summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/carl9170/fwdesc.h
blob: 921066822dd5a77529b9834fd958b1d7c7da3dbc (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
/*
 * Shared CARL9170 Header
 *
 * Firmware descriptor format
 *
 * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, see
 * http://www.gnu.org/licenses/.
 */

#ifndef __CARL9170_SHARED_FWDESC_H
#define __CARL9170_SHARED_FWDESC_H

/* NOTE: Don't mess with the order of the flags! */
enum carl9170fw_feature_list {
	/* Always set */
	CARL9170FW_DUMMY_FEATURE,

	/*
	 * Indicates that this image has special boot block which prevents
	 * legacy drivers to drive the firmware.
	 */
	CARL9170FW_MINIBOOT,

	/* usb registers are initialized by the firmware */
	CARL9170FW_USB_INIT_FIRMWARE,

	/* command traps & notifications are send through EP2 */
	CARL9170FW_USB_RESP_EP2,

	/* usb download (app -> fw) stream */
	CARL9170FW_USB_DOWN_STREAM,

	/* usb upload (fw -> app) stream */
	CARL9170FW_USB_UP_STREAM,

	/* unusable - reserved to flag non-functional debug firmwares */
	CARL9170FW_UNUSABLE,

	/* AR9170_CMD_RF_INIT, AR9170_CMD_FREQ_START, AR9170_CMD_FREQUENCY */
	CARL9170FW_COMMAND_PHY,

	/* AR9170_CMD_EKEY, AR9170_CMD_DKEY */
	CARL9170FW_COMMAND_CAM,

	/* Firmware has a software Content After Beacon Queueing mechanism */
	CARL9170FW_WLANTX_CAB,

	/* The firmware is capable of responding to incoming BAR frames */
	CARL9170FW_HANDLE_BACK_REQ,

	/* GPIO Interrupt | CARL9170_RSP_GPIO */
	CARL9170FW_GPIO_INTERRUPT,

	/* Firmware PSM support | CARL9170_CMD_PSM */
	CARL9170FW_PSM,

	/* Firmware RX filter | CARL9170_CMD_RX_FILTER */
	CARL9170FW_RX_FILTER,

	/* Wake up on WLAN */
	CARL9170FW_WOL,

	/* KEEP LAST */
	__CARL9170FW_FEATURE_NUM
};

#define OTUS_MAGIC	"OTAR"
#define MOTD_MAGIC	"MOTD"
#define FIX_MAGIC	"FIX\0"
#define DBG_MAGIC	"DBG\0"
#define CHK_MAGIC	"CHK\0"
#define TXSQ_MAGIC	"TXSQ"
#define LAST_MAGIC	"LAST"

#define CARL9170FW_SET_DAY(d) (((d) - 1) % 31)
#define CARL9170FW_SET_MONTH(m) ((((m) - 1) % 12) * 31)
#define CARL9170FW_SET_YEAR(y) (((y) - 10) * 372)

#define CARL9170FW_GET_DAY(d) (((d) % 31) + 1)
#define CARL9170FW_GET_MONTH(m) ((((m) / 31) % 12) + 1)
#define CARL9170FW_GET_YEAR(y) ((y) / 372 + 10)

#define CARL9170FW_MAGIC_SIZE			4

struct carl9170fw_desc_head {
	u8	magic[CARL9170FW_MAGIC_SIZE];
	__le16 length;
	u8 min_ver;
	u8 cur_ver;
} __packed;
#define CARL9170FW_DESC_HEAD_SIZE			\
	(sizeof(struct carl9170fw_desc_head))

#define CARL9170FW_OTUS_DESC_MIN_VER		6
#define CARL9170FW_OTUS_DESC_CUR_VER		6
struct carl9170fw_otus_desc {
	struct carl9170fw_desc_head head;
	__le32 feature_set;
	__le32 fw_address;
	__le32 bcn_addr;
	__le16 bcn_len;
	__le16 miniboot_size;
	__le16 tx_frag_len;
	__le16 rx_max_frame_len;
	u8 tx_descs;
	u8 cmd_bufs;
	u8 api_ver;
	u8 vif_num;
} __packed;
#define CARL9170FW_OTUS_DESC_SIZE			\
	(sizeof(struct carl9170fw_otus_desc))

#define CARL9170FW_MOTD_STRING_LEN			24
#define CARL9170FW_MOTD_RELEASE_LEN			20
#define CARL9170FW_MOTD_DESC_MIN_VER			1
#define CARL9170FW_MOTD_DESC_CUR_VER			2
struct carl9170fw_motd_desc {
	struct carl9170fw_desc_head head;
	__le32 fw_year_month_day;
	char desc[CARL9170FW_MOTD_STRING_LEN];
	char release[CARL9170FW_MOTD_RELEASE_LEN];
} __packed;
#define CARL9170FW_MOTD_DESC_SIZE			\
	(sizeof(struct carl9170fw_motd_desc))

#define CARL9170FW_FIX_DESC_MIN_VER			1
#define CARL9170FW_FIX_DESC_CUR_VER			2
struct carl9170fw_fix_entry {
	__le32 address;
	__le32 mask;
	__le32 value;
} __packed;

struct carl9170fw_fix_desc {
	struct carl9170fw_desc_head head;
	struct carl9170fw_fix_entry data[0];
} __packed;
#define CARL9170FW_FIX_DESC_SIZE			\
	(sizeof(struct carl9170fw_fix_desc))

#define CARL9170FW_DBG_DESC_MIN_VER			1
#define CARL9170FW_DBG_DESC_CUR_VER			3
struct carl9170fw_dbg_desc {
	struct carl9170fw_desc_head head;

	__le32 bogoclock_addr;
	__le32 counter_addr;
	__le32 rx_total_addr;
	__le32 rx_overrun_addr;
	__le32 rx_filter;

	/* Put your debugging definitions here */
} __packed;
#define CARL9170FW_DBG_DESC_SIZE			\
	(sizeof(struct carl9170fw_dbg_desc))

#define CARL9170FW_CHK_DESC_MIN_VER			1
#define CARL9170FW_CHK_DESC_CUR_VER			2
struct carl9170fw_chk_desc {
	struct carl9170fw_desc_head head;
	__le32 fw_crc32;
	__le32 hdr_crc32;
} __packed;
#define CARL9170FW_CHK_DESC_SIZE			\
	(sizeof(struct carl9170fw_chk_desc))

#define CARL9170FW_TXSQ_DESC_MIN_VER			1
#define CARL9170FW_TXSQ_DESC_CUR_VER			1
struct carl9170fw_txsq_desc {
	struct carl9170fw_desc_head head;

	__le32 seq_table_addr;
} __packed;
#define CARL9170FW_TXSQ_DESC_SIZE			\
	(sizeof(struct carl9170fw_txsq_desc))

#define CARL9170FW_LAST_DESC_MIN_VER			1
#define CARL9170FW_LAST_DESC_CUR_VER			2
struct carl9170fw_last_desc {
	struct carl9170fw_desc_head head;
} __packed;
#define CARL9170FW_LAST_DESC_SIZE			\
	(sizeof(struct carl9170fw_fix_desc))

#define CARL9170FW_DESC_MAX_LENGTH			8192

#define CARL9170FW_FILL_DESC(_magic, _length, _min_ver, _cur_ver)	\
	.head = {							\
		.magic = _magic,					\
		.length = cpu_to_le16(_length),				\
		.min_ver = _min_ver,					\
		.cur_ver = _cur_ver,					\
	}

static inline void carl9170fw_fill_desc(struct carl9170fw_desc_head *head,
					 u8 magic[CARL9170FW_MAGIC_SIZE],
					 __le16 length, u8 min_ver, u8 cur_ver)
{
	head->magic[0] = magic[0];
	head->magic[1] = magic[1];
	head->magic[2] = magic[2];
	head->magic[3] = magic[3];

	head->length = length;
	head->min_ver = min_ver;
	head->cur_ver = cur_ver;
}

#define carl9170fw_for_each_hdr(desc, fw_desc)				\
	for (desc = fw_desc;						\
	     memcmp(desc->magic, LAST_MAGIC, CARL9170FW_MAGIC_SIZE) &&	\
	     le16_to_cpu(desc->length) >= CARL9170FW_DESC_HEAD_SIZE &&	\
	     le16_to_cpu(desc->length) < CARL9170FW_DESC_MAX_LENGTH;	\
	     desc = (void *)((unsigned long)desc + le16_to_cpu(desc->length)))

#define CHECK_HDR_VERSION(head, _min_ver)				\
	(((head)->cur_ver < _min_ver) || ((head)->min_ver > _min_ver))	\

static inline bool carl9170fw_supports(__le32 list, u8 feature)
{
	return le32_to_cpu(list) & BIT(feature);
}

static inline bool carl9170fw_desc_cmp(const struct carl9170fw_desc_head *head,
				       const u8 descid[CARL9170FW_MAGIC_SIZE],
				       u16 min_len, u8 compatible_revision)
{
	if (descid[0] == head->magic[0] && descid[1] == head->magic[1] &&
	    descid[2] == head->magic[2] && descid[3] == head->magic[3] &&
	    !CHECK_HDR_VERSION(head, compatible_revision) &&
	    (le16_to_cpu(head->length) >= min_len))
		return true;

	return false;
}

#define CARL9170FW_MIN_SIZE	32
#define CARL9170FW_MAX_SIZE	16384

static inline bool carl9170fw_size_check(unsigned int len)
{
	return (len <= CARL9170FW_MAX_SIZE && len >= CARL9170FW_MIN_SIZE);
}

#endif /* __CARL9170_SHARED_FWDESC_H */