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[media] xc5000: add support for showing the SNR and gain in the debug output

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When debugging is enabled, also show the analog SNR and the total gain
status values.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2012-08-06 22:46:56 -03:00 committed by Mauro Carvalho Chehab
parent 1aa9c487ff
commit 7c287f1849
1 changed files with 20 additions and 0 deletions
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20
drivers/media/common/tuners/xc5000.c
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@ -111,6 +111,7 @@ struct xc5000_priv {
#define XREG_PRODUCT_ID 0x08
#define XREG_BUSY 0x09
#define XREG_BUILD 0x0D
#define XREG_TOTALGAIN 0x0F
/*
Basic firmware description. This will remain with
@ -541,6 +542,16 @@ static int xc_get_quality(struct xc5000_priv *priv, u16 *quality)
return xc5000_readreg(priv, XREG_QUALITY, quality);
}
static int xc_get_analogsnr(struct xc5000_priv *priv, u16 *snr)
{
return xc5000_readreg(priv, XREG_SNR, snr);
}
static int xc_get_totalgain(struct xc5000_priv *priv, u16 *totalgain)
{
return xc5000_readreg(priv, XREG_TOTALGAIN, totalgain);
}
static u16 WaitForLock(struct xc5000_priv *priv)
{
u16 lockState = 0;
@ -652,6 +663,8 @@ static void xc_debug_dump(struct xc5000_priv *priv)
u32 hsync_freq_hz = 0;
u16 frame_lines;
u16 quality;
u16 snr;
u16 totalgain;
u8 hw_majorversion = 0, hw_minorversion = 0;
u8 fw_majorversion = 0, fw_minorversion = 0;
u16 fw_buildversion = 0;
@ -687,6 +700,13 @@ static void xc_debug_dump(struct xc5000_priv *priv)
xc_get_quality(priv, &quality);
dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality & 0x07);
xc_get_analogsnr(priv, &snr);
dprintk(1, "*** Unweighted analog SNR = %d dB\n", snr & 0x3f);
xc_get_totalgain(priv, &totalgain);
dprintk(1, "*** Total gain = %d.%d dB\n", totalgain / 256,
(totalgain % 256) * 100 / 256);
}
static int xc5000_set_params(struct dvb_frontend *fe)