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/*
* This file is subject to the terms of the GFX License, v1.0. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://chibios-gfx.com/license.html
*/
/**
* @file drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h
* @brief GDISP Graphic Driver subsystem board interface for the ILI9325 display.
*
* @addtogroup GDISP
* @{
*/
#ifndef GDISP_LLD_BOARD_H
#define GDISP_LLD_BOARD_H
#ifndef noinline
#define noinline __attribute__((noinline))
#endif
static void gdisp_lld_init_board(void) {
// RST
palSetPadMode(IOPORTA, 7, PAL_MODE_OUTPUT);
palClearPad(IOPORTA, 7);
// RS
palSetPadMode(IOPORTA, 10, PAL_MODE_OUTPUT);
palSetPad(IOPORTA, 10);
// CS
palSetPadMode(IOPORTA, 9, PAL_MODE_OUTPUT);
palClearPad(IOPORTA, 9);
// Backlight
palSetPadMode(IOPORTD, 3, PAL_MODE_OUTPUT);
palSetPad(IOPORTD, 3);
// PMP setup
PMMODE = 0;
PMAEN = 0;
PMCON = 0;
PMMODEbits.MODE = 2;
PMMODEbits.WAITB = 0;
PMMODEbits.WAITM = 1;
PMMODEbits.WAITE = 0;
PMCONbits.CSF = 0;
PMCONbits.PTRDEN = 1;
PMCONbits.PTWREN = 1;
PMMODEbits.MODE16 = 1;
PMCONbits.PMPEN = 1;
palClearPad(IOPORTA, 9);
}
#define PmpWaitBusy() do {} while (PMMODEbits.BUSY)
static noinline void gdisp_lld_reset_pin(bool_t state) {
if (state)
palClearPad(IOPORTA, 7);
else
palSetPad(IOPORTA, 7);
}
static noinline void gdisp_lld_write_index(uint16_t data) {
volatile uint16_t dummy;
PmpWaitBusy();
palClearPad(IOPORTA, 10);
PMDIN = data;
PmpWaitBusy();
palSetPad(IOPORTA, 10);
dummy = PMDIN;
(void)dummy;
}
static noinline void gdisp_lld_write_data(uint16_t data) {
PMDIN = data;
PmpWaitBusy();
}
static noinline uint16_t gdisp_lld_read_data(void) {
PmpWaitBusy();
return PMDIN;
}
/* if not available, just ignore the argument and return */
static void gdisp_lld_backlight(uint8_t percentage) {
if (percentage)
palClearPad(IOPORTD, 3);
else
palSetPad(IOPORTD, 3);
}
static inline void acquire_bus(void) {
/* Nothing to do here since LCD is the only device on that bus */
}
static inline void release_bus(void) {
/* Nothing to do here since LCD is the only device on that bus */
}
#endif /* GDISP_LLD_BOARD_H */
/** @} */
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