Lines Matching refs:var
87 static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
92 static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
125 * to hardware, it should only verify and adjust var.
127 * data from it to check this var.
130 static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
140 if (var->vmode & FB_VMODE_CONUPDATE) {
141 var->vmode |= FB_VMODE_YWRAP;
142 var->xoffset = info->var.xoffset;
143 var->yoffset = info->var.yoffset;
149 if (!var->xres)
150 var->xres = 1;
151 if (!var->yres)
152 var->yres = 1;
153 if (var->xres > var->xres_virtual)
154 var->xres_virtual = var->xres;
155 if (var->yres > var->yres_virtual)
156 var->yres_virtual = var->yres;
157 if (var->bits_per_pixel <= 1)
158 var->bits_per_pixel = 1;
159 else if (var->bits_per_pixel <= 8)
160 var->bits_per_pixel = 8;
161 else if (var->bits_per_pixel <= 16)
162 var->bits_per_pixel = 16;
163 else if (var->bits_per_pixel <= 24)
164 var->bits_per_pixel = 24;
165 else if (var->bits_per_pixel <= 32)
166 var->bits_per_pixel = 32;
170 if (var->xres_virtual < var->xoffset + var->xres)
171 var->xres_virtual = var->xoffset + var->xres;
172 if (var->yres_virtual < var->yoffset + var->yres)
173 var->yres_virtual = var->yoffset + var->yres;
179 get_line_length(var->xres_virtual, var->bits_per_pixel);
180 if (line_length * var->yres_virtual > videomemorysize)
184 * Now that we checked it we alter var. The reason being is that the video
188 switch (var->bits_per_pixel) {
190 var->red.offset = 0;
191 var->red.length = 1;
192 var->green.offset = 0;
193 var->green.length = 1;
194 var->blue.offset = 0;
195 var->blue.length = 1;
196 var->transp.offset = 0;
197 var->transp.length = 0;
200 var->red.offset = 0;
201 var->red.length = 8;
202 var->green.offset = 0;
203 var->green.length = 8;
204 var->blue.offset = 0;
205 var->blue.length = 8;
206 var->transp.offset = 0;
207 var->transp.length = 0;
210 if (var->transp.length) {
211 var->red.offset = 0;
212 var->red.length = 5;
213 var->green.offset = 5;
214 var->green.length = 5;
215 var->blue.offset = 10;
216 var->blue.length = 5;
217 var->transp.offset = 15;
218 var->transp.length = 1;
220 var->red.offset = 0;
221 var->red.length = 5;
222 var->green.offset = 5;
223 var->green.length = 6;
224 var->blue.offset = 11;
225 var->blue.length = 5;
226 var->transp.offset = 0;
227 var->transp.length = 0;
231 var->red.offset = 0;
232 var->red.length = 8;
233 var->green.offset = 8;
234 var->green.length = 8;
235 var->blue.offset = 16;
236 var->blue.length = 8;
237 var->transp.offset = 0;
238 var->transp.length = 0;
241 var->red.offset = 0;
242 var->red.length = 8;
243 var->green.offset = 8;
244 var->green.length = 8;
245 var->blue.offset = 16;
246 var->blue.length = 8;
247 var->transp.offset = 24;
248 var->transp.length = 8;
251 var->red.msb_right = 0;
252 var->green.msb_right = 0;
253 var->blue.msb_right = 0;
254 var->transp.msb_right = 0;
265 info->fix.line_length = get_line_length(info->var.xres_virtual,
266 info->var.bits_per_pixel);
273 * entries in the var structure). Return != 0 for invalid regno.
286 if (info->var.grayscale) {
293 * var->{color}.offset contains start of bitfield
294 * var->{color}.length contains length of bitfield
301 * var->{color}.offset is 0
302 * var->{color}.length contains width of DAC
307 * var->{color}.offset contains start of bitfield
308 * var->{color}.length contains length of bitfield
317 red = CNVT_TOHW(red, info->var.red.length);
318 green = CNVT_TOHW(green, info->var.green.length);
319 blue = CNVT_TOHW(blue, info->var.blue.length);
320 transp = CNVT_TOHW(transp, info->var.transp.length);
338 v = (red << info->var.red.offset) |
339 (green << info->var.green.offset) |
340 (blue << info->var.blue.offset) |
341 (transp << info->var.transp.offset);
342 switch (info->var.bits_per_pixel) {
364 static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
367 if (var->vmode & FB_VMODE_YWRAP) {
368 if (var->yoffset < 0
369 || var->yoffset >= info->var.yres_virtual
370 || var->xoffset)
373 if (var->xoffset + info->var.xres > info->var.xres_virtual ||
374 var->yoffset + info->var.yres > info->var.yres_virtual)
377 info->var.xoffset = var->xoffset;
378 info->var.yoffset = var->yoffset;
379 if (var->vmode & FB_VMODE_YWRAP)
380 info->var.vmode |= FB_VMODE_YWRAP;
382 info->var.vmode &= ~FB_VMODE_YWRAP;
438 fb_info.var = mc68x328fb_default;
446 if (fb_info.var.bits_per_pixel == 1) {
447 fb_info.var.red.length = fb_info.var.green.length = fb_info.var.blue.length = 1;
448 fb_info.var.red.offset = fb_info.var.green.offset = fb_info.var.blue.offset = 0;