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1/*
2 * Copyright (c) 1995 Mark Tinguely and Jim Lowe
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Mark Tinguely and Jim Lowe
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#ifndef PCI_LATENCY_TIMER
32#define PCI_LATENCY_TIMER 0x0c /* pci timer register */
33#endif
34
35/*
36 * Definitions for the Philips SAA7116 digital video to pci interface.
37 */
38#define BROOKTREE_848_ID 0x0350109E
39
40typedef volatile u_int bregister_t;
41/*
42 * if other persuasion endian, then compiler will probably require that
43 * these next
44 * macros be reversed
45 */
46#define BTBYTE(what) bregister_t what:8; int :24
47#define BTWORD(what) bregister_t what:16; int: 16
48#define BTLONG(what) bregister_t what:32
49
50struct bt848_registers {
51 BTBYTE (dstatus); /* 0, 1,2,3 */
52#define BT848_DSTATUS_PRES (1<<7)
53#define BT848_DSTATUS_HLOC (1<<6)
54#define BT848_DSTATUS_FIELD (1<<5)
55#define BT848_DSTATUS_NUML (1<<4)
56#define BT848_DSTATUS_CSEL (1<<3)
57#define BT848_DSTATUS_LOF (1<<1)
58#define BT848_DSTATUS_COF (1<<0)
59 BTBYTE (iform); /* 4, 5,6,7 */
60#define BT848_IFORM_MUXSEL (0x3<<5)
61# define BT848_IFORM_M_MUX1 (0x03<<5)
62# define BT848_IFORM_M_MUX0 (0x02<<5)
63# define BT848_IFORM_M_MUX2 (0x01<<5)
64# define BT848_IFORM_M_RSVD (0x00<<5)
65#define BT848_IFORM_XTSEL (0x3<<3)
66# define BT848_IFORM_X_AUTO (0x03<<3)
67# define BT848_IFORM_X_XT1 (0x02<<3)
68# define BT848_IFORM_X_XT0 (0x01<<3)
69# define BT848_IFORM_X_RSVD (0x00<<3)
70#define BT848_IFORM_FORMAT (0x7<<0)
71# define BT848_IFORM_F_RSVD (0x7)
72# define BT848_IFORM_F_SECAM (0x6)
73# define BT848_IFORM_F_PALN (0x5)
74# define BT848_IFORM_F_PALM (0x4)
75# define BT848_IFORM_F_PALBDGHI (0x3)
76# define BT848_IFORM_F_NTSCJ (0x2)
77# define BT848_IFORM_F_NTSCM (0x1)
78# define BT848_IFORM_F_AUTO (0x0)
79 BTBYTE (tdec); /* 8, 9,a,b */
80 BTBYTE (e_crop); /* c, d,e,f */
81 BTBYTE (e_vdelay_lo); /* 10, 11,12,13 */
82 BTBYTE (e_vactive_lo); /* 14, 15,16,17 */
83 BTBYTE (e_delay_lo); /* 18, 19,1a,1b */
84 BTBYTE (e_hactive_lo); /* 1c, 1d,1e,1f */
85 BTBYTE (e_hscale_hi); /* 20, 21,22,23 */
86 BTBYTE (e_hscale_lo); /* 24, 25,26,27 */
87 BTBYTE (bright); /* 28, 29,2a,2b */
88 BTBYTE (e_control); /* 2c, 2d,2e,2f */
89#define BT848_E_CONTROL_LNOTCH (1<<7)
90#define BT848_E_CONTROL_COMP (1<<6)
91#define BT848_E_CONTROL_LDEC (1<<5)
92#define BT848_E_CONTROL_CBSENSE (1<<4)
93#define BT848_E_CONTROL_RSVD (1<<3)
94#define BT848_E_CONTROL_CON_MSB (1<<2)
95#define BT848_E_CONTROL_SAT_U_MSB (1<<1)
96#define BT848_E_CONTROL_SAT_V_MSB (1<<0)
97 BTBYTE (contrast_lo); /* 30, 31,32,33 */
98 BTBYTE (sat_u_lo); /* 34, 35,36,37 */
99 BTBYTE (sat_v_lo); /* 38, 39,3a,3b */
100 BTBYTE (hue); /* 3c, 3d,3e,3f */
101 BTBYTE (e_scloop); /* 40, 41,42,43 */
102#define BT848_E_SCLOOP_RSVD1 (1<<7)
103#define BT848_E_SCLOOP_CAGC (1<<6)
104#define BT848_E_SCLOOP_CKILL (1<<5)
105#define BT848_E_SCLOOP_HFILT (0x3<<3)
106# define BT848_E_SCLOOP_HFILT_ICON (0x3<<3)
107# define BT848_E_SCLOOP_HFILT_QCIF (0x2<<3)
108# define BT848_E_SCLOOP_HFILT_CIF (0x1<<3)
109# define BT848_E_SCLOOP_HFILT_AUTO (0x0<<3)
110#define BT848_E_SCLOOP_RSVD0 (0x7<<0)
111 int :32; /* 44, 45,46,47 */
112 BTBYTE (oform); /* 48, 49,4a,4b */
113 BTBYTE (e_vscale_hi); /* 4c, 4d,4e,4f */
114 BTBYTE (e_vscale_lo); /* 50, 51,52,53 */
115 BTBYTE (test); /* 54, 55,56,57 */
116 int :32; /* 58, 59,5a,5b */
117 int :32; /* 5c, 5d,5e,5f */
118 BTLONG (adelay); /* 60, 61,62,63 */
119 BTBYTE (bdelay); /* 64, 65,66,67 */
120 BTBYTE (adc); /* 68, 69,6a,6b */
121#define BT848_ADC_RESERVED (0x80) /* required pattern */
122#define BT848_ADC_SYNC_T (1<<5)
123#define BT848_ADC_AGC_EN (1<<4)
124#define BT848_ADC_CLK_SLEEP (1<<3)
125#define BT848_ADC_Y_SLEEP (1<<2)
126#define BT848_ADC_C_SLEEP (1<<1)
127#define BT848_ADC_CRUSH (1<<0)
128 BTBYTE (e_vtc); /* 6c, 6d,6e,6f */
129 int :32; /* 70, 71,72,73 */
130 int :32; /* 74, 75,76,77 */
131 int :32; /* 78, 79,7a,7b */
132 BTLONG (sreset); /* 7c, 7d,7e,7f */
133 u_char filler[0x8c-0x80];
134 BTBYTE (o_crop); /* 8c, 8d,8e,8f */
135 BTBYTE (o_vdelay_lo); /* 90, 91,92,93 */
136 BTBYTE (o_vactive_lo); /* 94, 95,96,97 */
137 BTBYTE (o_delay_lo); /* 98, 99,9a,9b */
138 BTBYTE (o_hactive_lo); /* 9c, 9d,9e,9f */
139 BTBYTE (o_hscale_hi); /* a0, a1,a2,a3 */
140 BTBYTE (o_hscale_lo); /* a4, a5,a6,a7 */
141 int :32; /* a8, a9,aa,ab */
142 BTBYTE (o_control); /* ac, ad,ae,af */
143#define BT848_O_CONTROL_LNOTCH (1<<7)
144#define BT848_O_CONTROL_COMP (1<<6)
145#define BT848_O_CONTROL_LDEC (1<<5)
146#define BT848_O_CONTROL_CBSENSE (1<<4)
147#define BT848_O_CONTROL_RSVD (1<<3)
148#define BT848_O_CONTROL_CON_MSB (1<<2)
149#define BT848_O_CONTROL_SAT_U_MSB (1<<1)
150#define BT848_O_CONTROL_SAT_V_MSB (1<<0)
151 u_char fillter1[16];
152 BTBYTE (o_scloop); /* c0, c1,c2,c3 */
153#define BT848_O_SCLOOP_RSVD1 (1<<7)
154#define BT848_O_SCLOOP_CAGC (1<<6)
155#define BT848_O_SCLOOP_CKILL (1<<5)
156#define BT848_O_SCLOOP_HFILT (0x3<<3)
157# define BT848_O_SCLOOP_HFILT_ICON (0x3<<3)
158# define BT848_O_SCLOOP_HFILT_QCIF (0x2<<3)
159# define BT848_O_SCLOOP_HFILT_CIF (0x1<<3)
160# define BT848_O_SCLOOP_HFILT_AUTO (0x0<<3)
161#define BT848_O_SCLOOP_RSVD0 (0x7<<0)
162 int :32; /* c4, c5,c6,c7 */
163 int :32; /* c8, c9,ca,cb */
164 BTBYTE (o_vscale_hi); /* cc, cd,ce,cf */
165 BTBYTE (o_vscale_lo); /* d0, d1,d2,d3 */
166 BTBYTE (color_fmt); /* d4, d5,d6,d7 */
167 bregister_t color_ctl_swap :4; /* d8 */
168#define BT848_COLOR_CTL_WSWAP_ODD (1<<3)
169#define BT848_COLOR_CTL_WSWAP_EVEN (1<<2)
170#define BT848_COLOR_CTL_BSWAP_ODD (1<<1)
171#define BT848_COLOR_CTL_BSWAP_EVEN (1<<0)
172 bregister_t color_ctl_gamma :1;
173 bregister_t color_ctl_rgb_ded :1;
174 bregister_t color_ctl_color_bars :1;
175 bregister_t color_ctl_ext_frmrate :1;
176 int :24; /* d9,da,db */
177 BTBYTE (cap_ctl); /* dc, dd,de,df */
178#define BT848_CAP_CTL_DITH_FRAME (1<<4)
179#define BT848_CAP_CTL_VBI_ODD (1<<3)
180#define BT848_CAP_CTL_VBI_EVEN (1<<2)
181#define BT848_CAP_CTL_ODD (1<<1)
182#define BT848_CAP_CTL_EVEN (1<<0)
183 BTBYTE (vbi_pack_size); /* e0, e1,e2,e3 */
184 BTBYTE (vbi_pack_del); /* e4, e5,e6,e7 */
185 int :32; /* e8, e9,ea,eb */
186 BTBYTE (o_vtc); /* ec, ed,ee,ef */
187 u_char filler2[0x100-0xf0];
188 BTLONG (int_stat); /* 100, 101,102,103 */
189 BTLONG (int_mask); /* 104, 105,106,107 */
190#define BT848_INT_RISCS (0xf<<28)
191#define BT848_INT_RISC_EN (1<<27)
192#define BT848_INT_RACK (1<<25)
193#define BT848_INT_FIELD (1<<24)
194#define BT848_INT_MYSTERYBIT (1<<23)
195#define BT848_INT_SCERR (1<<19)
196#define BT848_INT_OCERR (1<<18)
197#define BT848_INT_PABORT (1<<17)
198#define BT848_INT_RIPERR (1<<16)
199#define BT848_INT_PPERR (1<<15)
200#define BT848_INT_FDSR (1<<14)
201#define BT848_INT_FTRGT (1<<13)
202#define BT848_INT_FBUS (1<<12)
203#define BT848_INT_RISCI (1<<11)
204#define BT848_INT_GPINT (1<<9)
205#define BT848_INT_I2CDONE (1<<8)
206#define BT848_INT_RSV1 (1<<7)
207#define BT848_INT_RSV0 (1<<6)
208#define BT848_INT_VPRES (1<<5)
209#define BT848_INT_HLOCK (1<<4)
210#define BT848_INT_OFLOW (1<<3)
211#define BT848_INT_HSYNC (1<<2)
212#define BT848_INT_VSYNC (1<<1)
213#define BT848_INT_FMTCHG (1<<0)
214 int :32; /* 108, 109,10a,10b */
215 BTWORD (gpio_dma_ctl); /* 10c, 10d,10e,10f */
216#define BT848_DMA_CTL_PL23TP4 (0<<6) /* planar1 trigger 4 */
217#define BT848_DMA_CTL_PL23TP8 (1<<6) /* planar1 trigger 8 */
218#define BT848_DMA_CTL_PL23TP16 (2<<6) /* planar1 trigger 16 */
219#define BT848_DMA_CTL_PL23TP32 (3<<6) /* planar1 trigger 32 */
220#define BT848_DMA_CTL_PL1TP4 (0<<4) /* planar1 trigger 4 */
221#define BT848_DMA_CTL_PL1TP8 (1<<4) /* planar1 trigger 8 */
222#define BT848_DMA_CTL_PL1TP16 (2<<4) /* planar1 trigger 16 */
223#define BT848_DMA_CTL_PL1TP32 (3<<4) /* planar1 trigger 32 */
224#define BT848_DMA_CTL_PKTP4 (0<<2) /* packed trigger 4 */
225#define BT848_DMA_CTL_PKTP8 (1<<2) /* packed trigger 8 */
226#define BT848_DMA_CTL_PKTP16 (2<<2) /* packed trigger 16 */
227#define BT848_DMA_CTL_PKTP32 (3<<2) /* packed trigger 32 */
228#define BT848_DMA_CTL_RISC_EN (1<<1)
229#define BT848_DMA_CTL_FIFO_EN (1<<0)
230 BTLONG (i2c_data_ctl); /* 110, 111,112,113 */
231#define BT848_DATA_CTL_I2CDIV (0xf<<4)
232#define BT848_DATA_CTL_I2CSYNC (1<<3)
233#define BT848_DATA_CTL_I2CW3B (1<<2)
234#define BT848_DATA_CTL_I2CSCL (1<<1)
235#define BT848_DATA_CTL_I2CSDA (1<<0)
236 BTLONG (risc_strt_add); /* 114, 115,116,117 */
237 BTLONG (gpio_out_en); /* 118, 119,11a,11b */ /* really 24 bits */
238 BTLONG (gpio_reg_inp); /* 11c, 11d,11e,11f */ /* really 24 bits */
239 BTLONG (risc_count); /* 120, 121,122,123 */
240 u_char filler3[0x200-0x124];
241 BTLONG (gpio_data); /* 200, 201,202,203 */ /* really 24 bits */
242};
243
244typedef volatile struct bt848_registers* bt848_ptr_t;
245
246
247#if 0
248/* force people to be aware of the new struct */
249
250#define BKTR_DSTATUS 0x000
251#define BKTR_IFORM 0x004
252#define BKTR_TDEC 0x008
253#define BKTR_EVEN_CROP 0x00C
254#define BKTR_ODD_CROP 0x08C
255#define BKTR_E_VDELAY_LO 0x010
256#define BKTR_O_VDELAY_LO 0x090
257#define BKTR_E_VACTIVE_LO 0x014
258#define BKTR_O_VACTIVE_LO 0x094
259#define BKTR_E_DELAY_LO 0x018
260#define BKTR_O_DELAY_LO 0x098
261#define BKTR_E_HACTIVE_LO 0x01C
262#define BKTR_O_HACTIVE_LO 0x09C
263#define BKTR_E_HSCALE_HI 0x020
264#define BKTR_O_HSCALE_HI 0x0A0
265#define BKTR_E_HSCALE_LO 0x024
266#define BKTR_O_HSCALE_LO 0x0A4
267#define BKTR_BRIGHT 0x028
268#define BKTR_E_CONTROL 0x02C
269#define BKTR_O_CONTROL 0x0AC
270#define BKTR_CONTRAST_LO 0x030
271#define BKTR_SAT_U_LO 0x034
272#define BKTR_SAT_V_LO 0x038
273#define BKTR_HUE 0x03C
274#define BKTR_E_SCLOOP 0x040
275#define BKTR_O_SCLOOP 0x0C0
276#define BKTR_OFORM 0x048
277#define BKTR_E_VSCALE_HI 0x04C
278#define BKTR_O_VSCALE_HI 0x0CC
279#define BKTR_E_VSCALE_LO 0x050
280#define BKTR_O_VSCALE_LO 0x0D0
281#define BKTR_TEST 0x054
282#define BKTR_ADELAY 0x060
283#define BKTR_BDELAY 0x064
284#define BKTR_ADC 0x068
285#define BKTR_E_VTC 0x06C
286#define BKTR_O_VTC 0x0EC
287#define BKTR_SRESET 0x07C
288#define BKTR_COLOR_FMT 0x0D4
289#define BKTR_COLOR_CTL 0x0D8
290#define BKTR_CAP_CTL 0x0DC
291#define BKTR_VBI_PACK_SIZE 0x0E0
292#define BKTR_VBI_PACK_DEL 0x0E4
293#define BKTR_INT_STAT 0x100
294#define BKTR_INT_MASK 0x104
295#define BKTR_RISC_COUNT 0x120
296#define BKTR_RISC_STRT_ADD 0x114
297#define BKTR_GPIO_DMA_CTL 0x10C
298#define BKTR_GPIO_OUT_EN 0x118
299#define BKTR_GPIO_REG_INP 0x11C
300#define BKTR_GPIO_DATA 0x200
301#define BKTR_I2C_CONTROL 0x110
302
303#endif /* 0 */
304
305/*
306 * device support for onboard tv tuners
307 */
308
309/* description of the LOGICAL tuner */
310struct TVTUNER {
311 int frequency;
312 u_char chnlset;
313 u_char channel;
314 u_char band;
315 u_char afc;
316};
317
318/* description of the PHYSICAL tuner */
319struct TUNER {
320 char* name;
321 u_char type;
322 u_char pllAddr;
323 u_char pllControl;
324 u_char bandLimits[ 2 ];
325 u_char bandAddrs[ 3 ];
326};
327
328/* description of the card */
329#define EEPROMBLOCKSIZE 32
330struct CARDTYPE {
331 char* name;
332 const struct TUNER* tuner;
333 u_char dbx;
334 u_char eepromAddr;
335 u_char eepromSize; /* bytes / EEPROMBLOCKSIZE */
336 u_char audiomuxs[ 5 ]; /* tuner, ext, int/unused,
337 mute, present */
338};
339
340struct format_params {
341 /* Total lines, lines before image, image lines */
342 int vtotal, vdelay, vactive;
343 /* Total unscaled horizontal pixels, pixels before image, image pixels */
344 int htotal, hdelay, hactive;
345 /* visible active horizontal and vertical : 480 640 for NTSC */
346 int horizontal, vertical;
347/* frame rate . for ntsc is 30 frames per second */
348 int frame_rate;
349};
350
351
352typedef struct bktr_clip bktr_clip_t;
353/*
354 * BrookTree 848 info structure, one per bt848 card installed.
355 */
356struct bktr_softc {
357#ifdef __bsdi__
358 struct device bktr_dev; /* base device */
359 struct isadev bktr_id; /* ISA device */
360 struct intrhand bktr_ih; /* interrupt vectoring */
361#define pcici_t pci_devaddr_t
362#endif
363 bt848_ptr_t base; /* Bt848 register physical address */
364 vm_offset_t phys_base; /* Bt848 register physical address */
365 pcici_t tag; /* PCI tag, for doing PCI commands */
366 vm_offset_t bigbuf; /* buffer that holds the captured image */
367 int alloc_pages; /* number of pages in bigbuf */
368 struct proc *proc; /* process to receive raised signal */
369 int signal; /* signal to send to process */
370#define METEOR_SIG_MODE_MASK 0xffff0000
371#define METEOR_SIG_FIELD_MODE 0x00010000
372#define METEOR_SIG_FRAME_MODE 0x00000000
373 vm_offset_t dma_prog;
374 vm_offset_t odd_dma_prog;
375 char dma_prog_loaded;
376 struct meteor_mem *mem; /* used to control sync. multi-frame output */
377 u_long synch_wait; /* wait for free buffer before continuing */
378 short current; /* frame number in buffer (1-frames) */
379 short rows; /* number of rows in a frame */
380 short cols; /* number of columns in a frame */
381 int pixfmt; /* active pixel format (idx into fmt tbl) */
382 int pixfmt_compat; /* Y/N - in meteor pix fmt compat mode */
383 u_long format; /* frame format rgb, yuv, etc.. */
384 short frames; /* number of frames allocated */
385 int frame_size; /* number of bytes in a frame */
386 u_long fifo_errors; /* number of fifo capture errors since open */
387 u_long dma_errors; /* number of DMA capture errors since open */
388 u_long frames_captured;/* number of frames captured since open */
389 u_long even_fields_captured; /* number of even fields captured */
390 u_long odd_fields_captured; /* number of odd fields captured */
391 u_long range_enable; /* enable range checking ?? */
392 u_short capcontrol; /* reg 0xdc capture control */
393 u_short bktr_cap_ctl;
394 volatile u_int flags;
395#define METEOR_INITALIZED 0x00000001
396#define METEOR_OPEN 0x00000002
397#define METEOR_MMAP 0x00000004
398#define METEOR_INTR 0x00000008
399#define METEOR_READ 0x00000010 /* XXX never gets referenced */
400#define METEOR_SINGLE 0x00000020 /* get single frame */
401#define METEOR_CONTIN 0x00000040 /* continuously get frames */
402#define METEOR_SYNCAP 0x00000080 /* synchronously get frames */
403#define METEOR_CAP_MASK 0x000000f0
404#define METEOR_NTSC 0x00000100
405#define METEOR_PAL 0x00000200
406#define METEOR_SECAM 0x00000400
407#define METEOR_AUTOMODE 0x00000800
408#define METEOR_FORM_MASK 0x00000f00
409#define METEOR_DEV0 0x00001000
410#define METEOR_DEV1 0x00002000
411#define METEOR_DEV2 0x00004000
412#define METEOR_DEV3 0x00008000
413#define METEOR_DEV_SVIDEO 0x00006000
414#define METEOR_DEV_RGB 0x0000a000
415#define METEOR_DEV_MASK 0x0000f000
416#define METEOR_RGB16 0x00010000
417#define METEOR_RGB24 0x00020000
418#define METEOR_YUV_PACKED 0x00040000
419#define METEOR_YUV_PLANAR 0x00080000
420#define METEOR_WANT_EVEN 0x00100000 /* want even frame */
421#define METEOR_WANT_ODD 0x00200000 /* want odd frame */
422#define METEOR_WANT_MASK 0x00300000
423#define METEOR_ONLY_EVEN_FIELDS 0x01000000
424#define METEOR_ONLY_ODD_FIELDS 0x02000000
425#define METEOR_ONLY_FIELDS_MASK 0x03000000
426#define METEOR_YUV_422 0x04000000
427#define METEOR_OUTPUT_FMT_MASK 0x040f0000
428#define METEOR_WANT_TS 0x08000000 /* time-stamp a frame */
429#define METEOR_RGB 0x20000000 /* meteor rgb unit */
430#define METEOR_FIELD_MODE 0x80000000
431 u_char tflags;
432#define TUNER_INITALIZED 0x00000001
433#define TUNER_OPEN 0x00000002
434 u_short fps; /* frames per second */
435#ifdef DEVFS
436 void *devfs_token;
437#endif
438 struct meteor_video video;
439 struct TVTUNER tuner;
440 struct CARDTYPE card;
441 u_char audio_mux_select; /* current mode of the audio */
442 u_char audio_mute_state; /* mute state of the audio */
443 u_char format_params;
444 u_long current_sol;
445 u_long current_col;
446 int clip_start;
447 int line_length;
448 int last_y;
449 int y;
450 int y2;
451 int yclip;
452 int yclip2;
453 int max_clip_node;
454 bktr_clip_t clip_list[100];
455};
456
457typedef struct bktr_softc bktr_reg_t;
458typedef struct bktr_softc* bktr_ptr_t;