cs46xx.c

  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(&pci->dev, index[dev], id[dev], THIS_MODULE,
 70				sizeof(*chip), &card);
 71	if (err < 0)
 72		return err;
 73	chip = card->private_data;
 74	err = snd_cs46xx_create(card, pci,
 75				external_amp[dev], 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, 0);
 81	if (err < 0)
 82		goto error;
 83#ifdef CONFIG_SND_CS46XX_NEW_DSP
 84	err = snd_cs46xx_pcm_rear(chip, 1);
 85	if (err < 0)
 86		goto error;
 87	err = snd_cs46xx_pcm_iec958(chip, 2);
 88	if (err < 0)
 89		goto error;
 90#endif
 91	err = snd_cs46xx_mixer(chip, 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, 3);
 97		if (err < 0)
 98			goto error;
 99	}
100#endif
101	err = snd_cs46xx_midi(chip, 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(card->longname, "%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(pci, 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);