Bluetooth: Add debugfs support to btmrvl driver
/debug/btmrvl/config/ /debug/btmrvl/status/ See Documentation/btmrvl.txt for details. This patch incorporates a lot of comments given by Nicolas Pitre <nico@marvell.com>. Many thanks to Nicolas Pitre. Signed-off-by: Rahul Tank <rahult@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Bing Zhao
Marcel Holtmann
parent
789221ecc8
commit
fb784f0508
5 changed files with 487 additions and 1 deletions
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@ -173,6 +173,7 @@ config BT_HCIVHCI
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config BT_MRVL
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tristate "Marvell Bluetooth driver support"
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select FW_LOADER
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select DEBUG_FS
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help
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The core driver to support Marvell Bluetooth devices.
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@ -15,7 +15,7 @@ obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
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obj-$(CONFIG_BT_HCIBTUSB) += btusb.o
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obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o
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btmrvl-objs := btmrvl_main.o
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btmrvl-objs := btmrvl_main.o btmrvl_debugfs.o
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obj-$(CONFIG_BT_MRVL) += btmrvl.o
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obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
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469
drivers/bluetooth/btmrvl_debugfs.c
Normal file
469
drivers/bluetooth/btmrvl_debugfs.c
Normal file
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@ -0,0 +1,469 @@
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/**
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* Marvell Bluetooth driver: debugfs related functions
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*
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* Copyright (C) 2009, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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**/
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#include <linux/debugfs.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include "btmrvl_drv.h"
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struct btmrvl_debugfs_data {
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struct dentry *root_dir, *config_dir, *status_dir;
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/* config */
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struct dentry *drvdbg;
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struct dentry *psmode;
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struct dentry *pscmd;
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struct dentry *hsmode;
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struct dentry *hscmd;
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struct dentry *gpiogap;
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struct dentry *hscfgcmd;
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/* status */
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struct dentry *curpsmode;
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struct dentry *hsstate;
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struct dentry *psstate;
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struct dentry *txdnldready;
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};
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static int btmrvl_open_generic(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static ssize_t btmrvl_hscfgcmd_write(struct file *file,
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const char __user *ubuf,
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size_t count,
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loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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priv->btmrvl_dev.hscfgcmd = result;
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if (priv->btmrvl_dev.hscfgcmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.hscfgcmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hscfgcmd_fops = {
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.read = btmrvl_hscfgcmd_read,
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.write = btmrvl_hscfgcmd_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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priv->btmrvl_dev.psmode = result;
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return count;
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}
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static ssize_t btmrvl_psmode_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.psmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_psmode_fops = {
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.read = btmrvl_psmode_read,
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.write = btmrvl_psmode_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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priv->btmrvl_dev.pscmd = result;
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if (priv->btmrvl_dev.pscmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_pscmd_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_pscmd_fops = {
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.read = btmrvl_pscmd_read,
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.write = btmrvl_pscmd_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 16, &result);
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priv->btmrvl_dev.gpio_gap = result;
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return count;
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}
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static ssize_t btmrvl_gpiogap_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n",
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priv->btmrvl_dev.gpio_gap);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_gpiogap_fops = {
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.read = btmrvl_gpiogap_read,
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.write = btmrvl_gpiogap_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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priv->btmrvl_dev.hscmd = result;
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if (priv->btmrvl_dev.hscmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_hscmd_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hscmd_fops = {
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.read = btmrvl_hscmd_read,
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.write = btmrvl_hscmd_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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long result, ret;
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char buf[16];
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf,
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min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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priv->btmrvl_dev.hsmode = result;
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return count;
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}
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static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.hsmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hsmode_fops = {
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.read = btmrvl_hsmode_read,
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.write = btmrvl_hsmode_write,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_curpsmode_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_curpsmode_fops = {
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.read = btmrvl_curpsmode_read,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->adapter->ps_state);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_psstate_fops = {
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.read = btmrvl_psstate_read,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_hsstate_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->adapter->hs_state);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hsstate_fops = {
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.read = btmrvl_hsstate_read,
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.open = btmrvl_open_generic,
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};
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static ssize_t btmrvl_txdnldready_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) file->private_data;
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int ret;
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char buf[16];
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.tx_dnld_rdy);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_txdnldready_fops = {
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.read = btmrvl_txdnldready_read,
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.open = btmrvl_open_generic,
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};
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void btmrvl_debugfs_init(struct hci_dev *hdev)
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{
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struct btmrvl_private *priv =
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(struct btmrvl_private *) hdev->driver_data;
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struct btmrvl_debugfs_data *dbg;
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dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
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priv->debugfs_data = dbg;
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if (!dbg) {
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BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
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return;
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}
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dbg->root_dir = debugfs_create_dir("btmrvl", NULL);
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dbg->config_dir = debugfs_create_dir("config", dbg->root_dir);
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dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir,
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hdev->driver_data,
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&btmrvl_psmode_fops);
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dbg->pscmd =
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debugfs_create_file("pscmd", 0644, dbg->config_dir,
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hdev->driver_data, &btmrvl_pscmd_fops);
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dbg->gpiogap =
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debugfs_create_file("gpiogap", 0644, dbg->config_dir,
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hdev->driver_data, &btmrvl_gpiogap_fops);
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dbg->hsmode =
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debugfs_create_file("hsmode", 0644, dbg->config_dir,
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hdev->driver_data, &btmrvl_hsmode_fops);
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dbg->hscmd =
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debugfs_create_file("hscmd", 0644, dbg->config_dir,
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hdev->driver_data, &btmrvl_hscmd_fops);
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dbg->hscfgcmd =
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debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
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hdev->driver_data, &btmrvl_hscfgcmd_fops);
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dbg->status_dir = debugfs_create_dir("status", dbg->root_dir);
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dbg->curpsmode = debugfs_create_file("curpsmode", 0444,
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dbg->status_dir,
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hdev->driver_data,
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&btmrvl_curpsmode_fops);
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dbg->psstate =
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debugfs_create_file("psstate", 0444, dbg->status_dir,
|
||||
hdev->driver_data, &btmrvl_psstate_fops);
|
||||
dbg->hsstate =
|
||||
debugfs_create_file("hsstate", 0444, dbg->status_dir,
|
||||
hdev->driver_data, &btmrvl_hsstate_fops);
|
||||
dbg->txdnldready =
|
||||
debugfs_create_file("txdnldready", 0444, dbg->status_dir,
|
||||
hdev->driver_data, &btmrvl_txdnldready_fops);
|
||||
}
|
||||
|
||||
void btmrvl_debugfs_remove(struct hci_dev *hdev)
|
||||
{
|
||||
struct btmrvl_private *priv =
|
||||
(struct btmrvl_private *) hdev->driver_data;
|
||||
struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
|
||||
|
||||
if (!dbg)
|
||||
return;
|
||||
|
||||
debugfs_remove(dbg->psmode);
|
||||
debugfs_remove(dbg->pscmd);
|
||||
debugfs_remove(dbg->gpiogap);
|
||||
debugfs_remove(dbg->hsmode);
|
||||
debugfs_remove(dbg->hscmd);
|
||||
debugfs_remove(dbg->hscfgcmd);
|
||||
debugfs_remove(dbg->config_dir);
|
||||
|
||||
debugfs_remove(dbg->curpsmode);
|
||||
debugfs_remove(dbg->psstate);
|
||||
debugfs_remove(dbg->hsstate);
|
||||
debugfs_remove(dbg->txdnldready);
|
||||
debugfs_remove(dbg->status_dir);
|
||||
|
||||
debugfs_remove(dbg->root_dir);
|
||||
|
||||
kfree(dbg);
|
||||
}
|
||||
|
|
@ -79,6 +79,9 @@ struct btmrvl_private {
|
|||
u8 *payload, u16 nb);
|
||||
int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
|
||||
spinlock_t driver_lock; /* spinlock used by driver */
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
void *debugfs_data;
|
||||
#endif
|
||||
};
|
||||
|
||||
#define MRVL_VENDOR_PKT 0xFE
|
||||
|
|
@ -135,4 +138,9 @@ int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
|
|||
int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
|
||||
int btmrvl_prepare_command(struct btmrvl_private *priv);
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
void btmrvl_debugfs_init(struct hci_dev *hdev);
|
||||
void btmrvl_debugfs_remove(struct hci_dev *hdev);
|
||||
#endif
|
||||
|
||||
#endif /* _BTMRVL_DRV_H_ */
|
||||
|
|
|
|||
|
|
@ -658,6 +658,10 @@ struct btmrvl_private *btmrvl_add_card(void *card)
|
|||
goto err_hci_register_dev;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
btmrvl_debugfs_init(hdev);
|
||||
#endif
|
||||
|
||||
BT_DBG("Leave");
|
||||
return priv;
|
||||
|
||||
|
|
@ -692,6 +696,10 @@ int btmrvl_remove_card(struct btmrvl_private *priv)
|
|||
|
||||
kthread_stop(priv->main_thread.task);
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
btmrvl_debugfs_remove(hdev);
|
||||
#endif
|
||||
|
||||
hci_unregister_dev(hdev);
|
||||
|
||||
hci_free_dev(hdev);
|
||||
|
|
|
|||
Loading…
Reference in a new issue