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linux/sound/pci/au88x0/au88x0_synth.c
Adrian Bunk 51c80cb65f [ALSA] au88x0_synth.c bugfix 
This patch fixes the code in vortex_wt_SetFrequency() to what seems to
have been intended.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16 16:49:23 +02:00

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/*
* 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 Library 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.
*/
/*
* Someday its supposed to make use of the WT DMA engine
* for a Wavetable synthesizer.
*/
#include "au88x0.h"
#include "au88x0_wt.h"
static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en);
static void vortex_connection_adb_mixin(vortex_t * vortex, int en,
unsigned char channel,
unsigned char source,
unsigned char mixin);
static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
unsigned char mixin,
unsigned char mix, int a);
static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j);
static int vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
u32 val);
/* WT */
/* Put 2 WT channels together for one stereo interlaced channel. */
static void vortex_wt_setstereo(vortex_t * vortex, u32 wt, u32 stereo)
{
int temp;
//temp = hwread(vortex->mmio, 0x80 + ((wt >> 0x5)<< 0xf) + (((wt & 0x1f) >> 1) << 2));
temp = hwread(vortex->mmio, WT_STEREO(wt));
temp = (temp & 0xfe) | (stereo & 1);
//hwwrite(vortex->mmio, 0x80 + ((wt >> 0x5)<< 0xf) + (((wt & 0x1f) >> 1) << 2), temp);
hwwrite(vortex->mmio, WT_STEREO(wt), temp);
}
/* Join to mixdown route. */
static void vortex_wt_setdsout(vortex_t * vortex, u32 wt, int en)
{
int temp;
/* There is one DSREG register for each bank (32 voices each). */
temp = hwread(vortex->mmio, WT_DSREG((wt >= 0x20) ? 1 : 0));
if (en)
temp |= (1 << (wt & 0x1f));
else
temp &= (1 << ~(wt & 0x1f));
hwwrite(vortex->mmio, WT_DSREG((wt >= 0x20) ? 1 : 0), temp);
}
/* Setup WT route. */
static int vortex_wt_allocroute(vortex_t * vortex, int wt, int nr_ch)
{
wt_voice_t *voice = &(vortex->wt_voice[wt]);
int temp;
//FIXME: WT audio routing.
if (nr_ch) {
vortex_fifo_wtinitialize(vortex, wt, 1);
vortex_fifo_setwtvalid(vortex, wt, 1);
vortex_wt_setstereo(vortex, wt, nr_ch - 1);
} else
vortex_fifo_setwtvalid(vortex, wt, 0);
/* Set mixdown mode. */
vortex_wt_setdsout(vortex, wt, 1);
/* Set other parameter registers. */
hwwrite(vortex->mmio, WT_SRAMP(0), 0x880000);
//hwwrite(vortex->mmio, WT_GMODE(0), 0xffffffff);
#ifdef CHIP_AU8830
hwwrite(vortex->mmio, WT_SRAMP(1), 0x880000);
//hwwrite(vortex->mmio, WT_GMODE(1), 0xffffffff);
#endif
hwwrite(vortex->mmio, WT_PARM(wt, 0), 0);
hwwrite(vortex->mmio, WT_PARM(wt, 1), 0);
hwwrite(vortex->mmio, WT_PARM(wt, 2), 0);
temp = hwread(vortex->mmio, WT_PARM(wt, 3));
printk(KERN_DEBUG "vortex: WT PARM3: %x\n", temp);
//hwwrite(vortex->mmio, WT_PARM(wt, 3), temp);
hwwrite(vortex->mmio, WT_DELAY(wt, 0), 0);
hwwrite(vortex->mmio, WT_DELAY(wt, 1), 0);
hwwrite(vortex->mmio, WT_DELAY(wt, 2), 0);
hwwrite(vortex->mmio, WT_DELAY(wt, 3), 0);
printk(KERN_DEBUG "vortex: WT GMODE: %x\n", hwread(vortex->mmio, WT_GMODE(wt)));
hwwrite(vortex->mmio, WT_PARM(wt, 2), 0xffffffff);
hwwrite(vortex->mmio, WT_PARM(wt, 3), 0xcff1c810);
voice->parm0 = voice->parm1 = 0xcfb23e2f;
hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
printk(KERN_DEBUG "vortex: WT GMODE 2 : %x\n", hwread(vortex->mmio, WT_GMODE(wt)));
return 0;
}
static void vortex_wt_connect(vortex_t * vortex, int en)
{
int i, ii, mix;
#define NR_WTROUTES 6
#ifdef CHIP_AU8830
#define NR_WTBLOCKS 2
#else
#define NR_WTBLOCKS 1
#endif
for (i = 0; i < NR_WTBLOCKS; i++) {
for (ii = 0; ii < NR_WTROUTES; ii++) {
mix =
vortex_adb_checkinout(vortex,
vortex->fixed_res, en,
VORTEX_RESOURCE_MIXIN);
vortex->mixwt[(i * NR_WTROUTES) + ii] = mix;
vortex_route(vortex, en, 0x11,
ADB_WTOUT(i, ii + 0x20), ADB_MIXIN(mix));
vortex_connection_mixin_mix(vortex, en, mix,
vortex->mixplayb[ii % 2], 0);
if (VORTEX_IS_QUAD(vortex))
vortex_connection_mixin_mix(vortex, en,
mix,
vortex->mixplayb[2 +
(ii % 2)], 0);
}
}
for (i = 0; i < NR_WT; i++) {
hwwrite(vortex->mmio, WT_RUN(i), 1);
}
}
/* Read WT Register */
#if 0
static int vortex_wt_GetReg(vortex_t * vortex, char reg, int wt)
{
//int eax, esi;
if (reg == 4) {
return hwread(vortex->mmio, WT_PARM(wt, 3));
}
if (reg == 7) {
return hwread(vortex->mmio, WT_GMODE(wt));
}
return 0;
}
/* WT hardware abstraction layer generic register interface. */
static int
vortex_wt_SetReg2(vortex_t * vortex, unsigned char reg, int wt,
u16 val)
{
/*
int eax, edx;
if (wt >= NR_WT) // 0x40 -> NR_WT
return 0;
if ((reg - 0x20) > 0) {
if ((reg - 0x21) != 0)
return 0;
eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x208; // param 2
} else {
eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x20a; // param 3
}
hwwrite(vortex->mmio, eax, c);
*/
return 1;
}
/*public: static void __thiscall CWTHal::SetReg(unsigned char,int,unsigned long) */
#endif
static int
vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
u32 val)
{
int ecx;
if ((reg == 5) || ((reg >= 7) && (reg <= 10)) || (reg == 0xc)) {
if (wt >= (NR_WT / NR_WT_PB)) {
printk
("vortex: WT SetReg: bank out of range. reg=0x%x, wt=%d\n",
reg, wt);
return 0;
}
} else {
if (wt >= NR_WT) {
printk(KERN_ERR "vortex: WT SetReg: voice out of range\n");
return 0;
}
}
if (reg > 0xc)
return 0;
switch (reg) {
/* Voice specific parameters */
case 0: /* running */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_RUN(wt), (int)val);
hwwrite(vortex->mmio, WT_RUN(wt), val);
return 0xc;
break;
case 1: /* param 0 */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_PARM(wt,0), (int)val);
hwwrite(vortex->mmio, WT_PARM(wt, 0), val);
return 0xc;
break;
case 2: /* param 1 */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_PARM(wt,1), (int)val);
hwwrite(vortex->mmio, WT_PARM(wt, 1), val);
return 0xc;
break;
case 3: /* param 2 */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_PARM(wt,2), (int)val);
hwwrite(vortex->mmio, WT_PARM(wt, 2), val);
return 0xc;
break;
case 4: /* param 3 */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_PARM(wt,3), (int)val);
hwwrite(vortex->mmio, WT_PARM(wt, 3), val);
return 0xc;
break;
case 6: /* mute */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_MUTE(wt), (int)val);
hwwrite(vortex->mmio, WT_MUTE(wt), val);
return 0xc;
break;
case 0xb:
{ /* delay */
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", WT_DELAY(wt,0), (int)val);
hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
return 0xc;
}
break;
/* Global WT block parameters */
case 5: /* sramp */
ecx = WT_SRAMP(wt);
break;
case 8: /* aramp */
ecx = WT_ARAMP(wt);
break;
case 9: /* mramp */
ecx = WT_MRAMP(wt);
break;
case 0xa: /* ctrl */
ecx = WT_CTRL(wt);
break;
case 0xc: /* ds_reg */
ecx = WT_DSREG(wt);
break;
default:
return 0;
break;
}
//printk("vortex: WT SetReg(0x%x) = 0x%08x\n", ecx, (int)val);
hwwrite(vortex->mmio, ecx, val);
return 1;
}
static void vortex_wt_init(vortex_t * vortex)
{
u32 var4, var8, varc, var10 = 0, edi;
var10 &= 0xFFFFFFE3;
var10 |= 0x22;
var10 &= 0xFFFFFEBF;
var10 |= 0x80;
var10 |= 0x200;
var10 &= 0xfffffffe;
var10 &= 0xfffffbff;
var10 |= 0x1800;
// var10 = 0x1AA2
var4 = 0x10000000;
varc = 0x00830000;
var8 = 0x00830000;
/* Init Bank registers. */
for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++) {
vortex_wt_SetReg(vortex, 0xc, edi, 0); /* ds_reg */
vortex_wt_SetReg(vortex, 0xa, edi, var10); /* ctrl */
vortex_wt_SetReg(vortex, 0x9, edi, var4); /* mramp */
vortex_wt_SetReg(vortex, 0x8, edi, varc); /* aramp */
vortex_wt_SetReg(vortex, 0x5, edi, var8); /* sramp */
}
/* Init Voice registers. */
for (edi = 0; edi < NR_WT; edi++) {
vortex_wt_SetReg(vortex, 0x4, edi, 0); /* param 3 0x20c */
vortex_wt_SetReg(vortex, 0x3, edi, 0); /* param 2 0x208 */
vortex_wt_SetReg(vortex, 0x2, edi, 0); /* param 1 0x204 */
vortex_wt_SetReg(vortex, 0x1, edi, 0); /* param 0 0x200 */
vortex_wt_SetReg(vortex, 0xb, edi, 0); /* delay 0x400 - 0x40c */
}
var10 |= 1;
for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++)
vortex_wt_SetReg(vortex, 0xa, edi, var10); /* ctrl */
}
/* Extract of CAdbTopology::SetVolume(struct _ASPVOLUME *) */
#if 0
static void vortex_wt_SetVolume(vortex_t * vortex, int wt, int vol[])
{
wt_voice_t *voice = &(vortex->wt_voice[wt]);
int ecx = vol[1], eax = vol[0];
/* This is pure guess */
voice->parm0 &= 0xff00ffff;
voice->parm0 |= (vol[0] & 0xff) << 0x10;
voice->parm1 &= 0xff00ffff;
voice->parm1 |= (vol[1] & 0xff) << 0x10;
/* This is real */
hwwrite(vortex, WT_PARM(wt, 0), voice->parm0);
hwwrite(vortex, WT_PARM(wt, 1), voice->parm0);
if (voice->this_1D0 & 4) {
eax >>= 8;
ecx = eax;
if (ecx < 0x80)
ecx = 0x7f;
voice->parm3 &= 0xFFFFC07F;
voice->parm3 |= (ecx & 0x7f) << 7;
voice->parm3 &= 0xFFFFFF80;
voice->parm3 |= (eax & 0x7f);
} else {
voice->parm3 &= 0xFFE03FFF;
voice->parm3 |= (eax & 0xFE00) << 5;
}
hwwrite(vortex, WT_PARM(wt, 3), voice->parm3);
}
/* Extract of CAdbTopology::SetFrequency(unsigned long arg_0) */
static void vortex_wt_SetFrequency(vortex_t * vortex, int wt, unsigned int sr)
{
wt_voice_t *voice = &(vortex->wt_voice[wt]);
u32 eax, edx;
//FIXME: 64 bit operation.
eax = ((sr << 0xf) * 0x57619F1) & 0xffffffff;
edx = (((sr << 0xf) * 0x57619F1)) >> 0x20;
edx >>= 0xa;
edx <<= 1;
if (edx) {
if (edx & 0x0FFF80000)
eax = 0x7fff;
else {
edx <<= 0xd;
eax = 7;
while ((edx & 0x80000000) == 0) {
edx <<= 1;
eax--;
if (eax == 0)
break;
}
if (eax)
edx <<= 1;
eax <<= 0xc;
edx >>= 0x14;
eax |= edx;
}
} else
eax = 0;
voice->parm0 &= 0xffff0001;
voice->parm0 |= (eax & 0x7fff) << 1;
voice->parm1 = voice->parm0 | 1;
// Wt: this_1D4
//AuWt::WriteReg((ulong)(this_1DC<<4)+0x200, (ulong)this_1E4);
//AuWt::WriteReg((ulong)(this_1DC<<4)+0x204, (ulong)this_1E8);
hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
}
#endif
/* End of File */
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