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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-13 17:47:50 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-13 17:47:50 +0200
commitaedea5910ce44fea79e2c517bb22e0006372156f (patch)
tree5e9c84f0c045058594a80a2bc67b358f80d1d884 /include
parent3b2d0093b8eb2b0b4adc86138edee9f6d376cafb (diff)
ide-pmac: remove pmac_ide_do_setfeature() (take 2)
Use ide_config_drive_speed() instead of pmac_ide_do_setfeature() and remove the latter, also ide-iops.c::__ide_wait_stat() could be static again. Since for IDE PMAC host driver IDE_CONTROL_REG is always true, device's ->quirk_list is always zero and ->ide_dma_host_{on,off} are nops than the only changes in behavior are: * if PIO mode is set then ->dma_off_queitly is called to disable DMA * if setting transfer mode fails ide_dump_status() is called to dump status v2: * IDE PMAC controllers allow separate PIO and DMA timings and PPC userland depends on this fact, and calls "hdparm -p" without calling "hdparm -d". Therefore to compensate for DMA being disabled by ide_config_drive_speed() for PIO modes: - add IDE_HFLAG_SET_PIO_MODE_KEEP_DMA flag and set it in PMAC host driver - add handling of the new flag to ide-io.c::do_special() Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ide.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h
index d86115e9aa2..6bb621203f3 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1153,7 +1153,6 @@ extern void SELECT_MASK(ide_drive_t *, int);
extern void QUIRK_LIST(ide_drive_t *);
extern int drive_is_ready(ide_drive_t *);
-int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long);
/*
* taskfile io for disks for now...and builds request from ide_ioctl
@@ -1253,6 +1252,11 @@ enum {
IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5),
/* use 100-102 and 200-202 PIO values to set DMA modes */
IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6),
+ /*
+ * keep DMA setting when programming PIO mode, may be used only
+ * for hosts which have separate PIO and DMA timings (ie. PMAC)
+ */
+ IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7),
};
typedef struct ide_pci_device_s {