Hi everyone,
we're working with the latest RTEMS in the Beaglebone and we're using the
GPIO api. We've added the code for configuring the pullup/pulldown resistor
in the Beaglebone. Could anyone give it a shoot?
--
<http://www.tallertechnologies.com>
Federico Garcia Cruz
Software Engineer
San Lorenzo 47, 3rd Floor, Office 5
Córdoba, Argentina
Phone: +54 351 4217888 / +54 351 4218211
<http://www.linkedin.com/company/taller-technologies>
<https://www.facebook.com/tallertechnologies>
diff --git a/c/src/lib/libbsp/arm/beagle/gpio/bbb-gpio.c b/c/src/lib/libbsp/arm/beagle/gpio/bbb-gpio.c
index bd26051..4dede50 100644
--- a/c/src/lib/libbsp/arm/beagle/gpio/bbb-gpio.c
+++ b/c/src/lib/libbsp/arm/beagle/gpio/bbb-gpio.c
@@ -269,8 +269,17 @@ rtems_status_code rtems_gpio_bsp_set_resistor_mode(
uint32_t pin,
rtems_gpio_pull_mode mode
) {
- /* TODO: Add support for setting up resistor moode */
- return RTEMS_NOT_DEFINED;
+
+ if (mode == PULL_UP) {
+ mmio_set(bbb_conf_reg(bank, pin), BBB_PU_EN);
+ mmio_clear(bbb_conf_reg(bank, pin), BBB_PUDEN);
+ } else if (mode == PULL_DOWN) {
+ mmio_clear(bbb_conf_reg(bank, pin), BBB_PU_EN);
+ mmio_clear(bbb_conf_reg(bank, pin), BBB_PUDEN);
+ } else {
+ mmio_set(bbb_conf_reg(bank, pin), BBB_PUDEN);
+ }
+ return RTEMS_SUCCESSFUL;
}
rtems_vector_number rtems_gpio_bsp_get_vector(uint32_t bank)
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