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Bluetooth: Add debugfs fields for hardware and firmware info

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Some Bluetooth controllers allow for reading hardware and firmware
related vendor specific infos. If they are available, then they can be
exposed via debugfs now.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann
2016-07-17 19:55:16 +02:00
committed by Johan Hedberg
parent f962fe32f2
commit 5177a83827
3 changed files with 63 additions and 0 deletions
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35
net/bluetooth/hci_debugfs.c
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@@ -76,6 +76,30 @@ static const struct file_operations __name ## _fops = { \
.llseek = default_llseek, \
} \
#define DEFINE_INFO_ATTRIBUTE(__name, __field) \
static int __name ## _show(struct seq_file *f, void *ptr) \
{ \
struct hci_dev *hdev = f->private; \
\
hci_dev_lock(hdev); \
seq_printf(f, "%s\n", hdev->__field ? : ""); \
hci_dev_unlock(hdev); \
\
return 0; \
} \
\
static int __name ## _open(struct inode *inode, struct file *file) \
{ \
return single_open(file, __name ## _show, inode->i_private); \
} \
\
static const struct file_operations __name ## _fops = { \
.open = __name ## _open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
} \
static int features_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@@ -349,6 +373,9 @@ static const struct file_operations sc_only_mode_fops = {
.llseek = default_llseek,
};
DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info);
void hci_debugfs_create_common(struct hci_dev *hdev)
{
debugfs_create_file("features", 0444, hdev->debugfs, hdev,
@@ -382,6 +409,14 @@ void hci_debugfs_create_common(struct hci_dev *hdev)
if (lmp_sc_capable(hdev) || lmp_le_capable(hdev))
debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
hdev, &sc_only_mode_fops);
if (hdev->hw_info)
debugfs_create_file("hardware_info", 0444, hdev->debugfs,
hdev, &hardware_info_fops);
if (hdev->fw_info)
debugfs_create_file("firmware_info", 0444, hdev->debugfs,
hdev, &firmware_info_fops);
}
static int inquiry_cache_show(struct seq_file *f, void *p)