/* * 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" #define viafb_compact_res(x, y) (((x)<<16)|(y)) static 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} } } }; static 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} } } }; static int check_lvds_chip(int device_id_subaddr, int device_id); static bool lvds_identify_integratedlvds(void); static void fp_id_to_vindex(int panel_id); static int lvds_register_read(int index); static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres, int panel_vres); static void via_pitch_alignment_patch_lcd( struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void lcd_patch_skew_dvp0(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void lcd_patch_skew_dvp1(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void lcd_patch_skew(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void integrated_lvds_disable(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void integrated_lvds_enable(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info); static void lcd_powersequence_off(void); static void lcd_powersequence_on(void); static void fill_lcd_format(void); static void check_diport_of_integrated_lvds( struct lvds_chip_information *plvds_chip_info, struct lvds_setting_information *plvds_setting_info); static struct display_timing lcd_centering_timging(struct display_timing mode_crt_reg, struct display_timing panel_crt_reg); static void viafb_load_scaling_factor_for_p4m900(int set_hres, int set_vres, int panel_hres, int panel_vres); static 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 viafb_init_lcd_size(void) { DEBUG_MSG(KERN_INFO "viafb_init_lcd_size()\n"); DEBUG_MSG(KERN_INFO "viaparinfo->lvds_setting_info->get_lcd_size_method %d\n", viaparinfo->lvds_setting_info->get_lcd_size_method); switch (viaparinfo->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"); fp_id_to_vindex(viafb_lcd_panel_id); DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n", viaparinfo->lvds_setting_info->lcd_panel_id); break; case GET_LCD_SIZE_BY_USER_SETTING: DEBUG_MSG(KERN_INFO "Get LCD Size method by user setting !!\n"); fp_id_to_vindex(viafb_lcd_panel_id); DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n", viaparinfo->lvds_setting_info->lcd_panel_id); break; default: DEBUG_MSG(KERN_INFO "viafb_init_lcd_size fail\n"); viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID1_800X600; fp_id_to_vindex(LCD_PANEL_ID1_800X600); } viaparinfo->lvds_setting_info2->lcd_panel_id = viaparinfo->lvds_setting_info->lcd_panel_id; viaparinfo->lvds_setting_info2->lcd_panel_hres = viaparinfo->lvds_setting_info->lcd_panel_hres; viaparinfo->lvds_setting_info2->lcd_panel_vres = viaparinfo->lvds_setting_info->lcd_panel_vres; viaparinfo->lvds_setting_info2->device_lcd_dualedge = viaparinfo->lvds_setting_info->device_lcd_dualedge; viaparinfo->lvds_setting_info2->LCDDithering = viaparinfo->lvds_setting_info->LCDDithering; } static bool lvds_identify_integratedlvds(void) { if (viafb_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 (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) { viaparinfo->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 { viaparinfo->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 (viafb_display_hardware_layout == HW_LAYOUT_LCD1_LCD2) { /* Two single channel LCD (Internal LVDS + Internal LVDS): */ viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = INTEGRATED_LVDS; viaparinfo->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 (viafb_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 (!viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) { viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = INTEGRATED_LVDS; DEBUG_MSG(KERN_INFO "Found Integrated LVDS!\n"); } } else { viaparinfo->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 viafb_lvds_trasmitter_identify(void) { if (viafb_lvds_identify_vt1636(VIA_I2C_ADAP_31)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_I2C_ADAP_31; DEBUG_MSG(KERN_INFO "Found VIA VT1636 LVDS on port i2c 0x31\n"); } else { if (viafb_lvds_identify_vt1636(VIA_I2C_ADAP_2C)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_I2C_ADAP_2C; DEBUG_MSG(KERN_INFO "Found VIA VT1636 LVDS on port gpio 0x2c\n"); } } if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) lvds_identify_integratedlvds(); if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) return true; /* Check for VT1631: */ viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = VT1631_LVDS; viaparinfo->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", viaparinfo->chip_info->lvds_chip_info.lvds_chip_name); DEBUG_MSG(KERN_INFO "\n %2d", viaparinfo->chip_info->lvds_chip_info.lvds_chip_name); return OK; } viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = NON_LVDS_TRANSMITTER; viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr = VT1631_LVDS_I2C_ADDR; return FAIL; } static void fp_id_to_vindex(int panel_id) { DEBUG_MSG(KERN_INFO "fp_get_panel_id()\n"); if (panel_id > LCD_PANEL_ID_MAXIMUM) viafb_lcd_panel_id = panel_id = viafb_read_reg(VIACR, CR3F) & 0x0F; switch (panel_id) { case 0x0: viaparinfo->lvds_setting_info->lcd_panel_hres = 640; viaparinfo->lvds_setting_info->lcd_panel_vres = 480; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID0_640X480; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x1: viaparinfo->lvds_setting_info->lcd_panel_hres = 800; viaparinfo->lvds_setting_info->lcd_panel_vres = 600; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID1_800X600; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x2: viaparinfo->lvds_setting_info->lcd_panel_hres = 1024; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID2_1024X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x3: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID3_1280X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x4: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 1024; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID4_1280X1024; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x5: viaparinfo->lvds_setting_info->lcd_panel_hres = 1400; viaparinfo->lvds_setting_info->lcd_panel_vres = 1050; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID5_1400X1050; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x6: viaparinfo->lvds_setting_info->lcd_panel_hres = 1600; viaparinfo->lvds_setting_info->lcd_panel_vres = 1200; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID6_1600X1200; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x8: viaparinfo->lvds_setting_info->lcd_panel_hres = 800; viaparinfo->lvds_setting_info->lcd_panel_vres = 480; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_IDA_800X480; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x9: viaparinfo->lvds_setting_info->lcd_panel_hres = 1024; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID2_1024X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0xA: viaparinfo->lvds_setting_info->lcd_panel_hres = 1024; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID2_1024X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0xB: viaparinfo->lvds_setting_info->lcd_panel_hres = 1024; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID2_1024X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0xC: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID3_1280X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0xD: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 1024; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID4_1280X1024; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0xE: viaparinfo->lvds_setting_info->lcd_panel_hres = 1400; viaparinfo->lvds_setting_info->lcd_panel_vres = 1050; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID5_1400X1050; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0xF: viaparinfo->lvds_setting_info->lcd_panel_hres = 1600; viaparinfo->lvds_setting_info->lcd_panel_vres = 1200; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID6_1600X1200; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0x10: viaparinfo->lvds_setting_info->lcd_panel_hres = 1366; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID7_1366X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0x11: viaparinfo->lvds_setting_info->lcd_panel_hres = 1024; viaparinfo->lvds_setting_info->lcd_panel_vres = 600; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID8_1024X600; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x12: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID3_1280X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x13: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 800; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID9_1280X800; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x14: viaparinfo->lvds_setting_info->lcd_panel_hres = 1360; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_IDB_1360X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0x15: viaparinfo->lvds_setting_info->lcd_panel_hres = 1280; viaparinfo->lvds_setting_info->lcd_panel_vres = 768; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID3_1280X768; viaparinfo->lvds_setting_info->device_lcd_dualedge = 1; viaparinfo->lvds_setting_info->LCDDithering = 0; break; case 0x16: viaparinfo->lvds_setting_info->lcd_panel_hres = 480; viaparinfo->lvds_setting_info->lcd_panel_vres = 640; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_IDC_480X640; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; break; case 0x17: /* OLPC XO-1.5 panel */ viaparinfo->lvds_setting_info->lcd_panel_hres = 1200; viaparinfo->lvds_setting_info->lcd_panel_vres = 900; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_IDD_1200X900; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 0; break; default: viaparinfo->lvds_setting_info->lcd_panel_hres = 800; viaparinfo->lvds_setting_info->lcd_panel_vres = 600; viaparinfo->lvds_setting_info->lcd_panel_id = LCD_PANEL_ID1_800X600; viaparinfo->lvds_setting_info->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; } } static int lvds_register_read(int index) { u8 data; viafb_i2c_readbyte(VIA_I2C_ADAP_2C, (u8) viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr, (u8) index, &data); return data; } static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres, int panel_vres) { int reg_value = 0; int viafb_load_reg_num; struct io_register *reg = NULL; DEBUG_MSG(KERN_INFO "load_lcd_scaling()!!\n"); /* LCD Scaling Enable */ viafb_write_reg_mask(CR79, VIACR, 0x07, BIT0 + BIT1 + BIT2); if (UNICHROME_P4M900 == viaparinfo->chip_info->gfx_chip_name) { viafb_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 (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_CLE266: case UNICHROME_K400: reg_value = CLE266_LCD_HOR_SCF_FORMULA(set_hres, panel_hres); viafb_load_reg_num = lcd_scaling_factor_CLE.lcd_hor_scaling_factor. reg_num; reg = lcd_scaling_factor_CLE.lcd_hor_scaling_factor.reg; viafb_load_reg(reg_value, viafb_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 */ viafb_write_reg_mask(CRA2, VIACR, 0xC0, BIT7 + BIT6); viafb_load_reg_num = lcd_scaling_factor.lcd_hor_scaling_factor.reg_num; reg = lcd_scaling_factor.lcd_hor_scaling_factor.reg; viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); break; } DEBUG_MSG(KERN_INFO "Horizontal Scaling value = %d", reg_value); } else { /* Horizontal scaling disabled */ viafb_write_reg_mask(CRA2, VIACR, 0x00, BIT7); } /* Check if expansion for vertical */ if (set_vres != panel_vres) { /* Load Vertical Scaling Factor */ switch (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_CLE266: case UNICHROME_K400: reg_value = CLE266_LCD_VER_SCF_FORMULA(set_vres, panel_vres); viafb_load_reg_num = lcd_scaling_factor_CLE.lcd_ver_scaling_factor. reg_num; reg = lcd_scaling_factor_CLE.lcd_ver_scaling_factor.reg; viafb_load_reg(reg_value, viafb_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 */ viafb_write_reg_mask(CRA2, VIACR, 0x08, BIT3); viafb_load_reg_num = lcd_scaling_factor.lcd_ver_scaling_factor.reg_num; reg = lcd_scaling_factor.lcd_ver_scaling_factor.reg; viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); break; } DEBUG_MSG(KERN_INFO "Vertical Scaling value = %d", reg_value); } else { /* Vertical scaling disabled */ viafb_write_reg_mask(CRA2, VIACR, 0x00, BIT3); } } static 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); viafb_write_reg(CR66, VIACR, cr66); cr67 = viafb_read_reg(VIACR, CR67) & 0xFC; cr67 |= (unsigned char)((dwScreenPitch & 0x300) >> 8); viafb_write_reg(CR67, VIACR, cr67); } /* Fetch Count */ cr67 = viafb_read_reg(VIACR, CR67) & 0xF3; cr67 |= (unsigned char)((dwScreenPitch & 0x600) >> 7); viafb_write_reg(CR67, VIACR, cr67); cr65 = (unsigned char)((dwScreenPitch >> 1) & 0xFF); cr65 += 2; viafb_write_reg(CR65, VIACR, cr65); } else { if (plvds_setting_info->bpp > 8) { cr13 = (unsigned char)(dwScreenPitch & 0xFF); viafb_write_reg(CR13, VIACR, cr13); cr35 = viafb_read_reg(VIACR, CR35) & 0x1F; cr35 |= (unsigned char)((dwScreenPitch & 0x700) >> 3); viafb_write_reg(CR35, VIACR, cr35); } } } } static 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 (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_P4M900: viafb_vt1636_patch_skew_on_vt3364(plvds_setting_info, plvds_chip_info); break; case UNICHROME_P4M890: viafb_vt1636_patch_skew_on_vt3327(plvds_setting_info, plvds_chip_info); break; } } } static 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 (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_CX700: viafb_vt1636_patch_skew_on_vt3324(plvds_setting_info, plvds_chip_info); break; } } } static 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 == viaparinfo->chip_info->gfx_chip_name) { viafb_write_reg_mask(CR99, VIACR, 0x08, BIT0 + BIT1 + BIT2 + BIT3); } break; } } /* LCD Set Mode */ void viafb_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 set_iga = plvds_setting_info->iga_path; int mode_bpp = plvds_setting_info->bpp; int set_hres = plvds_setting_info->h_active; int set_vres = plvds_setting_info->v_active; int panel_hres = plvds_setting_info->lcd_panel_hres; int panel_vres = plvds_setting_info->lcd_panel_vres; u32 pll_D_N; struct display_timing mode_crt_reg, panel_crt_reg; struct crt_mode_table *panel_crt_table = NULL; struct VideoModeTable *vmode_tbl = viafb_get_mode(panel_hres, panel_vres); DEBUG_MSG(KERN_INFO "viafb_lcd_set_mode!!\n"); /* Get mode table */ mode_crt_reg = mode_crt_table->crtc; /* Get panel table Pointer */ panel_crt_table = vmode_tbl->crtc; panel_crt_reg = panel_crt_table->crtc; DEBUG_MSG(KERN_INFO "bellow viafb_lcd_set_mode!!\n"); if (VT1636_LVDS == plvds_chip_info->lvds_chip_name) viafb_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. */ viafb_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*/ viafb_load_crtc_timing(panel_crt_reg, IGA2); DEBUG_MSG(KERN_INFO "viafb_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 */ viafb_load_crtc_timing(lcd_centering_timging (mode_crt_reg, panel_crt_reg), IGA2); viafb_write_reg_mask(CR79, VIACR, 0x00, BIT0 + BIT1 + BIT2); /* LCD scaling disabled */ } } /* Fetch count for IGA2 only */ viafb_load_fetch_count_reg(set_hres, mode_bpp / 8, set_iga); if ((viaparinfo->chip_info->gfx_chip_name != UNICHROME_CLE266) && (viaparinfo->chip_info->gfx_chip_name != UNICHROME_K400)) viafb_load_FIFO_reg(set_iga, set_hres, set_vres); fill_lcd_format(); pll_D_N = viafb_get_clk_value(panel_crt_table[0].clk); DEBUG_MSG(KERN_INFO "PLL=0x%x", pll_D_N); viafb_set_vclock(pll_D_N, set_iga); viafb_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 ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) || (UNICHROME_K8M890 == viaparinfo->chip_info->gfx_chip_name)) viafb_write_reg_mask(CR6A, VIACR, 0x01, BIT0); /* Patch for non 32bit alignment mode */ via_pitch_alignment_patch_lcd(plvds_setting_info, plvds_chip_info); } static 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. */ viafb_write_reg_mask(CRD4, VIACR, 0, BIT1); /* Turn off back light. */ viafb_write_reg_mask(CRD3, VIACR, 0xC0, BIT6 + BIT7); } if (turn_off_first_powersequence) { /* Use first power sequence control: */ /* Turn off power sequence. */ viafb_write_reg_mask(CR6A, VIACR, 0, BIT3); /* Turn off back light. */ viafb_write_reg_mask(CR91, VIACR, 0xC0, BIT6 + BIT7); } /* Turn DFP High/Low Pad off. */ viafb_write_reg_mask(SR2A, VIASR, 0, BIT0 + BIT1 + BIT2 + BIT3); /* Power off LVDS channel. */ switch (plvds_chip_info->output_interface) { case INTERFACE_LVDS0: { viafb_write_reg_mask(CRD2, VIACR, 0x80, BIT7); break; } case INTERFACE_LVDS1: { viafb_write_reg_mask(CRD2, VIACR, 0x40, BIT6); break; } case INTERFACE_LVDS0LVDS1: { viafb_write_reg_mask(CRD2, VIACR, 0xC0, BIT6 + BIT7); break; } } } static void integrated_lvds_enable(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info) { DEBUG_MSG(KERN_INFO "integrated_lvds_enable, out_interface:%d\n", plvds_chip_info->output_interface); if (plvds_setting_info->lcd_mode == LCD_SPWG) viafb_write_reg_mask(CRD2, VIACR, 0x00, BIT0 + BIT1); else viafb_write_reg_mask(CRD2, VIACR, 0x03, BIT0 + BIT1); switch (plvds_chip_info->output_interface) { case INTERFACE_LVDS0LVDS1: case INTERFACE_LVDS0: /* Use first power sequence control: */ /* Use hardware control power sequence. */ viafb_write_reg_mask(CR91, VIACR, 0, BIT0); /* Turn on back light. */ viafb_write_reg_mask(CR91, VIACR, 0, BIT6 + BIT7); /* Turn on hardware power sequence. */ viafb_write_reg_mask(CR6A, VIACR, 0x08, BIT3); break; case INTERFACE_LVDS1: /* Use second power sequence control: */ /* Use hardware control power sequence. */ viafb_write_reg_mask(CRD3, VIACR, 0, BIT0); /* Turn on back light. */ viafb_write_reg_mask(CRD3, VIACR, 0, BIT6 + BIT7); /* Turn on hardware power sequence. */ viafb_write_reg_mask(CRD4, VIACR, 0x02, BIT1); break; } /* Turn DFP High/Low pad on. */ viafb_write_reg_mask(SR2A, VIASR, 0x0F, BIT0 + BIT1 + BIT2 + BIT3); /* Power on LVDS channel. */ switch (plvds_chip_info->output_interface) { case INTERFACE_LVDS0: { viafb_write_reg_mask(CRD2, VIACR, 0, BIT7); break; } case INTERFACE_LVDS1: { viafb_write_reg_mask(CRD2, VIACR, 0, BIT6); break; } case INTERFACE_LVDS0LVDS1: { viafb_write_reg_mask(CRD2, VIACR, 0, BIT6 + BIT7); break; } } } void viafb_lcd_disable(void) { if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) { lcd_powersequence_off(); /* DI1 pad off */ viafb_write_reg_mask(SR1E, VIASR, 0x00, 0x30); } else if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) { if (viafb_LCD2_ON && (INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name)) integrated_lvds_disable(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info2); if (INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) integrated_lvds_disable(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); if (VT1636_LVDS == viaparinfo->chip_info-> lvds_chip_info.lvds_chip_name) viafb_disable_lvds_vt1636(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); } else if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) { viafb_disable_lvds_vt1636(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); } else { /* DFP-HL pad off */ viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x0F); /* Backlight off */ viafb_write_reg_mask(SR3D, VIASR, 0x00, 0x20); /* 24 bit DI data paht off */ viafb_write_reg_mask(CR91, VIACR, 0x80, 0x80); /* Simultaneout disabled */ viafb_write_reg_mask(CR6B, VIACR, 0x00, 0x08); } /* Disable expansion bit */ viafb_write_reg_mask(CR79, VIACR, 0x00, 0x01); /* CRT path set to IGA1 */ viafb_write_reg_mask(SR16, VIASR, 0x00, 0x40); /* Simultaneout disabled */ viafb_write_reg_mask(CR6B, VIACR, 0x00, 0x08); /* IGA2 path disabled */ viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x80); } void viafb_lcd_enable(void) { if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) { /* DI1 pad on */ viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30); lcd_powersequence_on(); } else if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) { if (viafb_LCD2_ON && (INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name)) integrated_lvds_enable(viaparinfo->lvds_setting_info2, \ &viaparinfo->chip_info->lvds_chip_info2); if (INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) integrated_lvds_enable(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); if (VT1636_LVDS == viaparinfo->chip_info-> lvds_chip_info.lvds_chip_name) viafb_enable_lvds_vt1636(viaparinfo-> lvds_setting_info, &viaparinfo->chip_info-> lvds_chip_info); } else if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) { viafb_enable_lvds_vt1636(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); } else { /* DFP-HL pad on */ viafb_write_reg_mask(SR2A, VIASR, 0x0F, 0x0F); /* Backlight on */ viafb_write_reg_mask(SR3D, VIASR, 0x20, 0x20); /* 24 bit DI data paht on */ viafb_write_reg_mask(CR91, VIACR, 0x00, 0x80); /* Set data source selection bit by iga path */ if (viaparinfo->lvds_setting_info->iga_path == IGA1) { /* DFP-H set to IGA1 */ viafb_write_reg_mask(CR97, VIACR, 0x00, 0x10); /* DFP-L set to IGA1 */ viafb_write_reg_mask(CR99, VIACR, 0x00, 0x10); } else { /* DFP-H set to IGA2 */ viafb_write_reg_mask(CR97, VIACR, 0x10, 0x10); /* DFP-L set to IGA2 */ viafb_write_reg_mask(CR99, VIACR, 0x10, 0x10); } /* LCD enabled */ viafb_write_reg_mask(CR6A, VIACR, 0x48, 0x48); } if (viaparinfo->lvds_setting_info->iga_path == IGA1) { /* CRT path set to IGA2 */ viafb_write_reg_mask(SR16, VIASR, 0x40, 0x40); /* IGA2 path disabled */ viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x80); /* IGA2 path enabled */ } else { /* IGA2 */ viafb_write_reg_mask(CR6A, VIACR, 0x80, 0x80); } } static void lcd_powersequence_off(void) { int i, mask, data; /* Software control power sequence */ viafb_write_reg_mask(CR91, VIACR, 0x11, 0x11); for (i = 0; i < 3; i++) { mask = PowerSequenceOff[0][i]; data = PowerSequenceOff[1][i] & mask; viafb_write_reg_mask(CR91, VIACR, (u8) data, (u8) mask); udelay(PowerSequenceOff[2][i]); } /* Disable LCD */ viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x08); } static void lcd_powersequence_on(void) { int i, mask, data; /* Software control power sequence */ viafb_write_reg_mask(CR91, VIACR, 0x11, 0x11); /* Enable LCD */ viafb_write_reg_mask(CR6A, VIACR, 0x08, 0x08); for (i = 0; i < 3; i++) { mask = PowerSequenceOn[0][i]; data = PowerSequenceOn[1][i] & mask; viafb_write_reg_mask(CR91, VIACR, (u8) data, (u8) mask); udelay(PowerSequenceOn[2][i]); } udelay(1); } static void fill_lcd_format(void) { u8 bdithering = 0, bdual = 0; if (viaparinfo->lvds_setting_info->device_lcd_dualedge) bdual = BIT4; if (viaparinfo->lvds_setting_info->LCDDithering) bdithering = BIT0; /* Dual & Dithering */ viafb_write_reg_mask(CR88, VIACR, (bdithering | bdual), BIT4 + BIT0); } static 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 (viafb_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", viafb_display_hardware_layout, plvds_chip_info->output_interface); } void viafb_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 (viaparinfo->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 (viaparinfo->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; } } static 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; } bool viafb_lcd_get_mobile_state(bool *mobile) { unsigned char *romptr, *tableptr; u8 core_base; unsigned char *biosptr; /* Rom address */ u32 romaddr = 0x000C0000; u16 start_pattern = 0; 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; } } static void viafb_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; } viafb_write_reg_mask(CRA2, VIACR, cra2, BIT3 + BIT6 + BIT7); viafb_write_reg_mask(CR77, VIACR, cr77, 0xFF); viafb_write_reg_mask(CR78, VIACR, cr78, 0xFF); viafb_write_reg_mask(CR79, VIACR, cr79, 0xF8); viafb_write_reg_mask(CR9F, VIACR, cr9f, BIT0 + BIT1); }