--- /dev/null
+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");
projects / openwrt / staging / dedeckeh.git / blobdiff