Hi Andre,
* Andre Guedes <andre.guedes@xxxxxxxxxxxxx> [2011-10-06 17:30:39 -0300]:
> Hi Gustavo,
>
> On Oct 6, 2011, at 3:50 PM, Gustavo Padovan wrote:
>
> > Hi Andre,
> >
> > * Andre Guedes <andre.guedes@xxxxxxxxxxxxx> [2011-10-05 20:20:40 -0300]:
> >
> >> This patch prepares start_discovery() to support LE-Only and BR/EDR/LE
> >> discovery procedures (BR/EDR is already supported).
> >>
> >> Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
> >> ---
> >> include/net/bluetooth/hci.h | 1 +
> >> include/net/bluetooth/hci_core.h | 1 +
> >> net/bluetooth/mgmt.c | 12 +++++++++++-
> >> 3 files changed, 13 insertions(+), 1 deletions(-)
> >>
> >> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
> >> index aaf79af..1e11e7f 100644
> >> --- a/include/net/bluetooth/hci.h
> >> +++ b/include/net/bluetooth/hci.h
> >> @@ -202,6 +202,7 @@ enum {
> >>
> >> #define LMP_EV4 0x01
> >> #define LMP_EV5 0x02
> >> +#define LMP_NO_BREDR 0x20
> >> #define LMP_LE 0x40
> >>
> >> #define LMP_SNIFF_SUBR 0x02
> >> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> >> index 36e15cc..e0c9790 100644
> >> --- a/include/net/bluetooth/hci_core.h
> >> +++ b/include/net/bluetooth/hci_core.h
> >> @@ -613,6 +613,7 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
> >> #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
> >> #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
> >> #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
> >> +#define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
> >> #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
> >>
> >> /* ----- Extended LMP capabilities ----- */
> >> diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> >> index 58cf33a..0040e37 100644
> >> --- a/net/bluetooth/mgmt.c
> >> +++ b/net/bluetooth/mgmt.c
> >> @@ -32,6 +32,8 @@
> >> #define MGMT_VERSION 0
> >> #define MGMT_REVISION 1
> >>
> >> +#define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */
> >> +
> >> struct pending_cmd {
> >> struct list_head list;
> >> __u16 opcode;
> >> @@ -1632,7 +1634,15 @@ static int start_discovery(struct sock *sk, u16 index)
> >> goto failed;
> >> }
> >>
> >> - err = hci_do_inquiry(hdev, 0x08);
> >> + if (lmp_host_le_capable(hdev)) {
> >> + if (lmp_bredr_capable(hdev))
> >> + err = -ENOSYS;
> >> + else
> >> + err = -ENOSYS;
> >
> > This seems a lot wrong.
>
> As the patch message says it prepares for supporting LE-only and
> BR/EDR/LE discovery procedures. If you take a look further in the
> patch series you'll see these -ENOSYS being replaced as soon as
> those procedures are supported. Please take a look at patches 14
> and 15.
>
> Anyway, if you don't like this, I can squash it in patch 14. Please
> let me know.
Please do that, makes more sense to me.
Gustavo
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