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path: root/drivers/ide/h8300/ide-h8300.c
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Diffstat (limited to 'drivers/ide/h8300/ide-h8300.c')
-rw-r--r--drivers/ide/h8300/ide-h8300.c108
1 files changed, 102 insertions, 6 deletions
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index fd23f12e17a..ecf53bb0d2a 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -42,6 +42,91 @@ static u16 mm_inw(unsigned long a)
return r;
}
+static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+ u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+
+ if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ HIHI = 0xFF;
+
+ ide_set_irq(drive, 1);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DATA)
+ mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+ outb(tf->hob_feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+ outb(tf->hob_nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+ outb(tf->hob_lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+ outb(tf->hob_lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+ outb(tf->hob_lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ outb(tf->feature, io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+ outb(tf->nsect, io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+ outb(tf->lbal, io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+ outb(tf->lbam, io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+ outb(tf->lbah, io_ports->lbah_addr);
+
+ if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+ outb((tf->device & HIHI) | drive->select.all,
+ io_ports->device_addr);
+}
+
+static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ struct ide_taskfile *tf = &task->tf;
+
+ if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+ u16 data = mm_inw(io_ports->data_addr);
+
+ tf->data = data & 0xff;
+ tf->hob_data = (data >> 8) & 0xff;
+ }
+
+ /* be sure we're looking at the low order bits */
+ outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+ tf->nsect = inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+ tf->lbal = inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+ tf->lbam = inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+ tf->lbah = inb(io_ports->lbah_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+ tf->device = inb(io_ports->device_addr);
+
+ if (task->tf_flags & IDE_TFLAG_LBA48) {
+ outb(drive->ctl | 0x80, io_ports->ctl_addr);
+
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+ tf->hob_feature = inb(io_ports->feature_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+ tf->hob_nsect = inb(io_ports->nsect_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+ tf->hob_lbal = inb(io_ports->lbal_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+ tf->hob_lbam = inb(io_ports->lbam_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+ tf->hob_lbah = inb(io_ports->lbah_addr);
+ }
+}
+
static void mm_outsw(unsigned long addr, void *buf, u32 len)
{
unsigned short *bp = (unsigned short *)buf;
@@ -56,6 +141,18 @@ static void mm_insw(unsigned long addr, void *buf, u32 len)
*bp = bswap(*(volatile u16 *)addr);
}
+static void h8300_input_data(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
+}
+
+static void h8300_output_data(ide_drive_t *drive, struct request *rq,
+ void *buf, unsigned int len)
+{
+ mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
+}
+
#define H8300_IDE_GAP (2)
static inline void hw_setup(hw_regs_t *hw)
@@ -74,12 +171,11 @@ static inline void hwif_setup(ide_hwif_t *hwif)
{
default_hwif_iops(hwif);
- hwif->OUTW = mm_outw;
- hwif->OUTSW = mm_outsw;
- hwif->INW = mm_inw;
- hwif->INSW = mm_insw;
- hwif->OUTSL = NULL;
- hwif->INSL = NULL;
+ hwif->tf_load = h8300_tf_load;
+ hwif->tf_read = h8300_tf_read;
+
+ hwif->input_data = h8300_input_data;
+ hwif->output_data = h8300_output_data;
}
static int __init h8300_ide_init(void)