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Level-triggered w6300 interrupt, drain until empty, rearm after drain

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This commit is contained in:
Ian Gulliver
2026-04-11 21:51:22 +09:00
parent 8b69917e1d
commit a635aa04e0
3 changed files with 12 additions and 6 deletions
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11
firmware/w6300/w6300.cpp
View File

@@ -77,8 +77,11 @@ void pio_init() {
gpio_init(PIN_INT);
gpio_set_dir(PIN_INT, GPIO_IN);
gpio_pull_up(PIN_INT);
gpio_set_irq_enabled_with_callback(PIN_INT, GPIO_IRQ_EDGE_FALL, true,
[](uint, uint32_t){ irq_pending = true; });
gpio_set_irq_enabled_with_callback(PIN_INT, GPIO_IRQ_LEVEL_LOW, true,
[](uint gpio, uint32_t){
irq_pending = true;
gpio_set_irq_enabled(gpio, GPIO_IRQ_LEVEL_LOW, false);
});
pio_hw_t *pios[2] = {pio0, pio1};
uint pio_index = 1;
@@ -500,6 +503,10 @@ void clear_interrupt(intr_kind intr) {
set_slirclr((uint8_t)((uint32_t)intr >> 16));
}
void rearm_gpio_irq() {
gpio_set_irq_enabled(PIN_INT, GPIO_IRQ_LEVEL_LOW, true);
}
void set_interrupt_mask(intr_kind intr) {
set_imr((uint8_t)intr);
set_simr((uint8_t)((uint16_t)intr >> 8));

1
firmware/w6300/w6300.h
View File

@@ -41,6 +41,7 @@ extern volatile bool irq_pending;
void clear_interrupt(intr_kind intr);
void set_interrupt_mask(intr_kind intr);
void rearm_gpio_irq();
std::expected<socket_id, sock_error> open_socket(socket_id sn, protocol proto, sock_flag flag);
std::expected<uint16_t, sock_error> send(socket_id sn, std::span<const uint8_t> buf);