sound/isa/ad1848/ad1848.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
   4  *  Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
   5  *                   Jaroslav Kysela <perex@perex.cz>
   6  *  Based on card-4232.c by Jaroslav Kysela <perex@perex.cz>
   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/initval.h>
  18
  19 #define CRD_NAME "Generic AD1848/AD1847/CS4248"
  20 #define DEV_NAME "ad1848"
  21
  22 MODULE_DESCRIPTION(CRD_NAME);
  23 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
  24 MODULE_LICENSE("GPL");
  25 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
  26                 "{Analog Devices,AD1847},"
  27                 "{Crystal Semiconductors,CS4248}}");
  28
  29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  32 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  33 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  34 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  35 static bool thinkpad[SNDRV_CARDS];                      /* Thinkpad special case */
  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(irq, int, irq, NULL, 0444);
  46 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  47 module_param_hw_array(dma1, int, dma, NULL, 0444);
  48 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  49 module_param_array(thinkpad, bool, NULL, 0444);
  50 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
  51
  52 static int snd_ad1848_match(struct device *dev, unsigned int n)
  53 {
  54         if (!enable[n])
  55                 return 0;
  56
  57         if (port[n] == SNDRV_AUTO_PORT) {
  58                 dev_err(dev, "please specify port\n");
  59                 return 0;
  60         }
  61         if (irq[n] == SNDRV_AUTO_IRQ) {
  62                 dev_err(dev, "please specify irq\n");
  63                 return 0;
  64         }
  65         if (dma1[n] == SNDRV_AUTO_DMA) {
  66                 dev_err(dev, "please specify dma1\n");
  67                 return 0;
  68         }
  69         return 1;
  70 }
  71
  72 static int snd_ad1848_probe(struct device *dev, unsigned int n)
  73 {
  74         struct snd_card *card;
  75         struct snd_wss *chip;
  76         int error;
  77
  78         error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
  79         if (error < 0)
  80                 return error;
  81
  82         error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
  83                         thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
  84                         0, &chip);
  85         if (error < 0)
  86                 goto out;
  87
  88         card->private_data = chip;
  89
  90         error = snd_wss_pcm(chip, 0);
  91         if (error < 0)
  92                 goto out;
  93
  94         error = snd_wss_mixer(chip);
  95         if (error < 0)
  96                 goto out;
  97
  98         strlcpy(card->driver, "AD1848", sizeof(card->driver));
  99         strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
 100
 101         if (!thinkpad[n])
 102                 snprintf(card->longname, sizeof(card->longname),
 103                          "%s at 0x%lx, irq %d, dma %d",
 104                          chip->pcm->name, chip->port, irq[n], dma1[n]);
 105         else
 106                 snprintf(card->longname, sizeof(card->longname),
 107                          "%s at 0x%lx, irq %d, dma %d [Thinkpad]",
 108                          chip->pcm->name, chip->port, irq[n], dma1[n]);
 109
 110         error = snd_card_register(card);
 111         if (error < 0)
 112                 goto out;
 113
 114         dev_set_drvdata(dev, card);
 115         return 0;
 116
 117 out:    snd_card_free(card);
 118         return error;
 119 }
 120
 121 static int snd_ad1848_remove(struct device *dev, unsigned int n)
 122 {
 123         snd_card_free(dev_get_drvdata(dev));
 124         return 0;
 125 }
 126
 127 #ifdef CONFIG_PM
 128 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
 129 {
 130         struct snd_card *card = dev_get_drvdata(dev);
 131         struct snd_wss *chip = card->private_data;
 132
 133         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 134         chip->suspend(chip);
 135         return 0;
 136 }
 137
 138 static int snd_ad1848_resume(struct device *dev, unsigned int n)
 139 {
 140         struct snd_card *card = dev_get_drvdata(dev);
 141         struct snd_wss *chip = card->private_data;
 142
 143         chip->resume(chip);
 144         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 145         return 0;
 146 }
 147 #endif
 148
 149 static struct isa_driver snd_ad1848_driver = {
 150         .match          = snd_ad1848_match,
 151         .probe          = snd_ad1848_probe,
 152         .remove         = snd_ad1848_remove,
 153 #ifdef CONFIG_PM
 154         .suspend        = snd_ad1848_suspend,
 155         .resume         = snd_ad1848_resume,
 156 #endif
 157         .driver         = {
 158                 .name   = DEV_NAME
 159         }
 160 };
 161
 162 module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);