@@ -4,6 +4,7 @@
* Copyright (C) 2019-2021 Intel Corporation
*/
#include <linux/uuid.h>
+#include <linux/dmi.h>
#include "iwl-drv.h"
#include "iwl-debug.h"
#include "acpi.h"
@@ -19,6 +20,30 @@ const guid_t iwl_rfi_guid = GUID_INIT(0x7266172C, 0x220B, 0x4B29,
0xDD, 0x26, 0xB5, 0xFD);
IWL_EXPORT_SYMBOL(iwl_rfi_guid);
+static const struct dmi_system_id dmi_ppag_approved_list[] = {
+ { .ident = "HP",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+ },
+ },
+ { .ident = "SAMSUNG",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
+ },
+ },
+ { .ident = "MSFT",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ },
+ },
+ { .ident = "ASUS",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek COMPUTER INC."),
+ },
+ },
+ {}
+};
+
static int iwl_acpi_get_handle(struct device *dev, acpi_string method,
acpi_handle *ret_handle)
{
@@ -971,3 +996,181 @@ __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt)
return config_bitmap;
}
IWL_EXPORT_SYMBOL(iwl_acpi_get_lari_config_bitmap);
+
+int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
+{
+ union acpi_object *wifi_pkg, *data, *flags;
+ int i, j, ret, tbl_rev, num_sub_bands = 0;
+ int idx = 2;
+
+ fwrt->ppag_flags = 0;
+
+ data = iwl_acpi_get_object(fwrt->dev, ACPI_PPAG_METHOD);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ /* try to read ppag table rev 2 or 1 (both have the same data size) */
+ wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+ ACPI_PPAG_WIFI_DATA_SIZE_V2, &tbl_rev);
+
+ if (!IS_ERR(wifi_pkg)) {
+ if (tbl_rev == 1 || tbl_rev == 2) {
+ num_sub_bands = IWL_NUM_SUB_BANDS_V2;
+ IWL_DEBUG_RADIO(fwrt,
+ "Reading PPAG table v2 (tbl_rev=%d)\n",
+ tbl_rev);
+ goto read_table;
+ } else {
+ ret = -EINVAL;
+ goto out_free;
+ }
+ }
+
+ /* try to read ppag table revision 0 */
+ wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+ ACPI_PPAG_WIFI_DATA_SIZE_V1, &tbl_rev);
+
+ if (!IS_ERR(wifi_pkg)) {
+ if (tbl_rev != 0) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+ num_sub_bands = IWL_NUM_SUB_BANDS_V1;
+ IWL_DEBUG_RADIO(fwrt, "Reading PPAG table v1 (tbl_rev=0)\n");
+ goto read_table;
+ }
+
+read_table:
+ fwrt->ppag_ver = tbl_rev;
+ flags = &wifi_pkg->package.elements[1];
+
+ if (flags->type != ACPI_TYPE_INTEGER) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+
+ fwrt->ppag_flags = flags->integer.value & ACPI_PPAG_MASK;
+
+ if (!fwrt->ppag_flags) {
+ ret = 0;
+ goto out_free;
+ }
+
+ /*
+ * read, verify gain values and save them into the PPAG table.
+ * first sub-band (j=0) corresponds to Low-Band (2.4GHz), and the
+ * following sub-bands to High-Band (5GHz).
+ */
+ for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
+ for (j = 0; j < num_sub_bands; j++) {
+ union acpi_object *ent;
+
+ ent = &wifi_pkg->package.elements[idx++];
+ if (ent->type != ACPI_TYPE_INTEGER) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+
+ fwrt->ppag_chains[i].subbands[j] = ent->integer.value;
+
+ if ((j == 0 &&
+ (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_LB ||
+ fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_LB)) ||
+ (j != 0 &&
+ (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_HB ||
+ fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_HB))) {
+ fwrt->ppag_flags = 0;
+ ret = -EINVAL;
+ goto out_free;
+ }
+ }
+ }
+
+
+ ret = 0;
+
+out_free:
+ kfree(data);
+ return ret;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_get_ppag_table);
+
+int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd,
+ int *cmd_size)
+{
+ u8 cmd_ver;
+ int i, j, num_sub_bands;
+ s8 *gain;
+
+ if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) {
+ IWL_DEBUG_RADIO(fwrt,
+ "PPAG capability not supported by FW, command not sent.\n");
+ return -EINVAL;
+ }
+ if (!fwrt->ppag_flags) {
+ IWL_DEBUG_RADIO(fwrt, "PPAG not enabled, command not sent.\n");
+ return -EINVAL;
+ }
+
+ /* The 'flags' field is the same in v1 and in v2 so we can just
+ * use v1 to access it.
+ */
+ cmd->v1.flags = cpu_to_le32(fwrt->ppag_flags);
+ cmd_ver = iwl_fw_lookup_cmd_ver(fwrt->fw,
+ WIDE_ID(PHY_OPS_GROUP, PER_PLATFORM_ANT_GAIN_CMD),
+ IWL_FW_CMD_VER_UNKNOWN);
+ if (cmd_ver == 1) {
+ num_sub_bands = IWL_NUM_SUB_BANDS_V1;
+ gain = cmd->v1.gain[0];
+ *cmd_size = sizeof(cmd->v1);
+ if (fwrt->ppag_ver == 1 || fwrt->ppag_ver == 2) {
+ IWL_DEBUG_RADIO(fwrt,
+ "PPAG table rev is %d but FW supports v1, sending truncated table\n",
+ fwrt->ppag_ver);
+ cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
+ }
+ } else if (cmd_ver == 2 || cmd_ver == 3) {
+ num_sub_bands = IWL_NUM_SUB_BANDS_V2;
+ gain = cmd->v2.gain[0];
+ *cmd_size = sizeof(cmd->v2);
+ if (fwrt->ppag_ver == 0) {
+ IWL_DEBUG_RADIO(fwrt,
+ "PPAG table is v1 but FW supports v2, sending padded table\n");
+ } else if (cmd_ver == 2 && fwrt->ppag_ver == 2) {
+ IWL_DEBUG_RADIO(fwrt,
+ "PPAG table is v3 but FW supports v2, sending partial bitmap.\n");
+ cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
+ }
+ } else {
+ IWL_DEBUG_RADIO(fwrt, "Unsupported PPAG command version\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
+ for (j = 0; j < num_sub_bands; j++) {
+ gain[i * num_sub_bands + j] =
+ fwrt->ppag_chains[i].subbands[j];
+ IWL_DEBUG_RADIO(fwrt,
+ "PPAG table: chain[%d] band[%d]: gain = %d\n",
+ i, j, gain[i * num_sub_bands + j]);
+ }
+ }
+
+ return 0;
+}
+IWL_EXPORT_SYMBOL(iwl_read_ppag_table);
+
+bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt)
+{
+
+ if (!dmi_check_system(dmi_ppag_approved_list)) {
+ IWL_DEBUG_RADIO(fwrt,
+ "System vendor '%s' is not in the approved list, disabling PPAG.\n",
+ dmi_get_system_info(DMI_SYS_VENDOR));
+ fwrt->ppag_flags = 0;
+ return false;
+ }
+
+ return true;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_is_ppag_approved);
@@ -91,6 +91,8 @@
#define ACPI_PPAG_MAX_LB 24
#define ACPI_PPAG_MIN_HB -16
#define ACPI_PPAG_MAX_HB 40
+#define ACPI_PPAG_MASK 3
+#define IWL_PPAG_ETSI_MASK BIT(0)
#define IWL_SAR_ENABLE_MSK BIT(0)
#define IWL_REDUCE_POWER_FLAGS_POS 1
@@ -223,6 +225,13 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt,
__le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt);
+int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt);
+
+int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd,
+ int *cmd_size);
+
+bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt);
+
#else /* CONFIG_ACPI */
static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
@@ -310,6 +319,22 @@ static inline __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt
return 0;
}
+static inline int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
+{
+ return -ENOENT;
+}
+
+static inline int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt,
+ union iwl_ppag_table_cmd *cmd, int *cmd_size)
+{
+ return -ENOENT;
+}
+
+static inline bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt)
+{
+ return false;
+}
+
#endif /* CONFIG_ACPI */
static inline union acpi_object *
@@ -25,9 +25,6 @@
#define MVM_UCODE_ALIVE_TIMEOUT (HZ)
#define MVM_UCODE_CALIB_TIMEOUT (2 * HZ)
-#define IWL_PPAG_MASK 3
-#define IWL_PPAG_ETSI_MASK BIT(0)
-
#define IWL_TAS_US_MCC 0x5553
#define IWL_TAS_CANADA_MCC 0x4341
@@ -1012,161 +1009,15 @@ static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm)
return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
}
-static int iwl_mvm_get_ppag_table(struct iwl_mvm *mvm)
-{
- union acpi_object *wifi_pkg, *data, *flags;
- int i, j, ret, tbl_rev, num_sub_bands;
- int idx = 2;
-
- mvm->fwrt.ppag_flags = 0;
-
- data = iwl_acpi_get_object(mvm->dev, ACPI_PPAG_METHOD);
- if (IS_ERR(data))
- return PTR_ERR(data);
-
- /* try to read ppag table rev 2 or 1 (both have the same data size) */
- wifi_pkg = iwl_acpi_get_wifi_pkg(mvm->dev, data,
- ACPI_PPAG_WIFI_DATA_SIZE_V2, &tbl_rev);
- if (!IS_ERR(wifi_pkg)) {
- if (tbl_rev == 1 || tbl_rev == 2) {
- num_sub_bands = IWL_NUM_SUB_BANDS_V2;
- IWL_DEBUG_RADIO(mvm,
- "Reading PPAG table v2 (tbl_rev=%d)\n",
- tbl_rev);
- goto read_table;
- } else {
- ret = -EINVAL;
- goto out_free;
- }
- }
-
- /* try to read ppag table revision 0 */
- wifi_pkg = iwl_acpi_get_wifi_pkg(mvm->dev, data,
- ACPI_PPAG_WIFI_DATA_SIZE_V1, &tbl_rev);
- if (!IS_ERR(wifi_pkg)) {
- if (tbl_rev != 0) {
- ret = -EINVAL;
- goto out_free;
- }
- num_sub_bands = IWL_NUM_SUB_BANDS_V1;
- IWL_DEBUG_RADIO(mvm, "Reading PPAG table v1 (tbl_rev=0)\n");
- goto read_table;
- }
- ret = PTR_ERR(wifi_pkg);
- goto out_free;
-
-read_table:
- mvm->fwrt.ppag_ver = tbl_rev;
- flags = &wifi_pkg->package.elements[1];
-
- if (flags->type != ACPI_TYPE_INTEGER) {
- ret = -EINVAL;
- goto out_free;
- }
-
- mvm->fwrt.ppag_flags = flags->integer.value & IWL_PPAG_MASK;
-
- if (!mvm->fwrt.ppag_flags) {
- ret = 0;
- goto out_free;
- }
-
- /*
- * read, verify gain values and save them into the PPAG table.
- * first sub-band (j=0) corresponds to Low-Band (2.4GHz), and the
- * following sub-bands to High-Band (5GHz).
- */
- for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
- for (j = 0; j < num_sub_bands; j++) {
- union acpi_object *ent;
-
- ent = &wifi_pkg->package.elements[idx++];
- if (ent->type != ACPI_TYPE_INTEGER) {
- ret = -EINVAL;
- goto out_free;
- }
-
- mvm->fwrt.ppag_chains[i].subbands[j] = ent->integer.value;
-
- if ((j == 0 &&
- (mvm->fwrt.ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_LB ||
- mvm->fwrt.ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_LB)) ||
- (j != 0 &&
- (mvm->fwrt.ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_HB ||
- mvm->fwrt.ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_HB))) {
- mvm->fwrt.ppag_flags = 0;
- ret = -EINVAL;
- goto out_free;
- }
- }
- }
-
- ret = 0;
-out_free:
- kfree(data);
- return ret;
-}
-
int iwl_mvm_ppag_send_cmd(struct iwl_mvm *mvm)
{
union iwl_ppag_table_cmd cmd;
- u8 cmd_ver;
- int i, j, ret, num_sub_bands, cmd_size;
- s8 *gain;
+ int ret, cmd_size;
- if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) {
- IWL_DEBUG_RADIO(mvm,
- "PPAG capability not supported by FW, command not sent.\n");
- return 0;
- }
- if (!mvm->fwrt.ppag_flags) {
- IWL_DEBUG_RADIO(mvm, "PPAG not enabled, command not sent.\n");
- return 0;
- }
-
- /* The 'flags' field is the same in v1 and in v2 so we can just
- * use v1 to access it.
- */
- cmd.v1.flags = cpu_to_le32(mvm->fwrt.ppag_flags);
- cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
- WIDE_ID(PHY_OPS_GROUP, PER_PLATFORM_ANT_GAIN_CMD),
- IWL_FW_CMD_VER_UNKNOWN);
- if (cmd_ver == 1) {
- num_sub_bands = IWL_NUM_SUB_BANDS_V1;
- gain = cmd.v1.gain[0];
- cmd_size = sizeof(cmd.v1);
- if (mvm->fwrt.ppag_ver == 1 || mvm->fwrt.ppag_ver == 2) {
- IWL_DEBUG_RADIO(mvm,
- "PPAG table rev is %d but FW supports v1, sending truncated table\n",
- mvm->fwrt.ppag_ver);
- cmd.v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
- }
- } else if (cmd_ver == 2 || cmd_ver == 3) {
- num_sub_bands = IWL_NUM_SUB_BANDS_V2;
- gain = cmd.v2.gain[0];
- cmd_size = sizeof(cmd.v2);
- if (mvm->fwrt.ppag_ver == 0) {
- IWL_DEBUG_RADIO(mvm,
- "PPAG table is v1 but FW supports v2, sending padded table\n");
- } else if (cmd_ver == 2 && mvm->fwrt.ppag_ver == 2) {
- IWL_DEBUG_RADIO(mvm,
- "PPAG table is v3 but FW supports v2, sending partial bitmap.\n");
- cmd.v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
- }
- } else {
- IWL_DEBUG_RADIO(mvm, "Unsupported PPAG command version\n");
- return 0;
- }
+ ret = iwl_read_ppag_table(&mvm->fwrt, &cmd, &cmd_size);
+ if(ret < 0)
+ return ret;
- for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
- for (j = 0; j < num_sub_bands; j++) {
- gain[i * num_sub_bands + j] =
- mvm->fwrt.ppag_chains[i].subbands[j];
- IWL_DEBUG_RADIO(mvm,
- "PPAG table: chain[%d] band[%d]: gain = %d\n",
- i, j, gain[i * num_sub_bands + j]);
- }
- }
IWL_DEBUG_RADIO(mvm, "Sending PER_PLATFORM_ANT_GAIN_CMD\n");
ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(PHY_OPS_GROUP,
PER_PLATFORM_ANT_GAIN_CMD),
@@ -1178,40 +1029,11 @@ int iwl_mvm_ppag_send_cmd(struct iwl_mvm *mvm)
return ret;
}
-static const struct dmi_system_id dmi_ppag_approved_list[] = {
- { .ident = "HP",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- },
- },
- { .ident = "SAMSUNG",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
- },
- },
- { .ident = "MSFT",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
- },
- },
- { .ident = "ASUS",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek COMPUTER INC."),
- },
- },
- {}
-};
-
static int iwl_mvm_ppag_init(struct iwl_mvm *mvm)
{
/* no need to read the table, done in INIT stage */
- if (!dmi_check_system(dmi_ppag_approved_list)) {
- IWL_DEBUG_RADIO(mvm,
- "System vendor '%s' is not in the approved list, disabling PPAG.\n",
- dmi_get_system_info(DMI_SYS_VENDOR));
- mvm->fwrt.ppag_flags = 0;
+ if (!(iwl_acpi_is_ppag_approved(&mvm->fwrt)))
return 0;
- }
return iwl_mvm_ppag_send_cmd(mvm);
}
@@ -1438,7 +1260,7 @@ void iwl_mvm_get_acpi_tables(struct iwl_mvm *mvm)
int ret;
/* read PPAG table */
- ret = iwl_mvm_get_ppag_table(mvm);
+ ret = iwl_acpi_get_ppag_table(&mvm->fwrt);
if (ret < 0) {
IWL_DEBUG_RADIO(mvm,
"PPAG BIOS table invalid or unavailable. (%d)\n",