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 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 22 | /* PortA/PortB register */ |
| 23 | #define REG_DO_FMT 0x0000 |
| 24 | #define REG_DOFF_CTL 0x0004 |
| 25 | #define REG_DOFF_ST 0x0008 |
| 26 | #define REG_DI_FMT 0x000C |
| 27 | #define REG_DIFF_CTL 0x0010 |
| 28 | #define REG_DIFF_ST 0x0014 |
| 29 | #define REG_CKG1 0x0018 |
| 30 | #define REG_CKG2 0x001C |
| 31 | #define REG_DIDT 0x0020 |
| 32 | #define REG_DODT 0x0024 |
| 33 | #define REG_MUTE_ST 0x0028 |
| 34 | #define REG_OUT_SEL 0x0030 |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 35 | |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 36 | /* master register */ |
| 37 | #define MST_CLK_RST 0x0210 |
| 38 | #define MST_SOFT_RST 0x0214 |
| 39 | #define MST_FIFO_SZ 0x0218 |
| 40 | |
| 41 | /* core register (depend on FSI version) */ |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 42 | #define A_MST_CTLR 0x0180 |
| 43 | #define B_MST_CTLR 0x01A0 |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 44 | #define CPU_INT_ST 0x01F4 |
| 45 | #define CPU_IEMSK 0x01F8 |
| 46 | #define CPU_IMSK 0x01FC |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 47 | #define INT_ST 0x0200 |
| 48 | #define IEMSK 0x0204 |
| 49 | #define IMSK 0x0208 |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 50 | |
| 51 | /* DO_FMT */ |
| 52 | /* DI_FMT */ |
Kuninori Morimoto | f7d711e | 2010-12-03 17:36:24 +0900 | [diff] [blame] | 53 | #define CR_BWS_24 (0x0 << 20) /* FSI2 */ |
| 54 | #define CR_BWS_16 (0x1 << 20) /* FSI2 */ |
| 55 | #define CR_BWS_20 (0x2 << 20) /* FSI2 */ |
| 56 | |
| 57 | #define CR_DTMD_PCM (0x0 << 8) /* FSI2 */ |
| 58 | #define CR_DTMD_SPDIF_PCM (0x1 << 8) /* FSI2 */ |
| 59 | #define CR_DTMD_SPDIF_STREAM (0x2 << 8) /* FSI2 */ |
| 60 | |
Kuninori Morimoto | a7ffb52 | 2010-07-13 12:13:00 +0900 | [diff] [blame] | 61 | #define CR_MONO (0x0 << 4) |
| 62 | #define CR_MONO_D (0x1 << 4) |
| 63 | #define CR_PCM (0x2 << 4) |
| 64 | #define CR_I2S (0x3 << 4) |
| 65 | #define CR_TDM (0x4 << 4) |
| 66 | #define CR_TDM_D (0x5 << 4) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 67 | |
| 68 | /* DOFF_CTL */ |
| 69 | /* DIFF_CTL */ |
| 70 | #define IRQ_HALF 0x00100000 |
| 71 | #define FIFO_CLR 0x00000001 |
| 72 | |
| 73 | /* DOFF_ST */ |
| 74 | #define ERR_OVER 0x00000010 |
| 75 | #define ERR_UNDER 0x00000001 |
Kuninori Morimoto | 59c3b00 | 2009-12-28 14:09:16 +0900 | [diff] [blame] | 76 | #define ST_ERR (ERR_OVER | ERR_UNDER) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 77 | |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 78 | /* CKG1 */ |
| 79 | #define ACKMD_MASK 0x00007000 |
| 80 | #define BPFMD_MASK 0x00000700 |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 81 | #define DIMD (1 << 4) |
| 82 | #define DOMD (1 << 0) |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 83 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 84 | /* A/B MST_CTLR */ |
| 85 | #define BP (1 << 4) /* Fix the signal of Biphase output */ |
| 86 | #define SE (1 << 0) /* Fix the master clock */ |
| 87 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 88 | /* CLK_RST */ |
| 89 | #define B_CLK 0x00000010 |
| 90 | #define A_CLK 0x00000001 |
| 91 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 92 | /* IO SHIFT / MACRO */ |
| 93 | #define BI_SHIFT 12 |
| 94 | #define BO_SHIFT 8 |
| 95 | #define AI_SHIFT 4 |
| 96 | #define AO_SHIFT 0 |
| 97 | #define AB_IO(param, shift) (param << shift) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 98 | |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 99 | /* SOFT_RST */ |
| 100 | #define PBSR (1 << 12) /* Port B Software Reset */ |
| 101 | #define PASR (1 << 8) /* Port A Software Reset */ |
| 102 | #define IR (1 << 4) /* Interrupt Reset */ |
| 103 | #define FSISR (1 << 0) /* Software Reset */ |
| 104 | |
Kuninori Morimoto | f7d711e | 2010-12-03 17:36:24 +0900 | [diff] [blame] | 105 | /* OUT_SEL (FSI2) */ |
| 106 | #define DMMD (1 << 4) /* SPDIF output timing 0: Biphase only */ |
| 107 | /* 1: Biphase and serial */ |
| 108 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 109 | /* FIFO_SZ */ |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 110 | #define FIFO_SZ_MASK 0x7 |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 111 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 112 | #define FSI_RATES SNDRV_PCM_RATE_8000_96000 |
| 113 | |
| 114 | #define FSI_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) |
| 115 | |
Kuninori Morimoto | d7c5762 | 2011-01-24 10:42:33 +0900 | [diff] [blame] | 116 | typedef int (*set_rate_func)(struct device *dev, int is_porta, int rate, int enable); |
| 117 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 118 | /* |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 119 | * FSI driver use below type name for variable |
| 120 | * |
| 121 | * xxx_len : data length |
| 122 | * xxx_width : data width |
| 123 | * xxx_offset : data offset |
| 124 | * xxx_num : number of data |
| 125 | */ |
| 126 | |
| 127 | /* |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 128 | * struct |
| 129 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 130 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 131 | struct fsi_stream { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 132 | struct snd_pcm_substream *substream; |
| 133 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 134 | int fifo_max_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 135 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 136 | int buff_offset; |
| 137 | int buff_len; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 138 | int period_len; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 139 | int period_num; |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 140 | |
| 141 | int uerr_num; |
| 142 | int oerr_num; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 143 | }; |
| 144 | |
| 145 | struct fsi_priv { |
| 146 | void __iomem *base; |
| 147 | struct fsi_master *master; |
| 148 | |
| 149 | struct fsi_stream playback; |
| 150 | struct fsi_stream capture; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 151 | |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 152 | int chan_num:16; |
| 153 | int clk_master:1; |
| 154 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 155 | long rate; |
Kuninori Morimoto | 106c79e | 2011-04-21 10:33:47 +0900 | [diff] [blame^] | 156 | |
| 157 | /* for suspend/resume */ |
| 158 | u32 saved_do_fmt; |
| 159 | u32 saved_di_fmt; |
| 160 | u32 saved_ckg1; |
| 161 | u32 saved_ckg2; |
| 162 | u32 saved_out_sel; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 163 | }; |
| 164 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 165 | struct fsi_core { |
| 166 | int ver; |
| 167 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 168 | u32 int_st; |
| 169 | u32 iemsk; |
| 170 | u32 imsk; |
Kuninori Morimoto | 2b0e730 | 2010-12-03 17:37:44 +0900 | [diff] [blame] | 171 | u32 a_mclk; |
| 172 | u32 b_mclk; |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 173 | }; |
| 174 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 175 | struct fsi_master { |
| 176 | void __iomem *base; |
| 177 | int irq; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 178 | struct fsi_priv fsia; |
| 179 | struct fsi_priv fsib; |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 180 | struct fsi_core *core; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 181 | struct sh_fsi_platform_info *info; |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 182 | spinlock_t lock; |
Kuninori Morimoto | 106c79e | 2011-04-21 10:33:47 +0900 | [diff] [blame^] | 183 | |
| 184 | /* for suspend/resume */ |
| 185 | u32 saved_a_mclk; |
| 186 | u32 saved_b_mclk; |
| 187 | u32 saved_iemsk; |
| 188 | u32 saved_imsk; |
| 189 | u32 saved_clk_rst; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 190 | }; |
| 191 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 192 | /* |
| 193 | * basic read write function |
| 194 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 195 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 196 | static void __fsi_reg_write(u32 reg, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 197 | { |
| 198 | /* valid data area is 24bit */ |
| 199 | data &= 0x00ffffff; |
| 200 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 201 | __raw_writel(data, reg); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 202 | } |
| 203 | |
| 204 | static u32 __fsi_reg_read(u32 reg) |
| 205 | { |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 206 | return __raw_readl(reg); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 207 | } |
| 208 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 209 | static void __fsi_reg_mask_set(u32 reg, u32 mask, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 210 | { |
| 211 | u32 val = __fsi_reg_read(reg); |
| 212 | |
| 213 | val &= ~mask; |
| 214 | val |= data & mask; |
| 215 | |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 216 | __fsi_reg_write(reg, val); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 217 | } |
| 218 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 219 | #define fsi_reg_write(p, r, d)\ |
| 220 | __fsi_reg_write((u32)(p->base + REG_##r), d) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 221 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 222 | #define fsi_reg_read(p, r)\ |
| 223 | __fsi_reg_read((u32)(p->base + REG_##r)) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 224 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 225 | #define fsi_reg_mask_set(p, r, m, d)\ |
| 226 | __fsi_reg_mask_set((u32)(p->base + REG_##r), m, d) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 227 | |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 228 | #define fsi_master_read(p, r) _fsi_master_read(p, MST_##r) |
| 229 | #define fsi_core_read(p, r) _fsi_master_read(p, p->core->r) |
| 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 | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 235 | spin_lock_irqsave(&master->lock, flags); |
| 236 | ret = __fsi_reg_read((u32)(master->base + reg)); |
| 237 | spin_unlock_irqrestore(&master->lock, flags); |
| 238 | |
| 239 | return ret; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 240 | } |
| 241 | |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 242 | #define fsi_master_mask_set(p, r, m, d) _fsi_master_mask_set(p, MST_##r, m, d) |
| 243 | #define fsi_core_mask_set(p, r, m, d) _fsi_master_mask_set(p, p->core->r, m, d) |
| 244 | static void _fsi_master_mask_set(struct fsi_master *master, |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 245 | u32 reg, u32 mask, u32 data) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 246 | { |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 247 | unsigned long flags; |
| 248 | |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 249 | spin_lock_irqsave(&master->lock, flags); |
Guennadi Liakhovetski | 0f69d97 | 2010-02-03 17:37:23 +0100 | [diff] [blame] | 250 | __fsi_reg_mask_set((u32)(master->base + reg), mask, data); |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 251 | spin_unlock_irqrestore(&master->lock, flags); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 252 | } |
| 253 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 254 | /* |
| 255 | * basic function |
| 256 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 257 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 258 | static struct fsi_master *fsi_get_master(struct fsi_priv *fsi) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 259 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 260 | return fsi->master; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 261 | } |
| 262 | |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 263 | static int fsi_is_clk_master(struct fsi_priv *fsi) |
| 264 | { |
| 265 | return fsi->clk_master; |
| 266 | } |
| 267 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 268 | static int fsi_is_port_a(struct fsi_priv *fsi) |
| 269 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 270 | return fsi->master->base == fsi->base; |
| 271 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 272 | |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 273 | 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] | 274 | { |
| 275 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 276 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 277 | return rtd->cpu_dai; |
Kuninori Morimoto | 142e817 | 2009-12-28 14:09:11 +0900 | [diff] [blame] | 278 | } |
| 279 | |
Kuninori Morimoto | 0d032c1 | 2011-01-20 11:45:51 +0900 | [diff] [blame] | 280 | static struct fsi_priv *fsi_get_priv_frm_dai(struct snd_soc_dai *dai) |
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 | struct fsi_master *master = snd_soc_dai_get_drvdata(dai); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 283 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 284 | if (dai->id == 0) |
| 285 | return &master->fsia; |
| 286 | else |
| 287 | return &master->fsib; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 288 | } |
| 289 | |
Kuninori Morimoto | 0d032c1 | 2011-01-20 11:45:51 +0900 | [diff] [blame] | 290 | static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream) |
| 291 | { |
| 292 | return fsi_get_priv_frm_dai(fsi_get_dai(substream)); |
| 293 | } |
| 294 | |
Kuninori Morimoto | d7c5762 | 2011-01-24 10:42:33 +0900 | [diff] [blame] | 295 | static set_rate_func fsi_get_info_set_rate(struct fsi_master *master) |
| 296 | { |
| 297 | if (!master->info) |
| 298 | return NULL; |
| 299 | |
| 300 | return master->info->set_rate; |
| 301 | } |
| 302 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 303 | static u32 fsi_get_info_flags(struct fsi_priv *fsi) |
| 304 | { |
| 305 | int is_porta = fsi_is_port_a(fsi); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 306 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 307 | |
Kuninori Morimoto | d7c5762 | 2011-01-24 10:42:33 +0900 | [diff] [blame] | 308 | if (!master->info) |
| 309 | return 0; |
| 310 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 311 | return is_porta ? master->info->porta_flags : |
| 312 | master->info->portb_flags; |
| 313 | } |
| 314 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 315 | static inline int fsi_stream_is_play(int stream) |
| 316 | { |
| 317 | return stream == SNDRV_PCM_STREAM_PLAYBACK; |
| 318 | } |
| 319 | |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 320 | static inline int fsi_is_play(struct snd_pcm_substream *substream) |
| 321 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 322 | return fsi_stream_is_play(substream->stream); |
| 323 | } |
| 324 | |
| 325 | static inline struct fsi_stream *fsi_get_stream(struct fsi_priv *fsi, |
| 326 | int is_play) |
| 327 | { |
| 328 | return is_play ? &fsi->playback : &fsi->capture; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 329 | } |
| 330 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 331 | 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] | 332 | { |
| 333 | int is_porta = fsi_is_port_a(fsi); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 334 | u32 shift; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 335 | |
| 336 | if (is_porta) |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 337 | shift = is_play ? AO_SHIFT : AI_SHIFT; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 338 | else |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 339 | shift = is_play ? BO_SHIFT : BI_SHIFT; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 340 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 341 | return shift; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | static void fsi_stream_push(struct fsi_priv *fsi, |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 345 | int is_play, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 346 | struct snd_pcm_substream *substream, |
| 347 | u32 buffer_len, |
| 348 | u32 period_len) |
| 349 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 350 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 351 | |
| 352 | io->substream = substream; |
| 353 | io->buff_len = buffer_len; |
| 354 | io->buff_offset = 0; |
| 355 | io->period_len = period_len; |
| 356 | io->period_num = 0; |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 357 | io->oerr_num = -1; /* ignore 1st err */ |
| 358 | io->uerr_num = -1; /* ignore 1st err */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 359 | } |
| 360 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 361 | static void fsi_stream_pop(struct fsi_priv *fsi, int is_play) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 362 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 363 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 364 | struct snd_soc_dai *dai = fsi_get_dai(io->substream); |
| 365 | |
| 366 | |
| 367 | if (io->oerr_num > 0) |
| 368 | dev_err(dai->dev, "over_run = %d\n", io->oerr_num); |
| 369 | |
| 370 | if (io->uerr_num > 0) |
| 371 | dev_err(dai->dev, "under_run = %d\n", io->uerr_num); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 372 | |
| 373 | io->substream = NULL; |
| 374 | io->buff_len = 0; |
| 375 | io->buff_offset = 0; |
| 376 | io->period_len = 0; |
| 377 | io->period_num = 0; |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 378 | io->oerr_num = 0; |
| 379 | io->uerr_num = 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 380 | } |
| 381 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 382 | 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] | 383 | { |
| 384 | u32 status; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 385 | int data_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 386 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 387 | status = is_play ? |
| 388 | fsi_reg_read(fsi, DOFF_ST) : |
| 389 | fsi_reg_read(fsi, DIFF_ST); |
| 390 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 391 | data_num = 0x1ff & (status >> 8); |
Kuninori Morimoto | 160afa7 | 2011-01-24 10:42:08 +0900 | [diff] [blame] | 392 | data_num *= fsi->chan_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 393 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 394 | return data_num; |
| 395 | } |
| 396 | |
| 397 | static int fsi_len2num(int len, int width) |
| 398 | { |
| 399 | return len / width; |
| 400 | } |
| 401 | |
| 402 | #define fsi_num2offset(a, b) fsi_num2len(a, b) |
| 403 | static int fsi_num2len(int num, int width) |
| 404 | { |
| 405 | return num * width; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 406 | } |
| 407 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 408 | 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] | 409 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 410 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 411 | struct snd_pcm_substream *substream = io->substream; |
Kuninori Morimoto | cca1b23 | 2010-10-12 11:39:25 +0900 | [diff] [blame] | 412 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 413 | |
Kuninori Morimoto | 160afa7 | 2011-01-24 10:42:08 +0900 | [diff] [blame] | 414 | return frames_to_bytes(runtime, 1) / fsi->chan_num; |
Kuninori Morimoto | cca1b23 | 2010-10-12 11:39:25 +0900 | [diff] [blame] | 415 | } |
| 416 | |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 417 | static void fsi_count_fifo_err(struct fsi_priv *fsi) |
| 418 | { |
| 419 | u32 ostatus = fsi_reg_read(fsi, DOFF_ST); |
| 420 | u32 istatus = fsi_reg_read(fsi, DIFF_ST); |
| 421 | |
| 422 | if (ostatus & ERR_OVER) |
| 423 | fsi->playback.oerr_num++; |
| 424 | |
| 425 | if (ostatus & ERR_UNDER) |
| 426 | fsi->playback.uerr_num++; |
| 427 | |
| 428 | if (istatus & ERR_OVER) |
| 429 | fsi->capture.oerr_num++; |
| 430 | |
| 431 | if (istatus & ERR_UNDER) |
| 432 | fsi->capture.uerr_num++; |
| 433 | |
| 434 | fsi_reg_write(fsi, DOFF_ST, 0); |
| 435 | fsi_reg_write(fsi, DIFF_ST, 0); |
| 436 | } |
| 437 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 438 | /* |
| 439 | * dma function |
| 440 | */ |
| 441 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 442 | static u8 *fsi_dma_get_area(struct fsi_priv *fsi, int stream) |
Kuninori Morimoto | c79eab3 | 2010-09-17 13:48:05 +0900 | [diff] [blame] | 443 | { |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 444 | int is_play = fsi_stream_is_play(stream); |
| 445 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
| 446 | |
| 447 | return io->substream->runtime->dma_area + io->buff_offset; |
Kuninori Morimoto | c79eab3 | 2010-09-17 13:48:05 +0900 | [diff] [blame] | 448 | } |
| 449 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 450 | static void fsi_dma_soft_push16(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 451 | { |
| 452 | u16 *start; |
| 453 | int i; |
| 454 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 455 | start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 456 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 457 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 458 | fsi_reg_write(fsi, DODT, ((u32)*(start + i) << 8)); |
| 459 | } |
| 460 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 461 | static void fsi_dma_soft_pop16(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 462 | { |
| 463 | u16 *start; |
| 464 | int i; |
| 465 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 466 | start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); |
| 467 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 468 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 469 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 470 | *(start + i) = (u16)(fsi_reg_read(fsi, DIDT) >> 8); |
| 471 | } |
| 472 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 473 | static void fsi_dma_soft_push32(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 474 | { |
| 475 | u32 *start; |
| 476 | int i; |
| 477 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 478 | start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); |
| 479 | |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 480 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 481 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 482 | fsi_reg_write(fsi, DODT, *(start + i)); |
| 483 | } |
| 484 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 485 | static void fsi_dma_soft_pop32(struct fsi_priv *fsi, int num) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 486 | { |
| 487 | u32 *start; |
| 488 | int i; |
| 489 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 490 | start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 491 | |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 492 | for (i = 0; i < num; i++) |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 493 | *(start + i) = fsi_reg_read(fsi, DIDT); |
| 494 | } |
| 495 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 496 | /* |
| 497 | * irq function |
| 498 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 499 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 500 | static void fsi_irq_enable(struct fsi_priv *fsi, int is_play) |
| 501 | { |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 502 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, is_play)); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 503 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 504 | |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 505 | fsi_core_mask_set(master, imsk, data, data); |
| 506 | fsi_core_mask_set(master, iemsk, data, data); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 507 | } |
| 508 | |
| 509 | static void fsi_irq_disable(struct fsi_priv *fsi, int is_play) |
| 510 | { |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 511 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, is_play)); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 512 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 513 | |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 514 | fsi_core_mask_set(master, imsk, data, 0); |
| 515 | fsi_core_mask_set(master, iemsk, data, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 516 | } |
| 517 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 518 | static u32 fsi_irq_get_status(struct fsi_master *master) |
| 519 | { |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 520 | return fsi_core_read(master, int_st); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 521 | } |
| 522 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 523 | static void fsi_irq_clear_status(struct fsi_priv *fsi) |
| 524 | { |
| 525 | u32 data = 0; |
| 526 | struct fsi_master *master = fsi_get_master(fsi); |
| 527 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 528 | data |= AB_IO(1, fsi_get_port_shift(fsi, 0)); |
| 529 | data |= AB_IO(1, fsi_get_port_shift(fsi, 1)); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 530 | |
| 531 | /* clear interrupt factor */ |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 532 | fsi_core_mask_set(master, int_st, data, 0); |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 533 | } |
| 534 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 535 | /* |
| 536 | * SPDIF master clock function |
| 537 | * |
| 538 | * These functions are used later FSI2 |
| 539 | */ |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 540 | static void fsi_spdif_clk_ctrl(struct fsi_priv *fsi, int enable) |
| 541 | { |
| 542 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 2b0e730 | 2010-12-03 17:37:44 +0900 | [diff] [blame] | 543 | u32 mask, val; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 544 | |
| 545 | if (master->core->ver < 2) { |
| 546 | pr_err("fsi: register access err (%s)\n", __func__); |
| 547 | return; |
| 548 | } |
| 549 | |
Kuninori Morimoto | 2b0e730 | 2010-12-03 17:37:44 +0900 | [diff] [blame] | 550 | mask = BP | SE; |
| 551 | val = enable ? mask : 0; |
| 552 | |
| 553 | fsi_is_port_a(fsi) ? |
Kuninori Morimoto | 43fa95c | 2010-12-03 17:38:03 +0900 | [diff] [blame] | 554 | fsi_core_mask_set(master, a_mclk, mask, val) : |
| 555 | fsi_core_mask_set(master, b_mclk, mask, val); |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 556 | } |
| 557 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 558 | /* |
| 559 | * ctrl function |
| 560 | */ |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 561 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 562 | static void fsi_clk_ctrl(struct fsi_priv *fsi, int enable) |
| 563 | { |
| 564 | u32 val = fsi_is_port_a(fsi) ? (1 << 0) : (1 << 4); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 565 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 566 | |
| 567 | if (enable) |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 568 | fsi_master_mask_set(master, CLK_RST, val, val); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 569 | else |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 570 | fsi_master_mask_set(master, CLK_RST, val, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 571 | } |
| 572 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 573 | static void fsi_fifo_init(struct fsi_priv *fsi, |
| 574 | int is_play, |
| 575 | struct snd_soc_dai *dai) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 576 | { |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 577 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 578 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 579 | u32 shift, i; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 580 | |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 581 | /* get on-chip RAM capacity */ |
| 582 | shift = fsi_master_read(master, FIFO_SZ); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 583 | shift >>= fsi_get_port_shift(fsi, is_play); |
| 584 | shift &= FIFO_SZ_MASK; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 585 | io->fifo_max_num = 256 << shift; |
| 586 | dev_dbg(dai->dev, "fifo = %d words\n", io->fifo_max_num); |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 587 | |
| 588 | /* |
| 589 | * The maximum number of sample data varies depending |
| 590 | * on the number of channels selected for the format. |
| 591 | * |
| 592 | * FIFOs are used in 4-channel units in 3-channel mode |
| 593 | * and in 8-channel units in 5- to 7-channel mode |
| 594 | * meaning that more FIFOs than the required size of DPRAM |
| 595 | * are used. |
| 596 | * |
| 597 | * ex) if 256 words of DP-RAM is connected |
| 598 | * 1 channel: 256 (256 x 1 = 256) |
| 599 | * 2 channels: 128 (128 x 2 = 256) |
| 600 | * 3 channels: 64 ( 64 x 3 = 192) |
| 601 | * 4 channels: 64 ( 64 x 4 = 256) |
| 602 | * 5 channels: 32 ( 32 x 5 = 160) |
| 603 | * 6 channels: 32 ( 32 x 6 = 192) |
| 604 | * 7 channels: 32 ( 32 x 7 = 224) |
| 605 | * 8 channels: 32 ( 32 x 8 = 256) |
| 606 | */ |
Kuninori Morimoto | 160afa7 | 2011-01-24 10:42:08 +0900 | [diff] [blame] | 607 | for (i = 1; i < fsi->chan_num; i <<= 1) |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 608 | io->fifo_max_num >>= 1; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 609 | dev_dbg(dai->dev, "%d channel %d store\n", |
Kuninori Morimoto | 160afa7 | 2011-01-24 10:42:08 +0900 | [diff] [blame] | 610 | fsi->chan_num, io->fifo_max_num); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 611 | |
Kuninori Morimoto | e8c8b63 | 2010-12-03 17:37:55 +0900 | [diff] [blame] | 612 | /* |
| 613 | * set interrupt generation factor |
| 614 | * clear FIFO |
| 615 | */ |
| 616 | if (is_play) { |
| 617 | fsi_reg_write(fsi, DOFF_CTL, IRQ_HALF); |
| 618 | fsi_reg_mask_set(fsi, DOFF_CTL, FIFO_CLR, FIFO_CLR); |
| 619 | } else { |
| 620 | fsi_reg_write(fsi, DIFF_CTL, IRQ_HALF); |
| 621 | fsi_reg_mask_set(fsi, DIFF_CTL, FIFO_CLR, FIFO_CLR); |
| 622 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 623 | } |
| 624 | |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 625 | static void fsi_soft_all_reset(struct fsi_master *master) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 626 | { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 627 | /* port AB reset */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 628 | fsi_master_mask_set(master, SOFT_RST, PASR | PBSR, 0); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 629 | mdelay(10); |
| 630 | |
| 631 | /* soft reset */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 632 | fsi_master_mask_set(master, SOFT_RST, FSISR, 0); |
| 633 | fsi_master_mask_set(master, SOFT_RST, FSISR, FSISR); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 634 | mdelay(10); |
| 635 | } |
| 636 | |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 637 | static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 638 | { |
| 639 | struct snd_pcm_runtime *runtime; |
| 640 | struct snd_pcm_substream *substream = NULL; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 641 | int is_play = fsi_stream_is_play(stream); |
| 642 | struct fsi_stream *io = fsi_get_stream(fsi, is_play); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 643 | int data_residue_num; |
| 644 | int data_num; |
| 645 | int data_num_max; |
Kuninori Morimoto | 5bfb9ad | 2010-09-17 13:48:45 +0900 | [diff] [blame] | 646 | int ch_width; |
Kuninori Morimoto | b9fde18 | 2010-09-17 13:48:32 +0900 | [diff] [blame] | 647 | int over_period; |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 648 | void (*fn)(struct fsi_priv *fsi, int size); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 649 | |
| 650 | if (!fsi || |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 651 | !io->substream || |
| 652 | !io->substream->runtime) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 653 | return -EINVAL; |
| 654 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 655 | over_period = 0; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 656 | substream = io->substream; |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 657 | runtime = substream->runtime; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 658 | |
| 659 | /* FSI FIFO has limit. |
| 660 | * So, this driver can not send periods data at a time |
| 661 | */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 662 | if (io->buff_offset >= |
| 663 | fsi_num2offset(io->period_num + 1, io->period_len)) { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 664 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 665 | over_period = 1; |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 666 | io->period_num = (io->period_num + 1) % runtime->periods; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 667 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 668 | if (0 == io->period_num) |
| 669 | io->buff_offset = 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 670 | } |
| 671 | |
| 672 | /* get 1 channel data width */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 673 | ch_width = fsi_get_frame_width(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 674 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 675 | /* get residue data number of alsa */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 676 | data_residue_num = fsi_len2num(io->buff_len - io->buff_offset, |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 677 | ch_width); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 678 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 679 | if (is_play) { |
| 680 | /* |
| 681 | * for play-back |
| 682 | * |
| 683 | * data_num_max : number of FSI fifo free space |
| 684 | * data_num : number of ALSA residue data |
| 685 | */ |
Kuninori Morimoto | 160afa7 | 2011-01-24 10:42:08 +0900 | [diff] [blame] | 686 | data_num_max = io->fifo_max_num * fsi->chan_num; |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 687 | data_num_max -= fsi_get_fifo_data_num(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 688 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 689 | data_num = data_residue_num; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 690 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 691 | switch (ch_width) { |
| 692 | case 2: |
| 693 | fn = fsi_dma_soft_push16; |
| 694 | break; |
| 695 | case 4: |
| 696 | fn = fsi_dma_soft_push32; |
| 697 | break; |
| 698 | default: |
| 699 | return -EINVAL; |
| 700 | } |
| 701 | } else { |
| 702 | /* |
| 703 | * for capture |
| 704 | * |
| 705 | * data_num_max : number of ALSA free space |
| 706 | * data_num : number of data in FSI fifo |
| 707 | */ |
| 708 | data_num_max = data_residue_num; |
| 709 | data_num = fsi_get_fifo_data_num(fsi, is_play); |
| 710 | |
| 711 | switch (ch_width) { |
| 712 | case 2: |
| 713 | fn = fsi_dma_soft_pop16; |
| 714 | break; |
| 715 | case 4: |
| 716 | fn = fsi_dma_soft_pop32; |
| 717 | break; |
| 718 | default: |
| 719 | return -EINVAL; |
| 720 | } |
Kuninori Morimoto | 9ddc9aa | 2009-10-30 12:02:39 +0900 | [diff] [blame] | 721 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 722 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 723 | data_num = min(data_num, data_num_max); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 724 | |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 725 | fn(fsi, data_num); |
| 726 | |
| 727 | /* update buff_offset */ |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 728 | io->buff_offset += fsi_num2offset(data_num, ch_width); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 729 | |
Kuninori Morimoto | 1c418d1 | 2009-12-28 14:09:05 +0900 | [diff] [blame] | 730 | if (over_period) |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 731 | snd_pcm_period_elapsed(substream); |
| 732 | |
Kuninori Morimoto | 47fc9a0 | 2010-02-22 16:41:57 +0900 | [diff] [blame] | 733 | return 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 734 | } |
| 735 | |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 736 | static int fsi_data_pop(struct fsi_priv *fsi) |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 737 | { |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 738 | return fsi_fifo_data_ctrl(fsi, SNDRV_PCM_STREAM_CAPTURE); |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 739 | } |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 740 | |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 741 | static int fsi_data_push(struct fsi_priv *fsi) |
Kuninori Morimoto | d8b3353 | 2010-09-17 13:49:05 +0900 | [diff] [blame] | 742 | { |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 743 | return fsi_fifo_data_ctrl(fsi, SNDRV_PCM_STREAM_PLAYBACK); |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 744 | } |
| 745 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 746 | static irqreturn_t fsi_interrupt(int irq, void *data) |
| 747 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 748 | struct fsi_master *master = data; |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 749 | u32 int_st = fsi_irq_get_status(master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 750 | |
| 751 | /* clear irq status */ |
Kuninori Morimoto | feb58cf | 2010-03-24 15:27:24 +0900 | [diff] [blame] | 752 | fsi_master_mask_set(master, SOFT_RST, IR, 0); |
| 753 | fsi_master_mask_set(master, SOFT_RST, IR, IR); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 754 | |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 755 | if (int_st & AB_IO(1, AO_SHIFT)) |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 756 | fsi_data_push(&master->fsia); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 757 | if (int_st & AB_IO(1, BO_SHIFT)) |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 758 | fsi_data_push(&master->fsib); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 759 | if (int_st & AB_IO(1, AI_SHIFT)) |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 760 | fsi_data_pop(&master->fsia); |
Kuninori Morimoto | cf6edd0 | 2010-10-12 11:40:53 +0900 | [diff] [blame] | 761 | if (int_st & AB_IO(1, BI_SHIFT)) |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 762 | fsi_data_pop(&master->fsib); |
| 763 | |
| 764 | fsi_count_fifo_err(&master->fsia); |
| 765 | fsi_count_fifo_err(&master->fsib); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 766 | |
Kuninori Morimoto | 48d78e5 | 2010-12-03 17:37:31 +0900 | [diff] [blame] | 767 | fsi_irq_clear_status(&master->fsia); |
| 768 | fsi_irq_clear_status(&master->fsib); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 769 | |
| 770 | return IRQ_HANDLED; |
| 771 | } |
| 772 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 773 | /* |
| 774 | * dai ops |
| 775 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 776 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 777 | static int fsi_dai_startup(struct snd_pcm_substream *substream, |
| 778 | struct snd_soc_dai *dai) |
| 779 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 780 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 781 | u32 flags = fsi_get_info_flags(fsi); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 782 | u32 data; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 783 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 784 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 785 | pm_runtime_get_sync(dai->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 786 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 787 | |
| 788 | /* clock inversion (CKG2) */ |
| 789 | data = 0; |
Kuninori Morimoto | b427b44 | 2010-07-13 12:01:15 +0900 | [diff] [blame] | 790 | if (SH_FSI_LRM_INV & flags) |
| 791 | data |= 1 << 12; |
| 792 | if (SH_FSI_BRM_INV & flags) |
| 793 | data |= 1 << 8; |
| 794 | if (SH_FSI_LRS_INV & flags) |
| 795 | data |= 1 << 4; |
| 796 | if (SH_FSI_BRS_INV & flags) |
| 797 | data |= 1 << 0; |
| 798 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 799 | fsi_reg_write(fsi, CKG2, data); |
| 800 | |
Kuninori Morimoto | 10ea76c | 2010-03-23 11:47:54 +0900 | [diff] [blame] | 801 | /* irq clear */ |
| 802 | fsi_irq_disable(fsi, is_play); |
| 803 | fsi_irq_clear_status(fsi); |
| 804 | |
| 805 | /* fifo init */ |
Kuninori Morimoto | 4a942b4 | 2010-03-25 19:15:51 +0900 | [diff] [blame] | 806 | fsi_fifo_init(fsi, is_play, dai); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 807 | |
Kuninori Morimoto | a68a3b4 | 2010-10-12 11:39:50 +0900 | [diff] [blame] | 808 | return 0; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 809 | } |
| 810 | |
| 811 | static void fsi_dai_shutdown(struct snd_pcm_substream *substream, |
| 812 | struct snd_soc_dai *dai) |
| 813 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 814 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 815 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 816 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 817 | set_rate_func set_rate = fsi_get_info_set_rate(master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 818 | |
| 819 | fsi_irq_disable(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 820 | |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 821 | if (fsi_is_clk_master(fsi)) { |
| 822 | fsi_clk_ctrl(fsi, 0); |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 823 | set_rate(dai->dev, fsi_is_port_a(fsi), fsi->rate, 0); |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 824 | } |
| 825 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 826 | fsi->rate = 0; |
| 827 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 828 | pm_runtime_put_sync(dai->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd, |
| 832 | struct snd_soc_dai *dai) |
| 833 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 834 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 835 | struct snd_pcm_runtime *runtime = substream->runtime; |
Kuninori Morimoto | 0054578 | 2010-10-12 18:30:14 +0900 | [diff] [blame] | 836 | int is_play = fsi_is_play(substream); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 837 | int ret = 0; |
| 838 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 839 | switch (cmd) { |
| 840 | case SNDRV_PCM_TRIGGER_START: |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 841 | fsi_stream_push(fsi, is_play, substream, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 842 | frames_to_bytes(runtime, runtime->buffer_size), |
| 843 | frames_to_bytes(runtime, runtime->period_size)); |
Kuninori Morimoto | 1ec9bc3 | 2010-12-17 12:55:22 +0900 | [diff] [blame] | 844 | ret = is_play ? fsi_data_push(fsi) : fsi_data_pop(fsi); |
Kuninori Morimoto | 9e261bb | 2010-12-17 12:52:56 +0900 | [diff] [blame] | 845 | fsi_irq_enable(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 846 | break; |
| 847 | case SNDRV_PCM_TRIGGER_STOP: |
| 848 | fsi_irq_disable(fsi, is_play); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 849 | fsi_stream_pop(fsi, is_play); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 850 | break; |
| 851 | } |
| 852 | |
| 853 | return ret; |
| 854 | } |
| 855 | |
Kuninori Morimoto | f17c13c | 2011-01-24 10:43:19 +0900 | [diff] [blame] | 856 | static int fsi_set_fmt_dai(struct fsi_priv *fsi, unsigned int fmt) |
| 857 | { |
| 858 | u32 data = 0; |
| 859 | |
| 860 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 861 | case SND_SOC_DAIFMT_I2S: |
| 862 | data = CR_I2S; |
| 863 | fsi->chan_num = 2; |
| 864 | break; |
| 865 | case SND_SOC_DAIFMT_LEFT_J: |
| 866 | data = CR_PCM; |
| 867 | fsi->chan_num = 2; |
| 868 | break; |
| 869 | default: |
| 870 | return -EINVAL; |
| 871 | } |
| 872 | |
| 873 | fsi_reg_write(fsi, DO_FMT, data); |
| 874 | fsi_reg_write(fsi, DI_FMT, data); |
| 875 | |
| 876 | return 0; |
| 877 | } |
| 878 | |
| 879 | static int fsi_set_fmt_spdif(struct fsi_priv *fsi) |
| 880 | { |
| 881 | struct fsi_master *master = fsi_get_master(fsi); |
| 882 | u32 data = 0; |
| 883 | |
| 884 | if (master->core->ver < 2) |
| 885 | return -EINVAL; |
| 886 | |
| 887 | data = CR_BWS_16 | CR_DTMD_SPDIF_PCM | CR_PCM; |
| 888 | fsi->chan_num = 2; |
| 889 | fsi_spdif_clk_ctrl(fsi, 1); |
| 890 | fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD); |
| 891 | |
| 892 | fsi_reg_write(fsi, DO_FMT, data); |
| 893 | fsi_reg_write(fsi, DI_FMT, data); |
| 894 | |
| 895 | return 0; |
| 896 | } |
| 897 | |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 898 | static int fsi_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| 899 | { |
| 900 | struct fsi_priv *fsi = fsi_get_priv_frm_dai(dai); |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 901 | struct fsi_master *master = fsi_get_master(fsi); |
| 902 | set_rate_func set_rate = fsi_get_info_set_rate(master); |
Kuninori Morimoto | f17c13c | 2011-01-24 10:43:19 +0900 | [diff] [blame] | 903 | u32 flags = fsi_get_info_flags(fsi); |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 904 | u32 data = 0; |
| 905 | int ret; |
| 906 | |
| 907 | pm_runtime_get_sync(dai->dev); |
| 908 | |
| 909 | /* set master/slave audio interface */ |
| 910 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 911 | case SND_SOC_DAIFMT_CBM_CFM: |
| 912 | data = DIMD | DOMD; |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 913 | fsi->clk_master = 1; |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 914 | break; |
| 915 | case SND_SOC_DAIFMT_CBS_CFS: |
| 916 | break; |
| 917 | default: |
| 918 | ret = -EINVAL; |
| 919 | goto set_fmt_exit; |
| 920 | } |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 921 | |
| 922 | if (fsi_is_clk_master(fsi) && !set_rate) { |
| 923 | dev_err(dai->dev, "platform doesn't have set_rate\n"); |
| 924 | ret = -EINVAL; |
| 925 | goto set_fmt_exit; |
| 926 | } |
| 927 | |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 928 | fsi_reg_mask_set(fsi, CKG1, (DIMD | DOMD), data); |
Kuninori Morimoto | f17c13c | 2011-01-24 10:43:19 +0900 | [diff] [blame] | 929 | |
| 930 | /* set format */ |
| 931 | switch (flags & SH_FSI_FMT_MASK) { |
| 932 | case SH_FSI_FMT_DAI: |
| 933 | ret = fsi_set_fmt_dai(fsi, fmt & SND_SOC_DAIFMT_FORMAT_MASK); |
| 934 | break; |
| 935 | case SH_FSI_FMT_SPDIF: |
| 936 | ret = fsi_set_fmt_spdif(fsi); |
| 937 | break; |
| 938 | default: |
| 939 | ret = -EINVAL; |
| 940 | } |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 941 | |
| 942 | set_fmt_exit: |
| 943 | pm_runtime_put_sync(dai->dev); |
| 944 | |
| 945 | return ret; |
| 946 | } |
| 947 | |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 948 | static int fsi_dai_hw_params(struct snd_pcm_substream *substream, |
| 949 | struct snd_pcm_hw_params *params, |
| 950 | struct snd_soc_dai *dai) |
| 951 | { |
| 952 | struct fsi_priv *fsi = fsi_get_priv(substream); |
| 953 | struct fsi_master *master = fsi_get_master(fsi); |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 954 | set_rate_func set_rate = fsi_get_info_set_rate(master); |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 955 | int fsi_ver = master->core->ver; |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 956 | long rate = params_rate(params); |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 957 | int ret; |
| 958 | |
Kuninori Morimoto | 6a9ebad | 2011-04-21 10:33:36 +0900 | [diff] [blame] | 959 | if (!fsi_is_clk_master(fsi)) |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 960 | return 0; |
| 961 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 962 | ret = set_rate(dai->dev, fsi_is_port_a(fsi), rate, 1); |
| 963 | if (ret < 0) /* error */ |
| 964 | return ret; |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 965 | |
Kuninori Morimoto | d4bc99b | 2010-11-24 02:44:06 +0000 | [diff] [blame] | 966 | fsi->rate = rate; |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 967 | if (ret > 0) { |
| 968 | u32 data = 0; |
| 969 | |
| 970 | switch (ret & SH_FSI_ACKMD_MASK) { |
| 971 | default: |
| 972 | /* FALL THROUGH */ |
| 973 | case SH_FSI_ACKMD_512: |
| 974 | data |= (0x0 << 12); |
| 975 | break; |
| 976 | case SH_FSI_ACKMD_256: |
| 977 | data |= (0x1 << 12); |
| 978 | break; |
| 979 | case SH_FSI_ACKMD_128: |
| 980 | data |= (0x2 << 12); |
| 981 | break; |
| 982 | case SH_FSI_ACKMD_64: |
| 983 | data |= (0x3 << 12); |
| 984 | break; |
| 985 | case SH_FSI_ACKMD_32: |
| 986 | if (fsi_ver < 2) |
| 987 | dev_err(dai->dev, "unsupported ACKMD\n"); |
| 988 | else |
| 989 | data |= (0x4 << 12); |
| 990 | break; |
| 991 | } |
| 992 | |
| 993 | switch (ret & SH_FSI_BPFMD_MASK) { |
| 994 | default: |
| 995 | /* FALL THROUGH */ |
| 996 | case SH_FSI_BPFMD_32: |
| 997 | data |= (0x0 << 8); |
| 998 | break; |
| 999 | case SH_FSI_BPFMD_64: |
| 1000 | data |= (0x1 << 8); |
| 1001 | break; |
| 1002 | case SH_FSI_BPFMD_128: |
| 1003 | data |= (0x2 << 8); |
| 1004 | break; |
| 1005 | case SH_FSI_BPFMD_256: |
| 1006 | data |= (0x3 << 8); |
| 1007 | break; |
| 1008 | case SH_FSI_BPFMD_512: |
| 1009 | data |= (0x4 << 8); |
| 1010 | break; |
| 1011 | case SH_FSI_BPFMD_16: |
| 1012 | if (fsi_ver < 2) |
| 1013 | dev_err(dai->dev, "unsupported ACKMD\n"); |
| 1014 | else |
| 1015 | data |= (0x7 << 8); |
| 1016 | break; |
| 1017 | } |
| 1018 | |
| 1019 | fsi_reg_mask_set(fsi, CKG1, (ACKMD_MASK | BPFMD_MASK) , data); |
| 1020 | udelay(10); |
| 1021 | fsi_clk_ctrl(fsi, 1); |
| 1022 | ret = 0; |
| 1023 | } |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 1024 | |
| 1025 | return ret; |
| 1026 | |
| 1027 | } |
| 1028 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1029 | static struct snd_soc_dai_ops fsi_dai_ops = { |
| 1030 | .startup = fsi_dai_startup, |
| 1031 | .shutdown = fsi_dai_shutdown, |
| 1032 | .trigger = fsi_dai_trigger, |
Kuninori Morimoto | 4d805f7 | 2011-01-20 11:46:02 +0900 | [diff] [blame] | 1033 | .set_fmt = fsi_dai_set_fmt, |
Kuninori Morimoto | ccad7b4 | 2010-07-13 12:13:14 +0900 | [diff] [blame] | 1034 | .hw_params = fsi_dai_hw_params, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1035 | }; |
| 1036 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1037 | /* |
| 1038 | * pcm ops |
| 1039 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1040 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1041 | static struct snd_pcm_hardware fsi_pcm_hardware = { |
| 1042 | .info = SNDRV_PCM_INFO_INTERLEAVED | |
| 1043 | SNDRV_PCM_INFO_MMAP | |
| 1044 | SNDRV_PCM_INFO_MMAP_VALID | |
| 1045 | SNDRV_PCM_INFO_PAUSE, |
| 1046 | .formats = FSI_FMTS, |
| 1047 | .rates = FSI_RATES, |
| 1048 | .rate_min = 8000, |
| 1049 | .rate_max = 192000, |
| 1050 | .channels_min = 1, |
| 1051 | .channels_max = 2, |
| 1052 | .buffer_bytes_max = 64 * 1024, |
| 1053 | .period_bytes_min = 32, |
| 1054 | .period_bytes_max = 8192, |
| 1055 | .periods_min = 1, |
| 1056 | .periods_max = 32, |
| 1057 | .fifo_size = 256, |
| 1058 | }; |
| 1059 | |
| 1060 | static int fsi_pcm_open(struct snd_pcm_substream *substream) |
| 1061 | { |
| 1062 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1063 | int ret = 0; |
| 1064 | |
| 1065 | snd_soc_set_runtime_hwparams(substream, &fsi_pcm_hardware); |
| 1066 | |
| 1067 | ret = snd_pcm_hw_constraint_integer(runtime, |
| 1068 | SNDRV_PCM_HW_PARAM_PERIODS); |
| 1069 | |
| 1070 | return ret; |
| 1071 | } |
| 1072 | |
| 1073 | static int fsi_hw_params(struct snd_pcm_substream *substream, |
| 1074 | struct snd_pcm_hw_params *hw_params) |
| 1075 | { |
| 1076 | return snd_pcm_lib_malloc_pages(substream, |
| 1077 | params_buffer_bytes(hw_params)); |
| 1078 | } |
| 1079 | |
| 1080 | static int fsi_hw_free(struct snd_pcm_substream *substream) |
| 1081 | { |
| 1082 | return snd_pcm_lib_free_pages(substream); |
| 1083 | } |
| 1084 | |
| 1085 | static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream) |
| 1086 | { |
| 1087 | struct snd_pcm_runtime *runtime = substream->runtime; |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1088 | struct fsi_priv *fsi = fsi_get_priv(substream); |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 1089 | struct fsi_stream *io = fsi_get_stream(fsi, fsi_is_play(substream)); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1090 | long location; |
| 1091 | |
Kuninori Morimoto | 93193c2 | 2010-10-12 19:19:28 +0900 | [diff] [blame] | 1092 | location = (io->buff_offset - 1); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1093 | if (location < 0) |
| 1094 | location = 0; |
| 1095 | |
| 1096 | return bytes_to_frames(runtime, location); |
| 1097 | } |
| 1098 | |
| 1099 | static struct snd_pcm_ops fsi_pcm_ops = { |
| 1100 | .open = fsi_pcm_open, |
| 1101 | .ioctl = snd_pcm_lib_ioctl, |
| 1102 | .hw_params = fsi_hw_params, |
| 1103 | .hw_free = fsi_hw_free, |
| 1104 | .pointer = fsi_pointer, |
| 1105 | }; |
| 1106 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1107 | /* |
| 1108 | * snd_soc_platform |
| 1109 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1110 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1111 | #define PREALLOC_BUFFER (32 * 1024) |
| 1112 | #define PREALLOC_BUFFER_MAX (32 * 1024) |
| 1113 | |
| 1114 | static void fsi_pcm_free(struct snd_pcm *pcm) |
| 1115 | { |
| 1116 | snd_pcm_lib_preallocate_free_for_all(pcm); |
| 1117 | } |
| 1118 | |
| 1119 | static int fsi_pcm_new(struct snd_card *card, |
| 1120 | struct snd_soc_dai *dai, |
| 1121 | struct snd_pcm *pcm) |
| 1122 | { |
| 1123 | /* |
| 1124 | * dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel |
| 1125 | * in MMAP mode (i.e. aplay -M) |
| 1126 | */ |
| 1127 | return snd_pcm_lib_preallocate_pages_for_all( |
| 1128 | pcm, |
| 1129 | SNDRV_DMA_TYPE_CONTINUOUS, |
| 1130 | snd_dma_continuous_data(GFP_KERNEL), |
| 1131 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); |
| 1132 | } |
| 1133 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1134 | /* |
| 1135 | * alsa struct |
| 1136 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1137 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1138 | static struct snd_soc_dai_driver fsi_soc_dai[] = { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1139 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1140 | .name = "fsia-dai", |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1141 | .playback = { |
| 1142 | .rates = FSI_RATES, |
| 1143 | .formats = FSI_FMTS, |
| 1144 | .channels_min = 1, |
| 1145 | .channels_max = 8, |
| 1146 | }, |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 1147 | .capture = { |
| 1148 | .rates = FSI_RATES, |
| 1149 | .formats = FSI_FMTS, |
| 1150 | .channels_min = 1, |
| 1151 | .channels_max = 8, |
| 1152 | }, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1153 | .ops = &fsi_dai_ops, |
| 1154 | }, |
| 1155 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1156 | .name = "fsib-dai", |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1157 | .playback = { |
| 1158 | .rates = FSI_RATES, |
| 1159 | .formats = FSI_FMTS, |
| 1160 | .channels_min = 1, |
| 1161 | .channels_max = 8, |
| 1162 | }, |
Kuninori Morimoto | 07102f3 | 2009-10-30 12:02:44 +0900 | [diff] [blame] | 1163 | .capture = { |
| 1164 | .rates = FSI_RATES, |
| 1165 | .formats = FSI_FMTS, |
| 1166 | .channels_min = 1, |
| 1167 | .channels_max = 8, |
| 1168 | }, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1169 | .ops = &fsi_dai_ops, |
| 1170 | }, |
| 1171 | }; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1172 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1173 | static struct snd_soc_platform_driver fsi_soc_platform = { |
| 1174 | .ops = &fsi_pcm_ops, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1175 | .pcm_new = fsi_pcm_new, |
| 1176 | .pcm_free = fsi_pcm_free, |
| 1177 | }; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1178 | |
Kuninori Morimoto | c8fe257 | 2010-09-17 13:48:17 +0900 | [diff] [blame] | 1179 | /* |
| 1180 | * platform function |
| 1181 | */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1182 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1183 | static int fsi_probe(struct platform_device *pdev) |
| 1184 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1185 | struct fsi_master *master; |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1186 | const struct platform_device_id *id_entry; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1187 | struct resource *res; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1188 | unsigned int irq; |
| 1189 | int ret; |
| 1190 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1191 | id_entry = pdev->id_entry; |
| 1192 | if (!id_entry) { |
| 1193 | dev_err(&pdev->dev, "unknown fsi device\n"); |
| 1194 | return -ENODEV; |
| 1195 | } |
| 1196 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1197 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 1198 | irq = platform_get_irq(pdev, 0); |
Uwe Kleine-König | b6aa179 | 2009-12-16 17:10:09 +0100 | [diff] [blame] | 1199 | if (!res || (int)irq <= 0) { |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1200 | dev_err(&pdev->dev, "Not enough FSI platform resources.\n"); |
| 1201 | ret = -ENODEV; |
| 1202 | goto exit; |
| 1203 | } |
| 1204 | |
| 1205 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
| 1206 | if (!master) { |
| 1207 | dev_err(&pdev->dev, "Could not allocate master\n"); |
| 1208 | ret = -ENOMEM; |
| 1209 | goto exit; |
| 1210 | } |
| 1211 | |
| 1212 | master->base = ioremap_nocache(res->start, resource_size(res)); |
| 1213 | if (!master->base) { |
| 1214 | ret = -ENXIO; |
| 1215 | dev_err(&pdev->dev, "Unable to ioremap FSI registers.\n"); |
| 1216 | goto exit_kfree; |
| 1217 | } |
| 1218 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1219 | /* master setting */ |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1220 | master->irq = irq; |
| 1221 | master->info = pdev->dev.platform_data; |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1222 | master->core = (struct fsi_core *)id_entry->driver_data; |
Kuninori Morimoto | 8fc176d | 2010-01-28 13:46:16 +0900 | [diff] [blame] | 1223 | spin_lock_init(&master->lock); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1224 | |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1225 | /* FSI A setting */ |
| 1226 | master->fsia.base = master->base; |
| 1227 | master->fsia.master = master; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1228 | |
| 1229 | /* FSI B setting */ |
| 1230 | master->fsib.base = master->base + 0x40; |
| 1231 | master->fsib.master = master; |
Kuninori Morimoto | 3bc2807 | 2010-07-29 16:48:32 +0900 | [diff] [blame] | 1232 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1233 | pm_runtime_enable(&pdev->dev); |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1234 | dev_set_drvdata(&pdev->dev, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1235 | |
Kuninori Morimoto | b9c9f96 | 2011-04-08 15:09:17 +0900 | [diff] [blame] | 1236 | pm_runtime_get_sync(&pdev->dev); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1237 | fsi_soft_all_reset(master); |
Kuninori Morimoto | b9c9f96 | 2011-04-08 15:09:17 +0900 | [diff] [blame] | 1238 | pm_runtime_put_sync(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1239 | |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1240 | ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED, |
| 1241 | id_entry->name, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1242 | if (ret) { |
| 1243 | dev_err(&pdev->dev, "irq request err\n"); |
Kuninori Morimoto | 9ddc9aa | 2009-10-30 12:02:39 +0900 | [diff] [blame] | 1244 | goto exit_iounmap; |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1245 | } |
| 1246 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1247 | ret = snd_soc_register_platform(&pdev->dev, &fsi_soc_platform); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1248 | if (ret < 0) { |
| 1249 | dev_err(&pdev->dev, "cannot snd soc register\n"); |
| 1250 | goto exit_free_irq; |
| 1251 | } |
| 1252 | |
Kuninori Morimoto | 0b5ec87 | 2011-04-08 15:09:02 +0900 | [diff] [blame] | 1253 | ret = snd_soc_register_dais(&pdev->dev, fsi_soc_dai, |
| 1254 | ARRAY_SIZE(fsi_soc_dai)); |
| 1255 | if (ret < 0) { |
| 1256 | dev_err(&pdev->dev, "cannot snd dai register\n"); |
| 1257 | goto exit_snd_soc; |
| 1258 | } |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1259 | |
Kuninori Morimoto | 0b5ec87 | 2011-04-08 15:09:02 +0900 | [diff] [blame] | 1260 | return ret; |
| 1261 | |
| 1262 | exit_snd_soc: |
| 1263 | snd_soc_unregister_platform(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1264 | exit_free_irq: |
| 1265 | free_irq(irq, master); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1266 | exit_iounmap: |
| 1267 | iounmap(master->base); |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1268 | pm_runtime_disable(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1269 | exit_kfree: |
| 1270 | kfree(master); |
| 1271 | master = NULL; |
| 1272 | exit: |
| 1273 | return ret; |
| 1274 | } |
| 1275 | |
| 1276 | static int fsi_remove(struct platform_device *pdev) |
| 1277 | { |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1278 | struct fsi_master *master; |
| 1279 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1280 | master = dev_get_drvdata(&pdev->dev); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1281 | |
Kuninori Morimoto | d985f27 | 2011-04-08 15:09:25 +0900 | [diff] [blame] | 1282 | free_irq(master->irq, master); |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1283 | pm_runtime_disable(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1284 | |
Kuninori Morimoto | d985f27 | 2011-04-08 15:09:25 +0900 | [diff] [blame] | 1285 | snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(fsi_soc_dai)); |
| 1286 | snd_soc_unregister_platform(&pdev->dev); |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1287 | |
| 1288 | iounmap(master->base); |
| 1289 | kfree(master); |
Kuninori Morimoto | 71f6e06 | 2009-12-02 15:11:08 +0900 | [diff] [blame] | 1290 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1291 | return 0; |
| 1292 | } |
| 1293 | |
Kuninori Morimoto | 106c79e | 2011-04-21 10:33:47 +0900 | [diff] [blame^] | 1294 | static void __fsi_suspend(struct fsi_priv *fsi, |
| 1295 | struct device *dev, |
| 1296 | set_rate_func set_rate) |
| 1297 | { |
| 1298 | fsi->saved_do_fmt = fsi_reg_read(fsi, DO_FMT); |
| 1299 | fsi->saved_di_fmt = fsi_reg_read(fsi, DI_FMT); |
| 1300 | fsi->saved_ckg1 = fsi_reg_read(fsi, CKG1); |
| 1301 | fsi->saved_ckg2 = fsi_reg_read(fsi, CKG2); |
| 1302 | fsi->saved_out_sel = fsi_reg_read(fsi, OUT_SEL); |
| 1303 | |
| 1304 | if (fsi_is_clk_master(fsi)) |
| 1305 | set_rate(dev, fsi_is_port_a(fsi), fsi->rate, 0); |
| 1306 | } |
| 1307 | |
| 1308 | static void __fsi_resume(struct fsi_priv *fsi, |
| 1309 | struct device *dev, |
| 1310 | set_rate_func set_rate) |
| 1311 | { |
| 1312 | fsi_reg_write(fsi, DO_FMT, fsi->saved_do_fmt); |
| 1313 | fsi_reg_write(fsi, DI_FMT, fsi->saved_di_fmt); |
| 1314 | fsi_reg_write(fsi, CKG1, fsi->saved_ckg1); |
| 1315 | fsi_reg_write(fsi, CKG2, fsi->saved_ckg2); |
| 1316 | fsi_reg_write(fsi, OUT_SEL, fsi->saved_out_sel); |
| 1317 | |
| 1318 | if (fsi_is_clk_master(fsi)) |
| 1319 | set_rate(dev, fsi_is_port_a(fsi), fsi->rate, 1); |
| 1320 | } |
| 1321 | |
| 1322 | static int fsi_suspend(struct device *dev) |
| 1323 | { |
| 1324 | struct fsi_master *master = dev_get_drvdata(dev); |
| 1325 | set_rate_func set_rate = fsi_get_info_set_rate(master); |
| 1326 | |
| 1327 | pm_runtime_get_sync(dev); |
| 1328 | |
| 1329 | __fsi_suspend(&master->fsia, dev, set_rate); |
| 1330 | __fsi_suspend(&master->fsib, dev, set_rate); |
| 1331 | |
| 1332 | master->saved_a_mclk = fsi_core_read(master, a_mclk); |
| 1333 | master->saved_b_mclk = fsi_core_read(master, b_mclk); |
| 1334 | master->saved_iemsk = fsi_core_read(master, iemsk); |
| 1335 | master->saved_imsk = fsi_core_read(master, imsk); |
| 1336 | master->saved_clk_rst = fsi_master_read(master, CLK_RST); |
| 1337 | |
| 1338 | pm_runtime_put_sync(dev); |
| 1339 | |
| 1340 | return 0; |
| 1341 | } |
| 1342 | |
| 1343 | static int fsi_resume(struct device *dev) |
| 1344 | { |
| 1345 | struct fsi_master *master = dev_get_drvdata(dev); |
| 1346 | set_rate_func set_rate = fsi_get_info_set_rate(master); |
| 1347 | |
| 1348 | pm_runtime_get_sync(dev); |
| 1349 | |
| 1350 | __fsi_resume(&master->fsia, dev, set_rate); |
| 1351 | __fsi_resume(&master->fsib, dev, set_rate); |
| 1352 | |
| 1353 | fsi_core_mask_set(master, a_mclk, 0xffff, master->saved_a_mclk); |
| 1354 | fsi_core_mask_set(master, b_mclk, 0xffff, master->saved_b_mclk); |
| 1355 | fsi_core_mask_set(master, iemsk, 0xffff, master->saved_iemsk); |
| 1356 | fsi_core_mask_set(master, imsk, 0xffff, master->saved_imsk); |
| 1357 | fsi_master_mask_set(master, CLK_RST, 0xffff, master->saved_clk_rst); |
| 1358 | |
| 1359 | pm_runtime_put_sync(dev); |
| 1360 | |
| 1361 | return 0; |
| 1362 | } |
| 1363 | |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1364 | static int fsi_runtime_nop(struct device *dev) |
| 1365 | { |
| 1366 | /* Runtime PM callback shared between ->runtime_suspend() |
| 1367 | * and ->runtime_resume(). Simply returns success. |
| 1368 | * |
| 1369 | * This driver re-initializes all registers after |
| 1370 | * pm_runtime_get_sync() anyway so there is no need |
| 1371 | * to save and restore registers here. |
| 1372 | */ |
| 1373 | return 0; |
| 1374 | } |
| 1375 | |
| 1376 | static struct dev_pm_ops fsi_pm_ops = { |
Kuninori Morimoto | 106c79e | 2011-04-21 10:33:47 +0900 | [diff] [blame^] | 1377 | .suspend = fsi_suspend, |
| 1378 | .resume = fsi_resume, |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1379 | .runtime_suspend = fsi_runtime_nop, |
| 1380 | .runtime_resume = fsi_runtime_nop, |
| 1381 | }; |
| 1382 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1383 | static struct fsi_core fsi1_core = { |
| 1384 | .ver = 1, |
| 1385 | |
| 1386 | /* Interrupt */ |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1387 | .int_st = INT_ST, |
| 1388 | .iemsk = IEMSK, |
| 1389 | .imsk = IMSK, |
| 1390 | }; |
| 1391 | |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1392 | static struct fsi_core fsi2_core = { |
| 1393 | .ver = 2, |
| 1394 | |
| 1395 | /* Interrupt */ |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1396 | .int_st = CPU_INT_ST, |
| 1397 | .iemsk = CPU_IEMSK, |
| 1398 | .imsk = CPU_IMSK, |
Kuninori Morimoto | 2b0e730 | 2010-12-03 17:37:44 +0900 | [diff] [blame] | 1399 | .a_mclk = A_MST_CTLR, |
| 1400 | .b_mclk = B_MST_CTLR, |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1401 | }; |
| 1402 | |
| 1403 | static struct platform_device_id fsi_id_table[] = { |
Kuninori Morimoto | 73b92c1 | 2010-07-13 12:13:04 +0900 | [diff] [blame] | 1404 | { "sh_fsi", (kernel_ulong_t)&fsi1_core }, |
| 1405 | { "sh_fsi2", (kernel_ulong_t)&fsi2_core }, |
Guennadi Liakhovetski | 05c6945 | 2010-10-05 17:54:28 +0200 | [diff] [blame] | 1406 | {}, |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1407 | }; |
Dzianis Kahanovich | d85a6d7 | 2010-09-17 16:42:05 +0300 | [diff] [blame] | 1408 | MODULE_DEVICE_TABLE(platform, fsi_id_table); |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1409 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1410 | static struct platform_driver fsi_driver = { |
| 1411 | .driver = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1412 | .name = "fsi-pcm-audio", |
Kuninori Morimoto | 785d1c4 | 2009-11-30 20:24:48 +0900 | [diff] [blame] | 1413 | .pm = &fsi_pm_ops, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1414 | }, |
| 1415 | .probe = fsi_probe, |
| 1416 | .remove = fsi_remove, |
Kuninori Morimoto | cc780d3 | 2010-03-25 19:15:53 +0900 | [diff] [blame] | 1417 | .id_table = fsi_id_table, |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1418 | }; |
| 1419 | |
| 1420 | static int __init fsi_mobile_init(void) |
| 1421 | { |
| 1422 | return platform_driver_register(&fsi_driver); |
| 1423 | } |
| 1424 | |
| 1425 | static void __exit fsi_mobile_exit(void) |
| 1426 | { |
| 1427 | platform_driver_unregister(&fsi_driver); |
| 1428 | } |
Dzianis Kahanovich | d85a6d7 | 2010-09-17 16:42:05 +0300 | [diff] [blame] | 1429 | |
Kuninori Morimoto | a4d7d55 | 2009-08-20 21:01:05 +0900 | [diff] [blame] | 1430 | module_init(fsi_mobile_init); |
| 1431 | module_exit(fsi_mobile_exit); |
| 1432 | |
| 1433 | MODULE_LICENSE("GPL"); |
| 1434 | MODULE_DESCRIPTION("SuperH onchip FSI audio driver"); |
| 1435 | MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>"); |
Guennadi Liakhovetski | b3c27b5 | 2011-04-15 20:17:34 +0200 | [diff] [blame] | 1436 | MODULE_ALIAS("platform:fsi-pcm-audio"); |