11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* -*- mode: c; c-basic-offset: 8 -*- */ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* NCR Dual 700 MCA SCSI Driver 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds**----------------------------------------------------------------------------- 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** This program is free software; you can redistribute it and/or modify 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** it under the terms of the GNU General Public License as published by 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** the Free Software Foundation; either version 2 of the License, or 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** (at your option) any later version. 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** This program is distributed in the hope that it will be useful, 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** but WITHOUT ANY WARRANTY; without even the implied warranty of 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** GNU General Public License for more details. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** You should have received a copy of the GNU General Public License 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** along with this program; if not, write to the Free Software 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds**----------------------------------------------------------------------------- 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Notes: 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Most of the work is done in the chip specific module, 53c700.o 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * TODO List: 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. Extract the SCSI ID from the voyager CMOS table (necessary to 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * support multi-host environments. 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * */ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* CHANGELOG 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 2.2 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Added mca_set_adapter_name(). 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 2.1 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Modularise the driver into a Board piece (this file) and a chip 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * piece 53c700.[ch] and 53c700.scr, added module options. You can 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * now specify the scsi id by the parameters 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NCR_D700=slot:<n> [siop:<n>] id:<n> .... 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * They need to be comma separated if compiled into the kernel 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 2.0 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initial implementation of TCQ (Tag Command Queueing). TCQ is full 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * featured and uses the clock algorithm to keep track of outstanding 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tags and guard against individual tag starvation. Also fixed a bug 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in all of the 1.x versions where the D700_data_residue() function 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * was returning results off by 32 bytes (and thus causing the same 32 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bytes to be written twice corrupting the data block). It turns out 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the 53c700 only has a 6 bit DBC and DFIFO registers not 7 bit ones 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * like the 53c710 (The 710 is the only data manual still available, 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which I'd been using to program the 700). 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.2 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Much improved message handling engine 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.1 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Add code to handle selection reasonably correctly. By the time we 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get the selection interrupt, we've already responded, but drop off the 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus and hope the selector will go away. 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.0: 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initial release. Fully functional except for procfs and tag 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command queueing. Has only been tested on cards with 53c700-66 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chips and only single ended. Features are 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. Synchronous data transfers to offset 8 (limit of 700-66) and 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 100ns (10MHz) limit of SCSI-2 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. Disconnection and reselection 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Testing: 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * I've only really tested this with the 700-66 chip, but have done 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * soak tests in multi-device environments to verify that 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disconnections and reselections are being processed correctly. 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * */ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NCR_D700_VERSION "2.2" 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkdev.h> 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mca.h> 1005a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_spi.h> 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "53c700.h" 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "NCR_D700.h" 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *NCR_D700; /* command line from insmod */ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("James Bottomley"); 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("NCR Dual700 SCSI Driver"); 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(NCR_D700, charp, 0); 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1173bb056eb1df236f3344426860e584a8981486334James Bottomleystatic __u8 __devinitdata id_array[2*(MCA_MAX_SLOT_NR + 1)] = 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { [0 ... 2*(MCA_MAX_SLOT_NR + 1)-1] = 7 }; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARG_SEP ' ' 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARG_SEP ',' 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsparam_setup(char *string) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *pos = string, *next; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int slot = -1, siop = -1; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while(pos != NULL && (next = strchr(pos, ':')) != NULL) { 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val = (int)simple_strtoul(++next, NULL, 0); 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(!strncmp(pos, "slot:", 5)) 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot = val; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if(!strncmp(pos, "siop:", 5)) 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds siop = val; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if(!strncmp(pos, "id:", 3)) { 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(slot == -1) { 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "NCR D700: Must specify slot for id parameter\n"); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if(slot > MCA_MAX_SLOT_NR) { 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "NCR D700: Illegal slot %d for id %d\n", slot, val); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(siop != 0 && siop != 1) { 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds id_array[slot*2] = val; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds id_array[slot*2 + 1] =val; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds id_array[slot*2 + siop] = val; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if((pos = strchr(pos, ARG_SEP)) != NULL) 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos++; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Host template. The 53c700 routine NCR_700_detect will 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fill in all of the missing routines */ 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct scsi_host_template NCR_D700_driver_template = { 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .module = THIS_MODULE, 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "NCR Dual 700 MCA", 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .proc_name = "NCR_D700", 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .this_id = 7, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* We needs this helper because we have two hosts per struct device */ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct NCR_D700_private { 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *hosts[2]; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char name[30]; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char pad; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1763bb056eb1df236f3344426860e584a8981486334James Bottomleystatic int __devinit 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsNCR_D700_probe_one(struct NCR_D700_private *p, int siop, int irq, 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int slot, u32 region, int differential) 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_700_Host_Parameters *hostdata; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *host; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184dd00cc486ab1c17049a535413d1751ef3482141cYoann Padioleau hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hostdata) { 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "NCR D700: SIOP%d: Failed to allocate host" 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "data, detatching\n", siop); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!request_region(region, 64, "NCR_D700")) { 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "NCR D700: Failed to reserve IO region 0x%x\n", 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds region); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = -ENODEV; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto region_failed; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Fill in the three required pieces of hostdata */ 19956fece20086ebe32bce2c0d74ceadd516b56baae<jejb@mulgrave.(none)> hostdata->base = ioport_map(region, 64); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->differential = (((1<<siop) & differential) != 0); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->clock = NCR_D700_CLOCK_MHZ; 202a5364c5a311f73eade88f37bf5b614797ce30ec9Mark Haverkamp hostdata->burst_length = 8; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* and register the siop */ 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host = NCR_700_detect(&NCR_D700_driver_template, hostdata, p->dev); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!host) { 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = -ENOMEM; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto detect_failed; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p->hosts[siop] = host; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: read this from SUS */ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host->this_id = id_array[slot * 2 + siop]; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host->irq = irq; 21556fece20086ebe32bce2c0d74ceadd516b56baae<jejb@mulgrave.(none)> host->base = region; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_scan_host(host); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds detect_failed: 2218800727ae8a20146981a9531ac833cb889666247Adrian Bunk release_region(region, 64); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds region_failed: 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hostdata); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2285a2537959fa8781012e8c286fc1614e0f6991327Zhenwen Xustatic irqreturn_t 2297d12e780e003f93433d49ce78cfedf4b4c52adc5David HowellsNCR_D700_intr(int irq, void *data) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_D700_private *p = (struct NCR_D700_private *)data; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, found = 0; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (p->hosts[i] && 2367d12e780e003f93433d49ce78cfedf4b4c52adc5David Howells NCR_700_intr(irq, p->hosts[i]) == IRQ_HANDLED) 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds found++; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return found ? IRQ_HANDLED : IRQ_NONE; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Detect a D700 card. Note, because of the setup --- the chips are 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * essentially connectecd to the MCA bus independently, it is easier 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to set them up as two separate host adapters, rather than one 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * adapter with two channels */ 2463bb056eb1df236f3344426860e584a8981486334James Bottomleystatic int __devinit 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsNCR_D700_probe(struct device *dev) 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_D700_private *p; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int differential; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int banner = 1; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct mca_device *mca_dev = to_mca_device(dev); 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int slot = mca_dev->slot; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int found = 0; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int irq, i; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pos3j, pos3k, pos3a, pos3b, pos4; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 base_addr, offset_addr; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* enable board interrupt */ 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos4 = mca_device_read_pos(mca_dev, 4); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos4 |= 0x4; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_write_pos(mca_dev, 4, pos4); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_write_pos(mca_dev, 6, 9); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos3j = mca_device_read_pos(mca_dev, 3); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_write_pos(mca_dev, 6, 10); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos3k = mca_device_read_pos(mca_dev, 3); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_write_pos(mca_dev, 6, 0); 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos3a = mca_device_read_pos(mca_dev, 3); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_write_pos(mca_dev, 6, 1); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos3b = mca_device_read_pos(mca_dev, 3); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base_addr = ((pos3j << 8) | pos3k) & 0xfffffff0; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset_addr = ((pos3a << 8) | pos3b) & 0xffffff70; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds irq = (pos4 & 0x3) + 11; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(irq >= 13) 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds irq++; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(banner) { 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_NOTICE "NCR D700: Driver Version " NCR_D700_VERSION "\n" 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "NCR D700: Copyright (c) 2001 by James.Bottomley@HansenPartnership.com\n" 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "NCR D700:\n"); 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds banner = 0; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* now do the bus related transforms */ 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds irq = mca_device_transform_irq(mca_dev, irq); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base_addr = mca_device_transform_ioport(mca_dev, base_addr); 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset_addr = mca_device_transform_ioport(mca_dev, offset_addr); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_NOTICE "NCR D700: found in slot %d irq = %d I/O base = 0x%x\n", slot, irq, offset_addr); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /*outb(BOARD_RESET, base_addr);*/ 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* clear any pending interrupts */ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)inb(base_addr + 0x08); 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get modctl, used later for setting diff bits */ 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(differential = (inb(base_addr + 0x08) >> 6)) { 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x00: 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* only SIOP1 differential */ 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential = 0x02; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x01: 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Both SIOPs differential */ 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential = 0x03; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x03: 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No SIOPs differential */ 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential = 0x00; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "D700: UNEXPECTED DIFFERENTIAL RESULT 0x%02x\n", 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential); 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential = 0x00; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 317bbfbbbc1182f8b44c8cc4c99f4a3f3a512149022Mariusz Kozlowski p = kzalloc(sizeof(*p), GFP_KERNEL); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p) 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 320bbfbbbc1182f8b44c8cc4c99f4a3f3a512149022Mariusz Kozlowski 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p->dev = dev; 32271610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers snprintf(p->name, sizeof(p->name), "D700(%s)", dev_name(dev)); 3231d6f359a2e06296418481239f8054a878f36e819Thomas Gleixner if (request_irq(irq, NCR_D700_intr, IRQF_SHARED, p->name, p)) { 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "D700: request_irq failed\n"); 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(p); 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* plumb in both 700 chips */ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3323bb056eb1df236f3344426860e584a8981486334James Bottomley if ((err = NCR_D700_probe_one(p, i, irq, slot, 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset_addr + (0x80 * i), 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds differential)) != 0) 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("D700: SIOP%d: probe failed, error = %d\n", 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i, err); 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds found++; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!found) { 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(p); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_set_claim(mca_dev, 1); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_device_set_name(mca_dev, "NCR_D700"); 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_set_drvdata(dev, p); 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3523bb056eb1df236f3344426860e584a8981486334James Bottomleystatic void __devexit 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsNCR_D700_remove_one(struct Scsi_Host *host) 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_remove_host(host); 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR_700_release(host); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree((struct NCR_700_Host_Parameters *)host->hostdata[0]); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(host->irq, host); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(host->base, 64); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3623bb056eb1df236f3344426860e584a8981486334James Bottomleystatic int __devexit 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsNCR_D700_remove(struct device *dev) 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_D700_private *p = dev_get_drvdata(dev); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR_D700_remove_one(p->hosts[i]); 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(p); 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic short NCR_D700_id_table[] = { NCR_D700_MCA_ID, 0 }; 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct mca_driver NCR_D700_driver = { 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = NCR_D700_id_table, 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .driver = { 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "NCR_D700", 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .bus = &mca_bus_type, 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = NCR_D700_probe, 3833bb056eb1df236f3344426860e584a8981486334James Bottomley .remove = __devexit_p(NCR_D700_remove), 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }, 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init NCR_D700_init(void) 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (NCR_D700) 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds param_setup(NCR_D700); 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mca_register_driver(&NCR_D700_driver); 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit NCR_D700_exit(void) 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mca_unregister_driver(&NCR_D700_driver); 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(NCR_D700_init); 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(NCR_D700_exit); 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("NCR_D700=", param_setup); 406