/*
- * linux/arch/m68knommu/console/68328fb.c -- Low level implementation of the
- * mc68328 LCD frame buffer device
+ * linux/drivers/video/68328fb.c -- Low level implementation of the
+ * mc68x328 LCD frame buffer device
*
- * Copyright (C) 1998,1999 Kenneth Albanowski <kjahds@kjahds.com>,
- * The Silver Hammer Group, Ltd.
- *
- *
- * This file is based on the Amiga CyberVision frame buffer device (Cyberfb.c):
+ * Copyright (C) 2003 Georges Menie
*
- * Copyright (C) 1996 Martin Apel
- * Geert Uytterhoeven
+ * This driver assumes an already configured controller (e.g. from config.c)
+ * Keep the code clean of board specific initialization.
*
+ * This code has not been tested with colors, colormap management functions
+ * are minimal (no colormap data written to the 68328 registers...)
*
- * This file is based on the Amiga frame buffer device (amifb.c):
+ * initial version of this driver:
+ * Copyright (C) 1998,1999 Kenneth Albanowski <kjahds@kjahds.com>,
+ * The Silver Hammer Group, Ltd.
*
- * Copyright (C) 1995 Geert Uytterhoeven
+ * this version is based on :
*
+ * linux/drivers/video/vfb.c -- Virtual frame buffer device
*
- * History:
- * - 17 Feb 98: Original version by Kenneth Albanowski <kjahds@kjahds.com>
+ * Copyright (C) 2002 James Simmons
*
+ * Copyright (C) 1997 Geert Uytterhoeven
*
- * 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.
+ * 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/tty.h>
#include <linux/slab.h>
+#include <linux/vmalloc.h>
#include <linux/delay.h>
-#include <linux/config.h>
-#include <asm/segment.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
+#include <linux/interrupt.h>
+#include <asm/uaccess.h>
#include <linux/fb.h>
+#include <linux/init.h>
+
+#if defined(CONFIG_M68VZ328)
+#include <asm/MC68VZ328.h>
+#elif defined(CONFIG_M68EZ328)
+#include <asm/MC68EZ328.h>
+#elif defined(CONFIG_M68328)
+#include <asm/MC68328.h>
+#else
+#error wrong architecture for the MC68x328 frame buffer device
+#endif
-#define arraysize(x) (sizeof(x)/sizeof(*(x)))
-
-static struct fb_info fb_info;
+#if defined(CONFIG_FB_68328_INVERT)
+#define MC68X328FB_MONO_VISUAL FB_VISUAL_MONO01
+#else
+#define MC68X328FB_MONO_VISUAL FB_VISUAL_MONO10
+#endif
- /*
- * mc68328vision Graphics Board
- */
+static u_long videomemory;
+static u_long videomemorysize;
-#define CYBER8_WIDTH 1152
-#define CYBER8_HEIGHT 886
-#define CYBER8_PIXCLOCK 12500 /* ++Geert: Just a guess */
+static struct fb_info fb_info;
+static u32 mc68x328fb_pseudo_palette[17];
+
+static struct fb_var_screeninfo mc68x328fb_default __initdata = {
+ .red = { 0, 8, 0 },
+ .green = { 0, 8, 0 },
+ .blue = { 0, 8, 0 },
+ .activate = FB_ACTIVATE_TEST,
+ .height = -1,
+ .width = -1,
+ .pixclock = 20000,
+ .left_margin = 64,
+ .right_margin = 64,
+ .upper_margin = 32,
+ .lower_margin = 32,
+ .hsync_len = 64,
+ .vsync_len = 2,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
-#define CYBER16_WIDTH 800
-#define CYBER16_HEIGHT 600
-#define CYBER16_PIXCLOCK 25000 /* ++Geert: Just a guess */
+static struct fb_fix_screeninfo mc68x328fb_fix __initdata = {
+ .id = "68328fb",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .xpanstep = 1,
+ .ypanstep = 1,
+ .ywrapstep = 1,
+ .accel = FB_ACCEL_NONE,
+};
-#define PALM_WIDTH 160
-#define PALM_HEIGHT 160
+ /*
+ * Interface used by the world
+ */
+int mc68x328fb_init(void);
+int mc68x328fb_setup(char *);
+
+static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info);
+static int mc68x328fb_set_par(struct fb_info *info);
+static int mc68x328fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info);
+static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info);
+static int mc68x328fb_mmap(struct fb_info *info, struct file *file,
+ struct vm_area_struct *vma);
+
+static struct fb_ops mc68x328fb_ops = {
+ .fb_check_var = mc68x328fb_check_var,
+ .fb_set_par = mc68x328fb_set_par,
+ .fb_setcolreg = mc68x328fb_setcolreg,
+ .fb_pan_display = mc68x328fb_pan_display,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = soft_cursor,
+ .fb_mmap = mc68x328fb_mmap,
+};
-/*static int mc68328Key = 0;
-static u_char mc68328_colour_table [256][4];*/
+ /*
+ * Internal routines
+ */
- /*
- * Predefined Video Mode Names
- */
+static u_long get_line_length(int xres_virtual, int bpp)
+{
+ u_long length;
-static char *mc68328_fb_modenames[] = {
+ length = xres_virtual * bpp;
+ length = (length + 31) & ~31;
+ length >>= 3;
+ return (length);
+}
- /*
- * Autodetect (Default) Video Mode
- */
+ /*
+ * Setting the video mode has been split into two parts.
+ * First part, xxxfb_check_var, must not write anything
+ * to hardware, it should only verify and adjust var.
+ * This means it doesn't alter par but it does use hardware
+ * data from it to check this var.
+ */
- "default",
+static int mc68x328fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ u_long line_length;
/*
- * Predefined Video Modes
+ * FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
+ * as FB_VMODE_SMOOTH_XPAN is only used internally
*/
- "Palm", /* Palm Pilot devices, 1.0 and higher */
- "Palm Grey", /* Palm Pilot devices, 1.0 and higher */
+ if (var->vmode & FB_VMODE_CONUPDATE) {
+ var->vmode |= FB_VMODE_YWRAP;
+ var->xoffset = info->var.xoffset;
+ var->yoffset = info->var.yoffset;
+ }
/*
- * Dummy Video Modes
+ * Some very basic checks
*/
+ if (!var->xres)
+ var->xres = 1;
+ if (!var->yres)
+ var->yres = 1;
+ if (var->xres > var->xres_virtual)
+ var->xres_virtual = var->xres;
+ if (var->yres > var->yres_virtual)
+ var->yres_virtual = var->yres;
+ if (var->bits_per_pixel <= 1)
+ var->bits_per_pixel = 1;
+ else if (var->bits_per_pixel <= 8)
+ var->bits_per_pixel = 8;
+ else if (var->bits_per_pixel <= 16)
+ var->bits_per_pixel = 16;
+ else if (var->bits_per_pixel <= 24)
+ var->bits_per_pixel = 24;
+ else if (var->bits_per_pixel <= 32)
+ var->bits_per_pixel = 32;
+ else
+ return -EINVAL;
- "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
- "dummy",
- "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
- "dummy",
- "dummy", "dummy", "dummy", "dummy",
+ if (var->xres_virtual < var->xoffset + var->xres)
+ var->xres_virtual = var->xoffset + var->xres;
+ if (var->yres_virtual < var->yoffset + var->yres)
+ var->yres_virtual = var->yoffset + var->yres;
/*
- * User Defined Video Modes
- *
- * This doesn't work yet!!
+ * Memory limit
*/
-
- "user0", "user1", "user2", "user3", "user4", "user5", "user6",
- "user7"
-};
-
-
- /*
- * Predefined Video Mode Definitions
- */
-
-static struct fb_var_screeninfo mc68328_fb_predefined[] = {
+ line_length =
+ get_line_length(var->xres_virtual, var->bits_per_pixel);
+ if (line_length * var->yres_virtual > videomemorysize)
+ return -ENOMEM;
/*
- * Autodetect (Default) Video Mode
+ * Now that we checked it we alter var. The reason being is that the video
+ * mode passed in might not work but slight changes to it might make it
+ * work. This way we let the user know what is acceptable.
*/
+ switch (var->bits_per_pixel) {
+ case 1:
+ case 8:
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->green.offset = 0;
+ var->green.length = 8;
+ var->blue.offset = 0;
+ var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ break;
+ case 16: /* RGBA 5551 */
+ if (var->transp.length) {
+ var->red.offset = 0;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 5;
+ var->blue.offset = 10;
+ var->blue.length = 5;
+ var->transp.offset = 15;
+ var->transp.length = 1;
+ } else { /* RGB 565 */
+ var->red.offset = 0;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 6;
+ var->blue.offset = 11;
+ var->blue.length = 5;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ }
+ break;
+ case 24: /* RGB 888 */
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->green.offset = 8;
+ var->green.length = 8;
+ var->blue.offset = 16;
+ var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ break;
+ case 32: /* RGBA 8888 */
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->green.offset = 8;
+ var->green.length = 8;
+ var->blue.offset = 16;
+ var->blue.length = 8;
+ var->transp.offset = 24;
+ var->transp.length = 8;
+ break;
+ }
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ var->transp.msb_right = 0;
- {0,},
+ return 0;
+}
- /*
- * Predefined Video Modes
- */
+/* This routine actually sets the video mode. It's in here where we
+ * the hardware state info->par and fix which can be affected by the
+ * change in par. For this driver it doesn't do much.
+ */
+static int mc68x328fb_set_par(struct fb_info *info)
+{
+ info->fix.line_length = get_line_length(info->var.xres_virtual,
+ info->var.bits_per_pixel);
+ return 0;
+}
- {
- /* Palm */
- PALM_WIDTH, PALM_HEIGHT, PALM_WIDTH, PALM_HEIGHT,
- 0, 0,
- 1, -1,
- {0, 1, 0}, {0, 1, 0}, {0, 1, 0}, {0, 0, 0},
- 0, 0,
- -1, -1, /* phys height, width */
- FB_ACCEL_NONE,
- 0, 0, 0, 0, 0, 0, 0, /* timing */
- 0, /* sync */
- FB_VMODE_NONINTERLACED},
- {
- /* Palm Grey */
- PALM_WIDTH, PALM_HEIGHT, PALM_WIDTH, PALM_HEIGHT,
- 0, 0,
- 2, -1,
- {0, 2, 0}, {0, 2, 0}, {0, 2, 0}, {0, 0, 0},
- 0, 0,
- -1, -1, /* phys height, width */
- FB_ACCEL_NONE,
- 0, 0, 0, 0, 0, 0, 0, /* timing */
- 0, /* sync */
- FB_VMODE_NONINTERLACED},
+ /*
+ * 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 mc68x328fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ if (regno >= 256) /* no. of hw registers */
+ return 1;
/*
- * Dummy Video Modes
+ * Program hardware... do anything you want with transp
*/
- {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,},
- {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,},
- {0,}, {0,},
+ /* grayscale works only partially under directcolor */
+ if (info->var.grayscale) {
+ /* grayscale = 0.30*R + 0.59*G + 0.11*B */
+ red = green = blue =
+ (red * 77 + green * 151 + blue * 28) >> 8;
+ }
- /*
- * User Defined Video Modes
+ /* Directcolor:
+ * var->{color}.offset contains start of bitfield
+ * var->{color}.length contains length of bitfield
+ * {hardwarespecific} contains width of RAMDAC
+ * cmap[X] is programmed to (X << red.offset) | (X << green.offset) | (X << blue.offset)
+ * RAMDAC[X] is programmed to (red, green, blue)
+ *
+ * Pseudocolor:
+ * uses offset = 0 && length = RAMDAC register width.
+ * var->{color}.offset is 0
+ * var->{color}.length contains widht of DAC
+ * cmap is not used
+ * RAMDAC[X] is programmed to (red, green, blue)
+ * Truecolor:
+ * does not use DAC. Usually 3 are present.
+ * var->{color}.offset contains start of bitfield
+ * var->{color}.length contains length of bitfield
+ * cmap is programmed to (red << red.offset) | (green << green.offset) |
+ * (blue << blue.offset) | (transp << transp.offset)
+ * RAMDAC does not exist
*/
-
- {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}, {0,}
-};
-
-static struct fb_fix_screeninfo mc68328_fix __initdata = {
- .id = "mc68328";
- .smem_len = 160 * 160 /8;
- .type = FB_TYPE_PACKED_PIXELS;
- .accel = FB_ACCEL_NONE;
-};
-
-#define NUM_TOTAL_MODES arraysize(mc68328_fb_predefined)
-#define NUM_PREDEF_MODES (3)
-
-static int mc68328fb_inverse = 0;
-static int mc68328fb_mode = 0;
-static int mc68328fbCursorMode = 0;
-
- /*
- * Some default modes
- */
-
-#define PALM_DEFMODE (1)
-#define CYBER16_DEFMODE (2)
-
- /*
- * Interface used by the world
- */
-int mc68328_fb_init(void);
-
-static int mc68328fb_setcolreg(u_int regno, u_int red, u_int green,
- u_int blue, u_int transp);
-static void mc68328fb_blank(int blank, struct fb_info *info);
-
- /*
- * Accelerated Functions used by the low level console driver
- */
-
-void mc68328_WaitQueue(u_short fifo);
-void mc68328_WaitBlit(void);
-void mc68328_BitBLT(u_short curx, u_short cury, u_short destx,
- u_short desty, u_short width, u_short height,
- u_short mode);
-void mc68328_RectFill(u_short x, u_short y, u_short width, u_short height,
- u_short mode, u_short color);
-void mc68328_MoveCursor(u_short x, u_short y);
-
- /*
- * Internal routines
- */
-static int get_video_mode(const char *name);
-
- /*
- * 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 mc68328fb_setcolreg(u_int regno, u_int red, u_int green,
- u_int blue, u_int transp)
-{
- return 1;
-#if 0
- if (regno > 255)
- return (1);
-
- *(mc68328Regs + 0x3c8) = (char) regno;
- mc68328_colour_table[regno][0] = red & 0xff;
- mc68328_colour_table[regno][1] = green & 0xff;
- mc68328_colour_table[regno][2] = blue & 0xff;
- mc68328_colour_table[regno][3] = transp;
-
- *(mc68328Regs + 0x3c9) = (red & 0xff) >> 2;
- *(mc68328Regs + 0x3c9) = (green & 0xff) >> 2;
- *(mc68328Regs + 0x3c9) = (blue & 0xff) >> 2;
-
- return (0);
-#endif
+#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
+ switch (info->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ red = CNVT_TOHW(red, info->var.red.length);
+ green = CNVT_TOHW(green, info->var.green.length);
+ blue = CNVT_TOHW(blue, info->var.blue.length);
+ transp = CNVT_TOHW(transp, info->var.transp.length);
+ break;
+ case FB_VISUAL_DIRECTCOLOR:
+ red = CNVT_TOHW(red, 8); /* expect 8 bit DAC */
+ green = CNVT_TOHW(green, 8);
+ blue = CNVT_TOHW(blue, 8);
+ /* hey, there is bug in transp handling... */
+ transp = CNVT_TOHW(transp, 8);
+ break;
+ }
+#undef CNVT_TOHW
+ /* Truecolor has hardware independent palette */
+ if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
+ u32 v;
+
+ if (regno >= 16)
+ return 1;
+
+ v = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset) |
+ (transp << info->var.transp.offset);
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ break;
+ case 16:
+ ((u32 *) (info->pseudo_palette))[regno] = v;
+ break;
+ case 24:
+ case 32:
+ ((u32 *) (info->pseudo_palette))[regno] = v;
+ break;
+ }
+ return 0;
+ }
+ return 0;
}
- /*
- * (Un)Blank the screen
- */
+ /*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ */
-static void mc68328fb_blank(int blank, struct fb_info *info)
+static int mc68x328fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
{
-#if 0
- if (blank)
- (*(volatile unsigned char *) 0xFFFFFA27) &= ~128;
+ if (var->vmode & FB_VMODE_YWRAP) {
+ if (var->yoffset < 0
+ || var->yoffset >= info->var.yres_virtual
+ || var->xoffset)
+ return -EINVAL;
+ } else {
+ if (var->xoffset + var->xres > info->var.xres_virtual ||
+ var->yoffset + var->yres > info->var.yres_virtual)
+ return -EINVAL;
+ }
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
else
- (*(volatile unsigned char *) 0xFFFFFA27) |= 128;
-#endif
-}
-
-
-/**************************************************************
- * We are waiting for "fifo" FIFO-slots empty
- */
-void mc68328_WaitQueue(u_short fifo)
-{
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+ return 0;
}
-/**************************************************************
- * We are waiting for Hardware (Graphics Engine) not busy
- */
-void mc68328_WaitBlit(void)
-{
-}
+ /*
+ * Most drivers don't need their own mmap function
+ */
-/**************************************************************
- * BitBLT - Through the Plane
- */
-void mc68328_BitBLT(u_short curx, u_short cury, u_short destx,
- u_short desty, u_short width, u_short height,
- u_short mode)
+static int mc68x328fb_mmap(struct fb_info *info, struct file *file,
+ struct vm_area_struct *vma)
{
-#if 0
- u_short blitcmd = S3_BITBLT;
-
-/* Set drawing direction */
-/* -Y, X maj, -X (default) */
- if (curx > destx)
- blitcmd |= 0x0020; /* Drawing direction +X */
- else {
- curx += (width - 1);
- destx += (width - 1);
- }
-
- if (cury > desty)
- blitcmd |= 0x0080; /* Drawing direction +Y */
- else {
- cury += (height - 1);
- desty += (height - 1);
- }
-
- mc68328_WaitQueue(0x8000);
-
- *((u_short volatile *) (mc68328Regs + S3_PIXEL_CNTL)) = 0xa000;
- *((u_short volatile *) (mc68328Regs + S3_FRGD_MIX)) =
- (0x0060 | mode);
-
- *((u_short volatile *) (mc68328Regs + S3_CUR_X)) = curx;
- *((u_short volatile *) (mc68328Regs + S3_CUR_Y)) = cury;
+#ifndef MMU
+ /* this is uClinux (no MMU) specific code */
- *((u_short volatile *) (mc68328Regs + S3_DESTX_DIASTP)) = destx;
- *((u_short volatile *) (mc68328Regs + S3_DESTY_AXSTP)) = desty;
+ vma->vm_flags |= VM_RESERVED;
+ vma->vm_start = videomemory;
- *((u_short volatile *) (mc68328Regs + S3_MIN_AXIS_PCNT)) =
- height - 1;
- *((u_short volatile *) (mc68328Regs + S3_MAJ_AXIS_PCNT)) =
- width - 1;
-
- *((u_short volatile *) (mc68328Regs + S3_CMD)) = blitcmd;
+ return 0;
+#else
+ return -EINVAL;
#endif
}
-/**************************************************************
- * Rectangle Fill Solid
- */
-void mc68328_RectFill(u_short x, u_short y, u_short width, u_short height,
- u_short mode, u_short color)
+int __init mc68x328fb_setup(char *options)
{
#if 0
- u_short blitcmd = S3_FILLEDRECT;
-
- mc68328_WaitQueue(0x8000);
-
- *((u_short volatile *) (mc68328Regs + S3_PIXEL_CNTL)) = 0xa000;
- *((u_short volatile *) (mc68328Regs + S3_FRGD_MIX)) =
- (0x0020 | mode);
-
- *((u_short volatile *) (mc68328Regs + S3_MULT_MISC)) = 0xe000;
- *((u_short volatile *) (mc68328Regs + S3_FRGD_COLOR)) = color;
-
- *((u_short volatile *) (mc68328Regs + S3_CUR_X)) = x;
- *((u_short volatile *) (mc68328Regs + S3_CUR_Y)) = y;
-
- *((u_short volatile *) (mc68328Regs + S3_MIN_AXIS_PCNT)) =
- height - 1;
- *((u_short volatile *) (mc68328Regs + S3_MAJ_AXIS_PCNT)) =
- width - 1;
-
- *((u_short volatile *) (mc68328Regs + S3_CMD)) = blitcmd;
+ char *this_opt;
#endif
-}
-
-/**************************************************************
- * Move cursor to x, y
- */
-void mc68328_MoveCursor(u_short x, u_short y)
-{
- (*(volatile unsigned short *) 0xFFFFFA18) =
- (mc68328fbCursorMode << 14) | x;
- (*(volatile unsigned short *) 0xFFFFFA1A) = y;
+ if (!options || !*options)
+ return 1;
#if 0
- *(mc68328Regs + S3_CRTC_ADR) = 0x39;
- *(mc68328Regs + S3_CRTC_DATA) = 0xa0;
-
- *(mc68328Regs + S3_CRTC_ADR) = S3_HWGC_ORGX_H;
- *(mc68328Regs + S3_CRTC_DATA) = (char) ((x & 0x0700) >> 8);
- *(mc68328Regs + S3_CRTC_ADR) = S3_HWGC_ORGX_L;
- *(mc68328Regs + S3_CRTC_DATA) = (char) (x & 0x00ff);
-
- *(mc68328Regs + S3_CRTC_ADR) = S3_HWGC_ORGY_H;
- *(mc68328Regs + S3_CRTC_DATA) = (char) ((y & 0x0700) >> 8);
- *(mc68328Regs + S3_CRTC_ADR) = S3_HWGC_ORGY_L;
- *(mc68328Regs + S3_CRTC_DATA) = (char) (y & 0x00ff);
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!*this_opt)
+ continue;
+ if (!strncmp(this_opt, "disable", 7))
+ mc68x328fb_enable = 0;
+ }
#endif
+ return 1;
}
-/* -------------------- Generic routines ------------------------------------ */
-
- /*
- * Default Colormaps
- */
-
-static u_short red16[] =
- { 0xc000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0x0000,
- 0x8000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff
-};
-static u_short green16[] =
- { 0xc000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0x0000,
- 0x8000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff
-};
-static u_short blue16[] =
- { 0xc000, 0x0000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0x0000,
- 0x8000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff
-};
-
+ /*
+ * Initialisation
+ */
-static struct fb_cmap default_16_colors =
- { 0, 16, red16, green16, blue16, NULL };
-
-
-static struct fb_cmap *get_default_colormap(int bpp)
+int __init mc68x328fb_init(void)
{
- return (&default_16_colors);
-}
-
-
-#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7fff-(val))>>16)
-#define CNVT_FROMHW(val,width) (((width) ? ((((val)<<16)-(val)) / \
- ((1<<(width))-1)) : 0))
-
-static struct fb_ops mc68328_fb_ops = {
- .owner = THIS_MODULE,
- .fb_setcolreg = mc68328fb_setcolreg,
- .fb_fillrect = cfbfillrect,
- .fb_copyarea = cfbcopyarea,
- .fb_imageblit = cfbimgblt,
- .fb_cursor = softcursor,
-};
-
+ /*
+ * initialize the default mode from the LCD controller registers
+ */
+ mc68x328fb_default.xres = LXMAX;
+ mc68x328fb_default.yres = LYMAX+1;
+ mc68x328fb_default.xres_virtual = mc68x328fb_default.xres;
+ mc68x328fb_default.yres_virtual = mc68x328fb_default.yres;
+ mc68x328fb_default.bits_per_pixel = 1 + (LPICF & 0x01);
+ videomemory = LSSA;
+ videomemorysize = (mc68x328fb_default.xres_virtual+7) / 8 *
+ mc68x328fb_default.yres_virtual * mc68x328fb_default.bits_per_pixel;
+
+ fb_info.screen_base = (void *)videomemory;
+ fb_info.fbops = &mc68x328fb_ops;
+ fb_info.var = mc68x328fb_default;
+ fb_info.fix = mc68x328fb_fix;
+ fb_info.fix.smem_start = videomemory;
+ fb_info.fix.smem_len = videomemorysize;
+ fb_info.fix.line_length =
+ get_line_length(mc68x328fb_default.xres_virtual, mc68x328fb_default.bits_per_pixel);
+ fb_info.fix.visual = (mc68x328fb_default.bits_per_pixel) == 1 ?
+ MC68X328FB_MONO_VISUAL : FB_VISUAL_PSEUDOCOLOR;
+ fb_info.pseudo_palette = &mc68x328fb_pseudo_palette;
+ fb_info.flags = FBINFO_FLAG_DEFAULT;
+
+ fb_alloc_cmap(&fb_info.cmap, 256, 0);
+
+ if (register_framebuffer(&fb_info) < 0) {
+ return -EINVAL;
+ }
- /*
- * Initialization
- */
+ printk(KERN_INFO
+ "fb%d: %s frame buffer device\n", fb_info.node, fb_info.fix.id);
+ printk(KERN_INFO
+ "fb%d: %dx%dx%d at 0x%08lx\n", fb_info.node,
+ mc68x328fb_default.xres_virtual, mc68x328fb_default.yres_virtual,
+ 1 << mc68x328fb_default.bits_per_pixel, videomemory);
-int __init mc68328_fb_init(void)
-{
- if (mc68328fb_mode == -1)
- mc68328fb_mode = PALM_DEFMODE;
- mc68328_fix.smem_start = (*(volatile unsigned long *) 0xFFFFFA00);
- /*kernel_map (board_addr + 0x01400000, 0x00400000, */
-
- info->var = mc68328_fb_predefined[mc68328fb_mode];
-
- if (info->var.bits_per_pixel == 1)
- fix->visual = FB_VISUAL_MONO01;
- else
- fix->visual = FB_VISUAL_DIRECTCOLOR;
- info->screen_base = (u_char *) mc68328_fix.smem_start;
-
- if (register_framebuffer(&fb_info) < 0)
- panic("Cannot register frame buffer\n");
return 0;
}
- /*
- * Get a Video Mode
- */
+#ifdef MODULE
-static int get_video_mode(const char *name)
+static void __exit mc68x328fb_cleanup(void)
{
- int i;
-
- for (i = 1; i < NUM_PREDEF_MODES; i++)
- if (!strcmp(name, mc68328_fb_modenames[i]))
- return (i);
- return (0);
+ unregister_framebuffer(&fb_info);
}
+
+module_init(mc68x328fb_init);
+module_exit(mc68x328fb_cleanup);
+
+MODULE_LICENSE("GPL");
+#endif /* MODULE */
git://git.onelab.eu / linux-2.6.git / blobdiff