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| author | Oliver Endriss <o.endriss@gmx.de> | 2009-12-12 14:09:14 +0100 |
|---|---|---|
| committer | Oliver Endriss <o.endriss@gmx.de> | 2009-12-12 14:09:14 +0100 |
| commit | a00f99bd7db531165340b8f8d6913ba5666de92e (patch) | |
| tree | 53dab14464f809ecd469a4b2ec5d47d2fa2648f0 /linux/drivers/media/dvb | |
| parent | 37bdd4a1ba291779215c8bc8cc6be5c7a59837e3 (diff) | |
| download | mediapointer-dvb-s2-a00f99bd7db531165340b8f8d6913ba5666de92e.tar.gz mediapointer-dvb-s2-a00f99bd7db531165340b8f8d6913ba5666de92e.tar.bz2 | |
lnbp21: Implement 22 kHz tone control
Support 22 kHz tone control for lnbp21 and lnbh24.
(Overrides the 'set_tone' hook of the frontend driver.)
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Diffstat (limited to 'linux/drivers/media/dvb')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/lnbp21.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/linux/drivers/media/dvb/frontends/lnbp21.c b/linux/drivers/media/dvb/frontends/lnbp21.c index 71f607fe8..b181bf023 100644 --- a/linux/drivers/media/dvb/frontends/lnbp21.c +++ b/linux/drivers/media/dvb/frontends/lnbp21.c @@ -1,7 +1,7 @@ /* * lnbp21.c - driver for lnb supply and control ic lnbp21 * - * Copyright (C) 2006 Oliver Endriss + * Copyright (C) 2006, 2009 Oliver Endriss <o.endriss@gmx.de> * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru> * * This program is free software; you can redistribute it and/or @@ -91,6 +91,31 @@ static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg) return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO; } +static int lnbp21_set_tone(struct dvb_frontend *fe, + fe_sec_tone_mode_t tone) +{ + struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv; + struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0, + .buf = &lnbp21->config, + .len = sizeof(lnbp21->config) }; + + switch (tone) { + case SEC_TONE_OFF: + lnbp21->config &= ~LNBP21_TEN; + break; + case SEC_TONE_ON: + lnbp21->config |= LNBP21_TEN; + break; + default: + return -EINVAL; + }; + + lnbp21->config |= lnbp21->override_or; + lnbp21->config &= lnbp21->override_and; + + return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO; +} + static void lnbp21_release(struct dvb_frontend *fe) { /* LNBP power off */ @@ -133,6 +158,7 @@ static struct dvb_frontend *lnbx2x_attach(struct dvb_frontend *fe, /* override frontend ops */ fe->ops.set_voltage = lnbp21_set_voltage; fe->ops.enable_high_lnb_voltage = lnbp21_enable_high_lnb_voltage; + fe->ops.set_tone = lnbp21_set_tone; printk(KERN_INFO "LNBx2x attached on addr=%x\n", lnbp21->i2c_addr); return fe; |