forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
201 lines
5.5 KiB
201 lines
5.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* This file defines data structures and functions used in Machine |
|
* Driver for Intel platforms with Cirrus Logic Codecs. |
|
* |
|
* Copyright 2022 Intel Corporation. |
|
*/ |
|
#include <linux/module.h> |
|
#include <sound/sof.h> |
|
#include "../../codecs/cs35l41.h" |
|
#include "sof_cirrus_common.h" |
|
|
|
#define CS35L41_HID "CSC3541" |
|
#define CS35L41_MAX_AMPS 4 |
|
|
|
/* |
|
* Cirrus Logic CS35L41/CS35L53 |
|
*/ |
|
static const struct snd_kcontrol_new cs35l41_kcontrols[] = { |
|
SOC_DAPM_PIN_SWITCH("WL Spk"), |
|
SOC_DAPM_PIN_SWITCH("WR Spk"), |
|
SOC_DAPM_PIN_SWITCH("TL Spk"), |
|
SOC_DAPM_PIN_SWITCH("TR Spk"), |
|
}; |
|
|
|
static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = { |
|
SND_SOC_DAPM_SPK("WL Spk", NULL), |
|
SND_SOC_DAPM_SPK("WR Spk", NULL), |
|
SND_SOC_DAPM_SPK("TL Spk", NULL), |
|
SND_SOC_DAPM_SPK("TR Spk", NULL), |
|
}; |
|
|
|
static const struct snd_soc_dapm_route cs35l41_dapm_routes[] = { |
|
/* speaker */ |
|
{"WL Spk", NULL, "WL SPK"}, |
|
{"WR Spk", NULL, "WR SPK"}, |
|
{"TL Spk", NULL, "TL SPK"}, |
|
{"TR Spk", NULL, "TR SPK"}, |
|
}; |
|
|
|
static struct snd_soc_dai_link_component cs35l41_components[CS35L41_MAX_AMPS]; |
|
|
|
/* |
|
* Mapping between ACPI instance id and speaker position. |
|
*/ |
|
static struct snd_soc_codec_conf cs35l41_codec_conf[CS35L41_MAX_AMPS]; |
|
|
|
static int cs35l41_init(struct snd_soc_pcm_runtime *rtd) |
|
{ |
|
struct snd_soc_card *card = rtd->card; |
|
int ret; |
|
|
|
ret = snd_soc_dapm_new_controls(&card->dapm, cs35l41_dapm_widgets, |
|
ARRAY_SIZE(cs35l41_dapm_widgets)); |
|
if (ret) { |
|
dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret); |
|
return ret; |
|
} |
|
|
|
ret = snd_soc_add_card_controls(card, cs35l41_kcontrols, |
|
ARRAY_SIZE(cs35l41_kcontrols)); |
|
if (ret) { |
|
dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret); |
|
return ret; |
|
} |
|
|
|
ret = snd_soc_dapm_add_routes(&card->dapm, cs35l41_dapm_routes, |
|
ARRAY_SIZE(cs35l41_dapm_routes)); |
|
|
|
if (ret) |
|
dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret); |
|
|
|
return ret; |
|
} |
|
|
|
/* |
|
* Channel map: |
|
* |
|
* TL/WL: ASPRX1 on slot 0, ASPRX2 on slot 1 (default) |
|
* TR/WR: ASPRX1 on slot 1, ASPRX2 on slot 0 |
|
*/ |
|
static const struct { |
|
unsigned int rx[2]; |
|
} cs35l41_channel_map[] = { |
|
{.rx = {0, 1}}, /* WL */ |
|
{.rx = {1, 0}}, /* WR */ |
|
{.rx = {0, 1}}, /* TL */ |
|
{.rx = {1, 0}}, /* TR */ |
|
}; |
|
|
|
static int cs35l41_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
|
struct snd_soc_dai *codec_dai; |
|
int clk_freq, i, ret; |
|
|
|
clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */ |
|
|
|
if (clk_freq <= 0) { |
|
dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq); |
|
return -EINVAL; |
|
} |
|
|
|
for_each_rtd_codec_dais(rtd, i, codec_dai) { |
|
/* call dai driver's set_sysclk() callback */ |
|
ret = snd_soc_dai_set_sysclk(codec_dai, CS35L41_CLKID_SCLK, |
|
clk_freq, SND_SOC_CLOCK_IN); |
|
if (ret < 0) { |
|
dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
/* call component driver's set_sysclk() callback */ |
|
ret = snd_soc_component_set_sysclk(codec_dai->component, |
|
CS35L41_CLKID_SCLK, 0, |
|
clk_freq, SND_SOC_CLOCK_IN); |
|
if (ret < 0) { |
|
dev_err(codec_dai->dev, "fail to set component sysclk, ret %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
/* setup channel map */ |
|
ret = snd_soc_dai_set_channel_map(codec_dai, 0, NULL, |
|
ARRAY_SIZE(cs35l41_channel_map[i].rx), |
|
(unsigned int *)cs35l41_channel_map[i].rx); |
|
if (ret < 0) { |
|
dev_err(codec_dai->dev, "fail to set channel map, ret %d\n", |
|
ret); |
|
return ret; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_ops cs35l41_ops = { |
|
.hw_params = cs35l41_hw_params, |
|
}; |
|
|
|
static const char * const cs35l41_name_prefixes[] = { "WL", "WR", "TL", "TR" }; |
|
|
|
/* |
|
* Expected UIDs are integers (stored as strings). |
|
* UID Mapping is fixed: |
|
* UID 0x0 -> WL |
|
* UID 0x1 -> WR |
|
* UID 0x2 -> TL |
|
* UID 0x3 -> TR |
|
* Note: If there are less than 4 Amps, UIDs still map to WL/WR/TL/TR. Dynamic code will only create |
|
* dai links for UIDs which exist, and ignore non-existant ones. Only 2 or 4 amps are expected. |
|
* Return number of codecs found. |
|
*/ |
|
static int cs35l41_compute_codec_conf(void) |
|
{ |
|
const char * const uid_strings[] = { "0", "1", "2", "3" }; |
|
unsigned int uid, sz = 0; |
|
struct acpi_device *adev; |
|
struct device *physdev; |
|
|
|
for (uid = 0; uid < CS35L41_MAX_AMPS; uid++) { |
|
adev = acpi_dev_get_first_match_dev(CS35L41_HID, uid_strings[uid], -1); |
|
if (!adev) { |
|
pr_devel("Cannot find match for HID %s UID %u (%s)\n", CS35L41_HID, uid, |
|
cs35l41_name_prefixes[uid]); |
|
continue; |
|
} |
|
physdev = get_device(acpi_get_first_physical_node(adev)); |
|
cs35l41_components[sz].name = dev_name(physdev); |
|
cs35l41_components[sz].dai_name = CS35L41_CODEC_DAI; |
|
cs35l41_codec_conf[sz].dlc.name = dev_name(physdev); |
|
cs35l41_codec_conf[sz].name_prefix = cs35l41_name_prefixes[uid]; |
|
acpi_dev_put(adev); |
|
sz++; |
|
} |
|
|
|
if (sz != 2 && sz != 4) |
|
pr_warn("Invalid number of cs35l41 amps found: %d, expected 2 or 4\n", sz); |
|
return sz; |
|
} |
|
|
|
void cs35l41_set_dai_link(struct snd_soc_dai_link *link) |
|
{ |
|
link->num_codecs = cs35l41_compute_codec_conf(); |
|
link->codecs = cs35l41_components; |
|
link->init = cs35l41_init; |
|
link->ops = &cs35l41_ops; |
|
} |
|
EXPORT_SYMBOL_NS(cs35l41_set_dai_link, SND_SOC_INTEL_SOF_CIRRUS_COMMON); |
|
|
|
void cs35l41_set_codec_conf(struct snd_soc_card *card) |
|
{ |
|
card->codec_conf = cs35l41_codec_conf; |
|
card->num_configs = ARRAY_SIZE(cs35l41_codec_conf); |
|
} |
|
EXPORT_SYMBOL_NS(cs35l41_set_codec_conf, SND_SOC_INTEL_SOF_CIRRUS_COMMON); |
|
|
|
MODULE_DESCRIPTION("ASoC Intel SOF Cirrus Logic helpers"); |
|
MODULE_LICENSE("GPL");
|
|
|