summaryrefslogtreecommitdiff
path: root/packages/linux/linux-omap-2.6.27/mru-make-video-timings-selectable.diff
blob: bba3ef72cc2d6634ac14bb46d01e2eaa141708a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
From: Mans Rullgard <mans@mansr.com>
Date: Fri, 29 Aug 2008 01:42:12 +0000 (+0100)
Subject: OMAP: Make video mode selectable from pre-defined list
X-Git-Url: http://git.mansr.com/?p=linux-omap;a=commitdiff_plain;h=7a9e55d7156dae6bc930c77620a88a669d2ed1c9

OMAP: Make video mode selectable from pre-defined list

This adds a list of common video modes and allows one to be
selected with video=omapfb:mode:name on the command line,
overriding the defaults from lcd_*.c. A default named mode
can also be specified in the kernel configuration.

Signed-off-by: Mans Rullgard <mans@mansr.com>
---

diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index 5ebd591..9977e80 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -7,26 +7,13 @@ config FB_OMAP
 	help
           Frame buffer driver for OMAP based boards.
 
-choice
-	depends on FB_OMAP && MACH_OVERO
-	prompt "Screen resolution"
-	default FB_OMAP_079M3R
+config FB_OMAP_VIDEO_MODE
+	string "Default video mode"
+	depends on FB_OMAP
 	help
-	  Selected desired screen resolution
-
-config FB_OMAP_031M3R
-	boolean "640 x 480 @ 60 Hz Reduced blanking"
-
-config FB_OMAP_048M3R
-	boolean "800 x 600 @ 60 Hz Reduced blanking"
-
-config FB_OMAP_079M3R
-	boolean "1024 x 768 @ 60 Hz Reduced blanking"
-
-config FB_OMAP_092M9R
-	boolean "1280 x 720 @ 60 Hz Reduced blanking"
-
-endchoice
+	  Enter video mode name to use if none is specified on the kernel
+	  command line. If left blank, board-specific default timings
+	  will be used. See omapfb_main.c for a list of valid mode names.
 
 config FB_OMAP_LCDC_EXTERNAL
 	bool "External LCD controller support"
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index e9ffb92..c4c4049 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -36,6 +36,20 @@
 
 #define MODULE_NAME	"omapfb"
 
+struct video_mode {
+	const char	*name;
+	int		x_res, y_res;
+	int		pixel_clock;	/* In kHz */
+	int		hsw;		/* Horizontal synchronization
+					   pulse width */
+	int		hfp;		/* Horizontal front porch */
+	int		hbp;		/* Horizontal back porch */
+	int		vsw;		/* Vertical synchronization
+					   pulse width */
+	int		vfp;		/* Vertical front porch */
+	int		vbp;		/* Vertical back porch */
+};
+
 static unsigned int	def_accel;
 static unsigned long	def_vram[OMAPFB_PLANE_NUM];
 static unsigned int	def_vram_cnt;
@@ -43,6 +57,7 @@ static unsigned long	def_vxres;
 static unsigned long	def_vyres;
 static unsigned int	def_rotate;
 static unsigned int	def_mirror;
+static char		def_mode[16] = CONFIG_FB_OMAP_VIDEO_MODE;
 
 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
 static int		manual_update = 1;
@@ -53,6 +68,7 @@ static int		manual_update;
 static struct platform_device	*fbdev_pdev;
 static struct lcd_panel		*fbdev_panel;
 static struct omapfb_device	*omapfb_dev;
+static struct video_mode	video_mode;
 
 struct caps_table_struct {
 	unsigned long flag;
@@ -83,6 +99,152 @@ static struct caps_table_struct color_caps[] = {
 	{ 1 << OMAPFB_COLOR_YUY422,	"YUY422", },
 };
 
+static struct video_mode video_modes[] __initdata = {
+	{
+		/* 640 x 480 @ 60 Hz  Reduced blanking VESA CVT 0.31M3-R */
+		.name		= "640x480@60",
+		.x_res		= 640,
+		.y_res		= 480,
+		.hfp		= 48,
+		.hsw		= 32,
+		.hbp		= 80,
+		.vfp		= 3,
+		.vsw		= 4,
+		.vbp		= 7,
+		.pixel_clock	= 23500,
+	},
+	{
+		/* 800 x 600 @ 60 Hz  Reduced blanking VESA CVT 0.48M3-R */
+		.name		= "800x600@60",
+		.x_res		= 800,
+		.y_res		= 600,
+		.hfp		= 48,
+		.hsw		= 32,
+		.hbp		= 80,
+		.vfp		= 3,
+		.vsw		= 4,
+		.vbp		= 11,
+		.pixel_clock	= 35500,
+	},
+	{
+		/* 1024 x 768 @ 60 Hz  Reduced blanking VESA CVT 0.79M3-R */
+		.name		= "1024x768@60",
+		.x_res		= 1024,
+		.y_res		= 768,
+		.hfp		= 48,
+		.hsw		= 32,
+		.hbp		= 80,
+		.vfp		= 3,
+		.vsw		= 4,
+		.vbp		= 15,
+		.pixel_clock	= 56000,
+	},
+	{
+		/* 1280 x 720 @ 60 Hz  Reduced blanking VESA CVT 0.92M9-R */
+		.name		= "1280x720@60",
+		.x_res		= 1280,
+		.y_res		= 720,
+		.hfp		= 48,
+		.hsw		= 32,
+		.hbp		= 80,
+		.vfp		= 3,
+		.vsw		= 5,
+		.vbp		= 13,
+		.pixel_clock	= 64000,
+	},
+	{
+		/* 720 x 480 @ 60 Hz  CEA-861 Format 3 */
+		.name		= "480p60",
+		.x_res		= 720,
+		.y_res		= 480,
+		.hfp		= 16,
+		.hsw		= 62,
+		.hbp		= 60,
+		.vfp		= 9,
+		.vsw		= 6,
+		.vbp		= 30,
+		.pixel_clock	= 27027,
+	},
+	{
+		/* 720 x 576 @ 60 Hz  CEA-861 Format 18 */
+		.name		= "576p50",
+		.x_res		= 720,
+		.y_res		= 576,
+		.hfp		= 12,
+		.hsw		= 64,
+		.hbp		= 68,
+		.vfp		= 5,
+		.vsw		= 5,
+		.vbp		= 39,
+		.pixel_clock	= 27000,
+	},
+	{
+		/* 1280 x 720 @ 50 Hz  CEA-861B Format 19 */
+		.name 		= "720p50",
+		.x_res		= 1280,
+		.y_res		= 720,
+		.hfp		= 440,
+		.hsw		= 40,
+		.hbp		= 220,
+		.vfp		= 20,
+		.vsw		= 5,
+		.vbp		= 5,
+		.pixel_clock	= 74250,
+	},
+	{
+		/* 1280 x 720 @ 60 Hz  CEA-861B Format 4 */
+		.name		= "720p60",
+		.x_res		= 1280,
+		.y_res		= 720,
+		.hfp		= 110,
+		.hsw		= 40,
+		.hbp		= 220,
+		.vfp		= 20,
+		.vsw		= 5,
+		.vbp		= 5,
+		.pixel_clock	= 74250,
+	},
+	{
+		/* 1920 x 1080 @ 24 Hz  CEA-861B Format 32 */
+		.name		= "1080p24",
+		.x_res		= 1920,
+		.y_res		= 1080,
+		.hfp		= 148,
+		.hsw		= 44,
+		.hbp		= 638,
+		.vfp		= 36,
+		.vsw		= 5,
+		.vbp		= 4,
+		.pixel_clock	= 74250,
+	},
+	{
+		/* 1920 x 1080 @ 25 Hz  CEA-861B Format 33 */
+		.name		= "1080p25",
+		.x_res		= 1920,
+		.y_res		= 1080,
+		.hfp		= 148,
+		.hsw		= 44,
+		.hbp		= 528,
+		.vfp		= 36,
+		.vsw		= 5,
+		.vbp		= 4,
+		.pixel_clock	= 74250,
+	},
+	{
+		/* 1920 x 1080 @ 30 Hz  CEA-861B Format 34 */
+		.name		= "1080p30",
+		.x_res		= 1920,
+		.y_res		= 1080,
+		.hfp		= 148,
+		.hsw		= 44,
+		.hbp		= 88,
+		.vfp		= 36,
+		.vsw		= 5,
+		.vbp		= 4,
+		.pixel_clock	= 74250,
+	},
+};
+
 /*
  * ---------------------------------------------------------------------------
  * LCD panel
@@ -1714,6 +1876,20 @@ static int omapfb_do_probe(struct platform_device *pdev,
 		goto cleanup;
 	}
 
+	if (video_mode.name) {
+		pr_info("omapfb: using mode %s\n", video_mode.name);
+
+		fbdev->panel->x_res	= video_mode.x_res;
+		fbdev->panel->y_res	= video_mode.y_res;
+		fbdev->panel->pixel_clock = video_mode.pixel_clock;
+		fbdev->panel->hsw	= video_mode.hsw;
+		fbdev->panel->hfp	= video_mode.hfp;
+		fbdev->panel->hbp	= video_mode.hbp;
+		fbdev->panel->vsw	= video_mode.vsw;
+		fbdev->panel->vfp	= video_mode.vfp;
+		fbdev->panel->vbp	= video_mode.vbp;
+	}
+
 	r = fbdev->panel->init(fbdev->panel, fbdev);
 	if (r)
 		goto cleanup;
@@ -1870,6 +2046,17 @@ static struct platform_driver omapfb_driver = {
 	},
 };
 
+static void __init omapfb_find_mode(char *name, struct video_mode *vmode)
+{
+	int i;
+
+	for (i = 0; i < sizeof(video_modes)/sizeof(video_modes[0]); i++)
+		if (!strcmp(name, video_modes[i].name)) {
+			*vmode = video_modes[i];
+			break;
+		}
+}
+
 #ifndef MODULE
 
 /* Process kernel command line parameters */
@@ -1918,6 +2105,8 @@ static int __init omapfb_setup(char *options)
 			def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
 		else if (!strncmp(this_opt, "manual_update", 13))
 			manual_update = 1;
+		else if (!strncmp(this_opt, "mode:", 5))
+			strncpy(def_mode, this_opt + 5, sizeof(def_mode));
 		else {
 			pr_debug("omapfb: invalid option\n");
 			r = -1;
@@ -1939,6 +2128,9 @@ static int __init omapfb_init(void)
 		return -ENODEV;
 	omapfb_setup(option);
 #endif
+
+	omapfb_find_mode(def_mode, &video_mode);
+
 	/* Register the driver with LDM */
 	if (platform_driver_register(&omapfb_driver)) {
 		pr_debug("failed to register omapfb driver\n");
@@ -1960,6 +2152,7 @@ module_param_named(vyres, def_vyres, long, 0664);
 module_param_named(rotate, def_rotate, uint, 0664);
 module_param_named(mirror, def_mirror, uint, 0664);
 module_param_named(manual_update, manual_update, bool, 0664);
+module_param_string(video_mode, def_mode, sizeof(def_mode), 0664);
 
 module_init(omapfb_init);
 module_exit(omapfb_cleanup);