cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

stb6100_cfg.h (2132B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3	STB6100 Silicon Tuner
      4	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
      5
      6	Copyright (C) ST Microelectronics
      7
      8*/
      9
     10#include <linux/dvb/frontend.h>
     11#include <media/dvb_frontend.h>
     12
     13static int stb6100_get_frequency(struct dvb_frontend *fe, u32 *frequency)
     14{
     15	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
     16	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
     17	int err = 0;
     18
     19	if (tuner_ops->get_frequency) {
     20		err = tuner_ops->get_frequency(fe, frequency);
     21		if (err < 0) {
     22			printk("%s: Invalid parameter\n", __func__);
     23			return err;
     24		}
     25	}
     26	return 0;
     27}
     28
     29static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
     30{
     31	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
     32	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
     33	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
     34	u32 bw = c->bandwidth_hz;
     35	int err = 0;
     36
     37	c->frequency = frequency;
     38	c->bandwidth_hz = 0;		/* Don't adjust the bandwidth */
     39
     40	if (tuner_ops->set_params) {
     41		err = tuner_ops->set_params(fe);
     42		c->bandwidth_hz = bw;
     43		if (err < 0) {
     44			printk("%s: Invalid parameter\n", __func__);
     45			return err;
     46		}
     47	}
     48	return 0;
     49}
     50
     51static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
     52{
     53	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
     54	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
     55	int err = 0;
     56
     57	if (tuner_ops->get_bandwidth) {
     58		err = tuner_ops->get_bandwidth(fe, bandwidth);
     59		if (err < 0) {
     60			printk("%s: Invalid parameter\n", __func__);
     61			return err;
     62		}
     63	}
     64	return 0;
     65}
     66
     67static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
     68{
     69	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
     70	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
     71	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
     72	u32 freq = c->frequency;
     73	int err = 0;
     74
     75	c->bandwidth_hz = bandwidth;
     76	c->frequency = 0;		/* Don't adjust the frequency */
     77
     78	if (tuner_ops->set_params) {
     79		err = tuner_ops->set_params(fe);
     80		c->frequency = freq;
     81		if (err < 0) {
     82			printk("%s: Invalid parameter\n", __func__);
     83			return err;
     84		}
     85	}
     86	return 0;
     87}