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usb: mtu3: Super-Speed Peripheral mode support

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add super-speed funtion for peripheral mode

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun
2016-10-19 10:28:24 +08:00
committed by Greg Kroah-Hartman
parent df2069acb0
commit a29de31b9e
5 changed files with 345 additions and 36 deletions
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45
drivers/usb/mtu3/mtu3_gadget.c
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@@ -73,6 +73,7 @@ static void nuke(struct mtu3_ep *mep, const int status)
static int mtu3_ep_enable(struct mtu3_ep *mep)
{
const struct usb_endpoint_descriptor *desc;
const struct usb_ss_ep_comp_descriptor *comp_desc;
struct mtu3 *mtu = mep->mtu;
u32 interval = 0;
u32 mult = 0;
@@ -81,11 +82,24 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
int ret;
desc = mep->desc;
comp_desc = mep->comp_desc;
mep->type = usb_endpoint_type(desc);
max_packet = usb_endpoint_maxp(desc);
mep->maxp = max_packet & GENMASK(10, 0);
switch (mtu->g.speed) {
case USB_SPEED_SUPER:
if (usb_endpoint_xfer_int(desc) ||
usb_endpoint_xfer_isoc(desc)) {
interval = desc->bInterval;
interval = clamp_val(interval, 1, 16) - 1;
if (usb_endpoint_xfer_isoc(desc) && comp_desc)
mult = comp_desc->bmAttributes;
}
if (comp_desc)
burst = comp_desc->bMaxBurst;
break;
case USB_SPEED_HIGH:
if (usb_endpoint_xfer_isoc(desc) ||
usb_endpoint_xfer_int(desc)) {
@@ -103,6 +117,7 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
mep->ep.maxpacket = mep->maxp;
mep->ep.desc = desc;
mep->ep.comp_desc = comp_desc;
/* slot mainly affects bulk/isoc transfer, so ignore int */
mep->slot = usb_endpoint_xfer_int(desc) ? 0 : mtu->slot;
@@ -135,6 +150,7 @@ static int mtu3_ep_disable(struct mtu3_ep *mep)
mep->desc = NULL;
mep->ep.desc = NULL;
mep->comp_desc = NULL;
mep->type = 0;
mep->flags = 0;
@@ -178,6 +194,7 @@ static int mtu3_gadget_ep_enable(struct usb_ep *ep,
spin_lock_irqsave(&mtu->lock, flags);
mep->desc = desc;
mep->comp_desc = ep->comp_desc;
ret = mtu3_ep_enable(mep);
if (ret)
@@ -439,13 +456,15 @@ static int mtu3_gadget_wakeup(struct usb_gadget *gadget)
return -EOPNOTSUPP;
spin_lock_irqsave(&mtu->lock, flags);
mtu3_setbits(mtu->mac_base, U3D_POWER_MANAGEMENT, RESUME);
spin_unlock_irqrestore(&mtu->lock, flags);
usleep_range(10000, 11000);
spin_lock_irqsave(&mtu->lock, flags);
mtu3_clrbits(mtu->mac_base, U3D_POWER_MANAGEMENT, RESUME);
if (mtu->g.speed == USB_SPEED_SUPER) {
mtu3_setbits(mtu->mac_base, U3D_LINK_POWER_CONTROL, UX_EXIT);
} else {
mtu3_setbits(mtu->mac_base, U3D_POWER_MANAGEMENT, RESUME);
spin_unlock_irqrestore(&mtu->lock, flags);
usleep_range(10000, 11000);
spin_lock_irqsave(&mtu->lock, flags);
mtu3_clrbits(mtu->mac_base, U3D_POWER_MANAGEMENT, RESUME);
}
spin_unlock_irqrestore(&mtu->lock, flags);
return 0;
}
@@ -476,7 +495,7 @@ static int mtu3_gadget_pullup(struct usb_gadget *gadget, int is_on)
mtu->softconnect = is_on;
} else if (is_on != mtu->softconnect) {
mtu->softconnect = is_on;
mtu3_hs_softconn_set(mtu, is_on);
mtu3_dev_on_off(mtu, is_on);
}
spin_unlock_irqrestore(&mtu->lock, flags);
@@ -524,7 +543,7 @@ static void stop_activity(struct mtu3 *mtu)
/* deactivate the hardware */
if (mtu->softconnect) {
mtu->softconnect = 0;
mtu3_hs_softconn_set(mtu, 0);
mtu3_dev_on_off(mtu, 0);
}
/*
@@ -587,14 +606,14 @@ static void init_hw_ep(struct mtu3 *mtu, struct mtu3_ep *mep,
mep->ep.name = mep->name;
INIT_LIST_HEAD(&mep->ep.ep_list);
/* initialize maxpacket as HS */
/* initialize maxpacket as SS */
if (!epnum) {
usb_ep_set_maxpacket_limit(&mep->ep, 64);
usb_ep_set_maxpacket_limit(&mep->ep, 512);
mep->ep.caps.type_control = true;
mep->ep.ops = &mtu3_ep0_ops;
mtu->g.ep0 = &mep->ep;
} else {
usb_ep_set_maxpacket_limit(&mep->ep, 512);
usb_ep_set_maxpacket_limit(&mep->ep, 1024);
mep->ep.caps.type_iso = true;
mep->ep.caps.type_bulk = true;
mep->ep.caps.type_int = true;
@@ -637,7 +656,7 @@ int mtu3_gadget_setup(struct mtu3 *mtu)
int ret;
mtu->g.ops = &mtu3_gadget_ops;
mtu->g.max_speed = USB_SPEED_HIGH;
mtu->g.max_speed = mtu->max_speed;
mtu->g.speed = USB_SPEED_UNKNOWN;
mtu->g.sg_supported = 0;
mtu->g.name = MTU3_DRIVER_NAME;