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, see <http://www.gnu.org/licenses/>. *
16 ***************************************************************************/
25 #include "../versaloon_include.h"
26 #include "../versaloon.h"
27 #include "../versaloon_internal.h"
29 #include "usbtoxxx_internal.h"
31 RESULT usbtoswd_read_callback(void *p, uint8_t *src, uint8_t *processed)
33 struct versaloon_pending_t *pending = (struct versaloon_pending_t *)p;
35 if (pending->extra_data != NULL)
36 *((uint8_t *)pending->extra_data) = src[0];
41 RESULT usbtoswd_write_callback(void *p, uint8_t *src, uint8_t *processed)
43 struct versaloon_pending_t *pending = (struct versaloon_pending_t *)p;
45 if (pending->extra_data != NULL)
46 *((uint8_t *)pending->extra_data) = src[0];
48 /* mark it processed to ignore other input data */
53 RESULT usbtoswd_init(uint8_t interface_index)
55 return usbtoxxx_init_command(USB_TO_SWD, interface_index);
58 RESULT usbtoswd_fini(uint8_t interface_index)
60 return usbtoxxx_fini_command(USB_TO_SWD, interface_index);
63 RESULT usbtoswd_config(uint8_t interface_index, uint8_t trn, uint16_t retry,
69 if (interface_index > 7) {
70 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
76 SET_LE_U16(&cfg_buf[1], retry);
77 SET_LE_U16(&cfg_buf[3], dly);
79 return usbtoxxx_conf_command(USB_TO_SWD, interface_index, cfg_buf, 5);
82 RESULT usbtoswd_seqout(uint8_t interface_index, const uint8_t *data,
85 uint16_t bytelen = (bitlen + 7) >> 3;
88 if (interface_index > 7) {
89 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
94 SET_LE_U16(&versaloon_cmd_buf[0], bitlen);
95 memcpy(versaloon_cmd_buf + 2, data, bytelen);
97 return usbtoxxx_out_command(USB_TO_SWD, interface_index,
98 versaloon_cmd_buf, bytelen + 2, 0);
101 RESULT usbtoswd_seqin(uint8_t interface_index, uint8_t *data, uint16_t bitlen)
103 uint16_t bytelen = (bitlen + 7) >> 3;
107 if (interface_index > 7) {
108 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
113 SET_LE_U16(&buff[0], bitlen);
115 return usbtoxxx_in_command(USB_TO_SWD, interface_index, buff, 2, bytelen,
116 data, 0, bytelen, 0);
119 RESULT usbtoswd_transact(uint8_t interface_index, uint8_t request,
120 uint32_t *data, uint8_t *ack)
126 if (interface_index > 7) {
127 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
132 parity = (request >> 1) & 1;
133 parity += (request >> 2) & 1;
134 parity += (request >> 3) & 1;
135 parity += (request >> 4) & 1;
137 buff[0] = (request | 0x81 | (parity << 5)) & ~0x40;
139 SET_LE_U32(&buff[1], *data);
141 memset(buff + 1, 0, 4);
143 versaloon_set_extra_data(ack);
144 if (request & 0x04) {
146 versaloon_set_callback(usbtoswd_read_callback);
149 versaloon_set_callback(usbtoswd_write_callback);
152 /* Input buffer must be passed even for write operations. Otherwise
153 * the callback function is not called and ack value is not set. */
154 return usbtoxxx_inout_command(USB_TO_SWD, interface_index, buff, 5, 5,
155 (uint8_t *)data, 1, 4, 0);