diff options
Diffstat (limited to 'source/application/hal/platforms/bare-metal/bsp/bsp-packs/mps3/glcd_mps3.c')
| -rw-r--r-- | source/application/hal/platforms/bare-metal/bsp/bsp-packs/mps3/glcd_mps3.c | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/source/application/hal/platforms/bare-metal/bsp/bsp-packs/mps3/glcd_mps3.c b/source/application/hal/platforms/bare-metal/bsp/bsp-packs/mps3/glcd_mps3.c new file mode 100644 index 0000000..530be4f --- /dev/null +++ b/source/application/hal/platforms/bare-metal/bsp/bsp-packs/mps3/glcd_mps3.c @@ -0,0 +1,460 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "glcd_mps3.h" + +#include "bsp_core_log.h" +#include "font_9x15_h.h" +#include "smm_mps3.h" + +/*-------------- CLCD Controller Internal Register addresses ----------------*/ +#define CHAR_COM ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x000)) +#define CHAR_DAT ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x004)) +#define CHAR_RD ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x008)) +#define CHAR_RAW ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x00C)) +#define CHAR_MASK ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x010)) +#define CHAR_STAT ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x014)) +#define CHAR_MISC ((volatile unsigned int *)(CLCD_CONFIG_BASE + 0x04C)) + +/*--------------- Graphic LCD interface hardware definitions -----------------*/ +/* Pin CS setting to 0 or 1 */ +#define LCD_CS(x) ((x) ? (*CHAR_MISC |= CLCD_CS_Msk) : (*CHAR_MISC &= ~CLCD_CS_Msk)) +#define LCD_RST(x) ((x) ? (*CHAR_MISC |= CLCD_RESET_Msk) : (*CHAR_MISC &= ~CLCD_RESET_Msk)) +#define LCD_BL(x) ((x) ? (*CHAR_MISC |= CLCD_BL_Msk) : (*CHAR_MISC &= ~CLCD_BL_Msk)) + +#define BG_COLOR 0 /* Background colour */ +#define TXT_COLOR 1 /* Text colour */ + +/** +* Text and background colour +*/ +static volatile unsigned short Color[2] = {Black, White}; + +/** + * @brief Delay in while loop cycles. + * @param[in] cnt Number of while cycles to delay. + **/ +static void delay (int cnt) +{ + cnt <<= DELAY_2N; + while (cnt != 0) { + --cnt; + } +} + +/** + * @brief Write a command the LCD controller. + * @param[in] cmd Command to be written. + */ +static __inline void wr_cmd(unsigned char cmd) +{ + LCD_CS(0); + *CHAR_COM = cmd; + LCD_CS(1); +} + +/** + * @brief Start of data writing to the LCD controller. + */ +static __inline void wr_dat_start (void) +{ + LCD_CS(0); +} + +/** + * @brief Stop of data writing to the LCD controller. + */ +static __inline void wr_dat_stop (void) +{ + LCD_CS(1); +} + +/** + * @brief Data writing to the LCD controller. + * @param[in] dat Data to be written. + */ +static __inline void wr_dat_only(unsigned short dat) +{ + *CHAR_DAT = (dat >> 8); /* Write D8..D15 */ + *CHAR_DAT = (dat & 0xFF); /* Write D0..D7 */ +} + +/** + * @brief Write a value to the to LCD register. + * @param[in] reg Register to be written. + * @param[in] val Value to write to the register. + */ +static __inline void wr_reg(unsigned char reg, unsigned short val) +{ + LCD_CS(0); + *CHAR_COM = reg; + wr_dat_only(val); + LCD_CS(1); +} + +/** + * @brief Converts a gray value to RGB565 representation. + * @param[in] src_uchar Pointer to the source pixel. + * @return 16 bit RGB565 value. + */ +static inline uint16_t _GLCD_Gray8_to_RGB565(uint8_t *src_uchar) +{ + uint16_t val_r = (*src_uchar >> 3); + uint16_t val_g = (*src_uchar >> 2); + return ((val_r << 11) | (val_g << 5) | val_r); +} + +/** + * @brief Converts an RGB888 value to RGB565 representation. + * @param[in] src_uchar Pointer to the source pixel for R (assumed to + * be RGB format). + * @return 16 bit RGB565 value. + */ +static inline uint16_t _GLCD_RGB888_to_RGB565(uint8_t *src_uchar) +{ + uint16_t val_r = (*src_uchar >> 3) & 0x1F; + uint16_t val_g = (*(src_uchar+1) >> 2) & 0x3F; + uint16_t val_b = (*(src_uchar+2) >> 3) & 0x1F; + return ((val_r << 11) | (val_g << 5) | val_b); +} + +/* Helper typedef to encapsulate the colour conversion function + * signatures */ +typedef uint16_t (* std_clr_2_lcd_clr_fn)(uint8_t *src_uchar); + +void GLCD_SetWindow(unsigned int x, unsigned int y, unsigned int w, unsigned int h) { + unsigned int xe, ye; + + xe = x+w-1; + ye = y+h-1; + + wr_reg(0x02, x >> 8); /* Column address start MSB */ + wr_reg(0x03, x & 0xFF); /* Column address start LSB */ + wr_reg(0x04, xe >> 8); /* Column address end MSB */ + wr_reg(0x05, xe & 0xFF); /* Column address end LSB */ + + wr_reg(0x06, y >> 8); /* Row address start MSB */ + wr_reg(0x07, y & 0xFF); /* Row address start LSB */ + wr_reg(0x08, ye >> 8); /* Row address end MSB */ + wr_reg(0x09, ye & 0xFF); /* Row address end LSB */ +} + +void GLCD_WindowMax(void) +{ + GLCD_SetWindow (0, 0, GLCD_WIDTH, GLCD_HEIGHT); +} + +void GLCD_SetTextColor(unsigned short color) +{ + Color[TXT_COLOR] = color; +} + +void GLCD_SetBackColor(unsigned short color) +{ + Color[BG_COLOR] = color; +} + +void GLCD_Clear(unsigned short color) +{ + unsigned int i; + + GLCD_WindowMax(); + wr_cmd(0x22); + wr_dat_start(); + + for(i = 0; i < (GLCD_WIDTH*GLCD_HEIGHT); ++i) { + wr_dat_only(color); + } + wr_dat_stop(); +} + + +void GLCD_DrawChar( + unsigned int x, unsigned int y, + unsigned int cw, unsigned int ch, + unsigned char *c) +{ + unsigned int i, j, k, pixs; + + /* Sanity check: out of bounds? */ + if ((x + cw) > GLCD_WIDTH || (y + ch) > GLCD_HEIGHT) { + return; + } + + GLCD_SetWindow(x, y, cw, ch); + + wr_cmd(0x22); + wr_dat_start(); + + k = (cw + 7)/8; + + if (k == 1) { + for (j = 0; j < ch; ++j) { + pixs = *(unsigned char *)c; + c += 1; + + for (i = 0; i < cw; ++i) { + wr_dat_only (Color[(pixs >> i) & 1]); + } + } + } + else if (k == 2) { + for (j = 0; j < ch; ++j) { + pixs = *(unsigned short *)c; + c += 2; + + for (i = 0; i < cw; ++i) { + wr_dat_only (Color[(pixs >> i) & 1]); + } + } + } + wr_dat_stop(); +} + +void GLCD_DisplayChar( + unsigned int ln, unsigned int col, + unsigned char fi, unsigned char c) +{ + c -= 32; + switch (fi) { + case 0: /* Font 9 x 15. */ + GLCD_DrawChar(col * 9, ln * 15, 9, 15, + (unsigned char *)&Font_9x15_h[c * 15]); + break; + } +} + +void GLCD_DisplayString( + unsigned int ln, unsigned int col, + unsigned char fi, char *s) +{ + while (*s) { + GLCD_DisplayChar(ln, col++, fi, *s++); + } +} + + + +void GLCD_ClearLn(unsigned int ln, unsigned char fi) +{ + unsigned char i; + char buf[60]; + + GLCD_WindowMax(); + switch (fi) { + case 0: /* Font 9x15*/ + for (i = 0; i < (GLCD_WIDTH+8)/9; ++i) { + buf[i] = ' '; + } + buf[i+1] = 0; + break; + } + GLCD_DisplayString (ln, 0, fi, buf); +} + +void GLCD_Bitmap(unsigned int x, unsigned int y, + unsigned int w, unsigned int h, + unsigned short *bitmap) +{ + unsigned int i; + unsigned short *bitmap_ptr = bitmap; + + GLCD_SetWindow (x, y, w, h); + + wr_cmd(0x22); + wr_dat_start(); + + for (i = 0; i < (w*h); ++i) { + wr_dat_only (bitmap_ptr[i]); + } + wr_dat_stop(); +} + +void GLCD_Image(void *data, const uint32_t width, + const uint32_t height, const uint32_t channels, + const uint32_t pos_x, const uint32_t pos_y, + const uint32_t downsample_factor) +{ + uint32_t i, j = 0; /* for loops */ + const uint32_t x_incr = channels * downsample_factor; /* stride. */ + const uint32_t y_incr = channels * width * (downsample_factor - 1); /* skip rows. */ + uint8_t* src_unsigned = (uint8_t *)data; /* temporary pointer. */ + std_clr_2_lcd_clr_fn cvt_clr_fn = 0; /* colour conversion function. */ + + /* Based on number of channels, we decide which of the above functions to use. */ + switch (channels) { + case 1: + cvt_clr_fn = _GLCD_Gray8_to_RGB565; + break; + + case 3: + cvt_clr_fn = _GLCD_RGB888_to_RGB565; + break; + + default: + printf_err("number of channels not supported by display\n"); + return; + } + + /* Set the window position expected. Note: this is integer div. */ + GLCD_SetWindow(pos_x, pos_y, + width/downsample_factor, height/downsample_factor); + wr_cmd(0x22); + wr_dat_start(); + + /* Loop over the image. */ + for (j = height; j != 0; j -= downsample_factor) { + for (i = width; i != 0; i -= downsample_factor) { + wr_dat_only(cvt_clr_fn(src_unsigned)); + src_unsigned += x_incr; + } + + /* Skip rows if needed. */ + src_unsigned += y_incr; + } + + wr_dat_stop(); +} + +void GLCD_Box( + unsigned int x, unsigned int y, + unsigned int w, unsigned int h, + unsigned short color) +{ + unsigned int i; + + GLCD_SetWindow (x, y, w, h); + + wr_cmd(0x22); + wr_dat_start(); + for(i = 0; i < (w*h); ++i){ + wr_dat_only (color); + } + wr_dat_stop(); +} + + +void GLCD_Initialize (void) +{ + /* CLCD screen setup (Default CLCD screen interface state) ------------- */ + LCD_CS(1); /* deassert nCS0. */ + LCD_RST(1); /* deassert Reset. */ + LCD_BL(0); /* switch off backlight. */ + + /* Reset CLCD screen --------------------------------------------------- */ + LCD_RST(0); /* assert Reset. */ + delay(1); + LCD_RST(1); /* deassert Reset. */ + delay(10); + + /* Driving ability settings ----------------------------------------------*/ + wr_reg(0xEA, 0x00); /* Power control internal used (1). */ + wr_reg(0xEB, 0x20); /* Power control internal used (2). */ + wr_reg(0xEC, 0x0C); /* Source control internal used (1). */ + wr_reg(0xED, 0xC7); /* Source control internal used (2). */ + wr_reg(0xE8, 0x38); /* Source output period Normal mode. */ + wr_reg(0xE9, 0x10); /* Source output period Idle mode. */ + wr_reg(0xF1, 0x01); /* RGB 18-bit interface ;0x0110. */ + wr_reg(0xF2, 0x10); + + /* Adjust the Gamma Curve ------------------------------------------------*/ + wr_reg(0x40, 0x01); + wr_reg(0x41, 0x00); + wr_reg(0x42, 0x00); + wr_reg(0x43, 0x10); + wr_reg(0x44, 0x0E); + wr_reg(0x45, 0x24); + wr_reg(0x46, 0x04); + wr_reg(0x47, 0x50); + wr_reg(0x48, 0x02); + wr_reg(0x49, 0x13); + wr_reg(0x4A, 0x19); + wr_reg(0x4B, 0x19); + wr_reg(0x4C, 0x16); + + wr_reg(0x50, 0x1B); + wr_reg(0x51, 0x31); + wr_reg(0x52, 0x2F); + wr_reg(0x53, 0x3F); + wr_reg(0x54, 0x3F); + wr_reg(0x55, 0x3E); + wr_reg(0x56, 0x2F); + wr_reg(0x57, 0x7B); + wr_reg(0x58, 0x09); + wr_reg(0x59, 0x06); + wr_reg(0x5A, 0x06); + wr_reg(0x5B, 0x0C); + wr_reg(0x5C, 0x1D); + wr_reg(0x5D, 0xCC); + + /* Power voltage setting -------------------------------------------------*/ + wr_reg(0x1B, 0x1B); + wr_reg(0x1A, 0x01); + wr_reg(0x24, 0x2F); + wr_reg(0x25, 0x57); + wr_reg(0x23, 0x88); + + /* Power on setting ------------------------------------------------------*/ + wr_reg(0x18, 0x36); /* Internal oscillator frequency adj. */ + wr_reg(0x19, 0x01); /* Enable internal oscillator. */ + wr_reg(0x01, 0x00); /* Normal mode, no scroll. */ + wr_reg(0x1F, 0x88); /* Power control 6 - DDVDH Off. */ + delay(20); + wr_reg(0x1F, 0x82); /* Power control 6 - Step-up: 3 x VCI. */ + delay(5); + wr_reg(0x1F, 0x92); /* Power control 6 - Step-up: On. */ + delay(5); + wr_reg(0x1F, 0xD2); /* Power control 6 - VCOML active. */ + delay(5); + + /* Color selection -------------------------------------------------------*/ + wr_reg(0x17, 0x55); /* RGB, System interface: 16 Bit/Pixel. */ + wr_reg(0x00, 0x00); /* Scrolling off, no standby. */ + + /* Interface config ------------------------------------------------------*/ + wr_reg(0x2F, 0x11); /* LCD Drive: 1-line inversion. */ + wr_reg(0x31, 0x00); + wr_reg(0x32, 0x00); /* DPL=0, HSPL=0, VSPL=0, EPL=0. */ + + /* Display on setting ----------------------------------------------------*/ + wr_reg(0x28, 0x38); /* PT(0,0) active, VGL/VGL. */ + delay(20); + wr_reg(0x28, 0x3C); /* Display active, VGL/VGL. */ + +#if (LANDSCAPE == 1) +#if (ROTATE180 == 0) + wr_reg (0x16, 0xA8); +#else /* (ROTATE180 == 0) */ + wr_reg (0x16, 0x68); +#endif /* (ROTATE180 == 0) */ +#else /* (LANDSCAPE == 1) */ +#if (ROTATE180 == 0) + wr_reg (0x16, 0x08); +#else /* (ROTATE180 == 0) */ + wr_reg (0x16, 0xC8); +#endif /* (ROTATE180 == 0) */ +#endif /* (LANDSCAPE == 1) */ + + /* Display scrolling settings --------------------------------------------*/ + wr_reg(0x0E, 0x00); /* TFA MSB */ + wr_reg(0x0F, 0x00); /* TFA LSB */ + wr_reg(0x10, 320 >> 8); /* VSA MSB */ + wr_reg(0x11, 320 & 0xFF); /* VSA LSB */ + wr_reg(0x12, 0x00); /* BFA MSB */ + wr_reg(0x13, 0x00); /* BFA LSB */ + + LCD_BL(1); /* turn on backlight */ +} |