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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Driver for Aztech Sound Galaxy cards
3 * Copyright (c) by Christopher Butler <chrisb@sandy.force9.co.uk.
4 *
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)
7 *
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.
12 *
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.
17 *
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
21 *
22 */
23
24#include <sound/driver.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include <linux/init.h>
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +010026#include <linux/err.h>
27#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include <linux/delay.h>
29#include <linux/time.h>
30#include <linux/interrupt.h>
31#include <linux/moduleparam.h>
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +010032#include <asm/dma.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <sound/core.h>
34#include <sound/sb.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>
40
41MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
42MODULE_DESCRIPTION("Aztech Sound Galaxy");
43MODULE_LICENSE("GPL");
44MODULE_SUPPORTED_DEVICE("{{Aztech Systems,Sound Galaxy}}");
45
46static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
47static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
48static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
49static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */
50static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */
51static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */
52static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
53
54module_param_array(index, int, NULL, 0444);
55MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
56module_param_array(id, charp, NULL, 0444);
57MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
58module_param_array(sbport, long, NULL, 0444);
59MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
60module_param_array(wssport, long, NULL, 0444);
61MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
62module_param_array(irq, int, NULL, 0444);
63MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
64module_param_array(dma1, int, NULL, 0444);
65MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
66
Clemens Ladischf7a92752005-12-07 09:13:42 +010067static struct platform_device *devices[SNDRV_CARDS];
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069#define SGALAXY_AUXC_LEFT 18
70#define SGALAXY_AUXC_RIGHT 19
71
Takashi Iwai43bcd972005-09-05 17:19:20 +020072#define PFX "sgalaxy: "
73
Linus Torvalds1da177e2005-04-16 15:20:36 -070074/*
75
76 */
77
78#define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
79
Takashi Iwai11ff5c62005-11-17 14:42:36 +010080/* from lowlevel/sb/sb.c - to avoid having to allocate a struct snd_sb for the */
Linus Torvalds1da177e2005-04-16 15:20:36 -070081/* short time we actually need it.. */
82
83static int snd_sgalaxy_sbdsp_reset(unsigned long port)
84{
85 int i;
86
87 outb(1, SBP1(port, RESET));
88 udelay(10);
89 outb(0, SBP1(port, RESET));
90 udelay(30);
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);
94 return -ENODEV;
95 }
96 return 0;
97}
98
99static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char val)
100{
101 int i;
102
103 for (i = 10000; i; i--)
104 if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
105 outb(val, SBP1(port, COMMAND));
106 return 1;
107 }
108
109 return 0;
110}
111
112static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
113{
114 return IRQ_NONE;
115}
116
117static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
118{
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};
122 int tmp, tmp1;
123
124 if ((tmp = inb(port + 3)) == 0xff)
125 {
126 snd_printdd("I/O address dead (0x%lx)\n", port);
127 return 0;
128 }
129#if 0
130 snd_printdd("WSS signature = 0x%x\n", tmp);
131#endif
132
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",
137 port + 3);
138 return 0;
139 }
140
141#if 0
Takashi Iwai43bcd972005-09-05 17:19:20 +0200142 snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143#endif
144
145 /* initialize IRQ for WSS codec */
146 tmp = interrupt_bits[irq % 16];
147 if (tmp < 0)
148 return -EINVAL;
149
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);
152 return -EIO;
153 }
154
155 outb(tmp | 0x40, port);
156 tmp1 = dma_bits[dma % 4];
157 outb(tmp | tmp1, port);
158
159 free_irq(irq, NULL);
160
161 return 0;
162}
163
164static int __init snd_sgalaxy_detect(int dev, int irq, int dma)
165{
166#if 0
Takashi Iwai43bcd972005-09-05 17:19:20 +0200167 snd_printdd(PFX "switching to WSS mode\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168#endif
169
170 /* switch to WSS mode */
171 snd_sgalaxy_sbdsp_reset(sbport[dev]);
172
173 snd_sgalaxy_sbdsp_command(sbport[dev], 9);
174 snd_sgalaxy_sbdsp_command(sbport[dev], 0);
175
176 udelay(400);
177 return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
178}
179
180static struct ad1848_mix_elem snd_sgalaxy_controls[] = {
181AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
182AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
183};
184
Takashi Iwai11ff5c62005-11-17 14:42:36 +0100185static int __init snd_sgalaxy_mixer(struct snd_ad1848 *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186{
Takashi Iwai11ff5c62005-11-17 14:42:36 +0100187 struct snd_card *card = chip->card;
188 struct snd_ctl_elem_id id1, id2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 unsigned int idx;
190 int err;
191
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)
199 return err;
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)
203 return err;
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)
208 return err;
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)
212 return err;
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)
216 return err;
217 }
218 return 0;
219}
220
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100221static int __init snd_sgalaxy_probe(struct platform_device *devptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222{
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100223 int dev = devptr->id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 static int possible_irqs[] = {7, 9, 10, 11, -1};
225 static int possible_dmas[] = {1, 3, 0, -1};
226 int err, xirq, xdma1;
Takashi Iwai11ff5c62005-11-17 14:42:36 +0100227 struct snd_card *card;
228 struct snd_ad1848 *chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229
230 if (sbport[dev] == SNDRV_AUTO_PORT) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200231 snd_printk(KERN_ERR PFX "specify SB port\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 return -EINVAL;
233 }
234 if (wssport[dev] == SNDRV_AUTO_PORT) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200235 snd_printk(KERN_ERR PFX "specify WSS port\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 return -EINVAL;
237 }
238 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
239 if (card == NULL)
240 return -ENOMEM;
241
242 xirq = irq[dev];
243 if (xirq == SNDRV_AUTO_IRQ) {
244 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200245 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
246 err = -EBUSY;
247 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 }
249 }
250 xdma1 = dma1[dev];
251 if (xdma1 == SNDRV_AUTO_DMA) {
252 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200253 snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
254 err = -EBUSY;
255 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 }
257 }
258
Takashi Iwai43bcd972005-09-05 17:19:20 +0200259 if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
260 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
262 if ((err = snd_ad1848_create(card, wssport[dev] + 4,
263 xirq, xdma1,
Takashi Iwai43bcd972005-09-05 17:19:20 +0200264 AD1848_HW_DETECT, &chip)) < 0)
265 goto _err;
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100266 card->private_data = chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267
268 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200269 snd_printdd(PFX "error creating new ad1848 PCM device\n");
270 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 }
272 if ((err = snd_ad1848_mixer(chip)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200273 snd_printdd(PFX "error creating new ad1848 mixer\n");
274 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 }
Takashi Iwai43bcd972005-09-05 17:19:20 +0200276 if ((err = snd_sgalaxy_mixer(chip)) < 0) {
277 snd_printdd(PFX "the mixer rewrite failed\n");
278 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 }
280
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);
285
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100286 snd_card_set_dev(card, &devptr->dev);
Takashi Iwai43bcd972005-09-05 17:19:20 +0200287
288 if ((err = snd_card_register(card)) < 0)
289 goto _err;
290
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100291 platform_set_drvdata(devptr, card);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 return 0;
Takashi Iwai43bcd972005-09-05 17:19:20 +0200293
294 _err:
295 snd_card_free(card);
296 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297}
298
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100299static int __devexit snd_sgalaxy_remove(struct platform_device *devptr)
300{
301 snd_card_free(platform_get_drvdata(devptr));
302 platform_set_drvdata(devptr, NULL);
303 return 0;
304}
305
306#ifdef CONFIG_PM
307static int snd_sgalaxy_suspend(struct platform_device *pdev, pm_message_t state)
308{
309 struct snd_card *card = platform_get_drvdata(pdev);
310 struct snd_ad1848 *chip = card->private_data;
311
312 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
313 chip->suspend(chip);
314 return 0;
315}
316
317static int snd_sgalaxy_resume(struct platform_device *pdev)
318{
319 struct snd_card *card = platform_get_drvdata(pdev);
320 struct snd_ad1848 *chip = card->private_data;
321
322 chip->resume(chip);
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]);
325
326 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
327 return 0;
328}
329#endif
330
331#define SND_SGALAXY_DRIVER "snd_sgalaxy"
332
333static struct platform_driver snd_sgalaxy_driver = {
334 .probe = snd_sgalaxy_probe,
335 .remove = __devexit_p(snd_sgalaxy_remove),
336#ifdef CONFIG_PM
337 .suspend = snd_sgalaxy_suspend,
338 .resume = snd_sgalaxy_resume,
339#endif
340 .driver = {
341 .name = SND_SGALAXY_DRIVER
342 },
343};
344
Clemens Ladischf7a92752005-12-07 09:13:42 +0100345static void __init_or_module snd_sgalaxy_unregister_all(void)
346{
347 int i;
348
349 for (i = 0; i < ARRAY_SIZE(devices); ++i)
350 platform_device_unregister(devices[i]);
351 platform_driver_unregister(&snd_sgalaxy_driver);
352}
353
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354static int __init alsa_card_sgalaxy_init(void)
355{
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100356 int i, cards, err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100358 err = platform_driver_register(&snd_sgalaxy_driver);
359 if (err < 0)
360 return err;
361
362 cards = 0;
Takashi Iwai8278ca82006-02-20 11:57:34 +0100363 for (i = 0; i < SNDRV_CARDS; i++) {
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100364 struct platform_device *device;
Takashi Iwai8278ca82006-02-20 11:57:34 +0100365 if (! enable[i])
366 continue;
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100367 device = platform_device_register_simple(SND_SGALAXY_DRIVER,
368 i, NULL, 0);
Rene Hermand0ac6422006-04-11 14:08:33 +0200369 if (IS_ERR(device))
370 continue;
Clemens Ladischf7a92752005-12-07 09:13:42 +0100371 devices[i] = device;
Takashi Iwaifeb158e6a2005-11-17 17:12:43 +0100372 cards++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 }
374 if (!cards) {
375#ifdef MODULE
376 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
377#endif
Rene Hermand0ac6422006-04-11 14:08:33 +0200378 snd_sgalaxy_unregister_all();
379 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 return 0;
382}
383
384static void __exit alsa_card_sgalaxy_exit(void)
385{
Clemens Ladischf7a92752005-12-07 09:13:42 +0100386 snd_sgalaxy_unregister_all();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387}
388
389module_init(alsa_card_sgalaxy_init)
390module_exit(alsa_card_sgalaxy_exit)