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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/media/dvb-frontends/ix2505v.h
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/dvb-frontends/ix2505v.h')
-rw-r--r--drivers/media/dvb-frontends/ix2505v.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/ix2505v.h b/drivers/media/dvb-frontends/ix2505v.h
new file mode 100644
index 000000000..20b1eb3dd
--- /dev/null
+++ b/drivers/media/dvb-frontends/ix2505v.h
@@ -0,0 +1,61 @@
+/**
+ * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
+ *
+ * Copyright (C) 2010 Malcolm Priestley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#ifndef DVB_IX2505V_H
+#define DVB_IX2505V_H
+
+#include <linux/i2c.h>
+#include <media/dvb_frontend.h>
+
+/**
+ * struct ix2505v_config - ix2505 attachment configuration
+ *
+ * @tuner_address: tuner address
+ * @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB
+ * @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default)
+ * @min_delay_ms: delay after tune
+ * @tuner_write_only: disables reads
+ */
+struct ix2505v_config {
+ u8 tuner_address;
+ u8 tuner_gain;
+ u8 tuner_chargepump;
+ int min_delay_ms;
+ u8 tuner_write_only;
+
+};
+
+#if IS_REACHABLE(CONFIG_DVB_IX2505V)
+/**
+ * Attach a ix2505v tuner to the supplied frontend structure.
+ *
+ * @fe: Frontend to attach to.
+ * @config: pointer to &struct ix2505v_config
+ * @i2c: pointer to &struct i2c_adapter.
+ *
+ * return: FE pointer on success, NULL on failure.
+ */
+extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
+ const struct ix2505v_config *config, struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
+ const struct ix2505v_config *config, struct i2c_adapter *i2c)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif
+
+#endif /* DVB_IX2505V_H */