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-rw-r--r--drivers/media/dvb-frontends/lgs8gxx.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/lgs8gxx.h b/drivers/media/dvb-frontends/lgs8gxx.h
new file mode 100644
index 000000000..5b2f13a8b
--- /dev/null
+++ b/drivers/media/dvb-frontends/lgs8gxx.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
+ * LGS8913, LGS8GL5, LGS8G75
+ * experimental support LGS8G42, LGS8G52
+ *
+ * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
+ * Copyright (C) 2008 Sirius International (Hong Kong) Limited
+ * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
+ */
+
+#ifndef __LGS8GXX_H__
+#define __LGS8GXX_H__
+
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+#define LGS8GXX_PROD_LGS8913 0
+#define LGS8GXX_PROD_LGS8GL5 1
+#define LGS8GXX_PROD_LGS8G42 3
+#define LGS8GXX_PROD_LGS8G52 4
+#define LGS8GXX_PROD_LGS8G54 5
+#define LGS8GXX_PROD_LGS8G75 6
+
+struct lgs8gxx_config {
+
+ /* product type */
+ u8 prod;
+
+ /* the demodulator's i2c address */
+ u8 demod_address;
+
+ /* parallel or serial transport stream */
+ u8 serial_ts;
+
+ /* transport stream polarity*/
+ u8 ts_clk_pol;
+
+ /* transport stream clock gated by ts_valid */
+ u8 ts_clk_gated;
+
+ /* A/D Clock frequency */
+ u32 if_clk_freq; /* in kHz */
+
+ /* IF frequency */
+ u32 if_freq; /* in kHz */
+
+ /*Use External ADC*/
+ u8 ext_adc;
+
+ /*External ADC output two's complement*/
+ u8 adc_signed;
+
+ /*Sample IF data at falling edge of IF_CLK*/
+ u8 if_neg_edge;
+
+ /*IF use Negative center frequency*/
+ u8 if_neg_center;
+
+ /*8G75 internal ADC input range selection*/
+ /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
+ u8 adc_vpp;
+
+ /* slave address and configuration of the tuner */
+ u8 tuner_address;
+};
+
+#if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
+extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
+ struct i2c_adapter *i2c);
+#else
+static inline
+struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
+ struct i2c_adapter *i2c) {
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif /* CONFIG_DVB_LGS8GXX */
+
+#endif /* __LGS8GXX_H__ */