src/platform/STM32/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 LOCAL_UNUSED_FUNCTION static void USB_OTG_BSP_ConfigVBUS(USB_OTG_CORE_HANDLE *pdev)
  34 {
  35     (void)pdev;
  36 }
  37
  38 LOCAL_UNUSED_FUNCTION static void USB_OTG_BSP_DriveVBUS(USB_OTG_CORE_HANDLE *pdev,uint8_t state)
  39 {
  40     (void)pdev;
  41     (void)state;
  42 }
  43
  44 /**
  45 * @brief  USB_OTG_BSP_Init
  46 *         Initilizes BSP configurations
  47 * @param  None
  48 * @retval None
  49 */
  50
  51 void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
  52 {
  53     (void)pdev;
  54     GPIO_InitTypeDef GPIO_InitStructure;
  55
  56 #ifndef USE_ULPI_PHY
  57 #ifdef USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
  58     EXTI_InitTypeDef EXTI_InitStructure;
  59     NVIC_InitTypeDef NVIC_InitStructure;
  60 #endif
  61 #endif
  62
  63     NVIC_InitTypeDef NVIC_InitStructure;
  64 #ifdef USE_USB_OTG_HS
  65     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_IRQn;
  66 #else
  67     NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;
  68 #endif
  69     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_USB);
  70     NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_USB);
  71     NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;
  72     NVIC_Init(&NVIC_InitStructure);
  73
  74     RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA , ENABLE);
  75
  76     /* Configure SOF VBUS ID DM DP Pins */
  77     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
  78     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  79     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  80     GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  81     GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
  82     GPIO_Init(GPIOA, &GPIO_InitStructure);
  83
  84     GPIO_PinAFConfig(GPIOA,GPIO_PinSource11,GPIO_AF_OTG1_FS) ;
  85     GPIO_PinAFConfig(GPIOA,GPIO_PinSource12,GPIO_AF_OTG1_FS) ;
  86
  87     RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
  88     RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, ENABLE) ;
  89
  90     EXTI_ClearITPendingBit(EXTI_Line0);
  91 }
  92 /**
  93 * @brief  USB_OTG_BSP_EnableInterrupt
  94 *         Enabele USB Global interrupt
  95 * @param  None
  96 * @retval None
  97 */
  98 void USB_OTG_BSP_EnableInterrupt(USB_OTG_CORE_HANDLE *pdev)
  99 {
 100     (void)pdev;
 101     NVIC_InitTypeDef NVIC_InitStructure;
 102
 103     NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
 104 #ifdef USE_USB_OTG_HS
 105     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_IRQn;
 106 #else
 107     NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;
 108 #endif
 109     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_USB);
 110     NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_USB);
 111     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 112     NVIC_Init(&NVIC_InitStructure);
 113 #ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
 114     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
 115     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_EP1_OUT_IRQn;
 116     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
 117     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
 118     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 119     NVIC_Init(&NVIC_InitStructure);
 120
 121     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
 122     NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_EP1_IN_IRQn;
 123     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
 124     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
 125     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 126     NVIC_Init(&NVIC_InitStructure);
 127 #endif
 128 }
 129 /**
 130 * @brief  USB_OTG_BSP_uDelay
 131 *         This function provides delay time in micro sec
 132 * @param  usec : Value of delay required in micro sec
 133 * @retval None
 134 */
 135 #pragma GCC diagnostic push
 136 #pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
 137 void USB_OTG_BSP_uDelay (const uint32_t usec)
 138 {
 139   uint32_t count = 0;
 140   const uint32_t utime = (120 * usec / 7);
 141   do
 142   {
 143     if ( ++count > utime )
 144     {
 145       return ;
 146     }
 147   }
 148   while (1);
 149 }
 150 #pragma GCC diagnostic pop
 151
 152 /**
 153 * @brief  USB_OTG_BSP_mDelay
 154 *          This function provides delay time in milli sec
 155 * @param  msec : Value of delay required in milli sec
 156 * @retval None
 157 */
 158 void USB_OTG_BSP_mDelay (const uint32_t msec)
 159 {
 160   USB_OTG_BSP_uDelay(msec * 1000);
 161 }
 162 /**
 163 * @}
 164 */
 165
 166 /**
 167 * @}
 168 */
 169
 170 /**
 171 * @}
 172 */
 173
 174 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/