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 #define PFX "gusclassic: " 76 77 static int __init snd_gusclassic_detect(snd_gus_card_t * gus) 78 { 79 unsigned char d; 80 81 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 82 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 83 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 84 return -ENODEV; 85 } 86 udelay(160); 87 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 88 udelay(160); 89 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 90 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 91 return -ENODEV; 92 } 93 return 0; 94 } 95 96 static void __init snd_gusclassic_init(int dev, snd_gus_card_t * gus) 97 { 98 gus->equal_irq = 0; 99 gus->codec_flag = 0; 100 gus->max_flag = 0; 101 gus->joystick_dac = joystick_dac[dev]; 102 } 103 104 static int __init snd_gusclassic_probe(int dev) 105 { 106 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; 107 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 108 int xirq, xdma1, xdma2; 109 snd_card_t *card; 110 struct snd_gusclassic *guscard; 111 snd_gus_card_t *gus = NULL; 112 int err; 113 114 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 115 if (card == NULL) 116 return -ENOMEM; 117 guscard = (struct snd_gusclassic *)card->private_data; 118 if (pcm_channels[dev] < 2) 119 pcm_channels[dev] = 2; 120 121 xirq = irq[dev]; 122 if (xirq == SNDRV_AUTO_IRQ) { 123 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 124 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); 125 err = -EBUSY; 126 goto _err; 127 } 128 } 129 xdma1 = dma1[dev]; 130 if (xdma1 == SNDRV_AUTO_DMA) { 131 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 132 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); 133 err = -EBUSY; 134 goto _err; 135 } 136 } 137 xdma2 = dma2[dev]; 138 if (xdma2 == SNDRV_AUTO_DMA) { 139 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 140 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); 141 err = -EBUSY; 142 goto _err; 143 } 144 } 145 146 147 if ((err = snd_gus_create(card, 148 port[dev], 149 xirq, xdma1, xdma2, 150 0, channels[dev], pcm_channels[dev], 151 0, &gus)) < 0) 152 goto _err; 153 154 if ((err = snd_gusclassic_detect(gus)) < 0) 155 goto _err; 156 157 snd_gusclassic_init(dev, gus); 158 if ((err = snd_gus_initialize(gus)) < 0) 159 goto _err; 160 161 if (gus->max_flag || gus->ess_flag) { 162 snd_printk(KERN_ERR PFX "GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port); 163 err = -ENODEV; 164 goto _err; 165 } 166 167 if ((err = snd_gf1_new_mixer(gus)) < 0) 168 goto _err; 169 170 if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0) 171 goto _err; 172 173 if (!gus->ace_flag) { 174 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) 175 goto _err; 176 } 177 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1); 178 if (dma2 >= 0) 179 sprintf(card->longname + strlen(card->longname), "&%d", xdma2); 180 181 if ((err = snd_card_set_generic_dev(card)) < 0) 182 goto _err; 183 184 if ((err = snd_card_register(card)) < 0) 185 goto _err; 186 187 snd_gusclassic_cards[dev] = card; 188 return 0; 189 190 _err: 191 snd_card_free(card); 192 return err; 193 } 194 195 static int __init snd_gusclassic_legacy_auto_probe(unsigned long xport) 196 { 197 static int dev; 198 int res; 199 200 for ( ; dev < SNDRV_CARDS; dev++) { 201 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT) 202 continue; 203 port[dev] = xport; 204 res = snd_gusclassic_probe(dev); 205 if (res < 0) 206 port[dev] = SNDRV_AUTO_PORT; 207 return res; 208 } 209 return -ENODEV; 210 } 211 212 static int __init alsa_card_gusclassic_init(void) 213 { 214 static unsigned long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260, -1}; 215 int dev, cards, i; 216 217 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { 218 if (port[dev] == SNDRV_AUTO_PORT) 219 continue; 220 if (snd_gusclassic_probe(dev) >= 0) 221 cards++; 222 } 223 i = snd_legacy_auto_probe(possible_ports, snd_gusclassic_legacy_auto_probe); 224 if (i > 0) 225 cards += i; 226 227 if (!cards) { 228 #ifdef MODULE 229 printk(KERN_ERR "GUS Classic soundcard not found or device busy\n"); 230 #endif 231 return -ENODEV; 232 } 233 return 0; 234 } 235 236 static void __exit alsa_card_gusclassic_exit(void) 237 { 238 int idx; 239 240 for (idx = 0; idx < SNDRV_CARDS; idx++) 241 snd_card_free(snd_gusclassic_cards[idx]); 242 } 243 244 module_init(alsa_card_gusclassic_init) 245 module_exit(alsa_card_gusclassic_exit) 246