blob: 52f2294da62b48c46784aa7a20b3d0727d44352a [file] [log] [blame]
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>
25#include <asm/dma.h>
26#include <linux/init.h>
27#include <linux/delay.h>
28#include <linux/time.h>
29#include <linux/interrupt.h>
30#include <linux/moduleparam.h>
31#include <sound/core.h>
32#include <sound/sb.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>
38
39MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
40MODULE_DESCRIPTION("Aztech Sound Galaxy");
41MODULE_LICENSE("GPL");
42MODULE_SUPPORTED_DEVICE("{{Aztech Systems,Sound Galaxy}}");
43
44static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
46static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
47static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240 */
48static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530,0xe80,0xf40,0x604 */
49static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 7,9,10,11 */
50static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
51
52module_param_array(index, int, NULL, 0444);
53MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
54module_param_array(id, charp, NULL, 0444);
55MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
56module_param_array(sbport, long, NULL, 0444);
57MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
58module_param_array(wssport, long, NULL, 0444);
59MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
60module_param_array(irq, int, NULL, 0444);
61MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
62module_param_array(dma1, int, NULL, 0444);
63MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
64
65#define SGALAXY_AUXC_LEFT 18
66#define SGALAXY_AUXC_RIGHT 19
67
68static snd_card_t *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
69
Takashi Iwai43bcd972005-09-05 17:19:20 +020070#define PFX "sgalaxy: "
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072/*
73
74 */
75
76#define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
77
78/* from lowlevel/sb/sb.c - to avoid having to allocate a sb_t for the */
79/* short time we actually need it.. */
80
81static int snd_sgalaxy_sbdsp_reset(unsigned long port)
82{
83 int i;
84
85 outb(1, SBP1(port, RESET));
86 udelay(10);
87 outb(0, SBP1(port, RESET));
88 udelay(30);
89 for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++);
90 if (inb(SBP1(port, READ)) != 0xaa) {
91 snd_printd("sb_reset: failed at 0x%lx!!!\n", port);
92 return -ENODEV;
93 }
94 return 0;
95}
96
97static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char val)
98{
99 int i;
100
101 for (i = 10000; i; i--)
102 if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
103 outb(val, SBP1(port, COMMAND));
104 return 1;
105 }
106
107 return 0;
108}
109
110static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
111{
112 return IRQ_NONE;
113}
114
115static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
116{
117 static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1,
118 0x10, 0x18, 0x20, -1, -1, -1, -1};
119 static int dma_bits[] = {1, 2, 0, 3};
120 int tmp, tmp1;
121
122 if ((tmp = inb(port + 3)) == 0xff)
123 {
124 snd_printdd("I/O address dead (0x%lx)\n", port);
125 return 0;
126 }
127#if 0
128 snd_printdd("WSS signature = 0x%x\n", tmp);
129#endif
130
131 if ((tmp & 0x3f) != 0x04 &&
132 (tmp & 0x3f) != 0x0f &&
133 (tmp & 0x3f) != 0x00) {
134 snd_printdd("No WSS signature detected on port 0x%lx\n",
135 port + 3);
136 return 0;
137 }
138
139#if 0
Takashi Iwai43bcd972005-09-05 17:19:20 +0200140 snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141#endif
142
143 /* initialize IRQ for WSS codec */
144 tmp = interrupt_bits[irq % 16];
145 if (tmp < 0)
146 return -EINVAL;
147
148 if (request_irq(irq, snd_sgalaxy_dummy_interrupt, SA_INTERRUPT, "sgalaxy", NULL)) {
149 snd_printk(KERN_ERR "sgalaxy: can't grab irq %d\n", irq);
150 return -EIO;
151 }
152
153 outb(tmp | 0x40, port);
154 tmp1 = dma_bits[dma % 4];
155 outb(tmp | tmp1, port);
156
157 free_irq(irq, NULL);
158
159 return 0;
160}
161
162static int __init snd_sgalaxy_detect(int dev, int irq, int dma)
163{
164#if 0
Takashi Iwai43bcd972005-09-05 17:19:20 +0200165 snd_printdd(PFX "switching to WSS mode\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166#endif
167
168 /* switch to WSS mode */
169 snd_sgalaxy_sbdsp_reset(sbport[dev]);
170
171 snd_sgalaxy_sbdsp_command(sbport[dev], 9);
172 snd_sgalaxy_sbdsp_command(sbport[dev], 0);
173
174 udelay(400);
175 return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
176}
177
178static struct ad1848_mix_elem snd_sgalaxy_controls[] = {
179AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
180AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
181};
182
183static int __init snd_sgalaxy_mixer(ad1848_t *chip)
184{
185 snd_card_t *card = chip->card;
186 snd_ctl_elem_id_t id1, id2;
187 unsigned int idx;
188 int err;
189
190 memset(&id1, 0, sizeof(id1));
191 memset(&id2, 0, sizeof(id2));
192 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
193 /* reassign AUX0 to LINE */
194 strcpy(id1.name, "Aux Playback Switch");
195 strcpy(id2.name, "Line Playback Switch");
196 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
197 return err;
198 strcpy(id1.name, "Aux Playback Volume");
199 strcpy(id2.name, "Line Playback Volume");
200 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
201 return err;
202 /* reassign AUX1 to FM */
203 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
204 strcpy(id2.name, "FM Playback Switch");
205 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
206 return err;
207 strcpy(id1.name, "Aux Playback Volume");
208 strcpy(id2.name, "FM Playback Volume");
209 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
210 return err;
211 /* build AUX2 input */
212 for (idx = 0; idx < ARRAY_SIZE(snd_sgalaxy_controls); idx++) {
213 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_sgalaxy_controls[idx])) < 0)
214 return err;
215 }
216 return 0;
217}
218
219static int __init snd_sgalaxy_probe(int dev)
220{
221 static int possible_irqs[] = {7, 9, 10, 11, -1};
222 static int possible_dmas[] = {1, 3, 0, -1};
223 int err, xirq, xdma1;
224 snd_card_t *card;
225 ad1848_t *chip;
226
227 if (sbport[dev] == SNDRV_AUTO_PORT) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200228 snd_printk(KERN_ERR PFX "specify SB port\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 return -EINVAL;
230 }
231 if (wssport[dev] == SNDRV_AUTO_PORT) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200232 snd_printk(KERN_ERR PFX "specify WSS port\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 return -EINVAL;
234 }
235 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
236 if (card == NULL)
237 return -ENOMEM;
238
239 xirq = irq[dev];
240 if (xirq == SNDRV_AUTO_IRQ) {
241 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200242 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
243 err = -EBUSY;
244 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 }
246 }
247 xdma1 = dma1[dev];
248 if (xdma1 == SNDRV_AUTO_DMA) {
249 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200250 snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
251 err = -EBUSY;
252 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 }
254 }
255
Takashi Iwai43bcd972005-09-05 17:19:20 +0200256 if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
257 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
259 if ((err = snd_ad1848_create(card, wssport[dev] + 4,
260 xirq, xdma1,
Takashi Iwai43bcd972005-09-05 17:19:20 +0200261 AD1848_HW_DETECT, &chip)) < 0)
262 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
264 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200265 snd_printdd(PFX "error creating new ad1848 PCM device\n");
266 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 }
268 if ((err = snd_ad1848_mixer(chip)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200269 snd_printdd(PFX "error creating new ad1848 mixer\n");
270 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 }
Takashi Iwai43bcd972005-09-05 17:19:20 +0200272 if ((err = snd_sgalaxy_mixer(chip)) < 0) {
273 snd_printdd(PFX "the mixer rewrite failed\n");
274 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 }
276
277 strcpy(card->driver, "Sound Galaxy");
278 strcpy(card->shortname, "Sound Galaxy");
279 sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
280 wssport[dev], xirq, xdma1);
281
Takashi Iwai43bcd972005-09-05 17:19:20 +0200282 if ((err = snd_card_set_generic_dev(card)) < 0)
283 goto _err;
284
285 if ((err = snd_card_register(card)) < 0)
286 goto _err;
287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 snd_sgalaxy_cards[dev] = card;
289 return 0;
Takashi Iwai43bcd972005-09-05 17:19:20 +0200290
291 _err:
292 snd_card_free(card);
293 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294}
295
296static int __init alsa_card_sgalaxy_init(void)
297{
298 int dev, cards;
299
300 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
301 if (snd_sgalaxy_probe(dev) >= 0)
302 cards++;
303 }
304 if (!cards) {
305#ifdef MODULE
306 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
307#endif
308 return -ENODEV;
309 }
310
311 return 0;
312}
313
314static void __exit alsa_card_sgalaxy_exit(void)
315{
316 int idx;
317
318 for (idx = 0; idx < SNDRV_CARDS; idx++)
319 snd_card_free(snd_sgalaxy_cards[idx]);
320}
321
322module_init(alsa_card_sgalaxy_init)
323module_exit(alsa_card_sgalaxy_exit)