FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/igsfbvar.h
1 /* $NetBSD: igsfbvar.h,v 1.16 2006/04/05 01:13:50 uwe Exp $ */
2
3 /*
4 * Copyright (c) 2002, 2003 Valeriy E. Ushakov
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. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * Integraphics Systems IGA 168x and CyberPro series.
32 */
33 #ifndef _DEV_IC_IGSFBVAR_H_
34 #define _DEV_IC_IGSFBVAR_H_
35
36 #define IGS_CMAP_SIZE 256 /* 256 R/G/B entries */
37 struct igs_hwcmap {
38 uint8_t r[IGS_CMAP_SIZE];
39 uint8_t g[IGS_CMAP_SIZE];
40 uint8_t b[IGS_CMAP_SIZE];
41 };
42
43
44 #define IGS_CURSOR_MAX_SIZE 64 /* 64x64 sprite */
45 struct igs_hwcursor {
46 struct wsdisplay_curpos cc_pos;
47 struct wsdisplay_curpos cc_hot;
48 struct wsdisplay_curpos cc_size;
49 uint8_t cc_image[512]; /* save copy of image for GCURSOR */
50 uint8_t cc_mask[512]; /* save copy of mask for GCURSOR */
51 uint16_t cc_sprite[512]; /* sprite in device 2bpp format */
52 uint8_t cc_color[6]; /* 2 colors, 3 rgb components */
53 };
54
55
56 struct igsfb_devconfig {
57 /* io space, may be memory mapped */
58 bus_space_tag_t dc_iot;
59 bus_addr_t dc_iobase;
60 int dc_ioflags;
61
62 /* io registers */
63 bus_space_handle_t dc_ioh;
64
65 /* graphic coprocessor */
66 bus_space_handle_t dc_coph;
67
68 /* linear memory */
69 bus_space_tag_t dc_memt;
70 bus_addr_t dc_memaddr;
71 bus_size_t dc_memsz; /* size of linear address space including mmio */
72 int dc_memflags;
73
74 /* video memory size */
75 bus_size_t dc_vmemsz;
76
77 /* resolution */
78 int dc_width, dc_height, dc_depth, dc_stride;
79
80 /* part of video memory mapped for wsscreen */
81 bus_space_handle_t dc_fbh;
82 bus_size_t dc_fbsz;
83
84 /* 1KB of cursor sprite data */
85 bus_space_handle_t dc_crh;
86
87 /* product id: IGA 168x, CyberPro 2k &c */
88 int dc_id;
89
90 /* flags that control driver operation */
91 int dc_hwflags;
92 #define IGSFB_HW_BSWAP 0x1 /* endianness mismatch */
93 #define IGSFB_HW_BE_SELECT 0x2 /* big endian magic (cyberpro) */
94 #define IGSFB_HW_TEXT_CURSOR 0x4 /* do text cursor in hardware */
95
96 /* do we need to do bswap in software? */
97 #define IGSFB_HW_SOFT_BSWAP(dc) \
98 ((((dc)->dc_hwflags) & (IGSFB_HW_BSWAP | IGSFB_HW_BE_SELECT)) \
99 == IGSFB_HW_BSWAP)
100
101 int dc_blanked; /* screen is currently blanked */
102 int dc_curenb; /* cursor sprite enabled */
103 int dc_mapped; /* currently in mapped mode */
104
105 /* saved dc_ri.ri_ops.putchar */
106 void (*dc_ri_putchar)(void *, int, int, u_int, long);
107
108 struct igs_hwcmap dc_cmap; /* software copy of colormap */
109 struct igs_hwcursor dc_cursor; /* software copy of cursor sprite */
110
111 /* precomputed bit table for cursor sprite 1bpp -> 2bpp conversion */
112 uint16_t dc_bexpand[256];
113
114 /* virtual console support */
115 struct vcons_data dc_vd;
116 struct vcons_screen dc_console;
117 };
118
119
120 struct igsfb_softc {
121 struct device sc_dev;
122 struct igsfb_devconfig *sc_dc;
123 };
124
125
126
127 /*
128 * Access sugar for indexed registers
129 */
130
131 static __inline uint8_t
132 igs_idx_read(bus_space_tag_t, bus_space_handle_t, u_int, uint8_t);
133 static __inline void
134 igs_idx_write(bus_space_tag_t, bus_space_handle_t, u_int, uint8_t, uint8_t);
135
136 static __inline uint8_t
137 igs_idx_read(bus_space_tag_t t, bus_space_handle_t h,
138 u_int idxport, uint8_t idx)
139 {
140 bus_space_write_1(t, h, idxport, idx);
141 return (bus_space_read_1(t, h, idxport + 1));
142 }
143
144 static __inline void
145 igs_idx_write(bus_space_tag_t t, bus_space_handle_t h,
146 u_int idxport, uint8_t idx, uint8_t val)
147 {
148 bus_space_write_1(t, h, idxport, idx);
149 bus_space_write_1(t, h, idxport + 1, val);
150 }
151
152
153 /* sugar for sequencer controller */
154 #define igs_seq_read(t,h,x) \
155 (igs_idx_read((t),(h),IGS_SEQ_IDX,(x)))
156 #define igs_seq_write(t,h,x,v) \
157 (igs_idx_write((t),(h),IGS_SEQ_IDX,(x),(v)))
158
159
160 /* sugar for CRT controller */
161 #define igs_crtc_read(t,h,x) \
162 (igs_idx_read((t),(h),IGS_CRTC_IDX,(x)))
163 #define igs_crtc_write(t,h,x,v) \
164 (igs_idx_write((t),(h),IGS_CRTC_IDX,(x),(v)))
165
166
167 /* sugar for attribute controller */
168 #define igs_attr_flip_flop(t,h) \
169 ((void)bus_space_read_1((t),(h),IGS_INPUT_STATUS1));
170 #define igs_attr_read(t,h,x) \
171 (igs_idx_read((t),(h),IGS_ATTR_IDX,(x)))
172
173 static __inline void
174 igs_attr_write(bus_space_tag_t, bus_space_handle_t, uint8_t, uint8_t);
175
176 static __inline void
177 igs_attr_write(bus_space_tag_t t, bus_space_handle_t h,
178 uint8_t idx, uint8_t val)
179 {
180 bus_space_write_1(t, h, IGS_ATTR_IDX, idx);
181 bus_space_write_1(t, h, IGS_ATTR_IDX, val); /* sic, same register */
182 }
183
184
185 /* sugar for graphics controller registers */
186 #define igs_grfx_read(t,h,x) (igs_idx_read((t),(h),IGS_GRFX_IDX,(x)))
187 #define igs_grfx_write(t,h,x,v) (igs_idx_write((t),(h),IGS_GRFX_IDX,(x),(v)))
188
189
190 /* sugar for extended registers */
191 #define igs_ext_read(t,h,x) (igs_idx_read((t),(h),IGS_EXT_IDX,(x)))
192 #define igs_ext_write(t,h,x,v) (igs_idx_write((t),(h),IGS_EXT_IDX,(x),(v)))
193
194
195 /* igsfb_subr.c */
196 int igsfb_enable(bus_space_tag_t, bus_addr_t, int);
197 void igsfb_hw_setup(struct igsfb_devconfig *);
198 void igsfb_1024x768_8bpp_60Hz(struct igsfb_devconfig *);
199
200 /* igsfb.c */
201 int igsfb_cnattach_subr(struct igsfb_devconfig *);
202 void igsfb_attach_subr(struct igsfb_softc *, int);
203
204
205 extern struct igsfb_devconfig igsfb_console_dc;
206
207 #endif /* _DEV_IC_IGSFBVAR_H_ */
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