patch-2.4.21 linux-2.4.21/drivers/ide/pci/adma100.c

• Lines: 81
• Date: 2003-06-13 07:51:33.000000000 -0700
• Orig file: linux-2.4.20/drivers/ide/pci/adma100.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/drivers/ide/pci/adma100.c linux-2.4.21/drivers/ide/pci/adma100.c
@@ -0,0 +1,80 @@
+/*
+ *  linux/drivers/ide/pci/adma100.c -- basic support for Pacific Digital ADMA-100 boards
+ *
+ *     Created 09 Apr 2002 by Mark Lord
+ *
+ *  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/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+#include "adma100.h"
+
+void __init init_hwif_adma100 (ide_hwif_t *hwif)
+{
+	unsigned long  phy_admctl = pci_resource_start(hwif->pci_dev, 4) + 0x80 + (hwif->channel * 0x20);
+	void *v_admctl;
+
+	hwif->autodma  = 0;		// not compatible with normal IDE DMA transfers
+	hwif->dma_base = 0;		// disable DMA completely
+	hwif->io_ports[IDE_CONTROL_OFFSET] += 4;	// chip needs offset of 6 instead of 2
+	v_admctl = ioremap_nocache(phy_admctl, 1024);	// map config regs, so we can turn on drive IRQs
+	*((unsigned short *)v_admctl) &= 3;		// enable aIEN; preserve PIO mode
+	iounmap(v_admctl);				// all done; unmap config regs
+	printk("ADMA100: initialized %s for basic PIO-only operation\n", hwif->name);
+}
+
+extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
+
+static int __devinit adma100_init_one (struct pci_dev *dev, const struct pci_device_id *id)
+{
+	ide_pci_device_t *d = &adma100_chipsets[id->driver_data];
+
+	if (dev->device != d->device)
+		BUG();
+	ide_setup_pci_device(dev, d);
+	MOD_INC_USE_COUNT;
+	return 0;
+}
+
+static struct pci_device_id adma100_pci_tbl[] __devinitdata = {
+	{ PCI_VENDOR_ID_PDC, PCI_DEVICE_ID_PDC_ADMA100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ 0, },
+};
+
+static struct pci_driver driver = {
+	.name		= "ADMA100 IDE",
+	.id_table	= adma100_pci_tbl,
+	.probe		= adma100_init_one,
+};
+
+static int adma100_ide_init (void)
+{
+	return ide_pci_register_driver(&driver);
+}
+
+static void adma100_ide_exit (void)
+{
+	ide_pci_unregister_driver(&driver);
+}
+
+module_init(adma100_ide_init);
+module_exit(adma100_ide_exit);
+
+MODULE_AUTHOR("Mark Lord");
+MODULE_DESCRIPTION("Basic PIO support for ADMA100 IDE");
+MODULE_LICENSE("GPL");
+
+EXPORT_NO_SYMBOLS;
+