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
313
314
315
316
317
318
319
320
321
|
/*
* Analog TV Connector driver
*
* Copyright (C) 2013 Texas Instruments
* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
struct panel_drv_data {
struct omap_dss_device dssdev;
struct omap_dss_device *in;
struct device *dev;
struct omap_video_timings timings;
enum omap_dss_venc_type connector_type;
bool invert_polarity;
};
static const struct omap_video_timings tvc_pal_timings = {
.x_res = 720,
.y_res = 574,
.pixelclock = 13500000,
.hsw = 64,
.hfp = 12,
.hbp = 68,
.vsw = 5,
.vfp = 5,
.vbp = 41,
.interlace = true,
};
static const struct of_device_id tvc_of_match[];
struct tvc_of_data {
enum omap_dss_venc_type connector_type;
};
#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
static int tvc_connect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
dev_dbg(ddata->dev, "connect\n");
if (omapdss_device_is_connected(dssdev))
return 0;
r = in->ops.atv->connect(in, dssdev);
if (r)
return r;
return 0;
}
static void tvc_disconnect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
dev_dbg(ddata->dev, "disconnect\n");
if (!omapdss_device_is_connected(dssdev))
return;
in->ops.atv->disconnect(in, dssdev);
}
static int tvc_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
dev_dbg(ddata->dev, "enable\n");
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.atv->set_timings(in, &ddata->timings);
if (!ddata->dev->of_node) {
in->ops.atv->set_type(in, ddata->connector_type);
in->ops.atv->invert_vid_out_polarity(in,
ddata->invert_polarity);
}
r = in->ops.atv->enable(in);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return r;
}
static void tvc_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
dev_dbg(ddata->dev, "disable\n");
if (!omapdss_device_is_enabled(dssdev))
return;
in->ops.atv->disable(in);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static void tvc_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
ddata->timings = *timings;
dssdev->panel.timings = *timings;
in->ops.atv->set_timings(in, timings);
}
static void tvc_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*timings = ddata->timings;
}
static int tvc_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
return in->ops.atv->check_timings(in, timings);
}
static u32 tvc_get_wss(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
return in->ops.atv->get_wss(in);
}
static int tvc_set_wss(struct omap_dss_device *dssdev, u32 wss)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
return in->ops.atv->set_wss(in, wss);
}
static struct omap_dss_driver tvc_driver = {
.connect = tvc_connect,
.disconnect = tvc_disconnect,
.enable = tvc_enable,
.disable = tvc_disable,
.set_timings = tvc_set_timings,
.get_timings = tvc_get_timings,
.check_timings = tvc_check_timings,
.get_resolution = omapdss_default_get_resolution,
.get_wss = tvc_get_wss,
.set_wss = tvc_set_wss,
};
static int tvc_probe_pdata(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct connector_atv_platform_data *pdata;
struct omap_dss_device *in, *dssdev;
pdata = dev_get_platdata(&pdev->dev);
in = omap_dss_find_output(pdata->source);
if (in == NULL) {
dev_err(&pdev->dev, "Failed to find video source\n");
return -EPROBE_DEFER;
}
ddata->in = in;
ddata->connector_type = pdata->connector_type;
ddata->invert_polarity = ddata->invert_polarity;
dssdev = &ddata->dssdev;
dssdev->name = pdata->name;
return 0;
}
static int tvc_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct device_node *node = pdev->dev.of_node;
struct omap_dss_device *in;
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&pdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
return 0;
}
static int tvc_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
struct omap_dss_device *dssdev;
int r;
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
platform_set_drvdata(pdev, ddata);
ddata->dev = &pdev->dev;
if (dev_get_platdata(&pdev->dev)) {
r = tvc_probe_pdata(pdev);
if (r)
return r;
} else if (pdev->dev.of_node) {
r = tvc_probe_of(pdev);
if (r)
return r;
} else {
return -ENODEV;
}
ddata->timings = tvc_pal_timings;
dssdev = &ddata->dssdev;
dssdev->driver = &tvc_driver;
dssdev->dev = &pdev->dev;
dssdev->type = OMAP_DISPLAY_TYPE_VENC;
dssdev->owner = THIS_MODULE;
dssdev->panel.timings = tvc_pal_timings;
r = omapdss_register_display(dssdev);
if (r) {
dev_err(&pdev->dev, "Failed to register panel\n");
goto err_reg;
}
return 0;
err_reg:
omap_dss_put_device(ddata->in);
return r;
}
static int __exit tvc_remove(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
struct omap_dss_device *in = ddata->in;
omapdss_unregister_display(&ddata->dssdev);
tvc_disable(dssdev);
tvc_disconnect(dssdev);
omap_dss_put_device(in);
return 0;
}
static const struct of_device_id tvc_of_match[] = {
{ .compatible = "omapdss,svideo-connector", },
{ .compatible = "omapdss,composite-video-connector", },
{},
};
MODULE_DEVICE_TABLE(of, tvc_of_match);
static struct platform_driver tvc_connector_driver = {
.probe = tvc_probe,
.remove = __exit_p(tvc_remove),
.driver = {
.name = "connector-analog-tv",
.owner = THIS_MODULE,
.of_match_table = tvc_of_match,
.suppress_bind_attrs = true,
},
};
module_platform_driver(tvc_connector_driver);
MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
MODULE_DESCRIPTION("Analog TV Connector driver");
MODULE_LICENSE("GPL");
|
