/*
$Id: cx88-tvaudio.c,v 1.37 2005/07/07 13:58:38 mchehab Exp $
cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
(c) 2001 Michael Eskin, Tom Zakrajsek [Windows version]
(c) 2002 Yurij Sysoev <yurij@naturesoft.net>
(c) 2003 Gerd Knorr <kraxel@bytesex.org>
-----------------------------------------------------------------------
Lot of voodoo here. Even the data sheet doesn't help to
understand what is going on here, the documentation for the audio
part of the cx2388x chip is *very* bad.
Some of this comes from party done linux driver sources I got from
[undocumented].
Some comes from the dscaler sources, one of the dscaler driver guy works
for Conexant ...
-----------------------------------------------------------------------
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/poll.h>
#include <linux/pci.h>
#include <linux/signal.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include "cx88.h"
static unsigned int audio_debug = 0;
module_param(audio_debug,int,0644);
MODULE_PARM_DESC(audio_debug,"enable debug messages [audio]");
#define dprintk(fmt, arg...) if (audio_debug) \
printk(KERN_DEBUG "%s/0: " fmt, core->name , ## arg)
/* ----------------------------------------------------------- */
static char *aud_ctl_names[64] =
{
[ EN_BTSC_FORCE_MONO ] = "BTSC_FORCE_MONO",
[ EN_BTSC_FORCE_STEREO ] = "BTSC_FORCE_STEREO",
[ EN_BTSC_FORCE_SAP ] = "BTSC_FORCE_SAP",
[ EN_BTSC_AUTO_STEREO ] = "BTSC_AUTO_STEREO",
[ EN_BTSC_AUTO_SAP ] = "BTSC_AUTO_SAP",
[ EN_A2_FORCE_MONO1 ] = "A2_FORCE_MONO1",
[ EN_A2_FORCE_MONO2 ] = "A2_FORCE_MONO2",
[ EN_A2_FORCE_STEREO ] = "A2_FORCE_STEREO",
[ EN_A2_AUTO_MONO2 ] = "A2_AUTO_MONO2",
[ EN_A2_AUTO_STEREO ] = "A2_AUTO_STEREO",
[ EN_EIAJ_FORCE_MONO1 ] = "EIAJ_FORCE_MONO1",
[ EN_EIAJ_FORCE_MONO2 ] = "EIAJ_FORCE_MONO2",
[ EN_EIAJ_FORCE_STEREO ] = "EIAJ_FORCE_STEREO",
[ EN_EIAJ_AUTO_MONO2 ] = "EIAJ_AUTO_MONO2",
[ EN_EIAJ_AUTO_STEREO ] = "EIAJ_AUTO_STEREO",
[ EN_NICAM_FORCE_MONO1 ] = "NICAM_FORCE_MONO1",
[ EN_NICAM_FORCE_MONO2 ] = "NICAM_FORCE_MONO2",
[ EN_NICAM_FORCE_STEREO ] = "NICAM_FORCE_STEREO",
[ EN_NICAM_AUTO_MONO2 ] = "NICAM_AUTO_MONO2",
[ EN_NICAM_AUTO_STEREO ] = "NICAM_AUTO_STEREO",
[ EN_FMRADIO_FORCE_MONO ] = "FMRADIO_FORCE_MONO",
[ EN_FMRADIO_FORCE_STEREO ] = "FMRADIO_FORCE_STEREO",
[ EN_FMRADIO_AUTO_STEREO ] = "FMRADIO_AUTO_STEREO",
};
struct rlist {
u32 reg;
u32 val;
};
static void set_audio_registers(struct cx88_core *core,
const struct rlist *l)
{
int i;
for (i = 0; l[i].reg; i++) {
switch (l[i].reg) {
case AUD_PDF_DDS_CNST_BYTE2:
case AUD_PDF_DDS_CNST_BYTE1:
case AUD_PDF_DDS_CNST_BYTE0:
case AUD_QAM_MODE:
case AUD_PHACC_FREQ_8MSB:
case AUD_PHACC_FREQ_8LSB:
cx_writeb(l[i].reg, l[i].val);
break;
default:
cx_write(l[i].reg, l[i].val);
break;
}
}
}
static void set_audio_start(struct cx88_core *core,
u32 mode, u32 ctl)
{
// mute
cx_write(AUD_VOL_CTL, (1 << 6));
// increase level of input by 12dB
// cx_write(AUD_AFE_12DB_EN, 0x0001);
cx_write(AUD_AFE_12DB_EN, 0x0000);
// start programming
cx_write(AUD_CTL, 0x0000);
cx_write(AUD_INIT, mode);
cx_write(AUD_INIT_LD, 0x0001);
cx_write(AUD_SOFT_RESET, 0x0001);
cx_write(AUD_CTL, ctl);
}
static void set_audio_finish(struct cx88_core *core)
{
u32 volume;
if (cx88_boards[core->board].blackbird) {
// sets sound input from external adc
cx_set(AUD_CTL, EN_I2SIN_ENABLE);
//cx_write(AUD_I2SINPUTCNTL, 0);
cx_write(AUD_I2SINPUTCNTL, 4);
cx_write(AUD_BAUDRATE, 1);
// 'pass-thru mode': this enables the i2s output to the mpeg encoder
cx_set(AUD_CTL, EN_I2SOUT_ENABLE);
cx_write(AUD_I2SOUTPUTCNTL, 1);
cx_write(AUD_I2SCNTL, 0);
//cx_write(AUD_APB_IN_RATE_ADJ, 0);
}
// finish programming
cx_write(AUD_SOFT_RESET, 0x0000);
// start audio processing
cx_set(AUD_CTL, EN_DAC_ENABLE);
// unmute
volume = cx_sread(SHADOW_AUD_VOL_CTL);
cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
}
/* ----------------------------------------------------------- */
static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap)
{
static const struct rlist btsc[] = {
/* from dscaler */
{ AUD_OUT1_SEL, 0x00000013 },
{ AUD_OUT1_SHIFT, 0x00000000 },
{ AUD_POLY0_DDS_CONSTANT, 0x0012010c },
{ AUD_DMD_RA_DDS, 0x00c3e7aa },
{ AUD_DBX_IN_GAIN, 0x00004734 },
{ AUD_DBX_WBE_GAIN, 0x00004640 },
{ AUD_DBX_SE_GAIN, 0x00008d31 },
{ AUD_DCOC_0_SRC, 0x0000001a },
{ AUD_IIR1_4_SEL, 0x00000021 },
{ AUD_DCOC_PASS_IN, 0x00000003 },
{ AUD_DCOC_0_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_0_SHIFT_IN1, 0x00000008 },
{ AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
{ AUD_DN0_FREQ, 0x0000283b },
{ AUD_DN2_SRC_SEL, 0x00000008 },
{ AUD_DN2_FREQ, 0x00003000 },
{ AUD_DN2_AFC, 0x00000002 },
{ AUD_DN2_SHFT, 0x00000000 },
{ AUD_IIR2_2_SEL, 0x00000020 },
{ AUD_IIR2_2_SHIFT, 0x00000000 },
{ AUD_IIR2_3_SEL, 0x0000001f },
{ AUD_IIR2_3_SHIFT, 0x00000000 },
{ AUD_CRDC1_SRC_SEL, 0x000003ce },
{ AUD_CRDC1_SHIFT, 0x00000000 },
{ AUD_CORDIC_SHIFT_1, 0x00000007 },
{ AUD_DCOC_1_SRC, 0x0000001b },
{ AUD_DCOC1_SHIFT, 0x00000000 },
{ AUD_RDSI_SEL, 0x00000008 },
{ AUD_RDSQ_SEL, 0x00000008 },
{ AUD_RDSI_SHIFT, 0x00000000 },
{ AUD_RDSQ_SHIFT, 0x00000000 },
{ AUD_POLYPH80SCALEFAC, 0x00000003 },
{ /* end of list */ },
};
static const struct rlist btsc_sap[] = {
{ AUD_DBX_IN_GAIN, 0x00007200 },
{ AUD_DBX_WBE_GAIN, 0x00006200 },
{ AUD_DBX_SE_GAIN, 0x00006200 },
{ AUD_IIR1_1_SEL, 0x00000000 },
{ AUD_IIR1_3_SEL, 0x00000001 },
{ AUD_DN1_SRC_SEL, 0x00000007 },
{ AUD_IIR1_4_SHIFT, 0x00000006 },
{ AUD_IIR2_1_SHIFT, 0x00000000 },
{ AUD_IIR2_2_SHIFT, 0x00000000 },
{ AUD_IIR3_0_SHIFT, 0x00000000 },
{ AUD_IIR3_1_SHIFT, 0x00000000 },
{ AUD_IIR3_0_SEL, 0x0000000d },
{ AUD_IIR3_1_SEL, 0x0000000e },
{ AUD_DEEMPH1_SRC_SEL, 0x00000014 },
{ AUD_DEEMPH1_SHIFT, 0x00000000 },
{ AUD_DEEMPH1_G0, 0x00004000 },
{ AUD_DEEMPH1_A0, 0x00000000 },
{ AUD_DEEMPH1_B0, 0x00000000 },
{ AUD_DEEMPH1_A1, 0x00000000 },
{ AUD_DEEMPH1_B1, 0x00000000 },
{ AUD_OUT0_SEL, 0x0000003f },
{ AUD_OUT1_SEL, 0x0000003f },
{ AUD_DN1_AFC, 0x00000002 },
{ AUD_DCOC_0_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_0_SHIFT_IN1, 0x00000008 },
{ AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
{ AUD_IIR1_0_SEL, 0x0000001d },
{ AUD_IIR1_2_SEL, 0x0000001e },
{ AUD_IIR2_1_SEL, 0x00000002 },
{ AUD_IIR2_2_SEL, 0x00000004 },
{ AUD_IIR3_2_SEL, 0x0000000f },
{ AUD_DCOC2_SHIFT, 0x00000001 },
{ AUD_IIR3_2_SHIFT, 0x00000001 },
{ AUD_DEEMPH0_SRC_SEL, 0x00000014 },
{ AUD_CORDIC_SHIFT_1, 0x00000006 },
{ AUD_POLY0_DDS_CONSTANT, 0x000e4db2 },
{ AUD_DMD_RA_DDS, 0x00f696e6 },
{ AUD_IIR2_3_SEL, 0x00000025 },
{ AUD_IIR1_4_SEL, 0x00000021 },
{ AUD_DN1_FREQ, 0x0000c965 },
{ AUD_DCOC_PASS_IN, 0x00000003 },
{ AUD_DCOC_0_SRC, 0x0000001a },
{ AUD_DCOC_1_SRC, 0x0000001b },
{ AUD_DCOC1_SHIFT, 0x00000000 },
{ AUD_RDSI_SEL, 0x00000009 },
{ AUD_RDSQ_SEL, 0x00000009 },
{ AUD_RDSI_SHIFT, 0x00000000 },
{ AUD_RDSQ_SHIFT, 0x00000000 },
{ AUD_POLYPH80SCALEFAC, 0x00000003 },
{ /* end of list */ },
};
// dscaler: exactly taken from driver,
// dscaler: don't know why to set EN_FMRADIO_EN_RDS
if (sap) {
dprintk("%s SAP (status: unknown)\n",__FUNCTION__);
set_audio_start(core, 0x0001,
EN_FMRADIO_EN_RDS | EN_BTSC_FORCE_SAP);
set_audio_registers(core, btsc_sap);
} else {
dprintk("%s (status: known-good)\n",__FUNCTION__);
set_audio_start(core, 0x0001,
EN_FMRADIO_EN_RDS | EN_BTSC_AUTO_STEREO);
set_audio_registers(core, btsc);
}
set_audio_finish(core);
}
static void set_audio_standard_NICAM_L(struct cx88_core *core, int stereo)
{
/* This is probably weird..
* Let's operate and find out. */
static const struct rlist nicam_l_mono[] = {
{ AUD_ERRLOGPERIOD_R, 0x00000064 },
{ AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF },
{ AUD_ERRINTRPTTHSHLD2_R, 0x0000001F },
{ AUD_ERRINTRPTTHSHLD3_R, 0x0000000F },
{ AUD_PDF_DDS_CNST_BYTE2, 0x48 },
{ AUD_PDF_DDS_CNST_BYTE1, 0x3D },
{ AUD_QAM_MODE, 0x00 },
{ AUD_PDF_DDS_CNST_BYTE0, 0xf5 },
{ AUD_PHACC_FREQ_8MSB, 0x3a },
{ AUD_PHACC_FREQ_8LSB, 0x4a },
{ AUD_DEEMPHGAIN_R, 0x6680 },
{ AUD_DEEMPHNUMER1_R, 0x353DE },
{ AUD_DEEMPHNUMER2_R, 0x1B1 },
{ AUD_DEEMPHDENOM1_R, 0x0F3D0 },
{ AUD_DEEMPHDENOM2_R, 0x0 },
{ AUD_FM_MODE_ENABLE, 0x7 },
{ AUD_POLYPH80SCALEFAC, 0x3 },
{ AUD_AFE_12DB_EN, 0x1 },
{ AAGC_GAIN, 0x0 },
{ AAGC_HYST, 0x18 },
{ AAGC_DEF, 0x20 },
{ AUD_DN0_FREQ, 0x0 },
{ AUD_POLY0_DDS_CONSTANT, 0x0E4DB2 },
{ AUD_DCOC_0_SRC, 0x21 },
{ AUD_IIR1_0_SEL, 0x0 },
{ AUD_IIR1_0_SHIFT, 0x7 },
{ AUD_IIR1_1_SEL, 0x2 },
{ AUD_IIR1_1_SHIFT, 0x0 },
{ AUD_DCOC_1_SRC, 0x3 },
{ AUD_DCOC1_SHIFT, 0x0 },
{ AUD_DCOC_PASS_IN, 0x0 },
{ AUD_IIR1_2_SEL, 0x23 },
{ AUD_IIR1_2_SHIFT, 0x0 },
{ AUD_IIR1_3_SEL, 0x4 },
{ AUD_IIR1_3_SHIFT, 0x7 },
{ AUD_IIR1_4_SEL, 0x5 },
{ AUD_IIR1_4_SHIFT, 0x7 },
{ AUD_IIR3_0_SEL, 0x7 },
{ AUD_IIR3_0_SHIFT, 0x0 },
{ AUD_DEEMPH0_SRC_SEL, 0x11 },
{ AUD_DEEMPH0_SHIFT, 0x0 },
{ AUD_DEEMPH0_G0, 0x7000 },
{ AUD_DEEMPH0_A0, 0x0 },
{ AUD_DEEMPH0_B0, 0x0 },
{ AUD_DEEMPH0_A1, 0x0 },
{ AUD_DEEMPH0_B1, 0x0 },
{ AUD_DEEMPH1_SRC_SEL, 0x11 },
{ AUD_DEEMPH1_SHIFT, 0x0 },
{ AUD_DEEMPH1_G0, 0x7000 },
{ AUD_DEEMPH1_A0, 0x0 },
{ AUD_DEEMPH1_B0, 0x0 },
{ AUD_DEEMPH1_A1, 0x0 },
{ AUD_DEEMPH1_B1, 0x0 },
{ AUD_OUT0_SEL, 0x3F },
{ AUD_OUT1_SEL, 0x3F },
{ AUD_DMD_RA_DDS, 0x0F5C285 },
{ AUD_PLL_INT, 0x1E },
{ AUD_PLL_DDS, 0x0 },
{ AUD_PLL_FRAC, 0x0E542 },
// setup QAM registers
{ AUD_RATE_ADJ1, 0x00000100 },
{ AUD_RATE_ADJ2, 0x00000200 },
{ AUD_RATE_ADJ3, 0x00000300 },
{ AUD_RATE_ADJ4, 0x00000400 },
{ AUD_RATE_ADJ5, 0x00000500 },
{ AUD_RATE_THRES_DMD, 0x000000C0 },
{ /* end of list */ },
};
static const struct rlist nicam_l[] = {
// setup QAM registers
{ AUD_RATE_ADJ1, 0x00000060 },
{ AUD_RATE_ADJ2, 0x000000F9 },
{ AUD_RATE_ADJ3, 0x000001CC },
{ AUD_RATE_ADJ4, 0x000002B3 },
{ AUD_RATE_ADJ5, 0x00000726 },
{ AUD_DEEMPHDENOM1_R, 0x0000F3D0 },
{ AUD_DEEMPHDENOM2_R, 0x00000000 },
{ AUD_ERRLOGPERIOD_R, 0x00000064 },
{ AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF },
{ AUD_ERRINTRPTTHSHLD2_R, 0x0000001F },
{ AUD_ERRINTRPTTHSHLD3_R, 0x0000000F },
{ AUD_POLYPH80SCALEFAC, 0x00000003 },
{ AUD_DMD_RA_DDS, 0x00C00000 },
{ AUD_PLL_INT, 0x0000001E },
{ AUD_PLL_DDS, 0x00000000 },
{ AUD_PLL_FRAC, 0x0000E542 },
{ AUD_START_TIMER, 0x00000000 },
{ AUD_DEEMPHNUMER1_R, 0x000353DE },
{ AUD_DEEMPHNUMER2_R, 0x000001B1 },
{ AUD_PDF_DDS_CNST_BYTE2, 0x06 },
{ AUD_PDF_DDS_CNST_BYTE1, 0x82 },
{ AUD_QAM_MODE, 0x05 },
{ AUD_PDF_DDS_CNST_BYTE0, 0x12 },
{ AUD_PHACC_FREQ_8MSB, 0x34 },
{ AUD_PHACC_FREQ_8LSB, 0x4C },
{ AUD_DEEMPHGAIN_R, 0x00006680 },
{ AUD_RATE_THRES_DMD, 0x000000C0 },
{ /* end of list */ },
} ;
dprintk("%s (status: devel), stereo : %d\n",__FUNCTION__,stereo);
if (!stereo) {
/* AM mono sound */
set_audio_start(core, 0x0004,
0x100c /* FIXME again */);
set_audio_registers(core, nicam_l_mono);
} else {
set_audio_start(core, 0x0010,
0x1924 /* FIXME again */);
set_audio_registers(core, nicam_l);
}
set_audio_finish(core);
}
static void set_audio_standard_PAL_I(struct cx88_core *core, int stereo)
{
static const struct rlist pal_i_fm_mono[] = {
{AUD_ERRLOGPERIOD_R, 0x00000064},
{AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
{AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
{AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
{AUD_PDF_DDS_CNST_BYTE2, 0x06},
{AUD_PDF_DDS_CNST_BYTE1, 0x82},
{AUD_PDF_DDS_CNST_BYTE0, 0x12},
{AUD_QAM_MODE, 0x05},
{AUD_PHACC_FREQ_8MSB, 0x3a},
{AUD_PHACC_FREQ_8LSB, 0x93},
{AUD_DMD_RA_DDS, 0x002a4f2f},
{AUD_PLL_INT, 0x0000001e},
{AUD_PLL_DDS, 0x00000004},
{AUD_PLL_FRAC, 0x0000e542},
{AUD_RATE_ADJ1, 0x00000100},
{AUD_RATE_ADJ2, 0x00000200},
{AUD_RATE_ADJ3, 0x00000300},
{AUD_RATE_ADJ4, 0x00000400},
{AUD_RATE_ADJ5, 0x00000500},
{AUD_THR_FR, 0x00000000},
{AUD_PILOT_BQD_1_K0, 0x0000755b},
{AUD_PILOT_BQD_1_K1, 0x00551340},
{AUD_PILOT_BQD_1_K2, 0x006d30be},
{AUD_PILOT_BQD_1_K3, 0xffd394af},
{AUD_PILOT_BQD_1_K4, 0x00400000},
{AUD_PILOT_BQD_2_K0, 0x00040000},
{AUD_PILOT_BQD_2_K1, 0x002a4841},
{AUD_PILOT_BQD_2_K2, 0x00400000},
{AUD_PILOT_BQD_2_K3, 0x00000000},
{AUD_PILOT_BQD_2_K4, 0x00000000},
{AUD_MODE_CHG_TIMER, 0x00000060},
{AUD_AFE_12DB_EN, 0x00000001},
{AAGC_HYST, 0x0000000a},
{AUD_CORDIC_SHIFT_0, 0x00000007},
{AUD_CORDIC_SHIFT_1, 0x00000007},
{AUD_C1_UP_THR, 0x00007000},
{AUD_C1_LO_THR, 0x00005400},
{AUD_C2_UP_THR, 0x00005400},
{AUD_C2_LO_THR, 0x00003000},
{AUD_DCOC_0_SRC, 0x0000001a},
{AUD_DCOC0_SHIFT, 0x00000000},
{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
{AUD_DCOC_PASS_IN, 0x00000003},
{AUD_IIR3_0_SEL, 0x00000021},
{AUD_DN2_AFC, 0x00000002},
{AUD_DCOC_1_SRC, 0x0000001b},
{AUD_DCOC1_SHIFT, 0x00000000},
{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
{AUD_IIR3_1_SEL, 0x00000023},
{AUD_DN0_FREQ, 0x000035a3},
{AUD_DN2_FREQ, 0x000029c7},
{AUD_CRDC0_SRC_SEL, 0x00000511},
{AUD_IIR1_0_SEL, 0x00000001},
{AUD_IIR1_1_SEL, 0x00000000},
{AUD_IIR3_2_SEL, 0x00000003},
{AUD_IIR3_2_SHIFT, 0x00000000},
{AUD_IIR3_0_SEL, 0x00000002},
{AUD_IIR2_0_SEL, 0x00000021},
{AUD_IIR2_0_SHIFT, 0x00000002},
{AUD_DEEMPH0_SRC_SEL, 0x0000000b},
{AUD_DEEMPH1_SRC_SEL, 0x0000000b},
{AUD_POLYPH80SCALEFAC, 0x00000001},
{AUD_START_TIMER, 0x00000000},
{ /* end of list */ },
};
static const struct rlist pal_i_nicam[] = {
{ AUD_RATE_ADJ1, 0x00000010 },
{ AUD_RATE_ADJ2, 0x00000040 },
{ AUD_RATE_ADJ3, 0x00000100 },
{ AUD_RATE_ADJ4, 0x00000400 },
{ AUD_RATE_ADJ5, 0x00001000 },
// { AUD_DMD_RA_DDS, 0x00c0d5ce },
{ AUD_DEEMPHGAIN_R, 0x000023c2 },
{ AUD_DEEMPHNUMER1_R, 0x0002a7bc },
{ AUD_DEEMPHNUMER2_R, 0x0003023e },
{ AUD_DEEMPHDENOM1_R, 0x0000f3d0 },
{ AUD_DEEMPHDENOM2_R, 0x00000000 },
{ AUD_DEEMPHDENOM2_R, 0x00000000 },
{ AUD_ERRLOGPERIOD_R, 0x00000fff },
{ AUD_ERRINTRPTTHSHLD1_R, 0x000003ff },
{ AUD_ERRINTRPTTHSHLD2_R, 0x000000ff },
{ AUD_ERRINTRPTTHSHLD3_R, 0x0000003f },
{ AUD_POLYPH80SCALEFAC, 0x00000003 },
{ AUD_PDF_DDS_CNST_BYTE2, 0x06 },
{ AUD_PDF_DDS_CNST_BYTE1, 0x82 },
{ AUD_PDF_DDS_CNST_BYTE0, 0x16 },
{ AUD_QAM_MODE, 0x05 },
{ AUD_PDF_DDS_CNST_BYTE0, 0x12 },
{ AUD_PHACC_FREQ_8MSB, 0x3a },
{ AUD_PHACC_FREQ_8LSB, 0x93 },
{ /* end of list */ },
};
dprintk("%s (status: devel), stereo : %d\n",__FUNCTION__,stereo);
if (!stereo) {
// FM mono
set_audio_start(core, 0x0004, EN_DMTRX_SUMDIFF | EN_A2_FORCE_MONO1);
set_audio_registers(core, pal_i_fm_mono);
} else {
// Nicam Stereo
set_audio_start(core, 0x0010, EN_DMTRX_LR | EN_DMTRX_BYPASS | EN_NICAM_AUTO_STEREO);
set_audio_registers(core, pal_i_nicam);
}
set_audio_finish(core);
}
static void set_audio_standard_A2(struct cx88_core *core)
{
/* from dscaler cvs */
static const struct rlist a2_common[] = {
{ AUD_PDF_DDS_CNST_BYTE2, 0x06 },
{ AUD_PDF_DDS_CNST_BYTE1, 0x82 },
{ AUD_PDF_DDS_CNST_BYTE0, 0x12 },
{ AUD_QAM_MODE, 0x05 },
{ AUD_PHACC_FREQ_8MSB, 0x34 },
{ AUD_PHACC_FREQ_8LSB, 0x4c },
{ AUD_RATE_ADJ1, 0x00001000 },
{ AUD_RATE_ADJ2, 0x00002000 },
{ AUD_RATE_ADJ3, 0x00003000 },
{ AUD_RATE_ADJ4, 0x00004000 },
{ AUD_RATE_ADJ5, 0x00005000 },
{ AUD_THR_FR, 0x00000000 },
{ AAGC_HYST, 0x0000001a },
{ AUD_PILOT_BQD_1_K0, 0x0000755b },
{ AUD_PILOT_BQD_1_K1, 0x00551340 },
{ AUD_PILOT_BQD_1_K2, 0x006d30be },
{ AUD_PILOT_BQD_1_K3, 0xffd394af },
{ AUD_PILOT_BQD_1_K4, 0x00400000 },
{ AUD_PILOT_BQD_2_K0, 0x00040000 },
{ AUD_PILOT_BQD_2_K1, 0x002a4841 },
{ AUD_PILOT_BQD_2_K2, 0x00400000 },
{ AUD_PILOT_BQD_2_K3, 0x00000000 },
{ AUD_PILOT_BQD_2_K4, 0x00000000 },
{ AUD_MODE_CHG_TIMER, 0x00000040 },
{ AUD_START_TIMER, 0x00000200 },
{ AUD_AFE_12DB_EN, 0x00000000 },
{ AUD_CORDIC_SHIFT_0, 0x00000007 },
{ AUD_CORDIC_SHIFT_1, 0x00000007 },
{ AUD_DEEMPH0_G0, 0x00000380 },
{ AUD_DEEMPH1_G0, 0x00000380 },
{ AUD_DCOC_0_SRC, 0x0000001a },
{ AUD_DCOC0_SHIFT, 0x00000000 },
{ AUD_DCOC_0_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_0_SHIFT_IN1, 0x00000008 },
{ AUD_DCOC_PASS_IN, 0x00000003 },
{ AUD_IIR3_0_SEL, 0x00000021 },
{ AUD_DN2_AFC, 0x00000002 },
{ AUD_DCOC_1_SRC, 0x0000001b },
{ AUD_DCOC1_SHIFT, 0x00000000 },
{ AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
{ AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
{ AUD_IIR3_1_SEL, 0x00000023 },
{ AUD_RDSI_SEL, 0x00000017 },
{ AUD_RDSI_SHIFT, 0x00000000 },
{ AUD_RDSQ_SEL, 0x00000017 },
{ AUD_RDSQ_SHIFT, 0x00000000 },
{ AUD_POLYPH80SCALEFAC, 0x00000001 },
{ /* end of list */ },
};
static const struct rlist a2_table1[] = {
// PAL-BG
{ AUD_DMD_RA_DDS, 0x002a73bd },
{ AUD_C1_UP_THR, 0x00007000 },
{ AUD_C1_LO_THR, 0x00005400 },
{ AUD_C2_UP_THR, 0x00005400 },
{ AUD_C2_LO_THR, 0x00003000 },
{ /* end of list */ },
};
static const struct rlist a2_table2[] = {
// PAL-DK
{ AUD_DMD_RA_DDS, 0x002a73bd },
{ AUD_C1_UP_THR, 0x00007000 },
{ AUD_C1_LO_THR, 0x00005400 },
{ AUD_C2_UP_THR, 0x00005400 },
{ AUD_C2_LO_THR, 0x00003000 },
{ AUD_DN0_FREQ, 0x00003a1c },
{ AUD_DN2_FREQ, 0x0000d2e0 },
{ /* end of list */ },
};
static const struct rlist a2_table3[] = {
// unknown, probably NTSC-M
{ AUD_DMD_RA_DDS, 0x002a2873 },
{ AUD_C1_UP_THR, 0x00003c00 },
{ AUD_C1_LO_THR, 0x00003000 },
{ AUD_C2_UP_THR, 0x00006000 },
{ AUD_C2_LO_THR, 0x00003c00 },
{ AUD_DN0_FREQ, 0x00002836 },
{ AUD_DN1_FREQ, 0x00003418 },
{ AUD_DN2_FREQ, 0x000029c7 },
{ AUD_POLY0_DDS_CONSTANT, 0x000a7540 },
{ /* end of list */ },
};
set_audio_start(core, 0x0004, EN_DMTRX_SUMDIFF | EN_A2_AUTO_STEREO);
set_audio_registers(core, a2_common);
switch (core->tvaudio) {
case WW_A2_BG:
dprintk("%s PAL-BG A2 (status: known-good)\n",__FUNCTION__);
set_audio_registers(core, a2_table1);
break;
case WW_A2_DK:
dprintk("%s PAL-DK A2 (status: known-good)\n",__FUNCTION__);
set_audio_registers(core, a2_table2);
break;
case WW_A2_M:
dprintk("%s NTSC-M A2 (status: unknown)\n",__FUNCTION__);
set_audio_registers(core, a2_table3);
break;
};
set_audio_finish(core);
}
static void set_audio_standard_EIAJ(struct cx88_core *core)
{
static const struct rlist eiaj[] = {
/* TODO: eiaj register settings are not there yet ... */
{ /* end of list */ },
};
dprintk("%s (status: unknown)\n",__FUNCTION__);
set_audio_start(core, 0x0002, EN_EIAJ_AUTO_STEREO);
set_audio_registers(core, eiaj);
set_audio_finish(core);
}
static void set_audio_standard_FM(struct cx88_core *core, enum cx88_deemph_type deemph)
{
static const struct rlist fm_deemph_50[] = {
{ AUD_DEEMPH0_G0, 0x0C45 },
{ AUD_DEEMPH0_A0, 0x6262 },
{ AUD_DEEMPH0_B0, 0x1C29 },
{ AUD_DEEMPH0_A1, 0x3FC66},
{ AUD_DEEMPH0_B1, 0x399A },
{ AUD_DEEMPH1_G0, 0x0D80 },
{ AUD_DEEMPH1_A0, 0x6262 },
{ AUD_DEEMPH1_B0, 0x1C29 },
{ AUD_DEEMPH1_A1, 0x3FC66},
{ AUD_DEEMPH1_B1, 0x399A},
{ AUD_POLYPH80SCALEFAC, 0x0003},
{ /* end of list */ },
};
static const struct rlist fm_deemph_75[] = {
{ AUD_DEEMPH0_G0, 0x091B },
{ AUD_DEEMPH0_A0, 0x6B68 },
{ AUD_DEEMPH0_B0, 0x11EC },
{ AUD_DEEMPH0_A1, 0x3FC66},
{ AUD_DEEMPH0_B1, 0x399A },
{ AUD_DEEMPH1_G0, 0x0AA0 },
{ AUD_DEEMPH1_A0, 0x6B68 },
{ AUD_DEEMPH1_B0, 0x11EC },
{ AUD_DEEMPH1_A1, 0x3FC66},
{ AUD_DEEMPH1_B1, 0x399A},
{ AUD_POLYPH80SCALEFAC, 0x0003},
{ /* end of list */ },
};
/* It is enough to leave default values? */
static const struct rlist fm_no_deemph[] = {
{ AUD_POLYPH80SCALEFAC, 0x0003},
{ /* end of list */ },
};
dprintk("%s (status: unknown)\n",__FUNCTION__);
set_audio_start(core, 0x0020, EN_FMRADIO_AUTO_STEREO);
switch (deemph)
{
case FM_NO_DEEMPH:
set_audio_registers(core, fm_no_deemph);
break;
case FM_DEEMPH_50:
set_audio_registers(core, fm_deemph_50);
break;
case FM_DEEMPH_75:
set_audio_registers(core, fm_deemph_75);
break;
}
set_audio_finish(core);
}
/* ----------------------------------------------------------- */
void cx88_set_tvaudio(struct cx88_core *core)
{
switch (core->tvaudio) {
case WW_BTSC:
set_audio_standard_BTSC(core,0);
break;
case WW_NICAM_BGDKL:
set_audio_standard_NICAM_L(core,0);
break;
case WW_NICAM_I:
set_audio_standard_PAL_I(core,0);
break;
case WW_A2_BG:
case WW_A2_DK:
case WW_A2_M:
set_audio_standard_A2(core);
break;
case WW_EIAJ:
set_audio_standard_EIAJ(core);
break;
case WW_FM:
set_audio_standard_FM(core,FM_NO_DEEMPH);
break;
case WW_SYSTEM_L_AM:
set_audio_standard_NICAM_L(core, 1);
break;
case WW_NONE:
default:
printk("%s/0: unknown tv audio mode [%d]\n",
core->name, core->tvaudio);
break;
}
return;
}
void cx88_newstation(struct cx88_core *core)
{
core->audiomode_manual = UNSET;
switch (core->tvaudio) {
case WW_SYSTEM_L_AM:
/* try nicam ... */
core->audiomode_current = V4L2_TUNER_MODE_STEREO;
set_audio_standard_NICAM_L(core, 1);
break;
}
}
void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t)
{
static char *m[] = {"stereo", "dual mono", "mono", "sap"};
static char *p[] = {"no pilot", "pilot c1", "pilot c2", "?"};
u32 reg,mode,pilot;
reg = cx_read(AUD_STATUS);
mode = reg & 0x03;
pilot = (reg >> 2) & 0x03;
if (core->astat != reg)
dprintk("AUD_STATUS: 0x%x [%s/%s] ctl=%s\n",
reg, m[mode], p[pilot],
aud_ctl_names[cx_read(AUD_CTL) & 63]);
core->astat = reg;
t->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_SAP |
V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
t->rxsubchans = V4L2_TUNER_SUB_MONO;
t->audmode = V4L2_TUNER_MODE_MONO;
switch (core->tvaudio) {
case WW_BTSC:
t->capability = V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_SAP;
t->rxsubchans = V4L2_TUNER_SUB_STEREO;
if (1 == pilot) {
/* SAP */
t->rxsubchans |= V4L2_TUNER_SUB_SAP;
}
break;
case WW_A2_BG:
case WW_A2_DK:
case WW_A2_M:
if (1 == pilot) {
/* stereo */
t->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
if (0 == mode)
t->audmode = V4L2_TUNER_MODE_STEREO;
}
if (2 == pilot) {
/* dual language -- FIXME */
t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
t->audmode = V4L2_TUNER_MODE_LANG1;
}
break;
case WW_NICAM_BGDKL:
if (0 == mode) {
t->audmode = V4L2_TUNER_MODE_STEREO;
t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
}
break;
case WW_SYSTEM_L_AM:
if (0x0 == mode && !(cx_read(AUD_INIT) & 0x04)) {
t->audmode = V4L2_TUNER_MODE_STEREO;
t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
}
break ;
default:
/* nothing */
break;
}
return;
}
void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
{
u32 ctl = UNSET;
u32 mask = UNSET;
if (manual) {
core->audiomode_manual = mode;
} else {
if (UNSET != core->audiomode_manual)
return;
}
core->audiomode_current = mode;
switch (core->tvaudio) {
case WW_BTSC:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
ctl = EN_BTSC_FORCE_MONO;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_SAP:
ctl = EN_BTSC_FORCE_SAP;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_STEREO:
ctl = EN_BTSC_AUTO_STEREO;
mask = 0x3f;
break;
}
break;
case WW_A2_BG:
case WW_A2_DK:
case WW_A2_M:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
ctl = EN_A2_FORCE_MONO1;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_LANG2:
ctl = EN_A2_AUTO_MONO2;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_STEREO:
ctl = EN_A2_AUTO_STEREO | EN_DMTRX_SUMR;
mask = 0x8bf;
break;
}
break;
case WW_NICAM_BGDKL:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
ctl = EN_NICAM_FORCE_MONO1;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_LANG1:
ctl = EN_NICAM_AUTO_MONO2;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_STEREO:
ctl = EN_NICAM_FORCE_STEREO | EN_DMTRX_LR;
mask = 0x93f;
break;
}
break;
case WW_SYSTEM_L_AM:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1: /* FIXME */
set_audio_standard_NICAM_L(core, 0);
break;
case V4L2_TUNER_MODE_STEREO:
set_audio_standard_NICAM_L(core, 1);
break;
}
break;
case WW_NICAM_I:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
set_audio_standard_PAL_I(core, 0);
break;
case V4L2_TUNER_MODE_STEREO:
set_audio_standard_PAL_I(core, 1);
break;
}
break;
case WW_FM:
switch (mode) {
case V4L2_TUNER_MODE_MONO:
ctl = EN_FMRADIO_FORCE_MONO;
mask = 0x3f;
break;
case V4L2_TUNER_MODE_STEREO:
ctl = EN_FMRADIO_AUTO_STEREO;
mask = 0x3f;
break;
}
break;
}
if (UNSET != ctl) {
dprintk("cx88_set_stereo: mask 0x%x, ctl 0x%x "
"[status=0x%x,ctl=0x%x,vol=0x%x]\n",
mask, ctl, cx_read(AUD_STATUS),
cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));
cx_andor(AUD_CTL, mask, ctl);
}
return;
}
int cx88_audio_thread(void *data)
{
struct cx88_core *core = data;
struct v4l2_tuner t;
u32 mode = 0;
dprintk("cx88: tvaudio thread started\n");
for (;;) {
msleep_interruptible(1000);
if (kthread_should_stop())
break;
/* just monitor the audio status for now ... */
memset(&t,0,sizeof(t));
cx88_get_stereo(core,&t);
if (UNSET != core->audiomode_manual)
/* manually set, don't do anything. */
continue;
/* monitor signal */
if (t.rxsubchans & V4L2_TUNER_SUB_STEREO)
mode = V4L2_TUNER_MODE_STEREO;
else
mode = V4L2_TUNER_MODE_MONO;
if (mode == core->audiomode_current)
continue;
/* automatically switch to best available mode */
cx88_set_stereo(core, mode, 0);
}
dprintk("cx88: tvaudio thread exiting\n");
return 0;
}
/* ----------------------------------------------------------- */
EXPORT_SYMBOL(cx88_set_tvaudio);
EXPORT_SYMBOL(cx88_newstation);
EXPORT_SYMBOL(cx88_set_stereo);
EXPORT_SYMBOL(cx88_get_stereo);
EXPORT_SYMBOL(cx88_audio_thread);
/*
* Local variables:
* c-basic-offset: 8
* End:
* kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
*/
