cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rivafb.h (1923B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __RIVAFB_H
      3#define __RIVAFB_H
      4
      5#include <linux/fb.h>
      6#include <video/vga.h>
      7#include <linux/i2c.h>
      8#include <linux/i2c-algo-bit.h>
      9
     10#include "riva_hw.h"
     11
     12/* GGI compatibility macros */
     13#define NUM_SEQ_REGS		0x05
     14#define NUM_CRT_REGS		0x41
     15#define NUM_GRC_REGS		0x09
     16#define NUM_ATC_REGS		0x15
     17
     18/* I2C */
     19#define DDC_SCL_READ_MASK       (1 << 2)
     20#define DDC_SCL_WRITE_MASK      (1 << 5)
     21#define DDC_SDA_READ_MASK       (1 << 3)
     22#define DDC_SDA_WRITE_MASK      (1 << 4)
     23
     24/* holds the state of the VGA core and extended Riva hw state from riva_hw.c.
     25 * From KGI originally. */
     26struct riva_regs {
     27	u8 attr[NUM_ATC_REGS];
     28	u8 crtc[NUM_CRT_REGS];
     29	u8 gra[NUM_GRC_REGS];
     30	u8 seq[NUM_SEQ_REGS];
     31	u8 misc_output;
     32	RIVA_HW_STATE ext;
     33};
     34
     35struct riva_par;
     36
     37struct riva_i2c_chan {
     38	struct riva_par *par;
     39	unsigned long   ddc_base;
     40	struct i2c_adapter adapter;
     41	struct i2c_algo_bit_data algo;
     42};
     43
     44struct riva_par {
     45	RIVA_HW_INST riva;	/* interface to riva_hw.c */
     46	u32 pseudo_palette[16]; /* default palette */
     47	u32 palette[16];        /* for Riva128 */
     48	u8 __iomem *ctrl_base;	/* virtual control register base addr */
     49	unsigned dclk_max;	/* max DCLK */
     50
     51	struct riva_regs initial_state;	/* initial startup video mode */
     52	struct riva_regs current_state;
     53#ifdef CONFIG_X86
     54	struct vgastate state;
     55#endif
     56	struct mutex open_lock;
     57	unsigned int ref_count;
     58	unsigned char *EDID;
     59	unsigned int Chipset;
     60	int forceCRTC;
     61	Bool SecondCRTC;
     62	int FlatPanel;
     63	struct pci_dev *pdev;
     64	int cursor_reset;
     65	int wc_cookie;
     66	struct riva_i2c_chan chan[3];
     67};
     68
     69void riva_common_setup(struct riva_par *);
     70unsigned long riva_get_memlen(struct riva_par *);
     71unsigned long riva_get_maxdclk(struct riva_par *);
     72void riva_delete_i2c_busses(struct riva_par *par);
     73void riva_create_i2c_busses(struct riva_par *par);
     74int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
     75
     76#endif /* __RIVAFB_H */