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 <asm/dma.h> 24 #include <linux/init.h> 25 #include <linux/delay.h> 26 #include <linux/time.h> 27 #include <linux/moduleparam.h> 28 #include <sound/core.h> 29 #include <sound/gus.h> 30 #define SNDRV_LEGACY_AUTO_PROBE 31 #define SNDRV_LEGACY_FIND_FREE_IRQ 32 #define SNDRV_LEGACY_FIND_FREE_DMA 33 #include <sound/initval.h> 34 35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 36 MODULE_DESCRIPTION("Gravis UltraSound Classic"); 37 MODULE_LICENSE("GPL"); 38 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); 39 40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 43 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 44 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ 45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 46 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 47 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 48 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 49 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 50 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 51 52 module_param_array(index, int, NULL, 0444); 53 MODULE_PARM_DESC(index, "Index value for GUS Classic soundcard."); 54 module_param_array(id, charp, NULL, 0444); 55 MODULE_PARM_DESC(id, "ID string for GUS Classic soundcard."); 56 module_param_array(enable, bool, NULL, 0444); 57 MODULE_PARM_DESC(enable, "Enable GUS Classic soundcard."); 58 module_param_array(port, long, NULL, 0444); 59 MODULE_PARM_DESC(port, "Port # for GUS Classic driver."); 60 module_param_array(irq, int, NULL, 0444); 61 MODULE_PARM_DESC(irq, "IRQ # for GUS Classic driver."); 62 module_param_array(dma1, int, NULL, 0444); 63 MODULE_PARM_DESC(dma1, "DMA1 # for GUS Classic driver."); 64 module_param_array(dma2, int, NULL, 0444); 65 MODULE_PARM_DESC(dma2, "DMA2 # for GUS Classic driver."); 66 module_param_array(joystick_dac, int, NULL, 0444); 67 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS Classic driver."); 68 module_param_array(channels, int, NULL, 0444); 69 MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver."); 70 module_param_array(pcm_channels, int, NULL, 0444); 71 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver."); 72 73 static snd_card_t *snd_gusclassic_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; 74 75 76 static int __init snd_gusclassic_detect(snd_gus_card_t * gus) 77 { 78 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 79 #ifdef CONFIG_SND_DEBUG_DETECT 80 { 81 unsigned char d; 82 83 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 84 snd_printk("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 85 return -ENODEV; 86 } 87 } 88 #else 89 if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 0) 90 return -ENODEV; 91 #endif 92 udelay(160); 93 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 94 udelay(160); 95 #ifdef CONFIG_SND_DEBUG_DETECT 96 { 97 unsigned char d; 98 99 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 100 snd_printk("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 101 return -ENODEV; 102 } 103 } 104 #else 105 if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 1) 106 return -ENODEV; 107 #endif 108 109 return 0; 110 } 111 112 static void __init snd_gusclassic_init(int dev, snd_gus_card_t * gus) 113 { 114 gus->equal_irq = 0; 115 gus->codec_flag = 0; 116 gus->max_flag = 0; 117 gus->joystick_dac = joystick_dac[dev]; 118 } 119 120 static int __init snd_gusclassic_probe(int dev) 121 { 122 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; 123 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 124 int xirq, xdma1, xdma2; 125 snd_card_t *card; 126 struct snd_gusclassic *guscard; 127 snd_gus_card_t *gus = NULL; 128 int err; 129 130 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 131 if (card == NULL) 132 return -ENOMEM; 133 guscard = (struct snd_gusclassic *)card->private_data; 134 if (pcm_channels[dev] < 2) 135 pcm_channels[dev] = 2; 136 137 xirq = irq[dev]; 138 if (xirq == SNDRV_AUTO_IRQ) { 139 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 140 snd_card_free(card); 141 snd_printk("unable to find a free IRQ\n"); 142 return -EBUSY; 143 } 144 } 145 xdma1 = dma1[dev]; 146 if (xdma1 == SNDRV_AUTO_DMA) { 147 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 148 snd_card_free(card); 149 snd_printk("unable to find a free DMA1\n"); 150 return -EBUSY; 151 } 152 } 153 xdma2 = dma2[dev]; 154 if (xdma2 == SNDRV_AUTO_DMA) { 155 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 156 snd_card_free(card); 157 snd_printk("unable to find a free DMA2\n"); 158 return -EBUSY; 159 } 160 } 161 162 163 if ((err = snd_gus_create(card, 164 port[dev], 165 xirq, xdma1, xdma2, 166 0, channels[dev], pcm_channels[dev], 167 0, &gus)) < 0) { 168 snd_card_free(card); 169 return err; 170 } 171 if ((err = snd_gusclassic_detect(gus)) < 0) { 172 snd_card_free(card); 173 return err; 174 } 175 snd_gusclassic_init(dev, gus); 176 if ((err = snd_gus_initialize(gus)) < 0) { 177 snd_card_free(card); 178 return err; 179 } 180 if (gus->max_flag || gus->ess_flag) { 181 snd_printdd("GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port); 182 snd_card_free(card); 183 return -ENODEV; 184 } 185 if ((err = snd_gf1_new_mixer(gus)) < 0) { 186 snd_card_free(card); 187 return err; 188 } 189 if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0) { 190 snd_card_free(card); 191 return err; 192 } 193 if (!gus->ace_flag) { 194 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) { 195 snd_card_free(card); 196 return err; 197 } 198 } 199 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1); 200 if (dma2 >= 0) 201 sprintf(card->longname + strlen(card->longname), "&%d", xdma2); 202 if ((err = snd_card_register(card)) < 0) { 203 snd_card_free(card); 204 return err; 205 } 206 snd_gusclassic_cards[dev] = card; 207 return 0; 208 } 209 210 static int __init snd_gusclassic_legacy_auto_probe(unsigned long xport) 211 { 212 static int dev; 213 int res; 214 215 for ( ; dev < SNDRV_CARDS; dev++) { 216 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT) 217 continue; 218 port[dev] = xport; 219 res = snd_gusclassic_probe(dev); 220 if (res < 0) 221 port[dev] = SNDRV_AUTO_PORT; 222 return res; 223 } 224 return -ENODEV; 225 } 226 227 static int __init alsa_card_gusclassic_init(void) 228 { 229 static unsigned long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260, -1}; 230 int dev, cards, i; 231 232 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { 233 if (port[dev] == SNDRV_AUTO_PORT) 234 continue; 235 if (snd_gusclassic_probe(dev) >= 0) 236 cards++; 237 } 238 i = snd_legacy_auto_probe(possible_ports, snd_gusclassic_legacy_auto_probe); 239 if (i > 0) 240 cards += i; 241 242 if (!cards) { 243 #ifdef MODULE 244 printk(KERN_ERR "GUS Classic soundcard not found or device busy\n"); 245 #endif 246 return -ENODEV; 247 } 248 return 0; 249 } 250 251 static void __exit alsa_card_gusclassic_exit(void) 252 { 253 int idx; 254 255 for (idx = 0; idx < SNDRV_CARDS; idx++) 256 snd_card_free(snd_gusclassic_cards[idx]); 257 } 258 259 module_init(alsa_card_gusclassic_init) 260 module_exit(alsa_card_gusclassic_exit) 261