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-rw-r--r--drivers/staging/csr/ul_int.c528
1 files changed, 0 insertions, 528 deletions
diff --git a/drivers/staging/csr/ul_int.c b/drivers/staging/csr/ul_int.c
deleted file mode 100644
index eb286e5f7467..000000000000
--- a/drivers/staging/csr/ul_int.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- * ***************************************************************************
- * FILE: ul_int.c
- *
- * PURPOSE:
- * Manage list of client applications using UniFi.
- *
- * Copyright (C) 2006-2009 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 "csr_wifi_hip_conversions.h"
-#include "unifi_priv.h"
-#include "unifiio.h"
-#include "unifi_os.h"
-
-static void free_bulkdata_buffers(unifi_priv_t *priv, bulk_data_param_t *bulkdata);
-static void reset_driver_status(unifi_priv_t *priv);
-
-/*
- * ---------------------------------------------------------------------------
- * ul_init_clients
- *
- * Initialise the clients array to empty.
- *
- * Arguments:
- * priv Pointer to device private context struct
- *
- * Returns:
- * None.
- *
- * Notes:
- * This function needs to be called before priv is stored in
- * Unifi_instances[].
- * ---------------------------------------------------------------------------
- */
-void
-ul_init_clients(unifi_priv_t *priv)
-{
- int id;
- ul_client_t *ul_clients;
-
- sema_init(&priv->udi_logging_mutex, 1);
- priv->logging_client = NULL;
-
- ul_clients = priv->ul_clients;
-
- for (id = 0; id < MAX_UDI_CLIENTS; id++) {
- memset(&ul_clients[id], 0, sizeof(ul_client_t));
-
- ul_clients[id].client_id = id;
- ul_clients[id].sender_id = UDI_SENDER_ID_BASE + (id << UDI_SENDER_ID_SHIFT);
- ul_clients[id].instance = -1;
- ul_clients[id].event_hook = NULL;
-
- INIT_LIST_HEAD(&ul_clients[id].udi_log);
- init_waitqueue_head(&ul_clients[id].udi_wq);
- sema_init(&ul_clients[id].udi_sem, 1);
-
- ul_clients[id].wake_up_wq_id = 0;
- ul_clients[id].seq_no = 0;
- ul_clients[id].wake_seq_no = 0;
- ul_clients[id].snap_filter.count = 0;
- }
-} /* ul_init_clients() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * ul_register_client
- *
- * This function registers a new ul client.
- *
- * Arguments:
- * priv Pointer to device private context struct
- * configuration Special configuration for the client.
- * udi_event_clbk Callback for receiving event from unifi.
- *
- * Returns:
- * 0 if a new clients is registered, -1 otherwise.
- * ---------------------------------------------------------------------------
- */
-ul_client_t *
-ul_register_client(unifi_priv_t *priv, unsigned int configuration,
- udi_event_t udi_event_clbk)
-{
- unsigned char id, ref;
- ul_client_t *ul_clients;
-
- ul_clients = priv->ul_clients;
-
- /* check for an unused entry */
- for (id = 0; id < MAX_UDI_CLIENTS; id++) {
- if (ul_clients[id].udi_enabled == 0) {
- ul_clients[id].instance = priv->instance;
- ul_clients[id].udi_enabled = 1;
- ul_clients[id].configuration = configuration;
-
- /* Allocate memory for the reply signal.. */
- ul_clients[id].reply_signal = kmalloc(sizeof(CSR_SIGNAL), GFP_KERNEL);
- if (ul_clients[id].reply_signal == NULL) {
- unifi_error(priv, "Failed to allocate reply signal for client.\n");
- return NULL;
- }
- /* .. and the bulk data of the reply signal. */
- for (ref = 0; ref < UNIFI_MAX_DATA_REFERENCES; ref ++) {
- ul_clients[id].reply_bulkdata[ref] = kmalloc(sizeof(bulk_data_t), GFP_KERNEL);
- /* If allocation fails, free allocated memory. */
- if (ul_clients[id].reply_bulkdata[ref] == NULL) {
- for (; ref > 0; ref --) {
- kfree(ul_clients[id].reply_bulkdata[ref - 1]);
- }
- kfree(ul_clients[id].reply_signal);
- unifi_error(priv, "Failed to allocate bulk data buffers for client.\n");
- return NULL;
- }
- }
-
- /* Set the event callback. */
- ul_clients[id].event_hook = udi_event_clbk;
-
- unifi_trace(priv, UDBG2, "UDI %d (0x%x) registered. configuration = 0x%x\n",
- id, &ul_clients[id], configuration);
- return &ul_clients[id];
- }
- }
- return NULL;
-} /* ul_register_client() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * ul_deregister_client
- *
- * This function deregisters a blocking UDI client.
- *
- * Arguments:
- * client Pointer to the client we deregister.
- *
- * Returns:
- * 0 if a new clients is deregistered.
- * ---------------------------------------------------------------------------
- */
-int
-ul_deregister_client(ul_client_t *ul_client)
-{
- struct list_head *pos, *n;
- udi_log_t *logptr;
- unifi_priv_t *priv = uf_find_instance(ul_client->instance);
- int ref;
-
- ul_client->instance = -1;
- ul_client->event_hook = NULL;
- ul_client->udi_enabled = 0;
- unifi_trace(priv, UDBG5, "UDI (0x%x) deregistered.\n", ul_client);
-
- /* Free memory allocated for the reply signal and its bulk data. */
- kfree(ul_client->reply_signal);
- for (ref = 0; ref < UNIFI_MAX_DATA_REFERENCES; ref ++) {
- kfree(ul_client->reply_bulkdata[ref]);
- }
-
- if (ul_client->snap_filter.count) {
- ul_client->snap_filter.count = 0;
- kfree(ul_client->snap_filter.protocols);
- }
-
- /* Free anything pending on the udi_log list */
- down(&ul_client->udi_sem);
- list_for_each_safe(pos, n, &ul_client->udi_log)
- {
- logptr = list_entry(pos, udi_log_t, q);
- list_del(pos);
- kfree(logptr);
- }
- up(&ul_client->udi_sem);
-
- return 0;
-} /* ul_deregister_client() */
-
-
-
-/*
- * ---------------------------------------------------------------------------
- * logging_handler
- *
- * This function is registered with the driver core.
- * It is called every time a UniFi HIP Signal is sent. It iterates over
- * the list of processes interested in receiving log events and
- * delivers the events to them.
- *
- * Arguments:
- * ospriv Pointer to driver's private data.
- * sigdata Pointer to the packed signal buffer.
- * signal_len Length of the packed signal.
- * bulkdata Pointer to the signal's bulk data.
- * dir Direction of the signal
- * 0 = from-host
- * 1 = to-host
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-void
-logging_handler(void *ospriv,
- u8 *sigdata, u32 signal_len,
- const bulk_data_param_t *bulkdata,
- enum udi_log_direction direction)
-{
- unifi_priv_t *priv = (unifi_priv_t*)ospriv;
- ul_client_t *client;
- int dir;
-
- dir = (direction == UDI_LOG_FROM_HOST) ? UDI_FROM_HOST : UDI_TO_HOST;
-
- down(&priv->udi_logging_mutex);
- client = priv->logging_client;
- if (client != NULL) {
- client->event_hook(client, sigdata, signal_len,
- bulkdata, dir);
- }
- up(&priv->udi_logging_mutex);
-
-} /* logging_handler() */
-
-
-
-/*
- * ---------------------------------------------------------------------------
- * ul_log_config_ind
- *
- * This function uses the client's register callback
- * to indicate configuration information e.g core errors.
- *
- * Arguments:
- * priv Pointer to driver's private data.
- * conf_param Pointer to the configuration data.
- * len Length of the configuration data.
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-void
-ul_log_config_ind(unifi_priv_t *priv, u8 *conf_param, int len)
-{
-#ifdef CSR_SUPPORT_SME
- if (priv->smepriv == NULL)
- {
- return;
- }
- if ((CONFIG_IND_ERROR == (*conf_param)) && (priv->wifi_on_state == wifi_on_in_progress)) {
- unifi_notice(priv, "ul_log_config_ind: wifi on in progress, suppress error\n");
- } else {
- /* wifi_off_ind (error or exit) */
- CsrWifiRouterCtrlWifiOffIndSend(priv->CSR_WIFI_SME_IFACEQUEUE, 0, (CsrWifiRouterCtrlControlIndication)(*conf_param));
- }
-#ifdef CSR_WIFI_HIP_DEBUG_OFFLINE
- unifi_debug_buf_dump();
-#endif
-#else
- bulk_data_param_t bulkdata;
-
- /*
- * If someone killed unifi_managed before the driver was unloaded
- * the g_drvpriv pointer is going to be NULL. In this case it is
- * safe to assume that there is no client to get the indication.
- */
- if (!priv) {
- unifi_notice(NULL, "uf_sme_event_ind: NULL priv\n");
- return;
- }
-
- /* Create a null bulkdata structure. */
- bulkdata.d[0].data_length = 0;
- bulkdata.d[1].data_length = 0;
-
- sme_native_log_event(priv->sme_cli, conf_param, sizeof(u8),
- &bulkdata, UDI_CONFIG_IND);
-
-#endif /* CSR_SUPPORT_SME */
-
-} /* ul_log_config_ind */
-
-
-/*
- * ---------------------------------------------------------------------------
- * free_bulkdata_buffers
- *
- * Free the bulkdata buffers e.g. after a failed unifi_send_signal().
- *
- * Arguments:
- * priv Pointer to device private struct
- * bulkdata Pointer to bulkdata parameter table
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-static void
-free_bulkdata_buffers(unifi_priv_t *priv, bulk_data_param_t *bulkdata)
-{
- int i;
-
- if (bulkdata) {
- for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; ++i) {
- if (bulkdata->d[i].data_length != 0) {
- unifi_net_data_free(priv, (bulk_data_desc_t *)(&bulkdata->d[i]));
- /* data_length is now 0 */
- }
- }
- }
-
-} /* free_bulkdata_buffers */
-
-static int
-_align_bulk_data_buffers(unifi_priv_t *priv, u8 *signal,
- bulk_data_param_t *bulkdata)
-{
- unsigned int i;
-
- if ((bulkdata == NULL) || (CSR_WIFI_ALIGN_BYTES == 0)) {
- return 0;
- }
-
- for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; i++)
- {
- struct sk_buff *skb;
- /*
- * The following complex casting is in place in order to eliminate 64-bit compilation warning
- * "cast to/from pointer from/to integer of different size"
- */
- u32 align_offset = (u32)(long)(bulkdata->d[i].os_data_ptr) & (CSR_WIFI_ALIGN_BYTES-1);
- if (align_offset)
- {
- skb = (struct sk_buff*)bulkdata->d[i].os_net_buf_ptr;
- if (skb == NULL) {
- unifi_warning(priv,
- "_align_bulk_data_buffers: Align offset found (%d) but skb is NULL!\n",
- align_offset);
- return -EINVAL;
- }
- if (bulkdata->d[i].data_length == 0) {
- unifi_warning(priv,
- "_align_bulk_data_buffers: Align offset found (%d) but length is zero\n",
- align_offset);
- return CSR_RESULT_SUCCESS;
- }
- unifi_trace(priv, UDBG5,
- "Align f-h buffer (0x%p) by %d bytes (skb->data: 0x%p)\n",
- bulkdata->d[i].os_data_ptr, align_offset, skb->data);
-
-
- /* Check if there is enough headroom... */
- if (unlikely(skb_headroom(skb) < align_offset))
- {
- struct sk_buff *tmp = skb;
-
- unifi_trace(priv, UDBG5, "Headroom not enough - realloc it\n");
- skb = skb_realloc_headroom(skb, align_offset);
- if (skb == NULL) {
- unifi_error(priv,
- "_align_bulk_data_buffers: skb_realloc_headroom failed - signal is dropped\n");
- return -EFAULT;
- }
- /* Free the old bulk data only if allocation succeeds */
- kfree_skb(tmp);
- /* Bulkdata needs to point to the new skb */
- bulkdata->d[i].os_net_buf_ptr = (const unsigned char*)skb;
- bulkdata->d[i].os_data_ptr = (const void*)skb->data;
- }
- /* ... before pushing the data to the right alignment offset */
- skb_push(skb, align_offset);
-
- }
- /* The direction bit is zero for the from-host */
- signal[SIZEOF_SIGNAL_HEADER + (i * SIZEOF_DATAREF) + 1] = align_offset;
-
- }
- return 0;
-} /* _align_bulk_data_buffers() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * ul_send_signal_unpacked
- *
- * This function sends a host formatted signal to unifi.
- *
- * Arguments:
- * priv Pointer to driver's private data.
- * sigptr Pointer to the signal.
- * bulkdata Pointer to the signal's bulk data.
- *
- * Returns:
- * O on success, error code otherwise.
- *
- * Notes:
- * The signals have to be sent in the format described in the host interface
- * specification, i.e wire formatted. Certain clients use the host formatted
- * structures. The write_pack() transforms the host formatted signal
- * into the wired formatted signal. The code is in the core, since the signals
- * are defined therefore binded to the host interface specification.
- * ---------------------------------------------------------------------------
- */
-int
-ul_send_signal_unpacked(unifi_priv_t *priv, CSR_SIGNAL *sigptr,
- bulk_data_param_t *bulkdata)
-{
- u8 sigbuf[UNIFI_PACKED_SIGBUF_SIZE];
- u16 packed_siglen;
- CsrResult csrResult;
- unsigned long lock_flags;
- int r;
-
-
- csrResult = write_pack(sigptr, sigbuf, &packed_siglen);
- if (csrResult != CSR_RESULT_SUCCESS) {
- unifi_error(priv, "Malformed HIP signal in ul_send_signal_unpacked()\n");
- return CsrHipResultToStatus(csrResult);
- }
- r = _align_bulk_data_buffers(priv, sigbuf, (bulk_data_param_t*)bulkdata);
- if (r) {
- return r;
- }
-
- spin_lock_irqsave(&priv->send_signal_lock, lock_flags);
- csrResult = unifi_send_signal(priv->card, sigbuf, packed_siglen, bulkdata);
- if (csrResult != CSR_RESULT_SUCCESS) {
- /* free_bulkdata_buffers(priv, (bulk_data_param_t *)bulkdata); */
- spin_unlock_irqrestore(&priv->send_signal_lock, lock_flags);
- return CsrHipResultToStatus(csrResult);
- }
- spin_unlock_irqrestore(&priv->send_signal_lock, lock_flags);
-
- return 0;
-} /* ul_send_signal_unpacked() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * reset_driver_status
- *
- * This function is called from ul_send_signal_raw() when it detects
- * that the SME has sent a MLME-RESET request.
- *
- * Arguments:
- * priv Pointer to device private struct
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-static void
-reset_driver_status(unifi_priv_t *priv)
-{
- priv->sta_wmm_capabilities = 0;
-#ifdef CSR_NATIVE_LINUX
-#ifdef CSR_SUPPORT_WEXT
- priv->wext_conf.flag_associated = 0;
- priv->wext_conf.block_controlled_port = CSR_WIFI_ROUTER_PORT_ACTION_8021X_PORT_OPEN;
- priv->wext_conf.bss_wmm_capabilities = 0;
- priv->wext_conf.disable_join_on_ssid_set = 0;
-#endif
-#endif
-} /* reset_driver_status() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * ul_send_signal_raw
- *
- * This function sends a wire formatted data signal to unifi.
- *
- * Arguments:
- * priv Pointer to driver's private data.
- * sigptr Pointer to the signal.
- * siglen Length of the signal.
- * bulkdata Pointer to the signal's bulk data.
- *
- * Returns:
- * O on success, error code otherwise.
- * ---------------------------------------------------------------------------
- */
-int
-ul_send_signal_raw(unifi_priv_t *priv, unsigned char *sigptr, int siglen,
- bulk_data_param_t *bulkdata)
-{
- CsrResult csrResult;
- unsigned long lock_flags;
- int r;
-
- /*
- * Make sure that the signal is updated with the bulk data
- * alignment for DMA.
- */
- r = _align_bulk_data_buffers(priv, (u8*)sigptr, bulkdata);
- if (r) {
- return r;
- }
-
- spin_lock_irqsave(&priv->send_signal_lock, lock_flags);
- csrResult = unifi_send_signal(priv->card, sigptr, siglen, bulkdata);
- if (csrResult != CSR_RESULT_SUCCESS) {
- free_bulkdata_buffers(priv, bulkdata);
- spin_unlock_irqrestore(&priv->send_signal_lock, lock_flags);
- return CsrHipResultToStatus(csrResult);
- }
- spin_unlock_irqrestore(&priv->send_signal_lock, lock_flags);
-
- /*
- * Since this is use by unicli, if we get an MLME reset request
- * we need to initialize a few status parameters
- * that the driver uses to make decisions.
- */
- if (GET_SIGNAL_ID(sigptr) == CSR_MLME_RESET_REQUEST_ID) {
- reset_driver_status(priv);
- }
-
- return 0;
-} /* ul_send_signal_raw() */
-
-
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