Make si2165_set_if_freq_shift query IF frequency itself.
create function to write a set of registers
Always write adc registers after reset.
Signed-off-by: Matthias Schwarzott <z...@gentoo.org>
---
drivers/media/dvb-frontends/si2165.c | 173 ++++++++++++++++++-----------------
1 file changed, 87 insertions(+), 86 deletions(-)
diff --git a/drivers/media/dvb-frontends/si2165.c
b/drivers/media/dvb-frontends/si2165.c
index c5d7c0d..c87d927 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -243,6 +243,27 @@ err:
return ret;
}
+#define REG16(reg, val) { (reg), (val) & 0xff }, { (reg)+1, (val)>>8 & 0xff }
+struct si2165_reg_value_pair {
+ u16 reg;
+ u8 val;
+};
+
+static int si2165_write_reg_list(struct si2165_state *state,
+ const struct si2165_reg_value_pair *regs,
+ int count)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < count; i++) {
+ ret = si2165_writereg8(state, regs[i].reg, regs[i].val);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
static int si2165_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s)
{
@@ -669,22 +690,19 @@ static int si2165_init(struct dvb_frontend *fe)
goto error;
}
- /* write adc values after each reset*/
- ret = si2165_writereg8(state, 0x012a, 0x46);
- if (ret < 0)
- goto error;
- ret = si2165_writereg8(state, 0x012c, 0x00);
+ /* ts output config */
+ ret = si2165_writereg8(state, 0x04e4, 0x20);
if (ret < 0)
- goto error;
- ret = si2165_writereg8(state, 0x012e, 0x0a);
+ return ret;
+ ret = si2165_writereg16(state, 0x04ef, 0x00fe);
if (ret < 0)
- goto error;
- ret = si2165_writereg8(state, 0x012f, 0xff);
+ return ret;
+ ret = si2165_writereg24(state, 0x04f4, 0x555555);
if (ret < 0)
- goto error;
- ret = si2165_writereg8(state, 0x0123, 0x70);
+ return ret;
+ ret = si2165_writereg8(state, 0x04e5, 0x01);
if (ret < 0)
- goto error;
+ return ret;
return 0;
error:
@@ -746,12 +764,22 @@ static int si2165_set_oversamp(struct si2165_state
*state, u32 dvb_rate)
return si2165_writereg32(state, 0x00e4, reg_value);
}
-static int si2165_set_if_freq_shift(struct si2165_state *state, u32 IF)
+static int si2165_set_if_freq_shift(struct si2165_state *state)
{
+ struct dvb_frontend *fe = &(state->frontend);
u64 if_freq_shift;
s32 reg_value = 0;
u32 fe_clk = si2165_get_fe_clk(state);
+ u32 IF = 0;
+
+ if (!fe->ops.tuner_ops.get_if_frequency) {
+ dev_err(&state->i2c->dev,
+ "%s: Error: get_if_frequency() not defined at tuner.
Can't work without it!\n",
+ KBUILD_MODNAME);
+ return -EINVAL;
+ }
+ fe->ops.tuner_ops.get_if_frequency(fe, &IF);
if_freq_shift = IF;
if_freq_shift <<= 29;
@@ -767,35 +795,53 @@ static int si2165_set_if_freq_shift(struct si2165_state
*state, u32 IF)
return si2165_writereg32(state, 0x00e8, reg_value);
}
+static const struct si2165_reg_value_pair agc_rewrite[] = {
+ { 0x012a, 0x46 },
+ { 0x012c, 0x00 },
+ { 0x012e, 0x0a },
+ { 0x012f, 0xff },
+ { 0x0123, 0x70 }
+};
+
+static const struct si2165_reg_value_pair dvbt_regs[] = {
+ /* impulsive_noise_remover */
+ { 0x031c, 0x01 },
+ { 0x00cb, 0x00 },
+ /* agc2 */
+ { 0x016e, 0x41 },
+ { 0x016c, 0x0e },
+ { 0x016d, 0x10 },
+ /* agc */
+ { 0x015b, 0x03 },
+ { 0x0150, 0x78 },
+ /* agc */
+ { 0x01a0, 0x78 },
+ { 0x01c8, 0x68 },
+ /* freq_sync_range */
+ REG16(0x030c, 0x0064),
+ /* gp_reg0 */
+ { 0x0387, 0x00 }
+};
+
static int si2165_set_parameters(struct dvb_frontend *fe)
{
int ret;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct si2165_state *state = fe->demodulator_priv;
- u8 val[3];
- u32 IF;
u32 dvb_rate = 0;
u16 bw10k;
+ u32 bw_hz = p->bandwidth_hz;
dprintk("%s: called\n", __func__);
- if (!fe->ops.tuner_ops.get_if_frequency) {
- dev_err(&state->i2c->dev,
- "%s: Error: get_if_frequency() not defined at tuner.
Can't work without it!\n",
- KBUILD_MODNAME);
- return -EINVAL;
- }
-
if (!state->has_dvbt)
return -EINVAL;
- if (p->bandwidth_hz > 0) {
- dvb_rate = p->bandwidth_hz * 8 / 7;
- bw10k = p->bandwidth_hz / 10000;
- } else {
- dvb_rate = 8 * 8 / 7;
- bw10k = 800;
- }
+ if (bw_hz == 0)
+ bw_hz = 8000000;
+
+ dvb_rate = bw_hz * 8 / 7;
+ bw10k = bw_hz / 10000;
/* standard = DVB-T */
ret = si2165_writereg8(state, 0x00ec, 0x01);
@@ -805,26 +851,12 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
if (ret < 0)
return ret;
- fe->ops.tuner_ops.get_if_frequency(fe, &IF);
- ret = si2165_set_if_freq_shift(state, IF);
+ ret = si2165_set_if_freq_shift(state);
if (ret < 0)
return ret;
ret = si2165_writereg8(state, 0x08f8, 0x00);
if (ret < 0)
return ret;
- /* ts output config */
- ret = si2165_writereg8(state, 0x04e4, 0x20);
- if (ret < 0)
- return ret;
- ret = si2165_writereg16(state, 0x04ef, 0x00fe);
- if (ret < 0)
- return ret;
- ret = si2165_writereg24(state, 0x04f4, 0x555555);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x04e5, 0x01);
- if (ret < 0)
- return ret;
/* bandwidth in 10KHz steps */
ret = si2165_writereg16(state, 0x0308, bw10k);
if (ret < 0)
@@ -832,48 +864,11 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
ret = si2165_set_oversamp(state, dvb_rate);
if (ret < 0)
return ret;
- /* impulsive_noise_remover */
- ret = si2165_writereg8(state, 0x031c, 0x01);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x00cb, 0x00);
- if (ret < 0)
- return ret;
- /* agc2 */
- ret = si2165_writereg8(state, 0x016e, 0x41);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x016c, 0x0e);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x016d, 0x10);
- if (ret < 0)
- return ret;
- /* agc */
- ret = si2165_writereg8(state, 0x015b, 0x03);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x0150, 0x78);
- if (ret < 0)
- return ret;
- /* agc */
- ret = si2165_writereg8(state, 0x01a0, 0x78);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x01c8, 0x68);
- if (ret < 0)
- return ret;
- /* freq_sync_range */
- ret = si2165_writereg16(state, 0x030c, 0x0064);
- if (ret < 0)
- return ret;
- /* gp_reg0 */
- ret = si2165_readreg8(state, 0x0387, val);
- if (ret < 0)
- return ret;
- ret = si2165_writereg8(state, 0x0387, 0x00);
+
+ ret = si2165_write_reg_list(state, dvbt_regs, ARRAY_SIZE(dvbt_regs));
if (ret < 0)
return ret;
+
/* dsp_addr_jump */
ret = si2165_writereg32(state, 0x0348, 0xf4000000);
if (ret < 0)
@@ -883,8 +878,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
fe->ops.tuner_ops.set_params(fe);
/* recalc if_freq_shift if IF might has changed */
- fe->ops.tuner_ops.get_if_frequency(fe, &IF);
- ret = si2165_set_if_freq_shift(state, IF);
+ ret = si2165_set_if_freq_shift(state);
if (ret < 0)
return ret;
@@ -903,6 +897,13 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
ret = si2165_writereg32(state, 0x0384, 0x00000000);
if (ret < 0)
return ret;
+
+ /* write adc values after each reset*/
+ ret = si2165_write_reg_list(state, agc_rewrite,
+ ARRAY_SIZE(agc_rewrite));
+ if (ret < 0)
+ goto error;
+
/* start_synchro */
ret = si2165_writereg8(state, 0x02e0, 0x01);
if (ret < 0)
--
2.6.3
--
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