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提交 ce8126c3 编写于 作者: J John W. Linville
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iwmc3200top: remove driver for unavailable hardware 

This hardware never became available to normal humans.  Leaving this
driver imposes unwelcome maintenance costs for no clear benefit.

Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 5da7b2e0
隐藏空白更改
内联 并排
Showing with 0 addition and 2103 deletion
drivers/misc/Kconfig
浏览文件 @ ce8126c3
......@@ -511,7 +511,6 @@ config USB_SWITCH_FSA9480
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
source "drivers/misc/iwmc3200top/Kconfig"
source "drivers/misc/ti-st/Kconfig"
source "drivers/misc/lis3lv02d/Kconfig"
source "drivers/misc/carma/Kconfig"
......
drivers/misc/Makefile
浏览文件 @ ce8126c3
......@@ -36,7 +36,6 @@ obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o
obj-$(CONFIG_DS1682) += ds1682.o
obj-$(CONFIG_TI_DAC7512) += ti_dac7512.o
obj-$(CONFIG_C2PORT) += c2port/
obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/
obj-$(CONFIG_HMC6352) += hmc6352.o
obj-y += eeprom/
obj-y += cb710/
......
drivers/misc/iwmc3200top/Kconfig 已删除 100644 → 0
浏览文件 @ 5da7b2e0
config IWMC3200TOP
tristate "Intel Wireless MultiCom Top Driver"
depends on MMC && EXPERIMENTAL
select FW_LOADER
---help---
Intel Wireless MultiCom 3200 Top driver is responsible for
for firmware load and enabled coms enumeration
config IWMC3200TOP_DEBUG
bool "Enable full debug output of iwmc3200top Driver"
depends on IWMC3200TOP
---help---
Enable full debug output of iwmc3200top Driver
config IWMC3200TOP_DEBUGFS
bool "Enable Debugfs debugging interface for iwmc3200top"
depends on IWMC3200TOP
---help---
Enable creation of debugfs files for iwmc3200top
drivers/misc/iwmc3200top/Makefile 已删除 100644 → 0
浏览文件 @ 5da7b2e0
# iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
# drivers/misc/iwmc3200top/Makefile
#
# Copyright (C) 2009 Intel Corporation. All rights reserved.
#
# 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 distributed in the hope that 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
#
# Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
# -
#
#
obj-$(CONFIG_IWMC3200TOP) += iwmc3200top.o
iwmc3200top-objs := main.o fw-download.o
iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUG) += log.o
iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUGFS) += debugfs.o
drivers/misc/iwmc3200top/debugfs.c 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/debufs.c
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio.h>
#include <linux/debugfs.h>
#include "iwmc3200top.h"
#include "fw-msg.h"
#include "log.h"
#include "debugfs.h"
/* Constants definition */
#define HEXADECIMAL_RADIX 16
/* Functions definition */
#define DEBUGFS_ADD(name, parent) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \
&iwmct_dbgfs_##name##_ops); \
} while (0)
#define DEBUGFS_RM(name) do { \
debugfs_remove(name); \
name = NULL; \
} while (0)
#define DEBUGFS_READ_FUNC(name) \
ssize_t iwmct_dbgfs_##name##_read(struct file *file, \
char __user *user_buf, \
size_t count, loff_t *ppos);
#define DEBUGFS_WRITE_FUNC(name) \
ssize_t iwmct_dbgfs_##name##_write(struct file *file, \
const char __user *user_buf, \
size_t count, loff_t *ppos);
#define DEBUGFS_READ_FILE_OPS(name) \
DEBUGFS_READ_FUNC(name) \
static const struct file_operations iwmct_dbgfs_##name##_ops = { \
.read = iwmct_dbgfs_##name##_read, \
.open = iwmct_dbgfs_open_file_generic, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_WRITE_FILE_OPS(name) \
DEBUGFS_WRITE_FUNC(name) \
static const struct file_operations iwmct_dbgfs_##name##_ops = { \
.write = iwmct_dbgfs_##name##_write, \
.open = iwmct_dbgfs_open_file_generic, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
DEBUGFS_READ_FUNC(name) \
DEBUGFS_WRITE_FUNC(name) \
static const struct file_operations iwmct_dbgfs_##name##_ops = {\
.write = iwmct_dbgfs_##name##_write, \
.read = iwmct_dbgfs_##name##_read, \
.open = iwmct_dbgfs_open_file_generic, \
.llseek = generic_file_llseek, \
};
/* Debugfs file ops definitions */
/*
* Create the debugfs files and directories
*
*/
void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
{
struct iwmct_debugfs *dbgfs;
dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL);
if (!dbgfs) {
LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n",
sizeof(struct iwmct_debugfs));
return;
}
priv->dbgfs = dbgfs;
dbgfs->name = name;
dbgfs->dir_drv = debugfs_create_dir(name, NULL);
if (!dbgfs->dir_drv) {
LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n");
return;
}
return;
}
/**
* Remove the debugfs files and directories
*
*/
void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
{
if (!dbgfs)
return;
DEBUGFS_RM(dbgfs->dir_drv);
kfree(dbgfs);
dbgfs = NULL;
}
drivers/misc/iwmc3200top/debugfs.h 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/debufs.h
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#ifndef __DEBUGFS_H__
#define __DEBUGFS_H__
#ifdef CONFIG_IWMC3200TOP_DEBUGFS
struct iwmct_debugfs {
const char *name;
struct dentry *dir_drv;
struct dir_drv_files {
} dbgfs_drv_files;
};
void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name);
void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs);
#else /* CONFIG_IWMC3200TOP_DEBUGFS */
struct iwmct_debugfs;
static inline void
iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
{}
static inline void
iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
{}
#endif /* CONFIG_IWMC3200TOP_DEBUGFS */
#endif /* __DEBUGFS_H__ */
drivers/misc/iwmc3200top/fw-download.c 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/fw-download.c
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#include <linux/firmware.h>
#include <linux/mmc/sdio_func.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#include "iwmc3200top.h"
#include "log.h"
#include "fw-msg.h"
#define CHECKSUM_BYTES_NUM sizeof(u32)
/**
init parser struct with file
*/
static int iwmct_fw_parser_init(struct iwmct_priv *priv, const u8 *file,
size_t file_size, size_t block_size)
{
struct iwmct_parser *parser = &priv->parser;
struct iwmct_fw_hdr *fw_hdr = &parser->versions;
LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
LOG_INFO(priv, FW_DOWNLOAD, "file_size=%zd\n", file_size);
parser->file = file;
parser->file_size = file_size;
parser->cur_pos = 0;
parser->entry_point = 0;
parser->buf = kzalloc(block_size, GFP_KERNEL);
if (!parser->buf) {
LOG_ERROR(priv, FW_DOWNLOAD, "kzalloc error\n");
return -ENOMEM;
}
parser->buf_size = block_size;
/* extract fw versions */
memcpy(fw_hdr, parser->file, sizeof(struct iwmct_fw_hdr));
LOG_INFO(priv, FW_DOWNLOAD, "fw versions are:\n"
"top %u.%u.%u gps %u.%u.%u bt %u.%u.%u tic %s\n",
fw_hdr->top_major, fw_hdr->top_minor, fw_hdr->top_revision,
fw_hdr->gps_major, fw_hdr->gps_minor, fw_hdr->gps_revision,
fw_hdr->bt_major, fw_hdr->bt_minor, fw_hdr->bt_revision,
fw_hdr->tic_name);
parser->cur_pos += sizeof(struct iwmct_fw_hdr);
LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
return 0;
}
static bool iwmct_checksum(struct iwmct_priv *priv)
{
struct iwmct_parser *parser = &priv->parser;
__le32 *file = (__le32 *)parser->file;
int i, pad, steps;
u32 accum = 0;
u32 checksum;
u32 mask = 0xffffffff;
pad = (parser->file_size - CHECKSUM_BYTES_NUM) % 4;
steps = (parser->file_size - CHECKSUM_BYTES_NUM) / 4;
LOG_INFO(priv, FW_DOWNLOAD, "pad=%d steps=%d\n", pad, steps);
for (i = 0; i < steps; i++)
accum += le32_to_cpu(file[i]);
if (pad) {
mask <<= 8 * (4 - pad);
accum += le32_to_cpu(file[steps]) & mask;
}
checksum = get_unaligned_le32((__le32 *)(parser->file +
parser->file_size - CHECKSUM_BYTES_NUM));
LOG_INFO(priv, FW_DOWNLOAD,
"compare checksum accum=0x%x to checksum=0x%x\n",
accum, checksum);
return checksum == accum;
}
static int iwmct_parse_next_section(struct iwmct_priv *priv, const u8 **p_sec,
size_t *sec_size, __le32 *sec_addr)
{
struct iwmct_parser *parser = &priv->parser;
struct iwmct_dbg *dbg = &priv->dbg;
struct iwmct_fw_sec_hdr *sec_hdr;
LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
while (parser->cur_pos + sizeof(struct iwmct_fw_sec_hdr)
<= parser->file_size) {
sec_hdr = (struct iwmct_fw_sec_hdr *)
(parser->file + parser->cur_pos);
parser->cur_pos += sizeof(struct iwmct_fw_sec_hdr);
LOG_INFO(priv, FW_DOWNLOAD,
"sec hdr: type=%s addr=0x%x size=%d\n",
sec_hdr->type, sec_hdr->target_addr,
sec_hdr->data_size);
if (strcmp(sec_hdr->type, "ENT") == 0)
parser->entry_point = le32_to_cpu(sec_hdr->target_addr);
else if (strcmp(sec_hdr->type, "LBL") == 0)
strcpy(dbg->label_fw, parser->file + parser->cur_pos);
else if (((strcmp(sec_hdr->type, "TOP") == 0) &&
(priv->barker & BARKER_DNLOAD_TOP_MSK)) ||
((strcmp(sec_hdr->type, "GPS") == 0) &&
(priv->barker & BARKER_DNLOAD_GPS_MSK)) ||
((strcmp(sec_hdr->type, "BTH") == 0) &&
(priv->barker & BARKER_DNLOAD_BT_MSK))) {
*sec_addr = sec_hdr->target_addr;
*sec_size = le32_to_cpu(sec_hdr->data_size);
*p_sec = parser->file + parser->cur_pos;
parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
return 1;
} else if (strcmp(sec_hdr->type, "LOG") != 0)
LOG_WARNING(priv, FW_DOWNLOAD,
"skipping section type %s\n",
sec_hdr->type);
parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
LOG_INFO(priv, FW_DOWNLOAD,
"finished with section cur_pos=%zd\n", parser->cur_pos);
}
LOG_TRACE(priv, INIT, "<--\n");
return 0;
}
static int iwmct_download_section(struct iwmct_priv *priv, const u8 *p_sec,
size_t sec_size, __le32 addr)
{
struct iwmct_parser *parser = &priv->parser;
struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
const u8 *cur_block = p_sec;
size_t sent = 0;
int cnt = 0;
int ret = 0;
u32 cmd = 0;
LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
LOG_INFO(priv, FW_DOWNLOAD, "Download address 0x%x size 0x%zx\n",
addr, sec_size);
while (sent < sec_size) {
int i;
u32 chksm = 0;
u32 reset = atomic_read(&priv->reset);
/* actual FW data */
u32 data_size = min(parser->buf_size - sizeof(*hdr),
sec_size - sent);
/* Pad to block size */
u32 trans_size = (data_size + sizeof(*hdr) +
IWMC_SDIO_BLK_SIZE - 1) &
~(IWMC_SDIO_BLK_SIZE - 1);
++cnt;
/* in case of reset, interrupt FW DOWNLAOD */
if (reset) {
LOG_INFO(priv, FW_DOWNLOAD,
"Reset detected. Abort FW download!!!");
ret = -ECANCELED;
goto exit;
}
memset(parser->buf, 0, parser->buf_size);
cmd |= IWMC_OPCODE_WRITE << CMD_HDR_OPCODE_POS;
cmd |= IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
cmd |= (priv->dbg.direct ? 1 : 0) << CMD_HDR_DIRECT_ACCESS_POS;
cmd |= (priv->dbg.checksum ? 1 : 0) << CMD_HDR_USE_CHECKSUM_POS;
hdr->data_size = cpu_to_le32(data_size);
hdr->target_addr = addr;
/* checksum is allowed for sizes divisible by 4 */
if (data_size & 0x3)
cmd &= ~CMD_HDR_USE_CHECKSUM_MSK;
memcpy(hdr->data, cur_block, data_size);
if (cmd & CMD_HDR_USE_CHECKSUM_MSK) {
chksm = data_size + le32_to_cpu(addr) + cmd;
for (i = 0; i < data_size >> 2; i++)
chksm += ((u32 *)cur_block)[i];
hdr->block_chksm = cpu_to_le32(chksm);
LOG_INFO(priv, FW_DOWNLOAD, "Checksum = 0x%X\n",
hdr->block_chksm);
}
LOG_INFO(priv, FW_DOWNLOAD, "trans#%d, len=%d, sent=%zd, "
"sec_size=%zd, startAddress 0x%X\n",
cnt, trans_size, sent, sec_size, addr);
if (priv->dbg.dump)
LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, trans_size);
hdr->cmd = cpu_to_le32(cmd);
/* send it down */
/* TODO: add more proper sending and error checking */
ret = iwmct_tx(priv, parser->buf, trans_size);
if (ret != 0) {
LOG_INFO(priv, FW_DOWNLOAD,
"iwmct_tx returned %d\n", ret);
goto exit;
}
addr = cpu_to_le32(le32_to_cpu(addr) + data_size);
sent += data_size;
cur_block = p_sec + sent;
if (priv->dbg.blocks && (cnt + 1) >= priv->dbg.blocks) {
LOG_INFO(priv, FW_DOWNLOAD,
"Block number limit is reached [%d]\n",
priv->dbg.blocks);
break;
}
}
if (sent < sec_size)
ret = -EINVAL;
exit:
LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
return ret;
}
static int iwmct_kick_fw(struct iwmct_priv *priv, bool jump)
{
struct iwmct_parser *parser = &priv->parser;
struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
int ret;
u32 cmd;
LOG_TRACE(priv, FW_DOWNLOAD, "-->\n");
memset(parser->buf, 0, parser->buf_size);
cmd = IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
if (jump) {
cmd |= IWMC_OPCODE_JUMP << CMD_HDR_OPCODE_POS;
hdr->target_addr = cpu_to_le32(parser->entry_point);
LOG_INFO(priv, FW_DOWNLOAD, "jump address 0x%x\n",
parser->entry_point);
} else {
cmd |= IWMC_OPCODE_LAST_COMMAND << CMD_HDR_OPCODE_POS;
LOG_INFO(priv, FW_DOWNLOAD, "last command\n");
}
hdr->cmd = cpu_to_le32(cmd);
LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, sizeof(*hdr));
/* send it down */
/* TODO: add more proper sending and error checking */
ret = iwmct_tx(priv, parser->buf, IWMC_SDIO_BLK_SIZE);
if (ret)
LOG_INFO(priv, FW_DOWNLOAD, "iwmct_tx returned %d", ret);
LOG_TRACE(priv, FW_DOWNLOAD, "<--\n");
return 0;
}
int iwmct_fw_load(struct iwmct_priv *priv)
{
const u8 *fw_name = FW_NAME(FW_API_VER);
const struct firmware *raw;
const u8 *pdata;
size_t len;
__le32 addr;
int ret;
LOG_INFO(priv, FW_DOWNLOAD, "barker download request 0x%x is:\n",
priv->barker);
LOG_INFO(priv, FW_DOWNLOAD, "******* Top FW %s requested ********\n",
(priv->barker & BARKER_DNLOAD_TOP_MSK) ? "was" : "not");
LOG_INFO(priv, FW_DOWNLOAD, "******* GPS FW %s requested ********\n",
(priv->barker & BARKER_DNLOAD_GPS_MSK) ? "was" : "not");
LOG_INFO(priv, FW_DOWNLOAD, "******* BT FW %s requested ********\n",
(priv->barker & BARKER_DNLOAD_BT_MSK) ? "was" : "not");
/* get the firmware */
ret = request_firmware(&raw, fw_name, &priv->func->dev);
if (ret < 0) {
LOG_ERROR(priv, FW_DOWNLOAD, "%s request_firmware failed %d\n",
fw_name, ret);
goto exit;
}
if (raw->size < sizeof(struct iwmct_fw_sec_hdr)) {
LOG_ERROR(priv, FW_DOWNLOAD, "%s smaller then (%zd) (%zd)\n",
fw_name, sizeof(struct iwmct_fw_sec_hdr), raw->size);
goto exit;
}
LOG_INFO(priv, FW_DOWNLOAD, "Read firmware '%s'\n", fw_name);
/* clear parser struct */
ret = iwmct_fw_parser_init(priv, raw->data, raw->size, priv->trans_len);
if (ret < 0) {
LOG_ERROR(priv, FW_DOWNLOAD,
"iwmct_parser_init failed: Reason %d\n", ret);
goto exit;
}
if (!iwmct_checksum(priv)) {
LOG_ERROR(priv, FW_DOWNLOAD, "checksum error\n");
ret = -EINVAL;
goto exit;
}
/* download firmware to device */
while (iwmct_parse_next_section(priv, &pdata, &len, &addr)) {
ret = iwmct_download_section(priv, pdata, len, addr);
if (ret) {
LOG_ERROR(priv, FW_DOWNLOAD,
"%s download section failed\n", fw_name);
goto exit;
}
}
ret = iwmct_kick_fw(priv, !!(priv->barker & BARKER_DNLOAD_JUMP_MSK));
exit:
kfree(priv->parser.buf);
release_firmware(raw);
return ret;
}
drivers/misc/iwmc3200top/fw-msg.h 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/fw-msg.h
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#ifndef __FWMSG_H__
#define __FWMSG_H__
#define COMM_TYPE_D2H 0xFF
#define COMM_TYPE_H2D 0xEE
#define COMM_CATEGORY_OPERATIONAL 0x00
#define COMM_CATEGORY_DEBUG 0x01
#define COMM_CATEGORY_TESTABILITY 0x02
#define COMM_CATEGORY_DIAGNOSTICS 0x03
#define OP_DBG_ZSTR_MSG cpu_to_le16(0x1A)
#define FW_LOG_SRC_MAX 32
#define FW_LOG_SRC_ALL 255
#define FW_STRING_TABLE_ADDR cpu_to_le32(0x0C000000)
#define CMD_DBG_LOG_LEVEL cpu_to_le16(0x0001)
#define CMD_TST_DEV_RESET cpu_to_le16(0x0060)
#define CMD_TST_FUNC_RESET cpu_to_le16(0x0062)
#define CMD_TST_IFACE_RESET cpu_to_le16(0x0064)
#define CMD_TST_CPU_UTILIZATION cpu_to_le16(0x0065)
#define CMD_TST_TOP_DEEP_SLEEP cpu_to_le16(0x0080)
#define CMD_TST_WAKEUP cpu_to_le16(0x0081)
#define CMD_TST_FUNC_WAKEUP cpu_to_le16(0x0082)
#define CMD_TST_FUNC_DEEP_SLEEP_REQUEST cpu_to_le16(0x0083)
#define CMD_TST_GET_MEM_DUMP cpu_to_le16(0x0096)
#define OP_OPR_ALIVE cpu_to_le16(0x0010)
#define OP_OPR_CMD_ACK cpu_to_le16(0x001F)
#define OP_OPR_CMD_NACK cpu_to_le16(0x0020)
#define OP_TST_MEM_DUMP cpu_to_le16(0x0043)
#define CMD_FLAG_PADDING_256 0x80
#define FW_HCMD_BLOCK_SIZE 256
struct msg_hdr {
u8 type;
u8 category;
__le16 opcode;
u8 seqnum;
u8 flags;
__le16 length;
} __attribute__((__packed__));
struct log_hdr {
__le32 timestamp;
u8 severity;
u8 logsource;
__le16 reserved;
} __attribute__((__packed__));
struct mdump_hdr {
u8 dmpid;
u8 frag;
__le16 size;
__le32 addr;
} __attribute__((__packed__));
struct top_msg {
struct msg_hdr hdr;
union {
/* D2H messages */
struct {
struct log_hdr log_hdr;
u8 data[1];
} __attribute__((__packed__)) log;
struct {
struct log_hdr log_hdr;
struct mdump_hdr md_hdr;
u8 data[1];
} __attribute__((__packed__)) mdump;
/* H2D messages */
struct {
u8 logsource;
u8 sevmask;
} __attribute__((__packed__)) logdefs[FW_LOG_SRC_MAX];
struct mdump_hdr mdump_req;
} u;
} __attribute__((__packed__));
#endif /* __FWMSG_H__ */
drivers/misc/iwmc3200top/iwmc3200top.h 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/iwmc3200top.h
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#ifndef __IWMC3200TOP_H__
#define __IWMC3200TOP_H__
#include <linux/workqueue.h>
#define DRV_NAME "iwmc3200top"
#define FW_API_VER 1
#define _FW_NAME(api) DRV_NAME "." #api ".fw"
#define FW_NAME(api) _FW_NAME(api)
#define IWMC_SDIO_BLK_SIZE 256
#define IWMC_DEFAULT_TR_BLK 64
#define IWMC_SDIO_DATA_ADDR 0x0
#define IWMC_SDIO_INTR_ENABLE_ADDR 0x14
#define IWMC_SDIO_INTR_STATUS_ADDR 0x13
#define IWMC_SDIO_INTR_CLEAR_ADDR 0x13
#define IWMC_SDIO_INTR_GET_SIZE_ADDR 0x2C
#define COMM_HUB_HEADER_LENGTH 16
#define LOGGER_HEADER_LENGTH 10
#define BARKER_DNLOAD_BT_POS 0
#define BARKER_DNLOAD_BT_MSK BIT(BARKER_DNLOAD_BT_POS)
#define BARKER_DNLOAD_GPS_POS 1
#define BARKER_DNLOAD_GPS_MSK BIT(BARKER_DNLOAD_GPS_POS)
#define BARKER_DNLOAD_TOP_POS 2
#define BARKER_DNLOAD_TOP_MSK BIT(BARKER_DNLOAD_TOP_POS)
#define BARKER_DNLOAD_RESERVED1_POS 3
#define BARKER_DNLOAD_RESERVED1_MSK BIT(BARKER_DNLOAD_RESERVED1_POS)
#define BARKER_DNLOAD_JUMP_POS 4
#define BARKER_DNLOAD_JUMP_MSK BIT(BARKER_DNLOAD_JUMP_POS)
#define BARKER_DNLOAD_SYNC_POS 5
#define BARKER_DNLOAD_SYNC_MSK BIT(BARKER_DNLOAD_SYNC_POS)
#define BARKER_DNLOAD_RESERVED2_POS 6
#define BARKER_DNLOAD_RESERVED2_MSK (0x3 << BARKER_DNLOAD_RESERVED2_POS)
#define BARKER_DNLOAD_BARKER_POS 8
#define BARKER_DNLOAD_BARKER_MSK (0xffffff << BARKER_DNLOAD_BARKER_POS)
#define IWMC_BARKER_REBOOT (0xdeadbe << BARKER_DNLOAD_BARKER_POS)
/* whole field barker */
#define IWMC_BARKER_ACK 0xfeedbabe
#define IWMC_CMD_SIGNATURE 0xcbbc
#define CMD_HDR_OPCODE_POS 0
#define CMD_HDR_OPCODE_MSK_MSK (0xf << CMD_HDR_OPCODE_MSK_POS)
#define CMD_HDR_RESPONSE_CODE_POS 4
#define CMD_HDR_RESPONSE_CODE_MSK (0xf << CMD_HDR_RESPONSE_CODE_POS)
#define CMD_HDR_USE_CHECKSUM_POS 8
#define CMD_HDR_USE_CHECKSUM_MSK BIT(CMD_HDR_USE_CHECKSUM_POS)
#define CMD_HDR_RESPONSE_REQUIRED_POS 9
#define CMD_HDR_RESPONSE_REQUIRED_MSK BIT(CMD_HDR_RESPONSE_REQUIRED_POS)
#define CMD_HDR_DIRECT_ACCESS_POS 10
#define CMD_HDR_DIRECT_ACCESS_MSK BIT(CMD_HDR_DIRECT_ACCESS_POS)
#define CMD_HDR_RESERVED_POS 11
#define CMD_HDR_RESERVED_MSK BIT(0x1f << CMD_HDR_RESERVED_POS)
#define CMD_HDR_SIGNATURE_POS 16
#define CMD_HDR_SIGNATURE_MSK BIT(0xffff << CMD_HDR_SIGNATURE_POS)
enum {
IWMC_OPCODE_PING = 0,
IWMC_OPCODE_READ = 1,
IWMC_OPCODE_WRITE = 2,
IWMC_OPCODE_JUMP = 3,
IWMC_OPCODE_REBOOT = 4,
IWMC_OPCODE_PERSISTENT_WRITE = 5,
IWMC_OPCODE_PERSISTENT_READ = 6,
IWMC_OPCODE_READ_MODIFY_WRITE = 7,
IWMC_OPCODE_LAST_COMMAND = 15
};
struct iwmct_fw_load_hdr {
__le32 cmd;
__le32 target_addr;
__le32 data_size;
__le32 block_chksm;
u8 data[0];
};
/**
* struct iwmct_fw_hdr
* holds all sw components versions
*/
struct iwmct_fw_hdr {
u8 top_major;
u8 top_minor;
u8 top_revision;
u8 gps_major;
u8 gps_minor;
u8 gps_revision;
u8 bt_major;
u8 bt_minor;
u8 bt_revision;
u8 tic_name[31];
};
/**
* struct iwmct_fw_sec_hdr
* @type: function type
* @data_size: section's data size
* @target_addr: download address
*/
struct iwmct_fw_sec_hdr {
u8 type[4];
__le32 data_size;
__le32 target_addr;
};
/**
* struct iwmct_parser
* @file: fw image
* @file_size: fw size
* @cur_pos: position in file
* @buf: temp buf for download
* @buf_size: size of buf
* @entry_point: address to jump in fw kick-off
*/
struct iwmct_parser {
const u8 *file;
size_t file_size;
size_t cur_pos;
u8 *buf;
size_t buf_size;
u32 entry_point;
struct iwmct_fw_hdr versions;
};
struct iwmct_work_struct {
struct list_head list;
ssize_t iosize;
};
struct iwmct_dbg {
int blocks;
bool dump;
bool jump;
bool direct;
bool checksum;
bool fw_download;
int block_size;
int download_trans_blks;
char label_fw[256];
};
struct iwmct_debugfs;
struct iwmct_priv {
struct sdio_func *func;
struct iwmct_debugfs *dbgfs;
struct iwmct_parser parser;
atomic_t reset;
atomic_t dev_sync;
u32 trans_len;
u32 barker;
struct iwmct_dbg dbg;
/* drivers work items */
struct work_struct bus_rescan_worker;
struct work_struct isr_worker;
/* drivers wait queue */
wait_queue_head_t wait_q;
/* rx request list */
struct list_head read_req_list;
};
extern int iwmct_tx(struct iwmct_priv *priv, void *src, int count);
extern int iwmct_fw_load(struct iwmct_priv *priv);
extern void iwmct_dbg_init_params(struct iwmct_priv *drv);
extern void iwmct_dbg_init_drv_attrs(struct device_driver *drv);
extern void iwmct_dbg_remove_drv_attrs(struct device_driver *drv);
extern int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len);
#endif /* __IWMC3200TOP_H__ */
drivers/misc/iwmc3200top/log.c 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/log.c
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#include <linux/kernel.h>
#include <linux/mmc/sdio_func.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include "fw-msg.h"
#include "iwmc3200top.h"
#include "log.h"
/* Maximal hexadecimal string size of the FW memdump message */
#define LOG_MSG_SIZE_MAX 12400
/* iwmct_logdefs is a global used by log macros */
u8 iwmct_logdefs[LOG_SRC_MAX];
static u8 iwmct_fw_logdefs[FW_LOG_SRC_MAX];
static int _log_set_log_filter(u8 *logdefs, int size, u8 src, u8 logmask)
{
int i;
if (src < size)
logdefs[src] = logmask;
else if (src == LOG_SRC_ALL)
for (i = 0; i < size; i++)
logdefs[i] = logmask;
else
return -1;
return 0;
}
int iwmct_log_set_filter(u8 src, u8 logmask)
{
return _log_set_log_filter(iwmct_logdefs, LOG_SRC_MAX, src, logmask);
}
int iwmct_log_set_fw_filter(u8 src, u8 logmask)
{
return _log_set_log_filter(iwmct_fw_logdefs,
FW_LOG_SRC_MAX, src, logmask);
}
static int log_msg_format_hex(char *str, int slen, u8 *ibuf,
int ilen, char *pref)
{
int pos = 0;
int i;
int len;
for (pos = 0, i = 0; pos < slen - 2 && pref[i] != '\0'; i++, pos++)
str[pos] = pref[i];
for (i = 0; pos < slen - 2 && i < ilen; pos += len, i++)
len = snprintf(&str[pos], slen - pos - 1, " %2.2X", ibuf[i]);
if (i < ilen)
return -1;
return 0;
}
/* NOTE: This function is not thread safe.
Currently it's called only from sdio rx worker - no race there
*/
void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len)
{
struct top_msg *msg;
static char logbuf[LOG_MSG_SIZE_MAX];
msg = (struct top_msg *)buf;
if (len < sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)) {
LOG_ERROR(priv, FW_MSG, "Log message from TOP "
"is too short %d (expected %zd)\n",
len, sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr));
return;
}
if (!(iwmct_fw_logdefs[msg->u.log.log_hdr.logsource] &
BIT(msg->u.log.log_hdr.severity)) ||
!(iwmct_logdefs[LOG_SRC_FW_MSG] & BIT(msg->u.log.log_hdr.severity)))
return;
switch (msg->hdr.category) {
case COMM_CATEGORY_TESTABILITY:
if (!(iwmct_logdefs[LOG_SRC_TST] &
BIT(msg->u.log.log_hdr.severity)))
return;
if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
le16_to_cpu(msg->hdr.length) +
sizeof(msg->hdr), "<TST>"))
LOG_WARNING(priv, TST,
"TOP TST message is too long, truncating...");
LOG_WARNING(priv, TST, "%s\n", logbuf);
break;
case COMM_CATEGORY_DEBUG:
if (msg->hdr.opcode == OP_DBG_ZSTR_MSG)
LOG_INFO(priv, FW_MSG, "%s %s", "<DBG>",
((u8 *)msg) + sizeof(msg->hdr)
+ sizeof(msg->u.log.log_hdr));
else {
if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
le16_to_cpu(msg->hdr.length)
+ sizeof(msg->hdr),
"<DBG>"))
LOG_WARNING(priv, FW_MSG,
"TOP DBG message is too long,"
"truncating...");
LOG_WARNING(priv, FW_MSG, "%s\n", logbuf);
}
break;
default:
break;
}
}
static int _log_get_filter_str(u8 *logdefs, int logdefsz, char *buf, int size)
{
int i, pos, len;
for (i = 0, pos = 0; (pos < size-1) && (i < logdefsz); i++) {
len = snprintf(&buf[pos], size - pos - 1, "0x%02X%02X,",
i, logdefs[i]);
pos += len;
}
buf[pos-1] = '\n';
buf[pos] = '\0';
if (i < logdefsz)
return -1;
return 0;
}
int log_get_filter_str(char *buf, int size)
{
return _log_get_filter_str(iwmct_logdefs, LOG_SRC_MAX, buf, size);
}
int log_get_fw_filter_str(char *buf, int size)
{
return _log_get_filter_str(iwmct_fw_logdefs, FW_LOG_SRC_MAX, buf, size);
}
#define HEXADECIMAL_RADIX 16
#define LOG_SRC_FORMAT 7 /* log level is in format of "0xXXXX," */
ssize_t show_iwmct_log_level(struct device *d,
struct device_attribute *attr, char *buf)
{
struct iwmct_priv *priv = dev_get_drvdata(d);
char *str_buf;
int buf_size;
ssize_t ret;
buf_size = (LOG_SRC_FORMAT * LOG_SRC_MAX) + 1;
str_buf = kzalloc(buf_size, GFP_KERNEL);
if (!str_buf) {
LOG_ERROR(priv, DEBUGFS,
"failed to allocate %d bytes\n", buf_size);
ret = -ENOMEM;
goto exit;
}
if (log_get_filter_str(str_buf, buf_size) < 0) {
ret = -EINVAL;
goto exit;
}
ret = sprintf(buf, "%s", str_buf);
exit:
kfree(str_buf);
return ret;
}
ssize_t store_iwmct_log_level(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct iwmct_priv *priv = dev_get_drvdata(d);
char *token, *str_buf = NULL;
long val;
ssize_t ret = count;
u8 src, mask;
if (!count)
goto exit;
str_buf = kzalloc(count, GFP_KERNEL);
if (!str_buf) {
LOG_ERROR(priv, DEBUGFS,
"failed to allocate %zd bytes\n", count);
ret = -ENOMEM;
goto exit;
}
memcpy(str_buf, buf, count);
while ((token = strsep(&str_buf, ",")) != NULL) {
while (isspace(*token))
++token;
if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
LOG_ERROR(priv, DEBUGFS,
"failed to convert string to long %s\n",
token);
ret = -EINVAL;
goto exit;
}
mask = val & 0xFF;
src = (val & 0XFF00) >> 8;
iwmct_log_set_filter(src, mask);
}
exit:
kfree(str_buf);
return ret;
}
ssize_t show_iwmct_log_level_fw(struct device *d,
struct device_attribute *attr, char *buf)
{
struct iwmct_priv *priv = dev_get_drvdata(d);
char *str_buf;
int buf_size;
ssize_t ret;
buf_size = (LOG_SRC_FORMAT * FW_LOG_SRC_MAX) + 2;
str_buf = kzalloc(buf_size, GFP_KERNEL);
if (!str_buf) {
LOG_ERROR(priv, DEBUGFS,
"failed to allocate %d bytes\n", buf_size);
ret = -ENOMEM;
goto exit;
}
if (log_get_fw_filter_str(str_buf, buf_size) < 0) {
ret = -EINVAL;
goto exit;
}
ret = sprintf(buf, "%s", str_buf);
exit:
kfree(str_buf);
return ret;
}
ssize_t store_iwmct_log_level_fw(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct iwmct_priv *priv = dev_get_drvdata(d);
struct top_msg cmd;
char *token, *str_buf = NULL;
ssize_t ret = count;
u16 cmdlen = 0;
int i;
long val;
u8 src, mask;
if (!count)
goto exit;
str_buf = kzalloc(count, GFP_KERNEL);
if (!str_buf) {
LOG_ERROR(priv, DEBUGFS,
"failed to allocate %zd bytes\n", count);
ret = -ENOMEM;
goto exit;
}
memcpy(str_buf, buf, count);
cmd.hdr.type = COMM_TYPE_H2D;
cmd.hdr.category = COMM_CATEGORY_DEBUG;
cmd.hdr.opcode = CMD_DBG_LOG_LEVEL;
for (i = 0; ((token = strsep(&str_buf, ",")) != NULL) &&
(i < FW_LOG_SRC_MAX); i++) {
while (isspace(*token))
++token;
if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
LOG_ERROR(priv, DEBUGFS,
"failed to convert string to long %s\n",
token);
ret = -EINVAL;
goto exit;
}
mask = val & 0xFF; /* LSB */
src = (val & 0XFF00) >> 8; /* 2nd least significant byte. */
iwmct_log_set_fw_filter(src, mask);
cmd.u.logdefs[i].logsource = src;
cmd.u.logdefs[i].sevmask = mask;
}
cmd.hdr.length = cpu_to_le16(i * sizeof(cmd.u.logdefs[0]));
cmdlen = (i * sizeof(cmd.u.logdefs[0]) + sizeof(cmd.hdr));
ret = iwmct_send_hcmd(priv, (u8 *)&cmd, cmdlen);
if (ret) {
LOG_ERROR(priv, DEBUGFS,
"Failed to send %d bytes of fwcmd, ret=%zd\n",
cmdlen, ret);
goto exit;
} else
LOG_INFO(priv, DEBUGFS, "fwcmd sent (%d bytes)\n", cmdlen);
ret = count;
exit:
kfree(str_buf);
return ret;
}
drivers/misc/iwmc3200top/log.h 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/log.h
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#ifndef __LOG_H__
#define __LOG_H__
/* log severity:
* The log levels here match FW log levels
* so values need to stay as is */
#define LOG_SEV_CRITICAL 0
#define LOG_SEV_ERROR 1
#define LOG_SEV_WARNING 2
#define LOG_SEV_INFO 3
#define LOG_SEV_INFOEX 4
/* Log levels not defined for FW */
#define LOG_SEV_TRACE 5
#define LOG_SEV_DUMP 6
#define LOG_SEV_FW_FILTER_ALL \
(BIT(LOG_SEV_CRITICAL) | \
BIT(LOG_SEV_ERROR) | \
BIT(LOG_SEV_WARNING) | \
BIT(LOG_SEV_INFO) | \
BIT(LOG_SEV_INFOEX))
#define LOG_SEV_FILTER_ALL \
(BIT(LOG_SEV_CRITICAL) | \
BIT(LOG_SEV_ERROR) | \
BIT(LOG_SEV_WARNING) | \
BIT(LOG_SEV_INFO) | \
BIT(LOG_SEV_INFOEX) | \
BIT(LOG_SEV_TRACE) | \
BIT(LOG_SEV_DUMP))
/* log source */
#define LOG_SRC_INIT 0
#define LOG_SRC_DEBUGFS 1
#define LOG_SRC_FW_DOWNLOAD 2
#define LOG_SRC_FW_MSG 3
#define LOG_SRC_TST 4
#define LOG_SRC_IRQ 5
#define LOG_SRC_MAX 6
#define LOG_SRC_ALL 0xFF
/**
* Default intitialization runtime log level
*/
#ifndef LOG_SEV_FILTER_RUNTIME
#define LOG_SEV_FILTER_RUNTIME \
(BIT(LOG_SEV_CRITICAL) | \
BIT(LOG_SEV_ERROR) | \
BIT(LOG_SEV_WARNING))
#endif
#ifndef FW_LOG_SEV_FILTER_RUNTIME
#define FW_LOG_SEV_FILTER_RUNTIME LOG_SEV_FILTER_ALL
#endif
#ifdef CONFIG_IWMC3200TOP_DEBUG
/**
* Log macros
*/
#define priv2dev(priv) (&(priv->func)->dev)
#define LOG_CRITICAL(priv, src, fmt, args...) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_CRITICAL)) \
dev_crit(priv2dev(priv), "%s %d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define LOG_ERROR(priv, src, fmt, args...) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_ERROR)) \
dev_err(priv2dev(priv), "%s %d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define LOG_WARNING(priv, src, fmt, args...) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_WARNING)) \
dev_warn(priv2dev(priv), "%s %d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define LOG_INFO(priv, src, fmt, args...) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFO)) \
dev_info(priv2dev(priv), "%s %d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define LOG_TRACE(priv, src, fmt, args...) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_TRACE)) \
dev_dbg(priv2dev(priv), "%s %d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define LOG_HEXDUMP(src, ptr, len) \
do { \
if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_DUMP)) \
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE, \
16, 1, ptr, len, false); \
} while (0)
void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len);
extern u8 iwmct_logdefs[];
int iwmct_log_set_filter(u8 src, u8 logmask);
int iwmct_log_set_fw_filter(u8 src, u8 logmask);
ssize_t show_iwmct_log_level(struct device *d,
struct device_attribute *attr, char *buf);
ssize_t store_iwmct_log_level(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count);
ssize_t show_iwmct_log_level_fw(struct device *d,
struct device_attribute *attr, char *buf);
ssize_t store_iwmct_log_level_fw(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count);
#else
#define LOG_CRITICAL(priv, src, fmt, args...)
#define LOG_ERROR(priv, src, fmt, args...)
#define LOG_WARNING(priv, src, fmt, args...)
#define LOG_INFO(priv, src, fmt, args...)
#define LOG_TRACE(priv, src, fmt, args...)
#define LOG_HEXDUMP(src, ptr, len)
static inline void iwmct_log_top_message(struct iwmct_priv *priv,
u8 *buf, int len) {}
static inline int iwmct_log_set_filter(u8 src, u8 logmask) { return 0; }
static inline int iwmct_log_set_fw_filter(u8 src, u8 logmask) { return 0; }
#endif /* CONFIG_IWMC3200TOP_DEBUG */
int log_get_filter_str(char *buf, int size);
int log_get_fw_filter_str(char *buf, int size);
#endif /* __LOG_H__ */
drivers/misc/iwmc3200top/main.c 已删除 100644 → 0
浏览文件 @ 5da7b2e0
/*
* iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
* drivers/misc/iwmc3200top/main.c
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
* 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 distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
* -
*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/debugfs.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio.h>
#include "iwmc3200top.h"
#include "log.h"
#include "fw-msg.h"
#include "debugfs.h"
#define DRIVER_DESCRIPTION "Intel(R) IWMC 3200 Top Driver"
#define DRIVER_COPYRIGHT "Copyright (c) 2008 Intel Corporation."
#define DRIVER_VERSION "0.1.62"
MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
MODULE_AUTHOR(DRIVER_COPYRIGHT);
MODULE_FIRMWARE(FW_NAME(FW_API_VER));
static inline int __iwmct_tx(struct iwmct_priv *priv, void *src, int count)
{
return sdio_memcpy_toio(priv->func, IWMC_SDIO_DATA_ADDR, src, count);
}
int iwmct_tx(struct iwmct_priv *priv, void *src, int count)
{
int ret;
sdio_claim_host(priv->func);
ret = __iwmct_tx(priv, src, count);
sdio_release_host(priv->func);
return ret;
}
/*
* This workers main task is to wait for OP_OPR_ALIVE
* from TOP FW until ALIVE_MSG_TIMOUT timeout is elapsed.
* When OP_OPR_ALIVE received it will issue
* a call to "bus_rescan_devices".
*/
static void iwmct_rescan_worker(struct work_struct *ws)
{
struct iwmct_priv *priv;
int ret;
priv = container_of(ws, struct iwmct_priv, bus_rescan_worker);
LOG_INFO(priv, FW_MSG, "Calling bus_rescan\n");
ret = bus_rescan_devices(priv->func->dev.bus);
if (ret < 0)
LOG_INFO(priv, INIT, "bus_rescan_devices FAILED!!!\n");
}
static void op_top_message(struct iwmct_priv *priv, struct top_msg *msg)
{
switch (msg->hdr.opcode) {
case OP_OPR_ALIVE:
LOG_INFO(priv, FW_MSG, "Got ALIVE from device, wake rescan\n");
schedule_work(&priv->bus_rescan_worker);
break;
default:
LOG_INFO(priv, FW_MSG, "Received msg opcode 0x%X\n",
msg->hdr.opcode);
break;
}
}
static void handle_top_message(struct iwmct_priv *priv, u8 *buf, int len)
{
struct top_msg *msg;
msg = (struct top_msg *)buf;
if (msg->hdr.type != COMM_TYPE_D2H) {
LOG_ERROR(priv, FW_MSG,
"Message from TOP with invalid message type 0x%X\n",
msg->hdr.type);
return;
}
if (len < sizeof(msg->hdr)) {
LOG_ERROR(priv, FW_MSG,
"Message from TOP is too short for message header "
"received %d bytes, expected at least %zd bytes\n",
len, sizeof(msg->hdr));
return;
}
if (len < le16_to_cpu(msg->hdr.length) + sizeof(msg->hdr)) {
LOG_ERROR(priv, FW_MSG,
"Message length (%d bytes) is shorter than "
"in header (%d bytes)\n",
len, le16_to_cpu(msg->hdr.length));
return;
}
switch (msg->hdr.category) {
case COMM_CATEGORY_OPERATIONAL:
op_top_message(priv, (struct top_msg *)buf);
break;
case COMM_CATEGORY_DEBUG:
case COMM_CATEGORY_TESTABILITY:
case COMM_CATEGORY_DIAGNOSTICS:
iwmct_log_top_message(priv, buf, len);
break;
default:
LOG_ERROR(priv, FW_MSG,
"Message from TOP with unknown category 0x%X\n",
msg->hdr.category);
break;
}
}
int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len)
{
int ret;
u8 *buf;
LOG_TRACE(priv, FW_MSG, "Sending hcmd:\n");
/* add padding to 256 for IWMC */
((struct top_msg *)cmd)->hdr.flags |= CMD_FLAG_PADDING_256;
LOG_HEXDUMP(FW_MSG, cmd, len);
if (len > FW_HCMD_BLOCK_SIZE) {
LOG_ERROR(priv, FW_MSG, "size %d exceeded hcmd max size %d\n",
len, FW_HCMD_BLOCK_SIZE);
return -1;
}
buf = kzalloc(FW_HCMD_BLOCK_SIZE, GFP_KERNEL);
if (!buf) {
LOG_ERROR(priv, FW_MSG, "kzalloc error, buf size %d\n",
FW_HCMD_BLOCK_SIZE);
return -1;
}
memcpy(buf, cmd, len);
ret = iwmct_tx(priv, buf, FW_HCMD_BLOCK_SIZE);
kfree(buf);
return ret;
}
static void iwmct_irq_read_worker(struct work_struct *ws)
{
struct iwmct_priv *priv;
struct iwmct_work_struct *read_req;
__le32 *buf = NULL;
int ret;
int iosize;
u32 barker;
bool is_barker;
priv = container_of(ws, struct iwmct_priv, isr_worker);
LOG_TRACE(priv, IRQ, "enter iwmct_irq_read_worker %p\n", ws);
/* --------------------- Handshake with device -------------------- */
sdio_claim_host(priv->func);
/* all list manipulations have to be protected by
* sdio_claim_host/sdio_release_host */
if (list_empty(&priv->read_req_list)) {
LOG_ERROR(priv, IRQ, "read_req_list empty in read worker\n");
goto exit_release;
}
read_req = list_entry(priv->read_req_list.next,
struct iwmct_work_struct, list);
list_del(&read_req->list);
iosize = read_req->iosize;
kfree(read_req);
buf = kzalloc(iosize, GFP_KERNEL);
if (!buf) {
LOG_ERROR(priv, IRQ, "kzalloc error, buf size %d\n", iosize);
goto exit_release;
}
LOG_INFO(priv, IRQ, "iosize=%d, buf=%p, func=%d\n",
iosize, buf, priv->func->num);
/* read from device */
ret = sdio_memcpy_fromio(priv->func, buf, IWMC_SDIO_DATA_ADDR, iosize);
if (ret) {
LOG_ERROR(priv, IRQ, "error %d reading buffer\n", ret);
goto exit_release;
}
LOG_HEXDUMP(IRQ, (u8 *)buf, iosize);
barker = le32_to_cpu(buf[0]);
/* Verify whether it's a barker and if not - treat as regular Rx */
if (barker == IWMC_BARKER_ACK ||
(barker & BARKER_DNLOAD_BARKER_MSK) == IWMC_BARKER_REBOOT) {
/* Valid Barker is equal on first 4 dwords */
is_barker = (buf[1] == buf[0]) &&
(buf[2] == buf[0]) &&
(buf[3] == buf[0]);
if (!is_barker) {
LOG_WARNING(priv, IRQ,
"Potentially inconsistent barker "
"%08X_%08X_%08X_%08X\n",
le32_to_cpu(buf[0]), le32_to_cpu(buf[1]),
le32_to_cpu(buf[2]), le32_to_cpu(buf[3]));
}
} else {
is_barker = false;
}
/* Handle Top CommHub message */
if (!is_barker) {
sdio_release_host(priv->func);
handle_top_message(priv, (u8 *)buf, iosize);
goto exit;
} else if (barker == IWMC_BARKER_ACK) { /* Handle barkers */
if (atomic_read(&priv->dev_sync) == 0) {
LOG_ERROR(priv, IRQ,
"ACK barker arrived out-of-sync\n");
goto exit_release;
}
/* Continuing to FW download (after Sync is completed)*/
atomic_set(&priv->dev_sync, 0);
LOG_INFO(priv, IRQ, "ACK barker arrived "
"- starting FW download\n");
} else { /* REBOOT barker */
LOG_INFO(priv, IRQ, "Received reboot barker: %x\n", barker);
priv->barker = barker;
if (barker & BARKER_DNLOAD_SYNC_MSK) {
/* Send the same barker back */
ret = __iwmct_tx(priv, buf, iosize);
if (ret) {
LOG_ERROR(priv, IRQ,
"error %d echoing barker\n", ret);
goto exit_release;
}
LOG_INFO(priv, IRQ, "Echoing barker to device\n");
atomic_set(&priv->dev_sync, 1);
goto exit_release;
}
/* Continuing to FW download (without Sync) */
LOG_INFO(priv, IRQ, "No sync requested "
"- starting FW download\n");
}
sdio_release_host(priv->func);
if (priv->dbg.fw_download)
iwmct_fw_load(priv);
else
LOG_ERROR(priv, IRQ, "FW download not allowed\n");
goto exit;
exit_release:
sdio_release_host(priv->func);
exit:
kfree(buf);
LOG_TRACE(priv, IRQ, "exit iwmct_irq_read_worker\n");
}
static void iwmct_irq(struct sdio_func *func)
{
struct iwmct_priv *priv;
int val, ret;
int iosize;
int addr = IWMC_SDIO_INTR_GET_SIZE_ADDR;
struct iwmct_work_struct *read_req;
priv = sdio_get_drvdata(func);
LOG_TRACE(priv, IRQ, "enter iwmct_irq\n");
/* read the function's status register */
val = sdio_readb(func, IWMC_SDIO_INTR_STATUS_ADDR, &ret);
LOG_TRACE(priv, IRQ, "iir value = %d, ret=%d\n", val, ret);
if (!val) {
LOG_ERROR(priv, IRQ, "iir = 0, exiting ISR\n");
goto exit_clear_intr;
}
/*
* read 2 bytes of the transaction size
* IMPORTANT: sdio transaction size has to be read before clearing
* sdio interrupt!!!
*/
val = sdio_readb(priv->func, addr++, &ret);
iosize = val;
val = sdio_readb(priv->func, addr++, &ret);
iosize += val << 8;
LOG_INFO(priv, IRQ, "READ size %d\n", iosize);
if (iosize == 0) {
LOG_ERROR(priv, IRQ, "READ size %d, exiting ISR\n", iosize);
goto exit_clear_intr;
}
/* allocate a work structure to pass iosize to the worker */
read_req = kzalloc(sizeof(struct iwmct_work_struct), GFP_KERNEL);
if (!read_req) {
LOG_ERROR(priv, IRQ, "failed to allocate read_req, exit ISR\n");
goto exit_clear_intr;
}
INIT_LIST_HEAD(&read_req->list);
read_req->iosize = iosize;
list_add_tail(&priv->read_req_list, &read_req->list);
/* clear the function's interrupt request bit (write 1 to clear) */
sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
schedule_work(&priv->isr_worker);
LOG_TRACE(priv, IRQ, "exit iwmct_irq\n");
return;
exit_clear_intr:
/* clear the function's interrupt request bit (write 1 to clear) */
sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
}
static int blocks;
module_param(blocks, int, 0604);
MODULE_PARM_DESC(blocks, "max_blocks_to_send");
static bool dump;
module_param(dump, bool, 0604);
MODULE_PARM_DESC(dump, "dump_hex_content");
static bool jump = 1;
module_param(jump, bool, 0604);
static bool direct = 1;
module_param(direct, bool, 0604);
static bool checksum = 1;
module_param(checksum, bool, 0604);
static bool fw_download = 1;
module_param(fw_download, bool, 0604);
static int block_size = IWMC_SDIO_BLK_SIZE;
module_param(block_size, int, 0404);
static int download_trans_blks = IWMC_DEFAULT_TR_BLK;
module_param(download_trans_blks, int, 0604);
static bool rubbish_barker;
module_param(rubbish_barker, bool, 0604);
#ifdef CONFIG_IWMC3200TOP_DEBUG
static int log_level[LOG_SRC_MAX];
static unsigned int log_level_argc;
module_param_array(log_level, int, &log_level_argc, 0604);
MODULE_PARM_DESC(log_level, "log_level");
static int log_level_fw[FW_LOG_SRC_MAX];
static unsigned int log_level_fw_argc;
module_param_array(log_level_fw, int, &log_level_fw_argc, 0604);
MODULE_PARM_DESC(log_level_fw, "log_level_fw");
#endif
void iwmct_dbg_init_params(struct iwmct_priv *priv)
{
#ifdef CONFIG_IWMC3200TOP_DEBUG
int i;
for (i = 0; i < log_level_argc; i++) {
dev_notice(&priv->func->dev, "log_level[%d]=0x%X\n",
i, log_level[i]);
iwmct_log_set_filter((log_level[i] >> 8) & 0xFF,
log_level[i] & 0xFF);
}
for (i = 0; i < log_level_fw_argc; i++) {
dev_notice(&priv->func->dev, "log_level_fw[%d]=0x%X\n",
i, log_level_fw[i]);
iwmct_log_set_fw_filter((log_level_fw[i] >> 8) & 0xFF,
log_level_fw[i] & 0xFF);
}
#endif
priv->dbg.blocks = blocks;
LOG_INFO(priv, INIT, "blocks=%d\n", blocks);
priv->dbg.dump = (bool)dump;
LOG_INFO(priv, INIT, "dump=%d\n", dump);
priv->dbg.jump = (bool)jump;
LOG_INFO(priv, INIT, "jump=%d\n", jump);
priv->dbg.direct = (bool)direct;
LOG_INFO(priv, INIT, "direct=%d\n", direct);
priv->dbg.checksum = (bool)checksum;
LOG_INFO(priv, INIT, "checksum=%d\n", checksum);
priv->dbg.fw_download = (bool)fw_download;
LOG_INFO(priv, INIT, "fw_download=%d\n", fw_download);
priv->dbg.block_size = block_size;
LOG_INFO(priv, INIT, "block_size=%d\n", block_size);
priv->dbg.download_trans_blks = download_trans_blks;
LOG_INFO(priv, INIT, "download_trans_blks=%d\n", download_trans_blks);
}
/*****************************************************************************
*
* sysfs attributes
*
*****************************************************************************/
static ssize_t show_iwmct_fw_version(struct device *d,
struct device_attribute *attr, char *buf)
{
struct iwmct_priv *priv = dev_get_drvdata(d);
return sprintf(buf, "%s\n", priv->dbg.label_fw);
}
static DEVICE_ATTR(cc_label_fw, S_IRUGO, show_iwmct_fw_version, NULL);
#ifdef CONFIG_IWMC3200TOP_DEBUG
static DEVICE_ATTR(log_level, S_IWUSR | S_IRUGO,
show_iwmct_log_level, store_iwmct_log_level);
static DEVICE_ATTR(log_level_fw, S_IWUSR | S_IRUGO,
show_iwmct_log_level_fw, store_iwmct_log_level_fw);
#endif
static struct attribute *iwmct_sysfs_entries[] = {
&dev_attr_cc_label_fw.attr,
#ifdef CONFIG_IWMC3200TOP_DEBUG
&dev_attr_log_level.attr,
&dev_attr_log_level_fw.attr,
#endif
NULL
};
static struct attribute_group iwmct_attribute_group = {
.name = NULL, /* put in device directory */
.attrs = iwmct_sysfs_entries,
};
static int iwmct_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
struct iwmct_priv *priv;
int ret;
int val = 1;
int addr = IWMC_SDIO_INTR_ENABLE_ADDR;
dev_dbg(&func->dev, "enter iwmct_probe\n");
dev_dbg(&func->dev, "IRQ polling period id %u msecs, HZ is %d\n",
jiffies_to_msecs(2147483647), HZ);
priv = kzalloc(sizeof(struct iwmct_priv), GFP_KERNEL);
if (!priv) {
dev_err(&func->dev, "kzalloc error\n");
return -ENOMEM;
}
priv->func = func;
sdio_set_drvdata(func, priv);
INIT_WORK(&priv->bus_rescan_worker, iwmct_rescan_worker);
INIT_WORK(&priv->isr_worker, iwmct_irq_read_worker);
init_waitqueue_head(&priv->wait_q);
sdio_claim_host(func);
/* FIXME: Remove after it is fixed in the Boot ROM upgrade */
func->enable_timeout = 10;
/* In our HW, setting the block size also wakes up the boot rom. */
ret = sdio_set_block_size(func, priv->dbg.block_size);
if (ret) {
LOG_ERROR(priv, INIT,
"sdio_set_block_size() failure: %d\n", ret);
goto error_sdio_enable;
}
ret = sdio_enable_func(func);
if (ret) {
LOG_ERROR(priv, INIT, "sdio_enable_func() failure: %d\n", ret);
goto error_sdio_enable;
}
/* init reset and dev_sync states */
atomic_set(&priv->reset, 0);
atomic_set(&priv->dev_sync, 0);
/* init read req queue */
INIT_LIST_HEAD(&priv->read_req_list);
/* process configurable parameters */
iwmct_dbg_init_params(priv);
ret = sysfs_create_group(&func->dev.kobj, &iwmct_attribute_group);
if (ret) {
LOG_ERROR(priv, INIT, "Failed to register attributes and "
"initialize module_params\n");
goto error_dev_attrs;
}
iwmct_dbgfs_register(priv, DRV_NAME);
if (!priv->dbg.direct && priv->dbg.download_trans_blks > 8) {
LOG_INFO(priv, INIT,
"Reducing transaction to 8 blocks = 2K (from %d)\n",
priv->dbg.download_trans_blks);
priv->dbg.download_trans_blks = 8;
}
priv->trans_len = priv->dbg.download_trans_blks * priv->dbg.block_size;
LOG_INFO(priv, INIT, "Transaction length = %d\n", priv->trans_len);
ret = sdio_claim_irq(func, iwmct_irq);
if (ret) {
LOG_ERROR(priv, INIT, "sdio_claim_irq() failure: %d\n", ret);
goto error_claim_irq;
}
/* Enable function's interrupt */
sdio_writeb(priv->func, val, addr, &ret);
if (ret) {
LOG_ERROR(priv, INIT, "Failure writing to "
"Interrupt Enable Register (%d): %d\n", addr, ret);
goto error_enable_int;
}
sdio_release_host(func);
LOG_INFO(priv, INIT, "exit iwmct_probe\n");
return ret;
error_enable_int:
sdio_release_irq(func);
error_claim_irq:
sdio_disable_func(func);
error_dev_attrs:
iwmct_dbgfs_unregister(priv->dbgfs);
sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
error_sdio_enable:
sdio_release_host(func);
return ret;
}
static void iwmct_remove(struct sdio_func *func)
{
struct iwmct_work_struct *read_req;
struct iwmct_priv *priv = sdio_get_drvdata(func);
LOG_INFO(priv, INIT, "enter\n");
sdio_claim_host(func);
sdio_release_irq(func);
sdio_release_host(func);
/* Make sure works are finished */
flush_work_sync(&priv->bus_rescan_worker);
flush_work_sync(&priv->isr_worker);
sdio_claim_host(func);
sdio_disable_func(func);
sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
iwmct_dbgfs_unregister(priv->dbgfs);
sdio_release_host(func);
/* free read requests */
while (!list_empty(&priv->read_req_list)) {
read_req = list_entry(priv->read_req_list.next,
struct iwmct_work_struct, list);
list_del(&read_req->list);
kfree(read_req);
}
kfree(priv);
}
static const struct sdio_device_id iwmct_ids[] = {
/* Intel Wireless MultiCom 3200 Top Driver */
{ SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, 0x1404)},
{ }, /* Terminating entry */
};
MODULE_DEVICE_TABLE(sdio, iwmct_ids);
static struct sdio_driver iwmct_driver = {
.probe = iwmct_probe,
.remove = iwmct_remove,
.name = DRV_NAME,
.id_table = iwmct_ids,
};
static int __init iwmct_init(void)
{
int rc;
/* Default log filter settings */
iwmct_log_set_filter(LOG_SRC_ALL, LOG_SEV_FILTER_RUNTIME);
iwmct_log_set_filter(LOG_SRC_FW_MSG, LOG_SEV_FW_FILTER_ALL);
iwmct_log_set_fw_filter(LOG_SRC_ALL, FW_LOG_SEV_FILTER_RUNTIME);
rc = sdio_register_driver(&iwmct_driver);
return rc;
}
static void __exit iwmct_exit(void)
{
sdio_unregister_driver(&iwmct_driver);
}
module_init(iwmct_init);
module_exit(iwmct_exit);
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