1 /*
2  * linux/arch/m68k/console/cvision.h -- CyberVision64 definitions for the
3  *                                      text console driver.
4  *
5  *   Copyright (c) 1998 Alan Bair
6  *
7  * This file is based on the initial port to Linux of grf_cvreg.h:
8  *
9  *   Copyright (c) 1997 Antonio Santos
10  *
11  * The original work is from the NetBSD CyberVision 64 framebuffer driver
12  * and support files (grf_cv.c, grf_cvreg.h, ite_cv.c):
13  * Permission to use the source of this driver was obtained from the
14  * author Michael Teske by Alan Bair.
15  *
16  *   Copyright (c) 1995 Michael Teske
17  *
18  * History:
19  *
20  *
21  *
22  * This file is subject to the terms and conditions of the GNU General Public
23  * License.  See the file COPYING in the main directory of this archive
24  * for more details.
25  */
26 
27 /* s3 commands */
28 #define S3_BITBLT       0xc011
29 #define S3_TWOPOINTLINE 0x2811
30 #define S3_FILLEDRECT   0x40b1
31 
32 #define S3_FIFO_EMPTY 0x0400
33 #define S3_HDW_BUSY   0x0200
34 
35 /* Enhanced register mapping (MMIO mode) */
36 
37 #define S3_READ_SEL      0xbee8 /* offset f */
38 #define S3_MULT_MISC     0xbee8 /* offset e */
39 #define S3_ERR_TERM      0x92e8
40 #define S3_FRGD_COLOR    0xa6e8
41 #define S3_BKGD_COLOR    0xa2e8
42 #define S3_PIXEL_CNTL    0xbee8 /* offset a */
43 #define S3_FRGD_MIX      0xbae8
44 #define S3_BKGD_MIX      0xb6e8
45 #define S3_CUR_Y         0x82e8
46 #define S3_CUR_X         0x86e8
47 #define S3_DESTY_AXSTP   0x8ae8
48 #define S3_DESTX_DIASTP  0x8ee8
49 #define S3_MIN_AXIS_PCNT 0xbee8 /* offset 0 */
50 #define S3_MAJ_AXIS_PCNT 0x96e8
51 #define S3_CMD           0x9ae8
52 #define S3_GP_STAT       0x9ae8
53 #define S3_ADVFUNC_CNTL  0x4ae8
54 #define S3_WRT_MASK      0xaae8
55 #define S3_RD_MASK       0xaee8
56 
57 /* Enhanced register mapping (Packed MMIO mode, write only) */
58 #define S3_ALT_CURXY     0x8100
59 #define S3_ALT_CURXY2    0x8104
60 #define S3_ALT_STEP      0x8108
61 #define S3_ALT_STEP2     0x810c
62 #define S3_ALT_ERR       0x8110
63 #define S3_ALT_CMD       0x8118
64 #define S3_ALT_MIX       0x8134
65 #define S3_ALT_PCNT      0x8148
66 #define S3_ALT_PAT       0x8168
67 
68 /* Drawing modes */
69 #define S3_NOTCUR          0x0000
70 #define S3_LOGICALZERO     0x0001
71 #define S3_LOGICALONE      0x0002
72 #define S3_LEAVEASIS       0x0003
73 #define S3_NOTNEW          0x0004
74 #define S3_CURXORNEW       0x0005
75 #define S3_NOT_CURXORNEW   0x0006
76 #define S3_NEW             0x0007
77 #define S3_NOTCURORNOTNEW  0x0008
78 #define S3_CURORNOTNEW     0x0009
79 #define S3_NOTCURORNEW     0x000a
80 #define S3_CURORNEW        0x000b
81 #define S3_CURANDNEW       0x000c
82 #define S3_NOTCURANDNEW    0x000d
83 #define S3_CURANDNOTNEW    0x000e
84 #define S3_NOTCURANDNOTNEW 0x000f
85 
86 #define S3_CRTC_ADR    0x03d4
87 #define S3_CRTC_DATA   0x03d5
88 
89 #define S3_REG_LOCK2 0x39
90 #define S3_HGC_MODE  0x45
91 
92 #define S3_HWGC_ORGX_H 0x46
93 #define S3_HWGC_ORGX_L 0x47
94 #define S3_HWGC_ORGY_H 0x48
95 #define S3_HWGC_ORGY_L 0x49
96 #define S3_HWGC_DX     0x4e
97 #define S3_HWGC_DY     0x4f
98 
99 #define S3_LAW_CTL 0x58
100 
101 /**************************************************/
102 
103 /* support for a BitBlt operation. The op-codes are identical
104    to X11 GCs */
105 #define	GRFBBOPclear		0x0	/* 0 */
106 #define GRFBBOPand		0x1	/* src AND dst */
107 #define GRFBBOPandReverse	0x2	/* src AND NOT dst */
108 #define GRFBBOPcopy		0x3	/* src */
109 #define GRFBBOPandInverted	0x4	/* NOT src AND dst */
110 #define	GRFBBOPnoop		0x5	/* dst */
111 #define GRFBBOPxor		0x6	/* src XOR dst */
112 #define GRFBBOPor		0x7	/* src OR dst */
113 #define GRFBBOPnor		0x8	/* NOT src AND NOT dst */
114 #define GRFBBOPequiv		0x9	/* NOT src XOR dst */
115 #define GRFBBOPinvert		0xa	/* NOT dst */
116 #define GRFBBOPorReverse	0xb	/* src OR NOT dst */
117 #define GRFBBOPcopyInverted	0xc	/* NOT src */
118 #define GRFBBOPorInverted	0xd	/* NOT src OR dst */
119 #define GRFBBOPnand		0xe	/* NOT src OR NOT dst */
120 #define GRFBBOPset		0xf	/* 1 */
121 
122 
123 /* Write 16 Bit VGA register */
124 #define vgaw16(ba, reg, val) \
125 *((unsigned short *)  (((volatile unsigned char *)ba)+reg)) = val
126 
127 /*
128  * Defines for the used register addresses (mw)
129  *
130  * NOTE: There are some registers that have different addresses when
131  *       in mono or color mode. We only support color mode, and thus
132  *       some addresses won't work in mono-mode!
133  *
134  * General and VGA-registers taken from retina driver. Fixed a few
135  * bugs in it. (SR and GR read address is Port + 1, NOT Port)
136  *
137  */
138 
139 /* General Registers: */
140 #define GREG_MISC_OUTPUT_R	0x03CC
141 #define GREG_MISC_OUTPUT_W	0x03C2
142 #define GREG_FEATURE_CONTROL_R	0x03CA
143 #define GREG_FEATURE_CONTROL_W	0x03DA
144 #define GREG_INPUT_STATUS0_R	0x03C2
145 #define GREG_INPUT_STATUS1_R	0x03DA
146 
147 /* Setup Registers: */
148 #define SREG_OPTION_SELECT	0x0102
149 #define SREG_VIDEO_SUBS_ENABLE	0x46E8
150 
151 /* Attribute Controller: */
152 #define ACT_ADDRESS		0x03C0
153 #define ACT_ADDRESS_R		0x03C1
154 #define ACT_ADDRESS_W		0x03C0
155 #define ACT_ADDRESS_RESET	0x03DA
156 #define ACT_ID_PALETTE0		0x00
157 #define ACT_ID_PALETTE1		0x01
158 #define ACT_ID_PALETTE2		0x02
159 #define ACT_ID_PALETTE3		0x03
160 #define ACT_ID_PALETTE4		0x04
161 #define ACT_ID_PALETTE5		0x05
162 #define ACT_ID_PALETTE6		0x06
163 #define ACT_ID_PALETTE7		0x07
164 #define ACT_ID_PALETTE8		0x08
165 #define ACT_ID_PALETTE9		0x09
166 #define ACT_ID_PALETTE10	0x0A
167 #define ACT_ID_PALETTE11	0x0B
168 #define ACT_ID_PALETTE12	0x0C
169 #define ACT_ID_PALETTE13	0x0D
170 #define ACT_ID_PALETTE14	0x0E
171 #define ACT_ID_PALETTE15	0x0F
172 #define ACT_ID_ATTR_MODE_CNTL	0x10
173 #define ACT_ID_OVERSCAN_COLOR	0x11
174 #define ACT_ID_COLOR_PLANE_ENA	0x12
175 #define ACT_ID_HOR_PEL_PANNING	0x13
176 #define ACT_ID_COLOR_SELECT	0x14
177 
178 /* Graphics Controller: */
179 #define GCT_ADDRESS		0x03CE
180 #define GCT_ADDRESS_R		0x03CF
181 #define GCT_ADDRESS_W		0x03CF
182 #define GCT_ID_SET_RESET	0x00
183 #define GCT_ID_ENABLE_SET_RESET	0x01
184 #define GCT_ID_COLOR_COMPARE	0x02
185 #define GCT_ID_DATA_ROTATE	0x03
186 #define GCT_ID_READ_MAP_SELECT	0x04
187 #define GCT_ID_GRAPHICS_MODE	0x05
188 #define GCT_ID_MISC		0x06
189 #define GCT_ID_COLOR_XCARE	0x07
190 #define GCT_ID_BITMASK		0x08
191 
192 /* Sequencer: */
193 #define SEQ_ADDRESS		0x03C4
194 #define SEQ_ADDRESS_R		0x03C5
195 #define SEQ_ADDRESS_W		0x03C5
196 #define SEQ_ID_RESET		0x00
197 #define SEQ_ID_CLOCKING_MODE	0x01
198 #define SEQ_ID_MAP_MASK		0x02
199 #define SEQ_ID_CHAR_MAP_SELECT	0x03
200 #define SEQ_ID_MEMORY_MODE	0x04
201 #define SEQ_ID_UNKNOWN1		0x05
202 #define SEQ_ID_UNKNOWN2		0x06
203 #define SEQ_ID_UNKNOWN3		0x07
204 /* S3 extensions */
205 #define SEQ_ID_UNLOCK_EXT	0x08
206 #define SEQ_ID_EXT_SEQ_REG9	0x09
207 #define SEQ_ID_BUS_REQ_CNTL	0x0A
208 #define SEQ_ID_EXT_MISC_SEQ	0x0B
209 #define SEQ_ID_UNKNOWN4		0x0C
210 #define SEQ_ID_EXT_SEQ		0x0D
211 #define SEQ_ID_UNKNOWN5		0x0E
212 #define SEQ_ID_UNKNOWN6		0x0F
213 #define SEQ_ID_MCLK_LO		0x10
214 #define SEQ_ID_MCLK_HI		0x11
215 #define SEQ_ID_DCLK_LO		0x12
216 #define SEQ_ID_DCLK_HI		0x13
217 #define SEQ_ID_CLKSYN_CNTL_1	0x14
218 #define SEQ_ID_CLKSYN_CNTL_2	0x15
219 #define SEQ_ID_CLKSYN_TEST_HI	0x16	/* reserved for S3 testing of the */
220 #define SEQ_ID_CLKSYN_TEST_LO	0x17	/*   internal clock synthesizer   */
221 #define SEQ_ID_RAMDAC_CNTL	0x18
222 #define SEQ_ID_MORE_MAGIC	0x1A
223 
224 /* CRT Controller: */
225 #define CRT_ADDRESS		0x03D4
226 #define CRT_ADDRESS_R		0x03D5
227 #define CRT_ADDRESS_W		0x03D5
228 #define CRT_ID_HOR_TOTAL	0x00
229 #define CRT_ID_HOR_DISP_ENA_END	0x01
230 #define CRT_ID_START_HOR_BLANK	0x02
231 #define CRT_ID_END_HOR_BLANK	0x03
232 #define CRT_ID_START_HOR_RETR	0x04
233 #define CRT_ID_END_HOR_RETR	0x05
234 #define CRT_ID_VER_TOTAL	0x06
235 #define CRT_ID_OVERFLOW		0x07
236 #define CRT_ID_PRESET_ROW_SCAN	0x08
237 #define CRT_ID_MAX_SCAN_LINE	0x09
238 #define CRT_ID_CURSOR_START	0x0A
239 #define CRT_ID_CURSOR_END	0x0B
240 #define CRT_ID_START_ADDR_HIGH	0x0C
241 #define CRT_ID_START_ADDR_LOW	0x0D
242 #define CRT_ID_CURSOR_LOC_HIGH	0x0E
243 #define CRT_ID_CURSOR_LOC_LOW	0x0F
244 #define CRT_ID_START_VER_RETR	0x10
245 #define CRT_ID_END_VER_RETR	0x11
246 #define CRT_ID_VER_DISP_ENA_END	0x12
247 #define CRT_ID_SCREEN_OFFSET	0x13
248 #define CRT_ID_UNDERLINE_LOC	0x14
249 #define CRT_ID_START_VER_BLANK	0x15
250 #define CRT_ID_END_VER_BLANK	0x16
251 #define CRT_ID_MODE_CONTROL	0x17
252 #define CRT_ID_LINE_COMPARE	0x18
253 #define CRT_ID_GD_LATCH_RBACK	0x22
254 #define CRT_ID_ACT_TOGGLE_RBACK	0x24
255 #define CRT_ID_ACT_INDEX_RBACK	0x26
256 /* S3 extensions: S3 VGA Registers */
257 #define CRT_ID_DEVICE_HIGH	0x2D
258 #define CRT_ID_DEVICE_LOW	0x2E
259 #define CRT_ID_REVISION 	0x2F
260 #define CRT_ID_CHIP_ID_REV	0x30
261 #define CRT_ID_MEMORY_CONF	0x31
262 #define CRT_ID_BACKWAD_COMP_1	0x32
263 #define CRT_ID_BACKWAD_COMP_2	0x33
264 #define CRT_ID_BACKWAD_COMP_3	0x34
265 #define CRT_ID_REGISTER_LOCK	0x35
266 #define CRT_ID_CONFIG_1 	0x36
267 #define CRT_ID_CONFIG_2 	0x37
268 #define CRT_ID_REGISTER_LOCK_1	0x38
269 #define CRT_ID_REGISTER_LOCK_2	0x39
270 #define CRT_ID_MISC_1		0x3A
271 #define CRT_ID_DISPLAY_FIFO	0x3B
272 #define CRT_ID_LACE_RETR_START	0x3C
273 /* S3 extensions: System Control Registers  */
274 #define CRT_ID_SYSTEM_CONFIG	0x40
275 #define CRT_ID_BIOS_FLAG	0x41
276 #define CRT_ID_LACE_CONTROL	0x42
277 #define CRT_ID_EXT_MODE 	0x43
278 #define CRT_ID_HWGC_MODE	0x45	/* HWGC = Hardware Graphics Cursor */
279 #define CRT_ID_HWGC_ORIGIN_X_HI	0x46
280 #define CRT_ID_HWGC_ORIGIN_X_LO	0x47
281 #define CRT_ID_HWGC_ORIGIN_Y_HI	0x48
282 #define CRT_ID_HWGC_ORIGIN_Y_LO	0x49
283 #define CRT_ID_HWGC_FG_STACK	0x4A
284 #define CRT_ID_HWGC_BG_STACK	0x4B
285 #define CRT_ID_HWGC_START_AD_HI	0x4C
286 #define CRT_ID_HWGC_START_AD_LO	0x4D
287 #define CRT_ID_HWGC_DSTART_X	0x4E
288 #define CRT_ID_HWGC_DSTART_Y	0x4F
289 /* S3 extensions: System Extension Registers  */
290 #define CRT_ID_EXT_SYS_CNTL_1	0x50
291 #define CRT_ID_EXT_SYS_CNTL_2	0x51
292 #define CRT_ID_EXT_BIOS_FLAG_1	0x52
293 #define CRT_ID_EXT_MEM_CNTL_1	0x53
294 #define CRT_ID_EXT_MEM_CNTL_2	0x54
295 #define CRT_ID_EXT_DAC_CNTL	0x55
296 #define CRT_ID_EX_SYNC_1	0x56
297 #define CRT_ID_EX_SYNC_2	0x57
298 #define CRT_ID_LAW_CNTL		0x58	/* LAW = Linear Address Window */
299 #define CRT_ID_LAW_POS_HI	0x59
300 #define CRT_ID_LAW_POS_LO	0x5A
301 #define CRT_ID_GOUT_PORT	0x5C
302 #define CRT_ID_EXT_HOR_OVF	0x5D
303 #define CRT_ID_EXT_VER_OVF	0x5E
304 #define CRT_ID_EXT_MEM_CNTL_3	0x60
305 #define CRT_ID_EX_SYNC_3	0x63
306 #define CRT_ID_EXT_MISC_CNTL	0x65
307 #define CRT_ID_EXT_MISC_CNTL_1	0x66
308 #define CRT_ID_EXT_MISC_CNTL_2	0x67
309 #define CRT_ID_CONFIG_3 	0x68
310 #define CRT_ID_EXT_SYS_CNTL_3	0x69
311 #define CRT_ID_EXT_SYS_CNTL_4	0x6A
312 #define CRT_ID_EXT_BIOS_FLAG_3	0x6B
313 #define CRT_ID_EXT_BIOS_FLAG_4	0x6C
314 
315 /* Enhanced Commands Registers: */
316 #define ECR_SUBSYSTEM_STAT	0x42E8
317 #define ECR_SUBSYSTEM_CNTL	0x42E8
318 #define ECR_ADV_FUNC_CNTL	0x4AE8
319 #define ECR_CURRENT_Y_POS	0x82E8
320 #define ECR_CURRENT_Y_POS2	0x82EA	/* Trio64 only */
321 #define ECR_CURRENT_X_POS	0x86E8
322 #define ECR_CURRENT_X_POS2	0x86EA	/* Trio64 only */
323 #define ECR_DEST_Y__AX_STEP	0x8AE8
324 #define ECR_DEST_Y2__AX_STEP2	0x8AEA	/* Trio64 only */
325 #define ECR_DEST_X__DIA_STEP	0x8EE8
326 #define ECR_DEST_X2__DIA_STEP2	0x8EEA	/* Trio64 only */
327 #define ECR_ERR_TERM		0x92E8
328 #define ECR_ERR_TERM2		0x92EA	/* Trio64 only */
329 #define ECR_MAJ_AXIS_PIX_CNT	0x96E8
330 #define ECR_MAJ_AXIS_PIX_CNT2	0x96EA	/* Trio64 only */
331 #define ECR_GP_STAT		0x9AE8	/* GP = Graphics Processor */
332 #define ECR_DRAW_CMD		0x9AE8
333 #define ECR_DRAW_CMD2		0x9AEA	/* Trio64 only */
334 #define ECR_SHORT_STROKE	0x9EE8
335 #define ECR_BKGD_COLOR		0xA2E8	/* BKGD = Background */
336 #define ECR_FRGD_COLOR		0xA6E8	/* FRGD = Foreground */
337 #define ECR_BITPLANE_WRITE_MASK	0xAAE8
338 #define ECR_BITPLANE_READ_MASK	0xAEE8
339 #define ECR_COLOR_COMPARE	0xB2E8
340 #define ECR_BKGD_MIX		0xB6E8
341 #define ECR_FRGD_MIX		0xBAE8
342 #define ECR_READ_REG_DATA	0xBEE8
343 #define ECR_ID_MIN_AXIS_PIX_CNT	0x00
344 #define ECR_ID_SCISSORS_TOP	0x01
345 #define ECR_ID_SCISSORS_LEFT	0x02
346 #define ECR_ID_SCISSORS_BUTTOM	0x03
347 #define ECR_ID_SCISSORS_RIGHT	0x04
348 #define ECR_ID_PIX_CNTL		0x0A
349 #define ECR_ID_MULT_CNTL_MISC_2	0x0D
350 #define ECR_ID_MULT_CNTL_MISC	0x0E
351 #define ECR_ID_READ_SEL		0x0F
352 #define ECR_PIX_TRANS		0xE2E8
353 #define ECR_PIX_TRANS_EXT	0xE2EA
354 #define ECR_PATTERN_Y		0xEAE8	/* Trio64 only */
355 #define ECR_PATTERN_X		0xEAEA	/* Trio64 only */
356 
357 
358 /* Pass-through */
359 #define PASS_ADDRESS		0x40001
360 #define PASS_ADDRESS_W		0x40001
361 
362 /* Video DAC */
363 #define VDAC_ADDRESS		0x03c8
364 #define VDAC_ADDRESS_W		0x03c8
365 #define VDAC_ADDRESS_R		0x03c7
366 #define VDAC_STATE		0x03c7
367 #define VDAC_DATA		0x03c9
368 #define VDAC_MASK		0x03c6
369 
370 
371 #define WGfx(ba, idx, val) \
372 do { wb_64(ba, GCT_ADDRESS, idx); wb_64(ba, GCT_ADDRESS_W , val); } while (0)
373 
374 #define WSeq(ba, idx, val) \
375 do { wb_64(ba, SEQ_ADDRESS, idx); wb_64(ba, SEQ_ADDRESS_W , val); } while (0)
376 
377 #define WCrt(ba, idx, val) \
378 do { wb_64(ba, CRT_ADDRESS, idx); wb_64(ba, CRT_ADDRESS_W , val); } while (0)
379 
380 #define WAttr(ba, idx, val) \
381 do { \
382   unsigned char tmp;\
383   tmp = rb_64(ba, ACT_ADDRESS_RESET);\
384   wb_64(ba, ACT_ADDRESS_W, idx);\
385   wb_64(ba, ACT_ADDRESS_W, val);\
386 } while (0)
387 
388 #define SetTextPlane(ba, m) \
389 do { \
390   WGfx(ba, GCT_ID_READ_MAP_SELECT, m & 3 );\
391   WSeq(ba, SEQ_ID_MAP_MASK, (1 << (m & 3)));\
392 } while (0)
393 
394      /* --------------------------------- */
395      /* prototypes                        */
396      /* --------------------------------- */
397 
398 inline unsigned char RAttr(volatile unsigned char * board, short idx);
399 inline unsigned char RSeq(volatile unsigned char * board, short idx);
400 inline unsigned char RCrt(volatile unsigned char * board, short idx);
401 inline unsigned char RGfx(volatile unsigned char * board, short idx);
402 inline void cv64_write_port(unsigned short bits,
403 			    volatile unsigned char *board);
404 inline void cvscreen(int toggle, volatile unsigned char *board);
405 inline void gfx_on_off(int toggle, volatile unsigned char *board);
406 #if 0
407 unsigned short cv64_compute_clock(unsigned long freq);
408 int cv_has_4mb(volatile unsigned char * fb);
409 void cv64_board_init(void);
410 void cv64_load_video_mode(struct fb_var_screeninfo *video_mode);
411 #endif
412 
413 void cvision_bitblt(u_short sx, u_short sy, u_short dx, u_short dy, u_short w,
414 		    u_short h);
415 void cvision_clear(u_short dx, u_short dy, u_short w, u_short h, u_short bg);
416