Currently, ath12k does not have the ability to set band edge channel power
for WCN7850. In order to support this, ath12k gets band edge channel power
table in ath12k_acpi_dsm_get_data() function and sets pdev_id and
param_type_id, then finally sends these data and
WMI_PDEV_SET_BIOS_INTERFACE_CMDID to firmware to set band edge channel
power.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Signed-off-by: Lingbo Kong <quic_lingbok@xxxxxxxxxxx>
---
v4:
1.revise commit log using imperative voice
v3:
1.remove unnecessary cpu_to_le32()
2.adjust the order of the macros
v2:
no change
drivers/net/wireless/ath/ath12k/acpi.c | 29 +++++++++++++++++++
drivers/net/wireless/ath/ath12k/acpi.h | 5 ++++
drivers/net/wireless/ath/ath12k/core.h | 1 +
drivers/net/wireless/ath/ath12k/wmi.c | 40 ++++++++++++++++++++++++++
drivers/net/wireless/ath/ath12k/wmi.h | 3 ++
5 files changed, 78 insertions(+)
diff --git a/drivers/net/wireless/ath/ath12k/acpi.c b/drivers/net/wireless/ath/ath12k/acpi.c
index a9931e17bd17..389b900df170 100644
--- a/drivers/net/wireless/ath/ath12k/acpi.c
+++ b/drivers/net/wireless/ath/ath12k/acpi.c
@@ -82,6 +82,16 @@ static int ath12k_acpi_dsm_get_data(struct ath12k_base *ab, int func)
memcpy(&ab->acdata->cca_data, obj->buffer.pointer,
obj->buffer.length);
break;
+ case ATH12K_ACPI_DSM_FUNC_INDEX_BAND_EDGE:
+ if (obj->buffer.length != ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE) {
+ ath12k_err(ab, "Invalid BAND EDGE data size %d\n",
+ obj->buffer.length);
+ ret = -EINVAL;
+ goto out;
+ }
+ memcpy(&ab->acdata->band_edge_power, obj->buffer.pointer,
+ obj->buffer.length);
+ break;
}
} else {
ath12k_err(ab,
@@ -311,6 +321,25 @@ int ath12k_get_acpi_all_data(struct ath12k_base *ab)
}
}
+ if (ATH12K_ACPI_FUNC_BIT_VALID(ab->acdata, ATH12K_ACPI_FUNC_BIT_BAND_EDGE_CHAN_POWER)) {
+ ret = ath12k_acpi_dsm_get_data(ab,
+ ATH12K_ACPI_DSM_FUNC_INDEX_BAND_EDGE);
+ if (ret) {
+ ath12k_err(ab, "failed to get band edge channel power %d\n", ret);
+ goto err_free_acdata;
+ }
+
+ if (ab->acdata->band_edge_power[0] == ATH12K_ACPI_BAND_EDGE_VERSION &&
+ ab->acdata->band_edge_power[1] == ATH12K_ACPI_BAND_EDGE_ENABLE_FLAG) {
+ ret = ath12k_wmi_pdev_set_band_edge_power(ab,
+ ab->acdata->band_edge_power);
+ if (ret) {
+ ath12k_err(ab, "set band edge channel power failed %d\n", ret);
+ goto err_free_acdata;
+ }
+ }
+ }
+
status = acpi_install_notify_handler(ACPI_HANDLE(ab->dev),
ACPI_DEVICE_NOTIFY,
acpi_dsm_notify, ab);
diff --git a/drivers/net/wireless/ath/ath12k/acpi.h b/drivers/net/wireless/ath/ath12k/acpi.h
index 1f05a68e490b..27f28fc13600 100644
--- a/drivers/net/wireless/ath/ath12k/acpi.h
+++ b/drivers/net/wireless/ath/ath12k/acpi.h
@@ -14,12 +14,14 @@
#define ATH12K_ACPI_DSM_FUNC_INDEX_CCA 6
#define ATH12K_ACPI_DSM_FUNC_INDEX_TAS_CFG 8
#define ATH12K_ACPI_DSM_FUNC_INDEX_TAS_DATA 9
+#define ATH12K_ACPI_DSM_FUNC_INDEX_BAND_EDGE 10
#define ATH12K_ACPI_FUNC_BIT_BIOS_SAR BIT(3)
#define ATH12K_ACPI_FUNC_BIT_GEO_OFFSET BIT(4)
#define ATH12K_ACPI_FUNC_BIT_CCA BIT(5)
#define ATH12K_ACPI_FUNC_BIT_TAS_CFG BIT(7)
#define ATH12K_ACPI_FUNC_BIT_TAS_DATA BIT(8)
+#define ATH12K_ACPI_FUNC_BIT_BAND_EDGE_CHAN_POWER BIT(9)
#define ATH12K_ACPI_NOTIFY_EVENT 0x86
#define ATH12K_ACPI_FUNC_BIT_VALID(_acdata, _func) ((((_acdata)->func_bit) & (_func)) != 0)
@@ -30,6 +32,8 @@
#define ATH12K_ACPI_POWER_LIMIT_ENABLE_FLAG 0x1
#define ATH12K_ACPI_CCA_THR_VERSION 0x1
#define ATH12K_ACPI_CCA_THR_ENABLE_FLAG 0x1
+#define ATH12K_ACPI_BAND_EDGE_VERSION 0x1
+#define ATH12K_ACPI_BAND_EDGE_ENABLE_FLAG 0x1
#define ATH12K_ACPI_GEO_OFFSET_DATA_OFFSET 1
#define ATH12K_ACPI_DBS_BACKOFF_DATA_OFFSET 2
@@ -41,6 +45,7 @@
#define ATH12K_ACPI_CCA_THR_OFFSET_LEN 36
#define ATH12K_ACPI_DSM_TAS_DATA_SIZE 69
+#define ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE 100
#define ATH12K_ACPI_DSM_TAS_CFG_SIZE 108
#define ATH12K_ACPI_DSM_GEO_OFFSET_DATA_SIZE (ATH12K_ACPI_GEO_OFFSET_DATA_OFFSET + \
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index d57e2013b0fe..d06c3984aef9 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -781,6 +781,7 @@ struct ath12k_base {
u8 bios_sar_data[ATH12K_ACPI_DSM_BIOS_SAR_DATA_SIZE];
u8 geo_offset_data[ATH12K_ACPI_DSM_GEO_OFFSET_DATA_SIZE];
u8 cca_data[ATH12K_ACPI_DSM_CCA_DATA_SIZE];
+ u8 band_edge_power[ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE];
} *acdata;
/* must be last */
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 727ce28abd7d..102228229932 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -7130,3 +7130,43 @@ int ath12k_wmi_pdev_set_cca_thr_table_param(struct ath12k_base *ab,
}
return ret;
}
+
+int ath12k_wmi_pdev_set_band_edge_power(struct ath12k_base *ab,
+ const u8 *pchan_table)
+{
+ struct ath12k_wmi_base *wmi_ab = &ab->wmi_ab;
+ struct wmi_pdev_set_bios_interface_cmd *cmd;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ int ret;
+ u8 *buf_ptr;
+ u32 len, len_aligned;
+
+ len_aligned = roundup(ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE, sizeof(u32));
+ len = sizeof(*cmd) + TLV_HDR_SIZE + len_aligned;
+
+ skb = ath12k_wmi_alloc_skb(wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_pdev_set_bios_interface_cmd *)skb->data;
+ cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_PDEV_SET_BIOS_INTERFACE_CMD_PARAMS,
+ sizeof(*cmd));
+ cmd->pdev_id = cpu_to_le32(WMI_PDEV_ID_SOC);
+ cmd->param_type_id = cpu_to_le32(WMI_BIOS_PARAM_TYPE_BANDEDGE_CTL_POWER);
+ cmd->length = cpu_to_le32(ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE);
+
+ buf_ptr = skb->data + sizeof(*cmd);
+ tlv = (struct wmi_tlv *)buf_ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_BYTE, len_aligned);
+ buf_ptr += TLV_HDR_SIZE;
+ memcpy(buf_ptr, pchan_table, ATH12K_ACPI_DSM_BAND_EDGE_DATA_SIZE);
+
+ ret = ath12k_wmi_cmd_send(&wmi_ab->wmi[0], skb, WMI_PDEV_SET_BIOS_INTERFACE_CMDID);
+ if (ret) {
+ ath12k_warn(ab, "failed to send WMI_PDEV_SET_BIOS_INTERFACE_CMDID %d\n", ret);
+ dev_kfree_skb(skb);
+ }
+
+ return ret;
+}
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 7607cd7ab699..73d790d405cd 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -4808,6 +4808,7 @@ enum bios_param_type {
WMI_BIOS_PARAM_CCA_THRESHOLD_TYPE = 0,
WMI_BIOS_PARAM_TAS_CONFIG_TYPE = 1,
WMI_BIOS_PARAM_TAS_DATA_TYPE = 2,
+ WMI_BIOS_PARAM_TYPE_BANDEDGE_CTL_POWER = 3,
WMI_BIOS_PARAM_TYPE_MAX,
};
@@ -4955,4 +4956,6 @@ int ath12k_wmi_pdev_set_bios_geo_table_param(struct ath12k_base *ab,
u8 *pgeo_table);
int ath12k_wmi_pdev_set_cca_thr_table_param(struct ath12k_base *ab,
u8 *pcca_table);
+int ath12k_wmi_pdev_set_band_edge_power(struct ath12k_base *ab,
+ const u8 *pchan_table);
#endif
--
2.34.1
