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156fd99e AT |
1 | /* |
2 | * Copyright (C) 2009 Nokia Corporation | |
3 | * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> | |
4 | * | |
5 | * VENC panel driver | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/err.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/mutex.h> | |
24 | #include <linux/module.h> | |
25 | ||
26 | #include <video/omapdss.h> | |
27 | ||
28 | #include "dss.h" | |
29 | ||
30 | static struct { | |
31 | struct mutex lock; | |
32 | } venc_panel; | |
33 | ||
34 | static ssize_t display_output_type_show(struct device *dev, | |
35 | struct device_attribute *attr, char *buf) | |
36 | { | |
37 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
38 | const char *ret; | |
39 | ||
40 | switch (dssdev->phy.venc.type) { | |
41 | case OMAP_DSS_VENC_TYPE_COMPOSITE: | |
42 | ret = "composite"; | |
43 | break; | |
44 | case OMAP_DSS_VENC_TYPE_SVIDEO: | |
45 | ret = "svideo"; | |
46 | break; | |
47 | default: | |
48 | return -EINVAL; | |
49 | } | |
50 | ||
51 | return snprintf(buf, PAGE_SIZE, "%s\n", ret); | |
52 | } | |
53 | ||
54 | static ssize_t display_output_type_store(struct device *dev, | |
55 | struct device_attribute *attr, const char *buf, size_t size) | |
56 | { | |
57 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
58 | enum omap_dss_venc_type new_type; | |
59 | ||
60 | if (sysfs_streq("composite", buf)) | |
61 | new_type = OMAP_DSS_VENC_TYPE_COMPOSITE; | |
62 | else if (sysfs_streq("svideo", buf)) | |
63 | new_type = OMAP_DSS_VENC_TYPE_SVIDEO; | |
64 | else | |
65 | return -EINVAL; | |
66 | ||
67 | mutex_lock(&venc_panel.lock); | |
68 | ||
69 | if (dssdev->phy.venc.type != new_type) { | |
70 | dssdev->phy.venc.type = new_type; | |
febe2905 | 71 | omapdss_venc_set_type(dssdev, new_type); |
156fd99e AT |
72 | if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { |
73 | omapdss_venc_display_disable(dssdev); | |
74 | omapdss_venc_display_enable(dssdev); | |
75 | } | |
76 | } | |
77 | ||
78 | mutex_unlock(&venc_panel.lock); | |
79 | ||
80 | return size; | |
81 | } | |
82 | ||
83 | static DEVICE_ATTR(output_type, S_IRUGO | S_IWUSR, | |
84 | display_output_type_show, display_output_type_store); | |
85 | ||
86 | static int venc_panel_probe(struct omap_dss_device *dssdev) | |
87 | { | |
88 | /* set default timings to PAL */ | |
89 | const struct omap_video_timings default_timings = { | |
90 | .x_res = 720, | |
91 | .y_res = 574, | |
d8d78941 | 92 | .pixelclock = 13500000, |
156fd99e AT |
93 | .hsw = 64, |
94 | .hfp = 12, | |
95 | .hbp = 68, | |
96 | .vsw = 5, | |
97 | .vfp = 5, | |
98 | .vbp = 41, | |
99 | ||
100 | .vsync_level = OMAPDSS_SIG_ACTIVE_HIGH, | |
101 | .hsync_level = OMAPDSS_SIG_ACTIVE_HIGH, | |
102 | ||
103 | .interlace = true, | |
104 | }; | |
105 | ||
106 | mutex_init(&venc_panel.lock); | |
107 | ||
108 | dssdev->panel.timings = default_timings; | |
109 | ||
ecc8b370 | 110 | return device_create_file(dssdev->dev, &dev_attr_output_type); |
156fd99e AT |
111 | } |
112 | ||
113 | static void venc_panel_remove(struct omap_dss_device *dssdev) | |
114 | { | |
ecc8b370 | 115 | device_remove_file(dssdev->dev, &dev_attr_output_type); |
156fd99e AT |
116 | } |
117 | ||
118 | static int venc_panel_enable(struct omap_dss_device *dssdev) | |
119 | { | |
120 | int r; | |
121 | ||
ecc8b370 | 122 | dev_dbg(dssdev->dev, "venc_panel_enable\n"); |
156fd99e AT |
123 | |
124 | mutex_lock(&venc_panel.lock); | |
125 | ||
126 | if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { | |
127 | r = -EINVAL; | |
128 | goto err; | |
129 | } | |
130 | ||
a5abf472 | 131 | omapdss_venc_set_timings(dssdev, &dssdev->panel.timings); |
febe2905 | 132 | omapdss_venc_set_type(dssdev, dssdev->phy.venc.type); |
89e71956 AT |
133 | omapdss_venc_invert_vid_out_polarity(dssdev, |
134 | dssdev->phy.venc.invert_polarity); | |
a5abf472 | 135 | |
156fd99e AT |
136 | r = omapdss_venc_display_enable(dssdev); |
137 | if (r) | |
138 | goto err; | |
139 | ||
140 | dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; | |
141 | ||
142 | mutex_unlock(&venc_panel.lock); | |
143 | ||
144 | return 0; | |
145 | err: | |
146 | mutex_unlock(&venc_panel.lock); | |
147 | ||
148 | return r; | |
149 | } | |
150 | ||
151 | static void venc_panel_disable(struct omap_dss_device *dssdev) | |
152 | { | |
ecc8b370 | 153 | dev_dbg(dssdev->dev, "venc_panel_disable\n"); |
156fd99e AT |
154 | |
155 | mutex_lock(&venc_panel.lock); | |
156 | ||
157 | if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) | |
158 | goto end; | |
159 | ||
156fd99e AT |
160 | omapdss_venc_display_disable(dssdev); |
161 | ||
162 | dssdev->state = OMAP_DSS_DISPLAY_DISABLED; | |
163 | end: | |
164 | mutex_unlock(&venc_panel.lock); | |
165 | } | |
166 | ||
156fd99e AT |
167 | static void venc_panel_set_timings(struct omap_dss_device *dssdev, |
168 | struct omap_video_timings *timings) | |
169 | { | |
ecc8b370 | 170 | dev_dbg(dssdev->dev, "venc_panel_set_timings\n"); |
156fd99e AT |
171 | |
172 | mutex_lock(&venc_panel.lock); | |
173 | ||
174 | omapdss_venc_set_timings(dssdev, timings); | |
a5abf472 | 175 | dssdev->panel.timings = *timings; |
156fd99e AT |
176 | |
177 | mutex_unlock(&venc_panel.lock); | |
178 | } | |
179 | ||
180 | static int venc_panel_check_timings(struct omap_dss_device *dssdev, | |
181 | struct omap_video_timings *timings) | |
182 | { | |
ecc8b370 | 183 | dev_dbg(dssdev->dev, "venc_panel_check_timings\n"); |
156fd99e AT |
184 | |
185 | return omapdss_venc_check_timings(dssdev, timings); | |
186 | } | |
187 | ||
188 | static u32 venc_panel_get_wss(struct omap_dss_device *dssdev) | |
189 | { | |
ecc8b370 | 190 | dev_dbg(dssdev->dev, "venc_panel_get_wss\n"); |
156fd99e AT |
191 | |
192 | return omapdss_venc_get_wss(dssdev); | |
193 | } | |
194 | ||
195 | static int venc_panel_set_wss(struct omap_dss_device *dssdev, u32 wss) | |
196 | { | |
ecc8b370 | 197 | dev_dbg(dssdev->dev, "venc_panel_set_wss\n"); |
156fd99e AT |
198 | |
199 | return omapdss_venc_set_wss(dssdev, wss); | |
200 | } | |
201 | ||
202 | static struct omap_dss_driver venc_driver = { | |
203 | .probe = venc_panel_probe, | |
204 | .remove = venc_panel_remove, | |
205 | ||
206 | .enable = venc_panel_enable, | |
207 | .disable = venc_panel_disable, | |
156fd99e AT |
208 | |
209 | .get_resolution = omapdss_default_get_resolution, | |
210 | .get_recommended_bpp = omapdss_default_get_recommended_bpp, | |
211 | ||
212 | .set_timings = venc_panel_set_timings, | |
213 | .check_timings = venc_panel_check_timings, | |
214 | ||
215 | .get_wss = venc_panel_get_wss, | |
216 | .set_wss = venc_panel_set_wss, | |
217 | ||
218 | .driver = { | |
219 | .name = "venc", | |
220 | .owner = THIS_MODULE, | |
221 | }, | |
222 | }; | |
223 | ||
224 | int venc_panel_init(void) | |
225 | { | |
226 | return omap_dss_register_driver(&venc_driver); | |
227 | } | |
228 | ||
229 | void venc_panel_exit(void) | |
230 | { | |
231 | omap_dss_unregister_driver(&venc_driver); | |
232 | } |