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update hid open()

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This commit is contained in:
hathach
2020-05-28 11:19:12 +07:00
parent 7a15d2e0d2
commit 89a3d1f6d1
3 changed files with 18 additions and 17 deletions
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21
src/class/hid/hid_device.c
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@@ -158,11 +158,12 @@ void hidd_reset(uint8_t rhport)
tu_memclr(_hidd_itf, sizeof(_hidd_itf));
}
bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t *p_len)
uint16_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t max_len)
{
TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass);
TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass, 0);
uint8_t const *p_desc = (uint8_t const *) desc_itf;
// max length is at least interface + hid descriptor + 1 endpoint
TU_ASSERT(max_len >= sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t), 0);
// Find available interface
hidd_interface_t * p_hid = NULL;
@@ -175,16 +176,18 @@ bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t
break;
}
}
TU_ASSERT(p_hid);
TU_ASSERT(p_hid, 0);
uint8_t const *p_desc = (uint8_t const *) desc_itf;
//------------- HID descriptor -------------//
p_desc = tu_desc_next(p_desc);
p_hid->hid_descriptor = (tusb_hid_descriptor_hid_t const *) p_desc;
TU_ASSERT(HID_DESC_TYPE_HID == p_hid->hid_descriptor->bDescriptorType);
TU_ASSERT(HID_DESC_TYPE_HID == p_hid->hid_descriptor->bDescriptorType, 0);
//------------- Endpoint Descriptor -------------//
p_desc = tu_desc_next(p_desc);
TU_ASSERT(usbd_open_edpt_pair(rhport, p_desc, desc_itf->bNumEndpoints, TUSB_XFER_INTERRUPT, &p_hid->ep_out, &p_hid->ep_in));
TU_ASSERT(usbd_open_edpt_pair(rhport, p_desc, desc_itf->bNumEndpoints, TUSB_XFER_INTERRUPT, &p_hid->ep_out, &p_hid->ep_in), 0);
if ( desc_itf->bInterfaceSubClass == HID_SUBCLASS_BOOT ) p_hid->boot_protocol = desc_itf->bInterfaceProtocol;
@@ -192,12 +195,10 @@ bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t
p_hid->itf_num = desc_itf->bInterfaceNumber;
memcpy(&p_hid->report_desc_len, &(p_hid->hid_descriptor->wReportLength), 2);
*p_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
// Prepare for output endpoint
if (p_hid->ep_out) TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
if (p_hid->ep_out) TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)), 0);
return true;
return sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
}
// Handle class control request