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ALSA: hda/tas2781: Support L"SmartAmpCalibrationData" to save calibrated data

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Some devices save the calibrated data into L"CALI_DATA", and others into
L"SmartAmpCalibrationData". Driver code will support both.

Signed-off-by: Shenghao Ding <shenghao-ding@ti.com>
Link: https://patch.msgid.link/20250805070945.524-1-shenghao-ding@ti.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Shenghao Ding
2025-08-05 15:09:45 +08:00
committed by Takashi Iwai
parent 8cbe564974
commit cac5f2af13
2 changed files with 33 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
sound/hda/codecs/side-codecs/tas2781_hda.c
View File

@@ -18,6 +18,8 @@
#include "tas2781_hda.h"
#define CALIBRATION_DATA_AREA_NUM 2
const efi_guid_t tasdev_fct_efi_guid[] = {
/* DELL */
EFI_GUID(0xcc92382d, 0x6337, 0x41cb, 0xa8, 0x8b, 0x8e, 0xce, 0x74,
@@ -160,36 +162,51 @@ int tas2781_save_calibration(struct tas2781_hda *hda)
* manufactory.
*/
efi_guid_t efi_guid = tasdev_fct_efi_guid[LENOVO];
static efi_char16_t efi_name[] = TASDEVICE_CALIBRATION_DATA_NAME;
/*
* Some devices save the calibrated data into L"CALI_DATA",
* and others into L"SmartAmpCalibrationData".
*/
static efi_char16_t *efi_name[CALIBRATION_DATA_AREA_NUM] = {
L"CALI_DATA",
L"SmartAmpCalibrationData",
};
struct tasdevice_priv *p = hda->priv;
struct calidata *cali_data = &p->cali_data;
unsigned long total_sz = 0;
unsigned int attr, size;
unsigned char *data;
efi_status_t status;
int i;
if (hda->catlog_id < LENOVO)
efi_guid = tasdev_fct_efi_guid[hda->catlog_id];
cali_data->cali_dat_sz_per_dev = 20;
size = p->ndev * (cali_data->cali_dat_sz_per_dev + 1);
/* Get real size of UEFI variable */
status = efi.get_variable(efi_name, &efi_guid, &attr, &total_sz, NULL);
cali_data->total_sz = total_sz > size ? total_sz : size;
if (status == EFI_BUFFER_TOO_SMALL) {
/* Allocate data buffer of data_size bytes */
data = p->cali_data.data = devm_kzalloc(p->dev,
p->cali_data.total_sz, GFP_KERNEL);
if (!data) {
p->cali_data.total_sz = 0;
return -ENOMEM;
for (i = 0; i < CALIBRATION_DATA_AREA_NUM; i++) {
/* Get real size of UEFI variable */
status = efi.get_variable(efi_name[i], &efi_guid, &attr,
&total_sz, NULL);
cali_data->total_sz = total_sz > size ? total_sz : size;
if (status == EFI_BUFFER_TOO_SMALL) {
/* Allocate data buffer of data_size bytes */
data = cali_data->data = devm_kzalloc(p->dev,
cali_data->total_sz, GFP_KERNEL);
if (!data) {
status = -ENOMEM;
continue;
}
/* Get variable contents into buffer */
status = efi.get_variable(efi_name[i], &efi_guid,
&attr, &cali_data->total_sz, data);
}
/* Get variable contents into buffer */
status = efi.get_variable(efi_name, &efi_guid, &attr,
&p->cali_data.total_sz, data);
/* Check whether get the calibrated data */
if (status == EFI_SUCCESS)
break;
}
if (status != EFI_SUCCESS) {
p->cali_data.total_sz = 0;
cali_data->total_sz = 0;
return status;
}

2
sound/hda/codecs/side-codecs/tas2781_hda.h
View File

@@ -11,7 +11,7 @@
/* Flag of calibration registers address. */
#define TASDEV_UEFI_CALI_REG_ADDR_FLG BIT(7)
#define TASDEVICE_CALIBRATION_DATA_NAME L"CALI_DATA"
#define TASDEV_CALIB_N 5
/*