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This commit is contained in:
HiFiPhile
2024-04-26 18:01:02 +02:00
parent 268cc19f44
commit 24339dbcce
1 changed files with 153 additions and 202 deletions
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355
src/class/hid/hid_device.c
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@@ -39,12 +39,11 @@
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF // MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
typedef struct typedef struct {
{
uint8_t itf_num; uint8_t itf_num;
uint8_t ep_in; uint8_t ep_in;
uint8_t ep_out; // optional Out endpoint uint8_t ep_out; // optional Out endpoint
uint8_t itf_protocol; // Boot mouse or keyboard uint8_t itf_protocol; // Boot mouse or keyboard
uint16_t report_desc_len; uint16_t report_desc_len;
CFG_TUSB_MEM_ALIGN uint8_t protocol_mode; // Boot (0) or Report protocol (1) CFG_TUSB_MEM_ALIGN uint8_t protocol_mode; // Boot (0) or Report protocol (1)
@@ -56,7 +55,7 @@ typedef struct
// TODO save hid descriptor since host can specifically request this after enumeration // TODO save hid descriptor since host can specifically request this after enumeration
// Note: HID descriptor may be not available from application after enumeration // Note: HID descriptor may be not available from application after enumeration
tusb_hid_descriptor_hid_t const * hid_descriptor; tusb_hid_descriptor_hid_t const *hid_descriptor;
} hidd_interface_t; } hidd_interface_t;
CFG_TUD_MEM_SECTION tu_static hidd_interface_t _hidd_itf[CFG_TUD_HID]; CFG_TUD_MEM_SECTION tu_static hidd_interface_t _hidd_itf[CFG_TUD_HID];
@@ -64,12 +63,12 @@ CFG_TUD_MEM_SECTION tu_static hidd_interface_t _hidd_itf[CFG_TUD_HID];
/*------------- Helpers -------------*/ /*------------- Helpers -------------*/
static inline uint8_t get_index_by_itfnum(uint8_t itf_num) static inline uint8_t get_index_by_itfnum(uint8_t itf_num)
{ {
for (uint8_t i=0; i < CFG_TUD_HID; i++ ) for (uint8_t i = 0; i < CFG_TUD_HID; i++) {
{ if (itf_num == _hidd_itf[i].itf_num)
if ( itf_num == _hidd_itf[i].itf_num ) return i; return i;
} }
return 0xFF; return 0xFF;
} }
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
@@ -82,37 +81,29 @@ bool tud_hid_n_ready(uint8_t instance)
return tud_ready() && (ep_in != 0) && !usbd_edpt_busy(rhport, ep_in); return tud_ready() && (ep_in != 0) && !usbd_edpt_busy(rhport, ep_in);
} }
bool tud_hid_n_report(uint8_t instance, uint8_t report_id, void const* report, uint16_t len) bool tud_hid_n_report(uint8_t instance, uint8_t report_id, void const *report, uint16_t len)
{ {
uint8_t const rhport = 0; uint8_t const rhport = 0;
hidd_interface_t * p_hid = &_hidd_itf[instance]; hidd_interface_t *p_hid = &_hidd_itf[instance];
// claim endpoint // claim endpoint
TU_VERIFY( usbd_edpt_claim(rhport, p_hid->ep_in) ); TU_VERIFY(usbd_edpt_claim(rhport, p_hid->ep_in));
// prepare data // prepare data
if (report_id) if (report_id) {
{
p_hid->epin_buf[0] = report_id; p_hid->epin_buf[0] = report_id;
TU_VERIFY(0 == tu_memcpy_s(p_hid->epin_buf+1, CFG_TUD_HID_EP_BUFSIZE-1, report, len)); TU_VERIFY(0 == tu_memcpy_s(p_hid->epin_buf + 1, CFG_TUD_HID_EP_BUFSIZE - 1, report, len));
len++; len++;
}else } else {
{
TU_VERIFY(0 == tu_memcpy_s(p_hid->epin_buf, CFG_TUD_HID_EP_BUFSIZE, report, len)); TU_VERIFY(0 == tu_memcpy_s(p_hid->epin_buf, CFG_TUD_HID_EP_BUFSIZE, report, len));
} }
return usbd_edpt_xfer(rhport, p_hid->ep_in, p_hid->epin_buf, len); return usbd_edpt_xfer(rhport, p_hid->ep_in, p_hid->epin_buf, len);
} }
uint8_t tud_hid_n_interface_protocol(uint8_t instance) uint8_t tud_hid_n_interface_protocol(uint8_t instance) { return _hidd_itf[instance].itf_protocol; }
{
return _hidd_itf[instance].itf_protocol;
}
uint8_t tud_hid_n_get_protocol(uint8_t instance) uint8_t tud_hid_n_get_protocol(uint8_t instance) { return _hidd_itf[instance].protocol_mode; }
{
return _hidd_itf[instance].protocol_mode;
}
bool tud_hid_n_keyboard_report(uint8_t instance, uint8_t report_id, uint8_t modifier, uint8_t keycode[6]) bool tud_hid_n_keyboard_report(uint8_t instance, uint8_t report_id, uint8_t modifier, uint8_t keycode[6])
{ {
@@ -121,27 +112,23 @@ bool tud_hid_n_keyboard_report(uint8_t instance, uint8_t report_id, uint8_t modi
report.modifier = modifier; report.modifier = modifier;
report.reserved = 0; report.reserved = 0;
if ( keycode ) if (keycode) {
{
memcpy(report.keycode, keycode, sizeof(report.keycode)); memcpy(report.keycode, keycode, sizeof(report.keycode));
}else } else {
{
tu_memclr(report.keycode, 6); tu_memclr(report.keycode, 6);
} }
return tud_hid_n_report(instance, report_id, &report, sizeof(report)); return tud_hid_n_report(instance, report_id, &report, sizeof(report));
} }
bool tud_hid_n_mouse_report(uint8_t instance, uint8_t report_id, bool tud_hid_n_mouse_report(uint8_t instance, uint8_t report_id, uint8_t buttons, int8_t x, int8_t y, int8_t vertical, int8_t horizontal)
uint8_t buttons, int8_t x, int8_t y, int8_t vertical, int8_t horizontal)
{ {
hid_mouse_report_t report = hid_mouse_report_t report = {
{
.buttons = buttons, .buttons = buttons,
.x = x, .x = x,
.y = y, .y = y,
.wheel = vertical, .wheel = vertical,
.pan = horizontal .pan = horizontal
}; };
return tud_hid_n_report(instance, report_id, &report, sizeof(report)); return tud_hid_n_report(instance, report_id, &report, sizeof(report));
@@ -149,29 +136,27 @@ bool tud_hid_n_mouse_report(uint8_t instance, uint8_t report_id,
bool tud_hid_n_abs_mouse_report(uint8_t instance, uint8_t report_id, uint8_t buttons, int16_t x, int16_t y, int8_t vertical, int8_t horizontal) bool tud_hid_n_abs_mouse_report(uint8_t instance, uint8_t report_id, uint8_t buttons, int16_t x, int16_t y, int8_t vertical, int8_t horizontal)
{ {
hid_abs_mouse_report_t report = hid_abs_mouse_report_t report = {
{
.buttons = buttons, .buttons = buttons,
.x = x, .x = x,
.y = y, .y = y,
.wheel = vertical, .wheel = vertical,
.pan = horizontal .pan = horizontal
}; };
return tud_hid_n_report(instance, report_id, &report, sizeof(report)); return tud_hid_n_report(instance, report_id, &report, sizeof(report));
} }
bool tud_hid_n_gamepad_report(uint8_t instance, uint8_t report_id, bool tud_hid_n_gamepad_report(uint8_t instance, uint8_t report_id, int8_t x, int8_t y, int8_t z, int8_t rz, int8_t rx, int8_t ry, uint8_t hat, uint32_t buttons)
int8_t x, int8_t y, int8_t z, int8_t rz, int8_t rx, int8_t ry, uint8_t hat, uint32_t buttons) { {
hid_gamepad_report_t report = hid_gamepad_report_t report = {
{ .x = x,
.x = x, .y = y,
.y = y, .z = z,
.z = z, .rz = rz,
.rz = rz, .rx = rx,
.rx = rx, .ry = ry,
.ry = ry, .hat = hat,
.hat = hat, .buttons = buttons,
.buttons = buttons,
}; };
return tud_hid_n_report(instance, report_id, &report, sizeof(report)); return tud_hid_n_report(instance, report_id, &report, sizeof(report));
@@ -180,67 +165,64 @@ bool tud_hid_n_gamepad_report(uint8_t instance, uint8_t report_id,
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
// USBD-CLASS API // USBD-CLASS API
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
void hidd_init(void) { void hidd_init(void)
{
hidd_reset(0); hidd_reset(0);
} }
bool hidd_deinit(void) { bool hidd_deinit(void)
{
return true; return true;
} }
void hidd_reset(uint8_t rhport) void hidd_reset(uint8_t rhport)
{ {
(void) rhport; (void)rhport;
tu_memclr(_hidd_itf, sizeof(_hidd_itf)); tu_memclr(_hidd_itf, sizeof(_hidd_itf));
} }
uint16_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t max_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, 0); TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass, 0);
// len = interface + hid + n*endpoints // len = interface + hid + n*endpoints
uint16_t const drv_len = uint16_t const drv_len = (uint16_t)(sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints * sizeof(tusb_desc_endpoint_t));
(uint16_t) (sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) +
desc_itf->bNumEndpoints * sizeof(tusb_desc_endpoint_t));
TU_ASSERT(max_len >= drv_len, 0); TU_ASSERT(max_len >= drv_len, 0);
// Find available interface // Find available interface
hidd_interface_t * p_hid = NULL; hidd_interface_t *p_hid = NULL;
uint8_t hid_id; uint8_t hid_id;
for(hid_id=0; hid_id<CFG_TUD_HID; hid_id++) for (hid_id = 0; hid_id < CFG_TUD_HID; hid_id++) {
{ if (_hidd_itf[hid_id].ep_in == 0) {
if ( _hidd_itf[hid_id].ep_in == 0 )
{
p_hid = &_hidd_itf[hid_id]; p_hid = &_hidd_itf[hid_id];
break; break;
} }
} }
TU_ASSERT(p_hid, 0); TU_ASSERT(p_hid, 0);
uint8_t const *p_desc = (uint8_t const *) desc_itf; uint8_t const *p_desc = (uint8_t const *)desc_itf;
//------------- HID descriptor -------------// //------------- HID descriptor -------------//
p_desc = tu_desc_next(p_desc); p_desc = tu_desc_next(p_desc);
TU_ASSERT(HID_DESC_TYPE_HID == tu_desc_type(p_desc), 0); TU_ASSERT(HID_DESC_TYPE_HID == tu_desc_type(p_desc), 0);
p_hid->hid_descriptor = (tusb_hid_descriptor_hid_t const *) p_desc; p_hid->hid_descriptor = (tusb_hid_descriptor_hid_t const *)p_desc;
//------------- Endpoint Descriptor -------------// //------------- Endpoint Descriptor -------------//
p_desc = tu_desc_next(p_desc); 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), 0); 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->itf_protocol = desc_itf->bInterfaceProtocol; if (desc_itf->bInterfaceSubClass == HID_SUBCLASS_BOOT)
p_hid->itf_protocol = desc_itf->bInterfaceProtocol;
p_hid->protocol_mode = HID_PROTOCOL_REPORT; // Per Specs: default is report mode p_hid->protocol_mode = HID_PROTOCOL_REPORT; // Per Specs: default is report mode
p_hid->itf_num = desc_itf->bInterfaceNumber; p_hid->itf_num = desc_itf->bInterfaceNumber;
// Use offsetof to avoid pointer to the odd/misaligned address // Use offsetof to avoid pointer to the odd/misaligned address
p_hid->report_desc_len = tu_unaligned_read16((uint8_t const*) p_hid->hid_descriptor + offsetof(tusb_hid_descriptor_hid_t, wReportLength)); p_hid->report_desc_len = tu_unaligned_read16((uint8_t const *)p_hid->hid_descriptor + offsetof(tusb_hid_descriptor_hid_t, wReportLength));
// Prepare for output endpoint // Prepare for output endpoint
if (p_hid->ep_out) if (p_hid->ep_out) {
{ if (!usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf))) {
if ( !usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)) )
{
TU_LOG_FAILED(); TU_LOG_FAILED();
TU_BREAKPOINT(); TU_BREAKPOINT();
} }
@@ -252,144 +234,120 @@ uint16_t hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint1
// Invoked when a control transfer occurred on an interface of this class // Invoked when a control transfer occurred on an interface of this class
// Driver response accordingly to the request and the transfer stage (setup/data/ack) // Driver response accordingly to the request and the transfer stage (setup/data/ack)
// return false to stall control endpoint (e.g unsupported request) // return false to stall control endpoint (e.g unsupported request)
bool hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const * request) bool hidd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const *request)
{ {
TU_VERIFY(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE); TU_VERIFY(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE);
uint8_t const hid_itf = get_index_by_itfnum((uint8_t) request->wIndex); uint8_t const hid_itf = get_index_by_itfnum((uint8_t)request->wIndex);
TU_VERIFY(hid_itf < CFG_TUD_HID); TU_VERIFY(hid_itf < CFG_TUD_HID);
hidd_interface_t* p_hid = &_hidd_itf[hid_itf]; hidd_interface_t *p_hid = &_hidd_itf[hid_itf];
if (request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD) if (request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD) {
{
//------------- STD Request -------------// //------------- STD Request -------------//
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ uint8_t const desc_type = tu_u16_high(request->wValue);
uint8_t const desc_type = tu_u16_high(request->wValue); // uint8_t const desc_index = tu_u16_low (request->wValue);
//uint8_t const desc_index = tu_u16_low (request->wValue);
if (request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_HID) if (request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_HID) {
{
TU_VERIFY(p_hid->hid_descriptor); TU_VERIFY(p_hid->hid_descriptor);
TU_VERIFY(tud_control_xfer(rhport, request, (void*)(uintptr_t) p_hid->hid_descriptor, p_hid->hid_descriptor->bLength)); TU_VERIFY(tud_control_xfer(rhport, request, (void *)(uintptr_t)p_hid->hid_descriptor, p_hid->hid_descriptor->bLength));
} } else if (request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT) {
else if (request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT) uint8_t const *desc_report = tud_hid_descriptor_report_cb(hid_itf);
{ tud_control_xfer(rhport, request, (void *)(uintptr_t)desc_report, p_hid->report_desc_len);
uint8_t const * desc_report = tud_hid_descriptor_report_cb(hid_itf); } else {
tud_control_xfer(rhport, request, (void*)(uintptr_t) desc_report, p_hid->report_desc_len);
}
else
{
return false; // stall unsupported request return false; // stall unsupported request
} }
} }
} } else if (request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS) {
else if (request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS)
{
//------------- Class Specific Request -------------// //------------- Class Specific Request -------------//
switch( request->bRequest ) switch (request->bRequest) {
{ case HID_REQ_CONTROL_GET_REPORT:
case HID_REQ_CONTROL_GET_REPORT: if (stage == CONTROL_STAGE_SETUP) {
if ( stage == CONTROL_STAGE_SETUP ) uint8_t const report_type = tu_u16_high(request->wValue);
{ uint8_t const report_id = tu_u16_low(request->wValue);
uint8_t const report_type = tu_u16_high(request->wValue);
uint8_t const report_id = tu_u16_low(request->wValue);
uint8_t* report_buf = p_hid->ctrl_buf; uint8_t *report_buf = p_hid->ctrl_buf;
uint16_t req_len = tu_min16(request->wLength, CFG_TUD_HID_EP_BUFSIZE); uint16_t req_len = tu_min16(request->wLength, CFG_TUD_HID_EP_BUFSIZE);
uint16_t xferlen = 0; uint16_t xferlen = 0;
// If host request a specific Report ID, add ID to as 1 byte of response // If host request a specific Report ID, add ID to as 1 byte of response
if ( (report_id != HID_REPORT_TYPE_INVALID) && (req_len > 1) ) if ((report_id != HID_REPORT_TYPE_INVALID) && (req_len > 1)) {
{ *report_buf++ = report_id;
*report_buf++ = report_id; req_len--;
req_len--;
xferlen++; xferlen++;
}
xferlen += tud_hid_get_report_cb(hid_itf, report_id, (hid_report_type_t) report_type, report_buf, req_len);
TU_ASSERT( xferlen > 0 );
tud_control_xfer(rhport, request, p_hid->ctrl_buf, xferlen);
} }
xferlen += tud_hid_get_report_cb(hid_itf, report_id, (hid_report_type_t)report_type, report_buf, req_len);
TU_ASSERT(xferlen > 0);
tud_control_xfer(rhport, request, p_hid->ctrl_buf, xferlen);
}
break; break;
case HID_REQ_CONTROL_SET_REPORT: case HID_REQ_CONTROL_SET_REPORT:
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ TU_VERIFY(request->wLength <= sizeof(p_hid->ctrl_buf));
TU_VERIFY(request->wLength <= sizeof(p_hid->ctrl_buf)); tud_control_xfer(rhport, request, p_hid->ctrl_buf, request->wLength);
tud_control_xfer(rhport, request, p_hid->ctrl_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->ctrl_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
if ((report_id != HID_REPORT_TYPE_INVALID) && (report_len > 1) && (report_id == report_buf[0])) {
report_buf++;
report_len--;
} }
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->ctrl_buf; tud_hid_set_report_cb(hid_itf, report_id, (hid_report_type_t)report_type, report_buf, report_len);
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
if ( (report_id != HID_REPORT_TYPE_INVALID) && (report_len > 1) && (report_id == report_buf[0]) )
{
report_buf++;
report_len--;
}
tud_hid_set_report_cb(hid_itf, report_id, (hid_report_type_t) report_type, report_buf, report_len);
}
break; break;
case HID_REQ_CONTROL_SET_IDLE: case HID_REQ_CONTROL_SET_IDLE:
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ p_hid->idle_rate = tu_u16_high(request->wValue);
p_hid->idle_rate = tu_u16_high(request->wValue); if (tud_hid_set_idle_cb) {
if ( tud_hid_set_idle_cb ) // stall request if callback return false
{ TU_VERIFY(tud_hid_set_idle_cb(hid_itf, p_hid->idle_rate));
// stall request if callback return false
TU_VERIFY( tud_hid_set_idle_cb( hid_itf, p_hid->idle_rate) );
}
tud_control_status(rhport, request);
} }
tud_control_status(rhport, request);
}
break; break;
case HID_REQ_CONTROL_GET_IDLE: case HID_REQ_CONTROL_GET_IDLE:
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ // TODO idle rate of report
// TODO idle rate of report tud_control_xfer(rhport, request, &p_hid->idle_rate, 1);
tud_control_xfer(rhport, request, &p_hid->idle_rate, 1); }
}
break; break;
case HID_REQ_CONTROL_GET_PROTOCOL: case HID_REQ_CONTROL_GET_PROTOCOL:
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ tud_control_xfer(rhport, request, &p_hid->protocol_mode, 1);
tud_control_xfer(rhport, request, &p_hid->protocol_mode, 1); }
}
break; break;
case HID_REQ_CONTROL_SET_PROTOCOL: case HID_REQ_CONTROL_SET_PROTOCOL:
if ( stage == CONTROL_STAGE_SETUP ) if (stage == CONTROL_STAGE_SETUP) {
{ tud_control_status(rhport, request);
tud_control_status(rhport, request); } else if (stage == CONTROL_STAGE_ACK) {
} p_hid->protocol_mode = (uint8_t)request->wValue;
else if ( stage == CONTROL_STAGE_ACK ) if (tud_hid_set_protocol_cb) {
{ tud_hid_set_protocol_cb(hid_itf, p_hid->protocol_mode);
p_hid->protocol_mode = (uint8_t) request->wValue;
if (tud_hid_set_protocol_cb)
{
tud_hid_set_protocol_cb(hid_itf, p_hid->protocol_mode);
}
} }
}
break; break;
default: return false; // stall unsupported request default:
return false; // stall unsupported request
} }
}else } else {
{
return false; // stall unsupported request return false; // stall unsupported request
} }
@@ -398,31 +356,27 @@ bool hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t
bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes) bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
{ {
(void) result; (void)result;
uint8_t instance = 0; uint8_t instance = 0;
hidd_interface_t * p_hid = _hidd_itf; hidd_interface_t *p_hid = _hidd_itf;
// Identify which interface to use // Identify which interface to use
for (instance = 0; instance < CFG_TUD_HID; instance++) for (instance = 0; instance < CFG_TUD_HID; instance++) {
{
p_hid = &_hidd_itf[instance]; p_hid = &_hidd_itf[instance];
if ( (ep_addr == p_hid->ep_out) || (ep_addr == p_hid->ep_in) ) break; if ((ep_addr == p_hid->ep_out) || (ep_addr == p_hid->ep_in))
break;
} }
TU_ASSERT(instance < CFG_TUD_HID); TU_ASSERT(instance < CFG_TUD_HID);
// Check if there was a problem // Check if there was a problem
if (XFER_RESULT_SUCCESS != result) if (XFER_RESULT_SUCCESS != result) { // Inform application about the issue
{ if (tud_hid_report_fail_cb) {
// Inform application about the issue tud_hid_report_fail_cb(instance, ep_addr, (uint16_t)xferred_bytes);
if (tud_hid_report_fail_cb)
{
tud_hid_report_fail_cb(instance, ep_addr, (uint16_t) xferred_bytes);
} }
// Allow a new transfer to be received if issue happened on an OUT endpoint // Allow a new transfer to be received if issue happened on an OUT endpoint
if (ep_addr == p_hid->ep_out) if (ep_addr == p_hid->ep_out) {
{
// Prepare the OUT endpoint to be able to receive a new transfer // Prepare the OUT endpoint to be able to receive a new transfer
TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf))); TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
} }
@@ -431,17 +385,14 @@ bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_
} }
// Sent report successfully // Sent report successfully
if (ep_addr == p_hid->ep_in) if (ep_addr == p_hid->ep_in) {
{ if (tud_hid_report_complete_cb) {
if (tud_hid_report_complete_cb) tud_hid_report_complete_cb(instance, p_hid->epin_buf, (uint16_t)xferred_bytes);
{
tud_hid_report_complete_cb(instance, p_hid->epin_buf, (uint16_t) xferred_bytes);
} }
} }
// Received report successfully // Received report successfully
else if (ep_addr == p_hid->ep_out) else if (ep_addr == p_hid->ep_out) {
{ tud_hid_set_report_cb(instance, 0, HID_REPORT_TYPE_OUTPUT, p_hid->epout_buf, (uint16_t)xferred_bytes);
tud_hid_set_report_cb(instance, 0, HID_REPORT_TYPE_OUTPUT, p_hid->epout_buf, (uint16_t) xferred_bytes);
TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf))); TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
} }