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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4575 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2012-08-17 12:40:48 +00:00
parent 0969ab51e5
commit e372aabda9
3 changed files with 35 additions and 19 deletions
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4
os/hal/include/serial_usb.h
View File

@ -92,10 +92,6 @@ typedef struct {
* @brief USB driver to use.
*/
USBDriver *usbp;
/**
* @brief USB driver configuration structure.
*/
USBConfig usb_config;
} SerialUSBConfig;
/**

21
os/hal/src/serial_usb.c
View File

@ -223,7 +223,6 @@ void sduStart(SerialUSBDriver *sdup, const SerialUSBConfig *config) {
config->usbp->param = sdup;
sdup->state = SDU_READY;
chSysUnlock();
usbStart(config->usbp, &config->usb_config);
}
/**
@ -245,7 +244,6 @@ void sduStop(SerialUSBDriver *sdup) {
"invalid state");
sdup->state = SDU_STOP;
chSysUnlock();
usbStop(sdup->config->usbp);
}
/**
@ -322,12 +320,23 @@ void sduDataTransmitted(USBDriver *usbp, usbep_t ep) {
so it is safe to transmit without a check.*/
chSysUnlockFromIsr();
usbPrepareQueuedTransmit(usbp,
USB_CDC_DATA_REQUEST_EP,
&sdup->oqueue, n);
usbPrepareQueuedTransmit(usbp, ep, &sdup->oqueue, n);
chSysLockFromIsr();
usbStartTransmitI(usbp, USB_CDC_DATA_REQUEST_EP);
usbStartTransmitI(usbp, ep);
}
else if (!(usbp->epc[ep]->in_state->txsize &
(usbp->epc[ep]->in_maxsize - 1))) {
/* Transmit zero sized packet in case the last one has maximum allowed
size. Otherwise the recipient may expect more data coming soon and
not return buffered data to app. See section 5.8.3 Bulk Transfer
Packet Size Constraints of the USB Specification document.*/
chSysUnlockFromIsr();
usbPrepareQueuedTransmit(usbp, ep, &sdup->oqueue, 0);
chSysLockFromIsr();
usbStartTransmitI(usbp, ep);
}
chSysUnlockFromIsr();

29
testhal/STM32F4xx/USB_CDC/main.c
View File

@ -323,17 +323,21 @@ static void usb_event(USBDriver *usbp, usbevent_t event) {
return;
}
/*
* USB driver configuration.
*/
static const USBConfig usbcfg = {
usb_event,
get_descriptor,
sduRequestsHook,
NULL
};
/*
* Serial over USB driver configuration.
*/
static const SerialUSBConfig serusbcfg = {
&USBD1,
{
usb_event,
get_descriptor,
sduRequestsHook,
NULL
}
&USBD1
};
/*===========================================================================*/
@ -479,13 +483,20 @@ int main(void) {
halInit();
chSysInit();
/*
* Initializes a serial-over-USB CDC driver.
*/
sduObjectInit(&SDU1);
sduStart(&SDU1, &serusbcfg);
/*
* Activates the USB driver and then the USB bus pull-up on D+.
* Note, a delay is inserted in order to not have to disconnect the cable
* after a reset.
*/
usbDisconnectBus(serusbcfg.usbp);
chThdSleepMilliseconds(1000);
sduObjectInit(&SDU1);
sduStart(&SDU1, &serusbcfg);
usbStart(&USBD1, &usbcfg);
usbConnectBus(serusbcfg.usbp);
/*