}
EXPORT_SYMBOL_GPL(ide_read_altstatus);
-void ide_set_irq(ide_hwif_t *hwif, int on)
+void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)
{
- u8 ctl = ATA_DEVCTL_OBS;
-
- if (on == 4) { /* hack for SRST */
- ctl |= 4;
- on &= ~4;
- }
-
- ctl |= on ? 0 : 2;
-
if (hwif->host_flags & IDE_HFLAG_MMIO)
writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
else
outb(ctl, hwif->io_ports.ctl_addr);
}
-EXPORT_SYMBOL_GPL(ide_set_irq);
+EXPORT_SYMBOL_GPL(ide_write_devctl);
-void ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
+void ide_dev_select(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 select = drive->select | ATA_DEVICE_OBS;
+
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ writeb(select, (void __iomem *)hwif->io_ports.device_addr);
+ else
+ outb(select, hwif->io_ports.device_addr);
+}
+EXPORT_SYMBOL_GPL(ide_dev_select);
+
+void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &cmd->tf;
void (*tf_outb)(u8 addr, unsigned long port);
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
- u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
if (mmio)
tf_outb = ide_mm_outb;
else
tf_outb = ide_outb;
- if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
- HIHI = 0xFF;
-
- if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
- u16 data = (tf->hob_data << 8) | tf->data;
-
- if (mmio)
- writew(data, (void __iomem *)io_ports->data_addr);
- else
- outw(data, io_ports->data_addr);
- }
-
- if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
- tf_outb(tf->hob_feature, io_ports->feature_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
- tf_outb(tf->hob_nsect, io_ports->nsect_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
- tf_outb(tf->hob_lbal, io_ports->lbal_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
- tf_outb(tf->hob_lbam, io_ports->lbam_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
- tf_outb(tf->hob_lbah, io_ports->lbah_addr);
-
- if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
+ if (valid & IDE_VALID_FEATURE)
tf_outb(tf->feature, io_ports->feature_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
+ if (valid & IDE_VALID_NSECT)
tf_outb(tf->nsect, io_ports->nsect_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
+ if (valid & IDE_VALID_LBAL)
tf_outb(tf->lbal, io_ports->lbal_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
+ if (valid & IDE_VALID_LBAM)
tf_outb(tf->lbam, io_ports->lbam_addr);
- if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
+ if (valid & IDE_VALID_LBAH)
tf_outb(tf->lbah, io_ports->lbah_addr);
-
- if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
- tf_outb((tf->device & HIHI) | drive->select,
- io_ports->device_addr);
+ if (valid & IDE_VALID_DEVICE)
+ tf_outb(tf->device, io_ports->device_addr);
}
EXPORT_SYMBOL_GPL(ide_tf_load);
-void ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
+void ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
- struct ide_taskfile *tf = &cmd->tf;
- void (*tf_outb)(u8 addr, unsigned long port);
u8 (*tf_inb)(unsigned long port);
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
- if (mmio) {
- tf_outb = ide_mm_outb;
+ if (mmio)
tf_inb = ide_mm_inb;
- } else {
- tf_outb = ide_outb;
+ else
tf_inb = ide_inb;
- }
-
- if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
- u16 data;
- if (mmio)
- data = readw((void __iomem *)io_ports->data_addr);
- else
- data = 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 */
- tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
-
- if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
- tf->feature = tf_inb(io_ports->feature_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
+ if (valid & IDE_VALID_ERROR)
+ tf->error = tf_inb(io_ports->feature_addr);
+ if (valid & IDE_VALID_NSECT)
tf->nsect = tf_inb(io_ports->nsect_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
+ if (valid & IDE_VALID_LBAL)
tf->lbal = tf_inb(io_ports->lbal_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
+ if (valid & IDE_VALID_LBAM)
tf->lbam = tf_inb(io_ports->lbam_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
+ if (valid & IDE_VALID_LBAH)
tf->lbah = tf_inb(io_ports->lbah_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
+ if (valid & IDE_VALID_DEVICE)
tf->device = tf_inb(io_ports->device_addr);
-
- if (cmd->tf_flags & IDE_TFLAG_LBA48) {
- tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
-
- if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
- tf->hob_feature = tf_inb(io_ports->feature_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
- tf->hob_nsect = tf_inb(io_ports->nsect_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
- tf->hob_lbal = tf_inb(io_ports->lbal_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
- tf->hob_lbam = tf_inb(io_ports->lbam_addr);
- if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
- tf->hob_lbah = tf_inb(io_ports->lbah_addr);
- }
}
EXPORT_SYMBOL_GPL(ide_tf_read);
* so if an odd len is specified, be sure that there's at least one
* extra byte allocated for the buffer.
*/
-void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
+void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
unsigned long data_addr = io_ports->data_addr;
+ unsigned int words = (len + 1) >> 1;
u8 io_32bit = drive->io_32bit;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
- len++;
-
if (io_32bit) {
unsigned long uninitialized_var(flags);
ata_vlb_sync(io_ports->nsect_addr);
}
+ words >>= 1;
if (mmio)
- __ide_mm_insl((void __iomem *)data_addr, buf, len / 4);
+ __ide_mm_insl((void __iomem *)data_addr, buf, words);
else
- insl(data_addr, buf, len / 4);
+ insl(data_addr, buf, words);
if ((io_32bit & 2) && !mmio)
local_irq_restore(flags);
- if ((len & 3) >= 2) {
- if (mmio)
- __ide_mm_insw((void __iomem *)data_addr,
- (u8 *)buf + (len & ~3), 1);
- else
- insw(data_addr, (u8 *)buf + (len & ~3), 1);
- }
- } else {
- if (mmio)
- __ide_mm_insw((void __iomem *)data_addr, buf, len / 2);
- else
- insw(data_addr, buf, len / 2);
+ if (((len + 1) & 3) < 2)
+ return;
+
+ buf += len & ~3;
+ words = 1;
}
+
+ if (mmio)
+ __ide_mm_insw((void __iomem *)data_addr, buf, words);
+ else
+ insw(data_addr, buf, words);
}
EXPORT_SYMBOL_GPL(ide_input_data);
/*
* This is used for most PIO data transfers *to* the IDE interface
*/
-void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
+void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
unsigned long data_addr = io_ports->data_addr;
+ unsigned int words = (len + 1) >> 1;
u8 io_32bit = drive->io_32bit;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
- len++;
-
if (io_32bit) {
unsigned long uninitialized_var(flags);
ata_vlb_sync(io_ports->nsect_addr);
}
+ words >>= 1;
if (mmio)
- __ide_mm_outsl((void __iomem *)data_addr, buf, len / 4);
+ __ide_mm_outsl((void __iomem *)data_addr, buf, words);
else
- outsl(data_addr, buf, len / 4);
+ outsl(data_addr, buf, words);
if ((io_32bit & 2) && !mmio)
local_irq_restore(flags);
- if ((len & 3) >= 2) {
- if (mmio)
- __ide_mm_outsw((void __iomem *)data_addr,
- (u8 *)buf + (len & ~3), 1);
- else
- outsw(data_addr, (u8 *)buf + (len & ~3), 1);
- }
- } else {
- if (mmio)
- __ide_mm_outsw((void __iomem *)data_addr, buf, len / 2);
- else
- outsw(data_addr, buf, len / 2);
+ if (((len + 1) & 3) < 2)
+ return;
+
+ buf += len & ~3;
+ words = 1;
}
+
+ if (mmio)
+ __ide_mm_outsw((void __iomem *)data_addr, buf, words);
+ else
+ outsw(data_addr, buf, words);
}
EXPORT_SYMBOL_GPL(ide_output_data);
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
+ .write_devctl = ide_write_devctl,
- .set_irq = ide_set_irq,
-
+ .dev_select = ide_dev_select,
.tf_load = ide_tf_load,
.tf_read = ide_tf_read,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff