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path: root/drivers/media/tuners/r820t.c
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Diffstat (limited to 'drivers/media/tuners/r820t.c')
-rw-r--r--drivers/media/tuners/r820t.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 8e040cf9cf13..71159a58860f 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -775,6 +775,19 @@ static int r820t_sysfreq_sel(struct r820t_priv *priv, u32 freq,
div_buf_cur = 0x30; /* 11, 150u */
filter_cur = 0x40; /* 10, low */
break;
+ case SYS_DVBC_ANNEX_A:
+ mixer_top = 0x24; /* mixer top:13 , top-1, low-discharge */
+ lna_top = 0xe5;
+ lna_vth_l = 0x62;
+ mixer_vth_l = 0x75;
+ air_cable1_in = 0x60;
+ cable2_in = 0x00;
+ pre_dect = 0x40;
+ lna_discharge = 14;
+ cp_cur = 0x38; /* 111, auto */
+ div_buf_cur = 0x30; /* 11, 150u */
+ filter_cur = 0x40; /* 10, low */
+ break;
default: /* DVB-T 8M */
mixer_top = 0x24; /* mixer top:13 , top-1, low-discharge */
lna_top = 0xe5; /* detect bw 3, lna top:4, predet top:2 */
@@ -957,7 +970,7 @@ static int r820t_set_tv_standard(struct r820t_priv *priv,
ext_enable = 0x40; /* r30[6], ext enable; r30[5]:0 ext at lna max */
loop_through = 0x00; /* r5[7], lt on */
lt_att = 0x00; /* r31[7], lt att enable */
- flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */
+ flt_ext_widest = 0x80; /* r15[7]: flt_ext_wide on */
polyfil_cur = 0x60; /* r25[6:5]:min */
} else if (delsys == SYS_DVBC_ANNEX_A) {
if_khz = 5070;
@@ -971,6 +984,18 @@ static int r820t_set_tv_standard(struct r820t_priv *priv,
lt_att = 0x00; /* r31[7], lt att enable */
flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */
polyfil_cur = 0x60; /* r25[6:5]:min */
+ } else if (delsys == SYS_DVBC_ANNEX_C) {
+ if_khz = 4063;
+ filt_cal_lo = 55000;
+ filt_gain = 0x10; /* +3db, 6mhz on */
+ img_r = 0x00; /* image negative */
+ filt_q = 0x10; /* r10[4]:low q(1'b1) */
+ hp_cor = 0x6a; /* 1.7m disable, +0cap, 1.0mhz */
+ ext_enable = 0x40; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */
+ loop_through = 0x00; /* r5[7], lt on */
+ lt_att = 0x00; /* r31[7], lt att enable */
+ flt_ext_widest = 0x80; /* r15[7]: flt_ext_wide on */
+ polyfil_cur = 0x60; /* r25[6:5]:min */
} else {
if (bw <= 6) {
if_khz = 3570;
@@ -1186,7 +1211,7 @@ static int r820t_read_gain(struct r820t_priv *priv)
if (rc < 0)
return rc;
- return ((data[3] & 0x0f) << 1) + ((data[3] & 0xf0) >> 4);
+ return ((data[3] & 0x08) << 1) + ((data[3] & 0xf0) >> 4);
}
#if 0