Martin Kojtal
a
Fork of
USBDevice
by 
mbed official
Diff: USBDevice/USBHAL_EFM32.cpp
- Revision:
- 71:53949e6131f6
- Parent:
- 70:2c525a50f1b6
--- a/USBDevice/USBHAL_EFM32.cpp Thu Jul 20 10:14:36 2017 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,775 +0,0 @@
-/* Copyright 2015 Silicon Labs, http://www.silabs.com
- *
- * 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.
- */
-
-#if defined TARGET_EFM32GG_STK3700 || \
- defined TARGET_EFM32LG_STK3600 || \
- defined TARGET_EFM32WG_STK3800 || \
- defined TARGET_EFM32HG_STK3400
-
-#include "USBHAL.h"
-#include "em_usb.h"
-#include "em_usbtypes.h"
-#include "em_usbhal.h"
-#include "em_usbd.h"
-
-#include "sleepmodes.h"
-
-enum USBISRCommand {
- CMD_HANDLED = 0,
- CMD_EP0SETUP,
- CMD_EP0IN,
- CMD_EP0OUT,
- CMD_EP_XFER_COMPLETED,
- CMD_SOF,
- CMD_BUSRESET,
- CMD_SUSPEND_STATE_CHANGED,
- CMD_ENUM_END_MARKER
-};
-
-enum IEPStatus {
- NOT_CONFIGURED = 0,
- IDLE = 1,
- READ_PENDING = 2,
- WRITE_PENDING = 3,
- READ_COMPLETE = 4,
- WRITE_COMPLETE = 5,
- FAILED_INVALID = 6,
- FAILED_STALLED = 7
-};
-
-typedef struct {
- IEPStatus status;
- uint32_t byte_count;
- uint32_t max_packet;
- USB_XferCompleteCb_TypeDef intern_cb;
- uint8_t *data_buf;
-} ep_state_t;
-
-USBHAL * USBHAL::instance;
-static uint8_t ep0setupdata[8];
-static ep_state_t ep_state[NUMBER_OF_ENDPOINTS];
-#ifdef USB_USE_DYNAMIC_MEMORY
-static uint8_t ep0in_data_buf[MAX_PACKET_SIZE_EP0] __attribute__ ((aligned (4)));
-static uint8_t ep0out_data_buf[MAX_PACKET_SIZE_EP0]; // FIXME: does this need to be this big?
-#else
-static uint8_t ep_data_buf[NUMBER_OF_ENDPOINTS][64] __attribute__ ((aligned (4)));
-#endif
-
-static void run_cmd(USBISRCommand cmd, uint32_t param);
-static void (*isrptr)() = NULL;
-static USBISRCommand usb_isrcmd = CMD_HANDLED;
-static uint32_t usb_isrcmd_param = 0;
-
-extern "C" void usbhal_allow_em2(bool allow_em2);
-
-#ifdef DEBUG_USB_API
-#define TRACE(fmt,...) printf("USB: %s: " fmt "\n", __func__, __VA_ARGS__);
-#define TRACE_FUNC_IN printf("USB: > %s\n",__func__);
-#define TRACE_FUNC_IN_P(fmt, ...) printf("USB: > %s: " fmt "\n", __func__, __VA_ARGS__);
-#else
-#define TRACE(fmt,...)
-#define TRACE_FUNC_IN
-#define TRACE_FUNC_IN_P(fmt, ...)
-#endif
-
-static EP_STATUS internEndpointRead(uint8_t ep, uint32_t maxSize);
-
-static int usbhal_xfer_complete_cb(uint8_t epaddr, USB_Status_TypeDef status,
- uint32_t xferred, uint32_t remaining);
-static void usbhal_free_buffers(void);
-
-/* Internal EP transfer complete callbacks */
-#define EPCB(n) static int usbhal_xfer_complete_cb_##n(USB_Status_TypeDef status, \
- uint32_t xferred, uint32_t remaining) { \
- return usbhal_xfer_complete_cb(n, status, xferred, remaining); \
-}
-/* ------^ */
-EPCB(EP0OUT)
-EPCB(EP0IN)
-EPCB(EP1OUT)
-EPCB(EP1IN)
-EPCB(EP2OUT)
-EPCB(EP2IN)
-EPCB(EP3OUT)
-EPCB(EP3IN)
-#ifndef TARGET_EFM32HG_STK3400
-EPCB(EP4OUT)
-EPCB(EP4IN)
-EPCB(EP5OUT)
-EPCB(EP5IN)
-EPCB(EP6OUT)
-EPCB(EP6IN)
-#endif
-
-static inline bool is_aligned(const void *pointer, size_t byte_count)
-{
- return ((uintptr_t)pointer % byte_count == 0);
-}
-
-USBHAL::USBHAL(void)
-{
- TRACE_FUNC_IN;
-
- isrptr = &USBHAL::_usbisr;
-
- if (instance) {
- TRACE("Assert self failed! instance=%p", instance);
- abort();
- }
- instance = this;
-
- // When USB is active, we can't go below EM1. This block may
- // be dynamically removed/reinstated to allow deeper sleep.
- usbhal_allow_em2(false);
-
- // When in suspend / Vbus off we can go to EM2, but never below
- // that as long as USB is being used. Despite the name the call here
- // blocks entering modes _below_ EM2, but allows EM2.
- blockSleepMode(EM2);
-
- epCallback[EP0OUT] = NULL;
- epCallback[EP0IN ] = NULL;
- epCallback[EP1OUT] = &USBHAL::EP1_OUT_callback;
- epCallback[EP1IN ] = &USBHAL::EP1_IN_callback;
- epCallback[EP2OUT] = &USBHAL::EP2_OUT_callback;
- epCallback[EP2IN ] = &USBHAL::EP2_IN_callback;
- epCallback[EP3OUT] = &USBHAL::EP3_OUT_callback;
- epCallback[EP3IN ] = &USBHAL::EP3_IN_callback;
-#ifndef TARGET_EFM32HG_STK3400
- epCallback[EP4OUT] = &USBHAL::EP4_OUT_callback;
- epCallback[EP4IN ] = &USBHAL::EP4_IN_callback;
- epCallback[EP5OUT] = &USBHAL::EP5_OUT_callback;
- epCallback[EP5IN ] = &USBHAL::EP5_IN_callback;
- epCallback[EP6OUT] = &USBHAL::EP6_OUT_callback;
- epCallback[EP6IN ] = &USBHAL::EP6_IN_callback;
-#endif
-
- memset(ep_state, 0, sizeof(ep_state));
-
- ep_state[EP0OUT].intern_cb = usbhal_xfer_complete_cb_EP0OUT;
- ep_state[EP0IN ].intern_cb = usbhal_xfer_complete_cb_EP0IN;
- ep_state[EP1OUT].intern_cb = usbhal_xfer_complete_cb_EP1OUT;
- ep_state[EP1IN ].intern_cb = usbhal_xfer_complete_cb_EP1IN;
- ep_state[EP2OUT].intern_cb = usbhal_xfer_complete_cb_EP2OUT;
- ep_state[EP2IN ].intern_cb = usbhal_xfer_complete_cb_EP2IN;
- ep_state[EP3OUT].intern_cb = usbhal_xfer_complete_cb_EP3OUT;
- ep_state[EP3IN ].intern_cb = usbhal_xfer_complete_cb_EP3IN;
-#ifndef TARGET_EFM32HG_STK3400
- ep_state[EP4OUT].intern_cb = usbhal_xfer_complete_cb_EP4OUT;
- ep_state[EP4IN ].intern_cb = usbhal_xfer_complete_cb_EP4IN;
- ep_state[EP5OUT].intern_cb = usbhal_xfer_complete_cb_EP5OUT;
- ep_state[EP5IN ].intern_cb = usbhal_xfer_complete_cb_EP5IN;
- ep_state[EP6OUT].intern_cb = usbhal_xfer_complete_cb_EP6OUT;
- ep_state[EP6IN ].intern_cb = usbhal_xfer_complete_cb_EP6IN;
-#endif
-
-#ifdef USB_USE_DYNAMIC_MEMORY
- ep_state[EP0OUT].data_buf = ep0out_data_buf;
- ep_state[EP0IN].data_buf = ep0in_data_buf;
-#else
- for (int i=0 ; i<NUMBER_OF_ENDPOINTS ; i++) {
- ep_state[i].data_buf = ep_data_buf[i];
- }
-#endif
-}
-
-USBHAL::~USBHAL(void)
-{
- TRACE_FUNC_IN;
- USBD_AbortAllTransfers();
- USBD_Disconnect();
- usbhal_free_buffers();
-
- usbhal_allow_em2(true);
- unblockSleepMode(EM2);
-}
-
-extern "C" void usbhal_allow_em2(bool allow_em2)
-{
- if (allow_em2) {
- // unblockSleepMode is safe to call even if we would unblock
- // an already unblocked mode, so no checks here.
- unblockSleepMode(EM1);
- } else {
- blockSleepMode(EM1);
- }
-}
-
-static void usbhal_reset_cb(void)
-{
- TRACE_FUNC_IN;
- run_cmd(CMD_BUSRESET, 0);
-}
-
-#ifdef DEBUG_USB_API
-static const char *usbstate[] = { "NONE", "ATTACHED", "POWERED", "DEFAULT",
- "ADDRESSED", "CONFIGURED", "SUSPENDED", "???" };
-#endif
-
-static void usbhal_state_change_cb(USBD_State_TypeDef oldState,
- USBD_State_TypeDef newState)
-{
- TRACE("state changed %s -> %s", usbstate[oldState], usbstate[newState]);
-
- if (oldState == USBD_STATE_SUSPENDED) {
- run_cmd(CMD_SUSPEND_STATE_CHANGED, 0);
- }
-
- if (newState == USBD_STATE_SUSPENDED) {
- run_cmd(CMD_SUSPEND_STATE_CHANGED, 1);
- }
-
- // Should call connectStateChanged from here as well but there is
- // no documentation on when to actually do so. (And the implementation
- // in USBDevice.cpp is a stub)
-
- // HACK! Since connectStateChanged is not used, indicate the loss
- // off connection by reporting a bus reset. This causes USBDevice
- // to realise that at least it's not in CONFIGURED anymore, and
- // stop trying to read/write in a busyloop.
- if (newState == USBD_STATE_NONE) {
- run_cmd(CMD_BUSRESET, 0);
- }
-}
-
-static int usbhal_setupcmd_cb(const USB_Setup_TypeDef *setup)
-{
- TRACE_FUNC_IN;
- if (!setup) {
- EFM_ASSERT(false);
- return USB_STATUS_REQ_ERR;
- }
-
- memcpy(ep0setupdata, setup, 8);
- run_cmd(CMD_EP0SETUP, 0);
-
- return USB_STATUS_OK;
-}
-
-static void usbhal_sof_cb(uint16_t frameNum)
-{
- run_cmd(CMD_SOF, frameNum);
-}
-
-static void usbhal_free_buffers(void)
-{
-#ifdef USB_USE_DYNAMIC_MEMORY
- TRACE_FUNC_IN;
-
- for (int i=EP1OUT ; i<NUMBER_OF_ENDPOINTS ; i++ ) {
- if (ep_state[i].data_buf) {
- free(ep_state[i].data_buf);
- ep_state[i].data_buf = NULL;
- }
- }
-#endif
-}
-
-void USBHAL::connect(void)
-{
- TRACE_FUNC_IN;
-
- // Init datastructures must be static - driver will use these even after the init function exits!
-
- static const uint8_t buffer_multiplier[] = { 1 }; // Mult 1 for control EP
- static const USBD_Callbacks_TypeDef usbd_callbacks = {
- .usbReset = usbhal_reset_cb,
- .usbStateChange = usbhal_state_change_cb,
- .setupCmd = usbhal_setupcmd_cb,
- .isSelfPowered = NULL,
- .sofInt = usbhal_sof_cb
- };
-
- USBD_Init_TypeDef initdata = {
- .deviceDescriptor = NULL,
- .configDescriptor = NULL,
- .stringDescriptors = NULL,
- .numberOfStrings = 0,
- .bufferingMultiplier = buffer_multiplier,
- .callbacks = &usbd_callbacks,
- .reserved = 0
- };
-
- int ret = USBD_Init(&initdata);
-
- TRACE("init = %d, devicedesc = %lx, configdesc = %lx", ret,
- (uint32_t) initdata.deviceDescriptor,
- (uint32_t) initdata.configDescriptor);
-
- EFM_ASSERT(ret == USB_STATUS_OK);
-}
-
-void USBHAL::disconnect(void)
-{
- TRACE_FUNC_IN;
- USBD_Disconnect();
-}
-
-void USBHAL::configureDevice(void)
-{
- TRACE_FUNC_IN;
- USBD_SetUsbState(USBD_STATE_CONFIGURED);
-}
-
-void USBHAL::unconfigureDevice(void)
-{
- TRACE_FUNC_IN;
- USBD_SetUsbState(USBD_STATE_DEFAULT);
- usbhal_free_buffers();
-}
-
-void USBHAL::setAddress(uint8_t address)
-{
- TRACE_FUNC_IN_P("addr 0x%x", (unsigned)address);
- USBD_SetAddress(address);
-}
-
-void USBHAL::remoteWakeup(void)
-{
- TRACE_FUNC_IN;
- USBD_RemoteWakeup();
-}
-
-void USBHAL::EP0setup(uint8_t *buffer)
-{
- TRACE_FUNC_IN;
- EFM_ASSERT(buffer);
- if (buffer) {
- memcpy(buffer, ep0setupdata, 8);
- }
-}
-
-void USBHAL::EP0read(void)
-{
- TRACE_FUNC_IN;
- (void)internEndpointRead(0, MAX_PACKET_SIZE_EP0);
-}
-
-void USBHAL::EP0readStage(void)
-{
- TRACE_FUNC_IN;
- // Not needed
-}
-
-uint32_t USBHAL::EP0getReadResult(uint8_t *buffer)
-{
- TRACE_FUNC_IN;
- EFM_ASSERT(buffer);
-
- uint32_t read = 0;
- endpointReadResult(0, buffer, &read);
- return read;
-}
-
-static int usbhal_xfer_complete_cb(uint8_t ep, USB_Status_TypeDef status,
- uint32_t xferred, uint32_t remaining)
-{
- TRACE_FUNC_IN_P("ep 0x%x, status %u, xferred %lu, rem %lu",
- ep, status, xferred, remaining);
-
- if (ep >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return USB_STATUS_REQ_ERR;
- }
-
- switch (ep) {
- case EP0OUT:
- if (ep_state[EP0OUT].status == READ_PENDING) {
- ep_state[EP0OUT].status = READ_COMPLETE;
- ep_state[EP0OUT].byte_count = xferred;
- // drop zlp
- if (xferred == 0) {
- break;
- }
- }
- run_cmd(CMD_EP0OUT, 0);
- break;
-
- case EP0IN:
- run_cmd(CMD_EP0IN, 0);
- break;
-
- default:
- bool write = ep & 1;
-
- if (status == USB_STATUS_OK) {
- if (!write && ep_state[ep].status == READ_PENDING) {
- ep_state[ep].status = READ_COMPLETE;
- ep_state[ep].byte_count = xferred;
- } else if (write && ep_state[ep].status == WRITE_PENDING) {
- ep_state[ep].status = WRITE_COMPLETE;
- } else {
- ep_state[ep].status = FAILED_INVALID;
- }
- } else {
- ep_state[ep].status = FAILED_INVALID;
- }
-
- if (ep_state[ep].status != FAILED_INVALID) {
- run_cmd(CMD_EP_XFER_COMPLETED, ep);
- }
- break;
- }
-
- return USB_STATUS_OK;
-}
-
-void USBHAL::EP0write(uint8_t *buffer, uint32_t size)
-{
- //TRACE_FUNC_IN_P("buffer %lx, size %lu", (uint32_t) buffer, size);
-
- int ret;
- USB_XferCompleteCb_TypeDef cb = ep_state[EP0IN].intern_cb;
-
- EFM_ASSERT((buffer != NULL) || (size == 0));
- EFM_ASSERT(size <= MAX_PACKET_SIZE_EP0);
-
- if (!buffer || size == 0) {
- // No callback after writing EP0 ZLP
- cb = NULL;
- }
-
- if (buffer && !is_aligned(buffer,4)) {
- // Copy unaligned data to write-buffer before USBD_Write
- memcpy(ep_state[EP0IN].data_buf, buffer, size);
- ret = USBD_Write(0, ep_state[EP0IN].data_buf, size, cb);
- } else {
- ret = USBD_Write(0, buffer, size, cb);
- }
-
- if (ret != USB_STATUS_OK) {
- TRACE("FAILED - ret %d", ret);
- }
-}
-
-void USBHAL::EP0stall(void)
-{
- TRACE_FUNC_IN;
- USBD_StallEp0();
-}
-
-static EP_STATUS internEndpointRead(uint8_t ep, uint32_t maxSize)
-{
- //TRACE_FUNC_IN_P("endpoint 0x%x, size %ld, cb %d", (unsigned)ep, maxSize, useCallback);
-
- if (ep >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return EP_INVALID;
- }
-
- ep_state[ep].status = READ_PENDING;
-
- int ret = USBD_Read(USB_EP_TO_ADDR(ep), ep_state[ep].data_buf, maxSize,
- ep_state[ep].intern_cb);
-
- if (ret == USB_STATUS_OK) {
- return EP_PENDING;
- } else {
- TRACE("FAILED - ret %d", ret);
-
- if (ret == USB_STATUS_EP_STALLED) {
- return EP_STALLED;
- } else {
- return EP_INVALID;
- }
- }
-}
-
-EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize)
-{
- return internEndpointRead(endpoint, maximumSize);
-}
-
-EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t *data, uint32_t *bytesRead)
-{
- TRACE_FUNC_IN;
-
- if (endpoint >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return EP_INVALID;
- }
-
- EFM_ASSERT(data);
- EFM_ASSERT(bytesRead);
- if (!data || !bytesRead) {
- return EP_INVALID;
- }
-
- switch (ep_state[endpoint].status) {
- case READ_PENDING:
- return EP_PENDING;
-
- case READ_COMPLETE:
- memcpy(data, ep_state[endpoint].data_buf, ep_state[endpoint].byte_count);
- *bytesRead = ep_state[endpoint].byte_count;
- ep_state[endpoint].status = IDLE;
- return EP_COMPLETED;
-
- case FAILED_STALLED:
- ep_state[endpoint].status = IDLE;
- return EP_STALLED;
-
- default:
- ep_state[endpoint].status = IDLE;
- return EP_INVALID;
- }
-}
-
-EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size)
-{
- TRACE_FUNC_IN_P("endpoint 0x%x, data 0x%lx, size %lu", (unsigned )endpoint, (uint32_t)data, size);
-
- EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
- EFM_ASSERT(endpoint > EP0IN);
- EFM_ASSERT(size <= ep_state[endpoint].max_packet);
- EFM_ASSERT(data);
-
- uint8_t ep = USB_EP_TO_INDEX(endpoint);
-
- if (endpoint >= NUMBER_OF_ENDPOINTS || endpoint <= EP0IN) {
- return EP_INVALID;
- }
-
- if (size > ep_state[endpoint].max_packet) {
- return EP_INVALID;
- }
-
- if (!data) {
- return EP_INVALID;
- }
-
- memcpy(ep_state[ep].data_buf, data, size);
-
- ep_state[ep].status = WRITE_PENDING;
- int ret = USBD_Write(USB_EP_TO_ADDR(endpoint), ep_state[ep].data_buf, size, ep_state[ep].intern_cb);
-
- if (ret == USB_STATUS_EP_STALLED) {
- ep_state[ep].status = IDLE;
- return EP_STALLED;
- } else if (ret != USB_STATUS_OK) {
- ep_state[ep].status = IDLE;
- return EP_INVALID;
- }
-
- return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint)
-{
- if (endpoint >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return EP_INVALID;
- }
-
- switch (ep_state[endpoint].status) {
- case WRITE_PENDING:
- return EP_PENDING;
-
- case WRITE_COMPLETE:
- ep_state[endpoint].status = IDLE;
- return EP_COMPLETED;
-
- case FAILED_STALLED:
- ep_state[endpoint].status = IDLE;
- return EP_STALLED;
-
- default:
- ep_state[endpoint].status = IDLE;
- return EP_INVALID;
- }
-}
-
-void USBHAL::stallEndpoint(uint8_t endpoint)
-{
- TRACE_FUNC_IN;
-
- EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
- EFM_ASSERT((endpoint != EP0OUT) && (endpoint != EP0IN));
-
- USBD_StallEp(USB_EP_TO_ADDR(endpoint));
-}
-
-void USBHAL::unstallEndpoint(uint8_t endpoint)
-{
- TRACE_FUNC_IN;
-
- EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
- EFM_ASSERT((endpoint != EP0OUT) && (endpoint != EP0IN));
-
- USBD_UnStallEp(USB_EP_TO_ADDR(endpoint));
-}
-
-bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t options)
-{
- TRACE_FUNC_IN_P("endpoint %d, packetsize %ld, options 0x%lx", endpoint,
- maxPacket, options);
-
- int mult = 1; // RX/TX buffer size multiplier
- int type = USB_EPTYPE_INTR;
-
- if (endpoint >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return false;
- }
-
- if (endpoint == EP0IN || endpoint == EP0OUT) {
- EFM_ASSERT(false);
- return false;
- }
-
- ep_state[endpoint].max_packet = 0;
-
- if (endpoint == EPISO_OUT || endpoint == EPISO_IN) {
- if (maxPacket > MAX_PACKET_SIZE_EPISO) {
- EFM_ASSERT(false);
- return false;
- }
- } else if ((maxPacket > MAX_PACKET_SIZE_EPBULK) || (maxPacket > MAX_PACKET_SIZE_EPINT)) {
- EFM_ASSERT(false);
- return false;
- }
-
- // USBDevice performs a read right after creating the endpoints,
- // before calling configureDevice. The read will fail since
- // at that point the device state is still ADDRESSED. Workaround
- // is to force configured state here.
- //
- // This relies on USBDevice to not call realiseEndpoint unless
- // it is transitioning to the CONFIGURED state.
- USBD_SetUsbState(USBD_STATE_CONFIGURED);
-
- // Why doesn't this function have a type param? This is silly...
- switch (endpoint) {
- case EPBULK_OUT:
- case EPBULK_IN:
- type = USB_EPTYPE_BULK;
- mult = 2;
- break;
- case EPINT_OUT:
- case EPINT_IN:
- type = USB_EPTYPE_INTR;
- mult = 1;
- break;
- case EPISO_OUT:
- case EPISO_IN:
- type = USB_EPTYPE_ISOC;
- mult = 2; // ?
- break;
- }
-
- // Some options force the endpoint to a specific type
- if( options & ISOCHRONOUS ) {
- type = USB_EPTYPE_ISOC;
- mult = 2; // ?
- } else if ( options & RATE_FEEDBACK_MODE ) {
- // No support for whatever rate feedback is, but for interrupt only
- type = USB_EPTYPE_INTR;
- mult = 1;
- }
-
-#ifdef USB_USE_DYNAMIC_MEMORY
- if (ep_state[endpoint].data_buf) {
- free(ep_state[endpoint].data_buf);
- }
-
- ep_state[endpoint].data_buf = (uint8_t *)malloc(maxPacket);
-
- if (!ep_state[endpoint].data_buf) {
- EFM_ASSERT(false);
- return false;
- }
-#endif
-
- int ret = USBD_AddEndpoint(USB_EP_TO_ADDR(endpoint), type, maxPacket, mult);
-
- if (ret == USB_STATUS_OK) {
- ep_state[endpoint].status = IDLE;
- ep_state[endpoint].max_packet = maxPacket;
- return true;
- } else {
- return false;
- }
-}
-
-bool USBHAL::getEndpointStallState(unsigned char endpoint)
-{
- TRACE_FUNC_IN;
- if (endpoint >= NUMBER_OF_ENDPOINTS) {
- EFM_ASSERT(false);
- return false;
- }
- return USBD_EpIsStalled(USB_EP_TO_ADDR(endpoint));
-}
-
-static void run_cmd(USBISRCommand cmd, uint32_t param)
-{
- if (usb_isrcmd != CMD_HANDLED || cmd >= CMD_ENUM_END_MARKER) {
- EFM_ASSERT(false);
- abort();
- }
-
- usb_isrcmd = cmd;
- usb_isrcmd_param = param;
- isrptr();
-}
-
-void USBHAL::_usbisr(void)
-{
- EFM_ASSERT(instance);
- instance->usbisr();
-}
-
-void USBHAL::usbisr(void)
-{
- //TRACE_FUNC_IN;
-
- // This "ISR" is used just to route callbacks from SiL USB driver
- // callback context (which can not call protected/private USBHAL
- // methods), to the actual USBHAL.
-
- EFM_ASSERT(usb_isrcmd != CMD_HANDLED);
- switch (usb_isrcmd) {
- case CMD_EP0SETUP:
- this->EP0setupCallback();
- break;
- case CMD_EP0IN:
- this->EP0in();
- break;
- case CMD_EP0OUT:
- this->EP0out();
- break;
- case CMD_BUSRESET:
- this->busReset();
- break;
- case CMD_EP_XFER_COMPLETED:
- if (epCallback[usb_isrcmd_param] && instance) {
- (instance->*(epCallback[usb_isrcmd_param]))();
- }
- break;
- case CMD_SOF:
- this->SOF(usb_isrcmd_param);
- break;
- case CMD_SUSPEND_STATE_CHANGED:
- this->suspendStateChanged(usb_isrcmd_param);
- break;
- default:
- EFM_ASSERT(false);
- break;
- }
- usb_isrcmd = CMD_HANDLED;
-}
-#endif
-
-// End of file