/* * Generic driver for CS4231 chips * Copyright (c) by Jaroslav Kysela * Originally the CS4232/CS4232A driver, modified for use on CS4231 by * Tugrul Galatali * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include #include #include MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Generic CS4231"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int 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 CS4231 soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for CS4231 soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable CS4231 soundcard."); module_param_array(port, long, NULL, 0444); MODULE_PARM_DESC(port, "Port # for CS4231 driver."); module_param_array(mpu_port, long, NULL, 0444); MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver."); module_param_array(irq, int, NULL, 0444); MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver."); module_param_array(mpu_irq, int, NULL, 0444); MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver."); module_param_array(dma1, int, NULL, 0444); MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver."); module_param_array(dma2, int, NULL, 0444); MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver."); static struct platform_device *devices[SNDRV_CARDS]; static int __init snd_cs4231_probe(struct platform_device *pdev) { int dev = pdev->id; struct snd_card *card; struct snd_pcm *pcm; struct snd_cs4231 *chip; int err; if (port[dev] == SNDRV_AUTO_PORT) { snd_printk(KERN_ERR "specify port\n"); return -EINVAL; } if (irq[dev] == SNDRV_AUTO_IRQ) { snd_printk(KERN_ERR "specify irq\n"); return -EINVAL; } if (dma1[dev] == SNDRV_AUTO_DMA) { snd_printk(KERN_ERR "specify dma1\n"); return -EINVAL; } card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; if ((err = snd_cs4231_create(card, port[dev], -1, irq[dev], dma1[dev], dma2[dev], CS4231_HW_DETECT, 0, &chip)) < 0) goto _err; card->private_data = chip; if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) goto _err; strcpy(card->driver, "CS4231"); strcpy(card->shortname, pcm->name); sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", pcm->name, chip->port, irq[dev], dma1[dev]); if (dma2[dev] >= 0) sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]); if ((err = snd_cs4231_mixer(chip)) < 0) goto _err; if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) goto _err; if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) { if (mpu_irq[dev] == SNDRV_AUTO_IRQ) mpu_irq[dev] = -1; if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, mpu_port[dev], 0, mpu_irq[dev], mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0, NULL) < 0) printk(KERN_WARNING "cs4231: MPU401 not detected\n"); } snd_card_set_dev(card, &pdev->dev); if ((err = snd_card_register(card)) < 0) goto _err; platform_set_drvdata(pdev, card); return 0; _err: snd_card_free(card); return err; } static int __devexit snd_cs4231_remove(struct platform_device *devptr) { snd_card_free(platform_get_drvdata(devptr)); platform_set_drvdata(devptr, NULL); return 0; } #ifdef CONFIG_PM static int snd_cs4231_suspend(struct platform_device *dev, pm_message_t state) { struct snd_card *card; struct snd_cs4231 *chip; card = platform_get_drvdata(dev); snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); chip = card->private_data; chip->suspend(chip); return 0; } static int snd_cs4231_resume(struct platform_device *dev) { struct snd_card *card; struct snd_cs4231 *chip; card = platform_get_drvdata(dev); chip = card->private_data; chip->resume(chip); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif #define SND_CS4231_DRIVER "snd_cs4231" static struct platform_driver snd_cs4231_driver = { .probe = snd_cs4231_probe, .remove = __devexit_p(snd_cs4231_remove), #ifdef CONFIG_PM .suspend = snd_cs4231_suspend, .resume = snd_cs4231_resume, #endif .driver = { .name = SND_CS4231_DRIVER }, }; static void __init_or_module snd_cs4231_unregister_all(void) { int i; for (i = 0; i < ARRAY_SIZE(devices); ++i) platform_device_unregister(devices[i]); platform_driver_unregister(&snd_cs4231_driver); } static int __init alsa_card_cs4231_init(void) { int i, cards, err; err = platform_driver_register(&snd_cs4231_driver); if (err < 0) return err; cards = 0; for (i = 0; i < SNDRV_CARDS; i++) { struct platform_device *device; if (! enable[i]) continue; device = platform_device_register_simple(SND_CS4231_DRIVER, i, NULL, 0); if (IS_ERR(device)) continue; if (!platform_get_drvdata(device)) { platform_device_unregister(device); continue; } devices[i] = device; cards++; } if (!cards) { #ifdef MODULE printk(KERN_ERR "CS4231 soundcard not found or device busy\n"); #endif snd_cs4231_unregister_all(); return -ENODEV; } return 0; } static void __exit alsa_card_cs4231_exit(void) { snd_cs4231_unregister_all(); } module_init(alsa_card_cs4231_init) module_exit(alsa_card_cs4231_exit)