andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Merge pull request #3118 from ZakDanger/vendor_device_fix

Browse Source 
vendor device open fix for descriptor parsing
This commit is contained in:
HiFiPhile
2025-05-16 10:25:28 +02:00
committed by GitHub
parent 9548d51c7e a2117d5d0f
commit 531fb69531
1 changed files with 12 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/class/vendor/vendor_device.c vendored
View File

@@ -197,7 +197,7 @@ void vendord_reset(uint8_t rhport) {
uint16_t vendord_open(uint8_t rhport, const tusb_desc_interface_t* desc_itf, uint16_t max_len) {
TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == desc_itf->bInterfaceClass, 0);
const uint8_t* p_desc = tu_desc_next(desc_itf);
const uint8_t* desc_end = (uint8_t const*)desc_itf + max_len;
const uint8_t* desc_end = (const uint8_t*)desc_itf + max_len;
// Find available interface
vendord_interface_t* p_vendor = NULL;
@@ -210,26 +210,18 @@ uint16_t vendord_open(uint8_t rhport, const tusb_desc_interface_t* desc_itf, uin
TU_VERIFY(p_vendor, 0);
p_vendor->itf_num = desc_itf->bInterfaceNumber;
uint8_t found_ep = 0;
while (found_ep < desc_itf->bNumEndpoints) {
// skip non-endpoint descriptors
while ( (TUSB_DESC_ENDPOINT != tu_desc_type(p_desc)) && (p_desc < desc_end) ) {
p_desc = tu_desc_next(p_desc);
}
if (p_desc >= desc_end) {
break;
}
while (TUSB_DESC_INTERFACE != tu_desc_type(p_desc) && (desc_end - p_desc > 0)) {
if (TUSB_DESC_ENDPOINT == tu_desc_type(p_desc)) {
const tusb_desc_endpoint_t* desc_ep = (const tusb_desc_endpoint_t*) p_desc;
TU_ASSERT(usbd_edpt_open(rhport, desc_ep));
const tusb_desc_endpoint_t* desc_ep = (const tusb_desc_endpoint_t*) p_desc;
TU_ASSERT(usbd_edpt_open(rhport, desc_ep));
found_ep++;
if (tu_edpt_dir(desc_ep->bEndpointAddress) == TUSB_DIR_IN) {
tu_edpt_stream_open(&p_vendor->tx.stream, desc_ep);
tud_vendor_n_write_flush((uint8_t)(p_vendor - _vendord_itf));
} else {
tu_edpt_stream_open(&p_vendor->rx.stream, desc_ep);
TU_ASSERT(tu_edpt_stream_read_xfer(rhport, &p_vendor->rx.stream) > 0, 0); // prepare for incoming data
if (tu_edpt_dir(desc_ep->bEndpointAddress) == TUSB_DIR_IN) {
tu_edpt_stream_open(&p_vendor->tx.stream, desc_ep);
tud_vendor_n_write_flush((uint8_t)(p_vendor - _vendord_itf));
} else {
tu_edpt_stream_open(&p_vendor->rx.stream, desc_ep);
TU_ASSERT(tu_edpt_stream_read_xfer(rhport, &p_vendor->rx.stream) > 0, 0); // prepare for incoming data
}
}
p_desc = tu_desc_next(p_desc);