ps3vuart_port.h

   1 /*-
   2  * Copyright (C) 2011, 2012 glevand <geoffrey.levand@mail.ru>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 #ifndef _PS3VUART_PORT_H
  30 #define _PS3VUART_PORT_H
  31
  32 enum ps3vuart_port_param {
  33         PS3VUART_PORT_PARAM_TX_TRIG     = 0, /* rw */
  34         PS3VUART_PORT_PARAM_RX_TRIG     = 1, /* rw */
  35         PS3VUART_PORT_PARAM_INTR_MASK   = 2, /* rw */
  36         PS3VUART_PORT_PARAM_RX_BUFSIZE  = 3, /* ro */
  37         PS3VUART_PORT_PARAM_RX_BYTES    = 4, /* ro */
  38         PS3VUART_PORT_PARAM_TX_BUFSIZE  = 5, /* ro */
  39         PS3VUART_PORT_PARAM_TX_BYTES    = 6, /* ro */
  40         PS3VUART_PORT_PARAM_INTR_STAT   = 7, /* ro */
  41 };
  42
  43 enum ps3vuart_port_intr {
  44         PS3VUART_PORT_INTR_TX           = (1ul << 0),
  45         PS3VUART_PORT_INTR_RX           = (1ul << 1),
  46         PS3VUART_PORT_INTR_DISCONNECT   = (1ul << 2),
  47         PS3VUART_PORT_INTR_CONNECT      = (1ul << 3),
  48 };
  49
  50 struct ps3vuart_port_buf {
  51         TAILQ_ENTRY(ps3vuart_port_buf) vb_queue;
  52
  53         char *vb_head;
  54         char *vb_tail;
  55         char vb_data[0];
  56 };
  57
  58 TAILQ_HEAD(ps3vuart_port_bufq, ps3vuart_port_buf);
  59
  60 struct ps3vuart_port_stat {
  61         unsigned long vs_rx_bytes;
  62         unsigned long vs_tx_bytes;
  63         unsigned long vs_rx_intrs;
  64         unsigned long vs_tx_intrs;
  65 };
  66
  67 struct ps3vuart_port {
  68         int vp_port;
  69
  70         struct mtx vp_mtx;
  71
  72         uint64_t vp_intr_mask;
  73
  74         struct ps3vuart_port_bufq vp_rx_bufq;
  75         int vp_rx_bufq_bytes;
  76
  77         struct ps3vuart_port_bufq vp_tx_bufq;
  78         int vp_tx_bufq_bytes;
  79
  80         struct ps3vuart_port_stat vp_stat;
  81 };
  82
  83 int ps3vuart_port_init(struct ps3vuart_port *vp, int port);
  84
  85 void ps3vuart_port_fini(struct ps3vuart_port *vp);
  86
  87 int ps3vuart_port_write(struct ps3vuart_port *vp, const char *buf, int size,
  88     int *written);
  89
  90 int ps3vuart_port_read(struct ps3vuart_port *vp, char *buf, int size,
  91     int *read);
  92
  93 int ps3vuart_port_set_param(struct ps3vuart_port *vp, int param, uint64_t val);
  94
  95 int ps3vuart_port_get_param(struct ps3vuart_port *vp, int param, uint64_t *val);
  96
  97 void ps3vuart_port_intr(struct ps3vuart_port *vp);
  98
  99 void ps3vuart_port_get_stat(struct ps3vuart_port *vp,
 100     struct ps3vuart_port_stat *stat);
 101
 102 #endif /* _PS3VUART_PORT_H */