Skip to content

R
raspberrypi-kernel

openeuler / raspberrypi-kernel

通知 13
Star 1
Fork 0
R
raspberrypi-kernel
提交 34c41d0a 编写于 作者: F Finn Thain 提交者： Geert Uytterhoeven
浏览文件
操作

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: NFinn Thain <fthain@telegraphics.com.au>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
上级 1bb63845
隐藏空白更改
内联 并排
Showing with 295 addition and 282 deletion
drivers/video/macfb.c
浏览文件 @ 34c41d0a
/* 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;
/* 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)
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)
{
/* 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;
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或