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NetBSD/sys/arch/arm/omap/omap_edma.h

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/* $NetBSD: omap_edma.h,v 1.1 2015/04/14 18:37:43 bouyer Exp $ */
/*-
* Copyright (c) 2014 Jared D. McNeill <jmcneill@invisible.ca>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
#ifndef _OMAP_EDMA_H
#define _OMAP_EDMA_H
#define EDMA_PID_REG 0x0000
#define EDMA_CCCFG_REG 0x0004
#define EDMA_CCCFG_MP_EXIST __BIT(25)
#define EDMA_CCCFG_CHMAP_EXIST __BIT(24)
#define EDMA_CCCFG_NUM_REGN __BITS(21,20)
#define EDMA_CCCFG_NUM_EVQUEUE __BITS(18,16)
#define EDMA_CCCFG_NUM_PAENTRY __BITS(14,12)
#define EDMA_CCCFG_NUM_INTCH __BITS(10,8)
#define EDMA_CCCFG_NUM_QDMACH __BITS(6,4)
#define EDMA_CCCFG_NUM_DMACH __BITS(2,0)
#define EDMA_SYSCONFIG_REG 0x0010
#define EDMA_DCHMAP_REG(n) (0x0100 + 4 * (n))
#define EDMA_DCHMAP_PAENTRY __BITS(13,5)
#define EDMA_QCHMAP_REG(n) (0x0200 + 4 * (n))
#define EDMA_DMAQNUM_REG(n) (0x0240 + 4 * (n))
#define EDMA_QDMAQNUM_REG 0x0260
#define EDMA_QUEPRI_REG 0x0284
#define EDMA_EMR_REG 0x0300
#define EDMA_EMRH_REG 0x0304
#define EDMA_EMCR_REG 0x0308
#define EDMA_EMCRH_REG 0x030c
#define EDMA_QEMR_REG 0x0310
#define EDMA_QEMRC_REG 0x0314
#define EDMA_CCERR_REG 0x0318
#define EDMA_CCERRCLR_REG 0x031c
#define EDMA_EEVAL_REG 0x0320
#define EDMA_DRAE_REG(n) (0x0340 + 8 * (n))
#define EDMA_DRAEH_REG(n) (0x0340 + 8 * (n) + 4)
#define EDMA_QRAE_REG(n) (0x0380 + 4 * (n))
#define EDMA_QE_REG(q, e) (0x0400 + 0x40 * (q) + 4 * (e))
#define EDMA_QSTAT_REG(n) (0x0600 + 4 * (n))
#define EDMA_QWMTHRA_REG 0x0620
#define EDMA_CCSTAT_REG 0x0640
#define EDMA_MPFAR_REG 0x0800
#define EDMA_MPFSR_REG 0x0804
#define EDMA_MPFCR_REG 0x0808
#define EDMA_MPPAG_REG 0x080c
#define EDMA_MPPA_REG(n) (0x0810 + 4 * (n))
#define EDMA_ER_REG 0x1000
#define EDMA_ERH_REG 0x1004
#define EDMA_ECR_REG 0x1008
#define EDMA_ECRH_REG 0x100c
#define EDMA_ESR_REG 0x1010
#define EDMA_ESRH_REG 0x1014
#define EDMA_CER_REG 0x1018
#define EDMA_CERH_REG 0x101c
#define EDMA_EER_REG 0x1020
#define EDMA_EERH_REG 0x1024
#define EDMA_EECR_REG 0x1028
#define EDMA_EECRH_REG 0x102c
#define EDMA_EESR_REG 0x1030
#define EDMA_EESRH_REG 0x1034
#define EDMA_SER_REG 0x1038
#define EDMA_SERH_REG 0x103c
#define EDMA_SECR_REG 0x1040
#define EDMA_SECRH_REG 0x1044
#define EDMA_IER_REG 0x1050
#define EDMA_IERH_REG 0x1054
#define EDMA_IECR_REG 0x1058
#define EDMA_IECRH_REG 0x105c
#define EDMA_IESR_REG 0x1060
#define EDMA_IESRH_REG 0x1064
#define EDMA_IPR_REG 0x1068
#define EDMA_IPRH_REG 0x106c
#define EDMA_ICR_REG 0x1070
#define EDMA_ICRH_REG 0x1074
#define EDMA_IEVAL_REG 0x1078
#define EDMA_IEVAL_EVAL __BIT(0)
#define EDMA_QER_REG 0x1080
#define EDMA_QEER_REG 0x1084
#define EDMA_QEECR_REG 0x1088
#define EDMA_QEESR_REG 0x108c
#define EDMA_QSER_REG 0x1090
#define EDMA_QSECR_REG 0x1094
#define EDMA_PARAM_BASE(n) (0x4000 + 0x20 * (n))
#define EDMA_PARAM_OPT_REG(n) (EDMA_PARAM_BASE(n) + 0x00)
#define EDMA_PARAM_OPT_PRIV __BIT(31)
#define EDMA_PARAM_OPT_PRIVID __BITS(27,24)
#define EDMA_PARAM_OPT_ITCCHEN __BIT(23)
#define EDMA_PARAM_OPT_TCCHEN __BIT(22)
#define EDMA_PARAM_OPT_ITCINTEN __BIT(21)
#define EDMA_PARAM_OPT_TCINTEN __BIT(20)
#define EDMA_PARAM_OPT_TCC __BITS(17,12)
#define EDMA_PARAM_OPT_TCCMODE __BIT(11)
#define EDMA_PARAM_OPT_FWID __BITS(10,8)
#define EDMA_PARAM_OPT_STATIC __BIT(3)
#define EDMA_PARAM_OPT_SYNCDIM __BIT(2)
#define EDMA_PARAM_OPT_DAM __BIT(1)
#define EDMA_PARAM_OPT_SAM __BIT(0)
#define EDMA_PARAM_SRC_REG(n) (EDMA_PARAM_BASE(n) + 0x04)
#define EDMA_PARAM_CNT_REG(n) (EDMA_PARAM_BASE(n) + 0x08)
#define EDMA_PARAM_CNT_BCNT __BITS(31,16)
#define EDMA_PARAM_CNT_ACNT __BITS(15,0)
#define EDMA_PARAM_DST_REG(n) (EDMA_PARAM_BASE(n) + 0x0c)
#define EDMA_PARAM_BIDX_REG(n) (EDMA_PARAM_BASE(n) + 0x10)
#define EDMA_PARAM_BIDX_DSTBIDX __BITS(31,16)
#define EDMA_PARAM_BIDX_SRCBIDX __BITS(15,0)
#define EDMA_PARAM_LNK_REG(n) (EDMA_PARAM_BASE(n) + 0x14)
#define EDMA_PARAM_LNK_BCNTRLD __BITS(31,16)
#define EDMA_PARAM_LNK_LINK __BITS(15,0)
#define EDMA_PARAM_CIDX_REG(n) (EDMA_PARAM_BASE(n) + 0x18)
#define EDMA_PARAM_CIDX_DSTCIDX __BITS(31,16)
#define EDMA_PARAM_CIDX_SRCCIDX __BITS(15,0)
#define EDMA_PARAM_CCNT_REG(n) (EDMA_PARAM_BASE(n) + 0x1c)
#define EDMA_PARAM_CCNT_CCNT __BITS(15,0)
enum edma_type {
EDMA_TYPE_DMA,
EDMA_TYPE_QDMA
};
struct edma_param {
uint32_t ep_opt;
uint32_t ep_src;
uint32_t ep_dst;
uint16_t ep_bcnt;
uint16_t ep_acnt;
uint16_t ep_dstbidx;
uint16_t ep_srcbidx;
uint16_t ep_bcntrld;
uint16_t ep_link;
uint16_t ep_dstcidx;
uint16_t ep_srccidx;
uint16_t ep_ccnt;
};
struct edma_channel;
struct edma_channel *edma_channel_alloc(enum edma_type, unsigned int,
void (*)(void *), void *);
void edma_channel_free(struct edma_channel *);
uint16_t edma_param_alloc(struct edma_channel *);
void edma_param_free(struct edma_channel *, uint16_t);
void edma_set_param(struct edma_channel *, uint16_t, struct edma_param *);
int edma_transfer_enable(struct edma_channel *, uint16_t);
int edma_transfer_start(struct edma_channel *);
void edma_halt(struct edma_channel *);
uint8_t edma_channel_index(struct edma_channel *);
void edma_dump(struct edma_channel *);
void edma_dump_param(struct edma_channel *, uint16_t);
#endif /* !_OMAP_EDMA_H */
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