mmp/fb/mmpfb.c

14 static int var_to_pixfmt(struct fb_var_screeninfo *var)
19 	if (var->bits_per_pixel == 8)
25 	if (var->bits_per_pixel == 16 && var->red.length == 8 &&
26 			var->green.length == 4 && var->blue.length == 4) {
27 		if (var->green.offset >= var->blue.offset)
36 	if (var->bits_per_pixel == 12 && var->red.length == 8 &&
37 			var->green.length == 2 && var->blue.length == 2) {
38 		if (var->green.offset >= var->blue.offset)
47 	if (var->bits_per_pixel == 16 && var->red.length == 16 &&
48 			var->green.length == 16 && var->blue.length == 16) {
49 		if (var->red.offset == 0)
51 		else if (var->green.offset >= var->blue.offset)
60 	if (var->bits_per_pixel == 16 && var->red.length <= 5 &&
61 			var->green.length <= 6 && var->blue.length <= 5) {
62 		if (var->transp.length == 0) {
63 			if (var->red.offset >= var->blue.offset)
73 	if (var->bits_per_pixel <= 32 && var->red.length <= 8 &&
74 			var->green.length <= 8 && var->blue.length <= 8) {
75 		if (var->bits_per_pixel == 24 && var->transp.length == 0) {
76 			if (var->red.offset >= var->blue.offset)
82 		if (var->bits_per_pixel == 32 && var->transp.offset == 24) {
83 			if (var->red.offset >= var->blue.offset)
88 			if (var->red.offset >= var->blue.offset)
98 static void pixfmt_to_var(struct fb_var_screeninfo *var, int pix_fmt)
102 		var->bits_per_pixel = 16;
103 		var->red.offset = 11;	var->red.length = 5;
104 		var->green.offset = 5;   var->green.length = 6;
105 		var->blue.offset = 0;	var->blue.length = 5;
106 		var->transp.offset = 0;  var->transp.length = 0;
109 		var->bits_per_pixel = 16;
110 		var->red.offset = 0;	var->red.length = 5;
111 		var->green.offset = 5;	 var->green.length = 6;
112 		var->blue.offset = 11;	var->blue.length = 5;
113 		var->transp.offset = 0;  var->transp.length = 0;
116 		var->bits_per_pixel = 32;
117 		var->red.offset = 16;	var->red.length = 8;
118 		var->green.offset = 8;   var->green.length = 8;
119 		var->blue.offset = 0;	var->blue.length = 8;
120 		var->transp.offset = 0;  var->transp.length = 0;
123 		var->bits_per_pixel = 32;
124 		var->red.offset = 0;	var->red.length = 8;
125 		var->green.offset = 8;	 var->green.length = 8;
126 		var->blue.offset = 16;	var->blue.length = 8;
127 		var->transp.offset = 0;  var->transp.length = 0;
130 		var->bits_per_pixel = 32;
131 		var->red.offset = 16;	var->red.length = 8;
132 		var->green.offset = 8;   var->green.length = 8;
133 		var->blue.offset = 0;	var->blue.length = 8;
134 		var->transp.offset = 24; var->transp.length = 8;
137 		var->bits_per_pixel = 32;
138 		var->red.offset = 0;	var->red.length = 8;
139 		var->green.offset = 8;	 var->green.length = 8;
140 		var->blue.offset = 16;	var->blue.length = 8;
141 		var->transp.offset = 24; var->transp.length = 8;
144 		var->bits_per_pixel = 24;
145 		var->red.offset = 16;	var->red.length = 8;
146 		var->green.offset = 8;   var->green.length = 8;
147 		var->blue.offset = 0;	var->blue.length = 8;
148 		var->transp.offset = 0;  var->transp.length = 0;
151 		var->bits_per_pixel = 24;
152 		var->red.offset = 0;	var->red.length = 8;
153 		var->green.offset = 8;	 var->green.length = 8;
154 		var->blue.offset = 16;	var->blue.length = 8;
155 		var->transp.offset = 0;  var->transp.length = 0;
158 		var->bits_per_pixel = 12;
159 		var->red.offset = 4;	 var->red.length = 8;
160 		var->green.offset = 2;   var->green.length = 2;
161 		var->blue.offset = 0;   var->blue.length = 2;
162 		var->transp.offset = 0;  var->transp.length = 0;
165 		var->bits_per_pixel = 12;
166 		var->red.offset = 4;	 var->red.length = 8;
167 		var->green.offset = 0;	 var->green.length = 2;
168 		var->blue.offset = 2;	var->blue.length = 2;
169 		var->transp.offset = 0;  var->transp.length = 0;
172 		var->bits_per_pixel = 16;
173 		var->red.offset = 8;	 var->red.length = 8;
174 		var->green.offset = 4;   var->green.length = 4;
175 		var->blue.offset = 0;   var->blue.length = 4;
176 		var->transp.offset = 0;  var->transp.length = 0;
179 		var->bits_per_pixel = 16;
180 		var->red.offset = 8;	 var->red.length = 8;
181 		var->green.offset = 0;	 var->green.length = 4;
182 		var->blue.offset = 4;	var->blue.length = 4;
183 		var->transp.offset = 0;  var->transp.length = 0;
186 		var->bits_per_pixel = 16;
187 		var->red.offset = 8;	 var->red.length = 16;
188 		var->green.offset = 4;   var->green.length = 16;
189 		var->blue.offset = 0;   var->blue.length = 16;
190 		var->transp.offset = 0;  var->transp.length = 0;
193 		var->bits_per_pixel = 16;
194 		var->red.offset = 8;	 var->red.length = 16;
195 		var->green.offset = 0;	 var->green.length = 16;
196 		var->blue.offset = 4;	var->blue.length = 16;
197 		var->transp.offset = 0;  var->transp.length = 0;
200 		var->bits_per_pixel = 16;
201 		var->red.offset = 0;	 var->red.length = 16;
202 		var->green.offset = 4;	 var->green.length = 16;
203 		var->blue.offset = 8;	var->blue.length = 16;
204 		var->transp.offset = 0;  var->transp.length = 0;
207 		var->bits_per_pixel = 8;
208 		var->red.offset = 0;	 var->red.length = 8;
209 		var->green.offset = 0;   var->green.length = 8;
210 		var->blue.offset = 0;	var->blue.length = 8;
211 		var->transp.offset = 0;  var->transp.length = 0;
272 static int mmpfb_check_var(struct fb_var_screeninfo *var,
277 	if (var->bits_per_pixel == 8)
282 	if (var->xoffset + var->xres > var->xres_virtual)
284 	if (var->yoffset + var->yres > var->yres_virtual)
290 	if (var->xres_virtual * var->yres_virtual *
291 			(var->bits_per_pixel >> 3) > fbi->fb_size)
319 		val =  chan_to_field(red,   &info->var.red);
320 		val |= chan_to_field(green, &info->var.green);
321 		val |= chan_to_field(blue , &info->var.blue);
333 static int mmpfb_pan_display(struct fb_var_screeninfo *var,
340 	addr.phys[0] = (var->yoffset * var->xres_virtual + var->xoffset)
341 		* var->bits_per_pixel / 8 + fbi->fb_start_dma;
350 	struct fb_var_screeninfo *var = &info->var;
355 	pix_fmt = var_to_pixfmt(var);
358 	pixfmt_to_var(var, pix_fmt);
361 	/* set var according to best video mode*/
362 	m = (struct fb_videomode *)fb_match_mode(var, &info->modelist);
365 		m = (struct fb_videomode *)fb_find_best_mode(var,
367 		fb_videomode_to_var(var, m);
372 	var->yres_virtual = var->yres * 2;
375 	info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
376 	info->fix.ypanstep = var->yres;
383 	struct fb_var_screeninfo *var = &info->var;
392 	win.pitch[0] = var->xres_virtual * stride;
394 		(stride == 1) ? (var->xres_virtual >> 1) : 0;
401 	struct fb_var_screeninfo *var = &info->var;
419 	addr.phys[0] = (var->yoffset * var->xres_virtual + var->xoffset)
420 		* var->bits_per_pixel / 8 + fbi->fb_start_dma;
429 	struct fb_var_screeninfo *var = &fbi->fb_info->var;
439 			(var->yoffset * var->xres_virtual + var->xoffset)
440 			* var->bits_per_pixel / 8;
491 	fb_videomode_to_var(&info->var, &fbi->mode);
510 	info->fix.ypanstep = info->var.yres;
517 	info->fix.line_length = info->var.xres_virtual *
518 		info->var.bits_per_pixel / 8;
561 	pixfmt_to_var(&info->var, fbi->pix_fmt);
595 		info->var.yres_virtual = info->var.yres * 2;
598 		fbi->fb_size = info->var.xres_virtual * info->var.yres_virtual
599 				* info->var.bits_per_pixel / 8;