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This header declares the code and structures used to parse Hauppauge eeproms. As this is part of the V4L2 common, and used by several drivers, let's properly document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
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/*
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* tveeprom - Contains structures and functions to work with Hauppauge
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* eeproms.
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*/
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#include <linux/if_ether.h>
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/**
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* enum tveeprom_audio_processor - Specifies the type of audio processor
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* used on a Hauppauge device.
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*
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* @TVEEPROM_AUDPROC_NONE: No audio processor present
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* @TVEEPROM_AUDPROC_INTERNAL: The audio processor is internal to the
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* video processor
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* @TVEEPROM_AUDPROC_MSP: The audio processor is a MSPXXXX device
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* @TVEEPROM_AUDPROC_OTHER: The audio processor is another device
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*/
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enum tveeprom_audio_processor {
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TVEEPROM_AUDPROC_NONE,
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TVEEPROM_AUDPROC_INTERNAL,
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TVEEPROM_AUDPROC_MSP,
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TVEEPROM_AUDPROC_OTHER,
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};
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/**
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* struct tveeprom - Contains the fields parsed from Hauppauge eeproms
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*
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* @has_radio: 1 if the device has radio; 0 otherwise.
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* @has_ir: If has_ir == 0, then it is unknown what the IR
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* capabilities are. Otherwise:
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* bit 0) 1 (= IR capabilities are known);
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* bit 1) IR receiver present;
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* bit 2) IR transmitter (blaster) present.
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* @has_MAC_address: 0: no MAC, 1: MAC present, 2: unknown.
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* @tuner_type: type of the tuner (TUNER_*, as defined at
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* include/media/tuner.h).
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* @tuner_formats: Supported analog TV standards (V4L2_STD_*).
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* @tuner_hauppauge_model: Hauppauge's code for the device model number.
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* @tuner2_type: type of the second tuner (TUNER_*, as defined
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* at include/media/tuner.h).
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* @tuner2_formats: Tuner 2 supported analog TV standards
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* (V4L2_STD_*).
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* @tuner2_hauppauge_model: tuner 2 Hauppauge's code for the device model
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* number.
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* @audio_processor: analog audio decoder, as defined by enum
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* tveeprom_audio_processor.
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* @decoder_processor: Hauppauge's code for the decoder chipset.
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* Unused by the drivers, as they probe the
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* decoder based on the PCI or USB ID.
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* @model: Hauppauge's model number
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* @revision: Card revision number
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* @serial_number: Card's serial number
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* @rev_str: Card revision converted to number
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* @MAC_address: MAC address for the network interface
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*/
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struct tveeprom {
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u32 has_radio;
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u32 has_ir;
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u32 has_MAC_address;
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u32 tuner_type;
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u32 tuner_formats;
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u32 tuner_hauppauge_model;
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u32 tuner2_type;
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u32 tuner2_formats;
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u32 tuner2_hauppauge_model;
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u32 audio_processor;
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u32 decoder_processor;
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u32 model;
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u32 revision;
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u32 serial_number;
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char rev_str[5];
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u8 MAC_address[ETH_ALEN];
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};
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/**
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* tveeprom_hauppauge_analog - Fill struct tveeprom using the contents
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* of the eeprom previously filled at
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* @eeprom_data field.
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*
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* @c: I2C client struct
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* @tvee: Struct to where the eeprom parsed data will be filled;
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* @eeprom_data: Array with the contents of the eeprom_data. It should
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* contain 256 bytes filled with the contents of the
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* eeprom read from the Hauppauge device.
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*/
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void tveeprom_hauppauge_analog(struct i2c_client *c, struct tveeprom *tvee,
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unsigned char *eeprom_data);
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/**
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* tveeprom_read - Reads the contents of the eeprom found at the Hauppauge
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* devices.
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*
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* @c: I2C client struct
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* @eedata: Array where the eeprom content will be stored.
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* @len: Size of @eedata array. If the eeprom content will be latter
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* be parsed by tveeprom_hauppauge_analog(), len should be, at
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* least, 256.
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*/
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int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len);
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