diff options
| author | Antti Palosaari <crope@iki.fi> | 2014-04-22 22:56:54 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-04-23 09:56:20 -0300 |
| commit | ffb9948e65e785a8660b7f1e49022cc6505e709e (patch) | |
| tree | 73d0ed3ad6d216ba6b65f74ee7202cbdab78cea3 /drivers | |
| parent | 722a042de7c9a893a87d2d853c68473eb4000c05 (diff) | |
[media] em28xx: PCTV tripleStick (292e) LNA support
External LNA between antenna connector and RF tuner is controlled
by EM28178 GPIO 0. GPIO value 1 is LNA active and value 0 is LNA
disabled.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-dvb.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index b79e08bb3aad..a121ed9561fd 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -746,6 +746,21 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe) #endif } +static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv; + struct em28xx *dev = i2c_bus->dev; + u8 lna; + + if (c->lna == 1) + lna = 0x01; + else + lna = 0x00; + + return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01); +} + static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe) { /* Values extracted from a USB trace of the Terratec Windows driver */ @@ -1553,6 +1568,7 @@ static int em28xx_dvb_init(struct em28xx *dev) } dvb->i2c_client_tuner = client; + dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna; } break; default: |