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87 lines
2.1 KiB
87 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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STB6100 Silicon Tuner |
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Copyright (C) Manu Abraham ([email protected]) |
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Copyright (C) ST Microelectronics |
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*/ |
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#include <linux/dvb/frontend.h> |
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#include <media/dvb_frontend.h> |
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static int stb6100_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
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{ |
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struct dvb_frontend_ops *frontend_ops = &fe->ops; |
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; |
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int err = 0; |
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if (tuner_ops->get_frequency) { |
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err = tuner_ops->get_frequency(fe, frequency); |
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if (err < 0) { |
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printk("%s: Invalid parameter\n", __func__); |
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return err; |
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} |
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} |
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return 0; |
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} |
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static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency) |
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{ |
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struct dvb_frontend_ops *frontend_ops = &fe->ops; |
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; |
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struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
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u32 bw = c->bandwidth_hz; |
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int err = 0; |
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c->frequency = frequency; |
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c->bandwidth_hz = 0; /* Don't adjust the bandwidth */ |
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if (tuner_ops->set_params) { |
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err = tuner_ops->set_params(fe); |
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c->bandwidth_hz = bw; |
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if (err < 0) { |
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printk("%s: Invalid parameter\n", __func__); |
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return err; |
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} |
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} |
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return 0; |
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} |
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static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) |
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{ |
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struct dvb_frontend_ops *frontend_ops = &fe->ops; |
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; |
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int err = 0; |
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if (tuner_ops->get_bandwidth) { |
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err = tuner_ops->get_bandwidth(fe, bandwidth); |
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if (err < 0) { |
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printk("%s: Invalid parameter\n", __func__); |
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return err; |
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} |
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} |
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return 0; |
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} |
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static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth) |
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{ |
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struct dvb_frontend_ops *frontend_ops = &fe->ops; |
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struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; |
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struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
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u32 freq = c->frequency; |
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int err = 0; |
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c->bandwidth_hz = bandwidth; |
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c->frequency = 0; /* Don't adjust the frequency */ |
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if (tuner_ops->set_params) { |
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err = tuner_ops->set_params(fe); |
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c->frequency = freq; |
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if (err < 0) { |
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printk("%s: Invalid parameter\n", __func__); |
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return err; |
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} |
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} |
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return 0; |
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}
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