Joseph Chan | 23966d5 | 2008-10-15 22:03:30 -0700 | [diff] [blame] | 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 | |
Jonathan Corbet | ec66841 | 2010-05-05 14:44:55 -0600 | [diff] [blame] | 22 | #include <linux/via-core.h> |
Joseph Chan | 23966d5 | 2008-10-15 22:03:30 -0700 | [diff] [blame] | 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 simultanous. */ |
| 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 | } |