andreika-git
/
ChibiOS
mirror of https://github.com/andreika-git/ChibiOS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15067 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

This commit is contained in:
Giovanni Di Sirio 2021-11-12 13:07:04 +00:00
parent 5c4e6026ee
commit 6c56f1a1c7
5 changed files with 1534 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
os/hal/ports/STM32/LLD/USBv2/driver.mk Normal file
View File

@ -0,0 +1,9 @@
ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_USB TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv2/hal_usb_lld.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv2/hal_usb_lld.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv2

991
os/hal/ports/STM32/LLD/USBv2/hal_usb_lld.c Normal file
View File

@ -0,0 +1,991 @@
/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file USBv2/hal_usb_lld.c
* @brief STM32 USB subsystem low level driver source.
*
* @addtogroup USB
* @{
*/
#include <string.h>
#include "hal.h"
#if HAL_USE_USB || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#define BTABLE_ADDR 0x0000
#define EPR_EP_TYPE_IS_ISO(bits) ((bits & EPR_EP_TYPE_MASK) == EPR_EP_TYPE_ISO)
/**
* @brief Returns an endpoint descriptor pointer.
*/
#define USB_GET_DESCRIPTOR(ep) (&USB_DRD_PMA_BUFF[ep])
/**
* @brief Gets the address of a RX buffer.
*/
#define USB_GET_RX_BUFFER(udp) (uint32_t *)(USB_DRD_PMAADDR + \
((udp)->RXBD & 0x0000FFFFU))
/**
* @brief Gets the address of a TX buffer.
*/
#define USB_GET_TX_BUFFER(ep) (uint32_t *)(USB_DRD_PMAADDR + \
((udp)->TXBD & 0x0000FFFFU))
/**
* @brief Gets the counter 0 of a RX buffer.
*/
#define USB_GET_RX_COUNT0(udp) (size_t)(((udp)->RXBD >> 16) & 0x000003FFU)
/**
* @brief Gets the counter 0 of a RX buffer.
*/
#define USB_GET_TX_COUNT0(udp) (size_t)(((udp)->TXBD >> 16) & 0x000003FFU)
/**
* @brief Gets the counter 1 of a RX buffer.
*/
#define USB_GET_RX_COUNT1(udp) USB_GET_TX_COUNT0(udp)
/**
* @brief Gets the counter 1 of a TX buffer.
*/
#define USB_GET_TX_COUNT1(udp) USB_GET_RX_COUNT0(udp)
/**
* @brief Sets the counter 0 of a RX buffer.
*/
#define USB_SET_RX_COUNT0(udp, n) do { \
(udp)->RXBD = (((udp)->RXBD & ~0x03FF0000U) | ((uint32_t)(n) << 16)); \
} while (false)
/**
* @brief Sets the counter 0 of a TX buffer.
*/
#define USB_SET_TX_COUNT0(udp, n) do { \
(udp)->TXBD = (((udp)->TXBD & ~0x03FF0000U) | ((uint32_t)(n) << 16)); \
} while (false)
/**
* @brief Sets the counter 1 of a RX buffer.
*/
#define USB_SET_RX_COUNT1(udp, n) USB_SET_TX_COUNT0(udp, n)
/**
* @brief Sets the counter 1 of a TX buffer.
*/
#define USB_SET_TX_COUNT1(udp, n) USB_SET_RX_COUNT0(udp, n)
/**
* @brief Mask of all the toggling bits in the EPR register.
*/
#define CHEPR_TOGGLE_MASK (USB_CHEP_TX_STTX_Msk | \
USB_CHEP_DTOG_TX_Msk | \
USB_CHEP_RX_STRX_Msk | \
USB_CHEP_DTOG_RX_Msk | \
USB_CHEP_SETUP_Msk)
/**
* @brief Clears the VTRX bit.
*/
#define CHEPR_CLEAR_VTRX(usbp, ep) \
(usbp)->usb->CHEPR[ep] = ((usbp)->usb->CHEPR[ep] & ~USB_EP_VTRX & ~CHEPR_TOGGLE_MASK) | USB_EP_VTTX
/**
* @brief Clears the VTTX bit.
*/
#define CHEPR_CLEAR_VTTX(usbp, ep) \
(usbp)->usb->CHEPR[ep] = ((usbp)->usb->CHEPR[ep] & ~USB_EP_VTTX & ~CHEPR_TOGGLE_MASK) | USB_EP_VTRX
/**
* @brief Sets the STATRX field.
*/
#define CHEPR_SET_STATRX(usbp, ep, epr) \
(usbp)->usb->CHEPR[ep] = (((usbp)->usb->CHEPR[ep] & \
~(CHEPR_TOGGLE_MASK & ~USB_CHEP_RX_STRX_Msk)) ^ \
(epr)) | EPR_CTR_MASK
/**
* @brief Sets the STATTX field.
*/
#define CHEPR_SET_STATTX(usbp, ep, epr) \
(usbp)->usb->CHEPR[ep] = (((usbp)->usb->CHEPR[ep] & \
~(CHEPR_TOGGLE_MASK & ~USB_CHEP_TX_STTX_Msk)) ^ \
(epr)) | EPR_CTR_MASK
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/** @brief USB1 driver identifier.*/
#if STM32_USB_USE_USB1 || defined(__DOXYGEN__)
USBDriver USBD1;
#endif
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/**
* @brief EP0 state.
* @note It is an union because IN and OUT endpoints are never used at the
* same time for EP0.
*/
static union {
/**
* @brief IN EP0 state.
*/
USBInEndpointState in;
/**
* @brief OUT EP0 state.
*/
USBOutEndpointState out;
} ep0_state;
/**
* @brief Buffer for the EP0 setup packets.
*/
static uint8_t ep0setup_buffer[8];
/**
* @brief EP0 initialization structure.
*/
static const USBEndpointConfig ep0config = {
USB_EP_MODE_TYPE_CTRL,
_usb_ep0setup,
_usb_ep0in,
_usb_ep0out,
0x40,
0x40,
&ep0_state.in,
&ep0_state.out,
1,
ep0setup_buffer
};
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/**
* @brief Resets the packet memory allocator.
*
* @param[in] usbp pointer to the @p USBDriver object
*/
static void usb_pm_reset(USBDriver *usbp) {
/* The first 64 bytes are reserved for the descriptors table. The effective
available RAM.*/
usbp->pmnext = 64U;
}
/**
* @brief Resets the packet memory allocator.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] size size of the packet buffer to allocate
* @return The packet buffer address.
*/
static uint32_t usb_pm_alloc(USBDriver *usbp, size_t size) {
uint32_t next;
next = usbp->pmnext;
usbp->pmnext += (size + 3) & ~3;
osalDbgAssert(usbp->pmnext <= STM32_USB_PMA_SIZE, "PMA overflow");
return next;
}
/**
* @brief Reads from a dedicated packet buffer.
*
* @param[in] ep endpoint number
* @param[out] buf buffer where to copy the packet data
* @return The size of the receivee packet.
*
* @notapi
*/
static size_t usb_packet_read_to_buffer(usbep_t ep, uint8_t *buf) {
size_t i, n;
uint32_t w;
USB_DRD_PMABuffDescTypeDef *udp = USB_GET_DESCRIPTOR(ep);
uint32_t *pmap = USB_GET_RX_BUFFER(udp);
#if STM32_USB_USE_ISOCHRONOUS
uint32_t epr = STM32_USB->EPR[ep];
/* Double buffering is always enabled for isochronous endpoints, and
although we overlap the two buffers for simplicity, we still need
to read from the right counter. The DTOG_RX bit indicates the buffer
that is currently in use by the USB peripheral, that is, the buffer
in which the next received packet will be stored, so we need to
read the counter of the OTHER buffer, which is where the last
received packet was stored.*/
if (EPR_EP_TYPE_IS_ISO(epr) && !(epr & EPR_DTOG_RX)) {
n = USB_GET_RX_COUNT1(udp);
}
else {
n = USB_GET_RX_COUNT0(udp);
}
#else
n = USB_GET_RX_COUNT0(udp);
#endif
i = n;
#if STM32_USB_USE_FAST_COPY /* TODO */
while (i >= 16) {
uint32_t w;
w = *(pmap + 0);
*(buf + 0) = (uint8_t)w;
*(buf + 1) = (uint8_t)(w >> 8);
w = *(pmap + 1);
*(buf + 2) = (uint8_t)w;
*(buf + 3) = (uint8_t)(w >> 8);
w = *(pmap + 2);
*(buf + 4) = (uint8_t)w;
*(buf + 5) = (uint8_t)(w >> 8);
w = *(pmap + 3);
*(buf + 6) = (uint8_t)w;
*(buf + 7) = (uint8_t)(w >> 8);
w = *(pmap + 4);
*(buf + 8) = (uint8_t)w;
*(buf + 9) = (uint8_t)(w >> 8);
w = *(pmap + 5);
*(buf + 10) = (uint8_t)w;
*(buf + 11) = (uint8_t)(w >> 8);
w = *(pmap + 6);
*(buf + 12) = (uint8_t)w;
*(buf + 13) = (uint8_t)(w >> 8);
w = *(pmap + 7);
*(buf + 14) = (uint8_t)w;
*(buf + 15) = (uint8_t)(w >> 8);
i -= 16;
buf += 16;
pmap += 8;
}
#endif /* STM32_USB_USE_FAST_COPY */
while (i >= 4U) {
w = *pmap++;
if (i < 4U) {
break;
}
*buf++ = (uint8_t)w;
*buf++ = (uint8_t)(w >> 8);
*buf++ = (uint8_t)(w >> 16);
*buf++ = (uint8_t)(w >> 24);
i -= 4U;
}
if (i >= 1) { /* TODO */
*buf = (uint8_t)*pmap;
}
return n;
}
/**
* @brief Writes to a dedicated packet buffer.
*
* @param[in] ep endpoint number
* @param[in] buf buffer where to fetch the packet data
* @param[in] n maximum number of bytes to copy. This value must
* not exceed the maximum packet size for this endpoint.
*
* @notapi
*/
static void usb_packet_write_from_buffer(usbep_t ep,
const uint8_t *buf,
size_t n) {
USB_DRD_PMABuffDescTypeDef *udp = USB_GET_DESCRIPTOR(ep);
uint32_t *pmap = USB_GET_TX_BUFFER(udp);
int i = (int)n;
#if STM32_USB_USE_ISOCHRONOUS
uint32_t epr = STM32_USB->EPR[ep];
/* Double buffering is always enabled for isochronous endpoints, and
although we overlap the two buffers for simplicity, we still need
to write to the right counter. The DTOG_TX bit indicates the buffer
that is currently in use by the USB peripheral, that is, the buffer
from which the next packet will be sent, so we need to write the
counter of that buffer.*/
if (EPR_EP_TYPE_IS_ISO(epr) && (epr & EPR_DTOG_TX)) {
USB_SET_TX_COUNT1(udp, n);
}
else {
USB_SET_TX_COUNT0(udp, n);
}
#else
USB_SET_TX_COUNT0(udp, n);
#endif
#if STM32_USB_USE_FAST_COPY /* TODO */
while (i >= 16) {
uint32_t w;
w = *(buf + 0);
w |= *(buf + 1) << 8;
*(pmap + 0) = (stm32_usb_pma_t)w;
w = *(buf + 2);
w |= *(buf + 3) << 8;
*(pmap + 1) = (stm32_usb_pma_t)w;
w = *(buf + 4);
w |= *(buf + 5) << 8;
*(pmap + 2) = (stm32_usb_pma_t)w;
w = *(buf + 6);
w |= *(buf + 7) << 8;
*(pmap + 3) = (stm32_usb_pma_t)w;
w = *(buf + 8);
w |= *(buf + 9) << 8;
*(pmap + 4) = (stm32_usb_pma_t)w;
w = *(buf + 10);
w |= *(buf + 11) << 8;
*(pmap + 5) = (stm32_usb_pma_t)w;
w = *(buf + 12);
w |= *(buf + 13) << 8;
*(pmap + 6) = (stm32_usb_pma_t)w;
w = *(buf + 14);
w |= *(buf + 15) << 8;
*(pmap + 7) = (stm32_usb_pma_t)w;
i -= 16;
buf += 16;
pmap += 8;
}
#endif /* STM32_USB_USE_FAST_COPY */
while (i > 0) {
uint32_t w;
w = (uint32_t)(*buf++);
w |= (uint32_t)(*buf++) << 8;
w |= (uint32_t)(*buf++) << 16;
w |= (uint32_t)(*buf++) << 24;
*pmap++ = w;
i -= 4U;
}
}
/**
* @brief Common ISR code, serves the EP-related interrupts.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
static void usb_serve_endpoints(USBDriver *usbp, uint32_t ep) {
size_t n;
uint32_t chepr = usbp->usb->CHEPR[ep];
const USBEndpointConfig *epcp = usbp->epc[ep];
if (chepr & USB_EP_VTTX) {
/* IN endpoint, transmission.*/
USBInEndpointState *isp = epcp->in_state;
CHEPR_CLEAR_VTTX(usbp, ep);
isp->txcnt += isp->txlast;
n = isp->txsize - isp->txcnt;
if (n > 0) {
/* Transfer not completed, there are more packets to send.*/
if (n > epcp->in_maxsize)
n = epcp->in_maxsize;
/* Writes the packet from the defined buffer.*/
isp->txbuf += isp->txlast;
isp->txlast = n;
usb_packet_write_from_buffer(ep, isp->txbuf, n);
/* Starting IN operation.*/
CHEPR_SET_STATTX(usbp, ep, EPR_STAT_TX_VALID);
}
else {
/* Transfer completed, invokes the callback.*/
_usb_isr_invoke_in_cb(usbp, ep);
}
}
if (chepr & USB_EP_VTRX) {
/* OUT endpoint, receive.*/
CHEPR_CLEAR_VTRX(usbp, ep);
if (chepr & USB_EP_SETUP) {
/* Setup packets handling, setup packets are handled using a
specific callback.*/
_usb_isr_invoke_setup_cb(usbp, ep);
}
else {
USBOutEndpointState *osp = epcp->out_state;
/* Reads the packet into the defined buffer.*/
n = usb_packet_read_to_buffer(ep, osp->rxbuf);
osp->rxbuf += n;
/* Transaction data updated.*/
osp->rxcnt += n;
osp->rxsize -= n;
osp->rxpkts -= 1;
/* The transaction is completed if the specified number of packets
has been received or the current packet is a short packet.*/
if ((n < epcp->out_maxsize) || (osp->rxpkts == 0)) {
/* Transfer complete, invokes the callback.*/
_usb_isr_invoke_out_cb(usbp, ep);
}
else {
/* Transfer not complete, there are more packets to receive.*/
CHEPR_SET_STATRX(usbp, ep, EPR_STAT_RX_VALID);
}
}
}
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
#if STM32_USB_USE_USB1 || defined(__DOXYGEN__)
#if STM32_USB1_HP_NUMBER != STM32_USB1_LP_NUMBER
#if STM32_USB_USE_ISOCHRONOUS
/**
* @brief USB high priority interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_USB1_HP_HANDLER) {
uint32_t istr;
USBDriver *usbp = &USBD1;
OSAL_IRQ_PROLOGUE();
/* Endpoint events handling.*/
istr = STM32_USB->ISTR;
while (istr & ISTR_CTR) {
usb_serve_endpoints(usbp, istr & ISTR_EP_ID_MASK);
istr = STM32_USB->ISTR;
}
OSAL_IRQ_EPILOGUE();
}
#endif /* STM32_USB_USE_ISOCHRONOUS */
#endif /* STM32_USB1_LP_NUMBER != STM32_USB1_HP_NUMBER */
/**
* @brief USB low priority interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_USB1_LP_HANDLER) {
uint32_t istr;
USBDriver *usbp = &USBD1;
OSAL_IRQ_PROLOGUE();
istr = STM32_USB->ISTR;
/* USB bus reset condition handling.*/
if (istr & ISTR_RESET) {
STM32_USB->ISTR = ~ISTR_RESET;
_usb_reset(usbp);
}
/* USB bus SUSPEND condition handling.*/
if (istr & ISTR_SUSP) {
STM32_USB->CNTR |= CNTR_FSUSP;
#if STM32_USB_LOW_POWER_ON_SUSPEND
STM32_USB->CNTR |= CNTR_LP_MODE;
#endif
STM32_USB->ISTR = ~ISTR_SUSP;
_usb_suspend(usbp);
}
/* USB bus WAKEUP condition handling.*/
if (istr & ISTR_WKUP) {
uint32_t fnr = STM32_USB->FNR;
if (!(fnr & FNR_RXDP)) {
STM32_USB->CNTR &= ~CNTR_FSUSP;
_usb_wakeup(usbp);
}
#if STM32_USB_LOW_POWER_ON_SUSPEND
else {
/* Just noise, going back in SUSPEND mode, reference manual 22.4.5,
table 169.*/
STM32_USB->CNTR |= CNTR_LP_MODE;
}
#endif
STM32_USB->ISTR = ~ISTR_WKUP;
}
/* SOF handling.*/
if (istr & ISTR_SOF) {
_usb_isr_invoke_sof_cb(usbp);
STM32_USB->ISTR = ~ISTR_SOF;
}
/* Endpoint events handling.*/
while (istr & ISTR_CTR) {
usb_serve_endpoints(usbp, istr & ISTR_EP_ID_MASK);
istr = STM32_USB->ISTR;
}
OSAL_IRQ_EPILOGUE();
}
#endif /* STM32_USB_USE_USB1 */
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level USB driver initialization.
*
* @notapi
*/
void usb_lld_init(void) {
/* Driver initialization.*/
usbObjectInit(&USBD1);
}
/**
* @brief Configures and activates the USB peripheral.
*
* @param[in] usbp pointer to the @p USBDriver object
*
* @notapi
*/
void usb_lld_start(USBDriver *usbp) {
if (usbp->state == USB_STOP) {
/* Clock activation.*/
#if STM32_USB_USE_USB1
if (&USBD1 == usbp) {
osalDbgAssert((STM32_USBCLK >= (48000000U - STM32_USB_48MHZ_DELTA)) &&
(STM32_USBCLK <= (48000000U + STM32_USB_48MHZ_DELTA)),
"invalid clock frequency");
/* USB clock enabled.*/
rccEnableUSB(true);
/* Powers up the transceiver while holding the USB in reset state.*/
STM32_USB->CNTR = CNTR_FRES;
/* Enabling the USB IRQ vectors, this also gives enough time to allow
the transceiver power up (1uS).*/
#if STM32_USB1_HP_NUMBER != STM32_USB1_LP_NUMBER
nvicEnableVector(STM32_USB1_HP_NUMBER, STM32_USB_USB1_HP_IRQ_PRIORITY);
#endif
nvicEnableVector(STM32_USB1_LP_NUMBER, STM32_USB_USB1_LP_IRQ_PRIORITY);
/* Releases the USB reset.*/
STM32_USB->CNTR = 0;
}
#endif
/* Reset procedure enforced on driver start.*/
usb_lld_reset(usbp);
}
}
/**
* @brief Deactivates the USB peripheral.
*
* @param[in] usbp pointer to the @p USBDriver object
*
* @notapi
*/
void usb_lld_stop(USBDriver *usbp) {
/* If in ready state then disables the USB clock.*/
if (usbp->state != USB_STOP) {
#if STM32_USB_USE_USB1
if (&USBD1 == usbp) {
#if STM32_USB1_HP_NUMBER != STM32_USB1_LP_NUMBER
nvicDisableVector(STM32_USB1_HP_NUMBER);
#endif
nvicDisableVector(STM32_USB1_LP_NUMBER);
STM32_USB->CNTR = CNTR_PDWN | CNTR_FRES;
rccDisableUSB();
}
#endif
}
}
/**
* @brief USB low level reset routine.
*
* @param[in] usbp pointer to the @p USBDriver object
*
* @notapi
*/
void usb_lld_reset(USBDriver *usbp) {
uint32_t cntr;
/* Post reset initialization.*/
STM32_USB->BTABLE = BTABLE_ADDR;
STM32_USB->ISTR = 0;
STM32_USB->DADDR = DADDR_EF;
cntr = /* CNTR_ESOFM | */ CNTR_RESETM | CNTR_SUSPM |
CNTR_WKUPM | /* CNTR_ERRM | CNTR_PMAOVRM |*/ CNTR_CTRM;
/* The SOF interrupt is only enabled if a callback is defined for
this service because it is an high rate source.*/
if (usbp->config->sof_cb != NULL)
cntr |= CNTR_SOFM;
STM32_USB->CNTR = cntr;
/* Resets the packet memory allocator.*/
usb_pm_reset(usbp);
/* EP0 initialization.*/
usbp->epc[0] = &ep0config;
usb_lld_init_endpoint(usbp, 0);
}
/**
* @brief Sets the USB address.
*
* @param[in] usbp pointer to the @p USBDriver object
*
* @notapi
*/
void usb_lld_set_address(USBDriver *usbp) {
STM32_USB->DADDR = (uint32_t)(usbp->address) | DADDR_EF;
}
/**
* @brief Enables an endpoint.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_init_endpoint(USBDriver *usbp, usbep_t ep) {
uint16_t epr;
USB_DRD_PMABuffDescTypeDef *dp;
const USBEndpointConfig *epcp = usbp->epc[ep];
/* Setting the endpoint type. Note that isochronous endpoints cannot be
bidirectional because it uses double buffering and both transmit and
receive descriptor fields are used for either direction.*/
switch (epcp->ep_mode & USB_EP_MODE_TYPE) {
case USB_EP_MODE_TYPE_ISOC:
#if STM32_USB_USE_ISOCHRONOUS
osalDbgAssert((epcp->in_state == NULL) || (epcp->out_state == NULL),
"isochronous EP cannot be IN and OUT");
epr = EPR_EP_TYPE_ISO;
break;
#else
osalDbgAssert(false, "isochronous support disabled");
#endif
/* Falls through.*/
case USB_EP_MODE_TYPE_BULK:
epr = EPR_EP_TYPE_BULK;
break;
case USB_EP_MODE_TYPE_INTR:
epr = EPR_EP_TYPE_INTERRUPT;
break;
default:
epr = EPR_EP_TYPE_CONTROL;
}
dp = USB_GET_DESCRIPTOR(ep);
/* IN endpoint handling.*/
if (epcp->in_state != NULL) {
dp->TXCOUNT0 = 0;
dp->TXADDR0 = usb_pm_alloc(usbp, epcp->in_maxsize);
#if STM32_USB_USE_ISOCHRONOUS
if (epr == EPR_EP_TYPE_ISO) {
epr |= EPR_STAT_TX_VALID;
dp->TXCOUNT1 = dp->TXCOUNT0;
dp->TXADDR1 = dp->TXADDR0; /* Both buffers overlapped.*/
}
else {
epr |= EPR_STAT_TX_NAK;
}
#else
epr |= EPR_STAT_TX_NAK;
#endif
}
/* OUT endpoint handling.*/
if (epcp->out_state != NULL) {
uint16_t nblocks;
/* Endpoint size and address initialization.*/
if (epcp->out_maxsize > 62)
nblocks = (((((epcp->out_maxsize - 1) | 0x1f) + 1) / 32) << 10) |
0x8000;
else
nblocks = ((((epcp->out_maxsize - 1) | 1) + 1) / 2) << 10;
dp->RXCOUNT0 = nblocks;
dp->RXADDR0 = usb_pm_alloc(usbp, epcp->out_maxsize);
#if STM32_USB_USE_ISOCHRONOUS
if (epr == EPR_EP_TYPE_ISO) {
epr |= EPR_STAT_RX_VALID;
dp->RXCOUNT1 = dp->RXCOUNT0;
dp->RXADDR1 = dp->RXADDR0; /* Both buffers overlapped.*/
}
else {
epr |= EPR_STAT_RX_NAK;
}
#else
epr |= EPR_STAT_RX_NAK;
#endif
}
/* Resetting the data toggling bits for this endpoint.*/
if (STM32_USB->EPR[ep] & EPR_DTOG_RX) {
epr |= EPR_DTOG_RX;
}
if (STM32_USB->EPR[ep] & EPR_DTOG_TX) {
epr |= EPR_DTOG_TX;
}
/* EPxR register setup.*/
EPR_SET(ep, epr | ep);
EPR_TOGGLE(ep, epr);
}
/**
* @brief Disables all the active endpoints except the endpoint zero.
*
* @param[in] usbp pointer to the @p USBDriver object
*
* @notapi
*/
void usb_lld_disable_endpoints(USBDriver *usbp) {
unsigned i;
/* Resets the packet memory allocator.*/
usb_pm_reset(usbp);
/* Disabling all endpoints.*/
for (i = 1; i <= USB_ENDOPOINTS_NUMBER; i++) {
EPR_TOGGLE(i, 0);
EPR_SET(i, 0);
}
}
/**
* @brief Returns the status of an OUT endpoint.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
* @return The endpoint status.
* @retval EP_STATUS_DISABLED The endpoint is not active.
* @retval EP_STATUS_STALLED The endpoint is stalled.
* @retval EP_STATUS_ACTIVE The endpoint is active.
*
* @notapi
*/
usbepstatus_t usb_lld_get_status_out(USBDriver *usbp, usbep_t ep) {
(void)usbp;
switch (STM32_USB->EPR[ep] & EPR_STAT_RX_MASK) {
case EPR_STAT_RX_DIS:
return EP_STATUS_DISABLED;
case EPR_STAT_RX_STALL:
return EP_STATUS_STALLED;
default:
return EP_STATUS_ACTIVE;
}
}
/**
* @brief Returns the status of an IN endpoint.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
* @return The endpoint status.
* @retval EP_STATUS_DISABLED The endpoint is not active.
* @retval EP_STATUS_STALLED The endpoint is stalled.
* @retval EP_STATUS_ACTIVE The endpoint is active.
*
* @notapi
*/
usbepstatus_t usb_lld_get_status_in(USBDriver *usbp, usbep_t ep) {
(void)usbp;
switch (STM32_USB->EPR[ep] & EPR_STAT_TX_MASK) {
case EPR_STAT_TX_DIS:
return EP_STATUS_DISABLED;
case EPR_STAT_TX_STALL:
return EP_STATUS_STALLED;
default:
return EP_STATUS_ACTIVE;
}
}
/**
* @brief Reads a setup packet from the dedicated packet buffer.
* @details This function must be invoked in the context of the @p setup_cb
* callback in order to read the received setup packet.
* @pre In order to use this function the endpoint must have been
* initialized as a control endpoint.
* @post The endpoint is ready to accept another packet.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
* @param[out] buf buffer where to copy the packet data
*
* @notapi
*/
void usb_lld_read_setup(USBDriver *usbp, usbep_t ep, uint8_t *buf) {
stm32_usb_pma_t *pmap;
USB_DRD_PMABuffDescTypeDef *udp;
uint32_t n;
(void)usbp;
udp = USB_GET_DESCRIPTOR(ep);
pmap = USB_ADDR2PTR(udp->RXADDR0);
for (n = 0; n < 4; n++) {
*(uint16_t *)(void *)buf = (uint16_t)*pmap++;
buf += 2;
}
}
/**
* @brief Starts a receive operation on an OUT endpoint.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_start_out(USBDriver *usbp, usbep_t ep) {
USBOutEndpointState *osp = usbp->epc[ep]->out_state;
/* Transfer initialization.*/
if (osp->rxsize == 0) /* Special case for zero sized packets.*/
osp->rxpkts = 1;
else
osp->rxpkts = (uint16_t)((osp->rxsize + usbp->epc[ep]->out_maxsize - 1) /
usbp->epc[ep]->out_maxsize);
EPR_SET_STAT_RX(ep, EPR_STAT_RX_VALID);
}
/**
* @brief Starts a transmit operation on an IN endpoint.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_start_in(USBDriver *usbp, usbep_t ep) {
size_t n;
USBInEndpointState *isp = usbp->epc[ep]->in_state;
/* Transfer initialization.*/
n = isp->txsize;
if (n > (size_t)usbp->epc[ep]->in_maxsize)
n = (size_t)usbp->epc[ep]->in_maxsize;
isp->txlast = n;
usb_packet_write_from_buffer(ep, isp->txbuf, n);
EPR_SET_STAT_TX(ep, EPR_STAT_TX_VALID);
}
/**
* @brief Brings an OUT endpoint in the stalled state.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_stall_out(USBDriver *usbp, usbep_t ep) {
(void)usbp;
EPR_SET_STAT_RX(ep, EPR_STAT_RX_STALL);
}
/**
* @brief Brings an IN endpoint in the stalled state.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_stall_in(USBDriver *usbp, usbep_t ep) {
(void)usbp;
EPR_SET_STAT_TX(ep, EPR_STAT_TX_STALL);
}
/**
* @brief Brings an OUT endpoint in the active state.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_clear_out(USBDriver *usbp, usbep_t ep) {
(void)usbp;
/* Makes sure to not put to NAK an endpoint that is already
transferring.*/
if ((STM32_USB->EPR[ep] & EPR_STAT_RX_MASK) != EPR_STAT_RX_VALID)
EPR_SET_STAT_TX(ep, EPR_STAT_RX_NAK);
}
/**
* @brief Brings an IN endpoint in the active state.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
*
* @notapi
*/
void usb_lld_clear_in(USBDriver *usbp, usbep_t ep) {
(void)usbp;
/* Makes sure to not put to NAK an endpoint that is already
transferring.*/
if ((STM32_USB->EPR[ep] & EPR_STAT_TX_MASK) != EPR_STAT_TX_VALID)
EPR_SET_STAT_TX(ep, EPR_STAT_TX_NAK);
}
#endif /* HAL_USE_USB */
/** @} */

533
os/hal/ports/STM32/LLD/USBv2/hal_usb_lld.h Normal file
View File

@ -0,0 +1,533 @@
/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file USBv2/hal_usb_lld.h
* @brief STM32 USB subsystem low level driver header.
*
* @addtogroup USB
* @{
*/
#ifndef HAL_USB_LLD_H
#define HAL_USB_LLD_H
#if HAL_USE_USB || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @brief Maximum endpoint address.
*/
#define USB_MAX_ENDPOINTS 8
/**
* @brief Status stage handling method.
*/
#define USB_EP0_STATUS_STAGE USB_EP0_STATUS_STAGE_SW
/**
* @brief This device requires the address change after the status packet.
*/
#define USB_SET_ADDRESS_MODE USB_LATE_SET_ADDRESS
/**
* @brief Method for set address acknowledge.
*/
#define USB_SET_ADDRESS_ACK_HANDLING USB_SET_ADDRESS_ACK_SW
/**
* @brief Pointer to the USB registers block.
*/
#define STM32_USB ((stm32_usb_t *)USB_DRD_BASE)
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief USB1 driver enable switch.
* @details If set to @p TRUE the support for USB1 is included.
* @note The default is @p TRUE.
*/
#if !defined(STM32_USB_USE_USB1) || defined(__DOXYGEN__)
#define STM32_USB_USE_USB1 FALSE
#endif
/**
* @brief Enables the USB device low power mode on suspend.
*/
#if !defined(STM32_USB_LOW_POWER_ON_SUSPEND) || defined(__DOXYGEN__)
#define STM32_USB_LOW_POWER_ON_SUSPEND FALSE
#endif
/**
* @brief USB1 interrupt priority level setting.
*/
#if (!defined(STM32_USB_USB1_HP_IRQ_PRIORITY) && \
(STM32_USB1_HP_NUMBER != STM32_USB1_LP_NUMBER)) || defined(__DOXYGEN__)
#define STM32_USB_USB1_HP_IRQ_PRIORITY 13
#endif
/**
* @brief USB1 interrupt priority level setting.
*/
#if !defined(STM32_USB_USB1_LP_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_USB_USB1_LP_IRQ_PRIORITY 14
#endif
/**
* @brief Enables isochronous support.
* @note Isochronous support requires special handling and this makes the
* code size increase significantly.
*/
#if !defined(STM32_USB_USE_ISOCHRONOUS) || defined(__DOXYGEN__)
#define STM32_USB_USE_ISOCHRONOUS FALSE
#endif
/**
* @brief Use faster copy for packets.
* @note Makes the driver larger.
*/
#if !defined(STM32_USB_USE_FAST_COPY) || defined(__DOXYGEN__)
#define STM32_USB_USE_FAST_COPY FALSE
#endif
/**
* @brief Host wake-up procedure duration.
*/
#if !defined(STM32_USB_HOST_WAKEUP_DURATION) || defined(__DOXYGEN__)
#define STM32_USB_HOST_WAKEUP_DURATION 2
#endif
/**
* @brief Allowed deviation for the 48MHz clock.
*/
#if !defined(STM32_USB_48MHZ_DELTA) || defined(__DOXYGEN__)
#define STM32_USB_48MHZ_DELTA 0
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if STM32_USB_USE_USB1 && !STM32_HAS_USB
#error "USB not present in the selected device"
#endif
#if !STM32_USB_USE_USB1
#error "USB driver activated but no USB peripheral assigned"
#endif
#if !defined(STM32_USBCLK)
#error "STM32_USBCLK not defined"
#endif
#if STM32_USB_USE_USB1 && \
(STM32_USB1_HP_NUMBER != STM32_USB1_LP_NUMBER) && \
!OSAL_IRQ_IS_VALID_PRIORITY(STM32_USB_USB1_HP_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to USB HP"
#endif
#if STM32_USB_USE_USB1 && \
!OSAL_IRQ_IS_VALID_PRIORITY(STM32_USB_USB1_LP_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to USB LP"
#endif
#if !defined(STM32_USB1_HP_HANDLER)
#error "STM32_USB1_HP_HANDLER not defined"
#endif
#if !defined(STM32_USB1_HP_NUMBER)
#error "STM32_USB1_HP_NUMBER not defined"
#endif
#if !defined(STM32_USB1_LP_HANDLER)
#error "STM32_USB1_LP_HANDLER not defined"
#endif
#if !defined(STM32_USB1_LP_NUMBER)
#error "STM32_USB1_LP_NUMBER not defined"
#endif
#if (STM32_USB_HOST_WAKEUP_DURATION < 2) || (STM32_USB_HOST_WAKEUP_DURATION > 15)
#error "invalid STM32_USB_HOST_WAKEUP_DURATION setting, it must be between 2 and 15"
#endif
#if (STM32_USB_48MHZ_DELTA < 0) || (STM32_USB_48MHZ_DELTA > 250000)
#error "invalid STM32_USB_48MHZ_DELTA setting, it must not exceed 250000"
#endif
/* Allowing for a small tolerance.*/
#if (STM32_USBCLK < (48000000 - STM32_USB_48MHZ_DELTA)) || \
(STM32_USBCLK > (48000000 + STM32_USB_48MHZ_DELTA))
#error "the USB USBv1 driver requires a 48MHz clock"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
typedef struct {
__IO uint32_t CHEPR[8];
__IO uint32_t RESERVED0[8];
__IO uint32_t CNTR;
__IO uint32_t ISTR;
__IO uint32_t FNR;
__IO uint32_t DADDR;
__IO uint32_t RESERVED1;
__IO uint32_t LPMCSR;
__IO uint32_t BCDR;
} stm32_usb_t;
/**
* @brief Type of an IN endpoint state structure.
*/
typedef struct {
/**
* @brief Requested transmit transfer size.
*/
size_t txsize;
/**
* @brief Transmitted bytes so far.
*/
size_t txcnt;
/**
* @brief Pointer to the transmission linear buffer.
*/
const uint8_t *txbuf;
#if (USB_USE_WAIT == TRUE) || defined(__DOXYGEN__)
/**
* @brief Waiting thread.
*/
thread_reference_t thread;
#endif
/* End of the mandatory fields.*/
/**
* @brief Size of the last transmitted packet.
*/
size_t txlast;
} USBInEndpointState;
/**
* @brief Type of an OUT endpoint state structure.
*/
typedef struct {
/**
* @brief Requested receive transfer size.
*/
size_t rxsize;
/**
* @brief Received bytes so far.
*/
size_t rxcnt;
/**
* @brief Pointer to the receive linear buffer.
*/
uint8_t *rxbuf;
#if (USB_USE_WAIT == TRUE) || defined(__DOXYGEN__)
/**
* @brief Waiting thread.
*/
thread_reference_t thread;
#endif
/* End of the mandatory fields.*/
/**
* @brief Number of packets to receive.
*/
uint16_t rxpkts;
} USBOutEndpointState;
/**
* @brief Type of an USB endpoint configuration structure.
* @note Platform specific restrictions may apply to endpoints.
*/
typedef struct {
/**
* @brief Type and mode of the endpoint.
*/
uint32_t ep_mode;
/**
* @brief Setup packet notification callback.
* @details This callback is invoked when a setup packet has been
* received.
* @post The application must immediately call @p usbReadPacket() in
* order to access the received packet.
* @note This field is only valid for @p USB_EP_MODE_TYPE_CTRL
* endpoints, it should be set to @p NULL for other endpoint
* types.
*/
usbepcallback_t setup_cb;
/**
* @brief IN endpoint notification callback.
* @details This field must be set to @p NULL if callback is not required.
*/
usbepcallback_t in_cb;
/**
* @brief OUT endpoint notification callback.
* @details This field must be set to @p NULL if callback is not required.
*/
usbepcallback_t out_cb;
/**
* @brief IN endpoint maximum packet size.
* @details This field must be set to zero if the IN endpoint is not used.
*/
uint16_t in_maxsize;
/**
* @brief OUT endpoint maximum packet size.
* @details This field must be set to zero if the OUT endpoint is not used.
*/
uint16_t out_maxsize;
/**
* @brief @p USBEndpointState associated to the IN endpoint.
* @details This field must be set to @p NULL if the IN endpoint is not
* used.
*/
USBInEndpointState *in_state;
/**
* @brief @p USBEndpointState associated to the OUT endpoint.
* @details This field must be set to @p NULL if the OUT endpoint is not
* used.
*/
USBOutEndpointState *out_state;
/* End of the mandatory fields.*/
/**
* @brief Reserved field, not currently used.
* @note Initialize this field to 1 in order to be forward compatible.
*/
uint16_t ep_buffers;
/**
* @brief Pointer to a buffer for setup packets.
* @details Setup packets require a dedicated 8-bytes buffer, set this
* field to @p NULL for non-control endpoints.
*/
uint8_t *setup_buf;
} USBEndpointConfig;
/**
* @brief Type of an USB driver configuration structure.
*/
typedef struct {
/**
* @brief USB events callback.
* @details This callback is invoked when an USB driver event is registered.
*/
usbeventcb_t event_cb;
/**
* @brief Device GET_DESCRIPTOR request callback.
* @note This callback is mandatory and cannot be set to @p NULL.
*/
usbgetdescriptor_t get_descriptor_cb;
/**
* @brief Requests hook callback.
* @details This hook allows to be notified of standard requests or to
* handle non standard requests.
*/
usbreqhandler_t requests_hook_cb;
/**
* @brief Start Of Frame callback.
*/
usbcallback_t sof_cb;
/* End of the mandatory fields.*/
} USBConfig;
/**
* @brief Structure representing an USB driver.
*/
struct USBDriver {
/**
* @brief Driver state.
*/
usbstate_t state;
/**
* @brief Current configuration data.
*/
const USBConfig *config;
/**
* @brief Bit map of the transmitting IN endpoints.
*/
uint16_t transmitting;
/**
* @brief Bit map of the receiving OUT endpoints.
*/
uint16_t receiving;
/**
* @brief Active endpoints configurations.
*/
const USBEndpointConfig *epc[USB_MAX_ENDPOINTS + 1];
/**
* @brief Fields available to user, it can be used to associate an
* application-defined handler to an IN endpoint.
* @note The base index is one, the endpoint zero does not have a
* reserved element in this array.
*/
void *in_params[USB_MAX_ENDPOINTS];
/**
* @brief Fields available to user, it can be used to associate an
* application-defined handler to an OUT endpoint.
* @note The base index is one, the endpoint zero does not have a
* reserved element in this array.
*/
void *out_params[USB_MAX_ENDPOINTS];
/**
* @brief Endpoint 0 state.
*/
usbep0state_t ep0state;
/**
* @brief Next position in the buffer to be transferred through endpoint 0.
*/
uint8_t *ep0next;
/**
* @brief Number of bytes yet to be transferred through endpoint 0.
*/
size_t ep0n;
/**
* @brief Endpoint 0 end transaction callback.
*/
usbcallback_t ep0endcb;
/**
* @brief Setup packet buffer.
*/
uint8_t setup[8];
/**
* @brief Current USB device status.
*/
uint16_t status;
/**
* @brief Assigned USB address.
*/
uint8_t address;
/**
* @brief Current USB device configuration.
*/
uint8_t configuration;
/**
* @brief State of the driver when a suspend happened.
*/
usbstate_t saved_state;
#if defined(USB_DRIVER_EXT_FIELDS)
USB_DRIVER_EXT_FIELDS
#endif
/* End of the mandatory fields.*/
/**
* @brief Associated USB peripheral.
*/
stm32_usb_t *usb;
/**
* @brief Pointer to the next address in the packet memory.
*/
uint32_t pmnext;
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @brief Returns the current frame number.
*
* @param[in] usbp pointer to the @p USBDriver object
* @return The current frame number.
*
* @notapi
*/
#define usb_lld_get_frame_number(usbp) (STM32_USB->FNR & FNR_FN_MASK)
/**
* @brief Returns the exact size of a receive transaction.
* @details The received size can be different from the size specified in
* @p usbStartReceiveI() because the last packet could have a size
* different from the expected one.
* @pre The OUT endpoint must have been configured in transaction mode
* in order to use this function.
*
* @param[in] usbp pointer to the @p USBDriver object
* @param[in] ep endpoint number
* @return Received data size.
*
* @notapi
*/
#define usb_lld_get_transaction_size(usbp, ep) \
((usbp)->epc[ep]->out_state->rxcnt)
/**
* @brief Connects the USB device.
*
* @notapi
*/
#if !defined(usb_lld_connect_bus)
#define usb_lld_connect_bus(usbp) ((usbp)->usb->BCDR |= USB_BCDR_DPPU)
#endif
/**
* @brief Disconnect the USB device.
*
* @notapi
*/
#if !defined(usb_lld_disconnect_bus)
#define usb_lld_disconnect_bus(usbp) ((usbp)->usb->BCDR &= ~USB_BCDR_DPPU)
#endif
/**
* @brief Start of host wake-up procedure.
*
* @notapi
*/
#define usb_lld_wakeup_host(usbp) \
do { \
(usbp)->usb->CNTR |= USB_CNTR_L2RES; \
osalThreadSleepMilliseconds(STM32_USB_HOST_WAKEUP_DURATION); \
(usbp)->usb->CNTR &= ~USB_CNTR_L2RES; \
} while (false)
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if STM32_USB_USE_USB1 && !defined(__DOXYGEN__)
extern USBDriver USBD1;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void usb_lld_init(void);
void usb_lld_start(USBDriver *usbp);
void usb_lld_stop(USBDriver *usbp);
void usb_lld_reset(USBDriver *usbp);
void usb_lld_set_address(USBDriver *usbp);
void usb_lld_init_endpoint(USBDriver *usbp, usbep_t ep);
void usb_lld_disable_endpoints(USBDriver *usbp);
usbepstatus_t usb_lld_get_status_in(USBDriver *usbp, usbep_t ep);
usbepstatus_t usb_lld_get_status_out(USBDriver *usbp, usbep_t ep);
void usb_lld_read_setup(USBDriver *usbp, usbep_t ep, uint8_t *buf);
void usb_lld_start_out(USBDriver *usbp, usbep_t ep);
void usb_lld_start_in(USBDriver *usbp, usbep_t ep);
void usb_lld_stall_out(USBDriver *usbp, usbep_t ep);
void usb_lld_stall_in(USBDriver *usbp, usbep_t ep);
void usb_lld_clear_out(USBDriver *usbp, usbep_t ep);
void usb_lld_clear_in(USBDriver *usbp, usbep_t ep);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_USB */
#endif /* HAL_USB_LLD_H */
/** @} */

2
os/hal/ports/STM32/STM32G0xx/platform.mk
View File

@ -39,7 +39,7 @@ include $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/driver_v2.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/SYSTICKv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/TIMv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/USARTv3/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv2/driver.mk
include $(CHIBIOS)/os/hal/ports/STM32/LLD/xWDGv1/driver.mk
# Shared variables

2
os/hal/ports/STM32/STM32G0xx/stm32_registry.h
View File

@ -828,9 +828,7 @@
/* USB attributes.*/
#define STM32_HAS_USB TRUE
#define STM32_USB_ACCESS_SCHEME_2x16 TRUE
#define STM32_USB_PMA_SIZE 2048
#define STM32_USB_HAS_BCDR TRUE
#define STM32_HAS_OTG1 FALSE
#define STM32_HAS_OTG2 FALSE