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linux-zen-server/sound/pci/hda/cs35l41_hda.c

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Initial commit
2023-08-30 17:53:23 +02:00
// SPDX-License-Identifier: GPL-2.0
//
// CS35l41 ALSA HDA audio driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
// Author: Lucas Tanure <tanureal@opensource.cirrus.com>
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <sound/hda_codec.h>
#include <sound/soc.h>
#include <linux/pm_runtime.h>
#include "hda_local.h"
#include "hda_auto_parser.h"
#include "hda_jack.h"
#include "hda_generic.h"
#include "hda_component.h"
#include "cs35l41_hda.h"
#include "hda_cs_dsp_ctl.h"
#define CS35L41_FIRMWARE_ROOT "cirrus/"
#define CS35L41_PART "cs35l41"
#define HALO_STATE_DSP_CTL_NAME "HALO_STATE"
#define HALO_STATE_DSP_CTL_TYPE 5
#define HALO_STATE_DSP_CTL_ALG 262308
#define CAL_R_DSP_CTL_NAME "CAL_R"
#define CAL_STATUS_DSP_CTL_NAME "CAL_STATUS"
#define CAL_CHECKSUM_DSP_CTL_NAME "CAL_CHECKSUM"
#define CAL_AMBIENT_DSP_CTL_NAME "CAL_AMBIENT"
#define CAL_DSP_CTL_TYPE 5
#define CAL_DSP_CTL_ALG 205
static bool firmware_autostart = 1;
module_param(firmware_autostart, bool, 0444);
MODULE_PARM_DESC(firmware_autostart, "Allow automatic firmware download on boot"
"(0=Disable, 1=Enable) (default=1); ");
static const struct reg_sequence cs35l41_hda_config[] = {
{ CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1
{ CS35L41_DSP_CLK_CTRL, 0x00000003 }, // DSP CLK EN
{ CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, // GLOBAL_FS = 48 kHz
{ CS35L41_SP_ENABLES, 0x00010000 }, // ASP_RX1_EN = 1
{ CS35L41_SP_RATE_CTRL, 0x00000021 }, // ASP_BCLK_FREQ = 3.072 MHz
{ CS35L41_SP_FORMAT, 0x20200200 }, // 32 bits RX/TX slots, I2S, clk consumer
{ CS35L41_SP_HIZ_CTRL, 0x00000002 }, // Hi-Z unused
{ CS35L41_SP_TX_WL, 0x00000018 }, // 24 cycles/slot
{ CS35L41_SP_RX_WL, 0x00000018 }, // 24 cycles/slot
{ CS35L41_DAC_PCM1_SRC, 0x00000008 }, // DACPCM1_SRC = ASPRX1
{ CS35L41_ASP_TX1_SRC, 0x00000018 }, // ASPTX1 SRC = VMON
{ CS35L41_ASP_TX2_SRC, 0x00000019 }, // ASPTX2 SRC = IMON
{ CS35L41_ASP_TX3_SRC, 0x00000032 }, // ASPTX3 SRC = ERRVOL
{ CS35L41_ASP_TX4_SRC, 0x00000033 }, // ASPTX4 SRC = CLASSH_TGT
{ CS35L41_DSP1_RX1_SRC, 0x00000008 }, // DSP1RX1 SRC = ASPRX1
{ CS35L41_DSP1_RX2_SRC, 0x00000009 }, // DSP1RX2 SRC = ASPRX2
{ CS35L41_DSP1_RX3_SRC, 0x00000018 }, // DSP1RX3 SRC = VMON
{ CS35L41_DSP1_RX4_SRC, 0x00000019 }, // DSP1RX4 SRC = IMON
{ CS35L41_DSP1_RX5_SRC, 0x00000020 }, // DSP1RX5 SRC = ERRVOL
{ CS35L41_AMP_DIG_VOL_CTRL, 0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB
{ CS35L41_AMP_GAIN_CTRL, 0x00000084 }, // AMP_GAIN_PCM 4.5 dB
};
static const struct reg_sequence cs35l41_hda_config_dsp[] = {
{ CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1
{ CS35L41_DSP_CLK_CTRL, 0x00000003 }, // DSP CLK EN
{ CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, // GLOBAL_FS = 48 kHz
{ CS35L41_SP_ENABLES, 0x00010001 }, // ASP_RX1_EN = 1, ASP_TX1_EN = 1
{ CS35L41_SP_RATE_CTRL, 0x00000021 }, // ASP_BCLK_FREQ = 3.072 MHz
{ CS35L41_SP_FORMAT, 0x20200200 }, // 32 bits RX/TX slots, I2S, clk consumer
{ CS35L41_SP_HIZ_CTRL, 0x00000003 }, // Hi-Z unused/disabled
{ CS35L41_SP_TX_WL, 0x00000018 }, // 24 cycles/slot
{ CS35L41_SP_RX_WL, 0x00000018 }, // 24 cycles/slot
{ CS35L41_DAC_PCM1_SRC, 0x00000032 }, // DACPCM1_SRC = ERR_VOL
{ CS35L41_ASP_TX1_SRC, 0x00000018 }, // ASPTX1 SRC = VMON
{ CS35L41_ASP_TX2_SRC, 0x00000019 }, // ASPTX2 SRC = IMON
{ CS35L41_ASP_TX3_SRC, 0x00000028 }, // ASPTX3 SRC = VPMON
{ CS35L41_ASP_TX4_SRC, 0x00000029 }, // ASPTX4 SRC = VBSTMON
{ CS35L41_DSP1_RX1_SRC, 0x00000008 }, // DSP1RX1 SRC = ASPRX1
{ CS35L41_DSP1_RX2_SRC, 0x00000008 }, // DSP1RX2 SRC = ASPRX1
{ CS35L41_DSP1_RX3_SRC, 0x00000018 }, // DSP1RX3 SRC = VMON
{ CS35L41_DSP1_RX4_SRC, 0x00000019 }, // DSP1RX4 SRC = IMON
{ CS35L41_DSP1_RX5_SRC, 0x00000029 }, // DSP1RX5 SRC = VBSTMON
{ CS35L41_AMP_DIG_VOL_CTRL, 0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB
{ CS35L41_AMP_GAIN_CTRL, 0x00000233 }, // AMP_GAIN_PCM = 17.5dB AMP_GAIN_PDM = 19.5dB
};
static const struct reg_sequence cs35l41_hda_mute[] = {
{ CS35L41_AMP_GAIN_CTRL, 0x00000000 }, // AMP_GAIN_PCM 0.5 dB
{ CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM Mute
};
static void cs35l41_add_controls(struct cs35l41_hda *cs35l41)
{
struct hda_cs_dsp_ctl_info info;
info.device_name = cs35l41->amp_name;
info.fw_type = cs35l41->firmware_type;
info.card = cs35l41->codec->card;
hda_cs_dsp_add_controls(&cs35l41->cs_dsp, &info);
}
static const struct cs_dsp_client_ops client_ops = {
.control_remove = hda_cs_dsp_control_remove,
};
static int cs35l41_request_firmware_file(struct cs35l41_hda *cs35l41,
const struct firmware **firmware, char **filename,
const char *dir, const char *ssid, const char *amp_name,
int spkid, const char *filetype)
{
const char * const dsp_name = cs35l41->cs_dsp.name;
char *s, c;
int ret = 0;
if (spkid > -1 && ssid && amp_name)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-spkid%d-%s.%s", dir, CS35L41_PART,
dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type],
ssid, spkid, amp_name, filetype);
else if (spkid > -1 && ssid)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-spkid%d.%s", dir, CS35L41_PART,
dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type],
ssid, spkid, filetype);
else if (ssid && amp_name)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, CS35L41_PART,
dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type],
ssid, amp_name, filetype);
else if (ssid)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, CS35L41_PART,
dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type],
ssid, filetype);
else
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, CS35L41_PART,
dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type],
filetype);
if (*filename == NULL)
return -ENOMEM;
/*
* Make sure that filename is lower-case and any non alpha-numeric
* characters except full stop and '/' are replaced with hyphens.
*/
s = *filename;
while (*s) {
c = *s;
if (isalnum(c))
*s = tolower(c);
else if (c != '.' && c != '/')
*s = '-';
s++;
}
ret = firmware_request_nowarn(firmware, *filename, cs35l41->dev);
if (ret != 0) {
dev_dbg(cs35l41->dev, "Failed to request '%s'\n", *filename);
kfree(*filename);
*filename = NULL;
}
return ret;
}
static int cs35l41_request_firmware_files_spkid(struct cs35l41_hda *cs35l41,
const struct firmware **wmfw_firmware,
char **wmfw_filename,
const struct firmware **coeff_firmware,
char **coeff_filename)
{
int ret;
/* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, cs35l41->amp_name,
cs35l41->speaker_id, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */
return cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, cs35l41->amp_name,
cs35l41->speaker_id, "bin");
}
/* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, cs35l41->acpi_subsystem_id,
cs35l41->amp_name, -1, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */
return cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, cs35l41->amp_name,
cs35l41->speaker_id, "bin");
}
/* try cirrus/part-dspN-fwtype-sub<-spkidN>.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, cs35l41->acpi_subsystem_id,
NULL, cs35l41->speaker_id, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id,
cs35l41->amp_name, cs35l41->speaker_id, "bin");
if (ret)
/* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */
return cs35l41_request_firmware_file(cs35l41, coeff_firmware,
coeff_filename, CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, NULL,
cs35l41->speaker_id, "bin");
}
/* try cirrus/part-dspN-fwtype-sub.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, cs35l41->acpi_subsystem_id,
NULL, -1, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, cs35l41->amp_name,
cs35l41->speaker_id, "bin");
if (ret)
/* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */
return cs35l41_request_firmware_file(cs35l41, coeff_firmware,
coeff_filename, CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, NULL,
cs35l41->speaker_id, "bin");
}
return ret;
}
static int cs35l41_request_firmware_files(struct cs35l41_hda *cs35l41,
const struct firmware **wmfw_firmware,
char **wmfw_filename,
const struct firmware **coeff_firmware,
char **coeff_filename)
{
int ret;
if (cs35l41->speaker_id > -1) {
ret = cs35l41_request_firmware_files_spkid(cs35l41, wmfw_firmware, wmfw_filename,
coeff_firmware, coeff_filename);
goto out;
}
/* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, cs35l41->acpi_subsystem_id,
cs35l41->amp_name, -1, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, cs35l41->amp_name,
-1, "bin");
goto out;
}
/* try cirrus/part-dspN-fwtype-sub.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, cs35l41->acpi_subsystem_id,
NULL, -1, "wmfw");
if (!ret) {
/* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id,
cs35l41->amp_name, -1, "bin");
if (ret)
/* try cirrus/part-dspN-fwtype-sub.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT,
cs35l41->acpi_subsystem_id, NULL, -1,
"bin");
}
out:
if (!ret)
return 0;
/* Handle fallback */
dev_warn(cs35l41->dev, "Falling back to default firmware.\n");
release_firmware(*wmfw_firmware);
kfree(*wmfw_filename);
/* fallback try cirrus/part-dspN-fwtype.wmfw */
ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename,
CS35L41_FIRMWARE_ROOT, NULL, NULL, -1, "wmfw");
if (!ret)
/* fallback try cirrus/part-dspN-fwtype.bin */
ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename,
CS35L41_FIRMWARE_ROOT, NULL, NULL, -1, "bin");
if (ret) {
release_firmware(*wmfw_firmware);
kfree(*wmfw_filename);
dev_warn(cs35l41->dev, "Unable to find firmware and tuning\n");
}
return ret;
}
#if IS_ENABLED(CONFIG_EFI)
static int cs35l41_apply_calibration(struct cs35l41_hda *cs35l41, unsigned int ambient,
unsigned int r0, unsigned int status, unsigned int checksum)
{
int ret;
ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_AMBIENT_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
CAL_DSP_CTL_ALG, &ambient, 4);
if (ret) {
dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_AMBIENT_DSP_CTL_NAME,
ret);
return ret;
}
ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_R_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
CAL_DSP_CTL_ALG, &r0, 4);
if (ret) {
dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_R_DSP_CTL_NAME, ret);
return ret;
}
ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_STATUS_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
CAL_DSP_CTL_ALG, &status, 4);
if (ret) {
dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_STATUS_DSP_CTL_NAME,
ret);
return ret;
}
ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_CHECKSUM_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
CAL_DSP_CTL_ALG, &checksum, 4);
if (ret) {
dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_CHECKSUM_DSP_CTL_NAME,
ret);
return ret;
}
return 0;
}
static int cs35l41_save_calibration(struct cs35l41_hda *cs35l41)
{
static efi_guid_t efi_guid = EFI_GUID(0x02f9af02, 0x7734, 0x4233, 0xb4, 0x3d, 0x93, 0xfe,
0x5a, 0xa3, 0x5d, 0xb3);
static efi_char16_t efi_name[] = L"CirrusSmartAmpCalibrationData";
const struct cs35l41_amp_efi_data *efi_data;
const struct cs35l41_amp_cal_data *cl;
unsigned long data_size = 0;
efi_status_t status;
int ret = 0;
u8 *data = NULL;
u32 attr;
/* Get real size of UEFI variable */
status = efi.get_variable(efi_name, &efi_guid, &attr, &data_size, data);
if (status == EFI_BUFFER_TOO_SMALL) {
ret = -ENODEV;
/* Allocate data buffer of data_size bytes */
data = vmalloc(data_size);
if (!data)
return -ENOMEM;
/* Get variable contents into buffer */
status = efi.get_variable(efi_name, &efi_guid, &attr, &data_size, data);
if (status == EFI_SUCCESS) {
efi_data = (struct cs35l41_amp_efi_data *)data;
dev_dbg(cs35l41->dev, "Calibration: Size=%d, Amp Count=%d\n",
efi_data->size, efi_data->count);
if (efi_data->count > cs35l41->index) {
cl = &efi_data->data[cs35l41->index];
dev_dbg(cs35l41->dev,
"Calibration: Ambient=%02x, Status=%02x, R0=%d\n",
cl->calAmbient, cl->calStatus, cl->calR);
/* Calibration can only be applied whilst the DSP is not running */
ret = cs35l41_apply_calibration(cs35l41,
cpu_to_be32(cl->calAmbient),
cpu_to_be32(cl->calR),
cpu_to_be32(cl->calStatus),
cpu_to_be32(cl->calR + 1));
}
}
vfree(data);
}
return ret;
}
#else
static int cs35l41_save_calibration(struct cs35l41_hda *cs35l41)
{
dev_warn(cs35l41->dev, "Calibration not supported without EFI support.\n");
return 0;
}
#endif
static int cs35l41_init_dsp(struct cs35l41_hda *cs35l41)
{
const struct firmware *coeff_firmware = NULL;
const struct firmware *wmfw_firmware = NULL;
struct cs_dsp *dsp = &cs35l41->cs_dsp;
char *coeff_filename = NULL;
char *wmfw_filename = NULL;
int ret;
if (!cs35l41->halo_initialized) {
cs35l41_configure_cs_dsp(cs35l41->dev, cs35l41->regmap, dsp);
dsp->client_ops = &client_ops;
ret = cs_dsp_halo_init(&cs35l41->cs_dsp);
if (ret)
return ret;
cs35l41->halo_initialized = true;
}
ret = cs35l41_request_firmware_files(cs35l41, &wmfw_firmware, &wmfw_filename,
&coeff_firmware, &coeff_filename);
if (ret < 0)
return ret;
dev_dbg(cs35l41->dev, "Loading WMFW Firmware: %s\n", wmfw_filename);
if (coeff_filename)
dev_dbg(cs35l41->dev, "Loading Coefficient File: %s\n", coeff_filename);
else
dev_warn(cs35l41->dev, "No Coefficient File available.\n");
ret = cs_dsp_power_up(dsp, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename,
hda_cs_dsp_fw_ids[cs35l41->firmware_type]);
if (ret)
goto err_release;
cs35l41_add_controls(cs35l41);
ret = cs35l41_save_calibration(cs35l41);
err_release:
release_firmware(wmfw_firmware);
release_firmware(coeff_firmware);
kfree(wmfw_filename);
kfree(coeff_filename);
return ret;
}
static void cs35l41_shutdown_dsp(struct cs35l41_hda *cs35l41)
{
struct cs_dsp *dsp = &cs35l41->cs_dsp;
cs_dsp_stop(dsp);
cs_dsp_power_down(dsp);
cs35l41->firmware_running = false;
dev_dbg(cs35l41->dev, "Unloaded Firmware\n");
}
static void cs35l41_remove_dsp(struct cs35l41_hda *cs35l41)
{
struct cs_dsp *dsp = &cs35l41->cs_dsp;
cancel_work_sync(&cs35l41->fw_load_work);
mutex_lock(&cs35l41->fw_mutex);
cs35l41_shutdown_dsp(cs35l41);
cs_dsp_remove(dsp);
cs35l41->halo_initialized = false;
mutex_unlock(&cs35l41->fw_mutex);
}
/* Protection release cycle to get the speaker out of Safe-Mode */
static void cs35l41_error_release(struct device *dev, struct regmap *regmap, unsigned int mask)
{
regmap_write(regmap, CS35L41_PROTECT_REL_ERR_IGN, 0);
regmap_set_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask);
regmap_clear_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask);
}
/* Clear all errors to release safe mode. Global Enable must be cleared first. */
static void cs35l41_irq_release(struct cs35l41_hda *cs35l41)
{
cs35l41_error_release(cs35l41->dev, cs35l41->regmap, cs35l41->irq_errors);
cs35l41->irq_errors = 0;
}
static void cs35l41_hda_playback_hook(struct device *dev, int action)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct regmap *reg = cs35l41->regmap;
int ret = 0;
switch (action) {
case HDA_GEN_PCM_ACT_OPEN:
pm_runtime_get_sync(dev);
mutex_lock(&cs35l41->fw_mutex);
cs35l41->playback_started = true;
if (cs35l41->firmware_running) {
regmap_multi_reg_write(reg, cs35l41_hda_config_dsp,
ARRAY_SIZE(cs35l41_hda_config_dsp));
regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
1 << CS35L41_VMON_EN_SHIFT | 1 << CS35L41_IMON_EN_SHIFT);
cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap,
CSPL_MBOX_CMD_RESUME);
} else {
regmap_multi_reg_write(reg, cs35l41_hda_config,
ARRAY_SIZE(cs35l41_hda_config));
}
ret = regmap_update_bits(reg, CS35L41_PWR_CTRL2,
CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT);
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00008001);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_PREPARE:
mutex_lock(&cs35l41->fw_mutex);
ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 1);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_CLEANUP:
mutex_lock(&cs35l41->fw_mutex);
regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute));
ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 0);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_CLOSE:
mutex_lock(&cs35l41->fw_mutex);
ret = regmap_update_bits(reg, CS35L41_PWR_CTRL2,
CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001);
if (cs35l41->firmware_running) {
cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap,
CSPL_MBOX_CMD_PAUSE);
regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT);
}
cs35l41_irq_release(cs35l41);
cs35l41->playback_started = false;
mutex_unlock(&cs35l41->fw_mutex);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
break;
default:
dev_warn(cs35l41->dev, "Playback action not supported: %d\n", action);
break;
}
if (ret)
dev_err(cs35l41->dev, "Regmap access fail: %d\n", ret);
}
static int cs35l41_hda_channel_map(struct device *dev, unsigned int tx_num, unsigned int *tx_slot,
unsigned int rx_num, unsigned int *rx_slot)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
static const char * const channel_name[] = { "L", "R" };
if (!cs35l41->amp_name) {
if (*rx_slot >= ARRAY_SIZE(channel_name))
return -EINVAL;
cs35l41->amp_name = devm_kasprintf(cs35l41->dev, GFP_KERNEL, "%s%d",
channel_name[*rx_slot], cs35l41->channel_index);
if (!cs35l41->amp_name)
return -ENOMEM;
}
return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_num, tx_slot, rx_num,
rx_slot);
}
static void cs35l41_ready_for_reset(struct cs35l41_hda *cs35l41)
{
mutex_lock(&cs35l41->fw_mutex);
if (cs35l41->firmware_running) {
regcache_cache_only(cs35l41->regmap, false);
cs35l41_exit_hibernate(cs35l41->dev, cs35l41->regmap);
cs35l41_shutdown_dsp(cs35l41);
cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type);
regcache_cache_only(cs35l41->regmap, true);
regcache_mark_dirty(cs35l41->regmap);
}
mutex_unlock(&cs35l41->fw_mutex);
}
static int cs35l41_system_suspend(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
int ret;
dev_dbg(cs35l41->dev, "System Suspend\n");
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) {
dev_err_once(cs35l41->dev, "System Suspend not supported\n");
return 0; /* don't block the whole system suspend */
}
ret = pm_runtime_force_suspend(dev);
if (ret)
return ret;
/* Shutdown DSP before system suspend */
cs35l41_ready_for_reset(cs35l41);
/*
* Reset GPIO may be shared, so cannot reset here.
* However beyond this point, amps may be powered down.
*/
return 0;
}
static int cs35l41_system_resume(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
int ret;
dev_dbg(cs35l41->dev, "System Resume\n");
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) {
dev_err_once(cs35l41->dev, "System Resume not supported\n");
return 0; /* don't block the whole system resume */
}
if (cs35l41->reset_gpio) {
usleep_range(2000, 2100);
gpiod_set_value_cansleep(cs35l41->reset_gpio, 1);
}
usleep_range(2000, 2100);
ret = pm_runtime_force_resume(dev);
mutex_lock(&cs35l41->fw_mutex);
if (!ret && cs35l41->request_fw_load && !cs35l41->fw_request_ongoing) {
cs35l41->fw_request_ongoing = true;
schedule_work(&cs35l41->fw_load_work);
}
mutex_unlock(&cs35l41->fw_mutex);
return ret;
}
static int cs35l41_runtime_idle(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH)
return -EBUSY; /* suspend not supported yet on this model */
return 0;
}
static int cs35l41_runtime_suspend(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
int ret = 0;
dev_dbg(cs35l41->dev, "Runtime Suspend\n");
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) {
dev_dbg(cs35l41->dev, "Runtime Suspend not supported\n");
return 0;
}
mutex_lock(&cs35l41->fw_mutex);
if (cs35l41->playback_started) {
regmap_multi_reg_write(cs35l41->regmap, cs35l41_hda_mute,
ARRAY_SIZE(cs35l41_hda_mute));
cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0);
regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
regmap_write(cs35l41->regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT);
cs35l41->playback_started = false;
}
if (cs35l41->firmware_running) {
ret = cs35l41_enter_hibernate(cs35l41->dev, cs35l41->regmap,
cs35l41->hw_cfg.bst_type);
if (ret)
goto err;
} else {
cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type);
}
regcache_cache_only(cs35l41->regmap, true);
regcache_mark_dirty(cs35l41->regmap);
err:
mutex_unlock(&cs35l41->fw_mutex);
return ret;
}
static int cs35l41_runtime_resume(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
int ret = 0;
dev_dbg(cs35l41->dev, "Runtime Resume\n");
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) {
dev_dbg(cs35l41->dev, "Runtime Resume not supported\n");
return 0;
}
mutex_lock(&cs35l41->fw_mutex);
regcache_cache_only(cs35l41->regmap, false);
if (cs35l41->firmware_running) {
ret = cs35l41_exit_hibernate(cs35l41->dev, cs35l41->regmap);
if (ret) {
dev_warn(cs35l41->dev, "Unable to exit Hibernate.");
goto err;
}
}
/* Test key needs to be unlocked to allow the OTP settings to re-apply */
cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap);
ret = regcache_sync(cs35l41->regmap);
cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap);
if (ret) {
dev_err(cs35l41->dev, "Failed to restore register cache: %d\n", ret);
goto err;
}
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, &cs35l41->hw_cfg);
err:
mutex_unlock(&cs35l41->fw_mutex);
return ret;
}
static int cs35l41_smart_amp(struct cs35l41_hda *cs35l41)
{
int halo_sts;
int ret;
ret = cs35l41_init_dsp(cs35l41);
if (ret) {
dev_warn(cs35l41->dev, "Cannot Initialize Firmware. Error: %d\n", ret);
goto clean_dsp;
}
ret = cs35l41_write_fs_errata(cs35l41->dev, cs35l41->regmap);
if (ret) {
dev_err(cs35l41->dev, "Cannot Write FS Errata: %d\n", ret);
goto clean_dsp;
}
ret = cs_dsp_run(&cs35l41->cs_dsp);
if (ret) {
dev_err(cs35l41->dev, "Fail to start dsp: %d\n", ret);
goto clean_dsp;
}
ret = read_poll_timeout(hda_cs_dsp_read_ctl, ret,
be32_to_cpu(halo_sts) == HALO_STATE_CODE_RUN,
1000, 15000, false, &cs35l41->cs_dsp, HALO_STATE_DSP_CTL_NAME,
HALO_STATE_DSP_CTL_TYPE, HALO_STATE_DSP_CTL_ALG,
&halo_sts, sizeof(halo_sts));
if (ret) {
dev_err(cs35l41->dev, "Timeout waiting for HALO Core to start. State: %d\n",
halo_sts);
goto clean_dsp;
}
cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap, CSPL_MBOX_CMD_PAUSE);
cs35l41->firmware_running = true;
return 0;
clean_dsp:
cs35l41_shutdown_dsp(cs35l41);
return ret;
}
static void cs35l41_load_firmware(struct cs35l41_hda *cs35l41, bool load)
{
if (cs35l41->firmware_running && !load) {
dev_dbg(cs35l41->dev, "Unloading Firmware\n");
cs35l41_shutdown_dsp(cs35l41);
} else if (!cs35l41->firmware_running && load) {
dev_dbg(cs35l41->dev, "Loading Firmware\n");
cs35l41_smart_amp(cs35l41);
} else {
dev_dbg(cs35l41->dev, "Unable to Load firmware.\n");
}
}
static int cs35l41_fw_load_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = cs35l41->request_fw_load;
return 0;
}
static void cs35l41_fw_load_work(struct work_struct *work)
{
struct cs35l41_hda *cs35l41 = container_of(work, struct cs35l41_hda, fw_load_work);
pm_runtime_get_sync(cs35l41->dev);
mutex_lock(&cs35l41->fw_mutex);
/* Recheck if playback is ongoing, mutex will block playback during firmware loading */
if (cs35l41->playback_started)
dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback. Retrying...\n");
else
cs35l41_load_firmware(cs35l41, cs35l41->request_fw_load);
cs35l41->fw_request_ongoing = false;
mutex_unlock(&cs35l41->fw_mutex);
pm_runtime_mark_last_busy(cs35l41->dev);
pm_runtime_put_autosuspend(cs35l41->dev);
}
static int cs35l41_fw_load_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol);
unsigned int ret = 0;
mutex_lock(&cs35l41->fw_mutex);
if (cs35l41->request_fw_load == ucontrol->value.integer.value[0])
goto err;
if (cs35l41->fw_request_ongoing) {
dev_dbg(cs35l41->dev, "Existing request not complete\n");
ret = -EBUSY;
goto err;
}
/* Check if playback is ongoing when initial request is made */
if (cs35l41->playback_started) {
dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback\n");
ret = -EBUSY;
goto err;
}
cs35l41->fw_request_ongoing = true;
cs35l41->request_fw_load = ucontrol->value.integer.value[0];
schedule_work(&cs35l41->fw_load_work);
err:
mutex_unlock(&cs35l41->fw_mutex);
return ret;
}
static int cs35l41_fw_type_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol);
ucontrol->value.enumerated.item[0] = cs35l41->firmware_type;
return 0;
}
static int cs35l41_fw_type_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol);
if (ucontrol->value.enumerated.item[0] < HDA_CS_DSP_NUM_FW) {
cs35l41->firmware_type = ucontrol->value.enumerated.item[0];
return 0;
}
return -EINVAL;
}
static int cs35l41_fw_type_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(hda_cs_dsp_fw_ids), hda_cs_dsp_fw_ids);
}
static int cs35l41_create_controls(struct cs35l41_hda *cs35l41)
{
char fw_type_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char fw_load_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
struct snd_kcontrol_new fw_type_ctl = {
.name = fw_type_ctl_name,
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.info = cs35l41_fw_type_ctl_info,
.get = cs35l41_fw_type_ctl_get,
.put = cs35l41_fw_type_ctl_put,
};
struct snd_kcontrol_new fw_load_ctl = {
.name = fw_load_ctl_name,
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.info = snd_ctl_boolean_mono_info,
.get = cs35l41_fw_load_ctl_get,
.put = cs35l41_fw_load_ctl_put,
};
int ret;
scnprintf(fw_type_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Type",
cs35l41->amp_name);
scnprintf(fw_load_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Load",
cs35l41->amp_name);
ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_type_ctl, cs35l41));
if (ret) {
dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_type_ctl.name, ret);
return ret;
}
dev_dbg(cs35l41->dev, "Added Control %s\n", fw_type_ctl.name);
ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_load_ctl, cs35l41));
if (ret) {
dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_load_ctl.name, ret);
return ret;
}
dev_dbg(cs35l41->dev, "Added Control %s\n", fw_load_ctl.name);
return 0;
}
static int cs35l41_hda_bind(struct device *dev, struct device *master, void *master_data)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct hda_component *comps = master_data;
int ret = 0;
if (!comps || cs35l41->index < 0 || cs35l41->index >= HDA_MAX_COMPONENTS)
return -EINVAL;
comps = &comps[cs35l41->index];
if (comps->dev)
return -EBUSY;
pm_runtime_get_sync(dev);
mutex_lock(&cs35l41->fw_mutex);
comps->dev = dev;
if (!cs35l41->acpi_subsystem_id)
cs35l41->acpi_subsystem_id = kasprintf(GFP_KERNEL, "%.8x",
comps->codec->core.subsystem_id);
cs35l41->codec = comps->codec;
strscpy(comps->name, dev_name(dev), sizeof(comps->name));
cs35l41->firmware_type = HDA_CS_DSP_FW_SPK_PROT;
if (firmware_autostart) {
dev_dbg(cs35l41->dev, "Firmware Autostart.\n");
cs35l41->request_fw_load = true;
if (cs35l41_smart_amp(cs35l41) < 0)
dev_warn(cs35l41->dev, "Cannot Run Firmware, reverting to dsp bypass...\n");
} else {
dev_dbg(cs35l41->dev, "Firmware Autostart is disabled.\n");
}
ret = cs35l41_create_controls(cs35l41);
comps->playback_hook = cs35l41_hda_playback_hook;
mutex_unlock(&cs35l41->fw_mutex);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return ret;
}
static void cs35l41_hda_unbind(struct device *dev, struct device *master, void *master_data)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct hda_component *comps = master_data;
if (comps[cs35l41->index].dev == dev)
memset(&comps[cs35l41->index], 0, sizeof(*comps));
}
static const struct component_ops cs35l41_hda_comp_ops = {
.bind = cs35l41_hda_bind,
.unbind = cs35l41_hda_unbind,
};
static irqreturn_t cs35l41_bst_short_err(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "LBST Error\n");
set_bit(CS35L41_BST_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static irqreturn_t cs35l41_bst_dcm_uvp_err(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n");
set_bit(CS35L41_BST_UVP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static irqreturn_t cs35l41_bst_ovp_err(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n");
set_bit(CS35L41_BST_OVP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static irqreturn_t cs35l41_temp_err(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "Over temperature error\n");
set_bit(CS35L41_TEMP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static irqreturn_t cs35l41_temp_warn(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "Over temperature warning\n");
set_bit(CS35L41_TEMP_WARN_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static irqreturn_t cs35l41_amp_short(int irq, void *data)
{
struct cs35l41_hda *cs35l41 = data;
dev_crit_ratelimited(cs35l41->dev, "Amp short error\n");
set_bit(CS35L41_AMP_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors);
return IRQ_HANDLED;
}
static const struct cs35l41_irq cs35l41_irqs[] = {
CS35L41_IRQ(BST_OVP_ERR, "Boost Overvoltage Error", cs35l41_bst_ovp_err),
CS35L41_IRQ(BST_DCM_UVP_ERR, "Boost Undervoltage Error", cs35l41_bst_dcm_uvp_err),
CS35L41_IRQ(BST_SHORT_ERR, "Boost Inductor Short Error", cs35l41_bst_short_err),
CS35L41_IRQ(TEMP_WARN, "Temperature Warning", cs35l41_temp_warn),
CS35L41_IRQ(TEMP_ERR, "Temperature Error", cs35l41_temp_err),
CS35L41_IRQ(AMP_SHORT_ERR, "Amp Short", cs35l41_amp_short),
};
static const struct regmap_irq cs35l41_reg_irqs[] = {
CS35L41_REG_IRQ(IRQ1_STATUS1, BST_OVP_ERR),
CS35L41_REG_IRQ(IRQ1_STATUS1, BST_DCM_UVP_ERR),
CS35L41_REG_IRQ(IRQ1_STATUS1, BST_SHORT_ERR),
CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_WARN),
CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_ERR),
CS35L41_REG_IRQ(IRQ1_STATUS1, AMP_SHORT_ERR),
};
static struct regmap_irq_chip cs35l41_regmap_irq_chip = {
.name = "cs35l41 IRQ1 Controller",
.status_base = CS35L41_IRQ1_STATUS1,
.mask_base = CS35L41_IRQ1_MASK1,
.ack_base = CS35L41_IRQ1_STATUS1,
.num_regs = 4,
.irqs = cs35l41_reg_irqs,
.num_irqs = ARRAY_SIZE(cs35l41_reg_irqs),
.runtime_pm = true,
};
static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
{
struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
bool using_irq = false;
int irq, irq_pol;
int ret;
int i;
if (!cs35l41->hw_cfg.valid)
return -EINVAL;
ret = cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, hw_cfg);
if (ret)
return ret;
if (hw_cfg->gpio1.valid) {
switch (hw_cfg->gpio1.func) {
case CS35L41_NOT_USED:
break;
case CS35l41_VSPK_SWITCH:
hw_cfg->gpio1.func = CS35L41_GPIO1_GPIO;
hw_cfg->gpio1.out_en = true;
break;
case CS35l41_SYNC:
hw_cfg->gpio1.func = CS35L41_GPIO1_MDSYNC;
break;
default:
dev_err(cs35l41->dev, "Invalid function %d for GPIO1\n",
hw_cfg->gpio1.func);
return -EINVAL;
}
}
if (hw_cfg->gpio2.valid) {
switch (hw_cfg->gpio2.func) {
case CS35L41_NOT_USED:
break;
case CS35L41_INTERRUPT:
using_irq = true;
hw_cfg->gpio2.func = CS35L41_GPIO2_INT_OPEN_DRAIN;
break;
default:
dev_err(cs35l41->dev, "Invalid GPIO2 function %d\n", hw_cfg->gpio2.func);
return -EINVAL;
}
}
irq_pol = cs35l41_gpio_config(cs35l41->regmap, hw_cfg);
if (cs35l41->irq && using_irq) {
ret = devm_regmap_add_irq_chip(cs35l41->dev, cs35l41->regmap, cs35l41->irq,
IRQF_ONESHOT | IRQF_SHARED | irq_pol,
0, &cs35l41_regmap_irq_chip, &cs35l41->irq_data);
if (ret)
return ret;
for (i = 0; i < ARRAY_SIZE(cs35l41_irqs); i++) {
irq = regmap_irq_get_virq(cs35l41->irq_data, cs35l41_irqs[i].irq);
if (irq < 0)
return irq;
ret = devm_request_threaded_irq(cs35l41->dev, irq, NULL,
cs35l41_irqs[i].handler,
IRQF_ONESHOT | IRQF_SHARED | irq_pol,
cs35l41_irqs[i].name, cs35l41);
if (ret)
return ret;
}
}
return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos);
}
static int cs35l41_get_speaker_id(struct device *dev, int amp_index,
int num_amps, int fixed_gpio_id)
{
struct gpio_desc *speaker_id_desc;
int speaker_id = -ENODEV;
if (fixed_gpio_id >= 0) {
dev_dbg(dev, "Found Fixed Speaker ID GPIO (index = %d)\n", fixed_gpio_id);
speaker_id_desc = gpiod_get_index(dev, NULL, fixed_gpio_id, GPIOD_IN);
if (IS_ERR(speaker_id_desc)) {
speaker_id = PTR_ERR(speaker_id_desc);
return speaker_id;
}
speaker_id = gpiod_get_value_cansleep(speaker_id_desc);
gpiod_put(speaker_id_desc);
dev_dbg(dev, "Speaker ID = %d\n", speaker_id);
} else {
int base_index;
int gpios_per_amp;
int count;
int tmp;
int i;
count = gpiod_count(dev, "spk-id");
if (count > 0) {
speaker_id = 0;
gpios_per_amp = count / num_amps;
base_index = gpios_per_amp * amp_index;
if (count % num_amps)
return -EINVAL;
dev_dbg(dev, "Found %d Speaker ID GPIOs per Amp\n", gpios_per_amp);
for (i = 0; i < gpios_per_amp; i++) {
speaker_id_desc = gpiod_get_index(dev, "spk-id", i + base_index,
GPIOD_IN);
if (IS_ERR(speaker_id_desc)) {
speaker_id = PTR_ERR(speaker_id_desc);
break;
}
tmp = gpiod_get_value_cansleep(speaker_id_desc);
gpiod_put(speaker_id_desc);
if (tmp < 0) {
speaker_id = tmp;
break;
}
speaker_id |= tmp << i;
}
dev_dbg(dev, "Speaker ID = %d\n", speaker_id);
}
}
return speaker_id;
}
/*
* Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
* And devices created by serial-multi-instantiate don't have their device struct
* pointing to the correct fwnode, so acpi_dev must be used here.
* And devm functions expect that the device requesting the resource has the correct
* fwnode.
*/
static int cs35l41_no_acpi_dsd(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
const char *hid)
{
struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
/* check I2C address to assign the index */
cs35l41->index = id == 0x40 ? 0 : 1;
cs35l41->channel_index = 0;
cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
hw_cfg->spk_pos = cs35l41->index;
hw_cfg->gpio2.func = CS35L41_INTERRUPT;
hw_cfg->gpio2.valid = true;
hw_cfg->valid = true;
if (strncmp(hid, "CLSA0100", 8) == 0) {
hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
} else if (strncmp(hid, "CLSA0101", 8) == 0) {
hw_cfg->bst_type = CS35L41_EXT_BOOST;
hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
hw_cfg->gpio1.valid = true;
} else {
/*
* Note: CLSA010(0/1) are special cases which use a slightly different design.
* All other HIDs e.g. CSC3551 require valid ACPI _DSD properties to be supported.
*/
dev_err(cs35l41->dev, "Error: ACPI _DSD Properties are missing for HID %s.\n", hid);
hw_cfg->valid = false;
hw_cfg->gpio1.valid = false;
hw_cfg->gpio2.valid = false;
return -EINVAL;
}
return 0;
}
static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, int id)
{
struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
u32 values[HDA_MAX_COMPONENTS];
struct acpi_device *adev;
struct device *physdev;
const char *sub;
char *property;
size_t nval;
int i, ret;
adev = acpi_dev_get_first_match_dev(hid, NULL, -1);
if (!adev) {
dev_err(cs35l41->dev, "Failed to find an ACPI device for %s\n", hid);
return -ENODEV;
}
physdev = get_device(acpi_get_first_physical_node(adev));
acpi_dev_put(adev);
sub = acpi_get_subsystem_id(ACPI_HANDLE(physdev));
if (IS_ERR(sub))
sub = NULL;
cs35l41->acpi_subsystem_id = sub;
property = "cirrus,dev-index";
ret = device_property_count_u32(physdev, property);
if (ret <= 0) {
ret = cs35l41_no_acpi_dsd(cs35l41, physdev, id, hid);
goto err_put_physdev;
}
if (ret > ARRAY_SIZE(values)) {
ret = -EINVAL;
goto err;
}
nval = ret;
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret)
goto err;
cs35l41->index = -1;
for (i = 0; i < nval; i++) {
if (values[i] == id) {
cs35l41->index = i;
break;
}
}
if (cs35l41->index == -1) {
dev_err(cs35l41->dev, "No index found in %s\n", property);
ret = -ENODEV;
goto err;
}
/* To use the same release code for all laptop variants we can't use devm_ version of
* gpiod_get here, as CLSA010* don't have a fully functional bios with an _DSD node
*/
cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(adev), "reset", cs35l41->index,
GPIOD_OUT_LOW, "cs35l41-reset");
property = "cirrus,speaker-position";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret)
goto err;
hw_cfg->spk_pos = values[cs35l41->index];
cs35l41->channel_index = 0;
for (i = 0; i < cs35l41->index; i++)
if (values[i] == hw_cfg->spk_pos)
cs35l41->channel_index++;
property = "cirrus,gpio1-func";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret)
goto err;
hw_cfg->gpio1.func = values[cs35l41->index];
hw_cfg->gpio1.valid = true;
property = "cirrus,gpio2-func";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret)
goto err;
hw_cfg->gpio2.func = values[cs35l41->index];
hw_cfg->gpio2.valid = true;
property = "cirrus,boost-peak-milliamp";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret == 0)
hw_cfg->bst_ipk = values[cs35l41->index];
else
hw_cfg->bst_ipk = -1;
property = "cirrus,boost-ind-nanohenry";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret == 0)
hw_cfg->bst_ind = values[cs35l41->index];
else
hw_cfg->bst_ind = -1;
property = "cirrus,boost-cap-microfarad";
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret == 0)
hw_cfg->bst_cap = values[cs35l41->index];
else
hw_cfg->bst_cap = -1;
cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, cs35l41->index, nval, -1);
if (hw_cfg->bst_ind > 0 || hw_cfg->bst_cap > 0 || hw_cfg->bst_ipk > 0)
hw_cfg->bst_type = CS35L41_INT_BOOST;
else
hw_cfg->bst_type = CS35L41_EXT_BOOST;
hw_cfg->valid = true;
put_device(physdev);
return 0;
err:
dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret);
err_put_physdev:
put_device(physdev);
return ret;
}
int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
struct regmap *regmap)
{
unsigned int int_sts, regid, reg_revid, mtl_revid, chipid, int_status;
struct cs35l41_hda *cs35l41;
int ret;
BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != ARRAY_SIZE(cs35l41_reg_irqs));
BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != CS35L41_NUM_IRQ);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
cs35l41 = devm_kzalloc(dev, sizeof(*cs35l41), GFP_KERNEL);
if (!cs35l41)
return -ENOMEM;
cs35l41->dev = dev;
cs35l41->irq = irq;
cs35l41->regmap = regmap;
dev_set_drvdata(dev, cs35l41);
ret = cs35l41_hda_read_acpi(cs35l41, device_name, id);
if (ret)
return dev_err_probe(cs35l41->dev, ret, "Platform not supported\n");
if (IS_ERR(cs35l41->reset_gpio)) {
ret = PTR_ERR(cs35l41->reset_gpio);
cs35l41->reset_gpio = NULL;
if (ret == -EBUSY) {
dev_info(cs35l41->dev, "Reset line busy, assuming shared reset\n");
} else {
dev_err_probe(cs35l41->dev, ret, "Failed to get reset GPIO\n");
goto err;
}
}
if (cs35l41->reset_gpio) {
usleep_range(2000, 2100);
gpiod_set_value_cansleep(cs35l41->reset_gpio, 1);
}
usleep_range(2000, 2100);
ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS4, int_status,
int_status & CS35L41_OTP_BOOT_DONE, 1000, 100000);
if (ret) {
dev_err(cs35l41->dev, "Failed waiting for OTP_BOOT_DONE: %d\n", ret);
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_sts);
if (ret || (int_sts & CS35L41_OTP_BOOT_ERR)) {
dev_err(cs35l41->dev, "OTP Boot status %x error: %d\n",
int_sts & CS35L41_OTP_BOOT_ERR, ret);
ret = -EIO;
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_DEVID, &regid);
if (ret) {
dev_err(cs35l41->dev, "Get Device ID failed: %d\n", ret);
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_REVID, &reg_revid);
if (ret) {
dev_err(cs35l41->dev, "Get Revision ID failed: %d\n", ret);
goto err;
}
mtl_revid = reg_revid & CS35L41_MTLREVID_MASK;
chipid = (mtl_revid % 2) ? CS35L41R_CHIP_ID : CS35L41_CHIP_ID;
if (regid != chipid) {
dev_err(cs35l41->dev, "CS35L41 Device ID (%X). Expected ID %X\n", regid, chipid);
ret = -ENODEV;
goto err;
}
ret = cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap);
if (ret)
goto err;
ret = cs35l41_register_errata_patch(cs35l41->dev, cs35l41->regmap, reg_revid);
if (ret)
goto err;
ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap);
if (ret) {
dev_err(cs35l41->dev, "OTP Unpack failed: %d\n", ret);
goto err;
}
ret = cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap);
if (ret)
goto err;
INIT_WORK(&cs35l41->fw_load_work, cs35l41_fw_load_work);
mutex_init(&cs35l41->fw_mutex);
pm_runtime_set_autosuspend_delay(cs35l41->dev, 3000);
pm_runtime_use_autosuspend(cs35l41->dev);
pm_runtime_mark_last_busy(cs35l41->dev);
pm_runtime_set_active(cs35l41->dev);
pm_runtime_get_noresume(cs35l41->dev);
pm_runtime_enable(cs35l41->dev);
ret = cs35l41_hda_apply_properties(cs35l41);
if (ret)
goto err_pm;
pm_runtime_put_autosuspend(cs35l41->dev);
ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops);
if (ret) {
dev_err(cs35l41->dev, "Register component failed: %d\n", ret);
pm_runtime_disable(cs35l41->dev);
goto err;
}
dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid);
return 0;
err_pm:
pm_runtime_disable(cs35l41->dev);
pm_runtime_put_noidle(cs35l41->dev);
err:
if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type))
gpiod_set_value_cansleep(cs35l41->reset_gpio, 0);
gpiod_put(cs35l41->reset_gpio);
kfree(cs35l41->acpi_subsystem_id);
return ret;
}
EXPORT_SYMBOL_NS_GPL(cs35l41_hda_probe, SND_HDA_SCODEC_CS35L41);
void cs35l41_hda_remove(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
pm_runtime_get_sync(cs35l41->dev);
pm_runtime_disable(cs35l41->dev);
if (cs35l41->halo_initialized)
cs35l41_remove_dsp(cs35l41);
component_del(cs35l41->dev, &cs35l41_hda_comp_ops);
pm_runtime_put_noidle(cs35l41->dev);
if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type))
gpiod_set_value_cansleep(cs35l41->reset_gpio, 0);
gpiod_put(cs35l41->reset_gpio);
kfree(cs35l41->acpi_subsystem_id);
}
EXPORT_SYMBOL_NS_GPL(cs35l41_hda_remove, SND_HDA_SCODEC_CS35L41);
const struct dev_pm_ops cs35l41_hda_pm_ops = {
RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume,
cs35l41_runtime_idle)
SYSTEM_SLEEP_PM_OPS(cs35l41_system_suspend, cs35l41_system_resume)
};
EXPORT_SYMBOL_NS_GPL(cs35l41_hda_pm_ops, SND_HDA_SCODEC_CS35L41);
MODULE_DESCRIPTION("CS35L41 HDA Driver");
MODULE_IMPORT_NS(SND_HDA_CS_DSP_CONTROLS);
MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS(FW_CS_DSP);