1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Internal header file for QE TDM mode routines. |
4 | * |
5 | * Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved. |
6 | * |
7 | * Authors: Zhao Qiang <qiang.zhao@nxp.com> |
8 | */ |
9 | |
10 | #ifndef _QE_TDM_H_ |
11 | #define _QE_TDM_H_ |
12 | |
13 | #include <linux/list.h> |
14 | #include <linux/types.h> |
15 | |
16 | #include <soc/fsl/qe/immap_qe.h> |
17 | #include <soc/fsl/qe/qe.h> |
18 | |
19 | #include <soc/fsl/qe/ucc.h> |
20 | #include <soc/fsl/qe/ucc_fast.h> |
21 | |
22 | struct device_node; |
23 | |
24 | /* SI RAM entries */ |
25 | #define SIR_LAST 0x0001 |
26 | #define SIR_BYTE 0x0002 |
27 | #define SIR_CNT(x) ((x) << 2) |
28 | #define SIR_CSEL(x) ((x) << 5) |
29 | #define SIR_SGS 0x0200 |
30 | #define SIR_SWTR 0x4000 |
31 | #define SIR_MCC 0x8000 |
32 | #define SIR_IDLE 0 |
33 | |
34 | /* SIxMR fields */ |
35 | #define SIMR_SAD(x) ((x) << 12) |
36 | #define SIMR_SDM_NORMAL 0x0000 |
37 | #define SIMR_SDM_INTERNAL_LOOPBACK 0x0800 |
38 | #define SIMR_SDM_MASK 0x0c00 |
39 | #define SIMR_CRT 0x0040 |
40 | #define SIMR_SL 0x0020 |
41 | #define SIMR_CE 0x0010 |
42 | #define SIMR_FE 0x0008 |
43 | #define SIMR_GM 0x0004 |
44 | #define SIMR_TFSD(n) (n) |
45 | #define SIMR_RFSD(n) ((n) << 8) |
46 | |
47 | enum tdm_ts_t { |
48 | TDM_TX_TS, |
49 | TDM_RX_TS |
50 | }; |
51 | |
52 | enum tdm_framer_t { |
53 | TDM_FRAMER_T1, |
54 | TDM_FRAMER_E1 |
55 | }; |
56 | |
57 | enum tdm_mode_t { |
58 | TDM_INTERNAL_LOOPBACK, |
59 | TDM_NORMAL |
60 | }; |
61 | |
62 | struct si_mode_info { |
63 | u8 simr_rfsd; |
64 | u8 simr_tfsd; |
65 | u8 simr_crt; |
66 | u8 simr_sl; |
67 | u8 simr_ce; |
68 | u8 simr_fe; |
69 | u8 simr_gm; |
70 | }; |
71 | |
72 | struct ucc_tdm_info { |
73 | struct ucc_fast_info uf_info; |
74 | struct si_mode_info si_info; |
75 | }; |
76 | |
77 | struct ucc_tdm { |
78 | u16 tdm_port; /* port for this tdm:TDMA,TDMB */ |
79 | u32 siram_entry_id; |
80 | u16 __iomem *siram; |
81 | struct si1 __iomem *si_regs; |
82 | enum tdm_framer_t tdm_framer_type; |
83 | enum tdm_mode_t tdm_mode; |
84 | u8 num_of_ts; /* the number of timeslots in this tdm frame */ |
85 | u32 tx_ts_mask; /* tx time slot mask */ |
86 | u32 rx_ts_mask; /* rx time slot mask */ |
87 | }; |
88 | |
89 | int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm, |
90 | struct ucc_tdm_info *ut_info); |
91 | void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info); |
92 | #endif |
93 | |