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 95