Added USB Host library sources

[fw/stlink] / example / stm32f4 / STM32_USB_HOST_Library / Core / src / usbh_hcs.c

diff --git a/example/stm32f4/STM32_USB_HOST_Library/Core/src/usbh_hcs.c b/example/stm32f4/STM32_USB_HOST_Library/Core/src/usbh_hcs.c
new file mode 100644 (file)
index 0000000..c703d39
--- /dev/null
+++ b/example/stm32f4/STM32_USB_HOST_Library/Core/src/usbh_hcs.c
@@ -0,0 +1,253 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hcs.c
+  * @author  MCD Application Team
+  * @version V2.0.0
+  * @date    22-July-2011
+  * @brief   This file implements functions for opening and closing host channels
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hcs.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_HCS
+  * @brief This file includes opening and closing host channels
+  * @{
+  */ 
+
+/** @defgroup USBH_HCS_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HCS_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_FunctionPrototypes
+  * @{
+  */ 
+static uint16_t USBH_GetFreeChannel (USB_OTG_CORE_HANDLE *pdev);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Functions
+  * @{
+  */ 
+
+
+
+/**
+  * @brief  USBH_Open_Channel
+  *         Open a  pipe
+  * @param  pdev : Selected device
+  * @param  hc_num: Host channel Number
+  * @param  dev_address: USB Device address allocated to attached device
+  * @param  speed : USB device speed (Full/Low)
+  * @param  ep_type: end point type (Bulk/int/ctl)
+  * @param  mps: max pkt size
+  * @retval Status
+  */
+uint8_t USBH_Open_Channel  (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t hc_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps)
+{
+
+  pdev->host.hc[hc_num].ep_num = pdev->host.channel[hc_num]& 0x7F;
+  pdev->host.hc[hc_num].ep_is_in = (pdev->host.channel[hc_num] & 0x80 ) == 0x80;  
+  pdev->host.hc[hc_num].dev_addr = dev_address;  
+  pdev->host.hc[hc_num].ep_type = ep_type;  
+  pdev->host.hc[hc_num].max_packet = mps; 
+  pdev->host.hc[hc_num].speed = speed; 
+  pdev->host.hc[hc_num].toggle_in = 0; 
+  pdev->host.hc[hc_num].toggle_out = 0;   
+  if(speed == HPRT0_PRTSPD_HIGH_SPEED)
+  {
+    pdev->host.hc[hc_num].do_ping = 1;
+  }
+  
+  USB_OTG_HC_Init(pdev, hc_num) ;
+  
+  return HC_OK; 
+
+}
+
+/**
+  * @brief  USBH_Modify_Channel
+  *         Modify a  pipe
+  * @param  pdev : Selected device
+  * @param  hc_num: Host channel Number
+  * @param  dev_address: USB Device address allocated to attached device
+  * @param  speed : USB device speed (Full/Low)
+  * @param  ep_type: end point type (Bulk/int/ctl)
+  * @param  mps: max pkt size
+  * @retval Status
+  */
+uint8_t USBH_Modify_Channel (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t hc_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps)
+{
+  
+  if(dev_address != 0)
+  {
+    pdev->host.hc[hc_num].dev_addr = dev_address;  
+  }
+  
+  if((pdev->host.hc[hc_num].max_packet != mps) && (mps != 0))
+  {
+    pdev->host.hc[hc_num].max_packet = mps; 
+  }
+  
+  if((pdev->host.hc[hc_num].speed != speed ) && (speed != 0 )) 
+  {
+    pdev->host.hc[hc_num].speed = speed; 
+  }
+  
+  USB_OTG_HC_Init(pdev, hc_num);
+  return HC_OK; 
+
+}
+
+/**
+  * @brief  USBH_Alloc_Channel
+  *         Allocate a new channel for the pipe
+  * @param  ep_addr: End point for which the channel to be allocated
+  * @retval hc_num: Host channel number
+  */
+uint8_t USBH_Alloc_Channel  (USB_OTG_CORE_HANDLE *pdev, uint8_t ep_addr)
+{
+  uint16_t hc_num;
+  
+  hc_num =  USBH_GetFreeChannel(pdev);
+
+  if (hc_num != HC_ERROR)
+  {
+       pdev->host.channel[hc_num] = HC_USED | ep_addr;
+  }
+  return hc_num;
+}
+
+/**
+  * @brief  USBH_Free_Pipe
+  *         Free the USB host channel
+  * @param  idx: Channel number to be freed 
+  * @retval Status
+  */
+uint8_t USBH_Free_Channel  (USB_OTG_CORE_HANDLE *pdev, uint8_t idx)
+{
+   if(idx < HC_MAX)
+   {
+        pdev->host.channel[idx] &= HC_USED_MASK;
+   }
+   return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_DeAllocate_AllChannel
+  *         Free all USB host channel
+* @param  pdev : core instance
+  * @retval Status
+  */
+uint8_t USBH_DeAllocate_AllChannel  (USB_OTG_CORE_HANDLE *pdev)
+{
+   uint8_t idx;
+   
+   for (idx = 2; idx < HC_MAX ; idx ++)
+   {
+        pdev->host.channel[idx] = 0;
+   }
+   return USBH_OK;
+}
+
+/**
+  * @brief  USBH_GetFreeChannel
+  *         Get a free channel number for allocation to a device endpoint
+  * @param  None
+  * @retval idx: Free Channel number
+  */
+static uint16_t USBH_GetFreeChannel (USB_OTG_CORE_HANDLE *pdev)
+{
+  uint8_t idx = 0;
+  
+  for (idx = 0 ; idx < HC_MAX ; idx++)
+  {
+       if ((pdev->host.channel[idx] & HC_USED) == 0)
+       {
+          return idx;
+       } 
+  }
+  return HC_ERROR;
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
+
+