xref: /freebsd/sys/powerpc/ps3/ps3_syscons.c (revision ec273ebf3b6aed5fba8c56b6ece5ad8693a48ea7)
1 /*-
2  * Copyright (c) 2011-2014 Nathan Whitehorn
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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/sysctl.h>
34 #include <sys/limits.h>
35 #include <sys/conf.h>
36 #include <sys/cons.h>
37 #include <sys/fbio.h>
38 
39 #include <vm/vm.h>
40 #include <vm/pmap.h>
41 
42 #include <machine/platform.h>
43 #include <machine/pmap.h>
44 
45 #include <dev/ofw/openfirm.h>
46 #include <dev/vt/vt.h>
47 #include <dev/vt/hw/fb/vt_fb.h>
48 #include <dev/vt/colors/vt_termcolors.h>
49 
50 #include "ps3-hvcall.h"
51 
52 #define PS3FB_SIZE (4*1024*1024)
53 
54 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_MODE_SET	0x0100
55 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC		0x0101
56 #define  L1GPU_DISPLAY_SYNC_HSYNC			1
57 #define  L1GPU_DISPLAY_SYNC_VSYNC			2
58 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP		0x0102
59 
60 static vd_init_t ps3fb_init;
61 static vd_probe_t ps3fb_probe;
62 void ps3fb_remap(void);
63 
64 struct ps3fb_softc {
65 	struct fb_info	fb_info;
66 
67 	uint64_t	sc_fbhandle;
68 	uint64_t	sc_fbcontext;
69 	uint64_t	sc_dma_control;
70 	uint64_t	sc_driver_info;
71 	uint64_t	sc_reports;
72 	uint64_t	sc_reports_size;
73 };
74 
75 static struct vt_driver vt_ps3fb_driver = {
76 	.vd_name = "ps3fb",
77 	.vd_probe = ps3fb_probe,
78 	.vd_init = ps3fb_init,
79 	.vd_blank = vt_fb_blank,
80 	.vd_bitblt_text = vt_fb_bitblt_text,
81 	.vd_bitblt_bmp = vt_fb_bitblt_bitmap,
82 	.vd_drawrect = vt_fb_drawrect,
83 	.vd_setpixel = vt_fb_setpixel,
84 	.vd_fb_ioctl = vt_fb_ioctl,
85 	.vd_fb_mmap = vt_fb_mmap,
86 	/* Better than VGA, but still generic driver. */
87 	.vd_priority = VD_PRIORITY_GENERIC + 1,
88 };
89 
90 VT_DRIVER_DECLARE(vt_ps3fb, vt_ps3fb_driver);
91 static struct ps3fb_softc ps3fb_softc;
92 
93 static int
94 ps3fb_probe(struct vt_device *vd)
95 {
96 	struct ps3fb_softc *sc;
97 	int disable;
98 	char compatible[64];
99 	phandle_t root;
100 
101 	disable = 0;
102 	TUNABLE_INT_FETCH("hw.syscons.disable", &disable);
103 	if (disable != 0)
104 		return (0);
105 
106 	sc = &ps3fb_softc;
107 
108 	TUNABLE_STR_FETCH("hw.platform", compatible, sizeof(compatible));
109 	if (strcmp(compatible, "ps3") == 0)
110 		return (CN_INTERNAL);
111 
112 	root = OF_finddevice("/");
113 	if (OF_getprop(root, "compatible", compatible, sizeof(compatible)) <= 0)
114                 return (CN_DEAD);
115 
116 	if (strncmp(compatible, "sony,ps3", sizeof(compatible)) != 0)
117 		return (CN_DEAD);
118 
119 	return (CN_INTERNAL);
120 }
121 
122 void
123 ps3fb_remap(void)
124 {
125 	struct ps3fb_softc *sc;
126 	vm_offset_t va, fb_paddr;
127 
128 	sc = &ps3fb_softc;
129 
130 	lv1_gpu_close();
131 	lv1_gpu_open(0);
132 
133 	lv1_gpu_context_attribute(0, L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_MODE_SET,
134 	    0,0,0,0);
135 	lv1_gpu_context_attribute(0, L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_MODE_SET,
136 	    0,0,1,0);
137 	lv1_gpu_context_attribute(0, L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
138 	    0,L1GPU_DISPLAY_SYNC_VSYNC,0,0);
139 	lv1_gpu_context_attribute(0, L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
140 	    1,L1GPU_DISPLAY_SYNC_VSYNC,0,0);
141 	lv1_gpu_memory_allocate(PS3FB_SIZE, 0, 0, 0, 0, &sc->sc_fbhandle,
142 	    &fb_paddr);
143 	lv1_gpu_context_allocate(sc->sc_fbhandle, 0, &sc->sc_fbcontext,
144 	    &sc->sc_dma_control, &sc->sc_driver_info, &sc->sc_reports,
145 	    &sc->sc_reports_size);
146 
147 	lv1_gpu_context_attribute(sc->sc_fbcontext,
148 	    L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, 0, 0, 0, 0);
149 	lv1_gpu_context_attribute(sc->sc_fbcontext,
150 	    L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, 1, 0, 0, 0);
151 
152 	sc->fb_info.fb_pbase = fb_paddr;
153 	for (va = 0; va < PS3FB_SIZE; va += PAGE_SIZE)
154 		pmap_kenter_attr(0x10000000 + va, fb_paddr + va,
155 		    VM_MEMATTR_WRITE_COMBINING);
156 	sc->fb_info.fb_flags &= ~FB_FLAG_NOWRITE;
157 }
158 
159 static int
160 ps3fb_init(struct vt_device *vd)
161 {
162 	struct ps3fb_softc *sc;
163 
164 	/* Init softc */
165 	vd->vd_softc = sc = &ps3fb_softc;
166 
167 	/* XXX: get from HV repository */
168 	sc->fb_info.fb_depth = 32;
169 	sc->fb_info.fb_height = 480;
170 	sc->fb_info.fb_width = 720;
171 	sc->fb_info.fb_stride = sc->fb_info.fb_width*4;
172 	sc->fb_info.fb_size = sc->fb_info.fb_height * sc->fb_info.fb_stride;
173 	sc->fb_info.fb_bpp = sc->fb_info.fb_stride / sc->fb_info.fb_width * 8;
174 
175 	/*
176 	 * Arbitrarily choose address for the framebuffer
177 	 */
178 
179 	sc->fb_info.fb_vbase = 0x10000000;
180 	sc->fb_info.fb_flags |= FB_FLAG_NOWRITE; /* Not available yet */
181 	sc->fb_info.fb_cmsize = 16;
182 
183 	/* 32-bit VGA palette */
184 	vt_generate_cons_palette(sc->fb_info.fb_cmap, COLOR_FORMAT_RGB,
185 	    255, 0, 255, 8, 255, 16);
186 
187 	/* Set correct graphics context */
188 	lv1_gpu_context_attribute(sc->sc_fbcontext,
189 	    L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, 0, 0, 0, 0);
190 	lv1_gpu_context_attribute(sc->sc_fbcontext,
191 	    L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, 1, 0, 0, 0);
192 
193 	vt_fb_init(vd);
194 	sc->fb_info.fb_flags &= ~FB_FLAG_NOMMAP; /* Set wrongly by vt_fb_init */
195 
196 	return (CN_INTERNAL);
197 }
198 
199