Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)    Copyright (c) 2011,2012 Intel Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <net/bluetooth/bluetooth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <net/bluetooth/hci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <net/bluetooth/hci_core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <crypto/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "hci_request.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "a2mp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include "amp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) /* Remote AMP Controllers interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) void amp_ctrl_get(struct amp_ctrl *ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	BT_DBG("ctrl %p orig refcnt %d", ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	       kref_read(&ctrl->kref));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	kref_get(&ctrl->kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static void amp_ctrl_destroy(struct kref *kref)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	struct amp_ctrl *ctrl = container_of(kref, struct amp_ctrl, kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	BT_DBG("ctrl %p", ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	kfree(ctrl->assoc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	kfree(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) int amp_ctrl_put(struct amp_ctrl *ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	BT_DBG("ctrl %p orig refcnt %d", ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	       kref_read(&ctrl->kref));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return kref_put(&ctrl->kref, &amp_ctrl_destroy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct amp_ctrl *ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	if (!ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	kref_init(&ctrl->kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	ctrl->id = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	mutex_lock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	list_add(&ctrl->list, &mgr->amp_ctrls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	mutex_unlock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	BT_DBG("mgr %p ctrl %p", mgr, ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	return ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) void amp_ctrl_list_flush(struct amp_mgr *mgr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	struct amp_ctrl *ctrl, *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	BT_DBG("mgr %p", mgr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	mutex_lock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	list_for_each_entry_safe(ctrl, n, &mgr->amp_ctrls, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		list_del(&ctrl->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		amp_ctrl_put(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	mutex_unlock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	struct amp_ctrl *ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	BT_DBG("mgr %p id %d", mgr, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	mutex_lock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	list_for_each_entry(ctrl, &mgr->amp_ctrls, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		if (ctrl->id == id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 			amp_ctrl_get(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			mutex_unlock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 			return ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	mutex_unlock(&mgr->amp_ctrls_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) /* Physical Link interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) static u8 __next_handle(struct amp_mgr *mgr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (++mgr->handle == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		mgr->handle = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	return mgr->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 			     u8 remote_id, bool out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct hci_conn *hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	u8 role = out ? HCI_ROLE_MASTER : HCI_ROLE_SLAVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	hcon = hci_conn_add(hdev, AMP_LINK, dst, role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	if (!hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	BT_DBG("hcon %p dst %pMR", hcon, dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	hcon->state = BT_CONNECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	hcon->attempt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	hcon->handle = __next_handle(mgr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	hcon->remote_id = remote_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	hcon->amp_mgr = amp_mgr_get(mgr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	return hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) /* AMP crypto key generation interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static int hmac_sha256(u8 *key, u8 ksize, char *plaintext, u8 psize, u8 *output)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	struct crypto_shash *tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct shash_desc *shash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	if (!ksize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (IS_ERR(tfm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		BT_DBG("crypto_alloc_ahash failed: err %ld", PTR_ERR(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return PTR_ERR(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	ret = crypto_shash_setkey(tfm, key, ksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		BT_DBG("crypto_ahash_setkey failed: err %d", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	shash = kzalloc(sizeof(*shash) + crypto_shash_descsize(tfm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 			GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	if (!shash) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	shash->tfm = tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	ret = crypto_shash_digest(shash, plaintext, psize, output);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	kfree(shash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	crypto_free_shash(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int phylink_gen_key(struct hci_conn *conn, u8 *data, u8 *len, u8 *type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	struct hci_dev *hdev = conn->hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct link_key *key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	u8 keybuf[HCI_AMP_LINK_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	u8 gamp_key[HCI_AMP_LINK_KEY_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if (!hci_conn_check_link_mode(conn))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	BT_DBG("conn %p key_type %d", conn, conn->key_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	/* Legacy key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (conn->key_type < 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		bt_dev_err(hdev, "legacy key type %d", conn->key_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	*type = conn->key_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	*len = HCI_AMP_LINK_KEY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	key = hci_find_link_key(hdev, &conn->dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	if (!key) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		BT_DBG("No Link key for conn %p dst %pMR", conn, &conn->dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	/* BR/EDR Link Key concatenated together with itself */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	memcpy(&keybuf[0], key->val, HCI_LINK_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	memcpy(&keybuf[HCI_LINK_KEY_SIZE], key->val, HCI_LINK_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	/* Derive Generic AMP Link Key (gamp) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	err = hmac_sha256(keybuf, HCI_AMP_LINK_KEY_SIZE, "gamp", 4, gamp_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		bt_dev_err(hdev, "could not derive Generic AMP Key: err %d", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (conn->key_type == HCI_LK_DEBUG_COMBINATION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		BT_DBG("Use Generic AMP Key (gamp)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		memcpy(data, gamp_key, HCI_AMP_LINK_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	/* Derive Dedicated AMP Link Key: "802b" is 802.11 PAL keyID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	return hmac_sha256(gamp_key, HCI_AMP_LINK_KEY_SIZE, "802b", 4, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static void read_local_amp_assoc_complete(struct hci_dev *hdev, u8 status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 					  u16 opcode, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	struct hci_rp_read_local_amp_assoc *rp = (void *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	struct amp_assoc *assoc = &hdev->loc_assoc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	size_t rem_len, frag_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	if (rp->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		goto send_rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	frag_len = skb->len - sizeof(*rp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	rem_len = __le16_to_cpu(rp->rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	if (rem_len > frag_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		assoc->offset += frag_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		/* Read other fragments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		amp_read_loc_assoc_frag(hdev, rp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	assoc->len = assoc->offset + rem_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	assoc->offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) send_rsp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	/* Send A2MP Rsp when all fragments are received */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	a2mp_send_getampassoc_rsp(hdev, rp->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	a2mp_send_create_phy_link_req(hdev, rp->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	struct hci_cp_read_local_amp_assoc cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	struct amp_assoc *loc_assoc = &hdev->loc_assoc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	BT_DBG("%s handle %d", hdev->name, phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	cp.phy_handle = phy_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	cp.len_so_far = cpu_to_le16(loc_assoc->offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	hci_req_add(&req, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	err = hci_req_run_skb(&req, read_local_amp_assoc_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		a2mp_send_getampassoc_rsp(hdev, A2MP_STATUS_INVALID_CTRL_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	struct hci_cp_read_local_amp_assoc cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	memset(&hdev->loc_assoc, 0, sizeof(struct amp_assoc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	memset(&cp, 0, sizeof(cp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	set_bit(READ_LOC_AMP_ASSOC, &mgr->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	hci_req_add(&req, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	err = hci_req_run_skb(&req, read_local_amp_assoc_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		a2mp_send_getampassoc_rsp(hdev, A2MP_STATUS_INVALID_CTRL_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 				   struct hci_conn *hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	struct hci_cp_read_local_amp_assoc cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	struct amp_mgr *mgr = hcon->amp_mgr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	if (!mgr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	cp.phy_handle = hcon->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	cp.len_so_far = cpu_to_le16(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	set_bit(READ_LOC_AMP_ASSOC_FINAL, &mgr->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	/* Read Local AMP Assoc final link information data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	hci_req_add(&req, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	err = hci_req_run_skb(&req, read_local_amp_assoc_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		a2mp_send_getampassoc_rsp(hdev, A2MP_STATUS_INVALID_CTRL_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) static void write_remote_amp_assoc_complete(struct hci_dev *hdev, u8 status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 					    u16 opcode, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	struct hci_rp_write_remote_amp_assoc *rp = (void *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	       hdev->name, rp->status, rp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	if (rp->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	amp_write_rem_assoc_continue(hdev, rp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) /* Write AMP Assoc data fragments, returns true with last fragment written*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static bool amp_write_rem_assoc_frag(struct hci_dev *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 				     struct hci_conn *hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	struct hci_cp_write_remote_amp_assoc *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	struct amp_mgr *mgr = hcon->amp_mgr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	struct amp_ctrl *ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	u16 frag_len, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	ctrl = amp_ctrl_lookup(mgr, hcon->remote_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	if (!ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	if (!ctrl->assoc_rem_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		BT_DBG("all fragments are written");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		ctrl->assoc_rem_len = ctrl->assoc_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		ctrl->assoc_len_so_far = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 		amp_ctrl_put(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	frag_len = min_t(u16, 248, ctrl->assoc_rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	len = frag_len + sizeof(*cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	cp = kzalloc(len, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	if (!cp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		amp_ctrl_put(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	BT_DBG("hcon %p ctrl %p frag_len %u assoc_len %u rem_len %u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	       hcon, ctrl, frag_len, ctrl->assoc_len, ctrl->assoc_rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	cp->phy_handle = hcon->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 	cp->len_so_far = cpu_to_le16(ctrl->assoc_len_so_far);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	cp->rem_len = cpu_to_le16(ctrl->assoc_rem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	memcpy(cp->frag, ctrl->assoc, frag_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 	ctrl->assoc_len_so_far += frag_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	ctrl->assoc_rem_len -= frag_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	amp_ctrl_put(ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	hci_req_add(&req, HCI_OP_WRITE_REMOTE_AMP_ASSOC, len, cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	hci_req_run_skb(&req, write_remote_amp_assoc_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	kfree(cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	struct hci_conn *hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	BT_DBG("%s phy handle 0x%2.2x", hdev->name, handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	hcon = hci_conn_hash_lookup_handle(hdev, handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	if (!hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	/* Send A2MP create phylink rsp when all fragments are written */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	if (amp_write_rem_assoc_frag(hdev, hcon))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		a2mp_send_create_phy_link_rsp(hdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	struct hci_conn *hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	BT_DBG("%s phy handle 0x%2.2x", hdev->name, handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	hcon = hci_conn_hash_lookup_handle(hdev, handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	if (!hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	BT_DBG("%s phy handle 0x%2.2x hcon %p", hdev->name, handle, hcon);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	amp_write_rem_assoc_frag(hdev, hcon);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) static void create_phylink_complete(struct hci_dev *hdev, u8 status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 				    u16 opcode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	struct hci_cp_create_phy_link *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	if (!cp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	hci_dev_lock(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	if (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 		struct hci_conn *hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 		hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 		if (hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 			hci_conn_del(hcon);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 		amp_write_remote_assoc(hdev, cp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 	hci_dev_unlock(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 			struct hci_conn *hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	struct hci_cp_create_phy_link cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 	cp.phy_handle = hcon->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	BT_DBG("%s hcon %p phy handle 0x%2.2x", hdev->name, hcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	       hcon->handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 	if (phylink_gen_key(mgr->l2cap_conn->hcon, cp.key, &cp.key_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 			    &cp.key_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 		BT_DBG("Cannot create link key");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	hci_req_add(&req, HCI_OP_CREATE_PHY_LINK, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 	hci_req_run(&req, create_phylink_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) static void accept_phylink_complete(struct hci_dev *hdev, u8 status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 				    u16 opcode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	struct hci_cp_accept_phy_link *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 	if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 	cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	if (!cp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 	amp_write_remote_assoc(hdev, cp->phy_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 			struct hci_conn *hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 	struct hci_cp_accept_phy_link cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 	struct hci_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 	cp.phy_handle = hcon->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 	BT_DBG("%s hcon %p phy handle 0x%2.2x", hdev->name, hcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 	       hcon->handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 	if (phylink_gen_key(mgr->l2cap_conn->hcon, cp.key, &cp.key_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 			    &cp.key_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 		BT_DBG("Cannot create link key");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 	hci_req_init(&req, hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 	hci_req_add(&req, HCI_OP_ACCEPT_PHY_LINK, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 	hci_req_run(&req, accept_phylink_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 	struct hci_dev *bredr_hdev = hci_dev_hold(bredr_hcon->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 	struct amp_mgr *mgr = hs_hcon->amp_mgr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 	struct l2cap_chan *bredr_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 	BT_DBG("bredr_hcon %p hs_hcon %p mgr %p", bredr_hcon, hs_hcon, mgr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 	if (!bredr_hdev || !mgr || !mgr->bredr_chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 	bredr_chan = mgr->bredr_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 	l2cap_chan_lock(bredr_chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	set_bit(FLAG_EFS_ENABLE, &bredr_chan->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 	bredr_chan->remote_amp_id = hs_hcon->remote_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 	bredr_chan->local_amp_id = hs_hcon->hdev->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 	bredr_chan->hs_hcon = hs_hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 	bredr_chan->conn->mtu = hs_hcon->hdev->block_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 	__l2cap_physical_cfm(bredr_chan, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 	l2cap_chan_unlock(bredr_chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	hci_dev_put(bredr_hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) void amp_create_logical_link(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 	struct hci_conn *hs_hcon = chan->hs_hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 	struct hci_cp_create_accept_logical_link cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 	struct hci_dev *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 	BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) 	       &chan->conn->hcon->dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 	if (!hs_hcon)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 	hdev = hci_dev_hold(chan->hs_hcon->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 	if (!hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 	cp.phy_handle = hs_hcon->handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 	cp.tx_flow_spec.id = chan->local_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 	cp.tx_flow_spec.stype = chan->local_stype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 	cp.tx_flow_spec.msdu = cpu_to_le16(chan->local_msdu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) 	cp.tx_flow_spec.sdu_itime = cpu_to_le32(chan->local_sdu_itime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 	cp.tx_flow_spec.acc_lat = cpu_to_le32(chan->local_acc_lat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 	cp.tx_flow_spec.flush_to = cpu_to_le32(chan->local_flush_to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 	cp.rx_flow_spec.id = chan->remote_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 	cp.rx_flow_spec.stype = chan->remote_stype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) 	cp.rx_flow_spec.msdu = cpu_to_le16(chan->remote_msdu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) 	cp.rx_flow_spec.sdu_itime = cpu_to_le32(chan->remote_sdu_itime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) 	cp.rx_flow_spec.acc_lat = cpu_to_le32(chan->remote_acc_lat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) 	cp.rx_flow_spec.flush_to = cpu_to_le32(chan->remote_flush_to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) 	if (hs_hcon->out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) 		hci_send_cmd(hdev, HCI_OP_CREATE_LOGICAL_LINK, sizeof(cp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 			     &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 		hci_send_cmd(hdev, HCI_OP_ACCEPT_LOGICAL_LINK, sizeof(cp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 			     &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 	hci_dev_put(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) void amp_disconnect_logical_link(struct hci_chan *hchan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 	struct hci_conn *hcon = hchan->conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) 	struct hci_cp_disconn_logical_link cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) 	if (hcon->state != BT_CONNECTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) 		BT_DBG("hchan %p not connected", hchan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) 	cp.log_handle = cpu_to_le16(hchan->handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) 	hci_send_cmd(hcon->hdev, HCI_OP_DISCONN_LOGICAL_LINK, sizeof(cp), &cp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) 	BT_DBG("hchan %p", hchan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) 	hci_chan_del(hchan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) }