From c2ca8c710c9841892ca8123e39d2acdf0a0e5de3 Mon Sep 17 00:00:00 2001
From: Nicolas Pennequin <nicolas.pennequin@free.fr>
Date: Tue, 27 Nov 2007 15:40:29 +0000
Subject: [PATCH] * Make the Gigabeat S bootloader a bit more interesting: it
 looks for the first firmware file it finds on the second partition and
 attempts to load it. Loading fails to get past the splash screen though. *
 Make the main binary compile. To send a firmware file, use mtp-sendfile. To
 update you'll need to delete the previous firmware file, as files are named
 sequentially and the first one is loaded.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15836 a1c6a512-1295-4272-9138-f99709370657
---
 bootloader/gigabeat-s.c                       | 50 +++++++++++++++----
 firmware/app.lds                              |  2 +-
 firmware/common/disk.c                        |  7 ++-
 firmware/export/config-gigabeat-s.h           |  2 +-
 .../arm/imx31/gigabeat-s/system-target.h      |  2 +
 5 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/bootloader/gigabeat-s.c b/bootloader/gigabeat-s.c
index 25b9ab5f35..d692dcba09 100644
--- a/bootloader/gigabeat-s.c
+++ b/bootloader/gigabeat-s.c
@@ -28,6 +28,7 @@
 #include "kernel.h"
 #include "thread.h"
 #include "ata.h"
+#include "dir.h"
 #include "fat.h"
 #include "disk.h"
 #include "font.h"
@@ -47,13 +48,18 @@
 #include <stdarg.h>
 
 char version[] = APPSVERSION;
+char buf[MAX_PATH];
+char basedir[] = "/Content/0b00/00/"; /* Where files sent via MTP are stored */
+char model[5];
+int (*kernel_entry)(void);
 
 void main(void)
 {
     lcd_clear_display();
     printf("Hello world!");
-    printf("Gigabeat S Rockbox Bootloader v.00000001");          
+    printf("Gigabeat S Rockbox Bootloader v.00000001");
     kernel_init();
+    printf("kernel init done");
     int rc;
 
     rc = ata_init();
@@ -62,8 +68,10 @@ void main(void)
         reset_screen();
         error(EATA, rc);
     }
+    printf("ata init done");
 
     disk_init();
+    printf("disk init done");
 
     rc = disk_mount_all();
     if (rc<=0)
@@ -71,24 +79,48 @@ void main(void)
         error(EDISK,rc);
     }
 
-    printf("Congratulations!");
-    while(1);
+    /* Look for the first valid firmware file */
+    struct dirent_uncached* entry;
+    DIR_UNCACHED* dir;
+    int fd;
+    dir = opendir_uncached(basedir);
+    while ((entry = readdir_uncached(dir)))
+    {
+        if (*entry->d_name != '.')
+        {
+            snprintf(buf, sizeof(buf), "%s%s", basedir, entry->d_name);
+            fd = open(buf, O_RDONLY);
+            if (fd >= 0)
+            {
+                lseek(fd, 4, SEEK_SET);
+                rc = read(fd, model, 4);
+                close(fd);
+                if (rc == 4)
+                {
+                    model[4] = 0;
+                    if (strcmp(model, "gigs") == 0)
+                        break;
+                }
+            }
+        }
+    }
 
-#if 0
+    printf("Firmware file: %s", buf);
     printf("Loading firmware");
 
-    loadbuffer = (unsigned char*) 0x100;
-    buffer_size = (unsigned char*)0x400000 - loadbuffer;
+    unsigned char *loadbuffer = (unsigned char *)0x88000000;
+    int buffer_size = 1024*1024;
 
-    rc = load_firmware(loadbuffer, BOOTFILE, buffer_size);
+    rc = load_firmware(loadbuffer, buf, buffer_size);
     if(rc < 0)
-        error(EBOOTFILE, rc);
+        error(buf, rc);
 
     if (rc == EOK)
     {
         kernel_entry = (void*) loadbuffer;
         rc = kernel_entry();
     }
-#endif
+
+    while (1);
 }
 
diff --git a/firmware/app.lds b/firmware/app.lds
index d88ce9fd60..87f3d2ae23 100644
--- a/firmware/app.lds
+++ b/firmware/app.lds
@@ -70,7 +70,7 @@ INPUT(target/sh/crt0.o)
 #define IRAMORIG 0x00000000
 #define IRAMSIZE 0x4000
 #elif CONFIG_CPU==IMX31L
-#define DRAMORIG (0x80000000 + STUBOFFSET)
+#define DRAMORIG (0x88000000 + STUBOFFSET)
 #define IRAMORIG 0x1FFFC000
 #define IRAMSIZE 0x4000
 #else
diff --git a/firmware/common/disk.c b/firmware/common/disk.c
index 563bb05ec1..e3cf8391ed 100644
--- a/firmware/common/disk.c
+++ b/firmware/common/disk.c
@@ -150,7 +150,12 @@ int disk_mount(int drive)
     /* The Elio's hard drive has no partition table and probing for partitions causes
        Rockbox to crash - so we temporarily disable the probing until we fix the
        real problem. */
-    for (i=0; volume != -1 && i<4; i++)
+#ifdef TOSHIBA_GIGABEAT_S
+    i = 1;  /* For the Gigabeat S, we mount the second partition */
+#else
+    i = 0;
+#endif
+    for (i; volume != -1 && i<4; i++)
     {
 #ifdef MAX_LOG_SECTOR_SIZE
         int j;
diff --git a/firmware/export/config-gigabeat-s.h b/firmware/export/config-gigabeat-s.h
index 285b381480..c6de206d8c 100644
--- a/firmware/export/config-gigabeat-s.h
+++ b/firmware/export/config-gigabeat-s.h
@@ -6,7 +6,7 @@
 #define TOSHIBA_GIGABEAT_S 1
 
 /* For Rolo and boot loader */
-#define MODEL_NUMBER 19
+#define MODEL_NUMBER 21
 
 /* define this if you have a bitmap LCD display */
 #define HAVE_LCD_BITMAP
diff --git a/firmware/target/arm/imx31/gigabeat-s/system-target.h b/firmware/target/arm/imx31/gigabeat-s/system-target.h
index b1803d01cb..e87b93b13a 100644
--- a/firmware/target/arm/imx31/gigabeat-s/system-target.h
+++ b/firmware/target/arm/imx31/gigabeat-s/system-target.h
@@ -30,6 +30,8 @@ static inline void udelay(unsigned int usecs)
     while (EPITCNT1 > stop);
 }
 
+#define __dbg_hw_info(...) 0
+#define __dbg_ports(...) 0
 
 #define HAVE_INVALIDATE_ICACHE
 static inline void invalidate_icache(void)