Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c3f5d2c9f64b47aceb88f8d80fcb70fb9f9809f
Commit:     3c3f5d2c9f64b47aceb88f8d80fcb70fb9f9809f
Parent:     a01ba4011aa745be44d0290c5da5cb2dfb4e37ce
Author:     Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
AuthorDate: Wed May 16 00:51:44 2007 +0200
Committer:  Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
CommitDate: Wed May 16 00:51:44 2007 +0200

    cs5530/sc1200: add ->speedproc support
    
    * add {cs5530,sc1200}_tunepio() for programming PIO timings
    
    * add {cs5530,sc1200}_tune_chipset() (->speedproc method) for setting
      transfer mode and convert {cs5530,sc1200}_config_dma() to use it
    
    * bump driver version
    
    Signed-off-by: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
---
 drivers/ide/pci/cs5530.c |   57 +++++++++++++++++++++++++------------
 drivers/ide/pci/sc1200.c |   70 ++++++++++++++++++++++++++++-----------------
 2 files changed, 81 insertions(+), 46 deletions(-)

diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index ec52dbe..aacb79b 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/cs5530.c              Version 0.72    Mar 10 2007
+ * linux/drivers/ide/pci/cs5530.c              Version 0.73    Mar 10 2007
  *
  * Copyright (C) 2000                  Andre Hedrick <[EMAIL PROTECTED]>
  * Copyright (C) 2000                  Mark Lord <[EMAIL PROTECTED]>
@@ -62,6 +62,14 @@ static unsigned int cs5530_pio_timings[2][5] = {
 #define CS5530_BAD_PIO(timings) (((timings)&~0x80000000)==0x0000e132)
 #define CS5530_BASEREG(hwif)   (((hwif)->dma_base & ~0xf) + ((hwif)->channel ? 
0x30 : 0x20))
 
+static void cs5530_tunepio(ide_drive_t *drive, u8 pio)
+{
+       unsigned long basereg = CS5530_BASEREG(drive->hwif);
+       unsigned int format = (inl(basereg + 4) >> 31) & 1;
+
+       outl(cs5530_pio_timings[format][pio], basereg + ((drive->dn & 1)<<3));
+}
+
 /**
  *     cs5530_tuneproc         -       select/set PIO modes
  *
@@ -74,17 +82,10 @@ static unsigned int cs5530_pio_timings[2][5] = {
 
 static void cs5530_tuneproc (ide_drive_t *drive, u8 pio)       /* pio=255 
means "autotune" */
 {
-       ide_hwif_t      *hwif = HWIF(drive);
-       unsigned int    format;
-       unsigned long basereg = CS5530_BASEREG(hwif);
-       static u8       modes[5] = { XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, 
XFER_PIO_3, XFER_PIO_4};
-
        pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
-       if (!cs5530_set_xfer_mode(drive, modes[pio])) {
-               format = (inl(basereg + 4) >> 31) & 1;
-               outl(cs5530_pio_timings[format][pio],
-                       basereg+(drive->select.b.unit<<3));
-       }
+
+       if (cs5530_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0)
+               cs5530_tunepio(drive, pio);
 }
 
 /**
@@ -136,18 +137,27 @@ out:
 
 static int cs5530_config_dma(ide_drive_t *drive)
 {
-       ide_hwif_t *hwif = drive->hwif;
-       unsigned int reg, timings = 0;
+       if (ide_use_dma(drive)) {
+               u8 mode = ide_max_dma_mode(drive);
+
+               if (mode && drive->hwif->speedproc(drive, mode) == 0)
+                       return 0;
+       }
+
+       return 1;
+}
+
+static int cs5530_tune_chipset(ide_drive_t *drive, u8 mode)
+{
        unsigned long basereg;
-       u8 unit = drive->dn & 1, mode = 0;
+       unsigned int reg, timings = 0;
 
-       if (ide_use_dma(drive))
-               mode = ide_max_dma_mode(drive);
+       mode = ide_rate_filter(drive, mode);
 
        /*
         * Tell the drive to switch to the new mode; abort on failure.
         */
-       if (!mode || cs5530_set_xfer_mode(drive, mode))
+       if (cs5530_set_xfer_mode(drive, mode))
                return 1;       /* failure */
 
        /*
@@ -160,14 +170,21 @@ static int cs5530_config_dma(ide_drive_t *drive)
                case XFER_MW_DMA_0:     timings = 0x00077771; break;
                case XFER_MW_DMA_1:     timings = 0x00012121; break;
                case XFER_MW_DMA_2:     timings = 0x00002020; break;
+               case XFER_PIO_4:
+               case XFER_PIO_3:
+               case XFER_PIO_2:
+               case XFER_PIO_1:
+               case XFER_PIO_0:
+                       cs5530_tunepio(drive, mode - XFER_PIO_0);
+                       return 0;
                default:
                        BUG();
                        break;
        }
-       basereg = CS5530_BASEREG(hwif);
+       basereg = CS5530_BASEREG(drive->hwif);
        reg = inl(basereg + 4);                 /* get drive0 config register */
        timings |= reg & 0x80000000;            /* preserve PIO format bit */
-       if (unit == 0) {                        /* are we configuring drive0? */
+       if ((drive-> dn & 1) == 0) {            /* are we configuring drive0? */
                outl(timings, basereg + 4);     /* write drive0 config register 
*/
        } else {
                if (timings & 0x00100000)
@@ -293,6 +310,8 @@ static void __devinit init_hwif_cs5530 (ide_hwif_t *hwif)
                hwif->serialized = hwif->mate->serialized = 1;
 
        hwif->tuneproc = &cs5530_tuneproc;
+       hwif->speedproc = &cs5530_tune_chipset;
+
        basereg = CS5530_BASEREG(hwif);
        d0_timings = inl(basereg + 0);
        if (CS5530_BAD_PIO(d0_timings)) {
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 65dcabe..c989fd9 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/sc1200.c              Version 0.93    Mar 10 2007
+ * linux/drivers/ide/pci/sc1200.c              Version 0.94    Mar 10 2007
  *
  * Copyright (C) 2000-2002             Mark Lord <[EMAIL PROTECTED]>
  * Copyright (C)      2007             Bartlomiej Zolnierkiewicz
@@ -95,6 +95,20 @@ static const unsigned int sc1200_pio_timings[4][5] =
  */
 //#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172)
 
+static void sc1200_tunepio(ide_drive_t *drive, u8 pio)
+{
+       ide_hwif_t *hwif = drive->hwif;
+       struct pci_dev *pdev = hwif->pci_dev;
+       unsigned int basereg = hwif->channel ? 0x50 : 0x40, format = 0;
+
+       pci_read_config_dword(pdev, basereg + 4, &format);
+       format = (format >> 31) & 1;
+       if (format)
+               format += sc1200_get_pci_clock();
+       pci_write_config_dword(pdev, basereg + ((drive->dn & 1) << 3),
+                              sc1200_pio_timings[format][pio]);
+}
+
 /*
  *     The SC1200 specifies that two drives sharing a cable cannot mix
  *     UDMA/MDMA.  It has to be one or the other, for the pair, though
@@ -124,11 +138,7 @@ out:
        return mask;
 }
 
-/*
- * sc1200_config_dma2() handles selection/setting of DMA/UDMA modes
- * for both the chipset and drive.
- */
-static int sc1200_config_dma2 (ide_drive_t *drive, int mode)
+static int sc1200_tune_chipset(ide_drive_t *drive, u8 mode)
 {
        ide_hwif_t              *hwif = HWIF(drive);
        int                     unit = drive->select.b.unit;
@@ -136,14 +146,26 @@ static int sc1200_config_dma2 (ide_drive_t *drive, int 
mode)
        unsigned short          pci_clock;
        unsigned int            basereg = hwif->channel ? 0x50 : 0x40;
 
+       mode = ide_rate_filter(drive, mode);
+
        /*
         * Tell the drive to switch to the new mode; abort on failure.
         */
-       if (!mode || sc1200_set_xfer_mode(drive, mode)) {
+       if (sc1200_set_xfer_mode(drive, mode)) {
                printk("SC1200: set xfer mode failure\n");
                return 1;       /* failure */
        }
 
+       switch (mode) {
+       case XFER_PIO_4:
+       case XFER_PIO_3:
+       case XFER_PIO_2:
+       case XFER_PIO_1:
+       case XFER_PIO_0:
+               sc1200_tunepio(drive, mode - XFER_PIO_0);
+               return 0;
+       }
+
        pci_clock = sc1200_get_pci_clock();
 
        /*
@@ -196,11 +218,9 @@ static int sc1200_config_dma2 (ide_drive_t *drive, int 
mode)
                                case PCI_CLK_66:        timings = 0x00015151;   
break;
                        }
                        break;
-       }
-
-       if (timings == 0) {
-               printk("%s: sc1200_config_dma: huh? mode=%02x clk=%x \n", 
drive->name, mode, pci_clock);
-               return 1;       /* failure */
+               default:
+                       BUG();
+                       break;
        }
 
        if (unit == 0) {                        /* are we configuring drive0? */
@@ -220,12 +240,14 @@ static int sc1200_config_dma2 (ide_drive_t *drive, int 
mode)
  */
 static int sc1200_config_dma (ide_drive_t *drive)
 {
-       u8 mode = 0;
+       if (ide_use_dma(drive)) {
+               u8 mode = ide_max_dma_mode(drive);
 
-       if (ide_use_dma(drive))
-               mode = ide_max_dma_mode(drive);
+               if (mode && drive->hwif->speedproc(drive, mode) == 0)
+                       return 0;
+       }
 
-       return sc1200_config_dma2(drive, mode);
+       return 1;
 }
 
 
@@ -265,8 +287,6 @@ static int sc1200_ide_dma_end (ide_drive_t *drive)
 static void sc1200_tuneproc (ide_drive_t *drive, byte pio)     /* mode=255 
means "autotune" */
 {
        ide_hwif_t      *hwif = HWIF(drive);
-       unsigned int    format;
-       static byte     modes[5] = {XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, 
XFER_PIO_3, XFER_PIO_4};
        int             mode = -1;
 
        /*
@@ -283,21 +303,16 @@ static void sc1200_tuneproc (ide_drive_t *drive, byte 
pio)        /* mode=255 means "au
        if (mode != -1) {
                printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
                hwif->dma_off_quietly(drive);
-               if (sc1200_config_dma2(drive, mode) == 0)
+               if (sc1200_tune_chipset(drive, mode) == 0)
                        hwif->dma_host_on(drive);
                return;
        }
 
        pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
        printk("SC1200: %s: setting PIO mode%d\n", drive->name, pio);
-       if (!sc1200_set_xfer_mode(drive, modes[pio])) {
-               unsigned int basereg = hwif->channel ? 0x50 : 0x40;
-               pci_read_config_dword (hwif->pci_dev, basereg+4, &format);
-               format = (format >> 31) & 1;
-               if (format)
-                       format += sc1200_get_pci_clock();
-               pci_write_config_dword(hwif->pci_dev, basereg + 
(drive->select.b.unit << 3), sc1200_pio_timings[format][pio]);
-       }
+
+       if (sc1200_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0)
+               sc1200_tunepio(drive, pio);
 }
 
 #ifdef CONFIG_PM
@@ -447,6 +462,7 @@ static void __devinit init_hwif_sc1200 (ide_hwif_t *hwif)
                if (!noautodma)
                        hwif->autodma = 1;
                hwif->tuneproc = &sc1200_tuneproc;
+               hwif->speedproc = &sc1200_tune_chipset;
        }
         hwif->atapi_dma = 1;
         hwif->ultra_mask = 0x07;
-
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