diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-03-26 13:45:36 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-03-26 13:45:36 +0000 |
| commit | f153a37e010fb829291766a1add5ca6e2ba06c52 (patch) | |
| tree | fcca7f7e6ce25f8ecd0b06b3fe9ba444af8a5e40 /os | |
| parent | 489de88f3c2fbaae3d89f684365bc63d61e0bd49 (diff) | |
| download | ChibiOS-f153a37e010fb829291766a1add5ca6e2ba06c52.tar.gz ChibiOS-f153a37e010fb829291766a1add5ca6e2ba06c52.tar.bz2 ChibiOS-f153a37e010fb829291766a1add5ca6e2ba06c52.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4057 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os')
| -rw-r--r-- | os/hal/platforms/STM32/OTGv1/usb_lld.c | 444 | ||||
| -rw-r--r-- | os/hal/platforms/STM32/OTGv1/usb_lld.h | 358 |
2 files changed, 802 insertions, 0 deletions
diff --git a/os/hal/platforms/STM32/OTGv1/usb_lld.c b/os/hal/platforms/STM32/OTGv1/usb_lld.c new file mode 100644 index 000000000..177f80e14 --- /dev/null +++ b/os/hal/platforms/STM32/OTGv1/usb_lld.c @@ -0,0 +1,444 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file STM32/OTGv1/usb_lld.c
+ * @brief STM32 USB subsystem low level driver source.
+ *
+ * @addtogroup USB
+ * @{
+ */
+
+#include <string.h>
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_USB || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/** @brief OTG1 driver identifier.*/
+#if STM32_USB_USE_OTG1 || defined(__DOXYGEN__)
+USBDriver USBD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/**
+ * @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 EP0 initialization structure.
+ */
+static const USBEndpointConfig ep0config = {
+ USB_EP_MODE_TYPE_CTRL | USB_EP_MODE_TRANSACTION,
+ _usb_ep0setup,
+ _usb_ep0in,
+ _usb_ep0out,
+ 0x40,
+ 0x40,
+ &ep0_state.in,
+ &ep0_state.out
+};
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Resets the RX FIFO memory allocator.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ */
+static void rxfifo_reset(USBDriver *usbp) {
+
+}
+
+/**
+ * @brief Resets the RX FIFO memory allocator.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ * @param[in] size size of the packet buffer to allocate
+ */
+static uint32_t rxfifo_alloc(USBDriver *usbp, size_t size) {
+
+ return 0;
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+#if STM32_USB_USE_OTG1 || defined(__DOXYGEN__)
+/**
+ * @brief OTG1 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(OTG_FS_IRQHandler) {
+
+ CH_IRQ_PROLOGUE();
+
+ CH_IRQ_EPILOGUE();
+}
+#endif
+
+/*===========================================================================*/
+/* 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_OTG1
+ if (&USBD1 == usbp) {
+ /* USB clock enabled.*/
+ rccEnableOTG1(FALSE);
+ /* Enables IRQ vector.*/
+ nvicEnableVector(OTG_FS_IRQn,
+ CORTEX_PRIORITY_MASK(STM32_USB_OTG1_IRQ_PRIORITY));
+ }
+#endif
+ /* Reset procedure enforced on driver start.*/
+ _usb_reset(usbp);
+ }
+ /* Configuration.*/
+}
+
+/**
+ * @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) {
+ nvicDisableVector(OTG_FS_IRQn);
+ rccDisableOTG1(FALSE);
+ }
+#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.*/
+
+ /* Resets the packet memory allocator.*/
+ rxfifo_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) {
+
+}
+
+/**
+ * @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) {
+
+}
+
+/**
+ * @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) {
+
+}
+
+/**
+ * @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) {
+
+}
+
+/**
+ * @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) {
+
+}
+
+/**
+ * @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) {
+
+}
+
+/**
+ * @brief Reads from a dedicated packet buffer.
+ * @pre In order to use this function he endpoint must have been
+ * initialized in packet mode.
+ * @note This function can be invoked both in thread and IRQ context.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ * @param[in] ep endpoint number
+ * @param[out] buf buffer where to copy the packet data
+ * @param[in] n maximum number of bytes to copy. This value must
+ * not exceed the maximum packet size for this endpoint.
+ * @return The received packet size regardless the specified
+ * @p n parameter.
+ * @retval 0 Zero size packet received.
+ *
+ * @notapi
+ */
+size_t usb_lld_read_packet_buffer(USBDriver *usbp, usbep_t ep,
+ uint8_t *buf, size_t n) {
+
+ return 0;
+}
+
+/**
+ * @brief Writes to a dedicated packet buffer.
+ * @pre In order to use this function he endpoint must have been
+ * initialized in packet mode.
+ * @note This function can be invoked both in thread and IRQ context.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ * @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
+ */
+void usb_lld_write_packet_buffer(USBDriver *usbp, usbep_t ep,
+ const uint8_t *buf, size_t n) {
+
+}
+
+/**
+ * @brief Prepares for a receive operation.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ * @param[in] ep endpoint number
+ * @param[out] buf buffer where to copy the received data
+ * @param[in] n maximum number of bytes to copy
+ *
+ * @notapi
+ */
+void usb_lld_prepare_receive(USBDriver *usbp, usbep_t ep,
+ uint8_t *buf, size_t n) {
+
+}
+
+/**
+ * @brief Prepares for a transmit operation.
+ *
+ * @param[in] usbp pointer to the @p USBDriver object
+ * @param[in] ep endpoint number
+ * @param[in] buf buffer where to fetch the data to be transmitted
+ * @param[in] n maximum number of bytes to copy
+ *
+ * @notapi
+ */
+void usb_lld_prepare_transmit(USBDriver *usbp, usbep_t ep,
+ const uint8_t *buf, size_t n) {
+
+}
+
+/**
+ * @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) {
+
+ (void)usbp;
+
+}
+
+/**
+ * @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) {
+
+ (void)usbp;
+
+}
+
+/**
+ * @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;
+
+}
+
+/**
+ * @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;
+
+}
+
+/**
+ * @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;
+
+}
+
+/**
+ * @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;
+
+}
+
+#endif /* HAL_USE_USB */
+
+/** @} */
diff --git a/os/hal/platforms/STM32/OTGv1/usb_lld.h b/os/hal/platforms/STM32/OTGv1/usb_lld.h new file mode 100644 index 000000000..cf5c0c628 --- /dev/null +++ b/os/hal/platforms/STM32/OTGv1/usb_lld.h @@ -0,0 +1,358 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file STM32/OTGv1/usb_lld.h
+ * @brief STM32 USB subsystem low level driver header.
+ *
+ * @addtogroup USB
+ * @{
+ */
+
+#ifndef _USB_LLD_H_
+#define _USB_LLD_H_
+
+#if HAL_USE_USB || defined(__DOXYGEN__)
+
+#include "stm32_usb.h"
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Maximum endpoint address.
+ */
+#define USB_MAX_ENDPOINTS 3
+
+/**
+ * @brief The address can be changed immediately upon packet reception.
+ */
+#define USB_SET_ADDRESS_MODE USB_EARLY_SET_ADDRESS
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief OTG1 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_OTG1) || defined(__DOXYGEN__)
+#define STM32_USB_USE_OTG1 TRUE
+#endif
+
+/**
+ * @brief OTG1 interrupt priority level setting.
+ */
+#if !defined(STM32_USB_OTG1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define STM32_USB_OTG1_IRQ_PRIORITY 6
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if STM32_USB_USE_OTG1 && !STM32_HAS_OTG1
+#error "OTG1 not present in the selected device"
+#endif
+
+#if !STM32_USB_USE_OTG1
+#error "USB driver activated but no USB peripheral assigned"
+#endif
+
+//#if STM32_USBCLK != 48000000
+//#error "the USB driver requires a 48MHz clock"
+//#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of an endpoint state structure.
+ */
+typedef struct {
+ /**
+ * @brief Pointer to the transmission buffer.
+ */
+ const uint8_t *txbuf;
+ /**
+ * @brief Requested transmit transfer size.
+ */
+ size_t txsize;
+ /**
+ * @brief Transmitted bytes so far.
+ */
+ size_t txcnt;
+} USBInEndpointState;
+
+/**
+ * @brief Type of an endpoint state structure.
+ */
+typedef struct {
+ /**
+ * @brief Number of packets to receive.
+ */
+ uint16_t rxpkts;
+ /**
+ * @brief Pointer to the receive buffer.
+ */
+ uint8_t *rxbuf;
+ /**
+ * @brief Requested receive transfer size.
+ */
+ size_t rxsize;
+ /**
+ * @brief Received bytes so far.
+ */
+ size_t rxcnt;
+} 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 the IN endpoint is not
+ * used.
+ */
+ usbepcallback_t in_cb;
+ /**
+ * @brief OUT endpoint notification callback.
+ * @details This field must be set to @p NULL if the OUT endpoint is not
+ * used.
+ */
+ 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 structure maintains the state of the IN endpoint when
+ * the endpoint is not in packet mode. Endpoints configured in
+ * packet mode must set this field to @p NULL.
+ */
+ USBInEndpointState *in_state;
+ /**
+ * @brief @p USBEndpointState associated to the OUT endpoint.
+ * @details This structure maintains the state of the OUT endpoint when
+ * the endpoint is not in packet mode. Endpoints configured in
+ * packet mode must set this field to @p NULL.
+ */
+ USBOutEndpointState *out_state;
+ /* End of the mandatory fields.*/
+} 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 Field available to user, it can be used to associate an
+ * application-defined handler to the USB driver.
+ */
+ void *param;
+ /**
+ * @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 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;
+#if defined(USB_DRIVER_EXT_FIELDS)
+ USB_DRIVER_EXT_FIELDS
+#endif
+ /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @brief Fetches a 16 bits word value from an USB message.
+ *
+ * @param[in] p pointer to the 16 bits word
+ *
+ * @notapi
+ */
+#define usb_lld_fetch_word(p) (*(uint16_t *)(p))
+
+/**
+ * @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)
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if STM32_USB_USE_OTG1 && !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);
+ size_t usb_lld_read_packet_buffer(USBDriver *usbp, usbep_t ep,
+ uint8_t *buf, size_t n);
+ void usb_lld_write_packet_buffer(USBDriver *usbp, usbep_t ep,
+ const uint8_t *buf, size_t n);
+ void usb_lld_prepare_receive(USBDriver *usbp, usbep_t ep,
+ uint8_t *buf, size_t n);
+ void usb_lld_prepare_transmit(USBDriver *usbp, usbep_t ep,
+ const uint8_t *buf, size_t n);
+ 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 /* _USB_LLD_H_ */
+
+/** @} */
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