flash_api.c 9.4 KB

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  1. /******************************************************************************
  2. * Flash api for NodeMCU
  3. * NodeMCU Team
  4. * 2014-12-31
  5. *******************************************************************************/
  6. #include "user_config.h"
  7. #include "flash_api.h"
  8. #include "spi_flash.h"
  9. #include "c_stdio.h"
  10. uint32_t flash_detect_size_byte(void)
  11. {
  12. // enable operations on whole physical flash, SDK might have restricted
  13. // the flash size already
  14. extern SpiFlashChip * flashchip;
  15. uint32 orig_chip_size = flashchip->chip_size;
  16. flashchip->chip_size = FLASH_SIZE_16MBYTE;
  17. #define FLASH_BUFFER_SIZE_DETECT 32
  18. uint32_t dummy_size = FLASH_SIZE_256KBYTE;
  19. uint8_t data_orig[FLASH_BUFFER_SIZE_DETECT] ICACHE_STORE_ATTR = {0};
  20. uint8_t data_new[FLASH_BUFFER_SIZE_DETECT] ICACHE_STORE_ATTR = {0};
  21. if (SPI_FLASH_RESULT_OK == flash_read(0, (uint32 *)data_orig, FLASH_BUFFER_SIZE_DETECT))
  22. {
  23. dummy_size = FLASH_SIZE_256KBYTE;
  24. while ((dummy_size < FLASH_SIZE_16MBYTE) &&
  25. (SPI_FLASH_RESULT_OK == flash_read(dummy_size, (uint32 *)data_new, FLASH_BUFFER_SIZE_DETECT)) &&
  26. (0 != os_memcmp(data_orig, data_new, FLASH_BUFFER_SIZE_DETECT))
  27. )
  28. {
  29. dummy_size *= 2;
  30. }
  31. };
  32. // revert temporary setting
  33. flashchip->chip_size = orig_chip_size;
  34. return dummy_size;
  35. #undef FLASH_BUFFER_SIZE_DETECT
  36. }
  37. SPIFlashInfo flash_rom_getinfo(void)
  38. {
  39. volatile SPIFlashInfo spi_flash_info ICACHE_STORE_ATTR;
  40. spi_flash_read(0, (uint32 *)(& spi_flash_info), sizeof(spi_flash_info));
  41. return spi_flash_info;
  42. }
  43. uint8_t flash_rom_get_size_type(void)
  44. {
  45. return flash_rom_getinfo().size;
  46. }
  47. uint32_t flash_rom_get_size_byte(void)
  48. {
  49. static uint32_t flash_size = 0;
  50. if (flash_size == 0)
  51. {
  52. switch (flash_rom_getinfo().size)
  53. {
  54. case SIZE_2MBIT:
  55. // 2Mbit, 256kByte
  56. flash_size = 256 * 1024;
  57. break;
  58. case SIZE_4MBIT:
  59. // 4Mbit, 512kByte
  60. flash_size = 512 * 1024;
  61. break;
  62. case SIZE_8MBIT:
  63. // 8Mbit, 1MByte
  64. flash_size = 1 * 1024 * 1024;
  65. break;
  66. case SIZE_16MBIT:
  67. // 16Mbit, 2MByte
  68. flash_size = 2 * 1024 * 1024;
  69. break;
  70. case SIZE_32MBIT:
  71. // 32Mbit, 4MByte
  72. flash_size = 4 * 1024 * 1024;
  73. break;
  74. case SIZE_16MBIT_8M_8M:
  75. // 16Mbit, 2MByte
  76. flash_size = 2 * 1024 * 1024;
  77. break;
  78. case SIZE_32MBIT_8M_8M:
  79. // 32Mbit, 4MByte
  80. flash_size = 4 * 1024 * 1024;
  81. break;
  82. case SIZE_32MBIT_16M_16M:
  83. // 32Mbit, 4MByte
  84. flash_size = 4 * 1024 * 1024;
  85. break;
  86. case SIZE_64MBIT:
  87. // 64Mbit, 8MByte
  88. flash_size = 8 * 1024 * 1024;
  89. break;
  90. case SIZE_128MBIT:
  91. // 128Mbit, 16MByte
  92. flash_size = 16 * 1024 * 1024;
  93. break;
  94. default:
  95. // Unknown flash size, fall back mode.
  96. flash_size = 512 * 1024;
  97. break;
  98. }
  99. }
  100. return flash_size;
  101. }
  102. bool flash_rom_set_size_type(uint8_t size)
  103. {
  104. // Dangerous, here are dinosaur infested!!!!!
  105. // Reboot required!!!
  106. // If you don't know what you're doing, your nodemcu may turn into stone ...
  107. NODE_DBG("\nBEGIN SET FLASH HEADER\n");
  108. uint8_t data[SPI_FLASH_SEC_SIZE] ICACHE_STORE_ATTR;
  109. if (SPI_FLASH_RESULT_OK == spi_flash_read(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
  110. {
  111. ((SPIFlashInfo *)(&data[0]))->size = size;
  112. if (SPI_FLASH_RESULT_OK == spi_flash_erase_sector(0 * SPI_FLASH_SEC_SIZE))
  113. {
  114. NODE_DBG("\nERASE SUCCESS\n");
  115. }
  116. if (SPI_FLASH_RESULT_OK == spi_flash_write(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
  117. {
  118. NODE_DBG("\nWRITE SUCCESS, %u\n", size);
  119. }
  120. }
  121. NODE_DBG("\nEND SET FLASH HEADER\n");
  122. return true;
  123. }
  124. bool flash_rom_set_size_byte(uint32_t size)
  125. {
  126. // Dangerous, here are dinosaur infested!!!!!
  127. // Reboot required!!!
  128. // If you don't know what you're doing, your nodemcu may turn into stone ...
  129. bool result = true;
  130. uint32_t flash_size = 0;
  131. switch (size)
  132. {
  133. case 256 * 1024:
  134. // 2Mbit, 256kByte
  135. flash_size = SIZE_2MBIT;
  136. flash_rom_set_size_type(flash_size);
  137. break;
  138. case 512 * 1024:
  139. // 4Mbit, 512kByte
  140. flash_size = SIZE_4MBIT;
  141. flash_rom_set_size_type(flash_size);
  142. break;
  143. case 1 * 1024 * 1024:
  144. // 8Mbit, 1MByte
  145. flash_size = SIZE_8MBIT;
  146. flash_rom_set_size_type(flash_size);
  147. break;
  148. case 2 * 1024 * 1024:
  149. // 16Mbit, 2MByte
  150. flash_size = SIZE_16MBIT;
  151. flash_rom_set_size_type(flash_size);
  152. break;
  153. case 4 * 1024 * 1024:
  154. // 32Mbit, 4MByte
  155. flash_size = SIZE_32MBIT;
  156. flash_rom_set_size_type(flash_size);
  157. break;
  158. case 8 * 1024 * 1024:
  159. // 64Mbit, 8MByte
  160. flash_size = SIZE_64MBIT;
  161. flash_rom_set_size_type(flash_size);
  162. break;
  163. case 16 * 1024 * 1024:
  164. // 128Mbit, 16MByte
  165. flash_size = SIZE_128MBIT;
  166. flash_rom_set_size_type(flash_size);
  167. break;
  168. default:
  169. // Unknown flash size.
  170. result = false;
  171. break;
  172. }
  173. return result;
  174. }
  175. uint16_t flash_rom_get_sec_num(void)
  176. {
  177. //static uint16_t sec_num = 0;
  178. // return flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE);
  179. // c_printf("\nflash_rom_get_size_byte()=%d\n", ( flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE) ));
  180. // if( sec_num == 0 )
  181. //{
  182. // sec_num = 4 * 1024 * 1024 / (SPI_FLASH_SEC_SIZE);
  183. //}
  184. //return sec_num;
  185. return ( flash_rom_get_size_byte() / (SPI_FLASH_SEC_SIZE) );
  186. }
  187. uint8_t flash_rom_get_mode(void)
  188. {
  189. SPIFlashInfo spi_flash_info = flash_rom_getinfo();
  190. switch (spi_flash_info.mode)
  191. {
  192. // Reserved for future use
  193. case MODE_QIO:
  194. break;
  195. case MODE_QOUT:
  196. break;
  197. case MODE_DIO:
  198. break;
  199. case MODE_DOUT:
  200. break;
  201. }
  202. return spi_flash_info.mode;
  203. }
  204. uint32_t flash_rom_get_speed(void)
  205. {
  206. uint32_t speed = 0;
  207. SPIFlashInfo spi_flash_info = flash_rom_getinfo();
  208. switch (spi_flash_info.speed)
  209. {
  210. case SPEED_40MHZ:
  211. // 40MHz
  212. speed = 40000000;
  213. break;
  214. case SPEED_26MHZ:
  215. //26.7MHz
  216. speed = 26700000;
  217. break;
  218. case SPEED_20MHZ:
  219. // 20MHz
  220. speed = 20000000;
  221. break;
  222. case SPEED_80MHZ:
  223. //80MHz
  224. speed = 80000000;
  225. break;
  226. }
  227. return speed;
  228. }
  229. bool flash_rom_set_speed(uint32_t speed)
  230. {
  231. // Dangerous, here are dinosaur infested!!!!!
  232. // Reboot required!!!
  233. // If you don't know what you're doing, your nodemcu may turn into stone ...
  234. NODE_DBG("\nBEGIN SET FLASH HEADER\n");
  235. uint8_t data[SPI_FLASH_SEC_SIZE] ICACHE_STORE_ATTR;
  236. uint8_t speed_type = SPEED_40MHZ;
  237. if (speed < 26700000)
  238. {
  239. speed_type = SPEED_20MHZ;
  240. }
  241. else if (speed < 40000000)
  242. {
  243. speed_type = SPEED_26MHZ;
  244. }
  245. else if (speed < 80000000)
  246. {
  247. speed_type = SPEED_40MHZ;
  248. }
  249. else if (speed >= 80000000)
  250. {
  251. speed_type = SPEED_80MHZ;
  252. }
  253. if (SPI_FLASH_RESULT_OK == spi_flash_read(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
  254. {
  255. ((SPIFlashInfo *)(&data[0]))->speed = speed_type;
  256. if (SPI_FLASH_RESULT_OK == spi_flash_erase_sector(0 * SPI_FLASH_SEC_SIZE))
  257. {
  258. NODE_DBG("\nERASE SUCCESS\n");
  259. }
  260. if (SPI_FLASH_RESULT_OK == spi_flash_write(0, (uint32 *)data, SPI_FLASH_SEC_SIZE))
  261. {
  262. NODE_DBG("\nWRITE SUCCESS, %u\n", speed_type);
  263. }
  264. }
  265. NODE_DBG("\nEND SET FLASH HEADER\n");
  266. return true;
  267. }
  268. uint8_t byte_of_aligned_array(const uint8_t *aligned_array, uint32_t index)
  269. {
  270. if ( (((uint32_t)aligned_array) % 4) != 0 )
  271. {
  272. NODE_DBG("aligned_array is not 4-byte aligned.\n");
  273. return 0;
  274. }
  275. volatile uint32_t v = ((uint32_t *)aligned_array)[ index / 4 ];
  276. uint8_t *p = (uint8_t *) (&v);
  277. return p[ (index % 4) ];
  278. }
  279. uint16_t word_of_aligned_array(const uint16_t *aligned_array, uint32_t index)
  280. {
  281. if ( (((uint32_t)aligned_array) % 4) != 0 )
  282. {
  283. NODE_DBG("aligned_array is not 4-byte aligned.\n");
  284. return 0;
  285. }
  286. volatile uint32_t v = ((uint32_t *)aligned_array)[ index / 2 ];
  287. uint16_t *p = (uint16_t *) (&v);
  288. return (index % 2 == 0) ? p[ 0 ] : p[ 1 ];
  289. // return p[ (index % 2) ]; // -- why error???
  290. // (byte_of_aligned_array((uint8_t *)aligned_array, index * 2 + 1) << 8) | byte_of_aligned_array((uint8_t *)aligned_array, index * 2);
  291. }
  292. // uint8_t flash_rom_get_checksum(void)
  293. // {
  294. // // SPIFlashInfo spi_flash_info ICACHE_STORE_ATTR = flash_rom_getinfo();
  295. // // uint32_t address = sizeof(spi_flash_info) + spi_flash_info.segment_size;
  296. // // uint32_t address_aligned_4bytes = (address + 3) & 0xFFFFFFFC;
  297. // // uint8_t buffer[64] = {0};
  298. // // spi_flash_read(address, (uint32 *) buffer, 64);
  299. // // uint8_t i = 0;
  300. // // c_printf("\nBEGIN DUMP\n");
  301. // // for (i = 0; i < 64; i++)
  302. // // {
  303. // // c_printf("%02x," , buffer[i]);
  304. // // }
  305. // // i = (address + 0x10) & 0x10 - 1;
  306. // // c_printf("\nSIZE:%d CHECK SUM:%02x\n", spi_flash_info.segment_size, buffer[i]);
  307. // // c_printf("\nEND DUMP\n");
  308. // // return buffer[0];
  309. // return 0;
  310. // }
  311. // uint8_t flash_rom_calc_checksum(void)
  312. // {
  313. // return 0;
  314. // }