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clean up vendor open

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hathach 2021-10-01 23:00:09 +07:00
parent 75ad0c7d31
commit fec2d15989
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GPG Key ID: 2FA891220FBFD581
1 changed files with 5 additions and 6 deletions
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11
src/class/vendor/vendor_device.c vendored
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@ -179,8 +179,8 @@ uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, ui
{
TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == desc_itf->bInterfaceClass, 0);
uint16_t drv_len = tu_desc_len(desc_itf);
uint8_t const * p_desc = tu_desc_next(desc_itf);
uint8_t const * desc_end = p_desc + max_len;
// Find available interface
vendord_interface_t* p_vendor = NULL;
@ -198,16 +198,15 @@ uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, ui
if (desc_itf->bNumEndpoints)
{
// skip non-endpoint descriptors
while ( (TUSB_DESC_ENDPOINT != tu_desc_type(p_desc)) && (drv_len <= max_len) )
while ( (TUSB_DESC_ENDPOINT != tu_desc_type(p_desc)) && (p_desc < desc_end) )
{
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
p_desc = tu_desc_next(p_desc);
}
// Open endpoint pair with usbd helper
TU_ASSERT(usbd_open_edpt_pair(rhport, p_desc, desc_itf->bNumEndpoints, TUSB_XFER_BULK, &p_vendor->ep_out, &p_vendor->ep_in), 0);
drv_len += desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
p_desc += desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
// Prepare for incoming data
if ( p_vendor->ep_out )
@ -218,7 +217,7 @@ uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, ui
if ( p_vendor->ep_in ) maybe_transmit(p_vendor);
}
return drv_len;
return (uintptr_t) p_desc - (uintptr_t) desc_itf;
}
bool vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)