2 * Author: Brendan Le Foll <brendan.le.foll@intel.com>
3 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
4 * Copyright (c) 2014 Intel Corporation.
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 #include "mraa_internal.h"
36 mraa_board_t* plat = NULL;
37 static mraa_platform_t platform_type = MRAA_UNKNOWN_PLATFORM;
38 mraa_adv_func_t* advance_func;
47 mraa_set_log_level(int level)
49 if (level <= 7 && level >= 0) {
50 setlogmask(LOG_UPTO(level));
53 return MRAA_ERROR_INVALID_PARAMETER;
56 mraa_result_t __attribute__((constructor))
60 return MRAA_ERROR_PLATFORM_ALREADY_INITIALISED;
63 uid_t proc_euid = geteuid();
64 struct passwd *proc_user = getpwuid(proc_euid);
67 setlogmask(LOG_UPTO(LOG_DEBUG));
69 setlogmask(LOG_UPTO(LOG_NOTICE));
72 openlog("libmraa", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
74 "libmraa version %s initialised by user '%s' with EUID %d",
76 (proc_user != NULL) ? proc_user->pw_name : "<unknown>",
80 // Initialise python threads, this allows use to grab the GIL when we are
85 advance_func = (mraa_adv_func_t*) malloc(sizeof(mraa_adv_func_t));
86 memset(advance_func, 0, sizeof(mraa_adv_func_t));
89 // Use runtime x86 platform detection
90 platform_type = mraa_x86_platform();
92 // Use runtime ARM platform detection
93 platform_type = mraa_arm_platform();
95 #error mraa_ARCH NOTHING
99 printf("mraa: FATAL error, failed to initialise platform\n");
100 return MRAA_ERROR_PLATFORM_NOT_INITIALISED;
104 "libmraa initialised for platform '%s' of type %d",
105 mraa_get_platform_name(),
114 if (plat->pins != NULL) {
123 mraa_set_priority(const unsigned int priority)
125 struct sched_param sched_s;
127 memset(&sched_s, 0, sizeof(struct sched_param));
128 if (priority > sched_get_priority_max(SCHED_RR)) {
129 sched_s.sched_priority = sched_get_priority_max(SCHED_RR);
132 sched_s.sched_priority = priority;
135 return sched_setscheduler(0, SCHED_RR, &sched_s);
139 mraa_setup_mux_mapped(mraa_pin_t meta)
143 for (mi = 0; mi < meta.mux_total; mi++) {
144 mraa_gpio_context mux_i;
145 mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
147 return MRAA_ERROR_INVALID_HANDLE;
149 // this function will sometimes fail, however this is not critical as
150 // long as the write succeeds - Test case galileo gen2 pin2
151 mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
153 if (mraa_gpio_write(mux_i, meta.mux[mi].value) != MRAA_SUCCESS) {
154 mraa_gpio_close(mux_i);
155 return MRAA_ERROR_INVALID_RESOURCE;
157 mraa_gpio_close(mux_i);
164 mraa_result_print(mraa_result_t result)
168 fprintf(stdout, "MRAA: SUCCESS\n");
170 case MRAA_ERROR_FEATURE_NOT_IMPLEMENTED:
171 fprintf(stdout, "MRAA: Feature not implemented.\n");
173 case MRAA_ERROR_FEATURE_NOT_SUPPORTED:
174 fprintf(stdout, "MRAA: Feature not supported by Hardware.\n");
176 case MRAA_ERROR_INVALID_VERBOSITY_LEVEL:
177 fprintf(stdout, "MRAA: Invalid verbosity level.\n");
179 case MRAA_ERROR_INVALID_PARAMETER:
180 fprintf(stdout, "MRAA: Invalid parameter.\n");
182 case MRAA_ERROR_INVALID_HANDLE:
183 fprintf(stdout, "MRAA: Invalid Handle.\n");
185 case MRAA_ERROR_NO_RESOURCES:
186 fprintf(stdout, "MRAA: No resources.\n");
188 case MRAA_ERROR_INVALID_RESOURCE:
189 fprintf(stdout, "MRAA: Invalid resource.\n");
191 case MRAA_ERROR_INVALID_QUEUE_TYPE:
192 fprintf(stdout, "MRAA: Invalid Queue Type.\n");
194 case MRAA_ERROR_NO_DATA_AVAILABLE:
195 fprintf(stdout, "MRAA: No Data available.\n");
197 case MRAA_ERROR_INVALID_PLATFORM:
198 fprintf(stdout, "MRAA: Platform not recognised.\n");
200 case MRAA_ERROR_PLATFORM_NOT_INITIALISED:
201 fprintf(stdout, "MRAA: Platform not initialised.\n");
203 case MRAA_ERROR_PLATFORM_ALREADY_INITIALISED:
204 fprintf(stdout, "MRAA: Platform already initialised.\n");
206 case MRAA_ERROR_UNSPECIFIED:
207 fprintf(stdout, "MRAA: Unspecified Error.\n");
210 fprintf(stdout, "MRAA: Unrecognised error.\n");
216 mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
223 if (pin > (plat->phy_pin_count -1) || pin < 0)
228 if (plat->pins[pin].capabilites.valid == 1)
232 if (plat->pins[pin].capabilites.gpio ==1)
236 if (plat->pins[pin].capabilites.pwm ==1)
239 case MRAA_PIN_FAST_GPIO:
240 if (plat->pins[pin].capabilites.fast_gpio ==1)
244 if (plat->pins[pin].capabilites.spi ==1)
248 if (plat->pins[pin].capabilites.i2c ==1)
252 if (plat->pins[pin].capabilites.aio ==1)
256 if (plat->pins[pin].capabilites.uart == 1)
260 syslog(LOG_NOTICE, "requested pinmode invalid");
266 mraa_platform_t mraa_get_platform_type()
268 return platform_type;
277 if (plat->aio_count == 0)
280 return plat->adc_raw;
284 mraa_adc_supported_bits()
289 if (plat->aio_count == 0)
292 return plat->adc_supported;
296 mraa_get_platform_name()
301 return (char*) plat->platform_name;
310 return plat->phy_pin_count;