diff options
Diffstat (limited to 'sound/isa/gus/gusclassic.c')
| -rw-r--r-- | sound/isa/gus/gusclassic.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c new file mode 100644 index 000000000..09cc53cee --- /dev/null +++ b/sound/isa/gus/gusclassic.c @@ -0,0 +1,207 @@ +// 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); |