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[media] xc4000: setting registers

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This patch implements setting the registers in xc4000_set_params()
and xc4000_set_analog_params(). A new register is defined which enables
filtering of the composite video output (this is needed to avoid bad
picture quality with some boards).

Signed-off-by: Istvan Varga <istvan_v@mailbox.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Istvan Varga 2011-06-04 12:12:42 -03:00 • committed by Mauro Carvalho Chehab
parent f4312e2fd4
commit 30f544ec56
1 changed files with 55 additions and 12 deletions
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67
drivers/media/common/tuners/xc4000.c
View file

@ -131,6 +131,7 @@ struct xc4000_priv {
#define XREG_SEEK_MODE 0x06
#define XREG_POWER_DOWN 0x08
#define XREG_SIGNALSOURCE 0x0A
#define XREG_SMOOTHEDCVBS 0x0E
#define XREG_AMPLITUDE 0x10
/* Registers (Read-only) */
@ -1218,15 +1219,35 @@ static int xc4000_set_params(struct dvb_frontend *fe,
"xc4000: xc_SetSignalSource(%d) failed\n",
priv->rf_mode);
goto fail;
} else {
u16 video_mode, audio_mode;
video_mode = XC4000_Standard[priv->video_standard].VideoMode;
audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
if (type == DTV6 && priv->firm_version != 0x0102)
video_mode |= 0x0001;
ret = xc_SetTVStandard(priv, video_mode, audio_mode);
if (ret != XC_RESULT_SUCCESS) {
printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
/* DJH - do not return when it fails... */
/* goto fail; */
}
}
ret = xc_SetTVStandard(priv,
XC4000_Standard[priv->video_standard].VideoMode,
XC4000_Standard[priv->video_standard].AudioMode);
if (ret != XC_RESULT_SUCCESS) {
printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
goto fail;
if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
ret = 0;
if (xc_write_reg(priv, XREG_AMPLITUDE,
(priv->firm_version == 0x0102 ? 132 : 134))
!= 0)
ret = -EREMOTEIO;
if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
ret = -EREMOTEIO;
if (ret != 0) {
printk(KERN_ERR "xc4000: setting registers failed\n");
/* goto fail; */
}
}
xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL);
ret = 0;
@ -1311,14 +1332,36 @@ static int xc4000_set_analog_params(struct dvb_frontend *fe,
"xc4000: xc_SetSignalSource(%d) failed\n",
priv->rf_mode);
goto fail;
} else {
u16 video_mode, audio_mode;
video_mode = XC4000_Standard[priv->video_standard].VideoMode;
audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
if (priv->video_standard < XC4000_BG_PAL_A2) {
if (0 /*type & NOGD*/)
video_mode &= 0xFF7F;
} else if (priv->video_standard < XC4000_I_PAL_NICAM) {
if (priv->card_type == XC4000_CARD_WINFAST_CX88 &&
priv->firm_version == 0x0102)
video_mode &= 0xFEFF;
}
ret = xc_SetTVStandard(priv, video_mode, audio_mode);
if (ret != XC_RESULT_SUCCESS) {
printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
goto fail;
}
}
ret = xc_SetTVStandard(priv,
XC4000_Standard[priv->video_standard].VideoMode,
XC4000_Standard[priv->video_standard].AudioMode);
if (ret != XC_RESULT_SUCCESS) {
printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
goto fail;
if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
ret = 0;
if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0)
ret = -EREMOTEIO;
if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
ret = -EREMOTEIO;
if (ret != 0) {
printk(KERN_ERR "xc4000: setting registers failed\n");
goto fail;
}
}
xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG);