summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb-frontends/zd1301_demod.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb-frontends/zd1301_demod.h')
-rw-r--r--drivers/media/dvb-frontends/zd1301_demod.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/zd1301_demod.h b/drivers/media/dvb-frontends/zd1301_demod.h
new file mode 100644
index 000000000..01eaacf76
--- /dev/null
+++ b/drivers/media/dvb-frontends/zd1301_demod.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ZyDAS ZD1301 driver (demodulator)
+ *
+ * Copyright (C) 2015 Antti Palosaari <crope@iki.fi>
+ */
+
+#ifndef ZD1301_DEMOD_H
+#define ZD1301_DEMOD_H
+
+#include <linux/platform_device.h>
+#include <linux/dvb/frontend.h>
+#include <media/dvb_frontend.h>
+
+/**
+ * struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver
+ * @reg_priv: First argument of reg_read and reg_write callbacks.
+ * @reg_read: Register read callback.
+ * @reg_write: Register write callback.
+ */
+struct zd1301_demod_platform_data {
+ void *reg_priv;
+ int (*reg_read)(void *, u16, u8 *);
+ int (*reg_write)(void *, u16, u8);
+};
+
+#if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD)
+/**
+ * zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend
+ * @pdev: Pointer to platform device
+ *
+ * Return: Pointer to DVB frontend which given platform device owns.
+ */
+struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *pdev);
+
+/**
+ * zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter
+ * @pdev: Pointer to platform device
+ *
+ * Return: Pointer to I2C adapter which given platform device owns.
+ */
+struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev);
+
+#else
+
+static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+
+ return NULL;
+}
+static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+
+ return NULL;
+}
+
+#endif
+
+#endif /* ZD1301_DEMOD_H */