#include <linux/i2c.h>
#include <linux/types.h>
#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-chip-ident.h>
-#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-i2c-drv.h>
#include <linux/init.h>
#include <linux/crc32.h>
#define MPEG_TOTAL_TARGET_BITRATE_MAX 27000
#define MPEG_PID_MAX ((1 << 14) - 1)
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {0x20, I2C_CLIENT_END};
-
-I2C_CLIENT_INSMOD;
MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
MODULE_AUTHOR("Andrew de Quincey");
};
struct saa6752hs_state {
+ struct v4l2_subdev sd;
int chip;
u32 revision;
int has_ac3;
SAA6752HS_COMMAND_MAX
};
+static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa6752hs_state, sd);
+}
+
/* ---------------------------------------------------------------------- */
static u8 PAT[] = {
return 0;
}
-static void saa6752hs_set_subsampling(struct i2c_client *client,
- struct v4l2_format *f)
-{
- struct saa6752hs_state *h = i2c_get_clientdata(client);
- int dist_352, dist_480, dist_720;
-
- /*
- FIXME: translate and round width/height into EMPRESS
- subsample type:
- type | PAL | NTSC
- ---------------------------
- SIF | 352x288 | 352x240
- 1/2 D1 | 352x576 | 352x480
- 2/3 D1 | 480x576 | 480x480
- D1 | 720x576 | 720x480
- */
-
- dist_352 = abs(f->fmt.pix.width - 352);
- dist_480 = abs(f->fmt.pix.width - 480);
- dist_720 = abs(f->fmt.pix.width - 720);
- if (dist_720 < dist_480) {
- f->fmt.pix.width = 720;
- f->fmt.pix.height = 576;
- h->video_format = SAA6752HS_VF_D1;
- }
- else if (dist_480 < dist_352) {
- f->fmt.pix.width = 480;
- f->fmt.pix.height = 576;
- h->video_format = SAA6752HS_VF_2_3_D1;
- }
- else {
- f->fmt.pix.width = 352;
- if (abs(f->fmt.pix.height - 576) <
- abs(f->fmt.pix.height - 288)) {
- f->fmt.pix.height = 576;
- h->video_format = SAA6752HS_VF_1_2_D1;
- }
- else {
- f->fmt.pix.height = 288;
- h->video_format = SAA6752HS_VF_SIF;
- }
+static int get_ctrl(int has_ac3, struct saa6752hs_mpeg_params *params,
+ struct v4l2_ext_control *ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PMT:
+ ctrl->value = params->ts_pid_pmt;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+ ctrl->value = params->ts_pid_audio;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+ ctrl->value = params->ts_pid_video;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PCR:
+ ctrl->value = params->ts_pid_pcr;
+ break;
+ case V4L2_CID_MPEG_AUDIO_ENCODING:
+ ctrl->value = params->au_encoding;
+ break;
+ case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+ ctrl->value = params->au_l2_bitrate;
+ break;
+ case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
+ if (!has_ac3)
+ return -EINVAL;
+ ctrl->value = params->au_ac3_bitrate;
+ break;
+ case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+ ctrl->value = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ ctrl->value = params->vi_aspect;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ ctrl->value = params->vi_bitrate * 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+ ctrl->value = params->vi_bitrate_peak * 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+ ctrl->value = params->vi_bitrate_mode;
+ break;
+ default:
+ return -EINVAL;
}
+ return 0;
}
-
static int handle_ctrl(int has_ac3, struct saa6752hs_mpeg_params *params,
- struct v4l2_ext_control *ctrl, unsigned int cmd)
+ struct v4l2_ext_control *ctrl, int set)
{
int old = 0, new;
- int set = (cmd == VIDIOC_S_EXT_CTRLS);
new = ctrl->value;
switch (ctrl->id) {
- case V4L2_CID_MPEG_STREAM_TYPE:
- old = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
- if (set && new != old)
- return -ERANGE;
- new = old;
- break;
- case V4L2_CID_MPEG_STREAM_PID_PMT:
- old = params->ts_pid_pmt;
- if (set && new > MPEG_PID_MAX)
- return -ERANGE;
- if (new > MPEG_PID_MAX)
- new = MPEG_PID_MAX;
- params->ts_pid_pmt = new;
- break;
- case V4L2_CID_MPEG_STREAM_PID_AUDIO:
- old = params->ts_pid_audio;
- if (set && new > MPEG_PID_MAX)
- return -ERANGE;
- if (new > MPEG_PID_MAX)
- new = MPEG_PID_MAX;
- params->ts_pid_audio = new;
- break;
- case V4L2_CID_MPEG_STREAM_PID_VIDEO:
- old = params->ts_pid_video;
- if (set && new > MPEG_PID_MAX)
- return -ERANGE;
- if (new > MPEG_PID_MAX)
- new = MPEG_PID_MAX;
- params->ts_pid_video = new;
- break;
- case V4L2_CID_MPEG_STREAM_PID_PCR:
- old = params->ts_pid_pcr;
- if (set && new > MPEG_PID_MAX)
- return -ERANGE;
- if (new > MPEG_PID_MAX)
- new = MPEG_PID_MAX;
- params->ts_pid_pcr = new;
- break;
- case V4L2_CID_MPEG_AUDIO_ENCODING:
- old = params->au_encoding;
- if (set && new != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 &&
- (!has_ac3 || new != V4L2_MPEG_AUDIO_ENCODING_AC3))
- return -ERANGE;
- new = old;
- break;
- case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
- old = params->au_l2_bitrate;
- if (set && new != V4L2_MPEG_AUDIO_L2_BITRATE_256K &&
- new != V4L2_MPEG_AUDIO_L2_BITRATE_384K)
- return -ERANGE;
- if (new <= V4L2_MPEG_AUDIO_L2_BITRATE_256K)
- new = V4L2_MPEG_AUDIO_L2_BITRATE_256K;
- else
- new = V4L2_MPEG_AUDIO_L2_BITRATE_384K;
- params->au_l2_bitrate = new;
- break;
- case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
- if (!has_ac3)
- return -EINVAL;
- old = params->au_ac3_bitrate;
- if (set && new != V4L2_MPEG_AUDIO_AC3_BITRATE_256K &&
- new != V4L2_MPEG_AUDIO_AC3_BITRATE_384K)
- return -ERANGE;
- if (new <= V4L2_MPEG_AUDIO_AC3_BITRATE_256K)
- new = V4L2_MPEG_AUDIO_AC3_BITRATE_256K;
- else
- new = V4L2_MPEG_AUDIO_AC3_BITRATE_384K;
- params->au_ac3_bitrate = new;
- break;
- case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
- old = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
- if (set && new != old)
- return -ERANGE;
- new = old;
- break;
- case V4L2_CID_MPEG_VIDEO_ENCODING:
- old = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
- if (set && new != old)
- return -ERANGE;
- new = old;
- break;
- case V4L2_CID_MPEG_VIDEO_ASPECT:
- old = params->vi_aspect;
- if (set && new != V4L2_MPEG_VIDEO_ASPECT_16x9 &&
- new != V4L2_MPEG_VIDEO_ASPECT_4x3)
- return -ERANGE;
- if (new != V4L2_MPEG_VIDEO_ASPECT_16x9)
- new = V4L2_MPEG_VIDEO_ASPECT_4x3;
- params->vi_aspect = new;
- break;
- case V4L2_CID_MPEG_VIDEO_BITRATE:
- old = params->vi_bitrate * 1000;
- new = 1000 * (new / 1000);
- if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
- return -ERANGE;
- if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
- new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
- params->vi_bitrate = new / 1000;
- break;
- case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
- old = params->vi_bitrate_peak * 1000;
- new = 1000 * (new / 1000);
- if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
- return -ERANGE;
- if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
- new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
- params->vi_bitrate_peak = new / 1000;
- break;
- case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
- old = params->vi_bitrate_mode;
- params->vi_bitrate_mode = new;
- break;
- default:
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ old = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PMT:
+ old = params->ts_pid_pmt;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_pmt = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+ old = params->ts_pid_audio;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_audio = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+ old = params->ts_pid_video;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_video = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PCR:
+ old = params->ts_pid_pcr;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_pcr = new;
+ break;
+ case V4L2_CID_MPEG_AUDIO_ENCODING:
+ old = params->au_encoding;
+ if (set && new != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 &&
+ (!has_ac3 || new != V4L2_MPEG_AUDIO_ENCODING_AC3))
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+ old = params->au_l2_bitrate;
+ if (set && new != V4L2_MPEG_AUDIO_L2_BITRATE_256K &&
+ new != V4L2_MPEG_AUDIO_L2_BITRATE_384K)
+ return -ERANGE;
+ if (new <= V4L2_MPEG_AUDIO_L2_BITRATE_256K)
+ new = V4L2_MPEG_AUDIO_L2_BITRATE_256K;
+ else
+ new = V4L2_MPEG_AUDIO_L2_BITRATE_384K;
+ params->au_l2_bitrate = new;
+ break;
+ case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
+ if (!has_ac3)
return -EINVAL;
+ old = params->au_ac3_bitrate;
+ if (set && new != V4L2_MPEG_AUDIO_AC3_BITRATE_256K &&
+ new != V4L2_MPEG_AUDIO_AC3_BITRATE_384K)
+ return -ERANGE;
+ if (new <= V4L2_MPEG_AUDIO_AC3_BITRATE_256K)
+ new = V4L2_MPEG_AUDIO_AC3_BITRATE_256K;
+ else
+ new = V4L2_MPEG_AUDIO_AC3_BITRATE_384K;
+ params->au_ac3_bitrate = new;
+ break;
+ case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+ old = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ old = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ old = params->vi_aspect;
+ if (set && new != V4L2_MPEG_VIDEO_ASPECT_16x9 &&
+ new != V4L2_MPEG_VIDEO_ASPECT_4x3)
+ return -ERANGE;
+ if (new != V4L2_MPEG_VIDEO_ASPECT_16x9)
+ new = V4L2_MPEG_VIDEO_ASPECT_4x3;
+ params->vi_aspect = new;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ old = params->vi_bitrate * 1000;
+ new = 1000 * (new / 1000);
+ if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ return -ERANGE;
+ if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
+ params->vi_bitrate = new / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+ old = params->vi_bitrate_peak * 1000;
+ new = 1000 * (new / 1000);
+ if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ return -ERANGE;
+ if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
+ params->vi_bitrate_peak = new / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+ old = params->vi_bitrate_mode;
+ params->vi_bitrate_mode = new;
+ break;
+ default:
+ return -EINVAL;
}
- if (cmd == VIDIOC_G_EXT_CTRLS)
- ctrl->value = old;
- else
- ctrl->value = new;
+ ctrl->value = new;
return 0;
}
-static int saa6752hs_qctrl(struct saa6752hs_state *h,
- struct v4l2_queryctrl *qctrl)
+
+static int saa6752hs_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qctrl)
{
+ struct saa6752hs_state *h = to_state(sd);
struct saa6752hs_mpeg_params *params = &h->params;
int err;
V4L2_MPEG_VIDEO_ASPECT_4x3);
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
- err = v4l2_ctrl_query_fill_std(qctrl);
+ err = v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
if (err == 0 &&
params->vi_bitrate_mode ==
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+ return v4l2_ctrl_query_fill(qctrl,
+ V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
+ V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
+ V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
case V4L2_CID_MPEG_VIDEO_BITRATE:
+ return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
case V4L2_CID_MPEG_STREAM_PID_PMT:
+ return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16);
case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+ return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260);
case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+ return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256);
case V4L2_CID_MPEG_STREAM_PID_PCR:
- return v4l2_ctrl_query_fill_std(qctrl);
+ return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259);
default:
break;
return -EINVAL;
}
-static int saa6752hs_qmenu(struct saa6752hs_state *h,
- struct v4l2_querymenu *qmenu)
+static int saa6752hs_querymenu(struct v4l2_subdev *sd, struct v4l2_querymenu *qmenu)
{
static const u32 mpeg_audio_encoding[] = {
V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
V4L2_MPEG_AUDIO_AC3_BITRATE_384K,
V4L2_CTRL_MENU_IDS_END
};
+ struct saa6752hs_state *h = to_state(sd);
struct v4l2_queryctrl qctrl;
int err;
qctrl.id = qmenu->id;
- err = saa6752hs_qctrl(h, &qctrl);
+ err = saa6752hs_queryctrl(sd, &qctrl);
if (err)
return err;
switch (qmenu->id) {
return v4l2_ctrl_query_menu(qmenu, &qctrl, NULL);
}
-static int saa6752hs_init(struct i2c_client *client, u32 leading_null_bytes)
+static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes)
{
unsigned char buf[9], buf2[4];
- struct saa6752hs_state *h;
+ struct saa6752hs_state *h = to_state(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
unsigned size;
u32 crc;
unsigned char localPAT[256];
unsigned char localPMT[256];
- h = i2c_get_clientdata(client);
-
/* Set video format - must be done first as it resets other settings */
set_reg8(client, 0x41, h->video_format);
buf[3] = 0x82;
buf[4] = 0xB0;
buf[5] = buf2[0];
- switch(h->params.vi_aspect) {
+ switch (h->params.vi_aspect) {
case V4L2_MPEG_VIDEO_ASPECT_16x9:
buf[6] = buf2[1] | 0x40;
break;
default:
buf[6] = buf2[1] & 0xBF;
break;
- break;
}
buf[7] = buf2[2];
buf[8] = buf2[3];
return 0;
}
-static int
-saa6752hs_command(struct i2c_client *client, unsigned int cmd, void *arg)
+static int saa6752hs_do_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls, int set)
{
- struct saa6752hs_state *h = i2c_get_clientdata(client);
- struct v4l2_ext_controls *ctrls = arg;
+ struct saa6752hs_state *h = to_state(sd);
struct saa6752hs_mpeg_params params;
- int err = 0;
int i;
- switch (cmd) {
- case VIDIOC_INT_INIT:
- /* apply settings and start encoder */
- saa6752hs_init(client, *(u32 *)arg);
- break;
- case VIDIOC_S_EXT_CTRLS:
- if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
- return -EINVAL;
- /* fall through */
- case VIDIOC_TRY_EXT_CTRLS:
- case VIDIOC_G_EXT_CTRLS:
- if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
- return -EINVAL;
- params = h->params;
- for (i = 0; i < ctrls->count; i++) {
- err = handle_ctrl(h->has_ac3, ¶ms, ctrls->controls + i, cmd);
- if (err) {
- ctrls->error_idx = i;
- return err;
- }
+ if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
+ return -EINVAL;
+
+ params = h->params;
+ for (i = 0; i < ctrls->count; i++) {
+ int err = handle_ctrl(h->has_ac3, ¶ms, ctrls->controls + i, set);
+
+ if (err) {
+ ctrls->error_idx = i;
+ return err;
}
- h->params = params;
- break;
- case VIDIOC_QUERYCTRL:
- return saa6752hs_qctrl(h, arg);
- case VIDIOC_QUERYMENU:
- return saa6752hs_qmenu(h, arg);
- case VIDIOC_G_FMT:
- {
- struct v4l2_format *f = arg;
-
- if (h->video_format == SAA6752HS_VF_UNKNOWN)
- h->video_format = SAA6752HS_VF_D1;
- f->fmt.pix.width =
- v4l2_format_table[h->video_format].fmt.pix.width;
- f->fmt.pix.height =
- v4l2_format_table[h->video_format].fmt.pix.height;
- break ;
}
- case VIDIOC_S_FMT:
- {
- struct v4l2_format *f = arg;
+ if (set)
+ h->params = params;
+ return 0;
+}
- saa6752hs_set_subsampling(client, f);
- break;
+static int saa6752hs_s_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls)
+{
+ return saa6752hs_do_ext_ctrls(sd, ctrls, 1);
+}
+
+static int saa6752hs_try_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls)
+{
+ return saa6752hs_do_ext_ctrls(sd, ctrls, 0);
+}
+
+static int saa6752hs_g_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls)
+{
+ struct saa6752hs_state *h = to_state(sd);
+ int i;
+
+ if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
+ return -EINVAL;
+
+ for (i = 0; i < ctrls->count; i++) {
+ int err = get_ctrl(h->has_ac3, &h->params, ctrls->controls + i);
+
+ if (err) {
+ ctrls->error_idx = i;
+ return err;
+ }
}
- case VIDIOC_S_STD:
- h->standard = *((v4l2_std_id *) arg);
- break;
+ return 0;
+}
- case VIDIOC_DBG_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client,
- arg, h->chip, h->revision);
+static int saa6752hs_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct saa6752hs_state *h = to_state(sd);
- default:
- /* nothing */
- break;
+ if (h->video_format == SAA6752HS_VF_UNKNOWN)
+ h->video_format = SAA6752HS_VF_D1;
+ f->fmt.pix.width =
+ v4l2_format_table[h->video_format].fmt.pix.width;
+ f->fmt.pix.height =
+ v4l2_format_table[h->video_format].fmt.pix.height;
+ return 0;
+}
+
+static int saa6752hs_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct saa6752hs_state *h = to_state(sd);
+ int dist_352, dist_480, dist_720;
+
+ /*
+ FIXME: translate and round width/height into EMPRESS
+ subsample type:
+
+ type | PAL | NTSC
+ ---------------------------
+ SIF | 352x288 | 352x240
+ 1/2 D1 | 352x576 | 352x480
+ 2/3 D1 | 480x576 | 480x480
+ D1 | 720x576 | 720x480
+ */
+
+ dist_352 = abs(f->fmt.pix.width - 352);
+ dist_480 = abs(f->fmt.pix.width - 480);
+ dist_720 = abs(f->fmt.pix.width - 720);
+ if (dist_720 < dist_480) {
+ f->fmt.pix.width = 720;
+ f->fmt.pix.height = 576;
+ h->video_format = SAA6752HS_VF_D1;
+ } else if (dist_480 < dist_352) {
+ f->fmt.pix.width = 480;
+ f->fmt.pix.height = 576;
+ h->video_format = SAA6752HS_VF_2_3_D1;
+ } else {
+ f->fmt.pix.width = 352;
+ if (abs(f->fmt.pix.height - 576) <
+ abs(f->fmt.pix.height - 288)) {
+ f->fmt.pix.height = 576;
+ h->video_format = SAA6752HS_VF_1_2_D1;
+ } else {
+ f->fmt.pix.height = 288;
+ h->video_format = SAA6752HS_VF_SIF;
+ }
}
+ return 0;
+}
+
+static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct saa6752hs_state *h = to_state(sd);
+
+ h->standard = std;
+ return 0;
+}
- return err;
+static int saa6752hs_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct saa6752hs_state *h = to_state(sd);
+
+ return v4l2_chip_ident_i2c_client(client,
+ chip, h->chip, h->revision);
}
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops saa6752hs_core_ops = {
+ .g_chip_ident = saa6752hs_g_chip_ident,
+ .init = saa6752hs_init,
+ .queryctrl = saa6752hs_queryctrl,
+ .querymenu = saa6752hs_querymenu,
+ .g_ext_ctrls = saa6752hs_g_ext_ctrls,
+ .s_ext_ctrls = saa6752hs_s_ext_ctrls,
+ .try_ext_ctrls = saa6752hs_try_ext_ctrls,
+};
+
+static const struct v4l2_subdev_tuner_ops saa6752hs_tuner_ops = {
+ .s_std = saa6752hs_s_std,
+};
+
+static const struct v4l2_subdev_video_ops saa6752hs_video_ops = {
+ .s_fmt = saa6752hs_s_fmt,
+ .g_fmt = saa6752hs_g_fmt,
+};
+
+static const struct v4l2_subdev_ops saa6752hs_ops = {
+ .core = &saa6752hs_core_ops,
+ .tuner = &saa6752hs_tuner_ops,
+ .video = &saa6752hs_video_ops,
+};
+
static int saa6752hs_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
struct saa6752hs_state *h = kzalloc(sizeof(*h), GFP_KERNEL);
+ struct v4l2_subdev *sd;
u8 addr = 0x13;
u8 data[12];
client->addr << 1, client->adapter->name);
if (h == NULL)
return -ENOMEM;
+ sd = &h->sd;
+ v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops);
i2c_master_send(client, &addr, 1);
i2c_master_recv(client, data, sizeof(data));
}
h->params = param_defaults;
h->standard = 0; /* Assume 625 input lines */
-
- i2c_set_clientdata(client, h);
return 0;
}
static int saa6752hs_remove(struct i2c_client *client)
{
- kfree(i2c_get_clientdata(client));
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_state(sd));
return 0;
}
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "saa6752hs",
- .driverid = I2C_DRIVERID_SAA6752HS,
- .command = saa6752hs_command,
.probe = saa6752hs_probe,
.remove = saa6752hs_remove,
.id_table = saa6752hs_id,
projects / linux-2.6-omap-h63xx.git / blobdiff