release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/cs46xx/cs46xx.c

   1 /*
   2  *  The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 /*
  23   NOTES:
  24   - sometimes the sound is metallic and sibilant, unloading and
  25     reloading the module may solve this.
  26 */
  27
  28 #include <linux/pci.h>
  29 #include <linux/time.h>
  30 #include <linux/init.h>
  31 #include <linux/moduleparam.h>
  32 #include <sound/core.h>
  33 #include <sound/cs46xx.h>
  34 #include <sound/initval.h>
  35
  36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  37 MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
  38 MODULE_LICENSE("GPL");
  39 MODULE_SUPPORTED_DEVICE("{{Cirrus Logic,Sound Fusion (CS4280)},"
  40                 "{Cirrus Logic,Sound Fusion (CS4610)},"
  41                 "{Cirrus Logic,Sound Fusion (CS4612)},"
  42                 "{Cirrus Logic,Sound Fusion (CS4615)},"
  43                 "{Cirrus Logic,Sound Fusion (CS4622)},"
  44                 "{Cirrus Logic,Sound Fusion (CS4624)},"
  45                 "{Cirrus Logic,Sound Fusion (CS4630)}}");
  46
  47 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  48 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  49 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  50 static int external_amp[SNDRV_CARDS];
  51 static int thinkpad[SNDRV_CARDS];
  52 static int mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  53
  54 module_param_array(index, int, NULL, 0444);
  55 MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
  56 module_param_array(id, charp, NULL, 0444);
  57 MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
  58 module_param_array(enable, bool, NULL, 0444);
  59 MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
  60 module_param_array(external_amp, bool, NULL, 0444);
  61 MODULE_PARM_DESC(external_amp, "Force to enable external amplifer.");
  62 module_param_array(thinkpad, bool, NULL, 0444);
  63 MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
  64 module_param_array(mmap_valid, bool, NULL, 0444);
  65 MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
  66
  67 static DEFINE_PCI_DEVICE_TABLE(snd_cs46xx_ids) = {
  68         { PCI_VDEVICE(CIRRUS, 0x6001), 0, },   /* CS4280 */
  69         { PCI_VDEVICE(CIRRUS, 0x6003), 0, },   /* CS4612 */
  70         { PCI_VDEVICE(CIRRUS, 0x6004), 0, },   /* CS4615 */
  71         { 0, }
  72 };
  73
  74 MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
  75
  76 static int __devinit snd_card_cs46xx_probe(struct pci_dev *pci,
  77                                            const struct pci_device_id *pci_id)
  78 {
  79         static int dev;
  80         struct snd_card *card;
  81         struct snd_cs46xx *chip;
  82         int err;
  83
  84         if (dev >= SNDRV_CARDS)
  85                 return -ENODEV;
  86         if (!enable[dev]) {
  87                 dev++;
  88                 return -ENOENT;
  89         }
  90
  91         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
  92         if (err < 0)
  93                 return err;
  94         if ((err = snd_cs46xx_create(card, pci,
  95                                      external_amp[dev], thinkpad[dev],
  96                                      &chip)) < 0) {
  97                 snd_card_free(card);
  98                 return err;
  99         }
 100         card->private_data = chip;
 101         chip->accept_valid = mmap_valid[dev];
 102         if ((err = snd_cs46xx_pcm(chip, 0, NULL)) < 0) {
 103                 snd_card_free(card);
 104                 return err;
 105         }
 106 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 107         if ((err = snd_cs46xx_pcm_rear(chip,1, NULL)) < 0) {
 108                 snd_card_free(card);
 109                 return err;
 110         }
 111         if ((err = snd_cs46xx_pcm_iec958(chip,2,NULL)) < 0) {
 112                 snd_card_free(card);
 113                 return err;
 114         }
 115 #endif
 116         if ((err = snd_cs46xx_mixer(chip, 2)) < 0) {
 117                 snd_card_free(card);
 118                 return err;
 119         }
 120 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 121         if (chip->nr_ac97_codecs ==2) {
 122                 if ((err = snd_cs46xx_pcm_center_lfe(chip,3,NULL)) < 0) {
 123                         snd_card_free(card);
 124                         return err;
 125                 }
 126         }
 127 #endif
 128         if ((err = snd_cs46xx_midi(chip, 0, NULL)) < 0) {
 129                 snd_card_free(card);
 130                 return err;
 131         }
 132         if ((err = snd_cs46xx_start_dsp(chip)) < 0) {
 133                 snd_card_free(card);
 134                 return err;
 135         }
 136
 137
 138         snd_cs46xx_gameport(chip);
 139
 140         strcpy(card->driver, "CS46xx");
 141         strcpy(card->shortname, "Sound Fusion CS46xx");
 142         sprintf(card->longname, "%s at 0x%lx/0x%lx, irq %i",
 143                 card->shortname,
 144                 chip->ba0_addr,
 145                 chip->ba1_addr,
 146                 chip->irq);
 147
 148         if ((err = snd_card_register(card)) < 0) {
 149                 snd_card_free(card);
 150                 return err;
 151         }
 152
 153         pci_set_drvdata(pci, card);
 154         dev++;
 155         return 0;
 156 }
 157
 158 static void __devexit snd_card_cs46xx_remove(struct pci_dev *pci)
 159 {
 160         snd_card_free(pci_get_drvdata(pci));
 161         pci_set_drvdata(pci, NULL);
 162 }
 163
 164 static struct pci_driver driver = {
 165         .name = "Sound Fusion CS46xx",
 166         .id_table = snd_cs46xx_ids,
 167         .probe = snd_card_cs46xx_probe,
 168         .remove = __devexit_p(snd_card_cs46xx_remove),
 169 #ifdef CONFIG_PM
 170         .suspend = snd_cs46xx_suspend,
 171         .resume = snd_cs46xx_resume,
 172 #endif
 173 };
 174
 175 static int __init alsa_card_cs46xx_init(void)
 176 {
 177         return pci_register_driver(&driver);
 178 }
 179
 180 static void __exit alsa_card_cs46xx_exit(void)
 181 {
 182         pci_unregister_driver(&driver);
 183 }
 184
 185 module_init(alsa_card_cs46xx_init)
 186 module_exit(alsa_card_cs46xx_exit)