nuclear@2: /*
nuclear@2: gbasys - a gameboy advance hardware abstraction library
nuclear@2: Copyright (C) 2005-2012  John Tsiombikas <nuclear@member.fsf.org>
nuclear@2: 
nuclear@2: This program is free software: you can redistribute it and/or modify
nuclear@2: it under the terms of the GNU General Public License as published by
nuclear@2: the Free Software Foundation, either version 3 of the License, or
nuclear@2: (at your option) any later version.
nuclear@2: 
nuclear@2: This program is distributed in the hope that it will be useful,
nuclear@2: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@2: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@2: GNU General Public License for more details.
nuclear@2: 
nuclear@2: You should have received a copy of the GNU General Public License
nuclear@2: along with this program.  If not, see <http://www.gnu.org/licenses/>.
nuclear@2: */
nuclear@2: #ifndef COMM_H_
nuclear@2: #define COMM_H_
nuclear@2: 
nuclear@2: enum {
nuclear@2: 	COMM_SIO8_MASTER,
nuclear@2: 	COMM_SIO8_SLAVE,
nuclear@2: 	COMM_SIO32_MASTER,
nuclear@2: 	COMM_SIO32_SLAVE,
nuclear@2: 	COMM_UART,
nuclear@2: 	COMM_GPIO
nuclear@2: };
nuclear@2: 
nuclear@2: void comm_setup(int mode);
nuclear@2: 
nuclear@2: /* synchronous transfer, blocks until complete */
nuclear@2: void sio_transfer(void *in, const void *out);
nuclear@2: 
nuclear@2: /* async transfer, returns immediately, raises SIGIO when complete */
nuclear@2: void sio_transfer_async(void *in, const void *out);
nuclear@2: 
nuclear@2: 
nuclear@2: /* GPIO functions */
nuclear@2: enum { GPIO_DIR_IN, GPIO_DIR_OUT };
nuclear@2: 
nuclear@2: void gpio_dir(int dir_so, int dir_si, int dir_sd, int dir_sc);
nuclear@2: void gpio_dir_mask(unsigned char dir);
nuclear@2: 
nuclear@2: void gpio_set(unsigned char val);
nuclear@2: unsigned char gpio_get(void);
nuclear@2: 
nuclear@2: #endif	/* COMM_H_ */