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linux/drivers/media/video/msp3400-kthreads.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

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/*
* Programming the mspx4xx sound processor family
*
* (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/freezer.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/msp3400.h>
#include <linux/kthread.h>
#include <linux/suspend.h>
#include "msp3400-driver.h"
/* this one uses the automatic sound standard detection of newer msp34xx
chip versions */
static struct {
int retval;
int main, second;
char *name;
} msp_stdlist[] = {
{ 0x0000, 0, 0, "could not detect sound standard" },
{ 0x0001, 0, 0, "autodetect start" },
{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
{ 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" },
{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
{ 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" },
{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
{ -1, 0, 0, NULL }, /* EOF */
};
static struct msp3400c_init_data_dem {
int fir1[6];
int fir2[6];
int cdo1;
int cdo2;
int ad_cv;
int mode_reg;
int dsp_src;
int dsp_matrix;
} msp3400c_init_data[] = {
{ /* AM (for carrier detect / msp3400) */
{75, 19, 36, 35, 39, 40},
{75, 19, 36, 35, 39, 40},
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0500, 0x0020, 0x3000
}, { /* AM (for carrier detect / msp3410) */
{-1, -1, -8, 2, 59, 126},
{-1, -1, -8, 2, 59, 126},
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0100, 0x0020, 0x3000
}, { /* FM Radio */
{-8, -8, 4, 6, 78, 107},
{-8, -8, 4, 6, 78, 107},
MSP_CARRIER(10.7), MSP_CARRIER(10.7),
0x00d0, 0x0480, 0x0020, 0x3000
}, { /* Terrestial FM-mono + FM-stereo */
{3, 18, 27, 48, 66, 72},
{3, 18, 27, 48, 66, 72},
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0480, 0x0030, 0x3000
}, { /* Sat FM-mono */
{ 1, 9, 14, 24, 33, 37},
{ 3, 18, 27, 48, 66, 72},
MSP_CARRIER(6.5), MSP_CARRIER(6.5),
0x00c6, 0x0480, 0x0000, 0x3000
}, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
{-2, -8, -10, 10, 50, 86},
{3, 18, 27, 48, 66, 72},
MSP_CARRIER(5.5), MSP_CARRIER(5.5),
0x00d0, 0x0040, 0x0120, 0x3000
}, { /* NICAM/FM -- I (6.0/6.552) */
{2, 4, -6, -4, 40, 94},
{3, 18, 27, 48, 66, 72},
MSP_CARRIER(6.0), MSP_CARRIER(6.0),
0x00d0, 0x0040, 0x0120, 0x3000
}, { /* NICAM/AM -- L (6.5/5.85) */
{-2, -8, -10, 10, 50, 86},
{-4, -12, -9, 23, 79, 126},
MSP_CARRIER(6.5), MSP_CARRIER(6.5),
0x00c6, 0x0140, 0x0120, 0x7c00
},
};
struct msp3400c_carrier_detect {
int cdo;
char *name;
};
static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
/* main carrier */
{ MSP_CARRIER(4.5), "4.5 NTSC" },
{ MSP_CARRIER(5.5), "5.5 PAL B/G" },
{ MSP_CARRIER(6.0), "6.0 PAL I" },
{ MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
};
static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
/* PAL B/G */
{ MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
{ MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
};
static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
/* PAL SAT / SECAM */
{ MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
{ MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
{ MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
{ MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
{ MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
{ MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
};
/* ------------------------------------------------------------------------ */
const char *msp_standard_std_name(int std)
{
int i;
for (i = 0; msp_stdlist[i].name != NULL; i++)
if (msp_stdlist[i].retval == std)
return msp_stdlist[i].name;
return "unknown";
}
static void msp_set_source(struct i2c_client *client, u16 src)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
if (msp_dolby) {
msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
} else {
msp_write_dsp(client, 0x0008, src);
msp_write_dsp(client, 0x0009, src);
}
msp_write_dsp(client, 0x000a, src);
msp_write_dsp(client, 0x000b, src);
msp_write_dsp(client, 0x000c, src);
if (state->has_scart2_out)
msp_write_dsp(client, 0x0041, src);
}
void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
{
msp_write_dem(client, 0x0093, cdo1 & 0xfff);
msp_write_dem(client, 0x009b, cdo1 >> 12);
msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
msp_write_dem(client, 0x00ab, cdo2 >> 12);
msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
}
void msp3400c_set_mode(struct i2c_client *client, int mode)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
int tuner = (state->route_in >> 3) & 1;
int i;
v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
state->mode = mode;
state->rxsubchans = V4L2_TUNER_SUB_MONO;
msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
for (i = 5; i >= 0; i--) /* fir 1 */
msp_write_dem(client, 0x0001, data->fir1[i]);
msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
msp_write_dem(client, 0x0005, 0x0040);
msp_write_dem(client, 0x0005, 0x0000);
for (i = 5; i >= 0; i--)
msp_write_dem(client, 0x0005, data->fir2[i]);
msp_write_dem(client, 0x0083, data->mode_reg);
msp3400c_set_carrier(client, data->cdo1, data->cdo2);
msp_set_source(client, data->dsp_src);
/* set prescales */
/* volume prescale for SCART (AM mono input) */
msp_write_dsp(client, 0x000d, 0x1900);
msp_write_dsp(client, 0x000e, data->dsp_matrix);
if (state->has_nicam) /* nicam prescale */
msp_write_dsp(client, 0x0010, 0x5a00);
}
/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
nor do they support stereo BTSC. */
static void msp3400c_set_audmode(struct i2c_client *client)
{
static char *strmode[] = {
"mono", "stereo", "lang2", "lang1", "lang1+lang2"
};
struct msp_state *state = to_state(i2c_get_clientdata(client));
char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
strmode[state->audmode] : "unknown";
int src = 0; /* channel source: FM/AM, nicam or SCART */
int audmode = state->audmode;
if (state->opmode == OPMODE_AUTOSELECT) {
/* this method would break everything, let's make sure
* it's never called
*/
v4l_dbg(1, msp_debug, client,
"set_audmode called with mode=%d instead of set_source (ignored)\n",
state->audmode);
return;
}
/* Note: for the C and D revs no NTSC stereo + SAP is possible as
the hardware does not support SAP. So the rxsubchans combination
of STEREO | LANG2 does not occur. */
if (state->mode != MSP_MODE_EXTERN) {
/* switch to mono if only mono is available */
if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
audmode = V4L2_TUNER_MODE_MONO;
/* if bilingual */
else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
/* and mono or stereo, then fallback to lang1 */
if (audmode == V4L2_TUNER_MODE_MONO ||
audmode == V4L2_TUNER_MODE_STEREO)
audmode = V4L2_TUNER_MODE_LANG1;
}
/* if stereo, and audmode is not mono, then switch to stereo */
else if (audmode != V4L2_TUNER_MODE_MONO)
audmode = V4L2_TUNER_MODE_STEREO;
}
/* switch demodulator */
switch (state->mode) {
case MSP_MODE_FM_TERRA:
v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
msp_write_dsp(client, 0x000e, 0x3001);
break;
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
case V4L2_TUNER_MODE_LANG2:
case V4L2_TUNER_MODE_LANG1_LANG2:
msp_write_dsp(client, 0x000e, 0x3000);
break;
}
break;
case MSP_MODE_FM_SAT:
v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
switch (audmode) {
case V4L2_TUNER_MODE_MONO:
msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG1:
msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG2:
msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
}
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
v4l_dbg(1, msp_debug, client,
"NICAM set_audmode: %s\n", modestr);
if (state->nicam_on)
src = 0x0100; /* NICAM */
break;
case MSP_MODE_BTSC:
v4l_dbg(1, msp_debug, client,
"BTSC set_audmode: %s\n", modestr);
break;
case MSP_MODE_EXTERN:
v4l_dbg(1, msp_debug, client,
"extern set_audmode: %s\n", modestr);
src = 0x0200; /* SCART */
break;
case MSP_MODE_FM_RADIO:
v4l_dbg(1, msp_debug, client,
"FM-Radio set_audmode: %s\n", modestr);
break;
default:
v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
return;
}
/* switch audio */
v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
src |= 0x0020;
break;
case V4L2_TUNER_MODE_MONO:
if (state->mode == MSP_MODE_AM_NICAM) {
v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
/* AM mono decoding is handled by tuner, not MSP chip */
/* SCART switching control register */
msp_set_scart(client, SCART_MONO, 0);
src = 0x0200;
break;
}
if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
src = 0x0030;
break;
case V4L2_TUNER_MODE_LANG1:
break;
case V4L2_TUNER_MODE_LANG2:
src |= 0x0010;
break;
}
v4l_dbg(1, msp_debug, client,
"set_audmode final source/matrix = 0x%x\n", src);
msp_set_source(client, src);
}
static void msp3400c_print_mode(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
if (state->main == state->second)
v4l_dbg(1, msp_debug, client,
"mono sound carrier: %d.%03d MHz\n",
state->main / 910000, (state->main / 910) % 1000);
else
v4l_dbg(1, msp_debug, client,
"main sound carrier: %d.%03d MHz\n",
state->main / 910000, (state->main / 910) % 1000);
if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
v4l_dbg(1, msp_debug, client,
"NICAM/FM carrier : %d.%03d MHz\n",
state->second / 910000, (state->second/910) % 1000);
if (state->mode == MSP_MODE_AM_NICAM)
v4l_dbg(1, msp_debug, client,
"NICAM/AM carrier : %d.%03d MHz\n",
state->second / 910000, (state->second / 910) % 1000);
if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
v4l_dbg(1, msp_debug, client,
"FM-stereo carrier : %d.%03d MHz\n",
state->second / 910000, (state->second / 910) % 1000);
}
}
/* ----------------------------------------------------------------------- */
static int msp3400c_detect_stereo(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
int val;
int rxsubchans = state->rxsubchans;
int newnicam = state->nicam_on;
int update = 0;
switch (state->mode) {
case MSP_MODE_FM_TERRA:
val = msp_read_dsp(client, 0x18);
if (val > 32767)
val -= 65536;
v4l_dbg(2, msp_debug, client,
"stereo detect register: %d\n", val);
if (val > 8192) {
rxsubchans = V4L2_TUNER_SUB_STEREO;
} else if (val < -4096) {
rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
} else {
rxsubchans = V4L2_TUNER_SUB_MONO;
}
newnicam = 0;
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
val = msp_read_dem(client, 0x23);
v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
val & 1, (val & 0x1e) >> 1);
if (val & 1) {
/* nicam synced */
switch ((val & 0x1e) >> 1) {
case 0:
case 8:
rxsubchans = V4L2_TUNER_SUB_STEREO;
break;
case 1:
case 9:
rxsubchans = V4L2_TUNER_SUB_MONO;
break;
case 2:
case 10:
rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
break;
default:
rxsubchans = V4L2_TUNER_SUB_MONO;
break;
}
newnicam = 1;
} else {
newnicam = 0;
rxsubchans = V4L2_TUNER_SUB_MONO;
}
break;
}
if (rxsubchans != state->rxsubchans) {
update = 1;
v4l_dbg(1, msp_debug, client,
"watch: rxsubchans %02x => %02x\n",
state->rxsubchans, rxsubchans);
state->rxsubchans = rxsubchans;
}
if (newnicam != state->nicam_on) {
update = 1;
v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
state->nicam_on, newnicam);
state->nicam_on = newnicam;
}
return update;
}
/*
* A kernel thread for msp3400 control -- we don't want to block the
* in the ioctl while doing the sound carrier & stereo detect
*/
/* stereo/multilang monitoring */
static void watch_stereo(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
if (msp_detect_stereo(client))
msp_set_audmode(client);
if (msp_once)
state->watch_stereo = 0;
}
int msp3400c_thread(void *data)
{
struct i2c_client *client = data;
struct msp_state *state = to_state(i2c_get_clientdata(client));
struct msp3400c_carrier_detect *cd;
int count, max1, max2, val1, val2, val, i;
v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
set_freezable();
for (;;) {
v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
msp_sleep(state, -1);
v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
restart:
v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
state->restart = 0;
if (kthread_should_stop())
break;
if (state->radio || MSP_MODE_EXTERN == state->mode) {
/* no carrier scan, just unmute */
v4l_dbg(1, msp_debug, client,
"thread: no carrier scan\n");
state->scan_in_progress = 0;
msp_set_audio(client);
continue;
}
/* mute audio */
state->scan_in_progress = 1;
msp_set_audio(client);
msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
val1 = val2 = 0;
max1 = max2 = -1;
state->watch_stereo = 0;
state->nicam_on = 0;
/* wait for tuner to settle down after a channel change */
if (msp_sleep(state, 200))
goto restart;
/* carrier detect pass #1 -- main carrier */
cd = msp3400c_carrier_detect_main;
count = ARRAY_SIZE(msp3400c_carrier_detect_main);
if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
/* autodetect doesn't work well with AM ... */
max1 = 3;
count = 0;
v4l_dbg(1, msp_debug, client, "AM sound override\n");
}
for (i = 0; i < count; i++) {
msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
if (msp_sleep(state, 100))
goto restart;
val = msp_read_dsp(client, 0x1b);
if (val > 32767)
val -= 65536;
if (val1 < val)
val1 = val, max1 = i;
v4l_dbg(1, msp_debug, client,
"carrier1 val: %5d / %s\n", val, cd[i].name);
}
/* carrier detect pass #2 -- second (stereo) carrier */
switch (max1) {
case 1: /* 5.5 */
cd = msp3400c_carrier_detect_55;
count = ARRAY_SIZE(msp3400c_carrier_detect_55);
break;
case 3: /* 6.5 */
cd = msp3400c_carrier_detect_65;
count = ARRAY_SIZE(msp3400c_carrier_detect_65);
break;
case 0: /* 4.5 */
case 2: /* 6.0 */
default:
cd = NULL;
count = 0;
break;
}
if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
/* autodetect doesn't work well with AM ... */
cd = NULL;
count = 0;
max2 = 0;
}
for (i = 0; i < count; i++) {
msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
if (msp_sleep(state, 100))
goto restart;
val = msp_read_dsp(client, 0x1b);
if (val > 32767)
val -= 65536;
if (val2 < val)
val2 = val, max2 = i;
v4l_dbg(1, msp_debug, client,
"carrier2 val: %5d / %s\n", val, cd[i].name);
}
/* program the msp3400 according to the results */
state->main = msp3400c_carrier_detect_main[max1].cdo;
switch (max1) {
case 1: /* 5.5 */
if (max2 == 0) {
/* B/G FM-stereo */
state->second = msp3400c_carrier_detect_55[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
state->watch_stereo = 1;
} else if (max2 == 1 && state->has_nicam) {
/* B/G NICAM */
state->second = msp3400c_carrier_detect_55[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
state->nicam_on = 1;
state->watch_stereo = 1;
} else {
goto no_second;
}
break;
case 2: /* 6.0 */
/* PAL I NICAM */
state->second = MSP_CARRIER(6.552);
msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
state->nicam_on = 1;
state->watch_stereo = 1;
break;
case 3: /* 6.5 */
if (max2 == 1 || max2 == 2) {
/* D/K FM-stereo */
state->second = msp3400c_carrier_detect_65[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
state->watch_stereo = 1;
} else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
/* L NICAM or AM-mono */
state->second = msp3400c_carrier_detect_65[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
state->watch_stereo = 1;
} else if (max2 == 0 && state->has_nicam) {
/* D/K NICAM */
state->second = msp3400c_carrier_detect_65[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
state->nicam_on = 1;
state->watch_stereo = 1;
} else {
goto no_second;
}
break;
case 0: /* 4.5 */
default:
no_second:
state->second = msp3400c_carrier_detect_main[max1].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
break;
}
msp3400c_set_carrier(client, state->second, state->main);
/* unmute */
state->scan_in_progress = 0;
msp3400c_set_audmode(client);
msp_set_audio(client);
if (msp_debug)
msp3400c_print_mode(client);
/* monitor tv audio mode, the first time don't wait
so long to get a quick stereo/bilingual result */
count = 3;
while (state->watch_stereo) {
if (msp_sleep(state, count ? 1000 : 5000))
goto restart;
if (count)
count--;
watch_stereo(client);
}
}
v4l_dbg(1, msp_debug, client, "thread: exit\n");
return 0;
}
int msp3410d_thread(void *data)
{
struct i2c_client *client = data;
struct msp_state *state = to_state(i2c_get_clientdata(client));
int val, i, std, count;
v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
set_freezable();
for (;;) {
v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
msp_sleep(state, -1);
v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
restart:
v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
state->restart = 0;
if (kthread_should_stop())
break;
if (state->mode == MSP_MODE_EXTERN) {
/* no carrier scan needed, just unmute */
v4l_dbg(1, msp_debug, client,
"thread: no carrier scan\n");
state->scan_in_progress = 0;
msp_set_audio(client);
continue;
}
/* mute audio */
state->scan_in_progress = 1;
msp_set_audio(client);
/* start autodetect. Note: autodetect is not supported for
NTSC-M and radio, hence we force the standard in those
cases. */
if (state->radio)
std = 0x40;
else
std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
state->watch_stereo = 0;
state->nicam_on = 0;
/* wait for tuner to settle down after a channel change */
if (msp_sleep(state, 200))
goto restart;
if (msp_debug)
v4l_dbg(2, msp_debug, client,
"setting standard: %s (0x%04x)\n",
msp_standard_std_name(std), std);
if (std != 1) {
/* programmed some specific mode */
val = std;
} else {
/* triggered autodetect */
msp_write_dem(client, 0x20, std);
for (;;) {
if (msp_sleep(state, 100))
goto restart;
/* check results */
val = msp_read_dem(client, 0x7e);
if (val < 0x07ff)
break;
v4l_dbg(2, msp_debug, client,
"detection still in progress\n");
}
}
for (i = 0; msp_stdlist[i].name != NULL; i++)
if (msp_stdlist[i].retval == val)
break;
v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
msp_standard_std_name(val), val);
state->main = msp_stdlist[i].main;
state->second = msp_stdlist[i].second;
state->std = val;
state->rxsubchans = V4L2_TUNER_SUB_MONO;
if (msp_amsound && !state->radio &&
(state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
/* autodetection has failed, let backup */
v4l_dbg(1, msp_debug, client, "autodetection failed,"
" switching to backup standard: %s (0x%04x)\n",
msp_stdlist[8].name ?
msp_stdlist[8].name : "unknown", val);
state->std = val = 0x0009;
msp_write_dem(client, 0x20, val);
}
/* set stereo */
switch (val) {
case 0x0008: /* B/G NICAM */
case 0x000a: /* I NICAM */
case 0x000b: /* D/K NICAM */
if (val == 0x000a)
state->mode = MSP_MODE_FM_NICAM2;
else
state->mode = MSP_MODE_FM_NICAM1;
/* just turn on stereo */
state->nicam_on = 1;
state->watch_stereo = 1;
break;
case 0x0009:
state->mode = MSP_MODE_AM_NICAM;
state->nicam_on = 1;
state->watch_stereo = 1;
break;
case 0x0020: /* BTSC */
/* The pre-'G' models only have BTSC-mono */
state->mode = MSP_MODE_BTSC;
break;
case 0x0040: /* FM radio */
state->mode = MSP_MODE_FM_RADIO;
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
/* not needed in theory if we have radio, but
short programming enables carrier mute */
msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
msp3400c_set_carrier(client, MSP_CARRIER(10.7),
MSP_CARRIER(10.7));
break;
case 0x0002:
case 0x0003:
case 0x0004:
case 0x0005:
state->mode = MSP_MODE_FM_TERRA;
state->watch_stereo = 1;
break;
}
/* set various prescales */
msp_write_dsp(client, 0x0d, 0x1900); /* scart */
msp_write_dsp(client, 0x0e, 0x3000); /* FM */
if (state->has_nicam)
msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
if (state->has_i2s_conf)
msp_write_dem(client, 0x40, state->i2s_mode);
/* unmute */
msp3400c_set_audmode(client);
state->scan_in_progress = 0;
msp_set_audio(client);
/* monitor tv audio mode, the first time don't wait
so long to get a quick stereo/bilingual result */
count = 3;
while (state->watch_stereo) {
if (msp_sleep(state, count ? 1000 : 5000))
goto restart;
if (count)
count--;
watch_stereo(client);
}
}
v4l_dbg(1, msp_debug, client, "thread: exit\n");
return 0;
}
/* ----------------------------------------------------------------------- */
/* msp34xxG + (autoselect no-thread)
* this one uses both automatic standard detection and automatic sound
* select which are available in the newer G versions
* struct msp: only norm, acb and source are really used in this mode
*/
static int msp34xxg_modus(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
if (state->radio) {
v4l_dbg(1, msp_debug, client, "selected radio modus\n");
return 0x0001;
}
if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
return 0x4001;
}
if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
return 0x0001;
}
if (state->v4l2_std == V4L2_STD_SECAM_L) {
v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n");
return 0x6001;
}
if (state->v4l2_std & V4L2_STD_MN) {
v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
return 0x2001;
}
return 0x7001;
}
static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
int source, matrix;
switch (state->audmode) {
case V4L2_TUNER_MODE_MONO:
source = 0; /* mono only */
matrix = 0x30;
break;
case V4L2_TUNER_MODE_LANG2:
source = 4; /* stereo or B */
matrix = 0x10;
break;
case V4L2_TUNER_MODE_LANG1_LANG2:
source = 1; /* stereo or A|B */
matrix = 0x20;
break;
case V4L2_TUNER_MODE_LANG1:
source = 3; /* stereo or A */
matrix = 0x00;
break;
case V4L2_TUNER_MODE_STEREO:
default:
source = 3; /* stereo or A */
matrix = 0x20;
break;
}
if (in == MSP_DSP_IN_TUNER)
source = (source << 8) | 0x20;
/* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
instead of 11, 12, 13. So we add one for that msp version. */
else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
source = ((in + 1) << 8) | matrix;
else
source = (in << 8) | matrix;
v4l_dbg(1, msp_debug, client,
"set source to %d (0x%x) for output %02x\n", in, source, reg);
msp_write_dsp(client, reg, source);
}
static void msp34xxg_set_sources(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
u32 in = state->route_in;
msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
/* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
if (state->has_scart2_out)
msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
}
/* (re-)initialize the msp34xxg */
static void msp34xxg_reset(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
int tuner = (state->route_in >> 3) & 1;
int modus;
/* initialize std to 1 (autodetect) to signal that no standard is
selected yet. */
state->std = 1;
msp_reset(client);
if (state->has_i2s_conf)
msp_write_dem(client, 0x40, state->i2s_mode);
/* step-by-step initialisation, as described in the manual */
modus = msp34xxg_modus(client);
modus |= tuner ? 0x100 : 0;
msp_write_dem(client, 0x30, modus);
/* write the dsps that may have an influence on
standard/audio autodetection right now */
msp34xxg_set_sources(client);
msp_write_dsp(client, 0x0d, 0x1900); /* scart */
msp_write_dsp(client, 0x0e, 0x3000); /* FM */
if (state->has_nicam)
msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
/* set identification threshold. Personally, I
* I set it to a higher value than the default
* of 0x190 to ignore noisy stereo signals.
* this needs tuning. (recommended range 0x00a0-0x03c0)
* 0x7f0 = forced mono mode
*
* a2 threshold for stereo/bilingual.
* Note: this register is part of the Manual/Compatibility mode.
* It is supported by all 'G'-family chips.
*/
msp_write_dem(client, 0x22, msp_stereo_thresh);
}
int msp34xxg_thread(void *data)
{
struct i2c_client *client = data;
struct msp_state *state = to_state(i2c_get_clientdata(client));
int val, i;
v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
set_freezable();
for (;;) {
v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
msp_sleep(state, -1);
v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
restart:
v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
state->restart = 0;
if (kthread_should_stop())
break;
if (state->mode == MSP_MODE_EXTERN) {
/* no carrier scan needed, just unmute */
v4l_dbg(1, msp_debug, client,
"thread: no carrier scan\n");
state->scan_in_progress = 0;
msp_set_audio(client);
continue;
}
/* setup the chip*/
msp34xxg_reset(client);
state->std = state->radio ? 0x40 :
(state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
msp_write_dem(client, 0x20, state->std);
/* start autodetect */
if (state->std != 1)
goto unmute;
/* watch autodetect */
v4l_dbg(1, msp_debug, client,
"started autodetect, waiting for result\n");
for (i = 0; i < 10; i++) {
if (msp_sleep(state, 100))
goto restart;
/* check results */
val = msp_read_dem(client, 0x7e);
if (val < 0x07ff) {
state->std = val;
break;
}
v4l_dbg(2, msp_debug, client,
"detection still in progress\n");
}
if (state->std == 1) {
v4l_dbg(1, msp_debug, client,
"detection still in progress after 10 tries. giving up.\n");
continue;
}
unmute:
v4l_dbg(1, msp_debug, client,
"detected standard: %s (0x%04x)\n",
msp_standard_std_name(state->std), state->std);
if (state->std == 9) {
/* AM NICAM mode */
msp_write_dsp(client, 0x0e, 0x7c00);
}
/* unmute: dispatch sound to scart output, set scart volume */
msp_set_audio(client);
/* restore ACB */
if (msp_write_dsp(client, 0x13, state->acb))
return -1;
/* the periodic stereo/SAP check is only relevant for
the 0x20 standard (BTSC) */
if (state->std != 0x20)
continue;
state->watch_stereo = 1;
/* monitor tv audio mode, the first time don't wait
in order to get a quick stereo/SAP update */
watch_stereo(client);
while (state->watch_stereo) {
watch_stereo(client);
if (msp_sleep(state, 5000))
goto restart;
}
}
v4l_dbg(1, msp_debug, client, "thread: exit\n");
return 0;
}
static int msp34xxg_detect_stereo(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
int status = msp_read_dem(client, 0x0200);
int is_bilingual = status & 0x100;
int is_stereo = status & 0x40;
int oldrx = state->rxsubchans;
if (state->mode == MSP_MODE_EXTERN)
return 0;
state->rxsubchans = 0;
if (is_stereo)
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
else
state->rxsubchans = V4L2_TUNER_SUB_MONO;
if (is_bilingual) {
if (state->std == 0x20)
state->rxsubchans |= V4L2_TUNER_SUB_SAP;
else
state->rxsubchans =
V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
}
v4l_dbg(1, msp_debug, client,
"status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
status, is_stereo, is_bilingual, state->rxsubchans);
return (oldrx != state->rxsubchans);
}
static void msp34xxg_set_audmode(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
if (state->std == 0x20) {
if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
(state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
state->audmode == V4L2_TUNER_MODE_LANG2)) {
msp_write_dem(client, 0x20, 0x21);
} else {
msp_write_dem(client, 0x20, 0x20);
}
}
msp34xxg_set_sources(client);
}
void msp_set_audmode(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
switch (state->opmode) {
case OPMODE_MANUAL:
case OPMODE_AUTODETECT:
msp3400c_set_audmode(client);
break;
case OPMODE_AUTOSELECT:
msp34xxg_set_audmode(client);
break;
}
}
int msp_detect_stereo(struct i2c_client *client)
{
struct msp_state *state = to_state(i2c_get_clientdata(client));
switch (state->opmode) {
case OPMODE_MANUAL:
case OPMODE_AUTODETECT:
return msp3400c_detect_stereo(client);
case OPMODE_AUTOSELECT:
return msp34xxg_detect_stereo(client);
}
return 0;
}
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