drivers/video/sticore.h

   1 #ifndef STICORE_H
   2 #define STICORE_H
   3
   4 /* generic STI structures & functions */
   5
   6 #if 0
   7 #define DPRINTK(x)      printk x
   8 #else
   9 #define DPRINTK(x)
  10 #endif
  11
  12 #define MAX_STI_ROMS 4          /* max no. of ROMs which this driver handles */
  13
  14 #define STI_REGION_MAX 8        /* hardcoded STI constants */
  15 #define STI_DEV_NAME_LENGTH 32
  16 #define STI_MONITOR_MAX 256
  17
  18 #define STI_FONT_HPROMAN8 1
  19 #define STI_FONT_KANA8 2
  20
  21 /* The latency of the STI functions cannot really be reduced by setting
  22  * this to 0;  STI doesn't seem to be designed to allow calling a different
  23  * function (or the same function with different arguments) after a
  24  * function exited with 1 as return value.
  25  *
  26  * As all of the functions below could be called from interrupt context,
  27  * we have to spin_lock_irqsave around the do { ret = bla(); } while(ret==1)
  28  * block.  Really bad latency there.
  29  *
  30  * Probably the best solution to all this is have the generic code manage
  31  * the screen buffer and a kernel thread to call STI occasionally.
  32  *
  33  * Luckily, the frame buffer guys have the same problem so we can just wait
  34  * for them to fix it and steal their solution.   prumpf
  35  */
  36
  37 #include <asm/io.h>
  38
  39 #define STI_WAIT 1
  40
  41 #define STI_PTR(p)      ( virt_to_phys(p) )
  42 #define PTR_STI(p)      ( phys_to_virt((unsigned long)p) )
  43 #define STI_CALL(func, flags, inptr, outptr, glob_cfg)  \
  44        ({                                               \
  45                pdc_sti_call( func, STI_PTR(flags),      \
  46                                    STI_PTR(inptr),      \
  47                                    STI_PTR(outptr),     \
  48                                    STI_PTR(glob_cfg));  \
  49        })
  50
  51
  52 #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
  53 #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
  54
  55 /* sti_font_xy() use the native font ROM ! */
  56 #define sti_font_x(sti) (PTR_STI(sti->font)->width)
  57 #define sti_font_y(sti) (PTR_STI(sti->font)->height)
  58
  59
  60 /* STI function configuration structs */
  61
  62 typedef union region {
  63         struct {
  64                 u32 offset      : 14;   /* offset in 4kbyte page */
  65                 u32 sys_only    : 1;    /* don't map to user space */
  66                 u32 cache       : 1;    /* map to data cache */
  67                 u32 btlb        : 1;    /* map to block tlb */
  68                 u32 last        : 1;    /* last region in list */
  69                 u32 length      : 14;   /* length in 4kbyte page */
  70         } region_desc;
  71
  72         u32 region;                     /* complete region value */
  73 } region_t;
  74
  75 #define REGION_OFFSET_TO_PHYS( rt, hpa ) \
  76         (((rt).region_desc.offset << 12) + (hpa))
  77
  78 struct sti_glob_cfg_ext {
  79          u8 curr_mon;                   /* current monitor configured */
  80          u8 friendly_boot;              /* in friendly boot mode */
  81         s16 power;                      /* power calculation (in Watts) */
  82         s32 freq_ref;                   /* frequency refrence */
  83         u32 sti_mem_addr;               /* pointer to global sti memory (size=sti_mem_request) */
  84         u32 future_ptr;                 /* pointer to future data */
  85 };
  86
  87 struct sti_glob_cfg {
  88         s32 text_planes;                /* number of planes used for text */
  89         s16 onscreen_x;                 /* screen width in pixels */
  90         s16 onscreen_y;                 /* screen height in pixels */
  91         s16 offscreen_x;                /* offset width in pixels */
  92         s16 offscreen_y;                /* offset height in pixels */
  93         s16 total_x;                    /* frame buffer width in pixels */
  94         s16 total_y;                    /* frame buffer height in pixels */
  95         u32 region_ptrs[STI_REGION_MAX]; /* region pointers */
  96         s32 reent_lvl;                  /* storage for reentry level value */
  97         u32 save_addr;                  /* where to save or restore reentrant state */
  98         u32 ext_ptr;                    /* pointer to extended glob_cfg data structure */
  99 };
 100
 101
 102 /* STI init function structs */
 103
 104 struct sti_init_flags {
 105         u32 wait : 1;           /* should routine idle wait or not */
 106         u32 reset : 1;          /* hard reset the device? */
 107         u32 text : 1;           /* turn on text display planes? */
 108         u32 nontext : 1;        /* turn on non-text display planes? */
 109         u32 clear : 1;          /* clear text display planes? */
 110         u32 cmap_blk : 1;       /* non-text planes cmap black? */
 111         u32 enable_be_timer : 1; /* enable bus error timer */
 112         u32 enable_be_int : 1;  /* enable bus error timer interrupt */
 113         u32 no_chg_tx : 1;      /* don't change text settings */
 114         u32 no_chg_ntx : 1;     /* don't change non-text settings */
 115         u32 no_chg_bet : 1;     /* don't change berr timer settings */
 116         u32 no_chg_bei : 1;     /* don't change berr int settings */
 117         u32 init_cmap_tx : 1;   /* initialize cmap for text planes */
 118         u32 cmt_chg : 1;        /* change current monitor type */
 119         u32 retain_ie : 1;      /* don't allow reset to clear int enables */
 120         u32 caller_bootrom : 1; /* set only by bootrom for each call */
 121         u32 caller_kernel : 1;  /* set only by kernel for each call */
 122         u32 caller_other : 1;   /* set only by non-[BR/K] caller */
 123         u32 pad : 14;           /* pad to word boundary */
 124         u32 future_ptr;         /* pointer to future data */
 125 };
 126
 127 struct sti_init_inptr_ext {
 128         u8  config_mon_type;    /* configure to monitor type */
 129         u8  pad[1];             /* pad to word boundary */
 130         u16 inflight_data;      /* inflight data possible on PCI */
 131         u32 future_ptr;         /* pointer to future data */
 132 };
 133
 134 struct sti_init_inptr {
 135         s32 text_planes;        /* number of planes to use for text */
 136         u32 ext_ptr;            /* pointer to extended init_graph inptr data structure*/
 137 };
 138
 139
 140 struct sti_init_outptr {
 141         s32 errno;              /* error number on failure */
 142         s32 text_planes;        /* number of planes used for text */
 143         u32 future_ptr;         /* pointer to future data */
 144 };
 145
 146
 147
 148 /* STI configuration function structs */
 149
 150 struct sti_conf_flags {
 151         u32 wait : 1;           /* should routine idle wait or not */
 152         u32 pad : 31;           /* pad to word boundary */
 153         u32 future_ptr;         /* pointer to future data */
 154 };
 155
 156 struct sti_conf_inptr {
 157         u32 future_ptr;         /* pointer to future data */
 158 };
 159
 160 struct sti_conf_outptr_ext {
 161         u32 crt_config[3];      /* hardware specific X11/OGL information */
 162         u32 crt_hdw[3];
 163         u32 future_ptr;
 164 };
 165
 166 struct sti_conf_outptr {
 167         s32 errno;              /* error number on failure */
 168         s16 onscreen_x;         /* screen width in pixels */
 169         s16 onscreen_y;         /* screen height in pixels */
 170         s16 offscreen_x;        /* offscreen width in pixels */
 171         s16 offscreen_y;        /* offscreen height in pixels */
 172         s16 total_x;            /* frame buffer width in pixels */
 173         s16 total_y;            /* frame buffer height in pixels */
 174         s32 bits_per_pixel;     /* bits/pixel device has configured */
 175         s32 bits_used;          /* bits which can be accessed */
 176         s32 planes;             /* number of fb planes in system */
 177          u8 dev_name[STI_DEV_NAME_LENGTH]; /* null terminated product name */
 178         u32 attributes;         /* flags denoting attributes */
 179         u32 ext_ptr;            /* pointer to future data */
 180 };
 181
 182 struct sti_rom {
 183          u8 type[4];
 184          u8 res004;
 185          u8 num_mons;
 186          u8 revno[2];
 187         u32 graphics_id[2];
 188
 189         u32 font_start;
 190         u32 statesize;
 191         u32 last_addr;
 192         u32 region_list;
 193
 194         u16 reentsize;
 195         u16 maxtime;
 196         u32 mon_tbl_addr;
 197         u32 user_data_addr;
 198         u32 sti_mem_req;
 199
 200         u32 user_data_size;
 201         u16 power;
 202          u8 bus_support;
 203          u8 ext_bus_support;
 204          u8 alt_code_type;
 205          u8 ext_dd_struct[3];
 206         u32 cfb_addr;
 207
 208         u32 init_graph;
 209         u32 state_mgmt;
 210         u32 font_unpmv;
 211         u32 block_move;
 212         u32 self_test;
 213         u32 excep_hdlr;
 214         u32 inq_conf;
 215         u32 set_cm_entry;
 216         u32 dma_ctrl;
 217          u8 res040[7 * 4];
 218
 219         u32 init_graph_addr;
 220         u32 state_mgmt_addr;
 221         u32 font_unp_addr;
 222         u32 block_move_addr;
 223         u32 self_test_addr;
 224         u32 excep_hdlr_addr;
 225         u32 inq_conf_addr;
 226         u32 set_cm_entry_addr;
 227         u32 image_unpack_addr;
 228         u32 pa_risx_addrs[7];
 229 };
 230
 231 struct sti_rom_font {
 232         u16 first_char;
 233         u16 last_char;
 234          u8 width;
 235          u8 height;
 236          u8 font_type;          /* language type */
 237          u8 bytes_per_char;
 238         u32 next_font;
 239          u8 underline_height;
 240          u8 underline_pos;
 241          u8 res008[2];
 242 };
 243
 244 /* sticore internal font handling */
 245
 246 struct sti_cooked_font {
 247         struct sti_rom_font *raw;
 248         struct sti_cooked_font *next_font;
 249 };
 250
 251 struct sti_cooked_rom {
 252         struct sti_rom *raw;
 253         struct sti_cooked_font *font_start;
 254 };
 255
 256 /* STI font printing function structs */
 257
 258 struct sti_font_inptr {
 259         u32 font_start_addr;    /* address of font start */
 260         s16 index;              /* index into font table of character */
 261         u8 fg_color;            /* foreground color of character */
 262         u8 bg_color;            /* background color of character */
 263         s16 dest_x;             /* X location of character upper left */
 264         s16 dest_y;             /* Y location of character upper left */
 265         u32 future_ptr;         /* pointer to future data */
 266 };
 267
 268 struct sti_font_flags {
 269         u32 wait : 1;           /* should routine idle wait or not */
 270         u32 non_text : 1;       /* font unpack/move in non_text planes =1, text =0 */
 271         u32 pad : 30;           /* pad to word boundary */
 272         u32 future_ptr;         /* pointer to future data */
 273 };
 274
 275 struct sti_font_outptr {
 276         s32 errno;              /* error number on failure */
 277         u32 future_ptr;         /* pointer to future data */
 278 };
 279
 280 /* STI blockmove structs */
 281
 282 struct sti_blkmv_flags {
 283         u32 wait : 1;           /* should routine idle wait or not */
 284         u32 color : 1;          /* change color during move? */
 285         u32 clear : 1;          /* clear during move? */
 286         u32 non_text : 1;       /* block move in non_text planes =1, text =0 */
 287         u32 pad : 28;           /* pad to word boundary */
 288         u32 future_ptr;         /* pointer to future data */
 289 };
 290
 291 struct sti_blkmv_inptr {
 292         u8 fg_color;            /* foreground color after move */
 293         u8 bg_color;            /* background color after move */
 294         s16 src_x;              /* source upper left pixel x location */
 295         s16 src_y;              /* source upper left pixel y location */
 296         s16 dest_x;             /* dest upper left pixel x location */
 297         s16 dest_y;             /* dest upper left pixel y location */
 298         s16 width;              /* block width in pixels */
 299         s16 height;             /* block height in pixels */
 300         u32 future_ptr;         /* pointer to future data */
 301 };
 302
 303 struct sti_blkmv_outptr {
 304         s32 errno;              /* error number on failure */
 305         u32 future_ptr;         /* pointer to future data */
 306 };
 307
 308
 309 /* internal generic STI struct */
 310
 311 struct sti_struct {
 312         spinlock_t lock;
 313
 314         /* the following fields needs to be filled in by the word/byte routines */
 315         int font_width;
 316         int font_height;
 317         /* char **mon_strings; */
 318         int sti_mem_request;
 319         u32 graphics_id[2];
 320
 321         struct sti_cooked_rom *rom;
 322
 323         unsigned long font_unpmv;
 324         unsigned long block_move;
 325         unsigned long init_graph;
 326         unsigned long inq_conf;
 327
 328         /* all following fields are initialized by the generic routines */
 329         int text_planes;
 330         region_t regions[STI_REGION_MAX];
 331         unsigned long regions_phys[STI_REGION_MAX];
 332
 333         struct sti_glob_cfg *glob_cfg;
 334         struct sti_cooked_font *font;   /* ptr to selected font (cooked) */
 335
 336         struct sti_conf_outptr outptr; /* configuration */
 337         struct sti_conf_outptr_ext outptr_ext;
 338
 339         struct pci_dev *pd;
 340
 341         /* PCI data structures (pg. 17ff from sti.pdf) */
 342         u8 rm_entry[16]; /* pci region mapper array == pci config space offset */
 343
 344         /* pointer to the fb_info where this STI device is used */
 345         struct fb_info *info;
 346 };
 347
 348
 349 /* sticore interface functions */
 350
 351 struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
 352
 353 /* functions to call the STI ROM directly */
 354
 355 void sti_putc(struct sti_struct *sti, int c, int y, int x);
 356 void sti_set(struct sti_struct *sti, int src_y, int src_x,
 357              int height, int width, u8 color);
 358 void sti_clear(struct sti_struct *sti, int src_y, int src_x,
 359                int height, int width, int c);
 360 void sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 361                int dst_y, int dst_x, int height, int width);
 362
 363 #endif  /* STICORE_H */