threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
146 lines
3.0 KiB
C
146 lines
3.0 KiB
C
/*
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* Copyright (C) 2016 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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*/
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#define pr_fmt(fmt) "[ALS/AAL]" fmt
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/miscdevice.h>
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#include <linux/types.h>
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#include <linux/uaccess.h>
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#include "inc/aal_control.h"
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#include "inc/alsps.h"
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#include <sensors_io.h>
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int aal_use /* = 0*/;
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static int AAL_open(struct inode *inode, struct file *file)
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{
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return nonseekable_open(inode, file);
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}
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static int AAL_release(struct inode *inode, struct file *file)
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{
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file->private_data = NULL;
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return 0;
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}
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static long AAL_unlocked_ioctl(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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long err = 0;
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void __user *ptr = (void __user *)arg;
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int dat;
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uint32_t enable;
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switch (cmd) {
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case AAL_SET_ALS_MODE:
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if (copy_from_user(&enable, ptr, sizeof(enable))) {
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err = -EFAULT;
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goto err_out;
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}
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if (enable)
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aal_use = 1;
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else
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aal_use = 0;
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err = alsps_aal_enable(enable);
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if (err)
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pr_err(
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"als driver don't support new arch, goto execute old arch: %ld\n",
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err);
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break;
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case AAL_GET_ALS_MODE:
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pr_debug("AAL_GET_ALS_MODE do nothing\n");
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break;
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case AAL_GET_ALS_DATA:
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dat = alsps_aal_get_data();
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/* pr_debug("Get als dat :%d\n", dat); */
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if (copy_to_user(ptr, &dat, sizeof(dat))) {
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err = -EFAULT;
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goto err_out;
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}
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break;
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default:
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pr_err("%s not supported = 0x%04x", __func__, cmd);
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err = -ENOIOCTLCMD;
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break;
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}
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err_out:
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return err;
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}
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#ifdef CONFIG_COMPAT
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static long AAL_compact_ioctl(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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void __user *data32;
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data32 = compat_ptr(arg);
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return AAL_unlocked_ioctl(file, cmd, (unsigned long)data32);
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}
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#endif
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static const struct file_operations AAL_fops = {
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.owner = THIS_MODULE,
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.open = AAL_open,
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.release = AAL_release,
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.unlocked_ioctl = AAL_unlocked_ioctl,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = AAL_compact_ioctl,
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#endif
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};
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static struct miscdevice AAL_device = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "aal_als",
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.fops = &AAL_fops,
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};
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/*----------------------------------------------------------------------------*/
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static int __init AAL_init(void)
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{
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int err;
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err = misc_register(&AAL_device);
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if (err)
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pr_err("AAL_device misc_register failed: %d\n", err);
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pr_debug("OK!\n");
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return 0;
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}
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/*----------------------------------------------------------------------------*/
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static void __exit AAL_exit(void)
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{
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/*int err;*/
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/*err = */ misc_deregister(&AAL_device);
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#if 0
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if (err)
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pr_err("AAL_device misc_deregister fail: %d\n", err);
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#endif
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}
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late_initcall(AAL_init);
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MODULE_AUTHOR("Mediatek");
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MODULE_DESCRIPTION("AAL driver");
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MODULE_LICENSE("GPL");
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