Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  Driver for Zarlink DVB-T MT352 demodulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Written by Holger Waechtler <holger@qanu.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *	 and Daniel Mack <daniel@qanu.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *  AVerMedia AVerTV DVB-T 771 support by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *       Wolfram Joost <dbox2@frokaschwei.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  *  Support for Samsung TDTC9251DH01C(M) tuner
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *  Copyright (C) 2004 Antonio Mancuso <antonio.mancuso@digitaltelevision.it>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *                     Amauri  Celani  <acelani@essegi.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *  DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *       Christopher Pascoe <c.pascoe@itee.uq.edu.au>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #ifndef MT352_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define MT352_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/dvb/frontend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct mt352_config
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	/* the demodulator's i2c address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	u8 demod_address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	/* frequencies in kHz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	int adc_clock;  // default: 20480
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	int if2;        // default: 36166
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	/* set if no pll is connected to the secondary i2c bus */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	int no_tuner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	/* Initialise the demodulator and PLL. Cannot be NULL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	int (*demod_init)(struct dvb_frontend* fe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #if IS_REACHABLE(CONFIG_DVB_MT352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) extern struct dvb_frontend* mt352_attach(const struct mt352_config* config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 					 struct i2c_adapter* i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 					 struct i2c_adapter* i2c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #endif // CONFIG_DVB_MT352
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	int r = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	if (fe->ops.write)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		r = fe->ops.write(fe, buf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif // MT352_H