2 * Driver for Aztech Sound Galaxy cards
3 * Copyright (c) by Christopher Butler <chrisb@sandy.force9.co.uk.
5 * I don't have documentation for this card, I based this driver on the
6 * driver for OSS/Free included in the kernel source (drivers/sound/sgalaxy.c)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <sound/driver.h>
26 #include <linux/init.h>
27 #include <linux/delay.h>
28 #include <linux/time.h>
29 #include <linux/irq.h>
30 #include <linux/moduleparam.h>
31 #include <sound/core.h>
33 #include <sound/ad1848.h>
34 #include <sound/control.h>
35 #define SNDRV_LEGACY_FIND_FREE_IRQ
36 #define SNDRV_LEGACY_FIND_FREE_DMA
37 #include <sound/initval.h>
39 MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
40 MODULE_DESCRIPTION("Aztech Sound Galaxy");
41 MODULE_LICENSE("GPL");
42 MODULE_CLASSES("{sound}");
43 MODULE_DEVICES("{{Aztech Systems,Sound Galaxy}}");
45 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
46 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
47 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
48 static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */
49 static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */
50 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */
51 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
54 module_param_array(index, int, boot_devs, 0444);
55 MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
56 MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
57 module_param_array(id, charp, boot_devs, 0444);
58 MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
59 MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
60 module_param_array(sbport, long, boot_devs, 0444);
61 MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
62 MODULE_PARM_SYNTAX(sbport, SNDRV_ENABLED ",allows:{{0x220},{0x240}},dialog:list");
63 module_param_array(wssport, long, boot_devs, 0444);
64 MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
65 MODULE_PARM_SYNTAX(wssport, SNDRV_ENABLED ",allows:{{0x530},{0xe80},{0xf40},{0x604}},dialog:list");
66 module_param_array(irq, int, boot_devs, 0444);
67 MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
68 MODULE_PARM_SYNTAX(irq, SNDRV_ENABLED ",allows:{{7},{9},{10},{11}},dialog:list");
69 module_param_array(dma1, int, boot_devs, 0444);
70 MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
71 MODULE_PARM_SYNTAX(dma1, SNDRV_DMA8_DESC);
73 #define SGALAXY_AUXC_LEFT 18
74 #define SGALAXY_AUXC_RIGHT 19
76 static snd_card_t *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
82 #define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
84 /* from lowlevel/sb/sb.c - to avoid having to allocate a sb_t for the */
85 /* short time we actually need it.. */
87 static int snd_sgalaxy_sbdsp_reset(unsigned long port)
91 outb(1, SBP1(port, RESET));
93 outb(0, SBP1(port, RESET));
95 for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++);
96 if (inb(SBP1(port, READ)) != 0xaa) {
97 snd_printd("sb_reset: failed at 0x%lx!!!\n", port);
103 static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char val)
107 for (i = 10000; i; i--)
108 if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
109 outb(val, SBP1(port, COMMAND));
116 static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
121 static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
123 static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1,
124 0x10, 0x18, 0x20, -1, -1, -1, -1};
125 static int dma_bits[] = {1, 2, 0, 3};
128 if ((tmp = inb(port + 3)) == 0xff)
130 snd_printdd("I/O address dead (0x%lx)\n", port);
134 snd_printdd("WSS signature = 0x%x\n", tmp);
137 if ((tmp & 0x3f) != 0x04 &&
138 (tmp & 0x3f) != 0x0f &&
139 (tmp & 0x3f) != 0x00) {
140 snd_printdd("No WSS signature detected on port 0x%lx\n",
146 snd_printdd("sgalaxy - setting up IRQ/DMA for WSS\n");
149 /* initialize IRQ for WSS codec */
150 tmp = interrupt_bits[irq % 16];
154 if (request_irq(irq, snd_sgalaxy_dummy_interrupt, SA_INTERRUPT, "sgalaxy", NULL)) {
155 snd_printk(KERN_ERR "sgalaxy: can't grab irq %d\n", irq);
159 outb(tmp | 0x40, port);
160 tmp1 = dma_bits[dma % 4];
161 outb(tmp | tmp1, port);
168 static int __init snd_sgalaxy_detect(int dev, int irq, int dma)
171 snd_printdd("sgalaxy - switching to WSS mode\n");
174 /* switch to WSS mode */
175 snd_sgalaxy_sbdsp_reset(sbport[dev]);
177 snd_sgalaxy_sbdsp_command(sbport[dev], 9);
178 snd_sgalaxy_sbdsp_command(sbport[dev], 0);
181 return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
184 static struct ad1848_mix_elem snd_sgalaxy_controls[] = {
185 AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
186 AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
189 static int __init snd_sgalaxy_mixer(ad1848_t *chip)
191 snd_card_t *card = chip->card;
192 snd_ctl_elem_id_t id1, id2;
196 memset(&id1, 0, sizeof(id1));
197 memset(&id2, 0, sizeof(id2));
198 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
199 /* reassign AUX0 to LINE */
200 strcpy(id1.name, "Aux Playback Switch");
201 strcpy(id2.name, "Line Playback Switch");
202 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
204 strcpy(id1.name, "Aux Playback Volume");
205 strcpy(id2.name, "Line Playback Volume");
206 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
208 /* reassign AUX1 to FM */
209 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
210 strcpy(id2.name, "FM Playback Switch");
211 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
213 strcpy(id1.name, "Aux Playback Volume");
214 strcpy(id2.name, "FM Playback Volume");
215 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
217 /* build AUX2 input */
218 for (idx = 0; idx < ARRAY_SIZE(snd_sgalaxy_controls); idx++) {
219 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_sgalaxy_controls[idx])) < 0)
225 static int __init snd_sgalaxy_probe(int dev)
227 static int possible_irqs[] = {7, 9, 10, 11, -1};
228 static int possible_dmas[] = {1, 3, 0, -1};
229 int err, xirq, xdma1;
233 if (sbport[dev] == SNDRV_AUTO_PORT) {
234 snd_printk("specify SB port\n");
237 if (wssport[dev] == SNDRV_AUTO_PORT) {
238 snd_printk("specify WSS port\n");
241 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
246 if (xirq == SNDRV_AUTO_IRQ) {
247 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
249 snd_printk("unable to find a free IRQ\n");
254 if (xdma1 == SNDRV_AUTO_DMA) {
255 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
257 snd_printk("unable to find a free DMA\n");
262 if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0) {
267 if ((err = snd_ad1848_create(card, wssport[dev] + 4,
269 AD1848_HW_DETECT, &chip)) < 0) {
274 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
275 snd_printdd("sgalaxy - error creating new ad1848 PCM device\n");
279 if ((err = snd_ad1848_mixer(chip)) < 0) {
280 snd_printdd("sgalaxy - error creating new ad1848 mixer\n");
284 if (snd_sgalaxy_mixer(chip) < 0) {
285 snd_printdd("sgalaxy - the mixer rewrite failed\n");
290 strcpy(card->driver, "Sound Galaxy");
291 strcpy(card->shortname, "Sound Galaxy");
292 sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
293 wssport[dev], xirq, xdma1);
295 if ((err = snd_card_register(card)) < 0) {
299 snd_sgalaxy_cards[dev] = card;
303 static int __init alsa_card_sgalaxy_init(void)
307 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
308 if (snd_sgalaxy_probe(dev) >= 0)
313 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
321 static void __exit alsa_card_sgalaxy_exit(void)
325 for (idx = 0; idx < SNDRV_CARDS; idx++)
326 snd_card_free(snd_sgalaxy_cards[idx]);
329 module_init(alsa_card_sgalaxy_init)
330 module_exit(alsa_card_sgalaxy_exit)