1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
4 */
5
6 #ifndef FIMC_CORE_H_
7 #define FIMC_CORE_H_
8
9 /*#define DEBUG*/
10
11 #include <linux/platform_device.h>
12 #include <linux/regmap.h>
13 #include <linux/sched.h>
14 #include <linux/spinlock.h>
15 #include <linux/mfd/syscon.h>
16 #include <linux/types.h>
17 #include <linux/videodev2.h>
18 #include <linux/io.h>
19 #include <linux/sizes.h>
20
21 #include <media/media-entity.h>
22 #include <media/videobuf2-v4l2.h>
23 #include <media/v4l2-ctrls.h>
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-mem2mem.h>
26 #include <media/v4l2-mediabus.h>
27 #include <media/drv-intf/exynos-fimc.h>
28
29 #define dbg(fmt, args...) \
30 pr_debug("%s:%d: " fmt "\n", __func__, __LINE__, ##args)
31
32 /* Time to wait for next frame VSYNC interrupt while stopping operation. */
33 #define FIMC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)
34 #define MAX_FIMC_CLOCKS 2
35 #define FIMC_DRIVER_NAME "exynos4-fimc"
36 #define FIMC_MAX_DEVS 4
37 #define FIMC_MAX_OUT_BUFS 4
38 #define SCALER_MAX_HRATIO 64
39 #define SCALER_MAX_VRATIO 64
40 #define DMA_MIN_SIZE 8
41 #define FIMC_CAMIF_MAX_HEIGHT 0x2000
42 #define FIMC_MAX_JPEG_BUF_SIZE (10 * SZ_1M)
43 #define FIMC_MAX_PLANES 3
44 #define FIMC_PIX_LIMITS_MAX 4
45 #define FIMC_DEF_MIN_SIZE 16
46 #define FIMC_DEF_HEIGHT_ALIGN 2
47 #define FIMC_DEF_HOR_OFFS_ALIGN 1
48 #define FIMC_DEFAULT_WIDTH 640
49 #define FIMC_DEFAULT_HEIGHT 480
50
51 /* indices to the clocks array */
52 enum {
53 CLK_BUS,
54 CLK_GATE,
55 };
56
57 enum fimc_dev_flags {
58 ST_LPM,
59 /* m2m node */
60 ST_M2M_RUN,
61 ST_M2M_PEND,
62 ST_M2M_SUSPENDING,
63 ST_M2M_SUSPENDED,
64 /* capture node */
65 ST_CAPT_PEND,
66 ST_CAPT_RUN,
67 ST_CAPT_STREAM,
68 ST_CAPT_ISP_STREAM,
69 ST_CAPT_SUSPENDED,
70 ST_CAPT_SHUT,
71 ST_CAPT_BUSY,
72 ST_CAPT_APPLY_CFG,
73 ST_CAPT_JPEG,
74 };
75
76 #define fimc_m2m_active(dev) test_bit(ST_M2M_RUN, &(dev)->state)
77 #define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)
78
79 #define fimc_capture_running(dev) test_bit(ST_CAPT_RUN, &(dev)->state)
80 #define fimc_capture_pending(dev) test_bit(ST_CAPT_PEND, &(dev)->state)
81 #define fimc_capture_busy(dev) test_bit(ST_CAPT_BUSY, &(dev)->state)
82
83 enum fimc_datapath {
84 FIMC_IO_NONE,
85 FIMC_IO_CAMERA,
86 FIMC_IO_DMA,
87 FIMC_IO_LCDFIFO,
88 FIMC_IO_WRITEBACK,
89 FIMC_IO_ISP,
90 };
91
92 enum fimc_color_fmt {
93 FIMC_FMT_RGB444 = 0x10,
94 FIMC_FMT_RGB555,
95 FIMC_FMT_RGB565,
96 FIMC_FMT_RGB666,
97 FIMC_FMT_RGB888,
98 FIMC_FMT_RGB30_LOCAL,
99 FIMC_FMT_YCBCR420 = 0x20,
100 FIMC_FMT_YCBYCR422,
101 FIMC_FMT_YCRYCB422,
102 FIMC_FMT_CBYCRY422,
103 FIMC_FMT_CRYCBY422,
104 FIMC_FMT_YCBCR444_LOCAL,
105 FIMC_FMT_RAW8 = 0x40,
106 FIMC_FMT_RAW10,
107 FIMC_FMT_RAW12,
108 FIMC_FMT_JPEG = 0x80,
109 FIMC_FMT_YUYV_JPEG = 0x100,
110 };
111
112 #define fimc_fmt_is_user_defined(x) (!!((x) & 0x180))
113 #define fimc_fmt_is_rgb(x) (!!((x) & 0x10))
114
115 #define IS_M2M(__strt) ((__strt) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || \
116 __strt == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
117
118 /* The hardware context state. */
119 #define FIMC_PARAMS (1 << 0)
120 #define FIMC_COMPOSE (1 << 1)
121 #define FIMC_CTX_M2M (1 << 16)
122 #define FIMC_CTX_CAP (1 << 17)
123 #define FIMC_CTX_SHUT (1 << 18)
124
125 /* Image conversion flags */
126 #define FIMC_IN_DMA_ACCESS_TILED (1 << 0)
127 #define FIMC_IN_DMA_ACCESS_LINEAR (0 << 0)
128 #define FIMC_OUT_DMA_ACCESS_TILED (1 << 1)
129 #define FIMC_OUT_DMA_ACCESS_LINEAR (0 << 1)
130 #define FIMC_SCAN_MODE_PROGRESSIVE (0 << 2)
131 #define FIMC_SCAN_MODE_INTERLACED (1 << 2)
132 /*
133 * YCbCr data dynamic range for RGB-YUV color conversion.
134 * Y/Cb/Cr: (0 ~ 255) */
135 #define FIMC_COLOR_RANGE_WIDE (0 << 3)
136 /* Y (16 ~ 235), Cb/Cr (16 ~ 240) */
137 #define FIMC_COLOR_RANGE_NARROW (1 << 3)
138
139 /**
140 * struct fimc_dma_offset - pixel offset information for DMA
141 * @y_h: y value horizontal offset
142 * @y_v: y value vertical offset
143 * @cb_h: cb value horizontal offset
144 * @cb_v: cb value vertical offset
145 * @cr_h: cr value horizontal offset
146 * @cr_v: cr value vertical offset
147 */
148 struct fimc_dma_offset {
149 int y_h;
150 int y_v;
151 int cb_h;
152 int cb_v;
153 int cr_h;
154 int cr_v;
155 };
156
157 /**
158 * struct fimc_effect - color effect information
159 * @type: effect type
160 * @pat_cb: cr value when type is "arbitrary"
161 * @pat_cr: cr value when type is "arbitrary"
162 */
163 struct fimc_effect {
164 u32 type;
165 u8 pat_cb;
166 u8 pat_cr;
167 };
168
169 /**
170 * struct fimc_scaler - the configuration data for FIMC inetrnal scaler
171 * @scaleup_h: flag indicating scaling up horizontally
172 * @scaleup_v: flag indicating scaling up vertically
173 * @copy_mode: flag indicating transparent DMA transfer (no scaling
174 * and color format conversion)
175 * @enabled: flag indicating if the scaler is used
176 * @hfactor: horizontal shift factor
177 * @vfactor: vertical shift factor
178 * @pre_hratio: horizontal ratio of the prescaler
179 * @pre_vratio: vertical ratio of the prescaler
180 * @pre_dst_width: the prescaler's destination width
181 * @pre_dst_height: the prescaler's destination height
182 * @main_hratio: the main scaler's horizontal ratio
183 * @main_vratio: the main scaler's vertical ratio
184 * @real_width: source pixel (width - offset)
185 * @real_height: source pixel (height - offset)
186 */
187 struct fimc_scaler {
188 unsigned int scaleup_h:1;
189 unsigned int scaleup_v:1;
190 unsigned int copy_mode:1;
191 unsigned int enabled:1;
192 u32 hfactor;
193 u32 vfactor;
194 u32 pre_hratio;
195 u32 pre_vratio;
196 u32 pre_dst_width;
197 u32 pre_dst_height;
198 u32 main_hratio;
199 u32 main_vratio;
200 u32 real_width;
201 u32 real_height;
202 };
203
204 /**
205 * struct fimc_addr - the FIMC physical address set for DMA
206 * @y: luminance plane physical address
207 * @cb: Cb plane physical address
208 * @cr: Cr plane physical address
209 */
210 struct fimc_addr {
211 u32 y;
212 u32 cb;
213 u32 cr;
214 };
215
216 /**
217 * struct fimc_vid_buffer - the driver's video buffer
218 * @vb: v4l videobuf buffer
219 * @list: linked list structure for buffer queue
220 * @paddr: precalculated physical address set
221 * @index: buffer index for the output DMA engine
222 */
223 struct fimc_vid_buffer {
224 struct vb2_v4l2_buffer vb;
225 struct list_head list;
226 struct fimc_addr paddr;
227 int index;
228 };
229
230 /**
231 * struct fimc_frame - source/target frame properties
232 * @f_width: image full width (virtual screen size)
233 * @f_height: image full height (virtual screen size)
234 * @o_width: original image width as set by S_FMT
235 * @o_height: original image height as set by S_FMT
236 * @offs_h: image horizontal pixel offset
237 * @offs_v: image vertical pixel offset
238 * @width: image pixel width
239 * @height: image pixel weight
240 * @payload: image size in bytes (w x h x bpp)
241 * @bytesperline: bytesperline value for each plane
242 * @paddr: image frame buffer physical addresses
243 * @dma_offset: DMA offset in bytes
244 * @fmt: fimc color format pointer
245 */
246 struct fimc_frame {
247 u32 f_width;
248 u32 f_height;
249 u32 o_width;
250 u32 o_height;
251 u32 offs_h;
252 u32 offs_v;
253 u32 width;
254 u32 height;
255 unsigned int payload[VIDEO_MAX_PLANES];
256 unsigned int bytesperline[VIDEO_MAX_PLANES];
257 struct fimc_addr paddr;
258 struct fimc_dma_offset dma_offset;
259 struct fimc_fmt *fmt;
260 u8 alpha;
261 };
262
263 /**
264 * struct fimc_m2m_device - v4l2 memory-to-memory device data
265 * @vfd: the video device node for v4l2 m2m mode
266 * @m2m_dev: v4l2 memory-to-memory device data
267 * @ctx: hardware context data
268 * @refcnt: the reference counter
269 */
270 struct fimc_m2m_device {
271 struct video_device vfd;
272 struct v4l2_m2m_dev *m2m_dev;
273 struct fimc_ctx *ctx;
274 int refcnt;
275 };
276
277 #define FIMC_SD_PAD_SINK_CAM 0
278 #define FIMC_SD_PAD_SINK_FIFO 1
279 #define FIMC_SD_PAD_SOURCE 2
280 #define FIMC_SD_PADS_NUM 3
281
282 /**
283 * struct fimc_vid_cap - camera capture device information
284 * @ctx: hardware context data
285 * @subdev: subdev exposing the FIMC processing block
286 * @ve: exynos video device entity structure
287 * @vd_pad: fimc video capture node pad
288 * @sd_pads: fimc video processing block pads
289 * @ci_fmt: image format at the FIMC camera input (and the scaler output)
290 * @wb_fmt: image format at the FIMC ISP Writeback input
291 * @source_config: external image source related configuration structure
292 * @pending_buf_q: the pending buffer queue head
293 * @active_buf_q: the queue head of buffers scheduled in hardware
294 * @vbq: the capture am video buffer queue
295 * @active_buf_cnt: number of video buffers scheduled in hardware
296 * @buf_index: index for managing the output DMA buffers
297 * @frame_count: the frame counter for statistics
298 * @reqbufs_count: the number of buffers requested in REQBUFS ioctl
299 * @input_index: input (camera sensor) index
300 * @input: capture input type, grp_id of the attached subdev
301 * @user_subdev_api: true if subdevs are not configured by the host driver
302 * @inh_sensor_ctrls: a flag indicating v4l2 controls are inherited from
303 * an image sensor subdev
304 */
305 struct fimc_vid_cap {
306 struct fimc_ctx *ctx;
307 struct v4l2_subdev subdev;
308 struct exynos_video_entity ve;
309 struct media_pad vd_pad;
310 struct media_pad sd_pads[FIMC_SD_PADS_NUM];
311 struct v4l2_mbus_framefmt ci_fmt;
312 struct v4l2_mbus_framefmt wb_fmt;
313 struct fimc_source_info source_config;
314 struct list_head pending_buf_q;
315 struct list_head active_buf_q;
316 struct vb2_queue vbq;
317 int active_buf_cnt;
318 int buf_index;
319 unsigned int frame_count;
320 unsigned int reqbufs_count;
321 bool streaming;
322 int input_index;
323 u32 input;
324 bool user_subdev_api;
325 bool inh_sensor_ctrls;
326 };
327
328 /**
329 * struct fimc_pix_limit - image pixel size limits in various IP configurations
330 *
331 * @scaler_en_w: max input pixel width when the scaler is enabled
332 * @scaler_dis_w: max input pixel width when the scaler is disabled
333 * @in_rot_en_h: max input width with the input rotator is on
334 * @in_rot_dis_w: max input width with the input rotator is off
335 * @out_rot_en_w: max output width with the output rotator on
336 * @out_rot_dis_w: max output width with the output rotator off
337 */
338 struct fimc_pix_limit {
339 u16 scaler_en_w;
340 u16 scaler_dis_w;
341 u16 in_rot_en_h;
342 u16 in_rot_dis_w;
343 u16 out_rot_en_w;
344 u16 out_rot_dis_w;
345 };
346
347 /**
348 * struct fimc_variant - FIMC device variant information
349 * @has_inp_rot: set if has input rotator
350 * @has_out_rot: set if has output rotator
351 * @has_mainscaler_ext: 1 if extended mainscaler ratios in CIEXTEN register
352 * are present in this IP revision
353 * @has_cam_if: set if this instance has a camera input interface
354 * @has_isp_wb: set if this instance has ISP writeback input
355 * @pix_limit: pixel size constraints for the scaler
356 * @min_inp_pixsize: minimum input pixel size
357 * @min_out_pixsize: minimum output pixel size
358 * @hor_offs_align: horizontal pixel offset alignment
359 * @min_vsize_align: minimum vertical pixel size alignment
360 */
361 struct fimc_variant {
362 unsigned int has_inp_rot:1;
363 unsigned int has_out_rot:1;
364 unsigned int has_mainscaler_ext:1;
365 unsigned int has_cam_if:1;
366 unsigned int has_isp_wb:1;
367 const struct fimc_pix_limit *pix_limit;
368 u16 min_inp_pixsize;
369 u16 min_out_pixsize;
370 u16 hor_offs_align;
371 u16 min_vsize_align;
372 };
373
374 /**
375 * struct fimc_drvdata - per device type driver data
376 * @variant: variant information for this device
377 * @num_entities: number of fimc instances available in a SoC
378 * @lclk_frequency: local bus clock frequency
379 * @cistatus2: 1 if the FIMC IPs have CISTATUS2 register
380 * @dma_pix_hoff: the horizontal DMA offset unit: 1 - pixels, 0 - bytes
381 * @alpha_color: 1 if alpha color component is supported
382 * @out_buf_count: maximum number of output DMA buffers supported
383 */
384 struct fimc_drvdata {
385 const struct fimc_variant *variant[FIMC_MAX_DEVS];
386 int num_entities;
387 unsigned long lclk_frequency;
388 /* Fields common to all FIMC IP instances */
389 u8 cistatus2;
390 u8 dma_pix_hoff;
391 u8 alpha_color;
392 u8 out_buf_count;
393 };
394
395 #define fimc_get_drvdata(_pdev) \
396 ((struct fimc_drvdata *) platform_get_device_id(_pdev)->driver_data)
397
398 struct fimc_ctx;
399
400 /**
401 * struct fimc_dev - abstraction for FIMC entity
402 * @slock: the spinlock protecting this data structure
403 * @lock: the mutex protecting this data structure
404 * @pdev: pointer to the FIMC platform device
405 * @pdata: pointer to the device platform data
406 * @sysreg: pointer to the SYSREG regmap
407 * @variant: the IP variant information
408 * @id: FIMC device index (0..FIMC_MAX_DEVS)
409 * @clock: clocks required for FIMC operation
410 * @regs: the mapped hardware registers
411 * @irq_queue: interrupt handler waitqueue
412 * @v4l2_dev: root v4l2_device
413 * @m2m: memory-to-memory V4L2 device information
414 * @vid_cap: camera capture device information
415 * @state: flags used to synchronize m2m and capture mode operation
416 * @pipeline: fimc video capture pipeline data structure
417 */
418 struct fimc_dev {
419 spinlock_t slock;
420 struct mutex lock;
421 struct platform_device *pdev;
422 struct s5p_platform_fimc *pdata;
423 struct regmap *sysreg;
424 const struct fimc_variant *variant;
425 const struct fimc_drvdata *drv_data;
426 int id;
427 struct clk *clock[MAX_FIMC_CLOCKS];
428 void __iomem *regs;
429 wait_queue_head_t irq_queue;
430 struct v4l2_device *v4l2_dev;
431 struct fimc_m2m_device m2m;
432 struct fimc_vid_cap vid_cap;
433 unsigned long state;
434 };
435
436 /**
437 * struct fimc_ctrls - v4l2 controls structure
438 * @handler: the control handler
439 * @colorfx: image effect control
440 * @colorfx_cbcr: Cb/Cr coefficients control
441 * @rotate: image rotation control
442 * @hflip: horizontal flip control
443 * @vflip: vertical flip control
444 * @alpha: RGB alpha control
445 * @ready: true if @handler is initialized
446 */
447 struct fimc_ctrls {
448 struct v4l2_ctrl_handler handler;
449 struct {
450 struct v4l2_ctrl *colorfx;
451 struct v4l2_ctrl *colorfx_cbcr;
452 };
453 struct v4l2_ctrl *rotate;
454 struct v4l2_ctrl *hflip;
455 struct v4l2_ctrl *vflip;
456 struct v4l2_ctrl *alpha;
457 bool ready;
458 };
459
460 /**
461 * fimc_ctx - the device context data
462 * @s_frame: source frame properties
463 * @d_frame: destination frame properties
464 * @out_order_1p: output 1-plane YCBCR order
465 * @out_order_2p: output 2-plane YCBCR order
466 * @in_order_1p input 1-plane YCBCR order
467 * @in_order_2p: input 2-plane YCBCR order
468 * @in_path: input mode (DMA or camera)
469 * @out_path: output mode (DMA or FIFO)
470 * @scaler: image scaler properties
471 * @effect: image effect
472 * @rotation: image clockwise rotation in degrees
473 * @hflip: indicates image horizontal flip if set
474 * @vflip: indicates image vertical flip if set
475 * @flags: additional flags for image conversion
476 * @state: flags to keep track of user configuration
477 * @fimc_dev: the FIMC device this context applies to
478 * @fh: v4l2 file handle
479 * @ctrls: v4l2 controls structure
480 */
481 struct fimc_ctx {
482 struct fimc_frame s_frame;
483 struct fimc_frame d_frame;
484 u32 out_order_1p;
485 u32 out_order_2p;
486 u32 in_order_1p;
487 u32 in_order_2p;
488 enum fimc_datapath in_path;
489 enum fimc_datapath out_path;
490 struct fimc_scaler scaler;
491 struct fimc_effect effect;
492 int rotation;
493 unsigned int hflip:1;
494 unsigned int vflip:1;
495 u32 flags;
496 u32 state;
497 struct fimc_dev *fimc_dev;
498 struct v4l2_fh fh;
499 struct fimc_ctrls ctrls;
500 };
501
502 #define fh_to_ctx(__fh) container_of(__fh, struct fimc_ctx, fh)
503
set_frame_bounds(struct fimc_frame * f,u32 width,u32 height)504 static inline void set_frame_bounds(struct fimc_frame *f, u32 width, u32 height)
505 {
506 f->o_width = width;
507 f->o_height = height;
508 f->f_width = width;
509 f->f_height = height;
510 }
511
set_frame_crop(struct fimc_frame * f,u32 left,u32 top,u32 width,u32 height)512 static inline void set_frame_crop(struct fimc_frame *f,
513 u32 left, u32 top, u32 width, u32 height)
514 {
515 f->offs_h = left;
516 f->offs_v = top;
517 f->width = width;
518 f->height = height;
519 }
520
fimc_get_format_depth(struct fimc_fmt * ff)521 static inline u32 fimc_get_format_depth(struct fimc_fmt *ff)
522 {
523 u32 i, depth = 0;
524
525 if (ff != NULL)
526 for (i = 0; i < ff->colplanes; i++)
527 depth += ff->depth[i];
528 return depth;
529 }
530
fimc_capture_active(struct fimc_dev * fimc)531 static inline bool fimc_capture_active(struct fimc_dev *fimc)
532 {
533 unsigned long flags;
534 bool ret;
535
536 spin_lock_irqsave(&fimc->slock, flags);
537 ret = !!(fimc->state & (1 << ST_CAPT_RUN) ||
538 fimc->state & (1 << ST_CAPT_PEND));
539 spin_unlock_irqrestore(&fimc->slock, flags);
540 return ret;
541 }
542
fimc_ctx_state_set(u32 state,struct fimc_ctx * ctx)543 static inline void fimc_ctx_state_set(u32 state, struct fimc_ctx *ctx)
544 {
545 unsigned long flags;
546
547 spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
548 ctx->state |= state;
549 spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
550 }
551
fimc_ctx_state_is_set(u32 mask,struct fimc_ctx * ctx)552 static inline bool fimc_ctx_state_is_set(u32 mask, struct fimc_ctx *ctx)
553 {
554 unsigned long flags;
555 bool ret;
556
557 spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
558 ret = (ctx->state & mask) == mask;
559 spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
560 return ret;
561 }
562
tiled_fmt(struct fimc_fmt * fmt)563 static inline int tiled_fmt(struct fimc_fmt *fmt)
564 {
565 return fmt->fourcc == V4L2_PIX_FMT_NV12MT;
566 }
567
fimc_jpeg_fourcc(u32 pixelformat)568 static inline bool fimc_jpeg_fourcc(u32 pixelformat)
569 {
570 return (pixelformat == V4L2_PIX_FMT_JPEG ||
571 pixelformat == V4L2_PIX_FMT_S5C_UYVY_JPG);
572 }
573
fimc_user_defined_mbus_fmt(u32 code)574 static inline bool fimc_user_defined_mbus_fmt(u32 code)
575 {
576 return (code == MEDIA_BUS_FMT_JPEG_1X8 ||
577 code == MEDIA_BUS_FMT_S5C_UYVY_JPEG_1X8);
578 }
579
580 /* Return the alpha component bit mask */
fimc_get_alpha_mask(struct fimc_fmt * fmt)581 static inline int fimc_get_alpha_mask(struct fimc_fmt *fmt)
582 {
583 switch (fmt->color) {
584 case FIMC_FMT_RGB444: return 0x0f;
585 case FIMC_FMT_RGB555: return 0x01;
586 case FIMC_FMT_RGB888: return 0xff;
587 default: return 0;
588 };
589 }
590
ctx_get_frame(struct fimc_ctx * ctx,enum v4l2_buf_type type)591 static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
592 enum v4l2_buf_type type)
593 {
594 struct fimc_frame *frame;
595
596 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
597 type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
598 if (fimc_ctx_state_is_set(FIMC_CTX_M2M, ctx))
599 frame = &ctx->s_frame;
600 else
601 return ERR_PTR(-EINVAL);
602 } else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
603 type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
604 frame = &ctx->d_frame;
605 } else {
606 v4l2_err(ctx->fimc_dev->v4l2_dev,
607 "Wrong buffer/video queue type (%d)\n", type);
608 return ERR_PTR(-EINVAL);
609 }
610
611 return frame;
612 }
613
614 /* -----------------------------------------------------*/
615 /* fimc-core.c */
616 int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
617 struct v4l2_fmtdesc *f);
618 int fimc_ctrls_create(struct fimc_ctx *ctx);
619 void fimc_ctrls_delete(struct fimc_ctx *ctx);
620 void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
621 void fimc_alpha_ctrl_update(struct fimc_ctx *ctx);
622 void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f);
623 void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
624 struct v4l2_pix_format_mplane *pix);
625 struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
626 unsigned int mask, int index);
627 struct fimc_fmt *fimc_get_format(unsigned int index);
628
629 int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
630 int dw, int dh, int rotation);
631 int fimc_set_scaler_info(struct fimc_ctx *ctx);
632 int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
633 int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
634 struct fimc_frame *frame, struct fimc_addr *paddr);
635 void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f);
636 void fimc_set_yuv_order(struct fimc_ctx *ctx);
637 void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf);
638
639 int fimc_register_m2m_device(struct fimc_dev *fimc,
640 struct v4l2_device *v4l2_dev);
641 void fimc_unregister_m2m_device(struct fimc_dev *fimc);
642 int fimc_register_driver(void);
643 void fimc_unregister_driver(void);
644
645 #ifdef CONFIG_MFD_SYSCON
fimc_get_sysreg_regmap(struct device_node * node)646 static inline struct regmap * fimc_get_sysreg_regmap(struct device_node *node)
647 {
648 return syscon_regmap_lookup_by_phandle(node, "samsung,sysreg");
649 }
650 #else
651 #define fimc_get_sysreg_regmap(node) (NULL)
652 #endif
653
654 /* -----------------------------------------------------*/
655 /* fimc-m2m.c */
656 void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state);
657
658 /* -----------------------------------------------------*/
659 /* fimc-capture.c */
660 int fimc_initialize_capture_subdev(struct fimc_dev *fimc);
661 void fimc_unregister_capture_subdev(struct fimc_dev *fimc);
662 int fimc_capture_ctrls_create(struct fimc_dev *fimc);
663 void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
664 void *arg);
665 int fimc_capture_suspend(struct fimc_dev *fimc);
666 int fimc_capture_resume(struct fimc_dev *fimc);
667
668 /*
669 * Buffer list manipulation functions. Must be called with fimc.slock held.
670 */
671
672 /**
673 * fimc_active_queue_add - add buffer to the capture active buffers queue
674 * @buf: buffer to add to the active buffers list
675 */
fimc_active_queue_add(struct fimc_vid_cap * vid_cap,struct fimc_vid_buffer * buf)676 static inline void fimc_active_queue_add(struct fimc_vid_cap *vid_cap,
677 struct fimc_vid_buffer *buf)
678 {
679 list_add_tail(&buf->list, &vid_cap->active_buf_q);
680 vid_cap->active_buf_cnt++;
681 }
682
683 /**
684 * fimc_active_queue_pop - pop buffer from the capture active buffers queue
685 *
686 * The caller must assure the active_buf_q list is not empty.
687 */
fimc_active_queue_pop(struct fimc_vid_cap * vid_cap)688 static inline struct fimc_vid_buffer *fimc_active_queue_pop(
689 struct fimc_vid_cap *vid_cap)
690 {
691 struct fimc_vid_buffer *buf;
692 buf = list_entry(vid_cap->active_buf_q.next,
693 struct fimc_vid_buffer, list);
694 list_del(&buf->list);
695 vid_cap->active_buf_cnt--;
696 return buf;
697 }
698
699 /**
700 * fimc_pending_queue_add - add buffer to the capture pending buffers queue
701 * @buf: buffer to add to the pending buffers list
702 */
fimc_pending_queue_add(struct fimc_vid_cap * vid_cap,struct fimc_vid_buffer * buf)703 static inline void fimc_pending_queue_add(struct fimc_vid_cap *vid_cap,
704 struct fimc_vid_buffer *buf)
705 {
706 list_add_tail(&buf->list, &vid_cap->pending_buf_q);
707 }
708
709 /**
710 * fimc_pending_queue_pop - pop buffer from the capture pending buffers queue
711 *
712 * The caller must assure the pending_buf_q list is not empty.
713 */
fimc_pending_queue_pop(struct fimc_vid_cap * vid_cap)714 static inline struct fimc_vid_buffer *fimc_pending_queue_pop(
715 struct fimc_vid_cap *vid_cap)
716 {
717 struct fimc_vid_buffer *buf;
718 buf = list_entry(vid_cap->pending_buf_q.next,
719 struct fimc_vid_buffer, list);
720 list_del(&buf->list);
721 return buf;
722 }
723
724 #endif /* FIMC_CORE_H_ */
725
