Arti Zirk
2de3a91b0a
subrepo: subdir: "libopencm3" merged: "88e91c9a7cce" upstream: origin: "https://github.com/libopencm3/libopencm3.git" branch: "master" commit: "88e91c9a7cce" git-subrepo: version: "0.4.3" origin: "???" commit: "???"
93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
/** @defgroup ltdc_file LTDC peripheral API
|
|
*
|
|
* @ingroup peripheral_apis
|
|
*
|
|
* @version 1.0.0
|
|
*
|
|
* @author @htmlonly © @endhtmlonly 2014
|
|
* Oliver Meier <h2obrain@gmail.com>
|
|
*
|
|
* @date 5 December 2014
|
|
*
|
|
* This library supports the LCD controller (LTDC) in the STM32F4xx and
|
|
* STM32F7xx series of ARM Cortex Microcontrollers by ST Microelectronics.
|
|
*
|
|
* LGPL License Terms @ref lgpl_license
|
|
*/
|
|
|
|
/*
|
|
* This file is part of the libopencm3 project.
|
|
*
|
|
* Copyright (C) 2014 Oliver Meier <h2obrain@gmail.com>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**@{*/
|
|
|
|
#include <libopencm3/stm32/common/ltdc_common_f47.h>
|
|
|
|
void ltdc_set_tft_sync_timings(uint16_t sync_width, uint16_t sync_height,
|
|
uint16_t h_back_porch, uint16_t v_back_porch,
|
|
uint16_t active_width, uint16_t active_height,
|
|
uint16_t h_front_porch, uint16_t v_front_porch)
|
|
{
|
|
/*assert((active_width <= 0x400) && (active_height <= 0x300));*/
|
|
|
|
uint16_t w, h;
|
|
w = sync_width - 1;
|
|
h = sync_height - 1;
|
|
/*assert((w&0xfff == w) && (h&0x7ff == h));*/
|
|
LTDC_SSCR = (w << 16) | (h << 0);
|
|
|
|
w += h_back_porch;
|
|
h += v_back_porch;
|
|
/*assert((w&0xfff == w) && (h&0x7ff == h));*/
|
|
LTDC_BPCR = (w << 16) | (h << 0);
|
|
|
|
w += active_width;
|
|
h += active_height;
|
|
/*assert((w&0xfff == w) && (h&0x7ff == h));*/
|
|
LTDC_AWCR = (w << 16) | (h << 0);
|
|
|
|
w += h_front_porch;
|
|
h += v_front_porch;
|
|
/*assert((w&0xfff == w) && (h&0x7ff == h));*/
|
|
LTDC_TWCR = (w << 16) | (h << 0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @brief LTDC Windowing Setup
|
|
@param[in] layer_number unsigned int8. @ref ltdc_layer_num
|
|
@param[in] h_back_porch unsigned int16. Horizontal Back Porch
|
|
@param[in] v_back_porch unsigned int16. Vertical Back Porch
|
|
@param[in] h_sync unsigned int16. Horizontal Sync
|
|
@param[in] v_sync unsigned int16. Vertical Sync
|
|
@param[in] width unsigned int16. Width of the screen (e.g. LCD is 320x240, width
|
|
would be 320)
|
|
@param[in] height unsigned int16. Height of the screen (e.g. LCD is 320x240,
|
|
height would be 240)
|
|
*/
|
|
void ltdc_setup_windowing(uint8_t layer_number, uint16_t h_back_porch,
|
|
uint16_t v_back_porch, uint16_t h_sync,
|
|
uint16_t v_sync, uint16_t width, uint16_t height) {
|
|
LTDC_LxWHPCR(layer_number) = (h_back_porch + width + h_sync - 1) << LTDC_LxWHPCR_WHSPPOS_SHIFT |
|
|
(h_sync + h_back_porch) << LTDC_LxWHPCR_WHSTPOS_SHIFT;
|
|
LTDC_LxWVPCR(layer_number) = (v_back_porch + height + v_sync - 1) << LTDC_LxWVPCR_WVSPPOS_SHIFT |
|
|
(v_back_porch + v_sync) << LTDC_LxWVPCR_WVSTPOS_SHIFT;
|
|
}
|
|
|
|
/**@}*/
|
|
|