mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 16:18:51 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
649
drivers/misc/mei/interrupt.c
Normal file
649
drivers/misc/mei/interrupt.c
Normal file
|
|
@ -0,0 +1,649 @@
|
|||
/*
|
||||
*
|
||||
* Intel Management Engine Interface (Intel MEI) Linux driver
|
||||
* Copyright (c) 2003-2012, Intel Corporation.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
#include <linux/export.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include <linux/mei.h>
|
||||
|
||||
#include "mei_dev.h"
|
||||
#include "hbm.h"
|
||||
#include "client.h"
|
||||
|
||||
|
||||
/**
|
||||
* mei_irq_compl_handler - dispatch complete handlers
|
||||
* for the completed callbacks
|
||||
*
|
||||
* @dev: mei device
|
||||
* @compl_list: list of completed cbs
|
||||
*/
|
||||
void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list)
|
||||
{
|
||||
struct mei_cl_cb *cb, *next;
|
||||
struct mei_cl *cl;
|
||||
|
||||
list_for_each_entry_safe(cb, next, &compl_list->list, list) {
|
||||
cl = cb->cl;
|
||||
list_del(&cb->list);
|
||||
if (!cl)
|
||||
continue;
|
||||
|
||||
dev_dbg(dev->dev, "completing call back.\n");
|
||||
if (cl == &dev->iamthif_cl)
|
||||
mei_amthif_complete(dev, cb);
|
||||
else
|
||||
mei_cl_complete(cl, cb);
|
||||
}
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(mei_irq_compl_handler);
|
||||
|
||||
/**
|
||||
* mei_cl_hbm_equal - check if hbm is addressed to the client
|
||||
*
|
||||
* @cl: host client
|
||||
* @mei_hdr: header of mei client message
|
||||
*
|
||||
* Return: true if matches, false otherwise
|
||||
*/
|
||||
static inline int mei_cl_hbm_equal(struct mei_cl *cl,
|
||||
struct mei_msg_hdr *mei_hdr)
|
||||
{
|
||||
return cl->host_client_id == mei_hdr->host_addr &&
|
||||
cl->me_client_id == mei_hdr->me_addr;
|
||||
}
|
||||
/**
|
||||
* mei_cl_is_reading - checks if the client
|
||||
* is the one to read this message
|
||||
*
|
||||
* @cl: mei client
|
||||
* @mei_hdr: header of mei message
|
||||
*
|
||||
* Return: true on match and false otherwise
|
||||
*/
|
||||
static bool mei_cl_is_reading(struct mei_cl *cl, struct mei_msg_hdr *mei_hdr)
|
||||
{
|
||||
return mei_cl_hbm_equal(cl, mei_hdr) &&
|
||||
cl->state == MEI_FILE_CONNECTED &&
|
||||
cl->reading_state != MEI_READ_COMPLETE;
|
||||
}
|
||||
|
||||
/**
|
||||
* mei_cl_irq_read_msg - process client message
|
||||
*
|
||||
* @dev: the device structure
|
||||
* @mei_hdr: header of mei client message
|
||||
* @complete_list: An instance of our list structure
|
||||
*
|
||||
* Return: 0 on success, <0 on failure.
|
||||
*/
|
||||
static int mei_cl_irq_read_msg(struct mei_device *dev,
|
||||
struct mei_msg_hdr *mei_hdr,
|
||||
struct mei_cl_cb *complete_list)
|
||||
{
|
||||
struct mei_cl *cl;
|
||||
struct mei_cl_cb *cb, *next;
|
||||
unsigned char *buffer = NULL;
|
||||
|
||||
list_for_each_entry_safe(cb, next, &dev->read_list.list, list) {
|
||||
cl = cb->cl;
|
||||
if (!cl || !mei_cl_is_reading(cl, mei_hdr))
|
||||
continue;
|
||||
|
||||
cl->reading_state = MEI_READING;
|
||||
|
||||
if (cb->response_buffer.size == 0 ||
|
||||
cb->response_buffer.data == NULL) {
|
||||
cl_err(dev, cl, "response buffer is not allocated.\n");
|
||||
list_del(&cb->list);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (cb->response_buffer.size < mei_hdr->length + cb->buf_idx) {
|
||||
cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n",
|
||||
cb->response_buffer.size,
|
||||
mei_hdr->length, cb->buf_idx);
|
||||
buffer = krealloc(cb->response_buffer.data,
|
||||
mei_hdr->length + cb->buf_idx,
|
||||
GFP_KERNEL);
|
||||
|
||||
if (!buffer) {
|
||||
list_del(&cb->list);
|
||||
return -ENOMEM;
|
||||
}
|
||||
cb->response_buffer.data = buffer;
|
||||
cb->response_buffer.size =
|
||||
mei_hdr->length + cb->buf_idx;
|
||||
}
|
||||
|
||||
buffer = cb->response_buffer.data + cb->buf_idx;
|
||||
mei_read_slots(dev, buffer, mei_hdr->length);
|
||||
|
||||
cb->buf_idx += mei_hdr->length;
|
||||
if (mei_hdr->msg_complete) {
|
||||
cl->status = 0;
|
||||
list_del(&cb->list);
|
||||
cl_dbg(dev, cl, "completed read length = %lu\n",
|
||||
cb->buf_idx);
|
||||
list_add_tail(&cb->list, &complete_list->list);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
dev_dbg(dev->dev, "message read\n");
|
||||
if (!buffer) {
|
||||
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_cl_irq_disconnect_rsp - send disconnection response message
|
||||
*
|
||||
* @cl: client
|
||||
* @cb: callback block.
|
||||
* @cmpl_list: complete list.
|
||||
*
|
||||
* Return: 0, OK; otherwise, error.
|
||||
*/
|
||||
static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb,
|
||||
struct mei_cl_cb *cmpl_list)
|
||||
{
|
||||
struct mei_device *dev = cl->dev;
|
||||
u32 msg_slots;
|
||||
int slots;
|
||||
int ret;
|
||||
|
||||
slots = mei_hbuf_empty_slots(dev);
|
||||
msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_response));
|
||||
|
||||
if (slots < msg_slots)
|
||||
return -EMSGSIZE;
|
||||
|
||||
ret = mei_hbm_cl_disconnect_rsp(dev, cl);
|
||||
|
||||
cl->state = MEI_FILE_DISCONNECTED;
|
||||
cl->status = 0;
|
||||
list_del(&cb->list);
|
||||
mei_io_cb_free(cb);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* mei_cl_irq_disconnect - processes close related operation from
|
||||
* interrupt thread context - send disconnect request
|
||||
*
|
||||
* @cl: client
|
||||
* @cb: callback block.
|
||||
* @cmpl_list: complete list.
|
||||
*
|
||||
* Return: 0, OK; otherwise, error.
|
||||
*/
|
||||
static int mei_cl_irq_disconnect(struct mei_cl *cl, struct mei_cl_cb *cb,
|
||||
struct mei_cl_cb *cmpl_list)
|
||||
{
|
||||
struct mei_device *dev = cl->dev;
|
||||
u32 msg_slots;
|
||||
int slots;
|
||||
|
||||
msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_request));
|
||||
slots = mei_hbuf_empty_slots(dev);
|
||||
|
||||
if (slots < msg_slots)
|
||||
return -EMSGSIZE;
|
||||
|
||||
if (mei_hbm_cl_disconnect_req(dev, cl)) {
|
||||
cl->status = 0;
|
||||
cb->buf_idx = 0;
|
||||
list_move_tail(&cb->list, &cmpl_list->list);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
cl->state = MEI_FILE_DISCONNECTING;
|
||||
cl->status = 0;
|
||||
cb->buf_idx = 0;
|
||||
list_move_tail(&cb->list, &dev->ctrl_rd_list.list);
|
||||
cl->timer_count = MEI_CONNECT_TIMEOUT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* mei_cl_irq_read - processes client read related operation from the
|
||||
* interrupt thread context - request for flow control credits
|
||||
*
|
||||
* @cl: client
|
||||
* @cb: callback block.
|
||||
* @cmpl_list: complete list.
|
||||
*
|
||||
* Return: 0, OK; otherwise, error.
|
||||
*/
|
||||
static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
|
||||
struct mei_cl_cb *cmpl_list)
|
||||
{
|
||||
struct mei_device *dev = cl->dev;
|
||||
u32 msg_slots;
|
||||
int slots;
|
||||
int ret;
|
||||
|
||||
msg_slots = mei_data2slots(sizeof(struct hbm_flow_control));
|
||||
slots = mei_hbuf_empty_slots(dev);
|
||||
|
||||
if (slots < msg_slots)
|
||||
return -EMSGSIZE;
|
||||
|
||||
ret = mei_hbm_cl_flow_control_req(dev, cl);
|
||||
if (ret) {
|
||||
cl->status = ret;
|
||||
cb->buf_idx = 0;
|
||||
list_move_tail(&cb->list, &cmpl_list->list);
|
||||
return ret;
|
||||
}
|
||||
|
||||
list_move_tail(&cb->list, &dev->read_list.list);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* mei_cl_irq_connect - send connect request in irq_thread context
|
||||
*
|
||||
* @cl: client
|
||||
* @cb: callback block.
|
||||
* @cmpl_list: complete list.
|
||||
*
|
||||
* Return: 0, OK; otherwise, error.
|
||||
*/
|
||||
static int mei_cl_irq_connect(struct mei_cl *cl, struct mei_cl_cb *cb,
|
||||
struct mei_cl_cb *cmpl_list)
|
||||
{
|
||||
struct mei_device *dev = cl->dev;
|
||||
u32 msg_slots;
|
||||
int slots;
|
||||
int ret;
|
||||
|
||||
msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_request));
|
||||
slots = mei_hbuf_empty_slots(dev);
|
||||
|
||||
if (mei_cl_is_other_connecting(cl))
|
||||
return 0;
|
||||
|
||||
if (slots < msg_slots)
|
||||
return -EMSGSIZE;
|
||||
|
||||
cl->state = MEI_FILE_CONNECTING;
|
||||
|
||||
ret = mei_hbm_cl_connect_req(dev, cl);
|
||||
if (ret) {
|
||||
cl->status = ret;
|
||||
cb->buf_idx = 0;
|
||||
list_del(&cb->list);
|
||||
return ret;
|
||||
}
|
||||
|
||||
list_move_tail(&cb->list, &dev->ctrl_rd_list.list);
|
||||
cl->timer_count = MEI_CONNECT_TIMEOUT;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* mei_irq_read_handler - bottom half read routine after ISR to
|
||||
* handle the read processing.
|
||||
*
|
||||
* @dev: the device structure
|
||||
* @cmpl_list: An instance of our list structure
|
||||
* @slots: slots to read.
|
||||
*
|
||||
* Return: 0 on success, <0 on failure.
|
||||
*/
|
||||
int mei_irq_read_handler(struct mei_device *dev,
|
||||
struct mei_cl_cb *cmpl_list, s32 *slots)
|
||||
{
|
||||
struct mei_msg_hdr *mei_hdr;
|
||||
struct mei_cl *cl;
|
||||
int ret;
|
||||
|
||||
if (!dev->rd_msg_hdr) {
|
||||
dev->rd_msg_hdr = mei_read_hdr(dev);
|
||||
(*slots)--;
|
||||
dev_dbg(dev->dev, "slots =%08x.\n", *slots);
|
||||
}
|
||||
mei_hdr = (struct mei_msg_hdr *) &dev->rd_msg_hdr;
|
||||
dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));
|
||||
|
||||
if (mei_hdr->reserved || !dev->rd_msg_hdr) {
|
||||
dev_err(dev->dev, "corrupted message header 0x%08X\n",
|
||||
dev->rd_msg_hdr);
|
||||
ret = -EBADMSG;
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (mei_slots2data(*slots) < mei_hdr->length) {
|
||||
dev_err(dev->dev, "less data available than length=%08x.\n",
|
||||
*slots);
|
||||
/* we can't read the message */
|
||||
ret = -ENODATA;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* HBM message */
|
||||
if (mei_hdr->host_addr == 0 && mei_hdr->me_addr == 0) {
|
||||
ret = mei_hbm_dispatch(dev, mei_hdr);
|
||||
if (ret) {
|
||||
dev_dbg(dev->dev, "mei_hbm_dispatch failed ret = %d\n",
|
||||
ret);
|
||||
goto end;
|
||||
}
|
||||
goto reset_slots;
|
||||
}
|
||||
|
||||
/* find recipient cl */
|
||||
list_for_each_entry(cl, &dev->file_list, link) {
|
||||
if (mei_cl_hbm_equal(cl, mei_hdr)) {
|
||||
cl_dbg(dev, cl, "got a message\n");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* if no recipient cl was found we assume corrupted header */
|
||||
if (&cl->link == &dev->file_list) {
|
||||
dev_err(dev->dev, "no destination client found 0x%08X\n",
|
||||
dev->rd_msg_hdr);
|
||||
ret = -EBADMSG;
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (mei_hdr->host_addr == dev->iamthif_cl.host_client_id &&
|
||||
MEI_FILE_CONNECTED == dev->iamthif_cl.state &&
|
||||
dev->iamthif_state == MEI_IAMTHIF_READING) {
|
||||
|
||||
ret = mei_amthif_irq_read_msg(dev, mei_hdr, cmpl_list);
|
||||
if (ret) {
|
||||
dev_err(dev->dev, "mei_amthif_irq_read_msg failed = %d\n",
|
||||
ret);
|
||||
goto end;
|
||||
}
|
||||
} else {
|
||||
ret = mei_cl_irq_read_msg(dev, mei_hdr, cmpl_list);
|
||||
if (ret) {
|
||||
dev_err(dev->dev, "mei_cl_irq_read_msg failed = %d\n",
|
||||
ret);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
reset_slots:
|
||||
/* reset the number of slots and header */
|
||||
*slots = mei_count_full_read_slots(dev);
|
||||
dev->rd_msg_hdr = 0;
|
||||
|
||||
if (*slots == -EOVERFLOW) {
|
||||
/* overflow - reset */
|
||||
dev_err(dev->dev, "resetting due to slots overflow.\n");
|
||||
/* set the event since message has been read */
|
||||
ret = -ERANGE;
|
||||
goto end;
|
||||
}
|
||||
end:
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(mei_irq_read_handler);
|
||||
|
||||
|
||||
/**
|
||||
* mei_irq_write_handler - dispatch write requests
|
||||
* after irq received
|
||||
*
|
||||
* @dev: the device structure
|
||||
* @cmpl_list: An instance of our list structure
|
||||
*
|
||||
* Return: 0 on success, <0 on failure.
|
||||
*/
|
||||
int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
|
||||
{
|
||||
|
||||
struct mei_cl *cl;
|
||||
struct mei_cl_cb *cb, *next;
|
||||
struct mei_cl_cb *list;
|
||||
s32 slots;
|
||||
int ret;
|
||||
|
||||
|
||||
if (!mei_hbuf_acquire(dev))
|
||||
return 0;
|
||||
|
||||
slots = mei_hbuf_empty_slots(dev);
|
||||
if (slots <= 0)
|
||||
return -EMSGSIZE;
|
||||
|
||||
/* complete all waiting for write CB */
|
||||
dev_dbg(dev->dev, "complete all waiting for write cb.\n");
|
||||
|
||||
list = &dev->write_waiting_list;
|
||||
list_for_each_entry_safe(cb, next, &list->list, list) {
|
||||
cl = cb->cl;
|
||||
if (cl == NULL)
|
||||
continue;
|
||||
|
||||
cl->status = 0;
|
||||
list_del(&cb->list);
|
||||
if (cb->fop_type == MEI_FOP_WRITE &&
|
||||
cl != &dev->iamthif_cl) {
|
||||
cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
|
||||
cl->writing_state = MEI_WRITE_COMPLETE;
|
||||
list_add_tail(&cb->list, &cmpl_list->list);
|
||||
}
|
||||
if (cl == &dev->iamthif_cl) {
|
||||
cl_dbg(dev, cl, "check iamthif flow control.\n");
|
||||
if (dev->iamthif_flow_control_pending) {
|
||||
ret = mei_amthif_irq_read(dev, &slots);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->wd_state == MEI_WD_STOPPING) {
|
||||
dev->wd_state = MEI_WD_IDLE;
|
||||
wake_up(&dev->wait_stop_wd);
|
||||
}
|
||||
|
||||
if (mei_cl_is_connected(&dev->wd_cl)) {
|
||||
if (dev->wd_pending &&
|
||||
mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
|
||||
ret = mei_wd_send(dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
dev->wd_pending = false;
|
||||
}
|
||||
}
|
||||
|
||||
/* complete control write list CB */
|
||||
dev_dbg(dev->dev, "complete control write list cb.\n");
|
||||
list_for_each_entry_safe(cb, next, &dev->ctrl_wr_list.list, list) {
|
||||
cl = cb->cl;
|
||||
if (!cl) {
|
||||
list_del(&cb->list);
|
||||
return -ENODEV;
|
||||
}
|
||||
switch (cb->fop_type) {
|
||||
case MEI_FOP_DISCONNECT:
|
||||
/* send disconnect message */
|
||||
ret = mei_cl_irq_disconnect(cl, cb, cmpl_list);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
break;
|
||||
case MEI_FOP_READ:
|
||||
/* send flow control message */
|
||||
ret = mei_cl_irq_read(cl, cb, cmpl_list);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
break;
|
||||
case MEI_FOP_CONNECT:
|
||||
/* connect message */
|
||||
ret = mei_cl_irq_connect(cl, cb, cmpl_list);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
break;
|
||||
case MEI_FOP_DISCONNECT_RSP:
|
||||
/* send disconnect resp */
|
||||
ret = mei_cl_irq_disconnect_rsp(cl, cb, cmpl_list);
|
||||
if (ret)
|
||||
return ret;
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
|
||||
}
|
||||
/* complete write list CB */
|
||||
dev_dbg(dev->dev, "complete write list cb.\n");
|
||||
list_for_each_entry_safe(cb, next, &dev->write_list.list, list) {
|
||||
cl = cb->cl;
|
||||
if (cl == NULL)
|
||||
continue;
|
||||
if (cl == &dev->iamthif_cl)
|
||||
ret = mei_amthif_irq_write(cl, cb, cmpl_list);
|
||||
else
|
||||
ret = mei_cl_irq_write(cl, cb, cmpl_list);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(mei_irq_write_handler);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* mei_timer - timer function.
|
||||
*
|
||||
* @work: pointer to the work_struct structure
|
||||
*
|
||||
*/
|
||||
void mei_timer(struct work_struct *work)
|
||||
{
|
||||
unsigned long timeout;
|
||||
struct mei_cl *cl;
|
||||
|
||||
struct mei_device *dev = container_of(work,
|
||||
struct mei_device, timer_work.work);
|
||||
|
||||
|
||||
mutex_lock(&dev->device_lock);
|
||||
|
||||
/* Catch interrupt stalls during HBM init handshake */
|
||||
if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
|
||||
dev->hbm_state != MEI_HBM_IDLE) {
|
||||
|
||||
if (dev->init_clients_timer) {
|
||||
if (--dev->init_clients_timer == 0) {
|
||||
dev_err(dev->dev, "timer: init clients timeout hbm_state = %d.\n",
|
||||
dev->hbm_state);
|
||||
mei_reset(dev);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->dev_state != MEI_DEV_ENABLED)
|
||||
goto out;
|
||||
|
||||
/*** connect/disconnect timeouts ***/
|
||||
list_for_each_entry(cl, &dev->file_list, link) {
|
||||
if (cl->timer_count) {
|
||||
if (--cl->timer_count == 0) {
|
||||
dev_err(dev->dev, "timer: connect/disconnect timeout.\n");
|
||||
mei_reset(dev);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!mei_cl_is_connected(&dev->iamthif_cl))
|
||||
goto out;
|
||||
|
||||
if (dev->iamthif_stall_timer) {
|
||||
if (--dev->iamthif_stall_timer == 0) {
|
||||
dev_err(dev->dev, "timer: amthif hanged.\n");
|
||||
mei_reset(dev);
|
||||
dev->iamthif_msg_buf_size = 0;
|
||||
dev->iamthif_msg_buf_index = 0;
|
||||
dev->iamthif_canceled = false;
|
||||
dev->iamthif_ioctl = true;
|
||||
dev->iamthif_state = MEI_IAMTHIF_IDLE;
|
||||
dev->iamthif_timer = 0;
|
||||
|
||||
mei_io_cb_free(dev->iamthif_current_cb);
|
||||
dev->iamthif_current_cb = NULL;
|
||||
|
||||
dev->iamthif_file_object = NULL;
|
||||
mei_amthif_run_next_cmd(dev);
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->iamthif_timer) {
|
||||
|
||||
timeout = dev->iamthif_timer +
|
||||
mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
|
||||
|
||||
dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",
|
||||
dev->iamthif_timer);
|
||||
dev_dbg(dev->dev, "timeout = %ld\n", timeout);
|
||||
dev_dbg(dev->dev, "jiffies = %ld\n", jiffies);
|
||||
if (time_after(jiffies, timeout)) {
|
||||
/*
|
||||
* User didn't read the AMTHI data on time (15sec)
|
||||
* freeing AMTHI for other requests
|
||||
*/
|
||||
|
||||
dev_dbg(dev->dev, "freeing AMTHI for other requests\n");
|
||||
|
||||
mei_io_list_flush(&dev->amthif_rd_complete_list,
|
||||
&dev->iamthif_cl);
|
||||
mei_io_cb_free(dev->iamthif_current_cb);
|
||||
dev->iamthif_current_cb = NULL;
|
||||
|
||||
dev->iamthif_file_object->private_data = NULL;
|
||||
dev->iamthif_file_object = NULL;
|
||||
dev->iamthif_timer = 0;
|
||||
mei_amthif_run_next_cmd(dev);
|
||||
|
||||
}
|
||||
}
|
||||
out:
|
||||
if (dev->dev_state != MEI_DEV_DISABLED)
|
||||
schedule_delayed_work(&dev->timer_work, 2 * HZ);
|
||||
mutex_unlock(&dev->device_lock);
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue