ide: use 'drive->dn & 1' instead of drive->select.b.unit

* Call ide_port_init_devices() in ide_host_register()
  also if 'struct ide_port_info *d' is not available.

* Init drive->dn in ide_port_init_devices() instead of
  ide_probe_port() so it is valid also in ->init_dev.

* Pass device number to ide_dev_apply_params().

* Use 'drive->dn & 1' instead of drive->select.b.unit.

There should be no functional changes caused by this patch.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 8595259c
......@@ -370,7 +370,7 @@ static int dma_timer_expiry (ide_drive_t *drive)
void ide_dma_host_set(ide_drive_t *drive, int on)
{
ide_hwif_t *hwif = HWIF(drive);
u8 unit = (drive->select.b.unit & 0x01);
u8 unit = drive->dn & 1;
u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
if (on)
......
......@@ -447,7 +447,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
if (ide_read_device(drive) != drive->select.all && present == 0) {
if (drive->select.b.unit != 0) {
if (drive->dn & 1) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
/* allow ATA_BUSY to assert & clear */
......@@ -493,7 +493,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
/* not present or maybe ATAPI */
rc = 3;
}
if (drive->select.b.unit != 0) {
if (drive->dn & 1) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
msleep(50);
......@@ -798,7 +798,7 @@ static int ide_probe_port(ide_hwif_t *hwif)
*/
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
drive->dn = (hwif->channel ? 2 : 0) + unit;
(void) probe_for_drive(drive);
if (drive->dev_flags & IDE_DFLAG_PRESENT)
rc = 0;
......@@ -1357,6 +1357,8 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
for (i = 0; i < MAX_DRIVES; i++) {
ide_drive_t *drive = &hwif->drives[i];
drive->dn = i + hwif->channel * 2;
if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
drive->io_32bit = 1;
if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS)
......@@ -1627,18 +1629,18 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
if (d == NULL) {
mate = NULL;
continue;
}
} else {
if ((i & 1) && mate) {
hwif->mate = mate;
mate->mate = hwif;
}
if ((i & 1) && mate) {
hwif->mate = mate;
mate->mate = hwif;
}
mate = (i & 1) ? NULL : hwif;
mate = (i & 1) ? NULL : hwif;
ide_init_port(hwif, i & 1, d);
ide_port_cable_detect(hwif);
}
ide_init_port(hwif, i & 1, d);
ide_port_cable_detect(hwif);
ide_port_init_devices(hwif);
}
......
......@@ -713,9 +713,9 @@ static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
module_param_call(chs, ide_set_disk_chs, NULL, NULL, 0);
MODULE_PARM_DESC(chs, "force device as a disk (using CHS)");
static void ide_dev_apply_params(ide_drive_t *drive)
static void ide_dev_apply_params(ide_drive_t *drive, u8 unit)
{
int i = drive->hwif->index * MAX_DRIVES + drive->select.b.unit;
int i = drive->hwif->index * MAX_DRIVES + unit;
if (ide_nodma & (1 << i)) {
printk(KERN_INFO "ide: disallowing DMA for %s\n", drive->name);
......@@ -791,7 +791,7 @@ void ide_port_apply_params(ide_hwif_t *hwif)
}
for (i = 0; i < MAX_DRIVES; i++)
ide_dev_apply_params(&hwif->drives[i]);
ide_dev_apply_params(&hwif->drives[i], i);
}
/*
......
......@@ -131,7 +131,7 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
drive->name, pio, time1, time2, param1, param2, param3, param4);
/* stuff timing parameters into controller registers */
driveNum = (HWIF(drive)->index << 1) + drive->select.b.unit;
driveNum = (drive->hwif->index << 1) + (drive->dn & 1);
spin_lock_irqsave(&ali14xx_lock, flags);
outb_p(regOn, basePort);
outReg(param1, regTab[driveNum].reg1);
......
......@@ -305,7 +305,7 @@ static void __init qd6580_init_dev(ide_drive_t *drive)
} else
t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
drive->drive_data = drive->select.b.unit ? t2 : t1;
drive->drive_data = (drive->dn & 1) ? t2 : t1;
}
static const struct ide_port_ops qd6500_port_ops = {
......
......@@ -115,7 +115,7 @@ static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
u8 unit = (drive->select.b.unit & 0x01);
u8 unit = drive->dn & 1;
u8 tmp1 = 0, tmp2 = 0;
u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
unsigned long flags;
......
......@@ -77,8 +77,7 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
int port = hwif->channel ? 0x5c : 0x58;
int portFIFO = hwif->channel ? 0x55 : 0x54;
u8 cd_dma_fifo = 0;
int unit = drive->select.b.unit & 1;
u8 cd_dma_fifo = 0, unit = drive->dn & 1;
if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
s_clc = 0;
......@@ -112,7 +111,7 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
}
pci_write_config_byte(dev, port, s_clc);
pci_write_config_byte(dev, port+drive->select.b.unit+2, (a_clc << 4) | r_clc);
pci_write_config_byte(dev, port + unit + 2, (a_clc << 4) | r_clc);
local_irq_restore(flags);
}
......@@ -154,7 +153,7 @@ static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed)
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 speed1 = speed;
u8 unit = (drive->select.b.unit & 0x01);
u8 unit = drive->dn & 1;
u8 tmpbyte = 0x00;
int m5229_udma = (hwif->channel) ? 0x57 : 0x56;
......
......@@ -468,7 +468,7 @@ static void program_drive_counts(ide_drive_t *drive, unsigned int index)
*/
if (index > 1) {
ide_hwif_t *hwif = drive->hwif;
ide_drive_t *peer = &hwif->drives[!drive->select.b.unit];
ide_drive_t *peer = &hwif->drives[!(drive->dn & 1)];
unsigned int mate = index ^ 1;
if (peer->dev_flags & IDE_DFLAG_PRESENT) {
......@@ -607,7 +607,7 @@ static void cmd640_set_pio_mode(ide_drive_t *drive, const u8 pio)
static void cmd640_init_dev(ide_drive_t *drive)
{
unsigned int i = drive->hwif->channel * 2 + drive->select.b.unit;
unsigned int i = drive->hwif->channel * 2 + (drive->dn & 1);
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
/*
......
......@@ -76,7 +76,7 @@ static unsigned int cs5535_udma_timings[5] =
static void cs5535_set_speed(ide_drive_t *drive, const u8 speed)
{
u32 reg = 0, dummy;
int unit = drive->select.b.unit;
u8 unit = drive->dn & 1;
/* Set the PIO timings */
if (speed < XFER_SW_DMA_0) {
......
......@@ -178,8 +178,7 @@ static void cy82c693_set_dma_mode(ide_drive_t *drive, const u8 mode)
#if CY82C693_DEBUG_INFO
printk(KERN_INFO "%s (ch=%d, dev=%d): set DMA mode to %d (single=%d)\n",
drive->name, HWIF(drive)->channel, drive->select.b.unit,
mode & 3, single);
drive->name, hwif->channel, drive->dn & 1, mode & 3, single);
#endif /* CY82C693_DEBUG_INFO */
/*
......@@ -224,7 +223,7 @@ static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio)
compute_clocks(pio, &pclk);
/* now let's write the clocks registers */
if (drive->select.b.unit == 0) {
if ((drive->dn & 1) == 0) {
/*
* set master drive
* address setup control register
......@@ -266,7 +265,7 @@ static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio)
#if CY82C693_DEBUG_INFO
printk(KERN_INFO "%s (ch=%d, dev=%d): set PIO timing to "
"(addr=0x%X, ior=0x%X, iow=0x%X, 8bit=0x%X)\n",
drive->name, hwif->channel, drive->select.b.unit,
drive->name, hwif->channel, drive->dn & 1,
addrCtrl, pclk.time_16r, pclk.time_16w, pclk.time_8);
#endif /* CY82C693_DEBUG_INFO */
}
......
......@@ -138,8 +138,7 @@ static void it821x_program_udma(ide_drive_t *drive, u16 timing)
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int channel = hwif->channel;
int unit = drive->select.b.unit;
u8 conf;
u8 unit = drive->dn & 1, conf;
/* Program UDMA timing bits */
if(itdev->clock_mode == ATA_66)
......@@ -168,13 +167,11 @@ static void it821x_clock_strategy(ide_drive_t *drive)
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
ide_drive_t *pair;
int clock, altclock, sel = 0;
u8 unit = drive->dn & 1, v;
u8 unit = drive->select.b.unit;
ide_drive_t *pair = &hwif->drives[1-unit];
int clock, altclock;
u8 v;
int sel = 0;
pair = &hwif->drives[1 - unit];
if(itdev->want[0][0] > itdev->want[1][0]) {
clock = itdev->want[0][1];
......@@ -240,16 +237,17 @@ static void it821x_clock_strategy(ide_drive_t *drive)
static void it821x_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
ide_hwif_t *hwif = drive->hwif;
ide_hwif_t *hwif = drive->hwif;
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
ide_drive_t *pair = &hwif->drives[1 - unit];
u8 set_pio = pio;
ide_drive_t *pair;
u8 unit = drive->dn & 1, set_pio = pio;
/* Spec says 89 ref driver uses 88 */
static u16 pio_timings[]= { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
static u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
pair = &hwif->drives[1 - unit];
/*
* Compute the best PIO mode we can for a given device. We must
* pick a speed that does not cause problems with the other device
......@@ -286,9 +284,7 @@ static void it821x_tune_mwdma (ide_drive_t *drive, byte mode_wanted)
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = (void *)ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
int channel = hwif->channel;
u8 conf;
u8 unit = drive->dn & 1, channel = hwif->channel, conf;
static u16 dma[] = { 0x8866, 0x3222, 0x3121 };
static u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
......@@ -325,9 +321,7 @@ static void it821x_tune_udma (ide_drive_t *drive, byte mode_wanted)
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
int channel = hwif->channel;
u8 conf;
u8 unit = drive->dn & 1, channel = hwif->channel, conf;
static u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 };
static u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 };
......@@ -369,7 +363,8 @@ static void it821x_dma_start(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
u8 unit = drive->dn & 1;
if(itdev->mwdma[unit] != MWDMA_OFF)
it821x_program(drive, itdev->mwdma[unit]);
else if(itdev->udma[unit] != UDMA_OFF && itdev->timing10)
......@@ -389,9 +384,10 @@ static void it821x_dma_start(ide_drive_t *drive)
static int it821x_dma_end(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
int unit = drive->select.b.unit;
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int ret = __ide_dma_end(drive);
u8 unit = drive->dn & 1;
if(itdev->mwdma[unit] != MWDMA_OFF)
it821x_program(drive, itdev->pio[unit]);
return ret;
......
......@@ -160,8 +160,8 @@ static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
new |= bit;
/* Select PIO or DMA, DMA may only be selected for one drive/channel. */
bit = 1 << (20 + drive->select.b.unit + (hwif->channel << 1));
other = 1 << (20 + (1 - drive->select.b.unit) + (hwif->channel << 1));
bit = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1));
other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1));
new = use_dma ? ((new & ~other) | bit) : (new & ~bit);
if (new != *old) {
......
......@@ -179,7 +179,7 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio)
misc = addr_timings[clk][addr_pio];
/* select Index-0/1 for Register-A/B */
write_reg(drive->select.b.unit, MISC_REG);
write_reg(drive->dn & 1, MISC_REG);
/* set read cycle timings */
write_reg(tim, READ_REG);
/* set write cycle timings */
......
......@@ -126,7 +126,6 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
int unit = drive->select.b.unit;
unsigned int reg, timings;
unsigned short pci_clock;
unsigned int basereg = hwif->channel ? 0x50 : 0x40;
......@@ -155,7 +154,7 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
else
timings = mwdma_timing[pci_clock][mode - XFER_MW_DMA_0];
if (unit == 0) { /* are we configuring drive0? */
if ((drive->dn & 1) == 0) {
pci_read_config_dword(dev, basereg + 4, &reg);
timings |= reg & 0x80000000; /* preserve PIO format bit */
pci_write_config_dword(dev, basereg + 4, timings);
......
......@@ -291,7 +291,7 @@ static void scc_set_dma_mode(ide_drive_t *drive, const u8 speed)
static void scc_dma_host_set(ide_drive_t *drive, int on)
{
ide_hwif_t *hwif = drive->hwif;
u8 unit = (drive->select.b.unit & 0x01);
u8 unit = drive->dn & 1;
u8 dma_stat = scc_ide_inb(hwif->dma_base + 4);
if (on)
......
......@@ -153,7 +153,7 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed)
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 unit = (drive->select.b.unit & 0x01);
u8 unit = drive->dn & 1;
u8 ultra_enable = 0, ultra_timing = 0, dma_timing = 0;
......
......@@ -116,13 +116,14 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
{
ide_hwif_t *hwif = HWIF(drive);
unsigned long base = (unsigned long)hwif->hwif_data;
u8 unit = drive->dn & 1;
base += 0xA0 + r;
if (hwif->host_flags & IDE_HFLAG_MMIO)
base += hwif->channel << 6;
else
base += hwif->channel << 4;
base |= drive->select.b.unit << drive->select.b.unit;
base |= unit << unit;
return base;
}
......@@ -255,7 +256,7 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
: (mmio ? 0xB4 : 0x80);
u8 mode = 0;
u8 unit = drive->select.b.unit;
u8 unit = drive->dn & 1;
/* trim *taskfile* PIO to the slowest of the master/slave */
if (pair) {
......@@ -301,9 +302,9 @@ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
u16 ultra = 0, multi = 0;
u8 mode = 0, unit = drive->select.b.unit;
unsigned long base = (unsigned long)hwif->hwif_data;
u16 ultra = 0, multi = 0;
u8 mode = 0, unit = drive->dn & 1;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
: (mmio ? 0xB4 : 0x80);
......
......@@ -38,13 +38,12 @@ static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 channel_offset = hwif->channel ? 0x74 : 0x70;
u16 timing = 0;
u32 triflex_timings = 0;
u8 unit = (drive->select.b.unit & 0x01);
u16 timing = 0;
u8 channel_offset = hwif->channel ? 0x74 : 0x70, unit = drive->dn & 1;
pci_read_config_dword(dev, channel_offset, &triflex_timings);
switch(speed) {
case XFER_MW_DMA_2:
timing = 0x0103;
......
......@@ -433,7 +433,7 @@ pmac_ide_selectproc(ide_drive_t *drive)
if (pmif == NULL)
return;
if (drive->select.b.unit & 0x01)
if (drive->dn & 1)
writel(pmif->timings[1], PMAC_IDE_REG(IDE_TIMING_CONFIG));
else
writel(pmif->timings[0], PMAC_IDE_REG(IDE_TIMING_CONFIG));
......@@ -455,7 +455,7 @@ pmac_ide_kauai_selectproc(ide_drive_t *drive)
if (pmif == NULL)
return;
if (drive->select.b.unit & 0x01) {
if (drive->dn & 1) {
writel(pmif->timings[1], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG));
writel(pmif->timings[3], PMAC_IDE_REG(IDE_KAUAI_ULTRA_CONFIG));
} else {
......@@ -528,7 +528,7 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
return;
/* which drive is it ? */
timings = &pmif->timings[drive->select.b.unit & 0x01];
timings = &pmif->timings[drive->dn & 1];
t = *timings;
cycle_time = ide_pio_cycle_time(drive, pio);
......@@ -805,9 +805,9 @@ static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
int unit = (drive->select.b.unit & 0x01);
int ret = 0;
u32 *timings, *timings2, tl[2];
u8 unit = drive->dn & 1;
timings = &pmif->timings[unit];
timings2 = &pmif->timings[unit+2];
......@@ -1558,8 +1558,7 @@ pmac_ide_dma_setup(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
struct request *rq = HWGROUP(drive)->rq;
u8 unit = (drive->select.b.unit & 0x01);
u8 ata4;
u8 unit = drive->dn & 1, ata4;
if (pmif == NULL)
return 1;
......
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