mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
macfb: cleanup
Cleanup whitespace and code style. Remove unused #includes and prototypes. Remove obsolete, redundant or misleading comments. Remove dead code and redundant initialisers. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
parent
1bb63845d1
commit
34c41d0ab8
1 changed files with 294 additions and 281 deletions
|
@ -1,29 +1,33 @@
|
|||
/* macfb.c: Generic framebuffer for Macs whose colourmaps/modes we
|
||||
don't know how to set */
|
||||
|
||||
/* (c) 1999 David Huggins-Daines <dhd@debian.org>
|
||||
|
||||
Primarily based on vesafb.c, by Gerd Knorr
|
||||
(c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
|
||||
|
||||
Also uses information and code from:
|
||||
|
||||
The original macfb.c from Linux/mac68k 2.0, by Alan Cox, Juergen
|
||||
Mellinger, Mikael Forselius, Michael Schmitz, and others.
|
||||
|
||||
valkyriefb.c, by Martin Costabel, Kevin Schoedel, Barry Nathan, Dan
|
||||
Jacobowitz, Paul Mackerras, Fabio Riccardi, and Geert Uytterhoeven.
|
||||
|
||||
This code is free software. You may copy, modify, and distribute
|
||||
it subject to the terms and conditions of the GNU General Public
|
||||
License, version 2, or any later version, at your convenience. */
|
||||
/*
|
||||
* macfb.c: Generic framebuffer for Macs whose colourmaps/modes we
|
||||
* don't know how to set.
|
||||
*
|
||||
* (c) 1999 David Huggins-Daines <dhd@debian.org>
|
||||
*
|
||||
* Primarily based on vesafb.c, by Gerd Knorr
|
||||
* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
|
||||
*
|
||||
* Also uses information and code from:
|
||||
*
|
||||
* The original macfb.c from Linux/mac68k 2.0, by Alan Cox, Juergen
|
||||
* Mellinger, Mikael Forselius, Michael Schmitz, and others.
|
||||
*
|
||||
* valkyriefb.c, by Martin Costabel, Kevin Schoedel, Barry Nathan, Dan
|
||||
* Jacobowitz, Paul Mackerras, Fabio Riccardi, and Geert Uytterhoeven.
|
||||
*
|
||||
* The VideoToolbox "Bugs" web page at
|
||||
* http://rajsky.psych.nyu.edu/Tips/VideoBugs.html
|
||||
*
|
||||
* This code is free software. You may copy, modify, and distribute
|
||||
* it subject to the terms and conditions of the GNU General Public
|
||||
* License, version 2, or any later version, at your convenience.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/nubus.h>
|
||||
#include <linux/init.h>
|
||||
|
@ -31,9 +35,6 @@
|
|||
|
||||
#include <asm/setup.h>
|
||||
#include <asm/bootinfo.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/macintosh.h>
|
||||
#include <asm/io.h>
|
||||
|
||||
|
@ -44,7 +45,7 @@
|
|||
#define DAFB_BASE 0xf9800200
|
||||
|
||||
/* Address for the built-in Civic framebuffer in Quadra AVs */
|
||||
#define CIVIC_BASE 0x50f30800 /* Only tested on 660AV! */
|
||||
#define CIVIC_BASE 0x50f30800
|
||||
|
||||
/* GSC (Gray Scale Controller) base address */
|
||||
#define GSC_BASE 0x50F20000
|
||||
|
@ -52,27 +53,9 @@
|
|||
/* CSC (Color Screen Controller) base address */
|
||||
#define CSC_BASE 0x50F20000
|
||||
|
||||
static int (*macfb_setpalette) (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info) = NULL;
|
||||
static int dafb_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int rbv_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int mdc_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int toby_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int civic_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int csc_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *fb_info);
|
||||
static int (*macfb_setpalette)(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info);
|
||||
|
||||
static struct {
|
||||
unsigned char addr;
|
||||
|
@ -106,15 +89,15 @@ static struct {
|
|||
} __iomem *civic_cmap_regs;
|
||||
|
||||
static struct {
|
||||
char pad1[0x40];
|
||||
unsigned char clut_waddr; /* 0x40 */
|
||||
char pad2;
|
||||
unsigned char clut_data; /* 0x42 */
|
||||
char pad3[0x3];
|
||||
unsigned char clut_raddr; /* 0x46 */
|
||||
char pad1[0x40];
|
||||
unsigned char clut_waddr; /* 0x40 */
|
||||
char pad2;
|
||||
unsigned char clut_data; /* 0x42 */
|
||||
char pad3[0x3];
|
||||
unsigned char clut_raddr; /* 0x46 */
|
||||
} __iomem *csc_cmap_regs;
|
||||
|
||||
/* We will leave these the way they are for the time being */
|
||||
/* The registers in these structs are in NuBus slot space */
|
||||
struct mdc_cmap_regs {
|
||||
char pad1[0x200200];
|
||||
unsigned char addr;
|
||||
|
@ -135,13 +118,12 @@ struct jet_cmap_regs {
|
|||
unsigned char lut;
|
||||
};
|
||||
|
||||
#define PIXEL_TO_MM(a) (((a)*10)/28) /* width in mm at 72 dpi */
|
||||
#define PIXEL_TO_MM(a) (((a)*10)/28) /* width in mm at 72 dpi */
|
||||
|
||||
/* mode */
|
||||
static int video_slot = 0;
|
||||
|
||||
static struct fb_var_screeninfo macfb_defined = {
|
||||
.bits_per_pixel = 8,
|
||||
.bits_per_pixel = 8,
|
||||
.activate = FB_ACTIVATE_NOW,
|
||||
.width = -1,
|
||||
.height = -1,
|
||||
|
@ -159,19 +141,19 @@ static struct fb_fix_screeninfo macfb_fix = {
|
|||
|
||||
static struct fb_info fb_info;
|
||||
static u32 pseudo_palette[16];
|
||||
static int inverse = 0;
|
||||
static int vidtest = 0;
|
||||
static int inverse;
|
||||
static int vidtest;
|
||||
|
||||
/* Unlike the Valkyrie, the DAFB cannot set individual colormap
|
||||
registers. Therefore, we do what the MacOS driver does (no
|
||||
kidding!) and simply set them one by one until we hit the one we
|
||||
want. */
|
||||
static int dafb_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
/*
|
||||
* Unlike the Valkyrie, the DAFB cannot set individual colormap
|
||||
* registers. Therefore, we do what the MacOS driver does (no
|
||||
* kidding!) and simply set them one by one until we hit the one we
|
||||
* want.
|
||||
*/
|
||||
static int dafb_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
{
|
||||
/* FIXME: really, really need to use ioremap() here,
|
||||
phys_to_virt() doesn't work anymore */
|
||||
static int lastreg = -1;
|
||||
unsigned long flags;
|
||||
|
||||
|
@ -180,42 +162,47 @@ static int dafb_setpalette (unsigned int regno, unsigned int red,
|
|||
blue >>= 8;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/* fbdev will set an entire colourmap, but X won't. Hopefully
|
||||
this should accommodate both of them */
|
||||
if (regno != lastreg+1) {
|
||||
|
||||
/*
|
||||
* fbdev will set an entire colourmap, but X won't. Hopefully
|
||||
* this should accommodate both of them
|
||||
*/
|
||||
if (regno != lastreg + 1) {
|
||||
int i;
|
||||
|
||||
|
||||
/* Stab in the dark trying to reset the CLUT pointer */
|
||||
nubus_writel(0, &dafb_cmap_regs->reset);
|
||||
nop();
|
||||
|
||||
|
||||
/* Loop until we get to the register we want */
|
||||
for (i = 0; i < regno; i++) {
|
||||
nubus_writeb(info->cmap.red[i] >> 8, &dafb_cmap_regs->lut);
|
||||
nubus_writeb(info->cmap.red[i] >> 8,
|
||||
&dafb_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(info->cmap.green[i] >> 8, &dafb_cmap_regs->lut);
|
||||
nubus_writeb(info->cmap.green[i] >> 8,
|
||||
&dafb_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(info->cmap.blue[i] >> 8, &dafb_cmap_regs->lut);
|
||||
nubus_writeb(info->cmap.blue[i] >> 8,
|
||||
&dafb_cmap_regs->lut);
|
||||
nop();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
nubus_writeb(red, &dafb_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(green, &dafb_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(blue, &dafb_cmap_regs->lut);
|
||||
|
||||
|
||||
local_irq_restore(flags);
|
||||
lastreg = regno;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* V8 and Brazil seem to use the same DAC. Sonora does as well. */
|
||||
static int v8_brazil_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
static int v8_brazil_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
{
|
||||
unsigned int bpp = info->var.bits_per_pixel;
|
||||
unsigned char _red =red>>8;
|
||||
|
@ -224,33 +211,36 @@ static int v8_brazil_setpalette (unsigned int regno, unsigned int red,
|
|||
unsigned char _regno;
|
||||
unsigned long flags;
|
||||
|
||||
if (bpp > 8) return 1; /* failsafe */
|
||||
if (bpp > 8)
|
||||
return 1; /* failsafe */
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/* On these chips, the CLUT register numbers are spread out
|
||||
across the register space. Thus:
|
||||
|
||||
In 8bpp, all regnos are valid.
|
||||
|
||||
In 4bpp, the regnos are 0x0f, 0x1f, 0x2f, etc, etc
|
||||
|
||||
In 2bpp, the regnos are 0x3f, 0x7f, 0xbf, 0xff */
|
||||
_regno = (regno << (8 - bpp)) | (0xFF >> bpp);
|
||||
nubus_writeb(_regno, &v8_brazil_cmap_regs->addr); nop();
|
||||
* across the register space. Thus:
|
||||
* In 8bpp, all regnos are valid.
|
||||
* In 4bpp, the regnos are 0x0f, 0x1f, 0x2f, etc, etc
|
||||
* In 2bpp, the regnos are 0x3f, 0x7f, 0xbf, 0xff
|
||||
*/
|
||||
_regno = (regno << (8 - bpp)) | (0xFF >> bpp);
|
||||
nubus_writeb(_regno, &v8_brazil_cmap_regs->addr);
|
||||
nop();
|
||||
|
||||
/* send one color channel at a time */
|
||||
nubus_writeb(_red, &v8_brazil_cmap_regs->lut); nop();
|
||||
nubus_writeb(_green, &v8_brazil_cmap_regs->lut); nop();
|
||||
nubus_writeb(_red, &v8_brazil_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_green, &v8_brazil_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_blue, &v8_brazil_cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags);
|
||||
local_irq_restore(flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rbv_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
/* RAM-Based Video */
|
||||
static int rbv_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
{
|
||||
/* use MSBs */
|
||||
unsigned char _red =red>>8;
|
||||
|
@ -259,10 +249,11 @@ static int rbv_setpalette (unsigned int regno, unsigned int red,
|
|||
unsigned char _regno;
|
||||
unsigned long flags;
|
||||
|
||||
if (info->var.bits_per_pixel > 8) return 1; /* failsafe */
|
||||
if (info->var.bits_per_pixel > 8)
|
||||
return 1; /* failsafe */
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
|
||||
/* From the VideoToolbox driver. Seems to be saying that
|
||||
* regno #254 and #255 are the important ones for 1-bit color,
|
||||
* regno #252-255 are the important ones for 2-bit color, etc.
|
||||
|
@ -270,21 +261,25 @@ static int rbv_setpalette (unsigned int regno, unsigned int red,
|
|||
_regno = regno + (256-(1 << info->var.bits_per_pixel));
|
||||
|
||||
/* reset clut? (VideoToolbox sez "not necessary") */
|
||||
nubus_writeb(0xFF, &rbv_cmap_regs->cntl); nop();
|
||||
|
||||
nubus_writeb(0xFF, &rbv_cmap_regs->cntl);
|
||||
nop();
|
||||
|
||||
/* tell clut which address to use. */
|
||||
nubus_writeb(_regno, &rbv_cmap_regs->addr); nop();
|
||||
|
||||
nubus_writeb(_regno, &rbv_cmap_regs->addr);
|
||||
nop();
|
||||
|
||||
/* send one color channel at a time. */
|
||||
nubus_writeb(_red, &rbv_cmap_regs->lut); nop();
|
||||
nubus_writeb(_green, &rbv_cmap_regs->lut); nop();
|
||||
nubus_writeb(_blue, &rbv_cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags); /* done. */
|
||||
nubus_writeb(_red, &rbv_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_green, &rbv_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_blue, &rbv_cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Macintosh Display Card (8x24) */
|
||||
/* Macintosh Display Card (8*24) */
|
||||
static int mdc_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
|
@ -299,11 +294,14 @@ static int mdc_setpalette(unsigned int regno, unsigned int red,
|
|||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
|
||||
/* the nop's are there to order writes. */
|
||||
nubus_writeb(_regno, &cmap_regs->addr); nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut); nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut); nop();
|
||||
nubus_writeb(_regno, &cmap_regs->addr);
|
||||
nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_blue, &cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags);
|
||||
|
@ -313,7 +311,7 @@ static int mdc_setpalette(unsigned int regno, unsigned int red,
|
|||
/* Toby frame buffer */
|
||||
static int toby_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
struct fb_info *info)
|
||||
{
|
||||
volatile struct toby_cmap_regs *cmap_regs =
|
||||
nubus_slot_addr(video_slot);
|
||||
|
@ -326,10 +324,13 @@ static int toby_setpalette(unsigned int regno, unsigned int red,
|
|||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
nubus_writeb(_regno, &cmap_regs->addr); nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut); nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut); nop();
|
||||
|
||||
nubus_writeb(_regno, &cmap_regs->addr);
|
||||
nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_blue, &cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags);
|
||||
|
@ -350,10 +351,13 @@ static int jet_setpalette(unsigned int regno, unsigned int red,
|
|||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
nubus_writeb(regno, &cmap_regs->addr); nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut); nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut); nop();
|
||||
|
||||
nubus_writeb(regno, &cmap_regs->addr);
|
||||
nop();
|
||||
nubus_writeb(_red, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_green, &cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(_blue, &cmap_regs->lut);
|
||||
|
||||
local_irq_restore(flags);
|
||||
|
@ -363,53 +367,31 @@ static int jet_setpalette(unsigned int regno, unsigned int red,
|
|||
/*
|
||||
* Civic framebuffer -- Quadra AV built-in video. A chip
|
||||
* called Sebastian holds the actual color palettes, and
|
||||
* apparently, there are two different banks of 512K RAM
|
||||
* apparently, there are two different banks of 512K RAM
|
||||
* which can act as separate framebuffers for doing video
|
||||
* input and viewing the screen at the same time! The 840AV
|
||||
* Can add another 1MB RAM to give the two framebuffers
|
||||
* Can add another 1MB RAM to give the two framebuffers
|
||||
* 1MB RAM apiece.
|
||||
*
|
||||
* FIXME: this doesn't seem to work anymore.
|
||||
*/
|
||||
static int civic_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
static int civic_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
{
|
||||
static int lastreg = -1;
|
||||
unsigned long flags;
|
||||
int clut_status;
|
||||
|
||||
if (info->var.bits_per_pixel > 8) return 1; /* failsafe */
|
||||
if (info->var.bits_per_pixel > 8)
|
||||
return 1; /* failsafe */
|
||||
|
||||
red >>= 8;
|
||||
green >>= 8;
|
||||
blue >>= 8;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/*
|
||||
* Set the register address
|
||||
*/
|
||||
nubus_writeb(regno, &civic_cmap_regs->addr); nop();
|
||||
|
||||
/*
|
||||
* Wait for VBL interrupt here;
|
||||
* They're usually not enabled from Penguin, so we won't check
|
||||
*/
|
||||
#if 0
|
||||
{
|
||||
#define CIVIC_VBL_OFFSET 0x120
|
||||
volatile unsigned long *vbl = nubus_readl(civic_cmap_regs->vbl_addr + CIVIC_VBL_OFFSET);
|
||||
/* do interrupt setup stuff here? */
|
||||
*vbl = 0L; nop(); /* clear */
|
||||
*vbl = 1L; nop(); /* set */
|
||||
while (*vbl != 0L) /* wait for next vbl */
|
||||
{
|
||||
usleep(10); /* needed? */
|
||||
}
|
||||
/* do interrupt shutdown stuff here? */
|
||||
}
|
||||
#endif
|
||||
/* Set the register address */
|
||||
nubus_writeb(regno, &civic_cmap_regs->addr);
|
||||
nop();
|
||||
|
||||
/*
|
||||
* Grab a status word and do some checking;
|
||||
|
@ -422,39 +404,52 @@ static int civic_setpalette (unsigned int regno, unsigned int red,
|
|||
#if 0
|
||||
if ((clut_status & 0x000D) != 0)
|
||||
{
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
}
|
||||
#endif
|
||||
|
||||
nubus_writeb( red, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(green, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb( blue, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb( 0x00, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(red, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(green, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(blue, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut);
|
||||
}
|
||||
else
|
||||
{
|
||||
unsigned char junk;
|
||||
|
||||
junk = nubus_readb(&civic_cmap_regs->lut); nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut); nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut); nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut); nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut);
|
||||
nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut);
|
||||
nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut);
|
||||
nop();
|
||||
junk = nubus_readb(&civic_cmap_regs->lut);
|
||||
nop();
|
||||
|
||||
if ((clut_status & 0x000D) != 0)
|
||||
{
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(0x00, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
}
|
||||
|
||||
nubus_writeb( red, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(green, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb( blue, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb( junk, &civic_cmap_regs->lut); nop();
|
||||
nubus_writeb(red, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(green, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(blue, &civic_cmap_regs->lut);
|
||||
nop();
|
||||
nubus_writeb(junk, &civic_cmap_regs->lut);
|
||||
}
|
||||
|
||||
local_irq_restore(flags);
|
||||
lastreg = regno;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
@ -463,10 +458,9 @@ static int civic_setpalette (unsigned int regno, unsigned int red,
|
|||
* (and the 5300 too, but that's a PowerMac). This function
|
||||
* brought to you in part by the ECSC driver for MkLinux.
|
||||
*/
|
||||
|
||||
static int csc_setpalette (unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
static int csc_setpalette(unsigned int regno, unsigned int red,
|
||||
unsigned int green, unsigned int blue,
|
||||
struct fb_info *info)
|
||||
{
|
||||
mdelay(1);
|
||||
nubus_writeb(regno, &csc_cmap_regs->clut_waddr);
|
||||
|
@ -481,10 +475,10 @@ static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green,
|
|||
struct fb_info *fb_info)
|
||||
{
|
||||
/*
|
||||
* 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.
|
||||
* 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 non-zero for invalid regno.
|
||||
*/
|
||||
|
||||
if (regno >= fb_info->cmap.len)
|
||||
|
@ -518,28 +512,22 @@ static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green,
|
|||
} else {
|
||||
/* 0:5:6:5 */
|
||||
((u32*) (fb_info->pseudo_palette))[regno] =
|
||||
((red & 0xf800) ) |
|
||||
((red & 0xf800) >> 0) |
|
||||
((green & 0xfc00) >> 5) |
|
||||
((blue & 0xf800) >> 11);
|
||||
}
|
||||
break;
|
||||
/* I'm pretty sure that one or the other of these
|
||||
doesn't exist on 68k Macs */
|
||||
/*
|
||||
* 24-bit colour almost doesn't exist on 68k Macs --
|
||||
* http://support.apple.com/kb/TA28634 (Old Article: 10992)
|
||||
*/
|
||||
case 24:
|
||||
red >>= 8;
|
||||
green >>= 8;
|
||||
blue >>= 8;
|
||||
((u32 *)(fb_info->pseudo_palette))[regno] =
|
||||
(red << fb_info->var.red.offset) |
|
||||
(green << fb_info->var.green.offset) |
|
||||
(blue << fb_info->var.blue.offset);
|
||||
break;
|
||||
case 32:
|
||||
red >>= 8;
|
||||
green >>= 8;
|
||||
blue >>= 8;
|
||||
((u32 *)(fb_info->pseudo_palette))[regno] =
|
||||
(red << fb_info->var.red.offset) |
|
||||
(red << fb_info->var.red.offset) |
|
||||
(green << fb_info->var.green.offset) |
|
||||
(blue << fb_info->var.blue.offset);
|
||||
break;
|
||||
|
@ -560,18 +548,19 @@ static struct fb_ops macfb_ops = {
|
|||
static void __init macfb_setup(char *options)
|
||||
{
|
||||
char *this_opt;
|
||||
|
||||
|
||||
if (!options || !*options)
|
||||
return;
|
||||
|
||||
|
||||
while ((this_opt = strsep(&options, ",")) != NULL) {
|
||||
if (!*this_opt) continue;
|
||||
|
||||
if (! strcmp(this_opt, "inverse"))
|
||||
inverse=1;
|
||||
/* This means "turn on experimental CLUT code" */
|
||||
else if (!strcmp(this_opt, "vidtest"))
|
||||
vidtest=1;
|
||||
if (!*this_opt)
|
||||
continue;
|
||||
|
||||
if (!strcmp(this_opt, "inverse"))
|
||||
inverse = 1;
|
||||
else
|
||||
if (!strcmp(this_opt, "vidtest"))
|
||||
vidtest = 1; /* enable experimental CLUT code */
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -607,48 +596,52 @@ static int __init macfb_init(void)
|
|||
mac_bi_data.id == MAC_MODEL_P588)
|
||||
return -ENODEV; /* See valkyriefb.c */
|
||||
|
||||
/* There can only be one internal video controller anyway so
|
||||
we're not too worried about this */
|
||||
macfb_defined.xres = mac_bi_data.dimensions & 0xFFFF;
|
||||
macfb_defined.yres = mac_bi_data.dimensions >> 16;
|
||||
macfb_defined.bits_per_pixel = mac_bi_data.videodepth;
|
||||
|
||||
macfb_fix.line_length = mac_bi_data.videorow;
|
||||
macfb_fix.smem_len = macfb_fix.line_length * macfb_defined.yres;
|
||||
macfb_fix.smem_len = macfb_fix.line_length * macfb_defined.yres;
|
||||
/* Note: physical address (since 2.1.127) */
|
||||
macfb_fix.smem_start = mac_bi_data.videoaddr;
|
||||
/* This is actually redundant with the initial mappings.
|
||||
However, there are some non-obvious aspects to the way
|
||||
those mappings are set up, so this is in fact the safest
|
||||
way to ensure that this driver will work on every possible
|
||||
Mac */
|
||||
macfb_fix.smem_start = mac_bi_data.videoaddr;
|
||||
|
||||
/*
|
||||
* This is actually redundant with the initial mappings.
|
||||
* However, there are some non-obvious aspects to the way
|
||||
* those mappings are set up, so this is in fact the safest
|
||||
* way to ensure that this driver will work on every possible Mac
|
||||
*/
|
||||
fb_info.screen_base = ioremap(mac_bi_data.videoaddr, macfb_fix.smem_len);
|
||||
|
||||
printk("macfb: framebuffer at 0x%08lx, mapped to 0x%p, size %dk\n",
|
||||
macfb_fix.smem_start, fb_info.screen_base, macfb_fix.smem_len/1024);
|
||||
macfb_fix.smem_start, fb_info.screen_base,
|
||||
macfb_fix.smem_len / 1024);
|
||||
printk("macfb: mode is %dx%dx%d, linelength=%d\n",
|
||||
macfb_defined.xres, macfb_defined.yres, macfb_defined.bits_per_pixel, macfb_fix.line_length);
|
||||
|
||||
macfb_defined.xres, macfb_defined.yres,
|
||||
macfb_defined.bits_per_pixel, macfb_fix.line_length);
|
||||
|
||||
/*
|
||||
* Fill in the available video resolution
|
||||
* Fill in the available video resolution
|
||||
*/
|
||||
|
||||
macfb_defined.xres_virtual = macfb_defined.xres;
|
||||
macfb_defined.yres_virtual = macfb_defined.yres;
|
||||
macfb_defined.height = PIXEL_TO_MM(macfb_defined.yres);
|
||||
macfb_defined.width = PIXEL_TO_MM(macfb_defined.xres);
|
||||
macfb_defined.xres_virtual = macfb_defined.xres;
|
||||
macfb_defined.yres_virtual = macfb_defined.yres;
|
||||
macfb_defined.height = PIXEL_TO_MM(macfb_defined.yres);
|
||||
macfb_defined.width = PIXEL_TO_MM(macfb_defined.xres);
|
||||
|
||||
printk("macfb: scrolling: redraw\n");
|
||||
macfb_defined.yres_virtual = macfb_defined.yres;
|
||||
|
||||
/* some dummy values for timing to make fbset happy */
|
||||
macfb_defined.pixclock = 10000000 / macfb_defined.xres * 1000 / macfb_defined.yres;
|
||||
macfb_defined.pixclock = 10000000 / macfb_defined.xres *
|
||||
1000 / macfb_defined.yres;
|
||||
macfb_defined.left_margin = (macfb_defined.xres / 8) & 0xf8;
|
||||
macfb_defined.hsync_len = (macfb_defined.xres / 8) & 0xf8;
|
||||
|
||||
switch (macfb_defined.bits_per_pixel) {
|
||||
case 1:
|
||||
/* XXX: I think this will catch any program that tries
|
||||
to do FBIO_PUTCMAP when the visual is monochrome */
|
||||
/*
|
||||
* XXX: I think this will catch any program that tries
|
||||
* to do FBIO_PUTCMAP when the visual is monochrome.
|
||||
*/
|
||||
macfb_defined.red.length = macfb_defined.bits_per_pixel;
|
||||
macfb_defined.green.length = macfb_defined.bits_per_pixel;
|
||||
macfb_defined.blue.length = macfb_defined.bits_per_pixel;
|
||||
|
@ -676,14 +669,14 @@ static int __init macfb_init(void)
|
|||
printk("macfb: directcolor: "
|
||||
"size=1:5:5:5, shift=15:10:5:0\n");
|
||||
video_cmap_len = 16;
|
||||
/* Should actually be FB_VISUAL_DIRECTCOLOR, but this
|
||||
works too */
|
||||
/*
|
||||
* Should actually be FB_VISUAL_DIRECTCOLOR, but this
|
||||
* works too
|
||||
*/
|
||||
macfb_fix.visual = FB_VISUAL_TRUECOLOR;
|
||||
break;
|
||||
case 24:
|
||||
case 32:
|
||||
/* XXX: have to test these... can any 68k Macs
|
||||
actually do this on internal video? */
|
||||
macfb_defined.red.offset = 16;
|
||||
macfb_defined.red.length = 8;
|
||||
macfb_defined.green.offset = 8;
|
||||
|
@ -697,18 +690,19 @@ static int __init macfb_init(void)
|
|||
default:
|
||||
video_cmap_len = 0;
|
||||
macfb_fix.visual = FB_VISUAL_MONO01;
|
||||
printk("macfb: unknown or unsupported bit depth: %d\n", macfb_defined.bits_per_pixel);
|
||||
printk("macfb: unknown or unsupported bit depth: %d\n",
|
||||
macfb_defined.bits_per_pixel);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Hardware dependent stuff */
|
||||
/* We take a wild guess that if the video physical address is
|
||||
* in nubus slot space, that the nubus card is driving video.
|
||||
* Penguin really ought to tell us whether we are using internal
|
||||
* video or not.
|
||||
/*
|
||||
* We take a wild guess that if the video physical address is
|
||||
* in nubus slot space, that the nubus card is driving video.
|
||||
* Penguin really ought to tell us whether we are using internal
|
||||
* video or not.
|
||||
* Hopefully we only find one of them. Otherwise our NuBus
|
||||
* code is really broken :-)
|
||||
*/
|
||||
/* Hopefully we only find one of them. Otherwise our NuBus
|
||||
code is really broken :-) */
|
||||
|
||||
while ((ndev = nubus_find_type(NUBUS_CAT_DISPLAY, NUBUS_TYPE_VIDEO, ndev))
|
||||
!= NULL)
|
||||
|
@ -736,7 +730,7 @@ static int __init macfb_init(void)
|
|||
strcpy(macfb_fix.id, "Jet");
|
||||
macfb_setpalette = jet_setpalette;
|
||||
macfb_defined.activate = FB_ACTIVATE_NOW;
|
||||
break;
|
||||
break;
|
||||
default:
|
||||
strcpy(macfb_fix.id, "Generic NuBus");
|
||||
break;
|
||||
|
@ -744,20 +738,19 @@ static int __init macfb_init(void)
|
|||
}
|
||||
|
||||
/* If it's not a NuBus card, it must be internal video */
|
||||
/* FIXME: this function is getting way too big. (this driver
|
||||
is too...) */
|
||||
if (!video_is_nubus)
|
||||
switch( mac_bi_data.id )
|
||||
{
|
||||
/* DAFB Quadras */
|
||||
/* Note: these first four have the v7 DAFB, which is
|
||||
known to be rather unlike the ones used in the
|
||||
other models */
|
||||
switch (mac_bi_data.id) {
|
||||
/*
|
||||
* DAFB Quadras
|
||||
* Note: these first four have the v7 DAFB, which is
|
||||
* known to be rather unlike the ones used in the
|
||||
* other models
|
||||
*/
|
||||
case MAC_MODEL_P475:
|
||||
case MAC_MODEL_P475F:
|
||||
case MAC_MODEL_P575:
|
||||
case MAC_MODEL_Q605:
|
||||
|
||||
|
||||
case MAC_MODEL_Q800:
|
||||
case MAC_MODEL_Q650:
|
||||
case MAC_MODEL_Q610:
|
||||
|
@ -772,17 +765,21 @@ static int __init macfb_init(void)
|
|||
dafb_cmap_regs = ioremap(DAFB_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
/* LC II uses the V8 framebuffer */
|
||||
/*
|
||||
* LC II uses the V8 framebuffer
|
||||
*/
|
||||
case MAC_MODEL_LCII:
|
||||
strcpy(macfb_fix.id, "V8");
|
||||
macfb_setpalette = v8_brazil_setpalette;
|
||||
macfb_defined.activate = FB_ACTIVATE_NOW;
|
||||
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
/* IIvi, IIvx use the "Brazil" framebuffer (which is
|
||||
very much like the V8, it seems, and probably uses
|
||||
the same DAC) */
|
||||
|
||||
/*
|
||||
* IIvi, IIvx use the "Brazil" framebuffer (which is
|
||||
* very much like the V8, it seems, and probably uses
|
||||
* the same DAC)
|
||||
*/
|
||||
case MAC_MODEL_IIVI:
|
||||
case MAC_MODEL_IIVX:
|
||||
case MAC_MODEL_P600:
|
||||
|
@ -791,12 +788,14 @@ static int __init macfb_init(void)
|
|||
macfb_defined.activate = FB_ACTIVATE_NOW;
|
||||
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
/* LC III (and friends) use the Sonora framebuffer */
|
||||
/* Incidentally this is also used in the non-AV models
|
||||
of the x100 PowerMacs */
|
||||
/* These do in fact seem to use the same DAC interface
|
||||
as the LC II. */
|
||||
|
||||
/*
|
||||
* LC III (and friends) use the Sonora framebuffer
|
||||
* Incidentally this is also used in the non-AV models
|
||||
* of the x100 PowerMacs
|
||||
* These do in fact seem to use the same DAC interface
|
||||
* as the LC II.
|
||||
*/
|
||||
case MAC_MODEL_LCIII:
|
||||
case MAC_MODEL_P520:
|
||||
case MAC_MODEL_P550:
|
||||
|
@ -807,9 +806,11 @@ static int __init macfb_init(void)
|
|||
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
/* IIci and IIsi use the infamous RBV chip
|
||||
(the IIsi is just a rebadged and crippled
|
||||
IIci in a different case, BTW) */
|
||||
/*
|
||||
* IIci and IIsi use the infamous RBV chip
|
||||
* (the IIsi is just a rebadged and crippled
|
||||
* IIci in a different case, BTW)
|
||||
*/
|
||||
case MAC_MODEL_IICI:
|
||||
case MAC_MODEL_IISI:
|
||||
macfb_setpalette = rbv_setpalette;
|
||||
|
@ -818,7 +819,9 @@ static int __init macfb_init(void)
|
|||
rbv_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
/* AVs use the Civic framebuffer */
|
||||
/*
|
||||
* AVs use the Civic framebuffer
|
||||
*/
|
||||
case MAC_MODEL_Q840:
|
||||
case MAC_MODEL_C660:
|
||||
macfb_setpalette = civic_setpalette;
|
||||
|
@ -828,15 +831,10 @@ static int __init macfb_init(void)
|
|||
break;
|
||||
|
||||
|
||||
/* Write a setpalette function for your machine, then
|
||||
you can add something similar here. These are
|
||||
grouped by classes of video chipsets. Some of this
|
||||
information is from the VideoToolbox "Bugs" web
|
||||
page at
|
||||
http://rajsky.psych.nyu.edu/Tips/VideoBugs.html */
|
||||
|
||||
/* Assorted weirdos */
|
||||
/* We think this may be like the LC II */
|
||||
/*
|
||||
* Assorted weirdos
|
||||
* We think this may be like the LC II
|
||||
*/
|
||||
case MAC_MODEL_LC:
|
||||
if (vidtest) {
|
||||
macfb_setpalette = v8_brazil_setpalette;
|
||||
|
@ -846,7 +844,10 @@ static int __init macfb_init(void)
|
|||
}
|
||||
strcpy(macfb_fix.id, "LC");
|
||||
break;
|
||||
/* We think this may be like the LC II */
|
||||
|
||||
/*
|
||||
* We think this may be like the LC II
|
||||
*/
|
||||
case MAC_MODEL_CCL:
|
||||
if (vidtest) {
|
||||
macfb_setpalette = v8_brazil_setpalette;
|
||||
|
@ -857,23 +858,29 @@ static int __init macfb_init(void)
|
|||
strcpy(macfb_fix.id, "Color Classic");
|
||||
break;
|
||||
|
||||
/* And we *do* mean "weirdos" */
|
||||
/*
|
||||
* And we *do* mean "weirdos"
|
||||
*/
|
||||
case MAC_MODEL_TV:
|
||||
strcpy(macfb_fix.id, "Mac TV");
|
||||
break;
|
||||
|
||||
/* These don't have colour, so no need to worry */
|
||||
/*
|
||||
* These don't have colour, so no need to worry
|
||||
*/
|
||||
case MAC_MODEL_SE30:
|
||||
case MAC_MODEL_CLII:
|
||||
strcpy(macfb_fix.id, "Monochrome");
|
||||
break;
|
||||
|
||||
/* Powerbooks are particularly difficult. Many of
|
||||
them have separate framebuffers for external and
|
||||
internal video, which is admittedly pretty cool,
|
||||
but will be a bit of a headache to support here.
|
||||
Also, many of them are grayscale, and we don't
|
||||
really support that. */
|
||||
/*
|
||||
* Powerbooks are particularly difficult. Many of
|
||||
* them have separate framebuffers for external and
|
||||
* internal video, which is admittedly pretty cool,
|
||||
* but will be a bit of a headache to support here.
|
||||
* Also, many of them are grayscale, and we don't
|
||||
* really support that.
|
||||
*/
|
||||
|
||||
case MAC_MODEL_PB140:
|
||||
case MAC_MODEL_PB145:
|
||||
|
@ -881,7 +888,9 @@ static int __init macfb_init(void)
|
|||
strcpy(macfb_fix.id, "DDC");
|
||||
break;
|
||||
|
||||
/* Internal is GSC, External (if present) is ViSC */
|
||||
/*
|
||||
* Internal is GSC, External (if present) is ViSC
|
||||
*/
|
||||
case MAC_MODEL_PB150: /* no external video */
|
||||
case MAC_MODEL_PB160:
|
||||
case MAC_MODEL_PB165:
|
||||
|
@ -891,13 +900,17 @@ static int __init macfb_init(void)
|
|||
strcpy(macfb_fix.id, "GSC");
|
||||
break;
|
||||
|
||||
/* Internal is TIM, External is ViSC */
|
||||
/*
|
||||
* Internal is TIM, External is ViSC
|
||||
*/
|
||||
case MAC_MODEL_PB165C:
|
||||
case MAC_MODEL_PB180C:
|
||||
strcpy(macfb_fix.id, "TIM");
|
||||
break;
|
||||
|
||||
/* Internal is CSC, External is Keystone+Ariel. */
|
||||
/*
|
||||
* Internal is CSC, External is Keystone+Ariel.
|
||||
*/
|
||||
case MAC_MODEL_PB190: /* external video is optional */
|
||||
case MAC_MODEL_PB520:
|
||||
case MAC_MODEL_PB250:
|
||||
|
@ -909,7 +922,7 @@ static int __init macfb_init(void)
|
|||
strcpy(macfb_fix.id, "CSC");
|
||||
csc_cmap_regs = ioremap(CSC_BASE, 0x1000);
|
||||
break;
|
||||
|
||||
|
||||
default:
|
||||
strcpy(macfb_fix.id, "Unknown");
|
||||
break;
|
||||
|
@ -924,7 +937,7 @@ static int __init macfb_init(void)
|
|||
err = fb_alloc_cmap(&fb_info.cmap, video_cmap_len, 0);
|
||||
if (err)
|
||||
goto fail_unmap;
|
||||
|
||||
|
||||
err = register_framebuffer(&fb_info);
|
||||
if (err)
|
||||
goto fail_dealloc;
|
||||
|
|
Loading…
Reference in a new issue