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ftdi_ft4222: Added GPIO interrupt support for language bindings.

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- FT4222 GPIO ISR implementation was specific to C/C++ and ignored
  language binding support. This is now fixed via adv_func updates.
- GPIO ISR code has been refactored to reduce i2c traffic when using
  I/O expanders
- Added support for built-in FT4222 GPIO interrupts

Signed-off-by: Henry Bruce <henry.bruce@intel.com>
This commit is contained in:
Henry Bruce
2016-02-04 12:27:51 -08:00
committed by Brendan Le Foll
parent d2fcb88c4b
commit 1fd4ed5736
3 changed files with 141 additions and 86 deletions
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5
include/mraa_adv_func.h
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@@ -41,7 +41,7 @@ typedef struct {
mraa_result_t (*gpio_mode_replace) (mraa_gpio_context dev, mraa_gpio_mode_t mode);
mraa_result_t (*gpio_mode_pre) (mraa_gpio_context dev, mraa_gpio_mode_t mode);
mraa_result_t (*gpio_mode_post) (mraa_gpio_context dev, mraa_gpio_mode_t mode);
mraa_result_t (*gpio_edge_mode_replace) (mraa_gpio_context dev, mraa_gpio_edge_t mode);
mraa_result_t (*gpio_dir_replace) (mraa_gpio_context dev, mraa_gpio_dir_t dir);
@@ -53,7 +53,8 @@ typedef struct {
mraa_result_t (*gpio_write_pre) (mraa_gpio_context dev, int value);
mraa_result_t (*gpio_write_post) (mraa_gpio_context dev, int value);
mraa_result_t (*gpio_mmap_setup) (mraa_gpio_context dev, mraa_boolean_t en);
void* (*gpio_interrupt_handler_replace) (mraa_gpio_context dev);
mraa_result_t (*gpio_interrupt_handler_init_replace) (mraa_gpio_context dev);
mraa_result_t (*gpio_wait_interrupt_replace) (mraa_gpio_context dev);
mraa_result_t (*i2c_init_pre) (unsigned int bus);
mraa_result_t (*i2c_init_bus_replace) (mraa_i2c_context dev);