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Commit 76de404b authored by Heiko Stübner's avatar Heiko Stübner Committed by Tomi Valkeinen
Browse files

AUO-K190x: make color handling more flexible



Don't hardcode the 8bit mode in all parts. This creates the possibility
to add another colormode easily later on.

Signed-off-by: default avatarHeiko Stübner <heiko@sntech.de>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 4ea80d35
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+65 −14
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ static void auok190x_issue_cmd(struct auok190xfb_par *par, u16 data)
	par->board->set_ctl(par, AUOK190X_I80_DC, 1);
}

static int auok190x_issue_pixels(struct auok190xfb_par *par, int size,
static int auok190x_issue_pixels_gray8(struct auok190xfb_par *par, int size,
				       u16 *data)
{
	struct device *dev = par->info->device;
@@ -91,6 +91,21 @@ static int auok190x_issue_pixels(struct auok190xfb_par *par, int size,
	return 0;
}

static int auok190x_issue_pixels(struct auok190xfb_par *par, int size,
				 u16 *data)
{
	struct fb_info *info = par->info;
	struct device *dev = par->info->device;

	if (info->var.bits_per_pixel == 8 && info->var.grayscale)
		auok190x_issue_pixels_gray8(par, size, data);
	else
		dev_err(dev, "unsupported color mode (bits: %d, gray: %d)\n",
			info->var.bits_per_pixel, info->var.grayscale);

	return 0;
}

static u16 auok190x_read_data(struct auok190xfb_par *par)
{
	u16 data;
@@ -381,6 +396,35 @@ static int auok190xfb_check_var(struct fb_var_screeninfo *var,
	struct panel_info *panel = &panel_table[par->resolution];
	int size;

	/*
	 * Color depth
	 */

	if (var->bits_per_pixel == 8 && var->grayscale == 1) {
		/*
		 * For 8-bit grayscale, R, G, and B offset are equal.
		 */
		var->red.length = 8;
		var->red.offset = 0;
		var->red.msb_right = 0;

		var->green.length = 8;
		var->green.offset = 0;
		var->green.msb_right = 0;

		var->blue.length = 8;
		var->blue.offset = 0;
		var->blue.msb_right = 0;

		var->transp.length = 0;
		var->transp.offset = 0;
		var->transp.msb_right = 0;
	} else {
		dev_warn(dev, "unsupported color mode (bits: %d, grayscale: %d)\n",
			info->var.bits_per_pixel, info->var.grayscale);
		return -EINVAL;
	}

	/*
	 * Dimensions
	 */
@@ -410,6 +454,24 @@ static int auok190xfb_check_var(struct fb_var_screeninfo *var,
	return 0;
}

static int auok190xfb_set_fix(struct fb_info *info)
{
	struct fb_fix_screeninfo *fix = &info->fix;
	struct fb_var_screeninfo *var = &info->var;

	fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;

	fix->type = FB_TYPE_PACKED_PIXELS;
	fix->accel = FB_ACCEL_NONE;
	fix->visual = (var->grayscale) ? FB_VISUAL_STATIC_PSEUDOCOLOR
				       : FB_VISUAL_TRUECOLOR;
	fix->xpanstep = 0;
	fix->ypanstep = 0;
	fix->ywrapstep = 0;

	return 0;
}

static struct fb_ops auok190xfb_ops = {
	.owner		= THIS_MODULE,
	.fb_read	= fb_sys_read,
@@ -894,18 +956,8 @@ int auok190x_common_probe(struct platform_device *pdev,
	/* initialise fix, var, resolution and rotation */

	strlcpy(info->fix.id, init->id, 16);
	info->fix.type = FB_TYPE_PACKED_PIXELS;
	info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
	info->fix.xpanstep = 0;
	info->fix.ypanstep = 0;
	info->fix.ywrapstep = 0;
	info->fix.accel = FB_ACCEL_NONE;

	info->var.bits_per_pixel = 8;
	info->var.grayscale = 1;
	info->var.red.length = 8;
	info->var.green.length = 8;
	info->var.blue.length = 8;

	panel = &panel_table[board->resolution];

@@ -933,8 +985,7 @@ int auok190x_common_probe(struct platform_device *pdev,
	if (ret)
		goto err_defio;

	info->fix.line_length = info->var.xres_virtual *
				info->var.bits_per_pixel / 8;
	auok190xfb_set_fix(info);

	/* deferred io init */