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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/dvb-frontends/helene.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/dvb-frontends/helene.h')
-rw-r--r--drivers/media/dvb-frontends/helene.h88
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/helene.h b/drivers/media/dvb-frontends/helene.h
new file mode 100644
index 000000000..32e0b1fb2
--- /dev/null
+++ b/drivers/media/dvb-frontends/helene.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * helene.h
+ *
+ * Sony HELENE DVB-S/S2/T/T2/C/C2/ISDB-T/S tuner driver (CXD2858ER)
+ *
+ * Copyright 2012 Sony Corporation
+ * Copyright (C) 2014 NetUP Inc.
+ * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
+ */
+
+#ifndef __DVB_HELENE_H__
+#define __DVB_HELENE_H__
+
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+enum helene_xtal {
+ SONY_HELENE_XTAL_16000, /* 16 MHz */
+ SONY_HELENE_XTAL_20500, /* 20.5 MHz */
+ SONY_HELENE_XTAL_24000, /* 24 MHz */
+ SONY_HELENE_XTAL_41000 /* 41 MHz */
+};
+
+/**
+ * struct helene_config - the configuration of 'Helene' tuner driver
+ * @i2c_address: I2C address of the tuner
+ * @xtal_freq_mhz: Oscillator frequency, MHz
+ * @set_tuner_priv: Callback function private context
+ * @set_tuner_callback: Callback function that notifies the parent driver
+ * which tuner is active now
+ * @xtal: Cristal frequency as described by &enum helene_xtal
+ * @fe: Frontend for which connects this tuner
+ */
+struct helene_config {
+ u8 i2c_address;
+ u8 xtal_freq_mhz;
+ void *set_tuner_priv;
+ int (*set_tuner_callback)(void *, int);
+ enum helene_xtal xtal;
+
+ struct dvb_frontend *fe;
+};
+
+#if IS_REACHABLE(CONFIG_DVB_HELENE)
+/**
+ * helene_attach - Attach a helene tuner (terrestrial and cable standards)
+ *
+ * @fe: frontend to be attached
+ * @config: pointer to &struct helene_config with tuner configuration.
+ * @i2c: i2c adapter to use.
+ *
+ * return: FE pointer on success, NULL on failure.
+ */
+extern struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
+ const struct helene_config *config,
+ struct i2c_adapter *i2c);
+
+/**
+ * helene_attach_s - Attach a helene tuner (satellite standards)
+ *
+ * @fe: frontend to be attached
+ * @config: pointer to &struct helene_config with tuner configuration.
+ * @i2c: i2c adapter to use.
+ *
+ * return: FE pointer on success, NULL on failure.
+ */
+extern struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
+ const struct helene_config *config,
+ struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
+ const struct helene_config *config,
+ struct i2c_adapter *i2c)
+{
+ pr_warn("%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+static inline struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
+ const struct helene_config *config,
+ struct i2c_adapter *i2c)
+{
+ pr_warn("%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif
+
+#endif