1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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 as
12 * the first lines of this file unmodified.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef _DEV_FB_FBREG_H_
30 #define _DEV_FB_FBREG_H_
31
32 #ifdef _KERNEL
33
34 #define V_MAX_ADAPTERS 8 /* XXX */
35
36 /* some macros */
37 #if defined(__amd64__) || defined(__i386__)
38
39 static __inline void
copyw(uint16_t * src,uint16_t * dst,size_t size)40 copyw(uint16_t *src, uint16_t *dst, size_t size)
41 {
42 size >>= 1;
43 while (size--)
44 *dst++ = *src++;
45 }
46 #define bcopy_io(s, d, c) copyw((void*)(s), (void*)(d), (c))
47 #define bcopy_toio(s, d, c) copyw((void*)(s), (void*)(d), (c))
48 #define bcopy_fromio(s, d, c) copyw((void*)(s), (void*)(d), (c))
49 #define bzero_io(d, c) bzero((void *)(d), (c))
50 #define fill_io(p, d, c) fill((p), (void *)(d), (c))
51 #define fillw_io(p, d, c) fillw((p), (void *)(d), (c))
52 #elif defined(__powerpc__)
53
54 #define bcopy_io(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
55 #define bcopy_toio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
56 #define bcopy_fromio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
57 #define bzero_io(d, c) ofwfb_bzero((void *)(d), (c))
58 #define fillw(p, d, c) ofwfb_fillw((p), (void *)(d), (c))
59 #define fillw_io(p, d, c) ofwfb_fillw((p), (void *)(d), (c))
60 #define readw(a) ofwfb_readw((u_int16_t *)(a))
61 #define writew(a, v) ofwfb_writew((u_int16_t *)(a), (v))
62 void ofwfb_bcopy(const void *s, void *d, size_t c);
63 void ofwfb_bzero(void *d, size_t c);
64 void ofwfb_fillw(int pat, void *base, size_t cnt);
65 u_int16_t ofwfb_readw(u_int16_t *addr);
66 void ofwfb_writew(u_int16_t *addr, u_int16_t val);
67
68 #elif defined(__mips__) || defined(__arm__)
69
70 /*
71 * Use amd64/i386-like settings under the assumption that MIPS-based display
72 * drivers will have to add a level of indirection between a syscons-managed
73 * frame buffer and the actual video hardware. We are forced to do this
74 * because syscons doesn't carry around required busspace handles and tags to
75 * use here. This is only really a problem for true VGA devices hooked up to
76 * MIPS, as others will be performing a translation anyway.
77 */
78 #define bcopy_io(s, d, c) memcpy((void *)(d), (void *)(s), (c))
79 #define bcopy_toio(s, d, c) memcpy((void *)(d), (void *)(s), (c))
80 #define bcopy_fromio(s, d, c) memcpy((void *)(d), (void *)(s), (c))
81 #define bzero_io(d, c) memset((void *)(d), 0, (c))
82 #define fill_io(p, d, c) memset((void *)(d), (p), (c))
83 static __inline void
fillw(int val,uint16_t * buf,size_t size)84 fillw(int val, uint16_t *buf, size_t size)
85 {
86 while (size--)
87 *buf++ = val;
88 }
89 #define fillw_io(p, d, c) fillw((p), (void *)(d), (c))
90
91 #if defined(__arm__)
92 #define readw(a) (*(uint16_t*)(a))
93 #define writew(a, v) (*(uint16_t*)(a) = (v))
94 #endif
95
96 #else /* !__i386__ && !__amd64__ && !__powerpc__ */
97 #define bcopy_io(s, d, c) memcpy_io((d), (s), (c))
98 #define bcopy_toio(s, d, c) memcpy_toio((d), (void *)(s), (c))
99 #define bcopy_fromio(s, d, c) memcpy_fromio((void *)(d), (s), (c))
100 #define bzero_io(d, c) memset_io((d), 0, (c))
101 #define fill_io(p, d, c) memset_io((d), (p), (c))
102 #define fillw(p, d, c) memsetw((d), (p), (c))
103 #define fillw_io(p, d, c) memsetw_io((d), (p), (c))
104 #endif /* !__i386__ */
105
106 /* video function table */
107 typedef int vi_probe_t(int unit, video_adapter_t **adpp, void *arg, int flags);
108 typedef int vi_init_t(int unit, video_adapter_t *adp, int flags);
109 typedef int vi_get_info_t(video_adapter_t *adp, int mode, video_info_t *info);
110 typedef int vi_query_mode_t(video_adapter_t *adp, video_info_t *info);
111 typedef int vi_set_mode_t(video_adapter_t *adp, int mode);
112 typedef int vi_save_font_t(video_adapter_t *adp, int page, int size, int width,
113 u_char *data, int c, int count);
114 typedef int vi_load_font_t(video_adapter_t *adp, int page, int size, int width,
115 u_char *data, int c, int count);
116 typedef int vi_show_font_t(video_adapter_t *adp, int page);
117 typedef int vi_save_palette_t(video_adapter_t *adp, u_char *palette);
118 typedef int vi_load_palette_t(video_adapter_t *adp, u_char *palette);
119 typedef int vi_set_border_t(video_adapter_t *adp, int border);
120 typedef int vi_save_state_t(video_adapter_t *adp, void *p, size_t size);
121 typedef int vi_load_state_t(video_adapter_t *adp, void *p);
122 typedef int vi_set_win_org_t(video_adapter_t *adp, off_t offset);
123 typedef int vi_read_hw_cursor_t(video_adapter_t *adp, int *col, int *row);
124 typedef int vi_set_hw_cursor_t(video_adapter_t *adp, int col, int row);
125 typedef int vi_set_hw_cursor_shape_t(video_adapter_t *adp, int base,
126 int height, int celsize, int blink);
127 typedef int vi_blank_display_t(video_adapter_t *adp, int mode);
128 /* defined in sys/fbio.h
129 #define V_DISPLAY_ON 0
130 #define V_DISPLAY_BLANK 1
131 #define V_DISPLAY_STAND_BY 2
132 #define V_DISPLAY_SUSPEND 3
133 */
134 typedef int vi_mmap_t(video_adapter_t *adp, vm_ooffset_t offset,
135 vm_paddr_t *paddr, int prot, vm_memattr_t *memattr);
136 typedef int vi_ioctl_t(video_adapter_t *adp, u_long cmd, caddr_t data);
137 typedef int vi_clear_t(video_adapter_t *adp);
138 typedef int vi_fill_rect_t(video_adapter_t *adp, int val, int x, int y,
139 int cx, int cy);
140 typedef int vi_bitblt_t(video_adapter_t *adp, ...);
141 typedef int vi_diag_t(video_adapter_t *adp, int level);
142 typedef int vi_save_cursor_palette_t(video_adapter_t *adp, u_char *palette);
143 typedef int vi_load_cursor_palette_t(video_adapter_t *adp, u_char *palette);
144 typedef int vi_copy_t(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst,
145 int n);
146 typedef int vi_putp_t(video_adapter_t *adp, vm_offset_t off, u_int32_t p,
147 u_int32_t a, int size, int bpp, int bit_ltor,
148 int byte_ltor);
149 typedef int vi_putc_t(video_adapter_t *adp, vm_offset_t off, u_int8_t c,
150 u_int8_t a);
151 typedef int vi_puts_t(video_adapter_t *adp, vm_offset_t off, u_int16_t *s,
152 int len);
153 typedef int vi_putm_t(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
154 u_int32_t pixel_mask, int size, int width);
155
156 typedef struct video_switch {
157 vi_probe_t *probe;
158 vi_init_t *init;
159 vi_get_info_t *get_info;
160 vi_query_mode_t *query_mode;
161 vi_set_mode_t *set_mode;
162 vi_save_font_t *save_font;
163 vi_load_font_t *load_font;
164 vi_show_font_t *show_font;
165 vi_save_palette_t *save_palette;
166 vi_load_palette_t *load_palette;
167 vi_set_border_t *set_border;
168 vi_save_state_t *save_state;
169 vi_load_state_t *load_state;
170 vi_set_win_org_t *set_win_org;
171 vi_read_hw_cursor_t *read_hw_cursor;
172 vi_set_hw_cursor_t *set_hw_cursor;
173 vi_set_hw_cursor_shape_t *set_hw_cursor_shape;
174 vi_blank_display_t *blank_display;
175 vi_mmap_t *mmap;
176 vi_ioctl_t *ioctl;
177 vi_clear_t *clear;
178 vi_fill_rect_t *fill_rect;
179 vi_bitblt_t *bitblt;
180 int (*reserved1)(void);
181 int (*reserved2)(void);
182 vi_diag_t *diag;
183 vi_save_cursor_palette_t *save_cursor_palette;
184 vi_load_cursor_palette_t *load_cursor_palette;
185 vi_copy_t *copy;
186 vi_putp_t *putp;
187 vi_putc_t *putc;
188 vi_puts_t *puts;
189 vi_putm_t *putm;
190 } video_switch_t;
191
192 #define vidd_probe(unit, adpp, arg, flags) \
193 (*vidsw[(adp)->va_index]->probe)((unit), (adpp), (arg), (flags))
194 #define vidd_init(unit, adp, flags) \
195 (*vidsw[(adp)->va_index]->init)((unit), (adp), (flags))
196 #define vidd_get_info(adp, mode, info) \
197 (*vidsw[(adp)->va_index]->get_info)((adp), (mode), (info))
198 #define vidd_query_mode(adp, mode) \
199 (*vidsw[(adp)->va_index]->query_mode)((adp), (mode))
200 #define vidd_set_mode(adp, mode) \
201 (*vidsw[(adp)->va_index]->set_mode)((adp), (mode))
202 #define vidd_save_font(adp, page, size, width, data, c, count) \
203 (*vidsw[(adp)->va_index]->save_font)((adp), (page), (size), \
204 (width), (data), (c), (count))
205 #define vidd_load_font(adp, page, size, width, data, c, count) \
206 (*vidsw[(adp)->va_index]->load_font)((adp), (page), (size), \
207 (width), (data), (c), (count))
208 #define vidd_show_font(adp, page) \
209 (*vidsw[(adp)->va_index]->show_font)((adp), (page))
210 #define vidd_save_palette(adp, pallete) \
211 (*vidsw[(adp)->va_index]->save_palette)((adp), (pallete))
212 #define vidd_load_palette(adp, pallete) \
213 (*vidsw[(adp)->va_index]->load_palette)((adp), (pallete))
214 #define vidd_set_border(adp, border) \
215 (*vidsw[(adp)->va_index]->set_border)((adp), (border))
216 #define vidd_save_state(adp, p, size) \
217 (*vidsw[(adp)->va_index]->save_state)((adp), (p), (size))
218 #define vidd_load_state(adp, p) \
219 (*vidsw[(adp)->va_index]->load_state)((adp), (p))
220 #define vidd_set_win_org(adp, offset) \
221 (*vidsw[(adp)->va_index]->set_win_org)((adp), (offset))
222 #define vidd_read_hw_cursor(adp, col, row) \
223 (*vidsw[(adp)->va_index]->read_hw_cursor)((adp), (col), (row))
224 #define vidd_set_hw_cursor(adp, col, row) \
225 (*vidsw[(adp)->va_index]->set_hw_cursor)((adp), (col), (row))
226 #define vidd_set_hw_cursor_shape(adp, base, height, celsize, blink) \
227 (*vidsw[(adp)->va_index]->set_hw_cursor_shape)((adp), (base), \
228 (height), (celsize), (blink))
229 #define vidd_blank_display(adp, mode) \
230 (*vidsw[(adp)->va_index]->blank_display)((adp), (mode))
231 #define vidd_mmap(adp, offset, paddr, prot, memattr) \
232 (*vidsw[(adp)->va_index]->mmap)((adp), (offset), (paddr), \
233 (prot), (memattr))
234 #define vidd_ioctl(adp, cmd, data) \
235 (*vidsw[(adp)->va_index]->ioctl)((adp), (cmd), (data))
236 #define vidd_clear(adp) \
237 (*vidsw[(adp)->va_index]->clear)((adp))
238 #define vidd_fill_rect(adp, val, x, y, cx, cy) \
239 (*vidsw[(adp)->va_index]->fill_rect)((adp), (val), (x), (y), \
240 (cx), (cy))
241 #define vidd_bitblt(adp, ...) \
242 (*vidsw[(adp)->va_index]->bitblt)(adp, __VA_ARGS__)
243 #define vidd_diag(adp, level) \
244 (*vidsw[(adp)->va_index]->diag)((adp), (level))
245 #define vidd_save_cursor_palette(adp, palette) \
246 (*vidsw[(adp)->va_index]->save_cursor_palette)((adp), (palette))
247 #define vidd_load_cursor_palette(adp, palette) \
248 (*vidsw[(adp)->va_index]->load_cursor_palette)((adp), (palette))
249 #define vidd_copy(adp, src, dst, n) \
250 (*vidsw[(adp)->va_index]->copy)((adp), (src), (dst), (n))
251 #define vidd_putp(adp, offset, p, a, size, bpp, bit_ltor1, byte_ltor2) \
252 (*vidsw[(adp)->va_index]->putp)((adp), (offset), (p), (a), \
253 (size), (bpp), (bit_ltor1), (bit_ltor2))
254 #define vidd_putc(adp, offset, c, a) \
255 (*vidsw[(adp)->va_index]->putc)((adp), (offset), (c), (a))
256 #define vidd_puts(adp, offset, s, len) \
257 (*vidsw[(adp)->va_index]->puts)((adp), (offset), (s), (len))
258 #define vidd_putm(adp, x, y, pixel_image, pixel_mask, size, width) \
259 (*vidsw[(adp)->va_index]->putm)((adp), (x), (y), (pixel_image), \
260 (pixel_mask), (size), (width))
261
262 /* video driver */
263 typedef struct video_driver {
264 char *name;
265 video_switch_t *vidsw;
266 int (*configure)(int); /* backdoor for the console driver */
267 } video_driver_t;
268
269 #define VIDEO_DRIVER(name, sw, config) \
270 static struct video_driver name##_driver = { \
271 #name, &sw, config \
272 }; \
273 DATA_SET(videodriver_set, name##_driver);
274
275 /* global variables */
276 extern struct video_switch **vidsw;
277
278 /* functions for the video card driver */
279 int vid_register(video_adapter_t *adp);
280 int vid_unregister(video_adapter_t *adp);
281 video_switch_t *vid_get_switch(char *name);
282 void vid_init_struct(video_adapter_t *adp, char *name, int type,
283 int unit);
284
285 /* functions for the video card client */
286 int vid_allocate(char *driver, int unit, void *id);
287 int vid_release(video_adapter_t *adp, void *id);
288 int vid_find_adapter(char *driver, int unit);
289 video_adapter_t *vid_get_adapter(int index);
290
291 /* a backdoor for the console driver to tickle the video driver XXX */
292 int vid_configure(int flags);
293 #define VIO_PROBE_ONLY (1 << 0) /* probe only, don't initialize */
294
295 #ifdef FB_INSTALL_CDEV
296
297 /* virtual frame buffer driver functions */
298 int fb_attach(int unit, video_adapter_t *adp,
299 struct cdevsw *cdevsw);
300 int fb_detach(int unit, video_adapter_t *adp,
301 struct cdevsw *cdevsw);
302
303 /* generic frame buffer cdev driver functions */
304
305 typedef struct genfb_softc {
306 int gfb_flags; /* flag/status bits */
307 #define FB_OPEN (1 << 0)
308 } genfb_softc_t;
309
310 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp,
311 int flag, int mode, struct thread *td);
312 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp,
313 int flag, int mode, struct thread *td);
314 int genfbread(genfb_softc_t *sc, video_adapter_t *adp,
315 struct uio *uio, int flag);
316 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp,
317 struct uio *uio, int flag);
318 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp,
319 u_long cmd, caddr_t arg, int flag, struct thread *td);
320 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp,
321 vm_ooffset_t offset, vm_paddr_t *paddr,
322 int prot, vm_memattr_t *memattr);
323
324 #endif /* FB_INSTALL_CDEV */
325
326 /* generic low-level driver functions */
327
328 void fb_dump_adp_info(char *driver, video_adapter_t *adp, int level);
329 void fb_dump_mode_info(char *driver, video_adapter_t *adp,
330 video_info_t *info, int level);
331 int fb_type(int adp_type);
332 int fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg);
333
334 #endif /* _KERNEL */
335
336 #endif /* !_DEV_FB_FBREG_H_ */
337