summaryrefslogtreecommitdiff
path: root/drivers/media/common/tuners/xc4000.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/common/tuners/xc4000.h')
-rw-r--r--drivers/media/common/tuners/xc4000.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/media/common/tuners/xc4000.h b/drivers/media/common/tuners/xc4000.h
new file mode 100644
index 000000000000..e6a44d151cbd
--- /dev/null
+++ b/drivers/media/common/tuners/xc4000.h
@@ -0,0 +1,67 @@
+/*
+ * Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
+ *
+ * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __XC4000_H__
+#define __XC4000_H__
+
+#include <linux/firmware.h>
+
+struct dvb_frontend;
+struct i2c_adapter;
+
+struct xc4000_config {
+ u8 i2c_address;
+ /* if non-zero, power management is enabled by default */
+ u8 default_pm;
+ /* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */
+ u8 dvb_amplitude;
+ /* if non-zero, register 0x0E is set to filter analog TV video output */
+ u8 set_smoothedcvbs;
+ /* IF for DVB-T */
+ u32 if_khz;
+};
+
+/* xc4000 callback command */
+#define XC4000_TUNER_RESET 0
+
+/* For each bridge framework, when it attaches either analog or digital,
+ * it has to store a reference back to its _core equivalent structure,
+ * so that it can service the hardware by steering gpio's etc.
+ * Each bridge implementation is different so cast devptr accordingly.
+ * The xc4000 driver cares not for this value, other than ensuring
+ * it's passed back to a bridge during tuner_callback().
+ */
+
+#if defined(CONFIG_MEDIA_TUNER_XC4000) || (defined(CONFIG_MEDIA_TUNER_XC4000_MODULE) && defined(MODULE))
+extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc4000_config *cfg);
+#else
+static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc4000_config *cfg)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif
+
+#endif