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Release 4.11 drivers/net/wireless/ath/ath10k/htc.c

/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "core.h"
#include "hif.h"
#include "debug.h"

/********/
/* Send */
/********/


static void ath10k_htc_control_tx_complete(struct ath10k *ar, struct sk_buff *skb) { kfree_skb(skb); }

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static struct sk_buff *ath10k_htc_build_tx_ctrl_skb(void *ar) { struct sk_buff *skb; struct ath10k_skb_cb *skb_cb; skb = dev_alloc_skb(ATH10K_HTC_CONTROL_BUFFER_SIZE); if (!skb) return NULL; skb_reserve(skb, 20); /* FIXME: why 20 bytes? */ WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb"); skb_cb = ATH10K_SKB_CB(skb); memset(skb_cb, 0, sizeof(*skb_cb)); ath10k_dbg(ar, ATH10K_DBG_HTC, "%s: skb %pK\n", __func__, skb); return skb; }

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static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc, struct sk_buff *skb) { struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb); dma_unmap_single(htc->ar->dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE); skb_pull(skb, sizeof(struct ath10k_htc_hdr)); }

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static void ath10k_htc_notify_tx_completion(struct ath10k_htc_ep *ep, struct sk_buff *skb) { struct ath10k *ar = ep->htc->ar; ath10k_dbg(ar, ATH10K_DBG_HTC, "%s: ep %d skb %pK\n", __func__, ep->eid, skb); ath10k_htc_restore_tx_skb(ep->htc, skb); if (!ep->ep_ops.ep_tx_complete) { ath10k_warn(ar, "no tx handler for eid %d\n", ep->eid); dev_kfree_skb_any(skb); return; } ep->ep_ops.ep_tx_complete(ep->htc->ar, skb); }

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static void ath10k_htc_prepare_tx_skb(struct ath10k_htc_ep *ep, struct sk_buff *skb) { struct ath10k_htc_hdr *hdr; hdr = (struct ath10k_htc_hdr *)skb->data; hdr->eid = ep->eid; hdr->len = __cpu_to_le16(skb->len - sizeof(*hdr)); hdr->flags = 0; hdr->flags |= ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE; spin_lock_bh(&ep->htc->tx_lock); hdr->seq_no = ep->seq_no++; spin_unlock_bh(&ep->htc->tx_lock); }

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int ath10k_htc_send(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid, struct sk_buff *skb) { struct ath10k *ar = htc->ar; struct ath10k_htc_ep *ep = &htc->endpoint[eid]; struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb); struct ath10k_hif_sg_item sg_item; struct device *dev = htc->ar->dev; int credits = 0; int ret; if (htc->ar->state == ATH10K_STATE_WEDGED) return -ECOMM; if (eid >= ATH10K_HTC_EP_COUNT) { ath10k_warn(ar, "Invalid endpoint id: %d\n", eid); return -ENOENT; } skb_push(skb, sizeof(struct ath10k_htc_hdr)); if (ep->tx_credit_flow_enabled) { credits = DIV_ROUND_UP(skb->len, htc->target_credit_size); spin_lock_bh(&htc->tx_lock); if (ep->tx_credits < credits) { spin_unlock_bh(&htc->tx_lock); ret = -EAGAIN; goto err_pull; } ep->tx_credits -= credits; ath10k_dbg(ar, ATH10K_DBG_HTC, "htc ep %d consumed %d credits (total %d)\n", eid, credits, ep->tx_credits); spin_unlock_bh(&htc->tx_lock); } ath10k_htc_prepare_tx_skb(ep, skb); skb_cb->eid = eid; skb_cb->paddr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); ret = dma_mapping_error(dev, skb_cb->paddr); if (ret) { ret = -EIO; goto err_credits; } sg_item.transfer_id = ep->eid; sg_item.transfer_context = skb; sg_item.vaddr = skb->data; sg_item.paddr = skb_cb->paddr; sg_item.len = skb->len; ret = ath10k_hif_tx_sg(htc->ar, ep->ul_pipe_id, &sg_item, 1); if (ret) goto err_unmap; return 0; err_unmap: dma_unmap_single(dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE); err_credits: if (ep->tx_credit_flow_enabled) { spin_lock_bh(&htc->tx_lock); ep->tx_credits += credits; ath10k_dbg(ar, ATH10K_DBG_HTC, "htc ep %d reverted %d credits back (total %d)\n", eid, credits, ep->tx_credits); spin_unlock_bh(&htc->tx_lock); if (ep->ep_ops.ep_tx_credits) ep->ep_ops.ep_tx_credits(htc->ar); } err_pull: skb_pull(skb, sizeof(struct ath10k_htc_hdr)); return ret; }

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void ath10k_htc_tx_completion_handler(struct ath10k *ar, struct sk_buff *skb) { struct ath10k_htc *htc = &ar->htc; struct ath10k_skb_cb *skb_cb; struct ath10k_htc_ep *ep; if (WARN_ON_ONCE(!skb)) return; skb_cb = ATH10K_SKB_CB(skb); ep = &htc->endpoint[skb_cb->eid]; ath10k_htc_notify_tx_completion(ep, skb); /* the skb now belongs to the completion handler */ }

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EXPORT_SYMBOL(ath10k_htc_tx_completion_handler); /***********/ /* Receive */ /***********/
static void ath10k_htc_process_credit_report(struct ath10k_htc *htc, const struct ath10k_htc_credit_report *report, int len, enum ath10k_htc_ep_id eid) { struct ath10k *ar = htc->ar; struct ath10k_htc_ep *ep; int i, n_reports; if (len % sizeof(*report)) ath10k_warn(ar, "Uneven credit report len %d", len); n_reports = len / sizeof(*report); spin_lock_bh(&htc->tx_lock); for (i = 0; i < n_reports; i++, report++) { if (report->eid >= ATH10K_HTC_EP_COUNT) break; ep = &htc->endpoint[report->eid]; ep->tx_credits += report->credits; ath10k_dbg(ar, ATH10K_DBG_HTC, "htc ep %d got %d credits (total %d)\n", report->eid, report->credits, ep->tx_credits); if (ep->ep_ops.ep_tx_credits) { spin_unlock_bh(&htc->tx_lock); ep->ep_ops.ep_tx_credits(htc->ar); spin_lock_bh(&htc->tx_lock); } } spin_unlock_bh(&htc->tx_lock); }

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static int ath10k_htc_process_trailer(struct ath10k_htc *htc, u8 *buffer, int length, enum ath10k_htc_ep_id src_eid) { struct ath10k *ar = htc->ar; int status = 0; struct ath10k_htc_record *record; u8 *orig_buffer; int orig_length; size_t len; orig_buffer = buffer; orig_length = length; while (length > 0) { record = (struct ath10k_htc_record *)buffer; if (length < sizeof(record->hdr)) { status = -EINVAL; break; } if (record->hdr.len > length) { /* no room left in buffer for record */ ath10k_warn(ar, "Invalid record length: %d\n", record->hdr.len); status = -EINVAL; break; } switch (record->hdr.id) { case ATH10K_HTC_RECORD_CREDITS: len = sizeof(struct ath10k_htc_credit_report); if (record->hdr.len < len) { ath10k_warn(ar, "Credit report too long\n"); status = -EINVAL; break; } ath10k_htc_process_credit_report(htc, record->credit_report, record->hdr.len, src_eid); break; default: ath10k_warn(ar, "Unhandled record: id:%d length:%d\n", record->hdr.id, record->hdr.len); break; } if (status) break; /* multiple records may be present in a trailer */ buffer += sizeof(record->hdr) + record->hdr.len; length -= sizeof(record->hdr) + record->hdr.len; } if (status) ath10k_dbg_dump(ar, ATH10K_DBG_HTC, "htc rx bad trailer", "", orig_buffer, orig_length); return status; }

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void ath10k_htc_rx_completion_handler(struct ath10k *ar, struct sk_buff *skb) { int status = 0; struct ath10k_htc *htc = &ar->htc; struct ath10k_htc_hdr *hdr; struct ath10k_htc_ep *ep; u16 payload_len; u32 trailer_len = 0; size_t min_len; u8 eid; bool trailer_present; hdr = (struct ath10k_htc_hdr *)skb->data; skb_pull(skb, sizeof(*hdr)); eid = hdr->eid; if (eid >= ATH10K_HTC_EP_COUNT) { ath10k_warn(ar, "HTC Rx: invalid eid %d\n", eid); ath10k_dbg_dump(ar, ATH10K_DBG_HTC, "htc bad header", "", hdr, sizeof(*hdr)); goto out; } ep = &htc->endpoint[eid]; payload_len = __le16_to_cpu(hdr->len); if (payload_len + sizeof(*hdr) > ATH10K_HTC_MAX_LEN) { ath10k_warn(ar, "HTC rx frame too long, len: %zu\n", payload_len + sizeof(*hdr)); ath10k_dbg_dump(ar, ATH10K_DBG_HTC, "htc bad rx pkt len", "", hdr, sizeof(*hdr)); goto out; } if (skb->len < payload_len) { ath10k_dbg(ar, ATH10K_DBG_HTC, "HTC Rx: insufficient length, got %d, expected %d\n", skb->len, payload_len); ath10k_dbg_dump(ar, ATH10K_DBG_HTC, "htc bad rx pkt len", "", hdr, sizeof(*hdr)); goto out; } /* get flags to check for trailer */ trailer_present = hdr->flags & ATH10K_HTC_FLAG_TRAILER_PRESENT; if (trailer_present) { u8 *trailer; trailer_len = hdr->trailer_len; min_len = sizeof(struct ath10k_ath10k_htc_record_hdr); if ((trailer_len < min_len) || (trailer_len > payload_len)) { ath10k_warn(ar, "Invalid trailer length: %d\n", trailer_len); goto out; } trailer = (u8 *)hdr; trailer += sizeof(*hdr); trailer += payload_len; trailer -= trailer_len; status = ath10k_htc_process_trailer(htc, trailer, trailer_len, hdr->eid); if (status) goto out; skb_trim(skb, skb->len - trailer_len); } if (((int)payload_len - (int)trailer_len) <= 0) /* zero length packet with trailer data, just drop these */ goto out; if (eid == ATH10K_HTC_EP_0) { struct ath10k_htc_msg *msg = (struct ath10k_htc_msg *)skb->data; switch (__le16_to_cpu(msg->hdr.message_id)) { case ATH10K_HTC_MSG_READY_ID: case ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID: /* handle HTC control message */ if (completion_done(&htc->ctl_resp)) { /* * this is a fatal error, target should not be * sending unsolicited messages on the ep 0 */ ath10k_warn(ar, "HTC rx ctrl still processing\n"); complete(&htc->ctl_resp); goto out; } htc->control_resp_len = min_t(int, skb->len, ATH10K_HTC_MAX_CTRL_MSG_LEN); memcpy(htc->control_resp_buffer, skb->data, htc->control_resp_len); complete(&htc->ctl_resp); break; case ATH10K_HTC_MSG_SEND_SUSPEND_COMPLETE: htc->htc_ops.target_send_suspend_complete(ar); break; default: ath10k_warn(ar, "ignoring unsolicited htc ep0 event\n"); break; } goto out; } ath10k_dbg(ar, ATH10K_DBG_HTC, "htc rx completion ep %d skb %pK\n", eid, skb); ep->ep_ops.ep_rx_complete(ar, skb); /* skb is now owned by the rx completion handler */ skb = NULL; out: kfree_skb(skb); }

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Total552100.00%6100.00%

EXPORT_SYMBOL(ath10k_htc_rx_completion_handler);
static void ath10k_htc_control_rx_complete(struct ath10k *ar, struct sk_buff *skb) { /* This is unexpected. FW is not supposed to send regular rx on this * endpoint. */ ath10k_warn(ar, "unexpected htc rx\n"); kfree_skb(skb); }

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/***************/ /* Init/Deinit */ /***************/
static const char *htc_service_name(enum ath10k_htc_svc_id id) { switch (id) { case ATH10K_HTC_SVC_ID_RESERVED: return "Reserved"; case ATH10K_HTC_SVC_ID_RSVD_CTRL: return "Control"; case ATH10K_HTC_SVC_ID_WMI_CONTROL: return "WMI"; case ATH10K_HTC_SVC_ID_WMI_DATA_BE: return "DATA BE"; case ATH10K_HTC_SVC_ID_WMI_DATA_BK: return "DATA BK"; case ATH10K_HTC_SVC_ID_WMI_DATA_VI: return "DATA VI"; case ATH10K_HTC_SVC_ID_WMI_DATA_VO: return "DATA VO"; case ATH10K_HTC_SVC_ID_NMI_CONTROL: return "NMI Control"; case ATH10K_HTC_SVC_ID_NMI_DATA: return "NMI Data"; case ATH10K_HTC_SVC_ID_HTT_DATA_MSG: return "HTT Data"; case ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS: return "RAW"; } return "Unknown"; }

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static void ath10k_htc_reset_endpoint_states(struct ath10k_htc *htc) { struct ath10k_htc_ep *ep; int i; for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) { ep = &htc->endpoint[i]; ep->service_id = ATH10K_HTC_SVC_ID_UNUSED; ep->max_ep_message_len = 0; ep->max_tx_queue_depth = 0; ep->eid = i; ep->htc = htc; ep->tx_credit_flow_enabled = true; } }

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static u8 ath10k_htc_get_credit_allocation(struct ath10k_htc *htc, u16 service_id) { u8 allocation = 0; /* The WMI control service is the only service with flow control. * Let it have all transmit credits. */ if (service_id == ATH10K_HTC_SVC_ID_WMI_CONTROL) allocation = htc->total_transmit_credits; return allocation; }

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int ath10k_htc_wait_target(struct ath10k_htc *htc) { struct ath10k *ar = htc->ar; int i, status = 0; unsigned long time_left; struct ath10k_htc_svc_conn_req conn_req; struct ath10k_htc_svc_conn_resp conn_resp; struct ath10k_htc_msg *msg; u16 message_id; u16 credit_count; u16 credit_size; time_left = wait_for_completion_timeout(&htc->ctl_resp, ATH10K_HTC_WAIT_TIMEOUT_HZ); if (!time_left) { /* Workaround: In some cases the PCI HIF doesn't * receive interrupt for the control response message * even if the buffer was completed. It is suspected * iomap writes unmasking PCI CE irqs aren't propagated * properly in KVM PCI-passthrough sometimes. */ ath10k_warn(ar, "failed to receive control response completion, polling..\n"); for (i = 0; i < CE_COUNT; i++) ath10k_hif_send_complete_check(htc->ar, i, 1); time_left = wait_for_completion_timeout(&htc->ctl_resp, ATH10K_HTC_WAIT_TIMEOUT_HZ); if (!time_left) status = -ETIMEDOUT; } if (status < 0) { ath10k_err(ar, "ctl_resp never came in (%d)\n", status); return status; } if (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->ready)) { ath10k_err(ar, "Invalid HTC ready msg len:%d\n", htc->control_resp_len); return -ECOMM; } msg = (struct ath10k_htc_msg *)htc->control_resp_buffer; message_id = __le16_to_cpu(msg->hdr.message_id); credit_count = __le16_to_cpu(msg->ready.credit_count); credit_size = __le16_to_cpu(msg->ready.credit_size); if (message_id != ATH10K_HTC_MSG_READY_ID) { ath10k_err(ar, "Invalid HTC ready msg: 0x%x\n", message_id); return -ECOMM; } htc->total_transmit_credits = credit_count; htc->target_credit_size = credit_size; ath10k_dbg(ar, ATH10K_DBG_HTC, "Target ready! transmit resources: %d size:%d\n", htc->total_transmit_credits, htc->target_credit_size); if ((htc->total_transmit_credits == 0) || (htc->target_credit_size == 0)) { ath10k_err(ar, "Invalid credit size received\n"); return -ECOMM; } /* setup our pseudo HTC control endpoint connection */ memset(&conn_req, 0, sizeof(conn_req)); memset(&conn_resp, 0, sizeof(conn_resp)); conn_req.ep_ops.ep_tx_complete = ath10k_htc_control_tx_complete; conn_req.ep_ops.ep_rx_complete = ath10k_htc_control_rx_complete; conn_req.max_send_queue_depth = ATH10K_NUM_CONTROL_TX_BUFFERS; conn_req.service_id = ATH10K_HTC_SVC_ID_RSVD_CTRL; /* connect fake service */ status = ath10k_htc_connect_service(htc, &conn_req, &conn_resp); if (status) { ath10k_err(ar, "could not connect to htc service (%d)\n", status); return status; } return 0; }

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int ath10k_htc_connect_service(struct ath10k_htc *htc, struct ath10k_htc_svc_conn_req *conn_req, struct ath10k_htc_svc_conn_resp *conn_resp) { struct ath10k *ar = htc->ar; struct ath10k_htc_msg *msg; struct ath10k_htc_conn_svc *req_msg; struct ath10k_htc_conn_svc_response resp_msg_dummy; struct ath10k_htc_conn_svc_response *resp_msg = &resp_msg_dummy; enum ath10k_htc_ep_id assigned_eid = ATH10K_HTC_EP_COUNT; struct ath10k_htc_ep *ep; struct sk_buff *skb; unsigned int max_msg_size = 0; int length, status; unsigned long time_left; bool disable_credit_flow_ctrl = false; u16 message_id, service_id, flags = 0; u8 tx_alloc = 0; /* special case for HTC pseudo control service */ if (conn_req->service_id == ATH10K_HTC_SVC_ID_RSVD_CTRL) { disable_credit_flow_ctrl = true; assigned_eid = ATH10K_HTC_EP_0; max_msg_size = ATH10K_HTC_MAX_CTRL_MSG_LEN; memset(&resp_msg_dummy, 0, sizeof(resp_msg_dummy)); goto setup; } tx_alloc = ath10k_htc_get_credit_allocation(htc, conn_req->service_id); if (!tx_alloc) ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot htc service %s does not allocate target credits\n", htc_service_name(conn_req->service_id)); skb = ath10k_htc_build_tx_ctrl_skb(htc->ar); if (!skb) { ath10k_err(ar, "Failed to allocate HTC packet\n"); return -ENOMEM; } length = sizeof(msg->hdr) + sizeof(msg->connect_service); skb_put(skb, length); memset(skb->data, 0, length); msg = (struct ath10k_htc_msg *)skb->data; msg->hdr.message_id = __cpu_to_le16(ATH10K_HTC_MSG_CONNECT_SERVICE_ID); flags |= SM(tx_alloc, ATH10K_HTC_CONN_FLAGS_RECV_ALLOC); /* Only enable credit flow control for WMI ctrl service */ if (conn_req->service_id != ATH10K_HTC_SVC_ID_WMI_CONTROL) { flags |= ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL; disable_credit_flow_ctrl = true; } req_msg = &msg->connect_service; req_msg->flags = __cpu_to_le16(flags); req_msg->service_id = __cpu_to_le16(conn_req->service_id); reinit_completion(&htc->ctl_resp); status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb); if (status) { kfree_skb(skb); return status; } /* wait for response */ time_left = wait_for_completion_timeout(&htc->ctl_resp, ATH10K_HTC_CONN_SVC_TIMEOUT_HZ); if (!time_left) { ath10k_err(ar, "Service connect timeout\n"); return -ETIMEDOUT; } /* we controlled the buffer creation, it's aligned */ msg = (struct ath10k_htc_msg *)htc->control_resp_buffer; resp_msg = &msg->connect_service_response; message_id = __le16_to_cpu(msg->hdr.message_id); service_id = __le16_to_cpu(resp_msg->service_id); if ((message_id != ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID) || (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->connect_service_response))) { ath10k_err(ar, "Invalid resp message ID 0x%x", message_id); return -EPROTO; } ath10k_dbg(ar, ATH10K_DBG_HTC, "HTC Service %s connect response: status: 0x%x, assigned ep: 0x%x\n", htc_service_name(service_id), resp_msg->status, resp_msg->eid); conn_resp->connect_resp_code = resp_msg->status; /* check response status */ if (resp_msg->status != ATH10K_HTC_CONN_SVC_STATUS_SUCCESS) { ath10k_err(ar, "HTC Service %s connect request failed: 0x%x)\n", htc_service_name(service_id), resp_msg->status); return -EPROTO; } assigned_eid = (enum ath10k_htc_ep_id)resp_msg->eid; max_msg_size = __le16_to_cpu(resp_msg->max_msg_size); setup: if (assigned_eid >= ATH10K_HTC_EP_COUNT) return -EPROTO; if (max_msg_size == 0) return -EPROTO; ep = &htc->endpoint[assigned_eid]; ep->eid = assigned_eid; if (ep->service_id != ATH10K_HTC_SVC_ID_UNUSED) return -EPROTO; /* return assigned endpoint to caller */ conn_resp->eid = assigned_eid; conn_resp->max_msg_len = __le16_to_cpu(resp_msg->max_msg_size); /* setup the endpoint */ ep->service_id = conn_req->service_id; ep->max_tx_queue_depth = conn_req->max_send_queue_depth; ep->max_ep_message_len = __le16_to_cpu(resp_msg->max_msg_size); ep->tx_credits = tx_alloc; /* copy all the callbacks */ ep->ep_ops = conn_req->ep_ops; status = ath10k_hif_map_service_to_pipe(htc->ar, ep->service_id, &ep->ul_pipe_id, &ep->dl_pipe_id); if (status) return status; ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot htc service '%s' ul pipe %d dl pipe %d eid %d ready\n", htc_service_name(ep->service_id), ep->ul_pipe_id, ep->dl_pipe_id, ep->eid); if (disable_credit_flow_ctrl && ep->tx_credit_flow_enabled) { ep->tx_credit_flow_enabled = false; ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot htc service '%s' eid %d TX flow control disabled\n", htc_service_name(ep->service_id), assigned_eid); } return status; }

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Wolfram Sang20.27%112.50%
Total742100.00%8100.00%


struct sk_buff *ath10k_htc_alloc_skb(struct ath10k *ar, int size) { struct sk_buff *skb; skb = dev_alloc_skb(size + sizeof(struct ath10k_htc_hdr)); if (!skb) return NULL; skb_reserve(skb, sizeof(struct ath10k_htc_hdr)); /* FW/HTC requires 4-byte aligned streams */ if (!IS_ALIGNED((unsigned long)skb->data, 4)) ath10k_warn(ar, "Unaligned HTC tx skb\n"); return skb; }

Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo7291.14%150.00%
Michal Kazior78.86%150.00%
Total79100.00%2100.00%


int ath10k_htc_start(struct ath10k_htc *htc) { struct ath10k *ar = htc->ar; struct sk_buff *skb; int status = 0; struct ath10k_htc_msg *msg; skb = ath10k_htc_build_tx_ctrl_skb(htc->ar); if (!skb) return -ENOMEM; skb_put(skb, sizeof(msg->hdr) + sizeof(msg->setup_complete_ext)); memset(skb->data, 0, skb->len); msg = (struct ath10k_htc_msg *)skb->data; msg->hdr.message_id = __cpu_to_le16(ATH10K_HTC_MSG_SETUP_COMPLETE_EX_ID); ath10k_dbg(ar, ATH10K_DBG_HTC, "HTC is using TX credit flow control\n"); status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb); if (status) { kfree_skb(skb); return status; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo13292.31%150.00%
Michal Kazior117.69%150.00%
Total143100.00%2100.00%

/* registered target arrival callback from the HIF layer */
int ath10k_htc_init(struct ath10k *ar) { struct ath10k_htc_ep *ep = NULL; struct ath10k_htc *htc = &ar->htc; spin_lock_init(&htc->tx_lock); ath10k_htc_reset_endpoint_states(htc); htc->ar = ar; /* Get HIF default pipe for HTC message exchange */ ep = &htc->endpoint[ATH10K_HTC_EP_0]; ath10k_hif_get_default_pipe(ar, &ep->ul_pipe_id, &ep->dl_pipe_id); init_completion(&htc->ctl_resp); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo7691.57%150.00%
Michal Kazior78.43%150.00%
Total83100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo284579.27%26.45%
Michal Kazior70219.56%2167.74%
Nicholas Mc Guire210.59%26.45%
Rajkumar Manoharan130.36%39.68%
Maharaja Kennadyrajan30.08%13.23%
Erik Stromdahl30.08%13.23%
Wolfram Sang20.06%13.23%
Total3589100.00%31100.00%
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