1 #ifndef _INC_SBECOM_INLNX_H_
2 #define _INC_SBECOM_INLNX_H_
3
4 /*-----------------------------------------------------------------------------
5 * sbecom_inline_linux.h - SBE common Linux inlined routines
6 *
7 * Copyright (C) 2007 One Stop Systems, Inc.
8 * Copyright (C) 2005 SBE, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * For further information, contact via email: support@onestopsystems.com
21 * One Stop Systems, Inc. Escondido, California U.S.A.
22 *-----------------------------------------------------------------------------
23 */
24
25
26 #include <linux/types.h>
27 #include <linux/module.h>
28 #include <linux/kernel.h> /* resolves kmalloc references */
29 #include <linux/skbuff.h> /* resolves skb references */
30 #include <linux/netdevice.h> /* resolves dev_kree_skb_any */
31 #include <asm/byteorder.h> /* resolves cpu_to_le32 */
32
33 /* forward reference */
34 u_int32_t pci_read_32 (u_int32_t *p);
35 void pci_write_32 (u_int32_t *p, u_int32_t v);
36
37
38 /*
39 * system dependent callbacks
40 */
41
42 /**********/
43 /* malloc */
44 /**********/
45
46 static inline void *
OS_kmalloc(size_t size)47 OS_kmalloc (size_t size)
48 {
49 char *ptr = kmalloc (size, GFP_KERNEL | GFP_DMA);
50
51 if (ptr)
52 memset (ptr, 0, size);
53 return ptr;
54 }
55
56 static inline void
OS_kfree(void * x)57 OS_kfree (void *x)
58 {
59 kfree (x);
60 }
61
62
63 /****************/
64 /* memory token */
65 /****************/
66
67 static inline void *
OS_mem_token_alloc(size_t size)68 OS_mem_token_alloc (size_t size)
69 {
70 struct sk_buff *skb;
71
72 skb = dev_alloc_skb (size);
73 if (!skb)
74 {
75 //pr_warning("no mem in OS_mem_token_alloc !\n");
76 return 0;
77 }
78 return skb;
79 }
80
81
82 static inline void
OS_mem_token_free(void * token)83 OS_mem_token_free (void *token)
84 {
85 dev_kfree_skb_any (token);
86 }
87
88
89 static inline void
OS_mem_token_free_irq(void * token)90 OS_mem_token_free_irq (void *token)
91 {
92 dev_kfree_skb_irq (token);
93 }
94
95
96 static inline void *
OS_mem_token_data(void * token)97 OS_mem_token_data (void *token)
98 {
99 return ((struct sk_buff *) token)->data;
100 }
101
102
103 static inline void *
OS_mem_token_next(void * token)104 OS_mem_token_next (void *token)
105 {
106 return 0;
107 }
108
109
110 static inline int
OS_mem_token_len(void * token)111 OS_mem_token_len (void *token)
112 {
113 return ((struct sk_buff *) token)->len;
114 }
115
116
117 static inline int
OS_mem_token_tlen(void * token)118 OS_mem_token_tlen (void *token)
119 {
120 return ((struct sk_buff *) token)->len;
121 }
122
123
124 /***************************************/
125 /* virtual to physical addr conversion */
126 /***************************************/
127
128 static inline u_long
OS_phystov(void * addr)129 OS_phystov (void *addr)
130 {
131 return (u_long) __va (addr);
132 }
133
134
135 static inline u_long
OS_vtophys(void * addr)136 OS_vtophys (void *addr)
137 {
138 return __pa (addr);
139 }
140
141
142 /**********/
143 /* semops */
144 /**********/
145
146 void OS_sem_init (void *, int);
147
148
149 static inline void
OS_sem_free(void * sem)150 OS_sem_free (void *sem)
151 {
152 /*
153 * NOOP - since semaphores structures predeclared w/in structures, no
154 * longer malloc'd
155 */
156 }
157
158 #define SD_SEM_TAKE(sem,desc) down(sem)
159 #define SD_SEM_GIVE(sem) up(sem)
160 #define SEM_AVAILABLE 1
161 #define SEM_TAKEN 0
162
163
164 /**********************/
165 /* watchdog functions */
166 /**********************/
167
168 struct watchdog
169 {
170 struct timer_list h;
171 struct work_struct work;
172 void *softc;
173 void (*func) (void *softc);
174 int ticks;
175 int init_tq;
176 };
177
178
179 static inline int
OS_start_watchdog(struct watchdog * wd)180 OS_start_watchdog (struct watchdog * wd)
181 {
182 wd->h.expires = jiffies + wd->ticks;
183 add_timer (&wd->h);
184 return 0;
185 }
186
187
188 static inline int
OS_stop_watchdog(struct watchdog * wd)189 OS_stop_watchdog (struct watchdog * wd)
190 {
191 del_timer_sync (&wd->h);
192 return 0;
193 }
194
195
196 static inline int
OS_free_watchdog(struct watchdog * wd)197 OS_free_watchdog (struct watchdog * wd)
198 {
199 OS_stop_watchdog (wd);
200 OS_kfree (wd);
201 return 0;
202 }
203
204
205 /* sleep in microseconds */
206 void OS_uwait (int usec, char *description);
207 void OS_uwait_dummy (void);
208
209
210 /* watchdog functions */
211 int OS_init_watchdog(struct watchdog *wdp, void (*f) (void *), void *ci, int usec);
212
213
214 #endif /*** _INC_SBECOM_INLNX_H_ ***/
215