LXR linux/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/module.h>
  29#include <sound/core.h>
  30#include <sound/wss.h>
  31#include <sound/mpu401.h>
  32#include <sound/initval.h>
  33
  34#define CRD_NAME "Generic CS4231"
  35#define DEV_NAME "cs4231"
  36
  37MODULE_DESCRIPTION(CRD_NAME);
  38MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  39MODULE_LICENSE("GPL");
  40MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
  41
  42static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  43static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  44static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  45static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  46static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
  47static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  48static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 9,11,12,15 */
  49static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  50static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  51
  52module_param_array(index, int, NULL, 0444);
  53MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  54module_param_array(id, charp, NULL, 0444);
  55MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  56module_param_array(enable, bool, NULL, 0444);
  57MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  58module_param_array(port, long, NULL, 0444);
  59MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  60module_param_array(mpu_port, long, NULL, 0444);
  61MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
  62module_param_array(irq, int, NULL, 0444);
  63MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  64module_param_array(mpu_irq, int, NULL, 0444);
  65MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
  66module_param_array(dma1, int, NULL, 0444);
  67MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  68module_param_array(dma2, int, NULL, 0444);
  69MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  70
  71static int 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                dev_err(dev, "please specify port\n");
  78                return 0;
  79        }
  80        if (irq[n] == SNDRV_AUTO_IRQ) {
  81                dev_err(dev, "please specify irq\n");
  82                return 0;
  83        }
  84        if (dma1[n] == SNDRV_AUTO_DMA) {
  85                dev_err(dev, "please specify dma1\n");
  86                return 0;
  87        }
  88        return 1;
  89}
  90
  91static int snd_cs4231_probe(struct device *dev, unsigned int n)
  92{
  93        struct snd_card *card;
  94        struct snd_wss *chip;
  95        struct snd_pcm *pcm;
  96        int error;
  97
  98        error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
  99        if (error < 0)
 100                return error;
 101
 102        error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
 103                        WSS_HW_DETECT, 0, &chip);
 104        if (error < 0)
 105                goto out;
 106
 107        card->private_data = chip;
 108
 109        error = snd_wss_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_wss_mixer(chip);
 122        if (error < 0)
 123                goto out;
 124
 125        error = snd_wss_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                                        NULL) < 0)
 135                        dev_warn(dev, "MPU401 not detected\n");
 136        }
 137
 138        snd_card_set_dev(card, dev);
 139
 140        error = snd_card_register(card);
 141        if (error < 0)
 142                goto out;
 143
 144        dev_set_drvdata(dev, card);
 145        return 0;
 146
 147out:    snd_card_free(card);
 148        return error;
 149}
 150
 151static int snd_cs4231_remove(struct device *dev, unsigned int n)
 152{
 153        snd_card_free(dev_get_drvdata(dev));
 154        dev_set_drvdata(dev, NULL);
 155        return 0;
 156}
 157
 158#ifdef CONFIG_PM
 159static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
 160{
 161        struct snd_card *card = dev_get_drvdata(dev);
 162        struct snd_wss *chip = card->private_data;
 163
 164        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 165        chip->suspend(chip);
 166        return 0;
 167}
 168
 169static int snd_cs4231_resume(struct device *dev, unsigned int n)
 170{
 171        struct snd_card *card = dev_get_drvdata(dev);
 172        struct snd_wss *chip = card->private_data;
 173
 174        chip->resume(chip);
 175        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 176        return 0;
 177}
 178#endif
 179
 180static struct isa_driver snd_cs4231_driver = {
 181        .match          = snd_cs4231_match,
 182        .probe          = snd_cs4231_probe,
 183        .remove         = snd_cs4231_remove,
 184#ifdef CONFIG_PM
 185        .suspend        = snd_cs4231_suspend,
 186        .resume         = snd_cs4231_resume,
 187#endif
 188        .driver         = {
 189                .name   = DEV_NAME
 190        }
 191};
 192
 193static int __init alsa_card_cs4231_init(void)
 194{
 195        return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
 196}
 197
 198static void __exit alsa_card_cs4231_exit(void)
 199{
 200        isa_unregister_driver(&snd_cs4231_driver);
 201}
 202
 203module_init(alsa_card_cs4231_init);
 204module_exit(alsa_card_cs4231_exit);
 205