^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * linux/drivers/video/68328fb.c -- Low level implementation of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * mc68x328 LCD frame buffer device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2003 Georges Menie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * This driver assumes an already configured controller (e.g. from config.c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Keep the code clean of board specific initialization.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * This code has not been tested with colors, colormap management functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * are minimal (no colormap data written to the 68328 registers...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * initial version of this driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Copyright (C) 1998,1999 Kenneth Albanowski <kjahds@kjahds.com>,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * The Silver Hammer Group, Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * this version is based on :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * linux/drivers/video/vfb.c -- Virtual frame buffer device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * Copyright (C) 2002 James Simmons
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * Copyright (C) 1997 Geert Uytterhoeven
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * License. See the file COPYING in the main directory of this archive for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #if defined(CONFIG_M68VZ328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include <asm/MC68VZ328.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #elif defined(CONFIG_M68EZ328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <asm/MC68EZ328.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #elif defined(CONFIG_M68328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <asm/MC68328.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #error wrong architecture for the MC68x328 frame buffer device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static u_long videomemory;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static u_long videomemorysize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static struct fb_info fb_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static u32 mc68x328fb_pseudo_palette[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static struct fb_var_screeninfo mc68x328fb_default __initdata = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .red = { 0, 8, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .green = { 0, 8, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .blue = { 0, 8, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .activate = FB_ACTIVATE_TEST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .height = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .width = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .pixclock = 20000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .left_margin = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .right_margin = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .upper_margin = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .lower_margin = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .hsync_len = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .vsync_len = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .vmode = FB_VMODE_NONINTERLACED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static const struct fb_fix_screeninfo mc68x328fb_fix __initconst = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .id = "68328fb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .type = FB_TYPE_PACKED_PIXELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .xpanstep = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .ypanstep = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .ywrapstep = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .accel = FB_ACCEL_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Interface used by the world
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int mc68x328fb_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int mc68x328fb_setup(char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static int mc68x328fb_set_par(struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static int mc68x328fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) u_int transp, struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static int mc68x328fb_mmap(struct fb_info *info, struct vm_area_struct *vma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static const struct fb_ops mc68x328fb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .fb_check_var = mc68x328fb_check_var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .fb_set_par = mc68x328fb_set_par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .fb_setcolreg = mc68x328fb_setcolreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .fb_pan_display = mc68x328fb_pan_display,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .fb_fillrect = cfb_fillrect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .fb_copyarea = cfb_copyarea,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .fb_imageblit = cfb_imageblit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .fb_mmap = mc68x328fb_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * Internal routines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static u_long get_line_length(int xres_virtual, int bpp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u_long length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) length = xres_virtual * bpp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) length = (length + 31) & ~31;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) length >>= 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return (length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Setting the video mode has been split into two parts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * First part, xxxfb_check_var, must not write anything
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) * to hardware, it should only verify and adjust var.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * This means it doesn't alter par but it does use hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * data from it to check this var.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) u_long line_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * as FB_VMODE_SMOOTH_XPAN is only used internally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (var->vmode & FB_VMODE_CONUPDATE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) var->vmode |= FB_VMODE_YWRAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) var->xoffset = info->var.xoffset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) var->yoffset = info->var.yoffset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * Some very basic checks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!var->xres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) var->xres = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) if (!var->yres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) var->yres = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (var->xres > var->xres_virtual)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) var->xres_virtual = var->xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (var->yres > var->yres_virtual)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) var->yres_virtual = var->yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (var->bits_per_pixel <= 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) var->bits_per_pixel = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) else if (var->bits_per_pixel <= 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) var->bits_per_pixel = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) else if (var->bits_per_pixel <= 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) var->bits_per_pixel = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) else if (var->bits_per_pixel <= 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) var->bits_per_pixel = 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) else if (var->bits_per_pixel <= 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) var->bits_per_pixel = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (var->xres_virtual < var->xoffset + var->xres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) var->xres_virtual = var->xoffset + var->xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (var->yres_virtual < var->yoffset + var->yres)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) var->yres_virtual = var->yoffset + var->yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * Memory limit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) line_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) get_line_length(var->xres_virtual, var->bits_per_pixel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (line_length * var->yres_virtual > videomemorysize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * Now that we checked it we alter var. The reason being is that the video
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * mode passed in might not work but slight changes to it might make it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * work. This way we let the user know what is acceptable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) switch (var->bits_per_pixel) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) var->red.length = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) var->green.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) var->green.length = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) var->blue.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) var->blue.length = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) var->transp.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) var->transp.length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) var->red.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) var->green.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) var->green.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) var->blue.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) var->blue.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) var->transp.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) var->transp.length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) case 16: /* RGBA 5551 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (var->transp.length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) var->red.length = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) var->green.offset = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) var->green.length = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) var->blue.offset = 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) var->blue.length = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) var->transp.offset = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) var->transp.length = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) } else { /* RGB 565 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) var->red.length = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) var->green.offset = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) var->green.length = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) var->blue.offset = 11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) var->blue.length = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) var->transp.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) var->transp.length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) case 24: /* RGB 888 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) var->red.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) var->green.offset = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) var->green.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) var->blue.offset = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) var->blue.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) var->transp.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) var->transp.length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) case 32: /* RGBA 8888 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) var->red.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) var->green.offset = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) var->green.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) var->blue.offset = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) var->blue.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) var->transp.offset = 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) var->transp.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) var->red.msb_right = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) var->green.msb_right = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) var->blue.msb_right = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) var->transp.msb_right = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /* This routine actually sets the video mode. It's in here where we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * the hardware state info->par and fix which can be affected by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * change in par. For this driver it doesn't do much.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static int mc68x328fb_set_par(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) info->fix.line_length = get_line_length(info->var.xres_virtual,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) info->var.bits_per_pixel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * Set a single color register. The values supplied are already
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * rounded down to the hardware's capabilities (according to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * entries in the var structure). Return != 0 for invalid regno.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static int mc68x328fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) u_int transp, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (regno >= 256) /* no. of hw registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * Program hardware... do anything you want with transp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /* grayscale works only partially under directcolor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (info->var.grayscale) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) /* grayscale = 0.30*R + 0.59*G + 0.11*B */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) red = green = blue =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) (red * 77 + green * 151 + blue * 28) >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) /* Directcolor:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * var->{color}.offset contains start of bitfield
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * var->{color}.length contains length of bitfield
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * {hardwarespecific} contains width of RAMDAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * cmap[X] is programmed to (X << red.offset) | (X << green.offset) | (X << blue.offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * RAMDAC[X] is programmed to (red, green, blue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * Pseudocolor:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * uses offset = 0 && length = RAMDAC register width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * var->{color}.offset is 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * var->{color}.length contains width of DAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * cmap is not used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * RAMDAC[X] is programmed to (red, green, blue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * Truecolor:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * does not use DAC. Usually 3 are present.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * var->{color}.offset contains start of bitfield
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * var->{color}.length contains length of bitfield
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * cmap is programmed to (red << red.offset) | (green << green.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * (blue << blue.offset) | (transp << transp.offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * RAMDAC does not exist
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) switch (info->fix.visual) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) case FB_VISUAL_TRUECOLOR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) case FB_VISUAL_PSEUDOCOLOR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) red = CNVT_TOHW(red, info->var.red.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) green = CNVT_TOHW(green, info->var.green.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) blue = CNVT_TOHW(blue, info->var.blue.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) transp = CNVT_TOHW(transp, info->var.transp.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) case FB_VISUAL_DIRECTCOLOR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) red = CNVT_TOHW(red, 8); /* expect 8 bit DAC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) green = CNVT_TOHW(green, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) blue = CNVT_TOHW(blue, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* hey, there is bug in transp handling... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) transp = CNVT_TOHW(transp, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) #undef CNVT_TOHW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* Truecolor has hardware independent palette */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) u32 v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (regno >= 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) v = (red << info->var.red.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) (green << info->var.green.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) (blue << info->var.blue.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) (transp << info->var.transp.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) switch (info->var.bits_per_pixel) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) case 16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) ((u32 *) (info->pseudo_palette))[regno] = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) case 24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case 32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) ((u32 *) (info->pseudo_palette))[regno] = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * Pan or Wrap the Display
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (var->vmode & FB_VMODE_YWRAP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (var->yoffset < 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) || var->yoffset >= info->var.yres_virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) || var->xoffset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (var->xoffset + info->var.xres > info->var.xres_virtual ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) var->yoffset + info->var.yres > info->var.yres_virtual)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) info->var.xoffset = var->xoffset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) info->var.yoffset = var->yoffset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) if (var->vmode & FB_VMODE_YWRAP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) info->var.vmode |= FB_VMODE_YWRAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) info->var.vmode &= ~FB_VMODE_YWRAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) * Most drivers don't need their own mmap function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) static int mc68x328fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) #ifndef MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) /* this is uClinux (no MMU) specific code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) vma->vm_start = videomemory;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) int __init mc68x328fb_setup(char *options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (!options || !*options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * Initialisation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) int __init mc68x328fb_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) #ifndef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) char *option = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (fb_get_options("68328fb", &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) mc68x328fb_setup(option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * initialize the default mode from the LCD controller registers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) mc68x328fb_default.xres = LXMAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) mc68x328fb_default.yres = LYMAX+1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) mc68x328fb_default.xres_virtual = mc68x328fb_default.xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) mc68x328fb_default.yres_virtual = mc68x328fb_default.yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) mc68x328fb_default.bits_per_pixel = 1 + (LPICF & 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) videomemory = LSSA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) videomemorysize = (mc68x328fb_default.xres_virtual+7) / 8 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) mc68x328fb_default.yres_virtual * mc68x328fb_default.bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) fb_info.screen_base = (void *)videomemory;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) fb_info.fbops = &mc68x328fb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) fb_info.var = mc68x328fb_default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) fb_info.fix = mc68x328fb_fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) fb_info.fix.smem_start = videomemory;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) fb_info.fix.smem_len = videomemorysize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) fb_info.fix.line_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) get_line_length(mc68x328fb_default.xres_virtual, mc68x328fb_default.bits_per_pixel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) fb_info.fix.visual = (mc68x328fb_default.bits_per_pixel) == 1 ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) FB_VISUAL_MONO10 : FB_VISUAL_PSEUDOCOLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (fb_info.var.bits_per_pixel == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) fb_info.var.red.length = fb_info.var.green.length = fb_info.var.blue.length = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) fb_info.var.red.offset = fb_info.var.green.offset = fb_info.var.blue.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) fb_info.pseudo_palette = &mc68x328fb_pseudo_palette;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (fb_alloc_cmap(&fb_info.cmap, 256, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (register_framebuffer(&fb_info) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) fb_dealloc_cmap(&fb_info.cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) fb_info(&fb_info, "%s frame buffer device\n", fb_info.fix.id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) fb_info(&fb_info, "%dx%dx%d at 0x%08lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) mc68x328fb_default.xres_virtual,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) mc68x328fb_default.yres_virtual,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 1 << mc68x328fb_default.bits_per_pixel, videomemory);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) module_init(mc68x328fb_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) #ifdef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) static void __exit mc68x328fb_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) unregister_framebuffer(&fb_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) fb_dealloc_cmap(&fb_info.cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) module_exit(mc68x328fb_cleanup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) #endif /* MODULE */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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