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/moduleparam.h>
  29 #include <sound/core.h>
  30 #include <sound/cs4231.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 int 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 __devinit 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                 snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id);
  78                 return 0;
  79         }
  80         if (irq[n] == SNDRV_AUTO_IRQ) {
  81                 snd_printk(KERN_ERR "%s: please specify irq\n", dev->bus_id);
  82                 return 0;
  83         }
  84         if (dma1[n] == SNDRV_AUTO_DMA) {
  85                 snd_printk(KERN_ERR "%s: please specify dma1\n", dev->bus_id);
  86                 return 0;
  87         }
  88         return 1;
  89 }
  90
  91 static int __devinit snd_cs4231_probe(struct device *dev, unsigned int n)
  92 {
  93         struct snd_card *card;
  94         struct snd_cs4231 *chip;
  95         struct snd_pcm *pcm;
  96         int error;
  97
  98         card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
  99         if (!card)
 100                 return -EINVAL;
 101
 102         error = snd_cs4231_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
 103                         CS4231_HW_DETECT, 0, &chip);
 104         if (error < 0)
 105                 goto out;
 106
 107         card->private_data = chip;
 108
 109         error = snd_cs4231_pcm(chip, 0, &pcm);
 110         if (error < 0)
 111                 goto out;
 112
 113         strcpy(card->driver, "CS4231");
 114         strcpy(card->shortname, pcm->name);
 115
 116         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 117                 pcm->name, chip->port, irq[n], dma1[n]);
 118         if (dma2[n] >= 0)
 119                 sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
 120
 121         error = snd_cs4231_mixer(chip);
 122         if (error < 0)
 123                 goto out;
 124
 125         error = snd_cs4231_timer(chip, 0, NULL);
 126         if (error < 0)
 127                 goto out;
 128
 129         if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
 130                 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
 131                         mpu_irq[n] = -1;
 132                 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
 133                                         mpu_port[n], 0, mpu_irq[n],
 134                                         mpu_irq[n] >= 0 ? IRQF_DISABLED : 0,
 135                                         NULL) < 0)
 136                         printk(KERN_WARNING "%s: MPU401 not detected\n", dev->bus_id);
 137         }
 138
 139         snd_card_set_dev(card, dev);
 140
 141         error = snd_card_register(card);
 142         if (error < 0)
 143                 goto out;
 144
 145         dev_set_drvdata(dev, card);
 146         return 0;
 147
 148 out:    snd_card_free(card);
 149         return error;
 150 }
 151
 152 static int __devexit snd_cs4231_remove(struct device *dev, unsigned int n)
 153 {
 154         snd_card_free(dev_get_drvdata(dev));
 155         dev_set_drvdata(dev, NULL);
 156         return 0;
 157 }
 158
 159 #ifdef CONFIG_PM
 160 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
 161 {
 162         struct snd_card *card = dev_get_drvdata(dev);
 163         struct snd_cs4231 *chip = card->private_data;
 164
 165         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 166         chip->suspend(chip);
 167         return 0;
 168 }
 169
 170 static int snd_cs4231_resume(struct device *dev, unsigned int n)
 171 {
 172         struct snd_card *card = dev_get_drvdata(dev);
 173         struct snd_cs4231 *chip = card->private_data;
 174
 175         chip->resume(chip);
 176         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 177         return 0;
 178 }
 179 #endif
 180
 181 static struct isa_driver snd_cs4231_driver = {
 182         .match          = snd_cs4231_match,
 183         .probe          = snd_cs4231_probe,
 184         .remove         = __devexit_p(snd_cs4231_remove),
 185 #ifdef CONFIG_PM
 186         .suspend        = snd_cs4231_suspend,
 187         .resume         = snd_cs4231_resume,
 188 #endif
 189         .driver         = {
 190                 .name   = DEV_NAME
 191         }
 192 };
 193
 194 static int __init alsa_card_cs4231_init(void)
 195 {
 196         return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
 197 }
 198
 199 static void __exit alsa_card_cs4231_exit(void)
 200 {
 201         isa_unregister_driver(&snd_cs4231_driver);
 202 }
 203
 204 module_init(alsa_card_cs4231_init);
 205 module_exit(alsa_card_cs4231_exit);