drivers/staging/sm750fb/sm750.h

   1 #ifndef LYNXDRV_H_
   2 #define LYNXDRV_H_
   3
   4 #define FB_ACCEL_SMI 0xab
   5
   6 #define MHZ(x) ((x) * 1000000)
   7
   8 #define DEFAULT_SM750_CHIP_CLOCK        290
   9 #define DEFAULT_SM750LE_CHIP_CLOCK      333
  10 #ifndef SM750LE_REVISION_ID
  11 #define SM750LE_REVISION_ID ((unsigned char)0xfe)
  12 #endif
  13
  14 enum sm750_pnltype {
  15         sm750_24TFT = 0,        /* 24bit tft */
  16         sm750_dualTFT = 2,      /* dual 18 bit tft */
  17         sm750_doubleTFT = 1,    /* 36 bit double pixel tft */
  18 };
  19
  20 /* vga channel is not concerned  */
  21 enum sm750_dataflow {
  22         sm750_simul_pri,        /* primary => all head */
  23         sm750_simul_sec,        /* secondary => all head */
  24         sm750_dual_normal,      /* primary => panel head and secondary => crt */
  25         sm750_dual_swap,        /* primary => crt head and secondary => panel */
  26 };
  27
  28 enum sm750_channel {
  29         sm750_primary = 0,
  30         /* enum value equal to the register filed data */
  31         sm750_secondary = 1,
  32 };
  33
  34 enum sm750_path {
  35         sm750_panel = 1,
  36         sm750_crt = 2,
  37         sm750_pnc = 3,  /* panel and crt */
  38 };
  39
  40 struct init_status {
  41         ushort powerMode;
  42         /* below three clocks are in unit of MHZ*/
  43         ushort chip_clk;
  44         ushort mem_clk;
  45         ushort master_clk;
  46         ushort setAllEngOff;
  47         ushort resetMemory;
  48 };
  49
  50 struct lynx_accel {
  51         /* base virtual address of DPR registers */
  52         volatile unsigned char __iomem *dprBase;
  53         /* base virtual address of de data port */
  54         volatile unsigned char __iomem *dpPortBase;
  55
  56         /* function fointers */
  57         void (*de_init)(struct lynx_accel *);
  58
  59         int (*de_wait)(void);/* see if hardware ready to work */
  60
  61         int (*de_fillrect)(struct lynx_accel *, u32, u32, u32, u32,
  62                                                 u32, u32, u32, u32, u32);
  63
  64         int (*de_copyarea)(struct lynx_accel *, u32, u32, u32, u32,
  65                                                 u32, u32, u32, u32,
  66                                                 u32, u32, u32, u32);
  67
  68         int (*de_imageblit)(struct lynx_accel *, const char *, u32, u32, u32, u32,
  69                                                                u32, u32, u32, u32,
  70                                                                u32, u32, u32, u32);
  71
  72 };
  73
  74 struct sm750_dev {
  75         /* common members */
  76         u16 devid;
  77         u8 revid;
  78         struct pci_dev *pdev;
  79         struct fb_info *fbinfo[2];
  80         struct lynx_accel accel;
  81         int accel_off;
  82         int dual;
  83         int mtrr_off;
  84         struct{
  85                 int vram;
  86         } mtrr;
  87         /* all smi graphic adaptor got below attributes */
  88         unsigned long vidmem_start;
  89         unsigned long vidreg_start;
  90         __u32 vidmem_size;
  91         __u32 vidreg_size;
  92         void __iomem *pvReg;
  93         unsigned char __iomem *pvMem;
  94         /* locks*/
  95         spinlock_t slock;
  96
  97         struct init_status initParm;
  98         enum sm750_pnltype pnltype;
  99         enum sm750_dataflow dataflow;
 100         int nocrt;
 101
 102         /*
 103          * 0: no hardware cursor
 104          * 1: primary crtc hw cursor enabled,
 105          * 2: secondary crtc hw cursor enabled
 106          * 3: both ctrc hw cursor enabled
 107          */
 108         int hwCursor;
 109 };
 110
 111 struct lynx_cursor {
 112         /* cursor width ,height and size */
 113         int w;
 114         int h;
 115         int size;
 116         /* hardware limitation */
 117         int maxW;
 118         int maxH;
 119         /* base virtual address and offset  of cursor image */
 120         char __iomem *vstart;
 121         int offset;
 122         /* mmio addr of hw cursor */
 123         volatile char __iomem *mmio;
 124 };
 125
 126 struct lynxfb_crtc {
 127         unsigned char __iomem *vCursor; /* virtual address of cursor */
 128         unsigned char __iomem *vScreen; /* virtual address of on_screen */
 129         int oCursor; /* cursor address offset in vidmem */
 130         int oScreen; /* onscreen address offset in vidmem */
 131         int channel;/* which channel this crtc stands for*/
 132         resource_size_t vidmem_size;/* this view's video memory max size */
 133
 134         /* below attributes belong to info->fix, their value depends on specific adaptor*/
 135         u16 line_pad;/* padding information:0,1,2,4,8,16,... */
 136         u16 xpanstep;
 137         u16 ypanstep;
 138         u16 ywrapstep;
 139
 140         void *priv;
 141
 142         /* cursor information */
 143         struct lynx_cursor cursor;
 144 };
 145
 146 struct lynxfb_output {
 147         int dpms;
 148         int paths;
 149         /* which paths(s) this output stands for,for sm750:
 150            paths=1:means output for panel paths
 151            paths=2:means output for crt paths
 152            paths=3:means output for both panel and crt paths
 153         */
 154
 155         int *channel;
 156         /* which channel these outputs linked with,for sm750:
 157            *channel=0 means primary channel
 158            *channel=1 means secondary channel
 159            output->channel ==> &crtc->channel
 160         */
 161         void *priv;
 162
 163         int (*proc_setBLANK)(struct lynxfb_output*, int);
 164 };
 165
 166 struct lynxfb_par {
 167         /* either 0 or 1 for dual head adaptor,0 is the older one registered */
 168         int index;
 169         unsigned int pseudo_palette[256];
 170         struct lynxfb_crtc crtc;
 171         struct lynxfb_output output;
 172         struct fb_info *info;
 173         struct sm750_dev *dev;
 174 };
 175
 176 static inline unsigned long ps_to_hz(unsigned int psvalue)
 177 {
 178         unsigned long long numerator = 1000*1000*1000*1000ULL;
 179         /* 10^12 / picosecond period gives frequency in Hz */
 180         do_div(numerator, psvalue);
 181         return (unsigned long)numerator;
 182 }
 183
 184 int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
 185 int hw_sm750_inithw(struct sm750_dev*, struct pci_dev *);
 186 void hw_sm750_initAccel(struct sm750_dev *);
 187 int hw_sm750_deWait(void);
 188 int hw_sm750le_deWait(void);
 189
 190 int hw_sm750_output_setMode(struct lynxfb_output*, struct fb_var_screeninfo*,
 191                             struct fb_fix_screeninfo*);
 192 int hw_sm750_crtc_checkMode(struct lynxfb_crtc*, struct fb_var_screeninfo*);
 193 int hw_sm750_crtc_setMode(struct lynxfb_crtc*, struct fb_var_screeninfo*,
 194                           struct fb_fix_screeninfo*);
 195 int hw_sm750_setColReg(struct lynxfb_crtc*, ushort, ushort, ushort, ushort);
 196 int hw_sm750_setBLANK(struct lynxfb_output*, int);
 197 int hw_sm750le_setBLANK(struct lynxfb_output*, int);
 198 int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
 199                          const struct fb_var_screeninfo *var,
 200                          const struct fb_info *info);
 201
 202 #endif