SPITester.cpp

00001 /*
00002  * Copyright (c) 2019, Arm Limited and affiliates.
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "SPITester.h"
00019 #include "fpga_config.h"
00020 
00021 uint16_t SPITester::get_transfer_count(uint32_t addr_transfers, uint32_t size_transfers)
00022 {
00023     uint16_t transfers = 0;
00024     MBED_ASSERT(sizeof(transfers) == size_transfers);
00025     read(addr_transfers, (uint8_t *)&transfers, sizeof(transfers));
00026     return transfers;
00027 }
00028 
00029 uint32_t SPITester::get_receive_checksum(uint32_t addr_checksum, uint32_t size_checksum)
00030 {
00031     uint32_t checksum = 0;
00032     MBED_ASSERT(sizeof(checksum) == size_checksum);
00033     read(addr_checksum, (uint8_t *)&checksum, sizeof(checksum));
00034     return checksum;
00035 }
00036 
00037 void SPITester::set_mode(SPITester::SpiMode mode, uint32_t addr_spi_ctrl, uint32_t size_spi_ctrl, uint32_t offset_clk_mode, uint32_t size_clk_mode)
00038 {
00039     uint32_t spi_ctrl = 0;
00040     read(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00041     spi_ctrl &= ~(((1  <<  size_clk_mode) - 1) << offset_clk_mode);
00042     spi_ctrl |= (mode  <<  offset_clk_mode);
00043     write(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00044 }
00045 
00046 void SPITester::set_bit_order(SPITester::SpiBitOrder bit_order, uint32_t addr_spi_ctrl, uint32_t size_spi_ctrl, uint32_t offset_bit_order, uint32_t size_bit_order)
00047 {
00048     uint32_t spi_ctrl = 0;
00049     read(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00050     spi_ctrl &= ~(((1  <<  size_bit_order) - 1) << offset_bit_order);
00051     spi_ctrl |= (bit_order  <<  offset_bit_order);
00052     write(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00053 }
00054 
00055 void SPITester::set_sym_size(uint32_t sym_size, uint32_t addr_spi_ctrl, uint32_t size_spi_ctrl, uint32_t offset_sym_size, uint32_t size_sym_size)
00056 {
00057     uint32_t spi_ctrl = 0;
00058     read(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00059     spi_ctrl &= ~(((1  <<  size_sym_size) - 1) << offset_sym_size) ;
00060     spi_ctrl |= (sym_size  <<  offset_sym_size);
00061     write(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00062 }
00063 
00064 void SPITester::set_duplex_mode(SPITester::SpiDuplex duplex, uint32_t addr_spi_ctrl, uint32_t size_spi_ctrl, uint32_t offset_duplex, uint32_t size_duplex)
00065 {
00066     uint32_t spi_ctrl = 0;
00067     read(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00068     spi_ctrl &= ~(((1  <<  size_duplex) - 1) << offset_duplex);
00069     spi_ctrl |= (duplex  <<  offset_duplex);
00070     write(addr_spi_ctrl, (uint8_t *)&spi_ctrl, size_spi_ctrl);
00071 }
00072 
00073 void SPITester::set_hd_tx_rx_cnt(uint16_t tx_cnt, uint16_t rx_cnt, uint32_t addr_hd_rx_cnt, uint32_t size_hd_rx_cnt, uint32_t addr_hd_tx_cnt, uint32_t size_hd_tx_cnt)
00074 {
00075     write(addr_hd_rx_cnt, (uint8_t *)&rx_cnt, size_hd_rx_cnt);
00076     write(addr_hd_tx_cnt, (uint8_t *)&tx_cnt, size_hd_tx_cnt);
00077 }