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Linux/sound/isa/cs423x/cs4231.c

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  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 
 37 MODULE_DESCRIPTION(CRD_NAME);
 38 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 39 MODULE_LICENSE("GPL");
 40 MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
 41 
 42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 44 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 45 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
 46 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
 47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
 48 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 9,11,12,15 */
 49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
 50 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
 51 
 52 module_param_array(index, int, NULL, 0444);
 53 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
 54 module_param_array(id, charp, NULL, 0444);
 55 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
 56 module_param_array(enable, bool, NULL, 0444);
 57 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
 58 module_param_array(port, long, NULL, 0444);
 59 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 60 module_param_array(mpu_port, long, NULL, 0444);
 61 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
 62 module_param_array(irq, int, NULL, 0444);
 63 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 64 module_param_array(mpu_irq, int, NULL, 0444);
 65 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
 66 module_param_array(dma1, int, NULL, 0444);
 67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
 68 module_param_array(dma2, int, NULL, 0444);
 69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
 70 
 71 static 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 
 91 static int snd_cs4231_probe(struct device *dev, unsigned int n)
 92 {
 93         struct snd_card *card;
 94         struct snd_wss *chip;
 95         int error;
 96 
 97         error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
 98         if (error < 0)
 99                 return error;
100 
101         error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
102                         WSS_HW_DETECT, 0, &chip);
103         if (error < 0)
104                 goto out;
105 
106         card->private_data = chip;
107 
108         error = snd_wss_pcm(chip, 0);
109         if (error < 0)
110                 goto out;
111 
112         strcpy(card->driver, "CS4231");
113         strcpy(card->shortname, chip->pcm->name);
114 
115         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
116                 chip->pcm->name, chip->port, irq[n], dma1[n]);
117         if (dma2[n] >= 0)
118                 sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
119 
120         error = snd_wss_mixer(chip);
121         if (error < 0)
122                 goto out;
123 
124         error = snd_wss_timer(chip, 0);
125         if (error < 0)
126                 goto out;
127 
128         if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
129                 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
130                         mpu_irq[n] = -1;
131                 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
132                                         mpu_port[n], 0, mpu_irq[n],
133                                         NULL) < 0)
134                         dev_warn(dev, "MPU401 not detected\n");
135         }
136 
137         error = snd_card_register(card);
138         if (error < 0)
139                 goto out;
140 
141         dev_set_drvdata(dev, card);
142         return 0;
143 
144 out:    snd_card_free(card);
145         return error;
146 }
147 
148 static int snd_cs4231_remove(struct device *dev, unsigned int n)
149 {
150         snd_card_free(dev_get_drvdata(dev));
151         return 0;
152 }
153 
154 #ifdef CONFIG_PM
155 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
156 {
157         struct snd_card *card = dev_get_drvdata(dev);
158         struct snd_wss *chip = card->private_data;
159 
160         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
161         chip->suspend(chip);
162         return 0;
163 }
164 
165 static int snd_cs4231_resume(struct device *dev, unsigned int n)
166 {
167         struct snd_card *card = dev_get_drvdata(dev);
168         struct snd_wss *chip = card->private_data;
169 
170         chip->resume(chip);
171         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
172         return 0;
173 }
174 #endif
175 
176 static struct isa_driver snd_cs4231_driver = {
177         .match          = snd_cs4231_match,
178         .probe          = snd_cs4231_probe,
179         .remove         = snd_cs4231_remove,
180 #ifdef CONFIG_PM
181         .suspend        = snd_cs4231_suspend,
182         .resume         = snd_cs4231_resume,
183 #endif
184         .driver         = {
185                 .name   = DEV_NAME
186         }
187 };
188 
189 static int __init alsa_card_cs4231_init(void)
190 {
191         return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
192 }
193 
194 static void __exit alsa_card_cs4231_exit(void)
195 {
196         isa_unregister_driver(&snd_cs4231_driver);
197 }
198 
199 module_init(alsa_card_cs4231_init);
200 module_exit(alsa_card_cs4231_exit);
201 

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