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@perex.cz> 5 * Based on card-4232.c by Jaroslav Kysela <perex@perex.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 <linux/init.h> 25 #include <linux/err.h> 26 #include <linux/isa.h> 27 #include <linux/time.h> 28 #include <linux/wait.h> 29 #include <linux/module.h> 30 #include <sound/core.h> 31 #include <sound/wss.h> 32 #include <sound/initval.h> 33 34 #define CRD_NAME "Generic AD1848/AD1847/CS4248" 35 #define DEV_NAME "ad1848" 36 37 MODULE_DESCRIPTION(CRD_NAME); 38 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>"); 39 MODULE_LICENSE("GPL"); 40 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848}," 41 "{Analog Devices,AD1847}," 42 "{Crystal Semiconductors,CS4248}}"); 43 44 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 46 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 47 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 48 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 50 static bool thinkpad[SNDRV_CARDS]; /* Thinkpad special case */ 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(irq, int, NULL, 0444); 61 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 62 module_param_array(dma1, int, NULL, 0444); 63 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 64 module_param_array(thinkpad, bool, NULL, 0444); 65 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series."); 66 67 static int snd_ad1848_match(struct device *dev, unsigned int n) 68 { 69 if (!enable[n]) 70 return 0; 71 72 if (port[n] == SNDRV_AUTO_PORT) { 73 dev_err(dev, "please specify port\n"); 74 return 0; 75 } 76 if (irq[n] == SNDRV_AUTO_IRQ) { 77 dev_err(dev, "please specify irq\n"); 78 return 0; 79 } 80 if (dma1[n] == SNDRV_AUTO_DMA) { 81 dev_err(dev, "please specify dma1\n"); 82 return 0; 83 } 84 return 1; 85 } 86 87 static int snd_ad1848_probe(struct device *dev, unsigned int n) 88 { 89 struct snd_card *card; 90 struct snd_wss *chip; 91 struct snd_pcm *pcm; 92 int error; 93 94 error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card); 95 if (error < 0) 96 return error; 97 98 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1, 99 thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT, 100 0, &chip); 101 if (error < 0) 102 goto out; 103 104 card->private_data = chip; 105 106 error = snd_wss_pcm(chip, 0, &pcm); 107 if (error < 0) 108 goto out; 109 110 error = snd_wss_mixer(chip); 111 if (error < 0) 112 goto out; 113 114 strcpy(card->driver, "AD1848"); 115 strcpy(card->shortname, pcm->name); 116 117 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 118 pcm->name, chip->port, irq[n], dma1[n]); 119 if (thinkpad[n]) 120 strcat(card->longname, " [Thinkpad]"); 121 122 snd_card_set_dev(card, dev); 123 124 error = snd_card_register(card); 125 if (error < 0) 126 goto out; 127 128 dev_set_drvdata(dev, card); 129 return 0; 130 131 out: snd_card_free(card); 132 return error; 133 } 134 135 static int snd_ad1848_remove(struct device *dev, unsigned int n) 136 { 137 snd_card_free(dev_get_drvdata(dev)); 138 return 0; 139 } 140 141 #ifdef CONFIG_PM 142 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state) 143 { 144 struct snd_card *card = dev_get_drvdata(dev); 145 struct snd_wss *chip = card->private_data; 146 147 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 148 chip->suspend(chip); 149 return 0; 150 } 151 152 static int snd_ad1848_resume(struct device *dev, unsigned int n) 153 { 154 struct snd_card *card = dev_get_drvdata(dev); 155 struct snd_wss *chip = card->private_data; 156 157 chip->resume(chip); 158 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 159 return 0; 160 } 161 #endif 162 163 static struct isa_driver snd_ad1848_driver = { 164 .match = snd_ad1848_match, 165 .probe = snd_ad1848_probe, 166 .remove = snd_ad1848_remove, 167 #ifdef CONFIG_PM 168 .suspend = snd_ad1848_suspend, 169 .resume = snd_ad1848_resume, 170 #endif 171 .driver = { 172 .name = DEV_NAME 173 } 174 }; 175 176 static int __init alsa_card_ad1848_init(void) 177 { 178 return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS); 179 } 180 181 static void __exit alsa_card_ad1848_exit(void) 182 { 183 isa_unregister_driver(&snd_ad1848_driver); 184 } 185 186 module_init(alsa_card_ad1848_init); 187 module_exit(alsa_card_ad1848_exit); 188