ide: drivers/ide/generic.c -> drivers/ide/ide-pci-generic.c

Suggested-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 193 insertions, 0 deletions

diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
new file mode 100644
index 00000000000..474f96a7c07
--- /dev/null
+++ b/drivers/ide/ide-pci-generic.c
@@ -0,0 +1,193 @@
+/*
+ *  Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
+ *  Portions (C) Copyright 2002  Red Hat Inc <alan@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#define DRV_NAME "ide_pci_generic"
+
+static int ide_generic_all;		/* Set to claim all devices */
+
+module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
+MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
+
+#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
+
+#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
+	{ \
+		.name		= DRV_NAME, \
+		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
+				  extra_flags, \
+		.swdma_mask	= ATA_SWDMA2, \
+		.mwdma_mask	= ATA_MWDMA2, \
+		.udma_mask	= ATA_UDMA6, \
+	}
+
+static const struct ide_port_info generic_chipsets[] __devinitdata = {
+	/*  0: Unknown */
+	DECLARE_GENERIC_PCI_DEV(0),
+
+	{	/* 1: NS87410 */
+		.name		= DRV_NAME,
+		.enablebits	= { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
+		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA,
+		.swdma_mask	= ATA_SWDMA2,
+		.mwdma_mask	= ATA_MWDMA2,
+		.udma_mask	= ATA_UDMA6,
+	},
+
+	/*  2: SAMURAI / HT6565 / HINT_IDE */
+	DECLARE_GENERIC_PCI_DEV(0),
+	/*  3: UM8673F / UM8886A / UM8886BF */
+	DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC),
+	/*  4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
+	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
+
+	{	/* 5: VIA8237SATA */
+		.name		= DRV_NAME,
+		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
+				  IDE_HFLAG_OFF_BOARD,
+		.swdma_mask	= ATA_SWDMA2,
+		.mwdma_mask	= ATA_MWDMA2,
+		.udma_mask	= ATA_UDMA6,
+	},
+
+	{	/* 6: Revolution */
+		.name		= DRV_NAME,
+		.host_flags	= IDE_HFLAG_CLEAR_SIMPLEX |
+				  IDE_HFLAG_TRUST_BIOS_FOR_DMA |
+				  IDE_HFLAG_OFF_BOARD,
+		.swdma_mask	= ATA_SWDMA2,
+		.mwdma_mask	= ATA_MWDMA2,
+		.udma_mask	= ATA_UDMA6,
+	}
+};
+
+/**
+ *	generic_init_one	-	called when a PIIX is found
+ *	@dev: the generic device
+ *	@id: the matching pci id
+ *
+ *	Called when the PCI registration layer (or the IDE initialization)
+ *	finds a device matching our IDE device tables.
+ */
+
+static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
+	int ret = -ENODEV;
+
+	/* Don't use the generic entry unless instructed to do so */
+	if (id->driver_data == 0 && ide_generic_all == 0)
+			goto out;
+
+	switch (dev->vendor) {
+	case PCI_VENDOR_ID_UMC:
+		if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
+				!(PCI_FUNC(dev->devfn) & 1))
+			goto out; /* UM8886A/BF pair */
+		break;
+	case PCI_VENDOR_ID_OPTI:
+		if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
+				!(PCI_FUNC(dev->devfn) & 1))
+			goto out;
+		break;
+	case PCI_VENDOR_ID_JMICRON:
+		if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
+				PCI_FUNC(dev->devfn) != 1)
+			goto out;
+		break;
+	case PCI_VENDOR_ID_NS:
+		if (dev->device == PCI_DEVICE_ID_NS_87410 &&
+				(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
+			goto out;
+		break;
+	}
+
+	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
+		u16 command;
+		pci_read_config_word(dev, PCI_COMMAND, &command);
+		if (!(command & PCI_COMMAND_IO)) {
+			printk(KERN_INFO "%s %s: skipping disabled "
+				"controller\n", d->name, pci_name(dev));
+			goto out;
+		}
+	}
+	ret = ide_pci_init_one(dev, d, NULL);
+out:
+	return ret;
+}
+
+static const struct pci_device_id generic_pci_tbl[] = {
+	{ PCI_VDEVICE(NS,	PCI_DEVICE_ID_NS_87410),		 1 },
+	{ PCI_VDEVICE(PCTECH,	PCI_DEVICE_ID_PCTECH_SAMURAI_IDE),	 2 },
+	{ PCI_VDEVICE(HOLTEK,	PCI_DEVICE_ID_HOLTEK_6565),		 2 },
+	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8673F),		 3 },
+	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886A),		 3 },
+	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886BF),		 3 },
+	{ PCI_VDEVICE(HINT,	PCI_DEVICE_ID_HINT_VXPROII_IDE),	 2 },
+	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_82C561),		 4 },
+	{ PCI_VDEVICE(OPTI,	PCI_DEVICE_ID_OPTI_82C558),		 4 },
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_8237_SATA),		 5 },
+#endif
+	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO),		 4 },
+	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),	 4 },
+	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),	 4 },
+	{ PCI_VDEVICE(NETCELL,	PCI_DEVICE_ID_REVOLUTION),		 6 },
+	/*
+	 * Must come last.  If you add entries adjust
+	 * this table and generic_chipsets[] appropriately.
+	 */
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
+	{ 0, },
+};
+MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
+
+static struct pci_driver generic_pci_driver = {
+	.name		= "PCI_IDE",
+	.id_table	= generic_pci_tbl,
+	.probe		= generic_init_one,
+	.remove		= ide_pci_remove,
+	.suspend	= ide_pci_suspend,
+	.resume		= ide_pci_resume,
+};
+
+static int __init generic_ide_init(void)
+{
+	return ide_pci_register_driver(&generic_pci_driver);
+}
+
+static void __exit generic_ide_exit(void)
+{
+	pci_unregister_driver(&generic_pci_driver);
+}
+
+module_init(generic_ide_init);
+module_exit(generic_ide_exit);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
+MODULE_LICENSE("GPL");