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1 | /* |
1 | /* |
2 | * Copyright © 2006 Intel Corporation |
2 | * Copyright © 2006 Intel Corporation |
3 | * |
3 | * |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * copy of this software and associated documentation files (the "Software"), |
5 | * copy of this software and associated documentation files (the "Software"), |
6 | * to deal in the Software without restriction, including without limitation |
6 | * to deal in the Software without restriction, including without limitation |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
9 | * Software is furnished to do so, subject to the following conditions: |
9 | * Software is furnished to do so, subject to the following conditions: |
10 | * |
10 | * |
11 | * The above copyright notice and this permission notice (including the next |
11 | * The above copyright notice and this permission notice (including the next |
12 | * paragraph) shall be included in all copies or substantial portions of the |
12 | * paragraph) shall be included in all copies or substantial portions of the |
13 | * Software. |
13 | * Software. |
14 | * |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
21 | * SOFTWARE. |
21 | * SOFTWARE. |
22 | * |
22 | * |
23 | * Authors: |
23 | * Authors: |
24 | * Eric Anholt |
24 | * Eric Anholt |
25 | * |
25 | * |
26 | */ |
26 | */ |
27 | #include |
27 | #include |
28 | #include "drmP.h" |
28 | #include "drmP.h" |
29 | #include "drm.h" |
29 | #include "drm.h" |
30 | #include "i915_drm.h" |
30 | #include "i915_drm.h" |
31 | #include "i915_drv.h" |
31 | #include "i915_drv.h" |
32 | #include "intel_bios.h" |
32 | #include "intel_bios.h" |
33 | 33 | ||
34 | #define SLAVE_ADDR1 0x70 |
34 | #define SLAVE_ADDR1 0x70 |
35 | #define SLAVE_ADDR2 0x72 |
35 | #define SLAVE_ADDR2 0x72 |
36 | 36 | ||
37 | static int panel_type; |
37 | static int panel_type; |
38 | 38 | ||
39 | static void * |
39 | static void * |
40 | find_section(struct bdb_header *bdb, int section_id) |
40 | find_section(struct bdb_header *bdb, int section_id) |
41 | { |
41 | { |
42 | u8 *base = (u8 *)bdb; |
42 | u8 *base = (u8 *)bdb; |
43 | int index = 0; |
43 | int index = 0; |
44 | u16 total, current_size; |
44 | u16 total, current_size; |
45 | u8 current_id; |
45 | u8 current_id; |
46 | 46 | ||
47 | /* skip to first section */ |
47 | /* skip to first section */ |
48 | index += bdb->header_size; |
48 | index += bdb->header_size; |
49 | total = bdb->bdb_size; |
49 | total = bdb->bdb_size; |
50 | 50 | ||
51 | /* walk the sections looking for section_id */ |
51 | /* walk the sections looking for section_id */ |
52 | while (index < total) { |
52 | while (index < total) { |
53 | current_id = *(base + index); |
53 | current_id = *(base + index); |
54 | index++; |
54 | index++; |
55 | current_size = *((u16 *)(base + index)); |
55 | current_size = *((u16 *)(base + index)); |
56 | index += 2; |
56 | index += 2; |
57 | if (current_id == section_id) |
57 | if (current_id == section_id) |
58 | return base + index; |
58 | return base + index; |
59 | index += current_size; |
59 | index += current_size; |
60 | } |
60 | } |
61 | 61 | ||
62 | return NULL; |
62 | return NULL; |
63 | } |
63 | } |
64 | 64 | ||
65 | static u16 |
65 | static u16 |
66 | get_blocksize(void *p) |
66 | get_blocksize(void *p) |
67 | { |
67 | { |
68 | u16 *block_ptr, block_size; |
68 | u16 *block_ptr, block_size; |
69 | 69 | ||
70 | block_ptr = (u16 *)((char *)p - 2); |
70 | block_ptr = (u16 *)((char *)p - 2); |
71 | block_size = *block_ptr; |
71 | block_size = *block_ptr; |
72 | return block_size; |
72 | return block_size; |
73 | } |
73 | } |
74 | 74 | ||
75 | static void |
75 | static void |
76 | fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, |
76 | fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, |
77 | const struct lvds_dvo_timing *dvo_timing) |
77 | const struct lvds_dvo_timing *dvo_timing) |
78 | { |
78 | { |
79 | panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) | |
79 | panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) | |
80 | dvo_timing->hactive_lo; |
80 | dvo_timing->hactive_lo; |
81 | panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay + |
81 | panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay + |
82 | ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo); |
82 | ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo); |
83 | panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start + |
83 | panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start + |
84 | dvo_timing->hsync_pulse_width; |
84 | dvo_timing->hsync_pulse_width; |
85 | panel_fixed_mode->htotal = panel_fixed_mode->hdisplay + |
85 | panel_fixed_mode->htotal = panel_fixed_mode->hdisplay + |
86 | ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo); |
86 | ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo); |
87 | 87 | ||
88 | panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) | |
88 | panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) | |
89 | dvo_timing->vactive_lo; |
89 | dvo_timing->vactive_lo; |
90 | panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay + |
90 | panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay + |
91 | dvo_timing->vsync_off; |
91 | dvo_timing->vsync_off; |
92 | panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start + |
92 | panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start + |
93 | dvo_timing->vsync_pulse_width; |
93 | dvo_timing->vsync_pulse_width; |
94 | panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay + |
94 | panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay + |
95 | ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo); |
95 | ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo); |
96 | panel_fixed_mode->clock = dvo_timing->clock * 10; |
96 | panel_fixed_mode->clock = dvo_timing->clock * 10; |
97 | panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; |
97 | panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; |
98 | 98 | ||
99 | if (dvo_timing->hsync_positive) |
99 | if (dvo_timing->hsync_positive) |
100 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PHSYNC; |
100 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PHSYNC; |
101 | else |
101 | else |
102 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NHSYNC; |
102 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NHSYNC; |
103 | 103 | ||
104 | if (dvo_timing->vsync_positive) |
104 | if (dvo_timing->vsync_positive) |
105 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PVSYNC; |
105 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PVSYNC; |
106 | else |
106 | else |
107 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; |
107 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; |
108 | 108 | ||
109 | /* Some VBTs have bogus h/vtotal values */ |
109 | /* Some VBTs have bogus h/vtotal values */ |
110 | if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) |
110 | if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) |
111 | panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; |
111 | panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; |
112 | if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal) |
112 | if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal) |
113 | panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1; |
113 | panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1; |
114 | 114 | ||
115 | drm_mode_set_name(panel_fixed_mode); |
115 | drm_mode_set_name(panel_fixed_mode); |
116 | } |
116 | } |
117 | 117 | ||
118 | static bool |
118 | static bool |
119 | lvds_dvo_timing_equal_size(const struct lvds_dvo_timing *a, |
119 | lvds_dvo_timing_equal_size(const struct lvds_dvo_timing *a, |
120 | const struct lvds_dvo_timing *b) |
120 | const struct lvds_dvo_timing *b) |
121 | { |
121 | { |
122 | if (a->hactive_hi != b->hactive_hi || |
122 | if (a->hactive_hi != b->hactive_hi || |
123 | a->hactive_lo != b->hactive_lo) |
123 | a->hactive_lo != b->hactive_lo) |
124 | return false; |
124 | return false; |
125 | 125 | ||
126 | if (a->hsync_off_hi != b->hsync_off_hi || |
126 | if (a->hsync_off_hi != b->hsync_off_hi || |
127 | a->hsync_off_lo != b->hsync_off_lo) |
127 | a->hsync_off_lo != b->hsync_off_lo) |
128 | return false; |
128 | return false; |
129 | 129 | ||
130 | if (a->hsync_pulse_width != b->hsync_pulse_width) |
130 | if (a->hsync_pulse_width != b->hsync_pulse_width) |
131 | return false; |
131 | return false; |
132 | 132 | ||
133 | if (a->hblank_hi != b->hblank_hi || |
133 | if (a->hblank_hi != b->hblank_hi || |
134 | a->hblank_lo != b->hblank_lo) |
134 | a->hblank_lo != b->hblank_lo) |
135 | return false; |
135 | return false; |
136 | 136 | ||
137 | if (a->vactive_hi != b->vactive_hi || |
137 | if (a->vactive_hi != b->vactive_hi || |
138 | a->vactive_lo != b->vactive_lo) |
138 | a->vactive_lo != b->vactive_lo) |
139 | return false; |
139 | return false; |
140 | 140 | ||
141 | if (a->vsync_off != b->vsync_off) |
141 | if (a->vsync_off != b->vsync_off) |
142 | return false; |
142 | return false; |
143 | 143 | ||
144 | if (a->vsync_pulse_width != b->vsync_pulse_width) |
144 | if (a->vsync_pulse_width != b->vsync_pulse_width) |
145 | return false; |
145 | return false; |
146 | 146 | ||
147 | if (a->vblank_hi != b->vblank_hi || |
147 | if (a->vblank_hi != b->vblank_hi || |
148 | a->vblank_lo != b->vblank_lo) |
148 | a->vblank_lo != b->vblank_lo) |
149 | return false; |
149 | return false; |
150 | 150 | ||
151 | return true; |
151 | return true; |
152 | } |
152 | } |
153 | 153 | ||
154 | static const struct lvds_dvo_timing * |
154 | static const struct lvds_dvo_timing * |
155 | get_lvds_dvo_timing(const struct bdb_lvds_lfp_data *lvds_lfp_data, |
155 | get_lvds_dvo_timing(const struct bdb_lvds_lfp_data *lvds_lfp_data, |
156 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs, |
156 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs, |
157 | int index) |
157 | int index) |
158 | { |
158 | { |
159 | /* |
159 | /* |
160 | * the size of fp_timing varies on the different platform. |
160 | * the size of fp_timing varies on the different platform. |
161 | * So calculate the DVO timing relative offset in LVDS data |
161 | * So calculate the DVO timing relative offset in LVDS data |
162 | * entry to get the DVO timing entry |
162 | * entry to get the DVO timing entry |
163 | */ |
163 | */ |
164 | 164 | ||
165 | int lfp_data_size = |
165 | int lfp_data_size = |
166 | lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset - |
166 | lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset - |
167 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset; |
167 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset; |
168 | int dvo_timing_offset = |
168 | int dvo_timing_offset = |
169 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset - |
169 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset - |
170 | lvds_lfp_data_ptrs->ptr[0].fp_timing_offset; |
170 | lvds_lfp_data_ptrs->ptr[0].fp_timing_offset; |
171 | char *entry = (char *)lvds_lfp_data->data + lfp_data_size * index; |
171 | char *entry = (char *)lvds_lfp_data->data + lfp_data_size * index; |
172 | 172 | ||
173 | return (struct lvds_dvo_timing *)(entry + dvo_timing_offset); |
173 | return (struct lvds_dvo_timing *)(entry + dvo_timing_offset); |
174 | } |
174 | } |
175 | 175 | ||
176 | /* Try to find integrated panel data */ |
176 | /* Try to find integrated panel data */ |
177 | static void |
177 | static void |
178 | parse_lfp_panel_data(struct drm_i915_private *dev_priv, |
178 | parse_lfp_panel_data(struct drm_i915_private *dev_priv, |
179 | struct bdb_header *bdb) |
179 | struct bdb_header *bdb) |
180 | { |
180 | { |
181 | const struct bdb_lvds_options *lvds_options; |
181 | const struct bdb_lvds_options *lvds_options; |
182 | const struct bdb_lvds_lfp_data *lvds_lfp_data; |
182 | const struct bdb_lvds_lfp_data *lvds_lfp_data; |
183 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; |
183 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; |
184 | const struct lvds_dvo_timing *panel_dvo_timing; |
184 | const struct lvds_dvo_timing *panel_dvo_timing; |
185 | struct drm_display_mode *panel_fixed_mode; |
185 | struct drm_display_mode *panel_fixed_mode; |
186 | int i, downclock; |
186 | int i, downclock; |
187 | 187 | ||
188 | lvds_options = find_section(bdb, BDB_LVDS_OPTIONS); |
188 | lvds_options = find_section(bdb, BDB_LVDS_OPTIONS); |
189 | if (!lvds_options) |
189 | if (!lvds_options) |
190 | return; |
190 | return; |
191 | 191 | ||
192 | dev_priv->lvds_dither = lvds_options->pixel_dither; |
192 | dev_priv->lvds_dither = lvds_options->pixel_dither; |
193 | if (lvds_options->panel_type == 0xff) |
193 | if (lvds_options->panel_type == 0xff) |
194 | return; |
194 | return; |
195 | 195 | ||
196 | panel_type = lvds_options->panel_type; |
196 | panel_type = lvds_options->panel_type; |
197 | 197 | ||
198 | lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA); |
198 | lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA); |
199 | if (!lvds_lfp_data) |
199 | if (!lvds_lfp_data) |
200 | return; |
200 | return; |
201 | 201 | ||
202 | lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS); |
202 | lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS); |
203 | if (!lvds_lfp_data_ptrs) |
203 | if (!lvds_lfp_data_ptrs) |
204 | return; |
204 | return; |
205 | 205 | ||
206 | dev_priv->lvds_vbt = 1; |
206 | dev_priv->lvds_vbt = 1; |
207 | 207 | ||
208 | panel_dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
208 | panel_dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
209 | lvds_lfp_data_ptrs, |
209 | lvds_lfp_data_ptrs, |
210 | lvds_options->panel_type); |
210 | lvds_options->panel_type); |
211 | 211 | ||
212 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
212 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
213 | if (!panel_fixed_mode) |
213 | if (!panel_fixed_mode) |
214 | return; |
214 | return; |
215 | 215 | ||
216 | fill_detail_timing_data(panel_fixed_mode, panel_dvo_timing); |
216 | fill_detail_timing_data(panel_fixed_mode, panel_dvo_timing); |
217 | 217 | ||
218 | dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode; |
218 | dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode; |
219 | 219 | ||
220 | DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n"); |
220 | DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n"); |
221 | drm_mode_debug_printmodeline(panel_fixed_mode); |
221 | drm_mode_debug_printmodeline(panel_fixed_mode); |
222 | 222 | ||
223 | /* |
223 | /* |
224 | * Iterate over the LVDS panel timing info to find the lowest clock |
224 | * Iterate over the LVDS panel timing info to find the lowest clock |
225 | * for the native resolution. |
225 | * for the native resolution. |
226 | */ |
226 | */ |
227 | downclock = panel_dvo_timing->clock; |
227 | downclock = panel_dvo_timing->clock; |
228 | for (i = 0; i < 16; i++) { |
228 | for (i = 0; i < 16; i++) { |
229 | const struct lvds_dvo_timing *dvo_timing; |
229 | const struct lvds_dvo_timing *dvo_timing; |
230 | 230 | ||
231 | dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
231 | dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
232 | lvds_lfp_data_ptrs, |
232 | lvds_lfp_data_ptrs, |
233 | i); |
233 | i); |
234 | if (lvds_dvo_timing_equal_size(dvo_timing, panel_dvo_timing) && |
234 | if (lvds_dvo_timing_equal_size(dvo_timing, panel_dvo_timing) && |
235 | dvo_timing->clock < downclock) |
235 | dvo_timing->clock < downclock) |
236 | downclock = dvo_timing->clock; |
236 | downclock = dvo_timing->clock; |
237 | } |
237 | } |
238 | 238 | ||
239 | if (downclock < panel_dvo_timing->clock && i915_lvds_downclock) { |
239 | if (downclock < panel_dvo_timing->clock && i915_lvds_downclock) { |
240 | dev_priv->lvds_downclock_avail = 1; |
240 | dev_priv->lvds_downclock_avail = 1; |
241 | dev_priv->lvds_downclock = downclock * 10; |
241 | dev_priv->lvds_downclock = downclock * 10; |
242 | DRM_DEBUG_KMS("LVDS downclock is found in VBT. " |
242 | DRM_DEBUG_KMS("LVDS downclock is found in VBT. " |
243 | "Normal Clock %dKHz, downclock %dKHz\n", |
243 | "Normal Clock %dKHz, downclock %dKHz\n", |
244 | panel_fixed_mode->clock, 10*downclock); |
244 | panel_fixed_mode->clock, 10*downclock); |
245 | } |
245 | } |
246 | } |
246 | } |
247 | 247 | ||
248 | /* Try to find sdvo panel data */ |
248 | /* Try to find sdvo panel data */ |
249 | static void |
249 | static void |
250 | parse_sdvo_panel_data(struct drm_i915_private *dev_priv, |
250 | parse_sdvo_panel_data(struct drm_i915_private *dev_priv, |
251 | struct bdb_header *bdb) |
251 | struct bdb_header *bdb) |
252 | { |
252 | { |
253 | struct lvds_dvo_timing *dvo_timing; |
253 | struct lvds_dvo_timing *dvo_timing; |
254 | struct drm_display_mode *panel_fixed_mode; |
254 | struct drm_display_mode *panel_fixed_mode; |
255 | int index; |
255 | int index; |
256 | 256 | ||
257 | index = i915_vbt_sdvo_panel_type; |
257 | index = i915_vbt_sdvo_panel_type; |
258 | if (index == -1) { |
258 | if (index == -1) { |
259 | struct bdb_sdvo_lvds_options *sdvo_lvds_options; |
259 | struct bdb_sdvo_lvds_options *sdvo_lvds_options; |
260 | 260 | ||
261 | sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS); |
261 | sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS); |
262 | if (!sdvo_lvds_options) |
262 | if (!sdvo_lvds_options) |
263 | return; |
263 | return; |
264 | 264 | ||
265 | index = sdvo_lvds_options->panel_type; |
265 | index = sdvo_lvds_options->panel_type; |
266 | } |
266 | } |
267 | 267 | ||
268 | dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS); |
268 | dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS); |
269 | if (!dvo_timing) |
269 | if (!dvo_timing) |
270 | return; |
270 | return; |
271 | 271 | ||
272 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
272 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
273 | if (!panel_fixed_mode) |
273 | if (!panel_fixed_mode) |
274 | return; |
274 | return; |
275 | 275 | ||
276 | fill_detail_timing_data(panel_fixed_mode, dvo_timing + index); |
276 | fill_detail_timing_data(panel_fixed_mode, dvo_timing + index); |
277 | 277 | ||
278 | dev_priv->sdvo_lvds_vbt_mode = panel_fixed_mode; |
278 | dev_priv->sdvo_lvds_vbt_mode = panel_fixed_mode; |
279 | 279 | ||
280 | DRM_DEBUG_KMS("Found SDVO panel mode in BIOS VBT tables:\n"); |
280 | DRM_DEBUG_KMS("Found SDVO panel mode in BIOS VBT tables:\n"); |
281 | drm_mode_debug_printmodeline(panel_fixed_mode); |
281 | drm_mode_debug_printmodeline(panel_fixed_mode); |
282 | } |
282 | } |
283 | 283 | ||
284 | static int intel_bios_ssc_frequency(struct drm_device *dev, |
284 | static int intel_bios_ssc_frequency(struct drm_device *dev, |
285 | bool alternate) |
285 | bool alternate) |
286 | { |
286 | { |
287 | switch (INTEL_INFO(dev)->gen) { |
287 | switch (INTEL_INFO(dev)->gen) { |
288 | case 2: |
288 | case 2: |
289 | return alternate ? 66 : 48; |
289 | return alternate ? 66 : 48; |
290 | case 3: |
290 | case 3: |
291 | case 4: |
291 | case 4: |
292 | return alternate ? 100 : 96; |
292 | return alternate ? 100 : 96; |
293 | default: |
293 | default: |
294 | return alternate ? 100 : 120; |
294 | return alternate ? 100 : 120; |
295 | } |
295 | } |
296 | } |
296 | } |
297 | 297 | ||
298 | static void |
298 | static void |
299 | parse_general_features(struct drm_i915_private *dev_priv, |
299 | parse_general_features(struct drm_i915_private *dev_priv, |
300 | struct bdb_header *bdb) |
300 | struct bdb_header *bdb) |
301 | { |
301 | { |
302 | struct drm_device *dev = dev_priv->dev; |
302 | struct drm_device *dev = dev_priv->dev; |
303 | struct bdb_general_features *general; |
303 | struct bdb_general_features *general; |
304 | 304 | ||
305 | general = find_section(bdb, BDB_GENERAL_FEATURES); |
305 | general = find_section(bdb, BDB_GENERAL_FEATURES); |
306 | if (general) { |
306 | if (general) { |
307 | dev_priv->int_tv_support = general->int_tv_support; |
307 | dev_priv->int_tv_support = general->int_tv_support; |
308 | dev_priv->int_crt_support = general->int_crt_support; |
308 | dev_priv->int_crt_support = general->int_crt_support; |
309 | dev_priv->lvds_use_ssc = general->enable_ssc; |
309 | dev_priv->lvds_use_ssc = general->enable_ssc; |
310 | dev_priv->lvds_ssc_freq = |
310 | dev_priv->lvds_ssc_freq = |
311 | intel_bios_ssc_frequency(dev, general->ssc_freq); |
311 | intel_bios_ssc_frequency(dev, general->ssc_freq); |
312 | dev_priv->display_clock_mode = general->display_clock_mode; |
312 | dev_priv->display_clock_mode = general->display_clock_mode; |
313 | DRM_DEBUG_KMS("BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d\n", |
313 | DRM_DEBUG_KMS("BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d\n", |
314 | dev_priv->int_tv_support, |
314 | dev_priv->int_tv_support, |
315 | dev_priv->int_crt_support, |
315 | dev_priv->int_crt_support, |
316 | dev_priv->lvds_use_ssc, |
316 | dev_priv->lvds_use_ssc, |
317 | dev_priv->lvds_ssc_freq, |
317 | dev_priv->lvds_ssc_freq, |
318 | dev_priv->display_clock_mode); |
318 | dev_priv->display_clock_mode); |
319 | } |
319 | } |
320 | } |
320 | } |
321 | 321 | ||
322 | static void |
322 | static void |
323 | parse_general_definitions(struct drm_i915_private *dev_priv, |
323 | parse_general_definitions(struct drm_i915_private *dev_priv, |
324 | struct bdb_header *bdb) |
324 | struct bdb_header *bdb) |
325 | { |
325 | { |
326 | struct bdb_general_definitions *general; |
326 | struct bdb_general_definitions *general; |
327 | 327 | ||
328 | general = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
328 | general = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
329 | if (general) { |
329 | if (general) { |
330 | u16 block_size = get_blocksize(general); |
330 | u16 block_size = get_blocksize(general); |
331 | if (block_size >= sizeof(*general)) { |
331 | if (block_size >= sizeof(*general)) { |
332 | int bus_pin = general->crt_ddc_gmbus_pin; |
332 | int bus_pin = general->crt_ddc_gmbus_pin; |
333 | DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin); |
333 | DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin); |
334 | if (bus_pin >= 1 && bus_pin <= 6) |
334 | if (bus_pin >= 1 && bus_pin <= 6) |
335 | dev_priv->crt_ddc_pin = bus_pin; |
335 | dev_priv->crt_ddc_pin = bus_pin; |
336 | } else { |
336 | } else { |
337 | DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n", |
337 | DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n", |
338 | block_size); |
338 | block_size); |
339 | } |
339 | } |
340 | } |
340 | } |
341 | } |
341 | } |
342 | 342 | ||
343 | static void |
343 | static void |
344 | parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, |
344 | parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, |
345 | struct bdb_header *bdb) |
345 | struct bdb_header *bdb) |
346 | { |
346 | { |
347 | struct sdvo_device_mapping *p_mapping; |
347 | struct sdvo_device_mapping *p_mapping; |
348 | struct bdb_general_definitions *p_defs; |
348 | struct bdb_general_definitions *p_defs; |
349 | struct child_device_config *p_child; |
349 | struct child_device_config *p_child; |
350 | int i, child_device_num, count; |
350 | int i, child_device_num, count; |
351 | u16 block_size; |
351 | u16 block_size; |
352 | 352 | ||
353 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
353 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
354 | if (!p_defs) { |
354 | if (!p_defs) { |
355 | DRM_DEBUG_KMS("No general definition block is found, unable to construct sdvo mapping.\n"); |
355 | DRM_DEBUG_KMS("No general definition block is found, unable to construct sdvo mapping.\n"); |
356 | return; |
356 | return; |
357 | } |
357 | } |
358 | /* judge whether the size of child device meets the requirements. |
358 | /* judge whether the size of child device meets the requirements. |
359 | * If the child device size obtained from general definition block |
359 | * If the child device size obtained from general definition block |
360 | * is different with sizeof(struct child_device_config), skip the |
360 | * is different with sizeof(struct child_device_config), skip the |
361 | * parsing of sdvo device info |
361 | * parsing of sdvo device info |
362 | */ |
362 | */ |
363 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
363 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
364 | /* different child dev size . Ignore it */ |
364 | /* different child dev size . Ignore it */ |
365 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
365 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
366 | return; |
366 | return; |
367 | } |
367 | } |
368 | /* get the block size of general definitions */ |
368 | /* get the block size of general definitions */ |
369 | block_size = get_blocksize(p_defs); |
369 | block_size = get_blocksize(p_defs); |
370 | /* get the number of child device */ |
370 | /* get the number of child device */ |
371 | child_device_num = (block_size - sizeof(*p_defs)) / |
371 | child_device_num = (block_size - sizeof(*p_defs)) / |
372 | sizeof(*p_child); |
372 | sizeof(*p_child); |
373 | count = 0; |
373 | count = 0; |
374 | for (i = 0; i < child_device_num; i++) { |
374 | for (i = 0; i < child_device_num; i++) { |
375 | p_child = &(p_defs->devices[i]); |
375 | p_child = &(p_defs->devices[i]); |
376 | if (!p_child->device_type) { |
376 | if (!p_child->device_type) { |
377 | /* skip the device block if device type is invalid */ |
377 | /* skip the device block if device type is invalid */ |
378 | continue; |
378 | continue; |
379 | } |
379 | } |
380 | if (p_child->slave_addr != SLAVE_ADDR1 && |
380 | if (p_child->slave_addr != SLAVE_ADDR1 && |
381 | p_child->slave_addr != SLAVE_ADDR2) { |
381 | p_child->slave_addr != SLAVE_ADDR2) { |
382 | /* |
382 | /* |
383 | * If the slave address is neither 0x70 nor 0x72, |
383 | * If the slave address is neither 0x70 nor 0x72, |
384 | * it is not a SDVO device. Skip it. |
384 | * it is not a SDVO device. Skip it. |
385 | */ |
385 | */ |
386 | continue; |
386 | continue; |
387 | } |
387 | } |
388 | if (p_child->dvo_port != DEVICE_PORT_DVOB && |
388 | if (p_child->dvo_port != DEVICE_PORT_DVOB && |
389 | p_child->dvo_port != DEVICE_PORT_DVOC) { |
389 | p_child->dvo_port != DEVICE_PORT_DVOC) { |
390 | /* skip the incorrect SDVO port */ |
390 | /* skip the incorrect SDVO port */ |
391 | DRM_DEBUG_KMS("Incorrect SDVO port. Skip it\n"); |
391 | DRM_DEBUG_KMS("Incorrect SDVO port. Skip it\n"); |
392 | continue; |
392 | continue; |
393 | } |
393 | } |
394 | DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on" |
394 | DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on" |
395 | " %s port\n", |
395 | " %s port\n", |
396 | p_child->slave_addr, |
396 | p_child->slave_addr, |
397 | (p_child->dvo_port == DEVICE_PORT_DVOB) ? |
397 | (p_child->dvo_port == DEVICE_PORT_DVOB) ? |
398 | "SDVOB" : "SDVOC"); |
398 | "SDVOB" : "SDVOC"); |
399 | p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]); |
399 | p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]); |
400 | if (!p_mapping->initialized) { |
400 | if (!p_mapping->initialized) { |
401 | p_mapping->dvo_port = p_child->dvo_port; |
401 | p_mapping->dvo_port = p_child->dvo_port; |
402 | p_mapping->slave_addr = p_child->slave_addr; |
402 | p_mapping->slave_addr = p_child->slave_addr; |
403 | p_mapping->dvo_wiring = p_child->dvo_wiring; |
403 | p_mapping->dvo_wiring = p_child->dvo_wiring; |
404 | p_mapping->ddc_pin = p_child->ddc_pin; |
404 | p_mapping->ddc_pin = p_child->ddc_pin; |
405 | p_mapping->i2c_pin = p_child->i2c_pin; |
405 | p_mapping->i2c_pin = p_child->i2c_pin; |
406 | p_mapping->initialized = 1; |
406 | p_mapping->initialized = 1; |
407 | DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n", |
407 | DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n", |
408 | p_mapping->dvo_port, |
408 | p_mapping->dvo_port, |
409 | p_mapping->slave_addr, |
409 | p_mapping->slave_addr, |
410 | p_mapping->dvo_wiring, |
410 | p_mapping->dvo_wiring, |
411 | p_mapping->ddc_pin, |
411 | p_mapping->ddc_pin, |
412 | p_mapping->i2c_pin); |
412 | p_mapping->i2c_pin); |
413 | } else { |
413 | } else { |
414 | DRM_DEBUG_KMS("Maybe one SDVO port is shared by " |
414 | DRM_DEBUG_KMS("Maybe one SDVO port is shared by " |
415 | "two SDVO device.\n"); |
415 | "two SDVO device.\n"); |
416 | } |
416 | } |
417 | if (p_child->slave2_addr) { |
417 | if (p_child->slave2_addr) { |
418 | /* Maybe this is a SDVO device with multiple inputs */ |
418 | /* Maybe this is a SDVO device with multiple inputs */ |
419 | /* And the mapping info is not added */ |
419 | /* And the mapping info is not added */ |
420 | DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this" |
420 | DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this" |
421 | " is a SDVO device with multiple inputs.\n"); |
421 | " is a SDVO device with multiple inputs.\n"); |
422 | } |
422 | } |
423 | count++; |
423 | count++; |
424 | } |
424 | } |
425 | 425 | ||
426 | if (!count) { |
426 | if (!count) { |
427 | /* No SDVO device info is found */ |
427 | /* No SDVO device info is found */ |
428 | DRM_DEBUG_KMS("No SDVO device info is found in VBT\n"); |
428 | DRM_DEBUG_KMS("No SDVO device info is found in VBT\n"); |
429 | } |
429 | } |
430 | return; |
430 | return; |
431 | } |
431 | } |
432 | 432 | ||
433 | static void |
433 | static void |
434 | parse_driver_features(struct drm_i915_private *dev_priv, |
434 | parse_driver_features(struct drm_i915_private *dev_priv, |
435 | struct bdb_header *bdb) |
435 | struct bdb_header *bdb) |
436 | { |
436 | { |
437 | struct drm_device *dev = dev_priv->dev; |
437 | struct drm_device *dev = dev_priv->dev; |
438 | struct bdb_driver_features *driver; |
438 | struct bdb_driver_features *driver; |
439 | 439 | ||
440 | driver = find_section(bdb, BDB_DRIVER_FEATURES); |
440 | driver = find_section(bdb, BDB_DRIVER_FEATURES); |
441 | if (!driver) |
441 | if (!driver) |
442 | return; |
442 | return; |
443 | 443 | ||
444 | if (SUPPORTS_EDP(dev) && |
444 | if (SUPPORTS_EDP(dev) && |
445 | driver->lvds_config == BDB_DRIVER_FEATURE_EDP) |
445 | driver->lvds_config == BDB_DRIVER_FEATURE_EDP) |
446 | dev_priv->edp.support = 1; |
446 | dev_priv->edp.support = 1; |
447 | 447 | ||
448 | if (driver->dual_frequency) |
448 | if (driver->dual_frequency) |
449 | dev_priv->render_reclock_avail = true; |
449 | dev_priv->render_reclock_avail = true; |
450 | } |
450 | } |
451 | 451 | ||
452 | static void |
452 | static void |
453 | parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
453 | parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
454 | { |
454 | { |
455 | struct bdb_edp *edp; |
455 | struct bdb_edp *edp; |
456 | struct edp_power_seq *edp_pps; |
456 | struct edp_power_seq *edp_pps; |
457 | struct edp_link_params *edp_link_params; |
457 | struct edp_link_params *edp_link_params; |
458 | 458 | ||
459 | edp = find_section(bdb, BDB_EDP); |
459 | edp = find_section(bdb, BDB_EDP); |
460 | if (!edp) { |
460 | if (!edp) { |
461 | if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) { |
461 | if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) { |
462 | DRM_DEBUG_KMS("No eDP BDB found but eDP panel " |
462 | DRM_DEBUG_KMS("No eDP BDB found but eDP panel " |
463 | "supported, assume %dbpp panel color " |
463 | "supported, assume %dbpp panel color " |
464 | "depth.\n", |
464 | "depth.\n", |
465 | dev_priv->edp.bpp); |
465 | dev_priv->edp.bpp); |
466 | } |
466 | } |
467 | return; |
467 | return; |
468 | } |
468 | } |
469 | 469 | ||
470 | switch ((edp->color_depth >> (panel_type * 2)) & 3) { |
470 | switch ((edp->color_depth >> (panel_type * 2)) & 3) { |
471 | case EDP_18BPP: |
471 | case EDP_18BPP: |
472 | dev_priv->edp.bpp = 18; |
472 | dev_priv->edp.bpp = 18; |
473 | break; |
473 | break; |
474 | case EDP_24BPP: |
474 | case EDP_24BPP: |
475 | dev_priv->edp.bpp = 24; |
475 | dev_priv->edp.bpp = 24; |
476 | break; |
476 | break; |
477 | case EDP_30BPP: |
477 | case EDP_30BPP: |
478 | dev_priv->edp.bpp = 30; |
478 | dev_priv->edp.bpp = 30; |
479 | break; |
479 | break; |
480 | } |
480 | } |
481 | 481 | ||
482 | /* Get the eDP sequencing and link info */ |
482 | /* Get the eDP sequencing and link info */ |
483 | edp_pps = &edp->power_seqs[panel_type]; |
483 | edp_pps = &edp->power_seqs[panel_type]; |
484 | edp_link_params = &edp->link_params[panel_type]; |
484 | edp_link_params = &edp->link_params[panel_type]; |
485 | 485 | ||
486 | dev_priv->edp.pps = *edp_pps; |
486 | dev_priv->edp.pps = *edp_pps; |
487 | 487 | ||
488 | dev_priv->edp.rate = edp_link_params->rate ? DP_LINK_BW_2_7 : |
488 | dev_priv->edp.rate = edp_link_params->rate ? DP_LINK_BW_2_7 : |
489 | DP_LINK_BW_1_62; |
489 | DP_LINK_BW_1_62; |
490 | switch (edp_link_params->lanes) { |
490 | switch (edp_link_params->lanes) { |
491 | case 0: |
491 | case 0: |
492 | dev_priv->edp.lanes = 1; |
492 | dev_priv->edp.lanes = 1; |
493 | break; |
493 | break; |
494 | case 1: |
494 | case 1: |
495 | dev_priv->edp.lanes = 2; |
495 | dev_priv->edp.lanes = 2; |
496 | break; |
496 | break; |
497 | case 3: |
497 | case 3: |
498 | default: |
498 | default: |
499 | dev_priv->edp.lanes = 4; |
499 | dev_priv->edp.lanes = 4; |
500 | break; |
500 | break; |
501 | } |
501 | } |
502 | switch (edp_link_params->preemphasis) { |
502 | switch (edp_link_params->preemphasis) { |
503 | case 0: |
503 | case 0: |
504 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_0; |
504 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_0; |
505 | break; |
505 | break; |
506 | case 1: |
506 | case 1: |
507 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5; |
507 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5; |
508 | break; |
508 | break; |
509 | case 2: |
509 | case 2: |
510 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_6; |
510 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_6; |
511 | break; |
511 | break; |
512 | case 3: |
512 | case 3: |
513 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5; |
513 | dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5; |
514 | break; |
514 | break; |
515 | } |
515 | } |
516 | switch (edp_link_params->vswing) { |
516 | switch (edp_link_params->vswing) { |
517 | case 0: |
517 | case 0: |
518 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_400; |
518 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_400; |
519 | break; |
519 | break; |
520 | case 1: |
520 | case 1: |
521 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_600; |
521 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_600; |
522 | break; |
522 | break; |
523 | case 2: |
523 | case 2: |
524 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_800; |
524 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_800; |
525 | break; |
525 | break; |
526 | case 3: |
526 | case 3: |
527 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_1200; |
527 | dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_1200; |
528 | break; |
528 | break; |
529 | } |
529 | } |
530 | } |
530 | } |
531 | 531 | ||
532 | static void |
532 | static void |
533 | parse_device_mapping(struct drm_i915_private *dev_priv, |
533 | parse_device_mapping(struct drm_i915_private *dev_priv, |
534 | struct bdb_header *bdb) |
534 | struct bdb_header *bdb) |
535 | { |
535 | { |
536 | struct bdb_general_definitions *p_defs; |
536 | struct bdb_general_definitions *p_defs; |
537 | struct child_device_config *p_child, *child_dev_ptr; |
537 | struct child_device_config *p_child, *child_dev_ptr; |
538 | int i, child_device_num, count; |
538 | int i, child_device_num, count; |
539 | u16 block_size; |
539 | u16 block_size; |
540 | 540 | ||
541 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
541 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
542 | if (!p_defs) { |
542 | if (!p_defs) { |
543 | DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n"); |
543 | DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n"); |
544 | return; |
544 | return; |
545 | } |
545 | } |
546 | /* judge whether the size of child device meets the requirements. |
546 | /* judge whether the size of child device meets the requirements. |
547 | * If the child device size obtained from general definition block |
547 | * If the child device size obtained from general definition block |
548 | * is different with sizeof(struct child_device_config), skip the |
548 | * is different with sizeof(struct child_device_config), skip the |
549 | * parsing of sdvo device info |
549 | * parsing of sdvo device info |
550 | */ |
550 | */ |
551 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
551 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
552 | /* different child dev size . Ignore it */ |
552 | /* different child dev size . Ignore it */ |
553 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
553 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
554 | return; |
554 | return; |
555 | } |
555 | } |
556 | /* get the block size of general definitions */ |
556 | /* get the block size of general definitions */ |
557 | block_size = get_blocksize(p_defs); |
557 | block_size = get_blocksize(p_defs); |
558 | /* get the number of child device */ |
558 | /* get the number of child device */ |
559 | child_device_num = (block_size - sizeof(*p_defs)) / |
559 | child_device_num = (block_size - sizeof(*p_defs)) / |
560 | sizeof(*p_child); |
560 | sizeof(*p_child); |
561 | count = 0; |
561 | count = 0; |
562 | /* get the number of child device that is present */ |
562 | /* get the number of child device that is present */ |
563 | for (i = 0; i < child_device_num; i++) { |
563 | for (i = 0; i < child_device_num; i++) { |
564 | p_child = &(p_defs->devices[i]); |
564 | p_child = &(p_defs->devices[i]); |
565 | if (!p_child->device_type) { |
565 | if (!p_child->device_type) { |
566 | /* skip the device block if device type is invalid */ |
566 | /* skip the device block if device type is invalid */ |
567 | continue; |
567 | continue; |
568 | } |
568 | } |
569 | count++; |
569 | count++; |
570 | } |
570 | } |
571 | if (!count) { |
571 | if (!count) { |
572 | DRM_DEBUG_KMS("no child dev is parsed from VBT\n"); |
572 | DRM_DEBUG_KMS("no child dev is parsed from VBT\n"); |
573 | return; |
573 | return; |
574 | } |
574 | } |
575 | dev_priv->child_dev = kzalloc(sizeof(*p_child) * count, GFP_KERNEL); |
575 | dev_priv->child_dev = kzalloc(sizeof(*p_child) * count, GFP_KERNEL); |
576 | if (!dev_priv->child_dev) { |
576 | if (!dev_priv->child_dev) { |
577 | DRM_DEBUG_KMS("No memory space for child device\n"); |
577 | DRM_DEBUG_KMS("No memory space for child device\n"); |
578 | return; |
578 | return; |
579 | } |
579 | } |
580 | 580 | ||
581 | dev_priv->child_dev_num = count; |
581 | dev_priv->child_dev_num = count; |
582 | count = 0; |
582 | count = 0; |
583 | for (i = 0; i < child_device_num; i++) { |
583 | for (i = 0; i < child_device_num; i++) { |
584 | p_child = &(p_defs->devices[i]); |
584 | p_child = &(p_defs->devices[i]); |
585 | if (!p_child->device_type) { |
585 | if (!p_child->device_type) { |
586 | /* skip the device block if device type is invalid */ |
586 | /* skip the device block if device type is invalid */ |
587 | continue; |
587 | continue; |
588 | } |
588 | } |
589 | child_dev_ptr = dev_priv->child_dev + count; |
589 | child_dev_ptr = dev_priv->child_dev + count; |
590 | count++; |
590 | count++; |
591 | memcpy((void *)child_dev_ptr, (void *)p_child, |
591 | memcpy((void *)child_dev_ptr, (void *)p_child, |
592 | sizeof(*p_child)); |
592 | sizeof(*p_child)); |
593 | } |
593 | } |
594 | return; |
594 | return; |
595 | } |
595 | } |
596 | 596 | ||
597 | static void |
597 | static void |
598 | init_vbt_defaults(struct drm_i915_private *dev_priv) |
598 | init_vbt_defaults(struct drm_i915_private *dev_priv) |
599 | { |
599 | { |
600 | struct drm_device *dev = dev_priv->dev; |
600 | struct drm_device *dev = dev_priv->dev; |
601 | 601 | ||
602 | dev_priv->crt_ddc_pin = GMBUS_PORT_VGADDC; |
602 | dev_priv->crt_ddc_pin = GMBUS_PORT_VGADDC; |
603 | 603 | ||
604 | /* LFP panel data */ |
604 | /* LFP panel data */ |
605 | dev_priv->lvds_dither = 1; |
605 | dev_priv->lvds_dither = 1; |
606 | dev_priv->lvds_vbt = 0; |
606 | dev_priv->lvds_vbt = 0; |
607 | 607 | ||
608 | /* SDVO panel data */ |
608 | /* SDVO panel data */ |
609 | dev_priv->sdvo_lvds_vbt_mode = NULL; |
609 | dev_priv->sdvo_lvds_vbt_mode = NULL; |
610 | 610 | ||
611 | /* general features */ |
611 | /* general features */ |
612 | dev_priv->int_tv_support = 1; |
612 | dev_priv->int_tv_support = 1; |
613 | dev_priv->int_crt_support = 1; |
613 | dev_priv->int_crt_support = 1; |
614 | 614 | ||
615 | /* Default to using SSC */ |
615 | /* Default to using SSC */ |
616 | dev_priv->lvds_use_ssc = 1; |
616 | dev_priv->lvds_use_ssc = 1; |
617 | dev_priv->lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1); |
617 | dev_priv->lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1); |
618 | DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq); |
618 | DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq); |
619 | 619 | ||
620 | /* eDP data */ |
620 | /* eDP data */ |
621 | dev_priv->edp.bpp = 18; |
621 | dev_priv->edp.bpp = 18; |
622 | } |
622 | } |
623 | 623 | ||
624 | /** |
624 | /** |
625 | * intel_parse_bios - find VBT and initialize settings from the BIOS |
625 | * intel_parse_bios - find VBT and initialize settings from the BIOS |
626 | * @dev: DRM device |
626 | * @dev: DRM device |
627 | * |
627 | * |
628 | * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers |
628 | * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers |
629 | * to appropriate values. |
629 | * to appropriate values. |
630 | * |
630 | * |
631 | * Returns 0 on success, nonzero on failure. |
631 | * Returns 0 on success, nonzero on failure. |
632 | */ |
632 | */ |
633 | bool |
633 | bool |
634 | intel_parse_bios(struct drm_device *dev) |
634 | intel_parse_bios(struct drm_device *dev) |
635 | { |
635 | { |
636 | struct drm_i915_private *dev_priv = dev->dev_private; |
636 | struct drm_i915_private *dev_priv = dev->dev_private; |
637 | struct pci_dev *pdev = dev->pdev; |
637 | struct pci_dev *pdev = dev->pdev; |
638 | struct bdb_header *bdb = NULL; |
638 | struct bdb_header *bdb = NULL; |
639 | u8 __iomem *bios = NULL; |
639 | u8 __iomem *bios = NULL; |
640 | 640 | ||
641 | init_vbt_defaults(dev_priv); |
641 | init_vbt_defaults(dev_priv); |
642 | 642 | ||
643 | /* XXX Should this validation be moved to intel_opregion.c? */ |
643 | /* XXX Should this validation be moved to intel_opregion.c? */ |
644 | if (dev_priv->opregion.vbt) { |
644 | if (dev_priv->opregion.vbt) { |
645 | struct vbt_header *vbt = dev_priv->opregion.vbt; |
645 | struct vbt_header *vbt = dev_priv->opregion.vbt; |
646 | if (memcmp(vbt->signature, "$VBT", 4) == 0) { |
646 | if (memcmp(vbt->signature, "$VBT", 4) == 0) { |
647 | DRM_DEBUG_KMS("Using VBT from OpRegion: %20s\n", |
647 | DRM_DEBUG_KMS("Using VBT from OpRegion: %20s\n", |
648 | vbt->signature); |
648 | vbt->signature); |
649 | bdb = (struct bdb_header *)((char *)vbt + vbt->bdb_offset); |
649 | bdb = (struct bdb_header *)((char *)vbt + vbt->bdb_offset); |
650 | } else |
650 | } else |
651 | dev_priv->opregion.vbt = NULL; |
651 | dev_priv->opregion.vbt = NULL; |
652 | } |
652 | } |
653 | 653 | ||
654 | if (bdb == NULL) { |
654 | if (bdb == NULL) { |
655 | struct vbt_header *vbt = NULL; |
655 | struct vbt_header *vbt = NULL; |
656 | size_t size; |
656 | size_t size; |
657 | int i; |
657 | int i; |
658 | 658 | ||
659 | bios = pci_map_rom(pdev, &size); |
659 | bios = (void*)pci_map_rom(pdev, &size); |
660 | if (!bios) |
660 | if (!bios) |
661 | return -1; |
661 | return -1; |
662 | 662 | ||
663 | /* Scour memory looking for the VBT signature */ |
663 | /* Scour memory looking for the VBT signature */ |
664 | for (i = 0; i + 4 < size; i++) { |
664 | for (i = 0; i + 4 < size; i++) { |
665 | if (!memcmp(bios + i, "$VBT", 4)) { |
665 | if (!memcmp(bios + i, "$VBT", 4)) { |
666 | vbt = (struct vbt_header *)(bios + i); |
666 | vbt = (struct vbt_header *)(bios + i); |
667 | break; |
667 | break; |
668 | } |
668 | } |
669 | } |
669 | } |
670 | 670 | ||
671 | if (!vbt) { |
671 | if (!vbt) { |
672 | DRM_ERROR("VBT signature missing\n"); |
672 | DRM_ERROR("VBT signature missing\n"); |
673 | pci_unmap_rom(pdev, bios); |
673 | pci_unmap_rom(pdev, bios); |
674 | return -1; |
674 | return -1; |
675 | } |
675 | } |
676 | 676 | ||
677 | bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset); |
677 | bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset); |
678 | } |
678 | } |
679 | 679 | ||
680 | /* Grab useful general definitions */ |
680 | /* Grab useful general definitions */ |
681 | parse_general_features(dev_priv, bdb); |
681 | parse_general_features(dev_priv, bdb); |
682 | parse_general_definitions(dev_priv, bdb); |
682 | parse_general_definitions(dev_priv, bdb); |
683 | parse_lfp_panel_data(dev_priv, bdb); |
683 | parse_lfp_panel_data(dev_priv, bdb); |
684 | parse_sdvo_panel_data(dev_priv, bdb); |
684 | parse_sdvo_panel_data(dev_priv, bdb); |
685 | parse_sdvo_device_mapping(dev_priv, bdb); |
685 | parse_sdvo_device_mapping(dev_priv, bdb); |
686 | parse_device_mapping(dev_priv, bdb); |
686 | parse_device_mapping(dev_priv, bdb); |
687 | parse_driver_features(dev_priv, bdb); |
687 | parse_driver_features(dev_priv, bdb); |
688 | parse_edp(dev_priv, bdb); |
688 | parse_edp(dev_priv, bdb); |
689 | 689 | ||
690 | if (bios) |
690 | if (bios) |
691 | pci_unmap_rom(pdev, bios); |
691 | pci_unmap_rom(pdev, bios); |
692 | 692 | ||
693 | return 0; |
693 | return 0; |
694 | } |
694 | } |
695 | 695 | ||
696 | /* Ensure that vital registers have been initialised, even if the BIOS |
696 | /* Ensure that vital registers have been initialised, even if the BIOS |
697 | * is absent or just failing to do its job. |
697 | * is absent or just failing to do its job. |
698 | */ |
698 | */ |
699 | void intel_setup_bios(struct drm_device *dev) |
699 | void intel_setup_bios(struct drm_device *dev) |
700 | { |
700 | { |
701 | struct drm_i915_private *dev_priv = dev->dev_private; |
701 | struct drm_i915_private *dev_priv = dev->dev_private; |
702 | 702 | ||
703 | /* Set the Panel Power On/Off timings if uninitialized. */ |
703 | /* Set the Panel Power On/Off timings if uninitialized. */ |
704 | if ((I915_READ(PP_ON_DELAYS) == 0) && (I915_READ(PP_OFF_DELAYS) == 0)) { |
704 | if ((I915_READ(PP_ON_DELAYS) == 0) && (I915_READ(PP_OFF_DELAYS) == 0)) { |
705 | /* Set T2 to 40ms and T5 to 200ms */ |
705 | /* Set T2 to 40ms and T5 to 200ms */ |
706 | I915_WRITE(PP_ON_DELAYS, 0x019007d0); |
706 | I915_WRITE(PP_ON_DELAYS, 0x019007d0); |
707 | 707 | ||
708 | /* Set T3 to 35ms and Tx to 200ms */ |
708 | /* Set T3 to 35ms and Tx to 200ms */ |
709 | I915_WRITE(PP_OFF_DELAYS, 0x015e07d0); |
709 | I915_WRITE(PP_OFF_DELAYS, 0x015e07d0); |
710 | } |
710 | } |
711 | }>>>>=>>>>><>><>><>><>><>> |
711 | }>>>>=>>>>><>><>><>><>><>> |