diff options
Diffstat (limited to 'drivers/media/dvb-frontends/rtl2830.c')
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2830.c | 203 |
1 files changed, 89 insertions, 114 deletions
diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c index d25d1e0cd4ca..87226056f226 100644 --- a/drivers/media/dvb-frontends/rtl2830.c +++ b/drivers/media/dvb-frontends/rtl2830.c @@ -135,8 +135,6 @@ static int rtl2830_init(struct dvb_frontend *fe) c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->post_bit_count.len = 1; c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - /* start statistics polling */ - schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000)); dev->sleeping = false; @@ -152,8 +150,6 @@ static int rtl2830_sleep(struct dvb_frontend *fe) struct rtl2830_dev *dev = i2c_get_clientdata(client); dev->sleeping = true; - /* stop statistics polling */ - cancel_delayed_work_sync(&dev->stat_work); dev->fe_status = 0; return 0; @@ -396,8 +392,10 @@ static int rtl2830_read_status(struct dvb_frontend *fe, enum fe_status *status) { struct i2c_client *client = fe->demodulator_priv; struct rtl2830_dev *dev = i2c_get_clientdata(client); - int ret; - u8 u8tmp; + struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache; + int ret, stmp; + unsigned int utmp; + u8 u8tmp, buf[2]; *status = 0; @@ -419,6 +417,89 @@ static int rtl2830_read_status(struct dvb_frontend *fe, enum fe_status *status) dev->fe_status = *status; + /* Signal strength */ + if (dev->fe_status & FE_HAS_SIGNAL) { + /* Read IF AGC */ + ret = rtl2830_bulk_read(client, 0x359, buf, 2); + if (ret) + goto err; + + stmp = buf[0] << 8 | buf[1] << 0; + stmp = sign_extend32(stmp, 13); + utmp = clamp_val(-4 * stmp + 32767, 0x0000, 0xffff); + + dev_dbg(&client->dev, "IF AGC=%d\n", stmp); + + c->strength.stat[0].scale = FE_SCALE_RELATIVE; + c->strength.stat[0].uvalue = utmp; + } else { + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + + /* CNR */ + if (dev->fe_status & FE_HAS_VITERBI) { + unsigned int hierarchy, constellation; + #define CONSTELLATION_NUM 3 + #define HIERARCHY_NUM 4 + static const u32 constant[CONSTELLATION_NUM][HIERARCHY_NUM] = { + {70705899, 70705899, 70705899, 70705899}, + {82433173, 82433173, 87483115, 94445660}, + {92888734, 92888734, 95487525, 99770748}, + }; + + ret = rtl2830_bulk_read(client, 0x33c, &u8tmp, 1); + if (ret) + goto err; + + constellation = (u8tmp >> 2) & 0x03; /* [3:2] */ + if (constellation > CONSTELLATION_NUM - 1) + goto err; + + hierarchy = (u8tmp >> 4) & 0x07; /* [6:4] */ + if (hierarchy > HIERARCHY_NUM - 1) + goto err; + + ret = rtl2830_bulk_read(client, 0x40c, buf, 2); + if (ret) + goto err; + + utmp = buf[0] << 8 | buf[1] << 0; + if (utmp) + stmp = (constant[constellation][hierarchy] - + intlog10(utmp)) / ((1 << 24) / 10000); + else + stmp = 0; + + dev_dbg(&client->dev, "CNR raw=%u\n", utmp); + + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + c->cnr.stat[0].svalue = stmp; + } else { + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + + /* BER */ + if (dev->fe_status & FE_HAS_LOCK) { + ret = rtl2830_bulk_read(client, 0x34e, buf, 2); + if (ret) + goto err; + + utmp = buf[0] << 8 | buf[1] << 0; + dev->post_bit_error += utmp; + dev->post_bit_count += 1000000; + + dev_dbg(&client->dev, "BER errors=%u total=1000000\n", utmp); + + c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_error.stat[0].uvalue = dev->post_bit_error; + c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_count.stat[0].uvalue = dev->post_bit_count; + } else { + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + + return ret; err: dev_dbg(&client->dev, "failed=%d\n", ret); @@ -503,109 +584,6 @@ static struct dvb_frontend_ops rtl2830_ops = { .read_signal_strength = rtl2830_read_signal_strength, }; -static void rtl2830_stat_work(struct work_struct *work) -{ - struct rtl2830_dev *dev = container_of(work, struct rtl2830_dev, stat_work.work); - struct i2c_client *client = dev->client; - struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache; - int ret, tmp; - u8 u8tmp, buf[2]; - u16 u16tmp; - - dev_dbg(&client->dev, "\n"); - - /* signal strength */ - if (dev->fe_status & FE_HAS_SIGNAL) { - struct {signed int x:14; } s; - - /* read IF AGC */ - ret = rtl2830_bulk_read(client, 0x359, buf, 2); - if (ret) - goto err; - - u16tmp = buf[0] << 8 | buf[1] << 0; - u16tmp &= 0x3fff; /* [13:0] */ - tmp = s.x = u16tmp; /* 14-bit bin to 2 complement */ - u16tmp = clamp_val(-4 * tmp + 32767, 0x0000, 0xffff); - - dev_dbg(&client->dev, "IF AGC=%d\n", tmp); - - c->strength.stat[0].scale = FE_SCALE_RELATIVE; - c->strength.stat[0].uvalue = u16tmp; - } else { - c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - } - - /* CNR */ - if (dev->fe_status & FE_HAS_VITERBI) { - unsigned hierarchy, constellation; - #define CONSTELLATION_NUM 3 - #define HIERARCHY_NUM 4 - static const u32 constant[CONSTELLATION_NUM][HIERARCHY_NUM] = { - {70705899, 70705899, 70705899, 70705899}, - {82433173, 82433173, 87483115, 94445660}, - {92888734, 92888734, 95487525, 99770748}, - }; - - ret = rtl2830_bulk_read(client, 0x33c, &u8tmp, 1); - if (ret) - goto err; - - constellation = (u8tmp >> 2) & 0x03; /* [3:2] */ - if (constellation > CONSTELLATION_NUM - 1) - goto err_schedule_delayed_work; - - hierarchy = (u8tmp >> 4) & 0x07; /* [6:4] */ - if (hierarchy > HIERARCHY_NUM - 1) - goto err_schedule_delayed_work; - - ret = rtl2830_bulk_read(client, 0x40c, buf, 2); - if (ret) - goto err; - - u16tmp = buf[0] << 8 | buf[1] << 0; - if (u16tmp) - tmp = (constant[constellation][hierarchy] - - intlog10(u16tmp)) / ((1 << 24) / 10000); - else - tmp = 0; - - dev_dbg(&client->dev, "CNR raw=%u\n", u16tmp); - - c->cnr.stat[0].scale = FE_SCALE_DECIBEL; - c->cnr.stat[0].svalue = tmp; - } else { - c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - } - - /* BER */ - if (dev->fe_status & FE_HAS_LOCK) { - ret = rtl2830_bulk_read(client, 0x34e, buf, 2); - if (ret) - goto err; - - u16tmp = buf[0] << 8 | buf[1] << 0; - dev->post_bit_error += u16tmp; - dev->post_bit_count += 1000000; - - dev_dbg(&client->dev, "BER errors=%u total=1000000\n", u16tmp); - - c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; - c->post_bit_error.stat[0].uvalue = dev->post_bit_error; - c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; - c->post_bit_count.stat[0].uvalue = dev->post_bit_count; - } else { - c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - } - -err_schedule_delayed_work: - schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000)); - return; -err: - dev_dbg(&client->dev, "failed=%d\n", ret); -} - static int rtl2830_pid_filter_ctrl(struct dvb_frontend *fe, int onoff) { struct i2c_client *client = fe->demodulator_priv; @@ -851,7 +829,6 @@ static int rtl2830_probe(struct i2c_client *client, dev->client = client; dev->pdata = client->dev.platform_data; dev->sleeping = true; - INIT_DELAYED_WORK(&dev->stat_work, rtl2830_stat_work); dev->regmap = regmap_init(&client->dev, ®map_bus, client, ®map_config); if (IS_ERR(dev->regmap)) { @@ -904,9 +881,6 @@ static int rtl2830_remove(struct i2c_client *client) dev_dbg(&client->dev, "\n"); - /* stop statistics polling */ - cancel_delayed_work_sync(&dev->stat_work); - i2c_mux_del_adapters(dev->muxc); regmap_exit(dev->regmap); kfree(dev); @@ -922,7 +896,8 @@ MODULE_DEVICE_TABLE(i2c, rtl2830_id_table); static struct i2c_driver rtl2830_driver = { .driver = { - .name = "rtl2830", + .name = "rtl2830", + .suppress_bind_attrs = true, }, .probe = rtl2830_probe, .remove = rtl2830_remove, |