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GPIO descriptor fixes (#578)

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This commit is contained in:
Ken Van Hoeylandt
2026-07-22 22:43:34 +02:00
committed by GitHub
parent a3fda9ad8f
commit 8b92aa8e5a
116 changed files with 376 additions and 541 deletions
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TactilityKernel/source/drivers/gpio_hog.cpp
+20 -21
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@@ -18,32 +18,31 @@ const DeviceType GPIO_HOG_TYPE { .name = "gpio_hog" };
static error_t start(Device* device) {
const auto* config = GET_CONFIG(device);
auto* descriptor = gpio_descriptor_acquire(config->pin.gpio_controller, config->pin.pin, GPIO_OWNER_HOG);
gpio_flags_t flags = 0;
bool initial_high = false;
switch (config->mode) {
case GPIO_HOG_MODE_OUTPUT_HIGH:
flags = GPIO_FLAG_DIRECTION_OUTPUT;
initial_high = true;
break;
case GPIO_HOG_MODE_OUTPUT_LOW:
flags = GPIO_FLAG_DIRECTION_OUTPUT;
break;
case GPIO_HOG_MODE_INPUT:
flags = GPIO_FLAG_DIRECTION_INPUT;
break;
default:
return ERROR_RESOURCE;
}
auto* descriptor = gpio_descriptor_acquire(config->pin.gpio_controller, config->pin.pin, config->pin.flags | flags, GPIO_OWNER_HOG);
if (descriptor == nullptr) {
LOG_E(TAG, "Failed to acquire GPIO descriptor");
return ERROR_RESOURCE;
}
bool ok;
switch (config->mode) {
case GPIO_HOG_MODE_OUTPUT_HIGH:
ok = gpio_descriptor_set_flags(descriptor, GPIO_FLAG_DIRECTION_OUTPUT) == ERROR_NONE &&
gpio_descriptor_set_level(descriptor, true) == ERROR_NONE;
break;
case GPIO_HOG_MODE_OUTPUT_LOW:
ok = gpio_descriptor_set_flags(descriptor, GPIO_FLAG_DIRECTION_OUTPUT) == ERROR_NONE &&
gpio_descriptor_set_level(descriptor, false) == ERROR_NONE;
break;
case GPIO_HOG_MODE_INPUT:
ok = gpio_descriptor_set_flags(descriptor, GPIO_FLAG_DIRECTION_INPUT) == ERROR_NONE;
break;
default:
ok = false;
break;
}
if (!ok) {
LOG_E(TAG, "Failed to configure hogged pin %u", config->pin.pin);
if (config->mode != GPIO_HOG_MODE_INPUT && gpio_descriptor_set_level(descriptor, initial_high) != ERROR_NONE) {
LOG_E(TAG, "Failed to set initial level to %d", (int)initial_high);
gpio_descriptor_release(descriptor);
return ERROR_RESOURCE;
}