WebSVN - shark - Rev 472 - /shark/trunk/drivers/fb/riva/fbdev.c

/*
* 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 <linuxcomp.h>

#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#ifdef CONFIG_MTRR
#include <asm/mtrr.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
*
* ------------------------------------------------------------------------- */

#undef RIVAFBDEBUG
#ifdef RIVAFBDEBUG
#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
#else
#define DPRINTK(fmt, args...)
#endif

#ifndef RIVA_NDEBUG
#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
*
* ------------------------------------------------------------------------- */

enum riva_chips {
CH_RIVA_128 = 0,
CH_RIVA_TNT,
CH_RIVA_TNT2,
CH_RIVA_UTNT2,
CH_RIVA_VTNT2,
CH_RIVA_UVTNT2,
CH_RIVA_ITNT2,
CH_GEFORCE_SDR,
CH_GEFORCE_DDR,
CH_QUADRO,
CH_GEFORCE2_MX,
CH_GEFORCE2_MX2,
CH_GEFORCE2_GO,
CH_QUADRO2_MXR,
CH_GEFORCE2_GTS,
CH_GEFORCE2_GTS2,
CH_GEFORCE2_ULTRA,
CH_QUADRO2_PRO,
CH_GEFORCE4_MX_460,
CH_GEFORCE4_MX_440,
CH_GEFORCE4_MX_420,
CH_GEFORCE4_440_GO,
CH_GEFORCE4_420_GO,
CH_GEFORCE4_420_GO_M32,
CH_QUADRO4_500XGL,
CH_GEFORCE4_440_GO_M64,
CH_QUADRO4_200,
CH_QUADRO4_550XGL,
CH_QUADRO4_500_GOGL,
CH_IGEFORCE2,
CH_GEFORCE3,
CH_GEFORCE3_1,
CH_GEFORCE3_2,
CH_QUADRO_DDC,
CH_GEFORCE4_TI_4600,
CH_GEFORCE4_TI_4400,
CH_GEFORCE4_TI_4200,
CH_QUADRO4_900XGL,
CH_QUADRO4_750XGL,
CH_QUADRO4_700XGL
};

/* directly indexed by riva_chips enum, above */
static struct riva_chip_info {
const char *name;
unsigned arch_rev;
} riva_chip_info[] __initdata = {
{ "RIVA-128", NV_ARCH_03 },
{ "RIVA-TNT", NV_ARCH_04 },
{ "RIVA-TNT2", NV_ARCH_04 },
{ "RIVA-UTNT2", NV_ARCH_04 },
{ "RIVA-VTNT2", NV_ARCH_04 },
{ "RIVA-UVTNT2", NV_ARCH_04 },
{ "RIVA-ITNT2", NV_ARCH_04 },
{ "GeForce-SDR", NV_ARCH_10 },
{ "GeForce-DDR", NV_ARCH_10 },
{ "Quadro", NV_ARCH_10 },
{ "GeForce2-MX", NV_ARCH_10 },
{ "GeForce2-MX", NV_ARCH_10 },
{ "GeForce2-GO", NV_ARCH_10 },
{ "Quadro2-MXR", NV_ARCH_10 },
{ "GeForce2-GTS", NV_ARCH_10 },
{ "GeForce2-GTS", NV_ARCH_10 },
{ "GeForce2-ULTRA", NV_ARCH_10 },
{ "Quadro2-PRO", NV_ARCH_10 },
{ "GeForce4-MX-460", NV_ARCH_20 },
{ "GeForce4-MX-440", NV_ARCH_20 },
{ "GeForce4-MX-420", NV_ARCH_20 },
{ "GeForce4-440-GO", NV_ARCH_20 },
{ "GeForce4-420-GO", NV_ARCH_20 },
{ "GeForce4-420-GO-M32", NV_ARCH_20 },
{ "Quadro4-500-XGL", NV_ARCH_20 },
{ "GeForce4-440-GO-M64", NV_ARCH_20 },
{ "Quadro4-200", NV_ARCH_20 },
{ "Quadro4-550-XGL", NV_ARCH_20 },
{ "Quadro4-500-GOGL", NV_ARCH_20 },
{ "GeForce2", NV_ARCH_20 },
{ "GeForce3", NV_ARCH_20 },
{ "GeForce3 Ti 200", NV_ARCH_20 },
{ "GeForce3 Ti 500", NV_ARCH_20 },
{ "Quadro DDC", NV_ARCH_20 },
{ "GeForce4 Ti 4600", NV_ARCH_20 },
{ "GeForce4 Ti 4400", NV_ARCH_20 },
{ "GeForce4 Ti 4200", NV_ARCH_20 },
{ "Quadro4-900-XGL", NV_ARCH_20 },
{ "Quadro4-750-XGL", NV_ARCH_20 },
{ "Quadro4-700-XGL", NV_ARCH_20 }
};

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, CH_RIVA_128 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_TNT },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_TNT2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_UTNT2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_VTNT2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_VTNT2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RIVA_ITNT2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE_SDR },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE_DDR },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_MX },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_MX2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_GO },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO2_MXR },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_GTS },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_GTS2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE2_ULTRA },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO2_PRO },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_MX_460 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_MX_440 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_MX_420 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_440_GO },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_420_GO },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_420_GO_M32 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_500XGL },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_440_GO_M64 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_200 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_550XGL },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_500_GOGL },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_IGEFORCE2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE3 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE3_1 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE3_2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO_DDC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_TI_4600 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_TI_4400 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_GEFORCE4_TI_4200 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_900XGL },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_750XGL },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_QUADRO4_700XGL },
{ 0, } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);

/* ------------------------------------------------------------------------- *
*
* global variables
*
* ------------------------------------------------------------------------- */

/* command line data, set in rivafb_setup() */
static u32 pseudo_palette[17];
static int flatpanel __initdata = -1; /* Autodetect later */
static int forceCRTC __initdata = -1;
#ifdef CONFIG_MTRR
static int nomtrr __initdata = 0;
#endif

#ifndef MODULE
static char *mode_option __initdata = NULL;
#endif

static struct fb_fix_screeninfo rivafb_fix = {
.id = "nVidia",
.type = FB_TYPE_PACKED_PIXELS,
.xpanstep = 1,
.ypanstep = 1,
};

static struct fb_var_screeninfo 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,
.accel_flags = FB_ACCELF_TEXT,
.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 */
};

/* ------------------------------------------------------------------------- *
*
* 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 u8 byte_rev[256] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
};

static inline void reverse_order(u32 *l)
{
u8 *a = (u8 *)l;
*a = byte_rev[*a], a++;
*a = byte_rev[*a], a++;
*a = byte_rev[*a], a++;
*a = byte_rev[*a];
}

/* ------------------------------------------------------------------------- *
*
* 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 *data,
u8 *mask, u16 bg, u16 fg, u32 w, u32 h)
{
int i, j, k = 0;
u32 b, m, tmp;

for (i = 0; i < h; i++) {
b = *((u32 *)data)++;
m = *((u32 *)mask)++;
reverse_order(&b);

for (j = 0; j < w/2; j++) {
tmp = 0;
#if defined (__BIG_ENDIAN)
if (m & (1 << 31)) {
fg |= 1 << 15;
bg |= 1 << 15;
}
tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
b <<= 1;
m <<= 1;

if (m & (1 << 31)) {
fg |= 1 << 15;
bg |= 1 << 15;
}
tmp |= (b & (1 << 31)) ? fg : bg;
b <<= 1;
m <<= 1;
#else
if (m & 1) {
fg |= 1 << 15;
bg |= 1 << 15;
}
tmp = (b & 1) ? fg : bg;
b >>= 1;
m >>= 1;

if (m & 1) {
fg |= 1 << 15;
bg |= 1 << 15;
}
tmp |= (b & 1) ? fg << 16 : bg << 16;
b >>= 1;
m >>= 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, 0x3c8, 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;

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);
}

/**
* 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;

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]);
}

/**
* 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 void 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;
struct riva_par *par = (struct riva_par *) info->par;
struct riva_regs newmode;

/* time to calculate */
rivafb_blank(1, 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 *)(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;

par->riva.CalcStateExt(&par->riva, &newmode.ext, bpp, width,
hDisplaySize, height, dotClock);

newmode.ext.scale = par->riva.PRAMDAC[0x00000848/4] & 0xfff000ff;
if (par->FlatPanel == 1) {
newmode.ext.pixel |= (1 << 7);
newmode.ext.scale |= (1 << 8);
}
if (par->SecondCRTC) {
newmode.ext.head = par->riva.PCRTC0[0x00000860/4] & ~0x00001000;
newmode.ext.head2 = par->riva.PCRTC0[0x00002860/4] | 0x00001000;
newmode.ext.crtcOwner = 3;
newmode.ext.pllsel |= 0x20000800;
newmode.ext.vpll2 = newmode.ext.vpll;
} else if (par->riva.twoHeads) {
newmode.ext.head = par->riva.PCRTC0[0x00000860/4] | 0x00001000;
newmode.ext.head2 = par->riva.PCRTC0[0x00002860/4] & ~0x00001000;
newmode.ext.crtcOwner = 0;
newmode.ext.vpll2 = par->riva.PRAMDAC0[0x00000520/4];
}
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 */
rivafb_blank(0, info);
}

/**
* 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;

/* 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 / 2)
break;
}
if (modes[i].xres == -1) {
printk(KERN_ERR PFX
"could not find a virtual resolution that fits into video memory!!\n");
DPRINTK("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 * 2)) & ~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 * 2);
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);
DPRINTK("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;
}
return 0;
}

/* acceleration routines */
inline void wait_for_idle(struct riva_par *par)
{
while (par->riva.Busy(&par->riva));
}

/* set copy ROP, no mask */
static void riva_setup_ROP(struct riva_par *par)
{
RIVA_FIFO_FREE(par->riva, Patt, 5);
par->riva.Patt->Shape = 0;
par->riva.Patt->Color0 = 0xffffffff;
par->riva.Patt->Color1 = 0xffffffff;
par->riva.Patt->Monochrome[0] = 0xffffffff;
par->riva.Patt->Monochrome[1] = 0xffffffff;

RIVA_FIFO_FREE(par->riva, Rop, 1);
par->riva.Rop->Rop3 = 0xCC;
}

void riva_setup_accel(struct riva_par *par)
{
RIVA_FIFO_FREE(par->riva, Clip, 2);
par->riva.Clip->TopLeft = 0x0;
par->riva.Clip->WidthHeight = 0x80008000;
riva_setup_ROP(par);
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 = (struct riva_par *) info->par;
int cnt = atomic_read(&par->ref_count);

if (!cnt) {
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);

RivaGetConfig(&par->riva, par->Chipset);
/* vgaHWunlock() + riva unlock (0x7F) */
CRTCout(par, 0x11, 0xFF);
par->riva.LockUnlock(&par->riva, 0);

riva_save_state(par, &par->initial_state);
}
atomic_inc(&par->ref_count);
return 0;
}

static int rivafb_release(struct fb_info *info, int user)
{
struct riva_par *par = (struct riva_par *) info->par;
int cnt = atomic_read(&par->ref_count);

if (!cnt)
return -EINVAL;
if (cnt == 1) {
par->riva.LockUnlock(&par->riva, 0);
par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
riva_load_state(par, &par->initial_state);
restore_vga(&par->state);
par->riva.LockUnlock(&par->riva, 1);
}
atomic_dec(&par->ref_count);
return 0;
}

static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
int nom, den; /* translating from pixels->bytes */

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;
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);
DPRINTK("EXIT, returning -EINVAL\n");
return -EINVAL;
}

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;
return 0;
}

static int rivafb_set_par(struct fb_info *info)
{
struct riva_par *par = (struct riva_par *) info->par;

riva_load_video_mode(info);
riva_setup_accel(par);

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;
return 0;
}

/**
* 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 = (struct riva_par *)info->par;
unsigned int base;

if (var->xoffset > (var->xres_virtual - var->xres))
return -EINVAL;
if (var->yoffset > (var->yres_virtual - var->yres))
return -EINVAL;

if (var->vmode & FB_VMODE_YWRAP) {
if (var->yoffset < 0
|| var->yoffset >= info->var.yres_virtual
|| var->xoffset) return -EINVAL;
} else {
if (var->xoffset + info->var.xres > info->var.xres_virtual ||
var->yoffset + info->var.yres > info->var.yres_virtual)
return -EINVAL;
}

base = var->yoffset * info->fix.line_length + var->xoffset;

par->riva.SetStartAddress(&par->riva, base);

info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;

if (var->vmode & FB_VMODE_YWRAP)
info->var.vmode |= FB_VMODE_YWRAP;
else
info->var.vmode &= ~FB_VMODE_YWRAP;
return 0;
}

static int rivafb_blank(int blank, struct fb_info *info)
{
struct riva_par *par= (struct riva_par *)info->par;
unsigned char tmp, vesa;

tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */

if (blank) {
tmp |= 0x20;
switch (blank - 1) {
case VESA_NO_BLANKING:
break;
case VESA_VSYNC_SUSPEND:
vesa |= 0x80;
break;
case VESA_HSYNC_SUSPEND:
vesa |= 0x40;
break;
case VESA_POWERDOWN:
vesa |= 0xc0;
break;
}
}
SEQout(par, 0x01, tmp);
CRTCout(par, 0x1a, vesa);
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 = (struct riva_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;
}

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) {
if (regno < 16) {
/* 0rrrrrgg gggbbbbb */
((u32 *)info->pseudo_palette)[regno] =
((red & 0xf800) >> 1) |
((green & 0xf800) >> 6) |
((blue & 0xf800) >> 11);
}
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 < 16) {
/* rrrrrggg gggbbbbb */
((u32 *)info->pseudo_palette)[regno] =
((red & 0xf800) >> 0) |
((green & 0xf800) >> 5) |
((blue & 0xf800) >> 11);
}
if (regno < 32) {
for (i = 0; i < 8; i++) {
riva_wclut(chip, regno*8+i, red >> 8,
green >> 8, blue >> 8);
}
}
for (i = 0; i < 4; i++) {
riva_rclut(chip, regno*2+i, &r, &g, &b);
riva_wclut(chip, regno*4+i, r, green >> 8, b);
}
}
break;
case 32:
if (regno < 16) {
((u32 *)info->pseudo_palette)[regno] =
((red & 0xff00) << 8) |
((green & 0xff00)) | ((blue & 0xff00) >> 8);

}
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 = (struct riva_par *) info->par;
u_int color, rop = 0;

if (info->var.bits_per_pixel == 8)
color = rect->color;
else
color = ((u32 *)info->pseudo_palette)[rect->color];

switch (rect->rop) {
case ROP_XOR:
rop = 0x66;
break;
case ROP_COPY:
default:
rop = 0xCC;
break;
}

RIVA_FIFO_FREE(par->riva, Rop, 1);
par->riva.Rop->Rop3 = rop;

RIVA_FIFO_FREE(par->riva, Bitmap, 1);
par->riva.Bitmap->Color1A = color;

RIVA_FIFO_FREE(par->riva, Bitmap, 2);
par->riva.Bitmap->UnclippedRectangle[0].TopLeft =
(rect->dx << 16) | rect->dy;
par->riva.Bitmap->UnclippedRectangle[0].WidthHeight =
(rect->width << 16) | rect->height;
RIVA_FIFO_FREE(par->riva, Rop, 1);
par->riva.Rop->Rop3 = 0xCC; // back to COPY
}

/**
* 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 = (struct riva_par *) info->par;

RIVA_FIFO_FREE(par->riva, Blt, 3);
par->riva.Blt->TopLeftSrc = (region->sy << 16) | region->sx;
par->riva.Blt->TopLeftDst = (region->dy << 16) | region->dx;
par->riva.Blt->WidthHeight = (region->height << 16) | region->width;
wait_for_idle(par);
}

static inline void convert_bgcolor_16(u32 *col)
{
*col = ((*col & 0x00007C00) << 9)
| ((*col & 0x000003E0) << 6)
| ((*col & 0x0000001F) << 3)
| 0xFF000000;
}

/**
* 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 = (struct riva_par *) info->par;
u32 fgx = 0, bgx = 0, width, tmp;
u8 *cdat = (u8 *) image->data;
volatile u32 *d;
int i, size;

if (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:
fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
if (info->var.green.length == 6)
convert_bgcolor_16(&bgx);
break;
case 32:
fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
break;
}

RIVA_FIFO_FREE(par->riva, Bitmap, 7);
par->riva.Bitmap->ClipE.TopLeft =
(image->dy << 16) | (image->dx & 0xFFFF);
par->riva.Bitmap->ClipE.BottomRight =
(((image->dy + image->height) << 16) |
((image->dx + image->width) & 0xffff));
par->riva.Bitmap->Color0E = bgx;
par->riva.Bitmap->Color1E = fgx;
par->riva.Bitmap->WidthHeightInE =
(image->height << 16) | ((image->width + 31) & ~31);
par->riva.Bitmap->WidthHeightOutE =
(image->height << 16) | ((image->width + 31) & ~31);
par->riva.Bitmap->PointE =
(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)++;
reverse_order(&tmp);
d[i] = tmp;
}
size -= 16;
}
if (size) {
RIVA_FIFO_FREE(par->riva, Bitmap, size);
for (i = 0; i < size; i++) {
tmp = *((u32 *) cdat)++;
reverse_order(&tmp);
d[i] = 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 = (struct riva_par *) info->par;
u8 data[MAX_CURS * MAX_CURS/8];
u8 mask[MAX_CURS * MAX_CURS/8];
u16 fg, bg;
int i;

par->riva.ShowHideCursor(&par->riva, 0);

if (cursor->set & FB_CUR_SETPOS) {
u32 xx, yy, temp;

info->cursor.image.dx = cursor->image.dx;
info->cursor.image.dy = cursor->image.dy;
yy = cursor->image.dy - info->var.yoffset;
xx = cursor->image.dx - info->var.xoffset;
temp = xx & 0xFFFF;
temp |= yy << 16;

par->riva.PRAMDAC[0x0000300/4] = temp;
}

if (cursor->set & FB_CUR_SETSIZE) {
info->cursor.image.height = cursor->image.height;
info->cursor.image.width = cursor->image.width;
memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
}

if (cursor->set & FB_CUR_SETCMAP) {
info->cursor.image.bg_color = cursor->image.bg_color;
info->cursor.image.fg_color = cursor->image.fg_color;
}

if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP)) {
u32 bg_idx = info->cursor.image.bg_color;
u32 fg_idx = info->cursor.image.fg_color;
u32 s_pitch = (info->cursor.image.width+7) >> 3;
u32 d_pitch = MAX_CURS/8;
u8 *dat = (u8 *) cursor->image.data;
u8 *msk = (u8 *) info->cursor.mask;
u8 src[64];

switch (info->cursor.rop) {
case ROP_XOR:
for (i = 0; i < s_pitch * info->cursor.image.height; i++)
src[i] = dat[i] ^ msk[i];
break;
case ROP_COPY:
default:
for (i = 0; i < s_pitch * info->cursor.image.height; i++)

src[i] = dat[i] & msk[i];
break;
}

move_buf_aligned(info, data, src, d_pitch, s_pitch, info->cursor.image.height);

move_buf_aligned(info, mask, msk, d_pitch, s_pitch, info->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);

fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
((info->cmap.green[fg_idx] & 0xf8) << 2) |
((info->cmap.blue[fg_idx] & 0xf8) >> 3);

par->riva.LockUnlock(&par->riva, 0);

rivafb_load_cursor_image(par, data, mask, bg, fg,
info->cursor.image.width,
info->cursor.image.height);
}
if (info->cursor.enable)
par->riva.ShowHideCursor(&par->riva, 1);
return 0;
}

static int rivafb_sync(struct fb_info *info)
{
struct riva_par *par = (struct riva_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)
{
struct riva_par *par = (struct riva_par *) info->par;
unsigned int cmap_len;

info->flags = FBINFO_FLAG_DEFAULT;
info->var = rivafb_default_var;
info->fix = rivafb_fix;
info->fbops = &riva_fb_ops;
info->pseudo_palette = pseudo_palette;

#ifndef MODULE
if (mode_option)
fb_find_mode(&info->var, info, mode_option,
NULL, 0, NULL, 8);
#endif
if (par->use_default_var)
/* We will use the modified default var */
info->var = rivafb_default_var;

cmap_len = riva_get_cmap_len(&info->var);
fb_alloc_cmap(&info->cmap, cmap_len, 0);

info->pixmap.size = 64 * 1024;
info->pixmap.buf_align = 4;
info->pixmap.scan_align = 4;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
return 0;
}

#ifdef CONFIG_PPC_OF
static int riva_get_EDID_OF(struct riva_par *par, struct pci_dev *pd)
{
struct device_node *dp;
unsigned char *pedid = NULL;

dp = pci_device_to_OF_node(pd);
pedid = (unsigned char *)get_property(dp, "EDID,B", 0);

if (pedid) {
par->EDID = pedid;
return 1;
} else
return 0;
}
#endif /* CONFIG_PPC_OF */

static int riva_dfp_parse_EDID(struct riva_par *par)
{
unsigned char *block = par->EDID;

if (!block)
return 0;

/* jump to detailed timing block section */
block += 54;

par->clock = (block[0] + (block[1] << 8));
par->panel_xres = (block[2] + ((block[4] & 0xf0) << 4));
par->hblank = (block[3] + ((block[4] & 0x0f) << 8));
par->panel_yres = (block[5] + ((block[7] & 0xf0) << 4));
par->vblank = (block[6] + ((block[7] & 0x0f) << 8));
par->hOver_plus = (block[8] + ((block[11] & 0xc0) << 2));
par->hSync_width = (block[9] + ((block[11] & 0x30) << 4));
par->vOver_plus = ((block[10] >> 4) + ((block[11] & 0x0c) << 2));
par->vSync_width = ((block[10] & 0x0f) + ((block[11] & 0x03) << 4));
par->interlaced = ((block[17] & 0x80) >> 7);
par->synct = ((block[17] & 0x18) >> 3);
par->misc = ((block[17] & 0x06) >> 1);
par->hAct_high = par->vAct_high = 0;
if (par->synct == 3) {
if (par->misc & 2)
par->hAct_high = 1;
if (par->misc & 1)
par->vAct_high = 1;
}

printk(KERN_INFO PFX
"detected DFP panel size from EDID: %dx%d\n",
par->panel_xres, par->panel_yres);
par->got_dfpinfo = 1;
return 1;
}

static void riva_update_default_var(struct fb_info *info)
{
struct fb_var_screeninfo *var = &rivafb_default_var;
struct riva_par *par = (struct riva_par *) info->par;

var->xres = par->panel_xres;
var->yres = par->panel_yres;
var->xres_virtual = par->panel_xres;
var->yres_virtual = par->panel_yres;
var->xoffset = var->yoffset = 0;
var->bits_per_pixel = 8;
var->pixclock = 100000000 / par->clock;
var->left_margin = (par->hblank - par->hOver_plus - par->hSync_width);
var->right_margin = par->hOver_plus;
var->upper_margin = (par->vblank - par->vOver_plus - par->vSync_width);
var->lower_margin = par->vOver_plus;
var->hsync_len = par->hSync_width;
var->vsync_len = par->vSync_width;
var->sync = 0;

if (par->synct == 3) {
if (par->hAct_high)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (par->vAct_high)
var->sync |= FB_SYNC_VERT_HIGH_ACT;
}

var->vmode = 0;
if (par->interlaced)
var->vmode |= FB_VMODE_INTERLACED;

var->accel_flags |= FB_ACCELF_TEXT;

par->use_default_var = 1;
}

static void riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
{
#ifdef CONFIG_PPC_OF
if (!riva_get_EDID_OF(info, pdev))
printk("rivafb: could not retrieve EDID from OF\n");
#else
/* XXX use other methods later */
#endif
}

static void riva_get_dfpinfo(struct fb_info *info)
{
struct riva_par *par = (struct riva_par *) info->par;

if (riva_dfp_parse_EDID(par))
riva_update_default_var(info);

/* if user specified flatpanel, we respect that */
if (par->got_dfpinfo == 1)
par->FlatPanel = 1;
}

/* ------------------------------------------------------------------------- *
*
* PCI bus
*
* ------------------------------------------------------------------------- */

static int __devinit rivafb_probe(struct pci_dev *pd,
const struct pci_device_id *ent)
{
struct riva_chip_info *rci = &riva_chip_info[ent->driver_data];
struct riva_par *default_par;
struct fb_info *info;

assert(pd != NULL);
assert(rci != NULL);

info = kmalloc(sizeof(struct fb_info), GFP_KERNEL);
if (!info)
goto err_out;

default_par = kmalloc(sizeof(struct riva_par), GFP_KERNEL);
if (!default_par)
goto err_out_kfree;

memset(info, 0, sizeof(struct fb_info));
memset(default_par, 0, sizeof(struct riva_par));

info->pixmap.addr = kmalloc(64 * 1024, GFP_KERNEL);
if (info->pixmap.addr == NULL)
goto err_out_kfree1;
memset(info->pixmap.addr, 0, 64 * 1024);

strcat(rivafb_fix.id, rci->name);
default_par->riva.Architecture = rci->arch_rev;

default_par->Chipset = (pd->vendor << 16) | pd->device;
printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);

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);

if (!request_mem_region(rivafb_fix.mmio_start,
rivafb_fix.mmio_len, "rivafb")) {
printk(KERN_ERR PFX "cannot reserve MMIO region\n");
goto err_out_kfree2;
}

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");
goto err_out_free_base0;
}

info->par = default_par;

riva_get_EDID(info, pd);

riva_get_dfpinfo(info);

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.
*/
if (!request_mem_region(rivafb_fix.smem_start + 0x00C00000,
0x00008000, "rivafb")) {
printk(KERN_ERR PFX "cannot reserve PRAMIN region\n");
goto err_out_iounmap_ctrl;
}
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");
goto err_out_free_nv3_pramin;
}
rivafb_fix.accel = FB_ACCEL_NV3;
break;
case NV_ARCH_04:
case NV_ARCH_10:
case NV_ARCH_20:
default_par->riva.PCRTC0 = (unsigned *)(default_par->ctrl_base + 0x00600000);
default_par->riva.PRAMIN = (unsigned *)(default_par->ctrl_base + 0x00710000);
rivafb_fix.accel = FB_ACCEL_NV4;
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;

if (!request_mem_region(rivafb_fix.smem_start,
rivafb_fix.smem_len, "rivafb")) {
printk(KERN_ERR PFX "cannot reserve FB region\n");
goto err_out_iounmap_nv3_pramin;
}

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");
goto err_out_free_base1;
}

#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 */

if (riva_set_fbinfo(info) < 0) {
printk(KERN_ERR PFX "error setting initial video mode\n");
goto err_out_iounmap_fb;
}

if (register_framebuffer(info) < 0) {
printk(KERN_ERR PFX
"error registering riva framebuffer\n");
goto err_out_iounmap_fb;
}

pci_set_drvdata(pd, info);

printk(KERN_INFO PFX
"PCI nVidia NV%x framebuffer ver %s (%s, %dMB @ 0x%lX)\n",
default_par->riva.Architecture,
RIVAFB_VERSION,
info->fix.id,
info->fix.smem_len / (1024 * 1024),
info->fix.smem_start);
return 0;

err_out_iounmap_fb:
iounmap(info->screen_base);
err_out_free_base1:
release_mem_region(rivafb_fix.smem_start, rivafb_fix.smem_len);
err_out_iounmap_nv3_pramin:
if (default_par->riva.Architecture == NV_ARCH_03)
iounmap((caddr_t)default_par->riva.PRAMIN);
err_out_free_nv3_pramin:
if (default_par->riva.Architecture == NV_ARCH_03)
release_mem_region(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
err_out_iounmap_ctrl:
iounmap(default_par->ctrl_base);
err_out_free_base0:
release_mem_region(rivafb_fix.mmio_start, rivafb_fix.mmio_len);
err_out_kfree2:
kfree(info->pixmap.addr);
err_out_kfree1:
kfree(default_par);
err_out_kfree:
kfree(info);
err_out:
return -ENODEV;
}

static void __exit rivafb_remove(struct pci_dev *pd)
{
struct fb_info *info = pci_get_drvdata(pd);
struct riva_par *par = (struct riva_par *) info->par;

if (!info)
return;

unregister_framebuffer(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);

release_mem_region(info->fix.mmio_start,
info->fix.mmio_len);
release_mem_region(info->fix.smem_start,
info->fix.smem_len);

if (par->riva.Architecture == NV_ARCH_03) {
iounmap((caddr_t)par->riva.PRAMIN);
release_mem_region(info->fix.smem_start + 0x00C00000, 0x00008000);
}
kfree(info->pixmap.addr);
kfree(par);
kfree(info);
pci_set_drvdata(pd, NULL);
}

/* ------------------------------------------------------------------------- *
*
* initialization
*
* ------------------------------------------------------------------------- */

#ifndef MODULE
int __init rivafb_setup(char *options)
{
char *this_opt;

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
mode_option = this_opt;
}
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
*
* ------------------------------------------------------------------------- */

int __init rivafb_init(void)
{
if (pci_register_driver(&rivafb_driver) > 0)
return 0;
pci_unregister_driver(&rivafb_driver);
return -ENODEV;
}

#ifdef MODULE
static void __exit rivafb_exit(void)
{
pci_unregister_driver(&rivafb_driver);
}

module_init(rivafb_init);
module_exit(rivafb_exit);

MODULE_PARM(flatpanel, "i");
MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
MODULE_PARM(forceCRTC, "i");
MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");

#ifdef CONFIG_MTRR
MODULE_PARM(nomtrr, "i");
MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
#endif
#endif /* MODULE */

MODULE_AUTHOR("Ani Joshi, maintainer");
MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
MODULE_LICENSE("GPL");

Subversion Repositories shark

(root)/shark/trunk/drivers/fb/riva/fbdev.c - Rev 472