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[media] tuner-core: simplify the standard fixup 

Get rid of a number of unnecessary tuner_dbg messages by simplifying
the std fixup function.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2011-06-13 09:47:56 -03:00 committed by Mauro Carvalho Chehab
parent 338e9e1ad5
commit 487833018e
1 changed files with 28 additions and 65 deletions
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93
drivers/media/video/tuner-core.c
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@ -823,7 +823,8 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq)
/**
* tuner_fixup_std - force a given video standard variant
*
* @t: tuner internal struct
* @t: tuner internal struct
* @std: TV standard
*
* A few devices or drivers have problem to detect some standard variations.
* On other operational systems, the drivers generally have a per-country
@ -833,57 +834,39 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq)
* to distinguish all video standard variations, a modprobe parameter can
* be used to force a video standard match.
*/
static int tuner_fixup_std(struct tuner *t)
static v4l2_std_id tuner_fixup_std(struct tuner *t, v4l2_std_id std)
{
if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
if (pal[0] != '-' && (std & V4L2_STD_PAL) == V4L2_STD_PAL) {
switch (pal[0]) {
case '6':
tuner_dbg("insmod fixup: PAL => PAL-60\n");
t->std = V4L2_STD_PAL_60;
break;
return V4L2_STD_PAL_60;
case 'b':
case 'B':
case 'g':
case 'G':
tuner_dbg("insmod fixup: PAL => PAL-BG\n");
t->std = V4L2_STD_PAL_BG;
break;
return V4L2_STD_PAL_BG;
case 'i':
case 'I':
tuner_dbg("insmod fixup: PAL => PAL-I\n");
t->std = V4L2_STD_PAL_I;
break;
return V4L2_STD_PAL_I;
case 'd':
case 'D':
case 'k':
case 'K':
tuner_dbg("insmod fixup: PAL => PAL-DK\n");
t->std = V4L2_STD_PAL_DK;
break;
return V4L2_STD_PAL_DK;
case 'M':
case 'm':
tuner_dbg("insmod fixup: PAL => PAL-M\n");
t->std = V4L2_STD_PAL_M;
break;
return V4L2_STD_PAL_M;
case 'N':
case 'n':
if (pal[1] == 'c' || pal[1] == 'C') {
tuner_dbg("insmod fixup: PAL => PAL-Nc\n");
t->std = V4L2_STD_PAL_Nc;
} else {
tuner_dbg("insmod fixup: PAL => PAL-N\n");
t->std = V4L2_STD_PAL_N;
}
break;
case '-':
/* default parameter, do nothing */
break;
if (pal[1] == 'c' || pal[1] == 'C')
return V4L2_STD_PAL_Nc;
return V4L2_STD_PAL_N;
default:
tuner_warn("pal= argument not recognised\n");
break;
}
}
if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
if (secam[0] != '-' && (std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
switch (secam[0]) {
case 'b':
case 'B':
@ -891,63 +874,42 @@ static int tuner_fixup_std(struct tuner *t)
case 'G':
case 'h':
case 'H':
tuner_dbg("insmod fixup: SECAM => SECAM-BGH\n");
t->std = V4L2_STD_SECAM_B |
V4L2_STD_SECAM_G |
V4L2_STD_SECAM_H;
break;
return V4L2_STD_SECAM_B |
V4L2_STD_SECAM_G |
V4L2_STD_SECAM_H;
case 'd':
case 'D':
case 'k':
case 'K':
tuner_dbg("insmod fixup: SECAM => SECAM-DK\n");
t->std = V4L2_STD_SECAM_DK;
break;
return V4L2_STD_SECAM_DK;
case 'l':
case 'L':
if ((secam[1] == 'C') || (secam[1] == 'c')) {
tuner_dbg("insmod fixup: SECAM => SECAM-L'\n");
t->std = V4L2_STD_SECAM_LC;
} else {
tuner_dbg("insmod fixup: SECAM => SECAM-L\n");
t->std = V4L2_STD_SECAM_L;
}
break;
case '-':
/* default parameter, do nothing */
break;
if ((secam[1] == 'C') || (secam[1] == 'c'))
return V4L2_STD_SECAM_LC;
return V4L2_STD_SECAM_L;
default:
tuner_warn("secam= argument not recognised\n");
break;
}
}
if ((t->std & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
if (ntsc[0] != '-' && (std & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
switch (ntsc[0]) {
case 'm':
case 'M':
tuner_dbg("insmod fixup: NTSC => NTSC-M\n");
t->std = V4L2_STD_NTSC_M;
break;
return V4L2_STD_NTSC_M;
case 'j':
case 'J':
tuner_dbg("insmod fixup: NTSC => NTSC_M_JP\n");
t->std = V4L2_STD_NTSC_M_JP;
break;
return V4L2_STD_NTSC_M_JP;
case 'k':
case 'K':
tuner_dbg("insmod fixup: NTSC => NTSC_M_KR\n");
t->std = V4L2_STD_NTSC_M_KR;
break;
case '-':
/* default parameter, do nothing */
break;
return V4L2_STD_NTSC_M_KR;
default:
tuner_info("ntsc= argument not recognised\n");
break;
}
}
return 0;
return std;
}
/*
@ -1102,8 +1064,9 @@ static int tuner_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
if (set_mode(t, V4L2_TUNER_ANALOG_TV))
return 0;
t->std = std;
tuner_fixup_std(t);
t->std = tuner_fixup_std(t, std);
if (t->std != std)
tuner_dbg("Fixup standard %llx to %llx\n", std, t->std);
set_freq(t, 0);
return 0;
}