// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Gravis UltraSound Classic soundcard * Copyright (c) by Jaroslav Kysela */ #include #include #include #include #include #include #include #include #include #define SNDRV_LEGACY_FIND_FREE_IRQ #define SNDRV_LEGACY_FIND_FREE_DMA #include #define CRD_NAME "Gravis UltraSound Classic" #define DEV_NAME "gusclassic" MODULE_DESCRIPTION(CRD_NAME); MODULE_AUTHOR("Jaroslav Kysela "); 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) { dev_dbg(gus->card->dev, "[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) { dev_dbg(gus->card->dev, "[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);