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authorMarcoen Hirschberg <marcoen@gmail.com>2006-12-29 02:49:12 +0000
committerMarcoen Hirschberg <marcoen@gmail.com>2006-12-29 02:49:12 +0000
commit295367686ec9855c4d90f68a6003e819fef8e7ab (patch)
treeb4077ffb8d2283bf199ad12a90322be77040c2fd /bootloader
parent995a804defda23233ccbdd859023f4ba3ecba0bf (diff)
downloadrockbox-295367686ec9855c4d90f68a6003e819fef8e7ab.tar.gz
rockbox-295367686ec9855c4d90f68a6003e819fef8e7ab.tar.bz2
rockbox-295367686ec9855c4d90f68a6003e819fef8e7ab.zip
merge a big part of the unofficial gigabeat cvs back. Includes working bootloader and rockbox with audio.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11850 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'bootloader')
-rw-r--r--bootloader/gigabeat.c367
1 files changed, 359 insertions, 8 deletions
diff --git a/bootloader/gigabeat.c b/bootloader/gigabeat.c
index c04042cead..62c31310ae 100644
--- a/bootloader/gigabeat.c
+++ b/bootloader/gigabeat.c
@@ -17,12 +17,133 @@
#include "panic.h"
#include "power.h"
#include "file.h"
+#include "button-target.h"
+
+void map_memory(void);
+
+int line = 0;
char version[] = APPSVERSION;
-void go_usb_mode(void) {
+/* This section allows you to toggle bits of any memory location */
+/* Touchpad to move around the bits. Select to toggle the red bit */
+typedef struct {
+ unsigned int address;
+ char *desc;
+} memlocation_struct;
+
+/* Just add any address and descriptions here */
+/* Must finish with 0xFFFFFFFF */
+const memlocation_struct memlocations[] = {
+/* Address Description */
+{ 0x56000000, "GPACON" },
+{ 0x56000004, "GPADAT" },
+{ 0x56000010, "GPBCON" },
+{ 0x56000014, "GPBDAT" },
+{ 0x56000020, "GPCCON" },
+{ 0x56000024, "GPCDAT" },
+{ 0x56000030, "GPDCON" },
+{ 0x56000034, "GPDDAT" },
+{ 0x56000040, "GPECON" },
+{ 0x56000044, "GPEDAT" },
+{ 0x56000050, "GPFCON" },
+{ 0x56000054, "GPFDAT" },
+{ 0x56000060, "GPGCON" },
+{ 0x56000064, "GPGDAT" },
+{ 0x56000070, "GPHCON" },
+{ 0x56000074, "GPHDAT" },
+{ 0xFFFFFFFF, 0 }
+};
+
+void memdump(void)
+{
+ int i, j;
+ int current=0, bit=0;
+ char * bitval;
+ int data;
+ char tmp[40];
+
+ while(1) {
+ i = 0;
+
+ while(memlocations[i].address != 0xFFFFFFFF) {
+
+ data = *(volatile int *)memlocations[i].address;
+
+ snprintf(tmp, sizeof(tmp), "%s %s 0x%08X",
+ (i==current) ? "*" : " ",
+ memlocations[i].desc,
+ data);
+ lcd_puts(0, i*2+5, tmp);
+
+ /* print out in binary, current bit in red */
+ for (j=31; j>=0; j--) {
+ if ((bit == j) && (current == i))
+ lcd_set_foreground(LCD_RGBPACK(255,0,0));
+ lcd_puts((31-j) + ((31-j) / 8), i*2+6, (data & (1 << j)) ? "1" : "0" );
+ lcd_set_foreground(LCD_RGBPACK(0,0,0));
+ }
+
+ i++;
+ }
+
+ data = *(volatile int *)memlocations[current].address;
+ bitval = (data & (1 << bit)) ? "1" : "0";
+ snprintf(tmp, sizeof(tmp), "%s bit %ld = %s", memlocations[current].desc, bit, bitval);
+ lcd_puts(0, (i*2)+7, tmp);
+
+ lcd_update();
+
+ /* touchpad controls */
+
+ /* Up */
+ if (GPJDAT & 0x01) {
+ if (current > 0)
+ current--;
+ while(GPJDAT & 0x01);
+ }
+
+ /* Down */
+ if (GPJDAT & 0x40) {
+ if (current < (i-1))
+ current++;
+ while(GPJDAT & 0x40);
+ }
+
+ /* Left */
+ if (GPJDAT & 0x80) {
+ if (bit < 31)
+ bit++;
+ while(GPJDAT & 0x80);
+ }
+
+ /* Right */
+ if (GPJDAT & 0x1000) {
+ if (bit > 0)
+ bit--;
+ while(GPJDAT & 0x1000);
+ }
+
+ /* Centre - Toggle Bit */
+ if (GPJDAT & 0x08) {
+ data = *(volatile int *)memlocations[current].address;
+ data = data ^ (1 << bit);
+ *(volatile int *)memlocations[current].address = data;
+ while(GPJDAT & 0x08);
+ }
+
+ /* Bail out if the power button is pressed */
+ if (GPGDAT & 1) {
+ break;
+ }
+ }
+}
+
+
+static void go_usb_mode(void) {
/* Drop into USB mode. This does not check for disconnection. */
+
int i;
GPBDAT &= 0x7EF;
@@ -34,17 +155,160 @@ void go_usb_mode(void) {
for (i = 0; i < 10000000; i++) {continue;}
GPBCON &= 0x2FFCFF;
- GPBDAT |= 1<<5;
+ GPBDAT |= 1<<5;
GPBDAT |= 1<<6;
}
+
+/* Restores a factory kernel/bootloader from a known location */
+/* Restores the FWIMG01.DAT file back in the case of a bootloader failure */
+/* The factory or "good" bootloader must be in /GBSYSTEM/FWIMG/FWIMG01.DAT.ORIG */
+/* Returns non-zero on failure */
+int restore_fwimg01dat(void)
+{
+ int orig_file = 0, dest_file = 0;
+ int size = 0, size_read;
+ char buf[256];
+ char lcd_buf[64];
+
+ orig_file = open("/GBSYSTEM/FWIMG/FWIMG01.DAT.ORIG", O_RDONLY);
+ if (orig_file < 0) {
+ /* Couldn't open source file */
+ lcd_puts(0, line++, "Couldn't open FWIMG01.DAT.ORIG for reading");
+ lcd_update();
+ return(1);
+ }
+
+ lcd_puts(0, line++, "FWIMG01.DAT.ORIG opened for reading");
+ lcd_update();
+
+ dest_file = open("/GBSYSTEM/FWIMG/FWIMG01.DAT", O_RDWR);
+ if (dest_file < 0) {
+ /* Couldn't open destination file */
+ lcd_puts(0, line++, "Couldn't open FWIMG01.DAT.ORIG for writing");
+ lcd_update();
+ close(orig_file);
+ return(2);
+ }
+
+ lcd_puts(0, line++, "FWIMG01.DAT opened for writing");
+ lcd_update();
+
+ do {
+ /* Copy in chunks */
+ size_read = read(orig_file, buf, sizeof(buf));
+ if (size_read != write(dest_file, buf, size_read)) {
+ close(orig_file);
+ close(dest_file);
+ return(3);
+ }
+ size += size_read;
+
+ } while (size_read > 0);
+
+ close(orig_file);
+ close(dest_file);
+
+ snprintf(lcd_buf, sizeof(lcd_buf), "Finished copying %ld bytes from", size);
+ lcd_puts(0, line++, lcd_buf);
+ lcd_puts(0, line++, "FWIMG01.DAT.ORIG to FWIMG01.DAT");
+
+ return(0);
+}
+
+
+int load_rockbox(const char* file_name, unsigned char* buf, int buffer_size)
+{
+ int fd;
+ int rc;
+ int len;
+ char str[256];
+ //unsigned long chksum;
+ //char model[5];
+ //unsigned long sum;
+ //int i;
+ //char str[80];
+
+ fd = open("/.rockbox/" BOOTFILE, O_RDONLY);
+ if(fd < 0)
+ {
+ fd = open("/" BOOTFILE, O_RDONLY);
+ if(fd < 0)
+ return -1;
+ }
+ fd = open(file_name, O_RDONLY);
+ if(fd < 0)
+ return -2;
+
+ len = filesize(fd);
+
+ if (len > buffer_size) {
+ snprintf(str, sizeof(str), "len: %d buf: %d", len, buffer_size);
+ lcd_puts(0, line++, str);
+ lcd_update();
+ return -6;
+ }
+
+ /*lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
+
+ rc = read(fd, &chksum, 4);
+ chksum=betoh32(chksum);*/ /* Rockbox checksums are big-endian */
+ /*if(rc < 4)
+ return -2;
+
+ rc = read(fd, model, 4);
+ if(rc < 4)
+ return -3;
+
+ model[4] = 0;
+
+ snprintf(str, 80, "Model: %s", model);
+ lcd_puts(0, line++, str);
+ snprintf(str, 80, "Checksum: %x", chksum);
+ lcd_puts(0, line++, str);
+ lcd_update();
+
+ lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
+*/
+
+ rc = read(fd, buf, len);
+ if(rc < len) {
+ snprintf(str, sizeof(str), "len: %d rc: %d", len, rc);
+ lcd_puts(0, line++, str);
+ lcd_update();
+ return -4;
+ }
+
+ close(fd);
+
+ /*sum = MODEL_NUMBER;
+
+ for(i = 0;i < len;i++) {
+ sum += buf[i];
+ }
+
+ snprintf(str, 80, "Sum: %x", sum);
+ lcd_puts(0, line++, str);
+ lcd_update();
+
+ if(sum != chksum)
+ return -5;*/
+
+ return len;
+}
+
void * main(void)
{
- int line = 0, i;
+ int i;
char buf[256];
struct partinfo* pinfo;
unsigned short* identify_info;
- int testfile;
+ //int testfile;
+ unsigned char* loadbuffer;
+ int buffer_size;
+ bool load_original = false;
+ int rc;
+ int(*kernel_entry)(void);
lcd_init();
lcd_setfont(FONT_SYSFIXED);
@@ -57,7 +321,10 @@ void * main(void)
*/
lcd_puts(0, line++, "Hold MENU when booting for rescue mode.");
+ lcd_puts(0, line++, " \"VOL+\" button to restore original kernel");
+ lcd_puts(0, line++, " \"A\" button to load original firmware");
lcd_update();
+ sleep(1*HZ);
/* hold MENU to enter rescue mode */
if (GPGDAT & 2) {
@@ -67,12 +334,44 @@ void * main(void)
while(1);
}
+ sleep(5*HZ);
+
+ if(GPGDAT & 0x10) {
+ load_original = true;
+ lcd_puts(0, line++, "Loading original firmware...");
+ lcd_update();
+ }
+
i = ata_init();
i = disk_mount_all();
snprintf(buf, sizeof(buf), "disk_mount_all: %d", i);
lcd_puts(0, line++, buf);
+ /* hold VOL+ to enter rescue mode to copy old image */
+ /* needs to be after ata_init and disk_mount_all */
+ if (GPGDAT & 4) {
+
+ /* Try to restore the original kernel/bootloader if a copy is found */
+ lcd_puts(0, line++, "Restoring FWIMG01.DAT...");
+ lcd_update();
+
+ if (!restore_fwimg01dat()) {
+ lcd_puts(0, line++, "Restoring FWIMG01.DAT successful.");
+ } else {
+ lcd_puts(0, line++, "Restoring FWIMG01.DAT failed.");
+ }
+
+ lcd_puts(0, line++, "Now power cycle to boot original");
+ lcd_update();
+ while(1);
+ }
+
+ /* Memory dump mode if Vol- pressed */
+ if (GPGDAT & 8) {
+ memdump();
+ }
+
identify_info = ata_get_identify();
for (i=0; i < 20; i++)
@@ -96,16 +395,68 @@ void * main(void)
lcd_puts(0, line++, buf);
pinfo = disk_partinfo(0);
- snprintf(buf, sizeof(buf), "Partition 0: 0x%02x %ld MB",
+ snprintf(buf, sizeof(buf), "Partition 0: 0x%02x %ld MB",
pinfo->type, pinfo->size / 2048);
lcd_puts(0, line++, buf);
+ lcd_update();
+
+ /* Load original firmware */
+ if(load_original) {
+ loadbuffer = (unsigned char*)0x30008000;
+ buffer_size =(unsigned char*)0x31000000 - loadbuffer;
+ rc = load_rockbox("/rockbox.gigabeat", loadbuffer, buffer_size);
+ if (rc < 0) {
+ lcd_puts(0, line++, "failed to load original firmware. Loading rockbox");
+ lcd_update();
+ sleep(2*HZ);
+ goto load_rockbox;
+ }
- testfile = open("/boottest.txt", O_WRONLY|O_CREAT|O_TRUNC);
- write(testfile, "It works!", 9);
- close(testfile);
+ snprintf(buf, sizeof(buf), "Loaded: %d", rc);
+ lcd_puts(0, line++, buf);
+ lcd_update();
+ sleep(2*HZ);
+
+
+ (*((int*)0x7000000)) = 333;
+ rc = *((int*)0x7000000+0x8000000);
+ snprintf(buf, sizeof(buf), "Bank0 mem test: %d", rc);
+ lcd_puts(0, line++, buf);
+ lcd_update();
+ sleep(3*HZ);
+
+ lcd_puts(0, line++, "Woops, should not return from firmware!");
+ lcd_update();
+ goto usb;
+ }
+load_rockbox:
+ map_memory();
+ lcd_puts(0, line, "Loading Rockbox...");
lcd_update();
+ sleep(HZ*4);
+
+ // TODO: read those values from somwhere
+ loadbuffer = (unsigned char*) 0x100;
+ buffer_size = (unsigned char*)0x400000 - loadbuffer;
+ rc=load_rockbox("/rockbox.gigabeat", loadbuffer, buffer_size);
+ if (rc < 0) {
+ snprintf(buf, sizeof(buf), "Rockbox error: %d",rc);
+ lcd_puts(0, line++, buf);
+ lcd_update();
+ } else {
+ lcd_puts(0, line++, "Rockbox loaded.");
+ lcd_update();
+ kernel_entry = (void*)0x100;
+ rc = kernel_entry();
+ snprintf(buf, sizeof(buf), "Woops, should not return from firmware: %d", rc);
+ lcd_puts(0, line++, buf);
+ lcd_update();
+ goto usb;
+ }
+
+usb:
/* now wait in USB mode so the bootloader can be updated */
go_usb_mode();
while(1);