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>
25 #include <linux/init.h>
26 #include <linux/err.h>
27 #include <linux/platform_device.h>
28 #include <linux/delay.h>
29 #include <linux/time.h>
30 #include <linux/interrupt.h>
31 #include <linux/moduleparam.h>
33 #include <sound/core.h>
35 #include <sound/ad1848.h>
36 #include <sound/control.h>
37 #define SNDRV_LEGACY_FIND_FREE_IRQ
38 #define SNDRV_LEGACY_FIND_FREE_DMA
39 #include <sound/initval.h>
41 MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
42 MODULE_DESCRIPTION("Aztech Sound Galaxy");
43 MODULE_LICENSE("GPL");
44 MODULE_SUPPORTED_DEVICE("{{Aztech Systems,Sound Galaxy}}");
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 sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */
50 static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */
51 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */
52 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
54 module_param_array(index, int, NULL, 0444);
55 MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
56 module_param_array(id, charp, NULL, 0444);
57 MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
58 module_param_array(sbport, long, NULL, 0444);
59 MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
60 module_param_array(wssport, long, NULL, 0444);
61 MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
62 module_param_array(irq, int, NULL, 0444);
63 MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
64 module_param_array(dma1, int, NULL, 0444);
65 MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
67 static struct platform_device *devices[SNDRV_CARDS];
69 #define SGALAXY_AUXC_LEFT 18
70 #define SGALAXY_AUXC_RIGHT 19
72 #define PFX "sgalaxy: "
78 #define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
80 /* from lowlevel/sb/sb.c - to avoid having to allocate a struct snd_sb for the */
81 /* short time we actually need it.. */
83 static int snd_sgalaxy_sbdsp_reset(unsigned long port)
87 outb(1, SBP1(port, RESET));
89 outb(0, SBP1(port, RESET));
91 for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++);
92 if (inb(SBP1(port, READ)) != 0xaa) {
93 snd_printd("sb_reset: failed at 0x%lx!!!\n", port);
99 static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char val)
103 for (i = 10000; i; i--)
104 if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
105 outb(val, SBP1(port, COMMAND));
112 static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
117 static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
119 static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1,
120 0x10, 0x18, 0x20, -1, -1, -1, -1};
121 static int dma_bits[] = {1, 2, 0, 3};
124 if ((tmp = inb(port + 3)) == 0xff)
126 snd_printdd("I/O address dead (0x%lx)\n", port);
130 snd_printdd("WSS signature = 0x%x\n", tmp);
133 if ((tmp & 0x3f) != 0x04 &&
134 (tmp & 0x3f) != 0x0f &&
135 (tmp & 0x3f) != 0x00) {
136 snd_printdd("No WSS signature detected on port 0x%lx\n",
142 snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
145 /* initialize IRQ for WSS codec */
146 tmp = interrupt_bits[irq % 16];
150 if (request_irq(irq, snd_sgalaxy_dummy_interrupt, SA_INTERRUPT, "sgalaxy", NULL)) {
151 snd_printk(KERN_ERR "sgalaxy: can't grab irq %d\n", irq);
155 outb(tmp | 0x40, port);
156 tmp1 = dma_bits[dma % 4];
157 outb(tmp | tmp1, port);
164 static int __init snd_sgalaxy_detect(int dev, int irq, int dma)
167 snd_printdd(PFX "switching to WSS mode\n");
170 /* switch to WSS mode */
171 snd_sgalaxy_sbdsp_reset(sbport[dev]);
173 snd_sgalaxy_sbdsp_command(sbport[dev], 9);
174 snd_sgalaxy_sbdsp_command(sbport[dev], 0);
177 return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
180 static struct ad1848_mix_elem snd_sgalaxy_controls[] = {
181 AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
182 AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
185 static int __init snd_sgalaxy_mixer(struct snd_ad1848 *chip)
187 struct snd_card *card = chip->card;
188 struct snd_ctl_elem_id id1, id2;
192 memset(&id1, 0, sizeof(id1));
193 memset(&id2, 0, sizeof(id2));
194 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
195 /* reassign AUX0 to LINE */
196 strcpy(id1.name, "Aux Playback Switch");
197 strcpy(id2.name, "Line Playback Switch");
198 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
200 strcpy(id1.name, "Aux Playback Volume");
201 strcpy(id2.name, "Line Playback Volume");
202 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
204 /* reassign AUX1 to FM */
205 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
206 strcpy(id2.name, "FM Playback Switch");
207 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
209 strcpy(id1.name, "Aux Playback Volume");
210 strcpy(id2.name, "FM Playback Volume");
211 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
213 /* build AUX2 input */
214 for (idx = 0; idx < ARRAY_SIZE(snd_sgalaxy_controls); idx++) {
215 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_sgalaxy_controls[idx])) < 0)
221 static int __init snd_sgalaxy_probe(struct platform_device *devptr)
223 int dev = devptr->id;
224 static int possible_irqs[] = {7, 9, 10, 11, -1};
225 static int possible_dmas[] = {1, 3, 0, -1};
226 int err, xirq, xdma1;
227 struct snd_card *card;
228 struct snd_ad1848 *chip;
230 if (sbport[dev] == SNDRV_AUTO_PORT) {
231 snd_printk(KERN_ERR PFX "specify SB port\n");
234 if (wssport[dev] == SNDRV_AUTO_PORT) {
235 snd_printk(KERN_ERR PFX "specify WSS port\n");
238 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
243 if (xirq == SNDRV_AUTO_IRQ) {
244 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
245 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
251 if (xdma1 == SNDRV_AUTO_DMA) {
252 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
253 snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
259 if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
262 if ((err = snd_ad1848_create(card, wssport[dev] + 4,
264 AD1848_HW_DETECT, &chip)) < 0)
266 card->private_data = chip;
268 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
269 snd_printdd(PFX "error creating new ad1848 PCM device\n");
272 if ((err = snd_ad1848_mixer(chip)) < 0) {
273 snd_printdd(PFX "error creating new ad1848 mixer\n");
276 if ((err = snd_sgalaxy_mixer(chip)) < 0) {
277 snd_printdd(PFX "the mixer rewrite failed\n");
281 strcpy(card->driver, "Sound Galaxy");
282 strcpy(card->shortname, "Sound Galaxy");
283 sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
284 wssport[dev], xirq, xdma1);
286 snd_card_set_dev(card, &devptr->dev);
288 if ((err = snd_card_register(card)) < 0)
291 platform_set_drvdata(devptr, card);
299 static int __devexit snd_sgalaxy_remove(struct platform_device *devptr)
301 snd_card_free(platform_get_drvdata(devptr));
302 platform_set_drvdata(devptr, NULL);
307 static int snd_sgalaxy_suspend(struct platform_device *pdev, pm_message_t state)
309 struct snd_card *card = platform_get_drvdata(pdev);
310 struct snd_ad1848 *chip = card->private_data;
312 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
317 static int snd_sgalaxy_resume(struct platform_device *pdev)
319 struct snd_card *card = platform_get_drvdata(pdev);
320 struct snd_ad1848 *chip = card->private_data;
323 snd_ad1848_out(chip, SGALAXY_AUXC_LEFT, chip->image[SGALAXY_AUXC_LEFT]);
324 snd_ad1848_out(chip, SGALAXY_AUXC_RIGHT, chip->image[SGALAXY_AUXC_RIGHT]);
326 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
331 #define SND_SGALAXY_DRIVER "snd_sgalaxy"
333 static struct platform_driver snd_sgalaxy_driver = {
334 .probe = snd_sgalaxy_probe,
335 .remove = __devexit_p(snd_sgalaxy_remove),
337 .suspend = snd_sgalaxy_suspend,
338 .resume = snd_sgalaxy_resume,
341 .name = SND_SGALAXY_DRIVER
345 static void __init_or_module snd_sgalaxy_unregister_all(void)
349 for (i = 0; i < ARRAY_SIZE(devices); ++i)
350 platform_device_unregister(devices[i]);
351 platform_driver_unregister(&snd_sgalaxy_driver);
354 static int __init alsa_card_sgalaxy_init(void)
358 err = platform_driver_register(&snd_sgalaxy_driver);
363 for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
364 struct platform_device *device;
365 device = platform_device_register_simple(SND_SGALAXY_DRIVER,
367 if (IS_ERR(device)) {
368 err = PTR_ERR(device);
376 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
384 snd_sgalaxy_unregister_all();
388 static void __exit alsa_card_sgalaxy_exit(void)
390 snd_sgalaxy_unregister_all();
393 module_init(alsa_card_sgalaxy_init)
394 module_exit(alsa_card_sgalaxy_exit)