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-rw-r--r--drivers/media/dvb-frontends/mt352.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/mt352.h b/drivers/media/dvb-frontends/mt352.h
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index 000000000..acb1c3374
--- /dev/null
+++ b/drivers/media/dvb-frontends/mt352.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for Zarlink DVB-T MT352 demodulator
+ *
+ * Written by Holger Waechtler <holger@qanu.de>
+ * and Daniel Mack <daniel@qanu.de>
+ *
+ * AVerMedia AVerTV DVB-T 771 support by
+ * Wolfram Joost <dbox2@frokaschwei.de>
+ *
+ * Support for Samsung TDTC9251DH01C(M) tuner
+ * Copyright (C) 2004 Antonio Mancuso <antonio.mancuso@digitaltelevision.it>
+ * Amauri Celani <acelani@essegi.net>
+ *
+ * DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by
+ * Christopher Pascoe <c.pascoe@itee.uq.edu.au>
+ */
+
+#ifndef MT352_H
+#define MT352_H
+
+#include <linux/dvb/frontend.h>
+
+struct mt352_config
+{
+ /* the demodulator's i2c address */
+ u8 demod_address;
+
+ /* frequencies in kHz */
+ int adc_clock; // default: 20480
+ int if2; // default: 36166
+
+ /* set if no pll is connected to the secondary i2c bus */
+ int no_tuner;
+
+ /* Initialise the demodulator and PLL. Cannot be NULL */
+ int (*demod_init)(struct dvb_frontend* fe);
+};
+
+#if IS_REACHABLE(CONFIG_DVB_MT352)
+extern struct dvb_frontend* mt352_attach(const struct mt352_config* config,
+ struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config,
+ struct i2c_adapter* i2c)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+#endif // CONFIG_DVB_MT352
+
+static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) {
+ int r = 0;
+ if (fe->ops.write)
+ r = fe->ops.write(fe, buf, len);
+ return r;
+}
+
+#endif // MT352_H