https://developer.mbed.org/users/TheoHavercroft/code/nrf51-sdk/
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Diff: btle/custom/custom_helper.cpp
- Revision:
- 54:e2294c844c83
- Parent:
- 22:c6ee8136847e
- Child:
- 57:2aa01a5008ac
--- a/btle/custom/custom_helper.cpp Fri Jul 25 10:33:52 2014 +0100 +++ b/btle/custom/custom_helper.cpp Thu Aug 28 15:50:59 2014 +0200 @@ -245,3 +245,53 @@ return ERROR_NONE; } + + + +/**************************************************************************/ +/*! + @brief Adds a new descriptor to the custom service, assigning + value, a UUID add-on value, etc. + + @param[in] char_handle + @param[in] p_uuid The 16-bit value to add to the base UUID + for this descriptor (normally >1 + since 1 is typically used by the primary + service). + @param[in] max_length The maximum length of this descriptor + + @returns + @retval ERROR_NONE Everything executed normally +*/ +/**************************************************************************/ +error_t custom_add_in_descriptor(uint16_t char_handle, + ble_uuid_t *p_uuid, + uint8_t *p_data, + uint16_t min_length, + uint16_t max_length, + uint16_t *p_desc_handle) +{ + /* Descriptor metadata */ + ble_gatts_attr_md_t desc_md = {0}; + + desc_md.vloc = BLE_GATTS_VLOC_STACK; + desc_md.vlen = (min_length == max_length) ? 0 : 1; + + /* Make it readable and writable */ + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&desc_md.read_perm); + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&desc_md.write_perm); + + ble_gatts_attr_t attr_desc = {0}; + + attr_desc.p_uuid = p_uuid; + attr_desc.p_attr_md = &desc_md; + attr_desc.init_len = min_length; + attr_desc.max_len = max_length; + attr_desc.p_value = p_data; + + ASSERT_STATUS ( sd_ble_gatts_descriptor_add(char_handle, + &attr_desc, + p_desc_handle)); + + return ERROR_NONE; +}