xref: /openbmc/linux/sound/pci/cs46xx/cs46xx.c (revision 55fd7e02)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards
4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5  */
6 
7 /*
8   NOTES:
9   - sometimes the sound is metallic and sibilant, unloading and
10     reloading the module may solve this.
11 */
12 
13 #include <linux/pci.h>
14 #include <linux/time.h>
15 #include <linux/init.h>
16 #include <linux/module.h>
17 #include <sound/core.h>
18 #include "cs46xx.h"
19 #include <sound/initval.h>
20 
21 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
22 MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
23 MODULE_LICENSE("GPL");
24 MODULE_SUPPORTED_DEVICE("{{Cirrus Logic,Sound Fusion (CS4280)},"
25 		"{Cirrus Logic,Sound Fusion (CS4610)},"
26 		"{Cirrus Logic,Sound Fusion (CS4612)},"
27 		"{Cirrus Logic,Sound Fusion (CS4615)},"
28 		"{Cirrus Logic,Sound Fusion (CS4622)},"
29 		"{Cirrus Logic,Sound Fusion (CS4624)},"
30 		"{Cirrus Logic,Sound Fusion (CS4630)}}");
31 
32 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
33 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
34 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
35 static bool external_amp[SNDRV_CARDS];
36 static bool thinkpad[SNDRV_CARDS];
37 static bool mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
38 
39 module_param_array(index, int, NULL, 0444);
40 MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
41 module_param_array(id, charp, NULL, 0444);
42 MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
43 module_param_array(enable, bool, NULL, 0444);
44 MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
45 module_param_array(external_amp, bool, NULL, 0444);
46 MODULE_PARM_DESC(external_amp, "Force to enable external amplifier.");
47 module_param_array(thinkpad, bool, NULL, 0444);
48 MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
49 module_param_array(mmap_valid, bool, NULL, 0444);
50 MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
51 
52 static const struct pci_device_id snd_cs46xx_ids[] = {
53 	{ PCI_VDEVICE(CIRRUS, 0x6001), 0, },   /* CS4280 */
54 	{ PCI_VDEVICE(CIRRUS, 0x6003), 0, },   /* CS4612 */
55 	{ PCI_VDEVICE(CIRRUS, 0x6004), 0, },   /* CS4615 */
56 	{ 0, }
57 };
58 
59 MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
60 
61 static int snd_card_cs46xx_probe(struct pci_dev *pci,
62 				 const struct pci_device_id *pci_id)
63 {
64 	static int dev;
65 	struct snd_card *card;
66 	struct snd_cs46xx *chip;
67 	int err;
68 
69 	if (dev >= SNDRV_CARDS)
70 		return -ENODEV;
71 	if (!enable[dev]) {
72 		dev++;
73 		return -ENOENT;
74 	}
75 
76 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
77 			   0, &card);
78 	if (err < 0)
79 		return err;
80 	if ((err = snd_cs46xx_create(card, pci,
81 				     external_amp[dev], thinkpad[dev],
82 				     &chip)) < 0) {
83 		snd_card_free(card);
84 		return err;
85 	}
86 	card->private_data = chip;
87 	chip->accept_valid = mmap_valid[dev];
88 	if ((err = snd_cs46xx_pcm(chip, 0)) < 0) {
89 		snd_card_free(card);
90 		return err;
91 	}
92 #ifdef CONFIG_SND_CS46XX_NEW_DSP
93 	if ((err = snd_cs46xx_pcm_rear(chip, 1)) < 0) {
94 		snd_card_free(card);
95 		return err;
96 	}
97 	if ((err = snd_cs46xx_pcm_iec958(chip, 2)) < 0) {
98 		snd_card_free(card);
99 		return err;
100 	}
101 #endif
102 	if ((err = snd_cs46xx_mixer(chip, 2)) < 0) {
103 		snd_card_free(card);
104 		return err;
105 	}
106 #ifdef CONFIG_SND_CS46XX_NEW_DSP
107 	if (chip->nr_ac97_codecs ==2) {
108 		if ((err = snd_cs46xx_pcm_center_lfe(chip, 3)) < 0) {
109 			snd_card_free(card);
110 			return err;
111 		}
112 	}
113 #endif
114 	if ((err = snd_cs46xx_midi(chip, 0)) < 0) {
115 		snd_card_free(card);
116 		return err;
117 	}
118 	if ((err = snd_cs46xx_start_dsp(chip)) < 0) {
119 		snd_card_free(card);
120 		return err;
121 	}
122 
123 
124 	snd_cs46xx_gameport(chip);
125 
126 	strcpy(card->driver, "CS46xx");
127 	strcpy(card->shortname, "Sound Fusion CS46xx");
128 	sprintf(card->longname, "%s at 0x%lx/0x%lx, irq %i",
129 		card->shortname,
130 		chip->ba0_addr,
131 		chip->ba1_addr,
132 		chip->irq);
133 
134 	if ((err = snd_card_register(card)) < 0) {
135 		snd_card_free(card);
136 		return err;
137 	}
138 
139 	pci_set_drvdata(pci, card);
140 	dev++;
141 	return 0;
142 }
143 
144 static void snd_card_cs46xx_remove(struct pci_dev *pci)
145 {
146 	snd_card_free(pci_get_drvdata(pci));
147 }
148 
149 static struct pci_driver cs46xx_driver = {
150 	.name = KBUILD_MODNAME,
151 	.id_table = snd_cs46xx_ids,
152 	.probe = snd_card_cs46xx_probe,
153 	.remove = snd_card_cs46xx_remove,
154 #ifdef CONFIG_PM_SLEEP
155 	.driver = {
156 		.pm = &snd_cs46xx_pm,
157 	},
158 #endif
159 };
160 
161 module_pci_driver(cs46xx_driver);
162