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st7789h2.c
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/**
******************************************************************************
* @file st7789h2.c
* @author MCD Application Team
* @brief This file includes the driver for ST7789H2 LCD.
******************************************************************************
* @attention
*
* Copyright (c) 2017-2022 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "st7789h2.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @defgroup ST7789H2
* @{
*/
/** @defgroup ST7789H2_Private_Variables ST7789H2 Private Variables
* @{
*/
ST7789H2_Drv_t ST7789H2_Driver =
{
ST7789H2_Init,
ST7789H2_DeInit,
ST7789H2_ReadID,
ST7789H2_DisplayOn,
ST7789H2_DisplayOff,
ST7789H2_SetBrightness,
ST7789H2_GetBrightness,
ST7789H2_SetOrientation,
ST7789H2_GetOrientation,
ST7789H2_SetCursor,
ST7789H2_DrawBitmap,
ST7789H2_FillRGBRect,
ST7789H2_DrawHLine,
ST7789H2_DrawVLine,
ST7789H2_FillRect,
ST7789H2_GetPixel,
ST7789H2_SetPixel,
ST7789H2_GetXSize,
ST7789H2_GetYSize,
};
/**
* @}
*/
/** @defgroup ST7789H2_Private_FunctionPrototypes ST7789H2 Private FunctionPrototypes
* @{
*/
static int32_t ST7789H2_ReadRegWrap(const void *handle, uint16_t Reg, uint8_t *pData, uint32_t Length);
static int32_t ST7789H2_WriteRegWrap(const void *handle, uint16_t Reg, uint8_t *pData, uint32_t Length);
static int32_t ST7789H2_SendDataWrap(const void *handle, uint8_t *pData, uint32_t Length);
static void ST7789H2_Delay(const ST7789H2_Object_t *pObj, uint32_t Delay);
/**
* @}
*/
/** @addtogroup ST7789H2_Exported_Functions
* @{
*/
/**
* @brief Function to register IO bus.
* @param pObj Component object pointer.
* @param pIO Component IO pointer.
* @retval Error status.
*/
int32_t ST7789H2_RegisterBusIO(ST7789H2_Object_t *pObj, ST7789H2_IO_t *pIO)
{
int32_t ret;
if (pObj == NULL)
{
ret = ST7789H2_ERROR;
}
else
{
pObj->IO.Init = pIO->Init;
pObj->IO.DeInit = pIO->DeInit;
pObj->IO.Address = pIO->Address;
pObj->IO.WriteReg = pIO->WriteReg;
pObj->IO.ReadReg = pIO->ReadReg;
pObj->IO.SendData = pIO->SendData;
pObj->IO.GetTick = pIO->GetTick;
pObj->Ctx.ReadReg = ST7789H2_ReadRegWrap;
pObj->Ctx.WriteReg = ST7789H2_WriteRegWrap;
pObj->Ctx.SendData = ST7789H2_SendDataWrap;
pObj->Ctx.handle = pObj;
if (pObj->IO.Init != NULL)
{
ret = pObj->IO.Init();
}
else
{
ret = ST7789H2_ERROR;
}
}
return ret;
}
/**
* @brief Initialize the st7789h2 LCD component.
* @param pObj pointer to component object.
* @param ColorCoding Color coding.
* @param Orientation Orientation.
* @retval Component status.
*/
int32_t ST7789H2_Init(ST7789H2_Object_t *pObj, uint32_t ColorCoding, uint32_t Orientation)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[28];
if (pObj->IsInitialized == 0U)
{
/* Sleep In Command */
parameter[1] = 0;
parameter[0] = ST7789H2_SLEEP_IN;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Wait for 10ms */
ST7789H2_Delay(pObj, 10);
/* SW Reset Command */
parameter[0] = ST7789H2_SW_RESET;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Wait for 200ms */
ST7789H2_Delay(pObj, 200);
/* Sleep Out Command */
parameter[0] = ST7789H2_SLEEP_OUT;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Wait for 120ms */
ST7789H2_Delay(pObj, 120);
/* Memory access control */
if (Orientation == ST7789H2_ORIENTATION_PORTRAIT)
{
parameter[0] = 0x00; /* MY = 0, MX = 0, MV = 0 */
}
else if (Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = 0xA0; /* MY = 1, MX = 0, MV = 1 */
}
else if (Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
parameter[0] = 0xC0; /* MY = 1, MX = 1, MV = 0 */
}
else /* Orientation == ST7789H2_ORIENTATION_LANDSCAPE_ROT180 */
{
parameter[0] = 0x60; /* MY = 0, MX = 1, MV = 1 */
}
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
/* Color mode 16bits/pixel */
parameter[0] = (uint8_t) ColorCoding;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_COLOR_MODE, parameter, 1);
/* Display inversion On */
parameter[0] = ST7789H2_DISPLAY_INVERSION_ON;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Set Column address CASET */
if (Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = 0x00; /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x50; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* XE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = 0x00; /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x00; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* XE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_CASET, parameter, 4);
/* Set Row address RASET */
if (Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
parameter[0] = 0x00; /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x50; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* YE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = 0x00; /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x00; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* YE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_RASET, parameter, 4);
/*--------------- ST7789H2 Frame rate setting ----------------------------*/
/* PORCH control setting */
parameter[0] = 0x0C;
parameter[1] = 0x00;
parameter[2] = 0x0C;
parameter[3] = 0x00;
parameter[4] = 0x00;
parameter[5] = 0x00;
parameter[6] = 0x33;
parameter[7] = 0x00;
parameter[8] = 0x33;
parameter[9] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_PORCH_CTRL, parameter, 5);
/* GATE control setting */
parameter[0] = 0x35;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_GATE_CTRL, parameter, 1);
/*--------------- ST7789H2 Power setting ---------------------------------*/
/* VCOM setting */
parameter[0] = 0x1F;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_VCOM_SET, parameter, 1);
/* LCM Control setting */
parameter[0] = 0x2C;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_LCM_CTRL, parameter, 1);
/* VDV and VRH Command Enable */
parameter[0] = 0x01;
parameter[1] = 0x00;
parameter[2] = 0xC3;
parameter[3] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_VDV_VRH_EN, parameter, 2);
/* VDV Set */
parameter[0] = 0x20;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_VDV_SET, parameter, 1);
/* Frame Rate Control in normal mode */
parameter[0] = 0x0F;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_FR_CTRL, parameter, 1);
/* Power Control */
parameter[0] = 0xA4;
parameter[1] = 0x00;
parameter[2] = 0xA1;
parameter[3] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_POWER_CTRL, parameter, 2);
/*--------------- ST7789H2 Gamma setting ---------------------------------*/
/* Positive Voltage Gamma Control */
parameter[0] = 0xD0;
parameter[1] = 0x00;
parameter[2] = 0x08;
parameter[3] = 0x00;
parameter[4] = 0x11;
parameter[5] = 0x00;
parameter[6] = 0x08;
parameter[7] = 0x00;
parameter[8] = 0x0C;
parameter[9] = 0x00;
parameter[10] = 0x15;
parameter[11] = 0x00;
parameter[12] = 0x39;
parameter[13] = 0x00;
parameter[14] = 0x33;
parameter[15] = 0x00;
parameter[16] = 0x50;
parameter[17] = 0x00;
parameter[18] = 0x36;
parameter[19] = 0x00;
parameter[20] = 0x13;
parameter[21] = 0x00;
parameter[22] = 0x14;
parameter[23] = 0x00;
parameter[24] = 0x29;
parameter[25] = 0x00;
parameter[26] = 0x2D;
parameter[27] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_PV_GAMMA_CTRL, parameter, 14);
/* Negative Voltage Gamma Control */
parameter[0] = 0xD0;
parameter[1] = 0x00;
parameter[2] = 0x08;
parameter[3] = 0x00;
parameter[4] = 0x10;
parameter[5] = 0x00;
parameter[6] = 0x08;
parameter[7] = 0x00;
parameter[8] = 0x06;
parameter[9] = 0x00;
parameter[10] = 0x06;
parameter[11] = 0x00;
parameter[12] = 0x39;
parameter[13] = 0x00;
parameter[14] = 0x44;
parameter[15] = 0x00;
parameter[16] = 0x51;
parameter[17] = 0x00;
parameter[18] = 0x0B;
parameter[19] = 0x00;
parameter[20] = 0x16;
parameter[21] = 0x00;
parameter[22] = 0x14;
parameter[23] = 0x00;
parameter[24] = 0x2F;
parameter[25] = 0x00;
parameter[26] = 0x31;
parameter[27] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_NV_GAMMA_CTRL, parameter, 14);
/* Tearing Effect Line On: Option (00h:VSYNC Interface OFF, 01h:VSYNC Interface ON) */
parameter[0] = 0x01;
parameter[1] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_TE_LINE_ON, parameter, 1);
pObj->IsInitialized = 1U;
pObj->Orientation = Orientation;
}
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief De-Initialize the st7789h2 LCD Component.
* @param pObj pointer to component object.
* @retval Component status.
*/
int32_t ST7789H2_DeInit(ST7789H2_Object_t *pObj)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[2];
if (pObj->IsInitialized != 0U)
{
ret += ST7789H2_DisplayOff(pObj);
/* Power Off sequence ----------------------------------------------------*/
/* Sleep In Command */
parameter[1] = 0;
parameter[0] = ST7789H2_SLEEP_IN;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Wait for 10ms */
ST7789H2_Delay(pObj, 10);
pObj->IsInitialized = 0;
}
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Get the st7789h2 ID.
* @param pObj pointer to component object.
* @param Id pointer to component id.
* @retval Component status.
*/
int32_t ST7789H2_ReadID(ST7789H2_Object_t *pObj, uint32_t *Id)
{
int32_t ret;
uint8_t st7789h2_id[4] = {0};
/* Get ID from component */
ret = st7789h2_read_reg(&pObj->Ctx, ST7789H2_READ_ID1, st7789h2_id, 2);
*Id = (uint32_t)st7789h2_id[2] | ((uint32_t)st7789h2_id[3] << 8U);
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Set the display on.
* @param pObj pointer to component object.
* @retval Component status.
*/
int32_t ST7789H2_DisplayOn(ST7789H2_Object_t *pObj)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[2];
parameter[1] = 0x00U;
/* Display ON command */
parameter[0] = ST7789H2_DISPLAY_ON;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Sleep Out command */
parameter[0] = ST7789H2_SLEEP_OUT;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Set the display off.
* @param pObj pointer to component object.
* @retval Component status.
*/
int32_t ST7789H2_DisplayOff(ST7789H2_Object_t *pObj)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[2];
/* Display OFF command */
parameter[0] = 0xFEU;
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_DISPLAY_OFF_PWR_SAVE, parameter, 1);
/* Sleep In Command */
parameter[0] = ST7789H2_SLEEP_IN;
ret += st7789h2_send_data(&pObj->Ctx, parameter, 1);
/* Wait for 10ms */
ST7789H2_Delay(pObj, 10);
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Set the display brightness.
* @param pObj Pointer to component object.
* @param Brightness Display brightness to be set.
* @retval Component status.
*/
int32_t ST7789H2_SetBrightness(const ST7789H2_Object_t *pObj, uint32_t Brightness)
{
/* Feature not supported */
(void)pObj;
(void)Brightness;
return ST7789H2_ERROR;
}
/**
* @brief Get the display brightness.
* @param pObj Pointer to component object.
* @param Brightness Current display brightness.
* @retval Component status.
*/
int32_t ST7789H2_GetBrightness(const ST7789H2_Object_t *pObj, const uint32_t *Brightness)
{
/* Feature not supported */
(void)pObj;
(void)Brightness;
return ST7789H2_ERROR;
}
/**
* @brief Set the display orientation.
* @param pObj Pointer to component object.
* @param Orientation Display orientation to be set.
* @retval Component status.
*/
int32_t ST7789H2_SetOrientation(ST7789H2_Object_t *pObj, uint32_t Orientation)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[2];
/* Memory access control */
if (Orientation == ST7789H2_ORIENTATION_PORTRAIT)
{
parameter[0] = 0x00U; /* MY = 0, MX = 0, MV = 0 */
}
else if (Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = 0xA0U; /* MY = 1, MX = 0, MV = 1 */
}
else if (Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
parameter[0] = 0xC0U; /* MY = 1, MX = 1, MV = 0 */
}
else /* Orientation == ST7789H2_ORIENTATION_LANDSCAPE_ROT180 */
{
parameter[0] = 0x60U; /* MY = 0, MX = 1, MV = 1 */
}
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
pObj->Orientation = Orientation;
return ret;
}
/**
* @brief Get the display orientation.
* @param pObj Pointer to component object.
* @param Orientation Current display orientation.
* @retval Component status.
*/
int32_t ST7789H2_GetOrientation(ST7789H2_Object_t *pObj, uint32_t *Orientation)
{
int32_t ret = ST7789H2_OK;
*Orientation = pObj->Orientation;
return ret;
}
/**
* @brief Set cursor.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @retval Component status.
*/
int32_t ST7789H2_SetCursor(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[8];
/* CASET: Column Address Set */
if (pObj->Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = (uint8_t)((Xpos + 0x50U) >> 8); /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t)(Xpos + 0x50U); /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* XE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = (uint8_t)(Xpos >> 8); /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t) Xpos; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* XE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_CASET, parameter, 4);
/* RASET: Row Address Set */
if (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
parameter[0] = (uint8_t)((Ypos + 0x50U) >> 8); /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t)(Ypos + 0x50U); /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* YE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = (uint8_t)(Ypos >> 8); /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t) Ypos; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* YE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_RASET, parameter, 4);
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Display a bitmap picture.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param pBmp Pointer to bitmap.
* @retval Component status.
*/
int32_t ST7789H2_DrawBitmap(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint8_t *pBmp)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[8];
uint32_t index, size;
uint32_t width, height;
uint32_t Ystart, Ystop;
/* Read file size */
size = ((uint32_t)pBmp[5] << 24) | ((uint32_t)pBmp[4] << 16) | ((uint32_t)pBmp[3] << 8) | (uint32_t)pBmp[2];
/* Get bitmap data address offset */
index = ((uint32_t)pBmp[13] << 24) | ((uint32_t)pBmp[12] << 16) | ((uint32_t)pBmp[11] << 8) | (uint32_t)pBmp[10];
/* Get image width */
width = ((uint32_t)pBmp[21] << 24) | ((uint32_t)pBmp[20] << 16) | ((uint32_t)pBmp[19] << 8) | (uint32_t)pBmp[18];
width--;
/* Get image height */
height = ((uint32_t)pBmp[25] << 24) | ((uint32_t)pBmp[24] << 16) | ((uint32_t)pBmp[23] << 8) | (uint32_t)pBmp[22];
height--;
/* Get size of data */
size = size - index;
size = size / 2U;
/* Compute new Y start and stop values */
if (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT)
{
Ystart = 319U - (Ypos + height);
Ystop = 319U - Ypos;
}
else if (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
Ystart = 319U - (Ypos + 0x50U + height);
Ystop = 319U - (Ypos + 0x50U);
}
else
{
Ystart = 239U - (Ypos + height);
Ystop = 239U - Ypos;
}
/* Set GRAM Area - Partial Display Control */
if (pObj->Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = (uint8_t)((Xpos + 0x50U) >> 8); /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t)(Xpos + 0x50U); /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = (uint8_t)((Xpos + width + 0x50U) >> 8); /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = (uint8_t)(Xpos + width + 0x50U); /* XE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = (uint8_t)(Xpos >> 8); /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t) Xpos; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = (uint8_t)((Xpos + width) >> 8); /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = (uint8_t)(Xpos + width); /* XE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_CASET, parameter, 4);
parameter[0] = (uint8_t)(Ystart >> 8); /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = (uint8_t) Ystart; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = (uint8_t)(Ystop >> 8); /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = (uint8_t) Ystop; /* YE[7:0] */
parameter[7] = 0x00;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_RASET, parameter, 4);
if ((pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT) || (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180))
{
/* Memory access control: Invert MY */
parameter[0] = (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT) ? 0x80U : 0x40U;
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
}
else
{
/* Memory access control: Invert MX */
parameter[0] = (pObj->Orientation == ST7789H2_ORIENTATION_LANDSCAPE) ? 0xE0U : 0x20U;
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
}
/* Write GRAM */
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM, &pBmp[index], size);
/* Restore GRAM Area - Partial Display Control */
if (pObj->Orientation == ST7789H2_ORIENTATION_LANDSCAPE)
{
parameter[0] = 0x00; /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x50; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* XE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = 0x00; /* XS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x00; /* XS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* XE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* XE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_CASET, parameter, 4);
if (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180)
{
parameter[0] = 0x00; /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x50; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x01; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0x3F; /* YE[7:0] */
parameter[7] = 0x00;
}
else
{
parameter[0] = 0x00; /* YS[15:8] */
parameter[1] = 0x00;
parameter[2] = 0x00; /* YS[7:0] */
parameter[3] = 0x00;
parameter[4] = 0x00; /* YE[15:8] */
parameter[5] = 0x00;
parameter[6] = 0xEF; /* YE[7:0] */
parameter[7] = 0x00;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_RASET, parameter, 4);
if ((pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT) || (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT_ROT180))
{
/* Memory access control: Re-invert MY */
parameter[0] = (pObj->Orientation == ST7789H2_ORIENTATION_PORTRAIT) ? 0x00U : 0xC0U;
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
}
else
{
/* Memory access control: Re-invert MX */
parameter[0] = (pObj->Orientation == ST7789H2_ORIENTATION_LANDSCAPE) ? 0xA0U : 0x60U;
parameter[1] = 0x00U;
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_MADCTL, parameter, 1);
}
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Fill rectangle with RGB buffer.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param pData Pointer on RGB pixels buffer.
* @param Width Width of the rectangle.
* @param Height Height of the rectangle.
* @retval Component status.
*/
int32_t ST7789H2_FillRGBRect(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint8_t *pData, uint32_t Width, uint32_t Height)
{
int32_t ret = ST7789H2_OK;
uint8_t buffer[480];
uint8_t *rect;
uint32_t i, j;
rect = pData;
for(i = 0; i < Height; i++)
{
/* Set Cursor */
ret += ST7789H2_SetCursor(pObj, Xpos, Ypos + i);
/* Sent a complete line */
for(j = 0; j < Width; j++)
{
buffer[2U*j] = *rect;
rect++;
buffer[(2U*j)+1U] = *rect;
rect++;
}
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM, buffer, Width);
}
if(ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Display a horizontal line.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param Length Length of the line.
* @param Color Color of the line.
* @retval Component status.
*/
int32_t ST7789H2_DrawHLine(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint32_t Length, uint32_t Color)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[2];
uint32_t i;
/* Set Cursor */
ret += ST7789H2_SetCursor(pObj, Xpos, Ypos);
/* Sent a complete line */
parameter[0] = (uint8_t)(Color & 0xFFU);
parameter[1] = (uint8_t)((Color >> 8) & 0xFFU);
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM, parameter, 1);
for (i = 1; i < Length; i++)
{
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM_CONTINUE, parameter, 1);
}
/* Workaround for last pixel */
if ((Xpos + Length) == 240U)
{
/* Write last pixel */
ret += ST7789H2_SetCursor(pObj, (Xpos + Length - 1U), Ypos);
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM, parameter, 1);
}
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Display a vertical line.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param Length Length of the line.
* @param Color Color of the line.
* @retval Component status.
*/
int32_t ST7789H2_DrawVLine(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint32_t Length, uint32_t Color)
{
int32_t ret = ST7789H2_OK;
uint32_t i;
/* Sent a complete line */
for (i = 0; i < Length; i++)
{
ret += ST7789H2_SetPixel(pObj, Xpos, (Ypos + i), Color);
}
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Fill rectangle.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param Width Width of the rectangle.
* @param Height Height of the rectangle.
* @param Color Color of the rectangle.
* @retval Component status.
*/
int32_t ST7789H2_FillRect(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint32_t Width, uint32_t Height, uint32_t Color)
{
int32_t ret = ST7789H2_OK;
uint32_t i;
for (i = 0U; i < Height; i++)
{
if (ST7789H2_DrawHLine(pObj, Xpos, (i + Ypos), Width, Color) != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
break;
}
}
return ret;
}
/**
* @brief Set pixel.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param Color Color of the pixel.
* @retval Component status.
*/
int32_t ST7789H2_SetPixel(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint32_t Color)
{
int32_t ret = ST7789H2_OK;
/* Set Cursor */
ret += ST7789H2_SetCursor(pObj, Xpos, Ypos);
/* write pixel */
ret += st7789h2_write_reg(&pObj->Ctx, ST7789H2_WRITE_RAM, (uint8_t *) &Color, 1);
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Get pixel.
* @param pObj Pointer to component object.
* @param Xpos X position on LCD.
* @param Ypos Y position on LCD.
* @param Color Color of the pixel.
* @retval Component status.
*/
int32_t ST7789H2_GetPixel(ST7789H2_Object_t *pObj, uint32_t Xpos, uint32_t Ypos, uint32_t *Color)
{
int32_t ret = ST7789H2_OK;
uint8_t parameter[6] = {0};
/* Set Cursor */
ret += ST7789H2_SetCursor(pObj, Xpos, Ypos);
/* read pixel */
ret += st7789h2_read_reg(&pObj->Ctx, ST7789H2_READ_RAM, parameter, 3);
/* Set color in RGB565 format */
*Color = ((((uint32_t)parameter[3] << 8) & 0xF800U) |
(((uint32_t)parameter[2] << 3) & 0x07E0U) |
(((uint32_t)parameter[5] >> 3) & 0x001FU));
if (ret != ST7789H2_OK)
{
ret = ST7789H2_ERROR;
}
return ret;
}
/**
* @brief Get X size.
* @param pObj Pointer to component object.
* @param Xsize X size of LCD.
* @retval Component status.
*/
int32_t ST7789H2_GetXSize(const ST7789H2_Object_t *pObj, uint32_t *XSize)