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USBDevice with MAX32620HSP platform support
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USBDevice
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Diff: USBDevice/USBHAL_EFM32.cpp
- Revision:
- 59:2af474687369
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBHAL_EFM32.cpp Thu Aug 13 15:46:06 2015 +0100
@@ -0,0 +1,775 @@
+/* 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