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Diffstat (limited to 'net/bluetooth/hci_debugfs.c')
-rw-r--r--net/bluetooth/hci_debugfs.c343
1 files changed, 268 insertions, 75 deletions
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 5e8af2658e44..99e2e9fc70e8 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -22,6 +22,7 @@
*/
#include <linux/debugfs.h>
+#include <linux/kstrtox.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -37,7 +38,7 @@ static ssize_t __name ## _read(struct file *file, \
struct hci_dev *hdev = file->private_data; \
char buf[3]; \
\
- buf[0] = test_bit(__quirk, &hdev->quirks) ? 'Y' : 'N'; \
+ buf[0] = test_bit(__quirk, hdev->quirk_flags) ? 'Y' : 'N'; \
buf[1] = '\n'; \
buf[2] = '\0'; \
return simple_read_from_buffer(user_buf, count, ppos, buf, 2); \
@@ -58,10 +59,10 @@ static ssize_t __name ## _write(struct file *file, \
if (err) \
return err; \
\
- if (enable == test_bit(__quirk, &hdev->quirks)) \
+ if (enable == test_bit(__quirk, hdev->quirk_flags)) \
return -EALREADY; \
\
- change_bit(__quirk, &hdev->quirks); \
+ change_bit(__quirk, hdev->quirk_flags); \
\
return count; \
} \
@@ -125,7 +126,7 @@ static int device_list_show(struct seq_file *f, void *ptr)
struct bdaddr_list *b;
hci_dev_lock(hdev);
- list_for_each_entry(b, &hdev->whitelist, list)
+ list_for_each_entry(b, &hdev->accept_list, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
list_for_each_entry(p, &hdev->le_conn_params, list) {
seq_printf(f, "%pMR (type %u) %u\n", &p->addr, p->addr_type,
@@ -144,7 +145,7 @@ static int blacklist_show(struct seq_file *f, void *p)
struct bdaddr_list *b;
hci_dev_lock(hdev);
- list_for_each_entry(b, &hdev->blacklist, list)
+ list_for_each_entry(b, &hdev->reject_list, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
hci_dev_unlock(hdev);
@@ -188,7 +189,7 @@ static int uuids_show(struct seq_file *f, void *p)
}
hci_dev_unlock(hdev);
- return 0;
+ return 0;
}
DEFINE_SHOW_ATTRIBUTE(uuids);
@@ -216,10 +217,12 @@ static int conn_info_min_age_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val == 0 || val > hdev->conn_info_max_age)
+ hci_dev_lock(hdev);
+ if (val == 0 || val > hdev->conn_info_max_age) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->conn_info_min_age = val;
hci_dev_unlock(hdev);
@@ -237,17 +240,19 @@ static int conn_info_min_age_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get,
- conn_info_min_age_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get,
+ conn_info_min_age_set, "%llu\n");
static int conn_info_max_age_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val == 0 || val < hdev->conn_info_min_age)
+ hci_dev_lock(hdev);
+ if (val == 0 || val < hdev->conn_info_min_age) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->conn_info_max_age = val;
hci_dev_unlock(hdev);
@@ -265,8 +270,8 @@ static int conn_info_max_age_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
- conn_info_max_age_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
+ conn_info_max_age_set, "%llu\n");
static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
@@ -274,7 +279,7 @@ static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf,
struct hci_dev *hdev = file->private_data;
char buf[3];
- buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y': 'N';
+ buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y' : 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
@@ -292,7 +297,7 @@ static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf,
struct hci_dev *hdev = file->private_data;
char buf[3];
- buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y': 'N';
+ buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y' : 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
@@ -419,8 +424,8 @@ static int voice_setting_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
- NULL, "0x%4.4llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(voice_setting_fops, voice_setting_get,
+ NULL, "0x%4.4llx\n");
static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
@@ -428,7 +433,7 @@ static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf,
struct hci_dev *hdev = file->private_data;
char buf[3];
- buf[0] = hdev->ssp_debug_mode ? 'Y': 'N';
+ buf[0] = hdev->ssp_debug_mode ? 'Y' : 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
@@ -476,9 +481,9 @@ static int min_encrypt_key_size_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(min_encrypt_key_size_fops,
- min_encrypt_key_size_get,
- min_encrypt_key_size_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(min_encrypt_key_size_fops,
+ min_encrypt_key_size_get,
+ min_encrypt_key_size_set, "%llu\n");
static int auto_accept_delay_get(void *data, u64 *val)
{
@@ -491,8 +496,47 @@ static int auto_accept_delay_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
- auto_accept_delay_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
+ auto_accept_delay_set, "%llu\n");
+
+static ssize_t force_bredr_smp_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ char buf[3];
+
+ buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_BREDR_SMP) ? 'Y' : 'N';
+ buf[1] = '\n';
+ buf[2] = '\0';
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t force_bredr_smp_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ bool enable;
+ int err;
+
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
+
+ err = smp_force_bredr(hdev, enable);
+ if (err)
+ return err;
+
+ return count;
+}
+
+static const struct file_operations force_bredr_smp_fops = {
+ .open = simple_open,
+ .read = force_bredr_smp_read,
+ .write = force_bredr_smp_write,
+ .llseek = default_llseek,
+};
static int idle_timeout_set(void *data, u64 val)
{
@@ -519,17 +563,19 @@ static int idle_timeout_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
- idle_timeout_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
+ idle_timeout_set, "%llu\n");
static int sniff_min_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
+ hci_dev_lock(hdev);
+ if (val == 0 || val % 2 || val > hdev->sniff_max_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->sniff_min_interval = val;
hci_dev_unlock(hdev);
@@ -547,17 +593,19 @@ static int sniff_min_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get,
- sniff_min_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get,
+ sniff_min_interval_set, "%llu\n");
static int sniff_max_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
+ hci_dev_lock(hdev);
+ if (val == 0 || val % 2 || val < hdev->sniff_min_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->sniff_max_interval = val;
hci_dev_unlock(hdev);
@@ -575,8 +623,8 @@ static int sniff_max_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
- sniff_max_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
+ sniff_max_interval_set, "%llu\n");
void hci_debugfs_create_bredr(struct hci_dev *hdev)
{
@@ -589,6 +637,17 @@ void hci_debugfs_create_bredr(struct hci_dev *hdev)
debugfs_create_file("voice_setting", 0444, hdev->debugfs, hdev,
&voice_setting_fops);
+ /* If the controller does not support BR/EDR Secure Connections
+ * feature, then the BR/EDR SMP channel shall not be present.
+ *
+ * To test this with Bluetooth 4.0 controllers, create a debugfs
+ * switch that allows forcing BR/EDR SMP support and accepting
+ * cross-transport pairing on non-AES encrypted connections.
+ */
+ if (!lmp_sc_capable(hdev))
+ debugfs_create_file("force_bredr_smp", 0644, hdev->debugfs,
+ hdev, &force_bredr_smp_fops);
+
if (lmp_ssp_capable(hdev)) {
debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs,
hdev, &ssp_debug_mode_fops);
@@ -656,8 +715,8 @@ static int rpa_timeout_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get,
- rpa_timeout_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get,
+ rpa_timeout_set, "%llu\n");
static int random_address_show(struct seq_file *f, void *p)
{
@@ -692,7 +751,7 @@ static ssize_t force_static_address_read(struct file *file,
struct hci_dev *hdev = file->private_data;
char buf[3];
- buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y': 'N';
+ buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y' : 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
@@ -706,7 +765,7 @@ static ssize_t force_static_address_write(struct file *file,
bool enable;
int err;
- if (test_bit(HCI_UP, &hdev->flags))
+ if (hdev_is_powered(hdev))
return -EBUSY;
err = kstrtobool_from_user(user_buf, count, &enable);
@@ -734,7 +793,7 @@ static int white_list_show(struct seq_file *f, void *ptr)
struct bdaddr_list *b;
hci_dev_lock(hdev);
- list_for_each_entry(b, &hdev->le_white_list, list)
+ list_for_each_entry(b, &hdev->le_accept_list, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
hci_dev_unlock(hdev);
@@ -798,10 +857,12 @@ static int conn_min_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval)
+ hci_dev_lock(hdev);
+ if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_conn_min_interval = val;
hci_dev_unlock(hdev);
@@ -819,17 +880,19 @@ static int conn_min_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get,
- conn_min_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get,
+ conn_min_interval_set, "%llu\n");
static int conn_max_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval)
+ hci_dev_lock(hdev);
+ if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_conn_max_interval = val;
hci_dev_unlock(hdev);
@@ -847,8 +910,8 @@ static int conn_max_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get,
- conn_max_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get,
+ conn_max_interval_set, "%llu\n");
static int conn_latency_set(void *data, u64 val)
{
@@ -875,8 +938,8 @@ static int conn_latency_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get,
- conn_latency_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(conn_latency_fops, conn_latency_get,
+ conn_latency_set, "%llu\n");
static int supervision_timeout_set(void *data, u64 val)
{
@@ -903,8 +966,8 @@ static int supervision_timeout_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get,
- supervision_timeout_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get,
+ supervision_timeout_set, "%llu\n");
static int adv_channel_map_set(void *data, u64 val)
{
@@ -931,17 +994,19 @@ static int adv_channel_map_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get,
- adv_channel_map_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get,
+ adv_channel_map_set, "%llu\n");
static int adv_min_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval)
+ hci_dev_lock(hdev);
+ if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_adv_min_interval = val;
hci_dev_unlock(hdev);
@@ -959,17 +1024,19 @@ static int adv_min_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get,
- adv_min_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get,
+ adv_min_interval_set, "%llu\n");
static int adv_max_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval)
+ hci_dev_lock(hdev);
+ if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_adv_max_interval = val;
hci_dev_unlock(hdev);
@@ -987,17 +1054,19 @@ static int adv_max_interval_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
- adv_max_interval_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
+ adv_max_interval_set, "%llu\n");
static int min_key_size_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val > hdev->le_max_key_size || val < SMP_MIN_ENC_KEY_SIZE)
+ hci_dev_lock(hdev);
+ if (val > hdev->le_max_key_size || val < SMP_MIN_ENC_KEY_SIZE) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_min_key_size = val;
hci_dev_unlock(hdev);
@@ -1015,17 +1084,19 @@ static int min_key_size_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(min_key_size_fops, min_key_size_get,
- min_key_size_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(min_key_size_fops, min_key_size_get,
+ min_key_size_set, "%llu\n");
static int max_key_size_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
- if (val > SMP_MAX_ENC_KEY_SIZE || val < hdev->le_min_key_size)
+ hci_dev_lock(hdev);
+ if (val > SMP_MAX_ENC_KEY_SIZE || val < hdev->le_min_key_size) {
+ hci_dev_unlock(hdev);
return -EINVAL;
+ }
- hci_dev_lock(hdev);
hdev->le_max_key_size = val;
hci_dev_unlock(hdev);
@@ -1043,8 +1114,8 @@ static int max_key_size_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(max_key_size_fops, max_key_size_get,
- max_key_size_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(max_key_size_fops, max_key_size_get,
+ max_key_size_set, "%llu\n");
static int auth_payload_timeout_set(void *data, u64 val)
{
@@ -1071,9 +1142,9 @@ static int auth_payload_timeout_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(auth_payload_timeout_fops,
- auth_payload_timeout_get,
- auth_payload_timeout_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(auth_payload_timeout_fops,
+ auth_payload_timeout_get,
+ auth_payload_timeout_set, "%llu\n");
static ssize_t force_no_mitm_read(struct file *file,
char __user *user_buf,
@@ -1101,7 +1172,7 @@ static ssize_t force_no_mitm_write(struct file *file,
return -EFAULT;
buf[buf_size] = '\0';
- if (strtobool(buf, &enable))
+ if (kstrtobool(buf, &enable))
return -EINVAL;
if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM))
@@ -1145,7 +1216,7 @@ void hci_debugfs_create_le(struct hci_dev *hdev)
&force_static_address_fops);
debugfs_create_u8("white_list_size", 0444, hdev->debugfs,
- &hdev->le_white_list_size);
+ &hdev->le_accept_list_size);
debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
&white_list_fops);
debugfs_create_u8("resolv_list_size", 0444, hdev->debugfs,
@@ -1194,9 +1265,131 @@ void hci_debugfs_create_conn(struct hci_conn *conn)
struct hci_dev *hdev = conn->hdev;
char name[6];
- if (IS_ERR_OR_NULL(hdev->debugfs))
+ if (IS_ERR_OR_NULL(hdev->debugfs) || conn->debugfs)
return;
snprintf(name, sizeof(name), "%u", conn->handle);
conn->debugfs = debugfs_create_dir(name, hdev->debugfs);
}
+
+static ssize_t dut_mode_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ char buf[3];
+
+ buf[0] = hci_dev_test_flag(hdev, HCI_DUT_MODE) ? 'Y' : 'N';
+ buf[1] = '\n';
+ buf[2] = '\0';
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t dut_mode_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ struct sk_buff *skb;
+ bool enable;
+ int err;
+
+ if (!test_bit(HCI_UP, &hdev->flags))
+ return -ENETDOWN;
+
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
+
+ if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE))
+ return -EALREADY;
+
+ hci_req_sync_lock(hdev);
+ if (enable)
+ skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL,
+ HCI_CMD_TIMEOUT);
+ else
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL,
+ HCI_CMD_TIMEOUT);
+ hci_req_sync_unlock(hdev);
+
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ kfree_skb(skb);
+
+ hci_dev_change_flag(hdev, HCI_DUT_MODE);
+
+ return count;
+}
+
+static const struct file_operations dut_mode_fops = {
+ .open = simple_open,
+ .read = dut_mode_read,
+ .write = dut_mode_write,
+ .llseek = default_llseek,
+};
+
+static ssize_t vendor_diag_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ char buf[3];
+
+ buf[0] = hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) ? 'Y' : 'N';
+ buf[1] = '\n';
+ buf[2] = '\0';
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hci_dev *hdev = file->private_data;
+ bool enable;
+ int err;
+
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
+
+ /* When the diagnostic flags are not persistent and the transport
+ * is not active or in user channel operation, then there is no need
+ * for the vendor callback. Instead just store the desired value and
+ * the setting will be programmed when the controller gets powered on.
+ */
+ if (hci_test_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_DIAG) &&
+ (!test_bit(HCI_RUNNING, &hdev->flags) ||
+ hci_dev_test_flag(hdev, HCI_USER_CHANNEL)))
+ goto done;
+
+ hci_req_sync_lock(hdev);
+ err = hdev->set_diag(hdev, enable);
+ hci_req_sync_unlock(hdev);
+
+ if (err < 0)
+ return err;
+
+done:
+ if (enable)
+ hci_dev_set_flag(hdev, HCI_VENDOR_DIAG);
+ else
+ hci_dev_clear_flag(hdev, HCI_VENDOR_DIAG);
+
+ return count;
+}
+
+static const struct file_operations vendor_diag_fops = {
+ .open = simple_open,
+ .read = vendor_diag_read,
+ .write = vendor_diag_write,
+ .llseek = default_llseek,
+};
+
+void hci_debugfs_create_basic(struct hci_dev *hdev)
+{
+ debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev,
+ &dut_mode_fops);
+
+ if (hdev->set_diag)
+ debugfs_create_file("vendor_diag", 0644, hdev->debugfs, hdev,
+ &vendor_diag_fops);
+}
generated by cgit (git 2.34.1) at 2025-12-25 13:10:08 +0000