// SPDX-License-Identifier: GPL-2.0-only /* * Samsung LSI S5C73M3 8M pixel camera driver * * Copyright (C) 2012, Samsung Electronics, Co., Ltd. * Sylwester Nawrocki * Andrzej Hajda */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "s5c73m3.h" static int s5c73m3_get_af_status(struct s5c73m3 *state, struct v4l2_ctrl *ctrl) { u16 reg = REG_AF_STATUS_UNFOCUSED; int ret = s5c73m3_read(state, REG_AF_STATUS, ®); switch (reg) { case REG_CAF_STATUS_FIND_SEARCH_DIR: case REG_AF_STATUS_FOCUSING: case REG_CAF_STATUS_FOCUSING: ctrl->val = V4L2_AUTO_FOCUS_STATUS_BUSY; break; case REG_CAF_STATUS_FOCUSED: case REG_AF_STATUS_FOCUSED: ctrl->val = V4L2_AUTO_FOCUS_STATUS_REACHED; break; default: v4l2_info(&state->sensor_sd, "Unknown AF status %#x\n", reg); /* Fall through */ case REG_CAF_STATUS_UNFOCUSED: case REG_AF_STATUS_UNFOCUSED: case REG_AF_STATUS_INVALID: ctrl->val = V4L2_AUTO_FOCUS_STATUS_FAILED; break; } return ret; } static int s5c73m3_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl); struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd); int ret; if (state->power == 0) return -EBUSY; switch (ctrl->id) { case V4L2_CID_FOCUS_AUTO: ret = s5c73m3_get_af_status(state, state->ctrls.af_status); if (ret) return ret; break; } return 0; } static int s5c73m3_set_colorfx(struct s5c73m3 *state, int val) { static const unsigned short colorfx[][2] = { { V4L2_COLORFX_NONE, COMM_IMAGE_EFFECT_NONE }, { V4L2_COLORFX_BW, COMM_IMAGE_EFFECT_MONO }, { V4L2_COLORFX_SEPIA, COMM_IMAGE_EFFECT_SEPIA }, { V4L2_COLORFX_NEGATIVE, COMM_IMAGE_EFFECT_NEGATIVE }, { V4L2_COLORFX_AQUA, COMM_IMAGE_EFFECT_AQUA }, }; int i; for (i = 0; i < ARRAY_SIZE(colorfx); i++) { if (colorfx[i][0] != val) continue; v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd, "Setting %s color effect\n", v4l2_ctrl_get_menu(state->ctrls.colorfx->id)[i]); return s5c73m3_isp_command(state, COMM_IMAGE_EFFECT, colorfx[i][1]); } return -EINVAL; } /* Set exposure metering/exposure bias */ static int s5c73m3_set_exposure(struct s5c73m3 *state, int auto_exp) { struct v4l2_subdev *sd = &state->sensor_sd; struct s5c73m3_ctrls *ctrls = &state->ctrls; int ret = 0; if (ctrls->exposure_metering->is_new) { u16 metering; switch (ctrls->exposure_metering->val) { case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED: metering = COMM_METERING_CENTER; break; case V4L2_EXPOSURE_METERING_SPOT: metering = COMM_METERING_SPOT; break; default: metering = COMM_METERING_AVERAGE; break; } ret = s5c73m3_isp_command(state, COMM_METERING, metering); } if (!ret && ctrls->exposure_bias->is_new) { u16 exp_bias = ctrls->exposure_bias->val; ret = s5c73m3_isp_command(state, COMM_EV, exp_bias); } v4l2_dbg(1, s5c73m3_dbg, sd, "%s: exposure bias: %#x, metering: %#x (%d)\n", __func__, ctrls->exposure_bias->val, ctrls->exposure_metering->val, ret); return ret; } static int s5c73m3_set_white_balance(struct s5c73m3 *state, int val) { static const unsigned short wb[][2] = { { V4L2_WHITE_BALANCE_INCANDESCENT, COMM_AWB_MODE_INCANDESCENT}, { V4L2_WHITE_BALANCE_FLUORESCENT, COMM_AWB_MODE_FLUORESCENT1}, { V4L2_WHITE_BALANCE_FLUORESCENT_H, COMM_AWB_MODE_FLUORESCENT2}, { V4L2_WHITE_BALANCE_CLOUDY, COMM_AWB_MODE_CLOUDY}, { V4L2_WHITE_BALANCE_DAYLIGHT, COMM_AWB_MODE_DAYLIGHT}, { V4L2_WHITE_BALANCE_AUTO, COMM_AWB_MODE_AUTO}, }; int i; for (i = 0; i < ARRAY_SIZE(wb); i++) { if (wb[i][0] != val) continue; v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd, "Setting white balance to: %s\n", v4l2_ctrl_get_menu(state->ctrls.auto_wb->id)[i]); return s5c73m3_isp_command(state, COMM_AWB_MODE, wb[i][1]); } return -EINVAL; } static int s5c73m3_af_run(struct s5c73m3 *state, bool on) { struct s5c73m3_ctrls *c = &state->ctrls; if (!on) return s5c73m3_isp_command(state, COMM_AF_CON, COMM_AF_CON_STOP); if (c->focus_auto->val) return s5c73m3_isp_command(state, COMM_AF_MODE, COMM_AF_MODE_PREVIEW_CAF_START); return s5c73m3_isp_command(state, COMM_AF_CON, COMM_AF_CON_START); } static int s5c73m3_3a_lock(struct s5c73m3 *state, struct v4l2_ctrl *ctrl) { bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE; bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE; bool af_lock = ctrl->val & V4L2_LOCK_FOCUS; int ret = 0; if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_EXPOSURE) { ret = s5c73m3_isp_command(state, COMM_AE_CON, ae_lock ? COMM_AE_STOP : COMM_AE_START); if (ret) return ret; } if (((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_WHITE_BALANCE) && state->ctrls.auto_wb->val) { ret = s5c73m3_isp_command(state, COMM_AWB_CON, awb_lock ? COMM_AWB_STOP : COMM_AWB_START); if (ret) return ret; } if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_FOCUS) ret = s5c73m3_af_run(state, !af_lock); return ret; } static int s5c73m3_set_auto_focus(struct s5c73m3 *state, int caf) { struct s5c73m3_ctrls *c = &state->ctrls; int ret = 1; if (c->af_distance->is_new) { u16 mode = (c->af_distance->val == V4L2_AUTO_FOCUS_RANGE_MACRO) ? COMM_AF_MODE_MACRO : COMM_AF_MODE_NORMAL; ret = s5c73m3_isp_command(state, COMM_AF_MODE, mode); if (ret != 0) return ret; } if (!ret || (c->focus_auto->is_new && c->focus_auto->val) || c->af_start->is_new) ret = s5c73m3_af_run(state, 1); else if ((c->focus_auto->is_new && !c->focus_auto->val) || c->af_stop->is_new) ret = s5c73m3_af_run(state, 0); else ret = 0; return ret; } static int s5c73m3_set_contrast(struct s5c73m3 *state, int val) { u16 reg = (val < 0) ? -val + 2 : val; return s5c73m3_isp_command(state, COMM_CONTRAST, reg); } static int s5c73m3_set_saturation(struct s5c73m3 *state, int val) { u16 reg = (val < 0) ? -val + 2 : val; return s5c73m3_isp_command(state, COMM_SATURATION, reg); } static int s5c73m3_set_sharpness(struct s5c73m3 *state, int val) { u16 reg = (val < 0) ? -val + 2 : val; return s5c73m3_isp_command(state, COMM_SHARPNESS, reg); } static int s5c73m3_set_iso(struct s5c73m3 *state, int val) { u32 iso; if (val == V4L2_ISO_SENSITIVITY_MANUAL) iso = state->ctrls.iso->val + 1; else iso = 0; return s5c73m3_isp_command(state, COMM_ISO, iso); } static int s5c73m3_set_stabilization(struct s5c73m3 *state, int val) { struct v4l2_subdev *sd = &state->sensor_sd; v4l2_dbg(1, s5c73m3_dbg, sd, "Image stabilization: %d\n", val); return s5c73m3_isp_command(state, COMM_FRAME_RATE, val ? COMM_FRAME_RATE_ANTI_SHAKE : COMM_FRAME_RATE_AUTO_SET); } static int s5c73m3_set_jpeg_quality(struct s5c73m3 *state, int quality) { int reg; if (quality <= 65) reg = COMM_IMAGE_QUALITY_NORMAL; else if (quality <= 75) reg = COMM_IMAGE_QUALITY_FINE; else reg = COMM_IMAGE_QUALITY_SUPERFINE; return s5c73m3_isp_command(state, COMM_IMAGE_QUALITY, reg); } static int s5c73m3_set_scene_program(struct s5c73m3 *state, int val) { static const unsigned short scene_lookup[] = { COMM_SCENE_MODE_NONE, /* V4L2_SCENE_MODE_NONE */ COMM_SCENE_MODE_AGAINST_LIGHT,/* V4L2_SCENE_MODE_BACKLIGHT */ COMM_SCENE_MODE_BEACH, /* V4L2_SCENE_MODE_BEACH_SNOW */ COMM_SCENE_MODE_CANDLE, /* V4L2_SCENE_MODE_CANDLE_LIGHT */ COMM_SCENE_MODE_DAWN, /* V4L2_SCENE_MODE_DAWN_DUSK */ COMM_SCENE_MODE_FALL, /* V4L2_SCENE_MODE_FALL_COLORS */ COMM_SCENE_MODE_FIRE, /* V4L2_SCENE_MODE_FIREWORKS */ COMM_SCENE_MODE_LANDSCAPE, /* V4L2_SCENE_MODE_LANDSCAPE */ COMM_SCENE_MODE_NIGHT, /* V4L2_SCENE_MODE_NIGHT */ COMM_SCENE_MODE_INDOOR, /* V4L2_SCENE_MODE_PARTY_INDOOR */ COMM_SCENE_MODE_PORTRAIT, /* V4L2_SCENE_MODE_PORTRAIT */ COMM_SCENE_MODE_SPORTS, /* V4L2_SCENE_MODE_SPORTS */ COMM_SCENE_MODE_SUNSET, /* V4L2_SCENE_MODE_SUNSET */ COMM_SCENE_MODE_TEXT, /* V4L2_SCENE_MODE_TEXT */ }; v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd, "Setting %s scene mode\n", v4l2_ctrl_get_menu(state->ctrls.scene_mode->id)[val]); return s5c73m3_isp_command(state, COMM_SCENE_MODE, scene_lookup[val]); } static int s5c73m3_set_power_line_freq(struct s5c73m3 *state, int val) { unsigned int pwr_line_freq = COMM_FLICKER_NONE; switch (val) { case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED: pwr_line_freq = COMM_FLICKER_NONE; break; case V4L2_CID_POWER_LINE_FREQUENCY_50HZ: pwr_line_freq = COMM_FLICKER_AUTO_50HZ; break; case V4L2_CID_POWER_LINE_FREQUENCY_60HZ: pwr_line_freq = COMM_FLICKER_AUTO_60HZ; break; default: case V4L2_CID_POWER_LINE_FREQUENCY_AUTO: pwr_line_freq = COMM_FLICKER_NONE; } return s5c73m3_isp_command(state, COMM_FLICKER_MODE, pwr_line_freq); } static int s5c73m3_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl); struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd); int ret = 0; v4l2_dbg(1, s5c73m3_dbg, sd, "set_ctrl: %s, value: %d\n", ctrl->name, ctrl->val); mutex_lock(&state->lock); /* * If the device is not powered up by the host driver do * not apply any controls to H/W at this time. Instead * the controls will be restored right after power-up. */ if (state->power == 0) goto unlock; if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) { ret = -EINVAL; goto unlock; } switch (ctrl->id) { case V4L2_CID_3A_LOCK: ret = s5c73m3_3a_lock(state, ctrl); break; case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: ret = s5c73m3_set_white_balance(state, ctrl->val); break; case V4L2_CID_CONTRAST: ret = s5c73m3_set_contrast(state, ctrl->val); break; case V4L2_CID_COLORFX: ret = s5c73m3_set_colorfx(state, ctrl->val); break; case V4L2_CID_EXPOSURE_AUTO: ret = s5c73m3_set_exposure(state, ctrl->val); break; case V4L2_CID_FOCUS_AUTO: ret = s5c73m3_set_auto_focus(state, ctrl->val); break; case V4L2_CID_IMAGE_STABILIZATION: ret = s5c73m3_set_stabilization(state, ctrl->val); break; case V4L2_CID_ISO_SENSITIVITY: ret = s5c73m3_set_iso(state, ctrl->val); break; case V4L2_CID_JPEG_COMPRESSION_QUALITY: ret = s5c73m3_set_jpeg_quality(state, ctrl->val); break; case V4L2_CID_POWER_LINE_FREQUENCY: ret = s5c73m3_set_power_line_freq(state, ctrl->val); break; case V4L2_CID_SATURATION: ret = s5c73m3_set_saturation(state, ctrl->val); break; case V4L2_CID_SCENE_MODE: ret = s5c73m3_set_scene_program(state, ctrl->val); break; case V4L2_CID_SHARPNESS: ret = s5c73m3_set_sharpness(state, ctrl->val); break; case V4L2_CID_WIDE_DYNAMIC_RANGE: ret = s5c73m3_isp_command(state, COMM_WDR, !!ctrl->val); break; case V4L2_CID_ZOOM_ABSOLUTE: ret = s5c73m3_isp_command(state, COMM_ZOOM_STEP, ctrl->val); break; } unlock: mutex_unlock(&state->lock); return ret; } static const struct v4l2_ctrl_ops s5c73m3_ctrl_ops = { .g_volatile_ctrl = s5c73m3_g_volatile_ctrl, .s_ctrl = s5c73m3_s_ctrl, }; /* Supported manual ISO values */ static const s64 iso_qmenu[] = { /* COMM_ISO: 0x0001...0x0004 */ 100, 200, 400, 800, }; /* Supported exposure bias values (-2.0EV...+2.0EV) */ static const s64 ev_bias_qmenu[] = { /* COMM_EV: 0x0000...0x0008 */ -2000, -1500, -1000, -500, 0, 500, 1000, 1500, 2000 }; int s5c73m3_init_controls(struct s5c73m3 *state) { const struct v4l2_ctrl_ops *ops = &s5c73m3_ctrl_ops; struct s5c73m3_ctrls *ctrls = &state->ctrls; struct v4l2_ctrl_handler *hdl = &ctrls->handler; int ret = v4l2_ctrl_handler_init(hdl, 22); if (ret) return ret; /* White balance */ ctrls->auto_wb = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, 9, ~0x15e, V4L2_WHITE_BALANCE_AUTO); /* Exposure (only automatic exposure) */ ctrls->auto_exposure = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_EXPOSURE_AUTO, 0, ~0x01, V4L2_EXPOSURE_AUTO); ctrls->exposure_bias = v4l2_ctrl_new_int_menu(hdl, ops, V4L2_CID_AUTO_EXPOSURE_BIAS, ARRAY_SIZE(ev_bias_qmenu) - 1, ARRAY_SIZE(ev_bias_qmenu)/2 - 1, ev_bias_qmenu); ctrls->exposure_metering = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_EXPOSURE_METERING, 2, ~0x7, V4L2_EXPOSURE_METERING_AVERAGE); /* Auto focus */ ctrls->focus_auto = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_AUTO, 0, 1, 1, 0); ctrls->af_start = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_FOCUS_START, 0, 1, 1, 0); ctrls->af_stop = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_FOCUS_STOP, 0, 1, 1, 0); ctrls->af_status = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_FOCUS_STATUS, 0, (V4L2_AUTO_FOCUS_STATUS_BUSY | V4L2_AUTO_FOCUS_STATUS_REACHED | V4L2_AUTO_FOCUS_STATUS_FAILED), 0, V4L2_AUTO_FOCUS_STATUS_IDLE); ctrls->af_distance = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_AUTO_FOCUS_RANGE, V4L2_AUTO_FOCUS_RANGE_MACRO, ~(1 << V4L2_AUTO_FOCUS_RANGE_NORMAL | 1 << V4L2_AUTO_FOCUS_RANGE_MACRO), V4L2_AUTO_FOCUS_RANGE_NORMAL); /* ISO sensitivity */ ctrls->auto_iso = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0, V4L2_ISO_SENSITIVITY_AUTO); ctrls->iso = v4l2_ctrl_new_int_menu(hdl, ops, V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1, ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu); ctrls->contrast = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -2, 2, 1, 0); ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, -2, 2, 1, 0); ctrls->sharpness = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SHARPNESS, -2, 2, 1, 0); ctrls->zoom = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_ZOOM_ABSOLUTE, 0, 30, 1, 0); ctrls->colorfx = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_COLORFX, V4L2_COLORFX_AQUA, ~0x40f, V4L2_COLORFX_NONE); ctrls->wdr = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_WIDE_DYNAMIC_RANGE, 0, 1, 1, 0); ctrls->stabilization = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_IMAGE_STABILIZATION, 0, 1, 1, 0); v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_POWER_LINE_FREQUENCY, V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0, V4L2_CID_POWER_LINE_FREQUENCY_AUTO); ctrls->jpeg_quality = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, 100, 1, 80); ctrls->scene_mode = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_SCENE_MODE, V4L2_SCENE_MODE_TEXT, ~0x3fff, V4L2_SCENE_MODE_NONE); ctrls->aaa_lock = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_3A_LOCK, 0, 0x7, 0, 0); if (hdl->error) { ret = hdl->error; v4l2_ctrl_handler_free(hdl); return ret; } v4l2_ctrl_auto_cluster(3, &ctrls->auto_exposure, 0, false); ctrls->auto_iso->flags |= V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_UPDATE; v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso, 0, false); ctrls->af_status->flags |= V4L2_CTRL_FLAG_VOLATILE; v4l2_ctrl_cluster(5, &ctrls->focus_auto); state->sensor_sd.ctrl_handler = hdl; return 0; }