![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* drivers/media/platform/samsung/mfc5/s5p_mfc_intr.c
|
|
*
|
|
* C file for Samsung MFC (Multi Function Codec - FIMV) driver
|
|
* This file contains functions used to wait for command completion.
|
|
*
|
|
* Kamil Debski, Copyright (C) 2011 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com/
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/io.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/wait.h>
|
|
#include "s5p_mfc_common.h"
|
|
#include "s5p_mfc_debug.h"
|
|
#include "s5p_mfc_intr.h"
|
|
|
|
int s5p_mfc_wait_for_done_dev(struct s5p_mfc_dev *dev, int command)
|
|
{
|
|
int ret;
|
|
|
|
ret = wait_event_interruptible_timeout(dev->queue,
|
|
(dev->int_cond && (dev->int_type == command
|
|
|| dev->int_type == S5P_MFC_R2H_CMD_ERR_RET)),
|
|
msecs_to_jiffies(MFC_INT_TIMEOUT));
|
|
if (ret == 0) {
|
|
mfc_err("Interrupt (dev->int_type:%d, command:%d) timed out\n",
|
|
dev->int_type, command);
|
|
return 1;
|
|
} else if (ret == -ERESTARTSYS) {
|
|
mfc_err("Interrupted by a signal\n");
|
|
return 1;
|
|
}
|
|
mfc_debug(1, "Finished waiting (dev->int_type:%d, command: %d)\n",
|
|
dev->int_type, command);
|
|
if (dev->int_type == S5P_MFC_R2H_CMD_ERR_RET)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
void s5p_mfc_clean_dev_int_flags(struct s5p_mfc_dev *dev)
|
|
{
|
|
dev->int_cond = 0;
|
|
dev->int_type = 0;
|
|
dev->int_err = 0;
|
|
}
|
|
|
|
int s5p_mfc_wait_for_done_ctx(struct s5p_mfc_ctx *ctx,
|
|
int command, int interrupt)
|
|
{
|
|
int ret;
|
|
|
|
if (interrupt) {
|
|
ret = wait_event_interruptible_timeout(ctx->queue,
|
|
(ctx->int_cond && (ctx->int_type == command
|
|
|| ctx->int_type == S5P_MFC_R2H_CMD_ERR_RET)),
|
|
msecs_to_jiffies(MFC_INT_TIMEOUT));
|
|
} else {
|
|
ret = wait_event_timeout(ctx->queue,
|
|
(ctx->int_cond && (ctx->int_type == command
|
|
|| ctx->int_type == S5P_MFC_R2H_CMD_ERR_RET)),
|
|
msecs_to_jiffies(MFC_INT_TIMEOUT));
|
|
}
|
|
if (ret == 0) {
|
|
mfc_err("Interrupt (ctx->int_type:%d, command:%d) timed out\n",
|
|
ctx->int_type, command);
|
|
return 1;
|
|
} else if (ret == -ERESTARTSYS) {
|
|
mfc_err("Interrupted by a signal\n");
|
|
return 1;
|
|
}
|
|
mfc_debug(1, "Finished waiting (ctx->int_type:%d, command: %d)\n",
|
|
ctx->int_type, command);
|
|
if (ctx->int_type == S5P_MFC_R2H_CMD_ERR_RET)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
void s5p_mfc_clean_ctx_int_flags(struct s5p_mfc_ctx *ctx)
|
|
{
|
|
ctx->int_cond = 0;
|
|
ctx->int_type = 0;
|
|
ctx->int_err = 0;
|
|
}
|
|
|