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| author | Tejun Heo <htejun@gmail.com> | 2006-10-09 11:10:26 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-01 22:40:28 -0500 |
| commit | 90088bb41200b4da962282dfd45db82544adac3b (patch) | |
| tree | 84241a4af54715469dd237bd6925f46530f2b5b7 /drivers/ata/libata-sff.c | |
| parent | d1adc1bbd6dde3e05a91e2d3e6ab42d202ea61d5 (diff) | |
| download | kernel_samsung_smdk4412-90088bb41200b4da962282dfd45db82544adac3b.zip kernel_samsung_smdk4412-90088bb41200b4da962282dfd45db82544adac3b.tar.gz kernel_samsung_smdk4412-90088bb41200b4da962282dfd45db82544adac3b.tar.bz2 | |
[PATCH] libata: move ata_irq_on() into libata-sff.c
ata_irq_on() isn't used outside of libata core layer. The function is
TF/SFF interface specific but currently used by core path with some
hack too. Move it from include/linux/libata.h to
drivers/ata/libata-sff.c.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-sff.c')
| -rw-r--r-- | drivers/ata/libata-sff.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index e178d6a..37471d3 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -39,6 +39,35 @@ #include "libata.h" /** + * ata_irq_on - Enable interrupts on a port. + * @ap: Port on which interrupts are enabled. + * + * Enable interrupts on a legacy IDE device using MMIO or PIO, + * wait for idle, clear any pending interrupts. + * + * LOCKING: + * Inherited from caller. + */ +u8 ata_irq_on(struct ata_port *ap) +{ + struct ata_ioports *ioaddr = &ap->ioaddr; + u8 tmp; + + ap->ctl &= ~ATA_NIEN; + ap->last_ctl = ap->ctl; + + if (ap->flags & ATA_FLAG_MMIO) + writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr); + else + outb(ap->ctl, ioaddr->ctl_addr); + tmp = ata_wait_idle(ap); + + ap->ops->irq_clear(ap); + + return tmp; +} + +/** * ata_tf_load_pio - send taskfile registers to host controller * @ap: Port to which output is sent * @tf: ATA taskfile register set |