diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/fm2fb.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | op-kernel-dev-f7018c21350204c4cf628462f229d44d03545254.zip op-kernel-dev-f7018c21350204c4cf628462f229d44d03545254.tar.gz |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/fm2fb.c')
-rw-r--r-- | drivers/video/fm2fb.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/drivers/video/fm2fb.c b/drivers/video/fm2fb.c deleted file mode 100644 index e69d47a..0000000 --- a/drivers/video/fm2fb.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - * linux/drivers/video/fm2fb.c -- BSC FrameMaster II/Rainbow II frame buffer - * device - * - * Copyright (C) 1998 Steffen A. Mork (linux-dev@morknet.de) - * Copyright (C) 1999 Geert Uytterhoeven - * - * Written for 2.0.x by Steffen A. Mork - * Ported to 2.1.x by Geert Uytterhoeven - * Ported to new api by James Simmons - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/zorro.h> -#include <asm/io.h> - -/* - * Some technical notes: - * - * The BSC FrameMaster II (or Rainbow II) is a simple very dumb - * frame buffer which allows to display 24 bit true color images. - * Each pixel is 32 bit width so it's very easy to maintain the - * frame buffer. One long word has the following layout: - * AARRGGBB which means: AA the alpha channel byte, RR the red - * channel, GG the green channel and BB the blue channel. - * - * The FrameMaster II supports the following video modes. - * - PAL/NTSC - * - interlaced/non interlaced - * - composite sync/sync/sync over green - * - * The resolution is to the following both ones: - * - 768x576 (PAL) - * - 768x480 (NTSC) - * - * This means that pixel access per line is fixed due to the - * fixed line width. In case of maximal resolution the frame - * buffer needs an amount of memory of 1.769.472 bytes which - * is near to 2 MByte (the allocated address space of Zorro2). - * The memory is channel interleaved. That means every channel - * owns four VRAMs. Unfortunately most FrameMasters II are - * not assembled with memory for the alpha channel. In this - * case it could be possible to add the frame buffer into the - * normal memory pool. - * - * At relative address 0x1ffff8 of the frame buffers base address - * there exists a control register with the number of - * four control bits. They have the following meaning: - * bit value meaning - * - * 0 1 0=interlaced/1=non interlaced - * 1 2 0=video out disabled/1=video out enabled - * 2 4 0=normal mode as jumpered via JP8/1=complement mode - * 3 8 0=read onboard ROM/1 normal operation (required) - * - * As mentioned above there are several jumper. I think there - * is not very much information about the FrameMaster II in - * the world so I add these information for completeness. - * - * JP1 interlace selection (1-2 non interlaced/2-3 interlaced) - * JP2 wait state creation (leave as is!) - * JP3 wait state creation (leave as is!) - * JP4 modulate composite sync on green output (1-2 composite - * sync on green channel/2-3 normal composite sync) - * JP5 create test signal, shorting this jumper will create - * a white screen - * JP6 sync creation (1-2 composite sync/2-3 H-sync output) - * JP8 video mode (1-2 PAL/2-3 NTSC) - * - * With the following jumpering table you can connect the - * FrameMaster II to a normal TV via SCART connector: - * JP1: 2-3 - * JP4: 2-3 - * JP6: 2-3 - * JP8: 1-2 (means PAL for Europe) - * - * NOTE: - * There is no other possibility to change the video timings - * except the interlaced/non interlaced, sync control and the - * video mode PAL (50 Hz)/NTSC (60 Hz). Inside this - * FrameMaster II driver are assumed values to avoid anomalies - * to a future X server. Except the pixel clock is really - * constant at 30 MHz. - * - * 9 pin female video connector: - * - * 1 analog red 0.7 Vss - * 2 analog green 0.7 Vss - * 3 analog blue 0.7 Vss - * 4 H-sync TTL - * 5 V-sync TTL - * 6 ground - * 7 ground - * 8 ground - * 9 ground - * - * Some performance notes: - * The FrameMaster II was not designed to display a console - * this driver would do! It was designed to display still true - * color images. Imagine: When scroll up a text line there - * must copied ca. 1.7 MBytes to another place inside this - * frame buffer. This means 1.7 MByte read and 1.7 MByte write - * over the slow 16 bit wide Zorro2 bus! A scroll of one - * line needs 1 second so do not expect to much from this - * driver - he is at the limit! - * - */ - -/* - * definitions - */ - -#define FRAMEMASTER_SIZE 0x200000 -#define FRAMEMASTER_REG 0x1ffff8 - -#define FRAMEMASTER_NOLACE 1 -#define FRAMEMASTER_ENABLE 2 -#define FRAMEMASTER_COMPL 4 -#define FRAMEMASTER_ROM 8 - -static volatile unsigned char *fm2fb_reg; - -static struct fb_fix_screeninfo fb_fix = { - .smem_len = FRAMEMASTER_REG, - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_TRUECOLOR, - .line_length = (768 << 2), - .mmio_len = (8), - .accel = FB_ACCEL_NONE, -}; - -static int fm2fb_mode = -1; - -#define FM2FB_MODE_PAL 0 -#define FM2FB_MODE_NTSC 1 - -static struct fb_var_screeninfo fb_var_modes[] = { - { - /* 768 x 576, 32 bpp (PAL) */ - 768, 576, 768, 576, 0, 0, 32, 0, - { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 8, 0 }, - 0, FB_ACTIVATE_NOW, -1, -1, FB_ACCEL_NONE, - 33333, 10, 102, 10, 5, 80, 34, FB_SYNC_COMP_HIGH_ACT, 0 - }, { - /* 768 x 480, 32 bpp (NTSC - not supported yet */ - 768, 480, 768, 480, 0, 0, 32, 0, - { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 8, 0 }, - 0, FB_ACTIVATE_NOW, -1, -1, FB_ACCEL_NONE, - 33333, 10, 102, 10, 5, 80, 34, FB_SYNC_COMP_HIGH_ACT, 0 - } -}; - - /* - * Interface used by the world - */ - -static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, - u_int transp, struct fb_info *info); -static int fm2fb_blank(int blank, struct fb_info *info); - -static struct fb_ops fm2fb_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = fm2fb_setcolreg, - .fb_blank = fm2fb_blank, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - - /* - * Blank the display. - */ -static int fm2fb_blank(int blank, struct fb_info *info) -{ - unsigned char t = FRAMEMASTER_ROM; - - if (!blank) - t |= FRAMEMASTER_ENABLE | FRAMEMASTER_NOLACE; - fm2fb_reg[0] = t; - return 0; -} - - /* - * Set a single color register. The values supplied are already - * rounded down to the hardware's capabilities (according to the - * entries in the var structure). Return != 0 for invalid regno. - */ -static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, - u_int transp, struct fb_info *info) -{ - if (regno < 16) { - red >>= 8; - green >>= 8; - blue >>= 8; - - ((u32*)(info->pseudo_palette))[regno] = (red << 16) | - (green << 8) | blue; - } - - return 0; -} - - /* - * Initialisation - */ - -static int fm2fb_probe(struct zorro_dev *z, const struct zorro_device_id *id); - -static struct zorro_device_id fm2fb_devices[] = { - { ZORRO_PROD_BSC_FRAMEMASTER_II }, - { ZORRO_PROD_HELFRICH_RAINBOW_II }, - { 0 } -}; -MODULE_DEVICE_TABLE(zorro, fm2fb_devices); - -static struct zorro_driver fm2fb_driver = { - .name = "fm2fb", - .id_table = fm2fb_devices, - .probe = fm2fb_probe, -}; - -static int fm2fb_probe(struct zorro_dev *z, const struct zorro_device_id *id) -{ - struct fb_info *info; - unsigned long *ptr; - int is_fm; - int x, y; - - is_fm = z->id == ZORRO_PROD_BSC_FRAMEMASTER_II; - - if (!zorro_request_device(z,"fm2fb")) - return -ENXIO; - - info = framebuffer_alloc(16 * sizeof(u32), &z->dev); - if (!info) { - zorro_release_device(z); - return -ENOMEM; - } - - if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { - framebuffer_release(info); - zorro_release_device(z); - return -ENOMEM; - } - - /* assigning memory to kernel space */ - fb_fix.smem_start = zorro_resource_start(z); - info->screen_base = ioremap(fb_fix.smem_start, FRAMEMASTER_SIZE); - fb_fix.mmio_start = fb_fix.smem_start + FRAMEMASTER_REG; - fm2fb_reg = (unsigned char *)(info->screen_base+FRAMEMASTER_REG); - - strcpy(fb_fix.id, is_fm ? "FrameMaster II" : "Rainbow II"); - - /* make EBU color bars on display */ - ptr = (unsigned long *)fb_fix.smem_start; - for (y = 0; y < 576; y++) { - for (x = 0; x < 96; x++) *ptr++ = 0xffffff;/* white */ - for (x = 0; x < 96; x++) *ptr++ = 0xffff00;/* yellow */ - for (x = 0; x < 96; x++) *ptr++ = 0x00ffff;/* cyan */ - for (x = 0; x < 96; x++) *ptr++ = 0x00ff00;/* green */ - for (x = 0; x < 96; x++) *ptr++ = 0xff00ff;/* magenta */ - for (x = 0; x < 96; x++) *ptr++ = 0xff0000;/* red */ - for (x = 0; x < 96; x++) *ptr++ = 0x0000ff;/* blue */ - for (x = 0; x < 96; x++) *ptr++ = 0x000000;/* black */ - } - fm2fb_blank(0, info); - - if (fm2fb_mode == -1) - fm2fb_mode = FM2FB_MODE_PAL; - - info->fbops = &fm2fb_ops; - info->var = fb_var_modes[fm2fb_mode]; - info->pseudo_palette = info->par; - info->par = NULL; - info->fix = fb_fix; - info->flags = FBINFO_DEFAULT; - - if (register_framebuffer(info) < 0) { - fb_dealloc_cmap(&info->cmap); - iounmap(info->screen_base); - framebuffer_release(info); - zorro_release_device(z); - return -EINVAL; - } - fb_info(info, "%s frame buffer device\n", fb_fix.id); - return 0; -} - -int __init fm2fb_setup(char *options) -{ - char *this_opt; - - if (!options || !*options) - return 0; - - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!strncmp(this_opt, "pal", 3)) - fm2fb_mode = FM2FB_MODE_PAL; - else if (!strncmp(this_opt, "ntsc", 4)) - fm2fb_mode = FM2FB_MODE_NTSC; - } - return 0; -} - -int __init fm2fb_init(void) -{ - char *option = NULL; - - if (fb_get_options("fm2fb", &option)) - return -ENODEV; - fm2fb_setup(option); - return zorro_register_driver(&fm2fb_driver); -} - -module_init(fm2fb_init); -MODULE_LICENSE("GPL"); |