viafb: via_utility.c, via_utility.h, vt1636.c, vt1636.h

/*

 * 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"

void viafb_get_device_support_state(u32 *support_state)

{

	*support_state = CRT_Device;

	if (viaparinfo->chip_info->tmds_chip_info.tmds_chip_name == VT1632_TMDS)

		*support_state |= DVI_Device;

	if (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name == VT1631_LVDS)

		*support_state |= LCD_Device;

}

void viafb_get_device_connect_state(u32 *connect_state)

{

	bool mobile = false;

	*connect_state = CRT_Device;

	if (viafb_dvi_sense())

		*connect_state |= DVI_Device;

	viafb_lcd_get_mobile_state(&mobile);

	if (mobile)

		*connect_state |= LCD_Device;

}

bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres)

{

	unsigned int support_state = 0;

	switch (viafb_lcd_panel_id) {

	case LCD_PANEL_ID0_640X480:

		if ((xres < 640) && (yres < 480))

			support_state = true;

		break;

	case LCD_PANEL_ID1_800X600:

		if ((xres < 800) && (yres < 600))

			support_state = true;

		break;

	case LCD_PANEL_ID2_1024X768:

		if ((xres < 1024) && (yres < 768))

			support_state = true;

		break;

	case LCD_PANEL_ID3_1280X768:

		if ((xres < 1280) && (yres < 768))

			support_state = true;

		break;

	case LCD_PANEL_ID4_1280X1024:

		if ((xres < 1280) && (yres < 1024))

			support_state = true;

		break;

	case LCD_PANEL_ID5_1400X1050:

		if ((xres < 1400) && (yres < 1050))

			support_state = true;

		break;

	case LCD_PANEL_ID6_1600X1200:

		if ((xres < 1600) && (yres < 1200))

			support_state = true;

		break;

	case LCD_PANEL_ID7_1366X768:

		if ((xres < 1366) && (yres < 768))

			support_state = true;

		break;

	case LCD_PANEL_ID8_1024X600:

		if ((xres < 1024) && (yres < 600))

			support_state = true;

		break;

	case LCD_PANEL_ID9_1280X800:

		if ((xres < 1280) && (yres < 800))

			support_state = true;

		break;

	case LCD_PANEL_IDA_800X480:

		if ((xres < 800) && (yres < 480))

			support_state = true;

		break;

	case LCD_PANEL_IDB_1360X768:

		if ((xres < 1360) && (yres < 768))

			support_state = true;

		break;

	case LCD_PANEL_IDC_480X640:

		if ((xres < 480) && (yres < 640))

			support_state = true;

		break;

	default:

		support_state = false;

		break;

	}

	return support_state;

}

/*====================================================================*/

/*                      Gamma Function Implementation*/

/*====================================================================*/

void viafb_set_gamma_table(int bpp, unsigned int *gamma_table)

{

	int i, sr1a;

	int active_device_amount = 0;

	int device_status = viafb_DeviceStatus;

	for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) {

		if (device_status & 1)

			active_device_amount++;

		device_status >>= 1;

	}

	/* 8 bpp mode can't adjust gamma */

	if (bpp == 8)

		return ;

	/* Enable Gamma */

	switch (viaparinfo->chip_info->gfx_chip_name) {

	case UNICHROME_CLE266:

	case UNICHROME_K400:

		viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7);

		break;

	case UNICHROME_K800:

	case UNICHROME_PM800:

	case UNICHROME_CN700:

	case UNICHROME_CX700:

	case UNICHROME_K8M890:

	case UNICHROME_P4M890:

	case UNICHROME_P4M900:

		viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7);

		break;

	}

	sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A);

	viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0);

	/* Fill IGA1 Gamma Table */

	outb(0, LUT_INDEX_WRITE);

	for (i = 0; i < 256; i++) {

		outb(gamma_table[i] >> 16, LUT_DATA);

		outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);

		outb(gamma_table[i] & 0xFF, LUT_DATA);

	}

	/* If adjust Gamma value in SAMM, fill IGA1,

	   IGA2 Gamma table simultanous. */

	/* Switch to IGA2 Gamma Table */

	if ((active_device_amount > 1) &&

		!((viaparinfo->chip_info->gfx_chip_name ==

		UNICHROME_CLE266) &&

		(viaparinfo->chip_info->gfx_chip_revision < 15))) {

		viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0);

		viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1);

		/* Fill IGA2 Gamma Table */

		outb(0, LUT_INDEX_WRITE);

		for (i = 0; i < 256; i++) {

			outb(gamma_table[i] >> 16, LUT_DATA);

			outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);

			outb(gamma_table[i] & 0xFF, LUT_DATA);

		}

	}

	viafb_write_reg(SR1A, VIASR, sr1a);

}

void viafb_get_gamma_table(unsigned int *gamma_table)

{

	unsigned char color_r, color_g, color_b;

	unsigned char sr1a = 0;

	int i;

	/* Enable Gamma */

	switch (viaparinfo->chip_info->gfx_chip_name) {

	case UNICHROME_CLE266:

	case UNICHROME_K400:

		viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7);

		break;

	case UNICHROME_K800:

	case UNICHROME_PM800:

	case UNICHROME_CN700:

	case UNICHROME_CX700:

	case UNICHROME_K8M890:

	case UNICHROME_P4M890:

	case UNICHROME_P4M900:

		viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7);

		break;

	}

	sr1a = viafb_read_reg(VIASR, SR1A);

	viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0);

	/* Reading gamma table to get color value */

	outb(0, LUT_INDEX_READ);

	for (i = 0; i < 256; i++) {

		color_r = inb(LUT_DATA);

		color_g = inb(LUT_DATA);

		color_b = inb(LUT_DATA);

		gamma_table[i] =

		    ((((u32) color_r) << 16) |

		     (((u16) color_g) << 8)) | color_b;

	}

	viafb_write_reg(SR1A, VIASR, sr1a);

}

void viafb_get_gamma_support_state(int bpp, unsigned int *support_state)

{

	if (bpp == 8)

		*support_state = None_Device;

	else

		*support_state = CRT_Device | DVI_Device | LCD_Device;

}

int viafb_input_parameter_converter(int parameter_value)

{

	int result;

	if (parameter_value >= 1 && parameter_value <= 9)

		result = 1 << (parameter_value - 1);

	else

		result = 1;

	return result;

}

/*

 * 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.

 */

#ifndef __VIAUTILITY_H__

#define __VIAUTILITY_H__

/* These functions are used to get infomation about device's state */

void viafb_get_device_support_state(u32 *support_state);

void viafb_get_device_connect_state(u32 *connect_state);

bool viafb_lcd_get_support_expand_state(u32 xres, u32 yres);

/* These function are used to access gamma table */

void viafb_set_gamma_table(int bpp, unsigned int *gamma_table);

void viafb_get_gamma_table(unsigned int *gamma_table);

void viafb_get_gamma_support_state(int bpp, unsigned int *support_state);

int viafb_input_parameter_converter(int parameter_value);

#endif /* __VIAUTILITY_H__ */

/*

 * 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->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->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]);

}

/*

 * 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.

 */

#ifndef _VT1636_H_

#define _VT1636_H_

#include "chip.h"

bool viafb_lvds_identify_vt1636(void);

void viafb_init_lvds_vt1636(struct lvds_setting_information

	*plvds_setting_info, struct lvds_chip_information *plvds_chip_info);

void viafb_enable_lvds_vt1636(struct lvds_setting_information

			*plvds_setting_info,

			struct lvds_chip_information *plvds_chip_info);

void viafb_disable_lvds_vt1636(struct lvds_setting_information

			 *plvds_setting_info,

			 struct lvds_chip_information *plvds_chip_info);

void viafb_vt1636_patch_skew_on_vt3324(

	struct lvds_setting_information *plvds_setting_info,

	struct lvds_chip_information *plvds_chip_info);

void viafb_vt1636_patch_skew_on_vt3327(

	struct lvds_setting_information *plvds_setting_info,

	struct lvds_chip_information *plvds_chip_info);

void viafb_vt1636_patch_skew_on_vt3364(

	struct lvds_setting_information *plvds_setting_info,

	struct lvds_chip_information *plvds_chip_info);

#endif