drivers/media/platform/msm/camera/cam_sensor_module/cam_actuator/cam_actuator_core.c - kernel/msm-4.9 - Gitiles

 /* Copyright (c) 2017, The Linux Foundation. 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 and
  * only 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 <cam_sensor_cmn_header.h>
 #include "cam_actuator_core.h"
 #include "cam_sensor_util.h"
 #include "cam_trace.h"

 static int32_t cam_actuator_i2c_modes_util(
 	struct camera_io_master *io_master_info,
 	struct i2c_settings_list *i2c_list)
 {
 	int32_t rc = 0;
 	uint32_t i, size;

 	if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_RANDOM) {
 		rc = camera_io_dev_write(io_master_info,
 			&(i2c_list->i2c_settings));
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed to random write I2C settings: %d",
 				rc);
 			return rc;
 		}
 	} else if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_SEQ) {
 		rc = camera_io_dev_write_continuous(
 			io_master_info,
 			&(i2c_list->i2c_settings),
 			0);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed to seq write I2C settings: %d",
 				rc);
 			return rc;
 			}
 	} else if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_BURST) {
 		rc = camera_io_dev_write_continuous(
 			io_master_info,
 			&(i2c_list->i2c_settings),
 			1);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed to burst write I2C settings: %d",
 				rc);
 			return rc;
 		}
 	} else if (i2c_list->op_code == CAM_SENSOR_I2C_POLL) {
 		size = i2c_list->i2c_settings.size;
 		for (i = 0; i < size; i++) {
 			rc = camera_io_dev_poll(
 			io_master_info,
 			i2c_list->i2c_settings.
 				reg_setting[i].reg_addr,
 			i2c_list->i2c_settings.
 				reg_setting[i].reg_data,
 			i2c_list->i2c_settings.
 				reg_setting[i].data_mask,
 			i2c_list->i2c_settings.addr_type,
 				i2c_list->i2c_settings.data_type,
 			i2c_list->i2c_settings.
 				reg_setting[i].delay);
 			if (rc < 0) {
 				CAM_ERR(CAM_ACTUATOR,
 					"i2c poll apply setting Fail: %d", rc);
 				return rc;
 			}
 		}
 	}

 	return rc;
 }

 int32_t cam_actuator_slaveInfo_pkt_parser(struct cam_actuator_ctrl_t *a_ctrl,
 	uint32_t *cmd_buf)
 {
 	int32_t rc = 0;
 	struct cam_cmd_i2c_info *i2c_info;

 	if (!a_ctrl || !cmd_buf) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Args");
 		return -EINVAL;
 	}

 	i2c_info = (struct cam_cmd_i2c_info *)cmd_buf;
 	if (a_ctrl->io_master_info.master_type == CCI_MASTER) {
 		a_ctrl->io_master_info.cci_client->i2c_freq_mode =
 			i2c_info->i2c_freq_mode;
 		a_ctrl->io_master_info.cci_client->sid =
 			i2c_info->slave_addr >> 1;
 		CAM_DBG(CAM_ACTUATOR, "Slave addr: 0x%x Freq Mode: %d",
 			i2c_info->slave_addr, i2c_info->i2c_freq_mode);
 	} else if (a_ctrl->io_master_info.master_type == I2C_MASTER) {
 		a_ctrl->io_master_info.client->addr = i2c_info->slave_addr;
 		CAM_DBG(CAM_ACTUATOR, "Slave addr: 0x%x", i2c_info->slave_addr);
 	} else {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Master type: %d",
 			a_ctrl->io_master_info.master_type);
 		 rc = -EINVAL;
 	}

 	return rc;
 }

 int32_t cam_actuator_apply_settings(struct cam_actuator_ctrl_t *a_ctrl,
 	struct i2c_settings_array *i2c_set)
 {
 	struct i2c_settings_list *i2c_list;
 	int32_t rc = 0;

 	if (a_ctrl == NULL || i2c_set == NULL) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Args");
 		return -EINVAL;
 	}

 	if (i2c_set->is_settings_valid != 1) {
 		CAM_ERR(CAM_ACTUATOR, " Invalid settings");
 		return -EINVAL;
 	}

 	list_for_each_entry(i2c_list,
 		&(i2c_set->list_head), list) {
 		rc = cam_actuator_i2c_modes_util(
 			&(a_ctrl->io_master_info),
 			i2c_list);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed to apply settings: %d",
 				rc);
 			return rc;
 		}
 	}

 	return rc;
 }

 int32_t cam_actuator_apply_request(struct cam_req_mgr_apply_request *apply)
 {
 	int32_t rc = 0, request_id, del_req_id;
 	struct cam_actuator_ctrl_t *a_ctrl = NULL;

 	if (!apply) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Input Args");
 		return -EINVAL;
 	}

 	a_ctrl = (struct cam_actuator_ctrl_t *)
 		cam_get_device_priv(apply->dev_hdl);
 	if (!a_ctrl) {
 		CAM_ERR(CAM_ACTUATOR, "Device data is NULL");
 		return -EINVAL;
 	}
 	request_id = apply->request_id % MAX_PER_FRAME_ARRAY;

 	trace_cam_apply_req("Actuator", apply);

 	CAM_DBG(CAM_ACTUATOR, "Request Id: %lld", apply->request_id);

 	if ((apply->request_id ==
 		a_ctrl->i2c_data.per_frame[request_id].request_id) &&
 		(a_ctrl->i2c_data.per_frame[request_id].is_settings_valid)
 		== 1) {
 		rc = cam_actuator_apply_settings(a_ctrl,
 			&a_ctrl->i2c_data.per_frame[request_id]);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed in applying the request: %lld\n",
 				apply->request_id);
 			return rc;
 		}
 	}
 	del_req_id = (request_id +
 		MAX_PER_FRAME_ARRAY - MAX_SYSTEM_PIPELINE_DELAY) %
 		MAX_PER_FRAME_ARRAY;

 	if (apply->request_id >
 		a_ctrl->i2c_data.per_frame[del_req_id].request_id) {
 		a_ctrl->i2c_data.per_frame[del_req_id].request_id = 0;
 		rc = delete_request(&a_ctrl->i2c_data.per_frame[del_req_id]);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Fail deleting the req: %d err: %d\n",
 				del_req_id, rc);
 			return rc;
 		}
 	} else {
 		CAM_DBG(CAM_ACTUATOR, "No Valid Req to clean Up");
 	}

 	return rc;
 }

 int32_t cam_actuator_establish_link(
 	struct cam_req_mgr_core_dev_link_setup *link)
 {
 	struct cam_actuator_ctrl_t *a_ctrl = NULL;

 	if (!link) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Args");
 		return -EINVAL;
 	}

 	a_ctrl = (struct cam_actuator_ctrl_t *)
 		cam_get_device_priv(link->dev_hdl);
 	if (!a_ctrl) {
 		CAM_ERR(CAM_ACTUATOR, "Device data is NULL");
 		return -EINVAL;
 	}
 	if (link->link_enable) {
 		a_ctrl->bridge_intf.link_hdl = link->link_hdl;
 		a_ctrl->bridge_intf.crm_cb = link->crm_cb;
 	} else {
 		a_ctrl->bridge_intf.link_hdl = -1;
 		a_ctrl->bridge_intf.crm_cb = NULL;
 	}

 	return 0;
 }

 int32_t cam_actuator_publish_dev_info(struct cam_req_mgr_device_info *info)
 {
 	if (!info) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Args");
 		return -EINVAL;
 	}

 	info->dev_id = CAM_REQ_MGR_DEVICE_ACTUATOR;
 	strlcpy(info->name, CAM_ACTUATOR_NAME, sizeof(info->name));
 	info->p_delay = 0;
 	info->trigger = CAM_TRIGGER_POINT_SOF;

 	return 0;
 }

 int32_t cam_actuator_i2c_pkt_parse(struct cam_actuator_ctrl_t *a_ctrl,
 	void *arg)
 {
 	int32_t rc = 0;
 	uint64_t generic_ptr;
 	struct cam_control *ioctl_ctrl = NULL;
 	struct cam_packet *csl_packet = NULL;
 	struct cam_config_dev_cmd config;
 	struct i2c_data_settings *i2c_data = NULL;
 	struct i2c_settings_array *i2c_reg_settings = NULL;
 	struct cam_cmd_buf_desc *cmd_desc = NULL;
 	size_t len_of_buff = 0;
 	uint32_t *offset = NULL, *cmd_buf;
 	struct cam_req_mgr_add_request add_req;

 	if (!a_ctrl || !arg) {
 		CAM_ERR(CAM_ACTUATOR, "Invalid Args");
 		return -EINVAL;
 	}

 	ioctl_ctrl = (struct cam_control *)arg;
 	if (copy_from_user(&config, (void __user *) ioctl_ctrl->handle,
 		sizeof(config)))
 		return -EFAULT;
 	rc = cam_mem_get_cpu_buf(config.packet_handle,
 		(uint64_t *)&generic_ptr, &len_of_buff);
 	if (rc < 0) {
 		CAM_ERR(CAM_ACTUATOR, "Error in converting command Handle %d",
 			rc);
 		return rc;
 	}

 	if (config.offset > len_of_buff) {
 		CAM_ERR(CAM_ACTUATOR,
 			"offset is out of bounds: offset: %lld len: %zu",
 			config.offset, len_of_buff);
 		return -EINVAL;
 	}

 	csl_packet = (struct cam_packet *)(generic_ptr +
 		config.offset);
 	CAM_DBG(CAM_ACTUATOR, "Pkt opcode: %d", csl_packet->header.op_code);

 	if ((csl_packet->header.op_code & 0xFFFFFF) ==
 			CAM_ACTUATOR_PACKET_OPCODE_INIT) {
 		i2c_data = &(a_ctrl->i2c_data);
 		i2c_reg_settings = &i2c_data->init_settings;

 		offset = (uint32_t *)&csl_packet->payload;
 		offset += (csl_packet->cmd_buf_offset / sizeof(uint32_t));
 		cmd_desc = (struct cam_cmd_buf_desc *)(offset);

 		if (csl_packet->num_cmd_buf != 2) {
 			CAM_ERR(CAM_ACTUATOR, "cmd Buffers in Init : %d",
 				csl_packet->num_cmd_buf);
 			return -EINVAL;
 		}

 		rc = cam_mem_get_cpu_buf(cmd_desc[0].mem_handle,
 			(uint64_t *)&generic_ptr, &len_of_buff);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Failed to get cpu buf");
 			return rc;
 		}
 		cmd_buf = (uint32_t *)generic_ptr;
 		cmd_buf += cmd_desc->offset / sizeof(uint32_t);
 		rc = cam_actuator_slaveInfo_pkt_parser(a_ctrl, cmd_buf);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Failed in parsing the pkt");
 			return rc;
 		}
 		cmd_buf += (sizeof(struct cam_cmd_i2c_info)/sizeof(uint32_t));
 		i2c_data->init_settings.request_id = 0;
 		i2c_reg_settings->is_settings_valid = 1;
 		rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
 			&cmd_desc[1], 1);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
 				rc);
 			return rc;
 		}
 	} else if ((csl_packet->header.op_code & 0xFFFFFF) ==
 		CAM_ACTUATOR_PACKET_AUTO_MOVE_LENS) {
 		a_ctrl->act_apply_state =
 			ACT_APPLY_SETTINGS_NOW;

 		i2c_data = &(a_ctrl->i2c_data);
 		i2c_reg_settings = &i2c_data->init_settings;

 		i2c_data->init_settings.request_id =
 			csl_packet->header.request_id;
 		i2c_reg_settings->is_settings_valid = 1;
 		offset = (uint32_t *)&csl_packet->payload;
 		offset += csl_packet->cmd_buf_offset / sizeof(uint32_t);
 		cmd_desc = (struct cam_cmd_buf_desc *)(offset);
 		rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
 			cmd_desc, 1);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
 				rc);
 			return rc;
 		}
 	} else if ((csl_packet->header.op_code & 0xFFFFFF) ==
 		CAM_ACTUATOR_PACKET_MANUAL_MOVE_LENS) {
 		i2c_data = &(a_ctrl->i2c_data);
 		i2c_reg_settings =
 			&i2c_data->per_frame
 			[csl_packet->header.request_id % MAX_PER_FRAME_ARRAY];

 		i2c_data->init_settings.request_id =
 			csl_packet->header.request_id;
 		i2c_reg_settings->is_settings_valid = 1;
 		offset = (uint32_t *)&csl_packet->payload;
 		offset += csl_packet->cmd_buf_offset / sizeof(uint32_t);
 		cmd_desc = (struct cam_cmd_buf_desc *)(offset);
 		rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
 			cmd_desc, 1);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
 				rc);
 			return rc;
 		}
 	}

 	if ((csl_packet->header.op_code & 0xFFFFFF) !=
 		CAM_ACTUATOR_PACKET_OPCODE_INIT) {
 		add_req.link_hdl = a_ctrl->bridge_intf.link_hdl;
 		add_req.req_id = csl_packet->header.request_id;
 		add_req.dev_hdl = a_ctrl->bridge_intf.device_hdl;
 		if (a_ctrl->bridge_intf.crm_cb &&
 			a_ctrl->bridge_intf.crm_cb->add_req)
 			a_ctrl->bridge_intf.crm_cb->add_req(&add_req);
 		CAM_DBG(CAM_ACTUATOR, "Req Id: %lld added to Bridge",
 			add_req.req_id);
 	}

 	return rc;
 }

 static int32_t cam_actuator_vreg_control(
 	struct cam_actuator_ctrl_t *a_ctrl,
 	int config)
 {
 	int rc = 0, cnt;
 	struct cam_hw_soc_info  *soc_info;

 	soc_info = &a_ctrl->soc_info;
 	cnt = soc_info->num_rgltr;

 	if (!cnt)
 		return 0;

 	if (cnt >= CAM_SOC_MAX_REGULATOR) {
 		CAM_ERR(CAM_ACTUATOR, "Regulators more than supported %d", cnt);
 		return -EINVAL;
 	}

 	if (config)
 		rc = cam_soc_util_enable_platform_resource(soc_info, false, 0,
 			false);
 	else
 		rc = cam_soc_util_disable_platform_resource(soc_info, false,
 			false);

 	return rc;
 }

 static int32_t cam_actuator_power_up(struct cam_actuator_ctrl_t *a_ctrl)
 {
 	int rc = 0;
 	struct cam_hw_soc_info  *soc_info =
 		&a_ctrl->soc_info;
 	struct msm_camera_gpio_num_info *gpio_num_info = NULL;

 	rc = cam_actuator_vreg_control(a_ctrl, 1);
 	if (rc < 0) {
 		CAM_ERR(CAM_ACTUATOR, "Actuator Reg Failed %d", rc);
 		return rc;
 	}

 	gpio_num_info = a_ctrl->gpio_num_info;

 	if (soc_info->gpio_data &&
 		gpio_num_info &&
 		gpio_num_info->valid[SENSOR_VAF] == 1) {
 		rc = cam_soc_util_request_platform_resource(&a_ctrl->soc_info,
 			NULL, NULL);
 		rc = cam_soc_util_enable_platform_resource(&a_ctrl->soc_info,
 			false, 0, false);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Failed in req gpio: %d", rc);
 			return rc;
 		}

 		gpio_set_value_cansleep(
 			gpio_num_info->gpio_num[SENSOR_VAF],
 			1);
 	}

 	/* VREG needs some delay to power up */
 	usleep_range(2000, 2050);

 	return rc;
 }

 static int32_t cam_actuator_power_down(struct cam_actuator_ctrl_t *a_ctrl)
 {
 	int32_t rc = 0;
 	struct cam_hw_soc_info *soc_info =
 		&a_ctrl->soc_info;
 	struct msm_camera_gpio_num_info *gpio_num_info = NULL;

 	rc = cam_actuator_vreg_control(a_ctrl, 0);
 	if (rc < 0) {
 		CAM_ERR(CAM_ACTUATOR, "Failed %d");
 		return rc;
 	}

 	gpio_num_info = a_ctrl->gpio_num_info;

 	if (soc_info->gpio_data &&
 		gpio_num_info &&
 		gpio_num_info->valid[SENSOR_VAF] == 1) {

 		gpio_set_value_cansleep(
 			gpio_num_info->gpio_num[SENSOR_VAF],
 			GPIOF_OUT_INIT_LOW);

 		rc = cam_soc_util_release_platform_resource(&a_ctrl->soc_info);
 		rc |= cam_soc_util_disable_platform_resource(&a_ctrl->soc_info,
 					0, 0);
 		if (rc < 0)
 			CAM_ERR(CAM_ACTUATOR,
 				"Failed to disable platform resources: %d", rc);
 	}

 	return rc;
 }

 int32_t cam_actuator_driver_cmd(struct cam_actuator_ctrl_t *a_ctrl,
 	void *arg)
 {
 	int rc = 0;
 	struct cam_control *cmd = (struct cam_control *)arg;

 	if (!a_ctrl || !cmd) {
 		CAM_ERR(CAM_ACTUATOR, " Invalid Args");
 		return -EINVAL;
 	}

 	pr_debug("Opcode to Actuator: %d", cmd->op_code);

 	mutex_lock(&(a_ctrl->actuator_mutex));
 	switch (cmd->op_code) {
 	case CAM_ACQUIRE_DEV: {
 		struct cam_sensor_acquire_dev actuator_acq_dev;
 		struct cam_create_dev_hdl bridge_params;

 		if (a_ctrl->bridge_intf.device_hdl != -1) {
 			CAM_ERR(CAM_ACTUATOR, "Device is already acquired");
 			rc = -EINVAL;
 			goto release_mutex;
 		}
 		rc = copy_from_user(&actuator_acq_dev,
 			(void __user *) cmd->handle,
 			sizeof(actuator_acq_dev));
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Failed Copying from user\n");
 			goto release_mutex;
 		}

 		bridge_params.session_hdl = actuator_acq_dev.session_handle;
 		bridge_params.ops = &a_ctrl->bridge_intf.ops;
 		bridge_params.v4l2_sub_dev_flag = 0;
 		bridge_params.media_entity_flag = 0;
 		bridge_params.priv = a_ctrl;

 		actuator_acq_dev.device_handle =
 			cam_create_device_hdl(&bridge_params);
 		a_ctrl->bridge_intf.device_hdl = actuator_acq_dev.device_handle;
 		a_ctrl->bridge_intf.session_hdl =
 			actuator_acq_dev.session_handle;

 		CAM_DBG(CAM_ACTUATOR, "Device Handle: %d",
 			actuator_acq_dev.device_handle);
 		if (copy_to_user((void __user *) cmd->handle, &actuator_acq_dev,
 			sizeof(struct cam_sensor_acquire_dev))) {
 			CAM_ERR(CAM_ACTUATOR, "Failed Copy to User");
 			rc = -EFAULT;
 			goto release_mutex;
 		}

 	}
 		break;
 	case CAM_RELEASE_DEV: {
 		if (a_ctrl->bridge_intf.device_hdl == -1) {
 			CAM_ERR(CAM_ACTUATOR, "link hdl: %d device hdl: %d",
 				a_ctrl->bridge_intf.device_hdl,
 				a_ctrl->bridge_intf.link_hdl);
 			rc = -EINVAL;
 			goto release_mutex;
 		}
 		rc = cam_destroy_device_hdl(a_ctrl->bridge_intf.device_hdl);
 		if (rc < 0)
 			CAM_ERR(CAM_ACTUATOR, "destroying the device hdl");
 		a_ctrl->bridge_intf.device_hdl = -1;
 		a_ctrl->bridge_intf.link_hdl = -1;
 		a_ctrl->bridge_intf.session_hdl = -1;
 	}
 		break;
 	case CAM_QUERY_CAP: {
 		struct cam_actuator_query_cap actuator_cap = {0};

 		actuator_cap.slot_info = a_ctrl->id;
 		if (copy_to_user((void __user *) cmd->handle, &actuator_cap,
 			sizeof(struct cam_actuator_query_cap))) {
 			CAM_ERR(CAM_ACTUATOR, "Failed Copy to User");
 			rc = -EFAULT;
 			goto release_mutex;
 		}
 	}
 		break;
 	case CAM_START_DEV: {
 		rc = cam_actuator_power_up(a_ctrl);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, " Actuator Power up failed");
 			goto release_mutex;
 		}
 		rc = camera_io_init(&a_ctrl->io_master_info);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "cci_init failed");
 			cam_actuator_power_down(a_ctrl);
 		}

 		rc = cam_actuator_apply_settings(a_ctrl,
 			&a_ctrl->i2c_data.init_settings);
 		if (rc < 0)
 			CAM_ERR(CAM_ACTUATOR, "Cannot apply Init settings");

 		/* Delete the request even if the apply is failed */
 		rc = delete_request(&a_ctrl->i2c_data.init_settings);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR,
 				"Fail in deleting the Init settings");
 			rc = -EINVAL;
 			goto release_mutex;
 		}
 	}
 		break;
 	case CAM_STOP_DEV: {
 		rc = camera_io_release(&a_ctrl->io_master_info);
 		if (rc < 0)
 			CAM_ERR(CAM_ACTUATOR, "Failed in releasing CCI");
 		rc = cam_actuator_power_down(a_ctrl);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Actuator Power down failed");
 			goto release_mutex;
 		}
 	}
 		break;
 	case CAM_CONFIG_DEV: {
 		a_ctrl->act_apply_state =
 			ACT_APPLY_SETTINGS_LATER;
 		rc = cam_actuator_i2c_pkt_parse(a_ctrl, arg);
 		if (rc < 0) {
 			CAM_ERR(CAM_ACTUATOR, "Failed in actuator Parsing");
 		}

 		if (a_ctrl->act_apply_state ==
 			ACT_APPLY_SETTINGS_NOW) {
 			rc = cam_actuator_apply_settings(a_ctrl,
 				&a_ctrl->i2c_data.init_settings);
 			if (rc < 0)
 				CAM_ERR(CAM_ACTUATOR,
 					"Cannot apply Update settings");

 			/* Delete the request even if the apply is failed */
 			rc = delete_request(&a_ctrl->i2c_data.init_settings);
 			if (rc < 0) {
 				CAM_ERR(CAM_ACTUATOR,
 					"Failed in Deleting the Init Pkt: %d",
 					rc);
 				goto release_mutex;
 			}
 		}
 	}
 		break;
 	case CAM_SD_SHUTDOWN:
 		break;
 	default:
 		CAM_ERR(CAM_ACTUATOR, "Invalid Opcode %d", cmd->op_code);
 	}

 release_mutex:
 	mutex_unlock(&(a_ctrl->actuator_mutex));

 	return rc;
 }
	/* Copyright (c) 2017, The Linux Foundation. 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 and
	* only 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 <cam_sensor_cmn_header.h>
	#include "cam_actuator_core.h"
	#include "cam_sensor_util.h"
	#include "cam_trace.h"

	static int32_t cam_actuator_i2c_modes_util(
	struct camera_io_master *io_master_info,
	struct i2c_settings_list *i2c_list)
	{
	int32_t rc = 0;
	uint32_t i, size;

	if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_RANDOM) {
	rc = camera_io_dev_write(io_master_info,
	&(i2c_list->i2c_settings));
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed to random write I2C settings: %d",
	rc);
	return rc;
	}
	} else if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_SEQ) {
	rc = camera_io_dev_write_continuous(
	io_master_info,
	&(i2c_list->i2c_settings),
	0);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed to seq write I2C settings: %d",
	rc);
	return rc;
	}
	} else if (i2c_list->op_code == CAM_SENSOR_I2C_WRITE_BURST) {
	rc = camera_io_dev_write_continuous(
	io_master_info,
	&(i2c_list->i2c_settings),
	1);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed to burst write I2C settings: %d",
	rc);
	return rc;
	}
	} else if (i2c_list->op_code == CAM_SENSOR_I2C_POLL) {
	size = i2c_list->i2c_settings.size;
	for (i = 0; i < size; i++) {
	rc = camera_io_dev_poll(
	io_master_info,
	i2c_list->i2c_settings.
	reg_setting[i].reg_addr,
	i2c_list->i2c_settings.
	reg_setting[i].reg_data,
	i2c_list->i2c_settings.
	reg_setting[i].data_mask,
	i2c_list->i2c_settings.addr_type,
	i2c_list->i2c_settings.data_type,
	i2c_list->i2c_settings.
	reg_setting[i].delay);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"i2c poll apply setting Fail: %d", rc);
	return rc;
	}
	}
	}

	return rc;
	}

	int32_t cam_actuator_slaveInfo_pkt_parser(struct cam_actuator_ctrl_t *a_ctrl,
	uint32_t *cmd_buf)
	{
	int32_t rc = 0;
	struct cam_cmd_i2c_info *i2c_info;

	if (!a_ctrl \|\| !cmd_buf) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Args");
	return -EINVAL;
	}

	i2c_info = (struct cam_cmd_i2c_info *)cmd_buf;
	if (a_ctrl->io_master_info.master_type == CCI_MASTER) {
	a_ctrl->io_master_info.cci_client->i2c_freq_mode =
	i2c_info->i2c_freq_mode;
	a_ctrl->io_master_info.cci_client->sid =
	i2c_info->slave_addr >> 1;
	CAM_DBG(CAM_ACTUATOR, "Slave addr: 0x%x Freq Mode: %d",
	i2c_info->slave_addr, i2c_info->i2c_freq_mode);
	} else if (a_ctrl->io_master_info.master_type == I2C_MASTER) {
	a_ctrl->io_master_info.client->addr = i2c_info->slave_addr;
	CAM_DBG(CAM_ACTUATOR, "Slave addr: 0x%x", i2c_info->slave_addr);
	} else {
	CAM_ERR(CAM_ACTUATOR, "Invalid Master type: %d",
	a_ctrl->io_master_info.master_type);
	rc = -EINVAL;
	}

	return rc;
	}

	int32_t cam_actuator_apply_settings(struct cam_actuator_ctrl_t *a_ctrl,
	struct i2c_settings_array *i2c_set)
	{
	struct i2c_settings_list *i2c_list;
	int32_t rc = 0;

	if (a_ctrl == NULL \|\| i2c_set == NULL) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Args");
	return -EINVAL;
	}

	if (i2c_set->is_settings_valid != 1) {
	CAM_ERR(CAM_ACTUATOR, " Invalid settings");
	return -EINVAL;
	}

	list_for_each_entry(i2c_list,
	&(i2c_set->list_head), list) {
	rc = cam_actuator_i2c_modes_util(
	&(a_ctrl->io_master_info),
	i2c_list);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed to apply settings: %d",
	rc);
	return rc;
	}
	}

	return rc;
	}

	int32_t cam_actuator_apply_request(struct cam_req_mgr_apply_request *apply)
	{
	int32_t rc = 0, request_id, del_req_id;
	struct cam_actuator_ctrl_t *a_ctrl = NULL;

	if (!apply) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Input Args");
	return -EINVAL;
	}

	a_ctrl = (struct cam_actuator_ctrl_t *)
	cam_get_device_priv(apply->dev_hdl);
	if (!a_ctrl) {
	CAM_ERR(CAM_ACTUATOR, "Device data is NULL");
	return -EINVAL;
	}
	request_id = apply->request_id % MAX_PER_FRAME_ARRAY;

	trace_cam_apply_req("Actuator", apply);

	CAM_DBG(CAM_ACTUATOR, "Request Id: %lld", apply->request_id);

	if ((apply->request_id ==
	a_ctrl->i2c_data.per_frame[request_id].request_id) &&
	(a_ctrl->i2c_data.per_frame[request_id].is_settings_valid)
	== 1) {
	rc = cam_actuator_apply_settings(a_ctrl,
	&a_ctrl->i2c_data.per_frame[request_id]);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed in applying the request: %lld\n",
	apply->request_id);
	return rc;
	}
	}
	del_req_id = (request_id +
	MAX_PER_FRAME_ARRAY - MAX_SYSTEM_PIPELINE_DELAY) %
	MAX_PER_FRAME_ARRAY;

	if (apply->request_id >
	a_ctrl->i2c_data.per_frame[del_req_id].request_id) {
	a_ctrl->i2c_data.per_frame[del_req_id].request_id = 0;
	rc = delete_request(&a_ctrl->i2c_data.per_frame[del_req_id]);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Fail deleting the req: %d err: %d\n",
	del_req_id, rc);
	return rc;
	}
	} else {
	CAM_DBG(CAM_ACTUATOR, "No Valid Req to clean Up");
	}

	return rc;
	}

	int32_t cam_actuator_establish_link(
	struct cam_req_mgr_core_dev_link_setup *link)
	{
	struct cam_actuator_ctrl_t *a_ctrl = NULL;

	if (!link) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Args");
	return -EINVAL;
	}

	a_ctrl = (struct cam_actuator_ctrl_t *)
	cam_get_device_priv(link->dev_hdl);
	if (!a_ctrl) {
	CAM_ERR(CAM_ACTUATOR, "Device data is NULL");
	return -EINVAL;
	}
	if (link->link_enable) {
	a_ctrl->bridge_intf.link_hdl = link->link_hdl;
	a_ctrl->bridge_intf.crm_cb = link->crm_cb;
	} else {
	a_ctrl->bridge_intf.link_hdl = -1;
	a_ctrl->bridge_intf.crm_cb = NULL;
	}

	return 0;
	}

	int32_t cam_actuator_publish_dev_info(struct cam_req_mgr_device_info *info)
	{
	if (!info) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Args");
	return -EINVAL;
	}

	info->dev_id = CAM_REQ_MGR_DEVICE_ACTUATOR;
	strlcpy(info->name, CAM_ACTUATOR_NAME, sizeof(info->name));
	info->p_delay = 0;
	info->trigger = CAM_TRIGGER_POINT_SOF;

	return 0;
	}

	int32_t cam_actuator_i2c_pkt_parse(struct cam_actuator_ctrl_t *a_ctrl,
	void *arg)
	{
	int32_t rc = 0;
	uint64_t generic_ptr;
	struct cam_control *ioctl_ctrl = NULL;
	struct cam_packet *csl_packet = NULL;
	struct cam_config_dev_cmd config;
	struct i2c_data_settings *i2c_data = NULL;
	struct i2c_settings_array *i2c_reg_settings = NULL;
	struct cam_cmd_buf_desc *cmd_desc = NULL;
	size_t len_of_buff = 0;
	uint32_t offset = NULL, cmd_buf;
	struct cam_req_mgr_add_request add_req;

	if (!a_ctrl \|\| !arg) {
	CAM_ERR(CAM_ACTUATOR, "Invalid Args");
	return -EINVAL;
	}

	ioctl_ctrl = (struct cam_control *)arg;
	if (copy_from_user(&config, (void __user *) ioctl_ctrl->handle,
	sizeof(config)))
	return -EFAULT;
	rc = cam_mem_get_cpu_buf(config.packet_handle,
	(uint64_t *)&generic_ptr, &len_of_buff);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Error in converting command Handle %d",
	rc);
	return rc;
	}

	if (config.offset > len_of_buff) {
	CAM_ERR(CAM_ACTUATOR,
	"offset is out of bounds: offset: %lld len: %zu",
	config.offset, len_of_buff);
	return -EINVAL;
	}

	csl_packet = (struct cam_packet *)(generic_ptr +
	config.offset);
	CAM_DBG(CAM_ACTUATOR, "Pkt opcode: %d", csl_packet->header.op_code);

	if ((csl_packet->header.op_code & 0xFFFFFF) ==
	CAM_ACTUATOR_PACKET_OPCODE_INIT) {
	i2c_data = &(a_ctrl->i2c_data);
	i2c_reg_settings = &i2c_data->init_settings;

	offset = (uint32_t *)&csl_packet->payload;
	offset += (csl_packet->cmd_buf_offset / sizeof(uint32_t));
	cmd_desc = (struct cam_cmd_buf_desc *)(offset);

	if (csl_packet->num_cmd_buf != 2) {
	CAM_ERR(CAM_ACTUATOR, "cmd Buffers in Init : %d",
	csl_packet->num_cmd_buf);
	return -EINVAL;
	}

	rc = cam_mem_get_cpu_buf(cmd_desc[0].mem_handle,
	(uint64_t *)&generic_ptr, &len_of_buff);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed to get cpu buf");
	return rc;
	}
	cmd_buf = (uint32_t *)generic_ptr;
	cmd_buf += cmd_desc->offset / sizeof(uint32_t);
	rc = cam_actuator_slaveInfo_pkt_parser(a_ctrl, cmd_buf);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed in parsing the pkt");
	return rc;
	}
	cmd_buf += (sizeof(struct cam_cmd_i2c_info)/sizeof(uint32_t));
	i2c_data->init_settings.request_id = 0;
	i2c_reg_settings->is_settings_valid = 1;
	rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
	&cmd_desc[1], 1);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
	rc);
	return rc;
	}
	} else if ((csl_packet->header.op_code & 0xFFFFFF) ==
	CAM_ACTUATOR_PACKET_AUTO_MOVE_LENS) {
	a_ctrl->act_apply_state =
	ACT_APPLY_SETTINGS_NOW;

	i2c_data = &(a_ctrl->i2c_data);
	i2c_reg_settings = &i2c_data->init_settings;

	i2c_data->init_settings.request_id =
	csl_packet->header.request_id;
	i2c_reg_settings->is_settings_valid = 1;
	offset = (uint32_t *)&csl_packet->payload;
	offset += csl_packet->cmd_buf_offset / sizeof(uint32_t);
	cmd_desc = (struct cam_cmd_buf_desc *)(offset);
	rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
	cmd_desc, 1);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
	rc);
	return rc;
	}
	} else if ((csl_packet->header.op_code & 0xFFFFFF) ==
	CAM_ACTUATOR_PACKET_MANUAL_MOVE_LENS) {
	i2c_data = &(a_ctrl->i2c_data);
	i2c_reg_settings =
	&i2c_data->per_frame
	[csl_packet->header.request_id % MAX_PER_FRAME_ARRAY];

	i2c_data->init_settings.request_id =
	csl_packet->header.request_id;
	i2c_reg_settings->is_settings_valid = 1;
	offset = (uint32_t *)&csl_packet->payload;
	offset += csl_packet->cmd_buf_offset / sizeof(uint32_t);
	cmd_desc = (struct cam_cmd_buf_desc *)(offset);
	rc = cam_sensor_i2c_pkt_parser(i2c_reg_settings,
	cmd_desc, 1);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Actuator pkt parsing failed: %d",
	rc);
	return rc;
	}
	}

	if ((csl_packet->header.op_code & 0xFFFFFF) !=
	CAM_ACTUATOR_PACKET_OPCODE_INIT) {
	add_req.link_hdl = a_ctrl->bridge_intf.link_hdl;
	add_req.req_id = csl_packet->header.request_id;
	add_req.dev_hdl = a_ctrl->bridge_intf.device_hdl;
	if (a_ctrl->bridge_intf.crm_cb &&
	a_ctrl->bridge_intf.crm_cb->add_req)
	a_ctrl->bridge_intf.crm_cb->add_req(&add_req);
	CAM_DBG(CAM_ACTUATOR, "Req Id: %lld added to Bridge",
	add_req.req_id);
	}

	return rc;
	}

	static int32_t cam_actuator_vreg_control(
	struct cam_actuator_ctrl_t *a_ctrl,
	int config)
	{
	int rc = 0, cnt;
	struct cam_hw_soc_info *soc_info;

	soc_info = &a_ctrl->soc_info;
	cnt = soc_info->num_rgltr;

	if (!cnt)
	return 0;

	if (cnt >= CAM_SOC_MAX_REGULATOR) {
	CAM_ERR(CAM_ACTUATOR, "Regulators more than supported %d", cnt);
	return -EINVAL;
	}

	if (config)
	rc = cam_soc_util_enable_platform_resource(soc_info, false, 0,
	false);
	else
	rc = cam_soc_util_disable_platform_resource(soc_info, false,
	false);

	return rc;
	}

	static int32_t cam_actuator_power_up(struct cam_actuator_ctrl_t *a_ctrl)
	{
	int rc = 0;
	struct cam_hw_soc_info *soc_info =
	&a_ctrl->soc_info;
	struct msm_camera_gpio_num_info *gpio_num_info = NULL;

	rc = cam_actuator_vreg_control(a_ctrl, 1);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Actuator Reg Failed %d", rc);
	return rc;
	}

	gpio_num_info = a_ctrl->gpio_num_info;

	if (soc_info->gpio_data &&
	gpio_num_info &&
	gpio_num_info->valid[SENSOR_VAF] == 1) {
	rc = cam_soc_util_request_platform_resource(&a_ctrl->soc_info,
	NULL, NULL);
	rc = cam_soc_util_enable_platform_resource(&a_ctrl->soc_info,
	false, 0, false);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed in req gpio: %d", rc);
	return rc;
	}

	gpio_set_value_cansleep(
	gpio_num_info->gpio_num[SENSOR_VAF],
	1);
	}

	/* VREG needs some delay to power up */
	usleep_range(2000, 2050);

	return rc;
	}

	static int32_t cam_actuator_power_down(struct cam_actuator_ctrl_t *a_ctrl)
	{
	int32_t rc = 0;
	struct cam_hw_soc_info *soc_info =
	&a_ctrl->soc_info;
	struct msm_camera_gpio_num_info *gpio_num_info = NULL;

	rc = cam_actuator_vreg_control(a_ctrl, 0);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed %d");
	return rc;
	}

	gpio_num_info = a_ctrl->gpio_num_info;

	if (soc_info->gpio_data &&
	gpio_num_info &&
	gpio_num_info->valid[SENSOR_VAF] == 1) {

	gpio_set_value_cansleep(
	gpio_num_info->gpio_num[SENSOR_VAF],
	GPIOF_OUT_INIT_LOW);

	rc = cam_soc_util_release_platform_resource(&a_ctrl->soc_info);
	rc \|= cam_soc_util_disable_platform_resource(&a_ctrl->soc_info,
	0, 0);
	if (rc < 0)
	CAM_ERR(CAM_ACTUATOR,
	"Failed to disable platform resources: %d", rc);
	}

	return rc;
	}

	int32_t cam_actuator_driver_cmd(struct cam_actuator_ctrl_t *a_ctrl,
	void *arg)
	{
	int rc = 0;
	struct cam_control cmd = (struct cam_control )arg;

	if (!a_ctrl \|\| !cmd) {
	CAM_ERR(CAM_ACTUATOR, " Invalid Args");
	return -EINVAL;
	}

	pr_debug("Opcode to Actuator: %d", cmd->op_code);

	mutex_lock(&(a_ctrl->actuator_mutex));
	switch (cmd->op_code) {
	case CAM_ACQUIRE_DEV: {
	struct cam_sensor_acquire_dev actuator_acq_dev;
	struct cam_create_dev_hdl bridge_params;

	if (a_ctrl->bridge_intf.device_hdl != -1) {
	CAM_ERR(CAM_ACTUATOR, "Device is already acquired");
	rc = -EINVAL;
	goto release_mutex;
	}
	rc = copy_from_user(&actuator_acq_dev,
	(void __user *) cmd->handle,
	sizeof(actuator_acq_dev));
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed Copying from user\n");
	goto release_mutex;
	}

	bridge_params.session_hdl = actuator_acq_dev.session_handle;
	bridge_params.ops = &a_ctrl->bridge_intf.ops;
	bridge_params.v4l2_sub_dev_flag = 0;
	bridge_params.media_entity_flag = 0;
	bridge_params.priv = a_ctrl;

	actuator_acq_dev.device_handle =
	cam_create_device_hdl(&bridge_params);
	a_ctrl->bridge_intf.device_hdl = actuator_acq_dev.device_handle;
	a_ctrl->bridge_intf.session_hdl =
	actuator_acq_dev.session_handle;

	CAM_DBG(CAM_ACTUATOR, "Device Handle: %d",
	actuator_acq_dev.device_handle);
	if (copy_to_user((void __user *) cmd->handle, &actuator_acq_dev,
	sizeof(struct cam_sensor_acquire_dev))) {
	CAM_ERR(CAM_ACTUATOR, "Failed Copy to User");
	rc = -EFAULT;
	goto release_mutex;
	}

	}
	break;
	case CAM_RELEASE_DEV: {
	if (a_ctrl->bridge_intf.device_hdl == -1) {
	CAM_ERR(CAM_ACTUATOR, "link hdl: %d device hdl: %d",
	a_ctrl->bridge_intf.device_hdl,
	a_ctrl->bridge_intf.link_hdl);
	rc = -EINVAL;
	goto release_mutex;
	}
	rc = cam_destroy_device_hdl(a_ctrl->bridge_intf.device_hdl);
	if (rc < 0)
	CAM_ERR(CAM_ACTUATOR, "destroying the device hdl");
	a_ctrl->bridge_intf.device_hdl = -1;
	a_ctrl->bridge_intf.link_hdl = -1;
	a_ctrl->bridge_intf.session_hdl = -1;
	}
	break;
	case CAM_QUERY_CAP: {
	struct cam_actuator_query_cap actuator_cap = {0};

	actuator_cap.slot_info = a_ctrl->id;
	if (copy_to_user((void __user *) cmd->handle, &actuator_cap,
	sizeof(struct cam_actuator_query_cap))) {
	CAM_ERR(CAM_ACTUATOR, "Failed Copy to User");
	rc = -EFAULT;
	goto release_mutex;
	}
	}
	break;
	case CAM_START_DEV: {
	rc = cam_actuator_power_up(a_ctrl);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, " Actuator Power up failed");
	goto release_mutex;
	}
	rc = camera_io_init(&a_ctrl->io_master_info);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "cci_init failed");
	cam_actuator_power_down(a_ctrl);
	}

	rc = cam_actuator_apply_settings(a_ctrl,
	&a_ctrl->i2c_data.init_settings);
	if (rc < 0)
	CAM_ERR(CAM_ACTUATOR, "Cannot apply Init settings");

	/* Delete the request even if the apply is failed */
	rc = delete_request(&a_ctrl->i2c_data.init_settings);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Fail in deleting the Init settings");
	rc = -EINVAL;
	goto release_mutex;
	}
	}
	break;
	case CAM_STOP_DEV: {
	rc = camera_io_release(&a_ctrl->io_master_info);
	if (rc < 0)
	CAM_ERR(CAM_ACTUATOR, "Failed in releasing CCI");
	rc = cam_actuator_power_down(a_ctrl);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Actuator Power down failed");
	goto release_mutex;
	}
	}
	break;
	case CAM_CONFIG_DEV: {
	a_ctrl->act_apply_state =
	ACT_APPLY_SETTINGS_LATER;
	rc = cam_actuator_i2c_pkt_parse(a_ctrl, arg);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR, "Failed in actuator Parsing");
	}

	if (a_ctrl->act_apply_state ==
	ACT_APPLY_SETTINGS_NOW) {
	rc = cam_actuator_apply_settings(a_ctrl,
	&a_ctrl->i2c_data.init_settings);
	if (rc < 0)
	CAM_ERR(CAM_ACTUATOR,
	"Cannot apply Update settings");

	/* Delete the request even if the apply is failed */
	rc = delete_request(&a_ctrl->i2c_data.init_settings);
	if (rc < 0) {
	CAM_ERR(CAM_ACTUATOR,
	"Failed in Deleting the Init Pkt: %d",
	rc);
	goto release_mutex;
	}
	}
	}
	break;
	case CAM_SD_SHUTDOWN:
	break;
	default:
	CAM_ERR(CAM_ACTUATOR, "Invalid Opcode %d", cmd->op_code);
	}

	release_mutex:
	mutex_unlock(&(a_ctrl->actuator_mutex));

	return rc;
	}