8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/delay.h>
|
|
|
|
/* load/run-time control from sysfs writer */
|
|
static bool block_transition;
|
|
module_param(block_transition, bool, 0644);
|
|
MODULE_PARM_DESC(block_transition, "block_transition (default=false)");
|
|
|
|
static void busymod_work_func(struct work_struct *work);
|
|
static DECLARE_WORK(work, busymod_work_func);
|
|
static DECLARE_COMPLETION(busymod_work_started);
|
|
|
|
static void busymod_work_func(struct work_struct *work)
|
|
{
|
|
pr_info("%s enter\n", __func__);
|
|
complete(&busymod_work_started);
|
|
|
|
while (READ_ONCE(block_transition)) {
|
|
/*
|
|
* Busy-wait until the sysfs writer has acknowledged a
|
|
* blocked transition and clears the flag.
|
|
*/
|
|
msleep(20);
|
|
}
|
|
|
|
pr_info("%s exit\n", __func__);
|
|
}
|
|
|
|
static int test_klp_callbacks_busy_init(void)
|
|
{
|
|
pr_info("%s\n", __func__);
|
|
schedule_work(&work);
|
|
|
|
/*
|
|
* To synchronize kernel messages, hold the init function from
|
|
* exiting until the work function's entry message has printed.
|
|
*/
|
|
wait_for_completion(&busymod_work_started);
|
|
|
|
if (!block_transition) {
|
|
/*
|
|
* Serialize output: print all messages from the work
|
|
* function before returning from init().
|
|
*/
|
|
flush_work(&work);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void test_klp_callbacks_busy_exit(void)
|
|
{
|
|
WRITE_ONCE(block_transition, false);
|
|
flush_work(&work);
|
|
pr_info("%s\n", __func__);
|
|
}
|
|
|
|
module_init(test_klp_callbacks_busy_init);
|
|
module_exit(test_klp_callbacks_busy_exit);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
|
|
MODULE_DESCRIPTION("Livepatch test: busy target module");
|