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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/sound/pci/cs4281.c
....@@ -1,22 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *  Driver for Cirrus Logic CS4281 based PCI soundcard
34  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
4
- *
5
- *
6
- *   This program is free software; you can redistribute it and/or modify
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- *   it under the terms of the GNU General Public License as published by
8
- *   the Free Software Foundation; either version 2 of the License, or
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- *   (at your option) any later version.
10
- *
11
- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *   GNU General Public License for more details.
15
- *
16
- *   You should have received a copy of the GNU General Public License
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- *   along with this program; if not, write to the Free Software
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- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19
- *
205  */
216 
227 #include <linux/io.h>
....@@ -709,7 +694,7 @@
709694 
710695 static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate)
711696 {
712
-	unsigned int val = ~0;
697
+	unsigned int val;
713698 	
714699 	if (real_rate)
715700 		*real_rate = rate;
....@@ -722,9 +707,8 @@
722707 	case 44100:	return 1;
723708 	case 48000:	return 0;
724709 	default:
725
-		goto __variable;
710
+		break;
726711 	}
727
-      __variable:
728712 	val = 1536000 / rate;
729713 	if (real_rate)
730714 		*real_rate = 1536000 / val;
....@@ -794,17 +778,6 @@
794778 		snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | BA0_FCR_FEN);
795779 	/* Clear FIFO Status and Interrupt Control Register */
796780 	snd_cs4281_pokeBA0(chip, dma->regFSIC, 0);
797
-}
798
-
799
-static int snd_cs4281_hw_params(struct snd_pcm_substream *substream,
800
-				struct snd_pcm_hw_params *hw_params)
801
-{
802
-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
803
-}
804
-
805
-static int snd_cs4281_hw_free(struct snd_pcm_substream *substream)
806
-{
807
-	return snd_pcm_lib_free_pages(substream);
808781 }
809782 
810783 static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream)
....@@ -954,9 +927,6 @@
954927 static const struct snd_pcm_ops snd_cs4281_playback_ops = {
955928 	.open =		snd_cs4281_playback_open,
956929 	.close =	snd_cs4281_playback_close,
957
-	.ioctl =	snd_pcm_lib_ioctl,
958
-	.hw_params =	snd_cs4281_hw_params,
959
-	.hw_free =	snd_cs4281_hw_free,
960930 	.prepare =	snd_cs4281_playback_prepare,
961931 	.trigger =	snd_cs4281_trigger,
962932 	.pointer =	snd_cs4281_pointer,
....@@ -965,9 +935,6 @@
965935 static const struct snd_pcm_ops snd_cs4281_capture_ops = {
966936 	.open =		snd_cs4281_capture_open,
967937 	.close =	snd_cs4281_capture_close,
968
-	.ioctl =	snd_pcm_lib_ioctl,
969
-	.hw_params =	snd_cs4281_hw_params,
970
-	.hw_free =	snd_cs4281_hw_free,
971938 	.prepare =	snd_cs4281_capture_prepare,
972939 	.trigger =	snd_cs4281_trigger,
973940 	.pointer =	snd_cs4281_pointer,
....@@ -990,8 +957,8 @@
990957 	strcpy(pcm->name, "CS4281");
991958 	chip->pcm = pcm;
992959 
993
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
994
-					      snd_dma_pci_data(chip->pci), 64*1024, 512*1024);
960
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
961
+				       64*1024, 512*1024);
995962 
996963 	return 0;
997964 }
....@@ -1097,7 +1064,7 @@
10971064 	struct snd_card *card = chip->card;
10981065 	struct snd_ac97_template ac97;
10991066 	int err;
1100
-	static struct snd_ac97_bus_ops ops = {
1067
+	static const struct snd_ac97_bus_ops ops = {
11011068 		.write = snd_cs4281_ac97_write,
11021069 		.read = snd_cs4281_ac97_read,
11031070 	};
....@@ -1162,11 +1129,11 @@
11621129 	return count;
11631130 }
11641131 
1165
-static struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = {
1132
+static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = {
11661133 	.read = snd_cs4281_BA0_read,
11671134 };
11681135 
1169
-static struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
1136
+static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
11701137 	.read = snd_cs4281_BA1_read,
11711138 };
11721139 
....@@ -1174,8 +1141,7 @@
11741141 {
11751142 	struct snd_info_entry *entry;
11761143 
1177
-	if (! snd_card_proc_new(chip->card, "cs4281", &entry))
1178
-		snd_info_set_text_ops(entry, chip, snd_cs4281_proc_read);
1144
+	snd_card_ro_proc_new(chip->card, "cs4281", chip, snd_cs4281_proc_read);
11791145 	if (! snd_card_proc_new(chip->card, "cs4281_BA0", &entry)) {
11801146 		entry->content = SNDRV_INFO_CONTENT_DATA;
11811147 		entry->private_data = chip;
....@@ -1302,9 +1268,6 @@
13021268 {
13031269 	snd_cs4281_free_gameport(chip);
13041270 
1305
-	if (chip->irq >= 0)
1306
-		synchronize_irq(chip->irq);
1307
-
13081271 	/* Mask interrupts */
13091272 	snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff);
13101273 	/* Stop the DLL Clock logic. */
....@@ -1341,7 +1304,7 @@
13411304 	struct cs4281 *chip;
13421305 	unsigned int tmp;
13431306 	int err;
1344
-	static struct snd_device_ops ops = {
1307
+	static const struct snd_device_ops ops = {
13451308 		.dev_free =	snd_cs4281_dev_free,
13461309 	};
13471310 
....@@ -1386,6 +1349,7 @@
13861349 		return -ENOMEM;
13871350 	}
13881351 	chip->irq = pci->irq;
1352
+	card->sync_irq = chip->irq;
13891353 
13901354 	tmp = snd_cs4281_chip_init(chip);
13911355 	if (tmp) {
....@@ -1634,7 +1598,6 @@
16341598 					BA0_HISR_DMA(1) |
16351599 					BA0_HISR_DMA(2) |
16361600 					BA0_HISR_DMA(3)));
1637
-	synchronize_irq(chip->irq);
16381601 
16391602 	return 0;
16401603 }
....@@ -1976,7 +1939,7 @@
19761939  */
19771940 #ifdef CONFIG_PM_SLEEP
19781941 
1979
-static int saved_regs[SUSPEND_REGISTERS] = {
1942
+static const int saved_regs[SUSPEND_REGISTERS] = {
19801943 	BA0_JSCTL,
19811944 	BA0_GPIOR,
19821945 	BA0_SSCR,
....@@ -2002,8 +1965,6 @@
20021965 	unsigned int i;
20031966 
20041967 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2005
-	snd_pcm_suspend_all(chip->pcm);
2006
-
20071968 	snd_ac97_suspend(chip->ac97);
20081969 	snd_ac97_suspend(chip->ac97_secondary);
20091970