1 /* 2 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved. 3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. 4 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public 7 * License as published by the Free Software Foundation; 8 * either version 2, or (at your option) any later version. 9 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even 12 * the implied warranty of MERCHANTABILITY or FITNESS FOR 13 * A PARTICULAR PURPOSE.See the GNU General Public License 14 * for more details. 15 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 20 */ 21 22 #include <linux/via-core.h> 23 #include "global.h" 24 25 void viafb_get_device_support_state(u32 *support_state) 26 { 27 *support_state = CRT_Device; 28 29 if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name == VT1632_TMDS) 30 *support_state |= DVI_Device; 31 32 if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name == VT1631_LVDS) 33 *support_state |= LCD_Device; 34 } 35 36 void viafb_get_device_connect_state(u32 *connect_state) 37 { 38 bool mobile = false; 39 40 *connect_state = CRT_Device; 41 42 if (viafb_dvi_sense()) 43 *connect_state |= DVI_Device; 44 45 viafb_lcd_get_mobile_state(&mobile); 46 if (mobile) 47 *connect_state |= LCD_Device; 48 } 49 50 bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres) 51 { 52 unsigned int support_state = 0; 53 54 switch (viafb_lcd_panel_id) { 55 case LCD_PANEL_ID0_640X480: 56 if ((xres < 640) && (yres < 480)) 57 support_state = true; 58 break; 59 60 case LCD_PANEL_ID1_800X600: 61 if ((xres < 800) && (yres < 600)) 62 support_state = true; 63 break; 64 65 case LCD_PANEL_ID2_1024X768: 66 if ((xres < 1024) && (yres < 768)) 67 support_state = true; 68 break; 69 70 case LCD_PANEL_ID3_1280X768: 71 if ((xres < 1280) && (yres < 768)) 72 support_state = true; 73 break; 74 75 case LCD_PANEL_ID4_1280X1024: 76 if ((xres < 1280) && (yres < 1024)) 77 support_state = true; 78 break; 79 80 case LCD_PANEL_ID5_1400X1050: 81 if ((xres < 1400) && (yres < 1050)) 82 support_state = true; 83 break; 84 85 case LCD_PANEL_ID6_1600X1200: 86 if ((xres < 1600) && (yres < 1200)) 87 support_state = true; 88 break; 89 90 case LCD_PANEL_ID7_1366X768: 91 if ((xres < 1366) && (yres < 768)) 92 support_state = true; 93 break; 94 95 case LCD_PANEL_ID8_1024X600: 96 if ((xres < 1024) && (yres < 600)) 97 support_state = true; 98 break; 99 100 case LCD_PANEL_ID9_1280X800: 101 if ((xres < 1280) && (yres < 800)) 102 support_state = true; 103 break; 104 105 case LCD_PANEL_IDA_800X480: 106 if ((xres < 800) && (yres < 480)) 107 support_state = true; 108 break; 109 110 case LCD_PANEL_IDB_1360X768: 111 if ((xres < 1360) && (yres < 768)) 112 support_state = true; 113 break; 114 115 case LCD_PANEL_IDC_480X640: 116 if ((xres < 480) && (yres < 640)) 117 support_state = true; 118 break; 119 120 default: 121 support_state = false; 122 break; 123 } 124 125 return support_state; 126 } 127 128 /*====================================================================*/ 129 /* Gamma Function Implementation*/ 130 /*====================================================================*/ 131 132 void viafb_set_gamma_table(int bpp, unsigned int *gamma_table) 133 { 134 int i, sr1a; 135 int active_device_amount = 0; 136 int device_status = viafb_DeviceStatus; 137 138 for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) { 139 if (device_status & 1) 140 active_device_amount++; 141 device_status >>= 1; 142 } 143 144 /* 8 bpp mode can't adjust gamma */ 145 if (bpp == 8) 146 return ; 147 148 /* Enable Gamma */ 149 switch (viaparinfo->chip_info->gfx_chip_name) { 150 case UNICHROME_CLE266: 151 case UNICHROME_K400: 152 viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); 153 break; 154 155 case UNICHROME_K800: 156 case UNICHROME_PM800: 157 case UNICHROME_CN700: 158 case UNICHROME_CX700: 159 case UNICHROME_K8M890: 160 case UNICHROME_P4M890: 161 case UNICHROME_P4M900: 162 viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); 163 break; 164 } 165 sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A); 166 viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); 167 168 /* Fill IGA1 Gamma Table */ 169 outb(0, LUT_INDEX_WRITE); 170 for (i = 0; i < 256; i++) { 171 outb(gamma_table[i] >> 16, LUT_DATA); 172 outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); 173 outb(gamma_table[i] & 0xFF, LUT_DATA); 174 } 175 176 /* If adjust Gamma value in SAMM, fill IGA1, 177 IGA2 Gamma table simultaneous. */ 178 /* Switch to IGA2 Gamma Table */ 179 if ((active_device_amount > 1) && 180 !((viaparinfo->chip_info->gfx_chip_name == 181 UNICHROME_CLE266) && 182 (viaparinfo->chip_info->gfx_chip_revision < 15))) { 183 viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0); 184 viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1); 185 186 /* Fill IGA2 Gamma Table */ 187 outb(0, LUT_INDEX_WRITE); 188 for (i = 0; i < 256; i++) { 189 outb(gamma_table[i] >> 16, LUT_DATA); 190 outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); 191 outb(gamma_table[i] & 0xFF, LUT_DATA); 192 } 193 } 194 viafb_write_reg(SR1A, VIASR, sr1a); 195 } 196 197 void viafb_get_gamma_table(unsigned int *gamma_table) 198 { 199 unsigned char color_r, color_g, color_b; 200 unsigned char sr1a = 0; 201 int i; 202 203 /* Enable Gamma */ 204 switch (viaparinfo->chip_info->gfx_chip_name) { 205 case UNICHROME_CLE266: 206 case UNICHROME_K400: 207 viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); 208 break; 209 210 case UNICHROME_K800: 211 case UNICHROME_PM800: 212 case UNICHROME_CN700: 213 case UNICHROME_CX700: 214 case UNICHROME_K8M890: 215 case UNICHROME_P4M890: 216 case UNICHROME_P4M900: 217 viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); 218 break; 219 } 220 sr1a = viafb_read_reg(VIASR, SR1A); 221 viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); 222 223 /* Reading gamma table to get color value */ 224 outb(0, LUT_INDEX_READ); 225 for (i = 0; i < 256; i++) { 226 color_r = inb(LUT_DATA); 227 color_g = inb(LUT_DATA); 228 color_b = inb(LUT_DATA); 229 gamma_table[i] = 230 ((((u32) color_r) << 16) | 231 (((u16) color_g) << 8)) | color_b; 232 } 233 viafb_write_reg(SR1A, VIASR, sr1a); 234 } 235 236 void viafb_get_gamma_support_state(int bpp, unsigned int *support_state) 237 { 238 if (bpp == 8) 239 *support_state = None_Device; 240 else 241 *support_state = CRT_Device | DVI_Device | LCD_Device; 242 } 243