aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.19/950-0084-Driver-and-overlay-for-Allo-Katana-DAC.patch
blob: 8b1d07da192889b87e24831a753e6893c7bffe0a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
From c0d6027b9ffeb526710bc31e6dc54f4cb4199454 Mon Sep 17 00:00:00 2001
From: allocom <sparky-dev@allo.com>
Date: Thu, 19 Apr 2018 12:12:26 +0530
Subject: [PATCH 084/782] Driver and overlay for Allo Katana DAC

Allo Katana DAC: Updated default values

Signed-off-by: Jaikumar <jaikumar@cem-solutions.com>
---
 sound/soc/bcm/allo-katana-codec.c | 360 ++++++++++++++++++++++++++++++
 1 file changed, 360 insertions(+)
 create mode 100644 sound/soc/bcm/allo-katana-codec.c

--- /dev/null
+++ b/sound/soc/bcm/allo-katana-codec.c
@@ -0,0 +1,360 @@
+/*
+ * Driver for the ALLO KATANA CODEC
+ *
+ * Author: Jaikumar <jaikumar@cem-solutions.net>
+ *		Copyright 2018
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gcd.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include <linux/i2c.h>
+
+
+#define KATANA_CODEC_CHIP_ID		0x30
+#define KATANA_CODEC_VIRT_BASE		0x100
+#define KATANA_CODEC_PAGE			0
+
+#define KATANA_CODEC_CHIP_ID_REG	(KATANA_CODEC_VIRT_BASE + 0)
+#define KATANA_CODEC_RESET			(KATANA_CODEC_VIRT_BASE + 1)
+#define KATANA_CODEC_VOLUME_1		(KATANA_CODEC_VIRT_BASE + 2)
+#define KATANA_CODEC_VOLUME_2		(KATANA_CODEC_VIRT_BASE + 3)
+#define KATANA_CODEC_MUTE			(KATANA_CODEC_VIRT_BASE + 4)
+#define KATANA_CODEC_DSP_PROGRAM	(KATANA_CODEC_VIRT_BASE + 5)
+#define KATANA_CODEC_DEEMPHASIS		(KATANA_CODEC_VIRT_BASE + 6)
+#define KATANA_CODEC_DOP			(KATANA_CODEC_VIRT_BASE + 7)
+#define KATANA_CODEC_FORMAT			(KATANA_CODEC_VIRT_BASE + 8)
+#define KATANA_CODEC_COMMAND		(KATANA_CODEC_VIRT_BASE + 9)
+#define KATANA_CODEC_MAX_REGISTER	(KATANA_CODEC_VIRT_BASE + 9)
+
+#define KATANA_CODEC_FMT			0xff
+#define KATANA_CODEC_CHAN_MONO		0x00
+#define KATANA_CODEC_CHAN_STEREO	0x80
+#define KATANA_CODEC_ALEN_16		0x10
+#define KATANA_CODEC_ALEN_24		0x20
+#define KATANA_CODEC_ALEN_32		0x30
+#define KATANA_CODEC_RATE_11025		0x01
+#define KATANA_CODEC_RATE_22050		0x02
+#define KATANA_CODEC_RATE_32000		0x03
+#define KATANA_CODEC_RATE_44100		0x04
+#define KATANA_CODEC_RATE_48000		0x05
+#define KATANA_CODEC_RATE_88200		0x06
+#define KATANA_CODEC_RATE_96000		0x07
+#define KATANA_CODEC_RATE_176400	0x08
+#define KATANA_CODEC_RATE_192000	0x09
+#define KATANA_CODEC_RATE_352800	0x0a
+#define KATANA_CODEC_RATE_384000	0x0b
+
+
+struct katana_codec_priv {
+	struct regmap *regmap;
+	int fmt;
+};
+
+static const struct reg_default katana_codec_reg_defaults[] = {
+	{ KATANA_CODEC_RESET,		0x00 },
+	{ KATANA_CODEC_VOLUME_1,	0xF0 },
+	{ KATANA_CODEC_VOLUME_2,	0xF0 },
+	{ KATANA_CODEC_MUTE,		0x00 },
+	{ KATANA_CODEC_DSP_PROGRAM,	0x04 },
+	{ KATANA_CODEC_DEEMPHASIS,	0x00 },
+	{ KATANA_CODEC_DOP,		0x00 },
+	{ KATANA_CODEC_FORMAT,		0xb4 },
+};
+
+static const char * const katana_codec_dsp_program_texts[] = {
+	"Linear Phase Fast Roll-off Filter",
+	"Linear Phase Slow Roll-off Filter",
+	"Minimum Phase Fast Roll-off Filter",
+	"Minimum Phase Slow Roll-off Filter",
+	"Apodizing Fast Roll-off Filter",
+	"Corrected Minimum Phase Fast Roll-off Filter",
+	"Brick Wall Filter",
+};
+
+static const unsigned int katana_codec_dsp_program_values[] = {
+	0,
+	1,
+	2,
+	3,
+	4,
+	6,
+	7,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_dsp_program,
+				  KATANA_CODEC_DSP_PROGRAM, 0, 0x07,
+				  katana_codec_dsp_program_texts,
+				  katana_codec_dsp_program_values);
+
+static const char * const katana_codec_deemphasis_texts[] = {
+	"Bypass",
+	"32kHz",
+	"44.1kHz",
+	"48kHz",
+};
+
+static const unsigned int katana_codec_deemphasis_values[] = {
+	0,
+	1,
+	2,
+	3,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_deemphasis,
+				  KATANA_CODEC_DEEMPHASIS, 0, 0x03,
+				  katana_codec_deemphasis_texts,
+				  katana_codec_deemphasis_values);
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12700, 0);
+
+static const struct snd_kcontrol_new katana_codec_controls[] = {
+	SOC_DOUBLE_R_TLV("Master Playback Volume", KATANA_CODEC_VOLUME_1,
+			KATANA_CODEC_VOLUME_2, 0, 255, 1, master_tlv),
+	SOC_DOUBLE("Master Playback Switch", KATANA_CODEC_MUTE, 0, 0, 1, 1),
+	SOC_ENUM("DSP Program Route", katana_codec_dsp_program),
+	SOC_ENUM("Deemphasis Route", katana_codec_deemphasis),
+	SOC_SINGLE("DoP Playback Switch", KATANA_CODEC_DOP, 0, 1, 1)
+};
+
+static bool katana_codec_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case KATANA_CODEC_CHIP_ID_REG:
+		return true;
+	default:
+		return reg < 0xff;
+	}
+}
+
+static int katana_codec_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct katana_codec_priv *katana_codec = snd_soc_component_get_drvdata(component);
+	int fmt = 0;
+	int ret;
+
+	dev_dbg(component->card->dev, "hw_params %u Hz, %u channels\n",
+			params_rate(params),
+			params_channels(params));
+
+	switch (katana_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM: // master
+		if (params_channels(params) == 2)
+			fmt = KATANA_CODEC_CHAN_STEREO;
+		else
+			fmt = KATANA_CODEC_CHAN_MONO;
+
+		switch (params_width(params)) {
+		case 16:
+			fmt |= KATANA_CODEC_ALEN_16;
+			break;
+		case 24:
+			fmt |= KATANA_CODEC_ALEN_24;
+			break;
+		case 32:
+			fmt |= KATANA_CODEC_ALEN_32;
+			break;
+		default:
+			dev_err(component->card->dev, "Bad frame size: %d\n",
+					params_width(params));
+			return -EINVAL;
+		}
+
+		switch (params_rate(params)) {
+		case 44100:
+			fmt |= KATANA_CODEC_RATE_44100;
+			break;
+		case 48000:
+			fmt |= KATANA_CODEC_RATE_48000;
+			break;
+		case 88200:
+			fmt |= KATANA_CODEC_RATE_88200;
+			break;
+		case 96000:
+			fmt |= KATANA_CODEC_RATE_96000;
+			break;
+		case 176400:
+			fmt |= KATANA_CODEC_RATE_176400;
+			break;
+		case 192000:
+			fmt |= KATANA_CODEC_RATE_192000;
+			break;
+		case 352800:
+			fmt |= KATANA_CODEC_RATE_352800;
+			break;
+		case 384000:
+			fmt |= KATANA_CODEC_RATE_384000;
+			break;
+		default:
+			dev_err(component->card->dev, "Bad sample rate: %d\n",
+					params_rate(params));
+			return -EINVAL;
+		}
+
+		ret = regmap_write(katana_codec->regmap, KATANA_CODEC_FORMAT, fmt);
+		if (ret != 0) {
+			dev_err(component->card->dev, "Failed to set format: %d\n", ret);
+			return ret;
+		}
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int katana_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct snd_soc_component *component = dai->component;
+	struct katana_codec_priv *katana_codec = snd_soc_component_get_drvdata(component);
+
+	katana_codec->fmt = fmt;
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops katana_codec_dai_ops = {
+	.hw_params = katana_codec_hw_params,
+	.set_fmt = katana_codec_set_fmt,
+};
+
+static struct snd_soc_dai_driver katana_codec_dai = {
+	.name = "allo-katana-codec",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.rate_min = 44100,
+		.rate_max = 384000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &katana_codec_dai_ops,
+};
+
+static struct snd_soc_component_driver katana_codec_component_driver = {
+	.idle_bias_on = true,
+
+	.controls		= katana_codec_controls,
+	.num_controls	= ARRAY_SIZE(katana_codec_controls),
+};
+
+static const struct regmap_range_cfg katana_codec_range = {
+	.name = "Pages", .range_min = KATANA_CODEC_VIRT_BASE,
+	.range_max = KATANA_CODEC_MAX_REGISTER,
+	.selector_reg = KATANA_CODEC_PAGE,
+	.selector_mask = 0xff,
+	.window_start = 0, .window_len = 0x100,
+};
+
+const struct regmap_config katana_codec_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.ranges = &katana_codec_range,
+	.num_ranges = 1,
+
+	.max_register = KATANA_CODEC_MAX_REGISTER,
+	.readable_reg = katana_codec_readable_register,
+	.reg_defaults = katana_codec_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(katana_codec_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static int allo_katana_component_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
+{
+	struct regmap *regmap;
+	struct regmap_config config = katana_codec_regmap;
+	struct device *dev = &i2c->dev;
+	struct katana_codec_priv *katana_codec;
+	unsigned int chip_id = 0;
+	int ret;
+
+	regmap = devm_regmap_init_i2c(i2c, &config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	katana_codec = devm_kzalloc(dev, sizeof(struct katana_codec_priv),
+								GFP_KERNEL);
+	if (!katana_codec)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, katana_codec);
+	katana_codec->regmap = regmap;
+
+	ret = regmap_read(regmap, KATANA_CODEC_CHIP_ID_REG, &chip_id);
+	if ((ret != 0) || (chip_id != KATANA_CODEC_CHIP_ID)) {
+		dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
+		return ret;
+	}
+	regmap_update_bits(regmap, KATANA_CODEC_RESET, 0x01, 0x01);
+	msleep(10);
+
+	ret = snd_soc_register_component(dev, &katana_codec_component_driver,
+				    &katana_codec_dai, 1);
+	if (ret != 0) {
+		dev_err(dev, "failed to register codec: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int allo_katana_component_remove(struct i2c_client *i2c)
+{
+	snd_soc_unregister_component(&i2c->dev);
+	return 0;
+}
+
+static const struct i2c_device_id allo_katana_component_id[] = {
+	{ "allo-katana-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, allo_katana_component_id);
+
+static const struct of_device_id allo_katana_codec_of_match[] = {
+	{ .compatible = "allo,allo-katana-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, allo_katana_codec_of_match);
+
+static struct i2c_driver allo_katana_component_driver = {
+	.probe		= allo_katana_component_probe,
+	.remove		= allo_katana_component_remove,
+	.id_table	= allo_katana_component_id,
+	.driver		= {
+		.name	= "allo-katana-codec",
+		.of_match_table = allo_katana_codec_of_match,
+	},
+};
+
+module_i2c_driver(allo_katana_component_driver);
+
+MODULE_DESCRIPTION("ASoC Allo Katana Codec Driver");
+MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
+MODULE_LICENSE("GPL v2");