![Krzysztof Helt](/assets/img/avatar_default.png)
This patch correctly restores console state after switching from X. Otherwise, screen is always off after switching from X. 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>
979 lines
26 KiB
C
979 lines
26 KiB
C
/*
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* linux/drivers/video/pm3fb.c -- 3DLabs Permedia3 frame buffer device
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*
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* Copyright (C) 2001 Romain Dolbeau <romain@dolbeau.org>.
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*
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* Ported to 2.6 kernel on 1 May 2007 by Krzysztof Helt <krzysztof.h1@wp.pl>
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* based on pm2fb.c
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*
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* Based on code written by:
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* Sven Luther, <luther@dpt-info.u-strasbg.fr>
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* Alan Hourihane, <alanh@fairlite.demon.co.uk>
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* Russell King, <rmk@arm.linux.org.uk>
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* Based on linux/drivers/video/skeletonfb.c:
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* Copyright (C) 1997 Geert Uytterhoeven
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* Based on linux/driver/video/pm2fb.c:
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* Copyright (C) 1998-1999 Ilario Nardinocchi (nardinoc@CS.UniBO.IT)
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* Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <video/pm3fb.h>
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#if !defined(CONFIG_PCI)
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#error "Only generic PCI cards supported."
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#endif
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#undef PM3FB_MASTER_DEBUG
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#ifdef PM3FB_MASTER_DEBUG
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#define DPRINTK(a,b...) printk(KERN_DEBUG "pm3fb: %s: " a, __FUNCTION__ , ## b)
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#else
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#define DPRINTK(a,b...)
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#endif
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/*
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* Driver data
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*/
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static char *mode_option __devinitdata;
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/*
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* This structure defines the hardware state of the graphics card. Normally
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* you place this in a header file in linux/include/video. This file usually
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* also includes register information. That allows other driver subsystems
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* and userland applications the ability to use the same header file to
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* avoid duplicate work and easy porting of software.
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*/
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struct pm3_par {
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unsigned char __iomem *v_regs;/* virtual address of p_regs */
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u32 video; /* video flags before blanking */
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u32 base; /* screen base (xoffset+yoffset) in 128 bits unit */
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u32 palette[16];
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};
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/*
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* Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo
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* if we don't use modedb. If we do use modedb see pm3fb_init how to use it
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* to get a fb_var_screeninfo. Otherwise define a default var as well.
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*/
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static struct fb_fix_screeninfo pm3fb_fix __devinitdata = {
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.id = "Permedia3",
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.type = FB_TYPE_PACKED_PIXELS,
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.visual = FB_VISUAL_PSEUDOCOLOR,
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.xpanstep = 1,
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.ypanstep = 1,
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.ywrapstep = 0,
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.accel = FB_ACCEL_NONE,
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};
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/*
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* Utility functions
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*/
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static inline u32 PM3_READ_REG(struct pm3_par *par, s32 off)
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{
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return fb_readl(par->v_regs + off);
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}
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static inline void PM3_WRITE_REG(struct pm3_par *par, s32 off, u32 v)
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{
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fb_writel(v, par->v_regs + off);
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}
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static inline void PM3_WAIT(struct pm3_par *par, u32 n)
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{
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while (PM3_READ_REG(par, PM3InFIFOSpace) < n);
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}
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static inline void PM3_WRITE_DAC_REG(struct pm3_par *par, unsigned r, u8 v)
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{
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PM3_WAIT(par, 3);
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PM3_WRITE_REG(par, PM3RD_IndexHigh, (r >> 8) & 0xff);
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PM3_WRITE_REG(par, PM3RD_IndexLow, r & 0xff);
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wmb();
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PM3_WRITE_REG(par, PM3RD_IndexedData, v);
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wmb();
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}
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static inline void pm3fb_set_color(struct pm3_par *par, unsigned char regno,
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unsigned char r, unsigned char g, unsigned char b)
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{
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PM3_WAIT(par, 4);
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PM3_WRITE_REG(par, PM3RD_PaletteWriteAddress, regno);
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wmb();
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PM3_WRITE_REG(par, PM3RD_PaletteData, r);
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wmb();
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PM3_WRITE_REG(par, PM3RD_PaletteData, g);
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wmb();
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PM3_WRITE_REG(par, PM3RD_PaletteData, b);
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wmb();
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}
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static void pm3fb_clear_colormap(struct pm3_par *par,
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unsigned char r, unsigned char g, unsigned char b)
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{
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int i;
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for (i = 0; i < 256 ; i++)
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pm3fb_set_color(par, i, r, g, b);
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}
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/* Calculating various clock parameter */
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static void pm3fb_calculate_clock(unsigned long reqclock,
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unsigned char *prescale,
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unsigned char *feedback,
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unsigned char *postscale)
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{
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int f, pre, post;
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unsigned long freq;
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long freqerr = 1000;
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long currerr;
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for (f = 1; f < 256; f++) {
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for (pre = 1; pre < 256; pre++) {
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for (post = 0; post < 5; post++) {
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freq = ((2*PM3_REF_CLOCK * f) >> post) / pre;
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currerr = (reqclock > freq)
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? reqclock - freq
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: freq - reqclock;
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if (currerr < freqerr) {
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freqerr = currerr;
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*feedback = f;
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*prescale = pre;
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*postscale = post;
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}
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}
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}
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}
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}
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static inline int pm3fb_depth(const struct fb_var_screeninfo *var)
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{
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if ( var->bits_per_pixel == 16 )
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return var->red.length + var->green.length
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+ var->blue.length;
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return var->bits_per_pixel;
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}
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static inline int pm3fb_shift_bpp(unsigned bpp, int v)
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{
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switch (bpp) {
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case 8:
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return (v >> 4);
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case 16:
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return (v >> 3);
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case 32:
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return (v >> 2);
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}
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DPRINTK("Unsupported depth %u\n", bpp);
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return 0;
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}
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/* write the mode to registers */
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static void pm3fb_write_mode(struct fb_info *info)
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{
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struct pm3_par *par = info->par;
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char tempsync = 0x00, tempmisc = 0x00;
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const u32 hsstart = info->var.right_margin;
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const u32 hsend = hsstart + info->var.hsync_len;
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const u32 hbend = hsend + info->var.left_margin;
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const u32 xres = (info->var.xres + 31) & ~31;
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const u32 htotal = xres + hbend;
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const u32 vsstart = info->var.lower_margin;
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const u32 vsend = vsstart + info->var.vsync_len;
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const u32 vbend = vsend + info->var.upper_margin;
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const u32 vtotal = info->var.yres + vbend;
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const u32 width = (info->var.xres_virtual + 7) & ~7;
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const unsigned bpp = info->var.bits_per_pixel;
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PM3_WAIT(par, 20);
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PM3_WRITE_REG(par, PM3MemBypassWriteMask, 0xffffffff);
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PM3_WRITE_REG(par, PM3Aperture0, 0x00000000);
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PM3_WRITE_REG(par, PM3Aperture1, 0x00000000);
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PM3_WRITE_REG(par, PM3FIFODis, 0x00000007);
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PM3_WRITE_REG(par, PM3HTotal,
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pm3fb_shift_bpp(bpp, htotal - 1));
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PM3_WRITE_REG(par, PM3HsEnd,
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pm3fb_shift_bpp(bpp, hsend));
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PM3_WRITE_REG(par, PM3HsStart,
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pm3fb_shift_bpp(bpp, hsstart));
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PM3_WRITE_REG(par, PM3HbEnd,
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pm3fb_shift_bpp(bpp, hbend));
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PM3_WRITE_REG(par, PM3HgEnd,
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pm3fb_shift_bpp(bpp, hbend));
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PM3_WRITE_REG(par, PM3ScreenStride,
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pm3fb_shift_bpp(bpp, width));
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PM3_WRITE_REG(par, PM3VTotal, vtotal - 1);
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PM3_WRITE_REG(par, PM3VsEnd, vsend - 1);
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PM3_WRITE_REG(par, PM3VsStart, vsstart - 1);
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PM3_WRITE_REG(par, PM3VbEnd, vbend);
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switch (bpp) {
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case 8:
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PM3_WRITE_REG(par, PM3ByAperture1Mode,
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PM3ByApertureMode_PIXELSIZE_8BIT);
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PM3_WRITE_REG(par, PM3ByAperture2Mode,
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PM3ByApertureMode_PIXELSIZE_8BIT);
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break;
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case 16:
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#ifndef __BIG_ENDIAN
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PM3_WRITE_REG(par, PM3ByAperture1Mode,
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PM3ByApertureMode_PIXELSIZE_16BIT);
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PM3_WRITE_REG(par, PM3ByAperture2Mode,
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PM3ByApertureMode_PIXELSIZE_16BIT);
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#else
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PM3_WRITE_REG(par, PM3ByAperture1Mode,
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PM3ByApertureMode_PIXELSIZE_16BIT |
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PM3ByApertureMode_BYTESWAP_BADC);
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PM3_WRITE_REG(par, PM3ByAperture2Mode,
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PM3ByApertureMode_PIXELSIZE_16BIT |
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PM3ByApertureMode_BYTESWAP_BADC);
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#endif /* ! __BIG_ENDIAN */
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break;
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case 32:
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#ifndef __BIG_ENDIAN
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PM3_WRITE_REG(par, PM3ByAperture1Mode,
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PM3ByApertureMode_PIXELSIZE_32BIT);
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PM3_WRITE_REG(par, PM3ByAperture2Mode,
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PM3ByApertureMode_PIXELSIZE_32BIT);
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#else
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PM3_WRITE_REG(par, PM3ByAperture1Mode,
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PM3ByApertureMode_PIXELSIZE_32BIT |
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PM3ByApertureMode_BYTESWAP_DCBA);
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PM3_WRITE_REG(par, PM3ByAperture2Mode,
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PM3ByApertureMode_PIXELSIZE_32BIT |
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PM3ByApertureMode_BYTESWAP_DCBA);
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#endif /* ! __BIG_ENDIAN */
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break;
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default:
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DPRINTK("Unsupported depth %d\n", bpp);
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break;
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}
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/*
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* Oxygen VX1 - it appears that setting PM3VideoControl and
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* then PM3RD_SyncControl to the same SYNC settings undoes
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* any net change - they seem to xor together. Only set the
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* sync options in PM3RD_SyncControl. --rmk
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*/
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{
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unsigned int video = par->video;
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video &= ~(PM3VideoControl_HSYNC_MASK |
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PM3VideoControl_VSYNC_MASK);
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video |= PM3VideoControl_HSYNC_ACTIVE_HIGH |
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PM3VideoControl_VSYNC_ACTIVE_HIGH;
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PM3_WRITE_REG(par, PM3VideoControl, video);
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}
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PM3_WRITE_REG(par, PM3VClkCtl,
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(PM3_READ_REG(par, PM3VClkCtl) & 0xFFFFFFFC));
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PM3_WRITE_REG(par, PM3ScreenBase, par->base);
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PM3_WRITE_REG(par, PM3ChipConfig,
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(PM3_READ_REG(par, PM3ChipConfig) & 0xFFFFFFFD));
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wmb();
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{
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unsigned char uninitialized_var(m); /* ClkPreScale */
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unsigned char uninitialized_var(n); /* ClkFeedBackScale */
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unsigned char uninitialized_var(p); /* ClkPostScale */
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unsigned long pixclock = PICOS2KHZ(info->var.pixclock);
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(void)pm3fb_calculate_clock(pixclock, &m, &n, &p);
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DPRINTK("Pixclock: %ld, Pre: %d, Feedback: %d, Post: %d\n",
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pixclock, (int) m, (int) n, (int) p);
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PM3_WRITE_DAC_REG(par, PM3RD_DClk0PreScale, m);
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PM3_WRITE_DAC_REG(par, PM3RD_DClk0FeedbackScale, n);
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PM3_WRITE_DAC_REG(par, PM3RD_DClk0PostScale, p);
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}
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/*
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PM3_WRITE_DAC_REG(par, PM3RD_IndexControl, 0x00);
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*/
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/*
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PM3_SLOW_WRITE_REG(par, PM3RD_IndexControl, 0x00);
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*/
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if ((par->video & PM3VideoControl_HSYNC_MASK) ==
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PM3VideoControl_HSYNC_ACTIVE_HIGH)
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tempsync |= PM3RD_SyncControl_HSYNC_ACTIVE_HIGH;
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if ((par->video & PM3VideoControl_VSYNC_MASK) ==
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PM3VideoControl_VSYNC_ACTIVE_HIGH)
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tempsync |= PM3RD_SyncControl_VSYNC_ACTIVE_HIGH;
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PM3_WRITE_DAC_REG(par, PM3RD_SyncControl, tempsync);
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DPRINTK("PM3RD_SyncControl: %d\n", tempsync);
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PM3_WRITE_DAC_REG(par, PM3RD_DACControl, 0x00);
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switch (pm3fb_depth(&info->var)) {
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case 8:
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PM3_WRITE_DAC_REG(par, PM3RD_PixelSize,
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PM3RD_PixelSize_8_BIT_PIXELS);
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PM3_WRITE_DAC_REG(par, PM3RD_ColorFormat,
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PM3RD_ColorFormat_CI8_COLOR |
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PM3RD_ColorFormat_COLOR_ORDER_BLUE_LOW);
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tempmisc |= PM3RD_MiscControl_HIGHCOLOR_RES_ENABLE;
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break;
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case 12:
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PM3_WRITE_DAC_REG(par, PM3RD_PixelSize,
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PM3RD_PixelSize_16_BIT_PIXELS);
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PM3_WRITE_DAC_REG(par, PM3RD_ColorFormat,
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PM3RD_ColorFormat_4444_COLOR |
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PM3RD_ColorFormat_COLOR_ORDER_BLUE_LOW |
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PM3RD_ColorFormat_LINEAR_COLOR_EXT_ENABLE);
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tempmisc |= PM3RD_MiscControl_DIRECTCOLOR_ENABLE |
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PM3RD_MiscControl_HIGHCOLOR_RES_ENABLE;
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break;
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case 15:
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PM3_WRITE_DAC_REG(par, PM3RD_PixelSize,
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PM3RD_PixelSize_16_BIT_PIXELS);
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PM3_WRITE_DAC_REG(par, PM3RD_ColorFormat,
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PM3RD_ColorFormat_5551_FRONT_COLOR |
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PM3RD_ColorFormat_COLOR_ORDER_BLUE_LOW |
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PM3RD_ColorFormat_LINEAR_COLOR_EXT_ENABLE);
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tempmisc |= PM3RD_MiscControl_DIRECTCOLOR_ENABLE |
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PM3RD_MiscControl_HIGHCOLOR_RES_ENABLE;
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break;
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case 16:
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PM3_WRITE_DAC_REG(par, PM3RD_PixelSize,
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PM3RD_PixelSize_16_BIT_PIXELS);
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PM3_WRITE_DAC_REG(par, PM3RD_ColorFormat,
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PM3RD_ColorFormat_565_FRONT_COLOR |
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PM3RD_ColorFormat_COLOR_ORDER_BLUE_LOW |
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PM3RD_ColorFormat_LINEAR_COLOR_EXT_ENABLE);
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tempmisc |= PM3RD_MiscControl_DIRECTCOLOR_ENABLE |
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PM3RD_MiscControl_HIGHCOLOR_RES_ENABLE;
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break;
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case 32:
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PM3_WRITE_DAC_REG(par, PM3RD_PixelSize,
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PM3RD_PixelSize_32_BIT_PIXELS);
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PM3_WRITE_DAC_REG(par, PM3RD_ColorFormat,
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PM3RD_ColorFormat_8888_COLOR |
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PM3RD_ColorFormat_COLOR_ORDER_BLUE_LOW);
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tempmisc |= PM3RD_MiscControl_DIRECTCOLOR_ENABLE |
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PM3RD_MiscControl_HIGHCOLOR_RES_ENABLE;
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break;
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}
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PM3_WRITE_DAC_REG(par, PM3RD_MiscControl, tempmisc);
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}
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/*
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* hardware independent functions
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*/
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int pm3fb_init(void);
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static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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{
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u32 lpitch;
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unsigned bpp = var->red.length + var->green.length
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+ var->blue.length + var->transp.length;
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if ( bpp != var->bits_per_pixel ) {
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/* set predefined mode for bits_per_pixel settings */
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switch(var->bits_per_pixel) {
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case 8:
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var->red.length = var->green.length = var->blue.length = 8;
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var->red.offset = var->green.offset = var->blue.offset = 0;
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var->transp.offset = 0;
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var->transp.length = 0;
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break;
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case 16:
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var->red.length = var->blue.length = 5;
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var->green.length = 6;
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var->transp.length = 0;
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break;
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case 32:
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var->red.length = var->green.length = var->blue.length = 8;
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var->transp.length = 8;
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break;
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default:
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DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
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return -EINVAL;
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}
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}
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/* it is assumed BGRA order */
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if (var->bits_per_pixel > 8 )
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{
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var->blue.offset = 0;
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var->green.offset = var->blue.length;
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var->red.offset = var->green.offset + var->green.length;
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var->transp.offset = var->red.offset + var->red.length;
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}
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var->height = var->width = -1;
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if (var->xres != var->xres_virtual) {
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DPRINTK("virtual x resolution != physical x resolution not supported\n");
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return -EINVAL;
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}
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if (var->yres > var->yres_virtual) {
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DPRINTK("virtual y resolution < physical y resolution not possible\n");
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return -EINVAL;
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}
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if (var->xoffset) {
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DPRINTK("xoffset not supported\n");
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return -EINVAL;
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}
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if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
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DPRINTK("interlace not supported\n");
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return -EINVAL;
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}
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var->xres = (var->xres + 31) & ~31; /* could sometimes be 8 */
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lpitch = var->xres * ((var->bits_per_pixel + 7)>>3);
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|
|
if (var->xres < 200 || var->xres > 2048) {
|
|
DPRINTK("width not supported: %u\n", var->xres);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (var->yres < 200 || var->yres > 4095) {
|
|
DPRINTK("height not supported: %u\n", var->yres);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (lpitch * var->yres_virtual > info->fix.smem_len) {
|
|
DPRINTK("no memory for screen (%ux%ux%u)\n",
|
|
var->xres, var->yres_virtual, var->bits_per_pixel);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (PICOS2KHZ(var->pixclock) > PM3_MAX_PIXCLOCK) {
|
|
DPRINTK("pixclock too high (%ldKHz)\n", PICOS2KHZ(var->pixclock));
|
|
return -EINVAL;
|
|
}
|
|
|
|
var->accel_flags = 0; /* Can't mmap if this is on */
|
|
|
|
DPRINTK("Checking graphics mode at %dx%d depth %d\n",
|
|
var->xres, var->yres, var->bits_per_pixel);
|
|
return 0;
|
|
}
|
|
|
|
static int pm3fb_set_par(struct fb_info *info)
|
|
{
|
|
struct pm3_par *par = info->par;
|
|
const u32 xres = (info->var.xres + 31) & ~31;
|
|
const unsigned bpp = info->var.bits_per_pixel;
|
|
|
|
par->base = pm3fb_shift_bpp(bpp,(info->var.yoffset * xres)
|
|
+ info->var.xoffset);
|
|
par->video = 0;
|
|
|
|
if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
|
|
par->video |= PM3VideoControl_HSYNC_ACTIVE_HIGH;
|
|
else
|
|
par->video |= PM3VideoControl_HSYNC_ACTIVE_LOW;
|
|
|
|
if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
|
|
par->video |= PM3VideoControl_VSYNC_ACTIVE_HIGH;
|
|
else
|
|
par->video |= PM3VideoControl_VSYNC_ACTIVE_LOW;
|
|
|
|
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
|
|
par->video |= PM3VideoControl_LINE_DOUBLE_ON;
|
|
else
|
|
par->video |= PM3VideoControl_LINE_DOUBLE_OFF;
|
|
|
|
if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
|
|
par->video |= PM3VideoControl_ENABLE;
|
|
else {
|
|
par->video |= PM3VideoControl_DISABLE;
|
|
DPRINTK("PM3Video disabled\n");
|
|
}
|
|
switch (bpp) {
|
|
case 8:
|
|
par->video |= PM3VideoControl_PIXELSIZE_8BIT;
|
|
break;
|
|
case 16:
|
|
par->video |= PM3VideoControl_PIXELSIZE_16BIT;
|
|
break;
|
|
case 32:
|
|
par->video |= PM3VideoControl_PIXELSIZE_32BIT;
|
|
break;
|
|
default:
|
|
DPRINTK("Unsupported depth\n");
|
|
break;
|
|
}
|
|
|
|
info->fix.visual =
|
|
(bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
|
|
info->fix.line_length = ((info->var.xres_virtual + 7) & ~7)
|
|
* bpp / 8;
|
|
|
|
/* pm3fb_clear_memory(info, 0);*/
|
|
pm3fb_clear_colormap(par, 0, 0, 0);
|
|
PM3_WRITE_DAC_REG(par, PM3RD_CursorMode,
|
|
PM3RD_CursorMode_CURSOR_DISABLE);
|
|
pm3fb_write_mode(info);
|
|
return 0;
|
|
}
|
|
|
|
static int pm3fb_setcolreg(unsigned regno, unsigned red, unsigned green,
|
|
unsigned blue, unsigned transp,
|
|
struct fb_info *info)
|
|
{
|
|
struct pm3_par *par = info->par;
|
|
|
|
if (regno >= 256) /* no. of hw registers */
|
|
return -EINVAL;
|
|
|
|
/* grayscale works only partially under directcolor */
|
|
if (info->var.grayscale) {
|
|
/* grayscale = 0.30*R + 0.59*G + 0.11*B */
|
|
red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
|
|
}
|
|
|
|
/* Directcolor:
|
|
* var->{color}.offset contains start of bitfield
|
|
* var->{color}.length contains length of bitfield
|
|
* {hardwarespecific} contains width of DAC
|
|
* pseudo_palette[X] is programmed to (X << red.offset) |
|
|
* (X << green.offset) |
|
|
* (X << blue.offset)
|
|
* RAMDAC[X] is programmed to (red, green, blue)
|
|
* color depth = SUM(var->{color}.length)
|
|
*
|
|
* Pseudocolor:
|
|
* var->{color}.offset is 0
|
|
* var->{color}.length contains width of DAC or the number of unique
|
|
* colors available (color depth)
|
|
* pseudo_palette is not used
|
|
* RAMDAC[X] is programmed to (red, green, blue)
|
|
* color depth = var->{color}.length
|
|
*/
|
|
|
|
/*
|
|
* This is the point where the color is converted to something that
|
|
* is acceptable by the hardware.
|
|
*/
|
|
#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
|
|
red = CNVT_TOHW(red, info->var.red.length);
|
|
green = CNVT_TOHW(green, info->var.green.length);
|
|
blue = CNVT_TOHW(blue, info->var.blue.length);
|
|
transp = CNVT_TOHW(transp, info->var.transp.length);
|
|
#undef CNVT_TOHW
|
|
|
|
if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
|
|
info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
|
|
u32 v;
|
|
|
|
if (regno >= 16)
|
|
return -EINVAL;
|
|
|
|
v = (red << info->var.red.offset) |
|
|
(green << info->var.green.offset) |
|
|
(blue << info->var.blue.offset) |
|
|
(transp << info->var.transp.offset);
|
|
|
|
switch (info->var.bits_per_pixel) {
|
|
case 8:
|
|
break;
|
|
case 16:
|
|
case 32:
|
|
((u32*)(info->pseudo_palette))[regno] = v;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
|
|
pm3fb_set_color(par, regno, red, green, blue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pm3fb_pan_display(struct fb_var_screeninfo *var,
|
|
struct fb_info *info)
|
|
{
|
|
struct pm3_par *par = info->par;
|
|
const u32 xres = (var->xres + 31) & ~31;
|
|
|
|
par->base = pm3fb_shift_bpp(var->bits_per_pixel,
|
|
(var->yoffset * xres)
|
|
+ var->xoffset);
|
|
PM3_WAIT(par, 1);
|
|
PM3_WRITE_REG(par, PM3ScreenBase, par->base);
|
|
return 0;
|
|
}
|
|
|
|
static int pm3fb_blank(int blank_mode, struct fb_info *info)
|
|
{
|
|
struct pm3_par *par = info->par;
|
|
u32 video = par->video;
|
|
|
|
/*
|
|
* Oxygen VX1 - it appears that setting PM3VideoControl and
|
|
* then PM3RD_SyncControl to the same SYNC settings undoes
|
|
* any net change - they seem to xor together. Only set the
|
|
* sync options in PM3RD_SyncControl. --rmk
|
|
*/
|
|
video &= ~(PM3VideoControl_HSYNC_MASK |
|
|
PM3VideoControl_VSYNC_MASK);
|
|
video |= PM3VideoControl_HSYNC_ACTIVE_HIGH |
|
|
PM3VideoControl_VSYNC_ACTIVE_HIGH;
|
|
|
|
switch (blank_mode) {
|
|
case FB_BLANK_UNBLANK:
|
|
video |= PM3VideoControl_ENABLE;
|
|
break;
|
|
case FB_BLANK_NORMAL:
|
|
video &= ~(PM3VideoControl_ENABLE);
|
|
break;
|
|
case FB_BLANK_HSYNC_SUSPEND:
|
|
video &= ~(PM3VideoControl_HSYNC_MASK |
|
|
PM3VideoControl_BLANK_ACTIVE_LOW);
|
|
break;
|
|
case FB_BLANK_VSYNC_SUSPEND:
|
|
video &= ~(PM3VideoControl_VSYNC_MASK |
|
|
PM3VideoControl_BLANK_ACTIVE_LOW);
|
|
break;
|
|
case FB_BLANK_POWERDOWN:
|
|
video &= ~(PM3VideoControl_HSYNC_MASK |
|
|
PM3VideoControl_VSYNC_MASK |
|
|
PM3VideoControl_BLANK_ACTIVE_LOW);
|
|
break;
|
|
default:
|
|
DPRINTK("Unsupported blanking %d\n", blank_mode);
|
|
return 1;
|
|
}
|
|
|
|
PM3_WAIT(par, 1);
|
|
PM3_WRITE_REG(par,PM3VideoControl, video);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Frame buffer operations
|
|
*/
|
|
|
|
static struct fb_ops pm3fb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = pm3fb_check_var,
|
|
.fb_set_par = pm3fb_set_par,
|
|
.fb_setcolreg = pm3fb_setcolreg,
|
|
.fb_pan_display = pm3fb_pan_display,
|
|
.fb_fillrect = cfb_fillrect,
|
|
.fb_copyarea = cfb_copyarea,
|
|
.fb_imageblit = cfb_imageblit,
|
|
.fb_blank = pm3fb_blank,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Initialization
|
|
*/
|
|
|
|
/* mmio register are already mapped when this function is called */
|
|
/* the pm3fb_fix.smem_start is also set */
|
|
static unsigned long pm3fb_size_memory(struct pm3_par *par)
|
|
{
|
|
unsigned long memsize = 0, tempBypass, i, temp1, temp2;
|
|
unsigned char __iomem *screen_mem;
|
|
|
|
pm3fb_fix.smem_len = 64 * 1024l * 1024; /* request full aperture size */
|
|
/* Linear frame buffer - request region and map it. */
|
|
if (!request_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len,
|
|
"pm3fb smem")) {
|
|
printk(KERN_WARNING "pm3fb: Can't reserve smem.\n");
|
|
return 0;
|
|
}
|
|
screen_mem =
|
|
ioremap_nocache(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
if (!screen_mem) {
|
|
printk(KERN_WARNING "pm3fb: Can't ioremap smem area.\n");
|
|
release_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
return 0;
|
|
}
|
|
|
|
/* TODO: card-specific stuff, *before* accessing *any* FB memory */
|
|
/* For Appian Jeronimo 2000 board second head */
|
|
|
|
tempBypass = PM3_READ_REG(par, PM3MemBypassWriteMask);
|
|
|
|
DPRINTK("PM3MemBypassWriteMask was: 0x%08lx\n", tempBypass);
|
|
|
|
PM3_WAIT(par, 1);
|
|
PM3_WRITE_REG(par, PM3MemBypassWriteMask, 0xFFFFFFFF);
|
|
|
|
/* pm3 split up memory, replicates, and do a lot of nasty stuff IMHO ;-) */
|
|
for (i = 0; i < 32; i++) {
|
|
fb_writel(i * 0x00345678,
|
|
(screen_mem + (i * 1048576)));
|
|
mb();
|
|
temp1 = fb_readl((screen_mem + (i * 1048576)));
|
|
|
|
/* Let's check for wrapover, write will fail at 16MB boundary */
|
|
if (temp1 == (i * 0x00345678))
|
|
memsize = i;
|
|
else
|
|
break;
|
|
}
|
|
|
|
DPRINTK("First detect pass already got %ld MB\n", memsize + 1);
|
|
|
|
if (memsize + 1 == i) {
|
|
for (i = 0; i < 32; i++) {
|
|
/* Clear first 32MB ; 0 is 0, no need to byteswap */
|
|
writel(0x0000000, (screen_mem + (i * 1048576)));
|
|
}
|
|
wmb();
|
|
|
|
for (i = 32; i < 64; i++) {
|
|
fb_writel(i * 0x00345678,
|
|
(screen_mem + (i * 1048576)));
|
|
mb();
|
|
temp1 =
|
|
fb_readl((screen_mem + (i * 1048576)));
|
|
temp2 =
|
|
fb_readl((screen_mem + ((i - 32) * 1048576)));
|
|
/* different value, different RAM... */
|
|
if ((temp1 == (i * 0x00345678)) && (temp2 == 0))
|
|
memsize = i;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
DPRINTK("Second detect pass got %ld MB\n", memsize + 1);
|
|
|
|
PM3_WAIT(par, 1);
|
|
PM3_WRITE_REG(par, PM3MemBypassWriteMask, tempBypass);
|
|
|
|
iounmap(screen_mem);
|
|
release_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
memsize = 1048576 * (memsize + 1);
|
|
|
|
DPRINTK("Returning 0x%08lx bytes\n", memsize);
|
|
|
|
return memsize;
|
|
}
|
|
|
|
static int __devinit pm3fb_probe(struct pci_dev *dev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct fb_info *info;
|
|
struct pm3_par *par;
|
|
struct device* device = &dev->dev; /* for pci drivers */
|
|
int err, retval = -ENXIO;
|
|
|
|
err = pci_enable_device(dev);
|
|
if (err) {
|
|
printk(KERN_WARNING "pm3fb: Can't enable PCI dev: %d\n", err);
|
|
return err;
|
|
}
|
|
/*
|
|
* Dynamically allocate info and par
|
|
*/
|
|
info = framebuffer_alloc(sizeof(struct pm3_par), device);
|
|
|
|
if (!info)
|
|
return -ENOMEM;
|
|
par = info->par;
|
|
|
|
/*
|
|
* Here we set the screen_base to the virtual memory address
|
|
* for the framebuffer.
|
|
*/
|
|
pm3fb_fix.mmio_start = pci_resource_start(dev, 0);
|
|
pm3fb_fix.mmio_len = PM3_REGS_SIZE;
|
|
|
|
/* Registers - request region and map it. */
|
|
if (!request_mem_region(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len,
|
|
"pm3fb regbase")) {
|
|
printk(KERN_WARNING "pm3fb: Can't reserve regbase.\n");
|
|
goto err_exit_neither;
|
|
}
|
|
par->v_regs =
|
|
ioremap_nocache(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len);
|
|
if (!par->v_regs) {
|
|
printk(KERN_WARNING "pm3fb: Can't remap %s register area.\n",
|
|
pm3fb_fix.id);
|
|
release_mem_region(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len);
|
|
goto err_exit_neither;
|
|
}
|
|
|
|
#if defined(__BIG_ENDIAN)
|
|
pm3fb_fix.mmio_start += PM3_REGS_SIZE;
|
|
DPRINTK("Adjusting register base for big-endian.\n");
|
|
#endif
|
|
/* Linear frame buffer - request region and map it. */
|
|
pm3fb_fix.smem_start = pci_resource_start(dev, 1);
|
|
pm3fb_fix.smem_len = pm3fb_size_memory(par);
|
|
if (!pm3fb_fix.smem_len)
|
|
{
|
|
printk(KERN_WARNING "pm3fb: Can't find memory on board.\n");
|
|
goto err_exit_mmio;
|
|
}
|
|
if (!request_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len,
|
|
"pm3fb smem")) {
|
|
printk(KERN_WARNING "pm3fb: Can't reserve smem.\n");
|
|
goto err_exit_mmio;
|
|
}
|
|
info->screen_base =
|
|
ioremap_nocache(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
if (!info->screen_base) {
|
|
printk(KERN_WARNING "pm3fb: Can't ioremap smem area.\n");
|
|
release_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
goto err_exit_mmio;
|
|
}
|
|
info->screen_size = pm3fb_fix.smem_len;
|
|
|
|
info->fbops = &pm3fb_ops;
|
|
|
|
par->video = PM3_READ_REG(par, PM3VideoControl);
|
|
|
|
info->fix = pm3fb_fix;
|
|
info->pseudo_palette = par->palette;
|
|
info->flags = FBINFO_DEFAULT;/* | FBINFO_HWACCEL_YPAN;*/
|
|
|
|
/*
|
|
* This should give a reasonable default video mode. The following is
|
|
* done when we can set a video mode.
|
|
*/
|
|
if (!mode_option)
|
|
mode_option = "640x480@60";
|
|
|
|
retval = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
|
|
|
|
if (!retval || retval == 4) {
|
|
retval = -EINVAL;
|
|
goto err_exit_both;
|
|
}
|
|
|
|
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
|
|
retval = -ENOMEM;
|
|
goto err_exit_both;
|
|
}
|
|
|
|
/*
|
|
* For drivers that can...
|
|
*/
|
|
pm3fb_check_var(&info->var, info);
|
|
|
|
if (register_framebuffer(info) < 0) {
|
|
retval = -EINVAL;
|
|
goto err_exit_all;
|
|
}
|
|
printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
|
|
info->fix.id);
|
|
pci_set_drvdata(dev, info);
|
|
return 0;
|
|
|
|
err_exit_all:
|
|
fb_dealloc_cmap(&info->cmap);
|
|
err_exit_both:
|
|
iounmap(info->screen_base);
|
|
release_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
|
|
err_exit_mmio:
|
|
iounmap(par->v_regs);
|
|
release_mem_region(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len);
|
|
err_exit_neither:
|
|
framebuffer_release(info);
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Cleanup
|
|
*/
|
|
static void __devexit pm3fb_remove(struct pci_dev *dev)
|
|
{
|
|
struct fb_info *info = pci_get_drvdata(dev);
|
|
|
|
if (info) {
|
|
struct fb_fix_screeninfo *fix = &info->fix;
|
|
struct pm3_par *par = info->par;
|
|
|
|
unregister_framebuffer(info);
|
|
fb_dealloc_cmap(&info->cmap);
|
|
|
|
iounmap(info->screen_base);
|
|
release_mem_region(fix->smem_start, fix->smem_len);
|
|
iounmap(par->v_regs);
|
|
release_mem_region(fix->mmio_start, fix->mmio_len);
|
|
|
|
pci_set_drvdata(dev, NULL);
|
|
framebuffer_release(info);
|
|
}
|
|
}
|
|
|
|
static struct pci_device_id pm3fb_id_table[] = {
|
|
{ PCI_VENDOR_ID_3DLABS, 0x0a,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
|
|
{ 0, }
|
|
};
|
|
|
|
/* For PCI drivers */
|
|
static struct pci_driver pm3fb_driver = {
|
|
.name = "pm3fb",
|
|
.id_table = pm3fb_id_table,
|
|
.probe = pm3fb_probe,
|
|
.remove = __devexit_p(pm3fb_remove),
|
|
};
|
|
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|
MODULE_DEVICE_TABLE(pci, pm3fb_id_table);
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|
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|
#ifndef MODULE
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|
/*
|
|
* Setup
|
|
*/
|
|
|
|
/*
|
|
* Only necessary if your driver takes special options,
|
|
* otherwise we fall back on the generic fb_setup().
|
|
*/
|
|
static int __init pm3fb_setup(char *options)
|
|
{
|
|
/* Parse user speficied options (`video=pm3fb:') */
|
|
return 0;
|
|
}
|
|
#endif /* MODULE */
|
|
|
|
int __init pm3fb_init(void)
|
|
{
|
|
/*
|
|
* For kernel boot options (in 'video=pm3fb:<options>' format)
|
|
*/
|
|
#ifndef MODULE
|
|
char *option = NULL;
|
|
|
|
if (fb_get_options("pm3fb", &option))
|
|
return -ENODEV;
|
|
pm3fb_setup(option);
|
|
#endif
|
|
|
|
return pci_register_driver(&pm3fb_driver);
|
|
}
|
|
|
|
static void __exit pm3fb_exit(void)
|
|
{
|
|
pci_unregister_driver(&pm3fb_driver);
|
|
}
|
|
|
|
module_init(pm3fb_init);
|
|
module_exit(pm3fb_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|