DVB Update [PATCH 2/31] frontend driver api overhaul
From: Manu Abraham
Date: Thu Sep 04 2008 - 16:23:37 EST
>From 1d7134c1f2c34eade3ab5526ff301e98e97346a8 Mon Sep 17 00:00:00 2001
From: Manu Abraham <manu@xxxxxxxxxxx>
Date: Thu, 4 Sep 2008 11:55:41 +0200
Subject: [PATCH] DVB Frontend driver API overhaul
* Add support for different frontend driver tuning algorithms
* Add support for tuning algorithms required by sophisticated
silicon tuners
* Add new callbacks for use with multistandard drivers
From: Manu Abraham <abraham.manu@xxxxxxxxx>
Signed-off-by: Manu Abraham <manu@xxxxxxxxxxx>
dvb_frontend.h | 151
+++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 146 insertions(+), 5 deletions(-)
>From 1d7134c1f2c34eade3ab5526ff301e98e97346a8 Mon Sep 17 00:00:00 2001
From: Manu Abraham <manu@xxxxxxxxxxx>
Date: Thu, 4 Sep 2008 11:55:41 +0200
Subject: [PATCH] DVB Frontend driver API overhaul
* Add support for different frontend driver tuning algorithms
* Add support for tuning algorithms required by sophisticated
silicon tuners
* Add new callbacks for use with multistandard drivers
From: Manu Abraham <abraham.manu@xxxxxxxxx>
Signed-off-by: Manu Abraham <manu@xxxxxxxxxxx>
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index aa4133f..0621287 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -8,6 +8,9 @@
* Overhauled by Holger Waechtler
* Kernel I2C stuff by Michael Hunold <hunold@xxxxxxxxxxxxxx>
*
+ * Overhauled for Silicon Tuners, Search Algorithms and multiprotocol
+ * support by Manu Abraham <abraham.manu@xxxxxxxxx>
+ *
* 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
@@ -46,6 +49,7 @@ struct dvb_frontend_tune_settings {
int step_size;
int max_drift;
struct dvb_frontend_parameters parameters;
+ struct dvbfe_params fe_params;
};
struct dvb_frontend;
@@ -69,6 +73,124 @@ struct analog_parameters {
u64 std;
};
+enum dvbfe_modcod {
+ DVBFE_MODCOD_DUMMY_PLFRAME = 0,
+ DVBFE_MODCOD_QPSK_1_4,
+ DVBFE_MODCOD_QPSK_1_3,
+ DVBFE_MODCOD_QPSK_2_5,
+ DVBFE_MODCOD_QPSK_1_2,
+ DVBFE_MODCOD_QPSK_3_5,
+ DVBFE_MODCOD_QPSK_2_3,
+ DVBFE_MODCOD_QPSK_3_4,
+ DVBFE_MODCOD_QPSK_4_5,
+ DVBFE_MODCOD_QPSK_5_6,
+ DVBFE_MODCOD_QPSK_8_9,
+ DVBFE_MODCOD_QPSK_9_10,
+ DVBFE_MODCOD_8PSK_3_5,
+ DVBFE_MODCOD_8PSK_2_3,
+ DVBFE_MODCOD_8PSK_3_4,
+ DVBFE_MODCOD_8PSK_5_6,
+ DVBFE_MODCOD_8PSK_8_9,
+ DVBFE_MODCOD_8PSK_9_10,
+ DVBFE_MODCOD_16APSK_2_3,
+ DVBFE_MODCOD_16APSK_3_4,
+ DVBFE_MODCOD_16APSK_4_5,
+ DVBFE_MODCOD_16APSK_5_6,
+ DVBFE_MODCOD_16APSK_8_9,
+ DVBFE_MODCOD_16APSK_9_10,
+ DVBFE_MODCOD_32APSK_3_4,
+ DVBFE_MODCOD_32APSK_4_5,
+ DVBFE_MODCOD_32APSK_5_6,
+ DVBFE_MODCOD_32APSK_8_9,
+ DVBFE_MODCOD_32APSK_9_10,
+ DVBFE_MODCOD_RESERVED_1,
+ DVBFE_MODCOD_BPSK_1_3,
+ DVBFE_MODCOD_BPSK_1_4,
+ DVBFE_MODCOD_RESERVED_2
+};
+
+enum tuner_param {
+ DVBFE_TUNER_FREQUENCY = (1 << 0),
+ DVBFE_TUNER_TUNERSTEP = (1 << 1),
+ DVBFE_TUNER_IFFREQ = (1 << 2),
+ DVBFE_TUNER_BANDWIDTH = (1 << 3),
+ DVBFE_TUNER_REFCLOCK = (1 << 4),
+ DVBFE_TUNER_IQSENSE = (1 << 5),
+ DVBFE_TUNER_DUMMY = (1 << 31)
+};
+
+/*
+ * ALGO_HW: (Hardware Algorithm)
+ * ----------------------------------------------------------------
+ * Devices that support this algorithm do everything in hardware
+ * and no software support is needed to handle them.
+ * Requesting these devices to LOCK is the only thing required,
+ * device is supposed to do everything in the hardware.
+ *
+ * ALGO_SW: (Software Algorithm)
+ * ----------------------------------------------------------------
+ * These are dumb devices, that require software to do everything
+ *
+ * ALGO_CUSTOM: (Customizable Agorithm)
+ * ----------------------------------------------------------------
+ * Devices having this algorithm can be customized to have specific
+ * algorithms in the frontend driver, rather than simply doing a
+ * software zig-zag. In this case the zigzag maybe hardware assisted
+ * or it maybe completely done in hardware. In all cases, usage of
+ * this algorithm, in conjunction with the search and track
+ * callbacks, utilizes the driver specific algorithm.
+ *
+ * ALGO_RECOVERY: (Recovery Algorithm)
+ * ----------------------------------------------------------------
+ * These devices has AUTO recovery capabilities from LOCK failure
+ */
+enum dvbfe_algo {
+ DVBFE_ALGO_HW = (1 << 0),
+ DVBFE_ALGO_SW = (1 << 1),
+ DVBFE_ALGO_CUSTOM = (1 << 2),
+ DVBFE_ALGO_RECOVERY = (1 << 31)
+};
+
+struct tuner_state {
+ u32 frequency;
+ u32 tunerstep;
+ u32 ifreq;
+ u32 bandwidth;
+ u32 iqsense;
+ u32 refclock;
+};
+
+/*
+ * search callback possible return status
+ *
+ * DVBFE_ALGO_SEARCH_SUCCESS
+ * The frontend search algorithm completed and returned succesfully
+ *
+ * DVBFE_ALGO_SEARCH_ASLEEP
+ * The frontend search algorithm is sleeping
+ *
+ * DVBFE_ALGO_SEARCH_FAILED
+ * The frontend search for a signal failed
+ *
+ * DVBFE_ALGO_SEARCH_INVALID
+ * The frontend search algorith was probably supplied with invalid
+ * parameters and the search is an invalid one
+ *
+ * DVBFE_ALGO_SEARCH_ERROR
+ * The frontend search algorithm failed due to some error
+ *
+ * DVBFE_ALGO_SEARCH_AGAIN
+ * The frontend search algorithm was requested to search again
+ */
+enum dvbfe_search {
+ DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0),
+ DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1),
+ DVBFE_ALGO_SEARCH_FAILED = (1 << 2),
+ DVBFE_ALGO_SEARCH_INVALID = (1 << 3),
+ DVBFE_ALGO_SEARCH_AGAIN = (1 << 4),
+ DVBFE_ALGO_SEARCH_ERROR = (1 << 31),
+};
+
struct dvb_tuner_ops {
struct dvb_tuner_info info;
@@ -95,10 +217,12 @@ struct dvb_tuner_ops {
int (*get_status)(struct dvb_frontend *fe, u32 *status);
int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
- /** 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);
+ /**
+ * These are provided seperately from set_params in order to facilitate silicon
+ * tuners which require sophisticated tuning loops, controlling each parameter seperately.
+ */
+ int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
+ int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
};
struct analog_demod_info {
@@ -142,7 +266,7 @@ struct dvb_frontend_ops {
unsigned int *delay,
fe_status_t *status);
/* get frontend tuning algorithm from the module */
- int (*get_frontend_algo)(struct dvb_frontend *fe);
+ enum dvbfe_algo (*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);
@@ -167,6 +291,18 @@ struct dvb_frontend_ops {
int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
+ /* These callbacks are based on the superseding IOCTL's */
+ int (*set_params)(struct dvb_frontend *fe, struct dvbfe_params *fe_params);
+ int (*get_params)(struct dvb_frontend *fe, struct dvbfe_params *fe_params);
+ int (*get_info)(struct dvb_frontend *fe, struct dvbfe_info *fe_info);
+ int (*get_delsys)(struct dvb_frontend *fe, enum dvbfe_delsys *fe_delsys);
+
+ /* These callbacks are for devices that implement their own
+ * tuning algorithms, rather than a simple swzigzag
+ */
+ enum dvbfe_search (*search)(struct dvb_frontend *fe, struct dvbfe_params *fe_params);
+ int (*track)(struct dvb_frontend *fe, struct dvbfe_params *fe_params);
+
struct dvb_tuner_ops tuner_ops;
struct analog_demod_ops analog_ops;
};
@@ -190,6 +326,7 @@ struct dvb_frontend {
void *frontend_priv;
void *sec_priv;
void *analog_demod_priv;
+ u32 legacy;
};
extern int dvb_register_frontend(struct dvb_adapter *dvb,
@@ -204,4 +341,8 @@ 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);
+extern void decode_dvbs2_modcod(u32 modcod,
+ enum dvbfe_modulation *modulation,
+ enum dvbfe_fec *fec);
+
#endif