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
|
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _BMI_H_
#define _BMI_H_
#include "core.h"
/*
* Bootloader Messaging Interface (BMI)
*
* BMI is a very simple messaging interface used during initialization
* to read memory, write memory, execute code, and to define an
* application entry PC.
*
* It is used to download an application to QCA988x, to provide
* patches to code that is already resident on QCA988x, and generally
* to examine and modify state. The Host has an opportunity to use
* BMI only once during bootup. Once the Host issues a BMI_DONE
* command, this opportunity ends.
*
* The Host writes BMI requests to mailbox0, and reads BMI responses
* from mailbox0. BMI requests all begin with a command
* (see below for specific commands), and are followed by
* command-specific data.
*
* Flow control:
* The Host can only issue a command once the Target gives it a
* "BMI Command Credit", using AR8K Counter #4. As soon as the
* Target has completed a command, it issues another BMI Command
* Credit (so the Host can issue the next command).
*
* BMI handles all required Target-side cache flushing.
*/
/* Maximum data size used for BMI transfers */
#define BMI_MAX_DATA_SIZE 256
/* len = cmd + addr + length */
#define BMI_MAX_CMDBUF_SIZE (BMI_MAX_DATA_SIZE + \
sizeof(u32) + \
sizeof(u32) + \
sizeof(u32))
/* BMI Commands */
enum bmi_cmd_id {
BMI_NO_COMMAND = 0,
BMI_DONE = 1,
BMI_READ_MEMORY = 2,
BMI_WRITE_MEMORY = 3,
BMI_EXECUTE = 4,
BMI_SET_APP_START = 5,
BMI_READ_SOC_REGISTER = 6,
BMI_READ_SOC_WORD = 6,
BMI_WRITE_SOC_REGISTER = 7,
BMI_WRITE_SOC_WORD = 7,
BMI_GET_TARGET_ID = 8,
BMI_GET_TARGET_INFO = 8,
BMI_ROMPATCH_INSTALL = 9,
BMI_ROMPATCH_UNINSTALL = 10,
BMI_ROMPATCH_ACTIVATE = 11,
BMI_ROMPATCH_DEACTIVATE = 12,
BMI_LZ_STREAM_START = 13, /* should be followed by LZ_DATA */
BMI_LZ_DATA = 14,
BMI_NVRAM_PROCESS = 15,
};
#define BMI_NVRAM_SEG_NAME_SZ 16
struct bmi_cmd {
__le32 id; /* enum bmi_cmd_id */
union {
struct {
} done;
struct {
__le32 addr;
__le32 len;
} read_mem;
struct {
__le32 addr;
__le32 len;
u8 payload[0];
} write_mem;
struct {
__le32 addr;
__le32 param;
} execute;
struct {
__le32 addr;
} set_app_start;
struct {
__le32 addr;
} read_soc_reg;
struct {
__le32 addr;
__le32 value;
} write_soc_reg;
struct {
} get_target_info;
struct {
__le32 rom_addr;
__le32 ram_addr; /* or value */
__le32 size;
__le32 activate; /* 0=install, but dont activate */
} rompatch_install;
struct {
__le32 patch_id;
} rompatch_uninstall;
struct {
__le32 count;
__le32 patch_ids[0]; /* length of @count */
} rompatch_activate;
struct {
__le32 count;
__le32 patch_ids[0]; /* length of @count */
} rompatch_deactivate;
struct {
__le32 addr;
} lz_start;
struct {
__le32 len; /* max BMI_MAX_DATA_SIZE */
u8 payload[0]; /* length of @len */
} lz_data;
struct {
u8 name[BMI_NVRAM_SEG_NAME_SZ];
} nvram_process;
u8 payload[BMI_MAX_CMDBUF_SIZE];
};
} __packed;
union bmi_resp {
struct {
u8 payload[0];
} read_mem;
struct {
__le32 result;
} execute;
struct {
__le32 value;
} read_soc_reg;
struct {
__le32 len;
__le32 version;
__le32 type;
} get_target_info;
struct {
__le32 patch_id;
} rompatch_install;
struct {
__le32 patch_id;
} rompatch_uninstall;
struct {
/* 0 = nothing executed
* otherwise = NVRAM segment return value */
__le32 result;
} nvram_process;
u8 payload[BMI_MAX_CMDBUF_SIZE];
} __packed;
struct bmi_target_info {
u32 version;
u32 type;
};
/* in msec */
#define BMI_COMMUNICATION_TIMEOUT_HZ (1*HZ)
#define BMI_CE_NUM_TO_TARG 0
#define BMI_CE_NUM_TO_HOST 1
void ath10k_bmi_start(struct ath10k *ar);
int ath10k_bmi_done(struct ath10k *ar);
int ath10k_bmi_get_target_info(struct ath10k *ar,
struct bmi_target_info *target_info);
int ath10k_bmi_read_memory(struct ath10k *ar, u32 address,
void *buffer, u32 length);
int ath10k_bmi_write_memory(struct ath10k *ar, u32 address,
const void *buffer, u32 length);
#define ath10k_bmi_read32(ar, item, val) \
({ \
int ret; \
u32 addr; \
__le32 tmp; \
\
addr = host_interest_item_address(HI_ITEM(item)); \
ret = ath10k_bmi_read_memory(ar, addr, (u8 *)&tmp, 4); \
if (!ret) \
*val = __le32_to_cpu(tmp); \
ret; \
})
#define ath10k_bmi_write32(ar, item, val) \
({ \
int ret; \
u32 address; \
__le32 v = __cpu_to_le32(val); \
\
address = host_interest_item_address(HI_ITEM(item)); \
ret = ath10k_bmi_write_memory(ar, address, \
(u8 *)&v, sizeof(v)); \
ret; \
})
int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result);
int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address);
int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length);
int ath10k_bmi_fast_download(struct ath10k *ar, u32 address,
const void *buffer, u32 length);
#endif /* _BMI_H_ */
|
