Staging: csr: update to version 5.1.0 of the driver

This brings the in-kernel driver up to the level of the
csr-linux-wifi-5.1.0-oss.tar.gz tarball.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/csr/csr_framework_ext.c

@@ -211,3 +211,38 @@ void CsrMemFree(void *pointer)
     kfree(pointer);
 }
 EXPORT_SYMBOL_GPL(CsrMemFree);
+
+/*----------------------------------------------------------------------------*
+ *  NAME
+ *      CsrMemAllocDma
+ *
+ *  DESCRIPTION
+ *      Allocate DMA capable dynamic memory of a given size.
+ *
+ *  RETURNS
+ *      Pointer to allocated memory, or NULL in case of failure.
+ *      Allocated memory is not initialised.
+ *
+ *----------------------------------------------------------------------------*/
+void *CsrMemAllocDma(CsrSize size)
+{
+    return kmalloc(size, GFP_KERNEL | GFP_DMA);
+}
+EXPORT_SYMBOL_GPL(CsrMemAllocDma);
+
+/*----------------------------------------------------------------------------*
+ *  NAME
+ *      CsrMemFreeDma
+ *
+ *  DESCRIPTION
+ *      Free DMA capable dynamic allocated memory.
+ *
+ *  RETURNS
+ *      void
+ *
+ *----------------------------------------------------------------------------*/
+void CsrMemFreeDma(void *pointer)
+{
+    kfree(pointer);
+}
+EXPORT_SYMBOL_GPL(CsrMemFreeDma);

drivers/staging/csr/csr_types.h

@@ -21,6 +21,7 @@
 #include <stddef.h>
 #include <sys/types.h>
 #include <stdarg.h>
+#include <string.h>
 #endif
 
 #ifdef __cplusplus

drivers/staging/csr/csr_util.c

@@ -221,6 +221,7 @@ void CsrUInt32ToHex(CsrUint32 number, CsrCharString *str)
 /*------------------------------------------------------------------*/
 /*  String */
 /*------------------------------------------------------------------*/
+#ifndef CSR_USE_STDC_LIB
 void *CsrMemCpy(void *dest, const void *src, CsrSize count)
 {
     return memcpy(dest, src, count);
@@ -257,7 +258,9 @@ void *CsrMemDup(const void *buf1, CsrSize count)
 
     return buf2;
 }
+#endif
 
+#ifndef CSR_USE_STDC_LIB
 CsrCharString *CsrStrCpy(CsrCharString *dest, const CsrCharString *src)
 {
     return strcpy(dest, src);
@@ -303,6 +306,7 @@ CsrCharString *CsrStrChr(const CsrCharString *string, CsrCharString c)
 {
     return strchr(string, c);
 }
+#endif
 
 CsrInt32 CsrVsnprintf(CsrCharString *string, CsrSize count, const CsrCharString *format, va_list args)
 {

drivers/staging/csr/csr_util.h

@@ -35,26 +35,53 @@ void CsrUInt16ToHex(CsrUint16 number, CsrCharString *str);
 void CsrUInt32ToHex(CsrUint32 number, CsrCharString *str);
 
 /*------------------------------------------------------------------*/
-/*  String */
+/* Standard C Library functions */
 /*------------------------------------------------------------------*/
+#ifdef CSR_USE_STDC_LIB
+#define CsrMemCpy memcpy
+#define CsrMemMove memmove
+#define CsrStrCpy strcpy
+#define CsrStrNCpy strncpy
+#define CsrStrCat strcat
+#define CsrStrNCat strncat
+#define CsrMemCmp(s1, s2, n) ((CsrInt32) memcmp((s1), (s2), (n)))
+#define CsrStrCmp(s1, s2) ((CsrInt32) strcmp((s1), (s2)))
+#define CsrStrNCmp(s1, s2, n) ((CsrInt32) strncmp((s1), (s2), (n)))
+/*#define CsrMemChr memchr*/
+#define CsrStrChr strchr
+/*#define CsrStrCSpn strcspn*/
+/*#define CsrStrPBrk strpbrk*/
+/*#define CsrStrRChr strrchr*/
+/*#define CsrStrSpn strspn*/
+#define CsrStrStr strstr
+/*#define CsrStrTok strtok*/
+#define CsrMemSet memset
+#define CsrStrLen strlen
+/*#define CsrVsnprintf(s, n, format, arg) ((CsrInt32) vsnprintf((s), (n), (format), (arg)))*/
+#else /* !CSR_USE_STDC_LIB */
 void *CsrMemCpy(void *dest, const void *src, CsrSize count);
-void *CsrMemSet(void *dest, CsrUint8 c, CsrSize count);
 void *CsrMemMove(void *dest, const void *src, CsrSize count);
-CsrInt32 CsrMemCmp(const void *buf1, const void *buf2, CsrSize count);
-void *CsrMemDup(const void *buf1, CsrSize count);
 CsrCharString *CsrStrCpy(CsrCharString *dest, const CsrCharString *src);
 CsrCharString *CsrStrNCpy(CsrCharString *dest, const CsrCharString *src, CsrSize count);
-int CsrStrNICmp(const CsrCharString *string1, const CsrCharString *string2, CsrSize count);
 CsrCharString *CsrStrCat(CsrCharString *dest, const CsrCharString *src);
 CsrCharString *CsrStrNCat(CsrCharString *dest, const CsrCharString *src, CsrSize count);
-CsrCharString *CsrStrStr(const CsrCharString *string1, const CsrCharString *string2);
-CsrSize CsrStrLen(const CsrCharString *string);
+CsrInt32 CsrMemCmp(const void *buf1, const void *buf2, CsrSize count);
 CsrInt32 CsrStrCmp(const CsrCharString *string1, const CsrCharString *string2);
 CsrInt32 CsrStrNCmp(const CsrCharString *string1, const CsrCharString *string2, CsrSize count);
-CsrCharString *CsrStrDup(const CsrCharString *string);
 CsrCharString *CsrStrChr(const CsrCharString *string, CsrCharString c);
-CsrUint32 CsrStrToInt(const CsrCharString *string);
+CsrCharString *CsrStrStr(const CsrCharString *string1, const CsrCharString *string2);
+void *CsrMemSet(void *dest, CsrUint8 c, CsrSize count);
+CsrSize CsrStrLen(const CsrCharString *string);
+#endif /* !CSR_USE_STDC_LIB */
 CsrInt32 CsrVsnprintf(CsrCharString *string, CsrSize count, const CsrCharString *format, va_list args);
+
+/*------------------------------------------------------------------*/
+/* Non-standard utility functions */
+/*------------------------------------------------------------------*/
+void *CsrMemDup(const void *buf1, CsrSize count);
+int CsrStrNICmp(const CsrCharString *string1, const CsrCharString *string2, CsrSize count);
+CsrCharString *CsrStrDup(const CsrCharString *string);
+CsrUint32 CsrStrToInt(const CsrCharString *string);
 CsrCharString *CsrStrNCpyZero(CsrCharString *dest, const CsrCharString *src, CsrSize count);
 
 /*------------------------------------------------------------------*/

drivers/staging/csr/csr_wifi_common.h

@@ -99,7 +99,7 @@ typedef struct
 #define CSR_WIFI_RESULT_INVALID_INTERFACE_TAG     ((CsrResult) 0x000B)
 #define CSR_WIFI_RESULT_P2P_NOA_CONFIG_CONFLICT   ((CsrResult) 0x000C)
 
-#define CSR_WIFI_VERSION	"5.0.3.0"
+#define CSR_WIFI_VERSION	"5.1.0.0"
 
 #ifdef __cplusplus
 }

drivers/staging/csr/csr_wifi_hip_card.h

@@ -1,6 +1,6 @@
 /*****************************************************************************
 
-            (c) Cambridge Silicon Radio Limited 2011
+            (c) Cambridge Silicon Radio Limited 2012
             All rights reserved and confidential information of CSR
 
             Refer to LICENSE.txt included with this source for details
@@ -81,6 +81,15 @@ CsrResult CardWriteBulkData(card_t *card, card_signal_t *csptr, unifi_TrafficQue
  */
 void CardClearFromHostDataSlot(card_t *card, const CsrInt16 aSlotNum);
 
+#ifdef CSR_WIFI_REQUEUE_PACKET_TO_HAL
+/*****************************************************************************
+ * CardClearFromHostDataSlotWithoutFreeingBulkData - Clear the data stot
+ * without freeing the bulk data
+ */
+
+void CardClearFromHostDataSlotWithoutFreeingBulkData(card_t *card, const CsrInt16 aSlotNum);
+#endif
+
 /*****************************************************************************
  * CardGetFreeFromHostDataSlots -
  */

drivers/staging/csr/csr_wifi_hip_card_sdio.c

@@ -1,6 +1,6 @@
 /*****************************************************************************
 
-            (c) Cambridge Silicon Radio Limited 2011
+            (c) Cambridge Silicon Radio Limited 2012
             All rights reserved and confidential information of CSR
 
             Refer to LICENSE.txt included with this source for details
@@ -323,7 +323,7 @@ CsrResult unifi_init(card_t *card)
      * have requested a mini-coredump which needs to be captured now the
      * SDIO interface is alive.
      */
-    unifi_coredump_handle_request(card);
+    (void)unifi_coredump_handle_request(card);
 
     /*
      * Probe to see if the UniFi has ROM/flash to boot from. CSR6xxx should do.
@@ -1616,14 +1616,14 @@ static CsrResult card_allocate_memory_resources(card_t *card)
     /* Reset any state carried forward from a previous life */
     card->fh_command_queue.q_rd_ptr = 0;
     card->fh_command_queue.q_wr_ptr = 0;
-    CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
-                "fh_cmd_q");
+    (void)CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
+                      "fh_cmd_q");
     for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
     {
         card->fh_traffic_queue[i].q_rd_ptr = 0;
         card->fh_traffic_queue[i].q_wr_ptr = 0;
-        CsrSnprintf(card->fh_traffic_queue[i].name,
-                    UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
+        (void)CsrSnprintf(card->fh_traffic_queue[i].name,
+                          UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
     }
 #ifndef CSR_WIFI_HIP_TA_DISABLE
     unifi_ta_sampling_init(card);
@@ -1634,7 +1634,7 @@ static CsrResult card_allocate_memory_resources(card_t *card)
     /*
      * Allocate memory for the from-host and to-host signal buffers.
      */
-    card->fh_buffer.buf = CsrMemAlloc(UNIFI_FH_BUF_SIZE);
+    card->fh_buffer.buf = CsrMemAllocDma(UNIFI_FH_BUF_SIZE);
     if (card->fh_buffer.buf == NULL)
     {
         unifi_error(card->ospriv, "Failed to allocate memory for F-H signals\n");
@@ -1645,7 +1645,7 @@ static CsrResult card_allocate_memory_resources(card_t *card)
     card->fh_buffer.ptr = card->fh_buffer.buf;
     card->fh_buffer.count = 0;
 
-    card->th_buffer.buf = CsrMemAlloc(UNIFI_FH_BUF_SIZE);
+    card->th_buffer.buf = CsrMemAllocDma(UNIFI_FH_BUF_SIZE);
     if (card->th_buffer.buf == NULL)
     {
         unifi_error(card->ospriv, "Failed to allocate memory for T-H signals\n");
@@ -1693,6 +1693,12 @@ static CsrResult card_allocate_memory_resources(card_t *card)
         return CSR_WIFI_HIP_RESULT_NO_MEMORY;
     }
 
+    /* Initialise host tag entries for from-host bulk data slots */
+    for (i = 0; i < n; i++)
+    {
+        card->fh_slot_host_tag_record[i] = CSR_WIFI_HIP_RESERVED_HOST_TAG;
+    }
+
 
     /* Allocate memory for the array of pointers */
     n = cfg_data->num_tohost_data_slots;
@@ -1811,15 +1817,15 @@ static void card_free_memory_resources(card_t *card)
 
     if (card->fh_buffer.buf)
     {
-        CsrMemFree(card->fh_buffer.buf);
+        CsrMemFreeDma(card->fh_buffer.buf);
     }
     card->fh_buffer.ptr = card->fh_buffer.buf = NULL;
     card->fh_buffer.bufsize = 0;
     card->fh_buffer.count = 0;
 
     if (card->th_buffer.buf)
     {
-        CsrMemFree(card->th_buffer.buf);
+        CsrMemFreeDma(card->th_buffer.buf);
     }
     card->th_buffer.ptr = card->th_buffer.buf = NULL;
     card->th_buffer.bufsize = 0;
@@ -1842,14 +1848,14 @@ static void card_init_soft_queues(card_t *card)
     /* Reset any state carried forward from a previous life */
     card->fh_command_queue.q_rd_ptr = 0;
     card->fh_command_queue.q_wr_ptr = 0;
-    CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
-                "fh_cmd_q");
+    (void)CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
+                      "fh_cmd_q");
     for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
     {
         card->fh_traffic_queue[i].q_rd_ptr = 0;
         card->fh_traffic_queue[i].q_wr_ptr = 0;
-        CsrSnprintf(card->fh_traffic_queue[i].name,
-                    UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
+        (void)CsrSnprintf(card->fh_traffic_queue[i].name,
+                          UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
     }
 #ifndef CSR_WIFI_HIP_TA_DISABLE
     unifi_ta_sampling_init(card);
@@ -2399,6 +2405,57 @@ void CardClearFromHostDataSlot(card_t *card, const CsrInt16 slot)
 } /* CardClearFromHostDataSlot() */
 
 
+#ifdef CSR_WIFI_REQUEUE_PACKET_TO_HAL
+/*
+ * ---------------------------------------------------------------------------
+ *  CardClearFromHostDataSlotWithoutFreeingBulkData
+ *
+ *      Clear the given data slot with out freeing the bulk data.
+ *
+ *  Arguments:
+ *      card            Pointer to Card object
+ *      slot            Index of the signal slot to clear.
+ *
+ *  Returns:
+ *      None.
+ * ---------------------------------------------------------------------------
+ */
+void CardClearFromHostDataSlotWithoutFreeingBulkData(card_t *card, const CsrInt16 slot)
+{
+    CsrUint8 queue = card->from_host_data[slot].queue;
+
+    /* Initialise the from_host data slot so it can be re-used,
+     * Set length field in from_host_data array to 0.
+     */
+    UNIFI_INIT_BULK_DATA(&card->from_host_data[slot].bd);
+
+    queue = card->from_host_data[slot].queue;
+
+    if (queue < UNIFI_NO_OF_TX_QS)
+    {
+        if (card->dynamic_slot_data.from_host_used_slots[queue] == 0)
+        {
+            unifi_error(card->ospriv, "Goofed up used slots q = %d used slots = %d\n",
+                        queue,
+                        card->dynamic_slot_data.from_host_used_slots[queue]);
+        }
+        else
+        {
+            card->dynamic_slot_data.from_host_used_slots[queue]--;
+        }
+        card->dynamic_slot_data.packets_txed[queue]++;
+        card->dynamic_slot_data.total_packets_txed++;
+        if (card->dynamic_slot_data.total_packets_txed >=
+            card->dynamic_slot_data.packets_interval)
+        {
+            CardReassignDynamicReservation(card);
+        }
+    }
+} /* CardClearFromHostDataSlotWithoutFreeingBulkData() */
+
+
+#endif
+
 CsrUint16 CardGetDataSlotSize(card_t *card)
 {
     return card->config_data.data_slot_size;