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author | Vojtech Bocek <vbocek@gmail.com> | 2013-07-25 22:53:02 +0200 |
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committer | Gerrit Code Review <gerrit@198.50.184.117> | 2013-08-24 14:56:48 +0200 |
commit | fafb0c541bb4b24515c57251a44d87825eec90fb (patch) | |
tree | 9cddb55ceef8912c8fafe618c98147ff6df19ef6 /twbootloader.cpp | |
parent | Clean-up in partitions.hpp (diff) | |
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Diffstat (limited to 'twbootloader.cpp')
-rw-r--r-- | twbootloader.cpp | 281 |
1 files changed, 145 insertions, 136 deletions
diff --git a/twbootloader.cpp b/twbootloader.cpp index 826ceca09..d0e49e0cd 100644 --- a/twbootloader.cpp +++ b/twbootloader.cpp @@ -33,33 +33,35 @@ static int get_bootloader_message_block(struct bootloader_message *out, const TW static int set_bootloader_message_block(const struct bootloader_message *in, const TWPartition* Partition); int get_bootloader_message(struct bootloader_message *out) { - TWPartition* Part = PartitionManager.Find_Partition_By_Path("/misc"); - if (Part == NULL) { - //LOGE("Cannot load volume /misc!\n"); - return -1; - } - if (Part->Current_File_System == "mtd") { - return get_bootloader_message_mtd(out, Part); - } else if (Part->Current_File_System == "emmc") { - return get_bootloader_message_block(out, Part); - } - LOGE("unknown misc partition fs_type \"%s\"\n", Part->Current_File_System.c_str()); - return -1; + TWPartition* Part = PartitionManager.Find_Partition_By_Path("/misc"); + if (Part == NULL) { + //LOGE("Cannot load volume /misc!\n"); + return -1; + } + + if (Part->Current_File_System == "mtd") + return get_bootloader_message_mtd(out, Part); + else if (Part->Current_File_System == "emmc") + return get_bootloader_message_block(out, Part); + + LOGE("unknown misc partition fs_type \"%s\"\n", Part->Current_File_System.c_str()); + return -1; } int set_bootloader_message(const struct bootloader_message *in) { - TWPartition* Part = PartitionManager.Find_Partition_By_Path("/misc"); - if (Part == NULL) { - //LOGE("Cannot load volume /misc!\n"); - return -1; - } - if (Part->Current_File_System == "mtd") { - return set_bootloader_message_mtd(in, Part); - } else if (Part->Current_File_System == "emmc") { - return set_bootloader_message_block(in, Part); - } - LOGE("unknown misc partition fs_type \"%s\"\n", Part->Current_File_System.c_str()); - return -1; + TWPartition* Part = PartitionManager.Find_Partition_By_Path("/misc"); + if (Part == NULL) { + //LOGE("Cannot load volume /misc!\n"); + return -1; + } + + if (Part->Current_File_System == "mtd") + return set_bootloader_message_mtd(in, Part); + else if (Part->Current_File_System == "emmc") + return set_bootloader_message_block(in, Part); + + LOGE("unknown misc partition fs_type \"%s\"\n", Part->Current_File_System.c_str()); + return -1; } // ------------------------------ @@ -71,134 +73,141 @@ static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page static int get_bootloader_message_mtd(struct bootloader_message *out, const TWPartition* Partition) { - size_t write_size; - mtd_scan_partitions(); - const MtdPartition *part = mtd_find_partition_by_name(Partition->MTD_Name.c_str()); - if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { - LOGE("Can't find %s\n", Partition->MTD_Name.c_str()); - return -1; - } - - MtdReadContext *read = mtd_read_partition(part); - if (read == NULL) { - LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - return -1; - } - - const ssize_t size = write_size * MISC_PAGES; - char data[size]; - ssize_t r = mtd_read_data(read, data, size); - if (r != size) LOGE("Can't read %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - mtd_read_close(read); - if (r != size) return -1; - - memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out)); - return 0; + size_t write_size; + mtd_scan_partitions(); + const MtdPartition *part = mtd_find_partition_by_name(Partition->MTD_Name.c_str()); + if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { + LOGE("Can't find %s\n", Partition->MTD_Name.c_str()); + return -1; + } + + MtdReadContext *read = mtd_read_partition(part); + if (read == NULL) { + LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + return -1; + } + + const ssize_t size = write_size * MISC_PAGES; + char data[size]; + ssize_t r = mtd_read_data(read, data, size); + if (r != size) LOGE("Can't read %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + mtd_read_close(read); + if (r != size) return -1; + + memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out)); + return 0; } static int set_bootloader_message_mtd(const struct bootloader_message *in, const TWPartition* Partition) { - size_t write_size; - mtd_scan_partitions(); - const MtdPartition *part = mtd_find_partition_by_name(Partition->MTD_Name.c_str()); - if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { - LOGE("Can't find %s\n", Partition->MTD_Name.c_str()); - return -1; - } - - MtdReadContext *read = mtd_read_partition(part); - if (read == NULL) { - LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - return -1; - } - - ssize_t size = write_size * MISC_PAGES; - char data[size]; - ssize_t r = mtd_read_data(read, data, size); - if (r != size) LOGE("Can't read %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - mtd_read_close(read); - if (r != size) return -1; - - memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in)); - - MtdWriteContext *write = mtd_write_partition(part); - if (write == NULL) { - LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - return -1; - } - if (mtd_write_data(write, data, size) != size) { - LOGE("Can't write %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - mtd_write_close(write); - return -1; - } - if (mtd_write_close(write)) { - LOGE("Can't finish %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); - return -1; - } - - LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : ""); - return 0; + size_t write_size; + mtd_scan_partitions(); + const MtdPartition *part = mtd_find_partition_by_name(Partition->MTD_Name.c_str()); + if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { + LOGE("Can't find %s\n", Partition->MTD_Name.c_str()); + return -1; + } + + MtdReadContext *read = mtd_read_partition(part); + if (read == NULL) { + LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + return -1; + } + + ssize_t size = write_size * MISC_PAGES; + char data[size]; + ssize_t r = mtd_read_data(read, data, size); + if (r != size) LOGE("Can't read %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + mtd_read_close(read); + if (r != size) return -1; + + memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in)); + + MtdWriteContext *write = mtd_write_partition(part); + if (write == NULL) { + LOGE("Can't open %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + return -1; + } + if (mtd_write_data(write, data, size) != size) { + LOGE("Can't write %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + mtd_write_close(write); + return -1; + } + if (mtd_write_close(write)) { + LOGE("Can't finish %s\n(%s)\n", Partition->MTD_Name.c_str(), strerror(errno)); + return -1; + } + + LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : ""); + return 0; } - // ------------------------------------ // for misc partitions on block devices // ------------------------------------ static void wait_for_device(const char* fn) { - int tries = 0; - int ret; - struct stat buf; - do { - ++tries; - ret = stat(fn, &buf); - if (ret) { - printf("stat %s try %d: %s\n", fn, tries, strerror(errno)); - sleep(1); - } - } while (ret && tries < 10); - if (ret) { - printf("failed to stat %s\n", fn); - } + int tries = 0; + int ret; + struct stat buf; + + do { + ++tries; + ret = stat(fn, &buf); + if (ret) { + printf("stat %s try %d: %s\n", fn, tries, strerror(errno)); + sleep(1); + } + } while (ret && tries < 10); + + if (ret) + printf("failed to stat %s\n", fn); } static int get_bootloader_message_block(struct bootloader_message *out, const TWPartition* Partition) { - wait_for_device(Partition->Actual_Block_Device.c_str()); - FILE* f = fopen(Partition->Actual_Block_Device.c_str(), "rb"); - if (f == NULL) { - LOGE("Can't open %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - struct bootloader_message temp; - int count = fread(&temp, sizeof(temp), 1, f); - if (count != 1) { - LOGE("Failed reading %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - if (fclose(f) != 0) { - LOGE("Failed closing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - memcpy(out, &temp, sizeof(temp)); - return 0; + wait_for_device(Partition->Actual_Block_Device.c_str()); + + FILE* f = fopen(Partition->Actual_Block_Device.c_str(), "rb"); + if (f == NULL) { + LOGE("Can't open %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + + struct bootloader_message temp; + int count = fread(&temp, sizeof(temp), 1, f); + if (count != 1) { + LOGE("Failed reading %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + + if (fclose(f) != 0) { + LOGE("Failed closing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + + memcpy(out, &temp, sizeof(temp)); + return 0; } static int set_bootloader_message_block(const struct bootloader_message *in, const TWPartition* Partition) { - wait_for_device(Partition->Actual_Block_Device.c_str()); - FILE* f = fopen(Partition->Actual_Block_Device.c_str(), "wb"); - if (f == NULL) { - LOGE("Can't open %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - int count = fwrite(in, sizeof(*in), 1, f); - if (count != 1) { - LOGE("Failed writing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - if (fclose(f) != 0) { - LOGE("Failed closing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); - return -1; - } - return 0; + wait_for_device(Partition->Actual_Block_Device.c_str()); + + FILE* f = fopen(Partition->Actual_Block_Device.c_str(), "wb"); + if (f == NULL) { + LOGE("Can't open %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + + int count = fwrite(in, sizeof(*in), 1, f); + if (count != 1) { + LOGE("Failed writing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + + if (fclose(f) != 0) { + LOGE("Failed closing %s\n(%s)\n", Partition->Actual_Block_Device.c_str(), strerror(errno)); + return -1; + } + return 0; } |