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Diffstat (limited to 'libopencm3/include/libopencm3/stm32/l1/lcd.h')
| -rw-r--r-- | libopencm3/include/libopencm3/stm32/l1/lcd.h | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/stm32/l1/lcd.h b/libopencm3/include/libopencm3/stm32/l1/lcd.h new file mode 100644 index 0000000..0a4b02b --- /dev/null +++ b/libopencm3/include/libopencm3/stm32/l1/lcd.h @@ -0,0 +1,231 @@ +/** @defgroup lcd_defines LCD Defines + * + * @ingroup STM32L1xx_defines + * + * @brief Defined Constants and Types for the STM32L1xx LCD Controller + * + * @version 1.0.0 + * + * @author @htmlonly © @endhtmlonly 2014 + * Nikolay Merinov <nikolay.merinov@member.fsf.org> + * + * @date 2 March 2014 + * + * LGPL License Terms @ref lgpl_license + * */ + +/* + * This file is part of the libopencm3 project. + * + * 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/>. + */ + +/**@{*/ +#ifndef LIBOPENCM3_LCD_H +#define LIBOPENCM3_LCD_H + +#include <libopencm3/stm32/memorymap.h> +#include <libopencm3/cm3/common.h> + +/* --- LCD registers ------------------------------------------------------ */ +/****************************************************************************/ +/** @defgroup lcd_reg_base LCD register base addresses +@ingroup lcd_defines +*/ +/* @{ */ +/* Control register */ +#define LCD_CR MMIO32(LCD_BASE + 0x00) +/* Frame control register */ +#define LCD_FCR MMIO32(LCD_BASE + 0x04) +/* Status register */ +#define LCD_SR MMIO32(LCD_BASE + 0x08) +/* Clear register */ +#define LCD_CLR MMIO32(LCD_BASE + 0x0C) +/* @} */ + +/* --- LCD display memory ------------------------------------------------- */ +/* Base address of display memory */ +#define LCD_RAM_BASE (LCD_BASE + 0x14) + +/* COM0 memory */ +#define LCD_RAM_COM0 MMIO64(LCD_RAM_BASE + 0x00) +/* COM1 memory */ +#define LCD_RAM_COM1 MMIO64(LCD_RAM_BASE + 0x08) +/* COM2 memory */ +#define LCD_RAM_COM2 MMIO64(LCD_RAM_BASE + 0x10) +/* COM3 memory */ +#define LCD_RAM_COM3 MMIO64(LCD_RAM_BASE + 0x18) +/* COM4 memory */ +#define LCD_RAM_COM4 MMIO64(LCD_RAM_BASE + 0x20) +/* COM5 memory */ +#define LCD_RAM_COM5 MMIO64(LCD_RAM_BASE + 0x28) +/* COM6 memory */ +#define LCD_RAM_COM6 MMIO64(LCD_RAM_BASE + 0x30) +/* COM7 memory */ +#define LCD_RAM_COM7 MMIO64(LCD_RAM_BASE + 0x38) + +/* --- LCD_CR values ------------------------------------------------------ */ +#define LCD_CR_LCDEN (1 << 0) +#define LCD_CR_VSEL (1 << 1) + +#define LCD_CR_DUTY_SHIFT 2 +#define LCD_CR_DUTY_MASK 0x7 +#define LCD_CR_DUTY_STATIC 0x0 +#define LCD_CR_DUTY_1_2 0x1 +#define LCD_CR_DUTY_1_3 0x2 +#define LCD_CR_DUTY_1_4 0x3 +#define LCD_CR_DUTY_1_8 0x4 + +#define LCD_CR_BIAS_SHIFT 5 +#define LCD_CR_BIAS_MASK 0x3 +#define LCD_CR_BIAS_1_4 0x0 +#define LCD_CR_BIAS_1_2 0x1 +#define LCD_CR_BIAS_1_3 0x2 + +#define LCD_CR_MUX_SEG (1 << 7) + +/* --- LCD_FCR values ------------------------------------------------------ */ +#define LCD_FCR_HD (1 << 0) +#define LCD_FCR_SOFIE (1 << 1) +#define LCD_FCR_UDDIE (1 << 3) + +#define LCD_FCR_PON_SHIFT 4 +#define LCD_FCR_PON_MASK 0x7 +#define LCD_FCR_PON_0 0x0 +#define LCD_FCR_PON_1 0x1 +#define LCD_FCR_PON_2 0x2 +#define LCD_FCR_PON_3 0x3 +#define LCD_FCR_PON_4 0x4 +#define LCD_FCR_PON_5 0x5 +#define LCD_FCR_PON_6 0x6 +#define LCD_FCR_PON_7 0x7 + +#define LCD_FCR_DEAD_SHIFT 7 +#define LCD_FCR_DEAD_MASK 0x7 +#define LCD_FCR_DEAD_NONE 0x0 +#define LCD_FCR_DEAD_1_PHASE 0x1 +#define LCD_FCR_DEAD_2_PHASE 0x2 +#define LCD_FCR_DEAD_3_PHASE 0x3 +#define LCD_FCR_DEAD_4_PHASE 0x4 +#define LCD_FCR_DEAD_5_PHASE 0x5 +#define LCD_FCR_DEAD_6_PHASE 0x6 +#define LCD_FCR_DEAD_7_PHASE 0x7 + +#define LCD_FCR_CC_SHIFT 10 +#define LCD_FCR_CC_MASK 0x7 +#define LCD_FCR_CC_0 0x0 +#define LCD_FCR_CC_1 0x1 +#define LCD_FCR_CC_2 0x2 +#define LCD_FCR_CC_3 0x3 +#define LCD_FCR_CC_4 0x4 +#define LCD_FCR_CC_5 0x5 +#define LCD_FCR_CC_6 0x6 +#define LCD_FCR_CC_7 0x7 + +#define LCD_FCR_BLINKF_SHIFT 13 +#define LCD_FCR_BLINKF_MASK 0x7 +#define LCD_FCR_BLINKF_8 0x0 +#define LCD_FCR_BLINKF_16 0x1 +#define LCD_FCR_BLINKF_32 0x2 +#define LCD_FCR_BLINKF_64 0x3 +#define LCD_FCR_BLINKF_128 0x4 +#define LCD_FCR_BLINKF_256 0x5 +#define LCD_FCR_BLINKF_512 0x6 +#define LCD_FCR_BLINKF_1024 0x7 + +#define LCD_FCR_BLINK_SHIFT 16 +#define LCD_FCR_BLINK_MASK 0x3 +#define LCD_FCR_BLINK_DISABLE 0x0 +#define LCD_FCR_BLINK_SEG0_COM0_ENABLE 0x1 +#define LCD_FCR_BLINK_SEG0_ENABLE 0x2 +#define LCD_FCR_BLINK_ALL_ENABLE 0x3 + +#define LCD_FCR_DIV_SHIFT 18 +#define LCD_FCR_DIV_MASK 0xF +#define LCD_FCR_DIV_16 0x0 +#define LCD_FCR_DIV_17 0x1 +#define LCD_FCR_DIV_18 0x2 +#define LCD_FCR_DIV_19 0x3 +#define LCD_FCR_DIV_20 0x4 +#define LCD_FCR_DIV_21 0x5 +#define LCD_FCR_DIV_22 0x6 +#define LCD_FCR_DIV_23 0x7 +#define LCD_FCR_DIV_24 0x8 +#define LCD_FCR_DIV_25 0x9 +#define LCD_FCR_DIV_26 0xA +#define LCD_FCR_DIV_27 0xB +#define LCD_FCR_DIV_28 0xC +#define LCD_FCR_DIV_29 0xD +#define LCD_FCR_DIV_30 0xE +#define LCD_FCR_DIV_31 0xF + +#define LCD_FCR_PS_SHIFT 22 +#define LCD_FCR_PS_MASK 0xF +#define LCD_FCR_PS_1 0x0 +#define LCD_FCR_PS_2 0x1 +#define LCD_FCR_PS_4 0x2 +#define LCD_FCR_PS_8 0x3 +#define LCD_FCR_PS_16 0x4 +#define LCD_FCR_PS_32 0x5 +#define LCD_FCR_PS_64 0x6 +#define LCD_FCR_PS_128 0x7 +#define LCD_FCR_PS_256 0x8 +#define LCD_FCR_PS_512 0x9 +#define LCD_FCR_PS_1024 0xA +#define LCD_FCR_PS_2048 0xB +#define LCD_FCR_PS_4096 0xC +#define LCD_FCR_PS_8192 0xD +#define LCD_FCR_PS_16384 0xE +#define LCD_FCR_PS_32768 0xF + +/* --- LCD_SR values ------------------------------------------------------ */ +#define LCD_SR_ENS (1 << 0) +#define LCD_SR_SOF (1 << 1) +#define LCD_SR_UDR (1 << 2) +#define LCD_SR_UDD (1 << 3) +#define LCD_SR_RDY (1 << 4) +#define LCD_SR_FCRSF (1 << 5) + +/* --- LCD_CLR values ----------------------------------------------------- */ +#define LCD_CLR_SOFC (1 << 1) +#define LCD_CLR_UDDC (1 << 3) + +/* --- Function prototypes ------------------------------------------------- */ + +BEGIN_DECLS + +void lcd_enable(void); +void lcd_update(void); + +void lcd_wait_for_lcd_enabled(void); +void lcd_wait_for_step_up_ready(void); +void lcd_wait_for_update_ready(void); + +int lcd_is_enabled(void); +int lcd_is_step_up_ready(void); +int lcd_is_for_update_ready(void); + +void lcd_set_contrast(uint8_t contrast); +void lcd_set_bias(uint8_t bias); +void lcd_set_duty(uint8_t duty); +void lcd_set_prescaler(uint8_t ps); +void lcd_set_divider(uint8_t div); +void lcd_enable_segment_multiplexing(void); +void lcd_disable_segment_multiplexing(void); +void lcd_set_refresh_frequency(uint32_t frequency); + +END_DECLS + +#endif +/**@}*/ |