diff mbox

[U-Boot,2/4] video: Drop the sed156x driver

Message ID 1501822610-4374-2-git-send-email-bmeng.cn@gmail.com
State Accepted
Commit 5ec94cdf8ead398135dfdd30b241afd4b5ee8b32
Delegated to: Anatolij Gustschin
Headers show

Commit Message

Bin Meng Aug. 4, 2017, 4:56 a.m. UTC
This is not used in U-Boot.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---

 drivers/video/Makefile  |   1 -
 drivers/video/sed156x.c | 546 ------------------------------------------------
 include/sed156x.h       |  26 ---
 3 files changed, 573 deletions(-)
 delete mode 100644 drivers/video/sed156x.c
 delete mode 100644 include/sed156x.h

Comments

Anatolij Gustschin Aug. 7, 2017, 4:18 p.m. UTC | #1
On Thu,  3 Aug 2017 21:56:48 -0700
Bin Meng bmeng.cn@gmail.com wrote:

> This is not used in U-Boot.
> 
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
> 
>  drivers/video/Makefile  |   1 -
>  drivers/video/sed156x.c | 546 ------------------------------------------------
>  include/sed156x.h       |  26 ---
>  3 files changed, 573 deletions(-)
>  delete mode 100644 drivers/video/sed156x.c
>  delete mode 100644 include/sed156x.h

applied to u-boot-video/master, thanks!

--
Anatolij
diff mbox

Patch

diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 2ef26e8..046f0b9 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -33,7 +33,6 @@  obj-$(CONFIG_SCF0403_LCD) += scf0403_lcd.o
 obj-$(CONFIG_S6E8AX0) += s6e8ax0.o
 obj-$(CONFIG_S6E63D6) += s6e63d6.o
 obj-$(CONFIG_LD9040) += ld9040.o
-obj-$(CONFIG_SED156X) += sed156x.o
 obj-$(CONFIG_VIDEO_BCM2835) += bcm2835.o
 obj-$(CONFIG_VIDEO_COREBOOT) += coreboot.o
 obj-$(CONFIG_VIDEO_CT69000) += ct69000.o videomodes.o
diff --git a/drivers/video/sed156x.c b/drivers/video/sed156x.c
deleted file mode 100644
index 2c906ec..0000000
--- a/drivers/video/sed156x.c
+++ /dev/null
@@ -1,546 +0,0 @@ 
-/*
- * (C) Copyright 2003
- *
- * Pantelis Antoniou <panto@intracom.gr>
- * Intracom S.A.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <watchdog.h>
-
-#include <sed156x.h>
-
-/* configure according to the selected display */
-#if defined(CONFIG_SED156X_PG12864Q)
-#define LCD_WIDTH	128
-#define LCD_HEIGHT	64
-#define LCD_LINES	64
-#define LCD_PAGES	9
-#define LCD_COLUMNS	132
-#else
-#error Unsupported SED156x configuration
-#endif
-
-/* include the font data */
-#include <video_font.h>
-
-#if VIDEO_FONT_WIDTH != 8 || VIDEO_FONT_HEIGHT != 16
-#error Expecting VIDEO_FONT_WIDTH == 8 && VIDEO_FONT_HEIGHT == 16
-#endif
-
-#define LCD_BYTE_WIDTH		(LCD_WIDTH / 8)
-#define VIDEO_FONT_BYTE_WIDTH	(VIDEO_FONT_WIDTH / 8)
-
-#define LCD_TEXT_WIDTH	(LCD_WIDTH / VIDEO_FONT_WIDTH)
-#define LCD_TEXT_HEIGHT (LCD_HEIGHT / VIDEO_FONT_HEIGHT)
-
-#define LCD_BYTE_LINESZ		(LCD_BYTE_WIDTH * VIDEO_FONT_HEIGHT)
-
-const int sed156x_text_width = LCD_TEXT_WIDTH;
-const int sed156x_text_height = LCD_TEXT_HEIGHT;
-
-/**************************************************************************************/
-
-#define SED156X_SPI_RXD() (SED156X_SPI_RXD_PORT & SED156X_SPI_RXD_MASK)
-
-#define SED156X_SPI_TXD(x) \
-	do { \
-		if (x) \
-			SED156X_SPI_TXD_PORT |=	 SED156X_SPI_TXD_MASK; \
-		else \
-			SED156X_SPI_TXD_PORT &= ~SED156X_SPI_TXD_MASK; \
-	} while(0)
-
-#define SED156X_SPI_CLK(x) \
-	do { \
-		if (x) \
-			SED156X_SPI_CLK_PORT |=	 SED156X_SPI_CLK_MASK; \
-		else \
-			SED156X_SPI_CLK_PORT &= ~SED156X_SPI_CLK_MASK; \
-	} while(0)
-
-#define SED156X_SPI_CLK_TOGGLE() (SED156X_SPI_CLK_PORT ^= SED156X_SPI_CLK_MASK)
-
-#define SED156X_SPI_BIT_DELAY() /* no delay */
-
-#define SED156X_CS(x) \
-	do { \
-		if (x) \
-			SED156X_CS_PORT |=  SED156X_CS_MASK; \
-		else \
-			SED156X_CS_PORT &= ~SED156X_CS_MASK; \
-	} while(0)
-
-#define SED156X_A0(x) \
-	do { \
-		if (x) \
-			SED156X_A0_PORT |=  SED156X_A0_MASK; \
-		else \
-			SED156X_A0_PORT &= ~SED156X_A0_MASK; \
-	} while(0)
-
-/**************************************************************************************/
-
-/*** LCD Commands ***/
-
-#define LCD_ON		0xAF	/* Display ON					      */
-#define LCD_OFF		0xAE	/* Display OFF					      */
-#define LCD_LADDR	0x40	/* Display start line set + (6-bit) address	      */
-#define LCD_PADDR	0xB0	/* Page address set + (4-bit) page		      */
-#define LCD_CADRH	0x10	/* Column address set upper + (4-bit) column hi	      */
-#define LCD_CADRL	0x00	/* Column address set lower + (4-bit) column lo	      */
-#define LCD_ADC_NRM	0xA0	/* ADC select Normal				      */
-#define LCD_ADC_REV	0xA1	/* ADC select Reverse				      */
-#define LCD_DSP_NRM	0xA6	/* LCD display Normal				      */
-#define LCD_DSP_REV	0xA7	/* LCD display Reverse				      */
-#define LCD_DPT_NRM	0xA4	/* Display all points Normal			      */
-#define LCD_DPT_ALL	0xA5	/* Display all points ON			      */
-#define LCD_BIAS9	0xA2	/* LCD bias set 1/9				      */
-#define LCD_BIAS7	0xA3	/* LCD bias set 1/7				      */
-#define LCD_CAINC	0xE0	/* Read/modify/write				      */
-#define LCD_CAEND	0xEE	/* End						      */
-#define LCD_RESET	0xE2	/* Reset					      */
-#define LCD_C_NRM	0xC0	/* Common output mode select Normal direction	      */
-#define LCD_C_RVS	0xC8	/* Common output mode select Reverse direction	      */
-#define LCD_PWRMD	0x28	/* Power control set + (3-bit) mode		      */
-#define LCD_RESRT	0x20	/* V5 v. reg. int. resistor ratio set + (3-bit) ratio */
-#define LCD_EVSET	0x81	/* Electronic volume mode set + byte = (6-bit) volume */
-#define LCD_SIOFF	0xAC	/* Static indicator OFF				      */
-#define LCD_SION	0xAD	/* Static indicator ON + byte = (2-bit) mode	      */
-#define LCD_NOP		0xE3	/* NOP						      */
-#define LCD_TEST	0xF0	/* Test/Test mode reset (Note: *DO NOT USE*)	      */
-
-/*-------------------------------------------------------------------------------
-  Compound commands
-  -------------------------------------------------------------------------------
-  Command	Description			Commands
-  ----------	------------------------	-------------------------------------
-  POWS_ON	POWER SAVER ON command		LCD_OFF, LCD_D_ALL
-  POWS_OFF	POWER SAVER OFF command		LCD_D_NRM
-  SLEEPON	SLEEP mode			LCD_SIOFF, POWS_ON
-  SLEEPOFF	SLEEP mode cancel		LCD_D_NRM, LCD_SION, LCD_SIS_???
-  STDBYON	STAND BY mode			LCD_SION, POWS_ON
-  STDBYOFF	STAND BY mode cancel		LCD_D_NRM
-  -------------------------------------------------------------------------------*/
-
-/*** LCD various parameters ***/
-#define LCD_PPB		8	/* Pixels per byte (display is B/W, 1 bit per pixel) */
-
-/*** LCD Status byte masks ***/
-#define LCD_S_BUSY	0x80	/* Status Read - BUSY mask   */
-#define LCD_S_ADC	0x40	/* Status Read - ADC mask    */
-#define LCD_S_ONOFF	0x20	/* Status Read - ON/OFF mask */
-#define LCD_S_RESET	0x10	/* Status Read - RESET mask  */
-
-/*** LCD commands parameter masks ***/
-#define LCD_M_LADDR	0x3F	/* Display start line (6-bit) address mask	     */
-#define LCD_M_PADDR	0x0F	/* Page address (4-bit) page mask		     */
-#define LCD_M_CADRH	0x0F	/* Column address upper (4-bit) column hi mask	     */
-#define LCD_M_CADRL	0x0F	/* Column address lower (4-bit) column lo mask	     */
-#define LCD_M_PWRMD	0x07	/* Power control (3-bit) mode mask		     */
-#define LCD_M_RESRT	0x07	/* V5 v. reg. int. resistor ratio (3-bit) ratio mask */
-#define LCD_M_EVSET	0x3F	/* Electronic volume mode byte (6-bit) volume mask   */
-#define LCD_M_SION	0x03	/* Static indicator ON (2-bit) mode mask	     */
-
-/*** LCD Power control cirquits control masks ***/
-#define LCD_PWRBSTR	0x04	/* Power control mode - Booster cirquit ON	     */
-#define LCD_PWRVREG	0x02	/* Power control mode - Voltage regulator cirquit ON */
-#define LCD_PWRVFOL	0x01	/* Power control mode - Voltage follower cirquit ON  */
-
-/*** LCD Static indicator states ***/
-#define LCD_SIS_OFF	0x00	/* Static indicator register set - OFF state		 */
-#define LCD_SIS_BL	0x01	/* Static indicator register set - 1s blink state	 */
-#define LCD_SIS_RBL	0x02	/* Static indicator register set - .5s rapid blink state */
-#define LCD_SIS_ON	0x03	/* Static indicator register set - constantly on state	 */
-
-/*** LCD functions special parameters (commands) ***/
-#define LCD_PREVP	0x80	/* Page number for moving to previous */
-#define LCD_NEXTP	0x81	/* or next page */
-#define LCD_ERR_P	0xFF	/* Error in page number */
-
-/*** LCD initialization settings ***/
-#define LCD_BIAS	LCD_BIAS9	/* Bias: 1/9		      */
-#define LCD_ADCMODE	LCD_ADC_NRM	/* ADC mode: normal	      */
-#define LCD_COMDIR	LCD_C_NRM	/* Common output mode: normal */
-#define LCD_RRATIO	0		/* Resistor ratio: 0	      */
-#define LCD_CNTRST	0x1C		/* electronic volume: 1Ch     */
-#define LCD_POWERM	(LCD_PWRBSTR | LCD_PWRVREG | LCD_PWRVFOL)	/* Power mode: All on */
-
-/**************************************************************************************/
-
-static inline unsigned int sed156x_transfer(unsigned int val)
-{
-	unsigned int rx;
-	int b;
-
-	rx = 0; b = 8;
-	while (--b >= 0) {
-		SED156X_SPI_TXD(val & 0x80);
-		val <<= 1;
-		SED156X_SPI_CLK_TOGGLE();
-		SED156X_SPI_BIT_DELAY();
-		rx <<= 1;
-		if (SED156X_SPI_RXD())
-			rx |= 1;
-		SED156X_SPI_CLK_TOGGLE();
-		SED156X_SPI_BIT_DELAY();
-	}
-
-	return rx;
-}
-
-unsigned int sed156x_data_transfer(unsigned int val)
-{
-	unsigned int rx;
-
-	SED156X_SPI_CLK(1);
-	SED156X_CS(0);
-	SED156X_A0(1);
-
-	rx = sed156x_transfer(val);
-
-	SED156X_CS(1);
-
-	return rx;
-}
-
-void sed156x_data_block_transfer(const u8 *p, int size)
-{
-	SED156X_SPI_CLK(1);
-	SED156X_CS(0);
-	SED156X_A0(1);
-
-	while (--size >= 0)
-		sed156x_transfer(*p++);
-
-	SED156X_CS(1);
-}
-
-unsigned int sed156x_cmd_transfer(unsigned int val)
-{
-	unsigned int rx;
-
-	SED156X_SPI_CLK(1);
-	SED156X_CS(0);
-	SED156X_A0(0);
-
-	rx = sed156x_transfer(val);
-
-	SED156X_CS(1);
-	SED156X_A0(1);
-
-	return rx;
-}
-
-/******************************************************************************/
-
-static u8 hw_screen[LCD_PAGES][LCD_COLUMNS];
-static u8 last_hw_screen[LCD_PAGES][LCD_COLUMNS];
-static u8 sw_screen[LCD_BYTE_WIDTH * LCD_HEIGHT];
-
-void sed156x_sync(void)
-{
-	int i, j, last_page;
-	u8 *d;
-	const u8 *s, *e, *b, *r;
-	u8 v0, v1, v2, v3, v4, v5, v6, v7;
-
-	/* copy and rotate sw_screen to hw_screen */
-	for (i = 0; i < LCD_HEIGHT / 8; i++) {
-
-		d = &hw_screen[i][0];
-		s = &sw_screen[LCD_BYTE_WIDTH * 8 * i + LCD_BYTE_WIDTH - 1];
-
-		for (j = 0; j < LCD_WIDTH / 8; j++) {
-
-			v0 = s[0 * LCD_BYTE_WIDTH];
-			v1 = s[1 * LCD_BYTE_WIDTH];
-			v2 = s[2 * LCD_BYTE_WIDTH];
-			v3 = s[3 * LCD_BYTE_WIDTH];
-			v4 = s[4 * LCD_BYTE_WIDTH];
-			v5 = s[5 * LCD_BYTE_WIDTH];
-			v6 = s[6 * LCD_BYTE_WIDTH];
-			v7 = s[7 * LCD_BYTE_WIDTH];
-
-			d[0] =	((v7 & 0x01) << 7) |
-				((v6 & 0x01) << 6) |
-				((v5 & 0x01) << 5) |
-				((v4 & 0x01) << 4) |
-				((v3 & 0x01) << 3) |
-				((v2 & 0x01) << 2) |
-				((v1 & 0x01) << 1) |
-				 (v0 & 0x01)	   ;
-
-			d[1] =	((v7 & 0x02) << 6) |
-				((v6 & 0x02) << 5) |
-				((v5 & 0x02) << 4) |
-				((v4 & 0x02) << 3) |
-				((v3 & 0x02) << 2) |
-				((v2 & 0x02) << 1) |
-				((v1 & 0x02) << 0) |
-				((v0 & 0x02) >> 1) ;
-
-			d[2] =	((v7 & 0x04) << 5) |
-				((v6 & 0x04) << 4) |
-				((v5 & 0x04) << 3) |
-				((v4 & 0x04) << 2) |
-				((v3 & 0x04) << 1) |
-				 (v2 & 0x04)	   |
-				((v1 & 0x04) >> 1) |
-				((v0 & 0x04) >> 2) ;
-
-			d[3] =	((v7 & 0x08) << 4) |
-				((v6 & 0x08) << 3) |
-				((v5 & 0x08) << 2) |
-				((v4 & 0x08) << 1) |
-				 (v3 & 0x08)	   |
-				((v2 & 0x08) >> 1) |
-				((v1 & 0x08) >> 2) |
-				((v0 & 0x08) >> 3) ;
-
-			d[4] =	((v7 & 0x10) << 3) |
-				((v6 & 0x10) << 2) |
-				((v5 & 0x10) << 1) |
-				 (v4 & 0x10)	   |
-				((v3 & 0x10) >> 1) |
-				((v2 & 0x10) >> 2) |
-				((v1 & 0x10) >> 3) |
-				((v0 & 0x10) >> 4) ;
-
-			d[5] =	((v7 & 0x20) << 2) |
-				((v6 & 0x20) << 1) |
-				 (v5 & 0x20)	   |
-				((v4 & 0x20) >> 1) |
-				((v3 & 0x20) >> 2) |
-				((v2 & 0x20) >> 3) |
-				((v1 & 0x20) >> 4) |
-				((v0 & 0x20) >> 5) ;
-
-			d[6] =	((v7 & 0x40) << 1) |
-				 (v6 & 0x40)	   |
-				((v5 & 0x40) >> 1) |
-				((v4 & 0x40) >> 2) |
-				((v3 & 0x40) >> 3) |
-				((v2 & 0x40) >> 4) |
-				((v1 & 0x40) >> 5) |
-				((v0 & 0x40) >> 6) ;
-
-			d[7] =	 (v7 & 0x80)	   |
-				((v6 & 0x80) >> 1) |
-				((v5 & 0x80) >> 2) |
-				((v4 & 0x80) >> 3) |
-				((v3 & 0x80) >> 4) |
-				((v2 & 0x80) >> 5) |
-				((v1 & 0x80) >> 6) |
-				((v0 & 0x80) >> 7) ;
-
-			d += 8;
-			s--;
-		}
-	}
-
-	/* and now output only the differences */
-	for (i = 0; i < LCD_PAGES; i++) {
-
-		b = &hw_screen[i][0];
-		e = &hw_screen[i][LCD_COLUMNS];
-
-		d = &last_hw_screen[i][0];
-		s = b;
-
-		last_page = -1;
-
-		/* update only the differences */
-		do {
-			while (s < e && *s == *d) {
-				s++;
-				d++;
-			}
-			if (s == e)
-				break;
-			r = s;
-			while (s < e && *s != *d)
-				*d++ = *s++;
-
-			j = r - b;
-
-			if (i != last_page) {
-				sed156x_cmd_transfer(LCD_PADDR | i);
-				last_page = i;
-			}
-
-			sed156x_cmd_transfer(LCD_CADRH | ((j >> 4) & 0x0F));
-			sed156x_cmd_transfer(LCD_CADRL | (j & 0x0F));
-			sed156x_data_block_transfer(r, s - r);
-
-		} while (s < e);
-	}
-
-/********
-	for (i = 0; i < LCD_PAGES; i++) {
-		sed156x_cmd_transfer(LCD_PADDR | i);
-		sed156x_cmd_transfer(LCD_CADRH | 0);
-		sed156x_cmd_transfer(LCD_CADRL | 0);
-		sed156x_data_block_transfer(&hw_screen[i][0], LCD_COLUMNS);
-	}
-	memcpy(last_hw_screen, hw_screen, sizeof(last_hw_screen));
-********/
-}
-
-void sed156x_clear(void)
-{
-	memset(sw_screen, 0, sizeof(sw_screen));
-}
-
-void sed156x_output_at(int x, int y, const char *str, int size)
-{
-	int i, j;
-	u8 *p;
-	const u8 *s;
-
-	if ((unsigned int)y >= LCD_TEXT_HEIGHT || (unsigned int)x >= LCD_TEXT_WIDTH)
-		return;
-
-	p = &sw_screen[y * VIDEO_FONT_HEIGHT * LCD_BYTE_WIDTH + x * VIDEO_FONT_BYTE_WIDTH];
-
-	while (--size >= 0) {
-
-		s = &video_fontdata[((int)*str++ & 0xff) * VIDEO_FONT_BYTE_WIDTH * VIDEO_FONT_HEIGHT];
-		for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
-			for (j = 0; j < VIDEO_FONT_BYTE_WIDTH; j++)
-				*p++ = *s++;
-			p += LCD_BYTE_WIDTH - VIDEO_FONT_BYTE_WIDTH;
-		}
-		p -= (LCD_BYTE_LINESZ - VIDEO_FONT_BYTE_WIDTH);
-
-		if (x >= LCD_TEXT_WIDTH)
-			break;
-		x++;
-	}
-}
-
-void sed156x_reverse_at(int x, int y, int size)
-{
-	int i, j;
-	u8 *p;
-
-	if ((unsigned int)y >= LCD_TEXT_HEIGHT || (unsigned int)x >= LCD_TEXT_WIDTH)
-		return;
-
-	p = &sw_screen[y * VIDEO_FONT_HEIGHT * LCD_BYTE_WIDTH + x * VIDEO_FONT_BYTE_WIDTH];
-
-	while (--size >= 0) {
-
-		for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
-			for (j = 0; j < VIDEO_FONT_BYTE_WIDTH; j++, p++)
-				*p = ~*p;
-			p += LCD_BYTE_WIDTH - VIDEO_FONT_BYTE_WIDTH;
-		}
-		p -= (LCD_BYTE_LINESZ - VIDEO_FONT_BYTE_WIDTH);
-
-		if (x >= LCD_TEXT_WIDTH)
-			break;
-		x++;
-	}
-}
-
-void sed156x_scroll_line(void)
-{
-	memmove(&sw_screen[0],
-			&sw_screen[LCD_BYTE_LINESZ],
-			LCD_BYTE_WIDTH * (LCD_HEIGHT - VIDEO_FONT_HEIGHT));
-}
-
-void sed156x_scroll(int dx, int dy)
-{
-	u8 *p1 = NULL, *p2 = NULL, *p3 = NULL;	/* pacify gcc */
-	int adx, ady, i, sz;
-
-	adx = dx > 0 ? dx : -dx;
-	ady = dy > 0 ? dy : -dy;
-
-	/* overscroll? erase everything */
-	if (adx >= LCD_TEXT_WIDTH || ady >= LCD_TEXT_HEIGHT) {
-		memset(sw_screen, 0, sizeof(sw_screen));
-		return;
-	}
-
-	sz = LCD_BYTE_LINESZ * ady;
-	if (dy > 0) {
-		p1 = &sw_screen[0];
-		p2 = &sw_screen[sz];
-		p3 = &sw_screen[LCD_BYTE_WIDTH * LCD_HEIGHT - sz];
-	} else if (dy < 0) {
-		p1 = &sw_screen[sz];
-		p2 = &sw_screen[0];
-		p3 = &sw_screen[0];
-	}
-
-	if (ady > 0) {
-		memmove(p1, p2, LCD_BYTE_WIDTH * LCD_HEIGHT - sz);
-		memset(p3, 0, sz);
-	}
-
-	sz = VIDEO_FONT_BYTE_WIDTH * adx;
-	if (dx > 0) {
-		p1 = &sw_screen[0];
-		p2 = &sw_screen[0] + sz;
-		p3 = &sw_screen[0] + LCD_BYTE_WIDTH - sz;
-	} else if (dx < 0) {
-		p1 = &sw_screen[0] + sz;
-		p2 = &sw_screen[0];
-		p3 = &sw_screen[0];
-	}
-
-	/* xscroll */
-	if (adx > 0) {
-		for (i = 0; i < LCD_HEIGHT; i++) {
-			memmove(p1, p2, LCD_BYTE_WIDTH - sz);
-			memset(p3, 0, sz);
-			p1 += LCD_BYTE_WIDTH;
-			p2 += LCD_BYTE_WIDTH;
-			p3 += LCD_BYTE_WIDTH;
-		}
-	}
-}
-
-void sed156x_init(void)
-{
-	int i;
-
-	SED156X_CS(1);
-	SED156X_A0(1);
-
-	/* Send initialization commands to the LCD */
-	sed156x_cmd_transfer(LCD_OFF);			/* Turn display OFF	  */
-	sed156x_cmd_transfer(LCD_BIAS);			/* set the LCD Bias,	  */
-	sed156x_cmd_transfer(LCD_ADCMODE);		/* ADC mode,		  */
-	sed156x_cmd_transfer(LCD_COMDIR);		/* common output mode,	  */
-	sed156x_cmd_transfer(LCD_RESRT | LCD_RRATIO);	/* resistor ratio,	  */
-	sed156x_cmd_transfer(LCD_EVSET);		/* electronic volume,	  */
-	sed156x_cmd_transfer(LCD_CNTRST);
-	sed156x_cmd_transfer(LCD_PWRMD | LCD_POWERM);	/* and power mode	  */
-	sed156x_cmd_transfer(LCD_PADDR | 0);		/* cursor home		  */
-	sed156x_cmd_transfer(LCD_CADRH | 0);
-	sed156x_cmd_transfer(LCD_CADRL | 0);
-	sed156x_cmd_transfer(LCD_LADDR | 0);		/* and display start line */
-	sed156x_cmd_transfer(LCD_DSP_NRM);		/* LCD display Normal	  */
-
-	/* clear everything */
-	memset(sw_screen, 0, sizeof(sw_screen));
-	memset(hw_screen, 0, sizeof(hw_screen));
-	memset(last_hw_screen, 0, sizeof(last_hw_screen));
-
-	for (i = 0; i < LCD_PAGES; i++) {
-		sed156x_cmd_transfer(LCD_PADDR | i);
-		sed156x_cmd_transfer(LCD_CADRH | 0);
-		sed156x_cmd_transfer(LCD_CADRL | 0);
-		sed156x_data_block_transfer(&hw_screen[i][0], LCD_COLUMNS);
-	}
-
-	sed156x_clear();
-	sed156x_sync();
-	sed156x_cmd_transfer(LCD_ON);			/* Turn display ON	  */
-}
diff --git a/include/sed156x.h b/include/sed156x.h
deleted file mode 100644
index 4e24e01..0000000
--- a/include/sed156x.h
+++ /dev/null
@@ -1,26 +0,0 @@ 
-/*
- * (C) Copyright 2004
- *
- * Pantelis Antoniou <panto@intracom.gr>
- * Intracom S.A.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/* Video support for Epson SED156x chipset(s) */
-
-#ifndef SED156X_H
-#define SED156X_H
-
-void sed156x_init(void);
-void sed156x_clear(void);
-void sed156x_output_at(int x, int y, const char *str, int size);
-void sed156x_reverse_at(int x, int y, int size);
-void sed156x_sync(void);
-void sed156x_scroll(int dx, int dy);
-
-/* export display */
-extern const int sed156x_text_width;
-extern const int sed156x_text_height;
-
-#endif	/* SED156X_H */