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linux/drivers/media/video/cx88/cx88-tvaudio.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

1029 lines
28 KiB
C
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/*
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/errno.h>
#include <linux/freezer.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/poll.h>
#include <linux/signal.h>
#include <linux/ioport.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include "cx88.h"
static unsigned int audio_debug;
module_param(audio_debug, int, 0644);
MODULE_PARM_DESC(audio_debug, "enable debug messages [audio]");
static unsigned int always_analog;
module_param(always_analog,int,0644);
MODULE_PARM_DESC(always_analog,"force analog audio out");
static unsigned int radio_deemphasis;
module_param(radio_deemphasis,int,0644);
MODULE_PARM_DESC(radio_deemphasis, "Radio deemphasis time constant, "
"0=None, 1=50us (elsewhere), 2=75us (USA)");
#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)
{
/* mute */
cx_write(AUD_VOL_CTL, (1 << 6));
/* start programming */
cx_write(AUD_INIT, mode);
cx_write(AUD_INIT_LD, 0x0001);
cx_write(AUD_SOFT_RESET, 0x0001);
}
static void set_audio_finish(struct cx88_core *core, u32 ctl)
{
u32 volume;
/* restart dma; This avoids buzz in NICAM and is good in others */
cx88_stop_audio_dma(core);
cx_write(AUD_RATE_THRES_DMD, 0x000000C0);
cx88_start_audio_dma(core);
if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
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); */
}
if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
ctl |= EN_DAC_ENABLE;
cx_write(AUD_CTL, ctl);
}
/* finish programming */
cx_write(AUD_SOFT_RESET, 0x0000);
/* unmute */
volume = cx_sread(SHADOW_AUD_VOL_CTL);
cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
core->last_change = jiffies;
}
/* ----------------------------------------------------------- */
static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
u32 mode)
{
static const struct rlist btsc[] = {
{AUD_AFE_12DB_EN, 0x00000001},
{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_AFE_12DB_EN, 0x00000001},
{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 */ },
};
mode |= EN_FMRADIO_EN_RDS;
if (sap) {
dprintk("%s SAP (status: unknown)\n", __func__);
set_audio_start(core, SEL_SAP);
set_audio_registers(core, btsc_sap);
set_audio_finish(core, mode);
} else {
dprintk("%s (status: known-good)\n", __func__);
set_audio_start(core, SEL_BTSC);
set_audio_registers(core, btsc);
set_audio_finish(core, mode);
}
}
static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
{
static const struct rlist nicam_l[] = {
{AUD_AFE_12DB_EN, 0x00000001},
{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_PDF_DDS_CNST_BYTE0, 0x12},
{AUD_QAM_MODE, 0x05},
{AUD_PHACC_FREQ_8MSB, 0x34},
{AUD_PHACC_FREQ_8LSB, 0x4C},
{AUD_DEEMPHGAIN_R, 0x00006680},
{AUD_RATE_THRES_DMD, 0x000000C0},
{ /* end of list */ },
};
static const struct rlist nicam_bgdki_common[] = {
{AUD_AFE_12DB_EN, 0x00000001},
{AUD_RATE_ADJ1, 0x00000010},
{AUD_RATE_ADJ2, 0x00000040},
{AUD_RATE_ADJ3, 0x00000100},
{AUD_RATE_ADJ4, 0x00000400},
{AUD_RATE_ADJ5, 0x00001000},
{AUD_ERRLOGPERIOD_R, 0x00000fff},
{AUD_ERRINTRPTTHSHLD1_R, 0x000003ff},
{AUD_ERRINTRPTTHSHLD2_R, 0x000000ff},
{AUD_ERRINTRPTTHSHLD3_R, 0x0000003f},
{AUD_POLYPH80SCALEFAC, 0x00000003},
{AUD_DEEMPHGAIN_R, 0x000023c2},
{AUD_DEEMPHNUMER1_R, 0x0002a7bc},
{AUD_DEEMPHNUMER2_R, 0x0003023e},
{AUD_DEEMPHDENOM1_R, 0x0000f3d0},
{AUD_DEEMPHDENOM2_R, 0x00000000},
{AUD_PDF_DDS_CNST_BYTE2, 0x06},
{AUD_PDF_DDS_CNST_BYTE1, 0x82},
{AUD_QAM_MODE, 0x05},
{ /* end of list */ },
};
static const struct rlist nicam_i[] = {
{AUD_PDF_DDS_CNST_BYTE0, 0x12},
{AUD_PHACC_FREQ_8MSB, 0x3a},
{AUD_PHACC_FREQ_8LSB, 0x93},
{ /* end of list */ },
};
static const struct rlist nicam_default[] = {
{AUD_PDF_DDS_CNST_BYTE0, 0x16},
{AUD_PHACC_FREQ_8MSB, 0x34},
{AUD_PHACC_FREQ_8LSB, 0x4c},
{ /* end of list */ },
};
set_audio_start(core,SEL_NICAM);
switch (core->tvaudio) {
case WW_L:
dprintk("%s SECAM-L NICAM (status: devel)\n", __func__);
set_audio_registers(core, nicam_l);
break;
case WW_I:
dprintk("%s PAL-I NICAM (status: known-good)\n", __func__);
set_audio_registers(core, nicam_bgdki_common);
set_audio_registers(core, nicam_i);
break;
default:
dprintk("%s PAL-BGDK NICAM (status: known-good)\n", __func__);
set_audio_registers(core, nicam_bgdki_common);
set_audio_registers(core, nicam_default);
break;
};
mode |= EN_DMTRX_LR | EN_DMTRX_BYPASS;
set_audio_finish(core, mode);
}
static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
{
static const struct rlist a2_bgdk_common[] = {
{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, 0x34},
{AUD_PHACC_FREQ_8LSB, 0x4c},
{AUD_RATE_ADJ1, 0x00000100},
{AUD_RATE_ADJ2, 0x00000200},
{AUD_RATE_ADJ3, 0x00000300},
{AUD_RATE_ADJ4, 0x00000400},
{AUD_RATE_ADJ5, 0x00000500},
{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_AFE_12DB_EN, 0x00000001},
{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_PLL_INT, 0x0000001e},
{AUD_PLL_DDS, 0x00000000},
{AUD_PLL_FRAC, 0x0000e542},
{AUD_POLYPH80SCALEFAC, 0x00000001},
{AUD_START_TIMER, 0x00000000},
{ /* end of list */ },
};
static const struct rlist a2_bg[] = {
{AUD_DMD_RA_DDS, 0x002a4f2f},
{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_dk[] = {
{AUD_DMD_RA_DDS, 0x002a4f2f},
{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 a1_i[] = {
{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 am_l[] = {
{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, 0x00006680},
{AUD_DEEMPHNUMER1_R, 0x000353DE},
{AUD_DEEMPHNUMER2_R, 0x000001B1},
{AUD_DEEMPHDENOM1_R, 0x0000F3D0},
{AUD_DEEMPHDENOM2_R, 0x00000000},
{AUD_FM_MODE_ENABLE, 0x00000007},
{AUD_POLYPH80SCALEFAC, 0x00000003},
{AUD_AFE_12DB_EN, 0x00000001},
{AAGC_GAIN, 0x00000000},
{AAGC_HYST, 0x00000018},
{AAGC_DEF, 0x00000020},
{AUD_DN0_FREQ, 0x00000000},
{AUD_POLY0_DDS_CONSTANT, 0x000E4DB2},
{AUD_DCOC_0_SRC, 0x00000021},
{AUD_IIR1_0_SEL, 0x00000000},
{AUD_IIR1_0_SHIFT, 0x00000007},
{AUD_IIR1_1_SEL, 0x00000002},
{AUD_IIR1_1_SHIFT, 0x00000000},
{AUD_DCOC_1_SRC, 0x00000003},
{AUD_DCOC1_SHIFT, 0x00000000},
{AUD_DCOC_PASS_IN, 0x00000000},
{AUD_IIR1_2_SEL, 0x00000023},
{AUD_IIR1_2_SHIFT, 0x00000000},
{AUD_IIR1_3_SEL, 0x00000004},
{AUD_IIR1_3_SHIFT, 0x00000007},
{AUD_IIR1_4_SEL, 0x00000005},
{AUD_IIR1_4_SHIFT, 0x00000007},
{AUD_IIR3_0_SEL, 0x00000007},
{AUD_IIR3_0_SHIFT, 0x00000000},
{AUD_DEEMPH0_SRC_SEL, 0x00000011},
{AUD_DEEMPH0_SHIFT, 0x00000000},
{AUD_DEEMPH0_G0, 0x00007000},
{AUD_DEEMPH0_A0, 0x00000000},
{AUD_DEEMPH0_B0, 0x00000000},
{AUD_DEEMPH0_A1, 0x00000000},
{AUD_DEEMPH0_B1, 0x00000000},
{AUD_DEEMPH1_SRC_SEL, 0x00000011},
{AUD_DEEMPH1_SHIFT, 0x00000000},
{AUD_DEEMPH1_G0, 0x00007000},
{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_DMD_RA_DDS, 0x00F5C285},
{AUD_PLL_INT, 0x0000001E},
{AUD_PLL_DDS, 0x00000000},
{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_RATE_THRES_DMD, 0x000000C0},
{ /* end of list */ },
};
static const struct rlist a2_deemph50[] = {
{AUD_DEEMPH0_G0, 0x00000380},
{AUD_DEEMPH1_G0, 0x00000380},
{AUD_DEEMPHGAIN_R, 0x000011e1},
{AUD_DEEMPHNUMER1_R, 0x0002a7bc},
{AUD_DEEMPHNUMER2_R, 0x0003023c},
{ /* end of list */ },
};
set_audio_start(core, SEL_A2);
switch (core->tvaudio) {
case WW_BG:
dprintk("%s PAL-BG A1/2 (status: known-good)\n", __func__);
set_audio_registers(core, a2_bgdk_common);
set_audio_registers(core, a2_bg);
set_audio_registers(core, a2_deemph50);
break;
case WW_DK:
dprintk("%s PAL-DK A1/2 (status: known-good)\n", __func__);
set_audio_registers(core, a2_bgdk_common);
set_audio_registers(core, a2_dk);
set_audio_registers(core, a2_deemph50);
break;
case WW_I:
dprintk("%s PAL-I A1 (status: known-good)\n", __func__);
set_audio_registers(core, a1_i);
set_audio_registers(core, a2_deemph50);
break;
case WW_L:
dprintk("%s AM-L (status: devel)\n", __func__);
set_audio_registers(core, am_l);
break;
default:
dprintk("%s Warning: wrong value\n", __func__);
return;
break;
};
mode |= EN_FMRADIO_EN_RDS | EN_DMTRX_SUMDIFF;
set_audio_finish(core, mode);
}
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", __func__);
set_audio_start(core, SEL_EIAJ);
set_audio_registers(core, eiaj);
set_audio_finish(core, EN_EIAJ_AUTO_STEREO);
}
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? */
/* No, it's not! The deemphasis registers are reset to the 75us
* values by default. Analyzing the spectrum of the decoded audio
* reveals that "no deemphasis" is the same as 75 us, while the 50 us
* setting results in less deemphasis. */
static const struct rlist fm_no_deemph[] = {
{AUD_POLYPH80SCALEFAC, 0x0003},
{ /* end of list */ },
};
dprintk("%s (status: unknown)\n", __func__);
set_audio_start(core, SEL_FMRADIO);
switch (deemph) {
default:
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, EN_FMRADIO_AUTO_STEREO);
}
/* ----------------------------------------------------------- */
static int cx88_detect_nicam(struct cx88_core *core)
{
int i, j = 0;
dprintk("start nicam autodetect.\n");
for (i = 0; i < 6; i++) {
/* if bit1=1 then nicam is detected */
j += ((cx_read(AUD_NICAM_STATUS2) & 0x02) >> 1);
if (j == 1) {
dprintk("nicam is detected.\n");
return 1;
}
/* wait a little bit for next reading status */
msleep(10);
}
dprintk("nicam is not detected.\n");
return 0;
}
void cx88_set_tvaudio(struct cx88_core *core)
{
switch (core->tvaudio) {
case WW_BTSC:
set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
break;
case WW_BG:
case WW_DK:
case WW_M:
case WW_I:
case WW_L:
/* prepare all dsp registers */
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
/* set nicam mode - otherwise
AUD_NICAM_STATUS2 contains wrong values */
set_audio_standard_NICAM(core, EN_NICAM_AUTO_STEREO);
if (0 == cx88_detect_nicam(core)) {
/* fall back to fm / am mono */
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
core->audiomode_current = V4L2_TUNER_MODE_MONO;
core->use_nicam = 0;
} else {
core->use_nicam = 1;
}
break;
case WW_EIAJ:
set_audio_standard_EIAJ(core);
break;
case WW_FM:
set_audio_standard_FM(core, radio_deemphasis);
break;
case WW_I2SADC:
set_audio_start(core, 0x01);
/* Slave/Philips/Autobaud */
cx_write(AUD_I2SINPUTCNTL, 0);
/* Switch to "I2S ADC mode" */
cx_write(AUD_I2SCNTL, 0x1);
set_audio_finish(core, EN_I2SIN_ENABLE);
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;
core->last_change = jiffies;
}
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 = UNSET;
t->audmode = V4L2_TUNER_MODE_MONO;
switch (mode) {
case 0:
t->audmode = V4L2_TUNER_MODE_STEREO;
break;
case 1:
t->audmode = V4L2_TUNER_MODE_LANG2;
break;
case 2:
t->audmode = V4L2_TUNER_MODE_MONO;
break;
case 3:
t->audmode = V4L2_TUNER_MODE_SAP;
break;
}
switch (core->tvaudio) {
case WW_BTSC:
case WW_BG:
case WW_DK:
case WW_M:
case WW_EIAJ:
if (!core->use_nicam) {
t->rxsubchans = cx88_dsp_detect_stereo_sap(core);
break;
}
break;
default:
/* nothing */
break;
}
/* If software stereo detection is not supported... */
if (UNSET == t->rxsubchans) {
t->rxsubchans = V4L2_TUNER_SUB_MONO;
/* If the hardware itself detected stereo, also return
stereo as an available subchannel */
if (V4L2_TUNER_MODE_STEREO == t->audmode)
t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
}
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:
set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_MONO);
break;
case V4L2_TUNER_MODE_LANG1:
set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
break;
case V4L2_TUNER_MODE_LANG2:
set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
break;
}
break;
case WW_BG:
case WW_DK:
case WW_M:
case WW_I:
case WW_L:
if (1 == core->use_nicam) {
switch (mode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
set_audio_standard_NICAM(core,
EN_NICAM_FORCE_MONO1);
break;
case V4L2_TUNER_MODE_LANG2:
set_audio_standard_NICAM(core,
EN_NICAM_FORCE_MONO2);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
set_audio_standard_NICAM(core,
EN_NICAM_FORCE_STEREO);
break;
}
} else {
if ((core->tvaudio == WW_I) || (core->tvaudio == WW_L)) {
/* fall back to fm / am mono */
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
} else {
/* TODO: Add A2 autodection */
mask = 0x3f;
switch (mode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
ctl = EN_A2_FORCE_MONO1;
break;
case V4L2_TUNER_MODE_LANG2:
ctl = EN_A2_FORCE_MONO2;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
ctl = EN_A2_FORCE_STEREO;
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;
case WW_I2SADC:
/* DO NOTHING */
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");
set_freezable();
for (;;) {
msleep_interruptible(1000);
if (kthread_should_stop())
break;
try_to_freeze();
switch (core->tvaudio) {
case WW_BG:
case WW_DK:
case WW_M:
case WW_I:
case WW_L:
if (core->use_nicam)
goto hw_autodetect;
/* 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 and set stereo if available */
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);
break;
default:
hw_autodetect:
/* stereo autodetection is supported by hardware so
we don't need to do it manually. Do nothing. */
break;
}
}
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
*/
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