249 lines
8.9 KiB
C
249 lines
8.9 KiB
C
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/**
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* @file ili9225.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "ili9225.h"
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#include "disp_spi.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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/*********************
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* DEFINES
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*********************/
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#define TAG "ILI9225"
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#define ILI9225_DRIVER_OUTPUT_CTRL 0x01 // Driver Output Control
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#define ILI9225_LCD_AC_DRIVING_CTRL 0x02 // LCD AC Driving Control
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#define ILI9225_ENTRY_MODE 0x03 // Entry Mode
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#define ILI9225_DISP_CTRL1 0x07 // Display Control 1
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#define ILI9225_BLANK_PERIOD_CTRL1 0x08 // Blank Period Control
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#define ILI9225_FRAME_CYCLE_CTRL 0x0B // Frame Cycle Control
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#define ILI9225_INTERFACE_CTRL 0x0C // Interface Control
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#define ILI9225_OSC_CTRL 0x0F // Osc Control
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#define ILI9225_POWER_CTRL1 0x10 // Power Control 1
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#define ILI9225_POWER_CTRL2 0x11 // Power Control 2
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#define ILI9225_POWER_CTRL3 0x12 // Power Control 3
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#define ILI9225_POWER_CTRL4 0x13 // Power Control 4
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#define ILI9225_POWER_CTRL5 0x14 // Power Control 5
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#define ILI9225_VCI_RECYCLING 0x15 // VCI Recycling
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#define ILI9225_RAM_ADDR_SET1 0x20 // Horizontal GRAM Address Set
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#define ILI9225_RAM_ADDR_SET2 0x21 // Vertical GRAM Address Set
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#define ILI9225_GRAM_DATA_REG 0x22 // GRAM Data Register
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#define ILI9225_GATE_SCAN_CTRL 0x30 // Gate Scan Control Register
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#define ILI9225_VERTICAL_SCROLL_CTRL1 0x31 // Vertical Scroll Control 1 Register
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#define ILI9225_VERTICAL_SCROLL_CTRL2 0x32 // Vertical Scroll Control 2 Register
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#define ILI9225_VERTICAL_SCROLL_CTRL3 0x33 // Vertical Scroll Control 3 Register
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#define ILI9225_PARTIAL_DRIVING_POS1 0x34 // Partial Driving Position 1 Register
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#define ILI9225_PARTIAL_DRIVING_POS2 0x35 // Partial Driving Position 2 Register
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#define ILI9225_HORIZONTAL_WINDOW_ADDR1 0x36 // Horizontal Address Start Position
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#define ILI9225_HORIZONTAL_WINDOW_ADDR2 0x37 // Horizontal Address End Position
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#define ILI9225_VERTICAL_WINDOW_ADDR1 0x38 // Vertical Address Start Position
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#define ILI9225_VERTICAL_WINDOW_ADDR2 0x39 // Vertical Address End Position
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#define ILI9225_GAMMA_CTRL1 0x50 // Gamma Control 1
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#define ILI9225_GAMMA_CTRL2 0x51 // Gamma Control 2
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#define ILI9225_GAMMA_CTRL3 0x52 // Gamma Control 3
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#define ILI9225_GAMMA_CTRL4 0x53 // Gamma Control 4
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#define ILI9225_GAMMA_CTRL5 0x54 // Gamma Control 5
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#define ILI9225_GAMMA_CTRL6 0x55 // Gamma Control 6
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#define ILI9225_GAMMA_CTRL7 0x56 // Gamma Control 7
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#define ILI9225_GAMMA_CTRL8 0x57 // Gamma Control 8
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#define ILI9225_GAMMA_CTRL9 0x58 // Gamma Control 9
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#define ILI9225_GAMMA_CTRL10 0x59 // Gamma Control 10
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/**********************
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* TYPEDEFS
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**********************/
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/*The LCD needs a bunch of command/argument values to be initialized. They are stored in this struct. */
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typedef struct
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{
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uint8_t cmd;
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uint8_t data[16];
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uint8_t databytes; //No of data in data; bit 7 = delay after set; 0xFF = end of cmds.
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} lcd_init_cmd_t;
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void ili9225_send_cmd(uint8_t cmd);
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static void ili9225_send_cmds(void *data, uint16_t length);
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static void ili9225_send_data(void *data, uint16_t length);
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static void ili9225_send_color(void *data, uint16_t length);
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static void ili9225_set_window(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
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/**********************
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* STATIC VARIABLES
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**********************/
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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void ili9225_init(void)
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{
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lcd_init_cmd_t ili_init_cmds[] = {
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{ILI9225_POWER_CTRL1, {0x00, 0x00}, 2}, // Set SAP,DSTB,STB
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{ILI9225_POWER_CTRL2, {0x00, 0x00}, 2}, // Set APON,PON,AON,VCI1EN,VC
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{ILI9225_POWER_CTRL3, {0x00, 0x00}, 2}, // Set BT,DC1,DC2,DC3
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{ILI9225_POWER_CTRL4, {0x00, 0x00}, 2}, // Set GVDD
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{ILI9225_POWER_CTRL5, {0x00, 0x00}, 2 | 0x80}, // Set VCOMH/VCOML voltage, 40ms delay
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{ILI9225_POWER_CTRL2, {0x00, 0x18}, 0x00}, // Set APON,PON,AON,VCI1EN,VC
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{ILI9225_POWER_CTRL3, {0x61, 0x21}, 0x00}, // Set BT,DC1,DC2,DC3
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{ILI9225_POWER_CTRL4, {0x00, 0x6F}, 0x00}, // Set GVDD 007F 0088
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{ILI9225_POWER_CTRL5, {0x49, 0x5F}, 0x00}, // Set VCOMH/VCOML voltage
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{ILI9225_POWER_CTRL1, {0x08, 0x00}, 2 | 0x80}, // Set SAP,DSTB,STB, 10ms delay
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{ILI9225_POWER_CTRL2, {0x10, 0x3B}, 2 | 0x80}, // Set APON,PON,AON,VCI1EN,VC, 50ms delay
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{ILI9225_DRIVER_OUTPUT_CTRL, {0x01, 0x1C}, 2},
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{ILI9225_LCD_AC_DRIVING_CTRL, {0x01, 0x00}, 2},
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{ILI9225_ENTRY_MODE, {0x10, 0x30}, 2},
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{ILI9225_DISP_CTRL1, {0x00, 0x00}, 2},
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{ILI9225_BLANK_PERIOD_CTRL1, {0x08, 0x08}, 2},
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{ILI9225_FRAME_CYCLE_CTRL, {0x11, 0x00}, 2},
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{ILI9225_INTERFACE_CTRL, {0x00, 0x00}, 2},
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{ILI9225_OSC_CTRL, {0x0D, 0x01}, 2},
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{ILI9225_VCI_RECYCLING, {0x00, 0x20}, 2},
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{ILI9225_RAM_ADDR_SET1, {0x00, 0x00}, 2},
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{ILI9225_RAM_ADDR_SET2, {0x00, 0x00}, 2},
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{ILI9225_GATE_SCAN_CTRL, {0x00, 0x00}, 2},
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{ILI9225_GAMMA_CTRL1, {0x00, 0x00}, 2},
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{ILI9225_GAMMA_CTRL2, {0x08, 0x08}, 2},
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{ILI9225_GAMMA_CTRL3, {0x08, 0x0A}, 2},
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{ILI9225_GAMMA_CTRL4, {0x00, 0x0A}, 2},
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{ILI9225_GAMMA_CTRL5, {0x0A, 0x08}, 2},
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{ILI9225_GAMMA_CTRL6, {0x08, 0x08}, 2},
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{ILI9225_GAMMA_CTRL7, {0x00, 0x00}, 2},
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{ILI9225_GAMMA_CTRL8, {0x0A, 0x00}, 2},
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{ILI9225_GAMMA_CTRL9, {0x07, 0x10}, 2},
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{ILI9225_GAMMA_CTRL10, {0x07, 0x10}, 2},
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{ILI9225_DISP_CTRL1, {0x00, 0x12}, 2 | 0x80},
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{ILI9225_DISP_CTRL1, {0x00, 0x17}, 2},
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{0xFF, {0x00}, 0xFF}};
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//Initialize non-SPI GPIOs
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gpio_pad_select_gpio(ILI9225_DC);
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gpio_set_direction(ILI9225_DC, GPIO_MODE_OUTPUT);
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#if ILI9225_USE_RST
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gpio_pad_select_gpio(ILI9225_RST);
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gpio_set_direction(ILI9225_RST, GPIO_MODE_OUTPUT);
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//Reset the display
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gpio_set_level(ILI9225_RST, 1);
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vTaskDelay(10 / portTICK_RATE_MS);
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gpio_set_level(ILI9225_RST, 0);
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vTaskDelay(10 / portTICK_RATE_MS);
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gpio_set_level(ILI9225_RST, 1);
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vTaskDelay(150 / portTICK_RATE_MS);
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#endif
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ESP_LOGI(TAG, "Initialization.");
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//Send all the commands
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uint16_t cmd = 0;
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while (ili_init_cmds[cmd].databytes != 0xFF)
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{
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ili9225_send_cmd(ili_init_cmds[cmd].cmd);
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ili9225_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes & 0x1F);
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if (ili_init_cmds[cmd].databytes & 0x80)
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{
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vTaskDelay(100 / portTICK_RATE_MS);
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}
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cmd++;
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}
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}
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void ili9225_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
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{
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uint16_t x1 = area->x1;
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uint16_t x2 = area->x2;
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uint16_t y1 = area->y1;
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uint16_t y2 = area->y2;
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ili9225_set_window(x1, y1, x2, y2);
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uint8_t data[2];
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ili9225_send_cmd(ILI9225_RAM_ADDR_SET1);
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data[0] = (x1 >> 8) & 0xFF;
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data[1] = x1 & 0xFF;
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ili9225_send_data(data, 2);
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ili9225_send_cmd(ILI9225_RAM_ADDR_SET2);
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data[0] = (y1 >> 8) & 0xFF;
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data[1] = y1 & 0xFF;
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ili9225_send_data(data, 2);
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ili9225_send_cmd(ILI9225_GRAM_DATA_REG);
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uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
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ili9225_send_color((void *)color_map, size * 2);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void ili9225_send_cmd(uint8_t cmd)
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{
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disp_wait_for_pending_transactions();
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uint8_t data[2];
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data[0] = 0x00;
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data[1] = cmd;
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gpio_set_level(ILI9225_DC, 0); /*Command mode*/
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disp_spi_send_data(data, 2);
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}
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static void ili9225_send_data(void *data, uint16_t length)
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{
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disp_wait_for_pending_transactions();
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gpio_set_level(ILI9225_DC, 1); /*Data mode*/
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disp_spi_send_data(data, length);
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}
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static void ili9225_send_color(void *data, uint16_t length)
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{
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disp_wait_for_pending_transactions();
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gpio_set_level(ILI9225_DC, 1); /*Data mode*/
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disp_spi_send_colors(data, length);
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}
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static void ili9225_set_window(uint16_t h1, uint16_t v1, uint16_t h2, uint16_t v2)
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{
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uint8_t data[2];
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ili9225_send_cmd(ILI9225_HORIZONTAL_WINDOW_ADDR1); // HEA
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data[0] = (h2 >> 8) & 0xFF;
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data[1] = h2 & 0xFF;
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ili9225_send_data(data, 2);
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ili9225_send_cmd(ILI9225_HORIZONTAL_WINDOW_ADDR2); // HSA
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data[0] = (h1 >> 8) & 0xFF;
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data[1] = h1 & 0xFF;
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ili9225_send_data(data, 2);
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ili9225_send_cmd(ILI9225_VERTICAL_WINDOW_ADDR1); // VEA
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data[0] = (v2 >> 8) & 0xFF;
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data[1] = v2 & 0xFF;
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ili9225_send_data(data, 2);
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ili9225_send_cmd(ILI9225_VERTICAL_WINDOW_ADDR2); // VSA
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data[0] = (v1 >> 8) & 0xFF;
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data[1] = v1 & 0xFF;
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ili9225_send_data(data, 2);
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}
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