[ALSA] Remove sequencer instrument layer

Remove sequencer instrument layer from the tree.
This mechanism hasn't been used much with the actual devices.  The only
reasonable user was OPL3 loader, and now it was rewritten to use hwdep
instead.  So, let's remove the rest of rotten codes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 0 insertions, 1024 deletions

diff --git a/sound/pci/trident/trident_synth.c b/sound/pci/trident/trident_synth.c
deleted file mode 100644
index 9b7dee84743b..000000000000
--- a/sound/pci/trident/trident_synth.c
+++ /dev/null
@@ -1,1024 +0,0 @@
-/*
- *  Routines for Trident 4DWave NX/DX soundcards - Synthesizer
- *  Copyright (c) by Scott McNab <jedi@tartarus.uwa.edu.au>
- *
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- */
-
-#include <sound/driver.h>
-#include <asm/io.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <sound/core.h>
-#include <sound/trident.h>
-#include <sound/seq_device.h>
-
-MODULE_AUTHOR("Scott McNab <jedi@tartarus.uwa.edu.au>");
-MODULE_DESCRIPTION("Routines for Trident 4DWave NX/DX soundcards - Synthesizer");
-MODULE_LICENSE("GPL");
-
-/* linear to log pan conversion table (4.2 channel attenuation format) */
-static unsigned int pan_table[63] = {
-	7959, 7733, 7514, 7301, 7093, 6892, 6697, 6507, 
-	6322, 6143, 5968, 5799, 5634, 5475, 5319, 5168, 
-	5022, 4879, 4741, 4606, 4475, 4349, 4225, 4105, 
-	3989, 3876, 3766, 3659, 3555, 3454, 3356, 3261, 
-	3168, 3078, 2991, 2906, 2824, 2744, 2666, 2590, 
-	2517, 2445, 2376, 2308, 2243, 2179, 2117, 2057, 
-	1999, 1942, 1887, 1833, 1781, 1731, 1682, 1634, 
-	1588, 1543, 1499, 1456, 1415, 1375, 1336
-};
-
-#define LOG_TABLE_SIZE 386
-
-/* Linear half-attenuation to log conversion table in the format:
- *   {linear volume, logarithmic attenuation equivalent}, ...
- *
- * Provides conversion from a linear half-volume value in the range
- * [0,8192] to a logarithmic attenuation value in the range 0 to 6.02dB.
- * Halving the linear volume is equivalent to an additional 6dB of 
- * logarithmic attenuation. The algorithm used in log_from_linear()
- * therefore uses this table as follows:
- * 
- * - loop and for every time the volume is less than half the maximum 
- *   volume (16384), add another 6dB and halve the maximum value used
- *   for this comparison.
- * - when the volume is greater than half the maximum volume, take
- *   the difference of the volume to half volume (in the range [0,8192])
- *   and look up the log_table[] to find the nearest entry.
- * - take the logarithic component of this entry and add it to the 
- *   resulting attenuation.
- *
- * Thus this routine provides a linear->log conversion for a range of
- * [0,16384] using only 386 table entries
- *
- * Note: although this table stores log attenuation in 8.8 format, values
- * were only calculated for 6 bits fractional precision, since that is
- * the most precision offered by the trident hardware.
- */
-
-static unsigned short log_table[LOG_TABLE_SIZE*2] =
-{
-	4, 0x0604, 19, 0x0600, 34, 0x05fc, 
-	49, 0x05f8, 63, 0x05f4, 78, 0x05f0, 93, 0x05ec, 108, 0x05e8, 
-	123, 0x05e4, 138, 0x05e0, 153, 0x05dc, 168, 0x05d8, 183, 0x05d4, 
-	198, 0x05d0, 213, 0x05cc, 228, 0x05c8, 244, 0x05c4, 259, 0x05c0, 
-	274, 0x05bc, 289, 0x05b8, 304, 0x05b4, 320, 0x05b0, 335, 0x05ac, 
-	350, 0x05a8, 366, 0x05a4, 381, 0x05a0, 397, 0x059c, 412, 0x0598, 
-	428, 0x0594, 443, 0x0590, 459, 0x058c, 474, 0x0588, 490, 0x0584, 
-	506, 0x0580, 521, 0x057c, 537, 0x0578, 553, 0x0574, 568, 0x0570, 
-	584, 0x056c, 600, 0x0568, 616, 0x0564, 632, 0x0560, 647, 0x055c, 
-	663, 0x0558, 679, 0x0554, 695, 0x0550, 711, 0x054c, 727, 0x0548, 
-	743, 0x0544, 759, 0x0540, 776, 0x053c, 792, 0x0538, 808, 0x0534, 
-	824, 0x0530, 840, 0x052c, 857, 0x0528, 873, 0x0524, 889, 0x0520, 
-	906, 0x051c, 922, 0x0518, 938, 0x0514, 955, 0x0510, 971, 0x050c, 
-	988, 0x0508, 1004, 0x0504, 1021, 0x0500, 1037, 0x04fc, 1054, 0x04f8, 
-	1071, 0x04f4, 1087, 0x04f0, 1104, 0x04ec, 1121, 0x04e8, 1138, 0x04e4, 
-	1154, 0x04e0, 1171, 0x04dc, 1188, 0x04d8, 1205, 0x04d4, 1222, 0x04d0, 
-	1239, 0x04cc, 1256, 0x04c8, 1273, 0x04c4, 1290, 0x04c0, 1307, 0x04bc, 
-	1324, 0x04b8, 1341, 0x04b4, 1358, 0x04b0, 1376, 0x04ac, 1393, 0x04a8, 
-	1410, 0x04a4, 1427, 0x04a0, 1445, 0x049c, 1462, 0x0498, 1479, 0x0494, 
-	1497, 0x0490, 1514, 0x048c, 1532, 0x0488, 1549, 0x0484, 1567, 0x0480, 
-	1584, 0x047c, 1602, 0x0478, 1620, 0x0474, 1637, 0x0470, 1655, 0x046c, 
-	1673, 0x0468, 1690, 0x0464, 1708, 0x0460, 1726, 0x045c, 1744, 0x0458, 
-	1762, 0x0454, 1780, 0x0450, 1798, 0x044c, 1816, 0x0448, 1834, 0x0444, 
-	1852, 0x0440, 1870, 0x043c, 1888, 0x0438, 1906, 0x0434, 1924, 0x0430, 
-	1943, 0x042c, 1961, 0x0428, 1979, 0x0424, 1997, 0x0420, 2016, 0x041c, 
-	2034, 0x0418, 2053, 0x0414, 2071, 0x0410, 2089, 0x040c, 2108, 0x0408, 
-	2127, 0x0404, 2145, 0x0400, 2164, 0x03fc, 2182, 0x03f8, 2201, 0x03f4, 
-	2220, 0x03f0, 2239, 0x03ec, 2257, 0x03e8, 2276, 0x03e4, 2295, 0x03e0, 
-	2314, 0x03dc, 2333, 0x03d8, 2352, 0x03d4, 2371, 0x03d0, 2390, 0x03cc, 
-	2409, 0x03c8, 2428, 0x03c4, 2447, 0x03c0, 2466, 0x03bc, 2485, 0x03b8, 
-	2505, 0x03b4, 2524, 0x03b0, 2543, 0x03ac, 2562, 0x03a8, 2582, 0x03a4, 
-	2601, 0x03a0, 2621, 0x039c, 2640, 0x0398, 2660, 0x0394, 2679, 0x0390, 
-	2699, 0x038c, 2718, 0x0388, 2738, 0x0384, 2758, 0x0380, 2777, 0x037c, 
-	2797, 0x0378, 2817, 0x0374, 2837, 0x0370, 2857, 0x036c, 2876, 0x0368, 
-	2896, 0x0364, 2916, 0x0360, 2936, 0x035c, 2956, 0x0358, 2976, 0x0354, 
-	2997, 0x0350, 3017, 0x034c, 3037, 0x0348, 3057, 0x0344, 3077, 0x0340, 
-	3098, 0x033c, 3118, 0x0338, 3138, 0x0334, 3159, 0x0330, 3179, 0x032c, 
-	3200, 0x0328, 3220, 0x0324, 3241, 0x0320, 3261, 0x031c, 3282, 0x0318, 
-	3303, 0x0314, 3323, 0x0310, 3344, 0x030c, 3365, 0x0308, 3386, 0x0304, 
-	3406, 0x0300, 3427, 0x02fc, 3448, 0x02f8, 3469, 0x02f4, 3490, 0x02f0, 
-	3511, 0x02ec, 3532, 0x02e8, 3553, 0x02e4, 3575, 0x02e0, 3596, 0x02dc, 
-	3617, 0x02d8, 3638, 0x02d4, 3660, 0x02d0, 3681, 0x02cc, 3702, 0x02c8, 
-	3724, 0x02c4, 3745, 0x02c0, 3767, 0x02bc, 3788, 0x02b8, 3810, 0x02b4, 
-	3831, 0x02b0, 3853, 0x02ac, 3875, 0x02a8, 3896, 0x02a4, 3918, 0x02a0, 
-	3940, 0x029c, 3962, 0x0298, 3984, 0x0294, 4006, 0x0290, 4028, 0x028c, 
-	4050, 0x0288, 4072, 0x0284, 4094, 0x0280, 4116, 0x027c, 4138, 0x0278, 
-	4160, 0x0274, 4182, 0x0270, 4205, 0x026c, 4227, 0x0268, 4249, 0x0264, 
-	4272, 0x0260, 4294, 0x025c, 4317, 0x0258, 4339, 0x0254, 4362, 0x0250, 
-	4384, 0x024c, 4407, 0x0248, 4430, 0x0244, 4453, 0x0240, 4475, 0x023c, 
-	4498, 0x0238, 4521, 0x0234, 4544, 0x0230, 4567, 0x022c, 4590, 0x0228, 
-	4613, 0x0224, 4636, 0x0220, 4659, 0x021c, 4682, 0x0218, 4705, 0x0214, 
-	4728, 0x0210, 4752, 0x020c, 4775, 0x0208, 4798, 0x0204, 4822, 0x0200, 
-	4845, 0x01fc, 4869, 0x01f8, 4892, 0x01f4, 4916, 0x01f0, 4939, 0x01ec, 
-	4963, 0x01e8, 4987, 0x01e4, 5010, 0x01e0, 5034, 0x01dc, 5058, 0x01d8, 
-	5082, 0x01d4, 5106, 0x01d0, 5130, 0x01cc, 5154, 0x01c8, 5178, 0x01c4, 
-	5202, 0x01c0, 5226, 0x01bc, 5250, 0x01b8, 5274, 0x01b4, 5299, 0x01b0, 
-	5323, 0x01ac, 5347, 0x01a8, 5372, 0x01a4, 5396, 0x01a0, 5420, 0x019c, 
-	5445, 0x0198, 5469, 0x0194, 5494, 0x0190, 5519, 0x018c, 5543, 0x0188, 
-	5568, 0x0184, 5593, 0x0180, 5618, 0x017c, 5643, 0x0178, 5668, 0x0174, 
-	5692, 0x0170, 5717, 0x016c, 5743, 0x0168, 5768, 0x0164, 5793, 0x0160, 
-	5818, 0x015c, 5843, 0x0158, 5868, 0x0154, 5894, 0x0150, 5919, 0x014c, 
-	5945, 0x0148, 5970, 0x0144, 5995, 0x0140, 6021, 0x013c, 6047, 0x0138, 
-	6072, 0x0134, 6098, 0x0130, 6124, 0x012c, 6149, 0x0128, 6175, 0x0124, 
-	6201, 0x0120, 6227, 0x011c, 6253, 0x0118, 6279, 0x0114, 6305, 0x0110, 
-	6331, 0x010c, 6357, 0x0108, 6384, 0x0104, 6410, 0x0100, 6436, 0x00fc, 
-	6462, 0x00f8, 6489, 0x00f4, 6515, 0x00f0, 6542, 0x00ec, 6568, 0x00e8, 
-	6595, 0x00e4, 6621, 0x00e0, 6648, 0x00dc, 6675, 0x00d8, 6702, 0x00d4, 
-	6728, 0x00d0, 6755, 0x00cc, 6782, 0x00c8, 6809, 0x00c4, 6836, 0x00c0, 
-	6863, 0x00bc, 6890, 0x00b8, 6917, 0x00b4, 6945, 0x00b0, 6972, 0x00ac, 
-	6999, 0x00a8, 7027, 0x00a4, 7054, 0x00a0, 7081, 0x009c, 7109, 0x0098, 
-	7136, 0x0094, 7164, 0x0090, 7192, 0x008c, 7219, 0x0088, 7247, 0x0084, 
-	7275, 0x0080, 7303, 0x007c, 7331, 0x0078, 7359, 0x0074, 7387, 0x0070, 
-	7415, 0x006c, 7443, 0x0068, 7471, 0x0064, 7499, 0x0060, 7527, 0x005c, 
-	7556, 0x0058, 7584, 0x0054, 7613, 0x0050, 7641, 0x004c, 7669, 0x0048, 
-	7698, 0x0044, 7727, 0x0040, 7755, 0x003c, 7784, 0x0038, 7813, 0x0034, 
-	7842, 0x0030, 7870, 0x002c, 7899, 0x0028, 7928, 0x0024, 7957, 0x0020, 
-	7986, 0x001c, 8016, 0x0018, 8045, 0x0014, 8074, 0x0010, 8103, 0x000c, 
-	8133, 0x0008, 8162, 0x0004, 8192, 0x0000
-};
-
-static unsigned short lookup_volume_table( unsigned short value )
-{
-	/* This code is an optimised version of:
-	 *   int i = 0;
-	 *   while( volume_table[i*2] < value )
-	 *       i++;
-	 *   return volume_table[i*2+1];
-	 */
-	unsigned short *ptr = log_table;
-	while( *ptr < value )
-		ptr += 2;
-	return *(ptr+1);
-}
-
-/* this function calculates a 8.8 fixed point logarithmic attenuation
- * value from a linear volume value in the range 0 to 16384 */
-static unsigned short log_from_linear( unsigned short value )
-{
-	if (value >= 16384)
-		return 0x0000;
-	if (value) {
-		unsigned short result = 0;
-		int v, c;
-		for( c = 0, v = 8192; c < 14; c++, v >>= 1 ) {
-			if( value >= v ) {
-				result += lookup_volume_table( (value - v) << c );
-				return result;
-			}
-			result += 0x0605;	/* 6.0205 (result of -20*log10(0.5)) */
-		}
-	}
-	return 0xffff;
-}
-
-/*
- * Sample handling operations
- */
-
-static void sample_start(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_position_t position);
-static void sample_stop(struct snd_trident * trident, struct snd_trident_voice * voice, int mode);
-static void sample_freq(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_frequency_t freq);
-static void sample_volume(struct snd_trident * trident, struct snd_trident_voice * voice, struct snd_seq_ev_volume * volume);
-static void sample_loop(struct snd_trident * trident, struct snd_trident_voice * voice, struct snd_seq_ev_loop * loop);
-static void sample_pos(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_position_t position);
-static void sample_private1(struct snd_trident * trident, struct snd_trident_voice * voice, unsigned char *data);
-
-static struct snd_trident_sample_ops sample_ops =
-{
-	sample_start,
-	sample_stop,
-	sample_freq,
-	sample_volume,
-	sample_loop,
-	sample_pos,
-	sample_private1
-};
-
-static void snd_trident_simple_init(struct snd_trident_voice * voice)
-{
-	//voice->handler_wave = interrupt_wave;
-	//voice->handler_volume = interrupt_volume;
-	//voice->handler_effect = interrupt_effect;
-	//voice->volume_change = NULL;
-	voice->sample_ops = &sample_ops;
-}
-
-static void sample_start(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_position_t position)
-{
-	struct simple_instrument *simple;
-	struct snd_seq_kinstr *instr;
-	unsigned long flags;
-	unsigned int loop_start, loop_end, sample_start, sample_end, start_offset;
-	unsigned int value;
-	unsigned int shift = 0;
-
-	instr = snd_seq_instr_find(trident->synth.ilist, &voice->instr, 0, 1);
-	if (instr == NULL)
-		return;
-	voice->instr = instr->instr;	/* copy ID to speedup aliases */
-	simple = KINSTR_DATA(instr);
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-
-	if (trident->device == TRIDENT_DEVICE_ID_SI7018)
-		voice->GVSel = 1;	/* route to Wave volume */
-
-	voice->CTRL = 0;
-	voice->Alpha = 0;
-	voice->FMS = 0;
-
-	loop_start = simple->loop_start >> 4;
-	loop_end = simple->loop_end >> 4;
-	sample_start = (simple->start + position) >> 4;
-	if( sample_start >= simple->size )
-		sample_start = simple->start >> 4;
-	sample_end = simple->size;
-	start_offset = position >> 4;
-
-	if (simple->format & SIMPLE_WAVE_16BIT) {
-		voice->CTRL |= 8;
-		shift++;
-	}
-	if (simple->format & SIMPLE_WAVE_STEREO) {
-		voice->CTRL |= 4;
-		shift++;
-	}
-	if (!(simple->format & SIMPLE_WAVE_UNSIGNED))
-		voice->CTRL |= 2;
-
-	voice->LBA = simple->address.memory;
-
-	if (simple->format & SIMPLE_WAVE_LOOP) {
-		voice->CTRL |= 1;
-		voice->LBA += loop_start << shift;
-		if( start_offset >= loop_start ) {
-			voice->CSO = start_offset - loop_start;
-			voice->negCSO = 0;
-		} else {
-			voice->CSO = loop_start - start_offset;
-			voice->negCSO = 1;
-		}
-		voice->ESO = loop_end - loop_start - 1;
-	} else {
-		voice->LBA += start_offset << shift;
-		voice->CSO = sample_start;
-		voice->ESO = sample_end - 1;
-		voice->negCSO = 0;
-	}
-
-	if (voice->flags & SNDRV_TRIDENT_VFLG_RUNNING) {
-		snd_trident_stop_voice(trident, voice->number);
-		voice->flags &= ~SNDRV_TRIDENT_VFLG_RUNNING;
-	}
-
-	/* set CSO sign */
-	value = inl(TRID_REG(trident, T4D_SIGN_CSO_A));
-	if( voice->negCSO ) {
-		value |= 1 << (voice->number&31);
-	} else {
-		value &= ~(1 << (voice->number&31));
-	}
-	outl(value,TRID_REG(trident, T4D_SIGN_CSO_A));
-
-	voice->Attribute = 0;	
-	snd_trident_write_voice_regs(trident, voice);
-	snd_trident_start_voice(trident, voice->number);
-	voice->flags |= SNDRV_TRIDENT_VFLG_RUNNING;
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-	snd_seq_instr_free_use(trident->synth.ilist, instr);
-}
-
-static void sample_stop(struct snd_trident * trident, struct snd_trident_voice * voice, int mode)
-{
-	unsigned long flags;
-
-	if (!(voice->flags & SNDRV_TRIDENT_VFLG_RUNNING))
-		return;
-
-	switch (mode) {
-	default:
-		spin_lock_irqsave(&trident->reg_lock, flags);
-		snd_trident_stop_voice(trident, voice->number);
-		voice->flags &= ~SNDRV_TRIDENT_VFLG_RUNNING;
-		spin_unlock_irqrestore(&trident->reg_lock, flags);
-		break;
-	case SAMPLE_STOP_LOOP:	/* disable loop only */
-		voice->CTRL &= ~1;
-		spin_lock_irqsave(&trident->reg_lock, flags);
-		outb((unsigned char) voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
-		outw((((voice->CTRL << 12) | (voice->EC & 0x0fff)) & 0xffff), CH_GVSEL_PAN_VOL_CTRL_EC);
-		spin_unlock_irqrestore(&trident->reg_lock, flags);
-		break;
-	}
-}
-
-static void sample_freq(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_frequency_t freq)
-{
-	unsigned long flags;
-	freq >>= 4;
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-	if (freq == 44100)
-		voice->Delta = 0xeb3;
-	else if (freq == 8000)
-		voice->Delta = 0x2ab;
-	else if (freq == 48000)
-		voice->Delta = 0x1000;
-	else
-		voice->Delta = (((freq << 12) + freq) / 48000) & 0x0000ffff;
-
-	outb((unsigned char) voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
-	if (trident->device == TRIDENT_DEVICE_ID_NX) {
-		outb((unsigned char) voice->Delta, TRID_REG(trident, CH_NX_DELTA_CSO + 3));
-		outb((unsigned char) (voice->Delta >> 8), TRID_REG(trident, CH_NX_DELTA_ESO + 3));
-	} else {
-		outw((unsigned short) voice->Delta, TRID_REG(trident, CH_DX_ESO_DELTA));
-	}
-
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-}
-
-static void sample_volume(struct snd_trident * trident, struct snd_trident_voice * voice, struct snd_seq_ev_volume * volume)
-{
-	unsigned long flags;
-	unsigned short value;
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-	voice->GVSel = 0;	/* use global music volume */
-	voice->FMC = 0x03;	/* fixme: can we do something useful with FMC? */
-	if (volume->volume >= 0) {
-		volume->volume &= 0x3fff;
-		/* linear volume -> logarithmic attenuation conversion
-		 * uses EC register for greater resolution (6.6 bits) than Vol register (5.3 bits)
-		 * Vol register used when additional attenuation is required */
-		voice->RVol = 0;
-		voice->CVol = 0;
-		value = log_from_linear( volume->volume );
-		voice->Vol = 0;
-		voice->EC = (value & 0x3fff) >> 2;
-		if (value > 0x3fff) {
-			voice->EC |= 0xfc0;
-			if (value < 0x5f00 )
-				voice->Vol = ((value >> 8) - 0x3f) << 5;
-			else {
-				voice->Vol = 0x3ff;
-				voice->EC = 0xfff;
-			}
-		}
-	}
-	if (volume->lr >= 0) {
-		volume->lr &= 0x3fff;
-		/* approximate linear pan by attenuating channels */
-		if (volume->lr >= 0x2000) {	/* attenuate left (pan right) */
-			value = 0x3fff - volume->lr;
-			for (voice->Pan = 0; voice->Pan < 63; voice->Pan++ ) 
-				if (value >= pan_table[voice->Pan] )
-					break;
-		} else {			/* attenuate right (pan left) */
-			for (voice->Pan = 0; voice->Pan < 63; voice->Pan++ ) 
-				if ((unsigned int)volume->lr >= pan_table[voice->Pan] )
-					break;
-			voice->Pan |= 0x40;
-		}
-	}
-	outb((unsigned char) voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
-	outl((voice->GVSel << 31) | ((voice->Pan & 0x0000007f) << 24) |
-		 ((voice->Vol & 0x000000ff) << 16) | ((voice->CTRL & 0x0000000f) << 12) |
-		 (voice->EC & 0x00000fff), TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
-	value = ((voice->FMC & 0x03) << 14) | ((voice->RVol & 0x7f) << 7) | (voice->CVol & 0x7f);
-	outw(value, TRID_REG(trident, CH_DX_FMC_RVOL_CVOL));
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-}
-
-static void sample_loop(struct snd_trident * trident, struct snd_trident_voice * voice, struct snd_seq_ev_loop * loop)
-{
-	unsigned long flags;
-	struct simple_instrument *simple;
-	struct snd_seq_kinstr *instr;
-	unsigned int loop_start, loop_end;
-
-	instr = snd_seq_instr_find(trident->synth.ilist, &voice->instr, 0, 1);
-	if (instr == NULL)
-		return;
-	voice->instr = instr->instr;	/* copy ID to speedup aliases */
-	simple = KINSTR_DATA(instr);
-
-	loop_start = loop->start >> 4;
-	loop_end = loop->end >> 4;
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-
-	voice->LBA = simple->address.memory + loop_start;
-	voice->CSO = 0;
-	voice->ESO = loop_end - loop_start - 1;
-
-	outb((unsigned char) voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
-	outb((voice->LBA >> 16), TRID_REG(trident, CH_LBA + 2));
-	outw((voice->LBA & 0xffff), TRID_REG(trident, CH_LBA));
-	if (trident->device == TRIDENT_DEVICE_ID_NX) {
-		outb((voice->ESO >> 16), TRID_REG(trident, CH_NX_DELTA_ESO + 2));
-		outw((voice->ESO & 0xffff), TRID_REG(trident, CH_NX_DELTA_ESO));
-		outb((voice->CSO >> 16), TRID_REG(trident, CH_NX_DELTA_CSO + 2));
-		outw((voice->CSO & 0xffff), TRID_REG(trident, CH_NX_DELTA_CSO));
-	} else {
-		outw((voice->ESO & 0xffff), TRID_REG(trident, CH_DX_ESO_DELTA + 2));
-		outw((voice->CSO & 0xffff), TRID_REG(trident, CH_DX_CSO_ALPHA_FMS + 2));
-	}
-
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-	snd_seq_instr_free_use(trident->synth.ilist, instr);
-}
-
-static void sample_pos(struct snd_trident * trident, struct snd_trident_voice * voice, snd_seq_position_t position)
-{
-	unsigned long flags;
-	struct simple_instrument *simple;
-	struct snd_seq_kinstr *instr;
-	unsigned int value;
-
-	instr = snd_seq_instr_find(trident->synth.ilist, &voice->instr, 0, 1);
-	if (instr == NULL)
-		return;
-	voice->instr = instr->instr;	/* copy ID to speedup aliases */
-	simple = KINSTR_DATA(instr);
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-
-	if (simple->format & SIMPLE_WAVE_LOOP) {
-		if( position >= simple->loop_start ) {
-			voice->CSO = (position - simple->loop_start) >> 4;
-			voice->negCSO = 0;
-		} else {
-			voice->CSO = (simple->loop_start - position) >> 4;
-			voice->negCSO = 1;
-		}
-	} else {
-		voice->CSO = position >> 4;
-		voice->negCSO = 0;
-	}
-
-	/* set CSO sign */
-	value = inl(TRID_REG(trident, T4D_SIGN_CSO_A));
-	if( voice->negCSO ) {
-		value |= 1 << (voice->number&31);
-	} else {
-		value &= ~(1 << (voice->number&31));
-	}
-	outl(value,TRID_REG(trident, T4D_SIGN_CSO_A));
-	
-
-	outb((unsigned char) voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
-	if (trident->device == TRIDENT_DEVICE_ID_NX) {
-		outw((voice->CSO & 0xffff), TRID_REG(trident, CH_NX_DELTA_CSO));
-		outb((voice->CSO >> 16), TRID_REG(trident, CH_NX_DELTA_CSO + 2));
-	} else {
-		outw((voice->CSO & 0xffff), TRID_REG(trident, CH_DX_CSO_ALPHA_FMS) + 2);
-	}
-
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-	snd_seq_instr_free_use(trident->synth.ilist, instr);
-}
-
-static void sample_private1(struct snd_trident * trident, struct snd_trident_voice * voice, unsigned char *data)
-{
-}
-
-/*
- * Memory management / sample loading
- */
-
-static int snd_trident_simple_put_sample(void *private_data,
-					 struct simple_instrument * instr,
-					 char __user *data, long len, int atomic)
-{
-	struct snd_trident *trident = private_data;
-	int size = instr->size;
-	int shift = 0;
-
-	if (instr->format & SIMPLE_WAVE_BACKWARD ||
-	    instr->format & SIMPLE_WAVE_BIDIR ||
-	    instr->format & SIMPLE_WAVE_ULAW) 
-		return -EINVAL;	/* not supported */
-
-	if (instr->format & SIMPLE_WAVE_16BIT)
-		shift++;
-	if (instr->format & SIMPLE_WAVE_STEREO)
-		shift++;
-	size <<= shift;
-
-	if (trident->synth.current_size + size > trident->synth.max_size)
-		return -ENOMEM;
-
-	if (!access_ok(VERIFY_READ, data, size))
-		return -EFAULT;
-
-	if (trident->tlb.entries) {
-		struct snd_util_memblk *memblk;
-		memblk = snd_trident_synth_alloc(trident, size); 
-		if (memblk == NULL)
-			return -ENOMEM;
-		if (snd_trident_synth_copy_from_user(trident, memblk, 0, data, size) ) {
-			snd_trident_synth_free(trident, memblk);
-			return -EFAULT;
-		}
-		instr->address.ptr = (unsigned char*)memblk;
-		instr->address.memory = memblk->offset;
-	} else {
-		struct snd_dma_buffer dmab;
-		if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(trident->pci),
-					size, &dmab) < 0)
-			return -ENOMEM;
-
-		if (copy_from_user(dmab.area, data, size)) {
-			snd_dma_free_pages(&dmab);
-			return -EFAULT;
-		}
-		instr->address.ptr = dmab.area;
-		instr->address.memory = dmab.addr;
-	}
-
-	trident->synth.current_size += size;
-	return 0;
-}
-
-static int snd_trident_simple_get_sample(void *private_data,
-					 struct simple_instrument * instr,
-					 char __user *data, long len, int atomic)
-{
-	//struct snd_trident *trident = private_data;
-	int size = instr->size;
-	int shift = 0;
-
-	if (instr->format & SIMPLE_WAVE_16BIT)
-		shift++;
-	if (instr->format & SIMPLE_WAVE_STEREO)
-		shift++;
-	size <<= shift;
-
-	if (!access_ok(VERIFY_WRITE, data, size))
-		return -EFAULT;
-
-	/* FIXME: not implemented yet */
-
-	return -EBUSY;
-}
-
-static int snd_trident_simple_remove_sample(void *private_data,
-					    struct simple_instrument * instr,
-					    int atomic)
-{
-	struct snd_trident *trident = private_data;
-	int size = instr->size;
-
-	if (instr->format & SIMPLE_WAVE_16BIT)
-		size <<= 1;
-	if (instr->format & SIMPLE_WAVE_STEREO)
-		size <<= 1;
-
-	if (trident->tlb.entries) {
-		struct snd_util_memblk *memblk = (struct snd_util_memblk *)instr->address.ptr;
-		if (memblk)
-			snd_trident_synth_free(trident, memblk);
-		else
-			return -EFAULT;
-	} else {
-		struct snd_dma_buffer dmab;
-		dmab.dev.type = SNDRV_DMA_TYPE_DEV;
-		dmab.dev.dev = snd_dma_pci_data(trident->pci);
-		dmab.area = instr->address.ptr;
-		dmab.addr = instr->address.memory;
-		dmab.bytes = size;
-		snd_dma_free_pages(&dmab);
-	}
-
-	trident->synth.current_size -= size;
-	if (trident->synth.current_size < 0)	/* shouldn't need this check... */
-		trident->synth.current_size = 0;
-
-	return 0;
-}
-
-static void select_instrument(struct snd_trident * trident, struct snd_trident_voice * v)
-{
-	struct snd_seq_kinstr *instr;
-	instr = snd_seq_instr_find(trident->synth.ilist, &v->instr, 0, 1);
-	if (instr != NULL) {
-		if (instr->ops) {
-			if (!strcmp(instr->ops->instr_type, SNDRV_SEQ_INSTR_ID_SIMPLE))
-				snd_trident_simple_init(v);
-		}
-		snd_seq_instr_free_use(trident->synth.ilist, instr);
-	}
-}
-
-/*
-
- */
-
-static void event_sample(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_stop)
-		v->sample_ops->sample_stop(p->trident, v, SAMPLE_STOP_IMMEDIATELY);
-	v->instr.std = ev->data.sample.param.sample.std;
-	if (v->instr.std & 0xff000000) {	/* private instrument */
-		v->instr.std &= 0x00ffffff;
-		v->instr.std |= (unsigned int)ev->source.client << 24;
-	}
-	v->instr.bank = ev->data.sample.param.sample.bank;
-	v->instr.prg = ev->data.sample.param.sample.prg;
-	select_instrument(p->trident, v);
-}
-
-static void event_cluster(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_stop)
-		v->sample_ops->sample_stop(p->trident, v, SAMPLE_STOP_IMMEDIATELY);
-	v->instr.cluster = ev->data.sample.param.cluster.cluster;
-	select_instrument(p->trident, v);
-}
-
-static void event_start(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_start)
-		v->sample_ops->sample_start(p->trident, v, ev->data.sample.param.position);
-}
-
-static void event_stop(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_stop)
-		v->sample_ops->sample_stop(p->trident, v, ev->data.sample.param.stop_mode);
-}
-
-static void event_freq(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_freq)
-		v->sample_ops->sample_freq(p->trident, v, ev->data.sample.param.frequency);
-}
-
-static void event_volume(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_volume)
-		v->sample_ops->sample_volume(p->trident, v, &ev->data.sample.param.volume);
-}
-
-static void event_loop(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_loop)
-		v->sample_ops->sample_loop(p->trident, v, &ev->data.sample.param.loop);
-}
-
-static void event_position(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_pos)
-		v->sample_ops->sample_pos(p->trident, v, ev->data.sample.param.position);
-}
-
-static void event_private1(struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v)
-{
-	if (v->sample_ops && v->sample_ops->sample_private1)
-		v->sample_ops->sample_private1(p->trident, v, (unsigned char *) &ev->data.sample.param.raw8);
-}
-
-typedef void (trident_sample_event_handler_t) (struct snd_seq_event * ev, struct snd_trident_port * p, struct snd_trident_voice * v);
-
-static trident_sample_event_handler_t *trident_sample_event_handlers[9] =
-{
-	event_sample,
-	event_cluster,
-	event_start,
-	event_stop,
-	event_freq,
-	event_volume,
-	event_loop,
-	event_position,
-	event_private1
-};
-
-static void snd_trident_sample_event(struct snd_seq_event * ev, struct snd_trident_port * p)
-{
-	int idx, voice;
-	struct snd_trident *trident = p->trident;
-	struct snd_trident_voice *v;
-	unsigned long flags;
-
-	idx = ev->type - SNDRV_SEQ_EVENT_SAMPLE;
-	if (idx < 0 || idx > 8)
-		return;
-	for (voice = 0; voice < 64; voice++) {
-		v = &trident->synth.voices[voice];
-		if (v->use && v->client == ev->source.client &&
-		    v->port == ev->source.port &&
-		    v->index == ev->data.sample.channel) {
-			spin_lock_irqsave(&trident->event_lock, flags);
-			trident_sample_event_handlers[idx] (ev, p, v);
-			spin_unlock_irqrestore(&trident->event_lock, flags);
-			return;
-		}
-	}
-}
-
-/*
-
- */
-
-static void snd_trident_synth_free_voices(struct snd_trident * trident, int client, int port)
-{
-	int idx;
-	struct snd_trident_voice *voice;
-
-	for (idx = 0; idx < 32; idx++) {
-		voice = &trident->synth.voices[idx];
-		if (voice->use && voice->client == client && voice->port == port)
-			snd_trident_free_voice(trident, voice);
-	}
-}
-
-static int snd_trident_synth_use(void *private_data, struct snd_seq_port_subscribe * info)
-{
-	struct snd_trident_port *port = private_data;
-	struct snd_trident *trident = port->trident;
-	struct snd_trident_voice *voice;
-	unsigned int idx;
-	unsigned long flags;
-
-	if (info->voices > 32)
-		return -EINVAL;
-	spin_lock_irqsave(&trident->reg_lock, flags);
-	for (idx = 0; idx < info->voices; idx++) {
-		voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_SYNTH, info->sender.client, info->sender.port);
-		if (voice == NULL) {
-			snd_trident_synth_free_voices(trident, info->sender.client, info->sender.port);
-			spin_unlock_irqrestore(&trident->reg_lock, flags);
-			return -EBUSY;
-		}
-		voice->index = idx;
-		voice->Vol = 0x3ff;
-		voice->EC = 0x0fff;
-	}
-#if 0
-	for (idx = 0; idx < info->midi_voices; idx++) {
-		port->midi_has_voices = 1;
-		voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_MIDI, info->sender.client, info->sender.port);
-		if (voice == NULL) {
-			snd_trident_synth_free_voices(trident, info->sender.client, info->sender.port);
-			spin_unlock_irqrestore(&trident->reg_lock, flags);
-			return -EBUSY;
-		}
-		voice->Vol = 0x3ff;
-		voice->EC = 0x0fff;
-	}
-#endif
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-	return 0;
-}
-
-static int snd_trident_synth_unuse(void *private_data, struct snd_seq_port_subscribe * info)
-{
-	struct snd_trident_port *port = private_data;
-	struct snd_trident *trident = port->trident;
-	unsigned long flags;
-
-	spin_lock_irqsave(&trident->reg_lock, flags);
-	snd_trident_synth_free_voices(trident, info->sender.client, info->sender.port);
-	spin_unlock_irqrestore(&trident->reg_lock, flags);
-	return 0;
-}
-
-/*
-
- */
-
-static void snd_trident_synth_free_private_instruments(struct snd_trident_port * p, int client)
-{
-	struct snd_seq_instr_header ifree;
-
-	memset(&ifree, 0, sizeof(ifree));
-	ifree.cmd = SNDRV_SEQ_INSTR_FREE_CMD_PRIVATE;
-	snd_seq_instr_list_free_cond(p->trident->synth.ilist, &ifree, client, 0);
-}
-
-static int snd_trident_synth_event_input(struct snd_seq_event * ev, int direct, void *private_data, int atomic, int hop)
-{
-	struct snd_trident_port *p = (struct snd_trident_port *) private_data;
-
-	if (p == NULL)
-		return -EINVAL;
-	if (ev->type >= SNDRV_SEQ_EVENT_SAMPLE &&
-	    ev->type <= SNDRV_SEQ_EVENT_SAMPLE_PRIVATE1) {
-		snd_trident_sample_event(ev, p);
-		return 0;
-	}
-	if (ev->source.client == SNDRV_SEQ_CLIENT_SYSTEM &&
-	    ev->source.port == SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE) {
-		if (ev->type == SNDRV_SEQ_EVENT_CLIENT_EXIT) {
-			snd_trident_synth_free_private_instruments(p, ev->data.addr.client);
-			return 0;
-		}
-	}
-	if (direct) {
-		if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN) {
-			snd_seq_instr_event(&p->trident->synth.simple_ops.kops,
-					    p->trident->synth.ilist, ev,
-					    p->trident->synth.seq_client, atomic, hop);
-			return 0;
-		}
-	}
-	return 0;
-}
-
-static void snd_trident_synth_instr_notify(void *private_data,
-					   struct snd_seq_kinstr * instr,
-					   int what)
-{
-	int idx;
-	struct snd_trident *trident = private_data;
-	struct snd_trident_voice *pvoice;
-	unsigned long flags;
-
-	spin_lock_irqsave(&trident->event_lock, flags);
-	for (idx = 0; idx < 64; idx++) {
-		pvoice = &trident->synth.voices[idx];
-		if (pvoice->use && !memcmp(&pvoice->instr, &instr->instr, sizeof(pvoice->instr))) {
-			if (pvoice->sample_ops && pvoice->sample_ops->sample_stop) {
-				pvoice->sample_ops->sample_stop(trident, pvoice, SAMPLE_STOP_IMMEDIATELY);
-			} else {
-				snd_trident_stop_voice(trident, pvoice->number);
-				pvoice->flags &= ~SNDRV_TRIDENT_VFLG_RUNNING;
-			}
-		}
-	}
-	spin_unlock_irqrestore(&trident->event_lock, flags);
-}
-
-/*
-
- */
-
-static void snd_trident_synth_free_port(void *private_data)
-{
-	struct snd_trident_port *p = (struct snd_trident_port *) private_data;
-
-	if (p)
-		snd_midi_channel_free_set(p->chset);
-}
-
-static int snd_trident_synth_create_port(struct snd_trident * trident, int idx)
-{
-	struct snd_trident_port *p;
-	struct snd_seq_port_callback callbacks;
-	char name[32];
-	char *str;
-	int result;
-
-	p = &trident->synth.seq_ports[idx];
-	p->chset = snd_midi_channel_alloc_set(16);
-	if (p->chset == NULL)
-		return -ENOMEM;
-	p->chset->private_data = p;
-	p->trident = trident;
-	p->client = trident->synth.seq_client;
-
-	memset(&callbacks, 0, sizeof(callbacks));
-	callbacks.owner = THIS_MODULE;
-	callbacks.use = snd_trident_synth_use;
-	callbacks.unuse = snd_trident_synth_unuse;
-	callbacks.event_input = snd_trident_synth_event_input;
-	callbacks.private_free = snd_trident_synth_free_port;
-	callbacks.private_data = p;
-
-	str = "???";
-	switch (trident->device) {
-	case TRIDENT_DEVICE_ID_DX:	str = "Trident 4DWave-DX"; break;
-	case TRIDENT_DEVICE_ID_NX:	str = "Trident 4DWave-NX"; break;
-	case TRIDENT_DEVICE_ID_SI7018:	str = "SiS 7018"; break;
-	}
-	sprintf(name, "%s port %i", str, idx);
-	p->chset->port = snd_seq_event_port_attach(trident->synth.seq_client,
-						   &callbacks,
-						   SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
-						   SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE |
-						   SNDRV_SEQ_PORT_TYPE_SYNTH |
-						   SNDRV_SEQ_PORT_TYPE_HARDWARE |
-						   SNDRV_SEQ_PORT_TYPE_SYNTHESIZER,
-						   16, 0,
-						   name);
-	if (p->chset->port < 0) {
-		result = p->chset->port;
-		snd_trident_synth_free_port(p);
-		return result;
-	}
-	p->port = p->chset->port;
-	return 0;
-}
-
-/*
-
- */
-
-static int snd_trident_synth_new_device(struct snd_seq_device *dev)
-{
-	struct snd_trident *trident;
-	int client, i;
-	struct snd_seq_port_subscribe sub;
-	struct snd_simple_ops *simpleops;
-	char *str;
-
-	trident = *(struct snd_trident **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
-	if (trident == NULL)
-		return -EINVAL;
-
-	trident->synth.seq_client = -1;
-
-	/* allocate new client */
-	str = "???";
-	switch (trident->device) {
-	case TRIDENT_DEVICE_ID_DX:	str = "Trident 4DWave-DX"; break;
-	case TRIDENT_DEVICE_ID_NX:	str = "Trident 4DWave-NX"; break;
-	case TRIDENT_DEVICE_ID_SI7018:	str = "SiS 7018"; break;
-	}
-	client = trident->synth.seq_client =
-		snd_seq_create_kernel_client(trident->card, 1, str);
-	if (client < 0)
-		return client;
-
-	for (i = 0; i < 4; i++)
-		snd_trident_synth_create_port(trident, i);
-
-	trident->synth.ilist = snd_seq_instr_list_new();
-	if (trident->synth.ilist == NULL) {
-		snd_seq_delete_kernel_client(client);
-		trident->synth.seq_client = -1;
-		return -ENOMEM;
-	}
-	trident->synth.ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT;
-
-	simpleops = &trident->synth.simple_ops;
-	snd_seq_simple_init(simpleops, trident, NULL);
-	simpleops->put_sample = snd_trident_simple_put_sample;
-	simpleops->get_sample = snd_trident_simple_get_sample;
-	simpleops->remove_sample = snd_trident_simple_remove_sample;
-	simpleops->notify = snd_trident_synth_instr_notify;
-
-	memset(&sub, 0, sizeof(sub));
-	sub.sender.client = SNDRV_SEQ_CLIENT_SYSTEM;
-	sub.sender.port = SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE;
-	sub.dest.client = client;
-	sub.dest.port = 0;
-	snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT, &sub);
-
-	return 0;
-}
-
-static int snd_trident_synth_delete_device(struct snd_seq_device *dev)
-{
-	struct snd_trident *trident;
-
-	trident = *(struct snd_trident **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
-	if (trident == NULL)
-		return -EINVAL;
-
-	if (trident->synth.seq_client >= 0) {
-		snd_seq_delete_kernel_client(trident->synth.seq_client);
-		trident->synth.seq_client = -1;
-	}
-	if (trident->synth.ilist)
-		snd_seq_instr_list_free(&trident->synth.ilist);
-	return 0;
-}
-
-static int __init alsa_trident_synth_init(void)
-{
-	static struct snd_seq_dev_ops ops =
-	{
-		snd_trident_synth_new_device,
-		snd_trident_synth_delete_device
-	};
-
-	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_TRIDENT, &ops,
-					      sizeof(struct snd_trident *));
-}
-
-static void __exit alsa_trident_synth_exit(void)
-{
-	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_TRIDENT);
-}
-
-module_init(alsa_trident_synth_init)
-module_exit(alsa_trident_synth_exit)