#include "ivtv-queue.h"
#include "ivtv-vbi.h"
-static void ivtv_set_vps(struct ivtv *itv, int enabled, u8 vps1, u8 vps2, u8 vps3,
- u8 vps4, u8 vps5)
+static void ivtv_set_vps(struct ivtv *itv, int enabled)
{
struct v4l2_sliced_vbi_data data;
data.id = V4L2_SLICED_VPS;
data.field = 0;
data.line = enabled ? 16 : 0;
- data.data[4] = vps1;
- data.data[10] = vps2;
- data.data[11] = vps3;
- data.data[12] = vps4;
- data.data[13] = vps5;
+ data.data[2] = itv->vbi.vps_payload.data[0];
+ data.data[8] = itv->vbi.vps_payload.data[1];
+ data.data[9] = itv->vbi.vps_payload.data[2];
+ data.data[10] = itv->vbi.vps_payload.data[3];
+ data.data[11] = itv->vbi.vps_payload.data[4];
ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
}
-static void ivtv_set_cc(struct ivtv *itv, int mode, u8 cc1, u8 cc2, u8 cc3, u8 cc4)
+static void ivtv_set_cc(struct ivtv *itv, int mode, const struct vbi_cc *cc)
{
struct v4l2_sliced_vbi_data data;
data.id = V4L2_SLICED_CAPTION_525;
data.field = 0;
data.line = (mode & 1) ? 21 : 0;
- data.data[0] = cc1;
- data.data[1] = cc2;
+ data.data[0] = cc->odd[0];
+ data.data[1] = cc->odd[1];
ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
data.field = 1;
data.line = (mode & 2) ? 21 : 0;
- data.data[0] = cc3;
- data.data[1] = cc4;
+ data.data[0] = cc->even[0];
+ data.data[1] = cc->even[1];
ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
}
return c & 1;
}
-static void passthrough_vbi_data(struct ivtv *itv, int cnt)
+void ivtv_write_vbi(struct ivtv *itv, const struct v4l2_sliced_vbi_data *sliced, size_t cnt)
{
- int wss = 0;
- u8 cc[4] = { 0x80, 0x80, 0x80, 0x80 };
- u8 vps[13];
+ struct vbi_info *vi = &itv->vbi;
+ struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
int found_cc = 0;
- int found_wss = 0;
- int found_vps = 0;
- int cc_pos = itv->vbi.cc_pos;
- int i;
+ size_t i;
for (i = 0; i < cnt; i++) {
- struct v4l2_sliced_vbi_data *d = itv->vbi.sliced_dec_data + i;
+ const struct v4l2_sliced_vbi_data *d = sliced + i;
if (d->id == V4L2_SLICED_CAPTION_525 && d->line == 21) {
- found_cc = 1;
if (d->field) {
- cc[2] = d->data[0];
- cc[3] = d->data[1];
+ cc.even[0] = d->data[0];
+ cc.even[1] = d->data[1];
} else {
- cc[0] = d->data[0];
- cc[1] = d->data[1];
+ cc.odd[0] = d->data[0];
+ cc.odd[1] = d->data[1];
}
+ found_cc = 1;
}
else if (d->id == V4L2_SLICED_VPS && d->line == 16 && d->field == 0) {
- memcpy(vps, d->data, sizeof(vps));
- found_vps = 1;
+ struct vbi_vps vps;
+
+ vps.data[0] = d->data[2];
+ vps.data[1] = d->data[8];
+ vps.data[2] = d->data[9];
+ vps.data[3] = d->data[10];
+ vps.data[4] = d->data[11];
+ if (memcmp(&vps, &vi->vps_payload, sizeof(vps))) {
+ vi->vps_payload = vps;
+ set_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags);
+ }
}
else if (d->id == V4L2_SLICED_WSS_625 && d->line == 23 && d->field == 0) {
- wss = d->data[0] | d->data[1] << 8;
- found_wss = 1;
- }
- }
+ int wss = d->data[0] | d->data[1] << 8;
- if (itv->vbi.wss_found != found_wss || itv->vbi.wss != wss) {
- itv->vbi.wss = wss;
- itv->vbi.wss_found = found_wss;
- set_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags);
- }
-
- if (found_vps || itv->vbi.vps_found) {
- itv->vbi.vps[0] = vps[2];
- itv->vbi.vps[1] = vps[8];
- itv->vbi.vps[2] = vps[9];
- itv->vbi.vps[3] = vps[10];
- itv->vbi.vps[4] = vps[11];
- itv->vbi.vps_found = found_vps;
- set_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags);
+ if (vi->wss_payload != wss) {
+ vi->wss_payload = wss;
+ set_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags);
+ }
+ }
}
-
- if (found_cc && cc_pos < sizeof(itv->vbi.cc_data_even)) {
- itv->vbi.cc_data_odd[cc_pos] = cc[0];
- itv->vbi.cc_data_odd[cc_pos + 1] = cc[1];
- itv->vbi.cc_data_even[cc_pos] = cc[2];
- itv->vbi.cc_data_even[cc_pos + 1] = cc[3];
- itv->vbi.cc_pos = cc_pos + 2;
+ if (found_cc && vi->cc_payload_idx < sizeof(vi->cc_payload)) {
+ vi->cc_payload[vi->cc_payload_idx++] = cc;
set_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
}
}
return line * sizeof(itv->vbi.sliced_dec_data[0]);
}
-ssize_t ivtv_write_vbi(struct ivtv *itv, const char __user *ubuf, size_t count)
-{
- /* Should be a __user pointer, but sparse doesn't parse this bit correctly. */
- const struct v4l2_sliced_vbi_data *p = (const struct v4l2_sliced_vbi_data *)ubuf;
- u8 cc[4] = { 0x80, 0x80, 0x80, 0x80 };
- int found_cc = 0;
- int cc_pos = itv->vbi.cc_pos;
-
- while (count >= sizeof(struct v4l2_sliced_vbi_data)) {
- switch (p->id) {
- case V4L2_SLICED_CAPTION_525:
- if (p->line == 21) {
- found_cc = 1;
- if (p->field) {
- cc[2] = p->data[0];
- cc[3] = p->data[1];
- } else {
- cc[0] = p->data[0];
- cc[1] = p->data[1];
- }
- }
- break;
-
- case V4L2_SLICED_VPS:
- if (p->line == 16 && p->field == 0) {
- itv->vbi.vps[0] = p->data[2];
- itv->vbi.vps[1] = p->data[8];
- itv->vbi.vps[2] = p->data[9];
- itv->vbi.vps[3] = p->data[10];
- itv->vbi.vps[4] = p->data[11];
- itv->vbi.vps_found = 1;
- set_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags);
- }
- break;
-
- case V4L2_SLICED_WSS_625:
- if (p->line == 23 && p->field == 0) {
- /* No lock needed for WSS */
- itv->vbi.wss = p->data[0] | (p->data[1] << 8);
- itv->vbi.wss_found = 1;
- set_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags);
- }
- break;
-
- default:
- break;
- }
- count -= sizeof(*p);
- p++;
- }
-
- if (found_cc && cc_pos < sizeof(itv->vbi.cc_data_even)) {
- itv->vbi.cc_data_odd[cc_pos] = cc[0];
- itv->vbi.cc_data_odd[cc_pos + 1] = cc[1];
- itv->vbi.cc_data_even[cc_pos] = cc[2];
- itv->vbi.cc_data_even[cc_pos + 1] = cc[3];
- itv->vbi.cc_pos = cc_pos + 2;
- set_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
- }
-
- return (const char __user *)p - ubuf;
-}
-
/* Compress raw VBI format, removes leading SAV codes and surplus space after the
field.
Returns new compressed size. */
memcpy(buf->buf, itv->vbi.sliced_dec_data, cnt);
buf->bytesused = cnt;
- passthrough_vbi_data(itv, cnt / sizeof(itv->vbi.sliced_dec_data[0]));
+ ivtv_write_vbi(itv, itv->vbi.sliced_dec_data,
+ cnt / sizeof(itv->vbi.sliced_dec_data[0]));
return;
}
}
-void ivtv_disable_vbi(struct ivtv *itv)
+void ivtv_disable_cc(struct ivtv *itv)
{
- clear_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags);
- clear_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags);
+ struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
+
clear_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
- ivtv_set_wss(itv, 0, 0);
- ivtv_set_cc(itv, 0, 0, 0, 0, 0);
- ivtv_set_vps(itv, 0, 0, 0, 0, 0, 0);
- itv->vbi.vps_found = itv->vbi.wss_found = 0;
- itv->vbi.wss = 0;
- itv->vbi.cc_pos = 0;
+ ivtv_set_cc(itv, 0, &cc);
+ itv->vbi.cc_payload_idx = 0;
}
void ivtv_vbi_work_handler(struct ivtv *itv)
{
+ struct vbi_info *vi = &itv->vbi;
struct v4l2_sliced_vbi_data data;
+ struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
/* Lock */
if (itv->output_mode == OUT_PASSTHROUGH) {
- /* Note: currently only the saa7115 is used in a PVR350,
- so these commands are for now saa7115 specific. */
if (itv->is_50hz) {
data.id = V4L2_SLICED_WSS_625;
data.field = 0;
if (itv->video_dec_func(itv, VIDIOC_INT_G_VBI_DATA, &data) == 0) {
ivtv_set_wss(itv, 1, data.data[0] & 0xf);
- itv->vbi.wss_no_update = 0;
- } else if (itv->vbi.wss_no_update == 4) {
+ vi->wss_missing_cnt = 0;
+ } else if (vi->wss_missing_cnt == 4) {
ivtv_set_wss(itv, 1, 0x8); /* 4x3 full format */
} else {
- itv->vbi.wss_no_update++;
+ vi->wss_missing_cnt++;
}
}
else {
- u8 c1 = 0, c2 = 0, c3 = 0, c4 = 0;
int mode = 0;
data.id = V4L2_SLICED_CAPTION_525;
data.field = 0;
if (itv->video_dec_func(itv, VIDIOC_INT_G_VBI_DATA, &data) == 0) {
mode |= 1;
- c1 = data.data[0];
- c2 = data.data[1];
+ cc.odd[0] = data.data[0];
+ cc.odd[1] = data.data[1];
}
data.field = 1;
if (itv->video_dec_func(itv, VIDIOC_INT_G_VBI_DATA, &data) == 0) {
mode |= 2;
- c3 = data.data[0];
- c4 = data.data[1];
+ cc.even[0] = data.data[0];
+ cc.even[1] = data.data[1];
}
if (mode) {
- itv->vbi.cc_no_update = 0;
- ivtv_set_cc(itv, mode, c1, c2, c3, c4);
- } else if (itv->vbi.cc_no_update == 4) {
- ivtv_set_cc(itv, 0, 0, 0, 0, 0);
+ vi->cc_missing_cnt = 0;
+ ivtv_set_cc(itv, mode, &cc);
+ } else if (vi->cc_missing_cnt == 4) {
+ ivtv_set_cc(itv, 0, &cc);
} else {
- itv->vbi.cc_no_update++;
+ vi->cc_missing_cnt++;
}
}
return;
}
if (test_and_clear_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags)) {
- /* Lock */
- ivtv_set_wss(itv, itv->vbi.wss_found, itv->vbi.wss & 0xf);
+ ivtv_set_wss(itv, 1, vi->wss_payload & 0xf);
}
- if (test_and_clear_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags)) {
- if (itv->vbi.cc_pos == 0) {
- ivtv_set_cc(itv, 3, 0x80, 0x80, 0x80, 0x80);
+ if (test_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags)) {
+ if (vi->cc_payload_idx == 0) {
+ clear_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
+ ivtv_set_cc(itv, 3, &cc);
}
- while (itv->vbi.cc_pos) {
- u8 cc_odd0 = itv->vbi.cc_data_odd[0];
- u8 cc_odd1 = itv->vbi.cc_data_odd[1];
- u8 cc_even0 = itv->vbi.cc_data_even[0];
- u8 cc_even1 = itv->vbi.cc_data_even[1];
-
- memcpy(itv->vbi.cc_data_odd, itv->vbi.cc_data_odd + 2, sizeof(itv->vbi.cc_data_odd) - 2);
- memcpy(itv->vbi.cc_data_even, itv->vbi.cc_data_even + 2, sizeof(itv->vbi.cc_data_even) - 2);
- itv->vbi.cc_pos -= 2;
- if (itv->vbi.cc_pos && cc_odd0 == 0x80 && cc_odd1 == 0x80)
+ while (vi->cc_payload_idx) {
+ cc = vi->cc_payload[0];
+
+ memcpy(vi->cc_payload, vi->cc_payload + 1,
+ sizeof(vi->cc_payload) - sizeof(vi->cc_payload[0]));
+ vi->cc_payload_idx--;
+ if (vi->cc_payload_idx && cc.odd[0] == 0x80 && cc.odd[1] == 0x80)
continue;
- /* Send to Saa7127 */
- ivtv_set_cc(itv, 3, cc_odd0, cc_odd1, cc_even0, cc_even1);
- if (itv->vbi.cc_pos == 0)
- set_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
+ ivtv_set_cc(itv, 3, &cc);
break;
}
}
if (test_and_clear_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags)) {
- /* Lock */
- ivtv_set_vps(itv, itv->vbi.vps_found,
- itv->vbi.vps[0], itv->vbi.vps[1],
- itv->vbi.vps[2], itv->vbi.vps[3], itv->vbi.vps[4]);
+ ivtv_set_vps(itv, 1);
}
}
Code Review / linux-2.6.git / commitdiff