus_framefmt format;
|
|
|
|
if (fse->index != 0)
|
|
return -EINVAL;
|
|
|
|
format.code = fse->code;
|
|
format.width = 1;
|
|
format.height = 1;
|
|
preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
|
|
fse->min_width = format.width;
|
|
fse->min_height = format.height;
|
|
|
|
if (format.code != fse->code)
|
|
return -EINVAL;
|
|
|
|
format.code = fse->code;
|
|
format.width = -1;
|
|
format.height = -1;
|
|
preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
|
|
fse->max_width = format.width;
|
|
fse->max_height = format.height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* preview_get_format - Handle get format by pads subdev method
|
|
* @sd : pointer to v4l2 subdev structure
|
|
* @fh : V4L2 subdev file handle
|
|
* @fmt: pointer to v4l2 subdev format structure
|
|
* return -EINVAL or zero on sucess
|
|
*/
|
|
static int preview_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
struct v4l2_mbus_framefmt *format;
|
|
|
|
format = __preview_get_format(prev, fh, fmt->pad, fmt->which);
|
|
if (format == NULL)
|
|
return -EINVAL;
|
|
|
|
fmt->format = *format;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* preview_set_format - Handle set format by pads subdev method
|
|
* @sd : pointer to v4l2 subdev structure
|
|
* @fh : V4L2 subdev file handle
|
|
* @fmt: pointer to v4l2 subdev format structure
|
|
* return -EINVAL or zero on success
|
|
*/
|
|
static int preview_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
struct v4l2_mbus_framefmt *format;
|
|
|
|
format = __preview_get_format(prev, fh, fmt->pad, fmt->which);
|
|
if (format == NULL)
|
|
return -EINVAL;
|
|
|
|
preview_try_format(prev, fh, fmt->pad, &fmt->format, fmt->which);
|
|
*format = fmt->format;
|
|
|
|
/* Propagate the format from sink to source */
|
|
if (fmt->pad == PREV_PAD_SINK) {
|
|
format = __preview_get_format(prev, fh, PREV_PAD_SOURCE,
|
|
fmt->which);
|
|
*format = fmt->format;
|
|
preview_try_format(prev, fh, PREV_PAD_SOURCE, format,
|
|
fmt->which);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* preview_init_formats - Initialize formats on all pads
|
|
* @sd: ISP preview V4L2 subdevice
|
|
* @fh: V4L2 subdev file handle
|
|
*
|
|
* Initialize all pad formats with default values. If fh is not NULL, try
|
|
* formats are initialized on the file handle. Otherwise active formats are
|
|
* initialized on the device.
|
|
*/
|
|
static int preview_init_formats(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh)
|
|
{
|
|
struct v4l2_subdev_format format;
|
|
|
|
memset(&format, 0, sizeof(format));
|
|
format.pad = PREV_PAD_SINK;
|
|
format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
|
|
format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10;
|
|
format.format.width = 4096;
|
|
format.format.height = 4096;
|
|
preview_set_format(sd, fh, &format);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* subdev core operations */
|
|
static const struct v4l2_subdev_core_ops preview_v4l2_core_ops = {
|
|
.ioctl = preview_ioctl,
|
|
};
|
|
|
|
/* subdev video operations */
|
|
static const struct v4l2_subdev_video_ops preview_v4l2_video_ops = {
|
|
.s_stream = preview_set_stream,
|
|
};
|
|
|
|
/* subdev pad operations */
|
|
static const struct v4l2_subdev_pad_ops preview_v4l2_pad_ops = {
|
|
.enum_mbus_code = preview_enum_mbus_code,
|
|
.enum_frame_size = preview_enum_frame_size,
|
|
.get_fmt = preview_get_format,
|
|
.set_fmt = preview_set_format,
|
|
};
|
|
|
|
/* subdev operations */
|
|
static const struct v4l2_subdev_ops preview_v4l2_ops = {
|
|
.core = &preview_v4l2_core_ops,
|
|
.video = &preview_v4l2_video_ops,
|
|
.pad = &preview_v4l2_pad_ops,
|
|
};
|
|
|
|
/* subdev internal operations */
|
|
static const struct v4l2_subdev_internal_ops preview_v4l2_internal_ops = {
|
|
.open = preview_init_formats,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Media entity operations
|
|
*/
|
|
|
|
/*
|
|
* preview_link_setup - Setup previewer connections.
|
|
* @entity : Pointer to media entity structure
|
|
* @local : Pointer to local pad array
|
|
* @remote : Pointer to remote pad array
|
|
* @flags : Link flags
|
|
* return -EINVAL or zero on success
|
|
*/
|
|
static int preview_link_setup(struct media_entity *entity,
|
|
const struct media_pad *local,
|
|
const struct media_pad *remote, u32 flags)
|
|
{
|
|
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
|
|
struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
|
|
|
|
switch (local->index | media_entity_type(remote->entity)) {
|
|
case PREV_PAD_SINK | MEDIA_ENT_T_DEVNODE:
|
|
/* read from memory */
|
|
if (flags & MEDIA_LNK_FL_ENABLED) {
|
|
if (prev->input == PREVIEW_INPUT_CCDC)
|
|
return -EBUSY;
|
|
prev->input = PREVIEW_INPUT_MEMORY;
|
|
} else {
|
|
if (prev->input == PREVIEW_INPUT_MEMORY)
|
|
prev->input = PREVIEW_INPUT_NONE;
|
|
}
|
|
break;
|
|
|
|
case PREV_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
|
|
/* read from ccdc */
|
|
if (flags & MEDIA_LNK_FL_ENABLED) {
|
|
if (prev->input == PREVIEW_INPUT_MEMORY)
|
|
return -EBUSY;
|
|
prev->input = PREVIEW_INPUT_CCDC;
|
|
} else {
|
|
if (prev->input == PREVIEW_INPUT_CCDC)
|
|
prev->input = PREVIEW_INPUT_NONE;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* The ISP core doesn't support pipelines with multiple video outputs.
|
|
* Revisit this when it will be implemented, and return -EBUSY for now.
|
|
*/
|
|
|
|
case PREV_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
|
|
/* write to memory */
|
|
if (flags & MEDIA_LNK_FL_ENABLED) {
|
|
if (prev->output & ~PREVIEW_OUTPUT_MEMORY)
|
|
return -EBUSY;
|
|
prev->output |= PREVIEW_OUTPUT_MEMORY;
|
|
} else {
|
|
prev->output &= ~PREVIEW_OUTPUT_MEMORY;
|
|
}
|
|
break;
|
|
|
|
case PREV_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
|
|
/* write to resizer */
|
|
if (flags & MEDIA_LNK_FL_ENABLED) {
|
|
if (prev->output & ~PREVIEW_OUTPUT_RESIZER)
|
|
return -EBUSY;
|
|
prev->output |= PREVIEW_OUTPUT_RESIZER;
|
|
} else {
|
|
prev->output &= ~PREVIEW_OUTPUT_RESIZER;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* media operations */
|
|
static const struct media_entity_operations preview_media_ops = {
|
|
.link_setup = preview_link_setup,
|
|
};
|
|
|
|
/*
|
|
* review_init_entities - Initialize subdev and media entity.
|
|
* @prev : Pointer to preview structure
|
|
* return -ENOMEM or zero on success
|
|
*/
|
|
static int preview_init_entities(struct isp_prev_device *prev)
|
|
{
|
|
struct v4l2_subdev *sd = &prev->subdev;
|
|
struct media_pad *pads = prev->pads;
|
|
struct media_entity *me = &sd->entity;
|
|
int ret;
|
|
|
|
prev->input = PREVIEW_INPUT_NONE;
|
|
|
|
v4l2_subdev_init(sd, &preview_v4l2_ops);
|
|
sd->internal_ops = &preview_v4l2_internal_ops;
|
|
strlcpy(sd->name, "OMAP3 ISP preview", sizeof(sd->name));
|
|
sd->grp_id = 1 << 16; /* group ID for isp subdevs */
|
|
v4l2_set_subdevdata(sd, prev);
|
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
|
|
|
v4l2_ctrl_handler_init(&prev->ctrls, 2);
|
|
v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_BRIGHTNESS,
|
|
ISPPRV_BRIGHT_LOW, ISPPRV_BRIGHT_HIGH,
|
|
ISPPRV_BRIGHT_STEP, ISPPRV_BRIGHT_DEF);
|
|
v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_CONTRAST,
|
|
ISPPRV_CONTRAST_LOW, ISPPRV_CONTRAST_HIGH,
|
|
ISPPRV_CONTRAST_STEP, ISPPRV_CONTRAST_DEF);
|
|
v4l2_ctrl_handler_setup(&prev->ctrls);
|
|
sd->ctrl_handler = &prev->ctrls;
|
|
|
|
pads[PREV_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
|
|
pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
|
|
|
|
me->ops = &preview_media_ops;
|
|
ret = media_entity_init(me, PREV_PADS_NUM, pads, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
preview_init_formats(sd, NULL);
|
|
|
|
/* According to the OMAP34xx TRM, video buffers need to be aligned on a
|
|
* 32 bytes boundary. However, an undocumented hardware bug requires a
|
|
* 64 bytes boundary at the preview engine input.
|
|
*/
|
|
prev->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
|
prev->video_in.ops = &preview_video_ops;
|
|
prev->video_in.isp = to_isp_device(prev);
|
|
prev->video_in.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3;
|
|
prev->video_in.bpl_alignment = 64;
|
|
prev->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
prev->video_out.ops = &preview_video_ops;
|
|
prev->video_out.isp = to_isp_device(prev);
|
|
prev->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3;
|
|
prev->video_out.bpl_alignment = 32;
|
|
|
|
ret = omap3isp_video_init(&prev->video_in, "preview");
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = omap3isp_video_init(&prev->video_out, "preview");
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Connect the video nodes to the previewer subdev. */
|
|
ret = media_entity_create_link(&prev->video_in.video.entity, 0,
|
|
&prev->subdev.entity, PREV_PAD_SINK, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = media_entity_create_link(&prev->subdev.entity, PREV_PAD_SOURCE,
|
|
&prev->video_out.video.entity, 0, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void omap3isp_preview_unregister_entities(struct isp_prev_device *prev)
|
|
{
|
|
media_entity_cleanup(&prev->subdev.entity);
|
|
|
|
v4l2_device_unregister_subdev(&prev->subdev);
|
|
v4l2_ctrl_handler_free(&prev->ctrls);
|
|
omap3isp_video_unregister(&prev->video_in);
|
|
omap3isp_video_unregister(&prev->video_out);
|
|
}
|
|
|
|
int omap3isp_preview_register_entities(struct isp_prev_device *prev,
|
|
struct v4l2_device *vdev)
|
|
{
|
|
int ret;
|
|
|
|
/* Register the subdev and video nodes. */
|
|
ret = v4l2_device_register_subdev(vdev, &prev->subdev);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = omap3isp_video_register(&prev->video_in, vdev);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = omap3isp_video_register(&prev->video_out, vdev);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
omap3isp_preview_unregister_entities(prev);
|
|
return ret;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* ISP previewer initialisation and cleanup
|
|
*/
|
|
|
|
void omap3isp_preview_cleanup(struct isp_device *isp)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* isp_preview_init - Previewer initialization.
|
|
* @dev : Pointer to ISP device
|
|
* return -ENOMEM or zero on success
|
|
*/
|
|
int omap3isp_preview_init(struct isp_device *isp)
|
|
{
|
|
struct isp_prev_device *prev = &isp->isp_prev;
|
|
int ret;
|
|
|
|
spin_lock_init(&prev->lock);
|
|
init_waitqueue_head(&prev->wait);
|
|
preview_init_params(prev);
|
|
|
|
ret = preview_init_entities(prev);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
out:
|
|
if (ret)
|
|
omap3isp_preview_cleanup(isp);
|
|
|
|
return ret;
|
|
}
|