Return-path: Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:28976 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750971AbaDQSrg (ORCPT ); Thu, 17 Apr 2014 14:47:36 -0400 From: Bing Zhao To: CC: "John W. Linville" , Amitkumar Karwar , Avinash Patil , Maithili Hinge , Xinming Hu , Bing Zhao Subject: [PATCH 1/5] mwifiex: add fw_dump debugfs file Date: Thu, 17 Apr 2014 11:46:59 -0700 Message-ID: <1397760423-11455-1-git-send-email-bzhao@marvell.com> (sfid-20140417_204757_712827_BA1837B0) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Amitkumar Karwar This option be useful to dump firmware memory for debugging purpose. Actual code to dump firmware momory for SDIO and PCIe chipsets will be added later. Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao --- drivers/net/wireless/mwifiex/README | 7 +++++++ drivers/net/wireless/mwifiex/debugfs.c | 25 +++++++++++++++++++++++++ drivers/net/wireless/mwifiex/main.h | 1 + 3 files changed, 33 insertions(+) diff --git a/drivers/net/wireless/mwifiex/README b/drivers/net/wireless/mwifiex/README index b9242c3..3b55ce5 100644 --- a/drivers/net/wireless/mwifiex/README +++ b/drivers/net/wireless/mwifiex/README @@ -200,4 +200,11 @@ getlog cat getlog +fw_dump + This command is used to dump firmware memory into files. + Separate file will be created for each memory segment. + Usage: + + cat fw_dump + =============================================================================== diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c index b8a49aa..7b419bb 100644 --- a/drivers/net/wireless/mwifiex/debugfs.c +++ b/drivers/net/wireless/mwifiex/debugfs.c @@ -257,6 +257,29 @@ free_and_exit: } /* + * Proc firmware dump read handler. + * + * This function is called when the 'fw_dump' file is opened for + * reading. + * This function dumps firmware memory in different files + * (ex. DTCM, ITCM, SQRAM etc.) based on the the segments for + * debugging. + */ +static ssize_t +mwifiex_fw_dump_read(struct file *file, char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct mwifiex_private *priv = file->private_data; + + if (!priv->adapter->if_ops.fw_dump) + return -EIO; + + priv->adapter->if_ops.fw_dump(priv->adapter); + + return 0; +} + +/* * Proc getlog file read handler. * * This function is called when the 'getlog' file is opened for reading @@ -699,6 +722,7 @@ static const struct file_operations mwifiex_dfs_##name##_fops = { \ MWIFIEX_DFS_FILE_READ_OPS(info); MWIFIEX_DFS_FILE_READ_OPS(debug); MWIFIEX_DFS_FILE_READ_OPS(getlog); +MWIFIEX_DFS_FILE_READ_OPS(fw_dump); MWIFIEX_DFS_FILE_OPS(regrdwr); MWIFIEX_DFS_FILE_OPS(rdeeprom); @@ -722,6 +746,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv) MWIFIEX_DFS_ADD_FILE(getlog); MWIFIEX_DFS_ADD_FILE(regrdwr); MWIFIEX_DFS_ADD_FILE(rdeeprom); + MWIFIEX_DFS_ADD_FILE(fw_dump); } /* diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index ae8b042..3418119 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -672,6 +672,7 @@ struct mwifiex_if_ops { int (*init_fw_port) (struct mwifiex_adapter *); int (*dnld_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *); void (*card_reset) (struct mwifiex_adapter *); + void (*fw_dump)(struct mwifiex_adapter *); int (*clean_pcie_ring) (struct mwifiex_adapter *adapter); }; -- 1.8.2.3