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 000000000000..474f96a7c076
--- /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");