include/soc/fsl/qe/qe_tdm.h

   1 /*
   2  * Internal header file for QE TDM mode routines.
   3  *
   4  * Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
   5  *
   6  * Authors:     Zhao Qiang <qiang.zhao@nxp.com>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version
  12  */
  13
  14 #ifndef _QE_TDM_H_
  15 #define _QE_TDM_H_
  16
  17 #include <linux/kernel.h>
  18 #include <linux/list.h>
  19
  20 #include <soc/fsl/qe/immap_qe.h>
  21 #include <soc/fsl/qe/qe.h>
  22
  23 #include <soc/fsl/qe/ucc.h>
  24 #include <soc/fsl/qe/ucc_fast.h>
  25
  26 /* SI RAM entries */
  27 #define SIR_LAST        0x0001
  28 #define SIR_BYTE        0x0002
  29 #define SIR_CNT(x)      ((x) << 2)
  30 #define SIR_CSEL(x)     ((x) << 5)
  31 #define SIR_SGS         0x0200
  32 #define SIR_SWTR        0x4000
  33 #define SIR_MCC         0x8000
  34 #define SIR_IDLE        0
  35
  36 /* SIxMR fields */
  37 #define SIMR_SAD(x) ((x) << 12)
  38 #define SIMR_SDM_NORMAL 0x0000
  39 #define SIMR_SDM_INTERNAL_LOOPBACK      0x0800
  40 #define SIMR_SDM_MASK   0x0c00
  41 #define SIMR_CRT        0x0040
  42 #define SIMR_SL         0x0020
  43 #define SIMR_CE         0x0010
  44 #define SIMR_FE         0x0008
  45 #define SIMR_GM         0x0004
  46 #define SIMR_TFSD(n)    (n)
  47 #define SIMR_RFSD(n)    ((n) << 8)
  48
  49 enum tdm_ts_t {
  50         TDM_TX_TS,
  51         TDM_RX_TS
  52 };
  53
  54 enum tdm_framer_t {
  55         TDM_FRAMER_T1,
  56         TDM_FRAMER_E1
  57 };
  58
  59 enum tdm_mode_t {
  60         TDM_INTERNAL_LOOPBACK,
  61         TDM_NORMAL
  62 };
  63
  64 struct si_mode_info {
  65         u8 simr_rfsd;
  66         u8 simr_tfsd;
  67         u8 simr_crt;
  68         u8 simr_sl;
  69         u8 simr_ce;
  70         u8 simr_fe;
  71         u8 simr_gm;
  72 };
  73
  74 struct ucc_tdm_info {
  75         struct ucc_fast_info uf_info;
  76         struct si_mode_info si_info;
  77 };
  78
  79 struct ucc_tdm {
  80         u16 tdm_port;           /* port for this tdm:TDMA,TDMB */
  81         u32 siram_entry_id;
  82         u16 __iomem *siram;
  83         struct si1 __iomem *si_regs;
  84         enum tdm_framer_t tdm_framer_type;
  85         enum tdm_mode_t tdm_mode;
  86         u8 num_of_ts;           /* the number of timeslots in this tdm frame */
  87         u32 tx_ts_mask;         /* tx time slot mask */
  88         u32 rx_ts_mask;         /* rx time slot mask */
  89 };
  90
  91 int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
  92                      struct ucc_tdm_info *ut_info);
  93 void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
  94 #endif