From 233f3ef71c1abc2f5577e4617c76f4f3168ddd6e Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Sun, 18 Jun 2017 13:26:35 -0400 Subject: [PATCH] media: af9013: dvbv5 ber and per Implement dvbv5 ber and per. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/af9013.c | 73 +++++++++++++++++++++++++++++++++++- 1 file changed, 72 insertions(+), 1 deletion(-) diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c index b3d08e4..a054e39 100644 --- a/drivers/media/dvb-frontends/af9013.c +++ b/drivers/media/dvb-frontends/af9013.c @@ -47,6 +47,7 @@ struct af9013_state { unsigned long read_status_jiffies; unsigned long strength_jiffies; unsigned long cnr_jiffies; + unsigned long ber_ucb_jiffies; bool first_tune; bool i2c_gate_state; unsigned int statistics_step:3; @@ -754,7 +755,7 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status) struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret, stmp1; unsigned int utmp, utmp1, utmp2, utmp3, utmp4; - u8 buf[3]; + u8 buf[7]; dev_dbg(&client->dev, "\n"); @@ -947,6 +948,72 @@ static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status) break; } + /* BER / PER */ + switch (state->fe_status & FE_HAS_SYNC) { + case FE_HAS_SYNC: + if (time_is_after_jiffies(state->ber_ucb_jiffies + msecs_to_jiffies(2000))) + break; + + /* Check if ber / ucb is ready */ + ret = regmap_read(state->regmap, 0xd391, &utmp); + if (ret) + goto err; + + if (!((utmp >> 4) & 0x01)) { + dev_dbg(&client->dev, "ber not ready\n"); + break; + } + + /* Read value */ + ret = regmap_bulk_read(state->regmap, 0xd385, buf, 7); + if (ret) + goto err; + + utmp1 = buf[4] << 16 | buf[3] << 8 | buf[2] << 0; + utmp2 = (buf[1] << 8 | buf[0] << 0) * 204 * 8; + utmp3 = buf[6] << 8 | buf[5] << 0; + utmp4 = buf[1] << 8 | buf[0] << 0; + + /* Use 10000 TS packets for measure */ + if (utmp4 != 10000) { + buf[0] = (10000 >> 0) & 0xff; + buf[1] = (10000 >> 8) & 0xff; + ret = regmap_bulk_write(state->regmap, 0xd385, buf, 2); + if (ret) + goto err; + } + + /* Reset ber / ucb counter */ + ret = regmap_update_bits(state->regmap, 0xd391, 0x20, 0x20); + if (ret) + goto err; + + dev_dbg(&client->dev, "post_bit_error %u, post_bit_count %u\n", + utmp1, utmp2); + dev_dbg(&client->dev, "block_error %u, block_count %u\n", + utmp3, utmp4); + + state->ber_ucb_jiffies = jiffies; + + c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_error.stat[0].uvalue += utmp1; + c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_count.stat[0].uvalue += utmp2; + + c->block_error.stat[0].scale = FE_SCALE_COUNTER; + c->block_error.stat[0].uvalue += utmp3; + c->block_count.stat[0].scale = FE_SCALE_COUNTER; + c->block_count.stat[0].uvalue += utmp4; + break; + default: + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + + c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + break; + } + return 0; err: dev_dbg(&client->dev, "failed %d\n", ret); @@ -1670,6 +1737,10 @@ static int af9013_probe(struct i2c_client *client, c = &state->fe.dtv_property_cache; c->strength.len = 1; c->cnr.len = 1; + c->post_bit_error.len = 1; + c->post_bit_count.len = 1; + c->block_error.len = 1; + c->block_count.len = 1; dev_info(&client->dev, "Afatech AF9013 successfully attached\n"); dev_info(&client->dev, "firmware version: %d.%d.%d.%d\n", -- 2.7.4