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cdc check for bNumEndpoints before checking for endpoint descriptor

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This commit is contained in:
hathach
2022-12-14 17:35:01 +07:00
parent 4f03695084
commit f0c51eae44
2 changed files with 36 additions and 31 deletions
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64
src/class/cdc/cdc_host.c
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@@ -152,13 +152,43 @@ bool tuh_cdc_set_control_line_state(uint8_t dev_addr, bool dtr, bool rts, tuh_xf
}
//--------------------------------------------------------------------+
// USBH-CLASS DRIVER API
// CLASS-USBH API
//--------------------------------------------------------------------+
void cdch_init(void)
{
tu_memclr(cdch_data, sizeof(cdch_data));
}
void cdch_close(uint8_t dev_addr)
{
TU_VERIFY(dev_addr <= CFG_TUH_DEVICE_MAX, );
cdch_data_t * p_cdc = get_itf(dev_addr);
// Invoke application callback
if (tuh_cdc_umount_cb)
{
if (p_cdc->ep_out || p_cdc->ep_in || p_cdc->ep_notif)
{
tuh_cdc_umount_cb(dev_addr);
}
}
tu_memclr(p_cdc, sizeof(cdch_data_t));
}
bool cdch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
{
(void) ep_addr;
tuh_cdc_xfer_isr( dev_addr, event, 0, xferred_bytes );
return true;
}
//--------------------------------------------------------------------+
// Enumeration
//--------------------------------------------------------------------+
bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len)
{
(void) rhport;
@@ -175,7 +205,7 @@ bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it
p_cdc->itf_num = itf_desc->bInterfaceNumber;
p_cdc->itf_protocol = itf_desc->bInterfaceProtocol;
//------------- Communication Interface -------------//
//------------- Control Interface -------------//
uint16_t drv_len = tu_desc_len(itf_desc);
uint8_t const * p_desc = tu_desc_next(itf_desc);
@@ -192,9 +222,10 @@ bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it
p_desc = tu_desc_next(p_desc);
}
if ( TUSB_DESC_ENDPOINT == tu_desc_type(p_desc) )
// Open notification endpoint of control interface if any
if (itf_desc->bNumEndpoints == 1)
{
// notification endpoint
TU_ASSERT(TUSB_DESC_ENDPOINT == tu_desc_type(p_desc));
tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT( tuh_edpt_open(dev_addr, desc_ep) );
@@ -244,29 +275,4 @@ bool cdch_set_config(uint8_t dev_addr, uint8_t itf_num)
return true;
}
bool cdch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
{
(void) ep_addr;
tuh_cdc_xfer_isr( dev_addr, event, 0, xferred_bytes );
return true;
}
void cdch_close(uint8_t dev_addr)
{
TU_VERIFY(dev_addr <= CFG_TUH_DEVICE_MAX, );
cdch_data_t * p_cdc = get_itf(dev_addr);
// Invoke application callback
if (tuh_cdc_umount_cb)
{
if (p_cdc->ep_out || p_cdc->ep_in || p_cdc->ep_notif)
{
tuh_cdc_umount_cb(dev_addr);
}
}
tu_memclr(p_cdc, sizeof(cdch_data_t));
}
#endif