Revision 71:4e9a69384cac, committed 2017-01-08

Comitter:

larsgk

Date:

Sun Jan 08 12:39:00 2017 +0000

Parent:

70:e410de636542

Child:

72:1d8a6665d607

Commit message:

Added FRDM board support

Changed in this revision

--- a/USBDevice/USBEndpoints.h	Fri Nov 25 18:31:08 2016 +0000
+++ b/USBDevice/USBEndpoints.h	Sun Jan 08 12:39:00 2017 +0000
@@ -39,6 +39,8 @@
 /* Include configuration for specific target */
 #if defined(TARGET_STM32F1)
 #include "USBEndpoints_STM32F1.h"
+#elif defined(TARGET_KL25Z) | defined(TARGET_KL26Z) | defined(TARGET_KL27Z) | defined(TARGET_KL43Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D50M) | defined(TARGET_K64F) | defined(TARGET_K22F) | defined(TARGET_TEENSY3_1)
+#include "USBEndpoints_KL25Z.h"
 #else
 #error "Unknown target type"
 #endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBEndpoints_KL25Z.h	Sun Jan 08 12:39:00 2017 +0000
@@ -0,0 +1,99 @@
+/* Copyright (c) 2010-2011 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.
+*/
+
+#define NUMBER_OF_LOGICAL_ENDPOINTS (16)
+#define NUMBER_OF_PHYSICAL_ENDPOINTS (NUMBER_OF_LOGICAL_ENDPOINTS * 2)
+
+/* Define physical endpoint numbers */
+
+/*      Endpoint    No.   */
+/*      ----------------  */
+#define EP0OUT      (0)
+#define EP0IN       (1)
+#define EP1OUT      (2)
+#define EP1IN       (3)
+#define EP2OUT      (4)
+#define EP2IN       (5)
+#define EP3OUT      (6)
+#define EP3IN       (7)
+#define EP4OUT      (8)
+#define EP4IN       (9)
+#define EP5OUT      (10)
+#define EP5IN       (11)
+#define EP6OUT      (12)
+#define EP6IN       (13)
+#define EP7OUT      (14)
+#define EP7IN       (15)
+#define EP8OUT      (16)
+#define EP8IN       (17)
+#define EP9OUT      (18)
+#define EP9IN       (19)
+#define EP10OUT     (20)
+#define EP10IN      (21)
+#define EP11OUT     (22)
+#define EP11IN      (23)
+#define EP12OUT     (24)
+#define EP12IN      (25)
+#define EP13OUT     (26)
+#define EP13IN      (27)
+#define EP14OUT     (28)
+#define EP14IN      (29)
+#define EP15OUT     (30)
+#define EP15IN      (31)
+
+/* Maximum Packet sizes */
+
+#define MAX_PACKET_SIZE_EP0  (64)
+#define MAX_PACKET_SIZE_EP1  (64)
+#define MAX_PACKET_SIZE_EP2  (64)
+#define MAX_PACKET_SIZE_EP3  (1023)
+#define MAX_PACKET_SIZE_EP4  (64)
+#define MAX_PACKET_SIZE_EP5  (64)
+#define MAX_PACKET_SIZE_EP6  (64)
+#define MAX_PACKET_SIZE_EP7  (64)
+#define MAX_PACKET_SIZE_EP8  (64)
+#define MAX_PACKET_SIZE_EP9  (64)
+#define MAX_PACKET_SIZE_EP10 (64)
+#define MAX_PACKET_SIZE_EP11 (64)
+#define MAX_PACKET_SIZE_EP12 (64)
+#define MAX_PACKET_SIZE_EP13 (64)
+#define MAX_PACKET_SIZE_EP14 (64)
+#define MAX_PACKET_SIZE_EP15 (64)
+
+/* Generic endpoints - intended to be portable accross devices */
+/* and be suitable for simple USB devices. */
+
+/* Bulk endpoints */
+#define EPBULK_OUT  (EP2OUT)
+#define EPBULK_IN   (EP2IN)
+#define EPBULK_OUT_callback   EP2_OUT_callback
+#define EPBULK_IN_callback    EP2_IN_callback
+/* Interrupt endpoints */
+#define EPINT_OUT   (EP1OUT)
+#define EPINT_IN    (EP1IN)
+#define EPINT_OUT_callback    EP1_OUT_callback
+#define EPINT_IN_callback     EP1_IN_callback
+/* Isochronous endpoints */
+#define EPISO_OUT   (EP3OUT)
+#define EPISO_IN    (EP3IN)
+#define EPISO_OUT_callback    EP3_OUT_callback
+#define EPISO_IN_callback     EP3_IN_callback
+
+#define MAX_PACKET_SIZE_EPBULK  (MAX_PACKET_SIZE_EP2)
+#define MAX_PACKET_SIZE_EPINT   (MAX_PACKET_SIZE_EP1)
+#define MAX_PACKET_SIZE_EPISO   (MAX_PACKET_SIZE_EP3)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBHAL_KL25Z.cpp	Sun Jan 08 12:39:00 2017 +0000
@@ -0,0 +1,552 @@
+/* Copyright (c) 2010-2011 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.
+*/
+
+#if defined(TARGET_KL25Z) | defined(TARGET_KL43Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D50M) | defined(TARGET_K64F) | defined(TARGET_K22F) | defined(TARGET_TEENSY3_1)
+
+#include "USBHAL.h"
+
+USBHAL * USBHAL::instance;
+
+static volatile int epComplete = 0;
+
+// Convert physical endpoint number to register bit
+#define EP(endpoint) (1<<(endpoint))
+
+// Convert physical to logical
+#define PHY_TO_LOG(endpoint)    ((endpoint)>>1)
+
+// Get endpoint direction
+#define IN_EP(endpoint)     ((endpoint) & 1U ? true : false)
+#define OUT_EP(endpoint)    ((endpoint) & 1U ? false : true)
+
+#define BD_OWN_MASK        (1<<7)
+#define BD_DATA01_MASK     (1<<6)
+#define BD_KEEP_MASK       (1<<5)
+#define BD_NINC_MASK       (1<<4)
+#define BD_DTS_MASK        (1<<3)
+#define BD_STALL_MASK      (1<<2)
+
+#define TX    1
+#define RX    0
+#define ODD   0
+#define EVEN  1
+// this macro waits a physical endpoint number
+#define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 *  odd)))
+
+#define SETUP_TOKEN    0x0D
+#define IN_TOKEN       0x09
+#define OUT_TOKEN      0x01
+#define TOK_PID(idx)   ((bdt[idx].info >> 2) & 0x0F)
+
+// for each endpt: 8 bytes
+typedef struct BDT {
+    uint8_t   info;       // BD[0:7]
+    uint8_t   dummy;      // RSVD: BD[8:15]
+    uint16_t  byte_count; // BD[16:32]
+    uint32_t  address;    // Addr
+} BDT;
+
+
+// there are:
+//    * 16 bidirectionnal endpt -> 32 physical endpt
+//    * as there are ODD and EVEN buffer -> 32*2 bdt
+__attribute__((__aligned__(512))) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2];
+uint8_t * endpoint_buffer[(NUMBER_OF_PHYSICAL_ENDPOINTS - 2) * 2];
+uint8_t * endpoint_buffer_iso[2*2];
+
+static uint8_t set_addr = 0;
+static uint8_t addr = 0;
+
+static uint32_t Data1  = 0x55555555;
+
+static uint32_t frameNumber() {
+    return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF);
+}
+
+uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
+    return 0;
+}
+
+USBHAL::USBHAL(void) {
+    // Disable IRQ
+    NVIC_DisableIRQ(USB0_IRQn);
+
+#if defined(TARGET_K64F)
+    MPU->CESR=0;
+#endif
+    // fill in callback array
+    epCallback[0] = &USBHAL::EP1_OUT_callback;
+    epCallback[1] = &USBHAL::EP1_IN_callback;
+    epCallback[2] = &USBHAL::EP2_OUT_callback;
+    epCallback[3] = &USBHAL::EP2_IN_callback;
+    epCallback[4] = &USBHAL::EP3_OUT_callback;
+    epCallback[5] = &USBHAL::EP3_IN_callback;
+    epCallback[6] = &USBHAL::EP4_OUT_callback;
+    epCallback[7] = &USBHAL::EP4_IN_callback;
+    epCallback[8] = &USBHAL::EP5_OUT_callback;
+    epCallback[9] = &USBHAL::EP5_IN_callback;
+    epCallback[10] = &USBHAL::EP6_OUT_callback;
+    epCallback[11] = &USBHAL::EP6_IN_callback;
+    epCallback[12] = &USBHAL::EP7_OUT_callback;
+    epCallback[13] = &USBHAL::EP7_IN_callback;
+    epCallback[14] = &USBHAL::EP8_OUT_callback;
+    epCallback[15] = &USBHAL::EP8_IN_callback;
+    epCallback[16] = &USBHAL::EP9_OUT_callback;
+    epCallback[17] = &USBHAL::EP9_IN_callback;
+    epCallback[18] = &USBHAL::EP10_OUT_callback;
+    epCallback[19] = &USBHAL::EP10_IN_callback;
+    epCallback[20] = &USBHAL::EP11_OUT_callback;
+    epCallback[21] = &USBHAL::EP11_IN_callback;
+    epCallback[22] = &USBHAL::EP12_OUT_callback;
+    epCallback[23] = &USBHAL::EP12_IN_callback;
+    epCallback[24] = &USBHAL::EP13_OUT_callback;
+    epCallback[25] = &USBHAL::EP13_IN_callback;
+    epCallback[26] = &USBHAL::EP14_OUT_callback;
+    epCallback[27] = &USBHAL::EP14_IN_callback;
+    epCallback[28] = &USBHAL::EP15_OUT_callback;
+    epCallback[29] = &USBHAL::EP15_IN_callback;
+
+#if defined(TARGET_KL43Z)
+    // enable USBFS clock
+    SIM->SCGC4 |= SIM_SCGC4_USBFS_MASK;
+
+    // enable the IRC48M clock
+    USB0->CLK_RECOVER_IRC_EN |= USB_CLK_RECOVER_IRC_EN_IRC_EN_MASK;
+
+    // enable the USB clock recovery tuning
+    USB0->CLK_RECOVER_CTRL |= USB_CLK_RECOVER_CTRL_CLOCK_RECOVER_EN_MASK;
+
+    // choose usb src clock
+    SIM->SOPT2 |= SIM_SOPT2_USBSRC_MASK;
+#else
+    // choose usb src as PLL
+    SIM->SOPT2 &= ~SIM_SOPT2_PLLFLLSEL_MASK;
+    SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | (1 << SIM_SOPT2_PLLFLLSEL_SHIFT));
+
+    // enable OTG clock
+    SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK;
+#endif
+
+    // Attach IRQ
+    instance = this;
+    NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr);
+    NVIC_EnableIRQ(USB0_IRQn);
+
+    // USB Module Configuration
+    // Reset USB Module
+    USB0->USBTRC0 |= USB_USBTRC0_USBRESET_MASK;
+    while(USB0->USBTRC0 & USB_USBTRC0_USBRESET_MASK);
+
+    // Set BDT Base Register
+    USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8);
+    USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16);
+    USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24);
+
+    // Clear interrupt flag
+    USB0->ISTAT = 0xff;
+
+    // USB Interrupt Enablers
+    USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK |
+                   USB_INTEN_SOFTOKEN_MASK |
+                   USB_INTEN_ERROREN_MASK  |
+                   USB_INTEN_USBRSTEN_MASK;
+
+    // Disable weak pull downs
+    USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK);
+
+    USB0->USBTRC0 |= 0x40;
+}
+
+USBHAL::~USBHAL(void) { }
+
+void USBHAL::connect(void) {
+    // enable USB
+    USB0->CTL |= USB_CTL_USBENSOFEN_MASK;
+    // Pull up enable
+    USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK;
+}
+
+void USBHAL::disconnect(void) {
+    // disable USB
+    USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK;
+    // Pull up disable
+    USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK;
+
+    //Free buffers if required:
+    for (int i = 0; i<(NUMBER_OF_PHYSICAL_ENDPOINTS - 2) * 2; i++) {
+        free(endpoint_buffer[i]);
+        endpoint_buffer[i] = NULL;
+    }
+    free(endpoint_buffer_iso[2]);
+    endpoint_buffer_iso[2] = NULL;
+    free(endpoint_buffer_iso[0]);
+    endpoint_buffer_iso[0] = NULL;
+}
+
+void USBHAL::configureDevice(void) {
+    // not needed
+}
+
+void USBHAL::unconfigureDevice(void) {
+    // not needed
+}
+
+void USBHAL::setAddress(uint8_t address) {
+    // we don't set the address now otherwise the usb controller does not ack
+    // we set a flag instead
+    // see usbisr when an IN token is received
+    set_addr = 1;
+    addr = address;
+}
+
+bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
+    uint32_t handshake_flag = 0;
+    uint8_t * buf;
+
+    if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
+        return false;
+    }
+
+    uint32_t log_endpoint = PHY_TO_LOG(endpoint);
+
+    if ((flags & ISOCHRONOUS) == 0) {
+        handshake_flag = USB_ENDPT_EPHSHK_MASK;
+        if (IN_EP(endpoint)) {
+            if (endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)] == NULL)
+                endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)] = (uint8_t *) malloc (64);
+            buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)][0];
+        } else {
+            if (endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)] == NULL)
+                endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)] = (uint8_t *) malloc (64);
+            buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)][0];
+        }
+    } else {
+        if (IN_EP(endpoint)) {
+            if (endpoint_buffer_iso[2] == NULL)
+                endpoint_buffer_iso[2] = (uint8_t *) malloc (1023);
+            buf = &endpoint_buffer_iso[2][0];
+        } else {
+            if (endpoint_buffer_iso[0] == NULL)
+                endpoint_buffer_iso[0] = (uint8_t *) malloc (1023);
+            buf = &endpoint_buffer_iso[0][0];
+        }
+    }
+
+    // IN endpt -> device to host (TX)
+    if (IN_EP(endpoint)) {
+        USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag |        // ep handshaking (not if iso endpoint)
+                                              USB_ENDPT_EPTXEN_MASK;  // en TX (IN) tran
+        bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf;
+        bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0;
+    }
+    // OUT endpt -> host to device (RX)
+    else {
+        USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag |        // ep handshaking (not if iso endpoint)
+                                              USB_ENDPT_EPRXEN_MASK;  // en RX (OUT) tran.
+        bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket;
+        bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address    = (uint32_t) buf;
+        bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info       = BD_OWN_MASK | BD_DTS_MASK;
+        bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info       = 0;
+    }
+
+    Data1 |= (1 << endpoint);
+
+    return true;
+}
+
+// read setup packet
+void USBHAL::EP0setup(uint8_t *buffer) {
+    uint32_t sz;
+    endpointReadResult(EP0OUT, buffer, &sz);
+}
+
+void USBHAL::EP0readStage(void) {
+    Data1 &= ~1UL;  // set DATA0
+    bdt[0].info = (BD_DTS_MASK | BD_OWN_MASK);
+}
+
+void USBHAL::EP0read(void) {
+    uint32_t idx = EP_BDT_IDX(PHY_TO_LOG(EP0OUT), RX, 0);
+    bdt[idx].byte_count = MAX_PACKET_SIZE_EP0;
+}
+
+uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
+    uint32_t sz;
+    endpointReadResult(EP0OUT, buffer, &sz);
+    return sz;
+}
+
+void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
+    endpointWrite(EP0IN, buffer, size);
+}
+
+void USBHAL::EP0getWriteResult(void) {
+}
+
+void USBHAL::EP0stall(void) {
+    stallEndpoint(EP0OUT);
+}
+
+EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
+    endpoint = PHY_TO_LOG(endpoint);
+    uint32_t idx = EP_BDT_IDX(endpoint, RX, 0);
+    bdt[idx].byte_count = maximumSize;
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
+    uint32_t n, sz, idx, setup = 0;
+    uint8_t not_iso;
+    uint8_t * ep_buf;
+
+    uint32_t log_endpoint = PHY_TO_LOG(endpoint);
+
+    if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
+        return EP_INVALID;
+    }
+
+    // if read on a IN endpoint -> error
+    if (IN_EP(endpoint)) {
+        return EP_INVALID;
+    }
+
+    idx = EP_BDT_IDX(log_endpoint, RX, 0);
+    sz  = bdt[idx].byte_count;
+    not_iso = USB0->ENDPOINT[log_endpoint].ENDPT & USB_ENDPT_EPHSHK_MASK;
+
+    //for isochronous endpoint, we don't wait an interrupt
+    if ((log_endpoint != 0) && not_iso && !(epComplete & EP(endpoint))) {
+        return EP_PENDING;
+    }
+
+    if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) {
+        setup = 1;
+    }
+
+    // non iso endpoint
+    if (not_iso) {
+        ep_buf = endpoint_buffer[idx];
+    } else {
+        ep_buf = endpoint_buffer_iso[0];
+    }
+
+    for (n = 0; n < sz; n++) {
+        buffer[n] = ep_buf[n];
+    }
+
+    if (((Data1 >> endpoint) & 1) == ((bdt[idx].info >> 6) & 1)) {
+        if (setup && (buffer[6] == 0))  // if no setup data stage,
+            Data1 &= ~1UL;              // set DATA0
+        else
+            Data1 ^= (1 << endpoint);
+    }
+
+    if (((Data1 >> endpoint) & 1)) {
+        bdt[idx].info = BD_DTS_MASK | BD_DATA01_MASK | BD_OWN_MASK;
+    }
+    else {
+        bdt[idx].info = BD_DTS_MASK | BD_OWN_MASK;
+    }
+
+    USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK;
+    *bytesRead = sz;
+
+    epComplete &= ~EP(endpoint);
+    return EP_COMPLETED;
+}
+
+EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
+    uint32_t idx, n;
+    uint8_t * ep_buf;
+
+    if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
+        return EP_INVALID;
+    }
+
+    // if write on a OUT endpoint -> error
+    if (OUT_EP(endpoint)) {
+        return EP_INVALID;
+    }
+
+    idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0);
+    bdt[idx].byte_count = size;
+
+
+    // non iso endpoint
+    if (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPHSHK_MASK) {
+        ep_buf = endpoint_buffer[idx];
+    } else {
+        ep_buf = endpoint_buffer_iso[2];
+    }
+
+    for (n = 0; n < size; n++) {
+        ep_buf[n] = data[n];
+    }
+
+    if ((Data1 >> endpoint) & 1) {
+        bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK;
+    } else {
+        bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK;
+    }
+
+    Data1 ^= (1 << endpoint);
+
+    return EP_PENDING;
+}
+
+EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
+    if (epComplete & EP(endpoint)) {
+        epComplete &= ~EP(endpoint);
+        return EP_COMPLETED;
+    }
+
+    return EP_PENDING;
+}
+
+void USBHAL::stallEndpoint(uint8_t endpoint) {
+    USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK;
+}
+
+void USBHAL::unstallEndpoint(uint8_t endpoint) {
+    USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
+}
+
+bool USBHAL::getEndpointStallState(uint8_t endpoint) {
+    uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK);
+    return (stall) ? true : false;
+}
+
+void USBHAL::remoteWakeup(void) {
+    // [TODO]
+}
+
+
+void USBHAL::_usbisr(void) {
+    instance->usbisr();
+}
+
+
+void USBHAL::usbisr(void) {
+    uint8_t i;
+    uint8_t istat = USB0->ISTAT;
+
+    // reset interrupt
+    if (istat & USB_ISTAT_USBRST_MASK) {
+        // disable all endpt
+        for(i = 0; i < 16; i++) {
+            USB0->ENDPOINT[i].ENDPT = 0x00;
+        }
+
+        // enable control endpoint
+        realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
+        realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
+
+        Data1 = 0x55555555;
+        USB0->CTL |=  USB_CTL_ODDRST_MASK;
+
+        USB0->ISTAT   =  0xFF;  // clear all interrupt status flags
+        USB0->ERRSTAT =  0xFF;  // clear all error flags
+        USB0->ERREN   =  0xFF;  // enable error interrupt sources
+        USB0->ADDR    =  0x00;  // set default address
+
+        return;
+    }
+
+    // resume interrupt
+    if (istat & USB_ISTAT_RESUME_MASK) {
+        USB0->ISTAT = USB_ISTAT_RESUME_MASK;
+    }
+
+    // SOF interrupt
+    if (istat & USB_ISTAT_SOFTOK_MASK) {
+        USB0->ISTAT = USB_ISTAT_SOFTOK_MASK;
+        // SOF event, read frame number
+        SOF(frameNumber());
+    }
+
+    // stall interrupt
+    if (istat & 1<<7) {
+        if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK)
+            USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
+        USB0->ISTAT |= USB_ISTAT_STALL_MASK;
+    }
+
+    // token interrupt
+    if (istat & 1<<3) {
+        uint32_t num  = (USB0->STAT >> 4) & 0x0F;
+        uint32_t dir  = (USB0->STAT >> 3) & 0x01;
+        uint32_t ev_odd = (USB0->STAT >> 2) & 0x01;
+        int endpoint = (num << 1) | dir;
+
+        // setup packet
+        if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) {
+            Data1 &= ~0x02;
+            bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK;
+            bdt[EP_BDT_IDX(0, TX, ODD)].info  &= ~BD_OWN_MASK;
+
+            // EP0 SETUP event (SETUP data received)
+            EP0setupCallback();
+
+        } else {
+            // OUT packet
+            if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) {
+                if (num == 0)
+                    EP0out();
+                else {
+                    epComplete |= EP(endpoint);
+                    if ((instance->*(epCallback[endpoint - 2]))()) {
+                        epComplete &= ~EP(endpoint);
+                    }
+                }
+            }
+
+            // IN packet
+            if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) {
+                if (num == 0) {
+                    EP0in();
+                    if (set_addr == 1) {
+                        USB0->ADDR = addr & 0x7F;
+                        set_addr = 0;
+                    }
+                }
+                else {
+                    epComplete |= EP(endpoint);
+                    if ((instance->*(epCallback[endpoint - 2]))()) {
+                        epComplete &= ~EP(endpoint);
+                    }
+                }
+            }
+        }
+
+        USB0->ISTAT = USB_ISTAT_TOKDNE_MASK;
+    }
+
+    // sleep interrupt
+    if (istat & 1<<4) {
+        USB0->ISTAT |= USB_ISTAT_SLEEP_MASK;
+    }
+
+    // error interrupt
+    if (istat & USB_ISTAT_ERROR_MASK) {
+        USB0->ERRSTAT = 0xFF;
+        USB0->ISTAT |= USB_ISTAT_ERROR_MASK;
+    }
+}
+
+
+#endif

--- a/USBDevice/USBHAL_STM32F1.cpp	Fri Nov 25 18:31:08 2016 +0000
+++ b/USBDevice/USBHAL_STM32F1.cpp	Sun Jan 08 12:39:00 2017 +0000
@@ -18,6 +18,8 @@
 
 #include "USBDevice.h"
 
+#if defined(TARGET_STM32F1) | defined(TARGET_STM32F4)
+
 #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;
@@ -379,3 +381,5 @@
         SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
     }
 }
+
+#endif