drivers/video/riva/rivafb.h

   1 #ifndef __RIVAFB_H
   2 #define __RIVAFB_H
   3
   4 #include <linux/config.h>
   5 #include <linux/fb.h>
   6 #include <video/vga.h>
   7 #include <linux/i2c.h>
   8 #include <linux/i2c-id.h>
   9 #include <linux/i2c-algo-bit.h>
  10
  11 #include "riva_hw.h"
  12
  13 /* GGI compatibility macros */
  14 #define NUM_SEQ_REGS            0x05
  15 #define NUM_CRT_REGS            0x41
  16 #define NUM_GRC_REGS            0x09
  17 #define NUM_ATC_REGS            0x15
  18
  19 /* I2C */
  20 #define DDC_SCL_READ_MASK       (1 << 2)
  21 #define DDC_SCL_WRITE_MASK      (1 << 5)
  22 #define DDC_SDA_READ_MASK       (1 << 3)
  23 #define DDC_SDA_WRITE_MASK      (1 << 4)
  24
  25 /* holds the state of the VGA core and extended Riva hw state from riva_hw.c.
  26  * From KGI originally. */
  27 struct riva_regs {
  28         u8 attr[NUM_ATC_REGS];
  29         u8 crtc[NUM_CRT_REGS];
  30         u8 gra[NUM_GRC_REGS];
  31         u8 seq[NUM_SEQ_REGS];
  32         u8 misc_output;
  33         RIVA_HW_STATE ext;
  34 };
  35
  36 struct riva_par;
  37
  38 struct riva_i2c_chan {
  39         struct riva_par *par;
  40         unsigned long   ddc_base;
  41         struct i2c_adapter adapter;
  42         struct i2c_algo_bit_data algo;
  43 };
  44
  45 struct riva_par {
  46         RIVA_HW_INST riva;      /* interface to riva_hw.c */
  47         u32 pseudo_palette[16]; /* default palette */
  48         u32 palette[16];        /* for Riva128 */
  49         u8 __iomem *ctrl_base;  /* virtual control register base addr */
  50         unsigned dclk_max;      /* max DCLK */
  51
  52         struct riva_regs initial_state; /* initial startup video mode */
  53         struct riva_regs current_state;
  54 #ifdef CONFIG_X86
  55         struct vgastate state;
  56 #endif
  57         atomic_t 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 bus;
  65         int cursor_reset;
  66 #ifdef CONFIG_MTRR
  67         struct { int vram; int vram_valid; } mtrr;
  68 #endif
  69         struct riva_i2c_chan chan[3];
  70 };
  71
  72 void riva_common_setup(struct riva_par *);
  73 unsigned long riva_get_memlen(struct riva_par *);
  74 unsigned long riva_get_maxdclk(struct riva_par *);
  75 void riva_delete_i2c_busses(struct riva_par *par);
  76 void riva_create_i2c_busses(struct riva_par *par);
  77 int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
  78
  79 #endif /* __RIVAFB_H */