From be9ce9d8c196bf150eace10aaf43110672d6eb4c Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Tue, 13 Jan 2015 16:30:11 +0200 Subject: [PATCH] ath10k: implement beacon template command New firmware revisions may support setting beacon template. Implement wmi interface for it. Signed-off-by: Michal Kazior Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/wmi-ops.h | 23 ++++++++ drivers/net/wireless/ath/ath10k/wmi-tlv.c | 65 +++++++++++++++++++++++ drivers/net/wireless/ath/ath10k/wmi-tlv.h | 12 +++++ drivers/net/wireless/ath/ath10k/wmi.c | 3 ++ 4 files changed, 103 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h index 3a3d15e65e0a..546970259de2 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-ops.h +++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h @@ -129,6 +129,10 @@ struct wmi_ops { struct sk_buff *(*gen_delba_send)(struct ath10k *ar, u32 vdev_id, const u8 *mac, u32 tid, u32 initiator, u32 reason); + struct sk_buff *(*gen_bcn_tmpl)(struct ath10k *ar, u32 vdev_id, + u32 tim_ie_offset, struct sk_buff *bcn, + u32 prb_caps, u32 prb_erp, + void *prb_ies, size_t prb_ies_len); }; int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb, u32 cmd_id); @@ -935,4 +939,23 @@ ath10k_wmi_delba_send(struct ath10k *ar, u32 vdev_id, const u8 *mac, ar->wmi.cmd->delba_send_cmdid); } +static inline int +ath10k_wmi_bcn_tmpl(struct ath10k *ar, u32 vdev_id, u32 tim_ie_offset, + struct sk_buff *bcn, u32 prb_caps, u32 prb_erp, + void *prb_ies, size_t prb_ies_len) +{ + struct sk_buff *skb; + + if (!ar->wmi.ops->gen_bcn_tmpl) + return -EOPNOTSUPP; + + skb = ar->wmi.ops->gen_bcn_tmpl(ar, vdev_id, tim_ie_offset, bcn, + prb_caps, prb_erp, prb_ies, + prb_ies_len); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->bcn_tmpl_cmdid); +} + #endif diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 67138a69bb42..08a9b2b35d06 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -1972,6 +1972,70 @@ ath10k_wmi_tlv_op_gen_pktlog_disable(struct ath10k *ar) return skb; } +static struct sk_buff * +ath10k_wmi_tlv_op_gen_bcn_tmpl(struct ath10k *ar, u32 vdev_id, + u32 tim_ie_offset, struct sk_buff *bcn, + u32 prb_caps, u32 prb_erp, void *prb_ies, + size_t prb_ies_len) +{ + struct wmi_tlv_bcn_tmpl_cmd *cmd; + struct wmi_tlv_bcn_prb_info *info; + struct wmi_tlv *tlv; + struct sk_buff *skb; + void *ptr; + size_t len; + + if (WARN_ON(prb_ies_len > 0 && !prb_ies)) + return ERR_PTR(-EINVAL); + + len = sizeof(*tlv) + sizeof(*cmd) + + sizeof(*tlv) + sizeof(*info) + prb_ies_len + + sizeof(*tlv) + roundup(bcn->len, 4); + skb = ath10k_wmi_alloc_skb(ar, len); + if (!skb) + return ERR_PTR(-ENOMEM); + + ptr = (void *)skb->data; + tlv = ptr; + tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_BCN_TMPL_CMD); + tlv->len = __cpu_to_le16(sizeof(*cmd)); + cmd = (void *)tlv->value; + cmd->vdev_id = __cpu_to_le32(vdev_id); + cmd->tim_ie_offset = __cpu_to_le32(tim_ie_offset); + cmd->buf_len = __cpu_to_le32(bcn->len); + + ptr += sizeof(*tlv); + ptr += sizeof(*cmd); + + /* FIXME: prb_ies_len should be probably aligned to 4byte boundary but + * then it is then impossible to pass original ie len. + * This chunk is not used yet so if setting probe resp template yields + * problems with beaconing or crashes firmware look here. + */ + tlv = ptr; + tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_BCN_PRB_INFO); + tlv->len = __cpu_to_le16(sizeof(*info) + prb_ies_len); + info = (void *)tlv->value; + info->caps = __cpu_to_le32(prb_caps); + info->erp = __cpu_to_le32(prb_erp); + memcpy(info->ies, prb_ies, prb_ies_len); + + ptr += sizeof(*tlv); + ptr += sizeof(*info); + ptr += prb_ies_len; + + tlv = ptr; + tlv->tag = __cpu_to_le16(WMI_TLV_TAG_ARRAY_BYTE); + tlv->len = __cpu_to_le16(roundup(bcn->len, 4)); + memcpy(tlv->value, bcn->data, bcn->len); + + /* FIXME: Adjust TSF? */ + + ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv bcn tmpl vdev_id %i\n", + vdev_id); + return skb; +} + /****************/ /* TLV mappings */ /****************/ @@ -2261,6 +2325,7 @@ static const struct wmi_ops wmi_tlv_ops = { /* .gen_addba_send not implemented */ /* .gen_addba_set_resp not implemented */ /* .gen_delba_send not implemented */ + .gen_bcn_tmpl = ath10k_wmi_tlv_op_gen_bcn_tmpl, }; /************/ diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h index ee19353ce65c..c4773652d380 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h @@ -1387,6 +1387,18 @@ struct wmi_tlv_bcn_tx_status_ev { __le32 tx_status; } __packed; +struct wmi_tlv_bcn_prb_info { + __le32 caps; + __le32 erp; + u8 ies[0]; +} __packed; + +struct wmi_tlv_bcn_tmpl_cmd { + __le32 vdev_id; + __le32 tim_ie_offset; + __le32 buf_len; +} __packed; + void ath10k_wmi_tlv_attach(struct ath10k *ar); #endif diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 2d3c700e2cbb..d37a4859fc2a 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -5038,6 +5038,7 @@ static const struct wmi_ops wmi_ops = { .gen_addba_send = ath10k_wmi_op_gen_addba_send, .gen_addba_set_resp = ath10k_wmi_op_gen_addba_set_resp, .gen_delba_send = ath10k_wmi_op_gen_delba_send, + /* .gen_bcn_tmpl not implemented */ }; static const struct wmi_ops wmi_10_1_ops = { @@ -5096,6 +5097,7 @@ static const struct wmi_ops wmi_10_1_ops = { .gen_addba_send = ath10k_wmi_op_gen_addba_send, .gen_addba_set_resp = ath10k_wmi_op_gen_addba_set_resp, .gen_delba_send = ath10k_wmi_op_gen_delba_send, + /* .gen_bcn_tmpl not implemented */ }; static const struct wmi_ops wmi_10_2_ops = { @@ -5214,6 +5216,7 @@ static const struct wmi_ops wmi_10_2_4_ops = { .gen_addba_send = ath10k_wmi_op_gen_addba_send, .gen_addba_set_resp = ath10k_wmi_op_gen_addba_set_resp, .gen_delba_send = ath10k_wmi_op_gen_delba_send, + /* .gen_bcn_tmpl not implemented */ }; int ath10k_wmi_attach(struct ath10k *ar) -- 2.30.2