mirror of
https://github.com/torvalds/linux.git
synced 2024-11-27 06:31:52 +00:00
a65ff76ac8
Various cleanups to rivafb/nvidiafb's I2C code: * Drop useless par->bus. * Refactor I2C bus deletion code. * Drop useless variable initialization. * Remove unneeded include of <linux/i2c-id.h>. * Simplify +1/-1. * Add __devinit tags where possible. [adaplas] The varible initialization are not useless. However, rivafb must check if i2c bus are created properly before reading the EDID block. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
#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;
|
|
#ifdef CONFIG_MTRR
|
|
struct { int vram; int vram_valid; } mtrr;
|
|
#endif
|
|
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 */
|