| /* -*- mode: c; c-basic-offset: 8 -*- */ |
| |
| /* PARISC LASI driver for the 53c700 chip |
| * |
| * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com |
| **----------------------------------------------------------------------------- |
| ** |
| ** This program is free software; you can redistribute it and/or modify |
| ** it under the terms of the GNU General Public License as published by |
| ** the Free Software Foundation; either version 2 of the License, or |
| ** (at your option) any later version. |
| ** |
| ** This program is distributed in the hope that it will be useful, |
| ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ** GNU General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU General Public License |
| ** along with this program; if not, write to the Free Software |
| ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| ** |
| **----------------------------------------------------------------------------- |
| */ |
| |
| /* |
| * Many thanks to Richard Hirst <rhirst@linuxcare.com> for patiently |
| * debugging this driver on the parisc architecture and suggesting |
| * many improvements and bug fixes. |
| * |
| * Thanks also go to Linuxcare Inc. for providing several PARISC |
| * machines for me to debug the driver on. |
| */ |
| |
| #ifndef __hppa__ |
| #error "lasi700 only compiles on hppa architecture" |
| #endif |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/types.h> |
| #include <linux/stat.h> |
| #include <linux/mm.h> |
| #include <linux/blk.h> |
| #include <linux/sched.h> |
| #include <linux/version.h> |
| #include <linux/config.h> |
| #include <linux/ioport.h> |
| |
| #include <asm/page.h> |
| #include <asm/pgtable.h> |
| #include <asm/irq.h> |
| #include <asm/hardware.h> |
| #include <asm/delay.h> |
| #include <asm/gsc.h> |
| |
| #include <linux/module.h> |
| |
| #include "scsi.h" |
| #include "hosts.h" |
| #include "constants.h" |
| |
| #include "lasi700.h" |
| #include "53c700.h" |
| |
| #ifdef MODULE |
| |
| char *lasi700; /* command line from insmod */ |
| |
| MODULE_AUTHOR("James Bottomley"); |
| MODULE_DESCRIPTION("lasi700 SCSI Driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_PARM(lasi700, "s"); |
| |
| #endif |
| |
| #ifdef MODULE |
| #define ARG_SEP ' ' |
| #else |
| #define ARG_SEP ',' |
| #endif |
| |
| static unsigned long __initdata opt_base; |
| static int __initdata opt_irq; |
| |
| static int __init |
| param_setup(char *string) |
| { |
| char *pos = string, *next; |
| |
| while(pos != NULL && (next = strchr(pos, ':')) != NULL) { |
| int val = (int)simple_strtoul(++next, NULL, 0); |
| |
| if(!strncmp(pos, "addr:", 5)) |
| opt_base = val; |
| else if(!strncmp(pos, "irq:", 4)) |
| opt_irq = val; |
| |
| if((pos = strchr(pos, ARG_SEP)) != NULL) |
| pos++; |
| } |
| return 1; |
| } |
| |
| #ifndef MODULE |
| __setup("lasi700=", param_setup); |
| #endif |
| |
| static Scsi_Host_Template __initdata *host_tpnt = NULL; |
| static int __initdata host_count = 0; |
| static struct parisc_device_id lasi700_scsi_tbl[] = { |
| LASI700_ID_TABLE, |
| LASI710_ID_TABLE, |
| { 0 } |
| }; |
| |
| MODULE_DEVICE_TABLE(parisc, lasi700_scsi_tbl); |
| |
| static struct parisc_driver lasi700_driver = LASI700_DRIVER; |
| |
| static int __init |
| lasi700_detect(Scsi_Host_Template *tpnt) |
| { |
| host_tpnt = tpnt; |
| |
| #ifdef MODULE |
| if(lasi700) |
| param_setup(lasi700); |
| #endif |
| |
| register_parisc_driver(&lasi700_driver); |
| |
| return (host_count != 0); |
| } |
| |
| static int __init |
| lasi700_driver_callback(struct parisc_device *dev) |
| { |
| unsigned long base = dev->hpa + LASI_SCSI_CORE_OFFSET; |
| char *driver_name; |
| struct Scsi_Host *host; |
| struct NCR_700_Host_Parameters *hostdata = |
| kmalloc(sizeof(struct NCR_700_Host_Parameters), |
| GFP_KERNEL); |
| if(dev->id.sversion == LASI_700_SVERSION) { |
| driver_name = "lasi700"; |
| } else { |
| driver_name = "lasi710"; |
| } |
| if(hostdata == NULL) { |
| printk(KERN_ERR "%s: Failed to allocate host data\n", |
| driver_name); |
| return 1; |
| } |
| memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); |
| hostdata->base = base; |
| hostdata->differential = 0; |
| if(dev->id.sversion == LASI_700_SVERSION) { |
| hostdata->clock = LASI700_CLOCK; |
| hostdata->force_le_on_be = 1; |
| } else { |
| hostdata->clock = LASI710_CLOCK; |
| hostdata->force_le_on_be = 0; |
| hostdata->chip710 = 1; |
| hostdata->dmode_extra = DMODE_FC2; |
| } |
| hostdata->pci_dev = ccio_get_fake(dev); |
| if((host = NCR_700_detect(host_tpnt, hostdata)) == NULL) { |
| kfree(hostdata); |
| return 1; |
| } |
| host->irq = dev->irq; |
| if(request_irq(dev->irq, NCR_700_intr, SA_SHIRQ, driver_name, host)) { |
| printk(KERN_ERR "%s: irq problem, detaching\n", |
| driver_name); |
| scsi_unregister(host); |
| NCR_700_release(host); |
| return 1; |
| } |
| host_count++; |
| return 0; |
| } |
| |
| static int |
| lasi700_release(struct Scsi_Host *host) |
| { |
| struct D700_Host_Parameters *hostdata = |
| (struct D700_Host_Parameters *)host->hostdata[0]; |
| |
| NCR_700_release(host); |
| kfree(hostdata); |
| free_irq(host->irq, host); |
| unregister_parisc_driver(&lasi700_driver); |
| return 1; |
| } |
| |
| static Scsi_Host_Template driver_template = LASI700_SCSI; |
| |
| #include "scsi_module.c" |