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linux/drivers/video/via/viafbdev.c
Florian Tobias Schandinat af29a5b178 viafb: fix accel_flags check_var bug 
viafb: fix accel_flags check_var bug

In check_var we should check and modify the var given and not the
one which is currently active. So this code was obviously wrong.
Probably this was doing no harm because all acceleration functions
also check whether acceleration is possible. (otherwise I would
expect this to lead to a null pointer dereference)

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-07-23 14:46:11 +00:00

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/*
* Copyright 1998-2009 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>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/via-core.h>
#define _MASTER_FILE
#include "global.h"
static char *viafb_name = "Via";
static u32 pseudo_pal[17];
/* video mode */
static char *viafb_mode;
static char *viafb_mode1;
static int viafb_bpp = 32;
static int viafb_bpp1 = 32;
static unsigned int viafb_second_offset;
static int viafb_second_size;
static int viafb_accel = 1;
/* Added for specifying active devices.*/
char *viafb_active_dev;
/*Added for specify lcd output port*/
char *viafb_lcd_port = "";
char *viafb_dvi_port = "";
static void retrieve_device_setting(struct viafb_ioctl_setting
*setting_info);
static int viafb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
static struct fb_ops viafb_ops;
static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
{
var->grayscale = 0;
var->red.msb_right = 0;
var->green.msb_right = 0;
var->blue.msb_right = 0;
var->transp.offset = 0;
var->transp.length = 0;
var->transp.msb_right = 0;
var->nonstd = 0;
switch (depth) {
case 8:
var->bits_per_pixel = 8;
var->red.offset = 0;
var->green.offset = 0;
var->blue.offset = 0;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
break;
case 15:
var->bits_per_pixel = 16;
var->red.offset = 10;
var->green.offset = 5;
var->blue.offset = 0;
var->red.length = 5;
var->green.length = 5;
var->blue.length = 5;
break;
case 16:
var->bits_per_pixel = 16;
var->red.offset = 11;
var->green.offset = 5;
var->blue.offset = 0;
var->red.length = 5;
var->green.length = 6;
var->blue.length = 5;
break;
case 24:
var->bits_per_pixel = 32;
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
break;
case 30:
var->bits_per_pixel = 32;
var->red.offset = 20;
var->green.offset = 10;
var->blue.offset = 0;
var->red.length = 10;
var->green.length = 10;
var->blue.length = 10;
break;
}
}
static void viafb_update_fix(struct fb_info *info)
{
u32 bpp = info->var.bits_per_pixel;
info->fix.visual =
bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
info->fix.line_length = (info->var.xres_virtual * bpp / 8 + 7) & ~7;
}
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->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
fix->visual = FB_VISUAL_TRUECOLOR;
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 int viafb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
int htotal, vtotal, depth;
struct VideoModeTable *vmode_entry;
struct viafb_par *ppar = info->par;
u32 long_refresh, line;
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_entry = viafb_get_mode(var->xres, var->yres);
if (!vmode_entry) {
DEBUG_MSG(KERN_INFO
"viafb: Mode %dx%dx%d not supported!!\n",
var->xres, var->yres, var->bits_per_pixel);
return -EINVAL;
}
depth = fb_get_color_depth(var, &info->fix);
if (!depth)
depth = var->bits_per_pixel;
if (depth < 0 || depth > 32)
return -EINVAL;
else if (!depth)
depth = 24;
else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
depth = 15;
else if (depth == 30)
depth = 30;
else if (depth <= 8)
depth = 8;
else if (depth <= 16)
depth = 16;
else
depth = 24;
viafb_fill_var_color_info(var, depth);
line = (var->xres_virtual * var->bits_per_pixel / 8 + 7) & ~7;
if (line * var->yres_virtual > 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_entry);
if (var->accel_flags & FB_ACCELF_TEXT &&
!ppar->shared->vdev->engine_mmio)
var->accel_flags = 0;
return 0;
}
static int viafb_set_par(struct fb_info *info)
{
struct viafb_par *viapar = info->par;
struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL;
DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
viafb_update_fix(info);
viapar->depth = fb_get_color_depth(&info->var, &info->fix);
viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
viafbinfo->var.bits_per_pixel, viafb_refresh, 0);
vmode_entry = viafb_get_mode(viafbinfo->var.xres, viafbinfo->var.yres);
if (viafb_dual_fb) {
vmode_entry1 = viafb_get_mode(viafbinfo1->var.xres,
viafbinfo1->var.yres);
viafb_update_device_setting(viafbinfo1->var.xres,
viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
viafb_refresh1, 1);
} else 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_entry1 = viafb_get_mode(viafb_second_xres,
viafb_second_yres);
viafb_update_device_setting(viafb_second_xres,
viafb_second_yres, viafb_bpp1, viafb_refresh1, 1);
}
if (vmode_entry) {
if (viafb_dual_fb && viapar->iga_path == IGA2)
viafb_bpp1 = info->var.bits_per_pixel;
else
viafb_bpp = info->var.bits_per_pixel;
if (info->var.accel_flags & FB_ACCELF_TEXT)
info->flags &= ~FBINFO_HWACCEL_DISABLED;
else
info->flags |= FBINFO_HWACCEL_DISABLED;
viafb_setmode(vmode_entry, info->var.bits_per_pixel,
vmode_entry1, viafb_bpp1);
viafb_pan_display(&info->var, info);
}
return 0;
}
/* Set one color register */
static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp, struct fb_info *info)
{
struct viafb_par *viapar = info->par;
u32 r, g, b;
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
if (regno > 255)
return -EINVAL;
if (!viafb_dual_fb || viapar->iga_path == IGA1)
viafb_set_primary_color_register(regno, red >> 8,
green >> 8, blue >> 8);
if (!viafb_dual_fb || viapar->iga_path == IGA2)
viafb_set_secondary_color_register(regno, red >> 8,
green >> 8, blue >> 8);
} else {
if (regno > 15)
return -EINVAL;
r = (red >> (16 - info->var.red.length))
<< info->var.red.offset;
b = (blue >> (16 - info->var.blue.length))
<< info->var.blue.offset;
g = (green >> (16 - info->var.green.length))
<< info->var.green.offset;
((u32 *) info->pseudo_palette)[regno] = r | g | b;
}
return 0;
}
static int viafb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct viafb_par *viapar = info->par;
u32 vram_addr = (var->yoffset * var->xres_virtual + var->xoffset)
* (var->bits_per_pixel / 8) + viapar->vram_addr;
DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
if (!viafb_dual_fb) {
via_set_primary_address(vram_addr);
via_set_secondary_address(vram_addr);
} else if (viapar->iga_path == IGA1)
via_set_primary_address(vram_addr);
else
via_set_secondary_address(vram_addr);
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;
DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
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_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_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 = memdup_user(argp, 256 * sizeof(u32));
if (IS_ERR(viafb_gamma_table))
return PTR_ERR(viafb_gamma_table);
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,
256 * sizeof(u32))) {
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_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)
{
struct viafb_par *viapar = info->par;
struct viafb_shared *shared = viapar->shared;
u32 fg_color;
u8 rop;
if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
cfb_fillrect(info, rect);
return;
}
if (!rect->width || !rect->height)
return;
if (info->fix.visual == FB_VISUAL_TRUECOLOR)
fg_color = ((u32 *)info->pseudo_palette)[rect->color];
else
fg_color = rect->color;
if (rect->rop == ROP_XOR)
rop = 0x5A;
else
rop = 0xF0;
DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
rect->width, rect->height, info->var.bits_per_pixel,
viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
NULL, 0, 0, 0, 0, fg_color, 0, rop))
cfb_fillrect(info, rect);
}
static void viafb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct viafb_par *viapar = info->par;
struct viafb_shared *shared = viapar->shared;
if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
cfb_copyarea(info, area);
return;
}
if (!area->width || !area->height)
return;
DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
area->width, area->height, info->var.bits_per_pixel,
viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
NULL, viapar->vram_addr, info->fix.line_length,
area->sx, area->sy, 0, 0, 0))
cfb_copyarea(info, area);
}
static void viafb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct viafb_par *viapar = info->par;
struct viafb_shared *shared = viapar->shared;
u32 fg_color = 0, bg_color = 0;
u8 op;
if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
(image->depth != 1 && image->depth != viapar->depth)) {
cfb_imageblit(info, image);
return;
}
if (image->depth == 1) {
op = VIA_BITBLT_MONO;
if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
fg_color =
((u32 *)info->pseudo_palette)[image->fg_color];
bg_color =
((u32 *)info->pseudo_palette)[image->bg_color];
} else {
fg_color = image->fg_color;
bg_color = image->bg_color;
}
} else
op = VIA_BITBLT_COLOR;
DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
image->width, image->height, info->var.bits_per_pixel,
viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
(u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
cfb_imageblit(info, image);
}
static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct viafb_par *viapar = info->par;
void __iomem *engine = viapar->shared->vdev->engine_mmio;
u32 temp, xx, yy, bg_color = 0, fg_color = 0,
chip_name = viapar->shared->chip_info.gfx_chip_name;
int i, j = 0, cur_size = 64;
if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
return -ENODEV;
/* LCD ouput does not support hw cursors (at least on VN896) */
if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
viafb_LCD_ON)
return -ENODEV;
viafb_show_hw_cursor(info, HW_Cursor_OFF);
if (cursor->set & FB_CUR_SETHOT) {
temp = (cursor->hot.x << 16) + cursor->hot.y;
writel(temp, engine + VIA_REG_CURSOR_ORG);
}
if (cursor->set & FB_CUR_SETPOS) {
yy = cursor->image.dy - info->var.yoffset;
xx = cursor->image.dx - info->var.xoffset;
temp = yy & 0xFFFF;
temp |= (xx << 16);
writel(temp, engine + VIA_REG_CURSOR_POS);
}
if (cursor->image.width <= 32 && cursor->image.height <= 32)
cur_size = 32;
else if (cursor->image.width <= 64 && cursor->image.height <= 64)
cur_size = 64;
else {
printk(KERN_WARNING "viafb_cursor: The cursor is too large "
"%dx%d", cursor->image.width, cursor->image.height);
return -ENXIO;
}
if (cursor->set & FB_CUR_SETSIZE) {
temp = readl(engine + VIA_REG_CURSOR_MODE);
if (cur_size == 32)
temp |= 0x2;
else
temp &= ~0x2;
writel(temp, engine + VIA_REG_CURSOR_MODE);
}
if (cursor->set & FB_CUR_SETCMAP) {
fg_color = cursor->image.fg_color;
bg_color = cursor->image.bg_color;
if (chip_name == UNICHROME_CX700 ||
chip_name == UNICHROME_VX800 ||
chip_name == UNICHROME_VX855) {
fg_color =
((info->cmap.red[fg_color] & 0xFFC0) << 14) |
((info->cmap.green[fg_color] & 0xFFC0) << 4) |
((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
bg_color =
((info->cmap.red[bg_color] & 0xFFC0) << 14) |
((info->cmap.green[bg_color] & 0xFFC0) << 4) |
((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
} else {
fg_color =
((info->cmap.red[fg_color] & 0xFF00) << 8) |
(info->cmap.green[fg_color] & 0xFF00) |
((info->cmap.blue[fg_color] & 0xFF00) >> 8);
bg_color =
((info->cmap.red[bg_color] & 0xFF00) << 8) |
(info->cmap.green[bg_color] & 0xFF00) |
((info->cmap.blue[bg_color] & 0xFF00) >> 8);
}
writel(bg_color, engine + VIA_REG_CURSOR_BG);
writel(fg_color, engine + VIA_REG_CURSOR_FG);
}
if (cursor->set & FB_CUR_SETSHAPE) {
struct {
u8 data[CURSOR_SIZE];
u32 bak[CURSOR_SIZE / 4];
} *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
int size = ((cursor->image.width + 7) >> 3) *
cursor->image.height;
if (!cr_data)
return -ENOMEM;
if (cur_size == 32) {
for (i = 0; i < (CURSOR_SIZE / 4); i++) {
cr_data->bak[i] = 0x0;
cr_data->bak[i + 1] = 0xFFFFFFFF;
i += 1;
}
} else {
for (i = 0; i < (CURSOR_SIZE / 4); 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 (cursor->rop) {
case ROP_XOR:
for (i = 0; i < size; i++)
cr_data->data[i] = cursor->mask[i];
break;
case ROP_COPY:
for (i = 0; i < size; i++)
cr_data->data[i] = cursor->mask[i];
break;
default:
break;
}
if (cur_size == 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 {
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_toio(viafbinfo->screen_base + viapar->shared->
cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
kfree(cr_data);
}
if (cursor->enable)
viafb_show_hw_cursor(info, HW_Cursor_ON);
return 0;
}
static int viafb_sync(struct fb_info *info)
{
if (!(info->flags & FBINFO_HWACCEL_DISABLED))
viafb_wait_engine_idle(info);
return 0;
}
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 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;
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 int 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 (!viafb_active_dev) {
viafb_CRT_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
/* CRT+DVI */
viafb_CRT_ON = STATE_ON;
viafb_DVI_ON = STATE_ON;
viafb_primary_dev = CRT_Device;
} else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
/* DVI+CRT */
viafb_CRT_ON = STATE_ON;
viafb_DVI_ON = STATE_ON;
viafb_primary_dev = DVI_Device;
} else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
/* CRT+LCD */
viafb_CRT_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = CRT_Device;
} else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
/* LCD+CRT */
viafb_CRT_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
/* DVI+LCD */
viafb_DVI_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = DVI_Device;
} else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
/* LCD+DVI */
viafb_DVI_ON = STATE_ON;
viafb_LCD_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
viafb_LCD_ON = STATE_ON;
viafb_LCD2_ON = STATE_ON;
viafb_primary_dev = LCD_Device;
} else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
viafb_LCD_ON = STATE_ON;
viafb_LCD2_ON = STATE_ON;
viafb_primary_dev = LCD2_Device;
} else if (!strcmp(viafb_active_dev, "CRT")) {
/* CRT only */
viafb_CRT_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else if (!strcmp(viafb_active_dev, "DVI")) {
/* DVI only */
viafb_DVI_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else if (!strcmp(viafb_active_dev, "LCD")) {
/* LCD only */
viafb_LCD_ON = STATE_ON;
viafb_SAMM_ON = STATE_OFF;
} else
return -EINVAL;
return 0;
}
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);
}
#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
/*
* 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_show(struct seq_file *m, void *v)
{
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;
seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
return 0;
}
static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, viafb_dvp0_proc_show, NULL);
}
static ssize_t viafb_dvp0_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
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 const struct file_operations viafb_dvp0_proc_fops = {
.owner = THIS_MODULE,
.open = viafb_dvp0_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = viafb_dvp0_proc_write,
};
static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
{
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;
seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
return 0;
}
static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, viafb_dvp1_proc_show, NULL);
}
static ssize_t viafb_dvp1_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
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 const struct file_operations viafb_dvp1_proc_fops = {
.owner = THIS_MODULE,
.open = viafb_dvp1_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = viafb_dvp1_proc_write,
};
static int viafb_dfph_proc_show(struct seq_file *m, void *v)
{
u8 dfp_high = 0;
dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
seq_printf(m, "%x\n", dfp_high);
return 0;
}
static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, viafb_dfph_proc_show, NULL);
}
static ssize_t viafb_dfph_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
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 const struct file_operations viafb_dfph_proc_fops = {
.owner = THIS_MODULE,
.open = viafb_dfph_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = viafb_dfph_proc_write,
};
static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
{
u8 dfp_low = 0;
dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
seq_printf(m, "%x\n", dfp_low);
return 0;
}
static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, viafb_dfpl_proc_show, NULL);
}
static ssize_t viafb_dfpl_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
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 const struct file_operations viafb_dfpl_proc_fops = {
.owner = THIS_MODULE,
.open = viafb_dfpl_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = viafb_dfpl_proc_write,
};
static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
{
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;
seq_printf(m, "%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;
seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
break;
default:
break;
}
return 0;
}
static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, viafb_vt1636_proc_show, NULL);
}
static ssize_t viafb_vt1636_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
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 const struct file_operations viafb_vt1636_proc_fops = {
.owner = THIS_MODULE,
.open = viafb_vt1636_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = viafb_vt1636_proc_write,
};
static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
{
*viafb_entry = proc_mkdir("viafb", NULL);
if (*viafb_entry) {
proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
lvds_chip_name || VT1636_LVDS ==
viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
}
}
}
static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
{
struct chip_information *chip_info = &viaparinfo->shared->chip_info;
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);
if (chip_info->lvds_chip_info.lvds_chip_name == VT1636_LVDS
|| chip_info->lvds_chip_info2.lvds_chip_name == VT1636_LVDS)
remove_proc_entry("vt1636", viafb_entry);
remove_proc_entry("viafb", NULL);
}
#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
static int parse_mode(const char *str, u32 *xres, u32 *yres)
{
char *ptr;
if (!str) {
*xres = 640;
*yres = 480;
return 0;
}
*xres = simple_strtoul(str, &ptr, 10);
if (ptr[0] != 'x')
return -EINVAL;
*yres = simple_strtoul(&ptr[1], &ptr, 10);
if (ptr[0])
return -EINVAL;
return 0;
}
int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
{
u32 default_xres, default_yres;
struct VideoModeTable *vmode_entry;
struct fb_var_screeninfo default_var;
int rc;
u32 viafb_par_length;
DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
memset(&default_var, 0, sizeof(default_var));
viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
/* Allocate fb_info and ***_par here, also including some other needed
* variables
*/
viafbinfo = framebuffer_alloc(viafb_par_length +
ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
&vdev->pdev->dev);
if (!viafbinfo) {
printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
return -ENOMEM;
}
viaparinfo = (struct viafb_par *)viafbinfo->par;
viaparinfo->shared = viafbinfo->par + viafb_par_length;
viaparinfo->shared->vdev = vdev;
viaparinfo->vram_addr = 0;
viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
viaparinfo->lvds_setting_info2 =
&viaparinfo->shared->lvds_setting_info2;
viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
viaparinfo->chip_info = &viaparinfo->shared->chip_info;
if (viafb_dual_fb)
viafb_SAMM_ON = 1;
parse_lcd_port();
parse_dvi_port();
viafb_init_chip_info(vdev->chip_type);
/*
* The framebuffer will have been successfully mapped by
* the core (or we'd not be here), but we still need to
* set up our own accounting.
*/
viaparinfo->fbmem = vdev->fbmem_start;
viaparinfo->memsize = vdev->fbmem_len;
viaparinfo->fbmem_free = viaparinfo->memsize;
viaparinfo->fbmem_used = 0;
viafbinfo->screen_base = vdev->fbmem;
viafbinfo->fix.mmio_start = vdev->engine_start;
viafbinfo->fix.mmio_len = vdev->engine_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_engine(viafbinfo)) {
viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
default_var.accel_flags = FB_ACCELF_TEXT;
} else {
viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
default_var.accel_flags = 0;
}
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;
}
parse_mode(viafb_mode, &default_xres, &default_yres);
vmode_entry = viafb_get_mode(default_xres, default_yres);
if (viafb_SAMM_ON == 1) {
parse_mode(viafb_mode1, &viafb_second_xres,
&viafb_second_yres);
viafb_second_virtual_xres = viafb_second_xres;
viafb_second_virtual_yres = viafb_second_yres;
}
default_var.xres = default_xres;
default_var.yres = default_yres;
default_var.xres_virtual = default_xres;
default_var.yres_virtual = default_yres;
default_var.bits_per_pixel = viafb_bpp;
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;
viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
viafbinfo->var = default_var;
if (viafb_dual_fb) {
viafbinfo1 = framebuffer_alloc(viafb_par_length,
&vdev->pdev->dev);
if (!viafbinfo1) {
printk(KERN_ERR
"allocate the second framebuffer struct error\n");
rc = -ENOMEM;
goto out_fb_release;
}
viaparinfo1 = viafbinfo1->par;
memcpy(viaparinfo1, viaparinfo, viafb_par_length);
viaparinfo1->vram_addr = viafb_second_offset;
viaparinfo1->memsize = viaparinfo->memsize -
viafb_second_offset;
viaparinfo->memsize = 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;
viaparinfo->iga_path = IGA1;
viaparinfo1->iga_path = IGA2;
memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
viafbinfo1->par = viaparinfo1;
viafbinfo1->screen_base = viafbinfo->screen_base +
viafb_second_offset;
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;
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_fix(viafbinfo1);
viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
&viafbinfo1->fix);
}
viafb_check_var(&viafbinfo->var, viafbinfo);
viafb_update_fix(viafbinfo);
viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
&viafbinfo->fix);
default_var.activate = FB_ACTIVATE_NOW;
rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
if (rc)
goto out_fb1_release;
if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
rc = register_framebuffer(viafbinfo1);
if (rc)
goto out_dealloc_cmap;
}
rc = register_framebuffer(viafbinfo);
if (rc)
goto out_fb1_unreg_lcd_cle266;
if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
|| (viaparinfo->chip_info->gfx_chip_name !=
UNICHROME_CLE266))) {
rc = register_framebuffer(viafbinfo1);
if (rc)
goto out_fb_unreg;
}
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);
#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
viafb_init_proc(&viaparinfo->shared->proc_entry);
#endif
viafb_init_dac(IGA2);
return 0;
out_fb_unreg:
unregister_framebuffer(viafbinfo);
out_fb1_unreg_lcd_cle266:
if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
unregister_framebuffer(viafbinfo1);
out_dealloc_cmap:
fb_dealloc_cmap(&viafbinfo->cmap);
out_fb1_release:
if (viafbinfo1)
framebuffer_release(viafbinfo1);
out_fb_release:
framebuffer_release(viafbinfo);
return rc;
}
void __devexit via_fb_pci_remove(struct pci_dev *pdev)
{
DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
fb_dealloc_cmap(&viafbinfo->cmap);
unregister_framebuffer(viafbinfo);
if (viafb_dual_fb)
unregister_framebuffer(viafbinfo1);
#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
viafb_remove_proc(viaparinfo->shared->proc_entry);
#endif
framebuffer_release(viafbinfo);
if (viafb_dual_fb)
framebuffer_release(viafbinfo1);
}
#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_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
/*
* These are called out of via-core for now.
*/
int __init viafb_init(void)
{
u32 dummy;
#ifndef MODULE
char *option = NULL;
if (fb_get_options("viafb", &option))
return -ENODEV;
viafb_setup(option);
#endif
if (parse_mode(viafb_mode, &dummy, &dummy)
|| parse_mode(viafb_mode1, &dummy, &dummy)
|| viafb_bpp < 0 || viafb_bpp > 32
|| viafb_bpp1 < 0 || viafb_bpp1 > 32
|| parse_active_dev())
return -EINVAL;
printk(KERN_INFO
"VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
VERSION_MAJOR, VERSION_MINOR);
return 0;
}
void __exit viafb_exit(void)
{
DEBUG_MSG(KERN_INFO "viafb_exit!\n");
}
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,
};
#ifdef MODULE
module_param(viafb_mode, charp, S_IRUSR);
MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
module_param(viafb_mode1, charp, S_IRUSR);
MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
module_param(viafb_bpp, int, S_IRUSR);
MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
module_param(viafb_bpp1, int, S_IRUSR);
MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
module_param(viafb_refresh, int, S_IRUSR);
MODULE_PARM_DESC(viafb_refresh,
"Set CRT viafb_refresh rate (default = 60)");
module_param(viafb_refresh1, int, S_IRUSR);
MODULE_PARM_DESC(viafb_refresh1,
"Set CRT refresh rate (default = 60)");
module_param(viafb_lcd_panel_id, int, S_IRUSR);
MODULE_PARM_DESC(viafb_lcd_panel_id,
"Set Flat Panel type(Default=1024x768)");
module_param(viafb_lcd_dsp_method, int, S_IRUSR);
MODULE_PARM_DESC(viafb_lcd_dsp_method,
"Set Flat Panel display scaling method.(Default=Expandsion)");
module_param(viafb_SAMM_ON, int, S_IRUSR);
MODULE_PARM_DESC(viafb_SAMM_ON,
"Turn on/off flag of SAMM(Default=OFF)");
module_param(viafb_accel, int, S_IRUSR);
MODULE_PARM_DESC(viafb_accel,
"Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
module_param(viafb_active_dev, charp, S_IRUSR);
MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
module_param(viafb_display_hardware_layout, int, S_IRUSR);
MODULE_PARM_DESC(viafb_display_hardware_layout,
"Display Hardware Layout (LCD Only, DVI Only...,etc)");
module_param(viafb_second_size, int, S_IRUSR);
MODULE_PARM_DESC(viafb_second_size,
"Set secondary device memory size");
module_param(viafb_dual_fb, int, S_IRUSR);
MODULE_PARM_DESC(viafb_dual_fb,
"Turn on/off flag of dual framebuffer devices.(Default = OFF)");
module_param(viafb_platform_epia_dvi, int, S_IRUSR);
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, S_IRUSR);
MODULE_PARM_DESC(viafb_device_lcd_dualedge,
"Turn on/off flag of dual edge panel.(Default = OFF)");
module_param(viafb_bus_width, int, S_IRUSR);
MODULE_PARM_DESC(viafb_bus_width,
"Set bus width of panel.(Default = 12)");
module_param(viafb_lcd_mode, int, S_IRUSR);
MODULE_PARM_DESC(viafb_lcd_mode,
"Set Flat Panel mode(Default=OPENLDI)");
module_param(viafb_lcd_port, charp, S_IRUSR);
MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
module_param(viafb_dvi_port, charp, S_IRUSR);
MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
MODULE_LICENSE("GPL");
#endif
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