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332 palkovsky 1
/*
2
 * Copyright (C) 2005 Ondrej Palkovsky
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
#include <arch/drivers/arc.h>
30
#include <arch/mm/page.h>
31
#include <print.h>
32
#include <arch.h>
33
#include <arch/byteorder.h>
573 palkovsky 34
#include <arch/mm/frame.h>
35
#include <mm/frame.h>
575 palkovsky 36
#include <interrupt.h>
605 palkovsky 37
#include <align.h>
606 palkovsky 38
#include <console/console.h>
852 palkovsky 39
#include <console/kconsole.h>
40
#include <console/cmd.h>
853 palkovsky 41
#include <mm/slab.h>
332 palkovsky 42
 
43
/* This is a good joke, SGI HAS different types than NT bioses... */
44
/* Here is the SGI type */
45
static char *basetypes[] = {
46
    "ExceptionBlock",
47
    "SystemParameterBlock",
48
    "FreeContiguous",
49
    "FreeMemory",
50
    "BadMemory",
51
    "LoadedProgram",
52
    "FirmwareTemporary",
53
    "FirmwarePermanent"
54
};
55
 
344 palkovsky 56
static char *ctypes[] = {
57
    "ARC_type",
58
    "CPU_type",
59
    "FPU_type",
60
    "PrimaryICache",
61
    "PrimaryDCache",
62
    "SecondaryICache",
63
    "SecondaryDCache",
64
    "SecondaryCache",
65
    "Memory",
66
    "EISAAdapter",
67
    "TCAdapter",
68
    "SCSIAdapter",
69
    "DTIAdapter",
70
    "MultiFunctionAdapter",
71
    "DiskController",
72
    "TapeController",
73
    "CDROMController",
74
    "WORMController",
75
    "SerialController",
76
    "NetworkController",
77
    "DisplayController",
78
    "ParallelController",
79
    "PointerController",
80
    "KeyboardController",
81
    "AudioController",
82
    "OtherController",
83
    "DiskPeripheral",
84
    "FloppyDiskPeripheral",
85
    "TapePeripheral",
86
    "ModemPeripheral",
87
    "MonitorPeripheral",
88
    "PrinterPeripheral",
89
    "PointerPeripheral",
90
    "KeyboardPeripheral",
91
    "TerminalPeripheral",
92
    "OtherPeripheral",
93
    "LinePeripheral",
94
    "NetworkPeripheral"
95
    "OtherPeripheral",
96
    "XTalkAdapter",
97
    "PCIAdapter",
98
    "GIOAdapter",
99
    "TPUAdapter",
100
    "Anonymous"
101
};
102
 
332 palkovsky 103
static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000);
104
static arc_func_vector_t *arc_entry;
105
 
106
 
575 palkovsky 107
static void arc_putchar(char ch);
332 palkovsky 108
 
109
/** Return true if ARC is available */
110
int arc_enabled(void)
111
{
112
    return sbp != NULL;
113
}
114
 
853 palkovsky 115
 
116
/** Print configuration data that ARC reports about component */
117
static void arc_print_confdata(arc_component *c)
118
{
119
    cm_resource_list *configdata;
120
    int i;
121
 
122
    if (!c->configdatasize)
123
        return; /* No configuration data */
124
 
125
    configdata = malloc(c->configdatasize, 0);
126
 
127
    if (arc_entry->getconfigurationdata(configdata, c)) {
128
        free(configdata);
129
        return;
130
    }
131
    /* Does not seem to return meaningful data, don't use now */
132
    free(configdata);
133
    return;
134
 
135
    for (i=0; i < configdata->count; i++) {
136
        switch (configdata->descr[i].type) {
137
        case CmResourceTypePort:
1221 decky 138
            printf("Port: %p-size:%d ",
853 palkovsky 139
                   (__address)configdata->descr[i].u.port.start,
140
                   configdata->descr[i].u.port.length);
141
            break;
142
        case CmResourceTypeInterrupt:
143
            printf("Irq: level(%d) vector(%d) ",
144
                   configdata->descr[i].u.interrupt.level,
145
                   configdata->descr[i].u.interrupt.vector);
146
            break;
147
        case CmResourceTypeMemory:
1221 decky 148
            printf("Memory: %p-size:%d ",
853 palkovsky 149
                   (__address)configdata->descr[i].u.port.start,
150
                   configdata->descr[i].u.port.length);
151
            break;
152
        default:
153
            break;
154
        }
155
    }
156
 
157
    free(configdata);
158
}
159
 
160
/** Print information about component */
344 palkovsky 161
static void arc_print_component(arc_component *c)
162
{
163
    int i;
164
 
165
    printf("%s: ",ctypes[c->type]);
166
    for (i=0;i < c->identifier_len;i++)
853 palkovsky 167
        printf("%c",c->identifier[i]);
168
 
169
    printf(" ");
170
    arc_print_confdata(c);
171
    printf("\n");
344 palkovsky 172
}
173
 
853 palkovsky 174
/**
175
 * Read from ARC bios configuration data and print it
176
 */
177
static int cmd_arc_print_devices(cmd_arg_t *argv)
344 palkovsky 178
{
179
    arc_component *c,*next;
180
 
181
    c = arc_entry->getchild(NULL);
182
    while (c) {
183
        arc_print_component(c);
184
        next = arc_entry->getchild(c);
185
        while (!next) {
186
            next = arc_entry->getpeer(c);
187
            if (!next)
188
                c = arc_entry->getparent(c);
189
            if (!c)
853 palkovsky 190
                return 0;
344 palkovsky 191
        }
192
        c = next;
193
    }
853 palkovsky 194
    return 1;
344 palkovsky 195
}
853 palkovsky 196
static cmd_info_t devlist_info = {
197
    .name = "arcdevlist",
198
    .description = "Print arc device list",
199
    .func = cmd_arc_print_devices,
200
    .argc = 0
201
};
344 palkovsky 202
 
853 palkovsky 203
 
204
/** Read from arc bios memory map and print it
205
 *
206
 */
207
static int cmd_arc_print_memmap(cmd_arg_t *argv)
332 palkovsky 208
{
209
    arc_memdescriptor_t *desc;
210
 
211
    printf("Memory map:\n");
212
 
213
    desc = arc_entry->getmemorydescriptor(NULL);
214
    while (desc) {
1221 decky 215
        printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],
573 palkovsky 216
               desc->basepage * ARC_FRAME,
852 palkovsky 217
               desc->basepage * ARC_FRAME,
573 palkovsky 218
               desc->basecount*ARC_FRAME/1024);
332 palkovsky 219
        desc = arc_entry->getmemorydescriptor(desc);
220
    }
853 palkovsky 221
    return 1;
332 palkovsky 222
}
853 palkovsky 223
static cmd_info_t memmap_info = {
224
    .name = "arcmemmap",
225
    .description = "Print arc memory map",
226
    .func = cmd_arc_print_memmap,
227
    .argc = 0
228
};
332 palkovsky 229
 
230
/** Print charactor to console */
575 palkovsky 231
static void arc_putchar(char ch)
332 palkovsky 232
{
233
    __u32 cnt;
413 jermar 234
    ipl_t ipl;
332 palkovsky 235
 
236
    /* TODO: Should be spinlock? */
413 jermar 237
    ipl = interrupts_disable();
332 palkovsky 238
    arc_entry->write(1, &ch, 1, &cnt);
413 jermar 239
    interrupts_restore(ipl);
332 palkovsky 240
 
241
}
567 palkovsky 242
 
852 palkovsky 243
static int cmd_reboot(cmd_arg_t *argv)
244
{
245
    arc_entry->reboot();
246
    return 0;
247
}
248
static cmd_info_t reboot_info = {
249
    .name = "reboot",
250
    .description = "Reboot computer",
251
    .func = cmd_reboot,
252
    .argc = 0
253
};
254
 
575 palkovsky 255
/** Initialize ARC structure
256
 *
257
 * @return 0 - ARC OK, -1 - ARC does not exist
258
 */
259
int arc_init(void)
260
{
261
    if (sbp->signature != ARC_MAGIC) {
262
        sbp = NULL;
263
        return -1;
264
    }
265
    arc_entry = sbp->firmwarevector;
266
 
267
    arc_putchar('A');
268
    arc_putchar('R');
269
    arc_putchar('C');
270
    arc_putchar('\n');
625 palkovsky 271
 
852 palkovsky 272
    /* Add command for resetting the computer */
273
    cmd_initialize(&reboot_info);
274
    cmd_register(&reboot_info);
853 palkovsky 275
    cmd_initialize(&memmap_info);
276
    cmd_register(&memmap_info);
277
    cmd_initialize(&devlist_info);
278
    cmd_register(&devlist_info);
852 palkovsky 279
 
625 palkovsky 280
    return 0;
575 palkovsky 281
}
282
 
577 palkovsky 283
static bool kbd_polling_enabled;
575 palkovsky 284
static chardev_t console;
285
 
567 palkovsky 286
/** Try to get character, return character or -1 if not available */
575 palkovsky 287
static void arc_keyboard_poll(void)
567 palkovsky 288
{
289
    char ch;
290
    __u32 count;
291
    long result;
575 palkovsky 292
 
293
    if (! kbd_polling_enabled)
294
        return;
567 palkovsky 295
 
296
    if (arc_entry->getreadstatus(0))
575 palkovsky 297
        return;
567 palkovsky 298
    result = arc_entry->read(0, &ch, 1, &count);
299
    if (result || count!=1) {
575 palkovsky 300
        return;
567 palkovsky 301
    }
302
    if (ch == '\r')
575 palkovsky 303
        ch = '\n';
588 palkovsky 304
    if (ch == 0x7f)
305
        ch = '\b';
306
 
575 palkovsky 307
    chardev_push_character(&console, ch);
567 palkovsky 308
}
573 palkovsky 309
 
610 palkovsky 310
static char arc_read(chardev_t *dev)
311
{
312
    char ch;
313
    __u32 count;
314
    long result;
315
 
316
    result = arc_entry->read(0, &ch, 1, &count);
317
    if (result || count!=1) {
318
        printf("Error reading from ARC keyboard.\n");
319
        cpu_halt();
320
    }
321
    if (ch == '\r')
322
        return '\n';
323
    if (ch == 0x7f)
324
        return '\b';
325
    return ch;
326
}
327
 
575 palkovsky 328
static void arc_write(chardev_t *dev, const char ch)
329
{
330
    arc_putchar(ch);
331
}
332
 
333
static void arc_enable(chardev_t *dev)
334
{
577 palkovsky 335
    kbd_polling_enabled = true;
575 palkovsky 336
}
337
 
338
static void arc_disable(chardev_t *dev)
339
{
577 palkovsky 340
    kbd_polling_enabled = false;
575 palkovsky 341
}
342
 
343
static chardev_operations_t arc_ops = {
344
    .resume = arc_enable,
345
    .suspend = arc_disable,
610 palkovsky 346
    .write = arc_write,
347
    .read = arc_read
575 palkovsky 348
};
349
 
350
iroutine old_timer;
351
/** Do polling on timer interrupt */
958 jermar 352
static void timer_replace(int n, istate_t *istate)
575 palkovsky 353
{
354
    arc_keyboard_poll();
958 jermar 355
    old_timer(n, istate);
575 palkovsky 356
    arc_keyboard_poll();
357
}
358
 
606 palkovsky 359
void arc_console(void)
575 palkovsky 360
{
577 palkovsky 361
    kbd_polling_enabled = true;
575 palkovsky 362
 
363
    chardev_initialize("arc_console", &console, &arc_ops);
590 palkovsky 364
    old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);
606 palkovsky 365
    stdin = &console;
366
    stdout = &console;
575 palkovsky 367
}
368
 
573 palkovsky 369
/* Initialize frame zones from ARC firmware.
370
 * In the future we may use even the FirmwareTemporary regions,
371
 * currently we use the FreeMemory (what about the LoadedProgram?)
372
 */
373
void arc_frame_init(void)
374
{
375
    arc_memdescriptor_t *desc;
376
    int total = 0;
605 palkovsky 377
    __address base;
378
    size_t basesize;
573 palkovsky 379
 
380
    desc = arc_entry->getmemorydescriptor(NULL);
381
    while (desc) {
382
        if (desc->type == FreeMemory ||
383
            desc->type == FreeContiguous) {
605 palkovsky 384
            base = desc->basepage*ARC_FRAME;
385
            basesize = desc->basecount*ARC_FRAME;
386
 
387
            if (base % FRAME_SIZE ) {
388
                basesize -= FRAME_SIZE - (base % FRAME_SIZE);
389
                base = ALIGN_UP(base, FRAME_SIZE);
390
            }
391
            basesize = ALIGN_DOWN(basesize, FRAME_SIZE);
392
 
393
            total += basesize;
814 palkovsky 394
 
852 palkovsky 395
            zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),
396
                    ADDR2PFN(base), 0);
573 palkovsky 397
        }
398
        desc = arc_entry->getmemorydescriptor(desc);
399
    }
400
 
401
    config.memory_size = total;
402
}
403