Lines Matching +full:full +full:- +full:custom
1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * Full documentation of the core can be found here:
14 #include <linux/dma-mapping.h>
81 struct grvga_par *par = info->par; in grvga_check_var()
84 if (!var->xres) in grvga_check_var()
85 var->xres = 1; in grvga_check_var()
86 if (!var->yres) in grvga_check_var()
87 var->yres = 1; in grvga_check_var()
88 if (var->bits_per_pixel <= 8) in grvga_check_var()
89 var->bits_per_pixel = 8; in grvga_check_var()
90 else if (var->bits_per_pixel <= 16) in grvga_check_var()
91 var->bits_per_pixel = 16; in grvga_check_var()
92 else if (var->bits_per_pixel <= 24) in grvga_check_var()
93 var->bits_per_pixel = 24; in grvga_check_var()
94 else if (var->bits_per_pixel <= 32) in grvga_check_var()
95 var->bits_per_pixel = 32; in grvga_check_var()
97 return -EINVAL; in grvga_check_var()
99 var->xres_virtual = var->xres; in grvga_check_var()
100 var->yres_virtual = 2*var->yres; in grvga_check_var()
102 if (info->fix.smem_len) { in grvga_check_var()
103 if ((var->yres_virtual*var->xres_virtual*var->bits_per_pixel/8) > info->fix.smem_len) in grvga_check_var()
104 return -ENOMEM; in grvga_check_var()
109 if (var->pixclock == par->regs->clk_vector[i]) in grvga_check_var()
113 par->clk_sel = i; in grvga_check_var()
115 return -EINVAL; in grvga_check_var()
117 switch (info->var.bits_per_pixel) { in grvga_check_var()
119 var->red = (struct fb_bitfield) {0, 8, 0}; /* offset, length, msb-right */ in grvga_check_var()
120 var->green = (struct fb_bitfield) {0, 8, 0}; in grvga_check_var()
121 var->blue = (struct fb_bitfield) {0, 8, 0}; in grvga_check_var()
122 var->transp = (struct fb_bitfield) {0, 0, 0}; in grvga_check_var()
125 var->red = (struct fb_bitfield) {11, 5, 0}; in grvga_check_var()
126 var->green = (struct fb_bitfield) {5, 6, 0}; in grvga_check_var()
127 var->blue = (struct fb_bitfield) {0, 5, 0}; in grvga_check_var()
128 var->transp = (struct fb_bitfield) {0, 0, 0}; in grvga_check_var()
132 var->red = (struct fb_bitfield) {16, 8, 0}; in grvga_check_var()
133 var->green = (struct fb_bitfield) {8, 8, 0}; in grvga_check_var()
134 var->blue = (struct fb_bitfield) {0, 8, 0}; in grvga_check_var()
135 var->transp = (struct fb_bitfield) {24, 8, 0}; in grvga_check_var()
138 return -EINVAL; in grvga_check_var()
148 struct grvga_par *par = info->par; in grvga_set_par()
150 __raw_writel(((info->var.yres - 1) << 16) | (info->var.xres - 1), in grvga_set_par()
151 &par->regs->video_length); in grvga_set_par()
153 __raw_writel((info->var.lower_margin << 16) | (info->var.right_margin), in grvga_set_par()
154 &par->regs->front_porch); in grvga_set_par()
156 __raw_writel((info->var.vsync_len << 16) | (info->var.hsync_len), in grvga_set_par()
157 &par->regs->sync_length); in grvga_set_par()
159 …__raw_writel(((info->var.yres + info->var.lower_margin + info->var.upper_margin + info->var.vsync_… in grvga_set_par()
160 (info->var.xres + info->var.right_margin + info->var.left_margin + info->var.hsync_len - 1), in grvga_set_par()
161 &par->regs->line_length); in grvga_set_par()
163 switch (info->var.bits_per_pixel) { in grvga_set_par()
165 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; in grvga_set_par()
169 info->fix.visual = FB_VISUAL_TRUECOLOR; in grvga_set_par()
174 info->fix.visual = FB_VISUAL_TRUECOLOR; in grvga_set_par()
178 return -EINVAL; in grvga_set_par()
181 __raw_writel((par->clk_sel << 6) | (func << 4) | 1, in grvga_set_par()
182 &par->regs->status); in grvga_set_par()
184 info->fix.line_length = (info->var.xres_virtual*info->var.bits_per_pixel)/8; in grvga_set_par()
191 par = info->par; in grvga_setcolreg()
194 return -EINVAL; in grvga_setcolreg()
196 if (info->var.grayscale) { in grvga_setcolreg()
203 #define CNVT_TOHW(val, width) ((((val)<<(width))+0x7FFF-(val))>>16) in grvga_setcolreg()
205 red = CNVT_TOHW(red, info->var.red.length); in grvga_setcolreg()
206 green = CNVT_TOHW(green, info->var.green.length); in grvga_setcolreg()
207 blue = CNVT_TOHW(blue, info->var.blue.length); in grvga_setcolreg()
208 transp = CNVT_TOHW(transp, info->var.transp.length); in grvga_setcolreg()
213 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) in grvga_setcolreg()
215 &par->regs->clut); in grvga_setcolreg()
218 else if (info->fix.visual == FB_VISUAL_TRUECOLOR) { in grvga_setcolreg()
221 return -EINVAL; in grvga_setcolreg()
224 v = (red << info->var.red.offset) | in grvga_setcolreg()
225 (green << info->var.green.offset) | in grvga_setcolreg()
226 (blue << info->var.blue.offset) | in grvga_setcolreg()
227 (transp << info->var.transp.offset); in grvga_setcolreg()
229 ((u32 *) (info->pseudo_palette))[regno] = v; in grvga_setcolreg()
237 struct grvga_par *par = info->par; in grvga_pan_display()
238 struct fb_fix_screeninfo *fix = &info->fix; in grvga_pan_display()
241 if (var->xoffset != 0) in grvga_pan_display()
242 return -EINVAL; in grvga_pan_display()
244 base_addr = fix->smem_start + (var->yoffset * fix->line_length); in grvga_pan_display()
249 &par->regs->fb_pos); in grvga_pan_display()
271 return -1; in grvga_parse_custom()
279 screendata->pixclock = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
283 screendata->xres = screendata->xres_virtual = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
287 screendata->right_margin = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
291 screendata->hsync_len = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
295 screendata->left_margin = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
299 screendata->yres = screendata->yres_virtual = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
303 screendata->lower_margin = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
307 screendata->vsync_len = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
311 screendata->upper_margin = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
315 screendata->bits_per_pixel = simple_strtoul(this_opt, NULL, 0); in grvga_parse_custom()
319 return -1; in grvga_parse_custom()
322 screendata->activate = FB_ACTIVATE_NOW; in grvga_parse_custom()
323 screendata->vmode = FB_VMODE_NONINTERLACED; in grvga_parse_custom()
330 int retval = -ENOMEM; in grvga_probe()
338 info = framebuffer_alloc(sizeof(struct grvga_par), &dev->dev); in grvga_probe()
340 return -ENOMEM; in grvga_probe()
344 …* If modestring is custom:<custom mode string> we parse the string which then contains all videopa… in grvga_probe()
349 retval = -ENODEV; in grvga_probe()
354 options = "640x480-8@60"; in grvga_probe()
362 if (!strncmp(this_opt, "custom", 6)) { in grvga_probe()
363 if (grvga_parse_custom(this_opt, &info->var) < 0) { in grvga_probe()
364 dev_err(&dev->dev, "Failed to parse custom mode (%s).\n", this_opt); in grvga_probe()
365 retval = -EINVAL; in grvga_probe()
376 par = info->par; in grvga_probe()
377 info->fbops = &grvga_ops; in grvga_probe()
378 info->fix = grvga_fix; in grvga_probe()
379 info->pseudo_palette = par->color_palette; in grvga_probe()
380 info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN; in grvga_probe()
381 info->fix.smem_len = grvga_mem_size; in grvga_probe()
383 if (!devm_request_mem_region(&dev->dev, dev->resource[0].start, in grvga_probe()
384 resource_size(&dev->resource[0]), "grlib-svgactrl regs")) { in grvga_probe()
385 dev_err(&dev->dev, "registers already mapped\n"); in grvga_probe()
386 retval = -EBUSY; in grvga_probe()
390 par->regs = of_ioremap(&dev->resource[0], 0, in grvga_probe()
391 resource_size(&dev->resource[0]), in grvga_probe()
392 "grlib-svgactrl regs"); in grvga_probe()
394 if (!par->regs) { in grvga_probe()
395 dev_err(&dev->dev, "failed to map registers\n"); in grvga_probe()
396 retval = -ENOMEM; in grvga_probe()
400 retval = fb_alloc_cmap(&info->cmap, 256, 0); in grvga_probe()
402 dev_err(&dev->dev, "failed to allocate mem with fb_alloc_cmap\n"); in grvga_probe()
403 retval = -ENOMEM; in grvga_probe()
408 retval = fb_find_mode(&info->var, info, mode_opt, in grvga_probe()
411 retval = -EINVAL; in grvga_probe()
417 grvga_mem_size = info->var.xres_virtual * info->var.yres_virtual * info->var.bits_per_pixel/8; in grvga_probe()
424 if (!devm_request_mem_region(&dev->dev, physical_start, in grvga_probe()
425 grvga_mem_size, dev->name)) { in grvga_probe()
426 dev_err(&dev->dev, "failed to request memory region\n"); in grvga_probe()
427 retval = -ENOMEM; in grvga_probe()
434 dev_err(&dev->dev, "error mapping framebuffer memory\n"); in grvga_probe()
435 retval = -ENOMEM; in grvga_probe()
445 dev_err(&dev->dev, in grvga_probe()
448 retval = -ENOMEM; in grvga_probe()
452 physical_start = dma_map_single(&dev->dev, (void *)virtual_start, grvga_mem_size, DMA_TO_DEVICE); in grvga_probe()
463 par->fb_alloced = 1; in grvga_probe()
468 info->screen_base = (char __iomem *) virtual_start; in grvga_probe()
469 info->fix.smem_start = physical_start; in grvga_probe()
470 info->fix.smem_len = grvga_mem_size; in grvga_probe()
472 dev_set_drvdata(&dev->dev, info); in grvga_probe()
474 dev_info(&dev->dev, in grvga_probe()
475 "Aeroflex Gaisler framebuffer device (fb%d), %dx%d-%d, using %luK of video memory @ %p\n", in grvga_probe()
476 info->node, info->var.xres, info->var.yres, info->var.bits_per_pixel, in grvga_probe()
477 grvga_mem_size >> 10, info->screen_base); in grvga_probe()
481 dev_err(&dev->dev, "failed to register framebuffer\n"); in grvga_probe()
485 __raw_writel(physical_start, &par->regs->fb_pos); in grvga_probe()
486 __raw_writel(__raw_readl(&par->regs->status) | 1, /* Enable framebuffer */ in grvga_probe()
487 &par->regs->status); in grvga_probe()
497 fb_dealloc_cmap(&info->cmap); in grvga_probe()
499 of_iounmap(&dev->resource[0], par->regs, in grvga_probe()
500 resource_size(&dev->resource[0])); in grvga_probe()
509 struct fb_info *info = dev_get_drvdata(&device->dev); in grvga_remove()
513 par = info->par; in grvga_remove()
515 fb_dealloc_cmap(&info->cmap); in grvga_remove()
517 of_iounmap(&device->resource[0], par->regs, in grvga_remove()
518 resource_size(&device->resource[0])); in grvga_remove()
520 if (!par->fb_alloced) in grvga_remove()
521 iounmap(info->screen_base); in grvga_remove()
523 kfree((void *)info->screen_base); in grvga_remove()
544 .name = "grlib-svgactrl",