431 lines
13 KiB
C
431 lines
13 KiB
C
/*-
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* Copyright (c) 1998,1999 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "pci.h"
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#include "apm.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <sys/bus.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#if NPCI > 0
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#endif
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#if NAPM > 0
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#include <machine/apm_bios.h>
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#endif
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#include <dev/ata/ata-all.h>
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#ifdef __alpha__
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#undef vtophys
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#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va)
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#endif
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/* misc defines */
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#define MIN(a,b) ((a)>(b)?(b):(a))
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#if NPCI > 0
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int32_t
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ata_dmainit(struct ata_softc *scp, int32_t device,
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int32_t apiomode, int32_t wdmamode, int32_t udmamode)
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{
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int32_t type, devno, error;
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void *dmatab;
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if (!scp->bmaddr)
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return -1;
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#ifdef ATA_DMADEBUG
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printf("ata%d: dmainit: ioaddr=0x%x altioaddr=0x%x, bmaddr=0x%x\n",
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scp->lun, scp->ioaddr, scp->altioaddr, scp->bmaddr);
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#endif
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if (!(dmatab = malloc(PAGE_SIZE, M_DEVBUF, M_NOWAIT)))
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return -1;
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if (((uintptr_t)dmatab >> PAGE_SHIFT) ^
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(((uintptr_t)dmatab + PAGE_SIZE - 1) >> PAGE_SHIFT)) {
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printf("ata_dmainit: dmatab crosses page boundary, no DMA\n");
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free(dmatab, M_DEVBUF);
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return -1;
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}
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scp->dmatab[(device == ATA_MASTER) ? 0 : 1] = dmatab;
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switch (type = pci_get_devid(scp->dev)) {
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case 0x71118086: /* Intel PIIX4 */
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if (udmamode >= 2) {
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int32_t mask48, new48;
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_UDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up UDMA2 mode on PIIX4 chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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devno = (scp->unit << 1) + ((device == ATA_MASTER) ? 0 : 1);
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mask48 = (1 << devno) + (3 << (16 + (devno << 2)));
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new48 = (1 << devno) + (2 << (16 + (devno << 2)));
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pci_write_config(scp->dev, 0x48,
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(pci_read_config(scp->dev, 0x48, 4) &
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~mask48) | new48, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_UDMA33;
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return 0;
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}
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/* FALLTHROUGH */
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case 0x70108086: /* Intel PIIX3 */
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if (wdmamode >= 2 && apiomode >= 4) {
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int32_t mask40, new40, mask44, new44;
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/* if SITRE not set doit for both channels */
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if (!((pci_read_config(scp->dev, 0x40, 4)>>(scp->unit<<8))&0x4000)){
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new40 = pci_read_config(scp->dev, 0x40, 4);
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new44 = pci_read_config(scp->dev, 0x44, 4);
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if (!(new40 & 0x00004000)) {
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new44 &= ~0x0000000f;
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new44 |= ((new40&0x00003000)>>10)|((new40&0x00000300)>>8);
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}
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if (!(new40 & 0x40000000)) {
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new44 &= ~0x000000f0;
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new44 |= ((new40&0x30000000)>>22)|((new40&0x03000000)>>20);
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}
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new40 |= 0x40004000;
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pci_write_config(scp->dev, 0x40, new40, 4);
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pci_write_config(scp->dev, 0x44, new44, 4);
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}
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_WDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up WDMA2 mode on PIIX4 chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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if (device == ATA_MASTER) {
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mask40 = 0x0000330f;
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new40 = 0x00002307;
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mask44 = 0;
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new44 = 0;
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} else {
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mask40 = 0x000000f0;
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new40 = 0x00000070;
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mask44 = 0x0000000f;
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new44 = 0x0000000b;
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}
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if (scp->unit) {
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mask40 <<= 16;
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new40 <<= 16;
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mask44 <<= 4;
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new44 <<= 4;
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}
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pci_write_config(scp->dev, 0x40,
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(pci_read_config(scp->dev, 0x40, 4) & ~mask40) |
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new40, 4);
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pci_write_config(scp->dev, 0x44,
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(pci_read_config(scp->dev, 0x44, 4) & ~mask44) |
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new44, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_DMA;
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return 0;
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}
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break;
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case 0x12308086: /* Intel PIIX */
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/* probably not worth the trouble */
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break;
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case 0x4d33105a: /* Promise Ultra/33 / FastTrack controllers */
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case 0x4d38105a: /* Promise Ultra/66 controllers */
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/* the Promise can only do DMA on ATA disks not on ATAPI devices */
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if ((device == ATA_MASTER && scp->devices & ATA_ATAPI_MASTER) ||
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(device == ATA_SLAVE && scp->devices & ATA_ATAPI_SLAVE))
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break;
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devno = (scp->unit << 1) + ((device == ATA_MASTER) ? 0 : 1);
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if (udmamode >=4 && type == 0x4d38105a) {
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_UDMA4, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up UDMA4 mode on Promise chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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pci_write_config(scp->dev, 0x60 + (devno << 2), 0x004117f3, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_UDMA66;
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return 0;
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}
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if (udmamode >=2) {
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_UDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up UDMA2 mode on Promise chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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pci_write_config(scp->dev, 0x60 + (devno << 2), 0x004127f3, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_UDMA33;
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return 0;
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}
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else if (wdmamode >= 2 && apiomode >= 4) {
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_WDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up WDMA2 mode on Promise chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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pci_write_config(scp->dev, 0x60 + (devno << 2), 0x004367f3, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_DMA;
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return 0;
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}
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else {
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if (bootverbose)
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printf("ata%d: %s: setting PIO mode on Promise chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave");
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pci_write_config(scp->dev, 0x60 + (devno << 2), 0x004fe924, 4);
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}
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break;
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case 0x522910b9: /* AcerLabs Aladdin IV/V */
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/* the Aladdin has to be setup specially for ATAPI devices */
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if ((device == ATA_MASTER && scp->devices & ATA_ATAPI_MASTER) ||
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(device == ATA_SLAVE && scp->devices & ATA_ATAPI_SLAVE)) {
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int8_t word53 = pci_read_config(scp->dev, 0x53, 1);
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/* if needed set atapi fifo & dma */
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if ((udmamode >=2) || (wdmamode >= 2 && apiomode >= 4)) {
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pci_write_config(scp->dev, 0x53, word53 | 0x03, 1);
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scp->flags |= ATA_ATAPI_DMA_RO;
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if (device == ATA_MASTER)
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outb(scp->bmaddr + ATA_BMSTAT_PORT,
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inb(scp->bmaddr + ATA_BMSTAT_PORT) |
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ATA_BMSTAT_DMA_MASTER);
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else
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outb(scp->bmaddr + ATA_BMSTAT_PORT,
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inb(scp->bmaddr + ATA_BMSTAT_PORT) |
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ATA_BMSTAT_DMA_SLAVE);
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}
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else {
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pci_write_config(scp->dev, 0x53, (word53 & ~0x01) | 0x02, 1);
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}
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}
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if (udmamode >=2) {
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int32_t word54 = pci_read_config(scp->dev, 0x54, 4);
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_UDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up UDMA2 mode on Aladdin chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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word54 |= 0x5555;
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word54 |= (0x0a << (16 + (scp->unit << 3) + (device << 2)));
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pci_write_config(scp->dev, 0x54, word54, 4);
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_UDMA33;
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return 0;
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}
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else if (wdmamode >= 2 && apiomode >= 4) {
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_WDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up WDMA2 mode on Aladdin chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_DMA;
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return 0;
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}
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break;
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default: /* unknown controller chip */
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/* better not try generic DMA on ATAPI devices it almost never works */
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if ((device == ATA_MASTER && scp->devices & ATA_ATAPI_MASTER) ||
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(device == ATA_SLAVE && scp->devices & ATA_ATAPI_SLAVE))
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break;
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/* well, we have no support for this, but try anyways */
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if (((wdmamode >= 2 && apiomode >= 4) || udmamode >= 2) &&
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(inb(scp->bmaddr + ATA_BMSTAT_PORT) &
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((device == ATA_MASTER) ?
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ATA_BMSTAT_DMA_SLAVE : ATA_BMSTAT_DMA_MASTER))) {
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error = ata_command(scp, device, ATA_C_SETFEATURES, 0, 0, 0,
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ATA_WDMA2, ATA_C_FEA_SETXFER, ATA_IGNORE_INTR);
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if (bootverbose)
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printf("ata%d: %s: %s setting up WDMA2 mode on generic chip\n",
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scp->lun, (device == ATA_MASTER) ? "master" : "slave",
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(error) ? "failed" : "success");
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if (error)
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break;
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scp->mode[(device == ATA_MASTER) ? 0 : 1] = ATA_MODE_DMA;
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return 0;
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}
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}
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free(dmatab, M_DEVBUF);
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return -1;
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}
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int32_t
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ata_dmasetup(struct ata_softc *scp, int32_t device,
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int8_t *data, int32_t count, int32_t flags)
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{
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struct ata_dmaentry *dmatab;
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u_int32_t dma_count, dma_base;
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int32_t i = 0;
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#ifdef ATA_DMADEBUG
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printf("ata%d: dmasetup\n", scp->lun);
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#endif
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if (((uintptr_t)data & 1) || (count & 1))
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return -1;
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if (!count) {
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#ifdef ATA_DMADEBUG
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printf("ata%d: zero length DMA transfer attempt on %s\n",
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scp->lun, ((device == ATA_MASTER) ? "master" : "slave"));
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#endif
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return -1;
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}
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dmatab = scp->dmatab[(device == ATA_MASTER) ? 0 : 1];
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dma_base = vtophys(data);
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dma_count = MIN(count, (PAGE_SIZE - ((uintptr_t)data & PAGE_MASK)));
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data += dma_count;
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count -= dma_count;
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while (count) {
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dmatab[i].base = dma_base;
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dmatab[i].count = (dma_count & 0xffff);
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i++;
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if (i >= ATA_DMA_ENTRIES) {
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printf("ata%d: too many segments in DMA table for %s\n",
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scp->lun, (device ? "slave" : "master"));
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return -1;
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}
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dma_base = vtophys(data);
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dma_count = MIN(count, PAGE_SIZE);
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data += MIN(count, PAGE_SIZE);
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count -= MIN(count, PAGE_SIZE);
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}
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#ifdef ATA_DMADEBUG
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printf("ata_dmasetup: base=%08x count%08x\n", dma_base, dma_count);
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#endif
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dmatab[i].base = dma_base;
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dmatab[i].count = (dma_count & 0xffff) | ATA_DMA_EOT;
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outl(scp->bmaddr + ATA_BMDTP_PORT, vtophys(dmatab));
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#ifdef ATA_DMADEBUG
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printf("dmatab=%08x %08x\n",
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vtophys(dmatab), inl(scp->bmaddr+ATA_BMDTP_PORT));
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#endif
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outb(scp->bmaddr + ATA_BMCMD_PORT, flags ? ATA_BMCMD_WRITE_READ:0);
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outb(scp->bmaddr + ATA_BMSTAT_PORT, (inb(scp->bmaddr + ATA_BMSTAT_PORT) |
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(ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
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return 0;
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}
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void
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ata_dmastart(struct ata_softc *scp, int32_t device)
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{
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#ifdef ATA_DMADEBUG
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printf("ata%d: dmastart\n", scp->lun);
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#endif
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outb(scp->bmaddr + ATA_BMCMD_PORT,
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inb(scp->bmaddr + ATA_BMCMD_PORT) | ATA_BMCMD_START_STOP);
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}
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int32_t
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ata_dmadone(struct ata_softc *scp, int32_t device)
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{
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#ifdef ATA_DMADEBUG
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printf("ata%d: dmadone\n", scp->lun);
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#endif
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outb(scp->bmaddr + ATA_BMCMD_PORT,
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inb(scp->bmaddr + ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
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return inb(scp->bmaddr + ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
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}
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int32_t
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ata_dmastatus(struct ata_softc *scp, int32_t device)
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{
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#ifdef ATA_DMADEBUG
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printf("ata%d: dmastatus\n", scp->lun);
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#endif
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return inb(scp->bmaddr + ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
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}
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#else /* NPCI > 0 */
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int32_t
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ata_dmainit(struct ata_softc *scp, int32_t device,
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int32_t piomode, int32_t wdmamode, int32_t udmamode)
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{
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return -1;
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}
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int32_t
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ata_dmasetup(struct ata_softc *scp, int32_t device,
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int8_t *data, int32_t count, int32_t flags)
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{
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return -1;
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}
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void
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ata_dmastart(struct ata_softc *scp, int32_t device)
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{
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}
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int32_t
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ata_dmadone(struct ata_softc *scp, int32_t device)
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{
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return -1;
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}
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int32_t
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ata_dmastatus(struct ata_softc *scp, int32_t device)
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{
|
|
return -1;
|
|
}
|
|
|
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#endif /* NPCI > 0 */
|