LXR linux/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
  22MODULE_DESCRIPTION(CRD_NAME);
  23MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
  24MODULE_LICENSE("GPL");
  25MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
  26                "{Analog Devices,AD1847},"
  27                "{Crystal Semiconductors,CS4248}}");
  28
  29static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  30static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  31static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  32static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  33static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  34static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  35static bool thinkpad[SNDRV_CARDS];                      /* Thinkpad special case */
  36
  37module_param_array(index, int, NULL, 0444);
  38MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  39module_param_array(id, charp, NULL, 0444);
  40MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  41module_param_array(enable, bool, NULL, 0444);
  42MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  43module_param_hw_array(port, long, ioport, NULL, 0444);
  44MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  45module_param_hw_array(irq, int, irq, NULL, 0444);
  46MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  47module_param_hw_array(dma1, int, dma, NULL, 0444);
  48MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  49module_param_array(thinkpad, bool, NULL, 0444);
  50MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
  51
  52static 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
  72static 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
 117out:    snd_card_free(card);
 118        return error;
 119}
 120
 121static 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
 128static 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
 138static 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
 149static 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
 162module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);
 163