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path: root/drivers/net/wireless/ath/wil6210/pcie_bus.c
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Diffstat (limited to 'drivers/net/wireless/ath/wil6210/pcie_bus.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/pcie_bus.c127
1 files changed, 81 insertions, 46 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index aa3ecc607ca3..feff1ef10fb3 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -21,16 +21,14 @@
#include "wil6210.h"
-static int use_msi = 1;
-module_param(use_msi, int, S_IRUGO);
-MODULE_PARM_DESC(use_msi,
- " Use MSI interrupt: "
- "0 - don't, 1 - (default) - single, or 3");
+static bool use_msi = true;
+module_param(use_msi, bool, S_IRUGO);
+MODULE_PARM_DESC(use_msi, " Use MSI interrupt, default - true");
static
void wil_set_capabilities(struct wil6210_priv *wil)
{
- u32 rev_id = ioread32(wil->csr + HOSTADDR(RGF_USER_JTAG_DEV_ID));
+ u32 rev_id = wil_r(wil, RGF_USER_JTAG_DEV_ID);
bitmap_zero(wil->hw_capabilities, hw_capability_last);
@@ -50,24 +48,12 @@ void wil_set_capabilities(struct wil6210_priv *wil)
void wil_disable_irq(struct wil6210_priv *wil)
{
- int irq = wil->pdev->irq;
-
- disable_irq(irq);
- if (wil->n_msi == 3) {
- disable_irq(irq + 1);
- disable_irq(irq + 2);
- }
+ disable_irq(wil->pdev->irq);
}
void wil_enable_irq(struct wil6210_priv *wil)
{
- int irq = wil->pdev->irq;
-
- enable_irq(irq);
- if (wil->n_msi == 3) {
- enable_irq(irq + 1);
- enable_irq(irq + 2);
- }
+ enable_irq(wil->pdev->irq);
}
/* Bus ops */
@@ -80,6 +66,7 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil)
* and only MSI should be used
*/
int msi_only = pdev->msi_enabled;
+ bool _use_msi = use_msi;
wil_dbg_misc(wil, "%s()\n", __func__);
@@ -87,41 +74,20 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil)
pci_set_master(pdev);
- /*
- * how many MSI interrupts to request?
- */
- switch (use_msi) {
- case 3:
- case 1:
- wil_dbg_misc(wil, "Setup %d MSI interrupts\n", use_msi);
- break;
- case 0:
- wil_dbg_misc(wil, "MSI interrupts disabled, use INTx\n");
- break;
- default:
- wil_err(wil, "Invalid use_msi=%d, default to 1\n", use_msi);
- use_msi = 1;
- }
-
- if (use_msi == 3 && pci_enable_msi_range(pdev, 3, 3) < 0) {
- wil_err(wil, "3 MSI mode failed, try 1 MSI\n");
- use_msi = 1;
- }
+ wil_dbg_misc(wil, "Setup %s interrupt\n", use_msi ? "MSI" : "INTx");
- if (use_msi == 1 && pci_enable_msi(pdev)) {
+ if (use_msi && pci_enable_msi(pdev)) {
wil_err(wil, "pci_enable_msi failed, use INTx\n");
- use_msi = 0;
+ _use_msi = false;
}
- wil->n_msi = use_msi;
-
- if ((wil->n_msi == 0) && msi_only) {
+ if (!_use_msi && msi_only) {
wil_err(wil, "Interrupt pin not routed, unable to use INTx\n");
rc = -ENODEV;
goto stop_master;
}
- rc = wil6210_init_irq(wil, pdev->irq);
+ rc = wil6210_init_irq(wil, pdev->irq, _use_msi);
if (rc)
goto stop_master;
@@ -293,11 +259,80 @@ static const struct pci_device_id wil6210_pcie_ids[] = {
};
MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids);
+#ifdef CONFIG_PM
+
+static int wil6210_suspend(struct device *dev, bool is_runtime)
+{
+ int rc = 0;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct wil6210_priv *wil = pci_get_drvdata(pdev);
+
+ wil_dbg_pm(wil, "%s(%s)\n", __func__,
+ is_runtime ? "runtime" : "system");
+
+ rc = wil_can_suspend(wil, is_runtime);
+ if (rc)
+ goto out;
+
+ rc = wil_suspend(wil, is_runtime);
+ if (rc)
+ goto out;
+
+ /* TODO: how do I bring card in low power state? */
+
+ /* disable bus mastering */
+ pci_clear_master(pdev);
+ /* PCI will call pci_save_state(pdev) and pci_prepare_to_sleep(pdev) */
+
+out:
+ return rc;
+}
+
+static int wil6210_resume(struct device *dev, bool is_runtime)
+{
+ int rc = 0;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct wil6210_priv *wil = pci_get_drvdata(pdev);
+
+ wil_dbg_pm(wil, "%s(%s)\n", __func__,
+ is_runtime ? "runtime" : "system");
+
+ /* allow master */
+ pci_set_master(pdev);
+
+ rc = wil_resume(wil, is_runtime);
+ if (rc)
+ pci_clear_master(pdev);
+
+ return rc;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int wil6210_pm_suspend(struct device *dev)
+{
+ return wil6210_suspend(dev, false);
+}
+
+static int wil6210_pm_resume(struct device *dev)
+{
+ return wil6210_resume(dev, false);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops wil6210_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(wil6210_pm_suspend, wil6210_pm_resume)
+};
+
static struct pci_driver wil6210_driver = {
.probe = wil_pcie_probe,
.remove = wil_pcie_remove,
.id_table = wil6210_pcie_ids,
.name = WIL_NAME,
+ .driver = {
+ .pm = &wil6210_pm_ops,
+ },
};
static int __init wil6210_driver_init(void)