1 /* 2 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible 3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 4 * 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 #include <linux/init.h> 23 #include <linux/err.h> 24 #include <linux/isa.h> 25 #include <linux/slab.h> 26 #include <linux/ioport.h> 27 #include <linux/moduleparam.h> 28 #include <sound/core.h> 29 #include <sound/sb.h> 30 #include <sound/opl3.h> 31 #include <sound/initval.h> 32 33 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 34 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); 35 MODULE_LICENSE("GPL"); 36 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); 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; /* 0x220,0x240,0x260 */ 42 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ 43 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ 44 45 module_param_array(index, int, NULL, 0444); 46 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); 47 module_param_array(id, charp, NULL, 0444); 48 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); 49 module_param_array(enable, bool, NULL, 0444); 50 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); 51 module_param_array(port, long, NULL, 0444); 52 MODULE_PARM_DESC(port, "Port # for SB8 driver."); 53 module_param_array(irq, int, NULL, 0444); 54 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); 55 module_param_array(dma8, int, NULL, 0444); 56 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); 57 58 struct snd_sb8 { 59 struct resource *fm_res; /* used to block FM i/o region for legacy cards */ 60 struct snd_sb *chip; 61 }; 62 63 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id) 64 { 65 struct snd_sb *chip = dev_id; 66 67 if (chip->open & SB_OPEN_PCM) { 68 return snd_sb8dsp_interrupt(chip); 69 } else { 70 return snd_sb8dsp_midi_interrupt(chip); 71 } 72 } 73 74 static void snd_sb8_free(struct snd_card *card) 75 { 76 struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data; 77 78 if (acard == NULL) 79 return; 80 release_and_free_resource(acard->fm_res); 81 } 82 83 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev) 84 { 85 if (!enable[dev]) 86 return 0; 87 if (irq[dev] == SNDRV_AUTO_IRQ) { 88 dev_err(pdev, "please specify irq\n"); 89 return 0; 90 } 91 if (dma8[dev] == SNDRV_AUTO_DMA) { 92 dev_err(pdev, "please specify dma8\n"); 93 return 0; 94 } 95 return 1; 96 } 97 98 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev) 99 { 100 struct snd_sb *chip; 101 struct snd_card *card; 102 struct snd_sb8 *acard; 103 struct snd_opl3 *opl3; 104 int err; 105 106 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 107 sizeof(struct snd_sb8), &card); 108 if (err < 0) 109 return err; 110 acard = card->private_data; 111 card->private_free = snd_sb8_free; 112 113 /* block the 0x388 port to avoid PnP conflicts */ 114 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); 115 116 if (port[dev] != SNDRV_AUTO_PORT) { 117 if ((err = snd_sbdsp_create(card, port[dev], irq[dev], 118 snd_sb8_interrupt, 119 dma8[dev], 120 -1, 121 SB_HW_AUTO, 122 &chip)) < 0) 123 goto _err; 124 } else { 125 /* auto-probe legacy ports */ 126 static unsigned long possible_ports[] = { 127 0x220, 0x240, 0x260, 128 }; 129 int i; 130 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 131 err = snd_sbdsp_create(card, possible_ports[i], 132 irq[dev], 133 snd_sb8_interrupt, 134 dma8[dev], 135 -1, 136 SB_HW_AUTO, 137 &chip); 138 if (err >= 0) { 139 port[dev] = possible_ports[i]; 140 break; 141 } 142 } 143 if (i >= ARRAY_SIZE(possible_ports)) { 144 err = -EINVAL; 145 goto _err; 146 } 147 } 148 acard->chip = chip; 149 150 if (chip->hardware >= SB_HW_16) { 151 if (chip->hardware == SB_HW_ALS100) 152 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", 153 port[dev]); 154 else 155 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", 156 port[dev]); 157 err = -ENODEV; 158 goto _err; 159 } 160 161 if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) 162 goto _err; 163 164 if ((err = snd_sbmixer_new(chip)) < 0) 165 goto _err; 166 167 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { 168 if ((err = snd_opl3_create(card, chip->port + 8, 0, 169 OPL3_HW_AUTO, 1, 170 &opl3)) < 0) { 171 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); 172 } 173 } else { 174 if ((err = snd_opl3_create(card, chip->port, chip->port + 2, 175 OPL3_HW_AUTO, 1, 176 &opl3)) < 0) { 177 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", 178 chip->port, chip->port + 2); 179 } 180 } 181 if (err >= 0) { 182 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) 183 goto _err; 184 } 185 186 if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) 187 goto _err; 188 189 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); 190 strcpy(card->shortname, chip->name); 191 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 192 chip->name, 193 chip->port, 194 irq[dev], dma8[dev]); 195 196 snd_card_set_dev(card, pdev); 197 198 if ((err = snd_card_register(card)) < 0) 199 goto _err; 200 201 dev_set_drvdata(pdev, card); 202 return 0; 203 204 _err: 205 snd_card_free(card); 206 return err; 207 } 208 209 static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev) 210 { 211 snd_card_free(dev_get_drvdata(pdev)); 212 dev_set_drvdata(pdev, NULL); 213 return 0; 214 } 215 216 #ifdef CONFIG_PM 217 static int snd_sb8_suspend(struct device *dev, unsigned int n, 218 pm_message_t state) 219 { 220 struct snd_card *card = dev_get_drvdata(dev); 221 struct snd_sb8 *acard = card->private_data; 222 struct snd_sb *chip = acard->chip; 223 224 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 225 snd_pcm_suspend_all(chip->pcm); 226 snd_sbmixer_suspend(chip); 227 return 0; 228 } 229 230 static int snd_sb8_resume(struct device *dev, unsigned int n) 231 { 232 struct snd_card *card = dev_get_drvdata(dev); 233 struct snd_sb8 *acard = card->private_data; 234 struct snd_sb *chip = acard->chip; 235 236 snd_sbdsp_reset(chip); 237 snd_sbmixer_resume(chip); 238 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 239 return 0; 240 } 241 #endif 242 243 #define DEV_NAME "sb8" 244 245 static struct isa_driver snd_sb8_driver = { 246 .match = snd_sb8_match, 247 .probe = snd_sb8_probe, 248 .remove = __devexit_p(snd_sb8_remove), 249 #ifdef CONFIG_PM 250 .suspend = snd_sb8_suspend, 251 .resume = snd_sb8_resume, 252 #endif 253 .driver = { 254 .name = DEV_NAME 255 }, 256 }; 257 258 static int __init alsa_card_sb8_init(void) 259 { 260 return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS); 261 } 262 263 static void __exit alsa_card_sb8_exit(void) 264 { 265 isa_unregister_driver(&snd_sb8_driver); 266 } 267 268 module_init(alsa_card_sb8_init) 269 module_exit(alsa_card_sb8_exit) 270