945 lines
26 KiB
C
945 lines
26 KiB
C
/*
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* Generic Generic NCR5380 driver
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*
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* Copyright 1993, Drew Eckhardt
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* Visionary Computing
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* (Unix and Linux consulting and custom programming)
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* drew@colorado.edu
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* +1 (303) 440-4894
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*
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* NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
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* K.Lentin@cs.monash.edu.au
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*
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* NCR53C400A extensions (c) 1996, Ingmar Baumgart
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* ingmar@gonzo.schwaben.de
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*
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* DTC3181E extensions (c) 1997, Ronald van Cuijlenborg
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* ronald.van.cuijlenborg@tip.nl or nutty@dds.nl
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*
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* Added ISAPNP support for DTC436 adapters,
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* Thomas Sailer, sailer@ife.ee.ethz.ch
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*
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* ALPHA RELEASE 1.
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*
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* For more information, please consult
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*
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* NCR 5380 Family
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* SCSI Protocol Controller
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* Databook
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*
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* NCR Microelectronics
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* 1635 Aeroplaza Drive
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* Colorado Springs, CO 80916
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* 1+ (719) 578-3400
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* 1+ (800) 334-5454
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*/
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/*
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* TODO : flesh out DMA support, find some one actually using this (I have
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* a memory mapped Trantor board that works fine)
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*/
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/*
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* Options :
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*
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* PARITY - enable parity checking. Not supported.
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*
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* SCSI2 - enable support for SCSI-II tagged queueing. Untested.
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*
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* USLEEP - enable support for devices that don't disconnect. Untested.
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*
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* The card is detected and initialized in one of several ways :
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* 1. With command line overrides - NCR5380=port,irq may be
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* used on the LILO command line to override the defaults.
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*
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* 2. With the GENERIC_NCR5380_OVERRIDE compile time define. This is
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* specified as an array of address, irq, dma, board tuples. Ie, for
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* one board at 0x350, IRQ5, no dma, I could say
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* -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
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*
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* -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
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* IRQ line if overridden on the command line.
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*
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* 3. When included as a module, with arguments passed on the command line:
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* ncr_irq=xx the interrupt
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* ncr_addr=xx the port or base address (for port or memory
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* mapped, resp.)
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* ncr_dma=xx the DMA
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* ncr_5380=1 to set up for a NCR5380 board
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* ncr_53c400=1 to set up for a NCR53C400 board
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* e.g.
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* modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
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* for a port mapped NCR5380 board or
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* modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
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* for a memory mapped NCR53C400 board with interrupts disabled.
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*
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* 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
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* IRQ line if overridden on the command line.
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*
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*/
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/*
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* $Log: generic_NCR5380.c,v $
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*/
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/* settings for DTC3181E card with only Mustek scanner attached */
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#define USLEEP
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#define USLEEP_POLL 1
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#define USLEEP_SLEEP 20
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#define USLEEP_WAITLONG 500
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#define AUTOPROBE_IRQ
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#define AUTOSENSE
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#include <linux/config.h>
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#ifdef CONFIG_SCSI_GENERIC_NCR53C400
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#define NCR53C400_PSEUDO_DMA 1
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#define PSEUDO_DMA
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#define NCR53C400
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#define NCR5380_STATS
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#undef NCR5380_STAT_LIMIT
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#endif
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#include <asm/system.h>
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#include <asm/io.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/blkdev.h>
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#include "scsi.h"
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#include <scsi/scsi_host.h>
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#include "g_NCR5380.h"
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#include "NCR5380.h"
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#include <linux/stat.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/isapnp.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#define NCR_NOT_SET 0
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static int ncr_irq = NCR_NOT_SET;
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static int ncr_dma = NCR_NOT_SET;
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static int ncr_addr = NCR_NOT_SET;
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static int ncr_5380 = NCR_NOT_SET;
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static int ncr_53c400 = NCR_NOT_SET;
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static int ncr_53c400a = NCR_NOT_SET;
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static int dtc_3181e = NCR_NOT_SET;
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static struct override {
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NCR5380_implementation_fields;
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int irq;
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int dma;
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int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
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} overrides
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#ifdef GENERIC_NCR5380_OVERRIDE
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[] __initdata = GENERIC_NCR5380_OVERRIDE;
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#else
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[1] __initdata = { { 0,},};
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#endif
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#define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
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#ifndef MODULE
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/**
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* internal_setup - handle lilo command string override
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* @board: BOARD_* identifier for the board
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* @str: unused
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* @ints: numeric parameters
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*
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* Do LILO command line initialization of the overrides array. Display
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* errors when needed
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*
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* Locks: none
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*/
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static void __init internal_setup(int board, char *str, int *ints)
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{
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static int commandline_current = 0;
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switch (board) {
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case BOARD_NCR5380:
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if (ints[0] != 2 && ints[0] != 3) {
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printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
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return;
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}
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break;
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case BOARD_NCR53C400:
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if (ints[0] != 2) {
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printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
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return;
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}
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break;
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case BOARD_NCR53C400A:
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if (ints[0] != 2) {
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printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
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return;
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}
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break;
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case BOARD_DTC3181E:
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if (ints[0] != 2) {
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printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
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return;
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}
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break;
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}
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if (commandline_current < NO_OVERRIDES) {
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overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
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overrides[commandline_current].irq = ints[2];
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if (ints[0] == 3)
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overrides[commandline_current].dma = ints[3];
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else
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overrides[commandline_current].dma = DMA_NONE;
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overrides[commandline_current].board = board;
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++commandline_current;
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}
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}
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/**
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* do_NCR53C80_setup - set up entry point
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* @str: unused
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*
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* Setup function invoked at boot to parse the ncr5380= command
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* line.
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*/
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static int __init do_NCR5380_setup(char *str)
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{
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int ints[10];
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get_options(str, sizeof(ints) / sizeof(int), ints);
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internal_setup(BOARD_NCR5380, str, ints);
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return 1;
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}
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/**
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* do_NCR53C400_setup - set up entry point
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* @str: unused
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* @ints: integer parameters from kernel setup code
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*
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* Setup function invoked at boot to parse the ncr53c400= command
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* line.
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*/
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static int __init do_NCR53C400_setup(char *str)
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{
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int ints[10];
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get_options(str, sizeof(ints) / sizeof(int), ints);
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internal_setup(BOARD_NCR53C400, str, ints);
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return 1;
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}
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/**
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* do_NCR53C400A_setup - set up entry point
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* @str: unused
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* @ints: integer parameters from kernel setup code
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*
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* Setup function invoked at boot to parse the ncr53c400a= command
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* line.
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*/
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static int __init do_NCR53C400A_setup(char *str)
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{
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int ints[10];
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get_options(str, sizeof(ints) / sizeof(int), ints);
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internal_setup(BOARD_NCR53C400A, str, ints);
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return 1;
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}
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/**
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* do_DTC3181E_setup - set up entry point
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* @str: unused
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* @ints: integer parameters from kernel setup code
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*
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* Setup function invoked at boot to parse the dtc3181e= command
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* line.
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*/
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static int __init do_DTC3181E_setup(char *str)
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{
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int ints[10];
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get_options(str, sizeof(ints) / sizeof(int), ints);
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internal_setup(BOARD_DTC3181E, str, ints);
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return 1;
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}
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#endif
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/**
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* generic_NCR5380_detect - look for NCR5380 controllers
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* @tpnt: the scsi template
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*
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* Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
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* and DTC436(ISAPnP) controllers. If overrides have been set we use
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* them.
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*
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* The caller supplied NCR5380_init function is invoked from here, before
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* the interrupt line is taken.
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*
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* Locks: none
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*/
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int __init generic_NCR5380_detect(struct scsi_host_template * tpnt)
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{
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static int current_override = 0;
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int count, i;
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unsigned int *ports;
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unsigned long region_size = 16;
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static unsigned int __initdata ncr_53c400a_ports[] = {
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0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
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};
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static unsigned int __initdata dtc_3181e_ports[] = {
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0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
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};
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int flags = 0;
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struct Scsi_Host *instance;
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if (ncr_irq != NCR_NOT_SET)
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overrides[0].irq = ncr_irq;
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if (ncr_dma != NCR_NOT_SET)
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overrides[0].dma = ncr_dma;
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if (ncr_addr != NCR_NOT_SET)
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overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
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if (ncr_5380 != NCR_NOT_SET)
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overrides[0].board = BOARD_NCR5380;
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else if (ncr_53c400 != NCR_NOT_SET)
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overrides[0].board = BOARD_NCR53C400;
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else if (ncr_53c400a != NCR_NOT_SET)
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overrides[0].board = BOARD_NCR53C400A;
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else if (dtc_3181e != NCR_NOT_SET)
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overrides[0].board = BOARD_DTC3181E;
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if (!current_override && isapnp_present()) {
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struct pnp_dev *dev = NULL;
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count = 0;
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while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
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if (count >= NO_OVERRIDES)
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break;
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if (pnp_device_attach(dev) < 0) {
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printk(KERN_ERR "dtc436e probe: attach failed\n");
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continue;
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}
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if (pnp_activate_dev(dev) < 0) {
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printk(KERN_ERR "dtc436e probe: activate failed\n");
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pnp_device_detach(dev);
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continue;
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}
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if (!pnp_port_valid(dev, 0)) {
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printk(KERN_ERR "dtc436e probe: no valid port\n");
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pnp_device_detach(dev);
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continue;
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}
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if (pnp_irq_valid(dev, 0))
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overrides[count].irq = pnp_irq(dev, 0);
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else
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overrides[count].irq = SCSI_IRQ_NONE;
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if (pnp_dma_valid(dev, 0))
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overrides[count].dma = pnp_dma(dev, 0);
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else
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overrides[count].dma = DMA_NONE;
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overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
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overrides[count].board = BOARD_DTC3181E;
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count++;
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}
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}
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tpnt->proc_name = "g_NCR5380";
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for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
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if (!(overrides[current_override].NCR5380_map_name))
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continue;
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ports = NULL;
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switch (overrides[current_override].board) {
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case BOARD_NCR5380:
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flags = FLAG_NO_PSEUDO_DMA;
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break;
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case BOARD_NCR53C400:
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flags = FLAG_NCR53C400;
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break;
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case BOARD_NCR53C400A:
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flags = FLAG_NO_PSEUDO_DMA;
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ports = ncr_53c400a_ports;
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break;
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case BOARD_DTC3181E:
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flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
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ports = dtc_3181e_ports;
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break;
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}
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#ifndef CONFIG_SCSI_G_NCR5380_MEM
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if (ports) {
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/* wakeup sequence for the NCR53C400A and DTC3181E */
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/* Disable the adapter and look for a free io port */
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outb(0x59, 0x779);
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outb(0xb9, 0x379);
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outb(0xc5, 0x379);
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outb(0xae, 0x379);
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outb(0xa6, 0x379);
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outb(0x00, 0x379);
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if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
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for (i = 0; ports[i]; i++) {
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if (!request_region(ports[i], 16, "ncr53c80"))
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continue;
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if (overrides[current_override].NCR5380_map_name == ports[i])
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break;
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release_region(ports[i], 16);
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} else
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for (i = 0; ports[i]; i++) {
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if (!request_region(ports[i], 16, "ncr53c80"))
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continue;
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if (inb(ports[i]) == 0xff)
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break;
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release_region(ports[i], 16);
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}
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if (ports[i]) {
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/* At this point we have our region reserved */
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outb(0x59, 0x779);
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outb(0xb9, 0x379);
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outb(0xc5, 0x379);
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outb(0xae, 0x379);
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outb(0xa6, 0x379);
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outb(0x80 | i, 0x379); /* set io port to be used */
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outb(0xc0, ports[i] + 9);
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if (inb(ports[i] + 9) != 0x80)
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continue;
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else
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overrides[current_override].NCR5380_map_name = ports[i];
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} else
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continue;
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}
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else
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{
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/* Not a 53C400A style setup - just grab */
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if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
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continue;
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region_size = NCR5380_region_size;
|
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}
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#else
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if(!request_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380"))
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continue;
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#endif
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instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
|
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if (instance == NULL) {
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#ifndef CONFIG_SCSI_G_NCR5380_MEM
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release_region(overrides[current_override].NCR5380_map_name, region_size);
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#else
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release_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
|
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#endif
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continue;
|
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}
|
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|
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instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
|
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#ifndef CONFIG_SCSI_G_NCR5380_MEM
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instance->n_io_port = region_size;
|
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#endif
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|
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NCR5380_init(instance, flags);
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|
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if (overrides[current_override].irq != IRQ_AUTO)
|
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instance->irq = overrides[current_override].irq;
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else
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instance->irq = NCR5380_probe_irq(instance, 0xffff);
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if (instance->irq != SCSI_IRQ_NONE)
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if (request_irq(instance->irq, generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", instance)) {
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printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
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instance->irq = SCSI_IRQ_NONE;
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}
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if (instance->irq == SCSI_IRQ_NONE) {
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printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
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printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
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}
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printk(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
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if (instance->irq == SCSI_IRQ_NONE)
|
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printk(" interrupts disabled");
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else
|
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printk(" irq %d", instance->irq);
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printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
|
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NCR5380_print_options(instance);
|
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printk("\n");
|
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|
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++current_override;
|
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++count;
|
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}
|
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return count;
|
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}
|
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|
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/**
|
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* generic_NCR5380_info - reporting string
|
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* @host: NCR5380 to report on
|
|
*
|
|
* Report driver information for the NCR5380
|
|
*/
|
|
|
|
const char *generic_NCR5380_info(struct Scsi_Host *host)
|
|
{
|
|
static const char string[] = "Generic NCR5380/53C400 Driver";
|
|
return string;
|
|
}
|
|
|
|
/**
|
|
* generic_NCR5380_release_resources - free resources
|
|
* @instance: host adapter to clean up
|
|
*
|
|
* Free the generic interface resources from this adapter.
|
|
*
|
|
* Locks: none
|
|
*/
|
|
|
|
int generic_NCR5380_release_resources(struct Scsi_Host *instance)
|
|
{
|
|
NCR5380_local_declare();
|
|
NCR5380_setup(instance);
|
|
|
|
if (instance->irq != SCSI_IRQ_NONE)
|
|
free_irq(instance->irq, NULL);
|
|
NCR5380_exit(instance);
|
|
|
|
#ifndef CONFIG_SCSI_G_NCR5380_MEM
|
|
release_region(instance->NCR5380_instance_name, instance->n_io_port);
|
|
#else
|
|
release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
|
|
#endif
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef BIOSPARAM
|
|
/**
|
|
* generic_NCR5380_biosparam
|
|
* @disk: disk to compute geometry for
|
|
* @dev: device identifier for this disk
|
|
* @ip: sizes to fill in
|
|
*
|
|
* Generates a BIOS / DOS compatible H-C-S mapping for the specified
|
|
* device / size.
|
|
*
|
|
* XXX Most SCSI boards use this mapping, I could be incorrect. Someone
|
|
* using hard disks on a trantor should verify that this mapping
|
|
* corresponds to that used by the BIOS / ASPI driver by running the linux
|
|
* fdisk program and matching the H_C_S coordinates to what DOS uses.
|
|
*
|
|
* Locks: none
|
|
*/
|
|
|
|
static int
|
|
generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
|
|
sector_t capacity, int *ip)
|
|
{
|
|
ip[0] = 64;
|
|
ip[1] = 32;
|
|
ip[2] = capacity >> 11;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if NCR53C400_PSEUDO_DMA
|
|
|
|
/**
|
|
* NCR5380_pread - pseudo DMA read
|
|
* @instance: adapter to read from
|
|
* @dst: buffer to read into
|
|
* @len: buffer length
|
|
*
|
|
* Perform a psuedo DMA mode read from an NCR53C400 or equivalent
|
|
* controller
|
|
*/
|
|
|
|
static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
|
|
{
|
|
int blocks = len / 128;
|
|
int start = 0;
|
|
int bl;
|
|
|
|
NCR5380_local_declare();
|
|
NCR5380_setup(instance);
|
|
|
|
NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
|
|
NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
|
|
while (1) {
|
|
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
|
|
break;
|
|
}
|
|
if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
|
|
printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
|
|
return -1;
|
|
}
|
|
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
|
|
|
|
#ifndef CONFIG_SCSI_G_NCR5380_MEM
|
|
{
|
|
int i;
|
|
for (i = 0; i < 128; i++)
|
|
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
|
|
}
|
|
#else
|
|
/* implies CONFIG_SCSI_G_NCR5380_MEM */
|
|
isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
|
|
#endif
|
|
start += 128;
|
|
blocks--;
|
|
}
|
|
|
|
if (blocks) {
|
|
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
|
|
{
|
|
// FIXME - no timeout
|
|
}
|
|
|
|
#ifndef CONFIG_SCSI_G_NCR5380_MEM
|
|
{
|
|
int i;
|
|
for (i = 0; i < 128; i++)
|
|
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
|
|
}
|
|
#else
|
|
/* implies CONFIG_SCSI_G_NCR5380_MEM */
|
|
isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
|
|
#endif
|
|
start += 128;
|
|
blocks--;
|
|
}
|
|
|
|
if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
|
|
printk("53C400r: no 53C80 gated irq after transfer");
|
|
|
|
#if 0
|
|
/*
|
|
* DON'T DO THIS - THEY NEVER ARRIVE!
|
|
*/
|
|
printk("53C400r: Waiting for 53C80 registers\n");
|
|
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
|
|
;
|
|
#endif
|
|
if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
|
|
printk(KERN_ERR "53C400r: no end dma signal\n");
|
|
|
|
NCR5380_write(MODE_REG, MR_BASE);
|
|
NCR5380_read(RESET_PARITY_INTERRUPT_REG);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* NCR5380_write - pseudo DMA write
|
|
* @instance: adapter to read from
|
|
* @dst: buffer to read into
|
|
* @len: buffer length
|
|
*
|
|
* Perform a psuedo DMA mode read from an NCR53C400 or equivalent
|
|
* controller
|
|
*/
|
|
|
|
static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
|
|
{
|
|
int blocks = len / 128;
|
|
int start = 0;
|
|
int bl;
|
|
int i;
|
|
|
|
NCR5380_local_declare();
|
|
NCR5380_setup(instance);
|
|
|
|
NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
|
|
NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
|
|
while (1) {
|
|
if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
|
|
printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
|
|
return -1;
|
|
}
|
|
|
|
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
|
|
break;
|
|
}
|
|
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
|
|
; // FIXME - timeout
|
|
#ifndef CONFIG_SCSI_G_NCR5380_MEM
|
|
{
|
|
for (i = 0; i < 128; i++)
|
|
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
|
|
}
|
|
#else
|
|
/* implies CONFIG_SCSI_G_NCR5380_MEM */
|
|
isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
|
|
#endif
|
|
start += 128;
|
|
blocks--;
|
|
}
|
|
if (blocks) {
|
|
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
|
|
; // FIXME - no timeout
|
|
|
|
#ifndef CONFIG_SCSI_G_NCR5380_MEM
|
|
{
|
|
for (i = 0; i < 128; i++)
|
|
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
|
|
}
|
|
#else
|
|
/* implies CONFIG_SCSI_G_NCR5380_MEM */
|
|
isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
|
|
#endif
|
|
start += 128;
|
|
blocks--;
|
|
}
|
|
|
|
#if 0
|
|
printk("53C400w: waiting for registers to be available\n");
|
|
THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
|
|
printk("53C400w: Got em\n");
|
|
#endif
|
|
|
|
/* Let's wait for this instead - could be ugly */
|
|
/* All documentation says to check for this. Maybe my hardware is too
|
|
* fast. Waiting for it seems to work fine! KLL
|
|
*/
|
|
while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
|
|
; // FIXME - no timeout
|
|
|
|
/*
|
|
* I know. i is certainly != 0 here but the loop is new. See previous
|
|
* comment.
|
|
*/
|
|
if (i) {
|
|
if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
|
|
printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
|
|
} else
|
|
printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
|
|
|
|
#if 0
|
|
if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
|
|
printk(KERN_ERR "53C400w: no end dma signal\n");
|
|
}
|
|
#endif
|
|
while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
|
|
; // TIMEOUT
|
|
return 0;
|
|
}
|
|
#endif /* PSEUDO_DMA */
|
|
|
|
/*
|
|
* Include the NCR5380 core code that we build our driver around
|
|
*/
|
|
|
|
#include "NCR5380.c"
|
|
|
|
#define PRINTP(x) len += sprintf(buffer+len, x)
|
|
#define ANDP ,
|
|
|
|
static int sprint_opcode(char *buffer, int len, int opcode)
|
|
{
|
|
int start = len;
|
|
PRINTP("0x%02x " ANDP opcode);
|
|
return len - start;
|
|
}
|
|
|
|
static int sprint_command(char *buffer, int len, unsigned char *command)
|
|
{
|
|
int i, s, start = len;
|
|
len += sprint_opcode(buffer, len, command[0]);
|
|
for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
|
|
PRINTP("%02x " ANDP command[i]);
|
|
PRINTP("\n");
|
|
return len - start;
|
|
}
|
|
|
|
/**
|
|
* sprintf_Scsi_Cmnd - print a scsi command
|
|
* @buffer: buffr to print into
|
|
* @len: buffer length
|
|
* @cmd: SCSI command block
|
|
*
|
|
* Print out the target and command data in hex
|
|
*/
|
|
|
|
static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd)
|
|
{
|
|
int start = len;
|
|
PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
|
|
PRINTP(" command = ");
|
|
len += sprint_command(buffer, len, cmd->cmnd);
|
|
return len - start;
|
|
}
|
|
|
|
/**
|
|
* generic_NCR5380_proc_info - /proc for NCR5380 driver
|
|
* @buffer: buffer to print into
|
|
* @start: start position
|
|
* @offset: offset into buffer
|
|
* @len: length
|
|
* @hostno: instance to affect
|
|
* @inout: read/write
|
|
*
|
|
* Provide the procfs information for the 5380 controller. We fill
|
|
* this with useful debugging information including the commands
|
|
* being executed, disconnected command queue and the statistical
|
|
* data
|
|
*
|
|
* Locks: global cli/lock for queue walk
|
|
*/
|
|
|
|
static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, char **start, off_t offset, int length, int inout)
|
|
{
|
|
int len = 0;
|
|
NCR5380_local_declare();
|
|
unsigned long flags;
|
|
unsigned char status;
|
|
int i;
|
|
Scsi_Cmnd *ptr;
|
|
struct NCR5380_hostdata *hostdata;
|
|
#ifdef NCR5380_STATS
|
|
struct scsi_device *dev;
|
|
extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
|
|
#endif
|
|
|
|
NCR5380_setup(scsi_ptr);
|
|
hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
|
|
|
|
spin_lock_irqsave(scsi_ptr->host_lock, flags);
|
|
PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
|
|
PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
|
|
PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
|
|
#ifdef NCR53C400
|
|
PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
|
|
PRINTP("NCR53C400 card%s detected\n" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
|
|
# if NCR53C400_PSEUDO_DMA
|
|
PRINTP("NCR53C400 pseudo DMA used\n");
|
|
# endif
|
|
#else
|
|
PRINTP("NO NCR53C400 driver extensions\n");
|
|
#endif
|
|
PRINTP("Using %s mapping at %s 0x%lx, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
|
|
if (scsi_ptr->irq == SCSI_IRQ_NONE)
|
|
PRINTP("no interrupt\n");
|
|
else
|
|
PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
|
|
|
|
#ifdef NCR5380_STATS
|
|
if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
|
|
PRINTP("There are commands pending, transfer rates may be crud\n");
|
|
if (hostdata->pendingr)
|
|
PRINTP(" %d pending reads" ANDP hostdata->pendingr);
|
|
if (hostdata->pendingw)
|
|
PRINTP(" %d pending writes" ANDP hostdata->pendingw);
|
|
if (hostdata->pendingr || hostdata->pendingw)
|
|
PRINTP("\n");
|
|
shost_for_each_device(dev, scsi_ptr) {
|
|
unsigned long br = hostdata->bytes_read[dev->id];
|
|
unsigned long bw = hostdata->bytes_write[dev->id];
|
|
long tr = hostdata->time_read[dev->id] / HZ;
|
|
long tw = hostdata->time_write[dev->id] / HZ;
|
|
|
|
PRINTP(" T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
|
|
for (i = 0; i < 8; i++)
|
|
if (dev->vendor[i] >= 0x20)
|
|
*(buffer + (len++)) = dev->vendor[i];
|
|
*(buffer + (len++)) = ' ';
|
|
for (i = 0; i < 16; i++)
|
|
if (dev->model[i] >= 0x20)
|
|
*(buffer + (len++)) = dev->model[i];
|
|
*(buffer + (len++)) = ' ';
|
|
for (i = 0; i < 4; i++)
|
|
if (dev->rev[i] >= 0x20)
|
|
*(buffer + (len++)) = dev->rev[i];
|
|
*(buffer + (len++)) = ' ';
|
|
|
|
PRINTP("\n%10ld kb read in %5ld secs" ANDP br / 1024 ANDP tr);
|
|
if (tr)
|
|
PRINTP(" @ %5ld bps" ANDP br / tr);
|
|
|
|
PRINTP("\n%10ld kb written in %5ld secs" ANDP bw / 1024 ANDP tw);
|
|
if (tw)
|
|
PRINTP(" @ %5ld bps" ANDP bw / tw);
|
|
PRINTP("\n");
|
|
}
|
|
#endif
|
|
|
|
status = NCR5380_read(STATUS_REG);
|
|
if (!(status & SR_REQ))
|
|
PRINTP("REQ not asserted, phase unknown.\n");
|
|
else {
|
|
for (i = 0; (phases[i].value != PHASE_UNKNOWN) && (phases[i].value != (status & PHASE_MASK)); ++i);
|
|
PRINTP("Phase %s\n" ANDP phases[i].name);
|
|
}
|
|
|
|
if (!hostdata->connected) {
|
|
PRINTP("No currently connected command\n");
|
|
} else {
|
|
len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
|
|
}
|
|
|
|
PRINTP("issue_queue\n");
|
|
|
|
for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
|
|
len += sprint_Scsi_Cmnd(buffer, len, ptr);
|
|
|
|
PRINTP("disconnected_queue\n");
|
|
|
|
for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
|
|
len += sprint_Scsi_Cmnd(buffer, len, ptr);
|
|
|
|
*start = buffer + offset;
|
|
len -= offset;
|
|
if (len > length)
|
|
len = length;
|
|
spin_unlock_irqrestore(scsi_ptr->host_lock, flags);
|
|
return len;
|
|
}
|
|
|
|
#undef PRINTP
|
|
#undef ANDP
|
|
|
|
static struct scsi_host_template driver_template = {
|
|
.proc_info = generic_NCR5380_proc_info,
|
|
.name = "Generic NCR5380/NCR53C400 Scsi Driver",
|
|
.detect = generic_NCR5380_detect,
|
|
.release = generic_NCR5380_release_resources,
|
|
.info = generic_NCR5380_info,
|
|
.queuecommand = generic_NCR5380_queue_command,
|
|
.eh_abort_handler = generic_NCR5380_abort,
|
|
.eh_bus_reset_handler = generic_NCR5380_bus_reset,
|
|
.bios_param = NCR5380_BIOSPARAM,
|
|
.can_queue = CAN_QUEUE,
|
|
.this_id = 7,
|
|
.sg_tablesize = SG_ALL,
|
|
.cmd_per_lun = CMD_PER_LUN,
|
|
.use_clustering = DISABLE_CLUSTERING,
|
|
};
|
|
#include <linux/module.h>
|
|
#include "scsi_module.c"
|
|
|
|
module_param(ncr_irq, int, 0);
|
|
module_param(ncr_dma, int, 0);
|
|
module_param(ncr_addr, int, 0);
|
|
module_param(ncr_5380, int, 0);
|
|
module_param(ncr_53c400, int, 0);
|
|
module_param(ncr_53c400a, int, 0);
|
|
module_param(dtc_3181e, int, 0);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
static struct isapnp_device_id id_table[] __devinitdata = {
|
|
{
|
|
ISAPNP_ANY_ID, ISAPNP_ANY_ID,
|
|
ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
|
|
0},
|
|
{0}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(isapnp, id_table);
|
|
|
|
|
|
__setup("ncr5380=", do_NCR5380_setup);
|
|
__setup("ncr53c400=", do_NCR53C400_setup);
|
|
__setup("ncr53c400a=", do_NCR53C400A_setup);
|
|
__setup("dtc3181e=", do_DTC3181E_setup);
|