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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | // 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 "global.h" void viafb_get_device_support_state(u32 *support_state) { *support_state = CRT_Device; if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name == VT1632_TMDS) *support_state |= DVI_Device; if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name == VT1631_LVDS) *support_state |= LCD_Device; } void viafb_get_device_connect_state(u32 *connect_state) { bool mobile = false; *connect_state = CRT_Device; if (viafb_dvi_sense()) *connect_state |= DVI_Device; viafb_lcd_get_mobile_state(&mobile); if (mobile) *connect_state |= LCD_Device; } bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres) { unsigned int support_state = 0; switch (viafb_lcd_panel_id) { case LCD_PANEL_ID0_640X480: if ((xres < 640) && (yres < 480)) support_state = true; break; case LCD_PANEL_ID1_800X600: if ((xres < 800) && (yres < 600)) support_state = true; break; case LCD_PANEL_ID2_1024X768: if ((xres < 1024) && (yres < 768)) support_state = true; break; case LCD_PANEL_ID3_1280X768: if ((xres < 1280) && (yres < 768)) support_state = true; break; case LCD_PANEL_ID4_1280X1024: if ((xres < 1280) && (yres < 1024)) support_state = true; break; case LCD_PANEL_ID5_1400X1050: if ((xres < 1400) && (yres < 1050)) support_state = true; break; case LCD_PANEL_ID6_1600X1200: if ((xres < 1600) && (yres < 1200)) support_state = true; break; case LCD_PANEL_ID7_1366X768: if ((xres < 1366) && (yres < 768)) support_state = true; break; case LCD_PANEL_ID8_1024X600: if ((xres < 1024) && (yres < 600)) support_state = true; break; case LCD_PANEL_ID9_1280X800: if ((xres < 1280) && (yres < 800)) support_state = true; break; case LCD_PANEL_IDA_800X480: if ((xres < 800) && (yres < 480)) support_state = true; break; case LCD_PANEL_IDB_1360X768: if ((xres < 1360) && (yres < 768)) support_state = true; break; case LCD_PANEL_IDC_480X640: if ((xres < 480) && (yres < 640)) support_state = true; break; default: support_state = false; break; } return support_state; } /*====================================================================*/ /* Gamma Function Implementation*/ /*====================================================================*/ void viafb_set_gamma_table(int bpp, unsigned int *gamma_table) { int i, sr1a; int active_device_amount = 0; int device_status = viafb_DeviceStatus; for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) { if (device_status & 1) active_device_amount++; device_status >>= 1; } /* 8 bpp mode can't adjust gamma */ if (bpp == 8) return ; /* Enable Gamma */ switch (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_CLE266: case UNICHROME_K400: viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); break; case UNICHROME_K800: case UNICHROME_PM800: case UNICHROME_CN700: case UNICHROME_CX700: case UNICHROME_K8M890: case UNICHROME_P4M890: case UNICHROME_P4M900: viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); break; } sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A); viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); /* Fill IGA1 Gamma Table */ outb(0, LUT_INDEX_WRITE); for (i = 0; i < 256; i++) { outb(gamma_table[i] >> 16, LUT_DATA); outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); outb(gamma_table[i] & 0xFF, LUT_DATA); } /* If adjust Gamma value in SAMM, fill IGA1, IGA2 Gamma table simultaneous. */ /* Switch to IGA2 Gamma Table */ if ((active_device_amount > 1) && !((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) && (viaparinfo->chip_info->gfx_chip_revision < 15))) { viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0); viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1); /* Fill IGA2 Gamma Table */ outb(0, LUT_INDEX_WRITE); for (i = 0; i < 256; i++) { outb(gamma_table[i] >> 16, LUT_DATA); outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); outb(gamma_table[i] & 0xFF, LUT_DATA); } } viafb_write_reg(SR1A, VIASR, sr1a); } void viafb_get_gamma_table(unsigned int *gamma_table) { unsigned char color_r, color_g, color_b; unsigned char sr1a = 0; int i; /* Enable Gamma */ switch (viaparinfo->chip_info->gfx_chip_name) { case UNICHROME_CLE266: case UNICHROME_K400: viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); break; case UNICHROME_K800: case UNICHROME_PM800: case UNICHROME_CN700: case UNICHROME_CX700: case UNICHROME_K8M890: case UNICHROME_P4M890: case UNICHROME_P4M900: viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); break; } sr1a = viafb_read_reg(VIASR, SR1A); viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); /* Reading gamma table to get color value */ outb(0, LUT_INDEX_READ); for (i = 0; i < 256; i++) { color_r = inb(LUT_DATA); color_g = inb(LUT_DATA); color_b = inb(LUT_DATA); gamma_table[i] = ((((u32) color_r) << 16) | (((u16) color_g) << 8)) | color_b; } viafb_write_reg(SR1A, VIASR, sr1a); } void viafb_get_gamma_support_state(int bpp, unsigned int *support_state) { if (bpp == 8) *support_state = None_Device; else *support_state = CRT_Device | DVI_Device | LCD_Device; } |