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[media] xc4000: debug message improvements 

The following patch makes a few minor changes to the printing
of debug messages, and reporting the tuner status. The 'debug'
module parameter can now be set from 0 to 2 to control the
verbosity of debug messages.

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 12:08:29 -03:00 committed by Mauro Carvalho Chehab
parent 027fd36186
commit f4312e2fd4
1 changed files with 45 additions and 23 deletions
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68
drivers/media/common/tuners/xc4000.c
View File

@ -39,7 +39,7 @@
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
MODULE_PARM_DESC(debug, "\n\t\tDebugging level (0 to 2, default: 0 (off)).");
static int no_poweroff;
module_param(no_poweroff, int, 0644);
@ -239,6 +239,7 @@ static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = {
static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
static int xc4000_TunerReset(struct dvb_frontend *fe);
static void xc_debug_dump(struct xc4000_priv *priv);
static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
{
@ -515,6 +516,15 @@ static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz, int mode)
found = 1;
}
/* Wait for stats to stabilize.
* Frame Lines needs two frame times after initial lock
* before it is valid.
*/
xc_wait(debug ? 100 : 10);
if (debug)
xc_debug_dump(priv);
return found;
}
@ -1085,12 +1095,6 @@ static void xc_debug_dump(struct xc4000_priv *priv)
u8 hw_majorversion = 0, hw_minorversion = 0;
u8 fw_majorversion = 0, fw_minorversion = 0;
/* Wait for stats to stabilize.
* Frame Lines needs two frame times after initial lock
* before it is valid.
*/
xc_wait(100);
xc_get_ADC_Envelope(priv, &adc_envelope);
dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
@ -1103,16 +1107,18 @@ static void xc_debug_dump(struct xc4000_priv *priv)
xc_get_version(priv, &hw_majorversion, &hw_minorversion,
&fw_majorversion, &fw_minorversion);
dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
hw_majorversion, hw_minorversion,
fw_majorversion, fw_minorversion);
xc_get_hsync_freq(priv, &hsync_freq_hz);
dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz);
if (priv->video_standard < XC4000_DTV6) {
xc_get_hsync_freq(priv, &hsync_freq_hz);
dprintk(1, "*** Horizontal sync frequency = %d Hz\n",
hsync_freq_hz);
xc_get_frame_lines(priv, &frame_lines);
dprintk(1, "*** Frame lines = %d\n", frame_lines);
xc_get_frame_lines(priv, &frame_lines);
dprintk(1, "*** Frame lines = %d\n", frame_lines);
}
xc_get_quality(priv, &quality);
dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
@ -1223,9 +1229,6 @@ static int xc4000_set_params(struct dvb_frontend *fe,
}
xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL);
if (debug)
xc_debug_dump(priv);
ret = 0;
fail:
@ -1320,9 +1323,6 @@ tune_channel:
xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG);
if (debug)
xc_debug_dump(priv);
ret = 0;
fail:
@ -1334,8 +1334,26 @@ fail:
static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)
{
struct xc4000_priv *priv = fe->tuner_priv;
dprintk(1, "%s()\n", __func__);
*freq = priv->freq_hz;
if (debug) {
mutex_lock(&priv->lock);
if ((priv->cur_fw.type
& (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) {
u16 snr = 0;
if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) {
mutex_unlock(&priv->lock);
dprintk(1, "%s() freq = %u, SNR = %d\n",
__func__, *freq, snr);
return 0;
}
}
mutex_unlock(&priv->lock);
}
dprintk(1, "%s()\n", __func__);
return 0;
}
@ -1355,13 +1373,17 @@ static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)
mutex_lock(&priv->lock);
xc_get_lock_status(priv, &lock_status);
if (priv->cur_fw.type & BASE)
xc_get_lock_status(priv, &lock_status);
*status = (lock_status == 1 ?
TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0);
if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8))
*status &= (~TUNER_STATUS_STEREO);
mutex_unlock(&priv->lock);
dprintk(1, "%s() lock_status = 0x%08x\n", __func__, lock_status);
*status = lock_status;
dprintk(2, "%s() lock_status = %d\n", __func__, lock_status);
return 0;
}