diff options
Diffstat (limited to 'board/st/u8500/cspsa_fp.c')
| -rw-r--r-- | board/st/u8500/cspsa_fp.c | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/board/st/u8500/cspsa_fp.c b/board/st/u8500/cspsa_fp.c deleted file mode 100644 index 9517f2762..000000000 --- a/board/st/u8500/cspsa_fp.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Martin Lundholm <martin.xa.lundholm@stericsson.com> for - * ST-Ericsson. - * - * License terms: GNU General Public License (GPL), version 2. - * - * cspsa_fp.c - * - * Implementation of CSPSA Fast Parameters. CSPSA is an acronym for Crash - * Safe Parameter Storage. - * - */ - -#include "cspsa_fp.h" -#include <malloc.h> -#include <part.h> - -/* -------------------------------------------------------------------------- */ - -#define CSPSA_HEADER_MAGIC 0x00415350 -#define CSPSA_HEADER_VERSION 2 - -/* -------------------------------------------------------------------------- */ - -struct cspsa_header { - u32 magic; - u32 version; - u32 index; - u32 flags; - u32 data_size; - u32 crc32_data; - u32 crc32_header; - u32 fast_parameter[CSPSA_NBR_OF_FAST_PARAMETERS]; - u32 reserved[4]; - u32 bbt_size; - u32 bbt[]; -}; - -/* -------------------------------------------------------------------------- */ - -/* - * CRC32 lookup table based on polynom 0x04C11DB7. Must use the same CRC32 - * algorithm as in main CSPSA implementation. - */ -static const u32 crc_table[256] = { - 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B, - 0x1A864DB2, 0x1E475005, 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, - 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD, 0x4C11DB70, 0x48D0C6C7, - 0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75, - 0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, - 0x709F7B7A, 0x745E66CD, 0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, - 0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 0xBE2B5B58, 0xBAEA46EF, - 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D, - 0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB, - 0xCEB42022, 0xCA753D95, 0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, - 0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 0x34867077, 0x30476DC0, - 0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072, - 0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4, - 0x0808D07D, 0x0CC9CDCA, 0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, - 0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02, 0x5E9F46BF, 0x5A5E5B08, - 0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA, - 0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC, - 0xB6238B25, 0xB2E29692, 0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, - 0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A, 0xE0B41DE7, 0xE4750050, - 0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2, - 0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34, - 0xDC3ABDED, 0xD8FBA05A, 0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, - 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB, 0x4F040D56, 0x4BC510E1, - 0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53, - 0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, - 0x3F9B762C, 0x3B5A6B9B, 0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, - 0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 0xF12F560E, 0xF5EE4BB9, - 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B, - 0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, - 0xCDA1F604, 0xC960EBB3, 0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, - 0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 0x9B3660C6, 0x9FF77D71, - 0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3, - 0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2, - 0x470CDD2B, 0x43CDC09C, 0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, - 0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24, 0x119B4BE9, 0x155A565E, - 0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC, - 0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A, - 0x2D15EBE3, 0x29D4F654, 0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, - 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C, 0xE3A1CBC1, 0xE760D676, - 0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4, - 0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662, - 0x933EB0BB, 0x97FFAD0C, 0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, - 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4, -}; - -static u32 cspsa_crc32_calc(u32 crc_value, uint8_t *data, u32 data_size) -{ - u32 i; - u32 j; - - crc_value = ~crc_value; - for (j = 0; j < data_size; j++) { - i = ((u32) (crc_value >> 24) ^ *data++) & 0xFF; - crc_value = (crc_value << 8) ^ crc_table[i]; - } - crc_value = ~crc_value; - - return crc_value; -} - -/* -------------------------------------------------------------------------- */ - -static u32 calc_crc32_header(struct cspsa_header *cspsa_header) -{ - u32 crc_value = CSPSA_HEADER_MAGIC; - - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->magic, - sizeof(cspsa_header->magic)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->version, - sizeof(cspsa_header->version)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->index, - sizeof(cspsa_header->index)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->flags, - sizeof(cspsa_header->flags)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->data_size, - sizeof(cspsa_header->data_size)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->crc32_data, - sizeof(cspsa_header->crc32_data)); - /* - Skip crc32_header. */ - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->fast_parameter, - sizeof(cspsa_header->fast_parameter)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->reserved, - sizeof(cspsa_header->reserved)); - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->bbt_size, - sizeof(cspsa_header->bbt_size)); - if (cspsa_header->bbt_size > 0) - crc_value = - cspsa_crc32_calc( - crc_value, - (u8 *) &cspsa_header->bbt, - cspsa_header->bbt_size); - - return crc_value; -} - -/* -------------------------------------------------------------------------- */ - -static int find_cspsa_area(block_dev_desc_t *block_dev, u32 *start_block, - u32 *size_in_blocks) { - u32 offset; - u32 size; - u32 loadaddr; - - if (get_entry_info_toc(block_dev, CSPSA_PARTITION_NAME, &offset, - &size, &loadaddr)) { - printf("find_cspsa_area: get_entry_info_toc failed\n"); - return 1; - } - (void) loadaddr; - - *start_block = offset / block_dev->blksz; - *size_in_blocks = (size / block_dev->blksz); - if ((*size_in_blocks < 2) || (size % block_dev->blksz)) - return 1; - - return 0; -} - -/* -------------------------------------------------------------------------- */ - -int cspsa_fp_read(block_dev_desc_t *block_dev, u32 key, u32 *value) -{ - u32 start_block; - u32 size_in_blocks; - int result = 1; - struct cspsa_header *first_header = NULL; - struct cspsa_header *last_header = NULL; - u32 first_header_valid = 0; - u32 last_header_valid = 0; - u32 n; - - /* Check that the requested item is a valid fast parameter. */ - if (key >= CSPSA_NBR_OF_FAST_PARAMETERS) - goto error_exit; - - if (find_cspsa_area(block_dev, &start_block, &size_in_blocks)) - goto error_exit; - - first_header = (struct cspsa_header *) malloc(block_dev->blksz); - last_header = (struct cspsa_header *) malloc(block_dev->blksz); - - if ((first_header == NULL) || (last_header == NULL)) - goto error_exit; - - /* Read header at start of area and check header CRC32. */ - n = block_dev->block_read(block_dev->dev, - start_block, - 1, - first_header); - if (n != 1) - goto error_exit; - - /* Read header at end of area and check header CRC32. */ - n = block_dev->block_read(block_dev->dev, - start_block + size_in_blocks - 1, - 1, - last_header); - if (n != 1) - goto error_exit; - - first_header_valid = - (first_header->magic == CSPSA_HEADER_MAGIC) && - (first_header->version == CSPSA_HEADER_VERSION) && - (calc_crc32_header(first_header) == first_header->crc32_header); - last_header_valid = - (last_header->magic == CSPSA_HEADER_MAGIC) && - (last_header->version == CSPSA_HEADER_VERSION) && - (calc_crc32_header(last_header) == last_header->crc32_header); - - if (first_header_valid && last_header_valid) { - /* If both headers are valid use the header with lowest index */ - if (first_header->index < last_header->index) - *value = first_header->fast_parameter[key]; - else - *value = last_header->fast_parameter[key]; - } else if (first_header_valid) - *value = first_header->fast_parameter[key]; - else if (last_header_valid) - *value = last_header->fast_parameter[key]; - else - /* No valid header was found */ - goto error_exit; - - result = 0; - -error_exit: - - if (first_header) - free(first_header); - if (last_header) - free(last_header); - return result; -} - -/* -------------------------------------------------------------------------- */ |