Another attempt at fixing the timer

Author: kdschlosser

ext_mod/lcd_bus/esp32_include/rgb_bus.h

@@ -33,11 +33,6 @@
         #include "py/obj.h"
         #include "py/objarray.h"
 
-
-    #if CONFIG_IDF_TARGET_ESP32S3
-        #define RGB_LCD_BUS_NEEDS_SEPARATE_RESTART_LINK 1
-    #endif
-
         typedef struct {
             esp_lcd_panel_t base;  // Base class of generic lcd panel
             int panel_id;          // LCD panel ID
@@ -52,9 +47,9 @@
             esp_pm_lock_handle_t pm_lock; // Power management lock
             size_t num_dma_nodes;  // Number of DMA descriptors that used to carry the frame buffer
             gdma_channel_handle_t dma_chan; // DMA channel handle
-            gdma_link_list_handle_t dma_fb_links[RGB_LCD_PANEL_MAX_FB_NUM]; // DMA link lists for multiple frame buffers
+            gdma_link_list_handle_t dma_fb_links[3]; // DMA link lists for multiple frame buffers
             gdma_link_list_handle_t dma_bb_link; // DMA link list for bounce buffer
-        #if RGB_LCD_BUS_NEEDS_SEPARATE_RESTART_LINK
+        #if CONFIG_IDF_TARGET_ESP32S3
             gdma_link_list_handle_t dma_restart_link; // DMA link list for restarting the DMA
         #endif
             uint8_t *fbs[3]; // Frame buffers

micropy_updates/esp32/machine_timer.c

@@ -131,40 +131,7 @@ static void machine_timer_isr(void *self_in)
 {
     machine_timer_obj_t *self = self_in;
 
-    volatile uint32_t sp = (uint32_t)esp_cpu_get_sp();
-
-    void *old_state = mp_thread_get_state();
-
-    mp_state_thread_t ts;
-    mp_thread_set_state(&ts);
-    mp_stack_set_top((void*)sp);
-    mp_stack_set_limit(CONFIG_FREERTOS_IDLE_TASK_STACKSIZE - 1024);
-    mp_locals_set(mp_state_ctx.thread.dict_locals);
-    mp_globals_set(mp_state_ctx.thread.dict_globals);
-
-    mp_sched_lock();
-    gc_lock();
-
-    nlr_buf_t nlr;
-    if (nlr_push(&nlr) == 0) {
-        mp_obj_t args[1];
-        args[0] = MP_OBJ_FROM_PTR(self);
-
-        mp_call_function_n_kw(self->callback, 1, 0, args);
-        nlr_pop();
-    } else {
-        ets_printf("Uncaught exception in IRQ callback handler!\n");
-        mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
-    }
-
-    if (self->repeat) {
-        self->period_time = esp_timer_get_time();
-    }
-
-    gc_unlock();
-    mp_sched_unlock();
-
-    mp_thread_set_state(old_state);
+    mp_sched_schedule(self->callback, self);
     mp_hal_wake_main_task_from_isr();
 }