diff options
Diffstat (limited to 'package/broadcom-wl/src/kmod/linux_osl.h')
| -rw-r--r-- | package/broadcom-wl/src/kmod/linux_osl.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/package/broadcom-wl/src/kmod/linux_osl.h b/package/broadcom-wl/src/kmod/linux_osl.h new file mode 100644 index 0000000..f6af612 --- /dev/null +++ b/package/broadcom-wl/src/kmod/linux_osl.h @@ -0,0 +1,171 @@ +/* + * 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.h,v 1.1.1.13 2006/04/08 06:13:39 honor Exp $ + */ + +#ifndef _linux_osl_h_ +#define _linux_osl_h_ + +#include <typedefs.h> +#include <linuxver.h> +#include <osl.h> + +#define OSL_PKTTAG_SZ 32 /* Size of PktTag */ + +/* osl handle type forward declaration */ +typedef struct osl_dmainfo osldma_t; + +/* OSL initialization */ +extern osl_t *osl_attach(void *pdev, bool pkttag); +extern void osl_detach(osl_t *osh); + +/* host/bus architecture-specific byte swap */ +#define BUS_SWAP32(v) (v) +#define MALLOC_FAILED(osh) osl_malloc_failed((osh)) + +extern void *osl_malloc(osl_t *osh, uint size); +extern void osl_mfree(osl_t *osh, void *addr, uint size); +extern uint osl_malloced(osl_t *osh); +extern uint osl_malloc_failed(osl_t *osh); + +/* API for DMA addressing capability */ +#define DMA_MAP(osh, va, size, direction, p) \ + osl_dma_map((osh), (va), (size), (direction)) +#define DMA_UNMAP(osh, pa, size, direction, p) \ + osl_dma_unmap((osh), (pa), (size), (direction)) +static inline uint +osl_dma_map(void *osh, void *va, uint size, int direction) +{ + int dir; + struct pci_dev *dev; + + dev = (osh == NULL ? NULL : ((osl_t *)osh)->pdev); + dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE; + return (pci_map_single(dev, va, size, dir)); +} + +static inline void +osl_dma_unmap(void *osh, uint pa, uint size, int direction) +{ + int dir; + struct pci_dev *dev; + + dev = (osh == NULL ? NULL : ((osl_t *)osh)->pdev); + dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE; + pci_unmap_single(dev, (uint32)pa, size, dir); +} + +#define OSL_DMADDRWIDTH(osh, addrwidth) do {} while (0) +#define DMA_CONSISTENT_ALIGN PAGE_SIZE +#define DMA_ALLOC_CONSISTENT(osh, size, pap, dmah) \ + osl_dma_alloc_consistent((osh), (size), (pap)) +#define DMA_FREE_CONSISTENT(osh, va, size, pa, dmah) \ + osl_dma_free_consistent((osh), (void*)(va), (size), (pa)) +static inline void* +osl_dma_alloc_consistent(osl_t *osh, uint size, ulong *pap) +{ + return (pci_alloc_consistent(osh->pdev, size, (dma_addr_t*)pap)); +} + +static inline void +osl_dma_free_consistent(osl_t *osh, void *va, uint size, ulong pa) +{ + pci_free_consistent(osh->pdev, size, va, (dma_addr_t)pa); +} + + +/* register access macros */ +#if defined(BCMJTAG) +#include <bcmjtag.h> +#define R_REG(osh, r) bcmjtag_read(NULL, (uint32)(r), sizeof(*(r))) +#define W_REG(osh, r, v) bcmjtag_write(NULL, (uint32)(r), (uint32)(v), sizeof(*(r))) +#endif /* defined(BCMSDIO) */ + +/* packet primitives */ +#define PKTGET(osh, len, send) osl_pktget((osh), (len), (send)) +#define PKTFREE(osh, skb, send) osl_pktfree((osh), (skb)) +#define PKTDATA(osh, skb) (((struct sk_buff*)(skb))->data) +#define PKTLEN(osh, skb) (((struct sk_buff*)(skb))->len) +#define PKTHEADROOM(osh, skb) (PKTDATA(osh, skb)-(((struct sk_buff*)(skb))->head)) +#define PKTTAILROOM(osh, skb) ((((struct sk_buff*)(skb))->end)-(((struct sk_buff*)(skb))->tail)) +#define PKTNEXT(osh, skb) (((struct sk_buff*)(skb))->next) +#define PKTSETNEXT(osh, skb, x) (((struct sk_buff*)(skb))->next = (struct sk_buff*)(x)) +#define PKTSETLEN(osh, skb, len) __skb_trim((struct sk_buff*)(skb), (len)) +#define PKTPUSH(osh, skb, bytes) skb_push((struct sk_buff*)(skb), (bytes)) +#define PKTPULL(osh, skb, bytes) skb_pull((struct sk_buff*)(skb), (bytes)) +#define PKTDUP(osh, skb) osl_pktdup((osh), (skb)) +#define PKTTAG(skb) ((void*)(((struct sk_buff*)(skb))->cb)) +#define PKTALLOCED(osh) osl_pktalloced((osh)) +#define PKTLIST_DUMP(osh, buf) + +/* Convert a native(OS) packet to driver packet. + * In the process, native packet is destroyed, there is no copying + * Also, a packettag is zeroed out + */ +static INLINE void * +osl_pkt_frmnative(struct osl_pubinfo *osh, struct sk_buff *skb) +{ + struct sk_buff *nskb; + + if (osh->pkttag) + bzero((void*)skb->cb, OSL_PKTTAG_SZ); + + /* Increment the packet counter */ + for (nskb = skb; nskb; nskb = nskb->next) { + osh->pktalloced++; + } + + return (void *)skb; +} +#define PKTFRMNATIVE(osh, skb) osl_pkt_frmnative(((struct osl_pubinfo *)osh), \ + (struct sk_buff*)(skb)) + +/* Convert a driver packet to native(OS) packet + * In the process, packettag is zeroed out before sending up + * IP code depends on skb->cb to be setup correctly with various options + * In our case, that means it should be 0 + */ +static INLINE struct sk_buff * +osl_pkt_tonative(struct osl_pubinfo *osh, void *pkt) +{ + struct sk_buff *nskb; + + if (osh->pkttag) + bzero(((struct sk_buff*)pkt)->cb, OSL_PKTTAG_SZ); + + /* Decrement the packet counter */ + for (nskb = (struct sk_buff *)pkt; nskb; nskb = nskb->next) { + osh->pktalloced--; + } + + return (struct sk_buff *)pkt; +} +#define PKTTONATIVE(osh, pkt) osl_pkt_tonative((struct osl_pubinfo *)(osh), (pkt)) + +#define PKTLINK(skb) (((struct sk_buff*)(skb))->prev) +#define PKTSETLINK(skb, x) (((struct sk_buff*)(skb))->prev = (struct sk_buff*)(x)) +#define PKTPRIO(skb) (((struct sk_buff*)(skb))->priority) +#define PKTSETPRIO(skb, x) (((struct sk_buff*)(skb))->priority = (x)) +#define PKTSHARED(skb) (((struct sk_buff*)(skb))->cloned) + +extern void *osl_pktget(osl_t *osh, uint len, bool send); +extern void osl_pktfree(osl_t *osh, void *skb); +extern void *osl_pktdup(osl_t *osh, void *skb); +extern uint osl_pktalloced(osl_t *osh); + +#define OSL_ERROR(bcmerror) osl_error(bcmerror) +extern int osl_error(int bcmerror); + +/* the largest reasonable packet buffer driver uses for ethernet MTU in bytes */ +#define PKTBUFSZ 2048 /* largest reasonable packet buffer, driver uses for ethernet MTU */ + +#endif /* _linux_osl_h_ */ |