diff options
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.c | 15 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.h | 112 |
2 files changed, 127 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 889d4a817c88..bbf441215e79 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -215,6 +215,11 @@ static void dvb_frontend_init(struct dvb_frontend *fe) if (fe->ops->init) fe->ops->init(fe); + if (fe->ops->tuner_ops.init) { + fe->ops->tuner_ops.init(fe); + if (fe->ops->i2c_gate_ctrl) + fe->ops->i2c_gate_ctrl(fe, 0); + } } void dvb_frontend_reinitialise(struct dvb_frontend *fe) @@ -571,6 +576,11 @@ static int dvb_frontend_thread(void *data) if (dvb_powerdown_on_sleep) if (fe->ops->set_voltage) fe->ops->set_voltage(fe, SEC_VOLTAGE_OFF); + if (fe->ops->tuner_ops.sleep) { + fe->ops->tuner_ops.sleep(fe); + if (fe->ops->i2c_gate_ctrl) + fe->ops->i2c_gate_ctrl(fe, 0); + } if (fe->ops->sleep) fe->ops->sleep(fe); } @@ -1085,6 +1095,11 @@ int dvb_unregister_frontend(struct dvb_frontend* fe) mutex_lock(&frontend_mutex); dvb_unregister_device (fepriv->dvbdev); dvb_frontend_stop (fe); + if (fe->ops->tuner_ops.release) { + fe->ops->tuner_ops.release(fe); + if (fe->ops->i2c_gate_ctrl) + fe->ops->i2c_gate_ctrl(fe, 0); + } if (fe->ops->release) fe->ops->release(fe); else diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h index 5926a3b745c9..e0148a9e6633 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -49,6 +49,115 @@ struct dvb_frontend_tune_settings { 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 { + /** + * Description of the tuner. + */ + struct dvb_tuner_info info; + + /** + * Cleanup an attached tuner. + * + * @param fe dvb_frontend structure to clean it up from. + * @return 0 on success, <0 on failure. + */ + int (*release)(struct dvb_frontend *fe); + + /** + * Initialise a tuner. + * + * @param fe dvb_frontend structure. + * @return 0 on success, <0 on failure. + */ + int (*init)(struct dvb_frontend *fe); + + /** + * Set a tuner into low power mode. + * + * @param fe dvb_frontend structure. + * @return 0 on success, <0 on failure. + */ + int (*sleep)(struct dvb_frontend *fe); + + /** + * This is for simple PLLs - set all parameters in one go. + * + * @param fe The dvb_frontend structure. + * @param p The parameters to set. + * @return 0 on success, <0 on failure. + */ + 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. + * + * @param fe The dvb_frontend structure. + * @param p The parameters to set. + * @param buf The buffer to fill with data. For an i2c tuner, the first byte should be the tuner i2c address in linux format. + * @param buf_len Size of buffer in bytes. + * @return Number of bytes used, or <0 on failure. + */ + int (*pllbuf)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len); + + /** + * Get the frequency the tuner was actually set to. + * + * @param fe The dvb_frontend structure. + * @param frequency Where to put it. + * @return 0 on success, or <0 on failure. + */ + int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency); + + /** + * Get the bandwidth the tuner was actually set to. + * + * @param fe The dvb_frontend structure. + * @param bandwidth Where to put it. + * @return 0 on success, or <0 on failure. + */ + int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth); + + /** + * Get the tuner's status. + * + * @param fe The dvb_frontend structure. + * @param status Where to put it. + * @return 0 on success, or <0 on failure. + */ +#define TUNER_STATUS_LOCKED 1 + int (*get_status)(struct dvb_frontend *fe, u32 *status); + + /** + * Set the frequency of the tuner - for complex tuners. + * + * @param fe The dvb_frontend structure. + * @param frequency What to set. + * @return 0 on success, or <0 on failure. + */ + int (*set_frequency)(struct dvb_frontend *fe, u32 frequency); + + /** + * Set the bandwidth of the tuner - for complex tuners. + * + * @param fe The dvb_frontend structure. + * @param bandwidth What to set. + * @return 0 on success, or <0 on failure. + */ + int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth); +}; + struct dvb_frontend_ops { struct dvb_frontend_info info; @@ -86,6 +195,8 @@ struct dvb_frontend_ops { 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); + + struct dvb_tuner_ops tuner_ops; }; #define MAX_EVENT 8 @@ -103,6 +214,7 @@ struct dvb_frontend { struct dvb_frontend_ops* ops; struct dvb_adapter *dvb; void* demodulator_priv; + void* tuner_priv; void* frontend_priv; void* misc_priv; }; |