diff options
Diffstat (limited to 'include/libopencm3/stm32/f4/ltdc.h')
| -rw-r--r-- | include/libopencm3/stm32/f4/ltdc.h | 497 |
1 files changed, 9 insertions, 488 deletions
diff --git a/include/libopencm3/stm32/f4/ltdc.h b/include/libopencm3/stm32/f4/ltdc.h index 9a3abc07..810772b8 100644 --- a/include/libopencm3/stm32/f4/ltdc.h +++ b/include/libopencm3/stm32/f4/ltdc.h @@ -1,8 +1,11 @@ +/** @defgroup ltdc_defines LTDC Defines + * @brief <b>Defined Constants and Types for the STM32F4xx LCD TFT Display + * Controller</b> + * @ingroup STM32F4xx_defines + */ /* * 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 @@ -16,495 +19,13 @@ * 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/>. */ - +/**@{*/ #ifndef LIBOPENCM3_STM32_F4_LTDC_H_ #define LIBOPENCM3_STM32_F4_LTDC_H_ - -#include <stdint.h> -#include <libopencm3/stm32/rcc.h> - -/** - * LTDC - */ - - -#define LTDC_SSCR (MMIO32(LTDC_BASE + 0x08)) -#define LTDC_BPCR (MMIO32(LTDC_BASE + 0x0C)) -#define LTDC_AWCR (MMIO32(LTDC_BASE + 0x10)) -#define LTDC_TWCR (MMIO32(LTDC_BASE + 0x14)) -#define LTDC_GCR (MMIO32(LTDC_BASE + 0x18)) -#define LTDC_SRCR (MMIO32(LTDC_BASE + 0x24)) -#define LTDC_BCCR (MMIO32(LTDC_BASE + 0x2C)) -#define LTDC_IER (MMIO32(LTDC_BASE + 0x34)) -#define LTDC_ISR (MMIO32(LTDC_BASE + 0x38)) -#define LTDC_ICR (MMIO32(LTDC_BASE + 0x3C)) -#define LTDC_LIPCR (MMIO32(LTDC_BASE + 0x40)) -#define LTDC_CPSR (MMIO32(LTDC_BASE + 0x44)) -#define LTDC_CDSR (MMIO32(LTDC_BASE + 0x48)) - -/* x == LTDC_LAYER_x */ -#define LTDC_LxCR(x) (MMIO32(LTDC_BASE + 0x84 + 0x80 * ((x) - 1))) -#define LTDC_L1CR LTDC_LxCR(LTDC_LAYER_1) -#define LTDC_L2CR LTDC_LxCR(LTDC_LAYER_2) - -#define LTDC_LxWHPCR(x) (MMIO32(LTDC_BASE + 0x88 + 0x80 * ((x) - 1))) -#define LTDC_L1WHPCR LTDC_LxWHPCR(LTDC_LAYER_1) -#define LTDC_L2WHPCR LTDC_LxWHPCR(LTDC_LAYER_2) - -#define LTDC_LxWVPCR(x) (MMIO32(LTDC_BASE + 0x8C + 0x80 * ((x) - 1))) -#define LTDC_L1WVPCR LTDC_LxWVPCR(LTDC_LAYER_1) -#define LTDC_L2WVPCR LTDC_LxWVPCR(LTDC_LAYER_2) - -#define LTDC_LxCKCR(x) (MMIO32(LTDC_BASE + 0x90 + 0x80 * ((x) - 1))) -#define LTDC_L1CKCR LTDC_LxCKCR(LTDC_LAYER_1) -#define LTDC_L2CKCR LTDC_LxCKCR(LTDC_LAYER_2) - -#define LTDC_LxPFCR(x) (MMIO32(LTDC_BASE + 0x94 + 0x80 * ((x) - 1))) -#define LTDC_L1PFCR LTDC_LxPFCR(LTDC_LAYER_1) -#define LTDC_L2PFCR LTDC_LxPFCR(LTDC_LAYER_2) - -#define LTDC_LxCACR(x) (MMIO32(LTDC_BASE + 0x98 + 0x80 * ((x) - 1))) -#define LTDC_L1CACR LTDC_LxCACR(LTDC_LAYER_1) -#define LTDC_L2CACR LTDC_LxCACR(LTDC_LAYER_2) - -#define LTDC_LxDCCR(x) (MMIO32(LTDC_BASE + 0x9C + 0x80 * ((x) - 1))) -#define LTDC_L1DCCR LTDC_LxDCCR(LTDC_LAYER_1) -#define LTDC_L2DCCR LTDC_LxDCCR(LTDC_LAYER_2) - -#define LTDC_LxBFCR(x) (MMIO32(LTDC_BASE + 0xA0 + 0x80 * ((x) - 1))) -#define LTDC_L1BFCR LTDC_LxBFCR(LTDC_LAYER_1) -#define LTDC_L2BFCR LTDC_LxBFCR(LTDC_LAYER_2) - -#define LTDC_LxCFBAR(x) (MMIO32(LTDC_BASE + 0xAC + 0x80 * ((x) - 1))) -#define LTDC_L1CFBAR LTDC_LxCFBAR(LTDC_LAYER_1) -#define LTDC_L2CFBAR LTDC_LxCFBAR(LTDC_LAYER_2) - -#define LTDC_LxCFBLR(x) (MMIO32(LTDC_BASE + 0xB0 + 0x80 * ((x) - 1))) -#define LTDC_L1CFBLR LTDC_LxCFBLR(LTDC_LAYER_1) -#define LTDC_L2CFBLR LTDC_LxCFBLR(LTDC_LAYER_2) - -#define LTDC_LxCFBLNR(x) (MMIO32(LTDC_BASE + 0xB4 + 0x80 * ((x) - 1))) -#define LTDC_L1CFBLNR LTDC_LxCFBLNR(LTDC_LAYER_1) -#define LTDC_L2CFBLNR LTDC_LxCFBLNR(LTDC_LAYER_2) - -#define LTDC_LxCLUTWR(x) (MMIO32(LTDC_BASE + 0xC4 + 0x80 * ((x) - 1))) -#define LTDC_L1CLUTWR LTDC_LxCLUTWR(LTDC_LAYER_1) -#define LTDC_L2CLUTWR LTDC_LxCLUTWR(LTDC_LAYER_2) - - -#define LTDC_LAYER_1 1 -#define LTDC_LAYER_2 2 - -/* --- LTDC_SSCR values ---------------------------------------------------- */ - -/* Horizontal Synchronization Width */ -#define LTDC_SSCR_HSW_SHIFT 16 -#define LTDC_SSCR_HSW_MASK 0xfff - -/* Vertical Synchronization Height */ -#define LTDC_SSCR_VSH_SHIFT 0 -#define LTDC_SSCR_VSH_MASK 0x7ff - -/* --- LTDC_BPCR values ---------------------------------------------------- */ - -/* Accumulated Horizontal Back Porch */ -#define LTDC_BPCR_AHBP_SHIFT 16 -#define LTDC_BPCR_AHBP_MASK 0xfff - -/* Accumulated Vertical Back Porch */ -#define LTDC_BPCR_AVBP_SHIFT 0 -#define LTDC_BPCR_AVBP_MASK 0x7FF - -/* --- LTDC_AWCR values ---------------------------------------------------- */ - -/* Accumulated Active Width */ -#define LTDC_AWCR_AAW_SHIFT 16 -#define LTDC_AWCR_AAW_MASK 0xfff - -/* Accumulated Active Height */ -#define LTDC_AWCR_AAH_SHIFT 0 -#define LTDC_AWCR_AAH_MASK 0x7ff - -/* --- LTDC_TWCR values ---------------------------------------------------- */ - -/* Total Width */ -#define LTDC_TWCR_TOTALW_SHIFT 16 -#define LTDC_TWCR_TOTALW_MASK 0xfff - -/* Total Height */ -#define LTDC_TWCR_TOTALH_SHIFT 0 -#define LTDC_TWCR_TOTALH_MASK 0x7ff - -/* GCR - control register */ -#define LTDC_GCR_LTDC_ENABLE (1<<0) -#define LTDC_GCR_DITHER_ENABLE (1<<16) - -#define LTDC_GCR_PCPOL_ACTIVE_LOW (0<<28) -#define LTDC_GCR_PCPOL_ACTIVE_HIGH (1<<28) - -#define LTDC_GCR_DEPOL_ACTIVE_LOW (0<<29) -#define LTDC_GCR_DEPOL_ACTIVE_HIGH (1<<29) - -#define LTDC_GCR_VSPOL_ACTIVE_LOW (0<<30) -#define LTDC_GCR_VSPOL_ACTIVE_HIGH (1<<30) - -#define LTDC_GCR_HSPOL_ACTIVE_LOW (0<<31) -#define LTDC_GCR_HSPOL_ACTIVE_HIGH (1<<31) - -/* GCR - register bit defines (no semantics) */ -#define LTDC_GCR_HSPOL (1 << 31) -#define LTDC_GCR_VSPOL (1 << 30) -#define LTDC_GCR_DEPOL (1 << 29) -#define LTDC_GCR_PCPOL (1 << 28) -#define LTDC_GCR_DITHER (1 << 16) -#define LTDC_GCR_LTDCEN (1 << 0) - -/* --- LTDC_SRCR values ---------------------------------------------------- */ - -/* Vertical Blanking Reload */ -#define LTDC_SRCR_VBR (1 << 1) - -/* Immediate Reload */ -#define LTDC_SRCR_IMR (1 << 0) - -/* LTDC_BCCR - reload control */ -#define LTDC_SRCR_RELOAD_IMR (1<<0) -#define LTDC_SRCR_RELOAD_VBR (1<<1) - -/* --- LTDC_IER values ----------------------------------------------------- */ - -/* Register Reload Interrupt Enable */ -#define LTDC_IER_RRIE (1 << 3) - -/* Transfer Error Interrupt Enable */ -#define LTDC_IER_TERRIE (1 << 2) - -/* FIFO Underrun Interrupt Enable */ -#define LTDC_IER_FUIE (1 << 1) - -/* Line Interrupt Enable */ -#define LTDC_IER_LIE (1 << 0) - -/* --- LTDC_ISR values ----------------------------------------------------- */ - -/* Register Reload Interrupt Flag */ -#define LTDC_ISR_RRIF (1 << 3) - -/* Transfer Error Interrupt Flag */ -#define LTDC_ISR_TERRIF (1 << 2) - -/* FIFO Underrun Interrupt Flag */ -#define LTDC_ISR_FUIF (1 << 1) - -/* Line Interrupt Flag */ -#define LTDC_ISR_LIF (1 << 0) - -/* --- LTDC_ICR values ----------------------------------------------------- */ - -/* Clears Register Reload Interrupt Flag */ -#define LTDC_ICR_CRRIF (1 << 3) - -/* Clears Transfer Error Interrupt Flag */ -#define LTDC_ICR_CTERRIF (1 << 2) - -/* Clears FIFO Underrun Interrupt Flag */ -#define LTDC_ICR_CFUIF (1 << 1) - -/* Clears Line Interrupt Flag */ -#define LTDC_ICR_CLIF (1 << 0) - -/* --- LTDC_LIPCR values --------------------------------------------------- */ - -/* Line Interrupt Position */ -#define LTDC_LIPCR_LIPOS_SHIFT 0 -#define LTDC_LIPCR_LIPOS_MASK 0x7ff - -/* --- LTDC_CPSR values ---------------------------------------------------- */ - -/* Current X Position */ -#define LTDC_CPSR_CXPOS_SHIFT 16 -#define LTDC_CPSR_CXPOS_MASK 0xffff - -/* Current Y Position */ -#define LTDC_CPSR_CYPOS_SHIFT 0 -#define LTDC_CPSR_CYPOS_MASK 0xffff - -/* LTDC_CDSR - display status register */ -#define LTDC_CDSR_VDES (1<<0) -#define LTDC_CDSR_HDES (1<<1) -#define LTDC_CDSR_VSYNCS (1<<2) -#define LTDC_CDSR_HSYNCS (1<<3) - -/* LTDC_LxCR - layer control */ -#define LTDC_LxCR_LAYER_ENABLE (1<<0) -#define LTDC_LxCR_COLKEY_ENABLE (1<<1) -#define LTDC_LxCR_COLTAB_ENABLE (1<<4) - -/* --- LTDC_LxWHPCR values ------------------------------------------------- */ - -/* Window Horizontal Stop Position */ -#define LTDC_LxWHPCR_WHSPPOS_SHIFT 16 -#define LTDC_LxWHPCR_WHSPPOS_MASK 0xfff - -/* Window Horizontal Start Position */ -#define LTDC_LxWHPCR_WHSTPOS_SHIFT 0 -#define LTDC_LxWHPCR_WHSTPOS_MASK 0xfff - -/* --- LTDC_LxWVPCR values ------------------------------------------------- */ - -/* Window Vertical Stop Position */ -#define LTDC_LxWVPCR_WVSPPOS_SHIFT 16 -#define LTDC_LxWVPCR_WVSPPOS_MASK 0x7ff - -/* Window Vertical Start Position */ -#define LTDC_LxWVPCR_WVSTPOS_SHIFT 0 -#define LTDC_LxWVPCR_WVSTPOS_MASK 0x7ff - -/* --- LTDC_LxCKCR values -------------------------------------------------- */ - -/* Color Key Red */ -#define LTDC_LxCKCR_CKRED_SHIFT 16 -#define LTDC_LxCKCR_CKRED_MASK 0xff - -/* Color Key Green */ -#define LTDC_LxCKCR_CKGREEN_SHIFT 16 -#define LTDC_LxCKCR_CKGREEN_MASK 0xff - -/* Color Key Blue */ -#define LTDC_LxCKCR_CKBLUE_SHIFT 16 -#define LTDC_LxCKCR_CKBLUE_MASK 0xff - -/* LTDC_LxPFCR - Pixel formats */ -#define LTDC_LxPFCR_ARGB8888 (0b000) -#define LTDC_LxPFCR_RGB888 (0b001) -#define LTDC_LxPFCR_RGB565 (0b010) -#define LTDC_LxPFCR_ARGB1555 (0b011) -#define LTDC_LxPFCR_ARGB4444 (0b100) -#define LTDC_LxPFCR_L8 (0b101) -#define LTDC_LxPFCR_AL44 (0b110) -#define LTDC_LxPFCR_AL88 (0b111) - -/* --- LTDC_LxCACR values -------------------------------------------------- */ - -/* Constant Alpha */ -#define LTDC_LxCACR_CONSTA_SHIFT 0 -#define LTDC_LxCACR_CONSTA_MASK 0xff - -/* --- LTDC_LxDCCR values -------------------------------------------------- */ - -/* Default Color Alpha */ -#define LTDC_LxDCCR_DCALPHA_SHIFT 24 -#define LTDC_LxDCCR_DCALPHA_MASK 1 - -/* Default Color Red */ -#define LTDC_LxDCCR_DCRED_SHIFT 16 -#define LTDC_LxDCCR_DCRED_MASK 1 - -/* Default Color Green */ -#define LTDC_LxDCCR_DCGREEN_SHIFT 8 -#define LTDC_LxDCCR_DCGREEN_MASK 1 - -/* Default Color Blue */ -#define LTDC_LxDCCR_DCBLUE_SHIFT 0 -#define LTDC_LxDCCR_DCBLUE_MASK 1 - -/* LTDC_LxBFCR - Blending factors - BF1 */ -#define LTDC_LxBFCR_BF1_CONST_ALPHA (0b100) -#define LTDC_LxBFCR_BF1_PIXEL_ALPHA_x_CONST_ALPHA (0b110) -/* LTDC_LxBFCR - Blending factors - BF2 */ -#define LTDC_LxBFCR_BF2_CONST_ALPHA (0b101) -#define LTDC_LxBFCR_BF2_PIXEL_ALPHA_x_CONST_ALPHA (0b111) - -/* --- LTDC_LxCFBAR values ------------------------------------------------- */ - -/* Color Frame Buffer Start Address */ -#define LTDC_LxCFBAR_CFBAR_SHIFT 0 -#define LTDC_LxCFBAR_CFBAR_MASK 0xffffffff - -/* --- LTDC_LxCFBLR values ------------------------------------------------- */ - -/* Color Frame Buffer Pitch */ -#define LTDC_LxCFBLR_CFBP_SHIFT 16 -#define LTDC_LxCFBLR_CFBP_MASK 0x1fff - -/* Color Frame Buffer Line Length */ -#define LTDC_LxCFBLR_CFBLL_SHIFT 0 -#define LTDC_LxCFBLR_CFBLL_MASK 0x1fff - -/* --- LTDC_LxCFBLNR values ------------------------------------------------ */ - -/* Frame Buffer Line Number */ -#define LTDC_LxCFBLNR_CFBLNBR_SHIFT 0 -#define LTDC_LxCFBLNR_CFBLNBR_MASK 0x3ff - -/* --- LTDC_LxCLUTWR values ------------------------------------------------ */ - -/* CLUT Address */ -#define LTDC_LxCLUTWR_CLUTADD_SHIFT 24 -#define LTDC_LxCLUTWR_CLUTADD_MASK 0xff - -/* Red */ -#define LTDC_LxCLUTWR_RED_SHIFT 16 -#define LTDC_LxCLUTWR_RED_MASK 0xff - -/* Green */ -#define LTDC_LxCLUTWR_GREEN_SHIFT 8 -#define LTDC_LxCLUTWR_GREEN_MASK 0xff - -/* Blue */ -#define LTDC_LxCLUTWR_BLUE_SHIFT 0 -#define LTDC_LxCLUTWR_BLUE_MASK 0xff - -/** - * simple helper macros - */ - -/* global */ -static inline void ltdc_ctrl_enable(uint32_t ctrl_flags) -{ - LTDC_GCR |= ctrl_flags; -} - -static inline void ltdc_ctrl_disable(uint32_t ctrl_flags) -{ - LTDC_GCR &= ~(ctrl_flags); -} - -static inline void ltdc_reload(uint32_t reload_flags) -{ - LTDC_SRCR = reload_flags; -} - -static inline void ltdc_set_background_color(uint8_t r, uint8_t g, uint8_t b) -{ - LTDC_BCCR = (((r)&255)<<16) | - (((g)&255)<<8) | - (((b)&255)<<0); -} - -static inline void ltdc_get_current_position(uint16_t *x, uint16_t *y) -{ - uint32_t tmp = LTDC_CPSR; - *x = tmp >> 16; - *y = tmp &= 0xFFFF; -} - -static inline uint16_t ltdc_get_current_position_x(void) -{ - return LTDC_CPSR >> 16; -} - -static inline uint16_t ltdc_get_current_position_y(void) -{ - return LTDC_CPSR & 0xffff; -} - -static inline uint32_t ltdc_get_display_status(uint32_t status_flags) -{ - return LTDC_CDSR & status_flags; -} - -/* layers */ -static inline void ltdc_layer_ctrl_enable(uint32_t layer, uint32_t ctrl_flags) -{ - LTDC_LxCR(layer) |= ctrl_flags; -} - -static inline void ltdc_layer_ctrl_disable(uint32_t layer, uint32_t ctrl_flags) -{ - LTDC_LxCR(layer) &= ~(ctrl_flags); -} - -static inline void ltdc_set_color_key(uint32_t layer, - uint8_t r, uint8_t g, uint8_t b) -{ - LTDC_LxCKCR(layer) = ((((r)&255)<<16) | - (((g)&255)<<8) | - (((b)&255)<<0)); -} - -static inline void ltdc_set_pixel_format(uint32_t layer, uint32_t format) -{ - LTDC_LxPFCR(layer) = format; -} - -static inline void ltdc_set_constant_alpha(uint32_t layer, uint8_t alpha) -{ - LTDC_LxCACR(layer) = ((alpha)&255); -} - -static inline void ltdc_set_default_colors(uint32_t layer, - uint8_t a, - uint8_t r, uint8_t g, uint8_t b) -{ - LTDC_LxDCCR(layer) = ((((a)&255)<<24) | - (((r)&255)<<16) | - (((g)&255)<<8) | - (((b)&255)<<0)); -} - -static inline void ltdc_set_blending_factors(uint32_t layer, - uint8_t bf1, uint8_t bf2) -{ - LTDC_LxBFCR(layer) = ((bf1)<<8) | ((bf2)<<0); -} - -static inline void ltdc_set_fbuffer_address(uint32_t layer, uint32_t address) -{ - LTDC_LxCFBAR(layer) = (uint32_t)address; -} - -static inline void ltdc_set_fb_line_length(uint32_t layer, - uint16_t len, uint16_t pitch) -{ - LTDC_LxCFBLR(layer) = ((((pitch)&0x1FFF)<<16) | (((len)&0x1FFF)<<0)); -} - -static inline void ltdc_set_fb_line_count(uint32_t layer, uint16_t linecount) -{ - LTDC_LxCFBLNR(layer) = (((linecount)&0x3FF)<<0); -} - -/** - * more complicated helper functions - */ -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 -); -void ltdc_setup_windowing( - uint8_t layer_number, - uint16_t h_back_porch, uint16_t v_back_porch, - uint16_t active_width, uint16_t active_height -); - - - -/** - * Helper function to wait for SRCR reload to complete or so - */ - -static inline bool LTDC_SRCR_IS_RELOADING(void) -{ - return (LTDC_SRCR & (LTDC_SRCR_RELOAD_VBR | - LTDC_SRCR_RELOAD_IMR)) != 0; -} - -/** - * color conversion helper function - * (simulate the ltdc color conversion) - */ - -static inline uint16_t ltdc_get_rgb888_from_rgb565(uint16_t rgb888) -{ - return ((((rgb888) & 0xF800) >> (11-8))/31)<<16 - | ((((rgb888) & 0x07E0) << (8-5))/63)<<8 - | ((((rgb888) & 0x001F) << (8-0))/31)<<0; -} - +#include <libopencm3/stm32/common/ltdc_common_f47.h> #endif /* LIBOPENCM3_STM32_F4_LTDC_H_ */ + +/**@}*/ |