1 /* 2 * Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha) 3 * Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>, 4 * Jaroslav Kysela <perex@suse.cz> 5 * Based on card-4232.c by Jaroslav Kysela <perex@suse.cz> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #include <sound/driver.h> 25 #include <linux/init.h> 26 #include <linux/time.h> 27 #include <linux/wait.h> 28 #include <linux/moduleparam.h> 29 #include <sound/core.h> 30 #include <sound/ad1848.h> 31 #include <sound/initval.h> 32 33 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>"); 34 MODULE_DESCRIPTION("AD1848/AD1847/CS4248"); 35 MODULE_LICENSE("GPL"); 36 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848}," 37 "{Analog Devices,AD1847}," 38 "{Crystal Semiconductors,CS4248}}"); 39 40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 43 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 44 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 46 static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */ 47 48 module_param_array(index, int, NULL, 0444); 49 MODULE_PARM_DESC(index, "Index value for AD1848 soundcard."); 50 module_param_array(id, charp, NULL, 0444); 51 MODULE_PARM_DESC(id, "ID string for AD1848 soundcard."); 52 module_param_array(enable, bool, NULL, 0444); 53 MODULE_PARM_DESC(enable, "Enable AD1848 soundcard."); 54 module_param_array(port, long, NULL, 0444); 55 MODULE_PARM_DESC(port, "Port # for AD1848 driver."); 56 module_param_array(irq, int, NULL, 0444); 57 MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver."); 58 module_param_array(dma1, int, NULL, 0444); 59 MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver."); 60 module_param_array(thinkpad, bool, NULL, 0444); 61 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series."); 62 63 static snd_card_t *snd_ad1848_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; 64 65 66 static int __init snd_card_ad1848_probe(int dev) 67 { 68 snd_card_t *card; 69 ad1848_t *chip; 70 snd_pcm_t *pcm; 71 int err; 72 73 if (port[dev] == SNDRV_AUTO_PORT) { 74 snd_printk(KERN_ERR "ad1848: specify port\n"); 75 return -EINVAL; 76 } 77 if (irq[dev] == SNDRV_AUTO_IRQ) { 78 snd_printk(KERN_ERR "ad1848: specify irq\n"); 79 return -EINVAL; 80 } 81 if (dma1[dev] == SNDRV_AUTO_DMA) { 82 snd_printk(KERN_ERR "ad1848: specify dma1\n"); 83 return -EINVAL; 84 } 85 86 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 87 if (card == NULL) 88 return -ENOMEM; 89 90 if ((err = snd_ad1848_create(card, port[dev], 91 irq[dev], 92 dma1[dev], 93 thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT, 94 &chip)) < 0) 95 goto _err; 96 97 if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0) 98 goto _err; 99 100 if ((err = snd_ad1848_mixer(chip)) < 0) 101 goto _err; 102 103 strcpy(card->driver, "AD1848"); 104 strcpy(card->shortname, pcm->name); 105 106 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 107 pcm->name, chip->port, irq[dev], dma1[dev]); 108 109 if (thinkpad[dev]) 110 strcat(card->longname, " [Thinkpad]"); 111 112 if ((err = snd_card_set_generic_dev(card)) < 0) 113 goto _err; 114 115 if ((err = snd_card_register(card)) < 0) 116 goto _err; 117 118 snd_ad1848_cards[dev] = card; 119 return 0; 120 121 _err: 122 snd_card_free(card); 123 return err; 124 } 125 126 static int __init alsa_card_ad1848_init(void) 127 { 128 int dev, cards; 129 130 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) 131 if (snd_card_ad1848_probe(dev) >= 0) 132 cards++; 133 134 if (!cards) { 135 #ifdef MODULE 136 printk(KERN_ERR "AD1848 soundcard not found or device busy\n"); 137 #endif 138 return -ENODEV; 139 } 140 return 0; 141 } 142 143 static void __exit alsa_card_ad1848_exit(void) 144 { 145 int idx; 146 147 for (idx = 0; idx < SNDRV_CARDS; idx++) 148 snd_card_free(snd_ad1848_cards[idx]); 149 } 150 151 module_init(alsa_card_ad1848_init) 152 module_exit(alsa_card_ad1848_exit) 153