diff options
Diffstat (limited to 'drivers/video/maxinefb.c')
| -rw-r--r-- | drivers/video/maxinefb.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/drivers/video/maxinefb.c b/drivers/video/maxinefb.c deleted file mode 100644 index 5cf52d3c8e75..000000000000 --- a/drivers/video/maxinefb.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * linux/drivers/video/maxinefb.c - * - * DECstation 5000/xx onboard framebuffer support ... derived from: - * "HP300 Topcat framebuffer support (derived from macfb of all things) - * Phil Blundell <philb@gnu.org> 1998", the original code can be - * found in the file hpfb.c in the same directory. - * - * DECstation related code Copyright (C) 1999,2000,2001 by - * Michael Engel <engel@unix-ag.org> and - * Karsten Merker <merker@linuxtag.org>. - * 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. - * - */ - -/* - * Changes: - * 2001/01/27 removed debugging and testing code, fixed fb_ops - * initialization which had caused a crash before, - * general cleanup, first official release (KM) - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/fb.h> -#include <video/maxinefb.h> - -/* bootinfo.h defines the machine type values, needed when checking */ -/* whether are really running on a maxine, KM */ -#include <asm/bootinfo.h> - -static struct fb_info fb_info; - -static struct fb_var_screeninfo maxinefb_defined = { - .xres = 1024, - .yres = 768, - .xres_virtual = 1024, - .yres_virtual = 768, - .bits_per_pixel =8, - .activate = FB_ACTIVATE_NOW, - .height = -1, - .width = -1, - .vmode = FB_VMODE_NONINTERLACED, -}; - -static struct fb_fix_screeninfo maxinefb_fix = { - .id = "Maxine", - .smem_len = (1024*768), - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_PSEUDOCOLOR, - .line_length = 1024, -}; - -/* Handle the funny Inmos RamDAC/video controller ... */ - -void maxinefb_ims332_write_register(int regno, register unsigned int val) -{ - register unsigned char *regs = (char *) MAXINEFB_IMS332_ADDRESS; - unsigned char *wptr; - - wptr = regs + 0xa0000 + (regno << 4); - *((volatile unsigned int *) (regs)) = (val >> 8) & 0xff00; - *((volatile unsigned short *) (wptr)) = val; -} - -unsigned int maxinefb_ims332_read_register(int regno) -{ - register unsigned char *regs = (char *) MAXINEFB_IMS332_ADDRESS; - unsigned char *rptr; - register unsigned int j, k; - - rptr = regs + 0x80000 + (regno << 4); - j = *((volatile unsigned short *) rptr); - k = *((volatile unsigned short *) regs); - - return (j & 0xffff) | ((k & 0xff00) << 8); -} - -/* Set the palette */ -static int maxinefb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, struct fb_info *info) -{ - /* value to be written into the palette reg. */ - unsigned long hw_colorvalue = 0; - - if (regno > 255) - return 1; - - red >>= 8; /* The cmap fields are 16 bits */ - green >>= 8; /* wide, but the harware colormap */ - blue >>= 8; /* registers are only 8 bits wide */ - - hw_colorvalue = (blue << 16) + (green << 8) + (red); - - maxinefb_ims332_write_register(IMS332_REG_COLOR_PALETTE + regno, - hw_colorvalue); - return 0; -} - -static struct fb_ops maxinefb_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = maxinefb_setcolreg, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - -int __init maxinefb_init(void) -{ - unsigned long fboff; - unsigned long fb_start; - int i; - - if (fb_get_options("maxinefb", NULL)) - return -ENODEV; - - /* Validate we're on the proper machine type */ - if (mips_machtype != MACH_DS5000_XX) { - return -EINVAL; - } - - printk(KERN_INFO "Maxinefb: Personal DECstation detected\n"); - printk(KERN_INFO "Maxinefb: initializing onboard framebuffer\n"); - - /* Framebuffer display memory base address */ - fb_start = DS5000_xx_ONBOARD_FBMEM_START; - - /* Clear screen */ - for (fboff = fb_start; fboff < fb_start + 0x1ffff; fboff++) - *(volatile unsigned char *)fboff = 0x0; - - maxinefb_fix.smem_start = fb_start; - - /* erase hardware cursor */ - for (i = 0; i < 512; i++) { - maxinefb_ims332_write_register(IMS332_REG_CURSOR_RAM + i, - 0); - /* - if (i&0x8 == 0) - maxinefb_ims332_write_register (IMS332_REG_CURSOR_RAM + i, 0x0f); - else - maxinefb_ims332_write_register (IMS332_REG_CURSOR_RAM + i, 0xf0); - */ - } - - fb_info.fbops = &maxinefb_ops; - fb_info.screen_base = (char *)maxinefb_fix.smem_start; - fb_info.var = maxinefb_defined; - fb_info.fix = maxinefb_fix; - fb_info.flags = FBINFO_DEFAULT; - - fb_alloc_cmap(&fb_info.cmap, 256, 0); - - if (register_framebuffer(&fb_info) < 0) - return 1; - return 0; -} - -static void __exit maxinefb_exit(void) -{ - unregister_framebuffer(&fb_info); -} - -#ifdef MODULE -MODULE_LICENSE("GPL"); -#endif -module_init(maxinefb_init); -module_exit(maxinefb_exit); - |
