Diff: targets/TARGET_NUVOTON/TARGET_M451/USBHAL_M453.cpp

Revision:

0:a3ea811f80f2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_M451/USBHAL_M453.cpp	Mon Feb 05 10:22:57 2018 +0000
@@ -0,0 +1,465 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2015-2016 Nuvoton
+ *
+ * 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_M451)
+
+#include "USBHAL.h"
+#include "M451Series.h"
+#include "pinmap.h"
+
+/**
+ * EP: mbed USBD defined endpoint, e.g. EP0OUT/IN, EP1OUT/IN, EP2OUT/IN.
+ * EPX: BSP defined endpoint, e.g. CEP, EPA, EPB, EPC.
+ */
+
+USBHAL * USBHAL::instance;
+
+/* Global variables for Control Pipe */
+extern uint8_t g_usbd_SetupPacket[];        /*!< Setup packet buffer */
+
+static volatile uint32_t s_ep_compl = 0;
+static volatile uint32_t s_ep_buf_ind = 8;
+static volatile uint8_t s_usb_addr = 0;
+static volatile uint8_t s_ep_data_bit[NUMBER_OF_PHYSICAL_ENDPOINTS] = {1};
+static volatile uint8_t s_ep_mxp[NUMBER_OF_PHYSICAL_ENDPOINTS] = {0};
+
+extern volatile uint8_t *g_usbd_CtrlInPointer;
+extern volatile uint32_t g_usbd_CtrlInSize;
+extern volatile uint8_t *g_usbd_CtrlOutPointer;
+extern volatile uint32_t g_usbd_CtrlOutSize;
+extern volatile uint32_t g_usbd_CtrlOutSizeLimit;
+extern volatile uint32_t g_usbd_UsbConfig;
+extern volatile uint32_t g_usbd_CtrlMaxPktSize;
+extern volatile uint32_t g_usbd_UsbAltInterface;
+volatile uint32_t g_usbd_CepTransferLen = 0;
+volatile uint32_t frame_cnt = 0;
+USBHAL::USBHAL(void)
+{
+    SYS_UnlockReg();
+
+    s_ep_buf_ind = 8;
+
+    memset(epCallback, 0x00, sizeof (epCallback));
+    epCallback[0] = &USBHAL::EP1_OUT_callback;
+    epCallback[1] = &USBHAL::EP2_IN_callback;
+    epCallback[2] = &USBHAL::EP3_OUT_callback;
+    epCallback[3] = &USBHAL::EP4_IN_callback;
+    epCallback[4] = &USBHAL::EP5_OUT_callback;
+    epCallback[5] = &USBHAL::EP6_IN_callback;
+
+    instance = this;
+    /* Enable USBD module clock */
+    CLK_EnableModuleClock(USBD_MODULE);
+
+    CLK_SetModuleClock(USBD_MODULE, 0, CLK_CLKDIV0_USB(3));
+
+    /* Enable USB LDO33 */
+    SYS->USBPHY = SYS_USBPHY_LDO33EN_Msk;
+
+    /* Initial USB engine */
+    USBD->ATTR = 0x7D0;
+
+    /* Set SE0 (disconnect) */
+    USBD_SET_SE0();
+
+    //NVIC_SetVector(OTG_FS_IRQn, (uint32_t) &_usbisr);
+    NVIC_SetVector(USBD_IRQn, (uint32_t) &_usbisr);
+    NVIC_EnableIRQ(USBD_IRQn);
+}
+
+USBHAL::~USBHAL(void)
+{
+    NVIC_DisableIRQ(USBD_IRQn);
+    USBD_SET_SE0();
+    USBD_DISABLE_PHY();
+}
+
+void USBHAL::connect(void)
+{
+    USBD->STBUFSEG = 0;
+    frame_cnt = 0;
+    /* EP0 ==> control IN endpoint, address 0 */
+    USBD_CONFIG_EP(EP0, USBD_CFG_CSTALL | USBD_CFG_EPMODE_IN | 0);
+    /* Buffer range for EP0 */
+    USBD_SET_EP_BUF_ADDR(EP0, s_ep_buf_ind);
+
+    /* EP1 ==> control OUT endpoint, address 0 */
+    USBD_CONFIG_EP(EP1, USBD_CFG_CSTALL | USBD_CFG_EPMODE_OUT | 0);
+    /* Buffer range for EP1 */
+    USBD_SET_EP_BUF_ADDR(EP1, s_ep_buf_ind);
+
+    s_ep_buf_ind += MAX_PACKET_SIZE_EP0;
+
+    /* Disable software-disconnect function */
+    USBD_CLR_SE0();
+
+    /* Clear USB-related interrupts before enable interrupt */
+    USBD_CLR_INT_FLAG(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
+
+    /* Enable USB-related interrupts. */
+    USBD_ENABLE_INT(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
+}
+
+void USBHAL::disconnect(void)
+{
+    /* Set SE0 (disconnect) */
+    USBD_SET_SE0();
+}
+
+void USBHAL::configureDevice(void)
+{
+    /**
+     * In USBDevice.cpp > USBDevice::requestSetConfiguration, configureDevice() is called after realiseEndpoint() (in USBCallback_setConfiguration()).
+     * So we have the following USB buffer management policy:
+     *  1. Allocate for CEP on connect().
+     *  2. Allocate for EPX in realiseEndpoint().
+     *  3. Deallocate all except for CEP in unconfigureDevice().
+     */
+}
+
+void USBHAL::unconfigureDevice(void)
+{
+    s_ep_buf_ind = 8;
+}
+
+void USBHAL::setAddress(uint8_t address)
+{
+    // NOTE: Delay address setting; otherwise, USB controller won't ack.
+    s_usb_addr = address;
+}
+
+void USBHAL::remoteWakeup(void)
+{
+#if 0
+    USBD->OPER |= USBD_OPER_RESUMEEN_Msk;
+#endif
+}
+
+bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t options)
+{
+    uint32_t ep_type = 0;
+    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
+    uint32_t ep_logic_index = NU_EP2EPL(endpoint);
+    uint32_t ep_dir = (NU_EP_DIR(endpoint) == NU_EP_DIR_IN) ? USBD_CFG_EPMODE_IN : USBD_CFG_EPMODE_OUT;
+
+    if (ep_logic_index == 3 || ep_logic_index == 4)
+        ep_type = USBD_CFG_TYPE_ISO;
+
+    USBD_CONFIG_EP(ep_hw_index, ep_dir | ep_type | ep_logic_index);
+    /* Buffer range */
+    USBD_SET_EP_BUF_ADDR(ep_hw_index, s_ep_buf_ind);
+
+    if (ep_dir == USBD_CFG_EPMODE_OUT)
+        USBD_SET_PAYLOAD_LEN(ep_hw_index, maxPacket);
+
+    s_ep_mxp[ep_logic_index] = maxPacket;
+
+    s_ep_buf_ind += maxPacket;
+
+    return true;
+}
+
+void USBHAL::EP0setup(uint8_t *buffer)
+{
+    uint32_t sz;
+    endpointReadResult(EP0OUT, buffer, &sz);
+}
+
+void USBHAL::EP0read(void)
+{
+
+
+}
+
+void USBHAL::EP0readStage(void)
+{
+    // N/A
+
+    USBD_PrepareCtrlOut(0,0);
+}
+
+uint32_t USBHAL::EP0getReadResult(uint8_t *buffer)
+{
+    uint32_t i;
+    uint8_t *buf = (uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP1));
+    uint32_t ceprxcnt = USBD_GET_PAYLOAD_LEN(EP1);
+    for (i = 0; i < ceprxcnt; i ++)
+        buffer[i] = buf[i];
+    USBD_SET_PAYLOAD_LEN(EP1, MAX_PACKET_SIZE_EP0);
+    return ceprxcnt;
+}
+
+void USBHAL::EP0write(uint8_t *buffer, uint32_t size)
+{
+    if (buffer && size)
+    {
+        if (s_ep_data_bit[0] & 1)
+            USBD_SET_DATA1(EP0);
+        else
+            USBD_SET_DATA0(EP0);
+        s_ep_data_bit[0]++;
+
+        USBD_MemCopy((uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0), buffer, size);
+        USBD_SET_PAYLOAD_LEN(EP0, size);
+        if (size < MAX_PACKET_SIZE_EP0)
+            s_ep_data_bit[0] = 1;
+
+    }
+    else
+    {
+        if (g_usbd_SetupPacket[0] & 0x80)   //Device to Host
+        {
+            // Status stage
+            //          USBD_PrepareCtrlOut(0,0);
+        } else
+        {
+            USBD_SET_DATA1(EP0);
+            USBD_SET_PAYLOAD_LEN(EP0, 0);
+        }
+    }
+}
+
+void USBHAL::EP0getWriteResult(void)
+{
+    // N/A
+}
+
+void USBHAL::EP0stall(void)
+{
+    stallEndpoint(EP0OUT);
+}
+
+EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize)
+{
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) //spcheng
+{
+    if (endpoint == EP0OUT)
+    {
+        USBD_MemCopy(g_usbd_SetupPacket, (uint8_t *)USBD_BUF_BASE, 8);
+        if (buffer) {
+            USBD_MemCopy(buffer, g_usbd_SetupPacket, 8);
+        }
+        USBD_SET_PAYLOAD_LEN(EP1, MAX_PACKET_SIZE_EP0);
+    }
+    else
+    {
+        uint32_t i;
+        uint8_t *buf = (uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(NU_EP2EPH(endpoint)));
+        uint32_t eprxcnt = USBD_GET_PAYLOAD_LEN(NU_EP2EPH(endpoint));
+        for (i = 0; i < eprxcnt; i ++)
+            buffer[i] = buf[i];
+
+        *bytesRead = eprxcnt;
+
+        USBD_SET_PAYLOAD_LEN(NU_EP2EPH(endpoint),s_ep_mxp[NU_EPH2EPL(NU_EP2EPL(endpoint))]);
+    }
+    return EP_COMPLETED;
+}
+
+
+uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer)
+{
+    return 0;
+}
+
+EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size)
+{
+    uint32_t ep_logic_index = NU_EP2EPL(endpoint);
+    if (ep_logic_index == 0)
+        return EP_INVALID;
+    else
+    {
+        uint8_t *buf;
+        uint32_t i=0;
+        uint32_t ep_hw_index = NU_EP2EPH(endpoint);
+        s_ep_compl |= (1 << ep_logic_index);
+        buf = (uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(ep_hw_index));
+        for (i=0;i<size;i++)
+            buf[i] = data[i];
+
+        /* Set transfer length and trigger IN transfer */
+        USBD_SET_PAYLOAD_LEN(ep_hw_index, size);
+
+    }
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint)
+{
+    if (!(s_ep_compl & (1 << NU_EP2EPL(endpoint))))
+        return EP_COMPLETED;
+    return EP_PENDING;
+}
+
+void USBHAL::stallEndpoint(uint8_t endpoint)
+{
+    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
+    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
+        return;
+
+    USBD_SetStall(NU_EPH2EPL(ep_hw_index));
+
+}
+
+void USBHAL::unstallEndpoint(uint8_t endpoint)
+{
+    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
+    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
+        return;
+    USBD_ClearStall(NU_EPH2EPL(ep_hw_index));
+}
+
+bool USBHAL::getEndpointStallState(uint8_t endpoint)
+{
+    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
+    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
+        return false;
+
+    return USBD_GetStall(NU_EPH2EPL(ep_hw_index)) ? 1 : 0;
+}
+
+void USBHAL::_usbisr(void)
+{
+    MBED_ASSERT(instance);
+    instance->usbisr();
+}
+
+void USBHAL::usbisr(void)
+{
+    uint32_t u32IntSts = USBD_GET_INT_FLAG();
+    uint32_t u32State = USBD_GET_BUS_STATE();
+
+//------------------------------------------------------------------
+    if (u32IntSts & USBD_INTSTS_VBDETIF_Msk)
+    {
+        // Floating detect
+        USBD_CLR_INT_FLAG(USBD_INTSTS_VBDETIF_Msk);
+
+        if (USBD_IS_ATTACHED())
+        {
+            /* USB Plug In */
+            USBD_ENABLE_USB();
+        }
+        else
+        {
+            /* USB Un-plug */
+            USBD_DISABLE_USB();
+        }
+    }
+
+//------------------------------------------------------------------
+    if (u32IntSts & USBD_INTSTS_BUSIF_Msk)
+    {
+        /* Clear event flag */
+        USBD_CLR_INT_FLAG(USBD_INTSTS_BUSIF_Msk);
+
+        if (u32State & USBD_ATTR_USBRST_Msk)
+        {
+            /* Bus reset */
+            USBD_ENABLE_USB();
+            USBD_SwReset();
+        }
+        if (u32State & USBD_ATTR_SUSPEND_Msk)
+        {
+            /* Enable USB but disable PHY */
+            USBD_DISABLE_PHY();
+        }
+        if (u32State & USBD_ATTR_RESUME_Msk)
+        {
+            /* Enable USB and enable PHY */
+            USBD_ENABLE_USB();
+        }
+    }
+
+    if (u32IntSts & USBD_INTSTS_USBIF_Msk)
+    {
+        // USB event
+        if (u32IntSts & USBD_INTSTS_SETUP_Msk)
+        {
+            // Setup packet
+            /* Clear event flag */
+            USBD_CLR_INT_FLAG(USBD_INTSTS_SETUP_Msk);
+
+            /* Clear the data IN/OUT ready flag of control end-points */
+            USBD_STOP_TRANSACTION(EP0);
+            USBD_STOP_TRANSACTION(EP1);
+            EP0setupCallback();
+        }
+
+        // EP events
+        if (u32IntSts & USBD_INTSTS_EP0)
+        {
+            /* Clear event flag */
+            USBD_CLR_INT_FLAG(USBD_INTSTS_EP0);
+            // control IN
+            EP0in();
+
+            // In ACK for Set address
+            if ((g_usbd_SetupPacket[0] == REQ_STANDARD) && (g_usbd_SetupPacket[1] == USBD_SET_ADDRESS))
+            {
+                if ((USBD_GET_ADDR() != s_usb_addr) && (USBD_GET_ADDR() == 0))
+                {
+                    USBD_SET_ADDR(s_usb_addr);
+                }
+            }
+        }
+        if (u32IntSts & USBD_INTSTS_EP1)
+        {
+            /* Clear event flag */
+            USBD_CLR_INT_FLAG(USBD_INTSTS_EP1);
+
+            // control OUT
+            EP0out();
+        }
+
+        uint32_t gintsts_epx = (u32IntSts >> 18) & 0x3F;
+        uint32_t ep_hw_index = 2;
+        while (gintsts_epx) {
+            if (gintsts_epx & 0x01)
+            {
+                uint32_t ep_status = (USBD_GET_EP_FLAG() >> (ep_hw_index * 3 + 8)) & 0x7;
+                /* Clear event flag */
+                USBD_CLR_INT_FLAG(1 << (ep_hw_index + 16));
+
+                if (ep_status == 0x02 || ep_status == 0x06 || (ep_status == 0x07 && NU_EPH2EPL(ep_hw_index) == 3))  //RX
+                {
+                    if (ep_status == 0x07)
+                        SOF(frame_cnt++);
+                    if ((instance->*(epCallback[ep_hw_index-2]))())
+                    {
+
+                    }
+                    USBD_SET_PAYLOAD_LEN(ep_hw_index,s_ep_mxp[NU_EPH2EPL(ep_hw_index)]);
+                }
+                else if (ep_status == 0x00 || ep_status == 0x07)    //TX
+                {
+                    s_ep_compl &= ~(1 << (NU_EPH2EPL(ep_hw_index)));
+                    if ((instance->*(epCallback[ep_hw_index-2]))())
+                    {
+                    }
+                }
+            }
+
+            gintsts_epx = gintsts_epx >> 1;
+            ep_hw_index++;
+        }
+    }
+}
+#endif
+