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stm32/modbluetooth_hci: Use a static mp_irq_obj_t for BT HCI UART IRQ. 

So that the IRQ handler does not need to be traced by the GC.
This commit is contained in:
Jim Mussared 2020-08-14 16:35:25 +10:00 committed by Damien George
parent 23109988c2
commit 5ff265a3db
1 changed files with 9 additions and 9 deletions
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18
ports/stm32/modbluetooth_hci.c
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@ -135,6 +135,7 @@ int mp_bluetooth_hci_uart_readchar(void) {
#include "uart.h"
pyb_uart_obj_t mp_bluetooth_hci_uart_obj;
mp_irq_obj_t mp_bluetooth_hci_uart_irq_obj;
static uint8_t hci_uart_rxbuf[512];
@ -163,15 +164,14 @@ int mp_bluetooth_hci_uart_set_baudrate(uint32_t baudrate) {
}
int mp_bluetooth_hci_uart_activate(void) {
// Interrupt on RX chunk received (idle)
// Trigger stack poll when this happens
mp_obj_t uart_irq_fn = mp_load_attr(MP_OBJ_FROM_PTR(&mp_bluetooth_hci_uart_obj), MP_QSTR_irq);
mp_obj_t uargs[] = {
MP_OBJ_FROM_PTR(&mp_uart_interrupt_obj),
MP_OBJ_NEW_SMALL_INT(UART_FLAG_IDLE),
mp_const_true,
};
mp_call_function_n_kw(uart_irq_fn, 3, 0, uargs);
// Add IRQ handler for IDLE (i.e. packet finished).
uart_irq_config(&mp_bluetooth_hci_uart_obj, false);
mp_irq_init(&mp_bluetooth_hci_uart_irq_obj, &uart_irq_methods, MP_OBJ_FROM_PTR(&mp_bluetooth_hci_uart_obj));
mp_bluetooth_hci_uart_obj.mp_irq_obj = &mp_bluetooth_hci_uart_irq_obj;
mp_bluetooth_hci_uart_obj.mp_irq_trigger = UART_FLAG_IDLE;
mp_bluetooth_hci_uart_irq_obj.handler = MP_OBJ_FROM_PTR(&mp_uart_interrupt_obj);
mp_bluetooth_hci_uart_irq_obj.ishard = true;
uart_irq_config(&mp_bluetooth_hci_uart_obj, true);
mp_bluetooth_hci_controller_init();
mp_bluetooth_hci_controller_activate();