83 static int grvga_check_var(struct fb_var_screeninfo *var,  in grvga_check_var()  argument
89 	if (!var->xres)  in grvga_check_var()
90 		var->xres = 1;  in grvga_check_var()
91 	if (!var->yres)  in grvga_check_var()
92 		var->yres = 1;  in grvga_check_var()
93 	if (var->bits_per_pixel <= 8)  in grvga_check_var()
94 		var->bits_per_pixel = 8;  in grvga_check_var()
95 	else if (var->bits_per_pixel <= 16)  in grvga_check_var()
96 		var->bits_per_pixel = 16;  in grvga_check_var()
97 	else if (var->bits_per_pixel <= 24)  in grvga_check_var()
98 		var->bits_per_pixel = 24;  in grvga_check_var()
99 	else if (var->bits_per_pixel <= 32)  in grvga_check_var()
100 		var->bits_per_pixel = 32;  in grvga_check_var()
104 	var->xres_virtual = var->xres;  in grvga_check_var()
105 	var->yres_virtual = 2*var->yres;  in grvga_check_var()
108 		if ((var->yres_virtual*var->xres_virtual*var->bits_per_pixel/8) > info->fix.smem_len)  in grvga_check_var()
114 		if (var->pixclock == par->regs->clk_vector[i])  in grvga_check_var()
122 	switch (info->var.bits_per_pixel) {  in grvga_check_var()
124 		var->red   = (struct fb_bitfield) {0, 8, 0};      /* offset, length, msb-right */  in grvga_check_var()
125 		var->green = (struct fb_bitfield) {0, 8, 0};  in grvga_check_var()
126 		var->blue  = (struct fb_bitfield) {0, 8, 0};  in grvga_check_var()
127 		var->transp = (struct fb_bitfield) {0, 0, 0};  in grvga_check_var()
130 		var->red   = (struct fb_bitfield) {11, 5, 0};  in grvga_check_var()
131 		var->green = (struct fb_bitfield) {5, 6, 0};  in grvga_check_var()
132 		var->blue  = (struct fb_bitfield) {0, 5, 0};  in grvga_check_var()
133 		var->transp = (struct fb_bitfield) {0, 0, 0};  in grvga_check_var()
137 		var->red   = (struct fb_bitfield) {16, 8, 0};  in grvga_check_var()
138 		var->green = (struct fb_bitfield) {8, 8, 0};  in grvga_check_var()
139 		var->blue  = (struct fb_bitfield) {0, 8, 0};  in grvga_check_var()
140 		var->transp = (struct fb_bitfield) {24, 8, 0};  in grvga_check_var()
155 	__raw_writel(((info->var.yres - 1) << 16) | (info->var.xres - 1),  in grvga_set_par()
158 	__raw_writel((info->var.lower_margin << 16) | (info->var.right_margin),  in grvga_set_par()
161 	__raw_writel((info->var.vsync_len << 16) | (info->var.hsync_len),  in grvga_set_par()
164 …__raw_writel(((info->var.yres + info->var.lower_margin + info->var.upper_margin + info->var.vsync_…  in grvga_set_par()
165 		     (info->var.xres + info->var.right_margin + info->var.left_margin + info->var.hsync_len - 1),  in grvga_set_par()
168 	switch (info->var.bits_per_pixel) {  in grvga_set_par()
189 	info->fix.line_length = (info->var.xres_virtual*info->var.bits_per_pixel)/8;  in grvga_set_par()
201 	if (info->var.grayscale) {  in grvga_setcolreg()
210 	red    = CNVT_TOHW(red,   info->var.red.length);  in grvga_setcolreg()
211 	green  = CNVT_TOHW(green, info->var.green.length);  in grvga_setcolreg()
212 	blue   = CNVT_TOHW(blue,  info->var.blue.length);  in grvga_setcolreg()
213 	transp = CNVT_TOHW(transp, info->var.transp.length);  in grvga_setcolreg()
229 		v =     (red    << info->var.red.offset)   |  in grvga_setcolreg()
230 			(green  << info->var.green.offset) |  in grvga_setcolreg()
231 			(blue   << info->var.blue.offset)  |  in grvga_setcolreg()
232 			(transp << info->var.transp.offset);  in grvga_setcolreg()
239 static int grvga_pan_display(struct fb_var_screeninfo *var,  in grvga_pan_display()  argument
246 	if (var->xoffset != 0)  in grvga_pan_display()
249 	base_addr = fix->smem_start + (var->yoffset * fix->line_length);  in grvga_pan_display()
370 			if (grvga_parse_custom(this_opt, &info->var) < 0) {  in grvga_probe()
415 		retval = fb_find_mode(&info->var, info, mode_opt,  in grvga_probe()
424 		grvga_mem_size = info->var.xres_virtual * info->var.yres_virtual * info->var.bits_per_pixel/8;  in grvga_probe()
483 		 info->node, info->var.xres, info->var.yres, info->var.bits_per_pixel,  in grvga_probe()