| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Driver for Gravis UltraSound MAX 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> |
| #include <sound/wss.h> |
| #define SNDRV_LEGACY_FIND_FREE_IRQ |
| #define SNDRV_LEGACY_FIND_FREE_DMA |
| #include <sound/initval.h> |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
| MODULE_DESCRIPTION("Gravis UltraSound MAX"); |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}"); |
| |
| 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; /* 2,3,5,9,11,12,15 */ |
| 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 GUS MAX soundcard."); |
| module_param_array(id, charp, NULL, 0444); |
| MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard."); |
| module_param_array(enable, bool, NULL, 0444); |
| MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard."); |
| module_param_hw_array(port, long, ioport, NULL, 0444); |
| MODULE_PARM_DESC(port, "Port # for GUS MAX driver."); |
| module_param_hw_array(irq, int, irq, NULL, 0444); |
| MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver."); |
| module_param_hw_array(dma1, int, dma, NULL, 0444); |
| MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver."); |
| module_param_hw_array(dma2, int, dma, NULL, 0444); |
| MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX 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 GUS MAX driver."); |
| module_param_array(channels, int, NULL, 0444); |
| MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver."); |
| module_param_array(pcm_channels, int, NULL, 0444); |
| MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver."); |
| |
| struct snd_gusmax { |
| int irq; |
| struct snd_card *card; |
| struct snd_gus_card *gus; |
| struct snd_wss *wss; |
| unsigned short gus_status_reg; |
| unsigned short pcm_status_reg; |
| }; |
| |
| #define PFX "gusmax: " |
| |
| static int snd_gusmax_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 irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id) |
| { |
| struct snd_gusmax *maxcard = dev_id; |
| int loop, max = 5; |
| int handled = 0; |
| |
| do { |
| loop = 0; |
| if (inb(maxcard->gus_status_reg)) { |
| handled = 1; |
| snd_gus_interrupt(irq, maxcard->gus); |
| loop++; |
| } |
| if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */ |
| handled = 1; |
| snd_wss_interrupt(irq, maxcard->wss); |
| loop++; |
| } |
| } while (loop && --max > 0); |
| return IRQ_RETVAL(handled); |
| } |
| |
| static void snd_gusmax_init(int dev, struct snd_card *card, |
| struct snd_gus_card *gus) |
| { |
| gus->equal_irq = 1; |
| gus->codec_flag = 1; |
| gus->joystick_dac = joystick_dac[dev]; |
| /* init control register */ |
| gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f; |
| if (gus->gf1.dma1 > 3) |
| gus->max_cntrl_val |= 0x10; |
| if (gus->gf1.dma2 > 3) |
| gus->max_cntrl_val |= 0x20; |
| gus->max_cntrl_val |= 0x40; |
| outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT)); |
| } |
| |
| static int snd_gusmax_mixer(struct snd_wss *chip) |
| { |
| struct snd_card *card = chip->card; |
| struct snd_ctl_elem_id id1, id2; |
| int err; |
| |
| memset(&id1, 0, sizeof(id1)); |
| memset(&id2, 0, sizeof(id2)); |
| id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
| /* reassign AUXA to SYNTHESIZER */ |
| strcpy(id1.name, "Aux Playback Switch"); |
| strcpy(id2.name, "Synth Playback Switch"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| strcpy(id1.name, "Aux Playback Volume"); |
| strcpy(id2.name, "Synth Playback Volume"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| /* reassign AUXB to CD */ |
| strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; |
| strcpy(id2.name, "CD Playback Switch"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| strcpy(id1.name, "Aux Playback Volume"); |
| strcpy(id2.name, "CD Playback Volume"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| #if 0 |
| /* reassign Mono Input to MIC */ |
| if (snd_mixer_group_rename(mixer, |
| SNDRV_MIXER_IN_MONO, 0, |
| SNDRV_MIXER_IN_MIC, 0) < 0) |
| goto __error; |
| if (snd_mixer_elem_rename(mixer, |
| SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT, |
| SNDRV_MIXER_IN_MIC, 0) < 0) |
| goto __error; |
| if (snd_mixer_elem_rename(mixer, |
| "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1, |
| "Mic Capture Volume", 0) < 0) |
| goto __error; |
| if (snd_mixer_elem_rename(mixer, |
| "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1, |
| "Mic Capture Switch", 0) < 0) |
| goto __error; |
| #endif |
| return 0; |
| } |
| |
| static void snd_gusmax_free(struct snd_card *card) |
| { |
| struct snd_gusmax *maxcard = card->private_data; |
| |
| if (maxcard == NULL) |
| return; |
| if (maxcard->irq >= 0) |
| free_irq(maxcard->irq, (void *)maxcard); |
| } |
| |
| static int snd_gusmax_match(struct device *pdev, unsigned int dev) |
| { |
| return enable[dev]; |
| } |
| |
| static int snd_gusmax_probe(struct device *pdev, unsigned int dev) |
| { |
| static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1}; |
| static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; |
| int xirq, xdma1, xdma2, err; |
| struct snd_card *card; |
| struct snd_gus_card *gus = NULL; |
| struct snd_wss *wss; |
| struct snd_gusmax *maxcard; |
| |
| err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE, |
| sizeof(struct snd_gusmax), &card); |
| if (err < 0) |
| return err; |
| card->private_free = snd_gusmax_free; |
| maxcard = card->private_data; |
| maxcard->card = card; |
| maxcard->irq = -1; |
| |
| xirq = irq[dev]; |
| if (xirq == SNDRV_AUTO_IRQ) { |
| if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { |
| snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); |
| err = -EBUSY; |
| goto _err; |
| } |
| } |
| xdma1 = dma1[dev]; |
| if (xdma1 == SNDRV_AUTO_DMA) { |
| if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { |
| snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); |
| err = -EBUSY; |
| goto _err; |
| } |
| } |
| xdma2 = dma2[dev]; |
| if (xdma2 == SNDRV_AUTO_DMA) { |
| if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { |
| snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); |
| err = -EBUSY; |
| goto _err; |
| } |
| } |
| |
| if (port[dev] != SNDRV_AUTO_PORT) { |
| err = snd_gus_create(card, |
| port[dev], |
| -xirq, xdma1, xdma2, |
| 0, channels[dev], |
| pcm_channels[dev], |
| 0, &gus); |
| } else { |
| static unsigned long possible_ports[] = { |
| 0x220, 0x230, 0x240, 0x250, 0x260 |
| }; |
| int i; |
| for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { |
| err = snd_gus_create(card, |
| possible_ports[i], |
| -xirq, xdma1, xdma2, |
| 0, channels[dev], |
| pcm_channels[dev], |
| 0, &gus); |
| if (err >= 0) { |
| port[dev] = possible_ports[i]; |
| break; |
| } |
| } |
| } |
| if (err < 0) |
| goto _err; |
| |
| if ((err = snd_gusmax_detect(gus)) < 0) |
| goto _err; |
| |
| maxcard->gus_status_reg = gus->gf1.reg_irqstat; |
| maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2; |
| snd_gusmax_init(dev, card, gus); |
| if ((err = snd_gus_initialize(gus)) < 0) |
| goto _err; |
| |
| if (!gus->max_flag) { |
| snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port); |
| err = -ENODEV; |
| goto _err; |
| } |
| |
| if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) { |
| snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq); |
| err = -EBUSY; |
| goto _err; |
| } |
| maxcard->irq = xirq; |
| |
| err = snd_wss_create(card, |
| gus->gf1.port + 0x10c, -1, xirq, |
| xdma2 < 0 ? xdma1 : xdma2, xdma1, |
| WSS_HW_DETECT, |
| WSS_HWSHARE_IRQ | |
| WSS_HWSHARE_DMA1 | |
| WSS_HWSHARE_DMA2, |
| &wss); |
| if (err < 0) |
| goto _err; |
| |
| err = snd_wss_pcm(wss, 0); |
| if (err < 0) |
| goto _err; |
| |
| err = snd_wss_mixer(wss); |
| if (err < 0) |
| goto _err; |
| |
| err = snd_wss_timer(wss, 2); |
| if (err < 0) |
| goto _err; |
| |
| if (pcm_channels[dev] > 0) { |
| if ((err = snd_gf1_pcm_new(gus, 1, 1)) < 0) |
| goto _err; |
| } |
| err = snd_gusmax_mixer(wss); |
| if (err < 0) |
| goto _err; |
| |
| err = snd_gf1_rawmidi_new(gus, 0); |
| if (err < 0) |
| goto _err; |
| |
| sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1); |
| if (xdma2 >= 0) |
| sprintf(card->longname + strlen(card->longname), "&%i", xdma2); |
| |
| err = snd_card_register(card); |
| if (err < 0) |
| goto _err; |
| |
| maxcard->gus = gus; |
| maxcard->wss = wss; |
| |
| dev_set_drvdata(pdev, card); |
| return 0; |
| |
| _err: |
| snd_card_free(card); |
| return err; |
| } |
| |
| static int snd_gusmax_remove(struct device *devptr, unsigned int dev) |
| { |
| snd_card_free(dev_get_drvdata(devptr)); |
| return 0; |
| } |
| |
| #define DEV_NAME "gusmax" |
| |
| static struct isa_driver snd_gusmax_driver = { |
| .match = snd_gusmax_match, |
| .probe = snd_gusmax_probe, |
| .remove = snd_gusmax_remove, |
| /* FIXME: suspend/resume */ |
| .driver = { |
| .name = DEV_NAME |
| }, |
| }; |
| |
| module_isa_driver(snd_gusmax_driver, SNDRV_CARDS); |