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Modified the STM32 OTGv1 driver to work without pump thread, transfers are now done in the ISR. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10974 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Giovanni Di Sirio 2017-11-08 11:14:06 +00:00
parent 44d5a9d084
commit 881cec6c77
4 changed files with 57 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c
View File

@ -325,8 +325,12 @@ static bool otg_txfifo_handler(USBDriver *usbp, usbep_t ep) {
uint32_t n;
/* Transaction end condition.*/
if (usbp->epc[ep]->in_state->txcnt >= usbp->epc[ep]->in_state->txsize)
if (usbp->epc[ep]->in_state->txcnt >= usbp->epc[ep]->in_state->txsize) {
#if 1
usbp->otg->DIEPEMPMSK &= ~DIEPEMPMSK_INEPTXFEM(ep);
#endif
return true;
}
/* Number of bytes remaining in current transaction.*/
n = usbp->epc[ep]->in_state->txsize - usbp->epc[ep]->in_state->txcnt;
@ -345,10 +349,10 @@ static bool otg_txfifo_handler(USBDriver *usbp, usbep_t ep) {
usbp->epc[ep]->in_state->txbuf,
n);
usbp->epc[ep]->in_state->txbuf += n;
usbp->epc[ep]->in_state->txcnt += n;
#if STM32_USB_OTGFIFO_FILL_BASEPRI
__set_BASEPRI(0);
#endif
usbp->epc[ep]->in_state->txcnt += n;
}
}
@ -390,12 +394,17 @@ static void otg_epin_handler(USBDriver *usbp, usbep_t ep) {
}
if ((epint & DIEPINT_TXFE) &&
(otgp->DIEPEMPMSK & DIEPEMPMSK_INEPTXFEM(ep))) {
#if 0
/* The thread is made ready, it will be scheduled on ISR exit.*/
osalSysLockFromISR();
usbp->txpending |= (1 << ep);
otgp->DIEPEMPMSK &= ~(1 << ep);
osalThreadResumeI(&usbp->wait, MSG_OK);
osalSysUnlockFromISR();
#else
/* TX FIFO empty or emptying.*/
otg_txfifo_handler(usbp, ep);
#endif
}
}
@ -483,12 +492,17 @@ static void otg_isoc_in_failed_handler(USBDriver *usbp) {
/* Prepare data for next frame */
_usb_isr_invoke_in_cb(usbp, ep);
#if 0
/* Pump out data for next frame */
osalSysLockFromISR();
otgp->DIEPEMPMSK &= ~(1 << ep);
usbp->txpending |= (1 << ep);
osalThreadResumeI(&usbp->wait, MSG_OK);
osalSysUnlockFromISR();
#else
/* TX FIFO empty or emptying.*/
otg_txfifo_handler(usbp, ep);
#endif
}
}
}
@ -536,10 +550,10 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) {
/* Reset interrupt handling.*/
if (sts & GINTSTS_USBRST) {
#if 0
/* Resetting pending operations.*/
usbp->txpending = 0;
#endif
/* Default reset action.*/
_usb_reset(usbp);
@ -564,10 +578,10 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) {
/* Suspend handling.*/
if (sts & GINTSTS_USBSUSP) {
#if 0
/* Resetting pending operations.*/
usbp->txpending = 0;
#endif
/* Default suspend action.*/
_usb_suspend(usbp);
}
@ -601,6 +615,7 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) {
}
/* RX FIFO not empty handling.*/
#if 0
if (sts & GINTSTS_RXFLVL) {
/* The interrupt is masked while the thread has control or it would
be triggered again.*/
@ -609,6 +624,13 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) {
osalThreadResumeI(&usbp->wait, MSG_OK);
osalSysUnlockFromISR();
}
#else
/* Performing the whole FIFO emptying in the ISR, it is advised to keep
this IRQ at a very low priority level.*/
if ((sts & GINTSTS_RXFLVL) != 0U) {
otg_rxfifo_handler(usbp);
}
#endif
/* IN/OUT endpoints event handling.*/
src = otgp->DAINT;
@ -724,10 +746,13 @@ void usb_lld_init(void) {
/* Driver initialization.*/
#if STM32_USB_USE_OTG1
usbObjectInit(&USBD1);
#if 0
USBD1.wait = NULL;
#endif
USBD1.otg = OTG_FS;
USBD1.otgparams = &fsparams;
#if 0
#if defined(_CHIBIOS_RT_)
USBD1.tr = NULL;
/* Filling the thread working area here because the function
@ -742,13 +767,17 @@ void usb_lld_init(void) {
#endif /* CH_DBG_FILL_THREADS */
#endif /* defined(_CHIBIOS_RT_) */
#endif
#endif
#if STM32_USB_USE_OTG2
usbObjectInit(&USBD2);
#if 0
USBD2.wait = NULL;
#endif
USBD2.otg = OTG_HS;
USBD2.otgparams = &hsparams;
#if 0
#if defined(_CHIBIOS_RT_)
USBD2.tr = NULL;
/* Filling the thread working area here because the function
@ -763,6 +792,7 @@ void usb_lld_init(void) {
#endif /* CH_DBG_FILL_THREADS */
#endif /* defined(_CHIBIOS_RT_) */
#endif
#endif
}
/**
@ -846,9 +876,10 @@ void usb_lld_start(USBDriver *usbp) {
}
#endif
#if 0
/* Clearing mask of TXFIFOs to be filled.*/
usbp->txpending = 0;
#endif
/* PHY enabled.*/
otgp->PCGCCTL = 0;
@ -898,6 +929,7 @@ void usb_lld_start(USBDriver *usbp) {
/* Clears all pending IRQs, if any. */
otgp->GINTSTS = 0xFFFFFFFF;
#if 0
#if defined(_CHIBIOS_RT_)
/* Creates the data pump thread. Note, it is created only once.*/
if (usbp->tr == NULL) {
@ -914,7 +946,7 @@ void usb_lld_start(USBDriver *usbp) {
chSchRescheduleS();
}
#endif
#endif
/* Global interrupts enable.*/
otgp->GAHBCFG |= GAHBCFG_GINTMSK;
}
@ -937,8 +969,9 @@ void usb_lld_stop(USBDriver *usbp) {
active.*/
otg_disable_ep(usbp);
#if 0
usbp->txpending = 0;
#endif
otgp->DAINTMSK = 0;
otgp->GAHBCFG = 0;
otgp->GCCFG = 0;
@ -1317,6 +1350,7 @@ void usb_lld_clear_in(USBDriver *usbp, usbep_t ep) {
usbp->otg->ie[ep].DIEPCTL &= ~DIEPCTL_STALL;
}
#if 0
/**
* @brief USB data transfer loop.
* @details This function must be executed by a system thread in order to
@ -1381,6 +1415,7 @@ void usb_lld_pump(void *p) {
osalSysLock();
}
}
#endif
#endif /* HAL_USE_USB */

2
os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h
View File

@ -508,6 +508,7 @@ struct USBDriver {
* @brief Pointer to the next address in the packet memory.
*/
uint32_t pmnext;
#if 0
/**
* @brief Mask of TXFIFOs to be filled by the pump thread.
*/
@ -526,6 +527,7 @@ struct USBDriver {
*/
THD_WORKING_AREA(wa_pump, STM32_USB_OTG_THREAD_STACK_SIZE);
#endif
#endif
};
/*===========================================================================*/

2
readme.txt
View File

@ -89,6 +89,8 @@
*****************************************************************************
*** Next ***
- NEW: Modified the STM32 OTGv1 driver to work without pump thread, transfers
are now done in the ISR.
- NEW: Added I-class functions to the serial driver: sdGetI(), sdReadI(),
sdPutI() and sdWriteI().
- NEW: Modified the HAL queues to improve performance. Added new

15
testhal/STM32/multi/USB_CDC/.cproject
View File

@ -175,12 +175,6 @@
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
<project id="STM32-USB_CDC.null.932840044" name="STM32-USB_CDC"/>
</storageModule>
<storageModule moduleId="scannerConfiguration">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
<scannerConfigBuildInfo instanceId="0.1093754934">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
</scannerConfigBuildInfo>
</storageModule>
<storageModule moduleId="refreshScope" versionNumber="2">
<configuration configurationName="Build for STM32F407-Discovery"/>
<configuration configurationName="Build for STM32F303-Discovery"/>
@ -192,4 +186,13 @@
</configuration>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
<storageModule moduleId="scannerConfiguration">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
<scannerConfigBuildInfo instanceId="0.1093754934">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
</scannerConfigBuildInfo>
<scannerConfigBuildInfo instanceId="0.1093754934.1600162136">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
</scannerConfigBuildInfo>
</storageModule>
</cproject>