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| author | Damien <damien.p.george@gmail.com> | 2013-10-13 00:42:20 +0100 |
|---|---|---|
| committer | Damien <damien.p.george@gmail.com> | 2013-10-13 00:42:20 +0100 |
| commit | ed65605edc5c1376947a34723b9c750400b5a028 (patch) | |
| tree | d0317e867c4286ec7c889fc9ed18591a1d9990dd /stm/lib/usb_hcd.c | |
| parent | 3ef4abb446dfcbdbc426a0921a33e0883607e677 (diff) | |
| download | micropython-ed65605edc5c1376947a34723b9c750400b5a028.tar.gz micropython-ed65605edc5c1376947a34723b9c750400b5a028.zip | |
Inital commit of stm32f4xx framework.
Diffstat (limited to 'stm/lib/usb_hcd.c')
| -rw-r--r-- | stm/lib/usb_hcd.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/stm/lib/usb_hcd.c b/stm/lib/usb_hcd.c new file mode 100644 index 0000000000..56e2244181 --- /dev/null +++ b/stm/lib/usb_hcd.c @@ -0,0 +1,262 @@ +/**
+ ******************************************************************************
+ * @file usb_hcd.c
+ * @author MCD Application Team
+ * @version V2.1.0
+ * @date 19-March-2012
+ * @brief Host Interface Layer
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
+ *
+ * Licensed under MCD-ST Liberty SW License Agreement V2, (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.st.com/software_license_agreement_liberty_v2
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usb_hcd.h"
+#include "usb_conf.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+ * @{
+ */
+
+/** @defgroup USB_HCD
+ * @brief This file is the interface between EFSL ans Host mass-storage class
+ * @{
+ */
+
+
+/** @defgroup USB_HCD_Private_Defines
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USB_HCD_Private_TypesDefinitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+
+/** @defgroup USB_HCD_Private_Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USB_HCD_Private_Variables
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USB_HCD_Private_FunctionPrototypes
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USB_HCD_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief HCD_Init
+ * Initialize the HOST portion of the driver.
+ * @param pdev: Selected device
+ * @param base_address: OTG base address
+ * @retval Status
+ */
+uint32_t HCD_Init(USB_OTG_CORE_HANDLE *pdev ,
+ USB_OTG_CORE_ID_TypeDef coreID)
+{
+ uint8_t i = 0;
+ pdev->host.ConnSts = 0;
+
+ for (i= 0; i< USB_OTG_MAX_TX_FIFOS; i++)
+ {
+ pdev->host.ErrCnt[i] = 0;
+ pdev->host.XferCnt[i] = 0;
+ pdev->host.HC_Status[i] = HC_IDLE;
+ }
+ pdev->host.hc[0].max_packet = 8;
+
+ USB_OTG_SelectCore(pdev, coreID);
+#ifndef DUAL_ROLE_MODE_ENABLED
+ USB_OTG_DisableGlobalInt(pdev);
+ USB_OTG_CoreInit(pdev);
+
+ /* Force Host Mode*/
+ USB_OTG_SetCurrentMode(pdev , HOST_MODE);
+ USB_OTG_CoreInitHost(pdev);
+ USB_OTG_EnableGlobalInt(pdev);
+#endif
+
+ return 0;
+}
+
+
+/**
+ * @brief HCD_GetCurrentSpeed
+ * Get Current device Speed.
+ * @param pdev : Selected device
+ * @retval Status
+ */
+
+uint32_t HCD_GetCurrentSpeed (USB_OTG_CORE_HANDLE *pdev)
+{
+ USB_OTG_HPRT0_TypeDef HPRT0;
+ HPRT0.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
+
+ return HPRT0.b.prtspd;
+}
+
+/**
+ * @brief HCD_ResetPort
+ * Issues the reset command to device
+ * @param pdev : Selected device
+ * @retval Status
+ */
+uint32_t HCD_ResetPort(USB_OTG_CORE_HANDLE *pdev)
+{
+ /*
+ Before starting to drive a USB reset, the application waits for the OTG
+ interrupt triggered by the debounce done bit (DBCDNE bit in OTG_FS_GOTGINT),
+ which indicates that the bus is stable again after the electrical debounce
+ caused by the attachment of a pull-up resistor on DP (FS) or DM (LS).
+ */
+
+ USB_OTG_ResetPort(pdev);
+ return 0;
+}
+
+/**
+ * @brief HCD_IsDeviceConnected
+ * Check if the device is connected.
+ * @param pdev : Selected device
+ * @retval Device connection status. 1 -> connected and 0 -> disconnected
+ *
+ */
+uint32_t HCD_IsDeviceConnected(USB_OTG_CORE_HANDLE *pdev)
+{
+ return (pdev->host.ConnSts);
+}
+
+/**
+ * @brief HCD_GetCurrentFrame
+ * This function returns the frame number for sof packet
+ * @param pdev : Selected device
+ * @retval Frame number
+ *
+ */
+uint32_t HCD_GetCurrentFrame (USB_OTG_CORE_HANDLE *pdev)
+{
+ return (USB_OTG_READ_REG32(&pdev->regs.HREGS->HFNUM) & 0xFFFF) ;
+}
+
+/**
+ * @brief HCD_GetURB_State
+ * This function returns the last URBstate
+ * @param pdev: Selected device
+ * @retval URB_STATE
+ *
+ */
+URB_STATE HCD_GetURB_State (USB_OTG_CORE_HANDLE *pdev , uint8_t ch_num)
+{
+ return pdev->host.URB_State[ch_num] ;
+}
+
+/**
+ * @brief HCD_GetXferCnt
+ * This function returns the last URBstate
+ * @param pdev: Selected device
+ * @retval No. of data bytes transferred
+ *
+ */
+uint32_t HCD_GetXferCnt (USB_OTG_CORE_HANDLE *pdev, uint8_t ch_num)
+{
+ return pdev->host.XferCnt[ch_num] ;
+}
+
+
+
+/**
+ * @brief HCD_GetHCState
+ * This function returns the HC Status
+ * @param pdev: Selected device
+ * @retval HC_STATUS
+ *
+ */
+HC_STATUS HCD_GetHCState (USB_OTG_CORE_HANDLE *pdev , uint8_t ch_num)
+{
+ return pdev->host.HC_Status[ch_num] ;
+}
+
+/**
+ * @brief HCD_HC_Init
+ * This function prepare a HC and start a transfer
+ * @param pdev: Selected device
+ * @param hc_num: Channel number
+ * @retval status
+ */
+uint32_t HCD_HC_Init (USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+ return USB_OTG_HC_Init(pdev, hc_num);
+}
+
+/**
+ * @brief HCD_SubmitRequest
+ * This function prepare a HC and start a transfer
+ * @param pdev: Selected device
+ * @param hc_num: Channel number
+ * @retval status
+ */
+uint32_t HCD_SubmitRequest (USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+
+ pdev->host.URB_State[hc_num] = URB_IDLE;
+ pdev->host.hc[hc_num].xfer_count = 0 ;
+ return USB_OTG_HC_StartXfer(pdev, hc_num);
+}
+
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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