/*
* 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"
#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;
static int aic7770_linux_config(struct aic7770_identity *entry,
aic7770_dev_t dev, u_int eisaBase);
int
ahc_linux_eisa_init(void)
{
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);
}
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);
}
dev->driver_data = (void *)ahc;
if (aic7xxx_detect_complete)
error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
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);
}
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);
}
