static int cx18_encoder_cmd(struct file *file, void *fh,
struct v4l2_encoder_cmd *enc)
{
struct cx18_open_id *id = fh;
struct cx18 *cx = id->cx;
u32 h;
switch (enc->cmd) {
case V4L2_ENC_CMD_START:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
enc->flags = 0;
return cx18_start_capture(id);
case V4L2_ENC_CMD_STOP:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
cx18_stop_capture(id,
enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
break;
case V4L2_ENC_CMD_PAUSE:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
enc->flags = 0;
if (!atomic_read(&cx->ana_capturing))
return -EPERM;
if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
return 0;
h = cx18_find_handle(cx);
if (h == CX18_INVALID_TASK_HANDLE) {
CX18_ERR("Can't find valid task handle for "
"V4L2_ENC_CMD_PAUSE\n");
return -EBADFD;
}
cx18_mute(cx);
cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
break;
case V4L2_ENC_CMD_RESUME:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
enc->flags = 0;
if (!atomic_read(&cx->ana_capturing))
return -EPERM;
if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
return 0;
h = cx18_find_handle(cx);
if (h == CX18_INVALID_TASK_HANDLE) {
CX18_ERR("Can't find valid task handle for "
"V4L2_ENC_CMD_RESUME\n");
return -EBADFD;
}
cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
cx18_unmute(cx);
break;
default:
CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
return -EINVAL;
}
return 0;
}
void cx18_unmute(struct cx18 *cx)
{
if (atomic_read(&cx->ana_capturing)) {
cx18_msleep_timeout(100, 0);
cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2,
cx18_find_handle(cx), 12);
cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2,
cx18_find_handle(cx), 0);
}
CX18_DEBUG_INFO("Unmute\n");
}
void cx18_mute(struct cx18 *cx)
{
if (atomic_read(&cx->ana_capturing))
cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2,
cx18_find_handle(cx), 1);
CX18_DEBUG_INFO("Mute\n");
}
static void cx18_dualwatch(struct cx18 *cx)
{
struct v4l2_tuner vt;
u16 new_bitmap;
u16 new_stereo_mode;
const u16 stereo_mask = 0x0300;
const u16 dual = 0x0200;
new_stereo_mode = cx->params.audio_properties & stereo_mask;
memset(&vt, 0, sizeof(vt));
cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, &vt);
if (vt.audmode == V4L2_TUNER_MODE_LANG1_LANG2 &&
(vt.rxsubchans & V4L2_TUNER_SUB_LANG2))
new_stereo_mode = dual;
if (new_stereo_mode == cx->dualwatch_stereo_mode)
return;
new_bitmap = new_stereo_mode | (cx->params.audio_properties & ~stereo_mask);
CX18_DEBUG_INFO("dualwatch: change stereo flag from 0x%x to 0x%x. new audio_bitmask=0x%ux\n",
cx->dualwatch_stereo_mode, new_stereo_mode, new_bitmap);
if (cx18_vapi(cx, CX18_CPU_SET_AUDIO_PARAMETERS, 2,
cx18_find_handle(cx), new_bitmap) == 0) {
cx->dualwatch_stereo_mode = new_stereo_mode;
return;
}
CX18_DEBUG_INFO("dualwatch: changing stereo flag failed\n");
}
void cx18_mute(struct cx18 *cx)
{
u32 h;
if (atomic_read(&cx->ana_capturing)) {
h = cx18_find_handle(cx);
if (h != CX18_INVALID_TASK_HANDLE)
cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2, h, 1);
else
CX18_ERR("Can't find valid task handle for mute\n");
}
CX18_DEBUG_INFO("Mute\n");
}
void cx18_unmute(struct cx18 *cx)
{
u32 h;
if (atomic_read(&cx->ana_capturing)) {
h = cx18_find_handle(cx);
if (h != CX18_INVALID_TASK_HANDLE) {
cx18_msleep_timeout(100, 0);
cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2, h, 12);
cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2, h, 0);
} else
CX18_ERR("Can't find valid task handle for unmute\n");
}
CX18_DEBUG_INFO("Unmute\n");
}
static void cx18_dualwatch(struct cx18 *cx)
{
struct v4l2_tuner vt;
u32 new_bitmap;
u32 new_stereo_mode;
const u32 stereo_mask = 0x0300;
const u32 dual = 0x0200;
u32 h;
new_stereo_mode = cx->params.audio_properties & stereo_mask;
memset(&vt, 0, sizeof(vt));
cx18_call_all(cx, tuner, g_tuner, &vt);
if (vt.audmode == V4L2_TUNER_MODE_LANG1_LANG2 &&
(vt.rxsubchans & V4L2_TUNER_SUB_LANG2))
new_stereo_mode = dual;
if (new_stereo_mode == cx->dualwatch_stereo_mode)
return;
new_bitmap = new_stereo_mode
| (cx->params.audio_properties & ~stereo_mask);
CX18_DEBUG_INFO("dualwatch: change stereo flag from 0x%x to 0x%x. "
"new audio_bitmask=0x%ux\n",
cx->dualwatch_stereo_mode, new_stereo_mode, new_bitmap);
h = cx18_find_handle(cx);
if (h == CX18_INVALID_TASK_HANDLE) {
CX18_DEBUG_INFO("dualwatch: can't find valid task handle\n");
return;
}
if (cx18_vapi(cx,
CX18_CPU_SET_AUDIO_PARAMETERS, 2, h, new_bitmap) == 0) {
cx->dualwatch_stereo_mode = new_stereo_mode;
return;
}
CX18_DEBUG_INFO("dualwatch: changing stereo flag failed\n");
}
