/*
* dvb_frontend.h
*
- * Copyright (C) 2001 convergence integrated media GmbH
- * Copyright (C) 2004 convergence GmbH
+ * Copyright (C) 2001 Ralph Metzler for convergence integrated media GmbH
+ * overhauled by Holger Waechtler for 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
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/errno.h>
-#include <linux/delay.h>
#include <linux/dvb/frontend.h>
+#include "dvb_i2c.h"
#include "dvbdev.h"
-/* FIXME: Move to i2c-id.h */
-#define I2C_DRIVERID_DVBFE_SP8870 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_CX22700 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_AT76C651 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_CX24110 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_CX22702 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_DIB3000MB I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_DST I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_DUMMY I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_L64781 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_MT312 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_MT352 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_NXT6000 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_SP887X I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_STV0299 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_TDA1004X I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_TDA8083 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_VES1820 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_VES1X93 I2C_DRIVERID_EXP2
-#define I2C_DRIVERID_DVBFE_TDA80XX I2C_DRIVERID_EXP2
+
+/**
+ * when before_ioctl is registered and returns value 0, ioctl and after_ioctl
+ * are not executed.
+ */
+
+struct dvb_frontend {
+ int (*before_ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
+ int (*ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
+ int (*after_ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
+ void (*notifier_callback) (fe_status_t s, void *data);
+ struct dvb_i2c_bus *i2c;
+ void *before_after_data; /* can be used by hardware module... */
+ void *notifier_data; /* can be used by hardware module... */
+ void *data; /* can be used by hardware module... */
+};
+
struct dvb_frontend_tune_settings {
int min_delay_ms;
int step_size;
struct dvb_frontend_parameters parameters;
};
-struct dvb_frontend;
-
-struct dvb_frontend_ops {
- struct dvb_frontend_info info;
-
- void (*release)(struct dvb_frontend* fe);
-
- int (*init)(struct dvb_frontend* fe);
- int (*sleep)(struct dvb_frontend* fe);
-
- int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
- int (*get_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 (*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, int arg);
- int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned int cmd);
-};
-
-#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;
-
- struct dvb_device *dvbdev;
- struct dvb_frontend_parameters parameters;
- struct dvb_fe_events events;
- struct semaphore sem;
- struct list_head list_head;
- wait_queue_head_t wait_queue;
- pid_t thread_pid;
- unsigned long release_jiffies;
- int state;
- int bending;
- int lnb_drift;
- int inversion;
- int auto_step;
- int auto_sub_step;
- int started_auto_step;
- int min_delay;
- int max_drift;
- int step_size;
- int exit;
- int wakeup;
- fe_status_t status;
-};
-
-extern int dvb_register_frontend(struct dvb_adapter* dvb,
- struct dvb_frontend* fe);
-
-extern int dvb_unregister_frontend(struct dvb_frontend* fe);
+/**
+ * private frontend command ioctl's.
+ * keep them in sync with the public ones defined in linux/dvb/frontend.h
+ *
+ * FE_SLEEP. Ioctl used to put frontend into a low power mode.
+ * FE_INIT. Ioctl used to initialise the frontend.
+ * FE_GET_TUNE_SETTINGS. Get the frontend-specific tuning loop settings for the supplied set of parameters.
+ */
+#define FE_SLEEP _IO('v', 80)
+#define FE_INIT _IO('v', 81)
+#define FE_GET_TUNE_SETTINGS _IOWR('v', 83, struct dvb_frontend_tune_settings)
+
+
+extern int
+dvb_register_frontend (int (*ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg),
+ struct dvb_i2c_bus *i2c,
+ void *data,
+ struct dvb_frontend_info *info);
+
+extern int
+dvb_unregister_frontend (int (*ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg),
+ struct dvb_i2c_bus *i2c);
+
+
+/**
+ * Add special ioctl code performed before and after the main ioctl
+ * to all frontend devices on the specified DVB adapter.
+ * This is necessairy because the 22kHz/13V-18V/DiSEqC stuff depends
+ * heavily on the hardware around the frontend, the same tuner can create
+ * these signals on about a million different ways...
+ *
+ * Return value: number of frontends where the ioctl's were applied.
+ */
+extern int
+dvb_add_frontend_ioctls (struct dvb_adapter *adapter,
+ int (*before_ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg),
+ int (*after_ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg),
+ void *before_after_data);
+
+
+extern void
+dvb_remove_frontend_ioctls (struct dvb_adapter *adapter,
+ int (*before_ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg),
+ int (*after_ioctl) (struct dvb_frontend *frontend,
+ unsigned int cmd, void *arg));
+
+extern int
+dvb_add_frontend_notifier (struct dvb_adapter *adapter,
+ void (*callback) (fe_status_t s, void *data),
+ void *data);
+extern void
+dvb_remove_frontend_notifier (struct dvb_adapter *adapter,
+ void (*callback) (fe_status_t s, void *data));
#endif
+
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