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-rw-r--r--rbutil/mkmpioboot/main.c8
-rw-r--r--rbutil/mkmpioboot/mkmpioboot.c136
-rw-r--r--rbutil/mkmpioboot/mkmpioboot.h9
3 files changed, 114 insertions, 39 deletions
diff --git a/rbutil/mkmpioboot/main.c b/rbutil/mkmpioboot/main.c
index 38e6d25288..9861cba261 100644
--- a/rbutil/mkmpioboot/main.c
+++ b/rbutil/mkmpioboot/main.c
@@ -37,7 +37,13 @@ int main(int argc, char *argv[])
char *infile, *bootfile, *outfile;
int origin = 0xe0000; /* MPIO HD200 bootloader address */
- if(argc < 3) {
+ fprintf(stderr,
+"mkmpioboot Version " VERSION "\n"
+"This is free software; see the source for copying conditions. There is NO\n"
+"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
+"\n");
+
+ if(argc < 3) {
usage();
}
diff --git a/rbutil/mkmpioboot/mkmpioboot.c b/rbutil/mkmpioboot/mkmpioboot.c
index 6d52e53f09..37dac60ec8 100644
--- a/rbutil/mkmpioboot/mkmpioboot.c
+++ b/rbutil/mkmpioboot/mkmpioboot.c
@@ -26,13 +26,37 @@
#include <string.h>
#include "mkmpioboot.h"
-#define OF_FIRMWARE_LEN 0x100000 /* size of HD200_UPG.SYS file */
-#define MPIO_STRING_OFFSET 0xfffe0
-
-/* We support only 1.30.05 version of OF for now */
-static char *mpio_string = "HD200 HDD Audio Ver113005";
-
-/* MPIO HD200 firmware is plain binary image
+#define OF_FIRMWARE_LEN 0x100000 /* size of the OF file */
+#define MPIO_STRING_OFFSET 0xfffe0 /* offset of the version string in OF */
+#define BOOTLOADER_MAX_SIZE 0x1f800 /* free space size */
+
+/* Descriptive name of these models */
+const char* model_names[] = {
+ [MODEL_HD200] = "MPIO HD200",
+ [MODEL_HD300] = "MPIO HD300",
+};
+
+/* Model names used in the Rockbox header in ".mpio" files - these match the
+ -add parameter to the "scramble" tool */
+static const char* rb_model_names[] = {
+ [MODEL_HD200] = "hd20",
+ [MODEL_HD300] = "hd30",
+};
+
+/* Model numbers used to initialise the checksum in the Rockbox header in
+ ".mpio" files - these are the same as MODEL_NUMBER in config-target.h */
+static const int rb_model_num[] = {
+ [MODEL_HD200] = 69,
+ [MODEL_HD300] = 70,
+};
+
+/* Strings which indentify OF version */
+static const char* of_model_string[] = {
+ [MODEL_HD200] = "HD200 HDD Audio Ver113005",
+ [MODEL_HD300] = "HD300 HDD Audio Ver113006",
+};
+
+/* MPIO HD200 and HD300 firmware is plain binary image
* 4 bytes of initial SP (loaded on reset)
* 4 bytes of initial PC (loaded on reset)
* binary image with entry point 0x00000008
@@ -49,9 +73,9 @@ static unsigned int get_uint32be(unsigned char* p)
return ((p[0] << 24) | (p[1] << 16) | (p[2]<<8) | p[3]);
}
-static long checksum(unsigned char* buf, unsigned long length)
+static long checksum(unsigned char* buf, int model, unsigned long length)
{
- unsigned long chksum = 69; /* MPIO HD200 model number */
+ unsigned long chksum = model;
unsigned long i;
if(buf == NULL)
@@ -70,21 +94,24 @@ int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, in
FILE *f;
int i;
int len;
+ int model_index;
unsigned long file_checksum;
- unsigned char header_checksum[4];
+ unsigned char header[8];
memset(image, 0xff, sizeof(image));
/* First, read the mpio original firmware into the image */
f = fopen(infile, "rb");
- if(!f) {
- perror(infile);
+ if(!f)
+ {
+ fprintf(stderr, "[ERR] Can not open %s file for reading\n", infile);
return -1;
}
i = fread(image, 1, OF_FIRMWARE_LEN, f);
- if(i < OF_FIRMWARE_LEN) {
- perror(infile);
+ if(i < OF_FIRMWARE_LEN)
+ {
+ fprintf(stderr, "[ERR] %s file read error\n", infile);
fclose(f);
return -2;
}
@@ -95,26 +122,45 @@ int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, in
* of the version string in firmware
*/
- if (strcmp((char*)(image + MPIO_STRING_OFFSET),mpio_string) != 0)
+ for(model_index = 0; model_index < NUM_MODELS; model_index++)
+ if (strcmp(of_model_string[model_index],
+ (char*)(image + MPIO_STRING_OFFSET)) == 0)
+ break;
+
+ if(model_index == NUM_MODELS)
{
- perror("Loaded firmware file does not look like MPIO OF file!");
+ fprintf(stderr, "[ERR] Unknown MPIO original firmware version\n");
return -3;
}
+ fprintf(stderr, "[INFO] Loading original firmware file for %s\n",
+ model_names[model_index]);
+
/* Now, read the boot loader into the image */
f = fopen(bootfile, "rb");
- if(!f) {
- perror(bootfile);
- fclose(f);
+ if(!f)
+ {
+ fprintf(stderr, "[ERR] Can not open %s file for reading\n", bootfile);
return -4;
}
+ fprintf(stderr, "[INFO] Loading Rockbox bootloader file\n");
+
/* get bootloader size
* excluding header
*/
fseek(f, 0, SEEK_END);
len = ftell(f) - 8;
+ if (len > BOOTLOADER_MAX_SIZE)
+ {
+ fprintf(stderr, "[ERR] Bootloader doesn't fit in firmware file.\n");
+ fprintf(stderr, "[ERR] This bootloader is %d bytes long\n", len);
+ fprintf(stderr, "[ERR] and maximum allowed size is %d bytes\n",
+ BOOTLOADER_MAX_SIZE);
+ return -5;
+ }
+
/* Now check if the place we want to put
* our bootloader is free
*/
@@ -122,24 +168,33 @@ int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, in
{
if (image[origin+i] != 0)
{
- perror("Place for bootloader in OF file not empty");
- return -5;
+ fprintf(stderr, "[ERR] Place for bootloader in OF file not empty\n");
+ return -6;
}
}
fseek(f, 0, SEEK_SET);
- /* get bootloader checksum from the header*/
- fread(header_checksum,1,4,f);
+ /* get bootloader header*/
+ fread(header,1,8,f);
+
+ if ( memcmp(header + 4, rb_model_names[model_index], 4) != 0 )
+ {
+ fprintf(stderr, "[ERR] Original firmware and rockbox bootloader mismatch!\n");
+ fprintf(stderr, "[ERR] Double check that you have bootloader for %s\n",
+ model_names[model_index]);
+ return -7;
+ }
/* omit header */
fseek(f, 8, SEEK_SET);
i = fread(image + origin, 1, len, f);
- if(i < len) {
- perror(bootfile);
+ if(i < len)
+ {
+ fprintf(stderr, "[ERR] %s file read error\n", bootfile);
fclose(f);
- return -6;
+ return -8;
}
fclose(f);
@@ -147,20 +202,23 @@ int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, in
/* calculate checksum and compare with data
* from header
*/
- file_checksum = checksum(image + origin, len);
+ file_checksum = checksum(image + origin, rb_model_num[model_index], len);
- if ( file_checksum != get_uint32be(header_checksum) )
+ if ( file_checksum != get_uint32be(header) )
{
- printf("Bootloader checksum error\n");
- return -7;
+ fprintf(stderr,"[ERR] Bootloader checksum error\n");
+ return -9;
}
f = fopen(outfile, "wb");
- if(!f) {
- perror(outfile);
- return -8;
+ if(!f)
+ {
+ fprintf(stderr, "[ERR] Can not open %s file for writing\n" ,outfile);
+ return -10;
}
+ fprintf(stderr, "[INFO] Patching reset vector\n");
+
/* Patch the stack pointer address */
image[0] = image[origin + 0];
image[1] = image[origin + 1];
@@ -174,14 +232,16 @@ int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, in
image[7] = image[origin + 7];
i = fwrite(image, 1, OF_FIRMWARE_LEN, f);
- if(i < OF_FIRMWARE_LEN) {
- perror(outfile);
+ if(i < OF_FIRMWARE_LEN)
+ {
+ fprintf(stderr,"[ERR] %s file write error\n", outfile);
fclose(f);
- return -9;
+ return -11;
}
- printf("Wrote 0x%x bytes in %s\n", OF_FIRMWARE_LEN, outfile);
-
+ fprintf(stderr,"[INFO] Wrote 0x%x bytes in %s\n", OF_FIRMWARE_LEN, outfile);
+ fprintf(stderr,"[INFO] Patching succeeded!\n");
+
fclose(f);
return 0;
diff --git a/rbutil/mkmpioboot/mkmpioboot.h b/rbutil/mkmpioboot/mkmpioboot.h
index 794f9df765..4828ac953e 100644
--- a/rbutil/mkmpioboot/mkmpioboot.h
+++ b/rbutil/mkmpioboot/mkmpioboot.h
@@ -28,6 +28,15 @@
extern "C" {
#endif
+/* Supported models */
+enum {
+ MODEL_UNKNOWN = -1,
+ MODEL_HD200 = 0,
+ MODEL_HD300,
+
+ NUM_MODELS
+};
+
int mkmpioboot(const char* infile, const char* bootfile, const char* outfile, int origin);
#ifdef __cplusplus
generated by cgit (git 2.34.1) at 2024-04-16 11:28:04 +0000