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path: root/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/acpi.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/acpi.c276
1 files changed, 187 insertions, 89 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index 4caf2e25a297..bee7d92293b8 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2017 Intel Deutschland GmbH
- * Copyright (C) 2019-2023 Intel Corporation
+ * Copyright (C) 2019-2025 Intel Corporation
*/
#include <linux/uuid.h>
#include "iwl-drv.h"
@@ -27,6 +27,7 @@ static const size_t acpi_dsm_size[DSM_FUNC_NUM_FUNCS] = {
[DSM_FUNC_FORCE_DISABLE_CHANNELS] = sizeof(u32),
[DSM_FUNC_ENERGY_DETECTION_THRESHOLD] = sizeof(u32),
[DSM_FUNC_RFI_CONFIG] = sizeof(u32),
+ [DSM_FUNC_ENABLE_11BE] = sizeof(u32),
};
static int iwl_acpi_get_handle(struct device *dev, acpi_string method,
@@ -78,9 +79,9 @@ static void *iwl_acpi_get_object(struct device *dev, acpi_string method)
* method (DSM) interface. The returned acpi object must be freed by calling
* function.
*/
-static void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
- union acpi_object *args,
- const guid_t *guid)
+union acpi_object *iwl_acpi_get_dsm_object(struct device *dev, int rev,
+ int func, union acpi_object *args,
+ const guid_t *guid)
{
union acpi_object *obj;
@@ -107,7 +108,7 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
size_t expected_size)
{
union acpi_object *obj;
- int ret = 0;
+ int ret;
obj = iwl_acpi_get_dsm_object(dev, rev, func, NULL, guid);
if (IS_ERR(obj)) {
@@ -122,8 +123,10 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
} else if (obj->type == ACPI_TYPE_BUFFER) {
__le64 le_value = 0;
- if (WARN_ON_ONCE(expected_size > sizeof(le_value)))
- return -EINVAL;
+ if (WARN_ON_ONCE(expected_size > sizeof(le_value))) {
+ ret = -EINVAL;
+ goto out;
+ }
/* if the buffer size doesn't match the expected size */
if (obj->buffer.length != expected_size)
@@ -144,8 +147,9 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
}
IWL_DEBUG_DEV_RADIO(dev,
- "ACPI: DSM method evaluated: func=%d, ret=%d\n",
- func, ret);
+ "ACPI: DSM method evaluated: func=%d, value=%lld\n",
+ func, *value);
+ ret = 0;
out:
ACPI_FREE(obj);
return ret;
@@ -258,13 +262,14 @@ int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
struct iwl_tas_data *tas_data)
{
union acpi_object *wifi_pkg, *data;
- int ret, tbl_rev, i, block_list_size, enabled;
+ int ret, tbl_rev, block_list_size, enabled;
+ u32 tas_selection;
data = iwl_acpi_get_object(fwrt->dev, ACPI_WTAS_METHOD);
if (IS_ERR(data))
return PTR_ERR(data);
- /* try to read wtas table revision 1 or revision 0*/
+ /* try to read wtas table */
wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
ACPI_WTAS_WIFI_DATA_SIZE,
&tbl_rev);
@@ -273,27 +278,23 @@ int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
goto out_free;
}
- if (tbl_rev == 1 && wifi_pkg->package.elements[1].type ==
- ACPI_TYPE_INTEGER) {
- u32 tas_selection =
- (u32)wifi_pkg->package.elements[1].integer.value;
-
- enabled = iwl_parse_tas_selection(fwrt, tas_data,
- tas_selection);
-
- } else if (tbl_rev == 0 &&
- wifi_pkg->package.elements[1].type == ACPI_TYPE_INTEGER) {
- enabled = !!wifi_pkg->package.elements[1].integer.value;
- } else {
+ if (tbl_rev < 0 || tbl_rev > 2 ||
+ wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
ret = -EINVAL;
goto out_free;
}
- if (!enabled) {
- IWL_DEBUG_RADIO(fwrt, "TAS not enabled\n");
- ret = 0;
- goto out_free;
- }
+ tas_selection = (u32)wifi_pkg->package.elements[1].integer.value;
+ enabled = tas_selection & IWL_WTAS_ENABLED_MSK;
+
+ IWL_DEBUG_RADIO(fwrt, "TAS selection as read from BIOS: 0x%x\n",
+ tas_selection);
+ tas_data->table_source = BIOS_SOURCE_ACPI;
+ tas_data->table_revision = tbl_rev;
+ tas_data->tas_selection = tas_selection;
+
+ IWL_DEBUG_RADIO(fwrt, "TAS %s enabled\n",
+ enabled ? "is" : "not");
IWL_DEBUG_RADIO(fwrt, "Reading TAS table revision %d\n", tbl_rev);
if (wifi_pkg->package.elements[2].type != ACPI_TYPE_INTEGER ||
@@ -304,13 +305,14 @@ int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
ret = -EINVAL;
goto out_free;
}
+
block_list_size = wifi_pkg->package.elements[2].integer.value;
- tas_data->block_list_size = cpu_to_le32(block_list_size);
+ tas_data->block_list_size = block_list_size;
IWL_DEBUG_RADIO(fwrt, "TAS array size %u\n", block_list_size);
- for (i = 0; i < block_list_size; i++) {
- u32 country;
+ for (int i = 0; i < block_list_size; i++) {
+ u16 country;
if (wifi_pkg->package.elements[3 + i].type !=
ACPI_TYPE_INTEGER) {
@@ -321,11 +323,11 @@ int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
}
country = wifi_pkg->package.elements[3 + i].integer.value;
- tas_data->block_list_array[i] = cpu_to_le32(country);
+ tas_data->block_list_array[i] = country;
IWL_DEBUG_RADIO(fwrt, "TAS block list country %d\n", country);
}
- ret = 1;
+ ret = enabled;
out_free:
kfree(data);
return ret;
@@ -356,6 +358,11 @@ int iwl_acpi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc)
}
mcc_val = wifi_pkg->package.elements[1].integer.value;
+ if (mcc_val != BIOS_MCC_CHINA) {
+ ret = -EINVAL;
+ IWL_DEBUG_RADIO(fwrt, "ACPI WRDD is supported only for CN\n");
+ goto out_free;
+ }
mcc[0] = (mcc_val >> 8) & 0xff;
mcc[1] = mcc_val & 0xff;
@@ -423,38 +430,28 @@ out_free:
return ret;
}
-static int iwl_acpi_sar_set_profile(union acpi_object *table,
- struct iwl_sar_profile *profile,
- bool enabled, u8 num_chains,
- u8 num_sub_bands)
+static int
+iwl_acpi_parse_chains_table(union acpi_object *table,
+ struct iwl_sar_profile_chain *chains,
+ u8 num_chains, u8 num_sub_bands)
{
- int i, j, idx = 0;
-
- /*
- * The table from ACPI is flat, but we store it in a
- * structured array.
- */
- for (i = 0; i < BIOS_SAR_MAX_CHAINS_PER_PROFILE; i++) {
- for (j = 0; j < BIOS_SAR_MAX_SUB_BANDS_NUM; j++) {
+ for (u8 chain = 0; chain < num_chains; chain++) {
+ for (u8 subband = 0; subband < BIOS_SAR_MAX_SUB_BANDS_NUM;
+ subband++) {
/* if we don't have the values, use the default */
- if (i >= num_chains || j >= num_sub_bands) {
- profile->chains[i].subbands[j] = 0;
+ if (subband >= num_sub_bands) {
+ chains[chain].subbands[subband] = 0;
+ } else if (table->type != ACPI_TYPE_INTEGER ||
+ table->integer.value > U8_MAX) {
+ return -EINVAL;
} else {
- if (table[idx].type != ACPI_TYPE_INTEGER ||
- table[idx].integer.value > U8_MAX)
- return -EINVAL;
-
- profile->chains[i].subbands[j] =
- table[idx].integer.value;
-
- idx++;
+ chains[chain].subbands[subband] =
+ table->integer.value;
+ table++;
}
}
}
- /* Only if all values were valid can the profile be enabled */
- profile->enabled = enabled;
-
return 0;
}
@@ -537,9 +534,11 @@ read_table:
/* The profile from WRDS is officially profile 1, but goes
* into sar_profiles[0] (because we don't have a profile 0).
*/
- ret = iwl_acpi_sar_set_profile(table, &fwrt->sar_profiles[0],
- flags & IWL_SAR_ENABLE_MSK,
- num_chains, num_sub_bands);
+ ret = iwl_acpi_parse_chains_table(table, fwrt->sar_profiles[0].chains,
+ num_chains, num_sub_bands);
+ if (!ret && flags & IWL_SAR_ENABLE_MSK)
+ fwrt->sar_profiles[0].enabled = true;
+
out_free:
kfree(data);
return ret;
@@ -551,7 +550,7 @@ int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt)
bool enabled;
int i, n_profiles, tbl_rev, pos;
int ret = 0;
- u8 num_chains, num_sub_bands;
+ u8 num_sub_bands;
data = iwl_acpi_get_object(fwrt->dev, ACPI_EWRD_METHOD);
if (IS_ERR(data))
@@ -567,7 +566,6 @@ int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt)
goto out_free;
}
- num_chains = ACPI_SAR_NUM_CHAINS_REV2;
num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV2;
goto read_table;
@@ -583,7 +581,6 @@ int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt)
goto out_free;
}
- num_chains = ACPI_SAR_NUM_CHAINS_REV1;
num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV1;
goto read_table;
@@ -599,7 +596,6 @@ int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt)
goto out_free;
}
- num_chains = ACPI_SAR_NUM_CHAINS_REV0;
num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV0;
goto read_table;
@@ -631,23 +627,54 @@ read_table:
/* the tables start at element 3 */
pos = 3;
+ BUILD_BUG_ON(ACPI_SAR_NUM_CHAINS_REV0 != ACPI_SAR_NUM_CHAINS_REV1);
+ BUILD_BUG_ON(ACPI_SAR_NUM_CHAINS_REV2 != 2 * ACPI_SAR_NUM_CHAINS_REV0);
+
+ /* parse non-cdb chains for all profiles */
for (i = 0; i < n_profiles; i++) {
union acpi_object *table = &wifi_pkg->package.elements[pos];
+
/* The EWRD profiles officially go from 2 to 4, but we
* save them in sar_profiles[1-3] (because we don't
* have profile 0). So in the array we start from 1.
*/
- ret = iwl_acpi_sar_set_profile(table,
- &fwrt->sar_profiles[i + 1],
- enabled, num_chains,
- num_sub_bands);
+ ret = iwl_acpi_parse_chains_table(table,
+ fwrt->sar_profiles[i + 1].chains,
+ ACPI_SAR_NUM_CHAINS_REV0,
+ num_sub_bands);
if (ret < 0)
- break;
+ goto out_free;
/* go to the next table */
- pos += num_chains * num_sub_bands;
+ pos += ACPI_SAR_NUM_CHAINS_REV0 * num_sub_bands;
}
+ /* non-cdb table revisions */
+ if (tbl_rev < 2)
+ goto set_enabled;
+
+ /* parse cdb chains for all profiles */
+ for (i = 0; i < n_profiles; i++) {
+ struct iwl_sar_profile_chain *chains;
+ union acpi_object *table;
+
+ table = &wifi_pkg->package.elements[pos];
+ chains = &fwrt->sar_profiles[i + 1].chains[ACPI_SAR_NUM_CHAINS_REV0];
+ ret = iwl_acpi_parse_chains_table(table,
+ chains,
+ ACPI_SAR_NUM_CHAINS_REV0,
+ num_sub_bands);
+ if (ret < 0)
+ goto out_free;
+
+ /* go to the next table */
+ pos += ACPI_SAR_NUM_CHAINS_REV0 * num_sub_bands;
+ }
+
+set_enabled:
+ for (i = 0; i < n_profiles; i++)
+ fwrt->sar_profiles[i + 1].enabled = enabled;
+
out_free:
kfree(data);
return ret;
@@ -724,22 +751,25 @@ int iwl_acpi_get_wgds_table(struct iwl_fw_runtime *fwrt)
entry = &wifi_pkg->package.elements[entry_idx];
entry_idx++;
if (entry->type != ACPI_TYPE_INTEGER ||
- entry->integer.value > num_profiles) {
+ entry->integer.value > num_profiles ||
+ entry->integer.value <
+ rev_data[idx].min_profiles) {
ret = -EINVAL;
goto out_free;
}
- num_profiles = entry->integer.value;
/*
- * this also validates >= min_profiles since we
- * otherwise wouldn't have gotten the data when
- * looking up in ACPI
+ * Check to see if we received package count
+ * same as max # of profiles
*/
if (wifi_pkg->package.count !=
hdr_size + profile_size * num_profiles) {
ret = -EINVAL;
goto out_free;
}
+
+ /* Number of valid profiles */
+ num_profiles = entry->integer.value;
}
goto read_table;
}
@@ -817,12 +847,12 @@ int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
if (IS_ERR(data))
return PTR_ERR(data);
- /* try to read ppag table rev 3, 2 or 1 (all have the same data size) */
+ /* try to read ppag table rev 1 to 4 (all 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 <= 3) {
+ if (tbl_rev >= 1 && tbl_rev <= 4) {
num_sub_bands = IWL_NUM_SUB_BANDS_V2;
IWL_DEBUG_RADIO(fwrt,
"Reading PPAG table (tbl_rev=%d)\n",
@@ -852,7 +882,7 @@ int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
goto out_free;
read_table:
- fwrt->ppag_ver = tbl_rev;
+ fwrt->ppag_bios_rev = tbl_rev;
flags = &wifi_pkg->package.elements[1];
if (flags->type != ACPI_TYPE_INTEGER) {
@@ -861,7 +891,7 @@ read_table:
}
fwrt->ppag_flags = iwl_bios_get_ppag_flags(flags->integer.value,
- fwrt->ppag_ver);
+ fwrt->ppag_bios_rev);
/*
* read, verify gain values and save them into the PPAG table.
@@ -882,6 +912,7 @@ read_table:
}
}
+ fwrt->ppag_bios_source = BIOS_SOURCE_ACPI;
ret = 0;
out_free:
@@ -889,40 +920,39 @@ out_free:
return ret;
}
-void iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt,
- struct iwl_phy_specific_cfg *filters)
+int iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt)
{
+ struct iwl_phy_specific_cfg *filters = &fwrt->phy_filters;
struct iwl_phy_specific_cfg tmp = {};
- union acpi_object *wifi_pkg, *data;
+ union acpi_object *wifi_pkg, *data __free(kfree);
int tbl_rev, i;
data = iwl_acpi_get_object(fwrt->dev, ACPI_WPFC_METHOD);
if (IS_ERR(data))
- return;
+ return PTR_ERR(data);
wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
ACPI_WPFC_WIFI_DATA_SIZE,
&tbl_rev);
if (IS_ERR(wifi_pkg))
- goto out_free;
+ return PTR_ERR(wifi_pkg);
if (tbl_rev != 0)
- goto out_free;
+ return -EINVAL;
BUILD_BUG_ON(ARRAY_SIZE(filters->filter_cfg_chains) !=
ACPI_WPFC_WIFI_DATA_SIZE - 1);
for (i = 0; i < ARRAY_SIZE(filters->filter_cfg_chains); i++) {
if (wifi_pkg->package.elements[i + 1].type != ACPI_TYPE_INTEGER)
- goto out_free;
+ return -EINVAL;
tmp.filter_cfg_chains[i] =
cpu_to_le32(wifi_pkg->package.elements[i + 1].integer.value);
}
IWL_DEBUG_RADIO(fwrt, "Loaded WPFC filter config from ACPI\n");
*filters = tmp;
-out_free:
- kfree(data);
+ return 0;
}
IWL_EXPORT_SYMBOL(iwl_acpi_get_phy_filters);
@@ -960,3 +990,71 @@ out_free:
kfree(data);
}
IWL_EXPORT_SYMBOL(iwl_acpi_get_guid_lock_status);
+
+int iwl_acpi_get_wbem(struct iwl_fw_runtime *fwrt, u32 *value)
+{
+ union acpi_object *wifi_pkg, *data;
+ int ret = -ENOENT;
+ int tbl_rev;
+
+ data = iwl_acpi_get_object(fwrt->dev, ACPI_WBEM_METHOD);
+ if (IS_ERR(data))
+ return ret;
+
+ wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+ ACPI_WBEM_WIFI_DATA_SIZE,
+ &tbl_rev);
+ if (IS_ERR(wifi_pkg))
+ goto out_free;
+
+ if (tbl_rev != IWL_ACPI_WBEM_REVISION) {
+ IWL_DEBUG_RADIO(fwrt, "Unsupported ACPI WBEM revision:%d\n",
+ tbl_rev);
+ goto out_free;
+ }
+
+ if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
+ goto out_free;
+
+ *value = wifi_pkg->package.elements[1].integer.value &
+ IWL_ACPI_WBEM_REV0_MASK;
+ IWL_DEBUG_RADIO(fwrt, "Loaded WBEM config from ACPI\n");
+ ret = 0;
+out_free:
+ kfree(data);
+ return ret;
+}
+
+int iwl_acpi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value)
+{
+ union acpi_object *wifi_pkg, *data;
+ int ret = -ENOENT;
+ int tbl_rev;
+
+ data = iwl_acpi_get_object(fwrt->dev, ACPI_DSBR_METHOD);
+ if (IS_ERR(data))
+ return ret;
+
+ wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+ ACPI_DSBR_WIFI_DATA_SIZE,
+ &tbl_rev);
+ if (IS_ERR(wifi_pkg))
+ goto out_free;
+
+ if (tbl_rev != ACPI_DSBR_WIFI_DATA_REV) {
+ IWL_DEBUG_RADIO(fwrt, "Unsupported ACPI DSBR revision:%d\n",
+ tbl_rev);
+ goto out_free;
+ }
+
+ if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
+ goto out_free;
+
+ *value = wifi_pkg->package.elements[1].integer.value;
+ IWL_DEBUG_RADIO(fwrt, "Loaded DSBR config from ACPI value: 0x%x\n",
+ *value);
+ ret = 0;
+out_free:
+ kfree(data);
+ return ret;
+}