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      1 /*	$NetBSD: grfabs_ccreg.h,v 1.9 2006/03/08 23:46:22 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 Christian E. Hopps
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Christian E. Hopps.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #if ! defined (_GRFABS_CCREG_H)
     34 #define _GRFABS_CCREG_H
     35 
     36 typedef colormap_t *alloc_colormap_func (int);
     37 
     38 typedef struct monitor_data {
     39     LIST_HEAD(modelist, display_mode) modes; /* a list of supported modes. */
     40     dmode_t *current_mode;
     41     u_long    flags;		  /* monitor flags. */
     42 } mdata_t;
     43 
     44 typedef struct display_mode_data {
     45     monitor_t  * monitor;	/* the monitor that owns this mode. */
     46     view_t * current_view;	/* current view to be displayed. */
     47     cop_t  **frames;
     48     u_short    hedley_current;	/* current hedley quadrent. */
     49     u_short    bplcon0;		/* bplcon0 data. */
     50     u_short    std_start_x;
     51     u_short    std_start_y;
     52 #if defined (GRF_ECS) || defined (GRF_AGA)
     53     /* ECS registers. */
     54     u_short   beamcon0;
     55     u_short   hbstart;		/* no modes use the rest of these */
     56     u_short   hbstop;		/* ECS registers. */
     57     u_short   hsstart;
     58     u_short   hsstop;
     59     u_short   vbstart;
     60     u_short   vbstop;
     61     u_short   vsstart;
     62     u_short   vsstop;
     63 #endif
     64     /* some limit stuff. */
     65     dimen_t   max_size;		/* largest fit. */
     66     dimen_t   min_size;		/* smallest fit. */
     67     u_short   min_depth;
     68     u_short   max_depth;
     69     u_long   flags;		/* mode specific flags. */
     70     use_colormap_func *use_colormap;
     71     get_colormap_func *get_colormap;
     72     alloc_colormap_func *alloc_colormap;
     73     display_view_func  *display_view;
     74     vbl_handler_func   *vbl_handler;	/* gets called every vertical blank. */
     75 					/* when this is the current mode.*/
     76 } dmdata_t;
     77 
     78 enum dmode_flag_bits {
     79     DMB_INTERLACE,
     80     DMB_HEDLEY_EXP
     81 };
     82 
     83 enum dmode_flags {
     84     DMF_INTERLACE = 1 << DMB_INTERLACE,
     85     DMF_HEDLEY_EXP = 1 << DMB_HEDLEY_EXP
     86 };
     87 
     88 typedef struct view_data {
     89     dmode_t *mode;		/* the mode for this view */
     90     colormap_t *colormap;
     91     u_long    flags;		/* view specific flags. */
     92 } vdata_t;
     93 
     94 enum view_flag_bits {
     95     VB_DISPLAY,
     96 };
     97 
     98 enum view_flags {
     99     VF_DISPLAY = 1 << VB_DISPLAY,  /* set if view is being displayed */
    100 };
    101 
    102 /*
    103  *  This that are in grfabs_ccglb.c
    104  */
    105 #if defined (GRF_A2024)
    106 #  if defined (GRF_PAL)
    107 extern cop_t std_pal_a2024_copper_list[];
    108 extern int std_pal_a2024_copper_list_len;
    109 extern int std_pal_a2024_copper_list_size;
    110 #  endif
    111 #  if defined (GRF_NTSC)
    112 extern cop_t std_a2024_copper_list[];
    113 extern int std_a2024_copper_list_len;
    114 extern int std_a2024_copper_list_size;
    115 #  endif
    116 extern cop_t std_dlace_copper_list[];
    117 extern int std_dlace_copper_list_len;
    118 extern int std_dlace_copper_list_size;
    119 
    120 extern u_short a2024_color_value_line0[4];
    121 extern u_short a2024_color_value_line1[4];
    122 #endif /* GRF_A2024 */
    123 
    124 #if defined(GRF_AGA)
    125 extern cop_t aga_copper_list[];
    126 extern int aga_copper_list_len;
    127 extern int aga_copper_list_size;
    128 #endif
    129 
    130 extern cop_t std_copper_list[];
    131 extern int std_copper_list_len;
    132 extern int std_copper_list_size;
    133 extern monitor_t *cc_monitor;
    134 extern u_short cc_default_colors[32];
    135 extern u_short cc_a2024_default_colors[4];
    136 
    137 /*
    138  * Misc macros, defines and enums.
    139  */
    140 
    141 #define MDATA(m) ((mdata_t *)(m->data))
    142 #define DMDATA(d) ((dmdata_t *)(d->data))
    143 #define VDATA(v) ((vdata_t *)(v->data))
    144 #define RWDATA(r) ((rwdata_t *)(r->data))
    145 
    146 #if defined (GRF_ECS) || defined (GRF_AGA)
    147 #define CALC_DIWHIGH(hs, vs, he, ve) \
    148         ((u_short)((he&0x100)<<5)|(ve&0x700)|((hs&0x100)>>3)|((vs&0x700)>>8))
    149 #define USE_CON3 0x0001
    150 #else
    151 #define USE_CON3 0x0
    152 #endif
    153 
    154 enum lace_frame_numbers {
    155     F_LACE_LONG,
    156     F_LACE_SHORT,
    157     F_LACE_STORE_LONG,
    158     F_LACE_STORE_SHORT,
    159     F_LACE_TOTAL
    160 };
    161 
    162 enum frame_numbers {
    163     F_LONG,
    164     F_STORE_LONG,
    165     F_TOTAL
    166 };
    167 
    168 #if defined (GRF_A2024)
    169 
    170 /*
    171  * Defines macros and enums for A2024 hedley expansion
    172  */
    173 
    174 enum quad_frame_numbers {
    175     F_QD_QUAD0, F_QD_QUAD1, F_QD_QUAD2, F_QD_QUAD3,
    176     F_QD_STORE_QUAD0, F_QD_STORE_QUAD1, F_QD_STORE_QUAD2, F_QD_STORE_QUAD3,
    177     F_QD_TOTAL
    178 };
    179 
    180 /* -------
    181  * |0 |1 |
    182  * |------
    183  * |2 |3 |
    184  * -------
    185  */
    186 
    187 #define QUAD0_ID 0x0001
    188 #define QUAD1_ID 0x00f1
    189 #define QUAD2_ID 0x0f01
    190 #define QUAD3_ID 0x0ff1
    191 
    192 #define HALF_2024_LINE (512>>3)
    193 #define DIGITAL_RED 0x0800
    194 #define DIGITAL_GREEN 0x0080
    195 #define DIGITAL_BLUE 0x0008
    196 #define DIGITAL_INTENSE 0x0001
    197 
    198 #define A2024_L0_BLACK  (0)
    199 #define A2024_L0_DGREY  (DIGITAL_BLUE)
    200 #define A2024_L0_LGREY  (DIGITAL_RED)
    201 #define A2024_L0_WHITE  (DIGITAL_RED|DIGITAL_BLUE)
    202 
    203 #define A2024_L1_BLACK  (0)
    204 #define A2024_L1_DGREY  (DIGITAL_INTENSE)
    205 #define A2024_L1_LGREY  (DIGITAL_GREEN)
    206 #define A2024_L1_WHITE  (DIGITAL_GREEN|DIGITAL_INTENSE)
    207 
    208 #define A2024_L0_INDEX(color_reg) (((0x4&color_reg)>>1)|(0x1&color_reg))
    209 #define A2024_L1_INDEX(color_reg) (((0x8&color_reg)>>2)|((0x2&color_reg)>>1))
    210 #define A2024_CM_TO_CR(cm,rn) \
    211 	(a2024_color_value_line0[0x3 & (cm)->entry[A2024_L0_INDEX(rn)]] |\
    212 	 a2024_color_value_line1[0x3 & (cm)->entry[A2024_L1_INDEX(rn)]])
    213 #endif /* GRF_A2024 */
    214 
    215 /*
    216  *  Misc defined values for custom chips.
    217  */
    218 
    219 /* ECS stuff */
    220 #define VARVBLANK	0x1000	/* Variable vertical blank enable */
    221 #define LOLDIS		0x0800	/* long line disable */
    222 #define CSCBLANKEN	0x0400	/* redirect composite sync */
    223 #define VARVSYNC	0x0200	/* Variable vertical sync enable */
    224 #define VARHSYNC	0x0100	/* Variable horizontal sync enable */
    225 #define VARBEAM	0x0080	/* variable beam counter enable */
    226 #define DISPLAYDUAL	0x0040	/* use UHRES pointer and standard pointers */
    227 #define DISPLAYPAL	0x0020	/* set decodes to generate PAL display */
    228 #define VARCSYNC	0x0010	/* Variable composite sync enable */
    229 #define CSBLANK	0x0008	/* Composite blank out to CSY* pin */
    230 #define CSYNCTRUE	0x0004	/* composite sync true signal */
    231 #define VSYNCTRUE	0x0002	/* vertical sync true */
    232 #define HSYNCTRUE	0x0001	/* horizontal sync true */
    233 
    234 /* new defines for bplcon0 */
    235 #define USE_BPLCON3	1
    236 
    237 /* new defines for bplcon2 */
    238 #define BPLCON2_ZDCTEN		(1<<10) /* colormapped genlock bit */
    239 #define BPLCON2_ZDBPEN		(1<<11) /* use bitplane as genlock bits */
    240 #define BPLCON2_ZDBPSEL0	(1<<12) /* three bits to select one */
    241 #define BPLCON2_ZDBPSEL1	(1<<13) /* of 8 bitplanes in */
    242 #define BPLCON2_ZDBPSEL2	(1<<14) /* ZDBPEN genlock mode */
    243 
    244 /* defines for bplcon3 register */
    245 #define BPLCON3_EXTBLNKEN	(1<<0)	/* external blank enable */
    246 #define BPLCON3_EXTBLKZD	(1<<1)	/* external blank ored into trnsprncy */
    247 #define BPLCON3_ZDCLKEN	(1<<2)	/* zd pin outputs a 14 MHz clock*/
    248 #define BPLCON3_BRDNTRAN	(1<<4)	/* border is opaque */
    249 #define BPLCON3_BRDNBLNK	(1<<5)	/* border is opaque */
    250 
    251 /* mixture of stuff. */
    252 #define	STANDARD_NTSC_ROWS	262
    253 #define	STANDARD_PAL_ROWS	312
    254 #define	STANDARD_COLORCLOCKS	226
    255 #define	STANDARD_DENISE_MAX	455
    256 #define	STANDARD_DENISE_MIN	93
    257 #define	STANDARD_NTSC_BEAMCON	( 0x0000 )
    258 #define	STANDARD_PAL_BEAMCON	( DISPLAYPAL )
    259 #define	SPECIAL_BEAMCON	( VARVBLANK | LOLDIS | VARVSYNC | VARHSYNC | VARBEAM | CSBLANK | VSYNCTRUE)
    260 
    261 #define	MIN_NTSC_ROW	21
    262 #define	MIN_PAL_ROW	29
    263 #define	STANDARD_VIEW_X	0x81
    264 #define	STANDARD_VIEW_Y	0x2C
    265 #define	STANDARD_HBSTRT	0x06
    266 #define	STANDARD_HSSTRT	0x0B
    267 #define	STANDARD_HSSTOP	0x1C
    268 #define	STANDARD_HBSTOP	0x2C
    269 #define	STANDARD_VBSTRT	0x0122
    270 #define	STANDARD_VSSTRT	0x02A6
    271 #define	STANDARD_VSSTOP	0x03AA
    272 #define	STANDARD_VBSTOP	0x1066
    273 
    274 /*
    275  * Prototypes
    276  */
    277 
    278 #if defined (__STDC__)
    279 /* monitor functions */
    280 monitor_t *cc_init_monitor(void);
    281 void monitor_vbl_handler(monitor_t * m);
    282 dmode_t *get_current_mode(void);
    283 dmode_t *get_next_mode(dmode_t * d);
    284 dmode_t *get_best_mode(dimen_t * size, u_char depth);
    285 bmap_t *alloc_bitmap(u_short width, u_short height, u_short depth, u_short flags);
    286 void free_bitmap(bmap_t * bm);
    287 void cc_load_mode(dmode_t * d);
    288 int cc_init_modes(void);
    289 /* mode functions */
    290 monitor_t *cc_get_monitor(dmode_t * d);
    291 view_t *cc_get_current_view(dmode_t * d);
    292 view_t *cc_alloc_view(dmode_t * mode, dimen_t * dim, u_char depth);
    293 colormap_t *cc_alloc_colormap(int depth);
    294 int cc_colormap_checkvals(colormap_t * vcm, colormap_t * cm, int use);
    295 int cc_get_colormap(view_t * v, colormap_t * cm);
    296 int cc_use_colormap(view_t * v, colormap_t * cm);
    297 
    298 #  if defined (GRF_A2024)
    299 colormap_t *cc_a2024_alloc_colormap(int depth);
    300 int cc_a2024_get_colormap(view_t * v, colormap_t * cm);
    301 int cc_a2024_use_colormap(view_t * v, colormap_t * cm);
    302 #  endif /* GRF_2024 */
    303 
    304 void cc_mode_vbl_handler(dmode_t * d);
    305 void cc_lace_mode_vbl_handler(dmode_t * d);
    306 /* view functions */
    307 void cc_init_view(view_t * v, bmap_t * bm, dmode_t * mode, box_t * dbox);
    308 void cc_free_view(view_t * v);
    309 void cc_remove_view(view_t * v);
    310 dmode_t * cc_get_display_mode(view_t * v);
    311 
    312 #if defined (GRF_SUPER72)
    313 dmode_t *cc_init_super72(void);
    314 void display_super72_view(view_t * v);
    315 #endif /* SUPER72 */
    316 
    317 #  if defined (GRF_NTSC)
    318 dmode_t *cc_init_ntsc_hires(void);
    319 void display_hires_view(view_t * v);
    320 dmode_t *cc_init_ntsc_hires_lace(void);
    321 void display_hires_lace_view(view_t * v);
    322 
    323 #    if defined (GRF_A2024)
    324 dmode_t *cc_init_ntsc_hires_dlace(void);
    325 void display_hires_dlace_view(view_t * v);
    326 dmode_t *cc_init_ntsc_a2024(void);
    327 void display_a2024_view(view_t * v);
    328 void a2024_mode_vbl_handler(dmode_t * d);
    329 #    endif /* GRF_A2024 */
    330 
    331 #    if defined (GRF_AGA)
    332 dmode_t *cc_init_ntsc_aga(void);
    333 void display_aga_view(view_t * v);
    334 #    endif /* GRF_AGA */
    335 #  endif /* GRF_NTSC */
    336 
    337 #  if defined (GRF_PAL)
    338 dmode_t *cc_init_pal_hires(void);
    339 void display_pal_hires_view(view_t * v);
    340 dmode_t *cc_init_pal_hires_lace(void);
    341 void display_pal_hires_lace_view(view_t * v);
    342 
    343 #    if defined (GRF_A2024)
    344 dmode_t *cc_init_pal_hires_dlace(void);
    345 void display_pal_hires_dlace_view(view_t * v);
    346 
    347 dmode_t *cc_init_pal_a2024(void);
    348 void display_pal_a2024_view(view_t * v);
    349 void pal_a2024_mode_vbl_handler(dmode_t * d);
    350 #    endif /* GRF_A2024 */
    351 
    352 #    if defined (GRF_AGA)
    353 dmode_t *cc_init_pal_aga(void);
    354 void display_pal_aga_view(view_t * v);
    355 #    endif /* GRF_AGA */
    356 #  endif /* GRF_PAL */
    357 #endif /* __STDC__ */
    358 
    359 
    360 #endif /* _GRFABS_CCABS_H */
    361