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);