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228 lines
5.2 KiB
228 lines
5.2 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved. |
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. |
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*/ |
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#include <linux/via-core.h> |
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#include "global.h" |
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void viafb_get_device_support_state(u32 *support_state) |
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{ |
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*support_state = CRT_Device; |
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if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name == VT1632_TMDS) |
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*support_state |= DVI_Device; |
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if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name == VT1631_LVDS) |
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*support_state |= LCD_Device; |
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} |
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void viafb_get_device_connect_state(u32 *connect_state) |
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{ |
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bool mobile = false; |
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*connect_state = CRT_Device; |
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if (viafb_dvi_sense()) |
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*connect_state |= DVI_Device; |
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viafb_lcd_get_mobile_state(&mobile); |
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if (mobile) |
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*connect_state |= LCD_Device; |
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} |
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bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres) |
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{ |
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unsigned int support_state = 0; |
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switch (viafb_lcd_panel_id) { |
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case LCD_PANEL_ID0_640X480: |
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if ((xres < 640) && (yres < 480)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID1_800X600: |
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if ((xres < 800) && (yres < 600)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID2_1024X768: |
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if ((xres < 1024) && (yres < 768)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID3_1280X768: |
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if ((xres < 1280) && (yres < 768)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID4_1280X1024: |
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if ((xres < 1280) && (yres < 1024)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID5_1400X1050: |
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if ((xres < 1400) && (yres < 1050)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID6_1600X1200: |
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if ((xres < 1600) && (yres < 1200)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID7_1366X768: |
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if ((xres < 1366) && (yres < 768)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID8_1024X600: |
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if ((xres < 1024) && (yres < 600)) |
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support_state = true; |
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break; |
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case LCD_PANEL_ID9_1280X800: |
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if ((xres < 1280) && (yres < 800)) |
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support_state = true; |
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break; |
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case LCD_PANEL_IDA_800X480: |
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if ((xres < 800) && (yres < 480)) |
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support_state = true; |
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break; |
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case LCD_PANEL_IDB_1360X768: |
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if ((xres < 1360) && (yres < 768)) |
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support_state = true; |
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break; |
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case LCD_PANEL_IDC_480X640: |
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if ((xres < 480) && (yres < 640)) |
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support_state = true; |
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break; |
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default: |
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support_state = false; |
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break; |
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} |
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return support_state; |
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} |
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/*====================================================================*/ |
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/* Gamma Function Implementation*/ |
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/*====================================================================*/ |
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void viafb_set_gamma_table(int bpp, unsigned int *gamma_table) |
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{ |
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int i, sr1a; |
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int active_device_amount = 0; |
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int device_status = viafb_DeviceStatus; |
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for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) { |
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if (device_status & 1) |
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active_device_amount++; |
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device_status >>= 1; |
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} |
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/* 8 bpp mode can't adjust gamma */ |
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if (bpp == 8) |
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return ; |
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/* Enable Gamma */ |
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switch (viaparinfo->chip_info->gfx_chip_name) { |
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case UNICHROME_CLE266: |
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case UNICHROME_K400: |
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viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); |
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break; |
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case UNICHROME_K800: |
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case UNICHROME_PM800: |
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case UNICHROME_CN700: |
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case UNICHROME_CX700: |
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case UNICHROME_K8M890: |
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case UNICHROME_P4M890: |
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case UNICHROME_P4M900: |
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viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); |
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break; |
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} |
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sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A); |
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viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); |
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/* Fill IGA1 Gamma Table */ |
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outb(0, LUT_INDEX_WRITE); |
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for (i = 0; i < 256; i++) { |
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outb(gamma_table[i] >> 16, LUT_DATA); |
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outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); |
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outb(gamma_table[i] & 0xFF, LUT_DATA); |
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} |
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/* If adjust Gamma value in SAMM, fill IGA1, |
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IGA2 Gamma table simultaneous. */ |
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/* Switch to IGA2 Gamma Table */ |
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if ((active_device_amount > 1) && |
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!((viaparinfo->chip_info->gfx_chip_name == |
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UNICHROME_CLE266) && |
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(viaparinfo->chip_info->gfx_chip_revision < 15))) { |
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viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0); |
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viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1); |
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/* Fill IGA2 Gamma Table */ |
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outb(0, LUT_INDEX_WRITE); |
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for (i = 0; i < 256; i++) { |
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outb(gamma_table[i] >> 16, LUT_DATA); |
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outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA); |
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outb(gamma_table[i] & 0xFF, LUT_DATA); |
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} |
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} |
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viafb_write_reg(SR1A, VIASR, sr1a); |
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} |
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void viafb_get_gamma_table(unsigned int *gamma_table) |
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{ |
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unsigned char color_r, color_g, color_b; |
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unsigned char sr1a = 0; |
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int i; |
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/* Enable Gamma */ |
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switch (viaparinfo->chip_info->gfx_chip_name) { |
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case UNICHROME_CLE266: |
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case UNICHROME_K400: |
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viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7); |
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break; |
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case UNICHROME_K800: |
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case UNICHROME_PM800: |
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case UNICHROME_CN700: |
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case UNICHROME_CX700: |
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case UNICHROME_K8M890: |
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case UNICHROME_P4M890: |
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case UNICHROME_P4M900: |
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viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7); |
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break; |
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} |
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sr1a = viafb_read_reg(VIASR, SR1A); |
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viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0); |
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/* Reading gamma table to get color value */ |
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outb(0, LUT_INDEX_READ); |
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for (i = 0; i < 256; i++) { |
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color_r = inb(LUT_DATA); |
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color_g = inb(LUT_DATA); |
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color_b = inb(LUT_DATA); |
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gamma_table[i] = |
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((((u32) color_r) << 16) | |
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(((u16) color_g) << 8)) | color_b; |
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} |
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viafb_write_reg(SR1A, VIASR, sr1a); |
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} |
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void viafb_get_gamma_support_state(int bpp, unsigned int *support_state) |
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{ |
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if (bpp == 8) |
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*support_state = None_Device; |
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else |
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*support_state = CRT_Device | DVI_Device | LCD_Device; |
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}
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