diff options
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_lut.c')
-rw-r--r-- | drivers/media/platform/vsp1/vsp1_lut.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_lut.c b/drivers/media/platform/vsp1/vsp1_lut.c deleted file mode 100644 index ac6802a325f5..000000000000 --- a/drivers/media/platform/vsp1/vsp1_lut.c +++ /dev/null @@ -1,242 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * vsp1_lut.c -- R-Car VSP1 Look-Up Table - * - * Copyright (C) 2013 Renesas Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include <linux/device.h> -#include <linux/gfp.h> - -#include <media/v4l2-subdev.h> - -#include "vsp1.h" -#include "vsp1_dl.h" -#include "vsp1_lut.h" - -#define LUT_MIN_SIZE 4U -#define LUT_MAX_SIZE 8190U - -#define LUT_SIZE 256 - -/* ----------------------------------------------------------------------------- - * Device Access - */ - -static inline void vsp1_lut_write(struct vsp1_lut *lut, - struct vsp1_dl_body *dlb, u32 reg, u32 data) -{ - vsp1_dl_body_write(dlb, reg, data); -} - -/* ----------------------------------------------------------------------------- - * Controls - */ - -#define V4L2_CID_VSP1_LUT_TABLE (V4L2_CID_USER_BASE | 0x1001) - -static int lut_set_table(struct vsp1_lut *lut, struct v4l2_ctrl *ctrl) -{ - struct vsp1_dl_body *dlb; - unsigned int i; - - dlb = vsp1_dl_body_get(lut->pool); - if (!dlb) - return -ENOMEM; - - for (i = 0; i < LUT_SIZE; ++i) - vsp1_dl_body_write(dlb, VI6_LUT_TABLE + 4 * i, - ctrl->p_new.p_u32[i]); - - spin_lock_irq(&lut->lock); - swap(lut->lut, dlb); - spin_unlock_irq(&lut->lock); - - vsp1_dl_body_put(dlb); - return 0; -} - -static int lut_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct vsp1_lut *lut = - container_of(ctrl->handler, struct vsp1_lut, ctrls); - - switch (ctrl->id) { - case V4L2_CID_VSP1_LUT_TABLE: - lut_set_table(lut, ctrl); - break; - } - - return 0; -} - -static const struct v4l2_ctrl_ops lut_ctrl_ops = { - .s_ctrl = lut_s_ctrl, -}; - -static const struct v4l2_ctrl_config lut_table_control = { - .ops = &lut_ctrl_ops, - .id = V4L2_CID_VSP1_LUT_TABLE, - .name = "Look-Up Table", - .type = V4L2_CTRL_TYPE_U32, - .min = 0x00000000, - .max = 0x00ffffff, - .step = 1, - .def = 0, - .dims = { LUT_SIZE }, -}; - -/* ----------------------------------------------------------------------------- - * V4L2 Subdevice Pad Operations - */ - -static const unsigned int lut_codes[] = { - MEDIA_BUS_FMT_ARGB8888_1X32, - MEDIA_BUS_FMT_AHSV8888_1X32, - MEDIA_BUS_FMT_AYUV8_1X32, -}; - -static int lut_enum_mbus_code(struct v4l2_subdev *subdev, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_mbus_code_enum *code) -{ - return vsp1_subdev_enum_mbus_code(subdev, sd_state, code, lut_codes, - ARRAY_SIZE(lut_codes)); -} - -static int lut_enum_frame_size(struct v4l2_subdev *subdev, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_frame_size_enum *fse) -{ - return vsp1_subdev_enum_frame_size(subdev, sd_state, fse, - LUT_MIN_SIZE, - LUT_MIN_SIZE, LUT_MAX_SIZE, - LUT_MAX_SIZE); -} - -static int lut_set_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *fmt) -{ - return vsp1_subdev_set_pad_format(subdev, sd_state, fmt, lut_codes, - ARRAY_SIZE(lut_codes), - LUT_MIN_SIZE, LUT_MIN_SIZE, - LUT_MAX_SIZE, LUT_MAX_SIZE); -} - -/* ----------------------------------------------------------------------------- - * V4L2 Subdevice Operations - */ - -static const struct v4l2_subdev_pad_ops lut_pad_ops = { - .init_cfg = vsp1_entity_init_cfg, - .enum_mbus_code = lut_enum_mbus_code, - .enum_frame_size = lut_enum_frame_size, - .get_fmt = vsp1_subdev_get_pad_format, - .set_fmt = lut_set_format, -}; - -static const struct v4l2_subdev_ops lut_ops = { - .pad = &lut_pad_ops, -}; - -/* ----------------------------------------------------------------------------- - * VSP1 Entity Operations - */ - -static void lut_configure_stream(struct vsp1_entity *entity, - struct vsp1_pipeline *pipe, - struct vsp1_dl_list *dl, - struct vsp1_dl_body *dlb) -{ - struct vsp1_lut *lut = to_lut(&entity->subdev); - - vsp1_lut_write(lut, dlb, VI6_LUT_CTRL, VI6_LUT_CTRL_EN); -} - -static void lut_configure_frame(struct vsp1_entity *entity, - struct vsp1_pipeline *pipe, - struct vsp1_dl_list *dl, - struct vsp1_dl_body *dlb) -{ - struct vsp1_lut *lut = to_lut(&entity->subdev); - struct vsp1_dl_body *lut_dlb; - unsigned long flags; - - spin_lock_irqsave(&lut->lock, flags); - lut_dlb = lut->lut; - lut->lut = NULL; - spin_unlock_irqrestore(&lut->lock, flags); - - if (lut_dlb) { - vsp1_dl_list_add_body(dl, lut_dlb); - - /* Release our local reference. */ - vsp1_dl_body_put(lut_dlb); - } -} - -static void lut_destroy(struct vsp1_entity *entity) -{ - struct vsp1_lut *lut = to_lut(&entity->subdev); - - vsp1_dl_body_pool_destroy(lut->pool); -} - -static const struct vsp1_entity_operations lut_entity_ops = { - .configure_stream = lut_configure_stream, - .configure_frame = lut_configure_frame, - .destroy = lut_destroy, -}; - -/* ----------------------------------------------------------------------------- - * Initialization and Cleanup - */ - -struct vsp1_lut *vsp1_lut_create(struct vsp1_device *vsp1) -{ - struct vsp1_lut *lut; - int ret; - - lut = devm_kzalloc(vsp1->dev, sizeof(*lut), GFP_KERNEL); - if (lut == NULL) - return ERR_PTR(-ENOMEM); - - spin_lock_init(&lut->lock); - - lut->entity.ops = &lut_entity_ops; - lut->entity.type = VSP1_ENTITY_LUT; - - ret = vsp1_entity_init(vsp1, &lut->entity, "lut", 2, &lut_ops, - MEDIA_ENT_F_PROC_VIDEO_LUT); - if (ret < 0) - return ERR_PTR(ret); - - /* - * Pre-allocate a body pool, with 3 bodies allowing a userspace update - * before the hardware has committed a previous set of tables, handling - * both the queued and pending dl entries. - */ - lut->pool = vsp1_dl_body_pool_create(vsp1, 3, LUT_SIZE, 0); - if (!lut->pool) - return ERR_PTR(-ENOMEM); - - /* Initialize the control handler. */ - v4l2_ctrl_handler_init(&lut->ctrls, 1); - v4l2_ctrl_new_custom(&lut->ctrls, &lut_table_control, NULL); - - lut->entity.subdev.ctrl_handler = &lut->ctrls; - - if (lut->ctrls.error) { - dev_err(vsp1->dev, "lut: failed to initialize controls\n"); - ret = lut->ctrls.error; - vsp1_entity_destroy(&lut->entity); - return ERR_PTR(ret); - } - - v4l2_ctrl_handler_setup(&lut->ctrls); - - return lut; -} |