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a8f340e394
MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a function of the VT layer than the TTY one. Moving these to vt.h and vt_kern.h allows all of the framebuffer and VT console drivers to remove their dependency on tty.h. [akpm@osdl.org: fix alpha build] Signed-off-by: Jon Smirl <jonsmir@gmail.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1327 lines
35 KiB
C
1327 lines
35 KiB
C
/*
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* Permedia2 framebuffer driver.
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*
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* 2.5/2.6 driver:
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* Copyright (c) 2003 Jim Hague (jim.hague@acm.org)
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*
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* based on 2.4 driver:
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* Copyright (c) 1998-2000 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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* and additional input from James Simmon's port of Hannu Mallat's tdfx
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* driver.
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*
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* I have a Creative Graphics Blaster Exxtreme card - pm2fb on x86. I
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* have no access to other pm2fb implementations. Sparc (and thus
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* hopefully other big-endian) devices now work, thanks to a lot of
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* testing work by Ron Murray. I have no access to CVision hardware,
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* and therefore for now I am omitting the CVision code.
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*
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* Multiple boards support has been on the TODO list for ages.
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* Don't expect this to change.
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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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*/
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#include <linux/module.h>
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#include <linux/moduleparam.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/permedia2.h>
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#include <video/cvisionppc.h>
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#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
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#error "The endianness of the target host has not been defined."
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#endif
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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 PM2FB_MASTER_DEBUG
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#ifdef PM2FB_MASTER_DEBUG
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#define DPRINTK(a,b...) printk(KERN_DEBUG "pm2fb: %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 __devinitdata = NULL;
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/*
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* The XFree GLINT driver will (I think to implement hardware cursor
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* support on TVP4010 and similar where there is no RAMDAC - see
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* comment in set_video) always request +ve sync regardless of what
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* the mode requires. This screws me because I have a Sun
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* fixed-frequency monitor which absolutely has to have -ve sync. So
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* these flags allow the user to specify that requests for +ve sync
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* should be silently turned in -ve sync.
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*/
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static int lowhsync;
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static int lowvsync;
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/*
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* The hardware state of the graphics card that isn't part of the
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* screeninfo.
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*/
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struct pm2fb_par
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{
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pm2type_t type; /* Board type */
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u32 fb_size; /* framebuffer memory size */
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unsigned char __iomem *v_fb; /* virtual address of frame buffer */
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unsigned char __iomem *v_regs;/* virtual address of p_regs */
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u32 memclock; /* memclock */
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u32 video; /* video flags before blanking */
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u32 mem_config; /* MemConfig reg at probe */
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u32 mem_control; /* MemControl reg at probe */
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u32 boot_address; /* BootAddress reg at probe */
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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.
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*/
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static struct fb_fix_screeninfo pm2fb_fix __devinitdata = {
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.id = "",
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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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* Default video mode. In case the modedb doesn't work.
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*/
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static struct fb_var_screeninfo pm2fb_var __devinitdata = {
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/* "640x480, 8 bpp @ 60 Hz */
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.xres = 640,
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.yres = 480,
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.xres_virtual = 640,
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.yres_virtual = 480,
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.bits_per_pixel =8,
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.red = {0, 8, 0},
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.blue = {0, 8, 0},
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.green = {0, 8, 0},
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.activate = FB_ACTIVATE_NOW,
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.height = -1,
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.width = -1,
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.accel_flags = 0,
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.pixclock = 39721,
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.left_margin = 40,
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.right_margin = 24,
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.upper_margin = 32,
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.lower_margin = 11,
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.hsync_len = 96,
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.vsync_len = 2,
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.vmode = FB_VMODE_NONINTERLACED
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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 RD32(unsigned char __iomem *base, s32 off)
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{
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return fb_readl(base + off);
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}
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static inline void WR32(unsigned char __iomem *base, s32 off, u32 v)
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{
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fb_writel(v, base + off);
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}
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static inline u32 pm2_RD(struct pm2fb_par* p, s32 off)
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{
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return RD32(p->v_regs, off);
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}
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static inline void pm2_WR(struct pm2fb_par* p, s32 off, u32 v)
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{
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WR32(p->v_regs, off, v);
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}
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static inline u32 pm2_RDAC_RD(struct pm2fb_par* p, s32 idx)
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{
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int index = PM2R_RD_INDEXED_DATA;
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switch (p->type) {
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case PM2_TYPE_PERMEDIA2:
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pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
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break;
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case PM2_TYPE_PERMEDIA2V:
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pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
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index = PM2VR_RD_INDEXED_DATA;
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break;
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}
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mb();
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return pm2_RD(p, index);
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}
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static inline void pm2_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v)
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{
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int index = PM2R_RD_INDEXED_DATA;
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switch (p->type) {
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case PM2_TYPE_PERMEDIA2:
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pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
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break;
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case PM2_TYPE_PERMEDIA2V:
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pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
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index = PM2VR_RD_INDEXED_DATA;
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break;
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}
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mb();
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pm2_WR(p, index, v);
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}
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static inline void pm2v_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v)
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{
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pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
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mb();
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pm2_WR(p, PM2VR_RD_INDEXED_DATA, v);
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}
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#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
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#define WAIT_FIFO(p,a)
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#else
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static inline void WAIT_FIFO(struct pm2fb_par* p, u32 a)
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{
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while( pm2_RD(p, PM2R_IN_FIFO_SPACE) < a );
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mb();
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}
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#endif
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/*
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* partial products for the supported horizontal resolutions.
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*/
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#define PACKPP(p0,p1,p2) (((p2) << 6) | ((p1) << 3) | (p0))
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static const struct {
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u16 width;
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u16 pp;
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} pp_table[] = {
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{ 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) },
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{ 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) },
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{ 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) },
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{ 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) },
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{ 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) },
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{ 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) },
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{ 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) },
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{ 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) },
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{ 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) },
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{ 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) },
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{ 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) },
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{ 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) },
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{ 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) },
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{ 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) },
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{ 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) },
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{ 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) },
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{ 0, 0 } };
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static u32 partprod(u32 xres)
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{
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int i;
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for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++)
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;
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if ( pp_table[i].width == 0 )
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DPRINTK("invalid width %u\n", xres);
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return pp_table[i].pp;
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}
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static u32 to3264(u32 timing, int bpp, int is64)
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{
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switch (bpp) {
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case 8:
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timing >>= 2 + is64;
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break;
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case 16:
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timing >>= 1 + is64;
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break;
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case 24:
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timing = (timing * 3) >> (2 + is64);
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break;
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case 32:
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if (is64)
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timing >>= 1;
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break;
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}
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return timing;
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}
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static void pm2_mnp(u32 clk, unsigned char* mm, unsigned char* nn,
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unsigned char* pp)
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{
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unsigned char m;
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unsigned char n;
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unsigned char p;
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u32 f;
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s32 curr;
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s32 delta = 100000;
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*mm = *nn = *pp = 0;
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for (n = 2; n < 15; n++) {
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for (m = 2; m; m++) {
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f = PM2_REFERENCE_CLOCK * m / n;
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if (f >= 150000 && f <= 300000) {
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for ( p = 0; p < 5; p++, f >>= 1) {
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curr = ( clk > f ) ? clk - f : f - clk;
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if ( curr < delta ) {
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delta=curr;
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*mm=m;
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*nn=n;
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*pp=p;
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}
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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 void pm2v_mnp(u32 clk, unsigned char* mm, unsigned char* nn,
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unsigned char* pp)
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{
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unsigned char m;
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unsigned char n;
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unsigned char p;
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u32 f;
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s32 delta = 1000;
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*mm = *nn = *pp = 0;
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for (n = 1; n; n++) {
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for ( m = 1; m; m++) {
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for ( p = 0; p < 2; p++) {
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f = PM2_REFERENCE_CLOCK * n / (m * (1 << (p + 1)));
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if ( clk > f - delta && clk < f + delta ) {
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delta = ( clk > f ) ? clk - f : f - clk;
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*mm=m;
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*nn=n;
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*pp=p;
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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 void clear_palette(struct pm2fb_par* p) {
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int i=256;
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WAIT_FIFO(p, 1);
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pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
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wmb();
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while (i--) {
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WAIT_FIFO(p, 3);
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pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
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pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
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pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
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}
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}
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static void reset_card(struct pm2fb_par* p)
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{
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if (p->type == PM2_TYPE_PERMEDIA2V)
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pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0);
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pm2_WR(p, PM2R_RESET_STATUS, 0);
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mb();
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while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET)
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;
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mb();
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#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
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DPRINTK("FIFO disconnect enabled\n");
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pm2_WR(p, PM2R_FIFO_DISCON, 1);
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mb();
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#endif
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/* Restore stashed memory config information from probe */
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WAIT_FIFO(p, 3);
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pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control);
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pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address);
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wmb();
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pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config);
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}
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static void reset_config(struct pm2fb_par* p)
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{
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WAIT_FIFO(p, 52);
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pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG)&
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~(PM2F_VGA_ENABLE|PM2F_VGA_FIXED));
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pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L));
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pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L));
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pm2_WR(p, PM2R_FIFO_CONTROL, 0);
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pm2_WR(p, PM2R_APERTURE_ONE, 0);
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pm2_WR(p, PM2R_APERTURE_TWO, 0);
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pm2_WR(p, PM2R_RASTERIZER_MODE, 0);
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pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB);
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pm2_WR(p, PM2R_LB_READ_FORMAT, 0);
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pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0);
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pm2_WR(p, PM2R_LB_READ_MODE, 0);
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pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0);
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pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0);
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pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0);
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pm2_WR(p, PM2R_FB_WINDOW_BASE, 0);
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pm2_WR(p, PM2R_LB_WINDOW_BASE, 0);
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pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L));
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pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L));
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pm2_WR(p, PM2R_FB_READ_PIXEL, 0);
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pm2_WR(p, PM2R_DITHER_MODE, 0);
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pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0);
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pm2_WR(p, PM2R_DEPTH_MODE, 0);
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pm2_WR(p, PM2R_STENCIL_MODE, 0);
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pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0);
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pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0);
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pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0);
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pm2_WR(p, PM2R_YUV_MODE, 0);
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pm2_WR(p, PM2R_COLOR_DDA_MODE, 0);
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pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0);
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pm2_WR(p, PM2R_FOG_MODE, 0);
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pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0);
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pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0);
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pm2_WR(p, PM2R_STATISTICS_MODE, 0);
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pm2_WR(p, PM2R_SCISSOR_MODE, 0);
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pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION);
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switch (p->type) {
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case PM2_TYPE_PERMEDIA2:
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pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */
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pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0);
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pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8);
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break;
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case PM2_TYPE_PERMEDIA2V:
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pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */
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break;
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}
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pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0);
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pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0);
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pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0);
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pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0);
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pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0);
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}
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static void set_aperture(struct pm2fb_par* p, u32 depth)
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{
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/*
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* The hardware is little-endian. When used in big-endian
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* hosts, the on-chip aperture settings are used where
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* possible to translate from host to card byte order.
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*/
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WAIT_FIFO(p, 4);
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#ifdef __LITTLE_ENDIAN
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pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
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#else
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switch (depth) {
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case 24: /* RGB->BGR */
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/*
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* We can't use the aperture to translate host to
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* card byte order here, so we switch to BGR mode
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* in pm2fb_set_par().
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*/
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case 8: /* B->B */
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pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
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break;
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case 16: /* HL->LH */
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pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP);
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break;
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case 32: /* RGBA->ABGR */
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pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP);
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break;
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}
|
|
#endif
|
|
|
|
// We don't use aperture two, so this may be superflous
|
|
pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD);
|
|
}
|
|
|
|
static void set_color(struct pm2fb_par* p, unsigned char regno,
|
|
unsigned char r, unsigned char g, unsigned char b)
|
|
{
|
|
WAIT_FIFO(p, 4);
|
|
pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno);
|
|
wmb();
|
|
pm2_WR(p, PM2R_RD_PALETTE_DATA, r);
|
|
wmb();
|
|
pm2_WR(p, PM2R_RD_PALETTE_DATA, g);
|
|
wmb();
|
|
pm2_WR(p, PM2R_RD_PALETTE_DATA, b);
|
|
}
|
|
|
|
static void set_memclock(struct pm2fb_par* par, u32 clk)
|
|
{
|
|
int i;
|
|
unsigned char m, n, p;
|
|
|
|
pm2_mnp(clk, &m, &n, &p);
|
|
WAIT_FIFO(par, 10);
|
|
pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
|
|
wmb();
|
|
pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
|
|
pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
|
|
wmb();
|
|
pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
|
|
wmb();
|
|
pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
|
|
rmb();
|
|
for (i = 256;
|
|
i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
|
|
i--)
|
|
;
|
|
}
|
|
|
|
static void set_pixclock(struct pm2fb_par* par, u32 clk)
|
|
{
|
|
int i;
|
|
unsigned char m, n, p;
|
|
|
|
switch (par->type) {
|
|
case PM2_TYPE_PERMEDIA2:
|
|
pm2_mnp(clk, &m, &n, &p);
|
|
WAIT_FIFO(par, 8);
|
|
pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0);
|
|
wmb();
|
|
pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m);
|
|
pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n);
|
|
wmb();
|
|
pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p);
|
|
wmb();
|
|
pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS);
|
|
rmb();
|
|
for (i = 256;
|
|
i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
|
|
i--)
|
|
;
|
|
break;
|
|
case PM2_TYPE_PERMEDIA2V:
|
|
pm2v_mnp(clk/2, &m, &n, &p);
|
|
WAIT_FIFO(par, 8);
|
|
pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8);
|
|
pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m);
|
|
pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n);
|
|
pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p);
|
|
pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void set_video(struct pm2fb_par* p, u32 video) {
|
|
u32 tmp;
|
|
u32 vsync;
|
|
|
|
vsync = video;
|
|
|
|
DPRINTK("video = 0x%x\n", video);
|
|
|
|
/*
|
|
* The hardware cursor needs +vsync to recognise vert retrace.
|
|
* We may not be using the hardware cursor, but the X Glint
|
|
* driver may well. So always set +hsync/+vsync and then set
|
|
* the RAMDAC to invert the sync if necessary.
|
|
*/
|
|
vsync &= ~(PM2F_HSYNC_MASK|PM2F_VSYNC_MASK);
|
|
vsync |= PM2F_HSYNC_ACT_HIGH|PM2F_VSYNC_ACT_HIGH;
|
|
|
|
WAIT_FIFO(p, 5);
|
|
pm2_WR(p, PM2R_VIDEO_CONTROL, vsync);
|
|
|
|
switch (p->type) {
|
|
case PM2_TYPE_PERMEDIA2:
|
|
tmp = PM2F_RD_PALETTE_WIDTH_8;
|
|
if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
|
|
tmp |= 4; /* invert hsync */
|
|
if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
|
|
tmp |= 8; /* invert vsync */
|
|
pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp);
|
|
break;
|
|
case PM2_TYPE_PERMEDIA2V:
|
|
tmp = 0;
|
|
if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
|
|
tmp |= 1; /* invert hsync */
|
|
if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
|
|
tmp |= 4; /* invert vsync */
|
|
pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp);
|
|
pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* pm2fb_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
|
|
*
|
|
* Checks to see if the hardware supports the state requested by
|
|
* var passed in.
|
|
*
|
|
* Returns negative errno on error, or zero on success.
|
|
*/
|
|
static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
|
|
{
|
|
u32 lpitch;
|
|
|
|
if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
|
|
var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {
|
|
DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (var->xres != var->xres_virtual) {
|
|
DPRINTK("virtual x resolution != physical x resolution not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (var->yres > var->yres_virtual) {
|
|
DPRINTK("virtual y resolution < physical y resolution not possible\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (var->xoffset) {
|
|
DPRINTK("xoffset not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
|
|
DPRINTK("interlace not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */
|
|
lpitch = var->xres * ((var->bits_per_pixel + 7)>>3);
|
|
|
|
if (var->xres < 320 || var->xres > 1600) {
|
|
DPRINTK("width not supported: %u\n", var->xres);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (var->yres < 200 || var->yres > 1200) {
|
|
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) > PM2_MAX_PIXCLOCK) {
|
|
DPRINTK("pixclock too high (%ldKHz)\n", PICOS2KHZ(var->pixclock));
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch(var->bits_per_pixel) {
|
|
case 8:
|
|
var->red.length = var->green.length = var->blue.length = 8;
|
|
break;
|
|
case 16:
|
|
var->red.offset = 11;
|
|
var->red.length = 5;
|
|
var->green.offset = 5;
|
|
var->green.length = 6;
|
|
var->blue.offset = 0;
|
|
var->blue.length = 5;
|
|
break;
|
|
case 32:
|
|
var->transp.offset = 24;
|
|
var->transp.length = 8;
|
|
var->red.offset = 16;
|
|
var->green.offset = 8;
|
|
var->blue.offset = 0;
|
|
var->red.length = var->green.length = var->blue.length = 8;
|
|
break;
|
|
case 24:
|
|
#ifdef __BIG_ENDIAN
|
|
var->red.offset = 0;
|
|
var->blue.offset = 16;
|
|
#else
|
|
var->red.offset = 16;
|
|
var->blue.offset = 0;
|
|
#endif
|
|
var->green.offset = 8;
|
|
var->red.length = var->green.length = var->blue.length = 8;
|
|
break;
|
|
}
|
|
var->height = var->width = -1;
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* pm2fb_set_par - Alters the hardware state.
|
|
* @info: frame buffer structure that represents a single frame buffer
|
|
*
|
|
* Using the fb_var_screeninfo in fb_info we set the resolution of the
|
|
* this particular framebuffer.
|
|
*/
|
|
static int pm2fb_set_par(struct fb_info *info)
|
|
{
|
|
struct pm2fb_par *par = info->par;
|
|
u32 pixclock;
|
|
u32 width, height, depth;
|
|
u32 hsstart, hsend, hbend, htotal;
|
|
u32 vsstart, vsend, vbend, vtotal;
|
|
u32 stride;
|
|
u32 base;
|
|
u32 video = 0;
|
|
u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE;
|
|
u32 txtmap = 0;
|
|
u32 pixsize = 0;
|
|
u32 clrformat = 0;
|
|
u32 xres;
|
|
int data64;
|
|
|
|
reset_card(par);
|
|
reset_config(par);
|
|
clear_palette(par);
|
|
if ( par->memclock )
|
|
set_memclock(par, par->memclock);
|
|
|
|
width = (info->var.xres_virtual + 7) & ~7;
|
|
height = info->var.yres_virtual;
|
|
depth = (info->var.bits_per_pixel + 7) & ~7;
|
|
depth = (depth > 32) ? 32 : depth;
|
|
data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V;
|
|
|
|
xres = (info->var.xres + 31) & ~31;
|
|
pixclock = PICOS2KHZ(info->var.pixclock);
|
|
if (pixclock > PM2_MAX_PIXCLOCK) {
|
|
DPRINTK("pixclock too high (%uKHz)\n", pixclock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
hsstart = to3264(info->var.right_margin, depth, data64);
|
|
hsend = hsstart + to3264(info->var.hsync_len, depth, data64);
|
|
hbend = hsend + to3264(info->var.left_margin, depth, data64);
|
|
htotal = to3264(xres, depth, data64) + hbend - 1;
|
|
vsstart = (info->var.lower_margin)
|
|
? info->var.lower_margin - 1
|
|
: 0; /* FIXME! */
|
|
vsend = info->var.lower_margin + info->var.vsync_len - 1;
|
|
vbend = info->var.lower_margin + info->var.vsync_len + info->var.upper_margin;
|
|
vtotal = info->var.yres + vbend - 1;
|
|
stride = to3264(width, depth, 1);
|
|
base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1);
|
|
if (data64)
|
|
video |= PM2F_DATA_64_ENABLE;
|
|
|
|
if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) {
|
|
if (lowhsync) {
|
|
DPRINTK("ignoring +hsync, using -hsync.\n");
|
|
video |= PM2F_HSYNC_ACT_LOW;
|
|
} else
|
|
video |= PM2F_HSYNC_ACT_HIGH;
|
|
}
|
|
else
|
|
video |= PM2F_HSYNC_ACT_LOW;
|
|
if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) {
|
|
if (lowvsync) {
|
|
DPRINTK("ignoring +vsync, using -vsync.\n");
|
|
video |= PM2F_VSYNC_ACT_LOW;
|
|
} else
|
|
video |= PM2F_VSYNC_ACT_HIGH;
|
|
}
|
|
else
|
|
video |= PM2F_VSYNC_ACT_LOW;
|
|
if ((info->var.vmode & FB_VMODE_MASK)==FB_VMODE_INTERLACED) {
|
|
DPRINTK("interlaced not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
if ((info->var.vmode & FB_VMODE_MASK)==FB_VMODE_DOUBLE)
|
|
video |= PM2F_LINE_DOUBLE;
|
|
if ((info->var.activate & FB_ACTIVATE_MASK)==FB_ACTIVATE_NOW)
|
|
video |= PM2F_VIDEO_ENABLE;
|
|
par->video = video;
|
|
|
|
info->fix.visual =
|
|
(depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
|
|
info->fix.line_length = info->var.xres * depth / 8;
|
|
info->cmap.len = 256;
|
|
|
|
/*
|
|
* Settings calculated. Now write them out.
|
|
*/
|
|
if (par->type == PM2_TYPE_PERMEDIA2V) {
|
|
WAIT_FIFO(par, 1);
|
|
pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
|
|
}
|
|
|
|
set_aperture(par, depth);
|
|
|
|
mb();
|
|
WAIT_FIFO(par, 19);
|
|
pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL,
|
|
( depth == 8 ) ? 0 : PM2F_COLOR_KEY_TEST_OFF);
|
|
switch (depth) {
|
|
case 8:
|
|
pm2_WR(par, PM2R_FB_READ_PIXEL, 0);
|
|
clrformat = 0x0e;
|
|
break;
|
|
case 16:
|
|
pm2_WR(par, PM2R_FB_READ_PIXEL, 1);
|
|
clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565;
|
|
txtmap = PM2F_TEXTEL_SIZE_16;
|
|
pixsize = 1;
|
|
clrformat = 0x70;
|
|
break;
|
|
case 32:
|
|
pm2_WR(par, PM2R_FB_READ_PIXEL, 2);
|
|
clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888;
|
|
txtmap = PM2F_TEXTEL_SIZE_32;
|
|
pixsize = 2;
|
|
clrformat = 0x20;
|
|
break;
|
|
case 24:
|
|
pm2_WR(par, PM2R_FB_READ_PIXEL, 4);
|
|
clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888;
|
|
txtmap = PM2F_TEXTEL_SIZE_24;
|
|
pixsize = 4;
|
|
clrformat = 0x20;
|
|
break;
|
|
}
|
|
pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE);
|
|
pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres));
|
|
pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres));
|
|
pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres));
|
|
pm2_WR(par, PM2R_H_TOTAL, htotal);
|
|
pm2_WR(par, PM2R_HS_START, hsstart);
|
|
pm2_WR(par, PM2R_HS_END, hsend);
|
|
pm2_WR(par, PM2R_HG_END, hbend);
|
|
pm2_WR(par, PM2R_HB_END, hbend);
|
|
pm2_WR(par, PM2R_V_TOTAL, vtotal);
|
|
pm2_WR(par, PM2R_VS_START, vsstart);
|
|
pm2_WR(par, PM2R_VS_END, vsend);
|
|
pm2_WR(par, PM2R_VB_END, vbend);
|
|
pm2_WR(par, PM2R_SCREEN_STRIDE, stride);
|
|
wmb();
|
|
pm2_WR(par, PM2R_WINDOW_ORIGIN, 0);
|
|
pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width);
|
|
pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE);
|
|
wmb();
|
|
pm2_WR(par, PM2R_SCREEN_BASE, base);
|
|
wmb();
|
|
set_video(par, video);
|
|
WAIT_FIFO(par, 4);
|
|
switch (par->type) {
|
|
case PM2_TYPE_PERMEDIA2:
|
|
pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode);
|
|
break;
|
|
case PM2_TYPE_PERMEDIA2V:
|
|
pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize);
|
|
pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat);
|
|
break;
|
|
}
|
|
set_pixclock(par, pixclock);
|
|
DPRINTK("Setting graphics mode at %dx%d depth %d\n",
|
|
info->var.xres, info->var.yres, info->var.bits_per_pixel);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pm2fb_setcolreg - 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
|
|
*
|
|
* Set a single color register. The values supplied have a 16 bit
|
|
* magnitude which needs to be scaled in this function for the hardware.
|
|
* Pretty much a direct lift from tdfxfb.c.
|
|
*
|
|
* Returns negative errno on error, or zero on success.
|
|
*/
|
|
static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green,
|
|
unsigned blue, unsigned transp,
|
|
struct fb_info *info)
|
|
{
|
|
struct pm2fb_par *par = info->par;
|
|
|
|
if (regno >= info->cmap.len) /* no. of hw registers */
|
|
return 1;
|
|
/*
|
|
* Program hardware... do anything you want with transp
|
|
*/
|
|
|
|
/* 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
|
|
* cmap[X] is programmed to
|
|
* (X << red.offset) | (X << green.offset) | (X << blue.offset)
|
|
* RAMDAC[X] is programmed to (red, green, blue)
|
|
*
|
|
* Pseudocolor:
|
|
* uses offset = 0 && length = DAC register width.
|
|
* var->{color}.offset is 0
|
|
* var->{color}.length contains widht of DAC
|
|
* cmap is not used
|
|
* DAC[X] is programmed to (red, green, blue)
|
|
* Truecolor:
|
|
* does not use RAMDAC (usually has 3 of them).
|
|
* var->{color}.offset contains start of bitfield
|
|
* var->{color}.length contains length of bitfield
|
|
* cmap is programmed to
|
|
* (red << red.offset) | (green << green.offset) |
|
|
* (blue << blue.offset) | (transp << transp.offset)
|
|
* RAMDAC does not exist
|
|
*/
|
|
#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
|
|
switch (info->fix.visual) {
|
|
case FB_VISUAL_TRUECOLOR:
|
|
case FB_VISUAL_PSEUDOCOLOR:
|
|
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);
|
|
break;
|
|
case FB_VISUAL_DIRECTCOLOR:
|
|
/* example here assumes 8 bit DAC. Might be different
|
|
* for your hardware */
|
|
red = CNVT_TOHW(red, 8);
|
|
green = CNVT_TOHW(green, 8);
|
|
blue = CNVT_TOHW(blue, 8);
|
|
/* hey, there is bug in transp handling... */
|
|
transp = CNVT_TOHW(transp, 8);
|
|
break;
|
|
}
|
|
#undef CNVT_TOHW
|
|
/* Truecolor has hardware independent palette */
|
|
if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
|
|
u32 v;
|
|
|
|
if (regno >= 16)
|
|
return 1;
|
|
|
|
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 24:
|
|
case 32:
|
|
par->palette[regno] = v;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
|
|
set_color(par, regno, red, green, blue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pm2fb_pan_display - Pans the display.
|
|
* @var: frame buffer variable screen structure
|
|
* @info: frame buffer structure that represents a single frame buffer
|
|
*
|
|
* Pan (or wrap, depending on the `vmode' field) the display using the
|
|
* `xoffset' and `yoffset' fields of the `var' structure.
|
|
* If the values don't fit, return -EINVAL.
|
|
*
|
|
* Returns negative errno on error, or zero on success.
|
|
*
|
|
*/
|
|
static int pm2fb_pan_display(struct fb_var_screeninfo *var,
|
|
struct fb_info *info)
|
|
{
|
|
struct pm2fb_par *p = info->par;
|
|
u32 base;
|
|
u32 depth;
|
|
u32 xres;
|
|
|
|
xres = (var->xres + 31) & ~31;
|
|
depth = (var->bits_per_pixel + 7) & ~7;
|
|
depth = (depth > 32) ? 32 : depth;
|
|
base = to3264(var->yoffset * xres + var->xoffset, depth, 1);
|
|
WAIT_FIFO(p, 1);
|
|
pm2_WR(p, PM2R_SCREEN_BASE, base);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pm2fb_blank - Blanks the display.
|
|
* @blank_mode: the blank mode we want.
|
|
* @info: frame buffer structure that represents a single frame buffer
|
|
*
|
|
* Blank the screen if blank_mode != 0, else unblank. 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
|
|
*
|
|
* Returns negative errno on error, or zero on success.
|
|
*
|
|
*/
|
|
static int pm2fb_blank(int blank_mode, struct fb_info *info)
|
|
{
|
|
struct pm2fb_par *par = info->par;
|
|
u32 video = par->video;
|
|
|
|
DPRINTK("blank_mode %d\n", blank_mode);
|
|
|
|
switch (blank_mode) {
|
|
case FB_BLANK_UNBLANK:
|
|
/* Screen: On */
|
|
video |= PM2F_VIDEO_ENABLE;
|
|
break;
|
|
case FB_BLANK_NORMAL:
|
|
/* Screen: Off */
|
|
video &= ~PM2F_VIDEO_ENABLE;
|
|
break;
|
|
case FB_BLANK_VSYNC_SUSPEND:
|
|
/* VSync: Off */
|
|
video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW );
|
|
break;
|
|
case FB_BLANK_HSYNC_SUSPEND:
|
|
/* HSync: Off */
|
|
video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW );
|
|
break;
|
|
case FB_BLANK_POWERDOWN:
|
|
/* HSync: Off, VSync: Off */
|
|
video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK| PM2F_BLANK_LOW);
|
|
break;
|
|
}
|
|
set_video(par, video);
|
|
return 0;
|
|
}
|
|
|
|
/* ------------ Hardware Independent Functions ------------ */
|
|
|
|
/*
|
|
* Frame buffer operations
|
|
*/
|
|
|
|
static struct fb_ops pm2fb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = pm2fb_check_var,
|
|
.fb_set_par = pm2fb_set_par,
|
|
.fb_setcolreg = pm2fb_setcolreg,
|
|
.fb_blank = pm2fb_blank,
|
|
.fb_pan_display = pm2fb_pan_display,
|
|
.fb_fillrect = cfb_fillrect,
|
|
.fb_copyarea = cfb_copyarea,
|
|
.fb_imageblit = cfb_imageblit,
|
|
};
|
|
|
|
/*
|
|
* PCI stuff
|
|
*/
|
|
|
|
|
|
/**
|
|
* Device initialisation
|
|
*
|
|
* Initialise and allocate resource for PCI device.
|
|
*
|
|
* @param pdev PCI device.
|
|
* @param id PCI device ID.
|
|
*/
|
|
static int __devinit pm2fb_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct pm2fb_par *default_par;
|
|
struct fb_info *info;
|
|
int err, err_retval = -ENXIO;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if ( err ) {
|
|
printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev);
|
|
if ( !info )
|
|
return -ENOMEM;
|
|
default_par = info->par;
|
|
|
|
switch (pdev->device) {
|
|
case PCI_DEVICE_ID_TI_TVP4020:
|
|
strcpy(pm2fb_fix.id, "TVP4020");
|
|
default_par->type = PM2_TYPE_PERMEDIA2;
|
|
break;
|
|
case PCI_DEVICE_ID_3DLABS_PERMEDIA2:
|
|
strcpy(pm2fb_fix.id, "Permedia2");
|
|
default_par->type = PM2_TYPE_PERMEDIA2;
|
|
break;
|
|
case PCI_DEVICE_ID_3DLABS_PERMEDIA2V:
|
|
strcpy(pm2fb_fix.id, "Permedia2v");
|
|
default_par->type = PM2_TYPE_PERMEDIA2V;
|
|
break;
|
|
}
|
|
|
|
pm2fb_fix.mmio_start = pci_resource_start(pdev, 0);
|
|
pm2fb_fix.mmio_len = PM2_REGS_SIZE;
|
|
|
|
#if defined(__BIG_ENDIAN)
|
|
/*
|
|
* PM2 has a 64k register file, mapped twice in 128k. Lower
|
|
* map is little-endian, upper map is big-endian.
|
|
*/
|
|
pm2fb_fix.mmio_start += PM2_REGS_SIZE;
|
|
DPRINTK("Adjusting register base for big-endian.\n");
|
|
#endif
|
|
DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start);
|
|
|
|
/* Registers - request region and map it. */
|
|
if ( !request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len,
|
|
"pm2fb regbase") ) {
|
|
printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n");
|
|
goto err_exit_neither;
|
|
}
|
|
default_par->v_regs =
|
|
ioremap_nocache(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
|
|
if ( !default_par->v_regs ) {
|
|
printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n",
|
|
pm2fb_fix.id);
|
|
release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
|
|
goto err_exit_neither;
|
|
}
|
|
|
|
/* Stash away memory register info for use when we reset the board */
|
|
default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL);
|
|
default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS);
|
|
default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG);
|
|
DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n",
|
|
default_par->mem_control, default_par->boot_address,
|
|
default_par->mem_config);
|
|
|
|
if(default_par->mem_control == 0 &&
|
|
default_par->boot_address == 0x31 &&
|
|
default_par->mem_config == 0x259fffff &&
|
|
pdev->subsystem_vendor == 0x1048 &&
|
|
pdev->subsystem_device == 0x0a31) {
|
|
DPRINTK("subsystem_vendor: %04x, subsystem_device: %04x\n",
|
|
pdev->subsystem_vendor, pdev->subsystem_device);
|
|
DPRINTK("We have not been initialized by VGA BIOS "
|
|
"and are running on an Elsa Winner 2000 Office\n");
|
|
DPRINTK("Initializing card timings manually...\n");
|
|
default_par->mem_control=0;
|
|
default_par->boot_address=0x20;
|
|
default_par->mem_config=0xe6002021;
|
|
default_par->memclock=100000;
|
|
}
|
|
|
|
/* Now work out how big lfb is going to be. */
|
|
switch(default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) {
|
|
case PM2F_MEM_BANKS_1:
|
|
default_par->fb_size=0x200000;
|
|
break;
|
|
case PM2F_MEM_BANKS_2:
|
|
default_par->fb_size=0x400000;
|
|
break;
|
|
case PM2F_MEM_BANKS_3:
|
|
default_par->fb_size=0x600000;
|
|
break;
|
|
case PM2F_MEM_BANKS_4:
|
|
default_par->fb_size=0x800000;
|
|
break;
|
|
}
|
|
default_par->memclock = CVPPC_MEMCLOCK;
|
|
pm2fb_fix.smem_start = pci_resource_start(pdev, 1);
|
|
pm2fb_fix.smem_len = default_par->fb_size;
|
|
|
|
/* Linear frame buffer - request region and map it. */
|
|
if ( !request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len,
|
|
"pm2fb smem") ) {
|
|
printk(KERN_WARNING "pm2fb: Can't reserve smem.\n");
|
|
goto err_exit_mmio;
|
|
}
|
|
info->screen_base = default_par->v_fb =
|
|
ioremap_nocache(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
|
|
if ( !default_par->v_fb ) {
|
|
printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n");
|
|
release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
|
|
goto err_exit_mmio;
|
|
}
|
|
|
|
info->fbops = &pm2fb_ops;
|
|
info->fix = pm2fb_fix;
|
|
info->pseudo_palette = default_par->palette;
|
|
info->flags = FBINFO_DEFAULT |
|
|
FBINFO_HWACCEL_YPAN;
|
|
|
|
if (!mode)
|
|
mode = "640x480@60";
|
|
|
|
err = fb_find_mode(&info->var, info, mode, NULL, 0, NULL, 8);
|
|
if (!err || err == 4)
|
|
info->var = pm2fb_var;
|
|
|
|
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
|
|
goto err_exit_all;
|
|
|
|
if (register_framebuffer(info) < 0)
|
|
goto err_exit_both;
|
|
|
|
printk(KERN_INFO "fb%d: %s frame buffer device, memory = %dK.\n",
|
|
info->node, info->fix.id, default_par->fb_size / 1024);
|
|
|
|
/*
|
|
* Our driver data
|
|
*/
|
|
pci_set_drvdata(pdev, info);
|
|
|
|
return 0;
|
|
|
|
err_exit_all:
|
|
fb_dealloc_cmap(&info->cmap);
|
|
err_exit_both:
|
|
iounmap(info->screen_base);
|
|
release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
|
|
err_exit_mmio:
|
|
iounmap(default_par->v_regs);
|
|
release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
|
|
err_exit_neither:
|
|
framebuffer_release(info);
|
|
return err_retval;
|
|
}
|
|
|
|
/**
|
|
* Device removal.
|
|
*
|
|
* Release all device resources.
|
|
*
|
|
* @param pdev PCI device to clean up.
|
|
*/
|
|
static void __devexit pm2fb_remove(struct pci_dev *pdev)
|
|
{
|
|
struct fb_info* info = pci_get_drvdata(pdev);
|
|
struct fb_fix_screeninfo* fix = &info->fix;
|
|
struct pm2fb_par *par = info->par;
|
|
|
|
unregister_framebuffer(info);
|
|
|
|
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(pdev, NULL);
|
|
kfree(info);
|
|
}
|
|
|
|
static struct pci_device_id pm2fb_id_table[] = {
|
|
{ PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
|
|
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
|
|
0xff0000, 0 },
|
|
{ PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
|
|
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
|
|
0xff0000, 0 },
|
|
{ PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V,
|
|
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
|
|
0xff0000, 0 },
|
|
{ 0, }
|
|
};
|
|
|
|
static struct pci_driver pm2fb_driver = {
|
|
.name = "pm2fb",
|
|
.id_table = pm2fb_id_table,
|
|
.probe = pm2fb_probe,
|
|
.remove = __devexit_p(pm2fb_remove),
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, pm2fb_id_table);
|
|
|
|
|
|
#ifndef MODULE
|
|
/**
|
|
* Parse user speficied options.
|
|
*
|
|
* This is, comma-separated options following `video=pm2fb:'.
|
|
*/
|
|
static int __init pm2fb_setup(char *options)
|
|
{
|
|
char* this_opt;
|
|
|
|
if (!options || !*options)
|
|
return 0;
|
|
|
|
while ((this_opt = strsep(&options, ",")) != NULL) {
|
|
if (!*this_opt)
|
|
continue;
|
|
if(!strcmp(this_opt, "lowhsync")) {
|
|
lowhsync = 1;
|
|
} else if(!strcmp(this_opt, "lowvsync")) {
|
|
lowvsync = 1;
|
|
} else {
|
|
mode = this_opt;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int __init pm2fb_init(void)
|
|
{
|
|
#ifndef MODULE
|
|
char *option = NULL;
|
|
|
|
if (fb_get_options("pm2fb", &option))
|
|
return -ENODEV;
|
|
pm2fb_setup(option);
|
|
#endif
|
|
|
|
return pci_register_driver(&pm2fb_driver);
|
|
}
|
|
|
|
module_init(pm2fb_init);
|
|
|
|
#ifdef MODULE
|
|
/*
|
|
* Cleanup
|
|
*/
|
|
|
|
static void __exit pm2fb_exit(void)
|
|
{
|
|
pci_unregister_driver(&pm2fb_driver);
|
|
}
|
|
#endif
|
|
|
|
#ifdef MODULE
|
|
module_exit(pm2fb_exit);
|
|
|
|
module_param(mode, charp, 0);
|
|
MODULE_PARM_DESC(mode, "Preferred video mode e.g. '648x480-8@60'");
|
|
module_param(lowhsync, bool, 0);
|
|
MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode");
|
|
module_param(lowvsync, bool, 0);
|
|
MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode");
|
|
|
|
MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>");
|
|
MODULE_DESCRIPTION("Permedia2 framebuffer device driver");
|
|
MODULE_LICENSE("GPL");
|
|
#endif
|