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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 <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); |