diff options
Diffstat (limited to 'examples/custom-class/firmware')
| -rw-r--r-- | examples/custom-class/firmware/main.c | 11 | ||||
| -rw-r--r-- | examples/custom-class/firmware/requests.h | 4 |
2 files changed, 13 insertions, 2 deletions
diff --git a/examples/custom-class/firmware/main.c b/examples/custom-class/firmware/main.c index 940f62e..e12ef00 100644 --- a/examples/custom-class/firmware/main.c +++ b/examples/custom-class/firmware/main.c @@ -37,15 +37,22 @@ different port or bit, change the macros below: usbMsgLen_t usbFunctionSetup(uchar data[8]) { usbRequest_t *rq = (void *)data; +static uchar dataBuffer[4]; /* buffer must stay valid when usbFunctionSetup returns */ - if(rq->bRequest == CUSTOM_RQ_SET_STATUS){ + if(rq->bRequest == CUSTOM_RQ_ECHO){ /* echo -- used for reliability tests */ + dataBuffer[0] = rq->wValue.bytes[0]; + dataBuffer[1] = rq->wValue.bytes[1]; + dataBuffer[2] = rq->wIndex.bytes[0]; + dataBuffer[3] = rq->wIndex.bytes[1]; + usbMsgPtr = dataBuffer; /* tell the driver which data to return */ + return 4; + }else if(rq->bRequest == CUSTOM_RQ_SET_STATUS){ if(rq->wValue.bytes[0] & 1){ /* set LED */ LED_PORT_OUTPUT |= _BV(LED_BIT); }else{ /* clear LED */ LED_PORT_OUTPUT &= ~_BV(LED_BIT); } }else if(rq->bRequest == CUSTOM_RQ_GET_STATUS){ - static uchar dataBuffer[1]; /* buffer must stay valid when usbFunctionSetup returns */ dataBuffer[0] = ((LED_PORT_OUTPUT & _BV(LED_BIT)) != 0); usbMsgPtr = dataBuffer; /* tell the driver which data to return */ return 1; /* tell the driver to send 1 byte */ diff --git a/examples/custom-class/firmware/requests.h b/examples/custom-class/firmware/requests.h index b6a3c2b..2e7fac3 100644 --- a/examples/custom-class/firmware/requests.h +++ b/examples/custom-class/firmware/requests.h @@ -16,6 +16,10 @@ #ifndef __REQUESTS_H_INCLUDED__ #define __REQUESTS_H_INCLUDED__ +#define CUSTOM_RQ_ECHO 0 +/* Request that the device sends back wValue and wIndex. This is used with + * random data to test the reliability of the communication. + */ #define CUSTOM_RQ_SET_STATUS 1 /* Set the LED status. Control-OUT. * The requested status is passed in the "wValue" field of the control |