91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Internal header file for QE TDM mode routines.
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*
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* Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Authors: Zhao Qiang <qiang.zhao@nxp.com>
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*/
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#ifndef _QE_TDM_H_
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#define _QE_TDM_H_
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <soc/fsl/qe/immap_qe.h>
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#include <soc/fsl/qe/qe.h>
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#include <soc/fsl/qe/ucc.h>
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#include <soc/fsl/qe/ucc_fast.h>
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/* SI RAM entries */
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#define SIR_LAST 0x0001
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#define SIR_BYTE 0x0002
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#define SIR_CNT(x) ((x) << 2)
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#define SIR_CSEL(x) ((x) << 5)
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#define SIR_SGS 0x0200
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#define SIR_SWTR 0x4000
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#define SIR_MCC 0x8000
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#define SIR_IDLE 0
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/* SIxMR fields */
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#define SIMR_SAD(x) ((x) << 12)
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#define SIMR_SDM_NORMAL 0x0000
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#define SIMR_SDM_INTERNAL_LOOPBACK 0x0800
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#define SIMR_SDM_MASK 0x0c00
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#define SIMR_CRT 0x0040
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#define SIMR_SL 0x0020
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#define SIMR_CE 0x0010
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#define SIMR_FE 0x0008
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#define SIMR_GM 0x0004
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#define SIMR_TFSD(n) (n)
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#define SIMR_RFSD(n) ((n) << 8)
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enum tdm_ts_t {
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TDM_TX_TS,
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TDM_RX_TS
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};
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enum tdm_framer_t {
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TDM_FRAMER_T1,
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TDM_FRAMER_E1
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};
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enum tdm_mode_t {
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TDM_INTERNAL_LOOPBACK,
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TDM_NORMAL
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};
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struct si_mode_info {
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u8 simr_rfsd;
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u8 simr_tfsd;
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u8 simr_crt;
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u8 simr_sl;
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u8 simr_ce;
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u8 simr_fe;
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u8 simr_gm;
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};
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struct ucc_tdm_info {
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struct ucc_fast_info uf_info;
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struct si_mode_info si_info;
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};
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struct ucc_tdm {
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u16 tdm_port; /* port for this tdm:TDMA,TDMB */
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u32 siram_entry_id;
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u16 __iomem *siram;
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struct si1 __iomem *si_regs;
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enum tdm_framer_t tdm_framer_type;
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enum tdm_mode_t tdm_mode;
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u8 num_of_ts; /* the number of timeslots in this tdm frame */
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u32 tx_ts_mask; /* tx time slot mask */
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u32 rx_ts_mask; /* rx time slot mask */
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};
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int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
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struct ucc_tdm_info *ut_info);
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void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
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#endif
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