Starts work on adding LED matrix driver for ESP32

Author: kdschlosser

ext_mod/lcd_bus/esp32_include/led_bus.h

@@ -0,0 +1,115 @@
+
+#ifndef _ESP32_LED_BUS_H_
+    #define _ESP32_LED_BUS_H_
+
+    //local_includes
+    #include "lcd_types.h"
+    #include "../../../micropy_updates/common/mp_spi_common.h"
+
+    #include "driver/rmt.h"
+
+    // micropython includes
+    #include "mphalport.h"
+    #include "py/obj.h"
+    #include "py/objarray.h"
+
+    typedef enum mp_lcd_led_ic_type {
+        APA104,
+        APA105,
+        APA109,
+        WS2811,
+        WS2812,
+        WS2812B,
+        WS2813,
+        WS2814,
+        WS2815,
+        WS2815B,
+        WS2816A,
+        WS2816B,
+        WS2816C,
+        WS2818,
+        WS2818A,
+        WS2818B,
+        WS2851,
+        SK6805,
+        SK6812,
+        SK6813,
+        SK6818,
+        SK6822,
+        CUSTOM = 0xFF
+    } mp_lcd_led_ic_type;
+
+    typedef enum mp_lcd_led_pixel_order {
+        RGB,
+        RBG,
+        GRB,
+        GBR,
+        BRG,
+        BGR,
+    } mp_lcd_led_pixel_order;
+
+    typedef struct _mp_lcd_led_bit_timing {
+        uint16_t high;
+        uint16_t low;
+    } mp_lcd_led_bit_timing;
+
+    typedef struct {
+        rmt_encoder_t base;
+        rmt_encoder_t *bytes_encoder;
+        rmt_encoder_t *copy_encoder;
+        int state;
+        rmt_symbol_word_t reset_code;
+    } mp_lcd_led_strip_encoder_t;
+
+    typedef struct _mp_lcd_led_color_temp {
+        uint8_t r;
+        uint8_t g;
+        uint8_t b;
+        bool blue_correct;
+    } mp_lcd_led_color_temp;
+
+    typedef struct _mp_lcd_led_bus_obj_t {
+        mp_obj_base_t base;
+
+        mp_obj_t callback;
+
+        void *buf1;
+        void *buf2;
+        uint32_t buffer_flags;
+
+        bool trans_done;
+        bool rgb565_byte_swap;
+
+        lcd_panel_io_t panel_io_handle;
+
+        uint32_t buffer_size;
+
+        mp_obj_array_t *view1;
+        mp_obj_array_t *view2;
+
+        // common config
+        mp_lcd_led_pixel_order pixel_order;
+        uint8_t rgb_order[3];
+        uint16_t pixel_count;
+        uint8_t leds_per_pixel;
+        mp_lcd_led_color_temp color_temp;
+
+        // RMT specific config
+        esp_gpio_t data_pin;
+        mp_lcd_led_bit_timing bit0;
+        mp_lcd_led_bit_timing bit1;
+        uint16_t res;
+        rmt_channel_handle_t rmt_chan;
+        mp_lcd_led_strip_encoder_t *strip_encoder
+
+        // SPI specific config
+        esp_lcd_panel_io_spi_config_t *panel_io_config;
+        esp_lcd_spi_bus_handle_t *bus_handle;
+        machine_hw_spi_device_obj_t *spi_device;
+    } mp_lcd_led_bus_obj_t;
+
+
+    extern const mp_obj_type_t mp_lcd_led_bus_type;
+
+#endif /* _ESP32_LED_BUS_H_ */
+