diff options
author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2007-10-16 08:28:48 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 16:43:15 (GMT) |
commit | 90b0f08536531abbbe7b5d4944792da08cadde01 (patch) | |
tree | c6379621f90d4a9b1d01df3060c00d196549ca95 /drivers | |
parent | 4f05b53b28cc7a2b868bc13d19d88cd858e759b6 (diff) | |
download | linux-fsl-qoriq-90b0f08536531abbbe7b5d4944792da08cadde01.tar.xz |
tdfxfb: hardware cursor
This patch adds hardware cursor support to the tdfxfb driver.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/video/tdfxfb.c | 169 |
1 files changed, 74 insertions, 95 deletions
diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c index 7d0c50e..c5ba647 100644 --- a/drivers/video/tdfxfb.c +++ b/drivers/video/tdfxfb.c @@ -67,7 +67,6 @@ #include <linux/init.h> #include <linux/pci.h> #include <asm/io.h> -#include <linux/timer.h> #include <linux/spinlock.h> #include <video/tdfx.h> @@ -148,8 +147,9 @@ MODULE_DEVICE_TABLE(pci, tdfxfb_id_table); /* * Driver data */ -static int nopan = 0; -static int nowrap = 1; // not implemented (yet) +static int nopan; +static int nowrap = 1; /* not implemented (yet) */ +static int hwcursor = 1; static char *mode_option __devinitdata = NULL; /* ------------------------------------------------------------------------- @@ -378,7 +378,7 @@ static void do_write_regs(struct fb_info *info, struct banshee_reg *reg) tdfx_outl(par, VGAINIT0, reg->vgainit0); tdfx_outl(par, DACMODE, reg->dacmode); tdfx_outl(par, VIDDESKSTRIDE, reg->stride); - tdfx_outl(par, HWCURPATADDR, 0); + tdfx_outl(par, HWCURPATADDR, reg->curspataddr); tdfx_outl(par, VIDSCREENSIZE, reg->screensize); tdfx_outl(par, VIDDESKSTART, reg->startaddr); @@ -453,6 +453,7 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) DPRINTK("xoffset not supported\n"); return -EINVAL; } + var->yoffset = 0; /* Banshee doesn't support interlace, but Voodoo4/5 and probably Voodoo3 do. */ /* no direct information about device id now? use max_pixclock for this... */ @@ -663,6 +664,9 @@ static int tdfxfb_set_par(struct fb_info *info) VGAINIT0_EXTSHIFTOUT; reg.vgainit1 = tdfx_inl(par, VGAINIT1) & 0x1fffff; + if (hwcursor) + reg.curspataddr = info->fix.smem_len; + reg.cursloc = 0; reg.cursc0 = 0; @@ -1012,11 +1016,25 @@ static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image) } #endif /* CONFIG_FB_3DFX_ACCEL */ -#ifdef TDFX_HARDWARE_CURSOR static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) { struct tdfx_par *par = info->par; - unsigned long flags; + u32 vidcfg; + + if (!hwcursor) + return -EINVAL; /* just to force soft_cursor() call */ + + /* Too large of a cursor or wrong bpp :-( */ + if (cursor->image.width > 64 || + cursor->image.height > 64 || + cursor->image.depth > 1) + return -EINVAL; + + vidcfg = tdfx_inl(par, VIDPROCCFG); + if (cursor->enable) + tdfx_outl(par, VIDPROCCFG, vidcfg | VIDCFG_HWCURSOR_ENABLE); + else + tdfx_outl(par, VIDPROCCFG, vidcfg & ~VIDCFG_HWCURSOR_ENABLE); /* * If the cursor is not be changed this means either we want the @@ -1026,69 +1044,34 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) if (!cursor->set) return 0; - /* Too large of a cursor :-( */ - if (cursor->image.width > 64 || cursor->image.height > 64) - return -ENXIO; - - /* - * If we are going to be changing things we should disable - * the cursor first - */ - if (info->cursor.enable) { - spin_lock_irqsave(&par->DAClock, flags); - info->cursor.enable = 0; - del_timer(&(par->hwcursor.timer)); - tdfx_outl(par, VIDPROCCFG, par->hwcursor.disable); - spin_unlock_irqrestore(&par->DAClock, flags); - } - - /* Disable the Cursor */ - if ((cursor->set && FB_CUR_SETCUR) && !cursor->enable) - return 0; - /* fix cursor color - XFree86 forgets to restore it properly */ - if (cursor->set && FB_CUR_SETCMAP) { - struct fb_cmap cmap = cursor->image.cmap; + if (cursor->set & FB_CUR_SETCMAP) { + struct fb_cmap cmap = info->cmap; + u32 bg_idx = cursor->image.bg_color; + u32 fg_idx = cursor->image.fg_color; unsigned long bg_color, fg_color; - 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])); - bg_color = ((cmap.red[cmap.start + 1] << 16) | - (cmap.green[cmap.start + 1] << 8) | - (cmap.blue[cmap.start + 1])); - fb_copy_cmap(&cmap, &info->cursor.image.cmap); - spin_lock_irqsave(&par->DAClock, flags); + fg_color = (((u32)cmap.red[fg_idx] & 0xff00) << 8) | + (((u32)cmap.green[fg_idx] & 0xff00) << 0) | + (((u32)cmap.blue[fg_idx] & 0xff00) >> 8); + bg_color = (((u32)cmap.red[bg_idx] & 0xff00) << 8) | + (((u32)cmap.green[bg_idx] & 0xff00) << 0) | + (((u32)cmap.blue[bg_idx] & 0xff00) >> 8); banshee_make_room(par, 2); tdfx_outl(par, HWCURC0, bg_color); tdfx_outl(par, HWCURC1, fg_color); - spin_unlock_irqrestore(&par->DAClock, flags); } - if (cursor->set && FB_CUR_SETPOS) { - int x, y; + if (cursor->set & FB_CUR_SETPOS) { + int x = cursor->image.dx; + int y = cursor->image.dy - info->var.yoffset; - x = cursor->image.dx; - y = cursor->image.dy; - y -= info->var.yoffset; - info->cursor.image.dx = x; - info->cursor.image.dy = y; x += 63; y += 63; - spin_lock_irqsave(&par->DAClock, flags); banshee_make_room(par, 1); tdfx_outl(par, HWCURLOC, (y << 16) + x); - spin_unlock_irqrestore(&par->DAClock, flags); } - - /* Not supported so we fake it */ - if (cursor->set && FB_CUR_SETHOT) { - info->cursor.hot.x = cursor->hot.x; - info->cursor.hot.y = cursor->hot.y; - } - - if (cursor->set && FB_CUR_SETSHAPE) { + if (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) { /* * Voodoo 3 and above cards use 2 monochrome cursor patterns. * The reason is so the card can fetch 8 words at a time @@ -1096,7 +1079,7 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) * This reduces the number of times for access to draw the * cursor for each screen refresh. * Each pattern is a bitmap of 64 bit wide and 64 bit high - * (total of 8192 bits or 1024 Kbytes). The two patterns are + * (total of 8192 bits or 1024 bytes). The two patterns are * stored in such a way that pattern 0 always resides in the * lower half (least significant 64 bits) of a 128 bit word * and pattern 1 the upper half. If you examine the data of @@ -1107,50 +1090,34 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) * (128 bits) which is the maximum cursor width times two for * the two monochrome patterns. */ - u8 *cursorbase = (u8 *)info->cursor.image.data; - char *bitmap = (char *)cursor->image.data; - char *mask = (char *)cursor->mask; - int i, j, k, h = 0; - - for (i = 0; i < 64; i++) { - if (i < cursor->image.height) { - j = (cursor->image.width + 7) >> 3; - k = 8 - j; - - for (; j > 0; j--) { - /* Pattern 0. Copy the cursor bitmap to it */ - fb_writeb(*bitmap, cursorbase + h); - bitmap++; - /* Pattern 1. Copy the cursor mask to it */ - fb_writeb(*mask, cursorbase + h + 8); - mask++; - h++; - } - for (; k > 0; k--) { - fb_writeb(0, cursorbase + h); - fb_writeb(~0, cursorbase + h + 8); - h++; - } - } else { - fb_writel(0, cursorbase + h); - fb_writel(0, cursorbase + h + 4); - fb_writel(~0, cursorbase + h + 8); - fb_writel(~0, cursorbase + h + 12); - h += 16; + u8 __iomem *cursorbase = info->screen_base + info->fix.smem_len; + u8 *bitmap = (u8 *)cursor->image.data; + u8 *mask = (u8 *)cursor->mask; + int i; + + fb_memset(cursorbase, 0, 1024); + + for (i = 0; i < cursor->image.height; i++) { + int h = 0; + int j = (cursor->image.width + 7) >> 3; + + for (; j > 0; j--) { + u8 data = *mask ^ *bitmap; + if (cursor->rop == ROP_COPY) + data = *mask & *bitmap; + /* Pattern 0. Copy the cursor mask to it */ + fb_writeb(*mask, cursorbase + h); + mask++; + /* Pattern 1. Copy the cursor bitmap to it */ + fb_writeb(data, cursorbase + h + 8); + bitmap++; + h++; } + cursorbase += 16; } } - /* Turn the cursor on */ - cursor->enable = 1; - info->cursor = *cursor; - mod_timer(&par->hwcursor.timer, jiffies + HZ / 2); - spin_lock_irqsave(&par->DAClock, flags); - banshee_make_room(par, 1); - tdfx_outl(par, VIDPROCCFG, par->hwcursor.enable); - spin_unlock_irqrestore(&par->DAClock, flags); return 0; } -#endif static struct fb_ops tdfxfb_ops = { .owner = THIS_MODULE, @@ -1160,6 +1127,7 @@ static struct fb_ops tdfxfb_ops = { .fb_blank = tdfxfb_blank, .fb_pan_display = tdfxfb_pan_display, .fb_sync = banshee_wait_idle, + .fb_cursor = tdfxfb_cursor, #ifdef CONFIG_FB_3DFX_ACCEL .fb_fillrect = tdfxfb_fillrect, .fb_copyarea = tdfxfb_copyarea, @@ -1272,6 +1240,11 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, FBINFO_HWACCEL_IMAGEBLIT | FBINFO_READS_FAST; #endif + /* reserve 8192 bits for cursor */ + /* the 2.4 driver says PAGE_MASK boundary is not enough for Voodoo4 */ + if (hwcursor) + info->fix.smem_len = (info->fix.smem_len - 1024) & + (PAGE_MASK << 1); if (!mode_option) mode_option = "640x480@60"; @@ -1336,6 +1309,8 @@ static void tdfxfb_setup(char *options) nopan = 1; } else if (!strcmp(this_opt, "nowrap")) { nowrap = 1; + } else if (!strcmp(this_opt, "hwcursor")) { + hwcursor = simple_strtoul(opt + 9, NULL, 0); } else { mode_option = this_opt; } @@ -1394,5 +1369,9 @@ MODULE_AUTHOR("Hannu Mallat <hmallat@cc.hut.fi>"); MODULE_DESCRIPTION("3Dfx framebuffer device driver"); MODULE_LICENSE("GPL"); +module_param(hwcursor, int, 0644); +MODULE_PARM_DESC(hwcursor, "Enable hardware cursor " + "(1=enable, 0=disable, default=1)"); + module_init(tdfxfb_init); module_exit(tdfxfb_exit); |