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linux/drivers/video/via/viafbdev.c
Alexey Dobriyan 99b7623380 proc 2/2: remove struct proc_dir_entry::owner 
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy
as correctly noted at bug #12454. Someone can lookup entry with NULL
->owner, thus not pinning enything, and release it later resulting
in module refcount underflow.

We can keep ->owner and supply it at registration time like ->proc_fops
and ->data.

But this leaves ->owner as easy-manipulative field (just one C assignment)
and somebody will forget to unpin previous/pin current module when
switching ->owner. ->proc_fops is declared as "const" which should give
some thoughts.

->read_proc/->write_proc were just fixed to not require ->owner for
protection.

rmmod'ed directories will be empty and return "." and ".." -- no harm.
And directories with tricky enough readdir and lookup shouldn't be modular.
We definitely don't want such modular code.

Removing ->owner will also make PDE smaller.

So, let's nuke it.

Kudos to Jeff Layton for reminding about this, let's say, oversight.

http://bugzilla.kernel.org/show_bug.cgi?id=12454

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-03-31 01:14:44 +04:00

2584 lines
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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";
static int viafb_resMode = VIA_RES_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, "480x640"},
{640, 480, VIA_RES_640X480, "640x480"},
{800, 480, VIA_RES_800X480, "800x480"},
{800, 600, VIA_RES_800X600, "800x600"},
{1024, 768, VIA_RES_1024X768, "1024x768"},
{1152, 864, VIA_RES_1152X864, "1152x864"},
{1280, 1024, VIA_RES_1280X1024, "1280x1024"},
{1600, 1200, VIA_RES_1600X1200, "1600x1200"},
{1440, 1050, VIA_RES_1440X1050, "1440x1050"},
{1280, 768, VIA_RES_1280X768, "1280x768"},
{1280, 800, VIA_RES_1280X800, "1280x800"},
{1280, 960, VIA_RES_1280X960, "1280x960"},
{1920, 1440, VIA_RES_1920X1440, "1920x1440"},
{848, 480, VIA_RES_848X480, "848x480"},
{1400, 1050, VIA_RES_1400X1050, "1400x1050"},
{720, 480, VIA_RES_720X480, "720x480"},
{720, 576, VIA_RES_720X576, "720x576"},
{1024, 512, VIA_RES_1024X512, "1024x512"},
{1024, 576, VIA_RES_1024X576, "1024x576"},
{1024, 600, VIA_RES_1024X600, "1024x600"},
{1280, 720, VIA_RES_1280X720, "1280x720"},
{1920, 1080, VIA_RES_1920X1080, "1920x1080"},
{1366, 768, VIA_RES_1368X768, "1368x768"},
{1680, 1050, VIA_RES_1680X1050, "1680x1050"},
{960, 600, VIA_RES_960X600, "960x600"},
{1000, 600, VIA_RES_1000X600, "1000x600"},
{1024, 576, VIA_RES_1024X576, "1024x576"},
{1024, 600, VIA_RES_1024X600, "1024x600"},
{1088, 612, VIA_RES_1088X612, "1088x612"},
{1152, 720, VIA_RES_1152X720, "1152x720"},
{1200, 720, VIA_RES_1200X720, "1200x720"},
{1280, 600, VIA_RES_1280X600, "1280x600"},
{1360, 768, VIA_RES_1360X768, "1360x768"},
{1440, 900, VIA_RES_1440X900, "1440x900"},
{1600, 900, VIA_RES_1600X900, "1600x900"},
{1600, 1024, VIA_RES_1600X1024, "1600x1024"},
{1792, 1344, VIA_RES_1792X1344, "1792x1344"},
{1856, 1392, VIA_RES_1856X1392, "1856x1392"},
{1920, 1200, VIA_RES_1920X1200, "1920x1200"},
{2048, 1536, VIA_RES_2048X1536, "2048x1536"},
{0, 0, VIA_RES_INVALID, "640x480"}
};
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, 0);
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, 0);
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, 1);
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, int flag)
{
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;
viafb_resMode = viafb_modentry[i].mode_index;
if (flag)
viafb_mode1 = viafb_modentry[i].mode_res;
else
viafb_mode = viafb_modentry[i].mode_res;
return viafb_resMode;
}
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 int 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, (unsigned long *)&default_xres);
strict_strtoul(tmpm, 0, (unsigned long *)&default_yres);
vmode_index = viafb_get_mode_index(default_xres, default_yres, 0);
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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