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>
39 #include <linux/slab.h>
41 #include <linux/dvb/frontend.h>
46 * Maximum number of Delivery systems per frontend. It
47 * should be smaller or equal to 32
52 * struct dvb_frontend_tune_settings - parameters to adjust frontend tuning
54 * @min_delay_ms: minimum delay for tuning, in ms
55 * @step_size: step size between two consecutive frequencies
56 * @max_drift: maximum drift
58 * NOTE: step_size is in Hz, for terrestrial/cable or kHz for satellite
60 struct dvb_frontend_tune_settings {
69 * struct dvb_tuner_info - Frontend name and min/max ranges/bandwidths
71 * @name: name of the Frontend
72 * @frequency_min: minimal frequency supported
73 * @frequency_max: maximum frequency supported
74 * @frequency_step: frequency step
75 * @bandwidth_min: minimal frontend bandwidth supported
76 * @bandwidth_max: maximum frontend bandwidth supported
77 * @bandwidth_step: frontend bandwidth step
79 * NOTE: frequency parameters are in Hz, for terrestrial/cable or kHz for
82 struct dvb_tuner_info {
95 * struct analog_parameters - Parameters to tune into an analog/radio channel
97 * @frequency: Frequency used by analog TV tuner (either in 62.5 kHz step,
98 * for TV, or 62.5 Hz for radio)
99 * @mode: Tuner mode, as defined on enum v4l2_tuner_type
100 * @audmode: Audio mode as defined for the rxsubchans field at videodev2.h,
101 * e. g. V4L2_TUNER_MODE_*
102 * @std: TV standard bitmap as defined at videodev2.h, e. g. V4L2_STD_*
104 * Hybrid tuners should be supported by both V4L2 and DVB APIs. This
105 * struct contains the data that are used by the V4L2 side. To avoid
106 * dependencies from V4L2 headers, all enums here are declared as integers.
108 struct analog_parameters {
109 unsigned int frequency;
111 unsigned int audmode;
116 DVBFE_TUNER_FREQUENCY = (1 << 0),
117 DVBFE_TUNER_TUNERSTEP = (1 << 1),
118 DVBFE_TUNER_IFFREQ = (1 << 2),
119 DVBFE_TUNER_BANDWIDTH = (1 << 3),
120 DVBFE_TUNER_REFCLOCK = (1 << 4),
121 DVBFE_TUNER_IQSENSE = (1 << 5),
122 DVBFE_TUNER_DUMMY = (1 << 31)
126 * enum dvbfe_algo - defines the algorithm used to tune into a channel
128 * @DVBFE_ALGO_HW: Hardware Algorithm -
129 * Devices that support this algorithm do everything in hardware
130 * and no software support is needed to handle them.
131 * Requesting these devices to LOCK is the only thing required,
132 * device is supposed to do everything in the hardware.
134 * @DVBFE_ALGO_SW: Software Algorithm -
135 * These are dumb devices, that require software to do everything
137 * @DVBFE_ALGO_CUSTOM: Customizable Agorithm -
138 * Devices having this algorithm can be customized to have specific
139 * algorithms in the frontend driver, rather than simply doing a
140 * software zig-zag. In this case the zigzag maybe hardware assisted
141 * or it maybe completely done in hardware. In all cases, usage of
142 * this algorithm, in conjunction with the search and track
143 * callbacks, utilizes the driver specific algorithm.
145 * @DVBFE_ALGO_RECOVERY: Recovery Algorithm -
146 * These devices have AUTO recovery capabilities from LOCK failure
149 DVBFE_ALGO_HW = (1 << 0),
150 DVBFE_ALGO_SW = (1 << 1),
151 DVBFE_ALGO_CUSTOM = (1 << 2),
152 DVBFE_ALGO_RECOVERY = (1 << 31)
165 * enum dvbfe_search - search callback possible return status
167 * @DVBFE_ALGO_SEARCH_SUCCESS:
168 * The frontend search algorithm completed and returned successfully
170 * @DVBFE_ALGO_SEARCH_ASLEEP:
171 * The frontend search algorithm is sleeping
173 * @DVBFE_ALGO_SEARCH_FAILED:
174 * The frontend search for a signal failed
176 * @DVBFE_ALGO_SEARCH_INVALID:
177 * The frontend search algorith was probably supplied with invalid
178 * parameters and the search is an invalid one
180 * @DVBFE_ALGO_SEARCH_ERROR:
181 * The frontend search algorithm failed due to some error
183 * @DVBFE_ALGO_SEARCH_AGAIN:
184 * The frontend search algorithm was requested to search again
187 DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0),
188 DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1),
189 DVBFE_ALGO_SEARCH_FAILED = (1 << 2),
190 DVBFE_ALGO_SEARCH_INVALID = (1 << 3),
191 DVBFE_ALGO_SEARCH_AGAIN = (1 << 4),
192 DVBFE_ALGO_SEARCH_ERROR = (1 << 31),
196 struct dvb_tuner_ops {
198 struct dvb_tuner_info info;
200 int (*release)(struct dvb_frontend *fe);
201 int (*init)(struct dvb_frontend *fe);
202 int (*sleep)(struct dvb_frontend *fe);
203 int (*suspend)(struct dvb_frontend *fe);
204 int (*resume)(struct dvb_frontend *fe);
206 /** This is for simple PLLs - set all parameters in one go. */
207 int (*set_params)(struct dvb_frontend *fe);
208 int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);
210 /** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
211 int (*calc_regs)(struct dvb_frontend *fe, u8 *buf, int buf_len);
213 /** This is to allow setting tuner-specific configs */
214 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
216 int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency);
217 int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
218 int (*get_if_frequency)(struct dvb_frontend *fe, u32 *frequency);
220 #define TUNER_STATUS_LOCKED 1
221 #define TUNER_STATUS_STEREO 2
222 int (*get_status)(struct dvb_frontend *fe, u32 *status);
223 int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
224 int (*get_afc)(struct dvb_frontend *fe, s32 *afc);
226 /** These are provided separately from set_params in order to facilitate silicon
227 * tuners which require sophisticated tuning loops, controlling each parameter separately. */
228 int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
229 int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
232 * These are provided separately from set_params in order to facilitate silicon
233 * tuners which require sophisticated tuning loops, controlling each parameter separately.
235 int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
236 int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
239 struct analog_demod_info {
243 struct analog_demod_ops {
245 struct analog_demod_info info;
247 void (*set_params)(struct dvb_frontend *fe,
248 struct analog_parameters *params);
249 int (*has_signal)(struct dvb_frontend *fe, u16 *signal);
250 int (*get_afc)(struct dvb_frontend *fe, s32 *afc);
251 void (*tuner_status)(struct dvb_frontend *fe);
252 void (*standby)(struct dvb_frontend *fe);
253 void (*release)(struct dvb_frontend *fe);
254 int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
256 /** This is to allow setting tuner-specific configuration */
257 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
260 struct dtv_frontend_properties;
262 struct dvb_frontend_ops {
264 struct dvb_frontend_info info;
266 u8 delsys[MAX_DELSYS];
268 void (*release)(struct dvb_frontend* fe);
269 void (*release_sec)(struct dvb_frontend* fe);
271 int (*init)(struct dvb_frontend* fe);
272 int (*sleep)(struct dvb_frontend* fe);
274 int (*write)(struct dvb_frontend* fe, const u8 buf[], int len);
276 /* if this is set, it overrides the default swzigzag */
277 int (*tune)(struct dvb_frontend* fe,
279 unsigned int mode_flags,
281 enum fe_status *status);
282 /* get frontend tuning algorithm from the module */
283 enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);
285 /* these two are only used for the swzigzag code */
286 int (*set_frontend)(struct dvb_frontend *fe);
287 int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings);
289 int (*get_frontend)(struct dvb_frontend *fe);
291 int (*read_status)(struct dvb_frontend *fe, enum fe_status *status);
292 int (*read_ber)(struct dvb_frontend* fe, u32* ber);
293 int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength);
294 int (*read_snr)(struct dvb_frontend* fe, u16* snr);
295 int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks);
297 int (*diseqc_reset_overload)(struct dvb_frontend* fe);
298 int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd);
299 int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply);
300 int (*diseqc_send_burst)(struct dvb_frontend *fe,
301 enum fe_sec_mini_cmd minicmd);
302 int (*set_tone)(struct dvb_frontend *fe, enum fe_sec_tone_mode tone);
303 int (*set_voltage)(struct dvb_frontend *fe,
304 enum fe_sec_voltage voltage);
305 int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg);
306 int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
307 int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
308 int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
309 int (*set_lna)(struct dvb_frontend *);
311 /* These callbacks are for devices that implement their own
312 * tuning algorithms, rather than a simple swzigzag
314 enum dvbfe_search (*search)(struct dvb_frontend *fe);
316 struct dvb_tuner_ops tuner_ops;
317 struct analog_demod_ops analog_ops;
319 int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
320 int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
326 struct dvb_fe_events {
327 struct dvb_frontend_event events[MAX_EVENT];
331 wait_queue_head_t wait_queue;
336 struct dtv_frontend_properties {
342 enum fe_modulation modulation;
344 enum fe_sec_voltage voltage;
345 enum fe_sec_tone_mode sectone;
346 enum fe_spectral_inversion inversion;
347 enum fe_code_rate fec_inner;
348 enum fe_transmit_mode transmission_mode;
349 u32 bandwidth_hz; /* 0 = AUTO */
350 enum fe_guard_interval guard_interval;
351 enum fe_hierarchy hierarchy;
353 enum fe_code_rate code_rate_HP;
354 enum fe_code_rate code_rate_LP;
357 enum fe_rolloff rolloff;
359 enum fe_delivery_system delivery_system;
361 enum fe_interleaving interleaving;
363 /* ISDB-T specifics */
364 u8 isdbt_partial_reception;
366 u8 isdbt_sb_subchannel;
367 u32 isdbt_sb_segment_idx;
368 u32 isdbt_sb_segment_count;
369 u8 isdbt_layer_enabled;
372 enum fe_code_rate fec;
373 enum fe_modulation modulation;
377 /* Multistream specifics */
380 /* ATSC-MH specifics */
388 u8 atscmh_rs_frame_mode;
389 u8 atscmh_rs_frame_ensemble;
390 u8 atscmh_rs_code_mode_pri;
391 u8 atscmh_rs_code_mode_sec;
392 u8 atscmh_sccc_block_mode;
393 u8 atscmh_sccc_code_mode_a;
394 u8 atscmh_sccc_code_mode_b;
395 u8 atscmh_sccc_code_mode_c;
396 u8 atscmh_sccc_code_mode_d;
400 /* statistics data */
401 struct dtv_fe_stats strength;
402 struct dtv_fe_stats cnr;
403 struct dtv_fe_stats pre_bit_error;
404 struct dtv_fe_stats pre_bit_count;
405 struct dtv_fe_stats post_bit_error;
406 struct dtv_fe_stats post_bit_count;
407 struct dtv_fe_stats block_error;
408 struct dtv_fe_stats block_count;
411 #define DVB_FE_NO_EXIT 0
412 #define DVB_FE_NORMAL_EXIT 1
413 #define DVB_FE_DEVICE_REMOVED 2
414 #define DVB_FE_DEVICE_RESUME 3
416 struct dvb_frontend {
417 struct dvb_frontend_ops ops;
418 struct dvb_adapter *dvb;
419 void *demodulator_priv;
423 void *analog_demod_priv;
424 struct dtv_frontend_properties dtv_property_cache;
425 #define DVB_FRONTEND_COMPONENT_TUNER 0
426 #define DVB_FRONTEND_COMPONENT_DEMOD 1
427 int (*callback)(void *adapter_priv, int component, int cmd, int arg);
432 extern int dvb_register_frontend(struct dvb_adapter *dvb,
433 struct dvb_frontend *fe);
435 extern int dvb_unregister_frontend(struct dvb_frontend *fe);
437 extern void dvb_frontend_detach(struct dvb_frontend *fe);
439 extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
440 extern int dvb_frontend_suspend(struct dvb_frontend *fe);
441 extern int dvb_frontend_resume(struct dvb_frontend *fe);
443 extern void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec);