1 /* 2 * Generic driver for CS4231 chips 3 * Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h> 24 #include <linux/init.h> 25 #include <linux/time.h> 26 #include <linux/wait.h> 27 #include <linux/moduleparam.h> 28 #include <sound/core.h> 29 #include <sound/cs4231.h> 30 #include <sound/mpu401.h> 31 #include <sound/initval.h> 32 33 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 34 MODULE_DESCRIPTION("Generic CS4231"); 35 MODULE_LICENSE("GPL"); 36 MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); 37 38 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 39 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 40 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 41 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 42 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 44 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ 45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 46 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 47 48 module_param_array(index, int, NULL, 0444); 49 MODULE_PARM_DESC(index, "Index value for CS4231 soundcard."); 50 module_param_array(id, charp, NULL, 0444); 51 MODULE_PARM_DESC(id, "ID string for CS4231 soundcard."); 52 module_param_array(enable, bool, NULL, 0444); 53 MODULE_PARM_DESC(enable, "Enable CS4231 soundcard."); 54 module_param_array(port, long, NULL, 0444); 55 MODULE_PARM_DESC(port, "Port # for CS4231 driver."); 56 module_param_array(mpu_port, long, NULL, 0444); 57 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver."); 58 module_param_array(irq, int, NULL, 0444); 59 MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver."); 60 module_param_array(mpu_irq, int, NULL, 0444); 61 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver."); 62 module_param_array(dma1, int, NULL, 0444); 63 MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver."); 64 module_param_array(dma2, int, NULL, 0444); 65 MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver."); 66 67 static struct snd_card *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; 68 69 70 static int __init snd_card_cs4231_probe(int dev) 71 { 72 struct snd_card *card; 73 struct snd_card_cs4231 *acard; 74 struct snd_pcm *pcm = NULL; 75 struct snd_cs4231 *chip; 76 int err; 77 78 if (port[dev] == SNDRV_AUTO_PORT) { 79 snd_printk(KERN_ERR "specify port\n"); 80 return -EINVAL; 81 } 82 if (irq[dev] == SNDRV_AUTO_IRQ) { 83 snd_printk(KERN_ERR "specify irq\n"); 84 return -EINVAL; 85 } 86 if (dma1[dev] == SNDRV_AUTO_DMA) { 87 snd_printk(KERN_ERR "specify dma1\n"); 88 return -EINVAL; 89 } 90 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 91 if (card == NULL) 92 return -ENOMEM; 93 acard = (struct snd_card_cs4231 *)card->private_data; 94 if ((err = snd_cs4231_create(card, port[dev], -1, 95 irq[dev], 96 dma1[dev], 97 dma2[dev], 98 CS4231_HW_DETECT, 99 0, &chip)) < 0) 100 goto _err; 101 102 if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) 103 goto _err; 104 105 strcpy(card->driver, "CS4231"); 106 strcpy(card->shortname, pcm->name); 107 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 108 pcm->name, chip->port, irq[dev], dma1[dev]); 109 if (dma2[dev] >= 0) 110 sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]); 111 112 if ((err = snd_cs4231_mixer(chip)) < 0) 113 goto _err; 114 if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) 115 goto _err; 116 117 if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) { 118 if (mpu_irq[dev] == SNDRV_AUTO_IRQ) 119 mpu_irq[dev] = -1; 120 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, 121 mpu_port[dev], 0, 122 mpu_irq[dev], 123 mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0, 124 NULL) < 0) 125 printk(KERN_WARNING "cs4231: MPU401 not detected\n"); 126 } 127 128 if ((err = snd_card_set_generic_dev(card)) < 0) 129 goto _err; 130 131 if ((err = snd_card_register(card)) < 0) 132 goto _err; 133 snd_cs4231_cards[dev] = card; 134 return 0; 135 136 _err: 137 snd_card_free(card); 138 return err; 139 } 140 141 static int __init alsa_card_cs4231_init(void) 142 { 143 int dev, cards; 144 145 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { 146 if (snd_card_cs4231_probe(dev) >= 0) 147 cards++; 148 } 149 if (!cards) { 150 #ifdef MODULE 151 printk(KERN_ERR "CS4231 soundcard not found or device busy\n"); 152 #endif 153 return -ENODEV; 154 } 155 return 0; 156 } 157 158 static void __exit alsa_card_cs4231_exit(void) 159 { 160 int idx; 161 162 for (idx = 0; idx < SNDRV_CARDS; idx++) 163 snd_card_free(snd_cs4231_cards[idx]); 164 } 165 166 module_init(alsa_card_cs4231_init) 167 module_exit(alsa_card_cs4231_exit) 168