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1117 serge 1
/*
2
 * Copyright 2008 Advanced Micro Devices, Inc.
3
 *
4
 * Permission is hereby granted, free of charge, to any person obtaining a
5
 * copy of this software and associated documentation files (the "Software"),
6
 * to deal in the Software without restriction, including without limitation
7
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8
 * and/or sell copies of the Software, and to permit persons to whom the
9
 * Software is furnished to do so, subject to the following conditions:
10
 *
11
 * The above copyright notice and this permission notice shall be included in
12
 * all copies or substantial portions of the Software.
13
 *
14
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20
 * OTHER DEALINGS IN THE SOFTWARE.
21
 *
22
 * Author: Stanislaw Skowronek
23
 */
24
 
1179 serge 25
#include 
26
#include 
1117 serge 27
 
28
#define ATOM_DEBUG
29
 
30
#include "atom.h"
31
#include "atom-names.h"
32
#include "atom-bits.h"
33
 
34
#define ATOM_COND_ABOVE		0
35
#define ATOM_COND_ABOVEOREQUAL	1
36
#define ATOM_COND_ALWAYS	2
37
#define ATOM_COND_BELOW		3
38
#define ATOM_COND_BELOWOREQUAL	4
39
#define ATOM_COND_EQUAL		5
40
#define ATOM_COND_NOTEQUAL	6
41
 
42
#define ATOM_PORT_ATI	0
43
#define ATOM_PORT_PCI	1
44
#define ATOM_PORT_SYSIO	2
45
 
46
#define ATOM_UNIT_MICROSEC	0
47
#define ATOM_UNIT_MILLISEC	1
48
 
49
#define PLL_INDEX	2
50
#define PLL_DATA	3
51
 
52
typedef struct {
53
	struct atom_context *ctx;
54
 
55
	uint32_t *ps, *ws;
56
	int ps_shift;
57
	uint16_t start;
58
} atom_exec_context;
59
 
60
int atom_debug = 0;
1403 serge 61
static void atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
1117 serge 62
void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
63
 
64
static uint32_t atom_arg_mask[8] =
65
    { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
66
0xFF000000 };
67
static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
68
 
69
static int atom_dst_to_src[8][4] = {
70
	/* translate destination alignment field to the source alignment encoding */
71
	{0, 0, 0, 0},
72
	{1, 2, 3, 0},
73
	{1, 2, 3, 0},
74
	{1, 2, 3, 0},
75
	{4, 5, 6, 7},
76
	{4, 5, 6, 7},
77
	{4, 5, 6, 7},
78
	{4, 5, 6, 7},
79
};
80
static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
81
 
82
static int debug_depth = 0;
83
#ifdef ATOM_DEBUG
84
static void debug_print_spaces(int n)
85
{
86
	while (n--)
87
		printk("   ");
88
}
89
 
90
#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
91
#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
92
#else
93
#define DEBUG(...) do { } while (0)
94
#define SDEBUG(...) do { } while (0)
95
#endif
96
 
97
static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
98
				 uint32_t index, uint32_t data)
99
{
100
	uint32_t temp = 0xCDCDCDCD;
101
	while (1)
102
		switch (CU8(base)) {
103
		case ATOM_IIO_NOP:
104
			base++;
105
			break;
106
		case ATOM_IIO_READ:
107
			temp = ctx->card->reg_read(ctx->card, CU16(base + 1));
108
			base += 3;
109
			break;
110
		case ATOM_IIO_WRITE:
1313 serge 111
			(void)ctx->card->reg_read(ctx->card, CU16(base + 1));
1117 serge 112
			ctx->card->reg_write(ctx->card, CU16(base + 1), temp);
113
			base += 3;
114
			break;
115
		case ATOM_IIO_CLEAR:
116
			temp &=
117
			    ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
118
			      CU8(base + 2));
119
			base += 3;
120
			break;
121
		case ATOM_IIO_SET:
122
			temp |=
123
			    (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
124
									2);
125
			base += 3;
126
			break;
127
		case ATOM_IIO_MOVE_INDEX:
128
			temp &=
129
			    ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
130
			      CU8(base + 2));
131
			temp |=
132
			    ((index >> CU8(base + 2)) &
133
			     (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
134
									  3);
135
			base += 4;
136
			break;
137
		case ATOM_IIO_MOVE_DATA:
138
			temp &=
139
			    ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
140
			      CU8(base + 2));
141
			temp |=
142
			    ((data >> CU8(base + 2)) &
143
			     (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
144
									  3);
145
			base += 4;
146
			break;
147
		case ATOM_IIO_MOVE_ATTR:
148
			temp &=
149
			    ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
150
			      CU8(base + 2));
151
			temp |=
152
			    ((ctx->
153
			      io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
154
									  CU8
155
									  (base
156
									   +
157
									   1))))
158
			    << CU8(base + 3);
159
			base += 4;
160
			break;
161
		case ATOM_IIO_END:
162
			return temp;
163
		default:
164
			printk(KERN_INFO "Unknown IIO opcode.\n");
165
			return 0;
166
		}
167
}
168
 
169
static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
170
				 int *ptr, uint32_t *saved, int print)
171
{
172
	uint32_t idx, val = 0xCDCDCDCD, align, arg;
173
	struct atom_context *gctx = ctx->ctx;
174
	arg = attr & 7;
175
	align = (attr >> 3) & 7;
176
	switch (arg) {
177
	case ATOM_ARG_REG:
178
		idx = U16(*ptr);
179
		(*ptr) += 2;
180
		if (print)
181
			DEBUG("REG[0x%04X]", idx);
182
		idx += gctx->reg_block;
183
		switch (gctx->io_mode) {
184
		case ATOM_IO_MM:
185
			val = gctx->card->reg_read(gctx->card, idx);
186
			break;
187
		case ATOM_IO_PCI:
188
			printk(KERN_INFO
189
			       "PCI registers are not implemented.\n");
190
			return 0;
191
		case ATOM_IO_SYSIO:
192
			printk(KERN_INFO
193
			       "SYSIO registers are not implemented.\n");
194
			return 0;
195
		default:
196
			if (!(gctx->io_mode & 0x80)) {
197
				printk(KERN_INFO "Bad IO mode.\n");
198
				return 0;
199
			}
200
			if (!gctx->iio[gctx->io_mode & 0x7F]) {
201
				printk(KERN_INFO
202
				       "Undefined indirect IO read method %d.\n",
203
				       gctx->io_mode & 0x7F);
204
				return 0;
205
			}
206
			val =
207
			    atom_iio_execute(gctx,
208
					     gctx->iio[gctx->io_mode & 0x7F],
209
					     idx, 0);
210
		}
211
		break;
212
	case ATOM_ARG_PS:
213
		idx = U8(*ptr);
214
		(*ptr)++;
215
		val = le32_to_cpu(ctx->ps[idx]);
216
		if (print)
217
			DEBUG("PS[0x%02X,0x%04X]", idx, val);
218
		break;
219
	case ATOM_ARG_WS:
220
		idx = U8(*ptr);
221
		(*ptr)++;
222
		if (print)
223
			DEBUG("WS[0x%02X]", idx);
224
		switch (idx) {
225
		case ATOM_WS_QUOTIENT:
226
			val = gctx->divmul[0];
227
			break;
228
		case ATOM_WS_REMAINDER:
229
			val = gctx->divmul[1];
230
			break;
231
		case ATOM_WS_DATAPTR:
232
			val = gctx->data_block;
233
			break;
234
		case ATOM_WS_SHIFT:
235
			val = gctx->shift;
236
			break;
237
		case ATOM_WS_OR_MASK:
238
			val = 1 << gctx->shift;
239
			break;
240
		case ATOM_WS_AND_MASK:
241
			val = ~(1 << gctx->shift);
242
			break;
243
		case ATOM_WS_FB_WINDOW:
244
			val = gctx->fb_base;
245
			break;
246
		case ATOM_WS_ATTRIBUTES:
247
			val = gctx->io_attr;
248
			break;
1403 serge 249
		case ATOM_WS_REGPTR:
250
			val = gctx->reg_block;
251
			break;
1117 serge 252
		default:
253
			val = ctx->ws[idx];
254
		}
255
		break;
256
	case ATOM_ARG_ID:
257
		idx = U16(*ptr);
258
		(*ptr) += 2;
259
		if (print) {
260
			if (gctx->data_block)
261
				DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
262
			else
263
				DEBUG("ID[0x%04X]", idx);
264
		}
265
		val = U32(idx + gctx->data_block);
266
		break;
267
	case ATOM_ARG_FB:
268
		idx = U8(*ptr);
269
		(*ptr)++;
1321 serge 270
		val = gctx->scratch[((gctx->fb_base + idx) / 4)];
1117 serge 271
		if (print)
272
			DEBUG("FB[0x%02X]", idx);
1321 serge 273
		break;
1117 serge 274
	case ATOM_ARG_IMM:
275
		switch (align) {
276
		case ATOM_SRC_DWORD:
277
			val = U32(*ptr);
278
			(*ptr) += 4;
279
			if (print)
280
				DEBUG("IMM 0x%08X\n", val);
281
			return val;
282
		case ATOM_SRC_WORD0:
283
		case ATOM_SRC_WORD8:
284
		case ATOM_SRC_WORD16:
285
			val = U16(*ptr);
286
			(*ptr) += 2;
287
			if (print)
288
				DEBUG("IMM 0x%04X\n", val);
289
			return val;
290
		case ATOM_SRC_BYTE0:
291
		case ATOM_SRC_BYTE8:
292
		case ATOM_SRC_BYTE16:
293
		case ATOM_SRC_BYTE24:
294
			val = U8(*ptr);
295
			(*ptr)++;
296
			if (print)
297
				DEBUG("IMM 0x%02X\n", val);
298
			return val;
299
		}
300
		return 0;
301
	case ATOM_ARG_PLL:
302
		idx = U8(*ptr);
303
		(*ptr)++;
304
		if (print)
305
			DEBUG("PLL[0x%02X]", idx);
306
		val = gctx->card->pll_read(gctx->card, idx);
307
		break;
308
	case ATOM_ARG_MC:
309
		idx = U8(*ptr);
310
		(*ptr)++;
311
		if (print)
312
			DEBUG("MC[0x%02X]", idx);
313
		val = gctx->card->mc_read(gctx->card, idx);
314
		break;
315
	}
316
	if (saved)
317
		*saved = val;
318
	val &= atom_arg_mask[align];
319
	val >>= atom_arg_shift[align];
320
	if (print)
321
		switch (align) {
322
		case ATOM_SRC_DWORD:
323
			DEBUG(".[31:0] -> 0x%08X\n", val);
324
			break;
325
		case ATOM_SRC_WORD0:
326
			DEBUG(".[15:0] -> 0x%04X\n", val);
327
			break;
328
		case ATOM_SRC_WORD8:
329
			DEBUG(".[23:8] -> 0x%04X\n", val);
330
			break;
331
		case ATOM_SRC_WORD16:
332
			DEBUG(".[31:16] -> 0x%04X\n", val);
333
			break;
334
		case ATOM_SRC_BYTE0:
335
			DEBUG(".[7:0] -> 0x%02X\n", val);
336
			break;
337
		case ATOM_SRC_BYTE8:
338
			DEBUG(".[15:8] -> 0x%02X\n", val);
339
			break;
340
		case ATOM_SRC_BYTE16:
341
			DEBUG(".[23:16] -> 0x%02X\n", val);
342
			break;
343
		case ATOM_SRC_BYTE24:
344
			DEBUG(".[31:24] -> 0x%02X\n", val);
345
			break;
346
		}
347
	return val;
348
}
349
 
350
static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
351
{
352
	uint32_t align = (attr >> 3) & 7, arg = attr & 7;
353
	switch (arg) {
354
	case ATOM_ARG_REG:
355
	case ATOM_ARG_ID:
356
		(*ptr) += 2;
357
		break;
358
	case ATOM_ARG_PLL:
359
	case ATOM_ARG_MC:
360
	case ATOM_ARG_PS:
361
	case ATOM_ARG_WS:
362
	case ATOM_ARG_FB:
363
		(*ptr)++;
364
		break;
365
	case ATOM_ARG_IMM:
366
		switch (align) {
367
		case ATOM_SRC_DWORD:
368
			(*ptr) += 4;
369
			return;
370
		case ATOM_SRC_WORD0:
371
		case ATOM_SRC_WORD8:
372
		case ATOM_SRC_WORD16:
373
			(*ptr) += 2;
374
			return;
375
		case ATOM_SRC_BYTE0:
376
		case ATOM_SRC_BYTE8:
377
		case ATOM_SRC_BYTE16:
378
		case ATOM_SRC_BYTE24:
379
			(*ptr)++;
380
			return;
381
		}
382
		return;
383
	}
384
}
385
 
386
static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
387
{
388
	return atom_get_src_int(ctx, attr, ptr, NULL, 1);
389
}
390
 
1403 serge 391
static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
392
{
393
	uint32_t val = 0xCDCDCDCD;
394
 
395
	switch (align) {
396
	case ATOM_SRC_DWORD:
397
		val = U32(*ptr);
398
		(*ptr) += 4;
399
		break;
400
	case ATOM_SRC_WORD0:
401
	case ATOM_SRC_WORD8:
402
	case ATOM_SRC_WORD16:
403
		val = U16(*ptr);
404
		(*ptr) += 2;
405
		break;
406
	case ATOM_SRC_BYTE0:
407
	case ATOM_SRC_BYTE8:
408
	case ATOM_SRC_BYTE16:
409
	case ATOM_SRC_BYTE24:
410
		val = U8(*ptr);
411
		(*ptr)++;
412
		break;
413
	}
414
	return val;
415
}
416
 
1117 serge 417
static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
418
			     int *ptr, uint32_t *saved, int print)
419
{
420
	return atom_get_src_int(ctx,
421
				arg | atom_dst_to_src[(attr >> 3) &
422
						      7][(attr >> 6) & 3] << 3,
423
				ptr, saved, print);
424
}
425
 
426
static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
427
{
428
	atom_skip_src_int(ctx,
429
			  arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
430
								 3] << 3, ptr);
431
}
432
 
433
static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
434
			 int *ptr, uint32_t val, uint32_t saved)
435
{
436
	uint32_t align =
437
	    atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
438
	    val, idx;
439
	struct atom_context *gctx = ctx->ctx;
440
	old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
441
	val <<= atom_arg_shift[align];
442
	val &= atom_arg_mask[align];
443
	saved &= ~atom_arg_mask[align];
444
	val |= saved;
445
	switch (arg) {
446
	case ATOM_ARG_REG:
447
		idx = U16(*ptr);
448
		(*ptr) += 2;
449
		DEBUG("REG[0x%04X]", idx);
450
		idx += gctx->reg_block;
451
		switch (gctx->io_mode) {
452
		case ATOM_IO_MM:
453
			if (idx == 0)
454
				gctx->card->reg_write(gctx->card, idx,
455
						      val << 2);
456
			else
457
				gctx->card->reg_write(gctx->card, idx, val);
458
			break;
459
		case ATOM_IO_PCI:
460
			printk(KERN_INFO
461
			       "PCI registers are not implemented.\n");
462
			return;
463
		case ATOM_IO_SYSIO:
464
			printk(KERN_INFO
465
			       "SYSIO registers are not implemented.\n");
466
			return;
467
		default:
468
			if (!(gctx->io_mode & 0x80)) {
469
				printk(KERN_INFO "Bad IO mode.\n");
470
				return;
471
			}
472
			if (!gctx->iio[gctx->io_mode & 0xFF]) {
473
				printk(KERN_INFO
474
				       "Undefined indirect IO write method %d.\n",
475
				       gctx->io_mode & 0x7F);
476
				return;
477
			}
478
			atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
479
					 idx, val);
480
		}
481
		break;
482
	case ATOM_ARG_PS:
483
		idx = U8(*ptr);
484
		(*ptr)++;
485
		DEBUG("PS[0x%02X]", idx);
486
		ctx->ps[idx] = cpu_to_le32(val);
487
		break;
488
	case ATOM_ARG_WS:
489
		idx = U8(*ptr);
490
		(*ptr)++;
491
		DEBUG("WS[0x%02X]", idx);
492
		switch (idx) {
493
		case ATOM_WS_QUOTIENT:
494
			gctx->divmul[0] = val;
495
			break;
496
		case ATOM_WS_REMAINDER:
497
			gctx->divmul[1] = val;
498
			break;
499
		case ATOM_WS_DATAPTR:
500
			gctx->data_block = val;
501
			break;
502
		case ATOM_WS_SHIFT:
503
			gctx->shift = val;
504
			break;
505
		case ATOM_WS_OR_MASK:
506
		case ATOM_WS_AND_MASK:
507
			break;
508
		case ATOM_WS_FB_WINDOW:
509
			gctx->fb_base = val;
510
			break;
511
		case ATOM_WS_ATTRIBUTES:
512
			gctx->io_attr = val;
513
			break;
1403 serge 514
		case ATOM_WS_REGPTR:
515
			gctx->reg_block = val;
516
			break;
1117 serge 517
		default:
518
			ctx->ws[idx] = val;
519
		}
520
		break;
521
	case ATOM_ARG_FB:
522
		idx = U8(*ptr);
523
		(*ptr)++;
1321 serge 524
		gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
1117 serge 525
		DEBUG("FB[0x%02X]", idx);
1321 serge 526
		break;
1117 serge 527
	case ATOM_ARG_PLL:
528
		idx = U8(*ptr);
529
		(*ptr)++;
530
		DEBUG("PLL[0x%02X]", idx);
531
		gctx->card->pll_write(gctx->card, idx, val);
532
		break;
533
	case ATOM_ARG_MC:
534
		idx = U8(*ptr);
535
		(*ptr)++;
536
		DEBUG("MC[0x%02X]", idx);
537
		gctx->card->mc_write(gctx->card, idx, val);
538
		return;
539
	}
540
	switch (align) {
541
	case ATOM_SRC_DWORD:
542
		DEBUG(".[31:0] <- 0x%08X\n", old_val);
543
		break;
544
	case ATOM_SRC_WORD0:
545
		DEBUG(".[15:0] <- 0x%04X\n", old_val);
546
		break;
547
	case ATOM_SRC_WORD8:
548
		DEBUG(".[23:8] <- 0x%04X\n", old_val);
549
		break;
550
	case ATOM_SRC_WORD16:
551
		DEBUG(".[31:16] <- 0x%04X\n", old_val);
552
		break;
553
	case ATOM_SRC_BYTE0:
554
		DEBUG(".[7:0] <- 0x%02X\n", old_val);
555
		break;
556
	case ATOM_SRC_BYTE8:
557
		DEBUG(".[15:8] <- 0x%02X\n", old_val);
558
		break;
559
	case ATOM_SRC_BYTE16:
560
		DEBUG(".[23:16] <- 0x%02X\n", old_val);
561
		break;
562
	case ATOM_SRC_BYTE24:
563
		DEBUG(".[31:24] <- 0x%02X\n", old_val);
564
		break;
565
	}
566
}
567
 
568
static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
569
{
570
	uint8_t attr = U8((*ptr)++);
571
	uint32_t dst, src, saved;
572
	int dptr = *ptr;
573
	SDEBUG("   dst: ");
574
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
575
	SDEBUG("   src: ");
576
	src = atom_get_src(ctx, attr, ptr);
577
	dst += src;
578
	SDEBUG("   dst: ");
579
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
580
}
581
 
582
static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
583
{
584
	uint8_t attr = U8((*ptr)++);
585
	uint32_t dst, src, saved;
586
	int dptr = *ptr;
587
	SDEBUG("   dst: ");
588
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
589
	SDEBUG("   src: ");
590
	src = atom_get_src(ctx, attr, ptr);
591
	dst &= src;
592
	SDEBUG("   dst: ");
593
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
594
}
595
 
596
static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
597
{
598
	printk("ATOM BIOS beeped!\n");
599
}
600
 
601
static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
602
{
603
	int idx = U8((*ptr)++);
604
	if (idx < ATOM_TABLE_NAMES_CNT)
605
		SDEBUG("   table: %d (%s)\n", idx, atom_table_names[idx]);
606
	else
607
		SDEBUG("   table: %d\n", idx);
608
	if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
1403 serge 609
		atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
1117 serge 610
}
611
 
612
static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
613
{
614
	uint8_t attr = U8((*ptr)++);
615
	uint32_t saved;
616
	int dptr = *ptr;
617
	attr &= 0x38;
618
	attr |= atom_def_dst[attr >> 3] << 6;
619
	atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
620
	SDEBUG("   dst: ");
621
	atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
622
}
623
 
624
static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
625
{
626
	uint8_t attr = U8((*ptr)++);
627
	uint32_t dst, src;
628
	SDEBUG("   src1: ");
629
	dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
630
	SDEBUG("   src2: ");
631
	src = atom_get_src(ctx, attr, ptr);
632
	ctx->ctx->cs_equal = (dst == src);
633
	ctx->ctx->cs_above = (dst > src);
634
	SDEBUG("   result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
635
	       ctx->ctx->cs_above ? "GT" : "LE");
636
}
637
 
638
static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
639
{
640
	uint8_t count = U8((*ptr)++);
641
	SDEBUG("   count: %d\n", count);
1119 serge 642
    if (arg == ATOM_UNIT_MICROSEC)
643
       udelay(count);
644
    else
645
       mdelay(count);
1117 serge 646
}
647
 
648
static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
649
{
650
	uint8_t attr = U8((*ptr)++);
651
	uint32_t dst, src;
652
	SDEBUG("   src1: ");
653
	dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
654
	SDEBUG("   src2: ");
655
	src = atom_get_src(ctx, attr, ptr);
656
	if (src != 0) {
657
		ctx->ctx->divmul[0] = dst / src;
658
		ctx->ctx->divmul[1] = dst % src;
659
	} else {
660
		ctx->ctx->divmul[0] = 0;
661
		ctx->ctx->divmul[1] = 0;
662
	}
663
}
664
 
665
static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
666
{
667
	/* functionally, a nop */
668
}
669
 
670
static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
671
{
672
	int execute = 0, target = U16(*ptr);
673
	(*ptr) += 2;
674
	switch (arg) {
675
	case ATOM_COND_ABOVE:
676
		execute = ctx->ctx->cs_above;
677
		break;
678
	case ATOM_COND_ABOVEOREQUAL:
679
		execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
680
		break;
681
	case ATOM_COND_ALWAYS:
682
		execute = 1;
683
		break;
684
	case ATOM_COND_BELOW:
685
		execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
686
		break;
687
	case ATOM_COND_BELOWOREQUAL:
688
		execute = !ctx->ctx->cs_above;
689
		break;
690
	case ATOM_COND_EQUAL:
691
		execute = ctx->ctx->cs_equal;
692
		break;
693
	case ATOM_COND_NOTEQUAL:
694
		execute = !ctx->ctx->cs_equal;
695
		break;
696
	}
697
	if (arg != ATOM_COND_ALWAYS)
698
		SDEBUG("   taken: %s\n", execute ? "yes" : "no");
699
	SDEBUG("   target: 0x%04X\n", target);
700
	if (execute)
701
		*ptr = ctx->start + target;
702
}
703
 
704
static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
705
{
706
	uint8_t attr = U8((*ptr)++);
707
	uint32_t dst, src1, src2, saved;
708
	int dptr = *ptr;
709
	SDEBUG("   dst: ");
710
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
711
	SDEBUG("   src1: ");
1403 serge 712
	src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
1117 serge 713
	SDEBUG("   src2: ");
714
	src2 = atom_get_src(ctx, attr, ptr);
715
	dst &= src1;
716
	dst |= src2;
717
	SDEBUG("   dst: ");
718
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
719
}
720
 
721
static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
722
{
723
	uint8_t attr = U8((*ptr)++);
724
	uint32_t src, saved;
725
	int dptr = *ptr;
726
	if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
727
		atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
728
	else {
729
		atom_skip_dst(ctx, arg, attr, ptr);
730
		saved = 0xCDCDCDCD;
731
	}
732
	SDEBUG("   src: ");
733
	src = atom_get_src(ctx, attr, ptr);
734
	SDEBUG("   dst: ");
735
	atom_put_dst(ctx, arg, attr, &dptr, src, saved);
736
}
737
 
738
static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
739
{
740
	uint8_t attr = U8((*ptr)++);
741
	uint32_t dst, src;
742
	SDEBUG("   src1: ");
743
	dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
744
	SDEBUG("   src2: ");
745
	src = atom_get_src(ctx, attr, ptr);
746
	ctx->ctx->divmul[0] = dst * src;
747
}
748
 
749
static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
750
{
751
	/* nothing */
752
}
753
 
754
static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
755
{
756
	uint8_t attr = U8((*ptr)++);
757
	uint32_t dst, src, saved;
758
	int dptr = *ptr;
759
	SDEBUG("   dst: ");
760
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
761
	SDEBUG("   src: ");
762
	src = atom_get_src(ctx, attr, ptr);
763
	dst |= src;
764
	SDEBUG("   dst: ");
765
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
766
}
767
 
768
static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
769
{
770
	uint8_t val = U8((*ptr)++);
771
	SDEBUG("POST card output: 0x%02X\n", val);
772
}
773
 
774
static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
775
{
776
	printk(KERN_INFO "unimplemented!\n");
777
}
778
 
779
static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
780
{
781
	printk(KERN_INFO "unimplemented!\n");
782
}
783
 
784
static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
785
{
786
	printk(KERN_INFO "unimplemented!\n");
787
}
788
 
789
static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
790
{
791
	int idx = U8(*ptr);
792
	(*ptr)++;
793
	SDEBUG("   block: %d\n", idx);
794
	if (!idx)
795
		ctx->ctx->data_block = 0;
796
	else if (idx == 255)
797
		ctx->ctx->data_block = ctx->start;
798
	else
799
		ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
800
	SDEBUG("   base: 0x%04X\n", ctx->ctx->data_block);
801
}
802
 
803
static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
804
{
805
	uint8_t attr = U8((*ptr)++);
806
	SDEBUG("   fb_base: ");
807
	ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
808
}
809
 
810
static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
811
{
812
	int port;
813
	switch (arg) {
814
	case ATOM_PORT_ATI:
815
		port = U16(*ptr);
816
		if (port < ATOM_IO_NAMES_CNT)
817
			SDEBUG("   port: %d (%s)\n", port, atom_io_names[port]);
818
		else
819
			SDEBUG("   port: %d\n", port);
820
		if (!port)
821
			ctx->ctx->io_mode = ATOM_IO_MM;
822
		else
823
			ctx->ctx->io_mode = ATOM_IO_IIO | port;
824
		(*ptr) += 2;
825
		break;
826
	case ATOM_PORT_PCI:
827
		ctx->ctx->io_mode = ATOM_IO_PCI;
828
		(*ptr)++;
829
		break;
830
	case ATOM_PORT_SYSIO:
831
		ctx->ctx->io_mode = ATOM_IO_SYSIO;
832
		(*ptr)++;
833
		break;
834
	}
835
}
836
 
837
static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
838
{
839
	ctx->ctx->reg_block = U16(*ptr);
840
	(*ptr) += 2;
841
	SDEBUG("   base: 0x%04X\n", ctx->ctx->reg_block);
842
}
843
 
1403 serge 844
static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
845
{
846
	uint8_t attr = U8((*ptr)++), shift;
847
	uint32_t saved, dst;
848
	int dptr = *ptr;
849
	attr &= 0x38;
850
	attr |= atom_def_dst[attr >> 3] << 6;
851
	SDEBUG("   dst: ");
852
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
853
	shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
854
	SDEBUG("   shift: %d\n", shift);
855
	dst <<= shift;
856
	SDEBUG("   dst: ");
857
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
858
}
859
 
860
static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
861
{
862
	uint8_t attr = U8((*ptr)++), shift;
863
	uint32_t saved, dst;
864
	int dptr = *ptr;
865
	attr &= 0x38;
866
	attr |= atom_def_dst[attr >> 3] << 6;
867
	SDEBUG("   dst: ");
868
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
869
	shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
870
	SDEBUG("   shift: %d\n", shift);
871
	dst >>= shift;
872
	SDEBUG("   dst: ");
873
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
874
}
875
 
1117 serge 876
static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
877
{
878
	uint8_t attr = U8((*ptr)++), shift;
879
	uint32_t saved, dst;
880
	int dptr = *ptr;
881
	attr &= 0x38;
882
	attr |= atom_def_dst[attr >> 3] << 6;
883
	SDEBUG("   dst: ");
884
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1403 serge 885
	shift = atom_get_src(ctx, attr, ptr);
1117 serge 886
	SDEBUG("   shift: %d\n", shift);
887
	dst <<= shift;
888
	SDEBUG("   dst: ");
889
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
890
}
891
 
892
static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
893
{
894
	uint8_t attr = U8((*ptr)++), shift;
895
	uint32_t saved, dst;
896
	int dptr = *ptr;
897
	attr &= 0x38;
898
	attr |= atom_def_dst[attr >> 3] << 6;
899
	SDEBUG("   dst: ");
900
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1403 serge 901
	shift = atom_get_src(ctx, attr, ptr);
1117 serge 902
	SDEBUG("   shift: %d\n", shift);
903
	dst >>= shift;
904
	SDEBUG("   dst: ");
905
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
906
}
907
 
908
static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
909
{
910
	uint8_t attr = U8((*ptr)++);
911
	uint32_t dst, src, saved;
912
	int dptr = *ptr;
913
	SDEBUG("   dst: ");
914
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
915
	SDEBUG("   src: ");
916
	src = atom_get_src(ctx, attr, ptr);
917
	dst -= src;
918
	SDEBUG("   dst: ");
919
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
920
}
921
 
922
static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
923
{
924
	uint8_t attr = U8((*ptr)++);
925
	uint32_t src, val, target;
926
	SDEBUG("   switch: ");
927
	src = atom_get_src(ctx, attr, ptr);
928
	while (U16(*ptr) != ATOM_CASE_END)
929
		if (U8(*ptr) == ATOM_CASE_MAGIC) {
930
			(*ptr)++;
931
			SDEBUG("   case: ");
932
			val =
933
			    atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
934
					 ptr);
935
			target = U16(*ptr);
936
			if (val == src) {
937
				SDEBUG("   target: %04X\n", target);
938
				*ptr = ctx->start + target;
939
				return;
940
			}
941
			(*ptr) += 2;
942
		} else {
943
			printk(KERN_INFO "Bad case.\n");
944
			return;
945
		}
946
	(*ptr) += 2;
947
}
948
 
949
static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
950
{
951
	uint8_t attr = U8((*ptr)++);
952
	uint32_t dst, src;
953
	SDEBUG("   src1: ");
954
	dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
955
	SDEBUG("   src2: ");
956
	src = atom_get_src(ctx, attr, ptr);
957
	ctx->ctx->cs_equal = ((dst & src) == 0);
958
	SDEBUG("   result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
959
}
960
 
961
static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
962
{
963
	uint8_t attr = U8((*ptr)++);
964
	uint32_t dst, src, saved;
965
	int dptr = *ptr;
966
	SDEBUG("   dst: ");
967
	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
968
	SDEBUG("   src: ");
969
	src = atom_get_src(ctx, attr, ptr);
970
	dst ^= src;
971
	SDEBUG("   dst: ");
972
	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
973
}
974
 
975
static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
976
{
977
	printk(KERN_INFO "unimplemented!\n");
978
}
979
 
980
static struct {
981
	void (*func) (atom_exec_context *, int *, int);
982
	int arg;
983
} opcode_table[ATOM_OP_CNT] = {
984
	{
985
	NULL, 0}, {
986
	atom_op_move, ATOM_ARG_REG}, {
987
	atom_op_move, ATOM_ARG_PS}, {
988
	atom_op_move, ATOM_ARG_WS}, {
989
	atom_op_move, ATOM_ARG_FB}, {
990
	atom_op_move, ATOM_ARG_PLL}, {
991
	atom_op_move, ATOM_ARG_MC}, {
992
	atom_op_and, ATOM_ARG_REG}, {
993
	atom_op_and, ATOM_ARG_PS}, {
994
	atom_op_and, ATOM_ARG_WS}, {
995
	atom_op_and, ATOM_ARG_FB}, {
996
	atom_op_and, ATOM_ARG_PLL}, {
997
	atom_op_and, ATOM_ARG_MC}, {
998
	atom_op_or, ATOM_ARG_REG}, {
999
	atom_op_or, ATOM_ARG_PS}, {
1000
	atom_op_or, ATOM_ARG_WS}, {
1001
	atom_op_or, ATOM_ARG_FB}, {
1002
	atom_op_or, ATOM_ARG_PLL}, {
1003
	atom_op_or, ATOM_ARG_MC}, {
1403 serge 1004
	atom_op_shift_left, ATOM_ARG_REG}, {
1005
	atom_op_shift_left, ATOM_ARG_PS}, {
1006
	atom_op_shift_left, ATOM_ARG_WS}, {
1007
	atom_op_shift_left, ATOM_ARG_FB}, {
1008
	atom_op_shift_left, ATOM_ARG_PLL}, {
1009
	atom_op_shift_left, ATOM_ARG_MC}, {
1010
	atom_op_shift_right, ATOM_ARG_REG}, {
1011
	atom_op_shift_right, ATOM_ARG_PS}, {
1012
	atom_op_shift_right, ATOM_ARG_WS}, {
1013
	atom_op_shift_right, ATOM_ARG_FB}, {
1014
	atom_op_shift_right, ATOM_ARG_PLL}, {
1015
	atom_op_shift_right, ATOM_ARG_MC}, {
1117 serge 1016
	atom_op_mul, ATOM_ARG_REG}, {
1017
	atom_op_mul, ATOM_ARG_PS}, {
1018
	atom_op_mul, ATOM_ARG_WS}, {
1019
	atom_op_mul, ATOM_ARG_FB}, {
1020
	atom_op_mul, ATOM_ARG_PLL}, {
1021
	atom_op_mul, ATOM_ARG_MC}, {
1022
	atom_op_div, ATOM_ARG_REG}, {
1023
	atom_op_div, ATOM_ARG_PS}, {
1024
	atom_op_div, ATOM_ARG_WS}, {
1025
	atom_op_div, ATOM_ARG_FB}, {
1026
	atom_op_div, ATOM_ARG_PLL}, {
1027
	atom_op_div, ATOM_ARG_MC}, {
1028
	atom_op_add, ATOM_ARG_REG}, {
1029
	atom_op_add, ATOM_ARG_PS}, {
1030
	atom_op_add, ATOM_ARG_WS}, {
1031
	atom_op_add, ATOM_ARG_FB}, {
1032
	atom_op_add, ATOM_ARG_PLL}, {
1033
	atom_op_add, ATOM_ARG_MC}, {
1034
	atom_op_sub, ATOM_ARG_REG}, {
1035
	atom_op_sub, ATOM_ARG_PS}, {
1036
	atom_op_sub, ATOM_ARG_WS}, {
1037
	atom_op_sub, ATOM_ARG_FB}, {
1038
	atom_op_sub, ATOM_ARG_PLL}, {
1039
	atom_op_sub, ATOM_ARG_MC}, {
1040
	atom_op_setport, ATOM_PORT_ATI}, {
1041
	atom_op_setport, ATOM_PORT_PCI}, {
1042
	atom_op_setport, ATOM_PORT_SYSIO}, {
1043
	atom_op_setregblock, 0}, {
1044
	atom_op_setfbbase, 0}, {
1045
	atom_op_compare, ATOM_ARG_REG}, {
1046
	atom_op_compare, ATOM_ARG_PS}, {
1047
	atom_op_compare, ATOM_ARG_WS}, {
1048
	atom_op_compare, ATOM_ARG_FB}, {
1049
	atom_op_compare, ATOM_ARG_PLL}, {
1050
	atom_op_compare, ATOM_ARG_MC}, {
1051
	atom_op_switch, 0}, {
1052
	atom_op_jump, ATOM_COND_ALWAYS}, {
1053
	atom_op_jump, ATOM_COND_EQUAL}, {
1054
	atom_op_jump, ATOM_COND_BELOW}, {
1055
	atom_op_jump, ATOM_COND_ABOVE}, {
1056
	atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1057
	atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1058
	atom_op_jump, ATOM_COND_NOTEQUAL}, {
1059
	atom_op_test, ATOM_ARG_REG}, {
1060
	atom_op_test, ATOM_ARG_PS}, {
1061
	atom_op_test, ATOM_ARG_WS}, {
1062
	atom_op_test, ATOM_ARG_FB}, {
1063
	atom_op_test, ATOM_ARG_PLL}, {
1064
	atom_op_test, ATOM_ARG_MC}, {
1065
	atom_op_delay, ATOM_UNIT_MILLISEC}, {
1066
	atom_op_delay, ATOM_UNIT_MICROSEC}, {
1067
	atom_op_calltable, 0}, {
1068
	atom_op_repeat, 0}, {
1069
	atom_op_clear, ATOM_ARG_REG}, {
1070
	atom_op_clear, ATOM_ARG_PS}, {
1071
	atom_op_clear, ATOM_ARG_WS}, {
1072
	atom_op_clear, ATOM_ARG_FB}, {
1073
	atom_op_clear, ATOM_ARG_PLL}, {
1074
	atom_op_clear, ATOM_ARG_MC}, {
1075
	atom_op_nop, 0}, {
1076
	atom_op_eot, 0}, {
1077
	atom_op_mask, ATOM_ARG_REG}, {
1078
	atom_op_mask, ATOM_ARG_PS}, {
1079
	atom_op_mask, ATOM_ARG_WS}, {
1080
	atom_op_mask, ATOM_ARG_FB}, {
1081
	atom_op_mask, ATOM_ARG_PLL}, {
1082
	atom_op_mask, ATOM_ARG_MC}, {
1083
	atom_op_postcard, 0}, {
1084
	atom_op_beep, 0}, {
1085
	atom_op_savereg, 0}, {
1086
	atom_op_restorereg, 0}, {
1087
	atom_op_setdatablock, 0}, {
1088
	atom_op_xor, ATOM_ARG_REG}, {
1089
	atom_op_xor, ATOM_ARG_PS}, {
1090
	atom_op_xor, ATOM_ARG_WS}, {
1091
	atom_op_xor, ATOM_ARG_FB}, {
1092
	atom_op_xor, ATOM_ARG_PLL}, {
1093
	atom_op_xor, ATOM_ARG_MC}, {
1094
	atom_op_shl, ATOM_ARG_REG}, {
1095
	atom_op_shl, ATOM_ARG_PS}, {
1096
	atom_op_shl, ATOM_ARG_WS}, {
1097
	atom_op_shl, ATOM_ARG_FB}, {
1098
	atom_op_shl, ATOM_ARG_PLL}, {
1099
	atom_op_shl, ATOM_ARG_MC}, {
1100
	atom_op_shr, ATOM_ARG_REG}, {
1101
	atom_op_shr, ATOM_ARG_PS}, {
1102
	atom_op_shr, ATOM_ARG_WS}, {
1103
	atom_op_shr, ATOM_ARG_FB}, {
1104
	atom_op_shr, ATOM_ARG_PLL}, {
1105
	atom_op_shr, ATOM_ARG_MC}, {
1106
atom_op_debug, 0},};
1107
 
1403 serge 1108
static void atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1117 serge 1109
{
1110
	int base = CU16(ctx->cmd_table + 4 + 2 * index);
1111
	int len, ws, ps, ptr;
1112
	unsigned char op;
1113
	atom_exec_context ectx;
1114
 
1115
	if (!base)
1116
		return;
1117
 
1118
	len = CU16(base + ATOM_CT_SIZE_PTR);
1119
	ws = CU8(base + ATOM_CT_WS_PTR);
1120
	ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1121
	ptr = base + ATOM_CT_CODE_PTR;
1122
 
1123
	SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1124
 
1125
	ectx.ctx = ctx;
1126
	ectx.ps_shift = ps / 4;
1127
	ectx.start = base;
1128
	ectx.ps = params;
1129
	if (ws)
1130
		ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1131
	else
1132
		ectx.ws = NULL;
1133
 
1134
	debug_depth++;
1135
	while (1) {
1136
		op = CU8(ptr++);
1137
		if (op < ATOM_OP_NAMES_CNT)
1138
			SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1139
		else
1140
			SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1141
 
1142
		if (op < ATOM_OP_CNT && op > 0)
1143
			opcode_table[op].func(&ectx, &ptr,
1144
					      opcode_table[op].arg);
1145
		else
1146
			break;
1147
 
1148
		if (op == ATOM_OP_EOT)
1149
			break;
1150
	}
1151
	debug_depth--;
1152
	SDEBUG("<<\n");
1153
 
1154
	if (ws)
1155
		kfree(ectx.ws);
1156
}
1157
 
1403 serge 1158
void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1159
{
1160
	mutex_lock(&ctx->mutex);
1161
	/* reset reg block */
1162
	ctx->reg_block = 0;
1163
	/* reset fb window */
1164
	ctx->fb_base = 0;
1165
	/* reset io mode */
1166
	ctx->io_mode = ATOM_IO_MM;
1167
	atom_execute_table_locked(ctx, index, params);
1168
	mutex_unlock(&ctx->mutex);
1169
}
1170
 
1117 serge 1171
static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1172
 
1173
static void atom_index_iio(struct atom_context *ctx, int base)
1174
{
1175
	ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1176
	while (CU8(base) == ATOM_IIO_START) {
1177
		ctx->iio[CU8(base + 1)] = base + 2;
1178
		base += 2;
1179
		while (CU8(base) != ATOM_IIO_END)
1180
			base += atom_iio_len[CU8(base)];
1181
		base += 3;
1182
	}
1183
}
1184
 
1185
struct atom_context *atom_parse(struct card_info *card, void *bios)
1186
{
1187
	int base;
1188
	struct atom_context *ctx =
1189
	    kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1190
	char *str;
1191
	char name[512];
1192
	int i;
1193
 
1194
	ctx->card = card;
1195
	ctx->bios = bios;
1196
 
1197
	if (CU16(0) != ATOM_BIOS_MAGIC) {
1198
		printk(KERN_INFO "Invalid BIOS magic.\n");
1199
		kfree(ctx);
1200
		return NULL;
1201
	}
1202
	if (strncmp
1203
	    (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1204
	     strlen(ATOM_ATI_MAGIC))) {
1205
		printk(KERN_INFO "Invalid ATI magic.\n");
1206
		kfree(ctx);
1207
		return NULL;
1208
	}
1209
 
1210
	base = CU16(ATOM_ROM_TABLE_PTR);
1211
	if (strncmp
1212
	    (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1213
	     strlen(ATOM_ROM_MAGIC))) {
1214
		printk(KERN_INFO "Invalid ATOM magic.\n");
1215
		kfree(ctx);
1216
		return NULL;
1217
	}
1218
 
1219
	ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1220
	ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1221
	atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1222
 
1223
	str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1224
	while (*str && ((*str == '\n') || (*str == '\r')))
1225
		str++;
1226
	/* name string isn't always 0 terminated */
1227
	for (i = 0; i < 511; i++) {
1228
		name[i] = str[i];
1229
		if (name[i] < '.' || name[i] > 'z') {
1230
			name[i] = 0;
1231
			break;
1232
		}
1233
	}
1234
	printk(KERN_INFO "ATOM BIOS: %s\n", name);
1235
 
1236
	return ctx;
1237
}
1238
 
1239
int atom_asic_init(struct atom_context *ctx)
1240
{
1241
	int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1242
	uint32_t ps[16];
1243
	memset(ps, 0, 64);
1244
 
1245
	ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1246
	ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1247
	if (!ps[0] || !ps[1])
1248
		return 1;
1249
 
1250
	if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1251
		return 1;
1252
	atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1253
 
1254
	return 0;
1255
}
1256
 
1257
void atom_destroy(struct atom_context *ctx)
1258
{
1259
	if (ctx->iio)
1260
		kfree(ctx->iio);
1261
	kfree(ctx);
1262
}
1263
 
1264
void atom_parse_data_header(struct atom_context *ctx, int index,
1265
			    uint16_t * size, uint8_t * frev, uint8_t * crev,
1266
			    uint16_t * data_start)
1267
{
1268
	int offset = index * 2 + 4;
1269
	int idx = CU16(ctx->data_table + offset);
1270
 
1271
	if (size)
1272
		*size = CU16(idx);
1273
	if (frev)
1274
		*frev = CU8(idx + 2);
1275
	if (crev)
1276
		*crev = CU8(idx + 3);
1277
	*data_start = idx;
1278
	return;
1279
}
1280
 
1281
void atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1282
			   uint8_t * crev)
1283
{
1284
	int offset = index * 2 + 4;
1285
	int idx = CU16(ctx->cmd_table + offset);
1286
 
1287
	if (frev)
1288
		*frev = CU8(idx + 2);
1289
	if (crev)
1290
		*crev = CU8(idx + 3);
1291
	return;
1292
}
1321 serge 1293
 
1294
int atom_allocate_fb_scratch(struct atom_context *ctx)
1295
{
1296
	int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1297
	uint16_t data_offset;
1298
	int usage_bytes;
1299
	struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1300
 
1301
	atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset);
1302
 
1303
	firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1304
 
1305
	DRM_DEBUG("atom firmware requested %08x %dkb\n",
1306
		  firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
1307
		  firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
1308
 
1309
	usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
1310
	if (usage_bytes == 0)
1311
		usage_bytes = 20 * 1024;
1312
	/* allocate some scratch memory */
1313
	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1314
	if (!ctx->scratch)
1315
		return -ENOMEM;
1316
	return 0;
1317
}