utils.cpp

00001 /***************************************************************************
00002 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
00003 *
00004 * Permission is hereby granted, free of charge, to any person obtaining a
00005 * copy of this software and associated documentation files (the "Software"),
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00009 * Software is furnished to do so, subject to the following conditions:
00010 *
00011 * The above copyright notice and this permission notice shall be included
00012 * in all copies or substantial portions of the Software.
00013 *
00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00015 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00017 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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00019 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00020 * OTHER DEALINGS IN THE SOFTWARE.
00021 *
00022 * Except as contained in this notice, the name of Maxim Integrated
00023 * Products, Inc. shall not be used except as stated in the Maxim Integrated
00024 * Products, Inc. Branding Policy.
00025 *
00026 * The mere transfer of this software does not imply any licenses
00027 * of trade secrets, proprietary technology, copyrights, patents,
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00031 ****************************************************************************
00032 */
00033 
00034 #include "utils.h"
00035 #include <ctype.h>
00036 
00037 /*
00038  * @brief Parse DeviceStudio get_reg command 
00039  * @details format is "get_reg <type> <addr>"
00040  *
00041  * @return 0 on success, -1 on failure
00042  */
00043 int parse_get_reg_cmd(const char* str, const char* dev_type, uint8_t* addr)
00044 {
00045     const char* num_start = str + strlen("get_reg") + strlen(dev_type) + 2;
00046     unsigned int addr32;
00047 
00048     int num_found = sscanf(num_start, "%x", &addr32);
00049     if (num_found == 1) {
00050         *addr = (uint8_t)addr32;
00051         return 0;
00052     } else {
00053         return -1;
00054     }
00055 }
00056 
00057 /*
00058  * @brief Parse DeviceStudio set_reg command 
00059  * @details format is "set_reg <type> <addr> <val>"
00060  *
00061  * @return 0 on success, -1 on failure
00062  */
00063 int parse_set_reg_cmd(const char* str, const char* dev_type, uint8_t* addr, uint8_t* val)
00064 {
00065     const char* num_start = str + strlen("set_reg") + strlen(dev_type) + 2;
00066     unsigned int addr32, val32;
00067 
00068     int num_found = sscanf(num_start, "%x %x", &addr32, &val32);
00069     if (num_found == 2) {
00070         *addr = (uint8_t)addr32;
00071         *val = (uint8_t)val32;
00072         return 0;
00073     } else {
00074         return -1;
00075     }
00076 }
00077 int parse_set_reg_cmd(const char* str, const char* dev_type, uint8_t* addr, uint16_t* val)
00078 {
00079     const char* num_start = str + strlen("set_reg") + strlen(dev_type) + 2;
00080     unsigned int addr32, val32;
00081 
00082     int num_found = sscanf(num_start, "%x %x", &addr32, &val32);
00083     if (num_found == 2) {
00084         *addr = (uint8_t)addr32;
00085         *val = (uint8_t)val32;
00086         return 0;
00087     } else {
00088         return -1;
00089     }
00090 }
00091 int parse_set_reg_cmd(const char* str, const char* dev_type, uint8_t* addr, uint32_t* val)
00092 {
00093     const char* num_start = str + strlen("set_reg") + strlen(dev_type) + 2;
00094     unsigned int addr32, val32;
00095 
00096     int num_found = sscanf(num_start, "%x %x", &addr32, &val32);
00097     if (num_found == 2) {
00098         *addr = (uint8_t)addr32;
00099         *val = (uint8_t)val32;
00100         return 0;
00101     } else {
00102         return -1;
00103     }
00104 }