11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Generic Macintosh NCR5380 driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright 1998, Michael Schmitz <mschmitz@lbl.gov> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * derived in part from: 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Generic Generic NCR5380 driver 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright 1995, Russell King 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ALPHA RELEASE 1. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For more information, please consult 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NCR 5380 Family 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI Protocol Controller 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Databook 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NCR Microelectronics 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1635 Aeroplaza Drive 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Colorado Springs, CO 80916 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1+ (719) 578-3400 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1+ (800) 334-5454 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $Log: mac_NCR5380.c,v $ 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/stddef.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ctype.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkdev.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/macintosh.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/macints.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/mac_via.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi.h" 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "mac_scsi.h" 54e744fdea546abf7a794898a99a26f85c63a83648Boaz Harrosh 55e744fdea546abf7a794898a99a26f85c63a83648Boaz Harrosh/* These control the behaviour of the generic 5380 core */ 56e744fdea546abf7a794898a99a26f85c63a83648Boaz Harrosh#define AUTOSENSE 57e744fdea546abf7a794898a99a26f85c63a83648Boaz Harrosh#define PSEUDO_DMA 58e744fdea546abf7a794898a99a26f85c63a83648Boaz Harrosh 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "NCR5380.h" 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NDEBUG (NDEBUG_INTR | NDEBUG_PSEUDO_DMA | NDEBUG_ARBITRATION | NDEBUG_SELECTION | NDEBUG_RESELECTION) 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NDEBUG (NDEBUG_ABORT) 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RESET_BOOT 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRIVER_SETUP 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void via_scsi_clear(void); 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef RESET_BOOT 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void mac_scsi_reset_boot(struct Scsi_Host *instance); 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_called = 0; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_can_queue = -1; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_cmd_per_lun = -1; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_sg_tablesize = -1; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_use_pdma = -1; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SUPPORT_TAGS 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_use_tagged_queuing = -1; 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_hostid = -1; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Time (in jiffies) to wait after a reset; the SCSI standard calls for 250ms, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we usually do 0.5s to be on the safe side. But Toshiba CD-ROMs once more 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * need ten times the standard value... */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TOSHIBA_DELAY 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef TOSHIBA_DELAY 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AFTER_RESET_DELAY (5*HZ/2) 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AFTER_RESET_DELAY (HZ/2) 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic volatile unsigned char *mac_scsi_regp = NULL; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic volatile unsigned char *mac_scsi_drq = NULL; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic volatile unsigned char *mac_scsi_nodrq = NULL; 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NCR 5380 register access functions 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if 0 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Debug versions */ 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTRL(p,v) (*ctrl = (v)) 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char macscsi_read(struct Scsi_Host *instance, int reg) 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int iobase = instance->io_port; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CTRL(iobase, 0); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = in_8(iobase + (reg<<4)); 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CTRL(iobase, 0x40); 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i; 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void macscsi_write(struct Scsi_Host *instance, int reg, int value) 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int iobase = instance->io_port; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CTRL(iobase, 0); 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds out_8(iobase + (reg<<4), value); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CTRL(iobase, 0x40); 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fast versions */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline__ char macscsi_read(struct Scsi_Host *instance, int reg) 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return in_8(instance->io_port + (reg<<4)); 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __inline__ void macscsi_write(struct Scsi_Host *instance, int reg, int value) 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds out_8(instance->io_port + (reg<<4), value); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function : mac_scsi_setup(char *str) 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Purpose : booter command line initialization of the overrides array, 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Inputs : str - comma delimited list of options 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init mac_scsi_setup(char *str) { 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef DRIVER_SETUP 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ints[7]; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)get_options( str, ARRAY_SIZE(ints), ints); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_called++ || ints[0] < 1 || ints[0] > 6) { 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "scsi: <mac5380>" 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " Usage: mac5380=<can_queue>[,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>,<use_pdma>]\n"); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ALERT "scsi: <mac5380> Bad Penguin parameters?\n"); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] >= 1) { 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[1] > 0) 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* no limits on this, just > 0 */ 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_can_queue = ints[1]; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] >= 2) { 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[2] > 0) 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_cmd_per_lun = ints[2]; 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] >= 3) { 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[3] >= 0) { 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_sg_tablesize = ints[3]; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Must be <= SG_ALL (255) */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_sg_tablesize > SG_ALL) 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_sg_tablesize = SG_ALL; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] >= 4) { 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Must be between 0 and 7 */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[4] >= 0 && ints[4] <= 7) 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_hostid = ints[4]; 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (ints[4] > 7) 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "mac_scsi_setup: invalid host ID %d !\n", ints[4] ); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SUPPORT_TAGS 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] >= 5) { 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[5] >= 0) 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_use_tagged_queuing = !!ints[5]; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] == 6) { 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[6] >= 0) 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_use_pdma = ints[6]; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[0] == 5) { 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ints[5] >= 0) 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_use_pdma = ints[5]; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* SUPPORT_TAGS */ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* DRIVER_SETUP */ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("mac5380=", mac_scsi_setup); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 217d0be4a7d29ad0bd3ce2209dd9e46d410b632db59Christoph Hellwig * Function : int macscsi_detect(struct scsi_host_template * tpnt) 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Purpose : initializes mac NCR5380 driver based on the 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command line / compile time port and irq definitions. 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Inputs : tpnt - template for this SCSI adapter. 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns : 1 if a host adapter was found, 0 if not. 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22870c26cf3277ce93af74523894700ec20cf7cf6aaGeert Uytterhoevenint __init macscsi_detect(struct scsi_host_template * tpnt) 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int called = 0; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flags = 0; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *instance; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MACH_IS_MAC || called) 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return( 0 ); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (macintosh_config->scsi_type != MAC_SCSI_OLD) 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return( 0 ); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* setup variables */ 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tpnt->can_queue = 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tpnt->cmd_per_lun = 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tpnt->sg_tablesize = 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_hostid >= 0) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tpnt->this_id = setup_hostid; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* use 7 as default */ 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tpnt->this_id = 7; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SUPPORT_TAGS 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_use_tagged_queuing < 0) 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_use_tagged_queuing = USE_TAGGED_QUEUING; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Once we support multiple 5380s (e.g. DuoDock) we'll do 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds something different here */ 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata)); 2635db5c5052d9ec39e808386c36fa3c873d5fb0171Geert Uytterhoeven 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (macintosh_config->ident == MAC_MODEL_IIFX) { 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_regp = via1+0x8000; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_drq = via1+0xE000; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_nodrq = via1+0xC000; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The IIFX should be able to do true DMA, but pseudo-dma doesn't work */ 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flags = FLAG_NO_PSEUDO_DMA; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_regp = via1+0x10000; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_drq = via1+0x6000; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_nodrq = via1+0x12000; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! setup_use_pdma) 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flags = FLAG_NO_PSEUDO_DMA; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->io_port = (unsigned long) mac_scsi_regp; 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->irq = IRQ_MAC_SCSI; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef RESET_BOOT 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mac_scsi_reset_boot(instance); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_init(instance, flags); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->n_io_port = 255; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (instance->irq != SCSI_IRQ_NONE) 293dddaaf793d73f1e3dc931b2040f1578b1bdf0eceGeert Uytterhoeven if (request_irq(instance->irq, NCR5380_intr, 0, "ncr5380", instance)) { 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "scsi%d: IRQ%d not free, interrupts disabled\n", 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->host_no, instance->irq); 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->irq = SCSI_IRQ_NONE; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "scsi%d: generic 5380 at port %lX irq", instance->host_no, instance->io_port); 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (instance->irq == SCSI_IRQ_NONE) 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "s disabled"); 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO " %d", instance->irq); 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO " options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds instance->can_queue, instance->cmd_per_lun, MACSCSI_PUBLIC_RELEASE); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "\nscsi%d:", instance->host_no); 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_print_options(instance); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds called = 1; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint macscsi_release (struct Scsi_Host *shpnt) 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (shpnt->irq != SCSI_IRQ_NONE) 3161e641664301744f0d381de43ae1e12343e60b479Jeff Garzik free_irq(shpnt->irq, shpnt); 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_exit(shpnt); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef RESET_BOOT 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Our 'bus reset on boot' function 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void mac_scsi_reset_boot(struct Scsi_Host *instance) 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long end; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_local_declare(); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_setup(instance); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do a SCSI reset to clean up the bus during initialization. No messing 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * with the queues, interrupts, or locks necessary here. 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "Macintosh SCSI: resetting the SCSI bus..." ); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get in phase */ 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_write( TARGET_COMMAND_REG, 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PHASE_SR_TO_TCR( NCR5380_read(STATUS_REG) )); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* assert RST */ 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_write( INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_RST ); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The min. reset hold time is 25us, so 40us should be enough */ 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds udelay( 50 ); 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* reset RST and interrupt */ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_write( INITIATOR_COMMAND_REG, ICR_BASE ); 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_read( RESET_PARITY_INTERRUPT_REG ); 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for( end = jiffies + AFTER_RESET_DELAY; time_before(jiffies, end); ) 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds barrier(); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO " done\n" ); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsconst char * macscsi_info (struct Scsi_Host *spnt) { 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ""; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds Pseudo-DMA: (Ove Edlund) 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds The code attempts to catch bus errors that occur if one for example 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "trips over the cable". 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds XXX: Since bus errors in the PDMA routines never happen on my 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds computer, the bus error code is untested. 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds If the code works as intended, a bus error results in Pseudo-DMA 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds beeing disabled, meaning that the driver switches to slow handshake. 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds If bus errors are NOT extremely rare, this has to be changed. 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CP_IO_TO_MEM(s,d,len) \ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__asm__ __volatile__ \ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (" cmp.w #4,%2\n" \ 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bls 8f\n" \ 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %1,%%d0\n" \ 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " neg.b %%d0\n" \ 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #3,%%d0\n" \ 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " sub.w %%d0,%2\n" \ 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 2f\n" \ 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 1: move.b (%0),(%1)+\n" \ 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 2: dbf %%d0,1b\n" \ 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %2,%%d0\n" \ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " lsr.w #5,%%d0\n" \ 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 4f\n" \ 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 3: move.l (%0),(%1)+\n" \ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "31: move.l (%0),(%1)+\n" \ 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "32: move.l (%0),(%1)+\n" \ 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "33: move.l (%0),(%1)+\n" \ 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "34: move.l (%0),(%1)+\n" \ 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "35: move.l (%0),(%1)+\n" \ 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "36: move.l (%0),(%1)+\n" \ 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "37: move.l (%0),(%1)+\n" \ 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 4: dbf %%d0,3b\n" \ 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %2,%%d0\n" \ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " lsr.w #2,%%d0\n" \ 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #7,%%d0\n" \ 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 6f\n" \ 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 5: move.l (%0),(%1)+\n" \ 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 6: dbf %%d0,5b\n" \ 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #3,%2\n" \ 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 8f\n" \ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 7: move.b (%0),(%1)+\n" \ 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 8: dbf %2,7b\n" \ 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " moveq.l #0, %2\n" \ 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 9: \n" \ 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".section .fixup,\"ax\"\n" \ 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .even\n" \ 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "90: moveq.l #1, %2\n" \ 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " jra 9b\n" \ 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".previous\n" \ 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".section __ex_table,\"a\"\n" \ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .align 4\n" \ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 1b,90b\n" \ 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 3b,90b\n" \ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 31b,90b\n" \ 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 32b,90b\n" \ 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 33b,90b\n" \ 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 34b,90b\n" \ 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 35b,90b\n" \ 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 36b,90b\n" \ 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 37b,90b\n" \ 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 5b,90b\n" \ 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 7b,90b\n" \ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".previous" \ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "=a"(s), "=a"(d), "=d"(len) \ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "0"(s), "1"(d), "2"(len) \ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "d0") 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int macscsi_pread (struct Scsi_Host *instance, 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *dst, int len) 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *d; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile unsigned char *s; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_local_declare(); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_setup(instance); 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s = mac_scsi_drq+0x60; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds d = dst; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* These conditions are derived from MacOS */ 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && !(NCR5380_read(STATUS_REG) & SR_REQ)) 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) { 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "Error in macscsi_pread\n"); 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CP_IO_TO_MEM(s, d, len); 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len != 0) { 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_NOTICE "Bus error in macscsi_pread\n"); 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CP_MEM_TO_IO(s,d,len) \ 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__asm__ __volatile__ \ 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (" cmp.w #4,%2\n" \ 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bls 8f\n" \ 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %0,%%d0\n" \ 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " neg.b %%d0\n" \ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #3,%%d0\n" \ 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " sub.w %%d0,%2\n" \ 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 2f\n" \ 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 1: move.b (%0)+,(%1)\n" \ 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 2: dbf %%d0,1b\n" \ 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %2,%%d0\n" \ 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " lsr.w #5,%%d0\n" \ 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 4f\n" \ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 3: move.l (%0)+,(%1)\n" \ 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "31: move.l (%0)+,(%1)\n" \ 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "32: move.l (%0)+,(%1)\n" \ 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "33: move.l (%0)+,(%1)\n" \ 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "34: move.l (%0)+,(%1)\n" \ 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "35: move.l (%0)+,(%1)\n" \ 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "36: move.l (%0)+,(%1)\n" \ 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "37: move.l (%0)+,(%1)\n" \ 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 4: dbf %%d0,3b\n" \ 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " move.w %2,%%d0\n" \ 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " lsr.w #2,%%d0\n" \ 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #7,%%d0\n" \ 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 6f\n" \ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 5: move.l (%0)+,(%1)\n" \ 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 6: dbf %%d0,5b\n" \ 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " and.w #3,%2\n" \ 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " bra 8f\n" \ 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 7: move.b (%0)+,(%1)\n" \ 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 8: dbf %2,7b\n" \ 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " moveq.l #0, %2\n" \ 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " 9: \n" \ 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".section .fixup,\"ax\"\n" \ 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .even\n" \ 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "90: moveq.l #1, %2\n" \ 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " jra 9b\n" \ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".previous\n" \ 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".section __ex_table,\"a\"\n" \ 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .align 4\n" \ 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 1b,90b\n" \ 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 3b,90b\n" \ 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 31b,90b\n" \ 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 32b,90b\n" \ 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 33b,90b\n" \ 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 34b,90b\n" \ 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 35b,90b\n" \ 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 36b,90b\n" \ 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 37b,90b\n" \ 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 5b,90b\n" \ 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " .long 7b,90b\n" \ 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ".previous" \ 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "=a"(s), "=a"(d), "=d"(len) \ 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "0"(s), "1"(d), "2"(len) \ 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : "d0") 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int macscsi_pwrite (struct Scsi_Host *instance, 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *src, int len) 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *s; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile unsigned char *d; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_local_declare(); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR5380_setup(instance); 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s = src; 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds d = mac_scsi_drq; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* These conditions are derived from MacOS */ 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (!(NCR5380_read(STATUS_REG) & SR_REQ) 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds || (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))) 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ)) { 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "Error in macscsi_pwrite\n"); 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds CP_MEM_TO_IO(s, d, len); 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len != 0) { 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_NOTICE "Bus error in macscsi_pwrite\n"); 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "NCR5380.c" 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 562d0be4a7d29ad0bd3ce2209dd9e46d410b632db59Christoph Hellwigstatic struct scsi_host_template driver_template = { 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .proc_name = "Mac5380", 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .proc_info = macscsi_proc_info, 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "Macintosh NCR5380 SCSI", 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .detect = macscsi_detect, 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .release = macscsi_release, 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = macscsi_info, 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .queuecommand = macscsi_queue_command, 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .eh_abort_handler = macscsi_abort, 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .eh_bus_reset_handler = macscsi_bus_reset, 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .can_queue = CAN_QUEUE, 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .this_id = 7, 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sg_tablesize = SG_ALL, 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .cmd_per_lun = CMD_PER_LUN, 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .use_clustering = DISABLE_CLUSTERING 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_module.c" 581