ide: add ide_set{_max}_pio() (take 4)

* Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags
  and set them in ht6560, cmd640, cmd64x and sc1200 host drivers.

* Add set_pio_mode_abuse() for checking if host driver has a non-standard
  ->tuneproc() implementation and use it in do_special().

* Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find
  the maximum PIO mode supported by the host), also add ide_set_max_pio()
  wrapper for ide_set_pio() to use for auto-tuning.  Convert users of
  ->tuneproc to use ide_set{_max}_pio() where possible.  This leaves only
  do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as
  a direct users of ->tuneproc.

* Remove no longer needed ide_get_best_pio_mode() calls and printk-s
  reporting PIO mode selected from ->tuneproc implementations.

* Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const.

* Remove stale comment from ide_config_drive_speed().

v2:
* Fix "ata_" prefix (Noticed by Jeff).

v3:
* Minor cleanups/fixups per Sergei's suggestions.

v4:
* Fix compile problem in drivers/ide/pci/cmd640.c
  (Noticed by Andrew Morton).

* Improve some ->set_pio_mode comments.
Reviewed-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 842c19ad
......@@ -680,12 +680,10 @@ static void cris_dma_off(ide_drive_t *drive)
{
}
static void tune_cris_ide(ide_drive_t *drive, u8 pio)
static void cris_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int setup, strobe, hold;
pio = ide_get_best_pio_mode(drive, pio, 4);
switch(pio)
{
case 0:
......@@ -727,7 +725,7 @@ static int speed_cris_ide(ide_drive_t *drive, const u8 speed)
int cyc = 0, dvs = 0, strobe = 0, hold = 0;
if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
tune_cris_ide(drive, speed - XFER_PIO_0);
cris_set_pio_mode(drive, speed - XFER_PIO_0);
return ide_config_drive_speed(drive, speed);
}
......@@ -797,7 +795,7 @@ init_e100_ide (void)
ide_register_hw(&hw, 1, &hwif);
hwif->mmio = 1;
hwif->chipset = ide_etrax100;
hwif->tuneproc = &tune_cris_ide;
hwif->set_pio_mode = &cris_set_pio_mode;
hwif->speedproc = &speed_cris_ide;
hwif->ata_input_data = &cris_ide_input_data;
hwif->ata_output_data = &cris_ide_output_data;
......
......@@ -201,8 +201,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
return do_rw_taskfile(drive, args);
case idedisk_pm_restore_pio: /* Resume step 1 (restore PIO) */
if (drive->hwif->tuneproc != NULL)
drive->hwif->tuneproc(drive, 255);
ide_set_max_pio(drive);
/*
* skip idedisk_pm_idle for ATAPI devices
*/
......@@ -788,6 +787,30 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive)
return ide_started;
}
/*
* handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
*/
static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
{
switch (req_pio) {
case 202:
case 201:
case 200:
case 102:
case 101:
case 100:
return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
case 9:
case 8:
return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
case 7:
case 6:
return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
default:
return 0;
}
}
/**
* do_special - issue some special commands
* @drive: drive the command is for
......@@ -805,9 +828,17 @@ static ide_startstop_t do_special (ide_drive_t *drive)
printk("%s: do_special: 0x%02x\n", drive->name, s->all);
#endif
if (s->b.set_tune) {
ide_hwif_t *hwif = drive->hwif;
u8 req_pio = drive->tune_req;
s->b.set_tune = 0;
if (HWIF(drive)->tuneproc != NULL)
HWIF(drive)->tuneproc(drive, drive->tune_req);
if (set_pio_mode_abuse(drive->hwif, req_pio)) {
if (hwif->set_pio_mode)
hwif->set_pio_mode(drive, req_pio);
} else
ide_set_pio(drive, req_pio);
return ide_stopped;
} else {
if (drive->media == ide_disk)
......
......@@ -780,12 +780,6 @@ int ide_driveid_update (ide_drive_t *drive)
/*
* Similar to ide_wait_stat(), except it never calls ide_error internally.
* This is a kludge to handle the new ide_config_drive_speed() function,
* and should not otherwise be used anywhere. Eventually, the tuneproc's
* should be updated to return ide_startstop_t, in which case we can get
* rid of this abomination again. :) -ml
*
* It is gone..........
*
* const char *msg == consider adding for verbose errors.
*/
......
......@@ -325,6 +325,35 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
/* req_pio == "255" for auto-tune */
void ide_set_pio(ide_drive_t *drive, u8 req_pio)
{
ide_hwif_t *hwif = drive->hwif;
u8 host_pio, pio;
if (hwif->set_pio_mode == NULL)
return;
BUG_ON(hwif->pio_mask == 0x00);
host_pio = fls(hwif->pio_mask) - 1;
pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
/*
* TODO:
* - report device max PIO mode
* - check req_pio != 255 against device max PIO mode
*/
printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
drive->name, host_pio, req_pio,
req_pio == 255 ? "(auto-tune)" : "", pio);
hwif->set_pio_mode(drive, pio);
}
EXPORT_SYMBOL_GPL(ide_set_pio);
/**
* ide_toggle_bounce - handle bounce buffering
* @drive: drive to update
......
......@@ -827,10 +827,8 @@ static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
ide_drive_t *drive = &hwif->drives[unit];
if (drive->present) {
if (hwif->tuneproc != NULL &&
drive->autotune == IDE_TUNE_AUTO)
/* auto-tune PIO mode */
hwif->tuneproc(drive, 255);
if (drive->autotune == IDE_TUNE_AUTO)
ide_set_max_pio(drive);
if (drive->autotune != IDE_TUNE_DEFAULT &&
drive->autotune != IDE_TUNE_AUTO)
......
......@@ -396,7 +396,7 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
hwif->cds = tmp_hwif->cds;
#endif
hwif->tuneproc = tmp_hwif->tuneproc;
hwif->set_pio_mode = tmp_hwif->set_pio_mode;
hwif->speedproc = tmp_hwif->speedproc;
hwif->mdma_filter = tmp_hwif->mdma_filter;
hwif->udma_filter = tmp_hwif->udma_filter;
......@@ -867,8 +867,9 @@ int set_pio_mode(ide_drive_t *drive, int arg)
if (arg < 0 || arg > 255)
return -EINVAL;
if (!HWIF(drive)->tuneproc)
if (drive->hwif->set_pio_mode == NULL)
return -ENOSYS;
if (drive->special.b.set_tune)
return -EBUSY;
ide_init_drive_cmd(&rq);
......
......@@ -68,8 +68,6 @@ static RegInitializer initData[] __initdata = {
{0x35, 0x03}, {0x00, 0x00}
};
#define ALI_MAX_PIO 4
/* timing parameter registers for each drive */
static struct { u8 reg1, reg2, reg3, reg4; } regTab[4] = {
{0x03, 0x26, 0x04, 0x27}, /* drive 0 */
......@@ -109,7 +107,7 @@ static void outReg (u8 data, u8 reg)
* This function computes timing parameters
* and sets controller registers accordingly.
*/
static void ali14xx_tune_drive (ide_drive_t *drive, u8 pio)
static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int driveNum;
int time1, time2;
......@@ -117,8 +115,6 @@ static void ali14xx_tune_drive (ide_drive_t *drive, u8 pio)
unsigned long flags;
int bus_speed = system_bus_clock();
pio = ide_get_best_pio_mode(drive, pio, ALI_MAX_PIO);
/* calculate timing, according to PIO mode */
time1 = ide_pio_cycle_time(drive, pio);
time2 = ide_pio_timings[pio].active_time;
......@@ -212,12 +208,12 @@ static int __init ali14xx_probe(void)
hwif->chipset = ide_ali14xx;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &ali14xx_tune_drive;
hwif->set_pio_mode = &ali14xx_set_pio_mode;
hwif->mate = mate;
mate->chipset = ide_ali14xx;
mate->pio_mask = ATA_PIO4;
mate->tuneproc = &ali14xx_tune_drive;
mate->set_pio_mode = &ali14xx_set_pio_mode;
mate->mate = hwif;
mate->channel = 1;
......
......@@ -67,12 +67,10 @@ static void sub22 (char b, char c)
}
}
static void tune_dtc2278 (ide_drive_t *drive, u8 pio)
static void dtc2278_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
pio = ide_get_best_pio_mode(drive, pio, 4);
if (pio >= 3) {
spin_lock_irqsave(&ide_lock, flags);
/*
......@@ -124,7 +122,7 @@ static int __init dtc2278_probe(void)
hwif->serialized = 1;
hwif->chipset = ide_dtc2278;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &tune_dtc2278;
hwif->set_pio_mode = &dtc2278_set_pio_mode;
hwif->drives[0].no_unmask = 1;
hwif->drives[1].no_unmask = 1;
hwif->mate = mate;
......
......@@ -199,7 +199,7 @@ static int __init try_to_init_ht6560b(void)
return 1;
}
static u8 ht_pio2timings(ide_drive_t *drive, u8 pio)
static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
{
int active_time, recovery_time;
int active_cycles, recovery_cycles;
......@@ -208,7 +208,6 @@ static u8 ht_pio2timings(ide_drive_t *drive, u8 pio)
if (pio) {
unsigned int cycle_time;
pio = ide_get_best_pio_mode(drive, pio, 5);
cycle_time = ide_pio_cycle_time(drive, pio);
/*
......@@ -277,7 +276,7 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
#endif
}
static void tune_ht6560b (ide_drive_t *drive, u8 pio)
static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
u8 timing;
......@@ -333,15 +332,17 @@ int __init ht6560b_init(void)
hwif->chipset = ide_ht6560b;
hwif->selectproc = &ht6560b_selectproc;
hwif->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
hwif->pio_mask = ATA_PIO5;
hwif->tuneproc = &tune_ht6560b;
hwif->set_pio_mode = &ht6560b_set_pio_mode;
hwif->serialized = 1; /* is this needed? */
hwif->mate = mate;
mate->chipset = ide_ht6560b;
mate->selectproc = &ht6560b_selectproc;
mate->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
mate->pio_mask = ATA_PIO5;
mate->tuneproc = &tune_ht6560b;
mate->set_pio_mode = &ht6560b_set_pio_mode;
mate->serialized = 1; /* is this needed? */
mate->mate = hwif;
mate->channel = 1;
......
......@@ -224,15 +224,14 @@ static void qd_set_timing (ide_drive_t *drive, u8 timing)
printk(KERN_DEBUG "%s: %#x\n", drive->name, timing);
}
/*
* qd6500_tune_drive
*/
static void qd6500_tune_drive (ide_drive_t *drive, u8 pio)
static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int active_time = 175;
int recovery_time = 415; /* worst case values from the dos driver */
/*
* FIXME: use "pio" value
*/
if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)
&& drive->id->tPIO && (drive->id->field_valid & 0x02)
&& drive->id->eide_pio >= 240) {
......@@ -246,11 +245,7 @@ static void qd6500_tune_drive (ide_drive_t *drive, u8 pio)
qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time));
}
/*
* qd6580_tune_drive
*/
static void qd6580_tune_drive (ide_drive_t *drive, u8 pio)
static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int base = HWIF(drive)->select_data;
unsigned int cycle_time;
......@@ -258,7 +253,6 @@ static void qd6580_tune_drive (ide_drive_t *drive, u8 pio)
int recovery_time = 415; /* worst case values from the dos driver */
if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
pio = ide_get_best_pio_mode(drive, pio, 4);
cycle_time = ide_pio_cycle_time(drive, pio);
switch (pio) {
......@@ -335,8 +329,7 @@ static int __init qd_testreg(int port)
*/
static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
unsigned int data0, unsigned int data1,
void (*tuneproc) (ide_drive_t *, u8 pio))
unsigned int data0, unsigned int data1)
{
hwif->chipset = ide_qd65xx;
hwif->channel = hwif->index;
......@@ -347,8 +340,6 @@ static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
hwif->drives[0].io_32bit =
hwif->drives[1].io_32bit = 1;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = tuneproc;
probe_hwif_init(hwif);
}
/*
......@@ -361,7 +352,7 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
{
u8 config = hwif->config_data;
int base = hwif->select_data;
void *tuneproc = (void *) hwif->tuneproc;
void *set_pio_mode = (void *)hwif->set_pio_mode;
if (hwif->chipset != ide_qd65xx)
return;
......@@ -369,12 +360,12 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
printk(KERN_NOTICE "%s: back to defaults\n", hwif->name);
hwif->selectproc = NULL;
hwif->tuneproc = NULL;
hwif->set_pio_mode = NULL;
if (tuneproc == (void *) qd6500_tune_drive) {
if (set_pio_mode == (void *)qd6500_set_pio_mode) {
// will do it for both
qd_write_reg(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
} else if (tuneproc == (void *) qd6580_tune_drive) {
} else if (set_pio_mode == (void *)qd6580_set_pio_mode) {
if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
qd_write_reg(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
qd_write_reg(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
......@@ -424,8 +415,11 @@ static int __init qd_probe(int base)
return 1;
}
qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA,
&qd6500_tune_drive);
qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA);
hwif->set_pio_mode = &qd6500_set_pio_mode;
probe_hwif_init(hwif);
ide_proc_register_port(hwif);
......@@ -455,8 +449,12 @@ static int __init qd_probe(int base)
printk(KERN_INFO "%s: qd6580: single IDE board\n",
hwif->name);
qd_setup(hwif, base, config | (control << 8),
QD6580_DEF_DATA, QD6580_DEF_DATA2,
&qd6580_tune_drive);
QD6580_DEF_DATA, QD6580_DEF_DATA2);
hwif->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(hwif);
qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
ide_proc_register_port(hwif);
......@@ -472,11 +470,19 @@ static int __init qd_probe(int base)
hwif->name, mate->name);
qd_setup(hwif, base, config | (control << 8),
QD6580_DEF_DATA, QD6580_DEF_DATA,
&qd6580_tune_drive);
QD6580_DEF_DATA, QD6580_DEF_DATA);
hwif->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(hwif);
qd_setup(mate, base, config | (control << 8),
QD6580_DEF_DATA2, QD6580_DEF_DATA2,
&qd6580_tune_drive);
QD6580_DEF_DATA2, QD6580_DEF_DATA2);
mate->set_pio_mode = &qd6580_set_pio_mode;
probe_hwif_init(mate);
qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
ide_proc_register_port(hwif);
......
......@@ -105,12 +105,11 @@ static void umc_set_speeds (u8 speeds[])
speeds[0], speeds[1], speeds[2], speeds[3]);
}
static void tune_umc (ide_drive_t *drive, u8 pio)
static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
ide_hwgroup_t *hwgroup = ide_hwifs[HWIF(drive)->index^1].hwgroup;
pio = ide_get_best_pio_mode(drive, pio, 4);
printk("%s: setting umc8672 to PIO mode%d (speed %d)\n",
drive->name, pio, pio_to_umc[pio]);
spin_lock_irqsave(&ide_lock, flags);
......@@ -150,12 +149,12 @@ static int __init umc8672_probe(void)
hwif->chipset = ide_umc8672;
hwif->pio_mask = ATA_PIO4;
hwif->tuneproc = &tune_umc;
hwif->set_pio_mode = &umc_set_pio_mode;
hwif->mate = mate;
mate->chipset = ide_umc8672;
mate->pio_mask = ATA_PIO4;
mate->tuneproc = &tune_umc;
mate->set_pio_mode = &umc_set_pio_mode;
mate->mate = hwif;
mate->channel = 1;
......
......@@ -99,18 +99,12 @@ void auide_outsw(unsigned long port, void *addr, u32 count)
#endif
static void auide_tune_drive(ide_drive_t *drive, byte pio)
static void au1xxx_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
int mem_sttime;
int mem_stcfg;
u8 speed;
/* get the best pio mode for the drive */
pio = ide_get_best_pio_mode(drive, pio, 4);
printk(KERN_INFO "%s: setting Au1XXX IDE to PIO mode%d\n",
drive->name, pio);
mem_sttime = 0;
mem_stcfg = au_readl(MEM_STCFG2);
......@@ -184,7 +178,7 @@ static int auide_tune_chipset(ide_drive_t *drive, const u8 speed)
mem_stcfg = au_readl(MEM_STCFG2);
if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
auide_tune_drive(drive, speed - XFER_PIO_0);
au1xxx_set_pio_mode(drive, speed - XFER_PIO_0);
return 0;
}
......@@ -712,7 +706,7 @@ static int au_ide_probe(struct device *dev)
hwif->OUTSW = auide_outsw;
#endif
hwif->tuneproc = &auide_tune_drive;
hwif->set_pio_mode = &au1xxx_set_pio_mode;
hwif->speedproc = &auide_tune_chipset;
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
......
......@@ -138,9 +138,8 @@ static int aec6260_tune_chipset(ide_drive_t *drive, const u8 speed)
return(ide_config_drive_speed(drive, speed));
}
static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
pio = ide_get_best_pio_mode(drive, pio, 4);
(void) HWIF(drive)->speedproc(drive, pio + XFER_PIO_0);
}
......@@ -150,7 +149,7 @@ static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
return 0;
if (ide_use_fast_pio(drive))
aec62xx_tune_drive(drive, 255);
ide_set_max_pio(drive);
return -1;
}
......@@ -201,7 +200,7 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
u8 reg54 = 0, mask = hwif->channel ? 0xf0 : 0x0f;
unsigned long flags;
hwif->tuneproc = &aec62xx_tune_drive;
hwif->set_pio_mode = &aec_set_pio_mode;
if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
if(hwif->mate)
......
......@@ -283,17 +283,14 @@ static int ali_get_info (char *buffer, char **addr, off_t offset, int count)
#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
/**
* ali15x3_tune_pio - set up chipset for PIO mode
* @drive: drive to tune
* @pio: desired mode
* ali_tune_pio - set host controller for PIO mode
* @drive: drive
* @pio: PIO mode number
*
* Select the best PIO mode for the drive in question.
* Then program the controller for this mode.
*
* Returns the PIO mode programmed.
* Program the controller for the given PIO mode.
*/
static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio)
static void ali_tune_pio(ide_drive_t *drive, const u8 pio)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
......@@ -306,7 +303,6 @@ static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio)
u8 cd_dma_fifo = 0;
int unit = drive->select.b.unit & 1;
pio = ide_get_best_pio_mode(drive, pio, 5);
s_time = ide_pio_timings[pio].setup_time;
a_time = ide_pio_timings[pio].active_time;
if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
......@@ -359,22 +355,20 @@ static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio)
* { 25, 70, 25 }, PIO Mode 4 with IORDY ns
* { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard)
*/
return pio;
}
/**
* ali15x3_tune_drive - set up drive for PIO mode
* ali_set_pio_mode - set up drive for PIO mode
* @drive: drive to tune
* @pio: desired mode
*
* Program the controller with the best PIO timing for the given drive.
* Program the controller with the desired PIO timing for the given drive.
* Then set up the drive itself.
*/
static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio)
static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
pio = ali15x3_tune_pio(drive, pio);
ali_tune_pio(drive, pio);
(void) ide_config_drive_speed(drive, XFER_PIO_0 + pio);
}
......@@ -437,7 +431,7 @@ static int ali15x3_tune_chipset(ide_drive_t *drive, const u8 speed)
pci_write_config_byte(dev, m5229_udma, tmpbyte);
if (speed < XFER_SW_DMA_0)
(void) ali15x3_tune_pio(drive, speed - XFER_PIO_0);
ali_tune_pio(drive, speed - XFER_PIO_0);
} else {
pci_read_config_byte(dev, m5229_udma, &tmpbyte);
tmpbyte &= (0x0f << ((1-unit) << 2));
......@@ -470,7 +464,7 @@ static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
if (ide_tune_dma(drive))
return 0;
ali15x3_tune_drive(drive, 255);
ide_set_max_pio(drive);
return -1;
}
......@@ -700,7 +694,7 @@ static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif)
static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
{
hwif->autodma = 0;
hwif->tuneproc = &ali15x3_tune_drive;
hwif->set_pio_mode = &ali_set_pio_mode;
hwif->speedproc = &ali15x3_tune_chipset;
hwif->udma_filter = &ali_udma_filter;
......
......@@ -266,16 +266,12 @@ static int amd_set_drive(ide_drive_t *drive, const u8 speed)
}
/*
* amd74xx_tune_drive() is a callback from upper layers for
* PIO-only tuning.
* amd_set_pio_mode() is a callback from upper layers for PIO-only tuning.
*/
static void amd74xx_tune_drive(ide_drive_t *drive, u8 pio)
static void amd_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
if (pio == 255)
pio = ide_get_best_pio_mode(drive, 255, 5);
amd_set_drive(drive, XFER_PIO_0 + min_t(byte, pio, 5));
amd_set_drive(drive, XFER_PIO_0 + pio);
}
static int amd74xx_ide_dma_check(ide_drive_t *drive)
......@@ -283,7 +279,7 @@ static int amd74xx_ide_dma_check(ide_drive_t *drive)
u8 speed = ide_max_dma_mode(drive);
if (speed == 0) {
amd74xx_tune_drive(drive, 255);
ide_set_max_pio(drive);
return -1;
}
......@@ -409,7 +405,7 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
hwif->autodma = 0;
hwif->tuneproc = &amd74xx_tune_drive;
hwif->set_pio_mode = &amd_set_pio_mode;
hwif->speedproc = &amd_set_drive;
for (i = 0; i < 2; i++) {
......
......@@ -153,9 +153,8 @@ static void atiixp_tune_pio(ide_drive_t *drive, u8 pio)
spin_unlock_irqrestore(&atiixp_lock, flags);
}
static void atiixp_tuneproc(ide_drive_t *drive, u8 pio)
static void atiixp_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
pio = ide_get_best_pio_mode(drive, pio, 4);
atiixp_tune_pio(drive, pio);
(void)ide_config_drive_speed(drive, XFER_PIO_0 + pio);
}
......@@ -231,7 +230,7 @@ static int atiixp_dma_check(ide_drive_t *drive)
return 0;
if (ide_use_fast_pio(drive))
atiixp_tuneproc(drive, 255);
ide_set_max_pio(drive);
return -1;
}
......@@ -254,7 +253,7 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
hwif->irq = ch ? 15 : 14;
hwif->autodma = 0;
hwif->tuneproc = &atiixp_tuneproc;
hwif->set_pio_mode = &atiixp_set_pio_mode;
hwif->speedproc = &atiixp_speedproc;
hwif->drives[0].autotune = 1;
hwif->drives[1].autotune = 1;
......
......@@ -628,45 +628,40 @@ static void cmd640_set_mode (unsigned int index, u8 pio_mode, unsigned int cycle
program_drive_counts (index);
}
/*
* Drive PIO mode selection:
*/
static void cmd640_tune_drive (ide_drive_t *drive, u8 mode_wanted)
static void cmd640_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned int index = 0, cycle_time;
u8 b;
while (drive != cmd_drives[index]) {
if (++index > 3) {
printk("%s: bad news in cmd640_tune_drive\n", drive->name);
printk(KERN_ERR "%s: bad news in %s\n",
drive->name, __FUNCTION__);
return;
}
}
switch (mode_wanted) {
switch (pio) {
case 6: /* set fast-devsel off */
case 7: /* set fast-devsel on */
mode_wanted &= 1;
b = get_cmd640_reg(CNTRL) & ~0x27;
if (mode_wanted)
if (pio & 1)
b |= 0x27;
put_cmd640_reg(CNTRL, b);
printk("%s: %sabled cmd640 fast host timing (devsel)\n", drive->name, mode_wanted ? "en" : "dis");
printk("%s: %sabled cmd640 fast host timing (devsel)\n", drive->name, (pio & 1) ? "en" : "dis");
return;
case 8: /* set prefetch off */
case 9: /* set prefetch on */
mode_wanted &= 1;
set_prefetch_mode(index, mode_wanted);
printk("%s: %sabled cmd640 prefetch\n", drive->name, mode_wanted ? "en" : "dis");
set_prefetch_mode(index, pio & 1);
printk("%s: %sabled cmd640 prefetch\n", drive->name, (pio & 1) ? "en" : "dis");
return;
}
mode_wanted = ide_get_best_pio_mode(drive, mode_wanted, 5);
cycle_time = ide_pio_cycle_time(drive, mode_wanted);
cmd640_set_mode(index, mode_wanted, cycle_time);
cycle_time = ide_pio_cycle_time(drive, pio);
cmd640_set_mode(index, pio, cycle_time);