generic ide pci init code

drivers/ide/pci/generic.c

+/*
+ *  linux/drivers/ide/pci-orphan.c	Version 0.01	December 8, 1997
+ *
+ *  Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
+ */
+
+
+#undef REALLY_SLOW_IO		/* most systems can safely undef this */
+
+#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#include "generic.h"
+
+static unsigned int __init init_chipset_generic (struct pci_dev *dev, const char *name)
+{
+	return 0;
+}
+
+static void __init init_hwif_generic (ide_hwif_t *hwif)
+{
+	switch(hwif->pci_dev->device) {
+		case PCI_DEVICE_ID_UMC_UM8673F:
+		case PCI_DEVICE_ID_UMC_UM8886A:
+		case PCI_DEVICE_ID_UMC_UM8886BF:
+			hwif->irq = hwif->channel ? 15 : 14;
+			break;
+		default:
+			break;
+	}
+
+	if (!(hwif->dma_base))
+		return;
+
+	hwif->atapi_dma = 1;
+	hwif->ultra_mask = 0x7f;
+	hwif->mwdma_mask = 0x07;
+	hwif->swdma_mask = 0x07;
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+	if (!noautodma)
+		hwif->autodma = 1;
+	hwif->drives[0].autodma = hwif->autodma;
+	hwif->drives[1].autodma = hwif->autodma;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+}
+
+static void init_dma_generic (ide_hwif_t *hwif, unsigned long dmabase)
+{
+	ide_setup_dma(hwif, dmabase, 8);
+}
+
+extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
+
+static void __init init_setup_generic (struct pci_dev *dev, ide_pci_device_t *d)
+{
+	if ((d->vendor == PCI_VENDOR_ID_UMC) &&
+	    (d->device == PCI_DEVICE_ID_UMC_UM8886A) &&
+	    (!(PCI_FUNC(dev->devfn) & 1)))
+		return; /* UM8886A/BF pair */
+
+	if ((d->vendor == PCI_VENDOR_ID_OPTI) &&
+	    (d->device == PCI_DEVICE_ID_OPTI_82C558) &&
+	    (!(PCI_FUNC(dev->devfn) & 1)))
+		return;
+
+	ide_setup_pci_device(dev, d);
+}
+
+static void __init init_setup_unknown (struct pci_dev *dev, ide_pci_device_t *d)
+{
+	ide_setup_pci_device(dev, d);
+}
+
+int __init generic_scan_pcidev (struct pci_dev *dev)
+{
+	ide_pci_device_t *d;
+
+	for (d = generic_chipsets; d && d->vendor && d->device; ++d) {
+		if (((d->vendor == dev->vendor) &&
+		     (d->device == dev->device)) &&
+		    (d->init_setup)) {
+			d->init_setup(dev, d);
+			return 1;
+		}
+	}
+
+	if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
+		ide_pci_device_t *unknown = unknown_chipset;
+//		unknown->vendor = dev->vendor;
+//		unknown->device = dev->device;
+		init_setup_unknown(dev, unknown);
+		return 1;
+	}
+	return 0;
+}
+

drivers/ide/pci/generic.h

+#ifndef IDE_GENERIC_H
+#define IDE_GENERIC_H
+
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+static void init_setup_generic(struct pci_dev *, ide_pci_device_t *);
+static unsigned int init_chipset_generic(struct pci_dev *, const char *);
+static void init_hwif_generic(ide_hwif_t *);
+static void init_dma_generic(ide_hwif_t *, unsigned long);
+
+static ide_pci_device_t generic_chipsets[] __initdata = {
+	{
+		vendor:		PCI_VENDOR_ID_NS,
+		device:		PCI_DEVICE_ID_NS_87410,
+		name:		"NS87410",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	AUTODMA,
+		enablebits:	{{0x43,0x08,0x08}, {0x47,0x08,0x08}},
+		bootable:	ON_BOARD,
+		extra:		0,
+        },{
+		vendor:		PCI_VENDOR_ID_PCTECH,
+		device:		PCI_DEVICE_ID_PCTECH_SAMURAI_IDE,
+		name:		"SAMURAI",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	AUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_HOLTEK,
+		device:		PCI_DEVICE_ID_HOLTEK_6565,
+		name:		"HT6565",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	AUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_UMC,
+		device:		PCI_DEVICE_ID_UMC_UM8673F,
+		name:		"UM8673F",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	NODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_UMC,
+		device:		PCI_DEVICE_ID_UMC_UM8886A,
+		name:		"UM8886A",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	NODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_UMC,
+		device:		PCI_DEVICE_ID_UMC_UM8886BF,
+		name:		"UM8886BF",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	NODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_HINT,
+		device:		PCI_DEVICE_ID_HINT_VXPROII_IDE,
+		name:		"HINT_IDE",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	AUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_VIA,
+		device:		PCI_DEVICE_ID_VIA_82C561,
+		name:		"VIA_IDE",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	NOAUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		PCI_VENDOR_ID_OPTI,
+		device:		PCI_DEVICE_ID_OPTI_82C558,
+		name:		"OPTI621V",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	NOAUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		0,
+		device:		0,
+		channels:	0,
+		bootable:	EOL,
+	}
+};
+
+static ide_pci_device_t unknown_chipset[] __initdata = {
+	{
+		vendor:		0,
+		device:		0,
+		name:		"PCI_IDE",
+		init_setup:	init_setup_generic,
+		init_chipset:	init_chipset_generic,
+		init_iops:	NULL,
+		init_hwif:	init_hwif_generic,
+		init_dma:	init_dma_generic,
+		channels:	2,
+		autodma:	AUTODMA,
+		enablebits:	{{0x00,0x00,0x00}, {0x00,0x00,0x00}},
+		bootable:	ON_BOARD,
+		extra:		0,
+	},{
+		vendor:		0,
+		device:		0,
+		channels:	0,
+		bootable:	EOL,
+	}
+
+};
+
+#endif /* IDE_GENERIC_H */