1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Support for Medifield PNW Camera Imaging ISP subsystem.
4  *
5  * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
6  *
7  * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License version
11  * 2 as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  *
19  */
20 #include <linux/errno.h>
21 #include <linux/firmware.h>
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
24 #include <linux/io.h>
25 #include <linux/kernel.h>
26 #include <linux/kfifo.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/timer.h>
29 
30 #include <asm/iosf_mbi.h>
31 
32 #include <media/v4l2-event.h>
33 
34 #define CREATE_TRACE_POINTS
35 #include "atomisp_trace_event.h"
36 
37 #include "atomisp_cmd.h"
38 #include "atomisp_common.h"
39 #include "atomisp_fops.h"
40 #include "atomisp_internal.h"
41 #include "atomisp_ioctl.h"
42 #include "atomisp-regs.h"
43 #include "atomisp_tables.h"
44 #include "atomisp_compat.h"
45 #include "atomisp_subdev.h"
46 #include "atomisp_dfs_tables.h"
47 
48 #include <hmm/hmm.h>
49 
50 #include "sh_css_hrt.h"
51 #include "sh_css_defs.h"
52 #include "system_global.h"
53 #include "sh_css_internal.h"
54 #include "sh_css_sp.h"
55 #include "gp_device.h"
56 #include "device_access.h"
57 #include "irq.h"
58 
59 #include "ia_css_types.h"
60 #include "ia_css_stream.h"
61 #include "ia_css_debug.h"
62 #include "bits.h"
63 
64 /* We should never need to run the flash for more than 2 frames.
65  * At 15fps this means 133ms. We set the timeout a bit longer.
66  * Each flash driver is supposed to set its own timeout, but
67  * just in case someone else changed the timeout, we set it
68  * here to make sure we don't damage the flash hardware. */
69 #define FLASH_TIMEOUT 800 /* ms */
70 
71 union host {
72 	struct {
73 		void *kernel_ptr;
74 		void __user *user_ptr;
75 		int size;
76 	} scalar;
77 	struct {
78 		void *hmm_ptr;
79 	} ptr;
80 };
81 
82 /*
83  * get sensor:dis71430/ov2720 related info from v4l2_subdev->priv data field.
84  * subdev->priv is set in mrst.c
85  */
86 struct camera_mipi_info *atomisp_to_sensor_mipi_info(struct v4l2_subdev *sd)
87 {
88 	return (struct camera_mipi_info *)v4l2_get_subdev_hostdata(sd);
89 }
90 
91 /*
92  * get struct atomisp_video_pipe from v4l2 video_device
93  */
94 struct atomisp_video_pipe *atomisp_to_video_pipe(struct video_device *dev)
95 {
96 	return (struct atomisp_video_pipe *)
97 	       container_of(dev, struct atomisp_video_pipe, vdev);
98 }
99 
100 static unsigned short atomisp_get_sensor_fps(struct atomisp_sub_device *asd)
101 {
102 	struct v4l2_subdev_frame_interval fi = { 0 };
103 	struct atomisp_device *isp = asd->isp;
104 
105 	unsigned short fps = 0;
106 	int ret;
107 
108 	ret = v4l2_subdev_call_state_active(isp->inputs[asd->input_curr].camera,
109 					    pad, get_frame_interval, &fi);
110 
111 	if (!ret && fi.interval.numerator)
112 		fps = fi.interval.denominator / fi.interval.numerator;
113 
114 	return fps;
115 }
116 
117 /*
118  * DFS progress is shown as follows:
119  * 1. Target frequency is calculated according to FPS/Resolution/ISP running
120  *    mode.
121  * 2. Ratio is calculated using formula: 2 * HPLL / target frequency - 1
122  *    with proper rounding.
123  * 3. Set ratio to ISPFREQ40, 1 to FREQVALID and ISPFREQGUAR40
124  *    to 200MHz in ISPSSPM1.
125  * 4. Wait for FREQVALID to be cleared by P-Unit.
126  * 5. Wait for field ISPFREQSTAT40 in ISPSSPM1 turn to ratio set in 3.
127  */
128 static int write_target_freq_to_hw(struct atomisp_device *isp,
129 				   unsigned int new_freq)
130 {
131 	unsigned int ratio, timeout, guar_ratio;
132 	u32 isp_sspm1 = 0;
133 	int i;
134 
135 	if (!isp->hpll_freq) {
136 		dev_err(isp->dev, "failed to get hpll_freq. no change to freq\n");
137 		return -EINVAL;
138 	}
139 
140 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
141 	if (isp_sspm1 & ISP_FREQ_VALID_MASK) {
142 		dev_dbg(isp->dev, "clearing ISPSSPM1 valid bit.\n");
143 		iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
144 			       isp_sspm1 & ~(1 << ISP_FREQ_VALID_OFFSET));
145 	}
146 
147 	ratio = (2 * isp->hpll_freq + new_freq / 2) / new_freq - 1;
148 	guar_ratio = (2 * isp->hpll_freq + 200 / 2) / 200 - 1;
149 
150 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
151 	isp_sspm1 &= ~(0x1F << ISP_REQ_FREQ_OFFSET);
152 
153 	for (i = 0; i < ISP_DFS_TRY_TIMES; i++) {
154 		iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
155 			       isp_sspm1
156 			       | ratio << ISP_REQ_FREQ_OFFSET
157 			       | 1 << ISP_FREQ_VALID_OFFSET
158 			       | guar_ratio << ISP_REQ_GUAR_FREQ_OFFSET);
159 
160 		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
161 		timeout = 20;
162 		while ((isp_sspm1 & ISP_FREQ_VALID_MASK) && timeout) {
163 			iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
164 			dev_dbg(isp->dev, "waiting for ISPSSPM1 valid bit to be 0.\n");
165 			udelay(100);
166 			timeout--;
167 		}
168 
169 		if (timeout != 0)
170 			break;
171 	}
172 
173 	if (timeout == 0) {
174 		dev_err(isp->dev, "DFS failed due to HW error.\n");
175 		return -EINVAL;
176 	}
177 
178 	iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
179 	timeout = 10;
180 	while (((isp_sspm1 >> ISP_FREQ_STAT_OFFSET) != ratio) && timeout) {
181 		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
182 		dev_dbg(isp->dev, "waiting for ISPSSPM1 status bit to be 0x%x.\n",
183 			new_freq);
184 		udelay(100);
185 		timeout--;
186 	}
187 	if (timeout == 0) {
188 		dev_err(isp->dev, "DFS target freq is rejected by HW.\n");
189 		return -EINVAL;
190 	}
191 
192 	return 0;
193 }
194 
195 int atomisp_freq_scaling(struct atomisp_device *isp,
196 			 enum atomisp_dfs_mode mode,
197 			 bool force)
198 {
199 	const struct atomisp_dfs_config *dfs;
200 	unsigned int new_freq;
201 	struct atomisp_freq_scaling_rule curr_rules;
202 	int i, ret;
203 	unsigned short fps = 0;
204 
205 	dfs = isp->dfs;
206 
207 	if (dfs->lowest_freq == 0 || dfs->max_freq_at_vmin == 0 ||
208 	    dfs->highest_freq == 0 || dfs->dfs_table_size == 0 ||
209 	    !dfs->dfs_table) {
210 		dev_err(isp->dev, "DFS configuration is invalid.\n");
211 		return -EINVAL;
212 	}
213 
214 	if (mode == ATOMISP_DFS_MODE_LOW) {
215 		new_freq = dfs->lowest_freq;
216 		goto done;
217 	}
218 
219 	if (mode == ATOMISP_DFS_MODE_MAX) {
220 		new_freq = dfs->highest_freq;
221 		goto done;
222 	}
223 
224 	fps = atomisp_get_sensor_fps(&isp->asd);
225 	if (fps == 0) {
226 		dev_info(isp->dev,
227 			 "Sensor didn't report FPS. Using DFS max mode.\n");
228 		new_freq = dfs->highest_freq;
229 		goto done;
230 	}
231 
232 	curr_rules.width = isp->asd.fmt[ATOMISP_SUBDEV_PAD_SOURCE].fmt.width;
233 	curr_rules.height = isp->asd.fmt[ATOMISP_SUBDEV_PAD_SOURCE].fmt.height;
234 	curr_rules.fps = fps;
235 	curr_rules.run_mode = isp->asd.run_mode->val;
236 
237 	/* search for the target frequency by looping freq rules*/
238 	for (i = 0; i < dfs->dfs_table_size; i++) {
239 		if (curr_rules.width != dfs->dfs_table[i].width &&
240 		    dfs->dfs_table[i].width != ISP_FREQ_RULE_ANY)
241 			continue;
242 		if (curr_rules.height != dfs->dfs_table[i].height &&
243 		    dfs->dfs_table[i].height != ISP_FREQ_RULE_ANY)
244 			continue;
245 		if (curr_rules.fps != dfs->dfs_table[i].fps &&
246 		    dfs->dfs_table[i].fps != ISP_FREQ_RULE_ANY)
247 			continue;
248 		if (curr_rules.run_mode != dfs->dfs_table[i].run_mode &&
249 		    dfs->dfs_table[i].run_mode != ISP_FREQ_RULE_ANY)
250 			continue;
251 		break;
252 	}
253 
254 	if (i == dfs->dfs_table_size)
255 		new_freq = dfs->max_freq_at_vmin;
256 	else
257 		new_freq = dfs->dfs_table[i].isp_freq;
258 
259 done:
260 	dev_dbg(isp->dev, "DFS target frequency=%d.\n", new_freq);
261 
262 	if ((new_freq == isp->running_freq) && !force)
263 		return 0;
264 
265 	dev_dbg(isp->dev, "Programming DFS frequency to %d\n", new_freq);
266 
267 	ret = write_target_freq_to_hw(isp, new_freq);
268 	if (!ret) {
269 		isp->running_freq = new_freq;
270 		trace_ipu_pstate(new_freq, -1);
271 	}
272 	return ret;
273 }
274 
275 /*
276  * reset and restore ISP
277  */
278 int atomisp_reset(struct atomisp_device *isp)
279 {
280 	/* Reset ISP by power-cycling it */
281 	int ret = 0;
282 
283 	dev_dbg(isp->dev, "%s\n", __func__);
284 
285 	ret = atomisp_power_off(isp->dev);
286 	if (ret < 0)
287 		dev_err(isp->dev, "atomisp_power_off failed, %d\n", ret);
288 
289 	ret = atomisp_power_on(isp->dev);
290 	if (ret < 0) {
291 		dev_err(isp->dev, "atomisp_power_on failed, %d\n", ret);
292 		isp->isp_fatal_error = true;
293 	}
294 
295 	return ret;
296 }
297 
298 /*
299  * interrupt disable functions
300  */
301 static void disable_isp_irq(enum hrt_isp_css_irq irq)
302 {
303 	irq_disable_channel(IRQ0_ID, irq);
304 
305 	if (irq != hrt_isp_css_irq_sp)
306 		return;
307 
308 	cnd_sp_irq_enable(SP0_ID, false);
309 }
310 
311 /*
312  * interrupt clean function
313  */
314 static void clear_isp_irq(enum hrt_isp_css_irq irq)
315 {
316 	irq_clear_all(IRQ0_ID);
317 }
318 
319 void atomisp_msi_irq_init(struct atomisp_device *isp)
320 {
321 	struct pci_dev *pdev = to_pci_dev(isp->dev);
322 	u32 msg32;
323 	u16 msg16;
324 
325 	pci_read_config_dword(pdev, PCI_MSI_CAPID, &msg32);
326 	msg32 |= 1 << MSI_ENABLE_BIT;
327 	pci_write_config_dword(pdev, PCI_MSI_CAPID, msg32);
328 
329 	msg32 = (1 << INTR_IER) | (1 << INTR_IIR);
330 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg32);
331 
332 	pci_read_config_word(pdev, PCI_COMMAND, &msg16);
333 	msg16 |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
334 		  PCI_COMMAND_INTX_DISABLE);
335 	pci_write_config_word(pdev, PCI_COMMAND, msg16);
336 }
337 
338 void atomisp_msi_irq_uninit(struct atomisp_device *isp)
339 {
340 	struct pci_dev *pdev = to_pci_dev(isp->dev);
341 	u32 msg32;
342 	u16 msg16;
343 
344 	pci_read_config_dword(pdev, PCI_MSI_CAPID, &msg32);
345 	msg32 &=  ~(1 << MSI_ENABLE_BIT);
346 	pci_write_config_dword(pdev, PCI_MSI_CAPID, msg32);
347 
348 	msg32 = 0x0;
349 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg32);
350 
351 	pci_read_config_word(pdev, PCI_COMMAND, &msg16);
352 	msg16 &= ~(PCI_COMMAND_MASTER);
353 	pci_write_config_word(pdev, PCI_COMMAND, msg16);
354 }
355 
356 static void atomisp_sof_event(struct atomisp_sub_device *asd)
357 {
358 	struct v4l2_event event = {0};
359 
360 	event.type = V4L2_EVENT_FRAME_SYNC;
361 	event.u.frame_sync.frame_sequence = atomic_read(&asd->sof_count);
362 
363 	v4l2_event_queue(asd->subdev.devnode, &event);
364 }
365 
366 void atomisp_eof_event(struct atomisp_sub_device *asd, uint8_t exp_id)
367 {
368 	struct v4l2_event event = {0};
369 
370 	event.type = V4L2_EVENT_FRAME_END;
371 	event.u.frame_sync.frame_sequence = exp_id;
372 
373 	v4l2_event_queue(asd->subdev.devnode, &event);
374 }
375 
376 static void atomisp_3a_stats_ready_event(struct atomisp_sub_device *asd,
377 	uint8_t exp_id)
378 {
379 	struct v4l2_event event = {0};
380 
381 	event.type = V4L2_EVENT_ATOMISP_3A_STATS_READY;
382 	event.u.frame_sync.frame_sequence = exp_id;
383 
384 	v4l2_event_queue(asd->subdev.devnode, &event);
385 }
386 
387 static void atomisp_metadata_ready_event(struct atomisp_sub_device *asd,
388 	enum atomisp_metadata_type md_type)
389 {
390 	struct v4l2_event event = {0};
391 
392 	event.type = V4L2_EVENT_ATOMISP_METADATA_READY;
393 	event.u.data[0] = md_type;
394 
395 	v4l2_event_queue(asd->subdev.devnode, &event);
396 }
397 
398 static void atomisp_reset_event(struct atomisp_sub_device *asd)
399 {
400 	struct v4l2_event event = {0};
401 
402 	event.type = V4L2_EVENT_ATOMISP_CSS_RESET;
403 
404 	v4l2_event_queue(asd->subdev.devnode, &event);
405 }
406 
407 static void print_csi_rx_errors(enum mipi_port_id port,
408 				struct atomisp_device *isp)
409 {
410 	u32 infos = 0;
411 
412 	atomisp_css_rx_get_irq_info(port, &infos);
413 
414 	dev_err(isp->dev, "CSI Receiver port %d errors:\n", port);
415 	if (infos & IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN)
416 		dev_err(isp->dev, "  buffer overrun");
417 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_SOT)
418 		dev_err(isp->dev, "  start-of-transmission error");
419 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC)
420 		dev_err(isp->dev, "  start-of-transmission sync error");
421 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_CONTROL)
422 		dev_err(isp->dev, "  control error");
423 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE)
424 		dev_err(isp->dev, "  2 or more ECC errors");
425 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_CRC)
426 		dev_err(isp->dev, "  CRC mismatch");
427 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID)
428 		dev_err(isp->dev, "  unknown error");
429 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC)
430 		dev_err(isp->dev, "  frame sync error");
431 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA)
432 		dev_err(isp->dev, "  frame data error");
433 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT)
434 		dev_err(isp->dev, "  data timeout");
435 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC)
436 		dev_err(isp->dev, "  unknown escape command entry");
437 	if (infos & IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC)
438 		dev_err(isp->dev, "  line sync error");
439 }
440 
441 /* Clear irq reg */
442 static void clear_irq_reg(struct atomisp_device *isp)
443 {
444 	struct pci_dev *pdev = to_pci_dev(isp->dev);
445 	u32 msg_ret;
446 
447 	pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &msg_ret);
448 	msg_ret |= 1 << INTR_IIR;
449 	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, msg_ret);
450 }
451 
452 /* interrupt handling function*/
453 irqreturn_t atomisp_isr(int irq, void *dev)
454 {
455 	struct atomisp_device *isp = (struct atomisp_device *)dev;
456 	struct atomisp_css_event eof_event;
457 	unsigned int irq_infos = 0;
458 	unsigned long flags;
459 	int err;
460 
461 	spin_lock_irqsave(&isp->lock, flags);
462 
463 	if (!isp->css_initialized) {
464 		spin_unlock_irqrestore(&isp->lock, flags);
465 		return IRQ_HANDLED;
466 	}
467 	err = atomisp_css_irq_translate(isp, &irq_infos);
468 	if (err) {
469 		spin_unlock_irqrestore(&isp->lock, flags);
470 		return IRQ_NONE;
471 	}
472 
473 	clear_irq_reg(isp);
474 
475 	if (!isp->asd.streaming)
476 		goto out_nowake;
477 
478 	if (irq_infos & IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF) {
479 		atomic_inc(&isp->asd.sof_count);
480 		atomisp_sof_event(&isp->asd);
481 
482 		/*
483 		 * If sequence_temp and sequence are the same there where no frames
484 		 * lost so we can increase sequence_temp.
485 		 * If not then processing of frame is still in progress and driver
486 		 * needs to keep old sequence_temp value.
487 		 * NOTE: There is assumption here that ISP will not start processing
488 		 * next frame from sensor before old one is completely done.
489 		 */
490 		if (atomic_read(&isp->asd.sequence) == atomic_read(&isp->asd.sequence_temp))
491 			atomic_set(&isp->asd.sequence_temp, atomic_read(&isp->asd.sof_count));
492 
493 		dev_dbg_ratelimited(isp->dev, "irq:0x%x (SOF)\n", irq_infos);
494 		irq_infos &= ~IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF;
495 	}
496 
497 	if (irq_infos & IA_CSS_IRQ_INFO_EVENTS_READY)
498 		atomic_set(&isp->asd.sequence, atomic_read(&isp->asd.sequence_temp));
499 
500 	if ((irq_infos & IA_CSS_IRQ_INFO_INPUT_SYSTEM_ERROR) ||
501 	    (irq_infos & IA_CSS_IRQ_INFO_IF_ERROR)) {
502 		/* handle mipi receiver error */
503 		u32 rx_infos;
504 		enum mipi_port_id port;
505 
506 		for (port = MIPI_PORT0_ID; port <= MIPI_PORT2_ID;
507 		     port++) {
508 			print_csi_rx_errors(port, isp);
509 			atomisp_css_rx_get_irq_info(port, &rx_infos);
510 			atomisp_css_rx_clear_irq_info(port, rx_infos);
511 		}
512 	}
513 
514 	if (irq_infos & IA_CSS_IRQ_INFO_ISYS_EVENTS_READY) {
515 		while (ia_css_dequeue_isys_event(&eof_event.event) == 0) {
516 			atomisp_eof_event(&isp->asd, eof_event.event.exp_id);
517 			dev_dbg_ratelimited(isp->dev, "ISYS event: EOF exp_id %d\n",
518 					    eof_event.event.exp_id);
519 		}
520 
521 		irq_infos &= ~IA_CSS_IRQ_INFO_ISYS_EVENTS_READY;
522 		if (irq_infos == 0)
523 			goto out_nowake;
524 	}
525 
526 	spin_unlock_irqrestore(&isp->lock, flags);
527 
528 	dev_dbg_ratelimited(isp->dev, "irq:0x%x (unhandled)\n", irq_infos);
529 
530 	return IRQ_WAKE_THREAD;
531 
532 out_nowake:
533 	spin_unlock_irqrestore(&isp->lock, flags);
534 
535 	if (irq_infos)
536 		dev_dbg_ratelimited(isp->dev, "irq:0x%x (ignored, as not streaming anymore)\n",
537 				    irq_infos);
538 
539 	return IRQ_HANDLED;
540 }
541 
542 void atomisp_clear_css_buffer_counters(struct atomisp_sub_device *asd)
543 {
544 	int i;
545 
546 	memset(asd->s3a_bufs_in_css, 0, sizeof(asd->s3a_bufs_in_css));
547 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++)
548 		memset(asd->metadata_bufs_in_css[i], 0,
549 		       sizeof(asd->metadata_bufs_in_css[i]));
550 	asd->dis_bufs_in_css = 0;
551 }
552 
553 /* 0x100000 is the start of dmem inside SP */
554 #define SP_DMEM_BASE	0x100000
555 
556 void dump_sp_dmem(struct atomisp_device *isp, unsigned int addr,
557 		  unsigned int size)
558 {
559 	unsigned int data = 0;
560 	unsigned int size32 = DIV_ROUND_UP(size, sizeof(u32));
561 
562 	dev_dbg(isp->dev, "atomisp mmio base: %p\n", isp->base);
563 	dev_dbg(isp->dev, "%s, addr:0x%x, size: %d, size32: %d\n", __func__,
564 		addr, size, size32);
565 	if (size32 * 4 + addr > 0x4000) {
566 		dev_err(isp->dev, "illegal size (%d) or addr (0x%x)\n",
567 			size32, addr);
568 		return;
569 	}
570 	addr += SP_DMEM_BASE;
571 	addr &= 0x003FFFFF;
572 	do {
573 		data = readl(isp->base + addr);
574 		dev_dbg(isp->dev, "%s, \t [0x%x]:0x%x\n", __func__, addr, data);
575 		addr += sizeof(u32);
576 	} while (--size32);
577 }
578 
579 int atomisp_buffers_in_css(struct atomisp_video_pipe *pipe)
580 {
581 	unsigned long irqflags;
582 	struct list_head *pos;
583 	int buffers_in_css = 0;
584 
585 	spin_lock_irqsave(&pipe->irq_lock, irqflags);
586 
587 	list_for_each(pos, &pipe->buffers_in_css)
588 		buffers_in_css++;
589 
590 	spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
591 
592 	return buffers_in_css;
593 }
594 
595 void atomisp_buffer_done(struct ia_css_frame *frame, enum vb2_buffer_state state)
596 {
597 	struct atomisp_video_pipe *pipe = vb_to_pipe(&frame->vb.vb2_buf);
598 
599 	lockdep_assert_held(&pipe->irq_lock);
600 
601 	frame->vb.vb2_buf.timestamp = ktime_get_ns();
602 	frame->vb.field = pipe->pix.field;
603 	frame->vb.sequence = atomic_read(&pipe->asd->sequence);
604 	list_del(&frame->queue);
605 	if (state == VB2_BUF_STATE_DONE)
606 		vb2_set_plane_payload(&frame->vb.vb2_buf, 0, pipe->pix.sizeimage);
607 	vb2_buffer_done(&frame->vb.vb2_buf, state);
608 }
609 
610 void atomisp_flush_video_pipe(struct atomisp_video_pipe *pipe, enum vb2_buffer_state state,
611 			      bool warn_on_css_frames)
612 {
613 	struct ia_css_frame *frame, *_frame;
614 	unsigned long irqflags;
615 
616 	spin_lock_irqsave(&pipe->irq_lock, irqflags);
617 
618 	list_for_each_entry_safe(frame, _frame, &pipe->buffers_in_css, queue) {
619 		if (warn_on_css_frames)
620 			dev_warn(pipe->isp->dev, "Warning: CSS frames queued on flush\n");
621 		atomisp_buffer_done(frame, state);
622 	}
623 
624 	list_for_each_entry_safe(frame, _frame, &pipe->activeq, queue)
625 		atomisp_buffer_done(frame, state);
626 
627 	list_for_each_entry_safe(frame, _frame, &pipe->buffers_waiting_for_param, queue) {
628 		pipe->frame_request_config_id[frame->vb.vb2_buf.index] = 0;
629 		atomisp_buffer_done(frame, state);
630 	}
631 
632 	spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
633 }
634 
635 /* clean out the parameters that did not apply */
636 void atomisp_flush_params_queue(struct atomisp_video_pipe *pipe)
637 {
638 	struct atomisp_css_params_with_list *param;
639 
640 	while (!list_empty(&pipe->per_frame_params)) {
641 		param = list_entry(pipe->per_frame_params.next,
642 				   struct atomisp_css_params_with_list, list);
643 		list_del(&param->list);
644 		atomisp_free_css_parameters(&param->params);
645 		kvfree(param);
646 	}
647 }
648 
649 /* Re-queue per-frame parameters */
650 static void atomisp_recover_params_queue(struct atomisp_video_pipe *pipe)
651 {
652 	struct atomisp_css_params_with_list *param;
653 	int i;
654 
655 	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
656 		param = pipe->frame_params[i];
657 		if (param)
658 			list_add_tail(&param->list, &pipe->per_frame_params);
659 		pipe->frame_params[i] = NULL;
660 	}
661 	atomisp_handle_parameter_and_buffer(pipe);
662 }
663 
664 void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
665 		      enum ia_css_buffer_type buf_type,
666 		      enum ia_css_pipe_id css_pipe_id,
667 		      bool q_buffers, enum atomisp_input_stream_id stream_id)
668 {
669 	struct atomisp_video_pipe *pipe = NULL;
670 	struct atomisp_css_buffer buffer;
671 	bool requeue = false;
672 	unsigned long irqflags;
673 	struct ia_css_frame *frame = NULL;
674 	struct atomisp_s3a_buf *s3a_buf = NULL, *_s3a_buf_tmp, *s3a_iter;
675 	struct atomisp_dis_buf *dis_buf = NULL, *_dis_buf_tmp, *dis_iter;
676 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf_tmp, *md_iter;
677 	enum atomisp_metadata_type md_type;
678 	struct atomisp_device *isp = asd->isp;
679 	struct v4l2_control ctrl;
680 	int i, err;
681 
682 	lockdep_assert_held(&isp->mutex);
683 
684 	if (
685 	    buf_type != IA_CSS_BUFFER_TYPE_METADATA &&
686 	    buf_type != IA_CSS_BUFFER_TYPE_3A_STATISTICS &&
687 	    buf_type != IA_CSS_BUFFER_TYPE_DIS_STATISTICS &&
688 	    buf_type != IA_CSS_BUFFER_TYPE_OUTPUT_FRAME &&
689 	    buf_type != IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME &&
690 	    buf_type != IA_CSS_BUFFER_TYPE_RAW_OUTPUT_FRAME &&
691 	    buf_type != IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME &&
692 	    buf_type != IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME) {
693 		dev_err(isp->dev, "%s, unsupported buffer type: %d\n",
694 			__func__, buf_type);
695 		return;
696 	}
697 
698 	memset(&buffer, 0, sizeof(struct atomisp_css_buffer));
699 	buffer.css_buffer.type = buf_type;
700 	err = atomisp_css_dequeue_buffer(asd, stream_id, css_pipe_id,
701 					 buf_type, &buffer);
702 	if (err) {
703 		dev_err(isp->dev,
704 			"atomisp_css_dequeue_buffer failed: 0x%x\n", err);
705 		return;
706 	}
707 
708 	switch (buf_type) {
709 	case IA_CSS_BUFFER_TYPE_3A_STATISTICS:
710 		list_for_each_entry_safe(s3a_iter, _s3a_buf_tmp,
711 					 &asd->s3a_stats_in_css, list) {
712 			if (s3a_iter->s3a_data ==
713 			    buffer.css_buffer.data.stats_3a) {
714 				list_del_init(&s3a_iter->list);
715 				list_add_tail(&s3a_iter->list,
716 					      &asd->s3a_stats_ready);
717 				s3a_buf = s3a_iter;
718 				break;
719 			}
720 		}
721 
722 		asd->s3a_bufs_in_css[css_pipe_id]--;
723 		atomisp_3a_stats_ready_event(asd, buffer.css_buffer.exp_id);
724 		if (s3a_buf)
725 			dev_dbg(isp->dev, "%s: s3a stat with exp_id %d is ready\n",
726 				__func__, s3a_buf->s3a_data->exp_id);
727 		else
728 			dev_dbg(isp->dev, "%s: s3a stat is ready with no exp_id found\n",
729 				__func__);
730 		break;
731 	case IA_CSS_BUFFER_TYPE_METADATA:
732 		if (error)
733 			break;
734 
735 		md_type = ATOMISP_MAIN_METADATA;
736 		list_for_each_entry_safe(md_iter, _md_buf_tmp,
737 					 &asd->metadata_in_css[md_type], list) {
738 			if (md_iter->metadata ==
739 			    buffer.css_buffer.data.metadata) {
740 				list_del_init(&md_iter->list);
741 				list_add_tail(&md_iter->list,
742 					      &asd->metadata_ready[md_type]);
743 				md_buf = md_iter;
744 				break;
745 			}
746 		}
747 		asd->metadata_bufs_in_css[stream_id][css_pipe_id]--;
748 		atomisp_metadata_ready_event(asd, md_type);
749 		if (md_buf)
750 			dev_dbg(isp->dev, "%s: metadata with exp_id %d is ready\n",
751 				__func__, md_buf->metadata->exp_id);
752 		else
753 			dev_dbg(isp->dev, "%s: metadata is ready with no exp_id found\n",
754 				__func__);
755 		break;
756 	case IA_CSS_BUFFER_TYPE_DIS_STATISTICS:
757 		list_for_each_entry_safe(dis_iter, _dis_buf_tmp,
758 					 &asd->dis_stats_in_css, list) {
759 			if (dis_iter->dis_data ==
760 			    buffer.css_buffer.data.stats_dvs) {
761 				spin_lock_irqsave(&asd->dis_stats_lock,
762 						  irqflags);
763 				list_del_init(&dis_iter->list);
764 				list_add(&dis_iter->list, &asd->dis_stats);
765 				asd->params.dis_proj_data_valid = true;
766 				spin_unlock_irqrestore(&asd->dis_stats_lock,
767 						       irqflags);
768 				dis_buf = dis_iter;
769 				break;
770 			}
771 		}
772 		asd->dis_bufs_in_css--;
773 		if (dis_buf)
774 			dev_dbg(isp->dev, "%s: dis stat with exp_id %d is ready\n",
775 				__func__, dis_buf->dis_data->exp_id);
776 		else
777 			dev_dbg(isp->dev, "%s: dis stat is ready with no exp_id found\n",
778 				__func__);
779 		break;
780 	case IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME:
781 	case IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME:
782 		frame = buffer.css_buffer.data.frame;
783 		if (!frame) {
784 			WARN_ON(1);
785 			break;
786 		}
787 		if (!frame->valid)
788 			error = true;
789 
790 		pipe = vb_to_pipe(&frame->vb.vb2_buf);
791 
792 		dev_dbg(isp->dev, "%s: vf frame with exp_id %d is ready\n",
793 			__func__, frame->exp_id);
794 		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
795 			if (frame->flash_state
796 			    == IA_CSS_FRAME_FLASH_STATE_PARTIAL)
797 				dev_dbg(isp->dev, "%s thumb partially flashed\n",
798 					__func__);
799 			else if (frame->flash_state
800 				 == IA_CSS_FRAME_FLASH_STATE_FULL)
801 				dev_dbg(isp->dev, "%s thumb completely flashed\n",
802 					__func__);
803 			else
804 				dev_dbg(isp->dev, "%s thumb no flash in this frame\n",
805 					__func__);
806 		}
807 		pipe->frame_config_id[frame->vb.vb2_buf.index] = frame->isp_config_id;
808 		break;
809 	case IA_CSS_BUFFER_TYPE_OUTPUT_FRAME:
810 	case IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME:
811 		frame = buffer.css_buffer.data.frame;
812 		if (!frame) {
813 			WARN_ON(1);
814 			break;
815 		}
816 
817 		if (!frame->valid)
818 			error = true;
819 
820 		pipe = vb_to_pipe(&frame->vb.vb2_buf);
821 
822 		dev_dbg(isp->dev, "%s: main frame with exp_id %d is ready\n",
823 			__func__, frame->exp_id);
824 
825 		i = frame->vb.vb2_buf.index;
826 
827 		/* free the parameters */
828 		if (pipe->frame_params[i]) {
829 			if (asd->params.dvs_6axis == pipe->frame_params[i]->params.dvs_6axis)
830 				asd->params.dvs_6axis = NULL;
831 			atomisp_free_css_parameters(&pipe->frame_params[i]->params);
832 			kvfree(pipe->frame_params[i]);
833 			pipe->frame_params[i] = NULL;
834 		}
835 
836 		pipe->frame_config_id[i] = frame->isp_config_id;
837 		ctrl.id = V4L2_CID_FLASH_MODE;
838 		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
839 			if (frame->flash_state == IA_CSS_FRAME_FLASH_STATE_PARTIAL) {
840 				asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_PARTIAL;
841 				dev_dbg(isp->dev, "%s partially flashed\n", __func__);
842 			} else if (frame->flash_state == IA_CSS_FRAME_FLASH_STATE_FULL) {
843 				asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
844 				asd->params.num_flash_frames--;
845 				dev_dbg(isp->dev, "%s completely flashed\n", __func__);
846 			} else {
847 				asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
848 				dev_dbg(isp->dev, "%s no flash in this frame\n", __func__);
849 			}
850 
851 			/* Check if flashing sequence is done */
852 			if (asd->frame_status[i] == ATOMISP_FRAME_STATUS_FLASH_EXPOSED)
853 				asd->params.flash_state = ATOMISP_FLASH_DONE;
854 		} else if (isp->flash) {
855 			if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl) == 0 &&
856 			    ctrl.value == ATOMISP_FLASH_MODE_TORCH) {
857 				ctrl.id = V4L2_CID_FLASH_TORCH_INTENSITY;
858 				if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl) == 0 &&
859 				    ctrl.value > 0)
860 					asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
861 				else
862 					asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
863 			} else {
864 				asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
865 			}
866 		} else {
867 			asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
868 		}
869 
870 		asd->params.last_frame_status = asd->frame_status[i];
871 
872 		if (asd->params.css_update_params_needed) {
873 			atomisp_apply_css_parameters(asd,
874 						     &asd->params.css_param);
875 			if (asd->params.css_param.update_flag.dz_config)
876 				asd->params.config.dz_config = &asd->params.css_param.dz_config;
877 			/* New global dvs 6axis config should be blocked
878 			 * here if there's a buffer with per-frame parameters
879 			 * pending in CSS frame buffer queue.
880 			 * This is to aviod zooming vibration since global
881 			 * parameters take effect immediately while
882 			 * per-frame parameters are taken after previous
883 			 * buffers in CSS got processed.
884 			 */
885 			if (asd->params.dvs_6axis)
886 				atomisp_css_set_dvs_6axis(asd,
887 							  asd->params.dvs_6axis);
888 			else
889 				asd->params.css_update_params_needed = false;
890 			/* The update flag should not be cleaned here
891 			 * since it is still going to be used to make up
892 			 * following per-frame parameters.
893 			 * This will introduce more copy work since each
894 			 * time when updating global parameters, the whole
895 			 * parameter set are applied.
896 			 * FIXME: A new set of parameter copy functions can
897 			 * be added to make up per-frame parameters based on
898 			 * solid structures stored in asd->params.css_param
899 			 * instead of using shadow pointers in update flag.
900 			 */
901 			atomisp_css_update_isp_params(asd);
902 		}
903 		break;
904 	default:
905 		break;
906 	}
907 	if (frame) {
908 		spin_lock_irqsave(&pipe->irq_lock, irqflags);
909 		atomisp_buffer_done(frame, error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
910 		spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
911 	}
912 
913 	/*
914 	 * Requeue should only be done for 3a and dis buffers.
915 	 * Queue/dequeue order will change if driver recycles image buffers.
916 	 */
917 	if (requeue) {
918 		err = atomisp_css_queue_buffer(asd,
919 					       stream_id, css_pipe_id,
920 					       buf_type, &buffer);
921 		if (err)
922 			dev_err(isp->dev, "%s, q to css fails: %d\n",
923 				__func__, err);
924 		return;
925 	}
926 	if (!error && q_buffers)
927 		atomisp_qbuffers_to_css(asd);
928 }
929 
930 void atomisp_assert_recovery_work(struct work_struct *work)
931 {
932 	struct atomisp_device *isp = container_of(work, struct atomisp_device,
933 						  assert_recovery_work);
934 	struct pci_dev *pdev = to_pci_dev(isp->dev);
935 	unsigned long flags;
936 	int ret;
937 
938 	mutex_lock(&isp->mutex);
939 
940 	if (!isp->asd.streaming)
941 		goto out_unlock;
942 
943 	atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF, false);
944 
945 	spin_lock_irqsave(&isp->lock, flags);
946 	isp->asd.streaming = false;
947 	spin_unlock_irqrestore(&isp->lock, flags);
948 
949 	/* stream off sensor */
950 	ret = v4l2_subdev_call(isp->inputs[isp->asd.input_curr].camera, video, s_stream, 0);
951 	if (ret)
952 		dev_warn(isp->dev, "Stopping sensor stream failed: %d\n", ret);
953 
954 	atomisp_clear_css_buffer_counters(&isp->asd);
955 
956 	atomisp_css_stop(&isp->asd, true);
957 
958 	isp->asd.preview_exp_id = 1;
959 	isp->asd.postview_exp_id = 1;
960 	/* notify HAL the CSS reset */
961 	dev_dbg(isp->dev, "send reset event to %s\n", isp->asd.subdev.devnode->name);
962 	atomisp_reset_event(&isp->asd);
963 
964 	/* clear irq */
965 	disable_isp_irq(hrt_isp_css_irq_sp);
966 	clear_isp_irq(hrt_isp_css_irq_sp);
967 
968 	/* Set the SRSE to 3 before resetting */
969 	pci_write_config_dword(pdev, PCI_I_CONTROL,
970 			       isp->saved_regs.i_control | MRFLD_PCI_I_CONTROL_SRSE_RESET_MASK);
971 
972 	/* reset ISP and restore its state */
973 	atomisp_reset(isp);
974 
975 	atomisp_css_input_set_mode(&isp->asd, IA_CSS_INPUT_MODE_BUFFERED_SENSOR);
976 
977 	/* Recreate streams destroyed by atomisp_css_stop() */
978 	atomisp_create_pipes_stream(&isp->asd);
979 
980 	/* Invalidate caches. FIXME: should flush only necessary buffers */
981 	wbinvd();
982 
983 	if (atomisp_css_start(&isp->asd)) {
984 		dev_warn(isp->dev, "start SP failed, so do not set streaming to be enable!\n");
985 	} else {
986 		spin_lock_irqsave(&isp->lock, flags);
987 		isp->asd.streaming = true;
988 		spin_unlock_irqrestore(&isp->lock, flags);
989 	}
990 
991 	atomisp_csi2_configure(&isp->asd);
992 
993 	atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF,
994 			       atomisp_css_valid_sof(isp));
995 
996 	if (atomisp_freq_scaling(isp, ATOMISP_DFS_MODE_AUTO, true) < 0)
997 		dev_dbg(isp->dev, "DFS auto failed while recovering!\n");
998 
999 	/* Dequeueing buffers is not needed, CSS will recycle buffers that it has */
1000 	atomisp_flush_video_pipe(&isp->asd.video_out, VB2_BUF_STATE_ERROR, false);
1001 
1002 	/* Requeue unprocessed per-frame parameters. */
1003 	atomisp_recover_params_queue(&isp->asd.video_out);
1004 
1005 	ret = v4l2_subdev_call(isp->inputs[isp->asd.input_curr].camera, video, s_stream, 1);
1006 	if (ret)
1007 		dev_err(isp->dev, "Starting sensor stream failed: %d\n", ret);
1008 
1009 out_unlock:
1010 	mutex_unlock(&isp->mutex);
1011 }
1012 
1013 void atomisp_setup_flash(struct atomisp_sub_device *asd)
1014 {
1015 	struct atomisp_device *isp = asd->isp;
1016 	struct v4l2_control ctrl;
1017 
1018 	if (!isp->flash)
1019 		return;
1020 
1021 	if (asd->params.flash_state != ATOMISP_FLASH_REQUESTED &&
1022 	    asd->params.flash_state != ATOMISP_FLASH_DONE)
1023 		return;
1024 
1025 	if (asd->params.num_flash_frames) {
1026 		/* make sure the timeout is set before setting flash mode */
1027 		ctrl.id = V4L2_CID_FLASH_TIMEOUT;
1028 		ctrl.value = FLASH_TIMEOUT;
1029 
1030 		if (v4l2_s_ctrl(NULL, isp->flash->ctrl_handler, &ctrl)) {
1031 			dev_err(isp->dev, "flash timeout configure failed\n");
1032 			return;
1033 		}
1034 
1035 		ia_css_stream_request_flash(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream);
1036 
1037 		asd->params.flash_state = ATOMISP_FLASH_ONGOING;
1038 	} else {
1039 		asd->params.flash_state = ATOMISP_FLASH_IDLE;
1040 	}
1041 }
1042 
1043 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
1044 {
1045 	struct atomisp_device *isp = isp_ptr;
1046 	unsigned long flags;
1047 
1048 	dev_dbg(isp->dev, ">%s\n", __func__);
1049 
1050 	spin_lock_irqsave(&isp->lock, flags);
1051 
1052 	if (!isp->asd.streaming) {
1053 		spin_unlock_irqrestore(&isp->lock, flags);
1054 		return IRQ_HANDLED;
1055 	}
1056 
1057 	spin_unlock_irqrestore(&isp->lock, flags);
1058 
1059 	/*
1060 	 * The standard CSS2.0 API tells the following calling sequence of
1061 	 * dequeue ready buffers:
1062 	 * while (ia_css_dequeue_psys_event(...)) {
1063 	 *	switch (event.type) {
1064 	 *	...
1065 	 *	ia_css_pipe_dequeue_buffer()
1066 	 *	}
1067 	 * }
1068 	 * That is, dequeue event and buffer are one after another.
1069 	 *
1070 	 * But the following implementation is to first deuque all the event
1071 	 * to a FIFO, then process the event in the FIFO.
1072 	 * This will not have issue in single stream mode, but it do have some
1073 	 * issue in multiple stream case. The issue is that
1074 	 * ia_css_pipe_dequeue_buffer() will not return the corrent buffer in
1075 	 * a specific pipe.
1076 	 *
1077 	 * This is due to ia_css_pipe_dequeue_buffer() does not take the
1078 	 * ia_css_pipe parameter.
1079 	 *
1080 	 * So:
1081 	 * For CSS2.0: we change the way to not dequeue all the event at one
1082 	 * time, instead, dequue one and process one, then another
1083 	 */
1084 	mutex_lock(&isp->mutex);
1085 	if (atomisp_css_isr_thread(isp))
1086 		goto out;
1087 
1088 	if (isp->asd.streaming)
1089 		atomisp_setup_flash(&isp->asd);
1090 out:
1091 	mutex_unlock(&isp->mutex);
1092 	dev_dbg(isp->dev, "<%s\n", __func__);
1093 
1094 	return IRQ_HANDLED;
1095 }
1096 
1097 /*
1098  * Get internal fmt according to V4L2 fmt
1099  */
1100 static enum ia_css_frame_format
1101 v4l2_fmt_to_sh_fmt(u32 fmt)
1102 {
1103 	switch (fmt) {
1104 	case V4L2_PIX_FMT_YUV420:
1105 				return IA_CSS_FRAME_FORMAT_YUV420;
1106 	case V4L2_PIX_FMT_YVU420:
1107 		return IA_CSS_FRAME_FORMAT_YV12;
1108 	case V4L2_PIX_FMT_YUV422P:
1109 		return IA_CSS_FRAME_FORMAT_YUV422;
1110 	case V4L2_PIX_FMT_YUV444:
1111 		return IA_CSS_FRAME_FORMAT_YUV444;
1112 	case V4L2_PIX_FMT_NV12:
1113 		return IA_CSS_FRAME_FORMAT_NV12;
1114 	case V4L2_PIX_FMT_NV21:
1115 		return IA_CSS_FRAME_FORMAT_NV21;
1116 	case V4L2_PIX_FMT_NV16:
1117 		return IA_CSS_FRAME_FORMAT_NV16;
1118 	case V4L2_PIX_FMT_NV61:
1119 		return IA_CSS_FRAME_FORMAT_NV61;
1120 	case V4L2_PIX_FMT_UYVY:
1121 		return IA_CSS_FRAME_FORMAT_UYVY;
1122 	case V4L2_PIX_FMT_YUYV:
1123 		return IA_CSS_FRAME_FORMAT_YUYV;
1124 	case V4L2_PIX_FMT_RGB24:
1125 		return IA_CSS_FRAME_FORMAT_PLANAR_RGB888;
1126 	case V4L2_PIX_FMT_RGB32:
1127 		return IA_CSS_FRAME_FORMAT_RGBA888;
1128 	case V4L2_PIX_FMT_RGB565:
1129 		return IA_CSS_FRAME_FORMAT_RGB565;
1130 #if 0
1131 	case V4L2_PIX_FMT_JPEG:
1132 	case V4L2_PIX_FMT_CUSTOM_M10MO_RAW:
1133 		return IA_CSS_FRAME_FORMAT_BINARY_8;
1134 #endif
1135 	case V4L2_PIX_FMT_SBGGR16:
1136 	case V4L2_PIX_FMT_SBGGR10:
1137 	case V4L2_PIX_FMT_SGBRG10:
1138 	case V4L2_PIX_FMT_SGRBG10:
1139 	case V4L2_PIX_FMT_SRGGB10:
1140 	case V4L2_PIX_FMT_SBGGR12:
1141 	case V4L2_PIX_FMT_SGBRG12:
1142 	case V4L2_PIX_FMT_SGRBG12:
1143 	case V4L2_PIX_FMT_SRGGB12:
1144 	case V4L2_PIX_FMT_SBGGR8:
1145 	case V4L2_PIX_FMT_SGBRG8:
1146 	case V4L2_PIX_FMT_SGRBG8:
1147 	case V4L2_PIX_FMT_SRGGB8:
1148 		return IA_CSS_FRAME_FORMAT_RAW;
1149 	default:
1150 		return -EINVAL;
1151 	}
1152 }
1153 
1154 /*
1155  * raw format match between SH format and V4L2 format
1156  */
1157 static int raw_output_format_match_input(u32 input, u32 output)
1158 {
1159 	if ((input == ATOMISP_INPUT_FORMAT_RAW_12) &&
1160 	    ((output == V4L2_PIX_FMT_SRGGB12) ||
1161 	     (output == V4L2_PIX_FMT_SGRBG12) ||
1162 	     (output == V4L2_PIX_FMT_SBGGR12) ||
1163 	     (output == V4L2_PIX_FMT_SGBRG12)))
1164 		return 0;
1165 
1166 	if ((input == ATOMISP_INPUT_FORMAT_RAW_10) &&
1167 	    ((output == V4L2_PIX_FMT_SRGGB10) ||
1168 	     (output == V4L2_PIX_FMT_SGRBG10) ||
1169 	     (output == V4L2_PIX_FMT_SBGGR10) ||
1170 	     (output == V4L2_PIX_FMT_SGBRG10)))
1171 		return 0;
1172 
1173 	if ((input == ATOMISP_INPUT_FORMAT_RAW_8) &&
1174 	    ((output == V4L2_PIX_FMT_SRGGB8) ||
1175 	     (output == V4L2_PIX_FMT_SGRBG8) ||
1176 	     (output == V4L2_PIX_FMT_SBGGR8) ||
1177 	     (output == V4L2_PIX_FMT_SGBRG8)))
1178 		return 0;
1179 
1180 	if ((input == ATOMISP_INPUT_FORMAT_RAW_16) && (output == V4L2_PIX_FMT_SBGGR16))
1181 		return 0;
1182 
1183 	return -EINVAL;
1184 }
1185 
1186 u32 atomisp_get_pixel_depth(u32 pixelformat)
1187 {
1188 	switch (pixelformat) {
1189 	case V4L2_PIX_FMT_YUV420:
1190 	case V4L2_PIX_FMT_NV12:
1191 	case V4L2_PIX_FMT_NV21:
1192 	case V4L2_PIX_FMT_YVU420:
1193 		return 12;
1194 	case V4L2_PIX_FMT_YUV422P:
1195 	case V4L2_PIX_FMT_YUYV:
1196 	case V4L2_PIX_FMT_UYVY:
1197 	case V4L2_PIX_FMT_NV16:
1198 	case V4L2_PIX_FMT_NV61:
1199 	case V4L2_PIX_FMT_RGB565:
1200 	case V4L2_PIX_FMT_SBGGR16:
1201 	case V4L2_PIX_FMT_SBGGR12:
1202 	case V4L2_PIX_FMT_SGBRG12:
1203 	case V4L2_PIX_FMT_SGRBG12:
1204 	case V4L2_PIX_FMT_SRGGB12:
1205 	case V4L2_PIX_FMT_SBGGR10:
1206 	case V4L2_PIX_FMT_SGBRG10:
1207 	case V4L2_PIX_FMT_SGRBG10:
1208 	case V4L2_PIX_FMT_SRGGB10:
1209 		return 16;
1210 	case V4L2_PIX_FMT_RGB24:
1211 	case V4L2_PIX_FMT_YUV444:
1212 		return 24;
1213 	case V4L2_PIX_FMT_RGB32:
1214 		return 32;
1215 	case V4L2_PIX_FMT_JPEG:
1216 	case V4L2_PIX_FMT_CUSTOM_M10MO_RAW:
1217 	case V4L2_PIX_FMT_SBGGR8:
1218 	case V4L2_PIX_FMT_SGBRG8:
1219 	case V4L2_PIX_FMT_SGRBG8:
1220 	case V4L2_PIX_FMT_SRGGB8:
1221 		return 8;
1222 	default:
1223 		return 8 * 2;	/* raw type now */
1224 	}
1225 }
1226 
1227 bool atomisp_is_mbuscode_raw(uint32_t code)
1228 {
1229 	return code >= 0x3000 && code < 0x4000;
1230 }
1231 
1232 /*
1233  * ISP features control function
1234  */
1235 
1236 /*
1237  * Set ISP capture mode based on current settings
1238  */
1239 static void atomisp_update_capture_mode(struct atomisp_sub_device *asd)
1240 {
1241 	if (asd->params.gdc_cac_en)
1242 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_ADVANCED);
1243 	else if (asd->params.low_light)
1244 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_LOW_LIGHT);
1245 	else if (asd->video_out.sh_fmt == IA_CSS_FRAME_FORMAT_RAW)
1246 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_RAW);
1247 	else
1248 		atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_PRIMARY);
1249 }
1250 
1251 /*
1252  * Function to enable/disable lens geometry distortion correction (GDC) and
1253  * chromatic aberration correction (CAC)
1254  */
1255 int atomisp_gdc_cac(struct atomisp_sub_device *asd, int flag,
1256 		    __s32 *value)
1257 {
1258 	if (flag == 0) {
1259 		*value = asd->params.gdc_cac_en;
1260 		return 0;
1261 	}
1262 
1263 	asd->params.gdc_cac_en = !!*value;
1264 	if (asd->params.gdc_cac_en) {
1265 		asd->params.config.morph_table = asd->params.css_param.morph_table;
1266 	} else {
1267 		asd->params.config.morph_table = NULL;
1268 	}
1269 	asd->params.css_update_params_needed = true;
1270 	atomisp_update_capture_mode(asd);
1271 	return 0;
1272 }
1273 
1274 /*
1275  * Function to enable/disable low light mode including ANR
1276  */
1277 int atomisp_low_light(struct atomisp_sub_device *asd, int flag,
1278 		      __s32 *value)
1279 {
1280 	if (flag == 0) {
1281 		*value = asd->params.low_light;
1282 		return 0;
1283 	}
1284 
1285 	asd->params.low_light = (*value != 0);
1286 	atomisp_update_capture_mode(asd);
1287 	return 0;
1288 }
1289 
1290 /*
1291  * Function to enable/disable extra noise reduction (XNR) in low light
1292  * condition
1293  */
1294 int atomisp_xnr(struct atomisp_sub_device *asd, int flag,
1295 		int *xnr_enable)
1296 {
1297 	if (flag == 0) {
1298 		*xnr_enable = asd->params.xnr_en;
1299 		return 0;
1300 	}
1301 
1302 	atomisp_css_capture_enable_xnr(asd, !!*xnr_enable);
1303 
1304 	return 0;
1305 }
1306 
1307 /*
1308  * Function to configure bayer noise reduction
1309  */
1310 int atomisp_nr(struct atomisp_sub_device *asd, int flag,
1311 	       struct atomisp_nr_config *arg)
1312 {
1313 	if (flag == 0) {
1314 		/* Get nr config from current setup */
1315 		if (atomisp_css_get_nr_config(asd, arg))
1316 			return -EINVAL;
1317 	} else {
1318 		/* Set nr config to isp parameters */
1319 		memcpy(&asd->params.css_param.nr_config, arg,
1320 		       sizeof(struct ia_css_nr_config));
1321 		asd->params.config.nr_config = &asd->params.css_param.nr_config;
1322 		asd->params.css_update_params_needed = true;
1323 	}
1324 	return 0;
1325 }
1326 
1327 /*
1328  * Function to configure temporal noise reduction (TNR)
1329  */
1330 int atomisp_tnr(struct atomisp_sub_device *asd, int flag,
1331 		struct atomisp_tnr_config *config)
1332 {
1333 	/* Get tnr config from current setup */
1334 	if (flag == 0) {
1335 		/* Get tnr config from current setup */
1336 		if (atomisp_css_get_tnr_config(asd, config))
1337 			return -EINVAL;
1338 	} else {
1339 		/* Set tnr config to isp parameters */
1340 		memcpy(&asd->params.css_param.tnr_config, config,
1341 		       sizeof(struct ia_css_tnr_config));
1342 		asd->params.config.tnr_config = &asd->params.css_param.tnr_config;
1343 		asd->params.css_update_params_needed = true;
1344 	}
1345 
1346 	return 0;
1347 }
1348 
1349 /*
1350  * Function to configure black level compensation
1351  */
1352 int atomisp_black_level(struct atomisp_sub_device *asd, int flag,
1353 			struct atomisp_ob_config *config)
1354 {
1355 	if (flag == 0) {
1356 		/* Get ob config from current setup */
1357 		if (atomisp_css_get_ob_config(asd, config))
1358 			return -EINVAL;
1359 	} else {
1360 		/* Set ob config to isp parameters */
1361 		memcpy(&asd->params.css_param.ob_config, config,
1362 		       sizeof(struct ia_css_ob_config));
1363 		asd->params.config.ob_config = &asd->params.css_param.ob_config;
1364 		asd->params.css_update_params_needed = true;
1365 	}
1366 
1367 	return 0;
1368 }
1369 
1370 /*
1371  * Function to configure edge enhancement
1372  */
1373 int atomisp_ee(struct atomisp_sub_device *asd, int flag,
1374 	       struct atomisp_ee_config *config)
1375 {
1376 	if (flag == 0) {
1377 		/* Get ee config from current setup */
1378 		if (atomisp_css_get_ee_config(asd, config))
1379 			return -EINVAL;
1380 	} else {
1381 		/* Set ee config to isp parameters */
1382 		memcpy(&asd->params.css_param.ee_config, config,
1383 		       sizeof(asd->params.css_param.ee_config));
1384 		asd->params.config.ee_config = &asd->params.css_param.ee_config;
1385 		asd->params.css_update_params_needed = true;
1386 	}
1387 
1388 	return 0;
1389 }
1390 
1391 /*
1392  * Function to update Gamma table for gamma, brightness and contrast config
1393  */
1394 int atomisp_gamma(struct atomisp_sub_device *asd, int flag,
1395 		  struct atomisp_gamma_table *config)
1396 {
1397 	if (flag == 0) {
1398 		/* Get gamma table from current setup */
1399 		if (atomisp_css_get_gamma_table(asd, config))
1400 			return -EINVAL;
1401 	} else {
1402 		/* Set gamma table to isp parameters */
1403 		memcpy(&asd->params.css_param.gamma_table, config,
1404 		       sizeof(asd->params.css_param.gamma_table));
1405 		asd->params.config.gamma_table = &asd->params.css_param.gamma_table;
1406 	}
1407 
1408 	return 0;
1409 }
1410 
1411 /*
1412  * Function to update Ctc table for Chroma Enhancement
1413  */
1414 int atomisp_ctc(struct atomisp_sub_device *asd, int flag,
1415 		struct atomisp_ctc_table *config)
1416 {
1417 	if (flag == 0) {
1418 		/* Get ctc table from current setup */
1419 		if (atomisp_css_get_ctc_table(asd, config))
1420 			return -EINVAL;
1421 	} else {
1422 		/* Set ctc table to isp parameters */
1423 		memcpy(&asd->params.css_param.ctc_table, config,
1424 		       sizeof(asd->params.css_param.ctc_table));
1425 		atomisp_css_set_ctc_table(asd, &asd->params.css_param.ctc_table);
1426 	}
1427 
1428 	return 0;
1429 }
1430 
1431 /*
1432  * Function to update gamma correction parameters
1433  */
1434 int atomisp_gamma_correction(struct atomisp_sub_device *asd, int flag,
1435 			     struct atomisp_gc_config *config)
1436 {
1437 	if (flag == 0) {
1438 		/* Get gamma correction params from current setup */
1439 		if (atomisp_css_get_gc_config(asd, config))
1440 			return -EINVAL;
1441 	} else {
1442 		/* Set gamma correction params to isp parameters */
1443 		memcpy(&asd->params.css_param.gc_config, config,
1444 		       sizeof(asd->params.css_param.gc_config));
1445 		asd->params.config.gc_config = &asd->params.css_param.gc_config;
1446 		asd->params.css_update_params_needed = true;
1447 	}
1448 
1449 	return 0;
1450 }
1451 
1452 /*
1453  * Function to update narrow gamma flag
1454  */
1455 int atomisp_formats(struct atomisp_sub_device *asd, int flag,
1456 		    struct atomisp_formats_config *config)
1457 {
1458 	if (flag == 0) {
1459 		/* Get narrow gamma flag from current setup */
1460 		if (atomisp_css_get_formats_config(asd, config))
1461 			return -EINVAL;
1462 	} else {
1463 		/* Set narrow gamma flag to isp parameters */
1464 		memcpy(&asd->params.css_param.formats_config, config,
1465 		       sizeof(asd->params.css_param.formats_config));
1466 		asd->params.config.formats_config = &asd->params.css_param.formats_config;
1467 	}
1468 
1469 	return 0;
1470 }
1471 
1472 void atomisp_free_internal_buffers(struct atomisp_sub_device *asd)
1473 {
1474 	atomisp_free_css_parameters(&asd->params.css_param);
1475 }
1476 
1477 static void atomisp_update_grid_info(struct atomisp_sub_device *asd,
1478 				     enum ia_css_pipe_id pipe_id)
1479 {
1480 	struct atomisp_device *isp = asd->isp;
1481 	int err;
1482 
1483 	if (atomisp_css_get_grid_info(asd, pipe_id))
1484 		return;
1485 
1486 	/* We must free all buffers because they no longer match
1487 	   the grid size. */
1488 	atomisp_css_free_stat_buffers(asd);
1489 
1490 	err = atomisp_alloc_css_stat_bufs(asd, ATOMISP_INPUT_STREAM_GENERAL);
1491 	if (err) {
1492 		dev_err(isp->dev, "stat_buf allocate error\n");
1493 		goto err;
1494 	}
1495 
1496 	if (atomisp_alloc_3a_output_buf(asd)) {
1497 		/* Failure for 3A buffers does not influence DIS buffers */
1498 		if (asd->params.s3a_output_bytes != 0) {
1499 			/* For SOC sensor happens s3a_output_bytes == 0,
1500 			 * using if condition to exclude false error log */
1501 			dev_err(isp->dev, "Failed to allocate memory for 3A statistics\n");
1502 		}
1503 		goto err;
1504 	}
1505 
1506 	if (atomisp_alloc_dis_coef_buf(asd)) {
1507 		dev_err(isp->dev,
1508 			"Failed to allocate memory for DIS statistics\n");
1509 		goto err;
1510 	}
1511 
1512 	if (atomisp_alloc_metadata_output_buf(asd)) {
1513 		dev_err(isp->dev, "Failed to allocate memory for metadata\n");
1514 		goto err;
1515 	}
1516 
1517 	return;
1518 
1519 err:
1520 	atomisp_css_free_stat_buffers(asd);
1521 	return;
1522 }
1523 
1524 static void atomisp_curr_user_grid_info(struct atomisp_sub_device *asd,
1525 					struct atomisp_grid_info *info)
1526 {
1527 	memcpy(info, &asd->params.curr_grid_info.s3a_grid,
1528 	       sizeof(struct ia_css_3a_grid_info));
1529 }
1530 
1531 int atomisp_compare_grid(struct atomisp_sub_device *asd,
1532 			 struct atomisp_grid_info *atomgrid)
1533 {
1534 	struct atomisp_grid_info tmp = {0};
1535 
1536 	atomisp_curr_user_grid_info(asd, &tmp);
1537 	return memcmp(atomgrid, &tmp, sizeof(tmp));
1538 }
1539 
1540 /*
1541  * Function to update Gdc table for gdc
1542  */
1543 int atomisp_gdc_cac_table(struct atomisp_sub_device *asd, int flag,
1544 			  struct atomisp_morph_table *config)
1545 {
1546 	int ret;
1547 	int i;
1548 	struct atomisp_device *isp = asd->isp;
1549 
1550 	if (flag == 0) {
1551 		/* Get gdc table from current setup */
1552 		struct ia_css_morph_table tab = {0};
1553 
1554 		atomisp_css_get_morph_table(asd, &tab);
1555 
1556 		config->width = tab.width;
1557 		config->height = tab.height;
1558 
1559 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
1560 			ret = copy_to_user(config->coordinates_x[i],
1561 					   tab.coordinates_x[i], tab.height *
1562 					   tab.width * sizeof(*tab.coordinates_x[i]));
1563 			if (ret) {
1564 				dev_err(isp->dev,
1565 					"Failed to copy to User for x\n");
1566 				return -EFAULT;
1567 			}
1568 			ret = copy_to_user(config->coordinates_y[i],
1569 					   tab.coordinates_y[i], tab.height *
1570 					   tab.width * sizeof(*tab.coordinates_y[i]));
1571 			if (ret) {
1572 				dev_err(isp->dev,
1573 					"Failed to copy to User for y\n");
1574 				return -EFAULT;
1575 			}
1576 		}
1577 	} else {
1578 		struct ia_css_morph_table *tab =
1579 			    asd->params.css_param.morph_table;
1580 
1581 		/* free first if we have one */
1582 		if (tab) {
1583 			atomisp_css_morph_table_free(tab);
1584 			asd->params.css_param.morph_table = NULL;
1585 		}
1586 
1587 		/* allocate new one */
1588 		tab = atomisp_css_morph_table_allocate(config->width,
1589 						       config->height);
1590 
1591 		if (!tab) {
1592 			dev_err(isp->dev, "out of memory\n");
1593 			return -EINVAL;
1594 		}
1595 
1596 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
1597 			ret = copy_from_user(tab->coordinates_x[i],
1598 					     config->coordinates_x[i],
1599 					     config->height * config->width *
1600 					     sizeof(*config->coordinates_x[i]));
1601 			if (ret) {
1602 				dev_err(isp->dev,
1603 					"Failed to copy from User for x, ret %d\n",
1604 					ret);
1605 				atomisp_css_morph_table_free(tab);
1606 				return -EFAULT;
1607 			}
1608 			ret = copy_from_user(tab->coordinates_y[i],
1609 					     config->coordinates_y[i],
1610 					     config->height * config->width *
1611 					     sizeof(*config->coordinates_y[i]));
1612 			if (ret) {
1613 				dev_err(isp->dev,
1614 					"Failed to copy from User for y, ret is %d\n",
1615 					ret);
1616 				atomisp_css_morph_table_free(tab);
1617 				return -EFAULT;
1618 			}
1619 		}
1620 		asd->params.css_param.morph_table = tab;
1621 		if (asd->params.gdc_cac_en)
1622 			asd->params.config.morph_table = tab;
1623 	}
1624 
1625 	return 0;
1626 }
1627 
1628 int atomisp_macc_table(struct atomisp_sub_device *asd, int flag,
1629 		       struct atomisp_macc_config *config)
1630 {
1631 	struct ia_css_macc_table *macc_table;
1632 
1633 	switch (config->color_effect) {
1634 	case V4L2_COLORFX_NONE:
1635 		macc_table = &asd->params.css_param.macc_table;
1636 		break;
1637 	case V4L2_COLORFX_SKY_BLUE:
1638 		macc_table = &blue_macc_table;
1639 		break;
1640 	case V4L2_COLORFX_GRASS_GREEN:
1641 		macc_table = &green_macc_table;
1642 		break;
1643 	case V4L2_COLORFX_SKIN_WHITEN_LOW:
1644 		macc_table = &skin_low_macc_table;
1645 		break;
1646 	case V4L2_COLORFX_SKIN_WHITEN:
1647 		macc_table = &skin_medium_macc_table;
1648 		break;
1649 	case V4L2_COLORFX_SKIN_WHITEN_HIGH:
1650 		macc_table = &skin_high_macc_table;
1651 		break;
1652 	default:
1653 		return -EINVAL;
1654 	}
1655 
1656 	if (flag == 0) {
1657 		/* Get macc table from current setup */
1658 		memcpy(&config->table, macc_table,
1659 		       sizeof(struct ia_css_macc_table));
1660 	} else {
1661 		memcpy(macc_table, &config->table,
1662 		       sizeof(struct ia_css_macc_table));
1663 		if (config->color_effect == asd->params.color_effect)
1664 			asd->params.config.macc_table = macc_table;
1665 	}
1666 
1667 	return 0;
1668 }
1669 
1670 int atomisp_set_dis_vector(struct atomisp_sub_device *asd,
1671 			   struct atomisp_dis_vector *vector)
1672 {
1673 	atomisp_css_video_set_dis_vector(asd, vector);
1674 
1675 	asd->params.dis_proj_data_valid = false;
1676 	asd->params.css_update_params_needed = true;
1677 	return 0;
1678 }
1679 
1680 /*
1681  * Function to set/get image stablization statistics
1682  */
1683 int atomisp_get_dis_stat(struct atomisp_sub_device *asd,
1684 			 struct atomisp_dis_statistics *stats)
1685 {
1686 	return atomisp_css_get_dis_stat(asd, stats);
1687 }
1688 
1689 /*
1690  * Function  set camrea_prefiles.xml current sensor pixel array size
1691  */
1692 int atomisp_set_array_res(struct atomisp_sub_device *asd,
1693 			  struct atomisp_resolution  *config)
1694 {
1695 	dev_dbg(asd->isp->dev, ">%s start\n", __func__);
1696 	if (!config) {
1697 		dev_err(asd->isp->dev, "Set sensor array size is not valid\n");
1698 		return -EINVAL;
1699 	}
1700 
1701 	asd->sensor_array_res.width = config->width;
1702 	asd->sensor_array_res.height = config->height;
1703 	return 0;
1704 }
1705 
1706 /*
1707  * Function to get DVS2 BQ resolution settings
1708  */
1709 int atomisp_get_dvs2_bq_resolutions(struct atomisp_sub_device *asd,
1710 				    struct atomisp_dvs2_bq_resolutions *bq_res)
1711 {
1712 	struct ia_css_pipe_config *pipe_cfg = NULL;
1713 
1714 	struct ia_css_stream *stream =
1715 		    asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream;
1716 	if (!stream) {
1717 		dev_warn(asd->isp->dev, "stream is not created");
1718 		return -EAGAIN;
1719 	}
1720 
1721 	pipe_cfg = &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL]
1722 		   .pipe_configs[IA_CSS_PIPE_ID_VIDEO];
1723 
1724 	if (!bq_res)
1725 		return -EINVAL;
1726 
1727 	/* the GDC output resolution */
1728 	bq_res->output_bq.width_bq = pipe_cfg->output_info[0].res.width / 2;
1729 	bq_res->output_bq.height_bq = pipe_cfg->output_info[0].res.height / 2;
1730 
1731 	bq_res->envelope_bq.width_bq = 0;
1732 	bq_res->envelope_bq.height_bq = 0;
1733 	/* the GDC input resolution */
1734 	bq_res->source_bq.width_bq = bq_res->output_bq.width_bq +
1735 				     pipe_cfg->dvs_envelope.width / 2;
1736 	bq_res->source_bq.height_bq = bq_res->output_bq.height_bq +
1737 				      pipe_cfg->dvs_envelope.height / 2;
1738 	/*
1739 	 * Bad pixels caused by spatial filter processing
1740 	 * ISP filter resolution should be given by CSS/FW, but for now
1741 	 * there is not such API to query, and it is fixed value, so
1742 	 * hardcoded here.
1743 	 */
1744 	bq_res->ispfilter_bq.width_bq = 12 / 2;
1745 	bq_res->ispfilter_bq.height_bq = 12 / 2;
1746 	/* spatial filter shift, always 4 pixels */
1747 	bq_res->gdc_shift_bq.width_bq = 4 / 2;
1748 	bq_res->gdc_shift_bq.height_bq = 4 / 2;
1749 
1750 	if (asd->params.video_dis_en) {
1751 		bq_res->envelope_bq.width_bq = pipe_cfg->dvs_envelope.width / 2 -
1752 					       bq_res->ispfilter_bq.width_bq;
1753 		bq_res->envelope_bq.height_bq = pipe_cfg->dvs_envelope.height / 2 -
1754 						bq_res->ispfilter_bq.height_bq;
1755 	}
1756 
1757 	dev_dbg(asd->isp->dev,
1758 		"source_bq.width_bq %d, source_bq.height_bq %d,\nispfilter_bq.width_bq %d, ispfilter_bq.height_bq %d,\ngdc_shift_bq.width_bq %d, gdc_shift_bq.height_bq %d,\nenvelope_bq.width_bq %d, envelope_bq.height_bq %d,\noutput_bq.width_bq %d, output_bq.height_bq %d\n",
1759 		bq_res->source_bq.width_bq, bq_res->source_bq.height_bq,
1760 		bq_res->ispfilter_bq.width_bq, bq_res->ispfilter_bq.height_bq,
1761 		bq_res->gdc_shift_bq.width_bq, bq_res->gdc_shift_bq.height_bq,
1762 		bq_res->envelope_bq.width_bq, bq_res->envelope_bq.height_bq,
1763 		bq_res->output_bq.width_bq, bq_res->output_bq.height_bq);
1764 
1765 	return 0;
1766 }
1767 
1768 int atomisp_set_dis_coefs(struct atomisp_sub_device *asd,
1769 			  struct atomisp_dis_coefficients *coefs)
1770 {
1771 	return atomisp_css_set_dis_coefs(asd, coefs);
1772 }
1773 
1774 /*
1775  * Function to set/get 3A stat from isp
1776  */
1777 int atomisp_3a_stat(struct atomisp_sub_device *asd, int flag,
1778 		    struct atomisp_3a_statistics *config)
1779 {
1780 	struct atomisp_device *isp = asd->isp;
1781 	struct atomisp_s3a_buf *s3a_buf;
1782 	unsigned long ret;
1783 
1784 	if (flag != 0)
1785 		return -EINVAL;
1786 
1787 	/* sanity check to avoid writing into unallocated memory. */
1788 	if (asd->params.s3a_output_bytes == 0)
1789 		return -EINVAL;
1790 
1791 	if (atomisp_compare_grid(asd, &config->grid_info) != 0) {
1792 		/* If the grid info in the argument differs from the current
1793 		   grid info, we tell the caller to reset the grid size and
1794 		   try again. */
1795 		return -EAGAIN;
1796 	}
1797 
1798 	if (list_empty(&asd->s3a_stats_ready)) {
1799 		dev_err(isp->dev, "3a statistics is not valid.\n");
1800 		return -EAGAIN;
1801 	}
1802 
1803 	s3a_buf = list_entry(asd->s3a_stats_ready.next,
1804 			     struct atomisp_s3a_buf, list);
1805 	if (s3a_buf->s3a_map)
1806 		ia_css_translate_3a_statistics(
1807 		    asd->params.s3a_user_stat, s3a_buf->s3a_map);
1808 	else
1809 		ia_css_get_3a_statistics(asd->params.s3a_user_stat,
1810 					 s3a_buf->s3a_data);
1811 
1812 	config->exp_id = s3a_buf->s3a_data->exp_id;
1813 	config->isp_config_id = s3a_buf->s3a_data->isp_config_id;
1814 
1815 	ret = copy_to_user(config->data, asd->params.s3a_user_stat->data,
1816 			   asd->params.s3a_output_bytes);
1817 	if (ret) {
1818 		dev_err(isp->dev, "copy to user failed: copied %lu bytes\n",
1819 			ret);
1820 		return -EFAULT;
1821 	}
1822 
1823 	/* Move to free buffer list */
1824 	list_del_init(&s3a_buf->list);
1825 	list_add_tail(&s3a_buf->list, &asd->s3a_stats);
1826 	dev_dbg(isp->dev, "%s: finish getting exp_id %d 3a stat, isp_config_id %d\n",
1827 		__func__,
1828 		config->exp_id, config->isp_config_id);
1829 	return 0;
1830 }
1831 
1832 /*
1833  * Function to calculate real zoom region for every pipe
1834  */
1835 int atomisp_calculate_real_zoom_region(struct atomisp_sub_device *asd,
1836 				       struct ia_css_dz_config   *dz_config,
1837 				       enum ia_css_pipe_id css_pipe_id)
1838 
1839 {
1840 	struct atomisp_stream_env *stream_env =
1841 		    &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL];
1842 	struct atomisp_resolution  eff_res, out_res;
1843 	int w_offset, h_offset;
1844 
1845 	memset(&eff_res, 0, sizeof(eff_res));
1846 	memset(&out_res, 0, sizeof(out_res));
1847 
1848 	if (dz_config->dx || dz_config->dy)
1849 		return 0;
1850 
1851 	if (css_pipe_id != IA_CSS_PIPE_ID_PREVIEW
1852 	    && css_pipe_id != IA_CSS_PIPE_ID_CAPTURE) {
1853 		dev_err(asd->isp->dev, "%s the set pipe no support crop region"
1854 			, __func__);
1855 		return -EINVAL;
1856 	}
1857 
1858 	eff_res.width =
1859 	    stream_env->stream_config.input_config.effective_res.width;
1860 	eff_res.height =
1861 	    stream_env->stream_config.input_config.effective_res.height;
1862 	if (eff_res.width == 0 || eff_res.height == 0) {
1863 		dev_err(asd->isp->dev, "%s err effective resolution"
1864 			, __func__);
1865 		return -EINVAL;
1866 	}
1867 
1868 	if (dz_config->zoom_region.resolution.width
1869 	    == asd->sensor_array_res.width
1870 	    || dz_config->zoom_region.resolution.height
1871 	    == asd->sensor_array_res.height) {
1872 		/*no need crop region*/
1873 		dz_config->zoom_region.origin.x = 0;
1874 		dz_config->zoom_region.origin.y = 0;
1875 		dz_config->zoom_region.resolution.width = eff_res.width;
1876 		dz_config->zoom_region.resolution.height = eff_res.height;
1877 		return 0;
1878 	}
1879 
1880 	/* FIXME:
1881 	 * This is not the correct implementation with Google's definition, due
1882 	 * to firmware limitation.
1883 	 * map real crop region base on above calculating base max crop region.
1884 	 */
1885 
1886 	if (!IS_ISP2401) {
1887 		dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
1888 						  * eff_res.width
1889 						  / asd->sensor_array_res.width;
1890 		dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
1891 						  * eff_res.height
1892 						  / asd->sensor_array_res.height;
1893 		dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
1894 							  * eff_res.width
1895 							  / asd->sensor_array_res.width;
1896 		dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
1897 							  * eff_res.height
1898 							  / asd->sensor_array_res.height;
1899 		/*
1900 		 * Set same ratio of crop region resolution and current pipe output
1901 		 * resolution
1902 		 */
1903 		out_res.width = stream_env->pipe_configs[css_pipe_id].output_info[0].res.width;
1904 		out_res.height = stream_env->pipe_configs[css_pipe_id].output_info[0].res.height;
1905 		if (out_res.width == 0 || out_res.height == 0) {
1906 			dev_err(asd->isp->dev, "%s err current pipe output resolution"
1907 				, __func__);
1908 			return -EINVAL;
1909 		}
1910 	} else {
1911 		out_res.width = stream_env->pipe_configs[css_pipe_id].output_info[0].res.width;
1912 		out_res.height = stream_env->pipe_configs[css_pipe_id].output_info[0].res.height;
1913 		if (out_res.width == 0 || out_res.height == 0) {
1914 			dev_err(asd->isp->dev, "%s err current pipe output resolution"
1915 				, __func__);
1916 			return -EINVAL;
1917 		}
1918 
1919 		if (asd->sensor_array_res.width * out_res.height
1920 		    < out_res.width * asd->sensor_array_res.height) {
1921 			h_offset = asd->sensor_array_res.height
1922 				   - asd->sensor_array_res.width
1923 				   * out_res.height / out_res.width;
1924 			h_offset = h_offset / 2;
1925 			if (dz_config->zoom_region.origin.y < h_offset)
1926 				dz_config->zoom_region.origin.y = 0;
1927 			else
1928 				dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y - h_offset;
1929 			w_offset = 0;
1930 		} else {
1931 			w_offset = asd->sensor_array_res.width
1932 				   - asd->sensor_array_res.height
1933 				   * out_res.width / out_res.height;
1934 			w_offset = w_offset / 2;
1935 			if (dz_config->zoom_region.origin.x < w_offset)
1936 				dz_config->zoom_region.origin.x = 0;
1937 			else
1938 				dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x - w_offset;
1939 			h_offset = 0;
1940 		}
1941 		dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
1942 						  * eff_res.width
1943 						  / (asd->sensor_array_res.width - 2 * w_offset);
1944 		dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
1945 						  * eff_res.height
1946 						  / (asd->sensor_array_res.height - 2 * h_offset);
1947 		dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
1948 						  * eff_res.width
1949 						  / (asd->sensor_array_res.width - 2 * w_offset);
1950 		dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
1951 						  * eff_res.height
1952 						  / (asd->sensor_array_res.height - 2 * h_offset);
1953 	}
1954 
1955 	if (out_res.width * dz_config->zoom_region.resolution.height
1956 	    > dz_config->zoom_region.resolution.width * out_res.height) {
1957 		dz_config->zoom_region.resolution.height =
1958 		    dz_config->zoom_region.resolution.width
1959 		    * out_res.height / out_res.width;
1960 	} else {
1961 		dz_config->zoom_region.resolution.width =
1962 		    dz_config->zoom_region.resolution.height
1963 		    * out_res.width / out_res.height;
1964 	}
1965 	dev_dbg(asd->isp->dev,
1966 		"%s crop region:(%d,%d),(%d,%d) eff_res(%d, %d) array_size(%d,%d) out_res(%d, %d)\n",
1967 		__func__, dz_config->zoom_region.origin.x,
1968 		dz_config->zoom_region.origin.y,
1969 		dz_config->zoom_region.resolution.width,
1970 		dz_config->zoom_region.resolution.height,
1971 		eff_res.width, eff_res.height,
1972 		asd->sensor_array_res.width,
1973 		asd->sensor_array_res.height,
1974 		out_res.width, out_res.height);
1975 
1976 	if ((dz_config->zoom_region.origin.x +
1977 	     dz_config->zoom_region.resolution.width
1978 	     > eff_res.width) ||
1979 	    (dz_config->zoom_region.origin.y +
1980 	     dz_config->zoom_region.resolution.height
1981 	     > eff_res.height))
1982 		return -EINVAL;
1983 
1984 	return 0;
1985 }
1986 
1987 /*
1988  * Function to check the zoom region whether is effective
1989  */
1990 static bool atomisp_check_zoom_region(
1991     struct atomisp_sub_device *asd,
1992     struct ia_css_dz_config *dz_config)
1993 {
1994 	struct atomisp_resolution  config;
1995 	bool flag = false;
1996 	unsigned int w, h;
1997 
1998 	memset(&config, 0, sizeof(struct atomisp_resolution));
1999 
2000 	if (dz_config->dx && dz_config->dy)
2001 		return true;
2002 
2003 	config.width = asd->sensor_array_res.width;
2004 	config.height = asd->sensor_array_res.height;
2005 	w = dz_config->zoom_region.origin.x +
2006 	    dz_config->zoom_region.resolution.width;
2007 	h = dz_config->zoom_region.origin.y +
2008 	    dz_config->zoom_region.resolution.height;
2009 
2010 	if ((w <= config.width) && (h <= config.height) && w > 0 && h > 0)
2011 		flag = true;
2012 	else
2013 		/* setting error zoom region */
2014 		dev_err(asd->isp->dev,
2015 			"%s zoom region ERROR:dz_config:(%d,%d),(%d,%d)array_res(%d, %d)\n",
2016 			__func__, dz_config->zoom_region.origin.x,
2017 			dz_config->zoom_region.origin.y,
2018 			dz_config->zoom_region.resolution.width,
2019 			dz_config->zoom_region.resolution.height,
2020 			config.width, config.height);
2021 
2022 	return flag;
2023 }
2024 
2025 void atomisp_apply_css_parameters(
2026     struct atomisp_sub_device *asd,
2027     struct atomisp_css_params *css_param)
2028 {
2029 	if (css_param->update_flag.wb_config)
2030 		asd->params.config.wb_config = &css_param->wb_config;
2031 
2032 	if (css_param->update_flag.ob_config)
2033 		asd->params.config.ob_config = &css_param->ob_config;
2034 
2035 	if (css_param->update_flag.dp_config)
2036 		asd->params.config.dp_config = &css_param->dp_config;
2037 
2038 	if (css_param->update_flag.nr_config)
2039 		asd->params.config.nr_config = &css_param->nr_config;
2040 
2041 	if (css_param->update_flag.ee_config)
2042 		asd->params.config.ee_config = &css_param->ee_config;
2043 
2044 	if (css_param->update_flag.tnr_config)
2045 		asd->params.config.tnr_config = &css_param->tnr_config;
2046 
2047 	if (css_param->update_flag.a3a_config)
2048 		asd->params.config.s3a_config = &css_param->s3a_config;
2049 
2050 	if (css_param->update_flag.ctc_config)
2051 		asd->params.config.ctc_config = &css_param->ctc_config;
2052 
2053 	if (css_param->update_flag.cnr_config)
2054 		asd->params.config.cnr_config = &css_param->cnr_config;
2055 
2056 	if (css_param->update_flag.ecd_config)
2057 		asd->params.config.ecd_config = &css_param->ecd_config;
2058 
2059 	if (css_param->update_flag.ynr_config)
2060 		asd->params.config.ynr_config = &css_param->ynr_config;
2061 
2062 	if (css_param->update_flag.fc_config)
2063 		asd->params.config.fc_config = &css_param->fc_config;
2064 
2065 	if (css_param->update_flag.macc_config)
2066 		asd->params.config.macc_config = &css_param->macc_config;
2067 
2068 	if (css_param->update_flag.aa_config)
2069 		asd->params.config.aa_config = &css_param->aa_config;
2070 
2071 	if (css_param->update_flag.anr_config)
2072 		asd->params.config.anr_config = &css_param->anr_config;
2073 
2074 	if (css_param->update_flag.xnr_config)
2075 		asd->params.config.xnr_config = &css_param->xnr_config;
2076 
2077 	if (css_param->update_flag.yuv2rgb_cc_config)
2078 		asd->params.config.yuv2rgb_cc_config = &css_param->yuv2rgb_cc_config;
2079 
2080 	if (css_param->update_flag.rgb2yuv_cc_config)
2081 		asd->params.config.rgb2yuv_cc_config = &css_param->rgb2yuv_cc_config;
2082 
2083 	if (css_param->update_flag.macc_table)
2084 		asd->params.config.macc_table = &css_param->macc_table;
2085 
2086 	if (css_param->update_flag.xnr_table)
2087 		asd->params.config.xnr_table = &css_param->xnr_table;
2088 
2089 	if (css_param->update_flag.r_gamma_table)
2090 		asd->params.config.r_gamma_table = &css_param->r_gamma_table;
2091 
2092 	if (css_param->update_flag.g_gamma_table)
2093 		asd->params.config.g_gamma_table = &css_param->g_gamma_table;
2094 
2095 	if (css_param->update_flag.b_gamma_table)
2096 		asd->params.config.b_gamma_table = &css_param->b_gamma_table;
2097 
2098 	if (css_param->update_flag.anr_thres)
2099 		atomisp_css_set_anr_thres(asd, &css_param->anr_thres);
2100 
2101 	if (css_param->update_flag.shading_table)
2102 		asd->params.config.shading_table = css_param->shading_table;
2103 
2104 	if (css_param->update_flag.morph_table && asd->params.gdc_cac_en)
2105 		asd->params.config.morph_table = css_param->morph_table;
2106 
2107 	if (css_param->update_flag.dvs2_coefs) {
2108 		struct ia_css_dvs_grid_info *dvs_grid_info =
2109 		    atomisp_css_get_dvs_grid_info(
2110 			&asd->params.curr_grid_info);
2111 
2112 		if (dvs_grid_info && dvs_grid_info->enable)
2113 			atomisp_css_set_dvs2_coefs(asd, css_param->dvs2_coeff);
2114 	}
2115 
2116 	if (css_param->update_flag.dvs_6axis_config)
2117 		atomisp_css_set_dvs_6axis(asd, css_param->dvs_6axis);
2118 
2119 	atomisp_css_set_isp_config_id(asd, css_param->isp_config_id);
2120 	/*
2121 	 * These configurations are on used by ISP1.x, not for ISP2.x,
2122 	 * so do not handle them. see comments of ia_css_isp_config.
2123 	 * 1 cc_config
2124 	 * 2 ce_config
2125 	 * 3 de_config
2126 	 * 4 gc_config
2127 	 * 5 gamma_table
2128 	 * 6 ctc_table
2129 	 * 7 dvs_coefs
2130 	 */
2131 }
2132 
2133 static unsigned int long copy_from_compatible(void *to, const void *from,
2134 	unsigned long n, bool from_user)
2135 {
2136 	if (from_user)
2137 		return copy_from_user(to, (void __user *)from, n);
2138 	else
2139 		memcpy(to, from, n);
2140 	return 0;
2141 }
2142 
2143 int atomisp_cp_general_isp_parameters(struct atomisp_sub_device *asd,
2144 				      struct atomisp_parameters *arg,
2145 				      struct atomisp_css_params *css_param,
2146 				      bool from_user)
2147 {
2148 	struct atomisp_parameters *cur_config = &css_param->update_flag;
2149 
2150 	if (!arg || !asd || !css_param)
2151 		return -EINVAL;
2152 
2153 	if (arg->wb_config && (from_user || !cur_config->wb_config)) {
2154 		if (copy_from_compatible(&css_param->wb_config, arg->wb_config,
2155 					 sizeof(struct ia_css_wb_config),
2156 					 from_user))
2157 			return -EFAULT;
2158 		css_param->update_flag.wb_config =
2159 		    (struct atomisp_wb_config *)&css_param->wb_config;
2160 	}
2161 
2162 	if (arg->ob_config && (from_user || !cur_config->ob_config)) {
2163 		if (copy_from_compatible(&css_param->ob_config, arg->ob_config,
2164 					 sizeof(struct ia_css_ob_config),
2165 					 from_user))
2166 			return -EFAULT;
2167 		css_param->update_flag.ob_config =
2168 		    (struct atomisp_ob_config *)&css_param->ob_config;
2169 	}
2170 
2171 	if (arg->dp_config && (from_user || !cur_config->dp_config)) {
2172 		if (copy_from_compatible(&css_param->dp_config, arg->dp_config,
2173 					 sizeof(struct ia_css_dp_config),
2174 					 from_user))
2175 			return -EFAULT;
2176 		css_param->update_flag.dp_config =
2177 		    (struct atomisp_dp_config *)&css_param->dp_config;
2178 	}
2179 
2180 	if (asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
2181 		if (arg->dz_config && (from_user || !cur_config->dz_config)) {
2182 			if (copy_from_compatible(&css_param->dz_config,
2183 						 arg->dz_config,
2184 						 sizeof(struct ia_css_dz_config),
2185 						 from_user))
2186 				return -EFAULT;
2187 			if (!atomisp_check_zoom_region(asd,
2188 						       &css_param->dz_config)) {
2189 				dev_err(asd->isp->dev, "crop region error!");
2190 				return -EINVAL;
2191 			}
2192 			css_param->update_flag.dz_config =
2193 			    (struct atomisp_dz_config *)
2194 			    &css_param->dz_config;
2195 		}
2196 	}
2197 
2198 	if (arg->nr_config && (from_user || !cur_config->nr_config)) {
2199 		if (copy_from_compatible(&css_param->nr_config, arg->nr_config,
2200 					 sizeof(struct ia_css_nr_config),
2201 					 from_user))
2202 			return -EFAULT;
2203 		css_param->update_flag.nr_config =
2204 		    (struct atomisp_nr_config *)&css_param->nr_config;
2205 	}
2206 
2207 	if (arg->ee_config && (from_user || !cur_config->ee_config)) {
2208 		if (copy_from_compatible(&css_param->ee_config, arg->ee_config,
2209 					 sizeof(struct ia_css_ee_config),
2210 					 from_user))
2211 			return -EFAULT;
2212 		css_param->update_flag.ee_config =
2213 		    (struct atomisp_ee_config *)&css_param->ee_config;
2214 	}
2215 
2216 	if (arg->tnr_config && (from_user || !cur_config->tnr_config)) {
2217 		if (copy_from_compatible(&css_param->tnr_config,
2218 					 arg->tnr_config,
2219 					 sizeof(struct ia_css_tnr_config),
2220 					 from_user))
2221 			return -EFAULT;
2222 		css_param->update_flag.tnr_config =
2223 		    (struct atomisp_tnr_config *)
2224 		    &css_param->tnr_config;
2225 	}
2226 
2227 	if (arg->a3a_config && (from_user || !cur_config->a3a_config)) {
2228 		if (copy_from_compatible(&css_param->s3a_config,
2229 					 arg->a3a_config,
2230 					 sizeof(struct ia_css_3a_config),
2231 					 from_user))
2232 			return -EFAULT;
2233 		css_param->update_flag.a3a_config =
2234 		    (struct atomisp_3a_config *)&css_param->s3a_config;
2235 	}
2236 
2237 	if (arg->ctc_config && (from_user || !cur_config->ctc_config)) {
2238 		if (copy_from_compatible(&css_param->ctc_config,
2239 					 arg->ctc_config,
2240 					 sizeof(struct ia_css_ctc_config),
2241 					 from_user))
2242 			return -EFAULT;
2243 		css_param->update_flag.ctc_config =
2244 		    (struct atomisp_ctc_config *)
2245 		    &css_param->ctc_config;
2246 	}
2247 
2248 	if (arg->cnr_config && (from_user || !cur_config->cnr_config)) {
2249 		if (copy_from_compatible(&css_param->cnr_config,
2250 					 arg->cnr_config,
2251 					 sizeof(struct ia_css_cnr_config),
2252 					 from_user))
2253 			return -EFAULT;
2254 		css_param->update_flag.cnr_config =
2255 		    (struct atomisp_cnr_config *)
2256 		    &css_param->cnr_config;
2257 	}
2258 
2259 	if (arg->ecd_config && (from_user || !cur_config->ecd_config)) {
2260 		if (copy_from_compatible(&css_param->ecd_config,
2261 					 arg->ecd_config,
2262 					 sizeof(struct ia_css_ecd_config),
2263 					 from_user))
2264 			return -EFAULT;
2265 		css_param->update_flag.ecd_config =
2266 		    (struct atomisp_ecd_config *)
2267 		    &css_param->ecd_config;
2268 	}
2269 
2270 	if (arg->ynr_config && (from_user || !cur_config->ynr_config)) {
2271 		if (copy_from_compatible(&css_param->ynr_config,
2272 					 arg->ynr_config,
2273 					 sizeof(struct ia_css_ynr_config),
2274 					 from_user))
2275 			return -EFAULT;
2276 		css_param->update_flag.ynr_config =
2277 		    (struct atomisp_ynr_config *)
2278 		    &css_param->ynr_config;
2279 	}
2280 
2281 	if (arg->fc_config && (from_user || !cur_config->fc_config)) {
2282 		if (copy_from_compatible(&css_param->fc_config,
2283 					 arg->fc_config,
2284 					 sizeof(struct ia_css_fc_config),
2285 					 from_user))
2286 			return -EFAULT;
2287 		css_param->update_flag.fc_config =
2288 		    (struct atomisp_fc_config *)&css_param->fc_config;
2289 	}
2290 
2291 	if (arg->macc_config && (from_user || !cur_config->macc_config)) {
2292 		if (copy_from_compatible(&css_param->macc_config,
2293 					 arg->macc_config,
2294 					 sizeof(struct ia_css_macc_config),
2295 					 from_user))
2296 			return -EFAULT;
2297 		css_param->update_flag.macc_config =
2298 		    (struct atomisp_macc_config *)
2299 		    &css_param->macc_config;
2300 	}
2301 
2302 	if (arg->aa_config && (from_user || !cur_config->aa_config)) {
2303 		if (copy_from_compatible(&css_param->aa_config, arg->aa_config,
2304 					 sizeof(struct ia_css_aa_config),
2305 					 from_user))
2306 			return -EFAULT;
2307 		css_param->update_flag.aa_config =
2308 		    (struct atomisp_aa_config *)&css_param->aa_config;
2309 	}
2310 
2311 	if (arg->anr_config && (from_user || !cur_config->anr_config)) {
2312 		if (copy_from_compatible(&css_param->anr_config,
2313 					 arg->anr_config,
2314 					 sizeof(struct ia_css_anr_config),
2315 					 from_user))
2316 			return -EFAULT;
2317 		css_param->update_flag.anr_config =
2318 		    (struct atomisp_anr_config *)
2319 		    &css_param->anr_config;
2320 	}
2321 
2322 	if (arg->xnr_config && (from_user || !cur_config->xnr_config)) {
2323 		if (copy_from_compatible(&css_param->xnr_config,
2324 					 arg->xnr_config,
2325 					 sizeof(struct ia_css_xnr_config),
2326 					 from_user))
2327 			return -EFAULT;
2328 		css_param->update_flag.xnr_config =
2329 		    (struct atomisp_xnr_config *)
2330 		    &css_param->xnr_config;
2331 	}
2332 
2333 	if (arg->yuv2rgb_cc_config &&
2334 	    (from_user || !cur_config->yuv2rgb_cc_config)) {
2335 		if (copy_from_compatible(&css_param->yuv2rgb_cc_config,
2336 					 arg->yuv2rgb_cc_config,
2337 					 sizeof(struct ia_css_cc_config),
2338 					 from_user))
2339 			return -EFAULT;
2340 		css_param->update_flag.yuv2rgb_cc_config =
2341 		    (struct atomisp_cc_config *)
2342 		    &css_param->yuv2rgb_cc_config;
2343 	}
2344 
2345 	if (arg->rgb2yuv_cc_config &&
2346 	    (from_user || !cur_config->rgb2yuv_cc_config)) {
2347 		if (copy_from_compatible(&css_param->rgb2yuv_cc_config,
2348 					 arg->rgb2yuv_cc_config,
2349 					 sizeof(struct ia_css_cc_config),
2350 					 from_user))
2351 			return -EFAULT;
2352 		css_param->update_flag.rgb2yuv_cc_config =
2353 		    (struct atomisp_cc_config *)
2354 		    &css_param->rgb2yuv_cc_config;
2355 	}
2356 
2357 	if (arg->macc_table && (from_user || !cur_config->macc_table)) {
2358 		if (copy_from_compatible(&css_param->macc_table,
2359 					 arg->macc_table,
2360 					 sizeof(struct ia_css_macc_table),
2361 					 from_user))
2362 			return -EFAULT;
2363 		css_param->update_flag.macc_table =
2364 		    (struct atomisp_macc_table *)
2365 		    &css_param->macc_table;
2366 	}
2367 
2368 	if (arg->xnr_table && (from_user || !cur_config->xnr_table)) {
2369 		if (copy_from_compatible(&css_param->xnr_table,
2370 					 arg->xnr_table,
2371 					 sizeof(struct ia_css_xnr_table),
2372 					 from_user))
2373 			return -EFAULT;
2374 		css_param->update_flag.xnr_table =
2375 		    (struct atomisp_xnr_table *)&css_param->xnr_table;
2376 	}
2377 
2378 	if (arg->r_gamma_table && (from_user || !cur_config->r_gamma_table)) {
2379 		if (copy_from_compatible(&css_param->r_gamma_table,
2380 					 arg->r_gamma_table,
2381 					 sizeof(struct ia_css_rgb_gamma_table),
2382 					 from_user))
2383 			return -EFAULT;
2384 		css_param->update_flag.r_gamma_table =
2385 		    (struct atomisp_rgb_gamma_table *)
2386 		    &css_param->r_gamma_table;
2387 	}
2388 
2389 	if (arg->g_gamma_table && (from_user || !cur_config->g_gamma_table)) {
2390 		if (copy_from_compatible(&css_param->g_gamma_table,
2391 					 arg->g_gamma_table,
2392 					 sizeof(struct ia_css_rgb_gamma_table),
2393 					 from_user))
2394 			return -EFAULT;
2395 		css_param->update_flag.g_gamma_table =
2396 		    (struct atomisp_rgb_gamma_table *)
2397 		    &css_param->g_gamma_table;
2398 	}
2399 
2400 	if (arg->b_gamma_table && (from_user || !cur_config->b_gamma_table)) {
2401 		if (copy_from_compatible(&css_param->b_gamma_table,
2402 					 arg->b_gamma_table,
2403 					 sizeof(struct ia_css_rgb_gamma_table),
2404 					 from_user))
2405 			return -EFAULT;
2406 		css_param->update_flag.b_gamma_table =
2407 		    (struct atomisp_rgb_gamma_table *)
2408 		    &css_param->b_gamma_table;
2409 	}
2410 
2411 	if (arg->anr_thres && (from_user || !cur_config->anr_thres)) {
2412 		if (copy_from_compatible(&css_param->anr_thres, arg->anr_thres,
2413 					 sizeof(struct ia_css_anr_thres),
2414 					 from_user))
2415 			return -EFAULT;
2416 		css_param->update_flag.anr_thres =
2417 		    (struct atomisp_anr_thres *)&css_param->anr_thres;
2418 	}
2419 
2420 	if (from_user)
2421 		css_param->isp_config_id = arg->isp_config_id;
2422 	/*
2423 	 * These configurations are on used by ISP1.x, not for ISP2.x,
2424 	 * so do not handle them. see comments of ia_css_isp_config.
2425 	 * 1 cc_config
2426 	 * 2 ce_config
2427 	 * 3 de_config
2428 	 * 4 gc_config
2429 	 * 5 gamma_table
2430 	 * 6 ctc_table
2431 	 * 7 dvs_coefs
2432 	 */
2433 	return 0;
2434 }
2435 
2436 int atomisp_cp_lsc_table(struct atomisp_sub_device *asd,
2437 			 struct atomisp_shading_table *source_st,
2438 			 struct atomisp_css_params *css_param,
2439 			 bool from_user)
2440 {
2441 	unsigned int i;
2442 	unsigned int len_table;
2443 	struct ia_css_shading_table *shading_table;
2444 	struct ia_css_shading_table *old_table;
2445 	struct atomisp_shading_table *st, dest_st;
2446 
2447 	if (!source_st)
2448 		return 0;
2449 
2450 	if (!css_param)
2451 		return -EINVAL;
2452 
2453 	if (!from_user && css_param->update_flag.shading_table)
2454 		return 0;
2455 
2456 	if (IS_ISP2401) {
2457 		if (copy_from_compatible(&dest_st, source_st,
2458 					sizeof(struct atomisp_shading_table),
2459 					from_user)) {
2460 			dev_err(asd->isp->dev, "copy shading table failed!");
2461 			return -EFAULT;
2462 		}
2463 		st = &dest_st;
2464 	} else {
2465 		st = source_st;
2466 	}
2467 
2468 	old_table = css_param->shading_table;
2469 
2470 	/* user config is to disable the shading table. */
2471 	if (!st->enable) {
2472 		/* Generate a minimum table with enable = 0. */
2473 		shading_table = atomisp_css_shading_table_alloc(1, 1);
2474 		if (!shading_table)
2475 			return -ENOMEM;
2476 		shading_table->enable = 0;
2477 		goto set_lsc;
2478 	}
2479 
2480 	/* Setting a new table. Validate first - all tables must be set */
2481 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
2482 		if (!st->data[i]) {
2483 			dev_err(asd->isp->dev, "shading table validate failed");
2484 			return -EINVAL;
2485 		}
2486 	}
2487 
2488 	/* Shading table size per color */
2489 	if (st->width > SH_CSS_MAX_SCTBL_WIDTH_PER_COLOR ||
2490 	    st->height > SH_CSS_MAX_SCTBL_HEIGHT_PER_COLOR) {
2491 		dev_err(asd->isp->dev, "shading table w/h validate failed!");
2492 		return -EINVAL;
2493 	}
2494 
2495 	shading_table = atomisp_css_shading_table_alloc(st->width, st->height);
2496 	if (!shading_table)
2497 		return -ENOMEM;
2498 
2499 	len_table = st->width * st->height * ATOMISP_SC_TYPE_SIZE;
2500 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
2501 		if (copy_from_compatible(shading_table->data[i],
2502 					 st->data[i], len_table, from_user)) {
2503 			atomisp_css_shading_table_free(shading_table);
2504 			return -EFAULT;
2505 		}
2506 	}
2507 	shading_table->sensor_width = st->sensor_width;
2508 	shading_table->sensor_height = st->sensor_height;
2509 	shading_table->fraction_bits = st->fraction_bits;
2510 	shading_table->enable = st->enable;
2511 
2512 	/* No need to update shading table if it is the same */
2513 	if (old_table &&
2514 	    old_table->sensor_width == shading_table->sensor_width &&
2515 	    old_table->sensor_height == shading_table->sensor_height &&
2516 	    old_table->width == shading_table->width &&
2517 	    old_table->height == shading_table->height &&
2518 	    old_table->fraction_bits == shading_table->fraction_bits &&
2519 	    old_table->enable == shading_table->enable) {
2520 		bool data_is_same = true;
2521 
2522 		for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
2523 			if (memcmp(shading_table->data[i], old_table->data[i],
2524 				   len_table) != 0) {
2525 				data_is_same = false;
2526 				break;
2527 			}
2528 		}
2529 
2530 		if (data_is_same) {
2531 			atomisp_css_shading_table_free(shading_table);
2532 			return 0;
2533 		}
2534 	}
2535 
2536 set_lsc:
2537 	/* set LSC to CSS */
2538 	css_param->shading_table = shading_table;
2539 	css_param->update_flag.shading_table = (struct atomisp_shading_table *)shading_table;
2540 	asd->params.sc_en = shading_table;
2541 
2542 	if (old_table)
2543 		atomisp_css_shading_table_free(old_table);
2544 
2545 	return 0;
2546 }
2547 
2548 int atomisp_css_cp_dvs2_coefs(struct atomisp_sub_device *asd,
2549 			      struct ia_css_dvs2_coefficients *coefs,
2550 			      struct atomisp_css_params *css_param,
2551 			      bool from_user)
2552 {
2553 	struct ia_css_dvs_grid_info *cur =
2554 	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
2555 	int dvs_hor_coef_bytes, dvs_ver_coef_bytes;
2556 	struct ia_css_dvs2_coefficients dvs2_coefs;
2557 
2558 	if (!coefs || !cur)
2559 		return 0;
2560 
2561 	if (!from_user && css_param->update_flag.dvs2_coefs)
2562 		return 0;
2563 
2564 	if (!IS_ISP2401) {
2565 		if (sizeof(*cur) != sizeof(coefs->grid) ||
2566 		    memcmp(&coefs->grid, cur, sizeof(coefs->grid))) {
2567 			dev_err(asd->isp->dev, "dvs grid mismatch!\n");
2568 			/* If the grid info in the argument differs from the current
2569 			grid info, we tell the caller to reset the grid size and
2570 			try again. */
2571 			return -EAGAIN;
2572 		}
2573 
2574 		if (!coefs->hor_coefs.odd_real ||
2575 		    !coefs->hor_coefs.odd_imag ||
2576 		    !coefs->hor_coefs.even_real ||
2577 		    !coefs->hor_coefs.even_imag ||
2578 		    !coefs->ver_coefs.odd_real ||
2579 		    !coefs->ver_coefs.odd_imag ||
2580 		    !coefs->ver_coefs.even_real ||
2581 		    !coefs->ver_coefs.even_imag)
2582 			return -EINVAL;
2583 
2584 		if (!css_param->dvs2_coeff) {
2585 			/* DIS coefficients. */
2586 			css_param->dvs2_coeff = ia_css_dvs2_coefficients_allocate(cur);
2587 			if (!css_param->dvs2_coeff)
2588 				return -ENOMEM;
2589 		}
2590 
2591 		dvs_hor_coef_bytes = asd->params.dvs_hor_coef_bytes;
2592 		dvs_ver_coef_bytes = asd->params.dvs_ver_coef_bytes;
2593 		if (copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_real,
2594 					coefs->hor_coefs.odd_real, dvs_hor_coef_bytes, from_user) ||
2595 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_imag,
2596 					coefs->hor_coefs.odd_imag, dvs_hor_coef_bytes, from_user) ||
2597 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_real,
2598 					coefs->hor_coefs.even_real, dvs_hor_coef_bytes, from_user) ||
2599 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_imag,
2600 					coefs->hor_coefs.even_imag, dvs_hor_coef_bytes, from_user) ||
2601 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_real,
2602 					coefs->ver_coefs.odd_real, dvs_ver_coef_bytes, from_user) ||
2603 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_imag,
2604 					coefs->ver_coefs.odd_imag, dvs_ver_coef_bytes, from_user) ||
2605 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_real,
2606 					coefs->ver_coefs.even_real, dvs_ver_coef_bytes, from_user) ||
2607 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_imag,
2608 					coefs->ver_coefs.even_imag, dvs_ver_coef_bytes, from_user)) {
2609 			ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
2610 			css_param->dvs2_coeff = NULL;
2611 			return -EFAULT;
2612 		}
2613 	} else {
2614 		if (copy_from_compatible(&dvs2_coefs, coefs,
2615 					sizeof(struct ia_css_dvs2_coefficients),
2616 					from_user)) {
2617 			dev_err(asd->isp->dev, "copy dvs2 coef failed");
2618 			return -EFAULT;
2619 		}
2620 
2621 		if (sizeof(*cur) != sizeof(dvs2_coefs.grid) ||
2622 		    memcmp(&dvs2_coefs.grid, cur, sizeof(dvs2_coefs.grid))) {
2623 			dev_err(asd->isp->dev, "dvs grid mismatch!\n");
2624 			/* If the grid info in the argument differs from the current
2625 			grid info, we tell the caller to reset the grid size and
2626 			try again. */
2627 			return -EAGAIN;
2628 		}
2629 
2630 		if (!dvs2_coefs.hor_coefs.odd_real ||
2631 		    !dvs2_coefs.hor_coefs.odd_imag ||
2632 		    !dvs2_coefs.hor_coefs.even_real ||
2633 		    !dvs2_coefs.hor_coefs.even_imag ||
2634 		    !dvs2_coefs.ver_coefs.odd_real ||
2635 		    !dvs2_coefs.ver_coefs.odd_imag ||
2636 		    !dvs2_coefs.ver_coefs.even_real ||
2637 		    !dvs2_coefs.ver_coefs.even_imag)
2638 			return -EINVAL;
2639 
2640 		if (!css_param->dvs2_coeff) {
2641 			/* DIS coefficients. */
2642 			css_param->dvs2_coeff = ia_css_dvs2_coefficients_allocate(cur);
2643 			if (!css_param->dvs2_coeff)
2644 				return -ENOMEM;
2645 		}
2646 
2647 		dvs_hor_coef_bytes = asd->params.dvs_hor_coef_bytes;
2648 		dvs_ver_coef_bytes = asd->params.dvs_ver_coef_bytes;
2649 		if (copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_real,
2650 					dvs2_coefs.hor_coefs.odd_real, dvs_hor_coef_bytes, from_user) ||
2651 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.odd_imag,
2652 					dvs2_coefs.hor_coefs.odd_imag, dvs_hor_coef_bytes, from_user) ||
2653 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_real,
2654 					dvs2_coefs.hor_coefs.even_real, dvs_hor_coef_bytes, from_user) ||
2655 		    copy_from_compatible(css_param->dvs2_coeff->hor_coefs.even_imag,
2656 					dvs2_coefs.hor_coefs.even_imag, dvs_hor_coef_bytes, from_user) ||
2657 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_real,
2658 					dvs2_coefs.ver_coefs.odd_real, dvs_ver_coef_bytes, from_user) ||
2659 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.odd_imag,
2660 					dvs2_coefs.ver_coefs.odd_imag, dvs_ver_coef_bytes, from_user) ||
2661 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_real,
2662 					dvs2_coefs.ver_coefs.even_real, dvs_ver_coef_bytes, from_user) ||
2663 		    copy_from_compatible(css_param->dvs2_coeff->ver_coefs.even_imag,
2664 					dvs2_coefs.ver_coefs.even_imag, dvs_ver_coef_bytes, from_user)) {
2665 			ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
2666 			css_param->dvs2_coeff = NULL;
2667 			return -EFAULT;
2668 		}
2669 	}
2670 
2671 	css_param->update_flag.dvs2_coefs =
2672 	    (struct atomisp_dis_coefficients *)css_param->dvs2_coeff;
2673 	return 0;
2674 }
2675 
2676 int atomisp_cp_dvs_6axis_config(struct atomisp_sub_device *asd,
2677 				struct atomisp_dvs_6axis_config *source_6axis_config,
2678 				struct atomisp_css_params *css_param,
2679 				bool from_user)
2680 {
2681 	struct ia_css_dvs_6axis_config *dvs_6axis_config;
2682 	struct ia_css_dvs_6axis_config *old_6axis_config;
2683 	struct ia_css_stream *stream =
2684 		    asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream;
2685 	struct ia_css_dvs_grid_info *dvs_grid_info =
2686 	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
2687 	int ret = -EFAULT;
2688 
2689 	if (!stream) {
2690 		dev_err(asd->isp->dev, "%s: internal error!", __func__);
2691 		return -EINVAL;
2692 	}
2693 
2694 	if (!source_6axis_config || !dvs_grid_info)
2695 		return 0;
2696 
2697 	if (!dvs_grid_info->enable)
2698 		return 0;
2699 
2700 	if (!from_user && css_param->update_flag.dvs_6axis_config)
2701 		return 0;
2702 
2703 	/* check whether need to reallocate for 6 axis config */
2704 	old_6axis_config = css_param->dvs_6axis;
2705 	dvs_6axis_config = old_6axis_config;
2706 
2707 	if (IS_ISP2401) {
2708 		struct ia_css_dvs_6axis_config t_6axis_config;
2709 
2710 		if (copy_from_compatible(&t_6axis_config, source_6axis_config,
2711 					sizeof(struct atomisp_dvs_6axis_config),
2712 					from_user)) {
2713 			dev_err(asd->isp->dev, "copy morph table failed!");
2714 			return -EFAULT;
2715 		}
2716 
2717 		if (old_6axis_config &&
2718 		    (old_6axis_config->width_y != t_6axis_config.width_y ||
2719 		    old_6axis_config->height_y != t_6axis_config.height_y ||
2720 		    old_6axis_config->width_uv != t_6axis_config.width_uv ||
2721 		    old_6axis_config->height_uv != t_6axis_config.height_uv)) {
2722 			ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
2723 			css_param->dvs_6axis = NULL;
2724 
2725 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
2726 			if (!dvs_6axis_config)
2727 				return -ENOMEM;
2728 		} else if (!dvs_6axis_config) {
2729 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
2730 			if (!dvs_6axis_config)
2731 				return -ENOMEM;
2732 		}
2733 
2734 		dvs_6axis_config->exp_id = t_6axis_config.exp_id;
2735 
2736 		if (copy_from_compatible(dvs_6axis_config->xcoords_y,
2737 					t_6axis_config.xcoords_y,
2738 					t_6axis_config.width_y *
2739 					t_6axis_config.height_y *
2740 					sizeof(*dvs_6axis_config->xcoords_y),
2741 					from_user))
2742 			goto error;
2743 		if (copy_from_compatible(dvs_6axis_config->ycoords_y,
2744 					t_6axis_config.ycoords_y,
2745 					t_6axis_config.width_y *
2746 					t_6axis_config.height_y *
2747 					sizeof(*dvs_6axis_config->ycoords_y),
2748 					from_user))
2749 			goto error;
2750 		if (copy_from_compatible(dvs_6axis_config->xcoords_uv,
2751 					t_6axis_config.xcoords_uv,
2752 					t_6axis_config.width_uv *
2753 					t_6axis_config.height_uv *
2754 					sizeof(*dvs_6axis_config->xcoords_uv),
2755 					from_user))
2756 			goto error;
2757 		if (copy_from_compatible(dvs_6axis_config->ycoords_uv,
2758 					t_6axis_config.ycoords_uv,
2759 					t_6axis_config.width_uv *
2760 					t_6axis_config.height_uv *
2761 					sizeof(*dvs_6axis_config->ycoords_uv),
2762 					from_user))
2763 			goto error;
2764 	} else {
2765 		if (old_6axis_config &&
2766 		    (old_6axis_config->width_y != source_6axis_config->width_y ||
2767 		    old_6axis_config->height_y != source_6axis_config->height_y ||
2768 		    old_6axis_config->width_uv != source_6axis_config->width_uv ||
2769 		    old_6axis_config->height_uv != source_6axis_config->height_uv)) {
2770 			ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
2771 			css_param->dvs_6axis = NULL;
2772 
2773 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
2774 			if (!dvs_6axis_config) {
2775 				ret = -ENOMEM;
2776 				goto error;
2777 			}
2778 		} else if (!dvs_6axis_config) {
2779 			dvs_6axis_config = ia_css_dvs2_6axis_config_allocate(stream);
2780 			if (!dvs_6axis_config) {
2781 				ret = -ENOMEM;
2782 				goto error;
2783 			}
2784 		}
2785 
2786 		dvs_6axis_config->exp_id = source_6axis_config->exp_id;
2787 
2788 		if (copy_from_compatible(dvs_6axis_config->xcoords_y,
2789 					source_6axis_config->xcoords_y,
2790 					source_6axis_config->width_y *
2791 					source_6axis_config->height_y *
2792 					sizeof(*source_6axis_config->xcoords_y),
2793 					from_user))
2794 			goto error;
2795 		if (copy_from_compatible(dvs_6axis_config->ycoords_y,
2796 					source_6axis_config->ycoords_y,
2797 					source_6axis_config->width_y *
2798 					source_6axis_config->height_y *
2799 					sizeof(*source_6axis_config->ycoords_y),
2800 					from_user))
2801 			goto error;
2802 		if (copy_from_compatible(dvs_6axis_config->xcoords_uv,
2803 					source_6axis_config->xcoords_uv,
2804 					source_6axis_config->width_uv *
2805 					source_6axis_config->height_uv *
2806 					sizeof(*source_6axis_config->xcoords_uv),
2807 					from_user))
2808 			goto error;
2809 		if (copy_from_compatible(dvs_6axis_config->ycoords_uv,
2810 					source_6axis_config->ycoords_uv,
2811 					source_6axis_config->width_uv *
2812 					source_6axis_config->height_uv *
2813 					sizeof(*source_6axis_config->ycoords_uv),
2814 					from_user))
2815 			goto error;
2816 	}
2817 	css_param->dvs_6axis = dvs_6axis_config;
2818 	css_param->update_flag.dvs_6axis_config =
2819 	    (struct atomisp_dvs_6axis_config *)dvs_6axis_config;
2820 	return 0;
2821 
2822 error:
2823 	if (dvs_6axis_config)
2824 		ia_css_dvs2_6axis_config_free(dvs_6axis_config);
2825 	return ret;
2826 }
2827 
2828 int atomisp_cp_morph_table(struct atomisp_sub_device *asd,
2829 			   struct atomisp_morph_table *source_morph_table,
2830 			   struct atomisp_css_params *css_param,
2831 			   bool from_user)
2832 {
2833 	int ret = -EFAULT;
2834 	unsigned int i;
2835 	struct ia_css_morph_table *morph_table;
2836 	struct ia_css_morph_table *old_morph_table;
2837 
2838 	if (!source_morph_table)
2839 		return 0;
2840 
2841 	if (!from_user && css_param->update_flag.morph_table)
2842 		return 0;
2843 
2844 	old_morph_table = css_param->morph_table;
2845 
2846 	if (IS_ISP2401) {
2847 		struct ia_css_morph_table mtbl;
2848 
2849 		if (copy_from_compatible(&mtbl, source_morph_table,
2850 				sizeof(struct atomisp_morph_table),
2851 				from_user)) {
2852 			dev_err(asd->isp->dev, "copy morph table failed!");
2853 			return -EFAULT;
2854 		}
2855 
2856 		morph_table = atomisp_css_morph_table_allocate(
2857 				mtbl.width,
2858 				mtbl.height);
2859 		if (!morph_table)
2860 			return -ENOMEM;
2861 
2862 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
2863 			if (copy_from_compatible(morph_table->coordinates_x[i],
2864 						(__force void *)source_morph_table->coordinates_x[i],
2865 						mtbl.height * mtbl.width *
2866 						sizeof(*morph_table->coordinates_x[i]),
2867 						from_user))
2868 				goto error;
2869 
2870 			if (copy_from_compatible(morph_table->coordinates_y[i],
2871 						(__force void *)source_morph_table->coordinates_y[i],
2872 						mtbl.height * mtbl.width *
2873 						sizeof(*morph_table->coordinates_y[i]),
2874 						from_user))
2875 				goto error;
2876 		}
2877 	} else {
2878 		morph_table = atomisp_css_morph_table_allocate(
2879 				source_morph_table->width,
2880 				source_morph_table->height);
2881 		if (!morph_table) {
2882 			ret = -ENOMEM;
2883 			goto error;
2884 		}
2885 
2886 		for (i = 0; i < IA_CSS_MORPH_TABLE_NUM_PLANES; i++) {
2887 			if (copy_from_compatible(morph_table->coordinates_x[i],
2888 						(__force void *)source_morph_table->coordinates_x[i],
2889 						source_morph_table->height * source_morph_table->width *
2890 						sizeof(*source_morph_table->coordinates_x[i]),
2891 						from_user))
2892 				goto error;
2893 
2894 			if (copy_from_compatible(morph_table->coordinates_y[i],
2895 						(__force void *)source_morph_table->coordinates_y[i],
2896 						source_morph_table->height * source_morph_table->width *
2897 						sizeof(*source_morph_table->coordinates_y[i]),
2898 						from_user))
2899 				goto error;
2900 		}
2901 	}
2902 
2903 	css_param->morph_table = morph_table;
2904 	if (old_morph_table)
2905 		atomisp_css_morph_table_free(old_morph_table);
2906 	css_param->update_flag.morph_table =
2907 	    (struct atomisp_morph_table *)morph_table;
2908 	return 0;
2909 
2910 error:
2911 	if (morph_table)
2912 		atomisp_css_morph_table_free(morph_table);
2913 	return ret;
2914 }
2915 
2916 int atomisp_makeup_css_parameters(struct atomisp_sub_device *asd,
2917 				  struct atomisp_parameters *arg,
2918 				  struct atomisp_css_params *css_param)
2919 {
2920 	int ret;
2921 
2922 	ret = atomisp_cp_general_isp_parameters(asd, arg, css_param, false);
2923 	if (ret)
2924 		return ret;
2925 	ret = atomisp_cp_lsc_table(asd, arg->shading_table, css_param, false);
2926 	if (ret)
2927 		return ret;
2928 	ret = atomisp_cp_morph_table(asd, arg->morph_table, css_param, false);
2929 	if (ret)
2930 		return ret;
2931 	ret = atomisp_css_cp_dvs2_coefs(asd,
2932 					(struct ia_css_dvs2_coefficients *)arg->dvs2_coefs,
2933 					css_param, false);
2934 	if (ret)
2935 		return ret;
2936 	ret = atomisp_cp_dvs_6axis_config(asd, arg->dvs_6axis_config,
2937 					  css_param, false);
2938 	return ret;
2939 }
2940 
2941 void atomisp_free_css_parameters(struct atomisp_css_params *css_param)
2942 {
2943 	if (css_param->dvs_6axis) {
2944 		ia_css_dvs2_6axis_config_free(css_param->dvs_6axis);
2945 		css_param->dvs_6axis = NULL;
2946 	}
2947 	if (css_param->dvs2_coeff) {
2948 		ia_css_dvs2_coefficients_free(css_param->dvs2_coeff);
2949 		css_param->dvs2_coeff = NULL;
2950 	}
2951 	if (css_param->shading_table) {
2952 		ia_css_shading_table_free(css_param->shading_table);
2953 		css_param->shading_table = NULL;
2954 	}
2955 	if (css_param->morph_table) {
2956 		ia_css_morph_table_free(css_param->morph_table);
2957 		css_param->morph_table = NULL;
2958 	}
2959 }
2960 
2961 static void atomisp_move_frame_to_activeq(struct ia_css_frame *frame,
2962 					  struct atomisp_css_params_with_list *param)
2963 {
2964 	struct atomisp_video_pipe *pipe = vb_to_pipe(&frame->vb.vb2_buf);
2965 	unsigned long irqflags;
2966 
2967 	pipe->frame_params[frame->vb.vb2_buf.index] = param;
2968 	spin_lock_irqsave(&pipe->irq_lock, irqflags);
2969 	list_move_tail(&frame->queue, &pipe->activeq);
2970 	spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
2971 }
2972 
2973 /*
2974  * Check parameter queue list and buffer queue list to find out if matched items
2975  * and then set parameter to CSS and enqueue buffer to CSS.
2976  * Of course, if the buffer in buffer waiting list is not bound to a per-frame
2977  * parameter, it will be enqueued into CSS as long as the per-frame setting
2978  * buffers before it get enqueued.
2979  */
2980 void atomisp_handle_parameter_and_buffer(struct atomisp_video_pipe *pipe)
2981 {
2982 	struct atomisp_sub_device *asd = pipe->asd;
2983 	struct ia_css_frame *frame = NULL, *frame_tmp;
2984 	struct atomisp_css_params_with_list *param = NULL, *param_tmp;
2985 	bool need_to_enqueue_buffer = false;
2986 	int i;
2987 
2988 	lockdep_assert_held(&asd->isp->mutex);
2989 
2990 	/*
2991 	 * CSS/FW requires set parameter and enqueue buffer happen after ISP
2992 	 * is streamon.
2993 	 */
2994 	if (!asd->streaming)
2995 		return;
2996 
2997 	if (list_empty(&pipe->per_frame_params) ||
2998 	    list_empty(&pipe->buffers_waiting_for_param))
2999 		return;
3000 
3001 	list_for_each_entry_safe(frame, frame_tmp,
3002 				 &pipe->buffers_waiting_for_param, queue) {
3003 		i = frame->vb.vb2_buf.index;
3004 		if (pipe->frame_request_config_id[i]) {
3005 			list_for_each_entry_safe(param, param_tmp,
3006 						 &pipe->per_frame_params, list) {
3007 				if (pipe->frame_request_config_id[i] != param->params.isp_config_id)
3008 					continue;
3009 
3010 				list_del(&param->list);
3011 
3012 				/*
3013 				 * clear the request config id as the buffer
3014 				 * will be handled and enqueued into CSS soon
3015 				 */
3016 				pipe->frame_request_config_id[i] = 0;
3017 				atomisp_move_frame_to_activeq(frame, param);
3018 				need_to_enqueue_buffer = true;
3019 				break;
3020 			}
3021 
3022 			/* If this is the end, stop further loop */
3023 			if (list_entry_is_head(param, &pipe->per_frame_params, list))
3024 				break;
3025 		} else {
3026 			atomisp_move_frame_to_activeq(frame, NULL);
3027 			need_to_enqueue_buffer = true;
3028 		}
3029 	}
3030 
3031 	if (!need_to_enqueue_buffer)
3032 		return;
3033 
3034 	atomisp_qbuffers_to_css(asd);
3035 }
3036 
3037 /*
3038 * Function to configure ISP parameters
3039 */
3040 int atomisp_set_parameters(struct video_device *vdev,
3041 			   struct atomisp_parameters *arg)
3042 {
3043 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
3044 	struct atomisp_sub_device *asd = pipe->asd;
3045 	struct atomisp_css_params_with_list *param = NULL;
3046 	struct atomisp_css_params *css_param = &asd->params.css_param;
3047 	int ret;
3048 
3049 	lockdep_assert_held(&asd->isp->mutex);
3050 
3051 	if (!asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream) {
3052 		dev_err(asd->isp->dev, "%s: internal error!\n", __func__);
3053 		return -EINVAL;
3054 	}
3055 
3056 	dev_dbg(asd->isp->dev, "set parameter(per_frame_setting %d) isp_config_id %d of %s\n",
3057 		arg->per_frame_setting, arg->isp_config_id, vdev->name);
3058 
3059 	if (arg->per_frame_setting) {
3060 		/*
3061 		 * Per-frame setting enabled, we allocate a new parameter
3062 		 * buffer to cache the parameters and only when frame buffers
3063 		 * are ready, the parameters will be set to CSS.
3064 		 * per-frame setting only works for the main output frame.
3065 		 */
3066 		param = kvzalloc(sizeof(*param), GFP_KERNEL);
3067 		if (!param) {
3068 			dev_err(asd->isp->dev, "%s: failed to alloc params buffer\n",
3069 				__func__);
3070 			return -ENOMEM;
3071 		}
3072 		css_param = &param->params;
3073 	}
3074 
3075 	ret = atomisp_cp_general_isp_parameters(asd, arg, css_param, true);
3076 	if (ret)
3077 		goto apply_parameter_failed;
3078 
3079 	ret = atomisp_cp_lsc_table(asd, arg->shading_table, css_param, true);
3080 	if (ret)
3081 		goto apply_parameter_failed;
3082 
3083 	ret = atomisp_cp_morph_table(asd, arg->morph_table, css_param, true);
3084 	if (ret)
3085 		goto apply_parameter_failed;
3086 
3087 	ret = atomisp_css_cp_dvs2_coefs(asd,
3088 					(struct ia_css_dvs2_coefficients *)arg->dvs2_coefs,
3089 					css_param, true);
3090 	if (ret)
3091 		goto apply_parameter_failed;
3092 
3093 	ret = atomisp_cp_dvs_6axis_config(asd, arg->dvs_6axis_config,
3094 					  css_param, true);
3095 	if (ret)
3096 		goto apply_parameter_failed;
3097 
3098 	if (!arg->per_frame_setting) {
3099 		/* indicate to CSS that we have parameters to be updated */
3100 		asd->params.css_update_params_needed = true;
3101 	} else {
3102 		list_add_tail(&param->list, &pipe->per_frame_params);
3103 		atomisp_handle_parameter_and_buffer(pipe);
3104 	}
3105 
3106 	return 0;
3107 
3108 apply_parameter_failed:
3109 	if (css_param)
3110 		atomisp_free_css_parameters(css_param);
3111 	kvfree(param);
3112 
3113 	return ret;
3114 }
3115 
3116 /*
3117  * Function to set/get isp parameters to isp
3118  */
3119 int atomisp_param(struct atomisp_sub_device *asd, int flag,
3120 		  struct atomisp_parm *config)
3121 {
3122 	struct ia_css_pipe_config *vp_cfg =
3123 		    &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].
3124 		    pipe_configs[IA_CSS_PIPE_ID_VIDEO];
3125 
3126 	/* Read parameter for 3A binary info */
3127 	if (flag == 0) {
3128 		struct ia_css_dvs_grid_info *dvs_grid_info =
3129 		    atomisp_css_get_dvs_grid_info(
3130 			&asd->params.curr_grid_info);
3131 
3132 		atomisp_curr_user_grid_info(asd, &config->info);
3133 
3134 		/* We always return the resolution and stride even if there is
3135 		 * no valid metadata. This allows the caller to get the
3136 		 * information needed to allocate user-space buffers. */
3137 		config->metadata_config.metadata_height = asd->
3138 			stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
3139 			metadata_info.resolution.height;
3140 		config->metadata_config.metadata_stride = asd->
3141 			stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
3142 			metadata_info.stride;
3143 
3144 		/* update dvs grid info */
3145 		if (dvs_grid_info)
3146 			memcpy(&config->dvs_grid,
3147 			       dvs_grid_info,
3148 			       sizeof(struct ia_css_dvs_grid_info));
3149 
3150 		if (asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
3151 			config->dvs_envelop.width = 0;
3152 			config->dvs_envelop.height = 0;
3153 			return 0;
3154 		}
3155 
3156 		/* update dvs envelop info */
3157 		config->dvs_envelop.width = vp_cfg->dvs_envelope.width;
3158 		config->dvs_envelop.height = vp_cfg->dvs_envelope.height;
3159 		return 0;
3160 	}
3161 
3162 	memcpy(&asd->params.css_param.wb_config, &config->wb_config,
3163 	       sizeof(struct ia_css_wb_config));
3164 	memcpy(&asd->params.css_param.ob_config, &config->ob_config,
3165 	       sizeof(struct ia_css_ob_config));
3166 	memcpy(&asd->params.css_param.dp_config, &config->dp_config,
3167 	       sizeof(struct ia_css_dp_config));
3168 	memcpy(&asd->params.css_param.de_config, &config->de_config,
3169 	       sizeof(struct ia_css_de_config));
3170 	memcpy(&asd->params.css_param.dz_config, &config->dz_config,
3171 	       sizeof(struct ia_css_dz_config));
3172 	memcpy(&asd->params.css_param.ce_config, &config->ce_config,
3173 	       sizeof(struct ia_css_ce_config));
3174 	memcpy(&asd->params.css_param.nr_config, &config->nr_config,
3175 	       sizeof(struct ia_css_nr_config));
3176 	memcpy(&asd->params.css_param.ee_config, &config->ee_config,
3177 	       sizeof(struct ia_css_ee_config));
3178 	memcpy(&asd->params.css_param.tnr_config, &config->tnr_config,
3179 	       sizeof(struct ia_css_tnr_config));
3180 
3181 	if (asd->params.color_effect == V4L2_COLORFX_NEGATIVE) {
3182 		asd->params.css_param.cc_config.matrix[3] = -config->cc_config.matrix[3];
3183 		asd->params.css_param.cc_config.matrix[4] = -config->cc_config.matrix[4];
3184 		asd->params.css_param.cc_config.matrix[5] = -config->cc_config.matrix[5];
3185 		asd->params.css_param.cc_config.matrix[6] = -config->cc_config.matrix[6];
3186 		asd->params.css_param.cc_config.matrix[7] = -config->cc_config.matrix[7];
3187 		asd->params.css_param.cc_config.matrix[8] = -config->cc_config.matrix[8];
3188 	}
3189 
3190 	if (asd->params.color_effect != V4L2_COLORFX_SEPIA &&
3191 	    asd->params.color_effect != V4L2_COLORFX_BW) {
3192 		memcpy(&asd->params.css_param.cc_config, &config->cc_config,
3193 		       sizeof(struct ia_css_cc_config));
3194 		asd->params.config.cc_config = &asd->params.css_param.cc_config;
3195 	}
3196 
3197 	asd->params.config.wb_config = &asd->params.css_param.wb_config;
3198 	asd->params.config.ob_config = &asd->params.css_param.ob_config;
3199 	asd->params.config.de_config = &asd->params.css_param.de_config;
3200 	asd->params.config.dz_config = &asd->params.css_param.dz_config;
3201 	asd->params.config.ce_config = &asd->params.css_param.ce_config;
3202 	asd->params.config.dp_config = &asd->params.css_param.dp_config;
3203 	asd->params.config.nr_config = &asd->params.css_param.nr_config;
3204 	asd->params.config.ee_config = &asd->params.css_param.ee_config;
3205 	asd->params.config.tnr_config = &asd->params.css_param.tnr_config;
3206 	asd->params.css_update_params_needed = true;
3207 
3208 	return 0;
3209 }
3210 
3211 /*
3212  * Function to configure color effect of the image
3213  */
3214 int atomisp_color_effect(struct atomisp_sub_device *asd, int flag,
3215 			 __s32 *effect)
3216 {
3217 	struct ia_css_cc_config *cc_config = NULL;
3218 	struct ia_css_macc_table *macc_table = NULL;
3219 	struct ia_css_ctc_table *ctc_table = NULL;
3220 	int ret = 0;
3221 	struct v4l2_control control;
3222 	struct atomisp_device *isp = asd->isp;
3223 
3224 	if (flag == 0) {
3225 		*effect = asd->params.color_effect;
3226 		return 0;
3227 	}
3228 
3229 	control.id = V4L2_CID_COLORFX;
3230 	control.value = *effect;
3231 	ret =
3232 	    v4l2_s_ctrl(NULL, isp->inputs[asd->input_curr].camera->ctrl_handler,
3233 			&control);
3234 	/*
3235 	 * if set color effect to sensor successfully, return
3236 	 * 0 directly.
3237 	 */
3238 	if (!ret) {
3239 		asd->params.color_effect = (u32)*effect;
3240 		return 0;
3241 	}
3242 
3243 	if (*effect == asd->params.color_effect)
3244 		return 0;
3245 
3246 	/*
3247 	 * isp_subdev->params.macc_en should be set to false.
3248 	 */
3249 	asd->params.macc_en = false;
3250 
3251 	switch (*effect) {
3252 	case V4L2_COLORFX_NONE:
3253 		macc_table = &asd->params.css_param.macc_table;
3254 		asd->params.macc_en = true;
3255 		break;
3256 	case V4L2_COLORFX_SEPIA:
3257 		cc_config = &sepia_cc_config;
3258 		break;
3259 	case V4L2_COLORFX_NEGATIVE:
3260 		cc_config = &nega_cc_config;
3261 		break;
3262 	case V4L2_COLORFX_BW:
3263 		cc_config = &mono_cc_config;
3264 		break;
3265 	case V4L2_COLORFX_SKY_BLUE:
3266 		macc_table = &blue_macc_table;
3267 		asd->params.macc_en = true;
3268 		break;
3269 	case V4L2_COLORFX_GRASS_GREEN:
3270 		macc_table = &green_macc_table;
3271 		asd->params.macc_en = true;
3272 		break;
3273 	case V4L2_COLORFX_SKIN_WHITEN_LOW:
3274 		macc_table = &skin_low_macc_table;
3275 		asd->params.macc_en = true;
3276 		break;
3277 	case V4L2_COLORFX_SKIN_WHITEN:
3278 		macc_table = &skin_medium_macc_table;
3279 		asd->params.macc_en = true;
3280 		break;
3281 	case V4L2_COLORFX_SKIN_WHITEN_HIGH:
3282 		macc_table = &skin_high_macc_table;
3283 		asd->params.macc_en = true;
3284 		break;
3285 	case V4L2_COLORFX_VIVID:
3286 		ctc_table = &vivid_ctc_table;
3287 		break;
3288 	default:
3289 		return -EINVAL;
3290 	}
3291 	atomisp_update_capture_mode(asd);
3292 
3293 	if (cc_config)
3294 		asd->params.config.cc_config = cc_config;
3295 	if (macc_table)
3296 		asd->params.config.macc_table = macc_table;
3297 	if (ctc_table)
3298 		atomisp_css_set_ctc_table(asd, ctc_table);
3299 	asd->params.color_effect = (u32)*effect;
3300 	asd->params.css_update_params_needed = true;
3301 	return 0;
3302 }
3303 
3304 /*
3305  * Function to configure bad pixel correction
3306  */
3307 int atomisp_bad_pixel(struct atomisp_sub_device *asd, int flag,
3308 		      __s32 *value)
3309 {
3310 	if (flag == 0) {
3311 		*value = asd->params.bad_pixel_en;
3312 		return 0;
3313 	}
3314 	asd->params.bad_pixel_en = !!*value;
3315 
3316 	return 0;
3317 }
3318 
3319 /*
3320  * Function to configure bad pixel correction params
3321  */
3322 int atomisp_bad_pixel_param(struct atomisp_sub_device *asd, int flag,
3323 			    struct atomisp_dp_config *config)
3324 {
3325 	if (flag == 0) {
3326 		/* Get bad pixel from current setup */
3327 		if (atomisp_css_get_dp_config(asd, config))
3328 			return -EINVAL;
3329 	} else {
3330 		/* Set bad pixel to isp parameters */
3331 		memcpy(&asd->params.css_param.dp_config, config,
3332 		       sizeof(asd->params.css_param.dp_config));
3333 		asd->params.config.dp_config = &asd->params.css_param.dp_config;
3334 		asd->params.css_update_params_needed = true;
3335 	}
3336 
3337 	return 0;
3338 }
3339 
3340 /*
3341  * Function to enable/disable video image stablization
3342  */
3343 int atomisp_video_stable(struct atomisp_sub_device *asd, int flag,
3344 			 __s32 *value)
3345 {
3346 	if (flag == 0)
3347 		*value = asd->params.video_dis_en;
3348 	else
3349 		asd->params.video_dis_en = !!*value;
3350 
3351 	return 0;
3352 }
3353 
3354 /*
3355  * Function to configure fixed pattern noise
3356  */
3357 int atomisp_fixed_pattern(struct atomisp_sub_device *asd, int flag,
3358 			  __s32 *value)
3359 {
3360 	if (flag == 0) {
3361 		*value = asd->params.fpn_en;
3362 		return 0;
3363 	}
3364 
3365 	if (*value == 0) {
3366 		asd->params.fpn_en = false;
3367 		return 0;
3368 	}
3369 
3370 	/* Add function to get black from from sensor with shutter off */
3371 	return 0;
3372 }
3373 
3374 static unsigned int
3375 atomisp_bytesperline_to_padded_width(unsigned int bytesperline,
3376 				     enum ia_css_frame_format format)
3377 {
3378 	switch (format) {
3379 	case IA_CSS_FRAME_FORMAT_UYVY:
3380 	case IA_CSS_FRAME_FORMAT_YUYV:
3381 	case IA_CSS_FRAME_FORMAT_RAW:
3382 	case IA_CSS_FRAME_FORMAT_RGB565:
3383 		return bytesperline / 2;
3384 	case IA_CSS_FRAME_FORMAT_RGBA888:
3385 		return bytesperline / 4;
3386 	/* The following cases could be removed, but we leave them
3387 	   in to document the formats that are included. */
3388 	case IA_CSS_FRAME_FORMAT_NV11:
3389 	case IA_CSS_FRAME_FORMAT_NV12:
3390 	case IA_CSS_FRAME_FORMAT_NV16:
3391 	case IA_CSS_FRAME_FORMAT_NV21:
3392 	case IA_CSS_FRAME_FORMAT_NV61:
3393 	case IA_CSS_FRAME_FORMAT_YV12:
3394 	case IA_CSS_FRAME_FORMAT_YV16:
3395 	case IA_CSS_FRAME_FORMAT_YUV420:
3396 	case IA_CSS_FRAME_FORMAT_YUV420_16:
3397 	case IA_CSS_FRAME_FORMAT_YUV422:
3398 	case IA_CSS_FRAME_FORMAT_YUV422_16:
3399 	case IA_CSS_FRAME_FORMAT_YUV444:
3400 	case IA_CSS_FRAME_FORMAT_YUV_LINE:
3401 	case IA_CSS_FRAME_FORMAT_PLANAR_RGB888:
3402 	case IA_CSS_FRAME_FORMAT_QPLANE6:
3403 	case IA_CSS_FRAME_FORMAT_BINARY_8:
3404 	default:
3405 		return bytesperline;
3406 	}
3407 }
3408 
3409 static int
3410 atomisp_v4l2_framebuffer_to_css_frame(const struct v4l2_framebuffer *arg,
3411 				      struct ia_css_frame **result)
3412 {
3413 	struct ia_css_frame *res = NULL;
3414 	unsigned int padded_width;
3415 	enum ia_css_frame_format sh_format;
3416 	char *tmp_buf = NULL;
3417 	int ret = 0;
3418 
3419 	sh_format = v4l2_fmt_to_sh_fmt(arg->fmt.pixelformat);
3420 	padded_width = atomisp_bytesperline_to_padded_width(
3421 			   arg->fmt.bytesperline, sh_format);
3422 
3423 	/* Note: the padded width on an ia_css_frame is in elements, not in
3424 	   bytes. The RAW frame we use here should always be a 16bit RAW
3425 	   frame. This is why we bytesperline/2 is equal to the padded with */
3426 	if (ia_css_frame_allocate(&res, arg->fmt.width, arg->fmt.height,
3427 				       sh_format, padded_width, 0)) {
3428 		ret = -ENOMEM;
3429 		goto err;
3430 	}
3431 
3432 	tmp_buf = vmalloc(arg->fmt.sizeimage);
3433 	if (!tmp_buf) {
3434 		ret = -ENOMEM;
3435 		goto err;
3436 	}
3437 	if (copy_from_user(tmp_buf, (void __user __force *)arg->base,
3438 			   arg->fmt.sizeimage)) {
3439 		ret = -EFAULT;
3440 		goto err;
3441 	}
3442 
3443 	if (hmm_store(res->data, tmp_buf, arg->fmt.sizeimage)) {
3444 		ret = -EINVAL;
3445 		goto err;
3446 	}
3447 
3448 err:
3449 	if (ret && res)
3450 		ia_css_frame_free(res);
3451 	vfree(tmp_buf);
3452 	if (ret == 0)
3453 		*result = res;
3454 	return ret;
3455 }
3456 
3457 /*
3458  * Function to configure fixed pattern noise table
3459  */
3460 int atomisp_fixed_pattern_table(struct atomisp_sub_device *asd,
3461 				struct v4l2_framebuffer *arg)
3462 {
3463 	struct ia_css_frame *raw_black_frame = NULL;
3464 	int ret;
3465 
3466 	if (!arg)
3467 		return -EINVAL;
3468 
3469 	ret = atomisp_v4l2_framebuffer_to_css_frame(arg, &raw_black_frame);
3470 	if (ret)
3471 		return ret;
3472 
3473 	if (sh_css_set_black_frame(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream,
3474 				   raw_black_frame) != 0)
3475 		return -ENOMEM;
3476 
3477 	ia_css_frame_free(raw_black_frame);
3478 	return ret;
3479 }
3480 
3481 /*
3482  * Function to configure false color correction
3483  */
3484 int atomisp_false_color(struct atomisp_sub_device *asd, int flag,
3485 			__s32 *value)
3486 {
3487 	/* Get nr config from current setup */
3488 	if (flag == 0) {
3489 		*value = asd->params.false_color;
3490 		return 0;
3491 	}
3492 
3493 	/* Set nr config to isp parameters */
3494 	if (*value) {
3495 		asd->params.config.de_config = NULL;
3496 	} else {
3497 		asd->params.css_param.de_config.pixelnoise = 0;
3498 		asd->params.config.de_config = &asd->params.css_param.de_config;
3499 	}
3500 	asd->params.css_update_params_needed = true;
3501 	asd->params.false_color = *value;
3502 	return 0;
3503 }
3504 
3505 /*
3506  * Function to configure bad pixel correction params
3507  */
3508 int atomisp_false_color_param(struct atomisp_sub_device *asd, int flag,
3509 			      struct atomisp_de_config *config)
3510 {
3511 	if (flag == 0) {
3512 		/* Get false color from current setup */
3513 		if (atomisp_css_get_de_config(asd, config))
3514 			return -EINVAL;
3515 	} else {
3516 		/* Set false color to isp parameters */
3517 		memcpy(&asd->params.css_param.de_config, config,
3518 		       sizeof(asd->params.css_param.de_config));
3519 		asd->params.config.de_config = &asd->params.css_param.de_config;
3520 		asd->params.css_update_params_needed = true;
3521 	}
3522 
3523 	return 0;
3524 }
3525 
3526 /*
3527  * Function to configure white balance params
3528  */
3529 int atomisp_white_balance_param(struct atomisp_sub_device *asd, int flag,
3530 				struct atomisp_wb_config *config)
3531 {
3532 	if (flag == 0) {
3533 		/* Get white balance from current setup */
3534 		if (atomisp_css_get_wb_config(asd, config))
3535 			return -EINVAL;
3536 	} else {
3537 		/* Set white balance to isp parameters */
3538 		memcpy(&asd->params.css_param.wb_config, config,
3539 		       sizeof(asd->params.css_param.wb_config));
3540 		asd->params.config.wb_config = &asd->params.css_param.wb_config;
3541 		asd->params.css_update_params_needed = true;
3542 	}
3543 
3544 	return 0;
3545 }
3546 
3547 int atomisp_3a_config_param(struct atomisp_sub_device *asd, int flag,
3548 			    struct atomisp_3a_config *config)
3549 {
3550 	struct atomisp_device *isp = asd->isp;
3551 
3552 	dev_dbg(isp->dev, ">%s %d\n", __func__, flag);
3553 
3554 	if (flag == 0) {
3555 		/* Get white balance from current setup */
3556 		if (atomisp_css_get_3a_config(asd, config))
3557 			return -EINVAL;
3558 	} else {
3559 		/* Set white balance to isp parameters */
3560 		memcpy(&asd->params.css_param.s3a_config, config,
3561 		       sizeof(asd->params.css_param.s3a_config));
3562 		asd->params.config.s3a_config = &asd->params.css_param.s3a_config;
3563 		asd->params.css_update_params_needed = true;
3564 	}
3565 
3566 	dev_dbg(isp->dev, "<%s %d\n", __func__, flag);
3567 	return 0;
3568 }
3569 
3570 /*
3571  * Function to setup digital zoom
3572  */
3573 int atomisp_digital_zoom(struct atomisp_sub_device *asd, int flag,
3574 			 __s32 *value)
3575 {
3576 	u32 zoom;
3577 	struct atomisp_device *isp = asd->isp;
3578 
3579 	unsigned int max_zoom = MRFLD_MAX_ZOOM_FACTOR;
3580 
3581 	if (flag == 0) {
3582 		atomisp_css_get_zoom_factor(asd, &zoom);
3583 		*value = max_zoom - zoom;
3584 	} else {
3585 		if (*value < 0)
3586 			return -EINVAL;
3587 
3588 		zoom = max_zoom - min_t(u32, max_zoom - 1, *value);
3589 		atomisp_css_set_zoom_factor(asd, zoom);
3590 
3591 		dev_dbg(isp->dev, "%s, zoom: %d\n", __func__, zoom);
3592 		asd->params.css_update_params_needed = true;
3593 	}
3594 
3595 	return 0;
3596 }
3597 
3598 static void __atomisp_update_stream_env(struct atomisp_sub_device *asd,
3599 					u16 stream_index, struct atomisp_input_stream_info *stream_info)
3600 {
3601 	int i;
3602 
3603 	/* assign virtual channel id return from sensor driver query */
3604 	asd->stream_env[stream_index].ch_id = stream_info->ch_id;
3605 	asd->stream_env[stream_index].isys_configs = stream_info->isys_configs;
3606 	for (i = 0; i < stream_info->isys_configs; i++) {
3607 		asd->stream_env[stream_index].isys_info[i].input_format =
3608 		    stream_info->isys_info[i].input_format;
3609 		asd->stream_env[stream_index].isys_info[i].width =
3610 		    stream_info->isys_info[i].width;
3611 		asd->stream_env[stream_index].isys_info[i].height =
3612 		    stream_info->isys_info[i].height;
3613 	}
3614 }
3615 
3616 static void __atomisp_init_stream_info(u16 stream_index,
3617 				       struct atomisp_input_stream_info *stream_info)
3618 {
3619 	int i;
3620 
3621 	stream_info->enable = 1;
3622 	stream_info->stream = stream_index;
3623 	stream_info->ch_id = 0;
3624 	stream_info->isys_configs = 0;
3625 	for (i = 0; i < MAX_STREAMS_PER_CHANNEL; i++) {
3626 		stream_info->isys_info[i].input_format = 0;
3627 		stream_info->isys_info[i].width = 0;
3628 		stream_info->isys_info[i].height = 0;
3629 	}
3630 }
3631 
3632 static void atomisp_fill_pix_format(struct v4l2_pix_format *f,
3633 				    u32 width, u32 height,
3634 				    const struct atomisp_format_bridge *br_fmt)
3635 {
3636 	u32 bytes;
3637 
3638 	f->width = width;
3639 	f->height = height;
3640 	f->pixelformat = br_fmt->pixelformat;
3641 
3642 	/* Adding padding to width for bytesperline calculation */
3643 	width = ia_css_frame_pad_width(width, br_fmt->sh_fmt);
3644 	bytes = BITS_TO_BYTES(br_fmt->depth * width);
3645 
3646 	if (br_fmt->planar)
3647 		f->bytesperline = width;
3648 	else
3649 		f->bytesperline = bytes;
3650 
3651 	f->sizeimage = PAGE_ALIGN(height * bytes);
3652 
3653 	if (f->field == V4L2_FIELD_ANY)
3654 		f->field = V4L2_FIELD_NONE;
3655 
3656 	/*
3657 	 * FIXME: do we need to set this up differently, depending on the
3658 	 * sensor or the pipeline?
3659 	 */
3660 	f->colorspace = V4L2_COLORSPACE_REC709;
3661 	f->ycbcr_enc = V4L2_YCBCR_ENC_709;
3662 	f->xfer_func = V4L2_XFER_FUNC_709;
3663 }
3664 
3665 /* Get sensor padding values for the non padded width x height resolution */
3666 void atomisp_get_padding(struct atomisp_device *isp, u32 width, u32 height,
3667 			 u32 *padding_w, u32 *padding_h)
3668 {
3669 	struct atomisp_input_subdev *input = &isp->inputs[isp->asd.input_curr];
3670 	struct v4l2_rect native_rect = input->native_rect;
3671 	const struct atomisp_in_fmt_conv *fc = NULL;
3672 	u32 min_pad_w = ISP2400_MIN_PAD_W;
3673 	u32 min_pad_h = ISP2400_MIN_PAD_H;
3674 	struct v4l2_mbus_framefmt *sink;
3675 
3676 	if (!input->crop_support) {
3677 		*padding_w = pad_w;
3678 		*padding_h = pad_h;
3679 		return;
3680 	}
3681 
3682 	width = min(width, input->active_rect.width);
3683 	height = min(height, input->active_rect.height);
3684 
3685 	if (input->binning_support && width <= (input->active_rect.width / 2) &&
3686 				      height <= (input->active_rect.height / 2)) {
3687 		native_rect.width /= 2;
3688 		native_rect.height /= 2;
3689 	}
3690 
3691 	*padding_w = min_t(u32, (native_rect.width - width) & ~1, pad_w);
3692 	*padding_h = min_t(u32, (native_rect.height - height) & ~1, pad_h);
3693 
3694 	/* The below minimum padding requirements are for BYT / ISP2400 only */
3695 	if (IS_ISP2401)
3696 		return;
3697 
3698 	sink = atomisp_subdev_get_ffmt(&isp->asd.subdev, NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
3699 				       ATOMISP_SUBDEV_PAD_SINK);
3700 	if (sink)
3701 		fc = atomisp_find_in_fmt_conv(sink->code);
3702 	if (!fc) {
3703 		dev_warn(isp->dev, "%s: Could not get sensor format\n", __func__);
3704 		goto apply_min_padding;
3705 	}
3706 
3707 	/*
3708 	 * The ISP only supports GRBG for other bayer-orders additional padding
3709 	 * is used so that the raw sensor data can be cropped to fix the order.
3710 	 */
3711 	if (fc->bayer_order == IA_CSS_BAYER_ORDER_RGGB ||
3712 	    fc->bayer_order == IA_CSS_BAYER_ORDER_GBRG)
3713 		min_pad_w += 2;
3714 
3715 	if (fc->bayer_order == IA_CSS_BAYER_ORDER_BGGR ||
3716 	    fc->bayer_order == IA_CSS_BAYER_ORDER_GBRG)
3717 		min_pad_h += 2;
3718 
3719 apply_min_padding:
3720 	*padding_w = max_t(u32, *padding_w, min_pad_w);
3721 	*padding_h = max_t(u32, *padding_h, min_pad_h);
3722 }
3723 
3724 static int atomisp_set_crop(struct atomisp_device *isp,
3725 			    const struct v4l2_mbus_framefmt *format,
3726 			    int which)
3727 {
3728 	struct atomisp_input_subdev *input = &isp->inputs[isp->asd.input_curr];
3729 	struct v4l2_subdev_state pad_state = {
3730 		.pads = &input->pad_cfg,
3731 	};
3732 	struct v4l2_subdev_selection sel = {
3733 		.which = which,
3734 		.target = V4L2_SEL_TGT_CROP,
3735 		.r.width = format->width,
3736 		.r.height = format->height,
3737 	};
3738 	int ret;
3739 
3740 	if (!input->crop_support)
3741 		return 0;
3742 
3743 	/* Cropping is done before binning, when binning double the crop rect */
3744 	if (input->binning_support && sel.r.width <= (input->native_rect.width / 2) &&
3745 				      sel.r.height <= (input->native_rect.height / 2)) {
3746 		sel.r.width *= 2;
3747 		sel.r.height *= 2;
3748 	}
3749 
3750 	/* Clamp to avoid top/left calculations overflowing */
3751 	sel.r.width = min(sel.r.width, input->native_rect.width);
3752 	sel.r.height = min(sel.r.height, input->native_rect.height);
3753 
3754 	sel.r.left = ((input->native_rect.width - sel.r.width) / 2) & ~1;
3755 	sel.r.top = ((input->native_rect.height - sel.r.height) / 2) & ~1;
3756 
3757 	ret = v4l2_subdev_call(input->camera, pad, set_selection, &pad_state, &sel);
3758 	if (ret)
3759 		dev_err(isp->dev, "Error setting crop to %ux%u @%ux%u: %d\n",
3760 			sel.r.width, sel.r.height, sel.r.left, sel.r.top, ret);
3761 
3762 	return ret;
3763 }
3764 
3765 /* This function looks up the closest available resolution. */
3766 int atomisp_try_fmt(struct atomisp_device *isp, struct v4l2_pix_format *f,
3767 		    const struct atomisp_format_bridge **fmt_ret,
3768 		    const struct atomisp_format_bridge **snr_fmt_ret)
3769 {
3770 	const struct atomisp_format_bridge *fmt, *snr_fmt;
3771 	struct atomisp_sub_device *asd = &isp->asd;
3772 	struct atomisp_input_subdev *input = &isp->inputs[asd->input_curr];
3773 	struct v4l2_subdev_state pad_state = {
3774 		.pads = &input->pad_cfg,
3775 	};
3776 	struct v4l2_subdev_format format = {
3777 		.which = V4L2_SUBDEV_FORMAT_TRY,
3778 	};
3779 	u32 padding_w, padding_h;
3780 	int ret;
3781 
3782 	if (!input->camera)
3783 		return -EINVAL;
3784 
3785 	fmt = atomisp_get_format_bridge(f->pixelformat);
3786 	/* Currently, raw formats are broken!!! */
3787 	if (!fmt || fmt->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
3788 		f->pixelformat = V4L2_PIX_FMT_YUV420;
3789 
3790 		fmt = atomisp_get_format_bridge(f->pixelformat);
3791 		if (!fmt)
3792 			return -EINVAL;
3793 	}
3794 
3795 	/* The preview pipeline does not support width > 1920 */
3796 	if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW)
3797 		f->width = min_t(u32, f->width, 1920);
3798 
3799 	/*
3800 	 * atomisp_set_fmt() will set the sensor resolution to the requested
3801 	 * resolution + padding. Add padding here and remove it again after
3802 	 * the set_fmt call, like atomisp_set_fmt_to_snr() does.
3803 	 */
3804 	atomisp_get_padding(isp, f->width, f->height, &padding_w, &padding_h);
3805 	v4l2_fill_mbus_format(&format.format, f, fmt->mbus_code);
3806 	format.format.width += padding_w;
3807 	format.format.height += padding_h;
3808 
3809 	dev_dbg(isp->dev, "try_mbus_fmt: asking for %ux%u\n",
3810 		format.format.width, format.format.height);
3811 
3812 	ret = atomisp_set_crop(isp, &format.format, V4L2_SUBDEV_FORMAT_TRY);
3813 	if (ret)
3814 		return ret;
3815 
3816 	ret = v4l2_subdev_call(input->camera, pad, set_fmt, &pad_state, &format);
3817 	if (ret)
3818 		return ret;
3819 
3820 	dev_dbg(isp->dev, "try_mbus_fmt: got %ux%u\n",
3821 		format.format.width, format.format.height);
3822 
3823 	snr_fmt = atomisp_get_format_bridge_from_mbus(format.format.code);
3824 	if (!snr_fmt) {
3825 		dev_err(isp->dev, "unknown sensor format 0x%8.8x\n",
3826 			format.format.code);
3827 		return -EINVAL;
3828 	}
3829 
3830 	f->width = format.format.width - padding_w;
3831 	f->height = format.format.height - padding_h;
3832 
3833 	/*
3834 	 * If the format is jpeg or custom RAW, then the width and height will
3835 	 * not satisfy the normal atomisp requirements and no need to check
3836 	 * the below conditions. So just assign to what is being returned from
3837 	 * the sensor driver.
3838 	 */
3839 	if (f->pixelformat == V4L2_PIX_FMT_JPEG ||
3840 	    f->pixelformat == V4L2_PIX_FMT_CUSTOM_M10MO_RAW)
3841 		goto out_fill_pix_format;
3842 
3843 	/* app vs isp */
3844 	f->width = rounddown(clamp_t(u32, f->width, ATOM_ISP_MIN_WIDTH,
3845 				     ATOM_ISP_MAX_WIDTH), ATOM_ISP_STEP_WIDTH);
3846 	f->height = rounddown(clamp_t(u32, f->height, ATOM_ISP_MIN_HEIGHT,
3847 				      ATOM_ISP_MAX_HEIGHT), ATOM_ISP_STEP_HEIGHT);
3848 
3849 out_fill_pix_format:
3850 	atomisp_fill_pix_format(f, f->width, f->height, fmt);
3851 
3852 	if (fmt_ret)
3853 		*fmt_ret = fmt;
3854 
3855 	if (snr_fmt_ret)
3856 		*snr_fmt_ret = snr_fmt;
3857 
3858 	return 0;
3859 }
3860 
3861 enum mipi_port_id atomisp_port_to_mipi_port(struct atomisp_device *isp,
3862 					    enum atomisp_camera_port port)
3863 {
3864 	switch (port) {
3865 	case ATOMISP_CAMERA_PORT_PRIMARY:
3866 		return MIPI_PORT0_ID;
3867 	case ATOMISP_CAMERA_PORT_SECONDARY:
3868 		return MIPI_PORT1_ID;
3869 	case ATOMISP_CAMERA_PORT_TERTIARY:
3870 		return MIPI_PORT2_ID;
3871 	default:
3872 		dev_err(isp->dev, "unsupported port: %d\n", port);
3873 		return MIPI_PORT0_ID;
3874 	}
3875 }
3876 
3877 static inline int atomisp_set_sensor_mipi_to_isp(
3878     struct atomisp_sub_device *asd,
3879     enum atomisp_input_stream_id stream_id,
3880     struct camera_mipi_info *mipi_info)
3881 {
3882 	struct v4l2_control ctrl;
3883 	struct atomisp_device *isp = asd->isp;
3884 	struct atomisp_input_subdev *input = &isp->inputs[asd->input_curr];
3885 	const struct atomisp_in_fmt_conv *fc;
3886 	int mipi_freq = 0;
3887 	unsigned int input_format, bayer_order;
3888 	enum atomisp_input_format metadata_format = ATOMISP_INPUT_FORMAT_EMBEDDED;
3889 	u32 mipi_port, metadata_width = 0, metadata_height = 0;
3890 
3891 	ctrl.id = V4L2_CID_LINK_FREQ;
3892 	if (v4l2_g_ctrl(input->camera->ctrl_handler, &ctrl) == 0)
3893 		mipi_freq = ctrl.value;
3894 
3895 	if (asd->stream_env[stream_id].isys_configs == 1) {
3896 		input_format =
3897 		    asd->stream_env[stream_id].isys_info[0].input_format;
3898 		atomisp_css_isys_set_format(asd, stream_id,
3899 					    input_format, IA_CSS_STREAM_DEFAULT_ISYS_STREAM_IDX);
3900 	} else if (asd->stream_env[stream_id].isys_configs == 2) {
3901 		atomisp_css_isys_two_stream_cfg_update_stream1(
3902 		    asd, stream_id,
3903 		    asd->stream_env[stream_id].isys_info[0].input_format,
3904 		    asd->stream_env[stream_id].isys_info[0].width,
3905 		    asd->stream_env[stream_id].isys_info[0].height);
3906 
3907 		atomisp_css_isys_two_stream_cfg_update_stream2(
3908 		    asd, stream_id,
3909 		    asd->stream_env[stream_id].isys_info[1].input_format,
3910 		    asd->stream_env[stream_id].isys_info[1].width,
3911 		    asd->stream_env[stream_id].isys_info[1].height);
3912 	}
3913 
3914 	/* Compatibility for sensors which provide no media bus code
3915 	 * in s_mbus_framefmt() nor support pad formats. */
3916 	if (mipi_info && mipi_info->input_format != -1) {
3917 		bayer_order = mipi_info->raw_bayer_order;
3918 
3919 		/* Input stream config is still needs configured */
3920 		/* TODO: Check if this is necessary */
3921 		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(
3922 			 mipi_info->input_format);
3923 		if (!fc)
3924 			return -EINVAL;
3925 		input_format = fc->atomisp_in_fmt;
3926 		metadata_format = mipi_info->metadata_format;
3927 		metadata_width = mipi_info->metadata_width;
3928 		metadata_height = mipi_info->metadata_height;
3929 	} else {
3930 		struct v4l2_mbus_framefmt *sink;
3931 
3932 		sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
3933 					       V4L2_SUBDEV_FORMAT_ACTIVE,
3934 					       ATOMISP_SUBDEV_PAD_SINK);
3935 		fc = atomisp_find_in_fmt_conv(sink->code);
3936 		if (!fc)
3937 			return -EINVAL;
3938 		input_format = fc->atomisp_in_fmt;
3939 		bayer_order = fc->bayer_order;
3940 	}
3941 
3942 	atomisp_css_input_set_format(asd, stream_id, input_format);
3943 	atomisp_css_input_set_bayer_order(asd, stream_id, bayer_order);
3944 
3945 	fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(metadata_format);
3946 	if (!fc)
3947 		return -EINVAL;
3948 
3949 	input_format = fc->atomisp_in_fmt;
3950 	mipi_port = atomisp_port_to_mipi_port(isp, input->port);
3951 	atomisp_css_input_configure_port(asd, mipi_port,
3952 					 isp->sensor_lanes[mipi_port],
3953 					 0xffff4, mipi_freq,
3954 					 input_format,
3955 					 metadata_width, metadata_height);
3956 	return 0;
3957 }
3958 
3959 static int configure_pp_input_nop(struct atomisp_sub_device *asd,
3960 				  unsigned int width, unsigned int height)
3961 {
3962 	return 0;
3963 }
3964 
3965 static int configure_output_nop(struct atomisp_sub_device *asd,
3966 				unsigned int width, unsigned int height,
3967 				unsigned int min_width,
3968 				enum ia_css_frame_format sh_fmt)
3969 {
3970 	return 0;
3971 }
3972 
3973 static int get_frame_info_nop(struct atomisp_sub_device *asd,
3974 			      struct ia_css_frame_info *finfo)
3975 {
3976 	return 0;
3977 }
3978 
3979 /*
3980  * Resets CSS parameters that depend on input resolution.
3981  *
3982  * Update params like CSS RAW binning, 2ppc mode and pp_input
3983  * which depend on input size, but are not automatically
3984  * handled in CSS when the input resolution is changed.
3985  */
3986 static int css_input_resolution_changed(struct atomisp_sub_device *asd,
3987 					struct v4l2_mbus_framefmt *ffmt)
3988 {
3989 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf;
3990 	unsigned int i;
3991 
3992 	dev_dbg(asd->isp->dev, "css_input_resolution_changed to %ux%u\n",
3993 		ffmt->width, ffmt->height);
3994 
3995 	if (IS_ISP2401)
3996 		atomisp_css_input_set_two_pixels_per_clock(asd, false);
3997 	else
3998 		atomisp_css_input_set_two_pixels_per_clock(asd, true);
3999 
4000 	/*
4001 	 * If sensor input changed, which means metadata resolution changed
4002 	 * together. Release all metadata buffers here to let it re-allocated
4003 	 * next time in reqbufs.
4004 	 */
4005 	for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
4006 		list_for_each_entry_safe(md_buf, _md_buf, &asd->metadata[i],
4007 					 list) {
4008 			atomisp_css_free_metadata_buffer(md_buf);
4009 			list_del(&md_buf->list);
4010 			kfree(md_buf);
4011 		}
4012 	}
4013 	return 0;
4014 
4015 	/*
4016 	 * TODO: atomisp_css_preview_configure_pp_input() not
4017 	 *       reset due to CSS bug tracked as PSI BZ 115124
4018 	 */
4019 }
4020 
4021 static int atomisp_set_fmt_to_isp(struct video_device *vdev,
4022 				  struct ia_css_frame_info *output_info,
4023 				  const struct v4l2_pix_format *pix)
4024 {
4025 	struct camera_mipi_info *mipi_info;
4026 	struct atomisp_device *isp = video_get_drvdata(vdev);
4027 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
4028 	struct atomisp_input_subdev *input = &isp->inputs[asd->input_curr];
4029 	const struct atomisp_format_bridge *format;
4030 	struct v4l2_rect *isp_sink_crop;
4031 	enum ia_css_pipe_id pipe_id;
4032 	int (*configure_output)(struct atomisp_sub_device *asd,
4033 				unsigned int width, unsigned int height,
4034 				unsigned int min_width,
4035 				enum ia_css_frame_format sh_fmt) =
4036 				    configure_output_nop;
4037 	int (*get_frame_info)(struct atomisp_sub_device *asd,
4038 			      struct ia_css_frame_info *finfo) =
4039 				  get_frame_info_nop;
4040 	int (*configure_pp_input)(struct atomisp_sub_device *asd,
4041 				  unsigned int width, unsigned int height) =
4042 				      configure_pp_input_nop;
4043 	const struct atomisp_in_fmt_conv *fc = NULL;
4044 	int ret, i;
4045 
4046 	isp_sink_crop = atomisp_subdev_get_rect(
4047 			    &asd->subdev, NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
4048 			    ATOMISP_SUBDEV_PAD_SINK, V4L2_SEL_TGT_CROP);
4049 
4050 	format = atomisp_get_format_bridge(pix->pixelformat);
4051 	if (!format)
4052 		return -EINVAL;
4053 
4054 	if (input->type != TEST_PATTERN) {
4055 		mipi_info = atomisp_to_sensor_mipi_info(input->camera);
4056 
4057 		if (atomisp_set_sensor_mipi_to_isp(asd, ATOMISP_INPUT_STREAM_GENERAL,
4058 						   mipi_info))
4059 			return -EINVAL;
4060 
4061 		if (mipi_info)
4062 			fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(mipi_info->input_format);
4063 
4064 		if (!fc)
4065 			fc = atomisp_find_in_fmt_conv(
4066 				 atomisp_subdev_get_ffmt(&asd->subdev,
4067 							 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
4068 							 ATOMISP_SUBDEV_PAD_SINK)->code);
4069 		if (!fc)
4070 			return -EINVAL;
4071 		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&
4072 		    raw_output_format_match_input(fc->atomisp_in_fmt,
4073 						  pix->pixelformat))
4074 			return -EINVAL;
4075 	}
4076 
4077 	/*
4078 	 * Configure viewfinder also when vfpp is disabled: the
4079 	 * CSS still requires viewfinder configuration.
4080 	 */
4081 	{
4082 		u32 width, height;
4083 
4084 		if (pix->width < 640 || pix->height < 480) {
4085 			width = pix->width;
4086 			height = pix->height;
4087 		} else {
4088 			width = 640;
4089 			height = 480;
4090 		}
4091 
4092 		if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO ||
4093 		    asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
4094 			atomisp_css_video_configure_viewfinder(asd, width, height, 0,
4095 							       IA_CSS_FRAME_FORMAT_NV12);
4096 		} else if (asd->run_mode->val == ATOMISP_RUN_MODE_STILL_CAPTURE ||
4097 			   asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
4098 			atomisp_css_capture_configure_viewfinder(asd, width, height, 0,
4099 								 IA_CSS_FRAME_FORMAT_NV12);
4100 		}
4101 	}
4102 
4103 	atomisp_css_input_set_mode(asd, IA_CSS_INPUT_MODE_BUFFERED_SENSOR);
4104 
4105 	for (i = 0; i < IA_CSS_PIPE_ID_NUM; i++)
4106 		asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].pipe_extra_configs[i].disable_vf_pp = asd->vfpp->val != ATOMISP_VFPP_ENABLE;
4107 
4108 	/* ISP2401 new input system need to use copy pipe */
4109 	if (asd->copy_mode) {
4110 		pipe_id = IA_CSS_PIPE_ID_COPY;
4111 		atomisp_css_capture_enable_online(asd, ATOMISP_INPUT_STREAM_GENERAL, false);
4112 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
4113 		/* video same in continuouscapture and online modes */
4114 		configure_output = atomisp_css_video_configure_output;
4115 		get_frame_info = atomisp_css_video_get_output_frame_info;
4116 		pipe_id = IA_CSS_PIPE_ID_VIDEO;
4117 	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
4118 		configure_output = atomisp_css_video_configure_output;
4119 		get_frame_info = atomisp_css_video_get_output_frame_info;
4120 		pipe_id = IA_CSS_PIPE_ID_VIDEO;
4121 	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
4122 		configure_output = atomisp_css_preview_configure_output;
4123 		get_frame_info = atomisp_css_preview_get_output_frame_info;
4124 		configure_pp_input = atomisp_css_preview_configure_pp_input;
4125 		pipe_id = IA_CSS_PIPE_ID_PREVIEW;
4126 	} else {
4127 		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
4128 			atomisp_css_capture_set_mode(asd, IA_CSS_CAPTURE_MODE_RAW);
4129 			atomisp_css_enable_dz(asd, false);
4130 		} else {
4131 			atomisp_update_capture_mode(asd);
4132 		}
4133 
4134 		/* in case of ANR, force capture pipe to offline mode */
4135 		atomisp_css_capture_enable_online(asd, ATOMISP_INPUT_STREAM_GENERAL,
4136 						  !asd->params.low_light);
4137 
4138 		configure_output = atomisp_css_capture_configure_output;
4139 		get_frame_info = atomisp_css_capture_get_output_frame_info;
4140 		configure_pp_input = atomisp_css_capture_configure_pp_input;
4141 		pipe_id = IA_CSS_PIPE_ID_CAPTURE;
4142 
4143 		if (asd->run_mode->val != ATOMISP_RUN_MODE_STILL_CAPTURE) {
4144 			dev_err(isp->dev,
4145 				"Need to set the running mode first\n");
4146 			asd->run_mode->val = ATOMISP_RUN_MODE_STILL_CAPTURE;
4147 		}
4148 	}
4149 
4150 	if (asd->copy_mode)
4151 		ret = atomisp_css_copy_configure_output(asd, ATOMISP_INPUT_STREAM_GENERAL,
4152 							pix->width, pix->height,
4153 							format->planar ? pix->bytesperline :
4154 							pix->bytesperline * 8 / format->depth,
4155 							format->sh_fmt);
4156 	else
4157 		ret = configure_output(asd, pix->width, pix->height,
4158 				       format->planar ? pix->bytesperline :
4159 				       pix->bytesperline * 8 / format->depth,
4160 				       format->sh_fmt);
4161 	if (ret) {
4162 		dev_err(isp->dev, "configure_output %ux%u, format %8.8x\n",
4163 			pix->width, pix->height, format->sh_fmt);
4164 		return -EINVAL;
4165 	}
4166 
4167 	ret = configure_pp_input(asd, isp_sink_crop->width, isp_sink_crop->height);
4168 	if (ret) {
4169 		dev_err(isp->dev, "configure_pp_input %ux%u\n",
4170 			isp_sink_crop->width,
4171 			isp_sink_crop->height);
4172 		return -EINVAL;
4173 	}
4174 	if (asd->copy_mode)
4175 		ret = atomisp_css_copy_get_output_frame_info(asd,
4176 							     ATOMISP_INPUT_STREAM_GENERAL,
4177 							     output_info);
4178 	else
4179 		ret = get_frame_info(asd, output_info);
4180 	if (ret) {
4181 		dev_err(isp->dev, "__get_frame_info %ux%u (padded to %u) returned %d\n",
4182 			pix->width, pix->height, pix->bytesperline, ret);
4183 		return ret;
4184 	}
4185 
4186 	atomisp_update_grid_info(asd, pipe_id);
4187 	return 0;
4188 }
4189 
4190 static void atomisp_get_dis_envelop(struct atomisp_sub_device *asd,
4191 				    unsigned int width, unsigned int height,
4192 				    unsigned int *dvs_env_w, unsigned int *dvs_env_h)
4193 {
4194 	if (asd->params.video_dis_en &&
4195 	    asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
4196 		/* envelope is 20% of the output resolution */
4197 		/*
4198 		 * dvs envelope cannot be round up.
4199 		 * it would cause ISP timeout and color switch issue
4200 		 */
4201 		*dvs_env_w = rounddown(width / 5, ATOM_ISP_STEP_WIDTH);
4202 		*dvs_env_h = rounddown(height / 5, ATOM_ISP_STEP_HEIGHT);
4203 	}
4204 
4205 	asd->params.dis_proj_data_valid = false;
4206 	asd->params.css_update_params_needed = true;
4207 }
4208 
4209 static void atomisp_check_copy_mode(struct atomisp_sub_device *asd,
4210 				    const struct v4l2_pix_format *f)
4211 {
4212 	struct v4l2_mbus_framefmt *sink, *src;
4213 
4214 	if (!IS_ISP2401) {
4215 		/* Only used for the new input system */
4216 		asd->copy_mode = false;
4217 		return;
4218 	}
4219 
4220 	sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
4221 				       V4L2_SUBDEV_FORMAT_ACTIVE, ATOMISP_SUBDEV_PAD_SINK);
4222 	src = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
4223 				      V4L2_SUBDEV_FORMAT_ACTIVE, ATOMISP_SUBDEV_PAD_SOURCE);
4224 
4225 	if (sink->code == src->code && sink->width == f->width && sink->height == f->height)
4226 		asd->copy_mode = true;
4227 	else
4228 		asd->copy_mode = false;
4229 
4230 	dev_dbg(asd->isp->dev, "copy_mode: %d\n", asd->copy_mode);
4231 }
4232 
4233 static int atomisp_set_fmt_to_snr(struct video_device *vdev, const struct v4l2_pix_format *f,
4234 				  unsigned int dvs_env_w, unsigned int dvs_env_h)
4235 {
4236 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
4237 	struct atomisp_sub_device *asd = pipe->asd;
4238 	struct atomisp_device *isp = asd->isp;
4239 	struct atomisp_input_subdev *input = &isp->inputs[asd->input_curr];
4240 	const struct atomisp_format_bridge *format;
4241 	struct v4l2_subdev_state pad_state = {
4242 		.pads = &input->pad_cfg,
4243 	};
4244 	struct v4l2_subdev_format vformat = {
4245 		.which = V4L2_SUBDEV_FORMAT_TRY,
4246 	};
4247 	struct v4l2_mbus_framefmt *ffmt = &vformat.format;
4248 	struct v4l2_mbus_framefmt *req_ffmt;
4249 	struct atomisp_input_stream_info *stream_info =
4250 	    (struct atomisp_input_stream_info *)ffmt->reserved;
4251 	int ret;
4252 
4253 	format = atomisp_get_format_bridge(f->pixelformat);
4254 	if (!format)
4255 		return -EINVAL;
4256 
4257 	v4l2_fill_mbus_format(ffmt, f, format->mbus_code);
4258 	ffmt->height += asd->sink_pad_padding_h + dvs_env_h;
4259 	ffmt->width += asd->sink_pad_padding_w + dvs_env_w;
4260 
4261 	dev_dbg(isp->dev, "s_mbus_fmt: ask %ux%u (padding %ux%u, dvs %ux%u)\n",
4262 		ffmt->width, ffmt->height, asd->sink_pad_padding_w, asd->sink_pad_padding_h,
4263 		dvs_env_w, dvs_env_h);
4264 
4265 	__atomisp_init_stream_info(ATOMISP_INPUT_STREAM_GENERAL, stream_info);
4266 
4267 	req_ffmt = ffmt;
4268 
4269 	/* Disable dvs if resolution can't be supported by sensor */
4270 	if (asd->params.video_dis_en && asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
4271 		ret = atomisp_set_crop(isp, &vformat.format, V4L2_SUBDEV_FORMAT_TRY);
4272 		if (ret)
4273 			return ret;
4274 
4275 		vformat.which = V4L2_SUBDEV_FORMAT_TRY;
4276 		ret = v4l2_subdev_call(input->camera, pad, set_fmt, &pad_state, &vformat);
4277 		if (ret)
4278 			return ret;
4279 
4280 		dev_dbg(isp->dev, "video dis: sensor width: %d, height: %d\n",
4281 			ffmt->width, ffmt->height);
4282 
4283 		if (ffmt->width < req_ffmt->width ||
4284 		    ffmt->height < req_ffmt->height) {
4285 			req_ffmt->height -= dvs_env_h;
4286 			req_ffmt->width -= dvs_env_w;
4287 			ffmt = req_ffmt;
4288 			dev_warn(isp->dev,
4289 				 "can not enable video dis due to sensor limitation.");
4290 			asd->params.video_dis_en = false;
4291 		}
4292 	}
4293 
4294 	ret = atomisp_set_crop(isp, &vformat.format, V4L2_SUBDEV_FORMAT_ACTIVE);
4295 	if (ret)
4296 		return ret;
4297 
4298 	vformat.which = V4L2_SUBDEV_FORMAT_ACTIVE;
4299 	ret = v4l2_subdev_call(input->camera, pad, set_fmt, NULL, &vformat);
4300 	if (ret)
4301 		return ret;
4302 
4303 	__atomisp_update_stream_env(asd, ATOMISP_INPUT_STREAM_GENERAL, stream_info);
4304 
4305 	dev_dbg(isp->dev, "sensor width: %d, height: %d\n",
4306 		ffmt->width, ffmt->height);
4307 
4308 	if (ffmt->width < ATOM_ISP_STEP_WIDTH ||
4309 	    ffmt->height < ATOM_ISP_STEP_HEIGHT)
4310 		return -EINVAL;
4311 
4312 	if (asd->params.video_dis_en && asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO &&
4313 	    (ffmt->width < req_ffmt->width || ffmt->height < req_ffmt->height)) {
4314 		dev_warn(isp->dev,
4315 			 "can not enable video dis due to sensor limitation.");
4316 		asd->params.video_dis_en = false;
4317 	}
4318 
4319 	atomisp_subdev_set_ffmt(&asd->subdev, NULL,
4320 				V4L2_SUBDEV_FORMAT_ACTIVE,
4321 				ATOMISP_SUBDEV_PAD_SINK, ffmt);
4322 
4323 	return css_input_resolution_changed(asd, ffmt);
4324 }
4325 
4326 int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
4327 {
4328 	struct atomisp_device *isp = video_get_drvdata(vdev);
4329 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
4330 	struct atomisp_sub_device *asd = pipe->asd;
4331 	const struct atomisp_format_bridge *format_bridge;
4332 	const struct atomisp_format_bridge *snr_format_bridge;
4333 	struct ia_css_frame_info output_info;
4334 	unsigned int dvs_env_w = 0, dvs_env_h = 0;
4335 	struct v4l2_mbus_framefmt isp_source_fmt = {0};
4336 	struct v4l2_rect isp_sink_crop;
4337 	int ret;
4338 
4339 	ret = atomisp_pipe_check(pipe, true);
4340 	if (ret)
4341 		return ret;
4342 
4343 	dev_dbg(isp->dev,
4344 		"setting resolution %ux%u bytesperline %u\n",
4345 		f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.bytesperline);
4346 
4347 	/* Ensure that the resolution is equal or below the maximum supported */
4348 	ret = atomisp_try_fmt(isp, &f->fmt.pix, &format_bridge, &snr_format_bridge);
4349 	if (ret)
4350 		return ret;
4351 
4352 	pipe->sh_fmt = format_bridge->sh_fmt;
4353 	pipe->pix.pixelformat = format_bridge->pixelformat;
4354 
4355 	atomisp_subdev_get_ffmt(&asd->subdev, NULL,
4356 				V4L2_SUBDEV_FORMAT_ACTIVE,
4357 				ATOMISP_SUBDEV_PAD_SINK)->code =
4358 				    snr_format_bridge->mbus_code;
4359 
4360 	isp_source_fmt.code = format_bridge->mbus_code;
4361 	atomisp_subdev_set_ffmt(&asd->subdev, NULL,
4362 				V4L2_SUBDEV_FORMAT_ACTIVE,
4363 				ATOMISP_SUBDEV_PAD_SOURCE, &isp_source_fmt);
4364 
4365 	if (atomisp_subdev_format_conversion(asd)) {
4366 		atomisp_get_padding(isp, f->fmt.pix.width, f->fmt.pix.height,
4367 				    &asd->sink_pad_padding_w, &asd->sink_pad_padding_h);
4368 	} else {
4369 		asd->sink_pad_padding_w = 0;
4370 		asd->sink_pad_padding_h = 0;
4371 	}
4372 
4373 	atomisp_get_dis_envelop(asd, f->fmt.pix.width, f->fmt.pix.height,
4374 				&dvs_env_w, &dvs_env_h);
4375 
4376 	ret = atomisp_set_fmt_to_snr(vdev, &f->fmt.pix, dvs_env_w, dvs_env_h);
4377 	if (ret) {
4378 		dev_warn(isp->dev,
4379 			 "Set format to sensor failed with %d\n", ret);
4380 		return -EINVAL;
4381 	}
4382 
4383 	atomisp_csi_lane_config(isp);
4384 
4385 	atomisp_check_copy_mode(asd, &f->fmt.pix);
4386 
4387 	isp_sink_crop = *atomisp_subdev_get_rect(&asd->subdev, NULL,
4388 			V4L2_SUBDEV_FORMAT_ACTIVE,
4389 			ATOMISP_SUBDEV_PAD_SINK,
4390 			V4L2_SEL_TGT_CROP);
4391 
4392 	/* Try to enable YUV downscaling if ISP input is 10 % (either
4393 	 * width or height) bigger than the desired result. */
4394 	if (!IS_MOFD ||
4395 	    isp_sink_crop.width * 9 / 10 < f->fmt.pix.width ||
4396 	    isp_sink_crop.height * 9 / 10 < f->fmt.pix.height ||
4397 	    (atomisp_subdev_format_conversion(asd) &&
4398 	     (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO ||
4399 	      asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER))) {
4400 		isp_sink_crop.width = f->fmt.pix.width;
4401 		isp_sink_crop.height = f->fmt.pix.height;
4402 
4403 		atomisp_subdev_set_selection(&asd->subdev, NULL,
4404 					     V4L2_SUBDEV_FORMAT_ACTIVE,
4405 					     ATOMISP_SUBDEV_PAD_SOURCE, V4L2_SEL_TGT_COMPOSE,
4406 					     0, &isp_sink_crop);
4407 	} else {
4408 		struct v4l2_rect main_compose = {0};
4409 
4410 		main_compose.width = isp_sink_crop.width;
4411 		main_compose.height =
4412 		    DIV_ROUND_UP(main_compose.width * f->fmt.pix.height,
4413 				 f->fmt.pix.width);
4414 		if (main_compose.height > isp_sink_crop.height) {
4415 			main_compose.height = isp_sink_crop.height;
4416 			main_compose.width =
4417 			    DIV_ROUND_UP(main_compose.height *
4418 					 f->fmt.pix.width,
4419 					 f->fmt.pix.height);
4420 		}
4421 
4422 		atomisp_subdev_set_selection(&asd->subdev, NULL,
4423 					     V4L2_SUBDEV_FORMAT_ACTIVE,
4424 					     ATOMISP_SUBDEV_PAD_SOURCE,
4425 					     V4L2_SEL_TGT_COMPOSE, 0,
4426 					     &main_compose);
4427 	}
4428 
4429 	ret = atomisp_set_fmt_to_isp(vdev, &output_info, &f->fmt.pix);
4430 	if (ret) {
4431 		dev_warn(isp->dev, "Can't set format on ISP. Error %d\n", ret);
4432 		return -EINVAL;
4433 	}
4434 
4435 	atomisp_fill_pix_format(&pipe->pix, f->fmt.pix.width, f->fmt.pix.height, format_bridge);
4436 
4437 	f->fmt.pix = pipe->pix;
4438 	f->fmt.pix.priv = PAGE_ALIGN(pipe->pix.width *
4439 				     pipe->pix.height * 2);
4440 
4441 	dev_dbg(isp->dev, "%s: %dx%d, image size: %d, %d bytes per line\n",
4442 		__func__,
4443 		f->fmt.pix.width, f->fmt.pix.height,
4444 		f->fmt.pix.sizeimage, f->fmt.pix.bytesperline);
4445 
4446 	return 0;
4447 }
4448 
4449 int atomisp_set_shading_table(struct atomisp_sub_device *asd,
4450 			      struct atomisp_shading_table *user_shading_table)
4451 {
4452 	struct ia_css_shading_table *shading_table;
4453 	struct ia_css_shading_table *free_table;
4454 	unsigned int len_table;
4455 	int i;
4456 	int ret = 0;
4457 
4458 	if (!user_shading_table)
4459 		return -EINVAL;
4460 
4461 	if (!user_shading_table->enable) {
4462 		asd->params.config.shading_table = NULL;
4463 		asd->params.sc_en = false;
4464 		return 0;
4465 	}
4466 
4467 	/* If enabling, all tables must be set */
4468 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
4469 		if (!user_shading_table->data[i])
4470 			return -EINVAL;
4471 	}
4472 
4473 	/* Shading table size per color */
4474 	if (user_shading_table->width > SH_CSS_MAX_SCTBL_WIDTH_PER_COLOR ||
4475 	    user_shading_table->height > SH_CSS_MAX_SCTBL_HEIGHT_PER_COLOR)
4476 		return -EINVAL;
4477 
4478 	shading_table = atomisp_css_shading_table_alloc(
4479 			    user_shading_table->width, user_shading_table->height);
4480 	if (!shading_table)
4481 		return -ENOMEM;
4482 
4483 	len_table = user_shading_table->width * user_shading_table->height *
4484 		    ATOMISP_SC_TYPE_SIZE;
4485 	for (i = 0; i < ATOMISP_NUM_SC_COLORS; i++) {
4486 		ret = copy_from_user(shading_table->data[i],
4487 				     (void __user *)user_shading_table->data[i],
4488 				     len_table);
4489 		if (ret) {
4490 			free_table = shading_table;
4491 			ret = -EFAULT;
4492 			goto out;
4493 		}
4494 	}
4495 	shading_table->sensor_width = user_shading_table->sensor_width;
4496 	shading_table->sensor_height = user_shading_table->sensor_height;
4497 	shading_table->fraction_bits = user_shading_table->fraction_bits;
4498 
4499 	free_table = asd->params.css_param.shading_table;
4500 	asd->params.css_param.shading_table = shading_table;
4501 	asd->params.config.shading_table = shading_table;
4502 	asd->params.sc_en = true;
4503 
4504 out:
4505 	if (free_table)
4506 		atomisp_css_shading_table_free(free_table);
4507 
4508 	return ret;
4509 }
4510 
4511 int atomisp_flash_enable(struct atomisp_sub_device *asd, int num_frames)
4512 {
4513 	struct atomisp_device *isp = asd->isp;
4514 
4515 	if (num_frames < 0) {
4516 		dev_dbg(isp->dev, "%s ERROR: num_frames: %d\n", __func__,
4517 			num_frames);
4518 		return -EINVAL;
4519 	}
4520 	/* a requested flash is still in progress. */
4521 	if (num_frames && asd->params.flash_state != ATOMISP_FLASH_IDLE) {
4522 		dev_dbg(isp->dev, "%s flash busy: %d frames left: %d\n",
4523 			__func__, asd->params.flash_state,
4524 			asd->params.num_flash_frames);
4525 		return -EBUSY;
4526 	}
4527 
4528 	asd->params.num_flash_frames = num_frames;
4529 	asd->params.flash_state = ATOMISP_FLASH_REQUESTED;
4530 	return 0;
4531 }
4532 
4533 static int __checking_exp_id(struct atomisp_sub_device *asd, int exp_id)
4534 {
4535 	struct atomisp_device *isp = asd->isp;
4536 
4537 	if (!asd->enable_raw_buffer_lock->val) {
4538 		dev_warn(isp->dev, "%s Raw Buffer Lock is disable.\n", __func__);
4539 		return -EINVAL;
4540 	}
4541 	if (!asd->streaming) {
4542 		dev_err(isp->dev, "%s streaming %d invalid exp_id %d.\n",
4543 			__func__, exp_id, asd->streaming);
4544 		return -EINVAL;
4545 	}
4546 	if ((exp_id > ATOMISP_MAX_EXP_ID) || (exp_id <= 0)) {
4547 		dev_err(isp->dev, "%s exp_id %d invalid.\n", __func__, exp_id);
4548 		return -EINVAL;
4549 	}
4550 	return 0;
4551 }
4552 
4553 void atomisp_init_raw_buffer_bitmap(struct atomisp_sub_device *asd)
4554 {
4555 	unsigned long flags;
4556 
4557 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
4558 	memset(asd->raw_buffer_bitmap, 0, sizeof(asd->raw_buffer_bitmap));
4559 	asd->raw_buffer_locked_count = 0;
4560 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
4561 }
4562 
4563 static int __is_raw_buffer_locked(struct atomisp_sub_device *asd, int exp_id)
4564 {
4565 	int *bitmap, bit;
4566 	unsigned long flags;
4567 	int ret;
4568 
4569 	if (__checking_exp_id(asd, exp_id))
4570 		return -EINVAL;
4571 
4572 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
4573 	bit = exp_id % 32;
4574 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
4575 	ret = ((*bitmap) & (1 << bit));
4576 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
4577 	return !ret;
4578 }
4579 
4580 static int __clear_raw_buffer_bitmap(struct atomisp_sub_device *asd, int exp_id)
4581 {
4582 	int *bitmap, bit;
4583 	unsigned long flags;
4584 
4585 	if (__is_raw_buffer_locked(asd, exp_id))
4586 		return -EINVAL;
4587 
4588 	bitmap = asd->raw_buffer_bitmap + exp_id / 32;
4589 	bit = exp_id % 32;
4590 	spin_lock_irqsave(&asd->raw_buffer_bitmap_lock, flags);
4591 	(*bitmap) &= ~(1 << bit);
4592 	asd->raw_buffer_locked_count--;
4593 	spin_unlock_irqrestore(&asd->raw_buffer_bitmap_lock, flags);
4594 
4595 	dev_dbg(asd->isp->dev, "%s: exp_id %d,  raw_buffer_locked_count %d\n",
4596 		__func__, exp_id, asd->raw_buffer_locked_count);
4597 	return 0;
4598 }
4599 
4600 int atomisp_exp_id_capture(struct atomisp_sub_device *asd, int *exp_id)
4601 {
4602 	struct atomisp_device *isp = asd->isp;
4603 	int value = *exp_id;
4604 	int ret;
4605 
4606 	lockdep_assert_held(&isp->mutex);
4607 
4608 	ret = __is_raw_buffer_locked(asd, value);
4609 	if (ret) {
4610 		dev_err(isp->dev, "%s exp_id %d invalid %d.\n", __func__, value, ret);
4611 		return -EINVAL;
4612 	}
4613 
4614 	dev_dbg(isp->dev, "%s exp_id %d\n", __func__, value);
4615 	ret = atomisp_css_exp_id_capture(asd, value);
4616 	if (ret) {
4617 		dev_err(isp->dev, "%s exp_id %d failed.\n", __func__, value);
4618 		return -EIO;
4619 	}
4620 	return 0;
4621 }
4622 
4623 int atomisp_exp_id_unlock(struct atomisp_sub_device *asd, int *exp_id)
4624 {
4625 	struct atomisp_device *isp = asd->isp;
4626 	int value = *exp_id;
4627 	int ret;
4628 
4629 	lockdep_assert_held(&isp->mutex);
4630 
4631 	ret = __clear_raw_buffer_bitmap(asd, value);
4632 	if (ret) {
4633 		dev_err(isp->dev, "%s exp_id %d invalid %d.\n", __func__, value, ret);
4634 		return -EINVAL;
4635 	}
4636 
4637 	dev_dbg(isp->dev, "%s exp_id %d\n", __func__, value);
4638 	ret = atomisp_css_exp_id_unlock(asd, value);
4639 	if (ret)
4640 		dev_err(isp->dev, "%s exp_id %d failed, err %d.\n",
4641 			__func__, value, ret);
4642 
4643 	return ret;
4644 }
4645 
4646 int atomisp_enable_dz_capt_pipe(struct atomisp_sub_device *asd,
4647 				unsigned int *enable)
4648 {
4649 	bool value;
4650 
4651 	if (!enable)
4652 		return -EINVAL;
4653 
4654 	value = *enable > 0;
4655 
4656 	atomisp_en_dz_capt_pipe(asd, value);
4657 
4658 	return 0;
4659 }
4660 
4661 int atomisp_inject_a_fake_event(struct atomisp_sub_device *asd, int *event)
4662 {
4663 	if (!event || !asd->streaming)
4664 		return -EINVAL;
4665 
4666 	lockdep_assert_held(&asd->isp->mutex);
4667 
4668 	dev_dbg(asd->isp->dev, "%s: trying to inject a fake event 0x%x\n",
4669 		__func__, *event);
4670 
4671 	switch (*event) {
4672 	case V4L2_EVENT_FRAME_SYNC:
4673 		atomisp_sof_event(asd);
4674 		break;
4675 	case V4L2_EVENT_FRAME_END:
4676 		atomisp_eof_event(asd, 0);
4677 		break;
4678 	case V4L2_EVENT_ATOMISP_3A_STATS_READY:
4679 		atomisp_3a_stats_ready_event(asd, 0);
4680 		break;
4681 	case V4L2_EVENT_ATOMISP_METADATA_READY:
4682 		atomisp_metadata_ready_event(asd, 0);
4683 		break;
4684 	default:
4685 		return -EINVAL;
4686 	}
4687 
4688 	return 0;
4689 }
4690