| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * mkamsboot.c - a tool for merging bootloader code into an Sansa V2 |
| * (AMS) firmware file |
| * |
| * Copyright (C) 2008 Dave Chapman |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| |
| /* |
| |
| Insert a Rockbox bootloader into a Sansa AMS original firmware file. |
| |
| Layout of a Sansa AMS original firmware file: |
| |
| ---------------------- 0x0 |
| | HEADER | |
| |----------------------| 0x400 |
| | FIRMWARE BLOCK | (contains the OF version on some fuzev2 firmwares |
| |----------------------| 0x600 |
| | FIRMWARE BLOCK | |
| |----------------------| 0x400 + firmware block size |
| | LIBRARIES/DATA | |
| ---------------------- END |
| |
| We replace the main firmware block while preserving the potential OF version |
| (bytes 0x600..0x400+firmware_size) as follows: |
| |
| |
| ---------------------- 0x0 |
| | | |
| | Dual-boot code | |
| | | |
| |----------------------| |
| | EMPTY SPACE | |
| |----------------------| |
| | | |
| | compressed RB image | |
| | | |
| |----------------------| |
| | | |
| | compressed OF image | |
| | | |
| |----------------------| |
| | UCL unpack function | |
| ---------------------- |
| |
| This entire block fits into the space previously occupied by the main |
| firmware block - the space saved by compressing the OF image is used |
| to store the compressed version of the Rockbox bootloader. |
| |
| On version 1 firmwares, the OF image is typically about 120KB, which allows |
| us to store a Rockbox bootloader with an uncompressed size of about 60KB-70KB. |
| Version 2 firmwares are bigger and are stored in SDRAM (instead of IRAM). |
| In both cases, the RAM we are using is mapped at offset 0x0. |
| |
| mkamsboot then corrects the checksums and writes a new legal firmware |
| file which can be installed on the device. |
| |
| When the Sansa device boots, this firmware block is loaded to RAM at |
| address 0x0 and executed. |
| |
| Firstly, the dual-boot code will copy the UCL unpack function to the |
| end of RAM. |
| |
| Then, depending on the detection of the dual-boot keypress, either the |
| OF image or the Rockbox image is copied to the end of RAM (just before |
| the ucl unpack function) and uncompressed to the start of RAM. |
| |
| Finally, the ucl unpack function branches to address 0x0, passing |
| execution to the uncompressed firmware. |
| |
| |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <string.h> |
| |
| #include <ucl/ucl.h> |
| |
| #include "mkamsboot.h" |
| |
| #include "md5.h" |
| |
| /* Header for ARM code binaries */ |
| #include "dualboot.h" |
| |
| /* Win32 compatibility */ |
| #ifndef O_BINARY |
| #define O_BINARY 0 |
| #endif |
| |
| /* fw_revision: version 2 is used in Clipv2, Clip+ and Fuzev2 firmwares */ |
| /* hw_revision: 4 for m200, 2 for e200/c200, 1 or 2 for fuze/clip, 1 for clip+ */ |
| const struct ams_models ams_identity[] = { |
| [MODEL_C200V2] = { 2, 1, "c200", dualboot_c200v2, sizeof(dualboot_c200v2), "c2v2", 44 }, |
| [MODEL_CLIPPLUS]= { 1, 2, "Clip+", dualboot_clipplus, sizeof(dualboot_clipplus), "cli+", 66 }, |
| [MODEL_CLIPV2] = { 2, 2, "Clip", dualboot_clipv2, sizeof(dualboot_clipv2), "clv2", 60 }, |
| [MODEL_CLIP] = { 1, 1, "Clip", dualboot_clip, sizeof(dualboot_clip), "clip", 40 }, |
| [MODEL_E200V2] = { 2, 1, "e200", dualboot_e200v2, sizeof(dualboot_e200v2), "e2v2", 41 }, |
| [MODEL_FUZEV2] = { 2, 2, "Fuze", dualboot_fuzev2, sizeof(dualboot_fuzev2), "fuz2", 68 }, |
| [MODEL_FUZE] = { 1, 1, "Fuze", dualboot_fuze, sizeof(dualboot_fuze), "fuze", 43 }, |
| [MODEL_M200V4] = { 4, 1, "m200", dualboot_m200v4, sizeof(dualboot_m200v4), "m2v4", 42 }, |
| [MODEL_CLIPZIP] = { 1, 2, "ClipZip", dualboot_clipzip, sizeof(dualboot_clipzip), "clzp", 79 }, |
| }; |
| |
| |
| /* Checksums of unmodified original firmwares - for safety, and device |
| detection */ |
| static struct md5sums sansasums[] = { |
| /* NOTE: Different regional versions of the firmware normally only |
| differ in the filename - the md5sums are identical */ |
| |
| /* model version md5 */ |
| { MODEL_E200V2, "3.01.11", "e622ca8cb6df423f54b8b39628a1f0a3" }, |
| { MODEL_E200V2, "3.01.14", "2c1d0383fc3584b2cc83ba8cc2243af6" }, |
| { MODEL_E200V2, "3.01.16", "12563ad71b25a1034cf2092d1e0218c4" }, |
| |
| { MODEL_FUZE, "1.01.11", "cac8ffa03c599330ac02c4d41de66166" }, |
| { MODEL_FUZE, "1.01.15", "df0e2c1612727f722c19a3c764cff7f2" }, |
| { MODEL_FUZE, "1.01.22", "5aff5486fe8dd64239cc71eac470af98" }, |
| { MODEL_FUZE, "1.02.26", "7c632c479461c48c8833baed74eb5e4f" }, |
| { MODEL_FUZE, "1.02.28", "5b34260f6470e75f702a9c6825471752" }, |
| { MODEL_FUZE, "1.02.31", "66d01b37462a5ef7ccc6ad37188b4235" }, |
| |
| { MODEL_C200V2, "3.02.05", "b6378ebd720b0ade3fad4dc7ab61c1a5" }, |
| |
| { MODEL_M200V4, "4.00.45", "82e3194310d1514e3bbcd06e84c4add3" }, |
| { MODEL_M200V4, "4.01.08-A", "fc9dd6116001b3e6a150b898f1b091f0" }, |
| { MODEL_M200V4, "4.01.08-E", "d3fb7d8ec8624ee65bc99f8dab0e2369" }, |
| |
| { MODEL_CLIP, "1.01.17", "12caad785d506219d73f538772afd99e" }, |
| { MODEL_CLIP, "1.01.18", "d720b266bd5afa38a198986ef0508a45" }, |
| { MODEL_CLIP, "1.01.20", "236d8f75189f468462c03f6d292cf2ac" }, |
| { MODEL_CLIP, "1.01.29", "c12711342169c66e209540cd1f27cd26" }, |
| { MODEL_CLIP, "1.01.30", "f2974d47c536549c9d8259170f1dbe4d" }, |
| { MODEL_CLIP, "1.01.32", "d835d12342500732ffb9c4ee54abec15" }, |
| { MODEL_CLIP, "1.01.35", "b4d0edb3b8f2a4e8eee0a344f7f8e480" }, |
| |
| { MODEL_CLIPV2, "2.01.16", "c57fb3fcbe07c2c9b360f060938f80cb" }, |
| { MODEL_CLIPV2, "2.01.32", "0ad3723e52022509089d938d0fbbf8c5" }, |
| { MODEL_CLIPV2, "2.01.35", "a3cbbd22b9508d7f8a9a1a39acc342c2" }, |
| |
| { MODEL_CLIPPLUS, "01.02.09", "656d38114774c2001dc18e6726df3c5d" }, |
| { MODEL_CLIPPLUS, "01.02.13", "5f89872b79ef440b0e5ee3a7a44328b2" }, |
| { MODEL_CLIPPLUS, "01.02.15", "680a4f521e790ad25b93b1b16f3a207d" }, |
| { MODEL_CLIPPLUS, "01.02.16", "055a53de1dfb09f6cb71c504ad48bd13" }, |
| { MODEL_CLIPPLUS, "01.02.18", "80b547244438b113e2a55ff0305f12c0" }, |
| |
| { MODEL_FUZEV2, "2.01.17", "8b85fb05bf645d08a4c8c3e344ec9ebe" }, |
| { MODEL_FUZEV2, "2.02.26", "d4f6f85c3e4a8ea8f2e5acc421641801" }, |
| { MODEL_FUZEV2, "2.03.31", "74fb197ccd51707388f3b233402186a6" }, |
| { MODEL_FUZEV2, "2.03.33", "1599cc73d02ea7fe53fe2d4379c24b66" }, |
| |
| { MODEL_CLIPZIP, "1.01.12", "45adea0873326b5af34f096e5c402f78" }, |
| { MODEL_CLIPZIP, "1.01.15", "f62af954334cd9ba1a87a7fa58ec6074" }, |
| { MODEL_CLIPZIP, "1.01.17", "27bcb343d6950f35dc261629e22ba60c" }, |
| { MODEL_CLIPZIP, "1.01.18", "ef16aa9e02b49885ebede5aa149502e8" }, |
| { MODEL_CLIPZIP, "1.01.20", "d88c8977cc6a952d3f51ece105869d97" }, |
| { MODEL_CLIPZIP, "1.01.21", "92c814d6e3250189706a36d2b49b6152" }, |
| }; |
| |
| #define NUM_MD5S (sizeof(sansasums)/sizeof(sansasums[0])) |
| |
| static unsigned int model_memory_size(int model) |
| { |
| /* The OF boots with IRAM (320kB) mapped at 0x0 */ |
| |
| if(model == MODEL_CLIPV2) |
| { |
| /* The decompressed Clipv2 OF is around 380kB. |
| * Let's use the full IRAM (1MB on AMSv2) |
| */ |
| return 1 << 20; |
| } |
| else |
| { |
| /* The IRAM is 320kB on AMSv1, and 320 will be enough on Fuzev1/Clip+ */ |
| return 320 << 10; |
| } |
| } |
| |
| int firmware_revision(int model) |
| { |
| return ams_identity[model].fw_revision; |
| } |
| |
| static off_t filesize(int fd) |
| { |
| struct stat buf; |
| |
| if (fstat(fd, &buf) < 0) { |
| perror("[ERR] Checking filesize of input file"); |
| return -1; |
| } else { |
| return(buf.st_size); |
| } |
| } |
| |
| static uint32_t get_uint32le(unsigned char* p) |
| { |
| return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); |
| } |
| |
| static uint32_t get_uint32be(unsigned char* p) |
| { |
| return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; |
| } |
| |
| static void put_uint32le(unsigned char* p, uint32_t x) |
| { |
| p[0] = x & 0xff; |
| p[1] = (x >> 8) & 0xff; |
| p[2] = (x >> 16) & 0xff; |
| p[3] = (x >> 24) & 0xff; |
| } |
| |
| void calc_MD5(unsigned char* buf, int len, char *md5str) |
| { |
| int i; |
| md5_context ctx; |
| unsigned char md5sum[16]; |
| |
| md5_starts(&ctx); |
| md5_update(&ctx, buf, len); |
| md5_finish(&ctx, md5sum); |
| |
| for (i = 0; i < 16; ++i) |
| sprintf(md5str + 2*i, "%02x", md5sum[i]); |
| } |
| |
| /* Calculate a simple checksum used in Sansa Original Firmwares */ |
| static uint32_t calc_checksum(unsigned char* buf, uint32_t n) |
| { |
| uint32_t sum = 0; |
| uint32_t i; |
| |
| for (i=0;i<n;i+=4) |
| sum += get_uint32le(buf + i); |
| |
| return sum; |
| } |
| |
| /* Compress using nrv2e algorithm : Thumb decompressor fits in 168 bytes ! */ |
| static unsigned char* uclpack(unsigned char* inbuf, int insize, int* outsize) |
| { |
| int maxsize; |
| unsigned char* outbuf; |
| int r; |
| |
| /* The following formula comes from the UCL documentation */ |
| maxsize = insize + (insize / 8) + 256; |
| |
| /* Allocate some memory for the output buffer */ |
| outbuf = malloc(maxsize); |
| |
| if (outbuf == NULL) |
| return NULL; |
| |
| r = ucl_nrv2e_99_compress( |
| (const ucl_bytep) inbuf, |
| (ucl_uint) insize, |
| (ucl_bytep) outbuf, |
| (ucl_uintp) outsize, |
| 0, 10, NULL, NULL); |
| |
| if (r != UCL_E_OK || *outsize > maxsize) { |
| /* this should NEVER happen, and implies memory corruption */ |
| fprintf(stderr, "internal error - compression failed: %d\n", r); |
| free(outbuf); |
| return NULL; |
| } |
| |
| return outbuf; |
| } |
| |
| #define ERROR(format, ...) \ |
| do { \ |
| snprintf(errstr, errstrsize, format, __VA_ARGS__); \ |
| goto error; \ |
| } while(0) |
| |
| /* Loads a Sansa AMS Original Firmware file into memory */ |
| unsigned char* load_of_file( |
| char* filename, int model, off_t* bufsize, struct md5sums *sum, |
| int* firmware_size, unsigned char** of_packed, |
| int* of_packedsize, char* errstr, int errstrsize) |
| { |
| int fd; |
| unsigned char* buf =NULL; |
| off_t n; |
| unsigned int i=0; |
| uint32_t checksum; |
| unsigned int last_word; |
| |
| fd = open(filename, O_RDONLY|O_BINARY); |
| if (fd < 0) |
| ERROR("[ERR] Could not open %s for reading\n", filename); |
| |
| *bufsize = filesize(fd); |
| |
| buf = malloc(*bufsize); |
| if (buf == NULL) |
| ERROR("[ERR] Could not allocate memory for %s\n", filename); |
| |
| n = read(fd, buf, *bufsize); |
| |
| if (n != *bufsize) |
| ERROR("[ERR] Could not read file %s\n", filename); |
| |
| /* check the file */ |
| |
| /* Calculate MD5 checksum of OF */ |
| calc_MD5(buf, *bufsize, sum->md5); |
| |
| while ((i < NUM_MD5S) && (strcmp(sansasums[i].md5, sum->md5) != 0)) |
| i++; |
| |
| if (i < NUM_MD5S) { |
| *sum = sansasums[i]; |
| if(sum->model != model) { |
| ERROR("[ERR] OF File provided is %sv%d version %s, not for %sv%d\n", |
| ams_identity[sum->model].model_name, ams_identity[sum->model].hw_revision, |
| sum->version, ams_identity[model].model_name, ams_identity[model].hw_revision |
| ); |
| } |
| } else { |
| /* OF unknown, give a list of tested versions for the requested model */ |
| |
| char tested_versions[100]; |
| tested_versions[0] = '\0'; |
| |
| for (i = 0; i < NUM_MD5S ; i++) |
| if (sansasums[i].model == model) { |
| if (tested_versions[0] != '\0') { |
| strncat(tested_versions, ", ", |
| sizeof(tested_versions) - strlen(tested_versions) - 1); |
| } |
| strncat(tested_versions, sansasums[i].version, |
| sizeof(tested_versions) - strlen(tested_versions) - 1); |
| } |
| |
| ERROR("[ERR] Original firmware unknown, please try another version." |
| " Tested %sv%d versions are: %s\n", |
| ams_identity[model].model_name, ams_identity[model].hw_revision, tested_versions); |
| } |
| |
| /* TODO: Do some more sanity checks on the OF image. Some images (like |
| m200v4) dont have a checksum at the end, only padding (0xdeadbeef). */ |
| last_word = *bufsize - 4; |
| checksum = get_uint32le(buf + last_word); |
| if (checksum != 0xefbeadde && checksum != calc_checksum(buf, last_word)) |
| ERROR("%s", "[ERR] Whole file checksum failed\n"); |
| |
| if (ams_identity[sum->model].bootloader == NULL) |
| ERROR("[ERR] Unsupported model - \"%s\"\n", ams_identity[sum->model].model_name); |
| |
| /* Get the firmware size */ |
| if (ams_identity[sum->model].fw_revision == 1) |
| *firmware_size = get_uint32le(&buf[0x0c]); |
| else if (ams_identity[sum->model].fw_revision == 2) |
| *firmware_size = get_uint32le(&buf[0x10]); |
| |
| /* Compress the original firmware image */ |
| *of_packed = uclpack(buf + 0x400, *firmware_size, of_packedsize); |
| if (*of_packed == NULL) |
| ERROR("[ERR] Could not compress %s\n", filename); |
| |
| return buf; |
| |
| error: |
| free(buf); |
| return NULL; |
| } |
| |
| /* Loads a rockbox bootloader file into memory */ |
| unsigned char* load_rockbox_file( |
| char* filename, int *model, int* bufsize, int* rb_packedsize, |
| char* errstr, int errstrsize) |
| { |
| int fd; |
| unsigned char* buf = NULL; |
| unsigned char* packed = NULL; |
| unsigned char header[8]; |
| uint32_t sum; |
| off_t n; |
| int i; |
| |
| fd = open(filename, O_RDONLY|O_BINARY); |
| if (fd < 0) |
| ERROR("[ERR] Could not open %s for reading\n", filename); |
| |
| /* Read Rockbox header */ |
| n = read(fd, header, sizeof(header)); |
| if (n != sizeof(header)) |
| ERROR("[ERR] Could not read file %s\n", filename); |
| |
| for(*model = 0; *model < NUM_MODELS; (*model)++) |
| if (memcmp(ams_identity[*model].rb_model_name, header + 4, 4) == 0) |
| break; |
| |
| if(*model == NUM_MODELS) |
| ERROR("[ERR] Model name \"%4.4s\" unknown. Is this really a rockbox bootloader?\n", header + 4); |
| |
| *bufsize = filesize(fd) - sizeof(header); |
| |
| buf = malloc(*bufsize); |
| if (buf == NULL) |
| ERROR("[ERR] Could not allocate memory for %s\n", filename); |
| |
| n = read(fd, buf, *bufsize); |
| |
| if (n != *bufsize) |
| ERROR("[ERR] Could not read file %s\n", filename); |
| |
| /* Check checksum */ |
| sum = ams_identity[*model].rb_model_num; |
| for (i = 0; i < *bufsize; i++) { |
| /* add 8 unsigned bits but keep a 32 bit sum */ |
| sum += buf[i]; |
| } |
| |
| if (sum != get_uint32be(header)) |
| ERROR("[ERR] Checksum mismatch in %s\n", filename); |
| |
| packed = uclpack(buf, *bufsize, rb_packedsize); |
| if(packed == NULL) |
| ERROR("[ERR] Could not compress %s\n", filename); |
| |
| free(buf); |
| return packed; |
| |
| error: |
| free(buf); |
| return NULL; |
| } |
| |
| #undef ERROR |
| |
| /* Patches a Sansa AMS Original Firmware file */ |
| void patch_firmware( |
| int model, int fw_revision, int firmware_size, unsigned char* buf, |
| int len, unsigned char* of_packed, int of_packedsize, |
| unsigned char* rb_packed, int rb_packedsize) |
| { |
| unsigned char *p; |
| uint32_t sum, filesum; |
| uint32_t ucl_dest; |
| unsigned int i; |
| |
| /* Zero the original firmware area - not needed, but helps debugging */ |
| memset(buf + 0x600, 0, firmware_size); |
| |
| /* Insert dual-boot bootloader at offset 0x200, we preserve the OF |
| * version string located between 0x0 and 0x200 */ |
| memcpy(buf + 0x600, ams_identity[model].bootloader, ams_identity[model].bootloader_size); |
| |
| /* Insert vectors, they won't overwrite the OF version string */ |
| static const uint32_t goto_start = 0xe3a0fc02; // mov pc, #0x200 |
| static const uint32_t infinite_loop = 0xeafffffe; // 1: b 1b |
| /* ALL vectors: infinite loop */ |
| for (i=0; i < 8; i++) |
| put_uint32le(buf + 0x400 + 4*i, infinite_loop); |
| /* Now change only the interesting vectors */ |
| /* Reset/SWI vectors: branch to our dualboot code at 0x200 */ |
| put_uint32le(buf + 0x400 + 4*0, goto_start); // Reset |
| put_uint32le(buf + 0x400 + 4*2, goto_start); // SWI |
| |
| /* We are filling the firmware buffer backwards from the end */ |
| p = buf + 0x400 + firmware_size; |
| |
| /* 1 - UCL unpack function */ |
| p -= sizeof(nrv2e_d8); |
| memcpy(p, nrv2e_d8, sizeof(nrv2e_d8)); |
| |
| /* 2 - Compressed copy of original firmware */ |
| p -= of_packedsize; |
| memcpy(p, of_packed, of_packedsize); |
| |
| /* 3 - Compressed copy of Rockbox bootloader */ |
| p -= rb_packedsize; |
| memcpy(p, rb_packed, rb_packedsize); |
| |
| /* Write the locations of the various images to the variables at the |
| start of the dualboot image - we save the location of the last byte |
| in each image, along with the size in bytes */ |
| |
| /* UCL unpack function */ |
| put_uint32le(&buf[0x604], firmware_size - 1); |
| put_uint32le(&buf[0x608], sizeof(nrv2e_d8)); |
| |
| /* Compressed original firmware image */ |
| put_uint32le(&buf[0x60c], firmware_size - sizeof(nrv2e_d8) - 1); |
| put_uint32le(&buf[0x610], of_packedsize); |
| |
| /* Compressed Rockbox image */ |
| put_uint32le(&buf[0x614], firmware_size - sizeof(nrv2e_d8) - of_packedsize |
| - 1); |
| put_uint32le(&buf[0x618], rb_packedsize); |
| |
| ucl_dest = model_memory_size(model) - 1; /* last byte of memory */ |
| put_uint32le(&buf[0x61c], ucl_dest); |
| |
| /* Update the firmware block checksum */ |
| sum = calc_checksum(buf + 0x400, firmware_size); |
| |
| if (fw_revision == 1) { |
| put_uint32le(&buf[0x04], sum); |
| put_uint32le(&buf[0x204], sum); |
| } else if (fw_revision == 2) { |
| put_uint32le(&buf[0x08], sum); |
| put_uint32le(&buf[0x208], sum); |
| |
| /* Update the header checksums */ |
| put_uint32le(&buf[0x1fc], calc_checksum(buf, 0x1fc)); |
| put_uint32le(&buf[0x3fc], calc_checksum(buf + 0x200, 0x1fc)); |
| } |
| |
| /* Update the whole-file checksum */ |
| filesum = 0; |
| for (i=0;i < (unsigned)len - 4; i+=4) |
| filesum += get_uint32le(&buf[i]); |
| |
| put_uint32le(buf + len - 4, filesum); |
| } |
| |
| /* returns != 0 if the firmware can be safely patched */ |
| int check_sizes(int model, int rb_packed_size, int rb_unpacked_size, |
| int of_packed_size, int of_unpacked_size, int *total_size, |
| char *errstr, int errstrsize) |
| { |
| /* XXX: we keep the first 0x200 bytes block unmodified, we just replace |
| * the ARM vectors */ |
| unsigned int packed_size = ams_identity[model].bootloader_size + sizeof(nrv2e_d8) + |
| of_packed_size + rb_packed_size + 0x200; |
| |
| /* how much memory is available */ |
| unsigned int memory_size = model_memory_size(model); |
| |
| /* the memory used when unpacking the OF */ |
| unsigned int ram_of = sizeof(nrv2e_d8) + of_packed_size + of_unpacked_size; |
| |
| /* the memory used when unpacking the bootloader */ |
| unsigned int ram_rb = sizeof(nrv2e_d8) + rb_packed_size + rb_unpacked_size; |
| |
| *total_size = packed_size; |
| |
| #define ERROR(format, ...) \ |
| do { \ |
| snprintf(errstr, errstrsize, format, __VA_ARGS__); \ |
| return 0; \ |
| } while(0) |
| |
| /* will packed data fit in the OF file ? */ |
| if(packed_size > of_unpacked_size) |
| ERROR( |
| "[ERR] Packed data (%d bytes) doesn't fit in the firmware " |
| "(%d bytes)\n", packed_size, of_unpacked_size |
| ); |
| |
| else if(ram_rb > memory_size) |
| ERROR("[ERR] Rockbox can't be unpacked at runtime, needs %d bytes " |
| "of memory and only %d available\n", ram_rb, memory_size |
| ); |
| |
| else if(ram_of > memory_size) |
| ERROR("[ERR] OF can't be unpacked at runtime, needs %d bytes " |
| "of memory and only %d available\n", ram_of, memory_size |
| ); |
| |
| return 1; |
| |
| #undef ERROR |
| } |