aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.19/950-0799-Add-Hifiberry-DAC-DSP-soundcard-driver-3224.patch
blob: 52b3bca434e30e6b5a3b1f67ff1ebc9553bcd218 (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
From f0715f5e178f2f7c0afb719a3a35c8ac250b7586 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Schambacher?=
 <j-schambacher@users.noreply.github.com>
Date: Thu, 12 Sep 2019 14:57:32 +0200
Subject: [PATCH 799/806] Add Hifiberry DAC+DSP soundcard driver (#3224)

Adds the driver for the Hifiberry DAC+DSP. It supports capture and
playback depending on the DSP firmware.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
---
 arch/arm/boot/dts/overlays/Makefile           |  1 +
 arch/arm/boot/dts/overlays/README             |  6 ++
 .../overlays/hifiberry-dacplusdsp-overlay.dts | 34 +++++++
 arch/arm/configs/bcm2709_defconfig            |  1 +
 arch/arm/configs/bcm2711_defconfig            |  1 +
 arch/arm/configs/bcmrpi_defconfig             |  1 +
 sound/soc/bcm/Kconfig                         |  7 ++
 sound/soc/bcm/Makefile                        |  2 +
 sound/soc/bcm/hifiberry_dacplusdsp.c          | 90 +++++++++++++++++++
 sound/soc/bcm/rpi-simple-soundcard.c          | 19 ++++
 10 files changed, 162 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts
 create mode 100644 sound/soc/bcm/hifiberry_dacplusdsp.c

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -54,6 +54,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	hifiberry-dacplus.dtbo \
 	hifiberry-dacplusadc.dtbo \
 	hifiberry-dacplusadcpro.dtbo \
+	hifiberry-dacplusdsp.dtbo \
 	hifiberry-digi.dtbo \
 	hifiberry-digi-pro.dtbo \
 	hy28a.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -904,6 +904,12 @@ Params: 24db_digital_gain       Allow ga
                                 master for bit clock and frame clock.
 
 
+Name:   hifiberry-dacplusdsp
+Info:   Configures the HifiBerry DAC+DSP audio card
+Load:   dtoverlay=hifiberry-dacplusdsp
+Params: <None>
+
+
 Name:   hifiberry-digi
 Info:   Configures the HifiBerry Digi and Digi+ audio card
 Load:   dtoverlay=hifiberry-digi
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts
@@ -0,0 +1,34 @@
+// Definitions for hifiberry DAC+DSP soundcard overlay
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&i2s>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			dacplusdsp-codec {
+				#sound-dai-cells = <0>;
+				compatible = "hifiberry,dacplusdsp";
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sound>;
+		__overlay__ {
+			compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard";
+			i2s-controller = <&i2s>;
+			status = "okay";
+		};
+	};
+};
--- a/arch/arm/configs/bcm2709_defconfig
+++ b/arch/arm/configs/bcm2709_defconfig
@@ -970,6 +970,7 @@ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO=m
+CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
 CONFIG_SND_BCM2708_SOC_RPI_CIRRUS=m
--- a/arch/arm/configs/bcm2711_defconfig
+++ b/arch/arm/configs/bcm2711_defconfig
@@ -981,6 +981,7 @@ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO=m
+CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
 CONFIG_SND_BCM2708_SOC_RPI_CIRRUS=m
--- a/arch/arm/configs/bcmrpi_defconfig
+++ b/arch/arm/configs/bcmrpi_defconfig
@@ -962,6 +962,7 @@ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO=m
+CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
 CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
 CONFIG_SND_BCM2708_SOC_RPI_CIRRUS=m
--- a/sound/soc/bcm/Kconfig
+++ b/sound/soc/bcm/Kconfig
@@ -56,6 +56,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DACPLUS
         help
          Say Y or M if you want to add support for HifiBerry DAC+ADC PRO.
 
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP
+        tristate "Support for HifiBerry DAC+DSP"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+	select SND_RPI_SIMPLE_SOUNDCARD
+        help
+         Say Y or M if you want to add support for HifiBerry DSP-DAC.
+
 config SND_BCM2708_SOC_HIFIBERRY_DIGI
         tristate "Support for HifiBerry Digi"
         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
--- a/sound/soc/bcm/Makefile
+++ b/sound/soc/bcm/Makefile
@@ -15,6 +15,7 @@ snd-soc-googlevoicehat-codec-objs := goo
 snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
 snd-soc-hifiberry-dacplusadc-objs := hifiberry_dacplusadc.o
 snd-soc-hifiberry-dacplusadcpro-objs := hifiberry_dacplusadcpro.o
+snd-soc-hifiberry-dacplusdsp-objs := hifiberry_dacplusdsp.o
 snd-soc-justboom-dac-objs := justboom-dac.o
 snd-soc-rpi-cirrus-objs := rpi-cirrus.o
 snd-soc-rpi-proto-objs := rpi-proto.o
@@ -40,6 +41,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICE
 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC) += snd-soc-hifiberry-dacplusadc.o
 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO) += snd-soc-hifiberry-dacplusadcpro.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP) += snd-soc-hifiberry-dacplusdsp.o
 obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o
 obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o
 obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplusdsp.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ASoC Driver for HiFiBerry DAC + DSP
+ *
+ * Author:	Joerg Schambacher <joscha@schambacher.com>
+ *		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/of.h>
+#include <linux/platform_device.h>
+#include <sound/soc.h>
+
+static struct snd_soc_component_driver dacplusdsp_component_driver;
+
+static struct snd_soc_dai_driver dacplusdsp_dai = {
+	.name = "dacplusdsp-hifi",
+	.capture = {
+		.stream_name = "DAC+DSP Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			   SNDRV_PCM_FMTBIT_S24_LE |
+			   SNDRV_PCM_FMTBIT_S32_LE,
+	},
+	.playback = {
+		.stream_name = "DACP+DSP Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			   SNDRV_PCM_FMTBIT_S24_LE |
+			   SNDRV_PCM_FMTBIT_S32_LE,
+	},
+	.symmetric_rates = 1};
+
+#ifdef CONFIG_OF
+static const struct of_device_id dacplusdsp_ids[] = {
+	{
+		.compatible = "hifiberry,dacplusdsp",
+	},
+	{} };
+MODULE_DEVICE_TABLE(of, dacplusdsp_ids);
+#endif
+
+static int dacplusdsp_platform_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = snd_soc_register_component(&pdev->dev,
+			&dacplusdsp_component_driver, &dacplusdsp_dai, 1);
+	if (ret) {
+		pr_alert("snd_soc_register_component failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int dacplusdsp_platform_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_component(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver dacplusdsp_driver = {
+	.driver = {
+		.name = "hifiberry-dacplusdsp-codec",
+		.of_match_table = of_match_ptr(dacplusdsp_ids),
+		},
+		.probe = dacplusdsp_platform_probe,
+		.remove = dacplusdsp_platform_remove,
+};
+
+module_platform_driver(dacplusdsp_driver);
+
+MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP");
+MODULE_LICENSE("GPL v2");
--- a/sound/soc/bcm/rpi-simple-soundcard.c
+++ b/sound/soc/bcm/rpi-simple-soundcard.c
@@ -136,6 +136,23 @@ static struct snd_rpi_simple_drvdata drv
 	.dai       = snd_googlevoicehat_soundcard_dai,
 };
 
+static struct snd_soc_dai_link snd_hifiberrydacplusdsp_soundcard_dai[] = {
+{
+	.name           = "Hifiberry DAC+DSP SoundCard",
+	.stream_name    = "Hifiberry DAC+DSP SoundCard HiFi",
+	.codec_dai_name = "dacplusdsp-hifi",
+	.codec_name     = "dacplusdsp-codec",
+	.dai_fmt        =  SND_SOC_DAIFMT_I2S |
+			   SND_SOC_DAIFMT_NB_NF |
+			   SND_SOC_DAIFMT_CBS_CFS,
+},
+};
+
+static struct snd_rpi_simple_drvdata drvdata_hifiberrydacplusdsp = {
+	.card_name = "snd_rpi_hifiberrydacplusdsp_soundcard",
+	.dai       = snd_hifiberrydacplusdsp_soundcard_dai,
+};
+
 static struct snd_soc_dai_link snd_hifiberry_amp_dai[] = {
 	{
 		.name           = "HifiBerry AMP",
@@ -193,6 +210,8 @@ static const struct of_device_id snd_rpi
 		.data = (void *) &drvdata_adau1977 },
 	{ .compatible = "googlevoicehat,googlevoicehat-soundcard",
 		.data = (void *) &drvdata_googlevoicehat },
+	{ .compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard",
+		.data = (void *) &drvdata_hifiberrydacplusdsp },
 	{ .compatible = "hifiberry,hifiberry-amp",
 		.data = (void *) &drvdata_hifiberry_amp },
 	{ .compatible = "hifiberry,hifiberry-dac",