From: asterix Date: Wed, 19 May 2010 12:28:12 +0000 (+0000) Subject: Clean up lcd 32122a driver and put into bertos driver. X-Git-Tag: 2.5.0~198 X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=0c3cf4949fefd3335021e3e0311011db3f32f59b;p=bertos.git Clean up lcd 32122a driver and put into bertos driver. git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3719 38d2e660-2303-0410-9eaa-f027e97ec537 --- diff --git a/bertos/cpu/avr/drv/lcd_32122a_avr.c b/bertos/cpu/avr/drv/lcd_32122a_avr.c deleted file mode 100644 index 63d7329f..00000000 --- a/bertos/cpu/avr/drv/lcd_32122a_avr.c +++ /dev/null @@ -1,529 +0,0 @@ -/** - * \file - * - * - * \brief Displaytech 32122A LCD driver - * - * \version $Id$ - * - * \author Bernie Innocenti - * \author Stefano Fedrigo - * - * notest: avr - * - */ - -#include "lcd_32122a_avr.h" - -#include "cfg/cfg_lcd.h" - -#include /* BV() */ -#include -#include - -#include -#include - -#include -#include - -#include - -#include -#include - -#warning TODO:Refactor this module. Split code to hw file. - -/* Configuration sanity checks */ -#if !defined(CONFIG_LCD_SOFTINT_REFRESH) || (CONFIG_LCD_SOFTINT_REFRESH != 0 && CONFIG_LCD_SOFTINT_REFRESH != 1) - #error CONFIG_LCD_SOFTINT_REFRESH must be defined to either 0 or 1 -#endif -#if !defined(CONFIG_LCD_SOFTINT_REFRESH) || (CONFIG_LCD_SOFTINT_REFRESH != 0 && CONFIG_LCD_SOFTINT_REFRESH != 1) - #error CONFIG_LCD_SOFTINT_REFRESH must be defined to either 0 or 1 -#endif - - -#if CONFIG_LCD_SOFTINT_REFRESH - - /** Interval between softint driven lcd refresh */ -# define LCD_REFRESH_INTERVAL 20 /* 20ms -> 50fps */ - -#endif /* CONFIG_LCD_SOFTINT_REFRESH */ - -/** Number of LCD pages */ -#define LCD_PAGES 4 - -/** Width of an LCD page */ -#define LCD_PAGESIZE (LCD_WIDTH / 2) - -/** - * \name LCD I/O pins/ports - * @{ - */ -#define LCD_PF_DB0 PF4 -#define LCD_PF_DB1 PF5 -#define LCD_PF_DB2 PF6 -#define LCD_PF_DB3 PF7 -#define LCD_PD_DB4 PD4 -#define LCD_PD_DB5 PD5 -#define LCD_PD_DB6 PD6 -#define LCD_PD_DB7 PD7 -#define LCD_PB_A0 PB0 -#define LCD_PE_RW PE7 -#define LCD_PE_E1 PE2 -#define LCD_PE_E2 PE6 -/*@}*/ - -/** - * \name DB high nibble (DB[4-7]) - * @{ - */ -#define LCD_DATA_HI_PORT PORTD -#define LCD_DATA_HI_PIN PIND -#define LCD_DATA_HI_DDR DDRD -#define LCD_DATA_HI_SHIFT 0 -#define LCD_DATA_HI_MASK 0xF0 -/*@}*/ - -/** - * \name DB low nibble (DB[0-3]) - * @{ - */ -#define LCD_DATA_LO_PORT PORTF -#define LCD_DATA_LO_PIN PINF -#define LCD_DATA_LO_DDR DDRF -#define LCD_DATA_LO_SHIFT 4 -#define LCD_DATA_LO_MASK 0xF0 -/*@}*/ - -/** - * \name LCD bus control macros - * @{ - */ -#define LCD_CLR_A0 (PORTB &= ~BV(LCD_PB_A0)) -#define LCD_SET_A0 (PORTB |= BV(LCD_PB_A0)) -#define LCD_CLR_RD (PORTE &= ~BV(LCD_PE_RW)) -#define LCD_SET_RD (PORTE |= BV(LCD_PE_RW)) -#define LCD_CLR_E1 (PORTE &= ~BV(LCD_PE_E1)) -#define LCD_SET_E1 (PORTE |= BV(LCD_PE_E1)) -#define LCD_CLR_E2 (PORTE &= ~BV(LCD_PE_E2)) -#define LCD_SET_E2 (PORTE |= BV(LCD_PE_E2)) -#define LCD_SET_E(x) (PORTE |= (x)) -#define LCD_CLR_E(x) (PORTE &= ~(x)) -/*@}*/ - -/** - * \name Chip select bits for LCD_SET_E() - * @{ - */ -#define LCDF_E1 (BV(LCD_PE_E1)) -#define LCDF_E2 (BV(LCD_PE_E2)) -/*@}*/ - -/** Read from the LCD data bus (DB[0-7]) */ -#define LCD_READ ( \ - ((LCD_DATA_LO_PIN & LCD_DATA_LO_MASK) >> LCD_DATA_LO_SHIFT) | \ - ((LCD_DATA_HI_PIN & LCD_DATA_HI_MASK) >> LCD_DATA_HI_SHIFT) \ - ) - -/** Write to the LCD data bus (DB[0-7]) */ -#define LCD_WRITE(d) \ - do { \ - LCD_DATA_LO_PORT = (LCD_DATA_LO_PORT & ~LCD_DATA_LO_MASK) | (((d)<-- - */ - LCD_WRITE(cmd); - //LCD_DB_OUT; - LCD_CLR_A0; - LCD_SET_E(chip); - LCD_DELAY_WRITE; - LCD_CLR_E(chip); - LCD_SET_A0; - //LCD_DB_IN; -} - - -static inline uint8_t lcd_32122_read(uint8_t chip) -{ - uint8_t data; - - WAIT_LCD; - - /** - * \code - * __________________ - * A0 __/ \__ - * ____________ - * R/W __/ \__ - * _______ - * E1 _____/ \____ - * - * DATA -------<=====>---- - * - * \endcode - */ - LCD_DB_IN; - //LCD_SET_A0; - LCD_SET_RD; - LCD_SET_E(chip); - LCD_DELAY_READ; - data = LCD_READ; - LCD_CLR_E(chip); - LCD_CLR_RD; - //LCD_CLR_A0; - LCD_DB_OUT; - - return data; -} - -static inline void lcd_32122_write(uint8_t c, uint8_t chip) -{ - WAIT_LCD; - - /** - * \code - * __________________ - * A0 ___/ \___ - * - * R/W __________________ - * ______ - * E1 _____/ \_____ - * - * DATA -<==============>- - * - * \endcode - */ - LCD_WRITE(c); - //LCD_DB_OUT; - //LCD_SET_A0; - LCD_SET_E(chip); - LCD_DELAY_WRITE; - LCD_CLR_E(chip); - //LCD_CLR_A0; - //LCD_DB_IN; -} - -static void lcd_32122_clear(void) -{ - uint8_t page, j; - - for (page = 0; page < LCD_PAGES; ++page) - { - lcd_32122_cmd(LCD_CMD_COLADDR | 0, LCDF_E1 | LCDF_E2); - lcd_32122_cmd(LCD_CMD_PAGEADDR | page, LCDF_E1 | LCDF_E2); - for (j = 0; j < LCD_PAGESIZE; j++) - lcd_32122_write(0, LCDF_E1 | LCDF_E2); - } -} - - -static void lcd_32122_writeRaster(const uint8_t *raster) -{ - uint8_t page, rows; - const uint8_t *right_raster; - - CHECK_WALL(wall_before_raster); - CHECK_WALL(wall_after_raster); - - for (page = 0; page < LCD_PAGES; ++page) - { - lcd_32122_cmd(LCD_CMD_PAGEADDR | page, LCDF_E1 | LCDF_E2); - lcd_32122_cmd(LCD_CMD_COLADDR | 0, LCDF_E1 | LCDF_E2); - - /* Super optimized lamer loop */ - right_raster = raster + LCD_PAGESIZE; - rows = LCD_PAGESIZE; - do - { - lcd_32122_write(*raster++, LCDF_E1); - lcd_32122_write(*right_raster++, LCDF_E2); - } - while (--rows); - raster = right_raster; - } -} - -#if CONFIG_LCD_SOFTINT_REFRESH - -static void lcd_32122_refreshSoftint(void) -{ - lcd_blit_bitmap(&lcd_bitmap); - timer_add(lcd_refresh_timer); -} - -#endif /* CONFIG_LCD_SOFTINT_REFRESH */ - -/** - * Set LCD contrast PWM. - */ -void lcd_32122_setPwm(int duty) -{ - ASSERT(duty >= LCD_MIN_PWM); - ASSERT(duty <= LCD_MAX_PWM); - - OCR3C = duty; -} - -/** - * Update the LCD display with data from the provided bitmap. - */ -void lcd_32122_blitBitmap(Bitmap *bm) -{ - MOD_CHECK(lcd); - lcd_32122_writeRaster(bm->raster); -} - - -/** - * Initialize LCD subsystem. - * - * \note The PWM used for LCD contrast is initialized in drv/pwm.c - * because it is the same PWM used for output attenuation. - */ -void lcd_32122_init(void) -{ - MOD_CHECK(timer); - - // FIXME: interrupts are already disabled when we get here?!? - cpu_flags_t flags; - IRQ_SAVE_DISABLE(flags); - - PORTB |= BV(LCD_PB_A0); - DDRB |= BV(LCD_PB_A0); - - PORTE &= ~(BV(LCD_PE_RW) | BV(LCD_PE_E1) | BV(LCD_PE_E2)); - DDRE |= BV(LCD_PE_RW) | BV(LCD_PE_E1) | BV(LCD_PE_E2); - -/* LCD hw reset - LCD_RESET_PORT |= BV(LCD_RESET_BIT); - LCD_RESET_DDR |= BV(LCD_RESET_BIT); - LCD_DELAY_WRITE; - LCD_DELAY_WRITE; - LCD_RESET_PORT &= ~BV(LCD_RESET_BIT); - LCD_DELAY_WRITE; - LCD_DELAY_WRITE; - LCD_RESET_PORT |= BV(LCD_RESET_BIT); -*/ - /* - * Data bus is in output state most of the time: - * LCD r/w functions assume it is left in output state - */ - LCD_DB_OUT; - - // Wait for RST line to stabilize at Vcc. - IRQ_ENABLE; - timer_delay(20); - IRQ_SAVE_DISABLE(flags); - - lcd_32122_cmd(LCD_CMD_RESET, LCDF_E1 | LCDF_E2); - lcd_32122_cmd(LCD_CMD_DISPLAY_ON, LCDF_E1 | LCDF_E2); - lcd_32122_cmd(LCD_CMD_STARTLINE | 0, LCDF_E1 | LCDF_E2); - - /* Initialize anti-corruption walls for raster */ - INIT_WALL(wall_before_raster); - INIT_WALL(wall_after_raster); - - IRQ_RESTORE(flags); - - lcd_32122_clear(); - lcd_32122_setPwm(LCD_DEF_PWM); - - gfx_bitmapInit(&lcd_bitmap, lcd_raster, LCD_WIDTH, LCD_HEIGHT); - gfx_bitmapClear(&lcd_bitmap); - -#if CONFIG_LCD_SOFTINT_REFRESH - - /* Init IRQ driven LCD refresh */ - lcd_refresh_timer = timer_new(); - ASSERT(lcd_refresh_timer != NULL); - INITEVENT_INT(&lcd_refresh_timer->expire, (Hook)lcd_refresh_softint, 0); - lcd_refresh_timer->delay = LCD_REFRESH_INTERVAL; - timer_add(lcd_refresh_timer); - -#endif /* CONFIG_LCD_SOFTINT_REFRESH */ - - MOD_INIT(lcd); -} - diff --git a/bertos/cpu/avr/drv/lcd_32122a_avr.h b/bertos/cpu/avr/drv/lcd_32122a_avr.h deleted file mode 100644 index bcd02c5f..00000000 --- a/bertos/cpu/avr/drv/lcd_32122a_avr.h +++ /dev/null @@ -1,63 +0,0 @@ -/** - * \file - * - * - * \version $Id$ - * - * \author Bernie Innocenti - * \author Stefano Fedrigo - * - * \brief Displaytech 32122A LCD driver - */ - -#ifndef LCD_32122A_AVR_H -#define LCD_32122A_AVR_H - -/* Predefined LCD PWM contrast values */ -#define LCD_DEF_PWM 145 -#define LCD_MAX_PWM 505 -#define LCD_MIN_PWM 130 - -/* Display bitmap dims */ -#define LCD_WIDTH 122 -#define LCD_HEIGHT 32 - -/* fwd decl */ -struct Bitmap; - -extern struct Bitmap lcd_bitmap; - -void lcd_32122_init(void); -void lcd_32122_setPwm(int duty); -void lcd_32122_blitBitmap(struct Bitmap *bm); - -#endif /* LCD_32122A_AVR_H */ diff --git a/bertos/drv/lcd_32122a.c b/bertos/drv/lcd_32122a.c new file mode 100644 index 00000000..7c3499de --- /dev/null +++ b/bertos/drv/lcd_32122a.c @@ -0,0 +1,333 @@ +/** + * \file + * + * + * \brief Displaytech 32122A LCD driver + * + * \author Bernie Innocenti + * \author Stefano Fedrigo + * + */ + + +#include "lcd_32122a.h" + +#include "hw/hw_lcd_32122a.h" + +#include "cfg/cfg_lcd_32122a.h" + +#include /* BV() */ +#include +#include + +#include + +#include +#include + +#include +#include + + +/** Number of LCD pages */ +#define LCD_PAGES 4 + +/** Width of an LCD page */ +#define LCD_PAGESIZE (LCD_WIDTH / 2) + +/** + * \name 32122A Commands + * @{ + */ +#define LCD_CMD_DISPLAY_ON 0xAF +#define LCD_CMD_DISPLAY_OFF 0xAE +#define LCD_CMD_STARTLINE 0xC0 +#define LCD_CMD_PAGEADDR 0xB8 +#define LCD_CMD_COLADDR 0x00 +#define LCD_CMD_ADC_LEFT 0xA1 +#define LCD_CMD_ADC_RIGHT 0xA0 +#define LCD_CMD_STATIC_OFF 0xA4 +#define LCD_CMD_STATIC_ON 0xA5 +#define LCD_CMD_DUTY_32 0xA9 +#define LCD_CMD_DUTY_16 0xA8 +#define LCD_CMD_RMW_ON 0xE0 +#define LCD_CMD_RMW_OFF 0xEE +#define LCD_CMD_RESET 0xE2 +/*@}*/ + + +/* Status flags */ +#define LCDF_BUSY BV(7) + +#if CONFIG_LCD_WAIT + /** + * \code + * __ __ + * RS __\____________/__ + * ____________ + * R/W __/ \__ + * _______ + * E1 _____/ \____ + * ______ ____ + * DATA X/ \====/ + * + * \endcode + */ + #define WAIT_LCD \ + do { \ + uint8_t status; \ + LCD_DB_IN; \ + do { \ + LCD_SET_RD; \ + LCD_CLR_A0; \ + LCD_SET_E1; \ + LCD_DELAY_READ; \ + status = LCD_READ; \ + LCD_CLR_E1; \ + LCD_SET_A0; \ + LCD_CLR_RD; \ + } while (status & LCDF_BUSY); \ + LCD_DB_OUT; \ + } while (0) +#else /* CONFIG_LCD_WAIT */ + #define WAIT_LCD do {} while(0) +#endif /* CONFIG_LCD_WAIT */ + + +/** + * Raster buffer to draw into. + * + * Bits in the bitmap bytes have vertical orientation, + * as required by the LCD driver. + */ +static uint8_t lcd_raster[RAST_SIZE(LCD_WIDTH, LCD_HEIGHT)]; + +/** Default LCD bitmap */ +struct Bitmap lcd_bitmap; + + +#if CONFIG_LCD_SOFTINT_REFRESH + +/** Timer for regular LCD refresh */ +static Timer lcd_refresh_timer; + +#endif /* CONFIG_LCD_SOFTINT_REFRESH */ + + +INLINE void lcd_32122_cmd(uint8_t cmd, uint8_t chip) +{ + WAIT_LCD; + + /* __ __ + * A0 __\____________/__ + * + * R/W __________________ + * ______ + * E1 _____/ \_____ + * + * DATA --<============>-- + */ + LCD_WRITE(cmd); + //LCD_DB_OUT; + LCD_CLR_A0; + LCD_SET_E(chip); + LCD_DELAY_WRITE; + LCD_CLR_E(chip); + LCD_SET_A0; + //LCD_DB_IN; + +} + + +INLINE uint8_t lcd_32122_read(uint8_t chip) +{ + uint8_t data; + + WAIT_LCD; + + /** + * \code + * __________________ + * A0 __/ \__ + * ____________ + * R/W __/ \__ + * _______ + * E1 _____/ \____ + * + * DATA -------<=====>---- + * + * \endcode + */ + LCD_DB_IN; + //LCD_SET_A0; + LCD_SET_RD; + LCD_SET_E(chip); + LCD_DELAY_READ; + data = LCD_READ; + LCD_CLR_E(chip); + LCD_CLR_RD; + //LCD_CLR_A0; + LCD_DB_OUT; + + return data; +} + +INLINE void lcd_32122_write(uint8_t c, uint8_t chip) +{ + WAIT_LCD; + + /** + * \code + * __________________ + * A0 ___/ \___ + * + * R/W __________________ + * ______ + * E1 _____/ \_____ + * + * DATA -<==============>- + * + * \endcode + */ + LCD_WRITE(c); + //LCD_DB_OUT; + //LCD_SET_A0; + LCD_SET_E(chip); + LCD_DELAY_WRITE; + LCD_CLR_E(chip); + //LCD_CLR_A0; + //LCD_DB_IN; +} + +static void lcd_32122_clear(void) +{ + uint8_t page, j; + + for (page = 0; page < LCD_PAGES; ++page) + { + lcd_32122_cmd(LCD_CMD_COLADDR, LCDF_E1 | LCDF_E2); + lcd_32122_cmd(LCD_CMD_PAGEADDR | page, LCDF_E1 | LCDF_E2); + for (j = 0; j < LCD_PAGESIZE; j++) + lcd_32122_write(0, LCDF_E1 | LCDF_E2); + } +} + + +static void lcd_32122_writeRaster(const uint8_t *raster) +{ + uint8_t page, rows; + const uint8_t *right_raster; + + for (page = 0; page < LCD_PAGES; ++page) + { + lcd_32122_cmd(LCD_CMD_PAGEADDR | page, LCDF_E1 | LCDF_E2); + lcd_32122_cmd(LCD_CMD_COLADDR | 0, LCDF_E1 | LCDF_E2); + + /* Super optimized lamer loop */ + right_raster = raster + LCD_PAGESIZE; + rows = LCD_PAGESIZE; + do + { + lcd_32122_write(*raster++, LCDF_E1); + lcd_32122_write(*right_raster++, LCDF_E2); + } + while (--rows); + raster = right_raster; + } +} + +#if CONFIG_LCD_SOFTINT_REFRESH + +static void lcd_32122_refreshSoftint(void) +{ + lcd_32122_blitBitmap(&lcd_bitmap); + timer_setDelay(&lcd_refresh_timer, ms_to_ticks(CONFIG_LCD_REFRESH)); + timer_add(&lcd_refresh_timer); +} + +#endif /* CONFIG_LCD_SOFTINT_REFRESH */ + +/** + * Set LCD contrast PWM. + */ +void lcd_32122_setPwm(int duty) +{ + ASSERT(duty >= LCD_MIN_PWM); + ASSERT(duty <= LCD_MAX_PWM); + + pwm_setDuty(LCD_PWM_CH, duty); + pwm_enable(LCD_PWM_CH, true); +} + +/** + * Update the LCD display with data from the provided bitmap. + */ +void lcd_32122_blitBitmap(Bitmap *bm) +{ + lcd_32122_writeRaster(bm->raster); +} + + +/** + * Initialize LCD subsystem. + * + * \note The PWM used for LCD contrast is initialized in drv/pwm.c + * because it is the same PWM used for output attenuation. + */ +void lcd_32122_init(void) +{ + MOD_CHECK(timer); + + pwm_init(); + + lcd_32122a_hw_bus_init(); + LCD_32122_RESET(); + + lcd_32122_cmd(LCD_CMD_RESET, LCDF_E1 | LCDF_E2); + lcd_32122_cmd(LCD_CMD_DISPLAY_ON, LCDF_E1 | LCDF_E2); + lcd_32122_cmd(LCD_CMD_STARTLINE | 0, LCDF_E1 | LCDF_E2); + + + lcd_32122_clear(); + lcd_32122_setPwm(LCD_DEF_PWM); + + gfx_bitmapInit(&lcd_bitmap, lcd_raster, LCD_WIDTH, LCD_HEIGHT); gfx_bitmapClear(&lcd_bitmap); + +#if CONFIG_LCD_SOFTINT_REFRESH + /* Init IRQ driven LCD refresh */ + timer_setSoftint(&lcd_refresh_timer, (Hook)lcd_32122_refreshSoftint, 0); + timer_setDelay(&lcd_refresh_timer, ms_to_ticks(CONFIG_LCD_REFRESH)); + timer_add(&lcd_refresh_timer); +#endif /* CONFIG_LCD_SOFTINT_REFRESH */ + +} + diff --git a/bertos/drv/lcd_32122a.h b/bertos/drv/lcd_32122a.h new file mode 100644 index 00000000..e6c040ad --- /dev/null +++ b/bertos/drv/lcd_32122a.h @@ -0,0 +1,61 @@ +/** + * \file + * + * + * \author Bernie Innocenti + * \author Stefano Fedrigo + * + * \brief Displaytech 32122A LCD driver + * + * $WIZ$ module_name = "lcd_32122a" + * $WIZ$ module_hw = "bertos/hw/hw_lcd_32122a.h" + * $WIZ$ module_configuration = "bertos/cfg/cfg_lcd_32122a.h" + * $WIZ$ module_depends = "timer", "pwm" + */ + +#ifndef DRV_LCD_32122A_H +#define DRV_LCD_32122A_H + +/* Display bitmap dims */ +#define LCD_WIDTH 122 +#define LCD_HEIGHT 32 + +#warning __FILTER_NEXT_WARNING__ +#warning this drive is untested.. + +extern struct Bitmap lcd_bitmap; + +void lcd_32122_init(void); +void lcd_32122_setPwm(int duty); +void lcd_32122_blitBitmap(struct Bitmap *bm); + +#endif /* DRV_LCD_32122A_H */