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feat(class/video/usbd_video): add usbd_video_stream_start_write api for video split tranfer, every transfer with one ep_mps

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This commit is contained in:
sakumisu
2024-10-17 21:13:26 +08:00
parent 05315b7ea5
commit 65151b9534
3 changed files with 90 additions and 29 deletions
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63
class/video/usbd_video.c
View File

@@ -18,6 +18,10 @@ struct usbd_video_priv {
uint8_t power_mode;
uint8_t error_code;
struct video_entity_info info[3];
uint8_t *ep_buffer;
uint8_t *stream_buf;
uint32_t stream_len;
uint32_t stream_offset;
} g_usbd_video[CONFIG_USBDEV_MAX_BUS];
static int usbd_video_control_request_handler(uint8_t busid, struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
@@ -671,7 +675,7 @@ static int video_class_interface_request_handler(uint8_t busid, struct usb_setup
} else {
return usbd_video_control_unit_terminal_request_handler(busid, setup, data, len); /* Unit and Terminal Requests */
}
} else if (intf_num == 1) { /* Video Stream Inteface */
} else if (intf_num == 1) { /* Video Stream Inteface */
return usbd_video_stream_request_handler(busid, setup, data, len); /* Interface Stream Requests */
}
return -1;
@@ -700,7 +704,7 @@ static void video_notify_handler(uint8_t busid, uint8_t event, void *arg)
}
}
void usbd_video_probe_and_commit_controls_init(uint8_t busid, uint32_t dwFrameInterval, uint32_t dwMaxVideoFrameSize, uint32_t dwMaxPayloadTransferSize)
static void usbd_video_probe_and_commit_controls_init(uint8_t busid, uint32_t dwFrameInterval, uint32_t dwMaxVideoFrameSize, uint32_t dwMaxPayloadTransferSize)
{
g_usbd_video[busid].probe.hintUnion.bmHint = 0x01;
g_usbd_video[busid].probe.hintUnion1.bmHint = 0;
@@ -739,7 +743,8 @@ void usbd_video_probe_and_commit_controls_init(uint8_t busid, uint32_t dwFrameIn
g_usbd_video[busid].commit.bMaxVersion = 0;
}
struct usbd_interface *usbd_video_init_intf(uint8_t busid, struct usbd_interface *intf,
struct usbd_interface *usbd_video_init_intf(uint8_t busid,
struct usbd_interface *intf,
uint32_t dwFrameInterval,
uint32_t dwMaxVideoFrameSize,
uint32_t dwMaxPayloadTransferSize)
@@ -763,6 +768,56 @@ struct usbd_interface *usbd_video_init_intf(uint8_t busid, struct usbd_interface
return intf;
}
bool usbd_video_stream_split_transfer(uint8_t busid, uint8_t ep)
{
struct video_payload_header *header = (struct video_payload_header *)g_usbd_video[busid].ep_buffer;
uint32_t remain;
uint32_t len;
remain = g_usbd_video[busid].stream_len - g_usbd_video[busid].stream_offset;
if (remain == 0) {
return true;
}
header->bHeaderLength = 2;
header->headerInfoUnion.headerInfoBits.endOfHeader = 1;
len = MIN(remain, g_usbd_video[busid].probe.dwMaxPayloadTransferSize - header->bHeaderLength);
memcpy(&g_usbd_video[busid].ep_buffer[header->bHeaderLength],
&g_usbd_video[busid].stream_buf[g_usbd_video[busid].stream_offset],
len);
g_usbd_video[busid].stream_offset += len;
if (g_usbd_video[busid].stream_offset == g_usbd_video[busid].stream_len) {
header->headerInfoUnion.headerInfoBits.endOfFrame = 1;
}
usbd_ep_start_write(busid, ep, g_usbd_video[busid].ep_buffer, len + header->bHeaderLength);
return false;
}
int usbd_video_stream_start_write(uint8_t busid, uint8_t ep, uint8_t *ep_buffer, uint8_t *buf, uint32_t len)
{
if (usb_device_is_configured(busid) == 0) {
return -1;
}
g_usbd_video[busid].ep_buffer = ep_buffer;
g_usbd_video[busid].stream_buf = buf;
g_usbd_video[busid].stream_len = len;
g_usbd_video[busid].stream_offset = 0;
struct video_payload_header *header = (struct video_payload_header *)g_usbd_video[busid].ep_buffer;
header->headerInfoUnion.headerInfoBits.frameIdentifier ^= 1;
header->headerInfoUnion.headerInfoBits.endOfFrame = 0;
usbd_video_stream_split_transfer(busid, ep);
return 0;
}
uint32_t usbd_video_payload_fill(uint8_t busid, uint8_t *input, uint32_t input_len, uint8_t *output, uint32_t *out_len)
{
uint32_t packets;
@@ -770,7 +825,7 @@ uint32_t usbd_video_payload_fill(uint8_t busid, uint8_t *input, uint32_t input_l
uint32_t picture_pos = 0;
static uint8_t uvc_header[2] = { 0x02, 0x80 };
packets = (input_len + (g_usbd_video[busid].probe.dwMaxPayloadTransferSize - 2) ) / (g_usbd_video[busid].probe.dwMaxPayloadTransferSize - 2);
packets = (input_len + (g_usbd_video[busid].probe.dwMaxPayloadTransferSize - 2)) / (g_usbd_video[busid].probe.dwMaxPayloadTransferSize - 2);
last_packet_size = input_len - ((packets - 1) * (g_usbd_video[busid].probe.dwMaxPayloadTransferSize - 2));
for (size_t i = 0; i < packets; i++) {

4
class/video/usbd_video.h
View File

@@ -20,6 +20,10 @@ struct usbd_interface *usbd_video_init_intf(uint8_t busid, struct usbd_interface
void usbd_video_open(uint8_t busid, uint8_t intf);
void usbd_video_close(uint8_t busid, uint8_t intf);
bool usbd_video_stream_split_transfer(uint8_t busid, uint8_t ep);
int usbd_video_stream_start_write(uint8_t busid, uint8_t ep, uint8_t *ep_buffer, uint8_t *buf, uint32_t len);
uint32_t usbd_video_payload_fill(uint8_t busid, uint8_t *input, uint32_t input_len, uint8_t *output, uint32_t *out_len);
#ifdef __cplusplus