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/ioport.h> 26 #include <linux/module.h> 27 #include <sound/core.h> 28 #include <sound/sb.h> 29 #include <sound/opl3.h> 30 #include <sound/initval.h> 31 32 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 33 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); 34 MODULE_LICENSE("GPL"); 35 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); 36 37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 40 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ 41 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ 42 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ 43 44 module_param_array(index, int, NULL, 0444); 45 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); 46 module_param_array(id, charp, NULL, 0444); 47 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); 48 module_param_array(enable, bool, NULL, 0444); 49 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); 50 module_param_array(port, long, NULL, 0444); 51 MODULE_PARM_DESC(port, "Port # for SB8 driver."); 52 module_param_array(irq, int, NULL, 0444); 53 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); 54 module_param_array(dma8, int, NULL, 0444); 55 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); 56 57 struct snd_sb8 { 58 struct resource *fm_res; /* used to block FM i/o region for legacy cards */ 59 struct snd_sb *chip; 60 }; 61 62 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id) 63 { 64 struct snd_sb *chip = dev_id; 65 66 if (chip->open & SB_OPEN_PCM) { 67 return snd_sb8dsp_interrupt(chip); 68 } else { 69 return snd_sb8dsp_midi_interrupt(chip); 70 } 71 } 72 73 static void snd_sb8_free(struct snd_card *card) 74 { 75 struct snd_sb8 *acard = card->private_data; 76 77 if (acard == NULL) 78 return; 79 release_and_free_resource(acard->fm_res); 80 } 81 82 static int snd_sb8_match(struct device *pdev, unsigned int dev) 83 { 84 if (!enable[dev]) 85 return 0; 86 if (irq[dev] == SNDRV_AUTO_IRQ) { 87 dev_err(pdev, "please specify irq\n"); 88 return 0; 89 } 90 if (dma8[dev] == SNDRV_AUTO_DMA) { 91 dev_err(pdev, "please specify dma8\n"); 92 return 0; 93 } 94 return 1; 95 } 96 97 static int snd_sb8_probe(struct device *pdev, unsigned int dev) 98 { 99 struct snd_sb *chip; 100 struct snd_card *card; 101 struct snd_sb8 *acard; 102 struct snd_opl3 *opl3; 103 int err; 104 105 err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE, 106 sizeof(struct snd_sb8), &card); 107 if (err < 0) 108 return err; 109 acard = card->private_data; 110 card->private_free = snd_sb8_free; 111 112 /* block the 0x388 port to avoid PnP conflicts */ 113 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); 114 115 if (port[dev] != SNDRV_AUTO_PORT) { 116 if ((err = snd_sbdsp_create(card, port[dev], irq[dev], 117 snd_sb8_interrupt, 118 dma8[dev], 119 -1, 120 SB_HW_AUTO, 121 &chip)) < 0) 122 goto _err; 123 } else { 124 /* auto-probe legacy ports */ 125 static unsigned long possible_ports[] = { 126 0x220, 0x240, 0x260, 127 }; 128 int i; 129 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 130 err = snd_sbdsp_create(card, possible_ports[i], 131 irq[dev], 132 snd_sb8_interrupt, 133 dma8[dev], 134 -1, 135 SB_HW_AUTO, 136 &chip); 137 if (err >= 0) { 138 port[dev] = possible_ports[i]; 139 break; 140 } 141 } 142 if (i >= ARRAY_SIZE(possible_ports)) { 143 err = -EINVAL; 144 goto _err; 145 } 146 } 147 acard->chip = chip; 148 149 if (chip->hardware >= SB_HW_16) { 150 if (chip->hardware == SB_HW_ALS100) 151 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", 152 port[dev]); 153 else 154 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", 155 port[dev]); 156 err = -ENODEV; 157 goto _err; 158 } 159 160 if ((err = snd_sb8dsp_pcm(chip, 0)) < 0) 161 goto _err; 162 163 if ((err = snd_sbmixer_new(chip)) < 0) 164 goto _err; 165 166 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { 167 if ((err = snd_opl3_create(card, chip->port + 8, 0, 168 OPL3_HW_AUTO, 1, 169 &opl3)) < 0) { 170 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); 171 } 172 } else { 173 if ((err = snd_opl3_create(card, chip->port, chip->port + 2, 174 OPL3_HW_AUTO, 1, 175 &opl3)) < 0) { 176 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", 177 chip->port, chip->port + 2); 178 } 179 } 180 if (err >= 0) { 181 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) 182 goto _err; 183 } 184 185 if ((err = snd_sb8dsp_midi(chip, 0)) < 0) 186 goto _err; 187 188 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); 189 strcpy(card->shortname, chip->name); 190 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 191 chip->name, 192 chip->port, 193 irq[dev], dma8[dev]); 194 195 if ((err = snd_card_register(card)) < 0) 196 goto _err; 197 198 dev_set_drvdata(pdev, card); 199 return 0; 200 201 _err: 202 snd_card_free(card); 203 return err; 204 } 205 206 static int snd_sb8_remove(struct device *pdev, unsigned int dev) 207 { 208 snd_card_free(dev_get_drvdata(pdev)); 209 return 0; 210 } 211 212 #ifdef CONFIG_PM 213 static int snd_sb8_suspend(struct device *dev, unsigned int n, 214 pm_message_t state) 215 { 216 struct snd_card *card = dev_get_drvdata(dev); 217 struct snd_sb8 *acard = card->private_data; 218 struct snd_sb *chip = acard->chip; 219 220 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 221 snd_pcm_suspend_all(chip->pcm); 222 snd_sbmixer_suspend(chip); 223 return 0; 224 } 225 226 static int snd_sb8_resume(struct device *dev, unsigned int n) 227 { 228 struct snd_card *card = dev_get_drvdata(dev); 229 struct snd_sb8 *acard = card->private_data; 230 struct snd_sb *chip = acard->chip; 231 232 snd_sbdsp_reset(chip); 233 snd_sbmixer_resume(chip); 234 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 235 return 0; 236 } 237 #endif 238 239 #define DEV_NAME "sb8" 240 241 static struct isa_driver snd_sb8_driver = { 242 .match = snd_sb8_match, 243 .probe = snd_sb8_probe, 244 .remove = snd_sb8_remove, 245 #ifdef CONFIG_PM 246 .suspend = snd_sb8_suspend, 247 .resume = snd_sb8_resume, 248 #endif 249 .driver = { 250 .name = DEV_NAME 251 }, 252 }; 253 254 static int __init alsa_card_sb8_init(void) 255 { 256 return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS); 257 } 258 259 static void __exit alsa_card_sb8_exit(void) 260 { 261 isa_unregister_driver(&snd_sb8_driver); 262 } 263 264 module_init(alsa_card_sb8_init) 265 module_exit(alsa_card_sb8_exit) 266