Re: [PATCH] Bluetooth: Add mgmt command for fast connectable mode

From: "Gustavo F. Padovan" <padovan@profusion.mobi>
To: Antti Julku <antti.julku@nokia.com>
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: [PATCH] Bluetooth: Add mgmt command for fast connectable mode
Date: Tue, 21 Jun 2011 15:01:20 -0300	[thread overview]
Message-ID: <20110621180120.GB2628@joana> (raw)
In-Reply-To: <1308303828-1982-1-git-send-email-antti.julku@nokia.com>

Hi Antti,

* Antti Julku <antti.julku@nokia.com> [2011-06-17 12:43:48 +0300]:

> Add command to management interface for enabling/disabling the
> fast connectable mode.
> 
> Signed-off-by: Antti Julku <antti.julku@nokia.com>
> ---
>  include/net/bluetooth/hci.h  |   10 +++++++
>  include/net/bluetooth/mgmt.h |    5 +++
>  net/bluetooth/mgmt.c         |   62 ++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 77 insertions(+), 0 deletions(-)
> 
> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
> index 65345cd..d7b9600 100644
> --- a/include/net/bluetooth/hci.h
> +++ b/include/net/bluetooth/hci.h
> @@ -698,6 +698,16 @@ struct hci_rp_read_bd_addr {
>  	bdaddr_t bdaddr;
>  } __packed;
>  
> +#define HCI_OP_WRITE_PAGE_SCAN_ACTIVITY	0x0c1c
> +struct hci_cp_write_page_scan_activity {
> +	__le16   interval;
> +	__le16   window;
> +} __packed;
> +
> +#define HCI_OP_WRITE_PAGE_SCAN_TYPE	0x0c47
> +	#define PAGE_SCAN_TYPE_STANDARD		0x00
> +	#define PAGE_SCAN_TYPE_INTERLACED	0x01
> +
>  #define HCI_OP_LE_SET_EVENT_MASK	0x2001
>  struct hci_cp_le_set_event_mask {
>  	__u8     mask[8];
> diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
> index 45bea25..7196d04 100644
> --- a/include/net/bluetooth/mgmt.h
> +++ b/include/net/bluetooth/mgmt.h
> @@ -209,6 +209,11 @@ struct mgmt_cp_unblock_device {
>  	bdaddr_t bdaddr;
>  } __packed;
>  
> +#define MGMT_OP_SET_FAST_CONNECTABLE	0x001F
> +struct mgmt_cp_set_fast_connectable {
> +	__u8 enable;
> +} __packed;
> +
>  #define MGMT_EV_CMD_COMPLETE		0x0001
>  struct mgmt_ev_cmd_complete {
>  	__le16 opcode;
> diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> index 64c0418..b4bed16 100644
> --- a/net/bluetooth/mgmt.c
> +++ b/net/bluetooth/mgmt.c
> @@ -1730,6 +1730,64 @@ static int unblock_device(struct sock *sk, u16 index, unsigned char *data,
>  	return err;
>  }
>  
> +static int set_fast_connectable(struct sock *sk, u16 index,
> +					unsigned char *data, u16 len)
> +{
> +	struct hci_dev *hdev;
> +	struct mgmt_cp_set_fast_connectable *cp;

set cp = data here.

> +	struct hci_cp_write_page_scan_activity acp;
> +	u8 type;
> +	int err;
> +
> +	BT_DBG("hci%u", index);
> +
> +	cp = (void *) data;
> +
> +	if (len != sizeof(*cp))
> +		return cmd_status(sk, index, MGMT_OP_SET_FAST_CONNECTABLE,
> +								EINVAL);
> +
> +	hdev = hci_dev_get(index);
> +	if (!hdev)
> +		return cmd_status(sk, index, MGMT_OP_SET_FAST_CONNECTABLE,
> +								ENODEV);
> +
> +	hci_dev_lock(hdev);
> +
> +	if (cp->enable) {
> +		type = PAGE_SCAN_TYPE_INTERLACED;
> +		acp.interval = 0x0024;	/* 22.5 msec page scan interval */
> +	} else {
> +		type = PAGE_SCAN_TYPE_STANDARD;	/* default */
> +		acp.interval = 0x0800;	/* default 1.28 sec page scan */
> +	}
> +
> +	acp.window = 0x0012;	/* default 11.25 msec page scan window */
> +
> +	err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
> +						sizeof(acp), &acp);
> +	if (err < 0) {
> +		err = cmd_status(sk, index, MGMT_OP_SET_FAST_CONNECTABLE,
> +								-err);
> +		goto failed;
> +	}
> +
> +	err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
> +	if (err < 0) {
> +		err = cmd_status(sk, index, MGMT_OP_SET_FAST_CONNECTABLE,
> +								-err);
> +		goto failed;
> +	}
> +
> +	err = cmd_complete(sk, index, MGMT_OP_SET_FAST_CONNECTABLE,
> +							NULL, 0);
> +failed:

Call this "done" as the normal code path ends here as well.

	Gustavo