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linux/drivers/media/video/tlg2300/pd-video.c

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#include <linux/fs.h>
#include <linux/vmalloc.h>
#include <linux/videodev2.h>
#include <linux/usb.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-dev.h>
#include "pd-common.h"
#include "vendorcmds.h"
#ifdef CONFIG_PM
static int pm_video_suspend(struct poseidon *pd);
static int pm_video_resume(struct poseidon *pd);
#endif
static void iso_bubble_handler(struct work_struct *w);
static int usb_transfer_mode;
module_param(usb_transfer_mode, int, 0644);
MODULE_PARM_DESC(usb_transfer_mode, "0 = Bulk, 1 = Isochronous");
static const struct poseidon_format poseidon_formats[] = {
{ "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0},
{ "RGB565", V4L2_PIX_FMT_RGB565, 16, 0},
};
static const struct poseidon_tvnorm poseidon_tvnorms[] = {
{ V4L2_STD_PAL_D, "PAL-D", TLG_TUNE_VSTD_PAL_D },
{ V4L2_STD_PAL_B, "PAL-B", TLG_TUNE_VSTD_PAL_B },
{ V4L2_STD_PAL_G, "PAL-G", TLG_TUNE_VSTD_PAL_G },
{ V4L2_STD_PAL_H, "PAL-H", TLG_TUNE_VSTD_PAL_H },
{ V4L2_STD_PAL_I, "PAL-I", TLG_TUNE_VSTD_PAL_I },
{ V4L2_STD_PAL_M, "PAL-M", TLG_TUNE_VSTD_PAL_M },
{ V4L2_STD_PAL_N, "PAL-N", TLG_TUNE_VSTD_PAL_N_COMBO },
{ V4L2_STD_PAL_Nc, "PAL-Nc", TLG_TUNE_VSTD_PAL_N_COMBO },
{ V4L2_STD_NTSC_M, "NTSC-M", TLG_TUNE_VSTD_NTSC_M },
{ V4L2_STD_NTSC_M_JP, "NTSC-JP", TLG_TUNE_VSTD_NTSC_M_J },
{ V4L2_STD_SECAM_B, "SECAM-B", TLG_TUNE_VSTD_SECAM_B },
{ V4L2_STD_SECAM_D, "SECAM-D", TLG_TUNE_VSTD_SECAM_D },
{ V4L2_STD_SECAM_G, "SECAM-G", TLG_TUNE_VSTD_SECAM_G },
{ V4L2_STD_SECAM_H, "SECAM-H", TLG_TUNE_VSTD_SECAM_H },
{ V4L2_STD_SECAM_K, "SECAM-K", TLG_TUNE_VSTD_SECAM_K },
{ V4L2_STD_SECAM_K1, "SECAM-K1", TLG_TUNE_VSTD_SECAM_K1 },
{ V4L2_STD_SECAM_L, "SECAM-L", TLG_TUNE_VSTD_SECAM_L },
{ V4L2_STD_SECAM_LC, "SECAM-LC", TLG_TUNE_VSTD_SECAM_L1 },
};
static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms);
struct pd_audio_mode {
u32 tlg_audio_mode;
u32 v4l2_audio_sub;
u32 v4l2_audio_mode;
};
static const struct pd_audio_mode pd_audio_modes[] = {
{ TLG_TUNE_TVAUDIO_MODE_MONO, V4L2_TUNER_SUB_MONO,
V4L2_TUNER_MODE_MONO },
{ TLG_TUNE_TVAUDIO_MODE_STEREO, V4L2_TUNER_SUB_STEREO,
V4L2_TUNER_MODE_STEREO },
{ TLG_TUNE_TVAUDIO_MODE_LANG_A, V4L2_TUNER_SUB_LANG1,
V4L2_TUNER_MODE_LANG1 },
{ TLG_TUNE_TVAUDIO_MODE_LANG_B, V4L2_TUNER_SUB_LANG2,
V4L2_TUNER_MODE_LANG2 },
{ TLG_TUNE_TVAUDIO_MODE_LANG_C, V4L2_TUNER_SUB_LANG1,
V4L2_TUNER_MODE_LANG1_LANG2 }
};
static const unsigned int POSEIDON_AUDIOMODS = ARRAY_SIZE(pd_audio_modes);
struct pd_input {
char *name;
uint32_t tlg_src;
};
static const struct pd_input pd_inputs[] = {
{ "TV Antenna", TLG_SIG_SRC_ANTENNA },
{ "TV Cable", TLG_SIG_SRC_CABLE },
{ "TV SVideo", TLG_SIG_SRC_SVIDEO },
{ "TV Composite", TLG_SIG_SRC_COMPOSITE }
};
static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs);
struct poseidon_control {
struct v4l2_queryctrl v4l2_ctrl;
enum cmd_custom_param_id vc_id;
};
static struct poseidon_control controls[] = {
{
{ V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
"brightness", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_BRIGHTNESS_CTRL
}, {
{ V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
"contrast", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_CONTRAST_CTRL,
}, {
{ V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
"hue", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_HUE_CTRL,
}, {
{ V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
"saturation", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_SATURATION_CTRL,
},
};
struct video_std_to_audio_std {
v4l2_std_id video_std;
int audio_std;
};
static const struct video_std_to_audio_std video_to_audio_map[] = {
/* country : { 27, 32, 33, 34, 36, 44, 45, 46, 47, 48, 64,
65, 86, 351, 352, 353, 354, 358, 372, 852, 972 } */
{ (V4L2_STD_PAL_I | V4L2_STD_PAL_B | V4L2_STD_PAL_D |
V4L2_STD_SECAM_L | V4L2_STD_SECAM_D), TLG_TUNE_ASTD_NICAM },
/* country : { 1, 52, 54, 55, 886 } */
{V4L2_STD_NTSC_M | V4L2_STD_PAL_N | V4L2_STD_PAL_M, TLG_TUNE_ASTD_BTSC},
/* country : { 81 } */
{ V4L2_STD_NTSC_M_JP, TLG_TUNE_ASTD_EIAJ },
/* other country : TLG_TUNE_ASTD_A2 */
};
static const unsigned int map_size = ARRAY_SIZE(video_to_audio_map);
static int get_audio_std(v4l2_std_id v4l2_std)
{
int i = 0;
for (; i < map_size; i++) {
if (v4l2_std & video_to_audio_map[i].video_std)
return video_to_audio_map[i].audio_std;
}
return TLG_TUNE_ASTD_A2;
}
static int vidioc_querycap(struct file *file, void *fh,
struct v4l2_capability *cap)
{
struct front_face *front = fh;
struct poseidon *p = front->pd;
logs(front);
strcpy(cap->driver, "tele-video");
strcpy(cap->card, "Telegent Poseidon");
usb_make_path(p->udev, cap->bus_info, sizeof(cap->bus_info));
cap->version = KERNEL_VERSION(0, 0, 1);
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE;
return 0;
}
/*====================================================================*/
static void init_copy(struct video_data *video, bool index)
{
struct front_face *front = video->front;
video->field_count = index;
video->lines_copied = 0;
video->prev_left = 0 ;
video->dst = (char *)videobuf_to_vmalloc(front->curr_frame)
+ index * video->lines_size;
video->vbi->copied = 0; /* set it here */
}
static bool get_frame(struct front_face *front, int *need_init)
{
struct videobuf_buffer *vb = front->curr_frame;
if (vb)
return true;
spin_lock(&front->queue_lock);
if (!list_empty(&front->active)) {
vb = list_entry(front->active.next,
struct videobuf_buffer, queue);
if (need_init)
*need_init = 1;
front->curr_frame = vb;
list_del_init(&vb->queue);
}
spin_unlock(&front->queue_lock);
return !!vb;
}
/* check if the video's buffer is ready */
static bool get_video_frame(struct front_face *front, struct video_data *video)
{
int need_init = 0;
bool ret = true;
ret = get_frame(front, &need_init);
if (ret && need_init)
init_copy(video, 0);
return ret;
}
static void submit_frame(struct front_face *front)
{
struct videobuf_buffer *vb = front->curr_frame;
if (vb == NULL)
return;
front->curr_frame = NULL;
vb->state = VIDEOBUF_DONE;
vb->field_count++;
do_gettimeofday(&vb->ts);
wake_up(&vb->done);
}
/*
* A frame is composed of two fields. If we receive all the two fields,
* call the submit_frame() to submit the whole frame to applications.
*/
static void end_field(struct video_data *video)
{
/* logs(video->front); */
if (1 == video->field_count)
submit_frame(video->front);
else
init_copy(video, 1);
}
static void copy_video_data(struct video_data *video, char *src,
unsigned int count)
{
#define copy_data(len) \
do { \
if (++video->lines_copied > video->lines_per_field) \
goto overflow; \
memcpy(video->dst, src, len);\
video->dst += len + video->lines_size; \
src += len; \
count -= len; \
} while (0)
while (count && count >= video->lines_size) {
if (video->prev_left) {
copy_data(video->prev_left);
video->prev_left = 0;
continue;
}
copy_data(video->lines_size);
}
if (count && count < video->lines_size) {
memcpy(video->dst, src, count);
video->prev_left = video->lines_size - count;
video->dst += count;
}
return;
overflow:
end_field(video);
}
static void check_trailer(struct video_data *video, char *src, int count)
{
struct vbi_data *vbi = video->vbi;
int offset; /* trailer's offset */
char *buf;
offset = (video->context.pix.sizeimage / 2 + vbi->vbi_size / 2)
- (vbi->copied + video->lines_size * video->lines_copied);
if (video->prev_left)
offset -= (video->lines_size - video->prev_left);
if (offset > count || offset <= 0)
goto short_package;
buf = src + offset;
/* trailer : (VFHS) + U32 + U32 + field_num */
if (!strncmp(buf, "VFHS", 4)) {
int field_num = *((u32 *)(buf + 12));
if ((field_num & 1) ^ video->field_count) {
init_copy(video, video->field_count);
return;
}
copy_video_data(video, src, offset);
}
short_package:
end_field(video);
}
/* ========== Check this more carefully! =========== */
static inline void copy_vbi_data(struct vbi_data *vbi,
char *src, unsigned int count)
{
struct front_face *front = vbi->front;
if (front && get_frame(front, NULL)) {
char *buf = videobuf_to_vmalloc(front->curr_frame);
if (vbi->video->field_count)
buf += (vbi->vbi_size / 2);
memcpy(buf + vbi->copied, src, count);
}
vbi->copied += count;
}
/*
* Copy the normal data (VBI or VIDEO) without the trailer.
* VBI is not interlaced, while VIDEO is interlaced.
*/
static inline void copy_vbi_video_data(struct video_data *video,
char *src, unsigned int count)
{
struct vbi_data *vbi = video->vbi;
unsigned int vbi_delta = (vbi->vbi_size / 2) - vbi->copied;
if (vbi_delta >= count) {
copy_vbi_data(vbi, src, count);
} else {
if (vbi_delta) {
copy_vbi_data(vbi, src, vbi_delta);
/* we receive the two fields of the VBI*/
if (vbi->front && video->field_count)
submit_frame(vbi->front);
}
copy_video_data(video, src + vbi_delta, count - vbi_delta);
}
}
static void urb_complete_bulk(struct urb *urb)
{
struct front_face *front = urb->context;
struct video_data *video = &front->pd->video_data;
char *src = (char *)urb->transfer_buffer;
int count = urb->actual_length;
int ret = 0;
if (!video->is_streaming || urb->status) {
if (urb->status == -EPROTO)
goto resend_it;
return;
}
if (!get_video_frame(front, video))
goto resend_it;
if (count == urb->transfer_buffer_length)
copy_vbi_video_data(video, src, count);
else
check_trailer(video, src, count);
resend_it:
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret)
log(" submit failed: error %d", ret);
}
/************************* for ISO *********************/
#define GET_SUCCESS (0)
#define GET_TRAILER (1)
#define GET_TOO_MUCH_BUBBLE (2)
#define GET_NONE (3)
static int get_chunk(int start, struct urb *urb,
int *head, int *tail, int *bubble_err)
{
struct usb_iso_packet_descriptor *pkt = NULL;
int ret = GET_SUCCESS;
for (*head = *tail = -1; start < urb->number_of_packets; start++) {
pkt = &urb->iso_frame_desc[start];
/* handle the bubble of the Hub */
if (-EOVERFLOW == pkt->status) {
if (++*bubble_err > urb->number_of_packets / 3)
return GET_TOO_MUCH_BUBBLE;
continue;
}
/* This is the gap */
if (pkt->status || pkt->actual_length <= 0
|| pkt->actual_length > ISO_PKT_SIZE) {
if (*head != -1)
break;
continue;
}
/* a good isochronous packet */
if (pkt->actual_length == ISO_PKT_SIZE) {
if (*head == -1)
*head = start;
*tail = start;
continue;
}
/* trailer is here */
if (pkt->actual_length < ISO_PKT_SIZE) {
if (*head == -1) {
*head = start;
*tail = start;
return GET_TRAILER;
}
break;
}
}
if (*head == -1 && *tail == -1)
ret = GET_NONE;
return ret;
}
/*
* |__|------|___|-----|_______|
* ^ ^
* | |
* gap gap
*/
static void urb_complete_iso(struct urb *urb)
{
struct front_face *front = urb->context;
struct video_data *video = &front->pd->video_data;
int bubble_err = 0, head = 0, tail = 0;
char *src = (char *)urb->transfer_buffer;
int ret = 0;
if (!video->is_streaming)
return;
do {
if (!get_video_frame(front, video))
goto out;
switch (get_chunk(head, urb, &head, &tail, &bubble_err)) {
case GET_SUCCESS:
copy_vbi_video_data(video, src + (head * ISO_PKT_SIZE),
(tail - head + 1) * ISO_PKT_SIZE);
break;
case GET_TRAILER:
check_trailer(video, src + (head * ISO_PKT_SIZE),
ISO_PKT_SIZE);
break;
case GET_NONE:
goto out;
case GET_TOO_MUCH_BUBBLE:
log("\t We got too much bubble");
schedule_work(&video->bubble_work);
return;
}
} while (head = tail + 1, head < urb->number_of_packets);
out:
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret)
log("usb_submit_urb err : %d", ret);
}
/*============================= [ end ] =====================*/
static int prepare_iso_urb(struct video_data *video)
{
struct usb_device *udev = video->pd->udev;
int i;
if (video->urb_array[0])
return 0;
for (i = 0; i < SBUF_NUM; i++) {
struct urb *urb;
void *mem;
int j;
urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL);
if (urb == NULL)
goto out;
video->urb_array[i] = urb;
mem = usb_alloc_coherent(udev,
ISO_PKT_SIZE * PK_PER_URB,
GFP_KERNEL,
&urb->transfer_dma);
urb->complete = urb_complete_iso; /* handler */
urb->dev = udev;
urb->context = video->front;
urb->pipe = usb_rcvisocpipe(udev,
video->endpoint_addr);
urb->interval = 1;
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
urb->number_of_packets = PK_PER_URB;
urb->transfer_buffer = mem;
urb->transfer_buffer_length = PK_PER_URB * ISO_PKT_SIZE;
for (j = 0; j < PK_PER_URB; j++) {
urb->iso_frame_desc[j].offset = ISO_PKT_SIZE * j;
urb->iso_frame_desc[j].length = ISO_PKT_SIZE;
}
}
return 0;
out:
for (; i > 0; i--)
;
return -ENOMEM;
}
/* return the succeeded number of the allocation */
int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
struct usb_device *udev, u8 ep_addr,
int buf_size, gfp_t gfp_flags,
usb_complete_t complete_fn, void *context)
{
struct urb *urb;
void *mem;
int i;
for (i = 0; i < num; i++) {
urb = usb_alloc_urb(0, gfp_flags);
if (urb == NULL)
return i;
mem = usb_alloc_coherent(udev, buf_size, gfp_flags,
&urb->transfer_dma);
if (mem == NULL)
return i;
usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, ep_addr),
mem, buf_size, complete_fn, context);
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
urb_array[i] = urb;
}
return i;
}
void free_all_urb_generic(struct urb **urb_array, int num)
{
int i;
struct urb *urb;
for (i = 0; i < num; i++) {
urb = urb_array[i];
if (urb) {
usb_free_coherent(urb->dev,
urb->transfer_buffer_length,
urb->transfer_buffer,
urb->transfer_dma);
usb_free_urb(urb);
urb_array[i] = NULL;
}
}
}
static int prepare_bulk_urb(struct video_data *video)
{
if (video->urb_array[0])
return 0;
alloc_bulk_urbs_generic(video->urb_array, SBUF_NUM,
video->pd->udev, video->endpoint_addr,
0x2000, GFP_KERNEL,
urb_complete_bulk, video->front);
return 0;
}
/* free the URBs */
static void free_all_urb(struct video_data *video)
{
free_all_urb_generic(video->urb_array, SBUF_NUM);
}
static void pd_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
videobuf_vmalloc_free(vb);
vb->state = VIDEOBUF_NEEDS_INIT;
}
static void pd_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct front_face *front = q->priv_data;
vb->state = VIDEOBUF_QUEUED;
list_add_tail(&vb->queue, &front->active);
}
static int pd_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct front_face *front = q->priv_data;
int rc;
switch (front->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (VIDEOBUF_NEEDS_INIT == vb->state) {
struct v4l2_pix_format *pix;
pix = &front->pd->video_data.context.pix;
vb->size = pix->sizeimage; /* real frame size */
vb->width = pix->width;
vb->height = pix->height;
rc = videobuf_iolock(q, vb, NULL);
if (rc < 0)
return rc;
}
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (VIDEOBUF_NEEDS_INIT == vb->state) {
vb->size = front->pd->vbi_data.vbi_size;
rc = videobuf_iolock(q, vb, NULL);
if (rc < 0)
return rc;
}
break;
default:
return -EINVAL;
}
vb->field = field;
vb->state = VIDEOBUF_PREPARED;
return 0;
}
static int fire_all_urb(struct video_data *video)
{
int i, ret;
video->is_streaming = 1;
for (i = 0; i < SBUF_NUM; i++) {
ret = usb_submit_urb(video->urb_array[i], GFP_KERNEL);
if (ret)
log("(%d) failed: error %d", i, ret);
}
return ret;
}
static int start_video_stream(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
s32 cmd_status;
send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status);
if (pd->cur_transfer_mode) {
prepare_iso_urb(video);
INIT_WORK(&video->bubble_work, iso_bubble_handler);
} else {
/* The bulk mode does not need a bubble handler */
prepare_bulk_urb(video);
}
fire_all_urb(video);
return 0;
}
static int pd_buf_setup(struct videobuf_queue *q, unsigned int *count,
unsigned int *size)
{
struct front_face *front = q->priv_data;
struct poseidon *pd = front->pd;
switch (front->type) {
default:
return -EINVAL;
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
struct video_data *video = &pd->video_data;
struct v4l2_pix_format *pix = &video->context.pix;
*size = PAGE_ALIGN(pix->sizeimage);/* page aligned frame size */
if (*count < 4)
*count = 4;
if (1) {
/* same in different altersetting */
video->endpoint_addr = 0x82;
video->vbi = &pd->vbi_data;
video->vbi->video = video;
video->pd = pd;
video->lines_per_field = pix->height / 2;
video->lines_size = pix->width * 2;
video->front = front;
}
return start_video_stream(pd);
}
case V4L2_BUF_TYPE_VBI_CAPTURE: {
struct vbi_data *vbi = &pd->vbi_data;
*size = PAGE_ALIGN(vbi->vbi_size);
log("size : %d", *size);
if (*count == 0)
*count = 4;
}
break;
}
return 0;
}
static struct videobuf_queue_ops pd_video_qops = {
.buf_setup = pd_buf_setup,
.buf_prepare = pd_buf_prepare,
.buf_queue = pd_buf_queue,
.buf_release = pd_buf_release,
};
static int vidioc_enum_fmt(struct file *file, void *fh,
struct v4l2_fmtdesc *f)
{
if (ARRAY_SIZE(poseidon_formats) <= f->index)
return -EINVAL;
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
f->flags = 0;
f->pixelformat = poseidon_formats[f->index].fourcc;
strcpy(f->description, poseidon_formats[f->index].name);
return 0;
}
static int vidioc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
logs(front);
f->fmt.pix = pd->video_data.context.pix;
return 0;
}
static int vidioc_try_fmt(struct file *file, void *fh,
struct v4l2_format *f)
{
return 0;
}
/*
* VLC calls VIDIOC_S_STD before VIDIOC_S_FMT, while
* Mplayer calls them in the reverse order.
*/
static int pd_vidioc_s_fmt(struct poseidon *pd, struct v4l2_pix_format *pix)
{
struct video_data *video = &pd->video_data;
struct running_context *context = &video->context;
struct v4l2_pix_format *pix_def = &context->pix;
s32 ret = 0, cmd_status = 0, vid_resol;
/* set the pixel format to firmware */
if (pix->pixelformat == V4L2_PIX_FMT_RGB565) {
vid_resol = TLG_TUNER_VID_FORMAT_RGB_565;
} else {
pix->pixelformat = V4L2_PIX_FMT_YUYV;
vid_resol = TLG_TUNER_VID_FORMAT_YUV;
}
ret = send_set_req(pd, VIDEO_STREAM_FMT_SEL,
vid_resol, &cmd_status);
/* set the resolution to firmware */
vid_resol = TLG_TUNE_VID_RES_720;
switch (pix->width) {
case 704:
vid_resol = TLG_TUNE_VID_RES_704;
break;
default:
pix->width = 720;
case 720:
break;
}
ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
vid_resol, &cmd_status);
if (ret || cmd_status) {
mutex_unlock(&pd->lock);
return -EBUSY;
}
pix_def->pixelformat = pix->pixelformat; /* save it */
pix->height = (context->tvnormid & V4L2_STD_525_60) ? 480 : 576;
/* Compare with the default setting */
if ((pix_def->width != pix->width)
|| (pix_def->height != pix->height)) {
pix_def->width = pix->width;
pix_def->height = pix->height;
pix_def->bytesperline = pix->width * 2;
pix_def->sizeimage = pix->width * pix->height * 2;
}
*pix = *pix_def;
return 0;
}
static int vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
logs(front);
/* stop VBI here */
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type)
return -EINVAL;
mutex_lock(&pd->lock);
if (pd->file_for_stream == NULL)
pd->file_for_stream = file;
else if (file != pd->file_for_stream) {
mutex_unlock(&pd->lock);
return -EINVAL;
}
pd_vidioc_s_fmt(pd, &f->fmt.pix);
mutex_unlock(&pd->lock);
return 0;
}
static int vidioc_g_fmt_vbi(struct file *file, void *fh,
struct v4l2_format *v4l2_f)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct v4l2_vbi_format *vbi_fmt = &v4l2_f->fmt.vbi;
vbi_fmt->samples_per_line = 720 * 2;
vbi_fmt->sampling_rate = 6750000 * 4;
vbi_fmt->sample_format = V4L2_PIX_FMT_GREY;
vbi_fmt->offset = 64 * 4; /*FIXME: why offset */
if (pd->video_data.context.tvnormid & V4L2_STD_525_60) {
vbi_fmt->start[0] = 10;
vbi_fmt->start[1] = 264;
vbi_fmt->count[0] = V4L_NTSC_VBI_LINES;
vbi_fmt->count[1] = V4L_NTSC_VBI_LINES;
} else {
vbi_fmt->start[0] = 6;
vbi_fmt->start[1] = 314;
vbi_fmt->count[0] = V4L_PAL_VBI_LINES;
vbi_fmt->count[1] = V4L_PAL_VBI_LINES;
}
vbi_fmt->flags = V4L2_VBI_UNSYNC;
logs(front);
return 0;
}
static int set_std(struct poseidon *pd, v4l2_std_id *norm)
{
struct video_data *video = &pd->video_data;
struct vbi_data *vbi = &pd->vbi_data;
struct running_context *context;
struct v4l2_pix_format *pix;
s32 i, ret = 0, cmd_status, param;
int height;
for (i = 0; i < POSEIDON_TVNORMS; i++) {
if (*norm & poseidon_tvnorms[i].v4l2_id) {
param = poseidon_tvnorms[i].tlg_tvnorm;
log("name : %s", poseidon_tvnorms[i].name);
goto found;
}
}
return -EINVAL;
found:
mutex_lock(&pd->lock);
ret = send_set_req(pd, VIDEO_STD_SEL, param, &cmd_status);
if (ret || cmd_status)
goto out;
/* Set vbi size and check the height of the frame */
context = &video->context;
context->tvnormid = poseidon_tvnorms[i].v4l2_id;
if (context->tvnormid & V4L2_STD_525_60) {
vbi->vbi_size = V4L_NTSC_VBI_FRAMESIZE;
height = 480;
} else {
vbi->vbi_size = V4L_PAL_VBI_FRAMESIZE;
height = 576;
}
pix = &context->pix;
if (pix->height != height) {
pix->height = height;
pix->sizeimage = pix->width * pix->height * 2;
}
out:
mutex_unlock(&pd->lock);
return ret;
}
static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *norm)
{
struct front_face *front = fh;
logs(front);
return set_std(front->pd, norm);
}
static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *in)
{
struct front_face *front = fh;
if (in->index < 0 || in->index >= POSEIDON_INPUTS)
return -EINVAL;
strcpy(in->name, pd_inputs[in->index].name);
in->type = V4L2_INPUT_TYPE_TUNER;
/*
* the audio input index mixed with this video input,
* Poseidon only have one audio/video, set to "0"
*/
in->audioset = 0;
in->tuner = 0;
in->std = V4L2_STD_ALL;
in->status = 0;
logs(front);
return 0;
}
static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct running_context *context = &pd->video_data.context;
logs(front);
*i = context->sig_index;
return 0;
}
/* We can support several inputs */
static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
s32 ret, cmd_status;
if (i < 0 || i >= POSEIDON_INPUTS)
return -EINVAL;
ret = send_set_req(pd, SGNL_SRC_SEL,
pd_inputs[i].tlg_src, &cmd_status);
if (ret)
return ret;
pd->video_data.context.sig_index = i;
return 0;
}
static struct poseidon_control *check_control_id(__u32 id)
{
struct poseidon_control *control = &controls[0];
int array_size = ARRAY_SIZE(controls);
for (; control < &controls[array_size]; control++)
if (control->v4l2_ctrl.id == id)
return control;
return NULL;
}
static int vidioc_queryctrl(struct file *file, void *fh,
struct v4l2_queryctrl *a)
{
struct poseidon_control *control = NULL;
control = check_control_id(a->id);
if (!control)
return -EINVAL;
*a = control->v4l2_ctrl;
return 0;
}
static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct poseidon_control *control = NULL;
struct tuner_custom_parameter_s tuner_param;
s32 ret = 0, cmd_status;
control = check_control_id(ctrl->id);
if (!control)
return -EINVAL;
mutex_lock(&pd->lock);
ret = send_get_req(pd, TUNER_CUSTOM_PARAMETER, control->vc_id,
&tuner_param, &cmd_status, sizeof(tuner_param));
mutex_unlock(&pd->lock);
if (ret || cmd_status)
return -1;
ctrl->value = tuner_param.param_value;
return 0;
}
static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
{
struct tuner_custom_parameter_s param = {0};
struct poseidon_control *control = NULL;
struct front_face *front = fh;
struct poseidon *pd = front->pd;
s32 ret = 0, cmd_status, params;
control = check_control_id(a->id);
if (!control)
return -EINVAL;
param.param_value = a->value;
param.param_id = control->vc_id;
params = *(s32 *)&param; /* temp code */
mutex_lock(&pd->lock);
ret = send_set_req(pd, TUNER_CUSTOM_PARAMETER, params, &cmd_status);
ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
mutex_unlock(&pd->lock);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/4);
return ret;
}
/* Audio ioctls */
static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
{
if (0 != a->index)
return -EINVAL;
a->capability = V4L2_AUDCAP_STEREO;
strcpy(a->name, "USB audio in");
/*Poseidon have no AVL function.*/
a->mode = 0;
return 0;
}
static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
{
a->index = 0;
a->capability = V4L2_AUDCAP_STEREO;
strcpy(a->name, "USB audio in");
a->mode = 0;
return 0;
}
static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
{
return (0 == a->index) ? 0 : -EINVAL;
}
/* Tuner ioctls */
static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *tuner)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct tuner_atv_sig_stat_s atv_stat;
s32 count = 5, ret, cmd_status;
int index;
if (0 != tuner->index)
return -EINVAL;
mutex_lock(&pd->lock);
ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
&atv_stat, &cmd_status, sizeof(atv_stat));
while (atv_stat.sig_lock_busy && count-- && !ret) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ);
ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
&atv_stat, &cmd_status, sizeof(atv_stat));
}
mutex_unlock(&pd->lock);
if (debug_mode)
log("P:%d,S:%d", atv_stat.sig_present, atv_stat.sig_strength);
if (ret || cmd_status)
tuner->signal = 0;
else if (atv_stat.sig_present && !atv_stat.sig_strength)
tuner->signal = 0xFFFF;
else
tuner->signal = (atv_stat.sig_strength * 255 / 10) << 8;
strcpy(tuner->name, "Telegent Systems");
tuner->type = V4L2_TUNER_ANALOG_TV;
tuner->rangelow = TUNER_FREQ_MIN / 62500;
tuner->rangehigh = TUNER_FREQ_MAX / 62500;
tuner->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
index = pd->video_data.context.audio_idx;
tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub;
tuner->audmode = pd_audio_modes[index].v4l2_audio_mode;
tuner->afc = 0;
logs(front);
return 0;
}
static int pd_vidioc_s_tuner(struct poseidon *pd, int index)
{
s32 ret = 0, cmd_status, param, audiomode;
mutex_lock(&pd->lock);
param = pd_audio_modes[index].tlg_audio_mode;
ret = send_set_req(pd, TUNER_AUD_MODE, param, &cmd_status);
audiomode = get_audio_std(pd->video_data.context.tvnormid);
ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode,
&cmd_status);
if (!ret)
pd->video_data.context.audio_idx = index;
mutex_unlock(&pd->lock);
return ret;
}
static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *a)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
int index;
if (0 != a->index)
return -EINVAL;
logs(front);
for (index = 0; index < POSEIDON_AUDIOMODS; index++)
if (a->audmode == pd_audio_modes[index].v4l2_audio_mode)
return pd_vidioc_s_tuner(pd, index);
return -EINVAL;
}
static int vidioc_g_frequency(struct file *file, void *fh,
struct v4l2_frequency *freq)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct running_context *context = &pd->video_data.context;
if (0 != freq->tuner)
return -EINVAL;
freq->frequency = context->freq;
freq->type = V4L2_TUNER_ANALOG_TV;
return 0;
}
static int set_frequency(struct poseidon *pd, __u32 frequency)
{
s32 ret = 0, param, cmd_status;
struct running_context *context = &pd->video_data.context;
param = frequency * 62500 / 1000;
if (param < TUNER_FREQ_MIN/1000 || param > TUNER_FREQ_MAX / 1000)
return -EINVAL;
mutex_lock(&pd->lock);
ret = send_set_req(pd, TUNE_FREQ_SELECT, param, &cmd_status);
ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
msleep(250); /* wait for a while until the hardware is ready. */
context->freq = frequency;
mutex_unlock(&pd->lock);
return ret;
}
static int vidioc_s_frequency(struct file *file, void *fh,
struct v4l2_frequency *freq)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
logs(front);
#ifdef CONFIG_PM
pd->pm_suspend = pm_video_suspend;
pd->pm_resume = pm_video_resume;
#endif
return set_frequency(pd, freq->frequency);
}
static int vidioc_reqbufs(struct file *file, void *fh,
struct v4l2_requestbuffers *b)
{
struct front_face *front = file->private_data;
logs(front);
return videobuf_reqbufs(&front->q, b);
}
static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
{
struct front_face *front = file->private_data;
logs(front);
return videobuf_querybuf(&front->q, b);
}
static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
{
struct front_face *front = file->private_data;
return videobuf_qbuf(&front->q, b);
}
static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
{
struct front_face *front = file->private_data;
return videobuf_dqbuf(&front->q, b, file->f_flags & O_NONBLOCK);
}
/* Just stop the URBs, do not free the URBs */
static int usb_transfer_stop(struct video_data *video)
{
if (video->is_streaming) {
int i;
s32 cmd_status;
struct poseidon *pd = video->pd;
video->is_streaming = 0;
for (i = 0; i < SBUF_NUM; ++i) {
if (video->urb_array[i])
usb_kill_urb(video->urb_array[i]);
}
send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
&cmd_status);
}
return 0;
}
int stop_all_video_stream(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
struct vbi_data *vbi = &pd->vbi_data;
mutex_lock(&pd->lock);
if (video->is_streaming) {
struct front_face *front = video->front;
/* stop the URBs */
usb_transfer_stop(video);
free_all_urb(video);
/* stop the host side of VIDEO */
videobuf_stop(&front->q);
videobuf_mmap_free(&front->q);
/* stop the host side of VBI */
front = vbi->front;
if (front) {
videobuf_stop(&front->q);
videobuf_mmap_free(&front->q);
}
}
mutex_unlock(&pd->lock);
return 0;
}
/*
* The bubbles can seriously damage the video's quality,
* though it occurs in very rare situation.
*/
static void iso_bubble_handler(struct work_struct *w)
{
struct video_data *video;
struct poseidon *pd;
video = container_of(w, struct video_data, bubble_work);
pd = video->pd;
mutex_lock(&pd->lock);
usb_transfer_stop(video);
msleep(500);
start_video_stream(pd);
mutex_unlock(&pd->lock);
}
static int vidioc_streamon(struct file *file, void *fh,
enum v4l2_buf_type type)
{
struct front_face *front = fh;
logs(front);
if (unlikely(type != front->type))
return -EINVAL;
return videobuf_streamon(&front->q);
}
static int vidioc_streamoff(struct file *file, void *fh,
enum v4l2_buf_type type)
{
struct front_face *front = file->private_data;
logs(front);
if (unlikely(type != front->type))
return -EINVAL;
return videobuf_streamoff(&front->q);
}
/* Set the firmware's default values : need altersetting */
static int pd_video_checkmode(struct poseidon *pd)
{
s32 ret = 0, cmd_status, audiomode;
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/2);
/* choose the altersetting */
ret = usb_set_interface(pd->udev, 0,
(pd->cur_transfer_mode ?
ISO_3K_BULK_ALTERNATE_IFACE :
BULK_ALTERNATE_IFACE));
if (ret < 0)
goto error;
/* set default parameters for PAL-D , with the VBI enabled*/
ret = set_tuner_mode(pd, TLG_MODE_ANALOG_TV);
ret |= send_set_req(pd, SGNL_SRC_SEL,
TLG_SIG_SRC_ANTENNA, &cmd_status);
ret |= send_set_req(pd, VIDEO_STD_SEL,
TLG_TUNE_VSTD_PAL_D, &cmd_status);
ret |= send_set_req(pd, VIDEO_STREAM_FMT_SEL,
TLG_TUNER_VID_FORMAT_YUV, &cmd_status);
ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
TLG_TUNE_VID_RES_720, &cmd_status);
ret |= send_set_req(pd, TUNE_FREQ_SELECT, TUNER_FREQ_MIN, &cmd_status);
ret |= send_set_req(pd, VBI_DATA_SEL, 1, &cmd_status);/* enable vbi */
/* set the audio */
audiomode = get_audio_std(pd->video_data.context.tvnormid);
ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, &cmd_status);
ret |= send_set_req(pd, TUNER_AUD_MODE,
TLG_TUNE_TVAUDIO_MODE_STEREO, &cmd_status);
ret |= send_set_req(pd, AUDIO_SAMPLE_RATE_SEL,
ATV_AUDIO_RATE_48K, &cmd_status);
error:
return ret;
}
#ifdef CONFIG_PM
static int pm_video_suspend(struct poseidon *pd)
{
/* stop audio */
pm_alsa_suspend(pd);
/* stop and free all the URBs */
usb_transfer_stop(&pd->video_data);
free_all_urb(&pd->video_data);
/* reset the interface */
usb_set_interface(pd->udev, 0, 0);
msleep(300);
return 0;
}
static int restore_v4l2_context(struct poseidon *pd,
struct running_context *context)
{
struct front_face *front = pd->video_data.front;
pd_video_checkmode(pd);
set_std(pd, &context->tvnormid);
vidioc_s_input(NULL, front, context->sig_index);
pd_vidioc_s_tuner(pd, context->audio_idx);
pd_vidioc_s_fmt(pd, &context->pix);
set_frequency(pd, context->freq);
return 0;
}
static int pm_video_resume(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
/* resume the video */
/* [1] restore the origin V4L2 parameters */
restore_v4l2_context(pd, &video->context);
/* [2] initiate video copy variables */
if (video->front->curr_frame)
init_copy(video, 0);
/* [3] fire urbs */
start_video_stream(pd);
/* resume the audio */
pm_alsa_resume(pd);
return 0;
}
#endif
void set_debug_mode(struct video_device *vfd, int debug_mode)
{
vfd->debug = 0;
if (debug_mode & 0x1)
vfd->debug = V4L2_DEBUG_IOCTL;
if (debug_mode & 0x2)
vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
}
static void init_video_context(struct running_context *context)
{
context->sig_index = 0;
context->audio_idx = 1; /* stereo */
context->tvnormid = V4L2_STD_PAL_D;
context->pix = (struct v4l2_pix_format) {
.width = 720,
.height = 576,
.pixelformat = V4L2_PIX_FMT_YUYV,
.field = V4L2_FIELD_INTERLACED,
.bytesperline = 720 * 2,
.sizeimage = 720 * 576 * 2,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.priv = 0
};
}
static int pd_video_open(struct file *file)
{
struct video_device *vfd = video_devdata(file);
struct poseidon *pd = video_get_drvdata(vfd);
struct front_face *front = NULL;
int ret = -ENOMEM;
mutex_lock(&pd->lock);
usb_autopm_get_interface(pd->interface);
if (vfd->vfl_type == VFL_TYPE_GRABBER
&& !(pd->state & POSEIDON_STATE_ANALOG)) {
front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
if (!front)
goto out;
pd->cur_transfer_mode = usb_transfer_mode;/* bulk or iso */
init_video_context(&pd->video_data.context);
ret = pd_video_checkmode(pd);
if (ret < 0) {
kfree(front);
ret = -1;
goto out;
}
pd->state |= POSEIDON_STATE_ANALOG;
front->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
pd->video_data.users++;
set_debug_mode(vfd, debug_mode);
videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
NULL, &front->queue_lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,/* video is interlacd */
sizeof(struct videobuf_buffer),/*it's enough*/
front);
} else if (vfd->vfl_type == VFL_TYPE_VBI
&& !(pd->state & POSEIDON_STATE_VBI)) {
front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
if (!front)
goto out;
pd->state |= POSEIDON_STATE_VBI;
front->type = V4L2_BUF_TYPE_VBI_CAPTURE;
pd->vbi_data.front = front;
pd->vbi_data.users++;
videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
NULL, &front->queue_lock,
V4L2_BUF_TYPE_VBI_CAPTURE,
V4L2_FIELD_NONE, /* vbi is NONE mode */
sizeof(struct videobuf_buffer),
front);
} else {
/* maybe add FM support here */
log("other ");
ret = -EINVAL;
goto out;
}
front->pd = pd;
front->curr_frame = NULL;
INIT_LIST_HEAD(&front->active);
spin_lock_init(&front->queue_lock);
file->private_data = front;
kref_get(&pd->kref);
mutex_unlock(&pd->lock);
return 0;
out:
usb_autopm_put_interface(pd->interface);
mutex_unlock(&pd->lock);
return ret;
}
static int pd_video_release(struct file *file)
{
struct front_face *front = file->private_data;
struct poseidon *pd = front->pd;
s32 cmd_status = 0;
logs(front);
mutex_lock(&pd->lock);
if (front->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
pd->state &= ~POSEIDON_STATE_ANALOG;
/* stop the device, and free the URBs */
usb_transfer_stop(&pd->video_data);
free_all_urb(&pd->video_data);
/* stop the firmware */
send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
&cmd_status);
pd->file_for_stream = NULL;
pd->video_data.users--;
} else if (front->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
pd->state &= ~POSEIDON_STATE_VBI;
pd->vbi_data.front = NULL;
pd->vbi_data.users--;
}
videobuf_stop(&front->q);
videobuf_mmap_free(&front->q);
usb_autopm_put_interface(pd->interface);
mutex_unlock(&pd->lock);
kfree(front);
file->private_data = NULL;
kref_put(&pd->kref, poseidon_delete);
return 0;
}
static int pd_video_mmap(struct file *file, struct vm_area_struct *vma)
{
struct front_face *front = file->private_data;
return videobuf_mmap_mapper(&front->q, vma);
}
static unsigned int pd_video_poll(struct file *file, poll_table *table)
{
struct front_face *front = file->private_data;
return videobuf_poll_stream(file, &front->q, table);
}
static ssize_t pd_video_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct front_face *front = file->private_data;
return videobuf_read_stream(&front->q, buffer, count, ppos,
0, file->f_flags & O_NONBLOCK);
}
/* This struct works for both VIDEO and VBI */
static const struct v4l2_file_operations pd_video_fops = {
.owner = THIS_MODULE,
.open = pd_video_open,
.release = pd_video_release,
.read = pd_video_read,
.poll = pd_video_poll,
.mmap = pd_video_mmap,
.ioctl = video_ioctl2, /* maybe changed in future */
};
static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
/* Video format */
.vidioc_g_fmt_vid_cap = vidioc_g_fmt,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt,
.vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi, /* VBI */
.vidioc_try_fmt_vid_cap = vidioc_try_fmt,
/* Input */
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_enum_input = vidioc_enum_input,
/* Audio ioctls */
.vidioc_enumaudio = vidioc_enumaudio,
.vidioc_g_audio = vidioc_g_audio,
.vidioc_s_audio = vidioc_s_audio,
/* Tuner ioctls */
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_s_std = vidioc_s_std,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
/* Buffer handlers */
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
/* Stream on/off */
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
/* Control handling */
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
};
static struct video_device pd_video_template = {
.name = "Telegent-Video",
.fops = &pd_video_fops,
.minor = -1,
.release = video_device_release,
.tvnorms = V4L2_STD_ALL,
.ioctl_ops = &pd_video_ioctl_ops,
};
struct video_device *vdev_init(struct poseidon *pd, struct video_device *tmp)
{
struct video_device *vfd;
vfd = video_device_alloc();
if (vfd == NULL)
return NULL;
*vfd = *tmp;
vfd->minor = -1;
vfd->v4l2_dev = &pd->v4l2_dev;
/*vfd->parent = &(pd->udev->dev); */
vfd->release = video_device_release;
video_set_drvdata(vfd, pd);
return vfd;
}
void destroy_video_device(struct video_device **v_dev)
{
struct video_device *dev = *v_dev;
if (dev == NULL)
return;
if (video_is_registered(dev))
video_unregister_device(dev);
else
video_device_release(dev);
*v_dev = NULL;
}
void pd_video_exit(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
struct vbi_data *vbi = &pd->vbi_data;
destroy_video_device(&video->v_dev);
destroy_video_device(&vbi->v_dev);
log();
}
int pd_video_init(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
struct vbi_data *vbi = &pd->vbi_data;
int ret = -ENOMEM;
video->v_dev = vdev_init(pd, &pd_video_template);
if (video->v_dev == NULL)
goto out;
ret = video_register_device(video->v_dev, VFL_TYPE_GRABBER, -1);
if (ret != 0)
goto out;
/* VBI uses the same template as video */
vbi->v_dev = vdev_init(pd, &pd_video_template);
if (vbi->v_dev == NULL) {
ret = -ENOMEM;
goto out;
}
ret = video_register_device(vbi->v_dev, VFL_TYPE_VBI, -1);
if (ret != 0)
goto out;
log("register VIDEO/VBI devices");
return 0;
out:
log("VIDEO/VBI devices register failed, : %d", ret);
pd_video_exit(pd);
return ret;
}
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