WebSVN – LedShow – Blame – /trunk/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c

Rev	Author	Line No.	Line
2	mjames	1	/**
		2	******************************************************************************
		3	* @file usbd_ioreq.c
		4	* @author MCD Application Team
		5	* @brief This file provides the IO requests APIs for control endpoints.
		6	******************************************************************************
		7	* @attention
		8	*
9	mjames	9	* <h2><center>© Copyright (c) 2015 STMicroelectronics.
		10	* All rights reserved.</center></h2>
2	mjames	11	*
9	mjames	12	* This software component is licensed by ST under Ultimate Liberty license
		13	* SLA0044, the "License"; You may not use this file except in compliance with
		14	* the License. You may obtain a copy of the License at:
		15	* www.st.com/SLA0044
2	mjames	16	*
		17	******************************************************************************
9	mjames	18	*/
2	mjames	19
		20	/* Includes ------------------------------------------------------------------*/
		21	#include "usbd_ioreq.h"
		22
		23	/** @addtogroup STM32_USB_DEVICE_LIBRARY
		24	* @{
		25	*/
		26
		27
9	mjames	28	/** @defgroup USBD_IOREQ
2	mjames	29	* @brief control I/O requests module
		30	* @{
9	mjames	31	*/
2	mjames	32
		33	/** @defgroup USBD_IOREQ_Private_TypesDefinitions
		34	* @{
9	mjames	35	*/
2	mjames	36	/**
		37	* @}
9	mjames	38	*/
2	mjames	39
		40
		41	/** @defgroup USBD_IOREQ_Private_Defines
		42	* @{
9	mjames	43	*/
2	mjames	44
		45	/**
		46	* @}
9	mjames	47	*/
2	mjames	48
		49
		50	/** @defgroup USBD_IOREQ_Private_Macros
		51	* @{
9	mjames	52	*/
2	mjames	53	/**
		54	* @}
9	mjames	55	*/
2	mjames	56
		57
		58	/** @defgroup USBD_IOREQ_Private_Variables
		59	* @{
9	mjames	60	*/
2	mjames	61
		62	/**
		63	* @}
9	mjames	64	*/
2	mjames	65
		66
		67	/** @defgroup USBD_IOREQ_Private_FunctionPrototypes
		68	* @{
9	mjames	69	*/
2	mjames	70	/**
		71	* @}
9	mjames	72	*/
2	mjames	73
		74
		75	/** @defgroup USBD_IOREQ_Private_Functions
		76	* @{
9	mjames	77	*/
2	mjames	78
		79	/**
		80	* @brief USBD_CtlSendData
		81	* send data on the ctl pipe
		82	* @param pdev: device instance
		83	* @param buff: pointer to data buffer
		84	* @param len: length of data to be sent
		85	* @retval status
		86	*/
9	mjames	87	USBD_StatusTypeDef USBD_CtlSendData(USBD_HandleTypeDef *pdev,
		88	uint8_t *pbuf, uint16_t len)
2	mjames	89	{
		90	/* Set EP0 State */
9	mjames	91	pdev->ep0_state = USBD_EP0_DATA_IN;
2	mjames	92	pdev->ep_in[0].total_length = len;
		93	pdev->ep_in[0].rem_length = len;
9	mjames	94
		95	/* Start the transfer */
		96	USBD_LL_Transmit(pdev, 0x00U, pbuf, len);
		97
2	mjames	98	return USBD_OK;
		99	}
		100
		101	/**
		102	* @brief USBD_CtlContinueSendData
		103	* continue sending data on the ctl pipe
		104	* @param pdev: device instance
		105	* @param buff: pointer to data buffer
		106	* @param len: length of data to be sent
		107	* @retval status
		108	*/
9	mjames	109	USBD_StatusTypeDef USBD_CtlContinueSendData(USBD_HandleTypeDef *pdev,
		110	uint8_t *pbuf, uint16_t len)
2	mjames	111	{
9	mjames	112	/* Start the next transfer */
		113	USBD_LL_Transmit(pdev, 0x00U, pbuf, len);
		114
2	mjames	115	return USBD_OK;
		116	}
		117
		118	/**
		119	* @brief USBD_CtlPrepareRx
		120	* receive data on the ctl pipe
		121	* @param pdev: device instance
		122	* @param buff: pointer to data buffer
		123	* @param len: length of data to be received
		124	* @retval status
		125	*/
9	mjames	126	USBD_StatusTypeDef USBD_CtlPrepareRx(USBD_HandleTypeDef *pdev,
		127	uint8_t *pbuf, uint16_t len)
2	mjames	128	{
		129	/* Set EP0 State */
9	mjames	130	pdev->ep0_state = USBD_EP0_DATA_OUT;
2	mjames	131	pdev->ep_out[0].total_length = len;
		132	pdev->ep_out[0].rem_length = len;
9	mjames	133
2	mjames	134	/* Start the transfer */
9	mjames	135	USBD_LL_PrepareReceive(pdev, 0U, pbuf, len);
		136
2	mjames	137	return USBD_OK;
		138	}
		139
		140	/**
		141	* @brief USBD_CtlContinueRx
		142	* continue receive data on the ctl pipe
		143	* @param pdev: device instance
		144	* @param buff: pointer to data buffer
		145	* @param len: length of data to be received
		146	* @retval status
		147	*/
9	mjames	148	USBD_StatusTypeDef USBD_CtlContinueRx(USBD_HandleTypeDef *pdev,
		149	uint8_t *pbuf, uint16_t len)
2	mjames	150	{
9	mjames	151	USBD_LL_PrepareReceive(pdev, 0U, pbuf, len);
2	mjames	152
		153	return USBD_OK;
		154	}
9	mjames	155
2	mjames	156	/**
		157	* @brief USBD_CtlSendStatus
		158	* send zero lzngth packet on the ctl pipe
		159	* @param pdev: device instance
		160	* @retval status
		161	*/
9	mjames	162	USBD_StatusTypeDef USBD_CtlSendStatus(USBD_HandleTypeDef *pdev)
2	mjames	163	{
		164	/* Set EP0 State */
		165	pdev->ep0_state = USBD_EP0_STATUS_IN;
9	mjames	166
		167	/* Start the transfer */
		168	USBD_LL_Transmit(pdev, 0x00U, NULL, 0U);
		169
2	mjames	170	return USBD_OK;
		171	}
		172
		173	/**
		174	* @brief USBD_CtlReceiveStatus
		175	* receive zero lzngth packet on the ctl pipe
		176	* @param pdev: device instance
		177	* @retval status
		178	*/
9	mjames	179	USBD_StatusTypeDef USBD_CtlReceiveStatus(USBD_HandleTypeDef *pdev)
2	mjames	180	{
		181	/* Set EP0 State */
9	mjames	182	pdev->ep0_state = USBD_EP0_STATUS_OUT;
2	mjames	183
9	mjames	184	/* Start the transfer */
		185	USBD_LL_PrepareReceive(pdev, 0U, NULL, 0U);
		186
2	mjames	187	return USBD_OK;
		188	}
		189
		190	/**
		191	* @brief USBD_GetRxCount
		192	* returns the received data length
		193	* @param pdev: device instance
		194	* @param ep_addr: endpoint address
		195	* @retval Rx Data blength
		196	*/
9	mjames	197	uint32_t USBD_GetRxCount(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
2	mjames	198	{
		199	return USBD_LL_GetRxDataSize(pdev, ep_addr);
		200	}
		201
		202	/**
		203	* @}
9	mjames	204	*/
2	mjames	205
		206
		207	/**
		208	* @}
9	mjames	209	*/
2	mjames	210
		211
		212	/**
		213	* @}
9	mjames	214	*/
2	mjames	215
		216	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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