TS2022 is slightly newer and different version of same tuner, which
could be supported with rather small changes. Tuner type is
auto-detected.
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
drivers/media/dvb-frontends/ts2020.c | 120 ++++++++++++++++++++++++++++++-----
drivers/media/dvb-frontends/ts2020.h | 25 +++++++-
2 files changed, 129 insertions(+), 16 deletions(-)
diff --git a/drivers/media/dvb-frontends/ts2020.c b/drivers/media/dvb-frontends/ts2020.c
index 9aba044..24c4712 100644
--- a/drivers/media/dvb-frontends/ts2020.c
+++ b/drivers/media/dvb-frontends/ts2020.c
@@ -29,9 +29,19 @@ struct ts2020_priv {
/* i2c details */
int i2c_address;
struct i2c_adapter *i2c;
- u8 clk_out_div;
+ u8 clk_out:2;
+ u8 clk_out_div:5;
u32 frequency;
u32 frequency_div;
+#define TS2020_M88TS2020 0
+#define TS2020_M88TS2022 1
+ u8 tuner;
+ u8 loop_through:1;
+};
+
+struct ts2020_reg_val {
+ u8 reg;
+ u8 val;
};
static int ts2020_release(struct dvb_frontend *fe)
@@ -121,6 +131,9 @@ static int ts2020_sleep(struct dvb_frontend *fe)
.len = 2
};
+ if (priv->tuner == TS2020_M88TS2022)
+ buf[0] = 0x00;
+
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
@@ -137,15 +150,64 @@ static int ts2020_sleep(struct dvb_frontend *fe)
static int ts2020_init(struct dvb_frontend *fe)
{
struct ts2020_priv *priv = fe->tuner_priv;
+ int i;
+ u8 u8tmp;
+
+ if (priv->tuner == TS2020_M88TS2020) {
+ ts2020_writereg(fe, 0x42, 0x73);
+ ts2020_writereg(fe, 0x05, priv->clk_out_div);
+ ts2020_writereg(fe, 0x20, 0x27);
+ ts2020_writereg(fe, 0x07, 0x02);
+ ts2020_writereg(fe, 0x11, 0xff);
+ ts2020_writereg(fe, 0x60, 0xf9);
+ ts2020_writereg(fe, 0x08, 0x01);
+ ts2020_writereg(fe, 0x00, 0x41);
+ } else {
+ static const struct ts2020_reg_val reg_vals[] = {
+ {0x7d, 0x9d},
+ {0x7c, 0x9a},
+ {0x7a, 0x76},
+ {0x3b, 0x01},
+ {0x63, 0x88},
+ {0x61, 0x85},
+ {0x22, 0x30},
+ {0x30, 0x40},
+ {0x20, 0x23},
+ {0x24, 0x02},
+ {0x12, 0xa0},
+ };
+
+ ts2020_writereg(fe, 0x00, 0x01);
+ ts2020_writereg(fe, 0x00, 0x03);
+
+ switch (priv->clk_out) {
+ case TS2020_CLK_OUT_DISABLED:
+ u8tmp = 0x60;
+ break;
+ case TS2020_CLK_OUT_ENABLED:
+ u8tmp = 0x70;
+ ts2020_writereg(fe, 0x05, priv->clk_out_div);
+ break;
+ case TS2020_CLK_OUT_ENABLED_XTALOUT:
+ u8tmp = 0x6c;
+ break;
+ default:
+ u8tmp = 0x60;
+ break;
+ }
+
+ ts2020_writereg(fe, 0x42, u8tmp);
+
+ if (priv->loop_through)
+ u8tmp = 0xec;
+ else
+ u8tmp = 0x6c;
- ts2020_writereg(fe, 0x42, 0x73);
- ts2020_writereg(fe, 0x05, priv->clk_out_div);
- ts2020_writereg(fe, 0x20, 0x27);
- ts2020_writereg(fe, 0x07, 0x02);
- ts2020_writereg(fe, 0x11, 0xff);
- ts2020_writereg(fe, 0x60, 0xf9);
- ts2020_writereg(fe, 0x08, 0x01);
- ts2020_writereg(fe, 0x00, 0x41);
+ ts2020_writereg(fe, 0x62, u8tmp);
+
+ for (i = 0; i < ARRAY_SIZE(reg_vals); i++)
+ ts2020_writereg(fe, reg_vals[i].reg, reg_vals[i].val);
+ }
return 0;
}
@@ -203,7 +265,14 @@ static int ts2020_set_params(struct dvb_frontend *fe)
ndiv = ndiv + ndiv % 2;
ndiv = ndiv - 1024;
- ret = ts2020_writereg(fe, 0x10, 0x80 | lo);
+ if (priv->tuner == TS2020_M88TS2020) {
+ lpf_coeff = 2766;
+ ret = ts2020_writereg(fe, 0x10, 0x80 | lo);
+ } else {
+ lpf_coeff = 3200;
+ ret = ts2020_writereg(fe, 0x10, 0x0b);
+ ret |= ts2020_writereg(fe, 0x11, 0x40);
+ }
/* Set frequency divider */
ret |= ts2020_writereg(fe, 0x01, (ndiv >> 8) & 0xf);
@@ -220,7 +289,8 @@ static int ts2020_set_params(struct dvb_frontend *fe)
ret |= ts2020_tuner_gate_ctrl(fe, 0x08);
/* Tuner RF */
- ret |= ts2020_set_tuner_rf(fe);
+ if (priv->tuner == TS2020_M88TS2020)
+ ret |= ts2020_set_tuner_rf(fe);
gdiv28 = (TS2020_XTAL_FREQ / 1000 * 1694 + 500) / 1000;
ret |= ts2020_writereg(fe, 0x04, gdiv28 & 0xff);
@@ -228,6 +298,15 @@ static int ts2020_set_params(struct dvb_frontend *fe)
if (ret < 0)
return -ENODEV;
+ if (priv->tuner == TS2020_M88TS2022) {
+ ret = ts2020_writereg(fe, 0x25, 0x00);
+ ret |= ts2020_writereg(fe, 0x27, 0x70);
+ ret |= ts2020_writereg(fe, 0x41, 0x09);
+ ret |= ts2020_writereg(fe, 0x08, 0x0b);
+ if (ret < 0)
+ return -ENODEV;
+ }
+
value = ts2020_readreg(fe, 0x26);
f3db = (symbol_rate * 135) / 200 + 2000;
@@ -243,8 +322,6 @@ static int ts2020_set_params(struct dvb_frontend *fe)
if (mlpf_max > 63)
mlpf_max = 63;
- lpf_coeff = 2766;
-
nlpf = (f3db * gdiv28 * 2 / lpf_coeff /
(TS2020_XTAL_FREQ / 1000) + 1) / 2;
if (nlpf > 23)
@@ -285,6 +362,13 @@ static int ts2020_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct ts2020_priv *priv = fe->tuner_priv;
*frequency = priv->frequency;
+
+ return 0;
+}
+
+static int ts2020_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ *frequency = 0; /* Zero-IF */
return 0;
}
@@ -324,6 +408,7 @@ static struct dvb_tuner_ops ts2020_tuner_ops = {
.sleep = ts2020_sleep,
.set_params = ts2020_set_params,
.get_frequency = ts2020_get_frequency,
+ .get_if_frequency = ts2020_get_if_frequency,
.get_rf_strength = ts2020_read_signal_strength,
};
@@ -340,6 +425,7 @@ struct dvb_frontend *ts2020_attach(struct dvb_frontend *fe,
priv->i2c_address = config->tuner_address;
priv->i2c = i2c;
+ priv->clk_out = config->clk_out;
priv->clk_out_div = config->clk_out_div;
priv->frequency_div = config->frequency_div;
fe->tuner_priv = priv;
@@ -358,9 +444,13 @@ struct dvb_frontend *ts2020_attach(struct dvb_frontend *fe,
/* Check the tuner version */
buf = ts2020_readreg(fe, 0x00);
- if ((buf == 0x01) || (buf == 0x41) || (buf == 0x81))
+ if ((buf == 0x01) || (buf == 0x41) || (buf == 0x81)) {
printk(KERN_INFO "%s: Find tuner TS2020!\n", __func__);
- else {
+ priv->tuner = TS2020_M88TS2020;
+ } else if ((buf == 0x83) || (buf == 0xc3)) {
+ printk(KERN_INFO "%s: Find tuner TS2022!\n", __func__);
+ priv->tuner = TS2020_M88TS2022;
+ } else {
printk(KERN_ERR "%s: Read tuner reg[0] = %d\n", __func__, buf);
kfree(priv);
return NULL;
diff --git a/drivers/media/dvb-frontends/ts2020.h b/drivers/media/dvb-frontends/ts2020.h
index b2fe6bb..8a08dcc 100644
--- a/drivers/media/dvb-frontends/ts2020.h
+++ b/drivers/media/dvb-frontends/ts2020.h
@@ -27,8 +27,31 @@
struct ts2020_config {
u8 tuner_address;
- u8 clk_out_div;
u32 frequency_div;
+
+ /*
+ * RF loop-through
+ */
+ u8 loop_through:1;
+
+ /*
+ * clock output
+ */
+#define TS2020_CLK_OUT_DISABLED 0
+#define TS2020_CLK_OUT_ENABLED 1
+#define TS2020_CLK_OUT_ENABLED_XTALOUT 2
+ u8 clk_out:2;
+
+ /*
+ * clock output divider
+ * 1 - 31
+ */
+ u8 clk_out_div:5;
+
+ /*
+ * pointer to DVB frontend
+ */
+ struct dvb_frontend *fe;
};
#if IS_ENABLED(CONFIG_DVB_TS2020)
--
http://palosaari.fi/
--
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