Michael Sauer
1b0501179d
Docker-Build mit gcc-arm-none-eabi 4.9-2014q4 (statt Homebrew-Cask) verwendet, Dockerfile/tools/docker.sh dafür aus Task 13 vorgezogen. cmake/sdk.cmake schont gcc 4.9 (kennt -fcommon/-Wno-error=... nicht). Zwei zusätzliche SDK-Stubs (EarlyInit, pre_gpio_config) in src/sys/sdk_stubs.c ergänzt, siehe sdk/PATCHES.md.
188 lines
3.6 KiB
C
188 lines
3.6 KiB
C
/**************************************************************************//**
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* @file wm_lcd.c
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* @author
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* @version
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* @date
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* @brief
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*
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* Copyright (c) 2014 Winner Microelectronics Co., Ltd. All rights reserved.
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*****************************************************************************/
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#include "wm_lcd.h"
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#define RTC_CLK (32000UL)
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/**
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* @brief Initialize LCD Frame Counter
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* @param[in] freq LCD reference refresh frequency in Hz that will be used
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*/
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void tls_lcd_fresh_ratio(uint16_t freq)
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{
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uint8_t com_num;
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if (freq == 0)
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{
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freq = 60;
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}
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com_num = tls_bitband_read(HR_LCD_CR, LCD_CR_MODE_Pos) ? 4 : 8;
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LCD->FRAMECNT = RTC_CLK/(com_num * freq);
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}
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/**
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* @brief
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* Turn on or clear a segment
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*
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* @param[in] com
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* Which COM line to update
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*
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* @param[in] bit
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* Bit index of which field to change
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*
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* @param[in] enable
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* When one will set segment, when zero will clear segment
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*
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* @param[in] mode
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* when one max configuration is 4x20, when zero max configuration is 8x16
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*
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*/
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void tls_lcd_seg_set(int com, int bit, int on_off)
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{
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int mode;
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/** get the mode congfig when one max configuration is 4x20, when zero max configuration is 8x16 */
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mode = tls_bitband_read(HR_LCD_CR, LCD_CR_MODE_Pos);
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if (!mode && (com < 0 || com > 7) && (bit < 0 || bit > 15))
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{
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return ;
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}
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if (mode && (com < 0 || com > 3) && (bit < 0 || bit > 19))
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{
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return ;
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}
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switch(com)
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{
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/** COM0 */
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case 0:
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tls_bitband_write(HR_LCD_COM0_1_SEG, bit, on_off);
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break;
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/** COM1 */
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case 1:
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if (mode)
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tls_bitband_write(HR_LCD_COM2_3_SEG, bit, on_off);
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else
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{
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bit += 16;
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tls_bitband_write(HR_LCD_COM0_1_SEG, bit, on_off);
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}
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break;
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/** COM2 */
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case 2:
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if (mode)
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tls_bitband_write(HR_LCD_COM4_5_SEG, bit, on_off);
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else
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tls_bitband_write(HR_LCD_COM2_3_SEG, bit, on_off);
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break;
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/** COM3 */
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case 3:
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if (mode)
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tls_bitband_write(HR_LCD_COM6_7_SEG, bit, on_off);
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else
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{
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bit += 16;
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tls_bitband_write(HR_LCD_COM2_3_SEG, bit, on_off);
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}
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break;
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/** COM4 */
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case 4:
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tls_bitband_write(HR_LCD_COM4_5_SEG, bit, on_off);
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break;
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/** COM5 */
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case 5:
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bit += 16;
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tls_bitband_write(HR_LCD_COM4_5_SEG, bit, on_off);
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break;
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/** COM6 */
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case 6:
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tls_bitband_write(HR_LCD_COM6_7_SEG, bit, on_off);
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break;
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/** COM7 */
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case 7:
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bit += 16;
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tls_bitband_write(HR_LCD_COM6_7_SEG, bit, on_off);
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break;
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default:
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break;
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}
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}
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/**
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* @brief enable or disable the LCD module gpio
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*
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* @param[in] the config value per bit for one of LCD gpios, set 1 gpio output enable ,0 output disabled
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*
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*/
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void tls_lcd_io_config(unsigned int val)
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{
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tls_reg_write32(HR_LCD_IO_EN, val);
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}
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/**
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* @brief
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* select the voltage of LCD module
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*
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*/
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void tls_lcd_vlcd_sel(LCD_VlcdDef vlcd)
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{
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LCD->CTRL &= ~LCD_VLCD_MASK;
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LCD->CTRL |= vlcd;
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}
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/**
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* @brief
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* set the duty of LCD module
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*
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*/
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void tls_lcd_duty_set(LCD_DutyDef duty)
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{
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LCD->CTRL &= ~LCD_DUTY_MASK;
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LCD->CTRL |= duty;
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}
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/**
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* @brief
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* set the bias of LCD module
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*
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*/
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void tls_lcd_bias_set(LCD_BiasDef bias)
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{
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LCD->CTRL &= ~LCD_BIAS_MASK;
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LCD->CTRL |= bias;
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}
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/**
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* @brief
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* initialize the lcd module
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*
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*/
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void tls_lcd_init(tls_lcd_options_t *opts)
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{
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LCD->CTRL = 0;
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LCD->CTRL = opts->mode | opts->bias | opts->duty | opts->vlcd | (1 << 12);
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tls_lcd_fresh_ratio(opts->fresh_rate);
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TLS_LCD_ENABLE(opts->enable);
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TLS_LCD_POWERDOWM(0);
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}
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