![Tomas Winkler](/assets/img/avatar_default.png)
Reuse common client mechanism for sending flow control hbm message. Add new function mei_amthif_read_start similar to mei_cl_read_start that puts control flow request onto the control write queue and drop mei_amthif_irq_read function Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
754 lines
18 KiB
C
754 lines
18 KiB
C
/*
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*
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* Intel Management Engine Interface (Intel MEI) Linux driver
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* Copyright (c) 2003-2012, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/aio.h>
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#include <linux/ioctl.h>
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#include <linux/cdev.h>
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#include <linux/list.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/uuid.h>
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#include <linux/jiffies.h>
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#include <linux/uaccess.h>
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#include <linux/slab.h>
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#include <linux/mei.h>
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#include "mei_dev.h"
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#include "hbm.h"
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#include "client.h"
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const uuid_le mei_amthif_guid = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d,
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0xac, 0xa8, 0x46, 0xe0,
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0xff, 0x65, 0x81, 0x4c);
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/**
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* mei_amthif_reset_params - initializes mei device iamthif
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*
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* @dev: the device structure
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*/
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void mei_amthif_reset_params(struct mei_device *dev)
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{
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/* reset iamthif parameters. */
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dev->iamthif_current_cb = NULL;
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dev->iamthif_msg_buf_size = 0;
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dev->iamthif_msg_buf_index = 0;
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dev->iamthif_canceled = false;
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dev->iamthif_state = MEI_IAMTHIF_IDLE;
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dev->iamthif_timer = 0;
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dev->iamthif_stall_timer = 0;
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dev->iamthif_open_count = 0;
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}
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/**
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* mei_amthif_host_init - mei initialization amthif client.
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*
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* @dev: the device structure
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*
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* Return: 0 on success, <0 on failure.
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*/
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int mei_amthif_host_init(struct mei_device *dev)
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{
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struct mei_cl *cl = &dev->iamthif_cl;
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struct mei_me_client *me_cl;
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unsigned char *msg_buf;
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int ret;
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dev->iamthif_state = MEI_IAMTHIF_IDLE;
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mei_cl_init(cl, dev);
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me_cl = mei_me_cl_by_uuid(dev, &mei_amthif_guid);
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if (!me_cl) {
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dev_info(dev->dev, "amthif: failed to find the client");
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return -ENOTTY;
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}
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cl->me_client_id = me_cl->client_id;
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cl->cl_uuid = me_cl->props.protocol_name;
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/* Assign iamthif_mtu to the value received from ME */
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dev->iamthif_mtu = me_cl->props.max_msg_length;
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dev_dbg(dev->dev, "IAMTHIF_MTU = %d\n", dev->iamthif_mtu);
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kfree(dev->iamthif_msg_buf);
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dev->iamthif_msg_buf = NULL;
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/* allocate storage for ME message buffer */
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msg_buf = kcalloc(dev->iamthif_mtu,
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sizeof(unsigned char), GFP_KERNEL);
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if (!msg_buf) {
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ret = -ENOMEM;
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goto out;
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}
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dev->iamthif_msg_buf = msg_buf;
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ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID);
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if (ret < 0) {
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dev_err(dev->dev, "amthif: failed cl_link %d\n", ret);
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goto out;
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}
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ret = mei_cl_connect(cl, NULL);
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dev->iamthif_state = MEI_IAMTHIF_IDLE;
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out:
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mei_me_cl_put(me_cl);
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return ret;
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}
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/**
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* mei_amthif_find_read_list_entry - finds a amthilist entry for current file
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*
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* @dev: the device structure
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* @file: pointer to file object
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*
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* Return: returned a list entry on success, NULL on failure.
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*/
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struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,
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struct file *file)
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{
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struct mei_cl_cb *cb;
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list_for_each_entry(cb, &dev->amthif_rd_complete_list.list, list)
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if (cb->file_object == file)
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return cb;
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return NULL;
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}
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/**
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* mei_amthif_read - read data from AMTHIF client
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*
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* @dev: the device structure
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* @file: pointer to file object
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* @ubuf: pointer to user data in user space
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* @length: data length to read
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* @offset: data read offset
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*
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* Locking: called under "dev->device_lock" lock
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*
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* Return:
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* returned data length on success,
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* zero if no data to read,
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* negative on failure.
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*/
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int mei_amthif_read(struct mei_device *dev, struct file *file,
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char __user *ubuf, size_t length, loff_t *offset)
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{
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struct mei_cl *cl = file->private_data;
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struct mei_cl_cb *cb;
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unsigned long timeout;
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int rets;
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int wait_ret;
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/* Only possible if we are in timeout */
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if (!cl) {
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dev_err(dev->dev, "bad file ext.\n");
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return -ETIME;
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}
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dev_dbg(dev->dev, "checking amthif data\n");
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cb = mei_amthif_find_read_list_entry(dev, file);
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/* Check for if we can block or not*/
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if (cb == NULL && file->f_flags & O_NONBLOCK)
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return -EAGAIN;
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dev_dbg(dev->dev, "waiting for amthif data\n");
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while (cb == NULL) {
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/* unlock the Mutex */
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mutex_unlock(&dev->device_lock);
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wait_ret = wait_event_interruptible(dev->iamthif_cl.wait,
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(cb = mei_amthif_find_read_list_entry(dev, file)));
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/* Locking again the Mutex */
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mutex_lock(&dev->device_lock);
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if (wait_ret)
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return -ERESTARTSYS;
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dev_dbg(dev->dev, "woke up from sleep\n");
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}
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if (cb->status) {
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rets = cb->status;
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dev_dbg(dev->dev, "read operation failed %d\n", rets);
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goto free;
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}
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dev_dbg(dev->dev, "Got amthif data\n");
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dev->iamthif_timer = 0;
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timeout = cb->read_time +
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mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
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dev_dbg(dev->dev, "amthif timeout = %lud\n",
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timeout);
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if (time_after(jiffies, timeout)) {
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dev_dbg(dev->dev, "amthif Time out\n");
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/* 15 sec for the message has expired */
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list_del(&cb->list);
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rets = -ETIME;
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goto free;
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}
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/* if the whole message will fit remove it from the list */
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if (cb->buf_idx >= *offset && length >= (cb->buf_idx - *offset))
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list_del(&cb->list);
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else if (cb->buf_idx > 0 && cb->buf_idx <= *offset) {
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/* end of the message has been reached */
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list_del(&cb->list);
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rets = 0;
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goto free;
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}
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/* else means that not full buffer will be read and do not
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* remove message from deletion list
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*/
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dev_dbg(dev->dev, "amthif cb->response_buffer size - %d\n",
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cb->response_buffer.size);
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dev_dbg(dev->dev, "amthif cb->buf_idx - %lu\n", cb->buf_idx);
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/* length is being truncated to PAGE_SIZE, however,
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* the buf_idx may point beyond */
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length = min_t(size_t, length, (cb->buf_idx - *offset));
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if (copy_to_user(ubuf, cb->response_buffer.data + *offset, length)) {
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dev_dbg(dev->dev, "failed to copy data to userland\n");
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rets = -EFAULT;
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} else {
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rets = length;
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if ((*offset + length) < cb->buf_idx) {
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*offset += length;
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goto out;
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}
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}
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free:
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dev_dbg(dev->dev, "free amthif cb memory.\n");
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*offset = 0;
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mei_io_cb_free(cb);
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out:
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return rets;
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}
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/**
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* mei_amthif_read_start - queue message for sending read credential
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*
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* @cl: host client
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* @file: file pointer of message recipient
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*
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* Return: 0 on success, <0 on failure.
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*/
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static int mei_amthif_read_start(struct mei_cl *cl, struct file *file)
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{
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struct mei_device *dev = cl->dev;
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struct mei_cl_cb *cb;
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size_t length = dev->iamthif_mtu;
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int rets;
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cb = mei_io_cb_init(cl, file);
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if (!cb) {
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rets = -ENOMEM;
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goto err;
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}
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rets = mei_io_cb_alloc_resp_buf(cb, length);
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if (rets)
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goto err;
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cb->fop_type = MEI_FOP_READ;
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list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
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dev->iamthif_msg_buf_index = 0;
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dev->iamthif_msg_buf_size = 0;
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dev->iamthif_state = MEI_IAMTHIF_READING;
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dev->iamthif_file_object = cb->file_object;
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dev->iamthif_current_cb = cb;
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return 0;
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err:
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mei_io_cb_free(cb);
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return rets;
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}
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/**
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* mei_amthif_send_cmd - send amthif command to the ME
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*
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* @dev: the device structure
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* @cb: mei call back struct
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*
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* Return: 0 on success, <0 on failure.
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*
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*/
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static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
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{
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struct mei_msg_hdr mei_hdr;
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struct mei_cl *cl;
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int ret;
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if (!dev || !cb)
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return -ENODEV;
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dev_dbg(dev->dev, "write data to amthif client.\n");
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dev->iamthif_state = MEI_IAMTHIF_WRITING;
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dev->iamthif_current_cb = cb;
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dev->iamthif_file_object = cb->file_object;
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dev->iamthif_canceled = false;
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dev->iamthif_msg_buf_size = cb->request_buffer.size;
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memcpy(dev->iamthif_msg_buf, cb->request_buffer.data,
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cb->request_buffer.size);
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cl = &dev->iamthif_cl;
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ret = mei_cl_flow_ctrl_creds(cl);
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if (ret < 0)
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return ret;
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cb->fop_type = MEI_FOP_WRITE;
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if (ret && mei_hbuf_acquire(dev)) {
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ret = 0;
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if (cb->request_buffer.size > mei_hbuf_max_len(dev)) {
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mei_hdr.length = mei_hbuf_max_len(dev);
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mei_hdr.msg_complete = 0;
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} else {
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mei_hdr.length = cb->request_buffer.size;
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mei_hdr.msg_complete = 1;
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}
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mei_hdr.host_addr = cl->host_client_id;
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mei_hdr.me_addr = cl->me_client_id;
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mei_hdr.reserved = 0;
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mei_hdr.internal = 0;
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dev->iamthif_msg_buf_index += mei_hdr.length;
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ret = mei_write_message(dev, &mei_hdr, dev->iamthif_msg_buf);
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if (ret)
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return ret;
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if (mei_hdr.msg_complete) {
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if (mei_cl_flow_ctrl_reduce(cl))
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return -EIO;
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cb->status = mei_amthif_read_start(cl, cb->file_object);
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list_add_tail(&cb->list, &dev->write_waiting_list.list);
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} else {
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dev_dbg(dev->dev, "message does not complete, so add amthif cb to write list.\n");
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list_add_tail(&cb->list, &dev->write_list.list);
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}
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} else {
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list_add_tail(&cb->list, &dev->write_list.list);
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}
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return 0;
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}
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/**
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* mei_amthif_write - write amthif data to amthif client
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*
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* @dev: the device structure
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* @cb: mei call back struct
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*
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* Return: 0 on success, <0 on failure.
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*
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*/
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int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *cb)
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{
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if (!dev || !cb)
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return -ENODEV;
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cb->fop_type = MEI_FOP_WRITE;
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if (!list_empty(&dev->amthif_cmd_list.list) ||
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dev->iamthif_state != MEI_IAMTHIF_IDLE) {
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dev_dbg(dev->dev,
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"amthif state = %d\n", dev->iamthif_state);
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dev_dbg(dev->dev, "AMTHIF: add cb to the wait list\n");
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list_add_tail(&cb->list, &dev->amthif_cmd_list.list);
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return 0;
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}
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return mei_amthif_send_cmd(dev, cb);
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}
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/**
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* mei_amthif_run_next_cmd - send next amt command from queue
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*
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* @dev: the device structure
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*/
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void mei_amthif_run_next_cmd(struct mei_device *dev)
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{
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struct mei_cl_cb *cb;
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int ret;
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if (!dev)
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return;
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dev->iamthif_msg_buf_size = 0;
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dev->iamthif_msg_buf_index = 0;
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dev->iamthif_canceled = false;
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dev->iamthif_state = MEI_IAMTHIF_IDLE;
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dev->iamthif_timer = 0;
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dev->iamthif_file_object = NULL;
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dev_dbg(dev->dev, "complete amthif cmd_list cb.\n");
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cb = list_first_entry_or_null(&dev->amthif_cmd_list.list,
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typeof(*cb), list);
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if (!cb)
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return;
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list_del_init(&cb->list);
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ret = mei_amthif_send_cmd(dev, cb);
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if (ret)
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dev_warn(dev->dev, "amthif write failed status = %d\n", ret);
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}
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unsigned int mei_amthif_poll(struct mei_device *dev,
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struct file *file, poll_table *wait)
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{
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unsigned int mask = 0;
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poll_wait(file, &dev->iamthif_cl.wait, wait);
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mutex_lock(&dev->device_lock);
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if (!mei_cl_is_connected(&dev->iamthif_cl)) {
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mask = POLLERR;
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} else if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE &&
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dev->iamthif_file_object == file) {
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mask |= (POLLIN | POLLRDNORM);
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dev_dbg(dev->dev, "run next amthif cb\n");
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mei_amthif_run_next_cmd(dev);
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}
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mutex_unlock(&dev->device_lock);
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return mask;
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}
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/**
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* mei_amthif_irq_write - write iamthif command in irq thread context.
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*
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* @cl: private data of the file object.
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* @cb: callback block.
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* @cmpl_list: complete list.
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*
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* Return: 0, OK; otherwise, error.
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*/
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int mei_amthif_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
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struct mei_cl_cb *cmpl_list)
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{
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struct mei_device *dev = cl->dev;
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struct mei_msg_hdr mei_hdr;
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size_t len = dev->iamthif_msg_buf_size - dev->iamthif_msg_buf_index;
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u32 msg_slots = mei_data2slots(len);
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int slots;
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int rets;
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rets = mei_cl_flow_ctrl_creds(cl);
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if (rets < 0)
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return rets;
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if (rets == 0) {
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cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
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return 0;
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}
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mei_hdr.host_addr = cl->host_client_id;
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mei_hdr.me_addr = cl->me_client_id;
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mei_hdr.reserved = 0;
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mei_hdr.internal = 0;
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slots = mei_hbuf_empty_slots(dev);
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if (slots >= msg_slots) {
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mei_hdr.length = len;
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mei_hdr.msg_complete = 1;
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/* Split the message only if we can write the whole host buffer */
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} else if (slots == dev->hbuf_depth) {
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msg_slots = slots;
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len = (slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
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mei_hdr.length = len;
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mei_hdr.msg_complete = 0;
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} else {
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/* wait for next time the host buffer is empty */
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return 0;
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}
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|
|
|
dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));
|
|
|
|
rets = mei_write_message(dev, &mei_hdr,
|
|
dev->iamthif_msg_buf + dev->iamthif_msg_buf_index);
|
|
if (rets) {
|
|
dev->iamthif_state = MEI_IAMTHIF_IDLE;
|
|
cl->status = rets;
|
|
list_del(&cb->list);
|
|
return rets;
|
|
}
|
|
|
|
if (mei_cl_flow_ctrl_reduce(cl))
|
|
return -EIO;
|
|
|
|
dev->iamthif_msg_buf_index += mei_hdr.length;
|
|
cl->status = 0;
|
|
|
|
if (mei_hdr.msg_complete) {
|
|
cb->status = mei_amthif_read_start(cl, cb->file_object);
|
|
list_move_tail(&cb->list, &dev->write_waiting_list.list);
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mei_amthif_irq_read_msg - read routine after ISR to
|
|
* handle the read amthif message
|
|
*
|
|
* @cl: mei client
|
|
* @mei_hdr: header of amthif message
|
|
* @complete_list: completed callbacks list
|
|
*
|
|
* Return: Always 0; error message is in cb->status
|
|
*/
|
|
int mei_amthif_irq_read_msg(struct mei_cl *cl,
|
|
struct mei_msg_hdr *mei_hdr,
|
|
struct mei_cl_cb *complete_list)
|
|
{
|
|
struct mei_device *dev;
|
|
struct mei_cl_cb *cb;
|
|
unsigned char *buffer;
|
|
|
|
dev = cl->dev;
|
|
|
|
if (cl->state != MEI_FILE_CONNECTED)
|
|
goto err;
|
|
|
|
if (dev->iamthif_state != MEI_IAMTHIF_READING)
|
|
goto err;
|
|
|
|
list_for_each_entry(cb, &dev->read_list.list, list) {
|
|
if (cl == cb->cl)
|
|
break;
|
|
}
|
|
|
|
if (&cb->list == &dev->read_list.list) {
|
|
dev_err(dev->dev, "no reader found\n");
|
|
goto err;
|
|
}
|
|
|
|
if (dev->iamthif_mtu < dev->iamthif_msg_buf_index + mei_hdr->length) {
|
|
cb->status = -ERANGE;
|
|
goto err;
|
|
}
|
|
|
|
buffer = dev->iamthif_msg_buf + dev->iamthif_msg_buf_index;
|
|
mei_read_slots(dev, buffer, mei_hdr->length);
|
|
|
|
dev->iamthif_msg_buf_index += mei_hdr->length;
|
|
|
|
if (!mei_hdr->msg_complete)
|
|
return 0;
|
|
|
|
dev_dbg(dev->dev, "completed amthif read.\n ");
|
|
|
|
dev->iamthif_current_cb = NULL;
|
|
|
|
dev->iamthif_stall_timer = 0;
|
|
cb->buf_idx = dev->iamthif_msg_buf_index;
|
|
cb->read_time = jiffies;
|
|
|
|
dev_dbg(dev->dev, "complete the amthif read cb.\n ");
|
|
list_move_tail(&cb->list, &complete_list->list);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
mei_read_slots(dev, dev->rd_msg_buf, mei_hdr->length);
|
|
dev_dbg(dev->dev, "discarding message " MEI_HDR_FMT "\n",
|
|
MEI_HDR_PRM(mei_hdr));
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mei_amthif_complete - complete amthif callback.
|
|
*
|
|
* @dev: the device structure.
|
|
* @cb: callback block.
|
|
*/
|
|
void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb)
|
|
{
|
|
|
|
if (cb->fop_type == MEI_FOP_WRITE) {
|
|
if (!cb->status) {
|
|
dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;
|
|
mei_io_cb_free(cb);
|
|
return;
|
|
}
|
|
/*
|
|
* in case of error enqueue the write cb to complete read list
|
|
* so it can be propagated to the reader
|
|
*/
|
|
list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);
|
|
wake_up_interruptible(&dev->iamthif_cl.wait);
|
|
return;
|
|
}
|
|
|
|
if (dev->iamthif_canceled != 1) {
|
|
dev->iamthif_state = MEI_IAMTHIF_READ_COMPLETE;
|
|
dev->iamthif_stall_timer = 0;
|
|
memcpy(cb->response_buffer.data,
|
|
dev->iamthif_msg_buf, dev->iamthif_msg_buf_index);
|
|
list_add_tail(&cb->list, &dev->amthif_rd_complete_list.list);
|
|
dev_dbg(dev->dev, "amthif read completed\n");
|
|
dev->iamthif_timer = jiffies;
|
|
dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",
|
|
dev->iamthif_timer);
|
|
} else {
|
|
mei_amthif_run_next_cmd(dev);
|
|
}
|
|
|
|
dev_dbg(dev->dev, "completing amthif call back.\n");
|
|
wake_up_interruptible(&dev->iamthif_cl.wait);
|
|
}
|
|
|
|
/**
|
|
* mei_clear_list - removes all callbacks associated with file
|
|
* from mei_cb_list
|
|
*
|
|
* @dev: device structure.
|
|
* @file: file structure
|
|
* @mei_cb_list: callbacks list
|
|
*
|
|
* mei_clear_list is called to clear resources associated with file
|
|
* when application calls close function or Ctrl-C was pressed
|
|
*
|
|
* Return: true if callback removed from the list, false otherwise
|
|
*/
|
|
static bool mei_clear_list(struct mei_device *dev,
|
|
const struct file *file, struct list_head *mei_cb_list)
|
|
{
|
|
struct mei_cl_cb *cb_pos = NULL;
|
|
struct mei_cl_cb *cb_next = NULL;
|
|
bool removed = false;
|
|
|
|
/* list all list member */
|
|
list_for_each_entry_safe(cb_pos, cb_next, mei_cb_list, list) {
|
|
/* check if list member associated with a file */
|
|
if (file == cb_pos->file_object) {
|
|
/* remove member from the list */
|
|
list_del(&cb_pos->list);
|
|
/* check if cb equal to current iamthif cb */
|
|
if (dev->iamthif_current_cb == cb_pos) {
|
|
dev->iamthif_current_cb = NULL;
|
|
/* send flow control to iamthif client */
|
|
mei_hbm_cl_flow_control_req(dev,
|
|
&dev->iamthif_cl);
|
|
}
|
|
/* free all allocated buffers */
|
|
mei_io_cb_free(cb_pos);
|
|
cb_pos = NULL;
|
|
removed = true;
|
|
}
|
|
}
|
|
return removed;
|
|
}
|
|
|
|
/**
|
|
* mei_clear_lists - removes all callbacks associated with file
|
|
*
|
|
* @dev: device structure
|
|
* @file: file structure
|
|
*
|
|
* mei_clear_lists is called to clear resources associated with file
|
|
* when application calls close function or Ctrl-C was pressed
|
|
*
|
|
* Return: true if callback removed from the list, false otherwise
|
|
*/
|
|
static bool mei_clear_lists(struct mei_device *dev, struct file *file)
|
|
{
|
|
bool removed = false;
|
|
|
|
/* remove callbacks associated with a file */
|
|
mei_clear_list(dev, file, &dev->amthif_cmd_list.list);
|
|
if (mei_clear_list(dev, file, &dev->amthif_rd_complete_list.list))
|
|
removed = true;
|
|
|
|
mei_clear_list(dev, file, &dev->ctrl_rd_list.list);
|
|
|
|
if (mei_clear_list(dev, file, &dev->ctrl_wr_list.list))
|
|
removed = true;
|
|
|
|
if (mei_clear_list(dev, file, &dev->write_waiting_list.list))
|
|
removed = true;
|
|
|
|
if (mei_clear_list(dev, file, &dev->write_list.list))
|
|
removed = true;
|
|
|
|
/* check if iamthif_current_cb not NULL */
|
|
if (dev->iamthif_current_cb && !removed) {
|
|
/* check file and iamthif current cb association */
|
|
if (dev->iamthif_current_cb->file_object == file) {
|
|
/* remove cb */
|
|
mei_io_cb_free(dev->iamthif_current_cb);
|
|
dev->iamthif_current_cb = NULL;
|
|
removed = true;
|
|
}
|
|
}
|
|
return removed;
|
|
}
|
|
|
|
/**
|
|
* mei_amthif_release - the release function
|
|
*
|
|
* @dev: device structure
|
|
* @file: pointer to file structure
|
|
*
|
|
* Return: 0 on success, <0 on error
|
|
*/
|
|
int mei_amthif_release(struct mei_device *dev, struct file *file)
|
|
{
|
|
if (dev->iamthif_open_count > 0)
|
|
dev->iamthif_open_count--;
|
|
|
|
if (dev->iamthif_file_object == file &&
|
|
dev->iamthif_state != MEI_IAMTHIF_IDLE) {
|
|
|
|
dev_dbg(dev->dev, "amthif canceled iamthif state %d\n",
|
|
dev->iamthif_state);
|
|
dev->iamthif_canceled = true;
|
|
if (dev->iamthif_state == MEI_IAMTHIF_READ_COMPLETE) {
|
|
dev_dbg(dev->dev, "run next amthif iamthif cb\n");
|
|
mei_amthif_run_next_cmd(dev);
|
|
}
|
|
}
|
|
|
|
if (mei_clear_lists(dev, file))
|
|
dev->iamthif_state = MEI_IAMTHIF_IDLE;
|
|
|
|
return 0;
|
|
}
|