| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Generic driver for CS4231 chips |
| * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| * Originally the CS4232/CS4232A driver, modified for use on CS4231 by |
| * Tugrul Galatali <galatalt@stuy.edu> |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/err.h> |
| #include <linux/isa.h> |
| #include <linux/time.h> |
| #include <linux/wait.h> |
| #include <linux/module.h> |
| #include <sound/core.h> |
| #include <sound/wss.h> |
| #include <sound/mpu401.h> |
| #include <sound/initval.h> |
| |
| #define CRD_NAME "Generic CS4231" |
| #define DEV_NAME "cs4231" |
| |
| MODULE_DESCRIPTION(CRD_NAME); |
| MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
| MODULE_LICENSE("GPL"); |
| |
| static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ |
| static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ |
| static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ |
| static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ |
| static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ |
| static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ |
| static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ |
| |
| module_param_array(index, int, NULL, 0444); |
| MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); |
| module_param_array(id, charp, NULL, 0444); |
| MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); |
| module_param_array(enable, bool, NULL, 0444); |
| MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); |
| module_param_hw_array(port, long, ioport, NULL, 0444); |
| MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); |
| module_param_hw_array(mpu_port, long, ioport, NULL, 0444); |
| MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver."); |
| module_param_hw_array(irq, int, irq, NULL, 0444); |
| MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); |
| module_param_hw_array(mpu_irq, int, irq, NULL, 0444); |
| MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver."); |
| module_param_hw_array(dma1, int, dma, NULL, 0444); |
| MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); |
| module_param_hw_array(dma2, int, dma, NULL, 0444); |
| MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); |
| |
| static int snd_cs4231_match(struct device *dev, unsigned int n) |
| { |
| if (!enable[n]) |
| return 0; |
| |
| if (port[n] == SNDRV_AUTO_PORT) { |
| dev_err(dev, "please specify port\n"); |
| return 0; |
| } |
| if (irq[n] == SNDRV_AUTO_IRQ) { |
| dev_err(dev, "please specify irq\n"); |
| return 0; |
| } |
| if (dma1[n] == SNDRV_AUTO_DMA) { |
| dev_err(dev, "please specify dma1\n"); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int snd_cs4231_probe(struct device *dev, unsigned int n) |
| { |
| struct snd_card *card; |
| struct snd_wss *chip; |
| int error; |
| |
| error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); |
| if (error < 0) |
| return error; |
| |
| error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n], |
| WSS_HW_DETECT, 0, &chip); |
| if (error < 0) |
| goto out; |
| |
| card->private_data = chip; |
| |
| error = snd_wss_pcm(chip, 0); |
| if (error < 0) |
| goto out; |
| |
| strscpy(card->driver, "CS4231", sizeof(card->driver)); |
| strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname)); |
| |
| if (dma2[n] < 0) |
| snprintf(card->longname, sizeof(card->longname), |
| "%s at 0x%lx, irq %d, dma %d", |
| chip->pcm->name, chip->port, irq[n], dma1[n]); |
| else |
| snprintf(card->longname, sizeof(card->longname), |
| "%s at 0x%lx, irq %d, dma %d&%d", |
| chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]); |
| |
| error = snd_wss_mixer(chip); |
| if (error < 0) |
| goto out; |
| |
| error = snd_wss_timer(chip, 0); |
| if (error < 0) |
| goto out; |
| |
| if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) { |
| if (mpu_irq[n] == SNDRV_AUTO_IRQ) |
| mpu_irq[n] = -1; |
| if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, |
| mpu_port[n], 0, mpu_irq[n], |
| NULL) < 0) |
| dev_warn(dev, "MPU401 not detected\n"); |
| } |
| |
| error = snd_card_register(card); |
| if (error < 0) |
| goto out; |
| |
| dev_set_drvdata(dev, card); |
| return 0; |
| |
| out: snd_card_free(card); |
| return error; |
| } |
| |
| static void snd_cs4231_remove(struct device *dev, unsigned int n) |
| { |
| snd_card_free(dev_get_drvdata(dev)); |
| } |
| |
| #ifdef CONFIG_PM |
| static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state) |
| { |
| struct snd_card *card = dev_get_drvdata(dev); |
| struct snd_wss *chip = card->private_data; |
| |
| snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
| chip->suspend(chip); |
| return 0; |
| } |
| |
| static int snd_cs4231_resume(struct device *dev, unsigned int n) |
| { |
| struct snd_card *card = dev_get_drvdata(dev); |
| struct snd_wss *chip = card->private_data; |
| |
| chip->resume(chip); |
| snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
| return 0; |
| } |
| #endif |
| |
| static struct isa_driver snd_cs4231_driver = { |
| .match = snd_cs4231_match, |
| .probe = snd_cs4231_probe, |
| .remove = snd_cs4231_remove, |
| #ifdef CONFIG_PM |
| .suspend = snd_cs4231_suspend, |
| .resume = snd_cs4231_resume, |
| #endif |
| .driver = { |
| .name = DEV_NAME |
| } |
| }; |
| |
| module_isa_driver(snd_cs4231_driver, SNDRV_CARDS); |