diff options
Diffstat (limited to 'drivers/video/omap2/displays-new/connector-analog-tv.c')
-rw-r--r-- | drivers/video/omap2/displays-new/connector-analog-tv.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/drivers/video/omap2/displays-new/connector-analog-tv.c b/drivers/video/omap2/displays-new/connector-analog-tv.c new file mode 100644 index 00000000000..5338f362293 --- /dev/null +++ b/drivers/video/omap2/displays-new/connector-analog-tv.c @@ -0,0 +1,265 @@ +/* + * 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 <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; +}; + +#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); + + 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 -ENODEV; + } + + 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(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 { + return -ENODEV; + } + + ddata->timings = omap_dss_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 = omap_dss_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 struct platform_driver tvc_connector_driver = { + .probe = tvc_probe, + .remove = __exit_p(tvc_remove), + .driver = { + .name = "connector-analog-tv", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(tvc_connector_driver); + +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); +MODULE_DESCRIPTION("Analog TV Connector driver"); +MODULE_LICENSE("GPL"); |