649 lines
15 KiB
C
Executable file
649 lines
15 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/version.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/printk.h>
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#include <linux/types.h>
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#include <linux/kobject.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#include "mt-plat/mtk_thermal_monitor.h"
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#include "mach/mtk_thermal.h"
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#include "mtk_cooler_setting.h"
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#define MAX_NUM_INSTANCE_MTK_COOLER_CAM 3
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static kuid_t uid = KUIDT_INIT(0);
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static kgid_t gid = KGIDT_INIT(1000);
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#define mtk_cooler_cam_dprintk_always(fmt, args...) \
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pr_notice("[Thermal/TC/cam]" fmt, ##args)
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#define mtk_cooler_cam_dprintk(fmt, args...) \
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do { \
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if (cl_cam_klog_on == 1) \
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pr_notice("[Thermal/TC/cam]" fmt, ##args); \
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} while (0)
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#define MAX_LEN (256)
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static int cl_cam_klog_on;
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static struct thermal_cooling_device
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*cl_cam_dev[MAX_NUM_INSTANCE_MTK_COOLER_CAM] = { 0 };
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static unsigned long cl_cam_state[MAX_NUM_INSTANCE_MTK_COOLER_CAM] = { 0 };
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static unsigned int _cl_cam;
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static struct thermal_cooling_device *cl_cam_urgent_dev;
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static unsigned long cl_cam_urgent_state;
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static unsigned int _cl_cam_urgent;
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static unsigned int _cl_cam_status;
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static unsigned int _cl_cam_dual_off;
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#if defined(THERMAL_APU_UNLIMIT)
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static unsigned int _cl_apu_status;
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#endif
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/* < 20C: DualCam off, >= 20C: DualCam on */
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static int dualcam_Tj_jump_threshold = 10000;
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/*single cam = 1, dual cam = 0, default = 0*/
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static int single_cam_flag;
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/*10000=>10'C*/
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static int dualcam_Tj_hysteresis = 10000;
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static int ttj_offset;
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/*
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* The cooler status of exit camera.
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* This is for camera app reference.
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*/
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enum {
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CL_CAM_DEACTIVE = 0,
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CL_CAM_ACTIVE = 1,
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CL_CAM_URGENT = 2
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};
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#if defined(THERMAL_APU_UNLIMIT)
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void cl_set_apu_status(int vv)
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{
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mtk_cooler_cam_dprintk("[Thermal/TC/cam]%s %d\n", __func__,
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_cl_apu_status);
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_cl_apu_status = vv;
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}
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EXPORT_SYMBOL(cl_set_apu_status);
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unsigned int cl_get_apu_status(void)
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{
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//if(_cl_apu_status == 1)
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// mtk_cooler_cam_dprintk_always("%s %d\n", __func__,
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//_cl_apu_status);
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return _cl_apu_status;
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}
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EXPORT_SYMBOL(cl_get_apu_status);
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#endif
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int cl_cam_dualcam_off(void)
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{
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int tj_headroom = 0;
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int curr_tj = mtk_thermal_get_temp(MTK_THERMAL_SENSOR_CPU);
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int curr_ttj = get_cpu_target_tj();
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/* if any error */
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if (curr_tj < 0 || curr_ttj < 0) {
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mtk_cooler_cam_dprintk_always("%s error: %d %d\n", __func__,
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curr_tj, curr_ttj);
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return 1;
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}
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tj_headroom = curr_ttj + ttj_offset - curr_tj;
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mtk_cooler_cam_dprintk(
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"%s ttj = %d, tj %d, tj_headroom %d, single_cam_flag <%d>\n",
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__func__, curr_ttj, curr_tj, tj_headroom, single_cam_flag);
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if ((tj_headroom <= 0) || (tj_headroom < dualcam_Tj_jump_threshold)) {
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single_cam_flag = 1;
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mtk_cooler_cam_dprintk(
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"%s tj_headroom:%d < Tj jump threshold:%d\n",
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__func__, tj_headroom, dualcam_Tj_jump_threshold);
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return 1; /*single cam*/
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}
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if ((single_cam_flag == 1)
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&& (curr_tj < (curr_ttj - dualcam_Tj_jump_threshold
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- dualcam_Tj_hysteresis))) {
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single_cam_flag = 0;
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mtk_cooler_cam_dprintk(
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"%s Tj:%d TTj:%d Tj jump threshold:%d Tj_hys:%d, %d\n",
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__func__, curr_tj, curr_ttj, dualcam_Tj_jump_threshold,
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dualcam_Tj_hysteresis, (curr_ttj -
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dualcam_Tj_jump_threshold - dualcam_Tj_hysteresis));
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return 0;/*dual cam*/
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}
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mtk_cooler_cam_dprintk("Tj:%d TTj:%d Tj jump thd:%d Tj_hys:%d, %d\n",
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curr_tj, curr_ttj, dualcam_Tj_jump_threshold,
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dualcam_Tj_hysteresis, (curr_ttj + ttj_offset -
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dualcam_Tj_jump_threshold - dualcam_Tj_hysteresis));
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return 0;/*dual cam*/
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}
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static void cl_cam_status_update(void)
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{
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if (_cl_cam_urgent)
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_cl_cam_status = CL_CAM_URGENT;
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else if (_cl_cam)
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_cl_cam_status = CL_CAM_ACTIVE;
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else
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_cl_cam_status = CL_CAM_DEACTIVE;
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}
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static ssize_t _cl_cam_write
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(struct file *filp, const char __user *buf, size_t len, loff_t *data)
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{
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int ret = 0;
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char tmp[MAX_LEN] = { 0 };
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len = (len < (MAX_LEN - 1)) ? len : (MAX_LEN - 1);
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/* write data to the buffer */
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if (copy_from_user(tmp, buf, len))
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return -EFAULT;
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ret = kstrtouint(tmp, 10, &_cl_cam);
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if (ret)
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WARN_ON_ONCE(1);
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mtk_cooler_cam_dprintk_always("%s %s = %d\n", __func__, tmp, _cl_cam);
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return len;
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}
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static int _cl_cam_read(struct seq_file *m, void *v)
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{
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seq_printf(m, "%d\n", _cl_cam);
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return 0;
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}
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static int _cl_cam_open(struct inode *inode, struct file *file)
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{
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return single_open(file, _cl_cam_read, PDE_DATA(inode));
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}
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static const struct file_operations _cl_cam_fops = {
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.owner = THIS_MODULE,
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.open = _cl_cam_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.write = _cl_cam_write,
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.release = single_release,
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};
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static int mtk_cl_cam_get_max_state
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(struct thermal_cooling_device *cdev, unsigned long *state)
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{
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*state = 1;
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return 0;
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}
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static int mtk_cl_cam_get_cur_state
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(struct thermal_cooling_device *cdev, unsigned long *state)
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{
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*state = *((unsigned long *)cdev->devdata);
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return 0;
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}
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static int mtk_cl_cam_set_cur_state
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(struct thermal_cooling_device *cdev, unsigned long state)
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{
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/* mtk_cooler_cam_dprintk("%s %s %d\n", __func__, cdev->type, state); */
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*((unsigned long *)cdev->devdata) = state;
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if (state == 1)
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_cl_cam = 1;
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else {
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int i;
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for (i = 0; i < MAX_NUM_INSTANCE_MTK_COOLER_CAM; i++) {
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if (cl_cam_state[i])
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break;
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}
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if (i == MAX_NUM_INSTANCE_MTK_COOLER_CAM)
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_cl_cam = 0;
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}
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cl_cam_status_update();
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return 0;
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}
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#if defined(THERMAL_APU_UNLIMIT)
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static ssize_t _cl_apu_status_write
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(struct file *filp, const char __user *buf, size_t len, loff_t *data)
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{
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int ret = 0;
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char tmp[128] = { 0 };
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len = (len < (128 - 1)) ? len : (128 - 1);
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/* write data to the buffer */
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if (copy_from_user(tmp, buf, len))
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return -EFAULT;
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ret = kstrtouint(tmp, 10, &_cl_apu_status);
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if (ret)
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WARN_ON_ONCE(1);
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mtk_cooler_cam_dprintk_always(
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"%s %s = %d\n", __func__, tmp, _cl_apu_status);
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return len;
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}
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static int _cl_apu_status_read(struct seq_file *m, void *v)
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{
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seq_printf(m, "%d\n", _cl_apu_status);
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if (_cl_apu_status)
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mtk_cooler_cam_dprintk_always(
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"%s: %d\n", __func__, _cl_apu_status);
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return 0;
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}
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static int _cl_apu_status_open(struct inode *inode, struct file *file)
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{
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return single_open(file, _cl_apu_status_read, PDE_DATA(inode));
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}
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static const struct file_operations _cl_apu_status_fops = {
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.owner = THIS_MODULE,
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.open = _cl_apu_status_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.write = _cl_apu_status_write,
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.release = single_release,
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};
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#endif
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/* bind fan callbacks to fan device */
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static struct thermal_cooling_device_ops mtk_cl_cam_ops = {
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.get_max_state = mtk_cl_cam_get_max_state,
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.get_cur_state = mtk_cl_cam_get_cur_state,
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.set_cur_state = mtk_cl_cam_set_cur_state,
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};
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static ssize_t _cl_cam_status_write
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(struct file *filp, const char __user *buf, size_t len, loff_t *data)
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{
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int ret = 0;
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char tmp[128] = { 0 };
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len = (len < (128 - 1)) ? len : (128 - 1);
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/* write data to the buffer */
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if (copy_from_user(tmp, buf, len))
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return -EFAULT;
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ret = kstrtouint(tmp, 10, &_cl_cam_status);
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if (ret)
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WARN_ON_ONCE(1);
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mtk_cooler_cam_dprintk_always(
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"%s %s = %d\n", __func__, tmp, _cl_cam_status);
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return len;
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}
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static int _cl_cam_status_read(struct seq_file *m, void *v)
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{
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seq_printf(m, "%d\n", _cl_cam_status);
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if (_cl_cam_status)
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mtk_cooler_cam_dprintk_always(
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"%s: %d\n", __func__, _cl_cam_status);
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return 0;
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}
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static int _cl_cam_status_open(struct inode *inode, struct file *file)
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{
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return single_open(file, _cl_cam_status_read, PDE_DATA(inode));
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}
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static const struct file_operations _cl_cam_status_fops = {
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.owner = THIS_MODULE,
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.open = _cl_cam_status_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.write = _cl_cam_status_write,
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.release = single_release,
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};
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static ssize_t _cl_cam_dual_off_write
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(struct file *filp, const char __user *buf, size_t len, loff_t *data)
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{
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char tmp[128] = { 0 };
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int klog_on, tj_jump_threshold, tj_hysteresis, tj_offset;
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len = (len < (128 - 1)) ? len : (128 - 1);
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/* write data to the buffer */
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if (copy_from_user(tmp, buf, len))
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return -EFAULT;
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if (data == NULL) {
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mtk_cooler_cam_dprintk_always("%s null data\n", __func__);
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return -EINVAL;
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}
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if (sscanf(tmp, "%d %d %d %d", &klog_on, &tj_jump_threshold,
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&tj_hysteresis, &tj_offset) >= 1) {
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if (klog_on == 0 || klog_on == 1)
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cl_cam_klog_on = klog_on;
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dualcam_Tj_hysteresis = tj_hysteresis;
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dualcam_Tj_jump_threshold = tj_jump_threshold;
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ttj_offset = tj_offset;
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mtk_cooler_cam_dprintk_always("%s : %d %d %d\n",
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__func__, dualcam_Tj_hysteresis,
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dualcam_Tj_jump_threshold, ttj_offset);
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return len;
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}
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return len;
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}
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static int _cl_cam_dual_off_read(struct seq_file *m, void *v)
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{
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_cl_cam_dual_off = cl_cam_dualcam_off();
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seq_printf(m, "%d\n", _cl_cam_dual_off);
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return 0;
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}
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static int _cl_cam_dual_off_open(struct inode *inode, struct file *file)
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{
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return single_open(file, _cl_cam_dual_off_read, PDE_DATA(inode));
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}
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static const struct file_operations _cl_cam_dual_off_fops = {
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.owner = THIS_MODULE,
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.open = _cl_cam_dual_off_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.write = _cl_cam_dual_off_write,
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.release = single_release,
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};
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static ssize_t _cl_cam_dual_off_setting_write
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(struct file *filp, const char __user *buf, size_t len, loff_t *data)
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{
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char tmp[128] = { 0 };
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int klog_on, tj_jump_threshold, tj_hysteresis, tj_offset;
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len = (len < (128 - 1)) ? len : (128 - 1);
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/* write data to the buffer */
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if (copy_from_user(tmp, buf, len))
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return -EFAULT;
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if (data == NULL) {
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mtk_cooler_cam_dprintk_always("%s null data\n", __func__);
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return -EINVAL;
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}
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if (sscanf(tmp, "%d %d %d %d", &klog_on, &tj_jump_threshold,
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&tj_hysteresis, &tj_offset) >= 1) {
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if (klog_on == 0 || klog_on == 1)
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cl_cam_klog_on = klog_on;
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dualcam_Tj_hysteresis = tj_hysteresis;
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dualcam_Tj_jump_threshold = tj_jump_threshold;
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ttj_offset = tj_offset;
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mtk_cooler_cam_dprintk_always("%s : %d %d %d\n",
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__func__, dualcam_Tj_hysteresis,
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dualcam_Tj_jump_threshold, ttj_offset);
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return len;
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}
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return len;
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}
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static int _cl_cam_dual_off_setting_read(struct seq_file *m, void *v)
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{
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_cl_cam_dual_off = cl_cam_dualcam_off();
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seq_printf(m, "%d\n", _cl_cam_dual_off);
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seq_printf(m, "%d\n", dualcam_Tj_hysteresis);
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seq_printf(m, "%d\n", dualcam_Tj_jump_threshold);
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seq_printf(m, "%d\n", ttj_offset);
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return 0;
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}
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static int _cl_cam_dual_off_setting_open(struct inode *inode, struct file *file)
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{
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return single_open(file, _cl_cam_dual_off_setting_read,
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PDE_DATA(inode));
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}
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static const struct file_operations _cl_cam_dual_off_fops_setting = {
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.owner = THIS_MODULE,
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.open = _cl_cam_dual_off_setting_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.write = _cl_cam_dual_off_setting_write,
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.release = single_release,
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};
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static int mtk_cl_cam_urgent_get_max_state
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(struct thermal_cooling_device *cdev, unsigned long *state)
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{
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*state = 1;
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return 0;
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}
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static int mtk_cl_cam_urgent_get_cur_state
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(struct thermal_cooling_device *cdev, unsigned long *state)
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{
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*state = *((unsigned long *)cdev->devdata);
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return 0;
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}
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static int mtk_cl_cam_urgent_set_cur_state
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(struct thermal_cooling_device *cdev, unsigned long state)
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{
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/* mtk_cooler_cam_dprintk("%s %s %d\n", __func__, cdev->type, state); */
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*((unsigned long *)cdev->devdata) = state;
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if (state == 1)
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_cl_cam_urgent = 1;
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else
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_cl_cam_urgent = 0;
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cl_cam_status_update();
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return 0;
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}
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/* bind fan callbacks to fan device */
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static struct thermal_cooling_device_ops mtk_cl_cam_urgent_ops = {
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.get_max_state = mtk_cl_cam_urgent_get_max_state,
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.get_cur_state = mtk_cl_cam_urgent_get_cur_state,
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.set_cur_state = mtk_cl_cam_urgent_set_cur_state,
|
|
};
|
|
|
|
static int mtk_cooler_cam_register_ltf(void)
|
|
{
|
|
int i;
|
|
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
|
|
for (i = MAX_NUM_INSTANCE_MTK_COOLER_CAM; i-- > 0;) {
|
|
char temp[20] = { 0 };
|
|
|
|
sprintf(temp, "mtk-cl-cam%02d", i);
|
|
cl_cam_dev[i] = mtk_thermal_cooling_device_register(temp,
|
|
(void *)&cl_cam_state[i],
|
|
&mtk_cl_cam_ops);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mtk_cooler_cam_unregister_ltf(void)
|
|
{
|
|
int i;
|
|
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
|
|
for (i = MAX_NUM_INSTANCE_MTK_COOLER_CAM; i-- > 0;) {
|
|
if (cl_cam_dev[i]) {
|
|
mtk_thermal_cooling_device_unregister(cl_cam_dev[i]);
|
|
cl_cam_dev[i] = NULL;
|
|
cl_cam_state[i] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int mtk_cooler_cam_urgent_register_ltf(void)
|
|
{
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
|
|
cl_cam_urgent_dev = mtk_thermal_cooling_device_register(
|
|
"mtk-cl-cam-urgent",
|
|
(void *)&cl_cam_urgent_state,
|
|
&mtk_cl_cam_urgent_ops);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mtk_cooler_cam_urgent_unregister_ltf(void)
|
|
{
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
|
|
if (cl_cam_urgent_dev) {
|
|
mtk_thermal_cooling_device_unregister(cl_cam_urgent_dev);
|
|
cl_cam_urgent_dev = NULL;
|
|
cl_cam_urgent_state = 0;
|
|
}
|
|
}
|
|
|
|
static int __init mtk_cooler_cam_init(void)
|
|
{
|
|
int err = 0;
|
|
int i;
|
|
struct proc_dir_entry *entry = NULL;
|
|
struct proc_dir_entry *camsetting_dir = NULL;
|
|
|
|
for (i = MAX_NUM_INSTANCE_MTK_COOLER_CAM; i-- > 0;) {
|
|
cl_cam_dev[i] = NULL;
|
|
cl_cam_state[i] = 0;
|
|
}
|
|
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
{
|
|
|
|
struct proc_dir_entry *entry;
|
|
|
|
#if 0
|
|
entry = create_proc_entry("driver/cl_cam", 0644, NULL);
|
|
if (entry != NULL) {
|
|
entry->read_proc = _cl_cam_read;
|
|
entry->write_proc = _cl_cam_write;
|
|
}
|
|
#endif
|
|
#if defined(THERMAL_APU_UNLIMIT)
|
|
entry = proc_create("driver/cl_apu_status", 0664,
|
|
NULL, &_cl_apu_status_fops);
|
|
if (entry)
|
|
proc_set_user(entry, uid, gid);
|
|
else
|
|
mtk_cooler_cam_dprintk(
|
|
"%s driver/cl_apu_status creation failed\n",
|
|
__func__);
|
|
#endif
|
|
entry = proc_create("driver/cl_cam", 0644, NULL, &_cl_cam_fops);
|
|
|
|
if (!entry)
|
|
mtk_cooler_cam_dprintk(
|
|
"%s driver/cl_cam creation failed\n", __func__);
|
|
|
|
entry = proc_create("driver/cl_cam_status", 0644,
|
|
NULL, &_cl_cam_status_fops);
|
|
if (!entry)
|
|
mtk_cooler_cam_dprintk(
|
|
"%s driver/cl_cam_status creation failed\n", __func__);
|
|
|
|
entry = proc_create("driver/cl_cam_dual_off", 0664, NULL,
|
|
&_cl_cam_dual_off_fops);
|
|
if (!entry)
|
|
mtk_cooler_cam_dprintk(
|
|
"%s driver/cl_cam_dual creation failed\n", __func__);
|
|
}
|
|
camsetting_dir = mtk_thermal_get_proc_drv_therm_dir_entry();
|
|
|
|
if (!camsetting_dir)
|
|
mtk_cooler_cam_dprintk_always(
|
|
"[%s]: mkdir /proc/driver/thermal failed\n", __func__);
|
|
else {
|
|
entry = proc_create("cl_cam_dual_off_setting",
|
|
0664,
|
|
camsetting_dir, &_cl_cam_dual_off_fops_setting);
|
|
if (entry)
|
|
proc_set_user(entry, uid, gid);
|
|
}
|
|
|
|
err = mtk_cooler_cam_register_ltf();
|
|
if (err)
|
|
goto err_unreg;
|
|
|
|
err = mtk_cooler_cam_urgent_register_ltf();
|
|
if (err)
|
|
goto err_unreg;
|
|
|
|
return 0;
|
|
|
|
err_unreg:
|
|
mtk_cooler_cam_unregister_ltf();
|
|
mtk_cooler_cam_urgent_unregister_ltf();
|
|
return err;
|
|
}
|
|
|
|
static void __exit mtk_cooler_cam_exit(void)
|
|
{
|
|
/* mtk_cooler_cam_dprintk("%s\n", __func__); */
|
|
|
|
mtk_cooler_cam_unregister_ltf();
|
|
mtk_cooler_cam_urgent_unregister_ltf();
|
|
}
|
|
module_init(mtk_cooler_cam_init);
|
|
module_exit(mtk_cooler_cam_exit);
|