diff options
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/ts2020.c | 120 | ||||
| -rw-r--r-- | 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 9aba044dabed..24c4712b77fe 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 b2fe6bb3a38b..8a08dccc217f 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) |