mirror of
https://github.com/tsl0922/EPD-nRF5.git
synced 2025-12-14 16:58:14 +08:00
simplify epd driver api
This commit is contained in:
Shuanglei Tao
204
EPD/UC8176.c
204
EPD/UC8176.c
@@ -31,48 +31,52 @@
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#include "nrf_log.h"
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// commands used by this driver
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enum {
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CMD_PSR = 0x00, // Panel Setting
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CMD_POF = 0x02, // Power OFF
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CMD_PON = 0x04, // Power ON
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CMD_DSLP = 0x07, // Deep sleep
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CMD_DTM1 = 0x10, // Display Start Transmission 1
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CMD_DRF = 0x12, // Display Refresh
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CMD_DTM2 = 0x13, // Display Start transmission 2
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CMD_TSC = 0x40, // Temperature Sensor Calibration
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CMD_CDI = 0x50, // Vcom and data interval setting
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CMD_PTL = 0x90, // Partial Window
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CMD_PTIN = 0x91, // Partial In
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CMD_PTOUT = 0x92, // Partial Out
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CMD_CCSET = 0xE0, // Cascade Setting
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CMD_TSSET = 0xE5, // Force Temperauture
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} UC8176_CMD;
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#define CMD_PSR 0x00 // Panel Setting
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#define CMD_POF 0x02 // Power OFF
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#define CMD_PON 0x04 // Power ON
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#define CMD_DSLP 0x07 // Deep sleep
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#define CMD_DTM1 0x10 // Display Start Transmission 1
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#define CMD_DRF 0x12 // Display Refresh
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#define CMD_DTM2 0x13 // Display Start transmission 2
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#define CMD_TSC 0x40 // Temperature Sensor Calibration
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#define CMD_CDI 0x50 // Vcom and data interval setting
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#define CMD_PTL 0x90 // Partial Window
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#define CMD_PTIN 0x91 // Partial In
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#define CMD_PTOUT 0x92 // Partial Out
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#define CMD_CCSET 0xE0 // Cascade Setting
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#define CMD_TSSET 0xE5 // Force Temperauture
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// Display resolution
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#define EPD_4IN2_WIDTH 400
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#define EPD_4IN2_HEIGHT 300
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// PSR registers
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#define PSR_RES1 BIT(7)
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#define PSR_RES0 BIT(6)
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#define PSR_REG BIT(5)
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#define PSR_BWR BIT(4)
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#define PSR_UD BIT(3)
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#define PSR_SHL BIT(2)
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#define PSR_SHD BIT(1)
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#define PSR_RST BIT(0)
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static void EPD_4IN2_PowerOn(void)
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static void UC8176_PowerOn(void)
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{
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EPD_WriteCommand(CMD_PON);
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EPD_WaitBusy(LOW, 100);
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}
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static void EPD_4IN2_PowerOff(void)
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static void UC8176_PowerOff(void)
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{
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EPD_WriteCommand(CMD_POF);
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EPD_WaitBusy(LOW, 100);
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}
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// Read temperature from driver chip
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int8_t EPD_4IN2_Read_Temp(void)
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int8_t UC8176_Read_Temp(void)
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{
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EPD_WriteCommand_SW(CMD_TSC);
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return (int8_t) EPD_ReadByte_SW();
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}
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// Force temperature (will trigger OTP LUT switch)
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void EPD_4IN2_Force_Temp(int8_t value)
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void UC8176_Force_Temp(int8_t value)
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{
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EPD_WriteCommand_SW(CMD_CCSET);
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EPD_WriteByte_SW(0x02);
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@@ -84,15 +88,15 @@ void EPD_4IN2_Force_Temp(int8_t value)
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function : Turn On Display
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parameter:
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******************************************************************************/
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void EPD_4IN2_Refresh(void)
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void UC8176_Refresh(void)
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{
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NRF_LOG_DEBUG("[EPD]: refresh begin\n");
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EPD_4IN2_PowerOn();
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NRF_LOG_DEBUG("[EPD]: temperature: %d\n", EPD_4IN2_Read_Temp());
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UC8176_PowerOn();
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NRF_LOG_DEBUG("[EPD]: temperature: %d\n", UC8176_Read_Temp());
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EPD_WriteCommand(CMD_DRF);
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delay(100);
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EPD_WaitBusy(LOW, 20000);
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EPD_4IN2_PowerOff();
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EPD_WaitBusy(LOW, 30000);
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UC8176_PowerOff();
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NRF_LOG_DEBUG("[EPD]: refresh end\n");
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}
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@@ -100,34 +104,53 @@ void EPD_4IN2_Refresh(void)
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function : Initialize the e-Paper register
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parameter:
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******************************************************************************/
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void EPD_4IN2_Init(void)
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void UC8176_Init(epd_res_t res, bool bwr)
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{
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EPD_BWR_MODE = bwr;
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EPD_Reset(HIGH, 10);
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EPD_WriteCommand(CMD_PSR); // panel setting
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EPD_WriteByte(0x1f); // 400x300 B/W mode, LUT from OTP
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EPD_WriteCommand(CMD_CDI); // VCOM AND DATA INTERVAL SETTING
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EPD_WriteByte(0x97); // LUTB=0 LUTW=1 interval=10
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}
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void EPD_4IN2B_V2_Init(void)
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{
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EPD_Reset(HIGH, 200);
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uint8_t psr = PSR_UD | PSR_SHL | PSR_SHD | PSR_RST;
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if (!EPD_BWR_MODE) psr |= PSR_BWR;
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switch (res) {
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case EPD_RES_320x300:
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EPD_WIDTH = 320;
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EPD_HEIGHT = 300;
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psr |= PSR_RES0;
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break;
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case EPD_RES_320x240:
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EPD_WIDTH = 320;
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EPD_HEIGHT = 240;
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psr |= PSR_RES1;
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break;
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case EPD_RES_200x300:
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EPD_WIDTH = 200;
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EPD_HEIGHT = 300;
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psr |= PSR_RES1 | PSR_RES0;
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break;
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case EPD_RES_400x300:
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default:
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EPD_WIDTH = 400;
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EPD_HEIGHT = 300;
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break;
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}
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NRF_LOG_DEBUG("[EPD]: PSR=%02x\n", psr);
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EPD_WriteCommand(CMD_PSR);
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EPD_WriteByte(0x0f); // 400x300 B/W/R mode, LUT from OTP
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EPD_WriteByte(psr);
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if (!EPD_BWR_MODE) {
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EPD_WriteCommand(CMD_CDI);
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EPD_WriteByte(0x97);
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}
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}
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/******************************************************************************
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function : Clear screen
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parameter:
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******************************************************************************/
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void EPD_4IN2_Clear(void)
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void UC8176_Clear(void)
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{
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uint16_t Width, Height;
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Width = (EPD_4IN2_WIDTH % 8 == 0)? (EPD_4IN2_WIDTH / 8 ): (EPD_4IN2_WIDTH / 8 + 1);
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Height = EPD_4IN2_HEIGHT;
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uint16_t Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
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uint16_t Height = EPD_HEIGHT;
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EPD_WriteCommand(CMD_DTM1);
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for (uint16_t j = 0; j < Height; j++) {
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@@ -143,7 +166,7 @@ void EPD_4IN2_Clear(void)
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}
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}
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EPD_4IN2_Refresh();
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UC8176_Refresh();
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}
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static void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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@@ -164,41 +187,29 @@ static void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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EPD_WriteByte(0x01);
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}
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void EPD_4IN2_Write_Image(uint8_t *black, uint8_t *color, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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void UC8176_Write_Image(uint8_t *black, uint8_t *color, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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uint16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
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x -= x % 8; // byte boundary
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w = wb * 8; // byte boundary
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if (x + w > EPD_4IN2_WIDTH || y + h > EPD_4IN2_HEIGHT) return;
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if (x + w > EPD_WIDTH || y + h > EPD_HEIGHT) return;
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EPD_WriteCommand(CMD_PTIN); // partial in
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_setPartialRamArea(x, y, w, h);
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EPD_WriteCommand(CMD_DTM2);
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for (uint16_t i = 0; i < h; i++) {
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for (uint16_t j = 0; j < w / 8; j++) {
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EPD_WriteByte(black[j + i * wb]);
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}
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}
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EPD_WriteCommand(CMD_PTOUT); // partial out
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}
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void EPD_4IN2B_V2_Write_Image(uint8_t *black, uint8_t *color, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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uint16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
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x -= x % 8; // byte boundary
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w = wb * 8; // byte boundary
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if (x + w > EPD_4IN2_WIDTH || y + h > EPD_4IN2_HEIGHT) return;
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EPD_WriteCommand(CMD_PTIN); // partial in
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_setPartialRamArea(x, y, w, h);
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EPD_WriteCommand(CMD_DTM1);
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for (uint16_t i = 0; i < h; i++) {
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for (uint16_t j = 0; j < w / 8; j++) {
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EPD_WriteByte(black ? black[j + i * wb] : 0xFF);
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if (EPD_BWR_MODE) {
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EPD_WriteCommand(CMD_DTM1);
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for (uint16_t i = 0; i < h; i++) {
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for (uint16_t j = 0; j < w / 8; j++) {
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EPD_WriteByte(black ? black[j + i * wb] : 0xFF);
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}
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}
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}
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EPD_WriteCommand(CMD_DTM2);
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for (uint16_t i = 0; i < h; i++) {
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for (uint16_t j = 0; j < w / 8; j++) {
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EPD_WriteByte(color ? color[j + i * wb] : 0xFF);
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if (EPD_BWR_MODE)
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EPD_WriteByte(color ? color[j + i * wb] : 0xFF);
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else
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EPD_WriteByte(black[j + i * wb]);
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}
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}
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EPD_WriteCommand(CMD_PTOUT); // partial out
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@@ -208,42 +219,35 @@ void EPD_4IN2B_V2_Write_Image(uint8_t *black, uint8_t *color, uint16_t x, uint16
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void EPD_4IN2_Sleep(void)
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void UC8176_Sleep(void)
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{
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EPD_4IN2_PowerOff();
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UC8176_PowerOff();
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EPD_WriteCommand(CMD_DSLP);
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EPD_WriteByte(0XA5);
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}
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const epd_driver_t epd_driver_4in2 = {
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.id = EPD_DRIVER_4IN2,
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.width = EPD_4IN2_WIDTH,
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.height = EPD_4IN2_HEIGHT,
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.init = EPD_4IN2_Init,
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.clear = EPD_4IN2_Clear,
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.send_command = EPD_WriteCommand,
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.send_byte = EPD_WriteByte,
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.send_data = EPD_WriteData,
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.write_image = EPD_4IN2_Write_Image,
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.refresh = EPD_4IN2_Refresh,
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.sleep = EPD_4IN2_Sleep,
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.read_temp = EPD_4IN2_Read_Temp,
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.force_temp = EPD_4IN2_Force_Temp,
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// Declare driver and models
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static epd_driver_t epd_drv_uc8176 = {
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.init = UC8176_Init,
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.clear = UC8176_Clear,
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.write_image = UC8176_Write_Image,
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.refresh = UC8176_Refresh,
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.sleep = UC8176_Sleep,
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.read_temp = UC8176_Read_Temp,
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.force_temp = UC8176_Force_Temp,
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};
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const epd_driver_t epd_driver_4in2bv2 = {
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.id = EPD_DRIVER_4IN2B_V2,
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.width = EPD_4IN2_WIDTH,
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.height = EPD_4IN2_HEIGHT,
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.init = EPD_4IN2B_V2_Init,
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.clear = EPD_4IN2_Clear,
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.send_command = EPD_WriteCommand,
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.send_byte = EPD_WriteByte,
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.send_data = EPD_WriteData,
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.write_image = EPD_4IN2B_V2_Write_Image,
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.refresh = EPD_4IN2_Refresh,
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.sleep = EPD_4IN2_Sleep,
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.read_temp = EPD_4IN2_Read_Temp,
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.force_temp = EPD_4IN2_Force_Temp,
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const epd_model_t epd_4in2 = {
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.id = EPD_4IN2,
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.drv = &epd_drv_uc8176,
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.res = EPD_RES_400x300,
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.bwr = false,
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};
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const epd_model_t epd_4in2bv2 = {
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.id = EPD_4IN2B_V2,
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.drv = &epd_drv_uc8176,
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.res = EPD_RES_400x300,
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.bwr = true,
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};
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