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-rw-r--r--bootloader.cpp144
1 files changed, 106 insertions, 38 deletions
diff --git a/bootloader.cpp b/bootloader.cpp
index ff0dc6826..fbb31e060 100644
--- a/bootloader.cpp
+++ b/bootloader.cpp
@@ -14,6 +14,9 @@
* limitations under the License.
*/
+/*
+#include <fs_mgr.h>
+*/
#include "bootloader.h"
#include "common.h"
extern "C" {
@@ -27,38 +30,42 @@ extern "C" {
#include <sys/stat.h>
#include <unistd.h>
+static char device_type = 'e'; // e for emmc or m for mtd, default is emmc
+static char device_name[256];
+
+/*
static int get_bootloader_message_mtd(struct bootloader_message *out, const Volume* v);
static int set_bootloader_message_mtd(const struct bootloader_message *in, const Volume* v);
static int get_bootloader_message_block(struct bootloader_message *out, const Volume* v);
static int set_bootloader_message_block(const struct bootloader_message *in, const Volume* v);
-
+*/
int get_bootloader_message(struct bootloader_message *out) {
- Volume* v = NULL;//volume_for_path("/misc");
- if (v == NULL) {
+ //volume_for_path("/misc");
+ if (device_name[0] == 0) {
LOGE("Cannot load volume /misc!\n");
return -1;
}
- if (strcmp(v->fs_type, "mtd") == 0) {
- return get_bootloader_message_mtd(out, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
- return get_bootloader_message_block(out, v);
+ if (device_type == 'm') {
+ return get_bootloader_message_mtd_name(out);
+ } else if (device_type == 'e') {
+ return get_bootloader_message_block_name(out);
}
- LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
+ LOGE("unknown misc partition fs_type \"%c\"\n", device_type);
return -1;
}
int set_bootloader_message(const struct bootloader_message *in) {
- Volume* v = NULL;//volume_for_path("/misc");
- if (v == NULL) {
+ //volume_for_path("/misc");
+ if (device_name[0] == 0) {
LOGE("Cannot load volume /misc!\n");
return -1;
}
- if (strcmp(v->fs_type, "mtd") == 0) {
- return set_bootloader_message_mtd(in, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
- return set_bootloader_message_block(in, v);
+ if (device_type == 'm') {
+ return set_bootloader_message_mtd_name(in, device_name);
+ } else if (device_type == 'e') {
+ return set_bootloader_message_block_name(in, device_name);
}
- LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
+ LOGE("unknown misc partition type \"%c\"\n", device_type);
return -1;
}
@@ -68,27 +75,27 @@ int set_bootloader_message(const struct bootloader_message *in) {
static const int MISC_PAGES = 3; // number of pages to save
static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
-
+/*
static int get_bootloader_message_mtd(struct bootloader_message *out,
const Volume* v) {
size_t write_size;
mtd_scan_partitions();
- const MtdPartition *part = mtd_find_partition_by_name(v->device);
+ const MtdPartition *part = mtd_find_partition_by_name(v->blk_device);
if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
- LOGE("Can't find %s\n", v->device);
+ LOGE("Can't find %s\n", v->blk_device);
return -1;
}
MtdReadContext *read = mtd_read_partition(part);
if (read == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't open %s\n(%s)\n", v->blk_device, 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", v->device, strerror(errno));
+ if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno));
mtd_read_close(read);
if (r != size) return -1;
@@ -99,22 +106,22 @@ static int set_bootloader_message_mtd(const struct bootloader_message *in,
const Volume* v) {
size_t write_size;
mtd_scan_partitions();
- const MtdPartition *part = mtd_find_partition_by_name(v->device);
+ const MtdPartition *part = mtd_find_partition_by_name(v->blk_device);
if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
- LOGE("Can't find %s\n", v->device);
+ LOGE("Can't find %s\n", v->blk_device);
return -1;
}
MtdReadContext *read = mtd_read_partition(part);
if (read == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't open %s\n(%s)\n", v->blk_device, 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", v->device, strerror(errno));
+ if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno));
mtd_read_close(read);
if (r != size) return -1;
@@ -122,22 +129,61 @@ static int set_bootloader_message_mtd(const struct bootloader_message *in,
MtdWriteContext *write = mtd_write_partition(part);
if (write == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
return -1;
}
if (mtd_write_data(write, data, size) != size) {
- LOGE("Can't write %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't write %s\n(%s)\n", v->blk_device, strerror(errno));
mtd_write_close(write);
return -1;
}
if (mtd_write_close(write)) {
- LOGE("Can't finish %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't finish %s\n(%s)\n", v->blk_device, strerror(errno));
return -1;
}
LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
return 0;
}
+*/
+
+void set_device_type(char new_type) {
+ device_type = new_type;
+}
+
+void set_device_name(const char* new_name) {
+ if (strlen(new_name) >= sizeof(device_name)) {
+ LOGE("New device name of '%s' is too large for bootloader.cpp\n", new_name);
+ } else {
+ strcpy(device_name, new_name);
+ }
+}
+
+int get_bootloader_message_mtd_name(struct bootloader_message *out) {
+ size_t write_size;
+ mtd_scan_partitions();
+ const MtdPartition *part = mtd_find_partition_by_name(device_name);
+ if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
+ LOGE("Can't find %s\n", device_name);
+ return -1;
+ }
+
+ MtdReadContext *read = mtd_read_partition(part);
+ if (read == NULL) {
+ LOGE("Can't open %s\n(%s)\n", device_name, 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", device_name, strerror(errno));
+ mtd_read_close(read);
+ if (r != size) return -1;
+
+ memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out));
+ return 0;
+}
int set_bootloader_message_mtd_name(const struct bootloader_message *in,
const char* mtd_name) {
@@ -203,23 +249,23 @@ static void wait_for_device(const char* fn) {
printf("failed to stat %s\n", fn);
}
}
-
+/*
static int get_bootloader_message_block(struct bootloader_message *out,
const Volume* v) {
- wait_for_device(v->device);
- FILE* f = fopen(v->device, "rb");
+ wait_for_device(v->blk_device);
+ FILE* f = fopen(v->blk_device, "rb");
if (f == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't open %s\n(%s)\n", v->blk_device, 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", v->device, strerror(errno));
+ LOGE("Failed reading %s\n(%s)\n", v->blk_device, strerror(errno));
return -1;
}
if (fclose(f) != 0) {
- LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno));
return -1;
}
memcpy(out, &temp, sizeof(temp));
@@ -228,21 +274,43 @@ static int get_bootloader_message_block(struct bootloader_message *out,
static int set_bootloader_message_block(const struct bootloader_message *in,
const Volume* v) {
- wait_for_device(v->device);
- FILE* f = fopen(v->device, "wb");
+ wait_for_device(v->blk_device);
+ FILE* f = fopen(v->blk_device, "wb");
if (f == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
return -1;
}
int count = fwrite(in, sizeof(*in), 1, f);
if (count != 1) {
- LOGE("Failed writing %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Failed writing %s\n(%s)\n", v->blk_device, strerror(errno));
+ return -1;
+ }
+ if (fclose(f) != 0) {
+ LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno));
+ return -1;
+ }
+ return 0;
+}
+*/
+
+int get_bootloader_message_block_name(struct bootloader_message *out) {
+ wait_for_device(device_name);
+ FILE* f = fopen(device_name, "rb");
+ if (f == NULL) {
+ LOGE("Can't open %s\n(%s)\n", device_name, 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", device_name, strerror(errno));
return -1;
}
if (fclose(f) != 0) {
- LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
+ LOGE("Failed closing %s\n(%s)\n", device_name, strerror(errno));
return -1;
}
+ memcpy(out, &temp, sizeof(temp));
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 20:23:23 +0100