Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7c287f18 authored by Devin Heitmueller's avatar Devin Heitmueller Committed by Mauro Carvalho Chehab
Browse files

[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: default avatarDevin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 1aa9c487

drivers/media/common/tuners/xc5000.c

+20 −0
Original line number Diff line number Diff line
@@ -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)