diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/staging/media/rkisp1/rkisp1-resizer.c | 775 |
1 files changed, 775 insertions, 0 deletions
diff --git a/drivers/staging/media/rkisp1/rkisp1-resizer.c b/drivers/staging/media/rkisp1/rkisp1-resizer.c new file mode 100644 index 000000000000..8cdc29c1a178 --- /dev/null +++ b/drivers/staging/media/rkisp1/rkisp1-resizer.c @@ -0,0 +1,775 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Rockchip ISP1 Driver - V4l resizer device + * + * Copyright (C) 2019 Collabora, Ltd. + * + * Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd. + * Copyright (C) 2017 Rockchip Electronics Co., Ltd. + */ + +#include "rkisp1-common.h" + +#define RKISP1_RSZ_SP_DEV_NAME RKISP1_DRIVER_NAME "_resizer_selfpath" +#define RKISP1_RSZ_MP_DEV_NAME RKISP1_DRIVER_NAME "_resizer_mainpath" + +#define RKISP1_DEF_FMT MEDIA_BUS_FMT_YUYV8_2X8 +#define RKISP1_DEF_FMT_TYPE RKISP1_FMT_YUV + +#define RKISP1_MBUS_FMT_HDIV 2 +#define RKISP1_MBUS_FMT_VDIV 1 + +enum rkisp1_shadow_regs_when { + RKISP1_SHADOW_REGS_SYNC, + RKISP1_SHADOW_REGS_ASYNC, +}; + +struct rkisp1_rsz_config { + /* constrains */ + const int max_rsz_width; + const int max_rsz_height; + const int min_rsz_width; + const int min_rsz_height; + /* registers */ + struct { + u32 ctrl; + u32 ctrl_shd; + u32 scale_hy; + u32 scale_hcr; + u32 scale_hcb; + u32 scale_vy; + u32 scale_vc; + u32 scale_lut; + u32 scale_lut_addr; + u32 scale_hy_shd; + u32 scale_hcr_shd; + u32 scale_hcb_shd; + u32 scale_vy_shd; + u32 scale_vc_shd; + u32 phase_hy; + u32 phase_hc; + u32 phase_vy; + u32 phase_vc; + u32 phase_hy_shd; + u32 phase_hc_shd; + u32 phase_vy_shd; + u32 phase_vc_shd; + } rsz; + struct { + u32 ctrl; + u32 yuvmode_mask; + u32 rawmode_mask; + u32 h_offset; + u32 v_offset; + u32 h_size; + u32 v_size; + } dual_crop; +}; + +static const struct rkisp1_rsz_config rkisp1_rsz_config_mp = { + /* constraints */ + .max_rsz_width = RKISP1_RSZ_MP_SRC_MAX_WIDTH, + .max_rsz_height = RKISP1_RSZ_MP_SRC_MAX_HEIGHT, + .min_rsz_width = RKISP1_RSZ_SRC_MIN_WIDTH, + .min_rsz_height = RKISP1_RSZ_SRC_MIN_HEIGHT, + /* registers */ + .rsz = { + .ctrl = RKISP1_CIF_MRSZ_CTRL, + .scale_hy = RKISP1_CIF_MRSZ_SCALE_HY, + .scale_hcr = RKISP1_CIF_MRSZ_SCALE_HCR, + .scale_hcb = RKISP1_CIF_MRSZ_SCALE_HCB, + .scale_vy = RKISP1_CIF_MRSZ_SCALE_VY, + .scale_vc = RKISP1_CIF_MRSZ_SCALE_VC, + .scale_lut = RKISP1_CIF_MRSZ_SCALE_LUT, + .scale_lut_addr = RKISP1_CIF_MRSZ_SCALE_LUT_ADDR, + .scale_hy_shd = RKISP1_CIF_MRSZ_SCALE_HY_SHD, + .scale_hcr_shd = RKISP1_CIF_MRSZ_SCALE_HCR_SHD, + .scale_hcb_shd = RKISP1_CIF_MRSZ_SCALE_HCB_SHD, + .scale_vy_shd = RKISP1_CIF_MRSZ_SCALE_VY_SHD, + .scale_vc_shd = RKISP1_CIF_MRSZ_SCALE_VC_SHD, + .phase_hy = RKISP1_CIF_MRSZ_PHASE_HY, + .phase_hc = RKISP1_CIF_MRSZ_PHASE_HC, + .phase_vy = RKISP1_CIF_MRSZ_PHASE_VY, + .phase_vc = RKISP1_CIF_MRSZ_PHASE_VC, + .ctrl_shd = RKISP1_CIF_MRSZ_CTRL_SHD, + .phase_hy_shd = RKISP1_CIF_MRSZ_PHASE_HY_SHD, + .phase_hc_shd = RKISP1_CIF_MRSZ_PHASE_HC_SHD, + .phase_vy_shd = RKISP1_CIF_MRSZ_PHASE_VY_SHD, + .phase_vc_shd = RKISP1_CIF_MRSZ_PHASE_VC_SHD, + }, + .dual_crop = { + .ctrl = RKISP1_CIF_DUAL_CROP_CTRL, + .yuvmode_mask = RKISP1_CIF_DUAL_CROP_MP_MODE_YUV, + .rawmode_mask = RKISP1_CIF_DUAL_CROP_MP_MODE_RAW, + .h_offset = RKISP1_CIF_DUAL_CROP_M_H_OFFS, + .v_offset = RKISP1_CIF_DUAL_CROP_M_V_OFFS, + .h_size = RKISP1_CIF_DUAL_CROP_M_H_SIZE, + .v_size = RKISP1_CIF_DUAL_CROP_M_V_SIZE, + }, +}; + +static const struct rkisp1_rsz_config rkisp1_rsz_config_sp = { + /* constraints */ + .max_rsz_width = RKISP1_RSZ_SP_SRC_MAX_WIDTH, + .max_rsz_height = RKISP1_RSZ_SP_SRC_MAX_HEIGHT, + .min_rsz_width = RKISP1_RSZ_SRC_MIN_WIDTH, + .min_rsz_height = RKISP1_RSZ_SRC_MIN_HEIGHT, + /* registers */ + .rsz = { + .ctrl = RKISP1_CIF_SRSZ_CTRL, + .scale_hy = RKISP1_CIF_SRSZ_SCALE_HY, + .scale_hcr = RKISP1_CIF_SRSZ_SCALE_HCR, + .scale_hcb = RKISP1_CIF_SRSZ_SCALE_HCB, + .scale_vy = RKISP1_CIF_SRSZ_SCALE_VY, + .scale_vc = RKISP1_CIF_SRSZ_SCALE_VC, + .scale_lut = RKISP1_CIF_SRSZ_SCALE_LUT, + .scale_lut_addr = RKISP1_CIF_SRSZ_SCALE_LUT_ADDR, + .scale_hy_shd = RKISP1_CIF_SRSZ_SCALE_HY_SHD, + .scale_hcr_shd = RKISP1_CIF_SRSZ_SCALE_HCR_SHD, + .scale_hcb_shd = RKISP1_CIF_SRSZ_SCALE_HCB_SHD, + .scale_vy_shd = RKISP1_CIF_SRSZ_SCALE_VY_SHD, + .scale_vc_shd = RKISP1_CIF_SRSZ_SCALE_VC_SHD, + .phase_hy = RKISP1_CIF_SRSZ_PHASE_HY, + .phase_hc = RKISP1_CIF_SRSZ_PHASE_HC, + .phase_vy = RKISP1_CIF_SRSZ_PHASE_VY, + .phase_vc = RKISP1_CIF_SRSZ_PHASE_VC, + .ctrl_shd = RKISP1_CIF_SRSZ_CTRL_SHD, + .phase_hy_shd = RKISP1_CIF_SRSZ_PHASE_HY_SHD, + .phase_hc_shd = RKISP1_CIF_SRSZ_PHASE_HC_SHD, + .phase_vy_shd = RKISP1_CIF_SRSZ_PHASE_VY_SHD, + .phase_vc_shd = RKISP1_CIF_SRSZ_PHASE_VC_SHD, + }, + .dual_crop = { + .ctrl = RKISP1_CIF_DUAL_CROP_CTRL, + .yuvmode_mask = RKISP1_CIF_DUAL_CROP_SP_MODE_YUV, + .rawmode_mask = RKISP1_CIF_DUAL_CROP_SP_MODE_RAW, + .h_offset = RKISP1_CIF_DUAL_CROP_S_H_OFFS, + .v_offset = RKISP1_CIF_DUAL_CROP_S_V_OFFS, + .h_size = RKISP1_CIF_DUAL_CROP_S_H_SIZE, + .v_size = RKISP1_CIF_DUAL_CROP_S_V_SIZE, + }, +}; + +static struct v4l2_mbus_framefmt * +rkisp1_rsz_get_pad_fmt(struct rkisp1_resizer *rsz, + struct v4l2_subdev_pad_config *cfg, + unsigned int pad, u32 which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(&rsz->sd, cfg, pad); + else + return v4l2_subdev_get_try_format(&rsz->sd, rsz->pad_cfg, pad); +} + +static struct v4l2_rect * +rkisp1_rsz_get_pad_crop(struct rkisp1_resizer *rsz, + struct v4l2_subdev_pad_config *cfg, + unsigned int pad, u32 which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_crop(&rsz->sd, cfg, pad); + else + return v4l2_subdev_get_try_crop(&rsz->sd, rsz->pad_cfg, pad); +} + +/* ---------------------------------------------------------------------------- + * Dual crop hw configs + */ + +static void rkisp1_dcrop_disable(struct rkisp1_resizer *rsz, + enum rkisp1_shadow_regs_when when) +{ + u32 dc_ctrl = rkisp1_read(rsz->rkisp1, rsz->config->dual_crop.ctrl); + u32 mask = ~(rsz->config->dual_crop.yuvmode_mask | + rsz->config->dual_crop.rawmode_mask); + + dc_ctrl &= mask; + if (when == RKISP1_SHADOW_REGS_ASYNC) + dc_ctrl |= RKISP1_CIF_DUAL_CROP_GEN_CFG_UPD; + else + dc_ctrl |= RKISP1_CIF_DUAL_CROP_CFG_UPD; + rkisp1_write(rsz->rkisp1, dc_ctrl, rsz->config->dual_crop.ctrl); +} + +/* configure dual-crop unit */ +static void rkisp1_dcrop_config(struct rkisp1_resizer *rsz) +{ + struct rkisp1_device *rkisp1 = rsz->rkisp1; + struct v4l2_mbus_framefmt *sink_fmt; + struct v4l2_rect *sink_crop; + u32 dc_ctrl; + + sink_crop = rkisp1_rsz_get_pad_crop(rsz, NULL, RKISP1_RSZ_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + + if (sink_crop->width == sink_fmt->width && + sink_crop->height == sink_fmt->height && + sink_crop->left == 0 && sink_crop->top == 0) { + rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_SYNC); + dev_dbg(rkisp1->dev, "capture %d crop disabled\n", rsz->id); + return; + } + + dc_ctrl = rkisp1_read(rkisp1, rsz->config->dual_crop.ctrl); + rkisp1_write(rkisp1, sink_crop->left, rsz->config->dual_crop.h_offset); + rkisp1_write(rkisp1, sink_crop->top, rsz->config->dual_crop.v_offset); + rkisp1_write(rkisp1, sink_crop->width, rsz->config->dual_crop.h_size); + rkisp1_write(rkisp1, sink_crop->height, rsz->config->dual_crop.v_size); + dc_ctrl |= rsz->config->dual_crop.yuvmode_mask; + dc_ctrl |= RKISP1_CIF_DUAL_CROP_CFG_UPD; + rkisp1_write(rkisp1, dc_ctrl, rsz->config->dual_crop.ctrl); + + dev_dbg(rkisp1->dev, "stream %d crop: %dx%d -> %dx%d\n", rsz->id, + sink_fmt->width, sink_fmt->height, + sink_crop->width, sink_crop->height); +} + +/* ---------------------------------------------------------------------------- + * Resizer hw configs + */ + +static void rkisp1_rsz_dump_regs(struct rkisp1_resizer *rsz) +{ + dev_dbg(rsz->rkisp1->dev, + "RSZ_CTRL 0x%08x/0x%08x\n" + "RSZ_SCALE_HY %d/%d\n" + "RSZ_SCALE_HCB %d/%d\n" + "RSZ_SCALE_HCR %d/%d\n" + "RSZ_SCALE_VY %d/%d\n" + "RSZ_SCALE_VC %d/%d\n" + "RSZ_PHASE_HY %d/%d\n" + "RSZ_PHASE_HC %d/%d\n" + "RSZ_PHASE_VY %d/%d\n" + "RSZ_PHASE_VC %d/%d\n", + rkisp1_read(rsz->rkisp1, rsz->config->rsz.ctrl), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.ctrl_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hy), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hy_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hcb), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hcb_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hcr), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_hcr_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_vy), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_vy_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_vc), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.scale_vc_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_hy), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_hy_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_hc), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_hc_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_vy), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_vy_shd), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_vc), + rkisp1_read(rsz->rkisp1, rsz->config->rsz.phase_vc_shd)); +} + +static void rkisp1_rsz_update_shadow(struct rkisp1_resizer *rsz, + enum rkisp1_shadow_regs_when when) +{ + u32 ctrl_cfg = rkisp1_read(rsz->rkisp1, rsz->config->rsz.ctrl); + + if (when == RKISP1_SHADOW_REGS_ASYNC) + ctrl_cfg |= RKISP1_CIF_RSZ_CTRL_CFG_UPD_AUTO; + else + ctrl_cfg |= RKISP1_CIF_RSZ_CTRL_CFG_UPD; + + rkisp1_write(rsz->rkisp1, ctrl_cfg, rsz->config->rsz.ctrl); +} + +static u32 rkisp1_rsz_calc_ratio(u32 len_sink, u32 len_src) +{ + if (len_sink < len_src) + return ((len_sink - 1) * RKISP1_CIF_RSZ_SCALER_FACTOR) / + (len_src - 1); + + return ((len_src - 1) * RKISP1_CIF_RSZ_SCALER_FACTOR) / + (len_sink - 1) + 1; +} + +static void rkisp1_rsz_disable(struct rkisp1_resizer *rsz, + enum rkisp1_shadow_regs_when when) +{ + rkisp1_write(rsz->rkisp1, 0, rsz->config->rsz.ctrl); + + if (when == RKISP1_SHADOW_REGS_SYNC) + rkisp1_rsz_update_shadow(rsz, when); +} + +static void rkisp1_rsz_config_regs(struct rkisp1_resizer *rsz, + struct v4l2_rect *sink_y, + struct v4l2_rect *sink_c, + struct v4l2_rect *src_y, + struct v4l2_rect *src_c, + enum rkisp1_shadow_regs_when when) +{ + struct rkisp1_device *rkisp1 = rsz->rkisp1; + u32 ratio, rsz_ctrl = 0; + unsigned int i; + + /* No phase offset */ + rkisp1_write(rkisp1, 0, rsz->config->rsz.phase_hy); + rkisp1_write(rkisp1, 0, rsz->config->rsz.phase_hc); + rkisp1_write(rkisp1, 0, rsz->config->rsz.phase_vy); + rkisp1_write(rkisp1, 0, rsz->config->rsz.phase_vc); + + /* Linear interpolation */ + for (i = 0; i < 64; i++) { + rkisp1_write(rkisp1, i, rsz->config->rsz.scale_lut_addr); + rkisp1_write(rkisp1, i, rsz->config->rsz.scale_lut); + } + + if (sink_y->width != src_y->width) { + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HY_ENABLE; + if (sink_y->width < src_y->width) + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HY_UP; + ratio = rkisp1_rsz_calc_ratio(sink_y->width, src_y->width); + rkisp1_write(rkisp1, ratio, rsz->config->rsz.scale_hy); + } + + if (sink_c->width != src_c->width) { + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HC_ENABLE; + if (sink_c->width < src_c->width) + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HC_UP; + ratio = rkisp1_rsz_calc_ratio(sink_c->width, src_c->width); + rkisp1_write(rkisp1, ratio, rsz->config->rsz.scale_hcb); + rkisp1_write(rkisp1, ratio, rsz->config->rsz.scale_hcr); + } + + if (sink_y->height != src_y->height) { + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VY_ENABLE; + if (sink_y->height < src_y->height) + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VY_UP; + ratio = rkisp1_rsz_calc_ratio(sink_y->height, src_y->height); + rkisp1_write(rkisp1, ratio, rsz->config->rsz.scale_vy); + } + + if (sink_c->height != src_c->height) { + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VC_ENABLE; + if (sink_c->height < src_c->height) + rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VC_UP; + ratio = rkisp1_rsz_calc_ratio(sink_c->height, src_c->height); + rkisp1_write(rkisp1, ratio, rsz->config->rsz.scale_vc); + } + + rkisp1_write(rkisp1, rsz_ctrl, rsz->config->rsz.ctrl); + + rkisp1_rsz_update_shadow(rsz, when); +} + +static void rkisp1_rsz_config(struct rkisp1_resizer *rsz, + enum rkisp1_shadow_regs_when when) +{ + u8 hdiv = RKISP1_MBUS_FMT_HDIV, vdiv = RKISP1_MBUS_FMT_VDIV; + struct v4l2_rect sink_y, sink_c, src_y, src_c; + struct v4l2_mbus_framefmt *src_fmt; + struct v4l2_rect *sink_crop; + + sink_crop = rkisp1_rsz_get_pad_crop(rsz, NULL, RKISP1_RSZ_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + src_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SRC, + V4L2_SUBDEV_FORMAT_ACTIVE); + + if (rsz->fmt_type == RKISP1_FMT_BAYER) { + rkisp1_rsz_disable(rsz, when); + return; + } + + sink_y.width = sink_crop->width; + sink_y.height = sink_crop->height; + src_y.width = src_fmt->width; + src_y.height = src_fmt->height; + + sink_c.width = sink_y.width / RKISP1_MBUS_FMT_HDIV; + sink_c.height = sink_y.height / RKISP1_MBUS_FMT_VDIV; + + if (rsz->fmt_type == RKISP1_FMT_YUV) { + struct rkisp1_capture *cap = + &rsz->rkisp1->capture_devs[rsz->id]; + const struct v4l2_format_info *pixfmt_info = + v4l2_format_info(cap->pix.fmt.pixelformat); + + hdiv = pixfmt_info->hdiv; + vdiv = pixfmt_info->vdiv; + } + src_c.width = src_y.width / hdiv; + src_c.height = src_y.height / vdiv; + + if (sink_c.width == src_c.width && sink_c.height == src_c.height) { + rkisp1_rsz_disable(rsz, when); + return; + } + + dev_dbg(rsz->rkisp1->dev, "stream %d rsz/scale: %dx%d -> %dx%d\n", + rsz->id, sink_crop->width, sink_crop->height, + src_fmt->width, src_fmt->height); + dev_dbg(rsz->rkisp1->dev, "chroma scaling %dx%d -> %dx%d\n", + sink_c.width, sink_c.height, src_c.width, src_c.height); + + /* set values in the hw */ + rkisp1_rsz_config_regs(rsz, &sink_y, &sink_c, &src_y, &src_c, when); + + rkisp1_rsz_dump_regs(rsz); +} + +/* ---------------------------------------------------------------------------- + * Subdev pad operations + */ + +static int rkisp1_rsz_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + struct v4l2_subdev_pad_config dummy_cfg; + u32 pad = code->pad; + int ret; + + /* supported mbus codes are the same in isp sink pad */ + code->pad = RKISP1_ISP_PAD_SINK_VIDEO; + ret = v4l2_subdev_call(&rsz->rkisp1->isp.sd, pad, enum_mbus_code, + &dummy_cfg, code); + + /* restore pad */ + code->pad = pad; + return ret; +} + +static int rkisp1_rsz_init_config(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg) +{ + struct v4l2_mbus_framefmt *sink_fmt, *src_fmt; + struct v4l2_rect *sink_crop; + + sink_fmt = v4l2_subdev_get_try_format(sd, cfg, RKISP1_RSZ_PAD_SRC); + sink_fmt->width = RKISP1_DEFAULT_WIDTH; + sink_fmt->height = RKISP1_DEFAULT_HEIGHT; + sink_fmt->field = V4L2_FIELD_NONE; + sink_fmt->code = RKISP1_DEF_FMT; + + sink_crop = v4l2_subdev_get_try_crop(sd, cfg, RKISP1_RSZ_PAD_SINK); + sink_crop->width = RKISP1_DEFAULT_WIDTH; + sink_crop->height = RKISP1_DEFAULT_HEIGHT; + sink_crop->left = 0; + sink_crop->top = 0; + + src_fmt = v4l2_subdev_get_try_format(sd, cfg, RKISP1_RSZ_PAD_SINK); + *src_fmt = *sink_fmt; + + /* NOTE: there is no crop in the source pad, only in the sink */ + + return 0; +} + +static void rkisp1_rsz_set_src_fmt(struct rkisp1_resizer *rsz, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_mbus_framefmt *format, + unsigned int which) +{ + struct v4l2_mbus_framefmt *src_fmt; + + src_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SRC, which); + src_fmt->width = clamp_t(u32, format->width, + rsz->config->min_rsz_width, + rsz->config->max_rsz_width); + src_fmt->height = clamp_t(u32, format->height, + rsz->config->min_rsz_height, + rsz->config->max_rsz_height); + + *format = *src_fmt; +} + +static void rkisp1_rsz_set_sink_crop(struct rkisp1_resizer *rsz, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_rect *r, + unsigned int which) +{ + const struct rkisp1_isp_mbus_info *mbus_info; + struct v4l2_mbus_framefmt *sink_fmt; + struct v4l2_rect *sink_crop; + + sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SINK, which); + sink_crop = rkisp1_rsz_get_pad_crop(rsz, cfg, RKISP1_RSZ_PAD_SINK, + which); + + /* Not crop for MP bayer raw data */ + mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code); + + if (rsz->id == RKISP1_MAINPATH && + mbus_info->fmt_type == RKISP1_FMT_BAYER) { + sink_crop->left = 0; + sink_crop->top = 0; + sink_crop->width = sink_fmt->width; + sink_crop->height = sink_fmt->height; + return; + } + + sink_crop->left = ALIGN(r->left, 2); + sink_crop->width = ALIGN(r->width, 2); + sink_crop->top = r->top; + sink_crop->height = r->height; + rkisp1_sd_adjust_crop(sink_crop, sink_fmt); + + *r = *sink_crop; +} + +static void rkisp1_rsz_set_sink_fmt(struct rkisp1_resizer *rsz, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_mbus_framefmt *format, + unsigned int which) +{ + const struct rkisp1_isp_mbus_info *mbus_info; + struct v4l2_mbus_framefmt *sink_fmt, *src_fmt; + struct v4l2_rect *sink_crop; + + sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SINK, which); + src_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SRC, which); + sink_crop = rkisp1_rsz_get_pad_crop(rsz, cfg, RKISP1_RSZ_PAD_SINK, + which); + sink_fmt->code = format->code; + mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code); + if (!mbus_info) { + sink_fmt->code = RKISP1_DEF_FMT; + mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code); + } + if (which == V4L2_SUBDEV_FORMAT_ACTIVE) + rsz->fmt_type = mbus_info->fmt_type; + + if (rsz->id == RKISP1_MAINPATH && + mbus_info->fmt_type == RKISP1_FMT_BAYER) { + sink_crop->left = 0; + sink_crop->top = 0; + sink_crop->width = sink_fmt->width; + sink_crop->height = sink_fmt->height; + return; + } + + /* Propagete to source pad */ + src_fmt->code = sink_fmt->code; + + sink_fmt->width = clamp_t(u32, format->width, + rsz->config->min_rsz_width, + rsz->config->max_rsz_width); + sink_fmt->height = clamp_t(u32, format->height, + rsz->config->min_rsz_height, + rsz->config->max_rsz_height); + + *format = *sink_fmt; + + /* Update sink crop */ + rkisp1_rsz_set_sink_crop(rsz, cfg, sink_crop, which); +} + +static int rkisp1_rsz_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + + fmt->format = *rkisp1_rsz_get_pad_fmt(rsz, cfg, fmt->pad, fmt->which); + return 0; +} + +static int rkisp1_rsz_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + + if (fmt->pad == RKISP1_RSZ_PAD_SINK) + rkisp1_rsz_set_sink_fmt(rsz, cfg, &fmt->format, fmt->which); + else + rkisp1_rsz_set_src_fmt(rsz, cfg, &fmt->format, fmt->which); + + return 0; +} + +static int rkisp1_rsz_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + struct v4l2_mbus_framefmt *mf_sink; + + if (sel->pad == RKISP1_RSZ_PAD_SRC) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + mf_sink = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SINK, + sel->which); + sel->r.height = mf_sink->height; + sel->r.width = mf_sink->width; + sel->r.left = 0; + sel->r.top = 0; + break; + case V4L2_SEL_TGT_CROP: + sel->r = *rkisp1_rsz_get_pad_crop(rsz, cfg, RKISP1_RSZ_PAD_SINK, + sel->which); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int rkisp1_rsz_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + + if (sel->target != V4L2_SEL_TGT_CROP || sel->pad == RKISP1_RSZ_PAD_SRC) + return -EINVAL; + + dev_dbg(sd->dev, "%s: pad: %d sel(%d,%d)/%dx%d\n", __func__, + sel->pad, sel->r.left, sel->r.top, sel->r.width, sel->r.height); + + rkisp1_rsz_set_sink_crop(rsz, cfg, &sel->r, sel->which); + + return 0; +} + +static const struct media_entity_operations rkisp1_rsz_media_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + +static const struct v4l2_subdev_pad_ops rkisp1_rsz_pad_ops = { + .enum_mbus_code = rkisp1_rsz_enum_mbus_code, + .get_selection = rkisp1_rsz_get_selection, + .set_selection = rkisp1_rsz_set_selection, + .init_cfg = rkisp1_rsz_init_config, + .get_fmt = rkisp1_rsz_get_fmt, + .set_fmt = rkisp1_rsz_set_fmt, + .link_validate = v4l2_subdev_link_validate_default, +}; + +/* ---------------------------------------------------------------------------- + * Stream operations + */ + +static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct rkisp1_resizer *rsz = + container_of(sd, struct rkisp1_resizer, sd); + struct rkisp1_device *rkisp1 = rsz->rkisp1; + struct rkisp1_capture *other = &rkisp1->capture_devs[rsz->id ^ 1]; + enum rkisp1_shadow_regs_when when = RKISP1_SHADOW_REGS_SYNC; + + if (!enable) { + rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC); + rkisp1_rsz_disable(rsz, RKISP1_SHADOW_REGS_ASYNC); + return 0; + } + + if (other->is_streaming) + when = RKISP1_SHADOW_REGS_ASYNC; + + rkisp1_rsz_config(rsz, when); + rkisp1_dcrop_config(rsz); + + return 0; +} + +static const struct v4l2_subdev_video_ops rkisp1_rsz_video_ops = { + .s_stream = rkisp1_rsz_s_stream, +}; + +static const struct v4l2_subdev_ops rkisp1_rsz_ops = { + .video = &rkisp1_rsz_video_ops, + .pad = &rkisp1_rsz_pad_ops, +}; + +static void rkisp1_rsz_unregister(struct rkisp1_resizer *rsz) +{ + v4l2_device_unregister_subdev(&rsz->sd); + media_entity_cleanup(&rsz->sd.entity); +} + +static int rkisp1_rsz_register(struct rkisp1_resizer *rsz) +{ + const char * const dev_names[] = {RKISP1_RSZ_MP_DEV_NAME, + RKISP1_RSZ_SP_DEV_NAME}; + struct media_pad *pads = rsz->pads; + struct v4l2_subdev *sd = &rsz->sd; + int ret; + + if (rsz->id == RKISP1_SELFPATH) + rsz->config = &rkisp1_rsz_config_sp; + else + rsz->config = &rkisp1_rsz_config_mp; + + v4l2_subdev_init(sd, &rkisp1_rsz_ops); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + sd->entity.ops = &rkisp1_rsz_media_ops; + sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; + sd->owner = THIS_MODULE; + strscpy(sd->name, dev_names[rsz->id], sizeof(sd->name)); + + pads[RKISP1_RSZ_PAD_SINK].flags = MEDIA_PAD_FL_SINK | + MEDIA_PAD_FL_MUST_CONNECT; + pads[RKISP1_RSZ_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE | + MEDIA_PAD_FL_MUST_CONNECT; + + rsz->fmt_type = RKISP1_DEF_FMT_TYPE; + + ret = media_entity_pads_init(&sd->entity, 2, pads); + if (ret) + return ret; + + ret = v4l2_device_register_subdev(&rsz->rkisp1->v4l2_dev, sd); + if (ret) { + dev_err(sd->dev, "Failed to register resizer subdev\n"); + goto err_cleanup_media_entity; + } + + rkisp1_rsz_init_config(sd, rsz->pad_cfg); + return 0; + +err_cleanup_media_entity: + media_entity_cleanup(&sd->entity); + + return ret; +} + +int rkisp1_resizer_devs_register(struct rkisp1_device *rkisp1) +{ + struct rkisp1_resizer *rsz; + unsigned int i, j; + int ret; + + for (i = 0; i < ARRAY_SIZE(rkisp1->resizer_devs); i++) { + rsz = &rkisp1->resizer_devs[i]; + rsz->rkisp1 = rkisp1; + rsz->id = i; + ret = rkisp1_rsz_register(rsz); + if (ret) + goto err_unreg_resizer_devs; + } + + return 0; + +err_unreg_resizer_devs: + for (j = 0; j < i; j++) { + rsz = &rkisp1->resizer_devs[j]; + rkisp1_rsz_unregister(rsz); + } + + return ret; +} + +void rkisp1_resizer_devs_unregister(struct rkisp1_device *rkisp1) +{ + struct rkisp1_resizer *mp = &rkisp1->resizer_devs[RKISP1_MAINPATH]; + struct rkisp1_resizer *sp = &rkisp1->resizer_devs[RKISP1_SELFPATH]; + + rkisp1_rsz_unregister(mp); + rkisp1_rsz_unregister(sp); +} |