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path: root/drivers/net/wireless/iwlwifi/pcie/drv.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/drv.c')
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/drv.c85
1 files changed, 84 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index 3872ead75488..edb015c99049 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -66,6 +66,7 @@
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pci-aspm.h>
+#include <linux/acpi.h>
#include "iwl-trans.h"
#include "iwl-drv.h"
@@ -389,12 +390,92 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
{IWL_PCI_DEVICE(0x095A, 0x5590, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095B, 0x5290, iwl7265_2ac_cfg)},
{IWL_PCI_DEVICE(0x095A, 0x5490, iwl7265_2ac_cfg)},
+
+/* 8000 Series */
+ {IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x24F4, 0x0030, iwl8260_2ac_cfg)},
#endif /* CONFIG_IWLMVM */
{0}
};
MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
+#ifdef CONFIG_ACPI
+#define SPL_METHOD "SPLC"
+#define SPL_DOMAINTYPE_MODULE BIT(0)
+#define SPL_DOMAINTYPE_WIFI BIT(1)
+#define SPL_DOMAINTYPE_WIGIG BIT(2)
+#define SPL_DOMAINTYPE_RFEM BIT(3)
+
+static u64 splx_get_pwr_limit(struct iwl_trans *trans, union acpi_object *splx)
+{
+ union acpi_object *limits, *domain_type, *power_limit;
+
+ if (splx->type != ACPI_TYPE_PACKAGE ||
+ splx->package.count != 2 ||
+ splx->package.elements[0].type != ACPI_TYPE_INTEGER ||
+ splx->package.elements[0].integer.value != 0) {
+ IWL_ERR(trans, "Unsupported splx structure");
+ return 0;
+ }
+
+ limits = &splx->package.elements[1];
+ if (limits->type != ACPI_TYPE_PACKAGE ||
+ limits->package.count < 2 ||
+ limits->package.elements[0].type != ACPI_TYPE_INTEGER ||
+ limits->package.elements[1].type != ACPI_TYPE_INTEGER) {
+ IWL_ERR(trans, "Invalid limits element");
+ return 0;
+ }
+
+ domain_type = &limits->package.elements[0];
+ power_limit = &limits->package.elements[1];
+ if (!(domain_type->integer.value & SPL_DOMAINTYPE_WIFI)) {
+ IWL_DEBUG_INFO(trans, "WiFi power is not limited");
+ return 0;
+ }
+
+ return power_limit->integer.value;
+}
+
+static void set_dflt_pwr_limit(struct iwl_trans *trans, struct pci_dev *pdev)
+{
+ acpi_handle pxsx_handle;
+ acpi_handle handle;
+ struct acpi_buffer splx = {ACPI_ALLOCATE_BUFFER, NULL};
+ acpi_status status;
+
+ pxsx_handle = ACPI_HANDLE(&pdev->dev);
+ if (!pxsx_handle) {
+ IWL_DEBUG_INFO(trans,
+ "Could not retrieve root port ACPI handle");
+ return;
+ }
+
+ /* Get the method's handle */
+ status = acpi_get_handle(pxsx_handle, (acpi_string)SPL_METHOD, &handle);
+ if (ACPI_FAILURE(status)) {
+ IWL_DEBUG_INFO(trans, "SPL method not found");
+ return;
+ }
+
+ /* Call SPLC with no arguments */
+ status = acpi_evaluate_object(handle, NULL, NULL, &splx);
+ if (ACPI_FAILURE(status)) {
+ IWL_ERR(trans, "SPLC invocation failed (0x%x)", status);
+ return;
+ }
+
+ trans->dflt_pwr_limit = splx_get_pwr_limit(trans, splx.pointer);
+ IWL_DEBUG_INFO(trans, "Default power limit set to %lld",
+ trans->dflt_pwr_limit);
+ kfree(splx.pointer);
+}
+
+#else /* CONFIG_ACPI */
+static void set_dflt_pwr_limit(struct iwl_trans *trans, struct pci_dev *pdev) {}
+#endif
+
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
@@ -419,6 +500,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_free_trans;
}
+ set_dflt_pwr_limit(iwl_trans, pdev);
+
/* register transport layer debugfs here */
ret = iwl_trans_dbgfs_register(iwl_trans, iwl_trans->dbgfs_dir);
if (ret)
@@ -477,7 +560,7 @@ static int iwl_pci_resume(struct device *device)
iwl_enable_rfkill_int(trans);
hw_rfkill = iwl_is_rfkill_set(trans);
- iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill);
+ iwl_trans_pcie_rf_kill(trans, hw_rfkill);
return 0;
}