--- /dev/null
+/*
+ * Linux OS Independent Layer
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ *
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: linux_osl.c,v 1.1.1.14 2006/04/08 06:13:39 honor Exp $
+ */
+
+#define LINUX_OSL
+
+#include <typedefs.h>
+#include <bcmendian.h>
+#include <linux/module.h>
+#include <linuxver.h>
+#include <bcmdefs.h>
+#include <osl.h>
+#include "linux_osl.h"
+#include <bcmutils.h>
+#include <linux/delay.h>
+#ifdef mips
+#include <asm/paccess.h>
+#endif /* mips */
+#include <pcicfg.h>
+
+#define PCI_CFG_RETRY 10
+
+#define OS_HANDLE_MAGIC 0x1234abcd /* Magic # to recognise osh */
+#define BCM_MEM_FILENAME_LEN 24 /* Mem. filename length */
+
+typedef struct bcm_mem_link {
+ struct bcm_mem_link *prev;
+ struct bcm_mem_link *next;
+ uint size;
+ int line;
+ char file[BCM_MEM_FILENAME_LEN];
+} bcm_mem_link_t;
+
+static int16 linuxbcmerrormap[] = \
+{ 0, /* 0 */
+ -EINVAL, /* BCME_ERROR */
+ -EINVAL, /* BCME_BADARG */
+ -EINVAL, /* BCME_BADOPTION */
+ -EINVAL, /* BCME_NOTUP */
+ -EINVAL, /* BCME_NOTDOWN */
+ -EINVAL, /* BCME_NOTAP */
+ -EINVAL, /* BCME_NOTSTA */
+ -EINVAL, /* BCME_BADKEYIDX */
+ -EINVAL, /* BCME_RADIOOFF */
+ -EINVAL, /* BCME_NOTBANDLOCKED */
+ -EINVAL, /* BCME_NOCLK */
+ -EINVAL, /* BCME_BADRATESET */
+ -EINVAL, /* BCME_BADBAND */
+ -E2BIG, /* BCME_BUFTOOSHORT */
+ -E2BIG, /* BCME_BUFTOOLONG */
+ -EBUSY, /* BCME_BUSY */
+ -EINVAL, /* BCME_NOTASSOCIATED */
+ -EINVAL, /* BCME_BADSSIDLEN */
+ -EINVAL, /* BCME_OUTOFRANGECHAN */
+ -EINVAL, /* BCME_BADCHAN */
+ -EFAULT, /* BCME_BADADDR */
+ -ENOMEM, /* BCME_NORESOURCE */
+ -EOPNOTSUPP, /* BCME_UNSUPPORTED */
+ -EMSGSIZE, /* BCME_BADLENGTH */
+ -EINVAL, /* BCME_NOTREADY */
+ -EPERM, /* BCME_NOTPERMITTED */
+ -ENOMEM, /* BCME_NOMEM */
+ -EINVAL, /* BCME_ASSOCIATED */
+ -ERANGE, /* BCME_RANGE */
+ -EINVAL, /* BCME_NOTFOUND */
+ -EINVAL, /* BCME_WME_NOT_ENABLED */
+ -EINVAL, /* BCME_TSPEC_NOTFOUND */
+ -EINVAL, /* BCME_ACM_NOTSUPPORTED */
+ -EINVAL, /* BCME_NOT_WME_ASSOCIATION */
+ -EIO, /* BCME_SDIO_ERROR */
+ -ENODEV /* BCME_DONGLE_DOWN */
+};
+
+/* translate bcmerrors into linux errors */
+int
+osl_error(int bcmerror)
+{
+ int abs_bcmerror;
+ int array_size = ARRAYSIZE(linuxbcmerrormap);
+
+ abs_bcmerror = ABS(bcmerror);
+
+ if (bcmerror > 0)
+ abs_bcmerror = 0;
+
+ else if (abs_bcmerror >= array_size)
+ abs_bcmerror = BCME_ERROR;
+
+ return linuxbcmerrormap[abs_bcmerror];
+}
+
+osl_t *
+osl_attach(void *pdev, bool pkttag)
+{
+ osl_t *osh;
+
+ osh = kmalloc(sizeof(osl_t), GFP_ATOMIC);
+ ASSERT(osh);
+
+ bzero(osh, sizeof(osl_t));
+
+ /*
+ * check the cases where
+ * 1.Error code Added to bcmerror table, but forgot to add it to the OS
+ * dependent error code
+ * 2. Error code is added to the bcmerror table, but forgot to add the
+ * corresponding errorstring(dummy call to bcmerrorstr)
+ */
+ bcmerrorstr(0);
+ ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(linuxbcmerrormap) - 1));
+
+ osh->magic = OS_HANDLE_MAGIC;
+ osh->malloced = 0;
+ osh->failed = 0;
+ osh->dbgmem_list = NULL;
+ osh->pdev = pdev;
+ osh->pub.pkttag = pkttag;
+
+ return osh;
+}
+
+void
+osl_detach(osl_t *osh)
+{
+ if (osh == NULL)
+ return;
+
+ ASSERT(osh->magic == OS_HANDLE_MAGIC);
+ kfree(osh);
+}
+
+/* Return a new packet. zero out pkttag */
+void*
+osl_pktget(osl_t *osh, uint len, bool send)
+{
+ struct sk_buff *skb;
+
+ if ((skb = dev_alloc_skb(len))) {
+ skb_put(skb, len);
+ skb->priority = 0;
+
+#ifdef BCMDBG_PKT
+ pktlist_add(&(osh->pktlist), (void *) skb);
+#endif /* BCMDBG_PKT */
+
+ osh->pub.pktalloced++;
+ }
+
+ return ((void*) skb);
+}
+
+typedef void (*pktfree_cb_fn_t)(void *ctx, void *pkt, uint16 status);
+/* Free the driver packet. Free the tag if present */
+void
+osl_pktfree(osl_t *osh, void *p, bool send)
+{
+ struct sk_buff *skb, *nskb;
+ pktfree_cb_fn_t tx_fn = osh->pub.tx_fn;
+
+ skb = (struct sk_buff*) p;
+
+ if (send && tx_fn)
+ tx_fn(osh->pub.tx_ctx, p, 0);
+
+ /* perversion: we use skb->next to chain multi-skb packets */
+ while (skb) {
+ nskb = skb->next;
+ skb->next = NULL;
+
+#ifdef BCMDBG_PKT
+ pktlist_remove(&(osh->pktlist), (void *) skb);
+#endif /* BCMDBG_PKT */
+
+ if (skb->destructor) {
+ /* cannot kfree_skb() on hard IRQ (net/core/skbuff.c) if destructor exists
+ */
+ dev_kfree_skb_any(skb);
+ } else {
+ /* can free immediately (even in_irq()) if destructor does not exist */
+ dev_kfree_skb(skb);
+ }
+
+ osh->pub.pktalloced--;
+
+ skb = nskb;
+ }
+}
+
+void*
+osl_malloc(osl_t *osh, uint size)
+{
+ void *addr;
+
+ /* only ASSERT if osh is defined */
+ if (osh)
+ ASSERT(osh->magic == OS_HANDLE_MAGIC);
+
+ if ((addr = kmalloc(size, GFP_ATOMIC)) == NULL) {
+ if (osh)
+ osh->failed++;
+ return (NULL);
+ }
+ if (osh)
+ osh->malloced += size;
+
+ return (addr);
+}
+
+void
+osl_mfree(osl_t *osh, void *addr, uint size)
+{
+ if (osh) {
+ ASSERT(osh->magic == OS_HANDLE_MAGIC);
+ osh->malloced -= size;
+ }
+ kfree(addr);
+}
+
+uint
+osl_malloced(osl_t *osh)
+{
+ ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
+ return (osh->malloced);
+}
+
+uint osl_malloc_failed(osl_t *osh)
+{
+ ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
+ return (osh->failed);
+}
+
+#undef osl_delay
+void
+osl_delay(uint usec)
+{
+ OSL_DELAY(usec);
+}
+
+/* Clone a packet.
+ * The pkttag contents are NOT cloned.
+ */
+void *
+osl_pktdup(osl_t *osh, void *skb)
+{
+ void * p;
+
+ if ((p = skb_clone((struct sk_buff*)skb, GFP_ATOMIC)) == NULL)
+ return NULL;
+
+ /* skb_clone copies skb->cb.. we don't want that */
+ if (osh->pub.pkttag)
+ bzero((void*)((struct sk_buff *)p)->cb, OSL_PKTTAG_SZ);
+
+ /* Increment the packet counter */
+ osh->pub.pktalloced++;
+ return (p);
+}
+
+uint
+osl_pktalloced(osl_t *osh)
+{
+ return (osh->pub.pktalloced);
+}
+
projects / openwrt / staging / mkresin.git / blobdiff