331 lines
8.8 KiB
C
331 lines
8.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for generic ESS AudioDrive ESx688 soundcards
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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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/isapnp.h>
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#include <linux/time.h>
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#include <linux/wait.h>
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#include <linux/module.h>
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#include <asm/dma.h>
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#include <sound/core.h>
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#include <sound/es1688.h>
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#include <sound/mpu401.h>
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#include <sound/opl3.h>
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#define SNDRV_LEGACY_FIND_FREE_IRQ
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#define SNDRV_LEGACY_FIND_FREE_DMA
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#include <sound/initval.h>
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#define CRD_NAME "Generic ESS ES1688/ES688 AudioDrive"
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#define DEV_NAME "es1688"
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MODULE_DESCRIPTION(CRD_NAME);
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MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("snd_es968");
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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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#ifdef CONFIG_PNP
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static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
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#endif
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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 long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* Usually 0x388 */
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static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
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static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
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static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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#ifdef CONFIG_PNP
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module_param_array(isapnp, bool, NULL, 0444);
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MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
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#endif
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MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
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module_param_hw_array(port, long, ioport, NULL, 0444);
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MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
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module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
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MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
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module_param_hw_array(irq, int, irq, NULL, 0444);
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module_param_hw_array(fm_port, long, ioport, NULL, 0444);
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MODULE_PARM_DESC(fm_port, "FM port # for ES1688 driver.");
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MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
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module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
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MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " 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 " CRD_NAME " driver.");
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#ifdef CONFIG_PNP
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#define is_isapnp_selected(dev) isapnp[dev]
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#else
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#define is_isapnp_selected(dev) 0
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#endif
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static int snd_es1688_match(struct device *dev, unsigned int n)
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{
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return enable[n] && !is_isapnp_selected(n);
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}
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static int snd_es1688_legacy_create(struct snd_card *card,
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struct device *dev, unsigned int n)
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{
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struct snd_es1688 *chip = card->private_data;
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static const long possible_ports[] = {0x220, 0x240, 0x260};
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static const int possible_irqs[] = {5, 9, 10, 7, -1};
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static const int possible_dmas[] = {1, 3, 0, -1};
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int i, error;
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if (irq[n] == SNDRV_AUTO_IRQ) {
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irq[n] = snd_legacy_find_free_irq(possible_irqs);
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if (irq[n] < 0) {
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dev_err(dev, "unable to find a free IRQ\n");
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return -EBUSY;
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}
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}
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if (dma8[n] == SNDRV_AUTO_DMA) {
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dma8[n] = snd_legacy_find_free_dma(possible_dmas);
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if (dma8[n] < 0) {
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dev_err(dev, "unable to find a free DMA\n");
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return -EBUSY;
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}
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}
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if (port[n] != SNDRV_AUTO_PORT)
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return snd_es1688_create(card, chip, port[n], mpu_port[n],
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irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
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i = 0;
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do {
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port[n] = possible_ports[i];
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error = snd_es1688_create(card, chip, port[n], mpu_port[n],
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irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
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} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
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return error;
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}
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static int snd_es1688_probe(struct snd_card *card, unsigned int n)
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{
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struct snd_es1688 *chip = card->private_data;
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struct snd_opl3 *opl3;
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int error;
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error = snd_es1688_pcm(card, chip, 0);
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if (error < 0)
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return error;
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error = snd_es1688_mixer(card, chip);
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if (error < 0)
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return error;
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strscpy(card->driver, "ES1688", sizeof(card->driver));
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strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
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snprintf(card->longname, sizeof(card->longname),
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"%s at 0x%lx, irq %i, dma %i", chip->pcm->name, chip->port,
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chip->irq, chip->dma8);
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if (fm_port[n] == SNDRV_AUTO_PORT)
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fm_port[n] = port[n]; /* share the same port */
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if (fm_port[n] > 0) {
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if (snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
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OPL3_HW_OPL3, 0, &opl3) < 0)
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dev_warn(card->dev,
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"opl3 not detected at 0x%lx\n", fm_port[n]);
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else {
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error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
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if (error < 0)
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return error;
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}
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}
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if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
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chip->mpu_port > 0) {
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error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
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chip->mpu_port, 0,
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mpu_irq[n], NULL);
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if (error < 0)
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return error;
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}
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return snd_card_register(card);
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}
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static int snd_es1688_isa_probe(struct device *dev, unsigned int n)
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{
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struct snd_card *card;
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int error;
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error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE,
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sizeof(struct snd_es1688), &card);
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if (error < 0)
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return error;
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error = snd_es1688_legacy_create(card, dev, n);
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if (error < 0)
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return error;
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error = snd_es1688_probe(card, n);
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if (error < 0)
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return error;
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dev_set_drvdata(dev, card);
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return 0;
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}
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static struct isa_driver snd_es1688_driver = {
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.match = snd_es1688_match,
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.probe = snd_es1688_isa_probe,
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#if 0 /* FIXME */
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.suspend = snd_es1688_suspend,
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.resume = snd_es1688_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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static int snd_es968_pnp_is_probed;
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#ifdef CONFIG_PNP
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static int snd_card_es968_pnp(struct snd_card *card, unsigned int n,
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struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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{
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struct snd_es1688 *chip = card->private_data;
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struct pnp_dev *pdev;
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int error;
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pdev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
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if (pdev == NULL)
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return -ENODEV;
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error = pnp_activate_dev(pdev);
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if (error < 0) {
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snd_printk(KERN_ERR "ES968 pnp configure failure\n");
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return error;
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}
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port[n] = pnp_port_start(pdev, 0);
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dma8[n] = pnp_dma(pdev, 0);
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irq[n] = pnp_irq(pdev, 0);
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return snd_es1688_create(card, chip, port[n], mpu_port[n], irq[n],
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mpu_irq[n], dma8[n], ES1688_HW_AUTO);
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}
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static int snd_es968_pnp_detect(struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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{
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struct snd_card *card;
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static unsigned int dev;
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int error;
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if (snd_es968_pnp_is_probed)
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return -EBUSY;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (enable[dev] && isapnp[dev])
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break;
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}
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if (dev == SNDRV_CARDS)
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return -ENODEV;
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error = snd_devm_card_new(&pcard->card->dev,
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index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_es1688), &card);
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if (error < 0)
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return error;
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error = snd_card_es968_pnp(card, dev, pcard, pid);
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if (error < 0)
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return error;
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error = snd_es1688_probe(card, dev);
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if (error < 0)
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return error;
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pnp_set_card_drvdata(pcard, card);
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snd_es968_pnp_is_probed = 1;
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return 0;
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}
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static void snd_es968_pnp_remove(struct pnp_card_link *pcard)
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{
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snd_es968_pnp_is_probed = 0;
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}
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#ifdef CONFIG_PM
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static int snd_es968_pnp_suspend(struct pnp_card_link *pcard,
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pm_message_t state)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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return 0;
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}
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static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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struct snd_es1688 *chip = card->private_data;
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snd_es1688_reset(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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static const struct pnp_card_device_id snd_es968_pnpids[] = {
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{ .id = "ESS0968", .devs = { { "@@@0968" }, } },
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{ .id = "ESS0968", .devs = { { "ESS0968" }, } },
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{ .id = "", } /* end */
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};
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MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
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static struct pnp_card_driver es968_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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.name = DEV_NAME " PnP",
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.id_table = snd_es968_pnpids,
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.probe = snd_es968_pnp_detect,
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.remove = snd_es968_pnp_remove,
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#ifdef CONFIG_PM
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.suspend = snd_es968_pnp_suspend,
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.resume = snd_es968_pnp_resume,
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#endif
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};
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#endif
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static int __init alsa_card_es1688_init(void)
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{
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#ifdef CONFIG_PNP
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pnp_register_card_driver(&es968_pnpc_driver);
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if (snd_es968_pnp_is_probed)
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return 0;
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pnp_unregister_card_driver(&es968_pnpc_driver);
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#endif
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return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
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}
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static void __exit alsa_card_es1688_exit(void)
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{
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if (!snd_es968_pnp_is_probed) {
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isa_unregister_driver(&snd_es1688_driver);
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return;
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}
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#ifdef CONFIG_PNP
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pnp_unregister_card_driver(&es968_pnpc_driver);
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#endif
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}
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module_init(alsa_card_es1688_init);
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module_exit(alsa_card_es1688_exit);
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