2 * Author: Henry Bruce <henry.bruce@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 #include "mraa_internal_types.h"
33 extern mraa_board_t* plat;
38 fprintf(stdout, "Version %s on %s", mraa_get_version(), mraa_get_platform_name());
39 if (plat != NULL && plat->sub_platform != NULL)
40 fprintf(stdout, " with %s", plat->sub_platform->platform_name);
41 fprintf(stdout, "\n");
47 fprintf(stdout, "version Get mraa version and board name\n");
48 fprintf(stdout, "list List available busses\n");
49 fprintf(stdout, "detect bus List detected devices on specified bus\n");
50 fprintf(stdout, "get bus device reg Get value from specified device register\n");
51 fprintf(stdout, "set bus device reg value Set specified device register to value\n");
57 fprintf(stdout, "Invalid command, options are:\n");
62 print_bus(mraa_board_t* board)
65 for (i = 0; i < board->i2c_bus_count; ++i) {
67 switch (board->platform_type) {
68 case MRAA_INTEL_GALILEO_GEN1:
69 case MRAA_INTEL_GALILEO_GEN2:
70 case MRAA_INTEL_EDISON_FAB_C:
71 case MRAA_INTEL_DE3815:
72 case MRAA_INTEL_MINNOWBOARD_MAX:
73 case MRAA_RASPBERRY_PI:
79 case MRAA_FTDI_FT4222:
81 bus = mraa_get_sub_platform_id(i);
87 int id = board->i2c_bus[bus].bus_id;
88 fprintf(stdout, "Bus %3d: id=%02d type=%s ", bus, id, busType);
89 if (i == board->def_i2c_bus)
90 fprintf(stdout, " default");
92 fprintf(stdout, " disabled");
94 fprintf(stdout, "\n");
102 if (mraa_has_sub_platform())
103 print_bus(plat->sub_platform);
107 i2c_get(int bus, uint8_t device_address, uint8_t register_address, uint8_t* data)
109 mraa_result_t status = MRAA_SUCCESS;
110 mraa_i2c_context i2c = mraa_i2c_init(bus);
112 return MRAA_ERROR_NO_RESOURCES;
114 status = mraa_i2c_address(i2c, device_address);
115 if (status != MRAA_SUCCESS) {
118 status = mraa_i2c_write_byte(i2c, register_address);
119 if (status != MRAA_SUCCESS) {
122 status = mraa_i2c_read(i2c, data, 1) == 1 ? MRAA_SUCCESS : MRAA_ERROR_UNSPECIFIED;
123 if (status != MRAA_SUCCESS) {
132 i2c_set(int bus, uint8_t device_address, uint8_t register_address, uint8_t data)
134 mraa_result_t status = MRAA_SUCCESS;
135 mraa_i2c_context i2c = mraa_i2c_init(bus);
137 return MRAA_ERROR_NO_RESOURCES;
139 status = mraa_i2c_address(i2c, device_address);
140 if (status != MRAA_SUCCESS) {
141 fprintf(stderr, "Could not set i2c device address\n");
144 status = mraa_i2c_write_byte_data(i2c, data, register_address);
145 if (status != MRAA_SUCCESS) {
146 fprintf(stderr, "Could not write to i2c register. Status = %d\n", status);
155 i2c_detect_devices(int bus)
157 mraa_result_t status = MRAA_SUCCESS;
158 mraa_i2c_context i2c = mraa_i2c_init(bus);
163 for (addr = 0x0; addr < 0x80; ++addr) {
165 if ((addr) % 16 == 0)
166 printf("%02x: ", addr);
167 if (i2c_get(bus, addr, 0, &value) == MRAA_SUCCESS)
168 printf("%02x ", addr);
171 if ((addr + 1) % 16 == 0)
177 process_command(int argc, char** argv)
179 if (strcmp(argv[1], "help") == 0) {
182 } else if (strcmp(argv[1], "version") == 0) {
185 } else if (strcmp(argv[1], "list") == 0) {
188 } else if (strcmp(argv[1], "detect") == 0) {
190 int bus = strtol(argv[2], NULL, 0);
191 i2c_detect_devices(bus);
194 print_command_error();
197 } else if ((strcmp(argv[1], "get") == 0)) {
199 int bus = strtol(argv[2], NULL, 0);
200 uint8_t device_address = strtol(argv[3], NULL, 0);
201 uint8_t register_address = strtol(argv[4], NULL, 0);
202 // fprintf(stdout, "Device %02X, Register = %02X\n", device_address, register_address);
204 if (i2c_get(bus, device_address, register_address, &data) == MRAA_SUCCESS) {
205 fprintf(stdout, "Register %#02X = %#02X\n", register_address, data);
208 fprintf(stdout, "i2c get failed\n");
212 print_command_error();
215 } else if ((strcmp(argv[1], "set") == 0)) {
217 int bus = strtol(argv[2], NULL, 0);
218 uint8_t device_address = strtol(argv[3], NULL, 0);
219 uint8_t register_address = strtol(argv[4], NULL, 0);
220 uint8_t value = strtol(argv[5], NULL, 0);
221 fprintf(stdout, "Device %02X, Register = %02X, Value = %02X\n", device_address,
222 register_address, value);
223 if (i2c_set(bus, device_address, register_address, value) != MRAA_SUCCESS) {
224 fprintf(stdout, "i2c set failed\n");
229 print_command_error();
233 print_command_error();
239 run_interactive_mode()
246 argv[0] = "mraa-i2c";
247 fprintf(stdout, "Command: ");
248 fgets(command, 80, stdin);
249 command[strlen(command) - 1] = 0;
250 if (strcmp(command, "q") == 0)
252 char* str = strtok(command, " ");
253 while (str != NULL) {
254 arg = malloc(strlen(str) + 1);
255 argv[argc++] = strcpy(arg, str);
256 str = strtok(NULL, " ");
258 process_command(argc, argv);
259 for (i = 1; i < argc; ++i)
265 main(int argc, char** argv)
267 mraa_set_log_level(7);
269 run_interactive_mode();
272 return process_command(argc, argv);