wifi: ath12k: ACPI band edge channel power support

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@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240422033054.979-5-quic_lingbok@quicinc.com

diff --git a/drivers/net/wireless/ath/ath12k/acpi.c b/drivers/net/wireless/ath/ath12k/acpi.c
index 4af80dd13535253aa8e192721bdbf10ebf161098..443ba12e01f375e77b0088f9b02e778b5eaf9f82 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/acpi.c
+++ b/drivers/net/wireless/ath/ath12k/acpi.c
@@ -91,6 +91,18 @@ static int ath12k_acpi_dsm_get_data(struct ath12k_base *ab, int func)
                        memcpy(&ab->acpi.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_warn(ab, "invalid ACPI DSM band edge data size: %d\n",
+                                           obj->buffer.length);
+                               ret = -EINVAL;
+                               goto out;
+                       }
+
+                       memcpy(&ab->acpi.band_edge_power, obj->buffer.pointer,
+                              obj->buffer.length);
+
                        break;
                }
        } else {
@@ -334,6 +346,30 @@ int ath12k_acpi_start(struct ath12k_base *ab)
                }
        }
 
+       if (ATH12K_ACPI_FUNC_BIT_VALID(ab->acpi,
+                                      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_warn(ab, "failed to get ACPI DSM band edge channel power: %d\n",
+                                   ret);
+                       return ret;
+               }
+
+               if (ab->acpi.band_edge_power[0] == ATH12K_ACPI_BAND_EDGE_VERSION &&
+                   ab->acpi.band_edge_power[1] == ATH12K_ACPI_BAND_EDGE_ENABLE_FLAG) {
+                       ret = ath12k_wmi_set_bios_cmd(ab,
+                                                     WMI_BIOS_PARAM_TYPE_BANDEDGE,
+                                                     ab->acpi.band_edge_power,
+                                                     sizeof(ab->acpi.band_edge_power));
+                       if (ret) {
+                               ath12k_warn(ab,
+                                           "failed to set ACPI DSM band edge channel power: %d\n",
+                                           ret);
+                               return ret;
+                       }
+               }
+       }
+
        status = acpi_install_notify_handler(ACPI_HANDLE(ab->dev),
                                             ACPI_DEVICE_NOTIFY,
                                             ath12k_acpi_dsm_notify, ab);

diff --git a/drivers/net/wireless/ath/ath12k/acpi.h b/drivers/net/wireless/ath/ath12k/acpi.h
index 0879865fd861bae38c662b985fc49ead337584f9..39e003d86a48badf482f41e743e0a5dec43e46e5 100644 (file)
--- 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_TAS_CFG           8
 #define ATH12K_ACPI_DSM_FUNC_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))
@@ -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 93df8bf3ee48bc23805b77056608389ffe17ab19..eb6dd5551f209e44f55844f97e618b82cc86cad8 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -916,6 +916,7 @@ 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];
        } acpi;
 
 #endif /* CONFIG_ACPI */

diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 6db15a0a4735cc37cbbcee9688ad9e1b2009f74d..b5285ed78534a390251c216936730f53c8549b5d 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -4808,6 +4808,10 @@ enum wmi_bios_param_type {
        WMI_BIOS_PARAM_CCA_THRESHOLD_TYPE       = 0,
        WMI_BIOS_PARAM_TAS_CONFIG_TYPE          = 1,
        WMI_BIOS_PARAM_TAS_DATA_TYPE            = 2,
+
+       /* bandedge control power */
+       WMI_BIOS_PARAM_TYPE_BANDEDGE            = 3,
+
        WMI_BIOS_PARAM_TYPE_MAX,
 };