-//
+/***************************************************************************
+ * Copyright (C) 2009-2010 by David Brownell *
+ * *
+ * 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, or *
+ * (at your option) any later version. *
+ * *
+ * 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; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+
+#ifndef SWD_H
+#define SWD_H
/* Bits in SWD command packets, written from host to target
* first bit on the wire is START
*/
#define SWD_CMD_START (1 << 0) /* always set */
#define SWD_CMD_APnDP (1 << 1) /* set only for AP access */
-#define SWD_CMD_RnW (1 << 2) /* set only for read access */
-#define SWD_CMD_A32 (3 << 3) /* bits A[3:2] of register addr */
+#define SWD_CMD_RnW (1 << 2) /* set only for read access */
+#define SWD_CMD_A32 (3 << 3) /* bits A[3:2] of register addr */
#define SWD_CMD_PARITY (1 << 5) /* parity of APnDP|RnW|A32 */
#define SWD_CMD_STOP (0 << 6) /* always clear for synch SWD */
#define SWD_CMD_PARK (0 << 7) /* not driven by host (pull high) */
| (is_read ? SWD_CMD_RnW : 0)
| ((regnum & 0xc) << 1);
- //8 cmd bits 4:1 may be set
+ /* 8 cmd bits 4:1 may be set */
if (nibble_parity(cmd >> 1))
cmd |= SWD_CMD_PARITY;
* @param where to store value to read from register
*
* @return SWD_ACK_* code for the transaction
- * or (negative) fault code
+ * or (negative) fault code
*/
int (*read_reg)(uint8_t cmd, uint32_t *value);
* @param value to be written to the register
*
* @return SWD_ACK_* code for the transaction
- * or (negative) fault code
+ * or (negative) fault code
*/
int (*write_reg)(uint8_t cmd, uint32_t value);
int *(*trace)(bool swo);
};
+int swd_init_reset(struct command_context *cmd_ctx);
+void swd_add_reset(int req_srst);
+
bool transport_is_swd(void);
+
+#endif /* SWD_H */