/* * Copyright (c) 2019-2023 Beijing Hanwei Innovation Technology Ltd. Co. and * its subsidiaries and affiliates (collectly called MKSEMI). * * 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 an MKSEMI * 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 MKSEMI 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 * MKSEMI 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 MKSEMI "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 MKSEMI 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 "se_common.h" #include "mk_gpio.h" #include "mk_spi.h" #include "mk_common.h" #include "mk_trace.h" #include "phdriver.h" #ifndef SE_SPI_PORT #define SE_SPI_PORT SPI_ID0 #endif #ifndef SE_SPI_CS #define SE_SPI_CS IO_PIN_14 #endif /******************************************************************************* * @Function phdriver_open * @Description Open physical interface, SPI or I2C. * @Parameters * @Returns *******************************************************************************/ int phdriver_open(void) { struct SPI_CFG_T usr_spi_cfg = { .bit_rate = 10000000, .data_bits = 8, .slave = 0, .clk_phase = 0, .clk_polarity = 0, .ti_mode = 0, .dma_rx = false, .dma_tx = false, .int_rx = false, .int_tx = false, }; spi_open(SE_SPI_PORT, &usr_spi_cfg); gpio_pin_set_dir(SE_SPI_CS, GPIO_DIR_OUT, 1); return 0; } /******************************************************************************* * @Function phdriver_read * @Description Reads bytes_to_read bytes from the physical interface, SPI or I2C. * @Parameters rx_buf - Buffer to store received data. * bytes_to_read - Expected number of bytes to be read. * @Returns The amount of bytes read from the slave, -1 if something failed. *******************************************************************************/ int phdriver_read(uint8_t *rx_buf, uint16_t bytes_to_read) { int ret; gpio_pin_clr(SE_SPI_CS); ret = spi_receive(SE_SPI_PORT, rx_buf, bytes_to_read, NULL); gpio_pin_set(SE_SPI_CS); #if 0 LOG_INFO(TRACE_MODULE_SE, "[RD][%u]", bytes_to_read); for (uint16_t i = 0; i < bytes_to_read; i++) { LOG_INFO(TRACE_MODULE_SE|TRACE_NO_OPTION, " %02x", rx_buf[i]); } LOG_INFO(TRACE_MODULE_SE|TRACE_NO_OPTION, "\r\n"); #endif if (ret == DRV_OK) { return bytes_to_read; } else { return -1; } } /******************************************************************************* * @Function phdriver_write * @Description Write tx_len bytes to the physical interface, SPI or I2C. * @Parameters tx_buf - Buffer to transmit. * tx_len - Number of bytes to be written. * @Returns The amount of bytes written to the slave, -1 if something failed. *******************************************************************************/ int phdriver_write(uint8_t *tx_buf, uint16_t tx_len) { int ret; while (spi_is_busy(SE_SPI_PORT)) { } #if 0 LOG_INFO(TRACE_MODULE_SE, "[WR][%u]", tx_len); for (uint16_t i = 0; i < tx_len; i++) { LOG_INFO(TRACE_MODULE_SE|TRACE_NO_OPTION, " %02x", tx_buf[i]); } LOG_INFO(TRACE_MODULE_SE|TRACE_NO_OPTION, "\r\n"); #endif gpio_pin_clr(SE_SPI_CS); ret = spi_send(SE_SPI_PORT, tx_buf, tx_len, NULL); gpio_pin_set(SE_SPI_CS); if (ret == DRV_OK) { return tx_len; } else { return -1; } }