107 lines
2.2 KiB
C
107 lines
2.2 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://chibios-gfx.com/license.html
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*/
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/**
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* @file drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h
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* @brief GDISP Graphic Driver subsystem board interface for the ILI9325 display.
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*
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* @addtogroup GDISP
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* @{
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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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#ifndef noinline
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#define noinline __attribute__((noinline))
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#endif
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static void gdisp_lld_init_board(void) {
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// RST
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palSetPadMode(IOPORTA, 7, PAL_MODE_OUTPUT);
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palClearPad(IOPORTA, 7);
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// RS
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palSetPadMode(IOPORTA, 10, PAL_MODE_OUTPUT);
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palSetPad(IOPORTA, 10);
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// CS
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palSetPadMode(IOPORTA, 9, PAL_MODE_OUTPUT);
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palClearPad(IOPORTA, 9);
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// Backlight
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palSetPadMode(IOPORTD, 3, PAL_MODE_OUTPUT);
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palSetPad(IOPORTD, 3);
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// PMP setup
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PMMODE = 0;
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PMAEN = 0;
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PMCON = 0;
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PMMODEbits.MODE = 2;
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PMMODEbits.WAITB = 0;
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PMMODEbits.WAITM = 1;
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PMMODEbits.WAITE = 0;
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PMCONbits.CSF = 0;
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PMCONbits.PTRDEN = 1;
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PMCONbits.PTWREN = 1;
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PMMODEbits.MODE16 = 1;
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PMCONbits.PMPEN = 1;
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palClearPad(IOPORTA, 9);
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}
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#define PmpWaitBusy() do {} while (PMMODEbits.BUSY)
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static noinline void gdisp_lld_reset_pin(bool_t state) {
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if (state)
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palClearPad(IOPORTA, 7);
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else
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palSetPad(IOPORTA, 7);
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}
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static noinline void gdisp_lld_write_index(uint16_t data) {
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volatile uint16_t dummy;
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PmpWaitBusy();
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palClearPad(IOPORTA, 10);
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PMDIN = data;
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PmpWaitBusy();
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palSetPad(IOPORTA, 10);
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dummy = PMDIN;
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(void)dummy;
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}
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static noinline void gdisp_lld_write_data(uint16_t data) {
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PMDIN = data;
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PmpWaitBusy();
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}
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static noinline uint16_t gdisp_lld_read_data(void) {
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PmpWaitBusy();
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return PMDIN;
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}
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/* if not available, just ignore the argument and return */
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static void gdisp_lld_backlight(uint8_t percentage) {
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if (percentage)
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palClearPad(IOPORTD, 3);
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else
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palSetPad(IOPORTD, 3);
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}
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static inline void acquire_bus(void) {
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/* Nothing to do here since LCD is the only device on that bus */
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}
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static inline void release_bus(void) {
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/* Nothing to do here since LCD is the only device on that bus */
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}
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#endif /* GDISP_LLD_BOARD_H */
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/** @} */
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