p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
linux_old1/drivers/video/cg6.c

801 lines
21 KiB
C
Raw Blame History

/* cg6.c: CGSIX (GX, GXplus, TGX) frame buffer driver
*
* Copyright (C) 2003 David S. Miller (davem@redhat.com)
* Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz)
* Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
*
* Driver layout based loosely on tgafb.c, see that file for credits.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>
#include <asm/io.h>
#include <asm/sbus.h>
#include <asm/oplib.h>
#include <asm/fbio.h>
#include "sbuslib.h"
/*
* Local functions.
*/
static int cg6_setcolreg(unsigned, unsigned, unsigned, unsigned,
unsigned, struct fb_info *);
static int cg6_blank(int, struct fb_info *);
static void cg6_imageblit(struct fb_info *, const struct fb_image *);
static void cg6_fillrect(struct fb_info *, const struct fb_fillrect *);
static int cg6_sync(struct fb_info *);
static int cg6_mmap(struct fb_info *, struct file *, struct vm_area_struct *);
static int cg6_ioctl(struct inode *, struct file *, unsigned int,
unsigned long, struct fb_info *);
/*
* Frame buffer operations
*/
static struct fb_ops cg6_ops = {
.owner = THIS_MODULE,
.fb_setcolreg = cg6_setcolreg,
.fb_blank = cg6_blank,
.fb_fillrect = cg6_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cg6_imageblit,
.fb_sync = cg6_sync,
.fb_mmap = cg6_mmap,
.fb_ioctl = cg6_ioctl,
};
/* Offset of interesting structures in the OBIO space */
/*
* Brooktree is the video dac and is funny to program on the cg6.
* (it's even funnier on the cg3)
* The FBC could be the frame buffer control
* The FHC could is the frame buffer hardware control.
*/
#define CG6_ROM_OFFSET 0x0UL
#define CG6_BROOKTREE_OFFSET 0x200000UL
#define CG6_DHC_OFFSET 0x240000UL
#define CG6_ALT_OFFSET 0x280000UL
#define CG6_FHC_OFFSET 0x300000UL
#define CG6_THC_OFFSET 0x301000UL
#define CG6_FBC_OFFSET 0x700000UL
#define CG6_TEC_OFFSET 0x701000UL
#define CG6_RAM_OFFSET 0x800000UL
/* FHC definitions */
#define CG6_FHC_FBID_SHIFT 24
#define CG6_FHC_FBID_MASK 255
#define CG6_FHC_REV_SHIFT 20
#define CG6_FHC_REV_MASK 15
#define CG6_FHC_FROP_DISABLE (1 << 19)
#define CG6_FHC_ROW_DISABLE (1 << 18)
#define CG6_FHC_SRC_DISABLE (1 << 17)
#define CG6_FHC_DST_DISABLE (1 << 16)
#define CG6_FHC_RESET (1 << 15)
#define CG6_FHC_LITTLE_ENDIAN (1 << 13)
#define CG6_FHC_RES_MASK (3 << 11)
#define CG6_FHC_1024 (0 << 11)
#define CG6_FHC_1152 (1 << 11)
#define CG6_FHC_1280 (2 << 11)
#define CG6_FHC_1600 (3 << 11)
#define CG6_FHC_CPU_MASK (3 << 9)
#define CG6_FHC_CPU_SPARC (0 << 9)
#define CG6_FHC_CPU_68020 (1 << 9)
#define CG6_FHC_CPU_386 (2 << 9)
#define CG6_FHC_TEST (1 << 8)
#define CG6_FHC_TEST_X_SHIFT 4
#define CG6_FHC_TEST_X_MASK 15
#define CG6_FHC_TEST_Y_SHIFT 0
#define CG6_FHC_TEST_Y_MASK 15
/* FBC mode definitions */
#define CG6_FBC_BLIT_IGNORE 0x00000000
#define CG6_FBC_BLIT_NOSRC 0x00100000
#define CG6_FBC_BLIT_SRC 0x00200000
#define CG6_FBC_BLIT_ILLEGAL 0x00300000
#define CG6_FBC_BLIT_MASK 0x00300000
#define CG6_FBC_VBLANK 0x00080000
#define CG6_FBC_MODE_IGNORE 0x00000000
#define CG6_FBC_MODE_COLOR8 0x00020000
#define CG6_FBC_MODE_COLOR1 0x00040000
#define CG6_FBC_MODE_HRMONO 0x00060000
#define CG6_FBC_MODE_MASK 0x00060000
#define CG6_FBC_DRAW_IGNORE 0x00000000
#define CG6_FBC_DRAW_RENDER 0x00008000
#define CG6_FBC_DRAW_PICK 0x00010000
#define CG6_FBC_DRAW_ILLEGAL 0x00018000
#define CG6_FBC_DRAW_MASK 0x00018000
#define CG6_FBC_BWRITE0_IGNORE 0x00000000
#define CG6_FBC_BWRITE0_ENABLE 0x00002000
#define CG6_FBC_BWRITE0_DISABLE 0x00004000
#define CG6_FBC_BWRITE0_ILLEGAL 0x00006000
#define CG6_FBC_BWRITE0_MASK 0x00006000
#define CG6_FBC_BWRITE1_IGNORE 0x00000000
#define CG6_FBC_BWRITE1_ENABLE 0x00000800
#define CG6_FBC_BWRITE1_DISABLE 0x00001000
#define CG6_FBC_BWRITE1_ILLEGAL 0x00001800
#define CG6_FBC_BWRITE1_MASK 0x00001800
#define CG6_FBC_BREAD_IGNORE 0x00000000
#define CG6_FBC_BREAD_0 0x00000200
#define CG6_FBC_BREAD_1 0x00000400
#define CG6_FBC_BREAD_ILLEGAL 0x00000600
#define CG6_FBC_BREAD_MASK 0x00000600
#define CG6_FBC_BDISP_IGNORE 0x00000000
#define CG6_FBC_BDISP_0 0x00000080
#define CG6_FBC_BDISP_1 0x00000100
#define CG6_FBC_BDISP_ILLEGAL 0x00000180
#define CG6_FBC_BDISP_MASK 0x00000180
#define CG6_FBC_INDEX_MOD 0x00000040
#define CG6_FBC_INDEX_MASK 0x00000030
/* THC definitions */
#define CG6_THC_MISC_REV_SHIFT 16
#define CG6_THC_MISC_REV_MASK 15
#define CG6_THC_MISC_RESET (1 << 12)
#define CG6_THC_MISC_VIDEO (1 << 10)
#define CG6_THC_MISC_SYNC (1 << 9)
#define CG6_THC_MISC_VSYNC (1 << 8)
#define CG6_THC_MISC_SYNC_ENAB (1 << 7)
#define CG6_THC_MISC_CURS_RES (1 << 6)
#define CG6_THC_MISC_INT_ENAB (1 << 5)
#define CG6_THC_MISC_INT (1 << 4)
#define CG6_THC_MISC_INIT 0x9f
/* The contents are unknown */
struct cg6_tec {
volatile int tec_matrix;
volatile int tec_clip;
volatile int tec_vdc;
};
struct cg6_thc {
uint thc_pad0[512];
volatile uint thc_hs; /* hsync timing */
volatile uint thc_hsdvs;
volatile uint thc_hd;
volatile uint thc_vs; /* vsync timing */
volatile uint thc_vd;
volatile uint thc_refresh;
volatile uint thc_misc;
uint thc_pad1[56];
volatile uint thc_cursxy; /* cursor x,y position (16 bits each) */
volatile uint thc_cursmask[32]; /* cursor mask bits */
volatile uint thc_cursbits[32]; /* what to show where mask enabled */
};
struct cg6_fbc {
u32 xxx0[1];
volatile u32 mode;
volatile u32 clip;
u32 xxx1[1];
volatile u32 s;
volatile u32 draw;
volatile u32 blit;
volatile u32 font;
u32 xxx2[24];
volatile u32 x0, y0, z0, color0;
volatile u32 x1, y1, z1, color1;
volatile u32 x2, y2, z2, color2;
volatile u32 x3, y3, z3, color3;
volatile u32 offx, offy;
u32 xxx3[2];
volatile u32 incx, incy;
u32 xxx4[2];
volatile u32 clipminx, clipminy;
u32 xxx5[2];
volatile u32 clipmaxx, clipmaxy;
u32 xxx6[2];
volatile u32 fg;
volatile u32 bg;
volatile u32 alu;
volatile u32 pm;
volatile u32 pixelm;
u32 xxx7[2];
volatile u32 patalign;
volatile u32 pattern[8];
u32 xxx8[432];
volatile u32 apointx, apointy, apointz;
u32 xxx9[1];
volatile u32 rpointx, rpointy, rpointz;
u32 xxx10[5];
volatile u32 pointr, pointg, pointb, pointa;
volatile u32 alinex, aliney, alinez;
u32 xxx11[1];
volatile u32 rlinex, rliney, rlinez;
u32 xxx12[5];
volatile u32 liner, lineg, lineb, linea;
volatile u32 atrix, atriy, atriz;
u32 xxx13[1];
volatile u32 rtrix, rtriy, rtriz;
u32 xxx14[5];
volatile u32 trir, trig, trib, tria;
volatile u32 aquadx, aquady, aquadz;
u32 xxx15[1];
volatile u32 rquadx, rquady, rquadz;
u32 xxx16[5];
volatile u32 quadr, quadg, quadb, quada;
volatile u32 arectx, arecty, arectz;
u32 xxx17[1];
volatile u32 rrectx, rrecty, rrectz;
u32 xxx18[5];
volatile u32 rectr, rectg, rectb, recta;
};
struct bt_regs {
volatile u32 addr;
volatile u32 color_map;
volatile u32 control;
volatile u32 cursor;
};
struct cg6_par {
spinlock_t lock;
struct bt_regs __iomem *bt;
struct cg6_fbc __iomem *fbc;
struct cg6_thc __iomem *thc;
struct cg6_tec __iomem *tec;
volatile u32 __iomem *fhc;
u32 flags;
#define CG6_FLAG_BLANKED 0x00000001
unsigned long physbase;
unsigned long fbsize;
struct sbus_dev *sdev;
struct list_head list;
};
static int cg6_sync(struct fb_info *info)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct cg6_fbc __iomem *fbc = par->fbc;
int limit = 10000;
do {
if (!(sbus_readl(&fbc->s) & 0x10000000))
break;
udelay(10);
} while (--limit > 0);
return 0;
}
/**
* cg6_fillrect - REQUIRED function. Can use generic routines if
* non acclerated hardware and packed pixel based.
* Draws a rectangle on the screen.
*
* @info: frame buffer structure that represents a single frame buffer
* @rect: structure defining the rectagle and operation.
*/
static void cg6_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct cg6_fbc __iomem *fbc = par->fbc;
unsigned long flags;
s32 val;
/* XXX doesn't handle ROP_XOR */
spin_lock_irqsave(&par->lock, flags);
cg6_sync(info);
sbus_writel(rect->color, &fbc->fg);
sbus_writel(~(u32)0, &fbc->pixelm);
sbus_writel(0xea80ff00, &fbc->alu);
sbus_writel(0, &fbc->s);
sbus_writel(0, &fbc->clip);
sbus_writel(~(u32)0, &fbc->pm);
sbus_writel(rect->dy, &fbc->arecty);
sbus_writel(rect->dx, &fbc->arectx);
sbus_writel(rect->dy + rect->height, &fbc->arecty);
sbus_writel(rect->dx + rect->width, &fbc->arectx);
do {
val = sbus_readl(&fbc->draw);
} while (val < 0 && (val & 0x20000000));
spin_unlock_irqrestore(&par->lock, flags);
}
/**
* cg6_imageblit - REQUIRED function. Can use generic routines if
* non acclerated hardware and packed pixel based.
* Copies a image from system memory to the screen.
*
* @info: frame buffer structure that represents a single frame buffer
* @image: structure defining the image.
*/
static void cg6_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct cg6_fbc __iomem *fbc = par->fbc;
const u8 *data = image->data;
unsigned long flags;
u32 x, y;
int i, width;
if (image->depth > 1) {
cfb_imageblit(info, image);
return;
}
spin_lock_irqsave(&par->lock, flags);
cg6_sync(info);
sbus_writel(image->fg_color, &fbc->fg);
sbus_writel(image->bg_color, &fbc->bg);
sbus_writel(0x140000, &fbc->mode);
sbus_writel(0xe880fc30, &fbc->alu);
sbus_writel(~(u32)0, &fbc->pixelm);
sbus_writel(0, &fbc->s);
sbus_writel(0, &fbc->clip);
sbus_writel(0xff, &fbc->pm);
sbus_writel(32, &fbc->incx);
sbus_writel(0, &fbc->incy);
x = image->dx;
y = image->dy;
for (i = 0; i < image->height; i++) {
width = image->width;
while (width >= 32) {
u32 val;
sbus_writel(y, &fbc->y0);
sbus_writel(x, &fbc->x0);
sbus_writel(x + 32 - 1, &fbc->x1);
val = ((u32)data[0] << 24) |
((u32)data[1] << 16) |
((u32)data[2] << 8) |
((u32)data[3] << 0);
sbus_writel(val, &fbc->font);
data += 4;
x += 32;
width -= 32;
}
if (width) {
u32 val;
sbus_writel(y, &fbc->y0);
sbus_writel(x, &fbc->x0);
sbus_writel(x + width - 1, &fbc->x1);
if (width <= 8) {
val = (u32) data[0] << 24;
data += 1;
} else if (width <= 16) {
val = ((u32) data[0] << 24) |
((u32) data[1] << 16);
data += 2;
} else {
val = ((u32) data[0] << 24) |
((u32) data[1] << 16) |
((u32) data[2] << 8);
data += 3;
}
sbus_writel(val, &fbc->font);
}
y += 1;
x = image->dx;
}
spin_unlock_irqrestore(&par->lock, flags);
}
/**
* cg6_setcolreg - Optional function. Sets a color register.
* @regno: boolean, 0 copy local, 1 get_user() function
* @red: frame buffer colormap structure
* @green: The green value which can be up to 16 bits wide
* @blue: The blue value which can be up to 16 bits wide.
* @transp: If supported the alpha value which can be up to 16 bits wide.
* @info: frame buffer info structure
*/
static int cg6_setcolreg(unsigned regno,
unsigned red, unsigned green, unsigned blue,
unsigned transp, struct fb_info *info)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct bt_regs __iomem *bt = par->bt;
unsigned long flags;
if (regno >= 256)
return 1;
red >>= 8;
green >>= 8;
blue >>= 8;
spin_lock_irqsave(&par->lock, flags);
sbus_writel((u32)regno << 24, &bt->addr);
sbus_writel((u32)red << 24, &bt->color_map);
sbus_writel((u32)green << 24, &bt->color_map);
sbus_writel((u32)blue << 24, &bt->color_map);
spin_unlock_irqrestore(&par->lock, flags);
return 0;
}
/**
* cg6_blank - Optional function. Blanks the display.
* @blank_mode: the blank mode we want.
* @info: frame buffer structure that represents a single frame buffer
*/
static int
cg6_blank(int blank, struct fb_info *info)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct cg6_thc __iomem *thc = par->thc;
unsigned long flags;
u32 val;
spin_lock_irqsave(&par->lock, flags);
switch (blank) {
case FB_BLANK_UNBLANK: /* Unblanking */
val = sbus_readl(&thc->thc_misc);
val |= CG6_THC_MISC_VIDEO;
sbus_writel(val, &thc->thc_misc);
par->flags &= ~CG6_FLAG_BLANKED;
break;
case FB_BLANK_NORMAL: /* Normal blanking */
case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
case FB_BLANK_POWERDOWN: /* Poweroff */
val = sbus_readl(&thc->thc_misc);
val &= ~CG6_THC_MISC_VIDEO;
sbus_writel(val, &thc->thc_misc);
par->flags |= CG6_FLAG_BLANKED;
break;
}
spin_unlock_irqrestore(&par->lock, flags);
return 0;
}
static struct sbus_mmap_map cg6_mmap_map[] = {
{
.voff = CG6_FBC,
.poff = CG6_FBC_OFFSET,
.size = PAGE_SIZE
},
{
.voff = CG6_TEC,
.poff = CG6_TEC_OFFSET,
.size = PAGE_SIZE
},
{
.voff = CG6_BTREGS,
.poff = CG6_BROOKTREE_OFFSET,
.size = PAGE_SIZE
},
{
.voff = CG6_FHC,
.poff = CG6_FHC_OFFSET,
.size = PAGE_SIZE
},
{
.voff = CG6_THC,
.poff = CG6_THC_OFFSET,
.size = PAGE_SIZE
},
{
.voff = CG6_ROM,
.poff = CG6_ROM_OFFSET,
.size = 0x10000
},
{
.voff = CG6_RAM,
.poff = CG6_RAM_OFFSET,
.size = SBUS_MMAP_FBSIZE(1)
},
{
.voff = CG6_DHC,
.poff = CG6_DHC_OFFSET,
.size = 0x40000
},
{ .size = 0 }
};
static int cg6_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
{
struct cg6_par *par = (struct cg6_par *)info->par;
return sbusfb_mmap_helper(cg6_mmap_map,
par->physbase, par->fbsize,
par->sdev->reg_addrs[0].which_io,
vma);
}
static int cg6_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg, struct fb_info *info)
{
struct cg6_par *par = (struct cg6_par *) info->par;
return sbusfb_ioctl_helper(cmd, arg, info,
FBTYPE_SUNFAST_COLOR, 8, par->fbsize);
}
/*
* Initialisation
*/
static void
cg6_init_fix(struct fb_info *info, int linebytes)
{
struct cg6_par *par = (struct cg6_par *)info->par;
const char *cg6_cpu_name, *cg6_card_name;
u32 conf;
conf = sbus_readl(par->fhc);
switch(conf & CG6_FHC_CPU_MASK) {
case CG6_FHC_CPU_SPARC:
cg6_cpu_name = "sparc";
break;
case CG6_FHC_CPU_68020:
cg6_cpu_name = "68020";
break;
default:
cg6_cpu_name = "i386";
break;
};
if (((conf >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK) >= 11) {
if (par->fbsize <= 0x100000) {
cg6_card_name = "TGX";
} else {
cg6_card_name = "TGX+";
}
} else {
if (par->fbsize <= 0x100000) {
cg6_card_name = "GX";
} else {
cg6_card_name = "GX+";
}
}
sprintf(info->fix.id, "%s %s", cg6_card_name, cg6_cpu_name);
info->fix.id[sizeof(info->fix.id)-1] = 0;
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
info->fix.line_length = linebytes;
info->fix.accel = FB_ACCEL_SUN_CGSIX;
}
/* Initialize Brooktree DAC */
static void cg6_bt_init(struct cg6_par *par)
{
struct bt_regs __iomem *bt = par->bt;
sbus_writel(0x04 << 24, &bt->addr); /* color planes */
sbus_writel(0xff << 24, &bt->control);
sbus_writel(0x05 << 24, &bt->addr);
sbus_writel(0x00 << 24, &bt->control);
sbus_writel(0x06 << 24, &bt->addr); /* overlay plane */
sbus_writel(0x73 << 24, &bt->control);
sbus_writel(0x07 << 24, &bt->addr);
sbus_writel(0x00 << 24, &bt->control);
}
static void cg6_chip_init(struct fb_info *info)
{
struct cg6_par *par = (struct cg6_par *) info->par;
struct cg6_tec __iomem *tec = par->tec;
struct cg6_fbc __iomem *fbc = par->fbc;
u32 rev, conf, mode, tmp;
int i;
/* Turn off stuff in the Transform Engine. */
sbus_writel(0, &tec->tec_matrix);
sbus_writel(0, &tec->tec_clip);
sbus_writel(0, &tec->tec_vdc);
/* Take care of bugs in old revisions. */
rev = (sbus_readl(par->fhc) >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK;
if (rev < 5) {
conf = (sbus_readl(par->fhc) & CG6_FHC_RES_MASK) |
CG6_FHC_CPU_68020 | CG6_FHC_TEST |
(11 << CG6_FHC_TEST_X_SHIFT) |
(11 << CG6_FHC_TEST_Y_SHIFT);
if (rev < 2)
conf |= CG6_FHC_DST_DISABLE;
sbus_writel(conf, par->fhc);
}
/* Set things in the FBC. Bad things appear to happen if we do
* back to back store/loads on the mode register, so copy it
* out instead. */
mode = sbus_readl(&fbc->mode);
do {
i = sbus_readl(&fbc->s);
} while (i & 0x10000000);
mode &= ~(CG6_FBC_BLIT_MASK | CG6_FBC_MODE_MASK |
CG6_FBC_DRAW_MASK | CG6_FBC_BWRITE0_MASK |
CG6_FBC_BWRITE1_MASK | CG6_FBC_BREAD_MASK |
CG6_FBC_BDISP_MASK);
mode |= (CG6_FBC_BLIT_SRC | CG6_FBC_MODE_COLOR8 |
CG6_FBC_DRAW_RENDER | CG6_FBC_BWRITE0_ENABLE |
CG6_FBC_BWRITE1_DISABLE | CG6_FBC_BREAD_0 |
CG6_FBC_BDISP_0);
sbus_writel(mode, &fbc->mode);
sbus_writel(0, &fbc->clip);
sbus_writel(0, &fbc->offx);
sbus_writel(0, &fbc->offy);
sbus_writel(0, &fbc->clipminx);
sbus_writel(0, &fbc->clipminy);
sbus_writel(info->var.xres - 1, &fbc->clipmaxx);
sbus_writel(info->var.yres - 1, &fbc->clipmaxy);
/* Disable cursor in Brooktree DAC. */
sbus_writel(0x06 << 24, &par->bt->addr);
tmp = sbus_readl(&par->bt->control);
tmp &= ~(0x03 << 24);
sbus_writel(tmp, &par->bt->control);
}
struct all_info {
struct fb_info info;
struct cg6_par par;
struct list_head list;
};
static LIST_HEAD(cg6_list);
static void cg6_init_one(struct sbus_dev *sdev)
{
struct all_info *all;
int linebytes;
all = kmalloc(sizeof(*all), GFP_KERNEL);
if (!all) {
printk(KERN_ERR "cg6: Cannot allocate memory.\n");
return;
}
memset(all, 0, sizeof(*all));
INIT_LIST_HEAD(&all->list);
spin_lock_init(&all->par.lock);
all->par.sdev = sdev;
all->par.physbase = sdev->reg_addrs[0].phys_addr;
sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
all->info.var.red.length = 8;
all->info.var.green.length = 8;
all->info.var.blue.length = 8;
linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
all->info.var.xres);
all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
if (prom_getbool(sdev->prom_node, "dblbuf"))
all->par.fbsize *= 4;
all->par.fbc = sbus_ioremap(&sdev->resource[0], CG6_FBC_OFFSET,
4096, "cgsix fbc");
all->par.tec = sbus_ioremap(&sdev->resource[0], CG6_TEC_OFFSET,
sizeof(struct cg6_tec), "cgsix tec");
all->par.thc = sbus_ioremap(&sdev->resource[0], CG6_THC_OFFSET,
sizeof(struct cg6_thc), "cgsix thc");
all->par.bt = sbus_ioremap(&sdev->resource[0], CG6_BROOKTREE_OFFSET,
sizeof(struct bt_regs), "cgsix dac");
all->par.fhc = sbus_ioremap(&sdev->resource[0], CG6_FHC_OFFSET,
sizeof(u32), "cgsix fhc");
all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |
FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
all->info.fbops = &cg6_ops;
#ifdef CONFIG_SPARC32
all->info.screen_base = (char __iomem *)
prom_getintdefault(sdev->prom_node, "address", 0);
#endif
if (!all->info.screen_base)
all->info.screen_base =
sbus_ioremap(&sdev->resource[0], CG6_RAM_OFFSET,
all->par.fbsize, "cgsix ram");
all->info.par = &all->par;
all->info.var.accel_flags = FB_ACCELF_TEXT;
cg6_bt_init(&all->par);
cg6_chip_init(&all->info);
cg6_blank(0, &all->info);
if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
printk(KERN_ERR "cg6: Could not allocate color map.\n");
kfree(all);
return;
}
fb_set_cmap(&all->info.cmap, &all->info);
cg6_init_fix(&all->info, linebytes);
if (register_framebuffer(&all->info) < 0) {
printk(KERN_ERR "cg6: Could not register framebuffer.\n");
fb_dealloc_cmap(&all->info.cmap);
kfree(all);
return;
}
list_add(&all->list, &cg6_list);
printk("cg6: CGsix [%s] at %lx:%lx\n",
all->info.fix.id,
(long) sdev->reg_addrs[0].which_io,
(long) sdev->reg_addrs[0].phys_addr);
}
int __init cg6_init(void)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
if (fb_get_options("cg6fb", NULL))
return -ENODEV;
for_all_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, "cgsix") ||
!strcmp(sdev->prom_name, "cgthree+"))
cg6_init_one(sdev);
}
return 0;
}
void __exit cg6_exit(void)
{
struct list_head *pos, *tmp;
list_for_each_safe(pos, tmp, &cg6_list) {
struct all_info *all = list_entry(pos, typeof(*all), list);
unregister_framebuffer(&all->info);
fb_dealloc_cmap(&all->info.cmap);
kfree(all);
}
}
int __init
cg6_setup(char *arg)
{
/* No cmdline options yet... */
return 0;
}
module_init(cg6_init);
#ifdef MODULE
module_exit(cg6_exit);
#endif
MODULE_DESCRIPTION("framebuffer driver for CGsix chipsets");
MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
MODULE_LICENSE("GPL");
Reference in New Issue View Git Blame Copy Permalink