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a4d7d550 KM |
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 | ||
a4d7d550 | 15 | #include <linux/delay.h> |
7da9ced6 | 16 | #include <linux/dma-mapping.h> |
785d1c45 | 17 | #include <linux/pm_runtime.h> |
a4d7d550 | 18 | #include <linux/io.h> |
9e7b6d60 KM |
19 | #include <linux/of.h> |
20 | #include <linux/of_device.h> | |
7da9ced6 KM |
21 | #include <linux/scatterlist.h> |
22 | #include <linux/sh_dma.h> | |
5a0e3ad6 | 23 | #include <linux/slab.h> |
da155d5b | 24 | #include <linux/module.h> |
57451e43 | 25 | #include <linux/workqueue.h> |
a4d7d550 | 26 | #include <sound/soc.h> |
ab6f6d85 | 27 | #include <sound/pcm_params.h> |
a4d7d550 | 28 | #include <sound/sh_fsi.h> |
a4d7d550 | 29 | |
e8c8b631 KM |
30 | /* PortA/PortB register */ |
31 | #define REG_DO_FMT 0x0000 | |
32 | #define REG_DOFF_CTL 0x0004 | |
33 | #define REG_DOFF_ST 0x0008 | |
34 | #define REG_DI_FMT 0x000C | |
35 | #define REG_DIFF_CTL 0x0010 | |
36 | #define REG_DIFF_ST 0x0014 | |
37 | #define REG_CKG1 0x0018 | |
38 | #define REG_CKG2 0x001C | |
39 | #define REG_DIDT 0x0020 | |
40 | #define REG_DODT 0x0024 | |
41 | #define REG_MUTE_ST 0x0028 | |
65ff03f4 | 42 | #define REG_OUT_DMAC 0x002C |
e8c8b631 | 43 | #define REG_OUT_SEL 0x0030 |
65ff03f4 | 44 | #define REG_IN_DMAC 0x0038 |
cc780d38 | 45 | |
43fa95ca KM |
46 | /* master register */ |
47 | #define MST_CLK_RST 0x0210 | |
48 | #define MST_SOFT_RST 0x0214 | |
49 | #define MST_FIFO_SZ 0x0218 | |
50 | ||
51 | /* core register (depend on FSI version) */ | |
3bc28070 KM |
52 | #define A_MST_CTLR 0x0180 |
53 | #define B_MST_CTLR 0x01A0 | |
cc780d38 KM |
54 | #define CPU_INT_ST 0x01F4 |
55 | #define CPU_IEMSK 0x01F8 | |
56 | #define CPU_IMSK 0x01FC | |
a4d7d550 KM |
57 | #define INT_ST 0x0200 |
58 | #define IEMSK 0x0204 | |
59 | #define IMSK 0x0208 | |
a4d7d550 KM |
60 | |
61 | /* DO_FMT */ | |
62 | /* DI_FMT */ | |
7da9ced6 | 63 | #define CR_BWS_MASK (0x3 << 20) /* FSI2 */ |
f7d711e3 KM |
64 | #define CR_BWS_24 (0x0 << 20) /* FSI2 */ |
65 | #define CR_BWS_16 (0x1 << 20) /* FSI2 */ | |
66 | #define CR_BWS_20 (0x2 << 20) /* FSI2 */ | |
67 | ||
68 | #define CR_DTMD_PCM (0x0 << 8) /* FSI2 */ | |
69 | #define CR_DTMD_SPDIF_PCM (0x1 << 8) /* FSI2 */ | |
70 | #define CR_DTMD_SPDIF_STREAM (0x2 << 8) /* FSI2 */ | |
71 | ||
a7ffb52b KM |
72 | #define CR_MONO (0x0 << 4) |
73 | #define CR_MONO_D (0x1 << 4) | |
74 | #define CR_PCM (0x2 << 4) | |
75 | #define CR_I2S (0x3 << 4) | |
76 | #define CR_TDM (0x4 << 4) | |
77 | #define CR_TDM_D (0x5 << 4) | |
a4d7d550 | 78 | |
7da9ced6 KM |
79 | /* OUT_DMAC */ |
80 | /* IN_DMAC */ | |
81 | #define VDMD_MASK (0x3 << 4) | |
82 | #define VDMD_FRONT (0x0 << 4) /* Package in front */ | |
83 | #define VDMD_BACK (0x1 << 4) /* Package in back */ | |
84 | #define VDMD_STREAM (0x2 << 4) /* Stream mode(16bit * 2) */ | |
85 | ||
86 | #define DMA_ON (0x1 << 0) | |
87 | ||
a4d7d550 KM |
88 | /* DOFF_CTL */ |
89 | /* DIFF_CTL */ | |
90 | #define IRQ_HALF 0x00100000 | |
91 | #define FIFO_CLR 0x00000001 | |
92 | ||
93 | /* DOFF_ST */ | |
94 | #define ERR_OVER 0x00000010 | |
95 | #define ERR_UNDER 0x00000001 | |
59c3b003 | 96 | #define ST_ERR (ERR_OVER | ERR_UNDER) |
a4d7d550 | 97 | |
ccad7b44 KM |
98 | /* CKG1 */ |
99 | #define ACKMD_MASK 0x00007000 | |
100 | #define BPFMD_MASK 0x00000700 | |
4d805f7b KM |
101 | #define DIMD (1 << 4) |
102 | #define DOMD (1 << 0) | |
ccad7b44 | 103 | |
3bc28070 KM |
104 | /* A/B MST_CTLR */ |
105 | #define BP (1 << 4) /* Fix the signal of Biphase output */ | |
106 | #define SE (1 << 0) /* Fix the master clock */ | |
107 | ||
a4d7d550 | 108 | /* CLK_RST */ |
1f5e2a31 KM |
109 | #define CRB (1 << 4) |
110 | #define CRA (1 << 0) | |
a4d7d550 | 111 | |
cf6edd00 KM |
112 | /* IO SHIFT / MACRO */ |
113 | #define BI_SHIFT 12 | |
114 | #define BO_SHIFT 8 | |
115 | #define AI_SHIFT 4 | |
116 | #define AO_SHIFT 0 | |
117 | #define AB_IO(param, shift) (param << shift) | |
a4d7d550 | 118 | |
feb58cff KM |
119 | /* SOFT_RST */ |
120 | #define PBSR (1 << 12) /* Port B Software Reset */ | |
121 | #define PASR (1 << 8) /* Port A Software Reset */ | |
122 | #define IR (1 << 4) /* Interrupt Reset */ | |
123 | #define FSISR (1 << 0) /* Software Reset */ | |
124 | ||
f7d711e3 KM |
125 | /* OUT_SEL (FSI2) */ |
126 | #define DMMD (1 << 4) /* SPDIF output timing 0: Biphase only */ | |
127 | /* 1: Biphase and serial */ | |
128 | ||
4a942b45 | 129 | /* FIFO_SZ */ |
cf6edd00 | 130 | #define FIFO_SZ_MASK 0x7 |
4a942b45 | 131 | |
a4d7d550 KM |
132 | #define FSI_RATES SNDRV_PCM_RATE_8000_96000 |
133 | ||
134 | #define FSI_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) | |
135 | ||
766812e6 KM |
136 | /* |
137 | * bus options | |
138 | * | |
139 | * 0x000000BA | |
140 | * | |
141 | * A : sample widtht 16bit setting | |
142 | * B : sample widtht 24bit setting | |
143 | */ | |
144 | ||
145 | #define SHIFT_16DATA 0 | |
146 | #define SHIFT_24DATA 4 | |
147 | ||
148 | #define PACKAGE_24BITBUS_BACK 0 | |
149 | #define PACKAGE_24BITBUS_FRONT 1 | |
150 | #define PACKAGE_16BITBUS_STREAM 2 | |
151 | ||
152 | #define BUSOP_SET(s, a) ((a) << SHIFT_ ## s ## DATA) | |
153 | #define BUSOP_GET(s, a) (((a) >> SHIFT_ ## s ## DATA) & 0xF) | |
154 | ||
5bfb9ad0 KM |
155 | /* |
156 | * FSI driver use below type name for variable | |
157 | * | |
5bfb9ad0 | 158 | * xxx_num : number of data |
2e651baf KM |
159 | * xxx_pos : position of data |
160 | * xxx_capa : capacity of data | |
161 | */ | |
162 | ||
163 | /* | |
164 | * period/frame/sample image | |
165 | * | |
166 | * ex) PCM (2ch) | |
167 | * | |
168 | * period pos period pos | |
169 | * [n] [n + 1] | |
170 | * |<-------------------- period--------------------->| | |
171 | * ==|============================================ ... =|== | |
172 | * | | | |
173 | * ||<----- frame ----->|<------ frame ----->| ... | | |
174 | * |+--------------------+--------------------+- ... | | |
175 | * ||[ sample ][ sample ]|[ sample ][ sample ]| ... | | |
176 | * |+--------------------+--------------------+- ... | | |
177 | * ==|============================================ ... =|== | |
178 | */ | |
179 | ||
180 | /* | |
181 | * FSI FIFO image | |
182 | * | |
183 | * | | | |
184 | * | | | |
185 | * | [ sample ] | | |
186 | * | [ sample ] | | |
187 | * | [ sample ] | | |
188 | * | [ sample ] | | |
189 | * --> go to codecs | |
5bfb9ad0 KM |
190 | */ |
191 | ||
ab6f6d85 KM |
192 | /* |
193 | * FSI clock | |
194 | * | |
195 | * FSIxCLK [CPG] (ick) -------> | | |
196 | * |-> FSI_DIV (div)-> FSI2 | |
197 | * FSIxCK [external] (xck) ---> | | |
198 | */ | |
199 | ||
c8fe2574 KM |
200 | /* |
201 | * struct | |
202 | */ | |
a4d7d550 | 203 | |
5e97313a | 204 | struct fsi_stream_handler; |
93193c2b | 205 | struct fsi_stream { |
a4d7d550 | 206 | |
5e97313a KM |
207 | /* |
208 | * these are initialized by fsi_stream_init() | |
209 | */ | |
210 | struct snd_pcm_substream *substream; | |
2e651baf KM |
211 | int fifo_sample_capa; /* sample capacity of FSI FIFO */ |
212 | int buff_sample_capa; /* sample capacity of ALSA buffer */ | |
213 | int buff_sample_pos; /* sample position of ALSA buffer */ | |
214 | int period_samples; /* sample number / 1 period */ | |
215 | int period_pos; /* current period position */ | |
c1e6f10e | 216 | int sample_width; /* sample width */ |
1ec9bc35 KM |
217 | int uerr_num; |
218 | int oerr_num; | |
5e97313a | 219 | |
766812e6 KM |
220 | /* |
221 | * bus options | |
222 | */ | |
223 | u32 bus_option; | |
224 | ||
5e97313a KM |
225 | /* |
226 | * thse are initialized by fsi_handler_init() | |
227 | */ | |
228 | struct fsi_stream_handler *handler; | |
229 | struct fsi_priv *priv; | |
7da9ced6 KM |
230 | |
231 | /* | |
232 | * these are for DMAEngine | |
233 | */ | |
234 | struct dma_chan *chan; | |
a0732782 | 235 | int dma_id; |
93193c2b KM |
236 | }; |
237 | ||
ab6f6d85 KM |
238 | struct fsi_clk { |
239 | /* see [FSI clock] */ | |
240 | struct clk *own; | |
241 | struct clk *xck; | |
242 | struct clk *ick; | |
243 | struct clk *div; | |
244 | int (*set_rate)(struct device *dev, | |
6cbdbffb | 245 | struct fsi_priv *fsi); |
ab6f6d85 KM |
246 | |
247 | unsigned long rate; | |
248 | unsigned int count; | |
249 | }; | |
250 | ||
93193c2b KM |
251 | struct fsi_priv { |
252 | void __iomem *base; | |
7c6cc8f2 | 253 | phys_addr_t phys; |
93193c2b KM |
254 | struct fsi_master *master; |
255 | ||
256 | struct fsi_stream playback; | |
257 | struct fsi_stream capture; | |
3bc28070 | 258 | |
ab6f6d85 KM |
259 | struct fsi_clk clock; |
260 | ||
9c59dd34 | 261 | u32 fmt; |
9478e0b6 | 262 | |
6a9ebad8 | 263 | int chan_num:16; |
9f98cd69 LPC |
264 | unsigned int clk_master:1; |
265 | unsigned int clk_cpg:1; | |
266 | unsigned int spdif:1; | |
267 | unsigned int enable_stream:1; | |
268 | unsigned int bit_clk_inv:1; | |
269 | unsigned int lr_clk_inv:1; | |
a4d7d550 KM |
270 | }; |
271 | ||
5e97313a | 272 | struct fsi_stream_handler { |
83344027 KM |
273 | int (*init)(struct fsi_priv *fsi, struct fsi_stream *io); |
274 | int (*quit)(struct fsi_priv *fsi, struct fsi_stream *io); | |
b1226dc5 | 275 | int (*probe)(struct fsi_priv *fsi, struct fsi_stream *io, struct device *dev); |
5e97313a KM |
276 | int (*transfer)(struct fsi_priv *fsi, struct fsi_stream *io); |
277 | int (*remove)(struct fsi_priv *fsi, struct fsi_stream *io); | |
c375b2d7 | 278 | int (*start_stop)(struct fsi_priv *fsi, struct fsi_stream *io, |
180346ed | 279 | int enable); |
5e97313a KM |
280 | }; |
281 | #define fsi_stream_handler_call(io, func, args...) \ | |
282 | (!(io) ? -ENODEV : \ | |
283 | !((io)->handler->func) ? 0 : \ | |
284 | (io)->handler->func(args)) | |
285 | ||
73b92c1f KM |
286 | struct fsi_core { |
287 | int ver; | |
288 | ||
cc780d38 KM |
289 | u32 int_st; |
290 | u32 iemsk; | |
291 | u32 imsk; | |
2b0e7302 KM |
292 | u32 a_mclk; |
293 | u32 b_mclk; | |
cc780d38 KM |
294 | }; |
295 | ||
a4d7d550 KM |
296 | struct fsi_master { |
297 | void __iomem *base; | |
a4d7d550 KM |
298 | struct fsi_priv fsia; |
299 | struct fsi_priv fsib; | |
9e7b6d60 | 300 | const struct fsi_core *core; |
8fc176d5 | 301 | spinlock_t lock; |
a4d7d550 KM |
302 | }; |
303 | ||
7b1b3331 KM |
304 | static int fsi_stream_is_play(struct fsi_priv *fsi, struct fsi_stream *io); |
305 | ||
c8fe2574 KM |
306 | /* |
307 | * basic read write function | |
308 | */ | |
a4d7d550 | 309 | |
ca7aceef | 310 | static void __fsi_reg_write(u32 __iomem *reg, u32 data) |
a4d7d550 KM |
311 | { |
312 | /* valid data area is 24bit */ | |
313 | data &= 0x00ffffff; | |
314 | ||
0f69d978 | 315 | __raw_writel(data, reg); |
a4d7d550 KM |
316 | } |
317 | ||
ca7aceef | 318 | static u32 __fsi_reg_read(u32 __iomem *reg) |
a4d7d550 | 319 | { |
0f69d978 | 320 | return __raw_readl(reg); |
a4d7d550 KM |
321 | } |
322 | ||
ca7aceef | 323 | static void __fsi_reg_mask_set(u32 __iomem *reg, u32 mask, u32 data) |
a4d7d550 KM |
324 | { |
325 | u32 val = __fsi_reg_read(reg); | |
326 | ||
327 | val &= ~mask; | |
328 | val |= data & mask; | |
329 | ||
0f69d978 | 330 | __fsi_reg_write(reg, val); |
a4d7d550 KM |
331 | } |
332 | ||
e8c8b631 | 333 | #define fsi_reg_write(p, r, d)\ |
8918b843 | 334 | __fsi_reg_write((p->base + REG_##r), d) |
a4d7d550 | 335 | |
e8c8b631 | 336 | #define fsi_reg_read(p, r)\ |
8918b843 | 337 | __fsi_reg_read((p->base + REG_##r)) |
a4d7d550 | 338 | |
e8c8b631 | 339 | #define fsi_reg_mask_set(p, r, m, d)\ |
8918b843 | 340 | __fsi_reg_mask_set((p->base + REG_##r), m, d) |
a4d7d550 | 341 | |
43fa95ca KM |
342 | #define fsi_master_read(p, r) _fsi_master_read(p, MST_##r) |
343 | #define fsi_core_read(p, r) _fsi_master_read(p, p->core->r) | |
344 | static u32 _fsi_master_read(struct fsi_master *master, u32 reg) | |
a4d7d550 | 345 | { |
8fc176d5 KM |
346 | u32 ret; |
347 | unsigned long flags; | |
348 | ||
8fc176d5 | 349 | spin_lock_irqsave(&master->lock, flags); |
ca7aceef | 350 | ret = __fsi_reg_read(master->base + reg); |
8fc176d5 KM |
351 | spin_unlock_irqrestore(&master->lock, flags); |
352 | ||
353 | return ret; | |
a4d7d550 KM |
354 | } |
355 | ||
43fa95ca KM |
356 | #define fsi_master_mask_set(p, r, m, d) _fsi_master_mask_set(p, MST_##r, m, d) |
357 | #define fsi_core_mask_set(p, r, m, d) _fsi_master_mask_set(p, p->core->r, m, d) | |
358 | static void _fsi_master_mask_set(struct fsi_master *master, | |
71f6e064 | 359 | u32 reg, u32 mask, u32 data) |
a4d7d550 | 360 | { |
8fc176d5 KM |
361 | unsigned long flags; |
362 | ||
8fc176d5 | 363 | spin_lock_irqsave(&master->lock, flags); |
ca7aceef | 364 | __fsi_reg_mask_set(master->base + reg, mask, data); |
8fc176d5 | 365 | spin_unlock_irqrestore(&master->lock, flags); |
a4d7d550 KM |
366 | } |
367 | ||
c8fe2574 KM |
368 | /* |
369 | * basic function | |
370 | */ | |
284c6f65 KM |
371 | static int fsi_version(struct fsi_master *master) |
372 | { | |
373 | return master->core->ver; | |
374 | } | |
a4d7d550 | 375 | |
71f6e064 | 376 | static struct fsi_master *fsi_get_master(struct fsi_priv *fsi) |
a4d7d550 | 377 | { |
71f6e064 | 378 | return fsi->master; |
a4d7d550 KM |
379 | } |
380 | ||
6a9ebad8 KM |
381 | static int fsi_is_clk_master(struct fsi_priv *fsi) |
382 | { | |
383 | return fsi->clk_master; | |
384 | } | |
385 | ||
a4d7d550 KM |
386 | static int fsi_is_port_a(struct fsi_priv *fsi) |
387 | { | |
71f6e064 KM |
388 | return fsi->master->base == fsi->base; |
389 | } | |
a4d7d550 | 390 | |
9478e0b6 KM |
391 | static int fsi_is_spdif(struct fsi_priv *fsi) |
392 | { | |
393 | return fsi->spdif; | |
394 | } | |
395 | ||
2522acd2 KM |
396 | static int fsi_is_enable_stream(struct fsi_priv *fsi) |
397 | { | |
398 | return fsi->enable_stream; | |
399 | } | |
400 | ||
a449e467 KM |
401 | static int fsi_is_play(struct snd_pcm_substream *substream) |
402 | { | |
403 | return substream->stream == SNDRV_PCM_STREAM_PLAYBACK; | |
404 | } | |
405 | ||
142e8174 | 406 | static struct snd_soc_dai *fsi_get_dai(struct snd_pcm_substream *substream) |
71f6e064 KM |
407 | { |
408 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
142e8174 | 409 | |
f0fba2ad | 410 | return rtd->cpu_dai; |
142e8174 KM |
411 | } |
412 | ||
0d032c19 | 413 | static struct fsi_priv *fsi_get_priv_frm_dai(struct snd_soc_dai *dai) |
142e8174 | 414 | { |
f0fba2ad | 415 | struct fsi_master *master = snd_soc_dai_get_drvdata(dai); |
a4d7d550 | 416 | |
f0fba2ad LG |
417 | if (dai->id == 0) |
418 | return &master->fsia; | |
419 | else | |
420 | return &master->fsib; | |
a4d7d550 KM |
421 | } |
422 | ||
0d032c19 KM |
423 | static struct fsi_priv *fsi_get_priv(struct snd_pcm_substream *substream) |
424 | { | |
425 | return fsi_get_priv_frm_dai(fsi_get_dai(substream)); | |
426 | } | |
427 | ||
938e2a8d | 428 | static u32 fsi_get_port_shift(struct fsi_priv *fsi, struct fsi_stream *io) |
a4d7d550 | 429 | { |
938e2a8d | 430 | int is_play = fsi_stream_is_play(fsi, io); |
a4d7d550 | 431 | int is_porta = fsi_is_port_a(fsi); |
cf6edd00 | 432 | u32 shift; |
a4d7d550 KM |
433 | |
434 | if (is_porta) | |
cf6edd00 | 435 | shift = is_play ? AO_SHIFT : AI_SHIFT; |
a4d7d550 | 436 | else |
cf6edd00 | 437 | shift = is_play ? BO_SHIFT : BI_SHIFT; |
a4d7d550 | 438 | |
cf6edd00 | 439 | return shift; |
a4d7d550 KM |
440 | } |
441 | ||
2e651baf KM |
442 | static int fsi_frame2sample(struct fsi_priv *fsi, int frames) |
443 | { | |
444 | return frames * fsi->chan_num; | |
445 | } | |
446 | ||
447 | static int fsi_sample2frame(struct fsi_priv *fsi, int samples) | |
448 | { | |
449 | return samples / fsi->chan_num; | |
450 | } | |
451 | ||
7b1b3331 KM |
452 | static int fsi_get_current_fifo_samples(struct fsi_priv *fsi, |
453 | struct fsi_stream *io) | |
4e62d84d | 454 | { |
7b1b3331 | 455 | int is_play = fsi_stream_is_play(fsi, io); |
4e62d84d KM |
456 | u32 status; |
457 | int frames; | |
458 | ||
459 | status = is_play ? | |
460 | fsi_reg_read(fsi, DOFF_ST) : | |
461 | fsi_reg_read(fsi, DIFF_ST); | |
462 | ||
463 | frames = 0x1ff & (status >> 8); | |
464 | ||
465 | return fsi_frame2sample(fsi, frames); | |
466 | } | |
467 | ||
468 | static void fsi_count_fifo_err(struct fsi_priv *fsi) | |
469 | { | |
470 | u32 ostatus = fsi_reg_read(fsi, DOFF_ST); | |
471 | u32 istatus = fsi_reg_read(fsi, DIFF_ST); | |
472 | ||
473 | if (ostatus & ERR_OVER) | |
474 | fsi->playback.oerr_num++; | |
475 | ||
476 | if (ostatus & ERR_UNDER) | |
477 | fsi->playback.uerr_num++; | |
478 | ||
479 | if (istatus & ERR_OVER) | |
480 | fsi->capture.oerr_num++; | |
481 | ||
482 | if (istatus & ERR_UNDER) | |
483 | fsi->capture.uerr_num++; | |
484 | ||
485 | fsi_reg_write(fsi, DOFF_ST, 0); | |
486 | fsi_reg_write(fsi, DIFF_ST, 0); | |
487 | } | |
488 | ||
489 | /* | |
490 | * fsi_stream_xx() function | |
491 | */ | |
a449e467 KM |
492 | static inline int fsi_stream_is_play(struct fsi_priv *fsi, |
493 | struct fsi_stream *io) | |
4e62d84d | 494 | { |
a449e467 | 495 | return &fsi->playback == io; |
4e62d84d KM |
496 | } |
497 | ||
498 | static inline struct fsi_stream *fsi_stream_get(struct fsi_priv *fsi, | |
938e2a8d | 499 | struct snd_pcm_substream *substream) |
4e62d84d | 500 | { |
938e2a8d | 501 | return fsi_is_play(substream) ? &fsi->playback : &fsi->capture; |
4e62d84d KM |
502 | } |
503 | ||
cda828ca | 504 | static int fsi_stream_is_working(struct fsi_priv *fsi, |
938e2a8d | 505 | struct fsi_stream *io) |
cda828ca | 506 | { |
cda828ca KM |
507 | struct fsi_master *master = fsi_get_master(fsi); |
508 | unsigned long flags; | |
509 | int ret; | |
510 | ||
511 | spin_lock_irqsave(&master->lock, flags); | |
97df8187 | 512 | ret = !!(io->substream && io->substream->runtime); |
cda828ca KM |
513 | spin_unlock_irqrestore(&master->lock, flags); |
514 | ||
515 | return ret; | |
516 | } | |
517 | ||
5e97313a KM |
518 | static struct fsi_priv *fsi_stream_to_priv(struct fsi_stream *io) |
519 | { | |
520 | return io->priv; | |
521 | } | |
522 | ||
8c415295 | 523 | static void fsi_stream_init(struct fsi_priv *fsi, |
938e2a8d | 524 | struct fsi_stream *io, |
0ffe296a | 525 | struct snd_pcm_substream *substream) |
a4d7d550 | 526 | { |
0ffe296a | 527 | struct snd_pcm_runtime *runtime = substream->runtime; |
2da65892 KM |
528 | struct fsi_master *master = fsi_get_master(fsi); |
529 | unsigned long flags; | |
93193c2b | 530 | |
2da65892 | 531 | spin_lock_irqsave(&master->lock, flags); |
93193c2b | 532 | io->substream = substream; |
2e651baf KM |
533 | io->buff_sample_capa = fsi_frame2sample(fsi, runtime->buffer_size); |
534 | io->buff_sample_pos = 0; | |
535 | io->period_samples = fsi_frame2sample(fsi, runtime->period_size); | |
536 | io->period_pos = 0; | |
c1e6f10e | 537 | io->sample_width = samples_to_bytes(runtime, 1); |
766812e6 | 538 | io->bus_option = 0; |
1ec9bc35 KM |
539 | io->oerr_num = -1; /* ignore 1st err */ |
540 | io->uerr_num = -1; /* ignore 1st err */ | |
83344027 | 541 | fsi_stream_handler_call(io, init, fsi, io); |
2da65892 | 542 | spin_unlock_irqrestore(&master->lock, flags); |
a4d7d550 KM |
543 | } |
544 | ||
938e2a8d | 545 | static void fsi_stream_quit(struct fsi_priv *fsi, struct fsi_stream *io) |
a4d7d550 | 546 | { |
1ec9bc35 | 547 | struct snd_soc_dai *dai = fsi_get_dai(io->substream); |
2da65892 KM |
548 | struct fsi_master *master = fsi_get_master(fsi); |
549 | unsigned long flags; | |
1ec9bc35 | 550 | |
2da65892 | 551 | spin_lock_irqsave(&master->lock, flags); |
1ec9bc35 KM |
552 | |
553 | if (io->oerr_num > 0) | |
554 | dev_err(dai->dev, "over_run = %d\n", io->oerr_num); | |
555 | ||
556 | if (io->uerr_num > 0) | |
557 | dev_err(dai->dev, "under_run = %d\n", io->uerr_num); | |
93193c2b | 558 | |
83344027 | 559 | fsi_stream_handler_call(io, quit, fsi, io); |
93193c2b | 560 | io->substream = NULL; |
2e651baf KM |
561 | io->buff_sample_capa = 0; |
562 | io->buff_sample_pos = 0; | |
563 | io->period_samples = 0; | |
564 | io->period_pos = 0; | |
c1e6f10e | 565 | io->sample_width = 0; |
766812e6 | 566 | io->bus_option = 0; |
1ec9bc35 KM |
567 | io->oerr_num = 0; |
568 | io->uerr_num = 0; | |
2da65892 | 569 | spin_unlock_irqrestore(&master->lock, flags); |
a4d7d550 KM |
570 | } |
571 | ||
5e97313a KM |
572 | static int fsi_stream_transfer(struct fsi_stream *io) |
573 | { | |
574 | struct fsi_priv *fsi = fsi_stream_to_priv(io); | |
575 | if (!fsi) | |
576 | return -EIO; | |
577 | ||
578 | return fsi_stream_handler_call(io, transfer, fsi, io); | |
579 | } | |
580 | ||
180346ed KM |
581 | #define fsi_stream_start(fsi, io)\ |
582 | fsi_stream_handler_call(io, start_stop, fsi, io, 1) | |
583 | ||
584 | #define fsi_stream_stop(fsi, io)\ | |
585 | fsi_stream_handler_call(io, start_stop, fsi, io, 0) | |
586 | ||
b1226dc5 | 587 | static int fsi_stream_probe(struct fsi_priv *fsi, struct device *dev) |
5e97313a KM |
588 | { |
589 | struct fsi_stream *io; | |
590 | int ret1, ret2; | |
591 | ||
592 | io = &fsi->playback; | |
b1226dc5 | 593 | ret1 = fsi_stream_handler_call(io, probe, fsi, io, dev); |
5e97313a KM |
594 | |
595 | io = &fsi->capture; | |
b1226dc5 | 596 | ret2 = fsi_stream_handler_call(io, probe, fsi, io, dev); |
5e97313a KM |
597 | |
598 | if (ret1 < 0) | |
599 | return ret1; | |
600 | if (ret2 < 0) | |
601 | return ret2; | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | static int fsi_stream_remove(struct fsi_priv *fsi) | |
607 | { | |
608 | struct fsi_stream *io; | |
609 | int ret1, ret2; | |
610 | ||
611 | io = &fsi->playback; | |
612 | ret1 = fsi_stream_handler_call(io, remove, fsi, io); | |
613 | ||
614 | io = &fsi->capture; | |
615 | ret2 = fsi_stream_handler_call(io, remove, fsi, io); | |
616 | ||
617 | if (ret1 < 0) | |
618 | return ret1; | |
619 | if (ret2 < 0) | |
620 | return ret2; | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
766812e6 KM |
625 | /* |
626 | * format/bus/dma setting | |
627 | */ | |
628 | static void fsi_format_bus_setup(struct fsi_priv *fsi, struct fsi_stream *io, | |
629 | u32 bus, struct device *dev) | |
630 | { | |
631 | struct fsi_master *master = fsi_get_master(fsi); | |
632 | int is_play = fsi_stream_is_play(fsi, io); | |
633 | u32 fmt = fsi->fmt; | |
634 | ||
635 | if (fsi_version(master) >= 2) { | |
636 | u32 dma = 0; | |
637 | ||
638 | /* | |
639 | * FSI2 needs DMA/Bus setting | |
640 | */ | |
641 | switch (bus) { | |
642 | case PACKAGE_24BITBUS_FRONT: | |
643 | fmt |= CR_BWS_24; | |
644 | dma |= VDMD_FRONT; | |
645 | dev_dbg(dev, "24bit bus / package in front\n"); | |
646 | break; | |
647 | case PACKAGE_16BITBUS_STREAM: | |
648 | fmt |= CR_BWS_16; | |
649 | dma |= VDMD_STREAM; | |
650 | dev_dbg(dev, "16bit bus / stream mode\n"); | |
651 | break; | |
652 | case PACKAGE_24BITBUS_BACK: | |
653 | default: | |
654 | fmt |= CR_BWS_24; | |
655 | dma |= VDMD_BACK; | |
656 | dev_dbg(dev, "24bit bus / package in back\n"); | |
657 | break; | |
658 | } | |
659 | ||
660 | if (is_play) | |
661 | fsi_reg_write(fsi, OUT_DMAC, dma); | |
662 | else | |
663 | fsi_reg_write(fsi, IN_DMAC, dma); | |
664 | } | |
665 | ||
666 | if (is_play) | |
667 | fsi_reg_write(fsi, DO_FMT, fmt); | |
668 | else | |
669 | fsi_reg_write(fsi, DI_FMT, fmt); | |
670 | } | |
671 | ||
c8fe2574 KM |
672 | /* |
673 | * irq function | |
674 | */ | |
a4d7d550 | 675 | |
938e2a8d | 676 | static void fsi_irq_enable(struct fsi_priv *fsi, struct fsi_stream *io) |
a4d7d550 | 677 | { |
938e2a8d | 678 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, io)); |
71f6e064 | 679 | struct fsi_master *master = fsi_get_master(fsi); |
a4d7d550 | 680 | |
43fa95ca KM |
681 | fsi_core_mask_set(master, imsk, data, data); |
682 | fsi_core_mask_set(master, iemsk, data, data); | |
a4d7d550 KM |
683 | } |
684 | ||
938e2a8d | 685 | static void fsi_irq_disable(struct fsi_priv *fsi, struct fsi_stream *io) |
a4d7d550 | 686 | { |
938e2a8d | 687 | u32 data = AB_IO(1, fsi_get_port_shift(fsi, io)); |
71f6e064 | 688 | struct fsi_master *master = fsi_get_master(fsi); |
a4d7d550 | 689 | |
43fa95ca KM |
690 | fsi_core_mask_set(master, imsk, data, 0); |
691 | fsi_core_mask_set(master, iemsk, data, 0); | |
a4d7d550 KM |
692 | } |
693 | ||
10ea76cc KM |
694 | static u32 fsi_irq_get_status(struct fsi_master *master) |
695 | { | |
43fa95ca | 696 | return fsi_core_read(master, int_st); |
10ea76cc KM |
697 | } |
698 | ||
10ea76cc KM |
699 | static void fsi_irq_clear_status(struct fsi_priv *fsi) |
700 | { | |
701 | u32 data = 0; | |
702 | struct fsi_master *master = fsi_get_master(fsi); | |
703 | ||
938e2a8d KM |
704 | data |= AB_IO(1, fsi_get_port_shift(fsi, &fsi->playback)); |
705 | data |= AB_IO(1, fsi_get_port_shift(fsi, &fsi->capture)); | |
10ea76cc KM |
706 | |
707 | /* clear interrupt factor */ | |
43fa95ca | 708 | fsi_core_mask_set(master, int_st, data, 0); |
10ea76cc KM |
709 | } |
710 | ||
c8fe2574 KM |
711 | /* |
712 | * SPDIF master clock function | |
713 | * | |
714 | * These functions are used later FSI2 | |
715 | */ | |
3bc28070 KM |
716 | static void fsi_spdif_clk_ctrl(struct fsi_priv *fsi, int enable) |
717 | { | |
718 | struct fsi_master *master = fsi_get_master(fsi); | |
2b0e7302 | 719 | u32 mask, val; |
3bc28070 | 720 | |
2b0e7302 KM |
721 | mask = BP | SE; |
722 | val = enable ? mask : 0; | |
723 | ||
724 | fsi_is_port_a(fsi) ? | |
43fa95ca KM |
725 | fsi_core_mask_set(master, a_mclk, mask, val) : |
726 | fsi_core_mask_set(master, b_mclk, mask, val); | |
3bc28070 KM |
727 | } |
728 | ||
c8fe2574 | 729 | /* |
1f5e2a31 | 730 | * clock function |
c8fe2574 | 731 | */ |
ab6f6d85 KM |
732 | static int fsi_clk_init(struct device *dev, |
733 | struct fsi_priv *fsi, | |
734 | int xck, | |
735 | int ick, | |
736 | int div, | |
737 | int (*set_rate)(struct device *dev, | |
6cbdbffb | 738 | struct fsi_priv *fsi)) |
ab6f6d85 KM |
739 | { |
740 | struct fsi_clk *clock = &fsi->clock; | |
741 | int is_porta = fsi_is_port_a(fsi); | |
742 | ||
743 | clock->xck = NULL; | |
744 | clock->ick = NULL; | |
745 | clock->div = NULL; | |
746 | clock->rate = 0; | |
747 | clock->count = 0; | |
748 | clock->set_rate = set_rate; | |
749 | ||
750 | clock->own = devm_clk_get(dev, NULL); | |
751 | if (IS_ERR(clock->own)) | |
752 | return -EINVAL; | |
753 | ||
754 | /* external clock */ | |
755 | if (xck) { | |
756 | clock->xck = devm_clk_get(dev, is_porta ? "xcka" : "xckb"); | |
757 | if (IS_ERR(clock->xck)) { | |
758 | dev_err(dev, "can't get xck clock\n"); | |
759 | return -EINVAL; | |
760 | } | |
761 | if (clock->xck == clock->own) { | |
762 | dev_err(dev, "cpu doesn't support xck clock\n"); | |
763 | return -EINVAL; | |
764 | } | |
765 | } | |
766 | ||
767 | /* FSIACLK/FSIBCLK */ | |
768 | if (ick) { | |
769 | clock->ick = devm_clk_get(dev, is_porta ? "icka" : "ickb"); | |
770 | if (IS_ERR(clock->ick)) { | |
771 | dev_err(dev, "can't get ick clock\n"); | |
772 | return -EINVAL; | |
773 | } | |
774 | if (clock->ick == clock->own) { | |
775 | dev_err(dev, "cpu doesn't support ick clock\n"); | |
776 | return -EINVAL; | |
777 | } | |
778 | } | |
779 | ||
780 | /* FSI-DIV */ | |
781 | if (div) { | |
782 | clock->div = devm_clk_get(dev, is_porta ? "diva" : "divb"); | |
783 | if (IS_ERR(clock->div)) { | |
784 | dev_err(dev, "can't get div clock\n"); | |
785 | return -EINVAL; | |
786 | } | |
787 | if (clock->div == clock->own) { | |
788 | dev_err(dev, "cpu doens't support div clock\n"); | |
789 | return -EINVAL; | |
790 | } | |
791 | } | |
792 | ||
793 | return 0; | |
794 | } | |
795 | ||
796 | #define fsi_clk_invalid(fsi) fsi_clk_valid(fsi, 0) | |
797 | static void fsi_clk_valid(struct fsi_priv *fsi, unsigned long rate) | |
798 | { | |
799 | fsi->clock.rate = rate; | |
800 | } | |
801 | ||
802 | static int fsi_clk_is_valid(struct fsi_priv *fsi) | |
803 | { | |
804 | return fsi->clock.set_rate && | |
805 | fsi->clock.rate; | |
806 | } | |
807 | ||
808 | static int fsi_clk_enable(struct device *dev, | |
6cbdbffb | 809 | struct fsi_priv *fsi) |
ab6f6d85 KM |
810 | { |
811 | struct fsi_clk *clock = &fsi->clock; | |
812 | int ret = -EINVAL; | |
813 | ||
814 | if (!fsi_clk_is_valid(fsi)) | |
815 | return ret; | |
816 | ||
817 | if (0 == clock->count) { | |
6cbdbffb | 818 | ret = clock->set_rate(dev, fsi); |
ab6f6d85 KM |
819 | if (ret < 0) { |
820 | fsi_clk_invalid(fsi); | |
821 | return ret; | |
822 | } | |
823 | ||
180cf794 ME |
824 | clk_enable(clock->xck); |
825 | clk_enable(clock->ick); | |
826 | clk_enable(clock->div); | |
ab6f6d85 KM |
827 | |
828 | clock->count++; | |
829 | } | |
830 | ||
831 | return ret; | |
832 | } | |
833 | ||
834 | static int fsi_clk_disable(struct device *dev, | |
835 | struct fsi_priv *fsi) | |
836 | { | |
837 | struct fsi_clk *clock = &fsi->clock; | |
838 | ||
839 | if (!fsi_clk_is_valid(fsi)) | |
840 | return -EINVAL; | |
841 | ||
842 | if (1 == clock->count--) { | |
e98c89e0 ME |
843 | clk_disable(clock->xck); |
844 | clk_disable(clock->ick); | |
845 | clk_disable(clock->div); | |
ab6f6d85 KM |
846 | } |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
851 | static int fsi_clk_set_ackbpf(struct device *dev, | |
852 | struct fsi_priv *fsi, | |
853 | int ackmd, int bpfmd) | |
854 | { | |
855 | u32 data = 0; | |
856 | ||
857 | /* check ackmd/bpfmd relationship */ | |
858 | if (bpfmd > ackmd) { | |
859 | dev_err(dev, "unsupported rate (%d/%d)\n", ackmd, bpfmd); | |
860 | return -EINVAL; | |
861 | } | |
862 | ||
863 | /* ACKMD */ | |
864 | switch (ackmd) { | |
865 | case 512: | |
866 | data |= (0x0 << 12); | |
867 | break; | |
868 | case 256: | |
869 | data |= (0x1 << 12); | |
870 | break; | |
871 | case 128: | |
872 | data |= (0x2 << 12); | |
873 | break; | |
874 | case 64: | |
875 | data |= (0x3 << 12); | |
876 | break; | |
877 | case 32: | |
878 | data |= (0x4 << 12); | |
879 | break; | |
880 | default: | |
881 | dev_err(dev, "unsupported ackmd (%d)\n", ackmd); | |
882 | return -EINVAL; | |
883 | } | |
884 | ||
885 | /* BPFMD */ | |
886 | switch (bpfmd) { | |
887 | case 32: | |
888 | data |= (0x0 << 8); | |
889 | break; | |
890 | case 64: | |
891 | data |= (0x1 << 8); | |
892 | break; | |
893 | case 128: | |
894 | data |= (0x2 << 8); | |
895 | break; | |
896 | case 256: | |
897 | data |= (0x3 << 8); | |
898 | break; | |
899 | case 512: | |
900 | data |= (0x4 << 8); | |
901 | break; | |
902 | case 16: | |
903 | data |= (0x7 << 8); | |
904 | break; | |
905 | default: | |
906 | dev_err(dev, "unsupported bpfmd (%d)\n", bpfmd); | |
907 | return -EINVAL; | |
908 | } | |
909 | ||
910 | dev_dbg(dev, "ACKMD/BPFMD = %d/%d\n", ackmd, bpfmd); | |
911 | ||
912 | fsi_reg_mask_set(fsi, CKG1, (ACKMD_MASK | BPFMD_MASK) , data); | |
913 | udelay(10); | |
914 | ||
915 | return 0; | |
916 | } | |
917 | ||
918 | static int fsi_clk_set_rate_external(struct device *dev, | |
6cbdbffb | 919 | struct fsi_priv *fsi) |
ab6f6d85 KM |
920 | { |
921 | struct clk *xck = fsi->clock.xck; | |
922 | struct clk *ick = fsi->clock.ick; | |
6cbdbffb | 923 | unsigned long rate = fsi->clock.rate; |
ab6f6d85 KM |
924 | unsigned long xrate; |
925 | int ackmd, bpfmd; | |
926 | int ret = 0; | |
927 | ||
928 | /* check clock rate */ | |
929 | xrate = clk_get_rate(xck); | |
930 | if (xrate % rate) { | |
931 | dev_err(dev, "unsupported clock rate\n"); | |
932 | return -EINVAL; | |
933 | } | |
934 | ||
935 | clk_set_parent(ick, xck); | |
936 | clk_set_rate(ick, xrate); | |
937 | ||
938 | bpfmd = fsi->chan_num * 32; | |
939 | ackmd = xrate / rate; | |
940 | ||
941 | dev_dbg(dev, "external/rate = %ld/%ld\n", xrate, rate); | |
942 | ||
943 | ret = fsi_clk_set_ackbpf(dev, fsi, ackmd, bpfmd); | |
944 | if (ret < 0) | |
945 | dev_err(dev, "%s failed", __func__); | |
946 | ||
947 | return ret; | |
948 | } | |
949 | ||
950 | static int fsi_clk_set_rate_cpg(struct device *dev, | |
6cbdbffb | 951 | struct fsi_priv *fsi) |
ab6f6d85 KM |
952 | { |
953 | struct clk *ick = fsi->clock.ick; | |
954 | struct clk *div = fsi->clock.div; | |
6cbdbffb | 955 | unsigned long rate = fsi->clock.rate; |
ab6f6d85 KM |
956 | unsigned long target = 0; /* 12288000 or 11289600 */ |
957 | unsigned long actual, cout; | |
958 | unsigned long diff, min; | |
959 | unsigned long best_cout, best_act; | |
960 | int adj; | |
961 | int ackmd, bpfmd; | |
962 | int ret = -EINVAL; | |
963 | ||
964 | if (!(12288000 % rate)) | |
965 | target = 12288000; | |
966 | if (!(11289600 % rate)) | |
967 | target = 11289600; | |
968 | if (!target) { | |
969 | dev_err(dev, "unsupported rate\n"); | |
970 | return ret; | |
971 | } | |
972 | ||
973 | bpfmd = fsi->chan_num * 32; | |
974 | ackmd = target / rate; | |
975 | ret = fsi_clk_set_ackbpf(dev, fsi, ackmd, bpfmd); | |
976 | if (ret < 0) { | |
977 | dev_err(dev, "%s failed", __func__); | |
978 | return ret; | |
979 | } | |
980 | ||
981 | /* | |
982 | * The clock flow is | |
983 | * | |
984 | * [CPG] = cout => [FSI_DIV] = audio => [FSI] => [codec] | |
985 | * | |
986 | * But, it needs to find best match of CPG and FSI_DIV | |
987 | * combination, since it is difficult to generate correct | |
988 | * frequency of audio clock from ick clock only. | |
989 | * Because ick is created from its parent clock. | |
990 | * | |
991 | * target = rate x [512/256/128/64]fs | |
992 | * cout = round(target x adjustment) | |
993 | * actual = cout / adjustment (by FSI-DIV) ~= target | |
994 | * audio = actual | |
995 | */ | |
996 | min = ~0; | |
997 | best_cout = 0; | |
998 | best_act = 0; | |
999 | for (adj = 1; adj < 0xffff; adj++) { | |
1000 | ||
1001 | cout = target * adj; | |
1002 | if (cout > 100000000) /* max clock = 100MHz */ | |
1003 | break; | |
1004 | ||
1005 | /* cout/actual audio clock */ | |
1006 | cout = clk_round_rate(ick, cout); | |
1007 | actual = cout / adj; | |
1008 | ||
1009 | /* find best frequency */ | |
1010 | diff = abs(actual - target); | |
1011 | if (diff < min) { | |
1012 | min = diff; | |
1013 | best_cout = cout; | |
1014 | best_act = actual; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | ret = clk_set_rate(ick, best_cout); | |
1019 | if (ret < 0) { | |
1020 | dev_err(dev, "ick clock failed\n"); | |
1021 | return -EIO; | |
1022 | } | |
1023 | ||
1024 | ret = clk_set_rate(div, clk_round_rate(div, best_act)); | |
1025 | if (ret < 0) { | |
1026 | dev_err(dev, "div clock failed\n"); | |
1027 | return -EIO; | |
1028 | } | |
1029 | ||
1030 | dev_dbg(dev, "ick/div = %ld/%ld\n", | |
1031 | clk_get_rate(ick), clk_get_rate(div)); | |
1032 | ||
1033 | return ret; | |
1034 | } | |
1035 | ||
d403e249 KM |
1036 | static void fsi_pointer_update(struct fsi_stream *io, int size) |
1037 | { | |
1038 | io->buff_sample_pos += size; | |
1039 | ||
1040 | if (io->buff_sample_pos >= | |
1041 | io->period_samples * (io->period_pos + 1)) { | |
1042 | struct snd_pcm_substream *substream = io->substream; | |
1043 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1044 | ||
1045 | io->period_pos++; | |
1046 | ||
1047 | if (io->period_pos >= runtime->periods) { | |
1048 | io->buff_sample_pos = 0; | |
1049 | io->period_pos = 0; | |
1050 | } | |
1051 | ||
1052 | snd_pcm_period_elapsed(substream); | |
1053 | } | |
1054 | } | |
1055 | ||
1f5e2a31 | 1056 | /* |
1b0ca1a0 | 1057 | * pio data transfer handler |
1f5e2a31 | 1058 | */ |
1b0ca1a0 KM |
1059 | static void fsi_pio_push16(struct fsi_priv *fsi, u8 *_buf, int samples) |
1060 | { | |
1b0ca1a0 KM |
1061 | int i; |
1062 | ||
2522acd2 | 1063 | if (fsi_is_enable_stream(fsi)) { |
766812e6 KM |
1064 | /* |
1065 | * stream mode | |
1066 | * see | |
1067 | * fsi_pio_push_init() | |
1068 | */ | |
1069 | u32 *buf = (u32 *)_buf; | |
1070 | ||
1071 | for (i = 0; i < samples / 2; i++) | |
1072 | fsi_reg_write(fsi, DODT, buf[i]); | |
1073 | } else { | |
1074 | /* normal mode */ | |
1075 | u16 *buf = (u16 *)_buf; | |
1076 | ||
1077 | for (i = 0; i < samples; i++) | |
1078 | fsi_reg_write(fsi, DODT, ((u32)*(buf + i) << 8)); | |
1079 | } | |
1b0ca1a0 KM |
1080 | } |
1081 | ||
1082 | static void fsi_pio_pop16(struct fsi_priv *fsi, u8 *_buf, int samples) | |
1083 | { | |
1084 | u16 *buf = (u16 *)_buf; | |
1085 | int i; | |
1086 | ||
1087 | for (i = 0; i < samples; i++) | |
1088 | *(buf + i) = (u16)(fsi_reg_read(fsi, DIDT) >> 8); | |
1089 | } | |
1090 | ||
1091 | static void fsi_pio_push32(struct fsi_priv *fsi, u8 *_buf, int samples) | |
1092 | { | |
1093 | u32 *buf = (u32 *)_buf; | |
1094 | int i; | |
1095 | ||
1096 | for (i = 0; i < samples; i++) | |
1097 | fsi_reg_write(fsi, DODT, *(buf + i)); | |
1098 | } | |
1099 | ||
1100 | static void fsi_pio_pop32(struct fsi_priv *fsi, u8 *_buf, int samples) | |
1101 | { | |
1102 | u32 *buf = (u32 *)_buf; | |
1103 | int i; | |
1104 | ||
1105 | for (i = 0; i < samples; i++) | |
1106 | *(buf + i) = fsi_reg_read(fsi, DIDT); | |
1107 | } | |
1108 | ||
1109 | static u8 *fsi_pio_get_area(struct fsi_priv *fsi, struct fsi_stream *io) | |
1110 | { | |
1111 | struct snd_pcm_runtime *runtime = io->substream->runtime; | |
1112 | ||
1113 | return runtime->dma_area + | |
1114 | samples_to_bytes(runtime, io->buff_sample_pos); | |
1115 | } | |
1116 | ||
1117 | static int fsi_pio_transfer(struct fsi_priv *fsi, struct fsi_stream *io, | |
95b0cf05 KM |
1118 | void (*run16)(struct fsi_priv *fsi, u8 *buf, int samples), |
1119 | void (*run32)(struct fsi_priv *fsi, u8 *buf, int samples), | |
1120 | int samples) | |
a4d7d550 | 1121 | { |
95b0cf05 | 1122 | u8 *buf; |
a4d7d550 | 1123 | |
97df8187 | 1124 | if (!fsi_stream_is_working(fsi, io)) |
a4d7d550 KM |
1125 | return -EINVAL; |
1126 | ||
95b0cf05 KM |
1127 | buf = fsi_pio_get_area(fsi, io); |
1128 | ||
376cf38a KM |
1129 | switch (io->sample_width) { |
1130 | case 2: | |
95b0cf05 | 1131 | run16(fsi, buf, samples); |
376cf38a KM |
1132 | break; |
1133 | case 4: | |
95b0cf05 | 1134 | run32(fsi, buf, samples); |
376cf38a KM |
1135 | break; |
1136 | default: | |
1137 | return -EINVAL; | |
d8b33534 | 1138 | } |
a4d7d550 | 1139 | |
d403e249 | 1140 | fsi_pointer_update(io, samples); |
a4d7d550 | 1141 | |
47fc9a0a | 1142 | return 0; |
a4d7d550 KM |
1143 | } |
1144 | ||
5e97313a | 1145 | static int fsi_pio_pop(struct fsi_priv *fsi, struct fsi_stream *io) |
07102f3c | 1146 | { |
376cf38a KM |
1147 | int sample_residues; /* samples in FSI fifo */ |
1148 | int sample_space; /* ALSA free samples space */ | |
1149 | int samples; | |
376cf38a | 1150 | |
7b1b3331 | 1151 | sample_residues = fsi_get_current_fifo_samples(fsi, io); |
376cf38a KM |
1152 | sample_space = io->buff_sample_capa - io->buff_sample_pos; |
1153 | ||
1154 | samples = min(sample_residues, sample_space); | |
1155 | ||
1b0ca1a0 | 1156 | return fsi_pio_transfer(fsi, io, |
d78629e2 KM |
1157 | fsi_pio_pop16, |
1158 | fsi_pio_pop32, | |
376cf38a | 1159 | samples); |
d8b33534 | 1160 | } |
07102f3c | 1161 | |
5e97313a | 1162 | static int fsi_pio_push(struct fsi_priv *fsi, struct fsi_stream *io) |
d8b33534 | 1163 | { |
376cf38a KM |
1164 | int sample_residues; /* ALSA residue samples */ |
1165 | int sample_space; /* FSI fifo free samples space */ | |
1166 | int samples; | |
376cf38a KM |
1167 | |
1168 | sample_residues = io->buff_sample_capa - io->buff_sample_pos; | |
1169 | sample_space = io->fifo_sample_capa - | |
7b1b3331 | 1170 | fsi_get_current_fifo_samples(fsi, io); |
376cf38a KM |
1171 | |
1172 | samples = min(sample_residues, sample_space); | |
1173 | ||
1b0ca1a0 | 1174 | return fsi_pio_transfer(fsi, io, |
d78629e2 KM |
1175 | fsi_pio_push16, |
1176 | fsi_pio_push32, | |
376cf38a | 1177 | samples); |
07102f3c KM |
1178 | } |
1179 | ||
c375b2d7 | 1180 | static int fsi_pio_start_stop(struct fsi_priv *fsi, struct fsi_stream *io, |
180346ed KM |
1181 | int enable) |
1182 | { | |
1183 | struct fsi_master *master = fsi_get_master(fsi); | |
1184 | u32 clk = fsi_is_port_a(fsi) ? CRA : CRB; | |
1185 | ||
1186 | if (enable) | |
1187 | fsi_irq_enable(fsi, io); | |
1188 | else | |
1189 | fsi_irq_disable(fsi, io); | |
1190 | ||
1191 | if (fsi_is_clk_master(fsi)) | |
1192 | fsi_master_mask_set(master, CLK_RST, clk, (enable) ? clk : 0); | |
c375b2d7 KM |
1193 | |
1194 | return 0; | |
180346ed KM |
1195 | } |
1196 | ||
766812e6 KM |
1197 | static int fsi_pio_push_init(struct fsi_priv *fsi, struct fsi_stream *io) |
1198 | { | |
766812e6 KM |
1199 | /* |
1200 | * we can use 16bit stream mode | |
1201 | * when "playback" and "16bit data" | |
1202 | * and platform allows "stream mode" | |
1203 | * see | |
1204 | * fsi_pio_push16() | |
1205 | */ | |
2522acd2 | 1206 | if (fsi_is_enable_stream(fsi)) |
766812e6 KM |
1207 | io->bus_option = BUSOP_SET(24, PACKAGE_24BITBUS_BACK) | |
1208 | BUSOP_SET(16, PACKAGE_16BITBUS_STREAM); | |
1209 | else | |
1210 | io->bus_option = BUSOP_SET(24, PACKAGE_24BITBUS_BACK) | | |
1211 | BUSOP_SET(16, PACKAGE_24BITBUS_BACK); | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static int fsi_pio_pop_init(struct fsi_priv *fsi, struct fsi_stream *io) | |
1216 | { | |
1217 | /* | |
1218 | * always 24bit bus, package back when "capture" | |
1219 | */ | |
1220 | io->bus_option = BUSOP_SET(24, PACKAGE_24BITBUS_BACK) | | |
1221 | BUSOP_SET(16, PACKAGE_24BITBUS_BACK); | |
1222 | return 0; | |
1223 | } | |
1224 | ||
5e97313a | 1225 | static struct fsi_stream_handler fsi_pio_push_handler = { |
766812e6 | 1226 | .init = fsi_pio_push_init, |
5e97313a | 1227 | .transfer = fsi_pio_push, |
180346ed | 1228 | .start_stop = fsi_pio_start_stop, |
5e97313a KM |
1229 | }; |
1230 | ||
1231 | static struct fsi_stream_handler fsi_pio_pop_handler = { | |
766812e6 | 1232 | .init = fsi_pio_pop_init, |
5e97313a | 1233 | .transfer = fsi_pio_pop, |
180346ed | 1234 | .start_stop = fsi_pio_start_stop, |
5e97313a KM |
1235 | }; |
1236 | ||
a4d7d550 KM |
1237 | static irqreturn_t fsi_interrupt(int irq, void *data) |
1238 | { | |
71f6e064 | 1239 | struct fsi_master *master = data; |
10ea76cc | 1240 | u32 int_st = fsi_irq_get_status(master); |
a4d7d550 KM |
1241 | |
1242 | /* clear irq status */ | |
feb58cff KM |
1243 | fsi_master_mask_set(master, SOFT_RST, IR, 0); |
1244 | fsi_master_mask_set(master, SOFT_RST, IR, IR); | |
a4d7d550 | 1245 | |
cf6edd00 | 1246 | if (int_st & AB_IO(1, AO_SHIFT)) |
5e97313a | 1247 | fsi_stream_transfer(&master->fsia.playback); |
cf6edd00 | 1248 | if (int_st & AB_IO(1, BO_SHIFT)) |
5e97313a | 1249 | fsi_stream_transfer(&master->fsib.playback); |
cf6edd00 | 1250 | if (int_st & AB_IO(1, AI_SHIFT)) |
5e97313a | 1251 | fsi_stream_transfer(&master->fsia.capture); |
cf6edd00 | 1252 | if (int_st & AB_IO(1, BI_SHIFT)) |
5e97313a | 1253 | fsi_stream_transfer(&master->fsib.capture); |
1ec9bc35 KM |
1254 | |
1255 | fsi_count_fifo_err(&master->fsia); | |
1256 | fsi_count_fifo_err(&master->fsib); | |
a4d7d550 | 1257 | |
48d78e58 KM |
1258 | fsi_irq_clear_status(&master->fsia); |
1259 | fsi_irq_clear_status(&master->fsib); | |
a4d7d550 KM |
1260 | |
1261 | return IRQ_HANDLED; | |
1262 | } | |
1263 | ||
7da9ced6 KM |
1264 | /* |
1265 | * dma data transfer handler | |
1266 | */ | |
1267 | static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io) | |
1268 | { | |
766812e6 KM |
1269 | /* |
1270 | * 24bit data : 24bit bus / package in back | |
1271 | * 16bit data : 16bit bus / stream mode | |
1272 | */ | |
1273 | io->bus_option = BUSOP_SET(24, PACKAGE_24BITBUS_BACK) | | |
1274 | BUSOP_SET(16, PACKAGE_16BITBUS_STREAM); | |
1275 | ||
7da9ced6 KM |
1276 | return 0; |
1277 | } | |
1278 | ||
1279 | static void fsi_dma_complete(void *data) | |
1280 | { | |
1281 | struct fsi_stream *io = (struct fsi_stream *)data; | |
1282 | struct fsi_priv *fsi = fsi_stream_to_priv(io); | |
7da9ced6 | 1283 | |
d403e249 | 1284 | fsi_pointer_update(io, io->period_samples); |
7da9ced6 KM |
1285 | |
1286 | fsi_count_fifo_err(fsi); | |
7da9ced6 KM |
1287 | } |
1288 | ||
8457e0e9 | 1289 | static int fsi_dma_transfer(struct fsi_priv *fsi, struct fsi_stream *io) |
7da9ced6 | 1290 | { |
8457e0e9 KM |
1291 | struct snd_soc_dai *dai = fsi_get_dai(io->substream); |
1292 | struct snd_pcm_substream *substream = io->substream; | |
7da9ced6 | 1293 | struct dma_async_tx_descriptor *desc; |
7da9ced6 | 1294 | int is_play = fsi_stream_is_play(fsi, io); |
6c7d1dfc | 1295 | enum dma_transfer_direction dir; |
8457e0e9 KM |
1296 | int ret = -EIO; |
1297 | ||
6c7d1dfc LPC |
1298 | if (is_play) |
1299 | dir = DMA_MEM_TO_DEV; | |
1300 | else | |
1301 | dir = DMA_DEV_TO_MEM; | |
1302 | ||
8457e0e9 KM |
1303 | desc = dmaengine_prep_dma_cyclic(io->chan, |
1304 | substream->runtime->dma_addr, | |
1305 | snd_pcm_lib_buffer_bytes(substream), | |
1306 | snd_pcm_lib_period_bytes(substream), | |
1307 | dir, | |
1308 | DMA_PREP_INTERRUPT | DMA_CTRL_ACK); | |
1309 | if (!desc) { | |
1310 | dev_err(dai->dev, "dmaengine_prep_dma_cyclic() fail\n"); | |
1311 | goto fsi_dma_transfer_err; | |
1312 | } | |
53110a25 | 1313 | |
8457e0e9 KM |
1314 | desc->callback = fsi_dma_complete; |
1315 | desc->callback_param = io; | |
53110a25 | 1316 | |
8457e0e9 KM |
1317 | if (dmaengine_submit(desc) < 0) { |
1318 | dev_err(dai->dev, "tx_submit() fail\n"); | |
1319 | goto fsi_dma_transfer_err; | |
7da9ced6 KM |
1320 | } |
1321 | ||
8457e0e9 | 1322 | dma_async_issue_pending(io->chan); |
7da9ced6 KM |
1323 | |
1324 | /* | |
1325 | * FIXME | |
1326 | * | |
1327 | * In DMAEngine case, codec and FSI cannot be started simultaneously | |
57451e43 | 1328 | * since FSI is using the scheduler work queue. |
7da9ced6 KM |
1329 | * Therefore, in capture case, probably FSI FIFO will have got |
1330 | * overflow error in this point. | |
1331 | * in that case, DMA cannot start transfer until error was cleared. | |
1332 | */ | |
1333 | if (!is_play) { | |
1334 | if (ERR_OVER & fsi_reg_read(fsi, DIFF_ST)) { | |
1335 | fsi_reg_mask_set(fsi, DIFF_CTL, FIFO_CLR, FIFO_CLR); | |
1336 | fsi_reg_write(fsi, DIFF_ST, 0); | |
1337 | } | |
1338 | } | |
7da9ced6 | 1339 | |
8457e0e9 | 1340 | ret = 0; |
7da9ced6 | 1341 | |
8457e0e9 KM |
1342 | fsi_dma_transfer_err: |
1343 | return ret; | |
7da9ced6 KM |
1344 | } |
1345 | ||
c375b2d7 | 1346 | static int fsi_dma_push_start_stop(struct fsi_priv *fsi, struct fsi_stream *io, |
7da9ced6 KM |
1347 | int start) |
1348 | { | |
e42bb9bf KM |
1349 | struct fsi_master *master = fsi_get_master(fsi); |
1350 | u32 clk = fsi_is_port_a(fsi) ? CRA : CRB; | |
766812e6 | 1351 | u32 enable = start ? DMA_ON : 0; |
7da9ced6 | 1352 | |
766812e6 | 1353 | fsi_reg_mask_set(fsi, OUT_DMAC, DMA_ON, enable); |
e42bb9bf | 1354 | |
fbe42f66 KM |
1355 | dmaengine_terminate_all(io->chan); |
1356 | ||
e42bb9bf KM |
1357 | if (fsi_is_clk_master(fsi)) |
1358 | fsi_master_mask_set(master, CLK_RST, clk, (enable) ? clk : 0); | |
c375b2d7 KM |
1359 | |
1360 | return 0; | |
7da9ced6 KM |
1361 | } |
1362 | ||
b1226dc5 | 1363 | static int fsi_dma_probe(struct fsi_priv *fsi, struct fsi_stream *io, struct device *dev) |
7da9ced6 | 1364 | { |
a0732782 | 1365 | int is_play = fsi_stream_is_play(fsi, io); |
7da9ced6 | 1366 | |
e6e969f1 AB |
1367 | #ifdef CONFIG_SUPERH |
1368 | dma_cap_mask_t mask; | |
7da9ced6 KM |
1369 | dma_cap_zero(mask); |
1370 | dma_cap_set(DMA_SLAVE, mask); | |
1371 | ||
e6e969f1 AB |
1372 | io->chan = dma_request_channel(mask, shdma_chan_filter, |
1373 | (void *)io->dma_id); | |
1374 | #else | |
1375 | io->chan = dma_request_slave_channel(dev, is_play ? "tx" : "rx"); | |
1376 | #endif | |
a0732782 | 1377 | if (io->chan) { |
5b7cdc80 | 1378 | struct dma_slave_config cfg = {}; |
a0732782 KM |
1379 | int ret; |
1380 | ||
7c6cc8f2 KM |
1381 | if (is_play) { |
1382 | cfg.dst_addr = fsi->phys + REG_DODT; | |
1383 | cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; | |
1384 | cfg.direction = DMA_MEM_TO_DEV; | |
1385 | } else { | |
1386 | cfg.src_addr = fsi->phys + REG_DIDT; | |
1387 | cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; | |
1388 | cfg.direction = DMA_DEV_TO_MEM; | |
1389 | } | |
a0732782 KM |
1390 | |
1391 | ret = dmaengine_slave_config(io->chan, &cfg); | |
1392 | if (ret < 0) { | |
1393 | dma_release_channel(io->chan); | |
1394 | io->chan = NULL; | |
1395 | } | |
1396 | } | |
1397 | ||
b1226dc5 KM |
1398 | if (!io->chan) { |
1399 | ||
1400 | /* switch to PIO handler */ | |
a0732782 | 1401 | if (is_play) |
b1226dc5 KM |
1402 | fsi->playback.handler = &fsi_pio_push_handler; |
1403 | else | |
1404 | fsi->capture.handler = &fsi_pio_pop_handler; | |
1405 | ||
1406 | dev_info(dev, "switch handler (dma => pio)\n"); | |
1407 | ||
1408 | /* probe again */ | |
1409 | return fsi_stream_probe(fsi, dev); | |
1410 | } | |
7da9ced6 | 1411 | |
7da9ced6 KM |
1412 | return 0; |
1413 | } | |
1414 | ||
1415 | static int fsi_dma_remove(struct fsi_priv *fsi, struct fsi_stream *io) | |
1416 | { | |
7da9ced6 KM |
1417 | fsi_stream_stop(fsi, io); |
1418 | ||
1419 | if (io->chan) | |
1420 | dma_release_channel(io->chan); | |
1421 | ||
1422 | io->chan = NULL; | |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | static struct fsi_stream_handler fsi_dma_push_handler = { | |
1427 | .init = fsi_dma_init, | |
7da9ced6 KM |
1428 | .probe = fsi_dma_probe, |
1429 | .transfer = fsi_dma_transfer, | |
1430 | .remove = fsi_dma_remove, | |
1431 | .start_stop = fsi_dma_push_start_stop, | |
1432 | }; | |
1433 | ||
c8fe2574 KM |
1434 | /* |
1435 | * dai ops | |
1436 | */ | |
b49e8027 | 1437 | static void fsi_fifo_init(struct fsi_priv *fsi, |
938e2a8d | 1438 | struct fsi_stream *io, |
b49e8027 KM |
1439 | struct device *dev) |
1440 | { | |
1441 | struct fsi_master *master = fsi_get_master(fsi); | |
938e2a8d | 1442 | int is_play = fsi_stream_is_play(fsi, io); |
b49e8027 KM |
1443 | u32 shift, i; |
1444 | int frame_capa; | |
1445 | ||
1446 | /* get on-chip RAM capacity */ | |
1447 | shift = fsi_master_read(master, FIFO_SZ); | |
938e2a8d | 1448 | shift >>= fsi_get_port_shift(fsi, io); |
b49e8027 KM |
1449 | shift &= FIFO_SZ_MASK; |
1450 | frame_capa = 256 << shift; | |
1451 | dev_dbg(dev, "fifo = %d words\n", frame_capa); | |
1452 | ||
1453 | /* | |
1454 | * The maximum number of sample data varies depending | |
1455 | * on the number of channels selected for the format. | |
1456 | * | |
1457 | * FIFOs are used in 4-channel units in 3-channel mode | |
1458 | * and in 8-channel units in 5- to 7-channel mode | |
1459 | * meaning that more FIFOs than the required size of DPRAM | |
1460 | * are used. | |
1461 | * | |
1462 | * ex) if 256 words of DP-RAM is connected | |
1463 | * 1 channel: 256 (256 x 1 = 256) | |
1464 | * 2 channels: 128 (128 x 2 = 256) | |
1465 | * 3 channels: 64 ( 64 x 3 = 192) | |
1466 | * 4 channels: 64 ( 64 x 4 = 256) | |
1467 | * 5 channels: 32 ( 32 x 5 = 160) | |
1468 | * 6 channels: 32 ( 32 x 6 = 192) | |
1469 | * 7 channels: 32 ( 32 x 7 = 224) | |
1470 | * 8 channels: 32 ( 32 x 8 = 256) | |
1471 | */ | |
1472 | for (i = 1; i < fsi->chan_num; i <<= 1) | |
1473 | frame_capa >>= 1; | |
1474 | dev_dbg(dev, "%d channel %d store\n", | |
1475 | fsi->chan_num, frame_capa); | |
1476 | ||
1477 | io->fifo_sample_capa = fsi_frame2sample(fsi, frame_capa); | |
1478 | ||
1479 | /* | |
1480 | * set interrupt generation factor | |
1481 | * clear FIFO | |
1482 | */ | |
1483 | if (is_play) { | |
1484 | fsi_reg_write(fsi, DOFF_CTL, IRQ_HALF); | |
1485 | fsi_reg_mask_set(fsi, DOFF_CTL, FIFO_CLR, FIFO_CLR); | |
1486 | } else { | |
1487 | fsi_reg_write(fsi, DIFF_CTL, IRQ_HALF); | |
1488 | fsi_reg_mask_set(fsi, DIFF_CTL, FIFO_CLR, FIFO_CLR); | |
1489 | } | |
1490 | } | |
a4d7d550 | 1491 | |
23ca8533 | 1492 | static int fsi_hw_startup(struct fsi_priv *fsi, |
938e2a8d | 1493 | struct fsi_stream *io, |
23ca8533 | 1494 | struct device *dev) |
a4d7d550 | 1495 | { |
9478e0b6 | 1496 | u32 data = 0; |
a4d7d550 | 1497 | |
9478e0b6 KM |
1498 | /* clock setting */ |
1499 | if (fsi_is_clk_master(fsi)) | |
1500 | data = DIMD | DOMD; | |
1501 | ||
1502 | fsi_reg_mask_set(fsi, CKG1, (DIMD | DOMD), data); | |
a4d7d550 KM |
1503 | |
1504 | /* clock inversion (CKG2) */ | |
1505 | data = 0; | |
3449f5fa KM |
1506 | if (fsi->bit_clk_inv) |
1507 | data |= (1 << 0); | |
1508 | if (fsi->lr_clk_inv) | |
1509 | data |= (1 << 4); | |
1510 | if (fsi_is_clk_master(fsi)) | |
1511 | data <<= 8; | |
a4d7d550 KM |
1512 | fsi_reg_write(fsi, CKG2, data); |
1513 | ||
9478e0b6 KM |
1514 | /* spdif ? */ |
1515 | if (fsi_is_spdif(fsi)) { | |
1516 | fsi_spdif_clk_ctrl(fsi, 1); | |
1517 | fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD); | |
1518 | } | |
1519 | ||
65ff03f4 | 1520 | /* |
766812e6 | 1521 | * get bus settings |
65ff03f4 | 1522 | */ |
766812e6 KM |
1523 | data = 0; |
1524 | switch (io->sample_width) { | |
1525 | case 2: | |
1526 | data = BUSOP_GET(16, io->bus_option); | |
1527 | break; | |
1528 | case 4: | |
1529 | data = BUSOP_GET(24, io->bus_option); | |
1530 | break; | |
65ff03f4 | 1531 | } |
766812e6 | 1532 | fsi_format_bus_setup(fsi, io, data, dev); |
65ff03f4 | 1533 | |
10ea76cc | 1534 | /* irq clear */ |
938e2a8d | 1535 | fsi_irq_disable(fsi, io); |
10ea76cc KM |
1536 | fsi_irq_clear_status(fsi); |
1537 | ||
1538 | /* fifo init */ | |
938e2a8d | 1539 | fsi_fifo_init(fsi, io, dev); |
a4d7d550 | 1540 | |
ddeb2d70 KM |
1541 | /* start master clock */ |
1542 | if (fsi_is_clk_master(fsi)) | |
6cbdbffb | 1543 | return fsi_clk_enable(dev, fsi); |
ddeb2d70 | 1544 | |
a68a3b4e | 1545 | return 0; |
a4d7d550 KM |
1546 | } |
1547 | ||
80b4addc | 1548 | static int fsi_hw_shutdown(struct fsi_priv *fsi, |
23ca8533 KM |
1549 | struct device *dev) |
1550 | { | |
ddeb2d70 | 1551 | /* stop master clock */ |
23ca8533 | 1552 | if (fsi_is_clk_master(fsi)) |
6cbdbffb | 1553 | return fsi_clk_disable(dev, fsi); |
80b4addc KM |
1554 | |
1555 | return 0; | |
23ca8533 KM |
1556 | } |
1557 | ||
1558 | static int fsi_dai_startup(struct snd_pcm_substream *substream, | |
1559 | struct snd_soc_dai *dai) | |
1560 | { | |
1561 | struct fsi_priv *fsi = fsi_get_priv(substream); | |
23ca8533 | 1562 | |
ab6f6d85 | 1563 | fsi_clk_invalid(fsi); |
f33238e9 KM |
1564 | |
1565 | return 0; | |
23ca8533 KM |
1566 | } |
1567 | ||
a4d7d550 KM |
1568 | static void fsi_dai_shutdown(struct snd_pcm_substream *substream, |
1569 | struct snd_soc_dai *dai) | |
1570 | { | |
71f6e064 | 1571 | struct fsi_priv *fsi = fsi_get_priv(substream); |
a4d7d550 | 1572 | |
ab6f6d85 | 1573 | fsi_clk_invalid(fsi); |
a4d7d550 KM |
1574 | } |
1575 | ||
1576 | static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd, | |
1577 | struct snd_soc_dai *dai) | |
1578 | { | |
71f6e064 | 1579 | struct fsi_priv *fsi = fsi_get_priv(substream); |
938e2a8d | 1580 | struct fsi_stream *io = fsi_stream_get(fsi, substream); |
a4d7d550 KM |
1581 | int ret = 0; |
1582 | ||
a4d7d550 KM |
1583 | switch (cmd) { |
1584 | case SNDRV_PCM_TRIGGER_START: | |
938e2a8d | 1585 | fsi_stream_init(fsi, io, substream); |
80b4addc KM |
1586 | if (!ret) |
1587 | ret = fsi_hw_startup(fsi, io, dai->dev); | |
1588 | if (!ret) | |
8457e0e9 | 1589 | ret = fsi_stream_start(fsi, io); |
80b4addc | 1590 | if (!ret) |
8457e0e9 | 1591 | ret = fsi_stream_transfer(io); |
a4d7d550 KM |
1592 | break; |
1593 | case SNDRV_PCM_TRIGGER_STOP: | |
80b4addc KM |
1594 | if (!ret) |
1595 | ret = fsi_hw_shutdown(fsi, dai->dev); | |
180346ed | 1596 | fsi_stream_stop(fsi, io); |
938e2a8d | 1597 | fsi_stream_quit(fsi, io); |
a4d7d550 KM |
1598 | break; |
1599 | } | |
1600 | ||
1601 | return ret; | |
1602 | } | |
1603 | ||
f17c13ca KM |
1604 | static int fsi_set_fmt_dai(struct fsi_priv *fsi, unsigned int fmt) |
1605 | { | |
f17c13ca KM |
1606 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
1607 | case SND_SOC_DAIFMT_I2S: | |
9c59dd34 | 1608 | fsi->fmt = CR_I2S; |
f17c13ca KM |
1609 | fsi->chan_num = 2; |
1610 | break; | |
1611 | case SND_SOC_DAIFMT_LEFT_J: | |
9c59dd34 | 1612 | fsi->fmt = CR_PCM; |
f17c13ca KM |
1613 | fsi->chan_num = 2; |
1614 | break; | |
1615 | default: | |
1616 | return -EINVAL; | |
1617 | } | |
1618 | ||
f17c13ca KM |
1619 | return 0; |
1620 | } | |
1621 | ||
1622 | static int fsi_set_fmt_spdif(struct fsi_priv *fsi) | |
1623 | { | |
1624 | struct fsi_master *master = fsi_get_master(fsi); | |
f17c13ca | 1625 | |
284c6f65 | 1626 | if (fsi_version(master) < 2) |
f17c13ca KM |
1627 | return -EINVAL; |
1628 | ||
766812e6 | 1629 | fsi->fmt = CR_DTMD_SPDIF_PCM | CR_PCM; |
f17c13ca | 1630 | fsi->chan_num = 2; |
f17c13ca | 1631 | |
f17c13ca KM |
1632 | return 0; |
1633 | } | |
1634 | ||
4d805f7b KM |
1635 | static int fsi_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
1636 | { | |
1637 | struct fsi_priv *fsi = fsi_get_priv_frm_dai(dai); | |
4d805f7b KM |
1638 | int ret; |
1639 | ||
4d805f7b KM |
1640 | /* set master/slave audio interface */ |
1641 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
1642 | case SND_SOC_DAIFMT_CBM_CFM: | |
4d805f7b KM |
1643 | break; |
1644 | case SND_SOC_DAIFMT_CBS_CFS: | |
c7a507ee | 1645 | fsi->clk_master = 1; /* codec is slave, cpu is master */ |
4d805f7b KM |
1646 | break; |
1647 | default: | |
9478e0b6 | 1648 | return -EINVAL; |
4d805f7b | 1649 | } |
6a9ebad8 | 1650 | |
3449f5fa KM |
1651 | /* set clock inversion */ |
1652 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
1653 | case SND_SOC_DAIFMT_NB_IF: | |
1654 | fsi->bit_clk_inv = 0; | |
1655 | fsi->lr_clk_inv = 1; | |
f17c13ca | 1656 | break; |
3449f5fa KM |
1657 | case SND_SOC_DAIFMT_IB_NF: |
1658 | fsi->bit_clk_inv = 1; | |
1659 | fsi->lr_clk_inv = 0; | |
f17c13ca | 1660 | break; |
3449f5fa KM |
1661 | case SND_SOC_DAIFMT_IB_IF: |
1662 | fsi->bit_clk_inv = 1; | |
1663 | fsi->lr_clk_inv = 1; | |
1664 | break; | |
1665 | case SND_SOC_DAIFMT_NB_NF: | |
f17c13ca | 1666 | default: |
3449f5fa KM |
1667 | fsi->bit_clk_inv = 0; |
1668 | fsi->lr_clk_inv = 0; | |
1669 | break; | |
1670 | } | |
1671 | ||
ab6f6d85 | 1672 | if (fsi_is_clk_master(fsi)) { |
ab6340c4 | 1673 | if (fsi->clk_cpg) |
ab6f6d85 KM |
1674 | fsi_clk_init(dai->dev, fsi, 0, 1, 1, |
1675 | fsi_clk_set_rate_cpg); | |
ab6340c4 KM |
1676 | else |
1677 | fsi_clk_init(dai->dev, fsi, 1, 1, 0, | |
1678 | fsi_clk_set_rate_external); | |
f17c13ca | 1679 | } |
4d805f7b | 1680 | |
f17c13ca | 1681 | /* set format */ |
c2052def | 1682 | if (fsi_is_spdif(fsi)) |
f17c13ca | 1683 | ret = fsi_set_fmt_spdif(fsi); |
c2052def KM |
1684 | else |
1685 | ret = fsi_set_fmt_dai(fsi, fmt & SND_SOC_DAIFMT_FORMAT_MASK); | |
4d805f7b | 1686 | |
4d805f7b KM |
1687 | return ret; |
1688 | } | |
1689 | ||
ccad7b44 KM |
1690 | static int fsi_dai_hw_params(struct snd_pcm_substream *substream, |
1691 | struct snd_pcm_hw_params *params, | |
1692 | struct snd_soc_dai *dai) | |
1693 | { | |
1694 | struct fsi_priv *fsi = fsi_get_priv(substream); | |
ccad7b44 | 1695 | |
6cbdbffb KM |
1696 | if (fsi_is_clk_master(fsi)) |
1697 | fsi_clk_valid(fsi, params_rate(params)); | |
ccad7b44 | 1698 | |
ddeb2d70 | 1699 | return 0; |
ccad7b44 KM |
1700 | } |
1701 | ||
85e7652d | 1702 | static const struct snd_soc_dai_ops fsi_dai_ops = { |
a4d7d550 KM |
1703 | .startup = fsi_dai_startup, |
1704 | .shutdown = fsi_dai_shutdown, | |
1705 | .trigger = fsi_dai_trigger, | |
4d805f7b | 1706 | .set_fmt = fsi_dai_set_fmt, |
ccad7b44 | 1707 | .hw_params = fsi_dai_hw_params, |
a4d7d550 KM |
1708 | }; |
1709 | ||
c8fe2574 KM |
1710 | /* |
1711 | * pcm ops | |
1712 | */ | |
a4d7d550 | 1713 | |
a4d7d550 KM |
1714 | static struct snd_pcm_hardware fsi_pcm_hardware = { |
1715 | .info = SNDRV_PCM_INFO_INTERLEAVED | | |
1716 | SNDRV_PCM_INFO_MMAP | | |
c1b9b9b1 | 1717 | SNDRV_PCM_INFO_MMAP_VALID, |
a4d7d550 KM |
1718 | .buffer_bytes_max = 64 * 1024, |
1719 | .period_bytes_min = 32, | |
1720 | .period_bytes_max = 8192, | |
1721 | .periods_min = 1, | |
1722 | .periods_max = 32, | |
1723 | .fifo_size = 256, | |
1724 | }; | |
1725 | ||
1726 | static int fsi_pcm_open(struct snd_pcm_substream *substream) | |
1727 | { | |
1728 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1729 | int ret = 0; | |
1730 | ||
1731 | snd_soc_set_runtime_hwparams(substream, &fsi_pcm_hardware); | |
1732 | ||
1733 | ret = snd_pcm_hw_constraint_integer(runtime, | |
1734 | SNDRV_PCM_HW_PARAM_PERIODS); | |
1735 | ||
1736 | return ret; | |
1737 | } | |
1738 | ||
1739 | static int fsi_hw_params(struct snd_pcm_substream *substream, | |
1740 | struct snd_pcm_hw_params *hw_params) | |
1741 | { | |
1742 | return snd_pcm_lib_malloc_pages(substream, | |
1743 | params_buffer_bytes(hw_params)); | |
1744 | } | |
1745 | ||
1746 | static int fsi_hw_free(struct snd_pcm_substream *substream) | |
1747 | { | |
1748 | return snd_pcm_lib_free_pages(substream); | |
1749 | } | |
1750 | ||
1751 | static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream) | |
1752 | { | |
71f6e064 | 1753 | struct fsi_priv *fsi = fsi_get_priv(substream); |
938e2a8d | 1754 | struct fsi_stream *io = fsi_stream_get(fsi, substream); |
a4d7d550 | 1755 | |
1987877d | 1756 | return fsi_sample2frame(fsi, io->buff_sample_pos); |
a4d7d550 KM |
1757 | } |
1758 | ||
1759 | static struct snd_pcm_ops fsi_pcm_ops = { | |
1760 | .open = fsi_pcm_open, | |
1761 | .ioctl = snd_pcm_lib_ioctl, | |
1762 | .hw_params = fsi_hw_params, | |
1763 | .hw_free = fsi_hw_free, | |
1764 | .pointer = fsi_pointer, | |
1765 | }; | |
1766 | ||
c8fe2574 KM |
1767 | /* |
1768 | * snd_soc_platform | |
1769 | */ | |
a4d7d550 | 1770 | |
a4d7d550 KM |
1771 | #define PREALLOC_BUFFER (32 * 1024) |
1772 | #define PREALLOC_BUFFER_MAX (32 * 1024) | |
1773 | ||
552d1ef6 | 1774 | static int fsi_pcm_new(struct snd_soc_pcm_runtime *rtd) |
a4d7d550 | 1775 | { |
a4d7d550 | 1776 | return snd_pcm_lib_preallocate_pages_for_all( |
ffb83e8c KM |
1777 | rtd->pcm, |
1778 | SNDRV_DMA_TYPE_DEV, | |
1779 | rtd->card->snd_card->dev, | |
a4d7d550 KM |
1780 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); |
1781 | } | |
1782 | ||
c8fe2574 KM |
1783 | /* |
1784 | * alsa struct | |
1785 | */ | |
a4d7d550 | 1786 | |
f0fba2ad | 1787 | static struct snd_soc_dai_driver fsi_soc_dai[] = { |
a4d7d550 | 1788 | { |
f0fba2ad | 1789 | .name = "fsia-dai", |
a4d7d550 KM |
1790 | .playback = { |
1791 | .rates = FSI_RATES, | |
1792 | .formats = FSI_FMTS, | |
2a8c8a56 KM |
1793 | .channels_min = 2, |
1794 | .channels_max = 2, | |
a4d7d550 | 1795 | }, |
07102f3c KM |
1796 | .capture = { |
1797 | .rates = FSI_RATES, | |
1798 | .formats = FSI_FMTS, | |
2a8c8a56 KM |
1799 | .channels_min = 2, |
1800 | .channels_max = 2, | |
07102f3c | 1801 | }, |
a4d7d550 KM |
1802 | .ops = &fsi_dai_ops, |
1803 | }, | |
1804 | { | |
f0fba2ad | 1805 | .name = "fsib-dai", |
a4d7d550 KM |
1806 | .playback = { |
1807 | .rates = FSI_RATES, | |
1808 | .formats = FSI_FMTS, | |
2a8c8a56 KM |
1809 | .channels_min = 2, |
1810 | .channels_max = 2, | |
a4d7d550 | 1811 | }, |
07102f3c KM |
1812 | .capture = { |
1813 | .rates = FSI_RATES, | |
1814 | .formats = FSI_FMTS, | |
2a8c8a56 KM |
1815 | .channels_min = 2, |
1816 | .channels_max = 2, | |
07102f3c | 1817 | }, |
a4d7d550 KM |
1818 | .ops = &fsi_dai_ops, |
1819 | }, | |
1820 | }; | |
a4d7d550 | 1821 | |
f0fba2ad LG |
1822 | static struct snd_soc_platform_driver fsi_soc_platform = { |
1823 | .ops = &fsi_pcm_ops, | |
a4d7d550 | 1824 | .pcm_new = fsi_pcm_new, |
a4d7d550 | 1825 | }; |
a4d7d550 | 1826 | |
da4f2f9e KM |
1827 | static const struct snd_soc_component_driver fsi_soc_component = { |
1828 | .name = "fsi", | |
1829 | }; | |
1830 | ||
c8fe2574 KM |
1831 | /* |
1832 | * platform function | |
1833 | */ | |
9e7b6d60 KM |
1834 | static void fsi_of_parse(char *name, |
1835 | struct device_node *np, | |
1836 | struct sh_fsi_port_info *info, | |
1837 | struct device *dev) | |
1838 | { | |
1839 | int i; | |
1840 | char prop[128]; | |
1841 | unsigned long flags = 0; | |
1842 | struct { | |
1843 | char *name; | |
1844 | unsigned int val; | |
1845 | } of_parse_property[] = { | |
1846 | { "spdif-connection", SH_FSI_FMT_SPDIF }, | |
1847 | { "stream-mode-support", SH_FSI_ENABLE_STREAM_MODE }, | |
1848 | { "use-internal-clock", SH_FSI_CLK_CPG }, | |
1849 | }; | |
1850 | ||
1851 | for (i = 0; i < ARRAY_SIZE(of_parse_property); i++) { | |
1852 | sprintf(prop, "%s,%s", name, of_parse_property[i].name); | |
1853 | if (of_get_property(np, prop, NULL)) | |
1854 | flags |= of_parse_property[i].val; | |
1855 | } | |
1856 | info->flags = flags; | |
1857 | ||
1858 | dev_dbg(dev, "%s flags : %lx\n", name, info->flags); | |
1859 | } | |
1860 | ||
c2052def KM |
1861 | static void fsi_port_info_init(struct fsi_priv *fsi, |
1862 | struct sh_fsi_port_info *info) | |
1863 | { | |
1864 | if (info->flags & SH_FSI_FMT_SPDIF) | |
1865 | fsi->spdif = 1; | |
ab6340c4 KM |
1866 | |
1867 | if (info->flags & SH_FSI_CLK_CPG) | |
1868 | fsi->clk_cpg = 1; | |
2522acd2 KM |
1869 | |
1870 | if (info->flags & SH_FSI_ENABLE_STREAM_MODE) | |
1871 | fsi->enable_stream = 1; | |
c2052def KM |
1872 | } |
1873 | ||
943fdadc KM |
1874 | static void fsi_handler_init(struct fsi_priv *fsi, |
1875 | struct sh_fsi_port_info *info) | |
5e97313a KM |
1876 | { |
1877 | fsi->playback.handler = &fsi_pio_push_handler; /* default PIO */ | |
1878 | fsi->playback.priv = fsi; | |
1879 | fsi->capture.handler = &fsi_pio_pop_handler; /* default PIO */ | |
1880 | fsi->capture.priv = fsi; | |
7da9ced6 | 1881 | |
943fdadc | 1882 | if (info->tx_id) { |
a0732782 | 1883 | fsi->playback.dma_id = info->tx_id; |
b8373147 | 1884 | fsi->playback.handler = &fsi_dma_push_handler; |
7da9ced6 | 1885 | } |
5e97313a | 1886 | } |
a4d7d550 | 1887 | |
9a42ab04 | 1888 | static const struct fsi_core fsi1_core = { |
3b6281cf UKK |
1889 | .ver = 1, |
1890 | ||
1891 | /* Interrupt */ | |
1892 | .int_st = INT_ST, | |
1893 | .iemsk = IEMSK, | |
1894 | .imsk = IMSK, | |
1895 | }; | |
1896 | ||
9a42ab04 | 1897 | static const struct fsi_core fsi2_core = { |
3b6281cf UKK |
1898 | .ver = 2, |
1899 | ||
1900 | /* Interrupt */ | |
1901 | .int_st = CPU_INT_ST, | |
1902 | .iemsk = CPU_IEMSK, | |
1903 | .imsk = CPU_IMSK, | |
1904 | .a_mclk = A_MST_CTLR, | |
1905 | .b_mclk = B_MST_CTLR, | |
1906 | }; | |
1907 | ||
1908 | static const struct of_device_id fsi_of_match[] = { | |
1909 | { .compatible = "renesas,sh_fsi", .data = &fsi1_core}, | |
1910 | { .compatible = "renesas,sh_fsi2", .data = &fsi2_core}, | |
1911 | {}, | |
1912 | }; | |
1913 | MODULE_DEVICE_TABLE(of, fsi_of_match); | |
1914 | ||
9a42ab04 | 1915 | static const struct platform_device_id fsi_id_table[] = { |
3b6281cf | 1916 | { "sh_fsi", (kernel_ulong_t)&fsi1_core }, |
3b6281cf UKK |
1917 | {}, |
1918 | }; | |
1919 | MODULE_DEVICE_TABLE(platform, fsi_id_table); | |
1920 | ||
a4d7d550 KM |
1921 | static int fsi_probe(struct platform_device *pdev) |
1922 | { | |
71f6e064 | 1923 | struct fsi_master *master; |
9e7b6d60 | 1924 | struct device_node *np = pdev->dev.of_node; |
fd974e52 | 1925 | struct sh_fsi_platform_info info; |
9e7b6d60 | 1926 | const struct fsi_core *core; |
40f9118b | 1927 | struct fsi_priv *fsi; |
a4d7d550 | 1928 | struct resource *res; |
a4d7d550 KM |
1929 | unsigned int irq; |
1930 | int ret; | |
1931 | ||
fd974e52 | 1932 | memset(&info, 0, sizeof(info)); |
943fdadc | 1933 | |
9e7b6d60 KM |
1934 | core = NULL; |
1935 | if (np) { | |
1936 | const struct of_device_id *of_id; | |
1937 | ||
1938 | of_id = of_match_device(fsi_of_match, &pdev->dev); | |
1939 | if (of_id) { | |
1940 | core = of_id->data; | |
1941 | fsi_of_parse("fsia", np, &info.port_a, &pdev->dev); | |
1942 | fsi_of_parse("fsib", np, &info.port_b, &pdev->dev); | |
1943 | } | |
1944 | } else { | |
1945 | const struct platform_device_id *id_entry = pdev->id_entry; | |
1946 | if (id_entry) | |
1947 | core = (struct fsi_core *)id_entry->driver_data; | |
1948 | ||
1949 | if (pdev->dev.platform_data) | |
1950 | memcpy(&info, pdev->dev.platform_data, sizeof(info)); | |
1951 | } | |
1952 | ||
1953 | if (!core) { | |
cc780d38 KM |
1954 | dev_err(&pdev->dev, "unknown fsi device\n"); |
1955 | return -ENODEV; | |
1956 | } | |
1957 | ||
a4d7d550 KM |
1958 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1959 | irq = platform_get_irq(pdev, 0); | |
b6aa1793 | 1960 | if (!res || (int)irq <= 0) { |
a4d7d550 | 1961 | dev_err(&pdev->dev, "Not enough FSI platform resources.\n"); |
6ac4262f | 1962 | return -ENODEV; |
a4d7d550 KM |
1963 | } |
1964 | ||
6ac4262f | 1965 | master = devm_kzalloc(&pdev->dev, sizeof(*master), GFP_KERNEL); |
a4d7d550 KM |
1966 | if (!master) { |
1967 | dev_err(&pdev->dev, "Could not allocate master\n"); | |
6ac4262f | 1968 | return -ENOMEM; |
a4d7d550 KM |
1969 | } |
1970 | ||
6ac4262f KM |
1971 | master->base = devm_ioremap_nocache(&pdev->dev, |
1972 | res->start, resource_size(res)); | |
a4d7d550 | 1973 | if (!master->base) { |
a4d7d550 | 1974 | dev_err(&pdev->dev, "Unable to ioremap FSI registers.\n"); |
6ac4262f | 1975 | return -ENXIO; |
a4d7d550 KM |
1976 | } |
1977 | ||
3bc28070 | 1978 | /* master setting */ |
9e7b6d60 | 1979 | master->core = core; |
3bc28070 KM |
1980 | spin_lock_init(&master->lock); |
1981 | ||
1982 | /* FSI A setting */ | |
40f9118b KM |
1983 | fsi = &master->fsia; |
1984 | fsi->base = master->base; | |
7c6cc8f2 | 1985 | fsi->phys = res->start; |
40f9118b | 1986 | fsi->master = master; |
fd974e52 KM |
1987 | fsi_port_info_init(fsi, &info.port_a); |
1988 | fsi_handler_init(fsi, &info.port_a); | |
40f9118b | 1989 | ret = fsi_stream_probe(fsi, &pdev->dev); |
5e97313a KM |
1990 | if (ret < 0) { |
1991 | dev_err(&pdev->dev, "FSIA stream probe failed\n"); | |
6ac4262f | 1992 | return ret; |
5e97313a | 1993 | } |
3bc28070 KM |
1994 | |
1995 | /* FSI B setting */ | |
40f9118b KM |
1996 | fsi = &master->fsib; |
1997 | fsi->base = master->base + 0x40; | |
7c6cc8f2 | 1998 | fsi->phys = res->start + 0x40; |
40f9118b | 1999 | fsi->master = master; |
fd974e52 KM |
2000 | fsi_port_info_init(fsi, &info.port_b); |
2001 | fsi_handler_init(fsi, &info.port_b); | |
40f9118b | 2002 | ret = fsi_stream_probe(fsi, &pdev->dev); |
5e97313a KM |
2003 | if (ret < 0) { |
2004 | dev_err(&pdev->dev, "FSIB stream probe failed\n"); | |
2005 | goto exit_fsia; | |
2006 | } | |
a4d7d550 | 2007 | |
785d1c45 | 2008 | pm_runtime_enable(&pdev->dev); |
f0fba2ad | 2009 | dev_set_drvdata(&pdev->dev, master); |
a4d7d550 | 2010 | |
1ddd8286 | 2011 | ret = devm_request_irq(&pdev->dev, irq, &fsi_interrupt, 0, |
9e7b6d60 | 2012 | dev_name(&pdev->dev), master); |
a4d7d550 KM |
2013 | if (ret) { |
2014 | dev_err(&pdev->dev, "irq request err\n"); | |
5e97313a | 2015 | goto exit_fsib; |
a4d7d550 KM |
2016 | } |
2017 | ||
f0fba2ad | 2018 | ret = snd_soc_register_platform(&pdev->dev, &fsi_soc_platform); |
a4d7d550 KM |
2019 | if (ret < 0) { |
2020 | dev_err(&pdev->dev, "cannot snd soc register\n"); | |
1ddd8286 | 2021 | goto exit_fsib; |
a4d7d550 KM |
2022 | } |
2023 | ||
da4f2f9e KM |
2024 | ret = snd_soc_register_component(&pdev->dev, &fsi_soc_component, |
2025 | fsi_soc_dai, ARRAY_SIZE(fsi_soc_dai)); | |
0b5ec87d | 2026 | if (ret < 0) { |
da4f2f9e | 2027 | dev_err(&pdev->dev, "cannot snd component register\n"); |
0b5ec87d KM |
2028 | goto exit_snd_soc; |
2029 | } | |
a4d7d550 | 2030 | |
0b5ec87d KM |
2031 | return ret; |
2032 | ||
2033 | exit_snd_soc: | |
2034 | snd_soc_unregister_platform(&pdev->dev); | |
5e97313a | 2035 | exit_fsib: |
c35e005f | 2036 | pm_runtime_disable(&pdev->dev); |
5e97313a KM |
2037 | fsi_stream_remove(&master->fsib); |
2038 | exit_fsia: | |
2039 | fsi_stream_remove(&master->fsia); | |
6ac4262f | 2040 | |
a4d7d550 KM |
2041 | return ret; |
2042 | } | |
2043 | ||
2044 | static int fsi_remove(struct platform_device *pdev) | |
2045 | { | |
71f6e064 KM |
2046 | struct fsi_master *master; |
2047 | ||
f0fba2ad | 2048 | master = dev_get_drvdata(&pdev->dev); |
71f6e064 | 2049 | |
785d1c45 | 2050 | pm_runtime_disable(&pdev->dev); |
a4d7d550 | 2051 | |
da4f2f9e | 2052 | snd_soc_unregister_component(&pdev->dev); |
d985f27e | 2053 | snd_soc_unregister_platform(&pdev->dev); |
a4d7d550 | 2054 | |
5e97313a KM |
2055 | fsi_stream_remove(&master->fsia); |
2056 | fsi_stream_remove(&master->fsib); | |
2057 | ||
a4d7d550 KM |
2058 | return 0; |
2059 | } | |
2060 | ||
106c79ec | 2061 | static void __fsi_suspend(struct fsi_priv *fsi, |
938e2a8d | 2062 | struct fsi_stream *io, |
4f56cde1 | 2063 | struct device *dev) |
106c79ec | 2064 | { |
938e2a8d | 2065 | if (!fsi_stream_is_working(fsi, io)) |
cda828ca | 2066 | return; |
106c79ec | 2067 | |
180346ed | 2068 | fsi_stream_stop(fsi, io); |
41bba151 | 2069 | fsi_hw_shutdown(fsi, dev); |
106c79ec KM |
2070 | } |
2071 | ||
2072 | static void __fsi_resume(struct fsi_priv *fsi, | |
938e2a8d | 2073 | struct fsi_stream *io, |
4f56cde1 | 2074 | struct device *dev) |
106c79ec | 2075 | { |
938e2a8d | 2076 | if (!fsi_stream_is_working(fsi, io)) |
cda828ca | 2077 | return; |
106c79ec | 2078 | |
938e2a8d | 2079 | fsi_hw_startup(fsi, io, dev); |
180346ed | 2080 | fsi_stream_start(fsi, io); |
106c79ec KM |
2081 | } |
2082 | ||
2083 | static int fsi_suspend(struct device *dev) | |
2084 | { | |
2085 | struct fsi_master *master = dev_get_drvdata(dev); | |
cda828ca KM |
2086 | struct fsi_priv *fsia = &master->fsia; |
2087 | struct fsi_priv *fsib = &master->fsib; | |
106c79ec | 2088 | |
938e2a8d KM |
2089 | __fsi_suspend(fsia, &fsia->playback, dev); |
2090 | __fsi_suspend(fsia, &fsia->capture, dev); | |
106c79ec | 2091 | |
938e2a8d KM |
2092 | __fsi_suspend(fsib, &fsib->playback, dev); |
2093 | __fsi_suspend(fsib, &fsib->capture, dev); | |
106c79ec KM |
2094 | |
2095 | return 0; | |
2096 | } | |
2097 | ||
2098 | static int fsi_resume(struct device *dev) | |
2099 | { | |
2100 | struct fsi_master *master = dev_get_drvdata(dev); | |
cda828ca KM |
2101 | struct fsi_priv *fsia = &master->fsia; |
2102 | struct fsi_priv *fsib = &master->fsib; | |
106c79ec | 2103 | |
938e2a8d KM |
2104 | __fsi_resume(fsia, &fsia->playback, dev); |
2105 | __fsi_resume(fsia, &fsia->capture, dev); | |
106c79ec | 2106 | |
938e2a8d KM |
2107 | __fsi_resume(fsib, &fsib->playback, dev); |
2108 | __fsi_resume(fsib, &fsib->capture, dev); | |
106c79ec KM |
2109 | |
2110 | return 0; | |
2111 | } | |
2112 | ||
785d1c45 | 2113 | static struct dev_pm_ops fsi_pm_ops = { |
106c79ec KM |
2114 | .suspend = fsi_suspend, |
2115 | .resume = fsi_resume, | |
785d1c45 KM |
2116 | }; |
2117 | ||
a4d7d550 KM |
2118 | static struct platform_driver fsi_driver = { |
2119 | .driver = { | |
f0fba2ad | 2120 | .name = "fsi-pcm-audio", |
785d1c45 | 2121 | .pm = &fsi_pm_ops, |
9e7b6d60 | 2122 | .of_match_table = fsi_of_match, |
a4d7d550 KM |
2123 | }, |
2124 | .probe = fsi_probe, | |
2125 | .remove = fsi_remove, | |
cc780d38 | 2126 | .id_table = fsi_id_table, |
a4d7d550 KM |
2127 | }; |
2128 | ||
cb5e8738 | 2129 | module_platform_driver(fsi_driver); |
a4d7d550 | 2130 | |
1c6ae56c | 2131 | MODULE_LICENSE("GPL v2"); |
a4d7d550 KM |
2132 | MODULE_DESCRIPTION("SuperH onchip FSI audio driver"); |
2133 | MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>"); | |
b3c27b51 | 2134 | MODULE_ALIAS("platform:fsi-pcm-audio"); |