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Update _negotiate_streaming_parameters() to handle some requests

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This commit is contained in:
kkitayam 2021-10-19 21:49:00 +09:00
parent 4fd0ee4eef
commit b3b6b4f785
1 changed files with 41 additions and 33 deletions
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74
src/class/video/video_device.c
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@ -354,9 +354,9 @@ static bool _update_streaming_parameters(videod_streaming_interface_t const *stm
return true;
}
/** Set the minimum, maximum or default values to variables which need to negotiate with the host
/** Set the minimum, maximum, default values or resolutions to variables which need to negotiate with the host
*
* @param[in] request GET_MAX, GET_MIN or GET_DEF
* @param[in] request GET_MAX, GET_MIN, GET_RES or GET_DEF
* @param[in,out] param Target
*/
static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *stm, uint_fast8_t request,
@ -420,27 +420,56 @@ static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *
tusb_desc_cs_video_fmt_uncompressed_t const *fmt = _find_desc_format(tu_desc_next(vs), end, fmtnum);
tusb_desc_cs_video_frm_uncompressed_t const *frm = _find_desc_frame(tu_desc_next(fmt), end, frmnum);
uint_fast32_t interval;
uint_fast32_t interval, interval_ms;
switch (request) {
case VIDEO_REQUEST_GET_MAX:
{
uint_fast32_t min_interval, max_interval;
uint_fast8_t num_intervals = frm->bFrameIntervalType;
interval = num_intervals ? frm->dwFrameInterval[num_intervals - 1]: frm->dwFrameInterval[1];
max_interval = num_intervals ? frm->dwFrameInterval[num_intervals - 1]: frm->dwFrameInterval[1];
min_interval = frm->dwFrameInterval[0];
interval = max_interval;
interval_ms = min_interval / 10000;
}
break;
case VIDEO_REQUEST_GET_MIN:
interval = frm->dwFrameInterval[0];
{
uint_fast32_t min_interval, max_interval;
uint_fast8_t num_intervals = frm->bFrameIntervalType;
max_interval = num_intervals ? frm->dwFrameInterval[num_intervals - 1]: frm->dwFrameInterval[1];
min_interval = frm->dwFrameInterval[0];
interval = min_interval;
interval_ms = max_interval / 10000;
}
break;
case VIDEO_REQUEST_GET_DEF:
interval = frm->dwDefaultFrameInterval;
interval_ms = interval / 10000;
break;
case VIDEO_REQUEST_GET_RES:
{
uint_fast8_t num_intervals = frm->bFrameIntervalType;
if (num_intervals) {
interval = 0;
} else {
interval = frm->dwFrameInterval[2];
interval_ms = interval / 10000;
}
}
break;
default: return false;
}
param->dwFrameInterval = interval;
uint_fast32_t interval_ms = interval / 10000;
TU_ASSERT(interval_ms);
uint_fast32_t frame_size = param->dwMaxVideoFrameSize;
param->dwMaxPayloadTransferSize = (frame_size + interval_ms - 1) / interval_ms + 2;
if (!interval) {
param->dwMaxPayloadTransferSize = 0;
} else {
uint_fast32_t frame_size = param->dwMaxVideoFrameSize;
if (!interval_ms) {
param->dwMaxPayloadTransferSize = frame_size + 2;
} else {
param->dwMaxPayloadTransferSize = (frame_size + interval_ms - 1) / interval_ms + 2;
}
}
return true;
}
return true;
@ -802,39 +831,18 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_MIN:
if (stage == CONTROL_STAGE_SETUP)
{
TU_VERIFY(request->wLength, VIDEO_ERROR_UNKNOWN);
video_probe_and_commit_control_t tmp;
tmp = *(video_probe_and_commit_control_t*)&self->ep_buf;
TU_VERIFY(_negotiate_streaming_parameters(self, VIDEO_REQUEST_GET_MIN, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
TU_VERIFY(tud_control_xfer(rhport, request, &tmp, sizeof(video_probe_and_commit_control_t)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_MAX:
if (stage == CONTROL_STAGE_SETUP)
{
TU_VERIFY(request->wLength, VIDEO_ERROR_UNKNOWN);
video_probe_and_commit_control_t tmp;
tmp = *(video_probe_and_commit_control_t*)&self->ep_buf;
TU_VERIFY(_negotiate_streaming_parameters(self, VIDEO_REQUEST_GET_MAX, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
TU_VERIFY(tud_control_xfer(rhport, request, self->ep_buf, sizeof(video_probe_and_commit_control_t)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_RES: return VIDEO_ERROR_UNKNOWN;
case VIDEO_REQUEST_GET_RES:
case VIDEO_REQUEST_GET_DEF:
if (stage == CONTROL_STAGE_SETUP)
{
TU_VERIFY(request->wLength, VIDEO_ERROR_UNKNOWN);
video_probe_and_commit_control_t tmp;
tmp = *(video_probe_and_commit_control_t*)&self->ep_buf;
TU_VERIFY(_negotiate_streaming_parameters(self, VIDEO_REQUEST_GET_DEF, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
TU_VERIFY(_negotiate_streaming_parameters(self, request->bRequest, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
TU_VERIFY(tud_control_xfer(rhport, request, self->ep_buf, sizeof(video_probe_and_commit_control_t)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_UNKNOWN;
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_LEN:
if (stage == CONTROL_STAGE_SETUP)