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path: root/drivers/media/dvb/frontends/lnbp21.h
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Diffstat (limited to 'drivers/media/dvb/frontends/lnbp21.h')
-rw-r--r--drivers/media/dvb/frontends/lnbp21.h34
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/media/dvb/frontends/lnbp21.h b/drivers/media/dvb/frontends/lnbp21.h
index 8fe094bd9689..fcdf1c650dde 100644
--- a/drivers/media/dvb/frontends/lnbp21.h
+++ b/drivers/media/dvb/frontends/lnbp21.h
@@ -28,26 +28,48 @@
#define _LNBP21_H
/* system register bits */
+/* [RO] 0=OK; 1=over current limit flag */
#define LNBP21_OLF 0x01
+/* [RO] 0=OK; 1=over temperature flag (150 C) */
#define LNBP21_OTF 0x02
+/* [RW] 0=disable LNB power, enable loopthrough
+ 1=enable LNB power, disable loopthrough */
#define LNBP21_EN 0x04
+/* [RW] 0=low voltage (13/14V, vert pol)
+ 1=high voltage (18/19V,horiz pol) */
#define LNBP21_VSEL 0x08
+/* [RW] increase LNB voltage by 1V:
+ 0=13/18V; 1=14/19V */
#define LNBP21_LLC 0x10
+/* [RW] 0=tone controlled by DSQIN pin
+ 1=tone enable, disable DSQIN */
#define LNBP21_TEN 0x20
+/* [RW] current limit select:
+ 0:Iout=500-650mA Isc=300mA
+ 1:Iout=400-550mA Isc=200mA */
#define LNBP21_ISEL 0x40
+/* [RW] short-circuit protect:
+ 0=pulsed (dynamic) curr limiting
+ 1=static curr limiting */
#define LNBP21_PCL 0x80
#include <linux/dvb/frontend.h>
-#if defined(CONFIG_DVB_LNBP21) || (defined(CONFIG_DVB_LNBP21_MODULE) && defined(MODULE))
-/* override_set and override_clear control which system register bits (above) to always set & clear */
-extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear);
+#if defined(CONFIG_DVB_LNBP21) || (defined(CONFIG_DVB_LNBP21_MODULE) \
+ && defined(MODULE))
+/* override_set and override_clear control which
+ system register bits (above) to always set & clear */
+extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, u8 override_set,
+ u8 override_clear);
#else
-static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
+static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, u8 override_set,
+ u8 override_clear)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
-#endif // CONFIG_DVB_LNBP21
+#endif
-#endif // _LNBP21_H
+#endif