From c6dfa867bb45f4bff2e48f3bc89ab1d6a7ab4c21 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:51 +0200 Subject: [PATCH] ide: add ->exec_command method Add ->exec_command method for writing ATA Command register and use it instead of ->OUTBSYNC. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-io.c | 3 +-- drivers/ide/ide-iops.c | 19 ++++++++++++++----- drivers/ide/ide-probe.c | 6 +++--- drivers/ide/ide-taskfile.c | 2 +- drivers/ide/pci/scc_pata.c | 9 +++++++++ drivers/ide/ppc/pmac.c | 9 +++++++++ drivers/scsi/ide-scsi.c | 3 +-- include/linux/ide.h | 3 ++- 8 files changed, 40 insertions(+), 14 deletions(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 661b75a89d4..ca0c04a919c 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -437,8 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, - hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); if (rq->errors >= ERROR_MAX) { ide_kill_rq(drive, rq); diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 17cad6c39ee..d8db2558190 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -103,6 +103,14 @@ void SELECT_MASK(ide_drive_t *drive, int mask) port_ops->maskproc(drive, mask); } +static void ide_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); + else + outb(cmd, hwif->io_ports.command_addr); +} + static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -331,6 +339,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq, void default_hwif_transport(ide_hwif_t *hwif) { + hwif->exec_command = ide_exec_command; hwif->read_sff_dma_status = ide_read_sff_dma_status; hwif->tf_load = ide_tf_load; @@ -696,7 +705,7 @@ int ide_driveid_update(ide_drive_t *drive) SELECT_MASK(drive, 1); ide_set_irq(drive, 0); msleep(50); - hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDENTIFY); timeout = jiffies + WAIT_WORSTCASE; do { if (time_after(jiffies, timeout)) { @@ -783,7 +792,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) ide_set_irq(drive, 0); hwif->OUTB(speed, io_ports->nsect_addr); hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr); - hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SETFEATURES); if (drive->quirk_list == 2) ide_set_irq(drive, 1); @@ -891,7 +900,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, spin_lock_irqsave(&ide_lock, flags); __ide_set_handler(drive, handler, timeout, expiry); - hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); + hwif->exec_command(hwif, cmd); /* * Drive takes 400nS to respond, we must avoid the IRQ being * serviced before that. @@ -909,7 +918,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive) unsigned long flags; spin_lock_irqsave(&ide_lock, flags); - hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_PACKETCMD); ndelay(400); spin_unlock_irqrestore(&ide_lock, flags); } @@ -1116,7 +1125,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SRST); ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index ec5f58c6f19..d1e834a1c5c 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -295,7 +295,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) hwif->OUTB(0, io_ports->feature_addr); /* ask drive for ID */ - hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); + hwif->exec_command(hwif, cmd); timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; timeout += jiffies; @@ -482,7 +482,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) msleep(50); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SRST); (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } @@ -518,7 +518,7 @@ static void enable_nest (ide_drive_t *drive) printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); + hwif->exec_command(hwif, EXABYTE_ENABLE_NEST); if (ide_busy_sleep(hwif)) { printk(KERN_CONT "failed (timeout)\n"); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 1fbdb746dc8..c56be289417 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -88,7 +88,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: - hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr); + hwif->exec_command(hwif, tf->command); ndelay(400); /* FIXME */ return pre_task_out_intr(drive, task->rq); case TASKFILE_MULTI_IN: diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index fc163a7772a..d140dfd565a 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -126,6 +126,14 @@ static u8 scc_ide_inb(unsigned long port) return (u8)data; } +static void scc_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + out_be32((void *)hwif->io_ports.command_addr, cmd); + eieio(); + in_be32((void *)(hwif->dma_base + 0x01c)); + eieio(); +} + static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) { return (u8)in_be32((void *)(hwif->dma_base + 4)); @@ -779,6 +787,7 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) ide_set_hwifdata(hwif, ports); + hwif->exec_command = scc_exec_command; hwif->read_sff_dma_status = scc_read_sff_dma_status; hwif->tf_load = scc_tf_load; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index e68e33bb2c3..7c3a84f8fbe 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -495,6 +495,13 @@ static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) + IDE_TIMING_CONFIG)); } +static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); + (void)readl((void __iomem *)(hwif->io_ports.data_addr + + IDE_TIMING_CONFIG)); +} + /* * Old tuning functions (called on hdparm -p), sets up drive PIO timings */ @@ -1092,6 +1099,8 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) if (hwif == NULL) return -ENOENT; + hwif->exec_command = pmac_exec_command; + /* Setup MMIO ops */ default_hwif_mmiops(hwif); hwif->OUTBSYNC = pmac_outbsync; diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index f843c1383a4..80123890ced 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -248,8 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, - hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); rq->errors++; diff --git a/include/linux/ide.h b/include/linux/ide.h index a179a7f6e44..d77c1994d0e 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -489,7 +489,8 @@ typedef struct hwif_s { const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; - u8 (*read_sff_dma_status)(struct hwif_s *); + void (*exec_command)(struct hwif_s *, u8); + u8 (*read_sff_dma_status)(struct hwif_s *); void (*tf_load)(ide_drive_t *, struct ide_task_s *); void (*tf_read)(ide_drive_t *, struct ide_task_s *); -- 2.20.1