diff options
| author | Luis Alves <ljalvs@gmail.com> | 2013-11-13 15:06:44 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-09 09:59:42 -0200 |
| commit | 71b6aaafd534995255d65d6433cbae7938a8131f (patch) | |
| tree | d473019894cc16733eddd1608ad450e77748bb02 /drivers/media/dvb-frontends | |
| parent | 9fa7c419643b8c291d9c56718804cb8cf4237e97 (diff) | |
[media] cx24117: Fix LNB set_voltage function
This patch should fix/enhance the set_voltage function for
the cx24117 demodulator.
Signed-off-by: Luis Alves <ljalvs@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/cx24117.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c index a6fe1aff976..68f768a5422 100644 --- a/drivers/media/dvb-frontends/cx24117.c +++ b/drivers/media/dvb-frontends/cx24117.c @@ -917,22 +917,15 @@ static int cx24117_set_voltage(struct dvb_frontend *fe, voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "SEC_VOLTAGE_OFF"); - /* Set GPIO direction */ - cmd.args[0] = CMD_SET_GPIODIR; - cmd.args[1] = reg; - cmd.args[2] = reg; + /* Prepare a set GPIO logic level CMD */ + cmd.args[0] = CMD_SET_GPIOOUT; + cmd.args[2] = reg; /* mask */ cmd.len = 3; - ret = cx24117_cmd_execute(fe, &cmd); - if (ret) - return ret; if ((voltage == SEC_VOLTAGE_13) || (voltage == SEC_VOLTAGE_18)) { - /* Set GPIO logic level */ - cmd.args[0] = CMD_SET_GPIOOUT; + /* power on LNB */ cmd.args[1] = reg; - cmd.args[2] = reg; - cmd.len = 3; ret = cx24117_cmd_execute(fe, &cmd); if (ret != 0) return ret; @@ -949,17 +942,17 @@ static int cx24117_set_voltage(struct dvb_frontend *fe, cmd.args[1] = state->demod ? 0 : 1; cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00); cmd.len = 3; + ret = cx24117_cmd_execute(fe, &cmd); /* Min delay time before DiSEqC send */ msleep(20); } else { - cmd.args[0] = CMD_SET_GPIOOUT; + /* power off LNB */ cmd.args[1] = 0x00; - cmd.args[2] = reg; - cmd.len = 3; + ret = cx24117_cmd_execute(fe, &cmd); } - return cx24117_cmd_execute(fe, &cmd); + return ret; } static int cx24117_set_tone(struct dvb_frontend *fe, @@ -1277,6 +1270,16 @@ static int cx24117_initfe(struct dvb_frontend *fe) cmd.args[2] = CX24117_OCC; cmd.len = 3; ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto exit; + + /* Set GPIO direction */ + /* Set as output - controls LNB power on/off */ + cmd.args[0] = CMD_SET_GPIODIR; + cmd.args[1] = 0x30; + cmd.args[2] = 0x30; + cmd.len = 3; + ret = cx24117_cmd_execute_nolock(fe, &cmd); exit: mutex_unlock(&state->priv->fe_lock); |