From 4240b460f0dbb4bf4e3f64e6abd423f476012756 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sat, 29 Aug 2009 16:25:37 -0300 Subject: [PATCH] V4L/DVB (12864): tda18271: change output feature configuration to a bitmask For better readability, treat the low power standby mode configuration as an output option feature configuration, and change it to a bitmask. If left unconfigured, all features will remain enabled, just as the default configuration was before these changes were introduced. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/tda18271-fe.c | 47 ++++++++++++++++------------- drivers/media/common/tuners/tda18271-priv.h | 2 +- drivers/media/common/tuners/tda18271.h | 21 ++++++------- 3 files changed, 36 insertions(+), 34 deletions(-) diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 9dcbdb1..f6328bf 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -36,6 +36,27 @@ static LIST_HEAD(hybrid_tuner_instance_list); /*---------------------------------------------------------------------*/ +static int tda18271_toggle_output(struct dvb_frontend *fe, int standby) +{ + struct tda18271_priv *priv = fe->tuner_priv; + + int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0, + priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0, + priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0); + + if (tda_fail(ret)) + goto fail; + + tda_dbg("%s mode: xtal oscillator %s, slave tuner loop thru %s\n", + standby ? "standby" : "active", + priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on", + priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on"); +fail: + return ret; +} + +/*---------------------------------------------------------------------*/ + static inline int charge_pump_source(struct dvb_frontend *fe, int force) { struct tda18271_priv *priv = fe->tuner_priv; @@ -800,7 +821,7 @@ static int tda18271_init(struct dvb_frontend *fe) mutex_lock(&priv->lock); - /* power up */ + /* full power up */ ret = tda18271_set_standby_mode(fe, 0, 0, 0); if (tda_fail(ret)) goto fail; @@ -1017,24 +1038,8 @@ static int tda18271_sleep(struct dvb_frontend *fe) mutex_lock(&priv->lock); - switch (priv->standby_mode) { - case TDA18271_STANDBY_POWER_OFF: - tda_dbg("standby mode: power off\n"); - ret = tda18271_set_standby_mode(fe, 1, 1, 1); - break; - case TDA18271_STANDBY_XT_ON: - tda_dbg("standby mode: xtal oscillator on\n"); - ret = tda18271_set_standby_mode(fe, 1, 1, 0); - break; - case TDA18271_STANDBY_LT_ON: - tda_dbg("standby mode: slave tuner output / loop thru on\n"); - ret = tda18271_set_standby_mode(fe, 1, 0, 1); - break; - case TDA18271_STANDBY_LT_XT_ON: - default: - tda_dbg("standby mode: loop thru & xtal oscillator on\n"); - ret = tda18271_set_standby_mode(fe, 1, 0, 0); - } + /* enter standby mode, with required output features enabled */ + ret = tda18271_toggle_output(fe, 1); mutex_unlock(&priv->lock); @@ -1214,8 +1219,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO; priv->role = (cfg) ? cfg->role : TDA18271_MASTER; priv->config = (cfg) ? cfg->config : 0; - priv->standby_mode = (cfg) ? - cfg->standby_mode : TDA18271_STANDBY_LT_XT_ON; + priv->output_opt = (cfg) ? + cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON; /* tda18271_cal_on_startup == -1 when cal * module option is unset */ diff --git a/drivers/media/common/tuners/tda18271-priv.h b/drivers/media/common/tuners/tda18271-priv.h index 8c5fabc..2bee229 100644 --- a/drivers/media/common/tuners/tda18271-priv.h +++ b/drivers/media/common/tuners/tda18271-priv.h @@ -108,7 +108,7 @@ struct tda18271_priv { enum tda18271_role role; enum tda18271_i2c_gate gate; enum tda18271_ver id; - enum tda18271_standby_mode standby_mode; + enum tda18271_output_options output_opt; unsigned int config; /* interface to saa713x / tda829x */ unsigned int tm_rfcal; diff --git a/drivers/media/common/tuners/tda18271.h b/drivers/media/common/tuners/tda18271.h index bf6ba09..323f291 100644 --- a/drivers/media/common/tuners/tda18271.h +++ b/drivers/media/common/tuners/tda18271.h @@ -67,18 +67,15 @@ enum tda18271_i2c_gate { TDA18271_GATE_DIGITAL, }; -enum tda18271_standby_mode { - /* slave tuner output & loop thru & xtal oscillator on */ - TDA18271_STANDBY_LT_XT_ON = 0, +enum tda18271_output_options { + /* slave tuner output & loop thru & xtal oscillator always on */ + TDA18271_OUTPUT_LT_XT_ON = 0, - /* xtal oscillator on */ - TDA18271_STANDBY_XT_ON, + /* slave tuner output loop thru off */ + TDA18271_OUTPUT_LT_OFF = 1, - /* slave tuner output / loop thru on */ - TDA18271_STANDBY_LT_ON, - - /* power off */ - TDA18271_STANDBY_POWER_OFF, + /* xtal oscillator off */ + TDA18271_OUTPUT_XT_OFF = 2, }; struct tda18271_config { @@ -91,8 +88,8 @@ struct tda18271_config { /* use i2c gate provided by analog or digital demod */ enum tda18271_i2c_gate gate; - /* allow lower power standby modes */ - enum tda18271_standby_mode standby_mode; + /* output options that can be disabled */ + enum tda18271_output_options output_opt; /* force rf tracking filter calibration on startup */ unsigned int rf_cal_on_startup:1; -- 2.7.4