From: Wey-Yi Guy Date: Fri, 2 Dec 2011 16:48:36 +0000 (-0800) Subject: iwlwifi: Rename file name from iwl-sv-open.c to iwl-testmode.c X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6d5f3ec52939607511a660b01fc34d11ad71ae24;p=openwrt%2Fstaging%2Fblogic.git iwlwifi: Rename file name from iwl-sv-open.c to iwl-testmode.c The file dealing with all the operations through testmode, rename it. Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index a7ab280994c8..5a052a5e4fb6 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -18,7 +18,7 @@ iwlwifi-objs += iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o iwlwifi-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o -iwlwifi-$(CONFIG_IWLWIFI_DEVICE_SVTOOL) += iwl-sv-open.o +iwlwifi-$(CONFIG_IWLWIFI_DEVICE_SVTOOL) += iwl-testmode.o CFLAGS_iwl-devtrace.o := -I$(src) diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c deleted file mode 100644 index 3c9762628760..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c +++ /dev/null @@ -1,925 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License 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, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * Contact Information: - * Intel Linux Wireless - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "iwl-dev.h" -#include "iwl-core.h" -#include "iwl-debug.h" -#include "iwl-io.h" -#include "iwl-agn.h" -#include "iwl-testmode.h" -#include "iwl-trans.h" - -/* The TLVs used in the gnl message policy between the kernel module and - * user space application. iwl_testmode_gnl_msg_policy is to be carried - * through the NL80211_CMD_TESTMODE channel regulated by nl80211. - * See iwl-testmode.h - */ -static -struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { - [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, }, - [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, }, - [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, }, - [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, - - [IWL_TM_ATTR_SRAM_ADDR] = { .type = NLA_U32, }, - [IWL_TM_ATTR_SRAM_SIZE] = { .type = NLA_U32, }, - [IWL_TM_ATTR_SRAM_DUMP] = { .type = NLA_UNSPEC, }, -}; - -/* - * See the struct iwl_rx_packet in iwl-commands.h for the format of the - * received events from the device - */ -static inline int get_event_length(struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - if (pkt) - return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - else - return 0; -} - - -/* - * This function multicasts the spontaneous messages from the device to the - * user space. It is invoked whenever there is a received messages - * from the device. This function is called within the ISR of the rx handlers - * in iwlagn driver. - * - * The parsing of the message content is left to the user space application, - * The message content is treated as unattacked raw data and is encapsulated - * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space. - * - * @priv: the instance of iwlwifi device - * @rxb: pointer to rx data content received by the ISR - * - * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[]. - * For the messages multicasting to the user application, the mandatory - * TLV fields are : - * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT - * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content - */ - -static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct ieee80211_hw *hw = priv->hw; - struct sk_buff *skb; - void *data; - int length; - - data = (void *)rxb_addr(rxb); - length = get_event_length(rxb); - - if (!data || length == 0) - return; - - skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length, - GFP_ATOMIC); - if (skb == NULL) { - IWL_DEBUG_INFO(priv, - "Run out of memory for messages to user space ?\n"); - return; - } - NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT); - NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data); - cfg80211_testmode_event(skb, GFP_ATOMIC); - return; - -nla_put_failure: - kfree_skb(skb); - IWL_DEBUG_INFO(priv, "Ouch, overran buffer, check allocation!\n"); -} - -void iwl_testmode_init(struct iwl_priv *priv) -{ - priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; - priv->testmode_trace.trace_enabled = false; - priv->testmode_sram.sram_readed = false; -} - -static void iwl_sram_cleanup(struct iwl_priv *priv) -{ - if (priv->testmode_sram.sram_readed) { - kfree(priv->testmode_sram.buff_addr); - priv->testmode_sram.buff_addr = NULL; - priv->testmode_sram.buff_size = 0; - priv->testmode_sram.num_chunks = 0; - priv->testmode_sram.sram_readed = false; - } -} - -static void iwl_trace_cleanup(struct iwl_priv *priv) -{ - if (priv->testmode_trace.trace_enabled) { - if (priv->testmode_trace.cpu_addr && - priv->testmode_trace.dma_addr) - dma_free_coherent(bus(priv)->dev, - priv->testmode_trace.total_size, - priv->testmode_trace.cpu_addr, - priv->testmode_trace.dma_addr); - priv->testmode_trace.trace_enabled = false; - priv->testmode_trace.cpu_addr = NULL; - priv->testmode_trace.trace_addr = NULL; - priv->testmode_trace.dma_addr = 0; - priv->testmode_trace.buff_size = 0; - priv->testmode_trace.total_size = 0; - } -} - - -void iwl_testmode_cleanup(struct iwl_priv *priv) -{ - iwl_trace_cleanup(priv); - iwl_sram_cleanup(priv); -} - -/* - * This function handles the user application commands to the ucode. - * - * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and - * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the - * host command to the ucode. - * - * If any mandatory field is missing, -ENOMSG is replied to the user space - * application; otherwise, the actual execution result of the host command to - * ucode is replied. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - struct iwl_host_cmd cmd; - - memset(&cmd, 0, sizeof(struct iwl_host_cmd)); - - if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || - !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { - IWL_DEBUG_INFO(priv, - "Error finding ucode command mandatory fields\n"); - return -ENOMSG; - } - - cmd.flags = CMD_ON_DEMAND; - cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); - cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); - cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); - cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; - IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," - " len %d\n", cmd.id, cmd.flags, cmd.len[0]); - /* ok, let's submit the command to ucode */ - return iwl_trans_send_cmd(trans(priv), &cmd); -} - - -/* - * This function handles the user application commands for register access. - * - * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the - * handlers respectively. - * - * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the - * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32, - * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating - * the success of the command execution. - * - * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read - * value is returned with IWL_TM_ATTR_REG_VALUE32. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - u32 ofs, val32; - u8 val8; - struct sk_buff *skb; - int status = 0; - - if (!tb[IWL_TM_ATTR_REG_OFFSET]) { - IWL_DEBUG_INFO(priv, "Error finding register offset\n"); - return -ENOMSG; - } - ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); - IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs); - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - val32 = iwl_read32(bus(priv), ofs); - IWL_INFO(priv, "32bit value to read 0x%x\n", val32); - - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); - if (!skb) { - IWL_DEBUG_INFO(priv, "Error allocating memory\n"); - return -ENOMEM; - } - NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_DEBUG_INFO(priv, - "Error sending msg : %d\n", status); - break; - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - if (!tb[IWL_TM_ATTR_REG_VALUE32]) { - IWL_DEBUG_INFO(priv, - "Error finding value to write\n"); - return -ENOMSG; - } else { - val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); - IWL_INFO(priv, "32bit value to write 0x%x\n", val32); - iwl_write32(bus(priv), ofs, val32); - } - break; - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - if (!tb[IWL_TM_ATTR_REG_VALUE8]) { - IWL_DEBUG_INFO(priv, "Error finding value to write\n"); - return -ENOMSG; - } else { - val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); - IWL_INFO(priv, "8bit value to write 0x%x\n", val8); - iwl_write8(bus(priv), ofs, val8); - } - break; - case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32: - val32 = iwl_read_prph(bus(priv), ofs); - IWL_INFO(priv, "32bit value to read 0x%x\n", val32); - - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); - if (!skb) { - IWL_DEBUG_INFO(priv, "Error allocating memory\n"); - return -ENOMEM; - } - NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_DEBUG_INFO(priv, - "Error sending msg : %d\n", status); - break; - case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32: - if (!tb[IWL_TM_ATTR_REG_VALUE32]) { - IWL_DEBUG_INFO(priv, - "Error finding value to write\n"); - return -ENOMSG; - } else { - val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); - IWL_INFO(priv, "32bit value to write 0x%x\n", val32); - iwl_write_prph(bus(priv), ofs, val32); - } - break; - default: - IWL_DEBUG_INFO(priv, "Unknown testmode register command ID\n"); - return -ENOSYS; - } - - return status; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - - -static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) -{ - struct iwl_notification_wait calib_wait; - int ret; - - iwlagn_init_notification_wait(priv, &calib_wait, - CALIBRATION_COMPLETE_NOTIFICATION, - NULL, NULL); - ret = iwlagn_init_alive_start(priv); - if (ret) { - IWL_DEBUG_INFO(priv, - "Error configuring init calibration: %d\n", ret); - goto cfg_init_calib_error; - } - - ret = iwlagn_wait_notification(priv, &calib_wait, 2 * HZ); - if (ret) - IWL_DEBUG_INFO(priv, "Error detecting" - " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); - return ret; - -cfg_init_calib_error: - iwlagn_remove_notification(priv, &calib_wait); - return ret; -} - -/* - * This function handles the user application commands for driver. - * - * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the - * handlers respectively. - * - * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned - * value of the actual command execution is replied to the user application. - * - * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP - * is used for carry the message while IWL_TM_ATTR_COMMAND must set to - * IWL_TM_CMD_DEV2APP_SYNC_RSP. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - struct sk_buff *skb; - unsigned char *rsp_data_ptr = NULL; - int status = 0, rsp_data_len = 0; - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: - rsp_data_ptr = (unsigned char *)priv->cfg->name; - rsp_data_len = strlen(priv->cfg->name); - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, - rsp_data_len + 20); - if (!skb) { - IWL_DEBUG_INFO(priv, - "Error allocating memory\n"); - return -ENOMEM; - } - NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_SYNC_RSP); - NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP, - rsp_data_len, rsp_data_ptr); - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_DEBUG_INFO(priv, "Error sending msg : %d\n", - status); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: - status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_INIT); - if (status) - IWL_DEBUG_INFO(priv, - "Error loading init ucode: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: - iwl_testmode_cfg_init_calib(priv); - iwl_trans_stop_device(trans(priv)); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: - status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); - if (status) { - IWL_DEBUG_INFO(priv, - "Error loading runtime ucode: %d\n", status); - break; - } - status = iwl_alive_start(priv); - if (status) - IWL_DEBUG_INFO(priv, - "Error starting the device: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: - iwl_scan_cancel_timeout(priv, 200); - iwl_trans_stop_device(trans(priv)); - status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); - if (status) { - IWL_DEBUG_INFO(priv, - "Error loading WOWLAN ucode: %d\n", status); - break; - } - status = iwl_alive_start(priv); - if (status) - IWL_DEBUG_INFO(priv, - "Error starting the device: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_GET_EEPROM: - if (priv->eeprom) { - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, - priv->cfg->base_params->eeprom_size + 20); - if (!skb) { - IWL_DEBUG_INFO(priv, - "Error allocating memory\n"); - return -ENOMEM; - } - NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_EEPROM_RSP); - NLA_PUT(skb, IWL_TM_ATTR_EEPROM, - priv->cfg->base_params->eeprom_size, - priv->eeprom); - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_DEBUG_INFO(priv, - "Error sending msg : %d\n", - status); - } else - return -EFAULT; - break; - - case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: - if (!tb[IWL_TM_ATTR_FIXRATE]) { - IWL_DEBUG_INFO(priv, - "Error finding fixrate setting\n"); - return -ENOMSG; - } - priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); - break; - - default: - IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n"); - return -ENOSYS; - } - return status; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - - -/* - * This function handles the user application commands for uCode trace - * - * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the - * handlers respectively. - * - * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned - * value of the actual command execution is replied to the user application. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - struct sk_buff *skb; - int status = 0; - struct device *dev = bus(priv)->dev; - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: - if (priv->testmode_trace.trace_enabled) - return -EBUSY; - - if (!tb[IWL_TM_ATTR_TRACE_SIZE]) - priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF; - else - priv->testmode_trace.buff_size = - nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); - if (!priv->testmode_trace.buff_size) - return -EINVAL; - if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN || - priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX) - return -EINVAL; - - priv->testmode_trace.total_size = - priv->testmode_trace.buff_size + TRACE_BUFF_PADD; - priv->testmode_trace.cpu_addr = - dma_alloc_coherent(dev, - priv->testmode_trace.total_size, - &priv->testmode_trace.dma_addr, - GFP_KERNEL); - if (!priv->testmode_trace.cpu_addr) - return -ENOMEM; - priv->testmode_trace.trace_enabled = true; - priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN( - priv->testmode_trace.cpu_addr, 0x100); - memset(priv->testmode_trace.trace_addr, 0x03B, - priv->testmode_trace.buff_size); - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, - sizeof(priv->testmode_trace.dma_addr) + 20); - if (!skb) { - IWL_DEBUG_INFO(priv, - "Error allocating memory\n"); - iwl_trace_cleanup(priv); - return -ENOMEM; - } - NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR, - sizeof(priv->testmode_trace.dma_addr), - (u64 *)&priv->testmode_trace.dma_addr); - status = cfg80211_testmode_reply(skb); - if (status < 0) { - IWL_DEBUG_INFO(priv, - "Error sending msg : %d\n", - status); - } - priv->testmode_trace.num_chunks = - DIV_ROUND_UP(priv->testmode_trace.buff_size, - DUMP_CHUNK_SIZE); - break; - - case IWL_TM_CMD_APP2DEV_END_TRACE: - iwl_trace_cleanup(priv); - break; - default: - IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n"); - return -ENOSYS; - } - return status; - -nla_put_failure: - kfree_skb(skb); - if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == - IWL_TM_CMD_APP2DEV_BEGIN_TRACE) - iwl_trace_cleanup(priv); - return -EMSGSIZE; -} - -static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb, - struct sk_buff *skb, - struct netlink_callback *cb) -{ - struct iwl_priv *priv = hw->priv; - int idx, length; - - if (priv->testmode_trace.trace_enabled && - priv->testmode_trace.trace_addr) { - idx = cb->args[4]; - if (idx >= priv->testmode_trace.num_chunks) - return -ENOENT; - length = DUMP_CHUNK_SIZE; - if (((idx + 1) == priv->testmode_trace.num_chunks) && - (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE)) - length = priv->testmode_trace.buff_size % - DUMP_CHUNK_SIZE; - - NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length, - priv->testmode_trace.trace_addr + - (DUMP_CHUNK_SIZE * idx)); - idx++; - cb->args[4] = idx; - return 0; - } else - return -EFAULT; - - nla_put_failure: - return -ENOBUFS; -} - -/* - * This function handles the user application switch ucode ownership. - * - * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and - * decide who the current owner of the uCode - * - * If the current owner is OWNERSHIP_TM, then the only host command - * can deliver to uCode is from testmode, all the other host commands - * will dropped. - * - * default driver is the owner of uCode in normal operational mode - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - u8 owner; - - if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { - IWL_DEBUG_INFO(priv, "Error finding ucode owner\n"); - return -ENOMSG; - } - - owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); - if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM)) - priv->shrd->ucode_owner = owner; - else { - IWL_DEBUG_INFO(priv, "Invalid owner\n"); - return -EINVAL; - } - return 0; -} - -/* - * This function handles the user application commands for SRAM data dump - * - * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and - * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading - * - * Several error will be retured, -EBUSY if the SRAM data retrieved by - * previous command has not been delivered to userspace, or -ENOMSG if - * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE) - * are missing, or -ENOMEM if the buffer allocation fails. - * - * Otherwise 0 is replied indicating the success of the SRAM reading. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_sram(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = hw->priv; - u32 base, ofs, size, maxsize; - - if (priv->testmode_sram.sram_readed) - return -EBUSY; - - if (!tb[IWL_TM_ATTR_SRAM_ADDR]) { - IWL_DEBUG_INFO(priv, "Error finding SRAM offset address\n"); - return -ENOMSG; - } - ofs = nla_get_u32(tb[IWL_TM_ATTR_SRAM_ADDR]); - if (!tb[IWL_TM_ATTR_SRAM_SIZE]) { - IWL_DEBUG_INFO(priv, "Error finding size for SRAM reading\n"); - return -ENOMSG; - } - size = nla_get_u32(tb[IWL_TM_ATTR_SRAM_SIZE]); - switch (priv->ucode_type) { - case IWL_UCODE_REGULAR: - maxsize = trans(priv)->ucode_rt.data.len; - break; - case IWL_UCODE_INIT: - maxsize = trans(priv)->ucode_init.data.len; - break; - case IWL_UCODE_WOWLAN: - maxsize = trans(priv)->ucode_wowlan.data.len; - break; - case IWL_UCODE_NONE: - IWL_DEBUG_INFO(priv, "Error, uCode does not been loaded\n"); - return -ENOSYS; - default: - IWL_DEBUG_INFO(priv, "Error, unsupported uCode type\n"); - return -ENOSYS; - } - if ((ofs + size) > maxsize) { - IWL_DEBUG_INFO(priv, "Invalid offset/size: out of range\n"); - return -EINVAL; - } - priv->testmode_sram.buff_size = (size / 4) * 4; - priv->testmode_sram.buff_addr = - kmalloc(priv->testmode_sram.buff_size, GFP_KERNEL); - if (priv->testmode_sram.buff_addr == NULL) { - IWL_DEBUG_INFO(priv, "Error allocating memory\n"); - return -ENOMEM; - } - base = 0x800000; - _iwl_read_targ_mem_words(bus(priv), base + ofs, - priv->testmode_sram.buff_addr, - priv->testmode_sram.buff_size / 4); - priv->testmode_sram.num_chunks = - DIV_ROUND_UP(priv->testmode_sram.buff_size, DUMP_CHUNK_SIZE); - priv->testmode_sram.sram_readed = true; - return 0; -} - -static int iwl_testmode_sram_dump(struct ieee80211_hw *hw, struct nlattr **tb, - struct sk_buff *skb, - struct netlink_callback *cb) -{ - struct iwl_priv *priv = hw->priv; - int idx, length; - - if (priv->testmode_sram.sram_readed) { - idx = cb->args[4]; - if (idx >= priv->testmode_sram.num_chunks) { - iwl_sram_cleanup(priv); - return -ENOENT; - } - length = DUMP_CHUNK_SIZE; - if (((idx + 1) == priv->testmode_sram.num_chunks) && - (priv->testmode_sram.buff_size % DUMP_CHUNK_SIZE)) - length = priv->testmode_sram.buff_size % - DUMP_CHUNK_SIZE; - - NLA_PUT(skb, IWL_TM_ATTR_SRAM_DUMP, length, - priv->testmode_sram.buff_addr + - (DUMP_CHUNK_SIZE * idx)); - idx++; - cb->args[4] = idx; - return 0; - } else - return -EFAULT; - - nla_put_failure: - return -ENOBUFS; -} - - -/* The testmode gnl message handler that takes the gnl message from the - * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then - * invoke the corresponding handlers. - * - * This function is invoked when there is user space application sending - * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated - * by nl80211. - * - * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before - * dispatching it to the corresponding handler. - * - * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; - * -ENOSYS is replied to the user application if the command is unknown; - * Otherwise, the command is dispatched to the respective handler. - * - * @hw: ieee80211_hw object that represents the device - * @data: pointer to user space message - * @len: length in byte of @data - */ -int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) -{ - struct nlattr *tb[IWL_TM_ATTR_MAX]; - struct iwl_priv *priv = hw->priv; - int result; - - result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, - iwl_testmode_gnl_msg_policy); - if (result != 0) { - IWL_DEBUG_INFO(priv, - "Error parsing the gnl message : %d\n", result); - return result; - } - - /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ - if (!tb[IWL_TM_ATTR_COMMAND]) { - IWL_DEBUG_INFO(priv, "Error finding testmode command type\n"); - return -ENOMSG; - } - /* in case multiple accesses to the device happens */ - mutex_lock(&priv->shrd->mutex); - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_UCODE: - IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n"); - result = iwl_testmode_ucode(hw, tb); - break; - case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32: - case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32: - IWL_DEBUG_INFO(priv, "testmode cmd to register\n"); - result = iwl_testmode_reg(hw, tb); - break; - case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: - case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: - case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: - case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: - case IWL_TM_CMD_APP2DEV_GET_EEPROM: - case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: - case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: - IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); - result = iwl_testmode_driver(hw, tb); - break; - - case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: - case IWL_TM_CMD_APP2DEV_END_TRACE: - case IWL_TM_CMD_APP2DEV_READ_TRACE: - IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n"); - result = iwl_testmode_trace(hw, tb); - break; - - case IWL_TM_CMD_APP2DEV_OWNERSHIP: - IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); - result = iwl_testmode_ownership(hw, tb); - break; - - case IWL_TM_CMD_APP2DEV_READ_SRAM: - IWL_DEBUG_INFO(priv, "testmode sram read cmd to driver\n"); - result = iwl_testmode_sram(hw, tb); - break; - - default: - IWL_DEBUG_INFO(priv, "Unknown testmode command\n"); - result = -ENOSYS; - break; - } - - mutex_unlock(&priv->shrd->mutex); - return result; -} - -int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, - struct netlink_callback *cb, - void *data, int len) -{ - struct nlattr *tb[IWL_TM_ATTR_MAX]; - struct iwl_priv *priv = hw->priv; - int result; - u32 cmd; - - if (cb->args[3]) { - /* offset by 1 since commands start at 0 */ - cmd = cb->args[3] - 1; - } else { - result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, - iwl_testmode_gnl_msg_policy); - if (result) { - IWL_DEBUG_INFO(priv, - "Error parsing the gnl message : %d\n", result); - return result; - } - - /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ - if (!tb[IWL_TM_ATTR_COMMAND]) { - IWL_DEBUG_INFO(priv, - "Error finding testmode command type\n"); - return -ENOMSG; - } - cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); - cb->args[3] = cmd + 1; - } - - /* in case multiple accesses to the device happens */ - mutex_lock(&priv->shrd->mutex); - switch (cmd) { - case IWL_TM_CMD_APP2DEV_READ_TRACE: - IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n"); - result = iwl_testmode_trace_dump(hw, tb, skb, cb); - break; - case IWL_TM_CMD_APP2DEV_DUMP_SRAM: - IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n"); - result = iwl_testmode_sram_dump(hw, tb, skb, cb); - break; - default: - result = -EINVAL; - break; - } - - mutex_unlock(&priv->shrd->mutex); - return result; -} diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.c b/drivers/net/wireless/iwlwifi/iwl-testmode.c new file mode 100644 index 000000000000..3c9762628760 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-testmode.c @@ -0,0 +1,925 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License 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, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "iwl-dev.h" +#include "iwl-core.h" +#include "iwl-debug.h" +#include "iwl-io.h" +#include "iwl-agn.h" +#include "iwl-testmode.h" +#include "iwl-trans.h" + +/* The TLVs used in the gnl message policy between the kernel module and + * user space application. iwl_testmode_gnl_msg_policy is to be carried + * through the NL80211_CMD_TESTMODE channel regulated by nl80211. + * See iwl-testmode.h + */ +static +struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { + [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, }, + + [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, }, + [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, }, + + [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, }, + [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, }, + [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, }, + + [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, }, + [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, }, + + [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, }, + + [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, }, + [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, }, + [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, }, + + [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, + + [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, + + [IWL_TM_ATTR_SRAM_ADDR] = { .type = NLA_U32, }, + [IWL_TM_ATTR_SRAM_SIZE] = { .type = NLA_U32, }, + [IWL_TM_ATTR_SRAM_DUMP] = { .type = NLA_UNSPEC, }, +}; + +/* + * See the struct iwl_rx_packet in iwl-commands.h for the format of the + * received events from the device + */ +static inline int get_event_length(struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + if (pkt) + return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + else + return 0; +} + + +/* + * This function multicasts the spontaneous messages from the device to the + * user space. It is invoked whenever there is a received messages + * from the device. This function is called within the ISR of the rx handlers + * in iwlagn driver. + * + * The parsing of the message content is left to the user space application, + * The message content is treated as unattacked raw data and is encapsulated + * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space. + * + * @priv: the instance of iwlwifi device + * @rxb: pointer to rx data content received by the ISR + * + * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[]. + * For the messages multicasting to the user application, the mandatory + * TLV fields are : + * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT + * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content + */ + +static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv, + struct iwl_rx_mem_buffer *rxb) +{ + struct ieee80211_hw *hw = priv->hw; + struct sk_buff *skb; + void *data; + int length; + + data = (void *)rxb_addr(rxb); + length = get_event_length(rxb); + + if (!data || length == 0) + return; + + skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length, + GFP_ATOMIC); + if (skb == NULL) { + IWL_DEBUG_INFO(priv, + "Run out of memory for messages to user space ?\n"); + return; + } + NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT); + NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data); + cfg80211_testmode_event(skb, GFP_ATOMIC); + return; + +nla_put_failure: + kfree_skb(skb); + IWL_DEBUG_INFO(priv, "Ouch, overran buffer, check allocation!\n"); +} + +void iwl_testmode_init(struct iwl_priv *priv) +{ + priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; + priv->testmode_trace.trace_enabled = false; + priv->testmode_sram.sram_readed = false; +} + +static void iwl_sram_cleanup(struct iwl_priv *priv) +{ + if (priv->testmode_sram.sram_readed) { + kfree(priv->testmode_sram.buff_addr); + priv->testmode_sram.buff_addr = NULL; + priv->testmode_sram.buff_size = 0; + priv->testmode_sram.num_chunks = 0; + priv->testmode_sram.sram_readed = false; + } +} + +static void iwl_trace_cleanup(struct iwl_priv *priv) +{ + if (priv->testmode_trace.trace_enabled) { + if (priv->testmode_trace.cpu_addr && + priv->testmode_trace.dma_addr) + dma_free_coherent(bus(priv)->dev, + priv->testmode_trace.total_size, + priv->testmode_trace.cpu_addr, + priv->testmode_trace.dma_addr); + priv->testmode_trace.trace_enabled = false; + priv->testmode_trace.cpu_addr = NULL; + priv->testmode_trace.trace_addr = NULL; + priv->testmode_trace.dma_addr = 0; + priv->testmode_trace.buff_size = 0; + priv->testmode_trace.total_size = 0; + } +} + + +void iwl_testmode_cleanup(struct iwl_priv *priv) +{ + iwl_trace_cleanup(priv); + iwl_sram_cleanup(priv); +} + +/* + * This function handles the user application commands to the ucode. + * + * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and + * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the + * host command to the ucode. + * + * If any mandatory field is missing, -ENOMSG is replied to the user space + * application; otherwise, the actual execution result of the host command to + * ucode is replied. + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + struct iwl_host_cmd cmd; + + memset(&cmd, 0, sizeof(struct iwl_host_cmd)); + + if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || + !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { + IWL_DEBUG_INFO(priv, + "Error finding ucode command mandatory fields\n"); + return -ENOMSG; + } + + cmd.flags = CMD_ON_DEMAND; + cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); + cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); + cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); + cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; + IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," + " len %d\n", cmd.id, cmd.flags, cmd.len[0]); + /* ok, let's submit the command to ucode */ + return iwl_trans_send_cmd(trans(priv), &cmd); +} + + +/* + * This function handles the user application commands for register access. + * + * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the + * handlers respectively. + * + * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the + * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32, + * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating + * the success of the command execution. + * + * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read + * value is returned with IWL_TM_ATTR_REG_VALUE32. + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + u32 ofs, val32; + u8 val8; + struct sk_buff *skb; + int status = 0; + + if (!tb[IWL_TM_ATTR_REG_OFFSET]) { + IWL_DEBUG_INFO(priv, "Error finding register offset\n"); + return -ENOMSG; + } + ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); + IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs); + + switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { + case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: + val32 = iwl_read32(bus(priv), ofs); + IWL_INFO(priv, "32bit value to read 0x%x\n", val32); + + skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); + if (!skb) { + IWL_DEBUG_INFO(priv, "Error allocating memory\n"); + return -ENOMEM; + } + NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); + status = cfg80211_testmode_reply(skb); + if (status < 0) + IWL_DEBUG_INFO(priv, + "Error sending msg : %d\n", status); + break; + case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: + if (!tb[IWL_TM_ATTR_REG_VALUE32]) { + IWL_DEBUG_INFO(priv, + "Error finding value to write\n"); + return -ENOMSG; + } else { + val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); + IWL_INFO(priv, "32bit value to write 0x%x\n", val32); + iwl_write32(bus(priv), ofs, val32); + } + break; + case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: + if (!tb[IWL_TM_ATTR_REG_VALUE8]) { + IWL_DEBUG_INFO(priv, "Error finding value to write\n"); + return -ENOMSG; + } else { + val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); + IWL_INFO(priv, "8bit value to write 0x%x\n", val8); + iwl_write8(bus(priv), ofs, val8); + } + break; + case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32: + val32 = iwl_read_prph(bus(priv), ofs); + IWL_INFO(priv, "32bit value to read 0x%x\n", val32); + + skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); + if (!skb) { + IWL_DEBUG_INFO(priv, "Error allocating memory\n"); + return -ENOMEM; + } + NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); + status = cfg80211_testmode_reply(skb); + if (status < 0) + IWL_DEBUG_INFO(priv, + "Error sending msg : %d\n", status); + break; + case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32: + if (!tb[IWL_TM_ATTR_REG_VALUE32]) { + IWL_DEBUG_INFO(priv, + "Error finding value to write\n"); + return -ENOMSG; + } else { + val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); + IWL_INFO(priv, "32bit value to write 0x%x\n", val32); + iwl_write_prph(bus(priv), ofs, val32); + } + break; + default: + IWL_DEBUG_INFO(priv, "Unknown testmode register command ID\n"); + return -ENOSYS; + } + + return status; + +nla_put_failure: + kfree_skb(skb); + return -EMSGSIZE; +} + + +static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) +{ + struct iwl_notification_wait calib_wait; + int ret; + + iwlagn_init_notification_wait(priv, &calib_wait, + CALIBRATION_COMPLETE_NOTIFICATION, + NULL, NULL); + ret = iwlagn_init_alive_start(priv); + if (ret) { + IWL_DEBUG_INFO(priv, + "Error configuring init calibration: %d\n", ret); + goto cfg_init_calib_error; + } + + ret = iwlagn_wait_notification(priv, &calib_wait, 2 * HZ); + if (ret) + IWL_DEBUG_INFO(priv, "Error detecting" + " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); + return ret; + +cfg_init_calib_error: + iwlagn_remove_notification(priv, &calib_wait); + return ret; +} + +/* + * This function handles the user application commands for driver. + * + * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the + * handlers respectively. + * + * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned + * value of the actual command execution is replied to the user application. + * + * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP + * is used for carry the message while IWL_TM_ATTR_COMMAND must set to + * IWL_TM_CMD_DEV2APP_SYNC_RSP. + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + struct sk_buff *skb; + unsigned char *rsp_data_ptr = NULL; + int status = 0, rsp_data_len = 0; + + switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { + case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: + rsp_data_ptr = (unsigned char *)priv->cfg->name; + rsp_data_len = strlen(priv->cfg->name); + skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, + rsp_data_len + 20); + if (!skb) { + IWL_DEBUG_INFO(priv, + "Error allocating memory\n"); + return -ENOMEM; + } + NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, + IWL_TM_CMD_DEV2APP_SYNC_RSP); + NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP, + rsp_data_len, rsp_data_ptr); + status = cfg80211_testmode_reply(skb); + if (status < 0) + IWL_DEBUG_INFO(priv, "Error sending msg : %d\n", + status); + break; + + case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: + status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_INIT); + if (status) + IWL_DEBUG_INFO(priv, + "Error loading init ucode: %d\n", status); + break; + + case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: + iwl_testmode_cfg_init_calib(priv); + iwl_trans_stop_device(trans(priv)); + break; + + case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: + status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); + if (status) { + IWL_DEBUG_INFO(priv, + "Error loading runtime ucode: %d\n", status); + break; + } + status = iwl_alive_start(priv); + if (status) + IWL_DEBUG_INFO(priv, + "Error starting the device: %d\n", status); + break; + + case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: + iwl_scan_cancel_timeout(priv, 200); + iwl_trans_stop_device(trans(priv)); + status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); + if (status) { + IWL_DEBUG_INFO(priv, + "Error loading WOWLAN ucode: %d\n", status); + break; + } + status = iwl_alive_start(priv); + if (status) + IWL_DEBUG_INFO(priv, + "Error starting the device: %d\n", status); + break; + + case IWL_TM_CMD_APP2DEV_GET_EEPROM: + if (priv->eeprom) { + skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, + priv->cfg->base_params->eeprom_size + 20); + if (!skb) { + IWL_DEBUG_INFO(priv, + "Error allocating memory\n"); + return -ENOMEM; + } + NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, + IWL_TM_CMD_DEV2APP_EEPROM_RSP); + NLA_PUT(skb, IWL_TM_ATTR_EEPROM, + priv->cfg->base_params->eeprom_size, + priv->eeprom); + status = cfg80211_testmode_reply(skb); + if (status < 0) + IWL_DEBUG_INFO(priv, + "Error sending msg : %d\n", + status); + } else + return -EFAULT; + break; + + case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: + if (!tb[IWL_TM_ATTR_FIXRATE]) { + IWL_DEBUG_INFO(priv, + "Error finding fixrate setting\n"); + return -ENOMSG; + } + priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); + break; + + default: + IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n"); + return -ENOSYS; + } + return status; + +nla_put_failure: + kfree_skb(skb); + return -EMSGSIZE; +} + + +/* + * This function handles the user application commands for uCode trace + * + * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the + * handlers respectively. + * + * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned + * value of the actual command execution is replied to the user application. + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + struct sk_buff *skb; + int status = 0; + struct device *dev = bus(priv)->dev; + + switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { + case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: + if (priv->testmode_trace.trace_enabled) + return -EBUSY; + + if (!tb[IWL_TM_ATTR_TRACE_SIZE]) + priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF; + else + priv->testmode_trace.buff_size = + nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); + if (!priv->testmode_trace.buff_size) + return -EINVAL; + if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN || + priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX) + return -EINVAL; + + priv->testmode_trace.total_size = + priv->testmode_trace.buff_size + TRACE_BUFF_PADD; + priv->testmode_trace.cpu_addr = + dma_alloc_coherent(dev, + priv->testmode_trace.total_size, + &priv->testmode_trace.dma_addr, + GFP_KERNEL); + if (!priv->testmode_trace.cpu_addr) + return -ENOMEM; + priv->testmode_trace.trace_enabled = true; + priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN( + priv->testmode_trace.cpu_addr, 0x100); + memset(priv->testmode_trace.trace_addr, 0x03B, + priv->testmode_trace.buff_size); + skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, + sizeof(priv->testmode_trace.dma_addr) + 20); + if (!skb) { + IWL_DEBUG_INFO(priv, + "Error allocating memory\n"); + iwl_trace_cleanup(priv); + return -ENOMEM; + } + NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR, + sizeof(priv->testmode_trace.dma_addr), + (u64 *)&priv->testmode_trace.dma_addr); + status = cfg80211_testmode_reply(skb); + if (status < 0) { + IWL_DEBUG_INFO(priv, + "Error sending msg : %d\n", + status); + } + priv->testmode_trace.num_chunks = + DIV_ROUND_UP(priv->testmode_trace.buff_size, + DUMP_CHUNK_SIZE); + break; + + case IWL_TM_CMD_APP2DEV_END_TRACE: + iwl_trace_cleanup(priv); + break; + default: + IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n"); + return -ENOSYS; + } + return status; + +nla_put_failure: + kfree_skb(skb); + if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == + IWL_TM_CMD_APP2DEV_BEGIN_TRACE) + iwl_trace_cleanup(priv); + return -EMSGSIZE; +} + +static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb, + struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct iwl_priv *priv = hw->priv; + int idx, length; + + if (priv->testmode_trace.trace_enabled && + priv->testmode_trace.trace_addr) { + idx = cb->args[4]; + if (idx >= priv->testmode_trace.num_chunks) + return -ENOENT; + length = DUMP_CHUNK_SIZE; + if (((idx + 1) == priv->testmode_trace.num_chunks) && + (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE)) + length = priv->testmode_trace.buff_size % + DUMP_CHUNK_SIZE; + + NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length, + priv->testmode_trace.trace_addr + + (DUMP_CHUNK_SIZE * idx)); + idx++; + cb->args[4] = idx; + return 0; + } else + return -EFAULT; + + nla_put_failure: + return -ENOBUFS; +} + +/* + * This function handles the user application switch ucode ownership. + * + * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and + * decide who the current owner of the uCode + * + * If the current owner is OWNERSHIP_TM, then the only host command + * can deliver to uCode is from testmode, all the other host commands + * will dropped. + * + * default driver is the owner of uCode in normal operational mode + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + u8 owner; + + if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { + IWL_DEBUG_INFO(priv, "Error finding ucode owner\n"); + return -ENOMSG; + } + + owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); + if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM)) + priv->shrd->ucode_owner = owner; + else { + IWL_DEBUG_INFO(priv, "Invalid owner\n"); + return -EINVAL; + } + return 0; +} + +/* + * This function handles the user application commands for SRAM data dump + * + * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and + * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading + * + * Several error will be retured, -EBUSY if the SRAM data retrieved by + * previous command has not been delivered to userspace, or -ENOMSG if + * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE) + * are missing, or -ENOMEM if the buffer allocation fails. + * + * Otherwise 0 is replied indicating the success of the SRAM reading. + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_sram(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + u32 base, ofs, size, maxsize; + + if (priv->testmode_sram.sram_readed) + return -EBUSY; + + if (!tb[IWL_TM_ATTR_SRAM_ADDR]) { + IWL_DEBUG_INFO(priv, "Error finding SRAM offset address\n"); + return -ENOMSG; + } + ofs = nla_get_u32(tb[IWL_TM_ATTR_SRAM_ADDR]); + if (!tb[IWL_TM_ATTR_SRAM_SIZE]) { + IWL_DEBUG_INFO(priv, "Error finding size for SRAM reading\n"); + return -ENOMSG; + } + size = nla_get_u32(tb[IWL_TM_ATTR_SRAM_SIZE]); + switch (priv->ucode_type) { + case IWL_UCODE_REGULAR: + maxsize = trans(priv)->ucode_rt.data.len; + break; + case IWL_UCODE_INIT: + maxsize = trans(priv)->ucode_init.data.len; + break; + case IWL_UCODE_WOWLAN: + maxsize = trans(priv)->ucode_wowlan.data.len; + break; + case IWL_UCODE_NONE: + IWL_DEBUG_INFO(priv, "Error, uCode does not been loaded\n"); + return -ENOSYS; + default: + IWL_DEBUG_INFO(priv, "Error, unsupported uCode type\n"); + return -ENOSYS; + } + if ((ofs + size) > maxsize) { + IWL_DEBUG_INFO(priv, "Invalid offset/size: out of range\n"); + return -EINVAL; + } + priv->testmode_sram.buff_size = (size / 4) * 4; + priv->testmode_sram.buff_addr = + kmalloc(priv->testmode_sram.buff_size, GFP_KERNEL); + if (priv->testmode_sram.buff_addr == NULL) { + IWL_DEBUG_INFO(priv, "Error allocating memory\n"); + return -ENOMEM; + } + base = 0x800000; + _iwl_read_targ_mem_words(bus(priv), base + ofs, + priv->testmode_sram.buff_addr, + priv->testmode_sram.buff_size / 4); + priv->testmode_sram.num_chunks = + DIV_ROUND_UP(priv->testmode_sram.buff_size, DUMP_CHUNK_SIZE); + priv->testmode_sram.sram_readed = true; + return 0; +} + +static int iwl_testmode_sram_dump(struct ieee80211_hw *hw, struct nlattr **tb, + struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct iwl_priv *priv = hw->priv; + int idx, length; + + if (priv->testmode_sram.sram_readed) { + idx = cb->args[4]; + if (idx >= priv->testmode_sram.num_chunks) { + iwl_sram_cleanup(priv); + return -ENOENT; + } + length = DUMP_CHUNK_SIZE; + if (((idx + 1) == priv->testmode_sram.num_chunks) && + (priv->testmode_sram.buff_size % DUMP_CHUNK_SIZE)) + length = priv->testmode_sram.buff_size % + DUMP_CHUNK_SIZE; + + NLA_PUT(skb, IWL_TM_ATTR_SRAM_DUMP, length, + priv->testmode_sram.buff_addr + + (DUMP_CHUNK_SIZE * idx)); + idx++; + cb->args[4] = idx; + return 0; + } else + return -EFAULT; + + nla_put_failure: + return -ENOBUFS; +} + + +/* The testmode gnl message handler that takes the gnl message from the + * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then + * invoke the corresponding handlers. + * + * This function is invoked when there is user space application sending + * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated + * by nl80211. + * + * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before + * dispatching it to the corresponding handler. + * + * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; + * -ENOSYS is replied to the user application if the command is unknown; + * Otherwise, the command is dispatched to the respective handler. + * + * @hw: ieee80211_hw object that represents the device + * @data: pointer to user space message + * @len: length in byte of @data + */ +int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) +{ + struct nlattr *tb[IWL_TM_ATTR_MAX]; + struct iwl_priv *priv = hw->priv; + int result; + + result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, + iwl_testmode_gnl_msg_policy); + if (result != 0) { + IWL_DEBUG_INFO(priv, + "Error parsing the gnl message : %d\n", result); + return result; + } + + /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ + if (!tb[IWL_TM_ATTR_COMMAND]) { + IWL_DEBUG_INFO(priv, "Error finding testmode command type\n"); + return -ENOMSG; + } + /* in case multiple accesses to the device happens */ + mutex_lock(&priv->shrd->mutex); + + switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { + case IWL_TM_CMD_APP2DEV_UCODE: + IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n"); + result = iwl_testmode_ucode(hw, tb); + break; + case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: + case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: + case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: + case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32: + case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32: + IWL_DEBUG_INFO(priv, "testmode cmd to register\n"); + result = iwl_testmode_reg(hw, tb); + break; + case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: + case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: + case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: + case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: + case IWL_TM_CMD_APP2DEV_GET_EEPROM: + case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: + case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: + IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); + result = iwl_testmode_driver(hw, tb); + break; + + case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: + case IWL_TM_CMD_APP2DEV_END_TRACE: + case IWL_TM_CMD_APP2DEV_READ_TRACE: + IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n"); + result = iwl_testmode_trace(hw, tb); + break; + + case IWL_TM_CMD_APP2DEV_OWNERSHIP: + IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); + result = iwl_testmode_ownership(hw, tb); + break; + + case IWL_TM_CMD_APP2DEV_READ_SRAM: + IWL_DEBUG_INFO(priv, "testmode sram read cmd to driver\n"); + result = iwl_testmode_sram(hw, tb); + break; + + default: + IWL_DEBUG_INFO(priv, "Unknown testmode command\n"); + result = -ENOSYS; + break; + } + + mutex_unlock(&priv->shrd->mutex); + return result; +} + +int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, + struct netlink_callback *cb, + void *data, int len) +{ + struct nlattr *tb[IWL_TM_ATTR_MAX]; + struct iwl_priv *priv = hw->priv; + int result; + u32 cmd; + + if (cb->args[3]) { + /* offset by 1 since commands start at 0 */ + cmd = cb->args[3] - 1; + } else { + result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, + iwl_testmode_gnl_msg_policy); + if (result) { + IWL_DEBUG_INFO(priv, + "Error parsing the gnl message : %d\n", result); + return result; + } + + /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ + if (!tb[IWL_TM_ATTR_COMMAND]) { + IWL_DEBUG_INFO(priv, + "Error finding testmode command type\n"); + return -ENOMSG; + } + cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); + cb->args[3] = cmd + 1; + } + + /* in case multiple accesses to the device happens */ + mutex_lock(&priv->shrd->mutex); + switch (cmd) { + case IWL_TM_CMD_APP2DEV_READ_TRACE: + IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n"); + result = iwl_testmode_trace_dump(hw, tb, skb, cb); + break; + case IWL_TM_CMD_APP2DEV_DUMP_SRAM: + IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n"); + result = iwl_testmode_sram_dump(hw, tb, skb, cb); + break; + default: + result = -EINVAL; + break; + } + + mutex_unlock(&priv->shrd->mutex); + return result; +}