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make vendor driver more flexible

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- skip additional custom descriptor between interface and endpoints
- can have up to 2 bulk endpoint ( 1 in & 1 out)
This commit is contained in:
hathach 2021-09-14 21:30:38 +07:00
parent 25ea8f9c9e
commit b474522245
3 changed files with 26 additions and 18 deletions
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38
src/class/vendor/vendor_device.c vendored
View File

@ -175,12 +175,12 @@ void vendord_reset(uint8_t rhport)
}
}
uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)
uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t max_len)
{
TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == itf_desc->bInterfaceClass, 0);
TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == desc_itf->bInterfaceClass, 0);
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + itf_desc->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
TU_VERIFY(max_len >= drv_len, 0);
uint16_t drv_len = tu_desc_len(desc_itf);
uint8_t const * p_desc = tu_desc_next(desc_itf);
// Find available interface
vendord_interface_t* p_vendor = NULL;
@ -194,21 +194,29 @@ uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, ui
}
TU_VERIFY(p_vendor, 0);
// Open endpoint pair with usbd helper
TU_ASSERT(usbd_open_edpt_pair(rhport, tu_desc_next(itf_desc), 2, TUSB_XFER_BULK, &p_vendor->ep_out, &p_vendor->ep_in), 0);
p_vendor->itf_num = itf_desc->bInterfaceNumber;
// Prepare for incoming data
if ( !usbd_edpt_xfer(rhport, p_vendor->ep_out, p_vendor->epout_buf, sizeof(p_vendor->epout_buf)) )
p_vendor->itf_num = desc_itf->bInterfaceNumber;
if (desc_itf->bNumEndpoints)
{
TU_LOG_FAILED();
TU_BREAKPOINT();
// skip non-endpoint descriptors
while ( (TUSB_DESC_ENDPOINT != tu_desc_type(p_desc)) && (drv_len <= max_len) )
{
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
}
maybe_transmit(p_vendor);
// 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);
return drv_len;
// Prepare for incoming data
if ( p_vendor->ep_out )
{
TU_ASSERT(usbd_edpt_xfer(rhport, p_vendor->ep_out, p_vendor->epout_buf, sizeof(p_vendor->epout_buf)), 0);
}
if ( p_vendor->ep_in ) maybe_transmit(p_vendor);
}
return (uint16_t) true;
}
bool vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)

2
src/device/usbd.c
View File

@ -922,7 +922,7 @@ static bool process_set_config(uint8_t rhport, uint8_t cfg_num)
#endif
uint16_t const drv_len = tu_desc_get_interface_total_len(desc_itf, assoc_itf_count, desc_end-p_desc);
TU_ASSERT(drv_len);
TU_ASSERT(drv_len >= sizeof(tusb_desc_interface_t));
// Find driver for this interface
uint8_t drv_id;

2
src/host/usbh.c
View File

@ -1016,7 +1016,7 @@ static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configura
#endif
uint16_t const drv_len = tu_desc_get_interface_total_len(desc_itf, assoc_itf_count, desc_end-p_desc);
TU_ASSERT(drv_len);
TU_ASSERT(drv_len >= sizeof(tusb_desc_interface_t));
if (desc_itf->bInterfaceClass == TUSB_CLASS_HUB && dev->hub_addr != 0)
{