| 1 | /*
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| 2 | * Generic driver for CS4231 chips
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| 3 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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| 4 | * Originally the CS4232/CS4232A driver, modified for use on CS4231 by
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| 5 | * Tugrul Galatali <galatalt@stuy.edu>
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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | #define SNDRV_MAIN_OBJECT_FILE
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| 24 | #include <sound/driver.h>
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| 25 | #include <sound/cs4231.h>
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| 26 | #include <sound/mpu401.h>
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| 27 | #define SNDRV_GET_ID
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| 28 | #include <sound/initval.h>
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| 29 |
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| 30 | #define chip_t cs4231_t
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| 31 |
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| 32 | EXPORT_NO_SYMBOLS;
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| 33 | MODULE_DESCRIPTION("Generic CS4231");
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| 34 | MODULE_CLASSES("{sound}");
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| 35 | MODULE_DEVICES("{{Crystal Semiconductors,CS4231}}");
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| 36 |
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| 37 | static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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| 38 | static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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| 39 | static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
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| 40 | static long snd_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
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| 41 | static long snd_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
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| 42 | static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
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| 43 | static int snd_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */
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| 44 | static int snd_dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
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| 45 | static int snd_dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
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| 46 |
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| 47 | MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 48 | MODULE_PARM_DESC(snd_index, "Index value for CS4231 soundcard.");
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| 49 | MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC);
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| 50 | MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
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| 51 | MODULE_PARM_DESC(snd_id, "ID string for CS4231 soundcard.");
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| 52 | MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC);
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| 53 | MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 54 | MODULE_PARM_DESC(snd_enable, "Enable CS4231 soundcard.");
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| 55 | MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC);
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| 56 | MODULE_PARM(snd_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
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| 57 | MODULE_PARM_DESC(snd_port, "Port # for CS4231 driver.");
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| 58 | MODULE_PARM_SYNTAX(snd_port, SNDRV_PORT12_DESC);
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| 59 | MODULE_PARM(snd_mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
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| 60 | MODULE_PARM_DESC(snd_mpu_port, "MPU-401 port # for CS4231 driver.");
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| 61 | MODULE_PARM_SYNTAX(snd_mpu_port, SNDRV_PORT12_DESC);
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| 62 | MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 63 | MODULE_PARM_DESC(snd_irq, "IRQ # for CS4231 driver.");
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| 64 | MODULE_PARM_SYNTAX(snd_irq, SNDRV_IRQ_DESC);
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| 65 | MODULE_PARM(snd_mpu_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 66 | MODULE_PARM_DESC(snd_mpu_irq, "MPU-401 IRQ # for CS4231 driver.");
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| 67 | MODULE_PARM_SYNTAX(snd_mpu_irq, SNDRV_IRQ_DESC);
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| 68 | MODULE_PARM(snd_dma1, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 69 | MODULE_PARM_DESC(snd_dma1, "DMA1 # for CS4231 driver.");
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| 70 | MODULE_PARM_SYNTAX(snd_dma1, SNDRV_DMA_DESC);
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| 71 | MODULE_PARM(snd_dma2, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
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| 72 | MODULE_PARM_DESC(snd_dma2, "DMA2 # for CS4231 driver.");
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| 73 | MODULE_PARM_SYNTAX(snd_dma2, SNDRV_DMA_DESC);
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| 74 |
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| 75 | static snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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| 76 |
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| 77 |
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| 78 | static int __init snd_card_cs4231_probe(int dev)
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| 79 | {
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| 80 | snd_card_t *card;
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| 81 | struct snd_card_cs4231 *acard;
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| 82 | snd_pcm_t *pcm = NULL;
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| 83 | cs4231_t *chip;
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| 84 | int err;
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| 85 |
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| 86 | if (snd_port[dev] == SNDRV_AUTO_PORT) {
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| 87 | snd_printk("specify snd_port\n");
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| 88 | return -EINVAL;
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| 89 | }
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| 90 | if (snd_irq[dev] == SNDRV_AUTO_IRQ) {
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| 91 | snd_printk("specify snd_irq\n");
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| 92 | return -EINVAL;
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| 93 | }
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| 94 | if (snd_dma1[dev] == SNDRV_AUTO_DMA) {
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| 95 | snd_printk("specify snd_dma1\n");
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| 96 | return -EINVAL;
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| 97 | }
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| 98 | card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, 0);
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| 99 | if (card == NULL)
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| 100 | return -ENOMEM;
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| 101 | acard = (struct snd_card_cs4231 *)card->private_data;
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| 102 | if (snd_mpu_port[dev] < 0)
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| 103 | snd_mpu_port[dev] = SNDRV_AUTO_PORT;
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| 104 | if ((err = snd_cs4231_create(card, snd_port[dev], -1,
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| 105 | snd_irq[dev],
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| 106 | snd_dma1[dev],
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| 107 | snd_dma2[dev],
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| 108 | CS4231_HW_DETECT,
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| 109 | 0, &chip)) < 0) {
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| 110 | snd_card_free(card);
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| 111 | return err;
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| 112 | }
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| 113 |
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| 114 | if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
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| 115 | snd_card_free(card);
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| 116 | return err;
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| 117 | }
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| 118 | if ((err = snd_cs4231_mixer(chip)) < 0) {
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| 119 | snd_card_free(card);
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| 120 | return err;
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| 121 | }
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| 122 | if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) {
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| 123 | snd_card_free(card);
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| 124 | return err;
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| 125 | }
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| 126 |
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| 127 | if (snd_mpu_irq[dev] >= 0 && snd_mpu_irq[dev] != SNDRV_AUTO_IRQ) {
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| 128 | if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
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| 129 | snd_mpu_port[dev], 0,
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| 130 | snd_mpu_irq[dev], SA_INTERRUPT,
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| 131 | NULL) < 0)
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| 132 | snd_printk("MPU401 not detected\n");
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| 133 | }
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| 134 | strcpy(card->driver, "CS4231");
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| 135 | strcpy(card->shortname, pcm->name);
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| 136 | sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
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| 137 | pcm->name, chip->port, snd_irq[dev], snd_dma1[dev]);
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| 138 | if (snd_dma2[dev] >= 0)
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| 139 | sprintf(card->longname + strlen(card->longname), "&%d", snd_dma2[dev]);
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| 140 | if ((err = snd_card_register(card)) < 0) {
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| 141 | snd_card_free(card);
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| 142 | return err;
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| 143 | }
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| 144 | snd_cs4231_cards[dev] = card;
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| 145 | return 0;
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| 146 | }
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| 147 |
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| 148 | static int __init alsa_card_cs4231_init(void)
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| 149 | {
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| 150 | int dev, cards;
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| 151 |
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| 152 | for (dev = cards = 0; dev < SNDRV_CARDS && snd_enable[dev]; dev++) {
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| 153 | if (snd_card_cs4231_probe(dev) >= 0)
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| 154 | cards++;
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| 155 | }
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| 156 | if (!cards) {
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| 157 | #ifdef MODULE
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| 158 | snd_printk("CS4231 soundcard not found or device busy\n");
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| 159 | #endif
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| 160 | return -ENODEV;
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| 161 | }
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| 162 | return 0;
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| 163 | }
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| 164 |
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| 165 | static void __exit alsa_card_cs4231_exit(void)
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| 166 | {
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| 167 | int idx;
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| 168 |
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| 169 | for (idx = 0; idx < SNDRV_CARDS; idx++)
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| 170 | snd_card_free(snd_cs4231_cards[idx]);
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| 171 | }
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| 172 |
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| 173 | module_init(alsa_card_cs4231_init)
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| 174 | module_exit(alsa_card_cs4231_exit)
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| 175 |
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| 176 | #ifndef MODULE
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| 177 |
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| 178 | /* format is: snd-card-cs4231=snd_enable,snd_index,snd_id,
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| 179 | snd_port,snd_mpu_port,snd_irq,snd_mpu_irq,
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| 180 | snd_dma1,snd_dma2 */
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| 181 |
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| 182 | static int __init alsa_card_cs4231_setup(char *str)
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| 183 | {
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| 184 | static unsigned __initdata nr_dev = 0;
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| 185 | int __attribute__ ((__unused__)) pnp = INT_MAX;
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| 186 |
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| 187 | if (nr_dev >= SNDRV_CARDS)
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| 188 | return 0;
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| 189 | (void)(get_option(&str,&snd_enable[nr_dev]) == 2 &&
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| 190 | get_option(&str,&snd_index[nr_dev]) == 2 &&
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| 191 | get_id(&str,&snd_id[nr_dev]) == 2 &&
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| 192 | get_option(&str,&pnp) == 2 &&
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| 193 | get_option(&str,(int *)&snd_port[nr_dev]) == 2 &&
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| 194 | get_option(&str,(int *)&snd_mpu_port[nr_dev]) == 2 &&
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| 195 | get_option(&str,&snd_irq[nr_dev]) == 2 &&
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| 196 | get_option(&str,&snd_mpu_irq[nr_dev]) == 2 &&
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| 197 | get_option(&str,&snd_dma1[nr_dev]) == 2 &&
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| 198 | get_option(&str,&snd_dma2[nr_dev]) == 2);
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| 199 | nr_dev++;
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| 200 | return 1;
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| 201 | }
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| 202 |
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| 203 | __setup("snd-card-cs4231=", alsa_card_cs4231_setup);
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| 204 |
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| 205 | #endif /* ifndef MODULE */
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