Mercurial > public > ostc4

comparison Common/Drivers/STM32F4xx_HAL_DRIVER_v120/Src/stm32f4xx_hal_pcd_ex.c @ 38:5f11787b4f42

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
include in ostc4 repository
author heinrichsweikamp
date Sat, 28 Apr 2018 11:52:34 +0200
parents
children
comparison
equal deleted inserted replaced
37:ccc45c0e1ea2 38:5f11787b4f42
1 /**
2 ******************************************************************************
3 * @file stm32f4xx_hal_pcd_ex.c
4 * @author MCD Application Team
5 * @version V1.2.0
6 * @date 26-December-2014
7 * @brief PCD HAL module driver.
8 * This file provides firmware functions to manage the following
9 * functionalities of the USB Peripheral Controller:
10 * + Extended features functions
11 *
12 ******************************************************************************
13 * @attention
14 *
15 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
16 *
17 * Redistribution and use in source and binary forms, with or without modification,
18 * are permitted provided that the following conditions are met:
19 * 1. Redistributions of source code must retain the above copyright notice,
20 * this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright notice,
22 * this list of conditions and the following disclaimer in the documentation
23 * and/or other materials provided with the distribution.
24 * 3. Neither the name of STMicroelectronics nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
31 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
34 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 *
39 ******************************************************************************
40 */
41
42 /* Includes ------------------------------------------------------------------*/
43 #include "stm32f4xx_hal.h"
44
45 /** @addtogroup STM32F4xx_HAL_Driver
46 * @{
47 */
48
49 /** @defgroup PCDEx PCDEx
50 * @brief PCD Extended HAL module driver
51 * @{
52 */
53 #ifdef HAL_PCD_MODULE_ENABLED
54
55 /* Private types -------------------------------------------------------------*/
56 /* Private variables ---------------------------------------------------------*/
57 /* Private constants ---------------------------------------------------------*/
58 /* Private macros ------------------------------------------------------------*/
59 /* Private functions ---------------------------------------------------------*/
60 /* Exported functions --------------------------------------------------------*/
61
62 /** @defgroup PCDEx_Exported_Functions PCDEx Exported Functions
63 * @{
64 */
65
66 /** @defgroup PCDEx_Exported_Functions_Group1 Peripheral Control functions
67 * @brief PCDEx control functions
68 *
69 @verbatim
70 ===============================================================================
71 ##### Extended features functions #####
72 ===============================================================================
73 [..] This section provides functions allowing to:
74 (+) Update FIFO configuration
75
76 @endverbatim
77 * @{
78 */
79
80 /**
81 * @brief Set Tx FIFO
82 * @param hpcd: PCD handle
83 * @param fifo: The number of Tx fifo
84 * @param size: Fifo size
85 * @retval HAL status
86 */
87 HAL_StatusTypeDef HAL_PCDEx_SetTxFiFo(PCD_HandleTypeDef *hpcd, uint8_t fifo, uint16_t size)
88 {
89 uint8_t i = 0;
90 uint32_t Tx_Offset = 0;
91
92 /* TXn min size = 16 words. (n : Transmit FIFO index)
93 When a TxFIFO is not used, the Configuration should be as follows:
94 case 1 : n > m and Txn is not used (n,m : Transmit FIFO indexes)
95 --> Txm can use the space allocated for Txn.
96 case2 : n < m and Txn is not used (n,m : Transmit FIFO indexes)
97 --> Txn should be configured with the minimum space of 16 words
98 The FIFO is used optimally when used TxFIFOs are allocated in the top
99 of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
100 When DMA is used 3n * FIFO locations should be reserved for internal DMA registers */
101
102 Tx_Offset = hpcd->Instance->GRXFSIZ;
103
104 if(fifo == 0)
105 {
106 hpcd->Instance->DIEPTXF0_HNPTXFSIZ = (size << 16) | Tx_Offset;
107 }
108 else
109 {
110 Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16;
111 for (i = 0; i < (fifo - 1); i++)
112 {
113 Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16);
114 }
115
116 /* Multiply Tx_Size by 2 to get higher performance */
117 hpcd->Instance->DIEPTXF[fifo - 1] = (size << 16) | Tx_Offset;
118
119 }
120
121 return HAL_OK;
122 }
123
124 /**
125 * @brief Set Rx FIFO
126 * @param hpcd: PCD handle
127 * @param size: Size of Rx fifo
128 * @retval HAL status
129 */
130 HAL_StatusTypeDef HAL_PCDEx_SetRxFiFo(PCD_HandleTypeDef *hpcd, uint16_t size)
131 {
132 hpcd->Instance->GRXFSIZ = size;
133
134 return HAL_OK;
135 }
136
137 /**
138 * @}
139 */
140
141 /**
142 * @}
143 */
144
145 #endif /* HAL_PCD_MODULE_ENABLED */
146 /**
147 * @}
148 */
149
150 /**
151 * @}
152 */
153
154 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/