1 /* 2 * Generic driver for CS4231 chips 3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h> 24 #include <linux/err.h> 25 #include <linux/isa.h> 26 #include <linux/time.h> 27 #include <linux/wait.h> 28 #include <linux/module.h> 29 #include <sound/core.h> 30 #include <sound/wss.h> 31 #include <sound/mpu401.h> 32 #include <sound/initval.h> 33 34 #define CRD_NAME "Generic CS4231" 35 #define DEV_NAME "cs4231" 36 37 MODULE_DESCRIPTION(CRD_NAME); 38 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 39 MODULE_LICENSE("GPL"); 40 MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); 41 42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 44 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 45 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 46 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 48 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ 49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 50 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 51 52 module_param_array(index, int, NULL, 0444); 53 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); 54 module_param_array(id, charp, NULL, 0444); 55 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); 56 module_param_array(enable, bool, NULL, 0444); 57 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); 58 module_param_array(port, long, NULL, 0444); 59 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); 60 module_param_array(mpu_port, long, NULL, 0444); 61 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver."); 62 module_param_array(irq, int, NULL, 0444); 63 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); 64 module_param_array(mpu_irq, int, NULL, 0444); 65 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver."); 66 module_param_array(dma1, int, NULL, 0444); 67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); 68 module_param_array(dma2, int, NULL, 0444); 69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); 70 71 static int snd_cs4231_match(struct device *dev, unsigned int n) 72 { 73 if (!enable[n]) 74 return 0; 75 76 if (port[n] == SNDRV_AUTO_PORT) { 77 dev_err(dev, "please specify port\n"); 78 return 0; 79 } 80 if (irq[n] == SNDRV_AUTO_IRQ) { 81 dev_err(dev, "please specify irq\n"); 82 return 0; 83 } 84 if (dma1[n] == SNDRV_AUTO_DMA) { 85 dev_err(dev, "please specify dma1\n"); 86 return 0; 87 } 88 return 1; 89 } 90 91 static int snd_cs4231_probe(struct device *dev, unsigned int n) 92 { 93 struct snd_card *card; 94 struct snd_wss *chip; 95 int error; 96 97 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); 98 if (error < 0) 99 return error; 100 101 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n], 102 WSS_HW_DETECT, 0, &chip); 103 if (error < 0) 104 goto out; 105 106 card->private_data = chip; 107 108 error = snd_wss_pcm(chip, 0); 109 if (error < 0) 110 goto out; 111 112 strcpy(card->driver, "CS4231"); 113 strcpy(card->shortname, chip->pcm->name); 114 115 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", 116 chip->pcm->name, chip->port, irq[n], dma1[n]); 117 if (dma2[n] >= 0) 118 sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]); 119 120 error = snd_wss_mixer(chip); 121 if (error < 0) 122 goto out; 123 124 error = snd_wss_timer(chip, 0); 125 if (error < 0) 126 goto out; 127 128 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) { 129 if (mpu_irq[n] == SNDRV_AUTO_IRQ) 130 mpu_irq[n] = -1; 131 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, 132 mpu_port[n], 0, mpu_irq[n], 133 NULL) < 0) 134 dev_warn(dev, "MPU401 not detected\n"); 135 } 136 137 error = snd_card_register(card); 138 if (error < 0) 139 goto out; 140 141 dev_set_drvdata(dev, card); 142 return 0; 143 144 out: snd_card_free(card); 145 return error; 146 } 147 148 static int snd_cs4231_remove(struct device *dev, unsigned int n) 149 { 150 snd_card_free(dev_get_drvdata(dev)); 151 return 0; 152 } 153 154 #ifdef CONFIG_PM 155 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state) 156 { 157 struct snd_card *card = dev_get_drvdata(dev); 158 struct snd_wss *chip = card->private_data; 159 160 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 161 chip->suspend(chip); 162 return 0; 163 } 164 165 static int snd_cs4231_resume(struct device *dev, unsigned int n) 166 { 167 struct snd_card *card = dev_get_drvdata(dev); 168 struct snd_wss *chip = card->private_data; 169 170 chip->resume(chip); 171 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 172 return 0; 173 } 174 #endif 175 176 static struct isa_driver snd_cs4231_driver = { 177 .match = snd_cs4231_match, 178 .probe = snd_cs4231_probe, 179 .remove = snd_cs4231_remove, 180 #ifdef CONFIG_PM 181 .suspend = snd_cs4231_suspend, 182 .resume = snd_cs4231_resume, 183 #endif 184 .driver = { 185 .name = DEV_NAME 186 } 187 }; 188 189 static int __init alsa_card_cs4231_init(void) 190 { 191 return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS); 192 } 193 194 static void __exit alsa_card_cs4231_exit(void) 195 { 196 isa_unregister_driver(&snd_cs4231_driver); 197 } 198 199 module_init(alsa_card_cs4231_init); 200 module_exit(alsa_card_cs4231_exit); 201