| /* |
| * Driver for Aztech Sound Galaxy cards |
| * Copyright (c) by Christopher Butler <chrisb@sandy.force9.co.uk. |
| * |
| * I don't have documentation for this card, I based this driver on the |
| * driver for OSS/Free included in the kernel source (drivers/sound/sgalaxy.c) |
| * |
| * 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 <sound/driver.h> |
| #include <asm/dma.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/time.h> |
| #include <sound/core.h> |
| #include <sound/sb.h> |
| #include <sound/ad1848.h> |
| #define SNDRV_LEGACY_FIND_FREE_IRQ |
| #define SNDRV_LEGACY_FIND_FREE_DMA |
| #define SNDRV_GET_ID |
| #include <sound/initval.h> |
| |
| EXPORT_NO_SYMBOLS; |
| |
| MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>"); |
| MODULE_DESCRIPTION("Aztech Sound Galaxy"); |
| MODULE_LICENSE("GPL"); |
| MODULE_CLASSES("{sound}"); |
| MODULE_DEVICES("{{Aztech Systems,Sound Galaxy}}"); |
| |
| static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ |
| static long snd_sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */ |
| static long snd_wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */ |
| static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */ |
| static int snd_dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */ |
| |
| MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_index, "Index value for Sound Galaxy soundcard."); |
| MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC); |
| MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); |
| MODULE_PARM_DESC(snd_id, "ID string for Sound Galaxy soundcard."); |
| MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC); |
| MODULE_PARM(snd_sbport, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); |
| MODULE_PARM_DESC(snd_sbport, "Port # for Sound Galaxy SB driver."); |
| MODULE_PARM_SYNTAX(snd_sbport, SNDRV_ENABLED ",allows:{{0x220},{0x240}},dialog:list"); |
| MODULE_PARM(snd_wssport, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); |
| MODULE_PARM_DESC(snd_wssport, "Port # for Sound Galaxy WSS driver."); |
| MODULE_PARM_SYNTAX(snd_wssport, SNDRV_ENABLED ",allows:{{0x530},{0xe80},{0xf40},{0x604}},dialog:list"); |
| MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_irq, "IRQ # for Sound Galaxy driver."); |
| MODULE_PARM_SYNTAX(snd_irq, SNDRV_ENABLED ",allows:{{7},{9},{10},{11}},dialog:list"); |
| MODULE_PARM(snd_dma1, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_dma1, "DMA1 # for Sound Galaxy driver."); |
| MODULE_PARM_SYNTAX(snd_dma1, SNDRV_DMA8_DESC); |
| |
| #define SGALAXY_AUXC_LEFT 18 |
| #define SGALAXY_AUXC_RIGHT 19 |
| |
| static snd_card_t *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
| |
| /* |
| |
| */ |
| |
| #define AD1848P1( port, x ) ( port + c_d_c_AD1848##x ) |
| |
| /* from lowlevel/sb/sb.c - to avoid having to allocate a sb_t for the */ |
| /* short time we actually need it.. */ |
| |
| static int snd_sgalaxy_sbdsp_reset(unsigned long port) |
| { |
| int i; |
| |
| outb(1, SBP1(port, RESET)); |
| udelay(10); |
| outb(0, SBP1(port, RESET)); |
| udelay(30); |
| for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++); |
| if (inb(SBP1(port, READ)) != 0xaa) { |
| snd_printd("sb_reset: failed at 0x%lx!!!\n", port); |
| return -ENODEV; |
| } |
| return 0; |
| } |
| |
| static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char val) |
| { |
| int i; |
| |
| for (i = 10000; i; i--) |
| if ((inb(SBP1(port, STATUS)) & 0x80) == 0) { |
| outb(val, SBP1(port, COMMAND)); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma) |
| { |
| static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1, |
| 0x10, 0x18, 0x20, -1, -1, -1, -1}; |
| static int dma_bits[] = {1, 2, 0, 3}; |
| int tmp, tmp1; |
| |
| unsigned int flags; |
| |
| if ((tmp = inb(port + 3)) == 0xff) |
| { |
| snd_printdd("I/O address dead (0x%lx)\n", port); |
| return 0; |
| } |
| #if 0 |
| snd_printdd("WSS signature = 0x%x\n", tmp); |
| #endif |
| |
| if ((tmp & 0x3f) != 0x04 && |
| (tmp & 0x3f) != 0x0f && |
| (tmp & 0x3f) != 0x00) { |
| snd_printdd("No WSS signature detected on port 0x%lx\n", |
| port + 3); |
| return 0; |
| } |
| |
| #if 0 |
| snd_printdd("sgalaxy - setting up IRQ/DMA for WSS\n"); |
| #endif |
| |
| save_flags(flags); |
| cli(); |
| |
| /* initialize IRQ for WSS codec */ |
| tmp = interrupt_bits[irq % 16]; |
| if (tmp < 0) { |
| restore_flags(flags); |
| return -EINVAL; |
| } |
| outb(tmp | 0x40, port); |
| tmp1 = dma_bits[dma % 4]; |
| outb(tmp | tmp1, port); |
| |
| restore_flags(flags); |
| return 0; |
| } |
| |
| static int __init snd_sgalaxy_detect(int dev, int irq, int dma) |
| { |
| #if 0 |
| snd_printdd("sgalaxy - switching to WSS mode\n"); |
| #endif |
| |
| /* switch to WSS mode */ |
| snd_sgalaxy_sbdsp_reset(snd_sbport[dev]); |
| |
| snd_sgalaxy_sbdsp_command(snd_sbport[dev], 9); |
| snd_sgalaxy_sbdsp_command(snd_sbport[dev], 0); |
| |
| udelay(400); |
| return snd_sgalaxy_setup_wss(snd_wssport[dev], irq, dma); |
| } |
| |
| #define SGALAXY_CONTROLS 2 |
| |
| static snd_kcontrol_new_t snd_sgalaxy_controls[2] = { |
| AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1), |
| AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0) |
| }; |
| |
| static int __init snd_sgalaxy_mixer(ad1848_t *chip) |
| { |
| snd_card_t *card = chip->card; |
| snd_ctl_elem_id_t id1, id2; |
| int idx, err; |
| |
| memset(&id1, 0, sizeof(id1)); |
| memset(&id2, 0, sizeof(id2)); |
| id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
| /* reassign AUX0 to LINE */ |
| strcpy(id1.name, "Aux Playback Switch"); |
| strcpy(id2.name, "Line Playback Switch"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| strcpy(id1.name, "Aux Playback Volume"); |
| strcpy(id2.name, "Line Playback Volume"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| /* reassign AUX1 to FM */ |
| strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; |
| strcpy(id2.name, "FM Playback Switch"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| strcpy(id1.name, "Aux Playback Volume"); |
| strcpy(id2.name, "FM Playback Volume"); |
| if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) |
| return err; |
| /* build AUX2 input */ |
| for (idx = 0; idx < SGALAXY_CONTROLS; idx++) { |
| if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_sgalaxy_controls[idx], chip))) < 0) |
| return err; |
| } |
| return 0; |
| } |
| |
| static int __init snd_sgalaxy_probe(int dev) |
| { |
| static int possible_irqs[] = {7, 9, 10, 11, -1}; |
| static int possible_dmas[] = {1, 3, 0, -1}; |
| int err, irq, dma1; |
| snd_card_t *card; |
| ad1848_t *chip; |
| |
| if (snd_sbport[dev] == SNDRV_AUTO_PORT) { |
| snd_printk("specify SB port\n"); |
| return -EINVAL; |
| } |
| if (snd_wssport[dev] == SNDRV_AUTO_PORT) { |
| snd_printk("specify WSS port\n"); |
| return -EINVAL; |
| } |
| card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, 0); |
| if (card == NULL) |
| return -ENOMEM; |
| |
| irq = snd_irq[dev]; |
| if (irq == SNDRV_AUTO_IRQ) { |
| if ((irq = snd_legacy_find_free_irq(possible_irqs)) < 0) { |
| snd_card_free(card); |
| snd_printk("unable to find a free IRQ\n"); |
| return -EBUSY; |
| } |
| } |
| dma1 = snd_dma1[dev]; |
| if (dma1 == SNDRV_AUTO_DMA) { |
| if ((dma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { |
| snd_card_free(card); |
| snd_printk("unable to find a free DMA\n"); |
| return -EBUSY; |
| } |
| } |
| |
| if ((err = snd_sgalaxy_detect(dev, irq, dma1)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| if ((err = snd_ad1848_create(card, snd_wssport[dev] + 4, |
| irq, dma1, |
| AD1848_HW_DETECT, &chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) { |
| snd_printdd("sgalaxy - error creating new ad1848 PCM device\n"); |
| snd_card_free(card); |
| return err; |
| } |
| if ((err = snd_ad1848_mixer(chip)) < 0) { |
| snd_printdd("sgalaxy - error creating new ad1848 mixer\n"); |
| snd_card_free(card); |
| return err; |
| } |
| if (snd_sgalaxy_mixer(chip) < 0) { |
| snd_printdd("sgalaxy - the mixer rewrite failed\n"); |
| snd_card_free(card); |
| return err; |
| } |
| |
| strcpy(card->driver, "Sound Galaxy"); |
| strcpy(card->shortname, "Sound Galaxy"); |
| sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d", |
| snd_wssport[dev], irq, dma1); |
| |
| if ((err = snd_card_register(card)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| snd_sgalaxy_cards[dev] = card; |
| return 0; |
| } |
| |
| static int __init alsa_card_sgalaxy_init(void) |
| { |
| int dev, cards; |
| |
| for (dev = cards = 0; dev < SNDRV_CARDS && snd_enable[dev]; dev++) { |
| if (snd_sgalaxy_probe(dev) >= 0) |
| cards++; |
| } |
| if (!cards) { |
| #ifdef MODULE |
| snd_printk("Sound Galaxy soundcard not found or device busy\n"); |
| #endif |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit alsa_card_sgalaxy_exit(void) |
| { |
| int idx; |
| |
| for (idx = 0; idx < SNDRV_CARDS; idx++) |
| snd_card_free(snd_sgalaxy_cards[idx]); |
| } |
| |
| module_init(alsa_card_sgalaxy_init) |
| module_exit(alsa_card_sgalaxy_exit) |
| |
| #ifndef MODULE |
| |
| /* format is: snd-sgalaxy=snd_enable,snd_index,snd_id, |
| snd_sbport,snd_wssport, |
| snd_irq,snd_dma1 */ |
| |
| static int __init alsa_card_sgalaxy_setup(char *str) |
| { |
| static unsigned __initdata nr_dev = 0; |
| |
| if (nr_dev >= SNDRV_CARDS) |
| return 0; |
| (void)(get_option(&str,&snd_enable[nr_dev]) == 2 && |
| get_option(&str,&snd_index[nr_dev]) == 2 && |
| get_id(&str,&snd_id[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_sbport[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_wssport[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_irq[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_dma1[nr_dev]) == 2); |
| nr_dev++; |
| return 1; |
| } |
| |
| __setup("snd-sgalaxy=", alsa_card_sgalaxy_setup); |
| |
| #endif /* ifndef MODULE */ |