123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186 |
- /******************************************************************************
- * Flash api for NodeMCU
- * NodeMCU Team
- * 2014-12-31
- *******************************************************************************/
- #include "user_config.h"
- #include "flash_api.h"
- #include "spi_flash.h"
- #include <stdio.h>
- #include <string.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 != 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
- }
- static SPIFlashInfo spi_flash_info = {0};
- SPIFlashInfo *flash_rom_getinfo(void)
- {
- if (spi_flash_info.entry_point == 0) {
- 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;
- }
- uint16_t flash_rom_get_sec_num(void)
- {
- return ( flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE) );
- }
- uint8_t flash_rom_get_mode(void)
- {
- uint8_t mode = flash_rom_getinfo()->mode;
- switch (mode)
- {
- // Reserved for future use
- case MODE_QIO:
- break;
- case MODE_QOUT:
- break;
- case MODE_DIO:
- break;
- case MODE_DOUT:
- break;
- }
- return mode;
- }
- uint32_t flash_rom_get_speed(void)
- {
- uint32_t speed = 0;
- uint8_t spi_speed = flash_rom_getinfo()->speed;
- switch (spi_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;
- }
- 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 ];
- }
|