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/*
* Copyright © 2008 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.
*/
#include "ccdbg.h"
void
ccdbg_debug_mode(struct ccdbg *dbg)
{
/* force two rising clocks while holding RESET_N low */
ccdbg_half_clock(dbg);
cccp_write(dbg, CC_RESET_N|CC_CLOCK, 0); ccdbg_half_clock(dbg);
cccp_write(dbg, CC_CLOCK, CC_CLOCK); ccdbg_half_clock(dbg);
cccp_write(dbg, CC_CLOCK, 0); ccdbg_half_clock(dbg);
cccp_write(dbg, CC_CLOCK, CC_CLOCK); ccdbg_half_clock(dbg);
cccp_write(dbg, CC_RESET_N, CC_RESET_N); ccdbg_half_clock(dbg);
}
void
ccdbg_reset(struct ccdbg *dbg)
{
ccdbg_half_clock(dbg);
cccp_write(dbg, CC_RESET_N, 0); ccdbg_half_clock(dbg);
cccp_write(dbg, CC_RESET_N, CC_RESET_N);
}
uint8_t
ccdbg_read_status(struct ccdbg *dbg)
{
return ccdbg_cmd_write_read8(dbg, CC_READ_STATUS, NULL, 0);
}
uint8_t
ccdbg_rd_config(struct ccdbg *dbg)
{
return ccdbg_cmd_write_read8(dbg, CC_RD_CONFIG, NULL, 0);
}
uint16_t
ccdbg_get_chip_id(struct ccdbg *dbg)
{
return ccdbg_cmd_write_read16(dbg, CC_GET_CHIP_ID, NULL, 0);
}
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