diff options
| author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2012-08-07 05:46:56 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-10 03:32:47 +0400 |
| commit | 7c287f1849cd904c210608a6a7bcec055bcb1152 (patch) | |
| tree | bcb7ab49879ca91b286f11db336903b79ec6933b /drivers/media/common/tuners | |
| parent | 1aa9c487ffb3b3190a51ad447c33628488c7774f (diff) | |
| download | linux-7c287f1849cd904c210608a6a7bcec055bcb1152.tar.xz | |
[media] xc5000: add support for showing the SNR and gain in the debug output
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>
Diffstat (limited to 'drivers/media/common/tuners')
| -rw-r--r-- | drivers/media/common/tuners/xc5000.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index a8f108652f55..a3f775a2ccd7 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -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) |