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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /include/media/tveeprom.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/media/tveeprom.h')
-rw-r--r--include/media/tveeprom.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/include/media/tveeprom.h b/include/media/tveeprom.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * tveeprom - Contains structures and functions to work with Hauppauge
+ * eeproms.
+ */
+
+#include <linux/if_ether.h>
+
+/**
+ * enum tveeprom_audio_processor - Specifies the type of audio processor
+ * used on a Hauppauge device.
+ *
+ * @TVEEPROM_AUDPROC_NONE: No audio processor present
+ * @TVEEPROM_AUDPROC_INTERNAL: The audio processor is internal to the
+ * video processor
+ * @TVEEPROM_AUDPROC_MSP: The audio processor is a MSPXXXX device
+ * @TVEEPROM_AUDPROC_OTHER: The audio processor is another device
+ */
+enum tveeprom_audio_processor {
+ TVEEPROM_AUDPROC_NONE,
+ TVEEPROM_AUDPROC_INTERNAL,
+ TVEEPROM_AUDPROC_MSP,
+ TVEEPROM_AUDPROC_OTHER,
+};
+
+/**
+ * struct tveeprom - Contains the fields parsed from Hauppauge eeproms
+ *
+ * @has_radio: 1 if the device has radio; 0 otherwise.
+ *
+ * @has_ir: If has_ir == 0, then it is unknown what the IR
+ * capabilities are. Otherwise:
+ * bit 0) 1 (= IR capabilities are known);
+ * bit 1) IR receiver present;
+ * bit 2) IR transmitter (blaster) present.
+ *
+ * @has_MAC_address: 0: no MAC, 1: MAC present, 2: unknown.
+ * @tuner_type: type of the tuner (TUNER_*, as defined at
+ * include/media/tuner.h).
+ *
+ * @tuner_formats: Supported analog TV standards (V4L2_STD_*).
+ * @tuner_hauppauge_model: Hauppauge's code for the device model number.
+ * @tuner2_type: type of the second tuner (TUNER_*, as defined
+ * at include/media/tuner.h).
+ *
+ * @tuner2_formats: Tuner 2 supported analog TV standards
+ * (V4L2_STD_*).
+ *
+ * @tuner2_hauppauge_model: tuner 2 Hauppauge's code for the device model
+ * number.
+ *
+ * @audio_processor: analog audio decoder, as defined by enum
+ * tveeprom_audio_processor.
+ *
+ * @decoder_processor: Hauppauge's code for the decoder chipset.
+ * Unused by the drivers, as they probe the
+ * decoder based on the PCI or USB ID.
+ *
+ * @model: Hauppauge's model number
+ *
+ * @revision: Card revision number
+ *
+ * @serial_number: Card's serial number
+ *
+ * @rev_str: Card revision converted to number
+ *
+ * @MAC_address: MAC address for the network interface
+ */
+struct tveeprom {
+ u32 has_radio;
+ u32 has_ir;
+ u32 has_MAC_address;
+
+ u32 tuner_type;
+ u32 tuner_formats;
+ u32 tuner_hauppauge_model;
+
+ u32 tuner2_type;
+ u32 tuner2_formats;
+ u32 tuner2_hauppauge_model;
+
+ u32 audio_processor;
+ u32 decoder_processor;
+
+ u32 model;
+ u32 revision;
+ u32 serial_number;
+ char rev_str[5];
+ u8 MAC_address[ETH_ALEN];
+};
+
+/**
+ * tveeprom_hauppauge_analog - Fill struct tveeprom using the contents
+ * of the eeprom previously filled at
+ * @eeprom_data field.
+ *
+ * @tvee: Struct to where the eeprom parsed data will be filled;
+ * @eeprom_data: Array with the contents of the eeprom_data. It should
+ * contain 256 bytes filled with the contents of the
+ * eeprom read from the Hauppauge device.
+ */
+void tveeprom_hauppauge_analog(struct tveeprom *tvee,
+ unsigned char *eeprom_data);
+
+/**
+ * tveeprom_read - Reads the contents of the eeprom found at the Hauppauge
+ * devices.
+ *
+ * @c: I2C client struct
+ * @eedata: Array where the eeprom content will be stored.
+ * @len: Size of @eedata array. If the eeprom content will be latter
+ * be parsed by tveeprom_hauppauge_analog(), len should be, at
+ * least, 256.
+ */
+int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len);