forked from Minki/linux
6f45b1b9f7
Signed-off-by: Dror Cohen <dror@liveu.tv> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2445 lines
63 KiB
C
2445 lines
63 KiB
C
/*
|
|
* Copyright (C) 2009 Texas Instruments Inc
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* TODO : add support for VBI & HBI data service
|
|
* add static buffer allocation
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/string.h>
|
|
#include <linux/videodev2.h>
|
|
#include <linux/wait.h>
|
|
#include <linux/time.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/slab.h>
|
|
#include <media/v4l2-device.h>
|
|
#include <media/v4l2-ioctl.h>
|
|
#include <media/v4l2-chip-ident.h>
|
|
|
|
#include "vpif_capture.h"
|
|
#include "vpif.h"
|
|
|
|
MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(VPIF_CAPTURE_VERSION);
|
|
|
|
#define vpif_err(fmt, arg...) v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg)
|
|
#define vpif_dbg(level, debug, fmt, arg...) \
|
|
v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)
|
|
|
|
static int debug = 1;
|
|
static u32 ch0_numbuffers = 3;
|
|
static u32 ch1_numbuffers = 3;
|
|
static u32 ch0_bufsize = 1920 * 1080 * 2;
|
|
static u32 ch1_bufsize = 720 * 576 * 2;
|
|
|
|
module_param(debug, int, 0644);
|
|
module_param(ch0_numbuffers, uint, S_IRUGO);
|
|
module_param(ch1_numbuffers, uint, S_IRUGO);
|
|
module_param(ch0_bufsize, uint, S_IRUGO);
|
|
module_param(ch1_bufsize, uint, S_IRUGO);
|
|
|
|
MODULE_PARM_DESC(debug, "Debug level 0-1");
|
|
MODULE_PARM_DESC(ch2_numbuffers, "Channel0 buffer count (default:3)");
|
|
MODULE_PARM_DESC(ch3_numbuffers, "Channel1 buffer count (default:3)");
|
|
MODULE_PARM_DESC(ch2_bufsize, "Channel0 buffer size (default:1920 x 1080 x 2)");
|
|
MODULE_PARM_DESC(ch3_bufsize, "Channel1 buffer size (default:720 x 576 x 2)");
|
|
|
|
static struct vpif_config_params config_params = {
|
|
.min_numbuffers = 3,
|
|
.numbuffers[0] = 3,
|
|
.numbuffers[1] = 3,
|
|
.min_bufsize[0] = 720 * 480 * 2,
|
|
.min_bufsize[1] = 720 * 480 * 2,
|
|
.channel_bufsize[0] = 1920 * 1080 * 2,
|
|
.channel_bufsize[1] = 720 * 576 * 2,
|
|
};
|
|
|
|
/* global variables */
|
|
static struct vpif_device vpif_obj = { {NULL} };
|
|
static struct device *vpif_dev;
|
|
static void vpif_calculate_offsets(struct channel_obj *ch);
|
|
static void vpif_config_addr(struct channel_obj *ch, int muxmode);
|
|
|
|
/**
|
|
* buffer_prepare : callback function for buffer prepare
|
|
* @vb: ptr to vb2_buffer
|
|
*
|
|
* This is the callback function for buffer prepare when vb2_qbuf()
|
|
* function is called. The buffer is prepared and user space virtual address
|
|
* or user address is converted into physical address
|
|
*/
|
|
static int vpif_buffer_prepare(struct vb2_buffer *vb)
|
|
{
|
|
/* Get the file handle object and channel object */
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct vb2_queue *q = vb->vb2_queue;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
unsigned long addr;
|
|
|
|
vpif_dbg(2, debug, "vpif_buffer_prepare\n");
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
if (vb->state != VB2_BUF_STATE_ACTIVE &&
|
|
vb->state != VB2_BUF_STATE_PREPARED) {
|
|
vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
|
|
if (vb2_plane_vaddr(vb, 0) &&
|
|
vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
|
|
goto exit;
|
|
addr = vb2_dma_contig_plane_dma_addr(vb, 0);
|
|
|
|
if (q->streaming) {
|
|
if (!IS_ALIGNED((addr + common->ytop_off), 8) ||
|
|
!IS_ALIGNED((addr + common->ybtm_off), 8) ||
|
|
!IS_ALIGNED((addr + common->ctop_off), 8) ||
|
|
!IS_ALIGNED((addr + common->cbtm_off), 8))
|
|
goto exit;
|
|
}
|
|
}
|
|
return 0;
|
|
exit:
|
|
vpif_dbg(1, debug, "buffer_prepare:offset is not aligned to 8 bytes\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* vpif_buffer_queue_setup : Callback function for buffer setup.
|
|
* @vq: vb2_queue ptr
|
|
* @fmt: v4l2 format
|
|
* @nbuffers: ptr to number of buffers requested by application
|
|
* @nplanes:: contains number of distinct video planes needed to hold a frame
|
|
* @sizes[]: contains the size (in bytes) of each plane.
|
|
* @alloc_ctxs: ptr to allocation context
|
|
*
|
|
* This callback function is called when reqbuf() is called to adjust
|
|
* the buffer count and buffer size
|
|
*/
|
|
static int vpif_buffer_queue_setup(struct vb2_queue *vq,
|
|
const struct v4l2_format *fmt,
|
|
unsigned int *nbuffers, unsigned int *nplanes,
|
|
unsigned int sizes[], void *alloc_ctxs[])
|
|
{
|
|
/* Get the file handle object and channel object */
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vq);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
unsigned long size;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
vpif_dbg(2, debug, "vpif_buffer_setup\n");
|
|
|
|
/* If memory type is not mmap, return */
|
|
if (V4L2_MEMORY_MMAP == common->memory) {
|
|
/* Calculate the size of the buffer */
|
|
size = config_params.channel_bufsize[ch->channel_id];
|
|
/*
|
|
* Checking if the buffer size exceeds the available buffer
|
|
* ycmux_mode = 0 means 1 channel mode HD and
|
|
* ycmux_mode = 1 means 2 channels mode SD
|
|
*/
|
|
if (ch->vpifparams.std_info.ycmux_mode == 0) {
|
|
if (config_params.video_limit[ch->channel_id])
|
|
while (size * *nbuffers >
|
|
(config_params.video_limit[0]
|
|
+ config_params.video_limit[1]))
|
|
(*nbuffers)--;
|
|
} else {
|
|
if (config_params.video_limit[ch->channel_id])
|
|
while (size * *nbuffers >
|
|
config_params.video_limit[ch->channel_id])
|
|
(*nbuffers)--;
|
|
}
|
|
|
|
} else {
|
|
size = common->fmt.fmt.pix.sizeimage;
|
|
}
|
|
|
|
if (*nbuffers < config_params.min_numbuffers)
|
|
*nbuffers = config_params.min_numbuffers;
|
|
|
|
*nplanes = 1;
|
|
sizes[0] = size;
|
|
alloc_ctxs[0] = common->alloc_ctx;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_buffer_queue : Callback function to add buffer to DMA queue
|
|
* @vb: ptr to vb2_buffer
|
|
*/
|
|
static void vpif_buffer_queue(struct vb2_buffer *vb)
|
|
{
|
|
/* Get the file handle object and channel object */
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct vpif_cap_buffer *buf = container_of(vb,
|
|
struct vpif_cap_buffer, vb);
|
|
struct common_obj *common;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
vpif_dbg(2, debug, "vpif_buffer_queue\n");
|
|
|
|
/* add the buffer to the DMA queue */
|
|
list_add_tail(&buf->list, &common->dma_queue);
|
|
}
|
|
|
|
/**
|
|
* vpif_buf_cleanup : Callback function to free buffer
|
|
* @vb: ptr to vb2_buffer
|
|
*
|
|
* This function is called from the videobuf2 layer to free memory
|
|
* allocated to the buffers
|
|
*/
|
|
static void vpif_buf_cleanup(struct vb2_buffer *vb)
|
|
{
|
|
/* Get the file handle object and channel object */
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct vpif_cap_buffer *buf = container_of(vb,
|
|
struct vpif_cap_buffer, vb);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
unsigned long flags;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
spin_lock_irqsave(&common->irqlock, flags);
|
|
if (vb->state == VB2_BUF_STATE_ACTIVE)
|
|
list_del_init(&buf->list);
|
|
spin_unlock_irqrestore(&common->irqlock, flags);
|
|
|
|
}
|
|
|
|
static void vpif_wait_prepare(struct vb2_queue *vq)
|
|
{
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vq);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
mutex_unlock(&common->lock);
|
|
}
|
|
|
|
static void vpif_wait_finish(struct vb2_queue *vq)
|
|
{
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vq);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
mutex_lock(&common->lock);
|
|
}
|
|
|
|
static int vpif_buffer_init(struct vb2_buffer *vb)
|
|
{
|
|
struct vpif_cap_buffer *buf = container_of(vb,
|
|
struct vpif_cap_buffer, vb);
|
|
|
|
INIT_LIST_HEAD(&buf->list);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] =
|
|
{ {1, 1} };
|
|
|
|
static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
|
|
{
|
|
struct vpif_capture_config *vpif_config_data =
|
|
vpif_dev->platform_data;
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vq);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct vpif_params *vpif = &ch->vpifparams;
|
|
unsigned long addr = 0;
|
|
int ret;
|
|
|
|
/* If buffer queue is empty, return error */
|
|
if (list_empty(&common->dma_queue)) {
|
|
vpif_dbg(1, debug, "buffer queue is empty\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* Get the next frame from the buffer queue */
|
|
common->cur_frm = common->next_frm = list_entry(common->dma_queue.next,
|
|
struct vpif_cap_buffer, list);
|
|
/* Remove buffer from the buffer queue */
|
|
list_del(&common->cur_frm->list);
|
|
/* Mark state of the current frame to active */
|
|
common->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE;
|
|
/* Initialize field_id and started member */
|
|
ch->field_id = 0;
|
|
common->started = 1;
|
|
addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0);
|
|
|
|
/* Calculate the offset for Y and C data in the buffer */
|
|
vpif_calculate_offsets(ch);
|
|
|
|
if ((vpif->std_info.frm_fmt &&
|
|
((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) &&
|
|
(common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) ||
|
|
(!vpif->std_info.frm_fmt &&
|
|
(common->fmt.fmt.pix.field == V4L2_FIELD_NONE))) {
|
|
vpif_dbg(1, debug, "conflict in field format and std format\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* configure 1 or 2 channel mode */
|
|
ret = vpif_config_data->setup_input_channel_mode
|
|
(vpif->std_info.ycmux_mode);
|
|
|
|
if (ret < 0) {
|
|
vpif_dbg(1, debug, "can't set vpif channel mode\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Call vpif_set_params function to set the parameters and addresses */
|
|
ret = vpif_set_video_params(vpif, ch->channel_id);
|
|
|
|
if (ret < 0) {
|
|
vpif_dbg(1, debug, "can't set video params\n");
|
|
return ret;
|
|
}
|
|
|
|
common->started = ret;
|
|
vpif_config_addr(ch, ret);
|
|
|
|
common->set_addr(addr + common->ytop_off,
|
|
addr + common->ybtm_off,
|
|
addr + common->ctop_off,
|
|
addr + common->cbtm_off);
|
|
|
|
/**
|
|
* Set interrupt for both the fields in VPIF Register enable channel in
|
|
* VPIF register
|
|
*/
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)) {
|
|
channel0_intr_assert();
|
|
channel0_intr_enable(1);
|
|
enable_channel0(1);
|
|
}
|
|
if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
|
|
(common->started == 2)) {
|
|
channel1_intr_assert();
|
|
channel1_intr_enable(1);
|
|
enable_channel1(1);
|
|
}
|
|
channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* abort streaming and wait for last buffer */
|
|
static int vpif_stop_streaming(struct vb2_queue *vq)
|
|
{
|
|
struct vpif_fh *fh = vb2_get_drv_priv(vq);
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
|
|
if (!vb2_is_streaming(vq))
|
|
return 0;
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
/* release all active buffers */
|
|
while (!list_empty(&common->dma_queue)) {
|
|
common->next_frm = list_entry(common->dma_queue.next,
|
|
struct vpif_cap_buffer, list);
|
|
list_del(&common->next_frm->list);
|
|
vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct vb2_ops video_qops = {
|
|
.queue_setup = vpif_buffer_queue_setup,
|
|
.wait_prepare = vpif_wait_prepare,
|
|
.wait_finish = vpif_wait_finish,
|
|
.buf_init = vpif_buffer_init,
|
|
.buf_prepare = vpif_buffer_prepare,
|
|
.start_streaming = vpif_start_streaming,
|
|
.stop_streaming = vpif_stop_streaming,
|
|
.buf_cleanup = vpif_buf_cleanup,
|
|
.buf_queue = vpif_buffer_queue,
|
|
};
|
|
|
|
/**
|
|
* vpif_process_buffer_complete: process a completed buffer
|
|
* @common: ptr to common channel object
|
|
*
|
|
* This function time stamp the buffer and mark it as DONE. It also
|
|
* wake up any process waiting on the QUEUE and set the next buffer
|
|
* as current
|
|
*/
|
|
static void vpif_process_buffer_complete(struct common_obj *common)
|
|
{
|
|
do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp);
|
|
vb2_buffer_done(&common->cur_frm->vb,
|
|
VB2_BUF_STATE_DONE);
|
|
/* Make curFrm pointing to nextFrm */
|
|
common->cur_frm = common->next_frm;
|
|
}
|
|
|
|
/**
|
|
* vpif_schedule_next_buffer: set next buffer address for capture
|
|
* @common : ptr to common channel object
|
|
*
|
|
* This function will get next buffer from the dma queue and
|
|
* set the buffer address in the vpif register for capture.
|
|
* the buffer is marked active
|
|
*/
|
|
static void vpif_schedule_next_buffer(struct common_obj *common)
|
|
{
|
|
unsigned long addr = 0;
|
|
|
|
common->next_frm = list_entry(common->dma_queue.next,
|
|
struct vpif_cap_buffer, list);
|
|
/* Remove that buffer from the buffer queue */
|
|
list_del(&common->next_frm->list);
|
|
common->next_frm->vb.state = VB2_BUF_STATE_ACTIVE;
|
|
addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0);
|
|
|
|
/* Set top and bottom field addresses in VPIF registers */
|
|
common->set_addr(addr + common->ytop_off,
|
|
addr + common->ybtm_off,
|
|
addr + common->ctop_off,
|
|
addr + common->cbtm_off);
|
|
}
|
|
|
|
/**
|
|
* vpif_channel_isr : ISR handler for vpif capture
|
|
* @irq: irq number
|
|
* @dev_id: dev_id ptr
|
|
*
|
|
* It changes status of the captured buffer, takes next buffer from the queue
|
|
* and sets its address in VPIF registers
|
|
*/
|
|
static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
|
|
{
|
|
struct vpif_device *dev = &vpif_obj;
|
|
struct common_obj *common;
|
|
struct channel_obj *ch;
|
|
enum v4l2_field field;
|
|
int channel_id = 0;
|
|
int fid = -1, i;
|
|
|
|
channel_id = *(int *)(dev_id);
|
|
if (!vpif_intr_status(channel_id))
|
|
return IRQ_NONE;
|
|
|
|
ch = dev->dev[channel_id];
|
|
|
|
field = ch->common[VPIF_VIDEO_INDEX].fmt.fmt.pix.field;
|
|
|
|
for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
|
|
common = &ch->common[i];
|
|
/* skip If streaming is not started in this channel */
|
|
if (0 == common->started)
|
|
continue;
|
|
|
|
/* Check the field format */
|
|
if (1 == ch->vpifparams.std_info.frm_fmt) {
|
|
/* Progressive mode */
|
|
if (list_empty(&common->dma_queue))
|
|
continue;
|
|
|
|
if (!channel_first_int[i][channel_id])
|
|
vpif_process_buffer_complete(common);
|
|
|
|
channel_first_int[i][channel_id] = 0;
|
|
|
|
vpif_schedule_next_buffer(common);
|
|
|
|
|
|
channel_first_int[i][channel_id] = 0;
|
|
} else {
|
|
/**
|
|
* Interlaced mode. If it is first interrupt, ignore
|
|
* it
|
|
*/
|
|
if (channel_first_int[i][channel_id]) {
|
|
channel_first_int[i][channel_id] = 0;
|
|
continue;
|
|
}
|
|
if (0 == i) {
|
|
ch->field_id ^= 1;
|
|
/* Get field id from VPIF registers */
|
|
fid = vpif_channel_getfid(ch->channel_id);
|
|
if (fid != ch->field_id) {
|
|
/**
|
|
* If field id does not match stored
|
|
* field id, make them in sync
|
|
*/
|
|
if (0 == fid)
|
|
ch->field_id = fid;
|
|
return IRQ_HANDLED;
|
|
}
|
|
}
|
|
/* device field id and local field id are in sync */
|
|
if (0 == fid) {
|
|
/* this is even field */
|
|
if (common->cur_frm == common->next_frm)
|
|
continue;
|
|
|
|
/* mark the current buffer as done */
|
|
vpif_process_buffer_complete(common);
|
|
} else if (1 == fid) {
|
|
/* odd field */
|
|
if (list_empty(&common->dma_queue) ||
|
|
(common->cur_frm != common->next_frm))
|
|
continue;
|
|
|
|
vpif_schedule_next_buffer(common);
|
|
}
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* vpif_update_std_info() - update standard related info
|
|
* @ch: ptr to channel object
|
|
*
|
|
* For a given standard selected by application, update values
|
|
* in the device data structures
|
|
*/
|
|
static int vpif_update_std_info(struct channel_obj *ch)
|
|
{
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct vpif_params *vpifparams = &ch->vpifparams;
|
|
const struct vpif_channel_config_params *config;
|
|
struct vpif_channel_config_params *std_info = &vpifparams->std_info;
|
|
struct video_obj *vid_ch = &ch->video;
|
|
int index;
|
|
|
|
vpif_dbg(2, debug, "vpif_update_std_info\n");
|
|
|
|
for (index = 0; index < vpif_ch_params_count; index++) {
|
|
config = &ch_params[index];
|
|
if (config->hd_sd == 0) {
|
|
vpif_dbg(2, debug, "SD format\n");
|
|
if (config->stdid & vid_ch->stdid) {
|
|
memcpy(std_info, config, sizeof(*config));
|
|
break;
|
|
}
|
|
} else {
|
|
vpif_dbg(2, debug, "HD format\n");
|
|
if (config->dv_preset == vid_ch->dv_preset) {
|
|
memcpy(std_info, config, sizeof(*config));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* standard not found */
|
|
if (index == vpif_ch_params_count)
|
|
return -EINVAL;
|
|
|
|
common->fmt.fmt.pix.width = std_info->width;
|
|
common->width = std_info->width;
|
|
common->fmt.fmt.pix.height = std_info->height;
|
|
common->height = std_info->height;
|
|
common->fmt.fmt.pix.bytesperline = std_info->width;
|
|
vpifparams->video_params.hpitch = std_info->width;
|
|
vpifparams->video_params.storage_mode = std_info->frm_fmt;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_calculate_offsets : This function calculates buffers offsets
|
|
* @ch : ptr to channel object
|
|
*
|
|
* This function calculates buffer offsets for Y and C in the top and
|
|
* bottom field
|
|
*/
|
|
static void vpif_calculate_offsets(struct channel_obj *ch)
|
|
{
|
|
unsigned int hpitch, vpitch, sizeimage;
|
|
struct video_obj *vid_ch = &(ch->video);
|
|
struct vpif_params *vpifparams = &ch->vpifparams;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
enum v4l2_field field = common->fmt.fmt.pix.field;
|
|
|
|
vpif_dbg(2, debug, "vpif_calculate_offsets\n");
|
|
|
|
if (V4L2_FIELD_ANY == field) {
|
|
if (vpifparams->std_info.frm_fmt)
|
|
vid_ch->buf_field = V4L2_FIELD_NONE;
|
|
else
|
|
vid_ch->buf_field = V4L2_FIELD_INTERLACED;
|
|
} else
|
|
vid_ch->buf_field = common->fmt.fmt.pix.field;
|
|
|
|
sizeimage = common->fmt.fmt.pix.sizeimage;
|
|
|
|
hpitch = common->fmt.fmt.pix.bytesperline;
|
|
vpitch = sizeimage / (hpitch * 2);
|
|
|
|
if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
|
|
(V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
|
|
/* Calculate offsets for Y top, Y Bottom, C top and C Bottom */
|
|
common->ytop_off = 0;
|
|
common->ybtm_off = hpitch;
|
|
common->ctop_off = sizeimage / 2;
|
|
common->cbtm_off = sizeimage / 2 + hpitch;
|
|
} else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) {
|
|
/* Calculate offsets for Y top, Y Bottom, C top and C Bottom */
|
|
common->ytop_off = 0;
|
|
common->ybtm_off = sizeimage / 4;
|
|
common->ctop_off = sizeimage / 2;
|
|
common->cbtm_off = common->ctop_off + sizeimage / 4;
|
|
} else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) {
|
|
/* Calculate offsets for Y top, Y Bottom, C top and C Bottom */
|
|
common->ybtm_off = 0;
|
|
common->ytop_off = sizeimage / 4;
|
|
common->cbtm_off = sizeimage / 2;
|
|
common->ctop_off = common->cbtm_off + sizeimage / 4;
|
|
}
|
|
if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
|
|
(V4L2_FIELD_INTERLACED == vid_ch->buf_field))
|
|
vpifparams->video_params.storage_mode = 1;
|
|
else
|
|
vpifparams->video_params.storage_mode = 0;
|
|
|
|
if (1 == vpifparams->std_info.frm_fmt)
|
|
vpifparams->video_params.hpitch =
|
|
common->fmt.fmt.pix.bytesperline;
|
|
else {
|
|
if ((field == V4L2_FIELD_ANY)
|
|
|| (field == V4L2_FIELD_INTERLACED))
|
|
vpifparams->video_params.hpitch =
|
|
common->fmt.fmt.pix.bytesperline * 2;
|
|
else
|
|
vpifparams->video_params.hpitch =
|
|
common->fmt.fmt.pix.bytesperline;
|
|
}
|
|
|
|
ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid;
|
|
}
|
|
|
|
/**
|
|
* vpif_config_format: configure default frame format in the device
|
|
* ch : ptr to channel object
|
|
*/
|
|
static void vpif_config_format(struct channel_obj *ch)
|
|
{
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
vpif_dbg(2, debug, "vpif_config_format\n");
|
|
|
|
common->fmt.fmt.pix.field = V4L2_FIELD_ANY;
|
|
if (config_params.numbuffers[ch->channel_id] == 0)
|
|
common->memory = V4L2_MEMORY_USERPTR;
|
|
else
|
|
common->memory = V4L2_MEMORY_MMAP;
|
|
|
|
common->fmt.fmt.pix.sizeimage
|
|
= config_params.channel_bufsize[ch->channel_id];
|
|
|
|
if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER)
|
|
common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8;
|
|
else
|
|
common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
|
|
common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
}
|
|
|
|
/**
|
|
* vpif_get_default_field() - Get default field type based on interface
|
|
* @vpif_params - ptr to vpif params
|
|
*/
|
|
static inline enum v4l2_field vpif_get_default_field(
|
|
struct vpif_interface *iface)
|
|
{
|
|
return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE :
|
|
V4L2_FIELD_INTERLACED;
|
|
}
|
|
|
|
/**
|
|
* vpif_check_format() - check given pixel format for compatibility
|
|
* @ch - channel ptr
|
|
* @pixfmt - Given pixel format
|
|
* @update - update the values as per hardware requirement
|
|
*
|
|
* Check the application pixel format for S_FMT and update the input
|
|
* values as per hardware limits for TRY_FMT. The default pixel and
|
|
* field format is selected based on interface type.
|
|
*/
|
|
static int vpif_check_format(struct channel_obj *ch,
|
|
struct v4l2_pix_format *pixfmt,
|
|
int update)
|
|
{
|
|
struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
|
|
struct vpif_params *vpif_params = &ch->vpifparams;
|
|
enum v4l2_field field = pixfmt->field;
|
|
u32 sizeimage, hpitch, vpitch;
|
|
int ret = -EINVAL;
|
|
|
|
vpif_dbg(2, debug, "vpif_check_format\n");
|
|
/**
|
|
* first check for the pixel format. If if_type is Raw bayer,
|
|
* only V4L2_PIX_FMT_SBGGR8 format is supported. Otherwise only
|
|
* V4L2_PIX_FMT_YUV422P is supported
|
|
*/
|
|
if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) {
|
|
if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "invalid pix format\n");
|
|
goto exit;
|
|
}
|
|
pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
|
|
}
|
|
} else {
|
|
if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "invalid pixel format\n");
|
|
goto exit;
|
|
}
|
|
pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P;
|
|
}
|
|
}
|
|
|
|
if (!(VPIF_VALID_FIELD(field))) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "invalid field format\n");
|
|
goto exit;
|
|
}
|
|
/**
|
|
* By default use FIELD_NONE for RAW Bayer capture
|
|
* and FIELD_INTERLACED for other interfaces
|
|
*/
|
|
field = vpif_get_default_field(&vpif_params->iface);
|
|
} else if (field == V4L2_FIELD_ANY)
|
|
/* unsupported field. Use default */
|
|
field = vpif_get_default_field(&vpif_params->iface);
|
|
|
|
/* validate the hpitch */
|
|
hpitch = pixfmt->bytesperline;
|
|
if (hpitch < vpif_params->std_info.width) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "invalid hpitch\n");
|
|
goto exit;
|
|
}
|
|
hpitch = vpif_params->std_info.width;
|
|
}
|
|
|
|
sizeimage = pixfmt->sizeimage;
|
|
|
|
vpitch = sizeimage / (hpitch * 2);
|
|
|
|
/* validate the vpitch */
|
|
if (vpitch < vpif_params->std_info.height) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "Invalid vpitch\n");
|
|
goto exit;
|
|
}
|
|
vpitch = vpif_params->std_info.height;
|
|
}
|
|
|
|
/* Check for 8 byte alignment */
|
|
if (!ALIGN(hpitch, 8)) {
|
|
if (!update) {
|
|
vpif_dbg(2, debug, "invalid pitch alignment\n");
|
|
goto exit;
|
|
}
|
|
/* adjust to next 8 byte boundary */
|
|
hpitch = (((hpitch + 7) / 8) * 8);
|
|
}
|
|
/* if update is set, modify the bytesperline and sizeimage */
|
|
if (update) {
|
|
pixfmt->bytesperline = hpitch;
|
|
pixfmt->sizeimage = hpitch * vpitch * 2;
|
|
}
|
|
/**
|
|
* Image width and height is always based on current standard width and
|
|
* height
|
|
*/
|
|
pixfmt->width = common->fmt.fmt.pix.width;
|
|
pixfmt->height = common->fmt.fmt.pix.height;
|
|
return 0;
|
|
exit:
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vpif_config_addr() - function to configure buffer address in vpif
|
|
* @ch - channel ptr
|
|
* @muxmode - channel mux mode
|
|
*/
|
|
static void vpif_config_addr(struct channel_obj *ch, int muxmode)
|
|
{
|
|
struct common_obj *common;
|
|
|
|
vpif_dbg(2, debug, "vpif_config_addr\n");
|
|
|
|
common = &(ch->common[VPIF_VIDEO_INDEX]);
|
|
|
|
if (VPIF_CHANNEL1_VIDEO == ch->channel_id)
|
|
common->set_addr = ch1_set_videobuf_addr;
|
|
else if (2 == muxmode)
|
|
common->set_addr = ch0_set_videobuf_addr_yc_nmux;
|
|
else
|
|
common->set_addr = ch0_set_videobuf_addr;
|
|
}
|
|
|
|
/**
|
|
* vpif_mmap : It is used to map kernel space buffers into user spaces
|
|
* @filep: file pointer
|
|
* @vma: ptr to vm_area_struct
|
|
*/
|
|
static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
|
|
{
|
|
/* Get the channel object and file handle object */
|
|
struct vpif_fh *fh = filep->private_data;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
|
|
|
|
vpif_dbg(2, debug, "vpif_mmap\n");
|
|
|
|
return vb2_mmap(&common->buffer_queue, vma);
|
|
}
|
|
|
|
/**
|
|
* vpif_poll: It is used for select/poll system call
|
|
* @filep: file pointer
|
|
* @wait: poll table to wait
|
|
*/
|
|
static unsigned int vpif_poll(struct file *filep, poll_table * wait)
|
|
{
|
|
struct vpif_fh *fh = filep->private_data;
|
|
struct channel_obj *channel = fh->channel;
|
|
struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]);
|
|
|
|
vpif_dbg(2, debug, "vpif_poll\n");
|
|
|
|
if (common->started)
|
|
return vb2_poll(&common->buffer_queue, filep, wait);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_open : vpif open handler
|
|
* @filep: file ptr
|
|
*
|
|
* It creates object of file handle structure and stores it in private_data
|
|
* member of filepointer
|
|
*/
|
|
static int vpif_open(struct file *filep)
|
|
{
|
|
struct vpif_capture_config *config = vpif_dev->platform_data;
|
|
struct video_device *vdev = video_devdata(filep);
|
|
struct common_obj *common;
|
|
struct video_obj *vid_ch;
|
|
struct channel_obj *ch;
|
|
struct vpif_fh *fh;
|
|
int i;
|
|
|
|
vpif_dbg(2, debug, "vpif_open\n");
|
|
|
|
ch = video_get_drvdata(vdev);
|
|
|
|
vid_ch = &ch->video;
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
if (NULL == ch->curr_subdev_info) {
|
|
/**
|
|
* search through the sub device to see a registered
|
|
* sub device and make it as current sub device
|
|
*/
|
|
for (i = 0; i < config->subdev_count; i++) {
|
|
if (vpif_obj.sd[i]) {
|
|
/* the sub device is registered */
|
|
ch->curr_subdev_info = &config->subdev_info[i];
|
|
/* make first input as the current input */
|
|
vid_ch->input_idx = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (i == config->subdev_count) {
|
|
vpif_err("No sub device registered\n");
|
|
return -ENOENT;
|
|
}
|
|
}
|
|
|
|
/* Allocate memory for the file handle object */
|
|
fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL);
|
|
if (NULL == fh) {
|
|
vpif_err("unable to allocate memory for file handle object\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* store pointer to fh in private_data member of filep */
|
|
filep->private_data = fh;
|
|
fh->channel = ch;
|
|
fh->initialized = 0;
|
|
/* If decoder is not initialized. initialize it */
|
|
if (!ch->initialized) {
|
|
fh->initialized = 1;
|
|
ch->initialized = 1;
|
|
memset(&(ch->vpifparams), 0, sizeof(struct vpif_params));
|
|
}
|
|
/* Increment channel usrs counter */
|
|
ch->usrs++;
|
|
/* Set io_allowed member to false */
|
|
fh->io_allowed[VPIF_VIDEO_INDEX] = 0;
|
|
/* Initialize priority of this instance to default priority */
|
|
fh->prio = V4L2_PRIORITY_UNSET;
|
|
v4l2_prio_open(&ch->prio, &fh->prio);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_release : function to clean up file close
|
|
* @filep: file pointer
|
|
*
|
|
* This function deletes buffer queue, frees the buffers and the vpif file
|
|
* handle
|
|
*/
|
|
static int vpif_release(struct file *filep)
|
|
{
|
|
struct vpif_fh *fh = filep->private_data;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
|
|
vpif_dbg(2, debug, "vpif_release\n");
|
|
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
/* if this instance is doing IO */
|
|
if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
|
|
/* Reset io_usrs member of channel object */
|
|
common->io_usrs = 0;
|
|
/* Disable channel as per its device type and channel id */
|
|
if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
|
|
enable_channel0(0);
|
|
channel0_intr_enable(0);
|
|
}
|
|
if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
|
|
(2 == common->started)) {
|
|
enable_channel1(0);
|
|
channel1_intr_enable(0);
|
|
}
|
|
common->started = 0;
|
|
/* Free buffers allocated */
|
|
vb2_queue_release(&common->buffer_queue);
|
|
vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
|
|
}
|
|
|
|
/* Decrement channel usrs counter */
|
|
ch->usrs--;
|
|
|
|
/* Close the priority */
|
|
v4l2_prio_close(&ch->prio, fh->prio);
|
|
|
|
if (fh->initialized)
|
|
ch->initialized = 0;
|
|
|
|
filep->private_data = NULL;
|
|
kfree(fh);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_reqbufs() - request buffer handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @reqbuf: request buffer structure ptr
|
|
*/
|
|
static int vpif_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *reqbuf)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common;
|
|
u8 index = 0;
|
|
struct vb2_queue *q;
|
|
|
|
vpif_dbg(2, debug, "vpif_reqbufs\n");
|
|
|
|
/**
|
|
* This file handle has not initialized the channel,
|
|
* It is not allowed to do settings
|
|
*/
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id)
|
|
|| (VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
|
|
if (!fh->initialized) {
|
|
vpif_dbg(1, debug, "Channel Busy\n");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev)
|
|
return -EINVAL;
|
|
|
|
index = VPIF_VIDEO_INDEX;
|
|
|
|
common = &ch->common[index];
|
|
|
|
if (0 != common->io_usrs)
|
|
return -EBUSY;
|
|
|
|
/* Initialize videobuf2 queue as per the buffer type */
|
|
common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
|
|
if (!common->alloc_ctx) {
|
|
vpif_err("Failed to get the context\n");
|
|
return -EINVAL;
|
|
}
|
|
q = &common->buffer_queue;
|
|
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
q->io_modes = VB2_MMAP | VB2_USERPTR;
|
|
q->drv_priv = fh;
|
|
q->ops = &video_qops;
|
|
q->mem_ops = &vb2_dma_contig_memops;
|
|
q->buf_struct_size = sizeof(struct vpif_cap_buffer);
|
|
|
|
vb2_queue_init(q);
|
|
|
|
/* Set io allowed member of file handle to TRUE */
|
|
fh->io_allowed[index] = 1;
|
|
/* Increment io usrs member of channel object to 1 */
|
|
common->io_usrs = 1;
|
|
/* Store type of memory requested in channel object */
|
|
common->memory = reqbuf->memory;
|
|
INIT_LIST_HEAD(&common->dma_queue);
|
|
|
|
/* Allocate buffers */
|
|
return vb2_reqbufs(&common->buffer_queue, reqbuf);
|
|
}
|
|
|
|
/**
|
|
* vpif_querybuf() - query buffer handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @buf: v4l2 buffer structure ptr
|
|
*/
|
|
static int vpif_querybuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *buf)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
vpif_dbg(2, debug, "vpif_querybuf\n");
|
|
|
|
if (common->fmt.type != buf->type)
|
|
return -EINVAL;
|
|
|
|
if (common->memory != V4L2_MEMORY_MMAP) {
|
|
vpif_dbg(1, debug, "Invalid memory\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return vb2_querybuf(&common->buffer_queue, buf);
|
|
}
|
|
|
|
/**
|
|
* vpif_qbuf() - query buffer handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @buf: v4l2 buffer structure ptr
|
|
*/
|
|
static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
|
|
{
|
|
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct v4l2_buffer tbuf = *buf;
|
|
|
|
vpif_dbg(2, debug, "vpif_qbuf\n");
|
|
|
|
if (common->fmt.type != tbuf.type) {
|
|
vpif_err("invalid buffer type\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
|
|
vpif_err("fh io not allowed\n");
|
|
return -EACCES;
|
|
}
|
|
|
|
return vb2_qbuf(&common->buffer_queue, buf);
|
|
}
|
|
|
|
/**
|
|
* vpif_dqbuf() - query buffer handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @buf: v4l2 buffer structure ptr
|
|
*/
|
|
static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
vpif_dbg(2, debug, "vpif_dqbuf\n");
|
|
|
|
return vb2_dqbuf(&common->buffer_queue, buf,
|
|
(file->f_flags & O_NONBLOCK));
|
|
}
|
|
|
|
/**
|
|
* vpif_streamon() - streamon handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @buftype: v4l2 buffer type
|
|
*/
|
|
static int vpif_streamon(struct file *file, void *priv,
|
|
enum v4l2_buf_type buftype)
|
|
{
|
|
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id];
|
|
struct vpif_params *vpif;
|
|
int ret = 0;
|
|
|
|
vpif_dbg(2, debug, "vpif_streamon\n");
|
|
|
|
vpif = &ch->vpifparams;
|
|
|
|
if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
vpif_dbg(1, debug, "buffer type not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* If file handle is not allowed IO, return error */
|
|
if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
|
|
vpif_dbg(1, debug, "io not allowed\n");
|
|
return -EACCES;
|
|
}
|
|
|
|
/* If Streaming is already started, return error */
|
|
if (common->started) {
|
|
vpif_dbg(1, debug, "channel->started\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((ch->channel_id == VPIF_CHANNEL0_VIDEO &&
|
|
oth_ch->common[VPIF_VIDEO_INDEX].started &&
|
|
vpif->std_info.ycmux_mode == 0) ||
|
|
((ch->channel_id == VPIF_CHANNEL1_VIDEO) &&
|
|
(2 == oth_ch->common[VPIF_VIDEO_INDEX].started))) {
|
|
vpif_dbg(1, debug, "other channel is being used\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
ret = vpif_check_format(ch, &common->fmt.fmt.pix, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Enable streamon on the sub device */
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], video,
|
|
s_stream, 1);
|
|
|
|
if (ret && (ret != -ENOIOCTLCMD)) {
|
|
vpif_dbg(1, debug, "stream on failed in subdev\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Call vb2_streamon to start streaming in videobuf2 */
|
|
ret = vb2_streamon(&common->buffer_queue, buftype);
|
|
if (ret) {
|
|
vpif_dbg(1, debug, "vb2_streamon\n");
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vpif_streamoff() - streamoff handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @buftype: v4l2 buffer type
|
|
*/
|
|
static int vpif_streamoff(struct file *file, void *priv,
|
|
enum v4l2_buf_type buftype)
|
|
{
|
|
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
int ret;
|
|
|
|
vpif_dbg(2, debug, "vpif_streamoff\n");
|
|
|
|
if (buftype != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
vpif_dbg(1, debug, "buffer type not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* If io is allowed for this file handle, return error */
|
|
if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
|
|
vpif_dbg(1, debug, "io not allowed\n");
|
|
return -EACCES;
|
|
}
|
|
|
|
/* If streaming is not started, return error */
|
|
if (!common->started) {
|
|
vpif_dbg(1, debug, "channel->started\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* disable channel */
|
|
if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
|
|
enable_channel0(0);
|
|
channel0_intr_enable(0);
|
|
} else {
|
|
enable_channel1(0);
|
|
channel1_intr_enable(0);
|
|
}
|
|
|
|
common->started = 0;
|
|
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], video,
|
|
s_stream, 0);
|
|
|
|
if (ret && (ret != -ENOIOCTLCMD))
|
|
vpif_dbg(1, debug, "stream off failed in subdev\n");
|
|
|
|
return vb2_streamoff(&common->buffer_queue, buftype);
|
|
}
|
|
|
|
/**
|
|
* vpif_map_sub_device_to_input() - Maps sub device to input
|
|
* @ch - ptr to channel
|
|
* @config - ptr to capture configuration
|
|
* @input_index - Given input index from application
|
|
* @sub_device_index - index into sd table
|
|
*
|
|
* lookup the sub device information for a given input index.
|
|
* we report all the inputs to application. inputs table also
|
|
* has sub device name for the each input
|
|
*/
|
|
static struct vpif_subdev_info *vpif_map_sub_device_to_input(
|
|
struct channel_obj *ch,
|
|
struct vpif_capture_config *vpif_cfg,
|
|
int input_index,
|
|
int *sub_device_index)
|
|
{
|
|
struct vpif_capture_chan_config *chan_cfg;
|
|
struct vpif_subdev_info *subdev_info = NULL;
|
|
const char *subdev_name = NULL;
|
|
int i;
|
|
|
|
vpif_dbg(2, debug, "vpif_map_sub_device_to_input\n");
|
|
|
|
chan_cfg = &vpif_cfg->chan_config[ch->channel_id];
|
|
|
|
/**
|
|
* search through the inputs to find the sub device supporting
|
|
* the input
|
|
*/
|
|
for (i = 0; i < chan_cfg->input_count; i++) {
|
|
/* For each sub device, loop through input */
|
|
if (i == input_index) {
|
|
subdev_name = chan_cfg->inputs[i].subdev_name;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* if reached maximum. return null */
|
|
if (i == chan_cfg->input_count || (NULL == subdev_name))
|
|
return subdev_info;
|
|
|
|
/* loop through the sub device list to get the sub device info */
|
|
for (i = 0; i < vpif_cfg->subdev_count; i++) {
|
|
subdev_info = &vpif_cfg->subdev_info[i];
|
|
if (!strcmp(subdev_info->name, subdev_name))
|
|
break;
|
|
}
|
|
|
|
if (i == vpif_cfg->subdev_count)
|
|
return subdev_info;
|
|
|
|
/* check if the sub device is registered */
|
|
if (NULL == vpif_obj.sd[i])
|
|
return NULL;
|
|
|
|
*sub_device_index = i;
|
|
return subdev_info;
|
|
}
|
|
|
|
/**
|
|
* vpif_querystd() - querystd handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @std_id: ptr to std id
|
|
*
|
|
* This function is called to detect standard at the selected input
|
|
*/
|
|
static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
int ret = 0;
|
|
|
|
vpif_dbg(2, debug, "vpif_querystd\n");
|
|
|
|
/* Call querystd function of decoder device */
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], video,
|
|
querystd, std_id);
|
|
if (ret < 0)
|
|
vpif_dbg(1, debug, "Failed to set standard for sub devices\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vpif_g_std() - get STD handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @std_id: ptr to std id
|
|
*/
|
|
static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
vpif_dbg(2, debug, "vpif_g_std\n");
|
|
|
|
*std = ch->video.stdid;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_s_std() - set STD handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @std_id: ptr to std id
|
|
*/
|
|
static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
int ret = 0;
|
|
|
|
vpif_dbg(2, debug, "vpif_s_std\n");
|
|
|
|
if (common->started) {
|
|
vpif_err("streaming in progress\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
|
|
(VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
|
|
if (!fh->initialized) {
|
|
vpif_dbg(1, debug, "Channel Busy\n");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
ret = v4l2_prio_check(&ch->prio, fh->prio);
|
|
if (0 != ret)
|
|
return ret;
|
|
|
|
fh->initialized = 1;
|
|
|
|
/* Call encoder subdevice function to set the standard */
|
|
ch->video.stdid = *std_id;
|
|
ch->video.dv_preset = V4L2_DV_INVALID;
|
|
memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings));
|
|
|
|
/* Get the information about the standard */
|
|
if (vpif_update_std_info(ch)) {
|
|
vpif_err("Error getting the standard info\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Configure the default format information */
|
|
vpif_config_format(ch);
|
|
|
|
/* set standard in the sub device */
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], core,
|
|
s_std, *std_id);
|
|
if (ret < 0)
|
|
vpif_dbg(1, debug, "Failed to set standard for sub devices\n");
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vpif_enum_input() - ENUMINPUT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @input: ptr to input structure
|
|
*/
|
|
static int vpif_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *input)
|
|
{
|
|
|
|
struct vpif_capture_config *config = vpif_dev->platform_data;
|
|
struct vpif_capture_chan_config *chan_cfg;
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
chan_cfg = &config->chan_config[ch->channel_id];
|
|
|
|
if (input->index >= chan_cfg->input_count) {
|
|
vpif_dbg(1, debug, "Invalid input index\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
memcpy(input, &chan_cfg->inputs[input->index].input,
|
|
sizeof(*input));
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_g_input() - Get INPUT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @index: ptr to input index
|
|
*/
|
|
static int vpif_g_input(struct file *file, void *priv, unsigned int *index)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct video_obj *vid_ch = &ch->video;
|
|
|
|
*index = vid_ch->input_idx;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_s_input() - Set INPUT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @index: input index
|
|
*/
|
|
static int vpif_s_input(struct file *file, void *priv, unsigned int index)
|
|
{
|
|
struct vpif_capture_config *config = vpif_dev->platform_data;
|
|
struct vpif_capture_chan_config *chan_cfg;
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct video_obj *vid_ch = &ch->video;
|
|
struct vpif_subdev_info *subdev_info;
|
|
int ret = 0, sd_index = 0;
|
|
u32 input = 0, output = 0;
|
|
|
|
chan_cfg = &config->chan_config[ch->channel_id];
|
|
|
|
if (common->started) {
|
|
vpif_err("Streaming in progress\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
|
|
(VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
|
|
if (!fh->initialized) {
|
|
vpif_dbg(1, debug, "Channel Busy\n");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
ret = v4l2_prio_check(&ch->prio, fh->prio);
|
|
if (0 != ret)
|
|
return ret;
|
|
|
|
fh->initialized = 1;
|
|
subdev_info = vpif_map_sub_device_to_input(ch, config, index,
|
|
&sd_index);
|
|
if (NULL == subdev_info) {
|
|
vpif_dbg(1, debug,
|
|
"couldn't lookup sub device for the input index\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* first setup input path from sub device to vpif */
|
|
if (config->setup_input_path) {
|
|
ret = config->setup_input_path(ch->channel_id,
|
|
subdev_info->name);
|
|
if (ret < 0) {
|
|
vpif_dbg(1, debug, "couldn't setup input path for the"
|
|
" sub device %s, for input index %d\n",
|
|
subdev_info->name, index);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (subdev_info->can_route) {
|
|
input = subdev_info->input;
|
|
output = subdev_info->output;
|
|
ret = v4l2_subdev_call(vpif_obj.sd[sd_index], video, s_routing,
|
|
input, output, 0);
|
|
if (ret < 0) {
|
|
vpif_dbg(1, debug, "Failed to set input\n");
|
|
return ret;
|
|
}
|
|
}
|
|
vid_ch->input_idx = index;
|
|
ch->curr_subdev_info = subdev_info;
|
|
ch->curr_sd_index = sd_index;
|
|
/* copy interface parameters to vpif */
|
|
ch->vpifparams.iface = subdev_info->vpif_if;
|
|
|
|
/* update tvnorms from the sub device input info */
|
|
ch->video_dev->tvnorms = chan_cfg->inputs[index].input.std;
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vpif_enum_fmt_vid_cap() - ENUM_FMT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @index: input index
|
|
*/
|
|
static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *fmt)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
if (fmt->index != 0) {
|
|
vpif_dbg(1, debug, "Invalid format index\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Fill in the information about format */
|
|
if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) {
|
|
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb");
|
|
fmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
|
|
} else {
|
|
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
strcpy(fmt->description, "YCbCr4:2:2 YC Planar");
|
|
fmt->pixelformat = V4L2_PIX_FMT_YUV422P;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_try_fmt_vid_cap() - TRY_FMT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @fmt: ptr to v4l2 format structure
|
|
*/
|
|
static int vpif_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
|
|
|
|
return vpif_check_format(ch, pixfmt, 1);
|
|
}
|
|
|
|
|
|
/**
|
|
* vpif_g_fmt_vid_cap() - Set INPUT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @fmt: ptr to v4l2 format structure
|
|
*/
|
|
static int vpif_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
/* Check the validity of the buffer type */
|
|
if (common->fmt.type != fmt->type)
|
|
return -EINVAL;
|
|
|
|
/* Fill in the information about format */
|
|
*fmt = common->fmt;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_s_fmt_vid_cap() - Set FMT handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @fmt: ptr to v4l2 format structure
|
|
*/
|
|
static int vpif_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
struct v4l2_pix_format *pixfmt;
|
|
int ret = 0;
|
|
|
|
vpif_dbg(2, debug, "%s\n", __func__);
|
|
|
|
/* If streaming is started, return error */
|
|
if (common->started) {
|
|
vpif_dbg(1, debug, "Streaming is started\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
|
|
(VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
|
|
if (!fh->initialized) {
|
|
vpif_dbg(1, debug, "Channel Busy\n");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
ret = v4l2_prio_check(&ch->prio, fh->prio);
|
|
if (0 != ret)
|
|
return ret;
|
|
|
|
fh->initialized = 1;
|
|
|
|
pixfmt = &fmt->fmt.pix;
|
|
/* Check for valid field format */
|
|
ret = vpif_check_format(ch, pixfmt, 0);
|
|
|
|
if (ret)
|
|
return ret;
|
|
/* store the format in the channel object */
|
|
common->fmt = *fmt;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_querycap() - QUERYCAP handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @cap: ptr to v4l2_capability structure
|
|
*/
|
|
static int vpif_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct vpif_capture_config *config = vpif_dev->platform_data;
|
|
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
|
|
strlcpy(cap->driver, "vpif capture", sizeof(cap->driver));
|
|
strlcpy(cap->bus_info, "VPIF Platform", sizeof(cap->bus_info));
|
|
strlcpy(cap->card, config->card_name, sizeof(cap->card));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_g_priority() - get priority handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @prio: ptr to v4l2_priority structure
|
|
*/
|
|
static int vpif_g_priority(struct file *file, void *priv,
|
|
enum v4l2_priority *prio)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
*prio = v4l2_prio_max(&ch->prio);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_s_priority() - set priority handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @prio: ptr to v4l2_priority structure
|
|
*/
|
|
static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
return v4l2_prio_change(&ch->prio, &fh->prio, p);
|
|
}
|
|
|
|
/**
|
|
* vpif_cropcap() - cropcap handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @crop: ptr to v4l2_cropcap structure
|
|
*/
|
|
static int vpif_cropcap(struct file *file, void *priv,
|
|
struct v4l2_cropcap *crop)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
|
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != crop->type)
|
|
return -EINVAL;
|
|
|
|
crop->bounds.left = 0;
|
|
crop->bounds.top = 0;
|
|
crop->bounds.height = common->height;
|
|
crop->bounds.width = common->width;
|
|
crop->defrect = crop->bounds;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_enum_dv_presets() - ENUM_DV_PRESETS handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @preset: input preset
|
|
*/
|
|
static int vpif_enum_dv_presets(struct file *file, void *priv,
|
|
struct v4l2_dv_enum_preset *preset)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index],
|
|
video, enum_dv_presets, preset);
|
|
}
|
|
|
|
/**
|
|
* vpif_query_dv_presets() - QUERY_DV_PRESET handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @preset: input preset
|
|
*/
|
|
static int vpif_query_dv_preset(struct file *file, void *priv,
|
|
struct v4l2_dv_preset *preset)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index],
|
|
video, query_dv_preset, preset);
|
|
}
|
|
/**
|
|
* vpif_s_dv_presets() - S_DV_PRESETS handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @preset: input preset
|
|
*/
|
|
static int vpif_s_dv_preset(struct file *file, void *priv,
|
|
struct v4l2_dv_preset *preset)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
|
|
int ret = 0;
|
|
|
|
if (common->started) {
|
|
vpif_dbg(1, debug, "streaming in progress\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((VPIF_CHANNEL0_VIDEO == ch->channel_id) ||
|
|
(VPIF_CHANNEL1_VIDEO == ch->channel_id)) {
|
|
if (!fh->initialized) {
|
|
vpif_dbg(1, debug, "Channel Busy\n");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
ret = v4l2_prio_check(&ch->prio, fh->prio);
|
|
if (ret)
|
|
return ret;
|
|
|
|
fh->initialized = 1;
|
|
|
|
/* Call encoder subdevice function to set the standard */
|
|
if (mutex_lock_interruptible(&common->lock))
|
|
return -ERESTARTSYS;
|
|
|
|
ch->video.dv_preset = preset->preset;
|
|
ch->video.stdid = V4L2_STD_UNKNOWN;
|
|
memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings));
|
|
|
|
/* Get the information about the standard */
|
|
if (vpif_update_std_info(ch)) {
|
|
vpif_dbg(1, debug, "Error getting the standard info\n");
|
|
ret = -EINVAL;
|
|
} else {
|
|
/* Configure the default format information */
|
|
vpif_config_format(ch);
|
|
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index],
|
|
video, s_dv_preset, preset);
|
|
}
|
|
|
|
mutex_unlock(&common->lock);
|
|
|
|
return ret;
|
|
}
|
|
/**
|
|
* vpif_g_dv_presets() - G_DV_PRESETS handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @preset: input preset
|
|
*/
|
|
static int vpif_g_dv_preset(struct file *file, void *priv,
|
|
struct v4l2_dv_preset *preset)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
preset->preset = ch->video.dv_preset;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_s_dv_timings() - S_DV_TIMINGS handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @timings: digital video timings
|
|
*/
|
|
static int vpif_s_dv_timings(struct file *file, void *priv,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct vpif_params *vpifparams = &ch->vpifparams;
|
|
struct vpif_channel_config_params *std_info = &vpifparams->std_info;
|
|
struct video_obj *vid_ch = &ch->video;
|
|
struct v4l2_bt_timings *bt = &vid_ch->bt_timings;
|
|
int ret;
|
|
|
|
if (timings->type != V4L2_DV_BT_656_1120) {
|
|
vpif_dbg(2, debug, "Timing type not defined\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Configure subdevice timings, if any */
|
|
ret = v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index],
|
|
video, s_dv_timings, timings);
|
|
if (ret == -ENOIOCTLCMD) {
|
|
vpif_dbg(2, debug, "Custom DV timings not supported by "
|
|
"subdevice\n");
|
|
return -EINVAL;
|
|
}
|
|
if (ret < 0) {
|
|
vpif_dbg(2, debug, "Error setting custom DV timings\n");
|
|
return ret;
|
|
}
|
|
|
|
if (!(timings->bt.width && timings->bt.height &&
|
|
(timings->bt.hbackporch ||
|
|
timings->bt.hfrontporch ||
|
|
timings->bt.hsync) &&
|
|
timings->bt.vfrontporch &&
|
|
(timings->bt.vbackporch ||
|
|
timings->bt.vsync))) {
|
|
vpif_dbg(2, debug, "Timings for width, height, "
|
|
"horizontal back porch, horizontal sync, "
|
|
"horizontal front porch, vertical back porch, "
|
|
"vertical sync and vertical back porch "
|
|
"must be defined\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
*bt = timings->bt;
|
|
|
|
/* Configure video port timings */
|
|
|
|
std_info->eav2sav = bt->hbackporch + bt->hfrontporch +
|
|
bt->hsync - 8;
|
|
std_info->sav2eav = bt->width;
|
|
|
|
std_info->l1 = 1;
|
|
std_info->l3 = bt->vsync + bt->vbackporch + 1;
|
|
|
|
if (bt->interlaced) {
|
|
if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) {
|
|
std_info->vsize = bt->height * 2 +
|
|
bt->vfrontporch + bt->vsync + bt->vbackporch +
|
|
bt->il_vfrontporch + bt->il_vsync +
|
|
bt->il_vbackporch;
|
|
std_info->l5 = std_info->vsize/2 -
|
|
(bt->vfrontporch - 1);
|
|
std_info->l7 = std_info->vsize/2 + 1;
|
|
std_info->l9 = std_info->l7 + bt->il_vsync +
|
|
bt->il_vbackporch + 1;
|
|
std_info->l11 = std_info->vsize -
|
|
(bt->il_vfrontporch - 1);
|
|
} else {
|
|
vpif_dbg(2, debug, "Required timing values for "
|
|
"interlaced BT format missing\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
std_info->vsize = bt->height + bt->vfrontporch +
|
|
bt->vsync + bt->vbackporch;
|
|
std_info->l5 = std_info->vsize - (bt->vfrontporch - 1);
|
|
}
|
|
strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME);
|
|
std_info->width = bt->width;
|
|
std_info->height = bt->height;
|
|
std_info->frm_fmt = bt->interlaced ? 0 : 1;
|
|
std_info->ycmux_mode = 0;
|
|
std_info->capture_format = 0;
|
|
std_info->vbi_supported = 0;
|
|
std_info->hd_sd = 1;
|
|
std_info->stdid = 0;
|
|
std_info->dv_preset = V4L2_DV_INVALID;
|
|
|
|
vid_ch->stdid = 0;
|
|
vid_ch->dv_preset = V4L2_DV_INVALID;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vpif_g_dv_timings() - G_DV_TIMINGS handler
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @timings: digital video timings
|
|
*/
|
|
static int vpif_g_dv_timings(struct file *file, void *priv,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
struct video_obj *vid_ch = &ch->video;
|
|
struct v4l2_bt_timings *bt = &vid_ch->bt_timings;
|
|
|
|
timings->bt = *bt;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* vpif_g_chip_ident() - Identify the chip
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @chip: chip identity
|
|
*
|
|
* Returns zero or -EINVAL if read operations fails.
|
|
*/
|
|
static int vpif_g_chip_ident(struct file *file, void *priv,
|
|
struct v4l2_dbg_chip_ident *chip)
|
|
{
|
|
chip->ident = V4L2_IDENT_NONE;
|
|
chip->revision = 0;
|
|
if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER &&
|
|
chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) {
|
|
vpif_dbg(2, debug, "match_type is invalid.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 0, core,
|
|
g_chip_ident, chip);
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
/*
|
|
* vpif_dbg_g_register() - Read register
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @reg: register to be read
|
|
*
|
|
* Debugging only
|
|
* Returns zero or -EINVAL if read operations fails.
|
|
*/
|
|
static int vpif_dbg_g_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg){
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], core,
|
|
g_register, reg);
|
|
}
|
|
|
|
/*
|
|
* vpif_dbg_s_register() - Write to register
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
* @reg: register to be modified
|
|
*
|
|
* Debugging only
|
|
* Returns zero or -EINVAL if write operations fails.
|
|
*/
|
|
static int vpif_dbg_s_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg){
|
|
struct vpif_fh *fh = priv;
|
|
struct channel_obj *ch = fh->channel;
|
|
|
|
return v4l2_subdev_call(vpif_obj.sd[ch->curr_sd_index], core,
|
|
s_register, reg);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* vpif_log_status() - Status information
|
|
* @file: file ptr
|
|
* @priv: file handle
|
|
*
|
|
* Returns zero.
|
|
*/
|
|
static int vpif_log_status(struct file *filep, void *priv)
|
|
{
|
|
/* status for sub devices */
|
|
v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* vpif capture ioctl operations */
|
|
static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
|
|
.vidioc_querycap = vpif_querycap,
|
|
.vidioc_g_priority = vpif_g_priority,
|
|
.vidioc_s_priority = vpif_s_priority,
|
|
.vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap,
|
|
.vidioc_enum_input = vpif_enum_input,
|
|
.vidioc_s_input = vpif_s_input,
|
|
.vidioc_g_input = vpif_g_input,
|
|
.vidioc_reqbufs = vpif_reqbufs,
|
|
.vidioc_querybuf = vpif_querybuf,
|
|
.vidioc_querystd = vpif_querystd,
|
|
.vidioc_s_std = vpif_s_std,
|
|
.vidioc_g_std = vpif_g_std,
|
|
.vidioc_qbuf = vpif_qbuf,
|
|
.vidioc_dqbuf = vpif_dqbuf,
|
|
.vidioc_streamon = vpif_streamon,
|
|
.vidioc_streamoff = vpif_streamoff,
|
|
.vidioc_cropcap = vpif_cropcap,
|
|
.vidioc_enum_dv_presets = vpif_enum_dv_presets,
|
|
.vidioc_s_dv_preset = vpif_s_dv_preset,
|
|
.vidioc_g_dv_preset = vpif_g_dv_preset,
|
|
.vidioc_query_dv_preset = vpif_query_dv_preset,
|
|
.vidioc_s_dv_timings = vpif_s_dv_timings,
|
|
.vidioc_g_dv_timings = vpif_g_dv_timings,
|
|
.vidioc_g_chip_ident = vpif_g_chip_ident,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = vpif_dbg_g_register,
|
|
.vidioc_s_register = vpif_dbg_s_register,
|
|
#endif
|
|
.vidioc_log_status = vpif_log_status,
|
|
};
|
|
|
|
/* vpif file operations */
|
|
static struct v4l2_file_operations vpif_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = vpif_open,
|
|
.release = vpif_release,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.mmap = vpif_mmap,
|
|
.poll = vpif_poll
|
|
};
|
|
|
|
/* vpif video template */
|
|
static struct video_device vpif_video_template = {
|
|
.name = "vpif",
|
|
.fops = &vpif_fops,
|
|
.minor = -1,
|
|
.ioctl_ops = &vpif_ioctl_ops,
|
|
};
|
|
|
|
/**
|
|
* initialize_vpif() - Initialize vpif data structures
|
|
*
|
|
* Allocate memory for data structures and initialize them
|
|
*/
|
|
static int initialize_vpif(void)
|
|
{
|
|
int err = 0, i, j;
|
|
int free_channel_objects_index;
|
|
|
|
/* Default number of buffers should be 3 */
|
|
if ((ch0_numbuffers > 0) &&
|
|
(ch0_numbuffers < config_params.min_numbuffers))
|
|
ch0_numbuffers = config_params.min_numbuffers;
|
|
if ((ch1_numbuffers > 0) &&
|
|
(ch1_numbuffers < config_params.min_numbuffers))
|
|
ch1_numbuffers = config_params.min_numbuffers;
|
|
|
|
/* Set buffer size to min buffers size if it is invalid */
|
|
if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO])
|
|
ch0_bufsize =
|
|
config_params.min_bufsize[VPIF_CHANNEL0_VIDEO];
|
|
if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO])
|
|
ch1_bufsize =
|
|
config_params.min_bufsize[VPIF_CHANNEL1_VIDEO];
|
|
|
|
config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers;
|
|
config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers;
|
|
if (ch0_numbuffers) {
|
|
config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO]
|
|
= ch0_bufsize;
|
|
}
|
|
if (ch1_numbuffers) {
|
|
config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO]
|
|
= ch1_bufsize;
|
|
}
|
|
|
|
/* Allocate memory for six channel objects */
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
|
|
vpif_obj.dev[i] =
|
|
kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL);
|
|
/* If memory allocation fails, return error */
|
|
if (!vpif_obj.dev[i]) {
|
|
free_channel_objects_index = i;
|
|
err = -ENOMEM;
|
|
goto vpif_init_free_channel_objects;
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
vpif_init_free_channel_objects:
|
|
for (j = 0; j < free_channel_objects_index; j++)
|
|
kfree(vpif_obj.dev[j]);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* vpif_probe : This function probes the vpif capture driver
|
|
* @pdev: platform device pointer
|
|
*
|
|
* This creates device entries by register itself to the V4L2 driver and
|
|
* initializes fields of each channel objects
|
|
*/
|
|
static __init int vpif_probe(struct platform_device *pdev)
|
|
{
|
|
struct vpif_subdev_info *subdevdata;
|
|
struct vpif_capture_config *config;
|
|
int i, j, k, m, q, err;
|
|
struct i2c_adapter *i2c_adap;
|
|
struct channel_obj *ch;
|
|
struct common_obj *common;
|
|
struct video_device *vfd;
|
|
struct resource *res;
|
|
int subdev_count;
|
|
size_t size;
|
|
|
|
vpif_dev = &pdev->dev;
|
|
|
|
err = initialize_vpif();
|
|
if (err) {
|
|
v4l2_err(vpif_dev->driver, "Error initializing vpif\n");
|
|
return err;
|
|
}
|
|
|
|
err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev);
|
|
if (err) {
|
|
v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n");
|
|
return err;
|
|
}
|
|
|
|
k = 0;
|
|
while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, k))) {
|
|
for (i = res->start; i <= res->end; i++) {
|
|
if (request_irq(i, vpif_channel_isr, IRQF_SHARED,
|
|
"VPIF_Capture",
|
|
(void *)(&vpif_obj.dev[k]->channel_id))) {
|
|
err = -EBUSY;
|
|
i--;
|
|
goto vpif_int_err;
|
|
}
|
|
}
|
|
k++;
|
|
}
|
|
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
|
|
/* Get the pointer to the channel object */
|
|
ch = vpif_obj.dev[i];
|
|
/* Allocate memory for video device */
|
|
vfd = video_device_alloc();
|
|
if (NULL == vfd) {
|
|
for (j = 0; j < i; j++) {
|
|
ch = vpif_obj.dev[j];
|
|
video_device_release(ch->video_dev);
|
|
}
|
|
err = -ENOMEM;
|
|
goto vpif_dev_alloc_err;
|
|
}
|
|
|
|
/* Initialize field of video device */
|
|
*vfd = vpif_video_template;
|
|
vfd->v4l2_dev = &vpif_obj.v4l2_dev;
|
|
vfd->release = video_device_release;
|
|
snprintf(vfd->name, sizeof(vfd->name),
|
|
"VPIF_Capture_DRIVER_V%s",
|
|
VPIF_CAPTURE_VERSION);
|
|
/* Set video_dev to the video device */
|
|
ch->video_dev = vfd;
|
|
}
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (res) {
|
|
size = resource_size(res);
|
|
/* The resources are divided into two equal memory and when we
|
|
* have HD output we can add them together
|
|
*/
|
|
for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) {
|
|
ch = vpif_obj.dev[j];
|
|
ch->channel_id = j;
|
|
/* only enabled if second resource exists */
|
|
config_params.video_limit[ch->channel_id] = 0;
|
|
if (size)
|
|
config_params.video_limit[ch->channel_id] =
|
|
size/2;
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) {
|
|
ch = vpif_obj.dev[j];
|
|
ch->channel_id = j;
|
|
common = &(ch->common[VPIF_VIDEO_INDEX]);
|
|
spin_lock_init(&common->irqlock);
|
|
mutex_init(&common->lock);
|
|
/* Locking in file operations other than ioctl should be done
|
|
by the driver, not the V4L2 core.
|
|
This driver needs auditing so that this flag can be removed. */
|
|
set_bit(V4L2_FL_LOCK_ALL_FOPS, &ch->video_dev->flags);
|
|
ch->video_dev->lock = &common->lock;
|
|
/* Initialize prio member of channel object */
|
|
v4l2_prio_init(&ch->prio);
|
|
err = video_register_device(ch->video_dev,
|
|
VFL_TYPE_GRABBER, (j ? 1 : 0));
|
|
if (err)
|
|
goto probe_out;
|
|
|
|
video_set_drvdata(ch->video_dev, ch);
|
|
|
|
}
|
|
|
|
i2c_adap = i2c_get_adapter(1);
|
|
config = pdev->dev.platform_data;
|
|
|
|
subdev_count = config->subdev_count;
|
|
vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
|
|
GFP_KERNEL);
|
|
if (vpif_obj.sd == NULL) {
|
|
vpif_err("unable to allocate memory for subdevice pointers\n");
|
|
err = -ENOMEM;
|
|
goto probe_out;
|
|
}
|
|
|
|
for (i = 0; i < subdev_count; i++) {
|
|
subdevdata = &config->subdev_info[i];
|
|
vpif_obj.sd[i] =
|
|
v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
|
|
i2c_adap,
|
|
&subdevdata->board_info,
|
|
NULL);
|
|
|
|
if (!vpif_obj.sd[i]) {
|
|
vpif_err("Error registering v4l2 subdevice\n");
|
|
goto probe_subdev_out;
|
|
}
|
|
v4l2_info(&vpif_obj.v4l2_dev, "registered sub device %s\n",
|
|
subdevdata->name);
|
|
|
|
if (vpif_obj.sd[i])
|
|
vpif_obj.sd[i]->grp_id = 1 << i;
|
|
}
|
|
|
|
v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n");
|
|
return 0;
|
|
|
|
probe_subdev_out:
|
|
/* free sub devices memory */
|
|
kfree(vpif_obj.sd);
|
|
|
|
j = VPIF_CAPTURE_MAX_DEVICES;
|
|
probe_out:
|
|
for (k = 0; k < j; k++) {
|
|
/* Get the pointer to the channel object */
|
|
ch = vpif_obj.dev[k];
|
|
/* Unregister video device */
|
|
video_unregister_device(ch->video_dev);
|
|
}
|
|
|
|
vpif_dev_alloc_err:
|
|
k = VPIF_CAPTURE_MAX_DEVICES-1;
|
|
res = platform_get_resource(pdev, IORESOURCE_IRQ, k);
|
|
i = res->end;
|
|
|
|
vpif_int_err:
|
|
for (q = k; q >= 0; q--) {
|
|
for (m = i; m >= (int)res->start; m--)
|
|
free_irq(m, (void *)(&vpif_obj.dev[q]->channel_id));
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_IRQ, q-1);
|
|
if (res)
|
|
i = res->end;
|
|
}
|
|
v4l2_device_unregister(&vpif_obj.v4l2_dev);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* vpif_remove() - driver remove handler
|
|
* @device: ptr to platform device structure
|
|
*
|
|
* The vidoe device is unregistered
|
|
*/
|
|
static int vpif_remove(struct platform_device *device)
|
|
{
|
|
int i;
|
|
struct channel_obj *ch;
|
|
|
|
v4l2_device_unregister(&vpif_obj.v4l2_dev);
|
|
|
|
/* un-register device */
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
|
|
/* Get the pointer to the channel object */
|
|
ch = vpif_obj.dev[i];
|
|
/* Unregister video device */
|
|
video_unregister_device(ch->video_dev);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/**
|
|
* vpif_suspend: vpif device suspend
|
|
*/
|
|
static int vpif_suspend(struct device *dev)
|
|
{
|
|
|
|
struct common_obj *common;
|
|
struct channel_obj *ch;
|
|
int i;
|
|
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
|
|
/* Get the pointer to the channel object */
|
|
ch = vpif_obj.dev[i];
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
mutex_lock(&common->lock);
|
|
if (ch->usrs && common->io_usrs) {
|
|
/* Disable channel */
|
|
if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
|
|
enable_channel0(0);
|
|
channel0_intr_enable(0);
|
|
}
|
|
if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
|
|
common->started == 2) {
|
|
enable_channel1(0);
|
|
channel1_intr_enable(0);
|
|
}
|
|
}
|
|
mutex_unlock(&common->lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* vpif_resume: vpif device suspend
|
|
*/
|
|
static int vpif_resume(struct device *dev)
|
|
{
|
|
struct common_obj *common;
|
|
struct channel_obj *ch;
|
|
int i;
|
|
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
|
|
/* Get the pointer to the channel object */
|
|
ch = vpif_obj.dev[i];
|
|
common = &ch->common[VPIF_VIDEO_INDEX];
|
|
mutex_lock(&common->lock);
|
|
if (ch->usrs && common->io_usrs) {
|
|
/* Disable channel */
|
|
if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
|
|
enable_channel0(1);
|
|
channel0_intr_enable(1);
|
|
}
|
|
if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
|
|
common->started == 2) {
|
|
enable_channel1(1);
|
|
channel1_intr_enable(1);
|
|
}
|
|
}
|
|
mutex_unlock(&common->lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops vpif_dev_pm_ops = {
|
|
.suspend = vpif_suspend,
|
|
.resume = vpif_resume,
|
|
};
|
|
|
|
#define vpif_pm_ops (&vpif_dev_pm_ops)
|
|
#else
|
|
#define vpif_pm_ops NULL
|
|
#endif
|
|
|
|
static __refdata struct platform_driver vpif_driver = {
|
|
.driver = {
|
|
.name = "vpif_capture",
|
|
.owner = THIS_MODULE,
|
|
.pm = vpif_pm_ops,
|
|
},
|
|
.probe = vpif_probe,
|
|
.remove = vpif_remove,
|
|
};
|
|
|
|
/**
|
|
* vpif_init: initialize the vpif driver
|
|
*
|
|
* This function registers device and driver to the kernel, requests irq
|
|
* handler and allocates memory
|
|
* for channel objects
|
|
*/
|
|
static __init int vpif_init(void)
|
|
{
|
|
return platform_driver_register(&vpif_driver);
|
|
}
|
|
|
|
/**
|
|
* vpif_cleanup : This function clean up the vpif capture resources
|
|
*
|
|
* This will un-registers device and driver to the kernel, frees
|
|
* requested irq handler and de-allocates memory allocated for channel
|
|
* objects.
|
|
*/
|
|
static void vpif_cleanup(void)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct resource *res;
|
|
int irq_num;
|
|
int i = 0;
|
|
|
|
pdev = container_of(vpif_dev, struct platform_device, dev);
|
|
while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) {
|
|
for (irq_num = res->start; irq_num <= res->end; irq_num++)
|
|
free_irq(irq_num,
|
|
(void *)(&vpif_obj.dev[i]->channel_id));
|
|
i++;
|
|
}
|
|
|
|
platform_driver_unregister(&vpif_driver);
|
|
|
|
kfree(vpif_obj.sd);
|
|
for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++)
|
|
kfree(vpif_obj.dev[i]);
|
|
}
|
|
|
|
/* Function for module initialization and cleanup */
|
|
module_init(vpif_init);
|
|
module_exit(vpif_cleanup);
|