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source: sbliveos2/trunk/sblive/mixer.c@ 176

Last change on this file since 176 was 154, checked in by sandervl, 25 years ago
volume table update
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 29.7 KB

Line
1	/* $Id: mixer.c 154 2000-08-05 12:26:00Z sandervl $ */
2
3
4	/*
5	**********************************************************************
6	* mixer.c - /dev/mixer interface for emu10k1 driver
7	* Copyright 1999, 2000 Creative Labs, Inc.
8	*
9	* This program uses some code from es1371.c, Copyright 1998-1999
10	* Thomas Sailer
11	*
12	**********************************************************************
13	*
14	* Date Author Summary of changes
15	* ---- ------ ------------------
16	* October 20, 1999 Bertrand Lee base code release
17	* November 2, 1999 Alan Cox cleaned up stuff
18	*
19	**********************************************************************
20	*
21	* This program is free software; you can redistribute it and/or
22	* modify it under the terms of the GNU General Public License as
23	* published by the Free Software Foundation; either version 2 of
24	* the License, or (at your option) any later version.
25	*
26	* This program is distributed in the hope that it will be useful,
27	* but WITHOUT ANY WARRANTY; without even the implied warranty of
28	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29	* GNU General Public License for more details.
30	*
31	* You should have received a copy of the GNU General Public
32	* License along with this program; if not, write to the Free
33	* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
34	* USA.
35	*
36	**********************************************************************
37	*/
38
39	#define __NO_VERSION__ /* Kernel version only defined once */
40	#include <linux/module.h>
41	#include <asm/uaccess.h>
42
43	#include "hwaccess.h"
44
45	#define AC97_PESSIMISTIC
46	#undef OSS_DOCUMENTED_MIXER_SEMANTICS
47
48	#define vol_to_hw_5(swvol) (31 - (((swvol) * 31) / 100))
49	#define vol_to_hw_4(swvol) (15 - (((swvol) * 15) / 100))
50
51	#define vol_to_sw_5(hwvol) (((31 - (hwvol)) * 100) / 31)
52	#define vol_to_sw_4(hwvol) (((15 - (hwvol)) * 100) / 15)
53
54	#ifdef PRIVATE_PCM_VOLUME
55	struct sblive_pcm_volume_rec sblive_pcm_volume[MAX_PCM_CHANNELS];
56	#endif
57
58	/* --------------------------------------------------------------------- */
59
60	/*
61	* hweightN: returns the hamming weight (i.e. the number
62	* of bits set) of a N-bit word
63	*/
64
65	#ifdef hweight32
66	#undef hweight32
67	#endif
68
69	extern __inline__ unsigned int hweight32(unsigned int w)
70	{
71	unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
72
73	res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
74	res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
75	res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
76	return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
77	}
78
79	/* Mapping arrays */
80	static const unsigned int recsrc[] = {
81	SOUND_MASK_MIC,
82	SOUND_MASK_CD,
83	SOUND_MASK_VIDEO,
84	SOUND_MASK_LINE1,
85	SOUND_MASK_LINE,
86	SOUND_MASK_VOLUME,
87	SOUND_MASK_OGAIN, /* Used to be PHONEOUT */
88	SOUND_MASK_PHONEIN,
89	SOUND_MASK_TREBLE,
90	SOUND_MASK_BASS,
91	SOUND_MASK_MONITOR,
92	SOUND_MASK_PCM,
93	};
94
95	#ifdef TARGET_OS2
96	static const unsigned char volreg[SOUND_MIXER_NRDEVICES] =
97	{
98	AC97_MASTERVOLUME, //SOUND_MIXER_VOLUME
99	AC97_GENERALPUPOSE, //SOUND_MIXER_BASS
100	AC97_MASTERTONE, //SOUND_MIXER_TREBLE
101	0, //SOUND_MIXER_SYNTH
102	AC97_PCMOUTVOLUME, //SOUND_MIXER_PCM
103	AC97_PCBEEPVOLUME, //SOUND_MIXER_SPEAKER
104	AC97_LINEINVOLUME, //SOUND_MIXER_LINE
105	AC97_MICVOLUME, //SOUND_MIXER_MIC
106	AC97_CDVOLUME, //SOUND_MIXER_CD
107	0, //SOUND_MIXER_IMIX
108	0, //SOUND_MIXER_ALTPCM
109	AC97_RECORDGAIN, //SOUND_MIXER_RECLEV
110	AC97_RECORDGAIN, //SOUND_MIXER_IGAIN
111	AC97_MASTERVOLUMEMONO, //SOUND_MIXER_OGAIN
112	AC97_AUXVOLUME, //SOUND_MIXER_LINE1
113	AC97_PCMOUTVOLUME, //SOUND_MIXER_LINE2
114	0, //SOUND_MIXER_LINE3
115	0, //SOUND_MIXER_DIGITAL1
116	AC97_MASTERVOLUME, //SOUND_MIXER_DIGITAL2
117	0, //SOUND_MIXER_DIGITAL3
118	AC97_PHONEVOLUME, //SOUND_MIXER_PHONEIN
119	AC97_HEADPHONEVOLUME, //SOUND_MIXER_PHONEOUT
120	AC97_VIDEOVOLUME, //SOUND_MIXER_VIDEO
121	0, //SOUND_MIXER_RADIO
122	0, //SOUND_MIXER_MONITOR
123	};
124	#else
125	static const unsigned char volreg[SOUND_MIXER_NRDEVICES] = {
126	/* 5 bit stereo */
127	[SOUND_MIXER_LINE] = AC97_LINEINVOLUME,
128	[SOUND_MIXER_CD] = AC97_CDVOLUME,
129	[SOUND_MIXER_VIDEO] = AC97_VIDEOVOLUME,
130	[SOUND_MIXER_LINE1] = AC97_AUXVOLUME,
131
132	/* [SOUND_MIXER_PCM] = AC97_PCMOUTVOLUME, */
133	/* 5 bit stereo, setting 6th bit equal to maximum attenuation */
134
135	/* [SOUND_MIXER_VOLUME] = AC97_MASTERVOLUME, */
136	[SOUND_MIXER_PHONEOUT] = AC97_HEADPHONEVOLUME,
137	/* 5 bit mono, setting 6th bit equal to maximum attenuation */
138	[SOUND_MIXER_OGAIN] = AC97_MASTERVOLUMEMONO,
139	/* 5 bit mono */
140	[SOUND_MIXER_PHONEIN] = AC97_PHONEVOLUME,
141	/* 4 bit mono but shifted by 1 */
142	[SOUND_MIXER_SPEAKER] = AC97_PCBEEPVOLUME,
143	/* 5 bit mono, 7th bit = preamp */
144	[SOUND_MIXER_MIC] = AC97_MICVOLUME,
145	/* 4 bit stereo */
146	[SOUND_MIXER_RECLEV] = AC97_RECORDGAIN,
147	/* 4 bit mono */
148	[SOUND_MIXER_IGAIN] = AC97_RECORDGAINMIC,
149	/* test code */
150	[SOUND_MIXER_BASS] = AC97_GENERALPUPOSE,
151	[SOUND_MIXER_TREBLE] = AC97_MASTERTONE,
152	[SOUND_MIXER_LINE2] = AC97_PCMOUTVOLUME,
153	[SOUND_MIXER_DIGITAL2] = AC97_MASTERVOLUME
154	};
155	#endif //TARGET_OS2
156
157	#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
158
159	#define swab(x) ((((x) >> 8) & 0xff) \| (((x) << 8) & 0xff00))
160
161	/* FIXME: mixer_rdch() is broken. */
162
163	static int mixer_rdch(struct emu10k1_card card, unsigned int ch, int arg)
164	{
165	u16 reg;
166	int j;
167	int nL, nR;
168
169	switch (ch) {
170	case SOUND_MIXER_LINE:
171	case SOUND_MIXER_CD:
172	case SOUND_MIXER_VIDEO:
173	case SOUND_MIXER_LINE1:
174	case SOUND_MIXER_PCM:
175	case SOUND_MIXER_VOLUME:
176	sblive_readac97(card, volreg[ch], &reg);
177	nL = ((~(reg >> 8) & 0x1f) * 100) / 32;
178	nR = (~(reg & 0x1f) * 100) / 32;
179	DPD(2, "mixer_rdch: l=%d, r=%d\n", nL, nR);
180	return put_user(reg & 0x8000 ? 0 : (nL << 8) \| nR, (int *) arg);
181
182	case SOUND_MIXER_OGAIN:
183	case SOUND_MIXER_PHONEIN:
184	sblive_readac97(card, volreg[ch], &reg);
185	return put_user(reg & 0x8000 ? 0 : ~(reg & 0x1f) * 0x64 / 0x20 * 0x101, (int *) arg);
186
187	case SOUND_MIXER_SPEAKER:
188	sblive_readac97(card, volreg[ch], &reg);
189	return put_user(reg & 0x8000 ? 0 : ~((reg >> 1) & 0xf) * 0x64 / 0x10 * 0x101, (int *) arg);
190
191	case SOUND_MIXER_MIC:
192	sblive_readac97(card, volreg[ch], &reg);
193	return put_user(reg & 0x8000 ? 0 : ~(reg & 0x1f) * 0x64 / 0x20 * 0x101 + ((reg & 0x40) ? 0x1e1e : 0), (int *) arg);
194
195	case SOUND_MIXER_RECLEV:
196	sblive_readac97(card, volreg[ch], &reg);
197	nL = ((~(reg >> 8) & 0x1f) * 100) / 16;
198	nR = (~(reg & 0x1f) * 100) / 16;
199	return put_user(reg & 0x8000 ? 0 : (nL << 8) \| nR, (int *) arg);
200
201	case SOUND_MIXER_TREBLE:
202	case SOUND_MIXER_BASS:
203	return put_user(0x0000, (int *) arg);
204	default:
205	return -EINVAL;
206	}
207	}
208
209	#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
210
211	#ifdef TARGET_OS2
212	static const unsigned char volidx[SOUND_MIXER_NRDEVICES] =
213	{
214	6, //SOUND_MIXER_VOLUME
215	15, //SOUND_MIXER_BASS
216	14, //SOUND_MIXER_TREBLE
217	0, //SOUND_MIXER_SYNTH
218	5, //SOUND_MIXER_PCM
219	10, //SOUND_MIXER_SPEAKER
220	1, //SOUND_MIXER_LINE
221	11, //SOUND_MIXER_MIC
222	2, //SOUND_MIXER_CD
223	0, //SOUND_MIXER_IMIX
224	16, //SOUND_MIXER_ALTPCM
225	12, //SOUND_MIXER_RECLEV
226	13, //SOUND_MIXER_IGAIN
227	8, //SOUND_MIXER_OGAIN
228	4, //SOUND_MIXER_LINE1
229	16, //SOUND_MIXER_LINE2
230	17, //SOUND_MIXER_LINE3
231	18, //SOUND_MIXER_DIGITAL1
232	19, //SOUND_MIXER_DIGITAL2
233	0, //SOUND_MIXER_DIGITAL3
234	9, //SOUND_MIXER_PHONEIN
235	7, //SOUND_MIXER_PHONEOUT
236	3, //SOUND_MIXER_VIDEO
237	0, //SOUND_MIXER_RADIO
238	0, //SOUND_MIXER_MONITOR
239	};
240	#else
241	static const unsigned char volidx[SOUND_MIXER_NRDEVICES] = {
242	/* 5 bit stereo */
243	[SOUND_MIXER_LINE] = 1,
244	[SOUND_MIXER_CD] = 2,
245	[SOUND_MIXER_VIDEO] = 3,
246	[SOUND_MIXER_LINE1] = 4,
247	[SOUND_MIXER_PCM] = 5,
248	/* 6 bit stereo */
249	[SOUND_MIXER_VOLUME] = 6,
250	[SOUND_MIXER_PHONEOUT] = 7,
251	/* 6 bit mono */
252	[SOUND_MIXER_OGAIN] = 8,
253	[SOUND_MIXER_PHONEIN] = 9,
254	/* 4 bit mono but shifted by 1 */
255	[SOUND_MIXER_SPEAKER] = 10,
256	/* 6 bit mono + preamp */
257	[SOUND_MIXER_MIC] = 11,
258	/* 4 bit stereo */
259	[SOUND_MIXER_RECLEV] = 12,
260	/* 4 bit mono */
261	[SOUND_MIXER_IGAIN] = 13,
262	[SOUND_MIXER_TREBLE] = 14,
263	[SOUND_MIXER_BASS] = 15,
264	[SOUND_MIXER_LINE2] = 16,
265	[SOUND_MIXER_LINE3] = 17,
266	[SOUND_MIXER_DIGITAL1] = 18,
267	[SOUND_MIXER_DIGITAL2] = 19
268	};
269	#endif //TARGET_OS2
270
271	static const u32 bass_table[41][5] = {
272	{ 0x3e4f844f, 0x84ed4cc3, 0x3cc69927, 0x7b03553a, 0xc4da8486 },
273	{ 0x3e69a17a, 0x84c280fb, 0x3cd77cd4, 0x7b2f2a6f, 0xc4b08d1d },
274	{ 0x3e82ff42, 0x849991d5, 0x3ce7466b, 0x7b5917c6, 0xc48863ee },
275	{ 0x3e9bab3c, 0x847267f0, 0x3cf5ffe8, 0x7b813560, 0xc461f22c },
276	{ 0x3eb3b275, 0x844ced29, 0x3d03b295, 0x7ba79a1c, 0xc43d223b },
277	{ 0x3ecb2174, 0x84290c8b, 0x3d106714, 0x7bcc5ba3, 0xc419dfa5 },
278	{ 0x3ee2044b, 0x8406b244, 0x3d1c2561, 0x7bef8e77, 0xc3f8170f },
279	{ 0x3ef86698, 0x83e5cb96, 0x3d26f4d8, 0x7c114600, 0xc3d7b625 },
280	{ 0x3f0e5390, 0x83c646c9, 0x3d30dc39, 0x7c319498, 0xc3b8ab97 },
281	{ 0x3f23d60b, 0x83a81321, 0x3d39e1af, 0x7c508b9c, 0xc39ae704 },
282	{ 0x3f38f884, 0x838b20d2, 0x3d420ad2, 0x7c6e3b75, 0xc37e58f1 },
283	{ 0x3f4dc52c, 0x836f60ef, 0x3d495cab, 0x7c8ab3a6, 0xc362f2be },
284	{ 0x3f6245e8, 0x8354c565, 0x3d4fdbb8, 0x7ca602d6, 0xc348a69b },
285	{ 0x3f76845f, 0x833b40ec, 0x3d558bf0, 0x7cc036df, 0xc32f677c },
286	{ 0x3f8a8a03, 0x8322c6fb, 0x3d5a70c4, 0x7cd95cd7, 0xc317290b },
287	{ 0x3f9e6014, 0x830b4bc3, 0x3d5e8d25, 0x7cf1811a, 0xc2ffdfa5 },
288	{ 0x3fb20fae, 0x82f4c420, 0x3d61e37f, 0x7d08af56, 0xc2e9804a },
289	{ 0x3fc5a1cc, 0x82df2592, 0x3d6475c3, 0x7d1ef294, 0xc2d40096 },
290	{ 0x3fd91f55, 0x82ca6632, 0x3d664564, 0x7d345541, 0xc2bf56b9 },
291	{ 0x3fec9120, 0x82b67cac, 0x3d675356, 0x7d48e138, 0xc2ab796e },
292	{ 0x40000000, 0x82a36037, 0x3d67a012, 0x7d5c9fc9, 0xc2985fee },
293	{ 0x401374c7, 0x8291088a, 0x3d672b93, 0x7d6f99c3, 0xc28601f2 },
294	{ 0x4026f857, 0x827f6dd7, 0x3d65f559, 0x7d81d77c, 0xc27457a3 },
295	{ 0x403a939f, 0x826e88c5, 0x3d63fc63, 0x7d9360d4, 0xc2635996 },
296	{ 0x404e4faf, 0x825e5266, 0x3d613f32, 0x7da43d42, 0xc25300c6 },
297	{ 0x406235ba, 0x824ec434, 0x3d5dbbc3, 0x7db473d7, 0xc243468e },
298	{ 0x40764f1f, 0x823fd80c, 0x3d596f8f, 0x7dc40b44, 0xc23424a2 },
299	{ 0x408aa576, 0x82318824, 0x3d545787, 0x7dd309e2, 0xc2259509 },
300	{ 0x409f4296, 0x8223cf0b, 0x3d4e7012, 0x7de175b5, 0xc2179218 },
301	{ 0x40b430a0, 0x8216a7a1, 0x3d47b505, 0x7def5475, 0xc20a1670 },
302	{ 0x40c97a0a, 0x820a0d12, 0x3d4021a1, 0x7dfcab8d, 0xc1fd1cf5 },
303	{ 0x40df29a6, 0x81fdfad6, 0x3d37b08d, 0x7e098028, 0xc1f0a0ca },
304	{ 0x40f54ab1, 0x81f26ca9, 0x3d2e5bd1, 0x7e15d72b, 0xc1e49d52 },
305	{ 0x410be8da, 0x81e75e89, 0x3d241cce, 0x7e21b544, 0xc1d90e24 },
306	{ 0x41231051, 0x81dcccb3, 0x3d18ec37, 0x7e2d1ee6, 0xc1cdef10 },
307	{ 0x413acdd0, 0x81d2b39e, 0x3d0cc20a, 0x7e38184e, 0xc1c33c13 },
308	{ 0x41532ea7, 0x81c90ffb, 0x3cff9585, 0x7e42a58b, 0xc1b8f15a },
309	{ 0x416c40cd, 0x81bfdeb2, 0x3cf15d21, 0x7e4cca7c, 0xc1af0b3f },
310	{ 0x418612ea, 0x81b71cdc, 0x3ce20e85, 0x7e568ad3, 0xc1a58640 },
311	{ 0x41a0b465, 0x81aec7c5, 0x3cd19e7c, 0x7e5fea1e, 0xc19c5f03 },
312	{ 0x41bc3573, 0x81a6dcea, 0x3cc000e9, 0x7e68ebc2, 0xc1939250 }
313	};
314
315	static const u32 treble_table[41][5] = {
316	{ 0x0125cba9, 0xfed5debd, 0x00599b6c, 0x0d2506da, 0xfa85b354 },
317	{ 0x0142f67e, 0xfeb03163, 0x0066cd0f, 0x0d14c69d, 0xfa914473 },
318	{ 0x016328bd, 0xfe860158, 0x0075b7f2, 0x0d03eb27, 0xfa9d32d2 },
319	{ 0x0186b438, 0xfe56c982, 0x00869234, 0x0cf27048, 0xfaa97fca },
320	{ 0x01adf358, 0xfe21f5fe, 0x00999842, 0x0ce051c2, 0xfab62ca5 },
321	{ 0x01d949fa, 0xfde6e287, 0x00af0d8d, 0x0ccd8b4a, 0xfac33aa7 },
322	{ 0x02092669, 0xfda4d8bf, 0x00c73d4c, 0x0cba1884, 0xfad0ab07 },
323	{ 0x023e0268, 0xfd5b0e4a, 0x00e27b54, 0x0ca5f509, 0xfade7ef2 },
324	{ 0x0278645c, 0xfd08a2b0, 0x01012509, 0x0c911c63, 0xfaecb788 },
325	{ 0x02b8e091, 0xfcac9d1a, 0x0123a262, 0x0c7b8a14, 0xfafb55df },
326	{ 0x03001a9a, 0xfc45e9ce, 0x014a6709, 0x0c65398f, 0xfb0a5aff },
327	{ 0x034ec6d7, 0xfbd3576b, 0x0175f397, 0x0c4e2643, 0xfb19c7e4 },
328	{ 0x03a5ac15, 0xfb5393ee, 0x01a6d6ed, 0x0c364b94, 0xfb299d7c },
329	{ 0x0405a562, 0xfac52968, 0x01ddafae, 0x0c1da4e2, 0xfb39dca5 },
330	{ 0x046fa3fe, 0xfa267a66, 0x021b2ddd, 0x0c042d8d, 0xfb4a8631 },
331	{ 0x04e4b17f, 0xf975be0f, 0x0260149f, 0x0be9e0f2, 0xfb5b9ae0 },
332	{ 0x0565f220, 0xf8b0fbe5, 0x02ad3c29, 0x0bceba73, 0xfb6d1b60 },
333	{ 0x05f4a745, 0xf7d60722, 0x030393d4, 0x0bb2b578, 0xfb7f084d },
334	{ 0x06923236, 0xf6e279bd, 0x03642465, 0x0b95cd75, 0xfb916233 },
335	{ 0x07401713, 0xf5d3aef9, 0x03d01283, 0x0b77fded, 0xfba42984 },
336	{ 0x08000000, 0xf4a6bd88, 0x0448a161, 0x0b594278, 0xfbb75e9f },
337	{ 0x08d3c097, 0xf3587131, 0x04cf35a4, 0x0b3996c9, 0xfbcb01cb },
338	{ 0x09bd59a2, 0xf1e543f9, 0x05655880, 0x0b18f6b2, 0xfbdf1333 },
339	{ 0x0abefd0f, 0xf04956ca, 0x060cbb12, 0x0af75e2c, 0xfbf392e8 },
340	{ 0x0bdb123e, 0xee806984, 0x06c739fe, 0x0ad4c962, 0xfc0880dd },
341	{ 0x0d143a94, 0xec85d287, 0x0796e150, 0x0ab134b0, 0xfc1ddce5 },
342	{ 0x0e6d5664, 0xea547598, 0x087df0a0, 0x0a8c9cb6, 0xfc33a6ad },
343	{ 0x0fe98a2a, 0xe7e6ba35, 0x097edf83, 0x0a66fe5b, 0xfc49ddc2 },
344	{ 0x118c4421, 0xe536813a, 0x0a9c6248, 0x0a4056d7, 0xfc608185 },
345	{ 0x1359422e, 0xe23d19eb, 0x0bd96efb, 0x0a18a3bf, 0xfc77912c },
346	{ 0x1554982b, 0xdef33645, 0x0d3942bd, 0x09efe312, 0xfc8f0bc1 },
347	{ 0x1782b68a, 0xdb50deb1, 0x0ebf676d, 0x09c6133f, 0xfca6f019 },
348	{ 0x19e8715d, 0xd74d64fd, 0x106fb999, 0x099b3337, 0xfcbf3cd6 },
349	{ 0x1c8b07b8, 0xd2df56ab, 0x124e6ec8, 0x096f4274, 0xfcd7f060 },
350	{ 0x1f702b6d, 0xcdfc6e92, 0x14601c10, 0x0942410b, 0xfcf108e5 },
351	{ 0x229e0933, 0xc89985cd, 0x16a9bcfa, 0x09142fb5, 0xfd0a8451 },
352	{ 0x261b5118, 0xc2aa8409, 0x1930bab6, 0x08e50fdc, 0xfd24604d },
353	{ 0x29ef3f5d, 0xbc224f28, 0x1bfaf396, 0x08b4e3aa, 0xfd3e9a3b },
354	{ 0x2e21a59b, 0xb4f2ba46, 0x1f0ec2d6, 0x0883ae15, 0xfd592f33 },
355	{ 0x32baf44b, 0xad0c7429, 0x227308a3, 0x085172eb, 0xfd741bfd },
356	{ 0x37c4448b, 0xa45ef51d, 0x262f3267, 0x081e36dc, 0xfd8f5d14 }
357	};
358
359	static void set_bass(struct emu10k1_card *card, int l, int r)
360	{
361	int i;
362
363	l = (l * 40 + 50) / 100;
364	r = (r * 40 + 50) / 100;
365	for (i = 0; i < 5; i++) {
366	sblive_writeptr(card, FXGPREGBASE + 0x80 + (i * 2), 0, bass_table[l][i]);
367	sblive_writeptr(card, FXGPREGBASE + 0x80 + (i * 2) + 1, 0, bass_table[r][i]);
368	}
369	}
370
371	static void set_treble(struct emu10k1_card *card, int l, int r)
372	{
373	int i;
374
375	l = (l * 40 + 50) / 100;
376	r = (r * 40 + 50) / 100;
377	for (i = 0; i < 5; i++) {
378	sblive_writeptr(card, FXGPREGBASE + 0x90 + (i * 2), 0, treble_table[l][i]);
379	sblive_writeptr(card, FXGPREGBASE + 0x90 + (i * 2) + 1, 0, treble_table[r][i]);
380	}
381	}
382
383	static const u32 db_table[101] = {
384	0x00000000, 0x01571f82, 0x01674b41, 0x01783a1b, 0x0189f540,
385	0x019c8651, 0x01aff763, 0x01c45306, 0x01d9a446, 0x01eff6b8,
386	0x0207567a, 0x021fd03d, 0x0239714c, 0x02544792, 0x027061a1,
387	0x028dcebb, 0x02ac9edc, 0x02cce2bf, 0x02eeabe8, 0x03120cb0,
388	0x0337184e, 0x035de2df, 0x03868173, 0x03b10a18, 0x03dd93e9,
389	0x040c3713, 0x043d0cea, 0x04702ff3, 0x04a5bbf2, 0x04ddcdfb,
390	0x0518847f, 0x0555ff62, 0x05966005, 0x05d9c95d, 0x06206005,
391	0x066a4a52, 0x06b7b067, 0x0708bc4c, 0x075d9a01, 0x07b6779d,
392	0x08138561, 0x0874f5d5, 0x08dafde1, 0x0945d4ed, 0x09b5b4fd,
393	0x0a2adad1, 0x0aa58605, 0x0b25f936, 0x0bac7a24, 0x0c3951d8,
394	0x0ccccccc, 0x0d673b17, 0x0e08f093, 0x0eb24510, 0x0f639481,
395	0x101d3f2d, 0x10dfa9e6, 0x11ab3e3f, 0x12806ac3, 0x135fa333,
396	0x144960c5, 0x153e2266, 0x163e6cfe, 0x174acbb7, 0x1863d04d,
397	0x198a1357, 0x1abe349f, 0x1c00db77, 0x1d52b712, 0x1eb47ee6,
398	0x2026f30f, 0x21aadcb6, 0x23410e7e, 0x24ea64f9, 0x26a7c71d,
399	0x287a26c4, 0x2a62812c, 0x2c61df84, 0x2e795779, 0x30aa0bcf,
400	0x32f52cfe, 0x355bf9d8, 0x37dfc033, 0x3a81dda4, 0x3d43c038,
401	0x4026e73c, 0x432ce40f, 0x46575af8, 0x49a8040f, 0x4d20ac2a,
402	0x50c335d3, 0x54919a57, 0x588dead1, 0x5cba514a, 0x611911ea,
403	0x65ac8c2f, 0x6a773c39, 0x6f7bbc23, 0x74bcc56c, 0x7a3d3272,
404	0x7fffffff,
405	};
406
407	static void update_digital(struct emu10k1_card *card)
408	{
409	int i, k, l1, r1, l2, r2, l3, r3, l4, r4;
410	u64 j;
411
412	i = card->arrwVol[volidx[SOUND_MIXER_VOLUME]];
413	l1 = (i & 0xff);
414	r1 = ((i >> 8) & 0xff);
415	i = card->arrwVol[volidx[SOUND_MIXER_LINE3]];
416	l2 = i & 0xff;
417	r2 = (i >> 8) & 0xff;
418
419	i = card->arrwVol[volidx[SOUND_MIXER_PCM]];
420	l3 = i & 0xff;
421	r3 = (i >> 8) & 0xff;
422
423	i = card->arrwVol[volidx[SOUND_MIXER_DIGITAL1]];
424	l4 = i & 0xff;
425	r4 = (i >> 8) & 0xff;
426
427	i = (r1 * r2) / 50;
428	if (r2 > 50)
429	r2 = 2 * r1 - i;
430	else {
431	r2 = r1;
432	r1 = i;
433	}
434
435	i = (l1 * l2) / 50;
436	if (l2 > 50)
437	l2 = 2 * l1 - i;
438	else {
439	l2 = l1;
440	l1 = i;
441	}
442
443	for (i = 0; i < 36; i++) {
444	if (card->digmix[i] != 0x80000000) {
445	if (((i >= 0) && (i < 4)) \|\| ((i >= 18) && (i < 22)))
446	j = (i & 1) ? ((u64) db_table[r1] * (u64) db_table[r3]) : ((u64) db_table[l1] * (u64) db_table[l3]);
447	else if ((i == 6) \|\| (i == 7) \|\| (i == 24) \|\| (i == 25))
448	j = (i & 1) ? ((u64) db_table[r1] * (u64) db_table[r4]) : ((u64) db_table[l1] * (u64) db_table[l4]);
449	else
450	j = ((i & 1) ? db_table[r1] : db_table[l1]) << 31;
451	card->digmix[i] = j >> 31;
452	sblive_writeptr(card, FXGPREGBASE + 0x10 + i, 0, card->digmix[i]);
453	}
454	}
455
456	for (i = 72; i < 90; i++) {
457	if (card->digmix[i] != 0x80000000) {
458	if ((i >= 72) && (i < 76))
459	j = (i & 1) ? ((u64) db_table[r2] * (u64) db_table[r3]) : ((u64) db_table[l2] * (u64) db_table[l3]);
460	else if ((i == 78) \|\| (i == 79))
461	j = (i & 1) ? ((u64) db_table[r2] * (u64) db_table[r4]) : ((u64) db_table[l2] * (u64) db_table[l4]);
462	else
463	j = ((i & 1) ? db_table[r2] : db_table[l2]) << 31;
464	card->digmix[i] = j >> 31;
465	sblive_writeptr(card, FXGPREGBASE + 0x10 + i, 0, card->digmix[i]);
466	}
467	}
468
469	for (i = 36; i <= 90; i += 18) {
470	if (i != 72) {
471	for (k = 0; k < 4; k++)
472	if (card->digmix[i + k] != 0x80000000) {
473	card->digmix[i + k] = db_table[l3];
474	sblive_writeptr(card, FXGPREGBASE + 0x10 + i + k, 0, card->digmix[i + k]);
475	}
476	if (card->digmix[i + 6] != 0x80000000) {
477	card->digmix[i + 6] = db_table[l4];
478	sblive_writeptr(card, FXGPREGBASE + 0x10 + i + 6, 0, card->digmix[i + 6]);
479	}
480	if (card->digmix[i + 7] != 0x80000000) {
481	card->digmix[i + 7] = db_table[r4];
482	sblive_writeptr(card, FXGPREGBASE + 0x10 + i + 7, 0, card->digmix[i + 7]);
483	}
484	}
485	}
486
487	}
488
489	#ifdef PRIVATE_PCM_VOLUME
490
491	#if 1
492	static unsigned char LinToLog[100] = {
493	0, 0, 0, 0, 1, 2, 2, 5, 5, 10,
494	10, 10, 16, 19, 20, 22, 24, 25, 27, 27,
495	28, 28, 29, 30, 30, 35, 35, 35, 39, 39,
496	43, 44, 45, 47, 48, 49, 50, 51, 52, 53,
497	55, 56, 57, 59, 60, 62, 63, 64, 65, 66,
498	67, 68, 69, 70, 71, 72, 73, 74, 74, 75,
499	76, 77, 78, 79, 79, 80, 81, 82, 83, 84,
500	85, 86, 87, 88, 89, 90, 91, 92, 92, 93,
501	93, 94, 94, 95, 95, 96, 96, 97, 97, 98,
502	98, 99, 99, 99, 99, 100, 100, 100, 100, 100
503	};
504	#else
505	static unsigned char LinToLog[100] = {
506	0, 0, 0, 0, 1, 2, 2, 5, 5, 10,
507	10, 10, 16, 19, 20, 22, 24, 25, 27, 27,
508	28, 28, 29, 30, 30, 35, 35, 35, 39, 39,
509	43, 45, 47, 49, 50, 50, 60, 60, 70, 72,
510	72, 74, 74, 74, 75, 75, 76, 77, 78, 80,
511	82, 83, 85, 85, 85, 88, 88, 88, 88, 90,
512	90, 93, 93, 93, 95, 95, 95, 95, 95, 95,
513	95, 96, 96, 97, 97, 98, 98, 98, 98, 99,
514	99, 99, 99, 99, 99, 99, 99, 99, 100, 100,
515	100, 100, 100, 100, 100, 100, 100, 100, 100, 100
516	};
517	#endif
518
519	/* calc & set attenuation factor for given channel */
520	static int set_pcm_attn(struct emu10k1_card *card, int ch, int l)
521	{
522	#ifndef PCMLEVEL
523	#define PCMLEVEL 110 /* almost silence */
524	#endif
525	int vol = IFATN_ATTENUATION_MASK; /* silence */
526
527	if (l > 0) {
528	if(l < 100) {
529	l = LinToLog[l];
530	}
531	vol = (PCMLEVEL - (l * PCMLEVEL + 50) / 100);
532	}
533	sblive_writeptr(card, IFATN, ch, IFATN_FILTERCUTOFF_MASK \| vol);
534	DPD(2, "SOUND_MIXER_PCM: channel:%d level:%d attn:%d\n", ch, l, vol);
535
536	return vol;
537	#undef PCMLEVEL
538	}
539
540	/* update value of local PCM volume level (using channel attenuation)
541	*
542	* return 1: in case its local change
543	* 0: if the current process doesn't have entry in table
544	* (it means this process have not opened audio (mixer usually)
545	*/
546
547	static int update_pcm_attn(struct emu10k1_card *card, unsigned l1, unsigned r1)
548	{
549	int i;
550	int mixer = (r1 << 8) \| l1;
551
552	//SvL; First call (during mixer init) must return 0 and fill in the
553	// arrwVol array. Only then will update_digital be called.
554	// If this doesn't happen, sound is disabled.
555	// Check here that current->files != 0
556	for (i = 0; i < MAX_PCM_CHANNELS; i++) {
557	#ifdef TARGET_OS2
558	if (current->files && sblive_pcm_volume[i].files == current->files) {
559	#else
560	if (sblive_pcm_volume[i].files == current->files) {
561	#endif
562	sblive_pcm_volume[i].mixer = mixer;
563	if (sblive_pcm_volume[i].opened) {
564	if (sblive_pcm_volume[i].channel_r < NUM_G) {
565	if (sblive_pcm_volume[i].channel_l < NUM_G)
566	sblive_pcm_volume[i].attn_l = set_pcm_attn(card, sblive_pcm_volume[i].channel_l, l1);
567	sblive_pcm_volume[i].attn_r = set_pcm_attn(card, sblive_pcm_volume[i].channel_r, r1);
568	} else {
569	// mono voice
570	if (sblive_pcm_volume[i].channel_l < NUM_G)
571	sblive_pcm_volume[i].attn_l =
572	set_pcm_attn(card, sblive_pcm_volume[i].channel_l, (l1 >= r1) ? l1 : r1);
573	// to correctly handle mono voice here we would need
574	// to go into stereo mode and move the voice to the right & left
575	// looks a bit overcomlicated...
576	}
577
578	}
579	return 1;
580	}
581	}
582	card->arrwVol[volidx[SOUND_MIXER_PCM]] = mixer;
583
584	return 0;
585	}
586	#endif
587
588	int emu10k1_mixer_wrch(struct emu10k1_card *card, unsigned int ch, int val)
589	{
590	int i;
591	unsigned l1, r1;
592	u16 wval;
593
594	l1 = val & 0xff;
595	r1 = (val >> 8) & 0xff;
596	if (l1 > 100)
597	l1 = 100;
598	if (r1 > 100)
599	r1 = 100;
600
601	DPD(4, "emu10k1_mixer_wrch() called: ch=%u, l1=%u, r1=%u\n", ch, l1, r1);
602
603	if (!volidx[ch])
604	return -EINVAL;
605	#ifdef PRIVATE_PCM_VOLUME
606	if (ch != SOUND_MIXER_PCM)
607	#endif
608	card->arrwVol[volidx[ch]] = (r1 << 8) \| l1;
609
610	switch (ch) {
611	case SOUND_MIXER_VOLUME:
612	case SOUND_MIXER_DIGITAL1:
613	case SOUND_MIXER_LINE3:
614	DPD(4, "SOUND_MIXER_%s:\n", (ch == SOUND_MIXER_VOLUME) ? "VOLUME" : (ch == SOUND_MIXER_DIGITAL1) ? "DIGITAL1" : "LINE3");
615	update_digital(card);
616	return 0;
617	case SOUND_MIXER_PCM:
618	DPF(4, "SOUND_MIXER_PCM\n");
619	#ifdef PRIVATE_PCM_VOLUME
620	if (update_pcm_attn(card, l1, r1))
621	return 0;
622	#endif
623	update_digital(card);
624	return 0;
625	case SOUND_MIXER_DIGITAL2:
626	case SOUND_MIXER_LINE2:
627	case SOUND_MIXER_LINE1:
628	case SOUND_MIXER_LINE:
629	case SOUND_MIXER_CD:
630	DPD(4, "SOUND_MIXER_%s:\n",
631	(ch == SOUND_MIXER_LINE1) ? "LINE1" :
632	(ch == SOUND_MIXER_LINE2) ? "LINE2" : (ch == SOUND_MIXER_LINE) ? "LINE" : (ch == SOUND_MIXER_DIGITAL2) ? "DIGITAL2" : "CD");
633	wval = ((((100 - l1) * 32 + 50) / 100) << 8) \| (((100 - r1) * 32 + 50) / 100);
634	if (wval == 0x2020)
635	wval = 0x8000;
636	else
637	wval -= ((wval & 0x2020) / 0x20);
638	sblive_writeac97(card, volreg[ch], wval);
639	return 0;
640
641	case SOUND_MIXER_OGAIN:
642	case SOUND_MIXER_PHONEIN:
643	DPD(4, "SOUND_MIXER_%s:\n", (ch == SOUND_MIXER_PHONEIN) ? "PHONEIN" : "OGAIN");
644	sblive_writeac97(card, volreg[ch], (l1 < 2) ? 0x8000 : ((100 - l1) * 32 + 50) / 100);
645	return 0;
646
647	case SOUND_MIXER_SPEAKER:
648	DPF(4, "SOUND_MIXER_SPEAKER:\n");
649	sblive_writeac97(card, volreg[ch], (l1 < 4) ? 0x8000 : (((100 - l1) * 16 + 50) / 100) << 1);
650	return 0;
651
652	case SOUND_MIXER_MIC:
653	DPF(4, "SOUND_MIXER_MIC:\n");
654	i = 0;
655	if (l1 >= 30)
656	// 20dB / (34.5dB + 12dB + 20dB) * 100 = 30
657	{
658	l1 -= 30;
659	i = 0x40;
660	}
661	sblive_writeac97(card, volreg[ch], (l1 < 2) ? 0x8000 : ((((70 - l1) * 0x20 + 35) / 70) \| i));
662	return 0;
663
664	case SOUND_MIXER_RECLEV:
665	DPF(4, "SOUND_MIXER_RECLEV:\n");
666
667	wval = (((l1 * 16 + 50) / 100) << 8) \| ((r1 * 16 + 50) / 100);
668	if (wval == 0)
669	wval = 0x8000;
670	else {
671	if (wval & 0xff)
672	wval--;
673	if (wval & 0xff00)
674	wval -= 0x0100;
675	}
676	sblive_writeac97(card, volreg[ch], wval);
677	return 0;
678
679	case SOUND_MIXER_TREBLE:
680	DPF(4, "SOUND_MIXER_TREBLE:\n");
681	set_treble(card, l1, r1);
682	return 0;
683
684	case SOUND_MIXER_BASS:
685	DPF(4, "SOUND_MIXER_BASS:\n");
686	set_bass(card, l1, r1);
687	return 0;
688
689	default:
690	DPF(2, "Got unknown SOUND_MIXER ioctl\n");
691	return -EINVAL;
692	}
693	}
694
695	static loff_t emu10k1_mixer_llseek(struct file *file, loff_t offset, int origin)
696	{
697	DPF(2, "sblive_mixer_llseek() called\n");
698	return -ESPIPE;
699	}
700
701	/* Mixer file operations */
702
703	/* FIXME: Do we need spinlocks in here? */
704	static int emu10k1_mixer_ioctl(struct inode inode, struct file file, unsigned int cmd, unsigned long arg)
705	{
706	static const char id[] = "SBLive";
707	static const char name[] = "Creative SBLive";
708	int i, val;
709	struct emu10k1_card card = (struct emu10k1_card ) file->private_data;
710	u16 reg;
711
712	switch (cmd) {
713
714	case SOUND_MIXER_INFO:{
715	mixer_info info;
716
717	DPF(4, "SOUND_MIXER_INFO\n");
718
719	strncpy(info.id, id, sizeof(info.id));
720	strncpy(info.name, name, sizeof(info.name));
721
722	info.modify_counter = card->modcnt;
723	if (copy_to_user((void *) arg, &info, sizeof(info)))
724	return -EFAULT;
725
726	return 0;
727	}
728	break;
729	case SOUND_OLD_MIXER_INFO:{
730	_old_mixer_info info;
731
732	DPF(4, "SOUND_OLD_MIXER_INFO\n");
733
734	strncpy(info.id, id, sizeof(info.id));
735	strncpy(info.name, name, sizeof(info.name));
736
737	if (copy_to_user((void *) arg, &info, sizeof(info)))
738	return -EFAULT;
739
740	return 0;
741	}
742	break;
743
744	case OSS_GETVERSION:
745	DPF(4, "OSS_GETVERSION\n");
746	return put_user(SOUND_VERSION, (int *) arg);
747	break;
748
749	case SOUND_MIXER_PRIVATE1:
750	DPF(4, "SOUND_MIXER_PRIVATE1");
751
752	if (copy_to_user((void *) arg, card->digmix, sizeof(card->digmix)))
753	return -EFAULT;
754
755	return 0;
756
757	break;
758	case SOUND_MIXER_PRIVATE2:
759	DPF(4, "SOUND_MIXER_PRIVATE2");
760
761	if (copy_from_user(card->digmix, (void *) arg, sizeof(card->digmix)))
762	return -EFAULT;
763
764	for (i = 0; i < sizeof(card->digmix) / sizeof(card->digmix[0]); i++)
765	sblive_writeptr(card, FXGPREGBASE + 0x10 + i, 0, (card->digmix[i] & 0x80000000) ? 0 : card->digmix[i]);
766	return 0;
767
768	break;
769
770	default:
771	break;
772	}
773
774	if (_IOC_TYPE(cmd) != 'M' \|\| _IOC_SIZE(cmd) != sizeof(int))
775	return -EINVAL;
776
777	if (_IOC_DIR(cmd) == _IOC_READ) {
778	switch (_IOC_NR(cmd)) {
779	case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
780	DPF(2, "SOUND_MIXER_READ_RECSRC\n");
781	sblive_readac97(card, AC97_RECORDSELECT, &reg);
782	return put_user(recsrc[reg & 7], (int *) arg);
783
784	case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
785	DPF(4, "SOUND_MIXER_READ_DEVMASK\n");
786	return put_user(SOUND_MASK_LINE \| SOUND_MASK_CD \|
787	SOUND_MASK_OGAIN \| SOUND_MASK_LINE1 \|
788	SOUND_MASK_PCM \| SOUND_MASK_VOLUME \|
789	SOUND_MASK_PHONEIN \| SOUND_MASK_MIC \|
790	SOUND_MASK_BASS \| SOUND_MASK_TREBLE \|
791	SOUND_MASK_RECLEV \| SOUND_MASK_SPEAKER \|
792	SOUND_MASK_LINE3 \| SOUND_MASK_DIGITAL1 \|
793	SOUND_MASK_DIGITAL2 \| SOUND_MASK_LINE2, (int *) arg);
794	case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
795	DPF(2, "SOUND_MIXER_READ_RECMASK\n");
796	return put_user(SOUND_MASK_MIC \| SOUND_MASK_CD \|
797	SOUND_MASK_LINE1 \| SOUND_MASK_LINE \|
798	SOUND_MASK_VOLUME \| SOUND_MASK_OGAIN \|
799	SOUND_MASK_PHONEIN \| SOUND_MASK_MONITOR \|
800	SOUND_MASK_PCM, (int *) arg);
801
802	case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
803	DPF(2, "SOUND_MIXER_READ_STEREODEVS\n");
804	return put_user(SOUND_MASK_LINE \| SOUND_MASK_CD \|
805	SOUND_MASK_OGAIN \| SOUND_MASK_LINE1 \|
806	SOUND_MASK_PCM \| SOUND_MASK_VOLUME \|
807	SOUND_MASK_BASS \| SOUND_MASK_TREBLE \|
808	SOUND_MASK_RECLEV \| SOUND_MASK_LINE3 \|
809	SOUND_MASK_DIGITAL1 \| SOUND_MASK_DIGITAL2 \|
810	SOUND_MASK_LINE2, (int *) arg);
811
812	case SOUND_MIXER_CAPS:
813	DPF(2, "SOUND_MIXER_READ_CAPS\n");
814	return put_user(SOUND_CAP_EXCL_INPUT, (int *) arg);
815
816	#ifdef PRIVATE_PCM_VOLUME
817	case SOUND_MIXER_PCM:
818	// needs to be before default: !!
819	{
820	int i;
821
822	for (i = 0; i < MAX_PCM_CHANNELS; i++) {
823	if (sblive_pcm_volume[i].files == current->files) {
824	return put_user((int) sblive_pcm_volume[i].mixer, (int *) arg);
825	}
826	}
827	}
828	#endif
829	default:
830	i = _IOC_NR(cmd);
831	DPD(4, "SOUND_MIXER_READ(%d)\n", i);
832	if (i >= SOUND_MIXER_NRDEVICES)
833	return -EINVAL;
834	#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
835	return mixer_rdch(card, i, (int *) arg);
836	#else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
837	if (!volidx[i])
838	return -EINVAL;
839	return put_user(card->arrwVol[volidx[i]], (int *) arg);
840
841	#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
842	}
843	}
844	/* End of _IOC_READ */
845	if (_IOC_DIR(cmd) != (_IOC_READ \| _IOC_WRITE))
846	return -EINVAL;
847
848	/* _IOC_WRITE */
849	card->modcnt++;
850
851	switch (_IOC_NR(cmd)) {
852	case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
853	DPF(2, "SOUND_MIXER_WRITE_RECSRC\n");
854
855	get_user_ret(val, (int *) arg, -EFAULT);
856	i = hweight32(val);
857	if (i == 0)
858	return 0; /val = mixer_recmask(s); /
859	else if (i > 1) {
860	sblive_readac97(card, AC97_RECORDSELECT, &reg);
861	val &= ~recsrc[reg & 7];
862	}
863
864	for (i = 0; i < 8; i++) {
865	if (val & recsrc[i]) {
866	DPD(2, "Selecting record source to be 0x%04x\n", 0x0101 * i);
867	sblive_writeac97(card, AC97_RECORDSELECT, 0x0101 * i);
868	return 0;
869	}
870	}
871	return 0;
872
873	default:
874	i = _IOC_NR(cmd);
875	DPD(4, "SOUND_MIXER_WRITE(%d)\n", i);
876
877	if (i >= SOUND_MIXER_NRDEVICES)
878	return -EINVAL;
879	get_user_ret(val, (int *) arg, -EFAULT);
880	if (emu10k1_mixer_wrch(card, i, val))
881	return -EINVAL;
882
883	#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
884	return mixer_rdch(card, i, (int *) arg);
885	#else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
886	return put_user(card->arrwVol[volidx[i]], (int *) arg);
887	#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
888
889	}
890	}
891
892	static int emu10k1_mixer_open(struct inode inode, struct file file)
893	{
894	int minor = MINOR(inode->i_rdev);
895	struct emu10k1_card *card;
896	struct list_head *entry;
897
898	DPF(4, "emu10k1_mixer_open()\n");
899
900	list_for_each(entry, &emu10k1_devs) {
901	card = list_entry(entry, struct emu10k1_card, list);
902
903	if (card->mixer_num == minor)
904	break;
905	}
906
907	if (entry == &emu10k1_devs)
908	return -ENODEV;
909
910	MOD_INC_USE_COUNT;
911
912	file->private_data = card;
913	return 0;
914	}
915
916	static int emu10k1_mixer_release(struct inode inode, struct file file)
917	{
918	DPF(3, "emu10k1_mixer_release()\n");
919	MOD_DEC_USE_COUNT;
920	return 0;
921	}
922
923	#ifdef TARGET_OS2
924	//Hello!?! Use standard C!
925	struct file_operations emu10k1_mixer_fops =
926	{
927	&emu10k1_mixer_llseek,
928	NULL, /* read */
929	NULL, /* write */
930	NULL, /* readdir */
931	NULL, /* select/poll */
932	&emu10k1_mixer_ioctl,
933	NULL, /* mmap */
934	&emu10k1_mixer_open,
935	#if LINUX_VERSION_CODE >= 0x020100
936	NULL, /* flush */
937	#endif
938	&emu10k1_mixer_release,
939	NULL, /* fsync */
940	NULL, /* fasync */
941	NULL /* check_media_change */
942	};
943	#else
944	struct file_operations emu10k1_mixer_fops = {
945	llseek:emu10k1_mixer_llseek,
946	ioctl:emu10k1_mixer_ioctl,
947	open:emu10k1_mixer_open,
948	release:emu10k1_mixer_release,
949	};
950	#endif

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