| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Support for Medifield PNW Camera Imaging ISP subsystem. |
| * |
| * Copyright (c) 2010 Intel Corporation. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License version |
| * 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * |
| */ |
| #include <linux/module.h> |
| #include <linux/uaccess.h> |
| #include <linux/delay.h> |
| #include <linux/device.h> |
| #include <linux/mm.h> |
| #include <linux/sched.h> |
| #include <linux/slab.h> |
| |
| #include <media/v4l2-event.h> |
| #include <media/v4l2-mediabus.h> |
| #include <media/videobuf2-vmalloc.h> |
| #include "atomisp_cmd.h" |
| #include "atomisp_common.h" |
| #include "atomisp_compat.h" |
| #include "atomisp_fops.h" |
| #include "atomisp_internal.h" |
| |
| const struct atomisp_in_fmt_conv atomisp_in_fmt_conv[] = { |
| { MEDIA_BUS_FMT_SBGGR8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, IA_CSS_BAYER_ORDER_BGGR }, |
| { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, IA_CSS_BAYER_ORDER_GBRG }, |
| { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, IA_CSS_BAYER_ORDER_GRBG }, |
| { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, IA_CSS_BAYER_ORDER_RGGB }, |
| { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, IA_CSS_BAYER_ORDER_BGGR }, |
| { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, IA_CSS_BAYER_ORDER_GBRG }, |
| { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, IA_CSS_BAYER_ORDER_GRBG }, |
| { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, IA_CSS_BAYER_ORDER_RGGB }, |
| { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, IA_CSS_BAYER_ORDER_BGGR }, |
| { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, IA_CSS_BAYER_ORDER_GBRG }, |
| { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, IA_CSS_BAYER_ORDER_GRBG }, |
| { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, IA_CSS_BAYER_ORDER_RGGB }, |
| { MEDIA_BUS_FMT_UYVY8_1X16, 8, 8, ATOMISP_INPUT_FORMAT_YUV422_8, 0 }, |
| { MEDIA_BUS_FMT_YUYV8_1X16, 8, 8, ATOMISP_INPUT_FORMAT_YUV422_8, 0 }, |
| #if 0 // disabled due to clang warnings |
| { MEDIA_BUS_FMT_JPEG_1X8, 8, 8, IA_CSS_FRAME_FORMAT_BINARY_8, 0 }, |
| { V4L2_MBUS_FMT_CUSTOM_NV12, 12, 12, IA_CSS_FRAME_FORMAT_NV12, 0 }, |
| { V4L2_MBUS_FMT_CUSTOM_NV21, 12, 12, IA_CSS_FRAME_FORMAT_NV21, 0 }, |
| #endif |
| { V4L2_MBUS_FMT_CUSTOM_YUV420, 12, 12, ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY, 0 }, |
| #if 0 |
| { V4L2_MBUS_FMT_CUSTOM_M10MO_RAW, 8, 8, IA_CSS_FRAME_FORMAT_BINARY_8, 0 }, |
| #endif |
| /* no valid V4L2 MBUS code for metadata format, so leave it 0. */ |
| { 0, 0, 0, ATOMISP_INPUT_FORMAT_EMBEDDED, 0 }, |
| {} |
| }; |
| |
| static const struct { |
| u32 code; |
| u32 compressed; |
| } compressed_codes[] = { |
| { MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8 }, |
| { MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8 }, |
| { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8 }, |
| { MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8 }, |
| }; |
| |
| u32 atomisp_subdev_uncompressed_code(u32 code) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(compressed_codes); i++) |
| if (code == compressed_codes[i].compressed) |
| return compressed_codes[i].code; |
| |
| return code; |
| } |
| |
| bool atomisp_subdev_is_compressed(u32 code) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(atomisp_in_fmt_conv) - 1; i++) |
| if (code == atomisp_in_fmt_conv[i].code) |
| return atomisp_in_fmt_conv[i].bpp != |
| atomisp_in_fmt_conv[i].depth; |
| |
| return false; |
| } |
| |
| const struct atomisp_in_fmt_conv *atomisp_find_in_fmt_conv(u32 code) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(atomisp_in_fmt_conv) - 1; i++) |
| if (code == atomisp_in_fmt_conv[i].code) |
| return atomisp_in_fmt_conv + i; |
| |
| return NULL; |
| } |
| |
| const struct atomisp_in_fmt_conv *atomisp_find_in_fmt_conv_by_atomisp_in_fmt( |
| enum atomisp_input_format atomisp_in_fmt) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(atomisp_in_fmt_conv) - 1; i++) |
| if (atomisp_in_fmt_conv[i].atomisp_in_fmt == atomisp_in_fmt) |
| return atomisp_in_fmt_conv + i; |
| |
| return NULL; |
| } |
| |
| bool atomisp_subdev_format_conversion(struct atomisp_sub_device *asd) |
| { |
| struct v4l2_mbus_framefmt *sink, *src; |
| |
| sink = atomisp_subdev_get_ffmt(&asd->subdev, NULL, |
| V4L2_SUBDEV_FORMAT_ACTIVE, ATOMISP_SUBDEV_PAD_SINK); |
| src = atomisp_subdev_get_ffmt(&asd->subdev, NULL, |
| V4L2_SUBDEV_FORMAT_ACTIVE, ATOMISP_SUBDEV_PAD_SOURCE); |
| |
| return atomisp_is_mbuscode_raw(sink->code) |
| && !atomisp_is_mbuscode_raw(src->code); |
| } |
| |
| /* |
| * V4L2 subdev operations |
| */ |
| |
| /* |
| * isp_subdev_ioctl - CCDC module private ioctl's |
| * @sd: ISP V4L2 subdevice |
| * @cmd: ioctl command |
| * @arg: ioctl argument |
| * |
| * Return 0 on success or a negative error code otherwise. |
| */ |
| static long isp_subdev_ioctl(struct v4l2_subdev *sd, |
| unsigned int cmd, void *arg) |
| { |
| return 0; |
| } |
| |
| /* |
| * isp_subdev_set_power - Power on/off the CCDC module |
| * @sd: ISP V4L2 subdevice |
| * @on: power on/off |
| * |
| * Return 0 on success or a negative error code otherwise. |
| */ |
| static int isp_subdev_set_power(struct v4l2_subdev *sd, int on) |
| { |
| return 0; |
| } |
| |
| static int isp_subdev_subscribe_event(struct v4l2_subdev *sd, |
| struct v4l2_fh *fh, |
| struct v4l2_event_subscription *sub) |
| { |
| struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); |
| struct atomisp_device *isp = isp_sd->isp; |
| |
| if (sub->type != V4L2_EVENT_FRAME_SYNC && |
| sub->type != V4L2_EVENT_FRAME_END && |
| sub->type != V4L2_EVENT_ATOMISP_3A_STATS_READY && |
| sub->type != V4L2_EVENT_ATOMISP_METADATA_READY && |
| sub->type != V4L2_EVENT_ATOMISP_PAUSE_BUFFER && |
| sub->type != V4L2_EVENT_ATOMISP_CSS_RESET && |
| sub->type != V4L2_EVENT_ATOMISP_ACC_COMPLETE) |
| return -EINVAL; |
| |
| if (sub->type == V4L2_EVENT_FRAME_SYNC && |
| !atomisp_css_valid_sof(isp)) |
| return -EINVAL; |
| |
| return v4l2_event_subscribe(fh, sub, 16, NULL); |
| } |
| |
| static int isp_subdev_unsubscribe_event(struct v4l2_subdev *sd, |
| struct v4l2_fh *fh, |
| struct v4l2_event_subscription *sub) |
| { |
| return v4l2_event_unsubscribe(fh, sub); |
| } |
| |
| /* |
| * isp_subdev_enum_mbus_code - Handle pixel format enumeration |
| * @sd: pointer to v4l2 subdev structure |
| * @fh : V4L2 subdev file handle |
| * @code: pointer to v4l2_subdev_pad_mbus_code_enum structure |
| * return -EINVAL or zero on success |
| */ |
| static int isp_subdev_enum_mbus_code(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_mbus_code_enum *code) |
| { |
| if (code->index >= ARRAY_SIZE(atomisp_in_fmt_conv) - 1) |
| return -EINVAL; |
| |
| code->code = atomisp_in_fmt_conv[code->index].code; |
| |
| return 0; |
| } |
| |
| static int isp_subdev_validate_rect(struct v4l2_subdev *sd, uint32_t pad, |
| uint32_t target) |
| { |
| switch (pad) { |
| case ATOMISP_SUBDEV_PAD_SINK: |
| switch (target) { |
| case V4L2_SEL_TGT_CROP: |
| return 0; |
| } |
| break; |
| default: |
| switch (target) { |
| case V4L2_SEL_TGT_COMPOSE: |
| return 0; |
| } |
| break; |
| } |
| |
| return -EINVAL; |
| } |
| |
| struct v4l2_rect *atomisp_subdev_get_rect(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| u32 which, uint32_t pad, |
| uint32_t target) |
| { |
| struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); |
| |
| if (which == V4L2_SUBDEV_FORMAT_TRY) { |
| switch (target) { |
| case V4L2_SEL_TGT_CROP: |
| return v4l2_subdev_state_get_crop(sd_state, pad); |
| case V4L2_SEL_TGT_COMPOSE: |
| return v4l2_subdev_state_get_compose(sd_state, pad); |
| } |
| } |
| |
| switch (target) { |
| case V4L2_SEL_TGT_CROP: |
| return &isp_sd->fmt[pad].crop; |
| case V4L2_SEL_TGT_COMPOSE: |
| return &isp_sd->fmt[pad].compose; |
| } |
| |
| return NULL; |
| } |
| |
| struct v4l2_mbus_framefmt |
| *atomisp_subdev_get_ffmt(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, uint32_t which, |
| uint32_t pad) |
| { |
| struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); |
| |
| if (which == V4L2_SUBDEV_FORMAT_TRY) |
| return v4l2_subdev_state_get_format(sd_state, pad); |
| |
| return &isp_sd->fmt[pad].fmt; |
| } |
| |
| static void isp_get_fmt_rect(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| uint32_t which, |
| struct v4l2_mbus_framefmt **ffmt, |
| struct v4l2_rect *crop[ATOMISP_SUBDEV_PADS_NUM], |
| struct v4l2_rect *comp[ATOMISP_SUBDEV_PADS_NUM]) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ATOMISP_SUBDEV_PADS_NUM; i++) { |
| ffmt[i] = atomisp_subdev_get_ffmt(sd, sd_state, which, i); |
| crop[i] = atomisp_subdev_get_rect(sd, sd_state, which, i, |
| V4L2_SEL_TGT_CROP); |
| comp[i] = atomisp_subdev_get_rect(sd, sd_state, which, i, |
| V4L2_SEL_TGT_COMPOSE); |
| } |
| } |
| |
| static void isp_subdev_propagate(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| u32 which, uint32_t pad, uint32_t target, |
| uint32_t flags) |
| { |
| struct v4l2_mbus_framefmt *ffmt[ATOMISP_SUBDEV_PADS_NUM]; |
| struct v4l2_rect *crop[ATOMISP_SUBDEV_PADS_NUM], |
| *comp[ATOMISP_SUBDEV_PADS_NUM]; |
| |
| if (flags & V4L2_SEL_FLAG_KEEP_CONFIG) |
| return; |
| |
| isp_get_fmt_rect(sd, sd_state, which, ffmt, crop, comp); |
| |
| switch (pad) { |
| case ATOMISP_SUBDEV_PAD_SINK: { |
| struct v4l2_rect r = {0}; |
| |
| /* Only crop target supported on sink pad. */ |
| r.width = ffmt[pad]->width; |
| r.height = ffmt[pad]->height; |
| |
| atomisp_subdev_set_selection(sd, sd_state, which, pad, |
| target, flags, &r); |
| break; |
| } |
| } |
| } |
| |
| static int isp_subdev_get_selection(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_selection *sel) |
| { |
| struct v4l2_rect *rec; |
| int rval = isp_subdev_validate_rect(sd, sel->pad, sel->target); |
| |
| if (rval) |
| return rval; |
| |
| rec = atomisp_subdev_get_rect(sd, sd_state, sel->which, sel->pad, |
| sel->target); |
| if (!rec) |
| return -EINVAL; |
| |
| sel->r = *rec; |
| return 0; |
| } |
| |
| static const char *atomisp_pad_str(unsigned int pad) |
| { |
| static const char *const pad_str[] = { |
| "ATOMISP_SUBDEV_PAD_SINK", |
| "ATOMISP_SUBDEV_PAD_SOURCE", |
| }; |
| |
| if (pad >= ARRAY_SIZE(pad_str)) |
| return "ATOMISP_INVALID_PAD"; |
| return pad_str[pad]; |
| } |
| |
| int atomisp_subdev_set_selection(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| u32 which, uint32_t pad, uint32_t target, |
| u32 flags, struct v4l2_rect *r) |
| { |
| struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); |
| struct atomisp_device *isp = isp_sd->isp; |
| struct v4l2_mbus_framefmt *ffmt[ATOMISP_SUBDEV_PADS_NUM]; |
| struct v4l2_rect *crop[ATOMISP_SUBDEV_PADS_NUM], |
| *comp[ATOMISP_SUBDEV_PADS_NUM]; |
| |
| if ((pad == ATOMISP_SUBDEV_PAD_SINK && target != V4L2_SEL_TGT_CROP) || |
| (pad == ATOMISP_SUBDEV_PAD_SOURCE && target != V4L2_SEL_TGT_COMPOSE)) |
| return -EINVAL; |
| |
| isp_get_fmt_rect(sd, sd_state, which, ffmt, crop, comp); |
| |
| dev_dbg(isp->dev, |
| "sel: pad %s tgt %s l %d t %d w %d h %d which %s f 0x%8.8x\n", |
| atomisp_pad_str(pad), target == V4L2_SEL_TGT_CROP |
| ? "V4L2_SEL_TGT_CROP" : "V4L2_SEL_TGT_COMPOSE", |
| r->left, r->top, r->width, r->height, |
| which == V4L2_SUBDEV_FORMAT_TRY ? "V4L2_SUBDEV_FORMAT_TRY" |
| : "V4L2_SUBDEV_FORMAT_ACTIVE", flags); |
| |
| r->width = rounddown(r->width, ATOM_ISP_STEP_WIDTH); |
| r->height = rounddown(r->height, ATOM_ISP_STEP_HEIGHT); |
| |
| if (pad == ATOMISP_SUBDEV_PAD_SINK) { |
| /* Only crop target supported on sink pad. */ |
| unsigned int dvs_w, dvs_h; |
| |
| crop[pad]->width = ffmt[pad]->width; |
| crop[pad]->height = ffmt[pad]->height; |
| |
| if (atomisp_subdev_format_conversion(isp_sd) |
| && crop[pad]->width && crop[pad]->height) { |
| crop[pad]->width -= isp_sd->sink_pad_padding_w; |
| crop[pad]->height -= isp_sd->sink_pad_padding_h; |
| } |
| |
| if (isp_sd->params.video_dis_en && |
| isp_sd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) { |
| /* This resolution contains 20 % of DVS slack |
| * (of the desired captured image before |
| * scaling, or 1 / 6 of what we get from the |
| * sensor) in both width and height. Remove |
| * it. */ |
| crop[pad]->width = roundup(crop[pad]->width * 5 / 6, |
| ATOM_ISP_STEP_WIDTH); |
| crop[pad]->height = roundup(crop[pad]->height * 5 / 6, |
| ATOM_ISP_STEP_HEIGHT); |
| } |
| |
| crop[pad]->width = min(crop[pad]->width, r->width); |
| crop[pad]->height = min(crop[pad]->height, r->height); |
| |
| if (!(flags & V4L2_SEL_FLAG_KEEP_CONFIG)) { |
| struct v4l2_rect tmp = *crop[pad]; |
| |
| atomisp_subdev_set_selection(sd, sd_state, which, |
| ATOMISP_SUBDEV_PAD_SOURCE, |
| V4L2_SEL_TGT_COMPOSE, flags, &tmp); |
| } |
| |
| if (which == V4L2_SUBDEV_FORMAT_TRY) |
| goto get_rect; |
| |
| if (isp_sd->params.video_dis_en && |
| isp_sd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) { |
| dvs_w = rounddown(crop[pad]->width / 5, |
| ATOM_ISP_STEP_WIDTH); |
| dvs_h = rounddown(crop[pad]->height / 5, |
| ATOM_ISP_STEP_HEIGHT); |
| } else if (!isp_sd->params.video_dis_en && |
| isp_sd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) { |
| /* |
| * For CSS2.0, digital zoom needs to set dvs envelope to 12 |
| * when dvs is disabled. |
| */ |
| dvs_w = dvs_h = 12; |
| } else { |
| dvs_w = dvs_h = 0; |
| } |
| atomisp_css_video_set_dis_envelope(isp_sd, dvs_w, dvs_h); |
| atomisp_css_input_set_effective_resolution(isp_sd, |
| ATOMISP_INPUT_STREAM_GENERAL, |
| crop[pad]->width, |
| crop[pad]->height); |
| } else if (isp_sd->run_mode->val != ATOMISP_RUN_MODE_PREVIEW) { |
| /* Only compose target is supported on source pads. */ |
| if (isp_sd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) { |
| /* Scaling is disabled in this mode */ |
| r->width = crop[ATOMISP_SUBDEV_PAD_SINK]->width; |
| r->height = crop[ATOMISP_SUBDEV_PAD_SINK]->height; |
| } |
| |
| if (crop[ATOMISP_SUBDEV_PAD_SINK]->width == r->width |
| && crop[ATOMISP_SUBDEV_PAD_SINK]->height == r->height) |
| isp_sd->params.yuv_ds_en = false; |
| else |
| isp_sd->params.yuv_ds_en = true; |
| |
| comp[pad]->width = r->width; |
| comp[pad]->height = r->height; |
| |
| if (r->width == 0 || r->height == 0 || |
| crop[ATOMISP_SUBDEV_PAD_SINK]->width == 0 || |
| crop[ATOMISP_SUBDEV_PAD_SINK]->height == 0) |
| goto get_rect; |
| /* |
| * do cropping on sensor input if ratio of required resolution |
| * is different with sensor output resolution ratio: |
| * |
| * ratio = width / height |
| * |
| * if ratio_output < ratio_sensor: |
| * effect_width = sensor_height * out_width / out_height; |
| * effect_height = sensor_height; |
| * else |
| * effect_width = sensor_width; |
| * effect_height = sensor_width * out_height / out_width; |
| * |
| */ |
| if (r->width * crop[ATOMISP_SUBDEV_PAD_SINK]->height < |
| crop[ATOMISP_SUBDEV_PAD_SINK]->width * r->height) |
| atomisp_css_input_set_effective_resolution(isp_sd, |
| ATOMISP_INPUT_STREAM_GENERAL, |
| rounddown(crop[ATOMISP_SUBDEV_PAD_SINK]-> |
| height * r->width / r->height, |
| ATOM_ISP_STEP_WIDTH), |
| crop[ATOMISP_SUBDEV_PAD_SINK]->height); |
| else |
| atomisp_css_input_set_effective_resolution(isp_sd, |
| ATOMISP_INPUT_STREAM_GENERAL, |
| crop[ATOMISP_SUBDEV_PAD_SINK]->width, |
| rounddown(crop[ATOMISP_SUBDEV_PAD_SINK]-> |
| width * r->height / r->width, |
| ATOM_ISP_STEP_WIDTH)); |
| } else { |
| comp[pad]->width = r->width; |
| comp[pad]->height = r->height; |
| } |
| |
| get_rect: |
| /* Set format dimensions on non-sink pads as well. */ |
| if (pad != ATOMISP_SUBDEV_PAD_SINK) { |
| ffmt[pad]->width = comp[pad]->width; |
| ffmt[pad]->height = comp[pad]->height; |
| } |
| |
| if (!atomisp_subdev_get_rect(sd, sd_state, which, pad, target)) |
| return -EINVAL; |
| *r = *atomisp_subdev_get_rect(sd, sd_state, which, pad, target); |
| |
| dev_dbg(isp->dev, "sel actual: l %d t %d w %d h %d\n", |
| r->left, r->top, r->width, r->height); |
| |
| return 0; |
| } |
| |
| static int isp_subdev_set_selection(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_selection *sel) |
| { |
| int rval = isp_subdev_validate_rect(sd, sel->pad, sel->target); |
| |
| if (rval) |
| return rval; |
| |
| return atomisp_subdev_set_selection(sd, sd_state, sel->which, |
| sel->pad, |
| sel->target, sel->flags, &sel->r); |
| } |
| |
| void atomisp_subdev_set_ffmt(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| uint32_t which, |
| u32 pad, struct v4l2_mbus_framefmt *ffmt) |
| { |
| struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); |
| struct atomisp_device *isp = isp_sd->isp; |
| struct v4l2_mbus_framefmt *__ffmt = |
| atomisp_subdev_get_ffmt(sd, sd_state, which, pad); |
| |
| dev_dbg(isp->dev, "ffmt: pad %s w %d h %d code 0x%8.8x which %s\n", |
| atomisp_pad_str(pad), ffmt->width, ffmt->height, ffmt->code, |
| which == V4L2_SUBDEV_FORMAT_TRY ? "V4L2_SUBDEV_FORMAT_TRY" |
| : "V4L2_SUBDEV_FORMAT_ACTIVE"); |
| |
| switch (pad) { |
| case ATOMISP_SUBDEV_PAD_SINK: { |
| const struct atomisp_in_fmt_conv *fc = |
| atomisp_find_in_fmt_conv(ffmt->code); |
| |
| if (!fc) { |
| fc = atomisp_in_fmt_conv; |
| ffmt->code = fc->code; |
| dev_dbg(isp->dev, "using 0x%8.8x instead\n", |
| ffmt->code); |
| } |
| |
| *__ffmt = *ffmt; |
| |
| isp_subdev_propagate(sd, sd_state, which, pad, |
| V4L2_SEL_TGT_CROP, 0); |
| |
| if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { |
| atomisp_css_input_set_resolution(isp_sd, |
| ATOMISP_INPUT_STREAM_GENERAL, ffmt); |
| atomisp_css_input_set_binning_factor(isp_sd, |
| ATOMISP_INPUT_STREAM_GENERAL, |
| 0); |
| atomisp_css_input_set_bayer_order(isp_sd, ATOMISP_INPUT_STREAM_GENERAL, |
| fc->bayer_order); |
| atomisp_css_input_set_format(isp_sd, ATOMISP_INPUT_STREAM_GENERAL, |
| fc->atomisp_in_fmt); |
| atomisp_css_set_default_isys_config(isp_sd, ATOMISP_INPUT_STREAM_GENERAL, |
| ffmt); |
| } |
| |
| break; |
| } |
| case ATOMISP_SUBDEV_PAD_SOURCE: |
| __ffmt->code = ffmt->code; |
| break; |
| } |
| } |
| |
| /* |
| * isp_subdev_get_format - Retrieve the video format on a pad |
| * @sd : ISP V4L2 subdevice |
| * @fh : V4L2 subdev file handle |
| * @pad: Pad number |
| * @fmt: Format |
| * |
| * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond |
| * to the format type. |
| */ |
| static int isp_subdev_get_format(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_format *fmt) |
| { |
| fmt->format = *atomisp_subdev_get_ffmt(sd, sd_state, fmt->which, |
| fmt->pad); |
| |
| return 0; |
| } |
| |
| /* |
| * isp_subdev_set_format - Set the video format on a pad |
| * @sd : ISP subdev V4L2 subdevice |
| * @fh : V4L2 subdev file handle |
| * @pad: Pad number |
| * @fmt: Format |
| * |
| * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond |
| * to the format type. |
| */ |
| static int isp_subdev_set_format(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_format *fmt) |
| { |
| atomisp_subdev_set_ffmt(sd, sd_state, fmt->which, fmt->pad, |
| &fmt->format); |
| |
| return 0; |
| } |
| |
| /* V4L2 subdev core operations */ |
| static const struct v4l2_subdev_core_ops isp_subdev_v4l2_core_ops = { |
| .ioctl = isp_subdev_ioctl, .s_power = isp_subdev_set_power, |
| .subscribe_event = isp_subdev_subscribe_event, |
| .unsubscribe_event = isp_subdev_unsubscribe_event, |
| }; |
| |
| /* V4L2 subdev pad operations */ |
| static const struct v4l2_subdev_pad_ops isp_subdev_v4l2_pad_ops = { |
| .enum_mbus_code = isp_subdev_enum_mbus_code, |
| .get_fmt = isp_subdev_get_format, |
| .set_fmt = isp_subdev_set_format, |
| .get_selection = isp_subdev_get_selection, |
| .set_selection = isp_subdev_set_selection, |
| .link_validate = v4l2_subdev_link_validate_default, |
| }; |
| |
| /* V4L2 subdev operations */ |
| static const struct v4l2_subdev_ops isp_subdev_v4l2_ops = { |
| .core = &isp_subdev_v4l2_core_ops, |
| .pad = &isp_subdev_v4l2_pad_ops, |
| }; |
| |
| static void isp_subdev_init_params(struct atomisp_sub_device *asd) |
| { |
| unsigned int i; |
| |
| /* parameters initialization */ |
| INIT_LIST_HEAD(&asd->s3a_stats); |
| INIT_LIST_HEAD(&asd->s3a_stats_in_css); |
| INIT_LIST_HEAD(&asd->s3a_stats_ready); |
| INIT_LIST_HEAD(&asd->dis_stats); |
| INIT_LIST_HEAD(&asd->dis_stats_in_css); |
| spin_lock_init(&asd->dis_stats_lock); |
| for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) { |
| INIT_LIST_HEAD(&asd->metadata[i]); |
| INIT_LIST_HEAD(&asd->metadata_in_css[i]); |
| INIT_LIST_HEAD(&asd->metadata_ready[i]); |
| } |
| } |
| |
| /* media operations */ |
| static const struct media_entity_operations isp_subdev_media_ops = { |
| .link_validate = v4l2_subdev_link_validate, |
| /* .set_power = v4l2_subdev_set_power, */ |
| }; |
| |
| static const char *const ctrl_run_mode_menu[] = { |
| [ATOMISP_RUN_MODE_VIDEO] = "Video", |
| [ATOMISP_RUN_MODE_STILL_CAPTURE] = "Still capture", |
| [ATOMISP_RUN_MODE_PREVIEW] = "Preview", |
| }; |
| |
| static const struct v4l2_ctrl_config ctrl_run_mode = { |
| .id = V4L2_CID_RUN_MODE, |
| .name = "Atomisp run mode", |
| .type = V4L2_CTRL_TYPE_MENU, |
| .min = ATOMISP_RUN_MODE_MIN, |
| .def = ATOMISP_RUN_MODE_PREVIEW, |
| .max = ATOMISP_RUN_MODE_MAX, |
| .qmenu = ctrl_run_mode_menu, |
| }; |
| |
| static const char *const ctrl_vfpp_mode_menu[] = { |
| "Enable", /* vfpp always enabled */ |
| "Disable to scaler mode", /* CSS into video mode and disable */ |
| "Disable to low latency mode", /* CSS into still mode and disable */ |
| }; |
| |
| static const struct v4l2_ctrl_config ctrl_vfpp = { |
| .id = V4L2_CID_VFPP, |
| .name = "Atomisp vf postprocess", |
| .type = V4L2_CTRL_TYPE_MENU, |
| .min = 0, |
| .def = 0, |
| .max = 2, |
| .qmenu = ctrl_vfpp_mode_menu, |
| }; |
| |
| /* |
| * Control for continuous mode raw buffer size |
| * |
| * The size of the RAW ringbuffer sets limit on how much |
| * back in time application can go when requesting capture |
| * frames to be rendered, and how many frames can be rendered |
| * in a burst at full sensor rate. |
| * |
| * Note: this setting has a big impact on memory consumption of |
| * the CSS subsystem. |
| */ |
| static const struct v4l2_ctrl_config ctrl_continuous_raw_buffer_size = { |
| .id = V4L2_CID_ATOMISP_CONTINUOUS_RAW_BUFFER_SIZE, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Continuous raw ringbuffer size", |
| .min = 1, |
| .max = 100, /* depends on CSS version, runtime checked */ |
| .step = 1, |
| .def = 3, |
| }; |
| |
| /* |
| * Control for enabling continuous viewfinder |
| * |
| * When enabled, and ISP is in continuous mode (see ctrl_continuous_mode ), |
| * preview pipeline continues concurrently with capture |
| * processing. When disabled, and continuous mode is used, |
| * preview is paused while captures are processed, but |
| * full pipeline restart is not needed. |
| * |
| * By setting this to disabled, capture processing is |
| * essentially given priority over preview, and the effective |
| * capture output rate may be higher than with continuous |
| * viewfinder enabled. |
| */ |
| static const struct v4l2_ctrl_config ctrl_continuous_viewfinder = { |
| .id = V4L2_CID_ATOMISP_CONTINUOUS_VIEWFINDER, |
| .type = V4L2_CTRL_TYPE_BOOLEAN, |
| .name = "Continuous viewfinder", |
| .min = 0, |
| .max = 1, |
| .step = 1, |
| .def = 0, |
| }; |
| |
| /* |
| * Control for enabling Lock&Unlock Raw Buffer mechanism |
| * |
| * When enabled, Raw Buffer can be locked and unlocked. |
| * Application can hold the exp_id of Raw Buffer |
| * and unlock it when no longer needed. |
| * Note: Make sure set this configuration before creating stream. |
| */ |
| static const struct v4l2_ctrl_config ctrl_enable_raw_buffer_lock = { |
| .id = V4L2_CID_ENABLE_RAW_BUFFER_LOCK, |
| .type = V4L2_CTRL_TYPE_BOOLEAN, |
| .name = "Lock Unlock Raw Buffer", |
| .min = 0, |
| .max = 1, |
| .step = 1, |
| .def = 0, |
| }; |
| |
| /* |
| * Control to disable digital zoom of the whole stream |
| * |
| * When it is true, pipe configuration enable_dz will be set to false. |
| * This can help get a better performance by disabling pp binary. |
| * |
| * Note: Make sure set this configuration before creating stream. |
| */ |
| static const struct v4l2_ctrl_config ctrl_disable_dz = { |
| .id = V4L2_CID_DISABLE_DZ, |
| .type = V4L2_CTRL_TYPE_BOOLEAN, |
| .name = "Disable digital zoom", |
| .min = 0, |
| .max = 1, |
| .step = 1, |
| .def = 0, |
| }; |
| |
| static int atomisp_init_subdev_pipe(struct atomisp_sub_device *asd, |
| struct atomisp_video_pipe *pipe, enum v4l2_buf_type buf_type) |
| { |
| int ret; |
| |
| pipe->type = buf_type; |
| pipe->asd = asd; |
| pipe->isp = asd->isp; |
| spin_lock_init(&pipe->irq_lock); |
| mutex_init(&pipe->vb_queue_mutex); |
| |
| /* Init videobuf2 queue structure */ |
| pipe->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| pipe->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR; |
| pipe->vb_queue.buf_struct_size = sizeof(struct ia_css_frame); |
| pipe->vb_queue.ops = &atomisp_vb2_ops; |
| pipe->vb_queue.mem_ops = &vb2_vmalloc_memops; |
| pipe->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
| ret = vb2_queue_init(&pipe->vb_queue); |
| if (ret) |
| return ret; |
| |
| pipe->vdev.queue = &pipe->vb_queue; |
| pipe->vdev.queue->lock = &pipe->vb_queue_mutex; |
| |
| INIT_LIST_HEAD(&pipe->buffers_in_css); |
| INIT_LIST_HEAD(&pipe->activeq); |
| INIT_LIST_HEAD(&pipe->buffers_waiting_for_param); |
| INIT_LIST_HEAD(&pipe->per_frame_params); |
| |
| return 0; |
| } |
| |
| /* |
| * isp_subdev_init_entities - Initialize V4L2 subdev and media entity |
| * @asd: ISP CCDC module |
| * |
| * Return 0 on success and a negative error code on failure. |
| */ |
| static int isp_subdev_init_entities(struct atomisp_sub_device *asd) |
| { |
| struct v4l2_subdev *sd = &asd->subdev; |
| struct media_pad *pads = asd->pads; |
| struct media_entity *me = &sd->entity; |
| int ret; |
| |
| v4l2_subdev_init(sd, &isp_subdev_v4l2_ops); |
| sprintf(sd->name, "ATOMISP_SUBDEV"); |
| v4l2_set_subdevdata(sd, asd); |
| sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE; |
| sd->devnode = &asd->video_out.vdev; |
| |
| pads[ATOMISP_SUBDEV_PAD_SINK].flags = MEDIA_PAD_FL_SINK; |
| pads[ATOMISP_SUBDEV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; |
| |
| asd->fmt[ATOMISP_SUBDEV_PAD_SINK].fmt.code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| asd->fmt[ATOMISP_SUBDEV_PAD_SOURCE].fmt.code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| |
| me->ops = &isp_subdev_media_ops; |
| me->function = MEDIA_ENT_F_PROC_VIDEO_ISP; |
| ret = media_entity_pads_init(me, ATOMISP_SUBDEV_PADS_NUM, pads); |
| if (ret < 0) |
| return ret; |
| |
| ret = atomisp_init_subdev_pipe(asd, &asd->video_out, V4L2_BUF_TYPE_VIDEO_CAPTURE); |
| if (ret) |
| return ret; |
| |
| ret = atomisp_video_init(&asd->video_out); |
| if (ret < 0) |
| return ret; |
| |
| ret = v4l2_ctrl_handler_init(&asd->ctrl_handler, 1); |
| if (ret) |
| return ret; |
| |
| asd->run_mode = v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_run_mode, NULL); |
| asd->vfpp = v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_vfpp, NULL); |
| asd->continuous_viewfinder = v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_continuous_viewfinder, |
| NULL); |
| asd->continuous_raw_buffer_size = |
| v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_continuous_raw_buffer_size, |
| NULL); |
| |
| asd->enable_raw_buffer_lock = |
| v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_enable_raw_buffer_lock, |
| NULL); |
| asd->disable_dz = |
| v4l2_ctrl_new_custom(&asd->ctrl_handler, |
| &ctrl_disable_dz, |
| NULL); |
| |
| /* Make controls visible on subdev as well. */ |
| asd->subdev.ctrl_handler = &asd->ctrl_handler; |
| spin_lock_init(&asd->raw_buffer_bitmap_lock); |
| return asd->ctrl_handler.error; |
| } |
| |
| static void atomisp_subdev_cleanup_entities(struct atomisp_sub_device *asd) |
| { |
| v4l2_ctrl_handler_free(&asd->ctrl_handler); |
| |
| media_entity_cleanup(&asd->subdev.entity); |
| } |
| |
| void atomisp_subdev_cleanup_pending_events(struct atomisp_sub_device *asd) |
| { |
| struct v4l2_fh *fh, *fh_tmp; |
| struct v4l2_event event; |
| unsigned int i, pending_event; |
| |
| list_for_each_entry_safe(fh, fh_tmp, |
| &asd->subdev.devnode->fh_list, list) { |
| pending_event = v4l2_event_pending(fh); |
| for (i = 0; i < pending_event; i++) |
| v4l2_event_dequeue(fh, &event, 1); |
| } |
| } |
| |
| void atomisp_subdev_unregister_entities(struct atomisp_sub_device *asd) |
| { |
| atomisp_subdev_cleanup_entities(asd); |
| v4l2_device_unregister_subdev(&asd->subdev); |
| atomisp_video_unregister(&asd->video_out); |
| } |
| |
| int atomisp_subdev_register_subdev(struct atomisp_sub_device *asd, |
| struct v4l2_device *vdev) |
| { |
| return v4l2_device_register_subdev(vdev, &asd->subdev); |
| } |
| |
| /* |
| * atomisp_subdev_init - ISP Subdevice initialization. |
| * @dev: Device pointer specific to the ATOM ISP. |
| * |
| * TODO: Get the initialisation values from platform data. |
| * |
| * Return 0 on success or a negative error code otherwise. |
| */ |
| int atomisp_subdev_init(struct atomisp_device *isp) |
| { |
| int ret; |
| |
| isp->asd.isp = isp; |
| isp_subdev_init_params(&isp->asd); |
| ret = isp_subdev_init_entities(&isp->asd); |
| if (ret < 0) |
| atomisp_subdev_cleanup_entities(&isp->asd); |
| |
| return ret; |
| } |