2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <bcmendian.h>
23 #include <linux/delay.h>
25 #include <asm/paccess.h>
31 #define PCI_CFG_RETRY 10
33 #define OS_HANDLE_MAGIC 0x1234abcd /* Magic # to recognise osh */
34 #define BCM_MEM_FILENAME_LEN 24 /* Mem. filename length */
36 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
37 #define MAX_STATIC_BUF_NUM 16
38 #define STATIC_BUF_SIZE (PAGE_SIZE*2)
39 #define STATIC_BUF_TOTAL_LEN (MAX_STATIC_BUF_NUM*STATIC_BUF_SIZE)
40 typedef struct bcm_static_buf
{
41 struct semaphore static_sem
;
42 unsigned char *buf_ptr
;
43 unsigned char buf_use
[MAX_STATIC_BUF_NUM
];
46 static bcm_static_buf_t
*bcm_static_buf
= 0;
48 #define MAX_STATIC_PKT_NUM 8
49 typedef struct bcm_static_pkt
{
50 struct sk_buff
*skb_4k
[MAX_STATIC_PKT_NUM
];
51 struct sk_buff
*skb_8k
[MAX_STATIC_PKT_NUM
];
52 struct semaphore osl_pkt_sem
;
53 unsigned char pkt_use
[MAX_STATIC_PKT_NUM
* 2];
55 static bcm_static_pkt_t
*bcm_static_skb
= 0;
56 #endif /* DHD_USE_STATIC_BUF */
57 typedef struct bcm_mem_link
{
58 struct bcm_mem_link
*prev
;
59 struct bcm_mem_link
*next
;
62 char file
[BCM_MEM_FILENAME_LEN
];
72 bcm_mem_link_t
*dbgmem_list
;
75 /* Global ASSERT type flag */
79 static s16 linuxbcmerrormap
[] = { 0, /* 0 */
80 -EINVAL
, /* BCME_ERROR */
81 -EINVAL
, /* BCME_BADARG */
82 -EINVAL
, /* BCME_BADOPTION */
83 -EINVAL
, /* BCME_NOTUP */
84 -EINVAL
, /* BCME_NOTDOWN */
85 -EINVAL
, /* BCME_NOTAP */
86 -EINVAL
, /* BCME_NOTSTA */
87 -EINVAL
, /* BCME_BADKEYIDX */
88 -EINVAL
, /* BCME_RADIOOFF */
89 -EINVAL
, /* BCME_NOTBANDLOCKED */
90 -EINVAL
, /* BCME_NOCLK */
91 -EINVAL
, /* BCME_BADRATESET */
92 -EINVAL
, /* BCME_BADBAND */
93 -E2BIG
, /* BCME_BUFTOOSHORT */
94 -E2BIG
, /* BCME_BUFTOOLONG */
95 -EBUSY
, /* BCME_BUSY */
96 -EINVAL
, /* BCME_NOTASSOCIATED */
97 -EINVAL
, /* BCME_BADSSIDLEN */
98 -EINVAL
, /* BCME_OUTOFRANGECHAN */
99 -EINVAL
, /* BCME_BADCHAN */
100 -EFAULT
, /* BCME_BADADDR */
101 -ENOMEM
, /* BCME_NORESOURCE */
102 -EOPNOTSUPP
, /* BCME_UNSUPPORTED */
103 -EMSGSIZE
, /* BCME_BADLENGTH */
104 -EINVAL
, /* BCME_NOTREADY */
105 -EPERM
, /* BCME_NOTPERMITTED */
106 -ENOMEM
, /* BCME_NOMEM */
107 -EINVAL
, /* BCME_ASSOCIATED */
108 -ERANGE
, /* BCME_RANGE */
109 -EINVAL
, /* BCME_NOTFOUND */
110 -EINVAL
, /* BCME_WME_NOT_ENABLED */
111 -EINVAL
, /* BCME_TSPEC_NOTFOUND */
112 -EINVAL
, /* BCME_ACM_NOTSUPPORTED */
113 -EINVAL
, /* BCME_NOT_WME_ASSOCIATION */
114 -EIO
, /* BCME_SDIO_ERROR */
115 -ENODEV
, /* BCME_DONGLE_DOWN */
116 -EINVAL
, /* BCME_VERSION */
117 -EIO
, /* BCME_TXFAIL */
118 -EIO
, /* BCME_RXFAIL */
119 -EINVAL
, /* BCME_NODEVICE */
120 -EINVAL
, /* BCME_NMODE_DISABLED */
121 -ENODATA
, /* BCME_NONRESIDENT */
123 /* When an new error code is added to bcmutils.h, add os
124 * spcecific error translation here as well
126 /* check if BCME_LAST changed since the last time this function was updated */
128 #error "You need to add a OS error translation in the linuxbcmerrormap \
129 for new error code defined in bcmutils.h"
133 /* translate bcmerrors into linux errors */
134 int osl_error(int bcmerror
)
138 else if (bcmerror
< BCME_LAST
)
139 bcmerror
= BCME_ERROR
;
141 /* Array bounds covered by ASSERT in osl_attach */
142 return linuxbcmerrormap
[-bcmerror
];
144 #endif /* BRCM_FULLMAC */
146 osl_t
*osl_attach(void *pdev
, uint bustype
, bool pkttag
)
150 osh
= kmalloc(sizeof(osl_t
), GFP_ATOMIC
);
153 bzero(osh
, sizeof(osl_t
));
156 /* Check that error map has the right number of entries in it */
157 ASSERT(ABS(BCME_LAST
) == (ARRAYSIZE(linuxbcmerrormap
) - 1));
158 #endif /* BRCM_FULLMAC */
160 osh
->magic
= OS_HANDLE_MAGIC
;
163 osh
->dbgmem_list
= NULL
;
165 osh
->pub
.pkttag
= pkttag
;
166 osh
->bustype
= bustype
;
172 osh
->pub
.mmbus
= TRUE
;
179 osh
->pub
.mmbus
= FALSE
;
186 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
187 if (!bcm_static_buf
) {
188 if (!(bcm_static_buf
=
189 (bcm_static_buf_t
*) dhd_os_prealloc(3,
190 STATIC_BUF_SIZE
+ STATIC_BUF_TOTAL_LEN
))) {
191 printk(KERN_ERR
"can not alloc static buf!\n");
193 printk(KERN_ERR
"alloc static buf at %x!\n",
194 (unsigned int)bcm_static_buf
);
196 init_MUTEX(&bcm_static_buf
->static_sem
);
198 bcm_static_buf
->buf_ptr
=
199 (unsigned char *)bcm_static_buf
+ STATIC_BUF_SIZE
;
203 if (!bcm_static_skb
) {
205 void *skb_buff_ptr
= 0;
207 (bcm_static_pkt_t
*) ((char *)bcm_static_buf
+ 2048);
208 skb_buff_ptr
= dhd_os_prealloc(4, 0);
210 bcopy(skb_buff_ptr
, bcm_static_skb
,
211 sizeof(struct sk_buff
*) * 16);
212 for (i
= 0; i
< MAX_STATIC_PKT_NUM
* 2; i
++)
213 bcm_static_skb
->pkt_use
[i
] = 0;
215 init_MUTEX(&bcm_static_skb
->osl_pkt_sem
);
217 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
219 #if defined(BCMDBG) && !defined(BRCM_FULLMAC)
222 ASSERT(OSL_PKTTAG_SZ
<= sizeof(skb
->cb
));
228 void osl_detach(osl_t
*osh
)
233 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
240 ASSERT(osh
->magic
== OS_HANDLE_MAGIC
);
244 /* Return a new packet. zero out pkttag */
245 void *BCMFASTPATH
osl_pktget(osl_t
*osh
, uint len
)
249 skb
= dev_alloc_skb(len
);
254 osh
->pub
.pktalloced
++;
260 /* Free the driver packet. Free the tag if present */
261 void BCMFASTPATH
osl_pktfree(osl_t
*osh
, void *p
, bool send
)
263 struct sk_buff
*skb
, *nskb
;
266 skb
= (struct sk_buff
*)p
;
269 if (send
&& osh
->pub
.tx_fn
)
270 osh
->pub
.tx_fn(osh
->pub
.tx_ctx
, p
, 0);
272 /* perversion: we use skb->next to chain multi-skb packets */
278 /* cannot kfree_skb() on hard IRQ (net/core/skbuff.c) if
281 dev_kfree_skb_any(skb
);
283 /* can free immediately (even in_irq()) if destructor
288 osh
->pub
.pktalloced
--;
294 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
295 void *osl_pktget_static(osl_t
*osh
, uint len
)
300 if (len
> (PAGE_SIZE
* 2)) {
301 printk(KERN_ERR
"Do we really need this big skb??\n");
302 return osl_pktget(osh
, len
);
305 down(&bcm_static_skb
->osl_pkt_sem
);
306 if (len
<= PAGE_SIZE
) {
307 for (i
= 0; i
< MAX_STATIC_PKT_NUM
; i
++) {
308 if (bcm_static_skb
->pkt_use
[i
] == 0)
312 if (i
!= MAX_STATIC_PKT_NUM
) {
313 bcm_static_skb
->pkt_use
[i
] = 1;
314 up(&bcm_static_skb
->osl_pkt_sem
);
316 skb
= bcm_static_skb
->skb_4k
[i
];
317 skb
->tail
= skb
->data
+ len
;
324 for (i
= 0; i
< MAX_STATIC_PKT_NUM
; i
++) {
325 if (bcm_static_skb
->pkt_use
[i
+ MAX_STATIC_PKT_NUM
] == 0)
329 if (i
!= MAX_STATIC_PKT_NUM
) {
330 bcm_static_skb
->pkt_use
[i
+ MAX_STATIC_PKT_NUM
] = 1;
331 up(&bcm_static_skb
->osl_pkt_sem
);
332 skb
= bcm_static_skb
->skb_8k
[i
];
333 skb
->tail
= skb
->data
+ len
;
339 up(&bcm_static_skb
->osl_pkt_sem
);
340 printk(KERN_ERR
"all static pkt in use!\n");
341 return osl_pktget(osh
, len
);
344 void osl_pktfree_static(osl_t
*osh
, void *p
, bool send
)
348 for (i
= 0; i
< MAX_STATIC_PKT_NUM
* 2; i
++) {
349 if (p
== bcm_static_skb
->skb_4k
[i
]) {
350 down(&bcm_static_skb
->osl_pkt_sem
);
351 bcm_static_skb
->pkt_use
[i
] = 0;
352 up(&bcm_static_skb
->osl_pkt_sem
);
357 return osl_pktfree(osh
, p
, send
);
359 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
361 uint32
osl_pci_read_config(osl_t
*osh
, uint offset
, uint size
)
364 uint retry
= PCI_CFG_RETRY
;
366 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
368 /* only 4byte access supported */
372 pci_read_config_dword(osh
->pdev
, offset
, &val
);
373 if (val
!= 0xffffffff)
378 if (retry
< PCI_CFG_RETRY
)
379 printk("PCI CONFIG READ access to %d required %d retries\n",
380 offset
, (PCI_CFG_RETRY
- retry
));
386 void osl_pci_write_config(osl_t
*osh
, uint offset
, uint size
, uint val
)
388 uint retry
= PCI_CFG_RETRY
;
390 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
392 /* only 4byte access supported */
396 pci_write_config_dword(osh
->pdev
, offset
, val
);
397 if (offset
!= PCI_BAR0_WIN
)
399 if (osl_pci_read_config(osh
, offset
, size
) == val
)
403 #if defined(BCMDBG) && !defined(BRCM_FULLMAC)
404 if (retry
< PCI_CFG_RETRY
)
405 printk("PCI CONFIG WRITE access to %d required %d retries\n",
406 offset
, (PCI_CFG_RETRY
- retry
));
410 /* return bus # for the pci device pointed by osh->pdev */
411 uint
osl_pci_bus(osl_t
*osh
)
413 ASSERT(osh
&& (osh
->magic
== OS_HANDLE_MAGIC
) && osh
->pdev
);
415 return ((struct pci_dev
*)osh
->pdev
)->bus
->number
;
418 /* return slot # for the pci device pointed by osh->pdev */
419 uint
osl_pci_slot(osl_t
*osh
)
421 ASSERT(osh
&& (osh
->magic
== OS_HANDLE_MAGIC
) && osh
->pdev
);
423 return PCI_SLOT(((struct pci_dev
*)osh
->pdev
)->devfn
);
426 void *osl_malloc(osl_t
*osh
, uint size
)
430 /* only ASSERT if osh is defined */
432 ASSERT(osh
->magic
== OS_HANDLE_MAGIC
);
434 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
435 if (bcm_static_buf
) {
437 if ((size
>= PAGE_SIZE
) && (size
<= STATIC_BUF_SIZE
)) {
438 down(&bcm_static_buf
->static_sem
);
439 for (i
= 0; i
< MAX_STATIC_BUF_NUM
; i
++) {
440 if (bcm_static_buf
->buf_use
[i
] == 0)
443 if (i
== MAX_STATIC_BUF_NUM
) {
444 up(&bcm_static_buf
->static_sem
);
445 printk(KERN_ERR
"all static buff in use!\n");
448 bcm_static_buf
->buf_use
[i
] = 1;
449 up(&bcm_static_buf
->static_sem
);
451 bzero(bcm_static_buf
->buf_ptr
+ STATIC_BUF_SIZE
* i
,
454 osh
->malloced
+= size
;
456 return (void *)(bcm_static_buf
->buf_ptr
+
457 STATIC_BUF_SIZE
* i
);
461 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
463 addr
= kmalloc(size
, GFP_ATOMIC
);
470 osh
->malloced
+= size
;
475 void osl_mfree(osl_t
*osh
, void *addr
, uint size
)
477 #if defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF)
478 if (bcm_static_buf
) {
479 if ((addr
> (void *)bcm_static_buf
) && ((unsigned char *)addr
480 <= ((unsigned char *)
482 STATIC_BUF_TOTAL_LEN
))) {
485 ((unsigned char *)addr
-
486 bcm_static_buf
->buf_ptr
) / STATIC_BUF_SIZE
;
487 down(&bcm_static_buf
->static_sem
);
488 bcm_static_buf
->buf_use
[buf_idx
] = 0;
489 up(&bcm_static_buf
->static_sem
);
492 ASSERT(osh
->magic
== OS_HANDLE_MAGIC
);
493 osh
->malloced
-= size
;
498 #endif /* defined(BRCM_FULLMAC) && defined(DHD_USE_STATIC_BUF) */
500 ASSERT(osh
->magic
== OS_HANDLE_MAGIC
);
501 osh
->malloced
-= size
;
506 uint
osl_malloced(osl_t
*osh
)
508 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
509 return osh
->malloced
;
512 uint
osl_dma_consistent_align(void)
518 void *osl_dma_alloc_consistent(osl_t
*osh
, uint size
, unsigned long *pap
)
520 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
522 return pci_alloc_consistent(osh
->pdev
, size
, (dma_addr_t
*) pap
);
524 #else /* !BRCM_FULLMAC */
525 void *osl_dma_alloc_consistent(osl_t
*osh
, uint size
, u16 align_bits
,
526 uint
*alloced
, unsigned long *pap
)
528 u16 align
= (1 << align_bits
);
529 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
531 if (!ISALIGNED(DMA_CONSISTENT_ALIGN
, align
))
535 return pci_alloc_consistent(osh
->pdev
, size
, (dma_addr_t
*) pap
);
537 #endif /* BRCM_FULLMAC */
539 void osl_dma_free_consistent(osl_t
*osh
, void *va
, uint size
, unsigned long pa
)
541 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
543 pci_free_consistent(osh
->pdev
, size
, va
, (dma_addr_t
) pa
);
546 uint BCMFASTPATH
osl_dma_map(osl_t
*osh
, void *va
, uint size
, int direction
)
550 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
551 dir
= (direction
== DMA_TX
) ? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE
;
552 return pci_map_single(osh
->pdev
, va
, size
, dir
);
555 void BCMFASTPATH
osl_dma_unmap(osl_t
*osh
, uint pa
, uint size
, int direction
)
559 ASSERT((osh
&& (osh
->magic
== OS_HANDLE_MAGIC
)));
560 dir
= (direction
== DMA_TX
) ? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE
;
561 pci_unmap_single(osh
->pdev
, (uint32
) pa
, size
, dir
);
564 #if defined(BCMDBG_ASSERT)
565 void osl_assert(char *exp
, char *file
, int line
)
570 basename
= strrchr(file
, '/');
579 snprintf(tempbuf
, 256,
580 "assertion \"%s\" failed: file \"%s\", line %d\n", exp
,
583 /* Print assert message and give it time to be written to /var/log/messages */
584 if (!in_interrupt()) {
586 printk(KERN_ERR
"%s", tempbuf
);
587 printk(KERN_ERR
"panic in %d seconds\n", delay
);
588 set_current_state(TASK_INTERRUPTIBLE
);
589 schedule_timeout(delay
* HZ
);
592 switch (g_assert_type
) {
594 panic(KERN_ERR
"%s", tempbuf
);
597 printk(KERN_ERR
"%s", tempbuf
);
601 printk(KERN_ERR
"%s", tempbuf
);
606 #endif /* BCMDBG_ASSERT */
609 #endif /* defined(BCMDBG_ASSERT) */
611 void osl_delay(uint usec
)
622 #if defined(BCMSDIO) && !defined(BRCM_FULLMAC)
623 u8
osl_readb(osl_t
*osh
, volatile u8
*r
)
625 osl_rreg_fn_t rreg
= ((osl_pubinfo_t
*) osh
)->rreg_fn
;
626 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
628 return (u8
) ((rreg
) (ctx
, (void *)r
, sizeof(u8
)));
631 u16
osl_readw(osl_t
*osh
, volatile u16
*r
)
633 osl_rreg_fn_t rreg
= ((osl_pubinfo_t
*) osh
)->rreg_fn
;
634 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
636 return (u16
) ((rreg
) (ctx
, (void *)r
, sizeof(u16
)));
639 uint32
osl_readl(osl_t
*osh
, volatile uint32
*r
)
641 osl_rreg_fn_t rreg
= ((osl_pubinfo_t
*) osh
)->rreg_fn
;
642 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
644 return (uint32
) ((rreg
) (ctx
, (void *)r
, sizeof(uint32
)));
647 void osl_writeb(osl_t
*osh
, volatile u8
*r
, u8 v
)
649 osl_wreg_fn_t wreg
= ((osl_pubinfo_t
*) osh
)->wreg_fn
;
650 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
652 ((wreg
) (ctx
, (void *)r
, v
, sizeof(u8
)));
655 void osl_writew(osl_t
*osh
, volatile u16
*r
, u16 v
)
657 osl_wreg_fn_t wreg
= ((osl_pubinfo_t
*) osh
)->wreg_fn
;
658 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
660 ((wreg
) (ctx
, (void *)r
, v
, sizeof(u16
)));
663 void osl_writel(osl_t
*osh
, volatile uint32
*r
, uint32 v
)
665 osl_wreg_fn_t wreg
= ((osl_pubinfo_t
*) osh
)->wreg_fn
;
666 void *ctx
= ((osl_pubinfo_t
*) osh
)->reg_ctx
;
668 ((wreg
) (ctx
, (void *)r
, v
, sizeof(uint32
)));
This page took 0.046026 seconds and 5 git commands to generate.