sound/isa/cs423x/cs4231.c

   1 /*
   2  *  Generic driver for CS4231 chips
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
   5  *  Tugrul Galatali <galatalt@stuy.edu>
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  *
  21  */
  22
  23 #include <linux/init.h>
  24 #include <linux/err.h>
  25 #include <linux/isa.h>
  26 #include <linux/time.h>
  27 #include <linux/wait.h>
  28 #include <linux/module.h>
  29 #include <sound/core.h>
  30 #include <sound/wss.h>
  31 #include <sound/mpu401.h>
  32 #include <sound/initval.h>
  33
  34 #define CRD_NAME "Generic CS4231"
  35 #define DEV_NAME "cs4231"
  36
  37 MODULE_DESCRIPTION(CRD_NAME);
  38 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  39 MODULE_LICENSE("GPL");
  40 MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
  41
  42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  44 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  45 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  46 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
  47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  48 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 9,11,12,15 */
  49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  50 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  51
  52 module_param_array(index, int, NULL, 0444);
  53 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  54 module_param_array(id, charp, NULL, 0444);
  55 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  56 module_param_array(enable, bool, NULL, 0444);
  57 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  58 module_param_array(port, long, NULL, 0444);
  59 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  60 module_param_array(mpu_port, long, NULL, 0444);
  61 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
  62 module_param_array(irq, int, NULL, 0444);
  63 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  64 module_param_array(mpu_irq, int, NULL, 0444);
  65 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
  66 module_param_array(dma1, int, NULL, 0444);
  67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  68 module_param_array(dma2, int, NULL, 0444);
  69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  70
  71 static int snd_cs4231_match(struct device *dev, unsigned int n)
  72 {
  73         if (!enable[n])
  74                 return 0;
  75
  76         if (port[n] == SNDRV_AUTO_PORT) {
  77                 dev_err(dev, "please specify port\n");
  78                 return 0;
  79         }
  80         if (irq[n] == SNDRV_AUTO_IRQ) {
  81                 dev_err(dev, "please specify irq\n");
  82                 return 0;
  83         }
  84         if (dma1[n] == SNDRV_AUTO_DMA) {
  85                 dev_err(dev, "please specify dma1\n");
  86                 return 0;
  87         }
  88         return 1;
  89 }
  90
  91 static int snd_cs4231_probe(struct device *dev, unsigned int n)
  92 {
  93         struct snd_card *card;
  94         struct snd_wss *chip;
  95         int error;
  96
  97         error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
  98         if (error < 0)
  99                 return error;
 100
 101         error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
 102                         WSS_HW_DETECT, 0, &chip);
 103         if (error < 0)
 104                 goto out;
 105
 106         card->private_data = chip;
 107
 108         error = snd_wss_pcm(chip, 0);
 109         if (error < 0)
 110                 goto out;
 111
 112         strcpy(card->driver, "CS4231");
 113         strcpy(card->shortname, chip->pcm->name);
 114
 115         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 116                 chip->pcm->name, chip->port, irq[n], dma1[n]);
 117         if (dma2[n] >= 0)
 118                 sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
 119
 120         error = snd_wss_mixer(chip);
 121         if (error < 0)
 122                 goto out;
 123
 124         error = snd_wss_timer(chip, 0);
 125         if (error < 0)
 126                 goto out;
 127
 128         if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
 129                 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
 130                         mpu_irq[n] = -1;
 131                 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
 132                                         mpu_port[n], 0, mpu_irq[n],
 133                                         NULL) < 0)
 134                         dev_warn(dev, "MPU401 not detected\n");
 135         }
 136
 137         error = snd_card_register(card);
 138         if (error < 0)
 139                 goto out;
 140
 141         dev_set_drvdata(dev, card);
 142         return 0;
 143
 144 out:    snd_card_free(card);
 145         return error;
 146 }
 147
 148 static int snd_cs4231_remove(struct device *dev, unsigned int n)
 149 {
 150         snd_card_free(dev_get_drvdata(dev));
 151         return 0;
 152 }
 153
 154 #ifdef CONFIG_PM
 155 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
 156 {
 157         struct snd_card *card = dev_get_drvdata(dev);
 158         struct snd_wss *chip = card->private_data;
 159
 160         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 161         chip->suspend(chip);
 162         return 0;
 163 }
 164
 165 static int snd_cs4231_resume(struct device *dev, unsigned int n)
 166 {
 167         struct snd_card *card = dev_get_drvdata(dev);
 168         struct snd_wss *chip = card->private_data;
 169
 170         chip->resume(chip);
 171         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 172         return 0;
 173 }
 174 #endif
 175
 176 static struct isa_driver snd_cs4231_driver = {
 177         .match          = snd_cs4231_match,
 178         .probe          = snd_cs4231_probe,
 179         .remove         = snd_cs4231_remove,
 180 #ifdef CONFIG_PM
 181         .suspend        = snd_cs4231_suspend,
 182         .resume         = snd_cs4231_resume,
 183 #endif
 184         .driver         = {
 185                 .name   = DEV_NAME
 186         }
 187 };
 188
 189 static int __init alsa_card_cs4231_init(void)
 190 {
 191         return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
 192 }
 193
 194 static void __exit alsa_card_cs4231_exit(void)
 195 {
 196         isa_unregister_driver(&snd_cs4231_driver);
 197 }
 198
 199 module_init(alsa_card_cs4231_init);
 200 module_exit(alsa_card_cs4231_exit);