1 #ifndef __SOUND_FSI_H 2 #define __SOUND_FSI_H 3 4 /* 5 * Fifo-attached Serial Interface (FSI) support for SH7724 6 * 7 * Copyright (C) 2009 Renesas Solutions Corp. 8 * Kuninori Morimoto <morimoto.kuninori@renesas.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 15 #define FSI_PORT_A 0 16 #define FSI_PORT_B 1 17 18 #include <linux/clk.h> 19 #include <sound/soc.h> 20 21 /* 22 * flags format 23 * 24 * 0x00000CBA 25 * 26 * A: inversion 27 * B: format mode 28 * C: chip specific 29 * D: clock selecter if master mode 30 */ 31 32 /* A: clock inversion */ 33 #define SH_FSI_INVERSION_MASK 0x0000000F 34 #define SH_FSI_LRM_INV (1 << 0) 35 #define SH_FSI_BRM_INV (1 << 1) 36 #define SH_FSI_LRS_INV (1 << 2) 37 #define SH_FSI_BRS_INV (1 << 3) 38 39 /* B: format mode */ 40 #define SH_FSI_FMT_MASK 0x000000F0 41 #define SH_FSI_FMT_DAI (0 << 4) 42 #define SH_FSI_FMT_SPDIF (1 << 4) 43 44 /* C: chip specific */ 45 #define SH_FSI_OPTION_MASK 0x00000F00 46 #define SH_FSI_ENABLE_STREAM_MODE (1 << 8) /* for 16bit data */ 47 48 /* D: clock selecter if master mode */ 49 #define SH_FSI_CLK_MASK 0x0000F000 50 #define SH_FSI_CLK_EXTERNAL (0 << 12) 51 #define SH_FSI_CLK_CPG (1 << 12) /* FSIxCK + FSI-DIV */ 52 53 /* 54 * set_rate return value 55 * 56 * see ACKMD/BPFMD on 57 * ACK_MD (FSI2) 58 * CKG1 (FSI) 59 * 60 * err : return value < 0 61 * no change : return value == 0 62 * change xMD : return value > 0 63 * 64 * 0x-00000AB 65 * 66 * A: ACKMD value 67 * B: BPFMD value 68 */ 69 70 #define SH_FSI_ACKMD_MASK (0xF << 0) 71 #define SH_FSI_ACKMD_512 (1 << 0) 72 #define SH_FSI_ACKMD_256 (2 << 0) 73 #define SH_FSI_ACKMD_128 (3 << 0) 74 #define SH_FSI_ACKMD_64 (4 << 0) 75 #define SH_FSI_ACKMD_32 (5 << 0) 76 77 #define SH_FSI_BPFMD_MASK (0xF << 4) 78 #define SH_FSI_BPFMD_512 (1 << 4) 79 #define SH_FSI_BPFMD_256 (2 << 4) 80 #define SH_FSI_BPFMD_128 (3 << 4) 81 #define SH_FSI_BPFMD_64 (4 << 4) 82 #define SH_FSI_BPFMD_32 (5 << 4) 83 #define SH_FSI_BPFMD_16 (6 << 4) 84 85 struct sh_fsi_port_info { 86 unsigned long flags; 87 int tx_id; 88 int rx_id; 89 int (*set_rate)(struct device *dev, int rate, int enable); 90 }; 91 92 struct sh_fsi_platform_info { 93 struct sh_fsi_port_info port_a; 94 struct sh_fsi_port_info port_b; 95 }; 96 97 #endif /* __SOUND_FSI_H */ 98