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Diffstat (limited to 'twbootloader.cpp')
-rw-r--r--twbootloader.cpp281
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;
}
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