150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
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* Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
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* Jaroslav Kysela <perex@perex.cz>
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* Based on card-4232.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/time.h>
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#include <linux/wait.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/wss.h>
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#include <sound/initval.h>
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#define CRD_NAME "Generic AD1848/AD1847/CS4248"
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#define DEV_NAME "ad1848"
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MODULE_DESCRIPTION(CRD_NAME);
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MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
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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; /* PnP setup */
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
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static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
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static bool thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
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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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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(irq, int, irq, NULL, 0444);
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MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
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module_param_hw_array(dma1, int, dma, NULL, 0444);
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MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
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module_param_array(thinkpad, bool, NULL, 0444);
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MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
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static int snd_ad1848_match(struct device *dev, unsigned int n)
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{
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if (!enable[n])
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return 0;
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if (port[n] == SNDRV_AUTO_PORT) {
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dev_err(dev, "please specify port\n");
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return 0;
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}
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if (irq[n] == SNDRV_AUTO_IRQ) {
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dev_err(dev, "please specify irq\n");
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return 0;
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}
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if (dma1[n] == SNDRV_AUTO_DMA) {
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dev_err(dev, "please specify dma1\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_ad1848_probe(struct device *dev, unsigned int n)
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{
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struct snd_card *card;
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struct snd_wss *chip;
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int error;
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error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
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if (error < 0)
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return error;
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error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
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thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
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0, &chip);
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if (error < 0)
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return error;
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card->private_data = chip;
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error = snd_wss_pcm(chip, 0);
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if (error < 0)
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return error;
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error = snd_wss_mixer(chip);
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if (error < 0)
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return error;
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strscpy(card->driver, "AD1848", sizeof(card->driver));
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strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
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if (!thinkpad[n])
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snprintf(card->longname, sizeof(card->longname),
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"%s at 0x%lx, irq %d, dma %d",
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chip->pcm->name, chip->port, irq[n], dma1[n]);
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else
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snprintf(card->longname, sizeof(card->longname),
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"%s at 0x%lx, irq %d, dma %d [Thinkpad]",
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chip->pcm->name, chip->port, irq[n], dma1[n]);
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error = snd_card_register(card);
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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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#ifdef CONFIG_PM
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static int snd_ad1848_suspend(struct device *dev, unsigned int n, 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_wss *chip = card->private_data;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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chip->suspend(chip);
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return 0;
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}
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static int snd_ad1848_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_wss *chip = card->private_data;
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chip->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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static struct isa_driver snd_ad1848_driver = {
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.match = snd_ad1848_match,
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.probe = snd_ad1848_probe,
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#ifdef CONFIG_PM
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.suspend = snd_ad1848_suspend,
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.resume = snd_ad1848_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_ad1848_driver, SNDRV_CARDS);
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