169 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Generic driver for CS4231 chips4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>5 * Originally the CS4232/CS4232A driver, modified for use on CS4231 by6 * Tugrul Galatali <galatalt@stuy.edu>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/mpu401.h>18#include <sound/initval.h>19 20#define CRD_NAME "Generic CS4231"21#define DEV_NAME "cs4231"22 23MODULE_DESCRIPTION(CRD_NAME);24MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");25MODULE_LICENSE("GPL");26 27static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */28static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */29static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */30static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */31static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */32static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */33static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */34static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */35static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */36 37module_param_array(index, int, NULL, 0444);38MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");39module_param_array(id, charp, NULL, 0444);40MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");41module_param_array(enable, bool, NULL, 0444);42MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");43module_param_hw_array(port, long, ioport, NULL, 0444);44MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");45module_param_hw_array(mpu_port, long, ioport, NULL, 0444);46MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");47module_param_hw_array(irq, int, irq, NULL, 0444);48MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");49module_param_hw_array(mpu_irq, int, irq, NULL, 0444);50MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");51module_param_hw_array(dma1, int, dma, NULL, 0444);52MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");53module_param_hw_array(dma2, int, dma, NULL, 0444);54MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");55 56static int snd_cs4231_match(struct device *dev, unsigned int n)57{58 if (!enable[n])59 return 0;60 61 if (port[n] == SNDRV_AUTO_PORT) {62 dev_err(dev, "please specify port\n");63 return 0;64 }65 if (irq[n] == SNDRV_AUTO_IRQ) {66 dev_err(dev, "please specify irq\n");67 return 0;68 }69 if (dma1[n] == SNDRV_AUTO_DMA) {70 dev_err(dev, "please specify dma1\n");71 return 0;72 }73 return 1;74}75 76static int snd_cs4231_probe(struct device *dev, unsigned int n)77{78 struct snd_card *card;79 struct snd_wss *chip;80 int error;81 82 error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);83 if (error < 0)84 return error;85 86 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],87 WSS_HW_DETECT, 0, &chip);88 if (error < 0)89 return error;90 91 card->private_data = chip;92 93 error = snd_wss_pcm(chip, 0);94 if (error < 0)95 return error;96 97 strscpy(card->driver, "CS4231", sizeof(card->driver));98 strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));99 100 if (dma2[n] < 0)101 scnprintf(card->longname, sizeof(card->longname),102 "%s at 0x%lx, irq %d, dma %d",103 chip->pcm->name, chip->port, irq[n], dma1[n]);104 else105 scnprintf(card->longname, sizeof(card->longname),106 "%s at 0x%lx, irq %d, dma %d&%d",107 chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);108 109 error = snd_wss_mixer(chip);110 if (error < 0)111 return error;112 113 error = snd_wss_timer(chip, 0);114 if (error < 0)115 return error;116 117 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {118 if (mpu_irq[n] == SNDRV_AUTO_IRQ)119 mpu_irq[n] = -1;120 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,121 mpu_port[n], 0, mpu_irq[n],122 NULL) < 0)123 dev_warn(dev, "MPU401 not detected\n");124 }125 126 error = snd_card_register(card);127 if (error < 0)128 return error;129 130 dev_set_drvdata(dev, card);131 return 0;132}133 134#ifdef CONFIG_PM135static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)136{137 struct snd_card *card = dev_get_drvdata(dev);138 struct snd_wss *chip = card->private_data;139 140 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);141 chip->suspend(chip);142 return 0;143}144 145static int snd_cs4231_resume(struct device *dev, unsigned int n)146{147 struct snd_card *card = dev_get_drvdata(dev);148 struct snd_wss *chip = card->private_data;149 150 chip->resume(chip);151 snd_power_change_state(card, SNDRV_CTL_POWER_D0);152 return 0;153}154#endif155 156static struct isa_driver snd_cs4231_driver = {157 .match = snd_cs4231_match,158 .probe = snd_cs4231_probe,159#ifdef CONFIG_PM160 .suspend = snd_cs4231_suspend,161 .resume = snd_cs4231_resume,162#endif163 .driver = {164 .name = DEV_NAME165 }166};167 168module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);169