1/* 2 * Generic driver for CS4231 chips 3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz> 4 * Originally the CS4232/CS4232A driver, modified for use on CS4231 by 5 * Tugrul Galatali <galatalt@stuy.edu> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23#include <sound/driver.h> 24#include <linux/init.h> 25#include <linux/err.h> 26#include <linux/isa.h> 27#include <linux/time.h> 28#include <linux/wait.h> 29#include <linux/moduleparam.h> 30#include <sound/core.h> 31#include <sound/cs4231.h> 32#include <sound/mpu401.h> 33#include <sound/initval.h> 34 35#define CRD_NAME "Generic CS4231" 36#define DEV_NAME "cs4231" 37 38MODULE_DESCRIPTION(CRD_NAME); 39MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 40MODULE_LICENSE("GPL"); 41MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); 42 43static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 45static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 46static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 47static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 48static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 49static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ 50static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 51static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 52 53module_param_array(index, int, NULL, 0444); 54MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); 55module_param_array(id, charp, NULL, 0444); 56MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); 57module_param_array(enable, bool, NULL, 0444); 58MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); 59module_param_array(port, long, NULL, 0444); 60MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); 61module_param_array(mpu_port, long, NULL, 0444); 62MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver."); 63module_param_array(irq, int, NULL, 0444); 64MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 65module_param_array(mpu_irq, int, NULL, 0444); 66MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver."); 67module_param_array(dma1, int, NULL, 0444); 68MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 69module_param_array(dma2, int, NULL, 0444); 70MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); 71 72static int __devinit snd_cs4231_match(struct device *dev, unsigned int n) 73{ 74 if (!enable[n]) 75 return 0; 76 77 if (port[n] == SNDRV_AUTO_PORT) { 78 snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id); 79 return 0; 80 } 81 if (irq[n] == SNDRV_AUTO_IRQ) { 82 snd_printk(KERN_ERR "%s: please specify irq\n", dev->bus_id); 83 return 0; 84 } 85 if (dma1[n] == SNDRV_AUTO_DMA) { 86 snd_printk(KERN_ERR "%s: please specify dma1\n", dev->bus_id); 87 return 0; 88 } 89 return 1; 90} 91 92static int __devinit snd_cs4231_probe(struct device *dev, unsigned int n) 93{ 94 struct snd_card *card; 95 struct snd_cs4231 *chip; 96 struct snd_pcm *pcm; 97 int error; 98 99 card = snd_card_new(index[n], id[n], THIS_MODULE, 0); 100 if (!card) 101 return -EINVAL; 102 103 error = snd_cs4231_create(card, port[n], -1, irq[n], dma1[n], dma2[n], 104 CS4231_HW_DETECT, 0, &chip); 105 if (error < 0) 106 goto out; 107 108 card->private_data = chip; 109 110 error = snd_cs4231_pcm(chip, 0, &pcm); 111 if (error < 0) 112 goto out; 113 114 strcpy(card->driver, "CS4231"); 115 strcpy(card->shortname, pcm->name); 116 117 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 118 pcm->name, chip->port, irq[n], dma1[n]); 119 if (dma2[n] >= 0) 120 sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]); 121 122 error = snd_cs4231_mixer(chip); 123 if (error < 0) 124 goto out; 125 126 error = snd_cs4231_timer(chip, 0, NULL); 127 if (error < 0) 128 goto out; 129 130 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) { 131 if (mpu_irq[n] == SNDRV_AUTO_IRQ) 132 mpu_irq[n] = -1; 133 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, 134 mpu_port[n], 0, mpu_irq[n], 135 mpu_irq[n] >= 0 ? IRQF_DISABLED : 0, 136 NULL) < 0) 137 printk(KERN_WARNING "%s: MPU401 not detected\n", dev->bus_id); 138 } 139 140 snd_card_set_dev(card, dev); 141 142 error = snd_card_register(card); 143 if (error < 0) 144 goto out; 145 146 dev_set_drvdata(dev, card); 147 return 0; 148 149out: snd_card_free(card); 150 return error; 151} 152 153static int __devexit snd_cs4231_remove(struct device *dev, unsigned int n) 154{ 155 snd_card_free(dev_get_drvdata(dev)); 156 dev_set_drvdata(dev, NULL); 157 return 0; 158} 159 160#ifdef CONFIG_PM 161static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state) 162{ 163 struct snd_card *card = dev_get_drvdata(dev); 164 struct snd_cs4231 *chip = card->private_data; 165 166 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 167 chip->suspend(chip); 168 return 0; 169} 170 171static int snd_cs4231_resume(struct device *dev, unsigned int n) 172{ 173 struct snd_card *card = dev_get_drvdata(dev); 174 struct snd_cs4231 *chip = card->private_data; 175 176 chip->resume(chip); 177 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 178 return 0; 179} 180#endif 181 182static struct isa_driver snd_cs4231_driver = { 183 .match = snd_cs4231_match, 184 .probe = snd_cs4231_probe, 185 .remove = __devexit_p(snd_cs4231_remove), 186#ifdef CONFIG_PM 187 .suspend = snd_cs4231_suspend, 188 .resume = snd_cs4231_resume, 189#endif 190 .driver = { 191 .name = DEV_NAME 192 } 193}; 194 195static int __init alsa_card_cs4231_init(void) 196{ 197 return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS); 198} 199 200static void __exit alsa_card_cs4231_exit(void) 201{ 202 isa_unregister_driver(&snd_cs4231_driver); 203} 204 205module_init(alsa_card_cs4231_init); 206module_exit(alsa_card_cs4231_exit); 207