diff options
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/Kconfig | 19 | ||||
-rw-r--r-- | drivers/video/Makefile | 1 | ||||
-rw-r--r-- | drivers/video/atmel_lcdfb.c | 15 | ||||
-rw-r--r-- | drivers/video/au1100fb.c | 2 | ||||
-rw-r--r-- | drivers/video/au1200fb.c | 4 | ||||
-rw-r--r-- | drivers/video/console/Makefile | 2 | ||||
-rw-r--r-- | drivers/video/console/fbcon.c | 35 | ||||
-rw-r--r-- | drivers/video/console/mdacon.c | 8 | ||||
-rw-r--r-- | drivers/video/console/newport_con.c | 9 | ||||
-rw-r--r-- | drivers/video/console/sticon.c | 6 | ||||
-rw-r--r-- | drivers/video/geode/Kconfig | 2 | ||||
-rw-r--r-- | drivers/video/omap2/dss/core.c | 20 | ||||
-rw-r--r-- | drivers/video/omap2/dss/hdmi.c | 4 | ||||
-rw-r--r-- | drivers/video/omap2/omapfb/omapfb-main.c | 3 | ||||
-rw-r--r-- | drivers/video/omap2/vrfb.c | 5 | ||||
-rw-r--r-- | drivers/video/ps3fb.c | 2 | ||||
-rw-r--r-- | drivers/video/pxa3xx-gcu.c | 1 | ||||
-rw-r--r-- | drivers/video/simplefb.c | 234 |
18 files changed, 312 insertions, 60 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index d71d60f94fc1..2e937bdace6f 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -2199,7 +2199,7 @@ config FB_XILINX config FB_GOLDFISH tristate "Goldfish Framebuffer" - depends on FB + depends on FB && HAS_DMA select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -2453,6 +2453,23 @@ config FB_HYPERV help This framebuffer driver supports Microsoft Hyper-V Synthetic Video. +config FB_SIMPLE + bool "Simple framebuffer support" + depends on (FB = y) && OF + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + Say Y if you want support for a simple frame-buffer. + + This driver assumes that the display hardware has been initialized + before the kernel boots, and the kernel will simply render to the + pre-allocated frame buffer surface. + + Configuration re: surface address, size, and format must be provided + through device tree, or potentially plain old platform data in the + future. + source "drivers/video/omap/Kconfig" source "drivers/video/omap2/Kconfig" source "drivers/video/exynos/Kconfig" diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 7234e4a959e8..e8bae8dd4804 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -166,6 +166,7 @@ obj-$(CONFIG_FB_MX3) += mx3fb.o obj-$(CONFIG_FB_DA8XX) += da8xx-fb.o obj-$(CONFIG_FB_MXS) += mxsfb.o obj-$(CONFIG_FB_SSD1307) += ssd1307fb.o +obj-$(CONFIG_FB_SIMPLE) += simplefb.o # the test framebuffer is last obj-$(CONFIG_FB_VIRTUAL) += vfb.o diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 540909de6247..effdb373b8db 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -223,8 +223,14 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo) static void exit_backlight(struct atmel_lcdfb_info *sinfo) { - if (sinfo->backlight) - backlight_device_unregister(sinfo->backlight); + if (!sinfo->backlight) + return; + + if (sinfo->backlight->ops) { + sinfo->backlight->props.power = FB_BLANK_POWERDOWN; + sinfo->backlight->ops->update_status(sinfo->backlight); + } + backlight_device_unregister(sinfo->backlight); } #else @@ -461,8 +467,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, if (info->fix.smem_len) { unsigned int smem_len = (var->xres_virtual * var->yres_virtual * ((var->bits_per_pixel + 7) / 8)); - if (smem_len > info->fix.smem_len) + if (smem_len > info->fix.smem_len) { + dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n", + info->fix.smem_len, smem_len); return -EINVAL; + } } /* Saturate vertical and horizontal timings at maximum values */ diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c index 700cac067b46..ebeb9715f061 100644 --- a/drivers/video/au1100fb.c +++ b/drivers/video/au1100fb.c @@ -385,8 +385,6 @@ int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); pgprot_val(vma->vm_page_prot) |= (6 << 9); //CCA=6 - vma->vm_flags |= VM_IO; - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) { diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c index 1b59054fc6a4..301224ecc950 100644 --- a/drivers/video/au1200fb.c +++ b/drivers/video/au1200fb.c @@ -1258,13 +1258,9 @@ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ - vma->vm_flags |= VM_IO; - return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot); - - return 0; } static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile index a862e9173ebe..48da25c96cd3 100644 --- a/drivers/video/console/Makefile +++ b/drivers/video/console/Makefile @@ -18,6 +18,8 @@ font-objs-$(CONFIG_FONT_MINI_4x6) += font_mini_4x6.o font-objs += $(font-objs-y) +obj-$(CONFIG_FONTS) += font.o + # Each configuration option enables a list of files. obj-$(CONFIG_DUMMY_CONSOLE) += dummycon.o diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 0d8f98c79a6c..cd8a8027f8ae 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -556,34 +556,6 @@ static int do_fbcon_takeover(int show_logo) return err; } -static int fbcon_takeover(int show_logo) -{ - int err, i; - - if (!num_registered_fb) - return -ENODEV; - - if (!show_logo) - logo_shown = FBCON_LOGO_DONTSHOW; - - for (i = first_fb_vc; i <= last_fb_vc; i++) - con2fb_map[i] = info_idx; - - err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, - fbcon_is_default); - - if (err) { - for (i = first_fb_vc; i <= last_fb_vc; i++) { - con2fb_map[i] = -1; - } - info_idx = -1; - } else { - fbcon_has_console_bind = 1; - } - - return err; -} - #ifdef MODULE static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, int cols, int rows, int new_cols, int new_rows) @@ -901,7 +873,7 @@ static int set_con2fb_map(int unit, int newidx, int user) /* * Low Level Operations */ -/* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ +/* NOTE: fbcon cannot be __init: it may be called from do_take_over_console later */ static int var_to_display(struct display *disp, struct fb_var_screeninfo *var, struct fb_info *info) @@ -3543,8 +3515,9 @@ static void fbcon_start(void) } } + do_fbcon_takeover(0); console_unlock(); - fbcon_takeover(0); + } } @@ -3648,8 +3621,8 @@ static void __exit fb_console_exit(void) fbcon_deinit_device(); device_destroy(fb_class, MKDEV(0, 0)); fbcon_exit(); + do_unregister_con_driver(&fb_con); console_unlock(); - unregister_con_driver(&fb_con); } module_exit(fb_console_exit); diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c index 0b67866cae10..296e94561556 100644 --- a/drivers/video/console/mdacon.c +++ b/drivers/video/console/mdacon.c @@ -585,10 +585,14 @@ static const struct consw mda_con = { int __init mda_console_init(void) { + int err; + if (mda_first_vc > mda_last_vc) return 1; - - return take_over_console(&mda_con, mda_first_vc-1, mda_last_vc-1, 0); + console_lock(); + err = do_take_over_console(&mda_con, mda_first_vc-1, mda_last_vc-1, 0); + console_unlock(); + return err; } static void __exit mda_console_exit(void) diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c index b05afd03729e..a6ab9299813c 100644 --- a/drivers/video/console/newport_con.c +++ b/drivers/video/console/newport_con.c @@ -297,7 +297,7 @@ static void newport_exit(void) newport_set_def_font(i, NULL); } -/* Can't be __init, take_over_console may call it later */ +/* Can't be __init, do_take_over_console may call it later */ static const char *newport_startup(void) { int i; @@ -746,6 +746,7 @@ static int newport_probe(struct gio_device *dev, const struct gio_device_id *id) { unsigned long newport_addr; + int err; if (!dev->resource.start) return -EINVAL; @@ -759,8 +760,10 @@ static int newport_probe(struct gio_device *dev, npregs = (struct newport_regs *)/* ioremap cannot fail */ ioremap(newport_addr, sizeof(struct newport_regs)); - - return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); + console_lock(); + err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); + console_unlock(); + return err; } static void newport_remove(struct gio_device *dev) diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c index 491c1c1baf4c..5f65ca3d8564 100644 --- a/drivers/video/console/sticon.c +++ b/drivers/video/console/sticon.c @@ -372,6 +372,7 @@ static const struct consw sti_con = { static int __init sticonsole_init(void) { + int err; /* already initialized ? */ if (sticon_sti) return 0; @@ -382,7 +383,10 @@ static int __init sticonsole_init(void) if (conswitchp == &dummy_con) { printk(KERN_INFO "sticon: Initializing STI text console.\n"); - return take_over_console(&sti_con, 0, MAX_NR_CONSOLES - 1, 1); + console_lock(); + err = do_take_over_console(&sti_con, 0, MAX_NR_CONSOLES - 1, 1); + console_unlock(); + return err; } return 0; } diff --git a/drivers/video/geode/Kconfig b/drivers/video/geode/Kconfig index 21e351a14593..1e8555284786 100644 --- a/drivers/video/geode/Kconfig +++ b/drivers/video/geode/Kconfig @@ -3,7 +3,7 @@ # config FB_GEODE bool "AMD Geode family framebuffer support" - depends on FB && PCI && X86 + depends on FB && PCI && (X86_32 || (X86 && COMPILE_TEST)) ---help--- Say 'Y' here to allow you to select framebuffer drivers for the AMD Geode family of processors. diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 60cc6fee6548..c9c2252e3719 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -53,6 +53,8 @@ static char *def_disp_name; module_param_named(def_disp, def_disp_name, charp, 0); MODULE_PARM_DESC(def_disp, "default display name"); +static bool dss_initialized; + const char *omapdss_get_default_display_name(void) { return core.default_display_name; @@ -66,6 +68,12 @@ enum omapdss_version omapdss_get_version(void) } EXPORT_SYMBOL(omapdss_get_version); +bool omapdss_is_initialized(void) +{ + return dss_initialized; +} +EXPORT_SYMBOL(omapdss_is_initialized); + struct platform_device *dss_get_core_pdev(void) { return core.pdev; @@ -603,6 +611,8 @@ static int __init omap_dss_init(void) return r; } + dss_initialized = true; + return 0; } @@ -633,7 +643,15 @@ static int __init omap_dss_init(void) static int __init omap_dss_init2(void) { - return omap_dss_register_drivers(); + int r; + + r = omap_dss_register_drivers(); + if (r) + return r; + + dss_initialized = true; + + return 0; } core_initcall(omap_dss_init); diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 17f4d55c621c..a109934c0478 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -1065,10 +1065,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev) mutex_init(&hdmi.ip_data.lock); res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0); - if (!res) { - DSSERR("can't get IORESOURCE_MEM HDMI\n"); - return -EINVAL; - } /* Base address taken from platform */ hdmi.ip_data.base_wp = devm_ioremap_resource(&pdev->dev, res); diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index c84bb8a4d0c4..856917b33616 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -2416,6 +2416,9 @@ static int omapfb_probe(struct platform_device *pdev) DBG("omapfb_probe\n"); + if (omapdss_is_initialized() == false) + return -EPROBE_DEFER; + if (pdev->num_resources != 0) { dev_err(&pdev->dev, "probed for an unknown device\n"); r = -ENODEV; diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c index 5261229c79af..f346b02eee1d 100644 --- a/drivers/video/omap2/vrfb.c +++ b/drivers/video/omap2/vrfb.c @@ -353,11 +353,6 @@ static int __init vrfb_probe(struct platform_device *pdev) /* first resource is the register res, the rest are vrfb contexts */ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - dev_err(&pdev->dev, "can't get vrfb base address\n"); - return -EINVAL; - } - vrfb_base = devm_ioremap_resource(&pdev->dev, mem); if (IS_ERR(vrfb_base)) return PTR_ERR(vrfb_base); diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c index d9f08c653d62..dbfe2c18a434 100644 --- a/drivers/video/ps3fb.c +++ b/drivers/video/ps3fb.c @@ -710,7 +710,7 @@ static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma) r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len); dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", - info->fix.smem_start + vma->vm_pgoff << PAGE_SHIFT, + info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT), vma->vm_start); return r; diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c index 97563c55af63..7cf0b13d061b 100644 --- a/drivers/video/pxa3xx-gcu.c +++ b/drivers/video/pxa3xx-gcu.c @@ -494,7 +494,6 @@ pxa3xx_gcu_misc_mmap(struct file *file, struct vm_area_struct *vma) if (size != resource_size(priv->resource_mem)) return -EINVAL; - vma->vm_flags |= VM_IO; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); return io_remap_pfn_range(vma, vma->vm_start, diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c new file mode 100644 index 000000000000..e2e9e3e61b72 --- /dev/null +++ b/drivers/video/simplefb.c @@ -0,0 +1,234 @@ +/* + * Simplest possible simple frame-buffer driver, as a platform device + * + * Copyright (c) 2013, Stephen Warren + * + * Based on q40fb.c, which was: + * Copyright (C) 2001 Richard Zidlicky <rz@linux-m68k.org> + * + * Also based on offb.c, which was: + * Copyright (C) 1997 Geert Uytterhoeven + * Copyright (C) 1996 Paul Mackerras + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include <linux/errno.h> +#include <linux/fb.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +static struct fb_fix_screeninfo simplefb_fix = { + .id = "simple", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .accel = FB_ACCEL_NONE, +}; + +static struct fb_var_screeninfo simplefb_var = { + .height = -1, + .width = -1, + .activate = FB_ACTIVATE_NOW, + .vmode = FB_VMODE_NONINTERLACED, +}; + +static int simplefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info) +{ + u32 *pal = info->pseudo_palette; + u32 cr = red >> (16 - info->var.red.length); + u32 cg = green >> (16 - info->var.green.length); + u32 cb = blue >> (16 - info->var.blue.length); + u32 value; + + if (regno >= 16) + return -EINVAL; + + value = (cr << info->var.red.offset) | + (cg << info->var.green.offset) | + (cb << info->var.blue.offset); + if (info->var.transp.length > 0) { + u32 mask = (1 << info->var.transp.length) - 1; + mask <<= info->var.transp.offset; + value |= mask; + } + pal[regno] = value; + + return 0; +} + +static struct fb_ops simplefb_ops = { + .owner = THIS_MODULE, + .fb_setcolreg = simplefb_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +struct simplefb_format { + const char *name; + u32 bits_per_pixel; + struct fb_bitfield red; + struct fb_bitfield green; + struct fb_bitfield blue; + struct fb_bitfield transp; +}; + +static struct simplefb_format simplefb_formats[] = { + { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0} }, +}; + +struct simplefb_params { + u32 width; + u32 height; + u32 stride; + struct simplefb_format *format; +}; + +static int simplefb_parse_dt(struct platform_device *pdev, + struct simplefb_params *params) +{ + struct device_node *np = pdev->dev.of_node; + int ret; + const char *format; + int i; + + ret = of_property_read_u32(np, "width", ¶ms->width); + if (ret) { + dev_err(&pdev->dev, "Can't parse width property\n"); + return ret; + } + + ret = of_property_read_u32(np, "height", ¶ms->height); + if (ret) { + dev_err(&pdev->dev, "Can't parse height property\n"); + return ret; + } + + ret = of_property_read_u32(np, "stride", ¶ms->stride); + if (ret) { + dev_err(&pdev->dev, "Can't parse stride property\n"); + return ret; + } + + ret = of_property_read_string(np, "format", &format); + if (ret) { + dev_err(&pdev->dev, "Can't parse format property\n"); + return ret; + } + params->format = NULL; + for (i = 0; i < ARRAY_SIZE(simplefb_formats); i++) { + if (strcmp(format, simplefb_formats[i].name)) + continue; + params->format = &simplefb_formats[i]; + break; + } + if (!params->format) { + dev_err(&pdev->dev, "Invalid format value\n"); + return -EINVAL; + } + + return 0; +} + +static int simplefb_probe(struct platform_device *pdev) +{ + int ret; + struct simplefb_params params; + struct fb_info *info; + struct resource *mem; + + if (fb_get_options("simplefb", NULL)) + return -ENODEV; + + ret = simplefb_parse_dt(pdev, ¶ms); + if (ret) + return ret; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "No memory resource\n"); + return -EINVAL; + } + + info = framebuffer_alloc(sizeof(u32) * 16, &pdev->dev); + if (!info) + return -ENOMEM; + platform_set_drvdata(pdev, info); + + info->fix = simplefb_fix; + info->fix.smem_start = mem->start; + info->fix.smem_len = resource_size(mem); + info->fix.line_length = params.stride; + + info->var = simplefb_var; + info->var.xres = params.width; + info->var.yres = params.height; + info->var.xres_virtual = params.width; + info->var.yres_virtual = params.height; + info->var.bits_per_pixel = params.format->bits_per_pixel; + info->var.red = params.format->red; + info->var.green = params.format->green; + info->var.blue = params.format->blue; + info->var.transp = params.format->transp; + + info->fbops = &simplefb_ops; + info->flags = FBINFO_DEFAULT; + info->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start, + info->fix.smem_len); + if (!info->screen_base) { + framebuffer_release(info); + return -ENODEV; + } + info->pseudo_palette = (void *)(info + 1); + + ret = register_framebuffer(info); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret); + framebuffer_release(info); + return ret; + } + + dev_info(&pdev->dev, "fb%d: simplefb registered!\n", info->node); + + return 0; +} + +static int simplefb_remove(struct platform_device *pdev) +{ + struct fb_info *info = platform_get_drvdata(pdev); + + unregister_framebuffer(info); + framebuffer_release(info); + + return 0; +} + +static const struct of_device_id simplefb_of_match[] = { + { .compatible = "simple-framebuffer", }, + { }, +}; +MODULE_DEVICE_TABLE(of, simplefb_of_match); + +static struct platform_driver simplefb_driver = { + .driver = { + .name = "simple-framebuffer", + .owner = THIS_MODULE, + .of_match_table = simplefb_of_match, + }, + .probe = simplefb_probe, + .remove = simplefb_remove, +}; +module_platform_driver(simplefb_driver); + +MODULE_AUTHOR("Stephen Warren <swarren@wwwdotorg.org>"); +MODULE_DESCRIPTION("Simple framebuffer driver"); +MODULE_LICENSE("GPL v2"); |