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hc
2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390 
 kernel/sound/pci/ac97/ac97_codec.c
....@@ -1,25 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
34  *  Universal interface for Audio Codec '97
45  *
56  *  For more details look to AC '97 component specification revision 2.2
67  *  by Intel Corporation (http://developer.intel.com).
7
- *
8
- *
9
- *   This program is free software; you can redistribute it and/or modify
10
- *   it under the terms of the GNU General Public License as published by
11
- *   the Free Software Foundation; either version 2 of the License, or
12
- *   (at your option) any later version.
13
- *
14
- *   This program is distributed in the hope that it will be useful,
15
- *   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.
18
- *
19
- *   You should have received a copy of the GNU General Public License
20
- *   along with this program; if not, write to the Free Software
21
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22
- *
238  */
249 
2510 #include <linux/delay.h>
....@@ -233,11 +218,11 @@
233218 	case AC97_ID_ST_AC97_ID4:
234219 		if (reg == 0x08)
235220 			return 0;
236
-		/* fall through */
221
+		fallthrough;
237222 	case AC97_ID_ST7597:
238223 		if (reg == 0x22 || reg == 0x7a)
239224 			return 1;
240
-		/* fall through */
225
+		fallthrough;
241226 	case AC97_ID_AK4540:
242227 	case AC97_ID_AK4542:
243228 		if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
....@@ -611,11 +596,6 @@
611596 	return err;
612597 }
613598 
614
-static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
615
-AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
616
-AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
617
-};
618
-
619599 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
620600 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
621601 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
....@@ -958,8 +938,8 @@
958938 	int codec = kcontrol->private_value & 3;
959939 	
960940 	mutex_lock(&ac97->page_mutex);
961
-	ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
962
-	ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
941
+	ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
942
+	ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
963943 	mutex_unlock(&ac97->page_mutex);
964944 	return 0;
965945 }
....@@ -1773,10 +1753,10 @@
17731753 {
17741754 	unsigned int result = 0;
17751755 	int i;
1776
-	static unsigned short ctl_bits[] = {
1756
+	static const unsigned short ctl_bits[] = {
17771757 		AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
17781758 	};
1779
-	static unsigned int rate_bits[] = {
1759
+	static const unsigned int rate_bits[] = {
17801760 		SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
17811761 	};
17821762 
....@@ -1914,12 +1894,13 @@
19141894  *
19151895  * Return: Zero if successful, or a negative error code on failure.
19161896  */
1917
-int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1897
+int snd_ac97_bus(struct snd_card *card, int num,
1898
+		 const struct snd_ac97_bus_ops *ops,
19181899 		 void *private_data, struct snd_ac97_bus **rbus)
19191900 {
19201901 	int err;
19211902 	struct snd_ac97_bus *bus;
1922
-	static struct snd_device_ops dev_ops = {
1903
+	static const struct snd_device_ops dev_ops = {
19231904 		.dev_free =	snd_ac97_bus_dev_free,
19241905 	};
19251906 
....@@ -1965,6 +1946,7 @@
19651946 		     snd_ac97_get_short_name(ac97));
19661947 	if ((err = device_register(&ac97->dev)) < 0) {
19671948 		ac97_err(ac97, "Can't register ac97 bus\n");
1949
+		put_device(&ac97->dev);
19681950 		ac97->dev.bus = NULL;
19691951 		return err;
19701952 	}
....@@ -2019,16 +2001,15 @@
20192001 	unsigned long end_time;
20202002 	unsigned int reg;
20212003 	const struct ac97_codec_id *pid;
2022
-	static struct snd_device_ops ops = {
2004
+	static const struct snd_device_ops ops = {
20232005 		.dev_free =	snd_ac97_dev_free,
20242006 		.dev_register =	snd_ac97_dev_register,
20252007 		.dev_disconnect =	snd_ac97_dev_disconnect,
20262008 	};
20272009 
2028
-	if (rac97)
2029
-		*rac97 = NULL;
2030
-	if (snd_BUG_ON(!bus || !template))
2010
+	if (snd_BUG_ON(!bus || !template || !rac97))
20312011 		return -EINVAL;
2012
+	*rac97 = NULL;
20322013 	if (snd_BUG_ON(template->num >= 4))
20332014 		return -EINVAL;
20342015 	if (bus->codec[template->num])
....@@ -2365,7 +2346,7 @@
23652346 
23662347 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
23672348 
2368
-static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2349
+static const struct ac97_power_reg power_regs[PWIDX_SIZE] = {
23692350 	[PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
23702351 	[PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
23712352 	[PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
....@@ -2848,7 +2829,7 @@
28482829 	int (*func)(struct snd_ac97 *);
28492830 };
28502831 
2851
-static struct quirk_table applicable_quirks[] = {
2832
+static const struct quirk_table applicable_quirks[] = {
28522833 	{ "none", NULL },
28532834 	{ "hp_only", tune_hp_only },
28542835 	{ "swap_hp", tune_swap_hp },
....@@ -2876,7 +2857,7 @@
28762857 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
28772858 {
28782859 	int i;
2879
-	struct quirk_table *q;
2860
+	const struct quirk_table *q;
28802861 
28812862 	for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
28822863 		q = &applicable_quirks[i];