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1897 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
1897 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup sparc64 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #include <arch/drivers/scr.h> |
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36 | #include <genarch/ofw/ofw_tree.h> |
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37 | #include <genarch/fb/fb.h> |
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1993 | decky | 38 | #include <genarch/fb/visuals.h> |
1897 | jermar | 39 | #include <arch/types.h> |
40 | #include <func.h> |
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41 | #include <align.h> |
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42 | #include <print.h> |
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43 | |||
1898 | jermar | 44 | #define FFB_REG_24BPP 7 |
45 | |||
1897 | jermar | 46 | scr_type_t scr_type = SCR_UNKNOWN; |
47 | |||
48 | /** Initialize screen. |
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49 | * |
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50 | * Traverse OpenFirmware device tree in order to find necessary |
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51 | * info about the screen device. |
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52 | * |
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53 | * @param node Screen device node. |
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54 | */ |
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55 | void scr_init(ofw_tree_node_t *node) |
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56 | { |
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57 | ofw_tree_property_t *prop; |
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3675 | svoboda | 58 | ofw_pci_reg_t *pci_reg; |
59 | ofw_pci_reg_t pci_abs_reg; |
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60 | ofw_upa_reg_t *upa_reg; |
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61 | ofw_sbus_reg_t *sbus_reg; |
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1897 | jermar | 62 | const char *name; |
63 | |||
64 | name = ofw_tree_node_name(node); |
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65 | |||
66 | if (strcmp(name, "SUNW,m64B") == 0) |
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67 | scr_type = SCR_ATYFB; |
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3675 | svoboda | 68 | else if (strcmp(name, "SUNW,XVR-100") == 0) |
69 | scr_type = SCR_XVR; |
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1897 | jermar | 70 | else if (strcmp(name, "SUNW,ffb") == 0) |
71 | scr_type = SCR_FFB; |
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2510 | jermar | 72 | else if (strcmp(name, "cgsix") == 0) |
73 | scr_type = SCR_CGSIX; |
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1897 | jermar | 74 | |
75 | if (scr_type == SCR_UNKNOWN) { |
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3675 | svoboda | 76 | printf("Unknown screen device.\n"); |
1897 | jermar | 77 | return; |
78 | } |
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79 | |||
80 | uintptr_t fb_addr; |
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3684 | svoboda | 81 | unsigned int fb_offset = 0; |
1897 | jermar | 82 | uint32_t fb_width = 0; |
83 | uint32_t fb_height = 0; |
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84 | uint32_t fb_depth = 0; |
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85 | uint32_t fb_linebytes = 0; |
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86 | uint32_t fb_scanline = 0; |
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1993 | decky | 87 | unsigned int visual; |
1897 | jermar | 88 | |
89 | prop = ofw_tree_getprop(node, "width"); |
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90 | if (prop && prop->value) |
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91 | fb_width = *((uint32_t *) prop->value); |
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92 | |||
93 | prop = ofw_tree_getprop(node, "height"); |
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94 | if (prop && prop->value) |
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95 | fb_height = *((uint32_t *) prop->value); |
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96 | |||
97 | prop = ofw_tree_getprop(node, "depth"); |
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98 | if (prop && prop->value) |
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99 | fb_depth = *((uint32_t *) prop->value); |
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100 | |||
101 | prop = ofw_tree_getprop(node, "linebytes"); |
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102 | if (prop && prop->value) |
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103 | fb_linebytes = *((uint32_t *) prop->value); |
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104 | |||
105 | prop = ofw_tree_getprop(node, "reg"); |
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106 | if (!prop) |
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107 | panic("Can't find \"reg\" property.\n"); |
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108 | |||
109 | switch (scr_type) { |
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110 | case SCR_ATYFB: |
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111 | if (prop->size / sizeof(ofw_pci_reg_t) < 2) { |
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112 | printf("Too few screen registers.\n"); |
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113 | return; |
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114 | } |
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115 | |||
3675 | svoboda | 116 | pci_reg = &((ofw_pci_reg_t *) prop->value)[1]; |
1897 | jermar | 117 | |
3675 | svoboda | 118 | if (!ofw_pci_reg_absolutize(node, pci_reg, &pci_abs_reg)) { |
1897 | jermar | 119 | printf("Failed to absolutize fb register.\n"); |
120 | return; |
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121 | } |
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122 | |||
3675 | svoboda | 123 | if (!ofw_pci_apply_ranges(node->parent, &pci_abs_reg, |
124 | &fb_addr)) { |
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1897 | jermar | 125 | printf("Failed to determine screen address.\n"); |
126 | return; |
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127 | } |
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1993 | decky | 128 | |
129 | switch (fb_depth) { |
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130 | case 8: |
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131 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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132 | visual = VISUAL_INDIRECT_8; |
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133 | break; |
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134 | case 16: |
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135 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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136 | visual = VISUAL_RGB_5_6_5; |
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137 | break; |
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138 | case 24: |
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1897 | jermar | 139 | fb_scanline = fb_linebytes * 4; |
1993 | decky | 140 | visual = VISUAL_RGB_8_8_8_0; |
141 | break; |
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142 | case 32: |
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1897 | jermar | 143 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
1993 | decky | 144 | visual = VISUAL_RGB_0_8_8_8; |
145 | break; |
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146 | default: |
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147 | printf("Unsupported bits per pixel.\n"); |
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148 | return; |
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149 | } |
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1897 | jermar | 150 | |
151 | break; |
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3675 | svoboda | 152 | case SCR_XVR: |
153 | if (prop->size / sizeof(ofw_pci_reg_t) < 2) { |
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154 | printf("Too few screen registers.\n"); |
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155 | return; |
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156 | } |
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157 | |||
158 | pci_reg = &((ofw_pci_reg_t *) prop->value)[1]; |
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159 | |||
160 | if (!ofw_pci_reg_absolutize(node, pci_reg, &pci_abs_reg)) { |
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161 | printf("Failed to absolutize fb register.\n"); |
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162 | return; |
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163 | } |
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164 | |||
165 | if (!ofw_pci_apply_ranges(node->parent, &pci_abs_reg, |
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166 | &fb_addr)) { |
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167 | printf("Failed to determine screen address.\n"); |
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168 | return; |
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169 | } |
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170 | |||
3684 | svoboda | 171 | fb_offset = 4 * 0x2000; |
172 | |||
3675 | svoboda | 173 | switch (fb_depth) { |
174 | case 8: |
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175 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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3684 | svoboda | 176 | visual = VISUAL_INDIRECT_8; |
3675 | svoboda | 177 | break; |
178 | case 16: |
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179 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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180 | visual = VISUAL_RGB_5_6_5; |
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181 | break; |
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182 | case 24: |
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183 | fb_scanline = fb_linebytes * 4; |
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184 | visual = VISUAL_RGB_8_8_8_0; |
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185 | break; |
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186 | case 32: |
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187 | fb_scanline = fb_linebytes * (fb_depth >> 3); |
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188 | visual = VISUAL_RGB_0_8_8_8; |
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189 | break; |
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190 | default: |
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191 | printf("Unsupported bits per pixel.\n"); |
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192 | return; |
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193 | } |
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194 | |||
195 | break; |
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1898 | jermar | 196 | case SCR_FFB: |
197 | fb_scanline = 8192; |
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1994 | decky | 198 | visual = VISUAL_BGR_0_8_8_8; |
1898 | jermar | 199 | |
3675 | svoboda | 200 | upa_reg = &((ofw_upa_reg_t *) prop->value)[FFB_REG_24BPP]; |
201 | if (!ofw_upa_apply_ranges(node->parent, upa_reg, &fb_addr)) { |
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1898 | jermar | 202 | printf("Failed to determine screen address.\n"); |
203 | return; |
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204 | } |
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205 | |||
206 | break; |
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2510 | jermar | 207 | case SCR_CGSIX: |
208 | switch (fb_depth) { |
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209 | case 8: |
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210 | fb_scanline = fb_linebytes; |
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211 | visual = VISUAL_INDIRECT_8; |
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212 | break; |
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213 | default: |
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214 | printf("Not implemented.\n"); |
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215 | return; |
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216 | } |
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217 | |||
3675 | svoboda | 218 | sbus_reg = &((ofw_sbus_reg_t *) prop->value)[0]; |
219 | if (!ofw_sbus_apply_ranges(node->parent, sbus_reg, &fb_addr)) { |
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2510 | jermar | 220 | printf("Failed to determine screen address.\n"); |
221 | return; |
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222 | } |
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223 | |||
224 | break; |
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1897 | jermar | 225 | default: |
226 | panic("Unexpected type.\n"); |
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227 | } |
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228 | |||
3675 | svoboda | 229 | fb_properties_t props = { |
230 | .addr = fb_addr, |
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3684 | svoboda | 231 | .offset = fb_offset, |
3675 | svoboda | 232 | .x = fb_width, |
233 | .y = fb_height, |
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234 | .scan = fb_scanline, |
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235 | .visual = visual, |
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236 | }; |
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237 | fb_init(&props); |
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1897 | jermar | 238 | } |
239 | |||
240 | /** @} |
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241 | */ |