TLV Application Functions

APP_TLV API Brief

Application	Brief
`app_tlv_get_data()`	used TLV data format get data from flash
`app_tlv_check_data_chip_magic()`	check chip magic data from flash to identify tlv data valid or not
`app_tlv_read_flash_data()`	Read app_env data partition from flash

APP_TLV API Reference

Header File

common/app_env/app_tlv.h

Functions

void app_tlv_get_data(uint8_t *pos, uint8_t encrypt)

app_tlv_get_data brief description

execute read flash data with the specified position

参数:

pos – [in] start address for reading flash data
encrypt – [in] enable encrypt or not

返回:

N/A

uint32_t app_tlv_check_data_chip_magic(uint8_t *p_chip_magic, uint8_t encrypt)

app_tlv_check_data_chip_magic brief description

compare flash data header with magic words. If the results are the same, data is valid

参数:

p_chip_magic – [in] data buffer for magic words
encrypt – [in] enable encrypt or not

返回值:

0 – success
other – fail

返回:

result

void app_tlv_read_flash_data(uint8_t encrypt, uint8_t *p_dst, uint32_t flash_addr, uint32_t read_len)

app_tlv_read_flash_data brief description

get the specified data form flash with starting address and length

参数:

encrypt – [in] enable encrypt or not @APP_ENV_FLASH_ENCRYPT
p_dst – [out] data buffer for read from flash
flash_addr – [in] starting address
read_len – [in] read len

返回:

N/A

Structures

struct TLV_TAG

TLV tag data struct definition.

Public Members

uint16_t type: TLV type @TLV_TYPE

uint16_t len: len of value

uint8_t value[]: pointer for TLV data buffer

Enumerations

enum TLV_TYPE

TLV tag value definition.

Values:

enumerator TLV_TYPE_CALI_END

enumerator TLV_TYPE_CALI_DC_OFFSET_DIFF_DISPGA

enumerator TLV_TYPE_CALI_DC_OFFSET_SNGL_DISPGA

enumerator TLV_TYPE_CALI_DC_OFFSET_DIFF_ENPGA

enumerator TLV_TYPE_CALI_DC_OFFSET_SNGL_ENPGA

enumerator TLV_TYPE_CALI_SARADC

enumerator TLV_TYPE_CALI_VOLTAGE

enumerator TLV_TYPE_CALI_CHARGE

enumerator TLV_TYPE_CALI_TEMPR

enumerator TLV_TYPE_CALI_ANC_PARAM

enumerator TLV_TYPE_CALI_ANC_COEFS

enumerator TLV_TYPE_CFG_TOTAL

enumerator TLV_TYPE_CFG_BT_NAME

enumerator TLV_TYPE_CFG_BT_ADDR

enumerator TLV_TYPE_CFG_SYS_PARA

enumerator TLV_TYPE_CFG_HFP_FEQ

enumerator TLV_TYPE_FACT_BT_NAME

enumerator TLV_TYPE_FACT_BT_ADDR

enumerator TLV_TYPE_BASE_INFO

enumerator TLV_TYPE_CALI_END2

enum TLV_SECTOR

TLV sector index definition.

Values:

enumerator TLV_SECTOR_ENVCFG

enumerator TLV_SECTOR_ENVDATA

enumerator TLV_SECTOR_ENVCALI

enumerator TLV_SECTOR_ENVEND