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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-16 20:33:39 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-16 20:33:39 +0200
commitc9d6c1a2379373219bb3271bdcbdc0ab2edf349d (patch)
tree9807c4ff5c92df9fd914c39db6bdd0179ecb1b27
parent8a97206e31dc2e2f8f9b4d97e234b5c701fe9894 (diff)
ide: move ide_pio_cycle_time() to ide-timings.c
All ide_pio_cycle_time() users already select CONFIG_IDE_TIMINGS so move the function from ide-lib.c to ide-timings.c. While at it: - convert ide_pio_cycle_time() to use ide_timing_find_mode() - cleanup ide_pio_cycle_time() a bit There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/ide-lib.c23
-rw-r--r--drivers/ide/ide-timings.c22
-rw-r--r--include/linux/ide.h2
3 files changed, 23 insertions, 24 deletions
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 7e053d21773..efa5bfa64d0 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -188,29 +188,6 @@ static int ide_scan_pio_blacklist (char *model)
return -1;
}
-unsigned int ide_pio_cycle_time(ide_drive_t *drive, u8 pio)
-{
- struct hd_driveid *id = drive->id;
- int cycle_time = 0;
-
- if (id->field_valid & 2) {
- if (id->capability & 8)
- cycle_time = id->eide_pio_iordy;
- else
- cycle_time = id->eide_pio;
- }
-
- /* conservative "downgrade" for all pre-ATA2 drives */
- if (pio < 3) {
- if (cycle_time && cycle_time < ide_pio_timings[pio].cycle_time)
- cycle_time = 0; /* use standard timing */
- }
-
- return cycle_time ? cycle_time : ide_pio_timings[pio].cycle_time;
-}
-
-EXPORT_SYMBOL_GPL(ide_pio_cycle_time);
-
/**
* ide_get_best_pio_mode - get PIO mode from drive
* @drive: drive to consider
diff --git a/drivers/ide/ide-timings.c b/drivers/ide/ide-timings.c
index ebef6d4e3f6..8c2f8327f48 100644
--- a/drivers/ide/ide-timings.c
+++ b/drivers/ide/ide-timings.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 1999-2001 Vojtech Pavlik
+ * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -75,6 +76,27 @@ struct ide_timing *ide_timing_find_mode(u8 speed)
}
EXPORT_SYMBOL_GPL(ide_timing_find_mode);
+u16 ide_pio_cycle_time(ide_drive_t *drive, u8 pio)
+{
+ struct hd_driveid *id = drive->id;
+ struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
+ u16 cycle = 0;
+
+ if (id->field_valid & 2) {
+ if (id->capability & 8)
+ cycle = id->eide_pio_iordy;
+ else
+ cycle = id->eide_pio;
+
+ /* conservative "downgrade" for all pre-ATA2 drives */
+ if (pio < 3 && cycle < t->cycle)
+ cycle = 0; /* use standard timing */
+ }
+
+ return cycle ? cycle : t->cycle;
+}
+EXPORT_SYMBOL_GPL(ide_pio_cycle_time);
+
#define ENOUGH(v, unit) (((v) - 1) / (unit) + 1)
#define EZ(v, unit) ((v) ? ENOUGH(v, unit) : 0)
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 057001f6b1d..3899c761b30 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1300,6 +1300,7 @@ enum {
};
struct ide_timing *ide_timing_find_mode(u8);
+u16 ide_pio_cycle_time(ide_drive_t *, u8);
void ide_timing_merge(struct ide_timing *, struct ide_timing *,
struct ide_timing *, unsigned int);
int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
@@ -1311,7 +1312,6 @@ typedef struct ide_pio_timings_s {
/* active + recovery (+ setup for some chips) */
} ide_pio_timings_t;
-unsigned int ide_pio_cycle_time(ide_drive_t *, u8);
u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
extern const ide_pio_timings_t ide_pio_timings[6];