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/* swd.h
*
* Copyright 2011 Brian Swetland <swetland@frotz.net>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _SWDP_H_
#define _SWDP_H_
void swd_init(void);
void swd_reset(void);
int swd_write(unsigned reg, unsigned val);
int swd_read(unsigned reg, unsigned *val);
unsigned swd_set_clock(unsigned khz);
unsigned swo_set_clock(unsigned khz);
void swd_hw_reset(int assert);
void jtag_init(void);
int jtag_io(unsigned count, unsigned tms, unsigned tdi, unsigned *tdo);
// swdp_read/write() register codes
// Park Stop Parity Addr3 Addr2 RnW APnDP Start
#define RD_IDCODE 0b10100101
#define RD_DPCTRL 0b10001101
#define RD_RESEND 0b10010101
#define RD_BUFFER 0b10111101
#define WR_ABORT 0b10000001
#define WR_DPCTRL 0b10101001
#define WR_SELECT 0b10110001
#define WR_BUFFER 0b10011001
#define RD_AP0 0b10000111
#define RD_AP1 0b10101111
#define RD_AP2 0b10110111
#define RD_AP3 0b10011111
#define WR_AP0 0b10100011
#define WR_AP1 0b10001011
#define WR_AP2 0b10010011
#define WR_AP3 0b10111011
#endif
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