2 * Copyright (c) 2012 Robert N. M. Watson
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #ifndef _DEV_TERASIC_MTL_H_
34 #define _DEV_TERASIC_MTL_H_
36 struct terasic_mtl_softc {
38 * syscons requires that its video_adapter_t be at the front of the
39 * softc, so place syscons fields first, which we otherwise would
42 video_adapter_t mtl_va;
51 * The MTL driver doesn't require a lot of synchronisation; however,
52 * the lock is used to protect read-modify-write operations on MTL
58 * Control register device -- mappable from userspace.
60 struct cdev *mtl_reg_cdev;
61 struct resource *mtl_reg_res;
65 * Graphics frame buffer device -- mappable form userspace.
67 struct cdev *mtl_pixel_cdev;
68 struct resource *mtl_pixel_res;
72 * Text frame buffer device -- mappable from userspace, and syscons
75 struct cdev *mtl_text_cdev;
76 struct resource *mtl_text_res;
78 uint16_t *mtl_text_soft;
81 #define TERASIC_MTL_LOCK(sc) mtx_lock(&(sc)->mtl_lock)
82 #define TERASIC_MTL_LOCK_ASSERT(sc) mtx_assert(&(sc)->mtl_lock, MA_OWNED)
83 #define TERASIC_MTL_LOCK_DESTROY(sc) mtx_destroy(&(sc)->mtl_lock)
84 #define TERASIC_MTL_LOCK_INIT(sc) mtx_init(&(sc)->mtl_lock, \
85 "terasic_mtl", NULL, MTX_DEF)
86 #define TERASIC_MTL_UNLOCK(sc) mtx_unlock(&(sc)->mtl_lock)
89 * Constant properties of the MTL text frame buffer.
91 #define TERASIC_MTL_COLS 100
92 #define TERASIC_MTL_ROWS 40
95 * MTL control register offsets.
97 #define TERASIC_MTL_OFF_BLEND 0
98 #define TERASIC_MTL_OFF_TEXTCURSOR 4
99 #define TERASIC_MTL_OFF_TEXTFRAMEBUFADDR 8
100 #define TERASIC_MTL_OFF_TOUCHPOINT_X1 12
101 #define TERASIC_MTL_OFF_TOUCHPOINT_Y1 16
102 #define TERASIC_MTL_OFF_TOUCHPOINT_X2 20
103 #define TERASIC_MTL_OFF_TOUCHPOINT_Y2 24
104 #define TERASIC_MTL_OFF_TOUCHGESTURE 28
107 * Constants to help interpret various control registers.
109 #define TERASIC_MTL_BLEND_DEFAULT_MASK 0x0f000000
110 #define TERASIC_MTL_BLEND_DEFAULT_SHIFT 24
111 #define TERASIC_MTL_BLEND_PIXEL_MASK 0x00ff0000
112 #define TERASIC_MTL_BLEND_PIXEL_SHIFT 16
113 #define TERASIC_MTL_BLEND_TEXTFG_MASK 0x0000ff00
114 #define TERASIC_MTL_BLEND_TEXTFG_SHIFT 8
115 #define TERASIC_MTL_BLEND_TEXTBG_MASK 0x000000ff
116 #define TERASIC_MTL_BLEND_TEXTBG_SHIFT 0
117 #define TERASIC_MTL_TEXTCURSOR_COL_MASK 0xff00
118 #define TERASIC_MTL_TEXTCURSOR_COL_SHIFT 8
119 #define TERASIC_MTL_TEXTCURSOR_ROW_MASK 0xff
122 * Colours used both by VGA-like text rendering, and for the default display
125 #define TERASIC_MTL_COLOR_BLACK 0
126 #define TERASIC_MTL_COLOR_DARKBLUE 1
127 #define TERASIC_MTL_COLOR_DARKGREEN 2
128 #define TERASIC_MTL_COLOR_DARKCYAN 3
129 #define TERASIC_MTL_COLOR_DARKRED 4
130 #define TERASIC_MTL_COLOR_DARKMAGENTA 5
131 #define TERASIC_MTL_COLOR_BROWN 6
132 #define TERASIC_MTL_COLOR_LIGHTGREY 7
133 #define TERASIC_MTL_COLOR_DARKGREY 8
134 #define TERASIC_MTL_COLOR_LIGHTBLUE 9
135 #define TERASIC_MTL_COLOR_LIGHTGREEN 10
136 #define TERASIC_MTL_COLOR_LIGHTCYAN 11
137 #define TERASIC_MTL_COLOR_LIGHTRED 12
138 #define TERASIC_MTL_COLOR_LIGHTMAGENTA 13
139 #define TERASIC_MTL_COLOR_LIGHTYELLOW 14
140 #define TERASIC_MTL_COLOR_WHITE 15
141 #define TERASIC_MTL_COLORMASK_BLINK 0x80
144 * Constants to help interpret the text frame buffer.
146 #define TERASIC_MTL_TEXTFRAMEBUF_EXPECTED_ADDR 0x0177000
147 #define TERASIC_MTL_TEXTFRAMEBUF_CHAR_SHIFT 0
148 #define TERASIC_MTL_TEXTFRAMEBUF_ATTR_SHIFT 8
151 * Alpha-blending constants.
153 #define TERASIC_MTL_ALPHA_TRANSPARENT 0
154 #define TERASIC_MTL_ALPHA_OPAQUE 255
157 * Driver setup routines from the bus attachment/teardown.
159 int terasic_mtl_attach(struct terasic_mtl_softc *sc);
160 void terasic_mtl_detach(struct terasic_mtl_softc *sc);
162 extern devclass_t terasic_mtl_devclass;
165 * Sub-driver setup routines.
167 int terasic_mtl_pixel_attach(struct terasic_mtl_softc *sc);
168 void terasic_mtl_pixel_detach(struct terasic_mtl_softc *sc);
169 int terasic_mtl_reg_attach(struct terasic_mtl_softc *sc);
170 void terasic_mtl_reg_detach(struct terasic_mtl_softc *sc);
171 int terasic_mtl_syscons_attach(struct terasic_mtl_softc *sc);
172 void terasic_mtl_syscons_detach(struct terasic_mtl_softc *sc);
173 int terasic_mtl_text_attach(struct terasic_mtl_softc *sc);
174 void terasic_mtl_text_detach(struct terasic_mtl_softc *sc);
177 * Control register I/O routines.
179 void terasic_mtl_reg_blank(struct terasic_mtl_softc *sc);
181 void terasic_mtl_reg_blend_get(struct terasic_mtl_softc *sc,
183 void terasic_mtl_reg_blend_set(struct terasic_mtl_softc *sc,
185 void terasic_mtl_reg_textcursor_get(struct terasic_mtl_softc *sc,
186 uint8_t *colp, uint8_t *rowp);
187 void terasic_mtl_reg_textcursor_set(struct terasic_mtl_softc *sc,
188 uint8_t col, uint8_t row);
189 void terasic_mtl_reg_textframebufaddr_get(struct terasic_mtl_softc *sc,
191 void terasic_mtl_reg_textframebufaddr_set(struct terasic_mtl_softc *sc,
195 * Read-modify-write updates of sub-bytes of the blend register.
197 void terasic_mtl_blend_default_set(struct terasic_mtl_softc *sc,
199 void terasic_mtl_blend_pixel_set(struct terasic_mtl_softc *sc,
201 void terasic_mtl_blend_textfg_set(struct terasic_mtl_softc *sc,
203 void terasic_mtl_blend_textbg_set(struct terasic_mtl_softc *sc,
207 * Text frame buffer I/O routines.
209 void terasic_mtl_text_putc(struct terasic_mtl_softc *sc, u_int x, u_int y,
210 uint8_t c, uint8_t a);
212 #endif /* _DEV_TERASIC_MTL_H_ */