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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [drivers/] [scsi/] [hosts.c] - Blame information for rev 1782

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/*
 *  hosts.c Copyright (C) 1992 Drew Eckhardt
 *          Copyright (C) 1993, 1994, 1995 Eric Youngdale
 *
 *  mid to lowlevel SCSI driver interface
 *      Initial versions: Drew Eckhardt
 *      Subsequent revisions: Eric Youngdale
 *
 *  <drew@colorado.edu>
 */
 
 
/*
 *  This file contains the medium level SCSI
 *  host interface initialization, as well as the scsi_hosts array of SCSI
 *  hosts currently present in the system.
 */
 
/*
 * Don't import our own symbols, as this would severely mess up our
 * symbol tables.
 */
#define _SCSI_SYMS_VER_
#define __NO_VERSION__
#include <linux/module.h>
 
#include <linux/config.h>
#include <linux/blk.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
 
#include "scsi.h"
 
#ifndef NULL
#define NULL 0L
#endif
 
#define HOSTS_C
 
#include "hosts.h"
 
#ifdef CONFIG_A3000_SCSI
#include "a3000.h"
#endif
 
#ifdef CONFIG_A2091_SCSI
#include "a2091.h"
#endif
 
#ifdef CONFIG_GVP11_SCSI
#include "gvp11.h"
#endif
 
#ifdef CONFIG_ATARI_SCSI
#include "atari_scsi.h"
#endif
 
#ifdef CONFIG_SCSI_ADVANSYS
#include "advansys.h"
#endif
 
#ifdef CONFIG_SCSI_AHA152X
#include "aha152x.h"
#endif
 
#ifdef CONFIG_SCSI_AHA1542
#include "aha1542.h"
#endif
 
#ifdef CONFIG_SCSI_AHA1740
#include "aha1740.h"
#endif
 
#ifdef CONFIG_SCSI_AIC7XXX
#include "aic7xxx.h"
#endif
 
#ifdef CONFIG_SCSI_BUSLOGIC
#include "BusLogic.h"
#endif
 
#ifdef CONFIG_SCSI_EATA_DMA
#include "eata_dma.h"
#endif
 
#ifdef CONFIG_SCSI_EATA_PIO
#include "eata_pio.h"
#endif
 
#ifdef CONFIG_SCSI_U14_34F
#include "u14-34f.h"
#endif
 
#ifdef CONFIG_SCSI_FUTURE_DOMAIN
#include "fdomain.h"
#endif
 
#ifdef CONFIG_SCSI_GENERIC_NCR5380
#include "g_NCR5380.h"
#endif
 
#ifdef CONFIG_SCSI_IN2000
#include "in2000.h"
#endif
 
#ifdef CONFIG_SCSI_PAS16
#include "pas16.h"
#endif
 
#ifdef CONFIG_SCSI_QLOGIC_FAS
#include "qlogicfas.h"
#endif
 
#ifdef CONFIG_SCSI_QLOGIC_ISP
#include "qlogicisp.h"
#endif
 
#ifdef CONFIG_SCSI_SEAGATE
#include "seagate.h"
#endif
 
#ifdef CONFIG_SCSI_T128
#include "t128.h"
#endif
 
#ifdef CONFIG_SCSI_DTC3280
#include "dtc.h"
#endif
 
#ifdef CONFIG_SCSI_NCR53C7xx
#include "53c7,8xx.h"
#endif
 
#ifdef CONFIG_SCSI_NCR53C8XX
#include "ncr53c8xx.h"
#endif
 
#ifdef CONFIG_SCSI_ULTRASTOR
#include "ultrastor.h"
#endif
 
#ifdef CONFIG_SCSI_7000FASST
#include "wd7000.h"
#endif
 
#ifdef CONFIG_SCSI_EATA
#include "eata.h"
#endif
 
#ifdef CONFIG_SCSI_NCR53C406A
#include "NCR53c406a.h"
#endif
 
#ifdef CONFIG_SCSI_SYM53C416 
#include "sym53c416.h" 
#endif
 
#ifdef CONFIG_SCSI_DC390T
#include "dc390.h"
#endif
 
#ifdef CONFIG_SCSI_AM53C974
#include "AM53C974.h"
#endif
 
#ifdef CONFIG_SCSI_MEGARAID
#include "megaraid.h"
#endif
 
#ifdef CONFIG_SCSI_PPA
#include "ppa.h"
#endif
 
#ifdef CONFIG_SCSI_ACARD
#include "atp870u.h"
#endif
 
#ifdef CONFIG_SCSI_SUNESP
#include "esp.h"
#endif
 
#ifdef CONFIG_BLK_DEV_IDESCSI
#include "ide-scsi.h"
#endif
 
#ifdef CONFIG_SCSI_GDTH
#include "gdth.h"
#endif
 
#ifdef CONFIG_SCSI_INITIO
#include "ini9100u.h"
#endif
 
#ifdef CONFIG_SCSI_TC2550
#include "tripace.h"
#endif
 
#ifdef CONFIG_SCSI_INIA100
#include "inia100.h"
#endif
 
#ifdef CONFIG_SCSI_PCI2000
#include "pci2000.h"
#endif
 
#ifdef CONFIG_SCSI_PCI2220I
#include "pci2220i.h"
#endif
 
#ifdef CONFIG_SCSI_PSI240I
#include "psi240i.h"
#endif
 
#ifdef CONFIG_SCSI_DEBUG
#include "scsi_debug.h"
#endif
 
 
/*
static const char RCSid[] = "$Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/uclinux/uClinux-2.0.x/drivers/scsi/hosts.c,v 1.1.1.1 2001-09-10 07:44:33 simons Exp $";
*/
 
/*
 *  The scsi host entries should be in the order you wish the
 *  cards to be detected.  A driver may appear more than once IFF
 *  it can deal with being detected (and therefore initialized)
 *  with more than one simultaneous host number, can handle being
 *  reentrant, etc.
 *
 *  They may appear in any order, as each SCSI host is told which host
 *  number it is during detection.
 */
 
/* This is a placeholder for controllers that are not configured into
 * the system - we do this to ensure that the controller numbering is
 * always consistent, no matter how the kernel is configured. */
 
#define NO_CONTROLLER {NULL, NULL, NULL, NULL, NULL, NULL, NULL, \
                           NULL, NULL, 0, 0, 0, 0, 0, 0}
 
/*
 *  When figure is run, we don't want to link to any object code.  Since
 *  the macro for each host will contain function pointers, we cannot
 *  use it and instead must use a "blank" that does no such
 *  idiocy.
 */
 
Scsi_Host_Template * scsi_hosts = NULL;
 
static Scsi_Host_Template builtin_scsi_hosts[] =
{
#ifdef CONFIG_AMIGA
#ifdef CONFIG_A3000_SCSI
        A3000_SCSI,
#endif
#ifdef CONFIG_A2091_SCSI
        A2091_SCSI,
#endif
#ifdef CONFIG_GVP11_SCSI
        GVP11_SCSI,
#endif
#endif
 
#ifdef CONFIG_ATARI
#ifdef CONFIG_ATARI_SCSI
        ATARI_SCSI,
#endif
#endif
 
#ifdef CONFIG_SCSI_ADVANSYS
        ADVANSYS,
#endif
/* BusLogic must come before aha1542.c */
#ifdef CONFIG_SCSI_BUSLOGIC
    BUSLOGIC,
#endif
#ifdef CONFIG_SCSI_U14_34F
    ULTRASTOR_14_34F,
#endif
#ifdef CONFIG_SCSI_ULTRASTOR
    ULTRASTOR_14F,
#endif
#ifdef CONFIG_SCSI_AHA152X
    AHA152X,
#endif
#ifdef CONFIG_SCSI_AHA1542
    AHA1542,
#endif
#ifdef CONFIG_SCSI_AHA1740
    AHA1740,
#endif
#ifdef CONFIG_SCSI_AIC7XXX
    AIC7XXX,
#endif
#ifdef CONFIG_SCSI_FUTURE_DOMAIN
    FDOMAIN_16X0,
#endif
#ifdef CONFIG_SCSI_IN2000
    IN2000,
#endif
#ifdef CONFIG_SCSI_GENERIC_NCR5380
    GENERIC_NCR5380,
#endif
#ifdef CONFIG_SCSI_NCR53C406A   /* 53C406A should come before QLOGIC */
    NCR53c406a,
#endif
#ifdef CONFIG_SCSI_SYM53C416 
    SYM53C416,
#endif 
#ifdef CONFIG_SCSI_QLOGIC_FAS
    QLOGICFAS,
#endif
#ifdef CONFIG_SCSI_QLOGIC_ISP
    QLOGICISP,
#endif
#ifdef CONFIG_SCSI_PAS16
    MV_PAS16,
#endif
#ifdef CONFIG_SCSI_SEAGATE
    SEAGATE_ST0X,
#endif
#ifdef CONFIG_SCSI_T128
    TRANTOR_T128,
#endif
#ifdef CONFIG_SCSI_DTC3280
        DTC3x80,
#endif
#ifdef CONFIG_SCSI_DC390T
    DC390_T,
#endif
#ifdef CONFIG_SCSI_NCR53C7xx
    NCR53c7xx,
#endif
#ifdef CONFIG_SCSI_NCR53C8XX
    NCR53C8XX,
#endif
#ifdef CONFIG_SCSI_EATA_DMA
    EATA_DMA,
#endif
#ifdef CONFIG_SCSI_EATA_PIO
    EATA_PIO,
#endif
#ifdef CONFIG_SCSI_7000FASST
    WD7000,
#endif
#ifdef CONFIG_SCSI_EATA
    EATA,
#endif
#ifdef CONFIG_SCSI_AM53C974
    AM53C974,
#endif
#ifdef CONFIG_SCSI_MEGARAID
    MEGARAID,
#endif
#ifdef CONFIG_SCSI_INIA100
    INIA100,
#endif
#ifdef CONFIG_SCSI_PPA
    PPA,
#endif
#ifdef CONFIG_SCSI_ACARD
    ATP870U,
#endif
#ifdef CONFIG_SCSI_SUNESP
    SCSI_SPARC_ESP,
#endif
#ifdef CONFIG_SCSI_GDTH
    GDTH,
#endif
#ifdef CONFIG_SCSI_INITIO
    INI9100U,
#endif
#ifdef CONFIG_SCSI_PCI2000
    PCI2000,
#endif
#ifdef CONFIG_SCSI_PCI2220I
    PCI2220I,
#endif
#ifdef CONFIG_SCSI_PSI240I
    PSI240I,
#endif
#ifdef CONFIG_BLK_DEV_IDESCSI
    IDESCSI,
#endif
#ifdef CONFIG_SCSI_DEBUG
    SCSI_DEBUG,
#endif
};
 
#define MAX_SCSI_HOSTS (sizeof(builtin_scsi_hosts) / sizeof(Scsi_Host_Template))
 
 
/*
 *  Our semaphores and timeout counters, where size depends on
 *      MAX_SCSI_HOSTS here.
 */
 
struct Scsi_Host * scsi_hostlist = NULL;
struct Scsi_Device_Template * scsi_devicelist = NULL;
 
int max_scsi_hosts = 0;
int next_scsi_host = 0;
 
void
scsi_unregister(struct Scsi_Host * sh){
    struct Scsi_Host * shpnt;
 
    if(scsi_hostlist == sh)
        scsi_hostlist = sh->next;
    else {
        shpnt = scsi_hostlist;
        while(shpnt->next != sh) shpnt = shpnt->next;
        shpnt->next = shpnt->next->next;
    }
 
    /* If we are removing the last host registered, it is safe to reuse
     * its host number (this avoids "holes" at boot time) (DB)
     * It is also safe to reuse those of numbers directly below which have
     * been released earlier (to avoid some holes in numbering).
     */
    if(sh->host_no == max_scsi_hosts - 1) {
        while(--max_scsi_hosts >= next_scsi_host) {
            shpnt = scsi_hostlist;
            while(shpnt && shpnt->host_no != max_scsi_hosts - 1)
                shpnt = shpnt->next;
            if(shpnt)
                break;
        }
    }
    next_scsi_host--;
    scsi_init_free((char *) sh, sizeof(struct Scsi_Host) + sh->extra_bytes);
}
 
/* We call this when we come across a new host adapter. We only do this
 * once we are 100% sure that we want to use this host adapter -  it is a
 * pain to reverse this, so we try to avoid it
 */
 
struct Scsi_Host * scsi_register(Scsi_Host_Template * tpnt, int j){
    struct Scsi_Host * retval, *shpnt;
    retval = (struct Scsi_Host *)scsi_init_malloc(sizeof(struct Scsi_Host) + j,
                                                  (tpnt->unchecked_isa_dma && j ? GFP_DMA : 0) | GFP_ATOMIC);
    retval->host_busy = 0;
    retval->block = NULL;
    retval->wish_block = 0;
    if(j > 0xffff) panic("Too many extra bytes requested\n");
    retval->extra_bytes = j;
    retval->loaded_as_module = scsi_loadable_module_flag;
    retval->host_no = max_scsi_hosts++; /* never reuse host_no (DB) */
    next_scsi_host++;
    retval->host_queue = NULL;
    retval->host_wait = NULL;
    retval->last_reset = 0;
    retval->irq = 0;
    retval->dma_channel = 0xff;
 
    /* These three are default values which can be overridden */
    retval->max_channel = 0;
    retval->max_id = 8;
    retval->max_lun = 8;
 
    retval->unique_id = 0;
    retval->io_port = 0;
    retval->hostt = tpnt;
    retval->next = NULL;
#ifdef DEBUG
    printk("Register %x %x: %d\n", (int)retval, (int)retval->hostt, j);
#endif
 
    /* The next six are the default values which can be overridden
     * if need be */
    retval->this_id = tpnt->this_id;
    retval->can_queue = tpnt->can_queue;
    retval->sg_tablesize = tpnt->sg_tablesize;
    retval->cmd_per_lun = tpnt->cmd_per_lun;
    retval->unchecked_isa_dma = tpnt->unchecked_isa_dma;
    retval->use_clustering = tpnt->use_clustering;
 
    retval->select_queue_depths = NULL;
 
    if(!scsi_hostlist)
        scsi_hostlist = retval;
    else
    {
        shpnt = scsi_hostlist;
        while(shpnt->next) shpnt = shpnt->next;
        shpnt->next = retval;
    }
 
    return retval;
}
 
int
scsi_register_device(struct Scsi_Device_Template * sdpnt)
{
    if(sdpnt->next) panic("Device already registered");
    sdpnt->next = scsi_devicelist;
    scsi_devicelist = sdpnt;
    return 0;
}
 
unsigned int scsi_init()
{
    static int called = 0;
    int i, pcount;
    Scsi_Host_Template * tpnt;
    struct Scsi_Host * shpnt;
    const char * name;
 
    if(called) return 0;
 
    called = 1;
    for (tpnt = &builtin_scsi_hosts[0], i = 0; i < MAX_SCSI_HOSTS; ++i, tpnt++)
    {
        /*
         * Initialize our semaphores.  -1 is interpreted to mean
         * "inactive" - where as 0 will indicate a time out condition.
         */
 
        pcount = next_scsi_host;
        if ((tpnt->detect) &&
            (tpnt->present =
             tpnt->detect(tpnt)))
        {
            /* The only time this should come up is when people use
             * some kind of patched driver of some kind or another. */
            if(pcount == next_scsi_host) {
                if(tpnt->present > 1)
                    panic("Failure to register low-level scsi driver");
                /* The low-level driver failed to register a driver.  We
                 * can do this now. */
                scsi_register(tpnt,0);
            }
            tpnt->next = scsi_hosts;
            scsi_hosts = tpnt;
 
            /* Add the driver to /proc/scsi */
#if CONFIG_PROC_FS 
            build_proc_dir_entries(tpnt);
#endif
        }
    }
 
    for(shpnt=scsi_hostlist; shpnt; shpnt = shpnt->next)
    {
        if(shpnt->hostt->info)
            name = shpnt->hostt->info(shpnt);
        else
            name = shpnt->hostt->name;
        printk ("scsi%d : %s\n", /* And print a little message */
                shpnt->host_no, name);
    }
 
    printk ("scsi : %d host%s.\n", next_scsi_host,
            (next_scsi_host == 1) ? "" : "s");
 
    scsi_make_blocked_list();
 
    /* Now attach the high level drivers */
#ifdef CONFIG_BLK_DEV_SD
    scsi_register_device(&sd_template);
#endif
#ifdef CONFIG_BLK_DEV_SR
    scsi_register_device(&sr_template);
#endif
#ifdef CONFIG_CHR_DEV_ST
    scsi_register_device(&st_template);
#endif
#ifdef CONFIG_CHR_DEV_SG
    scsi_register_device(&sg_template);
#endif
 
#if 0      
    max_scsi_hosts = next_scsi_host;
#endif
    return 0;
}
 
/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-indent-level: 4
 * c-brace-imaginary-offset: 0
 * c-brace-offset: -4
 * c-argdecl-indent: 4
 * c-label-offset: -4
 * c-continued-statement-offset: 4
 * c-continued-brace-offset: 0
 * indent-tabs-mode: nil
 * tab-width: 8
 * End:
 */

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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [drivers/] [scsi/] [hosts.c] - Blame information for rev 1782

Line No.	Rev	Author	Line
1	199	simons	`/*`
2			`* hosts.c Copyright (C) 1992 Drew Eckhardt`
3			`* Copyright (C) 1993, 1994, 1995 Eric Youngdale`
4			`*`
5			`* mid to lowlevel SCSI driver interface`
6			`* Initial versions: Drew Eckhardt`
7			`* Subsequent revisions: Eric Youngdale`
8			`*`
9			`* <drew@colorado.edu>`
10			`*/`
11
12
13			`/*`
14			`* This file contains the medium level SCSI`
15			`* host interface initialization, as well as the scsi_hosts array of SCSI`
16			`* hosts currently present in the system.`
17			`*/`
18
19			`/*`
20			`* Don't import our own symbols, as this would severely mess up our`
21			`* symbol tables.`
22			`*/`
23			`#define _SCSI_SYMS_VER_`
24			`#define __NO_VERSION__`
25			`#include <linux/module.h>`
26
27			`#include <linux/config.h>`
28			`#include <linux/blk.h>`
29			`#include <linux/kernel.h>`
30			`#include <linux/string.h>`
31			`#include <linux/mm.h>`
32			`#include <linux/proc_fs.h>`
33
34			`#include "scsi.h"`
35
36			`#ifndef NULL`
37			`#define NULL 0L`
38			`#endif`
39
40			`#define HOSTS_C`
41
42			`#include "hosts.h"`
43
44			`#ifdef CONFIG_A3000_SCSI`
45			`#include "a3000.h"`
46			`#endif`
47
48			`#ifdef CONFIG_A2091_SCSI`
49			`#include "a2091.h"`
50			`#endif`
51
52			`#ifdef CONFIG_GVP11_SCSI`
53			`#include "gvp11.h"`
54			`#endif`
55
56			`#ifdef CONFIG_ATARI_SCSI`
57			`#include "atari_scsi.h"`
58			`#endif`
59
60			`#ifdef CONFIG_SCSI_ADVANSYS`
61			`#include "advansys.h"`
62			`#endif`
63
64			`#ifdef CONFIG_SCSI_AHA152X`
65			`#include "aha152x.h"`
66			`#endif`
67
68			`#ifdef CONFIG_SCSI_AHA1542`
69			`#include "aha1542.h"`
70			`#endif`
71
72			`#ifdef CONFIG_SCSI_AHA1740`
73			`#include "aha1740.h"`
74			`#endif`
75
76			`#ifdef CONFIG_SCSI_AIC7XXX`
77			`#include "aic7xxx.h"`
78			`#endif`
79
80			`#ifdef CONFIG_SCSI_BUSLOGIC`
81			`#include "BusLogic.h"`
82			`#endif`
83
84			`#ifdef CONFIG_SCSI_EATA_DMA`
85			`#include "eata_dma.h"`
86			`#endif`
87
88			`#ifdef CONFIG_SCSI_EATA_PIO`
89			`#include "eata_pio.h"`
90			`#endif`
91
92			`#ifdef CONFIG_SCSI_U14_34F`
93			`#include "u14-34f.h"`
94			`#endif`
95
96			`#ifdef CONFIG_SCSI_FUTURE_DOMAIN`
97			`#include "fdomain.h"`
98			`#endif`
99
100			`#ifdef CONFIG_SCSI_GENERIC_NCR5380`
101			`#include "g_NCR5380.h"`
102			`#endif`
103
104			`#ifdef CONFIG_SCSI_IN2000`
105			`#include "in2000.h"`
106			`#endif`
107
108			`#ifdef CONFIG_SCSI_PAS16`
109			`#include "pas16.h"`
110			`#endif`
111
112			`#ifdef CONFIG_SCSI_QLOGIC_FAS`
113			`#include "qlogicfas.h"`
114			`#endif`
115
116			`#ifdef CONFIG_SCSI_QLOGIC_ISP`
117			`#include "qlogicisp.h"`
118			`#endif`
119
120			`#ifdef CONFIG_SCSI_SEAGATE`
121			`#include "seagate.h"`
122			`#endif`
123
124			`#ifdef CONFIG_SCSI_T128`
125			`#include "t128.h"`
126			`#endif`
127
128			`#ifdef CONFIG_SCSI_DTC3280`
129			`#include "dtc.h"`
130			`#endif`
131
132			`#ifdef CONFIG_SCSI_NCR53C7xx`
133			`#include "53c7,8xx.h"`
134			`#endif`
135
136			`#ifdef CONFIG_SCSI_NCR53C8XX`
137			`#include "ncr53c8xx.h"`
138			`#endif`
139
140			`#ifdef CONFIG_SCSI_ULTRASTOR`
141			`#include "ultrastor.h"`
142			`#endif`
143
144			`#ifdef CONFIG_SCSI_7000FASST`
145			`#include "wd7000.h"`
146			`#endif`
147
148			`#ifdef CONFIG_SCSI_EATA`
149			`#include "eata.h"`
150			`#endif`
151
152			`#ifdef CONFIG_SCSI_NCR53C406A`
153			`#include "NCR53c406a.h"`
154			`#endif`
155
156			`#ifdef CONFIG_SCSI_SYM53C416`
157			`#include "sym53c416.h"`
158			`#endif`
159
160			`#ifdef CONFIG_SCSI_DC390T`
161			`#include "dc390.h"`
162			`#endif`
163
164			`#ifdef CONFIG_SCSI_AM53C974`
165			`#include "AM53C974.h"`
166			`#endif`
167
168			`#ifdef CONFIG_SCSI_MEGARAID`
169			`#include "megaraid.h"`
170			`#endif`
171
172			`#ifdef CONFIG_SCSI_PPA`
173			`#include "ppa.h"`
174			`#endif`
175
176			`#ifdef CONFIG_SCSI_ACARD`
177			`#include "atp870u.h"`
178			`#endif`
179
180			`#ifdef CONFIG_SCSI_SUNESP`
181			`#include "esp.h"`
182			`#endif`
183
184			`#ifdef CONFIG_BLK_DEV_IDESCSI`
185			`#include "ide-scsi.h"`
186			`#endif`
187
188			`#ifdef CONFIG_SCSI_GDTH`
189			`#include "gdth.h"`
190			`#endif`
191
192			`#ifdef CONFIG_SCSI_INITIO`
193			`#include "ini9100u.h"`
194			`#endif`
195
196			`#ifdef CONFIG_SCSI_TC2550`
197			`#include "tripace.h"`
198			`#endif`
199
200			`#ifdef CONFIG_SCSI_INIA100`
201			`#include "inia100.h"`
202			`#endif`
203
204			`#ifdef CONFIG_SCSI_PCI2000`
205			`#include "pci2000.h"`
206			`#endif`
207
208			`#ifdef CONFIG_SCSI_PCI2220I`
209			`#include "pci2220i.h"`
210			`#endif`
211
212			`#ifdef CONFIG_SCSI_PSI240I`
213			`#include "psi240i.h"`
214			`#endif`
215
216			`#ifdef CONFIG_SCSI_DEBUG`
217			`#include "scsi_debug.h"`
218			`#endif`
219
220
221			`/*`
222			`static const char RCSid[] = "$Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/uclinux/uClinux-2.0.x/drivers/scsi/hosts.c,v 1.1.1.1 2001-09-10 07:44:33 simons Exp $";`
223			`*/`
224
225			`/*`
226			`* The scsi host entries should be in the order you wish the`
227			`* cards to be detected. A driver may appear more than once IFF`
228			`* it can deal with being detected (and therefore initialized)`
229			`* with more than one simultaneous host number, can handle being`
230			`* reentrant, etc.`
231			`*`
232			`* They may appear in any order, as each SCSI host is told which host`
233			`* number it is during detection.`
234			`*/`
235
236			`/* This is a placeholder for controllers that are not configured into`
237			`* the system - we do this to ensure that the controller numbering is`
238			`* always consistent, no matter how the kernel is configured. */`
239
240			`#define NO_CONTROLLER {NULL, NULL, NULL, NULL, NULL, NULL, NULL, \`
241			`NULL, NULL, 0, 0, 0, 0, 0, 0}`
242
243			`/*`
244			`* When figure is run, we don't want to link to any object code. Since`
245			`* the macro for each host will contain function pointers, we cannot`
246			`* use it and instead must use a "blank" that does no such`
247			`* idiocy.`
248			`*/`
249
250			`Scsi_Host_Template * scsi_hosts = NULL;`
251
252			`static Scsi_Host_Template builtin_scsi_hosts[] =`
253			`{`
254			`#ifdef CONFIG_AMIGA`
255			`#ifdef CONFIG_A3000_SCSI`
256			`A3000_SCSI,`
257			`#endif`
258			`#ifdef CONFIG_A2091_SCSI`
259			`A2091_SCSI,`
260			`#endif`
261			`#ifdef CONFIG_GVP11_SCSI`
262			`GVP11_SCSI,`
263			`#endif`
264			`#endif`
265
266			`#ifdef CONFIG_ATARI`
267			`#ifdef CONFIG_ATARI_SCSI`
268			`ATARI_SCSI,`
269			`#endif`
270			`#endif`
271
272			`#ifdef CONFIG_SCSI_ADVANSYS`
273			`ADVANSYS,`
274			`#endif`
275			`/* BusLogic must come before aha1542.c */`
276			`#ifdef CONFIG_SCSI_BUSLOGIC`
277			`BUSLOGIC,`
278			`#endif`
279			`#ifdef CONFIG_SCSI_U14_34F`
280			`ULTRASTOR_14_34F,`
281			`#endif`
282			`#ifdef CONFIG_SCSI_ULTRASTOR`
283			`ULTRASTOR_14F,`
284			`#endif`
285			`#ifdef CONFIG_SCSI_AHA152X`
286			`AHA152X,`
287			`#endif`
288			`#ifdef CONFIG_SCSI_AHA1542`
289			`AHA1542,`
290			`#endif`
291			`#ifdef CONFIG_SCSI_AHA1740`
292			`AHA1740,`
293			`#endif`
294			`#ifdef CONFIG_SCSI_AIC7XXX`
295			`AIC7XXX,`
296			`#endif`
297			`#ifdef CONFIG_SCSI_FUTURE_DOMAIN`
298			`FDOMAIN_16X0,`
299			`#endif`
300			`#ifdef CONFIG_SCSI_IN2000`
301			`IN2000,`
302			`#endif`
303			`#ifdef CONFIG_SCSI_GENERIC_NCR5380`
304			`GENERIC_NCR5380,`
305			`#endif`
306			`#ifdef CONFIG_SCSI_NCR53C406A /* 53C406A should come before QLOGIC */`
307			`NCR53c406a,`
308			`#endif`
309			`#ifdef CONFIG_SCSI_SYM53C416`
310			`SYM53C416,`
311			`#endif`
312			`#ifdef CONFIG_SCSI_QLOGIC_FAS`
313			`QLOGICFAS,`
314			`#endif`
315			`#ifdef CONFIG_SCSI_QLOGIC_ISP`
316			`QLOGICISP,`
317			`#endif`
318			`#ifdef CONFIG_SCSI_PAS16`
319			`MV_PAS16,`
320			`#endif`
321			`#ifdef CONFIG_SCSI_SEAGATE`
322			`SEAGATE_ST0X,`
323			`#endif`
324			`#ifdef CONFIG_SCSI_T128`
325			`TRANTOR_T128,`
326			`#endif`
327			`#ifdef CONFIG_SCSI_DTC3280`
328			`DTC3x80,`
329			`#endif`
330			`#ifdef CONFIG_SCSI_DC390T`
331			`DC390_T,`
332			`#endif`
333			`#ifdef CONFIG_SCSI_NCR53C7xx`
334			`NCR53c7xx,`
335			`#endif`
336			`#ifdef CONFIG_SCSI_NCR53C8XX`
337			`NCR53C8XX,`
338			`#endif`
339			`#ifdef CONFIG_SCSI_EATA_DMA`
340			`EATA_DMA,`
341			`#endif`
342			`#ifdef CONFIG_SCSI_EATA_PIO`
343			`EATA_PIO,`
344			`#endif`
345			`#ifdef CONFIG_SCSI_7000FASST`
346			`WD7000,`
347			`#endif`
348			`#ifdef CONFIG_SCSI_EATA`
349			`EATA,`
350			`#endif`
351			`#ifdef CONFIG_SCSI_AM53C974`
352			`AM53C974,`
353			`#endif`
354			`#ifdef CONFIG_SCSI_MEGARAID`
355			`MEGARAID,`
356			`#endif`
357			`#ifdef CONFIG_SCSI_INIA100`
358			`INIA100,`
359			`#endif`
360			`#ifdef CONFIG_SCSI_PPA`
361			`PPA,`
362			`#endif`
363			`#ifdef CONFIG_SCSI_ACARD`
364			`ATP870U,`
365			`#endif`
366			`#ifdef CONFIG_SCSI_SUNESP`
367			`SCSI_SPARC_ESP,`
368			`#endif`
369			`#ifdef CONFIG_SCSI_GDTH`
370			`GDTH,`
371			`#endif`
372			`#ifdef CONFIG_SCSI_INITIO`
373			`INI9100U,`
374			`#endif`
375			`#ifdef CONFIG_SCSI_PCI2000`
376			`PCI2000,`
377			`#endif`
378			`#ifdef CONFIG_SCSI_PCI2220I`
379			`PCI2220I,`
380			`#endif`
381			`#ifdef CONFIG_SCSI_PSI240I`
382			`PSI240I,`
383			`#endif`
384			`#ifdef CONFIG_BLK_DEV_IDESCSI`
385			`IDESCSI,`
386			`#endif`
387			`#ifdef CONFIG_SCSI_DEBUG`
388			`SCSI_DEBUG,`
389			`#endif`
390			`};`
391
392			`#define MAX_SCSI_HOSTS (sizeof(builtin_scsi_hosts) / sizeof(Scsi_Host_Template))`
393
394
395			`/*`
396			`* Our semaphores and timeout counters, where size depends on`
397			`* MAX_SCSI_HOSTS here.`
398			`*/`
399
400			`struct Scsi_Host * scsi_hostlist = NULL;`
401			`struct Scsi_Device_Template * scsi_devicelist = NULL;`
402
403			`int max_scsi_hosts = 0;`
404			`int next_scsi_host = 0;`
405
406			`void`
407			`scsi_unregister(struct Scsi_Host * sh){`
408			`struct Scsi_Host * shpnt;`
409
410			`if(scsi_hostlist == sh)`
411			`scsi_hostlist = sh->next;`
412			`else {`
413			`shpnt = scsi_hostlist;`
414			`while(shpnt->next != sh) shpnt = shpnt->next;`
415			`shpnt->next = shpnt->next->next;`
416			`}`
417
418			`/* If we are removing the last host registered, it is safe to reuse`
419			`* its host number (this avoids "holes" at boot time) (DB)`
420			`* It is also safe to reuse those of numbers directly below which have`
421			`* been released earlier (to avoid some holes in numbering).`
422			`*/`
423			`if(sh->host_no == max_scsi_hosts - 1) {`
424			`while(--max_scsi_hosts >= next_scsi_host) {`
425			`shpnt = scsi_hostlist;`
426			`while(shpnt && shpnt->host_no != max_scsi_hosts - 1)`
427			`shpnt = shpnt->next;`
428			`if(shpnt)`
429			`break;`
430			`}`
431			`}`
432			`next_scsi_host--;`
433			`scsi_init_free((char *) sh, sizeof(struct Scsi_Host) + sh->extra_bytes);`
434			`}`
435
436			`/* We call this when we come across a new host adapter. We only do this`
437			`* once we are 100% sure that we want to use this host adapter - it is a`
438			`* pain to reverse this, so we try to avoid it`
439			`*/`
440
441			`struct Scsi_Host * scsi_register(Scsi_Host_Template * tpnt, int j){`
442			`struct Scsi_Host * retval, *shpnt;`
443			`retval = (struct Scsi_Host *)scsi_init_malloc(sizeof(struct Scsi_Host) + j,`
444			`(tpnt->unchecked_isa_dma && j ? GFP_DMA : 0) \| GFP_ATOMIC);`
445			`retval->host_busy = 0;`
446			`retval->block = NULL;`
447			`retval->wish_block = 0;`
448			`if(j > 0xffff) panic("Too many extra bytes requested\n");`
449			`retval->extra_bytes = j;`
450			`retval->loaded_as_module = scsi_loadable_module_flag;`
451			`retval->host_no = max_scsi_hosts++; /* never reuse host_no (DB) */`
452			`next_scsi_host++;`
453			`retval->host_queue = NULL;`
454			`retval->host_wait = NULL;`
455			`retval->last_reset = 0;`
456			`retval->irq = 0;`
457			`retval->dma_channel = 0xff;`
458
459			`/* These three are default values which can be overridden */`
460			`retval->max_channel = 0;`
461			`retval->max_id = 8;`
462			`retval->max_lun = 8;`
463
464			`retval->unique_id = 0;`
465			`retval->io_port = 0;`
466			`retval->hostt = tpnt;`
467			`retval->next = NULL;`
468			`#ifdef DEBUG`
469			`printk("Register %x %x: %d\n", (int)retval, (int)retval->hostt, j);`
470			`#endif`
471
472			`/* The next six are the default values which can be overridden`
473			`* if need be */`
474			`retval->this_id = tpnt->this_id;`
475			`retval->can_queue = tpnt->can_queue;`
476			`retval->sg_tablesize = tpnt->sg_tablesize;`
477			`retval->cmd_per_lun = tpnt->cmd_per_lun;`
478			`retval->unchecked_isa_dma = tpnt->unchecked_isa_dma;`
479			`retval->use_clustering = tpnt->use_clustering;`
480
481			`retval->select_queue_depths = NULL;`
482
483			`if(!scsi_hostlist)`
484			`scsi_hostlist = retval;`
485			`else`
486			`{`
487			`shpnt = scsi_hostlist;`
488			`while(shpnt->next) shpnt = shpnt->next;`
489			`shpnt->next = retval;`
490			`}`
491
492			`return retval;`
493			`}`
494
495			`int`
496			`scsi_register_device(struct Scsi_Device_Template * sdpnt)`
497			`{`
498			`if(sdpnt->next) panic("Device already registered");`
499			`sdpnt->next = scsi_devicelist;`
500			`scsi_devicelist = sdpnt;`
501			`return 0;`
502			`}`
503
504			`unsigned int scsi_init()`
505			`{`
506			`static int called = 0;`
507			`int i, pcount;`
508			`Scsi_Host_Template * tpnt;`
509			`struct Scsi_Host * shpnt;`
510			`const char * name;`
511
512			`if(called) return 0;`
513
514			`called = 1;`
515			`for (tpnt = &builtin_scsi_hosts[0], i = 0; i < MAX_SCSI_HOSTS; ++i, tpnt++)`
516			`{`
517			`/*`
518			`* Initialize our semaphores. -1 is interpreted to mean`
519			`* "inactive" - where as 0 will indicate a time out condition.`
520			`*/`
521
522			`pcount = next_scsi_host;`
523			`if ((tpnt->detect) &&`
524			`(tpnt->present =`
525			`tpnt->detect(tpnt)))`
526			`{`
527			`/* The only time this should come up is when people use`
528			`* some kind of patched driver of some kind or another. */`
529			`if(pcount == next_scsi_host) {`
530			`if(tpnt->present > 1)`
531			`panic("Failure to register low-level scsi driver");`
532			`/* The low-level driver failed to register a driver. We`
533			`* can do this now. */`
534			`scsi_register(tpnt,0);`
535			`}`
536			`tpnt->next = scsi_hosts;`
537			`scsi_hosts = tpnt;`
538
539			`/* Add the driver to /proc/scsi */`
540			`#if CONFIG_PROC_FS`
541			`build_proc_dir_entries(tpnt);`
542			`#endif`
543			`}`
544			`}`
545
546			`for(shpnt=scsi_hostlist; shpnt; shpnt = shpnt->next)`
547			`{`
548			`if(shpnt->hostt->info)`
549			`name = shpnt->hostt->info(shpnt);`
550			`else`
551			`name = shpnt->hostt->name;`
552			`printk ("scsi%d : %s\n", /* And print a little message */`
553			`shpnt->host_no, name);`
554			`}`
555
556			`printk ("scsi : %d host%s.\n", next_scsi_host,`
557			`(next_scsi_host == 1) ? "" : "s");`
558
559			`scsi_make_blocked_list();`
560
561			`/* Now attach the high level drivers */`
562			`#ifdef CONFIG_BLK_DEV_SD`
563			`scsi_register_device(&sd_template);`
564			`#endif`
565			`#ifdef CONFIG_BLK_DEV_SR`
566			`scsi_register_device(&sr_template);`
567			`#endif`
568			`#ifdef CONFIG_CHR_DEV_ST`
569			`scsi_register_device(&st_template);`
570			`#endif`
571			`#ifdef CONFIG_CHR_DEV_SG`
572			`scsi_register_device(&sg_template);`
573			`#endif`
574
575			`#if 0`
576			`max_scsi_hosts = next_scsi_host;`
577			`#endif`
578			`return 0;`
579			`}`
580
581			`/*`
582			`* Overrides for Emacs so that we follow Linus's tabbing style.`
583			`* Emacs will notice this stuff at the end of the file and automatically`
584			`* adjust the settings for this buffer only. This must remain at the end`
585			`* of the file.`
586			`* ---------------------------------------------------------------------------`
587			`* Local variables:`
588			`* c-indent-level: 4`
589			`* c-brace-imaginary-offset: 0`
590			`* c-brace-offset: -4`
591			`* c-argdecl-indent: 4`
592			`* c-label-offset: -4`
593			`* c-continued-statement-offset: 4`
594			`* c-continued-brace-offset: 0`
595			`* indent-tabs-mode: nil`
596			`* tab-width: 8`
597			`* End:`
598			`*/`