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authorJörg Hohensohn <hohensoh@rockbox.org>2004-03-13 18:36:57 +0000
committerJörg Hohensohn <hohensoh@rockbox.org>2004-03-13 18:36:57 +0000
commit0499ffb7746d7a805f73c7249760ee067738edb3 (patch)
treee9701e7be2b0258ae475ba010fdf6f9cceeb4b97 /apps
parent06883bbcb980fde1194f080a2cbc4a2d8743dac7 (diff)
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The .ucl flasher now tells if the bootloader is not up to date. I hope that eases to phase out the old one with the flat battery problem.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4378 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps')
-rw-r--r--apps/plugins/rockbox_flash.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/apps/plugins/rockbox_flash.c b/apps/plugins/rockbox_flash.c
index eb04fbb566..25a97ea25c 100644
--- a/apps/plugins/rockbox_flash.c
+++ b/apps/plugins/rockbox_flash.c
@@ -259,6 +259,73 @@ tImageHeader* GetSecondImage(void)
}
+/* Tool function to calculate a CRC32 across some buffer */
+/* third argument is either 0xFFFFFFFF to start or value from last piece */
+UINT32 crc_32(unsigned char* buf, unsigned len, unsigned crc32)
+{
+ /* CCITT standard polynomial 0x04C11DB7 */
+ static const UINT32 crc32_lookup[16] =
+ { /* lookup table for 4 bits at a time is affordable */
+ 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9,
+ 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005,
+ 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61,
+ 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD
+ };
+
+ unsigned char byte;
+ UINT32 t;
+
+ while (len--)
+ {
+ byte = *buf++; /* get one byte of data */
+
+ /* upper nibble of our data */
+ t = crc32 >> 28; /* extract the 4 most significant bits */
+ t ^= byte >> 4; /* XOR in 4 bits of data into the extracted bits */
+ crc32 <<= 4; /* shift the CRC register left 4 bits */
+ crc32 ^= crc32_lookup[t]; /* do the table lookup and XOR the result */
+
+ /* lower nibble of our data */
+ t = crc32 >> 28; /* extract the 4 most significant bits */
+ t ^= byte & 0x0F; /* XOR in 4 bits of data into the extracted bits */
+ crc32 <<= 4; /* shift the CRC register left 4 bits */
+ crc32 ^= crc32_lookup[t]; /* do the table lookup and XOR the result */
+ }
+
+ return crc32;
+}
+
+
+/* test if the bootloader is up-to-date, returns 0 if yes, else CRC */
+unsigned CheckBootloader(void)
+{
+ unsigned crc;
+ UINT32* pFlash = (UINT32*)FB;
+
+ /* checksum the bootloader, unfortunately I have no version info yet */
+ crc = crc_32((unsigned char*)pFlash[2], pFlash[3], -1);
+
+ /* Here I have to check for ARCHOS_* defines in source code, which is
+ generally strongly discouraged. But here I'm not checking for a certain
+ feature, I'm checking for the model itself. */
+#if defined(ARCHOS_PLAYER)
+ if (crc == 0x78DAC94A)
+ return 0;
+#elif defined(ARCHOS_RECORDER)
+ if (crc == 0xE968702E || crc == 0x7C3D93B4) /* normal or ROMless each */
+ return 0;
+#elif defined(ARCHOS_RECORDERV2)
+ if (crc == 0x4511E9B5 || crc == 0x3A93DBDF)
+ return 0;
+#elif defined(ARCHOS_FMRECORDER)
+ if (crc == 0x4511E9B5 || crc == 0x3A93DBDF)
+ return 0;
+#endif
+
+ return crc;
+}
+
+
/*********** Image File Functions ************/
/* so far, only compressed images in UCL NRV algorithm 2e supported */
@@ -532,6 +599,7 @@ void DoUserDialog(char* filename, bool show_greet)
UINT32 space, aligned_size, true_size;
UINT8* pos;
int memleft;
+ UINT32 crc;
rb->lcd_setfont(FONT_SYSFIXED);
@@ -559,6 +627,27 @@ void DoUserDialog(char* filename, bool show_greet)
rb->splash(HZ*3, true, "No image");
return; /* exit */
}
+
+ crc = CheckBootloader();
+ if (crc) /* outdated version found */
+ {
+ rb->snprintf(buf, sizeof(buf), " (CRC=0x%08x) ", crc);
+ rb->lcd_puts(0, 0, buf);
+ rb->lcd_puts(0, 1, "Hint: You're not ");
+ rb->lcd_puts(0, 2, "using the latest ");
+ rb->lcd_puts(0, 3, "bootloader. ");
+ rb->lcd_puts(0, 4, "A full reflash is ");
+ rb->lcd_puts(0, 5, "recommended, but ");
+ rb->lcd_puts(0, 6, "not required. ");
+ rb->lcd_puts(0, 7, "Press F1 to ignore");
+ rb->lcd_update();
+
+ if (WaitForButton() != BUTTON_F1)
+ {
+ return;
+ }
+ rb->lcd_clear_display();
+ }
if (show_greet)
{
@@ -710,6 +799,7 @@ void DoUserDialog(char* filename, bool show_greet)
UINT32 space, aligned_size, true_size;
UINT8* pos;
int memleft;
+ UINT32 crc;
/* "allocate" memory */
sector = rb->plugin_get_buffer(&memleft);
@@ -739,6 +829,19 @@ void DoUserDialog(char* filename, bool show_greet)
return; /* exit */
}
+ crc = CheckBootloader();
+ if (crc) /* outdated version found */
+ {
+ rb->lcd_puts_scroll(0, 0, "Hint: You're not using the latest bootloader. A full reflash is recommended, but not required.");
+ rb->lcd_puts_scroll(0, 1, "Press [Menu] to ignore");
+
+ if (WaitForButton() != BUTTON_MENU)
+ {
+ return;
+ }
+ rb->lcd_clear_display();
+ }
+
if (show_greet)
{
rb->snprintf(buf, sizeof(buf), "File: %s", filename);