2 * Created 20 Oct 2004 by Mark Lord
4 * Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter
6 * Modeled after the 16-bit PCMCIA driver: ide-cs.c
8 * This is slightly peculiar, in that it is a PCI driver,
9 * but is NOT an IDE PCI driver -- the IDE layer does not directly
10 * support hot insertion/removal of PCI interfaces, so this driver
11 * is unable to use the IDE PCI interfaces. Instead, it uses the
12 * same interfaces as the ide-cs (PCMCIA) driver uses.
13 * On the plus side, the driver is also smaller/simpler this way.
15 * This file is subject to the terms and conditions of the GNU General Public
16 * License. See the file COPYING in the main directory of this archive for
20 #include <linux/types.h>
21 #include <linux/module.h>
22 #include <linux/hdreg.h>
23 #include <linux/ide.h>
24 #include <linux/init.h>
25 #include <linux/pci.h>
30 * No chip documentation has yet been found,
31 * so these configuration values were pulled from
32 * a running Win98 system using "debug".
33 * This gives around 3MByte/second read performance,
34 * which is about 2/3 of what the chip is capable of.
36 * There is also a 4KByte mmio region on the card,
37 * but its purpose has yet to be reverse-engineered.
39 static const u8 setup[] = {
40 0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00,
41 0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80,
42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
43 0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13,
47 delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
51 ide_hwif_t *hwif = NULL;
54 u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
56 rc = pci_enable_device(dev);
58 printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc);
61 rc = pci_request_regions(dev, "delkin_cb");
63 printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc);
64 pci_disable_device(dev);
67 base = pci_resource_start(dev, 0);
68 outb(0x02, base + 0x1e); /* set nIEN to block interrupts */
69 inb(base + 0x17); /* read status to clear interrupts */
70 for (i = 0; i < sizeof(setup); ++i) {
72 outb(setup[i], base + i);
74 pci_release_regions(dev); /* IDE layer handles regions itself */
76 memset(&hw, 0, sizeof(hw));
77 ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
79 hw.chipset = ide_pci; /* this enables IRQ sharing */
81 hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
90 ide_init_port_data(hwif, i);
92 ide_init_port_hw(hwif, &hw);
93 hwif->quirkproc = &ide_undecoded_slave;
97 ide_device_add(idx, NULL);
102 pci_set_drvdata(dev, hwif);
103 hwif->dev = &dev->dev;
104 drive = &hwif->drives[0];
105 if (drive->present) {
112 printk(KERN_ERR "delkin_cb: no IDE devices found\n");
113 pci_disable_device(dev);
118 delkin_cb_remove (struct pci_dev *dev)
120 ide_hwif_t *hwif = pci_get_drvdata(dev);
123 ide_unregister(hwif->index);
125 pci_disable_device(dev);
128 static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = {
129 { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
130 { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
133 MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl);
135 static struct pci_driver driver = {
136 .name = "Delkin-ASKA-Workbit Cardbus IDE",
137 .id_table = delkin_cb_pci_tbl,
138 .probe = delkin_cb_probe,
139 .remove = delkin_cb_remove,
143 delkin_cb_init (void)
145 return pci_register_driver(&driver);
149 delkin_cb_exit (void)
151 pci_unregister_driver(&driver);
154 module_init(delkin_cb_init);
155 module_exit(delkin_cb_exit);
157 MODULE_AUTHOR("Mark Lord");
158 MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE");
159 MODULE_LICENSE("GPL");