sound/isa/cs423x/cs4231.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Generic driver for CS4231 chips
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
   6  *  Tugrul Galatali <galatalt@stuy.edu>
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/err.h>
  11 #include <linux/isa.h>
  12 #include <linux/time.h>
  13 #include <linux/wait.h>
  14 #include <linux/module.h>
  15 #include <sound/core.h>
  16 #include <sound/wss.h>
  17 #include <sound/mpu401.h>
  18 #include <sound/initval.h>
  19
  20 #define CRD_NAME "Generic CS4231"
  21 #define DEV_NAME "cs4231"
  22
  23 MODULE_DESCRIPTION(CRD_NAME);
  24 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  25 MODULE_LICENSE("GPL");
  26
  27 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  28 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  29 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  30 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  31 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
  32 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  33 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 9,11,12,15 */
  34 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  35 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  36
  37 module_param_array(index, int, NULL, 0444);
  38 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  39 module_param_array(id, charp, NULL, 0444);
  40 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  41 module_param_array(enable, bool, NULL, 0444);
  42 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  43 module_param_hw_array(port, long, ioport, NULL, 0444);
  44 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  45 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
  46 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
  47 module_param_hw_array(irq, int, irq, NULL, 0444);
  48 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  49 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
  50 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
  51 module_param_hw_array(dma1, int, dma, NULL, 0444);
  52 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  53 module_param_hw_array(dma2, int, dma, NULL, 0444);
  54 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  55
  56 static int snd_cs4231_match(struct device *dev, unsigned int n)
  57 {
  58         if (!enable[n])
  59                 return 0;
  60
  61         if (port[n] == SNDRV_AUTO_PORT) {
  62                 dev_err(dev, "please specify port\n");
  63                 return 0;
  64         }
  65         if (irq[n] == SNDRV_AUTO_IRQ) {
  66                 dev_err(dev, "please specify irq\n");
  67                 return 0;
  68         }
  69         if (dma1[n] == SNDRV_AUTO_DMA) {
  70                 dev_err(dev, "please specify dma1\n");
  71                 return 0;
  72         }
  73         return 1;
  74 }
  75
  76 static int snd_cs4231_probe(struct device *dev, unsigned int n)
  77 {
  78         struct snd_card *card;
  79         struct snd_wss *chip;
  80         int error;
  81
  82         error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
  83         if (error < 0)
  84                 return error;
  85
  86         error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
  87                         WSS_HW_DETECT, 0, &chip);
  88         if (error < 0)
  89                 return error;
  90
  91         card->private_data = chip;
  92
  93         error = snd_wss_pcm(chip, 0);
  94         if (error < 0)
  95                 return error;
  96
  97         strscpy(card->driver, "CS4231", sizeof(card->driver));
  98         strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
  99
 100         if (dma2[n] < 0)
 101                 scnprintf(card->longname, sizeof(card->longname),
 102                           "%s at 0x%lx, irq %d, dma %d",
 103                           chip->pcm->name, chip->port, irq[n], dma1[n]);
 104         else
 105                 scnprintf(card->longname, sizeof(card->longname),
 106                           "%s at 0x%lx, irq %d, dma %d&%d",
 107                           chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
 108
 109         error = snd_wss_mixer(chip);
 110         if (error < 0)
 111                 return error;
 112
 113         error = snd_wss_timer(chip, 0);
 114         if (error < 0)
 115                 return error;
 116
 117         if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
 118                 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
 119                         mpu_irq[n] = -1;
 120                 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
 121                                         mpu_port[n], 0, mpu_irq[n],
 122                                         NULL) < 0)
 123                         dev_warn(dev, "MPU401 not detected\n");
 124         }
 125
 126         error = snd_card_register(card);
 127         if (error < 0)
 128                 return error;
 129
 130         dev_set_drvdata(dev, card);
 131         return 0;
 132 }
 133
 134 #ifdef CONFIG_PM
 135 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
 136 {
 137         struct snd_card *card = dev_get_drvdata(dev);
 138         struct snd_wss *chip = card->private_data;
 139
 140         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 141         chip->suspend(chip);
 142         return 0;
 143 }
 144
 145 static int snd_cs4231_resume(struct device *dev, unsigned int n)
 146 {
 147         struct snd_card *card = dev_get_drvdata(dev);
 148         struct snd_wss *chip = card->private_data;
 149
 150         chip->resume(chip);
 151         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 152         return 0;
 153 }
 154 #endif
 155
 156 static struct isa_driver snd_cs4231_driver = {
 157         .match          = snd_cs4231_match,
 158         .probe          = snd_cs4231_probe,
 159 #ifdef CONFIG_PM
 160         .suspend        = snd_cs4231_suspend,
 161         .resume         = snd_cs4231_resume,
 162 #endif
 163         .driver         = {
 164                 .name   = DEV_NAME
 165         }
 166 };
 167
 168 module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);