forked from ~ljy/RK356X_SDK_RELEASE

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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/sound/pci/intel8x0.c
....@@ -1,29 +1,14 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *   ALSA driver for Intel ICH (i8x0) chipsets
34  *
45  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
56  *
6
- *
77  *   This code also contains alpha support for SiS 735 chipsets provided
88  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
99  *   for SiS735, so the code is not fully functional.
1010  *
11
- *
12
- *   This program is free software; you can redistribute it and/or modify
13
- *   it under the terms of the GNU General Public License as published by
14
- *   the Free Software Foundation; either version 2 of the License, or
15
- *   (at your option) any later version.
16
- *
17
- *   This program is distributed in the hope that it will be useful,
18
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20
- *   GNU General Public License for more details.
21
- *
22
- *   You should have received a copy of the GNU General Public License
23
- *   along with this program; if not, write to the Free Software
24
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
2511 
26
- *
2712  */      
2813 
2914 #include <linux/io.h>
....@@ -38,11 +23,6 @@
3823 #include <sound/ac97_codec.h>
3924 #include <sound/info.h>
4025 #include <sound/initval.h>
41
-/* for 440MX workaround */
42
-#include <asm/pgtable.h>
43
-#ifdef CONFIG_X86
44
-#include <asm/set_memory.h>
45
-#endif
4626 
4727 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
4828 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
....@@ -86,7 +66,7 @@
8666 module_param(id, charp, 0444);
8767 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
8868 module_param(ac97_clock, int, 0444);
89
-MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
69
+MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = allowlist + auto-detect, 1 = force autodetect).");
9070 module_param(ac97_quirk, charp, 0444);
9171 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
9272 module_param(buggy_semaphore, bool, 0444);
....@@ -374,7 +354,7 @@
374354 	unsigned int ali_slot;			/* ALI DMA slot */
375355 	struct ac97_pcm *pcm;
376356 	int pcm_open_flag;
377
-	unsigned int page_attr_changed: 1;
357
+	unsigned int prepared:1;
378358 	unsigned int suspended: 1;
379359 };
380360 
....@@ -414,7 +394,7 @@
414394 	struct snd_ac97 *ac97[3];
415395 	unsigned int ac97_sdin[3];
416396 	unsigned int max_codecs, ncodecs;
417
-	unsigned int *codec_bit;
397
+	const unsigned int *codec_bit;
418398 	unsigned int codec_isr_bits;
419399 	unsigned int codec_ready_bits;
420400 
....@@ -724,25 +704,6 @@
724704 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
725705 }
726706 
727
-#ifdef __i386__
728
-/*
729
- * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
730
- * which aborts PCI busmaster for audio transfer.  A workaround is to set
731
- * the pages as non-cached.  For details, see the errata in
732
- *	http://download.intel.com/design/chipsets/specupdt/24505108.pdf
733
- */
734
-static void fill_nocache(void *buf, int size, int nocache)
735
-{
736
-	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
737
-	if (nocache)
738
-		set_pages_uc(virt_to_page(buf), size);
739
-	else
740
-		set_pages_wb(virt_to_page(buf), size);
741
-}
742
-#else
743
-#define fill_nocache(buf, size, nocache) do { ; } while (0)
744
-#endif
745
-
746707 /*
747708  *  Interrupt handler
748709  */
....@@ -753,6 +714,9 @@
753714 	unsigned long flags;
754715 	int status, civ, i, step;
755716 	int ack = 0;
717
+
718
+	if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended)
719
+		return;
756720 
757721 	spin_lock_irqsave(&chip->reg_lock, flags);
758722 	status = igetbyte(chip, port + ichdev->roff_sr);
....@@ -850,7 +814,7 @@
850814 	switch (cmd) {
851815 	case SNDRV_PCM_TRIGGER_RESUME:
852816 		ichdev->suspended = 0;
853
-		/* fallthru */
817
+		fallthrough;
854818 	case SNDRV_PCM_TRIGGER_START:
855819 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
856820 		val = ICH_IOCE | ICH_STARTBM;
....@@ -858,7 +822,7 @@
858822 		break;
859823 	case SNDRV_PCM_TRIGGER_SUSPEND:
860824 		ichdev->suspended = 1;
861
-		/* fallthru */
825
+		fallthrough;
862826 	case SNDRV_PCM_TRIGGER_STOP:
863827 		val = 0;
864828 		break;
....@@ -883,7 +847,7 @@
883847 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
884848 	struct ichdev *ichdev = get_ichdev(substream);
885849 	unsigned long port = ichdev->reg_offset;
886
-	static int fiforeg[] = {
850
+	static const int fiforeg[] = {
887851 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
888852 	};
889853 	unsigned int val, fifo;
....@@ -892,7 +856,7 @@
892856 	switch (cmd) {
893857 	case SNDRV_PCM_TRIGGER_RESUME:
894858 		ichdev->suspended = 0;
895
-		/* fallthru */
859
+		fallthrough;
896860 	case SNDRV_PCM_TRIGGER_START:
897861 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
898862 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
....@@ -909,7 +873,7 @@
909873 		break;
910874 	case SNDRV_PCM_TRIGGER_SUSPEND:
911875 		ichdev->suspended = 1;
912
-		/* fallthru */
876
+		fallthrough;
913877 	case SNDRV_PCM_TRIGGER_STOP:
914878 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
915879 		/* pause */
....@@ -938,26 +902,13 @@
938902 {
939903 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
940904 	struct ichdev *ichdev = get_ichdev(substream);
941
-	struct snd_pcm_runtime *runtime = substream->runtime;
942905 	int dbl = params_rate(hw_params) > 48000;
943906 	int err;
944907 
945
-	if (chip->fix_nocache && ichdev->page_attr_changed) {
946
-		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
947
-		ichdev->page_attr_changed = 0;
948
-	}
949
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
950
-	if (err < 0)
951
-		return err;
952
-	if (chip->fix_nocache) {
953
-		if (runtime->dma_area && ! ichdev->page_attr_changed) {
954
-			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
955
-			ichdev->page_attr_changed = 1;
956
-		}
957
-	}
958908 	if (ichdev->pcm_open_flag) {
959909 		snd_ac97_pcm_close(ichdev->pcm);
960910 		ichdev->pcm_open_flag = 0;
911
+		ichdev->prepared = 0;
961912 	}
962913 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
963914 				params_channels(hw_params),
....@@ -974,18 +925,14 @@
974925 
975926 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
976927 {
977
-	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
978928 	struct ichdev *ichdev = get_ichdev(substream);
979929 
980930 	if (ichdev->pcm_open_flag) {
981931 		snd_ac97_pcm_close(ichdev->pcm);
982932 		ichdev->pcm_open_flag = 0;
933
+		ichdev->prepared = 0;
983934 	}
984
-	if (chip->fix_nocache && ichdev->page_attr_changed) {
985
-		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
986
-		ichdev->page_attr_changed = 0;
987
-	}
988
-	return snd_pcm_lib_free_pages(substream);
935
+	return 0;
989936 }
990937 
991938 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
....@@ -1058,6 +1005,7 @@
10581005 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
10591006 	}
10601007 	snd_intel8x0_setup_periods(chip, ichdev);
1008
+	ichdev->prepared = 1;
10611009 	return 0;
10621010 }
10631011 
....@@ -1370,7 +1318,6 @@
13701318 static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
13711319 	.open =		snd_intel8x0_playback_open,
13721320 	.close =	snd_intel8x0_playback_close,
1373
-	.ioctl =	snd_pcm_lib_ioctl,
13741321 	.hw_params =	snd_intel8x0_hw_params,
13751322 	.hw_free =	snd_intel8x0_hw_free,
13761323 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1381,7 +1328,6 @@
13811328 static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
13821329 	.open =		snd_intel8x0_capture_open,
13831330 	.close =	snd_intel8x0_capture_close,
1384
-	.ioctl =	snd_pcm_lib_ioctl,
13851331 	.hw_params =	snd_intel8x0_hw_params,
13861332 	.hw_free =	snd_intel8x0_hw_free,
13871333 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1392,7 +1338,6 @@
13921338 static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
13931339 	.open =		snd_intel8x0_mic_open,
13941340 	.close =	snd_intel8x0_mic_close,
1395
-	.ioctl =	snd_pcm_lib_ioctl,
13961341 	.hw_params =	snd_intel8x0_hw_params,
13971342 	.hw_free =	snd_intel8x0_hw_free,
13981343 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1403,7 +1348,6 @@
14031348 static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
14041349 	.open =		snd_intel8x0_mic2_open,
14051350 	.close =	snd_intel8x0_mic2_close,
1406
-	.ioctl =	snd_pcm_lib_ioctl,
14071351 	.hw_params =	snd_intel8x0_hw_params,
14081352 	.hw_free =	snd_intel8x0_hw_free,
14091353 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1414,7 +1358,6 @@
14141358 static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
14151359 	.open =		snd_intel8x0_capture2_open,
14161360 	.close =	snd_intel8x0_capture2_close,
1417
-	.ioctl =	snd_pcm_lib_ioctl,
14181361 	.hw_params =	snd_intel8x0_hw_params,
14191362 	.hw_free =	snd_intel8x0_hw_free,
14201363 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1425,7 +1368,6 @@
14251368 static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
14261369 	.open =		snd_intel8x0_spdif_open,
14271370 	.close =	snd_intel8x0_spdif_close,
1428
-	.ioctl =	snd_pcm_lib_ioctl,
14291371 	.hw_params =	snd_intel8x0_hw_params,
14301372 	.hw_free =	snd_intel8x0_hw_free,
14311373 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1436,7 +1378,6 @@
14361378 static const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
14371379 	.open =		snd_intel8x0_playback_open,
14381380 	.close =	snd_intel8x0_playback_close,
1439
-	.ioctl =	snd_pcm_lib_ioctl,
14401381 	.hw_params =	snd_intel8x0_hw_params,
14411382 	.hw_free =	snd_intel8x0_hw_free,
14421383 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1447,7 +1388,6 @@
14471388 static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
14481389 	.open =		snd_intel8x0_capture_open,
14491390 	.close =	snd_intel8x0_capture_close,
1450
-	.ioctl =	snd_pcm_lib_ioctl,
14511391 	.hw_params =	snd_intel8x0_hw_params,
14521392 	.hw_free =	snd_intel8x0_hw_free,
14531393 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1458,7 +1398,6 @@
14581398 static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
14591399 	.open =		snd_intel8x0_mic_open,
14601400 	.close =	snd_intel8x0_mic_close,
1461
-	.ioctl =	snd_pcm_lib_ioctl,
14621401 	.hw_params =	snd_intel8x0_hw_params,
14631402 	.hw_free =	snd_intel8x0_hw_free,
14641403 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1469,7 +1408,6 @@
14691408 static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
14701409 	.open =		snd_intel8x0_ali_ac97spdifout_open,
14711410 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1472
-	.ioctl =	snd_pcm_lib_ioctl,
14731411 	.hw_params =	snd_intel8x0_hw_params,
14741412 	.hw_free =	snd_intel8x0_hw_free,
14751413 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1481,7 +1419,6 @@
14811419 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
14821420 	.open =		snd_intel8x0_ali_spdifin_open,
14831421 	.close =	snd_intel8x0_ali_spdifin_close,
1484
-	.ioctl =	snd_pcm_lib_ioctl,
14851422 	.hw_params =	snd_intel8x0_hw_params,
14861423 	.hw_free =	snd_intel8x0_hw_free,
14871424 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1492,7 +1429,6 @@
14921429 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
14931430 	.open =		snd_intel8x0_ali_spdifout_open,
14941431 	.close =	snd_intel8x0_ali_spdifout_close,
1495
-	.ioctl =	snd_pcm_lib_ioctl,
14961432 	.hw_params =	snd_intel8x0_hw_params,
14971433 	.hw_free =	snd_intel8x0_hw_free,
14981434 	.prepare =	snd_intel8x0_pcm_prepare,
....@@ -1510,8 +1446,11 @@
15101446 	int ac97_idx;
15111447 };
15121448 
1449
+#define intel8x0_dma_type(chip) \
1450
+	((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_UC : SNDRV_DMA_TYPE_DEV)
1451
+
15131452 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1514
-			     struct ich_pcm_table *rec)
1453
+			     const struct ich_pcm_table *rec)
15151454 {
15161455 	struct snd_pcm *pcm;
15171456 	int err;
....@@ -1540,9 +1479,9 @@
15401479 		strcpy(pcm->name, chip->card->shortname);
15411480 	chip->pcm[device] = pcm;
15421481 
1543
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1544
-					      snd_dma_pci_data(chip->pci),
1545
-					      rec->prealloc_size, rec->prealloc_max_size);
1482
+	snd_pcm_set_managed_buffer_all(pcm, intel8x0_dma_type(chip),
1483
+				       &chip->pci->dev,
1484
+				       rec->prealloc_size, rec->prealloc_max_size);
15461485 
15471486 	if (rec->playback_ops &&
15481487 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
....@@ -1566,7 +1505,7 @@
15661505 	return 0;
15671506 }
15681507 
1569
-static struct ich_pcm_table intel_pcms[] = {
1508
+static const struct ich_pcm_table intel_pcms[] = {
15701509 	{
15711510 		.playback_ops = &snd_intel8x0_playback_ops,
15721511 		.capture_ops = &snd_intel8x0_capture_ops,
....@@ -1603,7 +1542,7 @@
16031542 	},
16041543 };
16051544 
1606
-static struct ich_pcm_table nforce_pcms[] = {
1545
+static const struct ich_pcm_table nforce_pcms[] = {
16071546 	{
16081547 		.playback_ops = &snd_intel8x0_playback_ops,
16091548 		.capture_ops = &snd_intel8x0_capture_ops,
....@@ -1626,7 +1565,7 @@
16261565 	},
16271566 };
16281567 
1629
-static struct ich_pcm_table ali_pcms[] = {
1568
+static const struct ich_pcm_table ali_pcms[] = {
16301569 	{
16311570 		.playback_ops = &snd_intel8x0_ali_playback_ops,
16321571 		.capture_ops = &snd_intel8x0_ali_capture_ops,
....@@ -1661,7 +1600,7 @@
16611600 static int snd_intel8x0_pcm(struct intel8x0 *chip)
16621601 {
16631602 	int i, tblsize, device, err;
1664
-	struct ich_pcm_table *tbl, *rec;
1603
+	const struct ich_pcm_table *tbl, *rec;
16651604 
16661605 	switch (chip->device_type) {
16671606 	case DEVICE_INTEL_ICH4:
....@@ -2206,12 +2145,12 @@
22062145 	int err;
22072146 	unsigned int i, codecs;
22082147 	unsigned int glob_sta = 0;
2209
-	struct snd_ac97_bus_ops *ops;
2210
-	static struct snd_ac97_bus_ops standard_bus_ops = {
2148
+	const struct snd_ac97_bus_ops *ops;
2149
+	static const struct snd_ac97_bus_ops standard_bus_ops = {
22112150 		.write = snd_intel8x0_codec_write,
22122151 		.read = snd_intel8x0_codec_read,
22132152 	};
2214
-	static struct snd_ac97_bus_ops ali_bus_ops = {
2153
+	static const struct snd_ac97_bus_ops ali_bus_ops = {
22152154 		.write = snd_intel8x0_ali_codec_write,
22162155 		.read = snd_intel8x0_ali_codec_read,
22172156 	};
....@@ -2396,7 +2335,7 @@
23962335 }
23972336 
23982337 #ifdef CONFIG_SND_AC97_POWER_SAVE
2399
-static struct snd_pci_quirk ich_chip_reset_mode[] = {
2338
+static const struct snd_pci_quirk ich_chip_reset_mode[] = {
24002339 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
24012340 	{ } /* end */
24022341 };
....@@ -2629,11 +2568,8 @@
26292568       __hw_end:
26302569 	if (chip->irq >= 0)
26312570 		free_irq(chip->irq, chip);
2632
-	if (chip->bdbars.area) {
2633
-		if (chip->fix_nocache)
2634
-			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2571
+	if (chip->bdbars.area)
26352572 		snd_dma_free_pages(&chip->bdbars);
2636
-	}
26372573 	if (chip->addr)
26382574 		pci_iounmap(chip->pci, chip->addr);
26392575 	if (chip->bmaddr)
....@@ -2655,19 +2591,6 @@
26552591 	int i;
26562592 
26572593 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2658
-	for (i = 0; i < chip->pcm_devs; i++)
2659
-		snd_pcm_suspend_all(chip->pcm[i]);
2660
-	/* clear nocache */
2661
-	if (chip->fix_nocache) {
2662
-		for (i = 0; i < chip->bdbars_count; i++) {
2663
-			struct ichdev *ichdev = &chip->ichd[i];
2664
-			if (ichdev->substream && ichdev->page_attr_changed) {
2665
-				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2666
-				if (runtime->dma_area)
2667
-					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2668
-			}
2669
-		}
2670
-	}
26712594 	for (i = 0; i < chip->ncodecs; i++)
26722595 		snd_ac97_suspend(chip->ac97[i]);
26732596 	if (chip->device_type == DEVICE_INTEL_ICH4)
....@@ -2676,6 +2599,7 @@
26762599 	if (chip->irq >= 0) {
26772600 		free_irq(chip->irq, chip);
26782601 		chip->irq = -1;
2602
+		card->sync_irq = -1;
26792603 	}
26802604 	return 0;
26812605 }
....@@ -2696,7 +2620,7 @@
26962620 		return -EIO;
26972621 	}
26982622 	chip->irq = pci->irq;
2699
-	synchronize_irq(chip->irq);
2623
+	card->sync_irq = chip->irq;
27002624 
27012625 	/* re-initialize mixer stuff */
27022626 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
....@@ -2708,24 +2632,8 @@
27082632 			  ICH_PCM_SPDIF_1011);
27092633 	}
27102634 
2711
-	/* refill nocache */
2712
-	if (chip->fix_nocache)
2713
-		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2714
-
27152635 	for (i = 0; i < chip->ncodecs; i++)
27162636 		snd_ac97_resume(chip->ac97[i]);
2717
-
2718
-	/* refill nocache */
2719
-	if (chip->fix_nocache) {
2720
-		for (i = 0; i < chip->bdbars_count; i++) {
2721
-			struct ichdev *ichdev = &chip->ichd[i];
2722
-			if (ichdev->substream && ichdev->page_attr_changed) {
2723
-				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2724
-				if (runtime->dma_area)
2725
-					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2726
-			}
2727
-		}
2728
-	}
27292637 
27302638 	/* resume status */
27312639 	for (i = 0; i < chip->bdbars_count; i++) {
....@@ -2873,7 +2781,7 @@
28732781 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
28742782 }
28752783 
2876
-static struct snd_pci_quirk intel8x0_clock_list[] = {
2784
+static const struct snd_pci_quirk intel8x0_clock_list[] = {
28772785 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
28782786 	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
28792787 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
....@@ -2891,7 +2799,7 @@
28912799 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
28922800 	if (!wl)
28932801 		return 0;
2894
-	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2802
+	dev_info(chip->card->dev, "allow list rate for %04x:%04x is %i\n",
28952803 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
28962804 	chip->ac97_bus->clock = wl->value;
28972805 	return 1;
....@@ -2933,10 +2841,8 @@
29332841 
29342842 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
29352843 {
2936
-	struct snd_info_entry *entry;
2937
-
2938
-	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2939
-		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2844
+	snd_card_ro_proc_new(chip->card, "intel8x0", chip,
2845
+			     snd_intel8x0_proc_read);
29402846 }
29412847 
29422848 static int snd_intel8x0_dev_free(struct snd_device *device)
....@@ -2950,10 +2856,10 @@
29502856 	unsigned int offset;
29512857 };
29522858 
2953
-static unsigned int ich_codec_bits[3] = {
2859
+static const unsigned int ich_codec_bits[3] = {
29542860 	ICH_PCR, ICH_SCR, ICH_TCR
29552861 };
2956
-static unsigned int sis_codec_bits[3] = {
2862
+static const unsigned int sis_codec_bits[3] = {
29572863 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
29582864 };
29592865 
....@@ -2998,18 +2904,18 @@
29982904 	unsigned int i;
29992905 	unsigned int int_sta_masks;
30002906 	struct ichdev *ichdev;
3001
-	static struct snd_device_ops ops = {
2907
+	static const struct snd_device_ops ops = {
30022908 		.dev_free =	snd_intel8x0_dev_free,
30032909 	};
30042910 
3005
-	static unsigned int bdbars[] = {
2911
+	static const unsigned int bdbars[] = {
30062912 		3, /* DEVICE_INTEL */
30072913 		6, /* DEVICE_INTEL_ICH4 */
30082914 		3, /* DEVICE_SIS */
30092915 		6, /* DEVICE_ALI */
30102916 		4, /* DEVICE_NFORCE */
30112917 	};
3012
-	static struct ich_reg_info intel_regs[6] = {
2918
+	static const struct ich_reg_info intel_regs[6] = {
30132919 		{ ICH_PIINT, 0 },
30142920 		{ ICH_POINT, 0x10 },
30152921 		{ ICH_MCINT, 0x20 },
....@@ -3017,13 +2923,13 @@
30172923 		{ ICH_P2INT, 0x50 },
30182924 		{ ICH_SPINT, 0x60 },
30192925 	};
3020
-	static struct ich_reg_info nforce_regs[4] = {
2926
+	static const struct ich_reg_info nforce_regs[4] = {
30212927 		{ ICH_PIINT, 0 },
30222928 		{ ICH_POINT, 0x10 },
30232929 		{ ICH_MCINT, 0x20 },
30242930 		{ ICH_NVSPINT, 0x70 },
30252931 	};
3026
-	static struct ich_reg_info ali_regs[6] = {
2932
+	static const struct ich_reg_info ali_regs[6] = {
30272933 		{ ALI_INT_PCMIN, 0x40 },
30282934 		{ ALI_INT_PCMOUT, 0x50 },
30292935 		{ ALI_INT_MICIN, 0x60 },
....@@ -3031,7 +2937,7 @@
30312937 		{ ALI_INT_SPDIFIN, 0xa0 },
30322938 		{ ALI_INT_SPDIFOUT, 0xb0 },
30332939 	};
3034
-	struct ich_reg_info *tbl;
2940
+	const struct ich_reg_info *tbl;
30352941 
30362942 	*r_intel8x0 = NULL;
30372943 
....@@ -3057,6 +2963,12 @@
30572963 
30582964 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
30592965 
2966
+	/*
2967
+	 * Intel 82443MX running a 100MHz processor system bus has a hardware
2968
+	 * bug, which aborts PCI busmaster for audio transfer.  A workaround
2969
+	 * is to set the pages as non-cached.  For details, see the errata in
2970
+	 *     http://download.intel.com/design/chipsets/specupdt/24505108.pdf
2971
+	 */
30602972 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
30612973 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
30622974 		chip->fix_nocache = 1; /* enable workaround */
....@@ -3128,7 +3040,7 @@
31283040 
31293041 	/* allocate buffer descriptor lists */
31303042 	/* the start of each lists must be aligned to 8 bytes */
3131
-	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3043
+	if (snd_dma_alloc_pages(intel8x0_dma_type(chip), &pci->dev,
31323044 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
31333045 				&chip->bdbars) < 0) {
31343046 		snd_intel8x0_free(chip);
....@@ -3137,9 +3049,6 @@
31373049 	}
31383050 	/* tables must be aligned to 8 bytes here, but the kernel pages
31393051 	   are much bigger, so we don't care (on i386) */
3140
-	/* workaround for 440MX */
3141
-	if (chip->fix_nocache)
3142
-		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
31433052 	int_sta_masks = 0;
31443053 	for (i = 0; i < chip->bdbars_count; i++) {
31453054 		ichdev = &chip->ichd[i];
....@@ -3191,6 +3100,7 @@
31913100 		return -EBUSY;
31923101 	}
31933102 	chip->irq = pci->irq;
3103
+	card->sync_irq = chip->irq;
31943104 
31953105 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
31963106 		snd_intel8x0_free(chip);
....@@ -3230,12 +3140,12 @@
32303140 	{ 0, NULL },
32313141 };
32323142 
3233
-static struct snd_pci_quirk spdif_aclink_defaults[] = {
3143
+static const struct snd_pci_quirk spdif_aclink_defaults[] = {
32343144 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
32353145 	{ } /* end */
32363146 };
32373147 
3238
-/* look up white/black list for SPDIF over ac-link */
3148
+/* look up allow/deny list for SPDIF over ac-link */
32393149 static int check_default_spdif_aclink(struct pci_dev *pci)
32403150 {
32413151 	const struct snd_pci_quirk *w;