Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pccard.c @ 240:625d20070261 div-fixes-5
Improvement SPI stability/recoverability
The core part of this commit comes from careful code reading. The core is the
swap of Scheduler_Request_sync_with_SPI(SPI_SYNC_METHOD_SOFT) and
SPI_Start_single_TxRx_with_Master(). This code is sitting in an if-clause
that is triggered on SPI comms failure. Instead of blindly trying to
communicate again (which will very likely fail again), first try to reset
the comms link, and then try to communicate again. That simply makes
more sense in this case.
This is heavily tested, on 2 simple dives, and 5 very long deco schedules
from the simulator (10+ hour deco's), and a lot of small simulated dives
(upto 2h runtime). Of all these tests, only one long session failed after
9 out of 11h runtime. Analyzing that one failure, suggests that the
RTE is looping in some error handler, which (obviously) results in
a SPI comms failure as a result. I consider this not part of this change.
Additionally, some more cleanup is done in this code.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
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date | Mon, 08 Apr 2019 11:49:13 +0200 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_hal_pccard.c |
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4 * @author MCD Application Team |
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5 * @brief PCCARD HAL module driver. |
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6 * This file provides a generic firmware to drive PCCARD memories mounted |
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7 * as external device. |
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8 * |
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9 @verbatim |
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10 =============================================================================== |
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11 ##### How to use this driver ##### |
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12 =============================================================================== |
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13 [..] |
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14 This driver is a generic layered driver which contains a set of APIs used to |
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15 control PCCARD/compact flash memories. It uses the FMC/FSMC layer functions |
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16 to interface with PCCARD devices. This driver is used for: |
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17 |
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18 (+) PCCARD/Compact Flash memory configuration sequence using the function |
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19 HAL_PCCARD_Init()/HAL_CF_Init() with control and timing parameters for |
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20 both common and attribute spaces. |
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21 |
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22 (+) Read PCCARD/Compact Flash memory maker and device IDs using the function |
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23 HAL_PCCARD_Read_ID()/HAL_CF_Read_ID(). The read information is stored in |
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24 the CompactFlash_ID structure declared by the function caller. |
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25 |
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26 (+) Access PCCARD/Compact Flash memory by read/write operations using the functions |
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27 HAL_PCCARD_Read_Sector()/ HAL_PCCARD_Write_Sector() - |
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28 HAL_CF_Read_Sector()/HAL_CF_Write_Sector(), to read/write sector. |
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29 |
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30 (+) Perform PCCARD/Compact Flash Reset chip operation using the function |
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31 HAL_PCCARD_Reset()/HAL_CF_Reset. |
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32 |
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33 (+) Perform PCCARD/Compact Flash erase sector operation using the function |
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34 HAL_PCCARD_Erase_Sector()/HAL_CF_Erase_Sector. |
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35 |
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36 (+) Read the PCCARD/Compact Flash status operation using the function |
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37 HAL_PCCARD_ReadStatus()/HAL_CF_ReadStatus(). |
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38 |
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39 (+) You can monitor the PCCARD/Compact Flash device HAL state by calling |
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40 the function HAL_PCCARD_GetState()/HAL_CF_GetState() |
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41 |
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42 [..] |
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43 (@) This driver is a set of generic APIs which handle standard PCCARD/compact flash |
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44 operations. If a PCCARD/Compact Flash device contains different operations |
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45 and/or implementations, it should be implemented separately. |
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46 |
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47 @endverbatim |
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48 ****************************************************************************** |
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49 * @attention |
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50 * |
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51 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
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52 * |
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53 * Redistribution and use in source and binary forms, with or without modification, |
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54 * are permitted provided that the following conditions are met: |
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55 * 1. Redistributions of source code must retain the above copyright notice, |
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56 * this list of conditions and the following disclaimer. |
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57 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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58 * this list of conditions and the following disclaimer in the documentation |
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59 * and/or other materials provided with the distribution. |
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60 * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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61 * may be used to endorse or promote products derived from this software |
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62 * without specific prior written permission. |
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63 * |
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64 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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65 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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67 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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70 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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71 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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72 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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73 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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74 * |
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75 ****************************************************************************** |
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76 */ |
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77 |
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78 /* Includes ------------------------------------------------------------------*/ |
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79 #include "stm32f4xx_hal.h" |
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80 |
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81 /** @addtogroup STM32F4xx_HAL_Driver |
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82 * @{ |
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83 */ |
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84 |
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85 #ifdef HAL_PCCARD_MODULE_ENABLED |
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86 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\ |
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87 defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) |
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88 /** @defgroup PCCARD PCCARD |
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89 * @brief PCCARD HAL module driver |
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90 * @{ |
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91 */ |
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92 /* Private typedef -----------------------------------------------------------*/ |
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93 /* Private define ------------------------------------------------------------*/ |
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94 |
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95 /** @defgroup PCCARD_Private_Defines PCCARD Private Defines |
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96 * @{ |
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97 */ |
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98 #define PCCARD_TIMEOUT_READ_ID 0x0000FFFFU |
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99 #define PCCARD_TIMEOUT_READ_WRITE_SECTOR 0x0000FFFFU |
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100 #define PCCARD_TIMEOUT_ERASE_SECTOR 0x00000400U |
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101 #define PCCARD_TIMEOUT_STATUS 0x01000000U |
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102 |
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103 #define PCCARD_STATUS_OK (uint8_t)0x58 |
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104 #define PCCARD_STATUS_WRITE_OK (uint8_t)0x50 |
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105 /** |
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106 * @} |
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107 */ |
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108 |
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109 /* Private macro -------------------------------------------------------------*/ |
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110 /* Private variables ---------------------------------------------------------*/ |
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111 /* Private function ----------------------------------------------------------*/ |
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112 /* Exported functions --------------------------------------------------------*/ |
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113 /** @defgroup PCCARD_Exported_Functions PCCARD Exported Functions |
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114 * @{ |
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115 */ |
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116 |
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117 /** @defgroup PCCARD_Exported_Functions_Group1 Initialization and de-initialization functions |
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118 * @brief Initialization and Configuration functions |
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119 * |
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120 @verbatim |
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121 ============================================================================== |
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122 ##### PCCARD Initialization and de-initialization functions ##### |
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123 ============================================================================== |
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124 [..] |
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125 This section provides functions allowing to initialize/de-initialize |
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126 the PCCARD memory |
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127 |
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128 @endverbatim |
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129 * @{ |
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130 */ |
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131 |
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132 /** |
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133 * @brief Perform the PCCARD memory Initialization sequence |
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134 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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135 * the configuration information for PCCARD module. |
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136 * @param ComSpaceTiming Common space timing structure |
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137 * @param AttSpaceTiming Attribute space timing structure |
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138 * @param IOSpaceTiming IO space timing structure |
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139 * @retval HAL status |
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140 */ |
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141 HAL_StatusTypeDef HAL_PCCARD_Init(PCCARD_HandleTypeDef *hpccard, FMC_NAND_PCC_TimingTypeDef *ComSpaceTiming, FMC_NAND_PCC_TimingTypeDef *AttSpaceTiming, FMC_NAND_PCC_TimingTypeDef *IOSpaceTiming) |
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142 { |
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143 /* Check the PCCARD controller state */ |
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144 if(hpccard == NULL) |
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145 { |
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146 return HAL_ERROR; |
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147 } |
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148 |
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149 if(hpccard->State == HAL_PCCARD_STATE_RESET) |
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150 { |
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151 /* Allocate lock resource and initialize it */ |
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152 hpccard->Lock = HAL_UNLOCKED; |
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153 /* Initialize the low level hardware (MSP) */ |
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154 HAL_PCCARD_MspInit(hpccard); |
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155 } |
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156 |
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157 /* Initialize the PCCARD state */ |
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158 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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159 |
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160 /* Initialize PCCARD control Interface */ |
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161 FMC_PCCARD_Init(hpccard->Instance, &(hpccard->Init)); |
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162 |
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163 /* Init PCCARD common space timing Interface */ |
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164 FMC_PCCARD_CommonSpace_Timing_Init(hpccard->Instance, ComSpaceTiming); |
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165 |
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166 /* Init PCCARD attribute space timing Interface */ |
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167 FMC_PCCARD_AttributeSpace_Timing_Init(hpccard->Instance, AttSpaceTiming); |
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168 |
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169 /* Init PCCARD IO space timing Interface */ |
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170 FMC_PCCARD_IOSpace_Timing_Init(hpccard->Instance, IOSpaceTiming); |
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171 |
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172 /* Enable the PCCARD device */ |
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173 __FMC_PCCARD_ENABLE(hpccard->Instance); |
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174 |
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175 /* Update the PCCARD state */ |
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176 hpccard->State = HAL_PCCARD_STATE_READY; |
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177 |
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178 return HAL_OK; |
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179 |
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180 } |
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181 |
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182 /** |
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183 * @brief Perform the PCCARD memory De-initialization sequence |
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184 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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185 * the configuration information for PCCARD module. |
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186 * @retval HAL status |
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187 */ |
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188 HAL_StatusTypeDef HAL_PCCARD_DeInit(PCCARD_HandleTypeDef *hpccard) |
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189 { |
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190 /* De-Initialize the low level hardware (MSP) */ |
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191 HAL_PCCARD_MspDeInit(hpccard); |
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192 |
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193 /* Configure the PCCARD registers with their reset values */ |
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194 FMC_PCCARD_DeInit(hpccard->Instance); |
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195 |
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196 /* Update the PCCARD controller state */ |
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197 hpccard->State = HAL_PCCARD_STATE_RESET; |
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198 |
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199 /* Release Lock */ |
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200 __HAL_UNLOCK(hpccard); |
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201 |
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202 return HAL_OK; |
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203 } |
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204 |
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205 /** |
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206 * @brief PCCARD MSP Init |
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207 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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208 * the configuration information for PCCARD module. |
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209 * @retval None |
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210 */ |
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211 __weak void HAL_PCCARD_MspInit(PCCARD_HandleTypeDef *hpccard) |
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212 { |
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213 /* Prevent unused argument(s) compilation warning */ |
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214 UNUSED(hpccard); |
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215 /* NOTE : This function Should not be modified, when the callback is needed, |
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216 the HAL_PCCARD_MspInit could be implemented in the user file |
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217 */ |
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218 } |
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219 |
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220 /** |
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221 * @brief PCCARD MSP DeInit |
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222 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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223 * the configuration information for PCCARD module. |
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224 * @retval None |
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225 */ |
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226 __weak void HAL_PCCARD_MspDeInit(PCCARD_HandleTypeDef *hpccard) |
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227 { |
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228 /* Prevent unused argument(s) compilation warning */ |
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229 UNUSED(hpccard); |
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230 /* NOTE : This function Should not be modified, when the callback is needed, |
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231 the HAL_PCCARD_MspDeInit could be implemented in the user file |
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232 */ |
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233 } |
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234 |
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235 /** |
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236 * @} |
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237 */ |
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238 |
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239 /** @defgroup PCCARD_Exported_Functions_Group2 Input and Output functions |
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240 * @brief Input Output and memory control functions |
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241 * |
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242 @verbatim |
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243 ============================================================================== |
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244 ##### PCCARD Input and Output functions ##### |
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245 ============================================================================== |
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246 [..] |
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247 This section provides functions allowing to use and control the PCCARD memory |
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248 |
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249 @endverbatim |
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250 * @{ |
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251 */ |
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252 |
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253 /** |
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254 * @brief Read Compact Flash's ID. |
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255 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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256 * the configuration information for PCCARD module. |
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257 * @param CompactFlash_ID Compact flash ID structure. |
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258 * @param pStatus pointer to compact flash status |
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259 * @retval HAL status |
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260 * |
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261 */ |
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262 HAL_StatusTypeDef HAL_PCCARD_Read_ID(PCCARD_HandleTypeDef *hpccard, uint8_t CompactFlash_ID[], uint8_t *pStatus) |
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263 { |
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264 uint32_t timeout = PCCARD_TIMEOUT_READ_ID, index = 0U; |
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265 uint8_t status = 0; |
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266 |
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267 /* Process Locked */ |
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268 __HAL_LOCK(hpccard); |
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269 |
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270 /* Check the PCCARD controller state */ |
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271 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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272 { |
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273 return HAL_BUSY; |
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274 } |
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275 |
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276 /* Update the PCCARD controller state */ |
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277 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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278 |
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279 /* Initialize the PCCARD status */ |
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280 *pStatus = PCCARD_READY; |
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281 |
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282 /* Send the Identify Command */ |
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283 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = 0xECEC; |
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284 |
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285 /* Read PCCARD IDs and timeout treatment */ |
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286 do |
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287 { |
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288 /* Read the PCCARD status */ |
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289 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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290 |
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291 timeout--; |
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292 }while((status != PCCARD_STATUS_OK) && timeout); |
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293 |
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294 if(timeout == 0U) |
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295 { |
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296 *pStatus = PCCARD_TIMEOUT_ERROR; |
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297 } |
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298 else |
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299 { |
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300 /* Read PCCARD ID bytes */ |
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301 for(index = 0U; index < 16U; index++) |
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302 { |
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303 CompactFlash_ID[index] = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_DATA); |
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304 } |
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305 } |
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306 |
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307 /* Update the PCCARD controller state */ |
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308 hpccard->State = HAL_PCCARD_STATE_READY; |
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309 |
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310 /* Process unlocked */ |
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311 __HAL_UNLOCK(hpccard); |
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312 |
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313 return HAL_OK; |
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314 } |
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315 |
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316 /** |
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317 * @brief Read sector from PCCARD memory |
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318 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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319 * the configuration information for PCCARD module. |
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320 * @param pBuffer pointer to destination read buffer |
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321 * @param SectorAddress Sector address to read |
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322 * @param pStatus pointer to PCCARD status |
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323 * @retval HAL status |
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324 */ |
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325 HAL_StatusTypeDef HAL_PCCARD_Read_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus) |
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326 { |
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327 uint32_t timeout = PCCARD_TIMEOUT_READ_WRITE_SECTOR, index = 0U; |
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328 uint8_t status = 0; |
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329 |
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330 /* Process Locked */ |
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331 __HAL_LOCK(hpccard); |
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332 |
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333 /* Check the PCCARD controller state */ |
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334 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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335 { |
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336 return HAL_BUSY; |
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337 } |
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338 |
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339 /* Update the PCCARD controller state */ |
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340 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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341 |
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342 /* Initialize PCCARD status */ |
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343 *pStatus = PCCARD_READY; |
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344 |
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345 /* Set the parameters to write a sector */ |
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346 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00; |
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347 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = ((uint16_t)0x0100) | ((uint16_t)SectorAddress); |
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348 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = (uint16_t)0xE4A0; |
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349 |
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350 do |
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351 { |
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352 /* wait till the Status = 0x80 */ |
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353 status = *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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354 timeout--; |
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355 }while((status == 0x80) && timeout); |
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356 |
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357 if(timeout == 0U) |
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358 { |
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359 *pStatus = PCCARD_TIMEOUT_ERROR; |
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360 } |
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361 |
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362 timeout = PCCARD_TIMEOUT_READ_WRITE_SECTOR; |
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363 |
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364 do |
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365 { |
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366 /* wait till the Status = PCCARD_STATUS_OK */ |
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367 status = *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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368 timeout--; |
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369 }while((status != PCCARD_STATUS_OK) && timeout); |
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370 |
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371 if(timeout == 0U) |
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372 { |
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373 *pStatus = PCCARD_TIMEOUT_ERROR; |
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374 } |
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375 |
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376 /* Read bytes */ |
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377 for(; index < PCCARD_SECTOR_SIZE; index++) |
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378 { |
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379 *(uint16_t *)pBuffer++ = *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR); |
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380 } |
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381 |
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382 /* Update the PCCARD controller state */ |
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383 hpccard->State = HAL_PCCARD_STATE_READY; |
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384 |
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385 /* Process unlocked */ |
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386 __HAL_UNLOCK(hpccard); |
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387 |
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388 return HAL_OK; |
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389 } |
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390 |
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391 |
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392 /** |
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393 * @brief Write sector to PCCARD memory |
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394 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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395 * the configuration information for PCCARD module. |
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396 * @param pBuffer pointer to source write buffer |
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397 * @param SectorAddress Sector address to write |
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398 * @param pStatus pointer to PCCARD status |
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399 * @retval HAL status |
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400 */ |
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401 HAL_StatusTypeDef HAL_PCCARD_Write_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus) |
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402 { |
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403 uint32_t timeout = PCCARD_TIMEOUT_READ_WRITE_SECTOR, index = 0U; |
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404 uint8_t status = 0; |
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405 |
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406 /* Process Locked */ |
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407 __HAL_LOCK(hpccard); |
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408 |
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409 /* Check the PCCARD controller state */ |
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410 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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411 { |
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412 return HAL_BUSY; |
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413 } |
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414 |
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415 /* Update the PCCARD controller state */ |
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416 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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417 |
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418 /* Initialize PCCARD status */ |
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419 *pStatus = PCCARD_READY; |
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420 |
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421 /* Set the parameters to write a sector */ |
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422 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00; |
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423 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = ((uint16_t)0x0100) | ((uint16_t)SectorAddress); |
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424 *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = (uint16_t)0x30A0; |
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425 |
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426 do |
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427 { |
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428 /* Wait till the Status = PCCARD_STATUS_OK */ |
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429 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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430 timeout--; |
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431 }while((status != PCCARD_STATUS_OK) && timeout); |
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432 |
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433 if(timeout == 0U) |
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434 { |
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435 *pStatus = PCCARD_TIMEOUT_ERROR; |
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436 } |
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437 |
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438 /* Write bytes */ |
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439 for(; index < PCCARD_SECTOR_SIZE; index++) |
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440 { |
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441 *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR) = *(uint16_t *)pBuffer++; |
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442 } |
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443 |
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444 do |
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445 { |
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446 /* Wait till the Status = PCCARD_STATUS_WRITE_OK */ |
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447 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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448 timeout--; |
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449 }while((status != PCCARD_STATUS_WRITE_OK) && timeout); |
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450 |
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451 if(timeout == 0U) |
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452 { |
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453 *pStatus = PCCARD_TIMEOUT_ERROR; |
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454 } |
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455 |
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456 /* Update the PCCARD controller state */ |
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457 hpccard->State = HAL_PCCARD_STATE_READY; |
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458 |
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459 /* Process unlocked */ |
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460 __HAL_UNLOCK(hpccard); |
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461 |
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462 return HAL_OK; |
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463 } |
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464 |
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465 |
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466 /** |
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467 * @brief Erase sector from PCCARD memory |
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468 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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469 * the configuration information for PCCARD module. |
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470 * @param SectorAddress Sector address to erase |
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471 * @param pStatus pointer to PCCARD status |
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472 * @retval HAL status |
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473 */ |
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474 HAL_StatusTypeDef HAL_PCCARD_Erase_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t SectorAddress, uint8_t *pStatus) |
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475 { |
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476 uint32_t timeout = PCCARD_TIMEOUT_ERASE_SECTOR; |
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477 uint8_t status = 0; |
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478 |
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479 /* Process Locked */ |
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480 __HAL_LOCK(hpccard); |
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481 |
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482 /* Check the PCCARD controller state */ |
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483 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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484 { |
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485 return HAL_BUSY; |
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486 } |
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487 |
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488 /* Update the PCCARD controller state */ |
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489 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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490 |
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491 /* Initialize PCCARD status */ |
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492 *pStatus = PCCARD_READY; |
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493 |
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494 /* Set the parameters to write a sector */ |
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495 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_LOW) = 0x00; |
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496 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = 0x00; |
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497 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_NUMBER) = SectorAddress; |
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498 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT) = 0x01; |
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499 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CARD_HEAD) = 0xA0; |
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500 *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD) = ATA_ERASE_SECTOR_CMD; |
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501 |
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502 /* wait till the PCCARD is ready */ |
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503 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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504 |
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505 while((status != PCCARD_STATUS_WRITE_OK) && timeout) |
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506 { |
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507 status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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508 timeout--; |
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509 } |
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510 |
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511 if(timeout == 0U) |
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512 { |
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513 *pStatus = PCCARD_TIMEOUT_ERROR; |
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514 } |
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515 |
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516 /* Check the PCCARD controller state */ |
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517 hpccard->State = HAL_PCCARD_STATE_READY; |
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518 |
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519 /* Process unlocked */ |
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520 __HAL_UNLOCK(hpccard); |
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521 |
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522 return HAL_OK; |
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523 } |
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524 |
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525 /** |
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526 * @brief Reset the PCCARD memory |
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527 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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528 * the configuration information for PCCARD module. |
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529 * @retval HAL status |
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530 */ |
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531 HAL_StatusTypeDef HAL_PCCARD_Reset(PCCARD_HandleTypeDef *hpccard) |
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532 { |
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533 /* Process Locked */ |
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534 __HAL_LOCK(hpccard); |
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535 |
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536 /* Check the PCCARD controller state */ |
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537 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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538 { |
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539 return HAL_BUSY; |
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540 } |
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541 |
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542 /* Provide a SW reset and Read and verify the: |
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543 - PCCard Configuration Option Register at address 0x98000200 --> 0x80 |
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544 - Card Configuration and Status Register at address 0x98000202 --> 0x00 |
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545 - Pin Replacement Register at address 0x98000204 --> 0x0C |
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546 - Socket and Copy Register at address 0x98000206 --> 0x00 |
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547 */ |
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548 |
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549 /* Check the PCCARD controller state */ |
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550 hpccard->State = HAL_PCCARD_STATE_BUSY; |
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551 |
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552 *(__IO uint8_t *)(PCCARD_ATTRIBUTE_SPACE_ADDRESS | ATA_CARD_CONFIGURATION ) = 0x01; |
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553 |
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554 /* Check the PCCARD controller state */ |
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555 hpccard->State = HAL_PCCARD_STATE_READY; |
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556 |
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557 /* Process unlocked */ |
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558 __HAL_UNLOCK(hpccard); |
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559 |
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560 return HAL_OK; |
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561 } |
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562 |
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563 /** |
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564 * @brief This function handles PCCARD device interrupt request. |
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565 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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566 * the configuration information for PCCARD module. |
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567 * @retval HAL status |
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568 */ |
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569 void HAL_PCCARD_IRQHandler(PCCARD_HandleTypeDef *hpccard) |
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570 { |
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571 /* Check PCCARD interrupt Rising edge flag */ |
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572 if(__FMC_PCCARD_GET_FLAG(hpccard->Instance, FMC_FLAG_RISING_EDGE)) |
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573 { |
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574 /* PCCARD interrupt callback*/ |
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575 HAL_PCCARD_ITCallback(hpccard); |
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576 |
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577 /* Clear PCCARD interrupt Rising edge pending bit */ |
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578 __FMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FMC_FLAG_RISING_EDGE); |
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579 } |
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580 |
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581 /* Check PCCARD interrupt Level flag */ |
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582 if(__FMC_PCCARD_GET_FLAG(hpccard->Instance, FMC_FLAG_LEVEL)) |
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583 { |
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584 /* PCCARD interrupt callback*/ |
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585 HAL_PCCARD_ITCallback(hpccard); |
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586 |
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587 /* Clear PCCARD interrupt Level pending bit */ |
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588 __FMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FMC_FLAG_LEVEL); |
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589 } |
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590 |
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591 /* Check PCCARD interrupt Falling edge flag */ |
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592 if(__FMC_PCCARD_GET_FLAG(hpccard->Instance, FMC_FLAG_FALLING_EDGE)) |
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593 { |
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594 /* PCCARD interrupt callback*/ |
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595 HAL_PCCARD_ITCallback(hpccard); |
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596 |
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597 /* Clear PCCARD interrupt Falling edge pending bit */ |
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598 __FMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FMC_FLAG_FALLING_EDGE); |
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599 } |
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600 |
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601 /* Check PCCARD interrupt FIFO empty flag */ |
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602 if(__FMC_PCCARD_GET_FLAG(hpccard->Instance, FMC_FLAG_FEMPT)) |
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603 { |
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604 /* PCCARD interrupt callback*/ |
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605 HAL_PCCARD_ITCallback(hpccard); |
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606 |
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607 /* Clear PCCARD interrupt FIFO empty pending bit */ |
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608 __FMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FMC_FLAG_FEMPT); |
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609 } |
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610 } |
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611 |
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612 /** |
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613 * @brief PCCARD interrupt feature callback |
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614 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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615 * the configuration information for PCCARD module. |
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616 * @retval None |
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617 */ |
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618 __weak void HAL_PCCARD_ITCallback(PCCARD_HandleTypeDef *hpccard) |
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619 { |
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620 /* Prevent unused argument(s) compilation warning */ |
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621 UNUSED(hpccard); |
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622 /* NOTE : This function Should not be modified, when the callback is needed, |
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623 the HAL_PCCARD_ITCallback could be implemented in the user file |
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624 */ |
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625 } |
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626 |
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627 /** |
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628 * @} |
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629 */ |
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630 |
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631 /** @defgroup PCCARD_Exported_Functions_Group3 State functions |
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632 * @brief Peripheral State functions |
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633 * |
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634 @verbatim |
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635 ============================================================================== |
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636 ##### PCCARD State functions ##### |
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637 ============================================================================== |
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638 [..] |
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639 This subsection permits to get in run-time the status of the PCCARD controller |
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640 and the data flow. |
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641 |
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642 @endverbatim |
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643 * @{ |
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644 */ |
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645 |
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646 /** |
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647 * @brief return the PCCARD controller state |
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648 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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649 * the configuration information for PCCARD module. |
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650 * @retval HAL state |
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651 */ |
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652 HAL_PCCARD_StateTypeDef HAL_PCCARD_GetState(PCCARD_HandleTypeDef *hpccard) |
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653 { |
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654 return hpccard->State; |
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655 } |
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656 |
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657 /** |
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658 * @brief Get the compact flash memory status |
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659 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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660 * the configuration information for PCCARD module. |
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661 * @retval New status of the PCCARD operation. This parameter can be: |
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662 * - CompactFlash_TIMEOUT_ERROR: when the previous operation generate |
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663 * a Timeout error |
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664 * - CompactFlash_READY: when memory is ready for the next operation |
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665 */ |
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666 HAL_PCCARD_StatusTypeDef HAL_PCCARD_GetStatus(PCCARD_HandleTypeDef *hpccard) |
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667 { |
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668 uint32_t timeout = PCCARD_TIMEOUT_STATUS, status_pccard = 0U; |
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669 |
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670 /* Check the PCCARD controller state */ |
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671 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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672 { |
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673 return HAL_PCCARD_STATUS_ONGOING; |
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674 } |
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675 |
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676 status_pccard = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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677 |
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678 while((status_pccard == PCCARD_BUSY) && timeout) |
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679 { |
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680 status_pccard = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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681 timeout--; |
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682 } |
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683 |
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684 if(timeout == 0U) |
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685 { |
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686 status_pccard = PCCARD_TIMEOUT_ERROR; |
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687 } |
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688 |
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689 /* Return the operation status */ |
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690 return (HAL_PCCARD_StatusTypeDef) status_pccard; |
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691 } |
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692 |
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693 /** |
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694 * @brief Reads the Compact Flash memory status using the Read status command |
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695 * @param hpccard pointer to a PCCARD_HandleTypeDef structure that contains |
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696 * the configuration information for PCCARD module. |
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697 * @retval The status of the Compact Flash memory. This parameter can be: |
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698 * - CompactFlash_BUSY: when memory is busy |
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699 * - CompactFlash_READY: when memory is ready for the next operation |
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700 * - CompactFlash_ERROR: when the previous operation generates error |
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701 */ |
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702 HAL_PCCARD_StatusTypeDef HAL_PCCARD_ReadStatus(PCCARD_HandleTypeDef *hpccard) |
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703 { |
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704 uint8_t data = 0U, status_pccard = PCCARD_BUSY; |
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705 |
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706 /* Check the PCCARD controller state */ |
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707 if(hpccard->State == HAL_PCCARD_STATE_BUSY) |
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708 { |
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709 return HAL_PCCARD_STATUS_ONGOING; |
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710 } |
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711 |
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712 /* Read status operation */ |
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713 data = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE); |
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714 |
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715 if((data & PCCARD_TIMEOUT_ERROR) == PCCARD_TIMEOUT_ERROR) |
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716 { |
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717 status_pccard = PCCARD_TIMEOUT_ERROR; |
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718 } |
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719 else if((data & PCCARD_READY) == PCCARD_READY) |
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720 { |
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721 status_pccard = PCCARD_READY; |
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722 } |
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723 |
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724 return (HAL_PCCARD_StatusTypeDef) status_pccard; |
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725 } |
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726 |
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727 /** |
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728 * @} |
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729 */ |
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730 |
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731 /** |
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732 * @} |
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733 */ |
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734 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx ||\ |
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735 STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */ |
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736 #endif /* HAL_PCCARD_MODULE_ENABLED */ |
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737 |
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738 /** |
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739 * @} |
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740 */ |
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741 |
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742 /** |
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743 * @} |
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744 */ |
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745 |
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746 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |