ad1848.c (4321B)
1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 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 snprintf(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 else 103 snprintf(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_PM 116static 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#endif 136 137static struct isa_driver snd_ad1848_driver = { 138 .match = snd_ad1848_match, 139 .probe = snd_ad1848_probe, 140#ifdef CONFIG_PM 141 .suspend = snd_ad1848_suspend, 142 .resume = snd_ad1848_resume, 143#endif 144 .driver = { 145 .name = DEV_NAME 146 } 147}; 148 149module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);