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path: root/drivers/usb/renesas_usbhs/common.c
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Diffstat (limited to 'drivers/usb/renesas_usbhs/common.c')
-rw-r--r--drivers/usb/renesas_usbhs/common.c236
1 files changed, 211 insertions, 25 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index d8239e5efa66..d2e2efaba658 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -61,8 +61,8 @@
*/
#define usbhs_platform_call(priv, func, args...)\
(!(priv) ? -ENODEV : \
- !((priv)->pfunc->func) ? 0 : \
- (priv)->pfunc->func(args))
+ !((priv)->pfunc.func) ? 0 : \
+ (priv)->pfunc.func(args))
/*
* common functions
@@ -114,6 +114,10 @@ void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
{
u16 mask = DCFM | DRPD | DPRPU;
u16 val = DCFM | DRPD;
+ int has_otg = usbhs_get_dparam(priv, has_otg);
+
+ if (has_otg)
+ usbhs_bset(priv, DVSTCTR, (EXTLP | PWEN), (EXTLP | PWEN));
/*
* if enable
@@ -147,19 +151,133 @@ int usbhs_frame_get_num(struct usbhs_priv *priv)
}
/*
+ * usb request functions
+ */
+void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
+{
+ u16 val;
+
+ val = usbhs_read(priv, USBREQ);
+ req->bRequest = (val >> 8) & 0xFF;
+ req->bRequestType = (val >> 0) & 0xFF;
+
+ req->wValue = usbhs_read(priv, USBVAL);
+ req->wIndex = usbhs_read(priv, USBINDX);
+ req->wLength = usbhs_read(priv, USBLENG);
+}
+
+void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
+{
+ usbhs_write(priv, USBREQ, (req->bRequest << 8) | req->bRequestType);
+ usbhs_write(priv, USBVAL, req->wValue);
+ usbhs_write(priv, USBINDX, req->wIndex);
+ usbhs_write(priv, USBLENG, req->wLength);
+
+ usbhs_bset(priv, DCPCTR, SUREQ, SUREQ);
+}
+
+/*
+ * bus/vbus functions
+ */
+void usbhs_bus_send_sof_enable(struct usbhs_priv *priv)
+{
+ u16 status = usbhs_read(priv, DVSTCTR) & (USBRST | UACT);
+
+ if (status != USBRST) {
+ struct device *dev = usbhs_priv_to_dev(priv);
+ dev_err(dev, "usbhs should be reset\n");
+ }
+
+ usbhs_bset(priv, DVSTCTR, (USBRST | UACT), UACT);
+}
+
+void usbhs_bus_send_reset(struct usbhs_priv *priv)
+{
+ usbhs_bset(priv, DVSTCTR, (USBRST | UACT), USBRST);
+}
+
+int usbhs_bus_get_speed(struct usbhs_priv *priv)
+{
+ u16 dvstctr = usbhs_read(priv, DVSTCTR);
+
+ switch (RHST & dvstctr) {
+ case RHST_LOW_SPEED:
+ return USB_SPEED_LOW;
+ case RHST_FULL_SPEED:
+ return USB_SPEED_FULL;
+ case RHST_HIGH_SPEED:
+ return USB_SPEED_HIGH;
+ }
+
+ return USB_SPEED_UNKNOWN;
+}
+
+int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable)
+{
+ struct platform_device *pdev = usbhs_priv_to_pdev(priv);
+
+ return usbhs_platform_call(priv, set_vbus, pdev, enable);
+}
+
+static void usbhsc_bus_init(struct usbhs_priv *priv)
+{
+ usbhs_write(priv, DVSTCTR, 0);
+
+ usbhs_vbus_ctrl(priv, 0);
+}
+
+/*
+ * device configuration
+ */
+int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum,
+ u16 upphub, u16 hubport, u16 speed)
+{
+ struct device *dev = usbhs_priv_to_dev(priv);
+ u16 usbspd = 0;
+ u32 reg = DEVADD0 + (2 * devnum);
+
+ if (devnum > 10) {
+ dev_err(dev, "cannot set speed to unknown device %d\n", devnum);
+ return -EIO;
+ }
+
+ if (upphub > 0xA) {
+ dev_err(dev, "unsupported hub number %d\n", upphub);
+ return -EIO;
+ }
+
+ switch (speed) {
+ case USB_SPEED_LOW:
+ usbspd = USBSPD_SPEED_LOW;
+ break;
+ case USB_SPEED_FULL:
+ usbspd = USBSPD_SPEED_FULL;
+ break;
+ case USB_SPEED_HIGH:
+ usbspd = USBSPD_SPEED_HIGH;
+ break;
+ default:
+ dev_err(dev, "unsupported speed %d\n", speed);
+ return -EIO;
+ }
+
+ usbhs_write(priv, reg, UPPHUB(upphub) |
+ HUBPORT(hubport)|
+ USBSPD(usbspd));
+
+ return 0;
+}
+
+/*
* local functions
*/
-static void usbhsc_bus_ctrl(struct usbhs_priv *priv, int enable)
+static void usbhsc_set_buswait(struct usbhs_priv *priv)
{
int wait = usbhs_get_dparam(priv, buswait_bwait);
- u16 data = 0;
- if (enable) {
- /* set bus wait if platform have */
- if (wait)
- usbhs_bset(priv, BUSWAIT, 0x000F, wait);
- }
- usbhs_write(priv, DVSTCTR, data);
+ /* set bus wait if platform have */
+ if (wait)
+ usbhs_bset(priv, BUSWAIT, 0x000F, wait);
}
/*
@@ -191,10 +309,8 @@ static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
/* USB on */
usbhs_sys_clock_ctrl(priv, enable);
- usbhsc_bus_ctrl(priv, enable);
} else {
/* USB off */
- usbhsc_bus_ctrl(priv, enable);
usbhs_sys_clock_ctrl(priv, enable);
/* disable PM */
@@ -203,13 +319,10 @@ static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
}
/*
- * notify hotplug
+ * hotplug
*/
-static void usbhsc_notify_hotplug(struct work_struct *work)
+static void usbhsc_hotplug(struct usbhs_priv *priv)
{
- struct usbhs_priv *priv = container_of(work,
- struct usbhs_priv,
- notify_hotplug_work.work);
struct platform_device *pdev = usbhs_priv_to_pdev(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
int id;
@@ -237,6 +350,10 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
usbhsc_power_ctrl(priv, enable);
+ /* bus init */
+ usbhsc_set_buswait(priv);
+ usbhsc_bus_init(priv);
+
/* module start */
usbhs_mod_call(priv, start, priv);
@@ -246,6 +363,9 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
/* module stop */
usbhs_mod_call(priv, stop, priv);
+ /* bus init */
+ usbhsc_bus_init(priv);
+
/* power off */
if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
usbhsc_power_ctrl(priv, enable);
@@ -257,6 +377,17 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
}
}
+/*
+ * notify hotplug
+ */
+static void usbhsc_notify_hotplug(struct work_struct *work)
+{
+ struct usbhs_priv *priv = container_of(work,
+ struct usbhs_priv,
+ notify_hotplug_work.work);
+ usbhsc_hotplug(priv);
+}
+
int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
{
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
@@ -315,24 +446,28 @@ static int __devinit usbhs_probe(struct platform_device *pdev)
/*
* care platform info
*/
- priv->pfunc = &info->platform_callback;
- priv->dparam = &info->driver_param;
+ memcpy(&priv->pfunc,
+ &info->platform_callback,
+ sizeof(struct renesas_usbhs_platform_callback));
+ memcpy(&priv->dparam,
+ &info->driver_param,
+ sizeof(struct renesas_usbhs_driver_param));
/* set driver callback functions for platform */
dfunc = &info->driver_callback;
dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug;
/* set default param if platform doesn't have */
- if (!priv->dparam->pipe_type) {
- priv->dparam->pipe_type = usbhsc_default_pipe_type;
- priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
+ if (!priv->dparam.pipe_type) {
+ priv->dparam.pipe_type = usbhsc_default_pipe_type;
+ priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
}
- if (!priv->dparam->pio_dma_border)
- priv->dparam->pio_dma_border = 64; /* 64byte */
+ if (!priv->dparam.pio_dma_border)
+ priv->dparam.pio_dma_border = 64; /* 64byte */
/* FIXME */
/* runtime power control ? */
- if (priv->pfunc->get_vbus)
+ if (priv->pfunc.get_vbus)
usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL);
/*
@@ -443,9 +578,60 @@ static int __devexit usbhs_remove(struct platform_device *pdev)
return 0;
}
+static int usbhsc_suspend(struct device *dev)
+{
+ struct usbhs_priv *priv = dev_get_drvdata(dev);
+ struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+
+ if (mod) {
+ usbhs_mod_call(priv, stop, priv);
+ usbhs_mod_change(priv, -1);
+ }
+
+ if (mod || !usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
+ usbhsc_power_ctrl(priv, 0);
+
+ return 0;
+}
+
+static int usbhsc_resume(struct device *dev)
+{
+ struct usbhs_priv *priv = dev_get_drvdata(dev);
+ struct platform_device *pdev = usbhs_priv_to_pdev(priv);
+
+ usbhs_platform_call(priv, phy_reset, pdev);
+
+ if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
+ usbhsc_power_ctrl(priv, 1);
+
+ usbhsc_hotplug(priv);
+
+ return 0;
+}
+
+static int usbhsc_runtime_nop(struct device *dev)
+{
+ /* Runtime PM callback shared between ->runtime_suspend()
+ * and ->runtime_resume(). Simply returns success.
+ *
+ * This driver re-initializes all registers after
+ * pm_runtime_get_sync() anyway so there is no need
+ * to save and restore registers here.
+ */
+ return 0;
+}
+
+static const struct dev_pm_ops usbhsc_pm_ops = {
+ .suspend = usbhsc_suspend,
+ .resume = usbhsc_resume,
+ .runtime_suspend = usbhsc_runtime_nop,
+ .runtime_resume = usbhsc_runtime_nop,
+};
+
static struct platform_driver renesas_usbhs_driver = {
.driver = {
.name = "renesas_usbhs",
+ .pm = &usbhsc_pm_ops,
},
.probe = usbhs_probe,
.remove = __devexit_p(usbhs_remove),
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-23 07:35:13 +0300