Merge pull request #4857 from bcostm/usbhost_disco_l475vg_iot

DISCO_L475VG_IOT01A: Add support of USBHost

features/unsupported/USBHost/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/TARGET_DISCO_L475VG_IOT01A/USBHALHost_DISCO_L475VG_IOT01A.h

@@ -0,0 +1,120 @@
+/* Copyright (c) 2017 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.
+*/
+#ifndef USBHALHOST_DISCO_L475VG_IOT01A
+#define USBHALHOST_DISCO_L475VG_IOT01A
+
+#define USBHAL_IRQn  OTG_FS_IRQn
+
+#define HCCA_SIZE sizeof(HCD_HandleTypeDef)
+#define ED_SIZE  sizeof(HCED)
+#define TD_SIZE  sizeof(HCTD)
+
+#define TOTAL_SIZE (HCCA_SIZE + (MAX_ENDPOINT*ED_SIZE) + (MAX_TD*TD_SIZE))
+
+/* STM device FS have 11 channels (definition is for 60 channels) */
+static volatile  uint8_t usb_buf[TOTAL_SIZE];
+
+typedef struct {
+    /* store the request ongoing on each endpoit  */
+    /*  1st field of structure avoid  giving knowledge of all structure to
+     *  endpoint */
+    volatile uint32_t addr[MAX_ENDPOINT];
+    USBHALHost *inst;
+    void (USBHALHost::*deviceConnected)(int hub, int port, bool lowSpeed, USBHostHub * hub_parent);
+    void (USBHALHost::*deviceDisconnected)(int hub, int port, USBHostHub * hub_parent, volatile uint32_t addr);
+    void (USBHALHost::*transferCompleted)(volatile uint32_t addr);
+} USBHALHost_Private_t;
+
+static gpio_t gpio_powerpin;
+
+#define USB_POWER_OFF 1
+#define USB_POWER_ON  0
+#define USB_POWERPIN_CONFIG {gpio_init_out_ex(&gpio_powerpin, PD_12, USB_POWER_OFF);}
+
+
+void usb_vbus( uint8_t state)
+{
+    if (state == 0) {
+        gpio_write(&gpio_powerpin, USB_POWER_OFF);
+    } else {
+        gpio_write(&gpio_powerpin, USB_POWER_ON);
+    }
+    wait(0.2);
+}
+
+
+USBHALHost::USBHALHost()
+{
+    instHost = this;
+    HCD_HandleTypeDef *hhcd;
+    USBHALHost_Private_t *HALPriv = new(USBHALHost_Private_t);
+
+    memset(HALPriv, 0, sizeof(USBHALHost_Private_t));
+    memInit();
+    memset((void*)usb_hcca, 0, HCCA_SIZE);
+
+    hhcd = (HCD_HandleTypeDef *)usb_hcca;
+    hhcd->Instance = USB_OTG_FS;
+    hhcd->pData = (void*)HALPriv;
+    hhcd->Init.Host_channels = 11;
+
+    /* for now failed with dma */
+    hhcd->Init.dma_enable = 0;
+    hhcd->Init.speed =  HCD_SPEED_FULL;
+    hhcd->Init.phy_itface = HCD_PHY_EMBEDDED;
+    hhcd->Init.use_external_vbus = 1;
+
+    HALPriv->inst = this;
+    HALPriv->deviceConnected = &USBHALHost::deviceConnected;
+    HALPriv->deviceDisconnected = &USBHALHost::deviceDisconnected;
+    HALPriv->transferCompleted = &USBHALHost::transferCompleted;
+
+    for (int i = 0; i < MAX_ENDPOINT; i++) {
+        edBufAlloc[i] = false;
+        HALPriv->addr[i]=(uint32_t)-1;
+    }
+
+    for (int i = 0; i < MAX_TD; i++) {
+        tdBufAlloc[i] = false;
+    }
+
+    __HAL_RCC_PWR_CLK_ENABLE();
+
+#ifdef TARGET_STM32L4
+    HAL_PWREx_EnableVddUSB();
+#endif
+
+    /* Configure USB GPIOs */
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    pin_function(PA_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS)); // DM pin
+    pin_function(PA_12, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS)); // DP pin
+    pin_function(PA_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS)); // VBUS pin
+
+    /* Configure USB POWER pin */
+    USB_POWERPIN_CONFIG;
+
+    /* Enable USB FS Clocks */
+    __HAL_RCC_SYSCFG_CLK_ENABLE();
+    __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+
+    /* Set USBFS Interrupt priority */
+    HAL_NVIC_SetPriority(USBHAL_IRQn, 5, 0);
+    NVIC_SetVector(USBHAL_IRQn, (uint32_t)&_usbisr);
+}
+
+#endif // USBHALHOST_DISCO_L475VG_IOT01A

features/unsupported/USBHost/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/TARGET_DISCO_L475VG_IOT01A/USBHALHost_STM_TARGET.h

@@ -0,0 +1,18 @@
+/* Copyright (c) 2016 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 "USBHALHost_DISCO_L475VG_IOT01A.h"