Bootloader support to search firmware also from flash. Bootloader <->

Rockbox communication when Rockbox has been flashed.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10499 a1c6a512-1295-4272-9138-f99709370657

apps/main.c

@@ -120,7 +120,9 @@ int init_dircache(void)
 # ifdef HAVE_EEPROM
         if (firmware_settings.initialized && firmware_settings.disk_clean)
         {
-            if (dircache_load(DIRCACHE_FILE) == 0)
+            result = dircache_load(DIRCACHE_FILE);
+            remove(DIRCACHE_FILE);
+            if (result == 0)
                 return 0;
         }
 # endif

apps/plugins/iriver_flash.c

@@ -381,12 +381,13 @@ void show_fatal_error(void)
 
 int flash_bootloader(const char *filename)
 {
-    // char buf[32];
+    char buf[32];
     int pos, i, len, rc;
     unsigned long checksum, sum, crc32;
     unsigned char *p8;
     uint16_t *p16;
     
+    (void)buf;
     len = load_firmware_file(filename, &checksum);
     if (len < 0)
         return len * 10;
@@ -399,15 +400,16 @@ int flash_bootloader(const char *filename)
     
     /* Verify the crc32 checksum also. */
     crc32 = crc_32(audiobuf, len, 0xffffffff);
-    // rb->snprintf(buf, sizeof buf, "crc32 = 0x%08x", crc32);
+#if 0
-    // rb->splash(HZ*10, true, buf);
+    rb->snprintf(buf, sizeof buf, "crc32 = 0x%08x", crc32);
-    
+    rb->splash(HZ*10, true, buf);
-    if (crc32 != 0x5361a679)
+#else
+    if (crc32 != 0xa930906d)
     {
         rb->splash(HZ*3, true, "Untested bootloader");
         return -2;
     }
-    
+#endif
     rb->lcd_puts(0, 3, "Processing critical sections...");
     rb->lcd_update();
 

apps/plugins/viewers.config

@@ -22,3 +22,4 @@ wav,viewers/mp3_encoder, 00 00 00 00 00 00
 wav,viewers/wavplay,60 7F 05 35 3F 00
 bmp,rocks/rockpaint, 01 10 01 10 01 10
 m2v,viewers/mpegplayer,5D 7F 5D 7F 5D 7F
+iriver,viewers/iriver_flash,2A 7F 41 41 7F 2A

bootloader/main.c

@@ -20,6 +20,8 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+#include "inttypes.h"
+#include "string.h"
 #include "cpu.h"
 #include "system.h"
 #include "lcd.h"
@@ -39,6 +41,7 @@
 #include "power.h"
 #include "file.h"
 #include "uda1380.h"
+#include "eeprom_settings.h"
 
 #include "pcf50606.h"
 
@@ -151,6 +154,21 @@ int load_firmware(void)
     return 0;
 }
 
+int load_flashed_rockbox(void)
+{
+    struct flash_header hdr;
+    unsigned char *buf = (unsigned char *)DRAM_START;
+    uint8_t *src = (uint8_t *)FLASH_ENTRYPOINT;
+    
+    cpu_boost(true);
+    memcpy(&hdr, src, sizeof(struct flash_header));
+    src += sizeof(struct flash_header);
+    memcpy(buf, src, hdr.length);
+    cpu_boost(false);
+
+    return 0;
+}
+
 
 void start_firmware(void)
 {
@@ -171,12 +189,14 @@ void main(void)
     int rc;
     bool rc_on_button = false;
     bool on_button = false;
+    bool rec_button = false;
     int data;
     int adc_battery, battery_voltage, batt_int, batt_frac;
 
 #ifdef IAUDIO_X5
     (void)rc_on_button;
     (void)on_button;
+    (void)rec_button;
     (void)data;
     power_init();
 
@@ -311,13 +331,66 @@ void main(void)
     lcd_update();
 
     sleep(HZ/50); /* Allow the button driver to check the buttons */
+    rec_button = ((button_status() & BUTTON_REC) == BUTTON_REC) 
+        || ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC);
     
-    /* Holding REC while starting runs the original firmware */
+
-    if(((button_status() & BUTTON_REC) == BUTTON_REC) ||
+#ifdef HAVE_EEPROM
-       ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC)) {
+    firmware_settings.initialized = false;
-        printf("Starting original firmware...");
+#endif
+    if (detect_flashed_rockbox())
+    {
+        bool load_from_flash;
+        
+        load_from_flash = !rec_button;
+#ifdef HAVE_EEPROM
+        if (eeprom_settings_init())
+        {
+            /* If bootloader version has not been reset, disk might
+             * not be intact. */
+            if (firmware_settings.bl_version)
+                firmware_settings.disk_clean = false;
+            
+            firmware_settings.bl_version = 7;
+            /* Invert the record button if we want to load from disk
+             * by default. */
+            if (firmware_settings.boot_disk)
+                load_from_flash = rec_button;
+        }
+#endif
+        
+        if (load_from_flash)
+        {
+            /* Load firmware from flash */
+            i = load_flashed_rockbox();
+            printf("Result: %d", i);
+            lcd_update();
+            if (i == 0)
+            {
+#ifdef HAVE_EEPROM
+                eeprom_settings_store();
+#endif
+                start_firmware();
+                printf("Fatal: Corrupted firmware");
+                printf("Hold down REC on next boot");
+                lcd_update();
+                sleep(HZ*2);
+                power_off();
+            }
+        }
+        
+        printf("Loading from disk...");
         lcd_update();
-        start_iriver_fw();
+    }
+    else
+    {
+        /* Holding REC while starting runs the original firmware */
+        if (rec_button)
+        {
+            printf("Starting original firmware...");
+            lcd_update();
+            start_iriver_fw();
+        }
     }
 
     /* Don't start if the Hold button is active on the device you
@@ -384,6 +457,13 @@ void main(void)
         sleep(HZ);
 #endif
     
+#ifdef HAVE_EEPROM
+        if (firmware_settings.initialized)
+        {
+            firmware_settings.disk_clean = false;
+            eeprom_settings_store();
+        }
+#endif
         ata_spin();
         ata_enable(false);
         usb_enable(true);
@@ -423,6 +503,11 @@ void main(void)
     printf("Result: %d", i);
     lcd_update();
 
+#ifdef HAVE_EEPROM
+    if (firmware_settings.initialized)
+        eeprom_settings_store();
+#endif
+    
     if(i == 0)
         start_firmware();
     

firmware/drivers/eeprom_24cxx.c

@@ -82,10 +82,6 @@ static void sw_i2c_start(void)
 
 static void sw_i2c_stop(void)
 {
-   // SCL_LO;
-   // DELAY;
-   // SDA_LO;
-   // DELAY;
     SCL_HI;
     DELAY;
     SDA_HI;
@@ -294,7 +290,7 @@ int eeprom_24cxx_read_byte(unsigned int address, char *c)
         if (ret < 0)
         {
             /* keep between {} as logf is whitespace in normal builds */
-            logf("EEPROM Fail: %d/%d", ret, address);
+            logf("EEPROM rFail: %d/%d", ret, address);
         }
     } while (ret < 0 && count--);
 
@@ -325,7 +321,7 @@ int eeprom_24cxx_write_byte(unsigned int address, char c)
         if (ret < 0)
         {
             /* keep between {} as logf is whitespace in normal builds */
-            logf("EEPROM Fail: %d/%d", ret, address);
+            logf("EEPROM wFail: %d/%d", ret, address);
         }
     } while (ret < 0 && count--) ;
 
@@ -357,7 +353,7 @@ int eeprom_24cxx_read(unsigned char address, void *dest, int length)
 int eeprom_24cxx_write(unsigned char address, const void *src, int length)
 {
     const char *buf = (const char *)src;
-    int count = 10;
+    int count = 5;
     int i;
     bool ok;
     

firmware/eeprom_settings.c

@@ -21,6 +21,7 @@
 #include "eeprom_24cxx.h"
 #include "crc32.h"
 
+#include "system.h"
 #include "string.h"
 #include "logf.h"
 
@@ -64,16 +65,17 @@ bool eeprom_settings_init(void)
     sum = crc_32(&firmware_settings, sizeof(struct eeprom_settings)-4,
                  0xffffffff);
     
-    if (firmware_settings.checksum != sum)
+    logf("BL version: %d", firmware_settings.bl_version);
+    if (firmware_settings.version != EEPROM_SETTINGS_VERSION)
     {
-        logf("Checksum mismatch");
+        logf("Version mismatch");
         reset_config();
         return true;
     }
     
-    if (firmware_settings.version != EEPROM_SETTINGS_VERSION)
+    if (firmware_settings.checksum != sum)
     {
-        logf("Version mismatch");
+        logf("Checksum mismatch");
         reset_config();
         return true;
     }

firmware/export/config-h300.h

@@ -124,6 +124,10 @@
 #define BOOTFILE_EXT "iriver"
 #define BOOTFILE "rockbox." BOOTFILE_EXT
 
+#define BOOTLOADER_ENTRYPOINT  0x001F0000
+#define FLASH_ENTRYPOINT       0x00001000
+#define FLASH_MAGIC            0xfbfbfbf1
+
 #define HAVE_BACKLIGHT_BRIGHTNESS
 
 /* define this if the unit can be powered or charged via USB */

firmware/export/eeprom_settings.h

@@ -40,7 +40,6 @@ struct eeprom_settings
 
 extern struct eeprom_settings firmware_settings;
 
-bool detect_flashed_rockbox(void);
 bool eeprom_settings_init(void);
 bool eeprom_settings_store(void);