1 //------------------------------------------------------------------------------
2 // This file contains the definitions of the basic atheros data types.
3 // It is used to map the data types in atheros files to a platform specific
5 // Copyright (c) 2004-2010 Atheros Communications Inc.
6 // All rights reserved.
10 // Permission to use, copy, modify, and/or distribute this software for any
11 // purpose with or without fee is hereby granted, provided that the above
12 // copyright notice and this permission notice appear in all copies.
14 // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15 // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17 // ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 // ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 // Author(s): ="Atheros"
25 //------------------------------------------------------------------------------
27 #ifndef _OSAPI_LINUX_H_
28 #define _OSAPI_LINUX_H_
32 #include <linux/version.h>
33 #include <linux/types.h>
34 #include <linux/kernel.h>
35 #include <linux/string.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/jiffies.h>
39 #include <linux/timer.h>
40 #include <linux/delay.h>
41 #include <linux/wait.h>
42 #include <linux/semaphore.h>
43 #include <linux/cache.h>
46 #define __ATTRIB_PACK __attribute__ ((packed))
47 #define __ATTRIB_PRINTF __attribute__ ((format (printf, 1, 2)))
48 #define __ATTRIB_NORETURN __attribute__ ((noreturn))
50 #define INLINE __inline__
54 #define __ATTRIB_PRINTF
55 #define __ATTRIB_NORETURN
57 #define INLINE __inline
59 #endif /* End __GNUC__ */
62 #define POSTPACK __ATTRIB_PACK
67 #define A_BE2CPU8(x) ntohb(x)
68 #define A_BE2CPU16(x) ntohs(x)
69 #define A_BE2CPU32(x) ntohl(x)
71 #define A_LE2CPU8(x) (x)
72 #define A_LE2CPU16(x) (x)
73 #define A_LE2CPU32(x) (x)
75 #define A_CPU2BE8(x) htonb(x)
76 #define A_CPU2BE16(x) htons(x)
77 #define A_CPU2BE32(x) htonl(x)
79 #define A_MEMZERO(addr, len) memset(addr, 0, len)
80 #define A_MALLOC(size) kmalloc((size), GFP_KERNEL)
81 #define A_MALLOC_NOWAIT(size) kmalloc((size), GFP_ATOMIC)
83 #define A_LOGGER(mask, mod, args...) printk(KERN_ALERT args)
84 #define A_PRINTF(args...) printk(KERN_ALERT args)
86 #define A_PRINTF_LOG(args...) printk(args)
87 #define A_SPRINTF(buf, args...) sprintf (buf, args)
89 /* Mutual Exclusion */
90 typedef spinlock_t A_MUTEX_T;
91 #define A_MUTEX_INIT(mutex) spin_lock_init(mutex)
92 #define A_MUTEX_LOCK(mutex) spin_lock_bh(mutex)
93 #define A_MUTEX_UNLOCK(mutex) spin_unlock_bh(mutex)
94 #define A_IS_MUTEX_VALID(mutex) true /* okay to return true, since A_MUTEX_DELETE does nothing */
95 #define A_MUTEX_DELETE(mutex) /* spin locks are not kernel resources so nothing to free.. */
97 /* Get current time in ms adding a constant offset (in ms) */
98 #define A_GET_MS(offset) \
99 (((jiffies / HZ) * 1000) + (offset))
104 #define A_MDELAY(msecs) mdelay(msecs)
105 typedef struct timer_list A_TIMER;
107 #define A_INIT_TIMER(pTimer, pFunction, pArg) do { \
108 init_timer(pTimer); \
109 (pTimer)->function = (pFunction); \
110 (pTimer)->data = (unsigned long)(pArg); \
114 * Start a Timer that elapses after 'periodMSec' milli-seconds
115 * Support is provided for a one-shot timer. The 'repeatFlag' is
118 #define A_TIMEOUT_MS(pTimer, periodMSec, repeatFlag) do { \
120 printk("\n" __FILE__ ":%d: Timer Repeat requested\n",__LINE__); \
121 panic("Timer Repeat"); \
123 mod_timer((pTimer), jiffies + HZ * (periodMSec) / 1000); \
129 #define A_UNTIMEOUT(pTimer) do { \
130 del_timer((pTimer)); \
133 #define A_DELETE_TIMER(pTimer) do { \
137 * Wait Queue related functions
139 typedef wait_queue_head_t A_WAITQUEUE_HEAD;
140 #define A_INIT_WAITQUEUE_HEAD(head) init_waitqueue_head(head)
141 #ifndef wait_event_interruptible_timeout
142 #define __wait_event_interruptible_timeout(wq, condition, ret) \
144 wait_queue_t __wait; \
145 init_waitqueue_entry(&__wait, current); \
147 add_wait_queue(&wq, &__wait); \
149 set_current_state(TASK_INTERRUPTIBLE); \
152 if (!signal_pending(current)) { \
153 ret = schedule_timeout(ret); \
158 ret = -ERESTARTSYS; \
161 current->state = TASK_RUNNING; \
162 remove_wait_queue(&wq, &__wait); \
165 #define wait_event_interruptible_timeout(wq, condition, timeout) \
167 long __ret = timeout; \
169 __wait_event_interruptible_timeout(wq, condition, __ret); \
172 #endif /* wait_event_interruptible_timeout */
174 #define A_WAIT_EVENT_INTERRUPTIBLE_TIMEOUT(head, condition, timeout) do { \
175 wait_event_interruptible_timeout(head, condition, timeout); \
178 #define A_WAKE_UP(head) wake_up(head)
181 extern unsigned int panic_on_assert;
182 #define A_ASSERT(expr) \
184 printk(KERN_ALERT"Debug Assert Caught, File %s, Line: %d, Test:%s \n",__FILE__, __LINE__,#expr); \
185 if (panic_on_assert) panic(#expr); \
188 #define A_ASSERT(expr)
191 #define A_REQUEST_FIRMWARE(_ppf, _pfile, _dev) request_firmware(_ppf, _pfile, _dev)
192 #define A_RELEASE_FIRMWARE(_pf) release_firmware(_pf)
195 * Initialization of the network buffer subsystem
197 #define A_NETBUF_INIT()
200 * Network buffer queue support
202 typedef struct sk_buff_head A_NETBUF_QUEUE_T;
204 #define A_NETBUF_QUEUE_INIT(q) \
205 a_netbuf_queue_init(q)
207 #define A_NETBUF_ENQUEUE(q, pkt) \
208 a_netbuf_enqueue((q), (pkt))
209 #define A_NETBUF_PREQUEUE(q, pkt) \
210 a_netbuf_prequeue((q), (pkt))
211 #define A_NETBUF_DEQUEUE(q) \
212 (a_netbuf_dequeue(q))
213 #define A_NETBUF_QUEUE_SIZE(q) \
214 a_netbuf_queue_size(q)
215 #define A_NETBUF_QUEUE_EMPTY(q) \
216 (a_netbuf_queue_empty(q) ? true : false)
219 * Network buffer support
221 #define A_NETBUF_ALLOC(size) \
223 #define A_NETBUF_ALLOC_RAW(size) \
224 a_netbuf_alloc_raw(size)
225 #define A_NETBUF_FREE(bufPtr) \
226 a_netbuf_free(bufPtr)
227 #define A_NETBUF_DATA(bufPtr) \
228 a_netbuf_to_data(bufPtr)
229 #define A_NETBUF_LEN(bufPtr) \
230 a_netbuf_to_len(bufPtr)
231 #define A_NETBUF_PUSH(bufPtr, len) \
232 a_netbuf_push(bufPtr, len)
233 #define A_NETBUF_PUT(bufPtr, len) \
234 a_netbuf_put(bufPtr, len)
235 #define A_NETBUF_TRIM(bufPtr,len) \
236 a_netbuf_trim(bufPtr, len)
237 #define A_NETBUF_PULL(bufPtr, len) \
238 a_netbuf_pull(bufPtr, len)
239 #define A_NETBUF_HEADROOM(bufPtr)\
240 a_netbuf_headroom(bufPtr)
241 #define A_NETBUF_SETLEN(bufPtr,len) \
242 a_netbuf_setlen(bufPtr, len)
244 /* Add data to end of a buffer */
245 #define A_NETBUF_PUT_DATA(bufPtr, srcPtr, len) \
246 a_netbuf_put_data(bufPtr, srcPtr, len)
248 /* Add data to start of the buffer */
249 #define A_NETBUF_PUSH_DATA(bufPtr, srcPtr, len) \
250 a_netbuf_push_data(bufPtr, srcPtr, len)
252 /* Remove data at start of the buffer */
253 #define A_NETBUF_PULL_DATA(bufPtr, dstPtr, len) \
254 a_netbuf_pull_data(bufPtr, dstPtr, len)
256 /* Remove data from the end of the buffer */
257 #define A_NETBUF_TRIM_DATA(bufPtr, dstPtr, len) \
258 a_netbuf_trim_data(bufPtr, dstPtr, len)
260 /* View data as "size" contiguous bytes of type "t" */
261 #define A_NETBUF_VIEW_DATA(bufPtr, t, size) \
262 (t )( ((struct skbuf *)(bufPtr))->data)
264 /* return the beginning of the headroom for the buffer */
265 #define A_NETBUF_HEAD(bufPtr) \
266 ((((struct sk_buff *)(bufPtr))->head))
269 * OS specific network buffer access routines
271 void *a_netbuf_alloc(int size);
272 void *a_netbuf_alloc_raw(int size);
273 void a_netbuf_free(void *bufPtr);
274 void *a_netbuf_to_data(void *bufPtr);
275 u32 a_netbuf_to_len(void *bufPtr);
276 int a_netbuf_push(void *bufPtr, s32 len);
277 int a_netbuf_push_data(void *bufPtr, char *srcPtr, s32 len);
278 int a_netbuf_put(void *bufPtr, s32 len);
279 int a_netbuf_put_data(void *bufPtr, char *srcPtr, s32 len);
280 int a_netbuf_pull(void *bufPtr, s32 len);
281 int a_netbuf_pull_data(void *bufPtr, char *dstPtr, s32 len);
282 int a_netbuf_trim(void *bufPtr, s32 len);
283 int a_netbuf_trim_data(void *bufPtr, char *dstPtr, s32 len);
284 int a_netbuf_setlen(void *bufPtr, s32 len);
285 s32 a_netbuf_headroom(void *bufPtr);
286 void a_netbuf_enqueue(A_NETBUF_QUEUE_T *q, void *pkt);
287 void a_netbuf_prequeue(A_NETBUF_QUEUE_T *q, void *pkt);
288 void *a_netbuf_dequeue(A_NETBUF_QUEUE_T *q);
289 int a_netbuf_queue_size(A_NETBUF_QUEUE_T *q);
290 int a_netbuf_queue_empty(A_NETBUF_QUEUE_T *q);
291 int a_netbuf_queue_empty(A_NETBUF_QUEUE_T *q);
292 void a_netbuf_queue_init(A_NETBUF_QUEUE_T *q);
295 * Kernel v.s User space functions
297 u32 a_copy_to_user(void *to, const void *from, u32 n);
298 u32 a_copy_from_user(void *to, const void *from, u32 n);
300 /* In linux, WLAN Rx and Tx run in different contexts, so no need to check
301 * for any commands/data queued for WLAN */
302 #define A_CHECK_DRV_TX()
304 #define A_GET_CACHE_LINE_BYTES() L1_CACHE_BYTES
306 #define A_CACHE_LINE_PAD 128
308 static inline void *A_ALIGN_TO_CACHE_LINE(void *ptr) {
309 return (void *)L1_CACHE_ALIGN((unsigned long)ptr);
312 #else /* __KERNEL__ */
315 #define __ATTRIB_PACK __attribute__ ((packed))
316 #define __ATTRIB_PRINTF __attribute__ ((format (printf, 1, 2)))
317 #define __ATTRIB_NORETURN __attribute__ ((noreturn))
319 #define INLINE __inline__
322 #define __ATTRIB_PACK
323 #define __ATTRIB_PRINTF
324 #define __ATTRIB_NORETURN
326 #define INLINE __inline
328 #endif /* End __GNUC__ */
331 #define POSTPACK __ATTRIB_PACK
333 #define A_MEMZERO(addr, len) memset((addr), 0, (len))
334 #define A_MALLOC(size) malloc(size)
338 #endif /* __KERNEL__ */
340 #endif /* _OSAPI_LINUX_H_ */