1 /***************************************************************************
2 * Copyright (C) 2009 - 2010 by Simon Qian <SimonQian@SimonQian.com> *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
18 ***************************************************************************/
27 #include "../versaloon_include.h"
28 #include "../versaloon.h"
29 #include "../versaloon_internal.h"
31 #include "usbtoxxx_internal.h"
33 RESULT
usbtoswd_read_callback(void *p
, uint8_t *src
, uint8_t *processed
)
35 struct versaloon_pending_t
*pending
= (struct versaloon_pending_t
*)p
;
37 if (pending
->extra_data
!= NULL
)
38 *((uint8_t *)pending
->extra_data
) = src
[0];
43 RESULT
usbtoswd_write_callback(void *p
, uint8_t *src
, uint8_t *processed
)
45 struct versaloon_pending_t
*pending
= (struct versaloon_pending_t
*)p
;
47 if (pending
->extra_data
!= NULL
)
48 *((uint8_t *)pending
->extra_data
) = src
[0];
50 /* mark it processed to ignore other input data */
55 RESULT
usbtoswd_init(uint8_t interface_index
)
57 return usbtoxxx_init_command(USB_TO_SWD
, interface_index
);
60 RESULT
usbtoswd_fini(uint8_t interface_index
)
62 return usbtoxxx_fini_command(USB_TO_SWD
, interface_index
);
65 RESULT
usbtoswd_config(uint8_t interface_index
, uint8_t trn
, uint16_t retry
,
71 if (interface_index
> 7) {
72 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM
, interface_index
);
78 SET_LE_U16(&cfg_buf
[1], retry
);
79 SET_LE_U16(&cfg_buf
[3], dly
);
81 return usbtoxxx_conf_command(USB_TO_SWD
, interface_index
, cfg_buf
, 5);
84 RESULT
usbtoswd_seqout(uint8_t interface_index
, const uint8_t *data
,
87 uint16_t bytelen
= (bitlen
+ 7) >> 3;
90 if (interface_index
> 7) {
91 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM
, interface_index
);
96 SET_LE_U16(&versaloon_cmd_buf
[0], bitlen
);
97 memcpy(versaloon_cmd_buf
+ 2, data
, bytelen
);
99 return usbtoxxx_out_command(USB_TO_SWD
, interface_index
,
100 versaloon_cmd_buf
, bytelen
+ 2, 0);
103 RESULT
usbtoswd_seqin(uint8_t interface_index
, uint8_t *data
, uint16_t bitlen
)
105 uint16_t bytelen
= (bitlen
+ 7) >> 3;
109 if (interface_index
> 7) {
110 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM
, interface_index
);
115 SET_LE_U16(&buff
[0], bitlen
);
117 return usbtoxxx_in_command(USB_TO_SWD
, interface_index
, buff
, 2, bytelen
,
118 data
, 0, bytelen
, 0);
121 RESULT
usbtoswd_transact(uint8_t interface_index
, uint8_t request
,
122 uint32_t *data
, uint8_t *ack
)
128 if (interface_index
> 7) {
129 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM
, interface_index
);
134 parity
= (request
>> 1) & 1;
135 parity
+= (request
>> 2) & 1;
136 parity
+= (request
>> 3) & 1;
137 parity
+= (request
>> 4) & 1;
139 buff
[0] = (request
| 0x81 | (parity
<< 5)) & ~0x40;
141 SET_LE_U32(&buff
[1], *data
);
143 memset(buff
+ 1, 0, 4);
145 versaloon_set_extra_data(ack
);
146 if (request
& 0x04) {
148 versaloon_set_callback(usbtoswd_read_callback
);
151 versaloon_set_callback(usbtoswd_write_callback
);
154 /* Input buffer must be passed even for write operations. Otherwise
155 * the callback function is not called and ack value is not set. */
156 return usbtoxxx_inout_command(USB_TO_SWD
, interface_index
, buff
, 5, 5,
157 (uint8_t *)data
, 1, 4, 0);
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