1 /* 2 * Driver for generic ESS AudioDrive ESx688 soundcards 3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz> 4 * 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 #include <sound/driver.h> 23 #include <linux/init.h> 24 #include <linux/err.h> 25 #include <linux/platform_device.h> 26 #include <linux/time.h> 27 #include <linux/wait.h> 28 #include <linux/moduleparam.h> 29 #include <asm/dma.h> 30 #include <sound/core.h> 31 #include <sound/es1688.h> 32 #include <sound/mpu401.h> 33 #include <sound/opl3.h> 34 #define SNDRV_LEGACY_FIND_FREE_IRQ 35 #define SNDRV_LEGACY_FIND_FREE_DMA 36 #include <sound/initval.h> 37 38 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 39 MODULE_DESCRIPTION("ESS ESx688 AudioDrive"); 40 MODULE_LICENSE("GPL"); 41 MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100}," 42 "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102}," 43 "{ESS,ES688 AudioDrive,pnp:ESS6881}," 44 "{ESS,ES1688 AudioDrive,pnp:ESS1681}}"); 45 46 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 47 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 48 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 49 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ 50 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; 51 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ 52 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ 53 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */ 54 55 module_param_array(index, int, NULL, 0444); 56 MODULE_PARM_DESC(index, "Index value for ESx688 soundcard."); 57 module_param_array(id, charp, NULL, 0444); 58 MODULE_PARM_DESC(id, "ID string for ESx688 soundcard."); 59 module_param_array(enable, bool, NULL, 0444); 60 MODULE_PARM_DESC(enable, "Enable ESx688 soundcard."); 61 module_param_array(port, long, NULL, 0444); 62 MODULE_PARM_DESC(port, "Port # for ESx688 driver."); 63 module_param_array(mpu_port, long, NULL, 0444); 64 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ESx688 driver."); 65 module_param_array(irq, int, NULL, 0444); 66 MODULE_PARM_DESC(irq, "IRQ # for ESx688 driver."); 67 module_param_array(mpu_irq, int, NULL, 0444); 68 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for ESx688 driver."); 69 module_param_array(dma8, int, NULL, 0444); 70 MODULE_PARM_DESC(dma8, "8-bit DMA # for ESx688 driver."); 71 72 static struct platform_device *devices[SNDRV_CARDS]; 73 74 #define PFX "es1688: " 75 76 static int __init snd_es1688_probe(struct platform_device *pdev) 77 { 78 int dev = pdev->id; 79 static int possible_irqs[] = {5, 9, 10, 7, -1}; 80 static int possible_dmas[] = {1, 3, 0, -1}; 81 int xirq, xdma, xmpu_irq; 82 struct snd_card *card; 83 struct snd_es1688 *chip; 84 struct snd_opl3 *opl3; 85 struct snd_pcm *pcm; 86 int err; 87 88 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 89 if (card == NULL) 90 return -ENOMEM; 91 92 xirq = irq[dev]; 93 if (xirq == SNDRV_AUTO_IRQ) { 94 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 95 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); 96 err = -EBUSY; 97 goto _err; 98 } 99 } 100 xmpu_irq = mpu_irq[dev]; 101 xdma = dma8[dev]; 102 if (xdma == SNDRV_AUTO_DMA) { 103 if ((xdma = snd_legacy_find_free_dma(possible_dmas)) < 0) { 104 snd_printk(KERN_ERR PFX "unable to find a free DMA\n"); 105 err = -EBUSY; 106 goto _err; 107 } 108 } 109 110 if (port[dev] != SNDRV_AUTO_PORT) { 111 if ((err = snd_es1688_create(card, port[dev], mpu_port[dev], 112 xirq, xmpu_irq, xdma, 113 ES1688_HW_AUTO, &chip)) < 0) 114 goto _err; 115 } else { 116 /* auto-probe legacy ports */ 117 static unsigned long possible_ports[] = { 118 0x220, 0x240, 0x260, 119 }; 120 int i; 121 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 122 err = snd_es1688_create(card, possible_ports[i], 123 mpu_port[dev], 124 xirq, xmpu_irq, xdma, 125 ES1688_HW_AUTO, &chip); 126 if (err >= 0) { 127 port[dev] = possible_ports[i]; 128 break; 129 } 130 } 131 if (i >= ARRAY_SIZE(possible_ports)) 132 goto _err; 133 } 134 135 if ((err = snd_es1688_pcm(chip, 0, &pcm)) < 0) 136 goto _err; 137 138 if ((err = snd_es1688_mixer(chip)) < 0) 139 goto _err; 140 141 strcpy(card->driver, "ES1688"); 142 strcpy(card->shortname, pcm->name); 143 sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name, chip->port, xirq, xdma); 144 145 if ((snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_OPL3, 0, &opl3)) < 0) { 146 printk(KERN_WARNING PFX "opl3 not detected at 0x%lx\n", chip->port); 147 } else { 148 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) 149 goto _err; 150 } 151 152 if (xmpu_irq >= 0 && xmpu_irq != SNDRV_AUTO_IRQ && chip->mpu_port > 0) { 153 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688, 154 chip->mpu_port, 0, 155 xmpu_irq, 156 SA_INTERRUPT, 157 NULL)) < 0) 158 goto _err; 159 } 160 161 snd_card_set_dev(card, &pdev->dev); 162 163 if ((err = snd_card_register(card)) < 0) 164 goto _err; 165 166 platform_set_drvdata(pdev, card); 167 return 0; 168 169 _err: 170 snd_card_free(card); 171 return err; 172 } 173 174 static int snd_es1688_remove(struct platform_device *devptr) 175 { 176 snd_card_free(platform_get_drvdata(devptr)); 177 platform_set_drvdata(devptr, NULL); 178 return 0; 179 } 180 181 #define ES1688_DRIVER "snd_es1688" 182 183 static struct platform_driver snd_es1688_driver = { 184 .probe = snd_es1688_probe, 185 .remove = snd_es1688_remove, 186 /* FIXME: suspend/resume */ 187 .driver = { 188 .name = ES1688_DRIVER 189 }, 190 }; 191 192 static void __init_or_module snd_es1688_unregister_all(void) 193 { 194 int i; 195 196 for (i = 0; i < ARRAY_SIZE(devices); ++i) 197 platform_device_unregister(devices[i]); 198 platform_driver_unregister(&snd_es1688_driver); 199 } 200 201 static int __init alsa_card_es1688_init(void) 202 { 203 int i, cards, err; 204 205 err = platform_driver_register(&snd_es1688_driver); 206 if (err < 0) 207 return err; 208 209 cards = 0; 210 for (i = 0; i < SNDRV_CARDS && enable[i]; i++) { 211 struct platform_device *device; 212 device = platform_device_register_simple(ES1688_DRIVER, 213 i, NULL, 0); 214 if (IS_ERR(device)) { 215 err = PTR_ERR(device); 216 goto errout; 217 } 218 devices[i] = device; 219 cards++; 220 } 221 if (!cards) { 222 #ifdef MODULE 223 printk(KERN_ERR "ESS AudioDrive ES1688 soundcard not found or device busy\n"); 224 #endif 225 err = -ENODEV; 226 goto errout; 227 } 228 return 0; 229 230 errout: 231 snd_es1688_unregister_all(); 232 return err; 233 } 234 235 static void __exit alsa_card_es1688_exit(void) 236 { 237 snd_es1688_unregister_all(); 238 } 239 240 module_init(alsa_card_es1688_init) 241 module_exit(alsa_card_es1688_exit) 242