// Called in ISR context when a data OUT stage has been performed
void USBAudio::USBCallback_requestCompleted(uint8_t * buf, uint32_t length) {
if ((length == 1) || (length == 2)) {
uint16_t data = (length == 1) ? *buf : *((uint16_t *)buf);
CONTROL_TRANSFER * transfer = getTransferPtr();
switch (transfer->setup.wValue >> 8) {
case MUTE_CONTROL:
switch (transfer->setup.bRequest) {
case REQUEST_SET_CUR:
mute = data & 0xff;
if (updateVol)
updateVol.call();
break;
default:
break;
}
break;
case VOLUME_CONTROL:
switch (transfer->setup.bRequest) {
case REQUEST_SET_CUR:
volCur = data;
volume = (float)volCur/(float)volMax;
if (updateVol)
updateVol.call();
break;
default:
break;
}
break;
default:
break;
}
}
bool USBCDC::USBCallback_request(void) {
/* Called in ISR context */
bool success = false;
CONTROL_TRANSFER * transfer = getTransferPtr();
/* Process class-specific requests */
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
switch (transfer->setup.bRequest) {
case CDC_GET_LINE_CODING:
transfer->remaining = 7;
transfer->ptr = cdc_line_coding;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case CDC_SET_LINE_CODING:
transfer->remaining = 7;
success = true;
break;
case CDC_SET_CONTROL_LINE_STATE:
success = true;
break;
default:
break;
}
}
return success;
}
// Called in ISR context to process a class specific request
bool USBMSD::USBCallback_request(void) {
bool success = false;
CONTROL_TRANSFER * transfer = getTransferPtr();
static uint8_t maxLUN[1] = {0};
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
switch (transfer->setup.bRequest) {
case MSC_REQUEST_RESET:
reset();
success = true;
break;
case MSC_REQUEST_GET_MAX_LUN:
transfer->remaining = 1;
transfer->ptr = maxLUN;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
default:
break;
}
}
return success;
}
void USBCDC::USBCallback_requestCompleted(uint8_t *buf, uint32_t length) {
// Request of setting line coding has 7 bytes
if (length != 7) {
return;
}
CONTROL_TRANSFER * transfer = getTransferPtr();
/* Process class-specific requests */
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
if (transfer->setup.bRequest == CDC_SET_LINE_CODING) {
if (memcmp(cdc_line_coding, buf, 7)) {
memcpy(cdc_line_coding, buf, 7);
int baud = buf[0] + (buf[1] << 8)
+ (buf[2] << 16) + (buf[3] << 24);
int stop = buf[4];
int bits = buf[6];
int parity = buf[5];
lineCodingChanged(baud, bits, parity, stop);
}
}
}
}
bool RJBaseUSBDevice::USBCallback_request() {
/* Called in ISR context */
CONTROL_TRANSFER* transfer = getTransferPtr();
// Handle vendor-specific requests
if (transfer->setup.bmRequestType.Type == VENDOR_TYPE) {
switch (transfer->setup.bRequest) {
case Base2015ControlCommand::RadioWriteRegister:
LOG(INF3, "writeReg request");
if (writeRegisterCallback)
writeRegisterCallback(transfer->setup.wIndex,
transfer->setup.wValue);
return true;
case Base2015ControlCommand::RadioReadRegister:
LOG(INF3, "readReg request");
if (transfer->setup.wLength > 0 && readRegisterCallback) {
_controlTransferReplyValue =
readRegisterCallback(transfer->setup.wIndex);
// setup reply transfer with reg value
transfer->direction = DEVICE_TO_HOST;
transfer->ptr = &_controlTransferReplyValue;
transfer->remaining = sizeof(_controlTransferReplyValue);
} else {
// stall EP0 to indicate error
EP0stall();
}
return true;
case Base2015ControlCommand::RadioStrobe:
LOG(INF3, "strobe request");
if (strobeCallback) strobeCallback(transfer->setup.wIndex);
return true;
default:
LOG(WARN, "Unrecognized usb VENDOR request '%d'",
transfer->setup.bRequest);
// stall EP0 to indicate error
EP0stall();
break;
}
}
// unhandled request
return false;
}
bool USBCDCMSC::USBCallback_request(void) {
/* Called in ISR context */
bool success = false;
CONTROL_TRANSFER * transfer = getTransferPtr();
static uint8_t maxLUN[1] = {0};
/* Process class-specific requests */
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
switch (transfer->setup.bRequest) {
case CDC_GET_LINE_CODING:
transfer->remaining = 7;
transfer->ptr = cdc_line_coding;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case CDC_SET_LINE_CODING:
transfer->remaining = 7;
success = true;
break;
case CDC_SET_CONTROL_LINE_STATE:
success = true;
break;
case CDC_SEND_BREAK:
cdcbreak = 1;
success = true;
break;
case MSC_REQUEST_RESET:
reset();
success = true;
break;
case MSC_REQUEST_GET_MAX_LUN:
transfer->remaining = 1;
transfer->ptr = maxLUN;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
default:
break;
}
}
return success;
}
// Called in ISR context
// Called by USBDevice on Endpoint0 request
// This is used to handle extensions to standard requests and class specific requests.
// Return true if class handles this request
bool USBAudio::USBCallback_request() {
bool success = false;
CONTROL_TRANSFER * transfer = getTransferPtr();
// Process class-specific requests
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
// Feature Unit: Interface = 0, ID = 2
if (transfer->setup.wIndex == 0x0200) {
// Master Channel
if ((transfer->setup.wValue & 0xff) == 0) {
switch (transfer->setup.wValue >> 8) {
case MUTE_CONTROL:
switch (transfer->setup.bRequest) {
case REQUEST_GET_CUR:
transfer->remaining = 1;
transfer->ptr = &mute;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case REQUEST_SET_CUR:
transfer->remaining = 1;
transfer->notify = true;
transfer->direction = HOST_TO_DEVICE;
success = true;
break;
default:
break;
}
break;
case VOLUME_CONTROL:
switch (transfer->setup.bRequest) {
case REQUEST_GET_CUR:
transfer->remaining = 2;
transfer->ptr = (uint8_t *)&volCur;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case REQUEST_GET_MIN:
transfer->remaining = 2;
transfer->ptr = (uint8_t *)&volMin;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case REQUEST_GET_MAX:
transfer->remaining = 2;
transfer->ptr = (uint8_t *)&volMax;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case REQUEST_GET_RES:
transfer->remaining = 2;
transfer->ptr = (uint8_t *)&volRes;
transfer->direction = DEVICE_TO_HOST;
success = true;
break;
case REQUEST_SET_CUR:
transfer->remaining = 2;
transfer->notify = true;
transfer->direction = HOST_TO_DEVICE;
success = true;
break;
case REQUEST_SET_MIN:
transfer->remaining = 2;
transfer->notify = true;
transfer->direction = HOST_TO_DEVICE;
success = true;
break;
case REQUEST_SET_MAX:
transfer->remaining = 2;
transfer->notify = true;
transfer->direction = HOST_TO_DEVICE;
success = true;
break;
case REQUEST_SET_RES:
transfer->remaining = 2;
transfer->notify = true;
transfer->direction = HOST_TO_DEVICE;
success = true;
break;
}
break;
default:
break;
}
}
}
}
return success;
}
// Called in ISR context
// Called by USBDevice on Endpoint0 request
// This is used to handle extensions to standard requests
// and class specific requests
// Return true if class handles this request
bool USBHID::USBCallback_request() {
bool success = false;
CONTROL_TRANSFER * transfer = getTransferPtr();
uint8_t *hidDescriptor;
// Process additional standard requests
if ((transfer->setup.bmRequestType.Type == STANDARD_TYPE))
{
switch (transfer->setup.bRequest)
{
case GET_DESCRIPTOR:
switch (DESCRIPTOR_TYPE(transfer->setup.wValue))
{
case REPORT_DESCRIPTOR:
if ((reportDesc() != NULL) \
&& (reportDescLength() != 0))
{
transfer->remaining = reportDescLength();
transfer->ptr = reportDesc();
transfer->direction = DEVICE_TO_HOST;
success = true;
}
break;
case HID_DESCRIPTOR:
// Find the HID descriptor, after the configuration descriptor
hidDescriptor = findDescriptor(HID_DESCRIPTOR);
if (hidDescriptor != NULL)
{
transfer->remaining = HID_DESCRIPTOR_LENGTH;
transfer->ptr = hidDescriptor;
transfer->direction = DEVICE_TO_HOST;
success = true;
}
break;
default:
break;
}
break;
default:
break;
}
}
// Process class-specific requests
if (transfer->setup.bmRequestType.Type == CLASS_TYPE)
{
switch (transfer->setup.bRequest)
{
case SET_REPORT:
// First byte will be used for report ID
outputReport.data[0] = transfer->setup.wValue & 0xff;
outputReport.length = transfer->setup.wLength + 1;
transfer->remaining = sizeof(outputReport.data) - 1;
transfer->ptr = &outputReport.data[1];
transfer->direction = HOST_TO_DEVICE;
transfer->notify = true;
success = true;
default:
break;
}
}
return success;
}
