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