| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sungchun Kang | 1618 | 96.37% | 1 | 8.33% |
| Shaik Ameer Basha | 24 | 1.43% | 2 | 16.67% |
| Marek Szyprowski | 22 | 1.31% | 2 | 16.67% |
| Arun Kumar K | 4 | 0.24% | 1 | 8.33% |
| Hans Verkuil | 4 | 0.24% | 2 | 16.67% |
| Thibault Saunier | 4 | 0.24% | 1 | 8.33% |
| Junghak Sung | 2 | 0.12% | 2 | 16.67% |
| Boris Brezillon | 1 | 0.06% | 1 | 8.33% |
| Total | 1679 | 12 |
/* * Copyright (c) 2011 - 2012 Samsung Electronics Co., Ltd. * http://www.samsung.com * * header file for Samsung EXYNOS5 SoC series G-Scaler 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_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_LOCAL: to local path * @GSC_WRITEBACK: from FIMD */ enum gsc_datapath { GSC_CAMERA = 0x1, GSC_DMA, GSC_MIXER, GSC_FIMD, 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 * @name: format description * @pixelformat: the fourcc code for this format, 0 if not applicable * @yorder: Y/C order * @corder: Chrominance order control * @num_planes: number of physically non-contiguous data planes * @nr_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; char *name; 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 */ 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) * @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 */ 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; }; /** * 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 * @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 */ 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_mplane(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_ */
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