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path: root/drivers/media/dvb/frontends/lgdt3305.h
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Diffstat (limited to 'drivers/media/dvb/frontends/lgdt3305.h')
-rw-r--r--drivers/media/dvb/frontends/lgdt3305.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/lgdt3305.h b/drivers/media/dvb/frontends/lgdt3305.h
new file mode 100644
index 000000000000..4fa6e52d1fe8
--- /dev/null
+++ b/drivers/media/dvb/frontends/lgdt3305.h
@@ -0,0 +1,85 @@
+/*
+ * Support for LGDT3305 - VSB/QAM
+ *
+ * Copyright (C) 2008, 2009 Michael Krufky <mkrufky@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 _LGDT3305_H_
+#define _LGDT3305_H_
+
+#include <linux/i2c.h>
+#include "dvb_frontend.h"
+
+
+enum lgdt3305_mpeg_mode {
+ LGDT3305_MPEG_PARALLEL = 0,
+ LGDT3305_MPEG_SERIAL = 1,
+};
+
+enum lgdt3305_tp_clock_edge {
+ LGDT3305_TPCLK_RISING_EDGE = 0,
+ LGDT3305_TPCLK_FALLING_EDGE = 1,
+};
+
+enum lgdt3305_tp_valid_polarity {
+ LGDT3305_TP_VALID_LOW = 0,
+ LGDT3305_TP_VALID_HIGH = 1,
+};
+
+struct lgdt3305_config {
+ u8 i2c_addr;
+
+ /* user defined IF frequency in KHz */
+ u16 qam_if_khz;
+ u16 vsb_if_khz;
+
+ /* AGC Power reference - defaults are used if left unset */
+ u16 usref_8vsb; /* default: 0x32c4 */
+ u16 usref_qam64; /* default: 0x5400 */
+ u16 usref_qam256; /* default: 0x2a80 */
+
+ /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
+ int deny_i2c_rptr:1;
+
+ /* spectral inversion - 0:disabled 1:enabled */
+ int spectral_inversion:1;
+
+ /* use RF AGC loop - 0:disabled 1:enabled */
+ int rf_agc_loop:1;
+
+ enum lgdt3305_mpeg_mode mpeg_mode;
+ enum lgdt3305_tp_clock_edge tpclk_edge;
+ enum lgdt3305_tp_valid_polarity tpvalid_polarity;
+};
+
+#if defined(CONFIG_DVB_LGDT3305) || (defined(CONFIG_DVB_LGDT3305_MODULE) && \
+ defined(MODULE))
+extern
+struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
+ struct i2c_adapter *i2c_adap);
+#else
+static inline
+struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
+ struct i2c_adapter *i2c_adap)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif /* CONFIG_DVB_LGDT3305 */
+
+#endif /* _LGDT3305_H_ */