Commit fa36fdf7 authored by Antonino Daplas's avatar Antonino Daplas Committed by Linus Torvalds

[PATCH] tdfxfb: salvage tdfxfb from James' tree

Took code from James' tree to be hopefully included in the mm tree so it
can receive more testing.
Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 1ff628c5
/*
*
* tdfxfb.c
......@@ -126,8 +125,9 @@ static struct fb_var_screeninfo tdfx_var __initdata = {
/*
* PCI driver prototypes
*/
static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id);
static void tdfxfb_remove(struct pci_dev *pdev);
static int __devinit tdfxfb_probe(struct pci_dev *pdev,
const struct pci_device_id *id);
static void __devexit tdfxfb_remove(struct pci_dev *pdev);
static struct pci_device_id tdfxfb_id_table[] = {
{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE,
......@@ -163,15 +163,13 @@ static int tdfxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info);
static int tdfxfb_blank(int blank, struct fb_info *info);
static int tdfxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
static int banshee_wait_idle(struct fb_info *info);
#ifdef CONFIG_FB_3DFX_ACCEL
static void tdfxfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
static void tdfxfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image);
#ifdef CONFIG_FB_3DFX_ACCEL
static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor);
#else /* !CONFIG_FB_3DFX_ACCEL */
#define tdfxfb_cursor soft_cursor
#endif /* CONFIG_FB_3DFX_ACCEL */
static int banshee_wait_idle(struct fb_info *info);
static struct fb_ops tdfxfb_ops = {
.owner = THIS_MODULE,
......@@ -180,11 +178,18 @@ static struct fb_ops tdfxfb_ops = {
.fb_setcolreg = tdfxfb_setcolreg,
.fb_blank = tdfxfb_blank,
.fb_pan_display = tdfxfb_pan_display,
.fb_sync = banshee_wait_idle,
#ifdef CONFIG_FB_3DFX_ACCEL
.fb_fillrect = tdfxfb_fillrect,
.fb_copyarea = tdfxfb_copyarea,
.fb_imageblit = tdfxfb_imageblit,
.fb_sync = banshee_wait_idle,
.fb_cursor = tdfxfb_cursor,
#else
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_cursor = soft_cursor,
#endif
};
/*
......@@ -512,8 +517,10 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var,struct fb_info *info)
return -EINVAL;
}
/* fixme: does Voodoo3 support interlace? Banshee doesn't */
if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
/* Banshee doesn't support interlace, but Voodoo4/5 and probably Voodoo3 do. */
/* no direct information about device id now? use max_pixclock for this... */
if (((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) &&
(par->max_pixclock < VOODOO3_MAX_PIXCLOCK)) {
DPRINTK("interlace not supported\n");
return -EINVAL;
}
......@@ -584,7 +591,6 @@ static int tdfxfb_set_par(struct fb_info *info)
int fout, freq;
u32 wd, cpp;
info->cmap.len = (info->var.bits_per_pixel == 8) ? 256 : 16;
par->baseline = 0;
memset(&reg, 0, sizeof(reg));
......@@ -620,10 +626,17 @@ static int tdfxfb_set_par(struct fb_info *info)
hbs = hd;
hbe = ht;
vbs = vd = info->var.yres - 1;
vs = vd + info->var.lower_margin;
ve = vs + info->var.vsync_len;
vbe = vt = ve + info->var.upper_margin - 1;
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
vbs = vd = (info->var.yres << 1) - 1;
vs = vd + (info->var.lower_margin << 1);
ve = vs + (info->var.vsync_len << 1);
vbe = vt = ve + (info->var.upper_margin << 1) - 1;
} else {
vbs = vd = info->var.yres - 1;
vs = vd + info->var.lower_margin;
ve = vs + info->var.vsync_len;
vbe = vt = ve + info->var.upper_margin - 1;
}
/* this is all pretty standard VGA register stuffing */
reg.misc[0x00] = 0x0f |
......@@ -746,8 +759,16 @@ static int tdfxfb_set_par(struct fb_info *info)
reg.gfxpll = do_calc_pll(..., &fout);
#endif
reg.screensize = info->var.xres | (info->var.yres << 12);
reg.vidcfg &= ~VIDCFG_HALF_MODE;
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
reg.screensize = info->var.xres | (info->var.yres << 13);
reg.vidcfg |= VIDCFG_HALF_MODE;
reg.crt[0x09] |= 0x80;
} else {
reg.screensize = info->var.xres | (info->var.yres << 12);
reg.vidcfg &= ~VIDCFG_HALF_MODE;
}
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
reg.vidcfg |= VIDCFG_INTERLACE;
reg.miscinit0 = tdfx_inl(par, MISCINIT0);
#if defined(__BIG_ENDIAN)
......@@ -787,7 +808,7 @@ static int tdfxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
struct tdfx_par *par = (struct tdfx_par *) info->par;
u32 rgbcol;
if (regno >= info->cmap.len) return 1;
if (regno >= info->cmap.len || regno > 255) return 1;
switch (info->fix.visual) {
case FB_VISUAL_PSEUDOCOLOR:
......@@ -876,6 +897,7 @@ static int tdfxfb_pan_display(struct fb_var_screeninfo *var,
return 0;
}
#ifdef CONFIG_FB_3DFX_ACCEL
/*
* FillRect 2D command (solidfill or invert (via ROP_XOR))
*/
......@@ -894,7 +916,11 @@ static void tdfxfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect
banshee_make_room(par, 5);
tdfx_outl(par, DSTFORMAT, fmt);
tdfx_outl(par, COLORFORE, rect->color);
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
tdfx_outl(par, COLORFORE, rect->color);
} else { /* FB_VISUAL_TRUECOLOR */
tdfx_outl(par, COLORFORE, ((u32*)(info->pseudo_palette))[rect->color]);
}
tdfx_outl(par, COMMAND_2D, COMMAND_2D_FILLRECT | (tdfx_rop << 24));
tdfx_outl(par, DSTSIZE, rect->width | (rect->height << 16));
tdfx_outl(par, LAUNCH_2D, rect->dx | (rect->dy << 16));
......@@ -1005,7 +1031,6 @@ static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image)
banshee_wait_idle(info);
}
#ifdef CONFIG_FB_3DFX_ACCEL
static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct tdfx_par *par = (struct tdfx_par *) info->par;
......@@ -1043,7 +1068,7 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
struct fb_cmap cmap = cursor->image.cmap;
unsigned long bg_color, fg_color;
cmap.len = 2;/* Voodoo 3+ only support 2 color cursors*/
cmap.len = 2; /* Voodoo 3+ only support 2 color cursors */
fg_color = ((cmap.red[cmap.start] << 16) |
(cmap.green[cmap.start] << 8) |
(cmap.blue[cmap.start]));
......@@ -1101,7 +1126,7 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
*/
u8 *cursorbase = (u8 *) info->cursor.image.data;
char *bitmap = (char *)cursor->image.data;
const char *mask = cursor->mask;
char *mask = (char *) cursor->mask;
int i, j, k, h = 0;
for (i = 0; i < 64; i++) {
......@@ -1165,15 +1190,13 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev,
return err;
}
size = sizeof(struct fb_info)+sizeof(struct tdfx_par)+16*sizeof(u32);
size = sizeof(struct tdfx_par)+256*sizeof(u32);
info = kmalloc(size, GFP_KERNEL);
info = framebuffer_alloc(size, &pdev->dev);
if (!info) return -ENOMEM;
memset(info, 0, size);
default_par = (struct tdfx_par *) (info + 1);
default_par = info->par;
/* Configure the default fb_fix_screeninfo first */
switch (pdev->device) {
......@@ -1251,28 +1274,28 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev,
info->fbops = &tdfxfb_ops;
info->fix = tdfx_fix;
info->par = default_par;
info->pseudo_palette = (void *)(default_par + 1);
info->flags = FBINFO_DEFAULT |
FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_IMAGEBLIT |
FBINFO_HWACCEL_YPAN;
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
#ifdef CONFIG_FB_3DFX_ACCEL
info->flags |= FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_IMAGEBLIT;
#endif
#ifndef MODULE
if (!mode_option)
mode_option = "640x480@60";
err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
if (!err || err == 4)
#endif
info->var = tdfx_var;
size = (info->var.bits_per_pixel == 8) ? 256 : 16;
fb_alloc_cmap(&info->cmap, size, 0);
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
printk(KERN_WARNING "tdfxfb: Can't allocate color map\n");
goto out_err;
}
if (register_framebuffer(info) < 0) {
printk("tdfxfb: can't register framebuffer\n");
fb_dealloc_cmap(&info->cmap);
goto out_err;
}
/*
......@@ -1289,7 +1312,7 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev,
iounmap(default_par->regbase_virt);
if (info->screen_base)
iounmap(info->screen_base);
kfree(info);
framebuffer_release(info);
return -ENXIO;
}
......@@ -1319,7 +1342,7 @@ static void __devexit tdfxfb_remove(struct pci_dev *pdev)
release_mem_region(pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
pci_set_drvdata(pdev, NULL);
kfree(info);
framebuffer_release(info);
}
int __init tdfxfb_init(void)
......
......@@ -114,6 +114,7 @@
#define VGAINIT1_MASK 0x1fffff
#define VIDCFG_VIDPROC_ENABLE BIT(0)
#define VIDCFG_CURS_X11 BIT(1)
#define VIDCFG_INTERLACE BIT(3)
#define VIDCFG_HALF_MODE BIT(4)
#define VIDCFG_DESK_ENABLE BIT(7)
#define VIDCFG_CLUT_BYPASS BIT(10)
......
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