USB BARCODE READER

Fork of USBHOST by ST

Revision:
1:ab240722d7ef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHost/TARGET_STM/USBHALHost_DISCOF429ZI.h	Wed Feb 15 10:49:44 2017 +0100
@@ -0,0 +1,112 @@
+/* mbed USBHost Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * 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.
+ */
+#ifndef USBHALHOST_DISCOF429ZI
+#define USBHALHOST_DISCOF429ZI
+
+#define USBHAL_IRQn  OTG_HS_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;
+/*  CONFIGURATION for USB_VBUS  
+ *  on 64 bits board PC_0 is used  (0  VBUS on,  1 VBUS off)
+ *  on 144 pins board PG_6 is used ( 1 VBUS on, 0 VBUS on)
+ */
+static gpio_t gpio_vbus;
+
+#define  VBUS_OFF 1
+#define  VBUS_ON 0
+#define USB_VBUS_CONFIG \
+    do {__HAL_RCC_GPIOC_CLK_ENABLE();\
+		gpio_init_out_ex(&gpio_vbus, PC_4, VBUS_OFF);\
+	}while(0);
+
+
+void  usb_vbus( uint8_t state)
+{
+    if(state == 0)
+    {
+        gpio_write(&gpio_vbus, VBUS_OFF);
+    }
+    else
+    {
+        gpio_write(&gpio_vbus, VBUS_ON);
+    }
+    wait(0.2);
+}
+
+
+USBHALHost::USBHALHost() {
+    gpio_t  pin_vbus;
+    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_HS;
+    hhcd->pData = (void*)HALPriv;
+    hhcd->Init.Host_channels = 11;
+    /*   for now failed with dma */
+    hhcd->Init.dma_enable = 0;
+    hhcd->Init.speed = HCD_SPEED_HIGH;
+    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;
+    }
+    /* Configure USB HS GPIOs */
+    __HAL_RCC_GPIOB_CLK_ENABLE();
+
+    /*USB DM and DP */
+    pin_function(PB_14, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_OTG_HS_FS));
+    pin_function(PB_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_OTG_HS_FS));
+    /* Configure  VBUS Pin */
+    gpio_init_in(&pin_vbus, PB_13);
+    /* Configure POWER_SWITCH IO pin */
+    USB_VBUS_CONFIG;
+    /* Enable USB HS Clocks */
+    __HAL_RCC_USB_OTG_HS_CLK_ENABLE();
+
+    /* Set USBFS Interrupt priority */
+    HAL_NVIC_SetPriority(USBHAL_IRQn, 5, 0);
+    NVIC_SetVector(USBHAL_IRQn, (uint32_t)&_usbisr);
+}
+#endif