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V4L/DVB (3845): DVB core changes for PLL refactoring

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Add tuner_ops structure.
Add calls into dvb_frontend to support the new tuner architecture.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Andrew de Quincey 2006-04-18 17:47:09 -03:00 committed by Mauro Carvalho Chehab
parent 7c25039dbb
commit 7eef5dd6da
2 changed files with 127 additions and 0 deletions
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15
drivers/media/dvb/dvb-core/dvb_frontend.c
View File

@ -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

112
drivers/media/dvb/dvb-core/dvb_frontend.h
View File

@ -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;
};