4 * Copyright (C) 2001 convergence integrated media GmbH
5 * Copyright (C) 2004 convergence GmbH
7 * Written by Ralph Metzler
8 * Overhauled by Holger Waechtler
9 * Kernel I2C stuff by Michael Hunold <hunold@convergence.de>
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public License
13 * as published by the Free Software Foundation; either version 2.1
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
22 * You should have received a copy of the GNU Lesser General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #ifndef _DVB_FRONTEND_H_
29 #define _DVB_FRONTEND_H_
31 #include <linux/types.h>
32 #include <linux/sched.h>
33 #include <linux/ioctl.h>
34 #include <linux/i2c.h>
35 #include <linux/module.h>
36 #include <linux/errno.h>
37 #include <linux/delay.h>
38 #include <linux/mutex.h>
40 #include <linux/dvb/frontend.h>
44 struct dvb_frontend_tune_settings {
48 struct dvb_frontend_parameters parameters;
53 struct dvb_tuner_info {
65 struct analog_parameters {
66 unsigned int frequency;
72 struct dvb_tuner_ops {
74 struct dvb_tuner_info info;
76 int (*release)(struct dvb_frontend *fe);
77 int (*init)(struct dvb_frontend *fe);
78 int (*sleep)(struct dvb_frontend *fe);
80 /** This is for simple PLLs - set all parameters in one go. */
81 int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
82 int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);
84 /** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
85 int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len);
87 /** This is to allow setting tuner-specific configs */
88 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
90 int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency);
91 int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
93 #define TUNER_STATUS_LOCKED 1
94 #define TUNER_STATUS_STEREO 2
95 int (*get_status)(struct dvb_frontend *fe, u32 *status);
96 int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
98 /** These are provided seperately from set_params in order to facilitate silicon
99 * tuners which require sophisticated tuning loops, controlling each parameter seperately. */
100 int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
101 int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
104 struct analog_demod_info {
108 struct analog_demod_ops {
110 struct analog_demod_info info;
112 void (*set_params)(struct dvb_frontend *fe,
113 struct analog_parameters *params);
114 int (*has_signal)(struct dvb_frontend *fe);
115 int (*is_stereo)(struct dvb_frontend *fe);
116 int (*get_afc)(struct dvb_frontend *fe);
117 void (*tuner_status)(struct dvb_frontend *fe);
118 void (*standby)(struct dvb_frontend *fe);
119 void (*release)(struct dvb_frontend *fe);
120 int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
122 /** This is to allow setting tuner-specific configuration */
123 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
126 struct dvb_frontend_ops {
128 struct dvb_frontend_info info;
130 void (*release)(struct dvb_frontend* fe);
131 void (*release_sec)(struct dvb_frontend* fe);
133 int (*init)(struct dvb_frontend* fe);
134 int (*sleep)(struct dvb_frontend* fe);
136 int (*write)(struct dvb_frontend* fe, u8* buf, int len);
138 /* if this is set, it overrides the default swzigzag */
139 int (*tune)(struct dvb_frontend* fe,
140 struct dvb_frontend_parameters* params,
141 unsigned int mode_flags,
143 fe_status_t *status);
144 /* get frontend tuning algorithm from the module */
145 int (*get_frontend_algo)(struct dvb_frontend *fe);
147 /* these two are only used for the swzigzag code */
148 int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
149 int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings);
151 int (*get_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
153 int (*read_status)(struct dvb_frontend* fe, fe_status_t* status);
154 int (*read_ber)(struct dvb_frontend* fe, u32* ber);
155 int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength);
156 int (*read_snr)(struct dvb_frontend* fe, u16* snr);
157 int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks);
159 int (*diseqc_reset_overload)(struct dvb_frontend* fe);
160 int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd);
161 int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply);
162 int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd);
163 int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone);
164 int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
165 int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg);
166 int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
167 int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
168 int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
170 struct dvb_tuner_ops tuner_ops;
171 struct analog_demod_ops analog_ops;
173 int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
174 int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
179 struct dvb_fe_events {
180 struct dvb_frontend_event events[MAX_EVENT];
184 wait_queue_head_t wait_queue;
188 struct dtv_frontend_properties {
194 fe_modulation_t modulation;
196 fe_sec_voltage_t voltage;
197 fe_sec_tone_mode_t sectone;
198 fe_spectral_inversion_t inversion;
199 fe_code_rate_t fec_inner;
200 fe_transmit_mode_t transmission_mode;
201 u32 bandwidth_hz; /* 0 = AUTO */
202 fe_guard_interval_t guard_interval;
203 fe_hierarchy_t hierarchy;
205 fe_code_rate_t code_rate_HP;
206 fe_code_rate_t code_rate_LP;
209 fe_rolloff_t rolloff;
211 fe_delivery_system_t delivery_system;
214 struct dvb_frontend {
215 struct dvb_frontend_ops ops;
216 struct dvb_adapter *dvb;
217 void *demodulator_priv;
221 void *analog_demod_priv;
222 struct dtv_frontend_properties dtv_property_cache;
223 #define DVB_FRONTEND_COMPONENT_TUNER 0
224 int (*callback)(void *adapter_priv, int component, int cmd, int arg);
228 extern int dvb_register_frontend(struct dvb_adapter *dvb,
229 struct dvb_frontend *fe);
231 extern int dvb_unregister_frontend(struct dvb_frontend *fe);
233 extern void dvb_frontend_detach(struct dvb_frontend *fe);
235 extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
237 extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec);
238 extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime);