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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-05 11:31:16 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-05 11:31:16 -0200 |
| commit | e743836c92c2f0fb9bf167dc094bb22ebbded955 (patch) | |
| tree | 55fe816918bd2e0bcfb9ac9db77da311bfe723e5 /linux/drivers/media | |
| parent | 81755eaa892b63b3357fca8123471febe60b9f66 (diff) | |
| download | mediapointer-dvb-s2-e743836c92c2f0fb9bf167dc094bb22ebbded955.tar.gz mediapointer-dvb-s2-e743836c92c2f0fb9bf167dc094bb22ebbded955.tar.bz2 | |
tuner-xc2028: powers device of when not used
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Since the firmware load is now fast on most boards, better to keep the tuner
off by default. A modprobe parameter were added to keep the old behavior,
to be used by old devices.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/drivers/media')
| -rw-r--r-- | linux/drivers/media/common/tuners/tuner-xc2028.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/linux/drivers/media/common/tuners/tuner-xc2028.c b/linux/drivers/media/common/tuners/tuner-xc2028.c index 7f43272ca..c7ed924df 100644 --- a/linux/drivers/media/common/tuners/tuner-xc2028.c +++ b/linux/drivers/media/common/tuners/tuner-xc2028.c @@ -32,6 +32,12 @@ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "enable verbose debug messages"); +static int no_poweroff; +module_param(no_poweroff, int, 0644); +MODULE_PARM_DESC(debug, "0 (default) powers device off when not used.\n" + "1 keep device energized and with tuner ready all the times.\n" + " Faster, but consumes more power and keeps the device hotter\n"); + static char audio_std[8]; module_param_string(audio_std, audio_std, sizeof(audio_std), 0); MODULE_PARM_DESC(audio_std, @@ -1095,16 +1101,16 @@ static int xc2028_set_params(struct dvb_frontend *fe, T_DIGITAL_TV, type, 0, demod); } -#if 0 -/* This is needed at sleep (S1/S3), but not at fe_standby. Otherwise, - firmware will be loaded on every open() - */ static int xc2028_sleep(struct dvb_frontend *fe) { struct xc2028_data *priv = fe->tuner_priv; int rc = 0; - tuner_dbg("%s called\n", __func__); + /* Avoid firmware reload on slow devices */ + if (no_poweroff) + return; + + tuner_dbg("Putting xc2028/3028 into poweroff mode.\n"); mutex_lock(&priv->lock); @@ -1119,7 +1125,6 @@ static int xc2028_sleep(struct dvb_frontend *fe) return rc; } -#endif static int xc2028_dvb_release(struct dvb_frontend *fe) { @@ -1200,9 +1205,7 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = { .get_frequency = xc2028_get_frequency, .get_rf_strength = xc2028_signal, .set_params = xc2028_set_params, -#if 0 .sleep = xc2028_sleep, -#endif #if 0 int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth); int (*get_status)(struct dvb_frontend *fe, u32 *status); |