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mock: added mraa mock platform infra and GPIO implementation

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Mock platform allows one to use mraa without having any real HW.

This commit makes necessary foundational changes and implements
GPIO functionality as well as adds respective tests.

Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Alex Tereschenko
2016-06-26 17:55:14 +02:00
committed by Brendan Le Foll
parent 593fd0be54
commit bcb6adc551
24 changed files with 827 additions and 8 deletions
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12
src/gpio/gpio.c
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@@ -382,6 +382,10 @@ mraa_gpio_isr(mraa_gpio_context dev, mraa_gpio_edge_t mode, void (*fptr)(void*),
return MRAA_ERROR_INVALID_HANDLE;
}
if (IS_FUNC_DEFINED(dev, gpio_isr_replace)) {
return dev->advance_func->gpio_isr_replace(dev, mode, fptr, args);
}
// we only allow one isr per mraa_gpio_context
if (dev->thread_id != 0) {
return MRAA_ERROR_NO_RESOURCES;
@@ -417,6 +421,10 @@ mraa_gpio_isr_exit(mraa_gpio_context dev)
return MRAA_ERROR_INVALID_HANDLE;
}
if (IS_FUNC_DEFINED(dev, gpio_isr_exit_replace)) {
return dev->advance_func->gpio_isr_exit_replace(dev);
}
// wasting our time, there is no isr to exit from
if (dev->thread_id == 0 && dev->isr_value_fp == -1) {
return ret;
@@ -610,6 +618,10 @@ mraa_gpio_read_dir(mraa_gpio_context dev, mraa_gpio_dir_t *dir)
return MRAA_ERROR_INVALID_HANDLE;
}
if (IS_FUNC_DEFINED(dev, gpio_read_dir_replace)) {
return dev->advance_func->gpio_read_dir_replace(dev, dir);
}
snprintf(filepath, MAX_SIZE, SYSFS_CLASS_GPIO "/gpio%d/direction", dev->pin);
fd = open(filepath, O_RDONLY);
if (fd == -1) {