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linux/drivers/video/via/viafbdev.c
Florian Tobias Schandinat 521594442c viafb: fix rmmod bug 
This fixes a bug caused by changing pointers (viafb_mode, viafb_mode1)
assigned by module_param.  It reduces driver complexity by not needlessly
changing these vars as they are only read once and removing now
superfluous code.

On unpatched kernels loading viafb with viafb_mode or viafb_mode1 option
used and afterwards unloading it results in:

kernel BUG at mm/slub.c:2926!
invalid opcode: 0000 [#1] PREEMPT
last sysfs file: /sys/devices/virtual/block/loop0/removable
Modules linked in: snd_hda_codec_realtek snd_hda_intel snd_hda_codec
snd_hwdep snd_pcm rtl8187 snd_timer eeprom_93cx6 mmc_block snd soundcore
via_sdmmc fb snd_page_alloc i2c_algo_bit i2c_viapro ehci_hcd uhci_hcd
cfbcopyarea mmc_core cfbimgblt cfbfillrect video output [last unloaded:
viafb]

  Pid: 3355, comm: rmmod Not tainted (2.6.31-rc1 #0)
  EIP: 0060:[<c106a759>] EFLAGS: 00010246 CPU: 0
  EIP is at kfree+0x80/0xda
  EAX: c17c2da0 EBX: dc7edbdc ECX: 0000010f EDX: 00000000
  ESI: c102c700 EDI: dc7ed8fa EBP: d703ff2c ESP: d703ff20
   DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
  Process rmmod (pid: 3355, ti=d703e000 task=db1412c0 task.ti=d703e000)
  Stack:
   dc7edbdc 00000014 00000016 d703ff40 c102c700 dc7f45d4 dc7f45d4 00000880
   d703ff4c c103e571 00000000 d703ffac c103e751 66616976 da140062 db89ba80
   00000328 d702edf8 db89ba80 d703ff9c c105d0f0 00000200 da14f898 00000014
  Call Trace:
   [<c102c700>] ? destroy_params+0x1e/0x2b
   [<c103e571>] ? free_module+0xa2/0xd7
   [<c103e751>] ? sys_delete_module+0x1ab/0x1da
   [<c105d0f0>] ? do_munmap+0x20a/0x225
   [<c10029b4>] ? sysenter_do_call+0x12/0x26
  Code: 10 76 7a 8d 87 00 00 00 40 c1 e8 0c c1 e0 05 03 05 1c 87 41 c1 66 83 38 00 79 03 8b 40 0c 8b 10 84 d2 78 12 66 f7 c2 00 c0 75 04 <0f> 0b eb fe e8 6f 5a fe ff eb 47 8b 55 04 8b 58 0c 9c 5e fa 3b
  EIP: [<c106a759>] kfree+0x80/0xda SS:ESP 0068:d703ff20

This is caused by the current code changing the pointers assigned by
module_param.  During unload it tries to free the memory the pointers
point at which is now part of an internal structure.

The patch simply avoids changing the pointers.  This is okay as they are
read only once during the initialization process.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-07 10:39:56 -07:00

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/*
* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation;
* either version 2, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE.See the GNU General Public License
* for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/module.h>
#define _MASTER_FILE
#include "global.h"
static int MAX_CURS = 32;
static struct fb_var_screeninfo default_var;
static char *viafb_name = "Via";
static u32 pseudo_pal[17];
/* video mode */
static char *viafb_mode = "640x480";
static char *viafb_mode1 = "640x480";
/* Added for specifying active devices.*/
char *viafb_active_dev = "";
/* Added for specifying video on devices.*/
char *viafb_video_dev = "";
/*Added for specify lcd output port*/
char *viafb_lcd_port = "";
char *viafb_dvi_port = "";
static void viafb_set_device(struct device_t active_dev);
static int apply_device_setting(struct viafb_ioctl_setting setting_info,
struct fb_info *info);
static void apply_second_mode_setting(struct fb_var_screeninfo
*sec_var);
static void retrieve_device_setting(struct viafb_ioctl_setting
*setting_info);
static void viafb_set_video_device(u32 video_dev_info);
static void viafb_get_video_device(u32 *video_dev_info);
/* Mode information */
static const struct viafb_modeinfo viafb_modentry[] = {
{480, 640, VIA_RES_480X640},
{640, 480, VIA_RES_640X480},
{800, 480, VIA_RES_800X480},
{800, 600, VIA_RES_800X600},
{1024, 768, VIA_RES_1024X768},
{1152, 864, VIA_RES_1152X864},
{1280, 1024, VIA_RES_1280X1024},
{1600, 1200, VIA_RES_1600X1200},
{1440, 1050, VIA_RES_1440X1050},
{1280, 768, VIA_RES_1280X768,},
{1280, 800, VIA_RES_1280X800},
{1280, 960, VIA_RES_1280X960},
{1920, 1440, VIA_RES_1920X1440},
{848, 480, VIA_RES_848X480},
{1400, 1050, VIA_RES_1400X1050},
{720, 480, VIA_RES_720X480},
{720, 576, VIA_RES_720X576},
{1024, 512, VIA_RES_1024X512},
{1024, 576, VIA_RES_1024X576},
{1024, 600, VIA_RES_1024X600},
{1280, 720, VIA_RES_1280X720},
{1920, 1080, VIA_RES_1920X1080},
{1366, 768, VIA_RES_1368X768},
{1680, 1050, VIA_RES_1680X1050},
{960, 600, VIA_RES_960X600},
{1000, 600, VIA_RES_1000X600},
{1024, 576, VIA_RES_1024X576},
{1024, 600, VIA_RES_1024X600},
{1088, 612, VIA_RES_1088X612},
{1152, 720, VIA_RES_1152X720},
{1200, 720, VIA_RES_1200X720},
{1280, 600, VIA_RES_1280X600},
{1360, 768, VIA_RES_1360X768},
{1440, 900, VIA_RES_1440X900},
{1600, 900, VIA_RES_1600X900},
{1600, 1024, VIA_RES_1600X1024},
{1792, 1344, VIA_RES_1792X1344},
{1856, 1392, VIA_RES_1856X1392},
{1920, 1200, VIA_RES_1920X1200},
{2048, 1536, VIA_RES_2048X1536},
{0, 0, VIA_RES_INVALID}
};
static struct fb_ops viafb_ops;
static int viafb_update_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
{
struct viafb_par *ppar;
ppar = info->par;
DEBUG_MSG(KERN_INFO "viafb_update_fix!\n");
fix->visual =
ppar->bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
fix->line_length = ppar->linelength;
return 0;
}
static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
struct viafb_par *viaparinfo)
{
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
strcpy(fix->id, viafb_name);
fix->smem_start = viaparinfo->fbmem;
fix->smem_len = viaparinfo->fbmem_free;
fix->mmio_start = viaparinfo->mmio_base;
fix->mmio_len = viaparinfo->mmio_len;
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
fix->xpanstep = fix->ywrapstep = 0;
fix->ypanstep = 1;
/* Just tell the accel name */
viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
}
static int viafb_open(struct fb_info *info, int user)
{
DEBUG_MSG(KERN_INFO "viafb_open!\n");
return 0;
}
static int viafb_release(struct fb_info *info, int user)
{
DEBUG_MSG(KERN_INFO "viafb_release!\n");
return 0;
}
static void viafb_update_viafb_par(struct fb_info *info)
{
struct viafb_par *ppar;
ppar = info->par;
ppar->bpp = info->var.bits_per_pixel;
ppar->linelength = ((info->var.xres_virtual + 7) & ~7) * ppar->bpp / 8;
ppar->hres = info->var.xres;
ppar->vres = info->var.yres;
ppar->xoffset = info->var.xoffset;
ppar->yoffset = info->var.yoffset;
}
static int viafb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
int vmode_index, htotal, vtotal;
struct viafb_par *ppar;
u32 long_refresh;
struct viafb_par *p_viafb_par;
ppar = info->par;
DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
/* Sanity check */
/* HW neither support interlacte nor double-scaned mode */
if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
return -EINVAL;
vmode_index = viafb_get_mode_index(var->xres, var->yres);
if (vmode_index == VIA_RES_INVALID) {
DEBUG_MSG(KERN_INFO
"viafb: Mode %dx%dx%d not supported!!\n",
var->xres, var->yres, var->bits_per_pixel);
return -EINVAL;
}
if (24 == var->bits_per_pixel)
var->bits_per_pixel = 32;
if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
var->bits_per_pixel != 32)
return -EINVAL;
if ((var->xres_virtual * (var->bits_per_pixel >> 3)) & 0x1F)
/*32 pixel alignment */
var->xres_virtual = (var->xres_virtual + 31) & ~31;
if (var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8 >
ppar->memsize)
return -EINVAL;
/* Based on var passed in to calculate the refresh,
* because our driver use some modes special.
*/
htotal = var->xres + var->left_margin +
var->right_margin + var->hsync_len;
vtotal = var->yres + var->upper_margin +
var->lower_margin + var->vsync_len;
long_refresh = 1000000000UL / var->pixclock * 1000;
long_refresh /= (htotal * vtotal);
viafb_refresh = viafb_get_refresh(var->xres, var->yres, long_refresh);
/* Adjust var according to our driver's own table */
viafb_fill_var_timing_info(var, viafb_refresh, vmode_index);
/* This is indeed a patch for VT3353 */
if (!info->par)
return -1;
p_viafb_par = (struct viafb_par *)info->par;
if (p_viafb_par->chip_info->gfx_chip_name == UNICHROME_VX800)
var->accel_flags = 0;
return 0;
}
static int viafb_set_par(struct fb_info *info)
{
int vmode_index;
int vmode_index1 = 0;
DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
viafb_update_device_setting(info->var.xres, info->var.yres,
info->var.bits_per_pixel, viafb_refresh, 0);
vmode_index = viafb_get_mode_index(info->var.xres, info->var.yres);
if (viafb_SAMM_ON == 1) {
DEBUG_MSG(KERN_INFO
"viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
viafb_second_xres, viafb_second_yres, viafb_bpp1);
vmode_index1 = viafb_get_mode_index(viafb_second_xres,
viafb_second_yres);
DEBUG_MSG(KERN_INFO "->viafb_SAMM_ON: index=%d\n",
vmode_index1);
viafb_update_device_setting(viafb_second_xres,
viafb_second_yres, viafb_bpp1, viafb_refresh1, 1);
}
if (vmode_index != VIA_RES_INVALID) {
viafb_setmode(vmode_index, info->var.xres, info->var.yres,
info->var.bits_per_pixel, vmode_index1,
viafb_second_xres, viafb_second_yres, viafb_bpp1);
/*We should set memory offset according virtual_x */
/*Fix me:put this function into viafb_setmode */
viafb_memory_pitch_patch(info);
/* Update ***fb_par information */
viafb_update_viafb_par(info);
/* Update other fixed information */
viafb_update_fix(&info->fix, info);
viafb_bpp = info->var.bits_per_pixel;
/* Update viafb_accel, it is necessary to our 2D accelerate */
viafb_accel = info->var.accel_flags;
if (viafb_accel)
viafb_set_2d_color_depth(info->var.bits_per_pixel);
}
return 0;
}
/* Set one color register */
static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp, struct fb_info *info)
{
u8 sr1a, sr1b, cr67, cr6a, rev = 0, shift = 10;
unsigned cmap_entries = (info->var.bits_per_pixel == 8) ? 256 : 16;
DEBUG_MSG(KERN_INFO "viafb_setcolreg!\n");
if (regno >= cmap_entries)
return 1;
if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name) {
/*
* Read PCI bus 0,dev 0,function 0,index 0xF6 to get chip rev.
*/
outl(0x80000000 | (0xf6 & ~3), (unsigned long)0xCF8);
rev = (inl((unsigned long)0xCFC) >> ((0xf6 & 3) * 8)) & 0xff;
}
switch (info->var.bits_per_pixel) {
case 8:
outb(0x1A, 0x3C4);
sr1a = inb(0x3C5);
outb(0x1B, 0x3C4);
sr1b = inb(0x3C5);
outb(0x67, 0x3D4);
cr67 = inb(0x3D5);
outb(0x6A, 0x3D4);
cr6a = inb(0x3D5);
/* Map the 3C6/7/8/9 to the IGA2 */
outb(0x1A, 0x3C4);
outb(sr1a | 0x01, 0x3C5);
/* Second Display Engine colck always on */
outb(0x1B, 0x3C4);
outb(sr1b | 0x80, 0x3C5);
/* Second Display Color Depth 8 */
outb(0x67, 0x3D4);
outb(cr67 & 0x3F, 0x3D5);
outb(0x6A, 0x3D4);
/* Second Display Channel Reset CR6A[6]) */
outb(cr6a & 0xBF, 0x3D5);
/* Second Display Channel Enable CR6A[7] */
outb(cr6a | 0x80, 0x3D5);
/* Second Display Channel stop reset) */
outb(cr6a | 0x40, 0x3D5);
/* Bit mask of palette */
outb(0xFF, 0x3c6);
/* Write one register of IGA2 */
outb(regno, 0x3C8);
if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name &&
rev >= 15) {
shift = 8;
viafb_write_reg_mask(CR6A, VIACR, BIT5, BIT5);
viafb_write_reg_mask(SR15, VIASR, BIT7, BIT7);
} else {
shift = 10;
viafb_write_reg_mask(CR6A, VIACR, 0, BIT5);
viafb_write_reg_mask(SR15, VIASR, 0, BIT7);
}
outb(red >> shift, 0x3C9);
outb(green >> shift, 0x3C9);
outb(blue >> shift, 0x3C9);
/* Map the 3C6/7/8/9 to the IGA1 */
outb(0x1A, 0x3C4);
outb(sr1a & 0xFE, 0x3C5);
/* Bit mask of palette */
outb(0xFF, 0x3c6);
/* Write one register of IGA1 */
outb(regno, 0x3C8);
outb(red >> shift, 0x3C9);
outb(green >> shift, 0x3C9);
outb(blue >> shift, 0x3C9);
outb(0x1A, 0x3C4);
outb(sr1a, 0x3C5);
outb(0x1B, 0x3C4);
outb(sr1b, 0x3C5);
outb(0x67, 0x3D4);
outb(cr67, 0x3D5);
outb(0x6A, 0x3D4);
outb(cr6a, 0x3D5);
break;
case 16:
((u32 *) info->pseudo_palette)[regno] = (red & 0xF800) |
((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
break;
case 32:
((u32 *) info->pseudo_palette)[regno] =
((transp & 0xFF00) << 16) |
((red & 0xFF00) << 8) |
((green & 0xFF00)) | ((blue & 0xFF00) >> 8);
break;
}
return 0;
}
/*CALLED BY: fb_set_cmap */
/* fb_set_var, pass 256 colors */
/*CALLED BY: fb_set_cmap */
/* fbcon_set_palette, pass 16 colors */
static int viafb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
{
u32 len = cmap->len;
u32 i;
u16 *pred = cmap->red;
u16 *pgreen = cmap->green;
u16 *pblue = cmap->blue;
u16 *ptransp = cmap->transp;
u8 sr1a, sr1b, cr67, cr6a, rev = 0, shift = 10;
if (len > 256)
return 1;
if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name) {
/*
* Read PCI bus 0, dev 0, function 0, index 0xF6 to get chip
* rev.
*/
outl(0x80000000 | (0xf6 & ~3), (unsigned long)0xCF8);
rev = (inl((unsigned long)0xCFC) >> ((0xf6 & 3) * 8)) & 0xff;
}
switch (info->var.bits_per_pixel) {
case 8:
outb(0x1A, 0x3C4);
sr1a = inb(0x3C5);
outb(0x1B, 0x3C4);
sr1b = inb(0x3C5);
outb(0x67, 0x3D4);
cr67 = inb(0x3D5);
outb(0x6A, 0x3D4);
cr6a = inb(0x3D5);
/* Map the 3C6/7/8/9 to the IGA2 */
outb(0x1A, 0x3C4);
outb(sr1a | 0x01, 0x3C5);
outb(0x1B, 0x3C4);
/* Second Display Engine colck always on */
outb(sr1b | 0x80, 0x3C5);
outb(0x67, 0x3D4);
/* Second Display Color Depth 8 */
outb(cr67 & 0x3F, 0x3D5);
outb(0x6A, 0x3D4);
/* Second Display Channel Reset CR6A[6]) */
outb(cr6a & 0xBF, 0x3D5);
/* Second Display Channel Enable CR6A[7] */
outb(cr6a | 0x80, 0x3D5);
/* Second Display Channel stop reset) */
outb(cr6a | 0xC0, 0x3D5);
/* Bit mask of palette */
outb(0xFF, 0x3c6);
outb(0x00, 0x3C8);
if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name &&
rev >= 15) {
shift = 8;
viafb_write_reg_mask(CR6A, VIACR, BIT5, BIT5);
viafb_write_reg_mask(SR15, VIASR, BIT7, BIT7);
} else {
shift = 10;
viafb_write_reg_mask(CR6A, VIACR, 0, BIT5);
viafb_write_reg_mask(SR15, VIASR, 0, BIT7);
}
for (i = 0; i < len; i++) {
outb((*(pred + i)) >> shift, 0x3C9);
outb((*(pgreen + i)) >> shift, 0x3C9);
outb((*(pblue + i)) >> shift, 0x3C9);
}
outb(0x1A, 0x3C4);
/* Map the 3C6/7/8/9 to the IGA1 */
outb(sr1a & 0xFE, 0x3C5);
/* Bit mask of palette */
outb(0xFF, 0x3c6);
outb(0x00, 0x3C8);
for (i = 0; i < len; i++) {
outb((*(pred + i)) >> shift, 0x3C9);
outb((*(pgreen + i)) >> shift, 0x3C9);
outb((*(pblue + i)) >> shift, 0x3C9);
}
outb(0x1A, 0x3C4);
outb(sr1a, 0x3C5);
outb(0x1B, 0x3C4);
outb(sr1b, 0x3C5);
outb(0x67, 0x3D4);
outb(cr67, 0x3D5);
outb(0x6A, 0x3D4);
outb(cr6a, 0x3D5);
break;
case 16:
if (len > 17)
return 0; /* Because static u32 pseudo_pal[17]; */
for (i = 0; i < len; i++)
((u32 *) info->pseudo_palette)[i] =
(*(pred + i) & 0xF800) |
((*(pgreen + i) & 0xFC00) >> 5) |
((*(pblue + i) & 0xF800) >> 11);
break;
case 32:
if (len > 17)
return 0;
if (ptransp) {
for (i = 0; i < len; i++)
((u32 *) info->pseudo_palette)[i] =
((*(ptransp + i) & 0xFF00) << 16) |
((*(pred + i) & 0xFF00) << 8) |
((*(pgreen + i) & 0xFF00)) |
((*(pblue + i) & 0xFF00) >> 8);
} else {
for (i = 0; i < len; i++)
((u32 *) info->pseudo_palette)[i] =
0x00000000 |
((*(pred + i) & 0xFF00) << 8) |
((*(pgreen + i) & 0xFF00)) |
((*(pblue + i) & 0xFF00) >> 8);
}
break;
}
return 0;
}
static int viafb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
unsigned int offset;
DEBUG_MSG(KERN_INFO "viafb_pan_display!\n");
offset = (var->xoffset + (var->yoffset * var->xres_virtual)) *
var->bits_per_pixel / 16;
DEBUG_MSG(KERN_INFO "\nviafb_pan_display,offset =%d ", offset);
viafb_write_reg_mask(0x48, 0x3d4, ((offset >> 24) & 0x3), 0x3);
viafb_write_reg_mask(0x34, 0x3d4, ((offset >> 16) & 0xff), 0xff);
viafb_write_reg_mask(0x0c, 0x3d4, ((offset >> 8) & 0xff), 0xff);
viafb_write_reg_mask(0x0d, 0x3d4, (offset & 0xff), 0xff);
return 0;
}
static int viafb_blank(int blank_mode, struct fb_info *info)
{
DEBUG_MSG(KERN_INFO "viafb_blank!\n");
/* clear DPMS setting */
switch (blank_mode) {
case FB_BLANK_UNBLANK:
/* Screen: On, HSync: On, VSync: On */
/* control CRT monitor power management */
viafb_write_reg_mask(CR36, VIACR, 0x00, BIT4 + BIT5);
break;
case FB_BLANK_HSYNC_SUSPEND:
/* Screen: Off, HSync: Off, VSync: On */
/* control CRT monitor power management */
viafb_write_reg_mask(CR36, VIACR, 0x10, BIT4 + BIT5);
break;
case FB_BLANK_VSYNC_SUSPEND:
/* Screen: Off, HSync: On, VSync: Off */
/* control CRT monitor power management */
viafb_write_reg_mask(CR36, VIACR, 0x20, BIT4 + BIT5);
break;
case FB_BLANK_POWERDOWN:
/* Screen: Off, HSync: Off, VSync: Off */
/* control CRT monitor power management */
viafb_write_reg_mask(CR36, VIACR, 0x30, BIT4 + BIT5);
break;
}
return 0;
}
static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
{
union {
struct viafb_ioctl_mode viamode;
struct viafb_ioctl_samm viasamm;
struct viafb_driver_version driver_version;
struct fb_var_screeninfo sec_var;
struct _panel_size_pos_info panel_pos_size_para;
struct viafb_ioctl_setting viafb_setting;
struct device_t active_dev;
} u;
u32 state_info = 0;
u32 *viafb_gamma_table;
char driver_name[] = "viafb";
u32 __user *argp = (u32 __user *) arg;
u32 gpu32;
u32 video_dev_info = 0;
DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
memset(&u, 0, sizeof(u));
switch (cmd) {
case VIAFB_GET_CHIP_INFO:
if (copy_to_user(argp, viaparinfo->chip_info,
sizeof(struct chip_information)))
return -EFAULT;
break;
case VIAFB_GET_INFO_SIZE:
return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
case VIAFB_GET_INFO:
return viafb_ioctl_get_viafb_info(arg);
case VIAFB_HOTPLUG:
return put_user(viafb_ioctl_hotplug(info->var.xres,
info->var.yres,
info->var.bits_per_pixel), argp);
case VIAFB_SET_HOTPLUG_FLAG:
if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
return -EFAULT;
viafb_hotplug = (gpu32) ? 1 : 0;
break;
case VIAFB_GET_RESOLUTION:
u.viamode.xres = (u32) viafb_hotplug_Xres;
u.viamode.yres = (u32) viafb_hotplug_Yres;
u.viamode.refresh = (u32) viafb_hotplug_refresh;
u.viamode.bpp = (u32) viafb_hotplug_bpp;
if (viafb_SAMM_ON == 1) {
u.viamode.xres_sec = viafb_second_xres;
u.viamode.yres_sec = viafb_second_yres;
u.viamode.virtual_xres_sec = viafb_second_virtual_xres;
u.viamode.virtual_yres_sec = viafb_second_virtual_yres;
u.viamode.refresh_sec = viafb_refresh1;
u.viamode.bpp_sec = viafb_bpp1;
} else {
u.viamode.xres_sec = 0;
u.viamode.yres_sec = 0;
u.viamode.virtual_xres_sec = 0;
u.viamode.virtual_yres_sec = 0;
u.viamode.refresh_sec = 0;
u.viamode.bpp_sec = 0;
}
if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
return -EFAULT;
break;
case VIAFB_GET_SAMM_INFO:
u.viasamm.samm_status = viafb_SAMM_ON;
if (viafb_SAMM_ON == 1) {
if (viafb_dual_fb) {
u.viasamm.size_prim = viaparinfo->fbmem_free;
u.viasamm.size_sec = viaparinfo1->fbmem_free;
} else {
if (viafb_second_size) {
u.viasamm.size_prim =
viaparinfo->fbmem_free -
viafb_second_size * 1024 * 1024;
u.viasamm.size_sec =
viafb_second_size * 1024 * 1024;
} else {
u.viasamm.size_prim =
viaparinfo->fbmem_free >> 1;
u.viasamm.size_sec =
(viaparinfo->fbmem_free >> 1);
}
}
u.viasamm.mem_base = viaparinfo->fbmem;
u.viasamm.offset_sec = viafb_second_offset;
} else {
u.viasamm.size_prim =
viaparinfo->memsize - viaparinfo->fbmem_used;
u.viasamm.size_sec = 0;
u.viasamm.mem_base = viaparinfo->fbmem;
u.viasamm.offset_sec = 0;
}
if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
return -EFAULT;
break;
case VIAFB_TURN_ON_OUTPUT_DEVICE:
if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
return -EFAULT;
if (gpu32 & CRT_Device)
viafb_crt_enable();
if (gpu32 & DVI_Device)
viafb_dvi_enable();
if (gpu32 & LCD_Device)
viafb_lcd_enable();
break;
case VIAFB_TURN_OFF_OUTPUT_DEVICE:
if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
return -EFAULT;
if (gpu32 & CRT_Device)
viafb_crt_disable();
if (gpu32 & DVI_Device)
viafb_dvi_disable();
if (gpu32 & LCD_Device)
viafb_lcd_disable();
break;
case VIAFB_SET_DEVICE:
if (copy_from_user(&u.active_dev, (void *)argp,
sizeof(u.active_dev)))
return -EFAULT;
viafb_set_device(u.active_dev);
viafb_set_par(info);
break;
case VIAFB_GET_DEVICE:
u.active_dev.crt = viafb_CRT_ON;
u.active_dev.dvi = viafb_DVI_ON;
u.active_dev.lcd = viafb_LCD_ON;
u.active_dev.samm = viafb_SAMM_ON;
u.active_dev.primary_dev = viafb_primary_dev;
u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
u.active_dev.lcd_mode = viafb_lcd_mode;
u.active_dev.xres = viafb_hotplug_Xres;
u.active_dev.yres = viafb_hotplug_Yres;
u.active_dev.xres1 = viafb_second_xres;
u.active_dev.yres1 = viafb_second_yres;
u.active_dev.bpp = viafb_bpp;
u.active_dev.bpp1 = viafb_bpp1;
u.active_dev.refresh = viafb_refresh;
u.active_dev.refresh1 = viafb_refresh1;
u.active_dev.epia_dvi = viafb_platform_epia_dvi;
u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
u.active_dev.bus_width = viafb_bus_width;
if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
return -EFAULT;
break;
case VIAFB_GET_DRIVER_VERSION:
u.driver_version.iMajorNum = VERSION_MAJOR;
u.driver_version.iKernelNum = VERSION_KERNEL;
u.driver_version.iOSNum = VERSION_OS;
u.driver_version.iMinorNum = VERSION_MINOR;
if (copy_to_user(argp, &u.driver_version,
sizeof(u.driver_version)))
return -EFAULT;
break;
case VIAFB_SET_DEVICE_INFO:
if (copy_from_user(&u.viafb_setting,
argp, sizeof(u.viafb_setting)))
return -EFAULT;
if (apply_device_setting(u.viafb_setting, info) < 0)
return -EINVAL;
break;
case VIAFB_SET_SECOND_MODE:
if (copy_from_user(&u.sec_var, argp, sizeof(u.sec_var)))
return -EFAULT;
apply_second_mode_setting(&u.sec_var);
break;
case VIAFB_GET_DEVICE_INFO:
retrieve_device_setting(&u.viafb_setting);
if (copy_to_user(argp, &u.viafb_setting,
sizeof(u.viafb_setting)))
return -EFAULT;
break;
case VIAFB_GET_DEVICE_SUPPORT:
viafb_get_device_support_state(&state_info);
if (put_user(state_info, argp))
return -EFAULT;
break;
case VIAFB_GET_DEVICE_CONNECT:
viafb_get_device_connect_state(&state_info);
if (put_user(state_info, argp))
return -EFAULT;
break;
case VIAFB_GET_PANEL_SUPPORT_EXPAND:
state_info =
viafb_lcd_get_support_expand_state(info->var.xres,
info->var.yres);
if (put_user(state_info, argp))
return -EFAULT;
break;
case VIAFB_GET_DRIVER_NAME:
if (copy_to_user(argp, driver_name, sizeof(driver_name)))
return -EFAULT;
break;
case VIAFB_SET_GAMMA_LUT:
viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
if (!viafb_gamma_table)
return -ENOMEM;
if (copy_from_user(viafb_gamma_table, argp,
sizeof(viafb_gamma_table))) {
kfree(viafb_gamma_table);
return -EFAULT;
}
viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
kfree(viafb_gamma_table);
break;
case VIAFB_GET_GAMMA_LUT:
viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
if (!viafb_gamma_table)
return -ENOMEM;
viafb_get_gamma_table(viafb_gamma_table);
if (copy_to_user(argp, viafb_gamma_table,
sizeof(viafb_gamma_table))) {
kfree(viafb_gamma_table);
return -EFAULT;
}
kfree(viafb_gamma_table);
break;
case VIAFB_GET_GAMMA_SUPPORT_STATE:
viafb_get_gamma_support_state(viafb_bpp, &state_info);
if (put_user(state_info, argp))
return -EFAULT;
break;
case VIAFB_SET_VIDEO_DEVICE:
get_user(video_dev_info, argp);
viafb_set_video_device(video_dev_info);
break;
case VIAFB_GET_VIDEO_DEVICE:
viafb_get_video_device(&video_dev_info);
if (put_user(video_dev_info, argp))
return -EFAULT;
break;
case VIAFB_SYNC_SURFACE:
DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
break;
case VIAFB_GET_DRIVER_CAPS:
break;
case VIAFB_GET_PANEL_MAX_SIZE:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
if (copy_to_user(argp, &u.panel_pos_size_para,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
case VIAFB_GET_PANEL_MAX_POSITION:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
if (copy_to_user(argp, &u.panel_pos_size_para,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
case VIAFB_GET_PANEL_POSITION:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
if (copy_to_user(argp, &u.panel_pos_size_para,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
case VIAFB_GET_PANEL_SIZE:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
if (copy_to_user(argp, &u.panel_pos_size_para,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
case VIAFB_SET_PANEL_POSITION:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
case VIAFB_SET_PANEL_SIZE:
if (copy_from_user(&u.panel_pos_size_para, argp,
sizeof(u.panel_pos_size_para)))
return -EFAULT;
break;
default:
return -EINVAL;
}
return 0;
}
static void viafb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
u32 col = 0, rop = 0;
int pitch;
if (!viafb_accel) {
cfb_fillrect(info, rect);
return;
}
if (!rect->width || !rect->height)
return;
switch (rect->rop) {
case ROP_XOR:
rop = 0x5A;
break;
case ROP_COPY:
default:
rop = 0xF0;
break;
}
switch (info->var.bits_per_pixel) {
case 8:
col = rect->color;
break;
case 16:
col = ((u32 *) (info->pseudo_palette))[rect->color];
break;
case 32:
col = ((u32 *) (info->pseudo_palette))[rect->color];
break;
}
/* BitBlt Source Address */
writel(0x0, viaparinfo->io_virt + VIA_REG_SRCPOS);
/* Source Base Address */
writel(0x0, viaparinfo->io_virt + VIA_REG_SRCBASE);
/* Destination Base Address */
writel(((unsigned long) (info->screen_base) -
(unsigned long) viafb_FB_MM) >> 3,
viaparinfo->io_virt + VIA_REG_DSTBASE);
/* Pitch */
pitch = (info->var.xres_virtual + 7) & ~7;
writel(VIA_PITCH_ENABLE |
(((pitch *
info->var.bits_per_pixel >> 3) >> 3) |
(((pitch * info->
var.bits_per_pixel >> 3) >> 3) << 16)),
viaparinfo->io_virt + VIA_REG_PITCH);
/* BitBlt Destination Address */
writel(((rect->dy << 16) | rect->dx),
viaparinfo->io_virt + VIA_REG_DSTPOS);
/* Dimension: width & height */
writel((((rect->height - 1) << 16) | (rect->width - 1)),
viaparinfo->io_virt + VIA_REG_DIMENSION);
/* Forground color or Destination color */
writel(col, viaparinfo->io_virt + VIA_REG_FGCOLOR);
/* GE Command */
writel((0x01 | 0x2000 | (rop << 24)),
viaparinfo->io_virt + VIA_REG_GECMD);
}
static void viafb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
u32 dy = area->dy, sy = area->sy, direction = 0x0;
u32 sx = area->sx, dx = area->dx, width = area->width;
int pitch;
DEBUG_MSG(KERN_INFO "viafb_copyarea!!\n");
if (!viafb_accel) {
cfb_copyarea(info, area);
return;
}
if (!area->width || !area->height)
return;
if (sy < dy) {
dy += area->height - 1;
sy += area->height - 1;
direction |= 0x4000;
}
if (sx < dx) {
dx += width - 1;
sx += width - 1;
direction |= 0x8000;
}
/* Source Base Address */
writel(((unsigned long) (info->screen_base) -
(unsigned long) viafb_FB_MM) >> 3,
viaparinfo->io_virt + VIA_REG_SRCBASE);
/* Destination Base Address */
writel(((unsigned long) (info->screen_base) -
(unsigned long) viafb_FB_MM) >> 3,
viaparinfo->io_virt + VIA_REG_DSTBASE);
/* Pitch */
pitch = (info->var.xres_virtual + 7) & ~7;
/* VIA_PITCH_ENABLE can be omitted now. */
writel(VIA_PITCH_ENABLE |
(((pitch *
info->var.bits_per_pixel >> 3) >> 3) | (((pitch *
info->var.
bits_per_pixel
>> 3) >> 3)
<< 16)),
viaparinfo->io_virt + VIA_REG_PITCH);
/* BitBlt Source Address */
writel(((sy << 16) | sx), viaparinfo->io_virt + VIA_REG_SRCPOS);
/* BitBlt Destination Address */
writel(((dy << 16) | dx), viaparinfo->io_virt + VIA_REG_DSTPOS);
/* Dimension: width & height */
writel((((area->height - 1) << 16) | (area->width - 1)),
viaparinfo->io_virt + VIA_REG_DIMENSION);
/* GE Command */
writel((0x01 | direction | (0xCC << 24)),
viaparinfo->io_virt + VIA_REG_GECMD);
}
static void viafb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
u32 size, bg_col = 0, fg_col = 0, *udata;
int i;
int pitch;
if (!viafb_accel) {
cfb_imageblit(info, image);
return;
}
udata = (u32 *) image->data;
switch (info->var.bits_per_pixel) {
case 8:
bg_col = image->bg_color;
fg_col = image->fg_color;
break;
case 16:
bg_col = ((u32 *) (info->pseudo_palette))[image->bg_color];
fg_col = ((u32 *) (info->pseudo_palette))[image->fg_color];
break;
case 32:
bg_col = ((u32 *) (info->pseudo_palette))[image->bg_color];
fg_col = ((u32 *) (info->pseudo_palette))[image->fg_color];
break;
}
size = image->width * image->height;
/* Source Base Address */
writel(0x0, viaparinfo->io_virt + VIA_REG_SRCBASE);
/* Destination Base Address */
writel(((unsigned long) (info->screen_base) -
(unsigned long) viafb_FB_MM) >> 3,
viaparinfo->io_virt + VIA_REG_DSTBASE);
/* Pitch */
pitch = (info->var.xres_virtual + 7) & ~7;
writel(VIA_PITCH_ENABLE |
(((pitch *
info->var.bits_per_pixel >> 3) >> 3) | (((pitch *
info->var.
bits_per_pixel
>> 3) >> 3)
<< 16)),
viaparinfo->io_virt + VIA_REG_PITCH);
/* BitBlt Source Address */
writel(0x0, viaparinfo->io_virt + VIA_REG_SRCPOS);
/* BitBlt Destination Address */
writel(((image->dy << 16) | image->dx),
viaparinfo->io_virt + VIA_REG_DSTPOS);
/* Dimension: width & height */
writel((((image->height - 1) << 16) | (image->width - 1)),
viaparinfo->io_virt + VIA_REG_DIMENSION);
/* fb color */
writel(fg_col, viaparinfo->io_virt + VIA_REG_FGCOLOR);
/* bg color */
writel(bg_col, viaparinfo->io_virt + VIA_REG_BGCOLOR);
/* GE Command */
writel(0xCC020142, viaparinfo->io_virt + VIA_REG_GECMD);
for (i = 0; i < size / 4; i++) {
writel(*udata, viaparinfo->io_virt + VIA_MMIO_BLTBASE);
udata++;
}
}
static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
u32 temp, xx, yy, bg_col = 0, fg_col = 0;
int i, j = 0;
static int hw_cursor;
struct viafb_par *p_viafb_par;
if (viafb_accel)
hw_cursor = 1;
if (!viafb_accel) {
if (hw_cursor) {
viafb_show_hw_cursor(info, HW_Cursor_OFF);
hw_cursor = 0;
}
return -ENODEV;
}
if ((((struct viafb_par *)(info->par))->iga_path == IGA2)
&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
return -ENODEV;
/* When duoview and using lcd , use soft cursor */
if (viafb_LCD_ON || ((struct viafb_par *)(info->par))->duoview)
return -ENODEV;
viafb_show_hw_cursor(info, HW_Cursor_OFF);
viacursor = *cursor;
if (cursor->set & FB_CUR_SETHOT) {
viacursor.hot = cursor->hot;
temp = ((viacursor.hot.x) << 16) + viacursor.hot.y;
writel(temp, viaparinfo->io_virt + VIA_REG_CURSOR_ORG);
}
if (cursor->set & FB_CUR_SETPOS) {
viacursor.image.dx = cursor->image.dx;
viacursor.image.dy = cursor->image.dy;
yy = cursor->image.dy - info->var.yoffset;
xx = cursor->image.dx - info->var.xoffset;
temp = yy & 0xFFFF;
temp |= (xx << 16);
writel(temp, viaparinfo->io_virt + VIA_REG_CURSOR_POS);
}
if (cursor->set & FB_CUR_SETSIZE) {
temp = readl(viaparinfo->io_virt + VIA_REG_CURSOR_MODE);
if ((cursor->image.width <= 32)
&& (cursor->image.height <= 32)) {
MAX_CURS = 32;
temp |= 0x2;
} else if ((cursor->image.width <= 64)
&& (cursor->image.height <= 64)) {
MAX_CURS = 64;
temp &= 0xFFFFFFFD;
} else {
DEBUG_MSG(KERN_INFO
"The cursor image is biger than 64x64 bits...\n");
return -ENXIO;
}
writel(temp, viaparinfo->io_virt + VIA_REG_CURSOR_MODE);
viacursor.image.height = cursor->image.height;
viacursor.image.width = cursor->image.width;
}
if (cursor->set & FB_CUR_SETCMAP) {
viacursor.image.fg_color = cursor->image.fg_color;
viacursor.image.bg_color = cursor->image.bg_color;
switch (info->var.bits_per_pixel) {
case 8:
case 16:
case 32:
bg_col =
(0xFF << 24) |
(((info->cmap.red)[viacursor.image.bg_color] &
0xFF00) << 8) |
((info->cmap.green)[viacursor.image.bg_color] &
0xFF00) |
(((info->cmap.blue)[viacursor.image.bg_color] &
0xFF00) >> 8);
fg_col =
(0xFF << 24) |
(((info->cmap.red)[viacursor.image.fg_color] &
0xFF00) << 8) |
((info->cmap.green)[viacursor.image.fg_color] &
0xFF00) |
(((info->cmap.blue)[viacursor.image.fg_color] &
0xFF00) >> 8);
break;
default:
return 0;
}
/* This is indeed a patch for VT3324/VT3353 */
if (!info->par)
return 0;
p_viafb_par = (struct viafb_par *)info->par;
if ((p_viafb_par->chip_info->gfx_chip_name ==
UNICHROME_CX700) ||
((p_viafb_par->chip_info->gfx_chip_name ==
UNICHROME_VX800))) {
bg_col =
(((info->cmap.red)[viacursor.image.bg_color] &
0xFFC0) << 14) |
(((info->cmap.green)[viacursor.image.bg_color] &
0xFFC0) << 4) |
(((info->cmap.blue)[viacursor.image.bg_color] &
0xFFC0) >> 6);
fg_col =
(((info->cmap.red)[viacursor.image.fg_color] &
0xFFC0) << 14) |
(((info->cmap.green)[viacursor.image.fg_color] &
0xFFC0) << 4) |
(((info->cmap.blue)[viacursor.image.fg_color] &
0xFFC0) >> 6);
}
writel(bg_col, viaparinfo->io_virt + VIA_REG_CURSOR_BG);
writel(fg_col, viaparinfo->io_virt + VIA_REG_CURSOR_FG);
}
if (cursor->set & FB_CUR_SETSHAPE) {
struct {
u8 data[CURSOR_SIZE / 8];
u32 bak[CURSOR_SIZE / 32];
} *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
int size =
((viacursor.image.width + 7) >> 3) *
viacursor.image.height;
if (cr_data == NULL)
goto out;
if (MAX_CURS == 32) {
for (i = 0; i < (CURSOR_SIZE / 32); i++) {
cr_data->bak[i] = 0x0;
cr_data->bak[i + 1] = 0xFFFFFFFF;
i += 1;
}
} else if (MAX_CURS == 64) {
for (i = 0; i < (CURSOR_SIZE / 32); i++) {
cr_data->bak[i] = 0x0;
cr_data->bak[i + 1] = 0x0;
cr_data->bak[i + 2] = 0xFFFFFFFF;
cr_data->bak[i + 3] = 0xFFFFFFFF;
i += 3;
}
}
switch (viacursor.rop) {
case ROP_XOR:
for (i = 0; i < size; i++)
cr_data->data[i] = viacursor.mask[i];
break;
case ROP_COPY:
for (i = 0; i < size; i++)
cr_data->data[i] = viacursor.mask[i];
break;
default:
break;
}
if (MAX_CURS == 32) {
for (i = 0; i < size; i++) {
cr_data->bak[j] = (u32) cr_data->data[i];
cr_data->bak[j + 1] = ~cr_data->bak[j];
j += 2;
}
} else if (MAX_CURS == 64) {
for (i = 0; i < size; i++) {
cr_data->bak[j] = (u32) cr_data->data[i];
cr_data->bak[j + 1] = 0x0;
cr_data->bak[j + 2] = ~cr_data->bak[j];
cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
j += 4;
}
}
memcpy(((struct viafb_par *)(info->par))->fbmem_virt +
((struct viafb_par *)(info->par))->cursor_start,
cr_data->bak, CURSOR_SIZE);
out:
kfree(cr_data);
}
if (viacursor.enable)
viafb_show_hw_cursor(info, HW_Cursor_ON);
return 0;
}
static int viafb_sync(struct fb_info *info)
{
if (viafb_accel)
viafb_wait_engine_idle();
return 0;
}
int viafb_get_mode_index(int hres, int vres)
{
u32 i;
DEBUG_MSG(KERN_INFO "viafb_get_mode_index!\n");
for (i = 0; viafb_modentry[i].mode_index != VIA_RES_INVALID; i++)
if (viafb_modentry[i].xres == hres &&
viafb_modentry[i].yres == vres)
break;
return viafb_modentry[i].mode_index;
}
static void check_available_device_to_enable(int device_id)
{
int device_num = 0;
/* Initialize: */
viafb_CRT_ON = STATE_OFF;
viafb_DVI_ON = STATE_OFF;
viafb_LCD_ON = STATE_OFF;
viafb_LCD2_ON = STATE_OFF;
viafb_DeviceStatus = None_Device;
if ((device_id & CRT_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
viafb_CRT_ON = STATE_ON;
device_num++;
viafb_DeviceStatus |= CRT_Device;
}
if ((device_id & DVI_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
viafb_DVI_ON = STATE_ON;
device_num++;
viafb_DeviceStatus |= DVI_Device;
}
if ((device_id & LCD_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
viafb_LCD_ON = STATE_ON;
device_num++;
viafb_DeviceStatus |= LCD_Device;
}
if ((device_id & LCD2_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
viafb_LCD2_ON = STATE_ON;
device_num++;
viafb_DeviceStatus |= LCD2_Device;
}
if (viafb_DeviceStatus == None_Device) {
/* Use CRT as default active device: */
viafb_CRT_ON = STATE_ON;
viafb_DeviceStatus = CRT_Device;
}
DEBUG_MSG(KERN_INFO "Device Status:%x", viafb_DeviceStatus);
}
static void viafb_set_device(struct device_t active_dev)
{
/* Check available device to enable: */
int device_id = None_Device;
if (active_dev.crt)
device_id |= CRT_Device;
if (active_dev.dvi)
device_id |= DVI_Device;
if (active_dev.lcd)
device_id |= LCD_Device;
check_available_device_to_enable(device_id);
/* Check property of LCD: */
if (viafb_LCD_ON) {
if (active_dev.lcd_dsp_cent) {
viaparinfo->lvds_setting_info->display_method =
viafb_lcd_dsp_method = LCD_CENTERING;
} else {
viaparinfo->lvds_setting_info->display_method =
viafb_lcd_dsp_method = LCD_EXPANDSION;
}
if (active_dev.lcd_mode == LCD_SPWG) {
viaparinfo->lvds_setting_info->lcd_mode =
viafb_lcd_mode = LCD_SPWG;
} else {
viaparinfo->lvds_setting_info->lcd_mode =
viafb_lcd_mode = LCD_OPENLDI;
}
if (active_dev.lcd_panel_id <= LCD_PANEL_ID_MAXIMUM) {
viafb_lcd_panel_id = active_dev.lcd_panel_id;
viafb_init_lcd_size();
}
}
/* Check property of mode: */
if (!active_dev.xres1)
viafb_second_xres = 640;
else
viafb_second_xres = active_dev.xres1;
if (!active_dev.yres1)
viafb_second_yres = 480;
else
viafb_second_yres = active_dev.yres1;
if (active_dev.bpp != 0)
viafb_bpp = active_dev.bpp;
if (active_dev.bpp1 != 0)
viafb_bpp1 = active_dev.bpp1;
if (active_dev.refresh != 0)
viafb_refresh = active_dev.refresh;
if (active_dev.refresh1 != 0)
viafb_refresh1 = active_dev.refresh1;
if ((active_dev.samm == STATE_OFF) || (active_dev.samm == STATE_ON))
viafb_SAMM_ON = active_dev.samm;
viafb_primary_dev = active_dev.primary_dev;
viafb_set_start_addr();
viafb_set_iga_path();
}
static void viafb_set_video_device(u32 video_dev_info)
{
viaparinfo->video_on_crt = STATE_OFF;
viaparinfo->video_on_dvi = STATE_OFF;
viaparinfo->video_on_lcd = STATE_OFF;
/* Check available device to enable: */
if ((video_dev_info & CRT_Device) == CRT_Device)
viaparinfo->video_on_crt = STATE_ON;
else if ((video_dev_info & DVI_Device) == DVI_Device)
viaparinfo->video_on_dvi = STATE_ON;
else if ((video_dev_info & LCD_Device) == LCD_Device)
viaparinfo->video_on_lcd = STATE_ON;
}
static void viafb_get_video_device(u32 *video_dev_info)
{
*video_dev_info = None_Device;
if (viaparinfo->video_on_crt == STATE_ON)
*video_dev_info |= CRT_Device;
else if (viaparinfo->video_on_dvi == STATE_ON)
*video_dev_info |= DVI_Device;
else if (viaparinfo->video_on_lcd == STATE_ON)
*video_dev_info |= LCD_Device;
}
static int get_primary_device(void)
{
int primary_device = 0;
/* Rule: device on iga1 path are the primary device. */
if (viafb_SAMM_ON) {
if (viafb_CRT_ON) {
if (viaparinfo->crt_setting_info->iga_path == IGA1) {
DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n",
viaparinfo->
crt_setting_info->iga_path);
primary_device = CRT_Device;
}
}
if (viafb_DVI_ON) {
if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
viaparinfo->
tmds_setting_info->iga_path);
primary_device = DVI_Device;
}
}
if (viafb_LCD_ON) {
if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
viaparinfo->
lvds_setting_info->iga_path);
primary_device = LCD_Device;
}
}
if (viafb_LCD2_ON) {
if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
viaparinfo->
lvds_setting_info2->iga_path);
primary_device = LCD2_Device;
}
}
}
return primary_device;
}
static u8 is_duoview(void)
{
if (0 == viafb_SAMM_ON) {
if (viafb_LCD_ON + viafb_LCD2_ON +
viafb_DVI_ON + viafb_CRT_ON == 2)
return true;
return false;
} else {
return false;
}
}
static void apply_second_mode_setting(struct fb_var_screeninfo
*sec_var)
{
u32 htotal, vtotal, long_refresh;
htotal = sec_var->xres + sec_var->left_margin +
sec_var->right_margin + sec_var->hsync_len;
vtotal = sec_var->yres + sec_var->upper_margin +
sec_var->lower_margin + sec_var->vsync_len;
if ((sec_var->xres_virtual * (sec_var->bits_per_pixel >> 3)) & 0x1F) {
/*Is 32 bytes alignment? */
/*32 pixel alignment */
sec_var->xres_virtual = (sec_var->xres_virtual + 31) & ~31;
}
htotal = sec_var->xres + sec_var->left_margin +
sec_var->right_margin + sec_var->hsync_len;
vtotal = sec_var->yres + sec_var->upper_margin +
sec_var->lower_margin + sec_var->vsync_len;
long_refresh = 1000000000UL / sec_var->pixclock * 1000;
long_refresh /= (htotal * vtotal);
viafb_second_xres = sec_var->xres;
viafb_second_yres = sec_var->yres;
viafb_second_virtual_xres = sec_var->xres_virtual;
viafb_second_virtual_yres = sec_var->yres_virtual;
viafb_bpp1 = sec_var->bits_per_pixel;
viafb_refresh1 = viafb_get_refresh(sec_var->xres, sec_var->yres,
long_refresh);
}
static int apply_device_setting(struct viafb_ioctl_setting setting_info,
struct fb_info *info)
{
int need_set_mode = 0;
DEBUG_MSG(KERN_INFO "apply_device_setting\n");
if (setting_info.device_flag) {
need_set_mode = 1;
check_available_device_to_enable(setting_info.device_status);
}
/* Unlock LCD's operation according to LCD flag
and check if the setting value is valid. */
/* If the value is valid, apply the new setting value to the device. */
if (viafb_LCD_ON) {
if (setting_info.lcd_operation_flag & OP_LCD_CENTERING) {
need_set_mode = 1;
if (setting_info.lcd_attributes.display_center) {
/* Centering */
viaparinfo->lvds_setting_info->display_method =
LCD_CENTERING;
viafb_lcd_dsp_method = LCD_CENTERING;
viaparinfo->lvds_setting_info2->display_method =
viafb_lcd_dsp_method = LCD_CENTERING;
} else {
/* expandsion */
viaparinfo->lvds_setting_info->display_method =
LCD_EXPANDSION;
viafb_lcd_dsp_method = LCD_EXPANDSION;
viaparinfo->lvds_setting_info2->display_method =
LCD_EXPANDSION;
viafb_lcd_dsp_method = LCD_EXPANDSION;
}
}
if (setting_info.lcd_operation_flag & OP_LCD_MODE) {
need_set_mode = 1;
if (setting_info.lcd_attributes.lcd_mode ==
LCD_SPWG) {
viaparinfo->lvds_setting_info->lcd_mode =
viafb_lcd_mode = LCD_SPWG;
} else {
viaparinfo->lvds_setting_info->lcd_mode =
viafb_lcd_mode = LCD_OPENLDI;
}
viaparinfo->lvds_setting_info2->lcd_mode =
viaparinfo->lvds_setting_info->lcd_mode;
}
if (setting_info.lcd_operation_flag & OP_LCD_PANEL_ID) {
need_set_mode = 1;
if (setting_info.lcd_attributes.panel_id <=
LCD_PANEL_ID_MAXIMUM) {
viafb_lcd_panel_id =
setting_info.lcd_attributes.panel_id;
viafb_init_lcd_size();
}
}
}
if (0 != (setting_info.samm_status & OP_SAMM)) {
setting_info.samm_status =
setting_info.samm_status & (~OP_SAMM);
if (setting_info.samm_status == 0
|| setting_info.samm_status == 1) {
viafb_SAMM_ON = setting_info.samm_status;
if (viafb_SAMM_ON)
viafb_primary_dev = setting_info.primary_device;
viafb_set_start_addr();
viafb_set_iga_path();
}
need_set_mode = 1;
}
viaparinfo->duoview = is_duoview();
if (!need_set_mode) {
;
} else {
viafb_set_iga_path();
viafb_set_par(info);
}
return true;
}
static void retrieve_device_setting(struct viafb_ioctl_setting
*setting_info)
{
/* get device status */
if (viafb_CRT_ON == 1)
setting_info->device_status = CRT_Device;
if (viafb_DVI_ON == 1)
setting_info->device_status |= DVI_Device;
if (viafb_LCD_ON == 1)
setting_info->device_status |= LCD_Device;
if (viafb_LCD2_ON == 1)
setting_info->device_status |= LCD2_Device;
if ((viaparinfo->video_on_crt == 1) && (viafb_CRT_ON == 1)) {
setting_info->video_device_status =
viaparinfo->crt_setting_info->iga_path;
} else if ((viaparinfo->video_on_dvi == 1) && (viafb_DVI_ON == 1)) {
setting_info->video_device_status =
viaparinfo->tmds_setting_info->iga_path;
} else if ((viaparinfo->video_on_lcd == 1) && (viafb_LCD_ON == 1)) {
setting_info->video_device_status =
viaparinfo->lvds_setting_info->iga_path;
} else {
setting_info->video_device_status = 0;
}
setting_info->samm_status = viafb_SAMM_ON;
setting_info->primary_device = get_primary_device();
setting_info->first_dev_bpp = viafb_bpp;
setting_info->second_dev_bpp = viafb_bpp1;
setting_info->first_dev_refresh = viafb_refresh;
setting_info->second_dev_refresh = viafb_refresh1;
setting_info->first_dev_hor_res = viafb_hotplug_Xres;
setting_info->first_dev_ver_res = viafb_hotplug_Yres;
setting_info->second_dev_hor_res = viafb_second_xres;
setting_info->second_dev_ver_res = viafb_second_yres;
/* Get lcd attributes */
setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
}
static void parse_active_dev(void)
{
viafb_CRT_ON = STATE_OFF;
viafb_DVI_ON = STATE_OFF;
viafb_LCD_ON = STATE_OFF;
viafb_LCD2_ON = STATE_OFF;
/* 1. Modify the active status of devices. */
/* 2. Keep the order of devices, so we can set corresponding
IGA path to devices in SAMM case. */
/* Note: The previous of active_dev is primary device,
and the following is secondary device. */
if (!strncmp(viafb_active_dev, "CRT+DVI", 7)) {
/* CRT+DVI */
viafb_CRT_ON = STATE_ON;
viafb_DVI_ON = STATE_ON;
viafb_primary_dev = CRT_Device;
} else if (!strncmp(viafb_active_dev, "DVI+CRT", 7)) {
/* DVI+CRT */
viafb_CRT_ON = STATE_ON;
viafb_DVI_ON = STATE_ON;
viafb_primary_dev = DVI_Device;
} else if (!strncmp(viafb_active_dev, "CRT+LCD", 7)) {
/* CRT+LCD */
viafb_CRT_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = CRT_Device;
} else if (!strncmp(viafb_active_dev, "LCD+CRT", 7)) {
/* LCD+CRT */
viafb_CRT_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strncmp(viafb_active_dev, "DVI+LCD", 7)) {
/* DVI+LCD */
viafb_DVI_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = DVI_Device;
} else if (!strncmp(viafb_active_dev, "LCD+DVI", 7)) {
/* LCD+DVI */
viafb_DVI_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strncmp(viafb_active_dev, "LCD+LCD2", 8)) {
viafb_LCD_ON = STATE_ON;
viafb_LCD2_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strncmp(viafb_active_dev, "LCD2+LCD", 8)) {
viafb_LCD_ON = STATE_ON;
viafb_LCD2_ON = STATE_ON;
viafb_primary_dev = LCD2_Device;
} else if (!strncmp(viafb_active_dev, "CRT", 3)) {
/* CRT only */
viafb_CRT_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else if (!strncmp(viafb_active_dev, "DVI", 3)) {
/* DVI only */
viafb_DVI_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else if (!strncmp(viafb_active_dev, "LCD", 3)) {
/* LCD only */
viafb_LCD_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else {
viafb_CRT_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
}
viaparinfo->duoview = is_duoview();
}
static void parse_video_dev(void)
{
viaparinfo->video_on_crt = STATE_OFF;
viaparinfo->video_on_dvi = STATE_OFF;
viaparinfo->video_on_lcd = STATE_OFF;
if (!strncmp(viafb_video_dev, "CRT", 3)) {
/* Video on CRT */
viaparinfo->video_on_crt = STATE_ON;
} else if (!strncmp(viafb_video_dev, "DVI", 3)) {
/* Video on DVI */
viaparinfo->video_on_dvi = STATE_ON;
} else if (!strncmp(viafb_video_dev, "LCD", 3)) {
/* Video on LCD */
viaparinfo->video_on_lcd = STATE_ON;
}
}
static int parse_port(char *opt_str, int *output_interface)
{
if (!strncmp(opt_str, "DVP0", 4))
*output_interface = INTERFACE_DVP0;
else if (!strncmp(opt_str, "DVP1", 4))
*output_interface = INTERFACE_DVP1;
else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
*output_interface = INTERFACE_DFP;
else if (!strncmp(opt_str, "DFP_HIGH", 8))
*output_interface = INTERFACE_DFP_HIGH;
else if (!strncmp(opt_str, "DFP_LOW", 7))
*output_interface = INTERFACE_DFP_LOW;
else
*output_interface = INTERFACE_NONE;
return 0;
}
static void parse_lcd_port(void)
{
parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
output_interface);
/*Initialize to avoid unexpected behavior */
viaparinfo->chip_info->lvds_chip_info2.output_interface =
INTERFACE_NONE;
DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
output_interface);
}
static void parse_dvi_port(void)
{
parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
output_interface);
DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
output_interface);
}
/*
* The proc filesystem read/write function, a simple proc implement to
* get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
* DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
* CR9B, SR65, CR97, CR99
*/
static int viafb_dvp0_proc_read(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int len = 0;
u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
dvp0_data_dri =
(viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
(viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
dvp0_clk_dri =
(viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
(viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
len +=
sprintf(buf + len, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
*eof = 1; /*Inform kernel end of data */
return len;
}
static int viafb_dvp0_proc_write(struct file *file,
const char __user *buffer, unsigned long count, void *data)
{
char buf[20], *value, *pbuf;
u8 reg_val = 0;
unsigned long length, i;
if (count < 1)
return -EINVAL;
length = count > 20 ? 20 : count;
if (copy_from_user(&buf[0], buffer, length))
return -EFAULT;
buf[length - 1] = '\0'; /*Ensure end string */
pbuf = &buf[0];
for (i = 0; i < 3; i++) {
value = strsep(&pbuf, " ");
if (value != NULL) {
strict_strtoul(value, 0, (unsigned long *)&reg_val);
DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
reg_val);
switch (i) {
case 0:
viafb_write_reg_mask(CR96, VIACR,
reg_val, 0x0f);
break;
case 1:
viafb_write_reg_mask(SR2A, VIASR,
reg_val << 4, BIT5);
viafb_write_reg_mask(SR1B, VIASR,
reg_val << 1, BIT1);
break;
case 2:
viafb_write_reg_mask(SR2A, VIASR,
reg_val << 3, BIT4);
viafb_write_reg_mask(SR1E, VIASR,
reg_val << 2, BIT2);
break;
default:
break;
}
} else {
break;
}
}
return count;
}
static int viafb_dvp1_proc_read(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int len = 0;
u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
len +=
sprintf(buf + len, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
*eof = 1; /*Inform kernel end of data */
return len;
}
static int viafb_dvp1_proc_write(struct file *file,
const char __user *buffer, unsigned long count, void *data)
{
char buf[20], *value, *pbuf;
u8 reg_val = 0;
unsigned long length, i;
if (count < 1)
return -EINVAL;
length = count > 20 ? 20 : count;
if (copy_from_user(&buf[0], buffer, length))
return -EFAULT;
buf[length - 1] = '\0'; /*Ensure end string */
pbuf = &buf[0];
for (i = 0; i < 3; i++) {
value = strsep(&pbuf, " ");
if (value != NULL) {
strict_strtoul(value, 0, (unsigned long *)&reg_val);
switch (i) {
case 0:
viafb_write_reg_mask(CR9B, VIACR,
reg_val, 0x0f);
break;
case 1:
viafb_write_reg_mask(SR65, VIASR,
reg_val << 2, 0x0c);
break;
case 2:
viafb_write_reg_mask(SR65, VIASR,
reg_val, 0x03);
break;
default:
break;
}
} else {
break;
}
}
return count;
}
static int viafb_dfph_proc_read(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int len = 0;
u8 dfp_high = 0;
dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
len += sprintf(buf + len, "%x\n", dfp_high);
*eof = 1; /*Inform kernel end of data */
return len;
}
static int viafb_dfph_proc_write(struct file *file,
const char __user *buffer, unsigned long count, void *data)
{
char buf[20];
u8 reg_val = 0;
unsigned long length;
if (count < 1)
return -EINVAL;
length = count > 20 ? 20 : count;
if (copy_from_user(&buf[0], buffer, length))
return -EFAULT;
buf[length - 1] = '\0'; /*Ensure end string */
strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
return count;
}
static int viafb_dfpl_proc_read(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int len = 0;
u8 dfp_low = 0;
dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
len += sprintf(buf + len, "%x\n", dfp_low);
*eof = 1; /*Inform kernel end of data */
return len;
}
static int viafb_dfpl_proc_write(struct file *file,
const char __user *buffer, unsigned long count, void *data)
{
char buf[20];
u8 reg_val = 0;
unsigned long length;
if (count < 1)
return -EINVAL;
length = count > 20 ? 20 : count;
if (copy_from_user(&buf[0], buffer, length))
return -EFAULT;
buf[length - 1] = '\0'; /*Ensure end string */
strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
return count;
}
static int viafb_vt1636_proc_read(char *buf, char **start,
off_t offset, int count, int *eof, void *data)
{
int len = 0;
u8 vt1636_08 = 0, vt1636_09 = 0;
switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
case VT1636_LVDS:
vt1636_08 =
viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
&viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
vt1636_09 =
viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
&viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
len += sprintf(buf + len, "%x %x\n", vt1636_08, vt1636_09);
break;
default:
break;
}
switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
case VT1636_LVDS:
vt1636_08 =
viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
&viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
vt1636_09 =
viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
&viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
len += sprintf(buf + len, " %x %x\n", vt1636_08, vt1636_09);
break;
default:
break;
}
*eof = 1; /*Inform kernel end of data */
return len;
}
static int viafb_vt1636_proc_write(struct file *file,
const char __user *buffer, unsigned long count, void *data)
{
char buf[30], *value, *pbuf;
struct IODATA reg_val;
unsigned long length, i;
if (count < 1)
return -EINVAL;
length = count > 30 ? 30 : count;
if (copy_from_user(&buf[0], buffer, length))
return -EFAULT;
buf[length - 1] = '\0'; /*Ensure end string */
pbuf = &buf[0];
switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
case VT1636_LVDS:
for (i = 0; i < 2; i++) {
value = strsep(&pbuf, " ");
if (value != NULL) {
strict_strtoul(value, 0,
(unsigned long *)&reg_val.Data);
switch (i) {
case 0:
reg_val.Index = 0x08;
reg_val.Mask = 0x0f;
viafb_gpio_i2c_write_mask_lvds
(viaparinfo->lvds_setting_info,
&viaparinfo->
chip_info->lvds_chip_info,
reg_val);
break;
case 1:
reg_val.Index = 0x09;
reg_val.Mask = 0x1f;
viafb_gpio_i2c_write_mask_lvds
(viaparinfo->lvds_setting_info,
&viaparinfo->
chip_info->lvds_chip_info,
reg_val);
break;
default:
break;
}
} else {
break;
}
}
break;
default:
break;
}
switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
case VT1636_LVDS:
for (i = 0; i < 2; i++) {
value = strsep(&pbuf, " ");
if (value != NULL) {
strict_strtoul(value, 0,
(unsigned long *)&reg_val.Data);
switch (i) {
case 0:
reg_val.Index = 0x08;
reg_val.Mask = 0x0f;
viafb_gpio_i2c_write_mask_lvds
(viaparinfo->lvds_setting_info2,
&viaparinfo->
chip_info->lvds_chip_info2,
reg_val);
break;
case 1:
reg_val.Index = 0x09;
reg_val.Mask = 0x1f;
viafb_gpio_i2c_write_mask_lvds
(viaparinfo->lvds_setting_info2,
&viaparinfo->
chip_info->lvds_chip_info2,
reg_val);
break;
default:
break;
}
} else {
break;
}
}
break;
default:
break;
}
return count;
}
static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
{
struct proc_dir_entry *entry;
*viafb_entry = proc_mkdir("viafb", NULL);
if (viafb_entry) {
entry = create_proc_entry("dvp0", 0, *viafb_entry);
if (entry) {
entry->read_proc = viafb_dvp0_proc_read;
entry->write_proc = viafb_dvp0_proc_write;
}
entry = create_proc_entry("dvp1", 0, *viafb_entry);
if (entry) {
entry->read_proc = viafb_dvp1_proc_read;
entry->write_proc = viafb_dvp1_proc_write;
}
entry = create_proc_entry("dfph", 0, *viafb_entry);
if (entry) {
entry->read_proc = viafb_dfph_proc_read;
entry->write_proc = viafb_dfph_proc_write;
}
entry = create_proc_entry("dfpl", 0, *viafb_entry);
if (entry) {
entry->read_proc = viafb_dfpl_proc_read;
entry->write_proc = viafb_dfpl_proc_write;
}
if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
lvds_chip_name || VT1636_LVDS ==
viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
entry = create_proc_entry("vt1636", 0, *viafb_entry);
if (entry) {
entry->read_proc = viafb_vt1636_proc_read;
entry->write_proc = viafb_vt1636_proc_write;
}
}
}
}
static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
{
/* no problem if it was not registered */
remove_proc_entry("dvp0", viafb_entry);/* parent dir */
remove_proc_entry("dvp1", viafb_entry);
remove_proc_entry("dfph", viafb_entry);
remove_proc_entry("dfpl", viafb_entry);
remove_proc_entry("vt1636", viafb_entry);
remove_proc_entry("vt1625", viafb_entry);
remove_proc_entry("viafb", NULL);
}
static int __devinit via_pci_probe(void)
{
unsigned long default_xres, default_yres;
char *tmpc, *tmpm;
char *tmpc_sec, *tmpm_sec;
int vmode_index;
u32 tmds_length, lvds_length, crt_length, chip_length, viafb_par_length;
DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
tmds_length = ALIGN(sizeof(struct tmds_setting_information),
BITS_PER_LONG/8);
lvds_length = ALIGN(sizeof(struct lvds_setting_information),
BITS_PER_LONG/8);
crt_length = ALIGN(sizeof(struct lvds_setting_information),
BITS_PER_LONG/8);
chip_length = ALIGN(sizeof(struct chip_information), BITS_PER_LONG/8);
/* Allocate fb_info and ***_par here, also including some other needed
* variables
*/
viafbinfo = framebuffer_alloc(viafb_par_length + 2 * lvds_length +
tmds_length + crt_length + chip_length, NULL);
if (!viafbinfo) {
printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
return -ENODEV;
}
viaparinfo = (struct viafb_par *)viafbinfo->par;
viaparinfo->tmds_setting_info = (struct tmds_setting_information *)
((unsigned long)viaparinfo + viafb_par_length);
viaparinfo->lvds_setting_info = (struct lvds_setting_information *)
((unsigned long)viaparinfo->tmds_setting_info + tmds_length);
viaparinfo->lvds_setting_info2 = (struct lvds_setting_information *)
((unsigned long)viaparinfo->lvds_setting_info + lvds_length);
viaparinfo->crt_setting_info = (struct crt_setting_information *)
((unsigned long)viaparinfo->lvds_setting_info2 + lvds_length);
viaparinfo->chip_info = (struct chip_information *)
((unsigned long)viaparinfo->crt_setting_info + crt_length);
if (viafb_dual_fb)
viafb_SAMM_ON = 1;
parse_active_dev();
parse_video_dev();
parse_lcd_port();
parse_dvi_port();
/* for dual-fb must viafb_SAMM_ON=1 and viafb_dual_fb=1 */
if (!viafb_SAMM_ON)
viafb_dual_fb = 0;
/* Set up I2C bus stuff */
viafb_create_i2c_bus(viaparinfo);
viafb_init_chip_info();
viafb_get_fb_info(&viaparinfo->fbmem, &viaparinfo->memsize);
viaparinfo->fbmem_free = viaparinfo->memsize;
viaparinfo->fbmem_used = 0;
viaparinfo->fbmem_virt = ioremap_nocache(viaparinfo->fbmem,
viaparinfo->memsize);
viafbinfo->screen_base = (char *)viaparinfo->fbmem_virt;
if (!viaparinfo->fbmem_virt) {
printk(KERN_INFO "ioremap failed\n");
return -1;
}
viafb_get_mmio_info(&viaparinfo->mmio_base, &viaparinfo->mmio_len);
viaparinfo->io_virt = ioremap_nocache(viaparinfo->mmio_base,
viaparinfo->mmio_len);
viafbinfo->node = 0;
viafbinfo->fbops = &viafb_ops;
viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
viafbinfo->pseudo_palette = pseudo_pal;
if (viafb_accel) {
viafb_init_accel();
viafb_init_2d_engine();
viafb_hw_cursor_init();
}
if (viafb_second_size && (viafb_second_size < 8)) {
viafb_second_offset = viaparinfo->fbmem_free -
viafb_second_size * 1024 * 1024;
} else {
viafb_second_size = 8;
viafb_second_offset = viaparinfo->fbmem_free -
viafb_second_size * 1024 * 1024;
}
viafb_FB_MM = viaparinfo->fbmem_virt;
tmpm = viafb_mode;
tmpc = strsep(&tmpm, "x");
strict_strtoul(tmpc, 0, &default_xres);
strict_strtoul(tmpm, 0, &default_yres);
vmode_index = viafb_get_mode_index(default_xres, default_yres);
DEBUG_MSG(KERN_INFO "0->index=%d\n", vmode_index);
if (viafb_SAMM_ON == 1) {
if (strcmp(viafb_mode, viafb_mode1)) {
tmpm_sec = viafb_mode1;
tmpc_sec = strsep(&tmpm_sec, "x");
strict_strtoul(tmpc_sec, 0,
(unsigned long *)&viafb_second_xres);
strict_strtoul(tmpm_sec, 0,
(unsigned long *)&viafb_second_yres);
} else {
viafb_second_xres = default_xres;
viafb_second_yres = default_yres;
}
if (0 == viafb_second_virtual_xres) {
switch (viafb_second_xres) {
case 1400:
viafb_second_virtual_xres = 1408;
break;
default:
viafb_second_virtual_xres = viafb_second_xres;
break;
}
}
if (0 == viafb_second_virtual_yres)
viafb_second_virtual_yres = viafb_second_yres;
}
switch (viafb_bpp) {
case 0 ... 8:
viafb_bpp = 8;
break;
case 9 ... 16:
viafb_bpp = 16;
break;
case 17 ... 32:
viafb_bpp = 32;
break;
default:
viafb_bpp = 8;
}
default_var.xres = default_xres;
default_var.yres = default_yres;
switch (default_xres) {
case 1400:
default_var.xres_virtual = 1408;
break;
default:
default_var.xres_virtual = default_xres;
break;
}
default_var.yres_virtual = default_yres;
default_var.bits_per_pixel = viafb_bpp;
if (default_var.bits_per_pixel == 15)
default_var.bits_per_pixel = 16;
default_var.pixclock =
viafb_get_pixclock(default_xres, default_yres, viafb_refresh);
default_var.left_margin = (default_xres >> 3) & 0xf8;
default_var.right_margin = 32;
default_var.upper_margin = 16;
default_var.lower_margin = 4;
default_var.hsync_len = default_var.left_margin;
default_var.vsync_len = 4;
default_var.accel_flags = 0;
if (viafb_accel) {
viafbinfo->flags |=
(FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_IMAGEBLIT);
default_var.accel_flags |= FB_ACCELF_TEXT;
} else
viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
if (viafb_dual_fb) {
viafbinfo1 = framebuffer_alloc(viafb_par_length, NULL);
if (!viafbinfo1) {
printk(KERN_ERR
"allocate the second framebuffer struct error\n");
framebuffer_release(viafbinfo);
return -ENOMEM;
}
viaparinfo1 = viafbinfo1->par;
memcpy(viaparinfo1, viaparinfo, viafb_par_length);
viaparinfo1->memsize = viaparinfo->memsize -
viafb_second_offset;
viaparinfo->memsize = viafb_second_offset;
viaparinfo1->fbmem_virt = viaparinfo->fbmem_virt +
viafb_second_offset;
viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
viaparinfo1->fbmem_free = viaparinfo1->memsize -
viaparinfo1->fbmem_used;
viaparinfo->fbmem_free = viaparinfo->memsize;
viaparinfo->fbmem_used = 0;
if (viafb_accel) {
viaparinfo1->cursor_start =
viaparinfo->cursor_start - viafb_second_offset;
viaparinfo1->VQ_start = viaparinfo->VQ_start -
viafb_second_offset;
viaparinfo1->VQ_end = viaparinfo->VQ_end -
viafb_second_offset;
}
memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
viafbinfo1->screen_base = viafbinfo->screen_base +
viafb_second_offset;
viafbinfo1->fix.smem_start = viaparinfo1->fbmem;
viafbinfo1->fix.smem_len = viaparinfo1->fbmem_free;
default_var.xres = viafb_second_xres;
default_var.yres = viafb_second_yres;
default_var.xres_virtual = viafb_second_virtual_xres;
default_var.yres_virtual = viafb_second_virtual_yres;
if (viafb_bpp1 != viafb_bpp)
viafb_bpp1 = viafb_bpp;
default_var.bits_per_pixel = viafb_bpp1;
default_var.pixclock =
viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
viafb_refresh);
default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
default_var.right_margin = 32;
default_var.upper_margin = 16;
default_var.lower_margin = 4;
default_var.hsync_len = default_var.left_margin;
default_var.vsync_len = 4;
viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
viafb_check_var(&default_var, viafbinfo1);
viafbinfo1->var = default_var;
viafb_update_viafb_par(viafbinfo);
viafb_update_fix(&viafbinfo1->fix, viafbinfo1);
}
viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
viafb_check_var(&default_var, viafbinfo);
viafbinfo->var = default_var;
viafb_update_viafb_par(viafbinfo);
viafb_update_fix(&viafbinfo->fix, viafbinfo);
default_var.activate = FB_ACTIVATE_NOW;
fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
if (register_framebuffer(viafbinfo1) < 0)
return -EINVAL;
}
if (register_framebuffer(viafbinfo) < 0)
return -EINVAL;
if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
|| (viaparinfo->chip_info->gfx_chip_name !=
UNICHROME_CLE266))) {
if (register_framebuffer(viafbinfo1) < 0)
return -EINVAL;
}
DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
viafbinfo->node, viafbinfo->fix.id, default_var.xres,
default_var.yres, default_var.bits_per_pixel);
viafb_init_proc(&viaparinfo->proc_entry);
viafb_init_dac(IGA2);
return 0;
}
static void __devexit via_pci_remove(void)
{
DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
fb_dealloc_cmap(&viafbinfo->cmap);
unregister_framebuffer(viafbinfo);
if (viafb_dual_fb)
unregister_framebuffer(viafbinfo1);
iounmap((void *)viaparinfo->fbmem_virt);
iounmap(viaparinfo->io_virt);
viafb_delete_i2c_buss(viaparinfo);
framebuffer_release(viafbinfo);
if (viafb_dual_fb)
framebuffer_release(viafbinfo1);
viafb_remove_proc(viaparinfo->proc_entry);
}
#ifndef MODULE
static int __init viafb_setup(char *options)
{
char *this_opt;
DEBUG_MSG(KERN_INFO "viafb_setup!\n");
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt)
continue;
if (!strncmp(this_opt, "viafb_mode1=", 12))
viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
else if (!strncmp(this_opt, "viafb_mode=", 11))
viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
else if (!strncmp(this_opt, "viafb_bpp1=", 11))
strict_strtoul(this_opt + 11, 0,
(unsigned long *)&viafb_bpp1);
else if (!strncmp(this_opt, "viafb_bpp=", 10))
strict_strtoul(this_opt + 10, 0,
(unsigned long *)&viafb_bpp);
else if (!strncmp(this_opt, "viafb_refresh1=", 15))
strict_strtoul(this_opt + 15, 0,
(unsigned long *)&viafb_refresh1);
else if (!strncmp(this_opt, "viafb_refresh=", 14))
strict_strtoul(this_opt + 14, 0,
(unsigned long *)&viafb_refresh);
else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
strict_strtoul(this_opt + 21, 0,
(unsigned long *)&viafb_lcd_dsp_method);
else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
strict_strtoul(this_opt + 19, 0,
(unsigned long *)&viafb_lcd_panel_id);
else if (!strncmp(this_opt, "viafb_accel=", 12))
strict_strtoul(this_opt + 12, 0,
(unsigned long *)&viafb_accel);
else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
strict_strtoul(this_opt + 14, 0,
(unsigned long *)&viafb_SAMM_ON);
else if (!strncmp(this_opt, "viafb_active_dev=", 17))
viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
else if (!strncmp(this_opt,
"viafb_display_hardware_layout=", 30))
strict_strtoul(this_opt + 30, 0,
(unsigned long *)&viafb_display_hardware_layout);
else if (!strncmp(this_opt, "viafb_second_size=", 18))
strict_strtoul(this_opt + 18, 0,
(unsigned long *)&viafb_second_size);
else if (!strncmp(this_opt,
"viafb_platform_epia_dvi=", 24))
strict_strtoul(this_opt + 24, 0,
(unsigned long *)&viafb_platform_epia_dvi);
else if (!strncmp(this_opt,
"viafb_device_lcd_dualedge=", 26))
strict_strtoul(this_opt + 26, 0,
(unsigned long *)&viafb_device_lcd_dualedge);
else if (!strncmp(this_opt, "viafb_bus_width=", 16))
strict_strtoul(this_opt + 16, 0,
(unsigned long *)&viafb_bus_width);
else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
strict_strtoul(this_opt + 15, 0,
(unsigned long *)&viafb_lcd_mode);
else if (!strncmp(this_opt, "viafb_video_dev=", 16))
viafb_video_dev = kstrdup(this_opt + 16, GFP_KERNEL);
else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
}
return 0;
}
#endif
static int __init viafb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("viafb", &option))
return -ENODEV;
viafb_setup(option);
#endif
printk(KERN_INFO
"VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
VERSION_MAJOR, VERSION_MINOR);
return via_pci_probe();
}
static void __exit viafb_exit(void)
{
DEBUG_MSG(KERN_INFO "viafb_exit!\n");
via_pci_remove();
}
static struct fb_ops viafb_ops = {
.owner = THIS_MODULE,
.fb_open = viafb_open,
.fb_release = viafb_release,
.fb_check_var = viafb_check_var,
.fb_set_par = viafb_set_par,
.fb_setcolreg = viafb_setcolreg,
.fb_pan_display = viafb_pan_display,
.fb_blank = viafb_blank,
.fb_fillrect = viafb_fillrect,
.fb_copyarea = viafb_copyarea,
.fb_imageblit = viafb_imageblit,
.fb_cursor = viafb_cursor,
.fb_ioctl = viafb_ioctl,
.fb_sync = viafb_sync,
.fb_setcmap = viafb_setcmap,
};
module_init(viafb_init);
module_exit(viafb_exit);
#ifdef MODULE
module_param(viafb_memsize, int, 0);
module_param(viafb_mode, charp, 0);
MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
module_param(viafb_mode1, charp, 0);
MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
module_param(viafb_bpp, int, 0);
MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
module_param(viafb_bpp1, int, 0);
MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
module_param(viafb_refresh, int, 0);
MODULE_PARM_DESC(viafb_refresh,
"Set CRT viafb_refresh rate (default = 60)");
module_param(viafb_refresh1, int, 0);
MODULE_PARM_DESC(viafb_refresh1,
"Set CRT refresh rate (default = 60)");
module_param(viafb_lcd_panel_id, int, 0);
MODULE_PARM_DESC(viafb_lcd_panel_id,
"Set Flat Panel type(Default=1024x768)");
module_param(viafb_lcd_dsp_method, int, 0);
MODULE_PARM_DESC(viafb_lcd_dsp_method,
"Set Flat Panel display scaling method.(Default=Expandsion)");
module_param(viafb_SAMM_ON, int, 0);
MODULE_PARM_DESC(viafb_SAMM_ON,
"Turn on/off flag of SAMM(Default=OFF)");
module_param(viafb_accel, int, 0);
MODULE_PARM_DESC(viafb_accel,
"Set 2D Hardware Acceleration.(Default = OFF)");
module_param(viafb_active_dev, charp, 0);
MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
module_param(viafb_display_hardware_layout, int, 0);
MODULE_PARM_DESC(viafb_display_hardware_layout,
"Display Hardware Layout (LCD Only, DVI Only...,etc)");
module_param(viafb_second_size, int, 0);
MODULE_PARM_DESC(viafb_second_size,
"Set secondary device memory size");
module_param(viafb_dual_fb, int, 0);
MODULE_PARM_DESC(viafb_dual_fb,
"Turn on/off flag of dual framebuffer devices.(Default = OFF)");
module_param(viafb_platform_epia_dvi, int, 0);
MODULE_PARM_DESC(viafb_platform_epia_dvi,
"Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
module_param(viafb_device_lcd_dualedge, int, 0);
MODULE_PARM_DESC(viafb_device_lcd_dualedge,
"Turn on/off flag of dual edge panel.(Default = OFF)");
module_param(viafb_bus_width, int, 0);
MODULE_PARM_DESC(viafb_bus_width,
"Set bus width of panel.(Default = 12)");
module_param(viafb_lcd_mode, int, 0);
MODULE_PARM_DESC(viafb_lcd_mode,
"Set Flat Panel mode(Default=OPENLDI)");
module_param(viafb_video_dev, charp, 0);
MODULE_PARM_DESC(viafb_video_dev, "Specify video devices.");
module_param(viafb_lcd_port, charp, 0);
MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
module_param(viafb_dvi_port, charp, 0);
MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
MODULE_LICENSE("GPL");
#endif
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