This source file includes following definitions.
- omapdss_get_default_display_name
- omapdss_get_version
- dss_get_core_pdev
- dss_dsi_enable_pads
- dss_dsi_disable_pads
- dss_set_min_bus_tput
- dss_show
- dss_initialize_debugfs
- dss_uninitialize_debugfs
- dss_debugfs_create_file
- dss_initialize_debugfs
- dss_uninitialize_debugfs
- dss_debugfs_create_file
- omap_dss_pm_notif
- omap_dss_probe
- omap_dss_remove
- omap_dss_shutdown
- omap_dss_init
- omap_dss_exit
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12 #define DSS_SUBSYS_NAME "CORE"
13
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/clk.h>
17 #include <linux/err.h>
18 #include <linux/platform_device.h>
19 #include <linux/seq_file.h>
20 #include <linux/debugfs.h>
21 #include <linux/io.h>
22 #include <linux/device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/suspend.h>
25 #include <linux/slab.h>
26
27 #include <video/omapfb_dss.h>
28
29 #include "dss.h"
30 #include "dss_features.h"
31
32 static struct {
33 struct platform_device *pdev;
34
35 const char *default_display_name;
36 } core;
37
38 static char *def_disp_name;
39 module_param_named(def_disp, def_disp_name, charp, 0);
40 MODULE_PARM_DESC(def_disp, "default display name");
41
42 const char *omapdss_get_default_display_name(void)
43 {
44 return core.default_display_name;
45 }
46 EXPORT_SYMBOL(omapdss_get_default_display_name);
47
48 enum omapdss_version omapdss_get_version(void)
49 {
50 struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
51 return pdata->version;
52 }
53 EXPORT_SYMBOL(omapdss_get_version);
54
55 struct platform_device *dss_get_core_pdev(void)
56 {
57 return core.pdev;
58 }
59
60 int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask)
61 {
62 struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
63
64 if (!board_data->dsi_enable_pads)
65 return -ENOENT;
66
67 return board_data->dsi_enable_pads(dsi_id, lane_mask);
68 }
69
70 void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask)
71 {
72 struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
73
74 if (!board_data->dsi_disable_pads)
75 return;
76
77 return board_data->dsi_disable_pads(dsi_id, lane_mask);
78 }
79
80 int dss_set_min_bus_tput(struct device *dev, unsigned long tput)
81 {
82 struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
83
84 if (pdata->set_min_bus_tput)
85 return pdata->set_min_bus_tput(dev, tput);
86 else
87 return 0;
88 }
89
90 #if defined(CONFIG_FB_OMAP2_DSS_DEBUGFS)
91 static int dss_show(struct seq_file *s, void *unused)
92 {
93 void (*func)(struct seq_file *) = s->private;
94 func(s);
95 return 0;
96 }
97
98 DEFINE_SHOW_ATTRIBUTE(dss);
99
100 static struct dentry *dss_debugfs_dir;
101
102 static void dss_initialize_debugfs(void)
103 {
104 dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
105
106 debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
107 &dss_debug_dump_clocks, &dss_fops);
108 }
109
110 static void dss_uninitialize_debugfs(void)
111 {
112 debugfs_remove_recursive(dss_debugfs_dir);
113 }
114
115 void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
116 {
117 debugfs_create_file(name, S_IRUGO, dss_debugfs_dir, write, &dss_fops);
118 }
119 #else
120 static inline void dss_initialize_debugfs(void)
121 {
122 }
123 static inline void dss_uninitialize_debugfs(void)
124 {
125 }
126 void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
127 {
128 }
129 #endif
130
131
132 static int omap_dss_pm_notif(struct notifier_block *b, unsigned long v, void *d)
133 {
134 DSSDBG("pm notif %lu\n", v);
135
136 switch (v) {
137 case PM_SUSPEND_PREPARE:
138 case PM_HIBERNATION_PREPARE:
139 case PM_RESTORE_PREPARE:
140 DSSDBG("suspending displays\n");
141 return dss_suspend_all_devices();
142
143 case PM_POST_SUSPEND:
144 case PM_POST_HIBERNATION:
145 case PM_POST_RESTORE:
146 DSSDBG("resuming displays\n");
147 return dss_resume_all_devices();
148
149 default:
150 return 0;
151 }
152 }
153
154 static struct notifier_block omap_dss_pm_notif_block = {
155 .notifier_call = omap_dss_pm_notif,
156 };
157
158 static int __init omap_dss_probe(struct platform_device *pdev)
159 {
160 core.pdev = pdev;
161
162 dss_features_init(omapdss_get_version());
163
164 dss_initialize_debugfs();
165
166 if (def_disp_name)
167 core.default_display_name = def_disp_name;
168
169 register_pm_notifier(&omap_dss_pm_notif_block);
170
171 return 0;
172 }
173
174 static int omap_dss_remove(struct platform_device *pdev)
175 {
176 unregister_pm_notifier(&omap_dss_pm_notif_block);
177
178 dss_uninitialize_debugfs();
179
180 return 0;
181 }
182
183 static void omap_dss_shutdown(struct platform_device *pdev)
184 {
185 DSSDBG("shutdown\n");
186 dss_disable_all_devices();
187 }
188
189 static struct platform_driver omap_dss_driver = {
190 .remove = omap_dss_remove,
191 .shutdown = omap_dss_shutdown,
192 .driver = {
193 .name = "omapdss",
194 },
195 };
196
197
198 static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
199 dss_init_platform_driver,
200 dispc_init_platform_driver,
201 #ifdef CONFIG_FB_OMAP2_DSS_DSI
202 dsi_init_platform_driver,
203 #endif
204 #ifdef CONFIG_FB_OMAP2_DSS_DPI
205 dpi_init_platform_driver,
206 #endif
207 #ifdef CONFIG_FB_OMAP2_DSS_SDI
208 sdi_init_platform_driver,
209 #endif
210 #ifdef CONFIG_FB_OMAP2_DSS_VENC
211 venc_init_platform_driver,
212 #endif
213 #ifdef CONFIG_FB_OMAP4_DSS_HDMI
214 hdmi4_init_platform_driver,
215 #endif
216 #ifdef CONFIG_FB_OMAP5_DSS_HDMI
217 hdmi5_init_platform_driver,
218 #endif
219 };
220
221 static void (*dss_output_drv_unreg_funcs[])(void) = {
222 #ifdef CONFIG_FB_OMAP5_DSS_HDMI
223 hdmi5_uninit_platform_driver,
224 #endif
225 #ifdef CONFIG_FB_OMAP4_DSS_HDMI
226 hdmi4_uninit_platform_driver,
227 #endif
228 #ifdef CONFIG_FB_OMAP2_DSS_VENC
229 venc_uninit_platform_driver,
230 #endif
231 #ifdef CONFIG_FB_OMAP2_DSS_SDI
232 sdi_uninit_platform_driver,
233 #endif
234 #ifdef CONFIG_FB_OMAP2_DSS_DPI
235 dpi_uninit_platform_driver,
236 #endif
237 #ifdef CONFIG_FB_OMAP2_DSS_DSI
238 dsi_uninit_platform_driver,
239 #endif
240 dispc_uninit_platform_driver,
241 dss_uninit_platform_driver,
242 };
243
244 static int __init omap_dss_init(void)
245 {
246 int r;
247 int i;
248
249 r = platform_driver_probe(&omap_dss_driver, omap_dss_probe);
250 if (r)
251 return r;
252
253 for (i = 0; i < ARRAY_SIZE(dss_output_drv_reg_funcs); ++i) {
254 r = dss_output_drv_reg_funcs[i]();
255 if (r)
256 goto err_reg;
257 }
258
259 return 0;
260
261 err_reg:
262 for (i = ARRAY_SIZE(dss_output_drv_reg_funcs) - i;
263 i < ARRAY_SIZE(dss_output_drv_reg_funcs);
264 ++i)
265 dss_output_drv_unreg_funcs[i]();
266
267 platform_driver_unregister(&omap_dss_driver);
268
269 return r;
270 }
271
272 static void __exit omap_dss_exit(void)
273 {
274 int i;
275
276 for (i = 0; i < ARRAY_SIZE(dss_output_drv_unreg_funcs); ++i)
277 dss_output_drv_unreg_funcs[i]();
278
279 platform_driver_unregister(&omap_dss_driver);
280 }
281
282 module_init(omap_dss_init);
283 module_exit(omap_dss_exit);
284
285 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
286 MODULE_DESCRIPTION("OMAP2/3 Display Subsystem");
287 MODULE_LICENSE("GPL v2");
288