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| 1 | +/*********************************************************************************************************************** |
| 2 | + * Copyright [2020-2022] Renesas Electronics Corporation and/or its affiliates. All Rights Reserved. |
| 3 | + * |
| 4 | + * This software and documentation are supplied by Renesas Electronics America Inc. and may only be used with products |
| 5 | + * of Renesas Electronics Corp. and its affiliates ("Renesas"). No other uses are authorized. Renesas products are |
| 6 | + * sold pursuant to Renesas terms and conditions of sale. Purchasers are solely responsible for the selection and use |
| 7 | + * of Renesas products and Renesas assumes no liability. No license, express or implied, to any intellectual property |
| 8 | + * right is granted by Renesas. This software is protected under all applicable laws, including copyright laws. Renesas |
| 9 | + * reserves the right to change or discontinue this software and/or this documentation. THE SOFTWARE AND DOCUMENTATION |
| 10 | + * IS DELIVERED TO YOU "AS IS," AND RENESAS MAKES NO REPRESENTATIONS OR WARRANTIES, AND TO THE FULLEST EXTENT |
| 11 | + * PERMISSIBLE UNDER APPLICABLE LAW, DISCLAIMS ALL WARRANTIES, WHETHER EXPLICITLY OR IMPLICITLY, INCLUDING WARRANTIES |
| 12 | + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT, WITH RESPECT TO THE SOFTWARE OR |
| 13 | + * DOCUMENTATION. RENESAS SHALL HAVE NO LIABILITY ARISING OUT OF ANY SECURITY VULNERABILITY OR BREACH. TO THE MAXIMUM |
| 14 | + * EXTENT PERMITTED BY LAW, IN NO EVENT WILL RENESAS BE LIABLE TO YOU IN CONNECTION WITH THE SOFTWARE OR DOCUMENTATION |
| 15 | + * (OR ANY PERSON OR ENTITY CLAIMING RIGHTS DERIVED FROM YOU) FOR ANY LOSS, DAMAGES, OR CLAIMS WHATSOEVER, INCLUDING, |
| 16 | + * WITHOUT LIMITATION, ANY DIRECT, CONSEQUENTIAL, SPECIAL, INDIRECT, PUNITIVE, OR INCIDENTAL DAMAGES; ANY LOST PROFITS, |
| 17 | + * OTHER ECONOMIC DAMAGE, PROPERTY DAMAGE, OR PERSONAL INJURY; AND EVEN IF RENESAS HAS BEEN ADVISED OF THE POSSIBILITY |
| 18 | + * OF SUCH LOSS, DAMAGES, CLAIMS OR COSTS. |
| 19 | + **********************************************************************************************************************/ |
| 20 | + |
| 21 | +/*******************************************************************************************************************//** |
| 22 | + * @ingroup RENESAS_INTERFACES |
| 23 | + * @defgroup SPI_FLASH_API SPI Flash Interface |
| 24 | + * @brief Interface for accessing external SPI flash devices. |
| 25 | + * |
| 26 | + * @section SPI_FLASH_API_SUMMARY Summary |
| 27 | + * The SPI flash API provides an interface that configures, writes, and erases sectors in SPI flash devices. |
| 28 | + * |
| 29 | + * Implemented by: |
| 30 | + * - @ref OSPI |
| 31 | + * - @ref QSPI |
| 32 | + * @{ |
| 33 | + **********************************************************************************************************************/ |
| 34 | + |
| 35 | +#ifndef R_SPI_FLASH_API_H |
| 36 | +#define R_SPI_FLASH_API_H |
| 37 | + |
| 38 | +/*********************************************************************************************************************** |
| 39 | + * Includes |
| 40 | + **********************************************************************************************************************/ |
| 41 | + |
| 42 | +/* Register definitions, common services and error codes. */ |
| 43 | +#include "bsp_api.h" |
| 44 | + |
| 45 | +/* Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */ |
| 46 | +FSP_HEADER |
| 47 | + |
| 48 | +/********************************************************************************************************************** |
| 49 | + * Macro definitions |
| 50 | + **********************************************************************************************************************/ |
| 51 | + |
| 52 | +#define SPI_FLASH_ERASE_SIZE_CHIP_ERASE (UINT32_MAX) |
| 53 | + |
| 54 | +/********************************************************************************************************************** |
| 55 | + * Typedef definitions |
| 56 | + **********************************************************************************************************************/ |
| 57 | + |
| 58 | +/** Read mode. */ |
| 59 | +typedef enum e_spi_flash_read_mode |
| 60 | +{ |
| 61 | + SPI_FLASH_READ_MODE_STANDARD = 0, ///< Standard Read Mode (no dummy cycles) |
| 62 | + SPI_FLASH_READ_MODE_FAST_READ = 1, ///< Fast Read Mode (dummy cycles between address and data) |
| 63 | + SPI_FLASH_READ_MODE_FAST_READ_DUAL_OUTPUT = 2, ///< Fast Read Dual Output Mode (data on 2 lines) |
| 64 | + SPI_FLASH_READ_MODE_FAST_READ_DUAL_IO = 3, ///< Fast Read Dual I/O Mode (address and data on 2 lines) |
| 65 | + SPI_FLASH_READ_MODE_FAST_READ_QUAD_OUTPUT = 4, ///< Fast Read Quad Output Mode (data on 4 lines) |
| 66 | + SPI_FLASH_READ_MODE_FAST_READ_QUAD_IO = 5, ///< Fast Read Quad I/O Mode (address and data on 4 lines) |
| 67 | +} spi_flash_read_mode_t; |
| 68 | + |
| 69 | +/** SPI protocol. */ |
| 70 | +typedef enum e_spi_flash_protocol |
| 71 | +{ |
| 72 | + SPI_FLASH_PROTOCOL_EXTENDED_SPI = 0, ///< Extended SPI mode (commands on 1 line) |
| 73 | + |
| 74 | + /** QPI mode (commands on 4 lines). Note that the application must ensure the device is in QPI mode. */ |
| 75 | + SPI_FLASH_PROTOCOL_QPI = 2, |
| 76 | + |
| 77 | + /** SOPI mode (command and data on 8 lines). Note that the application must ensure the device is in SOPI mode. */ |
| 78 | + SPI_FLASH_PROTOCOL_SOPI = 3, |
| 79 | + |
| 80 | + /** DOPI mode (command and data on 8 lines, dual data rate). Note that the application must ensure the device is in DOPI mode. */ |
| 81 | + SPI_FLASH_PROTOCOL_DOPI = 4, |
| 82 | +} spi_flash_protocol_t; |
| 83 | + |
| 84 | +/** Number of bytes in the address. */ |
| 85 | +typedef enum e_spi_flash_address_bytes |
| 86 | +{ |
| 87 | + SPI_FLASH_ADDRESS_BYTES_3 = 2, ///< 3 address bytes |
| 88 | + |
| 89 | + /** 4 address bytes with standard commands. If this option is selected, the application must issue the EN4B |
| 90 | + * command using @ref spi_flash_api_t::directWrite() if required by the device. */ |
| 91 | + SPI_FLASH_ADDRESS_BYTES_4 = 3, |
| 92 | + |
| 93 | + /** 4 address bytes using standard 4-byte command set. */ |
| 94 | + SPI_FLASH_ADDRESS_BYTES_4_4BYTE_READ_CODE = 0x13, |
| 95 | +} spi_flash_address_bytes_t; |
| 96 | + |
| 97 | +/** Number of data lines used. */ |
| 98 | +typedef enum e_spi_flash_data_lines |
| 99 | +{ |
| 100 | + SPI_FLASH_DATA_LINES_1 = 0, ///< 1 data line |
| 101 | + SPI_FLASH_DATA_LINES_2 = 1, ///< 2 data lines |
| 102 | + SPI_FLASH_DATA_LINES_4 = 2, ///< 4 data lines |
| 103 | +} spi_flash_data_lines_t; |
| 104 | + |
| 105 | +/** Number of dummy cycles for fast read operations. */ |
| 106 | +typedef enum e_spi_flash_dummy_clocks |
| 107 | +{ |
| 108 | + /** Default is 6 clocks for Fast Read Quad I/O, 4 clocks for Fast Read Dual I/O, and 8 clocks for other |
| 109 | + * fast read instructions including Fast Read Quad Output, Fast Read Dual Output, and Fast Read. */ |
| 110 | + SPI_FLASH_DUMMY_CLOCKS_DEFAULT, |
| 111 | + SPI_FLASH_DUMMY_CLOCKS_3, ///< 3 dummy clocks |
| 112 | + SPI_FLASH_DUMMY_CLOCKS_4, ///< 4 dummy clocks |
| 113 | + SPI_FLASH_DUMMY_CLOCKS_5, ///< 5 dummy clocks |
| 114 | + SPI_FLASH_DUMMY_CLOCKS_6, ///< 6 dummy clocks |
| 115 | + SPI_FLASH_DUMMY_CLOCKS_7, ///< 7 dummy clocks |
| 116 | + SPI_FLASH_DUMMY_CLOCKS_8, ///< 8 dummy clocks |
| 117 | + SPI_FLASH_DUMMY_CLOCKS_9, ///< 9 dummy clocks |
| 118 | + SPI_FLASH_DUMMY_CLOCKS_10, ///< 10 dummy clocks |
| 119 | + SPI_FLASH_DUMMY_CLOCKS_11, ///< 11 dummy clocks |
| 120 | + SPI_FLASH_DUMMY_CLOCKS_12, ///< 12 dummy clocks |
| 121 | + SPI_FLASH_DUMMY_CLOCKS_13, ///< 13 dummy clocks |
| 122 | + SPI_FLASH_DUMMY_CLOCKS_14, ///< 14 dummy clocks |
| 123 | + SPI_FLASH_DUMMY_CLOCKS_15, ///< 15 dummy clocks |
| 124 | + SPI_FLASH_DUMMY_CLOCKS_16, ///< 16 dummy clocks |
| 125 | + SPI_FLASH_DUMMY_CLOCKS_17, ///< 17 dummy clocks |
| 126 | +} spi_flash_dummy_clocks_t; |
| 127 | + |
| 128 | +/** Direct Read and Write direction */ |
| 129 | +typedef enum e_spi_flash_direct_transfer_dir_option |
| 130 | +{ |
| 131 | + SPI_FLASH_DIRECT_TRANSFER_DIR_READ = 0x0, |
| 132 | + SPI_FLASH_DIRECT_TRANSFER_DIR_WRITE = 0x1 |
| 133 | +} spi_flash_direct_transfer_dir_t; |
| 134 | + |
| 135 | +/** Structure to define an erase command and associated erase size. */ |
| 136 | +typedef struct st_spi_flash_erase_command |
| 137 | +{ |
| 138 | + uint16_t command; ///< Erase command |
| 139 | + uint32_t size; ///< Size of erase for associated command, set to SPI_FLASH_ERASE_SIZE_CHIP_ERASE for chip erase |
| 140 | +} spi_flash_erase_command_t; |
| 141 | + |
| 142 | +/** Structure to define a direct transfer. */ |
| 143 | +typedef struct st_spi_flash_direct_transfer |
| 144 | +{ |
| 145 | + uint32_t address; ///< Starting address |
| 146 | + uint32_t data; ///< Data |
| 147 | + uint16_t command; ///< Transfer command |
| 148 | + uint8_t dummy_cycles; ///< Number of dummy cycles |
| 149 | + uint8_t command_length; ///< Command length |
| 150 | + uint8_t address_length; ///< Address lengrh |
| 151 | + uint8_t data_length; ///< Data length |
| 152 | +} spi_flash_direct_transfer_t; |
| 153 | + |
| 154 | +/** User configuration structure used by the open function */ |
| 155 | +typedef struct st_spi_flash_cfg |
| 156 | +{ |
| 157 | + spi_flash_protocol_t spi_protocol; ///< Initial SPI protocol. SPI protocol can be changed in @ref spi_flash_api_t::spiProtocolSet. |
| 158 | + spi_flash_read_mode_t read_mode; ///< Read mode |
| 159 | + spi_flash_address_bytes_t address_bytes; ///< Number of bytes used to represent the address |
| 160 | + spi_flash_dummy_clocks_t dummy_clocks; ///< Number of dummy clocks to use for fast read operations |
| 161 | + |
| 162 | + /** Number of lines used to send address for page program command. This should either be 1 or match the number of lines used in |
| 163 | + * the selected read mode. */ |
| 164 | + spi_flash_data_lines_t page_program_address_lines; |
| 165 | + uint8_t write_status_bit; ///< Which bit determines write status |
| 166 | + uint8_t write_enable_bit; ///< Which bit determines write status |
| 167 | + uint32_t page_size_bytes; ///< Page size in bytes (maximum number of bytes for page program). Used to specify single continuous write size (bytes) in case of OSPI RAM. |
| 168 | + uint8_t page_program_command; ///< Page program command |
| 169 | + uint8_t write_enable_command; ///< Command to enable write or erase, typically 0x06 |
| 170 | + uint8_t status_command; ///< Command to read the write status |
| 171 | + uint8_t read_command; ///< Read command - OSPI SPI mode only |
| 172 | + uint8_t xip_enter_command; ///< Command to enter XIP mode |
| 173 | + uint8_t xip_exit_command; ///< Command to exit XIP mode |
| 174 | + uint8_t erase_command_list_length; ///< Length of erase command list |
| 175 | + spi_flash_erase_command_t const * p_erase_command_list; ///< List of all erase commands and associated sizes |
| 176 | + void const * p_extend; ///< Pointer to implementation specific extended configurations |
| 177 | +} spi_flash_cfg_t; |
| 178 | + |
| 179 | +/** SPI flash control block. Allocate an instance specific control block to pass into the SPI flash API calls. |
| 180 | + * @par Implemented as |
| 181 | + * - qspi_instance_ctrl_t |
| 182 | + * - ospi_instance_ctrl_t |
| 183 | + */ |
| 184 | +typedef void spi_flash_ctrl_t; |
| 185 | + |
| 186 | +/** Status. */ |
| 187 | +typedef struct st_spi_flash_status |
| 188 | +{ |
| 189 | + /** Whether or not a write is in progress. This is determined by reading the @ref spi_flash_cfg_t::write_status_bit |
| 190 | + * from the @ref spi_flash_cfg_t::status_command. */ |
| 191 | + bool write_in_progress; |
| 192 | +} spi_flash_status_t; |
| 193 | + |
| 194 | +/** SPI flash implementations follow this API. */ |
| 195 | +typedef struct st_spi_flash_api |
| 196 | +{ |
| 197 | + /** Open the SPI flash driver module. |
| 198 | + * @par Implemented as |
| 199 | + * - @ref R_OSPI_Open() |
| 200 | + * - @ref R_QSPI_Open() |
| 201 | + * |
| 202 | + * @param[in] p_ctrl Pointer to a driver handle |
| 203 | + * @param[in] p_cfg Pointer to a configuration structure |
| 204 | + **/ |
| 205 | + fsp_err_t (* open)(spi_flash_ctrl_t * p_ctrl, spi_flash_cfg_t const * const p_cfg); |
| 206 | + |
| 207 | + /** Write raw data to the SPI flash. |
| 208 | + * @par Implemented as |
| 209 | + * - @ref R_OSPI_DirectWrite() |
| 210 | + * - @ref R_QSPI_DirectWrite() |
| 211 | + * |
| 212 | + * @param[in] p_ctrl Pointer to a driver handle |
| 213 | + * @param[in] p_src Pointer to raw data to write, must include any required command/address |
| 214 | + * @param[in] bytes Number of bytes to write |
| 215 | + * @param[in] read_after_write If true, the slave select remains asserted and the peripheral does not return |
| 216 | + * to direct communications mode. If false, the slave select is deasserted and |
| 217 | + * memory mapped access is possible after this function returns if the device |
| 218 | + * is not busy. |
| 219 | + **/ |
| 220 | + fsp_err_t (* directWrite)(spi_flash_ctrl_t * p_ctrl, uint8_t const * const p_src, uint32_t const bytes, |
| 221 | + bool const read_after_write); |
| 222 | + |
| 223 | + /** Read raw data from the SPI flash. Must follow a call to @ref spi_flash_api_t::directWrite. |
| 224 | + * @par Implemented as |
| 225 | + * - @ref R_OSPI_DirectRead() |
| 226 | + * - @ref R_QSPI_DirectRead() |
| 227 | + * |
| 228 | + * @param[in] p_ctrl Pointer to a driver handle |
| 229 | + * @param[out] p_dest Pointer to read raw data into |
| 230 | + * @param[in] bytes Number of bytes to read |
| 231 | + **/ |
| 232 | + fsp_err_t (* directRead)(spi_flash_ctrl_t * p_ctrl, uint8_t * const p_dest, uint32_t const bytes); |
| 233 | + |
| 234 | + /** Direct Read/Write raw data to the SPI flash. |
| 235 | + * @par Implemented as |
| 236 | + * - @ref R_OSPI_DirectTransfer() |
| 237 | + * - @ref R_QSPI_DirectTransfer() |
| 238 | + * |
| 239 | + * @param[in] p_ctrl Pointer to a driver handle |
| 240 | + * @param[in] p_data Pointer to command, address and data values and lengths |
| 241 | + * @param[in] direction Direct Read/Write |
| 242 | + **/ |
| 243 | + fsp_err_t (* directTransfer)(spi_flash_ctrl_t * p_ctrl, spi_flash_direct_transfer_t * const p_transfer, |
| 244 | + spi_flash_direct_transfer_dir_t direction); |
| 245 | + |
| 246 | + /** Change the SPI protocol in the driver. The application must change the SPI protocol on the device. |
| 247 | + * @par Implemented as |
| 248 | + * - @ref R_OSPI_SpiProtocolSet() |
| 249 | + * - @ref R_QSPI_SpiProtocolSet() |
| 250 | + * |
| 251 | + * @param[in] p_ctrl Pointer to a driver handle |
| 252 | + * @param[in] spi_protocol Desired SPI protocol |
| 253 | + **/ |
| 254 | + fsp_err_t (* spiProtocolSet)(spi_flash_ctrl_t * p_ctrl, spi_flash_protocol_t spi_protocol); |
| 255 | + |
| 256 | + /** Program a page of data to the flash. |
| 257 | + * @par Implemented as |
| 258 | + * - @ref R_OSPI_Write() |
| 259 | + * - @ref R_QSPI_Write() |
| 260 | + * |
| 261 | + * @param[in] p_ctrl Pointer to a driver handle |
| 262 | + * @param[in] p_src The memory address of the data to write to the flash device |
| 263 | + * @param[in] p_dest The location in the flash device address space to write the data to |
| 264 | + * @param[in] byte_count The number of bytes to write |
| 265 | + **/ |
| 266 | + fsp_err_t (* write)(spi_flash_ctrl_t * p_ctrl, uint8_t const * const p_src, uint8_t * const p_dest, |
| 267 | + uint32_t byte_count); |
| 268 | + |
| 269 | + /** Erase a certain number of bytes of the flash. |
| 270 | + * @par Implemented as |
| 271 | + * - @ref R_OSPI_Erase() |
| 272 | + * - @ref R_QSPI_Erase() |
| 273 | + * |
| 274 | + * @param[in] p_ctrl Pointer to a driver handle |
| 275 | + * @param[in] p_device_address The location in the flash device address space to start the erase from |
| 276 | + * @param[in] byte_count The number of bytes to erase. Set to SPI_FLASH_ERASE_SIZE_CHIP_ERASE to erase entire |
| 277 | + * chip. |
| 278 | + **/ |
| 279 | + fsp_err_t (* erase)(spi_flash_ctrl_t * p_ctrl, uint8_t * const p_device_address, uint32_t byte_count); |
| 280 | + |
| 281 | + /** Get the write or erase status of the flash. |
| 282 | + * @par Implemented as |
| 283 | + * - @ref R_OSPI_StatusGet() |
| 284 | + * - @ref R_QSPI_StatusGet() |
| 285 | + * |
| 286 | + * @param[in] p_ctrl Pointer to a driver handle |
| 287 | + * @param[out] p_status Current status of the SPI flash device stored here. |
| 288 | + **/ |
| 289 | + fsp_err_t (* statusGet)(spi_flash_ctrl_t * p_ctrl, spi_flash_status_t * const p_status); |
| 290 | + |
| 291 | + /** Enter XIP mode. |
| 292 | + * @par Implemented as |
| 293 | + * - @ref R_OSPI_XipEnter() |
| 294 | + * - @ref R_QSPI_XipEnter() |
| 295 | + * |
| 296 | + * @param[in] p_ctrl Pointer to a driver handle |
| 297 | + **/ |
| 298 | + fsp_err_t (* xipEnter)(spi_flash_ctrl_t * p_ctrl); |
| 299 | + |
| 300 | + /** Exit XIP mode. |
| 301 | + * @par Implemented as |
| 302 | + * - @ref R_OSPI_XipExit() |
| 303 | + * - @ref R_QSPI_XipExit() |
| 304 | + * |
| 305 | + * @param[in] p_ctrl Pointer to a driver handle |
| 306 | + **/ |
| 307 | + fsp_err_t (* xipExit)(spi_flash_ctrl_t * p_ctrl); |
| 308 | + |
| 309 | + /** Select the bank to access. See implementation for details. |
| 310 | + * @par Implemented as |
| 311 | + * - @ref R_OSPI_BankSet() |
| 312 | + * - @ref R_QSPI_BankSet() |
| 313 | + * |
| 314 | + * @param[in] p_ctrl Pointer to a driver handle |
| 315 | + * @param[in] bank The bank number |
| 316 | + **/ |
| 317 | + fsp_err_t (* bankSet)(spi_flash_ctrl_t * p_ctrl, uint32_t bank); |
| 318 | + |
| 319 | + /** AutoCalibrate the SPI flash driver module. Expected to be used when auto-calibrating OSPI RAM device. |
| 320 | + * @par Implemented as |
| 321 | + * - @ref R_OSPI_AutoCalibrate() |
| 322 | + * - @ref R_QSPI_AutoCalibrate() |
| 323 | + * |
| 324 | + * @param[in] p_ctrl Pointer to a driver handle |
| 325 | + **/ |
| 326 | + fsp_err_t (* autoCalibrate)(spi_flash_ctrl_t * p_ctrl); |
| 327 | + |
| 328 | + /** Close the SPI flash driver module. |
| 329 | + * @par Implemented as |
| 330 | + * - @ref R_OSPI_Close() |
| 331 | + * - @ref R_QSPI_Close() |
| 332 | + * |
| 333 | + * @param[in] p_ctrl Pointer to a driver handle |
| 334 | + **/ |
| 335 | + fsp_err_t (* close)(spi_flash_ctrl_t * p_ctrl); |
| 336 | +} spi_flash_api_t; |
| 337 | + |
| 338 | +/** This structure encompasses everything that is needed to use an instance of this interface. */ |
| 339 | +typedef struct st_spi_flash_instance |
| 340 | +{ |
| 341 | + spi_flash_ctrl_t * p_ctrl; ///< Pointer to the control structure for this instance |
| 342 | + spi_flash_cfg_t const * p_cfg; ///< Pointer to the configuration structure for this instance |
| 343 | + spi_flash_api_t const * p_api; ///< Pointer to the API structure for this instance |
| 344 | +} spi_flash_instance_t; |
| 345 | + |
| 346 | +/* Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */ |
| 347 | +FSP_FOOTER |
| 348 | + |
| 349 | +#endif |
| 350 | + |
| 351 | +/*******************************************************************************************************************//** |
| 352 | + * @} (end addtogroup SPI_FLASH_API) |
| 353 | + **********************************************************************************************************************/ |
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