/* $NetBSD: pciide.c,v 1.12 2012/01/22 13:08:16 phx Exp $ */

/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/param.h>

#include <lib/libsa/stand.h>

#include "globals.h"

static void cmdidefix(struct dkdev_ata *);
static void apoidefix(struct dkdev_ata *);
static void iteidefix(struct dkdev_ata *);

static uint32_t pciiobase = PCI_XIOBASE;

struct myops {
       void (*chipfix)(struct dkdev_ata *);
       int (*presense)(struct dkdev_ata *, int);
};
static struct myops defaultops = { NULL, NULL };
static struct myops cmdideops = { cmdidefix, NULL };
static struct myops apoideops = { apoidefix, NULL };
static struct myops iteideops = { iteidefix, NULL };
static struct myops *myops;

int
pciide_match(unsigned tag, void *data)
{
       unsigned v;

       v = pcicfgread(tag, PCI_ID_REG);
       switch (v) {
       case PCI_DEVICE(0x1095, 0x0680): /* SiI 0680 IDE */
               myops = &cmdideops;
               return 1;
       case PCI_DEVICE(0x1106, 0x0571): /* VIA 82C586A/B/686A/B IDE */
       case PCI_DEVICE(0x1106, 0x1571): /* VIA 82C586 IDE */
       case PCI_DEVICE(0x1106, 0x3164): /* VIA VT6410 RAID IDE */
               myops = &apoideops;
               return 1;
       case PCI_DEVICE(0x1283, 0x8211): /* ITE 8211 IDE */
               myops = &iteideops;
               return 1;
       case PCI_DEVICE(0x10ad, 0x0105): /* Symphony Labs 82C105 IDE */
       case PCI_DEVICE(0x10b8, 0x5229): /* ALi IDE */
       case PCI_DEVICE(0x1191, 0x0008): /* ACARD ATP865 */
       case PCI_DEVICE(0x1191, 0x0009): /* ACARD ATP865A */
               myops = &defaultops;
               return 1;
       }
       return 0;
}

void *
pciide_init(unsigned tag, void *data)
{
       static int cntrl = 0;
       int native, n, retries;
       unsigned val;
       struct dkdev_ata *l;

       l = alloc(sizeof(struct dkdev_ata));
       memset(l, 0, sizeof(struct dkdev_ata));
       l->iobuf = allocaligned(512, 16);
       l->tag = tag;

       /* chipset specific fixes */
       if (myops->chipfix)
               (*myops->chipfix)(l);

       val = pcicfgread(tag, PCI_CLASS_REG);
       native = PCI_CLASS(val) != PCI_CLASS_IDE ||
           (PCI_INTERFACE(val) & 05) != 0;

       if (native) {
               /* native, use BAR 01234 */
               l->bar[0] = pciiobase + (pcicfgread(tag, 0x10) &~ 01);
               l->bar[1] = pciiobase + (pcicfgread(tag, 0x14) &~ 01);
               l->bar[2] = pciiobase + (pcicfgread(tag, 0x18) &~ 01);
               l->bar[3] = pciiobase + (pcicfgread(tag, 0x1c) &~ 01);
               l->bar[4] = pciiobase + (pcicfgread(tag, 0x20) &~ 01);
               l->chan[0].cmd = l->bar[0];
               l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02;
               l->chan[0].dma = l->bar[4] + 0x0;
               l->chan[1].cmd = l->bar[2];
               l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02;
               l->chan[1].dma = l->bar[4] + 0x8;
       }
       else {
               /* legacy */
               l->bar[0]= pciiobase + 0x1f0;
               l->bar[1]= pciiobase + 0x3f4;
               l->bar[2]= pciiobase + 0x170;
               l->bar[3]= pciiobase + 0x374;
               l->chan[0].cmd = l->bar[0];
               l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02;
               l->chan[0].dma = 0;
               l->chan[1].cmd = l->bar[2];
               l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02;
               l->chan[1].dma = 0;
       }

       for (n = 0; n < 2; n++) {
               if (myops->presense != NULL && (*myops->presense)(l, n) == 0) {
                       DPRINTF(("channel %d not present\n", n));
                       l->presense[n] = 0;
                       continue;
               } else if (get_drive_config(cntrl * 2 + n) == 0) {
                       DPRINTF(("channel %d disabled by config\n", n));
                       l->presense[n] = 0;
                       continue;
               }

               if (atachkpwr(l, n) != ATA_PWR_ACTIVE) {
                       /* drive is probably sleeping, wake it up */
                       for (retries = 0; retries < 10; retries++) {
                               wakeup_drive(l, n);
                               DPRINTF(("channel %d spinning up...\n", n));
                               delay(1000 * 1000);
                               l->presense[n] = perform_atareset(l, n);
                               if (atachkpwr(l, n) == ATA_PWR_ACTIVE)
                                       break;
                       }
               } else {
                       /* check to see whether soft reset works */
                       DPRINTF(("channel %d active\n", n));
                       l->presense[n] = perform_atareset(l, n);
               }

               if (l->presense[n])
                       printf("channel %d present\n", n);
       }

       cntrl++;        /* increment controller number for next call */
       return l;
}

static void
cmdidefix(struct dkdev_ata *l)
{
       unsigned v;

       v = pcicfgread(l->tag, 0x80);
       pcicfgwrite(l->tag, 0x80, (v & ~0xff) | 0x01);
       v = pcicfgread(l->tag, 0x84);
       pcicfgwrite(l->tag, 0x84, (v & ~0xff) | 0x01);
       v = pcicfgread(l->tag, 0xa4);
       pcicfgwrite(l->tag, 0xa4, (v & ~0xffff) | 0x328a);
       v = pcicfgread(l->tag, 0xb4);
       pcicfgwrite(l->tag, 0xb4, (v & ~0xffff) | 0x328a);
}

static void
apoidefix(struct dkdev_ata *l)
{
       unsigned v;

       /* enable primary and secondary channel */
       v = pcicfgread(l->tag, 0x40) & ~0x03;
       pcicfgwrite(l->tag, 0x40, v | 0x03);
}

static void
iteidefix(struct dkdev_ata *l)
{
       unsigned v;

       /* set PCI mode and 66Mhz reference clock, disable IT8212 RAID */
       v = pcicfgread(l->tag, 0x50);
       pcicfgwrite(l->tag, 0x50, v & ~0x83);

       /* i/o configuration, enable channels, cables, IORDY */
       v = pcicfgread(l->tag, 0x40);
       pcicfgwrite(l->tag, 0x40, (v & ~0xffffff) | 0x36a0f3);
}

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.