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hid_device: use separate buffer for SET_REPORT instead of epout

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This commit is contained in:
Shawn Hoffman 2023-10-17 19:26:11 -07:00
parent 86c416d4c0
commit f88a5bb03b
1 changed files with 4 additions and 3 deletions
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7
src/class/hid/hid_device.c
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@ -52,6 +52,7 @@ typedef struct
CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_HID_EP_BUFSIZE];
CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_HID_EP_BUFSIZE];
CFG_TUSB_MEM_ALIGN uint8_t set_report_buf[CFG_TUD_HID_EP_BUFSIZE];
// TODO save hid descriptor since host can specifically request this after enumeration
// Note: HID descriptor may be not available from application after enumeration
@ -307,15 +308,15 @@ bool hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t
case HID_REQ_CONTROL_SET_REPORT:
if ( stage == CONTROL_STAGE_SETUP )
{
TU_VERIFY(request->wLength <= sizeof(p_hid->epout_buf));
tud_control_xfer(rhport, request, p_hid->epout_buf, request->wLength);
TU_VERIFY(request->wLength <= sizeof(p_hid->set_report_buf));
tud_control_xfer(rhport, request, p_hid->set_report_buf, request->wLength);
}
else if ( stage == CONTROL_STAGE_ACK )
{
uint8_t const report_type = tu_u16_high(request->wValue);
uint8_t const report_id = tu_u16_low(request->wValue);
uint8_t const* report_buf = p_hid->epout_buf;
uint8_t const* report_buf = p_hid->set_report_buf;
uint16_t report_len = tu_min16(request->wLength, CFG_TUD_HID_EP_BUFSIZE);
// If host request a specific Report ID, extract report ID in buffer before invoking callback