1 /* 2 * Driver for Gravis UltraSound Classic soundcard 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/isa.h> 26 #include <linux/delay.h> 27 #include <linux/time.h> 28 #include <linux/moduleparam.h> 29 #include <asm/dma.h> 30 #include <sound/core.h> 31 #include <sound/gus.h> 32 #define SNDRV_LEGACY_FIND_FREE_IRQ 33 #define SNDRV_LEGACY_FIND_FREE_DMA 34 #include <sound/initval.h> 35 36 #define CRD_NAME "Gravis UltraSound Classic" 37 #define DEV_NAME "gusclassic" 38 39 MODULE_DESCRIPTION(CRD_NAME); 40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 41 MODULE_LICENSE("GPL"); 42 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); 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 int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 47 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 48 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ 49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 50 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 51 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 52 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 53 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 54 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 55 56 module_param_array(index, int, NULL, 0444); 57 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); 58 module_param_array(id, charp, NULL, 0444); 59 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); 60 module_param_array(enable, bool, NULL, 0444); 61 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); 62 module_param_array(port, long, NULL, 0444); 63 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); 64 module_param_array(irq, int, NULL, 0444); 65 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 66 module_param_array(dma1, int, NULL, 0444); 67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 68 module_param_array(dma2, int, NULL, 0444); 69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); 70 module_param_array(joystick_dac, int, NULL, 0444); 71 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver."); 72 module_param_array(channels, int, NULL, 0444); 73 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver."); 74 module_param_array(pcm_channels, int, NULL, 0444); 75 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver."); 76 77 static int __devinit snd_gusclassic_match(struct device *dev, unsigned int n) 78 { 79 return enable[n]; 80 } 81 82 static int __devinit snd_gusclassic_create(struct snd_card *card, 83 struct device *dev, unsigned int n, struct snd_gus_card **rgus) 84 { 85 static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; 86 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; 87 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 88 89 int i, error; 90 91 if (irq[n] == SNDRV_AUTO_IRQ) { 92 irq[n] = snd_legacy_find_free_irq(possible_irqs); 93 if (irq[n] < 0) { 94 snd_printk(KERN_ERR "%s: unable to find a free IRQ\n", 95 dev->bus_id); 96 return -EBUSY; 97 } 98 } 99 if (dma1[n] == SNDRV_AUTO_DMA) { 100 dma1[n] = snd_legacy_find_free_dma(possible_dmas); 101 if (dma1[n] < 0) { 102 snd_printk(KERN_ERR "%s: unable to find a free DMA1\n", 103 dev->bus_id); 104 return -EBUSY; 105 } 106 } 107 if (dma2[n] == SNDRV_AUTO_DMA) { 108 dma2[n] = snd_legacy_find_free_dma(possible_dmas); 109 if (dma2[n] < 0) { 110 snd_printk(KERN_ERR "%s: unable to find a free DMA2\n", 111 dev->bus_id); 112 return -EBUSY; 113 } 114 } 115 116 if (port[n] != SNDRV_AUTO_PORT) 117 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 118 0, channels[n], pcm_channels[n], 0, rgus); 119 120 i = 0; 121 do { 122 port[n] = possible_ports[i]; 123 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 124 0, channels[n], pcm_channels[n], 0, rgus); 125 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); 126 127 return error; 128 } 129 130 static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus) 131 { 132 unsigned char d; 133 134 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 135 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 136 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 137 return -ENODEV; 138 } 139 udelay(160); 140 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 141 udelay(160); 142 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 143 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 144 return -ENODEV; 145 } 146 return 0; 147 } 148 149 static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n) 150 { 151 struct snd_card *card; 152 struct snd_gus_card *gus; 153 int error; 154 155 card = snd_card_new(index[n], id[n], THIS_MODULE, 0); 156 if (!card) 157 return -EINVAL; 158 159 if (pcm_channels[n] < 2) 160 pcm_channels[n] = 2; 161 162 error = snd_gusclassic_create(card, dev, n, &gus); 163 if (error < 0) 164 goto out; 165 166 error = snd_gusclassic_detect(gus); 167 if (error < 0) 168 goto out; 169 170 gus->joystick_dac = joystick_dac[n]; 171 172 error = snd_gus_initialize(gus); 173 if (error < 0) 174 goto out; 175 176 error = -ENODEV; 177 if (gus->max_flag || gus->ess_flag) { 178 snd_printk(KERN_ERR "%s: GUS Classic or ACE soundcard was " 179 "not detected at 0x%lx\n", dev->bus_id, gus->gf1.port); 180 goto out; 181 } 182 183 error = snd_gf1_new_mixer(gus); 184 if (error < 0) 185 goto out; 186 187 error = snd_gf1_pcm_new(gus, 0, 0, NULL); 188 if (error < 0) 189 goto out; 190 191 if (!gus->ace_flag) { 192 error = snd_gf1_rawmidi_new(gus, 0, NULL); 193 if (error < 0) 194 goto out; 195 } 196 197 sprintf(card->longname + strlen(card->longname), 198 " at 0x%lx, irq %d, dma %d", 199 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); 200 201 if (gus->gf1.dma2 >= 0) 202 sprintf(card->longname + strlen(card->longname), 203 "&%d", gus->gf1.dma2); 204 205 snd_card_set_dev(card, dev); 206 207 error = snd_card_register(card); 208 if (error < 0) 209 goto out; 210 211 dev_set_drvdata(dev, card); 212 return 0; 213 214 out: snd_card_free(card); 215 return error; 216 } 217 218 static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n) 219 { 220 snd_card_free(dev_get_drvdata(dev)); 221 dev_set_drvdata(dev, NULL); 222 return 0; 223 } 224 225 static struct isa_driver snd_gusclassic_driver = { 226 .match = snd_gusclassic_match, 227 .probe = snd_gusclassic_probe, 228 .remove = __devexit_p(snd_gusclassic_remove), 229 #if 0 /* FIXME */ 230 .suspend = snd_gusclassic_suspend, 231 .remove = snd_gusclassic_remove, 232 #endif 233 .driver = { 234 .name = DEV_NAME 235 } 236 }; 237 238 static int __init alsa_card_gusclassic_init(void) 239 { 240 return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS); 241 } 242 243 static void __exit alsa_card_gusclassic_exit(void) 244 { 245 isa_unregister_driver(&snd_gusclassic_driver); 246 } 247 248 module_init(alsa_card_gusclassic_init); 249 module_exit(alsa_card_gusclassic_exit); 250