ide: add PIO masks

[karo-tx-linux.git] / drivers / ide / pci / tc86c001.c

diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index 2ad72bbda34217bb3b351bda50065ee5d5385b4f..ec79bacc30c2fadf7bdd4d1914abdc1b361257fc 100644 (file)
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -13,18 +13,13 @@
 #include <linux/pci.h>
 #include <linux/ide.h>
 
-static inline u8 tc86c001_ratemask(ide_drive_t *drive)
-{
-       return eighty_ninty_three(drive) ? 2 : 1;
-}
-
 static int tc86c001_tune_chipset(ide_drive_t *drive, u8 speed)
 {
        ide_hwif_t *hwif        = HWIF(drive);
        unsigned long scr_port  = hwif->config_data + (drive->dn ? 0x02 : 0x00);
        u16 mode, scr           = hwif->INW(scr_port);
 
-       speed = ide_rate_filter(tc86c001_ratemask(drive), speed);
+       speed = ide_rate_filter(drive, speed);
 
        switch (speed) {
                case XFER_UDMA_4:       mode = 0x00c0; break;
@@ -45,14 +40,14 @@ static int tc86c001_tune_chipset(ide_drive_t *drive, u8 speed)
 
        scr &= (speed < XFER_MW_DMA_0) ? 0xf8ff : 0xff0f;
        scr |= mode;
-       hwif->OUTW(scr, scr_port);
+       outw(scr, scr_port);
 
        return ide_config_drive_speed(drive, speed);
 }
 
 static void tc86c001_tune_drive(ide_drive_t *drive, u8 pio)
 {
-       pio =  ide_get_best_pio_mode(drive, pio, 4, NULL);
+       pio = ide_get_best_pio_mode(drive, pio, 4);
        (void) tc86c001_tune_chipset(drive, XFER_PIO_0 + pio);
 }
 
@@ -89,15 +84,15 @@ static int tc86c001_timer_expiry(ide_drive_t *drive)
                       "attempting recovery...\n", drive->name);
 
                /* Stop DMA */
-               hwif->OUTB(dma_cmd & ~0x01, hwif->dma_command);
+               outb(dma_cmd & ~0x01, hwif->dma_command);
 
                /* Setup the dummy DMA transfer */
-               hwif->OUTW(0, sc_base + 0x0a);  /* Sector Count */
-               hwif->OUTW(0, twcr_port);       /* Transfer Word Count 1 or 2 */
+               outw(0, sc_base + 0x0a);        /* Sector Count */
+               outw(0, twcr_port);     /* Transfer Word Count 1 or 2 */
 
                /* Start the dummy DMA transfer */
-               hwif->OUTB(0x00, hwif->dma_command); /* clear R_OR_WCTR for write */
-               hwif->OUTB(0x01, hwif->dma_command); /* set START_STOPBM */
+               outb(0x00, hwif->dma_command); /* clear R_OR_WCTR for write */
+               outb(0x01, hwif->dma_command); /* set START_STOPBM */
 
                /*
                 * If an interrupt was pending, it should come thru shortly.
@@ -128,8 +123,8 @@ static void tc86c001_dma_start(ide_drive_t *drive)
         * the appropriate system control registers for DMA to work
         * with LBA48 and ATAPI devices...
         */
-       hwif->OUTW(nsectors, sc_base + 0x0a);   /* Sector Count */
-       hwif->OUTW(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */
+       outw(nsectors, sc_base + 0x0a); /* Sector Count */
+       outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */
 
        /* Install our timeout expiry hook, saving the current handler... */
        ide_set_hwifdata(hwif, hwgroup->expiry);
@@ -168,40 +163,19 @@ static int tc86c001_busproc(ide_drive_t *drive, int state)
        }
 
        /* System Control 1 Register bit 11 (ATA Hard Reset) write */
-       hwif->OUTW(scr1, sc_base + 0x00);
+       outw(scr1, sc_base + 0x00);
        return 0;
 }
 
-static int config_chipset_for_dma(ide_drive_t *drive)
-{
-       u8 speed = ide_dma_speed(drive, tc86c001_ratemask(drive));
-
-       if (!speed)
-               return 0;
-
-       (void) tc86c001_tune_chipset(drive, speed);
-       return ide_dma_enable(drive);
-}
-
 static int tc86c001_config_drive_xfer_rate(ide_drive_t *drive)
 {
-       ide_hwif_t *hwif        = HWIF(drive);
-       struct hd_driveid *id   = drive->id;
-
-       if ((id->capability & 1) && drive->autodma) {
-
-               if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-                       return hwif->ide_dma_on(drive);
-
-               goto fast_ata_pio;
+       if (ide_tune_dma(drive))
+               return 0;
 
-       } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+       if (ide_use_fast_pio(drive))
                tc86c001_tune_drive(drive, 255);
-               return hwif->ide_dma_off_quietly(drive);
-       }
-       /* IORDY not supported */
-       return 0;
+
+       return -1;
 }
 
 static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
@@ -210,13 +184,13 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
        u16 scr1                = hwif->INW(sc_base + 0x00);;
 
        /* System Control 1 Register bit 15 (Soft Reset) set */
-       hwif->OUTW(scr1 |  0x8000, sc_base + 0x00);
+       outw(scr1 |  0x8000, sc_base + 0x00);
 
        /* System Control 1 Register bit 14 (FIFO Reset) set */
-       hwif->OUTW(scr1 |  0x4000, sc_base + 0x00);
+       outw(scr1 |  0x4000, sc_base + 0x00);
 
        /* System Control 1 Register: reset clear */
-       hwif->OUTW(scr1 & ~0xc000, sc_base + 0x00);
+       outw(scr1 & ~0xc000, sc_base + 0x00);
 
        /* Store the system control register base for convenience... */
        hwif->config_data = sc_base;
@@ -234,7 +208,7 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
         * Sector Count Control Register bits 0 and 1 set:
         * software sets Sector Count Register for master and slave device
         */
-       hwif->OUTW(0x0003, sc_base + 0x0c);
+       outw(0x0003, sc_base + 0x0c);
 
        /* Sector Count Register limit */
        hwif->rqsize     = 0xffff;
@@ -246,13 +220,13 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
        hwif->ide_dma_check     = &tc86c001_config_drive_xfer_rate;
        hwif->dma_start         = &tc86c001_dma_start;
 
-       if (!hwif->udma_four) {
+       if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
                /*
                 * System Control  1 Register bit 13 (PDIAGN):
                 * 0=80-pin cable, 1=40-pin cable
                 */
                scr1 = hwif->INW(sc_base + 0x00);
-               hwif->udma_four = (scr1 & 0x2000) ? 0 : 1;
+               hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
        }
 
        if (!noautodma)
@@ -274,9 +248,10 @@ static ide_pci_device_t tc86c001_chipset __devinitdata = {
        .name           = "TC86C001",
        .init_chipset   = init_chipset_tc86c001,
        .init_hwif      = init_hwif_tc86c001,
-       .channels       = 1,
        .autodma        = AUTODMA,
-       .bootable       = OFF_BOARD
+       .bootable       = OFF_BOARD,
+       .host_flags     = IDE_HFLAG_SINGLE,
+       .pio_mask       = ATA_PIO4,
 };
 
 static int __devinit tc86c001_init_one(struct pci_dev *dev,