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/*
* valkyriefb.c -- frame buffer device for the PowerMac 'valkyrie' display
*
* Created 8 August 1998 by
* Martin Costabel <costabel@wanadoo.fr> and Kevin Schoedel
*
* Vmode-switching changes and vmode 15/17 modifications created 29 August
* 1998 by Barry K. Nathan <barryn@pobox.com>.
*
* Ported to m68k Macintosh by David Huggins-Daines <dhd@debian.org>
*
* Derived directly from:
*
* controlfb.c -- frame buffer device for the PowerMac 'control' display
* Copyright (C) 1998 Dan Jacobowitz <dan@debian.org>
*
* pmc-valkyrie.c -- Console support for PowerMac "valkyrie" display adaptor.
* Copyright (C) 1997 Paul Mackerras.
*
* and indirectly:
*
* Frame buffer structure from:
* drivers/video/chipsfb.c -- frame buffer device for
* Chips & Technologies 65550 chip.
*
* Copyright (C) 1998 Paul Mackerras
*
* This file is derived from the Powermac "chips" driver:
* Copyright (C) 1997 Fabio Riccardi.
* And from the frame buffer device for Open Firmware-initialized devices:
* Copyright (C) 1997 Geert Uytterhoeven.
*
* Hardware information from:
* control.c: Console support for PowerMac "control" display adaptor.
* Copyright (C) 1996 Paul Mackerras
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/config.h>
#include <linux/module.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/selection.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/nvram.h>
#ifdef CONFIG_FB_COMPAT_XPMAC
#include <asm/vc_ioctl.h>
#endif
#include <linux/adb.h>
#include <linux/cuda.h>
#include <asm/io.h>
#ifdef CONFIG_MAC
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
#else
#include <asm/prom.h>
#endif
#include <asm/pgtable.h>
#include <video/fbcon.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include <video/macmodes.h>
#include "valkyriefb.h"
static int can_soft_blank = 1;
#ifdef CONFIG_MAC
/* We don't yet have functions to read the PRAM... perhaps we can
adapt them from the PPC code? */
static int default_vmode = VMODE_640_480_67;
static int default_cmode = CMODE_8;
#else
static int default_vmode = VMODE_NVRAM;
static int default_cmode = CMODE_NVRAM;
#endif
static char fontname[40] __initdata = { 0 };
static int currcon = 0;
static int switching = 0;
struct fb_par_valkyrie {
int vmode, cmode;
int xres, yres;
int vxres, vyres;
int xoffset, yoffset;
};
struct fb_info_valkyrie {
struct fb_info info;
struct fb_fix_screeninfo fix;
struct fb_var_screeninfo var;
struct display disp;
struct fb_par_valkyrie par;
struct {
__u8 red, green, blue;
} palette[256];
struct cmap_regs *cmap_regs;
unsigned long cmap_regs_phys;
struct valkyrie_regs *valkyrie_regs;
unsigned long valkyrie_regs_phys;
__u8 *frame_buffer;
unsigned long frame_buffer_phys;
int sense;
unsigned long total_vram;
#ifdef FBCON_HAS_CFB16
u16 fbcon_cfb16_cmap[16];
#endif
};
/*
* Exported functions
*/
int valkyriefb_init(void);
int valkyriefb_setup(char*);
static int valkyrie_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
static int valkyrie_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int valkyrie_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int valkyrie_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
static int valkyrie_set_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
static int read_valkyrie_sense(struct fb_info_valkyrie *p);
static inline int valkyrie_vram_reqd(int video_mode, int color_mode);
static void set_valkyrie_clock(unsigned char *params);
static void valkyrie_set_par(const struct fb_par_valkyrie *p, struct fb_info_valkyrie *info);
static inline int valkyrie_par_to_var(struct fb_par_valkyrie *par, struct fb_var_screeninfo *var);
static int valkyrie_var_to_par(struct fb_var_screeninfo *var,
struct fb_par_valkyrie *par, const struct fb_info *fb_info);
static void valkyrie_init_info(struct fb_info *info, struct fb_info_valkyrie *p);
static void valkyrie_par_to_display(struct fb_par_valkyrie *par,
struct display *disp, struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p);
static void valkyrie_init_display(struct display *disp);
static void valkyrie_par_to_fix(struct fb_par_valkyrie *par, struct fb_fix_screeninfo *fix,
struct fb_info_valkyrie *p);
static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p);
static struct fb_ops valkyriefb_ops = {
owner: THIS_MODULE,
fb_get_fix: valkyrie_get_fix,
fb_get_var: valkyrie_get_var,
fb_set_var: valkyrie_set_var,
fb_get_cmap: valkyrie_get_cmap,
fb_set_cmap: valkyrie_set_cmap,
};
static int valkyriefb_getcolreg(u_int regno, u_int *red, u_int *green,
u_int *blue, u_int *transp, struct fb_info *info);
static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info);
static void do_install_cmap(int con, struct fb_info *info);
static int valkyrie_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info)
{
struct fb_info_valkyrie *cp = (struct fb_info_valkyrie *) info;
*fix = cp->fix;
return 0;
}
static int valkyrie_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
{
struct fb_info_valkyrie *cp = (struct fb_info_valkyrie *) info;
*var = cp->var;
return 0;
}
/* Sets everything according to var */
static int valkyrie_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
{
struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info;
struct display *disp;
struct fb_par_valkyrie par;
int depthchange, err;
disp = (con >= 0) ? &fb_display[con] : &p->disp;
if ((err = valkyrie_var_to_par(var, &par, info))) {
/* printk (KERN_ERR "Error in valkyrie_set_var, calling valkyrie_var_to_par: %d.\n", err); */
return err;
}
if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_NOW) {
/* printk(KERN_ERR "Not activating, in valkyrie_set_var.\n"); */
valkyrie_par_to_var(&par, var);
return 0;
}
/*
* I know, we want to use fb_display[con], but grab certain info
* from p->var instead.
*/
#define DIRTY(x) (p->var.x != var->x)
depthchange = DIRTY(bits_per_pixel);
/* adding "&& !DIRTY(pixclock)" corrects vmode-switching problems */
if(!DIRTY(xres) && !DIRTY(yres) && !DIRTY(xres_virtual) &&
!DIRTY(yres_virtual) && !DIRTY(bits_per_pixel) && !DIRTY(pixclock)) {
valkyrie_par_to_var(&par, var);
p->var = disp->var = *var;
return 0;
}
p->par = par;
valkyrie_par_to_var(&par, var);
p->var = *var;
valkyrie_par_to_fix(&par, &p->fix, p);
valkyrie_par_to_display(&par, disp, &p->fix, p);
p->disp = *disp;
if (info->changevar && !switching) {
/* Don't want to do this if just switching consoles. */
(*info->changevar)(con);
}
if (con == currcon)
valkyrie_set_par(&par, p);
if (depthchange)
if ((err = fb_alloc_cmap(&disp->cmap, 0, 0)))
return err;
if (depthchange || switching)
do_install_cmap(con, info);
return 0;
}
static int valkyrie_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info)
{
if (con == currcon) {
/* current console? */
return fb_get_cmap(cmap, kspc, valkyriefb_getcolreg, info);
}
if (fb_display[con].cmap.len) { /* non default colormap? */
fb_copy_cmap(&fb_display[con].cmap, cmap, kspc? 0: 2);
}
else {
int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
fb_copy_cmap(fb_default_cmap(size), cmap, kspc ? 0 : 2);
}
return 0;
}
static int valkyrie_set_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info)
{
struct display *disp = &fb_display[con];
int err;
if (disp->cmap.len == 0) {
int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
err = fb_alloc_cmap(&disp->cmap, size, 0);
if (err) {
return err;
}
}
if (con == currcon) {
return fb_set_cmap(cmap, kspc, valkyriefb_setcolreg, info);
}
fb_copy_cmap(cmap, &disp->cmap, kspc ? 0 : 1);
return 0;
}
static int valkyriefb_switch(int con, struct fb_info *fb)
{
struct fb_info_valkyrie *info = (struct fb_info_valkyrie *) fb;
struct fb_par_valkyrie par;
if (fb_display[currcon].cmap.len)
fb_get_cmap(&fb_display[currcon].cmap, 1, valkyriefb_getcolreg,
fb);
currcon = con;
#if 1
valkyrie_var_to_par(&fb_display[currcon].var, &par, fb);
valkyrie_set_par(&par, info);
do_install_cmap(con, fb);
#else
/* I see no reason not to do this. Minus info->changevar(). */
/* DOH. This makes valkyrie_set_var compare, you guessed it, */
/* fb_display[con].var (first param), and fb_display[con].var! */
/* Perhaps I just fixed that... */
switching = 1;
valkyrie_set_var(&fb_display[con].var, con, info);
switching = 0;
#endif
return 0;
}
static int valkyriefb_updatevar(int con, struct fb_info *info)
{
return 0;
}
static void valkyriefb_blank(int blank_mode, struct fb_info *info)
{
/*
* Blank the screen if blank_mode != 0, else unblank. If blank_mode == NULL
* then the caller blanks by setting the CLUT (Color Look Up Table) to all
* black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due
* to e.g. a video mode which doesn't support it. Implements VESA suspend
* and powerdown modes on hardware that supports disabling hsync/vsync:
* blank_mode == 2: suspend vsync
* blank_mode == 3: suspend hsync
* blank_mode == 4: powerdown
*/
struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info;
struct valkyrie_regvals *init;
unsigned char vmode;
if (p->disp.can_soft_blank
&& ((vmode = p->par.vmode) > 0)
&& (vmode <= VMODE_MAX)
&& ((init = valkyrie_reg_init[vmode - 1]) != NULL)) {
if (blank_mode)
--blank_mode;
switch (blank_mode) {
default: /* unblank */
out_8(&p->valkyrie_regs->mode.r, init->mode);
break;
case VESA_VSYNC_SUSPEND:
case VESA_HSYNC_SUSPEND:
/*
* [kps] Value extracted from MacOS. I don't know
* whether this bit disables hsync or vsync, or
* whether the hardware can do the other as well.
*/
out_8(&p->valkyrie_regs->mode.r, init->mode | 0x40);
break;
case VESA_POWERDOWN:
out_8(&p->valkyrie_regs->mode.r, 0x66);
break;
}
}
}
static int valkyriefb_getcolreg(u_int regno, u_int *red, u_int *green,
u_int *blue, u_int *transp, struct fb_info *info)
{
struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info;
if (regno > 255)
return 1;
*red = (p->palette[regno].red<<8) | p->palette[regno].red;
*green = (p->palette[regno].green<<8) | p->palette[regno].green;
*blue = (p->palette[regno].blue<<8) | p->palette[regno].blue;
return 0;
}
static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) info;
volatile struct cmap_regs *cmap_regs = p->cmap_regs;
if (regno > 255)
return 1;
red >>= 8;
green >>= 8;
blue >>= 8;
p->palette[regno].red = red;
p->palette[regno].green = green;
p->palette[regno].blue = blue;
/* tell clut which address to fill */
out_8(&p->cmap_regs->addr, regno);
udelay(1);
/* send one color channel at a time */
out_8(&cmap_regs->lut, red);
out_8(&cmap_regs->lut, green);
out_8(&cmap_regs->lut, blue);
if (regno < 16) {
#ifdef FBCON_HAS_CFB16
p->fbcon_cfb16_cmap[regno] = (regno << 10) | (regno << 5) | regno;
#endif
}
return 0;
}
static void do_install_cmap(int con, struct fb_info *info)
{
if (con != currcon)
return;
if (fb_display[con].cmap.len) {
fb_set_cmap(&fb_display[con].cmap, 1, valkyriefb_setcolreg,
info);
}
else {
int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
fb_set_cmap(fb_default_cmap(size), 1, valkyriefb_setcolreg,
info);
}
}
#ifdef CONFIG_FB_COMPAT_XPMAC
extern struct vc_mode display_info;
extern struct fb_info *console_fb_info;
#endif /* CONFIG_FB_COMPAT_XPMAC */
static int valkyrie_vram_reqd(int video_mode, int color_mode)
{
int pitch;
if ((pitch = valkyrie_reg_init[video_mode-1]->pitch[color_mode]) == 0)
pitch = 2 * valkyrie_reg_init[video_mode-1]->pitch[0];
return valkyrie_reg_init[video_mode-1]->vres * pitch;
}
static void set_valkyrie_clock(unsigned char *params)
{
struct adb_request req;
int i;
#ifdef CONFIG_ADB_CUDA
for (i = 0; i < 3; ++i) {
cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
0x50, i + 1, params[i]);
while (!req.complete)
cuda_poll();
}
#endif
}
static void __init init_valkyrie(struct fb_info_valkyrie *p)
{
struct fb_par_valkyrie *par = &p->par;
struct fb_var_screeninfo var;
int j, k;
p->sense = read_valkyrie_sense(p);
printk(KERN_INFO "Monitor sense value = 0x%x, ", p->sense);
#ifdef CONFIG_NVRAM
/* Try to pick a video mode out of NVRAM if we have one. */
if (default_vmode == VMODE_NVRAM) {
default_vmode = nvram_read_byte(NV_VMODE);
if (default_vmode <= 0
|| default_vmode > VMODE_MAX
|| !valkyrie_reg_init[default_vmode - 1])
default_vmode = VMODE_CHOOSE;
}
if (default_cmode == CMODE_NVRAM)
default_cmode = nvram_read_byte(NV_CMODE);
#endif
if (default_vmode == VMODE_CHOOSE)
default_vmode = mac_map_monitor_sense(p->sense);
if (!valkyrie_reg_init[default_vmode - 1])
default_vmode = VMODE_640_480_67;
/*
* Reduce the pixel size if we don't have enough VRAM or bandwitdh.
*/
if (default_cmode < CMODE_8
|| default_cmode > CMODE_16
|| valkyrie_reg_init[default_vmode-1]->pitch[default_cmode] == 0
|| valkyrie_vram_reqd(default_vmode, default_cmode) > p->total_vram)
default_cmode = CMODE_8;
printk(KERN_INFO "using video mode %d and color mode %d.\n", default_vmode, default_cmode);
mac_vmode_to_var(default_vmode, default_cmode, &var);
if (valkyrie_var_to_par(&var, par, &p->info)) {
printk(KERN_ERR "valkyriefb: can't set default video mode\n");
return ;
}
valkyrie_init_fix(&p->fix, p);
valkyrie_par_to_fix(&p->par, &p->fix, p);
valkyrie_par_to_var(&p->par, &p->var);
valkyrie_init_display(&p->disp);
valkyrie_par_to_display(&p->par, &p->disp, &p->fix, p);
valkyrie_init_info(&p->info, p);
/* Initialize colormap */
for (j = 0; j < 16; j++) {
k = color_table[j];
p->palette[j].red = default_red[k];
p->palette[j].green = default_grn[k];
p->palette[j].blue = default_blu[k];
}
valkyrie_set_var (&var, -1, &p->info);
if (register_framebuffer(&p->info) < 0) {
kfree(p);
return;
}
printk(KERN_INFO "fb%d: valkyrie frame buffer device\n", GET_FB_IDX(p->info.node));
}
static void valkyrie_set_par(const struct fb_par_valkyrie *par,
struct fb_info_valkyrie *p)
{
struct valkyrie_regvals *init;
volatile struct valkyrie_regs *valkyrie_regs = p->valkyrie_regs;
int vmode, cmode;
vmode = par->vmode;
cmode = par->cmode;
if (vmode <= 0
|| vmode > VMODE_MAX
|| (init = valkyrie_reg_init[vmode - 1]) == NULL)
panic("valkyrie: display mode %d not supported", vmode);
/* Reset the valkyrie */
out_8(&valkyrie_regs->status.r, 0);
udelay(100);
/* Initialize display timing registers */
out_8(&valkyrie_regs->mode.r, init->mode | 0x80);
out_8(&valkyrie_regs->depth.r, cmode + 3);
set_valkyrie_clock(init->clock_params);
udelay(100);
/* Turn on display */
out_8(&valkyrie_regs->mode.r, init->mode);
#ifdef CONFIG_FB_COMPAT_XPMAC
/* And let the world know the truth. */
if (!console_fb_info || console_fb_info == &p->info) {
display_info.height = p->var.yres;
display_info.width = p->var.xres;
display_info.depth = (cmode == CMODE_16) ? 16 : 8;
display_info.pitch = p->fix.line_length;
display_info.mode = vmode;
strncpy(display_info.name, "valkyrie",
sizeof(display_info.name));
display_info.fb_address = p->frame_buffer_phys + 0x1000;
display_info.cmap_adr_address = p->cmap_regs_phys;
display_info.cmap_data_address = p->cmap_regs_phys + 8;
display_info.disp_reg_address = p->valkyrie_regs_phys;
console_fb_info = &p->info;
}
#endif /* CONFIG_FB_COMPAT_XPMAC */
}
int __init valkyriefb_init(void)
{
struct fb_info_valkyrie *p;
unsigned long frame_buffer_phys, cmap_regs_phys, flags;
#ifdef CONFIG_MAC
if (!MACH_IS_MAC)
return 0;
if (!(mac_bi_data.id == MAC_MODEL_Q630
/* I'm not sure about this one */
|| mac_bi_data.id == MAC_MODEL_P588))
return 0;
/* Hardcoded addresses... welcome to 68k Macintosh country :-) */
frame_buffer_phys = 0xf9000000;
cmap_regs_phys = 0x50f24000;
flags = IOMAP_NOCACHE_SER; /* IOMAP_WRITETHROUGH?? */
#else /* ppc (!CONFIG_MAC) */
struct device_node *dp;
dp = find_devices("valkyrie");
if (dp == 0)
return 0;
if(dp->n_addrs != 1) {
printk(KERN_ERR "expecting 1 address for valkyrie (got %d)", dp->n_addrs);
return 0;
}
frame_buffer_phys = dp->addrs[0].address;
cmap_regs_phys = dp->addrs[0].address+0x304000;
flags = _PAGE_WRITETHRU;
#endif /* ppc (!CONFIG_MAC) */
p = kmalloc(sizeof(*p), GFP_ATOMIC);
if (p == 0)
return 0;
memset(p, 0, sizeof(*p));
/* Map in frame buffer and registers */
if (!request_mem_region(frame_buffer_phys, 0x100000, "valkyriefb")) {
kfree(p);
return 0;
}
p->total_vram = 0x100000;
p->frame_buffer_phys = frame_buffer_phys;
p->frame_buffer = __ioremap(frame_buffer_phys, p->total_vram, flags);
p->cmap_regs_phys = cmap_regs_phys;
p->cmap_regs = ioremap(p->cmap_regs_phys, 0x1000);
p->valkyrie_regs_phys = cmap_regs_phys+0x6000;
p->valkyrie_regs = ioremap(p->valkyrie_regs_phys, 0x1000);
init_valkyrie(p);
return 0;
}
/*
* Get the monitor sense value.
*/
static int read_valkyrie_sense(struct fb_info_valkyrie *p)
{
int sense, in;
out_8(&p->valkyrie_regs->msense.r, 0); /* release all lines */
__delay(20000);
sense = ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x70) << 4;
/* drive each sense line low in turn and collect the other 2 */
out_8(&p->valkyrie_regs->msense.r, 4); /* drive A low */
__delay(20000);
sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x30);
out_8(&p->valkyrie_regs->msense.r, 2); /* drive B low */
__delay(20000);
sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x40) >> 3;
sense |= (in & 0x10) >> 2;
out_8(&p->valkyrie_regs->msense.r, 1); /* drive C low */
__delay(20000);
sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x60) >> 5;
out_8(&p->valkyrie_regs->msense.r, 7);
return sense;
}
/*
* This routine takes a user-supplied var,
* and picks the best vmode/cmode from it.
*/
static int valkyrie_var_to_par(struct fb_var_screeninfo *var,
struct fb_par_valkyrie *par, const struct fb_info *fb_info)
/* [bkn] I did a major overhaul of this function.
*
* Much of the old code was "swiped by jonh from atyfb.c". Because
* macmodes has mac_var_to_vmode, I felt that it would be better to
* rework this function to use that, instead of reinventing the wheel to
* add support for vmode 17. This was reinforced by the fact that
* the previously swiped atyfb.c code is no longer there.
*
* So, I swiped and adapted platinum_var_to_par (from platinumfb.c), replacing
* most, but not all, of the old code in the process. One side benefit of
* swiping the platinumfb code is that we now have more comprehensible error
* messages when a vmode/cmode switch fails. (Most of the error messages are
* platinumfb.c, but I added two of my own, and I also changed some commas
* into colons to make the messages more consistent with other Linux error
* messages.) In addition, I think the new code *might* fix some vmode-
* switching oddities, but I'm not sure.
*
* There may be some more opportunities for cleanup in here, but this is a
* good start...
*/
{
int bpp = var->bits_per_pixel;
struct valkyrie_regvals *init;
struct fb_info_valkyrie *p = (struct fb_info_valkyrie *) fb_info;
if(mac_var_to_vmode(var, &par->vmode, &par->cmode) != 0) {
printk(KERN_ERR "valkyrie_var_to_par: %dx%dx%d unsuccessful.\n",var->xres,var->yres,var->bits_per_pixel);
return -EINVAL;
}
/* Check if we know about the wanted video mode */
if(!valkyrie_reg_init[par->vmode-1]) {
printk(KERN_ERR "valkyrie_var_to_par: vmode %d not valid.\n", par->vmode);
return -EINVAL;
}
par->xres = var->xres;
par->yres = var->yres;
par->xoffset = 0;
par->yoffset = 0;
par->vxres = par->xres;
par->vyres = par->yres;
if (var->xres_virtual > var->xres || var->yres_virtual > var->yres
|| var->xoffset != 0 || var->yoffset != 0) {
return -EINVAL;
}
if (bpp <= 8)
par->cmode = CMODE_8;
else if (bpp <= 16)
par->cmode = CMODE_16;
else {
printk(KERN_ERR "valkyrie_var_to_par: cmode %d not supported.\n", par->cmode);
return -EINVAL;
}
init = valkyrie_reg_init[par->vmode-1];
if (init->pitch[par->cmode] == 0) {
printk(KERN_ERR "valkyrie_var_to_par: vmode %d does not support cmode %d.\n", par->vmode, par->cmode);
return -EINVAL;
}
if (valkyrie_vram_reqd(par->vmode, par->cmode) > p->total_vram) {
printk(KERN_ERR "valkyrie_var_to_par: not enough ram for vmode %d, cmode %d.\n", par->vmode, par->cmode);
return -EINVAL;
}
return 0;
}
static int valkyrie_par_to_var(struct fb_par_valkyrie *par, struct fb_var_screeninfo *var)
{
return mac_vmode_to_var(par->vmode, par->cmode, var);
}
static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p)
{
memset(fix, 0, sizeof(*fix));
strcpy(fix->id, "valkyrie");
fix->mmio_start = p->valkyrie_regs_phys;
fix->mmio_len = sizeof(struct valkyrie_regs);
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
fix->ywrapstep = 0;
fix->ypanstep = 0;
fix->xpanstep = 0;
}
/* Fix must already be inited above */
static void valkyrie_par_to_fix(struct fb_par_valkyrie *par,
struct fb_fix_screeninfo *fix,
struct fb_info_valkyrie *p)
{
fix->smem_start = p->frame_buffer_phys + 0x1000;
#if 1
fix->smem_len = valkyrie_vram_reqd(par->vmode, par->cmode);
#else
fix->smem_len = p->total_vram;
#endif
fix->visual = (par->cmode == CMODE_8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
fix->line_length = par->vxres << par->cmode;
/* ywrapstep, xpanstep, ypanstep */
}
static void valkyrie_init_display(struct display *disp)
{
memset(disp, 0, sizeof(*disp));
disp->type = /* fix->type */ FB_TYPE_PACKED_PIXELS;
disp->can_soft_blank = can_soft_blank;
disp->scrollmode = SCROLL_YREDRAW;
}
static void valkyrie_par_to_display(struct fb_par_valkyrie *par,
struct display *disp, struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p)
{
disp->var = p->var;
disp->screen_base = (char *) p->frame_buffer + 0x1000;
disp->visual = fix->visual;
disp->line_length = fix->line_length;
if(disp->scrollmode != SCROLL_YREDRAW) {
printk(KERN_ERR "Scroll mode not YREDRAW in valkyrie_par_to_display\n");
disp->scrollmode = SCROLL_YREDRAW;
}
switch (par->cmode) {
#ifdef FBCON_HAS_CFB8
case CMODE_8:
disp->dispsw = &fbcon_cfb8;
break;
#endif
#ifdef FBCON_HAS_CFB16
case CMODE_16:
disp->dispsw = &fbcon_cfb16;
disp->dispsw_data = p->fbcon_cfb16_cmap;
break;
#endif
default:
disp->dispsw = &fbcon_dummy;
break;
}
}
static void __init valkyrie_init_info(struct fb_info *info, struct fb_info_valkyrie *p)
{
strcpy(info->modename, p->fix.id);
info->node = -1; /* ??? danj */
info->fbops = &valkyriefb_ops;
info->disp = &p->disp;
strcpy(info->fontname, fontname);
info->changevar = NULL;
info->switch_con = &valkyriefb_switch;
info->updatevar = &valkyriefb_updatevar;
info->blank = &valkyriefb_blank;
info->flags = FBINFO_FLAG_DEFAULT;
}
/*
* Parse user speficied options (`video=valkyriefb:')
*/
int __init valkyriefb_setup(char *options)
{
char *this_opt;
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!strncmp(this_opt, "font:", 5)) {
char *p;
int i;
p = this_opt + 5;
for (i = 0; i < sizeof(fontname) - 1; i++)
if (!*p || *p == ' ' || *p == ',')
break;
memcpy(fontname, this_opt + 5, i);
fontname[i] = 0;
}
else if (!strncmp(this_opt, "vmode:", 6)) {
int vmode = simple_strtoul(this_opt+6, NULL, 0);
if (vmode > 0 && vmode <= VMODE_MAX)
default_vmode = vmode;
}
else if (!strncmp(this_opt, "cmode:", 6)) {
int depth = simple_strtoul(this_opt+6, NULL, 0);
switch (depth) {
case 8:
default_cmode = CMODE_8;
break;
case 15:
case 16:
default_cmode = CMODE_16;
break;
}
}
/* XXX - remove these options once blanking has been tested */
else if (!strncmp(this_opt, "noblank", 7)) {
can_soft_blank = 0;
}
else if (!strncmp(this_opt, "blank", 5)) {
can_soft_blank = 1;
}
}
return 0;
}
MODULE_LICENSE("GPL");
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