/* * ata_generic.c - Generic PATA/SATA controller driver. * Copyright 2005 Red Hat Inc, all rights reserved. * * Elements from ide/pci/generic.c * Copyright (C) 2001-2002 Andre Hedrick <[email protected]> * Portions (C) Copyright 2002 Red Hat Inc <[email protected]> * * May be copied or modified under the terms of the GNU General Public License * * Driver for PCI IDE interfaces implementing the standard bus mastering * interface functionality. This assumes the BIOS did the drive set up and * tuning for us. By default we do not grab all IDE class devices as they * may have other drivers or need fixups to avoid problems. Instead we keep * a default list of stuff without documentation/driver that appears to * work. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <scsi/scsi_host.h> #include <linux/libata.h> #define DRV_NAME … #define DRV_VERSION … /* * A generic parallel ATA driver using libata */ enum { … }; /** * generic_set_mode - mode setting * @link: link to set up * @unused: returned device on error * * Use a non standard set_mode function. We don't want to be tuned. * The BIOS configured everything. Our job is not to fiddle. We * read the dma enabled bits from the PCI configuration of the device * and respect them. */ static int generic_set_mode(struct ata_link *link, struct ata_device **unused) { … } static const struct scsi_host_template generic_sht = …; static struct ata_port_operations generic_port_ops = …; static int all_generic_ide; /* Set to claim all devices */ /** * is_intel_ider - identify intel IDE-R devices * @dev: PCI device * * Distinguish Intel IDE-R controller devices from other Intel IDE * devices. IDE-R devices have no timing registers and are in * most respects virtual. They should be driven by the ata_generic * driver. * * IDE-R devices have PCI offset 0xF8.L as zero, later Intel ATA has * it non zero. All Intel ATA has 0x40 writable (timing), but it is * not writable on IDE-R devices (this is guaranteed). */ static int is_intel_ider(struct pci_dev *dev) { … } /** * ata_generic_init_one - attach generic IDE * @dev: PCI device found * @id: match entry * * Called each time a matching IDE interface is found. We check if the * interface is one we wish to claim and if so we perform any chip * specific hacks then let the ATA layer do the heavy lifting. */ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id *id) { … } static struct pci_device_id ata_generic[] = …; static struct pci_driver ata_generic_pci_driver = …; module_pci_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_DEVICE_TABLE(pci, ata_generic); MODULE_VERSION(…); module_param(all_generic_ide, int, 0);
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