1 /* 2 * Driver for Gravis UltraSound Classic soundcard 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/delay.h> 26 #include <linux/time.h> 27 #include <linux/module.h> 28 #include <asm/dma.h> 29 #include <sound/core.h> 30 #include <sound/gus.h> 31 #define SNDRV_LEGACY_FIND_FREE_IRQ 32 #define SNDRV_LEGACY_FIND_FREE_DMA 33 #include <sound/initval.h> 34 35 #define CRD_NAME "Gravis UltraSound Classic" 36 #define DEV_NAME "gusclassic" 37 38 MODULE_DESCRIPTION(CRD_NAME); 39 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 40 MODULE_LICENSE("GPL"); 41 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); 42 43 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 45 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 46 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ 48 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 49 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 50 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 51 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 52 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 53 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 54 55 module_param_array(index, int, NULL, 0444); 56 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); 57 module_param_array(id, charp, NULL, 0444); 58 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); 59 module_param_array(enable, bool, NULL, 0444); 60 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); 61 module_param_array(port, long, NULL, 0444); 62 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); 63 module_param_array(irq, int, NULL, 0444); 64 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 65 module_param_array(dma1, int, NULL, 0444); 66 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 67 module_param_array(dma2, int, NULL, 0444); 68 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); 69 module_param_array(joystick_dac, int, NULL, 0444); 70 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver."); 71 module_param_array(channels, int, NULL, 0444); 72 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver."); 73 module_param_array(pcm_channels, int, NULL, 0444); 74 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver."); 75 76 static int __devinit snd_gusclassic_match(struct device *dev, unsigned int n) 77 { 78 return enable[n]; 79 } 80 81 static int __devinit snd_gusclassic_create(struct snd_card *card, 82 struct device *dev, unsigned int n, struct snd_gus_card **rgus) 83 { 84 static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; 85 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; 86 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 87 88 int i, error; 89 90 if (irq[n] == SNDRV_AUTO_IRQ) { 91 irq[n] = snd_legacy_find_free_irq(possible_irqs); 92 if (irq[n] < 0) { 93 dev_err(dev, "unable to find a free IRQ\n"); 94 return -EBUSY; 95 } 96 } 97 if (dma1[n] == SNDRV_AUTO_DMA) { 98 dma1[n] = snd_legacy_find_free_dma(possible_dmas); 99 if (dma1[n] < 0) { 100 dev_err(dev, "unable to find a free DMA1\n"); 101 return -EBUSY; 102 } 103 } 104 if (dma2[n] == SNDRV_AUTO_DMA) { 105 dma2[n] = snd_legacy_find_free_dma(possible_dmas); 106 if (dma2[n] < 0) { 107 dev_err(dev, "unable to find a free DMA2\n"); 108 return -EBUSY; 109 } 110 } 111 112 if (port[n] != SNDRV_AUTO_PORT) 113 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 114 0, channels[n], pcm_channels[n], 0, rgus); 115 116 i = 0; 117 do { 118 port[n] = possible_ports[i]; 119 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 120 0, channels[n], pcm_channels[n], 0, rgus); 121 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); 122 123 return error; 124 } 125 126 static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus) 127 { 128 unsigned char d; 129 130 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 131 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 132 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 133 return -ENODEV; 134 } 135 udelay(160); 136 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 137 udelay(160); 138 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 139 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 140 return -ENODEV; 141 } 142 return 0; 143 } 144 145 static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n) 146 { 147 struct snd_card *card; 148 struct snd_gus_card *gus; 149 int error; 150 151 error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card); 152 if (error < 0) 153 return error; 154 155 if (pcm_channels[n] < 2) 156 pcm_channels[n] = 2; 157 158 error = snd_gusclassic_create(card, dev, n, &gus); 159 if (error < 0) 160 goto out; 161 162 error = snd_gusclassic_detect(gus); 163 if (error < 0) 164 goto out; 165 166 gus->joystick_dac = joystick_dac[n]; 167 168 error = snd_gus_initialize(gus); 169 if (error < 0) 170 goto out; 171 172 error = -ENODEV; 173 if (gus->max_flag || gus->ess_flag) { 174 dev_err(dev, "GUS Classic or ACE soundcard was " 175 "not detected at 0x%lx\n", gus->gf1.port); 176 goto out; 177 } 178 179 error = snd_gf1_new_mixer(gus); 180 if (error < 0) 181 goto out; 182 183 error = snd_gf1_pcm_new(gus, 0, 0, NULL); 184 if (error < 0) 185 goto out; 186 187 if (!gus->ace_flag) { 188 error = snd_gf1_rawmidi_new(gus, 0, NULL); 189 if (error < 0) 190 goto out; 191 } 192 193 sprintf(card->longname + strlen(card->longname), 194 " at 0x%lx, irq %d, dma %d", 195 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); 196 197 if (gus->gf1.dma2 >= 0) 198 sprintf(card->longname + strlen(card->longname), 199 "&%d", gus->gf1.dma2); 200 201 snd_card_set_dev(card, dev); 202 203 error = snd_card_register(card); 204 if (error < 0) 205 goto out; 206 207 dev_set_drvdata(dev, card); 208 return 0; 209 210 out: snd_card_free(card); 211 return error; 212 } 213 214 static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n) 215 { 216 snd_card_free(dev_get_drvdata(dev)); 217 dev_set_drvdata(dev, NULL); 218 return 0; 219 } 220 221 static struct isa_driver snd_gusclassic_driver = { 222 .match = snd_gusclassic_match, 223 .probe = snd_gusclassic_probe, 224 .remove = __devexit_p(snd_gusclassic_remove), 225 #if 0 /* FIXME */ 226 .suspend = snd_gusclassic_suspend, 227 .remove = snd_gusclassic_remove, 228 #endif 229 .driver = { 230 .name = DEV_NAME 231 } 232 }; 233 234 static int __init alsa_card_gusclassic_init(void) 235 { 236 return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS); 237 } 238 239 static void __exit alsa_card_gusclassic_exit(void) 240 { 241 isa_unregister_driver(&snd_gusclassic_driver); 242 } 243 244 module_init(alsa_card_gusclassic_init); 245 module_exit(alsa_card_gusclassic_exit); 246