linux/drivers/video/fbdev/via/dvi.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.

 */
#include <linux/via-core.h>
#include <linux/via_i2c.h>
#include "global.h"

static void tmds_register_write(int index, u8 data);
static int tmds_register_read(int index);
static int tmds_register_read_bytes(int index, u8 *buff, int buff_len);
static void dvi_get_panel_size_from_DDCv1(
	struct tmds_chip_information *tmds_chip,
	struct tmds_setting_information *tmds_setting);
static int viafb_dvi_query_EDID(void);

static inline bool check_tmds_chip(int device_id_subaddr, int device_id)
{ … }

void viafb_init_dvi_size(struct tmds_chip_information *tmds_chip,
			 struct tmds_setting_information *tmds_setting)
{ … }

bool viafb_tmds_trasmitter_identify(void)
{ … }

static void tmds_register_write(int index, u8 data)
{ … }

static int tmds_register_read(int index)
{ … }

static int tmds_register_read_bytes(int index, u8 *buff, int buff_len)
{ … }

/* DVI Set Mode */
void viafb_dvi_set_mode(const struct fb_var_screeninfo *var,
	u16 cxres, u16 cyres, int iga)
{ … }

/* Sense DVI Connector */
int viafb_dvi_sense(void)
{ … }

/* Query Flat Panel's EDID Table Version Through DVI Connector */
static int viafb_dvi_query_EDID(void)
{ … }

/* Get Panel Size Using EDID1 Table */
static void dvi_get_panel_size_from_DDCv1(
	struct tmds_chip_information *tmds_chip,
	struct tmds_setting_information *tmds_setting)
{ … }

/* If Disable DVI, turn off pad */
void viafb_dvi_disable(void)
{ … }

static void dvi_patch_skew_dvp0(void)
{ … }

static void dvi_patch_skew_dvp_low(void)
{ … }

/* If Enable DVI, turn off pad */
void viafb_dvi_enable(void)
{ … }