Return-Path: From: Brian Gix To: linux-bluetooth@vger.kernel.org Cc: padovan@profusion.mobi, rshaffer@codeaurora.org, Brian Gix Subject: [PATCH] Added enc_read_blob_req() API to ATT transport, to enable the reading of attributes that exceed the length of the MTU. Date: Tue, 14 Dec 2010 11:50:46 -0800 Message-Id: <1292356246-24012-2-git-send-email-bgix@codeaurora.org> In-Reply-To: <1292356246-24012-1-git-send-email-bgix@codeaurora.org> References: <1292356246-24012-1-git-send-email-bgix@codeaurora.org> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: -- Brian Gix bgix@codeaurora.org Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum --- attrib/att.c | 19 +++++++++++++++++++ attrib/att.h | 2 ++ 2 files changed, 21 insertions(+), 0 deletions(-) diff --git a/attrib/att.c b/attrib/att.c index 445b192..f8dbc02 100644 --- a/attrib/att.c +++ b/attrib/att.c @@ -542,6 +542,25 @@ uint16_t enc_read_req(uint16_t handle, uint8_t *pdu, int len) return min_len; } +uint16_t enc_read_blob_req(uint16_t handle, uint16_t offset, uint8_t *pdu, + int len) +{ + const uint16_t min_len = sizeof(pdu[0]) + sizeof(handle) + + sizeof(offset); + + if (pdu == NULL) + return 0; + + if (len < min_len) + return 0; + + pdu[0] = ATT_OP_READ_BLOB_REQ; + att_put_u16(handle, &pdu[1]); + att_put_u16(offset, &pdu[3]); + + return min_len; +} + uint16_t dec_read_req(const uint8_t *pdu, int len, uint16_t *handle) { const uint16_t min_len = sizeof(pdu[0]) + sizeof(*handle); diff --git a/attrib/att.h b/attrib/att.h index 2c8c724..0b8612e 100644 --- a/attrib/att.h +++ b/attrib/att.h @@ -202,6 +202,8 @@ uint16_t enc_write_req(uint16_t handle, const uint8_t *value, int vlen, uint16_t dec_write_req(const uint8_t *pdu, int len, uint16_t *handle, uint8_t *value, int *vlen); uint16_t enc_read_req(uint16_t handle, uint8_t *pdu, int len); +uint16_t enc_read_blob_req(uint16_t handle, uint16_t offset, uint8_t *pdu, + int len); uint16_t dec_read_req(const uint8_t *pdu, int len, uint16_t *handle); uint16_t enc_read_resp(uint8_t *value, int vlen, uint8_t *pdu, int len); uint16_t dec_read_resp(const uint8_t *pdu, int len, uint8_t *value, int *vlen); -- 1.7.1