Lines Matching refs:var
90 static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
95 static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
127 * to hardware, it should only verify and adjust var.
129 * data from it to check this var.
132 static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
142 if (var->vmode & FB_VMODE_CONUPDATE) {
143 var->vmode |= FB_VMODE_YWRAP;
144 var->xoffset = info->var.xoffset;
145 var->yoffset = info->var.yoffset;
151 if (!var->xres)
152 var->xres = 1;
153 if (!var->yres)
154 var->yres = 1;
155 if (var->xres > var->xres_virtual)
156 var->xres_virtual = var->xres;
157 if (var->yres > var->yres_virtual)
158 var->yres_virtual = var->yres;
159 if (var->bits_per_pixel <= 1)
160 var->bits_per_pixel = 1;
161 else if (var->bits_per_pixel <= 8)
162 var->bits_per_pixel = 8;
163 else if (var->bits_per_pixel <= 16)
164 var->bits_per_pixel = 16;
165 else if (var->bits_per_pixel <= 24)
166 var->bits_per_pixel = 24;
167 else if (var->bits_per_pixel <= 32)
168 var->bits_per_pixel = 32;
172 if (var->xres_virtual < var->xoffset + var->xres)
173 var->xres_virtual = var->xoffset + var->xres;
174 if (var->yres_virtual < var->yoffset + var->yres)
175 var->yres_virtual = var->yoffset + var->yres;
181 get_line_length(var->xres_virtual, var->bits_per_pixel);
182 if (line_length * var->yres_virtual > videomemorysize)
186 * Now that we checked it we alter var. The reason being is that the video
190 switch (var->bits_per_pixel) {
192 var->red.offset = 0;
193 var->red.length = 1;
194 var->green.offset = 0;
195 var->green.length = 1;
196 var->blue.offset = 0;
197 var->blue.length = 1;
198 var->transp.offset = 0;
199 var->transp.length = 0;
202 var->red.offset = 0;
203 var->red.length = 8;
204 var->green.offset = 0;
205 var->green.length = 8;
206 var->blue.offset = 0;
207 var->blue.length = 8;
208 var->transp.offset = 0;
209 var->transp.length = 0;
212 if (var->transp.length) {
213 var->red.offset = 0;
214 var->red.length = 5;
215 var->green.offset = 5;
216 var->green.length = 5;
217 var->blue.offset = 10;
218 var->blue.length = 5;
219 var->transp.offset = 15;
220 var->transp.length = 1;
222 var->red.offset = 0;
223 var->red.length = 5;
224 var->green.offset = 5;
225 var->green.length = 6;
226 var->blue.offset = 11;
227 var->blue.length = 5;
228 var->transp.offset = 0;
229 var->transp.length = 0;
233 var->red.offset = 0;
234 var->red.length = 8;
235 var->green.offset = 8;
236 var->green.length = 8;
237 var->blue.offset = 16;
238 var->blue.length = 8;
239 var->transp.offset = 0;
240 var->transp.length = 0;
243 var->red.offset = 0;
244 var->red.length = 8;
245 var->green.offset = 8;
246 var->green.length = 8;
247 var->blue.offset = 16;
248 var->blue.length = 8;
249 var->transp.offset = 24;
250 var->transp.length = 8;
253 var->red.msb_right = 0;
254 var->green.msb_right = 0;
255 var->blue.msb_right = 0;
256 var->transp.msb_right = 0;
267 info->fix.line_length = get_line_length(info->var.xres_virtual,
268 info->var.bits_per_pixel);
275 * entries in the var structure). Return != 0 for invalid regno.
288 if (info->var.grayscale) {
295 * var->{color}.offset contains start of bitfield
296 * var->{color}.length contains length of bitfield
303 * var->{color}.offset is 0
304 * var->{color}.length contains width of DAC
309 * var->{color}.offset contains start of bitfield
310 * var->{color}.length contains length of bitfield
319 red = CNVT_TOHW(red, info->var.red.length);
320 green = CNVT_TOHW(green, info->var.green.length);
321 blue = CNVT_TOHW(blue, info->var.blue.length);
322 transp = CNVT_TOHW(transp, info->var.transp.length);
340 v = (red << info->var.red.offset) |
341 (green << info->var.green.offset) |
342 (blue << info->var.blue.offset) |
343 (transp << info->var.transp.offset);
344 switch (info->var.bits_per_pixel) {
366 static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
369 if (var->vmode & FB_VMODE_YWRAP) {
370 if (var->yoffset < 0
371 || var->yoffset >= info->var.yres_virtual
372 || var->xoffset)
375 if (var->xoffset + info->var.xres > info->var.xres_virtual ||
376 var->yoffset + info->var.yres > info->var.yres_virtual)
379 info->var.xoffset = var->xoffset;
380 info->var.yoffset = var->yoffset;
381 if (var->vmode & FB_VMODE_YWRAP)
382 info->var.vmode |= FB_VMODE_YWRAP;
384 info->var.vmode &= ~FB_VMODE_YWRAP;
440 fb_info.var = mc68x328fb_default;
448 if (fb_info.var.bits_per_pixel == 1) {
449 fb_info.var.red.length = fb_info.var.green.length = fb_info.var.blue.length = 1;
450 fb_info.var.red.offset = fb_info.var.green.offset = fb_info.var.blue.offset = 0;