diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/serial_dfu/nrf_dfu_serial_uart.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/serial_dfu/nrf_dfu_serial_uart.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/serial_dfu/nrf_dfu_serial_uart.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/serial_dfu/nrf_dfu_serial_uart.c new file mode 100644 index 0000000..3d0b783 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/serial_dfu/nrf_dfu_serial_uart.c @@ -0,0 +1,235 @@ +/** + * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "nrf_dfu_serial.h" + +#include <string.h> +#include "boards.h" +#include "app_util_platform.h" +#include "nrf_dfu_transport.h" +#include "nrf_dfu_req_handler.h" +#include "slip.h" +#include "nrf_balloc.h" +#include "nrf_drv_uart.h" + +#define NRF_LOG_MODULE_NAME nrf_dfu_serial_uart +#include "nrf_log.h" +NRF_LOG_MODULE_REGISTER(); + +/**@file + * + * @defgroup nrf_dfu_serial_uart DFU Serial UART transport + * @ingroup nrf_dfu + * @brief Device Firmware Update (DFU) transport layer using UART. + */ + +#define NRF_SERIAL_OPCODE_SIZE (sizeof(uint8_t)) +#define NRF_UART_MAX_RESPONSE_SIZE_SLIP (2 * NRF_SERIAL_MAX_RESPONSE_SIZE + 1) +#define RX_BUF_SIZE (64) //to get 64bytes payload +#define OPCODE_OFFSET (sizeof(uint32_t) - NRF_SERIAL_OPCODE_SIZE) +#define DATA_OFFSET (OPCODE_OFFSET + NRF_SERIAL_OPCODE_SIZE) +#define UART_SLIP_MTU (2 * (RX_BUF_SIZE + 1) + 1) +#define BALLOC_BUF_SIZE ((CEIL_DIV((RX_BUF_SIZE+OPCODE_SIZE),sizeof(uint32_t))*sizeof(uint32_t))) + +NRF_BALLOC_DEF(m_payload_pool, (UART_SLIP_MTU + 1), NRF_DFU_SERIAL_UART_RX_BUFFERS); + +static nrf_drv_uart_t m_uart = NRF_DRV_UART_INSTANCE(0); +static uint8_t m_rx_byte; + +static nrf_dfu_serial_t m_serial; +static slip_t m_slip; +static uint8_t m_rsp_buf[NRF_UART_MAX_RESPONSE_SIZE_SLIP]; +static bool m_active; + +static nrf_dfu_observer_t m_observer; + +static uint32_t uart_dfu_transport_init(nrf_dfu_observer_t observer); +static uint32_t uart_dfu_transport_close(nrf_dfu_transport_t const * p_exception); + +DFU_TRANSPORT_REGISTER(nrf_dfu_transport_t const uart_dfu_transport) = +{ + .init_func = uart_dfu_transport_init, + .close_func = uart_dfu_transport_close, +}; + +static void payload_free(void * p_buf) +{ + uint8_t * p_buf_root = (uint8_t *)p_buf - DATA_OFFSET; //pointer is shifted to point to data + nrf_balloc_free(&m_payload_pool, p_buf_root); +} + +static ret_code_t rsp_send(uint8_t const * p_data, uint32_t length) +{ + uint32_t slip_len; + (void) slip_encode(m_rsp_buf, (uint8_t *)p_data, length, &slip_len); + + return nrf_drv_uart_tx(&m_uart, m_rsp_buf, slip_len); +} + +static __INLINE void on_rx_complete(nrf_dfu_serial_t * p_transport, uint8_t * p_data, uint8_t len) +{ + ret_code_t ret_code; + + ret_code = slip_decode_add_byte(&m_slip, p_data[0]); + (void) nrf_drv_uart_rx(&m_uart, &m_rx_byte, 1); + + if (ret_code == NRF_SUCCESS) + { + // Activity detected on current transport, close all except active one. + UNUSED_RETURN_VALUE(nrf_dfu_transports_close(&uart_dfu_transport)); + + nrf_dfu_serial_on_packet_received(p_transport, + (uint8_t const *)m_slip.p_buffer, + m_slip.current_index); + + uint8_t * p_rx_buf = nrf_balloc_alloc(&m_payload_pool); + if (p_rx_buf == NULL) + { + NRF_LOG_ERROR("Failed to allocate buffer"); + return; + } + NRF_LOG_INFO("Allocated buffer %x", p_rx_buf); + // reset the slip decoding + m_slip.p_buffer = &p_rx_buf[OPCODE_OFFSET]; + m_slip.current_index = 0; + m_slip.state = SLIP_STATE_DECODING; + } + +} + +static void uart_event_handler(nrf_drv_uart_event_t * p_event, void * p_context) +{ + switch (p_event->type) + { + case NRF_DRV_UART_EVT_RX_DONE: + on_rx_complete((nrf_dfu_serial_t*)p_context, + p_event->data.rxtx.p_data, + p_event->data.rxtx.bytes); + break; + + case NRF_DRV_UART_EVT_ERROR: + APP_ERROR_HANDLER(p_event->data.error.error_mask); + break; + + default: + // No action. + break; + } +} + +static uint32_t uart_dfu_transport_init(nrf_dfu_observer_t observer) +{ + uint32_t err_code = NRF_SUCCESS; + + if (m_active) + { + return err_code; + } + + NRF_LOG_DEBUG("serial_dfu_transport_init()"); + + m_observer = observer; + + err_code = nrf_balloc_init(&m_payload_pool); + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + uint8_t * p_rx_buf = nrf_balloc_alloc(&m_payload_pool); + + m_slip.p_buffer = &p_rx_buf[OPCODE_OFFSET]; + m_slip.current_index = 0; + m_slip.buffer_len = UART_SLIP_MTU; + m_slip.state = SLIP_STATE_DECODING; + + m_serial.rsp_func = rsp_send; + m_serial.payload_free_func = payload_free; + m_serial.mtu = UART_SLIP_MTU; + m_serial.p_rsp_buf = &m_rsp_buf[NRF_UART_MAX_RESPONSE_SIZE_SLIP - + NRF_SERIAL_MAX_RESPONSE_SIZE]; + + nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG; + + uart_config.pseltxd = TX_PIN_NUMBER; + uart_config.pselrxd = RX_PIN_NUMBER; + uart_config.pselcts = CTS_PIN_NUMBER; + uart_config.pselrts = RTS_PIN_NUMBER; + uart_config.hwfc = NRF_DFU_SERIAL_UART_USES_HWFC ? + NRF_UART_HWFC_ENABLED : NRF_UART_HWFC_DISABLED; + uart_config.p_context = &m_serial; + + err_code = nrf_drv_uart_init(&m_uart, &uart_config, uart_event_handler); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Failed initializing uart"); + return err_code; + } + + err_code = nrf_drv_uart_rx(&m_uart, &m_rx_byte, 1); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Failed initializing rx"); + } + + NRF_LOG_DEBUG("serial_dfu_transport_init() completed"); + + m_active = true; + + if (m_observer) + { + m_observer(NRF_DFU_EVT_TRANSPORT_ACTIVATED); + } + + return err_code; +} + + +static uint32_t uart_dfu_transport_close(nrf_dfu_transport_t const * p_exception) +{ + if ((m_active == true) && (p_exception != &uart_dfu_transport)) + { + nrf_drv_uart_uninit(&m_uart); + m_active = false; + } + + return NRF_SUCCESS; +} + |