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.
31 #include "mraa_internal.h"
32 #include "intel_galileo_rev_d.h"
33 #include "intel_galileo_rev_g.h"
34 #include "intel_edison_fab_c.h"
35 #include "intel_de3815.h"
39 mraa_board_t* plat = NULL;
40 static mraa_platform_t platform_type = MRAA_UNKNOWN_PLATFORM;
41 mraa_adv_func_t* advance_func;
50 mraa_set_log_level(int level)
52 if (level <= 7 && level >= 0) {
53 setlogmask(LOG_UPTO(level));
56 return MRAA_ERROR_INVALID_PARAMETER;
59 mraa_result_t __attribute__((constructor))
63 setlogmask(LOG_UPTO(LOG_DEBUG));
65 setlogmask(LOG_UPTO(LOG_NOTICE));
68 openlog("libmraa", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
69 syslog(LOG_DEBUG, "libmraa initialised by user %d", getuid());
72 return MRAA_ERROR_PLATFORM_ALREADY_INITIALISED;
75 // Initialise python threads, this allows use to grab the GIL when we are
80 // detect a galileo gen2 board
82 // let getline allocate memory for *line
84 FILE *fh = fopen("/sys/devices/virtual/dmi/id/board_name", "r");
86 if (getline(&line, &len, fh) != -1) {
87 if (strncmp(line, "GalileoGen2", 10) == 0) {
88 platform_type = MRAA_INTEL_GALILEO_GEN2;
89 } else if (strncmp(line, "BODEGA BAY", 10) == 0) {
90 platform_type = MRAA_INTEL_EDISON_FAB_C;
91 } else if (strncmp(line, "SALT BAY", 7) == 0) {
92 platform_type = MRAA_INTEL_EDISON_FAB_C;
93 } else if (strncmp(line, "DE3815", 6) == 0) {
94 platform_type = MRAA_INTEL_DE3815;
96 platform_type = MRAA_INTEL_GALILEO_GEN1;
103 advance_func = (mraa_adv_func_t*) malloc(sizeof(mraa_adv_func_t));
104 memset(advance_func, 0, sizeof(mraa_adv_func_t));
106 switch(platform_type) {
107 case MRAA_INTEL_GALILEO_GEN2:
108 plat = mraa_intel_galileo_gen2();
110 case MRAA_INTEL_GALILEO_GEN1:
111 plat = mraa_intel_galileo_rev_d();
113 case MRAA_INTEL_EDISON_FAB_C:
114 plat = mraa_intel_edison_fab_c();
116 case MRAA_INTEL_DE3815:
117 plat = mraa_intel_de3815();
120 plat = mraa_intel_galileo_rev_d();
121 syslog(LOG_ERR, "Platform not found, initialising MRAA_INTEL_GALILEO_GEN1");
124 syslog(LOG_NOTICE, "libmraa initialised for platform %d", platform_type);
137 mraa_set_priority(const unsigned int priority)
139 struct sched_param sched_s;
141 memset(&sched_s, 0, sizeof(struct sched_param));
142 if (priority > sched_get_priority_max(SCHED_RR)) {
143 sched_s.sched_priority = sched_get_priority_max(SCHED_RR);
146 sched_s.sched_priority = priority;
149 return sched_setscheduler(0, SCHED_RR, &sched_s);
153 mraa_setup_mux_mapped(mraa_pin_t meta)
156 for (mi = 0; mi < meta.mux_total; mi++) {
157 mraa_gpio_context mux_i;
158 mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
160 return MRAA_ERROR_INVALID_HANDLE;
161 mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
162 if (mraa_gpio_write(mux_i, meta.mux[mi].value) != MRAA_SUCCESS)
163 return MRAA_ERROR_INVALID_RESOURCE;
169 mraa_setup_aio(int aio)
172 return MRAA_PLATFORM_NO_INIT;
174 if (aio < 0 || aio > plat->aio_count)
175 return MRAA_NO_SUCH_IO;
177 int pin = aio + plat->gpio_count;
179 if (plat->pins[pin].capabilites.aio != 1)
180 return MRAA_NO_SUCH_IO;
182 if (plat->pins[pin].aio.mux_total > 0)
183 if (mraa_setup_mux_mapped(plat->pins[pin].aio) != MRAA_SUCCESS)
184 return MRAA_NO_SUCH_IO;
185 return plat->pins[pin].aio.pinmap;
189 mraa_setup_i2c(int* bus)
192 return MRAA_PLATFORM_NO_INIT;
194 if (plat->i2c_bus_count == 0) {
195 syslog(LOG_ERR, "No i2c buses defined in platform");
196 return MRAA_NO_SUCH_IO;
198 if (*bus >= plat->i2c_bus_count) {
199 syslog(LOG_ERR, "Above i2c bus count");
200 return MRAA_NO_SUCH_IO;
203 if (plat->i2c_bus[*bus].bus_id == -1) {
204 syslog(LOG_ERR, "Invalid i2c bus, moving to default i2c bus");
205 *bus = plat->def_i2c_bus;
208 int pos = plat->i2c_bus[*bus].sda;
209 if (plat->pins[pos].i2c.mux_total > 0)
210 if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS)
211 return MRAA_IO_SETUP_FAILURE;
213 pos = plat->i2c_bus[*bus].scl;
214 if (plat->pins[pos].i2c.mux_total > 0)
215 if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS)
216 return MRAA_IO_SETUP_FAILURE;
218 return plat->i2c_bus[*bus].bus_id;
222 mraa_setup_spi(int bus)
227 if (plat->spi_bus_count >! 0) {
228 syslog(LOG_ERR, "No spi buses defined in platform");
231 if (plat->spi_bus_count == 1) {
232 bus = plat->def_spi_bus;
234 if (bus >= plat->spi_bus_count) {
235 syslog(LOG_ERR, "Above spi bus count");
239 int pos = plat->spi_bus[bus].sclk;
240 if (plat->pins[pos].spi.mux_total > 0)
241 if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
244 pos = plat->spi_bus[bus].mosi;
245 if (plat->pins[pos].spi.mux_total > 0)
246 if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
249 pos = plat->spi_bus[bus].miso;
250 if (plat->pins[pos].spi.mux_total > 0)
251 if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
254 pos = plat->spi_bus[bus].cs;
255 if (plat->pins[pos].spi.mux_total > 0)
256 if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
259 pos = plat->spi_bus[bus].cs;
260 if (plat->pins[pos].spi.mux_total > 0)
261 if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
264 mraa_spi_bus_t *spi = &(plat->spi_bus[bus]);
269 mraa_setup_pwm(int pin)
274 if (plat->pins[pin].capabilites.pwm != 1)
277 if (plat->pins[pin].capabilites.gpio == 1) {
278 mraa_gpio_context mux_i;
279 mux_i = mraa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
282 if (mraa_gpio_dir(mux_i, MRAA_GPIO_OUT) != MRAA_SUCCESS)
284 // Current REV D quirk. //TODO GEN 2
285 if (mraa_gpio_write(mux_i, 1) != MRAA_SUCCESS)
287 if (mraa_gpio_close(mux_i) != MRAA_SUCCESS)
291 if (plat->pins[pin].pwm.mux_total > 0)
292 if (mraa_setup_mux_mapped(plat->pins[pin].pwm) != MRAA_SUCCESS)
296 ret = (mraa_pin_t*) malloc(sizeof(mraa_pin_t));
297 ret->pinmap = plat->pins[pin].pwm.pinmap;
298 ret->parent_id = plat->pins[pin].pwm.parent_id;
303 mraa_result_print(mraa_result_t result)
307 fprintf(stdout, "MRAA: SUCCESS\n");
309 case MRAA_ERROR_FEATURE_NOT_IMPLEMENTED:
310 fprintf(stdout, "MRAA: Feature not implemented.\n");
312 case MRAA_ERROR_FEATURE_NOT_SUPPORTED:
313 fprintf(stdout, "MRAA: Feature not supported by Hardware.\n");
315 case MRAA_ERROR_INVALID_VERBOSITY_LEVEL:
316 fprintf(stdout, "MRAA: Invalid verbosity level.\n");
318 case MRAA_ERROR_INVALID_PARAMETER:
319 fprintf(stdout, "MRAA: Invalid parameter.\n");
321 case MRAA_ERROR_INVALID_HANDLE:
322 fprintf(stdout, "MRAA: Invalid Handle.\n");
324 case MRAA_ERROR_NO_RESOURCES:
325 fprintf(stdout, "MRAA: No resources.\n");
327 case MRAA_ERROR_INVALID_RESOURCE:
328 fprintf(stdout, "MRAA: Invalid resource.\n");
330 case MRAA_ERROR_INVALID_QUEUE_TYPE:
331 fprintf(stdout, "MRAA: Invalid Queue Type.\n");
333 case MRAA_ERROR_NO_DATA_AVAILABLE:
334 fprintf(stdout, "MRAA: No Data available.\n");
336 case MRAA_ERROR_INVALID_PLATFORM:
337 fprintf(stdout, "MRAA: Platform not recognised.\n");
339 case MRAA_ERROR_PLATFORM_NOT_INITIALISED:
340 fprintf(stdout, "MRAA: Platform not initialised.\n");
342 case MRAA_ERROR_PLATFORM_ALREADY_INITIALISED:
343 fprintf(stdout, "MRAA: Platform already initialised.\n");
345 case MRAA_ERROR_UNSPECIFIED:
346 fprintf(stdout, "MRAA: Unspecified Error.\n");
349 fprintf(stdout, "MRAA: Unrecognised error.\n");
355 mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
362 if (pin > plat->phy_pin_count || pin < 0)
367 if (plat->pins[pin].capabilites.valid == 1)
371 if (plat->pins[pin].capabilites.gpio ==1)
375 if (plat->pins[pin].capabilites.pwm ==1)
378 case MRAA_PIN_FAST_GPIO:
379 if (plat->pins[pin].capabilites.fast_gpio ==1)
383 if (plat->pins[pin].capabilites.spi ==1)
387 if (plat->pins[pin].capabilites.i2c ==1)
391 if (pin < plat->aio_count)
392 pin = pin + plat->gpio_count;
393 if (plat->pins[pin].capabilites.aio ==1)
402 mraa_setup_mmap_gpio(int pin)
407 if (plat->pins[pin].capabilites.fast_gpio != 1)
410 if (plat->pins[pin].mmap.gpio.mux_total > 0)
411 if (mraa_setup_mux_mapped(plat->pins[pin].mmap.gpio) != MRAA_SUCCESS)
414 if (mraa_setup_mux_mapped(plat->pins[pin].mmap.gpio) != MRAA_SUCCESS)
416 mraa_mmap_pin_t *ret = &(plat->pins[pin].mmap);
420 mraa_platform_t mraa_get_platform_type()
422 return platform_type;
431 if (plat->aio_count == 0)
434 return plat->adc_raw;
438 mraa_adc_supported_bits()
443 if (plat->aio_count == 0)
446 return plat->adc_supported;
450 mraa_setup_uart(int index)
453 return MRAA_ERROR_PLATFORM_NOT_INITIALISED;
455 if (plat->uart_dev_count == 0)
456 return MRAA_ERROR_FEATURE_NOT_SUPPORTED;
458 if (plat->uart_dev_count <= index)
459 return MRAA_ERROR_NO_RESOURCES;
461 int pos = plat->uart_dev[index].rx;
463 if (plat->pins[pos].uart.mux_total > 0)
464 if (mraa_setup_mux_mapped(plat->pins[pos].uart) != MRAA_SUCCESS)
465 return MRAA_ERROR_INVALID_RESOURCE;
469 pos = plat->uart_dev[index].tx;
470 if (plat->pins[pos].uart.mux_total > 0)
471 if (mraa_setup_mux_mapped(plat->pins[pos].uart) != MRAA_SUCCESS)
472 return MRAA_ERROR_INVALID_RESOURCE;