120 lines
2.8 KiB
C
120 lines
2.8 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.io/license.html
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*/
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#ifndef _GDISP_LLD_BOARD_H
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#define _GDISP_LLD_BOARD_H
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// For a multiple display configuration we would put all this in a structure and then
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// set g->board to that structure.
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#define SET_CS palSetPad(GPIOE, GPIOE_LCD_CS);
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#define CLR_CS palClearPad(GPIOE, GPIOE_LCD_CS);
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#define SET_RS palSetPad(GPIOE, GPIOE_LCD_RS);
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#define CLR_RS palClearPad(GPIOE, GPIOE_LCD_RS);
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#define SET_WR palSetPad(GPIOE, GPIOE_PMWR);
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#define CLR_WR palClearPad(GPIOE, GPIOE_PMWR);
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#define SET_RD palSetPad(GPIOE, GPIOE_PMRD);
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#define CLR_RD palClearPad(GPIOE, GPIOE_PMRD);
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static GFXINLINE void init_board(GDisplay *g) {
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// As we are not using multiple displays we set g->board to NULL as we don't use it.
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g->board = 0;
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switch(g->controllerdisplay) {
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case 0: // Set up for Display 0
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/* Configure the pins to a well know state */
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SET_RS;
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SET_RD;
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SET_WR;
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CLR_CS;
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break;
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}
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}
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static GFXINLINE void post_init_board(GDisplay *g) {
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(void) g;
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}
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static GFXINLINE void setpin_reset(GDisplay *g, gBool state) {
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(void) g;
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if(state) {
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// reset lcd
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palClearPad(GPIOE, GPIOE_LCD_RST);
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} else {
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palSetPad(GPIOE, GPIOE_LCD_RST);
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}
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}
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static GFXINLINE void set_backlight(GDisplay *g, uint8_t percent) {
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(void) g;
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// TODO: can probably pwm this
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if(percent) {
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// turn back light on
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palSetPad(GPIOE, GPIOE_LCD_BLED);
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} else {
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// turn off
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palClearPad(GPIOE, GPIOE_LCD_BLED);
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}
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}
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static GFXINLINE void acquire_bus(GDisplay *g) {
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(void) g;
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}
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static GFXINLINE void release_bus(GDisplay *g) {
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(void) g;
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}
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/**
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* @brief Short delay
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*
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* @param[in] dly Length of delay
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*
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* @notapi
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*/
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static GFXINLINE void ili9341_delay(uint16_t dly) {
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static uint16_t i;
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for(i = 0; i < dly; i++)
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asm("nop");
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}
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static GFXINLINE void write_index(GDisplay *g, uint16_t index) {
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(void) g;
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palWriteGroup(GPIOE, 0x00FF, 0, index);
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CLR_RS; CLR_WR; ili9341_delay(1); SET_WR; ili9341_delay(1); SET_RS;
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}
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static GFXINLINE void write_data(GDisplay *g, uint16_t data) {
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(void) g;
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palWriteGroup(GPIOE, 0x00FF, 0, data);
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CLR_WR; ili9341_delay(1); SET_WR; ili9341_delay(1);
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}
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static GFXINLINE void setreadmode(GDisplay *g) {
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(void) g;
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// change pin mode to digital input
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palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_INPUT);
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}
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static GFXINLINE void setwritemode(GDisplay *g) {
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(void) g;
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// change pin mode back to digital output
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palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
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}
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static GFXINLINE uint16_t read_data(GDisplay *g) {
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uint16_t value;
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(void) g;
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CLR_RD;
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value = palReadPort(GPIOE);
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value = palReadPort(GPIOE);
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SET_RD;
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return value;
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}
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#endif /* _GDISP_LLD_BOARD_H */
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