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/*
* Copyright © 2009 Keith Packard <keithp@keithp.com>
*
* 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 _CC_BITBANG_H_
#define _CC_BITBANG_H_
#include <stdint.h>
#define CC_CLOCK 0x1
#define CC_DATA 0x2
#define CC_RESET_N 0x4
#define CC_CLOCK_US (2)
/* Telemetrum has a 10k pull-up to 3.3v, a 0.001uF cap to ground
* and a 2.7k resistor to the reset line. This takes about 6us
* to settle, so we'll wait longer than that after changing the reset line
*/
#define CC_RESET_US (12)
struct cc_bitbang;
void
cc_bitbang_set_clock(uint32_t us);
void
cc_bitbang_half_clock(struct cc_bitbang *bb);
void
cc_bitbang_wait_reset(struct cc_bitbang *bb);
struct cc_bitbang *
cc_bitbang_open(void);
void
cc_bitbang_close(struct cc_bitbang *bb);
void
cc_bitbang_debug_mode(struct cc_bitbang *bb);
void
cc_bitbang_reset(struct cc_bitbang *bb);
int
cc_bitbang_write(struct cc_bitbang *bb, uint8_t mask, uint8_t value);
void
cc_bitbang_read(struct cc_bitbang *bb, uint8_t *valuep);
void
cc_bitbang_sync(struct cc_bitbang *bb);
void
cc_bitbang_print(char *format, uint8_t mask, uint8_t set);
void
cc_bitbang_print(char *format, uint8_t mask, uint8_t set);
void
cc_bitbang_send(struct cc_bitbang *bb, uint8_t mask, uint8_t set);
void
cc_bitbang_send_bit(struct cc_bitbang *bb, uint8_t bit);
void
cc_bitbang_send_byte(struct cc_bitbang *bb, uint8_t byte);
void
cc_bitbang_send_bytes(struct cc_bitbang *bb, uint8_t *bytes, int nbytes);
void
cc_bitbang_recv_bit(struct cc_bitbang *bb, int first, uint8_t *bit);
void
cc_bitbang_recv_byte(struct cc_bitbang *bb, int first, uint8_t *bytep);
void
cc_bitbang_recv_bytes(struct cc_bitbang *bb, uint8_t *bytes, int nbytes);
#endif /* _CC_BITBANG_H_ */
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