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
21MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
22MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
23MODULE_LICENSE("GPL");
24
25static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
26static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
28static bool external_amp[SNDRV_CARDS];
29static bool thinkpad[SNDRV_CARDS];
30static bool mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
31
32module_param_array(index, int, NULL, 0444);
33MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
34module_param_array(id, charp, NULL, 0444);
35MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
36module_param_array(enable, bool, NULL, 0444);
37MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
38module_param_array(external_amp, bool, NULL, 0444);
39MODULE_PARM_DESC(external_amp, "Force to enable external amplifier.");
40module_param_array(thinkpad, bool, NULL, 0444);
41MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
42module_param_array(mmap_valid, bool, NULL, 0444);
43MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
44
45static const struct pci_device_id snd_cs46xx_ids[] = {
46 { PCI_VDEVICE(CIRRUS, 0x6001), 0, }, /* CS4280 */
47 { PCI_VDEVICE(CIRRUS, 0x6003), 0, }, /* CS4612 */
48 { PCI_VDEVICE(CIRRUS, 0x6004), 0, }, /* CS4615 */
49 { 0, }
50};
51
52MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
53
54static int snd_card_cs46xx_probe(struct pci_dev *pci,
55 const struct pci_device_id *pci_id)
56{
57 static int dev;
58 struct snd_card *card;
59 struct snd_cs46xx *chip;
60 int err;
61
62 if (dev >= SNDRV_CARDS)
63 return -ENODEV;
64 if (!enable[dev]) {
65 dev++;
66 return -ENOENT;
67 }
68
69 err = snd_devm_card_new(parent: &pci->dev, idx: index[dev], xid: id[dev], THIS_MODULE,
70 extra_size: sizeof(*chip), card_ret: &card);
71 if (err < 0)
72 return err;
73 chip = card->private_data;
74 err = snd_cs46xx_create(card, pci,
75 external_amp: external_amp[dev], thinkpad: thinkpad[dev]);
76 if (err < 0)
77 goto error;
78 card->private_data = chip;
79 chip->accept_valid = mmap_valid[dev];
80 err = snd_cs46xx_pcm(chip, device: 0);
81 if (err < 0)
82 goto error;
83#ifdef CONFIG_SND_CS46XX_NEW_DSP
84 err = snd_cs46xx_pcm_rear(chip, device: 1);
85 if (err < 0)
86 goto error;
87 err = snd_cs46xx_pcm_iec958(chip, device: 2);
88 if (err < 0)
89 goto error;
90#endif
91 err = snd_cs46xx_mixer(chip, spdif_device: 2);
92 if (err < 0)
93 goto error;
94#ifdef CONFIG_SND_CS46XX_NEW_DSP
95 if (chip->nr_ac97_codecs ==2) {
96 err = snd_cs46xx_pcm_center_lfe(chip, device: 3);
97 if (err < 0)
98 goto error;
99 }
100#endif
101 err = snd_cs46xx_midi(chip, device: 0);
102 if (err < 0)
103 goto error;
104 err = snd_cs46xx_start_dsp(chip);
105 if (err < 0)
106 goto error;
107
108 snd_cs46xx_gameport(chip);
109
110 strscpy(card->driver, "CS46xx");
111 strscpy(card->shortname, "Sound Fusion CS46xx");
112 sprintf(buf: card->longname, fmt: "%s at 0x%lx/0x%lx, irq %i",
113 card->shortname,
114 chip->ba0_addr,
115 chip->ba1_addr,
116 chip->irq);
117
118 err = snd_card_register(card);
119 if (err < 0)
120 goto error;
121
122 pci_set_drvdata(pdev: pci, data: card);
123 dev++;
124 return 0;
125
126 error:
127 snd_card_free(card);
128 return err;
129}
130
131static struct pci_driver cs46xx_driver = {
132 .name = KBUILD_MODNAME,
133 .id_table = snd_cs46xx_ids,
134 .probe = snd_card_cs46xx_probe,
135#ifdef CONFIG_PM_SLEEP
136 .driver = {
137 .pm = &snd_cs46xx_pm,
138 },
139#endif
140};
141
142module_pci_driver(cs46xx_driver);
143

source code of linux/sound/pci/cs46xx/cs46xx.c