data.c

QNX ADS BSP code for i.MX27 chips

/*
 * $QNXLicenseC: 
 * Copyright 2007, QNX Software Systems.  
 *  
 * Licensed under the Apache License, Version 2.0 (the "License"). You  
 * may not reproduce, modify or distribute this software except in  
 * compliance with the License. You may obtain a copy of the License  
 * at: http://www.apache.org/licenses/LICENSE-2.0  
 *  
 * Unless required by applicable law or agreed to in writing, software  
 * distributed under the License is distributed on an "AS IS" basis,  
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied. 
 * 
 * This file may contain contributions from others, either as  
 * contributors under the License or as licensors under other terms.   
 * Please review this entire file for other proprietary rights or license  
 * notices, as well as the QNX Development Suite License Guide at  
 * http://licensing.qnx.com/license-guide/ for other information. 
 * $ 
 */

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "imx21.h"

static char *imx21_opts[] = {
#define I_X		0
			"x",
#define I_Y		1
			"y",
#define I_MBASE		2
			"mmio",
#define I_TFT		3
			"tft",
#define I_COLOR		4
			"color",
#define I_PBW		5
			"pbw",
#define I_PIXPOL	6
			"pixpol",
#define I_FLMPOL	7
			"flmpol",
#define I_LPPOL		8	
			"lppol",
#define I_CLKPOL	9	
			"clkpol",
#define I_OEPOL		10	
			"oepol",
#define I_SCLKIDLE	11
			"sclkidle",
#define I_ENDIAN	12
			"end_sel",
#define I_SWAPSEL	13
			"swap_sel",
#define I_REV_VS	14
			"rev_vs",
#define I_ACDSEL	15
			"acdsel",
#define I_ACD		16
			"acd",	
#define I_SCLKSEL	17
			"sclksel",	
#define I_SHARP		18	
			"sharp",	
#define I_HSW		19	
			"hsw",	
#define I_HW1		20	
			"hw1",	
#define I_HW2		21	
			"hw2",	
#define I_VSW		22	
			"vsw",	
#define I_VW1		23	
			"vw1",	
#define I_VW2		24	
			"vw2",	
#define I_PCD		25	
			"pcd",	
#define i_CON		26
			"con",
#define i_DMA		27
			"dma",
#define i_PA1		28
			"pa1",
			NULL
};

int
get_config_data(imx21_context_t *i_ctx, const char *filename)
{
	FILE	*fin = NULL;
	char	buf[512], *c, *opt, *value;

	if (filename == NULL)
		disp_printf(i_ctx->adapter,
		    "No config file specified, using default parameters\n");
	else if ((fin = fopen(filename, "r")) == NULL)
		disp_printf(i_ctx->adapter,
		    "Could not open config file \"%s\": %s\n",
		    filename, strerror(errno));

	/* set default valies */
	i_ctx->width = 240;
	i_ctx->height = 320;
        i_ctx->regbase = LCDC_REG_BASE;
        i_ctx->cregbase = PLL_REG_BASE;
	i_ctx->gregbase = GPIO_REG_BASE;
	i_ctx->mmiobase = MMIO_BASE;
        i_ctx->tft = 1;
        i_ctx->color = 1;
        i_ctx->pixpol = 1;
        i_ctx->flmpol = 0;
        i_ctx->lppol = 0;
        i_ctx->clkpol = 0;
        i_ctx->oepol = 1;
        i_ctx->sclkidle = 0;
        i_ctx->end_sel = 0; /* make LCD controller little end_sel */
        i_ctx->swap_sel = 0;
        i_ctx->rev_vs = 0;
        i_ctx->sclksel = 1; 
        i_ctx->sharp = 0x120300;
	i_ctx->pcd = 8;
	i_ctx->contrast = 0xA903ff;
	i_ctx->dma = 0x20008;
	i_ctx->pa1 = 0;

	i_ctx->hsw = 2;
	i_ctx->hw1 = 16;
	i_ctx->hw2 = 9;
	i_ctx->vsw = 1;
	i_ctx->vw1 = 9;
	i_ctx->vw2 = 7;

        /* not applicable to tft:
		i_ctx->pbsiz
        	i_ctx->acdsel;
        	i_ctx->acd;
	*/

	/* use defaults */
	if (fin == NULL) {
		return 0;
	}

	while (fgets(buf, sizeof (buf), fin) != NULL) {
		c = buf;
		while (*c == ' ' || *c == '\t')
			c++;
		if (*c == '\015' || *c== '\032' || *c == '\0' || *c == '\n' || *c == '#')
			continue;
		opt = c;
		while (*c == '\015' || *c== '\032' || *c != '\0' && *c != '\n' && *c != '#')
			c++;
		*c = '\0';
		break;
	}

	while (*opt != '\0') {
		c = opt;
		switch (getsubopt(&opt, imx21_opts, &value)) {
		case I_X:
			i_ctx->width = strtol(value, NULL, 0);
			break;
		case I_Y:
			i_ctx->height = strtol(value, NULL, 0);
			break;
		case I_MBASE:
			i_ctx->mmiobase = strtoul(value, NULL, 0);
			break;
		case I_TFT:
			i_ctx->tft = strtol(value, NULL, 0);
			if (i_ctx->tft)
				i_ctx->tft = 1;
			break;
		case I_COLOR:
			i_ctx->color = strtol(value, NULL, 0);
			if (i_ctx->color)
				i_ctx->color = 1;
			break;
		case I_PBW:
			i_ctx->pbsiz = strtol(value, NULL, 0);
			break;
		case I_PIXPOL:
			i_ctx->pixpol = strtol(value, NULL, 0);
			if (i_ctx->pixpol)
				i_ctx->pixpol = 1;
			break;
		case I_FLMPOL:
			i_ctx->flmpol = strtol(value, NULL, 0);
			if (i_ctx->flmpol)
				i_ctx->flmpol = 1;
			break;
		case I_LPPOL:
			i_ctx->lppol = strtol(value, NULL, 0);
			if (i_ctx->lppol)
				i_ctx->lppol = 1;
			break;
		case I_CLKPOL:
			i_ctx->clkpol = strtol(value, NULL, 0);
			if (i_ctx->clkpol)
				i_ctx->clkpol = 1;
			break;
		case I_OEPOL:
			i_ctx->oepol = strtol(value, NULL, 0);
			if (i_ctx->oepol)
				i_ctx->oepol = 1;
			break;
		case I_SCLKIDLE:
			i_ctx->sclkidle = strtol(value, NULL, 0);
			if (i_ctx->sclkidle)
				i_ctx->sclkidle = 1;
			break;
		case I_ENDIAN:
			i_ctx->end_sel = strtol(value, NULL, 0);
			if (i_ctx->end_sel)
				i_ctx->end_sel = 1;
			break;
		case I_SWAPSEL:
			i_ctx->swap_sel = strtol(value, NULL, 0);
			if (i_ctx->swap_sel)
				i_ctx->swap_sel = 1;
			break;
		case I_REV_VS:
			i_ctx->rev_vs = strtol(value, NULL, 0);
			if (i_ctx->rev_vs)
				i_ctx->rev_vs = 1;
			break;
		case I_ACDSEL:
			i_ctx->acdsel = strtol(value, NULL, 0);
			if (i_ctx->acdsel)
				i_ctx->acdsel = 1;
			break;
		case I_ACD:
			i_ctx->acd = strtol(value, NULL, 0);
			break;
		case I_SCLKSEL:
			i_ctx->sclksel = strtol(value, NULL, 0);
			if (i_ctx->sclksel)
				i_ctx->sclksel = 1;
			break;
		case I_SHARP:	
			i_ctx->sharp = strtol(value, NULL, 0);
			break;
		case I_HSW:	
			i_ctx->hsw = strtol(value, NULL, 0);
			break;
		case I_HW1:
			i_ctx->hw1 = strtol(value, NULL, 0);
			break;
		case I_HW2:	
			i_ctx->hw2 = strtol(value, NULL, 0);
			break;
		case I_VSW:	
			i_ctx->vsw = strtol(value, NULL, 0);
			break;
		case I_VW1:	
			i_ctx->vw1 = strtol(value, NULL, 0);
			break;
		case I_VW2:	
			i_ctx->vw2 = strtol(value, NULL, 0);
			break;
		case I_PCD:	
			i_ctx->pcd = strtol(value, NULL, 0);
			break;
		case i_CON:
			i_ctx->contrast = strtol(value, NULL, 0);
			break;
		case i_DMA:
			i_ctx->dma = strtol(value, NULL, 0);
			break;
		case i_PA1:
			i_ctx->pa1 = strtol(value, NULL, 0);
			break;
		default:
			disp_printf(i_ctx->adapter, "Unknown option %s\n", c);
			break;
		}
	}

	fclose(fin);

	return 0;
}