1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for Gravis UltraSound Classic soundcard 4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 5 */ 6 7 #include <linux/init.h> 8 #include <linux/err.h> 9 #include <linux/isa.h> 10 #include <linux/delay.h> 11 #include <linux/time.h> 12 #include <linux/module.h> 13 #include <asm/dma.h> 14 #include <sound/core.h> 15 #include <sound/gus.h> 16 #define SNDRV_LEGACY_FIND_FREE_IRQ 17 #define SNDRV_LEGACY_FIND_FREE_DMA 18 #include <sound/initval.h> 19 20 #define CRD_NAME "Gravis UltraSound Classic" 21 #define DEV_NAME "gusclassic" 22 23 MODULE_DESCRIPTION(CRD_NAME); 24 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 25 MODULE_LICENSE("GPL"); 26 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); 27 28 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 29 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 30 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 31 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 32 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ 33 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 34 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 35 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 36 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 37 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 38 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 39 40 module_param_array(index, int, NULL, 0444); 41 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); 42 module_param_array(id, charp, NULL, 0444); 43 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); 44 module_param_array(enable, bool, NULL, 0444); 45 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); 46 module_param_hw_array(port, long, ioport, NULL, 0444); 47 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); 48 module_param_hw_array(irq, int, irq, NULL, 0444); 49 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 50 module_param_hw_array(dma1, int, dma, NULL, 0444); 51 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 52 module_param_hw_array(dma2, int, dma, NULL, 0444); 53 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); 54 module_param_array(joystick_dac, int, NULL, 0444); 55 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver."); 56 module_param_array(channels, int, NULL, 0444); 57 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver."); 58 module_param_array(pcm_channels, int, NULL, 0444); 59 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver."); 60 61 static int snd_gusclassic_match(struct device *dev, unsigned int n) 62 { 63 return enable[n]; 64 } 65 66 static int snd_gusclassic_create(struct snd_card *card, 67 struct device *dev, unsigned int n, 68 struct snd_gus_card **rgus) 69 { 70 static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; 71 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; 72 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 73 74 int i, error; 75 76 if (irq[n] == SNDRV_AUTO_IRQ) { 77 irq[n] = snd_legacy_find_free_irq(possible_irqs); 78 if (irq[n] < 0) { 79 dev_err(dev, "unable to find a free IRQ\n"); 80 return -EBUSY; 81 } 82 } 83 if (dma1[n] == SNDRV_AUTO_DMA) { 84 dma1[n] = snd_legacy_find_free_dma(possible_dmas); 85 if (dma1[n] < 0) { 86 dev_err(dev, "unable to find a free DMA1\n"); 87 return -EBUSY; 88 } 89 } 90 if (dma2[n] == SNDRV_AUTO_DMA) { 91 dma2[n] = snd_legacy_find_free_dma(possible_dmas); 92 if (dma2[n] < 0) { 93 dev_err(dev, "unable to find a free DMA2\n"); 94 return -EBUSY; 95 } 96 } 97 98 if (port[n] != SNDRV_AUTO_PORT) 99 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 100 0, channels[n], pcm_channels[n], 0, rgus); 101 102 i = 0; 103 do { 104 port[n] = possible_ports[i]; 105 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 106 0, channels[n], pcm_channels[n], 0, rgus); 107 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); 108 109 return error; 110 } 111 112 static int snd_gusclassic_detect(struct snd_gus_card *gus) 113 { 114 unsigned char d; 115 116 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 117 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 118 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 119 return -ENODEV; 120 } 121 udelay(160); 122 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 123 udelay(160); 124 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 125 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 126 return -ENODEV; 127 } 128 return 0; 129 } 130 131 static int snd_gusclassic_probe(struct device *dev, unsigned int n) 132 { 133 struct snd_card *card; 134 struct snd_gus_card *gus; 135 int error; 136 137 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); 138 if (error < 0) 139 return error; 140 141 if (pcm_channels[n] < 2) 142 pcm_channels[n] = 2; 143 144 error = snd_gusclassic_create(card, dev, n, &gus); 145 if (error < 0) 146 goto out; 147 148 error = snd_gusclassic_detect(gus); 149 if (error < 0) 150 goto out; 151 152 gus->joystick_dac = joystick_dac[n]; 153 154 error = snd_gus_initialize(gus); 155 if (error < 0) 156 goto out; 157 158 error = -ENODEV; 159 if (gus->max_flag || gus->ess_flag) { 160 dev_err(dev, "GUS Classic or ACE soundcard was " 161 "not detected at 0x%lx\n", gus->gf1.port); 162 goto out; 163 } 164 165 error = snd_gf1_new_mixer(gus); 166 if (error < 0) 167 goto out; 168 169 error = snd_gf1_pcm_new(gus, 0, 0); 170 if (error < 0) 171 goto out; 172 173 if (!gus->ace_flag) { 174 error = snd_gf1_rawmidi_new(gus, 0); 175 if (error < 0) 176 goto out; 177 } 178 179 sprintf(card->longname + strlen(card->longname), 180 " at 0x%lx, irq %d, dma %d", 181 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); 182 183 if (gus->gf1.dma2 >= 0) 184 sprintf(card->longname + strlen(card->longname), 185 "&%d", gus->gf1.dma2); 186 187 error = snd_card_register(card); 188 if (error < 0) 189 goto out; 190 191 dev_set_drvdata(dev, card); 192 return 0; 193 194 out: snd_card_free(card); 195 return error; 196 } 197 198 static int snd_gusclassic_remove(struct device *dev, unsigned int n) 199 { 200 snd_card_free(dev_get_drvdata(dev)); 201 return 0; 202 } 203 204 static struct isa_driver snd_gusclassic_driver = { 205 .match = snd_gusclassic_match, 206 .probe = snd_gusclassic_probe, 207 .remove = snd_gusclassic_remove, 208 #if 0 /* FIXME */ 209 .suspend = snd_gusclassic_suspend, 210 .remove = snd_gusclassic_remove, 211 #endif 212 .driver = { 213 .name = DEV_NAME 214 } 215 }; 216 217 module_isa_driver(snd_gusclassic_driver, SNDRV_CARDS); 218