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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __RIVAFB_H
#define __RIVAFB_H
#include <linux/fb.h>
#include <video/vga.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include "riva_hw.h"
/* GGI compatibility macros */
#define NUM_SEQ_REGS 0x05
#define NUM_CRT_REGS 0x41
#define NUM_GRC_REGS 0x09
#define NUM_ATC_REGS 0x15
/* I2C */
#define DDC_SCL_READ_MASK (1 << 2)
#define DDC_SCL_WRITE_MASK (1 << 5)
#define DDC_SDA_READ_MASK (1 << 3)
#define DDC_SDA_WRITE_MASK (1 << 4)
/* holds the state of the VGA core and extended Riva hw state from riva_hw.c.
* From KGI originally. */
struct riva_regs {
u8 attr[NUM_ATC_REGS];
u8 crtc[NUM_CRT_REGS];
u8 gra[NUM_GRC_REGS];
u8 seq[NUM_SEQ_REGS];
u8 misc_output;
RIVA_HW_STATE ext;
};
struct riva_par;
struct riva_i2c_chan {
struct riva_par *par;
unsigned long ddc_base;
struct i2c_adapter adapter;
struct i2c_algo_bit_data algo;
};
struct riva_par {
RIVA_HW_INST riva; /* interface to riva_hw.c */
u32 pseudo_palette[16]; /* default palette */
u32 palette[16]; /* for Riva128 */
u8 __iomem *ctrl_base; /* virtual control register base addr */
unsigned dclk_max; /* max DCLK */
struct riva_regs initial_state; /* initial startup video mode */
struct riva_regs current_state;
#ifdef CONFIG_X86
struct vgastate state;
#endif
struct mutex open_lock;
unsigned int ref_count;
unsigned char *EDID;
unsigned int Chipset;
int forceCRTC;
Bool SecondCRTC;
int FlatPanel;
struct pci_dev *pdev;
int cursor_reset;
int wc_cookie;
struct riva_i2c_chan chan[3];
};
void riva_common_setup(struct riva_par *);
unsigned long riva_get_memlen(struct riva_par *);
unsigned long riva_get_maxdclk(struct riva_par *);
void riva_delete_i2c_busses(struct riva_par *par);
void riva_create_i2c_busses(struct riva_par *par);
int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
#endif /* __RIVAFB_H */
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