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kernel-ark/drivers/video/riva/fbdev.c
Richard Purdie 599a52d126 backlight: Separate backlight properties from backlight ops pointers 
Per device data such as brightness belongs to the indivdual device
and should therefore be separate from the the backlight operation
function pointers. This patch splits the two types of data and
allows simplifcation of some code.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-20 09:26:53 +00:00

2231 lines
58 KiB
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/*
* linux/drivers/video/riva/fbdev.c - nVidia RIVA 128/TNT/TNT2 fb driver
*
* Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
*
* Copyright 1999-2000 Jeff Garzik
*
* Contributors:
*
* Ani Joshi: Lots of debugging and cleanup work, really helped
* get the driver going
*
* Ferenc Bakonyi: Bug fixes, cleanup, modularization
*
* Jindrich Makovicka: Accel code help, hw cursor, mtrr
*
* Paul Richards: Bug fixes, updates
*
* Initial template from skeletonfb.c, created 28 Dec 1997 by Geert Uytterhoeven
* Includes riva_hw.c from nVidia, see copyright below.
* KGI code provided the basis for state storage, init, and mode switching.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
* Known bugs and issues:
* restoring text mode fails
* doublescan modes are broken
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/backlight.h>
#include <linux/bitrev.h>
#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif
#ifdef CONFIG_PPC_OF
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#endif
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/machdep.h>
#include <asm/backlight.h>
#endif
#include "rivafb.h"
#include "nvreg.h"
#ifndef CONFIG_PCI /* sanity check */
#error This driver requires PCI support.
#endif
/* version number of this driver */
#define RIVAFB_VERSION "0.9.5b"
/* ------------------------------------------------------------------------- *
*
* various helpful macros and constants
*
* ------------------------------------------------------------------------- */
#ifdef CONFIG_FB_RIVA_DEBUG
#define NVTRACE printk
#else
#define NVTRACE if(0) printk
#endif
#define NVTRACE_ENTER(...) NVTRACE("%s START\n", __FUNCTION__)
#define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __FUNCTION__)
#ifdef CONFIG_FB_RIVA_DEBUG
#define assert(expr) \
if(!(expr)) { \
printk( "Assertion failed! %s,%s,%s,line=%d\n",\
#expr,__FILE__,__FUNCTION__,__LINE__); \
BUG(); \
}
#else
#define assert(expr)
#endif
#define PFX "rivafb: "
/* macro that allows you to set overflow bits */
#define SetBitField(value,from,to) SetBF(to,GetBF(value,from))
#define SetBit(n) (1<<(n))
#define Set8Bits(value) ((value)&0xff)
/* HW cursor parameters */
#define MAX_CURS 32
/* ------------------------------------------------------------------------- *
*
* prototypes
*
* ------------------------------------------------------------------------- */
static int rivafb_blank(int blank, struct fb_info *info);
/* ------------------------------------------------------------------------- *
*
* card identification
*
* ------------------------------------------------------------------------- */
static struct pci_device_id rivafb_pci_tbl[] = {
{ PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
// NF2/IGP version, GeForce 4 MX, NV18
{ PCI_VENDOR_ID_NVIDIA, 0x01f0,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0, } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);
/* ------------------------------------------------------------------------- *
*
* global variables
*
* ------------------------------------------------------------------------- */
/* command line data, set in rivafb_setup() */
static int flatpanel __devinitdata = -1; /* Autodetect later */
static int forceCRTC __devinitdata = -1;
static int noaccel __devinitdata = 0;
#ifdef CONFIG_MTRR
static int nomtrr __devinitdata = 0;
#endif
static char *mode_option __devinitdata = NULL;
static int strictmode = 0;
static struct fb_fix_screeninfo __devinitdata rivafb_fix = {
.type = FB_TYPE_PACKED_PIXELS,
.xpanstep = 1,
.ypanstep = 1,
};
static struct fb_var_screeninfo __devinitdata rivafb_default_var = {
.xres = 640,
.yres = 480,
.xres_virtual = 640,
.yres_virtual = 480,
.bits_per_pixel = 8,
.red = {0, 8, 0},
.green = {0, 8, 0},
.blue = {0, 8, 0},
.transp = {0, 0, 0},
.activate = FB_ACTIVATE_NOW,
.height = -1,
.width = -1,
.pixclock = 39721,
.left_margin = 40,
.right_margin = 24,
.upper_margin = 32,
.lower_margin = 11,
.hsync_len = 96,
.vsync_len = 2,
.vmode = FB_VMODE_NONINTERLACED
};
/* from GGI */
static const struct riva_regs reg_template = {
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x01, 0x0F, 0x00, 0x00},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */
0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */
0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, /* 0x40 */
},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */
0xFF},
{0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */
0xEB /* MISC */
};
/*
* Backlight control
*/
#ifdef CONFIG_FB_RIVA_BACKLIGHT
/* We do not have any information about which values are allowed, thus
* we used safe values.
*/
#define MIN_LEVEL 0x158
#define MAX_LEVEL 0x534
#define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
static struct backlight_properties riva_bl_data;
static int riva_bl_get_level_brightness(struct riva_par *par,
int level)
{
struct fb_info *info = pci_get_drvdata(par->pdev);
int nlevel;
/* Get and convert the value */
/* No locking on bl_curve since accessing a single value */
nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
if (nlevel < 0)
nlevel = 0;
else if (nlevel < MIN_LEVEL)
nlevel = MIN_LEVEL;
else if (nlevel > MAX_LEVEL)
nlevel = MAX_LEVEL;
return nlevel;
}
static int riva_bl_update_status(struct backlight_device *bd)
{
struct riva_par *par = class_get_devdata(&bd->class_dev);
U032 tmp_pcrt, tmp_pmc;
int level;
if (bd->props.power != FB_BLANK_UNBLANK ||
bd->props.fb_blank != FB_BLANK_UNBLANK)
level = 0;
else
level = bd->props.brightness;
tmp_pmc = par->riva.PMC[0x10F0/4] & 0x0000FFFF;
tmp_pcrt = par->riva.PCRTC0[0x081C/4] & 0xFFFFFFFC;
if(level > 0) {
tmp_pcrt |= 0x1;
tmp_pmc |= (1 << 31); /* backlight bit */
tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
}
par->riva.PCRTC0[0x081C/4] = tmp_pcrt;
par->riva.PMC[0x10F0/4] = tmp_pmc;
return 0;
}
static int riva_bl_get_brightness(struct backlight_device *bd)
{
return bd->props.brightness;
}
static struct backlight_ops riva_bl_ops = {
.get_brightness = riva_bl_get_brightness,
.update_status = riva_bl_update_status,
};
static void riva_bl_init(struct riva_par *par)
{
struct fb_info *info = pci_get_drvdata(par->pdev);
struct backlight_device *bd;
char name[12];
if (!par->FlatPanel)
return;
#ifdef CONFIG_PMAC_BACKLIGHT
if (!machine_is(powermac) ||
!pmac_has_backlight_type("mnca"))
return;
#endif
snprintf(name, sizeof(name), "rivabl%d", info->node);
bd = backlight_device_register(name, info->dev, par, &riva_bl_ops);
if (IS_ERR(bd)) {
info->bl_dev = NULL;
printk(KERN_WARNING "riva: Backlight registration failed\n");
goto error;
}
info->bl_dev = bd;
fb_bl_default_curve(info, 0,
MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
FB_BACKLIGHT_MAX);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = riva_bl_data.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
printk("riva: Backlight initialized (%s)\n", name);
return;
error:
return;
}
static void riva_bl_exit(struct fb_info *info)
{
struct backlight_device *bd = info->bl_dev;
backlight_device_unregister(bd);
printk("riva: Backlight unloaded\n");
}
#else
static inline void riva_bl_init(struct riva_par *par) {}
static inline void riva_bl_exit(struct fb_info *info) {}
#endif /* CONFIG_FB_RIVA_BACKLIGHT */
/* ------------------------------------------------------------------------- *
*
* MMIO access macros
*
* ------------------------------------------------------------------------- */
static inline void CRTCout(struct riva_par *par, unsigned char index,
unsigned char val)
{
VGA_WR08(par->riva.PCIO, 0x3d4, index);
VGA_WR08(par->riva.PCIO, 0x3d5, val);
}
static inline unsigned char CRTCin(struct riva_par *par,
unsigned char index)
{
VGA_WR08(par->riva.PCIO, 0x3d4, index);
return (VGA_RD08(par->riva.PCIO, 0x3d5));
}
static inline void GRAout(struct riva_par *par, unsigned char index,
unsigned char val)
{
VGA_WR08(par->riva.PVIO, 0x3ce, index);
VGA_WR08(par->riva.PVIO, 0x3cf, val);
}
static inline unsigned char GRAin(struct riva_par *par,
unsigned char index)
{
VGA_WR08(par->riva.PVIO, 0x3ce, index);
return (VGA_RD08(par->riva.PVIO, 0x3cf));
}
static inline void SEQout(struct riva_par *par, unsigned char index,
unsigned char val)
{
VGA_WR08(par->riva.PVIO, 0x3c4, index);
VGA_WR08(par->riva.PVIO, 0x3c5, val);
}
static inline unsigned char SEQin(struct riva_par *par,
unsigned char index)
{
VGA_WR08(par->riva.PVIO, 0x3c4, index);
return (VGA_RD08(par->riva.PVIO, 0x3c5));
}
static inline void ATTRout(struct riva_par *par, unsigned char index,
unsigned char val)
{
VGA_WR08(par->riva.PCIO, 0x3c0, index);
VGA_WR08(par->riva.PCIO, 0x3c0, val);
}
static inline unsigned char ATTRin(struct riva_par *par,
unsigned char index)
{
VGA_WR08(par->riva.PCIO, 0x3c0, index);
return (VGA_RD08(par->riva.PCIO, 0x3c1));
}
static inline void MISCout(struct riva_par *par, unsigned char val)
{
VGA_WR08(par->riva.PVIO, 0x3c2, val);
}
static inline unsigned char MISCin(struct riva_par *par)
{
return (VGA_RD08(par->riva.PVIO, 0x3cc));
}
static inline void reverse_order(u32 *l)
{
u8 *a = (u8 *)l;
a[0] = bitrev8(a[0]);
a[1] = bitrev8(a[1]);
a[2] = bitrev8(a[2]);
a[3] = bitrev8(a[3]);
}
/* ------------------------------------------------------------------------- *
*
* cursor stuff
*
* ------------------------------------------------------------------------- */
/**
* rivafb_load_cursor_image - load cursor image to hardware
* @data: address to monochrome bitmap (1 = foreground color, 0 = background)
* @par: pointer to private data
* @w: width of cursor image in pixels
* @h: height of cursor image in scanlines
* @bg: background color (ARGB1555) - alpha bit determines opacity
* @fg: foreground color (ARGB1555)
*
* DESCRIPTiON:
* Loads cursor image based on a monochrome source and mask bitmap. The
* image bits determines the color of the pixel, 0 for background, 1 for
* foreground. Only the affected region (as determined by @w and @h
* parameters) will be updated.
*
* CALLED FROM:
* rivafb_cursor()
*/
static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
u16 bg, u16 fg, u32 w, u32 h)
{
int i, j, k = 0;
u32 b, tmp;
u32 *data = (u32 *)data8;
bg = le16_to_cpu(bg);
fg = le16_to_cpu(fg);
w = (w + 1) & ~1;
for (i = 0; i < h; i++) {
b = *data++;
reverse_order(&b);
for (j = 0; j < w/2; j++) {
tmp = 0;
#if defined (__BIG_ENDIAN)
tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
b <<= 1;
tmp |= (b & (1 << 31)) ? fg : bg;
b <<= 1;
#else
tmp = (b & 1) ? fg : bg;
b >>= 1;
tmp |= (b & 1) ? fg << 16 : bg << 16;
b >>= 1;
#endif
writel(tmp, &par->riva.CURSOR[k++]);
}
k += (MAX_CURS - w)/2;
}
}
/* ------------------------------------------------------------------------- *
*
* general utility functions
*
* ------------------------------------------------------------------------- */
/**
* riva_wclut - set CLUT entry
* @chip: pointer to RIVA_HW_INST object
* @regnum: register number
* @red: red component
* @green: green component
* @blue: blue component
*
* DESCRIPTION:
* Sets color register @regnum.
*
* CALLED FROM:
* rivafb_setcolreg()
*/
static void riva_wclut(RIVA_HW_INST *chip,
unsigned char regnum, unsigned char red,
unsigned char green, unsigned char blue)
{
VGA_WR08(chip->PDIO, 0x3c8, regnum);
VGA_WR08(chip->PDIO, 0x3c9, red);
VGA_WR08(chip->PDIO, 0x3c9, green);
VGA_WR08(chip->PDIO, 0x3c9, blue);
}
/**
* riva_rclut - read fromCLUT register
* @chip: pointer to RIVA_HW_INST object
* @regnum: register number
* @red: red component
* @green: green component
* @blue: blue component
*
* DESCRIPTION:
* Reads red, green, and blue from color register @regnum.
*
* CALLED FROM:
* rivafb_setcolreg()
*/
static void riva_rclut(RIVA_HW_INST *chip,
unsigned char regnum, unsigned char *red,
unsigned char *green, unsigned char *blue)
{
VGA_WR08(chip->PDIO, 0x3c7, regnum);
*red = VGA_RD08(chip->PDIO, 0x3c9);
*green = VGA_RD08(chip->PDIO, 0x3c9);
*blue = VGA_RD08(chip->PDIO, 0x3c9);
}
/**
* riva_save_state - saves current chip state
* @par: pointer to riva_par object containing info for current riva board
* @regs: pointer to riva_regs object
*
* DESCRIPTION:
* Saves current chip state to @regs.
*
* CALLED FROM:
* rivafb_probe()
*/
/* from GGI */
static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
{
int i;
NVTRACE_ENTER();
par->riva.LockUnlock(&par->riva, 0);
par->riva.UnloadStateExt(&par->riva, &regs->ext);
regs->misc_output = MISCin(par);
for (i = 0; i < NUM_CRT_REGS; i++)
regs->crtc[i] = CRTCin(par, i);
for (i = 0; i < NUM_ATC_REGS; i++)
regs->attr[i] = ATTRin(par, i);
for (i = 0; i < NUM_GRC_REGS; i++)
regs->gra[i] = GRAin(par, i);
for (i = 0; i < NUM_SEQ_REGS; i++)
regs->seq[i] = SEQin(par, i);
NVTRACE_LEAVE();
}
/**
* riva_load_state - loads current chip state
* @par: pointer to riva_par object containing info for current riva board
* @regs: pointer to riva_regs object
*
* DESCRIPTION:
* Loads chip state from @regs.
*
* CALLED FROM:
* riva_load_video_mode()
* rivafb_probe()
* rivafb_remove()
*/
/* from GGI */
static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
{
RIVA_HW_STATE *state = &regs->ext;
int i;
NVTRACE_ENTER();
CRTCout(par, 0x11, 0x00);
par->riva.LockUnlock(&par->riva, 0);
par->riva.LoadStateExt(&par->riva, state);
MISCout(par, regs->misc_output);
for (i = 0; i < NUM_CRT_REGS; i++) {
switch (i) {
case 0x19:
case 0x20 ... 0x40:
break;
default:
CRTCout(par, i, regs->crtc[i]);
}
}
for (i = 0; i < NUM_ATC_REGS; i++)
ATTRout(par, i, regs->attr[i]);
for (i = 0; i < NUM_GRC_REGS; i++)
GRAout(par, i, regs->gra[i]);
for (i = 0; i < NUM_SEQ_REGS; i++)
SEQout(par, i, regs->seq[i]);
NVTRACE_LEAVE();
}
/**
* riva_load_video_mode - calculate timings
* @info: pointer to fb_info object containing info for current riva board
*
* DESCRIPTION:
* Calculate some timings and then send em off to riva_load_state().
*
* CALLED FROM:
* rivafb_set_par()
*/
static int riva_load_video_mode(struct fb_info *info)
{
int bpp, width, hDisplaySize, hDisplay, hStart,
hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
int rc;
struct riva_par *par = info->par;
struct riva_regs newmode;
NVTRACE_ENTER();
/* time to calculate */
rivafb_blank(FB_BLANK_NORMAL, info);
bpp = info->var.bits_per_pixel;
if (bpp == 16 && info->var.green.length == 5)
bpp = 15;
width = info->var.xres_virtual;
hDisplaySize = info->var.xres;
hDisplay = (hDisplaySize / 8) - 1;
hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
hEnd = (hDisplaySize + info->var.right_margin +
info->var.hsync_len) / 8 - 1;
hTotal = (hDisplaySize + info->var.right_margin +
info->var.hsync_len + info->var.left_margin) / 8 - 5;
hBlankStart = hDisplay;
hBlankEnd = hTotal + 4;
height = info->var.yres_virtual;
vDisplay = info->var.yres - 1;
vStart = info->var.yres + info->var.lower_margin - 1;
vEnd = info->var.yres + info->var.lower_margin +
info->var.vsync_len - 1;
vTotal = info->var.yres + info->var.lower_margin +
info->var.vsync_len + info->var.upper_margin + 2;
vBlankStart = vDisplay;
vBlankEnd = vTotal + 1;
dotClock = 1000000000 / info->var.pixclock;
memcpy(&newmode, &reg_template, sizeof(struct riva_regs));
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
vTotal |= 1;
if (par->FlatPanel) {
vStart = vTotal - 3;
vEnd = vTotal - 2;
vBlankStart = vStart;
hStart = hTotal - 3;
hEnd = hTotal - 2;
hBlankEnd = hTotal + 4;
}
newmode.crtc[0x0] = Set8Bits (hTotal);
newmode.crtc[0x1] = Set8Bits (hDisplay);
newmode.crtc[0x2] = Set8Bits (hBlankStart);
newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
newmode.crtc[0x4] = Set8Bits (hStart);
newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
| SetBitField (hEnd, 4: 0, 4:0);
newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
| SetBitField (vDisplay, 8: 8, 1:1)
| SetBitField (vStart, 8: 8, 2:2)
| SetBitField (vBlankStart, 8: 8, 3:3)
| SetBit (4)
| SetBitField (vTotal, 9: 9, 5:5)
| SetBitField (vDisplay, 9: 9, 6:6)
| SetBitField (vStart, 9: 9, 7:7);
newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
| SetBit (6);
newmode.crtc[0x10] = Set8Bits (vStart);
newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
| SetBit (5);
newmode.crtc[0x12] = Set8Bits (vDisplay);
newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
newmode.crtc[0x15] = Set8Bits (vBlankStart);
newmode.crtc[0x16] = Set8Bits (vBlankEnd);
newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
| SetBitField(vBlankStart,10:10,3:3)
| SetBitField(vStart,10:10,2:2)
| SetBitField(vDisplay,10:10,1:1)
| SetBitField(vTotal,10:10,0:0);
newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
| SetBitField(hDisplay,8:8,1:1)
| SetBitField(hBlankStart,8:8,2:2)
| SetBitField(hStart,8:8,3:3);
newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
| SetBitField(vDisplay,11:11,2:2)
| SetBitField(vStart,11:11,4:4)
| SetBitField(vBlankStart,11:11,6:6);
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
int tmp = (hTotal >> 1) & ~1;
newmode.ext.interlace = Set8Bits(tmp);
newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
} else
newmode.ext.interlace = 0xff; /* interlace off */
if (par->riva.Architecture >= NV_ARCH_10)
par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
newmode.misc_output &= ~0x40;
else
newmode.misc_output |= 0x40;
if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
newmode.misc_output &= ~0x80;
else
newmode.misc_output |= 0x80;
rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
hDisplaySize, height, dotClock);
if (rc)
goto out;
newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
0xfff000ff;
if (par->FlatPanel == 1) {
newmode.ext.pixel |= (1 << 7);
newmode.ext.scale |= (1 << 8);
}
if (par->SecondCRTC) {
newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
~0x00001000;
newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
0x00001000;
newmode.ext.crtcOwner = 3;
newmode.ext.pllsel |= 0x20000800;
newmode.ext.vpll2 = newmode.ext.vpll;
} else if (par->riva.twoHeads) {
newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
0x00001000;
newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
~0x00001000;
newmode.ext.crtcOwner = 0;
newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
}
if (par->FlatPanel == 1) {
newmode.ext.pixel |= (1 << 7);
newmode.ext.scale |= (1 << 8);
}
newmode.ext.cursorConfig = 0x02000100;
par->current_state = newmode;
riva_load_state(par, &par->current_state);
par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
out:
rivafb_blank(FB_BLANK_UNBLANK, info);
NVTRACE_LEAVE();
return rc;
}
static void riva_update_var(struct fb_var_screeninfo *var,
const struct fb_videomode *modedb)
{
NVTRACE_ENTER();
var->xres = var->xres_virtual = modedb->xres;
var->yres = modedb->yres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
var->xoffset = var->yoffset = 0;
var->pixclock = modedb->pixclock;
var->left_margin = modedb->left_margin;
var->right_margin = modedb->right_margin;
var->upper_margin = modedb->upper_margin;
var->lower_margin = modedb->lower_margin;
var->hsync_len = modedb->hsync_len;
var->vsync_len = modedb->vsync_len;
var->sync = modedb->sync;
var->vmode = modedb->vmode;
NVTRACE_LEAVE();
}
/**
* rivafb_do_maximize -
* @info: pointer to fb_info object containing info for current riva board
* @var:
* @nom:
* @den:
*
* DESCRIPTION:
* .
*
* RETURNS:
* -EINVAL on failure, 0 on success
*
*
* CALLED FROM:
* rivafb_check_var()
*/
static int rivafb_do_maximize(struct fb_info *info,
struct fb_var_screeninfo *var,
int nom, int den)
{
static struct {
int xres, yres;
} modes[] = {
{1600, 1280},
{1280, 1024},
{1024, 768},
{800, 600},
{640, 480},
{-1, -1}
};
int i;
NVTRACE_ENTER();
/* use highest possible virtual resolution */
if (var->xres_virtual == -1 && var->yres_virtual == -1) {
printk(KERN_WARNING PFX
"using maximum available virtual resolution\n");
for (i = 0; modes[i].xres != -1; i++) {
if (modes[i].xres * nom / den * modes[i].yres <
info->fix.smem_len)
break;
}
if (modes[i].xres == -1) {
printk(KERN_ERR PFX
"could not find a virtual resolution that fits into video memory!!\n");
NVTRACE("EXIT - EINVAL error\n");
return -EINVAL;
}
var->xres_virtual = modes[i].xres;
var->yres_virtual = modes[i].yres;
printk(KERN_INFO PFX
"virtual resolution set to maximum of %dx%d\n",
var->xres_virtual, var->yres_virtual);
} else if (var->xres_virtual == -1) {
var->xres_virtual = (info->fix.smem_len * den /
(nom * var->yres_virtual)) & ~15;
printk(KERN_WARNING PFX
"setting virtual X resolution to %d\n", var->xres_virtual);
} else if (var->yres_virtual == -1) {
var->xres_virtual = (var->xres_virtual + 15) & ~15;
var->yres_virtual = info->fix.smem_len * den /
(nom * var->xres_virtual);
printk(KERN_WARNING PFX
"setting virtual Y resolution to %d\n", var->yres_virtual);
} else {
var->xres_virtual = (var->xres_virtual + 15) & ~15;
if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
printk(KERN_ERR PFX
"mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
var->xres, var->yres, var->bits_per_pixel);
NVTRACE("EXIT - EINVAL error\n");
return -EINVAL;
}
}
if (var->xres_virtual * nom / den >= 8192) {
printk(KERN_WARNING PFX
"virtual X resolution (%d) is too high, lowering to %d\n",
var->xres_virtual, 8192 * den / nom - 16);
var->xres_virtual = 8192 * den / nom - 16;
}
if (var->xres_virtual < var->xres) {
printk(KERN_ERR PFX
"virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
return -EINVAL;
}
if (var->yres_virtual < var->yres) {
printk(KERN_ERR PFX
"virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
return -EINVAL;
}
if (var->yres_virtual > 0x7fff/nom)
var->yres_virtual = 0x7fff/nom;
if (var->xres_virtual > 0x7fff/nom)
var->xres_virtual = 0x7fff/nom;
NVTRACE_LEAVE();
return 0;
}
static void
riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
{
RIVA_FIFO_FREE(par->riva, Patt, 4);
NV_WR32(&par->riva.Patt->Color0, 0, clr0);
NV_WR32(&par->riva.Patt->Color1, 0, clr1);
NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
}
/* acceleration routines */
static inline void wait_for_idle(struct riva_par *par)
{
while (par->riva.Busy(&par->riva));
}
/*
* Set ROP. Translate X rop into ROP3. Internal routine.
*/
static void
riva_set_rop_solid(struct riva_par *par, int rop)
{
riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
RIVA_FIFO_FREE(par->riva, Rop, 1);
NV_WR32(&par->riva.Rop->Rop3, 0, rop);
}
static void riva_setup_accel(struct fb_info *info)
{
struct riva_par *par = info->par;
RIVA_FIFO_FREE(par->riva, Clip, 2);
NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
NV_WR32(&par->riva.Clip->WidthHeight, 0,
(info->var.xres_virtual & 0xffff) |
(info->var.yres_virtual << 16));
riva_set_rop_solid(par, 0xcc);
wait_for_idle(par);
}
/**
* riva_get_cmap_len - query current color map length
* @var: standard kernel fb changeable data
*
* DESCRIPTION:
* Get current color map length.
*
* RETURNS:
* Length of color map
*
* CALLED FROM:
* rivafb_setcolreg()
*/
static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
{
int rc = 256; /* reasonable default */
switch (var->green.length) {
case 8:
rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
break;
case 5:
rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
break;
case 6:
rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
break;
default:
/* should not occur */
break;
}
return rc;
}
/* ------------------------------------------------------------------------- *
*
* framebuffer operations
*
* ------------------------------------------------------------------------- */
static int rivafb_open(struct fb_info *info, int user)
{
struct riva_par *par = info->par;
NVTRACE_ENTER();
mutex_lock(&par->open_lock);
if (!par->ref_count) {
#ifdef CONFIG_X86
memset(&par->state, 0, sizeof(struct vgastate));
par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
/* save the DAC for Riva128 */
if (par->riva.Architecture == NV_ARCH_03)
par->state.flags |= VGA_SAVE_CMAP;
save_vga(&par->state);
#endif
/* vgaHWunlock() + riva unlock (0x7F) */
CRTCout(par, 0x11, 0xFF);
par->riva.LockUnlock(&par->riva, 0);
riva_save_state(par, &par->initial_state);
}
par->ref_count++;
mutex_unlock(&par->open_lock);
NVTRACE_LEAVE();
return 0;
}
static int rivafb_release(struct fb_info *info, int user)
{
struct riva_par *par = info->par;
NVTRACE_ENTER();
mutex_lock(&par->open_lock);
if (!par->ref_count) {
mutex_unlock(&par->open_lock);
return -EINVAL;
}
if (par->ref_count == 1) {
par->riva.LockUnlock(&par->riva, 0);
par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
riva_load_state(par, &par->initial_state);
#ifdef CONFIG_X86
restore_vga(&par->state);
#endif
par->riva.LockUnlock(&par->riva, 1);
}
par->ref_count--;
mutex_unlock(&par->open_lock);
NVTRACE_LEAVE();
return 0;
}
static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
const struct fb_videomode *mode;
struct riva_par *par = info->par;
int nom, den; /* translating from pixels->bytes */
int mode_valid = 0;
NVTRACE_ENTER();
switch (var->bits_per_pixel) {
case 1 ... 8:
var->red.offset = var->green.offset = var->blue.offset = 0;
var->red.length = var->green.length = var->blue.length = 8;
var->bits_per_pixel = 8;
nom = den = 1;
break;
case 9 ... 15:
var->green.length = 5;
/* fall through */
case 16:
var->bits_per_pixel = 16;
/* The Riva128 supports RGB555 only */
if (par->riva.Architecture == NV_ARCH_03)
var->green.length = 5;
if (var->green.length == 5) {
/* 0rrrrrgg gggbbbbb */
var->red.offset = 10;
var->green.offset = 5;
var->blue.offset = 0;
var->red.length = 5;
var->green.length = 5;
var->blue.length = 5;
} else {
/* rrrrrggg gggbbbbb */
var->red.offset = 11;
var->green.offset = 5;
var->blue.offset = 0;
var->red.length = 5;
var->green.length = 6;
var->blue.length = 5;
}
nom = 2;
den = 1;
break;
case 17 ... 32:
var->red.length = var->green.length = var->blue.length = 8;
var->bits_per_pixel = 32;
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
nom = 4;
den = 1;
break;
default:
printk(KERN_ERR PFX
"mode %dx%dx%d rejected...color depth not supported.\n",
var->xres, var->yres, var->bits_per_pixel);
NVTRACE("EXIT, returning -EINVAL\n");
return -EINVAL;
}
if (!strictmode) {
if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
!info->monspecs.dclkmax || !fb_validate_mode(var, info))
mode_valid = 1;
}
/* calculate modeline if supported by monitor */
if (!mode_valid && info->monspecs.gtf) {
if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
mode_valid = 1;
}
if (!mode_valid) {
mode = fb_find_best_mode(var, &info->modelist);
if (mode) {
riva_update_var(var, mode);
mode_valid = 1;
}
}
if (!mode_valid && info->monspecs.modedb_len)
return -EINVAL;
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
if (var->yres_virtual <= var->yres)
var->yres_virtual = -1;
if (rivafb_do_maximize(info, var, nom, den) < 0)
return -EINVAL;
if (var->xoffset < 0)
var->xoffset = 0;
if (var->yoffset < 0)
var->yoffset = 0;
/* truncate xoffset and yoffset to maximum if too high */
if (var->xoffset > var->xres_virtual - var->xres)
var->xoffset = var->xres_virtual - var->xres - 1;
if (var->yoffset > var->yres_virtual - var->yres)
var->yoffset = var->yres_virtual - var->yres - 1;
var->red.msb_right =
var->green.msb_right =
var->blue.msb_right =
var->transp.offset = var->transp.length = var->transp.msb_right = 0;
NVTRACE_LEAVE();
return 0;
}
static int rivafb_set_par(struct fb_info *info)
{
struct riva_par *par = info->par;
int rc = 0;
NVTRACE_ENTER();
/* vgaHWunlock() + riva unlock (0x7F) */
CRTCout(par, 0x11, 0xFF);
par->riva.LockUnlock(&par->riva, 0);
rc = riva_load_video_mode(info);
if (rc)
goto out;
if(!(info->flags & FBINFO_HWACCEL_DISABLED))
riva_setup_accel(info);
par->cursor_reset = 1;
info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
info->fix.visual = (info->var.bits_per_pixel == 8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
if (info->flags & FBINFO_HWACCEL_DISABLED)
info->pixmap.scan_align = 1;
else
info->pixmap.scan_align = 4;
out:
NVTRACE_LEAVE();
return rc;
}
/**
* rivafb_pan_display
* @var: standard kernel fb changeable data
* @con: TODO
* @info: pointer to fb_info object containing info for current riva board
*
* DESCRIPTION:
* 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.
*
* This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
*/
static int rivafb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct riva_par *par = info->par;
unsigned int base;
NVTRACE_ENTER();
base = var->yoffset * info->fix.line_length + var->xoffset;
par->riva.SetStartAddress(&par->riva, base);
NVTRACE_LEAVE();
return 0;
}
static int rivafb_blank(int blank, struct fb_info *info)
{
struct riva_par *par= info->par;
unsigned char tmp, vesa;
tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
NVTRACE_ENTER();
if (blank)
tmp |= 0x20;
switch (blank) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
break;
case FB_BLANK_VSYNC_SUSPEND:
vesa |= 0x80;
break;
case FB_BLANK_HSYNC_SUSPEND:
vesa |= 0x40;
break;
case FB_BLANK_POWERDOWN:
vesa |= 0xc0;
break;
}
SEQout(par, 0x01, tmp);
CRTCout(par, 0x1a, vesa);
NVTRACE_LEAVE();
return 0;
}
/**
* rivafb_setcolreg
* @regno: register index
* @red: red component
* @green: green component
* @blue: blue component
* @transp: transparency
* @info: pointer to fb_info object containing info for current riva board
*
* DESCRIPTION:
* Set a single color register. The values supplied have a 16 bit
* magnitude.
*
* RETURNS:
* Return != 0 for invalid regno.
*
* CALLED FROM:
* fbcmap.c:fb_set_cmap()
*/
static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
{
struct riva_par *par = info->par;
RIVA_HW_INST *chip = &par->riva;
int i;
if (regno >= riva_get_cmap_len(&info->var))
return -EINVAL;
if (info->var.grayscale) {
/* gray = 0.30*R + 0.59*G + 0.11*B */
red = green = blue =
(red * 77 + green * 151 + blue * 28) >> 8;
}
if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
((u32 *) info->pseudo_palette)[regno] =
(regno << info->var.red.offset) |
(regno << info->var.green.offset) |
(regno << info->var.blue.offset);
/*
* The Riva128 2D engine requires color information in
* TrueColor format even if framebuffer is in DirectColor
*/
if (par->riva.Architecture == NV_ARCH_03) {
switch (info->var.bits_per_pixel) {
case 16:
par->palette[regno] = ((red & 0xf800) >> 1) |
((green & 0xf800) >> 6) |
((blue & 0xf800) >> 11);
break;
case 32:
par->palette[regno] = ((red & 0xff00) << 8) |
((green & 0xff00)) |
((blue & 0xff00) >> 8);
break;
}
}
}
switch (info->var.bits_per_pixel) {
case 8:
/* "transparent" stuff is completely ignored. */
riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
break;
case 16:
if (info->var.green.length == 5) {
for (i = 0; i < 8; i++) {
riva_wclut(chip, regno*8+i, red >> 8,
green >> 8, blue >> 8);
}
} else {
u8 r, g, b;
if (regno < 32) {
for (i = 0; i < 8; i++) {
riva_wclut(chip, regno*8+i,
red >> 8, green >> 8,
blue >> 8);
}
}
riva_rclut(chip, regno*4, &r, &g, &b);
for (i = 0; i < 4; i++)
riva_wclut(chip, regno*4+i, r,
green >> 8, b);
}
break;
case 32:
riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
break;
default:
/* do nothing */
break;
}
return 0;
}
/**
* rivafb_fillrect - hardware accelerated color fill function
* @info: pointer to fb_info structure
* @rect: pointer to fb_fillrect structure
*
* DESCRIPTION:
* This function fills up a region of framebuffer memory with a solid
* color with a choice of two different ROP's, copy or invert.
*
* CALLED FROM:
* framebuffer hook
*/
static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
struct riva_par *par = info->par;
u_int color, rop = 0;
if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
cfb_fillrect(info, rect);
return;
}
if (info->var.bits_per_pixel == 8)
color = rect->color;
else {
if (par->riva.Architecture != NV_ARCH_03)
color = ((u32 *)info->pseudo_palette)[rect->color];
else
color = par->palette[rect->color];
}
switch (rect->rop) {
case ROP_XOR:
rop = 0x66;
break;
case ROP_COPY:
default:
rop = 0xCC;
break;
}
riva_set_rop_solid(par, rop);
RIVA_FIFO_FREE(par->riva, Bitmap, 1);
NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
RIVA_FIFO_FREE(par->riva, Bitmap, 2);
NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
(rect->dx << 16) | rect->dy);
mb();
NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
(rect->width << 16) | rect->height);
mb();
riva_set_rop_solid(par, 0xcc);
}
/**
* rivafb_copyarea - hardware accelerated blit function
* @info: pointer to fb_info structure
* @region: pointer to fb_copyarea structure
*
* DESCRIPTION:
* This copies an area of pixels from one location to another
*
* CALLED FROM:
* framebuffer hook
*/
static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
{
struct riva_par *par = info->par;
if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
cfb_copyarea(info, region);
return;
}
RIVA_FIFO_FREE(par->riva, Blt, 3);
NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
(region->sy << 16) | region->sx);
NV_WR32(&par->riva.Blt->TopLeftDst, 0,
(region->dy << 16) | region->dx);
mb();
NV_WR32(&par->riva.Blt->WidthHeight, 0,
(region->height << 16) | region->width);
mb();
}
static inline void convert_bgcolor_16(u32 *col)
{
*col = ((*col & 0x0000F800) << 8)
| ((*col & 0x00007E0) << 5)
| ((*col & 0x0000001F) << 3)
| 0xFF000000;
mb();
}
/**
* rivafb_imageblit: hardware accelerated color expand function
* @info: pointer to fb_info structure
* @image: pointer to fb_image structure
*
* DESCRIPTION:
* If the source is a monochrome bitmap, the function fills up a a region
* of framebuffer memory with pixels whose color is determined by the bit
* setting of the bitmap, 1 - foreground, 0 - background.
*
* If the source is not a monochrome bitmap, color expansion is not done.
* In this case, it is channeled to a software function.
*
* CALLED FROM:
* framebuffer hook
*/
static void rivafb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct riva_par *par = info->par;
u32 fgx = 0, bgx = 0, width, tmp;
u8 *cdat = (u8 *) image->data;
volatile u32 __iomem *d;
int i, size;
if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
cfb_imageblit(info, image);
return;
}
switch (info->var.bits_per_pixel) {
case 8:
fgx = image->fg_color;
bgx = image->bg_color;
break;
case 16:
case 32:
if (par->riva.Architecture != NV_ARCH_03) {
fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
} else {
fgx = par->palette[image->fg_color];
bgx = par->palette[image->bg_color];
}
if (info->var.green.length == 6)
convert_bgcolor_16(&bgx);
break;
}
RIVA_FIFO_FREE(par->riva, Bitmap, 7);
NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
(image->dy << 16) | (image->dx & 0xFFFF));
NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
(((image->dy + image->height) << 16) |
((image->dx + image->width) & 0xffff)));
NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
(image->height << 16) | ((image->width + 31) & ~31));
NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
(image->height << 16) | ((image->width + 31) & ~31));
NV_WR32(&par->riva.Bitmap->PointE, 0,
(image->dy << 16) | (image->dx & 0xFFFF));
d = &par->riva.Bitmap->MonochromeData01E;
width = (image->width + 31)/32;
size = width * image->height;
while (size >= 16) {
RIVA_FIFO_FREE(par->riva, Bitmap, 16);
for (i = 0; i < 16; i++) {
tmp = *((u32 *)cdat);
cdat = (u8 *)((u32 *)cdat + 1);
reverse_order(&tmp);
NV_WR32(d, i*4, tmp);
}
size -= 16;
}
if (size) {
RIVA_FIFO_FREE(par->riva, Bitmap, size);
for (i = 0; i < size; i++) {
tmp = *((u32 *) cdat);
cdat = (u8 *)((u32 *)cdat + 1);
reverse_order(&tmp);
NV_WR32(d, i*4, tmp);
}
}
}
/**
* rivafb_cursor - hardware cursor function
* @info: pointer to info structure
* @cursor: pointer to fbcursor structure
*
* DESCRIPTION:
* A cursor function that supports displaying a cursor image via hardware.
* Within the kernel, copy and invert rops are supported. If exported
* to user space, only the copy rop will be supported.
*
* CALLED FROM
* framebuffer hook
*/
static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct riva_par *par = info->par;
u8 data[MAX_CURS * MAX_CURS/8];
int i, set = cursor->set;
u16 fg, bg;
if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
return -ENXIO;
par->riva.ShowHideCursor(&par->riva, 0);
if (par->cursor_reset) {
set = FB_CUR_SETALL;
par->cursor_reset = 0;
}
if (set & FB_CUR_SETSIZE)
memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
if (set & FB_CUR_SETPOS) {
u32 xx, yy, temp;
yy = cursor->image.dy - info->var.yoffset;
xx = cursor->image.dx - info->var.xoffset;
temp = xx & 0xFFFF;
temp |= yy << 16;
NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
}
if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
u32 bg_idx = cursor->image.bg_color;
u32 fg_idx = cursor->image.fg_color;
u32 s_pitch = (cursor->image.width+7) >> 3;
u32 d_pitch = MAX_CURS/8;
u8 *dat = (u8 *) cursor->image.data;
u8 *msk = (u8 *) cursor->mask;
u8 *src;
src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
if (src) {
switch (cursor->rop) {
case ROP_XOR:
for (i = 0; i < s_pitch * cursor->image.height; i++)
src[i] = dat[i] ^ msk[i];
break;
case ROP_COPY:
default:
for (i = 0; i < s_pitch * cursor->image.height; i++)
src[i] = dat[i] & msk[i];
break;
}
fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
cursor->image.height);
bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
((info->cmap.green[bg_idx] & 0xf8) << 2) |
((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1 << 15;
fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
((info->cmap.green[fg_idx] & 0xf8) << 2) |
((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1 << 15;
par->riva.LockUnlock(&par->riva, 0);
rivafb_load_cursor_image(par, data, bg, fg,
cursor->image.width,
cursor->image.height);
kfree(src);
}
}
if (cursor->enable)
par->riva.ShowHideCursor(&par->riva, 1);
return 0;
}
static int rivafb_sync(struct fb_info *info)
{
struct riva_par *par = info->par;
wait_for_idle(par);
return 0;
}
/* ------------------------------------------------------------------------- *
*
* initialization helper functions
*
* ------------------------------------------------------------------------- */
/* kernel interface */
static struct fb_ops riva_fb_ops = {
.owner = THIS_MODULE,
.fb_open = rivafb_open,
.fb_release = rivafb_release,
.fb_check_var = rivafb_check_var,
.fb_set_par = rivafb_set_par,
.fb_setcolreg = rivafb_setcolreg,
.fb_pan_display = rivafb_pan_display,
.fb_blank = rivafb_blank,
.fb_fillrect = rivafb_fillrect,
.fb_copyarea = rivafb_copyarea,
.fb_imageblit = rivafb_imageblit,
.fb_cursor = rivafb_cursor,
.fb_sync = rivafb_sync,
};
static int __devinit riva_set_fbinfo(struct fb_info *info)
{
unsigned int cmap_len;
struct riva_par *par = info->par;
NVTRACE_ENTER();
info->flags = FBINFO_DEFAULT
| FBINFO_HWACCEL_XPAN
| FBINFO_HWACCEL_YPAN
| FBINFO_HWACCEL_COPYAREA
| FBINFO_HWACCEL_FILLRECT
| FBINFO_HWACCEL_IMAGEBLIT;
/* Accel seems to not work properly on NV30 yet...*/
if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
printk(KERN_DEBUG PFX "disabling acceleration\n");
info->flags |= FBINFO_HWACCEL_DISABLED;
}
info->var = rivafb_default_var;
info->fix.visual = (info->var.bits_per_pixel == 8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
info->pseudo_palette = par->pseudo_palette;
cmap_len = riva_get_cmap_len(&info->var);
fb_alloc_cmap(&info->cmap, cmap_len, 0);
info->pixmap.size = 8 * 1024;
info->pixmap.buf_align = 4;
info->pixmap.access_align = 32;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
info->var.yres_virtual = -1;
NVTRACE_LEAVE();
return (rivafb_check_var(&info->var, info));
}
#ifdef CONFIG_PPC_OF
static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
{
struct riva_par *par = info->par;
struct device_node *dp;
const unsigned char *pedid = NULL;
const unsigned char *disptype = NULL;
static char *propnames[] = {
"DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
int i;
NVTRACE_ENTER();
dp = pci_device_to_OF_node(pd);
for (; dp != NULL; dp = dp->child) {
disptype = get_property(dp, "display-type", NULL);
if (disptype == NULL)
continue;
if (strncmp(disptype, "LCD", 3) != 0)
continue;
for (i = 0; propnames[i] != NULL; ++i) {
pedid = get_property(dp, propnames[i], NULL);
if (pedid != NULL) {
par->EDID = (unsigned char *)pedid;
NVTRACE("LCD found.\n");
return 1;
}
}
}
NVTRACE_LEAVE();
return 0;
}
#endif /* CONFIG_PPC_OF */
#if defined(CONFIG_FB_RIVA_I2C) && !defined(CONFIG_PPC_OF)
static int __devinit riva_get_EDID_i2c(struct fb_info *info)
{
struct riva_par *par = info->par;
struct fb_var_screeninfo var;
int i;
NVTRACE_ENTER();
riva_create_i2c_busses(par);
for (i = 0; i < par->bus; i++) {
riva_probe_i2c_connector(par, i+1, &par->EDID);
if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
printk(PFX "Found EDID Block from BUS %i\n", i);
break;
}
}
NVTRACE_LEAVE();
return (par->EDID) ? 1 : 0;
}
#endif /* CONFIG_FB_RIVA_I2C */
static void __devinit riva_update_default_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct fb_monspecs *specs = &info->monspecs;
struct fb_videomode modedb;
NVTRACE_ENTER();
/* respect mode options */
if (mode_option) {
fb_find_mode(var, info, mode_option,
specs->modedb, specs->modedb_len,
NULL, 8);
} else if (specs->modedb != NULL) {
/* get preferred timing */
if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
int i;
for (i = 0; i < specs->modedb_len; i++) {
if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
modedb = specs->modedb[i];
break;
}
}
} else {
/* otherwise, get first mode in database */
modedb = specs->modedb[0];
}
var->bits_per_pixel = 8;
riva_update_var(var, &modedb);
}
NVTRACE_LEAVE();
}
static void __devinit riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
{
NVTRACE_ENTER();
#ifdef CONFIG_PPC_OF
if (!riva_get_EDID_OF(info, pdev))
printk(PFX "could not retrieve EDID from OF\n");
#elif defined(CONFIG_FB_RIVA_I2C)
if (!riva_get_EDID_i2c(info))
printk(PFX "could not retrieve EDID from DDC/I2C\n");
#endif
NVTRACE_LEAVE();
}
static void __devinit riva_get_edidinfo(struct fb_info *info)
{
struct fb_var_screeninfo *var = &rivafb_default_var;
struct riva_par *par = info->par;
fb_edid_to_monspecs(par->EDID, &info->monspecs);
fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
&info->modelist);
riva_update_default_var(var, info);
/* if user specified flatpanel, we respect that */
if (info->monspecs.input & FB_DISP_DDI)
par->FlatPanel = 1;
}
/* ------------------------------------------------------------------------- *
*
* PCI bus
*
* ------------------------------------------------------------------------- */
static u32 __devinit riva_get_arch(struct pci_dev *pd)
{
u32 arch = 0;
switch (pd->device & 0x0ff0) {
case 0x0100: /* GeForce 256 */
case 0x0110: /* GeForce2 MX */
case 0x0150: /* GeForce2 */
case 0x0170: /* GeForce4 MX */
case 0x0180: /* GeForce4 MX (8x AGP) */
case 0x01A0: /* nForce */
case 0x01F0: /* nForce2 */
arch = NV_ARCH_10;
break;
case 0x0200: /* GeForce3 */
case 0x0250: /* GeForce4 Ti */
case 0x0280: /* GeForce4 Ti (8x AGP) */
arch = NV_ARCH_20;
break;
case 0x0300: /* GeForceFX 5800 */
case 0x0310: /* GeForceFX 5600 */
case 0x0320: /* GeForceFX 5200 */
case 0x0330: /* GeForceFX 5900 */
case 0x0340: /* GeForceFX 5700 */
arch = NV_ARCH_30;
break;
case 0x0020: /* TNT, TNT2 */
arch = NV_ARCH_04;
break;
case 0x0010: /* Riva128 */
arch = NV_ARCH_03;
break;
default: /* unknown architecture */
break;
}
return arch;
}
static int __devinit rivafb_probe(struct pci_dev *pd,
const struct pci_device_id *ent)
{
struct riva_par *default_par;
struct fb_info *info;
int ret;
NVTRACE_ENTER();
assert(pd != NULL);
info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
if (!info) {
printk (KERN_ERR PFX "could not allocate memory\n");
ret = -ENOMEM;
goto err_ret;
}
default_par = info->par;
default_par->pdev = pd;
info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
if (info->pixmap.addr == NULL) {
ret = -ENOMEM;
goto err_framebuffer_release;
}
ret = pci_enable_device(pd);
if (ret < 0) {
printk(KERN_ERR PFX "cannot enable PCI device\n");
goto err_free_pixmap;
}
ret = pci_request_regions(pd, "rivafb");
if (ret < 0) {
printk(KERN_ERR PFX "cannot request PCI regions\n");
goto err_disable_device;
}
mutex_init(&default_par->open_lock);
default_par->riva.Architecture = riva_get_arch(pd);
default_par->Chipset = (pd->vendor << 16) | pd->device;
printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
if(default_par->riva.Architecture == 0) {
printk(KERN_ERR PFX "unknown NV_ARCH\n");
ret=-ENODEV;
goto err_release_region;
}
if(default_par->riva.Architecture == NV_ARCH_10 ||
default_par->riva.Architecture == NV_ARCH_20 ||
default_par->riva.Architecture == NV_ARCH_30) {
sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
} else {
sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
}
default_par->FlatPanel = flatpanel;
if (flatpanel == 1)
printk(KERN_INFO PFX "flatpanel support enabled\n");
default_par->forceCRTC = forceCRTC;
rivafb_fix.mmio_len = pci_resource_len(pd, 0);
rivafb_fix.smem_len = pci_resource_len(pd, 1);
{
/* enable IO and mem if not already done */
unsigned short cmd;
pci_read_config_word(pd, PCI_COMMAND, &cmd);
cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
pci_write_config_word(pd, PCI_COMMAND, cmd);
}
rivafb_fix.mmio_start = pci_resource_start(pd, 0);
rivafb_fix.smem_start = pci_resource_start(pd, 1);
default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
rivafb_fix.mmio_len);
if (!default_par->ctrl_base) {
printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
ret = -EIO;
goto err_release_region;
}
switch (default_par->riva.Architecture) {
case NV_ARCH_03:
/* Riva128's PRAMIN is in the "framebuffer" space
* Since these cards were never made with more than 8 megabytes
* we can safely allocate this separately.
*/
default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
if (!default_par->riva.PRAMIN) {
printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
ret = -EIO;
goto err_iounmap_ctrl_base;
}
break;
case NV_ARCH_04:
case NV_ARCH_10:
case NV_ARCH_20:
case NV_ARCH_30:
default_par->riva.PCRTC0 =
(u32 __iomem *)(default_par->ctrl_base + 0x00600000);
default_par->riva.PRAMIN =
(u32 __iomem *)(default_par->ctrl_base + 0x00710000);
break;
}
riva_common_setup(default_par);
if (default_par->riva.Architecture == NV_ARCH_03) {
default_par->riva.PCRTC = default_par->riva.PCRTC0
= default_par->riva.PGRAPH;
}
rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
info->screen_base = ioremap(rivafb_fix.smem_start,
rivafb_fix.smem_len);
if (!info->screen_base) {
printk(KERN_ERR PFX "cannot ioremap FB base\n");
ret = -EIO;
goto err_iounmap_pramin;
}
#ifdef CONFIG_MTRR
if (!nomtrr) {
default_par->mtrr.vram = mtrr_add(rivafb_fix.smem_start,
rivafb_fix.smem_len,
MTRR_TYPE_WRCOMB, 1);
if (default_par->mtrr.vram < 0) {
printk(KERN_ERR PFX "unable to setup MTRR\n");
} else {
default_par->mtrr.vram_valid = 1;
/* let there be speed */
printk(KERN_INFO PFX "RIVA MTRR set to ON\n");
}
}
#endif /* CONFIG_MTRR */
info->fbops = &riva_fb_ops;
info->fix = rivafb_fix;
riva_get_EDID(info, pd);
riva_get_edidinfo(info);
ret=riva_set_fbinfo(info);
if (ret < 0) {
printk(KERN_ERR PFX "error setting initial video mode\n");
goto err_iounmap_screen_base;
}
fb_destroy_modedb(info->monspecs.modedb);
info->monspecs.modedb = NULL;
pci_set_drvdata(pd, info);
riva_bl_init(info->par);
ret = register_framebuffer(info);
if (ret < 0) {
printk(KERN_ERR PFX
"error registering riva framebuffer\n");
goto err_iounmap_screen_base;
}
printk(KERN_INFO PFX
"PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
info->fix.id,
RIVAFB_VERSION,
info->fix.smem_len / (1024 * 1024),
info->fix.smem_start);
NVTRACE_LEAVE();
return 0;
err_iounmap_screen_base:
#ifdef CONFIG_FB_RIVA_I2C
riva_delete_i2c_busses(info->par);
#endif
iounmap(info->screen_base);
err_iounmap_pramin:
if (default_par->riva.Architecture == NV_ARCH_03)
iounmap(default_par->riva.PRAMIN);
err_iounmap_ctrl_base:
iounmap(default_par->ctrl_base);
err_release_region:
pci_release_regions(pd);
err_disable_device:
err_free_pixmap:
kfree(info->pixmap.addr);
err_framebuffer_release:
framebuffer_release(info);
err_ret:
return ret;
}
static void __exit rivafb_remove(struct pci_dev *pd)
{
struct fb_info *info = pci_get_drvdata(pd);
struct riva_par *par = info->par;
NVTRACE_ENTER();
#ifdef CONFIG_FB_RIVA_I2C
riva_delete_i2c_busses(par);
kfree(par->EDID);
#endif
unregister_framebuffer(info);
riva_bl_exit(info);
#ifdef CONFIG_MTRR
if (par->mtrr.vram_valid)
mtrr_del(par->mtrr.vram, info->fix.smem_start,
info->fix.smem_len);
#endif /* CONFIG_MTRR */
iounmap(par->ctrl_base);
iounmap(info->screen_base);
if (par->riva.Architecture == NV_ARCH_03)
iounmap(par->riva.PRAMIN);
pci_release_regions(pd);
kfree(info->pixmap.addr);
framebuffer_release(info);
pci_set_drvdata(pd, NULL);
NVTRACE_LEAVE();
}
/* ------------------------------------------------------------------------- *
*
* initialization
*
* ------------------------------------------------------------------------- */
#ifndef MODULE
static int __init rivafb_setup(char *options)
{
char *this_opt;
NVTRACE_ENTER();
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!strncmp(this_opt, "forceCRTC", 9)) {
char *p;
p = this_opt + 9;
if (!*p || !*(++p)) continue;
forceCRTC = *p - '0';
if (forceCRTC < 0 || forceCRTC > 1)
forceCRTC = -1;
} else if (!strncmp(this_opt, "flatpanel", 9)) {
flatpanel = 1;
#ifdef CONFIG_MTRR
} else if (!strncmp(this_opt, "nomtrr", 6)) {
nomtrr = 1;
#endif
} else if (!strncmp(this_opt, "strictmode", 10)) {
strictmode = 1;
} else if (!strncmp(this_opt, "noaccel", 7)) {
noaccel = 1;
} else
mode_option = this_opt;
}
NVTRACE_LEAVE();
return 0;
}
#endif /* !MODULE */
static struct pci_driver rivafb_driver = {
.name = "rivafb",
.id_table = rivafb_pci_tbl,
.probe = rivafb_probe,
.remove = __exit_p(rivafb_remove),
};
/* ------------------------------------------------------------------------- *
*
* modularization
*
* ------------------------------------------------------------------------- */
static int __devinit rivafb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("rivafb", &option))
return -ENODEV;
rivafb_setup(option);
#endif
return pci_register_driver(&rivafb_driver);
}
module_init(rivafb_init);
#ifdef MODULE
static void __exit rivafb_exit(void)
{
pci_unregister_driver(&rivafb_driver);
}
module_exit(rivafb_exit);
#endif /* MODULE */
module_param(noaccel, bool, 0);
MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
module_param(flatpanel, int, 0);
MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
module_param(forceCRTC, int, 0);
MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
#ifdef CONFIG_MTRR
module_param(nomtrr, bool, 0);
MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
#endif
module_param(strictmode, bool, 0);
MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
MODULE_AUTHOR("Ani Joshi, maintainer");
MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
MODULE_LICENSE("GPL");
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