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usb: Added gpio isr support to ft4222

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Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Henry Bruce
2015-07-27 11:09:10 -07:00
committed by Brendan Le Foll
parent 001e291d63
commit 453eefc56a
3 changed files with 43 additions and 8 deletions
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8
src/gpio/gpio.c
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@@ -63,13 +63,14 @@ mraa_gpio_init_internal(mraa_adv_func_t* func_table, int pin)
char bu[MAX_SIZE];
int length;
mraa_gpio_context dev = (mraa_gpio_context) malloc(sizeof(struct _gpio));
mraa_gpio_context dev = (mraa_gpio_context) calloc(1, sizeof(struct _gpio));
if (dev == NULL) {
syslog(LOG_CRIT, "gpio: Failed to allocate memory for context");
return NULL;
}
dev->advance_func = func_table;
dev->pin = pin;
if (IS_FUNC_DEFINED(dev, gpio_init_internal_replace)) {
status = dev->advance_func->gpio_init_internal_replace(pin);
@@ -85,10 +86,8 @@ mraa_gpio_init_internal(mraa_adv_func_t* func_table, int pin)
goto init_internal_cleanup;
}
memset(dev, 0, sizeof(struct _gpio));
dev->value_fp = -1;
dev->isr_value_fp = -1;
dev->pin = pin;
dev->phy_pin = -1;
// then check to make sure the pin is exported.
@@ -214,6 +213,9 @@ static void*
mraa_gpio_interrupt_handler(void* arg)
{
mraa_gpio_context dev = (mraa_gpio_context) arg;
if (IS_FUNC_DEFINED(dev, gpio_interrupt_handler_replace))
return dev->advance_func->gpio_interrupt_handler_replace(dev);
mraa_result_t ret;
// open gpio value with open(3)