From 0a85b964e141a4b8db6eaf500ceace12f8f52f93 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Thu, 6 Jul 2006 13:09:02 +0200 Subject: [PATCH 1/1] [Bluetooth] Integrate services into the driver model This patch integrates the services of the Bluetooth protocols RFCOMM, BNEP and HIDP into the driver model. This makes it possible to assign the virtual TTY, network and input devices to a specific Bluetooth connection. Signed-off-by: Marcel Holtmann --- net/bluetooth/bnep/core.c | 26 ++++++++++++++++++++++++-- net/bluetooth/hidp/core.c | 23 +++++++++++++++++++++++ net/bluetooth/rfcomm/tty.c | 21 ++++++++++++++++++++- 3 files changed, 67 insertions(+), 3 deletions(-) diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index e620061fb50f..2312d050eeed 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -51,6 +51,7 @@ #include #include +#include #include #include "bnep.h" @@ -515,6 +516,26 @@ static int bnep_session(void *arg) return 0; } +static struct device *bnep_get_device(struct bnep_session *session) +{ + bdaddr_t *src = &bt_sk(session->sock->sk)->src; + bdaddr_t *dst = &bt_sk(session->sock->sk)->dst; + struct hci_dev *hdev; + struct hci_conn *conn; + + hdev = hci_get_route(dst, src); + if (!hdev) + return NULL; + + conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); + if (!conn) + return NULL; + + hci_dev_put(hdev); + + return &conn->dev; +} + int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) { struct net_device *dev; @@ -534,7 +555,6 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) if (!dev) return -ENOMEM; - down_write(&bnep_session_sem); ss = __bnep_get_session(dst); @@ -551,7 +571,7 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) memcpy(s->eh.h_source, &dst, ETH_ALEN); memcpy(dev->dev_addr, s->eh.h_dest, ETH_ALEN); - s->dev = dev; + s->dev = dev; s->sock = sock; s->role = req->role; s->state = BT_CONNECTED; @@ -568,6 +588,8 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) bnep_set_default_proto_filter(s); #endif + SET_NETDEV_DEV(dev, bnep_get_device(s)); + err = register_netdev(dev); if (err) { goto failed; diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index c6e3a2c27c6e..03b5dadb4951 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -40,6 +40,7 @@ #include #include +#include #include #include "hidp.h" @@ -528,6 +529,26 @@ static int hidp_session(void *arg) return 0; } +static struct device *hidp_get_device(struct hidp_session *session) +{ + bdaddr_t *src = &bt_sk(session->ctrl_sock->sk)->src; + bdaddr_t *dst = &bt_sk(session->ctrl_sock->sk)->dst; + struct hci_dev *hdev; + struct hci_conn *conn; + + hdev = hci_get_route(dst, src); + if (!hdev) + return NULL; + + conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); + if (!conn) + return NULL; + + hci_dev_put(hdev); + + return &conn->dev; +} + static inline void hidp_setup_input(struct hidp_session *session, struct hidp_connadd_req *req) { struct input_dev *input = session->input; @@ -566,6 +587,8 @@ static inline void hidp_setup_input(struct hidp_session *session, struct hidp_co input->relbit[0] |= BIT(REL_WHEEL); } + input->cdev.dev = hidp_get_device(session); + input->event = hidp_input_event; input_register_device(input); diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index bd8d671a0ba6..26f322737db0 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -38,6 +38,7 @@ #include #include +#include #include #ifndef CONFIG_BT_RFCOMM_DEBUG @@ -161,6 +162,24 @@ static inline struct rfcomm_dev *rfcomm_dev_get(int id) return dev; } +static struct device *rfcomm_get_device(struct rfcomm_dev *dev) +{ + struct hci_dev *hdev; + struct hci_conn *conn; + + hdev = hci_get_route(&dev->dst, &dev->src); + if (!hdev) + return NULL; + + conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &dev->dst); + if (!conn) + return NULL; + + hci_dev_put(hdev); + + return &conn->dev; +} + static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc) { struct rfcomm_dev *dev; @@ -244,7 +263,7 @@ out: return err; } - tty_register_device(rfcomm_tty_driver, dev->id, NULL); + tty_register_device(rfcomm_tty_driver, dev->id, rfcomm_get_device(dev)); return dev->id; } -- 2.39.2