122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Maxim Dual GMSL Deserializer Remode Device Manage
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*
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* Copyright (C) 2023 Rockchip Electronics Co., Ltd.
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*
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* Author: Cai Wenzhong <cwz@rock-chips.com>
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*
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*/
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#include <linux/module.h>
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#include <linux/of_graph.h>
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#include <media/v4l2-async.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include <media/v4l2-fwnode.h>
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#include "maxim2c_api.h"
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int maxim2c_remote_devices_power(maxim2c_t *maxim2c, u8 link_mask, int on)
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{
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struct device *dev = &maxim2c->client->dev;
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maxim2c_gmsl_link_t *gmsl_link = &maxim2c->gmsl_link;
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struct maxim2c_link_cfg *link_cfg = NULL;
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struct device_node *remote_cam_node = NULL;
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struct i2c_client *remote_cam_client = NULL;
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struct v4l2_subdev *remote_cam_sd = NULL;
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int ret = 0, error = 0, i = 0;
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dev_dbg(dev, "%s: link mask = 0x%02x, on = %d\n", __func__, link_mask, on);
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for (i = 0; i < MAXIM2C_LINK_ID_MAX; i++) {
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if ((link_mask & BIT(i)) == 0) {
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dev_dbg(dev, "link id = %d mask is disabled\n", i);
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continue;
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}
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link_cfg = &gmsl_link->link_cfg[i];
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if (link_cfg->link_enable == 0) {
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dev_info(dev, "link id = %d is disabled\n", i);
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continue;
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}
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remote_cam_node = link_cfg->remote_cam_node;
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if (IS_ERR_OR_NULL(remote_cam_node)) {
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dev_info(dev, "link id = %d remote camera node error\n", i);
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continue;
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}
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remote_cam_client = of_find_i2c_device_by_node(remote_cam_node);
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if (IS_ERR_OR_NULL(remote_cam_client)) {
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dev_info(dev, "link id = %d remote camera client error\n", i);
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continue;
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}
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remote_cam_sd = i2c_get_clientdata(remote_cam_client);
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if (IS_ERR_OR_NULL(remote_cam_sd)) {
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dev_info(dev, "link id = %d remote camera v4l2_subdev error\n", i);
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continue;
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}
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dev_info(dev, "link id = %d remote camera power = %d\n", i, on);
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error = v4l2_subdev_call(remote_cam_sd, core, s_power, on);
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if (error < 0) {
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ret |= error;
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dev_err(dev, "link id = %d remote camera power error = %d\n", i, error);
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}
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}
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return ret;
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}
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EXPORT_SYMBOL(maxim2c_remote_devices_power);
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int maxim2c_remote_devices_s_stream(maxim2c_t *maxim2c, u8 link_mask, int enable)
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{
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struct device *dev = &maxim2c->client->dev;
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maxim2c_gmsl_link_t *gmsl_link = &maxim2c->gmsl_link;
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struct maxim2c_link_cfg *link_cfg = NULL;
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struct device_node *remote_cam_node = NULL;
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struct i2c_client *remote_cam_client = NULL;
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struct v4l2_subdev *remote_cam_sd = NULL;
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int ret = 0, error = 0, i = 0;
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dev_dbg(dev, "%s: link mask = 0x%02x, enable = %d\n", __func__, link_mask, enable);
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for (i = 0; i < MAXIM2C_LINK_ID_MAX; i++) {
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if ((link_mask & BIT(i)) == 0) {
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dev_dbg(dev, "link id = %d mask is disabled\n", i);
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continue;
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}
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link_cfg = &gmsl_link->link_cfg[i];
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if (link_cfg->link_enable == 0) {
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dev_info(dev, "link id = %d is disabled\n", i);
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continue;
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}
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remote_cam_node = link_cfg->remote_cam_node;
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if (IS_ERR_OR_NULL(remote_cam_node)) {
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dev_info(dev, "link id = %d remote camera node error\n", i);
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continue;
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}
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remote_cam_client = of_find_i2c_device_by_node(remote_cam_node);
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if (IS_ERR_OR_NULL(remote_cam_client)) {
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dev_info(dev, "link id = %d remote camera client error\n", i);
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continue;
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}
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remote_cam_sd = i2c_get_clientdata(remote_cam_client);
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if (IS_ERR_OR_NULL(remote_cam_sd)) {
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dev_info(dev, "link id = %d remote camera v4l2_subdev error\n", i);
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continue;
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}
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dev_info(dev, "link id = %d remote camera s_stream = %d\n", i, enable);
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error = v4l2_subdev_call(remote_cam_sd, video, s_stream, enable);
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if (error < 0) {
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ret |= error;
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dev_err(dev, "link id = %d remote camera s_stream error = %d\n", i, error);
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}
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}
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return ret;
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}
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EXPORT_SYMBOL(maxim2c_remote_devices_s_stream);
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