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 snd_gusclassic_match(struct device *dev, unsigned int n) 77 { 78 return enable[n]; 79 } 80 81 static int snd_gusclassic_create(struct snd_card *card, 82 struct device *dev, unsigned int n, 83 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 dev_err(dev, "unable to find a free IRQ\n"); 95 return -EBUSY; 96 } 97 } 98 if (dma1[n] == SNDRV_AUTO_DMA) { 99 dma1[n] = snd_legacy_find_free_dma(possible_dmas); 100 if (dma1[n] < 0) { 101 dev_err(dev, "unable to find a free DMA1\n"); 102 return -EBUSY; 103 } 104 } 105 if (dma2[n] == SNDRV_AUTO_DMA) { 106 dma2[n] = snd_legacy_find_free_dma(possible_dmas); 107 if (dma2[n] < 0) { 108 dev_err(dev, "unable to find a free DMA2\n"); 109 return -EBUSY; 110 } 111 } 112 113 if (port[n] != SNDRV_AUTO_PORT) 114 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 115 0, channels[n], pcm_channels[n], 0, rgus); 116 117 i = 0; 118 do { 119 port[n] = possible_ports[i]; 120 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 121 0, channels[n], pcm_channels[n], 0, rgus); 122 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); 123 124 return error; 125 } 126 127 static int snd_gusclassic_detect(struct snd_gus_card *gus) 128 { 129 unsigned char d; 130 131 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 132 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 133 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 134 return -ENODEV; 135 } 136 udelay(160); 137 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 138 udelay(160); 139 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 140 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 141 return -ENODEV; 142 } 143 return 0; 144 } 145 146 static int snd_gusclassic_probe(struct device *dev, unsigned int n) 147 { 148 struct snd_card *card; 149 struct snd_gus_card *gus; 150 int error; 151 152 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); 153 if (error < 0) 154 return error; 155 156 if (pcm_channels[n] < 2) 157 pcm_channels[n] = 2; 158 159 error = snd_gusclassic_create(card, dev, n, &gus); 160 if (error < 0) 161 goto out; 162 163 error = snd_gusclassic_detect(gus); 164 if (error < 0) 165 goto out; 166 167 gus->joystick_dac = joystick_dac[n]; 168 169 error = snd_gus_initialize(gus); 170 if (error < 0) 171 goto out; 172 173 error = -ENODEV; 174 if (gus->max_flag || gus->ess_flag) { 175 dev_err(dev, "GUS Classic or ACE soundcard was " 176 "not detected at 0x%lx\n", gus->gf1.port); 177 goto out; 178 } 179 180 error = snd_gf1_new_mixer(gus); 181 if (error < 0) 182 goto out; 183 184 error = snd_gf1_pcm_new(gus, 0, 0, NULL); 185 if (error < 0) 186 goto out; 187 188 if (!gus->ace_flag) { 189 error = snd_gf1_rawmidi_new(gus, 0, NULL); 190 if (error < 0) 191 goto out; 192 } 193 194 sprintf(card->longname + strlen(card->longname), 195 " at 0x%lx, irq %d, dma %d", 196 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); 197 198 if (gus->gf1.dma2 >= 0) 199 sprintf(card->longname + strlen(card->longname), 200 "&%d", gus->gf1.dma2); 201 202 error = snd_card_register(card); 203 if (error < 0) 204 goto out; 205 206 dev_set_drvdata(dev, card); 207 return 0; 208 209 out: snd_card_free(card); 210 return error; 211 } 212 213 static int snd_gusclassic_remove(struct device *dev, unsigned int n) 214 { 215 snd_card_free(dev_get_drvdata(dev)); 216 return 0; 217 } 218 219 static struct isa_driver snd_gusclassic_driver = { 220 .match = snd_gusclassic_match, 221 .probe = snd_gusclassic_probe, 222 .remove = snd_gusclassic_remove, 223 #if 0 /* FIXME */ 224 .suspend = snd_gusclassic_suspend, 225 .remove = snd_gusclassic_remove, 226 #endif 227 .driver = { 228 .name = DEV_NAME 229 } 230 }; 231 232 static int __init alsa_card_gusclassic_init(void) 233 { 234 return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS); 235 } 236 237 static void __exit alsa_card_gusclassic_exit(void) 238 { 239 isa_unregister_driver(&snd_gusclassic_driver); 240 } 241 242 module_init(alsa_card_gusclassic_init); 243 module_exit(alsa_card_gusclassic_exit); 244