| // 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"); |
| MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}"); |
| |
| 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 long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; |
| static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; |
| static 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 */ |
| if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 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); |
| if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 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_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) |
| goto out; |
| |
| error = snd_gusclassic_detect(gus); |
| if (error < 0) |
| goto out; |
| |
| gus->joystick_dac = joystick_dac[n]; |
| |
| error = snd_gus_initialize(gus); |
| if (error < 0) |
| goto out; |
| |
| 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); |
| goto out; |
| } |
| |
| error = snd_gf1_new_mixer(gus); |
| if (error < 0) |
| goto out; |
| |
| error = snd_gf1_pcm_new(gus, 0, 0); |
| if (error < 0) |
| goto out; |
| |
| if (!gus->ace_flag) { |
| error = snd_gf1_rawmidi_new(gus, 0); |
| if (error < 0) |
| goto out; |
| } |
| |
| 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) |
| goto out; |
| |
| dev_set_drvdata(dev, card); |
| return 0; |
| |
| out: snd_card_free(card); |
| return error; |
| } |
| |
| static int snd_gusclassic_remove(struct device *dev, unsigned int n) |
| { |
| snd_card_free(dev_get_drvdata(dev)); |
| return 0; |
| } |
| |
| static struct isa_driver snd_gusclassic_driver = { |
| .match = snd_gusclassic_match, |
| .probe = snd_gusclassic_probe, |
| .remove = snd_gusclassic_remove, |
| #if 0 /* FIXME */ |
| .suspend = snd_gusclassic_suspend, |
| .remove = snd_gusclassic_remove, |
| #endif |
| .driver = { |
| .name = DEV_NAME |
| } |
| }; |
| |
| module_isa_driver(snd_gusclassic_driver, SNDRV_CARDS); |