a2mp.c revision 93c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191a
1466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko/* 2466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved. 3466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko Copyright (c) 2011,2012 Intel Corp. 4466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 5466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko This program is free software; you can redistribute it and/or modify 6466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko it under the terms of the GNU General Public License version 2 and 7466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko only version 2 as published by the Free Software Foundation. 8466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 9466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko This program is distributed in the hope that it will be useful, 10466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko but WITHOUT ANY WARRANTY; without even the implied warranty of 11466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko GNU General Public License for more details. 13466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko*/ 14466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 15466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko#include <net/bluetooth/bluetooth.h> 16466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko#include <net/bluetooth/hci_core.h> 17466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko#include <net/bluetooth/l2cap.h> 189740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko#include <net/bluetooth/a2mp.h> 19903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko#include <net/bluetooth/amp.h> 20466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 21f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko/* Global AMP Manager list */ 22f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei EmeltchenkoLIST_HEAD(amp_mgr_list); 23f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei EmeltchenkoDEFINE_MUTEX(amp_mgr_list_lock); 24f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 25f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko/* A2MP build & send command helper functions */ 26f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenkostatic struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data) 27f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko{ 28f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko struct a2mp_cmd *cmd; 29f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko int plen; 30f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 31f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko plen = sizeof(*cmd) + len; 32f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko cmd = kzalloc(plen, GFP_KERNEL); 33f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko if (!cmd) 34f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko return NULL; 35f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 36f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko cmd->code = code; 37f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko cmd->ident = ident; 38f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko cmd->len = cpu_to_le16(len); 39f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 40f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko memcpy(cmd->data, data, len); 41f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 42f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko return cmd; 43f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko} 44f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 458e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenkovoid a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data) 46f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko{ 47f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko struct l2cap_chan *chan = mgr->a2mp_chan; 48f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko struct a2mp_cmd *cmd; 49f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko u16 total_len = len + sizeof(*cmd); 50f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko struct kvec iv; 51f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko struct msghdr msg; 52f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 53f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko cmd = __a2mp_build(code, ident, len, data); 54f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko if (!cmd) 55f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko return; 56f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 57f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko iv.iov_base = cmd; 58f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko iv.iov_len = total_len; 59f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 60f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko memset(&msg, 0, sizeof(msg)); 61f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 62f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko msg.msg_iov = (struct iovec *) &iv; 63f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko msg.msg_iovlen = 1; 64f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 65f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko l2cap_chan_send(chan, &msg, total_len, 0); 66f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 67f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko kfree(cmd); 68f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko} 69f6d3c6e783b0e9f75b18232f8ff8cd5dbc3f7301Andrei Emeltchenko 70aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenkostatic u8 __next_ident(struct amp_mgr *mgr) 71aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko{ 72aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko if (++mgr->ident == 0) 73aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko mgr->ident = 1; 74aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 75aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko return mgr->ident; 76aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko} 77aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 788598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenkostatic inline void __a2mp_cl_bredr(struct a2mp_cl *cl) 798598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko{ 808598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl->id = 0; 818598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl->type = 0; 828598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl->status = 1; 838598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko} 848598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 858598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko/* hci_dev_list shall be locked */ 868598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenkostatic void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl) 878598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko{ 888598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko int i = 0; 898598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko struct hci_dev *hdev; 908598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 918598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko __a2mp_cl_bredr(cl); 928598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 938598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko list_for_each_entry(hdev, &hci_dev_list, list) { 948598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko /* Iterate through AMP controllers */ 958598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko if (hdev->id == HCI_BREDR_ID) 968598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko continue; 978598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 988598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko /* Starting from second entry */ 998598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko if (++i >= num_ctrl) 1008598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko return; 1018598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1028598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl[i].id = hdev->id; 1038598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl[i].type = hdev->amp_type; 1048598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko cl[i].status = hdev->amp_status; 1058598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko } 1068598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko} 1078598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 10821dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko/* Processing A2MP messages */ 10921dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenkostatic int a2mp_command_rej(struct amp_mgr *mgr, struct sk_buff *skb, 11021dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko struct a2mp_cmd *hdr) 11121dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko{ 11221dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko struct a2mp_cmd_rej *rej = (void *) skb->data; 11321dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 11421dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*rej)) 11521dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko return -EINVAL; 11621dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 11721dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko BT_DBG("ident %d reason %d", hdr->ident, le16_to_cpu(rej->reason)); 11821dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 11921dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko skb_pull(skb, sizeof(*rej)); 12021dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 12121dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko return 0; 12221dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko} 12321dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 1248598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenkostatic int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, 1258598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko struct a2mp_cmd *hdr) 1268598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko{ 1278598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko struct a2mp_discov_req *req = (void *) skb->data; 1288598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko u16 len = le16_to_cpu(hdr->len); 1298598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko struct a2mp_discov_rsp *rsp; 1308598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko u16 ext_feat; 1318598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko u8 num_ctrl; 1328598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1338598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko if (len < sizeof(*req)) 1348598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko return -EINVAL; 1358598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1368598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko skb_pull(skb, sizeof(*req)); 1378598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1388598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko ext_feat = le16_to_cpu(req->ext_feat); 1398598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1408598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko BT_DBG("mtu %d efm 0x%4.4x", le16_to_cpu(req->mtu), ext_feat); 1418598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1428598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko /* check that packet is not broken for now */ 1438598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko while (ext_feat & A2MP_FEAT_EXT) { 1448598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko if (len < sizeof(ext_feat)) 1458598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko return -EINVAL; 1468598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1478598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko ext_feat = get_unaligned_le16(skb->data); 1488598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko BT_DBG("efm 0x%4.4x", ext_feat); 1498598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko len -= sizeof(ext_feat); 1508598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko skb_pull(skb, sizeof(ext_feat)); 1518598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko } 1528598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1538598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko read_lock(&hci_dev_list_lock); 1548598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1558598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko num_ctrl = __hci_num_ctrl(); 1568598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp); 1578598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko rsp = kmalloc(len, GFP_ATOMIC); 1588598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko if (!rsp) { 1598598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko read_unlock(&hci_dev_list_lock); 1608598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko return -ENOMEM; 1618598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko } 1628598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1638598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU); 1648598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko rsp->ext_feat = 0; 1658598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1668598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko __a2mp_add_cl(mgr, rsp->cl, num_ctrl); 1678598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1688598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko read_unlock(&hci_dev_list_lock); 1698598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1708598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko a2mp_send(mgr, A2MP_DISCOVER_RSP, hdr->ident, len, rsp); 1718598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 1728598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko kfree(rsp); 1738598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko return 0; 1748598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko} 1758598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 176aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenkostatic int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb, 177aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko struct a2mp_cmd *hdr) 178aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko{ 179aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko struct a2mp_discov_rsp *rsp = (void *) skb->data; 180aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko u16 len = le16_to_cpu(hdr->len); 181aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko struct a2mp_cl *cl; 182aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko u16 ext_feat; 183aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 184aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko if (len < sizeof(*rsp)) 185aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko return -EINVAL; 186aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 187aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko len -= sizeof(*rsp); 188aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko skb_pull(skb, sizeof(*rsp)); 189aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 190aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko ext_feat = le16_to_cpu(rsp->ext_feat); 191aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 192aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko BT_DBG("mtu %d efm 0x%4.4x", le16_to_cpu(rsp->mtu), ext_feat); 193aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 194aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko /* check that packet is not broken for now */ 195aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko while (ext_feat & A2MP_FEAT_EXT) { 196aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko if (len < sizeof(ext_feat)) 197aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko return -EINVAL; 198aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 199aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko ext_feat = get_unaligned_le16(skb->data); 200aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko BT_DBG("efm 0x%4.4x", ext_feat); 201aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko len -= sizeof(ext_feat); 202aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko skb_pull(skb, sizeof(ext_feat)); 203aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko } 204aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 205aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko cl = (void *) skb->data; 206aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko while (len >= sizeof(*cl)) { 207aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type, 208aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko cl->status); 209aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 210aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) { 211aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko struct a2mp_info_req req; 212aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 213aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko req.id = cl->id; 214aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko a2mp_send(mgr, A2MP_GETINFO_REQ, __next_ident(mgr), 215aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko sizeof(req), &req); 216aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko } 217aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 218aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko len -= sizeof(*cl); 219aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko cl = (void *) skb_pull(skb, sizeof(*cl)); 220aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko } 221aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 222aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko return 0; 223aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko} 224aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 225329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenkostatic int a2mp_change_notify(struct amp_mgr *mgr, struct sk_buff *skb, 226329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko struct a2mp_cmd *hdr) 227329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko{ 228329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko struct a2mp_cl *cl = (void *) skb->data; 229329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko 230329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko while (skb->len >= sizeof(*cl)) { 231329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko BT_DBG("Controller id %d type %d status %d", cl->id, cl->type, 232329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko cl->status); 233329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko cl = (struct a2mp_cl *) skb_pull(skb, sizeof(*cl)); 234329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko } 235329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko 236329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko /* TODO send A2MP_CHANGE_RSP */ 237329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko 238329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko return 0; 239329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko} 240329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko 24147f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenkostatic int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb, 24247f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko struct a2mp_cmd *hdr) 24347f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko{ 24447f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko struct a2mp_info_req *req = (void *) skb->data; 24547f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko struct hci_dev *hdev; 24647f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 24747f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*req)) 24847f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko return -EINVAL; 24947f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 25047f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko BT_DBG("id %d", req->id); 25147f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 25247f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko hdev = hci_dev_get(req->id); 2538e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko if (!hdev) { 2548e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko struct a2mp_info_rsp rsp; 2558e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 2568e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.id = req->id; 2578e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.status = A2MP_STATUS_INVALID_CTRL_ID; 2588e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 2598e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp), 2608e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko &rsp); 26147f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko } 26247f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 2638e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko if (hdev->dev_type != HCI_BREDR) { 2648e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko mgr->state = READ_LOC_AMP_INFO; 2658e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL); 2668e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko } 26747f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 2688e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko hci_dev_put(hdev); 26947f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 27047f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko skb_pull(skb, sizeof(*req)); 27147f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko return 0; 27247f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko} 27347f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 2740d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenkostatic int a2mp_getinfo_rsp(struct amp_mgr *mgr, struct sk_buff *skb, 2750d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko struct a2mp_cmd *hdr) 2760d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko{ 2770d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko struct a2mp_info_rsp *rsp = (struct a2mp_info_rsp *) skb->data; 2780d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko struct a2mp_amp_assoc_req req; 2790d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko struct amp_ctrl *ctrl; 2800d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2810d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*rsp)) 2820d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko return -EINVAL; 2830d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2840d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko BT_DBG("id %d status 0x%2.2x", rsp->id, rsp->status); 2850d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2860d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko if (rsp->status) 2870d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko return -EINVAL; 2880d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2890d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko ctrl = amp_ctrl_add(mgr); 2900d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko if (!ctrl) 2910d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko return -ENOMEM; 2920d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2930d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko ctrl->id = rsp->id; 2940d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2950d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko req.id = rsp->id; 2960d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko a2mp_send(mgr, A2MP_GETAMPASSOC_REQ, __next_ident(mgr), sizeof(req), 2970d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko &req); 2980d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 2990d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko skb_pull(skb, sizeof(*rsp)); 3000d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko return 0; 3010d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko} 3020d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 303a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenkostatic int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb, 304a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko struct a2mp_cmd *hdr) 305a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko{ 306a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko struct a2mp_amp_assoc_req *req = (void *) skb->data; 307a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko struct hci_dev *hdev; 308903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko struct amp_mgr *tmp; 309a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 310a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*req)) 311a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko return -EINVAL; 312a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 313a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko BT_DBG("id %d", req->id); 314a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 315903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko /* Make sure that other request is not processed */ 316903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC); 317903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 318a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko hdev = hci_dev_get(req->id); 319903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko if (!hdev || hdev->amp_type == HCI_BREDR || tmp) { 320a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko struct a2mp_amp_assoc_rsp rsp; 321a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko rsp.id = req->id; 322903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 323903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko if (tmp) { 324903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp.status = A2MP_STATUS_COLLISION_OCCURED; 325903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko amp_mgr_put(tmp); 326903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko } else { 327903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp.status = A2MP_STATUS_INVALID_CTRL_ID; 328903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko } 329a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 330a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, hdr->ident, sizeof(rsp), 331a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko &rsp); 332903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 333903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko goto done; 334a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko } 335a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 336903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko amp_read_loc_assoc(hdev, mgr); 337a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 338903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenkodone: 339a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko if (hdev) 340a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko hci_dev_put(hdev); 341a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 342a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko skb_pull(skb, sizeof(*req)); 343a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko return 0; 344a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko} 345a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 3469a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenkostatic int a2mp_getampassoc_rsp(struct amp_mgr *mgr, struct sk_buff *skb, 3479a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko struct a2mp_cmd *hdr) 3489a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko{ 3499a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko struct a2mp_amp_assoc_rsp *rsp = (void *) skb->data; 3509a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko u16 len = le16_to_cpu(hdr->len); 3519a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko struct hci_dev *hdev; 3529a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko struct amp_ctrl *ctrl; 3539a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko struct hci_conn *hcon; 3549a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3559a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (len < sizeof(*rsp)) 3569a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko return -EINVAL; 3579a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3589a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko BT_DBG("id %d status 0x%2.2x assoc len %u", rsp->id, rsp->status, 3599a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko len - sizeof(*rsp)); 3609a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3619a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (rsp->status) 3629a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko return -EINVAL; 3639a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3649a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko /* Save remote ASSOC data */ 3659a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko ctrl = amp_ctrl_lookup(mgr, rsp->id); 3669a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (ctrl) { 3679a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko u8 *assoc, assoc_len = len - sizeof(*rsp); 3689a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3699a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko assoc = kzalloc(assoc_len, GFP_KERNEL); 3709a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (!assoc) { 3719a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko amp_ctrl_put(ctrl); 3729a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko return -ENOMEM; 3739a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko } 3749a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3759a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko memcpy(assoc, rsp->amp_assoc, assoc_len); 3769a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko ctrl->assoc = assoc; 3779a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko ctrl->assoc_len = assoc_len; 3789a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko ctrl->assoc_rem_len = assoc_len; 3799a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko ctrl->assoc_len_so_far = 0; 3809a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3819a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko amp_ctrl_put(ctrl); 3829a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko } 3839a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3849a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko /* Create Phys Link */ 3859a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko hdev = hci_dev_get(rsp->id); 3869a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (!hdev) 3879a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko return -EINVAL; 3889a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3899a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko hcon = phylink_add(hdev, mgr, rsp->id); 3909a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko if (!hcon) 3919a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko goto done; 3929a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3939a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko BT_DBG("Created hcon %p: loc:%d -> rem:%d", hcon, hdev->id, rsp->id); 3949a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 3959a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenkodone: 3969a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko hci_dev_put(hdev); 3979a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko skb_pull(skb, len); 3989a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko return 0; 3999a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko} 4009a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 401e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenkostatic int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb, 402e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko struct a2mp_cmd *hdr) 403e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko{ 404e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko struct a2mp_physlink_req *req = (void *) skb->data; 405e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 406e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko struct a2mp_physlink_rsp rsp; 407e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko struct hci_dev *hdev; 408cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko struct hci_conn *hcon; 409e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 410e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*req)) 411e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko return -EINVAL; 412e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 413e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko BT_DBG("local_id %d, remote_id %d", req->local_id, req->remote_id); 414e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 415e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko rsp.local_id = req->remote_id; 416e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko rsp.remote_id = req->local_id; 417e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 418e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko hdev = hci_dev_get(req->remote_id); 419e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko if (!hdev || hdev->amp_type != HCI_AMP) { 420e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko rsp.status = A2MP_STATUS_INVALID_CTRL_ID; 421e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko goto send_rsp; 422e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko } 423e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 424e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko /* TODO process physlink create */ 425e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 426cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko hcon = phylink_add(hdev, mgr, req->local_id); 427cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko if (hcon) { 428cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko BT_DBG("hcon %p", hcon); 429cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko 430cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko rsp.status = A2MP_STATUS_SUCCESS; 431cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko } else { 432cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko rsp.status = A2MP_STATUS_UNABLE_START_LINK_CREATION; 433cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko } 434e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 435e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenkosend_rsp: 436e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko if (hdev) 437e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko hci_dev_put(hdev); 438e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 439e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko a2mp_send(mgr, A2MP_CREATEPHYSLINK_RSP, hdr->ident, sizeof(rsp), 440e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko &rsp); 441e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 442e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko skb_pull(skb, le16_to_cpu(hdr->len)); 443e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko return 0; 444e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko} 445e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 4466113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenkostatic int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb, 4476113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko struct a2mp_cmd *hdr) 4486113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko{ 4496113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko struct a2mp_physlink_req *req = (void *) skb->data; 4506113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko struct a2mp_physlink_rsp rsp; 4516113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko struct hci_dev *hdev; 452cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko struct hci_conn *hcon; 4536113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 4546113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko if (le16_to_cpu(hdr->len) < sizeof(*req)) 4556113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko return -EINVAL; 4566113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 4576113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko BT_DBG("local_id %d remote_id %d", req->local_id, req->remote_id); 4586113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 4596113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko rsp.local_id = req->remote_id; 4606113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko rsp.remote_id = req->local_id; 4616113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko rsp.status = A2MP_STATUS_SUCCESS; 4626113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 463cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko hdev = hci_dev_get(req->remote_id); 4646113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko if (!hdev) { 4656113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko rsp.status = A2MP_STATUS_INVALID_CTRL_ID; 4666113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko goto send_rsp; 4676113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko } 4686113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 469cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst); 470cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko if (!hcon) { 471cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko BT_ERR("No phys link exist"); 472cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS; 473cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko goto clean; 474cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko } 475cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenko 4766113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko /* TODO Disconnect Phys Link here */ 4776113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 478cb8488c0b60a947c0ef4a1a94573a7fefd3f20b4Andrei Emeltchenkoclean: 4796113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko hci_dev_put(hdev); 4806113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 4816113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenkosend_rsp: 4826113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko a2mp_send(mgr, A2MP_DISCONNPHYSLINK_RSP, hdr->ident, sizeof(rsp), &rsp); 4836113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 4846113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko skb_pull(skb, sizeof(*req)); 4856113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko return 0; 4866113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko} 4876113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 488f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenkostatic inline int a2mp_cmd_rsp(struct amp_mgr *mgr, struct sk_buff *skb, 489f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko struct a2mp_cmd *hdr) 490f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko{ 4918e8c7e36fb216d2d072116de3bec6130627ad691Andrei Emeltchenko BT_DBG("ident %d code 0x%2.2x", hdr->ident, hdr->code); 492f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko 493f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko skb_pull(skb, le16_to_cpu(hdr->len)); 494f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko return 0; 495f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko} 496f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko 4976b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko/* Handle A2MP signalling */ 4986b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenkostatic int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb) 4996b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko{ 500d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko struct a2mp_cmd *hdr; 5016b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko struct amp_mgr *mgr = chan->data; 5026b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko int err = 0; 5036b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5046b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko amp_mgr_get(mgr); 5056b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5066b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko while (skb->len >= sizeof(*hdr)) { 507d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko u16 len; 508d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko 509d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko hdr = (void *) skb->data; 510d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko len = le16_to_cpu(hdr->len); 5116b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5128e8c7e36fb216d2d072116de3bec6130627ad691Andrei Emeltchenko BT_DBG("code 0x%2.2x id %d len %u", hdr->code, hdr->ident, len); 5136b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5146b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko skb_pull(skb, sizeof(*hdr)); 5156b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5166b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko if (len > skb->len || !hdr->ident) { 5176b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko err = -EINVAL; 5186b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko break; 5196b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko } 5206b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5216b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko mgr->ident = hdr->ident; 5226b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5236b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko switch (hdr->code) { 5246b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_COMMAND_REJ: 52521dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko a2mp_command_rej(mgr, skb, hdr); 52621dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko break; 52721dbd2ce35f6d2b4aa5363be6c839cdb50644e11Andrei Emeltchenko 5286b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_DISCOVER_REQ: 5298598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko err = a2mp_discover_req(mgr, skb, hdr); 5308598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko break; 5318598d064cbf22b2d84c7cd8a9fcb97138baffe3fAndrei Emeltchenko 5326b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_CHANGE_NOTIFY: 533329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko err = a2mp_change_notify(mgr, skb, hdr); 534329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko break; 535329d81af29344a2ad2f9595310be74644421797aAndrei Emeltchenko 5366b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_GETINFO_REQ: 53747f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko err = a2mp_getinfo_req(mgr, skb, hdr); 53847f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko break; 53947f2d97d38816aaca94c9b6961c6eff1cfcd0bd6Andrei Emeltchenko 5406b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_GETAMPASSOC_REQ: 541a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko err = a2mp_getampassoc_req(mgr, skb, hdr); 542a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko break; 543a28381dc9ca3e54b0678e2cd7c68c1afb2d7cc76Andrei Emeltchenko 5446b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_CREATEPHYSLINK_REQ: 545e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko err = a2mp_createphyslink_req(mgr, skb, hdr); 546e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko break; 547e072f5dab22e7bf0a10daf854acc0fc271396ee7Andrei Emeltchenko 5486b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_DISCONNPHYSLINK_REQ: 5496113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko err = a2mp_discphyslink_req(mgr, skb, hdr); 5506113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko break; 5516113f84fc1a8962aed25f54a115b196e9aea151fAndrei Emeltchenko 5526b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_DISCOVER_RSP: 553aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko err = a2mp_discover_rsp(mgr, skb, hdr); 554aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko break; 555aa09537d80bf7e6282103618eb496f03e76f2953Andrei Emeltchenko 5566b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_GETINFO_RSP: 5570d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko err = a2mp_getinfo_rsp(mgr, skb, hdr); 5580d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko break; 5590d868de9d8760c76f6d4c6c777935c05ef272caaAndrei Emeltchenko 5606b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_GETAMPASSOC_RSP: 5619a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko err = a2mp_getampassoc_rsp(mgr, skb, hdr); 5629a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko break; 5639a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko 5649a5e94dbb4aa306742a47cbbcb0a44d4fc77a9e4Andrei Emeltchenko case A2MP_CHANGE_RSP: 5656b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_CREATEPHYSLINK_RSP: 5666b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko case A2MP_DISCONNPHYSLINK_RSP: 567f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko err = a2mp_cmd_rsp(mgr, skb, hdr); 568f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko break; 569f6410a849b76f56c78d989786eb427b85a559b9fAndrei Emeltchenko 5706b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko default: 5716b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko BT_ERR("Unknown A2MP sig cmd 0x%2.2x", hdr->code); 5726b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko err = -EINVAL; 5736b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko break; 5746b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko } 5756b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko } 5766b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5776b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko if (err) { 5786b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko struct a2mp_cmd_rej rej; 579d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko 5806b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko rej.reason = __constant_cpu_to_le16(0); 581d9fc1d54f6f8123909cdee4fa98ab1ebf6c8651cAndrei Emeltchenko hdr = (void *) skb->data; 5826b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5836b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko BT_DBG("Send A2MP Rej: cmd 0x%2.2x err %d", hdr->code, err); 5846b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5856b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko a2mp_send(mgr, A2MP_COMMAND_REJ, hdr->ident, sizeof(rej), 5866b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko &rej); 5876b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko } 5886b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5896b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko /* Always free skb and return success error code to prevent 5906b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko from sending L2CAP Disconnect over A2MP channel */ 5916b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko kfree_skb(skb); 5926b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5936b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko amp_mgr_put(mgr); 5946b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 5956b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko return 0; 5966b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko} 5976b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko 59846d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenkostatic void a2mp_chan_close_cb(struct l2cap_chan *chan) 59946d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko{ 6004af66c691f4e5c2db9bb00793669a548e9db1974Jaganath Kanakkassery l2cap_chan_put(chan); 60146d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko} 60246d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 60346d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenkostatic void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state) 60446d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko{ 60546d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko struct amp_mgr *mgr = chan->data; 60646d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 60746d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko if (!mgr) 60846d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko return; 60946d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 61046d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko BT_DBG("chan %p state %s", chan, state_to_string(state)); 61146d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 61246d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko chan->state = state; 61346d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 61446d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko switch (state) { 61546d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko case BT_CLOSED: 61646d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko if (mgr) 61746d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko amp_mgr_put(mgr); 61846d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko break; 61946d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko } 62046d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko} 62146d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 62246d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenkostatic struct sk_buff *a2mp_chan_alloc_skb_cb(struct l2cap_chan *chan, 62346d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko unsigned long len, int nb) 62446d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko{ 62546d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko return bt_skb_alloc(len, GFP_KERNEL); 62646d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko} 62746d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 628466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenkostatic struct l2cap_ops a2mp_chan_ops = { 629466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko .name = "L2CAP A2MP channel", 6306b44d9b8d96b37f72ccd7335b32f386a67b7f1f4Andrei Emeltchenko .recv = a2mp_chan_recv_cb, 63146d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko .close = a2mp_chan_close_cb, 63246d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko .state_change = a2mp_chan_state_change_cb, 63346d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko .alloc_skb = a2mp_chan_alloc_skb_cb, 63446d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko 63546d5c9088fbcc8a570bc271f77940973d9cae074Andrei Emeltchenko /* Not implemented for A2MP */ 6367e1af8a3a51dbf5dc7392fb294a0830f7e853aa8Gustavo Padovan .new_connection = l2cap_chan_no_new_connection, 6377e1af8a3a51dbf5dc7392fb294a0830f7e853aa8Gustavo Padovan .teardown = l2cap_chan_no_teardown, 6387e1af8a3a51dbf5dc7392fb294a0830f7e853aa8Gustavo Padovan .ready = l2cap_chan_no_ready, 639466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko}; 640466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 64193c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenkostatic struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked) 642466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko{ 643466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko struct l2cap_chan *chan; 644466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko int err; 645466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 646466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan = l2cap_chan_create(); 647466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko if (!chan) 648466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko return NULL; 649466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 650466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko BT_DBG("chan %p", chan); 651466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 652416fa7527d6bf658e5517ea36d2de9270be2c11eAndrei Emeltchenko chan->chan_type = L2CAP_CHAN_CONN_FIX_A2MP; 653466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->flush_to = L2CAP_DEFAULT_FLUSH_TO; 654466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 655466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->ops = &a2mp_chan_ops; 656466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 657466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko l2cap_chan_set_defaults(chan); 658466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->remote_max_tx = chan->max_tx; 659466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->remote_tx_win = chan->tx_win; 660466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 661466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->retrans_timeout = L2CAP_DEFAULT_RETRANS_TO; 662466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->monitor_timeout = L2CAP_DEFAULT_MONITOR_TO; 663466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 664466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko skb_queue_head_init(&chan->tx_q); 665466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 666466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->mode = L2CAP_MODE_ERTM; 667466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 668466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko err = l2cap_ertm_init(chan); 669466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko if (err < 0) { 670466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko l2cap_chan_del(chan, 0); 671466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko return NULL; 672466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko } 673466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 674466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->conf_state = 0; 675466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 67693c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko if (locked) 67793c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko __l2cap_chan_add(conn, chan); 67893c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko else 67993c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko l2cap_chan_add(conn, chan); 680466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 681466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->remote_mps = chan->omtu; 682466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->mps = chan->omtu; 683466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 684466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko chan->state = BT_CONNECTED; 685466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko 686466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko return chan; 687466f8004f364e9cb46d9124109972489eccfb404Andrei Emeltchenko} 6889740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 6899740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko/* AMP Manager functions */ 6909740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenkovoid amp_mgr_get(struct amp_mgr *mgr) 6919740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko{ 692a0dfe0ab6bf194805ce9d6a2dc81efab7a4a7fdaAndrei Emeltchenko BT_DBG("mgr %p orig refcnt %d", mgr, atomic_read(&mgr->kref.refcount)); 6939740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 6949740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko kref_get(&mgr->kref); 6959740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko} 6969740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 6979740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenkostatic void amp_mgr_destroy(struct kref *kref) 6989740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko{ 6999740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko struct amp_mgr *mgr = container_of(kref, struct amp_mgr, kref); 7009740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7019740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko BT_DBG("mgr %p", mgr); 7029740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 703f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_lock(&_mgr_list_lock); 704f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko list_del(&mgr->list); 705f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_unlock(&_mgr_list_lock); 706f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 70752c0d6e56b634b195e377192182391d526cdd5e4Andrei Emeltchenko amp_ctrl_list_flush(mgr); 7089740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko kfree(mgr); 7099740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko} 7109740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7119740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenkoint amp_mgr_put(struct amp_mgr *mgr) 7129740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko{ 713a0dfe0ab6bf194805ce9d6a2dc81efab7a4a7fdaAndrei Emeltchenko BT_DBG("mgr %p orig refcnt %d", mgr, atomic_read(&mgr->kref.refcount)); 7149740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7159740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko return kref_put(&mgr->kref, &_mgr_destroy); 7169740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko} 7179740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 71893c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenkostatic struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn, bool locked) 7199740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko{ 7209740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko struct amp_mgr *mgr; 7219740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko struct l2cap_chan *chan; 7229740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7239740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); 7249740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko if (!mgr) 7259740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko return NULL; 7269740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7279740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko BT_DBG("conn %p mgr %p", conn, mgr); 7289740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7299740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko mgr->l2cap_conn = conn; 7309740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 73193c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko chan = a2mp_chan_open(conn, locked); 7329740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko if (!chan) { 7339740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko kfree(mgr); 7349740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko return NULL; 7359740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko } 7369740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7379740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko mgr->a2mp_chan = chan; 7389740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko chan->data = mgr; 7399740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7409740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko conn->hcon->amp_mgr = mgr; 7419740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 7429740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko kref_init(&mgr->kref); 7439740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko 74452c0d6e56b634b195e377192182391d526cdd5e4Andrei Emeltchenko /* Remote AMP ctrl list initialization */ 74552c0d6e56b634b195e377192182391d526cdd5e4Andrei Emeltchenko INIT_LIST_HEAD(&mgr->amp_ctrls); 74652c0d6e56b634b195e377192182391d526cdd5e4Andrei Emeltchenko mutex_init(&mgr->amp_ctrls_lock); 74752c0d6e56b634b195e377192182391d526cdd5e4Andrei Emeltchenko 748f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_lock(&_mgr_list_lock); 749f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko list_add(&mgr->list, &_mgr_list); 750f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_unlock(&_mgr_list_lock); 751f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 7529740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko return mgr; 7539740e49d17e55f3832661fd99a8e0a17e921a82eAndrei Emeltchenko} 75497e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko 75597e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenkostruct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, 75697e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko struct sk_buff *skb) 75797e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko{ 75897e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko struct amp_mgr *mgr; 75997e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko 76093c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko mgr = amp_mgr_create(conn, false); 76197e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko if (!mgr) { 76297e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko BT_ERR("Could not create AMP manager"); 76397e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko return NULL; 76497e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko } 76597e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko 76697e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko BT_DBG("mgr: %p chan %p", mgr, mgr->a2mp_chan); 76797e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko 76897e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko return mgr->a2mp_chan; 76997e8e89d2d8185b7644c9941636d3682eedc517bAndrei Emeltchenko} 770f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 771f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenkostruct amp_mgr *amp_mgr_lookup_by_state(u8 state) 772f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko{ 773f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko struct amp_mgr *mgr; 774f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 775f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_lock(&_mgr_list_lock); 776f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko list_for_each_entry(mgr, &_mgr_list, list) { 777f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko if (mgr->state == state) { 778f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko amp_mgr_get(mgr); 779f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_unlock(&_mgr_list_lock); 780f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko return mgr; 781f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko } 782f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko } 783f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko mutex_unlock(&_mgr_list_lock); 784f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko 785f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko return NULL; 786f97268fccdd4e76462195216fcab621b8d4a6cd1Andrei Emeltchenko} 7878e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 7888e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenkovoid a2mp_send_getinfo_rsp(struct hci_dev *hdev) 7898e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko{ 7908e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko struct amp_mgr *mgr; 7918e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko struct a2mp_info_rsp rsp; 7928e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 7938e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_INFO); 7948e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko if (!mgr) 7958e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko return; 7968e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 7978e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko BT_DBG("%s mgr %p", hdev->name, mgr); 7988e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 7998e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.id = hdev->id; 8008e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.status = A2MP_STATUS_INVALID_CTRL_ID; 8018e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 8028e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko if (hdev->amp_type != HCI_BREDR) { 8038e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.status = 0; 8048e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.total_bw = cpu_to_le32(hdev->amp_total_bw); 8058e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.max_bw = cpu_to_le32(hdev->amp_max_bw); 8068e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.min_latency = cpu_to_le32(hdev->amp_min_latency); 8078e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap); 8088e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size); 8098e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko } 8108e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko 8118e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko a2mp_send(mgr, A2MP_GETINFO_RSP, mgr->ident, sizeof(rsp), &rsp); 8128e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko amp_mgr_put(mgr); 8138e2a0d92c56ec6955526a8b60838c9b00f70540dAndrei Emeltchenko} 814903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 815903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenkovoid a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status) 816903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko{ 817903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko struct amp_mgr *mgr; 818903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko struct amp_assoc *loc_assoc = &hdev->loc_assoc; 819903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko struct a2mp_amp_assoc_rsp *rsp; 820903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko size_t len; 821903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 822903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC); 823903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko if (!mgr) 824903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko return; 825903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 826903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko BT_DBG("%s mgr %p", hdev->name, mgr); 827903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 828903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko len = sizeof(struct a2mp_amp_assoc_rsp) + loc_assoc->len; 829903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp = kzalloc(len, GFP_KERNEL); 830903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko if (!rsp) { 831903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko amp_mgr_put(mgr); 832903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko return; 833903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko } 834903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 835903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp->id = hdev->id; 836903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 837903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko if (status) { 838903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp->status = A2MP_STATUS_INVALID_CTRL_ID; 839903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko } else { 840903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko rsp->status = A2MP_STATUS_SUCCESS; 841903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko memcpy(rsp->amp_assoc, loc_assoc->data, loc_assoc->len); 842903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko } 843903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko 844903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, mgr->ident, len, rsp); 845903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko amp_mgr_put(mgr); 846903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko kfree(rsp); 847903e45411099ae8292f5ce637ad0c72f6fef61dbAndrei Emeltchenko} 84893c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko 84993c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenkovoid a2mp_discover_amp(struct l2cap_chan *chan) 85093c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko{ 85193c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko struct l2cap_conn *conn = chan->conn; 85293c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko struct amp_mgr *mgr = conn->hcon->amp_mgr; 85393c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko struct a2mp_discov_req req; 85493c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko 85593c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko BT_DBG("chan %p conn %p mgr %p", chan, conn, mgr); 85693c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko 85793c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko if (!mgr) { 85893c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko mgr = amp_mgr_create(conn, true); 85993c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko if (!mgr) 86093c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko return; 86193c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko } 86293c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko 86393c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko mgr->bredr_chan = chan; 86493c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko 86593c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko req.mtu = cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU); 86693c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko req.ext_feat = 0; 86793c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko a2mp_send(mgr, A2MP_DISCOVER_REQ, 1, sizeof(req), &req); 86893c3e8f5c9a0e4dc6b6c93108dcf3ec54ab1191aAndrei Emeltchenko} 869