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Subject[PATCH] hpfb.c ported to fbdev api

Hi!

Since I don't have this hardware could someone test this driver. It is
against 2.5.5-dj2

. ---
|o_o |
|:_/ | Give Micro$oft the Bird!!!!
// \ \ Use Linux!!!!
(| | )
/'_ _/`\
___)=(___/

--- linux-2.5.5-dj2/drivers/video/hpfb.c Tue Feb 26 16:04:26 2002
+++ linux/drivers/video/hpfb.c Thu Feb 28 10:55:18 2002
@@ -1,9 +1,6 @@
/*
* HP300 Topcat framebuffer support (derived from macfb of all things)
* Phil Blundell <philb@gnu.org> 1998
- *
- * Should this be moved to drivers/dio/video/ ? -- Peter Maydell
- * No! -- Jes
*/

#include <linux/module.h>
@@ -22,16 +19,8 @@
#include <asm/blinken.h>
#include <asm/hwtest.h>

-#include <video/fbcon.h>
-#include <video/fbcon-mfb.h>
-#include <video/fbcon-cfb2.h>
-#include <video/fbcon-cfb4.h>
-#include <video/fbcon-cfb8.h>
-
-static struct display disp;
static struct fb_info fb_info;

-unsigned long fb_start, fb_size = 1024*768, fb_line_length = 1024;
unsigned long fb_regs;
unsigned char fb_bitmask;

@@ -51,99 +40,41 @@
#define WWIDTH 0x4102
#define WMOVE 0x409c

+static struct fb_fix_screeninfo hpfb_fix __initdata = {
+ "HP300 Topcat", (unsigned long) NULL, 1024*768, FB_TYPE_PACKED_PIXELS, 0,
+ FB_VISUAL_PSEUDOCOLOR, 0, 0, 0, 1024, (unsigned long) NULL, 0, FB_ACCEL_NONE};
+
static struct fb_var_screeninfo hpfb_defined = {
- 0,0,0,0, /* W,H, W, H (virtual) load xres,xres_virtual*/
- 0,0, /* virtual -> visible no offset */
- 0, /* depth -> load bits_per_pixel */
- 0, /* greyscale ? */
- {0,2,0}, /* R */
- {0,2,0}, /* G */
- {0,2,0}, /* B */
- {0,0,0}, /* transparency */
- 0, /* standard pixel format */
+ 1024,768,1024,768, /* W,H, W, H (virtual) load xres,xres_virtual*/
+ 0,0, /* virtual -> visible no offset */
+ 1, /* depth -> load bits_per_pixel */
+ 0, /* greyscale ? */
+ {0,2,0}, /* R */
+ {0,2,0}, /* G */
+ {0,2,0}, /* B */
+ {0,0,0}, /* transparency */
+ 0, /* standard pixel format */
FB_ACTIVATE_NOW,
- 274,195, /* 14" monitor */
+ 274,195, /* 14" monitor */
FB_ACCEL_NONE,
0L,0L,0L,0L,0L,
- 0L,0L,0, /* No sync info */
+ 0L,0L,0, /* No sync info */
FB_VMODE_NONINTERLACED,
{0,0,0,0,0,0}
};

-struct hpfb_par
-{
-};
-
-struct hpfb_par current_par;
-
-static void hpfb_encode_var(struct fb_var_screeninfo *var,
- struct hpfb_par *par)
-{
- int i=0;
- var->xres=1024;
- var->yres=768;
- var->xres_virtual=1024;
- var->yres_virtual=768;
- var->xoffset=0;
- var->yoffset=0;
- var->bits_per_pixel = 1;
- var->grayscale=0;
- var->transp.offset=0;
- var->transp.length=0;
- var->transp.msb_right=0;
- var->nonstd=0;
- var->activate=0;
- var->height= -1;
- var->width= -1;
- var->vmode=FB_VMODE_NONINTERLACED;
- var->pixclock=0;
- var->sync=0;
- var->left_margin=0;
- var->right_margin=0;
- var->upper_margin=0;
- var->lower_margin=0;
- var->hsync_len=0;
- var->vsync_len=0;
- for(i=0;i<ARRAY_SIZE(var->reserved);i++)
- var->reserved[i]=0;
-}
-
-static void hpfb_get_par(struct hpfb_par *par)
-{
- *par=current_par;
-}
-
-static int fb_update_var(int con, struct fb_info *info)
-{
- return 0;
-}
-
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
-{
- struct hpfb_par par;
-
- hpfb_get_par(&par);
- hpfb_encode_var(var, &par);
- return 0;
-}
-
-static int hpfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
-{
- return 0;
-}
+static struct display display;

/*
- * Set a palette register. This may not work on all boards but only
- * experimentation will tell.
+ * Set the palette. This may not work on all boards but only experimentation
+ * will tell.
* XXX Doesn't work at all.
*/
-
-static int hpfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
+static int hpfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
{
while (readw(fb_regs + 0x6002) & 0x4) udelay(1);
-
writew(0, fb_regs + 0x60f0);
writew(regno, fb_regs + 0x60b8);
writew(red, fb_regs + 0x60b2);
@@ -155,111 +86,28 @@
return 0;
}

-static int hpfb_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
-{
- struct hpfb_par par;
- if(con==-1)
- {
- hpfb_get_par(&par);
- hpfb_encode_var(var, &par);
- }
- else
- *var=fb_display[con].var;
- return 0;
-}
-
-static int hpfb_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
-{
- int err;
-
- if ((err=do_fb_set_var(var, 1)))
- return err;
- return 0;
-}
-
-static void hpfb_encode_fix(struct fb_fix_screeninfo *fix,
- struct hpfb_par *par)
-{
- memset(fix, 0, sizeof(struct fb_fix_screeninfo));
- strcpy(fix->id, "HP300 Topcat");
-
- /*
- * X works, but screen wraps ...
- */
- fix->smem_start=fb_start;
- fix->smem_len=fb_size;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- fix->xpanstep=0;
- fix->ypanstep=0;
- fix->ywrapstep=0;
- fix->line_length=fb_line_length;
-}
-
-static int hpfb_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info)
-{
- struct hpfb_par par;
- hpfb_get_par(&par);
- hpfb_encode_fix(fix, &par);
- return 0;
-}
-
-static void topcat_blit(int x0, int y0, int x1, int y1, int w, int h)
+void hpfb_copyarea(struct fb_info *info, struct fb_copyarea *area)
{
while (readb(fb_regs + BUSY) & fb_bitmask);
writeb(0x3, fb_regs + WMRR);
- writew(x0, fb_regs + SOURCE_X);
- writew(y0, fb_regs + SOURCE_Y);
- writew(x1, fb_regs + DEST_X);
- writew(y1, fb_regs + DEST_Y);
- writew(h, fb_regs + WHEIGHT);
- writew(w, fb_regs + WWIDTH);
+ writew(area->sx, fb_regs + SOURCE_X);
+ writew(area->sy, fb_regs + SOURCE_Y);
+ writew(area->dx, fb_regs + DEST_X);
+ writew(area->dy, fb_regs + DEST_Y);
+ writew(area->height, fb_regs + WHEIGHT);
+ writew(area->width, fb_regs + WWIDTH);
writeb(fb_bitmask, fb_regs + WMOVE);
}

-static int hpfb_switch(int con, struct fb_info *info)
-{
- do_fb_set_var(&fb_display[con].var,1);
- info->currcon=con;
- return 0;
-}
-
-static void hpfb_set_disp(int con)
-{
- struct fb_fix_screeninfo fix;
- struct display *display;
-
- if (con >= 0)
- display = &fb_display[con];
- else
- display = &disp; /* used during initialization */
-
- hpfb_get_fix(&fix, con, 0);
-
- display->visual = fix.visual;
- display->type = fix.type;
- display->type_aux = fix.type_aux;
- display->ypanstep = fix.ypanstep;
- display->ywrapstep = fix.ywrapstep;
- display->line_length = fix.line_length;
- display->next_line = fix.line_length;
- display->can_soft_blank = 0;
- display->inverse = 0;
-
- display->dispsw = &fbcon_cfb8;
-}
-
static struct fb_ops hpfb_ops = {
owner: THIS_MODULE,
- fb_get_fix: hpfb_get_fix,
- fb_get_var: hpfb_get_var,
- fb_set_var: hpfb_set_var,
- fb_get_cmap: hpfb_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: hpfb_setcolreg,
+ fb_copyarea: hpfb_copyarea,
};

#define TOPCAT_FBOMSB 0x5d
@@ -272,7 +120,7 @@
fboff = (readb(base + TOPCAT_FBOMSB) << 8)
| readb(base + TOPCAT_FBOLSB);

- fb_start = 0xf0000000 | (readb(base + fboff) << 16);
+ hpfb_fix.smem_start = 0xf0000000 | (readb(base + fboff) << 16);
fb_regs = base;

#if 0
@@ -284,17 +132,6 @@
writeb(0, base+0x4516);
writeb(0x90, base+0x4206);
#endif
-
- /*
- * Fill in the available video resolution
- */
-
- hpfb_defined.xres = 1024;
- hpfb_defined.yres = 768;
- hpfb_defined.xres_virtual = 1024;
- hpfb_defined.yres_virtual = 768;
- hpfb_defined.bits_per_pixel = 8;
-
/*
* Give the hardware a bit of a prod and work out how many bits per
* pixel are supported.
@@ -302,8 +139,8 @@

writeb(0xff, base + TC_WEN);
writeb(0xff, base + TC_FBEN);
- writeb(0xff, fb_start);
- fb_bitmask = readb(fb_start);
+ writeb(0xff, hpfb_fix.smem_start);
+ fb_bitmask = readb(hpfb_fix.smem_start);

/*
* Enable reading/writing of all the planes.
@@ -316,23 +153,25 @@
/*
* Let there be consoles..
*/
- strcpy(fb_info.modename, "Topcat");
- fb_info.changevar = NULL;
- fb_info.node = NODEV;
+ fb_info.node = NODEV;
fb_info.fbops = &hpfb_ops;
- fb_info.screen_base = fb_start;
- fb_info.disp = &disp;
- fb_info.switch_con = &hpfb_switch;
- fb_info.updatevar = &fb_update_var;
fb_info.flags = FBINFO_FLAG_DEFAULT;
- do_fb_set_var(&hpfb_defined, 1);
+ fb_info.var = hpfb_defined;
+ fb_info.fix = hpfb_fix;
+ fb_info.screen_base = hpfb_fix.smem_start;
+
+ /* 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, 256, 0);

- hpfb_get_var(&disp.var, -1, &fb_info);
- hpfb_set_disp(-1);
+ gen_set_var(&fb_info.var, -1, &fb_info);

if (register_framebuffer(&fb_info) < 0)
return 1;
-
return 0;
}

@@ -362,29 +201,25 @@
*/
#define INTFBADDR 0xf0560000

- if (hwreg_present((void *)INTFBADDR) && (DIO_ID(INTFBADDR) == DIO_ID_FBUFFER)
- && topcat_sid_ok(sid = DIO_SECID(INTFBADDR)))
- {
+ if (hwreg_present((void *)INTFBADDR) &&
+ (DIO_ID(INTFBADDR) == DIO_ID_FBUFFER) &&
+ topcat_sid_ok(sid = DIO_SECID(INTFBADDR))) {
printk("Internal Topcat found (secondary id %02x)\n", sid);
hpfb_init_one(INTFBADDR);
- }
- else
- {
+ } else {
int sc = dio_find(DIO_ID_FBUFFER);
- if (sc)
- {
+
+ if (sc) {
unsigned long addr = (unsigned long)dio_scodetoviraddr(sc);
unsigned int sid = DIO_SECID(addr);

- if (topcat_sid_ok(sid))
- {
+ if (topcat_sid_ok(sid)) {
printk("Topcat found at DIO select code %02x "
- "(secondary id %02x)\n", sc, sid);
+ "(secondary id %02x)\n", sc, sid);
hpfb_init_one(addr);
}
}
}
-
return 0;
}

-
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