315 lines
9.3 KiB
C
315 lines
9.3 KiB
C
/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include "maa.h"
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#include "maa_internal.h"
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#include "intel_galileo_rev_d.h"
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#include "gpio.h"
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#include "version.h"
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//static maa_pininfo_t* pindata;
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static maa_board_t* plat = NULL;
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const char *
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maa_get_version()
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{
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return gVERSION;
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}
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#ifdef SWIG
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maa_result_t
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maa_init()
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#else
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maa_result_t __attribute__((constructor))
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maa_init()
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#endif
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{
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/** Once more board definitions have been added,
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* A method for detecting them will need to be devised.
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*/
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if (plat != NULL) {
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return MAA_ERROR_PLATFORM_ALREADY_INITIALISED;
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}
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#ifdef SWIGPYTHON
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// Initialise python threads, this allows use to grab the GIL when we are
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// required to do so
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Py_InitializeEx(0);
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PyEval_InitThreads();
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#endif
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plat = maa_intel_galileo_rev_d();
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return MAA_SUCCESS;
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}
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static maa_result_t
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maa_setup_mux_mapped(maa_pin_t meta)
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{
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int mi;
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for (mi = 0; mi < meta.mux_total; mi++) {
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maa_gpio_context mux_i;
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mux_i = maa_gpio_init_raw(meta.mux[mi].pin);
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if (mux_i == NULL)
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return MAA_ERROR_INVALID_HANDLE;
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if (maa_gpio_dir(mux_i, MAA_GPIO_OUT) != MAA_SUCCESS)
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return MAA_ERROR_INVALID_RESOURCE;
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if (maa_gpio_write(mux_i, meta.mux[mi].value) != MAA_SUCCESS)
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return MAA_ERROR_INVALID_RESOURCE;
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}
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return MAA_SUCCESS;
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}
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unsigned int
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maa_setup_gpio(int pin)
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{
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if (plat == NULL)
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return -1;
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if (pin < 0 || pin > plat->phy_pin_count)
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return -1;
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if(plat->pins[pin].capabilites.gpio != 1)
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return -1;
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if (plat->pins[pin].gpio.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pin].gpio) != MAA_SUCCESS)
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return -1;
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return plat->pins[pin].gpio.pinmap;
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}
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unsigned int
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maa_setup_aio(int aio)
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{
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if (plat == NULL)
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return -3;
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if (aio < 0 || aio > plat->aio_count)
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return -1;
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int pin = aio + plat->gpio_count;
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if (plat->pins[pin].capabilites.aio != 1)
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return -1;
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if (plat->pins[pin].aio.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pin].aio) != MAA_SUCCESS)
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return -1;
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return plat->pins[pin].aio.pinmap;
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}
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unsigned int
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maa_setup_i2c(int bus)
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{
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if (plat == NULL)
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return -3;
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if (plat->i2c_bus_count >! 0) {
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fprintf(stderr, "No i2c buses defined in platform");
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return -1;
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}
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if (bus >= plat->i2c_bus_count) {
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fprintf(stderr, "Above i2c bus count");
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return -1;
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}
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int pos = plat->i2c_bus[bus].sda;
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if (plat->pins[pos].i2c.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pos].i2c) != MAA_SUCCESS)
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return -2;
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pos = plat->i2c_bus[bus].scl;
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if (plat->pins[pos].i2c.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pos].i2c) != MAA_SUCCESS)
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return -2;
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return plat->i2c_bus[bus].bus_id;
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}
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maa_spi_bus_t*
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maa_setup_spi(int bus)
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{
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if (plat == NULL)
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return NULL;
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if (plat->spi_bus_count >! 0) {
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fprintf(stderr, "No spi buses defined in platform");
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return NULL;
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}
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if (bus >= plat->spi_bus_count) {
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fprintf(stderr, "Above spi bus count");
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return NULL;
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}
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int pos = plat->spi_bus[bus].sclk;
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if (plat->pins[pos].spi.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pos].spi) != MAA_SUCCESS)
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return NULL;
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pos = plat->spi_bus[bus].mosi;
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if (plat->pins[pos].spi.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pos].spi) != MAA_SUCCESS)
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return NULL;
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pos = plat->spi_bus[bus].miso;
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if (plat->pins[pos].spi.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pos].spi) != MAA_SUCCESS)
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return NULL;
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maa_spi_bus_t *spi = &(plat->spi_bus[bus]);
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return spi;
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}
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maa_pin_t*
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maa_setup_pwm(int pin)
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{
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if (plat == NULL)
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return NULL;
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if (plat->pins[pin].capabilites.pwm != 1)
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return NULL;
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if (plat->pins[pin].capabilites.gpio == 1) {
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maa_gpio_context mux_i;
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mux_i = maa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
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if (mux_i == NULL)
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return NULL;
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if (maa_gpio_dir(mux_i, MAA_GPIO_OUT) != MAA_SUCCESS)
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return NULL;
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// Current REV D quirk. //TODO GEN 2
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if (maa_gpio_write(mux_i, 1) != MAA_SUCCESS)
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return NULL;
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if (maa_gpio_close(mux_i) != MAA_SUCCESS)
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return NULL;
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}
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if (plat->pins[pin].pwm.mux_total > 0)
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if (maa_setup_mux_mapped(plat->pins[pin].pwm) != MAA_SUCCESS)
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return NULL;
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maa_pin_t *ret;
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ret = (maa_pin_t*) malloc(sizeof(maa_pin_t));
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ret->pinmap = plat->pins[pin].pwm.pinmap;
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ret->parent_id = plat->pins[pin].pwm.parent_id;
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return ret;
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}
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void
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maa_result_print(maa_result_t result)
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{
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switch (result) {
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case MAA_SUCCESS: fprintf(stderr, "MAA: SUCCESS\n");
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break;
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case MAA_ERROR_FEATURE_NOT_IMPLEMENTED:
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fprintf(stderr, "MAA: Feature not implemented.\n");
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break;
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case MAA_ERROR_FEATURE_NOT_SUPPORTED:
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fprintf(stderr, "MAA: Feature not supported by Hardware.\n");
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break;
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case MAA_ERROR_INVALID_VERBOSITY_LEVEL:
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fprintf(stderr, "MAA: Invalid verbosity level.\n");
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break;
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case MAA_ERROR_INVALID_PARAMETER:
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fprintf(stderr, "MAA: Invalid parameter.\n");
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break;
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case MAA_ERROR_INVALID_HANDLE:
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fprintf(stderr, "MAA: Invalid Handle.\n");
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break;
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case MAA_ERROR_NO_RESOURCES:
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fprintf(stderr, "MAA: No resources.\n");
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break;
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case MAA_ERROR_INVALID_RESOURCE:
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fprintf(stderr, "MAA: Invalid resource.\n");
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break;
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case MAA_ERROR_INVALID_QUEUE_TYPE:
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fprintf(stderr, "MAA: Invalid Queue Type.\n");
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break;
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case MAA_ERROR_NO_DATA_AVAILABLE:
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fprintf(stderr, "MAA: No Data available.\n");
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break;
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case MAA_ERROR_INVALID_PLATFORM:
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fprintf(stderr, "MAA: Platform not recognised.\n");
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break;
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case MAA_ERROR_PLATFORM_NOT_INITIALISED:
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fprintf(stderr, "MAA: Platform not initialised.\n");
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break;
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case MAA_ERROR_PLATFORM_ALREADY_INITIALISED:
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fprintf(stderr, "MAA: Platform already initialised.\n");
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break;
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case MAA_ERROR_UNSPECIFIED:
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fprintf(stderr, "MAA: Unspecified Error.\n");
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break;
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default: fprintf(stderr, "MAA: Unrecognised error.\n");
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break;
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}
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}
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maa_boolean_t
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maa_pin_mode_test(int pin, maa_pinmodes_t mode)
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{
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if (plat == NULL) {
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maa_init();
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if (plat == NULL)
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return 0;
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}
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if (pin > plat->phy_pin_count || pin < 0)
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return 0;
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switch(mode) {
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case MAA_PIN_VALID:
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if (plat->pins[pin].capabilites.valid == 1)
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return 1;
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break;
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case MAA_PIN_GPIO:
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if (plat->pins[pin].capabilites.gpio ==1)
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return 1;
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break;
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case MAA_PIN_PWM:
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if (plat->pins[pin].capabilites.pwm ==1)
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return 1;
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break;
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case MAA_PIN_FAST_GPIO:
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if (plat->pins[pin].capabilites.fast_gpio ==1)
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return 1;
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break;
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case MAA_PIN_SPI:
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if (plat->pins[pin].capabilites.spi ==1)
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return 1;
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break;
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case MAA_PIN_I2C:
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if (plat->pins[pin].capabilites.i2c ==1)
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return 1;
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break;
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case MAA_PIN_AIO:
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if (pin < plat->aio_count)
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pin = pin + plat->gpio_count;
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if (plat->pins[pin].capabilites.aio ==1)
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return 1;
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break;
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default: break;
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}
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return 0;
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}
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