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mraa: rename from maa to mraa

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Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2014-06-24 17:24:54 +01:00
parent 79d0da4853
commit 6853997a92
74 changed files with 966 additions and 966 deletions
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421
src/mraa.c Normal file
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/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stddef.h>
#include <stdlib.h>
#include <sched.h>
#include <string.h>
#include "mraa_internal.h"
#include "intel_galileo_rev_d.h"
#include "intel_galileo_rev_g.h"
#include "gpio.h"
#include "version.h"
//static mraa_pininfo_t* pindata;
static mraa_board_t* plat = NULL;
static mraa_platform_t platform_type = MRAA_UNKNOWN_PLATFORM;
const char *
mraa_get_version()
{
return gVERSION;
}
#ifdef SWIG
mraa_result_t
mraa_init()
#else
mraa_result_t __attribute__((constructor))
mraa_init()
#endif
{
/** Once more board definitions have been added,
* A method for detecting them will need to be devised.
*/
if (plat != NULL) {
return MRAA_ERROR_PLATFORM_ALREADY_INITIALISED;
}
#ifdef SWIGPYTHON
// Initialise python threads, this allows use to grab the GIL when we are
// required to do so
Py_InitializeEx(0);
PyEval_InitThreads();
#endif
// detect a galileo gen2 board
char *line = NULL;
// let getline allocate memory for *line
size_t len = 0;
FILE *fh = fopen("/sys/devices/virtual/dmi/id/board_name", "r");
if (fh != NULL) {
if (getline(&line, &len, fh) != -1) {
if (strncmp(line, "GalileoGen2", 10) == 0) {
platform_type = MRAA_INTEL_GALILEO_GEN2;
} else {
platform_type = MRAA_INTEL_GALILEO_GEN1;
}
}
}
free(line);
fclose(fh);
switch(platform_type) {
case MRAA_INTEL_GALILEO_GEN2:
plat = mraa_intel_galileo_gen2();
break;
case MRAA_INTEL_GALILEO_GEN1:
plat = mraa_intel_galileo_rev_d();
break;
default:
plat = mraa_intel_galileo_rev_d();
fprintf(stderr, "Platform not found, initialising MRAA_INTEL_GALILEO_GEN1\n");
}
return MRAA_SUCCESS;
}
int
mraa_set_priority(const unsigned int priority)
{
struct sched_param sched_s;
memset(&sched_s, 0, sizeof(struct sched_param));
if (priority > sched_get_priority_max(SCHED_RR)) {
sched_s.sched_priority = sched_get_priority_max(SCHED_RR);
}
else {
sched_s.sched_priority = priority;
}
return sched_setscheduler(0, SCHED_RR, &sched_s);
}
static mraa_result_t
mraa_setup_mux_mapped(mraa_pin_t meta)
{
int mi;
for (mi = 0; mi < meta.mux_total; mi++) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL)
return MRAA_ERROR_INVALID_HANDLE;
mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
if (mraa_gpio_write(mux_i, meta.mux[mi].value) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
}
return MRAA_SUCCESS;
}
unsigned int
mraa_setup_gpio(int pin)
{
if (plat == NULL)
return -1;
if (pin < 0 || pin > plat->phy_pin_count)
return -1;
if(plat->pins[pin].capabilites.gpio != 1)
return -1;
if (plat->pins[pin].gpio.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pin].gpio) != MRAA_SUCCESS)
return -1;
return plat->pins[pin].gpio.pinmap;
}
unsigned int
mraa_setup_aio(int aio)
{
if (plat == NULL)
return -3;
if (aio < 0 || aio > plat->aio_count)
return -1;
int pin = aio + plat->gpio_count;
if (plat->pins[pin].capabilites.aio != 1)
return -1;
if (plat->pins[pin].aio.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pin].aio) != MRAA_SUCCESS)
return -1;
return plat->pins[pin].aio.pinmap;
}
unsigned int
mraa_setup_i2c(int bus)
{
if (plat == NULL)
return -3;
if (plat->i2c_bus_count >! 0) {
fprintf(stderr, "No i2c buses defined in platform");
return -1;
}
if (bus >= plat->i2c_bus_count) {
fprintf(stderr, "Above i2c bus count");
return -1;
}
int pos = plat->i2c_bus[bus].sda;
if (plat->pins[pos].i2c.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS)
return -2;
pos = plat->i2c_bus[bus].scl;
if (plat->pins[pos].i2c.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS)
return -2;
return plat->i2c_bus[bus].bus_id;
}
mraa_spi_bus_t*
mraa_setup_spi(int bus)
{
if (plat == NULL)
return NULL;
if (plat->spi_bus_count >! 0) {
fprintf(stderr, "No spi buses defined in platform");
return NULL;
}
if (bus >= plat->spi_bus_count) {
fprintf(stderr, "Above spi bus count");
return NULL;
}
int pos = plat->spi_bus[bus].sclk;
if (plat->pins[pos].spi.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
return NULL;
pos = plat->spi_bus[bus].mosi;
if (plat->pins[pos].spi.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
return NULL;
pos = plat->spi_bus[bus].miso;
if (plat->pins[pos].spi.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS)
return NULL;
mraa_spi_bus_t *spi = &(plat->spi_bus[bus]);
return spi;
}
mraa_pin_t*
mraa_setup_pwm(int pin)
{
if (plat == NULL)
return NULL;
if (plat->pins[pin].capabilites.pwm != 1)
return NULL;
if (plat->pins[pin].capabilites.gpio == 1) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
if (mux_i == NULL)
return NULL;
if (mraa_gpio_dir(mux_i, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return NULL;
// Current REV D quirk. //TODO GEN 2
if (mraa_gpio_write(mux_i, 1) != MRAA_SUCCESS)
return NULL;
if (mraa_gpio_close(mux_i) != MRAA_SUCCESS)
return NULL;
}
if (plat->pins[pin].pwm.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pin].pwm) != MRAA_SUCCESS)
return NULL;
mraa_pin_t *ret;
ret = (mraa_pin_t*) malloc(sizeof(mraa_pin_t));
ret->pinmap = plat->pins[pin].pwm.pinmap;
ret->parent_id = plat->pins[pin].pwm.parent_id;
return ret;
}
void
mraa_result_print(mraa_result_t result)
{
switch (result) {
case MRAA_SUCCESS: fprintf(stderr, "MRAA: SUCCESS\n");
break;
case MRAA_ERROR_FEATURE_NOT_IMPLEMENTED:
fprintf(stderr, "MRAA: Feature not implemented.\n");
break;
case MRAA_ERROR_FEATURE_NOT_SUPPORTED:
fprintf(stderr, "MRAA: Feature not supported by Hardware.\n");
break;
case MRAA_ERROR_INVALID_VERBOSITY_LEVEL:
fprintf(stderr, "MRAA: Invalid verbosity level.\n");
break;
case MRAA_ERROR_INVALID_PARAMETER:
fprintf(stderr, "MRAA: Invalid parameter.\n");
break;
case MRAA_ERROR_INVALID_HANDLE:
fprintf(stderr, "MRAA: Invalid Handle.\n");
break;
case MRAA_ERROR_NO_RESOURCES:
fprintf(stderr, "MRAA: No resources.\n");
break;
case MRAA_ERROR_INVALID_RESOURCE:
fprintf(stderr, "MRAA: Invalid resource.\n");
break;
case MRAA_ERROR_INVALID_QUEUE_TYPE:
fprintf(stderr, "MRAA: Invalid Queue Type.\n");
break;
case MRAA_ERROR_NO_DATA_AVAILABLE:
fprintf(stderr, "MRAA: No Data available.\n");
break;
case MRAA_ERROR_INVALID_PLATFORM:
fprintf(stderr, "MRAA: Platform not recognised.\n");
break;
case MRAA_ERROR_PLATFORM_NOT_INITIALISED:
fprintf(stderr, "MRAA: Platform not initialised.\n");
break;
case MRAA_ERROR_PLATFORM_ALREADY_INITIALISED:
fprintf(stderr, "MRAA: Platform already initialised.\n");
break;
case MRAA_ERROR_UNSPECIFIED:
fprintf(stderr, "MRAA: Unspecified Error.\n");
break;
default: fprintf(stderr, "MRAA: Unrecognised error.\n");
break;
}
}
mraa_boolean_t
mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
{
if (plat == NULL) {
mraa_init();
if (plat == NULL)
return 0;
}
if (pin > plat->phy_pin_count || pin < 0)
return 0;
switch(mode) {
case MRAA_PIN_VALID:
if (plat->pins[pin].capabilites.valid == 1)
return 1;
break;
case MRAA_PIN_GPIO:
if (plat->pins[pin].capabilites.gpio ==1)
return 1;
break;
case MRAA_PIN_PWM:
if (plat->pins[pin].capabilites.pwm ==1)
return 1;
break;
case MRAA_PIN_FAST_GPIO:
if (plat->pins[pin].capabilites.fast_gpio ==1)
return 1;
break;
case MRAA_PIN_SPI:
if (plat->pins[pin].capabilites.spi ==1)
return 1;
break;
case MRAA_PIN_I2C:
if (plat->pins[pin].capabilites.i2c ==1)
return 1;
break;
case MRAA_PIN_AIO:
if (pin < plat->aio_count)
pin = pin + plat->gpio_count;
if (plat->pins[pin].capabilites.aio ==1)
return 1;
break;
default: break;
}
return 0;
}
mraa_mmap_pin_t*
mraa_setup_mmap_gpio(int pin)
{
if (plat == NULL)
return NULL;
if (plat->pins[pin].capabilites.fast_gpio != 1)
return NULL;
if (plat->pins[pin].mmap.gpio.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pin].mmap.gpio) != MRAA_SUCCESS)
return NULL;
if (mraa_setup_mux_mapped(plat->pins[pin].mmap.gpio) != MRAA_SUCCESS)
return NULL;
mraa_mmap_pin_t *ret = &(plat->pins[pin].mmap);
return ret;
}
mraa_result_t
mraa_swap_complex_gpio(int pin, int out)
{
if (plat == NULL)
return MRAA_ERROR_INVALID_PLATFORM;
switch (platform_type) {
case MRAA_INTEL_GALILEO_GEN2:
if (plat->pins[pin].gpio.complex_cap.complex_pin != 1)
return MRAA_SUCCESS;
if (plat->pins[pin].gpio.complex_cap.output_en == 1) {
mraa_gpio_context output_e;
output_e = mraa_gpio_init_raw(plat->pins[pin].gpio.output_enable);
if (mraa_gpio_dir(output_e, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
int output_val;
if (plat->pins[pin].gpio.complex_cap.output_en_high == 1)
output_val = out;
else
if (out == 1)
output_val = 0;
else
output_val = 1;
if (mraa_gpio_write(output_e, output_val) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
}
//if (plat->pins[pin].gpio.complex_cap.pullup_en == 1) {
// mraa_gpio_context pullup_e;
// pullup_e = mraa_gpio_init_raw(plat->pins[pin].gpio.pullup_enable);
// if (mraa_gpio_mode(pullup_e, MRAA_GPIO_HIZ) != MRAA_SUCCESS)
// return MRAA_ERROR_INVALID_RESOURCE;
//}
break;
default: return MRAA_SUCCESS;
}
}
mraa_platform_t mraa_get_platform_type()
{
return platform_type;
}