diff options
Diffstat (limited to 'os/hal')
| -rw-r--r-- | os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c | 171 | ||||
| -rw-r--r-- | os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h | 34 | ||||
| -rw-r--r-- | os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.c | 1422 | ||||
| -rw-r--r-- | os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.h | 628 |
4 files changed, 2 insertions, 2253 deletions
diff --git a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c index 48581c068..3ff3bc9f0 100644 --- a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c +++ b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.c @@ -394,17 +394,8 @@ 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
}
}
@@ -492,17 +483,8 @@ 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
+ /* TX FIFO empty or emptying.*/
+ otg_txfifo_handler(usbp, ep);
}
}
}
@@ -550,10 +532,6 @@ 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);
@@ -578,10 +556,6 @@ 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);
}
@@ -614,23 +588,11 @@ static void usb_lld_serve_interrupt(USBDriver *usbp) { otg_isoc_out_failed_handler(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.*/
- osalSysLockFromISR();
- otgp->GINTMSK &= ~GINTMSK_RXFLVLM;
- 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;
@@ -746,52 +708,15 @@ 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
- @p chThdCreateI() does not do it.*/
-#if CH_DBG_FILL_THREADS
- {
- void *wsp = USBD1.wa_pump;
- _thread_memfill((uint8_t *)wsp,
- (uint8_t *)wsp + sizeof (USBD1.wa_pump),
- CH_DBG_STACK_FILL_VALUE);
- }
-#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
- @p chThdCreateI() does not do it.*/
-#if CH_DBG_FILL_THREADS
- {
- void *wsp = USBD2.wa_pump;
- _thread_memfill((uint8_t *)wsp,
- (uint8_t *)wsp + sizeof (USBD2.wa_pump),
- CH_DBG_STACK_FILL_VALUE);
- }
-#endif /* CH_DBG_FILL_THREADS */
-#endif /* defined(_CHIBIOS_RT_) */
-#endif
#endif
}
@@ -876,10 +801,6 @@ 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;
@@ -929,24 +850,6 @@ 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) {
- thread_descriptor_t usbpump_descriptor = {
- "usb_pump",
- THD_WORKING_AREA_BASE(usbp->wa_pump),
- THD_WORKING_AREA_END(usbp->wa_pump),
- STM32_USB_OTG_THREAD_PRIO,
- usb_lld_pump,
- (void *)usbp
- };
-
- usbp->tr = chThdCreateI(&usbpump_descriptor);
- chSchRescheduleS();
- }
-#endif
-#endif
/* Global interrupts enable.*/
otgp->GAHBCFG |= GAHBCFG_GINTMSK;
}
@@ -969,9 +872,6 @@ 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;
@@ -1350,73 +1250,6 @@ 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
- * make the USB driver work.
- * @note The data copy part of the driver is implemented in this thread
- * in order to not perform heavy tasks within interrupt handlers.
- *
- * @param[in] p pointer to the @p USBDriver object
- *
- * @special
- */
-void usb_lld_pump(void *p) {
- USBDriver *usbp = (USBDriver *)p;
- stm32_otg_t *otgp = usbp->otg;
-
- osalSysLock();
- while (true) {
- usbep_t ep;
- uint32_t epmask;
-
- /* Nothing to do, going to sleep.*/
- if ((usbp->state == USB_STOP) ||
- ((usbp->txpending == 0) && !(otgp->GINTSTS & GINTSTS_RXFLVL))) {
- otgp->GINTMSK |= GINTMSK_RXFLVLM;
- osalThreadSuspendS(&usbp->wait);
- }
- osalSysUnlock();
-
- /* Checks if there are TXFIFOs to be filled.*/
- for (ep = 0; ep <= usbp->otgparams->num_endpoints; ep++) {
-
- /* Empties the RX FIFO.*/
- while (otgp->GINTSTS & GINTSTS_RXFLVL) {
- otg_rxfifo_handler(usbp);
- }
-
- epmask = (1 << ep);
- if (usbp->txpending & epmask) {
- bool done;
-
- osalSysLock();
- /* USB interrupts are globally *suspended* because the peripheral
- does not allow any interference during the TX FIFO filling
- operation.
- Synopsys document: DesignWare Cores USB 2.0 Hi-Speed On-The-Go (OTG)
- "The application has to finish writing one complete packet before
- switching to a different channel/endpoint FIFO. Violating this
- rule results in an error.".*/
- otgp->GAHBCFG &= ~GAHBCFG_GINTMSK;
- usbp->txpending &= ~epmask;
- osalSysUnlock();
-
- done = otg_txfifo_handler(usbp, ep);
-
- osalSysLock();
- otgp->GAHBCFG |= GAHBCFG_GINTMSK;
- if (!done)
- otgp->DIEPEMPMSK |= epmask;
- osalSysUnlock();
- }
- }
- osalSysLock();
- }
-}
-#endif
-
#endif /* HAL_USE_USB */
/** @} */
diff --git a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h index 31cb87a58..19269617e 100644 --- a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h +++ b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld.h @@ -110,20 +110,6 @@ #endif
/**
- * @brief Dedicated data pump threads priority.
- */
-#if !defined(STM32_USB_OTG_THREAD_PRIO) || defined(__DOXYGEN__)
-#define STM32_USB_OTG_THREAD_PRIO LOWPRIO
-#endif
-
-/**
- * @brief Dedicated data pump threads stack size.
- */
-#if !defined(STM32_USB_OTG_THREAD_STACK_SIZE) || defined(__DOXYGEN__)
-#define STM32_USB_OTG_THREAD_STACK_SIZE 128
-#endif
-
-/**
* @brief Exception priority level during TXFIFOs operations.
* @note Because an undocumented silicon behavior the operation of
* copying a packet into a TXFIFO must not be interrupted by
@@ -518,26 +504,6 @@ 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.
- */
- uint32_t txpending;
- /**
- * @brief Pointer to the thread when it is sleeping or @p NULL.
- */
- thread_reference_t wait;
-#if defined(_CHIBIOS_RT_)
- /**
- * @brief Pointer to the thread.
- */
- thread_reference_t tr;
- /**
- * @brief Working area for the dedicated data pump thread;
- */
- THD_WORKING_AREA(wa_pump, STM32_USB_OTG_THREAD_STACK_SIZE);
-#endif
-#endif
};
/*===========================================================================*/
diff --git a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.c b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.c deleted file mode 100644 index 9b94e478d..000000000 --- a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.c +++ /dev/null @@ -1,1422 +0,0 @@ -/*
- 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 OTGv1/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 TRDT_VALUE_FS 5
-#define TRDT_VALUE_HS 9
-
-#define EP0_MAX_INSIZE 64
-#define EP0_MAX_OUTSIZE 64
-
-#if STM32_OTG_STEPPING == 1
-#if defined(BOARD_OTG_NOVBUSSENS)
-#define GCCFG_INIT_VALUE (GCCFG_NOVBUSSENS | GCCFG_VBUSASEN | \
- GCCFG_VBUSBSEN | GCCFG_PWRDWN)
-#else
-#define GCCFG_INIT_VALUE (GCCFG_VBUSASEN | GCCFG_VBUSBSEN | \
- GCCFG_PWRDWN)
-#endif
-
-#elif STM32_OTG_STEPPING == 2
-#if defined(BOARD_OTG_NOVBUSSENS)
-#define GCCFG_INIT_VALUE GCCFG_PWRDWN
-#else
-#define GCCFG_INIT_VALUE (GCCFG_VBDEN | GCCFG_PWRDWN)
-#endif
-
-#endif
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/** @brief OTG_FS driver identifier.*/
-#if STM32_USB_USE_OTG1 || defined(__DOXYGEN__)
-USBDriver USBD1;
-#endif
-
-/** @brief OTG_HS driver identifier.*/
-#if STM32_USB_USE_OTG2 || defined(__DOXYGEN__)
-USBDriver USBD2;
-#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
-};
-
-#if STM32_USB_USE_OTG1
-static const stm32_otg_params_t fsparams = {
- STM32_USB_OTG1_RX_FIFO_SIZE / 4,
- STM32_OTG1_FIFO_MEM_SIZE,
- STM32_OTG1_ENDPOINTS
-};
-#endif
-
-#if STM32_USB_USE_OTG2
-static const stm32_otg_params_t hsparams = {
- STM32_USB_OTG2_RX_FIFO_SIZE / 4,
- STM32_OTG2_FIFO_MEM_SIZE,
- STM32_OTG2_ENDPOINTS
-};
-#endif
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-static void otg_core_reset(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
-
- osalSysPolledDelayX(32);
-
- /* Core reset and delay of at least 3 PHY cycles.*/
- otgp->GRSTCTL = GRSTCTL_CSRST;
- while ((otgp->GRSTCTL & GRSTCTL_CSRST) != 0)
- ;
-
- osalSysPolledDelayX(18);
-
- /* Wait AHB idle condition.*/
- while ((otgp->GRSTCTL & GRSTCTL_AHBIDL) == 0)
- ;
-}
-
-static void otg_disable_ep(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
- unsigned i;
-
- for (i = 0; i <= usbp->otgparams->num_endpoints; i++) {
- otgp->ie[i].DIEPCTL = 0;
- otgp->ie[i].DIEPTSIZ = 0;
- otgp->ie[i].DIEPINT = 0xFFFFFFFF;
-
- otgp->oe[i].DOEPCTL = 0;
- otgp->oe[i].DOEPTSIZ = 0;
- otgp->oe[i].DOEPINT = 0xFFFFFFFF;
- }
- otgp->DAINTMSK = DAINTMSK_OEPM(0) | DAINTMSK_IEPM(0);
-}
-
-static void otg_rxfifo_flush(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
-
- otgp->GRSTCTL = GRSTCTL_RXFFLSH;
- while ((otgp->GRSTCTL & GRSTCTL_RXFFLSH) != 0)
- ;
- /* Wait for 3 PHY Clocks.*/
- osalSysPolledDelayX(18);
-}
-
-static void otg_txfifo_flush(USBDriver *usbp, uint32_t fifo) {
- stm32_otg_t *otgp = usbp->otg;
-
- otgp->GRSTCTL = GRSTCTL_TXFNUM(fifo) | GRSTCTL_TXFFLSH;
- while ((otgp->GRSTCTL & GRSTCTL_TXFFLSH) != 0)
- ;
- /* Wait for 3 PHY Clocks.*/
- osalSysPolledDelayX(18);
-}
-
-/**
- * @brief Resets the FIFO RAM memory allocator.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-static void otg_ram_reset(USBDriver *usbp) {
-
- usbp->pmnext = usbp->otgparams->rx_fifo_size;
-}
-
-/**
- * @brief Allocates a block from the FIFO RAM memory.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] size size of the packet buffer to allocate in words
- *
- * @notapi
- */
-static uint32_t otg_ram_alloc(USBDriver *usbp, size_t size) {
- uint32_t next;
-
- next = usbp->pmnext;
- usbp->pmnext += size;
- osalDbgAssert(usbp->pmnext <= usbp->otgparams->otg_ram_size,
- "OTG FIFO memory overflow");
- return next;
-}
-
-/**
- * @brief Writes to a TX FIFO.
- *
- * @param[in] fifop pointer to the FIFO register
- * @param[in] buf buffer where to copy the endpoint data
- * @param[in] n maximum number of bytes to copy
- *
- * @notapi
- */
-static void otg_fifo_write_from_buffer(volatile uint32_t *fifop,
- const uint8_t *buf,
- size_t n) {
-
- osalDbgAssert(n > 0, "is zero");
-
- while (true) {
- *fifop = *((uint32_t *)buf);
- if (n <= 4) {
- break;
- }
- n -= 4;
- buf += 4;
- }
-}
-
-/**
- * @brief Reads a packet from the RXFIFO.
- *
- * @param[in] fifop pointer to the FIFO register
- * @param[out] buf buffer where to copy the endpoint data
- * @param[in] n number of bytes to pull from the FIFO
- * @param[in] max number of bytes to copy into the buffer
- *
- * @notapi
- */
-static void otg_fifo_read_to_buffer(volatile uint32_t *fifop,
- uint8_t *buf,
- size_t n,
- size_t max) {
- uint32_t w = 0;
- size_t i = 0;
-
- while (i < n) {
- if ((i & 3) == 0){
- w = *fifop;
- }
- if (i < max) {
- *buf++ = (uint8_t)w;
- w >>= 8;
- }
- i++;
- }
-}
-
-/**
- * @brief Incoming packets handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-static void otg_rxfifo_handler(USBDriver *usbp) {
- uint32_t sts, cnt, ep;
-
- /* Popping the event word out of the RX FIFO.*/
- sts = usbp->otg->GRXSTSP;
-
- /* Event details.*/
- cnt = (sts & GRXSTSP_BCNT_MASK) >> GRXSTSP_BCNT_OFF;
- ep = (sts & GRXSTSP_EPNUM_MASK) >> GRXSTSP_EPNUM_OFF;
-
- switch (sts & GRXSTSP_PKTSTS_MASK) {
- case GRXSTSP_SETUP_DATA:
- otg_fifo_read_to_buffer(usbp->otg->FIFO[0], usbp->epc[ep]->setup_buf,
- cnt, 8);
- break;
- case GRXSTSP_SETUP_COMP:
- break;
- case GRXSTSP_OUT_DATA:
- otg_fifo_read_to_buffer(usbp->otg->FIFO[0],
- usbp->epc[ep]->out_state->rxbuf,
- cnt,
- usbp->epc[ep]->out_state->rxsize -
- usbp->epc[ep]->out_state->rxcnt);
- usbp->epc[ep]->out_state->rxbuf += cnt;
- usbp->epc[ep]->out_state->rxcnt += cnt;
- break;
- case GRXSTSP_OUT_COMP:
- break;
- case GRXSTSP_OUT_GLOBAL_NAK:
- break;
- default:
- break;
- }
-}
-
-/**
- * @brief Outgoing packets handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- *
- * @notapi
- */
-static bool otg_txfifo_handler(USBDriver *usbp, usbep_t ep) {
-
- /* The TXFIFO is filled until there is space and data to be transmitted.*/
- while (true) {
- uint32_t n;
-
- /* Transaction end condition.*/
- if (usbp->epc[ep]->in_state->txcnt >= usbp->epc[ep]->in_state->txsize) {
- usbp->otg->DIEPEMPMSK &= ~DIEPEMPMSK_INEPTXFEM(ep);
- return true;
- }
-
- /* Number of bytes remaining in current transaction.*/
- n = usbp->epc[ep]->in_state->txsize - usbp->epc[ep]->in_state->txcnt;
- if (n > usbp->epc[ep]->in_maxsize)
- n = usbp->epc[ep]->in_maxsize;
-
- /* Checks if in the TXFIFO there is enough space to accommodate the
- next packet.*/
- if (((usbp->otg->ie[ep].DTXFSTS & DTXFSTS_INEPTFSAV_MASK) * 4) < n)
- return false;
-
-#if STM32_USB_OTGFIFO_FILL_BASEPRI
- __set_BASEPRI(CORTEX_PRIO_MASK(STM32_USB_OTGFIFO_FILL_BASEPRI));
-#endif
- otg_fifo_write_from_buffer(usbp->otg->FIFO[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
- }
-}
-
-/**
- * @brief Generic endpoint IN handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- *
- * @notapi
- */
-static void otg_epin_handler(USBDriver *usbp, usbep_t ep) {
- stm32_otg_t *otgp = usbp->otg;
- uint32_t epint = otgp->ie[ep].DIEPINT;
-
- otgp->ie[ep].DIEPINT = epint;
-
- if (epint & DIEPINT_TOC) {
- /* Timeouts not handled yet, not sure how to handle.*/
- }
- if ((epint & DIEPINT_XFRC) && (otgp->DIEPMSK & DIEPMSK_XFRCM)) {
- /* Transmit transfer complete.*/
- USBInEndpointState *isp = usbp->epc[ep]->in_state;
-
- if (isp->txsize < isp->totsize) {
- /* In case the transaction covered only part of the total transfer
- then another transaction is immediately started in order to
- cover the remaining.*/
- isp->txsize = isp->totsize - isp->txsize;
- isp->txcnt = 0;
- osalSysLockFromISR();
- usb_lld_start_in(usbp, ep);
- osalSysUnlockFromISR();
- }
- else {
- /* End on IN transfer.*/
- _usb_isr_invoke_in_cb(usbp, 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
- }
-}
-
-/**
- * @brief Generic endpoint OUT handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- *
- * @notapi
- */
-static void otg_epout_handler(USBDriver *usbp, usbep_t ep) {
- stm32_otg_t *otgp = usbp->otg;
- uint32_t epint = otgp->oe[ep].DOEPINT;
-
- /* Resets all EP IRQ sources.*/
- otgp->oe[ep].DOEPINT = epint;
-
- if ((epint & DOEPINT_STUP) && (otgp->DOEPMSK & DOEPMSK_STUPM)) {
- /* Setup packets handling, setup packets are handled using a
- specific callback.*/
- _usb_isr_invoke_setup_cb(usbp, ep);
- }
-
- if ((epint & DOEPINT_XFRC) && (otgp->DOEPMSK & DOEPMSK_XFRCM)) {
- USBOutEndpointState *osp;
-
- /* OUT state structure pointer for this endpoint.*/
- osp = usbp->epc[ep]->out_state;
-
- /* EP0 requires special handling.*/
- if (ep == 0) {
-
-#if defined(STM32_OTG_SEQUENCE_WORKAROUND)
- /* If an OUT transaction end interrupt is processed while the state
- machine is not in an OUT state then it is ignored, this is caused
- on some devices (L4) apparently injecting spurious data complete
- words in the RX FIFO.*/
- if ((usbp->ep0state & USB_OUT_STATE) == 0)
- return;
-#endif
-
- /* In case the transaction covered only part of the total transfer
- then another transaction is immediately started in order to
- cover the remaining.*/
- if (((osp->rxcnt % usbp->epc[ep]->out_maxsize) == 0) &&
- (osp->rxsize < osp->totsize)) {
- osp->rxsize = osp->totsize - osp->rxsize;
- osp->rxcnt = 0;
- osalSysLockFromISR();
- usb_lld_start_out(usbp, ep);
- osalSysUnlockFromISR();
- return;
- }
- }
-
- /* End on OUT transfer.*/
- _usb_isr_invoke_out_cb(usbp, ep);
- }
-}
-
-/**
- * @brief Isochronous IN transfer failed handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-static void otg_isoc_in_failed_handler(USBDriver *usbp) {
- usbep_t ep;
- stm32_otg_t *otgp = usbp->otg;
-
- for (ep = 0; ep <= usbp->otgparams->num_endpoints; ep++) {
- if (((otgp->ie[ep].DIEPCTL & DIEPCTL_EPTYP_MASK) == DIEPCTL_EPTYP_ISO) &&
- ((otgp->ie[ep].DIEPCTL & DIEPCTL_EPENA) != 0)) {
- /* Endpoint enabled -> ISOC IN transfer failed */
- /* Disable endpoint */
- otgp->ie[ep].DIEPCTL |= (DIEPCTL_EPDIS | DIEPCTL_SNAK);
- while (otgp->ie[ep].DIEPCTL & DIEPCTL_EPENA)
- ;
-
- /* Flush FIFO */
- otg_txfifo_flush(usbp, ep);
-
- /* 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
- }
- }
-}
-
-/**
- * @brief Isochronous OUT transfer failed handler.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-static void otg_isoc_out_failed_handler(USBDriver *usbp) {
- usbep_t ep;
- stm32_otg_t *otgp = usbp->otg;
-
- for (ep = 0; ep <= usbp->otgparams->num_endpoints; ep++) {
- if (((otgp->oe[ep].DOEPCTL & DOEPCTL_EPTYP_MASK) == DOEPCTL_EPTYP_ISO) &&
- ((otgp->oe[ep].DOEPCTL & DOEPCTL_EPENA) != 0)) {
- /* Endpoint enabled -> ISOC OUT transfer failed */
- /* Disable endpoint */
- /* FIXME: Core stucks here */
- /*otgp->oe[ep].DOEPCTL |= (DOEPCTL_EPDIS | DOEPCTL_SNAK);
- while (otgp->oe[ep].DOEPCTL & DOEPCTL_EPENA)
- ;*/
- /* Prepare transfer for next frame */
- _usb_isr_invoke_out_cb(usbp, ep);
- }
- }
-}
-
-/**
- * @brief OTG shared ISR.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-static void usb_lld_serve_interrupt(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
- uint32_t sts, src;
-
- sts = otgp->GINTSTS;
- sts &= otgp->GINTMSK;
- otgp->GINTSTS = sts;
-
- /* Reset interrupt handling.*/
- if (sts & GINTSTS_USBRST) {
-#if 0
- /* Resetting pending operations.*/
- usbp->txpending = 0;
-#endif
- /* Default reset action.*/
- _usb_reset(usbp);
-
- /* Preventing execution of more handlers, the core has been reset.*/
- return;
- }
-
- /* Wake-up handling.*/
- if (sts & GINTSTS_WKUPINT) {
- /* If clocks are gated off, turn them back on (may be the case if
- coming out of suspend mode).*/
- if (otgp->PCGCCTL & (PCGCCTL_STPPCLK | PCGCCTL_GATEHCLK)) {
- /* Set to zero to un-gate the USB core clocks.*/
- otgp->PCGCCTL &= ~(PCGCCTL_STPPCLK | PCGCCTL_GATEHCLK);
- }
-
- /* Clear the Remote Wake-up Signaling.*/
- otgp->DCTL &= ~DCTL_RWUSIG;
-
- _usb_wakeup(usbp);
- }
-
- /* Suspend handling.*/
- if (sts & GINTSTS_USBSUSP) {
-#if 0
- /* Resetting pending operations.*/
- usbp->txpending = 0;
-#endif
- /* Default suspend action.*/
- _usb_suspend(usbp);
- }
-
- /* Enumeration done.*/
- if (sts & GINTSTS_ENUMDNE) {
- /* Full or High speed timing selection.*/
- if ((otgp->DSTS & DSTS_ENUMSPD_MASK) == DSTS_ENUMSPD_HS_480) {
- otgp->GUSBCFG = (otgp->GUSBCFG & ~(GUSBCFG_TRDT_MASK)) |
- GUSBCFG_TRDT(TRDT_VALUE_HS);
- }
- else {
- otgp->GUSBCFG = (otgp->GUSBCFG & ~(GUSBCFG_TRDT_MASK)) |
- GUSBCFG_TRDT(TRDT_VALUE_FS);
- }
- }
-
- /* SOF interrupt handling.*/
- if (sts & GINTSTS_SOF) {
- _usb_isr_invoke_sof_cb(usbp);
- }
-
- /* Isochronous IN failed handling */
- if (sts & GINTSTS_IISOIXFR) {
- otg_isoc_in_failed_handler(usbp);
- }
-
- /* Isochronous OUT failed handling */
- if (sts & GINTSTS_IISOOXFR) {
- otg_isoc_out_failed_handler(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.*/
- osalSysLockFromISR();
- otgp->GINTMSK &= ~GINTMSK_RXFLVLM;
- 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;
- if (sts & GINTSTS_OEPINT) {
- if (src & (1 << 16))
- otg_epout_handler(usbp, 0);
- if (src & (1 << 17))
- otg_epout_handler(usbp, 1);
- if (src & (1 << 18))
- otg_epout_handler(usbp, 2);
- if (src & (1 << 19))
- otg_epout_handler(usbp, 3);
-#if USB_MAX_ENDPOINTS >= 4
- if (src & (1 << 20))
- otg_epout_handler(usbp, 4);
-#endif
-#if USB_MAX_ENDPOINTS >= 5
- if (src & (1 << 21))
- otg_epout_handler(usbp, 5);
-#endif
-#if USB_MAX_ENDPOINTS >= 6
- if (src & (1 << 22))
- otg_epout_handler(usbp, 6);
-#endif
-#if USB_MAX_ENDPOINTS >= 7
- if (src & (1 << 23))
- otg_epout_handler(usbp, 7);
-#endif
-#if USB_MAX_ENDPOINTS >= 8
- if (src & (1 << 24))
- otg_epout_handler(usbp, 8);
-#endif
- }
- if (sts & GINTSTS_IEPINT) {
- if (src & (1 << 0))
- otg_epin_handler(usbp, 0);
- if (src & (1 << 1))
- otg_epin_handler(usbp, 1);
- if (src & (1 << 2))
- otg_epin_handler(usbp, 2);
- if (src & (1 << 3))
- otg_epin_handler(usbp, 3);
-#if USB_MAX_ENDPOINTS >= 4
- if (src & (1 << 4))
- otg_epin_handler(usbp, 4);
-#endif
-#if USB_MAX_ENDPOINTS >= 5
- if (src & (1 << 5))
- otg_epin_handler(usbp, 5);
-#endif
-#if USB_MAX_ENDPOINTS >= 6
- if (src & (1 << 6))
- otg_epin_handler(usbp, 6);
-#endif
-#if USB_MAX_ENDPOINTS >= 7
- if (src & (1 << 7))
- otg_epin_handler(usbp, 7);
-#endif
-#if USB_MAX_ENDPOINTS >= 8
- if (src & (1 << 8))
- otg_epin_handler(usbp, 8);
-#endif
- }
-}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-#if STM32_USB_USE_OTG1 || defined(__DOXYGEN__)
-/**
- * @brief OTG1 interrupt handler.
- *
- * @isr
- */
-OSAL_IRQ_HANDLER(STM32_OTG1_HANDLER) {
-
- OSAL_IRQ_PROLOGUE();
-
- usb_lld_serve_interrupt(&USBD1);
-
- OSAL_IRQ_EPILOGUE();
-}
-#endif
-
-#if STM32_USB_USE_OTG2 || defined(__DOXYGEN__)
-/**
- * @brief OTG2 interrupt handler.
- *
- * @isr
- */
-OSAL_IRQ_HANDLER(STM32_OTG2_HANDLER) {
-
- OSAL_IRQ_PROLOGUE();
-
- usb_lld_serve_interrupt(&USBD2);
-
- OSAL_IRQ_EPILOGUE();
-}
-#endif
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level USB driver initialization.
- *
- * @notapi
- */
-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
- @p chThdCreateI() does not do it.*/
-#if CH_DBG_FILL_THREADS
- {
- void *wsp = USBD1.wa_pump;
- _thread_memfill((uint8_t *)wsp,
- (uint8_t *)wsp + sizeof (USBD1.wa_pump),
- CH_DBG_STACK_FILL_VALUE);
- }
-#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
- @p chThdCreateI() does not do it.*/
-#if CH_DBG_FILL_THREADS
- {
- void *wsp = USBD2.wa_pump;
- _thread_memfill((uint8_t *)wsp,
- (uint8_t *)wsp + sizeof (USBD2.wa_pump),
- CH_DBG_STACK_FILL_VALUE);
- }
-#endif /* CH_DBG_FILL_THREADS */
-#endif /* defined(_CHIBIOS_RT_) */
-#endif
-#endif
-}
-
-/**
- * @brief Configures and activates the USB peripheral.
- * @note Starting the OTG cell can be a slow operation carried out with
- * interrupts disabled, perform it before starting time-critical
- * operations.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-void usb_lld_start(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
-
- if (usbp->state == USB_STOP) {
- /* Clock activation.*/
-
-#if STM32_USB_USE_OTG1
- if (&USBD1 == usbp) {
- /* OTG FS clock enable and reset.*/
- rccEnableOTG_FS(true);
- rccResetOTG_FS();
-
- /* Enables IRQ vector.*/
- nvicEnableVector(STM32_OTG1_NUMBER, STM32_USB_OTG1_IRQ_PRIORITY);
-
- /* - Forced device mode.
- - USB turn-around time = TRDT_VALUE_FS.
- - Full Speed 1.1 PHY.*/
- otgp->GUSBCFG = GUSBCFG_FDMOD | GUSBCFG_TRDT(TRDT_VALUE_FS) |
- GUSBCFG_PHYSEL;
-
- /* 48MHz 1.1 PHY.*/
- otgp->DCFG = 0x02200000 | DCFG_DSPD_FS11;
- }
-#endif
-
-#if STM32_USB_USE_OTG2
- if (&USBD2 == usbp) {
- /* OTG HS clock enable and reset.*/
- rccEnableOTG_HS(true);
- rccResetOTG_HS();
-
- /* ULPI clock is managed depending on the presence of an external
- PHY.*/
-#if defined(BOARD_OTG2_USES_ULPI)
- rccEnableOTG_HSULPI(true);
-#else
- /* Workaround for the problem described here:
- http://forum.chibios.org/phpbb/viewtopic.php?f=16&t=1798.*/
- rccDisableOTG_HSULPI();
-#endif
-
- /* Enables IRQ vector.*/
- nvicEnableVector(STM32_OTG2_NUMBER, STM32_USB_OTG2_IRQ_PRIORITY);
-
- /* - Forced device mode.
- - USB turn-around time = TRDT_VALUE_HS or TRDT_VALUE_FS.*/
-#if defined(BOARD_OTG2_USES_ULPI)
- /* High speed ULPI PHY.*/
- otgp->GUSBCFG = GUSBCFG_FDMOD | GUSBCFG_TRDT(TRDT_VALUE_HS) |
- GUSBCFG_SRPCAP | GUSBCFG_HNPCAP;
-#else
- otgp->GUSBCFG = GUSBCFG_FDMOD | GUSBCFG_TRDT(TRDT_VALUE_FS) |
- GUSBCFG_PHYSEL;
-#endif
-
-#if defined(BOARD_OTG2_USES_ULPI)
-#if STM32_USE_USB_OTG2_HS
- /* USB 2.0 High Speed PHY in HS mode.*/
- otgp->DCFG = 0x02200000 | DCFG_DSPD_HS;
-#else
- /* USB 2.0 High Speed PHY in FS mode.*/
- otgp->DCFG = 0x02200000 | DCFG_DSPD_HS_FS;
-#endif
-#else
- /* 48MHz 1.1 PHY.*/
- otgp->DCFG = 0x02200000 | DCFG_DSPD_FS11;
-#endif
- }
-#endif
-
-#if 0
- /* Clearing mask of TXFIFOs to be filled.*/
- usbp->txpending = 0;
-#endif
- /* PHY enabled.*/
- otgp->PCGCCTL = 0;
-
- /* VBUS sensing and transceiver enabled.*/
- otgp->GOTGCTL = GOTGCTL_BVALOEN | GOTGCTL_BVALOVAL;
-
-#if defined(BOARD_OTG2_USES_ULPI)
-#if STM32_USB_USE_OTG1
- if (&USBD1 == usbp) {
- otgp->GCCFG = GCCFG_INIT_VALUE;
- }
-#endif
-
-#if STM32_USB_USE_OTG2
- if (&USBD2 == usbp) {
- otgp->GCCFG = 0;
- }
-#endif
-#else
- otgp->GCCFG = GCCFG_INIT_VALUE;
-#endif
-
- /* Soft core reset.*/
- otg_core_reset(usbp);
-
- /* Interrupts on TXFIFOs half empty.*/
- otgp->GAHBCFG = 0;
-
- /* Endpoints re-initialization.*/
- otg_disable_ep(usbp);
-
- /* Clear all pending Device Interrupts, only the USB Reset interrupt
- is required initially.*/
- otgp->DIEPMSK = 0;
- otgp->DOEPMSK = 0;
- otgp->DAINTMSK = 0;
- if (usbp->config->sof_cb == NULL)
- otgp->GINTMSK = GINTMSK_ENUMDNEM | GINTMSK_USBRSTM | GINTMSK_USBSUSPM |
- GINTMSK_ESUSPM | GINTMSK_SRQM | GINTMSK_WKUM |
- GINTMSK_IISOIXFRM | GINTMSK_IISOOXFRM;
- else
- otgp->GINTMSK = GINTMSK_ENUMDNEM | GINTMSK_USBRSTM | GINTMSK_USBSUSPM |
- GINTMSK_ESUSPM | GINTMSK_SRQM | GINTMSK_WKUM |
- GINTMSK_IISOIXFRM | GINTMSK_IISOOXFRM |
- GINTMSK_SOFM;
-
- /* 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) {
- thread_descriptor_t usbpump_descriptor = {
- "usb_pump",
- THD_WORKING_AREA_BASE(usbp->wa_pump),
- THD_WORKING_AREA_END(usbp->wa_pump),
- STM32_USB_OTG_THREAD_PRIO,
- usb_lld_pump,
- (void *)usbp
- };
-
- usbp->tr = chThdCreateI(&usbpump_descriptor);
- chSchRescheduleS();
- }
-#endif
-#endif
- /* Global interrupts enable.*/
- otgp->GAHBCFG |= GAHBCFG_GINTMSK;
- }
-}
-
-/**
- * @brief Deactivates the USB peripheral.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-void usb_lld_stop(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
-
- /* If in ready state then disables the USB clock.*/
- if (usbp->state != USB_STOP) {
-
- /* Disabling all endpoints in case the driver has been stopped while
- active.*/
- otg_disable_ep(usbp);
-
-#if 0
- usbp->txpending = 0;
-#endif
- otgp->DAINTMSK = 0;
- otgp->GAHBCFG = 0;
- otgp->GCCFG = 0;
-
-#if STM32_USB_USE_OTG1
- if (&USBD1 == usbp) {
- nvicDisableVector(STM32_OTG1_NUMBER);
- rccDisableOTG_FS();
- }
-#endif
-
-#if STM32_USB_USE_OTG2
- if (&USBD2 == usbp) {
- nvicDisableVector(STM32_OTG2_NUMBER);
- rccDisableOTG_HS();
-#if defined(BOARD_OTG2_USES_ULPI)
- rccDisableOTG_HSULPI()
-#endif
- }
-#endif
- }
-}
-
-/**
- * @brief USB low level reset routine.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-void usb_lld_reset(USBDriver *usbp) {
- unsigned i;
- stm32_otg_t *otgp = usbp->otg;
-
- /* Flush the Tx FIFO.*/
- otg_txfifo_flush(usbp, 0);
-
- /* Endpoint interrupts all disabled and cleared.*/
- otgp->DIEPEMPMSK = 0;
- otgp->DAINTMSK = DAINTMSK_OEPM(0) | DAINTMSK_IEPM(0);
-
- /* All endpoints in NAK mode, interrupts cleared.*/
- for (i = 0; i <= usbp->otgparams->num_endpoints; i++) {
- otgp->ie[i].DIEPCTL = DIEPCTL_SNAK;
- otgp->oe[i].DOEPCTL = DOEPCTL_SNAK;
- otgp->ie[i].DIEPINT = 0xFFFFFFFF;
- otgp->oe[i].DOEPINT = 0xFFFFFFFF;
- }
-
- /* Resets the FIFO memory allocator.*/
- otg_ram_reset(usbp);
-
- /* Receive FIFO size initialization, the address is always zero.*/
- otgp->GRXFSIZ = usbp->otgparams->rx_fifo_size;
- otg_rxfifo_flush(usbp);
-
- /* Resets the device address to zero.*/
- otgp->DCFG = (otgp->DCFG & ~DCFG_DAD_MASK) | DCFG_DAD(0);
-
- /* Enables also EP-related interrupt sources.*/
- otgp->GINTMSK |= GINTMSK_RXFLVLM | GINTMSK_OEPM | GINTMSK_IEPM;
- otgp->DIEPMSK = DIEPMSK_TOCM | DIEPMSK_XFRCM;
- otgp->DOEPMSK = DOEPMSK_STUPM | DOEPMSK_XFRCM;
-
- /* EP0 initialization, it is a special case.*/
- usbp->epc[0] = &ep0config;
- otgp->oe[0].DOEPTSIZ = DOEPTSIZ_STUPCNT(3);
- otgp->oe[0].DOEPCTL = DOEPCTL_SD0PID | DOEPCTL_USBAEP | DOEPCTL_EPTYP_CTRL |
- DOEPCTL_MPSIZ(ep0config.out_maxsize);
- otgp->ie[0].DIEPTSIZ = 0;
- otgp->ie[0].DIEPCTL = DIEPCTL_SD0PID | DIEPCTL_USBAEP | DIEPCTL_EPTYP_CTRL |
- DIEPCTL_TXFNUM(0) | DIEPCTL_MPSIZ(ep0config.in_maxsize);
- otgp->DIEPTXF0 = DIEPTXF_INEPTXFD(ep0config.in_maxsize / 4) |
- DIEPTXF_INEPTXSA(otg_ram_alloc(usbp,
- ep0config.in_maxsize / 4));
-}
-
-/**
- * @brief Sets the USB address.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- *
- * @notapi
- */
-void usb_lld_set_address(USBDriver *usbp) {
- stm32_otg_t *otgp = usbp->otg;
-
- otgp->DCFG = (otgp->DCFG & ~DCFG_DAD_MASK) | DCFG_DAD(usbp->address);
-}
-
-/**
- * @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) {
- uint32_t ctl, fsize;
- stm32_otg_t *otgp = usbp->otg;
-
- /* IN and OUT common parameters.*/
- switch (usbp->epc[ep]->ep_mode & USB_EP_MODE_TYPE) {
- case USB_EP_MODE_TYPE_CTRL:
- ctl = DIEPCTL_SD0PID | DIEPCTL_USBAEP | DIEPCTL_EPTYP_CTRL;
- break;
- case USB_EP_MODE_TYPE_ISOC:
- ctl = DIEPCTL_SD0PID | DIEPCTL_USBAEP | DIEPCTL_EPTYP_ISO;
- break;
- case USB_EP_MODE_TYPE_BULK:
- ctl = DIEPCTL_SD0PID | DIEPCTL_USBAEP | DIEPCTL_EPTYP_BULK;
- break;
- case USB_EP_MODE_TYPE_INTR:
- ctl = DIEPCTL_SD0PID | DIEPCTL_USBAEP | DIEPCTL_EPTYP_INTR;
- break;
- default:
- return;
- }
-
- /* OUT endpoint activation or deactivation.*/
- otgp->oe[ep].DOEPTSIZ = 0;
- if (usbp->epc[ep]->out_state != NULL) {
- otgp->oe[ep].DOEPCTL = ctl | DOEPCTL_MPSIZ(usbp->epc[ep]->out_maxsize);
- otgp->DAINTMSK |= DAINTMSK_OEPM(ep);
- }
- else {
- otgp->oe[ep].DOEPCTL &= ~DOEPCTL_USBAEP;
- otgp->DAINTMSK &= ~DAINTMSK_OEPM(ep);
- }
-
- /* IN endpoint activation or deactivation.*/
- otgp->ie[ep].DIEPTSIZ = 0;
- if (usbp->epc[ep]->in_state != NULL) {
- /* FIFO allocation for the IN endpoint.*/
- fsize = usbp->epc[ep]->in_maxsize / 4;
- if (usbp->epc[ep]->in_multiplier > 1)
- fsize *= usbp->epc[ep]->in_multiplier;
- otgp->DIEPTXF[ep - 1] = DIEPTXF_INEPTXFD(fsize) |
- DIEPTXF_INEPTXSA(otg_ram_alloc(usbp, fsize));
- otg_txfifo_flush(usbp, ep);
-
- otgp->ie[ep].DIEPCTL = ctl |
- DIEPCTL_TXFNUM(ep) |
- DIEPCTL_MPSIZ(usbp->epc[ep]->in_maxsize);
- otgp->DAINTMSK |= DAINTMSK_IEPM(ep);
- }
- else {
- otgp->DIEPTXF[ep - 1] = 0x02000400; /* Reset value.*/
- otg_txfifo_flush(usbp, ep);
- otgp->ie[ep].DIEPCTL &= ~DIEPCTL_USBAEP;
- otgp->DAINTMSK &= ~DAINTMSK_IEPM(ep);
- }
-}
-
-/**
- * @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) {
-
- /* Resets the FIFO memory allocator.*/
- otg_ram_reset(usbp);
-
- /* Disabling all endpoints.*/
- otg_disable_ep(usbp);
-}
-
-/**
- * @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) {
- uint32_t ctl;
-
- (void)usbp;
-
- ctl = usbp->otg->oe[ep].DOEPCTL;
- if (!(ctl & DOEPCTL_USBAEP))
- return EP_STATUS_DISABLED;
- if (ctl & DOEPCTL_STALL)
- return EP_STATUS_STALLED;
- 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) {
- uint32_t ctl;
-
- (void)usbp;
-
- ctl = usbp->otg->ie[ep].DIEPCTL;
- if (!(ctl & DIEPCTL_USBAEP))
- return EP_STATUS_DISABLED;
- if (ctl & DIEPCTL_STALL)
- return EP_STATUS_STALLED;
- 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) {
-
- memcpy(buf, usbp->epc[ep]->setup_buf, 8);
-}
-
-/**
- * @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) {
- uint32_t pcnt, rxsize;
- USBOutEndpointState *osp = usbp->epc[ep]->out_state;
-
- /* Transfer initialization.*/
- osp->totsize = osp->rxsize;
- if ((ep == 0) && (osp->rxsize > EP0_MAX_OUTSIZE))
- osp->rxsize = EP0_MAX_OUTSIZE;
-
- /* Transaction size is rounded to a multiple of packet size because the
- following requirement in the RM:
- "For OUT transfers, the transfer size field in the endpoint's transfer
- size register must be a multiple of the maximum packet size of the
- endpoint, adjusted to the Word boundary".*/
- pcnt = (osp->rxsize + usbp->epc[ep]->out_maxsize - 1U) /
- usbp->epc[ep]->out_maxsize;
- rxsize = (pcnt * usbp->epc[ep]->out_maxsize + 3U) & 0xFFFFFFFCU;
-
- /*Setting up transaction parameters in DOEPTSIZ.*/
- usbp->otg->oe[ep].DOEPTSIZ = DOEPTSIZ_STUPCNT(3) | DOEPTSIZ_PKTCNT(pcnt) |
- DOEPTSIZ_XFRSIZ(rxsize);
-
- /* Special case of isochronous endpoint.*/
- if ((usbp->epc[ep]->ep_mode & USB_EP_MODE_TYPE) == USB_EP_MODE_TYPE_ISOC) {
- /* Odd/even bit toggling for isochronous endpoint.*/
- if (usbp->otg->DSTS & DSTS_FNSOF_ODD)
- usbp->otg->oe[ep].DOEPCTL |= DOEPCTL_SEVNFRM;
- else
- usbp->otg->oe[ep].DOEPCTL |= DOEPCTL_SODDFRM;
- }
-
- /* Starting operation.*/
- usbp->otg->oe[ep].DOEPCTL |= DOEPCTL_EPENA | DOEPCTL_CNAK;
-}
-
-/**
- * @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) {
- USBInEndpointState *isp = usbp->epc[ep]->in_state;
-
- /* Transfer initialization.*/
- isp->totsize = isp->txsize;
- if (isp->txsize == 0) {
- /* Special case, sending zero size packet.*/
- usbp->otg->ie[ep].DIEPTSIZ = DIEPTSIZ_PKTCNT(1) | DIEPTSIZ_XFRSIZ(0);
- }
- else {
- if ((ep == 0) && (isp->txsize > EP0_MAX_INSIZE))
- isp->txsize = EP0_MAX_INSIZE;
-
- /* Normal case.*/
- uint32_t pcnt = (isp->txsize + usbp->epc[ep]->in_maxsize - 1) /
- usbp->epc[ep]->in_maxsize;
- /* TODO: Support more than one packet per frame for isochronous transfers.*/
- usbp->otg->ie[ep].DIEPTSIZ = DIEPTSIZ_MCNT(1) | DIEPTSIZ_PKTCNT(pcnt) |
- DIEPTSIZ_XFRSIZ(isp->txsize);
- }
-
- /* Special case of isochronous endpoint.*/
- if ((usbp->epc[ep]->ep_mode & USB_EP_MODE_TYPE) == USB_EP_MODE_TYPE_ISOC) {
- /* Odd/even bit toggling.*/
- if (usbp->otg->DSTS & DSTS_FNSOF_ODD)
- usbp->otg->ie[ep].DIEPCTL |= DIEPCTL_SEVNFRM;
- else
- usbp->otg->ie[ep].DIEPCTL |= DIEPCTL_SODDFRM;
- }
-
- /* Starting operation.*/
- usbp->otg->ie[ep].DIEPCTL |= DIEPCTL_EPENA | DIEPCTL_CNAK;
- usbp->otg->DIEPEMPMSK |= DIEPEMPMSK_INEPTXFEM(ep);
-}
-
-/**
- * @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) {
-
- usbp->otg->oe[ep].DOEPCTL |= DOEPCTL_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) {
-
- usbp->otg->ie[ep].DIEPCTL |= DIEPCTL_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) {
-
- usbp->otg->oe[ep].DOEPCTL &= ~DOEPCTL_STALL;
-}
-
-/**
- * @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) {
-
- 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
- * make the USB driver work.
- * @note The data copy part of the driver is implemented in this thread
- * in order to not perform heavy tasks within interrupt handlers.
- *
- * @param[in] p pointer to the @p USBDriver object
- *
- * @special
- */
-void usb_lld_pump(void *p) {
- USBDriver *usbp = (USBDriver *)p;
- stm32_otg_t *otgp = usbp->otg;
-
- osalSysLock();
- while (true) {
- usbep_t ep;
- uint32_t epmask;
-
- /* Nothing to do, going to sleep.*/
- if ((usbp->state == USB_STOP) ||
- ((usbp->txpending == 0)/* && !(otgp->GINTSTS & GINTSTS_RXFLVL)*/)) {
-/* otgp->GINTMSK |= GINTMSK_RXFLVLM;*/
- osalThreadSuspendS(&usbp->wait);
- }
- osalSysUnlock();
-
- /* Checks if there are TXFIFOs to be filled.*/
- for (ep = 0; ep <= usbp->otgparams->num_endpoints; ep++) {
-
-#if 0
- /* Empties the RX FIFO.*/
- while (otgp->GINTSTS & GINTSTS_RXFLVL) {
- otg_rxfifo_handler(usbp);
- }
-#endif
-
- epmask = (1 << ep);
- if (usbp->txpending & epmask) {
- bool done;
-
- osalSysLock();
- /* USB interrupts are globally *suspended* because the peripheral
- does not allow any interference during the TX FIFO filling
- operation.
- Synopsys document: DesignWare Cores USB 2.0 Hi-Speed On-The-Go (OTG)
- "The application has to finish writing one complete packet before
- switching to a different channel/endpoint FIFO. Violating this
- rule results in an error.".*/
- otgp->GAHBCFG &= ~GAHBCFG_GINTMSK;
- usbp->txpending &= ~epmask;
- osalSysUnlock();
-
- done = otg_txfifo_handler(usbp, ep);
-
- osalSysLock();
- otgp->GAHBCFG |= GAHBCFG_GINTMSK;
- if (!done)
- otgp->DIEPEMPMSK |= epmask;
- osalSysUnlock();
- }
- }
- osalSysLock();
- }
-}
-#endif
-
-#endif /* HAL_USE_USB */
-
-/** @} */
diff --git a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.h b/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.h deleted file mode 100644 index 56ef3792c..000000000 --- a/os/hal/ports/STM32/LLD/OTGv1/hal_usb_lld_alt.h +++ /dev/null @@ -1,628 +0,0 @@ -/*
- 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 OTGv1/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__)
-
-#include "stm32_otg.h"
-
-/*===========================================================================*/
-/* Driver constants. */
-/*===========================================================================*/
-
-/**
- * @brief Status stage handling method.
- */
-#define USB_EP0_STATUS_STAGE USB_EP0_STATUS_STAGE_SW
-
-/**
- * @brief The address can be changed immediately upon packet reception.
- */
-#define USB_SET_ADDRESS_MODE USB_EARLY_SET_ADDRESS
-
-/**
- * @brief Method for set address acknowledge.
- */
-#define USB_SET_ADDRESS_ACK_HANDLING USB_SET_ADDRESS_ACK_SW
-
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @brief OTG1 driver enable switch.
- * @details If set to @p TRUE the support for OTG_FS is included.
- * @note The default is @p FALSE
- */
-#if !defined(STM32_USB_USE_OTG1) || defined(__DOXYGEN__)
-#define STM32_USB_USE_OTG1 FALSE
-#endif
-
-/**
- * @brief OTG2 driver enable switch.
- * @details If set to @p TRUE the support for OTG_HS is included.
- * @note The default is @p FALSE.
- */
-#if !defined(STM32_USB_USE_OTG2) || defined(__DOXYGEN__)
-#define STM32_USB_USE_OTG2 FALSE
-#endif
-
-/**
- * @brief OTG1 interrupt priority level setting.
- */
-#if !defined(STM32_USB_OTG1_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define STM32_USB_OTG1_IRQ_PRIORITY 14
-#endif
-
-/**
- * @brief OTG2 interrupt priority level setting.
- */
-#if !defined(STM32_USB_OTG2_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define STM32_USB_OTG2_IRQ_PRIORITY 14
-#endif
-
-/**
- * @brief OTG1 RX shared FIFO size.
- * @note Must be a multiple of 4.
- */
-#if !defined(STM32_USB_OTG1_RX_FIFO_SIZE) || defined(__DOXYGEN__)
-#define STM32_USB_OTG1_RX_FIFO_SIZE 512
-#endif
-
-/**
- * @brief OTG2 RX shared FIFO size.
- * @note Must be a multiple of 4.
- */
-#if !defined(STM32_USB_OTG2_RX_FIFO_SIZE) || defined(__DOXYGEN__)
-#define STM32_USB_OTG2_RX_FIFO_SIZE 1024
-#endif
-
-/**
- * @brief Enables HS mode on OTG2 else FS mode.
- * @note The default is @p TRUE.
- * @note Has effect only if @p BOARD_OTG2_USES_ULPI is defined.
- */
-#if !defined(STM32_USE_USB_OTG2_HS) || defined(__DOXYGEN__)
-#define STM32_USE_USB_OTG2_HS TRUE
-#endif
-
-/**
- * @brief Dedicated data pump threads priority.
- */
-#if !defined(STM32_USB_OTG_THREAD_PRIO) || defined(__DOXYGEN__)
-#define STM32_USB_OTG_THREAD_PRIO LOWPRIO
-#endif
-
-/**
- * @brief Dedicated data pump threads stack size.
- */
-#if !defined(STM32_USB_OTG_THREAD_STACK_SIZE) || defined(__DOXYGEN__)
-#define STM32_USB_OTG_THREAD_STACK_SIZE 128
-#endif
-
-/**
- * @brief Exception priority level during TXFIFOs operations.
- * @note Because an undocumented silicon behavior the operation of
- * copying a packet into a TXFIFO must not be interrupted by
- * any other operation on the OTG peripheral.
- * This parameter represents the priority mask during copy
- * operations. The default value only allows to call USB
- * functions from callbacks invoked from USB ISR handlers.
- * If you need to invoke USB functions from other handlers
- * then raise this priority mast to the same level of the
- * handler you need to use.
- * @note The value zero means disabled, when disabled calling USB
- * functions is only safe from thread level or from USB
- * callbacks.
- */
-#if !defined(STM32_USB_OTGFIFO_FILL_BASEPRI) || defined(__DOXYGEN__)
-#define STM32_USB_OTGFIFO_FILL_BASEPRI 0
-#endif
-
-/**
- * @brief Host wake-up procedure duration.
- */
-#if !defined(USB_HOST_WAKEUP_DURATION) || defined(__DOXYGEN__)
-#define USB_HOST_WAKEUP_DURATION 2
-#endif
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-/* Registry checks.*/
-#if !defined(STM32_OTG_STEPPING)
-#error "STM32_OTG_STEPPING not defined in registry"
-#endif
-
-#if (STM32_OTG_STEPPING < 1) || (STM32_OTG_STEPPING > 2)
-#error "unsupported STM32_OTG_STEPPING"
-#endif
-
-#if !defined(STM32_HAS_OTG1) || !defined(STM32_HAS_OTG2)
-#error "STM32_HAS_OTGx not defined in registry"
-#endif
-
-#if STM32_HAS_OTG1 && !defined(STM32_OTG1_ENDPOINTS)
-#error "STM32_OTG1_ENDPOINTS not defined in registry"
-#endif
-
-#if STM32_HAS_OTG2 && !defined(STM32_OTG2_ENDPOINTS)
-#error "STM32_OTG2_ENDPOINTS not defined in registry"
-#endif
-
-#if STM32_HAS_OTG1 && !defined(STM32_OTG1_FIFO_MEM_SIZE)
-#error "STM32_OTG1_FIFO_MEM_SIZE not defined in registry"
-#endif
-
-#if STM32_HAS_OTG2 && !defined(STM32_OTG2_FIFO_MEM_SIZE)
-#error "STM32_OTG2_FIFO_MEM_SIZE not defined in registry"
-#endif
-
-#if (STM32_USB_USE_OTG1 && !defined(STM32_OTG1_HANDLER)) || \
- (STM32_USB_USE_OTG2 && !defined(STM32_OTG2_HANDLER))
-#error "STM32_OTGx_HANDLER not defined in registry"
-#endif
-
-#if (STM32_USB_USE_OTG1 && !defined(STM32_OTG1_NUMBER)) || \
- (STM32_USB_USE_OTG2 && !defined(STM32_OTG2_NUMBER))
-#error "STM32_OTGx_NUMBER not defined in registry"
-#endif
-
-/**
- * @brief Maximum endpoint address.
- */
-#if (STM32_HAS_OTG2 && STM32_USB_USE_OTG2) || defined(__DOXYGEN__)
-#if (STM32_OTG1_ENDPOINTS < STM32_OTG2_ENDPOINTS) || defined(__DOXYGEN__)
-#define USB_MAX_ENDPOINTS STM32_OTG2_ENDPOINTS
-#else
-#define USB_MAX_ENDPOINTS STM32_OTG1_ENDPOINTS
-#endif
-#else
-#define USB_MAX_ENDPOINTS STM32_OTG1_ENDPOINTS
-#endif
-
-#if STM32_USB_USE_OTG1 && !STM32_HAS_OTG1
-#error "OTG1 not present in the selected device"
-#endif
-
-#if STM32_USB_USE_OTG2 && !STM32_HAS_OTG2
-#error "OTG2 not present in the selected device"
-#endif
-
-#if !STM32_USB_USE_OTG1 && !STM32_USB_USE_OTG2
-#error "USB driver activated but no USB peripheral assigned"
-#endif
-
-#if STM32_USB_USE_OTG1 && \
- !OSAL_IRQ_IS_VALID_PRIORITY(STM32_USB_OTG1_IRQ_PRIORITY)
-#error "Invalid IRQ priority assigned to OTG1"
-#endif
-
-#if STM32_USB_USE_OTG2 && \
- !OSAL_IRQ_IS_VALID_PRIORITY(STM32_USB_OTG2_IRQ_PRIORITY)
-#error "Invalid IRQ priority assigned to OTG2"
-#endif
-
-#if (STM32_USB_OTG1_RX_FIFO_SIZE & 3) != 0
-#error "OTG1 RX FIFO size must be a multiple of 4"
-#endif
-
-#if (STM32_USB_OTG2_RX_FIFO_SIZE & 3) != 0
-#error "OTG2 RX FIFO size must be a multiple of 4"
-#endif
-
-#if defined(STM32F2XX) || defined(STM32F4XX) || defined(STM32F7XX)
-#define STM32_USBCLK STM32_PLL48CLK
-#elif defined(STM32F10X_CL)
-#define STM32_USBCLK STM32_OTGFSCLK
-#elif defined(STM32L4XX)
-#define STM32_USBCLK STM32_48CLK
-#else
-#error "unsupported STM32 platform for OTG functionality"
-#endif
-
-#if STM32_USBCLK != 48000000
-#error "the USB OTG driver requires a 48MHz clock"
-#endif
-
-#if (USB_HOST_WAKEUP_DURATION < 2) || (USB_HOST_WAKEUP_DURATION > 15)
-#error "invalid USB_HOST_WAKEUP_DURATION setting, it must be between 2 and 15"
-#endif
-
-/*===========================================================================*/
-/* Driver data structures and types. */
-/*===========================================================================*/
-
-/**
- * @brief Peripheral-specific parameters block.
- */
-typedef struct {
- uint32_t rx_fifo_size;
- uint32_t otg_ram_size;
- uint32_t num_endpoints;
-} stm32_otg_params_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 Total transmit transfer size.
- */
- size_t totsize;
-} 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 Total receive transfer size.
- */
- size_t totsize;
-} 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 Determines the space allocated for the TXFIFO as multiples of
- * the packet size (@p in_maxsize). Note that zero is interpreted
- * as one for simplicity and robustness.
- */
- uint16_t in_multiplier;
- /**
- * @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 Pointer to the OTG peripheral associated to this driver.
- */
- stm32_otg_t *otg;
- /**
- * @brief Peripheral-specific parameters.
- */
- const stm32_otg_params_t *otgparams;
- /**
- * @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.
- */
- uint32_t txpending;
- /**
- * @brief Pointer to the thread when it is sleeping or @p NULL.
- */
- thread_reference_t wait;
-#if defined(_CHIBIOS_RT_)
- /**
- * @brief Pointer to the thread.
- */
- thread_reference_t tr;
- /**
- * @brief Working area for the dedicated data pump thread;
- */
- THD_WORKING_AREA(wa_pump, STM32_USB_OTG_THREAD_STACK_SIZE);
-#endif
-#endif
-};
-
-/*===========================================================================*/
-/* Driver macros. */
-/*===========================================================================*/
-
-/**
- * @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 (STM32_OTG_STEPPING == 1) || defined(__DOXYGEN__)
-#define usb_lld_connect_bus(usbp) ((usbp)->otg->GCCFG |= GCCFG_VBUSBSEN)
-#else
-#define usb_lld_connect_bus(usbp) ((usbp)->otg->DCTL &= ~DCTL_SDIS)
-#endif
-
-/**
- * @brief Disconnect the USB device.
- *
- * @notapi
- */
-#if (STM32_OTG_STEPPING == 1) || defined(__DOXYGEN__)
-#define usb_lld_disconnect_bus(usbp) ((usbp)->otg->GCCFG &= ~GCCFG_VBUSBSEN)
-#else
-#define usb_lld_disconnect_bus(usbp) ((usbp)->otg->DCTL |= DCTL_SDIS)
-#endif
-
-/**
- * @brief Start of host wake-up procedure.
- *
- * @notapi
- */
-#define usb_lld_wakeup_host(usbp) \
- do{ \
- (usbp)->otg->DCTL |= DCTL_RWUSIG; \
- osalThreadSleepMilliseconds(USB_HOST_WAKEUP_DURATION); \
- (usbp)->otg->DCTL &= ~DCTL_RWUSIG; \
- } while (false)
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#if STM32_USB_USE_OTG1 && !defined(__DOXYGEN__)
-extern USBDriver USBD1;
-#endif
-
-#if STM32_USB_USE_OTG2 && !defined(__DOXYGEN__)
-extern USBDriver USBD2;
-#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);
- void usb_lld_pump(void *p);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HAL_USE_USB */
-
-#endif /* HAL_USB_LLD_H */
-
-/** @} */
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