summaryrefslogtreecommitdiff
path: root/drivers/video/via/lcd.c
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 15:31:38 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/via/lcd.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/via/lcd.c')
-rw-r--r--drivers/video/via/lcd.c1005
1 files changed, 0 insertions, 1005 deletions
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
deleted file mode 100644
index 5d21ff436ec8..000000000000
--- a/drivers/video/via/lcd.c
+++ /dev/null
@@ -1,1005 +0,0 @@
-/*
- * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
- * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
-
- * 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.
- */
-#include <linux/via-core.h>
-#include <linux/via_i2c.h>
-#include "global.h"
-
-#define viafb_compact_res(x, y) (((x)<<16)|(y))
-
-/* CLE266 Software Power Sequence */
-/* {Mask}, {Data}, {Delay} */
-static const int PowerSequenceOn[3][3] = {
- {0x10, 0x08, 0x06}, {0x10, 0x08, 0x06}, {0x19, 0x1FE, 0x01}
-};
-static const int PowerSequenceOff[3][3] = {
- {0x06, 0x08, 0x10}, {0x00, 0x00, 0x00}, {0xD2, 0x19, 0x01}
-};
-
-static struct _lcd_scaling_factor lcd_scaling_factor = {
- /* LCD Horizontal Scaling Factor Register */
- {LCD_HOR_SCALING_FACTOR_REG_NUM,
- {{CR9F, 0, 1}, {CR77, 0, 7}, {CR79, 4, 5} } },
- /* LCD Vertical Scaling Factor Register */
- {LCD_VER_SCALING_FACTOR_REG_NUM,
- {{CR79, 3, 3}, {CR78, 0, 7}, {CR79, 6, 7} } }
-};
-static struct _lcd_scaling_factor lcd_scaling_factor_CLE = {
- /* LCD Horizontal Scaling Factor Register */
- {LCD_HOR_SCALING_FACTOR_REG_NUM_CLE, {{CR77, 0, 7}, {CR79, 4, 5} } },
- /* LCD Vertical Scaling Factor Register */
- {LCD_VER_SCALING_FACTOR_REG_NUM_CLE, {{CR78, 0, 7}, {CR79, 6, 7} } }
-};
-
-static bool lvds_identify_integratedlvds(void);
-static void fp_id_to_vindex(int panel_id);
-static int lvds_register_read(int index);
-static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
- int panel_vres);
-static void lcd_patch_skew_dvp0(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info);
-static void lcd_patch_skew_dvp1(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info);
-static void lcd_patch_skew(struct lvds_setting_information
- *plvds_setting_info, struct lvds_chip_information *plvds_chip_info);
-
-static void integrated_lvds_disable(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info);
-static void integrated_lvds_enable(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info);
-static void lcd_powersequence_off(void);
-static void lcd_powersequence_on(void);
-static void fill_lcd_format(void);
-static void check_diport_of_integrated_lvds(
- struct lvds_chip_information *plvds_chip_info,
- struct lvds_setting_information
- *plvds_setting_info);
-
-static inline bool check_lvds_chip(int device_id_subaddr, int device_id)
-{
- return lvds_register_read(device_id_subaddr) == device_id;
-}
-
-void viafb_init_lcd_size(void)
-{
- DEBUG_MSG(KERN_INFO "viafb_init_lcd_size()\n");
-
- fp_id_to_vindex(viafb_lcd_panel_id);
- viaparinfo->lvds_setting_info2->lcd_panel_hres =
- viaparinfo->lvds_setting_info->lcd_panel_hres;
- viaparinfo->lvds_setting_info2->lcd_panel_vres =
- viaparinfo->lvds_setting_info->lcd_panel_vres;
- viaparinfo->lvds_setting_info2->device_lcd_dualedge =
- viaparinfo->lvds_setting_info->device_lcd_dualedge;
- viaparinfo->lvds_setting_info2->LCDDithering =
- viaparinfo->lvds_setting_info->LCDDithering;
-}
-
-static bool lvds_identify_integratedlvds(void)
-{
- if (viafb_display_hardware_layout == HW_LAYOUT_LCD_EXTERNAL_LCD2) {
- /* Two dual channel LCD (Internal LVDS + External LVDS): */
- /* If we have an external LVDS, such as VT1636, we should
- have its chip ID already. */
- if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
- viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name =
- INTEGRATED_LVDS;
- DEBUG_MSG(KERN_INFO "Support two dual channel LVDS! "
- "(Internal LVDS + External LVDS)\n");
- } else {
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
- INTEGRATED_LVDS;
- DEBUG_MSG(KERN_INFO "Not found external LVDS, "
- "so can't support two dual channel LVDS!\n");
- }
- } else if (viafb_display_hardware_layout == HW_LAYOUT_LCD1_LCD2) {
- /* Two single channel LCD (Internal LVDS + Internal LVDS): */
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
- INTEGRATED_LVDS;
- viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name =
- INTEGRATED_LVDS;
- DEBUG_MSG(KERN_INFO "Support two single channel LVDS! "
- "(Internal LVDS + Internal LVDS)\n");
- } else if (viafb_display_hardware_layout != HW_LAYOUT_DVI_ONLY) {
- /* If we have found external LVDS, just use it,
- otherwise, we will use internal LVDS as default. */
- if (!viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
- INTEGRATED_LVDS;
- DEBUG_MSG(KERN_INFO "Found Integrated LVDS!\n");
- }
- } else {
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
- NON_LVDS_TRANSMITTER;
- DEBUG_MSG(KERN_INFO "Do not support LVDS!\n");
- return false;
- }
-
- return true;
-}
-
-bool viafb_lvds_trasmitter_identify(void)
-{
- if (viafb_lvds_identify_vt1636(VIA_PORT_31)) {
- viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_31;
- DEBUG_MSG(KERN_INFO
- "Found VIA VT1636 LVDS on port i2c 0x31\n");
- } else {
- if (viafb_lvds_identify_vt1636(VIA_PORT_2C)) {
- viaparinfo->chip_info->lvds_chip_info.i2c_port =
- VIA_PORT_2C;
- DEBUG_MSG(KERN_INFO
- "Found VIA VT1636 LVDS on port gpio 0x2c\n");
- }
- }
-
- if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700)
- lvds_identify_integratedlvds();
-
- if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name)
- return true;
- /* Check for VT1631: */
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name = VT1631_LVDS;
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr =
- VT1631_LVDS_I2C_ADDR;
-
- if (check_lvds_chip(VT1631_DEVICE_ID_REG, VT1631_DEVICE_ID)) {
- DEBUG_MSG(KERN_INFO "\n VT1631 LVDS ! \n");
- DEBUG_MSG(KERN_INFO "\n %2d",
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name);
- DEBUG_MSG(KERN_INFO "\n %2d",
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name);
- return true;
- }
-
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
- NON_LVDS_TRANSMITTER;
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr =
- VT1631_LVDS_I2C_ADDR;
- return false;
-}
-
-static void fp_id_to_vindex(int panel_id)
-{
- DEBUG_MSG(KERN_INFO "fp_get_panel_id()\n");
-
- if (panel_id > LCD_PANEL_ID_MAXIMUM)
- viafb_lcd_panel_id = panel_id =
- viafb_read_reg(VIACR, CR3F) & 0x0F;
-
- switch (panel_id) {
- case 0x0:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 640;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 480;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x1:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 800;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 600;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x2:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1024;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x3:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x4:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1024;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x5:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1400;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1050;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x6:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1600;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1200;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x8:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 800;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 480;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x9:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1024;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0xA:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1024;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0xB:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1024;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0xC:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0xD:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1024;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0xE:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1400;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1050;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0xF:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1600;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 1200;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0x10:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1366;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0x11:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1024;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 600;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x12:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x13:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 800;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x14:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1360;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0x15:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1280;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 768;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 1;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- case 0x16:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 480;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 640;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- break;
- case 0x17:
- /* OLPC XO-1.5 panel */
- viaparinfo->lvds_setting_info->lcd_panel_hres = 1200;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 900;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 0;
- break;
- default:
- viaparinfo->lvds_setting_info->lcd_panel_hres = 800;
- viaparinfo->lvds_setting_info->lcd_panel_vres = 600;
- viaparinfo->lvds_setting_info->device_lcd_dualedge = 0;
- viaparinfo->lvds_setting_info->LCDDithering = 1;
- }
-}
-
-static int lvds_register_read(int index)
-{
- u8 data;
-
- viafb_i2c_readbyte(VIA_PORT_2C,
- (u8) viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr,
- (u8) index, &data);
- return data;
-}
-
-static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
- int panel_vres)
-{
- int reg_value = 0;
- int viafb_load_reg_num;
- struct io_register *reg = NULL;
-
- DEBUG_MSG(KERN_INFO "load_lcd_scaling()!!\n");
-
- /* LCD Scaling Enable */
- viafb_write_reg_mask(CR79, VIACR, 0x07, BIT0 + BIT1 + BIT2);
-
- /* Check if expansion for horizontal */
- if (set_hres < panel_hres) {
- /* Load Horizontal Scaling Factor */
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_CLE266:
- case UNICHROME_K400:
- reg_value =
- CLE266_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
- viafb_load_reg_num =
- lcd_scaling_factor_CLE.lcd_hor_scaling_factor.
- reg_num;
- reg = lcd_scaling_factor_CLE.lcd_hor_scaling_factor.reg;
- viafb_load_reg(reg_value,
- viafb_load_reg_num, reg, VIACR);
- break;
- case UNICHROME_K800:
- case UNICHROME_PM800:
- case UNICHROME_CN700:
- case UNICHROME_CX700:
- case UNICHROME_K8M890:
- case UNICHROME_P4M890:
- case UNICHROME_P4M900:
- case UNICHROME_CN750:
- case UNICHROME_VX800:
- case UNICHROME_VX855:
- case UNICHROME_VX900:
- reg_value =
- K800_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
- /* Horizontal scaling enabled */
- viafb_write_reg_mask(CRA2, VIACR, 0xC0, BIT7 + BIT6);
- viafb_load_reg_num =
- lcd_scaling_factor.lcd_hor_scaling_factor.reg_num;
- reg = lcd_scaling_factor.lcd_hor_scaling_factor.reg;
- viafb_load_reg(reg_value,
- viafb_load_reg_num, reg, VIACR);
- break;
- }
-
- DEBUG_MSG(KERN_INFO "Horizontal Scaling value = %d", reg_value);
- } else {
- /* Horizontal scaling disabled */
- viafb_write_reg_mask(CRA2, VIACR, 0x00, BIT7);
- }
-
- /* Check if expansion for vertical */
- if (set_vres < panel_vres) {
- /* Load Vertical Scaling Factor */
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_CLE266:
- case UNICHROME_K400:
- reg_value =
- CLE266_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
- viafb_load_reg_num =
- lcd_scaling_factor_CLE.lcd_ver_scaling_factor.
- reg_num;
- reg = lcd_scaling_factor_CLE.lcd_ver_scaling_factor.reg;
- viafb_load_reg(reg_value,
- viafb_load_reg_num, reg, VIACR);
- break;
- case UNICHROME_K800:
- case UNICHROME_PM800:
- case UNICHROME_CN700:
- case UNICHROME_CX700:
- case UNICHROME_K8M890:
- case UNICHROME_P4M890:
- case UNICHROME_P4M900:
- case UNICHROME_CN750:
- case UNICHROME_VX800:
- case UNICHROME_VX855:
- case UNICHROME_VX900:
- reg_value =
- K800_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
- /* Vertical scaling enabled */
- viafb_write_reg_mask(CRA2, VIACR, 0x08, BIT3);
- viafb_load_reg_num =
- lcd_scaling_factor.lcd_ver_scaling_factor.reg_num;
- reg = lcd_scaling_factor.lcd_ver_scaling_factor.reg;
- viafb_load_reg(reg_value,
- viafb_load_reg_num, reg, VIACR);
- break;
- }
-
- DEBUG_MSG(KERN_INFO "Vertical Scaling value = %d", reg_value);
- } else {
- /* Vertical scaling disabled */
- viafb_write_reg_mask(CRA2, VIACR, 0x00, BIT3);
- }
-}
-
-static void via_pitch_alignment_patch_lcd(int iga_path, int hres, int bpp)
-{
- unsigned char cr13, cr35, cr65, cr66, cr67;
- unsigned long dwScreenPitch = 0;
- unsigned long dwPitch;
-
- dwPitch = hres * (bpp >> 3);
- if (dwPitch & 0x1F) {
- dwScreenPitch = ((dwPitch + 31) & ~31) >> 3;
- if (iga_path == IGA2) {
- if (bpp > 8) {
- cr66 = (unsigned char)(dwScreenPitch & 0xFF);
- viafb_write_reg(CR66, VIACR, cr66);
- cr67 = viafb_read_reg(VIACR, CR67) & 0xFC;
- cr67 |=
- (unsigned
- char)((dwScreenPitch & 0x300) >> 8);
- viafb_write_reg(CR67, VIACR, cr67);
- }
-
- /* Fetch Count */
- cr67 = viafb_read_reg(VIACR, CR67) & 0xF3;
- cr67 |= (unsigned char)((dwScreenPitch & 0x600) >> 7);
- viafb_write_reg(CR67, VIACR, cr67);
- cr65 = (unsigned char)((dwScreenPitch >> 1) & 0xFF);
- cr65 += 2;
- viafb_write_reg(CR65, VIACR, cr65);
- } else {
- if (bpp > 8) {
- cr13 = (unsigned char)(dwScreenPitch & 0xFF);
- viafb_write_reg(CR13, VIACR, cr13);
- cr35 = viafb_read_reg(VIACR, CR35) & 0x1F;
- cr35 |=
- (unsigned
- char)((dwScreenPitch & 0x700) >> 3);
- viafb_write_reg(CR35, VIACR, cr35);
- }
- }
- }
-}
-static void lcd_patch_skew_dvp0(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info)
-{
- if (VT1636_LVDS == plvds_chip_info->lvds_chip_name) {
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_P4M900:
- viafb_vt1636_patch_skew_on_vt3364(plvds_setting_info,
- plvds_chip_info);
- break;
- case UNICHROME_P4M890:
- viafb_vt1636_patch_skew_on_vt3327(plvds_setting_info,
- plvds_chip_info);
- break;
- }
- }
-}
-static void lcd_patch_skew_dvp1(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info)
-{
- if (VT1636_LVDS == plvds_chip_info->lvds_chip_name) {
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_CX700:
- viafb_vt1636_patch_skew_on_vt3324(plvds_setting_info,
- plvds_chip_info);
- break;
- }
- }
-}
-static void lcd_patch_skew(struct lvds_setting_information
- *plvds_setting_info, struct lvds_chip_information *plvds_chip_info)
-{
- DEBUG_MSG(KERN_INFO "lcd_patch_skew\n");
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_DVP0:
- lcd_patch_skew_dvp0(plvds_setting_info, plvds_chip_info);
- break;
- case INTERFACE_DVP1:
- lcd_patch_skew_dvp1(plvds_setting_info, plvds_chip_info);
- break;
- case INTERFACE_DFP_LOW:
- if (UNICHROME_P4M900 == viaparinfo->chip_info->gfx_chip_name) {
- viafb_write_reg_mask(CR99, VIACR, 0x08,
- BIT0 + BIT1 + BIT2 + BIT3);
- }
- break;
- }
-}
-
-/* LCD Set Mode */
-void viafb_lcd_set_mode(const struct fb_var_screeninfo *var, u16 cxres,
- u16 cyres, struct lvds_setting_information *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info)
-{
- int set_iga = plvds_setting_info->iga_path;
- int mode_bpp = var->bits_per_pixel;
- int set_hres = cxres ? cxres : var->xres;
- int set_vres = cyres ? cyres : var->yres;
- int panel_hres = plvds_setting_info->lcd_panel_hres;
- int panel_vres = plvds_setting_info->lcd_panel_vres;
- u32 clock;
- struct via_display_timing timing;
- struct fb_var_screeninfo panel_var;
- const struct fb_videomode *mode_crt_table, *panel_crt_table;
-
- DEBUG_MSG(KERN_INFO "viafb_lcd_set_mode!!\n");
- /* Get mode table */
- mode_crt_table = viafb_get_best_mode(set_hres, set_vres, 60);
- /* Get panel table Pointer */
- panel_crt_table = viafb_get_best_mode(panel_hres, panel_vres, 60);
- viafb_fill_var_timing_info(&panel_var, panel_crt_table);
- DEBUG_MSG(KERN_INFO "bellow viafb_lcd_set_mode!!\n");
- if (VT1636_LVDS == plvds_chip_info->lvds_chip_name)
- viafb_init_lvds_vt1636(plvds_setting_info, plvds_chip_info);
- clock = PICOS2KHZ(panel_crt_table->pixclock) * 1000;
- plvds_setting_info->vclk = clock;
-
- if (set_iga == IGA2 && (set_hres < panel_hres || set_vres < panel_vres)
- && plvds_setting_info->display_method == LCD_EXPANDSION) {
- timing = var_to_timing(&panel_var, panel_hres, panel_vres);
- load_lcd_scaling(set_hres, set_vres, panel_hres, panel_vres);
- } else {
- timing = var_to_timing(&panel_var, set_hres, set_vres);
- if (set_iga == IGA2)
- /* disable scaling */
- via_write_reg_mask(VIACR, 0x79, 0x00,
- BIT0 + BIT1 + BIT2);
- }
-
- if (set_iga == IGA1)
- via_set_primary_timing(&timing);
- else if (set_iga == IGA2)
- via_set_secondary_timing(&timing);
-
- /* Fetch count for IGA2 only */
- viafb_load_fetch_count_reg(set_hres, mode_bpp / 8, set_iga);
-
- if ((viaparinfo->chip_info->gfx_chip_name != UNICHROME_CLE266)
- && (viaparinfo->chip_info->gfx_chip_name != UNICHROME_K400))
- viafb_load_FIFO_reg(set_iga, set_hres, set_vres);
-
- fill_lcd_format();
- viafb_set_vclock(clock, set_iga);
- lcd_patch_skew(plvds_setting_info, plvds_chip_info);
-
- /* If K8M800, enable LCD Prefetch Mode. */
- if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800)
- || (UNICHROME_K8M890 == viaparinfo->chip_info->gfx_chip_name))
- viafb_write_reg_mask(CR6A, VIACR, 0x01, BIT0);
-
- /* Patch for non 32bit alignment mode */
- via_pitch_alignment_patch_lcd(plvds_setting_info->iga_path, set_hres,
- var->bits_per_pixel);
-}
-
-static void integrated_lvds_disable(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info)
-{
- bool turn_off_first_powersequence = false;
- bool turn_off_second_powersequence = false;
- if (INTERFACE_LVDS0LVDS1 == plvds_chip_info->output_interface)
- turn_off_first_powersequence = true;
- if (INTERFACE_LVDS0 == plvds_chip_info->output_interface)
- turn_off_first_powersequence = true;
- if (INTERFACE_LVDS1 == plvds_chip_info->output_interface)
- turn_off_second_powersequence = true;
- if (turn_off_second_powersequence) {
- /* Use second power sequence control: */
-
- /* Turn off power sequence. */
- viafb_write_reg_mask(CRD4, VIACR, 0, BIT1);
-
- /* Turn off back light. */
- viafb_write_reg_mask(CRD3, VIACR, 0xC0, BIT6 + BIT7);
- }
- if (turn_off_first_powersequence) {
- /* Use first power sequence control: */
-
- /* Turn off power sequence. */
- viafb_write_reg_mask(CR6A, VIACR, 0, BIT3);
-
- /* Turn off back light. */
- viafb_write_reg_mask(CR91, VIACR, 0xC0, BIT6 + BIT7);
- }
-
- /* Power off LVDS channel. */
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_LVDS0:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0x80, BIT7);
- break;
- }
-
- case INTERFACE_LVDS1:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0x40, BIT6);
- break;
- }
-
- case INTERFACE_LVDS0LVDS1:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0xC0, BIT6 + BIT7);
- break;
- }
- }
-}
-
-static void integrated_lvds_enable(struct lvds_setting_information
- *plvds_setting_info,
- struct lvds_chip_information *plvds_chip_info)
-{
- DEBUG_MSG(KERN_INFO "integrated_lvds_enable, out_interface:%d\n",
- plvds_chip_info->output_interface);
- if (plvds_setting_info->lcd_mode == LCD_SPWG)
- viafb_write_reg_mask(CRD2, VIACR, 0x00, BIT0 + BIT1);
- else
- viafb_write_reg_mask(CRD2, VIACR, 0x03, BIT0 + BIT1);
-
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_LVDS0LVDS1:
- case INTERFACE_LVDS0:
- /* Use first power sequence control: */
- /* Use hardware control power sequence. */
- viafb_write_reg_mask(CR91, VIACR, 0, BIT0);
- /* Turn on back light. */
- viafb_write_reg_mask(CR91, VIACR, 0, BIT6 + BIT7);
- /* Turn on hardware power sequence. */
- viafb_write_reg_mask(CR6A, VIACR, 0x08, BIT3);
- break;
- case INTERFACE_LVDS1:
- /* Use second power sequence control: */
- /* Use hardware control power sequence. */
- viafb_write_reg_mask(CRD3, VIACR, 0, BIT0);
- /* Turn on back light. */
- viafb_write_reg_mask(CRD3, VIACR, 0, BIT6 + BIT7);
- /* Turn on hardware power sequence. */
- viafb_write_reg_mask(CRD4, VIACR, 0x02, BIT1);
- break;
- }
-
- /* Power on LVDS channel. */
- switch (plvds_chip_info->output_interface) {
- case INTERFACE_LVDS0:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0, BIT7);
- break;
- }
-
- case INTERFACE_LVDS1:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0, BIT6);
- break;
- }
-
- case INTERFACE_LVDS0LVDS1:
- {
- viafb_write_reg_mask(CRD2, VIACR, 0, BIT6 + BIT7);
- break;
- }
- }
-}
-
-void viafb_lcd_disable(void)
-{
-
- if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) {
- lcd_powersequence_off();
- /* DI1 pad off */
- viafb_write_reg_mask(SR1E, VIASR, 0x00, 0x30);
- } else if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) {
- if (viafb_LCD2_ON
- && (INTEGRATED_LVDS ==
- viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name))
- integrated_lvds_disable(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info2);
- if (INTEGRATED_LVDS ==
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name)
- integrated_lvds_disable(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info);
- if (VT1636_LVDS == viaparinfo->chip_info->
- lvds_chip_info.lvds_chip_name)
- viafb_disable_lvds_vt1636(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info);
- } else if (VT1636_LVDS ==
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
- viafb_disable_lvds_vt1636(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info);
- } else {
- /* Backlight off */
- viafb_write_reg_mask(SR3D, VIASR, 0x00, 0x20);
- /* 24 bit DI data paht off */
- viafb_write_reg_mask(CR91, VIACR, 0x80, 0x80);
- }
-
- /* Disable expansion bit */
- viafb_write_reg_mask(CR79, VIACR, 0x00, 0x01);
- /* Simultaneout disabled */
- viafb_write_reg_mask(CR6B, VIACR, 0x00, 0x08);
-}
-
-static void set_lcd_output_path(int set_iga, int output_interface)
-{
- switch (output_interface) {
- case INTERFACE_DFP:
- if ((UNICHROME_K8M890 == viaparinfo->chip_info->gfx_chip_name)
- || (UNICHROME_P4M890 ==
- viaparinfo->chip_info->gfx_chip_name))
- viafb_write_reg_mask(CR97, VIACR, 0x84,
- BIT7 + BIT2 + BIT1 + BIT0);
- case INTERFACE_DVP0:
- case INTERFACE_DVP1:
- case INTERFACE_DFP_HIGH:
- case INTERFACE_DFP_LOW:
- if (set_iga == IGA2)
- viafb_write_reg(CR91, VIACR, 0x00);
- break;
- }
-}
-
-void viafb_lcd_enable(void)
-{
- viafb_write_reg_mask(CR6B, VIACR, 0x00, BIT3);
- viafb_write_reg_mask(CR6A, VIACR, 0x08, BIT3);
- set_lcd_output_path(viaparinfo->lvds_setting_info->iga_path,
- viaparinfo->chip_info->lvds_chip_info.output_interface);
- if (viafb_LCD2_ON)
- set_lcd_output_path(viaparinfo->lvds_setting_info2->iga_path,
- viaparinfo->chip_info->
- lvds_chip_info2.output_interface);
-
- if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) {
- /* DI1 pad on */
- viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30);
- lcd_powersequence_on();
- } else if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) {
- if (viafb_LCD2_ON && (INTEGRATED_LVDS ==
- viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name))
- integrated_lvds_enable(viaparinfo->lvds_setting_info2, \
- &viaparinfo->chip_info->lvds_chip_info2);
- if (INTEGRATED_LVDS ==
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name)
- integrated_lvds_enable(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info);
- if (VT1636_LVDS == viaparinfo->chip_info->
- lvds_chip_info.lvds_chip_name)
- viafb_enable_lvds_vt1636(viaparinfo->
- lvds_setting_info, &viaparinfo->chip_info->
- lvds_chip_info);
- } else if (VT1636_LVDS ==
- viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
- viafb_enable_lvds_vt1636(viaparinfo->lvds_setting_info,
- &viaparinfo->chip_info->lvds_chip_info);
- } else {
- /* Backlight on */
- viafb_write_reg_mask(SR3D, VIASR, 0x20, 0x20);
- /* 24 bit DI data paht on */
- viafb_write_reg_mask(CR91, VIACR, 0x00, 0x80);
- /* LCD enabled */
- viafb_write_reg_mask(CR6A, VIACR, 0x48, 0x48);
- }
-}
-
-static void lcd_powersequence_off(void)
-{
- int i, mask, data;
-
- /* Software control power sequence */
- viafb_write_reg_mask(CR91, VIACR, 0x11, 0x11);
-
- for (i = 0; i < 3; i++) {
- mask = PowerSequenceOff[0][i];
- data = PowerSequenceOff[1][i] & mask;
- viafb_write_reg_mask(CR91, VIACR, (u8) data, (u8) mask);
- udelay(PowerSequenceOff[2][i]);
- }
-
- /* Disable LCD */
- viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x08);
-}
-
-static void lcd_powersequence_on(void)
-{
- int i, mask, data;
-
- /* Software control power sequence */
- viafb_write_reg_mask(CR91, VIACR, 0x11, 0x11);
-
- /* Enable LCD */
- viafb_write_reg_mask(CR6A, VIACR, 0x08, 0x08);
-
- for (i = 0; i < 3; i++) {
- mask = PowerSequenceOn[0][i];
- data = PowerSequenceOn[1][i] & mask;
- viafb_write_reg_mask(CR91, VIACR, (u8) data, (u8) mask);
- udelay(PowerSequenceOn[2][i]);
- }
-
- udelay(1);
-}
-
-static void fill_lcd_format(void)
-{
- u8 bdithering = 0, bdual = 0;
-
- if (viaparinfo->lvds_setting_info->device_lcd_dualedge)
- bdual = BIT4;
- if (viaparinfo->lvds_setting_info->LCDDithering)
- bdithering = BIT0;
- /* Dual & Dithering */
- viafb_write_reg_mask(CR88, VIACR, (bdithering | bdual), BIT4 + BIT0);
-}
-
-static void check_diport_of_integrated_lvds(
- struct lvds_chip_information *plvds_chip_info,
- struct lvds_setting_information
- *plvds_setting_info)
-{
- /* Determine LCD DI Port by hardware layout. */
- switch (viafb_display_hardware_layout) {
- case HW_LAYOUT_LCD_ONLY:
- {
- if (plvds_setting_info->device_lcd_dualedge) {
- plvds_chip_info->output_interface =
- INTERFACE_LVDS0LVDS1;
- } else {
- plvds_chip_info->output_interface =
- INTERFACE_LVDS0;
- }
-
- break;
- }
-
- case HW_LAYOUT_DVI_ONLY:
- {
- plvds_chip_info->output_interface = INTERFACE_NONE;
- break;
- }
-
- case HW_LAYOUT_LCD1_LCD2:
- case HW_LAYOUT_LCD_EXTERNAL_LCD2:
- {
- plvds_chip_info->output_interface =
- INTERFACE_LVDS0LVDS1;
- break;
- }
-
- case HW_LAYOUT_LCD_DVI:
- {
- plvds_chip_info->output_interface = INTERFACE_LVDS1;
- break;
- }
-
- default:
- {
- plvds_chip_info->output_interface = INTERFACE_LVDS1;
- break;
- }
- }
-
- DEBUG_MSG(KERN_INFO
- "Display Hardware Layout: 0x%x, LCD DI Port: 0x%x\n",
- viafb_display_hardware_layout,
- plvds_chip_info->output_interface);
-}
-
-void viafb_init_lvds_output_interface(struct lvds_chip_information
- *plvds_chip_info,
- struct lvds_setting_information
- *plvds_setting_info)
-{
- if (INTERFACE_NONE != plvds_chip_info->output_interface) {
- /*Do nothing, lcd port is specified by module parameter */
- return;
- }
-
- switch (plvds_chip_info->lvds_chip_name) {
-
- case VT1636_LVDS:
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_CX700:
- plvds_chip_info->output_interface = INTERFACE_DVP1;
- break;
- case UNICHROME_CN700:
- plvds_chip_info->output_interface = INTERFACE_DFP_LOW;
- break;
- default:
- plvds_chip_info->output_interface = INTERFACE_DVP0;
- break;
- }
- break;
-
- case INTEGRATED_LVDS:
- check_diport_of_integrated_lvds(plvds_chip_info,
- plvds_setting_info);
- break;
-
- default:
- switch (viaparinfo->chip_info->gfx_chip_name) {
- case UNICHROME_K8M890:
- case UNICHROME_P4M900:
- case UNICHROME_P4M890:
- plvds_chip_info->output_interface = INTERFACE_DFP_LOW;
- break;
- default:
- plvds_chip_info->output_interface = INTERFACE_DFP;
- break;
- }
- break;
- }
-}
-
-bool viafb_lcd_get_mobile_state(bool *mobile)
-{
- unsigned char __iomem *romptr, *tableptr, *biosptr;
- u8 core_base;
- /* Rom address */
- const u32 romaddr = 0x000C0000;
- u16 start_pattern;
-
- biosptr = ioremap(romaddr, 0x10000);
- start_pattern = readw(biosptr);
-
- /* Compare pattern */
- if (start_pattern == 0xAA55) {
- /* Get the start of Table */
- /* 0x1B means BIOS offset position */
- romptr = biosptr + 0x1B;
- tableptr = biosptr + readw(romptr);
-
- /* Get the start of biosver structure */
- /* 18 means BIOS version position. */
- romptr = tableptr + 18;
- romptr = biosptr + readw(romptr);
-
- /* The offset should be 44, but the
- actual image is less three char. */
- /* pRom += 44; */
- romptr += 41;
-
- core_base = readb(romptr);
-
- if (core_base & 0x8)
- *mobile = false;
- else
- *mobile = true;
- /* release memory */
- iounmap(biosptr);
-
- return true;
- } else {
- iounmap(biosptr);
- return false;
- }
-}