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Fix bug accessing data above 4Gb in Sansa

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11828 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Ankers 2006-12-21 18:32:47 +00:00
parent d359193bd8
commit a26519680a
1 changed files with 6 additions and 5 deletions
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11
firmware/target/arm/sandisk/sansa-e200/ata-e200.c
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@ -32,6 +32,7 @@
#define BLOCK_SIZE (512)
#define SECTOR_SIZE (512)
#define BLOCKS_PER_BANK 0x7a7800
#define STATUS_REG (*(volatile unsigned int *)(0x70008204))
#define REG_1 (*(volatile unsigned int *)(0x70008208))
@ -440,7 +441,7 @@ void sd_init_device(void)
BLOCK_SIZE_REG = card->block_size;
/* If this card is > 4Gb, then we need to enable bank switching */
if(card->numblocks > 0x7a77ff)
if(card->numblocks >= BLOCKS_PER_BANK)
{
SD_STATE_REG = TRAN;
BLOCK_COUNT_REG = 1;
@ -502,10 +503,10 @@ int ata_read_sectors(IF_MV2(int drive,)
/* TODO: Select device */
if(current_card == 0)
{
if(start > 0x7a77ff)
if(start >= BLOCKS_PER_BANK)
{
sd_select_bank(1);
start-=0x7a77ff;
start -= BLOCKS_PER_BANK;
} else {
sd_select_bank(0);
}
@ -571,12 +572,12 @@ int ata_write_sectors(IF_MV2(int drive,)
ata_led(true);
if(current_card == 0)
{
if(start <= 0x7a77ff)
if(start < BLOCKS_PER_BANK)
{
sd_select_bank(0);
} else {
sd_select_bank(1);
start -= 0x7a77ff;
start -= BLOCKS_PER_BANK;
}
}