Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Fifo-attached Serial Interface (FSI) support for SH7724 |
| 3 | * |
| 4 | * Copyright (C) 2009 Renesas Solutions Corp. |
| 5 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> |
| 6 | * |
| 7 | * Based on ssi.c |
| 8 | * Copyright (c) 2007 Manuel Lauss <mano@roarinelk.homelinux.net> |
| 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 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 15 | #include <linux/delay.h> |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 16 | #include <linux/pm_runtime.h> |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 17 | #include <linux/io.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 18 | #include <linux/slab.h> |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 19 | #include <sound/soc.h> |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 20 | #include <sound/sh_fsi.h> |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 21 | |
| 22 | #define DO_FMT 0x0000 |
| 23 | #define DOFF_CTL 0x0004 |
| 24 | #define DOFF_ST 0x0008 |
| 25 | #define DI_FMT 0x000C |
| 26 | #define DIFF_CTL 0x0010 |
| 27 | #define DIFF_ST 0x0014 |
| 28 | #define CKG1 0x0018 |
| 29 | #define CKG2 0x001C |
| 30 | #define DIDT 0x0020 |
| 31 | #define DODT 0x0024 |
| 32 | #define MUTE_ST 0x0028 |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 33 | #define OUT_SEL 0x0030 |
| 34 | #define REG_END OUT_SEL |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 35 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 36 | #define A_MST_CTLR 0x0180 |
| 37 | #define B_MST_CTLR 0x01A0 |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 38 | #define CPU_INT_ST 0x01F4 |
| 39 | #define CPU_IEMSK 0x01F8 |
| 40 | #define CPU_IMSK 0x01FC |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 41 | #define INT_ST 0x0200 |
| 42 | #define IEMSK 0x0204 |
| 43 | #define IMSK 0x0208 |
| 44 | #define MUTE 0x020C |
| 45 | #define CLK_RST 0x0210 |
| 46 | #define SOFT_RST 0x0214 |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 47 | #define FIFO_SZ 0x0218 |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 48 | #define MREG_START A_MST_CTLR |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 49 | #define MREG_END FIFO_SZ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 50 | |
| 51 | /* DO_FMT */ |
| 52 | /* DI_FMT */ |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 53 | #define CR_MONO (0x0 << 4) |
| 54 | #define CR_MONO_D (0x1 << 4) |
| 55 | #define CR_PCM (0x2 << 4) |
| 56 | #define CR_I2S (0x3 << 4) |
| 57 | #define CR_TDM (0x4 << 4) |
| 58 | #define CR_TDM_D (0x5 << 4) |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 59 | #define CR_SPDIF 0x00100120 |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 60 | |
| 61 | /* DOFF_CTL */ |
| 62 | /* DIFF_CTL */ |
| 63 | #define IRQ_HALF 0x00100000 |
| 64 | #define FIFO_CLR 0x00000001 |
| 65 | |
| 66 | /* DOFF_ST */ |
| 67 | #define ERR_OVER 0x00000010 |
| 68 | #define ERR_UNDER 0x00000001 |
Kuninori Morimoto | 59c3b00 | 2009-12-28 14:09:16 +0900 | [diff] [blame] | 69 | #define ST_ERR (ERR_OVER | ERR_UNDER) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 70 | |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 71 | /* CKG1 */ |
| 72 | #define ACKMD_MASK 0x00007000 |
| 73 | #define BPFMD_MASK 0x00000700 |
| 74 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 75 | /* A/B MST_CTLR */ |
| 76 | #define BP (1 << 4) /* Fix the signal of Biphase output */ |
| 77 | #define SE (1 << 0) /* Fix the master clock */ |
| 78 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 79 | /* CLK_RST */ |
| 80 | #define B_CLK 0x00000010 |
| 81 | #define A_CLK 0x00000001 |
| 82 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 83 | /* IO SHIFT / MACRO */ |
| 84 | #define BI_SHIFT 12 |
| 85 | #define BO_SHIFT 8 |
| 86 | #define AI_SHIFT 4 |
| 87 | #define AO_SHIFT 0 |
| 88 | #define AB_IO(param, shift) (param << shift) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 89 | |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 90 | /* SOFT_RST */ |
| 91 | #define PBSR (1 << 12) /* Port B Software Reset */ |
| 92 | #define PASR (1 << 8) /* Port A Software Reset */ |
| 93 | #define IR (1 << 4) /* Interrupt Reset */ |
| 94 | #define FSISR (1 << 0) /* Software Reset */ |
| 95 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 96 | /* FIFO_SZ */ |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 97 | #define FIFO_SZ_MASK 0x7 |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 98 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 99 | #define FSI_RATES SNDRV_PCM_RATE_8000_96000 |
| 100 | |
| 101 | #define FSI_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) |
| 102 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 103 | /* |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 104 | * FSI driver use below type name for variable |
| 105 | * |
| 106 | * xxx_len : data length |
| 107 | * xxx_width : data width |
| 108 | * xxx_offset : data offset |
| 109 | * xxx_num : number of data |
| 110 | */ |
| 111 | |
| 112 | /* |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 113 | * struct |
| 114 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 115 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 116 | struct fsi_stream { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 117 | struct snd_pcm_substream *substream; |
| 118 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 119 | int fifo_max_num; |
| 120 | int chan_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 121 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 122 | int buff_offset; |
| 123 | int buff_len; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 124 | int period_len; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 125 | int period_num; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 126 | }; |
| 127 | |
| 128 | struct fsi_priv { |
| 129 | void __iomem *base; |
| 130 | struct fsi_master *master; |
| 131 | |
| 132 | struct fsi_stream playback; |
| 133 | struct fsi_stream capture; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 134 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 135 | long rate; |
| 136 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 137 | u32 mst_ctrl; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 138 | }; |
| 139 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 140 | struct fsi_core { |
| 141 | int ver; |
| 142 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 143 | u32 int_st; |
| 144 | u32 iemsk; |
| 145 | u32 imsk; |
| 146 | }; |
| 147 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 148 | struct fsi_master { |
| 149 | void __iomem *base; |
| 150 | int irq; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 151 | struct fsi_priv fsia; |
| 152 | struct fsi_priv fsib; |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 153 | struct fsi_core *core; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 154 | struct sh_fsi_platform_info *info; |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 155 | spinlock_t lock; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 156 | }; |
| 157 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 158 | /* |
| 159 | * basic read write function |
| 160 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 161 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 162 | static void __fsi_reg_write(u32 reg, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 163 | { |
| 164 | /* valid data area is 24bit */ |
| 165 | data &= 0x00ffffff; |
| 166 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 167 | __raw_writel(data, reg); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | static u32 __fsi_reg_read(u32 reg) |
| 171 | { |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 172 | return __raw_readl(reg); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 173 | } |
| 174 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 175 | static void __fsi_reg_mask_set(u32 reg, u32 mask, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 176 | { |
| 177 | u32 val = __fsi_reg_read(reg); |
| 178 | |
| 179 | val &= ~mask; |
| 180 | val |= data & mask; |
| 181 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 182 | __fsi_reg_write(reg, val); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 183 | } |
| 184 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 185 | static void fsi_reg_write(struct fsi_priv *fsi, u32 reg, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 186 | { |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 187 | if (reg > REG_END) { |
| 188 | pr_err("fsi: register access err (%s)\n", __func__); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 189 | return; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 190 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 191 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 192 | __fsi_reg_write((u32)(fsi->base + reg), data); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | static u32 fsi_reg_read(struct fsi_priv *fsi, u32 reg) |
| 196 | { |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 197 | if (reg > REG_END) { |
| 198 | pr_err("fsi: register access err (%s)\n", __func__); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 199 | return 0; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 200 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 201 | |
| 202 | return __fsi_reg_read((u32)(fsi->base + reg)); |
| 203 | } |
| 204 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 205 | static void fsi_reg_mask_set(struct fsi_priv *fsi, u32 reg, u32 mask, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 206 | { |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 207 | if (reg > REG_END) { |
| 208 | pr_err("fsi: register access err (%s)\n", __func__); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 209 | return; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 210 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 211 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 212 | __fsi_reg_mask_set((u32)(fsi->base + reg), mask, data); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 213 | } |
| 214 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 215 | static void fsi_master_write(struct fsi_master *master, u32 reg, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 216 | { |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 217 | unsigned long flags; |
| 218 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 219 | if ((reg < MREG_START) || |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 220 | (reg > MREG_END)) { |
| 221 | pr_err("fsi: register access err (%s)\n", __func__); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 222 | return; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 223 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 224 | |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 225 | spin_lock_irqsave(&master->lock, flags); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 226 | __fsi_reg_write((u32)(master->base + reg), data); |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 227 | spin_unlock_irqrestore(&master->lock, flags); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 228 | } |
| 229 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 230 | static u32 fsi_master_read(struct fsi_master *master, u32 reg) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 231 | { |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 232 | u32 ret; |
| 233 | unsigned long flags; |
| 234 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 235 | if ((reg < MREG_START) || |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 236 | (reg > MREG_END)) { |
| 237 | pr_err("fsi: register access err (%s)\n", __func__); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 238 | return 0; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 239 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 240 | |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 241 | spin_lock_irqsave(&master->lock, flags); |
| 242 | ret = __fsi_reg_read((u32)(master->base + reg)); |
| 243 | spin_unlock_irqrestore(&master->lock, flags); |
| 244 | |
| 245 | return ret; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 246 | } |
| 247 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 248 | static void fsi_master_mask_set(struct fsi_master *master, |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 249 | u32 reg, u32 mask, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 250 | { |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 251 | unsigned long flags; |
| 252 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 253 | if ((reg < MREG_START) || |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 254 | (reg > MREG_END)) { |
| 255 | pr_err("fsi: register access err (%s)\n", __func__); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 256 | return; |
Kuninori Morimoto | d785414 | 2010-07-13 12:13:09 +0900 | [diff] [blame] | 257 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 258 | |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 259 | spin_lock_irqsave(&master->lock, flags); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 260 | __fsi_reg_mask_set((u32)(master->base + reg), mask, data); |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 261 | spin_unlock_irqrestore(&master->lock, flags); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 262 | } |
| 263 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 264 | /* |
| 265 | * basic function |
| 266 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 267 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 268 | static struct fsi_master *fsi_get_master(struct fsi_priv *fsi) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 269 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 270 | return fsi->master; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | static int fsi_is_port_a(struct fsi_priv *fsi) |
| 274 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 275 | return fsi->master->base == fsi->base; |
| 276 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 277 | |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 278 | static struct snd_soc_dai *fsi_get_dai(struct snd_pcm_substream *substream) |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 279 | { |
| 280 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 281 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 282 | return rtd->cpu_dai; |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream) |
| 286 | { |
| 287 | struct snd_soc_dai *dai = fsi_get_dai(substream); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 288 | struct fsi_master *master = snd_soc_dai_get_drvdata(dai); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 289 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 290 | if (dai->id == 0) |
| 291 | return &master->fsia; |
| 292 | else |
| 293 | return &master->fsib; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | static u32 fsi_get_info_flags(struct fsi_priv *fsi) |
| 297 | { |
| 298 | int is_porta = fsi_is_port_a(fsi); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 299 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 300 | |
| 301 | return is_porta ? master->info->porta_flags : |
| 302 | master->info->portb_flags; |
| 303 | } |
| 304 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 305 | static inline int fsi_stream_is_play(int stream) |
| 306 | { |
| 307 | return stream == SNDRV_PCM_STREAM_PLAYBACK; |
| 308 | } |
| 309 | |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 310 | static inline int fsi_is_play(struct snd_pcm_substream *substream) |
| 311 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 312 | return fsi_stream_is_play(substream->stream); |
| 313 | } |
| 314 | |
| 315 | static inline struct fsi_stream *fsi_get_stream(struct fsi_priv *fsi, |
| 316 | int is_play) |
| 317 | { |
| 318 | return is_play ? &fsi->playback : &fsi->capture; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 319 | } |
| 320 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 321 | static int fsi_is_master_mode(struct fsi_priv *fsi, int is_play) |
| 322 | { |
| 323 | u32 mode; |
| 324 | u32 flags = fsi_get_info_flags(fsi); |
| 325 | |
| 326 | mode = is_play ? SH_FSI_OUT_SLAVE_MODE : SH_FSI_IN_SLAVE_MODE; |
| 327 | |
| 328 | /* return |
| 329 | * 1 : master mode |
| 330 | * 0 : slave mode |
| 331 | */ |
| 332 | |
| 333 | return (mode & flags) != mode; |
| 334 | } |
| 335 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 336 | static u32 fsi_get_port_shift(struct fsi_priv *fsi, int is_play) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 337 | { |
| 338 | int is_porta = fsi_is_port_a(fsi); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 339 | u32 shift; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 340 | |
| 341 | if (is_porta) |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 342 | shift = is_play ? AO_SHIFT : AI_SHIFT; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 343 | else |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 344 | shift = is_play ? BO_SHIFT : BI_SHIFT; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 345 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 346 | return shift; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | static void fsi_stream_push(struct fsi_priv *fsi, |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 350 | int is_play, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 351 | struct snd_pcm_substream *substream, |
| 352 | u32 buffer_len, |
| 353 | u32 period_len) |
| 354 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 355 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 356 | |
| 357 | io->substream = substream; |
| 358 | io->buff_len = buffer_len; |
| 359 | io->buff_offset = 0; |
| 360 | io->period_len = period_len; |
| 361 | io->period_num = 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 362 | } |
| 363 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 364 | static void fsi_stream_pop(struct fsi_priv *fsi, int is_play) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 365 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 366 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 367 | |
| 368 | io->substream = NULL; |
| 369 | io->buff_len = 0; |
| 370 | io->buff_offset = 0; |
| 371 | io->period_len = 0; |
| 372 | io->period_num = 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 373 | } |
| 374 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 375 | static int fsi_get_fifo_data_num(struct fsi_priv *fsi, int is_play) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 376 | { |
| 377 | u32 status; |
| 378 | u32 reg = is_play ? DOFF_ST : DIFF_ST; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 379 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 380 | int data_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 381 | |
| 382 | status = fsi_reg_read(fsi, reg); |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 383 | data_num = 0x1ff & (status >> 8); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 384 | data_num *= io->chan_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 385 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 386 | return data_num; |
| 387 | } |
| 388 | |
| 389 | static int fsi_len2num(int len, int width) |
| 390 | { |
| 391 | return len / width; |
| 392 | } |
| 393 | |
| 394 | #define fsi_num2offset(a, b) fsi_num2len(a, b) |
| 395 | static int fsi_num2len(int num, int width) |
| 396 | { |
| 397 | return num * width; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 398 | } |
| 399 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 400 | static int fsi_get_frame_width(struct fsi_priv *fsi, int is_play) |
Kuninori Morimoto | cca1b23 | 2010-10-12 11:39:25 +0900 | [diff] [blame] | 401 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 402 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 403 | struct snd_pcm_substream *substream = io->substream; |
Kuninori Morimoto | cca1b23 | 2010-10-12 11:39:25 +0900 | [diff] [blame] | 404 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 405 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 406 | return frames_to_bytes(runtime, 1) / io->chan_num; |
Kuninori Morimoto | cca1b23 | 2010-10-12 11:39:25 +0900 | [diff] [blame] | 407 | } |
| 408 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 409 | /* |
| 410 | * dma function |
| 411 | */ |
| 412 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 413 | static u8 *fsi_dma_get_area(struct fsi_priv *fsi, int stream) |
Kuninori Morimoto | c79eab3 | 2010-09-17 13:48:05 +0900 | [diff] [blame] | 414 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 415 | int is_play = fsi_stream_is_play(stream); |
| 416 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 417 | |
| 418 | return io->substream->runtime->dma_area + io->buff_offset; |
Kuninori Morimoto | c79eab3 | 2010-09-17 13:48:05 +0900 | [diff] [blame] | 419 | } |
| 420 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 421 | static void fsi_dma_soft_push16(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 422 | { |
| 423 | u16 *start; |
| 424 | int i; |
| 425 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 426 | start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 427 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 428 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 429 | fsi_reg_write(fsi, DODT, ((u32)*(start + i) << 8)); |
| 430 | } |
| 431 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 432 | static void fsi_dma_soft_pop16(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 433 | { |
| 434 | u16 *start; |
| 435 | int i; |
| 436 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 437 | start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); |
| 438 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 439 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 440 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 441 | *(start + i) = (u16)(fsi_reg_read(fsi, DIDT) >> 8); |
| 442 | } |
| 443 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 444 | static void fsi_dma_soft_push32(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 445 | { |
| 446 | u32 *start; |
| 447 | int i; |
| 448 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 449 | start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); |
| 450 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 451 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 452 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 453 | fsi_reg_write(fsi, DODT, *(start + i)); |
| 454 | } |
| 455 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 456 | static void fsi_dma_soft_pop32(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 457 | { |
| 458 | u32 *start; |
| 459 | int i; |
| 460 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 461 | start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 462 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 463 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 464 | *(start + i) = fsi_reg_read(fsi, DIDT); |
| 465 | } |
| 466 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 467 | /* |
| 468 | * irq function |
| 469 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 470 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 471 | static void fsi_irq_enable(struct fsi_priv *fsi, int is_play) |
| 472 | { |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 473 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, is_play)); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 474 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 475 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 476 | fsi_master_mask_set(master, master->core->imsk, data, data); |
| 477 | fsi_master_mask_set(master, master->core->iemsk, data, data); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | static void fsi_irq_disable(struct fsi_priv *fsi, int is_play) |
| 481 | { |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 482 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, is_play)); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 483 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 484 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 485 | fsi_master_mask_set(master, master->core->imsk, data, 0); |
| 486 | fsi_master_mask_set(master, master->core->iemsk, data, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 487 | } |
| 488 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 489 | static u32 fsi_irq_get_status(struct fsi_master *master) |
| 490 | { |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 491 | return fsi_master_read(master, master->core->int_st); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 492 | } |
| 493 | |
| 494 | static void fsi_irq_clear_all_status(struct fsi_master *master) |
| 495 | { |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 496 | fsi_master_write(master, master->core->int_st, 0); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | static void fsi_irq_clear_status(struct fsi_priv *fsi) |
| 500 | { |
| 501 | u32 data = 0; |
| 502 | struct fsi_master *master = fsi_get_master(fsi); |
| 503 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 504 | data |= AB_IO(1, fsi_get_port_shift(fsi, 0)); |
| 505 | data |= AB_IO(1, fsi_get_port_shift(fsi, 1)); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 506 | |
| 507 | /* clear interrupt factor */ |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 508 | fsi_master_mask_set(master, master->core->int_st, data, 0); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 509 | } |
| 510 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 511 | /* |
| 512 | * SPDIF master clock function |
| 513 | * |
| 514 | * These functions are used later FSI2 |
| 515 | */ |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 516 | static void fsi_spdif_clk_ctrl(struct fsi_priv *fsi, int enable) |
| 517 | { |
| 518 | struct fsi_master *master = fsi_get_master(fsi); |
| 519 | u32 val = BP | SE; |
| 520 | |
| 521 | if (master->core->ver < 2) { |
| 522 | pr_err("fsi: register access err (%s)\n", __func__); |
| 523 | return; |
| 524 | } |
| 525 | |
| 526 | if (enable) |
| 527 | fsi_master_mask_set(master, fsi->mst_ctrl, val, val); |
| 528 | else |
| 529 | fsi_master_mask_set(master, fsi->mst_ctrl, val, 0); |
| 530 | } |
| 531 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 532 | /* |
| 533 | * ctrl function |
| 534 | */ |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 535 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 536 | static void fsi_clk_ctrl(struct fsi_priv *fsi, int enable) |
| 537 | { |
| 538 | u32 val = fsi_is_port_a(fsi) ? (1 << 0) : (1 << 4); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 539 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 540 | |
| 541 | if (enable) |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 542 | fsi_master_mask_set(master, CLK_RST, val, val); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 543 | else |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 544 | fsi_master_mask_set(master, CLK_RST, val, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 545 | } |
| 546 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 547 | static void fsi_fifo_init(struct fsi_priv *fsi, |
| 548 | int is_play, |
| 549 | struct snd_soc_dai *dai) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 550 | { |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 551 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 552 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 553 | u32 ctrl, shift, i; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 554 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 555 | /* get on-chip RAM capacity */ |
| 556 | shift = fsi_master_read(master, FIFO_SZ); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 557 | shift >>= fsi_get_port_shift(fsi, is_play); |
| 558 | shift &= FIFO_SZ_MASK; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 559 | io->fifo_max_num = 256 << shift; |
| 560 | dev_dbg(dai->dev, "fifo = %d words\n", io->fifo_max_num); |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 561 | |
| 562 | /* |
| 563 | * The maximum number of sample data varies depending |
| 564 | * on the number of channels selected for the format. |
| 565 | * |
| 566 | * FIFOs are used in 4-channel units in 3-channel mode |
| 567 | * and in 8-channel units in 5- to 7-channel mode |
| 568 | * meaning that more FIFOs than the required size of DPRAM |
| 569 | * are used. |
| 570 | * |
| 571 | * ex) if 256 words of DP-RAM is connected |
| 572 | * 1 channel: 256 (256 x 1 = 256) |
| 573 | * 2 channels: 128 (128 x 2 = 256) |
| 574 | * 3 channels: 64 ( 64 x 3 = 192) |
| 575 | * 4 channels: 64 ( 64 x 4 = 256) |
| 576 | * 5 channels: 32 ( 32 x 5 = 160) |
| 577 | * 6 channels: 32 ( 32 x 6 = 192) |
| 578 | * 7 channels: 32 ( 32 x 7 = 224) |
| 579 | * 8 channels: 32 ( 32 x 8 = 256) |
| 580 | */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 581 | for (i = 1; i < io->chan_num; i <<= 1) |
| 582 | io->fifo_max_num >>= 1; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 583 | dev_dbg(dai->dev, "%d channel %d store\n", |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 584 | io->chan_num, io->fifo_max_num); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 585 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 586 | ctrl = is_play ? DOFF_CTL : DIFF_CTL; |
| 587 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 588 | /* set interrupt generation factor */ |
| 589 | fsi_reg_write(fsi, ctrl, IRQ_HALF); |
| 590 | |
| 591 | /* clear FIFO */ |
| 592 | fsi_reg_mask_set(fsi, ctrl, FIFO_CLR, FIFO_CLR); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 593 | } |
| 594 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 595 | static void fsi_soft_all_reset(struct fsi_master *master) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 596 | { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 597 | /* port AB reset */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 598 | fsi_master_mask_set(master, SOFT_RST, PASR | PBSR, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 599 | mdelay(10); |
| 600 | |
| 601 | /* soft reset */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 602 | fsi_master_mask_set(master, SOFT_RST, FSISR, 0); |
| 603 | fsi_master_mask_set(master, SOFT_RST, FSISR, FSISR); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 604 | mdelay(10); |
| 605 | } |
| 606 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 607 | static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int stream) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 608 | { |
| 609 | struct snd_pcm_runtime *runtime; |
| 610 | struct snd_pcm_substream *substream = NULL; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 611 | int is_play = fsi_stream_is_play(stream); |
| 612 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 613 | u32 status_reg = is_play ? DOFF_ST : DIFF_ST; |
| 614 | int data_residue_num; |
| 615 | int data_num; |
| 616 | int data_num_max; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 617 | int ch_width; |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 618 | int over_period; |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 619 | void (*fn)(struct fsi_priv *fsi, int size); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 620 | |
| 621 | if (!fsi || |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 622 | !io->substream || |
| 623 | !io->substream->runtime) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 624 | return -EINVAL; |
| 625 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 626 | over_period = 0; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 627 | substream = io->substream; |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 628 | runtime = substream->runtime; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 629 | |
| 630 | /* FSI FIFO has limit. |
| 631 | * So, this driver can not send periods data at a time |
| 632 | */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 633 | if (io->buff_offset >= |
| 634 | fsi_num2offset(io->period_num + 1, io->period_len)) { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 635 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 636 | over_period = 1; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 637 | io->period_num = (io->period_num + 1) % runtime->periods; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 638 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 639 | if (0 == io->period_num) |
| 640 | io->buff_offset = 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 641 | } |
| 642 | |
| 643 | /* get 1 channel data width */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 644 | ch_width = fsi_get_frame_width(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 645 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 646 | /* get residue data number of alsa */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 647 | data_residue_num = fsi_len2num(io->buff_len - io->buff_offset, |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 648 | ch_width); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 649 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 650 | if (is_play) { |
| 651 | /* |
| 652 | * for play-back |
| 653 | * |
| 654 | * data_num_max : number of FSI fifo free space |
| 655 | * data_num : number of ALSA residue data |
| 656 | */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 657 | data_num_max = io->fifo_max_num * io->chan_num; |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 658 | data_num_max -= fsi_get_fifo_data_num(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 659 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 660 | data_num = data_residue_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 661 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 662 | switch (ch_width) { |
| 663 | case 2: |
| 664 | fn = fsi_dma_soft_push16; |
| 665 | break; |
| 666 | case 4: |
| 667 | fn = fsi_dma_soft_push32; |
| 668 | break; |
| 669 | default: |
| 670 | return -EINVAL; |
| 671 | } |
| 672 | } else { |
| 673 | /* |
| 674 | * for capture |
| 675 | * |
| 676 | * data_num_max : number of ALSA free space |
| 677 | * data_num : number of data in FSI fifo |
| 678 | */ |
| 679 | data_num_max = data_residue_num; |
| 680 | data_num = fsi_get_fifo_data_num(fsi, is_play); |
| 681 | |
| 682 | switch (ch_width) { |
| 683 | case 2: |
| 684 | fn = fsi_dma_soft_pop16; |
| 685 | break; |
| 686 | case 4: |
| 687 | fn = fsi_dma_soft_pop32; |
| 688 | break; |
| 689 | default: |
| 690 | return -EINVAL; |
| 691 | } |
Kuninori Morimoto | 9ddc9aa | 2009-10-30 12:02:39 +0900 | [diff] [blame] | 692 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 693 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 694 | data_num = min(data_num, data_num_max); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 695 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 696 | fn(fsi, data_num); |
| 697 | |
| 698 | /* update buff_offset */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 699 | io->buff_offset += fsi_num2offset(data_num, ch_width); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 700 | |
| 701 | /* check fifo status */ |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 702 | if (!startup) { |
Kuninori Morimoto | 59c3b00 | 2009-12-28 14:09:16 +0900 | [diff] [blame] | 703 | struct snd_soc_dai *dai = fsi_get_dai(substream); |
Kuninori Morimoto | 75eda968 | 2010-10-12 11:40:14 +0900 | [diff] [blame] | 704 | u32 status = fsi_reg_read(fsi, status_reg); |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 705 | |
| 706 | if (status & ERR_OVER) |
| 707 | dev_err(dai->dev, "over run\n"); |
| 708 | if (status & ERR_UNDER) |
| 709 | dev_err(dai->dev, "under run\n"); |
Kuninori Morimoto | 59c3b00 | 2009-12-28 14:09:16 +0900 | [diff] [blame] | 710 | } |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 711 | fsi_reg_write(fsi, status_reg, 0); |
Kuninori Morimoto | 59c3b00 | 2009-12-28 14:09:16 +0900 | [diff] [blame] | 712 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 713 | /* re-enable irq */ |
| 714 | fsi_irq_enable(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 715 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 716 | if (over_period) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 717 | snd_pcm_period_elapsed(substream); |
| 718 | |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 719 | return 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 720 | } |
| 721 | |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 722 | static int fsi_data_pop(struct fsi_priv *fsi, int startup) |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 723 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 724 | return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_CAPTURE); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 725 | } |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 726 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 727 | static int fsi_data_push(struct fsi_priv *fsi, int startup) |
| 728 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 729 | return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_PLAYBACK); |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 730 | } |
| 731 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 732 | static irqreturn_t fsi_interrupt(int irq, void *data) |
| 733 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 734 | struct fsi_master *master = data; |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 735 | u32 int_st = fsi_irq_get_status(master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 736 | |
| 737 | /* clear irq status */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 738 | fsi_master_mask_set(master, SOFT_RST, IR, 0); |
| 739 | fsi_master_mask_set(master, SOFT_RST, IR, IR); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 740 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 741 | if (int_st & AB_IO(1, AO_SHIFT)) |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 742 | fsi_data_push(&master->fsia, 0); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 743 | if (int_st & AB_IO(1, BO_SHIFT)) |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 744 | fsi_data_push(&master->fsib, 0); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 745 | if (int_st & AB_IO(1, AI_SHIFT)) |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 746 | fsi_data_pop(&master->fsia, 0); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 747 | if (int_st & AB_IO(1, BI_SHIFT)) |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 748 | fsi_data_pop(&master->fsib, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 749 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 750 | fsi_irq_clear_all_status(master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 751 | |
| 752 | return IRQ_HANDLED; |
| 753 | } |
| 754 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 755 | /* |
| 756 | * dai ops |
| 757 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 758 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 759 | static int fsi_dai_startup(struct snd_pcm_substream *substream, |
| 760 | struct snd_soc_dai *dai) |
| 761 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 762 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 763 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 764 | struct fsi_stream *io; |
| 765 | u32 flags = fsi_get_info_flags(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 766 | u32 fmt; |
| 767 | u32 reg; |
| 768 | u32 data; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 769 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 770 | int is_master; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 771 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 772 | io = fsi_get_stream(fsi, is_play); |
| 773 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 774 | pm_runtime_get_sync(dai->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 775 | |
| 776 | /* CKG1 */ |
| 777 | data = is_play ? (1 << 0) : (1 << 4); |
| 778 | is_master = fsi_is_master_mode(fsi, is_play); |
| 779 | if (is_master) |
| 780 | fsi_reg_mask_set(fsi, CKG1, data, data); |
| 781 | else |
| 782 | fsi_reg_mask_set(fsi, CKG1, data, 0); |
| 783 | |
| 784 | /* clock inversion (CKG2) */ |
| 785 | data = 0; |
Kuninori Morimoto | b427b44 | 2010-07-13 12:01:15 +0900 | [diff] [blame] | 786 | if (SH_FSI_LRM_INV & flags) |
| 787 | data |= 1 << 12; |
| 788 | if (SH_FSI_BRM_INV & flags) |
| 789 | data |= 1 << 8; |
| 790 | if (SH_FSI_LRS_INV & flags) |
| 791 | data |= 1 << 4; |
| 792 | if (SH_FSI_BRS_INV & flags) |
| 793 | data |= 1 << 0; |
| 794 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 795 | fsi_reg_write(fsi, CKG2, data); |
| 796 | |
| 797 | /* do fmt, di fmt */ |
| 798 | data = 0; |
| 799 | reg = is_play ? DO_FMT : DI_FMT; |
| 800 | fmt = is_play ? SH_FSI_GET_OFMT(flags) : SH_FSI_GET_IFMT(flags); |
| 801 | switch (fmt) { |
| 802 | case SH_FSI_FMT_MONO: |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 803 | data = CR_MONO; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 804 | io->chan_num = 1; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 805 | break; |
| 806 | case SH_FSI_FMT_MONO_DELAY: |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 807 | data = CR_MONO_D; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 808 | io->chan_num = 1; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 809 | break; |
| 810 | case SH_FSI_FMT_PCM: |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 811 | data = CR_PCM; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 812 | io->chan_num = 2; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 813 | break; |
| 814 | case SH_FSI_FMT_I2S: |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 815 | data = CR_I2S; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 816 | io->chan_num = 2; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 817 | break; |
| 818 | case SH_FSI_FMT_TDM: |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 819 | io->chan_num = is_play ? |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 820 | SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 821 | data = CR_TDM | (io->chan_num - 1); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 822 | break; |
| 823 | case SH_FSI_FMT_TDM_DELAY: |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 824 | io->chan_num = is_play ? |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 825 | SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 826 | data = CR_TDM_D | (io->chan_num - 1); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 827 | break; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 828 | case SH_FSI_FMT_SPDIF: |
| 829 | if (master->core->ver < 2) { |
| 830 | dev_err(dai->dev, "This FSI can not use SPDIF\n"); |
| 831 | return -EINVAL; |
| 832 | } |
| 833 | data = CR_SPDIF; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 834 | io->chan_num = 2; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 835 | fsi_spdif_clk_ctrl(fsi, 1); |
| 836 | fsi_reg_mask_set(fsi, OUT_SEL, 0x0010, 0x0010); |
| 837 | break; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 838 | default: |
| 839 | dev_err(dai->dev, "unknown format.\n"); |
| 840 | return -EINVAL; |
| 841 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 842 | fsi_reg_write(fsi, reg, data); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 843 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 844 | /* irq clear */ |
| 845 | fsi_irq_disable(fsi, is_play); |
| 846 | fsi_irq_clear_status(fsi); |
| 847 | |
| 848 | /* fifo init */ |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 849 | fsi_fifo_init(fsi, is_play, dai); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 850 | |
Kuninori Morimoto | a68a3b4 | 2010-10-12 11:39:50 +0900 | [diff] [blame] | 851 | return 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 852 | } |
| 853 | |
| 854 | static void fsi_dai_shutdown(struct snd_pcm_substream *substream, |
| 855 | struct snd_soc_dai *dai) |
| 856 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 857 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 858 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 859 | struct fsi_master *master = fsi_get_master(fsi); |
| 860 | int (*set_rate)(struct device *dev, int is_porta, int rate, int enable); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 861 | |
| 862 | fsi_irq_disable(fsi, is_play); |
| 863 | fsi_clk_ctrl(fsi, 0); |
| 864 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 865 | set_rate = master->info->set_rate; |
| 866 | if (set_rate && fsi->rate) |
| 867 | set_rate(dai->dev, fsi_is_port_a(fsi), fsi->rate, 0); |
| 868 | fsi->rate = 0; |
| 869 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 870 | pm_runtime_put_sync(dai->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 871 | } |
| 872 | |
| 873 | static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd, |
| 874 | struct snd_soc_dai *dai) |
| 875 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 876 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 877 | struct snd_pcm_runtime *runtime = substream->runtime; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 878 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 879 | int ret = 0; |
| 880 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 881 | switch (cmd) { |
| 882 | case SNDRV_PCM_TRIGGER_START: |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 883 | fsi_stream_push(fsi, is_play, substream, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 884 | frames_to_bytes(runtime, runtime->buffer_size), |
| 885 | frames_to_bytes(runtime, runtime->period_size)); |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 886 | ret = is_play ? fsi_data_push(fsi, 1) : fsi_data_pop(fsi, 1); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 887 | break; |
| 888 | case SNDRV_PCM_TRIGGER_STOP: |
| 889 | fsi_irq_disable(fsi, is_play); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 890 | fsi_stream_pop(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 891 | break; |
| 892 | } |
| 893 | |
| 894 | return ret; |
| 895 | } |
| 896 | |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 897 | static int fsi_dai_hw_params(struct snd_pcm_substream *substream, |
| 898 | struct snd_pcm_hw_params *params, |
| 899 | struct snd_soc_dai *dai) |
| 900 | { |
| 901 | struct fsi_priv *fsi = fsi_get_priv(substream); |
| 902 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 903 | int (*set_rate)(struct device *dev, int is_porta, int rate, int enable); |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 904 | int fsi_ver = master->core->ver; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 905 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 906 | long rate = params_rate(params); |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 907 | int ret; |
| 908 | |
| 909 | /* if slave mode, set_rate is not needed */ |
| 910 | if (!fsi_is_master_mode(fsi, is_play)) |
| 911 | return 0; |
| 912 | |
| 913 | /* it is error if no set_rate */ |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 914 | set_rate = master->info->set_rate; |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 915 | if (!set_rate) |
| 916 | return -EIO; |
| 917 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame^] | 918 | ret = set_rate(dai->dev, fsi_is_port_a(fsi), rate, 1); |
| 919 | if (ret < 0) /* error */ |
| 920 | return ret; |
| 921 | |
| 922 | fsi->rate = rate; |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 923 | if (ret > 0) { |
| 924 | u32 data = 0; |
| 925 | |
| 926 | switch (ret & SH_FSI_ACKMD_MASK) { |
| 927 | default: |
| 928 | /* FALL THROUGH */ |
| 929 | case SH_FSI_ACKMD_512: |
| 930 | data |= (0x0 << 12); |
| 931 | break; |
| 932 | case SH_FSI_ACKMD_256: |
| 933 | data |= (0x1 << 12); |
| 934 | break; |
| 935 | case SH_FSI_ACKMD_128: |
| 936 | data |= (0x2 << 12); |
| 937 | break; |
| 938 | case SH_FSI_ACKMD_64: |
| 939 | data |= (0x3 << 12); |
| 940 | break; |
| 941 | case SH_FSI_ACKMD_32: |
| 942 | if (fsi_ver < 2) |
| 943 | dev_err(dai->dev, "unsupported ACKMD\n"); |
| 944 | else |
| 945 | data |= (0x4 << 12); |
| 946 | break; |
| 947 | } |
| 948 | |
| 949 | switch (ret & SH_FSI_BPFMD_MASK) { |
| 950 | default: |
| 951 | /* FALL THROUGH */ |
| 952 | case SH_FSI_BPFMD_32: |
| 953 | data |= (0x0 << 8); |
| 954 | break; |
| 955 | case SH_FSI_BPFMD_64: |
| 956 | data |= (0x1 << 8); |
| 957 | break; |
| 958 | case SH_FSI_BPFMD_128: |
| 959 | data |= (0x2 << 8); |
| 960 | break; |
| 961 | case SH_FSI_BPFMD_256: |
| 962 | data |= (0x3 << 8); |
| 963 | break; |
| 964 | case SH_FSI_BPFMD_512: |
| 965 | data |= (0x4 << 8); |
| 966 | break; |
| 967 | case SH_FSI_BPFMD_16: |
| 968 | if (fsi_ver < 2) |
| 969 | dev_err(dai->dev, "unsupported ACKMD\n"); |
| 970 | else |
| 971 | data |= (0x7 << 8); |
| 972 | break; |
| 973 | } |
| 974 | |
| 975 | fsi_reg_mask_set(fsi, CKG1, (ACKMD_MASK | BPFMD_MASK) , data); |
| 976 | udelay(10); |
| 977 | fsi_clk_ctrl(fsi, 1); |
| 978 | ret = 0; |
| 979 | } |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 980 | |
| 981 | return ret; |
| 982 | |
| 983 | } |
| 984 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 985 | static struct snd_soc_dai_ops fsi_dai_ops = { |
| 986 | .startup = fsi_dai_startup, |
| 987 | .shutdown = fsi_dai_shutdown, |
| 988 | .trigger = fsi_dai_trigger, |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 989 | .hw_params = fsi_dai_hw_params, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 990 | }; |
| 991 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 992 | /* |
| 993 | * pcm ops |
| 994 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 995 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 996 | static struct snd_pcm_hardware fsi_pcm_hardware = { |
| 997 | .info = SNDRV_PCM_INFO_INTERLEAVED | |
| 998 | SNDRV_PCM_INFO_MMAP | |
| 999 | SNDRV_PCM_INFO_MMAP_VALID | |
| 1000 | SNDRV_PCM_INFO_PAUSE, |
| 1001 | .formats = FSI_FMTS, |
| 1002 | .rates = FSI_RATES, |
| 1003 | .rate_min = 8000, |
| 1004 | .rate_max = 192000, |
| 1005 | .channels_min = 1, |
| 1006 | .channels_max = 2, |
| 1007 | .buffer_bytes_max = 64 * 1024, |
| 1008 | .period_bytes_min = 32, |
| 1009 | .period_bytes_max = 8192, |
| 1010 | .periods_min = 1, |
| 1011 | .periods_max = 32, |
| 1012 | .fifo_size = 256, |
| 1013 | }; |
| 1014 | |
| 1015 | static int fsi_pcm_open(struct snd_pcm_substream *substream) |
| 1016 | { |
| 1017 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1018 | int ret = 0; |
| 1019 | |
| 1020 | snd_soc_set_runtime_hwparams(substream, &fsi_pcm_hardware); |
| 1021 | |
| 1022 | ret = snd_pcm_hw_constraint_integer(runtime, |
| 1023 | SNDRV_PCM_HW_PARAM_PERIODS); |
| 1024 | |
| 1025 | return ret; |
| 1026 | } |
| 1027 | |
| 1028 | static int fsi_hw_params(struct snd_pcm_substream *substream, |
| 1029 | struct snd_pcm_hw_params *hw_params) |
| 1030 | { |
| 1031 | return snd_pcm_lib_malloc_pages(substream, |
| 1032 | params_buffer_bytes(hw_params)); |
| 1033 | } |
| 1034 | |
| 1035 | static int fsi_hw_free(struct snd_pcm_substream *substream) |
| 1036 | { |
| 1037 | return snd_pcm_lib_free_pages(substream); |
| 1038 | } |
| 1039 | |
| 1040 | static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream) |
| 1041 | { |
| 1042 | struct snd_pcm_runtime *runtime = substream->runtime; |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1043 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 1044 | struct fsi_stream *io = fsi_get_stream(fsi, fsi_is_play(substream)); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1045 | long location; |
| 1046 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 1047 | location = (io->buff_offset - 1); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1048 | if (location < 0) |
| 1049 | location = 0; |
| 1050 | |
| 1051 | return bytes_to_frames(runtime, location); |
| 1052 | } |
| 1053 | |
| 1054 | static struct snd_pcm_ops fsi_pcm_ops = { |
| 1055 | .open = fsi_pcm_open, |
| 1056 | .ioctl = snd_pcm_lib_ioctl, |
| 1057 | .hw_params = fsi_hw_params, |
| 1058 | .hw_free = fsi_hw_free, |
| 1059 | .pointer = fsi_pointer, |
| 1060 | }; |
| 1061 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1062 | /* |
| 1063 | * snd_soc_platform |
| 1064 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1065 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1066 | #define PREALLOC_BUFFER (32 * 1024) |
| 1067 | #define PREALLOC_BUFFER_MAX (32 * 1024) |
| 1068 | |
| 1069 | static void fsi_pcm_free(struct snd_pcm *pcm) |
| 1070 | { |
| 1071 | snd_pcm_lib_preallocate_free_for_all(pcm); |
| 1072 | } |
| 1073 | |
| 1074 | static int fsi_pcm_new(struct snd_card *card, |
| 1075 | struct snd_soc_dai *dai, |
| 1076 | struct snd_pcm *pcm) |
| 1077 | { |
| 1078 | /* |
| 1079 | * dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel |
| 1080 | * in MMAP mode (i.e. aplay -M) |
| 1081 | */ |
| 1082 | return snd_pcm_lib_preallocate_pages_for_all( |
| 1083 | pcm, |
| 1084 | SNDRV_DMA_TYPE_CONTINUOUS, |
| 1085 | snd_dma_continuous_data(GFP_KERNEL), |
| 1086 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); |
| 1087 | } |
| 1088 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1089 | /* |
| 1090 | * alsa struct |
| 1091 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1092 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1093 | static struct snd_soc_dai_driver fsi_soc_dai[] = { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1094 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1095 | .name = "fsia-dai", |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1096 | .playback = { |
| 1097 | .rates = FSI_RATES, |
| 1098 | .formats = FSI_FMTS, |
| 1099 | .channels_min = 1, |
| 1100 | .channels_max = 8, |
| 1101 | }, |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 1102 | .capture = { |
| 1103 | .rates = FSI_RATES, |
| 1104 | .formats = FSI_FMTS, |
| 1105 | .channels_min = 1, |
| 1106 | .channels_max = 8, |
| 1107 | }, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1108 | .ops = &fsi_dai_ops, |
| 1109 | }, |
| 1110 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1111 | .name = "fsib-dai", |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1112 | .playback = { |
| 1113 | .rates = FSI_RATES, |
| 1114 | .formats = FSI_FMTS, |
| 1115 | .channels_min = 1, |
| 1116 | .channels_max = 8, |
| 1117 | }, |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 1118 | .capture = { |
| 1119 | .rates = FSI_RATES, |
| 1120 | .formats = FSI_FMTS, |
| 1121 | .channels_min = 1, |
| 1122 | .channels_max = 8, |
| 1123 | }, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1124 | .ops = &fsi_dai_ops, |
| 1125 | }, |
| 1126 | }; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1127 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1128 | static struct snd_soc_platform_driver fsi_soc_platform = { |
| 1129 | .ops = &fsi_pcm_ops, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1130 | .pcm_new = fsi_pcm_new, |
| 1131 | .pcm_free = fsi_pcm_free, |
| 1132 | }; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1133 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1134 | /* |
| 1135 | * platform function |
| 1136 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1137 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1138 | static int fsi_probe(struct platform_device *pdev) |
| 1139 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1140 | struct fsi_master *master; |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1141 | const struct platform_device_id *id_entry; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1142 | struct resource *res; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1143 | unsigned int irq; |
| 1144 | int ret; |
| 1145 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1146 | id_entry = pdev->id_entry; |
| 1147 | if (!id_entry) { |
| 1148 | dev_err(&pdev->dev, "unknown fsi device\n"); |
| 1149 | return -ENODEV; |
| 1150 | } |
| 1151 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1152 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 1153 | irq = platform_get_irq(pdev, 0); |
Uwe Kleine-König | b6aa179 | 2009-12-16 17:10:09 +0100 | [diff] [blame] | 1154 | if (!res || (int)irq <= 0) { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1155 | dev_err(&pdev->dev, "Not enough FSI platform resources.\n"); |
| 1156 | ret = -ENODEV; |
| 1157 | goto exit; |
| 1158 | } |
| 1159 | |
| 1160 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
| 1161 | if (!master) { |
| 1162 | dev_err(&pdev->dev, "Could not allocate master\n"); |
| 1163 | ret = -ENOMEM; |
| 1164 | goto exit; |
| 1165 | } |
| 1166 | |
| 1167 | master->base = ioremap_nocache(res->start, resource_size(res)); |
| 1168 | if (!master->base) { |
| 1169 | ret = -ENXIO; |
| 1170 | dev_err(&pdev->dev, "Unable to ioremap FSI registers.\n"); |
| 1171 | goto exit_kfree; |
| 1172 | } |
| 1173 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1174 | /* master setting */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1175 | master->irq = irq; |
| 1176 | master->info = pdev->dev.platform_data; |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1177 | master->core = (struct fsi_core *)id_entry->driver_data; |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 1178 | spin_lock_init(&master->lock); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1179 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1180 | /* FSI A setting */ |
| 1181 | master->fsia.base = master->base; |
| 1182 | master->fsia.master = master; |
| 1183 | master->fsia.mst_ctrl = A_MST_CTLR; |
| 1184 | |
| 1185 | /* FSI B setting */ |
| 1186 | master->fsib.base = master->base + 0x40; |
| 1187 | master->fsib.master = master; |
| 1188 | master->fsib.mst_ctrl = B_MST_CTLR; |
| 1189 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1190 | pm_runtime_enable(&pdev->dev); |
| 1191 | pm_runtime_resume(&pdev->dev); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1192 | dev_set_drvdata(&pdev->dev, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1193 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1194 | fsi_soft_all_reset(master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1195 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1196 | ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED, |
| 1197 | id_entry->name, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1198 | if (ret) { |
| 1199 | dev_err(&pdev->dev, "irq request err\n"); |
Kuninori Morimoto | 9ddc9aa | 2009-10-30 12:02:39 +0900 | [diff] [blame] | 1200 | goto exit_iounmap; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1201 | } |
| 1202 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1203 | ret = snd_soc_register_platform(&pdev->dev, &fsi_soc_platform); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1204 | if (ret < 0) { |
| 1205 | dev_err(&pdev->dev, "cannot snd soc register\n"); |
| 1206 | goto exit_free_irq; |
| 1207 | } |
| 1208 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1209 | return snd_soc_register_dais(&pdev->dev, fsi_soc_dai, ARRAY_SIZE(fsi_soc_dai)); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1210 | |
| 1211 | exit_free_irq: |
| 1212 | free_irq(irq, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1213 | exit_iounmap: |
| 1214 | iounmap(master->base); |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1215 | pm_runtime_disable(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1216 | exit_kfree: |
| 1217 | kfree(master); |
| 1218 | master = NULL; |
| 1219 | exit: |
| 1220 | return ret; |
| 1221 | } |
| 1222 | |
| 1223 | static int fsi_remove(struct platform_device *pdev) |
| 1224 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1225 | struct fsi_master *master; |
| 1226 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1227 | master = dev_get_drvdata(&pdev->dev); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1228 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1229 | snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(fsi_soc_dai)); |
| 1230 | snd_soc_unregister_platform(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1231 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1232 | pm_runtime_disable(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1233 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1234 | free_irq(master->irq, master); |
| 1235 | |
| 1236 | iounmap(master->base); |
| 1237 | kfree(master); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1238 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1239 | return 0; |
| 1240 | } |
| 1241 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1242 | static int fsi_runtime_nop(struct device *dev) |
| 1243 | { |
| 1244 | /* Runtime PM callback shared between ->runtime_suspend() |
| 1245 | * and ->runtime_resume(). Simply returns success. |
| 1246 | * |
| 1247 | * This driver re-initializes all registers after |
| 1248 | * pm_runtime_get_sync() anyway so there is no need |
| 1249 | * to save and restore registers here. |
| 1250 | */ |
| 1251 | return 0; |
| 1252 | } |
| 1253 | |
| 1254 | static struct dev_pm_ops fsi_pm_ops = { |
| 1255 | .runtime_suspend = fsi_runtime_nop, |
| 1256 | .runtime_resume = fsi_runtime_nop, |
| 1257 | }; |
| 1258 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1259 | static struct fsi_core fsi1_core = { |
| 1260 | .ver = 1, |
| 1261 | |
| 1262 | /* Interrupt */ |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1263 | .int_st = INT_ST, |
| 1264 | .iemsk = IEMSK, |
| 1265 | .imsk = IMSK, |
| 1266 | }; |
| 1267 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1268 | static struct fsi_core fsi2_core = { |
| 1269 | .ver = 2, |
| 1270 | |
| 1271 | /* Interrupt */ |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1272 | .int_st = CPU_INT_ST, |
| 1273 | .iemsk = CPU_IEMSK, |
| 1274 | .imsk = CPU_IMSK, |
| 1275 | }; |
| 1276 | |
| 1277 | static struct platform_device_id fsi_id_table[] = { |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1278 | { "sh_fsi", (kernel_ulong_t)&fsi1_core }, |
| 1279 | { "sh_fsi2", (kernel_ulong_t)&fsi2_core }, |
Guennadi Liakhovetski | 05c6945 | 2010-10-05 17:54:28 +0200 | [diff] [blame] | 1280 | {}, |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1281 | }; |
Dzianis Kahanovich | d85a6d7 | 2010-09-17 16:42:05 +0300 | [diff] [blame] | 1282 | MODULE_DEVICE_TABLE(platform, fsi_id_table); |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1283 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1284 | static struct platform_driver fsi_driver = { |
| 1285 | .driver = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1286 | .name = "fsi-pcm-audio", |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1287 | .pm = &fsi_pm_ops, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1288 | }, |
| 1289 | .probe = fsi_probe, |
| 1290 | .remove = fsi_remove, |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1291 | .id_table = fsi_id_table, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1292 | }; |
| 1293 | |
| 1294 | static int __init fsi_mobile_init(void) |
| 1295 | { |
| 1296 | return platform_driver_register(&fsi_driver); |
| 1297 | } |
| 1298 | |
| 1299 | static void __exit fsi_mobile_exit(void) |
| 1300 | { |
| 1301 | platform_driver_unregister(&fsi_driver); |
| 1302 | } |
Dzianis Kahanovich | d85a6d7 | 2010-09-17 16:42:05 +0300 | [diff] [blame] | 1303 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1304 | module_init(fsi_mobile_init); |
| 1305 | module_exit(fsi_mobile_exit); |
| 1306 | |
| 1307 | MODULE_LICENSE("GPL"); |
| 1308 | MODULE_DESCRIPTION("SuperH onchip FSI audio driver"); |
| 1309 | MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>"); |