2 * Analog TV Connector driver
4 * Copyright (C) 2013 Texas Instruments
5 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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.
12 #include <linux/slab.h>
13 #include <linux/module.h>
14 #include <linux/platform_device.h>
16 #include <video/omapdss.h>
17 #include <video/omap-panel-data.h>
19 struct panel_drv_data {
20 struct omap_dss_device dssdev;
21 struct omap_dss_device *in;
25 struct omap_video_timings timings;
27 enum omap_dss_venc_type connector_type;
31 #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
33 static int tvc_connect(struct omap_dss_device *dssdev)
35 struct panel_drv_data *ddata = to_panel_data(dssdev);
36 struct omap_dss_device *in = ddata->in;
39 dev_dbg(ddata->dev, "connect\n");
41 if (omapdss_device_is_connected(dssdev))
44 r = in->ops.atv->connect(in, dssdev);
51 static void tvc_disconnect(struct omap_dss_device *dssdev)
53 struct panel_drv_data *ddata = to_panel_data(dssdev);
54 struct omap_dss_device *in = ddata->in;
56 dev_dbg(ddata->dev, "disconnect\n");
58 if (!omapdss_device_is_connected(dssdev))
61 in->ops.atv->disconnect(in, dssdev);
64 static int tvc_enable(struct omap_dss_device *dssdev)
66 struct panel_drv_data *ddata = to_panel_data(dssdev);
67 struct omap_dss_device *in = ddata->in;
70 dev_dbg(ddata->dev, "enable\n");
72 if (!omapdss_device_is_connected(dssdev))
75 if (omapdss_device_is_enabled(dssdev))
78 in->ops.atv->set_timings(in, &ddata->timings);
80 in->ops.atv->set_type(in, ddata->connector_type);
81 in->ops.atv->invert_vid_out_polarity(in, ddata->invert_polarity);
83 r = in->ops.atv->enable(in);
87 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
92 static void tvc_disable(struct omap_dss_device *dssdev)
94 struct panel_drv_data *ddata = to_panel_data(dssdev);
95 struct omap_dss_device *in = ddata->in;
97 dev_dbg(ddata->dev, "disable\n");
99 if (!omapdss_device_is_enabled(dssdev))
102 in->ops.atv->disable(in);
104 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
107 static void tvc_set_timings(struct omap_dss_device *dssdev,
108 struct omap_video_timings *timings)
110 struct panel_drv_data *ddata = to_panel_data(dssdev);
111 struct omap_dss_device *in = ddata->in;
113 ddata->timings = *timings;
114 dssdev->panel.timings = *timings;
116 in->ops.atv->set_timings(in, timings);
119 static void tvc_get_timings(struct omap_dss_device *dssdev,
120 struct omap_video_timings *timings)
122 struct panel_drv_data *ddata = to_panel_data(dssdev);
124 *timings = ddata->timings;
127 static int tvc_check_timings(struct omap_dss_device *dssdev,
128 struct omap_video_timings *timings)
130 struct panel_drv_data *ddata = to_panel_data(dssdev);
131 struct omap_dss_device *in = ddata->in;
133 return in->ops.atv->check_timings(in, timings);
136 static u32 tvc_get_wss(struct omap_dss_device *dssdev)
138 struct panel_drv_data *ddata = to_panel_data(dssdev);
139 struct omap_dss_device *in = ddata->in;
141 return in->ops.atv->get_wss(in);
144 static int tvc_set_wss(struct omap_dss_device *dssdev, u32 wss)
146 struct panel_drv_data *ddata = to_panel_data(dssdev);
147 struct omap_dss_device *in = ddata->in;
149 return in->ops.atv->set_wss(in, wss);
152 static struct omap_dss_driver tvc_driver = {
153 .connect = tvc_connect,
154 .disconnect = tvc_disconnect,
156 .enable = tvc_enable,
157 .disable = tvc_disable,
159 .set_timings = tvc_set_timings,
160 .get_timings = tvc_get_timings,
161 .check_timings = tvc_check_timings,
163 .get_resolution = omapdss_default_get_resolution,
165 .get_wss = tvc_get_wss,
166 .set_wss = tvc_set_wss,
169 static int tvc_probe_pdata(struct platform_device *pdev)
171 struct panel_drv_data *ddata = platform_get_drvdata(pdev);
172 struct connector_atv_platform_data *pdata;
173 struct omap_dss_device *in, *dssdev;
175 pdata = dev_get_platdata(&pdev->dev);
177 in = omap_dss_find_output(pdata->source);
179 dev_err(&pdev->dev, "Failed to find video source\n");
185 ddata->connector_type = pdata->connector_type;
186 ddata->invert_polarity = ddata->invert_polarity;
188 dssdev = &ddata->dssdev;
189 dssdev->name = pdata->name;
194 static int tvc_probe(struct platform_device *pdev)
196 struct panel_drv_data *ddata;
197 struct omap_dss_device *dssdev;
200 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
204 platform_set_drvdata(pdev, ddata);
205 ddata->dev = &pdev->dev;
207 if (dev_get_platdata(&pdev->dev)) {
208 r = tvc_probe_pdata(pdev);
215 ddata->timings = omap_dss_pal_timings;
217 dssdev = &ddata->dssdev;
218 dssdev->driver = &tvc_driver;
219 dssdev->dev = &pdev->dev;
220 dssdev->type = OMAP_DISPLAY_TYPE_VENC;
221 dssdev->owner = THIS_MODULE;
222 dssdev->panel.timings = omap_dss_pal_timings;
224 r = omapdss_register_display(dssdev);
226 dev_err(&pdev->dev, "Failed to register panel\n");
232 omap_dss_put_device(ddata->in);
236 static int __exit tvc_remove(struct platform_device *pdev)
238 struct panel_drv_data *ddata = platform_get_drvdata(pdev);
239 struct omap_dss_device *dssdev = &ddata->dssdev;
240 struct omap_dss_device *in = ddata->in;
242 omapdss_unregister_display(&ddata->dssdev);
245 tvc_disconnect(dssdev);
247 omap_dss_put_device(in);
252 static struct platform_driver tvc_connector_driver = {
254 .remove = __exit_p(tvc_remove),
256 .name = "connector-analog-tv",
257 .owner = THIS_MODULE,
261 module_platform_driver(tvc_connector_driver);
263 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
264 MODULE_DESCRIPTION("Analog TV Connector driver");
265 MODULE_LICENSE("GPL");