source: mainline/kernel/arch/sparc64/src/drivers/scr.c@ 19f857a

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 19f857a was 19f857a, checked in by Jiri Svoboda <jiri@…>, 15 years ago

Rename string.h to str.h to avoid header conflict with standard C string.h.
  • Property mode set to 100644
File size: 6.1 KB
Line 
1/*
2 * Copyright (c) 2006 Jakub Jermar
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 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - 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 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
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/** @addtogroup sparc64
30 * @{
31 */
32/** @file
33 */
34
35#include <arch/drivers/scr.h>
36#include <genarch/ofw/ofw_tree.h>
37#include <genarch/ofw/pci.h>
38#include <genarch/ofw/sbus.h>
39#include <genarch/ofw/upa.h>
40#include <genarch/fb/fb.h>
41#include <genarch/fb/visuals.h>
42#include <console/chardev.h>
43#include <console/console.h>
44#include <arch/types.h>
45#include <str.h>
46#include <align.h>
47#include <print.h>
48
49#define FFB_REG_24BPP 7
50
51scr_type_t scr_type = SCR_UNKNOWN;
52
53/** Initialize screen.
54 *
55 * Traverse OpenFirmware device tree in order to find necessary
56 * info about the screen device.
57 *
58 * @param node Screen device node.
59 */
60void scr_init(ofw_tree_node_t *node)
61{
62 ofw_tree_property_t *prop;
63 ofw_pci_reg_t *pci_reg;
64 ofw_pci_reg_t pci_abs_reg;
65 ofw_upa_reg_t *upa_reg;
66 ofw_sbus_reg_t *sbus_reg;
67 const char *name;
68
69 name = ofw_tree_node_name(node);
70
71 if (str_cmp(name, "SUNW,m64B") == 0)
72 scr_type = SCR_ATYFB;
73 else if (str_cmp(name, "SUNW,XVR-100") == 0)
74 scr_type = SCR_XVR;
75 else if (str_cmp(name, "SUNW,ffb") == 0)
76 scr_type = SCR_FFB;
77 else if (str_cmp(name, "cgsix") == 0)
78 scr_type = SCR_CGSIX;
79
80 if (scr_type == SCR_UNKNOWN) {
81 printf("Unknown screen device.\n");
82 return;
83 }
84
85 uintptr_t fb_addr;
86 unsigned int fb_offset = 0;
87 uint32_t fb_width = 0;
88 uint32_t fb_height = 0;
89 uint32_t fb_depth = 0;
90 uint32_t fb_linebytes = 0;
91 uint32_t fb_scanline = 0;
92 unsigned int visual;
93
94 prop = ofw_tree_getprop(node, "width");
95 if (prop && prop->value)
96 fb_width = *((uint32_t *) prop->value);
97
98 prop = ofw_tree_getprop(node, "height");
99 if (prop && prop->value)
100 fb_height = *((uint32_t *) prop->value);
101
102 prop = ofw_tree_getprop(node, "depth");
103 if (prop && prop->value)
104 fb_depth = *((uint32_t *) prop->value);
105
106 prop = ofw_tree_getprop(node, "linebytes");
107 if (prop && prop->value)
108 fb_linebytes = *((uint32_t *) prop->value);
109
110 prop = ofw_tree_getprop(node, "reg");
111 if (!prop)
112 panic("Cannot find 'reg' property.");
113
114 switch (scr_type) {
115 case SCR_ATYFB:
116 if (prop->size / sizeof(ofw_pci_reg_t) < 2) {
117 printf("Too few screen registers.\n");
118 return;
119 }
120
121 pci_reg = &((ofw_pci_reg_t *) prop->value)[1];
122
123 if (!ofw_pci_reg_absolutize(node, pci_reg, &pci_abs_reg)) {
124 printf("Failed to absolutize fb register.\n");
125 return;
126 }
127
128 if (!ofw_pci_apply_ranges(node->parent, &pci_abs_reg,
129 &fb_addr)) {
130 printf("Failed to determine screen address.\n");
131 return;
132 }
133
134 switch (fb_depth) {
135 case 8:
136 fb_scanline = fb_linebytes * (fb_depth >> 3);
137 visual = VISUAL_INDIRECT_8;
138 break;
139 case 16:
140 fb_scanline = fb_linebytes * (fb_depth >> 3);
141 visual = VISUAL_RGB_5_6_5_BE;
142 break;
143 case 24:
144 fb_scanline = fb_linebytes * 4;
145 visual = VISUAL_BGR_8_8_8_0;
146 break;
147 case 32:
148 fb_scanline = fb_linebytes * (fb_depth >> 3);
149 visual = VISUAL_RGB_0_8_8_8;
150 break;
151 default:
152 printf("Unsupported bits per pixel.\n");
153 return;
154 }
155
156 break;
157 case SCR_XVR:
158 if (prop->size / sizeof(ofw_pci_reg_t) < 2) {
159 printf("Too few screen registers.\n");
160 return;
161 }
162
163 pci_reg = &((ofw_pci_reg_t *) prop->value)[1];
164
165 if (!ofw_pci_reg_absolutize(node, pci_reg, &pci_abs_reg)) {
166 printf("Failed to absolutize fb register.\n");
167 return;
168 }
169
170 if (!ofw_pci_apply_ranges(node->parent, &pci_abs_reg,
171 &fb_addr)) {
172 printf("Failed to determine screen address.\n");
173 return;
174 }
175
176 fb_offset = 4 * 0x2000;
177
178 switch (fb_depth) {
179 case 8:
180 fb_scanline = fb_linebytes * (fb_depth >> 3);
181 visual = VISUAL_INDIRECT_8;
182 break;
183 case 16:
184 fb_scanline = fb_linebytes * (fb_depth >> 3);
185 visual = VISUAL_RGB_5_6_5_BE;
186 break;
187 case 24:
188 fb_scanline = fb_linebytes * 4;
189 visual = VISUAL_BGR_8_8_8_0;
190 break;
191 case 32:
192 fb_scanline = fb_linebytes * (fb_depth >> 3);
193 visual = VISUAL_RGB_0_8_8_8;
194 break;
195 default:
196 printf("Unsupported bits per pixel.\n");
197 return;
198 }
199
200 break;
201 case SCR_FFB:
202 fb_scanline = 8192;
203 visual = VISUAL_BGR_0_8_8_8;
204
205 upa_reg = &((ofw_upa_reg_t *) prop->value)[FFB_REG_24BPP];
206 if (!ofw_upa_apply_ranges(node->parent, upa_reg, &fb_addr)) {
207 printf("Failed to determine screen address.\n");
208 return;
209 }
210
211 break;
212 case SCR_CGSIX:
213 switch (fb_depth) {
214 case 8:
215 fb_scanline = fb_linebytes;
216 visual = VISUAL_INDIRECT_8;
217 break;
218 default:
219 printf("Not implemented.\n");
220 return;
221 }
222
223 sbus_reg = &((ofw_sbus_reg_t *) prop->value)[0];
224 if (!ofw_sbus_apply_ranges(node->parent, sbus_reg, &fb_addr)) {
225 printf("Failed to determine screen address.\n");
226 return;
227 }
228
229 break;
230 default:
231 panic("Unexpected type.");
232 }
233
234 fb_properties_t props = {
235 .addr = fb_addr,
236 .offset = fb_offset,
237 .x = fb_width,
238 .y = fb_height,
239 .scan = fb_scanline,
240 .visual = visual,
241 };
242
243 outdev_t *fbdev = fb_init(&props);
244 if (fbdev)
245 stdout_wire(fbdev);
246}
247
248/** @}
249 */
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