307 lines
7.9 KiB
C
307 lines
7.9 KiB
C
/*
|
|
* 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 "global.h"
|
|
|
|
u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information
|
|
*plvds_setting_info, struct lvds_chip_information *plvds_chip_info,
|
|
u8 index)
|
|
{
|
|
u8 data;
|
|
|
|
viaparinfo->shared->i2c_stuff.i2c_port = plvds_chip_info->i2c_port;
|
|
viafb_i2c_readbyte(plvds_chip_info->lvds_chip_slave_addr, index, &data);
|
|
|
|
return data;
|
|
}
|
|
|
|
void viafb_gpio_i2c_write_mask_lvds(struct lvds_setting_information
|
|
*plvds_setting_info, struct lvds_chip_information
|
|
*plvds_chip_info, struct IODATA io_data)
|
|
{
|
|
int index, data;
|
|
|
|
viaparinfo->shared->i2c_stuff.i2c_port = plvds_chip_info->i2c_port;
|
|
|
|
index = io_data.Index;
|
|
data = viafb_gpio_i2c_read_lvds(plvds_setting_info, plvds_chip_info,
|
|
index);
|
|
data = (data & (~io_data.Mask)) | io_data.Data;
|
|
|
|
viafb_i2c_writebyte(plvds_chip_info->lvds_chip_slave_addr, index, data);
|
|
}
|
|
|
|
void viafb_init_lvds_vt1636(struct lvds_setting_information
|
|
*plvds_setting_info, struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
int reg_num, i;
|
|
|
|
/* Common settings: */
|
|
reg_num = ARRAY_SIZE(COMMON_INIT_TBL_VT1636);
|
|
|
|
for (i = 0; i < reg_num; i++) {
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info,
|
|
COMMON_INIT_TBL_VT1636[i]);
|
|
}
|
|
|
|
/* Input Data Mode Select */
|
|
if (plvds_setting_info->device_lcd_dualedge) {
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info,
|
|
DUAL_CHANNEL_ENABLE_TBL_VT1636[0]);
|
|
} else {
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info,
|
|
SINGLE_CHANNEL_ENABLE_TBL_VT1636[0]);
|
|
}
|
|
|
|
if (plvds_setting_info->LCDDithering) {
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info,
|
|
DITHERING_ENABLE_TBL_VT1636[0]);
|
|
} else {
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info,
|
|
DITHERING_DISABLE_TBL_VT1636[0]);
|
|
}
|
|
}
|
|
|
|
void viafb_enable_lvds_vt1636(struct lvds_setting_information
|
|
*plvds_setting_info,
|
|
struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
|
|
VDD_ON_TBL_VT1636[0]);
|
|
|
|
/* Pad on: */
|
|
switch (plvds_chip_info->output_interface) {
|
|
case INTERFACE_DVP0:
|
|
{
|
|
viafb_write_reg_mask(SR1E, VIASR, 0xC0, 0xC0);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DVP1:
|
|
{
|
|
viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DFP_LOW:
|
|
{
|
|
viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x03);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DFP_HIGH:
|
|
{
|
|
viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x0C);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
void viafb_disable_lvds_vt1636(struct lvds_setting_information
|
|
*plvds_setting_info,
|
|
struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
|
|
VDD_OFF_TBL_VT1636[0]);
|
|
|
|
/* Pad off: */
|
|
switch (plvds_chip_info->output_interface) {
|
|
case INTERFACE_DVP0:
|
|
{
|
|
viafb_write_reg_mask(SR1E, VIASR, 0x00, 0xC0);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DVP1:
|
|
{
|
|
viafb_write_reg_mask(SR1E, VIASR, 0x00, 0x30);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DFP_LOW:
|
|
{
|
|
viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x03);
|
|
break;
|
|
}
|
|
|
|
case INTERFACE_DFP_HIGH:
|
|
{
|
|
viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x0C);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
bool viafb_lvds_identify_vt1636(void)
|
|
{
|
|
u8 Buffer[2];
|
|
|
|
DEBUG_MSG(KERN_INFO "viafb_lvds_identify_vt1636.\n");
|
|
|
|
/* Sense VT1636 LVDS Transmiter */
|
|
viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr =
|
|
VT1636_LVDS_I2C_ADDR;
|
|
|
|
/* Check vendor ID first: */
|
|
viafb_i2c_readbyte((u8) viaparinfo->chip_info->lvds_chip_info.
|
|
lvds_chip_slave_addr,
|
|
0x00, &Buffer[0]);
|
|
viafb_i2c_readbyte((u8) viaparinfo->chip_info->lvds_chip_info.
|
|
lvds_chip_slave_addr,
|
|
0x01, &Buffer[1]);
|
|
|
|
if (!((Buffer[0] == 0x06) && (Buffer[1] == 0x11)))
|
|
return false;
|
|
|
|
/* Check Chip ID: */
|
|
viafb_i2c_readbyte((u8) viaparinfo->chip_info->lvds_chip_info.
|
|
lvds_chip_slave_addr,
|
|
0x02, &Buffer[0]);
|
|
viafb_i2c_readbyte((u8) viaparinfo->chip_info->lvds_chip_info.
|
|
lvds_chip_slave_addr,
|
|
0x03, &Buffer[1]);
|
|
if ((Buffer[0] == 0x45) && (Buffer[1] == 0x33)) {
|
|
viaparinfo->chip_info->lvds_chip_info.lvds_chip_name =
|
|
VT1636_LVDS;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static int get_clk_range_index(u32 Clk)
|
|
{
|
|
if (Clk < DPA_CLK_30M)
|
|
return DPA_CLK_RANGE_30M;
|
|
else if (Clk < DPA_CLK_50M)
|
|
return DPA_CLK_RANGE_30_50M;
|
|
else if (Clk < DPA_CLK_70M)
|
|
return DPA_CLK_RANGE_50_70M;
|
|
else if (Clk < DPA_CLK_100M)
|
|
return DPA_CLK_RANGE_70_100M;
|
|
else if (Clk < DPA_CLK_150M)
|
|
return DPA_CLK_RANGE_100_150M;
|
|
else
|
|
return DPA_CLK_RANGE_150M;
|
|
}
|
|
|
|
static int get_lvds_dpa_setting_index(int panel_size_id,
|
|
struct VT1636_DPA_SETTING *p_vt1636_dpasetting_tbl,
|
|
int tbl_size)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < tbl_size; i++) {
|
|
if (panel_size_id == p_vt1636_dpasetting_tbl->PanelSizeID)
|
|
return i;
|
|
|
|
p_vt1636_dpasetting_tbl++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void set_dpa_vt1636(struct lvds_setting_information
|
|
*plvds_setting_info, struct lvds_chip_information *plvds_chip_info,
|
|
struct VT1636_DPA_SETTING *p_vt1636_dpa_setting)
|
|
{
|
|
struct IODATA io_data;
|
|
|
|
io_data.Index = 0x09;
|
|
io_data.Mask = 0x1F;
|
|
io_data.Data = p_vt1636_dpa_setting->CLK_SEL_ST1;
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info,
|
|
plvds_chip_info, io_data);
|
|
|
|
io_data.Index = 0x08;
|
|
io_data.Mask = 0x0F;
|
|
io_data.Data = p_vt1636_dpa_setting->CLK_SEL_ST2;
|
|
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
|
|
io_data);
|
|
}
|
|
|
|
void viafb_vt1636_patch_skew_on_vt3324(
|
|
struct lvds_setting_information *plvds_setting_info,
|
|
struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
int index, size;
|
|
|
|
DEBUG_MSG(KERN_INFO "viafb_vt1636_patch_skew_on_vt3324.\n");
|
|
|
|
/* Graphics DPA settings: */
|
|
index = get_clk_range_index(plvds_setting_info->vclk);
|
|
viafb_set_dpa_gfx(plvds_chip_info->output_interface,
|
|
&GFX_DPA_SETTING_TBL_VT3324[index]);
|
|
|
|
/* LVDS Transmitter DPA settings: */
|
|
size = ARRAY_SIZE(VT1636_DPA_SETTING_TBL_VT3324);
|
|
index =
|
|
get_lvds_dpa_setting_index(plvds_setting_info->lcd_panel_id,
|
|
VT1636_DPA_SETTING_TBL_VT3324, size);
|
|
set_dpa_vt1636(plvds_setting_info, plvds_chip_info,
|
|
&VT1636_DPA_SETTING_TBL_VT3324[index]);
|
|
}
|
|
|
|
void viafb_vt1636_patch_skew_on_vt3327(
|
|
struct lvds_setting_information *plvds_setting_info,
|
|
struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
int index, size;
|
|
|
|
DEBUG_MSG(KERN_INFO "viafb_vt1636_patch_skew_on_vt3327.\n");
|
|
|
|
/* Graphics DPA settings: */
|
|
index = get_clk_range_index(plvds_setting_info->vclk);
|
|
viafb_set_dpa_gfx(plvds_chip_info->output_interface,
|
|
&GFX_DPA_SETTING_TBL_VT3327[index]);
|
|
|
|
/* LVDS Transmitter DPA settings: */
|
|
size = ARRAY_SIZE(VT1636_DPA_SETTING_TBL_VT3327);
|
|
index =
|
|
get_lvds_dpa_setting_index(plvds_setting_info->lcd_panel_id,
|
|
VT1636_DPA_SETTING_TBL_VT3327, size);
|
|
set_dpa_vt1636(plvds_setting_info, plvds_chip_info,
|
|
&VT1636_DPA_SETTING_TBL_VT3327[index]);
|
|
}
|
|
|
|
void viafb_vt1636_patch_skew_on_vt3364(
|
|
struct lvds_setting_information *plvds_setting_info,
|
|
struct lvds_chip_information *plvds_chip_info)
|
|
{
|
|
int index;
|
|
|
|
DEBUG_MSG(KERN_INFO "viafb_vt1636_patch_skew_on_vt3364.\n");
|
|
|
|
/* Graphics DPA settings: */
|
|
index = get_clk_range_index(plvds_setting_info->vclk);
|
|
viafb_set_dpa_gfx(plvds_chip_info->output_interface,
|
|
&GFX_DPA_SETTING_TBL_VT3364[index]);
|
|
}
|