diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath12k/acpi.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/acpi.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath12k/acpi.c b/drivers/net/wireless/ath/ath12k/acpi.c index dc8135703fc7..177babc50f25 100644 --- a/drivers/net/wireless/ath/ath12k/acpi.c +++ b/drivers/net/wireless/ath/ath12k/acpi.c @@ -56,6 +56,30 @@ static int ath12k_acpi_dsm_get_data(struct ath12k_base *ab, int func) obj->buffer.length); break; + case ATH12K_ACPI_DSM_FUNC_BIOS_SAR: + if (obj->buffer.length != ATH12K_ACPI_DSM_BIOS_SAR_DATA_SIZE) { + ath12k_warn(ab, "invalid ACPI BIOS SAR data size: %d\n", + obj->buffer.length); + ret = -EINVAL; + goto out; + } + + memcpy(&ab->acpi.bios_sar_data, obj->buffer.pointer, + obj->buffer.length); + + break; + case ATH12K_ACPI_DSM_FUNC_GEO_OFFSET: + if (obj->buffer.length != ATH12K_ACPI_DSM_GEO_OFFSET_DATA_SIZE) { + ath12k_warn(ab, "invalid ACPI GEO OFFSET data size: %d\n", + obj->buffer.length); + ret = -EINVAL; + goto out; + } + + memcpy(&ab->acpi.geo_offset_data, obj->buffer.pointer, + obj->buffer.length); + + break; } } else { ath12k_warn(ab, "ACPI DSM method returned an unsupported object type: %d\n", @@ -93,6 +117,25 @@ static int ath12k_acpi_set_power_limit(struct ath12k_base *ab) return ret; } +static int ath12k_acpi_set_bios_sar_power(struct ath12k_base *ab) +{ + int ret; + + if (ab->acpi.bios_sar_data[0] != ATH12K_ACPI_POWER_LIMIT_VERSION || + ab->acpi.bios_sar_data[1] != ATH12K_ACPI_POWER_LIMIT_ENABLE_FLAG) { + ath12k_warn(ab, "invalid latest ACPI BIOS SAR data\n"); + return -EINVAL; + } + + ret = ath12k_wmi_set_bios_sar_cmd(ab, ab->acpi.bios_sar_data); + if (ret) { + ath12k_warn(ab, "failed to set ACPI BIOS SAR table: %d\n", ret); + return ret; + } + + return 0; +} + static void ath12k_acpi_dsm_notify(acpi_handle handle, u32 event, void *data) { int ret; @@ -119,6 +162,40 @@ static void ath12k_acpi_dsm_notify(acpi_handle handle, u32 event, void *data) ath12k_warn(ab, "failed to set ACPI TAS power limit data: %d", ret); return; } + + if (!ab->acpi.acpi_bios_sar_enable) + return; + + ret = ath12k_acpi_dsm_get_data(ab, ATH12K_ACPI_DSM_FUNC_BIOS_SAR); + if (ret) { + ath12k_warn(ab, "failed to update BIOS SAR: %d\n", ret); + return; + } + + ret = ath12k_acpi_set_bios_sar_power(ab); + if (ret) { + ath12k_warn(ab, "failed to set BIOS SAR power limit: %d\n", ret); + return; + } +} + +static int ath12k_acpi_set_bios_sar_params(struct ath12k_base *ab) +{ + int ret; + + ret = ath12k_wmi_set_bios_sar_cmd(ab, ab->acpi.bios_sar_data); + if (ret) { + ath12k_warn(ab, "failed to set ACPI BIOS SAR table: %d\n", ret); + return ret; + } + + ret = ath12k_wmi_set_bios_geo_cmd(ab, ab->acpi.geo_offset_data); + if (ret) { + ath12k_warn(ab, "failed to set ACPI BIOS GEO table: %d\n", ret); + return ret; + } + + return 0; } static int ath12k_acpi_set_tas_params(struct ath12k_base *ab) @@ -184,6 +261,28 @@ int ath12k_acpi_start(struct ath12k_base *ab) ab->acpi.acpi_tas_enable = true; } + if (ATH12K_ACPI_FUNC_BIT_VALID(ab->acpi, ATH12K_ACPI_FUNC_BIT_BIOS_SAR)) { + ret = ath12k_acpi_dsm_get_data(ab, ATH12K_ACPI_DSM_FUNC_BIOS_SAR); + if (ret) { + ath12k_warn(ab, "failed to get ACPI bios sar data: %d\n", ret); + return ret; + } + } + + if (ATH12K_ACPI_FUNC_BIT_VALID(ab->acpi, ATH12K_ACPI_FUNC_BIT_GEO_OFFSET)) { + ret = ath12k_acpi_dsm_get_data(ab, ATH12K_ACPI_DSM_FUNC_GEO_OFFSET); + if (ret) { + ath12k_warn(ab, "failed to get ACPI geo offset data: %d\n", ret); + return ret; + } + + if (ATH12K_ACPI_FUNC_BIT_VALID(ab->acpi, ATH12K_ACPI_FUNC_BIT_BIOS_SAR) && + ab->acpi.bios_sar_data[0] == ATH12K_ACPI_POWER_LIMIT_VERSION && + ab->acpi.bios_sar_data[1] == ATH12K_ACPI_POWER_LIMIT_ENABLE_FLAG && + !ab->acpi.acpi_tas_enable) + ab->acpi.acpi_bios_sar_enable = true; + } + if (ab->acpi.acpi_tas_enable) { ret = ath12k_acpi_set_tas_params(ab); if (ret) { @@ -192,6 +291,12 @@ int ath12k_acpi_start(struct ath12k_base *ab) } } + if (ab->acpi.acpi_bios_sar_enable) { + ret = ath12k_acpi_set_bios_sar_params(ab); + if (ret) + return ret; + } + status = acpi_install_notify_handler(ACPI_HANDLE(ab->dev), ACPI_DEVICE_NOTIFY, ath12k_acpi_dsm_notify, ab); |