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- /******************************************************************************
- * Flash api for NodeMCU
- * NodeMCU Team
- * 2014-12-31
- *******************************************************************************/
- #include "user_config.h"
- #include "flash_api.h"
- #include "spi_flash.h"
- #include "c_stdio.h"
- uint32_t flash_detect_size_byte(void)
- {
- // enable operations on whole physical flash, SDK might have restricted
- // the flash size already
- extern SpiFlashChip * flashchip;
- uint32 orig_chip_size = flashchip->chip_size;
- flashchip->chip_size = FLASH_SIZE_16MBYTE;
- #define FLASH_BUFFER_SIZE_DETECT 32
- uint32_t dummy_size = FLASH_SIZE_256KBYTE;
- uint8_t data_orig[FLASH_BUFFER_SIZE_DETECT] ICACHE_STORE_ATTR = {0};
- uint8_t data_new[FLASH_BUFFER_SIZE_DETECT] ICACHE_STORE_ATTR = {0};
- if (SPI_FLASH_RESULT_OK == flash_read(0, (uint32 *)data_orig, FLASH_BUFFER_SIZE_DETECT))
- {
- dummy_size = FLASH_SIZE_256KBYTE;
- while ((dummy_size < FLASH_SIZE_16MBYTE) &&
- (SPI_FLASH_RESULT_OK == flash_read(dummy_size, (uint32 *)data_new, FLASH_BUFFER_SIZE_DETECT)) &&
- (0 != os_memcmp(data_orig, data_new, FLASH_BUFFER_SIZE_DETECT))
- )
- {
- dummy_size *= 2;
- }
- };
- // revert temporary setting
- flashchip->chip_size = orig_chip_size;
- return dummy_size;
- #undef FLASH_BUFFER_SIZE_DETECT
- }
- SPIFlashInfo flash_rom_getinfo(void)
- {
- volatile SPIFlashInfo spi_flash_info ICACHE_STORE_ATTR;
- spi_flash_read(0, (uint32 *)(& spi_flash_info), sizeof(spi_flash_info));
- return spi_flash_info;
- }
- uint8_t flash_rom_get_size_type(void)
- {
- return flash_rom_getinfo().size;
- }
- uint32_t flash_rom_get_size_byte(void)
- {
- static uint32_t flash_size = 0;
- if (flash_size == 0)
- {
- switch (flash_rom_getinfo().size)
- {
- case SIZE_2MBIT:
- // 2Mbit, 256kByte
- flash_size = 256 * 1024;
- break;
- case SIZE_4MBIT:
- // 4Mbit, 512kByte
- flash_size = 512 * 1024;
- break;
- case SIZE_8MBIT:
- // 8Mbit, 1MByte
- flash_size = 1 * 1024 * 1024;
- break;
- case SIZE_16MBIT:
- // 16Mbit, 2MByte
- flash_size = 2 * 1024 * 1024;
- break;
- case SIZE_32MBIT:
- // 32Mbit, 4MByte
- flash_size = 4 * 1024 * 1024;
- break;
- case SIZE_16MBIT_8M_8M:
- // 16Mbit, 2MByte
- flash_size = 2 * 1024 * 1024;
- break;
- case SIZE_32MBIT_8M_8M:
- // 32Mbit, 4MByte
- flash_size = 4 * 1024 * 1024;
- break;
- case SIZE_32MBIT_16M_16M:
- // 32Mbit, 4MByte
- flash_size = 4 * 1024 * 1024;
- break;
- case SIZE_64MBIT:
- // 64Mbit, 8MByte
- flash_size = 8 * 1024 * 1024;
- break;
- case SIZE_128MBIT:
- // 128Mbit, 16MByte
- flash_size = 16 * 1024 * 1024;
- break;
- default:
- // Unknown flash size, fall back mode.
- flash_size = 512 * 1024;
- break;
- }
- }
- return flash_size;
- }
- bool flash_rom_set_size_type(uint8_t size)
- {
- // Dangerous, here are dinosaur infested!!!!!
- // Reboot required!!!
- // If you don't know what you're doing, your nodemcu may turn into stone ...
- NODE_DBG("\nBEGIN SET FLASH HEADER\n");
- uint8_t data[SPI_FLASH_SEC_SIZE] ICACHE_STORE_ATTR;
- if (SPI_FLASH_RESULT_OK == spi_flash_read(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
- {
- ((SPIFlashInfo *)(&data[0]))->size = size;
- if (SPI_FLASH_RESULT_OK == spi_flash_erase_sector(0 * SPI_FLASH_SEC_SIZE))
- {
- NODE_DBG("\nERASE SUCCESS\n");
- }
- if (SPI_FLASH_RESULT_OK == spi_flash_write(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
- {
- NODE_DBG("\nWRITE SUCCESS, %u\n", size);
- }
- }
- NODE_DBG("\nEND SET FLASH HEADER\n");
- return true;
- }
- bool flash_rom_set_size_byte(uint32_t size)
- {
- // Dangerous, here are dinosaur infested!!!!!
- // Reboot required!!!
- // If you don't know what you're doing, your nodemcu may turn into stone ...
- bool result = true;
- uint32_t flash_size = 0;
- switch (size)
- {
- case 256 * 1024:
- // 2Mbit, 256kByte
- flash_size = SIZE_2MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 512 * 1024:
- // 4Mbit, 512kByte
- flash_size = SIZE_4MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 1 * 1024 * 1024:
- // 8Mbit, 1MByte
- flash_size = SIZE_8MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 2 * 1024 * 1024:
- // 16Mbit, 2MByte
- flash_size = SIZE_16MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 4 * 1024 * 1024:
- // 32Mbit, 4MByte
- flash_size = SIZE_32MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 8 * 1024 * 1024:
- // 64Mbit, 8MByte
- flash_size = SIZE_64MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- case 16 * 1024 * 1024:
- // 128Mbit, 16MByte
- flash_size = SIZE_128MBIT;
- flash_rom_set_size_type(flash_size);
- break;
- default:
- // Unknown flash size.
- result = false;
- break;
- }
- return result;
- }
- uint16_t flash_rom_get_sec_num(void)
- {
- //static uint16_t sec_num = 0;
- // return flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE);
- // c_printf("\nflash_rom_get_size_byte()=%d\n", ( flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE) ));
- // if( sec_num == 0 )
- //{
- // sec_num = 4 * 1024 * 1024 / (SPI_FLASH_SEC_SIZE);
- //}
- //return sec_num;
- return ( flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE) );
- }
- uint8_t flash_rom_get_mode(void)
- {
- SPIFlashInfo spi_flash_info = flash_rom_getinfo();
- switch (spi_flash_info.mode)
- {
- // Reserved for future use
- case MODE_QIO:
- break;
- case MODE_QOUT:
- break;
- case MODE_DIO:
- break;
- case MODE_DOUT:
- break;
- }
- return spi_flash_info.mode;
- }
- uint32_t flash_rom_get_speed(void)
- {
- uint32_t speed = 0;
- SPIFlashInfo spi_flash_info = flash_rom_getinfo();
- switch (spi_flash_info.speed)
- {
- case SPEED_40MHZ:
- // 40MHz
- speed = 40000000;
- break;
- case SPEED_26MHZ:
- //26.7MHz
- speed = 26700000;
- break;
- case SPEED_20MHZ:
- // 20MHz
- speed = 20000000;
- break;
- case SPEED_80MHZ:
- //80MHz
- speed = 80000000;
- break;
- }
- return speed;
- }
- bool flash_rom_set_speed(uint32_t speed)
- {
- // Dangerous, here are dinosaur infested!!!!!
- // Reboot required!!!
- // If you don't know what you're doing, your nodemcu may turn into stone ...
- NODE_DBG("\nBEGIN SET FLASH HEADER\n");
- uint8_t data[SPI_FLASH_SEC_SIZE] ICACHE_STORE_ATTR;
- uint8_t speed_type = SPEED_40MHZ;
- if (speed < 26700000)
- {
- speed_type = SPEED_20MHZ;
- }
- else if (speed < 40000000)
- {
- speed_type = SPEED_26MHZ;
- }
- else if (speed < 80000000)
- {
- speed_type = SPEED_40MHZ;
- }
- else if (speed >= 80000000)
- {
- speed_type = SPEED_80MHZ;
- }
- if (SPI_FLASH_RESULT_OK == spi_flash_read(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
- {
- ((SPIFlashInfo *)(&data[0]))->speed = speed_type;
- if (SPI_FLASH_RESULT_OK == spi_flash_erase_sector(0 * SPI_FLASH_SEC_SIZE))
- {
- NODE_DBG("\nERASE SUCCESS\n");
- }
- if (SPI_FLASH_RESULT_OK == spi_flash_write(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
- {
- NODE_DBG("\nWRITE SUCCESS, %u\n", speed_type);
- }
- }
- NODE_DBG("\nEND SET FLASH HEADER\n");
- return true;
- }
- uint8_t byte_of_aligned_array(const uint8_t *aligned_array, uint32_t index)
- {
- if ( (((uint32_t)aligned_array) % 4) != 0 )
- {
- NODE_DBG("aligned_array is not 4-byte aligned.\n");
- return 0;
- }
- volatile uint32_t v = ((uint32_t *)aligned_array)[ index / 4 ];
- uint8_t *p = (uint8_t *) (&v);
- return p[ (index % 4) ];
- }
- uint16_t word_of_aligned_array(const uint16_t *aligned_array, uint32_t index)
- {
- if ( (((uint32_t)aligned_array) % 4) != 0 )
- {
- NODE_DBG("aligned_array is not 4-byte aligned.\n");
- return 0;
- }
- volatile uint32_t v = ((uint32_t *)aligned_array)[ index / 2 ];
- uint16_t *p = (uint16_t *) (&v);
- return (index % 2 == 0) ? p[ 0 ] : p[ 1 ];
- // return p[ (index % 2) ]; // -- why error???
- // (byte_of_aligned_array((uint8_t *)aligned_array, index * 2 + 1) << 8) | byte_of_aligned_array((uint8_t *)aligned_array, index * 2);
- }
- // uint8_t flash_rom_get_checksum(void)
- // {
- // // SPIFlashInfo spi_flash_info ICACHE_STORE_ATTR = flash_rom_getinfo();
- // // uint32_t address = sizeof(spi_flash_info) + spi_flash_info.segment_size;
- // // uint32_t address_aligned_4bytes = (address + 3) & 0xFFFFFFFC;
- // // uint8_t buffer[64] = {0};
- // // spi_flash_read(address, (uint32 *) buffer, 64);
- // // uint8_t i = 0;
- // // c_printf("\nBEGIN DUMP\n");
- // // for (i = 0; i < 64; i++)
- // // {
- // // c_printf("%02x," , buffer[i]);
- // // }
- // // i = (address + 0x10) & 0x10 - 1;
- // // c_printf("\nSIZE:%d CHECK SUM:%02x\n", spi_flash_info.segment_size, buffer[i]);
- // // c_printf("\nEND DUMP\n");
- // // return buffer[0];
- // return 0;
- // }
- // uint8_t flash_rom_calc_checksum(void)
- // {
- // return 0;
- // }
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