9ff6f72f43
* hpt34x.c: disable DMA masks for HPT345 (hwif->autodma is zero so DMA won't be enabled anyway). * trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag (hwif->autodma is zero so DMA won't be enabled anyway). * Check noautodma global variable instead of drive->autodma in ide_tune_dma(). This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris, au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers. * Remove hwif->autodma (it was not checked by IDE core code anyway) and drive->autodma (was set by all host drivers - except HPT345/TRM290 special cases - unless "ide=nodma" was used). While at it: - remove needless printk() from icside.c - remove stale FIXME/comment from ide-probe.c - don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c (this setting was always later over-ridden by host drivers anyway) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
281 lines
7.9 KiB
C
281 lines
7.9 KiB
C
/*
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* linux/drivers/ide/pci/generic.c Version 0.11 December 30, 2002
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*
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* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
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* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* For the avoidance of doubt the "preferred form" of this code is one which
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* is in an open non patent encumbered format. Where cryptographic key signing
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* forms part of the process of creating an executable the information
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* including keys needed to generate an equivalently functional executable
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* are deemed to be part of the source code.
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/mm.h>
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#include <linux/ioport.h>
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#include <linux/blkdev.h>
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#include <linux/hdreg.h>
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#include <linux/pci.h>
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#include <linux/ide.h>
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#include <linux/init.h>
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#include <asm/io.h>
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static int ide_generic_all; /* Set to claim all devices */
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/*
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* the module_param_named() was added for the modular case
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* the __setup() is left as compatibility for existing setups
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*/
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#ifndef MODULE
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static int __init ide_generic_all_on(char *unused)
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{
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ide_generic_all = 1;
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printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
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return 1;
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}
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__setup("all-generic-ide", ide_generic_all_on);
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#endif
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module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
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MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
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static void __devinit init_hwif_generic (ide_hwif_t *hwif)
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{
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switch(hwif->pci_dev->device) {
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case PCI_DEVICE_ID_UMC_UM8673F:
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case PCI_DEVICE_ID_UMC_UM8886A:
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case PCI_DEVICE_ID_UMC_UM8886BF:
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hwif->irq = hwif->channel ? 15 : 14;
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break;
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default:
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break;
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}
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if (!(hwif->dma_base))
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return;
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hwif->atapi_dma = 1;
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hwif->ultra_mask = 0x7f;
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hwif->mwdma_mask = 0x07;
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hwif->swdma_mask = 0x07;
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}
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#if 0
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/* Logic to add back later on */
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if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
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ide_pci_device_t *unknown = unknown_chipset;
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init_setup_unknown(dev, unknown);
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return 1;
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}
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return 0;
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#endif
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static ide_pci_device_t generic_chipsets[] __devinitdata = {
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{ /* 0 */
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.name = "Unknown",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 1 */
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.name = "NS87410",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 2 */
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.name = "SAMURAI",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 3 */
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.name = "HT6565",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 4 */
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.name = "UM8673F",
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.init_hwif = init_hwif_generic,
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.autodma = NODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 5 */
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.name = "UM8886A",
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.init_hwif = init_hwif_generic,
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.autodma = NODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 6 */
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.name = "UM8886BF",
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.init_hwif = init_hwif_generic,
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.autodma = NODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 7 */
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.name = "HINT_IDE",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 8 */
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.name = "VIA_IDE",
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.init_hwif = init_hwif_generic,
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.autodma = NOAUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 9 */
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.name = "OPTI621V",
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.init_hwif = init_hwif_generic,
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.autodma = NOAUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 10 */
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.name = "VIA8237SATA",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = OFF_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 11 */
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.name = "Piccolo0102",
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.init_hwif = init_hwif_generic,
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.autodma = NOAUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 12 */
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.name = "Piccolo0103",
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.init_hwif = init_hwif_generic,
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.autodma = NOAUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 13 */
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.name = "Piccolo0105",
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.init_hwif = init_hwif_generic,
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.autodma = NOAUTODMA,
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.bootable = ON_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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},{ /* 14 */
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.name = "Revolution",
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.init_hwif = init_hwif_generic,
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.autodma = AUTODMA,
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.bootable = OFF_BOARD,
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
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}
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};
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/**
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* generic_init_one - called when a PIIX is found
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* @dev: the generic device
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* @id: the matching pci id
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*
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* Called when the PCI registration layer (or the IDE initialization)
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* finds a device matching our IDE device tables.
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*/
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static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
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{
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ide_pci_device_t *d = &generic_chipsets[id->driver_data];
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int ret = -ENODEV;
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/* Don't use the generic entry unless instructed to do so */
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if (id->driver_data == 0 && ide_generic_all == 0)
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goto out;
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switch (dev->vendor) {
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case PCI_VENDOR_ID_UMC:
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if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
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!(PCI_FUNC(dev->devfn) & 1))
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goto out; /* UM8886A/BF pair */
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break;
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case PCI_VENDOR_ID_OPTI:
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if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
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!(PCI_FUNC(dev->devfn) & 1))
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goto out;
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break;
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case PCI_VENDOR_ID_JMICRON:
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if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
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PCI_FUNC(dev->devfn) != 1)
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goto out;
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break;
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case PCI_VENDOR_ID_NS:
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if (dev->device == PCI_DEVICE_ID_NS_87410 &&
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(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
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goto out;
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break;
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}
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if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
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u16 command;
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pci_read_config_word(dev, PCI_COMMAND, &command);
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if (!(command & PCI_COMMAND_IO)) {
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printk(KERN_INFO "Skipping disabled %s IDE "
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"controller.\n", d->name);
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goto out;
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}
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}
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ret = ide_setup_pci_device(dev, d);
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out:
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return ret;
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}
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static const struct pci_device_id generic_pci_tbl[] = {
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{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
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{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
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{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
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{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
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{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
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{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
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#ifdef CONFIG_BLK_DEV_IDE_SATA
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{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
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#endif
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
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{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
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/*
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* Must come last. If you add entries adjust
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* this table and generic_chipsets[] appropriately.
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*/
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
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{ 0, },
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};
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MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
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static struct pci_driver driver = {
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.name = "PCI_IDE",
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.id_table = generic_pci_tbl,
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.probe = generic_init_one,
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};
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static int __init generic_ide_init(void)
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{
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return ide_pci_register_driver(&driver);
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}
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module_init(generic_ide_init);
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MODULE_AUTHOR("Andre Hedrick");
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MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
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MODULE_LICENSE("GPL");
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