+++ /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 / openwrt.git / blobdiff