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openwrt/target/linux/bcm27xx/patches-4.19/950-0083-Driver-and-overlay-for-Allo-Katana-DAC.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx 
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

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From e37c55733587a312181a12a8f15b8f35497c828e Mon Sep 17 00:00:00 2001
From: allocom <sparky-dev@allo.com>
Date: Thu, 19 Apr 2018 12:12:26 +0530
Subject: [PATCH] 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");
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