Diff: USBDevice/USBHAL_STM32F1.cpp

Revision:

65:48fe9050cb4a

Parent:

64:c3d0530b6d82

Child:

71:4e9a69384cac

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBHAL_STM32F1.cpp	Fri Jul 08 21:16:25 2016 +0000
@@ -0,0 +1,381 @@
+/* Copyright (c) 2010-2015 mbed.org, MIT License
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+* and associated documentation files (the "Software"), to deal in the Software without
+* restriction, including without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or
+* substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include "USBDevice.h"
+
+#define USB_LP_IRQn USB_LP_CAN1_RX0_IRQn
+const uint8_t PCD_EP_TYPE_CTRL = EP_TYPE_CTRL;
+const uint8_t PCD_EP_TYPE_INTR = EP_TYPE_INTR;
+const uint8_t PCD_EP_TYPE_BULK = EP_TYPE_BULK;
+const uint8_t PCD_EP_TYPE_ISOC = EP_TYPE_ISOC;
+
+static PCD_HandleTypeDef hpcd_USB_FS;
+static volatile int epComplete = 0;
+
+USBHAL * USBHAL::instance;
+uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {return 0;}
+
+USBHAL::USBHAL(void) {
+    hpcd_USB_FS.pData = this;
+    hpcd_USB_FS.Instance = USB;
+    hpcd_USB_FS.Init.dev_endpoints = 8;
+    hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
+    hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_8;
+    hpcd_USB_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
+    hpcd_USB_FS.Init.Sof_enable = DISABLE;
+    hpcd_USB_FS.Init.low_power_enable = DISABLE;
+    hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
+    NVIC_SetVector(USB_LP_IRQn, (uint32_t)&_usbisr);
+    HAL_PCD_Init(&hpcd_USB_FS);
+    HAL_PCD_Start(&hpcd_USB_FS);
+}
+
+void HAL_PCD_MspInit(PCD_HandleTypeDef* hpcd) {
+    __USB_CLK_ENABLE();
+    HAL_NVIC_SetPriority(USB_LP_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(USB_LP_IRQn);
+}
+
+void HAL_PCD_MspDeInit(PCD_HandleTypeDef* hpcd) {
+    __USB_CLK_DISABLE(); // Peripheral clock disable
+    HAL_NVIC_DisableIRQ(USB_LP_IRQn); // Peripheral interrupt Deinit
+}
+
+USBHAL::~USBHAL(void) {
+    HAL_PCD_DeInit(&hpcd_USB_FS);
+}
+
+void USBHAL::connect(void) {
+    HAL_PCD_DevConnect(&hpcd_USB_FS);
+}
+
+void USBHAL::disconnect(void) {
+    HAL_PCD_DevDisconnect(&hpcd_USB_FS);
+}
+
+void USBHAL::configureDevice(void) {
+    // Not needed
+}
+void USBHAL::unconfigureDevice(void) {
+    // Not needed
+}
+
+void USBHAL::setAddress(uint8_t address) {
+    HAL_PCD_SetAddress(&hpcd_USB_FS, address);
+}
+
+class PacketBufferAreaManager {
+public:
+    PacketBufferAreaManager(int bufsize_):bufsize(bufsize_) {
+        reset();
+    }
+    void reset() { 
+        head = 0; 
+        tail = bufsize; 
+    }
+    int allocBuf(int maxPacketSize) {
+        head += 4;
+        tail -= maxPacketSize;
+        if (tail < head) {
+            return 0;
+        }
+        return tail;
+    }
+private:
+    int head,tail;
+    int bufsize;
+} PktBufArea(512);
+
+bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
+    int pmaadress = PktBufArea.allocBuf(maxPacket);
+    MBED_ASSERT(pmaadress != 0);
+    if (pmaadress == 0) {
+        return false;
+    }
+    PCD_HandleTypeDef *hpcd = &hpcd_USB_FS;
+    uint8_t ep_type;
+    switch(endpoint) {
+        case EP0OUT:
+            HAL_PCDEx_PMAConfig(hpcd, 0x00, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x00, maxPacket, PCD_EP_TYPE_CTRL);
+            break;
+        case EP0IN:
+            HAL_PCDEx_PMAConfig(hpcd, 0x80, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x80, maxPacket, PCD_EP_TYPE_CTRL);
+            break;
+        case EPINT_OUT:
+            HAL_PCDEx_PMAConfig(hpcd, 0x01, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x01, maxPacket, PCD_EP_TYPE_INTR);
+            break;
+        case EPINT_IN:
+            HAL_PCDEx_PMAConfig(hpcd, 0x81, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x81, maxPacket, PCD_EP_TYPE_INTR);
+            break;
+        case EPBULK_OUT:
+            HAL_PCDEx_PMAConfig(hpcd, 0x02, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x02, maxPacket, PCD_EP_TYPE_BULK);
+            break;
+        case EPBULK_IN:
+            HAL_PCDEx_PMAConfig(hpcd, 0x82, PCD_SNG_BUF, pmaadress);
+            HAL_PCD_EP_Open(hpcd, 0x82, maxPacket, PCD_EP_TYPE_BULK);
+            break;
+        case EP3OUT:
+            HAL_PCDEx_PMAConfig(hpcd, 0x03, PCD_SNG_BUF, pmaadress);
+            ep_type = (flags & ISOCHRONOUS) ? PCD_EP_TYPE_ISOC : PCD_EP_TYPE_BULK;
+            HAL_PCD_EP_Open(hpcd, 0x03, maxPacket, ep_type);
+            break;
+        case EP3IN:
+            HAL_PCDEx_PMAConfig(hpcd, 0x83, PCD_SNG_BUF, pmaadress);
+            ep_type = (flags & ISOCHRONOUS) ? PCD_EP_TYPE_ISOC : PCD_EP_TYPE_BULK;
+            HAL_PCD_EP_Open(hpcd, 0x83, maxPacket, ep_type);
+            break;
+        default:
+            MBED_ASSERT(0);
+            return false;
+    }
+    return true;
+}
+
+// read setup packet
+void USBHAL::EP0setup(uint8_t *buffer) {
+    memcpy(buffer, hpcd_USB_FS.Setup, 8);
+}
+
+void USBHAL::EP0readStage(void) {
+}
+
+void USBHAL::EP0read(void) {
+    endpointRead(EP0OUT, MAX_PACKET_SIZE_EP0);
+}
+
+class rxTempBufferManager {
+    uint8_t buf0[MAX_PACKET_SIZE_EP0];
+    uint8_t buf1[MAX_PACKET_SIZE_EP1];
+    uint8_t buf2[MAX_PACKET_SIZE_EP2];
+    uint8_t buf3[MAX_PACKET_SIZE_EP3_ISO];
+public:
+    uint8_t* ptr(uint8_t endpoint, int maxPacketSize) {
+        switch(endpoint) {
+            case EP0OUT:
+                MBED_ASSERT(maxPacketSize <= MAX_PACKET_SIZE_EP0);
+                break;
+            case EP1OUT:
+                MBED_ASSERT(maxPacketSize <= MAX_PACKET_SIZE_EP1);
+                break;
+            case EP2OUT:
+                MBED_ASSERT(maxPacketSize <= MAX_PACKET_SIZE_EP2);
+                break;
+            case EP3OUT:
+                MBED_ASSERT(maxPacketSize <= MAX_PACKET_SIZE_EP3_ISO);
+                break;
+        }
+        return ptr(endpoint);
+    }
+    uint8_t* ptr(uint8_t endpoint) {
+        switch(endpoint) {
+            case EP0OUT: return buf0;
+            case EP1OUT: return buf1;
+            case EP2OUT: return buf2;
+            case EP3OUT: return buf3;
+        }
+        MBED_ASSERT(0);
+        return NULL;
+    }
+} rxtmp;
+
+uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
+    const uint8_t endpoint = EP0OUT;
+    uint32_t length = HAL_PCD_EP_GetRxCount(&hpcd_USB_FS, endpoint>>1);
+    memcpy(buffer, rxtmp.ptr(endpoint), length);
+    return length;
+}
+
+void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
+    endpointWrite(EP0IN, buffer, size);
+}
+
+void USBHAL::EP0getWriteResult(void) {
+}
+
+void USBHAL::EP0stall(void) {
+    // If we stall the out endpoint here then we have problems transferring
+    // and setup requests after the (stalled) get device qualifier requests.
+    // TODO: Find out if this is correct behavior, or whether we are doing
+    // something else wrong
+    stallEndpoint(EP0IN);
+//    stallEndpoint(EP0OUT);
+}
+
+EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
+    HAL_PCD_EP_Receive(&hpcd_USB_FS, endpoint>>1, rxtmp.ptr(endpoint, maximumSize), maximumSize);
+    epComplete &= ~(1 << endpoint);
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
+    if (!(epComplete & (1 << endpoint))) {
+        return EP_PENDING;
+    }
+    int len = HAL_PCD_EP_GetRxCount(&hpcd_USB_FS, endpoint>>1);
+    memcpy(buffer, rxtmp.ptr(endpoint), len);
+    *bytesRead = len;
+    return EP_COMPLETED;
+}
+
+EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
+    HAL_PCD_EP_Transmit(&hpcd_USB_FS, endpoint>>1, data, size);
+    epComplete &= ~(1 << endpoint);
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
+    if (epComplete & (1 << endpoint)) {
+        epComplete &= ~(1 << endpoint);
+        return EP_COMPLETED;
+    }
+    return EP_PENDING;
+}
+
+void USBHAL::stallEndpoint(uint8_t endpoint) {
+    PCD_HandleTypeDef *hpcd = &hpcd_USB_FS;
+    switch(endpoint) {
+        case EP0IN:
+            HAL_PCD_EP_SetStall(hpcd, 0x80);
+            break;
+        case EP0OUT:
+            HAL_PCD_EP_SetStall(hpcd, 0x00);
+            break;
+        default:
+            break;
+    }
+}
+
+void USBHAL::unstallEndpoint(uint8_t endpoint) {
+}
+
+bool USBHAL::getEndpointStallState(uint8_t endpoint) {
+    return false;
+}
+
+void USBHAL::remoteWakeup(void) {}
+
+void USBHAL::_usbisr(void) {
+    HAL_PCD_IRQHandler(&hpcd_USB_FS);
+}
+
+void USBHAL::usbisr(void) {}
+
+void USBHAL::SetupStageCallback() {
+    EP0setupCallback();
+}
+
+void USBHAL::DataInStageCallback(uint8_t epnum) {
+    switch(epnum) {
+        case 0: // EP0IN
+            EP0in();
+            break;
+        case 1: 
+            epComplete |= (1<<EP1IN);
+            if (EP1_IN_callback()) {
+                epComplete &= ~(1<<EP1IN);
+            }
+            break;
+        case 2:
+            epComplete |= (1<<EP2IN);
+            if (EP2_IN_callback()) {
+                epComplete &= ~(1<<EP2IN);
+            }
+            break;
+        case 3: 
+            epComplete |= (1<<EP3IN);
+            if (EP3_IN_callback()) {
+                epComplete &= ~(1<<EP3IN);
+            }
+            break;
+        default:
+            MBED_ASSERT(0);
+            break;
+    }
+}
+
+void USBHAL::DataOutStageCallback(uint8_t epnum) {
+    switch(epnum) {
+        case 0: // EP0OUT
+            if ((hpcd_USB_FS.Setup[0]&0x80) == 0x00) { // host to device ?
+                EP0out();
+            }
+            break;
+        case 1:
+            epComplete |= (1<<EP1OUT);
+            if (EP1_OUT_callback()) {
+                epComplete &= ~(1<<EP1OUT);
+            }
+            break;
+        case 2:
+            epComplete |= (1<<EP2OUT);
+            if (EP2_OUT_callback()) {
+                epComplete &= ~(1<<EP2OUT);
+            }
+            break;
+        case 3:
+            epComplete |= (1<<EP3OUT);
+            if (EP3_OUT_callback()) {
+                epComplete &= ~(1<<EP3OUT);
+            }
+            break;
+        default:
+            MBED_ASSERT(0);
+            break;
+    }
+}
+
+void USBHAL::ResetCallback() {
+    PktBufArea.reset();
+    realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
+    realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
+}
+
+void USBHAL::SOFCallback() {
+    SOF(hpcd_USB_FS.Instance->FNR & USB_FNR_FN);
+}
+
+void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd) {
+    reinterpret_cast<USBHAL*>(hpcd->pData)->SetupStageCallback();
+}
+
+void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
+    reinterpret_cast<USBHAL*>(hpcd->pData)->DataInStageCallback(epnum);
+}
+
+void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
+    reinterpret_cast<USBHAL*>(hpcd->pData)->DataOutStageCallback(epnum);
+}
+
+void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd) {
+    reinterpret_cast<USBHAL*>(hpcd->pData)->ResetCallback();
+}
+
+void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
+    reinterpret_cast<USBHAL*>(hpcd->pData)->SOFCallback();
+}
+
+void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd) {
+    if (hpcd->Init.low_power_enable) {
+        SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
+    }
+}