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