[people/ms/u-boot.git] / board / mcc200 / lcd.c

/*
 * (C) Copyright 2006
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <lcd.h>
#include <mpc5xxx.h>
#include <malloc.h>

#ifdef CONFIG_LCD

#undef SWAPPED_LCD /* For the previous h/w version */
/*
 *  The name of the device used for communication
 * with the PSoC.
 */
#define PSOC_PSC	MPC5XXX_PSC2
#define PSOC_BAUD	230400UL

#define RTS_ASSERT	1
#define RTS_NEGATE	0
#define CTS_ASSERT	1
#define CTS_NEGATE	0

/*
 * Dimensions in pixels
 */
#define LCD_WIDTH	160
#define LCD_HEIGHT	100

/*
 * Dimensions in bytes
 */
#define LCD_BUF_SIZE	((LCD_WIDTH*LCD_HEIGHT)>>3)

#if LCD_BPP != LCD_MONOCHROME
#error "MCC200 support only monochrome displays (1 bpp)!"
#endif

#define PSOC_RETRIES	10	/* each of PSOC_WAIT_TIME */
#define PSOC_WAIT_TIME	10	/* usec */

#include <video_font.h>
#define FONT_WIDTH	VIDEO_FONT_WIDTH

DECLARE_GLOBAL_DATA_PTR;

/*
 * LCD information
 */
vidinfo_t panel_info = {
	LCD_WIDTH, LCD_HEIGHT, LCD_BPP
};


/*
 *  The device we use to communicate with PSoC
 */
int serial_inited = 0;

/*
 *  Imported functions to support the PSoC protocol
 */
extern int serial_init_dev (unsigned long dev_base);
extern void serial_setrts_dev (unsigned long dev_base, int s);
extern int serial_getcts_dev (unsigned long dev_base);
extern void serial_putc_raw_dev(unsigned long dev_base, const char c);

/*
 *  Just stubs for our driver, needed for compiling compabilty with
 * the common LCD driver code.
 */
void lcd_initcolregs (void)
{
}

void lcd_ctrl_init (void *lcdbase)
{
}

/*
 * Function sends the contents of the frame-buffer to the LCD
 */
void lcd_enable (void)
{
	int i, retries, fb_size;

	if (!serial_inited) {
		unsigned long baud;

		baud = gd->baudrate;
		gd->baudrate = PSOC_BAUD;
		serial_init_dev(PSOC_PSC);
		gd->baudrate = baud;
		serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
		serial_inited = 1;
	}

	/*
	 *  Implement PSoC communication protocol:
	 * 1. Assert RTS, wait CTS assertion
	 * 2. Transmit data
	 * 3. Negate RTS, wait CTS negation
	 */

	/* 1 */
	serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
	for (retries = PSOC_RETRIES; retries; retries--) {
		if (serial_getcts_dev(PSOC_PSC) == CTS_ASSERT)
			break;
		udelay (PSOC_WAIT_TIME);
	}
	if (!retries) {
		printf ("%s Error: PSoC doesn't respond on "
			"RTS ASSERT\n",	__FUNCTION__);
	}

	/* 2 */
	fb_size = panel_info.vl_row * (panel_info.vl_col >> 3);

#if !defined(SWAPPED_LCD)
	for (i=0; i<fb_size; i++) {
		serial_putc_raw_dev(PSOC_PSC, ((char *)gd->fb_base)[i]);
	}
#else
    {
	int x, y, pwidth;
	char *p = (char *)gd->fb_base;

	pwidth = ((panel_info.vl_col+7) >> 3);
	for (y=0; y<panel_info.vl_row; y++) {
		i = y * pwidth;
		for (x=0; x<pwidth; x+=5) {
			serial_putc_raw_dev (PSOC_PSC, (p[i+x+2]<<4 & 0xF0) | (p[i+x+3]>>4 & 0x0F));
			serial_putc_raw_dev (PSOC_PSC, (p[i+x+3]<<4 & 0xF0) | (p[i+x+4]>>4 & 0x0F));
			serial_putc_raw_dev (PSOC_PSC, (p[i+x+4]<<4 & 0xF0) | (p[i+x]>>4 & 0x0F));
			serial_putc_raw_dev (PSOC_PSC, (p[i+x]<<4 & 0xF0) | (p[i+x+1]>>4 & 0x0F));
			serial_putc_raw_dev (PSOC_PSC, (p[i+x+1]<<4 & 0xF0) | (p[i+x+2]>>4 & 0x0F));
		}
	}
    }
#endif

	/* 3 */
	serial_setrts_dev (PSOC_PSC, RTS_NEGATE);
	for (retries = PSOC_RETRIES; retries; retries--) {
		if (serial_getcts_dev(PSOC_PSC) == CTS_NEGATE)
			break;
		udelay (PSOC_WAIT_TIME);
	}

	return;
}
#ifdef CONFIG_PROGRESSBAR

void show_progress (int size, int tot)
{
	int cnt;
	int i;
	static int rc = 0;

	rc += size;

	cnt = ((LCD_WIDTH/FONT_WIDTH) * rc) / tot;

	rc -= (cnt * tot) / (LCD_WIDTH/FONT_WIDTH);

	for (i = 0; i < cnt; i++) {
		lcd_putc(0xdc);
	}

	if (cnt) {
		lcd_enable(); /* MCC200-specific - send the framebuffer to PSoC */
	}
}

#endif

int bmp_display(ulong addr, int x, int y)
{
	int ret;
	bmp_image_t *bmp = (bmp_image_t *)addr;

	if (!bmp) {
		printf("There is no valid bmp file at the given address\n");
		return 1;
	}

	ret = lcd_display_bitmap((ulong)bmp, x, y);

	if ((unsigned long)bmp != addr)
		free(bmp);

	return ret;
}

#endif /* CONFIG_LCD */
Commit	Line	Data
e8143e72 WD	1	/*
	2	* (C) Copyright 2006
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation; either version 2 of
	8	* the License, or (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	18	* MA 02111-1307 USA
	19	*/
	20
	21	#include <common.h>
	22	#include <lcd.h>
	23	#include <mpc5xxx.h>
bfdcc65e	24	#include <malloc.h>
e8143e72 WD	25
	26	#ifdef CONFIG_LCD
	27
638dd145	28	#undef SWAPPED_LCD /* For the previous h/w version */
e8143e72 WD	29	/*
	30	* The name of the device used for communication
	31	* with the PSoC.
	32	*/
	33	#define PSOC_PSC MPC5XXX_PSC2
638dd145	34	#define PSOC_BAUD 230400UL
e8143e72 WD	35
	36	#define RTS_ASSERT 1
	37	#define RTS_NEGATE 0
	38	#define CTS_ASSERT 1
	39	#define CTS_NEGATE 0
	40
	41	/*
	42	* Dimensions in pixels
	43	*/
	44	#define LCD_WIDTH 160
	45	#define LCD_HEIGHT 100
	46
	47	/*
	48	* Dimensions in bytes
	49	*/
	50	#define LCD_BUF_SIZE ((LCD_WIDTH*LCD_HEIGHT)>>3)
	51
	52	#if LCD_BPP != LCD_MONOCHROME
	53	#error "MCC200 support only monochrome displays (1 bpp)!"
	54	#endif
	55
	56	#define PSOC_RETRIES 10 /* each of PSOC_WAIT_TIME */
	57	#define PSOC_WAIT_TIME 10 /* usec */
	58
d3983ee8 CLC	59	#include <video_font.h>
	60	#define FONT_WIDTH VIDEO_FONT_WIDTH
	61
e8143e72 WD	62	DECLARE_GLOBAL_DATA_PTR;
	63
	64	/*
	65	* LCD information
	66	*/
	67	vidinfo_t panel_info = {
	68	LCD_WIDTH, LCD_HEIGHT, LCD_BPP
	69	};
	70
e8143e72 WD	71
	72	/*
	73	* The device we use to communicate with PSoC
	74	*/
	75	int serial_inited = 0;
	76
e8143e72 WD	77	/*
	78	* Imported functions to support the PSoC protocol
	79	*/
	80	extern int serial_init_dev (unsigned long dev_base);
	81	extern void serial_setrts_dev (unsigned long dev_base, int s);
	82	extern int serial_getcts_dev (unsigned long dev_base);
	83	extern void serial_putc_raw_dev(unsigned long dev_base, const char c);
	84
	85	/*
	86	* Just stubs for our driver, needed for compiling compabilty with
	87	* the common LCD driver code.
	88	*/
	89	void lcd_initcolregs (void)
	90	{
	91	}
	92
	93	void lcd_ctrl_init (void *lcdbase)
	94	{
	95	}
	96
	97	/*
	98	* Function sends the contents of the frame-buffer to the LCD
	99	*/
	100	void lcd_enable (void)
	101	{
	102	int i, retries, fb_size;
	103
	104	if (!serial_inited) {
	105	unsigned long baud;
	106
	107	baud = gd->baudrate;
	108	gd->baudrate = PSOC_BAUD;
	109	serial_init_dev(PSOC_PSC);
	110	gd->baudrate = baud;
	111	serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
	112	serial_inited = 1;
	113	}
	114
	115	/*
	116	* Implement PSoC communication protocol:
	117	* 1. Assert RTS, wait CTS assertion
	118	* 2. Transmit data
	119	* 3. Negate RTS, wait CTS negation
	120	*/
	121
	122	/* 1 */
	123	serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
	124	for (retries = PSOC_RETRIES; retries; retries--) {
	125	if (serial_getcts_dev(PSOC_PSC) == CTS_ASSERT)
	126	break;
	127	udelay (PSOC_WAIT_TIME);
	128	}
	129	if (!retries) {
	130	printf ("%s Error: PSoC doesn't respond on "
	131	"RTS ASSERT\n", __FUNCTION__);
	132	}
	133
	134	/* 2 */
	135	fb_size = panel_info.vl_row * (panel_info.vl_col >> 3);
	136
	137	#if !defined(SWAPPED_LCD)
	138	for (i=0; i<fb_size; i++) {
00a0ca59	139	serial_putc_raw_dev(PSOC_PSC, ((char *)gd->fb_base)[i]);
e8143e72 WD	140	}
	141	#else
	142	{
	143	int x, y, pwidth;
00a0ca59	144	char p = (char )gd->fb_base;
e8143e72 WD	145
	146	pwidth = ((panel_info.vl_col+7) >> 3);
	147	for (y=0; y<panel_info.vl_row; y++) {
	148	i = y * pwidth;
	149	for (x=0; x<pwidth; x+=5) {
	150	serial_putc_raw_dev (PSOC_PSC, (p[i+x+2]<<4 & 0xF0) \| (p[i+x+3]>>4 & 0x0F));
	151	serial_putc_raw_dev (PSOC_PSC, (p[i+x+3]<<4 & 0xF0) \| (p[i+x+4]>>4 & 0x0F));
	152	serial_putc_raw_dev (PSOC_PSC, (p[i+x+4]<<4 & 0xF0) \| (p[i+x]>>4 & 0x0F));
	153	serial_putc_raw_dev (PSOC_PSC, (p[i+x]<<4 & 0xF0) \| (p[i+x+1]>>4 & 0x0F));
	154	serial_putc_raw_dev (PSOC_PSC, (p[i+x+1]<<4 & 0xF0) \| (p[i+x+2]>>4 & 0x0F));
	155	}
	156	}
	157	}
	158	#endif
	159
	160	/* 3 */
	161	serial_setrts_dev (PSOC_PSC, RTS_NEGATE);
	162	for (retries = PSOC_RETRIES; retries; retries--) {
	163	if (serial_getcts_dev(PSOC_PSC) == CTS_NEGATE)
	164	break;
	165	udelay (PSOC_WAIT_TIME);
	166	}
e8143e72 WD	167
	168	return;
	169	}
638dd145 SP	170	#ifdef CONFIG_PROGRESSBAR
638dd145 SP	171
638dd145 SP	172	void show_progress (int size, int tot)
	173	{
	174	int cnt;
	175	int i;
	176	static int rc = 0;
	177
	178	rc += size;
	179
	180	cnt = ((LCD_WIDTH/FONT_WIDTH) * rc) / tot;
	181
	182	rc -= (cnt * tot) / (LCD_WIDTH/FONT_WIDTH);
	183
	184	for (i = 0; i < cnt; i++) {
	185	lcd_putc(0xdc);
	186	}
	187
	188	if (cnt) {
	189	lcd_enable(); /* MCC200-specific - send the framebuffer to PSoC */
	190	}
	191	}
	192
	193	#endif
bfdcc65e NK	194
	195	int bmp_display(ulong addr, int x, int y)
	196	{
	197	int ret;
	198	bmp_image_t bmp = (bmp_image_t )addr;
	199
	200	if (!bmp) {
	201	printf("There is no valid bmp file at the given address\n");
	202	return 1;
	203	}
	204
	205	ret = lcd_display_bitmap((ulong)bmp, x, y);
	206
	207	if ((unsigned long)bmp != addr)
	208	free(bmp);
	209
	210	return ret;
	211	}
	212
e8143e72	213	#endif /* CONFIG_LCD */