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