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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.c98
1 files changed, 66 insertions, 32 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index b38515fc7ce7..d571feb2370e 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
+ * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -26,6 +26,10 @@ static bool use_msi = true;
module_param(use_msi, bool, 0444);
MODULE_PARM_DESC(use_msi, " Use MSI interrupt, default - true");
+static bool ftm_mode;
+module_param(ftm_mode, bool, 0444);
+MODULE_PARM_DESC(ftm_mode, " Set factory test mode, default - false");
+
#ifdef CONFIG_PM
#ifdef CONFIG_PM_SLEEP
static int wil6210_pm_notify(struct notifier_block *notify_block,
@@ -36,13 +40,15 @@ static int wil6210_pm_notify(struct notifier_block *notify_block,
static
void wil_set_capabilities(struct wil6210_priv *wil)
{
+ const char *wil_fw_name;
u32 jtag_id = wil_r(wil, RGF_USER_JTAG_DEV_ID);
u8 chip_revision = (wil_r(wil, RGF_USER_REVISION_ID) &
RGF_USER_REVISION_ID_MASK);
bitmap_zero(wil->hw_capabilities, hw_capability_last);
bitmap_zero(wil->fw_capabilities, WMI_FW_CAPABILITY_MAX);
- wil->wil_fw_name = WIL_FW_NAME_DEFAULT;
+ wil->wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_DEFAULT :
+ WIL_FW_NAME_DEFAULT;
wil->chip_revision = chip_revision;
switch (jtag_id) {
@@ -51,9 +57,11 @@ void wil_set_capabilities(struct wil6210_priv *wil)
case REVISION_ID_SPARROW_D0:
wil->hw_name = "Sparrow D0";
wil->hw_version = HW_VER_SPARROW_D0;
- if (wil_fw_verify_file_exists(wil,
- WIL_FW_NAME_SPARROW_PLUS))
- wil->wil_fw_name = WIL_FW_NAME_SPARROW_PLUS;
+ wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_SPARROW_PLUS :
+ WIL_FW_NAME_SPARROW_PLUS;
+
+ if (wil_fw_verify_file_exists(wil, wil_fw_name))
+ wil->wil_fw_name = wil_fw_name;
break;
case REVISION_ID_SPARROW_B0:
wil->hw_name = "Sparrow B0";
@@ -104,8 +112,6 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil)
wil_dbg_misc(wil, "if_pcie_enable, wmi_only %d\n", wmi_only);
- pdev->msi_enabled = 0;
-
pci_set_master(pdev);
wil_dbg_misc(wil, "Setup %s interrupt\n", use_msi ? "MSI" : "INTx");
@@ -183,6 +189,13 @@ static int wil_platform_rop_fw_recovery(void *wil_handle)
return 0;
}
+static void wil_platform_ops_uninit(struct wil6210_priv *wil)
+{
+ if (wil->platform_ops.uninit)
+ wil->platform_ops.uninit(wil->platform_handle);
+ memset(&wil->platform_ops, 0, sizeof(wil->platform_ops));
+}
+
static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct wil6210_priv *wil;
@@ -192,16 +205,18 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
.ramdump = wil_platform_rop_ramdump,
.fw_recovery = wil_platform_rop_fw_recovery,
};
+ u32 bar_size = pci_resource_len(pdev, 0);
/* check HW */
dev_info(&pdev->dev, WIL_NAME
- " device found [%04x:%04x] (rev %x)\n",
- (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
-
- if (pci_resource_len(pdev, 0) != WIL6210_MEM_SIZE) {
- dev_err(&pdev->dev, "Not " WIL_NAME "? "
- "BAR0 size is %lu while expecting %lu\n",
- (ulong)pci_resource_len(pdev, 0), WIL6210_MEM_SIZE);
+ " device found [%04x:%04x] (rev %x) bar size 0x%x\n",
+ (int)pdev->vendor, (int)pdev->device, (int)pdev->revision,
+ bar_size);
+
+ if ((bar_size < WIL6210_MIN_MEM_SIZE) ||
+ (bar_size > WIL6210_MAX_MEM_SIZE)) {
+ dev_err(&pdev->dev, "Unexpected BAR0 size 0x%x\n",
+ bar_size);
return -ENODEV;
}
@@ -214,6 +229,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
wil->pdev = pdev;
pci_set_drvdata(pdev, wil);
+ wil->bar_size = bar_size;
/* rollback to if_free */
wil->platform_handle =
@@ -241,7 +257,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
rc = pci_enable_device(pdev);
- if (rc) {
+ if (rc && pdev->msi_enabled == 0) {
wil_err(wil,
"pci_enable_device failed, retry with MSI only\n");
/* Work around for platforms that can't allocate IRQ:
@@ -256,6 +272,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err_plat;
}
/* rollback to err_disable_pdev */
+ pci_set_power_state(pdev, PCI_D0);
rc = pci_request_region(pdev, 0, WIL_NAME);
if (rc) {
@@ -276,6 +293,15 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
wil_set_capabilities(wil);
wil6210_clear_irq(wil);
+ wil->keep_radio_on_during_sleep =
+ wil->platform_ops.keep_radio_on_during_sleep &&
+ wil->platform_ops.keep_radio_on_during_sleep(
+ wil->platform_handle) &&
+ test_bit(WMI_FW_CAPABILITY_D3_SUSPEND, wil->fw_capabilities);
+
+ wil_info(wil, "keep_radio_on_during_sleep (%d)\n",
+ wil->keep_radio_on_during_sleep);
+
/* FW should raise IRQ when ready */
rc = wil_if_pcie_enable(wil);
if (rc) {
@@ -316,8 +342,7 @@ err_release_reg:
err_disable_pdev:
pci_disable_device(pdev);
err_plat:
- if (wil->platform_ops.uninit)
- wil->platform_ops.uninit(wil->platform_handle);
+ wil_platform_ops_uninit(wil);
if_free:
wil_if_free(wil);
@@ -346,8 +371,7 @@ static void wil_pcie_remove(struct pci_dev *pdev)
pci_iounmap(pdev, csr);
pci_release_region(pdev, 0);
pci_disable_device(pdev);
- if (wil->platform_ops.uninit)
- wil->platform_ops.uninit(wil->platform_handle);
+ wil_platform_ops_uninit(wil);
wil_if_free(wil);
}
@@ -374,15 +398,16 @@ static int wil6210_suspend(struct device *dev, bool is_runtime)
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) */
+ if (!rc) {
+ wil->suspend_stats.successful_suspends++;
+ /* If platform device supports keep_radio_on_during_sleep
+ * it will control PCIe master
+ */
+ if (!wil->keep_radio_on_during_sleep)
+ /* disable bus mastering */
+ pci_clear_master(pdev);
+ }
out:
return rc;
}
@@ -395,12 +420,21 @@ static int wil6210_resume(struct device *dev, bool is_runtime)
wil_dbg_pm(wil, "resume: %s\n", is_runtime ? "runtime" : "system");
- /* allow master */
- pci_set_master(pdev);
-
+ /* If platform device supports keep_radio_on_during_sleep it will
+ * control PCIe master
+ */
+ if (!wil->keep_radio_on_during_sleep)
+ /* allow master */
+ pci_set_master(pdev);
rc = wil_resume(wil, is_runtime);
- if (rc)
- pci_clear_master(pdev);
+ if (rc) {
+ wil_err(wil, "device failed to resume (%d)\n", rc);
+ wil->suspend_stats.failed_resumes++;
+ if (!wil->keep_radio_on_during_sleep)
+ pci_clear_master(pdev);
+ } else {
+ wil->suspend_stats.successful_resumes++;
+ }
return rc;
}