diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/transport/ser_phy/ser_phy_nohci.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/transport/ser_phy/ser_phy_nohci.c | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/transport/ser_phy/ser_phy_nohci.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/transport/ser_phy/ser_phy_nohci.c new file mode 100644 index 0000000..4580086 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/serialization/common/transport/ser_phy/ser_phy_nohci.c @@ -0,0 +1,382 @@ +/** + * Copyright (c) 2014 - 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. + * + */ +/**@file + * + * @defgroup ser_phy_spi_phy_driver_slave ser_phy_nrf51_spi_slave.c + * @{ + * @ingroup ser_phy_spi_phy_driver_slave + * + * @brief SPI_RAW PHY slave driver. + */ + +#include <stddef.h> +#include <string.h> + +#include "app_error.h" +#include "app_util.h" +#include "app_util_platform.h" +#include "app_timer.h" +#include "ser_phy.h" +#include "ser_phy_hci.h" +#include "crc16.h" +#include "nrf_soc.h" + +#include "ser_phy_debug_comm.h" + +static bool m_flag_nohci_init = false; +static bool m_flag_expect_ack; +static bool m_flag_buffer_reqested = false; + +static uint16_t m_rx_packet_length; +static uint8_t * m_p_rx_packet; + +static uint16_t m_rx_pending_packet_length; +static uint8_t * m_p_rx_pending_packet; + +static uint16_t m_rx_allocated_packet_length; +static uint8_t * m_p_rx_allocated_packet; + +static uint8_t * m_p_tx_packet = NULL; +static uint16_t m_tx_packet_length; + +static ser_phy_events_handler_t m_ser_phy_callback = NULL; + +#define PKT_HDR_SIZE 4 /**< Packet header size in number of bytes. */ +#define PKT_CRC_SIZE 2 /**< Packet CRC size in number of bytes. */ + +static void ser_phy_nohci_assert(bool cond) +{ + APP_ERROR_CHECK_BOOL(cond); +} + + +static void ser_phy_event_callback(ser_phy_evt_t event) +{ + if (m_ser_phy_callback) + { + m_ser_phy_callback(event); + } +} + + +static void memory_request_callback(uint16_t size) +{ + ser_phy_evt_t event; + + DEBUG_EVT_HCI_PHY_EVT_BUF_REQUEST(0); + + event.evt_type = SER_PHY_EVT_RX_BUF_REQUEST; + event.evt_params.rx_buf_request.num_of_bytes = size; + ser_phy_event_callback(event); +} + + +static void packet_received_callback(uint8_t * pBuffer, uint16_t size) +{ + ser_phy_evt_t event; + + DEBUG_EVT_HCI_PHY_EVT_RX_PKT_RECEIVED(0); + + event.evt_type = SER_PHY_EVT_RX_PKT_RECEIVED; + event.evt_params.rx_pkt_received.num_of_bytes = size; + event.evt_params.rx_pkt_received.p_buffer = pBuffer; + ser_phy_event_callback(event); +} + + +static void packet_dropped_callback(void) +{ + ser_phy_evt_t event; + + DEBUG_EVT_HCI_PHY_EVT_RX_PKT_DROPPED(0); + + event.evt_type = SER_PHY_EVT_RX_PKT_DROPPED; + ser_phy_event_callback(event); +} + + +static void packet_transmitted_callback(void) +{ + ser_phy_evt_t event; + + DEBUG_EVT_HCI_PHY_EVT_TX_PKT_SENT(0); + + event.evt_type = SER_PHY_EVT_TX_PKT_SENT; + ser_phy_event_callback(event); +} + + +static void hci_slip_event_handler(ser_phy_hci_slip_evt_t * p_event) +{ + if ( p_event->evt_type == SER_PHY_HCI_SLIP_EVT_PKT_SENT ) + { + DEBUG_EVT_SLIP_PACKET_TXED(0); + + if (!m_flag_expect_ack) + { + m_p_tx_packet = NULL; + packet_transmitted_callback(); + } + else + { + ser_phy_nohci_assert(false); // packet was send as a ACK packet, callback should be with ACK_SENT + } + + } + else if ( p_event->evt_type == SER_PHY_HCI_SLIP_EVT_ACK_SENT ) + { + DEBUG_EVT_SLIP_ACK_TXED(0); + + if (m_flag_expect_ack) + { + m_p_tx_packet = NULL; + packet_transmitted_callback(); + } + else + { + ser_phy_nohci_assert(false); // packet was send as a normal packet, callback should be with PKT_SENT + } + + } + else if ( p_event->evt_type == SER_PHY_HCI_SLIP_EVT_PKT_RECEIVED ) + { + CRITICAL_REGION_ENTER(); + + if (m_p_rx_packet == NULL) + { + m_p_rx_packet = p_event->evt_params.received_pkt.p_buffer; + m_rx_packet_length = p_event->evt_params.received_pkt.num_of_bytes; + m_p_rx_allocated_packet = m_p_rx_packet; + m_rx_allocated_packet_length = m_rx_packet_length; + m_flag_buffer_reqested = true; + memory_request_callback(m_rx_allocated_packet_length); + } + else if (m_p_rx_pending_packet == NULL) + { + m_p_rx_pending_packet = p_event->evt_params.received_pkt.p_buffer; + m_rx_pending_packet_length = p_event->evt_params.received_pkt.num_of_bytes; + } + else + { + // both buffers are not released; this is fault + ser_phy_nohci_assert(false); + } + CRITICAL_REGION_EXIT(); + } + else + { + // no other callbacks are expected + ser_phy_nohci_assert(false); + } +} + + +/* ser_phy API function */ +void ser_phy_interrupts_enable(void) +{ + + NVIC_EnableIRQ(UART0_IRQn); + return; +} + + +/* ser_phy API function */ +void ser_phy_interrupts_disable(void) +{ + NVIC_DisableIRQ(UART0_IRQn); + return; +} + + +/* ser_phy API function */ +uint32_t ser_phy_rx_buf_set(uint8_t * p_buffer) +{ + uint32_t status = NRF_SUCCESS; + + if (m_flag_buffer_reqested) + { + m_flag_buffer_reqested = false; + + if (p_buffer) + { + memcpy(p_buffer, m_p_rx_allocated_packet, m_rx_allocated_packet_length); + packet_received_callback(p_buffer, m_rx_allocated_packet_length); + } + else + { + packet_dropped_callback(); + } + + CRITICAL_REGION_ENTER(); + + if (m_p_rx_allocated_packet == m_p_rx_packet && (m_p_rx_pending_packet == NULL)) + { + // packet is copied and there is no pending packet + (void) ser_phy_hci_slip_rx_buf_free(m_p_rx_packet); + m_p_rx_packet = NULL; + m_p_rx_allocated_packet = NULL; + } + else if (m_p_rx_allocated_packet == m_p_rx_packet && (m_p_rx_pending_packet != NULL)) + { + // there is a pending packet - request memory for it + m_p_rx_allocated_packet = m_p_rx_pending_packet; + m_rx_allocated_packet_length = m_rx_pending_packet_length; + m_flag_buffer_reqested = true; + } + else if (m_p_rx_allocated_packet == m_p_rx_pending_packet ) + { + // the pending packet was serviced - release both + m_p_rx_allocated_packet = NULL; + (void) ser_phy_hci_slip_rx_buf_free(m_p_rx_packet); + m_p_rx_packet = NULL; + (void) ser_phy_hci_slip_rx_buf_free(m_p_rx_pending_packet); + m_p_rx_pending_packet = NULL; + } + else + { + // no other calls are expected + ser_phy_nohci_assert(false); + } + CRITICAL_REGION_EXIT(); + + // request memory for a pending + if (m_p_rx_allocated_packet) + { + memory_request_callback(m_rx_allocated_packet_length); + } + } + else + { + status = NRF_ERROR_BUSY; + } + return status; +} + + +/* ser_phy API function */ +uint32_t ser_phy_tx_pkt_send(const uint8_t * p_buffer, uint16_t num_of_bytes) +{ + uint32_t status = NRF_SUCCESS; + uint32_t err_code; + + if ( p_buffer == NULL || num_of_bytes == 0) + { + return NRF_ERROR_NULL; + } + + if ( m_p_tx_packet == NULL) + { + m_tx_packet_length = num_of_bytes; + m_p_tx_packet = (uint8_t *)p_buffer; + + if (m_tx_packet_length <= PKT_HDR_SIZE + PKT_CRC_SIZE) + { + ser_phy_hci_pkt_params_t pkt; // all packets smaller than 6 goes as ACK + + m_flag_expect_ack = true; + pkt.p_buffer = (uint8_t *)m_p_tx_packet; + pkt.num_of_bytes = m_tx_packet_length; + DEBUG_EVT_SLIP_ACK_TX(0); + err_code = ser_phy_hci_slip_tx_pkt_send(&pkt, NULL, NULL); // this will look like ACK for slip + ser_phy_nohci_assert(err_code == NRF_SUCCESS); + } + else + { + ser_phy_hci_pkt_params_t header; // this is fake header - just first 4 bytes + ser_phy_hci_pkt_params_t crc; // this is fake header - just last 2 bytes + ser_phy_hci_pkt_params_t payload; // this is fake payload - all except for header and crc + + m_flag_expect_ack = false; + header.p_buffer = (uint8_t *)m_p_tx_packet; + header.num_of_bytes = PKT_HDR_SIZE; + crc.p_buffer = (uint8_t *)m_p_tx_packet + m_tx_packet_length - PKT_CRC_SIZE; + crc.num_of_bytes = PKT_CRC_SIZE; + payload.p_buffer = (uint8_t *)m_p_tx_packet + PKT_HDR_SIZE; + payload.num_of_bytes = m_tx_packet_length - PKT_HDR_SIZE - PKT_CRC_SIZE; + DEBUG_EVT_SLIP_PACKET_TX(0); + err_code = ser_phy_hci_slip_tx_pkt_send(&header, &payload, &crc); // this will look like normal packet for slip + ser_phy_nohci_assert(err_code == NRF_SUCCESS); + } + } + else + { + status = NRF_ERROR_BUSY; + } + + return status; +} + + +/* ser_phy API function */ +uint32_t ser_phy_open(ser_phy_events_handler_t events_handler) +{ + uint32_t err_code; + + if (m_flag_nohci_init) + { + return NRF_ERROR_INVALID_STATE; + } + + if (events_handler == NULL) + { + return NRF_ERROR_NULL; + } + err_code = ser_phy_hci_slip_open(hci_slip_event_handler); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + m_ser_phy_callback = events_handler; + m_flag_nohci_init = true; + return NRF_SUCCESS; +} + + +/* ser_phy API function */ +void ser_phy_close(void) +{ + m_ser_phy_callback = NULL; + ser_phy_hci_slip_close(); + m_flag_nohci_init = false; +} + + |