1/*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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 as
10 *    the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
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
39static __inline void
40copyw(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(__sparc64__)
53static __inline void
54fillw(int val, uint16_t *buf, size_t size)
55{
56	while (size--)
57		*buf++ = val;
58}
59#elif defined(__powerpc__)
60
61#define bcopy_io(s, d, c)	ofwfb_bcopy((void *)(s), (void *)(d), (c))
62#define bcopy_toio(s, d, c)	ofwfb_bcopy((void *)(s), (void *)(d), (c))
63#define bcopy_fromio(s, d, c)	ofwfb_bcopy((void *)(s), (void *)(d), (c))
64#define bzero_io(d, c)		ofwfb_bzero((void *)(d), (c))
65#define fillw(p, d, c)		ofwfb_fillw((p), (void *)(d), (c))
66#define fillw_io(p, d, c)	ofwfb_fillw((p), (void *)(d), (c))
67#define	readw(a)		ofwfb_readw((u_int16_t *)(a))
68#define	writew(a, v)		ofwfb_writew((u_int16_t *)(a), (v))
69void ofwfb_bcopy(const void *s, void *d, size_t c);
70void ofwfb_bzero(void *d, size_t c);
71void ofwfb_fillw(int pat, void *base, size_t cnt);
72u_int16_t ofwfb_readw(u_int16_t *addr);
73void ofwfb_writew(u_int16_t *addr, u_int16_t val);
74
75#elif defined(__mips__) || defined(__arm__)
76
77/*
78 * Use amd64/i386-like settings under the assumption that MIPS-based display
79 * drivers will have to add a level of indirection between a syscons-managed
80 * frame buffer and the actual video hardware.  We are forced to do this
81 * because syscons doesn't carry around required busspace handles and tags to
82 * use here.  This is only really a problem for true VGA devices hooked up to
83 * MIPS, as others will be performing a translation anyway.
84 */
85#define bcopy_io(s, d, c)	memcpy((void *)(d), (void *)(s), (c))
86#define bcopy_toio(s, d, c)	memcpy((void *)(d), (void *)(s), (c))
87#define bcopy_fromio(s, d, c)	memcpy((void *)(d), (void *)(s), (c))
88#define bzero_io(d, c)		memset((void *)(d), 0, (c))
89#define fill_io(p, d, c)	memset((void *)(d), (p), (c))
90static __inline void
91fillw(int val, uint16_t *buf, size_t size)
92{
93	while (size--)
94		*buf++ = val;
95}
96#define fillw_io(p, d, c)	fillw((p), (void *)(d), (c))
97
98#if defined(__arm__)
99#define	readw(a)		(*(uint16_t*)(a))
100#define	writew(a, v)		(*(uint16_t*)(a) = (v))
101#endif
102
103#else /* !__i386__ && !__amd64__ && !__sparc64__ && !__powerpc__ */
104#define bcopy_io(s, d, c)	memcpy_io((d), (s), (c))
105#define bcopy_toio(s, d, c)	memcpy_toio((d), (void *)(s), (c))
106#define bcopy_fromio(s, d, c)	memcpy_fromio((void *)(d), (s), (c))
107#define bzero_io(d, c)		memset_io((d), 0, (c))
108#define fill_io(p, d, c)	memset_io((d), (p), (c))
109#define fillw(p, d, c)		memsetw((d), (p), (c))
110#define fillw_io(p, d, c)	memsetw_io((d), (p), (c))
111#endif /* !__i386__ */
112
113/* video function table */
114typedef int vi_probe_t(int unit, video_adapter_t **adpp, void *arg, int flags);
115typedef int vi_init_t(int unit, video_adapter_t *adp, int flags);
116typedef int vi_get_info_t(video_adapter_t *adp, int mode, video_info_t *info);
117typedef int vi_query_mode_t(video_adapter_t *adp, video_info_t *info);
118typedef int vi_set_mode_t(video_adapter_t *adp, int mode);
119typedef int vi_save_font_t(video_adapter_t *adp, int page, int size, int width,
120			   u_char *data, int c, int count);
121typedef int vi_load_font_t(video_adapter_t *adp, int page, int size, int width,
122			   u_char *data, int c, int count);
123typedef int vi_show_font_t(video_adapter_t *adp, int page);
124typedef int vi_save_palette_t(video_adapter_t *adp, u_char *palette);
125typedef int vi_load_palette_t(video_adapter_t *adp, u_char *palette);
126typedef int vi_set_border_t(video_adapter_t *adp, int border);
127typedef int vi_save_state_t(video_adapter_t *adp, void *p, size_t size);
128typedef int vi_load_state_t(video_adapter_t *adp, void *p);
129typedef int vi_set_win_org_t(video_adapter_t *adp, off_t offset);
130typedef int vi_read_hw_cursor_t(video_adapter_t *adp, int *col, int *row);
131typedef int vi_set_hw_cursor_t(video_adapter_t *adp, int col, int row);
132typedef int vi_set_hw_cursor_shape_t(video_adapter_t *adp, int base,
133				     int height, int celsize, int blink);
134typedef int vi_blank_display_t(video_adapter_t *adp, int mode);
135/* defined in sys/fbio.h
136#define V_DISPLAY_ON		0
137#define V_DISPLAY_BLANK		1
138#define V_DISPLAY_STAND_BY	2
139#define V_DISPLAY_SUSPEND	3
140*/
141typedef int vi_mmap_t(video_adapter_t *adp, vm_ooffset_t offset,
142		      vm_paddr_t *paddr, int prot, vm_memattr_t *memattr);
143typedef int vi_ioctl_t(video_adapter_t *adp, u_long cmd, caddr_t data);
144typedef int vi_clear_t(video_adapter_t *adp);
145typedef int vi_fill_rect_t(video_adapter_t *adp, int val, int x, int y,
146			   int cx, int cy);
147typedef int vi_bitblt_t(video_adapter_t *adp, ...);
148typedef int vi_diag_t(video_adapter_t *adp, int level);
149typedef int vi_save_cursor_palette_t(video_adapter_t *adp, u_char *palette);
150typedef int vi_load_cursor_palette_t(video_adapter_t *adp, u_char *palette);
151typedef int vi_copy_t(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst,
152		      int n);
153typedef int vi_putp_t(video_adapter_t *adp, vm_offset_t off, u_int32_t p,
154		       u_int32_t a, int size, int bpp, int bit_ltor,
155		       int byte_ltor);
156typedef int vi_putc_t(video_adapter_t *adp, vm_offset_t off, u_int8_t c,
157		      u_int8_t a);
158typedef int vi_puts_t(video_adapter_t *adp, vm_offset_t off, u_int16_t *s,
159		       int len);
160typedef int vi_putm_t(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
161		      u_int32_t pixel_mask, int size, int width);
162
163typedef struct video_switch {
164    vi_probe_t		*probe;
165    vi_init_t		*init;
166    vi_get_info_t	*get_info;
167    vi_query_mode_t	*query_mode;
168    vi_set_mode_t	*set_mode;
169    vi_save_font_t	*save_font;
170    vi_load_font_t	*load_font;
171    vi_show_font_t	*show_font;
172    vi_save_palette_t	*save_palette;
173    vi_load_palette_t	*load_palette;
174    vi_set_border_t	*set_border;
175    vi_save_state_t	*save_state;
176    vi_load_state_t	*load_state;
177    vi_set_win_org_t	*set_win_org;
178    vi_read_hw_cursor_t	*read_hw_cursor;
179    vi_set_hw_cursor_t	*set_hw_cursor;
180    vi_set_hw_cursor_shape_t *set_hw_cursor_shape;
181    vi_blank_display_t	*blank_display;
182    vi_mmap_t		*mmap;
183    vi_ioctl_t		*ioctl;
184    vi_clear_t		*clear;
185    vi_fill_rect_t	*fill_rect;
186    vi_bitblt_t		*bitblt;
187    int			(*reserved1)(void);
188    int			(*reserved2)(void);
189    vi_diag_t		*diag;
190    vi_save_cursor_palette_t	*save_cursor_palette;
191    vi_load_cursor_palette_t	*load_cursor_palette;
192    vi_copy_t		*copy;
193    vi_putp_t		*putp;
194    vi_putc_t		*putc;
195    vi_puts_t		*puts;
196    vi_putm_t		*putm;
197} video_switch_t;
198
199#define vidd_probe(unit, adpp, arg, flags)				\
200	(*vidsw[(adp)->va_index]->probe)((unit), (adpp), (arg), (flags))
201#define vidd_init(unit, adp, flags)					\
202	(*vidsw[(adp)->va_index]->init)((unit), (adp), (flags))
203#define vidd_get_info(adp, mode, info)					\
204	(*vidsw[(adp)->va_index]->get_info)((adp), (mode), (info))
205#define vidd_query_mode(adp, mode)					\
206	(*vidsw[(adp)->va_index]->query_mode)((adp), (mode))
207#define vidd_set_mode(adp, mode)					\
208	(*vidsw[(adp)->va_index]->set_mode)((adp), (mode))
209#define vidd_save_font(adp, page, size, width, data, c, count)		\
210	(*vidsw[(adp)->va_index]->save_font)((adp), (page), (size),	\
211	    (width), (data), (c), (count))
212#define vidd_load_font(adp, page, size, width, data, c, count)		\
213	(*vidsw[(adp)->va_index]->load_font)((adp), (page), (size),	\
214	    (width), (data), (c), (count))
215#define vidd_show_font(adp, page)					\
216	(*vidsw[(adp)->va_index]->show_font)((adp), (page))
217#define vidd_save_palette(adp, pallete)					\
218	(*vidsw[(adp)->va_index]->save_palette)((adp), (pallete))
219#define vidd_load_palette(adp, pallete)					\
220	(*vidsw[(adp)->va_index]->load_palette)((adp), (pallete))
221#define vidd_set_border(adp, border)					\
222	(*vidsw[(adp)->va_index]->set_border)((adp), (border))
223#define vidd_save_state(adp, p, size)					\
224	(*vidsw[(adp)->va_index]->save_state)((adp), (p), (size))
225#define vidd_load_state(adp, p)						\
226	(*vidsw[(adp)->va_index]->load_state)((adp), (p))
227#define vidd_set_win_org(adp, offset)					\
228	(*vidsw[(adp)->va_index]->set_win_org)((adp), (offset))
229#define vidd_read_hw_cursor(adp, col, row)				\
230	(*vidsw[(adp)->va_index]->read_hw_cursor)((adp), (col), (row))
231#define vidd_set_hw_cursor(adp, col, row)				\
232	(*vidsw[(adp)->va_index]->set_hw_cursor)((adp), (col), (row))
233#define vidd_set_hw_cursor_shape(adp, base, height, celsize, blink)	\
234	(*vidsw[(adp)->va_index]->set_hw_cursor_shape)((adp), (base),	\
235	    (height), (celsize), (blink))
236#define vidd_blank_display(adp, mode)					\
237	(*vidsw[(adp)->va_index]->blank_display)((adp), (mode))
238#define vidd_mmap(adp, offset, paddr, prot, memattr)			\
239	(*vidsw[(adp)->va_index]->mmap)((adp), (offset), (paddr),	\
240	    (prot), (memattr))
241#define vidd_ioctl(adp, cmd, data)					\
242	(*vidsw[(adp)->va_index]->ioctl)((adp), (cmd), (data))
243#define vidd_clear(adp)							\
244	(*vidsw[(adp)->va_index]->clear)((adp))
245#define vidd_fill_rect(adp, val, x, y, cx, cy)				\
246	(*vidsw[(adp)->va_index]->fill_rect)((adp), (val), (x), (y),	\
247	    (cx), (cy))
248#define vidd_bitblt(adp, ...)						\
249	(*vidsw[(adp)->va_index]->bitblt)(adp, __VA_ARGS__)
250#define vidd_diag(adp, level)						\
251	(*vidsw[(adp)->va_index]->diag)((adp), (level))
252#define vidd_save_cursor_palette(adp, palette)				\
253	(*vidsw[(adp)->va_index]->save_cursor_palette)((adp), (palette))
254#define vidd_load_cursor_palette(adp, palette)				\
255	(*vidsw[(adp)->va_index]->load_cursor_palette)((adp), (palette))
256#define vidd_copy(adp, src, dst, n)					\
257	(*vidsw[(adp)->va_index]->copy)((adp), (src), (dst), (n))
258#define vidd_putp(adp, offset, p, a, size, bpp, bit_ltor1, byte_ltor2)	\
259	(*vidsw[(adp)->va_index]->putp)((adp), (offset), (p), (a), 	\
260	    (size), (bpp), (bit_ltor1), (bit_ltor2))
261#define vidd_putc(adp, offset, c, a)					\
262	(*vidsw[(adp)->va_index]->putc)((adp), (offset), (c), (a))
263#define vidd_puts(adp, offset, s, len)					\
264	(*vidsw[(adp)->va_index]->puts)((adp), (offset), (s), (len))
265#define vidd_putm(adp, x, y, pixel_image, pixel_mask, size, width)	\
266	(*vidsw[(adp)->va_index]->putm)((adp), (x), (y), (pixel_image),	\
267	    (pixel_mask), (size), (width))
268
269/* video driver */
270typedef struct video_driver {
271    char		*name;
272    video_switch_t	*vidsw;
273    int			(*configure)(int); /* backdoor for the console driver */
274} video_driver_t;
275
276#define VIDEO_DRIVER(name, sw, config)			\
277	static struct video_driver name##_driver = {	\
278		#name, &sw, config			\
279	};						\
280	DATA_SET(videodriver_set, name##_driver);
281
282/* global variables */
283extern struct video_switch **vidsw;
284
285/* functions for the video card driver */
286int		vid_register(video_adapter_t *adp);
287int		vid_unregister(video_adapter_t *adp);
288video_switch_t	*vid_get_switch(char *name);
289void		vid_init_struct(video_adapter_t *adp, char *name, int type,
290				int unit);
291
292/* functions for the video card client */
293int		vid_allocate(char *driver, int unit, void *id);
294int		vid_release(video_adapter_t *adp, void *id);
295int		vid_find_adapter(char *driver, int unit);
296video_adapter_t	*vid_get_adapter(int index);
297
298/* a backdoor for the console driver to tickle the video driver XXX */
299int		vid_configure(int flags);
300#define VIO_PROBE_ONLY	(1 << 0)	/* probe only, don't initialize */
301
302#ifdef FB_INSTALL_CDEV
303
304/* virtual frame buffer driver functions */
305int		fb_attach(int unit, video_adapter_t *adp,
306			  struct cdevsw *cdevsw);
307int		fb_detach(int unit, video_adapter_t *adp,
308			  struct cdevsw *cdevsw);
309
310/* generic frame buffer cdev driver functions */
311
312typedef struct genfb_softc {
313	int		gfb_flags;	/* flag/status bits */
314#define FB_OPEN		(1 << 0)
315} genfb_softc_t;
316
317int		genfbopen(genfb_softc_t *sc, video_adapter_t *adp,
318			  int flag, int mode, struct thread *td);
319int		genfbclose(genfb_softc_t *sc, video_adapter_t *adp,
320			   int flag, int mode, struct thread *td);
321int		genfbread(genfb_softc_t *sc, video_adapter_t *adp,
322			  struct uio *uio, int flag);
323int		genfbwrite(genfb_softc_t *sc, video_adapter_t *adp,
324			   struct uio *uio, int flag);
325int		genfbioctl(genfb_softc_t *sc, video_adapter_t *adp,
326			   u_long cmd, caddr_t arg, int flag, struct thread *td);
327int		genfbmmap(genfb_softc_t *sc, video_adapter_t *adp,
328			  vm_ooffset_t offset, vm_offset_t *paddr,
329			  int prot, vm_memattr_t *memattr);
330
331#endif /* FB_INSTALL_CDEV */
332
333/* generic low-level driver functions */
334
335void		fb_dump_adp_info(char *driver, video_adapter_t *adp, int level);
336void		fb_dump_mode_info(char *driver, video_adapter_t *adp,
337				  video_info_t *info, int level);
338int		fb_type(int adp_type);
339int		fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg);
340
341#endif /* _KERNEL */
342
343#endif /* !_DEV_FB_FBREG_H_ */
344