diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/atomisp_subdev.c')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/atomisp_subdev.c | 1437 |
1 files changed, 1437 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_subdev.c new file mode 100644 index 0000000..3d6bb16 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_subdev.c @@ -0,0 +1,1437 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + */ +#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 <asm/intel-mid.h> + +#include <media/v4l2-event.h> +#include <media/v4l2-mediabus.h> +#include "atomisp_cmd.h" +#include "atomisp_common.h" +#include "atomisp_compat.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, CSS_BAYER_ORDER_BGGR, CSS_FORMAT_RAW_8 }, + { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, CSS_BAYER_ORDER_GBRG, CSS_FORMAT_RAW_8 }, + { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, CSS_BAYER_ORDER_GRBG, CSS_FORMAT_RAW_8 }, + { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, ATOMISP_INPUT_FORMAT_RAW_8, CSS_BAYER_ORDER_RGGB, CSS_FORMAT_RAW_8 }, + { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, CSS_BAYER_ORDER_BGGR, CSS_FORMAT_RAW_10 }, + { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, CSS_BAYER_ORDER_GBRG, CSS_FORMAT_RAW_10 }, + { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, CSS_BAYER_ORDER_GRBG, CSS_FORMAT_RAW_10 }, + { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, ATOMISP_INPUT_FORMAT_RAW_10, CSS_BAYER_ORDER_RGGB, CSS_FORMAT_RAW_10 }, + { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, CSS_BAYER_ORDER_BGGR, CSS_FORMAT_RAW_12 }, + { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, CSS_BAYER_ORDER_GBRG, CSS_FORMAT_RAW_12 }, + { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, CSS_BAYER_ORDER_GRBG, CSS_FORMAT_RAW_12 }, + { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, ATOMISP_INPUT_FORMAT_RAW_12, CSS_BAYER_ORDER_RGGB, CSS_FORMAT_RAW_12 }, + { MEDIA_BUS_FMT_UYVY8_1X16, 8, 8, ATOMISP_INPUT_FORMAT_YUV422_8, 0, IA_CSS_STREAM_FORMAT_YUV422_8 }, + { MEDIA_BUS_FMT_YUYV8_1X16, 8, 8, ATOMISP_INPUT_FORMAT_YUV422_8, 0, IA_CSS_STREAM_FORMAT_YUV422_8 }, + { MEDIA_BUS_FMT_JPEG_1X8, 8, 8, CSS_FRAME_FORMAT_BINARY_8, 0, IA_CSS_STREAM_FORMAT_BINARY_8 }, + { V4L2_MBUS_FMT_CUSTOM_NV12, 12, 12, CSS_FRAME_FORMAT_NV12, 0, CSS_FRAME_FORMAT_NV12 }, + { V4L2_MBUS_FMT_CUSTOM_NV21, 12, 12, CSS_FRAME_FORMAT_NV21, 0, CSS_FRAME_FORMAT_NV21 }, + { V4L2_MBUS_FMT_CUSTOM_YUV420, 12, 12, ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY, 0, IA_CSS_STREAM_FORMAT_YUV420_8_LEGACY }, + { V4L2_MBUS_FMT_CUSTOM_M10MO_RAW, 8, 8, CSS_FRAME_FORMAT_BINARY_8, 0, IA_CSS_STREAM_FORMAT_BINARY_8 }, + /* no valid V4L2 MBUS code for metadata format, so leave it 0. */ + { 0, 0, 0, ATOMISP_INPUT_FORMAT_EMBEDDED, 0, IA_CSS_STREAM_FORMAT_EMBEDDED }, + {} +}; + +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_css_stream_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, + unsigned int source_pad) +{ + 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, source_pad); + + return atomisp_is_mbuscode_raw(sink->code) + && !atomisp_is_mbuscode_raw(src->code); +} + +uint16_t atomisp_subdev_source_pad(struct video_device * vdev) +{ + struct media_link *link; + uint16_t ret = 0; + list_for_each_entry(link, &vdev->entity.links, list) { + if (link->source) { + ret = link->source->index; + break; + } + } + return ret; +} + +/* + * 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_RAW_BUFFERS_ALLOC_DONE && + 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_pad_config *cfg, + 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_pad_config *cfg, + uint32_t 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_get_try_crop(sd, cfg, pad); + case V4L2_SEL_TGT_COMPOSE: + return v4l2_subdev_get_try_compose(sd, cfg, 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_pad_config *cfg, 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_get_try_format(sd, cfg, pad); + + return &isp_sd->fmt[pad].fmt; +} + +static void isp_get_fmt_rect(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, 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, cfg, which, i); + crop[i] = atomisp_subdev_get_rect(sd, cfg, which, i, + V4L2_SEL_TGT_CROP); + comp[i] = atomisp_subdev_get_rect(sd, cfg, which, i, + V4L2_SEL_TGT_COMPOSE); + } +} + +static void isp_subdev_propagate(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + uint32_t 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, cfg, 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, cfg, which, pad, + target, flags, &r); + break; + } + } +} + +static int isp_subdev_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + 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, cfg, sel->which, sel->pad, + sel->target); + if (!rec) + return -EINVAL; + + sel->r = *rec; + return 0; +} + +static char *atomisp_pad_str[] = { "ATOMISP_SUBDEV_PAD_SINK", + "ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE", + "ATOMISP_SUBDEV_PAD_SOURCE_VF", + "ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW", + "ATOMISP_SUBDEV_PAD_SOURCE_VIDEO"}; + +int atomisp_subdev_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + uint32_t which, uint32_t pad, uint32_t target, + uint32_t 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]; + uint16_t vdev_pad = atomisp_subdev_source_pad(sd->devnode); + struct v4l2_rect *crop[ATOMISP_SUBDEV_PADS_NUM], + *comp[ATOMISP_SUBDEV_PADS_NUM]; + enum atomisp_input_stream_id stream_id; + unsigned int i; + unsigned int padding_w = pad_w; + unsigned int padding_h = pad_h; + + stream_id = atomisp_source_pad_to_stream_id(isp_sd, vdev_pad); + + isp_get_fmt_rect(sd, cfg, 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); + + switch (pad) { + case 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; + + /* Workaround for BYT 1080p perfectshot since the maxinum resolution of + * front camera ov2722 is 1932x1092 and cannot use pad_w > 12*/ + if (!strncmp(isp->inputs[isp_sd->input_curr].camera->name, + "ov2722", 6) && crop[pad]->height == 1092) { + padding_w = 12; + padding_h = 12; + } + + if (isp->inputs[isp_sd->input_curr].type == SOC_CAMERA) { + padding_w = 0; + padding_h = 0; + } + + if (atomisp_subdev_format_conversion(isp_sd, + isp_sd->capture_pad) + && crop[pad]->width && crop[pad]->height) + crop[pad]->width -= padding_w, crop[pad]->height -= padding_h; + + /* if subdev type is SOC camera,we do not need to set DVS */ + if (isp->inputs[isp_sd->input_curr].type == SOC_CAMERA) + isp_sd->params.video_dis_en = 0; + + if (isp_sd->params.video_dis_en && + isp_sd->run_mode->val == ATOMISP_RUN_MODE_VIDEO && + !isp_sd->continuous_mode->val) { + /* 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)) { + for (i = ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE; + i < ATOMISP_SUBDEV_PADS_NUM; i++) { + struct v4l2_rect tmp = *crop[pad]; + + atomisp_subdev_set_selection( + sd, cfg, which, i, V4L2_SEL_TGT_COMPOSE, + flags, &tmp); + } + } + + if (which == V4L2_SUBDEV_FORMAT_TRY) + break; + + if (isp_sd->params.video_dis_en && + isp_sd->run_mode->val == ATOMISP_RUN_MODE_VIDEO && + !isp_sd->continuous_mode->val) { + 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, stream_id, + crop[pad]->width, crop[pad]->height); + + break; + } + case ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE: + case ATOMISP_SUBDEV_PAD_SOURCE_VIDEO: { + /* 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) + break; + /* + * 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, + stream_id, + 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, + stream_id, + crop[ATOMISP_SUBDEV_PAD_SINK]->width, + rounddown(crop[ATOMISP_SUBDEV_PAD_SINK]-> + width * r->height / r->width, + ATOM_ISP_STEP_WIDTH)); + + break; + } + case ATOMISP_SUBDEV_PAD_SOURCE_VF: + case ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW: + comp[pad]->width = r->width; + comp[pad]->height = r->height; + break; + default: + return -EINVAL; + } + + /* 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, cfg, which, pad, target)) + return -EINVAL; + *r = *atomisp_subdev_get_rect(sd, cfg, 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_pad_config *cfg, + 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, cfg, sel->which, sel->pad, + sel->target, sel->flags, &sel->r); +} + +static int atomisp_get_sensor_bin_factor(struct atomisp_sub_device *asd) +{ + struct v4l2_control ctrl = {0}; + struct atomisp_device *isp = asd->isp; + int hbin, vbin; + int ret; + + if (isp->inputs[asd->input_curr].type == FILE_INPUT || + isp->inputs[asd->input_curr].type == TEST_PATTERN) + return 0; + + ctrl.id = V4L2_CID_BIN_FACTOR_HORZ; + ret = + v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->ctrl_handler, + &ctrl); + hbin = ctrl.value; + ctrl.id = V4L2_CID_BIN_FACTOR_VERT; + ret |= + v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->ctrl_handler, + &ctrl); + vbin = ctrl.value; + + /* + * ISP needs to know binning factor from sensor. + * In case horizontal and vertical sensor's binning factors + * are different or sensor does not support binning factor CID, + * ISP will apply default 0 value. + */ + if (ret || hbin != vbin) + hbin = 0; + + return hbin; +} + +void atomisp_subdev_set_ffmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, uint32_t which, + uint32_t 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, cfg, which, pad); + uint16_t vdev_pad = atomisp_subdev_source_pad(sd->devnode); + enum atomisp_input_stream_id stream_id; + + 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"); + + stream_id = atomisp_source_pad_to_stream_id(isp_sd, vdev_pad); + + 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, cfg, which, pad, + V4L2_SEL_TGT_CROP, 0); + + if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { + atomisp_css_input_set_resolution(isp_sd, + stream_id, ffmt); + atomisp_css_input_set_binning_factor(isp_sd, + stream_id, + atomisp_get_sensor_bin_factor(isp_sd)); + atomisp_css_input_set_bayer_order(isp_sd, stream_id, + fc->bayer_order); + atomisp_css_input_set_format(isp_sd, stream_id, + fc->css_stream_fmt); + atomisp_css_set_default_isys_config(isp_sd, stream_id, + ffmt); + } + + break; + } + case ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE: + case ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW: + case ATOMISP_SUBDEV_PAD_SOURCE_VF: + case ATOMISP_SUBDEV_PAD_SOURCE_VIDEO: + __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_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + fmt->format = *atomisp_subdev_get_ffmt(sd, cfg, 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_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + atomisp_subdev_set_ffmt(sd, cfg, 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]); + } +} + +/* +* isp_subdev_link_setup - Setup isp subdev connections +* @entity: ispsubdev media entity +* @local: Pad at the local end of the link +* @remote: Pad at the remote end of the link +* @flags: Link flags +* +* return -EINVAL or zero on success +*/ +static int isp_subdev_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct atomisp_sub_device *isp_sd = v4l2_get_subdevdata(sd); + struct atomisp_device *isp = isp_sd->isp; + unsigned int i; + + switch (local->index | is_media_entity_v4l2_subdev(remote->entity)) { + case ATOMISP_SUBDEV_PAD_SINK | MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN: + /* Read from the sensor CSI2-ports. */ + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + isp_sd->input = ATOMISP_SUBDEV_INPUT_NONE; + break; + } + + if (isp_sd->input != ATOMISP_SUBDEV_INPUT_NONE) + return -EBUSY; + + for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++) { + if (remote->entity != &isp->csi2_port[i].subdev.entity) + continue; + + isp_sd->input = ATOMISP_SUBDEV_INPUT_CSI2_PORT1 + i; + return 0; + } + + return -EINVAL; + + case ATOMISP_SUBDEV_PAD_SINK | MEDIA_ENT_F_OLD_BASE: + /* read from memory */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (isp_sd->input >= ATOMISP_SUBDEV_INPUT_CSI2_PORT1 && + isp_sd->input < (ATOMISP_SUBDEV_INPUT_CSI2_PORT1 + + ATOMISP_CAMERA_NR_PORTS)) + return -EBUSY; + isp_sd->input = ATOMISP_SUBDEV_INPUT_MEMORY; + } else { + if (isp_sd->input == ATOMISP_SUBDEV_INPUT_MEMORY) + isp_sd->input = ATOMISP_SUBDEV_INPUT_NONE; + } + break; + + case ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW | MEDIA_ENT_F_OLD_BASE: + /* always write to memory */ + break; + + case ATOMISP_SUBDEV_PAD_SOURCE_VF | MEDIA_ENT_F_OLD_BASE: + /* always write to memory */ + break; + + case ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE | MEDIA_ENT_F_OLD_BASE: + /* always write to memory */ + break; + + case ATOMISP_SUBDEV_PAD_SOURCE_VIDEO | MEDIA_ENT_F_OLD_BASE: + /* always write to memory */ + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* media operations */ +static const struct media_entity_operations isp_subdev_media_ops = { + .link_setup = isp_subdev_link_setup, + .link_validate = v4l2_subdev_link_validate, +/* .set_power = v4l2_subdev_set_power, */ +}; + +static int __atomisp_update_run_mode(struct atomisp_sub_device *asd) +{ + struct atomisp_device *isp = asd->isp; + struct v4l2_ctrl *ctrl = asd->run_mode; + struct v4l2_ctrl *c; + struct v4l2_streamparm p = {0}; + int modes[] = { CI_MODE_NONE, + CI_MODE_VIDEO, + CI_MODE_STILL_CAPTURE, + CI_MODE_CONTINUOUS, + CI_MODE_PREVIEW }; + s32 mode; + + if (ctrl->val != ATOMISP_RUN_MODE_VIDEO && + asd->continuous_mode->val) + mode = ATOMISP_RUN_MODE_PREVIEW; + else + mode = ctrl->val; + + c = v4l2_ctrl_find( + isp->inputs[asd->input_curr].camera->ctrl_handler, + V4L2_CID_RUN_MODE); + + if (c) + return v4l2_ctrl_s_ctrl(c, mode); + + /* Fall back to obsolete s_parm */ + p.parm.capture.capturemode = modes[mode]; + + return v4l2_subdev_call( + isp->inputs[asd->input_curr].camera, video, s_parm, &p); +} + +int atomisp_update_run_mode(struct atomisp_sub_device *asd) +{ + int rval; + + mutex_lock(asd->ctrl_handler.lock); + rval = __atomisp_update_run_mode(asd); + mutex_unlock(asd->ctrl_handler.lock); + + return rval; +} + +static int s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct atomisp_sub_device *asd = container_of( + ctrl->handler, struct atomisp_sub_device, ctrl_handler); + + switch (ctrl->id) { + case V4L2_CID_RUN_MODE: + return __atomisp_update_run_mode(asd); + case V4L2_CID_DEPTH_MODE: + if (asd->streaming != ATOMISP_DEVICE_STREAMING_DISABLED) { + dev_err(asd->isp->dev, "ISP is streaming, it is not supported to change the depth mode\n"); + return -EINVAL; + } + break; + } + + return 0; +} + +static const struct v4l2_ctrl_ops ctrl_ops = { + .s_ctrl = &s_ctrl, +}; + +static const struct v4l2_ctrl_config ctrl_fmt_auto = { + .ops = &ctrl_ops, + .id = V4L2_CID_FMT_AUTO, + .name = "Automatic format guessing", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, + .def = 1, +}; + +static const char * const ctrl_run_mode_menu[] = { + NULL, + "Video", + "Still capture", + "Continuous capture", + "Preview", +}; + +static const struct v4l2_ctrl_config ctrl_run_mode = { + .ops = &ctrl_ops, + .id = V4L2_CID_RUN_MODE, + .name = "Atomisp run mode", + .type = V4L2_CTRL_TYPE_MENU, + .min = 1, + .def = 1, + .max = 4, + .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 ISP continuous mode + * + * When enabled, capture processing is possible without + * stopping the preview pipeline. When disabled, ISP needs + * to be restarted between preview and capture. + */ +static const struct v4l2_ctrl_config ctrl_continuous_mode = { + .ops = &ctrl_ops, + .id = V4L2_CID_ATOMISP_CONTINUOUS_MODE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Continuous mode", + .min = 0, + .max = 1, + .step = 1, + .def = 0, +}; + +/* + * 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 = { + .ops = &ctrl_ops, + .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 configuation 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, +}; + +/* + * Control for ISP depth mode + * + * When enabled, that means ISP will deal with dual streams and sensors will be + * in slave/master mode. + * slave sensor will have no output until master sensor is streamed on. + */ +static const struct v4l2_ctrl_config ctrl_depth_mode = { + .ops = &ctrl_ops, + .id = V4L2_CID_DEPTH_MODE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Depth mode", + .min = 0, + .max = 1, + .step = 1, + .def = 0, +}; + +#ifdef ISP2401 +/* + * Control for selectting ISP version + * + * When enabled, that means ISP version will be used ISP2.7. when disable, the + * isp will default to use ISP2.2. + * Note: Make sure set this configuration before creating stream. + */ +static const struct v4l2_ctrl_config ctrl_select_isp_version = { + .ops = &ctrl_ops, + .id = V4L2_CID_ATOMISP_SELECT_ISP_VERSION, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Select Isp version", + .min = 0, + .max = 1, + .step = 1, + .def = 0, +}; + +#ifdef CONFIG_ION +/* + * Control for ISP ion device fd + * + * userspace will open ion device and pass the fd to kernel. + * this fd will be used to map shared fd to buffer. + */ +static const struct v4l2_ctrl_config ctrl_ion_dev_fd = { + .ops = &ctrl_ops, + .id = V4L2_CID_ATOMISP_ION_DEVICE_FD, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Ion Device Fd", + .min = -1, + .max = 1024, + .step = 1, + .def = ION_FD_UNSET +}; +#endif + +#endif +static void atomisp_init_subdev_pipe(struct atomisp_sub_device *asd, + struct atomisp_video_pipe *pipe, enum v4l2_buf_type buf_type) +{ + pipe->type = buf_type; + pipe->asd = asd; + pipe->isp = asd->isp; + spin_lock_init(&pipe->irq_lock); + INIT_LIST_HEAD(&pipe->activeq); + INIT_LIST_HEAD(&pipe->activeq_out); + INIT_LIST_HEAD(&pipe->buffers_waiting_for_param); + INIT_LIST_HEAD(&pipe->per_frame_params); + memset(pipe->frame_request_config_id, + 0, VIDEO_MAX_FRAME * sizeof(unsigned int)); + memset(pipe->frame_params, + 0, VIDEO_MAX_FRAME * + sizeof(struct atomisp_css_params_with_list *)); +} + +static void atomisp_init_acc_pipe(struct atomisp_sub_device *asd, + struct atomisp_acc_pipe *pipe) +{ + pipe->asd = asd; + pipe->isp = asd->isp; + INIT_LIST_HEAD(&asd->acc.fw); + INIT_LIST_HEAD(&asd->acc.memory_maps); + ida_init(&asd->acc.ida); +} + +/* + * 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; + + asd->input = ATOMISP_SUBDEV_INPUT_NONE; + + v4l2_subdev_init(sd, &isp_subdev_v4l2_ops); + sprintf(sd->name, "ATOMISP_SUBDEV_%d", asd->index); + v4l2_set_subdevdata(sd, asd); + sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE; + + pads[ATOMISP_SUBDEV_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW].flags = MEDIA_PAD_FL_SOURCE; + pads[ATOMISP_SUBDEV_PAD_SOURCE_VF].flags = MEDIA_PAD_FL_SOURCE; + pads[ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE].flags = MEDIA_PAD_FL_SOURCE; + pads[ATOMISP_SUBDEV_PAD_SOURCE_VIDEO].flags = MEDIA_PAD_FL_SOURCE; + + asd->fmt[ATOMISP_SUBDEV_PAD_SINK].fmt.code = + MEDIA_BUS_FMT_SBGGR10_1X10; + asd->fmt[ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW].fmt.code = + MEDIA_BUS_FMT_SBGGR10_1X10; + asd->fmt[ATOMISP_SUBDEV_PAD_SOURCE_VF].fmt.code = + MEDIA_BUS_FMT_SBGGR10_1X10; + asd->fmt[ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE].fmt.code = + MEDIA_BUS_FMT_SBGGR10_1X10; + asd->fmt[ATOMISP_SUBDEV_PAD_SOURCE_VIDEO].fmt.code = + MEDIA_BUS_FMT_SBGGR10_1X10; + + me->ops = &isp_subdev_media_ops; + me->function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN; + ret = media_entity_pads_init(me, ATOMISP_SUBDEV_PADS_NUM, pads); + if (ret < 0) + return ret; + + atomisp_init_subdev_pipe(asd, &asd->video_in, + V4L2_BUF_TYPE_VIDEO_OUTPUT); + + atomisp_init_subdev_pipe(asd, &asd->video_out_preview, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + atomisp_init_subdev_pipe(asd, &asd->video_out_vf, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + atomisp_init_subdev_pipe(asd, &asd->video_out_capture, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + atomisp_init_subdev_pipe(asd, &asd->video_out_video_capture, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + atomisp_init_acc_pipe(asd, &asd->video_acc); + + ret = atomisp_video_init(&asd->video_in, "MEMORY"); + if (ret < 0) + return ret; + + ret = atomisp_video_init(&asd->video_out_capture, "CAPTURE"); + if (ret < 0) + return ret; + + ret = atomisp_video_init(&asd->video_out_vf, "VIEWFINDER"); + if (ret < 0) + return ret; + + ret = atomisp_video_init(&asd->video_out_preview, "PREVIEW"); + if (ret < 0) + return ret; + + ret = atomisp_video_init(&asd->video_out_video_capture, "VIDEO"); + if (ret < 0) + return ret; + + atomisp_acc_init(&asd->video_acc, "ACC"); + + ret = v4l2_ctrl_handler_init(&asd->ctrl_handler, 1); + if (ret) + return ret; + + asd->fmt_auto = v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_fmt_auto, NULL); + 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_mode = v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_continuous_mode, 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->depth_mode = + v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_depth_mode, + NULL); + asd->disable_dz = + v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_disable_dz, + NULL); +#ifdef ISP2401 + asd->select_isp_version = + v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_select_isp_version, + NULL); + +#ifdef CONFIG_ION + asd->ion_dev_fd = + v4l2_ctrl_new_custom(&asd->ctrl_handler, + &ctrl_ion_dev_fd, + NULL); +#endif +#endif + + /* 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; +} + +int atomisp_create_pads_links(struct atomisp_device *isp) +{ + struct atomisp_sub_device *asd; + int i, j, ret = 0; + isp->num_of_streams = isp->media_dev.driver_version >= + ATOMISP_CSS_VERSION_20 ? 2 : 1; + for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++) { + for (j = 0; j < isp->num_of_streams; j++) { + ret = + media_create_pad_link(&isp->csi2_port[i].subdev. + entity, CSI2_PAD_SOURCE, + &isp->asd[j].subdev.entity, + ATOMISP_SUBDEV_PAD_SINK, 0); + if (ret < 0) + return ret; + } + } + for (i = 0; i < isp->input_cnt - 2; i++) { + ret = media_create_pad_link(&isp->inputs[i].camera->entity, 0, + &isp->csi2_port[isp->inputs[i]. + port].subdev.entity, + CSI2_PAD_SINK, + MEDIA_LNK_FL_ENABLED | + MEDIA_LNK_FL_IMMUTABLE); + if (ret < 0) + return ret; + } + for (i = 0; i < isp->num_of_streams; i++) { + asd = &isp->asd[i]; + ret = media_create_pad_link(&asd->subdev.entity, + ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW, + &asd->video_out_preview.vdev.entity, + 0, 0); + if (ret < 0) + return ret; + ret = media_create_pad_link(&asd->subdev.entity, + ATOMISP_SUBDEV_PAD_SOURCE_VF, + &asd->video_out_vf.vdev.entity, 0, + 0); + if (ret < 0) + return ret; + ret = media_create_pad_link(&asd->subdev.entity, + ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE, + &asd->video_out_capture.vdev.entity, + 0, 0); + if (ret < 0) + return ret; + ret = media_create_pad_link(&asd->subdev.entity, + ATOMISP_SUBDEV_PAD_SOURCE_VIDEO, + &asd->video_out_video_capture.vdev. + entity, 0, 0); + if (ret < 0) + return ret; + /* + * file input only supported on subdev0 + * so do not create pad link for subdevs other then subdev0 + */ + if (asd->index) + return 0; + ret = media_create_pad_link(&asd->video_in.vdev.entity, + 0, &asd->subdev.entity, + ATOMISP_SUBDEV_PAD_SINK, 0); + if (ret < 0) + return ret; + } + return 0; +} + +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_in); + atomisp_video_unregister(&asd->video_out_preview); + atomisp_video_unregister(&asd->video_out_vf); + atomisp_video_unregister(&asd->video_out_capture); + atomisp_video_unregister(&asd->video_out_video_capture); + atomisp_acc_unregister(&asd->video_acc); +} + +int atomisp_subdev_register_entities(struct atomisp_sub_device *asd, + struct v4l2_device *vdev) +{ + int ret; + + /* Register the subdev and video node. */ + ret = v4l2_device_register_subdev(vdev, &asd->subdev); + if (ret < 0) + goto error; + + ret = atomisp_video_register(&asd->video_out_capture, vdev); + if (ret < 0) + goto error; + + ret = atomisp_video_register(&asd->video_out_vf, vdev); + if (ret < 0) + goto error; + + ret = atomisp_video_register(&asd->video_out_preview, vdev); + if (ret < 0) + goto error; + + ret = atomisp_video_register(&asd->video_out_video_capture, vdev); + if (ret < 0) + goto error; + + ret = atomisp_acc_register(&asd->video_acc, vdev); + if (ret < 0) + goto error; + + /* + * file input only supported on subdev0 + * so do not create video node for subdevs other then subdev0 + */ + if (asd->index) + return 0; + ret = atomisp_video_register(&asd->video_in, vdev); + if (ret < 0) + goto error; + + return 0; + +error: + atomisp_subdev_unregister_entities(asd); + return ret; +} + +/* + * 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) +{ + struct atomisp_sub_device *asd; + int i, ret = 0; + + /* + * CSS2.0 running ISP2400 support + * multiple streams + */ + isp->num_of_streams = isp->media_dev.driver_version >= + ATOMISP_CSS_VERSION_20 ? 2 : 1; + isp->asd = devm_kzalloc(isp->dev, sizeof(struct atomisp_sub_device) * + isp->num_of_streams, GFP_KERNEL); + if (!isp->asd) + return -ENOMEM; + for (i = 0; i < isp->num_of_streams; i++) { + asd = &isp->asd[i]; + spin_lock_init(&asd->lock); + asd->isp = isp; + isp_subdev_init_params(asd); + asd->index = i; + ret = isp_subdev_init_entities(asd); + if (ret < 0) { + atomisp_subdev_cleanup_entities(asd); + break; + } + } + + return ret; +} |
