diff options
Diffstat (limited to 'drivers/bluetooth/btmrvl_debugfs.c')
| -rw-r--r-- | drivers/bluetooth/btmrvl_debugfs.c | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c new file mode 100644 index 000000000000..4617bd12f63b --- /dev/null +++ b/drivers/bluetooth/btmrvl_debugfs.c @@ -0,0 +1,432 @@ +/** + * Marvell Bluetooth driver: debugfs related functions + * + * Copyright (C) 2009, Marvell International Ltd. + * + * This software file (the "File") is distributed by Marvell International + * Ltd. under the terms of the GNU General Public License Version 2, June 1991 + * (the "License"). You may use, redistribute and/or modify this File in + * accordance with the terms and conditions of the License, a copy of which + * is available by writing to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the + * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. + * + * + * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE + * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE + * ARE EXPRESSLY DISCLAIMED. The License provides additional details about + * this warranty disclaimer. + **/ + +#include <linux/debugfs.h> + +#include <net/bluetooth/bluetooth.h> +#include <net/bluetooth/hci_core.h> + +#include "btmrvl_drv.h" + +struct btmrvl_debugfs_data { + struct dentry *root_dir, *config_dir, *status_dir; + + /* config */ + struct dentry *drvdbg; + struct dentry *psmode; + struct dentry *pscmd; + struct dentry *hsmode; + struct dentry *hscmd; + struct dentry *gpiogap; + struct dentry *hscfgcmd; + + /* status */ + struct dentry *curpsmode; + struct dentry *hsstate; + struct dentry *psstate; + struct dentry *txdnldready; +}; + +static int btmrvl_open_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t btmrvl_hscfgcmd_write(struct file *file, + const char __user *ubuf, size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 10, &result); + + priv->btmrvl_dev.hscfgcmd = result; + + if (priv->btmrvl_dev.hscfgcmd) { + btmrvl_prepare_command(priv); + wake_up_interruptible(&priv->main_thread.wait_q); + } + + return count; +} + +static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", + priv->btmrvl_dev.hscfgcmd); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_hscfgcmd_fops = { + .read = btmrvl_hscfgcmd_read, + .write = btmrvl_hscfgcmd_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 10, &result); + + priv->btmrvl_dev.psmode = result; + + return count; +} + +static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", + priv->btmrvl_dev.psmode); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_psmode_fops = { + .read = btmrvl_psmode_read, + .write = btmrvl_psmode_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 10, &result); + + priv->btmrvl_dev.pscmd = result; + + if (priv->btmrvl_dev.pscmd) { + btmrvl_prepare_command(priv); + wake_up_interruptible(&priv->main_thread.wait_q); + } + + return count; + +} + +static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_pscmd_fops = { + .read = btmrvl_pscmd_read, + .write = btmrvl_pscmd_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 16, &result); + + priv->btmrvl_dev.gpio_gap = result; + + return count; +} + +static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n", + priv->btmrvl_dev.gpio_gap); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_gpiogap_fops = { + .read = btmrvl_gpiogap_read, + .write = btmrvl_gpiogap_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = (struct btmrvl_private *) file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 10, &result); + + priv->btmrvl_dev.hscmd = result; + if (priv->btmrvl_dev.hscmd) { + btmrvl_prepare_command(priv); + wake_up_interruptible(&priv->main_thread.wait_q); + } + + return count; +} + +static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_hscmd_fops = { + .read = btmrvl_hscmd_read, + .write = btmrvl_hscmd_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + long result, ret; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + ret = strict_strtol(buf, 10, &result); + + priv->btmrvl_dev.hsmode = result; + + return count; +} + +static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hsmode); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_hsmode_fops = { + .read = btmrvl_hsmode_read, + .write = btmrvl_hsmode_write, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_curpsmode_fops = { + .read = btmrvl_curpsmode_read, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->ps_state); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_psstate_fops = { + .read = btmrvl_psstate_read, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->hs_state); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_hsstate_fops = { + .read = btmrvl_hsstate_read, + .open = btmrvl_open_generic, +}; + +static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + int ret; + + ret = snprintf(buf, sizeof(buf) - 1, "%d\n", + priv->btmrvl_dev.tx_dnld_rdy); + + return simple_read_from_buffer(userbuf, count, ppos, buf, ret); +} + +static const struct file_operations btmrvl_txdnldready_fops = { + .read = btmrvl_txdnldready_read, + .open = btmrvl_open_generic, +}; + +void btmrvl_debugfs_init(struct hci_dev *hdev) +{ + struct btmrvl_private *priv = hdev->driver_data; + struct btmrvl_debugfs_data *dbg; + + dbg = kzalloc(sizeof(*dbg), GFP_KERNEL); + priv->debugfs_data = dbg; + + if (!dbg) { + BT_ERR("Can not allocate memory for btmrvl_debugfs_data."); + return; + } + + dbg->root_dir = debugfs_create_dir("btmrvl", NULL); + + dbg->config_dir = debugfs_create_dir("config", dbg->root_dir); + + dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_psmode_fops); + dbg->pscmd = debugfs_create_file("pscmd", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_pscmd_fops); + dbg->gpiogap = debugfs_create_file("gpiogap", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_gpiogap_fops); + dbg->hsmode = debugfs_create_file("hsmode", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_hsmode_fops); + dbg->hscmd = debugfs_create_file("hscmd", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_hscmd_fops); + dbg->hscfgcmd = debugfs_create_file("hscfgcmd", 0644, dbg->config_dir, + hdev->driver_data, &btmrvl_hscfgcmd_fops); + + dbg->status_dir = debugfs_create_dir("status", dbg->root_dir); + dbg->curpsmode = debugfs_create_file("curpsmode", 0444, + dbg->status_dir, + hdev->driver_data, + &btmrvl_curpsmode_fops); + dbg->psstate = 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 = 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); +} |