BLE <-> UART only char[8]
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Diff: btle/custom/custom_helper.cpp
- Revision:
- 6:bbb4357dc135
- Parent:
- 0:eff01767de02
- Child:
- 8:2214f1df6a6a
--- a/btle/custom/custom_helper.cpp Fri May 23 11:14:45 2014 +0100 +++ b/btle/custom/custom_helper.cpp Wed May 28 12:55:18 2014 +0100 @@ -20,50 +20,49 @@ /*! @brief Adds the base UUID to the custom service. All UUIDs used by this service are based on this 128-bit UUID. - + @note This UUID needs to be added to the SoftDevice stack before adding the service's primary service via 'sd_ble_gatts_service_add' @param[in] p_uuid_base A pointer to the 128-bit UUID array (8*16) - + @returns The UUID type. A return value of 0 should be considered an error. - + @retval 0x00 BLE_UUID_TYPE_UNKNOWN @retval 0x01 BLE_UUID_TYPE_BLE @retval 0x02 BLE_UUID_TYPE_VENDOR_BEGIN - + @section EXAMPLE @code // Take note that bytes 2/3 are blank since these are used to identify // the primary service and individual characteristics #define CFG_CUSTOM_UUID_BASE "\x6E\x40\x00\x00\xB5\xA3\xF3\x93\xE0\xA9\xE5\x0E\x24\xDC\xCA\x9E" - + uint8_t uuid_type = custom_add_uuid_base(CFG_CUSTOM_UUID_BASE); ASSERT(uuid_type > 0, ERROR_NOT_FOUND); - + // We can now safely add the primary service and any characteristics // for our custom service ... - + @endcode */ /**************************************************************************/ -uint8_t custom_add_uuid_base(uint8_t const * const p_uuid_base) +uint8_t custom_add_uuid_base(uint8_t const *const p_uuid_base) { - ble_uuid128_t base_uuid; - uint8_t uuid_type = 0; + ble_uuid128_t base_uuid; + uint8_t uuid_type = 0; - /* Reverse the bytes since ble_uuid128_t is LSB */ - for(uint8_t i=0; i<16; i++) - { - base_uuid.uuid128[i] = p_uuid_base[15-i]; - } + /* Reverse the bytes since ble_uuid128_t is LSB */ + for (uint8_t i = 0; i<16; i++) { + base_uuid.uuid128[i] = p_uuid_base[15 - i]; + } - ASSERT_INT( ERROR_NONE, sd_ble_uuid_vs_add( &base_uuid, &uuid_type ), 0); + ASSERT_INT( ERROR_NONE, sd_ble_uuid_vs_add( &base_uuid, &uuid_type ), 0); - return uuid_type; + return uuid_type; } /**************************************************************************/ @@ -71,19 +70,19 @@ */ /**************************************************************************/ -error_t custom_decode_uuid_base(uint8_t const * const p_uuid_base, ble_uuid_t * p_uuid) +error_t custom_decode_uuid_base(uint8_t const *const p_uuid_base, + ble_uuid_t *p_uuid) { - uint8_t uuid_base_le[16]; + uint8_t uuid_base_le[16]; - /* Reverse the bytes since ble_uuid128_t is LSB */ - for(uint8_t i=0; i<16; i++) - { - uuid_base_le[i] = p_uuid_base[15-i]; - } + /* Reverse the bytes since ble_uuid128_t is LSB */ + for (uint8_t i = 0; i<16; i++) { + uuid_base_le[i] = p_uuid_base[15 - i]; + } - ASSERT_STATUS( sd_ble_uuid_decode(16, uuid_base_le, p_uuid) ); + ASSERT_STATUS( sd_ble_uuid_decode(16, uuid_base_le, p_uuid)); - return ERROR_NONE; + return ERROR_NONE; } /**************************************************************************/ @@ -100,64 +99,66 @@ defined by ble_gatt_char_props_t @param[in] max_length The maximum length of this characeristic @param[in] p_char_handle - + @returns @retval ERROR_NONE Everything executed normally */ /**************************************************************************/ -error_t custom_add_in_characteristic(uint16_t service_handle, ble_uuid_t* p_uuid, uint8_t properties, - uint8_t *p_data, uint16_t min_length, uint16_t max_length, - ble_gatts_char_handles_t* p_char_handle) +error_t custom_add_in_characteristic(uint16_t service_handle, + ble_uuid_t *p_uuid, + uint8_t properties, + uint8_t *p_data, + uint16_t min_length, + uint16_t max_length, + ble_gatts_char_handles_t *p_char_handle) { - /* Characteristic metadata */ - ble_gatts_attr_md_t cccd_md; - ble_gatt_char_props_t char_props; - - memcpy(&char_props, &properties, 1); + /* Characteristic metadata */ + ble_gatts_attr_md_t cccd_md; + ble_gatt_char_props_t char_props; - if ( char_props.notify || char_props.indicate ) - { - /* Notification requires cccd */ - memclr_( &cccd_md, sizeof(ble_gatts_attr_md_t) ); - cccd_md.vloc = BLE_GATTS_VLOC_STACK; - BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm); - BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm); - } + memcpy(&char_props, &properties, 1); - ble_gatts_char_md_t char_md = { 0 }; + if (char_props.notify || char_props.indicate) { + /* Notification requires cccd */ + memclr_( &cccd_md, sizeof(ble_gatts_attr_md_t)); + cccd_md.vloc = BLE_GATTS_VLOC_STACK; + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm); + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm); + } - char_md.char_props = char_props; - char_md.p_cccd_md = (char_props.notify || char_props.indicate ) ? &cccd_md : NULL; + ble_gatts_char_md_t char_md = {0}; - /* Attribute declaration */ - ble_gatts_attr_md_t attr_md = { 0 }; + char_md.char_props = char_props; + char_md.p_cccd_md = + (char_props.notify || char_props.indicate) ? &cccd_md : NULL; - attr_md.vloc = BLE_GATTS_VLOC_STACK; - attr_md.vlen = (min_length == max_length) ? 0 : 1; + /* Attribute declaration */ + ble_gatts_attr_md_t attr_md = {0}; - if ( char_props.read || char_props.notify || char_props.indicate ) - { - BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm); - } + attr_md.vloc = BLE_GATTS_VLOC_STACK; + attr_md.vlen = (min_length == max_length) ? 0 : 1; - if ( char_props.write ) - { - BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm); - } + if (char_props.read || char_props.notify || char_props.indicate) { + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm); + } + + if (char_props.write) { + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm); + } - ble_gatts_attr_t attr_char_value = { 0 }; + ble_gatts_attr_t attr_char_value = {0}; - attr_char_value.p_uuid = p_uuid; - attr_char_value.p_attr_md = &attr_md; - attr_char_value.init_len = min_length; - attr_char_value.max_len = max_length; - attr_char_value.p_value = p_data; + attr_char_value.p_uuid = p_uuid; + attr_char_value.p_attr_md = &attr_md; + attr_char_value.init_len = min_length; + attr_char_value.max_len = max_length; + attr_char_value.p_value = p_data; - ASSERT_STATUS ( sd_ble_gatts_characteristic_add(service_handle, - &char_md, - &attr_char_value, - p_char_handle) ); + ASSERT_STATUS ( sd_ble_gatts_characteristic_add(service_handle, + &char_md, + &attr_char_value, + p_char_handle)); - return ERROR_NONE; + return ERROR_NONE; }