diff options
| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-07-21 21:21:18 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-07-23 04:43:39 +0400 |
| commit | a3eec916cbc17dc1aaa3ddf120836cd5200eb4ef (patch) | |
| tree | d3821edc22568e98577c2c5eb64e86ea59eeb22e /drivers/media/tuners/xc5000.c | |
| parent | 612ae142ac02e8b187f23b8c9f1cc9cd8c6a078d (diff) | |
| download | linux-a3eec916cbc17dc1aaa3ddf120836cd5200eb4ef.tar.xz | |
[media] xc5000: Fix get_frequency()
The programmed frequency on xc5000 is not the middle
frequency, but the initial frequency on the bandwidth range.
However, the DVB API works with the middle frequency.
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/tuners/xc5000.c')
| -rw-r--r-- | drivers/media/tuners/xc5000.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/media/tuners/xc5000.c b/drivers/media/tuners/xc5000.c index f059ba2f5656..ab7d444bcdcc 100644 --- a/drivers/media/tuners/xc5000.c +++ b/drivers/media/tuners/xc5000.c @@ -56,7 +56,7 @@ struct xc5000_priv { u32 if_khz; u16 xtal_khz; - u32 freq_hz; + u32 freq_hz, freq_offset; u32 bandwidth; u8 video_standard; u8 rf_mode; @@ -749,13 +749,13 @@ static int xc5000_set_params(struct dvb_frontend *fe) case SYS_ATSC: dprintk(1, "%s() VSB modulation\n", __func__); priv->rf_mode = XC_RF_MODE_AIR; - priv->freq_hz = freq - 1750000; + priv->freq_offset = 1750000; priv->video_standard = DTV6; break; case SYS_DVBC_ANNEX_B: dprintk(1, "%s() QAM modulation\n", __func__); priv->rf_mode = XC_RF_MODE_CABLE; - priv->freq_hz = freq - 1750000; + priv->freq_offset = 1750000; priv->video_standard = DTV6; break; case SYS_ISDBT: @@ -770,15 +770,15 @@ static int xc5000_set_params(struct dvb_frontend *fe) switch (bw) { case 6000000: priv->video_standard = DTV6; - priv->freq_hz = freq - 1750000; + priv->freq_offset = 1750000; break; case 7000000: priv->video_standard = DTV7; - priv->freq_hz = freq - 2250000; + priv->freq_offset = 2250000; break; case 8000000: priv->video_standard = DTV8; - priv->freq_hz = freq - 2750000; + priv->freq_offset = 2750000; break; default: printk(KERN_ERR "xc5000 bandwidth not set!\n"); @@ -792,15 +792,15 @@ static int xc5000_set_params(struct dvb_frontend *fe) priv->rf_mode = XC_RF_MODE_CABLE; if (bw <= 6000000) { priv->video_standard = DTV6; - priv->freq_hz = freq - 1750000; + priv->freq_offset = 1750000; b = 6; } else if (bw <= 7000000) { priv->video_standard = DTV7; - priv->freq_hz = freq - 2250000; + priv->freq_offset = 2250000; b = 7; } else { priv->video_standard = DTV7_8; - priv->freq_hz = freq - 2750000; + priv->freq_offset = 2750000; b = 8; } dprintk(1, "%s() Bandwidth %dMHz (%d)\n", __func__, @@ -811,6 +811,8 @@ static int xc5000_set_params(struct dvb_frontend *fe) return -EINVAL; } + priv->freq_hz = freq - priv->freq_offset; + dprintk(1, "%s() frequency=%d (compensated to %d)\n", __func__, freq, priv->freq_hz); @@ -1061,7 +1063,7 @@ static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq) { struct xc5000_priv *priv = fe->tuner_priv; dprintk(1, "%s()\n", __func__); - *freq = priv->freq_hz; + *freq = priv->freq_hz + priv->freq_offset; return 0; } |