diff options
Diffstat (limited to 'package/broadcom-wl/src/kmod/linux_osl.c')
| -rw-r--r-- | package/broadcom-wl/src/kmod/linux_osl.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/package/broadcom-wl/src/kmod/linux_osl.c b/package/broadcom-wl/src/kmod/linux_osl.c new file mode 100644 index 0000000000..d702961032 --- /dev/null +++ b/package/broadcom-wl/src/kmod/linux_osl.c @@ -0,0 +1,269 @@ +/* + * 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); +} + +/* Free the driver packet. Free the tag if present */ +void +osl_pktfree(osl_t *osh, void *p) +{ + struct sk_buff *skb, *nskb; + + skb = (struct sk_buff*) p; + + /* 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); +} + |