Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 225 insertions, 0 deletions

diff --git a/drivers/media/platform/exynos4-is/fimc-lite.h b/drivers/media/platform/exynos4-is/fimc-lite.h
new file mode 100644
index 000000000..3e238b8c8
--- /dev/null
+++ b/drivers/media/platform/exynos4-is/fimc-lite.h
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * 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 FIMC_LITE_H_
+#define FIMC_LITE_H_
+
+#include <linux/sizes.h>
+#include <linux/io.h>
+#include <linux/irqreturn.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+#include <media/media-entity.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-mediabus.h>
+#include <media/drv-intf/exynos-fimc.h>
+
+#define FIMC_LITE_DRV_NAME	"exynos-fimc-lite"
+#define FLITE_CLK_NAME		"flite"
+#define FIMC_LITE_MAX_DEVS	3
+#define FLITE_REQ_BUFS_MIN	2
+#define FLITE_DEFAULT_WIDTH	640
+#define FLITE_DEFAULT_HEIGHT	480
+
+/* Bit index definitions for struct fimc_lite::state */
+enum {
+	ST_FLITE_LPM,
+	ST_FLITE_PENDING,
+	ST_FLITE_RUN,
+	ST_FLITE_STREAM,
+	ST_FLITE_SUSPENDED,
+	ST_FLITE_OFF,
+	ST_FLITE_IN_USE,
+	ST_FLITE_CONFIG,
+	ST_SENSOR_STREAM,
+};
+
+#define FLITE_SD_PAD_SINK	0
+#define FLITE_SD_PAD_SOURCE_DMA	1
+#define FLITE_SD_PAD_SOURCE_ISP	2
+#define FLITE_SD_PADS_NUM	3
+
+/**
+ * struct flite_drvdata - FIMC-LITE IP variant data structure
+ * @max_width: maximum camera interface input width in pixels
+ * @max_height: maximum camera interface input height in pixels
+ * @out_width_align: minimum output width alignment in pixels
+ * @win_hor_offs_align: minimum camera interface crop window horizontal
+ *			offset alignment in pixels
+ * @out_hor_offs_align: minimum output DMA compose rectangle horizontal
+ *			offset alignment in pixels
+ * @max_dma_bufs: number of output DMA buffer start address registers
+ * @num_instances: total number of FIMC-LITE IP instances available
+ */
+struct flite_drvdata {
+	unsigned short max_width;
+	unsigned short max_height;
+	unsigned short out_width_align;
+	unsigned short win_hor_offs_align;
+	unsigned short out_hor_offs_align;
+	unsigned short max_dma_bufs;
+	unsigned short num_instances;
+};
+
+struct fimc_lite_events {
+	unsigned int data_overflow;
+};
+
+#define FLITE_MAX_PLANES	1
+
+/**
+ * struct flite_frame - source/target frame properties
+ * @f_width: full pixel width
+ * @f_height: full pixel height
+ * @rect: crop/composition rectangle
+ * @fmt: pointer to pixel format description data structure
+ */
+struct flite_frame {
+	u16 f_width;
+	u16 f_height;
+	struct v4l2_rect rect;
+	const struct fimc_fmt *fmt;
+};
+
+/**
+ * struct flite_buffer - video buffer structure
+ * @vb:    vb2 buffer
+ * @list:  list head for the buffers queue
+ * @paddr: DMA buffer start address
+ * @index: DMA start address register's index
+ */
+struct flite_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head list;
+	dma_addr_t paddr;
+	unsigned short index;
+};
+
+/**
+ * struct fimc_lite - fimc lite structure
+ * @pdev: pointer to FIMC-LITE platform device
+ * @dd: SoC specific driver data structure
+ * @ve: exynos video device entity structure
+ * @v4l2_dev: pointer to top the level v4l2_device
+ * @fh: v4l2 file handle
+ * @subdev: FIMC-LITE subdev
+ * @vd_pad: media (sink) pad for the capture video node
+ * @subdev_pads: the subdev media pads
+ * @sensor: sensor subdev attached to FIMC-LITE directly or through MIPI-CSIS
+ * @ctrl_handler: v4l2 control handler
+ * @test_pattern: test pattern controls
+ * @index: FIMC-LITE platform device index
+ * @pipeline: video capture pipeline data structure
+ * @pipeline_ops: media pipeline ops for the video node driver
+ * @slock: spinlock protecting this data structure and the hw registers
+ * @lock: mutex serializing video device and the subdev operations
+ * @clock: FIMC-LITE gate clock
+ * @regs: memory mapped io registers
+ * @irq_queue: interrupt handler waitqueue
+ * @payload: image size in bytes (w x h x bpp)
+ * @inp_frame: camera input frame structure
+ * @out_frame: DMA output frame structure
+ * @out_path: output data path (DMA or FIFO)
+ * @source_subdev_grp_id: source subdev group id
+ * @state: driver state flags
+ * @pending_buf_q: pending buffers queue head
+ * @active_buf_q: the queue head of buffers scheduled in hardware
+ * @vb_queue: vb2 buffers queue
+ * @buf_index: helps to keep track of the DMA start address register index
+ * @active_buf_count: number of video buffers scheduled in hardware
+ * @frame_count: the captured frames counter
+ * @reqbufs_count: the number of buffers requested with REQBUFS ioctl
+ */
+struct fimc_lite {
+	struct platform_device	*pdev;
+	struct flite_drvdata	*dd;
+	struct exynos_video_entity ve;
+	struct v4l2_device	*v4l2_dev;
+	struct v4l2_fh		fh;
+	struct v4l2_subdev	subdev;
+	struct media_pad	vd_pad;
+	struct media_pad	subdev_pads[FLITE_SD_PADS_NUM];
+	struct v4l2_subdev	*sensor;
+	struct v4l2_ctrl_handler ctrl_handler;
+	struct v4l2_ctrl	*test_pattern;
+	int			index;
+
+	struct mutex		lock;
+	spinlock_t		slock;
+
+	struct clk		*clock;
+	void __iomem		*regs;
+	wait_queue_head_t	irq_queue;
+
+	unsigned long		payload[FLITE_MAX_PLANES];
+	struct flite_frame	inp_frame;
+	struct flite_frame	out_frame;
+	atomic_t		out_path;
+	unsigned int		source_subdev_grp_id;
+
+	unsigned long		state;
+	struct list_head	pending_buf_q;
+	struct list_head	active_buf_q;
+	struct vb2_queue	vb_queue;
+	unsigned short		buf_index;
+	unsigned int		frame_count;
+	unsigned int		reqbufs_count;
+
+	struct fimc_lite_events	events;
+	bool			streaming;
+};
+
+static inline bool fimc_lite_active(struct fimc_lite *fimc)
+{
+	unsigned long flags;
+	bool ret;
+
+	spin_lock_irqsave(&fimc->slock, flags);
+	ret = fimc->state & (1 << ST_FLITE_RUN) ||
+		fimc->state & (1 << ST_FLITE_PENDING);
+	spin_unlock_irqrestore(&fimc->slock, flags);
+	return ret;
+}
+
+static inline void fimc_lite_active_queue_add(struct fimc_lite *dev,
+					 struct flite_buffer *buf)
+{
+	list_add_tail(&buf->list, &dev->active_buf_q);
+}
+
+static inline struct flite_buffer *fimc_lite_active_queue_pop(
+					struct fimc_lite *dev)
+{
+	struct flite_buffer *buf = list_entry(dev->active_buf_q.next,
+					      struct flite_buffer, list);
+	list_del(&buf->list);
+	return buf;
+}
+
+static inline void fimc_lite_pending_queue_add(struct fimc_lite *dev,
+					struct flite_buffer *buf)
+{
+	list_add_tail(&buf->list, &dev->pending_buf_q);
+}
+
+static inline struct flite_buffer *fimc_lite_pending_queue_pop(
+					struct fimc_lite *dev)
+{
+	struct flite_buffer *buf = list_entry(dev->pending_buf_q.next,
+					      struct flite_buffer, list);
+	list_del(&buf->list);
+	return buf;
+}
+
+#endif /* FIMC_LITE_H_ */