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-rw-r--r--drivers/staging/csr/mlme.c433
1 files changed, 0 insertions, 433 deletions
diff --git a/drivers/staging/csr/mlme.c b/drivers/staging/csr/mlme.c
deleted file mode 100644
index 861d6b7687c7..000000000000
--- a/drivers/staging/csr/mlme.c
+++ /dev/null
@@ -1,433 +0,0 @@
-/*
- * ---------------------------------------------------------------------------
- * FILE: mlme.c
- *
- * PURPOSE:
- * This file provides functions to send MLME requests to the UniFi.
- *
- * Copyright (C) 2007-2008 by Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- *
- * ---------------------------------------------------------------------------
- */
-#include "csr_wifi_hip_unifi.h"
-#include "unifi_priv.h"
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_mlme_wait_for_reply
- *
- * Wait for a reply after sending a signal.
- *
- * Arguments:
- * priv Pointer to device private context struct
- * ul_client Pointer to linux client
- * sig_reply_id ID of the expected reply (defined in sigs.h).
- * timeout timeout in ms
- *
- * Returns:
- * 0 on success, -ve POSIX code on error.
- *
- * Notes:
- * This function waits for a specific (sig_reply_id) signal from UniFi.
- * It also match the sequence number of the received (cfm) signal, with
- * the latest sequence number of the signal (req) we have sent.
- * These two number match be equal.
- * Should only be used for waiting xxx.cfm signals and only after
- * we have sent the matching xxx.req signal to UniFi.
- * If no response is received within the expected time (timeout), we assume
- * that the UniFi is busy and return an error.
- * If the wait is aborted by a kernel signal arriving, we stop waiting.
- * If a response from UniFi is not what we expected, we discard it and
- * wait again. This could be a response from an aborted request. If we
- * see several bad responses we assume we have lost synchronisation with
- * UniFi.
- * ---------------------------------------------------------------------------
- */
-static int
-unifi_mlme_wait_for_reply(unifi_priv_t *priv, ul_client_t *pcli, int sig_reply_id, int timeout)
-{
- int retries = 0;
- long r;
- long t = timeout;
- unsigned int sent_seq_no;
-
- /* Convert t in ms to jiffies */
- t = msecs_to_jiffies(t);
-
- do {
- /* Wait for the confirm or timeout. */
- r = wait_event_interruptible_timeout(pcli->udi_wq,
- (pcli->wake_up_wq_id) || (priv->io_aborted == 1),
- t);
- /* Check for general i/o error */
- if (priv->io_aborted) {
- unifi_error(priv, "MLME operation aborted\n");
- return -EIO;
- }
-
- /*
- * If r=0 the request has timed-out.
- * If r>0 the request has completed successfully.
- * If r=-ERESTARTSYS an event (kill signal) has interrupted the wait_event.
- */
- if ((r == 0) && (pcli->wake_up_wq_id == 0)) {
- unifi_error(priv, "mlme_wait: timed-out waiting for 0x%.4X, after %lu msec.\n",
- sig_reply_id, jiffies_to_msecs(t));
- pcli->wake_up_wq_id = 0;
- return -ETIMEDOUT;
- } else if (r == -ERESTARTSYS) {
- unifi_error(priv, "mlme_wait: waiting for 0x%.4X was aborted.\n", sig_reply_id);
- pcli->wake_up_wq_id = 0;
- return -EINTR;
- } else {
- /* Get the sequence number of the signal that we previously set. */
- if (pcli->seq_no != 0) {
- sent_seq_no = pcli->seq_no - 1;
- } else {
- sent_seq_no = 0x0F;
- }
-
- unifi_trace(priv, UDBG5, "Received 0x%.4X, seq: (r:%d, s:%d)\n",
- pcli->wake_up_wq_id,
- pcli->wake_seq_no, sent_seq_no);
-
- /* The two sequence ids must match. */
- if (pcli->wake_seq_no == sent_seq_no) {
- /* and the signal ids must match. */
- if (sig_reply_id == pcli->wake_up_wq_id) {
- /* Found the expected signal */
- break;
- } else {
- /* This should never happen ... */
- unifi_error(priv, "mlme_wait: mismatching signal id (0x%.4X - exp 0x%.4X) (seq %d)\n",
- pcli->wake_up_wq_id,
- sig_reply_id,
- pcli->wake_seq_no);
- pcli->wake_up_wq_id = 0;
- return -EIO;
- }
- }
- /* Wait for the next signal. */
- pcli->wake_up_wq_id = 0;
-
- retries ++;
- if (retries >= 3) {
- unifi_error(priv, "mlme_wait: confirm wait retries exhausted (0x%.4X - exp 0x%.4X)\n",
- pcli->wake_up_wq_id,
- sig_reply_id);
- pcli->wake_up_wq_id = 0;
- return -EIO;
- }
- }
- } while (1);
-
- pcli->wake_up_wq_id = 0;
-
- return 0;
-} /* unifi_mlme_wait_for_reply() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_mlme_blocking_request
- *
- * Send a MLME request signal to UniFi.
- *
- * Arguments:
- * priv Pointer to device private context struct
- * pcli Pointer to context of calling process
- * sig Pointer to the signal to send
- * data_ptrs Pointer to the bulk data of the signal
- * timeout The request's timeout.
- *
- * Returns:
- * 0 on success, 802.11 result code on error.
- * ---------------------------------------------------------------------------
- */
-int
-unifi_mlme_blocking_request(unifi_priv_t *priv, ul_client_t *pcli,
- CSR_SIGNAL *sig, bulk_data_param_t *data_ptrs,
- int timeout)
-{
- int r;
-
- if (sig->SignalPrimitiveHeader.SignalId == 0) {
- unifi_error(priv, "unifi_mlme_blocking_request: Invalid Signal Id (0x%x)\n",
- sig->SignalPrimitiveHeader.SignalId);
- return -EINVAL;
- }
-
- down(&priv->mlme_blocking_mutex);
-
- sig->SignalPrimitiveHeader.ReceiverProcessId = 0;
- sig->SignalPrimitiveHeader.SenderProcessId = pcli->sender_id | pcli->seq_no;
-
- unifi_trace(priv, UDBG2, "Send client=%d, S:0x%04X, sig 0x%.4X\n",
- pcli->client_id,
- sig->SignalPrimitiveHeader.SenderProcessId,
- sig->SignalPrimitiveHeader.SignalId);
- /* Send the signal to UniFi */
- r = ul_send_signal_unpacked(priv, sig, data_ptrs);
- if (r) {
- up(&priv->mlme_blocking_mutex);
- unifi_error(priv, "Error queueing MLME REQUEST signal\n");
- return r;
- }
-
- unifi_trace(priv, UDBG5, "Send 0x%.4X, seq = %d\n",
- sig->SignalPrimitiveHeader.SignalId, pcli->seq_no);
-
- /*
- * Advance the sequence number of the last sent signal, only
- * if the signal has been successfully set.
- */
- pcli->seq_no++;
- if (pcli->seq_no > 0x0F) {
- pcli->seq_no = 0;
- }
-
- r = unifi_mlme_wait_for_reply(priv, pcli, (sig->SignalPrimitiveHeader.SignalId + 1), timeout);
- up(&priv->mlme_blocking_mutex);
-
- if (r) {
- unifi_error(priv, "Error waiting for MLME CONFIRM signal\n");
- return r;
- }
-
- return 0;
-} /* unifi_mlme_blocking_request() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_mlme_copy_reply_and_wakeup_client
- *
- * Copy the reply signal from UniFi to the client's structure
- * and wake up the waiting client.
- *
- * Arguments:
- * None.
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-void
-unifi_mlme_copy_reply_and_wakeup_client(ul_client_t *pcli,
- CSR_SIGNAL *signal, int signal_len,
- const bulk_data_param_t *bulkdata)
-{
- int i;
-
- /* Copy the signal to the reply */
- memcpy(pcli->reply_signal, signal, signal_len);
-
- /* Get the sequence number of the signal that woke us up. */
- pcli->wake_seq_no = pcli->reply_signal->SignalPrimitiveHeader.ReceiverProcessId & 0x0F;
-
- /* Append any bulk data */
- for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; i++) {
- if (bulkdata->d[i].data_length > 0) {
- if (bulkdata->d[i].os_data_ptr) {
- memcpy(pcli->reply_bulkdata[i]->ptr, bulkdata->d[i].os_data_ptr, bulkdata->d[i].data_length);
- pcli->reply_bulkdata[i]->length = bulkdata->d[i].data_length;
- } else {
- pcli->reply_bulkdata[i]->length = 0;
- }
- }
- }
-
- /* Wake the requesting MLME function. */
- pcli->wake_up_wq_id = pcli->reply_signal->SignalPrimitiveHeader.SignalId;
- wake_up_interruptible(&pcli->udi_wq);
-
-} /* unifi_mlme_copy_reply_and_wakeup_client() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * uf_abort_mlme
- *
- * Abort any MLME operation in progress.
- * This is used in the error recovery mechanism.
- *
- * Arguments:
- * priv Pointer to driver context.
- *
- * Returns:
- * 0 on success.
- * ---------------------------------------------------------------------------
- */
-int
-uf_abort_mlme(unifi_priv_t *priv)
-{
- ul_client_t *ul_cli;
-
- /* Ensure no MLME functions are waiting on a the mlme_event semaphore. */
- priv->io_aborted = 1;
-
- ul_cli = priv->netdev_client;
- if (ul_cli) {
- wake_up_interruptible(&ul_cli->udi_wq);
- }
-
- ul_cli = priv->wext_client;
- if (ul_cli) {
- wake_up_interruptible(&ul_cli->udi_wq);
- }
-
- return 0;
-} /* uf_abort_mlme() */
-
-
-
-/*
- * ---------------------------------------------------------------------------
- *
- * Human-readable decoding of Reason and Result codes.
- *
- * ---------------------------------------------------------------------------
- */
-
-struct mlme_code {
- const char *name;
- int id;
-};
-
-static const struct mlme_code Result_codes[] = {
- { "Success", 0x0000 },
- { "Unspecified Failure", 0x0001 },
- /* (Reserved) 0x0002 - 0x0009 */
- { "Refused Capabilities Mismatch", 0x000A },
- /* (Reserved) 0x000B */
- { "Refused External Reason", 0x000C },
- /* (Reserved) 0x000D - 0x0010 */
- { "Refused AP Out Of Memory", 0x0011 },
- { "Refused Basic Rates Mismatch", 0x0012 },
- /* (Reserved) 0x0013 - 0x001F */
- { "Failure", 0x0020 },
- /* (Reserved) 0x0021 - 0x0024 */
- { "Refused Reason Unspecified", 0x0025 },
- { "Invalid Parameters", 0x0026 },
- { "Rejected With Suggested Changes", 0x0027 },
- /* (Reserved) 0x0028 - 0x002E */
- { "Rejected For Delay Period", 0x002F },
- { "Not Allowed", 0x0030 },
- { "Not Present", 0x0031 },
- { "Not QSTA", 0x0032 },
- /* (Reserved) 0x0033 - 0x7FFF */
- { "Timeout", 0x8000 },
- { "Too Many Simultaneous Requests", 0x8001 },
- { "BSS Already Started Or Joined", 0x8002 },
- { "Not Supported", 0x8003 },
- { "Transmission Failure", 0x8004 },
- { "Refused Not Authenticated", 0x8005 },
- { "Reset Required Before Start", 0x8006 },
- { "LM Info Unavailable", 0x8007 },
- { NULL, -1 }
-};
-
-static const struct mlme_code Reason_codes[] = {
- /* (Reserved) 0x0000 */
- { "Unspecified Reason", 0x0001 },
- { "Authentication Not Valid", 0x0002 },
- { "Deauthenticated Leave BSS", 0x0003 },
- { "Disassociated Inactivity", 0x0004 },
- { "AP Overload", 0x0005 },
- { "Class2 Frame Error", 0x0006 },
- { "Class3 Frame Error", 0x0007 },
- { "Disassociated Leave BSS", 0x0008 },
- { "Association Not Authenticated", 0x0009 },
- { "Disassociated Power Capability", 0x000A },
- { "Disassociated Supported Channels", 0x000B },
- /* (Reserved) 0x000C */
- { "Invalid Information Element", 0x000D },
- { "Michael MIC Failure", 0x000E },
- { "Fourway Handshake Timeout", 0x000F },
- { "Group Key Update Timeout", 0x0010 },
- { "Handshake Element Different", 0x0011 },
- { "Invalid Group Cipher", 0x0012 },
- { "Invalid Pairwise Cipher", 0x0013 },
- { "Invalid AKMP", 0x0014 },
- { "Unsupported RSN IE Version", 0x0015 },
- { "Invalid RSN IE Capabilities", 0x0016 },
- { "Dot1X Auth Failed", 0x0017 },
- { "Cipher Rejected By Policy", 0x0018 },
- /* (Reserved) 0x0019 - 0x001F */
- { "QoS Unspecified Reason", 0x0020 },
- { "QoS Insufficient Bandwidth", 0x0021 },
- { "QoS Excessive Not Ack", 0x0022 },
- { "QoS TXOP Limit Exceeded", 0x0023 },
- { "QSTA Leaving", 0x0024 },
- { "End TS, End DLS, End BA", 0x0025 },
- { "Unknown TS, Unknown DLS, Unknown BA", 0x0026 },
- { "Timeout", 0x0027 },
- /* (Reserved) 0x0028 - 0x002C */
- { "STAKey Mismatch", 0x002D },
- { NULL, -1 }
-};
-
-
-static const char *
-lookup_something(const struct mlme_code *n, int id)
-{
- for (; n->name; n++) {
- if (n->id == id) {
- return n->name;
- }
- }
-
- /* not found */
- return NULL;
-} /* lookup_something() */
-
-
-const char *
-lookup_result_code(int result)
-{
- static char fallback[16];
- const char *str;
-
- str = lookup_something(Result_codes, result);
-
- if (str == NULL) {
- snprintf(fallback, 16, "%d", result);
- str = fallback;
- }
-
- return str;
-} /* lookup_result_code() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * lookup_reason
- *
- * Return a description string for a WiFi MLME ReasonCode.
- *
- * Arguments:
- * reason The ReasonCode to interpret.
- *
- * Returns:
- * Pointer to description string.
- * ---------------------------------------------------------------------------
- */
-const char *
-lookup_reason_code(int reason)
-{
- static char fallback[16];
- const char *str;
-
- str = lookup_something(Reason_codes, reason);
-
- if (str == NULL) {
- snprintf(fallback, 16, "%d", reason);
- str = fallback;
- }
-
- return str;
-} /* lookup_reason_code() */
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 20:40:47 +0000