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Commit 2079b4ad authored by David S. Miller's avatar David S. Miller
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[FRAMEBUFFER]: Convert TCX driver to new APIs.

parent 7e2fb365
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Showing with 501 additions and 370 deletions
drivers/video/Kconfig
View file @ 2079b4ad
...@@ -818,7 +818,7 @@ config FB_FFB ...@@ -818,7 +818,7 @@ config FB_FFB
config FB_TCX config FB_TCX
bool "TCX (SS4/SS5 only) support" bool "TCX (SS4/SS5 only) support"
depends on FB_SBUS && SPARC32 depends on FB_SBUS
help help
This is the frame buffer device driver for the TCX 24/8bit frame This is the frame buffer device driver for the TCX 24/8bit frame
buffer. buffer.
......
drivers/video/Makefile
View file @ 2079b4ad
...@@ -71,7 +71,6 @@ obj-$(CONFIG_FB_PVR2) += pvr2fb.o ...@@ -71,7 +71,6 @@ obj-$(CONFIG_FB_PVR2) += pvr2fb.o
obj-$(CONFIG_FB_VOODOO1) += sstfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o obj-$(CONFIG_FB_VOODOO1) += sstfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
# One by one these are being converted over to the new APIs # One by one these are being converted over to the new APIs
#obj-$(CONFIG_FB_TCX) += tcxfb.o sbusfb.o
#obj-$(CONFIG_FB_LEO) += leofb.o sbusfb.o #obj-$(CONFIG_FB_LEO) += leofb.o sbusfb.o
obj-$(CONFIG_FB_FFB) += ffb.o sbuslib.o cfbimgblt.o cfbcopyarea.o obj-$(CONFIG_FB_FFB) += ffb.o sbuslib.o cfbimgblt.o cfbcopyarea.o
...@@ -84,6 +83,8 @@ obj-$(CONFIG_FB_CG14) += cg14.o sbuslib.o cfbimgblt.o cfbcopyarea.o ...@@ -84,6 +83,8 @@ obj-$(CONFIG_FB_CG14) += cg14.o sbuslib.o cfbimgblt.o cfbcopyarea.o
cfbfillrect.o cfbfillrect.o
obj-$(CONFIG_FB_P9100) += p9100.o sbuslib.o cfbimgblt.o cfbcopyarea.o \ obj-$(CONFIG_FB_P9100) += p9100.o sbuslib.o cfbimgblt.o cfbcopyarea.o \
cfbfillrect.o cfbfillrect.o
obj-$(CONFIG_FB_TCX) += tcx.o sbuslib.o cfbimgblt.o cfbcopyarea.o \
cfbfillrect.o
# Files generated that shall be removed upon make clean # Files generated that shall be removed upon make clean
clean-files := promcon_tbl.c clean-files := promcon_tbl.c
......
drivers/video/fbmem.c
View file @ 2079b4ad
...@@ -156,6 +156,8 @@ extern int cg14_init(void); ...@@ -156,6 +156,8 @@ extern int cg14_init(void);
extern int cg14_setup(char*); extern int cg14_setup(char*);
extern int p9100_init(void); extern int p9100_init(void);
extern int p9100_setup(char*); extern int p9100_setup(char*);
extern int tcx_init(void);
extern int tcx_setup(char*);
static struct { static struct {
const char *name; const char *name;
...@@ -265,6 +267,9 @@ static struct { ...@@ -265,6 +267,9 @@ static struct {
#ifdef CONFIG_FB_P9100 #ifdef CONFIG_FB_P9100
{ "p9100", p9100_init, p9100_setup }, { "p9100", p9100_init, p9100_setup },
#endif #endif
#ifdef CONFIG_FB_TCX
{ "tcx", tcx_init, tcx_setup },
#endif
/* /*
* Generic drivers that are used as fallbacks * Generic drivers that are used as fallbacks
......
drivers/video/tcx.c 0 → 100644
View file @ 2079b4ad
/* tcx.c: TCX 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 tcx_check_var(struct fb_var_screeninfo *, struct fb_info *);
static int tcx_set_par(struct fb_info *);
static int tcx_setcolreg(unsigned, unsigned, unsigned, unsigned,
unsigned, struct fb_info *);
static int tcx_blank(int, struct fb_info *);
static int tcx_mmap(struct fb_info *, struct file *, struct vm_area_struct *);
/*
* Frame buffer operations
*/
static struct fb_ops tcx_ops = {
.owner = THIS_MODULE,
.fb_check_var = tcx_check_var,
.fb_set_par = tcx_set_par,
.fb_setcolreg = tcx_setcolreg,
.fb_blank = tcx_blank,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_mmap = tcx_mmap,
.fb_cursor = soft_cursor,
};
/* THC definitions */
#define TCX_THC_MISC_REV_SHIFT 16
#define TCX_THC_MISC_REV_MASK 15
#define TCX_THC_MISC_VSYNC_DIS (1 << 25)
#define TCX_THC_MISC_HSYNC_DIS (1 << 24)
#define TCX_THC_MISC_RESET (1 << 12)
#define TCX_THC_MISC_VIDEO (1 << 10)
#define TCX_THC_MISC_SYNC (1 << 9)
#define TCX_THC_MISC_VSYNC (1 << 8)
#define TCX_THC_MISC_SYNC_ENAB (1 << 7)
#define TCX_THC_MISC_CURS_RES (1 << 6)
#define TCX_THC_MISC_INT_ENAB (1 << 5)
#define TCX_THC_MISC_INT (1 << 4)
#define TCX_THC_MISC_INIT 0x9f
#define TCX_THC_REV_REV_SHIFT 20
#define TCX_THC_REV_REV_MASK 15
#define TCX_THC_REV_MINREV_SHIFT 28
#define TCX_THC_REV_MINREV_MASK 15
/* The contents are unknown */
struct tcx_tec {
volatile u32 tec_matrix;
volatile u32 tec_clip;
volatile u32 tec_vdc;
};
struct tcx_thc {
volatile u32 thc_rev;
u32 thc_pad0[511];
volatile u32 thc_hs; /* hsync timing */
volatile u32 thc_hsdvs;
volatile u32 thc_hd;
volatile u32 thc_vs; /* vsync timing */
volatile u32 thc_vd;
volatile u32 thc_refresh;
volatile u32 thc_misc;
u32 thc_pad1[56];
volatile u32 thc_cursxy; /* cursor x,y position (16 bits each) */
volatile u32 thc_cursmask[32]; /* cursor mask bits */
volatile u32 thc_cursbits[32]; /* what to show where mask enabled */
};
struct bt_regs {
volatile u32 addr;
volatile u32 color_map;
volatile u32 control;
volatile u32 cursor;
};
#define TCX_MMAP_ENTRIES 14
struct tcx_par {
spinlock_t lock;
struct bt_regs *bt;
struct tcx_thc *thc;
struct tcx_tec *tec;
volatile u32 *cplane;
u32 flags;
#define TCX_FLAG_BLANKED 0x00000001
unsigned long physbase;
unsigned long fbsize;
struct sbus_mmap_map mmap_map[TCX_MMAP_ENTRIES];
int lowdepth;
struct sbus_dev *sdev;
struct list_head list;
};
/* Reset control plane so that WID is 8-bit plane. */
static void __tcx_set_control_plane (struct tcx_par *par)
{
volatile u32 *p, *pend;
if (par->lowdepth)
return;
p = par->cplane;
if (p == NULL)
return;
for (pend = p + par->fbsize; p < pend; p++) {
u32 tmp = sbus_readl(p);
tmp &= 0xffffff;
sbus_writel(tmp, p);
}
}
static void tcx_reset (struct fb_info *info)
{
struct tcx_par *par = (struct tcx_par *) info->par;
unsigned long flags;
spin_lock_irqsave(&par->lock, flags);
__tcx_set_control_plane(par);
spin_unlock_irqrestore(&par->lock, flags);
}
/**
* tcx_check_var - Optional function. Validates a var passed in.
* @var: frame buffer variable screen structure
* @info: frame buffer structure that represents a single frame buffer
*/
static int tcx_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->bits_per_pixel != 8)
return -EINVAL;
if (var->xres_virtual != var->xres || var->yres_virtual != var->yres)
return -EINVAL;
if (var->nonstd)
return -EINVAL;
if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
return -EINVAL;
if (var->xres != info->var.xres || var->yres != info->var.yres)
return -EINVAL;
return 0;
}
/**
* tcx_set_par - Optional function. Alters the hardware state.
* @info: frame buffer structure that represents a single frame buffer
*/
static int
tcx_set_par(struct fb_info *info)
{
return 0;
}
/**
* tcx_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 tcx_setcolreg(unsigned regno,
unsigned red, unsigned green, unsigned blue,
unsigned transp, struct fb_info *info)
{
struct tcx_par *par = (struct tcx_par *) info->par;
struct bt_regs *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(regno << 24, &bt->addr);
sbus_writel(red << 24, &bt->color_map);
sbus_writel(green << 24, &bt->color_map);
sbus_writel(blue << 24, &bt->color_map);
spin_unlock_irqrestore(&par->lock, flags);
return 0;
}
/**
* tcx_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
tcx_blank(int blank, struct fb_info *info)
{
struct tcx_par *par = (struct tcx_par *) info->par;
struct tcx_thc *thc = par->thc;
unsigned long flags;
u32 val;
spin_lock_irqsave(&par->lock, flags);
val = sbus_readl(&thc->thc_misc);
switch (blank) {
case 0: /* Unblanking */
val &= ~(TCX_THC_MISC_VSYNC_DIS |
TCX_THC_MISC_HSYNC_DIS);
val |= TCX_THC_MISC_VIDEO;
par->flags &= ~TCX_FLAG_BLANKED;
break;
case 1: /* Normal blanking */
val &= ~TCX_THC_MISC_VIDEO;
par->flags |= TCX_FLAG_BLANKED;
break;
case 2: /* VESA blank (vsync off) */
val |= TCX_THC_MISC_VSYNC_DIS;
break;
case 3: /* VESA blank (hsync off) */
val |= TCX_THC_MISC_HSYNC_DIS;
break;
case 4: /* Poweroff */
break;
};
sbus_writel(val, &thc->thc_misc);
spin_unlock_irqrestore(&par->lock, flags);
return 0;
}
static struct sbus_mmap_map __tcx_mmap_map[TCX_MMAP_ENTRIES] = {
{ TCX_RAM8BIT, 0, SBUS_MMAP_FBSIZE(1) },
{ TCX_RAM24BIT, 0, SBUS_MMAP_FBSIZE(4) },
{ TCX_UNK3, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_UNK4, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_CONTROLPLANE, 0, SBUS_MMAP_FBSIZE(4) },
{ TCX_UNK6, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_UNK7, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_TEC, 0, PAGE_SIZE },
{ TCX_BTREGS, 0, PAGE_SIZE },
{ TCX_THC, 0, PAGE_SIZE },
{ TCX_DHC, 0, PAGE_SIZE },
{ TCX_ALT, 0, PAGE_SIZE },
{ TCX_UNK2, 0, 0x20000 },
{ 0, 0, 0 }
};
static int tcx_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
{
struct tcx_par *par = (struct tcx_par *)info->par;
return sbusfb_mmap_helper(par->mmap_map,
par->physbase, par->fbsize,
par->sdev->reg_addrs[0].which_io,
vma);
}
/*
* Initialisation
*/
static void
tcx_init_fix(struct fb_info *info, int linebytes)
{
struct tcx_par *par = (struct tcx_par *)info->par;
const char *tcx_name;
if (par->lowdepth)
tcx_name = "TCX8";
else
tcx_name = "TCX24";
strncpy(info->fix.id, tcx_name, sizeof(info->fix.id) - 1);
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_TCX;
}
struct all_info {
struct fb_info info;
struct tcx_par par;
struct list_head list;
};
static LIST_HEAD(tcx_list);
static void tcx_init_one(struct sbus_dev *sdev)
{
struct all_info *all;
int linebytes, i;
all = kmalloc(sizeof(*all), GFP_KERNEL);
if (!all) {
printk(KERN_ERR "tcx: 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.lowdepth = prom_getbool(sdev->prom_node, "tcx-8-bit");
sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
all->info.var.xres);
all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
all->par.tec = (struct tcx_tec *)
sbus_ioremap(&sdev->resource[7], 0,
sizeof(struct tcx_tec), "tcx tec");
all->par.thc = (struct tcx_thc *)
sbus_ioremap(&sdev->resource[9], 0,
sizeof(struct tcx_thc), "tcx thc");
all->par.bt = (struct bt_regs *)
sbus_ioremap(&sdev->resource[8], 0,
sizeof(struct bt_regs), "tcx dac");
memcpy(&all->par.mmap_map, &__tcx_mmap_map, sizeof(all->par.mmap_map));
if (!all->par.lowdepth) {
all->par.cplane = (volatile u32 *)
sbus_ioremap(&sdev->resource[4], 0,
all->par.fbsize * sizeof(u32), "tcx cplane");
} else {
all->par.mmap_map[1].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[4].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[5].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[6].size = SBUS_MMAP_EMPTY;
}
all->par.physbase = 0;
for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
int j;
switch (i) {
case 10:
j = 12;
break;
case 11: case 12:
j = i - 1;
break;
default:
j = i;
break;
};
all->par.mmap_map[i].poff = sdev->reg_addrs[j].phys_addr;
}
all->info.node = NODEV;
all->info.flags = FBINFO_FLAG_DEFAULT;
all->info.fbops = &tcx_ops;
#ifdef CONFIG_SPARC32
all->info.screen_base = (char *)
prom_getintdefault(sdev->prom_node, "address", 0);
#endif
if (!all->info.screen_base)
all->info.screen_base = (char *)
sbus_ioremap(&sdev->resource[0], 0,
all->par.fbsize, "tcx ram");
all->info.currcon = -1;
all->info.par = &all->par;
/* Initialize brooktree DAC. */
sbus_writel(0x04 << 24, &all->par.bt->addr); /* color planes */
sbus_writel(0xff << 24, &all->par.bt->control);
sbus_writel(0x05 << 24, &all->par.bt->addr);
sbus_writel(0x00 << 24, &all->par.bt->control);
sbus_writel(0x06 << 24, &all->par.bt->addr); /* overlay plane */
sbus_writel(0x73 << 24, &all->par.bt->control);
sbus_writel(0x07 << 24, &all->par.bt->addr);
sbus_writel(0x00 << 24, &all->par.bt->control);
tcx_reset(&all->info);
tcx_blank(0, &all->info);
if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
printk(KERN_ERR "tcx: Could not allocate color map.\n");
kfree(all);
return;
}
tcx_set_par(&all->info);
tcx_init_fix(&all->info, linebytes);
if (register_framebuffer(&all->info) < 0) {
printk(KERN_ERR "tcx: Could not register framebuffer.\n");
fb_dealloc_cmap(&all->info.cmap);
kfree(all);
return;
}
list_add(&all->list, &tcx_list);
printk("tcx: %s at %lx:%lx, %s\n",
sdev->prom_name,
(long) sdev->reg_addrs[0].which_io,
(long) sdev->reg_addrs[0].phys_addr,
all->par.lowdepth ? "8-bit only" : "24-bit depth");
}
int __init tcx_init(void)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
for_all_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, "tcx"))
tcx_init_one(sdev);
}
return 0;
}
void __exit tcx_exit(void)
{
struct list_head *pos, *tmp;
list_for_each_safe(pos, tmp, &tcx_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
tcx_setup(char *arg)
{
/* No cmdline options yet... */
return 0;
}
#ifdef MODULE
module_init(tcx_init);
module_exit(tcx_exit);
#endif
MODULE_DESCRIPTION("framebuffer driver for TCX chipsets");
MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
MODULE_LICENSE("GPL");
drivers/video/tcxfb.c deleted 100644 → 0
View file @ 7e2fb365
/* $Id: tcxfb.c,v 1.13 2001/09/19 00:04:33 davem Exp $
* tcxfb.c: TCX 24/8bit frame buffer driver
*
* 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)
*/
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/selection.h>
#include <video/sbusfb.h>
#include <asm/io.h>
#include <asm/sbus.h>
#include <video/fbcon-cfb8.h>
/* THC definitions */
#define TCX_THC_MISC_REV_SHIFT 16
#define TCX_THC_MISC_REV_MASK 15
#define TCX_THC_MISC_VSYNC_DIS (1 << 25)
#define TCX_THC_MISC_HSYNC_DIS (1 << 24)
#define TCX_THC_MISC_RESET (1 << 12)
#define TCX_THC_MISC_VIDEO (1 << 10)
#define TCX_THC_MISC_SYNC (1 << 9)
#define TCX_THC_MISC_VSYNC (1 << 8)
#define TCX_THC_MISC_SYNC_ENAB (1 << 7)
#define TCX_THC_MISC_CURS_RES (1 << 6)
#define TCX_THC_MISC_INT_ENAB (1 << 5)
#define TCX_THC_MISC_INT (1 << 4)
#define TCX_THC_MISC_INIT 0x9f
#define TCX_THC_REV_REV_SHIFT 20
#define TCX_THC_REV_REV_MASK 15
#define TCX_THC_REV_MINREV_SHIFT 28
#define TCX_THC_REV_MINREV_MASK 15
/* The contents are unknown */
struct tcx_tec {
volatile u32 tec_matrix;
volatile u32 tec_clip;
volatile u32 tec_vdc;
};
struct tcx_thc {
volatile u32 thc_rev;
u32 thc_pad0[511];
volatile u32 thc_hs; /* hsync timing */
volatile u32 thc_hsdvs;
volatile u32 thc_hd;
volatile u32 thc_vs; /* vsync timing */
volatile u32 thc_vd;
volatile u32 thc_refresh;
volatile u32 thc_misc;
u32 thc_pad1[56];
volatile u32 thc_cursxy; /* cursor x,y position (16 bits each) */
volatile u32 thc_cursmask[32]; /* cursor mask bits */
volatile u32 thc_cursbits[32]; /* what to show where mask enabled */
};
static struct sbus_mmap_map tcx_mmap_map[] = {
{ TCX_RAM8BIT, 0, SBUS_MMAP_FBSIZE(1) },
{ TCX_RAM24BIT, 0, SBUS_MMAP_FBSIZE(4) },
{ TCX_UNK3, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_UNK4, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_CONTROLPLANE, 0, SBUS_MMAP_FBSIZE(4) },
{ TCX_UNK6, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_UNK7, 0, SBUS_MMAP_FBSIZE(8) },
{ TCX_TEC, 0, PAGE_SIZE },
{ TCX_BTREGS, 0, PAGE_SIZE },
{ TCX_THC, 0, PAGE_SIZE },
{ TCX_DHC, 0, PAGE_SIZE },
{ TCX_ALT, 0, PAGE_SIZE },
{ TCX_UNK2, 0, 0x20000 },
{ 0, 0, 0 }
};
static void __tcx_set_control_plane (struct fb_info_sbusfb *fb)
{
u32 *p, *pend;
p = fb->s.tcx.cplane;
if (p == NULL)
return;
for (pend = p + fb->type.fb_size; p < pend; p++) {
u32 tmp = sbus_readl(p);
tmp &= 0xffffff;
sbus_writel(tmp, p);
}
}
static void tcx_switch_from_graph (struct fb_info_sbusfb *fb)
{
unsigned long flags;
spin_lock_irqsave(&fb->lock, flags);
/* Reset control plane to 8bit mode if necessary */
if (fb->open && fb->mmaped)
__tcx_set_control_plane (fb);
spin_unlock_irqrestore(&fb->lock, flags);
}
static void tcx_loadcmap (struct fb_info_sbusfb *fb, struct display *p, int index, int count)
{
struct bt_regs *bt = fb->s.tcx.bt;
unsigned long flags;
int i;
spin_lock_irqsave(&fb->lock, flags);
sbus_writel(index << 24, &bt->addr);
for (i = index; count--; i++){
sbus_writel(fb->color_map CM(i,0) << 24, &bt->color_map);
sbus_writel(fb->color_map CM(i,1) << 24, &bt->color_map);
sbus_writel(fb->color_map CM(i,2) << 24, &bt->color_map);
}
sbus_writel(0, &bt->addr);
spin_unlock_irqrestore(&fb->lock, flags);
}
static void tcx_restore_palette (struct fb_info_sbusfb *fb)
{
struct bt_regs *bt = fb->s.tcx.bt;
unsigned long flags;
spin_lock_irqsave(&fb->lock, flags);
sbus_writel(0, &bt->addr);
sbus_writel(0xffffffff, &bt->color_map);
sbus_writel(0xffffffff, &bt->color_map);
sbus_writel(0xffffffff, &bt->color_map);
spin_unlock_irqrestore(&fb->lock, flags);
}
static void tcx_setcursormap (struct fb_info_sbusfb *fb, u8 *red, u8 *green, u8 *blue)
{
struct bt_regs *bt = fb->s.tcx.bt;
unsigned long flags;
spin_lock_irqsave(&fb->lock, flags);
/* Note the 2 << 24 is different from cg6's 1 << 24 */
sbus_writel(2 << 24, &bt->addr);
sbus_writel(red[0] << 24, &bt->cursor);
sbus_writel(green[0] << 24, &bt->cursor);
sbus_writel(blue[0] << 24, &bt->cursor);
sbus_writel(3 << 24, &bt->addr);
sbus_writel(red[1] << 24, &bt->cursor);
sbus_writel(green[1] << 24, &bt->cursor);
sbus_writel(blue[1] << 24, &bt->cursor);
sbus_writel(0, &bt->addr);
spin_unlock_irqrestore(&fb->lock, flags);
}
/* Set cursor shape */
static void tcx_setcurshape (struct fb_info_sbusfb *fb)
{
struct tcx_thc *thc = fb->s.tcx.thc;
unsigned long flags;
int i;
spin_lock_irqsave(&fb->lock, flags);
for (i = 0; i < 32; i++){
sbus_writel(fb->cursor.bits[0][i], &thc->thc_cursmask[i]);
sbus_writel(fb->cursor.bits[1][i], &thc->thc_cursbits[i]);
}
spin_unlock_irqrestore(&fb->lock, flags);
}
/* Load cursor information */
static void tcx_setcursor (struct fb_info_sbusfb *fb)
{
struct cg_cursor *c = &fb->cursor;
unsigned long flags;
unsigned int v;
spin_lock_irqsave(&fb->lock, flags);
if (c->enable)
v = ((c->cpos.fbx - c->chot.fbx) << 16)
|((c->cpos.fby - c->chot.fby) & 0xffff);
else
/* Magic constant to turn off the cursor */
v = ((65536-32) << 16) | (65536-32);
sbus_writel(v, &fb->s.tcx.thc->thc_cursxy);
spin_unlock_irqrestore(&fb->lock, flags);
}
static int tcx_blank (struct fb_info_sbusfb *fb)
{
unsigned long flags;
u32 tmp;
spin_lock_irqsave(&fb->lock, flags);
tmp = sbus_readl(&fb->s.tcx.thc->thc_misc);
tmp &= ~TCX_THC_MISC_VIDEO;
/* This should put us in power-save */
tmp |= TCX_THC_MISC_VSYNC_DIS;
tmp |= TCX_THC_MISC_HSYNC_DIS;
sbus_writel(tmp, &fb->s.tcx.thc->thc_misc);
spin_unlock_irqrestore(&fb->lock, flags);
return 0;
}
static int tcx_unblank (struct fb_info_sbusfb *fb)
{
unsigned long flags;
u32 tmp;
spin_lock_irqsave(&fb->lock, flags);
tmp = sbus_readl(&fb->s.tcx.thc->thc_misc);
tmp &= ~TCX_THC_MISC_VSYNC_DIS;
tmp &= ~TCX_THC_MISC_HSYNC_DIS;
tmp |= TCX_THC_MISC_VIDEO;
sbus_writel(tmp, &fb->s.tcx.thc->thc_misc);
spin_unlock_irqrestore(&fb->lock, flags);
return 0;
}
static void tcx_reset (struct fb_info_sbusfb *fb)
{
unsigned long flags;
u32 tmp;
spin_lock_irqsave(&fb->lock, flags);
if (fb->open && fb->mmaped)
__tcx_set_control_plane(fb);
/* Turn off stuff in the Transform Engine. */
sbus_writel(0, &fb->s.tcx.tec->tec_matrix);
sbus_writel(0, &fb->s.tcx.tec->tec_clip);
sbus_writel(0, &fb->s.tcx.tec->tec_vdc);
/* Enable cursor in Brooktree DAC. */
sbus_writel(0x06 << 24, &fb->s.tcx.bt->addr);
tmp = sbus_readl(&fb->s.tcx.bt->control);
tmp |= 0x03 << 24;
sbus_writel(tmp, &fb->s.tcx.bt->control);
spin_unlock_irqrestore(&fb->lock, flags);
}
static void tcx_margins (struct fb_info_sbusfb *fb, struct display *p, int x_margin, int y_margin)
{
fb->info.screen_base += (y_margin - fb->y_margin) * p->fb_info->fix.line_length + (x_margin - fb->x_margin);
}
static char idstring[60] __initdata = { 0 };
char __init *tcxfb_init(struct fb_info_sbusfb *fb)
{
struct fb_fix_screeninfo *fix = &fb->info.fix;
struct display *disp = &fb->disp;
struct fbtype *type = &fb->type;
struct sbus_dev *sdev = fb->sbdp;
unsigned long phys = sdev->reg_addrs[0].phys_addr;
int lowdepth, i, j;
#ifndef FBCON_HAS_CFB8
return NULL;
#endif
lowdepth = prom_getbool (fb->prom_node, "tcx-8-bit");
if (lowdepth) {
strcpy(fb->info.modename, "TCX8");
strcpy(fix->id, "TCX8");
} else {
strcpy(fb->info.modename, "TCX24");
strcpy(fix->id, "TCX24");
}
fix->line_length = fb->info.var.xres_virtual;
fix->accel = FB_ACCEL_SUN_TCX;
disp->scrollmode = SCROLL_YREDRAW;
if (!fb->info.screen_base) {
fb->info.screen_base = (char *)
sbus_ioremap(&sdev->resource[0], 0,
type->fb_size, "tcx ram");
}
fb->info.screen_base += fix->line_length * fb->y_margin + fb->x_margin;
fb->s.tcx.tec = (struct tcx_tec *)
sbus_ioremap(&sdev->resource[7], 0,
sizeof(struct tcx_tec), "tcx tec");
fb->s.tcx.thc = (struct tcx_thc *)
sbus_ioremap(&sdev->resource[9], 0,
sizeof(struct tcx_thc), "tcx thc");
fb->s.tcx.bt = (struct bt_regs *)
sbus_ioremap(&sdev->resource[8], 0,
sizeof(struct bt_regs), "tcx dac");
if (!lowdepth) {
fb->s.tcx.cplane = (u32 *)
sbus_ioremap(&sdev->resource[4], 0,
type->fb_size * sizeof(u32), "tcx cplane");
type->fb_depth = 24;
fb->switch_from_graph = tcx_switch_from_graph;
} else {
/* As there can be one tcx in a machine only, we can write directly into
tcx_mmap_map */
tcx_mmap_map[1].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[4].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[5].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[6].size = SBUS_MMAP_EMPTY;
}
fb->dispsw = fbcon_cfb8;
fb->margins = tcx_margins;
fb->loadcmap = tcx_loadcmap;
if (prom_getbool (fb->prom_node, "hw-cursor")) {
fb->setcursor = tcx_setcursor;
fb->setcursormap = tcx_setcursormap;
fb->setcurshape = tcx_setcurshape;
}
fb->restore_palette = tcx_restore_palette;
fb->blank = tcx_blank;
fb->unblank = tcx_unblank;
fb->reset = tcx_reset;
fb->physbase = 0;
for (i = 0; i < 13; i++) {
/* tcx_mmap_map has to be sorted by voff, while
order of phys registers from PROM differs a little
bit. Here is the correction */
switch (i) {
case 10: j = 12; break;
case 11:
case 12: j = i - 1; break;
default: j = i; break;
}
tcx_mmap_map[i].poff = fb->sbdp->reg_addrs[j].phys_addr;
}
fb->mmap_map = tcx_mmap_map;
/* Initialize Brooktree DAC */
sbus_writel(0x04 << 24, &fb->s.tcx.bt->addr); /* color planes */
sbus_writel(0xff << 24, &fb->s.tcx.bt->control);
sbus_writel(0x05 << 24, &fb->s.tcx.bt->addr);
sbus_writel(0x00 << 24, &fb->s.tcx.bt->control);
sbus_writel(0x06 << 24, &fb->s.tcx.bt->addr); /* overlay plane */
sbus_writel(0x73 << 24, &fb->s.tcx.bt->control);
sbus_writel(0x07 << 24, &fb->s.tcx.bt->addr);
sbus_writel(0x00 << 24, &fb->s.tcx.bt->control);
sprintf(idstring, "tcx at %x.%08lx Rev %d.%d %s",
fb->iospace, phys,
((sbus_readl(&fb->s.tcx.thc->thc_rev) >> TCX_THC_REV_REV_SHIFT) &
TCX_THC_REV_REV_MASK),
((sbus_readl(&fb->s.tcx.thc->thc_rev) >> TCX_THC_REV_MINREV_SHIFT) &
TCX_THC_REV_MINREV_MASK),
lowdepth ? "8-bit only" : "24-bit depth");
tcx_reset(fb);
return idstring;
}
MODULE_LICENSE("GPL");
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