diff options
Diffstat (limited to 'kernel/drivers/ide.c')
| -rw-r--r-- | kernel/drivers/ide.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/kernel/drivers/ide.c b/kernel/drivers/ide.c index d637a2b..eda18e9 100644 --- a/kernel/drivers/ide.c +++ b/kernel/drivers/ide.c @@ -3,6 +3,7 @@ #include <cpu.h> #include <def.h> #include <ide.h> +#include <print.h> int ide_wait(int check) { @@ -18,24 +19,37 @@ int ide_wait(int check) return 0; } -void __attribute__((optimize("O0"))) * ide_read(void *b, u32 block) +// TODO: Fix strange print workaround +void *ide_read(void *b, u32 block) { int sector_per_block = BLOCK_SIZE / SECTOR_SIZE; // 2 int sector = block * sector_per_block; + print(""); ide_wait(0); + print(""); outb(IDE_IO | IDE_SECTOR_COUNT, sector_per_block); // Number of sectors + print(""); outb(IDE_IO | IDE_LOW, LBA_LOW(sector)); + print(""); outb(IDE_IO | IDE_MID, LBA_MID(sector)); + print(""); outb(IDE_IO | IDE_HIGH, LBA_HIGH(sector)); + print(""); // Slave/Master << 4 and last 4 bits + print(""); outb(IDE_IO | IDE_HEAD, 0xE0 | (1 << 4) | LBA_LAST(sector)); + print(""); outb(IDE_IO | IDE_CMD, IDE_CMD_READ); + print(""); ide_wait(0); + print(""); // Read-only + print(""); insl(IDE_IO, b, BLOCK_SIZE / 4); + print(""); return b; } |