ASoC: rsnd: call request_irq/free_irq once in MIX case
[muen/linux.git] / sound / soc / sh / rcar / gen.c
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
12 /*
13  * #define DEBUG
14  *
15  * you can also add below in
16  * ${LINUX}/drivers/base/regmap/regmap.c
17  * for regmap debug
18  *
19  * #define LOG_DEVICE "xxxx.rcar_sound"
20  */
21
22 #include "rsnd.h"
23
24 struct rsnd_gen {
25         struct rsnd_gen_ops *ops;
26
27         /* RSND_BASE_MAX base */
28         void __iomem *base[RSND_BASE_MAX];
29         phys_addr_t res[RSND_BASE_MAX];
30         struct regmap *regmap[RSND_BASE_MAX];
31
32         /* RSND_REG_MAX base */
33         struct regmap_field *regs[RSND_REG_MAX];
34         const char *reg_name[RSND_REG_MAX];
35 };
36
37 #define rsnd_priv_to_gen(p)     ((struct rsnd_gen *)(p)->gen)
38 #define rsnd_reg_name(gen, id)  ((gen)->reg_name[id])
39
40 struct rsnd_regmap_field_conf {
41         int idx;
42         unsigned int reg_offset;
43         unsigned int id_offset;
44         const char *reg_name;
45 };
46
47 #define RSND_REG_SET(id, offset, _id_offset, n) \
48 {                                               \
49         .idx = id,                              \
50         .reg_offset = offset,                   \
51         .id_offset = _id_offset,                \
52         .reg_name = n,                          \
53 }
54 /* single address mapping */
55 #define RSND_GEN_S_REG(id, offset)      \
56         RSND_REG_SET(RSND_REG_##id, offset, 0, #id)
57
58 /* multi address mapping */
59 #define RSND_GEN_M_REG(id, offset, _id_offset)  \
60         RSND_REG_SET(RSND_REG_##id, offset, _id_offset, #id)
61
62 /*
63  *              basic function
64  */
65 static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
66                                   struct rsnd_gen *gen, enum rsnd_reg reg)
67 {
68         if (!gen->regs[reg]) {
69                 struct device *dev = rsnd_priv_to_dev(priv);
70
71                 dev_err(dev, "unsupported register access %x\n", reg);
72                 return 0;
73         }
74
75         return 1;
76 }
77
78 u32 rsnd_read(struct rsnd_priv *priv,
79               struct rsnd_mod *mod, enum rsnd_reg reg)
80 {
81         struct device *dev = rsnd_priv_to_dev(priv);
82         struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
83         u32 val;
84
85         if (!rsnd_is_accessible_reg(priv, gen, reg))
86                 return 0;
87
88         regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
89
90         dev_dbg(dev, "r %s[%d] - %-18s (%4d) : %08x\n",
91                 rsnd_mod_name(mod), rsnd_mod_id(mod),
92                 rsnd_reg_name(gen, reg), reg, val);
93
94         return val;
95 }
96
97 void rsnd_write(struct rsnd_priv *priv,
98                 struct rsnd_mod *mod,
99                 enum rsnd_reg reg, u32 data)
100 {
101         struct device *dev = rsnd_priv_to_dev(priv);
102         struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
103
104         if (!rsnd_is_accessible_reg(priv, gen, reg))
105                 return;
106
107         regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data);
108
109         dev_dbg(dev, "w %s[%d] - %-18s (%4d) : %08x\n",
110                 rsnd_mod_name(mod), rsnd_mod_id(mod),
111                 rsnd_reg_name(gen, reg), reg, data);
112 }
113
114 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
115                enum rsnd_reg reg, u32 mask, u32 data)
116 {
117         struct device *dev = rsnd_priv_to_dev(priv);
118         struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
119
120         if (!rsnd_is_accessible_reg(priv, gen, reg))
121                 return;
122
123         regmap_fields_force_update_bits(gen->regs[reg],
124                                         rsnd_mod_id(mod), mask, data);
125
126         dev_dbg(dev, "b %s[%d] - %-18s (%4d) : %08x/%08x\n",
127                 rsnd_mod_name(mod), rsnd_mod_id(mod),
128                 rsnd_reg_name(gen, reg), reg, data, mask);
129
130 }
131
132 phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
133 {
134         struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
135
136         return  gen->res[reg_id];
137 }
138
139 #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf)         \
140         _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
141 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
142                                  int id_size,
143                                  int reg_id,
144                                  const char *name,
145                                  const struct rsnd_regmap_field_conf *conf,
146                                  int conf_size)
147 {
148         struct platform_device *pdev = rsnd_priv_to_pdev(priv);
149         struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
150         struct device *dev = rsnd_priv_to_dev(priv);
151         struct resource *res;
152         struct regmap_config regc;
153         struct regmap_field *regs;
154         struct regmap *regmap;
155         struct reg_field regf;
156         void __iomem *base;
157         int i;
158
159         memset(&regc, 0, sizeof(regc));
160         regc.reg_bits = 32;
161         regc.val_bits = 32;
162         regc.reg_stride = 4;
163         regc.name = name;
164
165         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
166         if (!res)
167                 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
168         if (!res)
169                 return -ENODEV;
170
171         base = devm_ioremap_resource(dev, res);
172         if (IS_ERR(base))
173                 return PTR_ERR(base);
174
175         regmap = devm_regmap_init_mmio(dev, base, &regc);
176         if (IS_ERR(regmap))
177                 return PTR_ERR(regmap);
178
179         /* RSND_BASE_MAX base */
180         gen->base[reg_id] = base;
181         gen->regmap[reg_id] = regmap;
182         gen->res[reg_id] = res->start;
183
184         for (i = 0; i < conf_size; i++) {
185
186                 regf.reg        = conf[i].reg_offset;
187                 regf.id_offset  = conf[i].id_offset;
188                 regf.lsb        = 0;
189                 regf.msb        = 31;
190                 regf.id_size    = id_size;
191
192                 regs = devm_regmap_field_alloc(dev, regmap, regf);
193                 if (IS_ERR(regs))
194                         return PTR_ERR(regs);
195
196                 /* RSND_REG_MAX base */
197                 gen->regs[conf[i].idx] = regs;
198                 gen->reg_name[conf[i].idx] = conf[i].reg_name;
199         }
200
201         return 0;
202 }
203
204 /*
205  *              Gen2
206  */
207 static int rsnd_gen2_probe(struct rsnd_priv *priv)
208 {
209         static const struct rsnd_regmap_field_conf conf_ssiu[] = {
210                 RSND_GEN_S_REG(SSI_MODE0,       0x800),
211                 RSND_GEN_S_REG(SSI_MODE1,       0x804),
212                 RSND_GEN_S_REG(SSI_MODE2,       0x808),
213                 RSND_GEN_S_REG(SSI_CONTROL,     0x810),
214                 RSND_GEN_S_REG(SSI_SYS_STATUS0, 0x840),
215                 RSND_GEN_S_REG(SSI_SYS_STATUS1, 0x844),
216                 RSND_GEN_S_REG(SSI_SYS_STATUS2, 0x848),
217                 RSND_GEN_S_REG(SSI_SYS_STATUS3, 0x84c),
218                 RSND_GEN_S_REG(SSI_SYS_STATUS4, 0x880),
219                 RSND_GEN_S_REG(SSI_SYS_STATUS5, 0x884),
220                 RSND_GEN_S_REG(SSI_SYS_STATUS6, 0x888),
221                 RSND_GEN_S_REG(SSI_SYS_STATUS7, 0x88c),
222                 RSND_GEN_S_REG(HDMI0_SEL,       0x9e0),
223                 RSND_GEN_S_REG(HDMI1_SEL,       0x9e4),
224
225                 /* FIXME: it needs SSI_MODE2/3 in the future */
226                 RSND_GEN_M_REG(SSI_BUSIF_MODE,  0x0,    0x80),
227                 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4,    0x80),
228                 RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8,    0x80),
229                 RSND_GEN_M_REG(SSI_MODE,        0xc,    0x80),
230                 RSND_GEN_M_REG(SSI_CTRL,        0x10,   0x80),
231                 RSND_GEN_M_REG(SSI_INT_ENABLE,  0x18,   0x80),
232         };
233
234         static const struct rsnd_regmap_field_conf conf_scu[] = {
235                 RSND_GEN_M_REG(SRC_I_BUSIF_MODE,0x0,    0x20),
236                 RSND_GEN_M_REG(SRC_O_BUSIF_MODE,0x4,    0x20),
237                 RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8,    0x20),
238                 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc,    0x20),
239                 RSND_GEN_M_REG(SRC_CTRL,        0x10,   0x20),
240                 RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18,   0x20),
241                 RSND_GEN_M_REG(CMD_BUSIF_MODE,  0x184,  0x20),
242                 RSND_GEN_M_REG(CMD_BUSIF_DALIGN,0x188,  0x20),
243                 RSND_GEN_M_REG(CMD_ROUTE_SLCT,  0x18c,  0x20),
244                 RSND_GEN_M_REG(CMD_CTRL,        0x190,  0x20),
245                 RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8),
246                 RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc),
247                 RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0),
248                 RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1d4),
249                 RSND_GEN_M_REG(SRC_SWRSR,       0x200,  0x40),
250                 RSND_GEN_M_REG(SRC_SRCIR,       0x204,  0x40),
251                 RSND_GEN_M_REG(SRC_ADINR,       0x214,  0x40),
252                 RSND_GEN_M_REG(SRC_IFSCR,       0x21c,  0x40),
253                 RSND_GEN_M_REG(SRC_IFSVR,       0x220,  0x40),
254                 RSND_GEN_M_REG(SRC_SRCCR,       0x224,  0x40),
255                 RSND_GEN_M_REG(SRC_BSDSR,       0x22c,  0x40),
256                 RSND_GEN_M_REG(SRC_BSISR,       0x238,  0x40),
257                 RSND_GEN_M_REG(CTU_SWRSR,       0x500,  0x100),
258                 RSND_GEN_M_REG(CTU_CTUIR,       0x504,  0x100),
259                 RSND_GEN_M_REG(CTU_ADINR,       0x508,  0x100),
260                 RSND_GEN_M_REG(CTU_CPMDR,       0x510,  0x100),
261                 RSND_GEN_M_REG(CTU_SCMDR,       0x514,  0x100),
262                 RSND_GEN_M_REG(CTU_SV00R,       0x518,  0x100),
263                 RSND_GEN_M_REG(CTU_SV01R,       0x51c,  0x100),
264                 RSND_GEN_M_REG(CTU_SV02R,       0x520,  0x100),
265                 RSND_GEN_M_REG(CTU_SV03R,       0x524,  0x100),
266                 RSND_GEN_M_REG(CTU_SV04R,       0x528,  0x100),
267                 RSND_GEN_M_REG(CTU_SV05R,       0x52c,  0x100),
268                 RSND_GEN_M_REG(CTU_SV06R,       0x530,  0x100),
269                 RSND_GEN_M_REG(CTU_SV07R,       0x534,  0x100),
270                 RSND_GEN_M_REG(CTU_SV10R,       0x538,  0x100),
271                 RSND_GEN_M_REG(CTU_SV11R,       0x53c,  0x100),
272                 RSND_GEN_M_REG(CTU_SV12R,       0x540,  0x100),
273                 RSND_GEN_M_REG(CTU_SV13R,       0x544,  0x100),
274                 RSND_GEN_M_REG(CTU_SV14R,       0x548,  0x100),
275                 RSND_GEN_M_REG(CTU_SV15R,       0x54c,  0x100),
276                 RSND_GEN_M_REG(CTU_SV16R,       0x550,  0x100),
277                 RSND_GEN_M_REG(CTU_SV17R,       0x554,  0x100),
278                 RSND_GEN_M_REG(CTU_SV20R,       0x558,  0x100),
279                 RSND_GEN_M_REG(CTU_SV21R,       0x55c,  0x100),
280                 RSND_GEN_M_REG(CTU_SV22R,       0x560,  0x100),
281                 RSND_GEN_M_REG(CTU_SV23R,       0x564,  0x100),
282                 RSND_GEN_M_REG(CTU_SV24R,       0x568,  0x100),
283                 RSND_GEN_M_REG(CTU_SV25R,       0x56c,  0x100),
284                 RSND_GEN_M_REG(CTU_SV26R,       0x570,  0x100),
285                 RSND_GEN_M_REG(CTU_SV27R,       0x574,  0x100),
286                 RSND_GEN_M_REG(CTU_SV30R,       0x578,  0x100),
287                 RSND_GEN_M_REG(CTU_SV31R,       0x57c,  0x100),
288                 RSND_GEN_M_REG(CTU_SV32R,       0x580,  0x100),
289                 RSND_GEN_M_REG(CTU_SV33R,       0x584,  0x100),
290                 RSND_GEN_M_REG(CTU_SV34R,       0x588,  0x100),
291                 RSND_GEN_M_REG(CTU_SV35R,       0x58c,  0x100),
292                 RSND_GEN_M_REG(CTU_SV36R,       0x590,  0x100),
293                 RSND_GEN_M_REG(CTU_SV37R,       0x594,  0x100),
294                 RSND_GEN_M_REG(MIX_SWRSR,       0xd00,  0x40),
295                 RSND_GEN_M_REG(MIX_MIXIR,       0xd04,  0x40),
296                 RSND_GEN_M_REG(MIX_ADINR,       0xd08,  0x40),
297                 RSND_GEN_M_REG(MIX_MIXMR,       0xd10,  0x40),
298                 RSND_GEN_M_REG(MIX_MVPDR,       0xd14,  0x40),
299                 RSND_GEN_M_REG(MIX_MDBAR,       0xd18,  0x40),
300                 RSND_GEN_M_REG(MIX_MDBBR,       0xd1c,  0x40),
301                 RSND_GEN_M_REG(MIX_MDBCR,       0xd20,  0x40),
302                 RSND_GEN_M_REG(MIX_MDBDR,       0xd24,  0x40),
303                 RSND_GEN_M_REG(MIX_MDBER,       0xd28,  0x40),
304                 RSND_GEN_M_REG(DVC_SWRSR,       0xe00,  0x100),
305                 RSND_GEN_M_REG(DVC_DVUIR,       0xe04,  0x100),
306                 RSND_GEN_M_REG(DVC_ADINR,       0xe08,  0x100),
307                 RSND_GEN_M_REG(DVC_DVUCR,       0xe10,  0x100),
308                 RSND_GEN_M_REG(DVC_ZCMCR,       0xe14,  0x100),
309                 RSND_GEN_M_REG(DVC_VRCTR,       0xe18,  0x100),
310                 RSND_GEN_M_REG(DVC_VRPDR,       0xe1c,  0x100),
311                 RSND_GEN_M_REG(DVC_VRDBR,       0xe20,  0x100),
312                 RSND_GEN_M_REG(DVC_VOL0R,       0xe28,  0x100),
313                 RSND_GEN_M_REG(DVC_VOL1R,       0xe2c,  0x100),
314                 RSND_GEN_M_REG(DVC_VOL2R,       0xe30,  0x100),
315                 RSND_GEN_M_REG(DVC_VOL3R,       0xe34,  0x100),
316                 RSND_GEN_M_REG(DVC_VOL4R,       0xe38,  0x100),
317                 RSND_GEN_M_REG(DVC_VOL5R,       0xe3c,  0x100),
318                 RSND_GEN_M_REG(DVC_VOL6R,       0xe40,  0x100),
319                 RSND_GEN_M_REG(DVC_VOL7R,       0xe44,  0x100),
320                 RSND_GEN_M_REG(DVC_DVUER,       0xe48,  0x100),
321         };
322         static const struct rsnd_regmap_field_conf conf_adg[] = {
323                 RSND_GEN_S_REG(BRRA,            0x00),
324                 RSND_GEN_S_REG(BRRB,            0x04),
325                 RSND_GEN_S_REG(BRGCKR,          0x08),
326                 RSND_GEN_S_REG(AUDIO_CLK_SEL0,  0x0c),
327                 RSND_GEN_S_REG(AUDIO_CLK_SEL1,  0x10),
328                 RSND_GEN_S_REG(AUDIO_CLK_SEL2,  0x14),
329                 RSND_GEN_S_REG(DIV_EN,          0x30),
330                 RSND_GEN_S_REG(SRCIN_TIMSEL0,   0x34),
331                 RSND_GEN_S_REG(SRCIN_TIMSEL1,   0x38),
332                 RSND_GEN_S_REG(SRCIN_TIMSEL2,   0x3c),
333                 RSND_GEN_S_REG(SRCIN_TIMSEL3,   0x40),
334                 RSND_GEN_S_REG(SRCIN_TIMSEL4,   0x44),
335                 RSND_GEN_S_REG(SRCOUT_TIMSEL0,  0x48),
336                 RSND_GEN_S_REG(SRCOUT_TIMSEL1,  0x4c),
337                 RSND_GEN_S_REG(SRCOUT_TIMSEL2,  0x50),
338                 RSND_GEN_S_REG(SRCOUT_TIMSEL3,  0x54),
339                 RSND_GEN_S_REG(SRCOUT_TIMSEL4,  0x58),
340                 RSND_GEN_S_REG(CMDOUT_TIMSEL,   0x5c),
341         };
342         static const struct rsnd_regmap_field_conf conf_ssi[] = {
343                 RSND_GEN_M_REG(SSICR,           0x00,   0x40),
344                 RSND_GEN_M_REG(SSISR,           0x04,   0x40),
345                 RSND_GEN_M_REG(SSITDR,          0x08,   0x40),
346                 RSND_GEN_M_REG(SSIRDR,          0x0c,   0x40),
347                 RSND_GEN_M_REG(SSIWSR,          0x20,   0x40),
348         };
349         int ret_ssiu;
350         int ret_scu;
351         int ret_adg;
352         int ret_ssi;
353
354         ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
355         ret_scu  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU,  "scu",  conf_scu);
356         ret_adg  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG,  "adg",  conf_adg);
357         ret_ssi  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI,  "ssi",  conf_ssi);
358         if (ret_ssiu < 0 ||
359             ret_scu  < 0 ||
360             ret_adg  < 0 ||
361             ret_ssi  < 0)
362                 return ret_ssiu | ret_scu | ret_adg | ret_ssi;
363
364         return 0;
365 }
366
367 /*
368  *              Gen1
369  */
370
371 static int rsnd_gen1_probe(struct rsnd_priv *priv)
372 {
373         static const struct rsnd_regmap_field_conf conf_adg[] = {
374                 RSND_GEN_S_REG(BRRA,            0x00),
375                 RSND_GEN_S_REG(BRRB,            0x04),
376                 RSND_GEN_S_REG(BRGCKR,          0x08),
377                 RSND_GEN_S_REG(AUDIO_CLK_SEL0,  0x0c),
378                 RSND_GEN_S_REG(AUDIO_CLK_SEL1,  0x10),
379         };
380         static const struct rsnd_regmap_field_conf conf_ssi[] = {
381                 RSND_GEN_M_REG(SSICR,           0x00,   0x40),
382                 RSND_GEN_M_REG(SSISR,           0x04,   0x40),
383                 RSND_GEN_M_REG(SSITDR,          0x08,   0x40),
384                 RSND_GEN_M_REG(SSIRDR,          0x0c,   0x40),
385                 RSND_GEN_M_REG(SSIWSR,          0x20,   0x40),
386         };
387         int ret_adg;
388         int ret_ssi;
389
390         ret_adg  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
391         ret_ssi  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
392         if (ret_adg  < 0 ||
393             ret_ssi  < 0)
394                 return ret_adg | ret_ssi;
395
396         return 0;
397 }
398
399 /*
400  *              Gen
401  */
402 int rsnd_gen_probe(struct rsnd_priv *priv)
403 {
404         struct device *dev = rsnd_priv_to_dev(priv);
405         struct rsnd_gen *gen;
406         int ret;
407
408         gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
409         if (!gen) {
410                 dev_err(dev, "GEN allocate failed\n");
411                 return -ENOMEM;
412         }
413
414         priv->gen = gen;
415
416         ret = -ENODEV;
417         if (rsnd_is_gen1(priv))
418                 ret = rsnd_gen1_probe(priv);
419         else if (rsnd_is_gen2(priv))
420                 ret = rsnd_gen2_probe(priv);
421
422         if (ret < 0)
423                 dev_err(dev, "unknown generation R-Car sound device\n");
424
425         return ret;
426 }