include/media/tveeprom.h

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