[funini.com] -> [kei@sodan] -> Kernel Reading

root/sound/pci/au88x0/au88x0_eq.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. vortex_EqHw_SetTimeConsts
  2. sign_invert
  3. vortex_EqHw_SetLeftCoefs
  4. vortex_EqHw_SetRightCoefs
  5. vortex_EqHw_SetLeftStates
  6. vortex_EqHw_SetRightStates
  7. vortex_EqHw_GetTimeConsts
  8. vortex_EqHw_GetLeftCoefs
  9. vortex_EqHw_GetRightCoefs
  10. vortex_EqHw_GetLeftStates
  11. vortex_EqHw_GetRightStates
  12. vortex_EqHw_SetBypassGain
  13. vortex_EqHw_SetA3DBypassGain
  14. vortex_EqHw_SetCurrBypassGain
  15. vortex_EqHw_SetCurrA3DBypassGain
  16. vortex_EqHw_SetLeftGainsSingleTarget
  17. vortex_EqHw_SetRightGainsSingleTarget
  18. vortex_EqHw_SetLeftGainsTarget
  19. vortex_EqHw_SetRightGainsTarget
  20. vortex_EqHw_SetLeftGainsCurrent
  21. vortex_EqHw_SetRightGainsCurrent
  22. vortex_EqHw_GetLeftGainsTarget
  23. vortex_EqHw_GetRightGainsTarget
  24. vortex_EqHw_GetLeftGainsCurrent
  25. vortex_EqHw_GetRightGainsCurrent
  26. vortex_EqHw_SetLevels
  27. vortex_EqHw_GetLevels
  28. vortex_EqHw_SetControlReg
  29. vortex_EqHw_SetSampleRate
  30. vortex_EqHw_GetControlReg
  31. vortex_EqHw_GetSampleRate
  32. vortex_EqHw_Enable
  33. vortex_EqHw_Disable
  34. vortex_EqHw_ZeroIO
  35. vortex_EqHw_ZeroA3DIO
  36. vortex_EqHw_ZeroState
  37. vortex_EqHw_ProgramPipe
  38. vortex_EqHw_Program10Band
  39. vortex_EqHw_GetTenBandLevels
  40. vortex_Eqlzr_GetLeftGain
  41. vortex_Eqlzr_SetLeftGain
  42. vortex_Eqlzr_GetRightGain
  43. vortex_Eqlzr_SetRightGain
  44. vortex_Eqlzr_GetAllBands
  45. vortex_Eqlzr_SetAllBandsFromActiveCoeffSet
  46. vortex_Eqlzr_SetAllBands
  47. vortex_Eqlzr_SetA3dBypassGain
  48. vortex_Eqlzr_ProgramA3dBypassGain
  49. vortex_Eqlzr_ShutDownA3d
  50. vortex_Eqlzr_SetBypass
  51. vortex_Eqlzr_ReadAndSetActiveCoefSet
  52. vortex_Eqlzr_GetAllPeaks
  53. vortex_Eqlzr_GetActiveCoefSet
  54. vortex_Eqlzr_init
  55. vortex_Eqlzr_shutdown
  56. snd_vortex_eqtoggle_get
  57. snd_vortex_eqtoggle_put
  58. snd_vortex_eq_info
  59. snd_vortex_eq_get
  60. snd_vortex_eq_put
  61. snd_vortex_peaks_info
  62. snd_vortex_peaks_get
  63. vortex_eq_init
  64. vortex_eq_free

/***************************************************************************
 *            au88x0_eq.c
 *  Aureal Vortex Hardware EQ control/access.
 *
 *  Sun Jun  8 18:19:19 2003
 *  2003  Manuel Jander (mjander@users.sourceforge.net)
 *  
 *  02 July 2003: First time something works :)
 *  November 2003: A3D Bypass code completed but untested.
 *
 *  TODO:
 *     - Debug (testing)
 *     - Test peak visualization support.
 *
 ****************************************************************************/

/*
 *  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.
 */

/*
 The Aureal Hardware EQ is found on AU8810 and AU8830 chips only.
 it has 4 inputs (2 for general mix, 2 for A3D) and 2 outputs (supposed 
 to be routed to the codec).
*/

#include "au88x0.h"
#include "au88x0_eq.h"
#include "au88x0_eqdata.c"

#define VORTEX_EQ_BASE   0x2b000
#define VORTEX_EQ_DEST   (VORTEX_EQ_BASE + 0x410)
#define VORTEX_EQ_SOURCE (VORTEX_EQ_BASE + 0x430)
#define VORTEX_EQ_CTRL   (VORTEX_EQ_BASE + 0x440)

#define VORTEX_BAND_COEFF_SIZE 0x30

/* CEqHw.s */
static void vortex_EqHw_SetTimeConsts(vortex_t * vortex, u16 gain, u16 level)
{
        hwwrite(vortex->mmio, 0x2b3c4, gain);
        hwwrite(vortex->mmio, 0x2b3c8, level);
}

static inline u16 sign_invert(u16 a)
{
        /* -(-32768) -> -32768 so we do -(-32768) -> 32767 to make the result positive */
        if (a == (u16)-32768)
                return 32767;
        else
                return -a;
}

static void vortex_EqHw_SetLeftCoefs(vortex_t * vortex, u16 coefs[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i = 0, n /*esp2c */;

        for (n = 0; n < eqhw->this04; n++) {
                hwwrite(vortex->mmio, 0x2b000 + n * 0x30, coefs[i + 0]);
                hwwrite(vortex->mmio, 0x2b004 + n * 0x30, coefs[i + 1]);

                if (eqhw->this08 == 0) {
                        hwwrite(vortex->mmio, 0x2b008 + n * 0x30, coefs[i + 2]);
                        hwwrite(vortex->mmio, 0x2b00c + n * 0x30, coefs[i + 3]);
                        hwwrite(vortex->mmio, 0x2b010 + n * 0x30, coefs[i + 4]);
                } else {
                        hwwrite(vortex->mmio, 0x2b008 + n * 0x30, sign_invert(coefs[2 + i]));
                        hwwrite(vortex->mmio, 0x2b00c + n * 0x30, sign_invert(coefs[3 + i]));
                        hwwrite(vortex->mmio, 0x2b010 + n * 0x30, sign_invert(coefs[4 + i]));
                }
                i += 5;
        }
}

static void vortex_EqHw_SetRightCoefs(vortex_t * vortex, u16 coefs[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i = 0, n /*esp2c */;

        for (n = 0; n < eqhw->this04; n++) {
                hwwrite(vortex->mmio, 0x2b1e0 + n * 0x30, coefs[0 + i]);
                hwwrite(vortex->mmio, 0x2b1e4 + n * 0x30, coefs[1 + i]);

                if (eqhw->this08 == 0) {
                        hwwrite(vortex->mmio, 0x2b1e8 + n * 0x30, coefs[2 + i]);
                        hwwrite(vortex->mmio, 0x2b1ec + n * 0x30, coefs[3 + i]);
                        hwwrite(vortex->mmio, 0x2b1f0 + n * 0x30, coefs[4 + i]);
                } else {
                        hwwrite(vortex->mmio, 0x2b1e8 + n * 0x30, sign_invert(coefs[2 + i]));
                        hwwrite(vortex->mmio, 0x2b1ec + n * 0x30, sign_invert(coefs[3 + i]));
                        hwwrite(vortex->mmio, 0x2b1f0 + n * 0x30, sign_invert(coefs[4 + i]));
                }
                i += 5;
        }

}

static void vortex_EqHw_SetLeftStates(vortex_t * vortex, u16 a[], u16 b[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i = 0, ebx;

        hwwrite(vortex->mmio, 0x2b3fc, a[0]);
        hwwrite(vortex->mmio, 0x2b400, a[1]);

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b014 + (i * 0xc), b[i]);
                hwwrite(vortex->mmio, 0x2b018 + (i * 0xc), b[1 + i]);
                hwwrite(vortex->mmio, 0x2b01c + (i * 0xc), b[2 + i]);
                hwwrite(vortex->mmio, 0x2b020 + (i * 0xc), b[3 + i]);
                i += 4;
        }
}

static void vortex_EqHw_SetRightStates(vortex_t * vortex, u16 a[], u16 b[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i = 0, ebx;

        hwwrite(vortex->mmio, 0x2b404, a[0]);
        hwwrite(vortex->mmio, 0x2b408, a[1]);

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b1f4 + (i * 0xc), b[i]);
                hwwrite(vortex->mmio, 0x2b1f8 + (i * 0xc), b[1 + i]);
                hwwrite(vortex->mmio, 0x2b1fc + (i * 0xc), b[2 + i]);
                hwwrite(vortex->mmio, 0x2b200 + (i * 0xc), b[3 + i]);
                i += 4;
        }
}

#if 0
static void vortex_EqHw_GetTimeConsts(vortex_t * vortex, u16 * a, u16 * b)
{
        *a = hwread(vortex->mmio, 0x2b3c4);
        *b = hwread(vortex->mmio, 0x2b3c8);
}

static void vortex_EqHw_GetLeftCoefs(vortex_t * vortex, u16 a[])
{

}

static void vortex_EqHw_GetRightCoefs(vortex_t * vortex, u16 a[])
{

}

static void vortex_EqHw_GetLeftStates(vortex_t * vortex, u16 * a, u16 b[])
{

}

static void vortex_EqHw_GetRightStates(vortex_t * vortex, u16 * a, u16 b[])
{

}

#endif
/* Mix Gains */
static void vortex_EqHw_SetBypassGain(vortex_t * vortex, u16 a, u16 b)
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        if (eqhw->this08 == 0) {
                hwwrite(vortex->mmio, 0x2b3d4, a);
                hwwrite(vortex->mmio, 0x2b3ec, b);
        } else {
                hwwrite(vortex->mmio, 0x2b3d4, sign_invert(a));
                hwwrite(vortex->mmio, 0x2b3ec, sign_invert(b));
        }
}

static void vortex_EqHw_SetA3DBypassGain(vortex_t * vortex, u16 a, u16 b)
{

        hwwrite(vortex->mmio, 0x2b3e0, a);
        hwwrite(vortex->mmio, 0x2b3f8, b);
}

#if 0
static void vortex_EqHw_SetCurrBypassGain(vortex_t * vortex, u16 a, u16 b)
{

        hwwrite(vortex->mmio, 0x2b3d0, a);
        hwwrite(vortex->mmio, 0x2b3e8, b);
}

static void vortex_EqHw_SetCurrA3DBypassGain(vortex_t * vortex, u16 a, u16 b)
{

        hwwrite(vortex->mmio, 0x2b3dc, a);
        hwwrite(vortex->mmio, 0x2b3f4, b);
}

#endif
static void
vortex_EqHw_SetLeftGainsSingleTarget(vortex_t * vortex, u16 index, u16 b)
{
        hwwrite(vortex->mmio, 0x2b02c + (index * 0x30), b);
}

static void
vortex_EqHw_SetRightGainsSingleTarget(vortex_t * vortex, u16 index, u16 b)
{
        hwwrite(vortex->mmio, 0x2b20c + (index * 0x30), b);
}

static void vortex_EqHw_SetLeftGainsTarget(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx;

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b02c + ebx * 0x30, a[ebx]);
        }
}

static void vortex_EqHw_SetRightGainsTarget(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx;

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b20c + ebx * 0x30, a[ebx]);
        }
}

static void vortex_EqHw_SetLeftGainsCurrent(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx;

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b028 + ebx * 0x30, a[ebx]);
        }
}

static void vortex_EqHw_SetRightGainsCurrent(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx;

        for (ebx = 0; ebx < eqhw->this04; ebx++) {
                hwwrite(vortex->mmio, 0x2b208 + ebx * 0x30, a[ebx]);
        }
}

#if 0
static void vortex_EqHw_GetLeftGainsTarget(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx = 0;

        if (eqhw->this04 < 0)
                return;

        do {
                a[ebx] = hwread(vortex->mmio, 0x2b02c + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);
}

static void vortex_EqHw_GetRightGainsTarget(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx = 0;

        if (eqhw->this04 < 0)
                return;

        do {
                a[ebx] = hwread(vortex->mmio, 0x2b20c + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);
}

static void vortex_EqHw_GetLeftGainsCurrent(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx = 0;

        if (eqhw->this04 < 0)
                return;

        do {
                a[ebx] = hwread(vortex->mmio, 0x2b028 + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);
}

static void vortex_EqHw_GetRightGainsCurrent(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx = 0;

        if (eqhw->this04 < 0)
                return;

        do {
                a[ebx] = hwread(vortex->mmio, 0x2b208 + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);
}

#endif
/* EQ band levels settings */
static void vortex_EqHw_SetLevels(vortex_t * vortex, u16 peaks[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i;

        /* set left peaks */
        for (i = 0; i < eqhw->this04; i++) {
                hwwrite(vortex->mmio, 0x2b024 + i * VORTEX_BAND_COEFF_SIZE, peaks[i]);
        }

        hwwrite(vortex->mmio, 0x2b3cc, peaks[eqhw->this04]);
        hwwrite(vortex->mmio, 0x2b3d8, peaks[eqhw->this04 + 1]);

        /* set right peaks */
        for (i = 0; i < eqhw->this04; i++) {
                hwwrite(vortex->mmio, 0x2b204 + i * VORTEX_BAND_COEFF_SIZE,
                        peaks[i + (eqhw->this04 + 2)]);
        }

        hwwrite(vortex->mmio, 0x2b3e4, peaks[2 + (eqhw->this04 * 2)]);
        hwwrite(vortex->mmio, 0x2b3f0, peaks[3 + (eqhw->this04 * 2)]);
}

#if 0
static void vortex_EqHw_GetLevels(vortex_t * vortex, u16 a[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int ebx;

        if (eqhw->this04 < 0)
                return;

        ebx = 0;
        do {
                a[ebx] = hwread(vortex->mmio, 0x2b024 + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);

        a[eqhw->this04] = hwread(vortex->mmio, 0x2b3cc);
        a[eqhw->this04 + 1] = hwread(vortex->mmio, 0x2b3d8);

        ebx = 0;
        do {
                a[ebx + (eqhw->this04 + 2)] =
                    hwread(vortex->mmio, 0x2b204 + ebx * 0x30);
                ebx++;
        }
        while (ebx < eqhw->this04);

        a[2 + (eqhw->this04 * 2)] = hwread(vortex->mmio, 0x2b3e4);
        a[3 + (eqhw->this04 * 2)] = hwread(vortex->mmio, 0x2b3f0);
}

#endif
/* Global Control */
static void vortex_EqHw_SetControlReg(vortex_t * vortex, u32 reg)
{
        hwwrite(vortex->mmio, 0x2b440, reg);
}

static void vortex_EqHw_SetSampleRate(vortex_t * vortex, u32 sr)
{
        hwwrite(vortex->mmio, 0x2b440, ((sr & 0x1f) << 3) | 0xb800);
}

#if 0
static void vortex_EqHw_GetControlReg(vortex_t * vortex, u32 *reg)
{
        *reg = hwread(vortex->mmio, 0x2b440);
}

static void vortex_EqHw_GetSampleRate(vortex_t * vortex, u32 *sr)
{
        *sr = (hwread(vortex->mmio, 0x2b440) >> 3) & 0x1f;
}

#endif
static void vortex_EqHw_Enable(vortex_t * vortex)
{
        hwwrite(vortex->mmio, VORTEX_EQ_CTRL, 0xf001);
}

static void vortex_EqHw_Disable(vortex_t * vortex)
{
        hwwrite(vortex->mmio, VORTEX_EQ_CTRL, 0xf000);
}

/* Reset (zero) buffers */
static void vortex_EqHw_ZeroIO(vortex_t * vortex)
{
        int i;
        for (i = 0; i < 0x8; i++)
                hwwrite(vortex->mmio, VORTEX_EQ_DEST + (i << 2), 0x0);
        for (i = 0; i < 0x4; i++)
                hwwrite(vortex->mmio, VORTEX_EQ_SOURCE + (i << 2), 0x0);
}

static void vortex_EqHw_ZeroA3DIO(vortex_t * vortex)
{
        int i;
        for (i = 0; i < 0x4; i++)
                hwwrite(vortex->mmio, VORTEX_EQ_DEST + (i << 2), 0x0);
}

static void vortex_EqHw_ZeroState(vortex_t * vortex)
{

        vortex_EqHw_SetControlReg(vortex, 0);
        vortex_EqHw_ZeroIO(vortex);
        hwwrite(vortex->mmio, 0x2b3c0, 0);

        vortex_EqHw_SetTimeConsts(vortex, 0, 0);

        vortex_EqHw_SetLeftCoefs(vortex, asEqCoefsZeros);
        vortex_EqHw_SetRightCoefs(vortex, asEqCoefsZeros);

        vortex_EqHw_SetLeftGainsCurrent(vortex, eq_gains_zero);
        vortex_EqHw_SetRightGainsCurrent(vortex, eq_gains_zero);
        vortex_EqHw_SetLeftGainsTarget(vortex, eq_gains_zero);
        vortex_EqHw_SetRightGainsTarget(vortex, eq_gains_zero);

        vortex_EqHw_SetBypassGain(vortex, 0, 0);
        //vortex_EqHw_SetCurrBypassGain(vortex, 0, 0);
        vortex_EqHw_SetA3DBypassGain(vortex, 0, 0);
        //vortex_EqHw_SetCurrA3DBypassGain(vortex, 0, 0);
        vortex_EqHw_SetLeftStates(vortex, eq_states_zero, asEqOutStateZeros);
        vortex_EqHw_SetRightStates(vortex, eq_states_zero, asEqOutStateZeros);
        vortex_EqHw_SetLevels(vortex, (u16 *) eq_levels);
}

/* Program coeficients as pass through */
static void vortex_EqHw_ProgramPipe(vortex_t * vortex)
{
        vortex_EqHw_SetTimeConsts(vortex, 0, 0);

        vortex_EqHw_SetLeftCoefs(vortex, asEqCoefsPipes);
        vortex_EqHw_SetRightCoefs(vortex, asEqCoefsPipes);

        vortex_EqHw_SetLeftGainsCurrent(vortex, eq_gains_current);
        vortex_EqHw_SetRightGainsCurrent(vortex, eq_gains_current);
        vortex_EqHw_SetLeftGainsTarget(vortex, eq_gains_current);
        vortex_EqHw_SetRightGainsTarget(vortex, eq_gains_current);
}

/* Program EQ block as 10 band Equalizer */
static void
vortex_EqHw_Program10Band(vortex_t * vortex, auxxEqCoeffSet_t * coefset)
{

        vortex_EqHw_SetTimeConsts(vortex, 0xc, 0x7fe0);

        vortex_EqHw_SetLeftCoefs(vortex, coefset->LeftCoefs);
        vortex_EqHw_SetRightCoefs(vortex, coefset->RightCoefs);

        vortex_EqHw_SetLeftGainsCurrent(vortex, coefset->LeftGains);

        vortex_EqHw_SetRightGainsTarget(vortex, coefset->RightGains);
        vortex_EqHw_SetLeftGainsTarget(vortex, coefset->LeftGains);

        vortex_EqHw_SetRightGainsCurrent(vortex, coefset->RightGains);
}

/* Read all EQ peaks. (think VU meter) */
static void vortex_EqHw_GetTenBandLevels(vortex_t * vortex, u16 peaks[])
{
        eqhw_t *eqhw = &(vortex->eq.this04);
        int i;

        if (eqhw->this04 <= 0)
                return;

        for (i = 0; i < eqhw->this04; i++)
                peaks[i] = hwread(vortex->mmio, 0x2B024 + i * 0x30);
        for (i = 0; i < eqhw->this04; i++)
                peaks[i + eqhw->this04] =
                    hwread(vortex->mmio, 0x2B204 + i * 0x30);
}

/* CEqlzr.s */

static int vortex_Eqlzr_GetLeftGain(vortex_t * vortex, u16 index, u16 * gain)
{
        eqlzr_t *eq = &(vortex->eq);

        if (eq->this28) {
                *gain = eq->this130[index];
                return 0;
        }
        return 1;
}

static void vortex_Eqlzr_SetLeftGain(vortex_t * vortex, u16 index, u16 gain)
{
        eqlzr_t *eq = &(vortex->eq);

        if (eq->this28 == 0)
                return;

        eq->this130[index] = gain;
        if (eq->this54)
                return;

        vortex_EqHw_SetLeftGainsSingleTarget(vortex, index, gain);
}

static int vortex_Eqlzr_GetRightGain(vortex_t * vortex, u16 index, u16 * gain)
{
        eqlzr_t *eq = &(vortex->eq);

        if (eq->this28) {
                *gain = eq->this130[index + eq->this10];
                return 0;
        }
        return 1;
}

static void vortex_Eqlzr_SetRightGain(vortex_t * vortex, u16 index, u16 gain)
{
        eqlzr_t *eq = &(vortex->eq);

        if (eq->this28 == 0)
                return;

        eq->this130[index + eq->this10] = gain;
        if (eq->this54)
                return;

        vortex_EqHw_SetRightGainsSingleTarget(vortex, index, gain);
}

#if 0
static int
vortex_Eqlzr_GetAllBands(vortex_t * vortex, u16 * gains, s32 *cnt)
{
        eqlzr_t *eq = &(vortex->eq);
        int si = 0;

        if (eq->this10 == 0)
                return 1;

        {
                if (vortex_Eqlzr_GetLeftGain(vortex, si, &gains[si]))
                        return 1;
                if (vortex_Eqlzr_GetRightGain
                    (vortex, si, &gains[si + eq->this10]))
                        return 1;
                si++;
        }
        while (eq->this10 > si) ;
        *cnt = si * 2;
        return 0;
}
#endif
static int vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex_t * vortex)
{
        eqlzr_t *eq = &(vortex->eq);

        vortex_EqHw_SetLeftGainsTarget(vortex, eq->this130);
        vortex_EqHw_SetRightGainsTarget(vortex, &(eq->this130[eq->this10]));

        return 0;
}

static int
vortex_Eqlzr_SetAllBands(vortex_t * vortex, u16 gains[], s32 count)
{
        eqlzr_t *eq = &(vortex->eq);
        int i;

        if (((eq->this10) * 2 != count) || (eq->this28 == 0))
                return 1;

        for (i = 0; i < count; i++) {
                eq->this130[i] = gains[i];
        }
        
        if (eq->this54)
                return 0;
        return vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex);
}

static void
vortex_Eqlzr_SetA3dBypassGain(vortex_t * vortex, u32 a, u32 b)
{
        eqlzr_t *eq = &(vortex->eq);
        u32 eax, ebx;

        eq->this58 = a;
        eq->this5c = b;
        if (eq->this54)
                eax = eq->this0e;
        else
                eax = eq->this0a;
        ebx = (eax * eq->this58) >> 0x10;
        eax = (eax * eq->this5c) >> 0x10;
        vortex_EqHw_SetA3DBypassGain(vortex, ebx, eax);
}

static void vortex_Eqlzr_ProgramA3dBypassGain(vortex_t * vortex)
{
        eqlzr_t *eq = &(vortex->eq);
        u32 eax, ebx;

        if (eq->this54)
                eax = eq->this0e;
        else
                eax = eq->this0a;
        ebx = (eax * eq->this58) >> 0x10;
        eax = (eax * eq->this5c) >> 0x10;
        vortex_EqHw_SetA3DBypassGain(vortex, ebx, eax);
}

static void vortex_Eqlzr_ShutDownA3d(vortex_t * vortex)
{
        if (vortex != NULL)
                vortex_EqHw_ZeroA3DIO(vortex);
}

static void vortex_Eqlzr_SetBypass(vortex_t * vortex, u32 bp)
{
        eqlzr_t *eq = &(vortex->eq);
        
        if ((eq->this28) && (bp == 0)) {
                /* EQ enabled */
                vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex);
                vortex_EqHw_SetBypassGain(vortex, eq->this08, eq->this08);
        } else {
                /* EQ disabled. */
                vortex_EqHw_SetLeftGainsTarget(vortex, eq->this14_array);
                vortex_EqHw_SetRightGainsTarget(vortex, eq->this14_array);
                vortex_EqHw_SetBypassGain(vortex, eq->this0c, eq->this0c);
        }
        vortex_Eqlzr_ProgramA3dBypassGain(vortex);
}

static void vortex_Eqlzr_ReadAndSetActiveCoefSet(vortex_t * vortex)
{
        eqlzr_t *eq = &(vortex->eq);

        /* Set EQ BiQuad filter coeficients */
        memcpy(&(eq->coefset), &asEqCoefsNormal, sizeof(auxxEqCoeffSet_t));
        /* Set EQ Band gain levels and dump into hardware registers. */
        vortex_Eqlzr_SetAllBands(vortex, eq_gains_normal, eq->this10 * 2);
}

static int vortex_Eqlzr_GetAllPeaks(vortex_t * vortex, u16 * peaks, int *count)
{
        eqlzr_t *eq = &(vortex->eq);

        if (eq->this10 == 0)
                return 1;
        *count = eq->this10 * 2;
        vortex_EqHw_GetTenBandLevels(vortex, peaks);
        return 0;
}

#if 0
static auxxEqCoeffSet_t *vortex_Eqlzr_GetActiveCoefSet(vortex_t * vortex)
{
        eqlzr_t *eq = &(vortex->eq);

        return (&(eq->coefset));
}
#endif
static void vortex_Eqlzr_init(vortex_t * vortex)
{
        eqlzr_t *eq = &(vortex->eq);

        /* Object constructor */
        //eq->this04 = 0;
        eq->this08 = 0;         /* Bypass gain with EQ in use. */
        eq->this0a = 0x5999;
        eq->this0c = 0x5999;    /* Bypass gain with EQ disabled. */
        eq->this0e = 0x5999;

        eq->this10 = 0xa;       /* 10 eq frequency bands. */
        eq->this04.this04 = eq->this10;
        eq->this28 = 0x1;       /* if 1 => Allow read access to this130 (gains) */
        eq->this54 = 0x0;       /* if 1 => Dont Allow access to hardware (gains) */
        eq->this58 = 0xffff;
        eq->this5c = 0xffff;

        /* Set gains. */
        memset(eq->this14_array, 0, sizeof(eq->this14_array));

        /* Actual init. */
        vortex_EqHw_ZeroState(vortex);
        vortex_EqHw_SetSampleRate(vortex, 0x11);
        vortex_Eqlzr_ReadAndSetActiveCoefSet(vortex);

        vortex_EqHw_Program10Band(vortex, &(eq->coefset));
        vortex_Eqlzr_SetBypass(vortex, eq->this54);
        vortex_Eqlzr_SetA3dBypassGain(vortex, 0, 0);
        vortex_EqHw_Enable(vortex);
}

static void vortex_Eqlzr_shutdown(vortex_t * vortex)
{
        vortex_Eqlzr_ShutDownA3d(vortex);
        vortex_EqHw_ProgramPipe(vortex);
        vortex_EqHw_Disable(vortex);
}

/* ALSA interface */

/* Control interface */
#define snd_vortex_eqtoggle_info        snd_ctl_boolean_mono_info

static int
snd_vortex_eqtoggle_get(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol)
{
        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
        eqlzr_t *eq = &(vortex->eq);
        //int i = kcontrol->private_value;

        ucontrol->value.integer.value[0] = eq->this54 ? 0 : 1;

        return 0;
}

static int
snd_vortex_eqtoggle_put(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol)
{
        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
        eqlzr_t *eq = &(vortex->eq);
        //int i = kcontrol->private_value;

        eq->this54 = ucontrol->value.integer.value[0] ? 0 : 1;
        vortex_Eqlzr_SetBypass(vortex, eq->this54);

        return 1;               /* Allways changes */
}

static struct snd_kcontrol_new vortex_eqtoggle_kcontrol __devinitdata = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "EQ Enable",
        .index = 0,
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
        .private_value = 0,
        .info = snd_vortex_eqtoggle_info,
        .get = snd_vortex_eqtoggle_get,
        .put = snd_vortex_eqtoggle_put
};

static int
snd_vortex_eq_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 2;
        uinfo->value.integer.min = 0x0000;
        uinfo->value.integer.max = 0x7fff;
        return 0;
}

static int
snd_vortex_eq_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
        int i = kcontrol->private_value;
        u16 gainL = 0, gainR = 0;

        vortex_Eqlzr_GetLeftGain(vortex, i, &gainL);
        vortex_Eqlzr_GetRightGain(vortex, i, &gainR);
        ucontrol->value.integer.value[0] = gainL;
        ucontrol->value.integer.value[1] = gainR;
        return 0;
}

static int
snd_vortex_eq_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
        int changed = 0, i = kcontrol->private_value;
        u16 gainL = 0, gainR = 0;

        vortex_Eqlzr_GetLeftGain(vortex, i, &gainL);
        vortex_Eqlzr_GetRightGain(vortex, i, &gainR);

        if (gainL != ucontrol->value.integer.value[0]) {
                vortex_Eqlzr_SetLeftGain(vortex, i,
                                         ucontrol->value.integer.value[0]);
                changed = 1;
        }
        if (gainR != ucontrol->value.integer.value[1]) {
                vortex_Eqlzr_SetRightGain(vortex, i,
                                          ucontrol->value.integer.value[1]);
                changed = 1;
        }
        return changed;
}

static struct snd_kcontrol_new vortex_eq_kcontrol __devinitdata = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "                        .",
        .index = 0,
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
        .private_value = 0,
        .info = snd_vortex_eq_info,
        .get = snd_vortex_eq_get,
        .put = snd_vortex_eq_put
};

static int
snd_vortex_peaks_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 20;
        uinfo->value.integer.min = 0x0000;
        uinfo->value.integer.max = 0x7fff;
        return 0;
}

static int
snd_vortex_peaks_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
        int i, count = 0;
        u16 peaks[20];

        vortex_Eqlzr_GetAllPeaks(vortex, peaks, &count);
        if (count != 20) {
                printk(KERN_ERR "vortex: peak count error 20 != %d \n", count);
                return -1;
        }
        for (i = 0; i < 20; i++)
                ucontrol->value.integer.value[i] = peaks[i];

        return 0;
}

static struct snd_kcontrol_new vortex_levels_kcontrol __devinitdata = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "EQ Peaks",
        .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
        .info = snd_vortex_peaks_info,
        .get = snd_vortex_peaks_get,
};

/* EQ band gain labels. */
static char *EqBandLabels[10] __devinitdata = {
        "EQ0 31Hz\0",
        "EQ1 63Hz\0",
        "EQ2 125Hz\0",
        "EQ3 250Hz\0",
        "EQ4 500Hz\0",
        "EQ5 1KHz\0",
        "EQ6 2KHz\0",
        "EQ7 4KHz\0",
        "EQ8 8KHz\0",
        "EQ9 16KHz\0",
};

/* ALSA driver entry points. Init and exit. */
static int __devinit vortex_eq_init(vortex_t * vortex)
{
        struct snd_kcontrol *kcontrol;
        int err, i;

        vortex_Eqlzr_init(vortex);

        if ((kcontrol =
             snd_ctl_new1(&vortex_eqtoggle_kcontrol, vortex)) == NULL)
                return -ENOMEM;
        kcontrol->private_value = 0;
        if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
                return err;

        /* EQ gain controls */
        for (i = 0; i < 10; i++) {
                if ((kcontrol =
                     snd_ctl_new1(&vortex_eq_kcontrol, vortex)) == NULL)
                        return -ENOMEM;
                strcpy(kcontrol->id.name, EqBandLabels[i]);
                kcontrol->private_value = i;
                if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
                        return err;
                //vortex->eqctrl[i] = kcontrol;
        }
        /* EQ band levels */
        if ((kcontrol = snd_ctl_new1(&vortex_levels_kcontrol, vortex)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
                return err;

        return 0;
}

static int vortex_eq_free(vortex_t * vortex)
{
        /*
           //FIXME: segfault because vortex->eqctrl[i] == 4
           int i;
           for (i=0; i<10; i++) {
           if (vortex->eqctrl[i])
           snd_ctl_remove(vortex->card, vortex->eqctrl[i]);
           }
         */
        vortex_Eqlzr_shutdown(vortex);
        return 0;
}

/* End */

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading