sys/dev/marvell/gtmpscvar.h

   1 /*      $NetBSD: gtmpscvar.h,v 1.6 2005/12/11 12:22:16 christos Exp $   */
   2
   3 /*
   4  * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed for the NetBSD Project by
  18  *      Allegro Networks, Inc., and Wasabi Systems, Inc.
  19  * 4. The name of Allegro Networks, Inc. may not be used to endorse
  20  *    or promote products derived from this software without specific prior
  21  *    written permission.
  22  * 5. The name of Wasabi Systems, Inc. may not be used to endorse
  23  *    or promote products derived from this software without specific prior
  24  *    written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND
  27  * WASABI SYSTEMS, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  28  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  29  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  30  * IN NO EVENT SHALL EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC.
  31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  37  * POSSIBILITY OF SUCH DAMAGE.
  38  */
  39
  40 /*
  41  * gtmpscvar.h - includes for gtmpsctty GT-64260 UART-mode serial driver
  42  *
  43  * creation     Mon Apr  9 19:54:33 PDT 2001    cliff
  44  */
  45 #ifndef _DEV_MARVELL_GTMPSCVAR_H
  46 #define _DEV_MARVELL_GTMPSCVAR_H
  47
  48 #include "opt_marvell.h"
  49
  50 #ifndef GT_MPSC_DEFAULT_BAUD_RATE
  51 #define GT_MPSC_DEFAULT_BAUD_RATE       115200
  52 #endif
  53 #define GTMPSC_CLOCK_DIVIDER            8
  54 #define GTMPSC_MMCR_HI_TCDV_DEFAULT     GTMPSC_MMCR_HI_TCDV_8X
  55 #define GTMPSC_MMCR_HI_RCDV_DEFAULT     GTMPSC_MMCR_HI_RCDV_8X
  56 #define BRG_BCR_CDV_MAX                 0xffff
  57
  58 /*
  59  * gtmpsc_poll_dmapage_t - used for MPSC getchar/putchar polled console
  60  *
  61  *      sdma descriptors must be 16 byte aligned
  62  *      sdma RX buffer pointers must be 8 byte aligned
  63  */
  64 #define GTMPSC_NTXDESC 64
  65 #define GTMPSC_NRXDESC 64
  66 #define GTMPSC_TXBUFSZ 16
  67 #define GTMPSC_RXBUFSZ 16
  68
  69 typedef struct gtmpsc_polltx {
  70         sdma_desc_t txdesc;
  71         unsigned char txbuf[GTMPSC_TXBUFSZ];
  72 } gtmpsc_polltx_t;
  73
  74 typedef struct gtmpsc_pollrx {
  75         sdma_desc_t rxdesc;
  76         unsigned char rxbuf[GTMPSC_RXBUFSZ];
  77 } gtmpsc_pollrx_t;
  78
  79 typedef struct {
  80         gtmpsc_polltx_t tx[GTMPSC_NTXDESC];
  81         gtmpsc_pollrx_t rx[GTMPSC_NRXDESC];
  82 } gtmpsc_poll_sdma_t;
  83
  84 /* Size of the Rx FIFO */
  85 #define GTMPSC_RXFIFOSZ   (GTMPSC_NRXDESC * GTMPSC_RXBUFSZ * 2)
  86
  87 /* Flags in sc->gtmpsc_flags */
  88 #define GTMPSCF_KGDB      1
  89
  90 typedef struct gtmpsc_softc {
  91         struct device gtmpsc_dev;
  92         bus_space_tag_t gtmpsc_memt;
  93         bus_space_handle_t gtmpsc_memh;
  94         bus_dma_tag_t gtmpsc_dmat;
  95         void *sc_si;                            /* softintr cookie */
  96         struct tty *gtmpsc_tty;                 /* our tty */
  97         int gtmpsc_unit;
  98         unsigned int gtmpsc_flags;
  99         unsigned int gtmpsc_baud_rate;
 100         bus_dma_segment_t gtmpsc_dma_segs[1];
 101         bus_dmamap_t gtmpsc_dma_map;
 102         gtmpsc_poll_sdma_t *gtmpsc_poll_sdmapage;
 103         unsigned int gtmpsc_poll_txix;          /* "current" tx xfer index */
 104         unsigned int gtmpsc_poll_rxix;          /* "current" rx xfer index */
 105         unsigned int gtmpsc_cx;                 /* data index in gtmpsc_rxbuf */
 106         unsigned int gtmpsc_nc;                 /* data count in gtmpsc_rxbuf */
 107         unsigned int gtmpsc_chr2;                 /* soft copy of CHR2 */
 108         unsigned int gtmpsc_chr3;                 /* soft copy of CHR3 */
 109         unsigned int gtmpsc_brg_bcr;              /* soft copy of BRG_BCR */
 110         volatile u_char sc_heldchange;          /* new params wait for output */
 111         volatile u_char sc_tx_busy;
 112         volatile u_char sc_tx_done;
 113         volatile u_char sc_tx_stopped;
 114         u_char  *sc_tba;                        /* Tx buf ptr */
 115         u_int   sc_tbc;                         /* Tx buf cnt */
 116         u_int   sc_heldtbc;
 117         unsigned char gtmpsc_rxbuf[GTMPSC_RXBUFSZ];     /* polling read buffer */
 118         volatile unsigned int gtmpsc_rxfifo_navail;
 119                                                 /* available count in fifo */
 120         unsigned int gtmpsc_rxfifo_putix;               /* put index in fifo */
 121         unsigned int gtmpsc_rxfifo_getix;               /* get index in fifo */
 122         unsigned char gtmpsc_rxfifo[GTMPSC_RXFIFOSZ];
 123         unsigned int cnt_rx_from_sdma;
 124         unsigned int cnt_rx_to_fifo;
 125         unsigned int cnt_rx_from_fifo;
 126         unsigned int cnt_tx_from_ldisc;
 127         unsigned int cnt_tx_to_sdma;
 128 } gtmpsc_softc_t;
 129
 130 /* Make receiver interrupt 8 times a second */
 131 #define GTMPSC_MAXIDLE(baudrate)  ((baudrate) / (10 * 8)) /* There are 10 bits
 132                                                            in a frame */
 133
 134 int gtmpsccnattach(bus_space_tag_t, bus_space_handle_t, int, int, tcflag_t);
 135 int gtmpsc_is_console(bus_space_tag_t, int);
 136
 137 #endif /* _DEV_MARVELL_GTPSCVAR_H */