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Diffstat (limited to 'include/media/exynos_mc.h')
| -rw-r--r-- | include/media/exynos_mc.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/include/media/exynos_mc.h b/include/media/exynos_mc.h new file mode 100644 index 0000000..a96b038 --- /dev/null +++ b/include/media/exynos_mc.h @@ -0,0 +1,161 @@ +/* linux/inclue/media/exynos_mc.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * header file for exynos media device driver + * + * 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. + */ + +#ifndef GSC_MDEVICE_H_ +#define GSC_MDEVICE_H_ + +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> +#include <linux/device.h> +#include <media/media-device.h> +#include <media/media-entity.h> +#include <media/v4l2-device.h> +#include <media/v4l2-subdev.h> + +#define err(fmt, args...) \ + printk(KERN_ERR "%s:%d: " fmt "\n", __func__, __LINE__, ##args) + +#define MDEV_MODULE_NAME "exynos-mdev" +#define MAX_GSC_SUBDEV 4 +#define MDEV_MAX_NUM 3 + +#define GSC_OUT_PAD_SINK 0 +#define GSC_OUT_PAD_SOURCE 1 + +#define GSC_CAP_PAD_SINK 0 +#define GSC_CAP_PAD_SOURCE 1 + +#define FLITE_PAD_SINK 0 +#define FLITE_PAD_SOURCE_PREV 1 +#define FLITE_PAD_SOURCE_CAMCORD 2 +#define FLITE_PAD_SOURCE_MEM 3 +#define FLITE_PADS_NUM 4 + +#define CSIS_PAD_SINK 0 +#define CSIS_PAD_SOURCE 1 +#define CSIS_PADS_NUM 2 + +#define MAX_CAMIF_CLIENTS 2 + +#define MXR_SUBDEV_NAME "s5p-mixer" + +#define GSC_MODULE_NAME "exynos-gsc" +#define GSC_SUBDEV_NAME "exynos-gsc-sd" +#define FIMD_MODULE_NAME "s5p-fimd1" +#define FIMD_ENTITY_NAME "s3c-fb-window" +#define FLITE_MODULE_NAME "exynos-fimc-lite" +#define CSIS_MODULE_NAME "s5p-mipi-csis" + +#define GSC_CAP_GRP_ID (1 << 0) +#define FLITE_GRP_ID (1 << 1) +#define CSIS_GRP_ID (1 << 2) +#define SENSOR_GRP_ID (1 << 3) +#define FIMD_GRP_ID (1 << 4) + +#define SENSOR_MAX_ENTITIES MAX_CAMIF_CLIENTS +#define FLITE_MAX_ENTITIES 2 +#define CSIS_MAX_ENTITIES 2 + +enum mdev_node { + MDEV_OUTPUT, + MDEV_CAPTURE, + MDEV_ISP, +}; + +enum mxr_data_from { + FROM_GSC_SD, + FROM_MXR_VD, +}; + +struct exynos_media_ops { + int (*power_off)(struct v4l2_subdev *sd); +}; + +struct exynos_entity_data { + const struct exynos_media_ops *media_ops; + enum mxr_data_from mxr_data_from; +}; + +/** + * struct exynos_md - Exynos media device information + * @media_dev: top level media device + * @v4l2_dev: top level v4l2_device holding up the subdevs + * @pdev: platform device this media device is hooked up into + * @slock: spinlock protecting @sensor array + * @id: media device IDs + * @gsc_sd: each pointer of g-scaler's subdev array + */ +struct exynos_md { + struct media_device media_dev; + struct v4l2_device v4l2_dev; + struct platform_device *pdev; + struct v4l2_subdev *gsc_sd[MAX_GSC_SUBDEV]; + struct v4l2_subdev *gsc_cap_sd[MAX_GSC_SUBDEV]; + struct v4l2_subdev *csis_sd[CSIS_MAX_ENTITIES]; + struct v4l2_subdev *flite_sd[FLITE_MAX_ENTITIES]; + struct v4l2_subdev *sensor_sd[SENSOR_MAX_ENTITIES]; + u16 id; + bool is_flite_on; + spinlock_t slock; +}; + +static int dummy_callback(struct device *dev, void *md) +{ + /* non-zero return stops iteration */ + return -1; +} + +static inline void *module_name_to_driver_data(char *module_name) +{ + struct device_driver *drv; + struct device *dev; + void *driver_data; + + drv = driver_find(module_name, &platform_bus_type); + if (drv) { + dev = driver_find_device(drv, NULL, NULL, dummy_callback); + driver_data = dev_get_drvdata(dev); + put_driver(drv); + return driver_data; + } else + return NULL; +} + +/* print entity information for debug*/ +static inline void entity_info_print(struct media_entity *me, struct device *dev) +{ + u16 num_pads = me->num_pads; + u16 num_links = me->num_links; + int i; + + dev_dbg(dev, "entity name : %s\n", me->name); + dev_dbg(dev, "number of pads = %d\n", num_pads); + for (i = 0; i < num_pads; ++i) { + dev_dbg(dev, "pad[%d] flag : %s\n", i, + (me->pads[i].flags == 1) ? "SINK" : "SOURCE"); + } + + dev_dbg(dev, "number of links = %d\n", num_links); + + for (i = 0; i < num_links; ++i) { + dev_dbg(dev, "link[%d] info = ", i); + dev_dbg(dev, "%s : %s[%d] ---> %s : %s[%d]\n", + me->links[i].source->entity->name, + me->links[i].source->flags == 1 ? "SINK" : "SOURCE", + me->links[i].source->index, + me->links[i].sink->entity->name, + me->links[i].sink->flags == 1 ? "SINK" : "SOURCE", + me->links[i].sink->index); + } +} +#endif |