src/main/vcpf4/usb_bsp.c

   1 /**
   2   ******************************************************************************
   3   * @file    usb_bsp.c
   4   * @author  MCD Application Team
   5   * @version V1.0.0
   6   * @date    19-September-2011
   7   * @brief   This file is responsible to offer board support package and is
   8   *          configurable by user.
   9   ******************************************************************************
  10   * @attention
  11   *
  12   * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  13   * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  14   * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  15   * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  16   * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  17   * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  18   *
  19   * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  20   ******************************************************************************
  21   */
  22
  23 /* Includes ------------------------------------------------------------------*/
  24
  25 #include "platform.h"
  26
  27 #include "usb_bsp.h"
  28 #include "usbd_conf.h"
  29 #include "stm32f4xx_conf.h"
  30 #include "../drivers/nvic.h"
  31 #include "../drivers/io.h"
  32
  33 void USB_OTG_BSP_ConfigVBUS(USB_OTG_CORE_HANDLE *pdev) {
  34     (void)pdev;
  35 }
  36
  37 void USB_OTG_BSP_DriveVBUS(USB_OTG_CORE_HANDLE *pdev,uint8_t state) {
  38     (void)pdev;
  39     (void)state;
  40 }
  41
  42
  43 /**
  44 * @brief  USB_OTG_BSP_Init
  45 *         Initilizes BSP configurations
  46 * @param  None
  47 * @retval None
  48 */
  49
  50 void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
  51 {
  52     (void)pdev;
  53     GPIO_InitTypeDef GPIO_InitStructure;
  54
  55 #ifndef USE_ULPI_PHY
  56 #ifdef USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
  57     EXTI_InitTypeDef EXTI_InitStructure;
  58     NVIC_InitTypeDef NVIC_InitStructure;
  59 #endif
  60 #endif
  61
  62     NVIC_InitTypeDef NVIC_InitStructure;
  63 #ifdef USE_USB_OTG_HS
  64     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_IRQn;
  65 #else
  66     NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;
  67 #endif
  68     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_USB);
  69     NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_USB);
  70     NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;
  71     NVIC_Init(&NVIC_InitStructure);
  72
  73     RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA , ENABLE);
  74
  75     /* Configure SOF VBUS ID DM DP Pins */
  76     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
  77     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  78     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  79     GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  80     GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
  81     GPIO_Init(GPIOA, &GPIO_InitStructure);
  82
  83     GPIO_PinAFConfig(GPIOA,GPIO_PinSource11,GPIO_AF_OTG1_FS) ;
  84     GPIO_PinAFConfig(GPIOA,GPIO_PinSource12,GPIO_AF_OTG1_FS) ;
  85
  86     RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
  87     RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, ENABLE) ;
  88
  89     EXTI_ClearITPendingBit(EXTI_Line0);
  90 }
  91 /**
  92 * @brief  USB_OTG_BSP_EnableInterrupt
  93 *         Enabele USB Global interrupt
  94 * @param  None
  95 * @retval None
  96 */
  97 void USB_OTG_BSP_EnableInterrupt(USB_OTG_CORE_HANDLE *pdev)
  98 {
  99     (void)pdev;
 100     NVIC_InitTypeDef NVIC_InitStructure;
 101
 102     NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
 103 #ifdef USE_USB_OTG_HS
 104     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_IRQn;
 105 #else
 106     NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;
 107 #endif
 108     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_USB);
 109     NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_USB);
 110     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 111     NVIC_Init(&NVIC_InitStructure);
 112 #ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
 113     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
 114     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_EP1_OUT_IRQn;
 115     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
 116     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
 117     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 118     NVIC_Init(&NVIC_InitStructure);
 119
 120     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
 121     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_EP1_IN_IRQn;
 122     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
 123     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
 124     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 125     NVIC_Init(&NVIC_InitStructure);
 126 #endif
 127 }
 128 /**
 129 * @brief  USB_OTG_BSP_uDelay
 130 *         This function provides delay time in micro sec
 131 * @param  usec : Value of delay required in micro sec
 132 * @retval None
 133 */
 134 #pragma GCC diagnostic push
 135 #pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
 136 void USB_OTG_BSP_uDelay (const uint32_t usec)
 137 {
 138   uint32_t count = 0;
 139   const uint32_t utime = (120 * usec / 7);
 140   do
 141   {
 142     if ( ++count > utime )
 143     {
 144       return ;
 145     }
 146   }
 147   while (1);
 148 }
 149 #pragma GCC diagnostic pop
 150
 151 /**
 152 * @brief  USB_OTG_BSP_mDelay
 153 *          This function provides delay time in milli sec
 154 * @param  msec : Value of delay required in milli sec
 155 * @retval None
 156 */
 157 void USB_OTG_BSP_mDelay (const uint32_t msec)
 158 {
 159   USB_OTG_BSP_uDelay(msec * 1000);
 160 }
 161 /**
 162 * @}
 163 */
 164
 165 /**
 166 * @}
 167 */
 168
 169 /**
 170 * @}
 171 */
 172
 173 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/