Lines Matching +full:sync +full:- +full:on +full:- +full:green
5 * Based on acornfb.c Copyright (C) Russell King.
11 * Please direct your questions and comments on this driver to the following
14 * linux-arm-kernel@lists.arm.linux.org.uk
31 #include <linux/dma-mapping.h>
62 #define DRIVER_NAME "imx-fb"
134 /* Used fb-mode. Can be set on kernel command line, therefore file-static. */
143 struct fb_bitfield green; member
191 .name = "imx1-fb",
194 .name = "imx21-fb",
204 .compatible = "fsl,imx1-fb",
207 .compatible = "fsl,imx21-fb",
217 return fbi->devtype == IMX1_FB; in is_imx1_fb()
234 .green = {.offset = 8, .length = 8,},
241 .green = {.offset = 5, .length = 6,},
248 .green = {.offset = 4, .length = 4,},
255 .green = {.offset = 0, .length = 8,},
266 chan >>= 16 - bf->length; in chan_to_field()
267 return chan << bf->offset; in chan_to_field()
270 static int imxfb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue, in imxfb_setpalettereg() argument
273 struct imxfb_info *fbi = info->par; in imxfb_setpalettereg()
276 #define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16) in imxfb_setpalettereg()
277 if (regno < fbi->palette_size) { in imxfb_setpalettereg()
279 (CNVT_TOHW(green,4) << 4) | in imxfb_setpalettereg()
282 writel(val, fbi->regs + 0x800 + (regno << 2)); in imxfb_setpalettereg()
288 static int imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, in imxfb_setcolreg() argument
291 struct imxfb_info *fbi = info->par; in imxfb_setcolreg()
301 if (fbi->cmap_inverse) { in imxfb_setcolreg()
302 red = 0xffff - red; in imxfb_setcolreg()
303 green = 0xffff - green; in imxfb_setcolreg()
304 blue = 0xffff - blue; in imxfb_setcolreg()
311 if (info->var.grayscale) in imxfb_setcolreg()
312 red = green = blue = (19595 * red + 38470 * green + in imxfb_setcolreg()
315 switch (info->fix.visual) { in imxfb_setcolreg()
318 * 12 or 16-bit True Colour. We encode the RGB value in imxfb_setcolreg()
322 u32 *pal = info->pseudo_palette; in imxfb_setcolreg()
324 val = chan_to_field(red, &info->var.red); in imxfb_setcolreg()
325 val |= chan_to_field(green, &info->var.green); in imxfb_setcolreg()
326 val |= chan_to_field(blue, &info->var.blue); in imxfb_setcolreg()
335 ret = imxfb_setpalettereg(regno, red, green, blue, trans, info); in imxfb_setcolreg()
348 return &fbi->mode[0]; in imxfb_find_mode()
350 for (i = 0, m = &fbi->mode[0]; i < fbi->num_modes; i++, m++) { in imxfb_find_mode()
351 if (!strcmp(m->mode.name, fb_mode)) in imxfb_find_mode()
365 struct imxfb_info *fbi = info->par; in imxfb_check_var()
372 if (var->xres < MIN_XRES) in imxfb_check_var()
373 var->xres = MIN_XRES; in imxfb_check_var()
374 if (var->yres < MIN_YRES) in imxfb_check_var()
375 var->yres = MIN_YRES; in imxfb_check_var()
379 return -EINVAL; in imxfb_check_var()
381 var->xres = imxfb_mode->mode.xres; in imxfb_check_var()
382 var->yres = imxfb_mode->mode.yres; in imxfb_check_var()
383 var->bits_per_pixel = imxfb_mode->bpp; in imxfb_check_var()
384 var->pixclock = imxfb_mode->mode.pixclock; in imxfb_check_var()
385 var->hsync_len = imxfb_mode->mode.hsync_len; in imxfb_check_var()
386 var->left_margin = imxfb_mode->mode.left_margin; in imxfb_check_var()
387 var->right_margin = imxfb_mode->mode.right_margin; in imxfb_check_var()
388 var->vsync_len = imxfb_mode->mode.vsync_len; in imxfb_check_var()
389 var->upper_margin = imxfb_mode->mode.upper_margin; in imxfb_check_var()
390 var->lower_margin = imxfb_mode->mode.lower_margin; in imxfb_check_var()
391 var->sync = imxfb_mode->mode.sync; in imxfb_check_var()
392 var->xres_virtual = max(var->xres_virtual, var->xres); in imxfb_check_var()
393 var->yres_virtual = max(var->yres_virtual, var->yres); in imxfb_check_var()
395 pr_debug("var->bits_per_pixel=%d\n", var->bits_per_pixel); in imxfb_check_var()
397 lcd_clk = clk_get_rate(fbi->clk_per); in imxfb_check_var()
399 tmp = var->pixclock * (unsigned long long)lcd_clk; in imxfb_check_var()
408 if (--pcr > 0x3F) { in imxfb_check_var()
414 switch (var->bits_per_pixel) { in imxfb_check_var()
426 if (imxfb_mode->pcr & PCR_TFT) in imxfb_check_var()
437 /* add sync polarities */ in imxfb_check_var()
438 pcr |= imxfb_mode->pcr & ~(0x3f | (7 << 25)); in imxfb_check_var()
440 fbi->pcr = pcr; in imxfb_check_var()
442 * The LCDC AUS Mode Control Register does not exist on imx1. in imxfb_check_var()
444 if (!is_imx1_fb(fbi) && imxfb_mode->aus_mode) in imxfb_check_var()
445 fbi->lauscr = LAUSCR_AUS_MODE; in imxfb_check_var()
451 var->red = rgb->red; in imxfb_check_var()
452 var->green = rgb->green; in imxfb_check_var()
453 var->blue = rgb->blue; in imxfb_check_var()
454 var->transp = rgb->transp; in imxfb_check_var()
457 var->red.length, var->green.length, var->blue.length, in imxfb_check_var()
458 var->transp.length); in imxfb_check_var()
461 var->red.offset, var->green.offset, var->blue.offset, in imxfb_check_var()
462 var->transp.offset); in imxfb_check_var()
473 struct imxfb_info *fbi = info->par; in imxfb_set_par()
474 struct fb_var_screeninfo *var = &info->var; in imxfb_set_par()
476 if (var->bits_per_pixel == 16 || var->bits_per_pixel == 32) in imxfb_set_par()
477 info->fix.visual = FB_VISUAL_TRUECOLOR; in imxfb_set_par()
478 else if (!fbi->cmap_static) in imxfb_set_par()
479 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; in imxfb_set_par()
486 info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR; in imxfb_set_par()
489 info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8; in imxfb_set_par()
490 fbi->palette_size = var->bits_per_pixel == 8 ? 256 : 16; in imxfb_set_par()
501 if (fbi->enabled) in imxfb_enable_controller()
506 writel(fbi->map_dma, fbi->regs + LCDC_SSA); in imxfb_enable_controller()
509 writel(0x00000000, fbi->regs + LCDC_POS); in imxfb_enable_controller()
512 writel(readl(fbi->regs + LCDC_CPOS) & ~(CPOS_CC0 | CPOS_CC1), in imxfb_enable_controller()
513 fbi->regs + LCDC_CPOS); in imxfb_enable_controller()
516 * RMCR_LCDC_EN_MX1 is present on i.MX1 only, but doesn't hurt in imxfb_enable_controller()
517 * on other SoCs in imxfb_enable_controller()
519 writel(RMCR_LCDC_EN_MX1, fbi->regs + LCDC_RMCR); in imxfb_enable_controller()
521 ret = clk_prepare_enable(fbi->clk_ipg); in imxfb_enable_controller()
525 ret = clk_prepare_enable(fbi->clk_ahb); in imxfb_enable_controller()
529 ret = clk_prepare_enable(fbi->clk_per); in imxfb_enable_controller()
533 fbi->enabled = true; in imxfb_enable_controller()
537 clk_disable_unprepare(fbi->clk_ahb); in imxfb_enable_controller()
539 clk_disable_unprepare(fbi->clk_ipg); in imxfb_enable_controller()
541 writel(0, fbi->regs + LCDC_RMCR); in imxfb_enable_controller()
548 if (!fbi->enabled) in imxfb_disable_controller()
553 clk_disable_unprepare(fbi->clk_per); in imxfb_disable_controller()
554 clk_disable_unprepare(fbi->clk_ahb); in imxfb_disable_controller()
555 clk_disable_unprepare(fbi->clk_ipg); in imxfb_disable_controller()
556 fbi->enabled = false; in imxfb_disable_controller()
558 writel(0, fbi->regs + LCDC_RMCR); in imxfb_disable_controller()
563 struct imxfb_info *fbi = info->par; in imxfb_blank()
592 * Configures LCD Controller based on entries in var parameter. Settings are
597 struct imxfb_info *fbi = info->par; in imxfb_activate_var()
601 var->xres, var->hsync_len, in imxfb_activate_var()
602 var->left_margin, var->right_margin); in imxfb_activate_var()
604 var->yres, var->vsync_len, in imxfb_activate_var()
605 var->upper_margin, var->lower_margin); in imxfb_activate_var()
608 if (var->xres < 16 || var->xres > 1024) in imxfb_activate_var()
610 info->fix.id, var->xres); in imxfb_activate_var()
611 if (var->hsync_len < 1 || var->hsync_len > 64) in imxfb_activate_var()
613 info->fix.id, var->hsync_len); in imxfb_activate_var()
614 if (var->left_margin < 3 || var->left_margin > 255) in imxfb_activate_var()
616 info->fix.id, var->left_margin); in imxfb_activate_var()
617 if (var->right_margin < 1 || var->right_margin > 255) in imxfb_activate_var()
619 info->fix.id, var->right_margin); in imxfb_activate_var()
620 if (var->yres < 1 || var->yres > ymax_mask) in imxfb_activate_var()
622 info->fix.id, var->yres); in imxfb_activate_var()
623 if (var->vsync_len > 100) in imxfb_activate_var()
625 info->fix.id, var->vsync_len); in imxfb_activate_var()
626 if (var->upper_margin > 63) in imxfb_activate_var()
628 info->fix.id, var->upper_margin); in imxfb_activate_var()
629 if (var->lower_margin > 255) in imxfb_activate_var()
631 info->fix.id, var->lower_margin); in imxfb_activate_var()
635 writel(VPW_VPW(var->xres * var->bits_per_pixel / 8 / 4), in imxfb_activate_var()
636 fbi->regs + LCDC_VPW); in imxfb_activate_var()
638 writel(HCR_H_WIDTH(var->hsync_len - 1) | in imxfb_activate_var()
639 HCR_H_WAIT_1(var->right_margin - 1) | in imxfb_activate_var()
640 HCR_H_WAIT_2(var->left_margin - 3), in imxfb_activate_var()
641 fbi->regs + LCDC_HCR); in imxfb_activate_var()
643 writel(VCR_V_WIDTH(var->vsync_len) | in imxfb_activate_var()
644 VCR_V_WAIT_1(var->lower_margin) | in imxfb_activate_var()
645 VCR_V_WAIT_2(var->upper_margin), in imxfb_activate_var()
646 fbi->regs + LCDC_VCR); in imxfb_activate_var()
648 writel(SIZE_XMAX(var->xres) | (var->yres & ymax_mask), in imxfb_activate_var()
649 fbi->regs + LCDC_SIZE); in imxfb_activate_var()
651 writel(fbi->pcr, fbi->regs + LCDC_PCR); in imxfb_activate_var()
652 if (fbi->pwmr) in imxfb_activate_var()
653 writel(fbi->pwmr, fbi->regs + LCDC_PWMR); in imxfb_activate_var()
654 writel(fbi->lscr1, fbi->regs + LCDC_LSCR1); in imxfb_activate_var()
657 if (fbi->dmacr) in imxfb_activate_var()
658 writel(fbi->dmacr, fbi->regs + LCDC_DMACR); in imxfb_activate_var()
660 if (fbi->lauscr) in imxfb_activate_var()
661 writel(fbi->lauscr, fbi->regs + LCDC_LAUSCR); in imxfb_activate_var()
669 struct imxfb_info *fbi = info->par; in imxfb_init_fbinfo()
674 info->pseudo_palette = devm_kmalloc_array(&pdev->dev, 16, in imxfb_init_fbinfo()
676 if (!info->pseudo_palette) in imxfb_init_fbinfo()
677 return -ENOMEM; in imxfb_init_fbinfo()
681 fbi->devtype = pdev->id_entry->driver_data; in imxfb_init_fbinfo()
683 strscpy(info->fix.id, IMX_NAME, sizeof(info->fix.id)); in imxfb_init_fbinfo()
685 info->fix.type = FB_TYPE_PACKED_PIXELS; in imxfb_init_fbinfo()
686 info->fix.type_aux = 0; in imxfb_init_fbinfo()
687 info->fix.xpanstep = 0; in imxfb_init_fbinfo()
688 info->fix.ypanstep = 0; in imxfb_init_fbinfo()
689 info->fix.ywrapstep = 0; in imxfb_init_fbinfo()
690 info->fix.accel = FB_ACCEL_NONE; in imxfb_init_fbinfo()
692 info->var.nonstd = 0; in imxfb_init_fbinfo()
693 info->var.activate = FB_ACTIVATE_NOW; in imxfb_init_fbinfo()
694 info->var.height = -1; in imxfb_init_fbinfo()
695 info->var.width = -1; in imxfb_init_fbinfo()
696 info->var.accel_flags = 0; in imxfb_init_fbinfo()
697 info->var.vmode = FB_VMODE_NONINTERLACED; in imxfb_init_fbinfo()
699 info->fbops = &imxfb_ops; in imxfb_init_fbinfo()
700 info->flags = FBINFO_READS_FAST; in imxfb_init_fbinfo()
702 np = pdev->dev.of_node; in imxfb_init_fbinfo()
703 info->var.grayscale = of_property_read_bool(np, in imxfb_init_fbinfo()
704 "cmap-greyscale"); in imxfb_init_fbinfo()
705 fbi->cmap_inverse = of_property_read_bool(np, "cmap-inverse"); in imxfb_init_fbinfo()
706 fbi->cmap_static = of_property_read_bool(np, "cmap-static"); in imxfb_init_fbinfo()
708 fbi->lscr1 = IMXFB_LSCR1_DEFAULT; in imxfb_init_fbinfo()
710 of_property_read_u32(np, "fsl,lpccr", &fbi->pwmr); in imxfb_init_fbinfo()
712 of_property_read_u32(np, "fsl,lscr1", &fbi->lscr1); in imxfb_init_fbinfo()
714 of_property_read_u32(np, "fsl,dmacr", &fbi->dmacr); in imxfb_init_fbinfo()
723 struct fb_videomode *of_mode = &imxfb_mode->mode; in imxfb_of_read_mode()
727 ret = of_property_read_string(np, "model", &of_mode->name); in imxfb_of_read_mode()
729 of_mode->name = NULL; in imxfb_of_read_mode()
737 ret = of_property_read_u32(np, "bits-per-pixel", &bpp); in imxfb_of_read_mode()
742 return -EINVAL; in imxfb_of_read_mode()
747 return -EINVAL; in imxfb_of_read_mode()
750 imxfb_mode->bpp = bpp; in imxfb_of_read_mode()
751 imxfb_mode->pcr = pcr; in imxfb_of_read_mode()
754 * fsl,aus-mode is optional in imxfb_of_read_mode()
756 imxfb_mode->aus_mode = of_property_read_bool(np, "fsl,aus-mode"); in imxfb_of_read_mode()
763 struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); in imxfb_lcd_check_fb()
765 if (!fi || fi->par == fbi) in imxfb_lcd_check_fb()
773 struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); in imxfb_lcd_get_contrast()
775 return fbi->pwmr & 0xff; in imxfb_lcd_get_contrast()
780 struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); in imxfb_lcd_set_contrast()
782 if (fbi->pwmr && fbi->enabled) { in imxfb_lcd_set_contrast()
788 fbi->pwmr &= ~0xff; in imxfb_lcd_set_contrast()
789 fbi->pwmr |= contrast; in imxfb_lcd_set_contrast()
791 writel(fbi->pwmr, fbi->regs + LCDC_PWMR); in imxfb_lcd_set_contrast()
799 struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); in imxfb_lcd_get_power()
801 if (!IS_ERR(fbi->lcd_pwr) && in imxfb_lcd_get_power()
802 !regulator_is_enabled(fbi->lcd_pwr)) in imxfb_lcd_get_power()
812 if (enable == fbi->lcd_pwr_enabled) in imxfb_regulator_set()
816 ret = regulator_enable(fbi->lcd_pwr); in imxfb_regulator_set()
818 ret = regulator_disable(fbi->lcd_pwr); in imxfb_regulator_set()
821 fbi->lcd_pwr_enabled = enable; in imxfb_regulator_set()
828 struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev); in imxfb_lcd_set_power()
830 if (!IS_ERR(fbi->lcd_pwr)) in imxfb_lcd_set_power()
849 return -ENODEV; in imxfb_setup()
875 dev_info(&pdev->dev, "i.MX Framebuffer driver\n"); in imxfb_probe()
881 of_id = of_match_device(imxfb_of_dev_id, &pdev->dev); in imxfb_probe()
883 pdev->id_entry = of_id->data; in imxfb_probe()
885 info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev); in imxfb_probe()
887 return -ENOMEM; in imxfb_probe()
889 fbi = info->par; in imxfb_probe()
899 display_np = of_parse_phandle(pdev->dev.of_node, "display", 0); in imxfb_probe()
901 dev_err(&pdev->dev, "No display defined in devicetree\n"); in imxfb_probe()
902 ret = -EINVAL; in imxfb_probe()
910 fbi->num_modes = 1; in imxfb_probe()
912 fbi->mode = devm_kzalloc(&pdev->dev, in imxfb_probe()
914 if (!fbi->mode) { in imxfb_probe()
915 ret = -ENOMEM; in imxfb_probe()
920 ret = imxfb_of_read_mode(&pdev->dev, display_np, fbi->mode); in imxfb_probe()
926 * be the same as m->bpp/8 */ in imxfb_probe()
927 m = &fbi->mode[0]; in imxfb_probe()
928 bytes_per_pixel = (m->bpp + 7) / 8; in imxfb_probe()
929 for (i = 0; i < fbi->num_modes; i++, m++) in imxfb_probe()
930 info->fix.smem_len = max_t(size_t, info->fix.smem_len, in imxfb_probe()
931 m->mode.xres * m->mode.yres * bytes_per_pixel); in imxfb_probe()
933 fbi->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); in imxfb_probe()
934 if (IS_ERR(fbi->clk_ipg)) { in imxfb_probe()
935 ret = PTR_ERR(fbi->clk_ipg); in imxfb_probe()
949 ret = clk_prepare_enable(fbi->clk_ipg); in imxfb_probe()
952 clk_disable_unprepare(fbi->clk_ipg); in imxfb_probe()
954 fbi->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); in imxfb_probe()
955 if (IS_ERR(fbi->clk_ahb)) { in imxfb_probe()
956 ret = PTR_ERR(fbi->clk_ahb); in imxfb_probe()
960 fbi->clk_per = devm_clk_get(&pdev->dev, "per"); in imxfb_probe()
961 if (IS_ERR(fbi->clk_per)) { in imxfb_probe()
962 ret = PTR_ERR(fbi->clk_per); in imxfb_probe()
966 fbi->regs = devm_platform_ioremap_resource(pdev, 0); in imxfb_probe()
967 if (IS_ERR(fbi->regs)) { in imxfb_probe()
968 ret = PTR_ERR(fbi->regs); in imxfb_probe()
972 fbi->map_size = PAGE_ALIGN(info->fix.smem_len); in imxfb_probe()
973 info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, in imxfb_probe()
974 &fbi->map_dma, GFP_KERNEL); in imxfb_probe()
975 if (!info->screen_buffer) { in imxfb_probe()
976 dev_err(&pdev->dev, "Failed to allocate video RAM\n"); in imxfb_probe()
977 ret = -ENOMEM; in imxfb_probe()
981 info->fix.smem_start = fbi->map_dma; in imxfb_probe()
983 INIT_LIST_HEAD(&info->modelist); in imxfb_probe()
984 for (i = 0; i < fbi->num_modes; i++) in imxfb_probe()
985 fb_add_videomode(&fbi->mode[i].mode, &info->modelist); in imxfb_probe()
991 imxfb_check_var(&info->var, info); in imxfb_probe()
997 ret = fb_alloc_cmap(&info->cmap, 256, 0); in imxfb_probe()
1004 dev_err(&pdev->dev, "failed to register framebuffer\n"); in imxfb_probe()
1008 fbi->lcd_pwr = devm_regulator_get(&pdev->dev, "lcd"); in imxfb_probe()
1009 if (PTR_ERR(fbi->lcd_pwr) == -EPROBE_DEFER) { in imxfb_probe()
1010 ret = -EPROBE_DEFER; in imxfb_probe()
1014 lcd = devm_lcd_device_register(&pdev->dev, "imxfb-lcd", &pdev->dev, fbi, in imxfb_probe()
1021 lcd->props.max_contrast = 0xff; in imxfb_probe()
1024 fbi->pdev = pdev; in imxfb_probe()
1031 fb_dealloc_cmap(&info->cmap); in imxfb_probe()
1033 dma_free_wc(&pdev->dev, fbi->map_size, info->screen_buffer, in imxfb_probe()
1034 fbi->map_dma); in imxfb_probe()
1043 struct imxfb_info *fbi = info->par; in imxfb_remove()
1048 fb_dealloc_cmap(&info->cmap); in imxfb_remove()
1049 dma_free_wc(&pdev->dev, fbi->map_size, info->screen_buffer, in imxfb_remove()
1050 fbi->map_dma); in imxfb_remove()
1057 struct imxfb_info *fbi = info->par; in imxfb_suspend()
1067 struct imxfb_info *fbi = info->par; in imxfb_resume()