// SPDX-License-Identifier: GPL-2.0-or-later/* * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved. * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. */#include <linux/via-core.h>#include <linux/via_i2c.h>#include "global.h" #define viafb_compact_res(x, y) (((x)<<16)|(y)) /* CLE266 Software Power Sequence *//* {Mask}, {Data}, {Delay} */static const int PowerSequenceOn[3][3] = { {0x10, 0x08, 0x06}, {0x10, 0x08, 0x06}, {0x19, 0x1FE, 0x01}};static const int PowerSequenceOff[3][3] = { {0x06, 0x08, 0x10}, {0x00, 0x00, 0x00}, {0xD2, 0x19, 0x01}}; 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 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 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 inline bool check_lvds_chip(int device_id_subaddr, int device_id){ return lvds_register_read(device_id_subaddr) == device_id;} void viafb_init_lcd_size(void){ DEBUG_MSG(KERN_INFO "viafb_init_lcd_size()\n"); fp_id_to_vindex(viafb_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;} bool viafb_lvds_trasmitter_identify(void){ if (viafb_lvds_identify_vt1636(VIA_PORT_31)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_31; DEBUG_MSG(KERN_INFO "Found VIA VT1636 LVDS on port i2c 0x31\n"); } else { if (viafb_lvds_identify_vt1636(VIA_PORT_2C)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_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_target_addr = VT1631_LVDS_I2C_ADDR; if (check_lvds_chip(VT1631_DEVICE_ID_REG, VT1631_DEVICE_ID)) { 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 true; } viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = NON_LVDS_TRANSMITTER; viaparinfo->chip_info->lvds_chip_info.lvds_chip_target_addr = VT1631_LVDS_I2C_ADDR; return false;} 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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; }} static int lvds_register_read(int index){ u8 data; viafb_i2c_readbyte(VIA_PORT_2C, (u8) viaparinfo->chip_info->lvds_chip_info.lvds_chip_target_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); /* 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: case UNICHROME_P4M900: case UNICHROME_CN750: case UNICHROME_VX800: case UNICHROME_VX855: case UNICHROME_VX900: 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: case UNICHROME_P4M900: case UNICHROME_CN750: case UNICHROME_VX800: case UNICHROME_VX855: case UNICHROME_VX900: 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(int iga_path, int hres, int bpp){ unsigned char cr13, cr35, cr65, cr66, cr67; unsigned long dwScreenPitch = 0; unsigned long dwPitch; dwPitch = hres * (bpp >> 3); if (dwPitch & 0x1F) { dwScreenPitch = ((dwPitch + 31) & ~31) >> 3; if (iga_path == IGA2) { if (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 (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,Lines 1–500 of 993. Load more
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved. * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. */ #include <linux/via-core.h> #include <linux/via_i2c.h> #include "global.h" #define viafb_compact_res(x, y) (((x)<<16)|(y)) /* CLE266 Software Power Sequence */ /* {Mask}, {Data}, {Delay} */ static const int PowerSequenceOn[3][3] = { {0x10, 0x08, 0x06}, {0x10, 0x08, 0x06}, {0x19, 0x1FE, 0x01} }; static const int PowerSequenceOff[3][3] = { {0x06, 0x08, 0x10}, {0x00, 0x00, 0x00}, {0xD2, 0x19, 0x01} }; 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 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 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 inline bool check_lvds_chip(int device_id_subaddr, int device_id) { return lvds_register_read(device_id_subaddr) == device_id; } void viafb_init_lcd_size(void) { DEBUG_MSG(KERN_INFO "viafb_init_lcd_size()\n"); fp_id_to_vindex(viafb_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; } bool viafb_lvds_trasmitter_identify(void) { if (viafb_lvds_identify_vt1636(VIA_PORT_31)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_31; DEBUG_MSG(KERN_INFO "Found VIA VT1636 LVDS on port i2c 0x31\n"); } else { if (viafb_lvds_identify_vt1636(VIA_PORT_2C)) { viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_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_target_addr = VT1631_LVDS_I2C_ADDR; if (check_lvds_chip(VT1631_DEVICE_ID_REG, VT1631_DEVICE_ID)) { 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 true; } viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = NON_LVDS_TRANSMITTER; viaparinfo->chip_info->lvds_chip_info.lvds_chip_target_addr = VT1631_LVDS_I2C_ADDR; return false; } 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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->device_lcd_dualedge = 0; viaparinfo->lvds_setting_info->LCDDithering = 1; } } static int lvds_register_read(int index) { u8 data; viafb_i2c_readbyte(VIA_PORT_2C, (u8) viaparinfo->chip_info->lvds_chip_info.lvds_chip_target_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); /* 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: case UNICHROME_P4M900: case UNICHROME_CN750: case UNICHROME_VX800: case UNICHROME_VX855: case UNICHROME_VX900: 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: case UNICHROME_P4M900: case UNICHROME_CN750: case UNICHROME_VX800: case UNICHROME_VX855: case UNICHROME_VX900: 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(int iga_path, int hres, int bpp) { unsigned char cr13, cr35, cr65, cr66, cr67; unsigned long dwScreenPitch = 0; unsigned long dwPitch; dwPitch = hres * (bpp >> 3); if (dwPitch & 0x1F) { dwScreenPitch = ((dwPitch + 31) & ~31) >> 3; if (iga_path == IGA2) { if (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 (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,