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linux/drivers/video/fbdev/riva/fbdev.c
Thomas Zimmermann d850f1c33a fbdev/rivafb: Use hardware device as backlight parent 
Use the hardware device in struct fb_info.device as parent of the
backlight device. Aligns the driver with the rest of the codebase
and prepares fbdev for making struct fb_info.dev optional.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Antonino Daplas <adaplas@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-25-tzimmermann@suse.de
2023-06-27 09:58:50 +02:00

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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/aperture.h>
#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_PMAC_BACKLIGHT
#include <asm/machdep.h>
#include <asm/backlight.h>
#endif
#include "rivafb.h"
#include "nvreg.h"
/* 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", __func__)
#define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __func__)
#ifdef CONFIG_FB_RIVA_DEBUG
#define assert(expr) \
if(!(expr)) { \
printk( "Assertion failed! %s,%s,%s,line=%d\n",\
#expr,__FILE__,__func__,__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 const 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 = -1; /* Autodetect later */
static int forceCRTC = -1;
static bool noaccel = 0;
static bool nomtrr = 0;
static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT);
static char *mode_option = NULL;
static bool strictmode = 0;
static struct fb_fix_screeninfo rivafb_fix = {
.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,
.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 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 = bl_get_data(bd);
U032 tmp_pcrt, tmp_pmc;
int level = backlight_get_brightness(bd);
tmp_pmc = NV_RD32(par->riva.PMC, 0x10F0) & 0x0000FFFF;
tmp_pcrt = NV_RD32(par->riva.PCRTC0, 0x081C) & 0xFFFFFFFC;
if(level > 0) {
tmp_pcrt |= 0x1;
tmp_pmc |= (1 << 31); /* backlight bit */
tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
}
NV_WR32(par->riva.PCRTC0, 0x081C, tmp_pcrt);
NV_WR32(par->riva.PMC, 0x10F0, tmp_pmc);
return 0;
}
static const struct backlight_ops riva_bl_ops = {
.update_status = riva_bl_update_status,
};
static void riva_bl_init(struct riva_par *par)
{
struct backlight_properties props;
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);
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, info->device, par, &riva_bl_ops,
&props);
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.brightness = bd->props.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
* @data8: 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, par->pdev, 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: standard kernel fb changeable data
* @nom: nom
* @den: 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();
if (!var->pixclock)
return -EINVAL;
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;
fallthrough;
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;
/* 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
* @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_array(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 const 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 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));
}
static int 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 = of_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 = of_get_property(dp, propnames[i], NULL);
if (pedid != NULL) {
par->EDID = (unsigned char *)pedid;
NVTRACE("LCD found.\n");
return 1;
}
}
}
NVTRACE_LEAVE();
return 0;
}
#if defined(CONFIG_FB_RIVA_I2C)
static int riva_get_EDID_i2c(struct fb_info *info)
{
struct riva_par *par = info->par;
struct fb_var_screeninfo var;
int i;
NVTRACE_ENTER();
par->riva.LockUnlock(&par->riva, 0);
riva_create_i2c_busses(par);
for (i = 0; i < 3; i++) {
if (!par->chan[i].par)
continue;
riva_probe_i2c_connector(par, i, &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 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 first mode in database as fallback */
modedb = specs->modedb[0];
/* 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;
}
}
}
var->bits_per_pixel = 8;
riva_update_var(var, &modedb);
}
NVTRACE_LEAVE();
}
static void riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
{
NVTRACE_ENTER();
if (riva_get_EDID_OF(info, pdev)) {
NVTRACE_LEAVE();
return;
}
if (IS_ENABLED(CONFIG_OF))
printk(PFX "could not retrieve EDID from OF\n");
#if 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 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 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 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);
ret = aperture_remove_conflicting_pci_devices(pd, "rivafb");
if (ret)
return ret;
info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
if (!info) {
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_wc(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;
}
if (!nomtrr)
default_par->wc_cookie =
arch_phys_wc_add(rivafb_fix.smem_start,
rivafb_fix.smem_len);
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);
ret = register_framebuffer(info);
if (ret < 0) {
printk(KERN_ERR PFX
"error registering riva framebuffer\n");
goto err_iounmap_screen_base;
}
if (backlight)
riva_bl_init(info->par);
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 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
riva_bl_exit(info);
unregister_framebuffer(info);
arch_phys_wc_del(par->wc_cookie);
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);
NVTRACE_LEAVE();
}
/* ------------------------------------------------------------------------- *
*
* initialization
*
* ------------------------------------------------------------------------- */
#ifndef MODULE
static int 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;
} else if (!strncmp(this_opt, "backlight:", 10)) {
backlight = simple_strtoul(this_opt+10, NULL, 0);
} else if (!strncmp(this_opt, "nomtrr", 6)) {
nomtrr = 1;
} 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 = rivafb_remove,
};
/* ------------------------------------------------------------------------- *
*
* modularization
*
* ------------------------------------------------------------------------- */
static int rivafb_init(void)
{
#ifndef MODULE
char *option = NULL;
#endif
if (fb_modesetting_disabled("rivafb"))
return -ENODEV;
#ifndef MODULE
if (fb_get_options("rivafb", &option))
return -ENODEV;
rivafb_setup(option);
#endif
return pci_register_driver(&rivafb_driver);
}
module_init(rivafb_init);
static void __exit rivafb_exit(void)
{
pci_unregister_driver(&rivafb_driver);
}
module_exit(rivafb_exit);
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)");
module_param(nomtrr, bool, 0);
MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
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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