LXR linux/sound/pci/cs46xx/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_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
  70                           0, &card);
  71        if (err < 0)
  72                return err;
  73        err = snd_cs46xx_create(card, pci,
  74                                external_amp[dev], thinkpad[dev],
  75                                &chip);
  76        if (err < 0) {
  77                snd_card_free(card);
  78                return err;
  79        }
  80        card->private_data = chip;
  81        chip->accept_valid = mmap_valid[dev];
  82        err = snd_cs46xx_pcm(chip, 0);
  83        if (err < 0) {
  84                snd_card_free(card);
  85                return err;
  86        }
  87#ifdef CONFIG_SND_CS46XX_NEW_DSP
  88        err = snd_cs46xx_pcm_rear(chip, 1);
  89        if (err < 0) {
  90                snd_card_free(card);
  91                return err;
  92        }
  93        err = snd_cs46xx_pcm_iec958(chip, 2);
  94        if (err < 0) {
  95                snd_card_free(card);
  96                return err;
  97        }
  98#endif
  99        err = snd_cs46xx_mixer(chip, 2);
 100        if (err < 0) {
 101                snd_card_free(card);
 102                return err;
 103        }
 104#ifdef CONFIG_SND_CS46XX_NEW_DSP
 105        if (chip->nr_ac97_codecs ==2) {
 106                err = snd_cs46xx_pcm_center_lfe(chip, 3);
 107                if (err < 0) {
 108                        snd_card_free(card);
 109                        return err;
 110                }
 111        }
 112#endif
 113        err = snd_cs46xx_midi(chip, 0);
 114        if (err < 0) {
 115                snd_card_free(card);
 116                return err;
 117        }
 118        err = snd_cs46xx_start_dsp(chip);
 119        if (err < 0) {
 120                snd_card_free(card);
 121                return err;
 122        }
 123
 124
 125        snd_cs46xx_gameport(chip);
 126
 127        strcpy(card->driver, "CS46xx");
 128        strcpy(card->shortname, "Sound Fusion CS46xx");
 129        sprintf(card->longname, "%s at 0x%lx/0x%lx, irq %i",
 130                card->shortname,
 131                chip->ba0_addr,
 132                chip->ba1_addr,
 133                chip->irq);
 134
 135        err = snd_card_register(card);
 136        if (err < 0) {
 137                snd_card_free(card);
 138                return err;
 139        }
 140
 141        pci_set_drvdata(pci, card);
 142        dev++;
 143        return 0;
 144}
 145
 146static void snd_card_cs46xx_remove(struct pci_dev *pci)
 147{
 148        snd_card_free(pci_get_drvdata(pci));
 149}
 150
 151static struct pci_driver cs46xx_driver = {
 152        .name = KBUILD_MODNAME,
 153        .id_table = snd_cs46xx_ids,
 154        .probe = snd_card_cs46xx_probe,
 155        .remove = snd_card_cs46xx_remove,
 156#ifdef CONFIG_PM_SLEEP
 157        .driver = {
 158                .pm = &snd_cs46xx_pm,
 159        },
 160#endif
 161};
 162
 163module_pci_driver(cs46xx_driver);
 164