/* $NetBSD: omap_edma.h,v 1.1 2015/04/14 18:37:43 bouyer Exp $ */ /*- * Copyright (c) 2014 Jared D. McNeill * 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 */