ti_edma3.h

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    1 /*-
    2  * Copyright (c) 2012 Damjan Marion <dmarion@Freebsd.org>
    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  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/10.0/sys/arm/ti/ti_edma3.h 239281 2012-08-15 06:31:32Z gonzo $
   27  */
   28 
   29 #ifndef _TI_EDMA3_H_
   30 #define _TI_EDMA3_H_
   31 
   32 /* Direct Mapped EDMA3 Events */
   33 #define TI_EDMA3_EVENT_SDTXEVT1                 2
   34 #define TI_EDMA3_EVENT_SDRXEVT1                 3
   35 #define TI_EDMA3_EVENT_SDTXEVT0                 24
   36 #define TI_EDMA3_EVENT_SDRXEVT0                 25
   37 
   38 struct ti_edma3cc_param_set {
   39         struct {
   40                 uint32_t sam:1;         /* Source address mode */
   41                 uint32_t dam:1;         /* Destination address mode */
   42                 uint32_t syncdim:1;     /* Transfer synchronization dimension */
   43                 uint32_t static_set:1;  /* Static Set */
   44                 uint32_t :4;
   45                 uint32_t fwid:3;        /* FIFO Width */
   46                 uint32_t tccmode:1;     /* Transfer complete code mode */
   47                 uint32_t tcc:6;         /* Transfer complete code */
   48                 uint32_t :2;
   49                 uint32_t tcinten:1;     /* Transfer complete interrupt enable */
   50                 uint32_t itcinten:1;    /* Intermediate xfer completion intr. ena */
   51                 uint32_t tcchen:1;      /* Transfer complete chaining enable */
   52                 uint32_t itcchen:1;     /* Intermediate xfer completion chaining ena */
   53                 uint32_t privid:4;      /* Privilege identification */
   54                 uint32_t :3;
   55                 uint32_t priv:1;        /* Privilege level */
   56         } opt;
   57         uint32_t src;                   /* Channel Source Address */
   58         uint16_t acnt;                  /* Count for 1st Dimension */
   59         uint16_t bcnt;                  /* Count for 2nd Dimension */
   60         uint32_t dst;                   /* Channel Destination Address */
   61         int16_t srcbidx;                /* Source B Index */
   62         int16_t dstbidx;                /* Destination B Index */
   63         uint16_t link;                  /* Link Address */
   64         uint16_t bcntrld;               /* BCNT Reload */
   65         int16_t srccidx;                /* Source C Index */
   66         int16_t dstcidx;                /* Destination C Index */
   67         uint16_t ccnt;                  /* Count for 3rd Dimension */
   68         uint16_t reserved;              /* Reserved */
   69 };
   70 
   71 void ti_edma3_init(unsigned int eqn);
   72 int ti_edma3_request_dma_ch(unsigned int ch, unsigned int tccn, unsigned int eqn);
   73 int ti_edma3_request_qdma_ch(unsigned int ch, unsigned int tccn, unsigned int eqn);
   74 int ti_edma3_enable_transfer_manual(unsigned int ch);
   75 int ti_edma3_enable_transfer_qdma(unsigned int ch);
   76 int ti_edma3_enable_transfer_event(unsigned int ch);
   77 
   78 void ti_edma3_param_write(unsigned int ch, struct ti_edma3cc_param_set *prs);
   79 void ti_edma3_param_read(unsigned int ch, struct ti_edma3cc_param_set *prs);
   80 
   81 #endif /* _TI_EDMA3_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm/ti/ti_edma3.h

FreeBSD/Linux Kernel Cross Reference
sys/arm/ti/ti_edma3.h