The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/powerpc/powermac/cudavar.h

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    1 /*-
    2  * Copyright (c) 2006 Michael Lorenz
    3  * Copyright (c) 2008 Nathan Whitehorn
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   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  * 3. Neither the name of The NetBSD Foundation nor the names of its
   15  *    contributors may be used to endorse or promote products derived
   16  *    from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   28  * POSSIBILITY OF SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  *
   32  */
   33 
   34 #ifndef _POWERPC_CUDAVAR_H_
   35 #define _POWERPC_CUDAVAR_H_
   36 
   37 #define CUDA_DEVSTR     "Apple CUDA I/O Controller"
   38 #define CUDA_MAXPACKETS 10
   39 
   40 /* Cuda addresses */
   41 #define CUDA_ADB        0
   42 #define CUDA_PSEUDO     1
   43 #define CUDA_ERROR      2       /* error codes? */
   44 #define CUDA_TIMER      3
   45 #define CUDA_POWER      4
   46 #define CUDA_IIC        5       /* XXX ??? */
   47 #define CUDA_PMU        6
   48 #define CUDA_ADB_QUERY  7
   49 
   50 /* Cuda commands */
   51 #define CMD_AUTOPOLL    1
   52 #define CMD_READ_RTC    3
   53 #define CMD_WRITE_RTC   9
   54 #define CMD_POWEROFF    10
   55 #define CMD_RESET       17
   56 #define CMD_IIC         34
   57 
   58 /* Cuda state codes */
   59 #define CUDA_NOTREADY   0x1     /* has not been initialized yet */
   60 #define CUDA_IDLE       0x2     /* the bus is currently idle */
   61 #define CUDA_OUT        0x3     /* sending out a command */
   62 #define CUDA_IN         0x4     /* receiving data */
   63 #define CUDA_POLLING    0x5     /* polling - II only */
   64 
   65 struct cuda_packet {
   66         uint8_t len;
   67         uint8_t type;
   68 
   69         uint8_t data[253];
   70         STAILQ_ENTRY(cuda_packet) pkt_q;
   71 };
   72 
   73 STAILQ_HEAD(cuda_pktq, cuda_packet);
   74 
   75 struct cuda_softc {
   76         device_t        sc_dev;
   77         int             sc_memrid;
   78         struct resource *sc_memr;
   79         int             sc_irqrid;
   80         struct resource *sc_irq;
   81         void            *sc_ih;
   82 
   83         struct mtx      sc_mutex;
   84 
   85         device_t        adb_bus;
   86 
   87         int             sc_node;
   88         volatile int    sc_state;
   89         int             sc_waiting;
   90         int             sc_polling;
   91         int             sc_iic_done;
   92         volatile int    sc_autopoll;
   93         uint32_t        sc_rtc;
   94 
   95         int sc_i2c_read_len;
   96 
   97         /* internal buffers */
   98         uint8_t         sc_in[256];
   99         uint8_t         sc_out[256];
  100         int             sc_sent;
  101         int             sc_out_length;
  102         int             sc_received;
  103 
  104         struct cuda_packet sc_pkts[CUDA_MAXPACKETS];
  105         struct cuda_pktq sc_inq;
  106         struct cuda_pktq sc_outq;
  107         struct cuda_pktq sc_freeq;
  108 };
  109 
  110 #endif /* _POWERPC_CUDAVAR_H_ */

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