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path: root/drivers/usb/otg
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Diffstat (limited to 'drivers/usb/otg')
-rw-r--r--drivers/usb/otg/ulpi.c127
1 files changed, 117 insertions, 10 deletions
diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c
index ef7dbe40f111..ccc81950822b 100644
--- a/drivers/usb/otg/ulpi.c
+++ b/drivers/usb/otg/ulpi.c
@@ -37,25 +37,106 @@ static unsigned int ulpi_ids[] = {
ULPI_ID(0x0424, 0x0006), /* SMSC USB3319 */
};
-static int ulpi_set_flags(struct otg_transceiver *otg)
+static int ulpi_set_otg_flags(struct otg_transceiver *otg)
{
- unsigned int flags = 0;
+ unsigned int flags = ULPI_OTG_CTRL_DP_PULLDOWN |
+ ULPI_OTG_CTRL_DM_PULLDOWN;
- if (otg->flags & USB_OTG_PULLUP_ID)
+ if (otg->flags & ULPI_OTG_ID_PULLUP)
flags |= ULPI_OTG_CTRL_ID_PULLUP;
- if (otg->flags & USB_OTG_PULLDOWN_DM)
- flags |= ULPI_OTG_CTRL_DM_PULLDOWN;
+ /*
+ * ULPI Specification rev.1.1 default
+ * for Dp/DmPulldown is enabled.
+ */
+ if (otg->flags & ULPI_OTG_DP_PULLDOWN_DIS)
+ flags &= ~ULPI_OTG_CTRL_DP_PULLDOWN;
- if (otg->flags & USB_OTG_PULLDOWN_DP)
- flags |= ULPI_OTG_CTRL_DP_PULLDOWN;
+ if (otg->flags & ULPI_OTG_DM_PULLDOWN_DIS)
+ flags &= ~ULPI_OTG_CTRL_DM_PULLDOWN;
- if (otg->flags & USB_OTG_EXT_VBUS_INDICATOR)
+ if (otg->flags & ULPI_OTG_EXTVBUSIND)
flags |= ULPI_OTG_CTRL_EXTVBUSIND;
return otg_io_write(otg, flags, ULPI_OTG_CTRL);
}
+static int ulpi_set_fc_flags(struct otg_transceiver *otg)
+{
+ unsigned int flags = 0;
+
+ /*
+ * ULPI Specification rev.1.1 default
+ * for XcvrSelect is Full Speed.
+ */
+ if (otg->flags & ULPI_FC_HS)
+ flags |= ULPI_FUNC_CTRL_HIGH_SPEED;
+ else if (otg->flags & ULPI_FC_LS)
+ flags |= ULPI_FUNC_CTRL_LOW_SPEED;
+ else if (otg->flags & ULPI_FC_FS4LS)
+ flags |= ULPI_FUNC_CTRL_FS4LS;
+ else
+ flags |= ULPI_FUNC_CTRL_FULL_SPEED;
+
+ if (otg->flags & ULPI_FC_TERMSEL)
+ flags |= ULPI_FUNC_CTRL_TERMSELECT;
+
+ /*
+ * ULPI Specification rev.1.1 default
+ * for OpMode is Normal Operation.
+ */
+ if (otg->flags & ULPI_FC_OP_NODRV)
+ flags |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
+ else if (otg->flags & ULPI_FC_OP_DIS_NRZI)
+ flags |= ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI;
+ else if (otg->flags & ULPI_FC_OP_NSYNC_NEOP)
+ flags |= ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP;
+ else
+ flags |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
+
+ /*
+ * ULPI Specification rev.1.1 default
+ * for SuspendM is Powered.
+ */
+ flags |= ULPI_FUNC_CTRL_SUSPENDM;
+
+ return otg_io_write(otg, flags, ULPI_FUNC_CTRL);
+}
+
+static int ulpi_set_ic_flags(struct otg_transceiver *otg)
+{
+ unsigned int flags = 0;
+
+ if (otg->flags & ULPI_IC_AUTORESUME)
+ flags |= ULPI_IFC_CTRL_AUTORESUME;
+
+ if (otg->flags & ULPI_IC_EXTVBUS_INDINV)
+ flags |= ULPI_IFC_CTRL_EXTERNAL_VBUS;
+
+ if (otg->flags & ULPI_IC_IND_PASSTHRU)
+ flags |= ULPI_IFC_CTRL_PASSTHRU;
+
+ if (otg->flags & ULPI_IC_PROTECT_DIS)
+ flags |= ULPI_IFC_CTRL_PROTECT_IFC_DISABLE;
+
+ return otg_io_write(otg, flags, ULPI_IFC_CTRL);
+}
+
+static int ulpi_set_flags(struct otg_transceiver *otg)
+{
+ int ret;
+
+ ret = ulpi_set_otg_flags(otg);
+ if (ret)
+ return ret;
+
+ ret = ulpi_set_ic_flags(otg);
+ if (ret)
+ return ret;
+
+ return ulpi_set_fc_flags(otg);
+}
+
static int ulpi_init(struct otg_transceiver *otg)
{
int i, vid, pid, ret;
@@ -80,6 +161,31 @@ static int ulpi_init(struct otg_transceiver *otg)
return -ENODEV;
}
+static int ulpi_set_host(struct otg_transceiver *otg, struct usb_bus *host)
+{
+ unsigned int flags = otg_io_read(otg, ULPI_IFC_CTRL);
+
+ if (!host) {
+ otg->host = NULL;
+ return 0;
+ }
+
+ otg->host = host;
+
+ flags &= ~(ULPI_IFC_CTRL_6_PIN_SERIAL_MODE |
+ ULPI_IFC_CTRL_3_PIN_SERIAL_MODE |
+ ULPI_IFC_CTRL_CARKITMODE);
+
+ if (otg->flags & ULPI_IC_6PIN_SERIAL)
+ flags |= ULPI_IFC_CTRL_6_PIN_SERIAL_MODE;
+ else if (otg->flags & ULPI_IC_3PIN_SERIAL)
+ flags |= ULPI_IFC_CTRL_3_PIN_SERIAL_MODE;
+ else if (otg->flags & ULPI_IC_CARKIT)
+ flags |= ULPI_IFC_CTRL_CARKITMODE;
+
+ return otg_io_write(otg, flags, ULPI_IFC_CTRL);
+}
+
static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
{
unsigned int flags = otg_io_read(otg, ULPI_OTG_CTRL);
@@ -87,10 +193,10 @@ static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
if (on) {
- if (otg->flags & USB_OTG_DRV_VBUS)
+ if (otg->flags & ULPI_OTG_DRVVBUS)
flags |= ULPI_OTG_CTRL_DRVVBUS;
- if (otg->flags & USB_OTG_DRV_VBUS_EXT)
+ if (otg->flags & ULPI_OTG_DRVVBUS_EXT)
flags |= ULPI_OTG_CTRL_DRVVBUS_EXT;
}
@@ -111,6 +217,7 @@ otg_ulpi_create(struct otg_io_access_ops *ops,
otg->flags = flags;
otg->io_ops = ops;
otg->init = ulpi_init;
+ otg->set_host = ulpi_set_host;
otg->set_vbus = ulpi_set_vbus;
return otg;