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