diff options
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_lif.c')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_lif.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_lif.c b/drivers/media/platform/vsp1/vsp1_lif.c deleted file mode 100644 index 702487f895b3..000000000000 --- a/drivers/media/platform/vsp1/vsp1_lif.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * vsp1_lif.c -- R-Car VSP1 LCD Controller Interface - * - * Copyright (C) 2013-2014 Renesas Electronics Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/device.h> -#include <linux/gfp.h> - -#include <media/v4l2-subdev.h> - -#include "vsp1.h" -#include "vsp1_dl.h" -#include "vsp1_lif.h" - -#define LIF_MIN_SIZE 2U -#define LIF_MAX_SIZE 8190U - -/* ----------------------------------------------------------------------------- - * Device Access - */ - -static inline void vsp1_lif_write(struct vsp1_lif *lif, struct vsp1_dl_list *dl, - u32 reg, u32 data) -{ - vsp1_dl_list_write(dl, reg, data); -} - -/* ----------------------------------------------------------------------------- - * V4L2 Subdevice Operations - */ - -static int lif_enum_mbus_code(struct v4l2_subdev *subdev, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - static const unsigned int codes[] = { - MEDIA_BUS_FMT_ARGB8888_1X32, - MEDIA_BUS_FMT_AYUV8_1X32, - }; - - return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes, - ARRAY_SIZE(codes)); -} - -static int lif_enum_frame_size(struct v4l2_subdev *subdev, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - return vsp1_subdev_enum_frame_size(subdev, cfg, fse, LIF_MIN_SIZE, - LIF_MIN_SIZE, LIF_MAX_SIZE, - LIF_MAX_SIZE); -} - -static int lif_set_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vsp1_lif *lif = to_lif(subdev); - struct v4l2_subdev_pad_config *config; - struct v4l2_mbus_framefmt *format; - int ret = 0; - - mutex_lock(&lif->entity.lock); - - config = vsp1_entity_get_pad_config(&lif->entity, cfg, fmt->which); - if (!config) { - ret = -EINVAL; - goto done; - } - - /* Default to YUV if the requested format is not supported. */ - if (fmt->format.code != MEDIA_BUS_FMT_ARGB8888_1X32 && - fmt->format.code != MEDIA_BUS_FMT_AYUV8_1X32) - fmt->format.code = MEDIA_BUS_FMT_AYUV8_1X32; - - format = vsp1_entity_get_pad_format(&lif->entity, config, fmt->pad); - - if (fmt->pad == LIF_PAD_SOURCE) { - /* - * The LIF source format is always identical to its sink - * format. - */ - fmt->format = *format; - goto done; - } - - format->code = fmt->format.code; - format->width = clamp_t(unsigned int, fmt->format.width, - LIF_MIN_SIZE, LIF_MAX_SIZE); - format->height = clamp_t(unsigned int, fmt->format.height, - LIF_MIN_SIZE, LIF_MAX_SIZE); - format->field = V4L2_FIELD_NONE; - format->colorspace = V4L2_COLORSPACE_SRGB; - - fmt->format = *format; - - /* Propagate the format to the source pad. */ - format = vsp1_entity_get_pad_format(&lif->entity, config, - LIF_PAD_SOURCE); - *format = fmt->format; - -done: - mutex_unlock(&lif->entity.lock); - return ret; -} - -static const struct v4l2_subdev_pad_ops lif_pad_ops = { - .init_cfg = vsp1_entity_init_cfg, - .enum_mbus_code = lif_enum_mbus_code, - .enum_frame_size = lif_enum_frame_size, - .get_fmt = vsp1_subdev_get_pad_format, - .set_fmt = lif_set_format, -}; - -static const struct v4l2_subdev_ops lif_ops = { - .pad = &lif_pad_ops, -}; - -/* ----------------------------------------------------------------------------- - * VSP1 Entity Operations - */ - -static void lif_configure(struct vsp1_entity *entity, - struct vsp1_pipeline *pipe, - struct vsp1_dl_list *dl, - enum vsp1_entity_params params) -{ - const struct v4l2_mbus_framefmt *format; - struct vsp1_lif *lif = to_lif(&entity->subdev); - unsigned int hbth = 1300; - unsigned int obth = 400; - unsigned int lbth = 200; - - if (params != VSP1_ENTITY_PARAMS_INIT) - return; - - format = vsp1_entity_get_pad_format(&lif->entity, lif->entity.config, - LIF_PAD_SOURCE); - - obth = min(obth, (format->width + 1) / 2 * format->height - 4); - - vsp1_lif_write(lif, dl, VI6_LIF_CSBTH, - (hbth << VI6_LIF_CSBTH_HBTH_SHIFT) | - (lbth << VI6_LIF_CSBTH_LBTH_SHIFT)); - - vsp1_lif_write(lif, dl, VI6_LIF_CTRL, - (obth << VI6_LIF_CTRL_OBTH_SHIFT) | - (format->code == 0 ? VI6_LIF_CTRL_CFMT : 0) | - VI6_LIF_CTRL_REQSEL | VI6_LIF_CTRL_LIF_EN); -} - -static const struct vsp1_entity_operations lif_entity_ops = { - .configure = lif_configure, -}; - -/* ----------------------------------------------------------------------------- - * Initialization and Cleanup - */ - -struct vsp1_lif *vsp1_lif_create(struct vsp1_device *vsp1) -{ - struct vsp1_lif *lif; - int ret; - - lif = devm_kzalloc(vsp1->dev, sizeof(*lif), GFP_KERNEL); - if (lif == NULL) - return ERR_PTR(-ENOMEM); - - lif->entity.ops = &lif_entity_ops; - lif->entity.type = VSP1_ENTITY_LIF; - - /* - * The LIF is never exposed to userspace, but media entity registration - * requires a function to be set. Use PROC_VIDEO_PIXEL_FORMATTER just to - * avoid triggering a WARN_ON(), the value won't be seen anywhere. - */ - ret = vsp1_entity_init(vsp1, &lif->entity, "lif", 2, &lif_ops, - MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER); - if (ret < 0) - return ERR_PTR(ret); - - return lif; -} |