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Diffstat (limited to 'include/libopencm3/stm32/common/ltdc_common_f47.h')
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1 files changed, 535 insertions, 0 deletions
diff --git a/include/libopencm3/stm32/common/ltdc_common_f47.h b/include/libopencm3/stm32/common/ltdc_common_f47.h new file mode 100644 index 00000000..d938d6cc --- /dev/null +++ b/include/libopencm3/stm32/common/ltdc_common_f47.h @@ -0,0 +1,535 @@ +/** @addtogroup ltdc_defines + * + * @version 1.0.0 + * + * @author @htmlonly © @endhtmlonly 2014 + * Oliver Meier <h2obrain@gmail.com> + * + * @date 5 December 2014 + * + * This library supports the LCD TFT display 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/>. + */ + +/**@{*/ +/** @cond */ +#ifndef LIBOPENCM3_STM32_COMMON_LTDC_COMMON_F47_H_ +/** @endcond */ +#define LIBOPENCM3_STM32_COMMON_LTDC_COMMON_F47_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 uint32_t ltdc_get_fbuffer_address(uint32_t layer) +{ + return LTDC_LxCFBAR(layer); +} + +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 uint32_t ltdc_get_rgb888_from_rgb565(uint16_t rgb565) +{ + uint32_t rgb565_32 = (uint32_t)rgb565; + return ((((rgb565_32) & 0xF800) >> (11-8))/31)<<16 + | ((((rgb565_32) & 0x07E0) << (8-5))/63)<<8 + | ((((rgb565_32) & 0x001F) << (8-0))/31)<<0; +} + +/** @cond */ +#endif /* LIBOPENCM3_STM32_COMMON_LTDC_COMMON_F47_H_ */ +/** @endcond */ +/**@}*/ + |