2 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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.
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
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
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 void viafb_get_device_support_state(u32 *support_state)
26 *support_state = CRT_Device;
28 if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name == VT1632_TMDS)
29 *support_state |= DVI_Device;
31 if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name == VT1631_LVDS)
32 *support_state |= LCD_Device;
35 void viafb_get_device_connect_state(u32 *connect_state)
39 *connect_state = CRT_Device;
41 if (viafb_dvi_sense())
42 *connect_state |= DVI_Device;
44 viafb_lcd_get_mobile_state(&mobile);
46 *connect_state |= LCD_Device;
49 bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres)
51 unsigned int support_state = 0;
53 switch (viafb_lcd_panel_id) {
54 case LCD_PANEL_ID0_640X480:
55 if ((xres < 640) && (yres < 480))
59 case LCD_PANEL_ID1_800X600:
60 if ((xres < 800) && (yres < 600))
64 case LCD_PANEL_ID2_1024X768:
65 if ((xres < 1024) && (yres < 768))
69 case LCD_PANEL_ID3_1280X768:
70 if ((xres < 1280) && (yres < 768))
74 case LCD_PANEL_ID4_1280X1024:
75 if ((xres < 1280) && (yres < 1024))
79 case LCD_PANEL_ID5_1400X1050:
80 if ((xres < 1400) && (yres < 1050))
84 case LCD_PANEL_ID6_1600X1200:
85 if ((xres < 1600) && (yres < 1200))
89 case LCD_PANEL_ID7_1366X768:
90 if ((xres < 1366) && (yres < 768))
94 case LCD_PANEL_ID8_1024X600:
95 if ((xres < 1024) && (yres < 600))
99 case LCD_PANEL_ID9_1280X800:
100 if ((xres < 1280) && (yres < 800))
101 support_state = true;
104 case LCD_PANEL_IDA_800X480:
105 if ((xres < 800) && (yres < 480))
106 support_state = true;
109 case LCD_PANEL_IDB_1360X768:
110 if ((xres < 1360) && (yres < 768))
111 support_state = true;
114 case LCD_PANEL_IDC_480X640:
115 if ((xres < 480) && (yres < 640))
116 support_state = true;
120 support_state = false;
124 return support_state;
127 /*====================================================================*/
128 /* Gamma Function Implementation*/
129 /*====================================================================*/
131 void viafb_set_gamma_table(int bpp, unsigned int *gamma_table)
134 int active_device_amount = 0;
135 int device_status = viafb_DeviceStatus;
137 for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) {
138 if (device_status & 1)
139 active_device_amount++;
143 /* 8 bpp mode can't adjust gamma */
148 switch (viaparinfo->chip_info->gfx_chip_name) {
149 case UNICHROME_CLE266:
151 viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7);
155 case UNICHROME_PM800:
156 case UNICHROME_CN700:
157 case UNICHROME_CX700:
158 case UNICHROME_K8M890:
159 case UNICHROME_P4M890:
160 case UNICHROME_P4M900:
161 viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7);
164 sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A);
165 viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0);
167 /* Fill IGA1 Gamma Table */
168 outb(0, LUT_INDEX_WRITE);
169 for (i = 0; i < 256; i++) {
170 outb(gamma_table[i] >> 16, LUT_DATA);
171 outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);
172 outb(gamma_table[i] & 0xFF, LUT_DATA);
175 /* If adjust Gamma value in SAMM, fill IGA1,
176 IGA2 Gamma table simultanous. */
177 /* Switch to IGA2 Gamma Table */
178 if ((active_device_amount > 1) &&
179 !((viaparinfo->chip_info->gfx_chip_name ==
181 (viaparinfo->chip_info->gfx_chip_revision < 15))) {
182 viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0);
183 viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1);
185 /* Fill IGA2 Gamma Table */
186 outb(0, LUT_INDEX_WRITE);
187 for (i = 0; i < 256; i++) {
188 outb(gamma_table[i] >> 16, LUT_DATA);
189 outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);
190 outb(gamma_table[i] & 0xFF, LUT_DATA);
193 viafb_write_reg(SR1A, VIASR, sr1a);
196 void viafb_get_gamma_table(unsigned int *gamma_table)
198 unsigned char color_r, color_g, color_b;
199 unsigned char sr1a = 0;
203 switch (viaparinfo->chip_info->gfx_chip_name) {
204 case UNICHROME_CLE266:
206 viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7);
210 case UNICHROME_PM800:
211 case UNICHROME_CN700:
212 case UNICHROME_CX700:
213 case UNICHROME_K8M890:
214 case UNICHROME_P4M890:
215 case UNICHROME_P4M900:
216 viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7);
219 sr1a = viafb_read_reg(VIASR, SR1A);
220 viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0);
222 /* Reading gamma table to get color value */
223 outb(0, LUT_INDEX_READ);
224 for (i = 0; i < 256; i++) {
225 color_r = inb(LUT_DATA);
226 color_g = inb(LUT_DATA);
227 color_b = inb(LUT_DATA);
229 ((((u32) color_r) << 16) |
230 (((u16) color_g) << 8)) | color_b;
232 viafb_write_reg(SR1A, VIASR, sr1a);
235 void viafb_get_gamma_support_state(int bpp, unsigned int *support_state)
238 *support_state = None_Device;
240 *support_state = CRT_Device | DVI_Device | LCD_Device;
243 int viafb_input_parameter_converter(int parameter_value)
247 if (parameter_value >= 1 && parameter_value <= 9)
248 result = 1 << (parameter_value - 1);