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authorIgor M. Liplianin <liplianin@me.by>2008-09-16 18:21:11 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:37:06 -0200
commit04ad28c9916da709f38b1d43817892142c2c3508 (patch)
tree1ae338bce55ef7322dd96237a601f322639e4dac /drivers/media/dvb/frontends/si21xx.h
parent34c080295af9b3ed9f704a881e07eb5ac128e1ed (diff)
V4L/DVB (9017): Add support for Silicon Laboratories SI2109/2110 demodulators.
Add support for Silicon Laboratories SI2109/2110 demodulator and cards with it, such as DvbWorld PCI2002. Signed-off-by: Igor M. Liplianin <liplianin@me.by> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/si21xx.h')
-rw-r--r--drivers/media/dvb/frontends/si21xx.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/si21xx.h b/drivers/media/dvb/frontends/si21xx.h
new file mode 100644
index 000000000000..141b5b8a5f63
--- /dev/null
+++ b/drivers/media/dvb/frontends/si21xx.h
@@ -0,0 +1,37 @@
+#ifndef SI21XX_H
+#define SI21XX_H
+
+#include <linux/dvb/frontend.h>
+#include "dvb_frontend.h"
+
+struct si21xx_config {
+ /* the demodulator's i2c address */
+ u8 demod_address;
+
+ /* minimum delay before retuning */
+ int min_delay_ms;
+};
+
+#if defined(CONFIG_DVB_SI21XX) || \
+ (defined(CONFIG_DVB_SI21XX_MODULE) && defined(MODULE))
+extern struct dvb_frontend *si21xx_attach(const struct si21xx_config *config,
+ struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *si21xx_attach(
+ const struct si21xx_config *config, struct i2c_adapter *i2c)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif
+
+static inline int si21xx_writeregister(struct dvb_frontend *fe, u8 reg, u8 val)
+{
+ int r = 0;
+ u8 buf[] = {reg, val};
+ if (fe->ops.write)
+ r = fe->ops.write(fe, buf, 2);
+ return r;
+}
+
+#endif