/* * Created 20 Oct 2004 by Mark Lord * * Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter * * Modeled after the 16-bit PCMCIA driver: ide-cs.c * * This is slightly peculiar, in that it is a PCI driver, * but is NOT an IDE PCI driver -- the IDE layer does not directly * support hot insertion/removal of PCI interfaces, so this driver * is unable to use the IDE PCI interfaces. Instead, it uses the * same interfaces as the ide-cs (PCMCIA) driver uses. * On the plus side, the driver is also smaller/simpler this way. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #include <linux/types.h> #include <linux/module.h> #include <linux/ide.h> #include <linux/init.h> #include <linux/pci.h> #include <asm/io.h> /* * No chip documentation has yet been found, * so these configuration values were pulled from * a running Win98 system using "debug". * This gives around 3MByte/second read performance, * which is about 2/3 of what the chip is capable of. * * There is also a 4KByte mmio region on the card, * but its purpose has yet to be reverse-engineered. */ static const u8 setup[] = { 0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00, 0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13, }; static const struct ide_port_ops delkin_cb_port_ops = { .quirkproc = ide_undecoded_slave, }; static int delkin_cb_init_chipset(struct pci_dev *dev) { unsigned long base = pci_resource_start(dev, 0); int i; outb(0x02, base + 0x1e); /* set nIEN to block interrupts */ inb(base + 0x17); /* read status to clear interrupts */ for (i = 0; i < sizeof(setup); ++i) { if (setup[i]) outb(setup[i], base + i); } return 0; } static const struct ide_port_info delkin_cb_port_info = { .port_ops = &delkin_cb_port_ops, .host_flags = IDE_HFLAG_IO_32BIT | IDE_HFLAG_UNMASK_IRQS | IDE_HFLAG_NO_DMA, .irq_flags = IRQF_SHARED, .init_chipset = delkin_cb_init_chipset, }; static int __devinit delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) { struct ide_host *host; unsigned long base; int rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; rc = pci_enable_device(dev); if (rc) { printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc); return rc; } rc = pci_request_regions(dev, "delkin_cb"); if (rc) { printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc); pci_disable_device(dev); return rc; } base = pci_resource_start(dev, 0); delkin_cb_init_chipset(dev); memset(&hw, 0, sizeof(hw)); ide_std_init_ports(&hw, base + 0x10, base + 0x1e); hw.irq = dev->irq; hw.dev = &dev->dev; hw.chipset = ide_pci; /* this enables IRQ sharing */ rc = ide_host_add(&delkin_cb_port_info, hws, &host); if (rc) goto out_disable; pci_set_drvdata(dev, host); return 0; out_disable: pci_release_regions(dev); pci_disable_device(dev); return rc; } static void delkin_cb_remove (struct pci_dev *dev) { struct ide_host *host = pci_get_drvdata(dev); ide_host_remove(host); pci_release_regions(dev); pci_disable_device(dev); } #ifdef CONFIG_PM static int delkin_cb_suspend(struct pci_dev *dev, pm_message_t state) { pci_save_state(dev); pci_disable_device(dev); pci_set_power_state(dev, pci_choose_state(dev, state)); return 0; } static int delkin_cb_resume(struct pci_dev *dev) { struct ide_host *host = pci_get_drvdata(dev); int rc; pci_set_power_state(dev, PCI_D0); rc = pci_enable_device(dev); if (rc) return rc; pci_restore_state(dev); pci_set_master(dev); if (host->init_chipset) host->init_chipset(dev); return 0; } #else #define delkin_cb_suspend NULL #define delkin_cb_resume NULL #endif static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = { { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { 0, }, }; MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl); static struct pci_driver delkin_cb_pci_driver = { .name = "Delkin-ASKA-Workbit Cardbus IDE", .id_table = delkin_cb_pci_tbl, .probe = delkin_cb_probe, .remove = delkin_cb_remove, .suspend = delkin_cb_suspend, .resume = delkin_cb_resume, }; static int __init delkin_cb_init(void) { return pci_register_driver(&delkin_cb_pci_driver); } static void __exit delkin_cb_exit(void) { pci_unregister_driver(&delkin_cb_pci_driver); } module_init(delkin_cb_init); module_exit(delkin_cb_exit); MODULE_AUTHOR("Mark Lord"); MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE"); MODULE_LICENSE("GPL");