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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)4 * Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,5 * Jaroslav Kysela <perex@perex.cz>6 * Based on card-4232.c by Jaroslav Kysela <perex@perex.cz>7 */8 9#include <linux/init.h>10#include <linux/err.h>11#include <linux/isa.h>12#include <linux/time.h>13#include <linux/wait.h>14#include <linux/module.h>15#include <sound/core.h>16#include <sound/wss.h>17#include <sound/initval.h>18 19#define CRD_NAME "Generic AD1848/AD1847/CS4248"20#define DEV_NAME "ad1848"21 22MODULE_DESCRIPTION(CRD_NAME);23MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");24MODULE_LICENSE("GPL");25 26static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */27static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */28static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */29static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */30static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */31static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */32static bool thinkpad[SNDRV_CARDS]; /* Thinkpad special case */33 34module_param_array(index, int, NULL, 0444);35MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");36module_param_array(id, charp, NULL, 0444);37MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");38module_param_array(enable, bool, NULL, 0444);39MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");40module_param_hw_array(port, long, ioport, NULL, 0444);41MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");42module_param_hw_array(irq, int, irq, NULL, 0444);43MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");44module_param_hw_array(dma1, int, dma, NULL, 0444);45MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");46module_param_array(thinkpad, bool, NULL, 0444);47MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");48 49static int snd_ad1848_match(struct device *dev, unsigned int n)50{51 if (!enable[n])52 return 0;53 54 if (port[n] == SNDRV_AUTO_PORT) {55 dev_err(dev, "please specify port\n");56 return 0;57 }58 if (irq[n] == SNDRV_AUTO_IRQ) {59 dev_err(dev, "please specify irq\n");60 return 0; 61 }62 if (dma1[n] == SNDRV_AUTO_DMA) {63 dev_err(dev, "please specify dma1\n");64 return 0;65 }66 return 1;67}68 69static int snd_ad1848_probe(struct device *dev, unsigned int n)70{71 struct snd_card *card;72 struct snd_wss *chip;73 int error;74 75 error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);76 if (error < 0)77 return error;78 79 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,80 thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,81 0, &chip);82 if (error < 0)83 return error;84 85 card->private_data = chip;86 87 error = snd_wss_pcm(chip, 0);88 if (error < 0)89 return error;90 91 error = snd_wss_mixer(chip);92 if (error < 0)93 return error;94 95 strscpy(card->driver, "AD1848", sizeof(card->driver));96 strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));97 98 if (!thinkpad[n])99 scnprintf(card->longname, sizeof(card->longname),100 "%s at 0x%lx, irq %d, dma %d",101 chip->pcm->name, chip->port, irq[n], dma1[n]);102 else103 scnprintf(card->longname, sizeof(card->longname),104 "%s at 0x%lx, irq %d, dma %d [Thinkpad]",105 chip->pcm->name, chip->port, irq[n], dma1[n]);106 107 error = snd_card_register(card);108 if (error < 0)109 return error;110 111 dev_set_drvdata(dev, card);112 return 0;113}114 115#ifdef CONFIG_PM116static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)117{118 struct snd_card *card = dev_get_drvdata(dev);119 struct snd_wss *chip = card->private_data;120 121 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);122 chip->suspend(chip);123 return 0;124}125 126static int snd_ad1848_resume(struct device *dev, unsigned int n)127{128 struct snd_card *card = dev_get_drvdata(dev);129 struct snd_wss *chip = card->private_data;130 131 chip->resume(chip);132 snd_power_change_state(card, SNDRV_CTL_POWER_D0);133 return 0;134}135#endif136 137static struct isa_driver snd_ad1848_driver = {138 .match = snd_ad1848_match,139 .probe = snd_ad1848_probe,140#ifdef CONFIG_PM141 .suspend = snd_ad1848_suspend,142 .resume = snd_ad1848_resume,143#endif144 .driver = {145 .name = DEV_NAME146 }147};148 149module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);150