media: platform: rename exynos-gsc/ to samsung/exynos-gsc/

As the end goal is to have platform drivers split by vendor,
rename exynos-gsc/ to samsung/exynos-gsc/.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

1 files changed, 0 insertions, 521 deletions

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h b/drivers/media/platform/exynos-gsc/gsc-core.h
deleted file mode 100644
index e894e85e84a4..000000000000
--- a/drivers/media/platform/exynos-gsc/gsc-core.h
+++ /dev/null
@@ -1,521 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2011 - 2012 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * header file for Samsung EXYNOS5 SoC series G-Scaler driver
-
- */
-
-#ifndef GSC_CORE_H_
-#define GSC_CORE_H_
-
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-#include <linux/videodev2.h>
-#include <linux/io.h>
-#include <linux/pm_runtime.h>
-#include <media/videobuf2-v4l2.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-mem2mem.h>
-#include <media/v4l2-mediabus.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "gsc-regs.h"
-
-#define CONFIG_VB2_GSC_DMA_CONTIG	1
-#define GSC_MODULE_NAME			"exynos-gsc"
-
-#define GSC_SHUTDOWN_TIMEOUT		((100*HZ)/1000)
-#define GSC_MAX_DEVS			4
-#define GSC_MAX_CLOCKS			4
-#define GSC_M2M_BUF_NUM			0
-#define GSC_MAX_CTRL_NUM		10
-#define GSC_SC_ALIGN_4			4
-#define GSC_SC_ALIGN_2			2
-#define DEFAULT_CSC_EQ			1
-#define DEFAULT_CSC_RANGE		1
-
-#define GSC_PARAMS			(1 << 0)
-#define GSC_SRC_FMT			(1 << 1)
-#define GSC_DST_FMT			(1 << 2)
-#define GSC_CTX_M2M			(1 << 3)
-#define GSC_CTX_STOP_REQ		(1 << 6)
-#define	GSC_CTX_ABORT			(1 << 7)
-
-enum gsc_dev_flags {
-	/* for m2m node */
-	ST_M2M_OPEN,
-	ST_M2M_RUN,
-	ST_M2M_PEND,
-	ST_M2M_SUSPENDED,
-	ST_M2M_SUSPENDING,
-};
-
-enum gsc_irq {
-	GSC_IRQ_DONE,
-	GSC_IRQ_OVERRUN
-};
-
-/**
- * enum gsc_datapath - the path of data used for G-Scaler
- * @GSC_CAMERA: from camera
- * @GSC_DMA: from/to DMA
- * @GSC_WRITEBACK: from FIMD
- */
-enum gsc_datapath {
-	GSC_CAMERA = 0x1,
-	GSC_DMA,
-	GSC_WRITEBACK,
-};
-
-enum gsc_color_fmt {
-	GSC_RGB = 0x1,
-	GSC_YUV420 = 0x2,
-	GSC_YUV422 = 0x4,
-	GSC_YUV444 = 0x8,
-};
-
-enum gsc_yuv_fmt {
-	GSC_LSB_Y = 0x10,
-	GSC_LSB_C,
-	GSC_CBCR = 0x20,
-	GSC_CRCB,
-};
-
-#define fh_to_ctx(__fh) container_of(__fh, struct gsc_ctx, fh)
-#define is_rgb(x) (!!((x) & 0x1))
-#define is_yuv420(x) (!!((x) & 0x2))
-#define is_yuv422(x) (!!((x) & 0x4))
-
-#define gsc_m2m_active(dev)	test_bit(ST_M2M_RUN, &(dev)->state)
-#define gsc_m2m_pending(dev)	test_bit(ST_M2M_PEND, &(dev)->state)
-#define gsc_m2m_opened(dev)	test_bit(ST_M2M_OPEN, &(dev)->state)
-
-#define ctrl_to_ctx(__ctrl) \
-	container_of((__ctrl)->handler, struct gsc_ctx, ctrl_handler)
-/**
- * struct gsc_fmt - the driver's internal color format data
- * @mbus_code: Media Bus pixel code, -1 if not applicable
- * @pixelformat: the fourcc code for this format, 0 if not applicable
- * @color: color encoding
- * @yorder: Y/C order
- * @corder: Chrominance order control
- * @num_planes: number of physically non-contiguous data planes
- * @num_comp: number of physically contiguous data planes
- * @depth: per plane driver's private 'number of bits per pixel'
- * @flags: flags indicating which operation mode format applies to
- */
-struct gsc_fmt {
-	u32 mbus_code;
-	u32	pixelformat;
-	u32	color;
-	u32	yorder;
-	u32	corder;
-	u16	num_planes;
-	u16	num_comp;
-	u8	depth[VIDEO_MAX_PLANES];
-	u32	flags;
-};
-
-/**
- * struct gsc_input_buf - the driver's video buffer
- * @vb:	videobuf2 buffer
- * @list : linked list structure for buffer queue
- * @idx : index of G-Scaler input buffer
- */
-struct gsc_input_buf {
-	struct vb2_v4l2_buffer vb;
-	struct list_head	list;
-	int			idx;
-};
-
-/**
- * struct gsc_addr - the G-Scaler physical address set
- * @y:	 luminance plane address
- * @cb:	 Cb plane address
- * @cr:	 Cr plane address
- */
-struct gsc_addr {
-	dma_addr_t y;
-	dma_addr_t cb;
-	dma_addr_t cr;
-};
-
-/* struct gsc_ctrls - the G-Scaler control set
- * @rotate: rotation degree
- * @hflip: horizontal flip
- * @vflip: vertical flip
- * @global_alpha: the alpha value of current frame
- */
-struct gsc_ctrls {
-	struct v4l2_ctrl *rotate;
-	struct v4l2_ctrl *hflip;
-	struct v4l2_ctrl *vflip;
-	struct v4l2_ctrl *global_alpha;
-};
-
-/**
- * struct gsc_scaler - the configuration data for G-Scaler inetrnal scaler
- * @pre_shfactor:	pre sclaer shift factor
- * @pre_hratio:		horizontal ratio of the prescaler
- * @pre_vratio:		vertical ratio of the prescaler
- * @main_hratio:	the main scaler's horizontal ratio
- * @main_vratio:	the main scaler's vertical ratio
- */
-struct gsc_scaler {
-	u32 pre_shfactor;
-	u32 pre_hratio;
-	u32 pre_vratio;
-	u32 main_hratio;
-	u32 main_vratio;
-};
-
-struct gsc_dev;
-
-struct gsc_ctx;
-
-/**
- * struct gsc_frame - source/target frame properties
- * @f_width:	SRC : SRCIMG_WIDTH, DST : OUTPUTDMA_WHOLE_IMG_WIDTH
- * @f_height:	SRC : SRCIMG_HEIGHT, DST : OUTPUTDMA_WHOLE_IMG_HEIGHT
- * @crop:	cropped(source)/scaled(destination) size
- * @payload:	image size in bytes (w x h x bpp)
- * @addr:	image frame buffer physical addresses
- * @fmt:	G-Scaler color format pointer
- * @colorspace: value indicating v4l2_colorspace
- * @alpha:	frame's alpha value
- */
-struct gsc_frame {
-	u32 f_width;
-	u32 f_height;
-	struct v4l2_rect crop;
-	unsigned long payload[VIDEO_MAX_PLANES];
-	struct gsc_addr	addr;
-	const struct gsc_fmt *fmt;
-	u32 colorspace;
-	u8 alpha;
-};
-
-/**
- * struct gsc_m2m_device - v4l2 memory-to-memory device data
- * @vfd: the video device node for v4l2 m2m mode
- * @m2m_dev: v4l2 memory-to-memory device data
- * @ctx: hardware context data
- * @refcnt: the reference counter
- */
-struct gsc_m2m_device {
-	struct video_device	*vfd;
-	struct v4l2_m2m_dev	*m2m_dev;
-	struct gsc_ctx		*ctx;
-	int			refcnt;
-};
-
-/**
- *  struct gsc_pix_max - image pixel size limits in various IP configurations
- *
- *  @org_scaler_bypass_w: max pixel width when the scaler is disabled
- *  @org_scaler_bypass_h: max pixel height when the scaler is disabled
- *  @org_scaler_input_w: max pixel width when the scaler is enabled
- *  @org_scaler_input_h: max pixel height when the scaler is enabled
- *  @real_rot_dis_w: max pixel src cropped height with the rotator is off
- *  @real_rot_dis_h: max pixel src croppped width with the rotator is off
- *  @real_rot_en_w: max pixel src cropped width with the rotator is on
- *  @real_rot_en_h: max pixel src cropped height with the rotator is on
- *  @target_rot_dis_w: max pixel dst scaled width with the rotator is off
- *  @target_rot_dis_h: max pixel dst scaled height with the rotator is off
- *  @target_rot_en_w: max pixel dst scaled width with the rotator is on
- *  @target_rot_en_h: max pixel dst scaled height with the rotator is on
- */
-struct gsc_pix_max {
-	u16 org_scaler_bypass_w;
-	u16 org_scaler_bypass_h;
-	u16 org_scaler_input_w;
-	u16 org_scaler_input_h;
-	u16 real_rot_dis_w;
-	u16 real_rot_dis_h;
-	u16 real_rot_en_w;
-	u16 real_rot_en_h;
-	u16 target_rot_dis_w;
-	u16 target_rot_dis_h;
-	u16 target_rot_en_w;
-	u16 target_rot_en_h;
-};
-
-/**
- *  struct gsc_pix_min - image pixel size limits in various IP configurations
- *
- *  @org_w: minimum source pixel width
- *  @org_h: minimum source pixel height
- *  @real_w: minimum input crop pixel width
- *  @real_h: minimum input crop pixel height
- *  @target_rot_dis_w: minimum output scaled pixel height when rotator is off
- *  @target_rot_dis_h: minimum output scaled pixel height when rotator is off
- *  @target_rot_en_w: minimum output scaled pixel height when rotator is on
- *  @target_rot_en_h: minimum output scaled pixel height when rotator is on
- */
-struct gsc_pix_min {
-	u16 org_w;
-	u16 org_h;
-	u16 real_w;
-	u16 real_h;
-	u16 target_rot_dis_w;
-	u16 target_rot_dis_h;
-	u16 target_rot_en_w;
-	u16 target_rot_en_h;
-};
-
-struct gsc_pix_align {
-	u16 org_h;
-	u16 org_w;
-	u16 offset_h;
-	u16 real_w;
-	u16 real_h;
-	u16 target_w;
-	u16 target_h;
-};
-
-/*
- * struct gsc_variant - G-Scaler variant information
- */
-struct gsc_variant {
-	struct gsc_pix_max *pix_max;
-	struct gsc_pix_min *pix_min;
-	struct gsc_pix_align *pix_align;
-	u16		in_buf_cnt;
-	u16		out_buf_cnt;
-	u16		sc_up_max;
-	u16		sc_down_max;
-	u16		poly_sc_down_max;
-	u16		pre_sc_down_max;
-	u16		local_sc_down;
-};
-
-/**
- * struct gsc_driverdata - per device type driver data for init time.
- *
- * @variant: the variant information for this driver.
- * @num_entities: the number of g-scalers
- * @clk_names: clock names
- * @num_clocks: the number of clocks in @clk_names
- * @num_entities: the number of g-scalers
- */
-struct gsc_driverdata {
-	struct gsc_variant *variant[GSC_MAX_DEVS];
-	const char	*clk_names[GSC_MAX_CLOCKS];
-	int		num_clocks;
-	int		num_entities;
-};
-
-/**
- * struct gsc_dev - abstraction for G-Scaler entity
- * @slock:	the spinlock protecting this data structure
- * @lock:	the mutex protecting this data structure
- * @pdev:	pointer to the G-Scaler platform device
- * @variant:	the IP variant information
- * @id:		G-Scaler device index (0..GSC_MAX_DEVS)
- * @num_clocks:	number of clocks required for G-Scaler operation
- * @clock:	clocks required for G-Scaler operation
- * @regs:	the mapped hardware registers
- * @irq_queue:	interrupt handler waitqueue
- * @m2m:	memory-to-memory V4L2 device information
- * @state:	flags used to synchronize m2m and capture mode operation
- * @vdev:	video device for G-Scaler instance
- * @v4l2_dev:	v4l2_device for G-Scaler instance
- */
-struct gsc_dev {
-	spinlock_t			slock;
-	struct mutex			lock;
-	struct platform_device		*pdev;
-	struct gsc_variant		*variant;
-	u16				id;
-	int				num_clocks;
-	struct clk			*clock[GSC_MAX_CLOCKS];
-	void __iomem			*regs;
-	wait_queue_head_t		irq_queue;
-	struct gsc_m2m_device		m2m;
-	unsigned long			state;
-	struct video_device		vdev;
-	struct v4l2_device		v4l2_dev;
-};
-
-/**
- * struct gsc_ctx - the device context data
- * @s_frame:		source frame properties
- * @d_frame:		destination frame properties
- * @in_path:		input mode (DMA or camera)
- * @out_path:		output mode (DMA or FIFO)
- * @scaler:		image scaler properties
- * @flags:		additional flags for image conversion
- * @state:		flags to keep track of user configuration
- * @rotation:		rotation
- * @hflip:		horizontal flip
- * @vflip:		vertical flip
- * @gsc_dev:		the G-Scaler device this context applies to
- * @m2m_ctx:		memory-to-memory device context
- * @fh:                 v4l2 file handle
- * @ctrl_handler:       v4l2 controls handler
- * @gsc_ctrls:		G-Scaler control set
- * @ctrls_rdy:          true if the control handler is initialized
- * @out_colorspace:     the colorspace of the OUTPUT queue
- */
-struct gsc_ctx {
-	struct gsc_frame	s_frame;
-	struct gsc_frame	d_frame;
-	enum gsc_datapath	in_path;
-	enum gsc_datapath	out_path;
-	struct gsc_scaler	scaler;
-	u32			flags;
-	u32			state;
-	int			rotation;
-	unsigned int		hflip:1;
-	unsigned int		vflip:1;
-	struct gsc_dev		*gsc_dev;
-	struct v4l2_m2m_ctx	*m2m_ctx;
-	struct v4l2_fh		fh;
-	struct v4l2_ctrl_handler ctrl_handler;
-	struct gsc_ctrls	gsc_ctrls;
-	bool			ctrls_rdy;
-	enum v4l2_colorspace out_colorspace;
-};
-
-void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame *frm);
-int gsc_register_m2m_device(struct gsc_dev *gsc);
-void gsc_unregister_m2m_device(struct gsc_dev *gsc);
-void gsc_m2m_job_finish(struct gsc_ctx *ctx, int vb_state);
-
-u32 get_plane_size(struct gsc_frame *fr, unsigned int plane);
-const struct gsc_fmt *get_format(int index);
-const struct gsc_fmt *find_fmt(u32 *pixelformat, u32 *mbus_code, u32 index);
-int gsc_enum_fmt(struct v4l2_fmtdesc *f);
-int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f);
-void gsc_set_frame_size(struct gsc_frame *frame, int width, int height);
-int gsc_g_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f);
-void gsc_check_crop_change(u32 tmp_w, u32 tmp_h, u32 *w, u32 *h);
-int gsc_try_selection(struct gsc_ctx *ctx, struct v4l2_selection *s);
-int gsc_cal_prescaler_ratio(struct gsc_variant *var, u32 src, u32 dst,
-							u32 *ratio);
-void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *sh);
-void gsc_check_src_scale_info(struct gsc_variant *var,
-				struct gsc_frame *s_frame,
-				u32 *wratio, u32 tx, u32 ty, u32 *hratio);
-int gsc_check_scaler_ratio(struct gsc_variant *var, int sw, int sh, int dw,
-			   int dh, int rot, int out_path);
-int gsc_set_scaler_info(struct gsc_ctx *ctx);
-int gsc_ctrls_create(struct gsc_ctx *ctx);
-void gsc_ctrls_delete(struct gsc_ctx *ctx);
-int gsc_prepare_addr(struct gsc_ctx *ctx, struct vb2_buffer *vb,
-		     struct gsc_frame *frame, struct gsc_addr *addr);
-
-static inline void gsc_ctx_state_lock_set(u32 state, struct gsc_ctx *ctx)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ctx->gsc_dev->slock, flags);
-	ctx->state |= state;
-	spin_unlock_irqrestore(&ctx->gsc_dev->slock, flags);
-}
-
-static inline void gsc_ctx_state_lock_clear(u32 state, struct gsc_ctx *ctx)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ctx->gsc_dev->slock, flags);
-	ctx->state &= ~state;
-	spin_unlock_irqrestore(&ctx->gsc_dev->slock, flags);
-}
-
-static inline int is_tiled(const struct gsc_fmt *fmt)
-{
-	return fmt->pixelformat == V4L2_PIX_FMT_NV12MT_16X16;
-}
-
-static inline void gsc_hw_enable_control(struct gsc_dev *dev, bool on)
-{
-	u32 cfg = readl(dev->regs + GSC_ENABLE);
-
-	if (on)
-		cfg |= GSC_ENABLE_ON;
-	else
-		cfg &= ~GSC_ENABLE_ON;
-
-	writel(cfg, dev->regs + GSC_ENABLE);
-}
-
-static inline int gsc_hw_get_irq_status(struct gsc_dev *dev)
-{
-	u32 cfg = readl(dev->regs + GSC_IRQ);
-	if (cfg & GSC_IRQ_STATUS_OR_IRQ)
-		return GSC_IRQ_OVERRUN;
-	else
-		return GSC_IRQ_DONE;
-
-}
-
-static inline void gsc_hw_clear_irq(struct gsc_dev *dev, int irq)
-{
-	u32 cfg = readl(dev->regs + GSC_IRQ);
-	if (irq == GSC_IRQ_OVERRUN)
-		cfg |= GSC_IRQ_STATUS_OR_IRQ;
-	else if (irq == GSC_IRQ_DONE)
-		cfg |= GSC_IRQ_STATUS_FRM_DONE_IRQ;
-	writel(cfg, dev->regs + GSC_IRQ);
-}
-
-static inline bool gsc_ctx_state_is_set(u32 mask, struct gsc_ctx *ctx)
-{
-	unsigned long flags;
-	bool ret;
-
-	spin_lock_irqsave(&ctx->gsc_dev->slock, flags);
-	ret = (ctx->state & mask) == mask;
-	spin_unlock_irqrestore(&ctx->gsc_dev->slock, flags);
-	return ret;
-}
-
-static inline struct gsc_frame *ctx_get_frame(struct gsc_ctx *ctx,
-					      enum v4l2_buf_type type)
-{
-	struct gsc_frame *frame;
-
-	if (V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE == type) {
-		frame = &ctx->s_frame;
-	} else if (V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == type) {
-		frame = &ctx->d_frame;
-	} else {
-		pr_err("Wrong buffer/video queue type (%d)", type);
-		return ERR_PTR(-EINVAL);
-	}
-
-	return frame;
-}
-
-void gsc_hw_set_sw_reset(struct gsc_dev *dev);
-int gsc_wait_reset(struct gsc_dev *dev);
-
-void gsc_hw_set_frm_done_irq_mask(struct gsc_dev *dev, bool mask);
-void gsc_hw_set_gsc_irq_enable(struct gsc_dev *dev, bool mask);
-void gsc_hw_set_input_buf_masking(struct gsc_dev *dev, u32 shift, bool enable);
-void gsc_hw_set_output_buf_masking(struct gsc_dev *dev, u32 shift, bool enable);
-void gsc_hw_set_input_addr(struct gsc_dev *dev, struct gsc_addr *addr,
-							int index);
-void gsc_hw_set_output_addr(struct gsc_dev *dev, struct gsc_addr *addr,
-							int index);
-void gsc_hw_set_input_path(struct gsc_ctx *ctx);
-void gsc_hw_set_in_size(struct gsc_ctx *ctx);
-void gsc_hw_set_in_image_rgb(struct gsc_ctx *ctx);
-void gsc_hw_set_in_image_format(struct gsc_ctx *ctx);
-void gsc_hw_set_output_path(struct gsc_ctx *ctx);
-void gsc_hw_set_out_size(struct gsc_ctx *ctx);
-void gsc_hw_set_out_image_rgb(struct gsc_ctx *ctx);
-void gsc_hw_set_out_image_format(struct gsc_ctx *ctx);
-void gsc_hw_set_prescaler(struct gsc_ctx *ctx);
-void gsc_hw_set_mainscaler(struct gsc_ctx *ctx);
-void gsc_hw_set_rotation(struct gsc_ctx *ctx);
-void gsc_hw_set_global_alpha(struct gsc_ctx *ctx);
-void gsc_hw_set_sfr_update(struct gsc_ctx *ctx);
-
-#endif /* GSC_CORE_H_ */