#include <linux/interrupt.h>
#include <linux/bcma/bcma.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/kthread.h>
#include <linux/io.h>
#include <asm/unaligned.h>
u16 value);
struct brcmf_mp_device *settings;
struct brcmf_otp_params otp;
+#ifdef DEBUG
+ u32 console_interval;
+ bool console_active;
+ struct timer_list timer;
+#endif
};
struct brcmf_pcie_ringbuf {
struct brcmf_fw_request *fwreq);
static struct brcmf_fw_request *
brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo);
+static void
+brcmf_pcie_fwcon_timer(struct brcmf_pciedev_info *devinfo, bool active);
+static void brcmf_pcie_debugfs_create(struct device *dev);
static u16
brcmf_pcie_read_reg16(struct brcmf_pciedev_info *devinfo, u32 reg_offset)
static void brcmf_pcie_down(struct device *dev)
{
+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+ struct brcmf_pciedev *pcie_bus_dev = bus_if->bus_priv.pcie;
+ struct brcmf_pciedev_info *devinfo = pcie_bus_dev->devinfo;
+
+ brcmf_pcie_fwcon_timer(devinfo, false);
}
static int brcmf_pcie_preinit(struct device *dev)
.get_memdump = brcmf_pcie_get_memdump,
.get_blob = brcmf_pcie_get_blob,
.reset = brcmf_pcie_reset,
+ .debugfs_create = brcmf_pcie_debugfs_create,
};
brcmf_pcie_bus_console_read(devinfo, false);
+ brcmf_pcie_fwcon_timer(devinfo, true);
+
return;
fail:
return fwreq;
}
+#ifdef DEBUG
+static void
+brcmf_pcie_fwcon_timer(struct brcmf_pciedev_info *devinfo, bool active)
+{
+ if (!active) {
+ if (devinfo->console_active) {
+ del_timer_sync(&devinfo->timer);
+ devinfo->console_active = false;
+ }
+ return;
+ }
+
+ /* don't start the timer */
+ if (devinfo->state != BRCMFMAC_PCIE_STATE_UP ||
+ !devinfo->console_interval || !BRCMF_FWCON_ON())
+ return;
+
+ if (!devinfo->console_active) {
+ devinfo->timer.expires = jiffies + devinfo->console_interval;
+ add_timer(&devinfo->timer);
+ devinfo->console_active = true;
+ } else {
+ /* Reschedule the timer */
+ mod_timer(&devinfo->timer, jiffies + devinfo->console_interval);
+ }
+}
+
+static void
+brcmf_pcie_fwcon(struct timer_list *t)
+{
+ struct brcmf_pciedev_info *devinfo = from_timer(devinfo, t, timer);
+
+ if (!devinfo->console_active)
+ return;
+
+ brcmf_pcie_bus_console_read(devinfo, false);
+
+ /* Reschedule the timer if console interval is not zero */
+ mod_timer(&devinfo->timer, jiffies + devinfo->console_interval);
+}
+
+static int brcmf_pcie_console_interval_get(void *data, u64 *val)
+{
+ struct brcmf_pciedev_info *devinfo = data;
+
+ *val = devinfo->console_interval;
+
+ return 0;
+}
+
+static int brcmf_pcie_console_interval_set(void *data, u64 val)
+{
+ struct brcmf_pciedev_info *devinfo = data;
+
+ if (val > MAX_CONSOLE_INTERVAL)
+ return -EINVAL;
+
+ devinfo->console_interval = val;
+
+ if (!val && devinfo->console_active)
+ brcmf_pcie_fwcon_timer(devinfo, false);
+ else if (val)
+ brcmf_pcie_fwcon_timer(devinfo, true);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(brcmf_pcie_console_interval_fops,
+ brcmf_pcie_console_interval_get,
+ brcmf_pcie_console_interval_set,
+ "%llu\n");
+
+static void brcmf_pcie_debugfs_create(struct device *dev)
+{
+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+ struct brcmf_pub *drvr = bus_if->drvr;
+ struct brcmf_pciedev *pcie_bus_dev = bus_if->bus_priv.pcie;
+ struct brcmf_pciedev_info *devinfo = pcie_bus_dev->devinfo;
+ struct dentry *dentry = brcmf_debugfs_get_devdir(drvr);
+
+ if (IS_ERR_OR_NULL(dentry))
+ return;
+
+ devinfo->console_interval = BRCMF_CONSOLE;
+
+ debugfs_create_file("console_interval", 0644, dentry, devinfo,
+ &brcmf_pcie_console_interval_fops);
+}
+
+#else
+void brcmf_pcie_fwcon_timer(struct brcmf_pciedev_info *devinfo, bool active)
+{
+}
+
+static void brcmf_pcie_debugfs_create(struct device *dev)
+{
+}
+#endif
+
static int
brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
goto fail_brcmf;
}
+#ifdef DEBUG
+ /* Set up the fwcon timer */
+ timer_setup(&devinfo->timer, brcmf_pcie_fwcon, 0);
+#endif
+
fwreq = brcmf_pcie_prepare_fw_request(devinfo);
if (!fwreq) {
ret = -ENOMEM;
devinfo = bus->bus_priv.pcie->devinfo;
brcmf_pcie_bus_console_read(devinfo, false);
+ brcmf_pcie_fwcon_timer(devinfo, false);
devinfo->state = BRCMFMAC_PCIE_STATE_DOWN;
if (devinfo->ci)
bus = dev_get_drvdata(dev);
devinfo = bus->bus_priv.pcie->devinfo;
+ brcmf_pcie_fwcon_timer(devinfo, false);
brcmf_bus_change_state(bus, BRCMF_BUS_DOWN);
devinfo->mbdata_completed = false;
brcmf_bus_change_state(bus, BRCMF_BUS_UP);
brcmf_pcie_intr_enable(devinfo);
brcmf_pcie_hostready(devinfo);
+ brcmf_pcie_fwcon_timer(devinfo, true);
return 0;
}