FreeBSD/Linux Kernel Cross Reference
sys/dev/marvell/gtmpscvar.h

     /*      $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 */

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