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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranties or representations without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 43 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.826676366@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
229 lines
5.2 KiB
C
229 lines
5.2 KiB
C
// 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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