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Implement GET_DEF and GET_LEN handling on Probe/Commit entities of streaming interface

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This commit is contained in:
kkitayam 2021-10-16 15:52:46 +09:00
parent 7325dd6335
commit 4fd0ee4eef
1 changed files with 68 additions and 18 deletions
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86
src/class/video/video_device.c
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@ -354,21 +354,25 @@ static bool _update_streaming_parameters(videod_streaming_interface_t const *stm
return true;
}
/** Set the minimum or the maximum values to variables which need to negotiate with the host
/** Set the minimum, maximum or default values to variables which need to negotiate with the host
*
* @param[in] set_max If true, the maximum values is set, otherwise the minimum value is set.
* @param[in] request GET_MAX, GET_MIN or GET_DEF
* @param[in,out] param Target
*/
static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *stm, bool set_max,
static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *stm, uint_fast8_t request,
video_probe_and_commit_control_t *param)
{
uint_fast8_t const fmtnum = param->bFormatIndex;
if (!fmtnum) {
if (set_max) {
tusb_desc_vs_itf_t const *vs = _get_desc_vs(stm);
param->bFormatIndex = vs->stm.bNumFormats;
} else {
param->bFormatIndex = 1;
switch (request) {
case VIDEO_REQUEST_GET_MAX:
param->bFormatIndex = _get_desc_vs(stm)->stm.bNumFormats;
break;
case VIDEO_REQUEST_GET_MIN:
case VIDEO_REQUEST_GET_DEF:
param->bFormatIndex = 1;
break;
default: return false;
}
/* Set the parameters determined by the format */
param->wKeyFrameRate = 1;
@ -391,7 +395,18 @@ static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *
tusb_desc_vs_itf_t const *vs = _get_desc_vs(stm);
void const *end = _end_of_streaming_descriptor(vs);
tusb_desc_cs_video_fmt_uncompressed_t const *fmt = _find_desc_format(tu_desc_next(vs), end, fmtnum);
frmnum = set_max ? fmt->bNumFrameDescriptors: 1;
switch (request) {
case VIDEO_REQUEST_GET_MAX:
frmnum = fmt->bNumFrameDescriptors;
break;
case VIDEO_REQUEST_GET_MIN:
frmnum = 1;
break;
case VIDEO_REQUEST_GET_DEF:
frmnum = fmt->bDefaultFrameIndex;
break;
default: return false;
}
param->bFrameIndex = frmnum;
/* Set the parameters determined by the frame */
tusb_desc_cs_video_frm_uncompressed_t const *frm = _find_desc_frame(tu_desc_next(fmt), end, frmnum);
@ -406,11 +421,20 @@ static bool _negotiate_streaming_parameters(videod_streaming_interface_t const *
tusb_desc_cs_video_frm_uncompressed_t const *frm = _find_desc_frame(tu_desc_next(fmt), end, frmnum);
uint_fast32_t interval;
uint_fast8_t num_intervals = frm->bFrameIntervalType;
if (!num_intervals) {
interval = set_max ? frm->dwFrameInterval[1]: frm->dwFrameInterval[0];
} else {
interval = set_max ? frm->dwFrameInterval[num_intervals - 1]: frm->dwFrameInterval[0];
switch (request) {
case VIDEO_REQUEST_GET_MAX:
{
uint_fast8_t num_intervals = frm->bFrameIntervalType;
interval = num_intervals ? frm->dwFrameInterval[num_intervals - 1]: frm->dwFrameInterval[1];
}
break;
case VIDEO_REQUEST_GET_MIN:
interval = frm->dwFrameInterval[0];
break;
case VIDEO_REQUEST_GET_DEF:
interval = frm->dwDefaultFrameInterval;
break;
default: return false;
}
param->dwFrameInterval = interval;
uint_fast32_t interval_ms = interval / 10000;
@ -784,7 +808,7 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
video_probe_and_commit_control_t tmp;
tmp = *(video_probe_and_commit_control_t*)&self->ep_buf;
TU_VERIFY(_negotiate_streaming_parameters(self, false, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
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;
@ -795,14 +819,31 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
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, true, &tmp), VIDEO_ERROR_INVALID_VALUE_WITHIN_RANGE);
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_DEF: return VIDEO_ERROR_UNKNOWN;
case VIDEO_REQUEST_GET_LEN: return VIDEO_ERROR_UNKNOWN;
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(tud_control_xfer(rhport, request, self->ep_buf, sizeof(video_probe_and_commit_control_t)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_UNKNOWN;
case VIDEO_REQUEST_GET_LEN:
if (stage == CONTROL_STAGE_SETUP)
{
TU_VERIFY(2 == request->wLength, VIDEO_ERROR_UNKNOWN);
uint16_t len = sizeof(video_probe_and_commit_control_t);
TU_VERIFY(tud_control_xfer(rhport, request, (uint8_t*)&len, sizeof(len)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_INFO:
if (stage == CONTROL_STAGE_SETUP)
@ -838,6 +879,15 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
}
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_LEN:
if (stage == CONTROL_STAGE_SETUP)
{
TU_VERIFY(2 == request->wLength, VIDEO_ERROR_UNKNOWN);
uint16_t len = sizeof(video_probe_and_commit_control_t);
TU_VERIFY(tud_control_xfer(rhport, request, (uint8_t*)&len, sizeof(len)), VIDEO_ERROR_UNKNOWN);
}
return VIDEO_ERROR_NONE;
case VIDEO_REQUEST_GET_INFO:
if (stage == CONTROL_STAGE_SETUP)
{