diff options
Diffstat (limited to 'sound/isa/sb/sb8.c')
| -rw-r--r-- | sound/isa/sb/sb8.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c new file mode 100644 index 0000000000..e5ef177716 --- /dev/null +++ b/sound/isa/sb/sb8.c @@ -0,0 +1,220 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible + * Copyright (c) by Jaroslav Kysela <perex@perex.cz> + */ + +#include <linux/init.h> +#include <linux/err.h> +#include <linux/isa.h> +#include <linux/ioport.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/sb.h> +#include <sound/opl3.h> +#include <sound/initval.h> + +MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); +MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); +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; /* 0x220,0x240,0x260 */ +static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ +static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); +module_param_hw_array(port, long, ioport, NULL, 0444); +MODULE_PARM_DESC(port, "Port # for SB8 driver."); +module_param_hw_array(irq, int, irq, NULL, 0444); +MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); +module_param_hw_array(dma8, int, dma, NULL, 0444); +MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); + +struct snd_sb8 { + struct resource *fm_res; /* used to block FM i/o region for legacy cards */ + struct snd_sb *chip; +}; + +static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id) +{ + struct snd_sb *chip = dev_id; + + if (chip->open & SB_OPEN_PCM) { + return snd_sb8dsp_interrupt(chip); + } else { + return snd_sb8dsp_midi_interrupt(chip); + } +} + +static int snd_sb8_match(struct device *pdev, unsigned int dev) +{ + if (!enable[dev]) + return 0; + if (irq[dev] == SNDRV_AUTO_IRQ) { + dev_err(pdev, "please specify irq\n"); + return 0; + } + if (dma8[dev] == SNDRV_AUTO_DMA) { + dev_err(pdev, "please specify dma8\n"); + return 0; + } + return 1; +} + +static int snd_sb8_probe(struct device *pdev, unsigned int dev) +{ + struct snd_sb *chip; + struct snd_card *card; + struct snd_sb8 *acard; + struct snd_opl3 *opl3; + int err; + + err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE, + sizeof(struct snd_sb8), &card); + if (err < 0) + return err; + acard = card->private_data; + + /* + * Block the 0x388 port to avoid PnP conflicts. + * No need to check this value after request_region, + * as we never do anything with it. + */ + acard->fm_res = devm_request_region(card->dev, 0x388, 4, + "SoundBlaster FM"); + + if (port[dev] != SNDRV_AUTO_PORT) { + err = snd_sbdsp_create(card, port[dev], irq[dev], + snd_sb8_interrupt, dma8[dev], + -1, SB_HW_AUTO, &chip); + if (err < 0) + return err; + } else { + /* auto-probe legacy ports */ + static const unsigned long possible_ports[] = { + 0x220, 0x240, 0x260, + }; + int i; + for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { + err = snd_sbdsp_create(card, possible_ports[i], + irq[dev], + snd_sb8_interrupt, + dma8[dev], + -1, + SB_HW_AUTO, + &chip); + if (err >= 0) { + port[dev] = possible_ports[i]; + break; + } + } + if (i >= ARRAY_SIZE(possible_ports)) + return -EINVAL; + } + acard->chip = chip; + + if (chip->hardware >= SB_HW_16) { + if (chip->hardware == SB_HW_ALS100) + snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", + port[dev]); + else + snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", + port[dev]); + return -ENODEV; + } + + err = snd_sb8dsp_pcm(chip, 0); + if (err < 0) + return err; + + err = snd_sbmixer_new(chip); + if (err < 0) + return err; + + if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { + err = snd_opl3_create(card, chip->port + 8, 0, + OPL3_HW_AUTO, 1, &opl3); + if (err < 0) + snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); + } else { + err = snd_opl3_create(card, chip->port, chip->port + 2, + OPL3_HW_AUTO, 1, &opl3); + if (err < 0) { + snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", + chip->port, chip->port + 2); + } + } + if (err >= 0) { + err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); + if (err < 0) + return err; + } + + err = snd_sb8dsp_midi(chip, 0); + if (err < 0) + return err; + + strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); + strcpy(card->shortname, chip->name); + sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", + chip->name, + chip->port, + irq[dev], dma8[dev]); + + err = snd_card_register(card); + if (err < 0) + return err; + + dev_set_drvdata(pdev, card); + return 0; +} + +#ifdef CONFIG_PM +static int snd_sb8_suspend(struct device *dev, unsigned int n, + pm_message_t state) +{ + struct snd_card *card = dev_get_drvdata(dev); + struct snd_sb8 *acard = card->private_data; + struct snd_sb *chip = acard->chip; + + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + snd_sbmixer_suspend(chip); + return 0; +} + +static int snd_sb8_resume(struct device *dev, unsigned int n) +{ + struct snd_card *card = dev_get_drvdata(dev); + struct snd_sb8 *acard = card->private_data; + struct snd_sb *chip = acard->chip; + + snd_sbdsp_reset(chip); + snd_sbmixer_resume(chip); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return 0; +} +#endif + +#define DEV_NAME "sb8" + +static struct isa_driver snd_sb8_driver = { + .match = snd_sb8_match, + .probe = snd_sb8_probe, +#ifdef CONFIG_PM + .suspend = snd_sb8_suspend, + .resume = snd_sb8_resume, +#endif + .driver = { + .name = DEV_NAME + }, +}; + +module_isa_driver(snd_sb8_driver, SNDRV_CARDS); |