98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/* $NetBSD: at91usartvar.h,v 1.3 2009/10/23 06:53:13 snj Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2007 Embedtronics Oy. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#ifndef _AT91USARTVAR_H_
|
|
#define _AT91USARTVAR_H_
|
|
|
|
#include <sys/tty.h>
|
|
#include <arm/at91/at91pdcvar.h>
|
|
|
|
/* Hardware flag masks */
|
|
#define COM_HW_NOIEN 0x01
|
|
#define COM_HW_DEV_OK 0x20
|
|
#define COM_HW_CONSOLE 0x40
|
|
#define COM_HW_KGDB 0x80
|
|
|
|
#define RX_TTY_BLOCKED 0x01
|
|
#define RX_TTY_OVERFLOWED 0x02
|
|
#define RX_IBUF_BLOCKED 0x04
|
|
#define RX_IBUF_OVERFLOWED 0x08
|
|
#define RX_ANY_BLOCK 0x0f
|
|
|
|
#define AT91USART_RING_SIZE MAX(PAGE_SIZE, 2048)
|
|
|
|
struct at91usart_softc {
|
|
device_t sc_dev;
|
|
bus_addr_t sc_hwbase;
|
|
bus_space_tag_t sc_iot;
|
|
bus_space_handle_t sc_ioh;
|
|
bus_dma_tag_t sc_dmat;
|
|
int sc_pid;
|
|
|
|
/* hardware flow control callbacks: */
|
|
void (*hwflow)(struct at91usart_softc *, int enabled);
|
|
void (*start_tx)(struct at91usart_softc *sc);
|
|
void (*stop_tx)(struct at91usart_softc *sc);
|
|
void (*rx_started)(struct at91usart_softc *sc);
|
|
void (*rx_stopped)(struct at91usart_softc *sc);
|
|
void (*rx_rts_ctl)(struct at91usart_softc *sc, int enabled);
|
|
|
|
at91pdc_fifo_t sc_rx_fifo;
|
|
at91pdc_fifo_t sc_tx_fifo;
|
|
|
|
u_char *sc_tba;
|
|
int sc_tbc;
|
|
|
|
void *sc_si;
|
|
|
|
struct tty *sc_tty;
|
|
|
|
/* status flags */
|
|
int sc_hwflags, sc_swflags;
|
|
|
|
volatile u_int sc_rx_flags,
|
|
sc_rx_ready;
|
|
|
|
volatile u_int sc_csr, sc_brgr, sc_ier, sc_poll;
|
|
|
|
/* power management hooks */
|
|
int (*enable)(struct at91usart_softc *);
|
|
int (*disable)(struct at91usart_softc *);
|
|
|
|
int enabled;
|
|
#if NRND > 0 && defined(RND_COM)
|
|
rndsource_element_t rnd_source;
|
|
#endif
|
|
};
|
|
|
|
struct at91bus_attach_args;
|
|
void at91usart_attach_subr(struct at91usart_softc *, struct at91bus_attach_args *);
|
|
int at91usart_cn_attach(bus_space_tag_t, bus_addr_t, bus_space_handle_t, u_int32_t mstclk, int, tcflag_t);
|
|
|
|
#endif /* _AT91USARTVAR_H_ */
|