summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/media/dvb-frontends/si21xx.h
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/media/dvb-frontends/si21xx.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/media/dvb-frontends/si21xx.h')
-rw-r--r--kernel/drivers/media/dvb-frontends/si21xx.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/kernel/drivers/media/dvb-frontends/si21xx.h b/kernel/drivers/media/dvb-frontends/si21xx.h
new file mode 100644
index 000000000..ef5f351ca
--- /dev/null
+++ b/kernel/drivers/media/dvb-frontends/si21xx.h
@@ -0,0 +1,37 @@
+#ifndef SI21XX_H
+#define SI21XX_H
+
+#include <linux/kconfig.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 IS_REACHABLE(CONFIG_DVB_SI21XX)
+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