/*
    ChibiOS/GFX - Copyright (C) 2012
                 Joel Bodenmann aka Tectu <joel@unormal.org>

    This file is part of ChibiOS/GFX.

    ChibiOS/GFX is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    ChibiOS/GFX is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * @file    drivers/gdisp/ILI9320/gdisp_lld_board_olimex_stm32_lcd.h
 * @brief   GDISP Graphic Driver subsystem board interface for the ILI9320 display.
 *
 * @addtogroup GDISP
 * @{
 */

#ifndef GDISP_LLD_BOARD_H
#define GDISP_LLD_BOARD_H

#define GDISP_REG              (*((volatile uint16_t *) 0x60000000)) /* RS = 0 */
#define GDISP_RAM              (*((volatile uint16_t *) 0x60100000)) /* RS = 1 */

static __inline void GDISP_LLD(init_board)(void) {
	/* FSMC setup for F1 */
	rccEnableAHB(RCC_AHBENR_FSMCEN, 0);

    /* set pin modes */
    IOBus busD = {GPIOD, PAL_WHOLE_PORT, 0}; 
    IOBus busE = {GPIOE, PAL_WHOLE_PORT, 0}; 
    palSetBusMode(&busD, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
    palSetBusMode(&busE, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
	palSetPadMode(GPIOE, GPIOE_TFT_RST, PAL_MODE_OUTPUT_PUSHPULL);
	palSetPadMode(GPIOD, GPIOD_TFT_LIGHT, PAL_MODE_OUTPUT_PUSHPULL);

    const unsigned char FSMC_Bank = 0;

    /* FSMC timing */
    FSMC_Bank1->BTCR[FSMC_Bank+1] = (6) | (10 << 8) | (10 << 16);

    /* Bank1 NOR/SRAM control register configuration
     * This is actually not needed as already set by default after reset */
    FSMC_Bank1->BTCR[FSMC_Bank] = FSMC_BCR1_MWID_0 | FSMC_BCR1_WREN | FSMC_BCR1_MBKEN;
}

static __inline void GDISP_LLD(setpin_reset)(bool_t state) {
	if(state)
		palClearPad(GPIOE, GPIOE_TFT_RST);
	else
		palSetPad(GPIOE, GPIOE_TFT_RST);
}

static __inline void GDISP_LLD(write_index)(uint16_t reg) {
	GDISP_REG = reg;
}

static __inline void GDISP_LLD(write_data)(uint16_t data) {
	GDISP_RAM = data;
}

static __inline uint16_t GDISP_LLD(read_data)(void) {
	return GDISP_RAM;
}

static __inline void GDISP_LLD(set_backlight)(uint8_t percent) {
	if(percent == 100)
		palClearPad(GPIOD, GPIOD_TFT_LIGHT);
	else
		palSetPad(GPIOD, GPIOD_TFT_LIGHT);
}

#endif /* GDISP_LLD_BOARD_H */
/** @} */