1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 /* 4 * tveeprom - Contains structures and functions to work with Hauppauge 5 * eeproms. 6 */ 7 8 #include <uapi/linux/if_ether.h> 9 10 /** 11 * enum tveeprom_audio_processor - Specifies the type of audio processor 12 * used on a Hauppauge device. 13 * 14 * @TVEEPROM_AUDPROC_NONE: No audio processor present 15 * @TVEEPROM_AUDPROC_INTERNAL: The audio processor is internal to the 16 * video processor 17 * @TVEEPROM_AUDPROC_MSP: The audio processor is a MSPXXXX device 18 * @TVEEPROM_AUDPROC_OTHER: The audio processor is another device 19 */ 20 enum tveeprom_audio_processor { 21 TVEEPROM_AUDPROC_NONE, 22 TVEEPROM_AUDPROC_INTERNAL, 23 TVEEPROM_AUDPROC_MSP, 24 TVEEPROM_AUDPROC_OTHER, 25 }; 26 27 /** 28 * struct tveeprom - Contains the fields parsed from Hauppauge eeproms 29 * 30 * @has_radio: 1 if the device has radio; 0 otherwise. 31 * 32 * @has_ir: If has_ir == 0, then it is unknown what the IR 33 * capabilities are. Otherwise: 34 * bit 0) 1 (= IR capabilities are known); 35 * bit 1) IR receiver present; 36 * bit 2) IR transmitter (blaster) present. 37 * 38 * @has_MAC_address: 0: no MAC, 1: MAC present, 2: unknown. 39 * @tuner_type: type of the tuner (TUNER_*, as defined at 40 * include/media/tuner.h). 41 * 42 * @tuner_formats: Supported analog TV standards (V4L2_STD_*). 43 * @tuner_hauppauge_model: Hauppauge's code for the device model number. 44 * @tuner2_type: type of the second tuner (TUNER_*, as defined 45 * at include/media/tuner.h). 46 * 47 * @tuner2_formats: Tuner 2 supported analog TV standards 48 * (V4L2_STD_*). 49 * 50 * @tuner2_hauppauge_model: tuner 2 Hauppauge's code for the device model 51 * number. 52 * 53 * @audio_processor: analog audio decoder, as defined by enum 54 * tveeprom_audio_processor. 55 * 56 * @decoder_processor: Hauppauge's code for the decoder chipset. 57 * Unused by the drivers, as they probe the 58 * decoder based on the PCI or USB ID. 59 * 60 * @model: Hauppauge's model number 61 * 62 * @revision: Card revision number 63 * 64 * @serial_number: Card's serial number 65 * 66 * @rev_str: Card revision converted to number 67 * 68 * @MAC_address: MAC address for the network interface 69 */ 70 struct tveeprom { 71 u32 has_radio; 72 u32 has_ir; 73 u32 has_MAC_address; 74 75 u32 tuner_type; 76 u32 tuner_formats; 77 u32 tuner_hauppauge_model; 78 79 u32 tuner2_type; 80 u32 tuner2_formats; 81 u32 tuner2_hauppauge_model; 82 83 u32 audio_processor; 84 u32 decoder_processor; 85 86 u32 model; 87 u32 revision; 88 u32 serial_number; 89 char rev_str[5]; 90 u8 MAC_address[ETH_ALEN]; 91 }; 92 93 /** 94 * tveeprom_hauppauge_analog - Fill struct tveeprom using the contents 95 * of the eeprom previously filled at 96 * @eeprom_data field. 97 * 98 * @tvee: Struct to where the eeprom parsed data will be filled; 99 * @eeprom_data: Array with the contents of the eeprom_data. It should 100 * contain 256 bytes filled with the contents of the 101 * eeprom read from the Hauppauge device. 102 */ 103 void tveeprom_hauppauge_analog(struct tveeprom *tvee, 104 unsigned char *eeprom_data); 105 106 /** 107 * tveeprom_read - Reads the contents of the eeprom found at the Hauppauge 108 * devices. 109 * 110 * @c: I2C client struct 111 * @eedata: Array where the eeprom content will be stored. 112 * @len: Size of @eedata array. If the eeprom content will be latter 113 * be parsed by tveeprom_hauppauge_analog(), len should be, at 114 * least, 256. 115 */ 116 int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len); 117