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ASoC: rcar: Use && instead of & for boolean expressions
[linux-2.6/btrfs-unstable.git] / sound / soc / sh / rcar / gen.c
blobf95e7ab135e83266f958c49801284a6e780744a3
1 /*
2 * Renesas R-Car Gen1 SRU/SSI support
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11 #include "rsnd.h"
12
13 struct rsnd_gen {
14 void __iomem *base[RSND_BASE_MAX];
15
16 struct rsnd_gen_ops *ops;
17
18 struct regmap *regmap[RSND_BASE_MAX];
19 struct regmap_field *regs[RSND_REG_MAX];
20 };
21
22 #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
23
24 struct rsnd_regmap_field_conf {
25 int idx;
26 unsigned int reg_offset;
27 unsigned int id_offset;
28 };
29
30 #define RSND_REG_SET(id, offset, _id_offset) \
31 { \
32 .idx = id, \
33 .reg_offset = offset, \
34 .id_offset = _id_offset, \
35 }
36 /* single address mapping */
37 #define RSND_GEN_S_REG(id, offset) \
38 RSND_REG_SET(RSND_REG_##id, offset, 0)
39
40 /* multi address mapping */
41 #define RSND_GEN_M_REG(id, offset, _id_offset) \
42 RSND_REG_SET(RSND_REG_##id, offset, _id_offset)
43
44 /*
45 * basic function
46 */
47 static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
48 struct rsnd_gen *gen, enum rsnd_reg reg)
49 {
50 if (!gen->regs[reg]) {
51 struct device *dev = rsnd_priv_to_dev(priv);
52
53 dev_err(dev, "unsupported register access %x\n", reg);
54 return 0;
55 }
56
57 return 1;
58 }
59
60 u32 rsnd_read(struct rsnd_priv *priv,
61 struct rsnd_mod *mod, enum rsnd_reg reg)
62 {
63 struct device *dev = rsnd_priv_to_dev(priv);
64 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
65 u32 val;
66
67 if (!rsnd_is_accessible_reg(priv, gen, reg))
68 return 0;
69
70 regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
71
72 dev_dbg(dev, "r %s - 0x%04d : %08x\n", rsnd_mod_name(mod), reg, val);
73
74 return val;
75 }
76
77 void rsnd_write(struct rsnd_priv *priv,
78 struct rsnd_mod *mod,
79 enum rsnd_reg reg, u32 data)
80 {
81 struct device *dev = rsnd_priv_to_dev(priv);
82 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
83
84 if (!rsnd_is_accessible_reg(priv, gen, reg))
85 return;
86
87 regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
88
89 dev_dbg(dev, "w %s - 0x%04d : %08x\n", rsnd_mod_name(mod), reg, data);
90 }
91
92 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
93 enum rsnd_reg reg, u32 mask, u32 data)
94 {
95 struct device *dev = rsnd_priv_to_dev(priv);
96 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
97
98 if (!rsnd_is_accessible_reg(priv, gen, reg))
99 return;
100
101 regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
102 mask, data);
103
104 dev_dbg(dev, "b %s - 0x%04d : %08x/%08x\n",
105 rsnd_mod_name(mod), reg, data, mask);
106 }
107
108 #define rsnd_gen_regmap_init(priv, id_size, reg_id, conf) \
109 _rsnd_gen_regmap_init(priv, id_size, reg_id, conf, ARRAY_SIZE(conf))
110 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
111 int id_size,
112 int reg_id,
113 struct rsnd_regmap_field_conf *conf,
114 int conf_size)
115 {
116 struct platform_device *pdev = rsnd_priv_to_pdev(priv);
117 struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
118 struct device *dev = rsnd_priv_to_dev(priv);
119 struct resource *res;
120 struct regmap_config regc;
121 struct regmap_field *regs;
122 struct regmap *regmap;
123 struct reg_field regf;
124 void __iomem *base;
125 int i;
126
127 memset(&regc, 0, sizeof(regc));
128 regc.reg_bits = 32;
129 regc.val_bits = 32;
130 regc.reg_stride = 4;
131
132 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
133 if (!res)
134 return -ENODEV;
135
136 base = devm_ioremap_resource(dev, res);
137 if (IS_ERR(base))
138 return PTR_ERR(base);
139
140 regmap = devm_regmap_init_mmio(dev, base, &regc);
141 if (IS_ERR(regmap))
142 return PTR_ERR(regmap);
143
144 gen->base[reg_id] = base;
145 gen->regmap[reg_id] = regmap;
146
147 for (i = 0; i < conf_size; i++) {
148
149 regf.reg = conf[i].reg_offset;
150 regf.id_offset = conf[i].id_offset;
151 regf.lsb = 0;
152 regf.msb = 31;
153 regf.id_size = id_size;
154
155 regs = devm_regmap_field_alloc(dev, regmap, regf);
156 if (IS_ERR(regs))
157 return PTR_ERR(regs);
158
159 gen->regs[conf[i].idx] = regs;
160 }
161
162 return 0;
163 }
164
165 /*
166 * DMA read/write register offset
167 *
168 * RSND_xxx_I_N for Audio DMAC input
169 * RSND_xxx_O_N for Audio DMAC output
170 * RSND_xxx_I_P for Audio DMAC peri peri input
171 * RSND_xxx_O_P for Audio DMAC peri peri output
172 *
173 * ex) R-Car H2 case
174 * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out
175 * SSI : 0xec541000 / 0xec241008 / 0xec24100c
176 * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000
177 * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
178 * CMD : 0xec500000 / / 0xec008000 0xec308000
179 */
180 #define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
181 #define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
182
183 #define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
184 #define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
185
186 #define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
187 #define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
188
189 #define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
190 #define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i))
191
192 #define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i))
193 #define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i))
194
195 #define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i))
196 #define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i))
197
198 static dma_addr_t
199 rsnd_gen2_dma_addr(struct rsnd_priv *priv,
200 struct rsnd_mod *mod,
201 int is_play, int is_from)
202 {
203 struct platform_device *pdev = rsnd_priv_to_pdev(priv);
204 struct device *dev = rsnd_priv_to_dev(priv);
205 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
206 dma_addr_t ssi_reg = platform_get_resource(pdev,
207 IORESOURCE_MEM, RSND_GEN2_SSI)->start;
208 dma_addr_t src_reg = platform_get_resource(pdev,
209 IORESOURCE_MEM, RSND_GEN2_SCU)->start;
210 int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);
211 int use_src = !!rsnd_io_to_mod_src(io);
212 int use_dvc = !!rsnd_io_to_mod_dvc(io);
213 int id = rsnd_mod_id(mod);
214 struct dma_addr {
215 dma_addr_t out_addr;
216 dma_addr_t in_addr;
217 } dma_addrs[3][2][3] = {
218 /* SRC */
219 {{{ 0, 0 },
220 /* Capture */
221 { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) },
222 { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } },
223 /* Playback */
224 {{ 0, 0, },
225 { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) },
226 { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } }
227 },
228 /* SSI */
229 /* Capture */
230 {{{ RDMA_SSI_O_N(ssi, id), 0 },
231 { RDMA_SSIU_O_P(ssi, id), 0 },
232 { RDMA_SSIU_O_P(ssi, id), 0 } },
233 /* Playback */
234 {{ 0, RDMA_SSI_I_N(ssi, id) },
235 { 0, RDMA_SSIU_I_P(ssi, id) },
236 { 0, RDMA_SSIU_I_P(ssi, id) } }
237 },
238 /* SSIU */
239 /* Capture */
240 {{{ RDMA_SSIU_O_N(ssi, id), 0 },
241 { RDMA_SSIU_O_P(ssi, id), 0 },
242 { RDMA_SSIU_O_P(ssi, id), 0 } },
243 /* Playback */
244 {{ 0, RDMA_SSIU_I_N(ssi, id) },
245 { 0, RDMA_SSIU_I_P(ssi, id) },
246 { 0, RDMA_SSIU_I_P(ssi, id) } } },
247 };
248
249 /* it shouldn't happen */
250 if (use_dvc && !use_src)
251 dev_err(dev, "DVC is selected without SRC\n");
252
253 /* use SSIU or SSI ? */
254 if (is_ssi && (0 == strcmp(rsnd_mod_dma_name(mod), "ssiu")))
255 is_ssi++;
256
257 return (is_from) ?
258 dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr :
259 dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr;
260 }
261
262 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
263 struct rsnd_mod *mod,
264 int is_play, int is_from)
265 {
266 /*
267 * gen1 uses default DMA addr
268 */
269 if (rsnd_is_gen1(priv))
270 return 0;
271
272 if (!mod)
273 return 0;
274
275 return rsnd_gen2_dma_addr(priv, mod, is_play, is_from);
276 }
277
278 /*
279 * Gen2
280 */
281 static int rsnd_gen2_probe(struct platform_device *pdev,
282 struct rsnd_priv *priv)
283 {
284 struct device *dev = rsnd_priv_to_dev(priv);
285 struct rsnd_regmap_field_conf conf_ssiu[] = {
286 RSND_GEN_S_REG(SSI_MODE0, 0x800),
287 RSND_GEN_S_REG(SSI_MODE1, 0x804),
288 /* FIXME: it needs SSI_MODE2/3 in the future */
289 RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80),
290 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80),
291 RSND_GEN_M_REG(BUSIF_DALIGN, 0x8, 0x80),
292 RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
293 RSND_GEN_M_REG(INT_ENABLE, 0x18, 0x80),
294 };
295 struct rsnd_regmap_field_conf conf_scu[] = {
296 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20),
297 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20),
298 RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20),
299 RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20),
300 RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20),
301 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
302 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
303 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
304 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
305 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
306 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
307 RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40),
308 RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40),
309 RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100),
310 RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100),
311 RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100),
312 RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100),
313 RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100),
314 RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100),
315 RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100),
316 RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100),
317 };
318 struct rsnd_regmap_field_conf conf_adg[] = {
319 RSND_GEN_S_REG(BRRA, 0x00),
320 RSND_GEN_S_REG(BRRB, 0x04),
321 RSND_GEN_S_REG(SSICKR, 0x08),
322 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
323 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
324 RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14),
325 RSND_GEN_S_REG(DIV_EN, 0x30),
326 RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34),
327 RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38),
328 RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c),
329 RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40),
330 RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44),
331 RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48),
332 RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c),
333 RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50),
334 RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54),
335 RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58),
336 RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c),
337 };
338 struct rsnd_regmap_field_conf conf_ssi[] = {
339 RSND_GEN_M_REG(SSICR, 0x00, 0x40),
340 RSND_GEN_M_REG(SSISR, 0x04, 0x40),
341 RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
342 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
343 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
344 };
345 int ret_ssiu;
346 int ret_scu;
347 int ret_adg;
348 int ret_ssi;
349
350 ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, conf_ssiu);
351 ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, conf_scu);
352 ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, conf_adg);
353 ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, conf_ssi);
354 if (ret_ssiu < 0 ||
355 ret_scu < 0 ||
356 ret_adg < 0 ||
357 ret_ssi < 0)
358 return ret_ssiu | ret_scu | ret_adg | ret_ssi;
359
360 dev_dbg(dev, "Gen2 is probed\n");
361
362 return 0;
363 }
364
365 /*
366 * Gen1
367 */
368
369 static int rsnd_gen1_probe(struct platform_device *pdev,
370 struct rsnd_priv *priv)
371 {
372 struct device *dev = rsnd_priv_to_dev(priv);
373 struct rsnd_regmap_field_conf conf_sru[] = {
374 RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00),
375 RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08),
376 RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c),
377 RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10),
378 RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0),
379 RSND_GEN_S_REG(SSI_MODE0, 0xD0),
380 RSND_GEN_S_REG(SSI_MODE1, 0xD4),
381 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4),
382 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8),
383 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
384 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
385 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
386 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
387 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
388 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
389 RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40),
390 };
391 struct rsnd_regmap_field_conf conf_adg[] = {
392 RSND_GEN_S_REG(BRRA, 0x00),
393 RSND_GEN_S_REG(BRRB, 0x04),
394 RSND_GEN_S_REG(SSICKR, 0x08),
395 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
396 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
397 RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18),
398 RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c),
399 RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20),
400 };
401 struct rsnd_regmap_field_conf conf_ssi[] = {
402 RSND_GEN_M_REG(SSICR, 0x00, 0x40),
403 RSND_GEN_M_REG(SSISR, 0x04, 0x40),
404 RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
405 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
406 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
407 };
408 int ret_sru;
409 int ret_adg;
410 int ret_ssi;
411
412 ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, conf_sru);
413 ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, conf_adg);
414 ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, conf_ssi);
415 if (ret_sru < 0 ||
416 ret_adg < 0 ||
417 ret_ssi < 0)
418 return ret_sru | ret_adg | ret_ssi;
419
420 dev_dbg(dev, "Gen1 is probed\n");
421
422 return 0;
423 }
424
425 /*
426 * Gen
427 */
428 static void rsnd_of_parse_gen(struct platform_device *pdev,
429 const struct rsnd_of_data *of_data,
430 struct rsnd_priv *priv)
431 {
432 struct rcar_snd_info *info = priv->info;
433
434 if (!of_data)
435 return;
436
437 info->flags = of_data->flags;
438 }
439
440 int rsnd_gen_probe(struct platform_device *pdev,
441 const struct rsnd_of_data *of_data,
442 struct rsnd_priv *priv)
443 {
444 struct device *dev = rsnd_priv_to_dev(priv);
445 struct rsnd_gen *gen;
446 int ret;
447
448 rsnd_of_parse_gen(pdev, of_data, priv);
449
450 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
451 if (!gen) {
452 dev_err(dev, "GEN allocate failed\n");
453 return -ENOMEM;
454 }
455
456 priv->gen = gen;
457
458 ret = -ENODEV;
459 if (rsnd_is_gen1(priv))
460 ret = rsnd_gen1_probe(pdev, priv);
461 else if (rsnd_is_gen2(priv))
462 ret = rsnd_gen2_probe(pdev, priv);
463
464 if (ret < 0)
465 dev_err(dev, "unknown generation R-Car sound device\n");
466
467 return ret;
468 }
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