[Linux-fbdev-devel] [PATCH 4/9] viafb: VIA Frame Buffer Device Driver

From: JosephChan
Date: Wed May 07 2008 - 07:11:06 EST

Signed-off-by: Joseph Chan <josephchan@xxxxxxxxxx>

diff -Nur a/drivers/video/via/ioctl.h b/drivers/video/via/ioctl.h
--- a/drivers/video/via/ioctl.h 1969-12-31 19:00:00.000000000 -0500
+++ b/drivers/video/via/ioctl.h 2008-04-29 05:31:51.000000000 -0400
@@ -0,0 +1,212 @@
+/*
+ * 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.
+ */
+
+#ifndef __IOCTL_H__
+#define __IOCTL_H__
+
+#ifndef __user
+#define __user
+#endif
+
+/* VIAFB IOCTL definition */
+#define VIAFB_GET_INFO_SIZE 0x56494101 /* 'VIA\01' */
+#define VIAFB_GET_INFO 0x56494102 /* 'VIA\02' */
+#define VIAFB_HOTPLUG 0x56494103 /* 'VIA\03' */
+#define VIAFB_SET_HOTPLUG_FLAG 0x56494104 /* 'VIA\04' */
+#define VIAFB_GET_RESOLUTION 0x56494105 /* 'VIA\05' */
+#define VIAFB_GET_SAMM_INFO 0x56494107 /* 'VIA\07' */
+#define VIAFB_TURN_ON_OUTPUT_DEVICE 0x56494108 /* 'VIA\08' */
+#define VIAFB_TURN_OFF_OUTPUT_DEVICE 0x56494109 /* 'VIA\09' */
+#define VIAFB_SET_DEVICE 0x5649410A
+#define VIAFB_GET_DEVICE 0x5649410B
+#define VIAFB_GET_DRIVER_VERSION 0x56494112 /* 'VIA\12' */
+#define VIAFB_GET_CHIP_INFO 0x56494113 /* 'VIA\13' */
+#define VIAFB_SET_DEVICE_INFO 0x56494114
+#define VIAFB_GET_DEVICE_INFO 0x56494115
+
+#define VIAFB_GET_DEVICE_SUPPORT 0x56494118
+#define VIAFB_GET_DEVICE_CONNECT 0x56494119
+#define VIAFB_GET_PANEL_SUPPORT_EXPAND 0x5649411A
+#define VIAFB_GET_DRIVER_NAME 0x56494122
+#define VIAFB_GET_DEVICE_SUPPORT_STATE 0x56494123
+#define VIAFB_GET_GAMMA_LUT 0x56494124
+#define VIAFB_SET_GAMMA_LUT 0x56494125
+#define VIAFB_GET_GAMMA_SUPPORT_STATE 0x56494126
+#define VIAFB_SET_VIDEO_DEVICE 0x56494127
+#define VIAFB_GET_VIDEO_DEVICE 0x56494128
+#define VIAFB_SET_SECOND_MODE 0x56494129
+#define VIAFB_SYNC_SURFACE 0x56494130
+#define VIAFB_GET_DRIVER_CAPS 0x56494131
+#define VIAFB_GET_IGA_SCALING_INFO 0x56494132
+#define VIAFB_GET_PANEL_MAX_SIZE 0x56494133
+#define VIAFB_GET_PANEL_MAX_POSITION 0x56494134
+#define VIAFB_SET_PANEL_SIZE 0x56494135
+#define VIAFB_SET_PANEL_POSITION 0x56494136
+#define VIAFB_GET_PANEL_POSITION 0x56494137
+#define VIAFB_GET_PANEL_SIZE 0x56494138
+
+#define None_Device 0x00
+#define CRT_Device 0x01
+#define LCD_Device 0x02
+#define DVI_Device 0x08
+#define CRT2_Device 0x10
+#define LCD2_Device 0x40
+
+#define OP_LCD_CENTERING 0x01
+#define OP_LCD_PANEL_ID 0x02
+#define OP_LCD_MODE 0x03
+
+/*SAMM operation flag*/
+#define OP_SAMM 0x80
+
+#define LCD_PANEL_ID_MAXIMUM 22
+
+#define STATE_ON 0x1
+#define STATE_OFF 0x0
+#define STATE_DEFAULT 0xFFFF
+
+#define MAX_ACTIVE_DEV_NUM 2
+
+struct device_t {
+ unsigned short crt:1;
+ unsigned short dvi:1;
+ unsigned short lcd:1;
+ unsigned short samm:1;
+ unsigned short primary_dev;
+
+ unsigned short lcd_dsp_cent:1;
+ unsigned char lcd_panel_id;
+ unsigned char lcd_mode:1;
+
+ unsigned short xres, yres;
+ unsigned short xres1, yres1;
+ unsigned short refresh;
+ unsigned short bpp;
+ unsigned short refresh1;
+ unsigned short bpp1;
+ unsigned short sequence;
+
+ unsigned short epia_dvi:1;
+ unsigned short lcd_dual_edge:1;
+ unsigned short bus_width;
+ unsigned short lcd2:1;
+};
+
+struct viafb_ioctl_info {
+ u32 viafb_id; /* for identifying viafb */
+#define VIAID 0x56494146 /* Identify myself with 'VIAF' */
+ u16 vendor_id;
+ u16 device_id;
+ u8 version;
+ u8 revision;
+ u8 reserved[246]; /* for future use */
+};
+
+struct viafb_ioctl_mode {
+ u32 xres;
+ u32 yres;
+ u32 refresh;
+ u32 bpp;
+ u32 xres_sec;
+ u32 yres_sec;
+ u32 virtual_xres_sec;
+ u32 virtual_yres_sec;
+ u32 refresh_sec;
+ u32 bpp_sec;
+};
+struct viafb_ioctl_samm {
+ u32 samm_status;
+ u32 size_prim;
+ u32 size_sec;
+ u32 mem_base;
+ u32 offset_sec;
+};
+
+struct viafb_driver_version {
+ int iMajorNum;
+ int iKernelNum;
+ int iOSNum;
+ int iMinorNum;
+};
+
+struct viafb_ioctl_lcd_attribute {
+ unsigned int panel_id;
+ unsigned int display_center;
+ unsigned int lcd_mode;
+};
+
+struct viafb_ioctl_setting {
+ /* Enable or disable active devices */
+ unsigned short device_flag;
+ /* Indicate which device should be turn on or turn off. */
+ unsigned short device_status;
+ unsigned int reserved;
+ /* Indicate which LCD's attribute can be changed. */
+ unsigned short lcd_operation_flag;
+ /* 1: SAMM ON 0: SAMM OFF */
+ unsigned short samm_status;
+ /* horizontal resolution of first device */
+ unsigned short first_dev_hor_res;
+ /* vertical resolution of first device */
+ unsigned short first_dev_ver_res;
+ /* horizontal resolution of second device */
+ unsigned short second_dev_hor_res;
+ /* vertical resolution of second device */
+ unsigned short second_dev_ver_res;
+ /* refresh rate of first device */
+ unsigned short first_dev_refresh;
+ /* bpp of first device */
+ unsigned short first_dev_bpp;
+ /* refresh rate of second device */
+ unsigned short second_dev_refresh;
+ /* bpp of second device */
+ unsigned short second_dev_bpp;
+ /* Indicate which device are primary display device. */
+ unsigned int primary_device;
+ /* Indicate which device will show video. only valid in duoview mode */
+ unsigned int video_device_status;
+ unsigned int struct_reserved[34];
+ struct viafb_ioctl_lcd_attribute lcd_attributes;
+};
+
+struct _UTFunctionCaps {
+ unsigned int dw3DScalingState;
+ unsigned int reserved[31];
+};
+
+struct _POSITIONVALUE {
+ unsigned int dwX;
+ unsigned int dwY;
+};
+
+struct _panel_size_pos_info {
+ unsigned int device_type;
+ int x;
+ int y;
+};
+
+extern int LCD_ON;
+extern int DVI_ON;
+
+int ioctl_get_viafb_info(u_long arg);
+int ioctl_hotplug(int hres, int vres, int bpp);
+
+#endif /* __IOCTL_H__ */
diff -Nur a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
--- a/drivers/video/via/lcd.c 1969-12-31 19:00:00.000000000 -0500
+++ b/drivers/video/via/lcd.c 2008-05-04 07:13:03.000000000 -0400
@@ -0,0 +1,1741 @@
+/*
+ * 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 "global.h"
+#include "lcdtbl.h"
+
+struct iga2_shadow_crtc_timing iga2_shadow_crtc_reg = {
+ /* IGA2 Shadow Horizontal Total */
+ {IGA2_SHADOW_HOR_TOTAL_REG_NUM, {{CR6D, 0, 7}, {CR71, 3, 3} } },
+ /* IGA2 Shadow Horizontal Blank End */
+ {IGA2_SHADOW_HOR_BLANK_END_REG_NUM, {{CR6E, 0, 7} } },
+ /* IGA2 Shadow Vertical Total */
+ {IGA2_SHADOW_VER_TOTAL_REG_NUM, {{CR6F, 0, 7}, {CR71, 0, 2} } },
+ /* IGA2 Shadow Vertical Addressable Video */
+ {IGA2_SHADOW_VER_ADDR_REG_NUM, {{CR70, 0, 7}, {CR71, 4, 6} } },
+ /* IGA2 Shadow Vertical Blank Start */
+ {IGA2_SHADOW_VER_BLANK_START_REG_NUM,
+ {{CR72, 0, 7}, {CR74, 4, 6} } },
+ /* IGA2 Shadow Vertical Blank End */
+ {IGA2_SHADOW_VER_BLANK_END_REG_NUM, {{CR73, 0, 7}, {CR74, 0, 2} } },
+ /* IGA2 Shadow Vertical Sync Start */
+ {IGA2_SHADOW_VER_SYNC_START_REG_NUM, {{CR75, 0, 7}, {CR76, 4, 6} } },
+ /* IGA2 Shadow Vertical Sync End */
+ {IGA2_SHADOW_VER_SYNC_END_REG_NUM, {{CR76, 0, 3} } }
+};
+
+struct _lcd_scaling_factor lcd_scaling_factor = {
+ /* LCD Horizontal Scaling Factor Register */
+ {LCD_HOR_SCALING_FACTOR_REG_NUM,
+ {{CR9F, 0, 1}, {CR77, 0, 7}, {CR79, 4, 5} } },
+ /* LCD Vertical Scaling Factor Register */
+ {LCD_VER_SCALING_FACTOR_REG_NUM,
+ {{CR79, 3, 3}, {CR78, 0, 7}, {CR79, 6, 7} } }
+};
+struct _lcd_scaling_factor lcd_scaling_factor_CLE = {
+ /* LCD Horizontal Scaling Factor Register */
+ {LCD_HOR_SCALING_FACTOR_REG_NUM_CLE, {{CR77, 0, 7}, {CR79, 4, 5} } },
+ /* LCD Vertical Scaling Factor Register */
+ {LCD_VER_SCALING_FACTOR_REG_NUM_CLE, {{CR78, 0, 7}, {CR79, 6, 7} } }
+};
+
+int check_lvds_chip(int device_id_subaddr, int device_id)
+{
+ if (lvds_register_read(device_id_subaddr) == device_id)
+ return (OK);
+ else
+ return (FAIL);
+}
+
+void init_lcd_size(void)
+{
+ DEBUG_MSG(KERN_INFO "init_lcd_size()\n");
+ DEBUG_MSG(KERN_INFO "lvds_setting_info.get_lcd_size_method %d\n",
+ lvds_setting_info.get_lcd_size_method);
+
+ switch (lvds_setting_info.get_lcd_size_method) {
+ case GET_LCD_SIZE_BY_SYSTEM_BIOS:
+ break;
+ case GET_LCD_SZIE_BY_HW_STRAPPING:
+ break;
+ case GET_LCD_SIZE_BY_VGA_BIOS:
+ DEBUG_MSG(KERN_INFO "Get LCD Size method by VGA BIOS !!\n");
+ lvds_setting_info.lcd_panel_size =
+ fp_id_to_vindex(lcd_panel_id);
+ DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n",
+ lvds_setting_info.lcd_panel_id);
+ DEBUG_MSG(KERN_INFO "LCD Panel Size = %d\n",
+ lvds_setting_info.lcd_panel_size);
+ break;
+ case GET_LCD_SIZE_BY_USER_SETTING:
+ DEBUG_MSG(KERN_INFO "Get LCD Size method by user setting !!\n");
+ lvds_setting_info.lcd_panel_size =
+ fp_id_to_vindex(lcd_panel_id);
+ DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n",
+ lvds_setting_info.lcd_panel_id);
+ DEBUG_MSG(KERN_INFO "LCD Panel Size = %d\n",
+ lvds_setting_info.lcd_panel_size);
+ break;
+ default:
+ DEBUG_MSG(KERN_INFO "init_lcd_size fail\n");
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID1_800X600;
+ lvds_setting_info.lcd_panel_size =
+ fp_id_to_vindex(LCD_PANEL_ID1_800X600);
+ }
+ lvds_setting_info2.lcd_panel_id = lvds_setting_info.lcd_panel_id;
+ lvds_setting_info2.lcd_panel_size = lvds_setting_info.lcd_panel_size;
+ lvds_setting_info2.lcd_panel_hres = lvds_setting_info.lcd_panel_hres;
+ lvds_setting_info2.lcd_panel_vres = lvds_setting_info.lcd_panel_vres;
+ lvds_setting_info2.device_lcd_dualedge =
+ lvds_setting_info.device_lcd_dualedge;
+ lvds_setting_info2.LCDDithering = lvds_setting_info.LCDDithering;
+}
+
+bool lvds_identify_integratedlvds(void)
+{
+ if (display_hardware_layout == HW_LAYOUT_LCD_EXTERNAL_LCD2) {
+ /* Two dual channel LCD (Internal LVDS + External LVDS): */
+ /* If we have an external LVDS, such as VT1636, we should
+ have its chip ID already. */
+ if (chip_info.lvds_chip_info.lvds_chip_name) {
+ chip_info.lvds_chip_info2.lvds_chip_name =
+ INTEGRATED_LVDS;
+ DEBUG_MSG(KERN_INFO "Support two dual channel LVDS!\
+ (Internal LVDS + External LVDS)\n");
+ } else {
+ chip_info.lvds_chip_info.lvds_chip_name =
+ INTEGRATED_LVDS;
+ DEBUG_MSG(KERN_INFO "Not found external LVDS,\
+ so can't support two dual channel LVDS!\n");
+ }
+ } else if (display_hardware_layout == HW_LAYOUT_LCD1_LCD2) {
+ /* Two single channel LCD (Internal LVDS + Internal LVDS): */
+ chip_info.lvds_chip_info.lvds_chip_name = INTEGRATED_LVDS;
+ chip_info.lvds_chip_info2.lvds_chip_name = INTEGRATED_LVDS;
+ DEBUG_MSG(KERN_INFO "Support two single channel LVDS!\
+ (Internal LVDS + Internal LVDS)\n");
+ } else if (display_hardware_layout != HW_LAYOUT_DVI_ONLY) {
+ /* If we have found external LVDS, just use it,
+ otherwise, we will use internal LVDS as default. */
+ if (!chip_info.lvds_chip_info.lvds_chip_name) {
+ chip_info.lvds_chip_info.lvds_chip_name =
+ INTEGRATED_LVDS;
+ DEBUG_MSG(KERN_INFO "Found Integrated LVDS!\n");
+ }
+ } else {
+ chip_info.lvds_chip_info.lvds_chip_name = NON_LVDS_TRANSMITTER;
+ DEBUG_MSG(KERN_INFO "Do not support LVDS!\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+int lvds_trasmitter_identify(void)
+{
+ u8 tmp;
+ tmp = chip_info.chip_on_slot;
+ chip_info.chip_on_slot = PORT_ON_AMR;
+ if (lvds_identify_vt1636()) {
+ chip_info.lvds_chip_info.i2c_port = I2CPORTINDEX;
+ DEBUG_MSG(KERN_INFO
+ "Found VIA VT1636 LVDS on port i2c 0x31 \n");
+ } else {
+ chip_info.chip_on_slot = PORT_ON_AGP;
+ if (lvds_identify_vt1636()) {
+ chip_info.lvds_chip_info.i2c_port = GPIOPORTINDEX;
+ DEBUG_MSG(KERN_INFO
+ "Found VIA VT1636 LVDS on port gpio 0x2c \n");
+ }
+ }
+ chip_info.chip_on_slot = tmp;
+
+ if (chip_info.gfx_chip_name == UNICHROME_CX700)
+ lvds_identify_integratedlvds();
+
+ if (chip_info.lvds_chip_info.lvds_chip_name)
+ return TRUE;
+ /* Check for VT1631: */
+ chip_info.lvds_chip_info.lvds_chip_name = VT1631_LVDS;
+ chip_info.lvds_chip_info.lvds_chip_slave_addr = VT1631_LVDS_I2C_ADDR;
+
+ if (check_lvds_chip(VT1631_DEVICE_ID_REG, VT1631_DEVICE_ID) != FAIL) {
+ DEBUG_MSG(KERN_INFO "\n VT1631 LVDS ! \n");
+ DEBUG_MSG(KERN_INFO "\n %2d",
+ chip_info.lvds_chip_info.lvds_chip_name);
+ DEBUG_MSG(KERN_INFO "\n %2d",
+ chip_info.lvds_chip_info.lvds_chip_name);
+ return (OK);
+ }
+
+ chip_info.lvds_chip_info.lvds_chip_name = NON_LVDS_TRANSMITTER;
+ chip_info.lvds_chip_info.lvds_chip_slave_addr = VT1631_LVDS_I2C_ADDR;
+ return (FAIL);
+}
+
+int fp_id_to_vindex(int panel_id)
+{
+ DEBUG_MSG(KERN_INFO "fp_get_panel_id()\n");
+
+ if (panel_id > LCD_PANEL_ID_MAXIMUM)
+ lcd_panel_id = panel_id = read_reg(VIACR, CR3F) & 0x0F;
+
+ switch (panel_id) {
+ case 0x0:
+ lvds_setting_info.lcd_panel_hres = 640;
+ lvds_setting_info.lcd_panel_vres = 480;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID0_640X480;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_640X480);
+ break;
+ case 0x1:
+ lvds_setting_info.lcd_panel_hres = 800;
+ lvds_setting_info.lcd_panel_vres = 600;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID1_800X600;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_800X600);
+ break;
+ case 0x2:
+ lvds_setting_info.lcd_panel_hres = 1024;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID2_1024X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1024X768);
+ break;
+ case 0x3:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID3_1280X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1280X768);
+ break;
+ case 0x4:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 1024;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID4_1280X1024;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1280X1024);
+ break;
+ case 0x5:
+ lvds_setting_info.lcd_panel_hres = 1400;
+ lvds_setting_info.lcd_panel_vres = 1050;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID5_1400X1050;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1400X1050);
+ break;
+ case 0x6:
+ lvds_setting_info.lcd_panel_hres = 1600;
+ lvds_setting_info.lcd_panel_vres = 1200;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID6_1600X1200;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1600X1200);
+ break;
+ case 0x8:
+ lvds_setting_info.lcd_panel_hres = 800;
+ lvds_setting_info.lcd_panel_vres = 480;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_IDA_800X480;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_800X480);
+ break;
+ case 0x9:
+ lvds_setting_info.lcd_panel_hres = 1024;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID2_1024X768;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1024X768);
+ break;
+ case 0xA:
+ lvds_setting_info.lcd_panel_hres = 1024;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID2_1024X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1024X768);
+ break;
+ case 0xB:
+ lvds_setting_info.lcd_panel_hres = 1024;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID2_1024X768;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1024X768);
+ break;
+ case 0xC:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID3_1280X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1280X768);
+ break;
+ case 0xD:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 1024;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID4_1280X1024;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1280X1024);
+ break;
+ case 0xE:
+ lvds_setting_info.lcd_panel_hres = 1400;
+ lvds_setting_info.lcd_panel_vres = 1050;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID5_1400X1050;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1400X1050);
+ break;
+ case 0xF:
+ lvds_setting_info.lcd_panel_hres = 1600;
+ lvds_setting_info.lcd_panel_vres = 1200;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID6_1600X1200;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1600X1200);
+ break;
+ case 0x10:
+ lvds_setting_info.lcd_panel_hres = 1366;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID7_1366X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1368X768);
+ break;
+ case 0x11:
+ lvds_setting_info.lcd_panel_hres = 1024;
+ lvds_setting_info.lcd_panel_vres = 600;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID8_1024X600;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1024X600);
+ break;
+ case 0x12:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID3_1280X768;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1280X768);
+ break;
+ case 0x13:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 800;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID9_1280X800;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_1280X800);
+ break;
+ case 0x14:
+ lvds_setting_info.lcd_panel_hres = 1360;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_IDB_1360X768;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1360X768);
+ break;
+ case 0x15:
+ lvds_setting_info.lcd_panel_hres = 1280;
+ lvds_setting_info.lcd_panel_vres = 768;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID3_1280X768;
+ lvds_setting_info.device_lcd_dualedge = 1;
+ lvds_setting_info.LCDDithering = 0;
+ return (VIA_RES_1280X768);
+ break;
+ case 0x16:
+ lvds_setting_info.lcd_panel_hres = 480;
+ lvds_setting_info.lcd_panel_vres = 640;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_IDC_480X640;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_480X640);
+ break;
+ default:
+ lvds_setting_info.lcd_panel_hres = 800;
+ lvds_setting_info.lcd_panel_vres = 600;
+ lvds_setting_info.lcd_panel_id = LCD_PANEL_ID1_800X600;
+ lvds_setting_info.device_lcd_dualedge = 0;
+ lvds_setting_info.LCDDithering = 1;
+ return (VIA_RES_800X600);
+ }
+}
+
+void lvds_register_write(int index, u8 data)
+{
+ u8 tmp;
+
+ tmp = chip_info.chip_on_slot;
+
+ chip_info.chip_on_slot = PORT_ON_AGP;
+
+ i2cWriteByte(chip_info.lvds_chip_info.lvds_chip_slave_addr, index,
+ data);
+
+ chip_info.chip_on_slot = tmp;
+
+}
+
+int lvds_register_read(int index)
+{
+ u8 data;
+ int status;
+ u8 tmp;
+
+ tmp = chip_info.chip_on_slot;
+
+ chip_info.chip_on_slot = PORT_ON_AGP;
+ status =
+ i2cReadByte((u8) chip_info.lvds_chip_info.lvds_chip_slave_addr,
+ (u8) index, &data);
+
+ chip_info.chip_on_slot = tmp;
+ return (data);
+}
+
+void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
+ int panel_vres)
+{
+ int reg_value = 0;
+ int load_reg_num;
+ struct io_register *reg = NULL;
+
+ DEBUG_MSG(KERN_INFO "load_lcd_scaling()!!\n");
+
+ /* LCD Scaling Enable */
+ write_reg_mask(CR79, VIACR, 0x07, BIT0 + BIT1 + BIT2);
+ if (UNICHROME_P4M900 == chip_info.gfx_chip_name) {
+ load_scaling_factor_for_p4m900(set_hres, set_vres,
+ panel_hres, panel_vres);
+ return;
+ }
+
+ /* Check if expansion for horizontal */
+ if (set_hres != panel_hres) {
+ /* Load Horizontal Scaling Factor */
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_CLE266:
+ case UNICHROME_K400:
+ reg_value =
+ CLE266_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
+ load_reg_num =
+ lcd_scaling_factor_CLE.lcd_hor_scaling_factor.
+ reg_num;
+ reg = lcd_scaling_factor_CLE.lcd_hor_scaling_factor.reg;
+ load_reg(reg_value, load_reg_num, reg, VIACR);
+ break;
+ case UNICHROME_K800:
+ case UNICHROME_PM800:
+ case UNICHROME_CN700:
+ case UNICHROME_CX700:
+ case UNICHROME_K8M890:
+ case UNICHROME_P4M890:
+ reg_value =
+ K800_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
+ /* Horizontal scaling enabled */
+ write_reg_mask(CRA2, VIACR, 0xC0, BIT7 + BIT6);
+ load_reg_num =
+ lcd_scaling_factor.lcd_hor_scaling_factor.reg_num;
+ reg = lcd_scaling_factor.lcd_hor_scaling_factor.reg;
+ load_reg(reg_value, load_reg_num, reg, VIACR);
+ break;
+ }
+
+ DEBUG_MSG(KERN_INFO "Horizontal Scaling value = %d", reg_value);
+ } else {
+ /* Horizontal scaling disabled */
+ write_reg_mask(CRA2, VIACR, 0x00, BIT7);
+ }
+
+ /* Check if expansion for vertical */
+ if (set_vres != panel_vres) {
+ /* Load Vertical Scaling Factor */
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_CLE266:
+ case UNICHROME_K400:
+ reg_value =
+ CLE266_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
+ load_reg_num =
+ lcd_scaling_factor_CLE.lcd_ver_scaling_factor.
+ reg_num;
+ reg = lcd_scaling_factor_CLE.lcd_ver_scaling_factor.reg;
+ load_reg(reg_value, load_reg_num, reg, VIACR);
+ break;
+ case UNICHROME_K800:
+ case UNICHROME_PM800:
+ case UNICHROME_CN700:
+ case UNICHROME_CX700:
+ case UNICHROME_K8M890:
+ case UNICHROME_P4M890:
+ reg_value =
+ K800_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
+ /* Vertical scaling enabled */
+ write_reg_mask(CRA2, VIACR, 0x08, BIT3);
+ load_reg_num =
+ lcd_scaling_factor.lcd_ver_scaling_factor.reg_num;
+ reg = lcd_scaling_factor.lcd_ver_scaling_factor.reg;
+ load_reg(reg_value, load_reg_num, reg, VIACR);
+ break;
+ }
+
+ DEBUG_MSG(KERN_INFO "Vertical Scaling value = %d", reg_value);
+ } else {
+ /* Vertical scaling disabled */
+ write_reg_mask(CRA2, VIACR, 0x00, BIT3);
+ }
+}
+
+void load_lcd_k400_patch_tbl(int set_hres, int set_vres, int panel_id)
+{
+ int vmode_index;
+ int reg_num = 0;
+ struct io_reg *lcd_patch_reg = NULL;
+
+ if (lvds_setting_info.iga_path == IGA2)
+ vmode_index = get_mode_index(set_hres, set_vres, 1);
+ else
+ vmode_index = get_mode_index(set_hres, set_vres, 0);
+ switch (panel_id) {
+ /* LCD 800x600 */
+ case LCD_PANEL_ID1_800X600:
+ switch (vmode_index) {
+ case VIA_RES_640X400:
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_8X6;
+ lcd_patch_reg = K400_LCD_RES_6X4_8X6;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_K400_LCD_RES_7X4_8X6;
+ lcd_patch_reg = K400_LCD_RES_7X4_8X6;
+ break;
+ }
+ break;
+
+ /* LCD 1024x768 */
+ case LCD_PANEL_ID2_1024X768:
+ switch (vmode_index) {
+ case VIA_RES_640X400:
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_10X7;
+ lcd_patch_reg = K400_LCD_RES_6X4_10X7;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_K400_LCD_RES_7X4_10X7;
+ lcd_patch_reg = K400_LCD_RES_7X4_10X7;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_K400_LCD_RES_8X6_10X7;
+ lcd_patch_reg = K400_LCD_RES_8X6_10X7;
+ break;
+ }
+ break;
+
+ /* LCD 1280x1024 */
+ case LCD_PANEL_ID4_1280X1024:
+ switch (vmode_index) {
+ case VIA_RES_640X400:
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_12X10;
+ lcd_patch_reg = K400_LCD_RES_6X4_12X10;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_K400_LCD_RES_7X4_12X10;
+ lcd_patch_reg = K400_LCD_RES_7X4_12X10;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_K400_LCD_RES_8X6_12X10;
+ lcd_patch_reg = K400_LCD_RES_8X6_12X10;
+ break;
+ case VIA_RES_1024X768:
+ reg_num = NUM_TOTAL_K400_LCD_RES_10X7_12X10;
+ lcd_patch_reg = K400_LCD_RES_10X7_12X10;
+ break;
+
+ }
+ break;
+
+ /* LCD 1400x1050 */
+ case LCD_PANEL_ID5_1400X1050:
+ switch (vmode_index) {
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_14X10;
+ lcd_patch_reg = K400_LCD_RES_6X4_14X10;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_K400_LCD_RES_8X6_14X10;
+ lcd_patch_reg = K400_LCD_RES_8X6_14X10;
+ break;
+ case VIA_RES_1024X768:
+ reg_num = NUM_TOTAL_K400_LCD_RES_10X7_14X10;
+ lcd_patch_reg = K400_LCD_RES_10X7_14X10;
+ break;
+ case VIA_RES_1280X768:
+ case VIA_RES_1280X800:
+ case VIA_RES_1280X960:
+ case VIA_RES_1280X1024:
+ reg_num = NUM_TOTAL_K400_LCD_RES_12X10_14X10;
+ lcd_patch_reg = K400_LCD_RES_12X10_14X10;
+ break;
+ }
+ break;
+
+ /* LCD 1600x1200 */
+ case LCD_PANEL_ID6_1600X1200:
+ switch (vmode_index) {
+ case VIA_RES_640X400:
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_16X12;
+ lcd_patch_reg = K400_LCD_RES_6X4_16X12;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_K400_LCD_RES_7X4_16X12;
+ lcd_patch_reg = K400_LCD_RES_7X4_16X12;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_K400_LCD_RES_8X6_16X12;
+ lcd_patch_reg = K400_LCD_RES_8X6_16X12;
+ break;
+ case VIA_RES_1024X768:
+ reg_num = NUM_TOTAL_K400_LCD_RES_10X7_16X12;
+ lcd_patch_reg = K400_LCD_RES_10X7_16X12;
+ break;
+ case VIA_RES_1280X768:
+ case VIA_RES_1280X800:
+ case VIA_RES_1280X960:
+ case VIA_RES_1280X1024:
+ reg_num = NUM_TOTAL_K400_LCD_RES_12X10_16X12;
+ lcd_patch_reg = K400_LCD_RES_12X10_16X12;
+ break;
+ }
+ break;
+
+ /* LCD 1366x768 */
+ case LCD_PANEL_ID7_1366X768:
+ switch (vmode_index) {
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_K400_LCD_RES_6X4_1366X7;
+ lcd_patch_reg = K400_LCD_RES_6X4_1366X7;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_K400_LCD_RES_7X4_1366X7;
+ lcd_patch_reg = K400_LCD_RES_7X4_1366X7;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_K400_LCD_RES_8X6_1366X7;
+ lcd_patch_reg = K400_LCD_RES_8X6_1366X7;
+ break;
+ case VIA_RES_1024X768:
+ reg_num = NUM_TOTAL_K400_LCD_RES_10X7_1366X7;
+ lcd_patch_reg = K400_LCD_RES_10X7_1366X7;
+ break;
+ case VIA_RES_1280X768:
+ case VIA_RES_1280X800:
+ case VIA_RES_1280X960:
+ case VIA_RES_1280X1024:
+ reg_num = NUM_TOTAL_K400_LCD_RES_12X10_1366X7;
+ lcd_patch_reg = K400_LCD_RES_12X10_1366X7;
+ break;
+ }
+ break;
+
+ /* LCD 1360x768 */
+ case LCD_PANEL_IDB_1360X768:
+ break;
+ }
+ if (reg_num != 0) {
+ /* H.W. Reset : ON */
+ write_reg_mask(CR17, VIACR, 0x00, BIT7);
+
+ write_regx(lcd_patch_reg, reg_num);
+
+ /* H.W. Reset : OFF */
+ write_reg_mask(CR17, VIACR, 0x80, BIT7);
+
+ /* Reset PLL */
+ write_reg_mask(SR40, VIASR, 0x02, BIT1);
+ write_reg_mask(SR40, VIASR, 0x00, BIT1);
+
+ /* Fire! */
+ outb(inb(VIARMisc) | (BIT2 + BIT3), VIAWMisc);
+ }
+}
+
+void load_lcd_p880_patch_tbl(int set_hres, int set_vres, int panel_id)
+{
+ int vmode_index;
+ int reg_num = 0;
+ struct io_reg *lcd_patch_reg = NULL;
+
+ if (lvds_setting_info.iga_path == IGA2)
+ vmode_index = get_mode_index(set_hres, set_vres, 1);
+ else
+ vmode_index = get_mode_index(set_hres, set_vres, 0);
+
+ switch (panel_id) {
+ case LCD_PANEL_ID5_1400X1050:
+ switch (vmode_index) {
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_P880_LCD_RES_6X4_14X10;
+ lcd_patch_reg = P880_LCD_RES_6X4_14X10;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_P880_LCD_RES_8X6_14X10;
+ lcd_patch_reg = P880_LCD_RES_8X6_14X10;
+ break;
+ }
+ break;
+ case LCD_PANEL_ID6_1600X1200:
+ switch (vmode_index) {
+ case VIA_RES_640X400:
+ case VIA_RES_640X480:
+ reg_num = NUM_TOTAL_P880_LCD_RES_6X4_16X12;
+ lcd_patch_reg = P880_LCD_RES_6X4_16X12;
+ break;
+ case VIA_RES_720X480:
+ case VIA_RES_720X576:
+ reg_num = NUM_TOTAL_P880_LCD_RES_7X4_16X12;
+ lcd_patch_reg = P880_LCD_RES_7X4_16X12;
+ break;
+ case VIA_RES_800X600:
+ reg_num = NUM_TOTAL_P880_LCD_RES_8X6_16X12;
+ lcd_patch_reg = P880_LCD_RES_8X6_16X12;
+ break;
+ case VIA_RES_1024X768:
+ reg_num = NUM_TOTAL_P880_LCD_RES_10X7_16X12;
+ lcd_patch_reg = P880_LCD_RES_10X7_16X12;
+ break;
+ case VIA_RES_1280X768:
+ case VIA_RES_1280X960:
+ case VIA_RES_1280X1024:
+ reg_num = NUM_TOTAL_P880_LCD_RES_12X10_16X12;
+ lcd_patch_reg = P880_LCD_RES_12X10_16X12;
+ break;
+ }
+ break;
+
+ }
+ if (reg_num != 0) {
+ /* H.W. Reset : ON */
+ write_reg_mask(CR17, VIACR, 0x00, BIT7);
+
+ write_regx(lcd_patch_reg, reg_num);
+
+ /* H.W. Reset : OFF */
+ write_reg_mask(CR17, VIACR, 0x80, BIT7);
+
+ /* Reset PLL */
+ write_reg_mask(SR40, VIASR, 0x02, BIT1);
+ write_reg_mask(SR40, VIASR, 0x00, BIT1);
+
+ /* Fire! */
+ outb(inb(VIARMisc) | (BIT2 + BIT3), VIAWMisc);
+ }
+}
+
+void load_lcd_patch_regs(int set_hres, int set_vres, int panel_id, int set_iga)
+{
+ int vmode_index;
+
+ if (lvds_setting_info.iga_path == IGA2)
+ vmode_index = get_mode_index(set_hres, set_vres, 1);
+ else
+ vmode_index = get_mode_index(set_hres, set_vres, 0);
+
+ unlock_crt();
+
+ /* Patch for simultaneous & Expansion */
+ if ((set_iga == IGA1_IGA2)
+ && (lvds_setting_info.display_method == LCD_EXPANDSION)) {
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_CLE266:
+ case UNICHROME_K400:
+ load_lcd_k400_patch_tbl(set_hres, set_vres, panel_id);
+ break;
+ case UNICHROME_K800:
+ break;
+ case UNICHROME_PM800:
+ case UNICHROME_CN700:
+ case UNICHROME_CX700:
+ load_lcd_p880_patch_tbl(set_hres, set_vres, panel_id);
+ }
+ }
+
+ lock_crt();
+}
+
+void via_pitch_alignment_patch_lcd(struct lvds_setting_information
+ *plvds_setting_info,
+ struct lvds_chip_information
+ *plvds_chip_info)
+{
+ unsigned char cr13, cr35, cr65, cr66, cr67;
+ unsigned long dwScreenPitch = 0;
+ unsigned long dwPitch;
+
+ dwPitch = plvds_setting_info->h_active * (plvds_setting_info->bpp >> 3);
+ if (dwPitch & 0x1F) {
+ dwScreenPitch = ((dwPitch + 31) & ~31) >> 3;
+ if (plvds_setting_info->iga_path == IGA2) {
+ if (plvds_setting_info->bpp > 8) {
+ cr66 = (unsigned char)(dwScreenPitch & 0xFF);
+ write_reg(CR66, VIACR, cr66);
+ cr67 = read_reg(VIACR, CR67) & 0xFC;
+ cr67 |=
+ (unsigned
+ char)((dwScreenPitch & 0x300) >> 8);
+ write_reg(CR67, VIACR, cr67);
+ }
+
+ /* Fetch Count */
+ cr67 = read_reg(VIACR, CR67) & 0xF3;
+ cr67 |= (unsigned char)((dwScreenPitch & 0x600) >> 7);
+ write_reg(CR67, VIACR, cr67);
+ cr65 = (unsigned char)((dwScreenPitch >> 1) & 0xFF);
+ cr65 += 2;
+ write_reg(CR65, VIACR, cr65);
+ } else {
+ if (plvds_setting_info->bpp > 8) {
+ cr13 = (unsigned char)(dwScreenPitch & 0xFF);
+ write_reg(CR13, VIACR, cr13);
+ cr35 = read_reg(VIACR, CR35) & 0x1F;
+ cr35 |=
+ (unsigned
+ char)((dwScreenPitch & 0x700) >> 3);
+ write_reg(CR35, VIACR, cr35);
+ }
+ }
+ }
+}
+void lcd_patch_skew_dvp0(struct lvds_setting_information
+ *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ if (VT1636_LVDS == plvds_chip_info->lvds_chip_name) {
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_P4M900:
+ vt1636_patch_skew_on_vt3364(plvds_setting_info,
+ plvds_chip_info);
+ break;
+ case UNICHROME_P4M890:
+ vt1636_patch_skew_on_vt3327(plvds_setting_info,
+ plvds_chip_info);
+ break;
+ }
+ }
+}
+void lcd_patch_skew_dvp1(struct lvds_setting_information
+ *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ if (VT1636_LVDS == plvds_chip_info->lvds_chip_name) {
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_CX700:
+ vt1636_patch_skew_on_vt3324(plvds_setting_info,
+ plvds_chip_info);
+ break;
+ }
+ }
+}
+void lcd_patch_skew(struct lvds_setting_information *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ DEBUG_MSG(KERN_INFO "lcd_patch_skew\n");
+ switch (plvds_chip_info->output_interface) {
+ case INTERFACE_DVP0:
+ lcd_patch_skew_dvp0(plvds_setting_info, plvds_chip_info);
+ break;
+ case INTERFACE_DVP1:
+ lcd_patch_skew_dvp1(plvds_setting_info, plvds_chip_info);
+ break;
+ case INTERFACE_DFP_LOW:
+ if (UNICHROME_P4M900 == chip_info.gfx_chip_name) {
+ write_reg_mask(CR99, VIACR, 0x08,
+ BIT0 + BIT1 + BIT2 + BIT3);
+ }
+ break;
+ }
+}
+
+/* LCD Set Mode */
+void lcd_set_mode(struct crt_mode_table *mode_crt_table,
+ struct lvds_setting_information *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ int video_index = plvds_setting_info->lcd_panel_size;
+ int set_iga = plvds_setting_info->iga_path;
+ int mode_bpp = plvds_setting_info->bpp;
+ int load_reg_num = 0;
+ int reg_value = 0;
+ int set_hres, set_vres;
+ int panel_hres, panel_vres;
+ u32 pll_D_N;
+ int offset;
+ struct io_register *reg = NULL;
+ struct display_timing mode_crt_reg, panel_crt_reg;
+ struct crt_mode_table *panel_crt_table = NULL;
+ struct VideoModeTable *vmode_tbl = NULL;
+
+ DEBUG_MSG(KERN_INFO "LCD_Set_Mode!!\n");
+ /* Get mode table */
+ mode_crt_reg = mode_crt_table->crtc;
+ /* Get panel table Pointer */
+ vmode_tbl = get_modetbl_pointer(video_index);
+ panel_crt_table = vmode_tbl->crtc;
+ panel_crt_reg = panel_crt_table->crtc;
+ DEBUG_MSG(KERN_INFO "bellow LCD_Set_Mode!!\n");
+ set_hres = plvds_setting_info->h_active;
+ set_vres = plvds_setting_info->v_active;
+ panel_hres = plvds_setting_info->lcd_panel_hres;
+ panel_vres = plvds_setting_info->lcd_panel_vres;
+ if (VT1636_LVDS == plvds_chip_info->lvds_chip_name)
+ init_lvds_vt1636(plvds_setting_info, plvds_chip_info);
+ plvds_setting_info->vclk = panel_crt_table->clk;
+ if (set_iga == IGA1) {
+ /* IGA1 doesn't have LCD scaling, so set it as centering. */
+ load_crtc_timing(lcd_centering_timging
+ (mode_crt_reg, panel_crt_reg), IGA1);
+ } else {
+ /* Expansion */
+ if ((plvds_setting_info->display_method ==
+ LCD_EXPANDSION) & ((set_hres != panel_hres)
+ || (set_vres != panel_vres))) {
+ /* expansion timing IGA2 loaded panel set timing*/
+ load_crtc_timing(panel_crt_reg, IGA2);
+ DEBUG_MSG(KERN_INFO "load_crtc_timing!!\n");
+ load_lcd_scaling(set_hres, set_vres, panel_hres,
+ panel_vres);
+ DEBUG_MSG(KERN_INFO "load_lcd_scaling!!\n");
+ } else { /* Centering */
+ /* centering timing IGA2 always loaded panel
+ and mode releative timing */
+ load_crtc_timing(lcd_centering_timging
+ (mode_crt_reg, panel_crt_reg), IGA2);
+ write_reg_mask(CR79, VIACR, 0x00, BIT0 + BIT1 + BIT2);
+ /* LCD scaling disabled */
+ }
+ }
+
+ if (set_iga == IGA1_IGA2) {
+ load_crtc_shadow_timing(mode_crt_reg, panel_crt_reg);
+ /* Fill shadow registers */
+
+ switch (plvds_setting_info->lcd_panel_id) {
+ case LCD_PANEL_ID0_640X480:
+ offset = 80;
+ break;
+ case LCD_PANEL_ID1_800X600:
+ case LCD_PANEL_IDA_800X480:
+ offset = 110;
+ break;
+ case LCD_PANEL_ID2_1024X768:
+ offset = 150;
+ break;
+ case LCD_PANEL_ID3_1280X768:
+ case LCD_PANEL_ID4_1280X1024:
+ case LCD_PANEL_ID5_1400X1050:
+ case LCD_PANEL_ID9_1280X800:
+ offset = 190;
+ break;
+ case LCD_PANEL_ID6_1600X1200:
+ offset = 250;
+ break;
+ case LCD_PANEL_ID7_1366X768:
+ case LCD_PANEL_IDB_1360X768:
+ offset = 212;
+ break;
+ default:
+ offset = 140;
+ break;
+ }
+
+ /* Offset for simultaneous */
+ reg_value = offset;
+ load_reg_num = offset_reg.iga2_offset_reg.reg_num;
+ reg = offset_reg.iga2_offset_reg.reg;
+ load_reg(reg_value, load_reg_num, reg, VIACR);
+ DEBUG_MSG(KERN_INFO "load_reg!!\n");
+ load_fetch_count_reg(set_hres, 4, IGA2);
+ /* Fetch count for simultaneous */
+ } else { /* SAMM */
+ /* Offset for IGA2 only */
+ load_offset_reg(set_hres, mode_bpp / 8, set_iga);
+ /* Fetch count for IGA2 only */
+ load_fetch_count_reg(set_hres, mode_bpp / 8, set_iga);
+
+ if ((chip_info.gfx_chip_name != UNICHROME_CLE266)
+ && (chip_info.gfx_chip_name != UNICHROME_K400))
+ load_FIFO_reg(set_iga, set_hres, set_vres);
+
+ set_color_depth(mode_bpp / 8, set_iga);
+ }
+
+ fill_lcd_format();
+
+ pll_D_N = get_clk_value(panel_crt_table[0].clk);
+ DEBUG_MSG(KERN_INFO "PLL=0x%x", pll_D_N);
+ set_vclock(pll_D_N, set_iga);
+
+ set_output_path(DEVICE_LCD, set_iga, plvds_chip_info->output_interface);
+ lcd_patch_skew(plvds_setting_info, plvds_chip_info);
+
+ /* If K8M800, enable LCD Prefetch Mode. */
+ if ((chip_info.gfx_chip_name == UNICHROME_K800)
+ || (UNICHROME_K8M890 == chip_info.gfx_chip_name))
+ write_reg_mask(CR6A, VIACR, 0x01, BIT0);
+
+ load_lcd_patch_regs(set_hres, set_vres,
+ plvds_setting_info->lcd_panel_id, set_iga);
+
+ DEBUG_MSG(KERN_INFO "load_lcd_patch_regs!!\n");
+
+ /* Patch for non 32bit alignment mode */
+ via_pitch_alignment_patch_lcd(plvds_setting_info, plvds_chip_info);
+}
+
+void integrated_lvds_disable(struct lvds_setting_information
+ *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ bool turn_off_first_powersequence = FALSE;
+ bool turn_off_second_powersequence = FALSE;
+ if (INTERFACE_LVDS0LVDS1 == plvds_chip_info->output_interface)
+ turn_off_first_powersequence = TRUE;
+ if (INTERFACE_LVDS0 == plvds_chip_info->output_interface)
+ turn_off_first_powersequence = TRUE;
+ if (INTERFACE_LVDS1 == plvds_chip_info->output_interface)
+ turn_off_second_powersequence = TRUE;
+ if (turn_off_second_powersequence) {
+ /* Use second power sequence control: */
+
+ /* Turn off power sequence. */
+ write_reg_mask(CRD4, VIACR, 0, BIT1);
+
+ /* Turn off back light. */
+ write_reg_mask(CRD3, VIACR, 0xC0, BIT6 + BIT7);
+ }
+ if (turn_off_first_powersequence) {
+ /* Use first power sequence control: */
+
+ /* Turn off power sequence. */
+ write_reg_mask(CR6A, VIACR, 0, BIT3);
+
+ /* Turn off back light. */
+ write_reg_mask(CR91, VIACR, 0xC0, BIT6 + BIT7);
+ }
+
+ /* Turn DFP High/Low Pad off. */
+ write_reg_mask(SR2A, VIASR, 0, BIT0 + BIT1 + BIT2 + BIT3);
+
+ /* Power off LVDS channel. */
+ switch (plvds_chip_info->output_interface) {
+ case INTERFACE_LVDS0:
+ {
+ write_reg_mask(CRD2, VIACR, 0x80, BIT7);
+ break;
+ }
+
+ case INTERFACE_LVDS1:
+ {
+ write_reg_mask(CRD2, VIACR, 0x40, BIT6);
+ break;
+ }
+
+ case INTERFACE_LVDS0LVDS1:
+ {
+ write_reg_mask(CRD2, VIACR, 0xC0, BIT6 + BIT7);
+ break;
+ }
+ }
+}
+
+void integrated_lvds_enable(struct lvds_setting_information
+ *plvds_setting_info,
+ struct lvds_chip_information *plvds_chip_info)
+{
+ bool turn_on_first_powersequence = FALSE;
+ bool turn_on_second_powersequence = FALSE;
+
+ DEBUG_MSG(KERN_INFO "integrated_lvds_enable, out_interface:%d\n",
+ plvds_chip_info->output_interface);
+ if (plvds_setting_info->lcd_mode == LCD_SPWG)
+ write_reg_mask(CRD2, VIACR, 0x00, BIT0 + BIT1);
+ else
+ write_reg_mask(CRD2, VIACR, 0x03, BIT0 + BIT1);
+ if (INTERFACE_LVDS0LVDS1 == plvds_chip_info->output_interface)
+ turn_on_first_powersequence = TRUE;
+ if (INTERFACE_LVDS0 == plvds_chip_info->output_interface)
+ turn_on_first_powersequence = TRUE;
+ if (INTERFACE_LVDS1 == plvds_chip_info->output_interface)
+ turn_on_second_powersequence = TRUE;
+
+ if (turn_on_second_powersequence) {
+ /* Use second power sequence control: */
+
+ /* Use hardware control power sequence. */
+ write_reg_mask(CRD3, VIACR, 0, BIT0);
+
+ /* Turn on back light. */
+ write_reg_mask(CRD3, VIACR, 0, BIT6 + BIT7);
+
+ /* Turn on hardware power sequence. */
+ write_reg_mask(CRD4, VIACR, 0x02, BIT1);
+ }
+ if (turn_on_first_powersequence) {
+ /* Use first power sequence control: */
+
+ /* Use hardware control power sequence. */
+ write_reg_mask(CR91, VIACR, 0, BIT0);
+
+ /* Turn on back light. */
+ write_reg_mask(CR91, VIACR, 0, BIT6 + BIT7);
+
+ /* Turn on hardware power sequence. */
+ write_reg_mask(CR6A, VIACR, 0x08, BIT3);
+ }
+
+ /* Turn DFP High/Low pad on. */
+ write_reg_mask(SR2A, VIASR, 0x0F, BIT0 + BIT1 + BIT2 + BIT3);
+
+ /* Power on LVDS channel. */
+ switch (plvds_chip_info->output_interface) {
+ case INTERFACE_LVDS0:
+ {
+ write_reg_mask(CRD2, VIACR, 0, BIT7);
+ break;
+ }
+
+ case INTERFACE_LVDS1:
+ {
+ write_reg_mask(CRD2, VIACR, 0, BIT6);
+ break;
+ }
+
+ case INTERFACE_LVDS0LVDS1:
+ {
+ write_reg_mask(CRD2, VIACR, 0, BIT6 + BIT7);
+ break;
+ }
+ }
+}
+
+void lcd_disable(void)
+{
+
+ if (chip_info.gfx_chip_name == UNICHROME_CLE266) {
+ lcd_powersequence_off();
+ /* DI1 pad off */
+ write_reg_mask(SR1E, VIASR, 0x00, 0x30);
+ } else if (chip_info.gfx_chip_name == UNICHROME_CX700) {
+ if (LCD2_ON
+ && (INTEGRATED_LVDS ==
+ chip_info.lvds_chip_info2.lvds_chip_name))
+ integrated_lvds_disable(&lvds_setting_info2,
+ &chip_info.lvds_chip_info2);
+ if (INTEGRATED_LVDS == chip_info.lvds_chip_info.lvds_chip_name)
+ integrated_lvds_disable(&lvds_setting_info,
+ &chip_info.lvds_chip_info);
+ if (VT1636_LVDS == chip_info.lvds_chip_info.lvds_chip_name)
+ disable_lvds_vt1636(&lvds_setting_info,
+ &chip_info.lvds_chip_info);
+ } else if (VT1636_LVDS == chip_info.lvds_chip_info.lvds_chip_name) {
+ disable_lvds_vt1636(&lvds_setting_info,
+ &chip_info.lvds_chip_info);
+ } else {
+ /* DFP-HL pad off */
+ write_reg_mask(SR2A, VIASR, 0x00, 0x0F);
+ /* Backlight off */
+ write_reg_mask(SR3D, VIASR, 0x00, 0x20);
+ /* 24 bit DI data paht off */
+ write_reg_mask(CR91, VIACR, 0x80, 0x80);
+ /* Simultaneout disabled */
+ write_reg_mask(CR6B, VIACR, 0x00, 0x08);
+ }
+
+ /* Disable expansion bit */
+ write_reg_mask(CR79, VIACR, 0x00, 0x01);
+ /* CRT path set to IGA1 */
+ write_reg_mask(SR16, VIASR, 0x00, 0x40);
+ /* Simultaneout disabled */
+ write_reg_mask(CR6B, VIACR, 0x00, 0x08);
+ /* IGA2 path disabled */
+ write_reg_mask(CR6A, VIACR, 0x00, 0x80);
+
+}
+
+void lcd_enable(void)
+{
+ if (chip_info.gfx_chip_name == UNICHROME_CLE266) {
+ /* DI1 pad on */
+ write_reg_mask(SR1E, VIASR, 0x30, 0x30);
+ lcd_powersequence_on();
+ } else if (chip_info.gfx_chip_name == UNICHROME_CX700) {
+ if (LCD2_ON && (INTEGRATED_LVDS ==
+ chip_info.lvds_chip_info2.lvds_chip_name))
+ integrated_lvds_enable(&lvds_setting_info2, \
+ &chip_info.lvds_chip_info2);
+ if (INTEGRATED_LVDS == chip_info.lvds_chip_info.lvds_chip_name)
+ integrated_lvds_enable(&lvds_setting_info, \
+ &chip_info.lvds_chip_info);
+ if (VT1636_LVDS == chip_info.lvds_chip_info.lvds_chip_name)
+ enable_lvds_vt1636(&lvds_setting_info, \
+ &chip_info.lvds_chip_info);
+ } else if (VT1636_LVDS == chip_info.lvds_chip_info.lvds_chip_name) {
+ enable_lvds_vt1636(&lvds_setting_info,
+ &chip_info.lvds_chip_info);
+ } else {
+ /* DFP-HL pad on */
+ write_reg_mask(SR2A, VIASR, 0x0F, 0x0F);
+ /* Backlight on */
+ write_reg_mask(SR3D, VIASR, 0x20, 0x20);
+ /* 24 bit DI data paht on */
+ write_reg_mask(CR91, VIACR, 0x00, 0x80);
+
+ /* Set data source selection bit by iga path */
+ if (lvds_setting_info.iga_path == IGA1) {
+ /* DFP-H set to IGA1 */
+ write_reg_mask(CR97, VIACR, 0x00, 0x10);
+ /* DFP-L set to IGA1 */
+ write_reg_mask(CR99, VIACR, 0x00, 0x10);
+ } else {
+ /* DFP-H set to IGA2 */
+ write_reg_mask(CR97, VIACR, 0x10, 0x10);
+ /* DFP-L set to IGA2 */
+ write_reg_mask(CR99, VIACR, 0x10, 0x10);
+ }
+ /* LCD enabled */
+ write_reg_mask(CR6A, VIACR, 0x48, 0x48);
+ }
+
+ if ((lvds_setting_info.iga_path == IGA1)
+ || (lvds_setting_info.iga_path == IGA1_IGA2)) {
+ /* CRT path set to IGA2 */
+ write_reg_mask(SR16, VIASR, 0x40, 0x40);
+ /* IGA2 path disabled */
+ write_reg_mask(CR6A, VIACR, 0x00, 0x80);
+ /* IGA2 path enabled */
+ } else { /* IGA2 */
+ write_reg_mask(CR6A, VIACR, 0x80, 0x80);
+ }
+
+}
+
+void lcd_powersequence_off(void)
+{
+ int i, mask, data;
+
+ /* Software control power sequence */
+ write_reg_mask(CR91, VIACR, 0x11, 0x11);
+
+ for (i = 0; i < 3; i++) {
+ mask = PowerSequenceOff[0][i];
+ data = PowerSequenceOff[1][i] & mask;
+ write_reg_mask(CR91, VIACR, (u8) data, (u8) mask);
+ delays(PowerSequenceOff[2][i]);
+ }
+
+ /* Disable LCD */
+ write_reg_mask(CR6A, VIACR, 0x00, 0x08);
+}
+
+void lcd_powersequence_on(void)
+{
+ int i, mask, data;
+
+ /* Software control power sequence */
+ write_reg_mask(CR91, VIACR, 0x11, 0x11);
+
+ /* Enable LCD */
+ write_reg_mask(CR6A, VIACR, 0x08, 0x08);
+
+ for (i = 0; i < 3; i++) {
+ mask = PowerSequenceOn[0][i];
+ data = PowerSequenceOn[1][i] & mask;
+ write_reg_mask(CR91, VIACR, (u8) data, (u8) mask);
+ delays(PowerSequenceOn[2][i]);
+ }
+
+ delays(1);
+}
+
+void fill_lcd_format(void)
+{
+ u8 bdithering = 0, bdual = 0;
+
+ if (lvds_setting_info.device_lcd_dualedge)
+ bdual = BIT4;
+ if (lvds_setting_info.LCDDithering)
+ bdithering = BIT0;
+ /* Dual & Dithering */
+ write_reg_mask(CR88, VIACR, (bdithering | bdual), BIT4 + BIT0);
+}
+
+void check_diport_of_integrated_lvds(struct lvds_chip_information
+ *plvds_chip_info,
+ struct lvds_setting_information
+ *plvds_setting_info)
+{
+ /* Determine LCD DI Port by hardware layout. */
+ switch (display_hardware_layout) {
+ case HW_LAYOUT_LCD_ONLY:
+ {
+ if (plvds_setting_info->device_lcd_dualedge) {
+ plvds_chip_info->output_interface =
+ INTERFACE_LVDS0LVDS1;
+ } else {
+ plvds_chip_info->output_interface =
+ INTERFACE_LVDS0;
+ }
+
+ break;
+ }
+
+ case HW_LAYOUT_DVI_ONLY:
+ {
+ plvds_chip_info->output_interface = INTERFACE_NONE;
+ break;
+ }
+
+ case HW_LAYOUT_LCD1_LCD2:
+ case HW_LAYOUT_LCD_EXTERNAL_LCD2:
+ {
+ plvds_chip_info->output_interface =
+ INTERFACE_LVDS0LVDS1;
+ break;
+ }
+
+ case HW_LAYOUT_LCD_DVI:
+ {
+ plvds_chip_info->output_interface = INTERFACE_LVDS1;
+ break;
+ }
+
+ default:
+ {
+ plvds_chip_info->output_interface = INTERFACE_LVDS1;
+ break;
+ }
+ }
+
+ DEBUG_MSG(KERN_INFO
+ "Display Hardware Layout: 0x%x, LCD DI Port: 0x%x\n",
+ display_hardware_layout, plvds_chip_info->output_interface);
+}
+
+void init_lvds_output_interface(struct lvds_chip_information
+ *plvds_chip_info,
+ struct lvds_setting_information
+ *plvds_setting_info)
+{
+ if (INTERFACE_NONE != plvds_chip_info->output_interface) {
+ /*Do nothing, lcd port is specified by module parameter */
+ return;
+ }
+
+ switch (plvds_chip_info->lvds_chip_name) {
+
+ case VT1636_LVDS:
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_CX700:
+ plvds_chip_info->output_interface = INTERFACE_DVP1;
+ break;
+ case UNICHROME_CN700:
+ plvds_chip_info->output_interface = INTERFACE_DFP_LOW;
+ break;
+ default:
+ plvds_chip_info->output_interface = INTERFACE_DVP0;
+ break;
+ }
+ break;
+
+ case INTEGRATED_LVDS:
+ check_diport_of_integrated_lvds(plvds_chip_info,
+ plvds_setting_info);
+ break;
+
+ default:
+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_K8M890:
+ case UNICHROME_P4M900:
+ case UNICHROME_P4M890:
+ plvds_chip_info->output_interface = INTERFACE_DFP_LOW;
+ break;
+ default:
+ plvds_chip_info->output_interface = INTERFACE_DFP;
+ break;
+ }
+ break;
+ }
+}
+
+struct display_timing lcd_centering_timging(struct display_timing
+ mode_crt_reg,
+ struct display_timing panel_crt_reg)
+{
+ struct display_timing crt_reg;
+
+ crt_reg.hor_total = panel_crt_reg.hor_total;
+ crt_reg.hor_addr = mode_crt_reg.hor_addr;
+ crt_reg.hor_blank_start =
+ (panel_crt_reg.hor_addr - mode_crt_reg.hor_addr) / 2 +
+ crt_reg.hor_addr;
+ crt_reg.hor_blank_end = panel_crt_reg.hor_blank_end;
+ crt_reg.hor_sync_start =
+ (panel_crt_reg.hor_sync_start -
+ panel_crt_reg.hor_blank_start) + crt_reg.hor_blank_start;
+ crt_reg.hor_sync_end = panel_crt_reg.hor_sync_end;
+
+ crt_reg.ver_total = panel_crt_reg.ver_total;
+ crt_reg.ver_addr = mode_crt_reg.ver_addr;
+ crt_reg.ver_blank_start =
+ (panel_crt_reg.ver_addr - mode_crt_reg.ver_addr) / 2 +
+ crt_reg.ver_addr;
+ crt_reg.ver_blank_end = panel_crt_reg.ver_blank_end;
+ crt_reg.ver_sync_start =
+ (panel_crt_reg.ver_sync_start -
+ panel_crt_reg.ver_blank_start) + crt_reg.ver_blank_start;
+ crt_reg.ver_sync_end = panel_crt_reg.ver_sync_end;
+
+ return crt_reg;
+}
+
+void load_crtc_shadow_timing(struct display_timing mode_timing,
+ struct display_timing panel_timing)
+{
+ struct io_register *reg = NULL;
+ int i;
+ int load_reg_Num = 0;
+ int reg_value = 0;
+
+ if (lvds_setting_info.display_method == LCD_EXPANDSION) {
+ /* Expansion */
+ for (i = 12; i < 20; i++) {
+ switch (i) {
+ case H_TOTAL_SHADOW_INDEX:
+ reg_value =
+ IGA2_HOR_TOTAL_SHADOW_FORMULA
+ (panel_timing.hor_total);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.hor_total_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.hor_total_shadow.reg;
+ break;
+ case H_BLANK_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_HOR_BLANK_END_SHADOW_FORMULA
+ (panel_timing.hor_blank_start,
+ panel_timing.hor_blank_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ hor_blank_end_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ hor_blank_end_shadow.reg;
+ break;
+ case V_TOTAL_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_TOTAL_SHADOW_FORMULA
+ (panel_timing.ver_total);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_total_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.ver_total_shadow.reg;
+ break;
+ case V_ADDR_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_ADDR_SHADOW_FORMULA
+ (panel_timing.ver_addr);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_addr_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.ver_addr_shadow.reg;
+ break;
+ case V_BLANK_SATRT_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_BLANK_START_SHADOW_FORMULA
+ (panel_timing.ver_blank_start);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_blank_start_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_blank_start_shadow.reg;
+ break;
+ case V_BLANK_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_BLANK_END_SHADOW_FORMULA
+ (panel_timing.ver_blank_start,
+ panel_timing.ver_blank_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_blank_end_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_blank_end_shadow.reg;
+ break;
+ case V_SYNC_SATRT_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_SYNC_START_SHADOW_FORMULA
+ (panel_timing.ver_sync_start);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_sync_start_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_sync_start_shadow.reg;
+ break;
+ case V_SYNC_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_SYNC_END_SHADOW_FORMULA
+ (panel_timing.ver_sync_start,
+ panel_timing.ver_sync_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_sync_end_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_sync_end_shadow.reg;
+ break;
+ }
+ load_reg(reg_value, load_reg_Num, reg, VIACR);
+ }
+ } else { /* Centering */
+ for (i = 12; i < 20; i++) {
+ switch (i) {
+ case H_TOTAL_SHADOW_INDEX:
+ reg_value =
+ IGA2_HOR_TOTAL_SHADOW_FORMULA
+ (panel_timing.hor_total);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.hor_total_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.hor_total_shadow.reg;
+ break;
+ case H_BLANK_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_HOR_BLANK_END_SHADOW_FORMULA
+ (panel_timing.hor_blank_start,
+ panel_timing.hor_blank_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ hor_blank_end_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ hor_blank_end_shadow.reg;
+ break;
+ case V_TOTAL_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_TOTAL_SHADOW_FORMULA
+ (panel_timing.ver_total);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_total_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.ver_total_shadow.reg;
+ break;
+ case V_ADDR_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_ADDR_SHADOW_FORMULA
+ (mode_timing.ver_addr);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_addr_shadow.
+ reg_num;
+ reg = iga2_shadow_crtc_reg.ver_addr_shadow.reg;
+ break;
+ case V_BLANK_SATRT_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_BLANK_START_SHADOW_FORMULA
+ (mode_timing.ver_blank_start);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_blank_start_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_blank_start_shadow.reg;
+ break;
+ case V_BLANK_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_BLANK_END_SHADOW_FORMULA
+ (panel_timing.ver_blank_start,
+ panel_timing.ver_blank_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.
+ ver_blank_end_shadow.reg_num;
+ reg =
+ iga2_shadow_crtc_reg.
+ ver_blank_end_shadow.reg;
+ break;
+ case V_SYNC_SATRT_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_SYNC_START_SHADOW_FORMULA(
+ (panel_timing.ver_sync_start -
+ panel_timing.ver_blank_start) +
+ (panel_timing.ver_addr -
+ mode_timing.ver_addr) / 2 +
+ mode_timing.ver_addr);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_sync_start_shadow.
+ reg_num;
+ reg =
+ iga2_shadow_crtc_reg.ver_sync_start_shadow.
+ reg;
+ break;
+ case V_SYNC_END_SHADOW_INDEX:
+ reg_value =
+ IGA2_VER_SYNC_END_SHADOW_FORMULA(
+ (panel_timing.ver_sync_start -
+ panel_timing.ver_blank_start) +
+ (panel_timing.ver_addr -
+ mode_timing.ver_addr) / 2 +
+ mode_timing.ver_addr,
+ panel_timing.ver_sync_end);
+ load_reg_Num =
+ iga2_shadow_crtc_reg.ver_sync_end_shadow.
+ reg_num;
+ reg =
+ iga2_shadow_crtc_reg.ver_sync_end_shadow.
+ reg;
+ break;
+ }
+ load_reg(reg_value, load_reg_Num, reg, VIACR);
+ }
+ }
+}
+
+bool lcd_get_mobile_state(bool *mobile)
+{
+ unsigned char *romptr, *tableptr;
+ u8 core_base;
+ unsigned char *biosptr;
+ /* Rom address */
+ u32 romaddr = 0x000C0000;
+ u16 start_pattern = (u16) NULL;
+
+ biosptr = ioremap(romaddr, 0x10000);
+
+ memcpy(&start_pattern, biosptr, 2);
+ /* Compare pattern */
+ if (start_pattern == 0xAA55) {
+ /* Get the start of Table */
+ /* 0x1B means BIOS offset position */
+ romptr = biosptr + 0x1B;
+ tableptr = biosptr + *((u16 *) romptr);
+
+ /* Get the start of biosver structure */
+ /* 18 means BIOS version position. */
+ romptr = tableptr + 18;
+ romptr = biosptr + *((u16 *) romptr);
+
+ /* The offset should be 44, but the
+ actual image is less three char. */
+ /* pRom += 44; */
+ romptr += 41;
+
+ core_base = *romptr++;
+
+ if (core_base & 0x8)
+ *mobile = FALSE;
+ else
+ *mobile = TRUE;
+ /* release memory */
+ iounmap(biosptr);
+
+ return TRUE;
+ } else {
+ iounmap(biosptr);
+ return FALSE;
+ }
+}
+
+void load_scaling_factor_for_p4m900(int set_hres, int set_vres,
+ int panel_hres, int panel_vres)
+{
+ int h_scaling_factor;
+ int v_scaling_factor;
+ u8 cra2 = 0;
+ u8 cr77 = 0;
+ u8 cr78 = 0;
+ u8 cr79 = 0;
+ u8 cr9f = 0;
+ /* Check if expansion for horizontal */
+ if (set_hres < panel_hres) {
+ /* Load Horizontal Scaling Factor */
+
+ /* For VIA_K8M800 or later chipsets. */
+ h_scaling_factor =
+ K800_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
+ /* HSCaleFactor[1:0] at CR9F[1:0] */
+ cr9f = h_scaling_factor & 0x0003;
+ /* HSCaleFactor[9:2] at CR77[7:0] */
+ cr77 = (h_scaling_factor & 0x03FC) >> 2;
+ /* HSCaleFactor[11:10] at CR79[5:4] */
+ cr79 = (h_scaling_factor & 0x0C00) >> 10;
+ cr79 <<= 4;
+
+ /* Horizontal scaling enabled */
+ cra2 = 0xC0;
+
+ DEBUG_MSG(KERN_INFO "Horizontal Scaling value = %d\n",
+ h_scaling_factor);
+ } else {
+ /* Horizontal scaling disabled */
+ cra2 = 0x00;
+ }
+
+ /* Check if expansion for vertical */
+ if (set_vres < panel_vres) {
+ /* Load Vertical Scaling Factor */
+
+ /* For VIA_K8M800 or later chipsets. */
+ v_scaling_factor =
+ K800_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
+
+ /* Vertical scaling enabled */
+ cra2 |= 0x08;
+ /* VSCaleFactor[0] at CR79[3] */
+ cr79 |= ((v_scaling_factor & 0x0001) << 3);
+ /* VSCaleFactor[8:1] at CR78[7:0] */
+ cr78 |= (v_scaling_factor & 0x01FE) >> 1;
+ /* VSCaleFactor[10:9] at CR79[7:6] */
+ cr79 |= ((v_scaling_factor & 0x0600) >> 9) << 6;
+
+ DEBUG_MSG(KERN_INFO "Vertical Scaling value = %d\n",
+ v_scaling_factor);
+ } else {
+ /* Vertical scaling disabled */
+ cra2 |= 0x00;
+ }
+
+ write_reg_mask(CRA2, VIACR, cra2, BIT3 + BIT6 + BIT7);
+ write_reg_mask(CR77, VIACR, cr77, 0xFF);
+ write_reg_mask(CR78, VIACR, cr78, 0xFF);
+ write_reg_mask(CR79, VIACR, cr79, 0xF8);
+ write_reg_mask(CR9F, VIACR, cr9f, BIT0 + BIT1);
+}
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