Merge branch 'master' into tk71

[mv-sheeva.git] / drivers / staging / ath6kl / hif / sdio / linux_sdio / include / hif_internal.h

diff --git a/drivers/staging/ath6kl/hif/sdio/linux_sdio/include/hif_internal.h b/drivers/staging/ath6kl/hif/sdio/linux_sdio/include/hif_internal.h
new file mode 100644 (file)
index 0000000..857f35f
--- /dev/null
+++ b/drivers/staging/ath6kl/hif/sdio/linux_sdio/include/hif_internal.h
@@ -0,0 +1,134 @@
+//------------------------------------------------------------------------------
+// <copyright file="hif_internal.h" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// 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.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// internal header file for hif layer
+//
+// Author(s): ="Atheros"
+//==============================================================================
+#ifndef _HIF_INTERNAL_H_
+#define _HIF_INTERNAL_H_
+
+#include "a_config.h"
+#include "athdefs.h"
+#include "a_types.h"
+#include "a_osapi.h"
+#include "hif.h"
+#include "../../../common/hif_sdio_common.h"
+#include <linux/scatterlist.h>
+#define HIF_LINUX_MMC_SCATTER_SUPPORT
+
+#define BUS_REQUEST_MAX_NUM                64
+
+#define SDIO_CLOCK_FREQUENCY_DEFAULT       25000000
+#define SDWLAN_ENABLE_DISABLE_TIMEOUT      20
+#define FLAGS_CARD_ENAB                    0x02
+#define FLAGS_CARD_IRQ_UNMSK               0x04
+
+#define HIF_MBOX_BLOCK_SIZE                HIF_DEFAULT_IO_BLOCK_SIZE
+#define HIF_MBOX0_BLOCK_SIZE               1
+#define HIF_MBOX1_BLOCK_SIZE               HIF_MBOX_BLOCK_SIZE
+#define HIF_MBOX2_BLOCK_SIZE               HIF_MBOX_BLOCK_SIZE
+#define HIF_MBOX3_BLOCK_SIZE               HIF_MBOX_BLOCK_SIZE
+
+struct _HIF_SCATTER_REQ_PRIV;
+
+typedef struct bus_request {
+    struct bus_request *next;       /* link list of available requests */
+    struct bus_request *inusenext;  /* link list of in use requests */
+    struct semaphore sem_req;
+    A_UINT32 address;               /* request data */
+    A_UCHAR *buffer;
+    A_UINT32 length;
+    A_UINT32 request;
+    void *context;
+    A_STATUS status;
+    struct _HIF_SCATTER_REQ_PRIV *pScatterReq;      /* this request is a scatter request */
+} BUS_REQUEST;
+
+struct hif_device {
+    struct sdio_func *func;
+    spinlock_t asynclock;
+    struct task_struct* async_task;             /* task to handle async commands */
+    struct semaphore sem_async;                 /* wake up for async task */
+    int    async_shutdown;                      /* stop the async task */
+    struct completion async_completion;          /* thread completion */
+    BUS_REQUEST   *asyncreq;                    /* request for async tasklet */
+    BUS_REQUEST *taskreq;                       /*  async tasklet data */
+    spinlock_t lock;
+    BUS_REQUEST *s_busRequestFreeQueue;         /* free list */
+    BUS_REQUEST busRequest[BUS_REQUEST_MAX_NUM]; /* available bus requests */
+    void     *claimedContext;
+    HTC_CALLBACKS htcCallbacks;
+    A_UINT8     *dma_buffer;
+    DL_LIST      ScatterReqHead;                /* scatter request list head */
+    A_BOOL       scatter_enabled;               /* scatter enabled flag */
+    A_BOOL   is_suspend;
+    A_BOOL   is_disabled;
+    atomic_t   irqHandling;
+    HIF_DEVICE_POWER_CHANGE_TYPE powerConfig;
+    const struct sdio_device_id *id;
+};
+
+#define HIF_DMA_BUFFER_SIZE (32 * 1024)
+#define CMD53_FIXED_ADDRESS 1
+#define CMD53_INCR_ADDRESS  2
+
+BUS_REQUEST *hifAllocateBusRequest(HIF_DEVICE *device);
+void hifFreeBusRequest(HIF_DEVICE *device, BUS_REQUEST *busrequest);
+void AddToAsyncList(HIF_DEVICE *device, BUS_REQUEST *busrequest);
+
+#ifdef HIF_LINUX_MMC_SCATTER_SUPPORT
+
+#define MAX_SCATTER_REQUESTS             4
+#define MAX_SCATTER_ENTRIES_PER_REQ      16
+#define MAX_SCATTER_REQ_TRANSFER_SIZE    32*1024
+
+typedef struct _HIF_SCATTER_REQ_PRIV {
+    HIF_SCATTER_REQ     *pHifScatterReq;  /* HIF scatter request with allocated entries */   
+    HIF_DEVICE          *device;          /* this device */
+    BUS_REQUEST         *busrequest;      /* request associated with request */
+        /* scatter list for linux */    
+    struct scatterlist  sgentries[MAX_SCATTER_ENTRIES_PER_REQ];   
+} HIF_SCATTER_REQ_PRIV;
+
+#define ATH_DEBUG_SCATTER  ATH_DEBUG_MAKE_MODULE_MASK(0)
+
+A_STATUS SetupHIFScatterSupport(HIF_DEVICE *device, HIF_DEVICE_SCATTER_SUPPORT_INFO *pInfo);
+void CleanupHIFScatterResources(HIF_DEVICE *device);
+A_STATUS DoHifReadWriteScatter(HIF_DEVICE *device, BUS_REQUEST *busrequest);
+
+#else  // HIF_LINUX_MMC_SCATTER_SUPPORT
+
+static inline A_STATUS SetupHIFScatterSupport(HIF_DEVICE *device, HIF_DEVICE_SCATTER_SUPPORT_INFO *pInfo) 
+{
+    return A_ENOTSUP;
+}
+
+static inline A_STATUS DoHifReadWriteScatter(HIF_DEVICE *device, BUS_REQUEST *busrequest) 
+{
+    return A_ENOTSUP;
+}
+
+#define CleanupHIFScatterResources(d) { }
+
+#endif // HIF_LINUX_MMC_SCATTER_SUPPORT
+
+#endif // _HIF_INTERNAL_H_
+