drivers/staging/sm750fb/sm750.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef LYNXDRV_H_
   3 #define LYNXDRV_H_
   4
   5 #define FB_ACCEL_SMI 0xab
   6
   7 #define MHZ(x) ((x) * 1000000)
   8
   9 #define DEFAULT_SM750_CHIP_CLOCK        290
  10 #define DEFAULT_SM750LE_CHIP_CLOCK      333
  11 #ifndef SM750LE_REVISION_ID
  12 #define SM750LE_REVISION_ID ((unsigned char)0xfe)
  13 #endif
  14
  15 enum sm750_pnltype {
  16         sm750_24TFT = 0,        /* 24bit tft */
  17         sm750_dualTFT = 2,      /* dual 18 bit tft */
  18         sm750_doubleTFT = 1,    /* 36 bit double pixel tft */
  19 };
  20
  21 /* vga channel is not concerned  */
  22 enum sm750_dataflow {
  23         sm750_simul_pri,        /* primary => all head */
  24         sm750_simul_sec,        /* secondary => all head */
  25         sm750_dual_normal,      /* primary => panel head and secondary => crt */
  26         sm750_dual_swap,        /* primary => crt head and secondary => panel */
  27 };
  28
  29 enum sm750_channel {
  30         sm750_primary = 0,
  31         /* enum value equal to the register filed data */
  32         sm750_secondary = 1,
  33 };
  34
  35 enum sm750_path {
  36         sm750_panel = 1,
  37         sm750_crt = 2,
  38         sm750_pnc = 3,  /* panel and crt */
  39 };
  40
  41 struct init_status {
  42         ushort powerMode;
  43         /* below three clocks are in unit of MHZ*/
  44         ushort chip_clk;
  45         ushort mem_clk;
  46         ushort master_clk;
  47         ushort setAllEngOff;
  48         ushort resetMemory;
  49 };
  50
  51 struct lynx_accel {
  52         /* base virtual address of DPR registers */
  53         volatile unsigned char __iomem *dprBase;
  54         /* base virtual address of de data port */
  55         volatile unsigned char __iomem *dpPortBase;
  56
  57         /* function pointers */
  58         void (*de_init)(struct lynx_accel *accel);
  59
  60         int (*de_wait)(void);/* see if hardware ready to work */
  61
  62         int (*de_fillrect)(struct lynx_accel *accel,
  63                            u32 base, u32 pitch, u32 bpp,
  64                            u32 x, u32 y, u32 width, u32 height,
  65                            u32 color, u32 rop);
  66
  67         int (*de_copyarea)(struct lynx_accel *accel,
  68                            u32 s_base, u32 s_pitch,
  69                            u32 sx, u32 sy,
  70                            u32 d_base, u32 d_pitch,
  71                            u32 bpp, u32 dx, u32 dy,
  72                            u32 width, u32 height,
  73                            u32 rop2);
  74
  75         int (*de_imageblit)(struct lynx_accel *accel, const char *p_srcbuf,
  76                             u32 src_delta, u32 start_bit, u32 d_base, u32 d_pitch,
  77                             u32 byte_per_pixel, u32 dx, u32 dy, u32 width,
  78                             u32 height, u32 f_color, u32 b_color, u32 rop2);
  79
  80 };
  81
  82 struct sm750_dev {
  83         /* common members */
  84         u16 devid;
  85         u8 revid;
  86         struct pci_dev *pdev;
  87         struct fb_info *fbinfo[2];
  88         struct lynx_accel accel;
  89         int accel_off;
  90         int fb_count;
  91         int mtrr_off;
  92         struct{
  93                 int vram;
  94         } mtrr;
  95         /* all smi graphic adaptor got below attributes */
  96         unsigned long vidmem_start;
  97         unsigned long vidreg_start;
  98         __u32 vidmem_size;
  99         __u32 vidreg_size;
 100         void __iomem *pvReg;
 101         unsigned char __iomem *pvMem;
 102         /* locks*/
 103         spinlock_t slock;
 104
 105         struct init_status initParm;
 106         enum sm750_pnltype pnltype;
 107         enum sm750_dataflow dataflow;
 108         int nocrt;
 109
 110         /*
 111          * 0: no hardware cursor
 112          * 1: primary crtc hw cursor enabled,
 113          * 2: secondary crtc hw cursor enabled
 114          * 3: both ctrc hw cursor enabled
 115          */
 116         int hwCursor;
 117 };
 118
 119 struct lynx_cursor {
 120         /* cursor width ,height and size */
 121         int w;
 122         int h;
 123         int size;
 124         /* hardware limitation */
 125         int max_w;
 126         int max_h;
 127         /* base virtual address and offset  of cursor image */
 128         char __iomem *vstart;
 129         int offset;
 130         /* mmio addr of hw cursor */
 131         volatile char __iomem *mmio;
 132 };
 133
 134 struct lynxfb_crtc {
 135         unsigned char __iomem *v_cursor; /* virtual address of cursor */
 136         unsigned char __iomem *v_screen; /* virtual address of on_screen */
 137         int o_cursor; /* cursor address offset in vidmem */
 138         int o_screen; /* onscreen address offset in vidmem */
 139         int channel;/* which channel this crtc stands for*/
 140         resource_size_t vidmem_size;/* this view's video memory max size */
 141
 142         /* below attributes belong to info->fix, their value depends on specific adaptor*/
 143         u16 line_pad;/* padding information:0,1,2,4,8,16,... */
 144         u16 xpanstep;
 145         u16 ypanstep;
 146         u16 ywrapstep;
 147
 148         void *priv;
 149
 150         /* cursor information */
 151         struct lynx_cursor cursor;
 152 };
 153
 154 struct lynxfb_output {
 155         int dpms;
 156         int paths;
 157         /*
 158          * which paths(s) this output stands for,for sm750:
 159          * paths=1:means output for panel paths
 160          * paths=2:means output for crt paths
 161          * paths=3:means output for both panel and crt paths
 162          */
 163
 164         int *channel;
 165         /*
 166          * which channel these outputs linked with,for sm750:
 167          * *channel=0 means primary channel
 168          * *channel=1 means secondary channel
 169          * output->channel ==> &crtc->channel
 170          */
 171         void *priv;
 172
 173         int (*proc_setBLANK)(struct lynxfb_output *output, int blank);
 174 };
 175
 176 struct lynxfb_par {
 177         /* either 0 or 1 for dual head adaptor,0 is the older one registered */
 178         int index;
 179         unsigned int pseudo_palette[256];
 180         struct lynxfb_crtc crtc;
 181         struct lynxfb_output output;
 182         struct fb_info *info;
 183         struct sm750_dev *dev;
 184 };
 185
 186 static inline unsigned long ps_to_hz(unsigned int psvalue)
 187 {
 188         unsigned long long numerator = 1000 * 1000 * 1000 * 1000ULL;
 189         /* 10^12 / picosecond period gives frequency in Hz */
 190         do_div(numerator, psvalue);
 191         return (unsigned long)numerator;
 192 }
 193
 194 int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
 195 int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
 196 void hw_sm750_initAccel(struct sm750_dev *sm750_dev);
 197 int hw_sm750_deWait(void);
 198 int hw_sm750le_deWait(void);
 199
 200 int hw_sm750_output_setMode(struct lynxfb_output *output,
 201                             struct fb_var_screeninfo *var,
 202                             struct fb_fix_screeninfo *fix);
 203
 204 int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc,
 205                             struct fb_var_screeninfo *var);
 206
 207 int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
 208                           struct fb_var_screeninfo *var,
 209                           struct fb_fix_screeninfo *fix);
 210
 211 int hw_sm750_setColReg(struct lynxfb_crtc *crtc, ushort index,
 212                        ushort red, ushort green, ushort blue);
 213
 214 int hw_sm750_setBLANK(struct lynxfb_output *output, int blank);
 215 int hw_sm750le_setBLANK(struct lynxfb_output *output, int blank);
 216 int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
 217                          const struct fb_var_screeninfo *var,
 218                          const struct fb_info *info);
 219
 220 #endif