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
  26 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  27 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  28 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  29 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  30 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  31 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  32 static bool thinkpad[SNDRV_CARDS];                      /* Thinkpad special case */
  33
  34 module_param_array(index, int, NULL, 0444);
  35 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  36 module_param_array(id, charp, NULL, 0444);
  37 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  38 module_param_array(enable, bool, NULL, 0444);
  39 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  40 module_param_hw_array(port, long, ioport, NULL, 0444);
  41 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  42 module_param_hw_array(irq, int, irq, NULL, 0444);
  43 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  44 module_param_hw_array(dma1, int, dma, NULL, 0444);
  45 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  46 module_param_array(thinkpad, bool, NULL, 0444);
  47 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
  48
  49 static int snd_ad1848_match(struct device *dev, unsigned int n)
  50 {
  51         if (!enable[n])
  52                 return 0;
  53
  54         if (port[n] == SNDRV_AUTO_PORT) {
  55                 dev_err(dev, "please specify port\n");
  56                 return 0;
  57         }
  58         if (irq[n] == SNDRV_AUTO_IRQ) {
  59                 dev_err(dev, "please specify irq\n");
  60                 return 0;
  61         }
  62         if (dma1[n] == SNDRV_AUTO_DMA) {
  63                 dev_err(dev, "please specify dma1\n");
  64                 return 0;
  65         }
  66         return 1;
  67 }
  68
  69 static int snd_ad1848_probe(struct device *dev, unsigned int n)
  70 {
  71         struct snd_card *card;
  72         struct snd_wss *chip;
  73         int error;
  74
  75         error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
  76         if (error < 0)
  77                 return error;
  78
  79         error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
  80                         thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
  81                         0, &chip);
  82         if (error < 0)
  83                 return error;
  84
  85         card->private_data = chip;
  86
  87         error = snd_wss_pcm(chip, 0);
  88         if (error < 0)
  89                 return error;
  90
  91         error = snd_wss_mixer(chip);
  92         if (error < 0)
  93                 return error;
  94
  95         strscpy(card->driver, "AD1848", sizeof(card->driver));
  96         strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
  97
  98         if (!thinkpad[n])
  99                 scnprintf(card->longname, sizeof(card->longname),
 100                           "%s at 0x%lx, irq %d, dma %d",
 101                           chip->pcm->name, chip->port, irq[n], dma1[n]);
 102         else
 103                 scnprintf(card->longname, sizeof(card->longname),
 104                           "%s at 0x%lx, irq %d, dma %d [Thinkpad]",
 105                           chip->pcm->name, chip->port, irq[n], dma1[n]);
 106
 107         error = snd_card_register(card);
 108         if (error < 0)
 109                 return error;
 110
 111         dev_set_drvdata(dev, card);
 112         return 0;
 113 }
 114
 115 #ifdef CONFIG_PM
 116 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
 117 {
 118         struct snd_card *card = dev_get_drvdata(dev);
 119         struct snd_wss *chip = card->private_data;
 120
 121         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 122         chip->suspend(chip);
 123         return 0;
 124 }
 125
 126 static int snd_ad1848_resume(struct device *dev, unsigned int n)
 127 {
 128         struct snd_card *card = dev_get_drvdata(dev);
 129         struct snd_wss *chip = card->private_data;
 130
 131         chip->resume(chip);
 132         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 133         return 0;
 134 }
 135 #endif
 136
 137 static struct isa_driver snd_ad1848_driver = {
 138         .match          = snd_ad1848_match,
 139         .probe          = snd_ad1848_probe,
 140 #ifdef CONFIG_PM
 141         .suspend        = snd_ad1848_suspend,
 142         .resume         = snd_ad1848_resume,
 143 #endif
 144         .driver         = {
 145                 .name   = DEV_NAME
 146         }
 147 };
 148
 149 module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);