Add state variable
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389babf20b
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993b8d6686
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@ -37,6 +37,10 @@
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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#define VS_STATE_PROBING 0 /* Configuration in progress */
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#define VS_STATE_COMMITTED 1 /* Ready for streaming or Streaming via bulk endpoint */
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#define VS_STATE_STREAMING 2 /* Streaming via isochronous endpoint */
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typedef struct {
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typedef struct {
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tusb_desc_interface_t std;
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tusb_desc_interface_t std;
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tusb_desc_cs_video_ctl_itf_hdr_t ctl;
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tusb_desc_cs_video_ctl_itf_hdr_t ctl;
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@ -102,6 +106,7 @@ typedef struct TU_ATTR_PACKED {
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uint32_t offset; /* offset for the next payload transfer */
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uint32_t offset; /* offset for the next payload transfer */
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uint32_t max_payload_transfer_size;
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uint32_t max_payload_transfer_size;
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uint8_t error_code;/* error code */
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uint8_t error_code;/* error code */
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uint8_t state; /* 0:probing 1:committed 2:streaming */
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/*------------- From this point, data is not cleared by bus reset -------------*/
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/*------------- From this point, data is not cleared by bus reset -------------*/
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CFG_TUSB_MEM_ALIGN uint8_t ep_buf[CFG_TUD_VIDEO_STREAMING_EP_BUFSIZE]; /* EP transfer buffer for streaming */
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CFG_TUSB_MEM_ALIGN uint8_t ep_buf[CFG_TUD_VIDEO_STREAMING_EP_BUFSIZE]; /* EP transfer buffer for streaming */
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} videod_streaming_interface_t;
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} videod_streaming_interface_t;
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@ -639,6 +644,17 @@ static bool _open_vc_itf(uint8_t rhport, videod_interface_t *self, uint_fast8_t
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return true;
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return true;
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}
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}
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static bool _init_vs_configuration(videod_streaming_interface_t *stm)
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{
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/* initialize streaming settings */
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stm->state = VS_STATE_PROBING;
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stm->max_payload_transfer_size = 0;
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video_probe_and_commit_control_t *param =
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(video_probe_and_commit_control_t *)&stm->ep_buf;
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tu_memclr(param, sizeof(*param));
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return _update_streaming_parameters(stm, param);
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}
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/** Set the alternate setting to own video streaming interface.
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/** Set the alternate setting to own video streaming interface.
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*
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*
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* @param[in,out] stm Streaming interface context.
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* @param[in,out] stm Streaming interface context.
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@ -672,43 +688,32 @@ static bool _open_vs_itf(uint8_t rhport, videod_streaming_interface_t *stm, uint
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uint_fast8_t numeps = ((tusb_desc_interface_t const *)cur)->bNumEndpoints;
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uint_fast8_t numeps = ((tusb_desc_interface_t const *)cur)->bNumEndpoints;
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TU_ASSERT(numeps <= TU_ARRAY_SIZE(stm->desc.ep));
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TU_ASSERT(numeps <= TU_ARRAY_SIZE(stm->desc.ep));
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stm->desc.cur = (uint16_t) (cur - desc); /* Save the offset of the new settings */
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stm->desc.cur = (uint16_t)(cur - desc); /* Save the offset of the new settings */
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if (!altnum) {
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if (!altnum && (VS_STATE_COMMITTED != stm->state)) {
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/* initialize streaming settings */
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TU_VERIFY(_init_vs_configuration(stm));
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stm->max_payload_transfer_size = 0;
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video_probe_and_commit_control_t *param =
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(video_probe_and_commit_control_t *)&stm->ep_buf;
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tu_memclr(param, sizeof(*param));
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TU_LOG2(" done 0\n");
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if (!_update_streaming_parameters(stm, param))
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return false;
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/* Open bulk endpoint if present. */
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for (i = 0, cur = tu_desc_next(cur); i < numeps; ++i, cur = tu_desc_next(cur)) {
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cur = _find_desc_ep(cur, end);
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TU_ASSERT(cur < end);
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tusb_desc_endpoint_t const *ep = (tusb_desc_endpoint_t const*)cur;
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TU_VERIFY(TUSB_XFER_BULK == ep->bmAttributes.xfer);
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TU_ASSERT(usbd_edpt_open(rhport, ep));
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stm->desc.ep[i] = (uint16_t)(cur - desc);
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TU_LOG2(" open EP%02x\n", _desc_ep_addr(cur));
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}
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return true;
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}
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}
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/* Open isochronous endpoints of the new settings. */
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/* Open bulk or isochronous endpoints of the new settings. */
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for (i = 0, cur = tu_desc_next(cur); i < numeps; ++i, cur = tu_desc_next(cur)) {
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for (i = 0, cur = tu_desc_next(cur); i < numeps; ++i, cur = tu_desc_next(cur)) {
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cur = _find_desc_ep(cur, end);
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cur = _find_desc_ep(cur, end);
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TU_ASSERT(cur < end);
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TU_ASSERT(cur < end);
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tusb_desc_endpoint_t const *ep = (tusb_desc_endpoint_t const*)cur;
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tusb_desc_endpoint_t const *ep = (tusb_desc_endpoint_t const*)cur;
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uint_fast32_t max_size = stm->max_payload_transfer_size;
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uint_fast32_t max_size = stm->max_payload_transfer_size;
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if ((TUSB_XFER_ISOCHRONOUS == ep->bmAttributes.xfer) &&
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if (altnum) {
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(tu_edpt_packet_size(ep) < max_size)) {
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if ((TUSB_XFER_ISOCHRONOUS == ep->bmAttributes.xfer) &&
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/* FS must be less than or equal to max packet size */
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(tu_edpt_packet_size(ep) < max_size)) {
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return false;
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/* FS must be less than or equal to max packet size */
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return false;
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}
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} else {
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TU_VERIFY(TUSB_XFER_BULK == ep->bmAttributes.xfer);
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}
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}
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TU_ASSERT(usbd_edpt_open(rhport, ep));
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TU_ASSERT(usbd_edpt_open(rhport, ep));
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stm->desc.ep[i] = (uint16_t) (cur - desc);
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stm->desc.ep[i] = (uint16_t) (cur - desc);
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TU_LOG2(" open EP%02x\n", _desc_ep_addr(cur));
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TU_LOG2(" open EP%02x\n", _desc_ep_addr(cur));
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}
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}
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if (altnum) {
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stm->state = VS_STATE_STREAMING;
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}
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TU_LOG2(" done\n");
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TU_LOG2(" done\n");
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return true;
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return true;
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}
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}
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@ -921,6 +926,10 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
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break;
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break;
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case VIDEO_VS_CTL_PROBE:
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case VIDEO_VS_CTL_PROBE:
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if (self->state != VS_STATE_PROBING) {
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self->state = VS_STATE_PROBING;
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_init_vs_configuration(self);
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}
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switch (request->bRequest) {
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switch (request->bRequest) {
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case VIDEO_REQUEST_SET_CUR:
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case VIDEO_REQUEST_SET_CUR:
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if (stage == CONTROL_STAGE_SETUP) {
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if (stage == CONTROL_STAGE_SETUP) {
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@ -992,6 +1001,10 @@ static int handle_video_stm_cs_req(uint8_t rhport, uint8_t stage,
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ret = tud_video_commit_cb(self->index_vc, self->index_vs, param);
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ret = tud_video_commit_cb(self->index_vc, self->index_vs, param);
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}
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}
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if (VIDEO_ERROR_NONE == ret) {
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if (VIDEO_ERROR_NONE == ret) {
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self->state = VS_STATE_COMMITTED;
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self->buffer = NULL;
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self->bufsize = 0;
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self->offset = 0;
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/* initialize payload header */
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/* initialize payload header */
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tusb_video_payload_header_t *hdr = (tusb_video_payload_header_t*)self->ep_buf;
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tusb_video_payload_header_t *hdr = (tusb_video_payload_header_t*)self->ep_buf;
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hdr->bHeaderLength = sizeof(*hdr);
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hdr->bHeaderLength = sizeof(*hdr);
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@ -1080,6 +1093,7 @@ bool tud_video_n_streaming(uint_fast8_t ctl_idx, uint_fast8_t stm_idx)
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TU_ASSERT(stm_idx < CFG_TUD_VIDEO_STREAMING);
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TU_ASSERT(stm_idx < CFG_TUD_VIDEO_STREAMING);
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videod_streaming_interface_t *stm = _get_instance_streaming(ctl_idx, stm_idx);
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videod_streaming_interface_t *stm = _get_instance_streaming(ctl_idx, stm_idx);
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if (!stm || !stm->desc.ep[0]) return false;
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if (!stm || !stm->desc.ep[0]) return false;
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if (stm->state == VS_STATE_PROBING) return false;
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return true;
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return true;
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}
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}
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@ -1090,6 +1104,7 @@ bool tud_video_n_frame_xfer(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, void *bu
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if (!buffer || !bufsize) return false;
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if (!buffer || !bufsize) return false;
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videod_streaming_interface_t *stm = _get_instance_streaming(ctl_idx, stm_idx);
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videod_streaming_interface_t *stm = _get_instance_streaming(ctl_idx, stm_idx);
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if (!stm || !stm->desc.ep[0] || stm->buffer) return false;
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if (!stm || !stm->desc.ep[0] || stm->buffer) return false;
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if (stm->state == VS_STATE_PROBING) return false;
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/* Find EP address */
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/* Find EP address */
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uint8_t const *desc = _videod_itf[stm->index_vc].beg;
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uint8_t const *desc = _videod_itf[stm->index_vc].beg;
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@ -1185,6 +1200,7 @@ uint16_t videod_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uin
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stm->desc.beg = (uint16_t) ((uintptr_t)cur - (uintptr_t)itf_desc);
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stm->desc.beg = (uint16_t) ((uintptr_t)cur - (uintptr_t)itf_desc);
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cur = _next_desc_itf(cur, end);
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cur = _next_desc_itf(cur, end);
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stm->desc.end = (uint16_t) ((uintptr_t)cur - (uintptr_t)itf_desc);
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stm->desc.end = (uint16_t) ((uintptr_t)cur - (uintptr_t)itf_desc);
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stm->state = VS_STATE_PROBING;
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if (0 == stm_idx && 1 == bInCollection) {
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if (0 == stm_idx && 1 == bInCollection) {
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/* If there is only one streaming interface and no alternate settings,
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/* If there is only one streaming interface and no alternate settings,
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* host may not issue set_interface so open the streaming interface here. */
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* host may not issue set_interface so open the streaming interface here. */
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