sstfb.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:61k
- /*
- * linux/drivers/video/sstfb.c -- voodoo graphics frame buffer
- *
- * Copyright (c) 2000-2002 Ghozlane Toumi <gtoumi@laposte.net>
- *
- * Created 15 Jan 2000 by Ghozlane Toumi
- *
- * Contributions (and many thanks) :
- *
- * 03/2001 James Simmons <jsimmons@linux-fbdev.org>
- * 04/2001 Paul Mundt <lethal@chaoticdreams.org>
- * 05/2001 Urs Ganse <ursg@uni.de>
- * (initial work on voodoo2 port, interlace)
- * 09/2002 Helge Deller <deller@gmx.de>
- * (enable driver on big-endian machines (hppa), ioctl fixes)
- *
- *
- * $Id: sstfb.c,v 1.26.4.1 2001/08/29 01:30:37 ghoz Exp $
- */
- /*
- * The voodoo1 has the following memory mapped adress space:
- * 0x000000 - 0x3fffff : registers (4Mb)
- * 0x400000 - 0x7fffff : linear frame buffer (4Mb)
- * 0x800000 - 0xffffff : texture memory (8Mb)
- */
- /*
- * misc notes, TODOs, toASKs, and deep thoughts
- -TODO: at one time or another test that the mode is acceptable by the monitor
- -ASK: I can choose different ordering for the color bitfields (rgba argb ...)
- wich one should i use ? is there any preferred one ? It seems ARGB is
- the one ...
- -TODO: check the error paths . if something get wrong, the error doesn't seem
- to be very well handled...if handled at all.. not good.
- -TODO: in set_var check the validity of timings (hsync vsync)...
- -TODO: check and recheck the use of sst_wait_idle : we dont flush the fifo via
- a nop command . so it's ok as long as the commands we pass don't go
- through the fifo. warning: issuing a nop command seems to need pci_fifo
- -FIXME: in case of failure in the init sequence, be sure we return to a safe
- state.
- -FIXME: 4MB boards have banked memory (FbiInit2 bits 1 & 20)
- -ASK: I stole "inverse" but seems it doesn't work... check what it realy does...
- -TODO: change struct sst_info fb_info from static to array/dynamic
- *
- */
- /*
- * debug info
- * SST_DEBUG : enable debugging
- * SST_DEBUG_REG : debug registers
- * 0 : no debug
- * 1 : dac calls, [un]set_bits, FbiInit
- * 2 : insane debug level (log every register read/write)
- * SST_DEBUG_FUNC : functions
- * 0 : no debug
- * 1 : function call / debug ioctl
- * 2 : variables
- * 3 : flood . you don't want to do that. trust me.
- * SST_DEBUG_VAR : debug display/var structs
- * 0 : no debug
- * 1 : dumps display, fb_var
- * SST_DEBUG_IOCTL : enable sstfb specific ioctls
- * 0 : disable
- * 1 : enable debug ioctls :
- * toggle vga (0x46db) : toggle vga_pass_through
- * fill fb (0x46dc) : fills fb
- * dump var (0x46dd) : logs display[0-5].var
- * test disp (0x46de) : draws a test motif
- */
- /* #define SST_DEBUG */
- #undef SST_DEBUG
- #define SST_DEBUG_REG 0
- #define SST_DEBUG_FUNC 0
- #define SST_DEBUG_VAR 0
- #define SST_DEBUG_IOCTL 1
- /* #define EN_24_32_BPP *//* enable 24/32 bpp functions for testing only */
- #undef EN_24_32_BPP
- /*
- Default video mode .
- 0 800x600@60 took from glide
- 1 640x480@75 took from glide
- 2 1024x768@76 std fb.mode
- 3 640x480@60 glide default */
- #define DEFAULT_MODE 1
- /*
- * Includes
- */
- #include <linux/string.h>
- #include <linux/config.h>
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/tty.h>
- #include <linux/fb.h>
- #include <linux/pci.h>
- #include <linux/delay.h>
- #include <linux/init.h>
- #include <linux/version.h>
- #include <linux/slab.h>
- #include <asm/io.h>
- #include <asm/ioctl.h>
- #include <asm/uaccess.h>
- #include <video/fbcon.h>
- #include <video/fbcon-cfb16.h>
- #ifdef EN_24_32_BPP
- # include <video/fbcon-cfb24.h>
- # include <video/fbcon-cfb32.h>
- #endif
- #include "sstfb.h"
- /* void __Dump_regs(struct sstfb_info *);
- #define Dump_regs __Dump_regs(sst_info) */
- /********/
- /* initialized by setup */
- static int inverse; /* =0 */ /* invert colormap */
- static int vgapass; /* =0 */ /* enable Vga passthrough cable */
- static int mem; /* =0 */ /* mem size in Mb , 0 = autodetect */
- static int clipping = 1; /* use clipping (slower, safer) */
- static int gfxclk; /* =0 */ /* force FBI freq in Mhz . Dangerous */
- static int slowpci; /* =0 */ /* slow PCI settings */
- static int dev = -2; /* specify device (0..n) -2=all -1=none*/
- static char * mode_option ;
- /********/
- int sstfb_init(void);
- int sstfb_setup(char *options);
- static int __devinit sstfb_probe(struct pci_dev *pdev, const struct pci_device_id *id);
- static void __devexit sstfb_remove(struct pci_dev *pdev);
- /* Framebuffer API */
- static int sstfb_open(struct fb_info *info, int user);
- static int sstfb_release(struct fb_info *info, int user);
- static int sstfb_get_fix(struct fb_fix_screeninfo *fix,
- int con, struct fb_info *info);
- static int sstfb_get_var(struct fb_var_screeninfo *var,
- int con, struct fb_info *info);
- static int sstfb_set_var(struct fb_var_screeninfo *var,
- int con, struct fb_info *info);
- static int sstfb_get_cmap(struct fb_cmap *cmap, int kspc,
- int con, struct fb_info *info);
- static int sstfb_set_cmap(struct fb_cmap *cmap, int kspc,
- int con, struct fb_info *info);
- static int sstfb_pan_display(struct fb_var_screeninfo *var,
- int con, struct fb_info *info);
- static int sstfb_ioctl(struct inode *inode, struct file *file,
- u_int cmd, u_long arg, int con,
- struct fb_info *info);
- /* Interface to the low level console driver */
- static int sstfbcon_switch(int con, struct fb_info *info);
- static int sstfbcon_updatevar(int con, struct fb_info *info);
- static void sstfbcon_blank(int blank, struct fb_info *info);
- /* Internal routines */
- static void sstfb_install_cmap(int con, struct fb_info *info);
- static int sstfb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp, struct fb_info *info);
- static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info);
- static int sstfb_set_par(const struct sstfb_par *par,
- struct sstfb_info *sst_info);
- static int sstfb_decode_var (const struct fb_var_screeninfo *var,
- struct sstfb_par *par,
- const struct sstfb_info *sst_info);
- static int sstfb_encode_var (struct fb_var_screeninfo *var,
- const struct sstfb_par *par,
- const struct sstfb_info *sst_info);
- static void sstfb_test16(struct sstfb_info *sst_info);
- #ifdef EN_24_32_BPP
- static void sstfb_test32(struct sstfb_info *sst_info);
- #endif
- /* Low level routines */
- static int sst_get_memsize(struct sstfb_info *sst_info, u_long *memsize);
- static int __sst_wait_idle(u_long vbase);
- #define sst_wait_idle() __sst_wait_idle(sst_info->mmio.vbase)
- static int sst_detect_dactype(struct sstfb_info *sst_info);
- static int sst_detect_att(struct sstfb_info *sst_info);
- static int sst_detect_ti(struct sstfb_info *sst_info);
- static int sst_detect_ics(struct sstfb_info *sst_info);
- static int sst_calc_pll(const int freq, int *freq_out, struct pll_timing *t);
- static int sst_set_pll_att_ti(struct sstfb_info *sst_info, const struct pll_timing *t, const int clock);
- static int sst_set_pll_ics(struct sstfb_info *sst_info, const struct pll_timing *t, const int clock);
- static void sst_set_vidmod_att_ti(struct sstfb_info *sst_info, const int bpp);
- static void sst_set_vidmod_ics(struct sstfb_info *sst_info, const int bpp);
- static int sst_init(struct sstfb_info *sst_info);
- static void sst_shutdown(struct sstfb_info *sst_info);
- static struct fb_ops sstfb_ops = {
- owner : THIS_MODULE,
- fb_open: sstfb_open,
- fb_release: sstfb_release,
- fb_get_fix: sstfb_get_fix,
- fb_get_var: sstfb_get_var,
- fb_set_var: sstfb_set_var,
- fb_get_cmap: sstfb_get_cmap,
- fb_set_cmap: sstfb_set_cmap,
- fb_pan_display: sstfb_pan_display,
- fb_ioctl: sstfb_ioctl,
- };
- enum {
- ID_VOODOO1 = 0,
- ID_VOODOO2 = 1,
- };
- #define IS_VOODOO2(info) ((info)->type == ID_VOODOO2 )
- static struct sst_spec voodoo_spec[] __devinitdata = {
- { name : "Voodoo Graphics",
- default_gfx_clock : 50000,
- max_gfxclk : 60, },
- { name : "Voodoo2",
- default_gfx_clock : 75000,
- max_gfxclk : 85, },
- };
- static struct pci_device_id sstfb_id_tbl[] __devinitdata = {
- { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_VOODOO1 },
- { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_VOODOO2 },
- { 0 },
- };
- static struct pci_driver sstfb_driver = {
- name: "sstfb",
- id_table: sstfb_id_tbl,
- probe: sstfb_probe,
- remove: __devexit_p(sstfb_remove),
- };
- static struct fb_var_screeninfo sstfb_default =
- #if ( DEFAULT_MODE == 0 )
- { /* 800x600@60, 16 bpp .borowed from glide/sst1/include/sst1init.h */
- 800, 600, 800, 600, 0, 0, 16, 0,
- {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0,
- 25000, 86, 41, 23, 1, 127, 4,
- 0, FB_VMODE_NONINTERLACED };
- #endif
- #if ( DEFAULT_MODE == 1 )
- {/* 640x480@75, 16 bpp .borowed from glide/sst1/include/sst1init.h */
- 640, 480, 640, 480, 0, 0, 16, 0,
- {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0,
- 31746, 118, 17, 16, 1, 63, 3,
- 0, FB_VMODE_NONINTERLACED };
- #endif
- #if ( DEFAULT_MODE == 2 )
- { /* 1024x768@76 took from my /etc/fb.modes */
- 1024, 768, 1024, 768,0, 0, 16,0,
- {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0,
- 11764, 208, 8, 36, 16, 120, 3 ,
- 0, FB_VMODE_NONINTERLACED };
- #endif
- #if ( DEFAULT_MODE == 3 )
- { /* 640x480@60 , 16bpp glide default ?*/
- 640, 480, 640, 480, 0, 0, 16, 0,
- {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0,
- 39721 , 38, 26 , 25 ,18 , 96 ,2,
- 0, FB_VMODE_NONINTERLACED };
- #endif
- static struct dac_switch dacs[] __devinitdata = {
- { name: "TI TVP3409",
- detect: sst_detect_ti,
- set_pll: sst_set_pll_att_ti,
- set_vidmod: sst_set_vidmod_att_ti },
- { name: "AT&T ATT20C409",
- detect: sst_detect_att,
- set_pll: sst_set_pll_att_ti,
- set_vidmod: sst_set_vidmod_att_ti },
- { name: "ICS ICS5342",
- detect: sst_detect_ics,
- set_pll: sst_set_pll_ics,
- set_vidmod: sst_set_vidmod_ics },
- };
- /*
- *
- * Definitions
- *
- */
- #if (SST_DEBUG_VAR > 0)
- /* debug info / dump a fb_var_screeninfo */
- static void sst_dbg_print_var(struct fb_var_screeninfo *var) {
- dprintk(" {%d, %d, %d, %d, %d, %d, %d, %d,n",
- var->xres, var->yres, var->xres_virtual, var->yres_virtual,
- var->xoffset, var->yoffset,
- var->bits_per_pixel, var->grayscale);
- dprintk(" {%d, %d, %d}, {%d, %d, %d}, {%d, %d, %d}, {%d, %d, %d},n",
- var->red.offset, var->red.length, var->red.msb_right,
- var->green.offset, var->green.length, var->green.msb_right,
- var->blue.offset, var->blue.length, var->blue.msb_right,
- var->transp.offset, var->transp.length,
- var->transp.msb_right);
- dprintk(" %d, %d, %d, %d, %d,n",
- var->nonstd, var->activate,
- var->height, var->width, var->accel_flags);
- dprintk(" %d, %d, %d, %d, %d, %d, %d,n",
- var->pixclock, var->left_margin, var->right_margin,
- var->upper_margin, var->lower_margin,
- var->hsync_len, var->vsync_len);
- dprintk(" %#x, %#x}n",var->sync, var->vmode);
- }
- #endif /* (SST_DEBUG_VAR > 0) */
- #if (SST_DEBUG_REG > 0)
- static void sst_dbg_print_read_reg (u32 reg, u32 val) {
- char * regname =NULL;
- switch (reg) {
- case FBIINIT0: regname="FbiInit0"; break;
- case FBIINIT1: regname="FbiInit1"; break;
- case FBIINIT2: regname="FbiInit2"; break;
- case FBIINIT3: regname="FbiInit3"; break;
- case FBIINIT4: regname="FbiInit4"; break;
- case FBIINIT5: regname="FbiInit5"; break;
- case FBIINIT6: regname="FbiInit6"; break;
- }
- if (regname == NULL)
- r_ddprintk("sst_read(%#x): %#xn", reg, val);
- else
- r_dprintk(" sst_read(%s): %#xn", regname, val);
- }
- static void sst_dbg_print_write_reg (u32 reg, u32 val) {
- char * regname = NULL;
- switch (reg) {
- case FBIINIT0: regname="FbiInit0"; break;
- case FBIINIT1: regname="FbiInit1"; break;
- case FBIINIT2: regname="FbiInit2"; break;
- case FBIINIT3: regname="FbiInit3"; break;
- case FBIINIT4: regname="FbiInit4"; break;
- case FBIINIT5: regname="FbiInit5"; break;
- case FBIINIT6: regname="FbiInit6"; break;
- }
- if (regname == NULL)
- r_ddprintk("sst_write(%#x, %#x)n", reg, val);
- else
- r_dprintk(" sst_write(%s, %#x)n", regname, val);
- }
- #else /* (SST_DEBUG_REG > 0) */
- # define sst_dbg_print_read_reg(reg, val) do {}while(0)
- # define sst_dbg_print_write_reg(reg, val) do {}while(0)
- #endif /* (SST_DEBUG_REG > 0) */
- /* register access */
- #define sst_read(reg) __sst_read(sst_info->mmio.vbase, reg)
- #define sst_write(reg,val) __sst_write(sst_info->mmio.vbase, reg, val)
- #define sst_set_bits(reg,val) __sst_set_bits(sst_info->mmio.vbase, reg, val)
- #define sst_unset_bits(reg,val) __sst_unset_bits(sst_info->mmio.vbase, reg, val)
- #define sst_dac_read(reg) __sst_dac_read(sst_info->mmio.vbase, reg)
- #define sst_dac_write(reg,val) __sst_dac_write(sst_info->mmio.vbase, reg, val)
- #define dac_i_read(reg) __dac_i_read(sst_info->mmio.vbase, reg)
- #define dac_i_write(reg,val) __dac_i_write(sst_info->mmio.vbase, reg, val)
- static inline u32 __sst_read(u_long vbase, u32 reg)
- {
- u32 ret;
- ret = readl(vbase + reg);
- sst_dbg_print_read_reg(reg, ret);
- return ret;
- }
- static inline void __sst_write(u_long vbase, u32 reg, u32 val)
- {
- sst_dbg_print_write_reg(reg, val);
- writel(val, vbase + reg);
- }
- static inline void __sst_set_bits(u_long vbase, u32 reg, u32 val)
- {
- r_dprintk("sst_set_bits(%#x, %#x)n", reg, val);
- __sst_write(vbase, reg, __sst_read(vbase, reg) | val);
- }
- static inline void __sst_unset_bits(u_long vbase, u32 reg, u32 val)
- {
- r_dprintk("sst_unset_bits(%#x, %#x)n", reg, val);
- __sst_write(vbase, reg, __sst_read(vbase, reg) & ~val);
- }
- /* dac access */
- /* dac_read should be remaped to FbiInit2 (via the pci reg init_enable) */
- static u8 __sst_dac_read(u_long vbase, u8 reg)
- {
- u8 ret;
- #ifdef SST_DEBUG
- if ((reg & 0x07) != reg) {
- dprintk("bug line %d: register adress '%d' is too highn",
- __LINE__,reg);
- }
- #endif
- reg &= 0x07;
- __sst_write(vbase, DAC_DATA, ((u32)reg << 8) | DAC_READ_CMD );
- __sst_wait_idle(vbase);
- /*udelay(10);*/
- ret=(__sst_read(vbase, DAC_READ) & 0xff);
- r_dprintk("sst_dac_read(%#x): %#xn", reg, ret);
- return (u8)ret;
- }
- static void __sst_dac_write(u_long vbase, u8 reg, u8 val)
- {
- r_dprintk("sst_dac_write(%#x, %#x)n", reg, val);
- #ifdef SST_DEBUG
- if ((reg & 0x07) != reg)
- dprintk("bug line %d: register adress '%d' is too highn",
- __LINE__,reg);
- #endif
- reg &= 0x07;
- __sst_write(vbase, DAC_DATA,(((u32)reg << 8)) | (u32)val);
- }
- /* indexed access to ti/att dacs */
- static u32 __dac_i_read(u_long vbase, u8 reg)
- {
- u32 ret;
- __sst_dac_write(vbase, DACREG_ADDR_I, reg);
- ret = __sst_dac_read(vbase, DACREG_DATA_I);
- r_dprintk("sst_dac_read_i(%#x): %#xn", reg, ret);
- return ret;
- }
- static void __dac_i_write(u_long vbase, u8 reg,u8 val)
- {
- r_dprintk("sst_dac_write_i(%#x, %#x)n", reg, val);
- __sst_dac_write(vbase, DACREG_ADDR_I, reg);
- __sst_dac_write(vbase, DACREG_DATA_I, val);
- }
- /*
- *
- * Internal routines
- *
- */
- static void sstfb_install_cmap(int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- f_dprintk("sstfb_install_cmap(con: %d)n",con);
- f_ddprintk("currcon: %dn", sst_info->currcon);
- if (con != sst_info->currcon)
- return;
- if (fb_display[con].cmap.len)
- fb_set_cmap(&fb_display[con].cmap, 1, sstfb_setcolreg, info);
- else
- fb_set_cmap(
- fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- 1, sstfb_setcolreg, info);
- #undef sst_info
- }
- static int sstfb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- f_dddprintk("sstfb_getcolregn");
- if (regno >= 16) return 1;
- *red = sst_info->palette[regno].red;
- *green = sst_info->palette[regno].green;
- *blue = sst_info->palette[regno].blue;
- *transp = sst_info->palette[regno].transp;
- f_dddprintk("%-2d rvba: %#x, %#x, %#x, %#xn",
- regno,*red, *green, *blue, *transp);
- return 0;
- #undef sst_info
- }
- static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- u32 col;
- struct display * disp;
- f_dddprintk("sstfb_setcolregn");
- f_dddprintk("%-2d rvba: %#x, %#x, %#x, %#xn",
- regno, red, green, blue, transp);
- if (regno >= 16) return 1;
- sst_info->palette[regno].red = red;
- sst_info->palette[regno].green = green;
- sst_info->palette[regno].blue = blue;
- sst_info->palette[regno].transp= transp;
- disp=&sst_info->disp;
- red >>= (16 - disp->var.red.length);
- green >>= (16 - disp->var.green.length);
- blue >>= (16 - disp->var.blue.length);
- transp >>= (16 - disp->var.transp.length);
- col = (red << disp->var.red.offset)
- | (green << disp->var.green.offset)
- | (blue << disp->var.blue.offset)
- | (transp << disp->var.transp.offset);
- switch(disp->var.bits_per_pixel) {
- #ifdef FBCON_HAS_CFB16
- case 16:
- sst_info->fbcon_cmap.cfb16[regno]=(u16)col;
- break;
- #endif
- #ifdef EN_24_32_BPP
- #ifdef FBCON_HAS_CFB24
- case 24:
- sst_info->fbcon_cmap.cfb32[regno]=col;
- break;
- #endif
- #ifdef FBCON_HAS_CFB32
- case 32:
- sst_info->fbcon_cmap.cfb32[regno]=col;
- break;
- #endif
- #endif
- default:
- eprintk("bug line %d: bad depth '%u'n",__LINE__,
- disp->var.bits_per_pixel);
- break;
- }
- f_dddprintk("bpp: %d . encoded color: %#xn",
- disp->var.bits_per_pixel, col);
- return 0;
- #undef sst_info
- }
- /* set par according to var ( checks var ) */
- static int sstfb_decode_var (const struct fb_var_screeninfo *var,
- struct sstfb_par *par,
- const struct sstfb_info *sst_info)
- {
- int real_length;
- f_dprintk("sstfb_decode_varn");
- /* Check var validity */
- par->valid=0;
- memset(par, 0, sizeof(par));
- par->xDim = var->xres;
- par->hSyncOn = var->hsync_len;
- par->hSyncOff = var->xres + var->right_margin + var->left_margin;
- par->hBackPorch = var->left_margin;
- par->yDim = var->yres;
- par->vSyncOn = var->vsync_len;
- par->vSyncOff = var->yres + var->lower_margin + var->upper_margin;
- par->vBackPorch = var->upper_margin;
- if(sst_calc_pll (PS2KHZ(var->pixclock), &par->freq, &par->pll)) {
- eprintk("Pixclock %d out of rangen", var->pixclock);
- return -EINVAL; //XXX
- }
- par->sync=var->sync & (FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT);
- par->vmode=var->vmode & (FB_VMODE_INTERLACED | FB_VMODE_DOUBLE);
- /* in laced mode, vBackPorch should be even. odd -> funky display */
- if (par->vmode & FB_VMODE_INTERLACED)
- par->vBackPorch += (par->vBackPorch % 2);
- if (par->vmode & FB_VMODE_DOUBLE) {
- par->vBackPorch <<= 1;
- par->yDim <<=1;
- par->vSyncOn <<=1;
- par->vSyncOff <<=1;
- }
- switch (var->bits_per_pixel) {
- case 0 ... 16 :
- par->bpp = 16;
- break;
- #ifdef EN_24_32_BPP
- case 17 ... 24 :
- par->bpp = 24;
- break;
- case 25 ... 32 :
- par->bpp = 32;
- break;
- #endif
- default :
- eprintk ("Unsupported bpp %dn", par->bpp);
- return -EINVAL;
- break;
- }
- if (IS_VOODOO2(sst_info)) {
- /* voodoo2 has 32 pixel wide tiles , BUT stange things
- happen with odd number of tiles */
- par->tiles_in_X= (par->xDim + 63 ) / 64 * 2;
- } else {
- /* voodoo1 has 64 pixels wide tiles. */
- par->tiles_in_X= (par->xDim + 63 ) / 64;
- }
- /* validity tests */
- if((par->xDim <= 1) || (par->yDim <= 0 )
- || (par->hSyncOn <= 1)
- || (par->hSyncOff <= 1)
- || (par->hBackPorch <= 2)
- || (par->vSyncOn <= 0)
- || (par->vSyncOff <= 0)
- || (par->vBackPorch <= 0)
- || (par->tiles_in_X <= 0)) {
- return -EINVAL;
- }
- if (IS_VOODOO2(sst_info)) {
- /* Voodoo 2 limits */
- if(((par->xDim-1) >= POW2(11)) || (par->yDim >= POW2(11))) {
- eprintk ("Unsupported resolution %dx%dn",
- var->xres, var->yres);
- return -EINVAL;
- }
- if (((par->hSyncOn-1) >= POW2(9))
- || ((par->hSyncOff-1) >= POW2(11))
- || ((par->hBackPorch-2) >= POW2(9))
- || (par->vSyncOn >= POW2(13))
- || (par->vSyncOff >= POW2(13))
- || (par->vBackPorch >= POW2(9))
- || (par->tiles_in_X >= POW2(6))) {
- eprintk ("Unsupported Timingn");
- return -EINVAL;
- }
- } else {
- /* Voodoo limits */
- if (par->vmode) {
- eprintk("Interlace/Doublescan not supported %#xn",
- par->vmode);
- return -EINVAL;
- }
- if(((par->xDim-1) >= POW2(10)) || (par->yDim >= POW2(10))) {
- eprintk ("Unsupported resolution %dx%dn",
- var->xres, var->yres);
- return -EINVAL;
- }
- if (((par->hSyncOn-1) >= POW2(8))
- || ((par->hSyncOff-1) >= POW2(10))
- || ((par->hBackPorch-2) >= POW2(8))
- || (par->vSyncOn >= POW2(12))
- || (par->vSyncOff >= POW2(12))
- || (par->vBackPorch >= POW2(8))
- || (par->tiles_in_X >= POW2(4))) {
- eprintk ("Unsupported Timingsn");
- return -EINVAL;
- }
- }
- /* it seems that the fbi uses tiles of 64x16 pixels to "map" the mem*/
- /* FIXME: i don't like this... looks wrong*/
- real_length = par->tiles_in_X * (IS_VOODOO2(sst_info) ? 32 : 64 )
- * ((par->bpp == 16) ? 2 : 4);
- if ((real_length * var->yres) > sst_info->video.len) {
- eprintk ("Not enough video memoryn");
- return -ENOMEM;
- }
- par->valid=1;
- return 0;
- }
- /* sets var according to par (basicaly, sets sane values) */
- static int sstfb_encode_var (struct fb_var_screeninfo *var,
- const struct sstfb_par *par,
- const struct sstfb_info *sst_info)
- {
- memset(var,0,sizeof(struct fb_var_screeninfo));
- var->xres = par->xDim;
- var->yres = par->yDim;
- var->xres_virtual = par->xDim;
- var->yres_virtual = par->yDim;
- var->bits_per_pixel = par->bpp;
- /* {x|y}offset = 0 ; sync=0 */
- var->height = -1;
- var->width = -1;
- var->pixclock = KHZ2PS(par->freq);
- var->left_margin = par->hBackPorch;
- var->right_margin = par->hSyncOff - par->xDim - par->hBackPorch;
- var->upper_margin = par->vBackPorch;
- var->lower_margin = par->vSyncOff - par->yDim - par->vBackPorch;
- var->hsync_len = par->hSyncOn;
- var->vsync_len = par->vSyncOn;
- var->sync = par->sync;
- var->vmode = par->vmode;
- if (var->vmode & FB_VMODE_DOUBLE) {
- var->yres >>=1;
- var->yres_virtual >>=1;
- var->vsync_len >>=1;
- var->upper_margin >>=1;
- var->lower_margin >>=1;
- }
- /*
- * correct the color bit fields
- */
- /* var->{red|green|blue}.msb_right = 0; */
- switch (par->bpp) {
- case 16: /* RGB 565 LfbMode 0 */
- var->red.length = 5;
- var->green.length = 6;
- var->blue.length = 5;
- var->transp.length = 0;
- var->red.offset = 11;
- var->green.offset = 5;
- var->blue.offset = 0;
- var->transp.offset = 0;
- break;
- #ifdef EN_24_32_BPP
- case 24: /* RGB 888 LfbMode 4 */
- case 32: /* ARGB 8888 LfbMode 5 */
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- var->transp.length = 0;
- var->red.offset = 16;
- var->green.offset = 8;
- var->blue.offset = 0;
- var->transp.offset = 0; /* in 24bpp we fake a 32 bpp mode */
- break;
- #endif
- default:
- eprintk ("bug line %d: bad depth '%u'n", __LINE__, par->bpp);
- break;
- }
- return 0;
- }
- /*
- * Frame buffer API
- */
- static int sstfb_open(struct fb_info *info, int user)
- {
- f_dprintk("sstfb_open(user: %d)n",user);
- return 0;
- }
- static int sstfb_release(struct fb_info *info, int user)
- {
- f_dprintk("sstfb_release(user: %d)n",user);
- return 0;
- }
- static int sstfb_get_fix(struct fb_fix_screeninfo *fix,
- int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- struct fb_var_screeninfo *var;
- struct fb_var_screeninfo var2;
- f_dprintk("sstfb_get_fix(con: %d)n",con);
- memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-
- if (con == -1)
- {
- sstfb_encode_var(&var2, &sst_info->current_par, sst_info);
- var = &var2;
- }
- else
- var = &fb_display[con].var;
- strcpy(fix->id, sst_info->info.modename);
- /* lfb phys address = membase + 4Mb */
- fix->smem_start = sst_info->video.base;
- fix->smem_len = sst_info->video.len;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->visual = FB_VISUAL_TRUECOLOR;
- fix->accel = FB_ACCEL_NONE;
- /*
- * According to the specs, the linelength must be of 1024 *pixels*.
- * and the 24bpp mode is in fact a 32 bpp mode.
- */
- fix->line_length = (var->bits_per_pixel == 16) ? 2048 : 4096 ;
- return 0;
- #undef sst_info
- }
- static int sstfb_get_var(struct fb_var_screeninfo *var,
- int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- f_dprintk("sstfb_get_var(con: %d)n",con);
- if (con == -1)
- sstfb_encode_var(var, &sst_info->current_par, sst_info);
- else
- *var = fb_display[con].var;
- print_var(var, "var");
- return 0;
- #undef sst_info
- }
- static int sstfb_set_var(struct fb_var_screeninfo *var,
- int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- struct sstfb_par par;
- struct display *display;
- int err;
- int old_bpp,old_xres,old_yres;
- f_dprintk("sstfb_set_var(con: %d)n",con);
- f_ddprintk("xres yres vxres vyres bpp activaten");
- f_ddprintk("%-4d %-4d %-5d %-5d %-3d %#-8xn",
- var->xres,var->yres,var->xres_virtual,var->yres_virtual,
- var->bits_per_pixel,var->activate);
- if (con < 0)
- display = &sst_info->disp;
- else
- display = &fb_display[con];
- if ((err = sstfb_decode_var(var, &par, sst_info)))
- return err;
- sstfb_encode_var (var, &par, sst_info);
- switch (var->activate & FB_ACTIVATE_MASK) {
- case FB_ACTIVATE_TEST:
- return 0;
- case FB_ACTIVATE_NXTOPEN:
- case FB_ACTIVATE_NOW:
- break;
- default:
- return -EINVAL;
- }
- old_xres = display->var.xres;
- old_yres = display->var.yres;
- old_bpp = display->var.bits_per_pixel;
- display->var = *var;
- if ((old_xres != var->xres) || (old_yres != var->yres)
- || (old_bpp != var->bits_per_pixel)) {
- /* 2-3 lignes redondantes avec get_fix */
- display->screen_base = (char *) sst_info->video.vbase;
- display->visual = FB_VISUAL_TRUECOLOR;
- display->type = FB_TYPE_PACKED_PIXELS;
- display->type_aux = 0;
- display->ypanstep = 0;
- display->ywrapstep = 0;
- display->line_length = (var->bits_per_pixel==16) ? 2048 : 4096;
- display->inverse = 0;
- switch (var->bits_per_pixel) {
- #ifdef FBCON_HAS_CFB16
- case 16:
- display->dispsw = &fbcon_cfb16;
- display->dispsw_data = sst_info->fbcon_cmap.cfb16;
- break;
- #endif
- #ifdef EN_24_32_BPP
- #if defined (FBCON_HAS_CFB24) || defined (FBCON_HAS_CFB32 )
- case 24: /*24bpp non packed <=> 32 bpp */
- case 32:
- display->dispsw = &fbcon_cfb32;
- display->dispsw_data = sst_info->fbcon_cmap.cfb32;
- break;
- #endif
- #endif
- default:
- display->dispsw = &fbcon_dummy;
- break;
- }
- display->scrollmode = SCROLL_YREDRAW;
- if (sst_info->info.changevar) {
- v_dprintk("fb_info.changevar(con: %d)n", con);
- (*sst_info->info.changevar)(con);
- v_dprintk("fb_info.changevar: done n");
- } else {
- v_dprintk("fb_info.changevar() == NULL . n");
- }
- }
- if ((con == -1) || (con==sst_info->currcon)) {
- sstfb_set_par (&par, sst_info);
- }
- print_var(var, "var");
- print_var(&display->var, "&display->var");
- if (old_bpp != var->bits_per_pixel) {
- if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
- return err;
- sstfb_install_cmap(con, info);
- }
- return 0;
- #undef sst_info
- }
- static int sstfb_set_cmap(struct fb_cmap *cmap, int kspc,
- int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- struct display *d = (con<0) ? info->disp : fb_display + con;
- f_dprintk("sstfb_set_cmapn");
- f_ddprintk("con: %d, currcon: %d, d->cmap.len %dn",
- con, sst_info->currcon, d->cmap.len);
- if (d->cmap.len != 16 ) { /* or test if cmap.len == 0 ? */
- int err;
- err = fb_alloc_cmap(&d->cmap, 16, 0); /* cmap size=16 */
- if (err) return err;
- }
- if (con == sst_info->currcon) {
- return fb_set_cmap(cmap, kspc, sstfb_setcolreg, info);
- } else {
- fb_copy_cmap(cmap, &d->cmap, kspc ? 0 : 1);
- }
- return 0;
- #undef sst_info
- }
- static int sstfb_get_cmap(struct fb_cmap *cmap, int kspc,
- int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- f_dprintk("sstfb_get_cmapn");
- f_ddprintk("con %d, curcon %d, cmap.len %dn",
- con, sst_info->currcon, fb_display[con].cmap.len);
- /* FIXME: check if con = -1 ? cf sstfb_set_cmap... */
- if (con == sst_info->currcon)
- return fb_get_cmap(cmap, kspc, sstfb_getcolreg, info);
- else if (fb_display[con].cmap.len)
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- else
- fb_copy_cmap(
- fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- cmap, kspc ? 0 : 2);
- return 0;
- #undef sst_info
- }
- /* TODO */
- static int sstfb_pan_display(struct fb_var_screeninfo *var,
- int con, struct fb_info *info)
- {
- f_dprintk("sstfb_pan_displayn");
- return -EINVAL;
- }
- static int sstfb_ioctl(struct inode *inode, struct file *file,
- u_int cmd, u_long arg, int con,
- struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- #if (SST_DEBUG_IOCTL >0)
- int i;
- u_long p;
- u32 tmp, val;
- u32 fbiinit0;
- struct pci_dev * sst_dev = sst_info->dev;
- #endif
- f_dprintk("sstfb_ioctl(%x)n", cmd);
- #if (SST_DEBUG_IOCTL >0)
- switch (cmd) {
- # if (SST_DEBUG_VAR >0)
- /* tmp ioctl : dumps fb_display[0-5] */
- case _IO('F', 0xdb): /* 0x46db */
- f_dprintk("dumping fb_display[0-5].varn");
- for (i = 0 ; i< 6 ; i++) {
- print_var(&fb_display[i].var, "var(%d)", i);
- }
- return 0;
- # endif /* (SST_DEBUG_VAR >0) */
- /* fills the lfb up to *(u32*)arg */
- case _IOW('F', 0xdc, u32): /* 0x46dc */
- if (copy_from_user(&val, (void *) arg, sizeof(val)))
- return -EFAULT;
- if (val > 0x400000 )
- val = 0x400000;
- f_dprintk("filling %#x n", val);
- for (p = 0 ; p < val; p+=2)
- writew( p >> 6 , sst_info->video.vbase + p);
- return 0;
- /* change VGA pass_through */
- case _IOW('F', 0xdd, u32): /* 0x46dd */
- if (copy_from_user(&val, (void *) arg, sizeof(val)))
- return -EFAULT;
- f_dprintk("switch VGA pass-throughn");
- pci_read_config_dword(sst_dev, PCI_INIT_ENABLE, &tmp);
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- tmp | PCI_EN_INIT_WR );
- fbiinit0 = sst_read (FBIINIT0);
- if (val) {
- sst_write(FBIINIT0, fbiinit0 & ~EN_VGA_PASSTHROUGH);
- iprintk ( "Disabling VGA pass-throughn");
- } else {
- sst_write(FBIINIT0, fbiinit0 | EN_VGA_PASSTHROUGH);
- iprintk ( "Enabling VGA pass-throughn");
- }
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
- return 0;
- case _IO('F', 0xde): /* 0x46de */
- f_dprintk("test color displayn");
- f_ddprintk("currcon: %d, bpp %dn", sst_info->currcon,
- sst_info->current_par.bpp);
- memset_io(sst_info->video.vbase, 0, sst_info->video.len);
- switch (sst_info->current_par.bpp) {
- case 16:
- sstfb_test16(sst_info);
- break;
- # ifdef EN_24_32_BPP
- case 24:
- case 32:
- sstfb_test32(sst_info);
- break;
- # endif
- default:
- dprintk("bug line %d: bad depth '%u'n", __LINE__,
- sst_info->current_par.bpp);
- }
- return 0;
- }
- #endif /* (SST_DEBUG_IOCTL >0) */
- return -EINVAL;
- #undef sst_info
- }
- /*
- * Low level routines
- */
- /* get lfb size */
- static int __devinit sst_get_memsize(struct sstfb_info *sst_info, u_long *memsize)
- {
- u_long fbbase_virt = sst_info->video.vbase;
- f_dprintk("sst_get_memsizen");
- /* force memsize */
- if ((mem >= 1 ) && (mem <= 4)) {
- *memsize = (mem * 0x100000);
- iprintk("supplied memsize: %#lxn", *memsize);
- return 1;
- }
- writel (0xdeadbeef, fbbase_virt);
- writel (0xdeadbeef, fbbase_virt+0x100000);
- writel (0xdeadbeef, fbbase_virt+0x200000);
- f_ddprintk("0Mb: %#x, 1Mb: %#x, 2Mb: %#xn",
- readl(fbbase_virt), readl(fbbase_virt + 0x100000),
- readl(fbbase_virt + 0x200000));
- writel (0xabcdef01, fbbase_virt);
- f_ddprintk("0Mb: %#x, 1Mb: %#x, 2Mb: %#xn",
- readl(fbbase_virt), readl(fbbase_virt + 0x100000),
- readl(fbbase_virt + 0x200000));
- /* checks for 4mb lfb , then 2, then defaults to 1*/
- if (readl(fbbase_virt + 0x200000) == 0xdeadbeef) {
- *memsize = 0x400000;
- } else if (readl(fbbase_virt + 0x100000) == 0xdeadbeef) {
- *memsize = 0x200000;
- } else {
- *memsize = 0x100000;
- }
- f_ddprintk("detected memsize: %#lxn", *memsize);
- return 1;
- }
- /*
- * wait for the fbi chip. ASK: what happens if the fbi is stuck ?
- *
- * the FBI is supposed to be ready if we receive 5 time
- * in a row a "idle" answer to our requests
- */
- static int __sst_wait_idle(u_long vbase)
- {
- int count = 0;
- f_ddprintk("sst_wait_idlen");
- while(1) {
- if (__sst_read(vbase, STATUS) & STATUS_FBI_BUSY) {
- f_dddprintk("status: busyn");
- /* FIXME basicaly, this is a busy wait. maybe not that good. oh well; this is a small loop after all ...*/
- count = 0;
- } else {
- count++;
- f_dddprintk("status: idle(%d)n", count);
- }
- if (count >= 5) return 1;
- //XXX do something to avoid hanging the machine if the voodoo is out
- }
- }
- /*
- * detect dac type
- * prerequisite : write to FbiInitx enabled, video and fbi and pci fifo reset,
- * dram refresh disabled, FbiInit remaped.
- * TODO: mmh.. maybe i shoud put the "prerequisite" in the func ...
- */
- static int __devinit sst_detect_dactype(struct sstfb_info * sst_info)
- {
- int ret=0,i;
- f_dprintk("sst_detect_dactypen");
- for (i=0; i< sizeof(dacs)/sizeof(dacs[0]) ; i++) {
- ret = dacs[i].detect(sst_info);
- if (ret) break;
- }
- if (!ret)
- return 0;
- f_dprintk("found %sn", dacs[i].name);
- sst_info->dac_sw=dacs[i];
- return 1;
- }
- /* fbi should be idle, and fifo emty and mem disabled */
- /* supposed to detect AT&T ATT20C409 and Ti TVP3409 ramdacs */
- static int __devinit sst_detect_att(struct sstfb_info * sst_info)
- {
- int i, mir, dir;
- f_dprintk("sst_detect_attn");
- for (i = 0; i<3; i++) {
- sst_dac_write(DACREG_WMA, 0); /* backdoor */
- sst_dac_read(DACREG_RMR); /* read 4 times RMR */
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- /* the fifth time, CR0 is read */
- sst_dac_read(DACREG_RMR);
- /* the 6th, manufacturer id register */
- mir = sst_dac_read(DACREG_RMR);
- /*the 7th, device ID register */
- dir = sst_dac_read(DACREG_RMR);
- f_ddprintk("mir: %#x, dir: %#xn", mir, dir);
- if ((mir == DACREG_MIR_ATT ) && (dir == DACREG_DIR_ATT)) {
- return 1;
- }
- }
- return 0;
- }
- static int __devinit sst_detect_ti(struct sstfb_info * sst_info)
- {
- int i, mir, dir;
- f_dprintk("sst_detect_tin");
- for (i = 0; i<3; i++) {
- sst_dac_write(DACREG_WMA, 0); /* backdoor */
- sst_dac_read(DACREG_RMR); /* read 4 times RMR */
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- /* the fifth time, CR0 is read */
- sst_dac_read(DACREG_RMR);
- /* the 6th, manufacturer id register */
- mir = sst_dac_read(DACREG_RMR);
- /*the 7th, device ID register */
- dir = sst_dac_read(DACREG_RMR);
- f_ddprintk("mir: %#x, dir: %#xn", mir, dir);
- if ((mir == DACREG_MIR_TI ) && (dir == DACREG_DIR_TI)) {
- return 1;
- }
- }
- return 0;
- }
- /*
- * try to detect ICS5342 ramdac
- * we get the 1st byte (M value) of preset f1,f7 and fB
- * why those 3 ? mmmh... for now, i'll do it the glide way...
- * and ask questions later. anyway, it seems that all the freq registers are
- * realy at their default state (cf specs) so i ask again, why those 3 regs ?
- * mmmmh.. it seems that's much more ugly than i thought. we use f0 and fA for
- * pll programming, so in fact, we *hope* that the f1, f7 & fB won't be
- * touched...
- * is it realy safe ? how can i reset this ramdac ? geee...
- */
- static int __devinit sst_detect_ics(struct sstfb_info * sst_info)
- {
- int i;
- int m_clk0_1, m_clk0_7, m_clk1_b;
- int n_clk0_1, n_clk0_7, n_clk1_b;
- f_dprintk("sst_detect_icsn");
- for (i = 0; i<5; i++ ) {
- sst_dac_write(DACREG_ICS_PLLRMA, 0x1); /* f1 */
- m_clk0_1 = sst_dac_read(DACREG_ICS_PLLDATA);
- n_clk0_1 = sst_dac_read(DACREG_ICS_PLLDATA);
- sst_dac_write(DACREG_ICS_PLLRMA, 0x7); /* f7 */
- m_clk0_7 = sst_dac_read(DACREG_ICS_PLLDATA);
- n_clk0_7 = sst_dac_read(DACREG_ICS_PLLDATA);
- sst_dac_write(DACREG_ICS_PLLRMA, 0xb); /* fB */
- m_clk1_b= sst_dac_read(DACREG_ICS_PLLDATA);
- n_clk1_b= sst_dac_read(DACREG_ICS_PLLDATA);
- f_ddprintk("m_clk0_1: %#x, m_clk0_7: %#x, m_clk1_b: %#xn",
- m_clk0_1, m_clk0_7, m_clk1_b);
- f_ddprintk("n_clk0_1: %#x, n_clk0_7: %#x, n_clk1_b: %#xn",
- n_clk0_1, n_clk0_7, n_clk1_b);
- if (( m_clk0_1 == DACREG_ICS_PLL_CLK0_1_INI)
- && (m_clk0_7 == DACREG_ICS_PLL_CLK0_7_INI)
- && (m_clk1_b == DACREG_ICS_PLL_CLK1_B_INI)) {
- return 1;
- }
- }
- return 0;
- }
- /* compute the m,n,p , returns the real freq
- * (ics datasheet : N <-> N1 , P <-> N2)
- *
- * Fout= Fref * (M+2)/( 2^P * (N+2))
- * we try to get close to the asked freq
- * with P as high, and M as low as possible
- * range:
- * ti/att : 0 <= M <= 255; 0 <= P <= 3; 0<= N <= 63
- * ics : 1 <= M <= 127; 0 <= P <= 3; 1<= N <= 31
- * we'll use the lowest limitation, should be precise enouth
- */
- static int sst_calc_pll(const int freq, int *freq_out, struct pll_timing *t)
- {
- int m, m2, n, p, best_err, fout;
- int best_n=-1;
- int best_m=-1;
- f_dprintk("sst_calc_pll(%dKhz)n", freq);
- best_err = freq;
- p=3;
- /* f * 2^P = vco should be less than VCOmax ~ 250 MHz for ics*/
- while (((1 << p) * freq > VCO_MAX) && (p >= 0))
- p--;
- if (p == -1)
- return -EINVAL;
- for (n = 1; n < 32; n++) {
- /* calc 2 * m so we can round it later*/
- m2 = (2 * freq * (1 << p) * (n + 2) ) / DAC_FREF - 4 ;
- m = (m2 % 2 ) ? m2/2+1 : m2/2 ;
- if (m >= 128)
- break;
- fout = (DAC_FREF * (m + 2)) / ((1 << p) * (n + 2));
- if ((ABS(fout - freq) < best_err) && (m > 0)) {
- best_n = n;
- best_m = m;
- best_err = ABS(fout - freq);
- /* we get the lowest m , allowing 0.5% error in freq*/
- if (200*best_err < freq) break;
- }
- }
- if (best_n == -1) /* unlikely, but who knows ? */
- return -EINVAL;
- t->p=p;
- t->n=best_n;
- t->m=best_m;
- *freq_out=(DAC_FREF * (t->m + 2)) / ((1 << t->p) * (t->n + 2));
- f_ddprintk ("m: %d, n: %d, p: %d, F: %dKhzn",
- t->m, t->n, t->p, *freq_out);
- return 0;
- }
- /*
- * gfx, video, pci fifo should be reset, dram refresh disabled
- * see detect_dac
- */
- static int sst_set_pll_att_ti(struct sstfb_info * sst_info, const struct pll_timing *t, const int clock)
- {
- u8 cr0, cc;
- f_dprintk("sst_set_pll_att_tin");
- /* enable indexed mode */
- sst_dac_write(DACREG_WMA, 0); /* backdoor */
- sst_dac_read(DACREG_RMR); /* 1 time: RMR */
- sst_dac_read(DACREG_RMR); /* 2 RMR */
- sst_dac_read(DACREG_RMR); /* 3 // */
- sst_dac_read(DACREG_RMR); /* 4 // */
- cr0 = sst_dac_read(DACREG_RMR); /* 5 CR0 */
- sst_dac_write(DACREG_WMA, 0);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_write(DACREG_RMR, (cr0 & 0xf0)
- | DACREG_CR0_EN_INDEXED
- | DACREG_CR0_8BIT
- | DACREG_CR0_PWDOWN );
- /* so, now we are in indexed mode . dunno if its common, but
- i find this way of doing things a little bit weird :p */
- udelay(300);
- cc = dac_i_read(DACREG_CC_I);
- switch (clock) {
- case VID_CLOCK:
- dac_i_write(DACREG_AC0_I, t->m);
- dac_i_write(DACREG_AC1_I, t->p << 6 | t->n);
- dac_i_write(DACREG_CC_I,
- (cc & 0x0f) | DACREG_CC_CLKA | DACREG_CC_CLKA_C);
- break;
- case GFX_CLOCK:
- dac_i_write(DACREG_BD0_I, t->m);
- dac_i_write(DACREG_BD1_I, t->p << 6 | t->n);
- dac_i_write(DACREG_CC_I,
- (cc & 0xf0) | DACREG_CC_CLKB | DACREG_CC_CLKB_D);
- break;
- default:
- dprintk("bug line %d: wrong clock code '%d'n",
- __LINE__,clock);
- return 0;
- }
- udelay(300);
- /* power up the dac & return to "normal" non-indexed mode */
- dac_i_write(DACREG_CR0_I,
- cr0 & ~DACREG_CR0_PWDOWN & ~DACREG_CR0_EN_INDEXED);
- return 1;
- }
- static int sst_set_pll_ics(struct sstfb_info * sst_info, const struct pll_timing *t, const int clock)
- {
- u8 pll_ctrl;
- f_dprintk("sst_set_pll_icsn");
- sst_dac_write(DACREG_ICS_PLLRMA, DACREG_ICS_PLL_CTRL);
- pll_ctrl = sst_dac_read(DACREG_ICS_PLLDATA);
- switch(clock) {
- case VID_CLOCK:
- sst_dac_write(DACREG_ICS_PLLWMA, 0x0); /* CLK0, f0 */
- sst_dac_write(DACREG_ICS_PLLDATA, t->m);
- sst_dac_write(DACREG_ICS_PLLDATA, t->p << 5 | t->n);
- /* selects freq f0 for clock 0 */
- sst_dac_write(DACREG_ICS_PLLWMA, DACREG_ICS_PLL_CTRL);
- sst_dac_write(DACREG_ICS_PLLDATA,
- (pll_ctrl & 0xd8)
- | DACREG_ICS_CLK0
- | DACREG_ICS_CLK0_0);
- break;
- case GFX_CLOCK :
- sst_dac_write(DACREG_ICS_PLLWMA, 0xa); /* CLK1, fA */
- sst_dac_write(DACREG_ICS_PLLDATA, t->m);
- sst_dac_write(DACREG_ICS_PLLDATA, t->p << 5 | t->n);
- /* selects freq fA for clock 1 */
- sst_dac_write(DACREG_ICS_PLLWMA, DACREG_ICS_PLL_CTRL);
- sst_dac_write(DACREG_ICS_PLLDATA,
- (pll_ctrl & 0xef) | DACREG_ICS_CLK1_A);
- break;
- default:
- dprintk("bug line %d: wrong clock code '%d'n",
- __LINE__, clock);
- return 0;
- }
- udelay(300);
- return 1;
- }
- static int sstfb_set_par(const struct sstfb_par * par, struct sstfb_info * sst_info)
- {
- u32 lfbmode, fbiinit1, fbiinit2, fbiinit3, fbiinit5, fbiinit6=0;
- int ntiles;
- struct pci_dev * sst_dev = sst_info->dev;
- f_dprintk("sst_set_par(%dx%d)n", par->xDim, par->yDim);
- f_ddprintk("hSyncOn hSyncOff vSyncOn vSyncOffn");
- f_ddprintk("%-7d %-8d %-7d %-8dn",
- par->hSyncOn, par->hSyncOff,
- par->vSyncOn, par->vSyncOff);
- f_ddprintk("hBackPorch vBackPorch xDim yDim Freqn");
- f_ddprintk("%-10d %-10d %-4d %-4d %-8dn",
- par->hBackPorch, par->vBackPorch,
- par->xDim, par->yDim, par->freq);
- if (!par->valid) {
- BUG();
- return -1;
- }
- sst_write(NOPCMD, 0);
- sst_wait_idle();
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_INIT_WR);
- sst_set_bits(FBIINIT1, VIDEO_RESET);
- sst_set_bits(FBIINIT0, FBI_RESET | FIFO_RESET);
- sst_unset_bits(FBIINIT2, EN_DRAM_REFRESH);
- sst_wait_idle();
- /*sst_unset_bits (FBIINIT0, FBI_RESET); / reenable FBI ? */
- sst_write(BACKPORCH, par->vBackPorch << 16 | (par->hBackPorch - 2));
- sst_write(VIDEODIMENSIONS, par->yDim << 16 | (par->xDim - 1));
- sst_write(HSYNC, (par->hSyncOff - 1) << 16 | (par->hSyncOn - 1));
- sst_write(VSYNC, par->vSyncOff << 16 | par->vSyncOn);
- fbiinit2=sst_read(FBIINIT2);
- fbiinit3=sst_read(FBIINIT3);
- /* everything is reset. we enable fbiinit2/3 remap : dac acces ok */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR | PCI_REMAP_DAC );
- sst_info->dac_sw.set_vidmod(sst_info, par->bpp);
- /* set video clock */
- sst_info->dac_sw.set_pll(sst_info, &par->pll, VID_CLOCK);
- /* disable fbiinit2/3 remap */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR);
- /* restore fbiinit2/3 */
- sst_write(FBIINIT2,fbiinit2);
- sst_write(FBIINIT3,fbiinit3);
- fbiinit1 = (sst_read(FBIINIT1) & VIDEO_MASK)
- | EN_DATA_OE
- | EN_BLANK_OE
- | EN_HVSYNC_OE
- | EN_DCLK_OE
- /* | (15 << TILES_IN_X_SHIFT)*/
- | SEL_INPUT_VCLK_2X
- /* | (2 << VCLK_2X_SEL_DEL_SHIFT)
- | (2 << VCLK_DEL_SHIFT)*/;
- /* try with vclk_in_delay =0 (bits 29:30) , vclk_out_delay =0 (bits(27:28)
- in (near) future set them accordingly to revision + resolution (cf glide)
- first understand what it stands for :)
- FIXME: there are some artefacts... check for the vclk_in_delay
- lets try with 6ns delay in both vclk_out & in...
- doh... they're still there :
- */
- ntiles = par->tiles_in_X;
- if (IS_VOODOO2(sst_info)) {
- fbiinit1 |= ((ntiles & 0x20) >> 5) << TILES_IN_X_MSB_SHIFT
- | ((ntiles & 0x1e) >> 1) << TILES_IN_X_SHIFT ;
- /* as the only value of importance for us in fbiinit6 is tiles in X (lsb),
- and as reading fbinit 6 will return crap (see FBIINIT6_DEFAULT) we just
- write our value. BTW due to the dac unable to read odd number of tiles, this
- field is always null ... */
- fbiinit6 = (ntiles & 0x1) << TILES_IN_X_LSB_SHIFT;
- }
- else
- fbiinit1 |= ntiles << TILES_IN_X_SHIFT;
- switch(par->bpp) {
- case 16:
- fbiinit1 |= SEL_SOURCE_VCLK_2X_SEL;
- break;
- #ifdef EN_24_32_BPP
- case 24:
- case 32:
- /* orig sst_set_bits(FBIINIT1, SEL_SOURCE_VCLK_2X_DIV2 | EN_24BPP); */
- fbiinit1 |= SEL_SOURCE_VCLK_2X_SEL | EN_24BPP;
- break;
- #endif
- default:
- dprintk("bug line %d: bad depth '%u'n", __LINE__,
- par->bpp );
- return 0;
- break;
- }
- sst_write(FBIINIT1, fbiinit1);
- if (IS_VOODOO2(sst_info)) {
- sst_write(FBIINIT6, fbiinit6);
- fbiinit5=sst_read(FBIINIT5) & FBIINIT5_MASK ;
- if (par->vmode & FB_VMODE_INTERLACED)
- fbiinit5 |= INTERLACE;
- if (par->vmode & FB_VMODE_DOUBLE )
- fbiinit5 |= VDOUBLESCAN;
- if (par->sync & FB_SYNC_HOR_HIGH_ACT)
- fbiinit5 |= HSYNC_HIGH;
- if (par->sync & FB_SYNC_VERT_HIGH_ACT)
- fbiinit5 |= VSYNC_HIGH;
- sst_write(FBIINIT5, fbiinit5);
- }
- sst_wait_idle();
- sst_unset_bits(FBIINIT1, VIDEO_RESET);
- sst_unset_bits(FBIINIT0, FBI_RESET | FIFO_RESET);
- sst_set_bits(FBIINIT2, EN_DRAM_REFRESH);
- /* disables fbiinit writes */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_FIFO_WR);
- /* set lfbmode : set mode + front buffer for reads/writes
- + disable pipeline */
- switch(par->bpp) {
- case 16:
- lfbmode = LFB_565;
- break;
- #ifdef EN_24_32_BPP
- case 24:
- lfbmode = LFB_888;
- break;
- case 32:
- lfbmode = LFB_8888;
- break;
- #endif
- default:
- dprintk("bug line %d: bad depth '%u'n", __LINE__,
- par->bpp );
- return 0;
- break;
- }
- #if defined(__BIG_ENDIAN)
- /* enable byte-swizzle functionality in hardware */
- lfbmode |= ( LFB_WORD_SWIZZLE_WR | LFB_BYTE_SWIZZLE_WR |
- LFB_WORD_SWIZZLE_RD | LFB_BYTE_SWIZZLE_RD );
- #endif
-
- if (clipping) {
- sst_write(LFBMODE, lfbmode | EN_PXL_PIPELINE);
- /*
- * Set "clipping" dimensions. If clipping is disabled and
- * writes to offscreen areas of the framebuffer are performed,
- * the "behaviour is undefined" (_very_ undefined) - Urs
- */
- /* btw, it requires enabling pixel pipeline in LFBMODE .
- off screen read/writes will just wrap and read/print pixels
- on screen. Ugly but not that dangerous */
- f_ddprintk("setting clipping dimensions 0..%d, 0..%dn",
- par->xDim-1, par->yDim-1);
- sst_write(CLIP_LEFT_RIGHT, par->xDim );
- sst_write(CLIP_LOWY_HIGHY, par->yDim );
- sst_set_bits(FBZMODE, EN_CLIPPING | EN_RGB_WRITE);
- } else {
- /* no clipping : direct access, no pipeline */
- sst_write(LFBMODE, lfbmode );
- }
- sst_info->current_par = *par ;
- return 1;
- }
- static void sst_set_vidmod_att_ti(struct sstfb_info * sst_info, const int bpp)
- {
- u8 cr0;
- f_dprintk("sst_set_vidmod_att_ti(bpp: %d)n", bpp);
- sst_dac_write(DACREG_WMA, 0); /* backdoor */
- sst_dac_read(DACREG_RMR); /* read 4 times RMR */
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- /* the fifth time, CR0 is read */
- cr0 = sst_dac_read(DACREG_RMR);
- sst_dac_write(DACREG_WMA, 0); /* backdoor */
- sst_dac_read(DACREG_RMR); /* read 4 times RMR */
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- sst_dac_read(DACREG_RMR);
- /* cr0 */
- switch(bpp) {
- case 16:
- sst_dac_write(DACREG_RMR, (cr0 & 0x0f) | DACREG_CR0_16BPP);
- break;
- #ifdef EN_24_32_BPP
- case 24:
- case 32:
- sst_dac_write(DACREG_RMR, (cr0 & 0x0f) | DACREG_CR0_24BPP);
- break;
- #endif
- default:
- dprintk("bug line %d: bad depth '%u'n", __LINE__, bpp);
- break;
- }
- }
- static void sst_set_vidmod_ics(struct sstfb_info * sst_info, const int bpp)
- {
- f_dprintk("sst_set_vidmod_ics(bpp: %d)n", bpp);
- switch(bpp) {
- case 16:
- sst_dac_write(DACREG_ICS_CMD, DACREG_ICS_CMD_16BPP);
- break;
- #ifdef EN_24_32_BPP
- case 24:
- case 32:
- sst_dac_write(DACREG_ICS_CMD, DACREG_ICS_CMD_24BPP);
- break;
- #endif
- default:
- dprintk("bug line %d: bad depth '%u'n", __LINE__, bpp);
- break;
- }
- }
- static int __devinit sst_init(struct sstfb_info *sst_info)
- {
- struct pll_timing gfx_timings;
- struct sst_spec * spec;
- struct pci_dev * sst_dev = sst_info->dev;
- int Fout;
- u32 fbiinit0, fbiinit1, fbiinit4;
- spec = &voodoo_spec[sst_info->type];
- f_dprintk("sst_initn");
- f_ddprintk(" fbiinit0 fbiinit1 fbiinit2 fbiinit3 fbiinit4 "
- " fbiinit6n");
- f_ddprintk("%0#10x %0#10x %0#10x %0#10x %0#10x %0#10xn",
- sst_read(FBIINIT0), sst_read(FBIINIT1), sst_read(FBIINIT2),
- sst_read(FBIINIT3), sst_read(FBIINIT4), sst_read(FBIINIT6));
- /* disable video clock */
- pci_write_config_dword(sst_dev, PCI_VCLK_DISABLE,0);
- /* enable writing to init registers ,disable pci fifo*/
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_INIT_WR);
- /* reset video */
- sst_set_bits(FBIINIT1, VIDEO_RESET);
- sst_wait_idle();
- /* reset gfx + pci fifo */
- sst_set_bits(FBIINIT0, FBI_RESET | FIFO_RESET);
- sst_wait_idle();
- /* unreset fifo */
- /*sst_unset_bits(FBIINIT0, FIFO_RESET);
- sst_wait_idle();*/
- /* unreset FBI */
- /*sst_unset_bits(FBIINIT0, FBI_RESET);
- sst_wait_idle();*/
- /* disable dram refresh */
- sst_unset_bits(FBIINIT2, EN_DRAM_REFRESH);
- sst_wait_idle();
- /* remap fbinit2/3 to dac */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR | PCI_REMAP_DAC );
- /* detect dac type */
- if (!sst_detect_dactype(sst_info)) {
- eprintk("Unknown dac typen");
- //FIXME watch it : we are not in a safe state , bad bad bad .
- return 0;
- }
- /* set graphic clock */
- sst_info->gfx_clock = spec->default_gfx_clock;
- if ((gfxclk >10 ) && (gfxclk < spec->max_gfxclk)) {
- iprintk ("Using supplied graphic freq : %dMHzn", gfxclk);
- sst_info->gfx_clock = gfxclk *1000;
- } else if (gfxclk) {
- wprintk ("You fool, %dMhz is way out of spec! Using defaultn", gfxclk);
- }
- sst_calc_pll(sst_info->gfx_clock, &Fout, &gfx_timings);
- sst_info->dac_sw.set_pll(sst_info, &gfx_timings, GFX_CLOCK);
- /* disable fbiinit remap */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR| PCI_EN_FIFO_WR );
- /* defaults init registers */
- /* FbiInit0: unreset gfx, unreset fifo */
- fbiinit0 = FBIINIT0_DEFAULT;
- fbiinit1 = FBIINIT1_DEFAULT;
- fbiinit4 = FBIINIT4_DEFAULT;
- if (vgapass)
- fbiinit0 &= ~EN_VGA_PASSTHROUGH;
- else
- fbiinit0 |= EN_VGA_PASSTHROUGH;
- if (slowpci) {
- fbiinit1 |= SLOW_PCI_WRITES;
- fbiinit4 |= SLOW_PCI_READS;
- } else {
- fbiinit1 &= ~SLOW_PCI_WRITES;
- fbiinit4 &= ~SLOW_PCI_READS;
- }
- sst_write(FBIINIT0, fbiinit0);
- sst_wait_idle();
- sst_write(FBIINIT1, fbiinit1);
- sst_wait_idle();
- sst_write(FBIINIT2, FBIINIT2_DEFAULT);
- sst_wait_idle();
- sst_write(FBIINIT3, FBIINIT3_DEFAULT);
- sst_wait_idle();
- sst_write(FBIINIT4, fbiinit4);
- sst_wait_idle();
- if (IS_VOODOO2(sst_info)) {
- sst_write(FBIINIT6, FBIINIT6_DEFAULT);
- sst_wait_idle();
- }
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_FIFO_WR );
- pci_write_config_dword(sst_dev, PCI_VCLK_ENABLE, 0);
- return 1;
- }
- static void __devexit sst_shutdown(struct sstfb_info *sst_info)
- {
- struct pci_dev * sst_dev = sst_info->dev;
- struct pll_timing gfx_timings;
- int Fout;
- f_dprintk("sst_shutdownn");
- /* reset video, gfx, fifo, disable dram + remap fbiinit2/3 */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_INIT_WR);
- sst_set_bits(FBIINIT1, VIDEO_RESET | EN_BLANKING);
- sst_unset_bits(FBIINIT2, EN_DRAM_REFRESH);
- sst_set_bits(FBIINIT0, FBI_RESET | FIFO_RESET);
- sst_wait_idle();
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR | PCI_REMAP_DAC );
- /*set 20Mhz gfx clock */
- sst_calc_pll(20000, &Fout, &gfx_timings);
- sst_info->dac_sw.set_pll(sst_info, &gfx_timings, GFX_CLOCK);
- /* TODO maybe shutdown the dac, vrefresh and so on... */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
- PCI_EN_INIT_WR);
- sst_unset_bits(FBIINIT0, FBI_RESET | FIFO_RESET | EN_VGA_PASSTHROUGH);
- pci_write_config_dword(sst_dev, PCI_VCLK_DISABLE,0);
- /* maybe keep fbiinit* and PCI_INIT_enable in the fb_info struct at the beginining ? */
- pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, 0);
- }
- /*
- * Interface to the world
- */
- int __init sstfb_setup(char *options)
- {
- char *this_opt;
- f_dprintk("sstfb_setupn");
- if (!options || !*options)
- return 0;
- for(this_opt = strtok(options, ","); this_opt;
- this_opt = strtok(NULL, ",")) { //XXX
- //XXX while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt) continue;
- f_ddprintk("option %sn", this_opt);
- if (!strcmp(this_opt, "inverse")) {
- inverse = 1;
- fb_invert_cmaps();
- }
- else if (!strcmp(this_opt, "vganopass"))
- vgapass = 0;
- else if (!strcmp(this_opt, "vgapass"))
- vgapass = 1;
- else if (!strcmp(this_opt, "clipping"))
- clipping = 1;
- else if (!strcmp(this_opt, "noclipping"))
- clipping = 0;
- else if (!strcmp(this_opt, "fastpci"))
- slowpci = 0;
- else if (!strcmp(this_opt, "slowpci"))
- slowpci = 1;
- else if (!strncmp(this_opt, "mem:",4))
- mem=simple_strtoul (this_opt+4, NULL, 0);
- else if (!strncmp(this_opt, "gfxclk:",7))
- gfxclk=simple_strtoul (this_opt+7, NULL, 0);
- else if (!strncmp(this_opt, "dev:",4))
- dev=simple_strtoul (this_opt+4, NULL, 0);
- else
- mode_option=this_opt;
- }
- return 0;
- }
- int __devinit sstfb_init(void)
- {
- f_dprintk("sstfb_initn");
- dprintk("Compile date: "__DATE__" "__TIME__"n");
- return pci_module_init(&sstfb_driver);
- }
- void __devexit sstfb_exit(void)
- {
- f_dprintk("sstfb_exitn");
- pci_unregister_driver(&sstfb_driver);
- }
- #ifdef MODULE
- module_init(sstfb_init);
- module_exit(sstfb_exit);
- #endif
- static int __devinit sstfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
- {
- struct fb_var_screeninfo var;
- struct sstfb_info * sst_info;
- struct sst_spec * spec;
- int tmp,err;
- f_dprintk("sstfb_proben");
- /* dev > 0 the device is not the one asked for. skip */
- /* dev == 0 this is the device the user asked. init */
- /* dev == -1 we already inited the asked device. skip */
- /* dev < -1 init all devices. including this one. init */
- if ((dev == -1 ) || (dev-- > 0))
- return -1;
- if ((err=pci_enable_device(pdev))) {
- eprintk("cannot enable devicen");
- return err;
- }
- sst_info = (struct sstfb_info*)kmalloc(sizeof(*sst_info), GFP_KERNEL);
- if (!sst_info)
- goto fail_kmalloc;
- pci_set_drvdata(pdev, sst_info);
- sst_info->type = id->driver_data;
- spec = &voodoo_spec[sst_info->type];
- f_ddprintk("found device : %sn", spec->name);
- sst_info->dev = pdev;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &sst_info->revision);
- sst_info->mmio.base = pci_resource_start(pdev,0);
- sst_info->video.base = sst_info->mmio.base+0x400000;
- if (!request_mem_region(sst_info->mmio.base,0x400000,"sstfb MMIO")) {
- eprintk ("cannot reserve mmio memoryn");
- goto fail_mmio_mem;
- }
- if (!request_mem_region(sst_info->video.base,0x400000,"sstfb FB")) {
- eprintk ("cannot reserve fb memoryn");
- goto fail_fb_mem;
- }
- sst_info->mmio.vbase = (u_long) ioremap_nocache(sst_info->mmio.base, 0x400000);
- if (!sst_info->mmio.vbase) {
- eprintk("cannot remap register area %#lxn",
- sst_info->mmio.base);
- goto fail_mmio_remap;
- }
- sst_info->video.vbase = (u_long) ioremap_nocache(sst_info->video.base, 0x400000);
- if (!sst_info->video.vbase) {
- eprintk("cannot remap framebuffer %#lxn",
- sst_info->video.base);
- goto fail_fb_remap;
- }
- if(!sst_init(sst_info)) {
- eprintk("Init failedn");
- goto fail;
- }
- sst_get_memsize(sst_info, &sst_info->video.len);
- strncpy(sst_info->info.modename, spec->name, 16);
- iprintk("%s with %s dacn", sst_info->info.modename, sst_info->dac_sw.name);
- iprintk("framebuffer at %#lx, mapped to %#lx,"
- " size %ldMbn",
- sst_info->video.base, sst_info->video.vbase,
- sst_info->video.len >> 20);
- f_ddprintk("revision: %dn", sst_info->revision);
- f_ddprintk("regbase_virt: %#lxn", sst_info->mmio.vbase);
- f_ddprintk("membase_phys: %#lxn", sst_info->video.base);
- f_ddprintk("fbbase_virt: %#lxn", sst_info->video.vbase);
- sst_info->info.node = -1 ;
- sst_info->info.flags = FBINFO_FLAG_DEFAULT;
- sst_info->info.fbops = &sstfb_ops;
- sst_info->info.disp = &sst_info->disp;
- sst_info->info.changevar = NULL;
- sst_info->info.switch_con = &sstfbcon_switch;
- sst_info->info.updatevar = &sstfbcon_updatevar;
- sst_info->info.blank = &sstfbcon_blank;
- tmp=0;
- var = sstfb_default;
- if ( mode_option &&
- fb_find_mode(&var, &sst_info->info, mode_option,
- NULL, 0, NULL, 16)) {
- if (sstfb_set_var(&var, -1, &sst_info->info)) {
- eprintk("can't set supplied video mode. Using defaultn");
- var = sstfb_default;
- } else {
- /* set the new default */
- sstfb_default = var;
- tmp=1; /* no need to set the mode. */
- }
- }
- if (!tmp && sstfb_set_var(&var, -1, &sst_info->info)) {
- eprintk("can't set default video mode.n");
- goto fail;
- }
- /*clear fb */
- memset_io(sst_info->video.vbase, 0, sst_info->video.len);
- /* print some squares ... */
- sstfb_test16(sst_info); /* FIXME this is only for 16bpp */
- /* register fb */
- if (register_framebuffer(&sst_info->info) < 0) {
- eprintk("can't register framebuffer.n");
- goto fail;
- }
- printk(KERN_INFO "fb%d: %s frame buffer devicen",
- GET_FB_IDX(sst_info->info.node),sst_info->info.modename);
- return 0;
- fail:
- iounmap((void *)sst_info->video.base);
- fail_fb_remap:
- iounmap((void *)sst_info->mmio.base);
- fail_mmio_remap:
- release_mem_region(sst_info->video.base,0x400000);
- fail_fb_mem:
- release_mem_region(sst_info->mmio.base,0x400000);
- fail_mmio_mem:
- kfree(sst_info);
- fail_kmalloc:
- return -ENXIO; /* no voodoo detected */
- }
- static void __devexit sstfb_remove(struct pci_dev *pdev)
- {
- struct sstfb_info * sst_info;
- f_dprintk("sstfb_removen");
- sst_info=pci_get_drvdata(pdev);
- sst_shutdown(sst_info);
- unregister_framebuffer(&sst_info->info);
- iounmap((void*)sst_info->video.vbase);
- iounmap((void*)sst_info->mmio.vbase);
- release_mem_region(sst_info->video.base,0x400000);
- release_mem_region(sst_info->mmio.base,0x400000);
- kfree(sst_info);
- }
- /*
- * console driver
- */
- static int sstfbcon_switch(int con, struct fb_info *info)
- {
- #define sst_info ((struct sstfb_info *) info)
- struct sstfb_par par;
- f_dprintk("sstfbcon_switch(con: %d)n",con);
- f_ddprintk("currcon: %dn", sst_info->currcon);
- v_dprintk("currcon: %dn", sst_info->currcon);
- if (sst_info->currcon >= 0) {
- if (fb_display[sst_info->currcon].cmap.len)
- fb_get_cmap(&fb_display[sst_info->currcon].cmap, 1,
- sstfb_getcolreg, info);
- }
- sst_info->currcon = con;
- fb_display[con].var.activate = FB_ACTIVATE_NOW;
- print_var(&fb_display[con].var, "&fb_display[con: %d].var",con);
- sstfb_decode_var(&fb_display[con].var, &par, sst_info);
- if (memcmp(&par,&(sst_info->current_par),sizeof(par))) {
- sstfb_set_par(&par, sst_info);
- }
- sstfb_install_cmap(con, info);
- return 0;
- #undef sst_info
- }
- static int sstfbcon_updatevar(int con, struct fb_info *info)
- {
- f_dprintk("sstfbcon_updatevarn");
- return -EINVAL;
- }
- static void sstfbcon_blank(int blank, struct fb_info *info)
- {
- f_dprintk("sstfbcon_blank(level %d)n", blank);
- }
- /* print some squares on the fb (presuming 16bpp) */
- static void sstfb_test16(struct sstfb_info *sst_info)
- {
- int i,j;
- u_long p;
- u_long fbbase_virt = sst_info->video.vbase;
- f_dprintk("sstfb_test16n");
- /* rect blanc 20x100+200+0 */
- for (i=0 ; i< 100; i++) {
- p = fbbase_virt + 2048 *i+400;
- for (j=0 ; j < 10 ; j++) {
- writel( 0xffffffff, p);
- p+=4;
- }
- }
- /* rect bleu 180x200+0+0 */
- for (i=0 ; i< 200; i++) {
- p = fbbase_virt + 2048 *i;
- for (j=0 ; j < 90 ; j++) {
- writel(0x001f001f,p);
- p+=4;
- }
- }
- /* carre vert 40x40+100+0 */
- for (i=0 ; i< 40 ; i++) {
- p = fbbase_virt + 2048 *i + 200;
- for (j=0; j <20;j++) {
- writel(0x07e007e0, p);
- p+=4;
- }
- }
- /*carre rouge 40x40+100+40 */
- for (i=0; i<40; i++) {
- p = fbbase_virt + 2048 * (i+40) + 200;
- for (j=0; j <20;j++) {
- writel( 0xf800f800, p);
- p+=4;
- }
- }
- }
- /* print some squares on the fb (24/32bpp) */
- #ifdef EN_24_32_BPP
- static void sstfb_test32(struct sstfb_info *sst_info)
- {
- int i,j;
- u_long p;
- u_long fbbase_virt = sst_info->video.vbase;
- f_dprintk("sstfb_test32n");
- /* rect blanc 20x100+200+0 */
- for (i=0 ; i< 100; i++) {
- p = fbbase_virt + 4096*i + 800;
- for (j=0 ; j < 20 ; j++) {
- writel( 0x00ffffff, p);
- p+=4;
- }
- }
- /* rect bleu 180x200+0+0 */
- for (i=0 ; i< 200; i++) {
- p = fbbase_virt + 4096 * i;
- for (j=0 ; j < 180 ; j++) {
- writel(0x000000ff,p);
- p+=4;
- }
- }
- /* carre vert 40x40+100+0 */
- for (i=0 ; i< 40 ; i++) {
- p = fbbase_virt + 4096 *i + 400;
- for (j=0; j <40;j++) {
- writel(0x0000ff00, p);
- p+=4;
- }
- }
- /*carre rouge 40x40+100+10 */
- for (i=0; i<40; i++) {
- p = fbbase_virt + 4096 * (i+40) + 400;
- for (j=0; j <40;j++) {
- writel( 0x00ff0000, p);
- p+=4;
- }
- }
- }
- #endif /* EN_24_32_BPP */
- MODULE_AUTHOR("(c) 2000,2002 Ghozlane Toumi <gtoumi@laposte.net>");
- MODULE_DESCRIPTION("FBDev driver for 3dfx Voodoo Graphics and Voodoo2 based video boards");
- MODULE_LICENSE("GPL");
- MODULE_PARM(mem, "i");
- MODULE_PARM_DESC(mem, "Size of frame buffer memory in MiB (1, 2, 4 Mb, default=autodetect)");
- MODULE_PARM(vgapass, "i");
- MODULE_PARM_DESC(vgapass, "Enable VGA PassThrough cable (0 or 1) (default=0)");
- MODULE_PARM(inverse, "i");
- MODULE_PARM_DESC(inverse, "Inverse colormap (0 or 1) (default=0)");
- MODULE_PARM(clipping , "i");
- MODULE_PARM_DESC(clipping, "Enable clipping (slower, safer) (0 or 1) (default=1)");
- MODULE_PARM(gfxclk , "i");
- MODULE_PARM_DESC(gfxclk, "Force graphic chip frequency in Mhz. DANGEROUS. (default=auto)");
- MODULE_PARM(slowpci, "i");
- MODULE_PARM_DESC(slowpci, "Uses slow PCI settings (0 or 1) (default=0)");
- MODULE_PARM(dev,"i");
- MODULE_PARM_DESC(dev , "Attach to device ID (0..n) (default=1st device)");
- /*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
- #if 0
- void __Dump_regs (struct sstfb_info * sst_info)
- {
- struct { u32 reg ; char * reg_name;} pci_regs [] = {
- { PCI_INIT_ENABLE, "initenable"},
- { PCI_VCLK_ENABLE, "enable vclk"},
- { PCI_VCLK_DISABLE, "disable vclk"},
- };
- struct { u32 reg ; char * reg_name;} sst_regs [] = {
- {FBIINIT0,"fbiinit0"},
- {FBIINIT1,"fbiinit1"},
- {FBIINIT2,"fbiinit2"},
- {FBIINIT3,"fbiinit3"},
- {FBIINIT4,"fbiinit4"},
- {FBIINIT5,"fbiinit5"},
- {FBIINIT6,"fbiinit6"},
- {FBIINIT7,"fbiinit7"},
- {LFBMODE,"lfbmode"},
- {FBZMODE,"fbzmode"},
- };
- int pci_s = sizeof(pci_regs)/sizeof(*pci_regs);
- int sst_s = sizeof(sst_regs)/sizeof(*sst_regs);
- u32 pci_res[pci_s];
- u32 sst_res[sst_s];
- struct pci_dev * dev = sst_info->dev;
- int i;
- for (i=0; i < pci_s ; i++ ) {
- pci_read_config_dword ( dev, pci_regs[i].reg , &pci_res[i]) ;
- }
- for (i=0; i < sst_s ; i++ ) {
- sst_res[i]=sst_read(sst_regs[i].reg);
- }
- dprintk ("Dump regsn");
- for (i=0; i < pci_s ; i++ ) {
- dprintk("%s = %0#10xn", pci_regs[i].reg_name , pci_res[i]) ;
- }
- for (i=0; i < sst_s ; i++ ) {
- dprintk("%s = %0#10xn", sst_regs[i].reg_name , sst_res[i]) ;
- }
- }
- #endif