NetBSD/sys/dev/marvell/gtmpscvar.h

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/* $NetBSD: gtmpscvar.h,v 1.4 2003/03/24 17:02:15 matt Exp $ */
/*
* Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Allegro Networks, Inc., and Wasabi Systems, Inc.
* 4. The name of Allegro Networks, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* 5. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND
* WASABI SYSTEMS, INC. ``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 EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC.
* 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.
*/
/*
* gtmpscvar.h - includes for gtmpsctty GT-64260 UART-mode serial driver
*
* creation Mon Apr 9 19:54:33 PDT 2001 cliff
*/
#ifndef _DEV_MARVELL_GTMPSCVAR_H
#define _DEV_MARVELL_GTMPSCVAR_H
#include "opt_marvell.h"
#ifndef GT_MPSC_DEFAULT_BAUD_RATE
#define GT_MPSC_DEFAULT_BAUD_RATE 115200
#endif
#define GTMPSC_CLOCK_DIVIDER 8
#define GTMPSC_MMCR_HI_TCDV_DEFAULT GTMPSC_MMCR_HI_TCDV_8X
#define GTMPSC_MMCR_HI_RCDV_DEFAULT GTMPSC_MMCR_HI_RCDV_8X
#define BRG_BCR_CDV_MAX 0xffff
/*
* gtmpsc_poll_dmapage_t - used for MPSC getchar/putchar polled console
*
* sdma descriptors must be 16 byte aligned
* sdma RX buffer pointers must be 8 byte aligned
*/
#define GTMPSC_NTXDESC 64
#define GTMPSC_NRXDESC 64
#define GTMPSC_TXBUFSZ 16
#define GTMPSC_RXBUFSZ 16
typedef struct gtmpsc_polltx {
sdma_desc_t txdesc;
unsigned char txbuf[GTMPSC_TXBUFSZ];
} gtmpsc_polltx_t;
typedef struct gtmpsc_pollrx {
sdma_desc_t rxdesc;
unsigned char rxbuf[GTMPSC_RXBUFSZ];
} gtmpsc_pollrx_t;
typedef struct {
gtmpsc_polltx_t tx[GTMPSC_NTXDESC];
gtmpsc_pollrx_t rx[GTMPSC_NRXDESC];
} gtmpsc_poll_sdma_t;
/* Size of the Rx FIFO */
#define GTMPSC_RXFIFOSZ (GTMPSC_NRXDESC * GTMPSC_RXBUFSZ * 2)
/* Flags in sc->gtmpsc_flags */
#define GTMPSCF_KGDB 1
typedef struct gtmpsc_softc {
struct device gtmpsc_dev;
bus_space_tag_t gtmpsc_memt;
bus_space_handle_t gtmpsc_memh;
bus_dma_tag_t gtmpsc_dmat;
void *sc_si; /* softintr cookie */
struct tty *gtmpsc_tty; /* our tty */
int gtmpsc_unit;
unsigned int gtmpsc_flags;
unsigned int gtmpsc_baud_rate;
bus_dma_segment_t gtmpsc_dma_segs[1];
bus_dmamap_t gtmpsc_dma_map;
gtmpsc_poll_sdma_t *gtmpsc_poll_sdmapage;
unsigned int gtmpsc_poll_txix; /* "current" tx xfer index */
unsigned int gtmpsc_poll_rxix; /* "current" rx xfer index */
unsigned int gtmpsc_cx; /* data index in gtmpsc_rxbuf */
unsigned int gtmpsc_nc; /* data count in gtmpsc_rxbuf */
unsigned int gtmpsc_chr2; /* soft copy of CHR2 */
unsigned int gtmpsc_chr3; /* soft copy of CHR3 */
unsigned int gtmpsc_brg_bcr; /* soft copy of BRG_BCR */
volatile u_char sc_heldchange; /* new params wait for output */
volatile u_char sc_tx_busy;
volatile u_char sc_tx_done;
volatile u_char sc_tx_stopped;
u_char *sc_tba; /* Tx buf ptr */
u_int sc_tbc; /* Tx buf cnt */
u_int sc_heldtbc;
unsigned char gtmpsc_rxbuf[GTMPSC_RXBUFSZ]; /* polling read buffer */
volatile unsigned int gtmpsc_rxfifo_navail;
/* available count in fifo */
unsigned int gtmpsc_rxfifo_putix; /* put index in fifo */
unsigned int gtmpsc_rxfifo_getix; /* get index in fifo */
unsigned char gtmpsc_rxfifo[GTMPSC_RXFIFOSZ];
unsigned int cnt_rx_from_sdma;
unsigned int cnt_rx_to_fifo;
unsigned int cnt_rx_from_fifo;
unsigned int cnt_tx_from_ldisc;
unsigned int cnt_tx_to_sdma;
} gtmpsc_softc_t;
/* Macros to clear/set/test flags. */
#define SET(t, f) (t) |= (f)
#define CLR(t, f) (t) &= ~(f)
#define ISSET(t, f) ((t) & (f))
/* Make receiver interrupt 8 times a second */
#define GTMPSC_MAXIDLE(baudrate) ((baudrate) / (10 * 8)) /* There are 10 bits
in a frame */
int gtmpsccnattach(bus_space_tag_t, bus_space_handle_t, int, int, tcflag_t);
int gtmpsc_is_console(bus_space_tag_t, int);
#endif /* _DEV_MARVELL_GTPSCVAR_H */