diff options
Diffstat (limited to 'v4l/kernel-2.6.21/dvb_frontend.h')
| -rw-r--r-- | v4l/kernel-2.6.21/dvb_frontend.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/v4l/kernel-2.6.21/dvb_frontend.h b/v4l/kernel-2.6.21/dvb_frontend.h new file mode 100644 index 0000000..f233d78 --- /dev/null +++ b/v4l/kernel-2.6.21/dvb_frontend.h @@ -0,0 +1,169 @@ +/* + * dvb_frontend.h + * + * Copyright (C) 2001 convergence integrated media GmbH + * Copyright (C) 2004 convergence GmbH + * + * Written by Ralph Metzler + * Overhauled by Holger Waechtler + * Kernel I2C stuff by Michael Hunold <hunold@convergence.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#ifndef _DVB_FRONTEND_H_ +#define _DVB_FRONTEND_H_ + +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/ioctl.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/delay.h> + +#include <linux/dvb/frontend.h> + +#include "dvbdev.h" + +struct dvb_frontend_tune_settings { + int min_delay_ms; + int step_size; + int max_drift; + struct dvb_frontend_parameters parameters; +}; + +struct dvb_frontend; + +struct dvb_tuner_info { + char name[128]; + + u32 frequency_min; + u32 frequency_max; + u32 frequency_step; + + u32 bandwidth_min; + u32 bandwidth_max; + u32 bandwidth_step; +}; + +struct dvb_tuner_ops { + + struct dvb_tuner_info info; + + int (*release)(struct dvb_frontend *fe); + int (*init)(struct dvb_frontend *fe); + int (*sleep)(struct dvb_frontend *fe); + + /** This is for simple PLLs - set all parameters in one go. */ + int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p); + + /** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */ + int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len); + + int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency); + int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth); + +#define TUNER_STATUS_LOCKED 1 + int (*get_status)(struct dvb_frontend *fe, u32 *status); + + /** These are provided seperately from set_params in order to facilitate silicon + * tuners which require sophisticated tuning loops, controlling each parameter seperately. */ + int (*set_frequency)(struct dvb_frontend *fe, u32 frequency); + int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth); +}; + +struct dvb_frontend_ops { + + struct dvb_frontend_info info; + + void (*release)(struct dvb_frontend* fe); + void (*release_sec)(struct dvb_frontend* fe); + + int (*init)(struct dvb_frontend* fe); + int (*sleep)(struct dvb_frontend* fe); + + int (*write)(struct dvb_frontend* fe, u8* buf, int len); + + /* if this is set, it overrides the default swzigzag */ + int (*tune)(struct dvb_frontend* fe, + struct dvb_frontend_parameters* params, + unsigned int mode_flags, + int *delay, + fe_status_t *status); + /* get frontend tuning algorithm from the module */ + int (*get_frontend_algo)(struct dvb_frontend *fe); + + /* these two are only used for the swzigzag code */ + int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params); + int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings); + + int (*get_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params); + + int (*read_status)(struct dvb_frontend* fe, fe_status_t* status); + int (*read_ber)(struct dvb_frontend* fe, u32* ber); + int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength); + int (*read_snr)(struct dvb_frontend* fe, u16* snr); + int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks); + + int (*diseqc_reset_overload)(struct dvb_frontend* fe); + int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd); + int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply); + int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd); + int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone); + int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage); + int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg); + int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd); + int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable); + int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire); + + struct dvb_tuner_ops tuner_ops; +}; + +#define MAX_EVENT 8 + +struct dvb_fe_events { + struct dvb_frontend_event events[MAX_EVENT]; + int eventw; + int eventr; + int overflow; + wait_queue_head_t wait_queue; + struct semaphore sem; +}; + +struct dvb_frontend { + struct dvb_frontend_ops ops; + struct dvb_adapter *dvb; + void* demodulator_priv; + void* tuner_priv; + void* frontend_priv; + void* sec_priv; +}; + +extern int dvb_register_frontend(struct dvb_adapter* dvb, + struct dvb_frontend* fe); + +extern int dvb_unregister_frontend(struct dvb_frontend* fe); + +extern void dvb_frontend_detach(struct dvb_frontend* fe); + +extern void dvb_frontend_reinitialise(struct dvb_frontend *fe); + +extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec); +extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime); + +#endif |