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Subject[PATCH] fm2fb ported to new fbdev api.

Please test this driver so I could included into the dj tree. It is
against 2.5.5-dj1.

. ---
|o_o |
|:_/ | Give Micro$oft the Bird!!!!
// \ \ Use Linux!!!!
(| | )
/'_ _/`\
___)=(___/
--- linux-2.5.5-dj2/drivers/video/fm2fb.c Tue Feb 26 16:04:26 2002
+++ linux/drivers/video/fm2fb.c Thu Feb 28 11:23:44 2002
@@ -4,9 +4,11 @@
*
* Copyright (C) 1998 Steffen A. Mork (mork@ls7.cs.uni-dortmund.de)
* Copyright (C) 1999 Geert Uytterhoeven
+ * Copyright (C) 2001 James Simmons
*
* 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
@@ -18,12 +20,9 @@
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/zorro.h>
-
#include <asm/io.h>

#include <video/fbcon.h>
-#include <video/fbcon-cfb32.h>
-

/*
* Some technical notes:
@@ -117,7 +116,6 @@
*
*/

-
/*
* definitions
*/
@@ -130,29 +128,18 @@
#define FRAMEMASTER_COMPL 4
#define FRAMEMASTER_ROM 8

-
-struct FrameMaster_fb_par
-{
- int xres;
- int yres;
- int bpp;
- int pixclock;
-};
-
-static unsigned long fm2fb_mem_phys;
-static void *fm2fb_mem;
-static unsigned long fm2fb_reg_phys;
static volatile unsigned char *fm2fb_reg;

-static struct display disp;
+#define arraysize(x) (sizeof(x)/sizeof(*(x)))
+
static struct fb_info fb_info;
-static struct { u_char red, green, blue, pad; } palette[16];
-#ifdef FBCON_HAS_CFB32
-static u32 fbcon_cfb32_cmap[16];
-#endif
+static u32 pseudo_palette[17];
+static struct display display;

-static struct fb_fix_screeninfo fb_fix;
-static struct fb_var_screeninfo fb_var;
+static struct fb_fix_screeninfo fb_fix __initdata = {
+ NULL, (unsigned long) NULL, FRAMEMASTER_REG, FB_TYPE_PACKED_PIXELS, 0,
+ FB_VISUAL_TRUECOLOR, 0, 0, 0, 768<<2, (unsigned long)NULL, 8, FB_ACCEL_NONE
+};

static int fm2fb_mode __initdata = -1;

@@ -174,125 +161,55 @@
33333, 10, 102, 10, 5, 80, 34, FB_SYNC_COMP_HIGH_ACT, 0
}
};
-
-
+
/*
* Interface used by the world
*/
+int fm2fb_init(void);

-static int fm2fb_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info);
-static int fm2fb_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info);
-static int fm2fb_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info);
-static int fm2fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info);
static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info);
+ u_int transp, struct fb_info *info);
static int fm2fb_blank(int blank, struct fb_info *info);

- /*
- * Interface to the low level console driver
- */
-
-int fm2fb_init(void);
-static int fm2fbcon_switch(int con, struct fb_info *info);
-static int fm2fbcon_updatevar(int con, struct fb_info *info);
-
- /*
- * Internal routines
- */
-
-static int fm2fb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp, struct fb_info *info);
-
static struct fb_ops fm2fb_ops = {
owner: THIS_MODULE,
- fb_get_fix: fm2fb_get_fix,
- fb_get_var: fm2fb_get_var,
- fb_set_var: fm2fb_set_var,
- fb_get_cmap: fm2fb_get_cmap,
- fb_set_cmap: fbgen_set_cmap,
+ fb_get_fix: gen_get_fix,
+ fb_get_var: gen_get_var,
+ fb_set_var: gen_set_var,
+ fb_get_cmap: gen_get_cmap,
+ fb_set_cmap: gen_set_cmap,
fb_setcolreg: fm2fb_setcolreg,
- fb_blank: fm2fb_blank,
+ fb_blank: fm2fb_blank,
};

/*
- * Get the Fixed Part of the Display
+ * Blank the display.
*/
-
-static int fm2fb_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info)
+static int fm2fb_blank(int blank, struct fb_info *info)
{
- memcpy(fix, &fb_fix, sizeof(fb_fix));
- return 0;
-}
+ unsigned char t = FRAMEMASTER_ROM;

-
- /*
- * Get the User Defined Part of the Display
- */
-
-static int fm2fb_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
-{
- memcpy(var, &fb_var, sizeof(fb_var));
- return 0;
+ if (!blank)
+ t |= FRAMEMASTER_ENABLE | FRAMEMASTER_NOLACE;
+ fm2fb_reg[0] = t;
}
-
-
+
/*
- * Set the User Defined Part of the Display
+ * 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_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
+static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
{
- struct display *display;
- int oldbpp = -1, err;
-
- if (con >= 0)
- display = &fb_display[con];
- else
- display = &disp; /* used during initialization */
-
- if (var->xres > fb_var.xres || var->yres > fb_var.yres ||
- var->xres_virtual > fb_var.xres_virtual ||
- var->yres_virtual > fb_var.yres_virtual ||
- var->bits_per_pixel > fb_var.bits_per_pixel ||
- var->nonstd ||
- (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
- return -EINVAL;
- memcpy(var, &fb_var, sizeof(fb_var));
-
- if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
- oldbpp = display->var.bits_per_pixel;
- display->var = *var;
- }
- if (oldbpp != var->bits_per_pixel) {
- if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
- return err;
- do_install_cmap(con, info);
- }
- return 0;
-}
-
+ if (regno > 15)
+ return 1;
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;

- /*
- * Get the Colormap
- */
-
-static int fm2fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
-{
- if (con == info->currcon) /* current console? */
- return fb_get_cmap(cmap, kspc, fm2fb_getcolreg, info);
- else if (fb_display[con].cmap.len) /* non default colormap? */
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- else
- fb_copy_cmap(fb_default_cmap(256), cmap, kspc ? 0 : 2);
- return 0;
+ ((u32*)(info->pseudo_palette))[regno] = (red << 16) | (green << 8) | blue;
+ return 0;
}

/*
@@ -301,193 +218,87 @@

int __init fm2fb_init(void)
{
- int is_fm;
- struct zorro_dev *z = NULL;
- unsigned long *ptr;
- int x, y;
-
- while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
- if (z->id == ZORRO_PROD_BSC_FRAMEMASTER_II)
- is_fm = 1;
- else if (z->id == ZORRO_PROD_HELFRICH_RAINBOW_II)
- is_fm = 0;
- else
- continue;
- if (!request_mem_region(z->resource.start, FRAMEMASTER_SIZE, "fm2fb"))
- continue;
-
- /* assigning memory to kernel space */
- fm2fb_mem_phys = z->resource.start;
- fm2fb_mem = ioremap(fm2fb_mem_phys, FRAMEMASTER_SIZE);
- fm2fb_reg_phys = fm2fb_mem_phys+FRAMEMASTER_REG;
- fm2fb_reg = (unsigned char *)(fm2fb_mem+FRAMEMASTER_REG);
-
- /* make EBU color bars on display */
- ptr = (unsigned long *)fm2fb_mem;
- 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, NULL);
+ struct zorro_dev *z = NULL;
+ unsigned long *ptr;
+ int is_fm;
+ int x, y;
+
+ while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
+ if (z->id == ZORRO_PROD_BSC_FRAMEMASTER_II)
+ is_fm = 1;
+ else if (z->id == ZORRO_PROD_HELFRICH_RAINBOW_II)
+ is_fm = 0;
+ else
+ continue;
+
+ if (!request_mem_region(z->resource.start, FRAMEMASTER_SIZE, "fm2fb"))
+ continue;
+
+ /* assigning memory to kernel space */
+ fb_fix.smem_start = z->resource.start;
+ fb_info.screen_base = ioremap(fb_fix.smem_start, FRAMEMASTER_SIZE);
+ fb_fix.mmio_start = fb_fix.smem_start + FRAMEMASTER_REG;
+ fm2fb_reg = (unsigned char *)(fb_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, NULL);
+
+ if (fm2fb_mode == -1)
+ fm2fb_mode = FM2FB_MODE_PAL;
+
+ strcpy(fb_info.modename, fb_fix.id);
+ fb_info.node = NODEV;
+ fb_info.fbops = &fm2fb_ops;
+ fb_info.var = fb_var_modes[fm2fb_mode];
+ fb_info.screen_base = (char *)fb_fix.smem_start;
+ fb_info.pseudo_palette = pseudo_palette;
+ fb_info.fix = fb_fix;
+ fb_info.flags = FBINFO_FLAG_DEFAULT;
+
+ /* The below feilds will go away !!!! */
+ fb_info.currcon = -1;
+ strcpy(fb_info.modename, fb_info.fix.id);
+ fb_info.disp = &display;
+ fb_info.switch_con = gen_switch;
+ fb_info.updatevar = gen_update_var;
+ fb_alloc_cmap(&fb_info.cmap, 16, 0);

- if (fm2fb_mode == -1)
- fm2fb_mode = FM2FB_MODE_PAL;
+ gen_set_var(&fb_info.var, -1, &fb_info);

- fb_var = fb_var_modes[fm2fb_mode];
+ if (register_framebuffer(&fb_info) < 0)
+ return -EINVAL;

- strcpy(fb_fix.id, is_fm ? "FrameMaster II" : "Rainbow II");
- fb_fix.smem_start = fm2fb_mem_phys;
- fb_fix.smem_len = FRAMEMASTER_REG;
- fb_fix.type = FB_TYPE_PACKED_PIXELS;
- fb_fix.type_aux = 0;
- fb_fix.visual = FB_VISUAL_TRUECOLOR;
- fb_fix.line_length = 768<<2;
- fb_fix.mmio_start = fm2fb_reg_phys;
- fb_fix.mmio_len = 8;
- fb_fix.accel = FB_ACCEL_NONE;
-
- disp.var = fb_var;
- disp.cmap.start = 0;
- disp.cmap.len = 0;
- disp.cmap.red = disp.cmap.green = disp.cmap.blue = disp.cmap.transp = NULL;
- disp.screen_base = (char *)fm2fb_mem;
- disp.visual = fb_fix.visual;
- disp.type = fb_fix.type;
- disp.type_aux = fb_fix.type_aux;
- disp.ypanstep = 0;
- disp.ywrapstep = 0;
- disp.line_length = fb_fix.line_length;
- disp.can_soft_blank = 1;
- disp.inverse = 0;
- #ifdef FBCON_HAS_CFB32
- disp.dispsw = &fbcon_cfb32;
- disp.dispsw_data = &fbcon_cfb32_cmap;
- #else
- disp.dispsw = &fbcon_dummy;
- #endif
- disp.scrollmode = SCROLL_YREDRAW;
-
- strcpy(fb_info.modename, fb_fix.id);
- fb_info.node = NODEV;
- fb_info.fbops = &fm2fb_ops;
- fb_info.disp = &disp;
- fb_info.fontname[0] = '\0';
- fb_info.changevar = NULL;
- fb_info.switch_con = &fm2fbcon_switch;
- fb_info.updatevar = &fm2fbcon_updatevar;
- fb_info.flags = FBINFO_FLAG_DEFAULT;
-
- fm2fb_set_var(&fb_var, -1, &fb_info);
-
- if (register_framebuffer(&fb_info) < 0)
- return -EINVAL;
-
- printk("fb%d: %s frame buffer device\n", GET_FB_IDX(fb_info.node),
- fb_fix.id);
- return 0;
- }
- return -ENXIO;
+ printk("fb%d: %s frame buffer device\n", GET_FB_IDX(fb_info.node), fb_fix.id);
+ return 0;
+ }
+ return -ENXIO;
}

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;
-}
-
-
-static int fm2fbcon_switch(int con, struct fb_info *info)
-{
- /* Do we have to save the colormap? */
- if (fb_display[info->currcon].cmap.len)
- fb_get_cmap(&fb_display[info->currcon].cmap, 1, fm2fb_getcolreg, info);
-
- info->currcon = con;
- /* Install new colormap */
- do_install_cmap(con, info);
- return 0;
-}
-
- /*
- * Update the `var' structure (called by fbcon.c)
- */
-
-static int fm2fbcon_updatevar(int con, struct fb_info *info)
-{
- /* Nothing */
- return 0;
-}
-
- /*
- * 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;
-}
-
- /*
- * Read a single color register and split it into
- * colors/transparent. Return != 0 for invalid regno.
- */
-
-static int fm2fb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp, struct fb_info *info)
-{
- if (regno > 15)
- return 1;
- *red = (palette[regno].red<<8) | palette[regno].red;
- *green = (palette[regno].green<<8) | palette[regno].green;
- *blue = (palette[regno].blue<<8) | palette[regno].blue;
- *transp = 0;
- return 0;
-}
+ char *this_opt;

+ if (!options || !*options)
+ 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 > 15)
- return 1;
- red >>= 8;
- green >>= 8;
- blue >>= 8;
- palette[regno].red = red;
- palette[regno].green = green;
- palette[regno].blue = blue;
-
-#ifdef FBCON_HAS_CFB32
- fbcon_cfb32_cmap[regno] = (red << 16) | (green << 8) | blue;
-#endif
- 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;
}

MODULE_LICENSE("GPL");

-
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