1 files changed, 264 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c
new file mode 100644
index 000000000000..c2b47f2bdffd
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic7770_osm.c
@@ -0,0 +1,264 @@
+/*
+ * Linux driver attachment glue for aic7770 based controllers.
+ *
+ * Copyright (c) 2000-2003 Adaptec Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $
+ */
+
+#include "aic7xxx_osm.h"
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/device.h>
+#include <linux/eisa.h>
+
+#define EISA_MFCTR_CHAR0(ID) (char)(((ID>>26) & 0x1F) | '@')  /* Bits 26-30 */
+#define EISA_MFCTR_CHAR1(ID) (char)(((ID>>21) & 0x1F) | '@')  /* Bits 21-25 */
+#define EISA_MFCTR_CHAR2(ID) (char)(((ID>>16) & 0x1F) | '@')  /* Bits 16-20 */
+#define EISA_PRODUCT_ID(ID)  (short)((ID>>4)  & 0xFFF)        /* Bits  4-15 */
+#define EISA_REVISION_ID(ID) (uint8_t)(ID & 0x0F)             /* Bits  0-3  */
+
+static int aic7770_eisa_dev_probe(struct device *dev);
+static int aic7770_eisa_dev_remove(struct device *dev);
+static struct eisa_driver aic7770_driver = {
+	.driver = {
+		.name   = "aic7xxx",
+		.probe  = aic7770_eisa_dev_probe,
+		.remove = aic7770_eisa_dev_remove,
+	}
+};
+
+typedef  struct device *aic7770_dev_t;
+#else
+#define MINSLOT			1
+#define NUMSLOTS		16
+#define IDOFFSET		0x80
+
+typedef void *aic7770_dev_t;
+#endif
+
+static int aic7770_linux_config(struct aic7770_identity *entry,
+				aic7770_dev_t dev, u_int eisaBase);
+
+int
+ahc_linux_eisa_init(void)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+	struct eisa_device_id *eid;
+	struct aic7770_identity *id;
+	int i;
+
+	if (aic7xxx_probe_eisa_vl == 0)
+		return -ENODEV;
+
+	/*
+	 * Linux requires the EISA IDs to be specified in
+	 * the EISA ID string format.  Perform the conversion
+	 * and setup a table with a NUL terminal entry.
+	 */
+	aic7770_driver.id_table = malloc(sizeof(struct eisa_device_id) *
+					 (ahc_num_aic7770_devs + 1),
+					 M_DEVBUF, M_NOWAIT);
+	if (aic7770_driver.id_table == NULL)
+		return -ENOMEM;
+
+	for (eid = (struct eisa_device_id *)aic7770_driver.id_table,
+	     id = aic7770_ident_table, i = 0;
+	     i < ahc_num_aic7770_devs; eid++, id++, i++) {
+
+		sprintf(eid->sig, "%c%c%c%03X%01X",
+			EISA_MFCTR_CHAR0(id->full_id),
+			EISA_MFCTR_CHAR1(id->full_id),
+			EISA_MFCTR_CHAR2(id->full_id),
+			EISA_PRODUCT_ID(id->full_id),
+			EISA_REVISION_ID(id->full_id));
+		eid->driver_data = i;
+	}
+	eid->sig[0] = 0;
+
+	return eisa_driver_register(&aic7770_driver);
+#else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
+	struct aic7770_identity *entry;
+	u_int  slot;
+	u_int  eisaBase;
+	u_int  i;
+	int ret = -ENODEV;
+
+	if (aic7xxx_probe_eisa_vl == 0)
+		return ret;
+
+	eisaBase = 0x1000 + AHC_EISA_SLOT_OFFSET;
+	for (slot = 1; slot < NUMSLOTS; eisaBase+=0x1000, slot++) {
+		uint32_t eisa_id;
+		size_t	 id_size;
+
+		if (request_region(eisaBase, AHC_EISA_IOSIZE, "aic7xxx") == 0)
+			continue;
+
+		eisa_id = 0;
+		id_size = sizeof(eisa_id);
+		for (i = 0; i < 4; i++) {
+			/* VLcards require priming*/
+			outb(0x80 + i, eisaBase + IDOFFSET);
+			eisa_id |= inb(eisaBase + IDOFFSET + i)
+				   << ((id_size-i-1) * 8);
+		}
+		release_region(eisaBase, AHC_EISA_IOSIZE);
+		if (eisa_id & 0x80000000)
+			continue;  /* no EISA card in slot */
+
+		entry = aic7770_find_device(eisa_id);
+		if (entry != NULL) {
+			aic7770_linux_config(entry, NULL, eisaBase);
+			ret = 0;
+		}
+	}
+	return ret;
+#endif
+}
+
+void
+ahc_linux_eisa_exit(void)
+{
+	if(aic7xxx_probe_eisa_vl != 0 && aic7770_driver.id_table != NULL) {
+		eisa_driver_unregister(&aic7770_driver);
+		free(aic7770_driver.id_table, M_DEVBUF);
+	}
+}
+
+static int
+aic7770_linux_config(struct aic7770_identity *entry, aic7770_dev_t dev,
+		     u_int eisaBase)
+{
+	struct	ahc_softc *ahc;
+	char	buf[80];
+	char   *name;
+	int	error;
+
+	/*
+	 * Allocate a softc for this card and
+	 * set it up for attachment by our
+	 * common detect routine.
+	 */
+	sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
+	name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
+	if (name == NULL)
+		return (ENOMEM);
+	strcpy(name, buf);
+	ahc = ahc_alloc(&aic7xxx_driver_template, name);
+	if (ahc == NULL)
+		return (ENOMEM);
+	error = aic7770_config(ahc, entry, eisaBase);
+	if (error != 0) {
+		ahc->bsh.ioport = 0;
+		ahc_free(ahc);
+		return (error);
+	}
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+	dev->driver_data = (void *)ahc;
+	if (aic7xxx_detect_complete)
+		error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
+#endif
+	return (error);
+}
+
+int
+aic7770_map_registers(struct ahc_softc *ahc, u_int port)
+{
+	/*
+	 * Lock out other contenders for our i/o space.
+	 */
+	if (request_region(port, AHC_EISA_IOSIZE, "aic7xxx") == 0)
+		return (ENOMEM);
+	ahc->tag = BUS_SPACE_PIO;
+	ahc->bsh.ioport = port;
+	return (0);
+}
+
+int
+aic7770_map_int(struct ahc_softc *ahc, u_int irq)
+{
+	int error;
+	int shared;
+
+	shared = 0;
+	if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)
+		shared = SA_SHIRQ;
+
+	error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);
+	if (error == 0)
+		ahc->platform_data->irq = irq;
+	
+	return (-error);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+static int
+aic7770_eisa_dev_probe(struct device *dev)
+{
+	struct eisa_device *edev;
+
+	edev = to_eisa_device(dev);
+	return (aic7770_linux_config(aic7770_ident_table + edev->id.driver_data,
+				    dev, edev->base_addr+AHC_EISA_SLOT_OFFSET));
+}
+
+static int
+aic7770_eisa_dev_remove(struct device *dev)
+{
+	struct ahc_softc *ahc;
+	u_long l;
+
+	/*
+	 * We should be able to just perform
+	 * the free directly, but check our
+	 * list for extra sanity.
+	 */
+	ahc_list_lock(&l);
+	ahc = ahc_find_softc((struct ahc_softc *)dev->driver_data);
+	if (ahc != NULL) {
+		u_long s;
+
+		ahc_lock(ahc, &s);
+		ahc_intr_enable(ahc, FALSE);
+		ahc_unlock(ahc, &s);
+		ahc_free(ahc);
+	}
+	ahc_list_unlock(&l);
+
+	return (0);
+}
+#endif