LXR linux/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
  15enum 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  */
  22enum 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
  29enum sm750_channel {
  30        sm750_primary = 0,
  31        /* enum value equal to the register filed data */
  32        sm750_secondary = 1,
  33};
  34
  35enum sm750_path {
  36        sm750_panel = 1,
  37        sm750_crt = 2,
  38        sm750_pnc = 3,  /* panel and crt */
  39};
  40
  41struct 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
  51struct 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 *);
  59
  60        int (*de_wait)(void);/* see if hardware ready to work */
  61
  62        int (*de_fillrect)(struct lynx_accel *, u32, u32, u32, u32,
  63                                                u32, u32, u32, u32, u32);
  64
  65        int (*de_copyarea)(struct lynx_accel *, u32, u32, u32, u32,
  66                                                u32, u32, u32, u32,
  67                                                u32, u32, u32, u32);
  68
  69        int (*de_imageblit)(struct lynx_accel *, const char *, u32, u32, u32, u32,
  70                                                               u32, u32, u32, u32,
  71                                                               u32, u32, u32, u32);
  72
  73};
  74
  75struct sm750_dev {
  76        /* common members */
  77        u16 devid;
  78        u8 revid;
  79        struct pci_dev *pdev;
  80        struct fb_info *fbinfo[2];
  81        struct lynx_accel accel;
  82        int accel_off;
  83        int fb_count;
  84        int mtrr_off;
  85        struct{
  86                int vram;
  87        } mtrr;
  88        /* all smi graphic adaptor got below attributes */
  89        unsigned long vidmem_start;
  90        unsigned long vidreg_start;
  91        __u32 vidmem_size;
  92        __u32 vidreg_size;
  93        void __iomem *pvReg;
  94        unsigned char __iomem *pvMem;
  95        /* locks*/
  96        spinlock_t slock;
  97
  98        struct init_status initParm;
  99        enum sm750_pnltype pnltype;
 100        enum sm750_dataflow dataflow;
 101        int nocrt;
 102
 103        /*
 104         * 0: no hardware cursor
 105         * 1: primary crtc hw cursor enabled,
 106         * 2: secondary crtc hw cursor enabled
 107         * 3: both ctrc hw cursor enabled
 108         */
 109        int hwCursor;
 110};
 111
 112struct lynx_cursor {
 113        /* cursor width ,height and size */
 114        int w;
 115        int h;
 116        int size;
 117        /* hardware limitation */
 118        int maxW;
 119        int maxH;
 120        /* base virtual address and offset  of cursor image */
 121        char __iomem *vstart;
 122        int offset;
 123        /* mmio addr of hw cursor */
 124        volatile char __iomem *mmio;
 125};
 126
 127struct lynxfb_crtc {
 128        unsigned char __iomem *vCursor; /* virtual address of cursor */
 129        unsigned char __iomem *vScreen; /* virtual address of on_screen */
 130        int oCursor; /* cursor address offset in vidmem */
 131        int oScreen; /* onscreen address offset in vidmem */
 132        int channel;/* which channel this crtc stands for*/
 133        resource_size_t vidmem_size;/* this view's video memory max size */
 134
 135        /* below attributes belong to info->fix, their value depends on specific adaptor*/
 136        u16 line_pad;/* padding information:0,1,2,4,8,16,... */
 137        u16 xpanstep;
 138        u16 ypanstep;
 139        u16 ywrapstep;
 140
 141        void *priv;
 142
 143        /* cursor information */
 144        struct lynx_cursor cursor;
 145};
 146
 147struct lynxfb_output {
 148        int dpms;
 149        int paths;
 150        /*
 151         * which paths(s) this output stands for,for sm750:
 152         * paths=1:means output for panel paths
 153         * paths=2:means output for crt paths
 154         * paths=3:means output for both panel and crt paths
 155         */
 156
 157        int *channel;
 158        /*
 159         * which channel these outputs linked with,for sm750:
 160         * *channel=0 means primary channel
 161         * *channel=1 means secondary channel
 162         * output->channel ==> &crtc->channel
 163         */
 164        void *priv;
 165
 166        int (*proc_setBLANK)(struct lynxfb_output*, int);
 167};
 168
 169struct lynxfb_par {
 170        /* either 0 or 1 for dual head adaptor,0 is the older one registered */
 171        int index;
 172        unsigned int pseudo_palette[256];
 173        struct lynxfb_crtc crtc;
 174        struct lynxfb_output output;
 175        struct fb_info *info;
 176        struct sm750_dev *dev;
 177};
 178
 179static inline unsigned long ps_to_hz(unsigned int psvalue)
 180{
 181        unsigned long long numerator = 1000 * 1000 * 1000 * 1000ULL;
 182        /* 10^12 / picosecond period gives frequency in Hz */
 183        do_div(numerator, psvalue);
 184        return (unsigned long)numerator;
 185}
 186
 187int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
 188int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
 189void hw_sm750_initAccel(struct sm750_dev *sm750_dev);
 190int hw_sm750_deWait(void);
 191int hw_sm750le_deWait(void);
 192
 193int hw_sm750_output_setMode(struct lynxfb_output *output,
 194                            struct fb_var_screeninfo *var,
 195                            struct fb_fix_screeninfo *fix);
 196
 197int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc,
 198                            struct fb_var_screeninfo *var);
 199
 200int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
 201                          struct fb_var_screeninfo *var,
 202                          struct fb_fix_screeninfo *fix);
 203
 204int hw_sm750_setColReg(struct lynxfb_crtc *crtc, ushort index,
 205                       ushort red, ushort green, ushort blue);
 206
 207int hw_sm750_setBLANK(struct lynxfb_output *output, int blank);
 208int hw_sm750le_setBLANK(struct lynxfb_output *output, int blank);
 209int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
 210                         const struct fb_var_screeninfo *var,
 211                         const struct fb_info *info);
 212
 213#endif
 214