summaryrefslogtreecommitdiffstats
path: root/target/linux/generic-2.6/files/crypto/ocf/ocf-compat.h
blob: 212f971239de0ddd4c003e0ec9c29085e1cebc0e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
#ifndef _BSD_COMPAT_H_
#define _BSD_COMPAT_H_ 1
/****************************************************************************/
/*
 * Provide compat routines for older linux kernels and BSD kernels
 *
 * Written by David McCullough <david_mccullough@mcafee.com>
 * Copyright (C) 2010 David McCullough <david_mccullough@mcafee.com>
 *
 * LICENSE TERMS
 *
 * The free distribution and use of this software in both source and binary
 * form is allowed (with or without changes) provided that:
 *
 *   1. distributions of this source code include the above copyright
 *      notice, this list of conditions and the following disclaimer;
 *
 *   2. distributions in binary form include the above copyright
 *      notice, this list of conditions and the following disclaimer
 *      in the documentation and/or other associated materials;
 *
 *   3. the copyright holder's name is not used to endorse products
 *      built using this software without specific written permission.
 *
 * ALTERNATIVELY, provided that this notice is retained in full, this file
 * may be distributed under the terms of the GNU General Public License (GPL),
 * in which case the provisions of the GPL apply INSTEAD OF those given above.
 *
 * DISCLAIMER
 *
 * This software is provided 'as is' with no explicit or implied warranties
 * in respect of its properties, including, but not limited to, correctness
 * and/or fitness for purpose.
 */
/****************************************************************************/
#ifdef __KERNEL__
/*
 * fake some BSD driver interface stuff specifically for OCF use
 */

typedef struct ocf_device *device_t;

typedef struct {
	int (*cryptodev_newsession)(device_t dev, u_int32_t *sidp, struct cryptoini *cri);
	int (*cryptodev_freesession)(device_t dev, u_int64_t tid);
	int (*cryptodev_process)(device_t dev, struct cryptop *crp, int hint);
	int (*cryptodev_kprocess)(device_t dev, struct cryptkop *krp, int hint);
} device_method_t;
#define DEVMETHOD(id, func)	id: func

struct ocf_device {
	char name[32];		/* the driver name */
	char nameunit[32];	/* the driver name + HW instance */
	int  unit;
	device_method_t	methods;
	void *softc;
};

#define CRYPTODEV_NEWSESSION(dev, sid, cri) \
	((*(dev)->methods.cryptodev_newsession)(dev,sid,cri))
#define CRYPTODEV_FREESESSION(dev, sid) \
	((*(dev)->methods.cryptodev_freesession)(dev, sid))
#define CRYPTODEV_PROCESS(dev, crp, hint) \
	((*(dev)->methods.cryptodev_process)(dev, crp, hint))
#define CRYPTODEV_KPROCESS(dev, krp, hint) \
	((*(dev)->methods.cryptodev_kprocess)(dev, krp, hint))

#define device_get_name(dev)	((dev)->name)
#define device_get_nameunit(dev)	((dev)->nameunit)
#define device_get_unit(dev)	((dev)->unit)
#define device_get_softc(dev)	((dev)->softc)

#define	softc_device_decl \
		struct ocf_device _device; \
		device_t

#define	softc_device_init(_sc, _name, _unit, _methods) \
	if (1) {\
	strncpy((_sc)->_device.name, _name, sizeof((_sc)->_device.name) - 1); \
	snprintf((_sc)->_device.nameunit, sizeof((_sc)->_device.name), "%s%d", _name, _unit); \
	(_sc)->_device.unit = _unit; \
	(_sc)->_device.methods = _methods; \
	(_sc)->_device.softc = (void *) _sc; \
	*(device_t *)((softc_get_device(_sc))+1) = &(_sc)->_device; \
	} else

#define	softc_get_device(_sc)	(&(_sc)->_device)

/*
 * iomem support for 2.4 and 2.6 kernels
 */
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define ocf_iomem_t	unsigned long

/*
 * implement simple workqueue like support for older kernels
 */

#include <linux/tqueue.h>

#define work_struct tq_struct

#define INIT_WORK(wp, fp, ap) \
	do { \
		(wp)->sync = 0; \
		(wp)->routine = (fp); \
		(wp)->data = (ap); \
	} while (0)

#define schedule_work(wp) \
	do { \
		queue_task((wp), &tq_immediate); \
		mark_bh(IMMEDIATE_BH); \
	} while (0)

#define flush_scheduled_work()	run_task_queue(&tq_immediate)

#else
#define ocf_iomem_t	void __iomem *

#include <linux/workqueue.h>

#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
#include <linux/fdtable.h>
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
#define files_fdtable(files)	(files)
#endif

#ifdef MODULE_PARM
#undef module_param	/* just in case */
#define	module_param(a,b,c)		MODULE_PARM(a,"i")
#endif

#define bzero(s,l)		memset(s,0,l)
#define bcopy(s,d,l)	memcpy(d,s,l)
#define bcmp(x, y, l)	memcmp(x,y,l)

#define MIN(x,y)	((x) < (y) ? (x) : (y))

#define device_printf(dev, a...) ({ \
				printk("%s: ", device_get_nameunit(dev)); printk(a); \
			})

#undef printf
#define printf(fmt...)	printk(fmt)

#define KASSERT(c,p)	if (!(c)) { printk p ; } else

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define ocf_daemonize(str) \
	daemonize(); \
	spin_lock_irq(&current->sigmask_lock); \
	sigemptyset(&current->blocked); \
	recalc_sigpending(current); \
	spin_unlock_irq(&current->sigmask_lock); \
	sprintf(current->comm, str);
#else
#define ocf_daemonize(str) daemonize(str);
#endif

#define	TAILQ_INSERT_TAIL(q,d,m) list_add_tail(&(d)->m, (q))
#define	TAILQ_EMPTY(q)	list_empty(q)
#define	TAILQ_FOREACH(v, q, m) list_for_each_entry(v, q, m)

#define read_random(p,l) get_random_bytes(p,l)

#define DELAY(x)	((x) > 2000 ? mdelay((x)/1000) : udelay(x))
#define strtoul simple_strtoul

#define pci_get_vendor(dev)	((dev)->vendor)
#define pci_get_device(dev)	((dev)->device)

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define pci_set_consistent_dma_mask(dev, mask) (0)
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
#define pci_dma_sync_single_for_cpu pci_dma_sync_single
#endif

#ifndef DMA_32BIT_MASK
#define DMA_32BIT_MASK  0x00000000ffffffffULL
#endif

#ifndef htole32
#define htole32(x)	cpu_to_le32(x)
#endif
#ifndef htobe32
#define htobe32(x)	cpu_to_be32(x)
#endif
#ifndef htole16
#define htole16(x)	cpu_to_le16(x)
#endif
#ifndef htobe16
#define htobe16(x)	cpu_to_be16(x)
#endif

/* older kernels don't have these */

#include <asm/irq.h>
#if !defined(IRQ_NONE) && !defined(IRQ_RETVAL)
#define IRQ_NONE
#define IRQ_HANDLED
#define IRQ_WAKE_THREAD
#define IRQ_RETVAL
#define irqreturn_t void
typedef irqreturn_t (*irq_handler_t)(int irq, void *arg, struct pt_regs *regs);
#endif
#ifndef IRQF_SHARED
#define IRQF_SHARED	SA_SHIRQ
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
# define strlcpy(dest,src,len) \
		({strncpy(dest,src,(len)-1); ((char *)dest)[(len)-1] = '\0'; })
#endif

#ifndef MAX_ERRNO
#define MAX_ERRNO	4095
#endif
#ifndef IS_ERR_VALUE
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,5)
#include <linux/err.h>
#endif
#ifndef IS_ERR_VALUE
#define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
#endif
#endif

/*
 * common debug for all
 */
#if 1
#define dprintk(a...)	do { if (debug) printk(a); } while(0)
#else
#define dprintk(a...)
#endif

#ifndef SLAB_ATOMIC
/* Changed in 2.6.20, must use GFP_ATOMIC now */
#define	SLAB_ATOMIC	GFP_ATOMIC
#endif

/*
 * need some additional support for older kernels */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,2)
#define pci_register_driver_compat(driver, rc) \
	do { \
		if ((rc) > 0) { \
			(rc) = 0; \
		} else if (rc == 0) { \
			(rc) = -ENODEV; \
		} else { \
			pci_unregister_driver(driver); \
		} \
	} while (0)
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
#define pci_register_driver_compat(driver,rc) ((rc) = (rc) < 0 ? (rc) : 0)
#else
#define pci_register_driver_compat(driver,rc)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)

#include <linux/mm.h>
#include <asm/scatterlist.h>

static inline void sg_set_page(struct scatterlist *sg,  struct page *page,
			       unsigned int len, unsigned int offset)
{
	sg->page = page;
	sg->offset = offset;
	sg->length = len;
}

static inline void *sg_virt(struct scatterlist *sg)
{
	return page_address(sg->page) + sg->offset;
}

#define sg_init_table(sg, n)

#endif

#ifndef late_initcall
#define late_initcall(init) module_init(init)
#endif

#endif /* __KERNEL__ */

/****************************************************************************/
#endif /* _BSD_COMPAT_H_ */