1 /* 2 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible 3 * Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h> 23 #include <linux/init.h> 24 #include <linux/err.h> 25 #include <linux/platform_device.h> 26 #include <linux/slab.h> 27 #include <linux/ioport.h> 28 #include <linux/moduleparam.h> 29 #include <sound/core.h> 30 #include <sound/sb.h> 31 #include <sound/opl3.h> 32 #include <sound/initval.h> 33 34 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 35 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); 36 MODULE_LICENSE("GPL"); 37 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); 38 39 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 40 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 41 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ 43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ 44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ 45 46 module_param_array(index, int, NULL, 0444); 47 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); 48 module_param_array(id, charp, NULL, 0444); 49 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); 50 module_param_array(enable, bool, NULL, 0444); 51 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); 52 module_param_array(port, long, NULL, 0444); 53 MODULE_PARM_DESC(port, "Port # for SB8 driver."); 54 module_param_array(irq, int, NULL, 0444); 55 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); 56 module_param_array(dma8, int, NULL, 0444); 57 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); 58 59 static struct platform_device *devices[SNDRV_CARDS]; 60 61 struct snd_sb8 { 62 struct resource *fm_res; /* used to block FM i/o region for legacy cards */ 63 struct snd_sb *chip; 64 }; 65 66 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs) 67 { 68 struct snd_sb *chip = dev_id; 69 70 if (chip->open & SB_OPEN_PCM) { 71 return snd_sb8dsp_interrupt(chip); 72 } else { 73 return snd_sb8dsp_midi_interrupt(chip); 74 } 75 } 76 77 static void snd_sb8_free(struct snd_card *card) 78 { 79 struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data; 80 81 if (acard == NULL) 82 return; 83 release_and_free_resource(acard->fm_res); 84 } 85 86 static int __init snd_sb8_probe(struct platform_device *pdev) 87 { 88 int dev = pdev->id; 89 struct snd_sb *chip; 90 struct snd_card *card; 91 struct snd_sb8 *acard; 92 struct snd_opl3 *opl3; 93 int err; 94 95 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 96 sizeof(struct snd_sb8)); 97 if (card == NULL) 98 return -ENOMEM; 99 acard = card->private_data; 100 card->private_free = snd_sb8_free; 101 102 /* block the 0x388 port to avoid PnP conflicts */ 103 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); 104 105 if (port[dev] != SNDRV_AUTO_PORT) { 106 if ((err = snd_sbdsp_create(card, port[dev], irq[dev], 107 snd_sb8_interrupt, 108 dma8[dev], 109 -1, 110 SB_HW_AUTO, 111 &chip)) < 0) 112 goto _err; 113 } else { 114 /* auto-probe legacy ports */ 115 static unsigned long possible_ports[] = { 116 0x220, 0x240, 0x260, 117 }; 118 int i; 119 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 120 err = snd_sbdsp_create(card, possible_ports[i], 121 irq[dev], 122 snd_sb8_interrupt, 123 dma8[dev], 124 -1, 125 SB_HW_AUTO, 126 &chip); 127 if (err >= 0) { 128 port[dev] = possible_ports[i]; 129 break; 130 } 131 } 132 if (i >= ARRAY_SIZE(possible_ports)) 133 goto _err; 134 } 135 acard->chip = chip; 136 137 if (chip->hardware >= SB_HW_16) { 138 if (chip->hardware == SB_HW_ALS100) 139 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", 140 port[dev]); 141 else 142 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", 143 port[dev]); 144 err = -ENODEV; 145 goto _err; 146 } 147 148 if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) 149 goto _err; 150 151 if ((err = snd_sbmixer_new(chip)) < 0) 152 goto _err; 153 154 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { 155 if ((err = snd_opl3_create(card, chip->port + 8, 0, 156 OPL3_HW_AUTO, 1, 157 &opl3)) < 0) { 158 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); 159 } 160 } else { 161 if ((err = snd_opl3_create(card, chip->port, chip->port + 2, 162 OPL3_HW_AUTO, 1, 163 &opl3)) < 0) { 164 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", 165 chip->port, chip->port + 2); 166 } 167 } 168 if (err >= 0) { 169 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) 170 goto _err; 171 } 172 173 if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) 174 goto _err; 175 176 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); 177 strcpy(card->shortname, chip->name); 178 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 179 chip->name, 180 chip->port, 181 irq[dev], dma8[dev]); 182 183 snd_card_set_dev(card, &pdev->dev); 184 185 if ((err = snd_card_register(card)) < 0) 186 goto _err; 187 188 platform_set_drvdata(pdev, card); 189 return 0; 190 191 _err: 192 snd_card_free(card); 193 return err; 194 } 195 196 static int snd_sb8_remove(struct platform_device *pdev) 197 { 198 snd_card_free(platform_get_drvdata(pdev)); 199 platform_set_drvdata(pdev, NULL); 200 return 0; 201 } 202 203 #ifdef CONFIG_PM 204 static int snd_sb8_suspend(struct platform_device *dev, pm_message_t state) 205 { 206 struct snd_card *card = platform_get_drvdata(dev); 207 struct snd_sb8 *acard = card->private_data; 208 struct snd_sb *chip = acard->chip; 209 210 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 211 snd_pcm_suspend_all(chip->pcm); 212 snd_sbmixer_suspend(chip); 213 return 0; 214 } 215 216 static int snd_sb8_resume(struct platform_device *dev) 217 { 218 struct snd_card *card = platform_get_drvdata(dev); 219 struct snd_sb8 *acard = card->private_data; 220 struct snd_sb *chip = acard->chip; 221 222 snd_sbdsp_reset(chip); 223 snd_sbmixer_resume(chip); 224 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 225 return 0; 226 } 227 #endif 228 229 #define SND_SB8_DRIVER "snd_sb8" 230 231 static struct platform_driver snd_sb8_driver = { 232 .probe = snd_sb8_probe, 233 .remove = snd_sb8_remove, 234 #ifdef CONFIG_PM 235 .suspend = snd_sb8_suspend, 236 .resume = snd_sb8_resume, 237 #endif 238 .driver = { 239 .name = SND_SB8_DRIVER 240 }, 241 }; 242 243 static void __init_or_module snd_sb8_unregister_all(void) 244 { 245 int i; 246 247 for (i = 0; i < ARRAY_SIZE(devices); ++i) 248 platform_device_unregister(devices[i]); 249 platform_driver_unregister(&snd_sb8_driver); 250 } 251 252 static int __init alsa_card_sb8_init(void) 253 { 254 int i, cards, err; 255 256 err = platform_driver_register(&snd_sb8_driver); 257 if (err < 0) 258 return err; 259 260 cards = 0; 261 for (i = 0; i < SNDRV_CARDS && enable[i]; i++) { 262 struct platform_device *device; 263 device = platform_device_register_simple(SND_SB8_DRIVER, 264 i, NULL, 0); 265 if (IS_ERR(device)) { 266 err = PTR_ERR(device); 267 goto errout; 268 } 269 devices[i] = device; 270 cards++; 271 } 272 if (!cards) { 273 #ifdef MODULE 274 snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n"); 275 #endif 276 err = -ENODEV; 277 goto errout; 278 } 279 return 0; 280 281 errout: 282 snd_sb8_unregister_all(); 283 return err; 284 } 285 286 static void __exit alsa_card_sb8_exit(void) 287 { 288 snd_sb8_unregister_all(); 289 } 290 291 module_init(alsa_card_sb8_init) 292 module_exit(alsa_card_sb8_exit) 293