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path: root/drivers/usb/usbip/vhci_hcd.c
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Diffstat (limited to 'drivers/usb/usbip/vhci_hcd.c')
-rw-r--r--drivers/usb/usbip/vhci_hcd.c605
1 files changed, 444 insertions, 161 deletions
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index 0585078638db..2c4b2fd40406 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -58,8 +58,7 @@ static const char driver_name[] = "vhci_hcd";
static const char driver_desc[] = "USB/IP Virtual Host Controller";
int vhci_num_controllers = VHCI_NR_HCS;
-
-struct platform_device **vhci_pdevs;
+struct vhci *vhcis;
static const char * const bit_desc[] = {
"CONNECTION", /*0*/
@@ -67,7 +66,7 @@ static const char * const bit_desc[] = {
"SUSPEND", /*2*/
"OVER_CURRENT", /*3*/
"RESET", /*4*/
- "R5", /*5*/
+ "L1", /*5*/
"R6", /*6*/
"R7", /*7*/
"POWER", /*8*/
@@ -83,7 +82,7 @@ static const char * const bit_desc[] = {
"C_SUSPEND", /*18*/
"C_OVER_CURRENT", /*19*/
"C_RESET", /*20*/
- "R21", /*21*/
+ "C_L1", /*21*/
"R22", /*22*/
"R23", /*23*/
"R24", /*24*/
@@ -96,10 +95,49 @@ static const char * const bit_desc[] = {
"R31", /*31*/
};
-static void dump_port_status_diff(u32 prev_status, u32 new_status)
+static const char * const bit_desc_ss[] = {
+ "CONNECTION", /*0*/
+ "ENABLE", /*1*/
+ "SUSPEND", /*2*/
+ "OVER_CURRENT", /*3*/
+ "RESET", /*4*/
+ "L1", /*5*/
+ "R6", /*6*/
+ "R7", /*7*/
+ "R8", /*8*/
+ "POWER", /*9*/
+ "HIGHSPEED", /*10*/
+ "PORT_TEST", /*11*/
+ "INDICATOR", /*12*/
+ "R13", /*13*/
+ "R14", /*14*/
+ "R15", /*15*/
+ "C_CONNECTION", /*16*/
+ "C_ENABLE", /*17*/
+ "C_SUSPEND", /*18*/
+ "C_OVER_CURRENT", /*19*/
+ "C_RESET", /*20*/
+ "C_BH_RESET", /*21*/
+ "C_LINK_STATE", /*22*/
+ "C_CONFIG_ERROR", /*23*/
+ "R24", /*24*/
+ "R25", /*25*/
+ "R26", /*26*/
+ "R27", /*27*/
+ "R28", /*28*/
+ "R29", /*29*/
+ "R30", /*30*/
+ "R31", /*31*/
+};
+
+static void dump_port_status_diff(u32 prev_status, u32 new_status, bool usb3)
{
int i = 0;
u32 bit = 1;
+ const char * const *desc = bit_desc;
+
+ if (usb3)
+ desc = bit_desc_ss;
pr_debug("status prev -> new: %08x -> %08x\n", prev_status, new_status);
while (bit) {
@@ -114,8 +152,12 @@ static void dump_port_status_diff(u32 prev_status, u32 new_status)
else
change = ' ';
- if (prev || new)
- pr_debug(" %c%s\n", change, bit_desc[i]);
+ if (prev || new) {
+ pr_debug(" %c%s\n", change, desc[i]);
+
+ if (bit == 1) /* USB_PORT_STAT_CONNECTION */
+ pr_debug(" %c%s\n", change, "USB_PORT_STAT_SPEED_5GBPS");
+ }
bit <<= 1;
i++;
}
@@ -124,7 +166,8 @@ static void dump_port_status_diff(u32 prev_status, u32 new_status)
void rh_port_connect(struct vhci_device *vdev, enum usb_device_speed speed)
{
- struct vhci_hcd *vhci = vdev_to_vhci(vdev);
+ struct vhci_hcd *vhci_hcd = vdev_to_vhci_hcd(vdev);
+ struct vhci *vhci = vhci_hcd->vhci;
int rhport = vdev->rhport;
u32 status;
unsigned long flags;
@@ -133,7 +176,7 @@ void rh_port_connect(struct vhci_device *vdev, enum usb_device_speed speed)
spin_lock_irqsave(&vhci->lock, flags);
- status = vhci->port_status[rhport];
+ status = vhci_hcd->port_status[rhport];
status |= USB_PORT_STAT_CONNECTION | (1 << USB_PORT_FEAT_C_CONNECTION);
@@ -148,16 +191,17 @@ void rh_port_connect(struct vhci_device *vdev, enum usb_device_speed speed)
break;
}
- vhci->port_status[rhport] = status;
+ vhci_hcd->port_status[rhport] = status;
spin_unlock_irqrestore(&vhci->lock, flags);
- usb_hcd_poll_rh_status(vhci_to_hcd(vhci));
+ usb_hcd_poll_rh_status(vhci_hcd_to_hcd(vhci_hcd));
}
static void rh_port_disconnect(struct vhci_device *vdev)
{
- struct vhci_hcd *vhci = vdev_to_vhci(vdev);
+ struct vhci_hcd *vhci_hcd = vdev_to_vhci_hcd(vdev);
+ struct vhci *vhci = vhci_hcd->vhci;
int rhport = vdev->rhport;
u32 status;
unsigned long flags;
@@ -166,15 +210,15 @@ static void rh_port_disconnect(struct vhci_device *vdev)
spin_lock_irqsave(&vhci->lock, flags);
- status = vhci->port_status[rhport];
+ status = vhci_hcd->port_status[rhport];
status &= ~USB_PORT_STAT_CONNECTION;
status |= (1 << USB_PORT_FEAT_C_CONNECTION);
- vhci->port_status[rhport] = status;
+ vhci_hcd->port_status[rhport] = status;
spin_unlock_irqrestore(&vhci->lock, flags);
- usb_hcd_poll_rh_status(vhci_to_hcd(vhci));
+ usb_hcd_poll_rh_status(vhci_hcd_to_hcd(vhci_hcd));
}
#define PORT_C_MASK \
@@ -197,17 +241,15 @@ static void rh_port_disconnect(struct vhci_device *vdev)
*/
static int vhci_hub_status(struct usb_hcd *hcd, char *buf)
{
- struct vhci_hcd *vhci;
- int retval;
+ struct vhci_hcd *vhci_hcd = hcd_to_vhci_hcd(hcd);
+ struct vhci *vhci = vhci_hcd->vhci;
+ int retval = DIV_ROUND_UP(VHCI_HC_PORTS + 1, 8);
int rhport;
int changed = 0;
unsigned long flags;
- retval = DIV_ROUND_UP(VHCI_HC_PORTS + 1, 8);
memset(buf, 0, retval);
- vhci = hcd_to_vhci(hcd);
-
spin_lock_irqsave(&vhci->lock, flags);
if (!HCD_HW_ACCESSIBLE(hcd)) {
usbip_dbg_vhci_rh("hw accessible flag not on?\n");
@@ -216,7 +258,7 @@ static int vhci_hub_status(struct usb_hcd *hcd, char *buf)
/* check pseudo status register for each port */
for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++) {
- if ((vhci->port_status[rhport] & PORT_C_MASK)) {
+ if ((vhci_hcd->port_status[rhport] & PORT_C_MASK)) {
/* The status of a port has been changed, */
usbip_dbg_vhci_rh("port %d status changed\n", rhport);
@@ -233,6 +275,40 @@ done:
return changed ? retval : 0;
}
+/* usb 3.0 root hub device descriptor */
+static struct {
+ struct usb_bos_descriptor bos;
+ struct usb_ss_cap_descriptor ss_cap;
+} __packed usb3_bos_desc = {
+
+ .bos = {
+ .bLength = USB_DT_BOS_SIZE,
+ .bDescriptorType = USB_DT_BOS,
+ .wTotalLength = cpu_to_le16(sizeof(usb3_bos_desc)),
+ .bNumDeviceCaps = 1,
+ },
+ .ss_cap = {
+ .bLength = USB_DT_USB_SS_CAP_SIZE,
+ .bDescriptorType = USB_DT_DEVICE_CAPABILITY,
+ .bDevCapabilityType = USB_SS_CAP_TYPE,
+ .wSpeedSupported = cpu_to_le16(USB_5GBPS_OPERATION),
+ .bFunctionalitySupport = ilog2(USB_5GBPS_OPERATION),
+ },
+};
+
+static inline void
+ss_hub_descriptor(struct usb_hub_descriptor *desc)
+{
+ memset(desc, 0, sizeof *desc);
+ desc->bDescriptorType = USB_DT_SS_HUB;
+ desc->bDescLength = 12;
+ desc->wHubCharacteristics = cpu_to_le16(
+ HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
+ desc->bNbrPorts = VHCI_HC_PORTS;
+ desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/
+ desc->u.ss.DeviceRemovable = 0xffff;
+}
+
static inline void hub_descriptor(struct usb_hub_descriptor *desc)
{
int width;
@@ -253,7 +329,8 @@ static inline void hub_descriptor(struct usb_hub_descriptor *desc)
static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
- struct vhci_hcd *dum;
+ struct vhci_hcd *vhci_hcd;
+ struct vhci *vhci;
int retval = 0;
int rhport;
unsigned long flags;
@@ -265,21 +342,24 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/*
* NOTE:
- * wIndex shows the port number and begins from 1.
+ * wIndex (bits 0-7) shows the port number and begins from 1?
*/
+ wIndex = ((__u8)(wIndex & 0x00ff));
usbip_dbg_vhci_rh("typeReq %x wValue %x wIndex %x\n", typeReq, wValue,
wIndex);
+
if (wIndex > VHCI_HC_PORTS)
pr_err("invalid port number %d\n", wIndex);
- rhport = ((__u8)(wIndex & 0x00ff)) - 1;
+ rhport = wIndex - 1;
- dum = hcd_to_vhci(hcd);
+ vhci_hcd = hcd_to_vhci_hcd(hcd);
+ vhci = vhci_hcd->vhci;
- spin_lock_irqsave(&dum->lock, flags);
+ spin_lock_irqsave(&vhci->lock, flags);
/* store old status and compare now and old later */
if (usbip_dbg_flag_vhci_rh) {
- memcpy(prev_port_status, dum->port_status,
+ memcpy(prev_port_status, vhci_hcd->port_status,
sizeof(prev_port_status));
}
@@ -290,45 +370,56 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
case ClearPortFeature:
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
- if (dum->port_status[rhport] & USB_PORT_STAT_SUSPEND) {
+ if (hcd->speed == HCD_USB3) {
+ pr_err(" ClearPortFeature: USB_PORT_FEAT_SUSPEND req not "
+ "supported for USB 3.0 roothub\n");
+ goto error;
+ }
+ usbip_dbg_vhci_rh(
+ " ClearPortFeature: USB_PORT_FEAT_SUSPEND\n");
+ if (vhci_hcd->port_status[rhport] & USB_PORT_STAT_SUSPEND) {
/* 20msec signaling */
- dum->resuming = 1;
- dum->re_timeout =
- jiffies + msecs_to_jiffies(20);
+ vhci_hcd->resuming = 1;
+ vhci_hcd->re_timeout = jiffies + msecs_to_jiffies(20);
}
break;
case USB_PORT_FEAT_POWER:
usbip_dbg_vhci_rh(
" ClearPortFeature: USB_PORT_FEAT_POWER\n");
- dum->port_status[rhport] = 0;
- dum->resuming = 0;
- break;
- case USB_PORT_FEAT_C_RESET:
- usbip_dbg_vhci_rh(
- " ClearPortFeature: USB_PORT_FEAT_C_RESET\n");
- switch (dum->vdev[rhport].speed) {
- case USB_SPEED_HIGH:
- dum->port_status[rhport] |=
- USB_PORT_STAT_HIGH_SPEED;
- break;
- case USB_SPEED_LOW:
- dum->port_status[rhport] |=
- USB_PORT_STAT_LOW_SPEED;
- break;
- default:
- break;
- }
+ if (hcd->speed == HCD_USB3)
+ vhci_hcd->port_status[rhport] &= ~USB_SS_PORT_STAT_POWER;
+ else
+ vhci_hcd->port_status[rhport] &= ~USB_PORT_STAT_POWER;
break;
default:
usbip_dbg_vhci_rh(" ClearPortFeature: default %x\n",
wValue);
- dum->port_status[rhport] &= ~(1 << wValue);
+ vhci_hcd->port_status[rhport] &= ~(1 << wValue);
break;
}
break;
case GetHubDescriptor:
usbip_dbg_vhci_rh(" GetHubDescriptor\n");
- hub_descriptor((struct usb_hub_descriptor *) buf);
+ if (hcd->speed == HCD_USB3 &&
+ (wLength < USB_DT_SS_HUB_SIZE ||
+ wValue != (USB_DT_SS_HUB << 8))) {
+ pr_err("Wrong hub descriptor type for USB 3.0 roothub.\n");
+ goto error;
+ }
+ if (hcd->speed == HCD_USB3)
+ ss_hub_descriptor((struct usb_hub_descriptor *) buf);
+ else
+ hub_descriptor((struct usb_hub_descriptor *) buf);
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ if (hcd->speed != HCD_USB3)
+ goto error;
+
+ if ((wValue >> 8) != USB_DT_BOS)
+ goto error;
+
+ memcpy(buf, &usb3_bos_desc, sizeof(usb3_bos_desc));
+ retval = sizeof(usb3_bos_desc);
break;
case GetHubStatus:
usbip_dbg_vhci_rh(" GetHubStatus\n");
@@ -336,7 +427,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
break;
case GetPortStatus:
usbip_dbg_vhci_rh(" GetPortStatus port %x\n", wIndex);
- if (wIndex > VHCI_HC_PORTS || wIndex < 1) {
+ if (wIndex < 1) {
pr_err("invalid port number %d\n", wIndex);
retval = -EPIPE;
}
@@ -346,36 +437,48 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/* whoever resets or resumes must GetPortStatus to
* complete it!!
*/
- if (dum->resuming && time_after(jiffies, dum->re_timeout)) {
- dum->port_status[rhport] |=
- (1 << USB_PORT_FEAT_C_SUSPEND);
- dum->port_status[rhport] &=
- ~(1 << USB_PORT_FEAT_SUSPEND);
- dum->resuming = 0;
- dum->re_timeout = 0;
+ if (vhci_hcd->resuming && time_after(jiffies, vhci_hcd->re_timeout)) {
+ vhci_hcd->port_status[rhport] |= (1 << USB_PORT_FEAT_C_SUSPEND);
+ vhci_hcd->port_status[rhport] &= ~(1 << USB_PORT_FEAT_SUSPEND);
+ vhci_hcd->resuming = 0;
+ vhci_hcd->re_timeout = 0;
}
- if ((dum->port_status[rhport] & (1 << USB_PORT_FEAT_RESET)) !=
- 0 && time_after(jiffies, dum->re_timeout)) {
- dum->port_status[rhport] |=
- (1 << USB_PORT_FEAT_C_RESET);
- dum->port_status[rhport] &=
- ~(1 << USB_PORT_FEAT_RESET);
- dum->re_timeout = 0;
+ if ((vhci_hcd->port_status[rhport] & (1 << USB_PORT_FEAT_RESET)) !=
+ 0 && time_after(jiffies, vhci_hcd->re_timeout)) {
+ vhci_hcd->port_status[rhport] |= (1 << USB_PORT_FEAT_C_RESET);
+ vhci_hcd->port_status[rhport] &= ~(1 << USB_PORT_FEAT_RESET);
+ vhci_hcd->re_timeout = 0;
- if (dum->vdev[rhport].ud.status ==
+ if (vhci_hcd->vdev[rhport].ud.status ==
VDEV_ST_NOTASSIGNED) {
usbip_dbg_vhci_rh(
" enable rhport %d (status %u)\n",
rhport,
- dum->vdev[rhport].ud.status);
- dum->port_status[rhport] |=
+ vhci_hcd->vdev[rhport].ud.status);
+ vhci_hcd->port_status[rhport] |=
USB_PORT_STAT_ENABLE;
}
+
+ if (hcd->speed < HCD_USB3) {
+ switch (vhci_hcd->vdev[rhport].speed) {
+ case USB_SPEED_HIGH:
+ vhci_hcd->port_status[rhport] |=
+ USB_PORT_STAT_HIGH_SPEED;
+ break;
+ case USB_SPEED_LOW:
+ vhci_hcd->port_status[rhport] |=
+ USB_PORT_STAT_LOW_SPEED;
+ break;
+ default:
+ pr_err("vhci_device speed not set\n");
+ break;
+ }
+ }
}
- ((__le16 *) buf)[0] = cpu_to_le16(dum->port_status[rhport]);
+ ((__le16 *) buf)[0] = cpu_to_le16(vhci_hcd->port_status[rhport]);
((__le16 *) buf)[1] =
- cpu_to_le16(dum->port_status[rhport] >> 16);
+ cpu_to_le16(vhci_hcd->port_status[rhport] >> 16);
usbip_dbg_vhci_rh(" GetPortStatus bye %x %x\n", ((u16 *)buf)[0],
((u16 *)buf)[1]);
@@ -386,36 +489,119 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
break;
case SetPortFeature:
switch (wValue) {
+ case USB_PORT_FEAT_LINK_STATE:
+ usbip_dbg_vhci_rh(
+ " SetPortFeature: USB_PORT_FEAT_LINK_STATE\n");
+ if (hcd->speed != HCD_USB3) {
+ pr_err("USB_PORT_FEAT_LINK_STATE req not "
+ "supported for USB 2.0 roothub\n");
+ goto error;
+ }
+ /*
+ * Since this is dummy we don't have an actual link so
+ * there is nothing to do for the SET_LINK_STATE cmd
+ */
+ break;
+ case USB_PORT_FEAT_U1_TIMEOUT:
+ usbip_dbg_vhci_rh(
+ " SetPortFeature: USB_PORT_FEAT_U1_TIMEOUT\n");
+ case USB_PORT_FEAT_U2_TIMEOUT:
+ usbip_dbg_vhci_rh(
+ " SetPortFeature: USB_PORT_FEAT_U2_TIMEOUT\n");
+ /* TODO: add suspend/resume support! */
+ if (hcd->speed != HCD_USB3) {
+ pr_err("USB_PORT_FEAT_U1/2_TIMEOUT req not "
+ "supported for USB 2.0 roothub\n");
+ goto error;
+ }
+ break;
case USB_PORT_FEAT_SUSPEND:
usbip_dbg_vhci_rh(
" SetPortFeature: USB_PORT_FEAT_SUSPEND\n");
+ /* Applicable only for USB2.0 hub */
+ if (hcd->speed == HCD_USB3) {
+ pr_err("USB_PORT_FEAT_SUSPEND req not "
+ "supported for USB 3.0 roothub\n");
+ goto error;
+ }
+
+ vhci_hcd->port_status[rhport] |= USB_PORT_STAT_SUSPEND;
break;
+ case USB_PORT_FEAT_POWER:
+ usbip_dbg_vhci_rh(
+ " SetPortFeature: USB_PORT_FEAT_POWER\n");
+ if (hcd->speed == HCD_USB3)
+ vhci_hcd->port_status[rhport] |= USB_SS_PORT_STAT_POWER;
+ else
+ vhci_hcd->port_status[rhport] |= USB_PORT_STAT_POWER;
+ break;
+ case USB_PORT_FEAT_BH_PORT_RESET:
+ usbip_dbg_vhci_rh(
+ " SetPortFeature: USB_PORT_FEAT_BH_PORT_RESET\n");
+ /* Applicable only for USB3.0 hub */
+ if (hcd->speed != HCD_USB3) {
+ pr_err("USB_PORT_FEAT_BH_PORT_RESET req not "
+ "supported for USB 2.0 roothub\n");
+ goto error;
+ }
+ /* FALLS THROUGH */
case USB_PORT_FEAT_RESET:
usbip_dbg_vhci_rh(
" SetPortFeature: USB_PORT_FEAT_RESET\n");
- /* if it's already running, disconnect first */
- if (dum->port_status[rhport] & USB_PORT_STAT_ENABLE) {
- dum->port_status[rhport] &=
- ~(USB_PORT_STAT_ENABLE |
- USB_PORT_STAT_LOW_SPEED |
- USB_PORT_STAT_HIGH_SPEED);
- /* FIXME test that code path! */
+ /* if it's already enabled, disable */
+ if (hcd->speed == HCD_USB3) {
+ vhci_hcd->port_status[rhport] = 0;
+ vhci_hcd->port_status[rhport] =
+ (USB_SS_PORT_STAT_POWER |
+ USB_PORT_STAT_CONNECTION |
+ USB_PORT_STAT_RESET);
+ } else if (vhci_hcd->port_status[rhport] & USB_PORT_STAT_ENABLE) {
+ vhci_hcd->port_status[rhport] &= ~(USB_PORT_STAT_ENABLE
+ | USB_PORT_STAT_LOW_SPEED
+ | USB_PORT_STAT_HIGH_SPEED);
}
+
/* 50msec reset signaling */
- dum->re_timeout = jiffies + msecs_to_jiffies(50);
+ vhci_hcd->re_timeout = jiffies + msecs_to_jiffies(50);
- /* FALLTHROUGH */
+ /* FALLS THROUGH */
default:
usbip_dbg_vhci_rh(" SetPortFeature: default %d\n",
wValue);
- dum->port_status[rhport] |= (1 << wValue);
- break;
+ if (hcd->speed == HCD_USB3) {
+ if ((vhci_hcd->port_status[rhport] &
+ USB_SS_PORT_STAT_POWER) != 0) {
+ vhci_hcd->port_status[rhport] |= (1 << wValue);
+ }
+ } else
+ if ((vhci_hcd->port_status[rhport] &
+ USB_PORT_STAT_POWER) != 0) {
+ vhci_hcd->port_status[rhport] |= (1 << wValue);
+ }
+ }
+ break;
+ case GetPortErrorCount:
+ usbip_dbg_vhci_rh(" GetPortErrorCount\n");
+ if (hcd->speed != HCD_USB3) {
+ pr_err("GetPortErrorCount req not "
+ "supported for USB 2.0 roothub\n");
+ goto error;
+ }
+ /* We'll always return 0 since this is a dummy hub */
+ *(__le32 *) buf = cpu_to_le32(0);
+ break;
+ case SetHubDepth:
+ usbip_dbg_vhci_rh(" SetHubDepth\n");
+ if (hcd->speed != HCD_USB3) {
+ pr_err("SetHubDepth req not supported for "
+ "USB 2.0 roothub\n");
+ goto error;
}
break;
-
default:
- pr_err("default: no such request\n");
-
+ pr_err("default hub control req: %04x v%04x i%04x l%d\n",
+ typeReq, wValue, wIndex, wLength);
+error:
/* "protocol stall" on error */
retval = -EPIPE;
}
@@ -425,12 +611,16 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
/* Only dump valid port status */
if (rhport >= 0) {
dump_port_status_diff(prev_port_status[rhport],
- dum->port_status[rhport]);
+ vhci_hcd->port_status[rhport],
+ hcd->speed == HCD_USB3);
}
}
usbip_dbg_vhci_rh(" bye\n");
- spin_unlock_irqrestore(&dum->lock, flags);
+ spin_unlock_irqrestore(&vhci->lock, flags);
+
+ if ((vhci_hcd->port_status[rhport] & PORT_C_MASK) != 0)
+ usb_hcd_poll_rh_status(hcd);
return retval;
}
@@ -438,14 +628,14 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
static void vhci_tx_urb(struct urb *urb, struct vhci_device *vdev)
{
struct vhci_priv *priv;
- struct vhci_hcd *vhci;
+ struct vhci_hcd *vhci_hcd;
unsigned long flags;
if (!vdev) {
pr_err("could not get virtual device");
return;
}
- vhci = vdev_to_vhci(vdev);
+ vhci_hcd = vdev_to_vhci_hcd(vdev);
priv = kzalloc(sizeof(struct vhci_priv), GFP_ATOMIC);
if (!priv) {
@@ -455,7 +645,7 @@ static void vhci_tx_urb(struct urb *urb, struct vhci_device *vdev)
spin_lock_irqsave(&vdev->priv_lock, flags);
- priv->seqnum = atomic_inc_return(&vhci->seqnum);
+ priv->seqnum = atomic_inc_return(&vhci_hcd->seqnum);
if (priv->seqnum == 0xffff)
dev_info(&urb->dev->dev, "seqnum max\n");
@@ -470,10 +660,10 @@ static void vhci_tx_urb(struct urb *urb, struct vhci_device *vdev)
spin_unlock_irqrestore(&vdev->priv_lock, flags);
}
-static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
- gfp_t mem_flags)
+static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci_hcd *vhci_hcd = hcd_to_vhci_hcd(hcd);
+ struct vhci *vhci = vhci_hcd->vhci;
struct device *dev = &urb->dev->dev;
u8 portnum = urb->dev->portnum;
int ret = 0;
@@ -487,7 +677,7 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
pr_err("invalid port number %d\n", portnum);
return -ENODEV;
}
- vdev = &vhci->vdev[portnum-1];
+ vdev = &vhci_hcd->vdev[portnum-1];
/* patch to usb_sg_init() is in 2.5.60 */
BUG_ON(!urb->transfer_buffer && urb->transfer_buffer_length);
@@ -640,7 +830,8 @@ no_need_unlink:
*/
static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci_hcd *vhci_hcd = hcd_to_vhci_hcd(hcd);
+ struct vhci *vhci = vhci_hcd->vhci;
struct vhci_priv *priv;
struct vhci_device *vdev;
unsigned long flags;
@@ -691,7 +882,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
usb_hcd_unlink_urb_from_ep(hcd, urb);
spin_unlock_irqrestore(&vhci->lock, flags);
- usb_hcd_giveback_urb(vhci_to_hcd(vhci), urb, urb->status);
+ usb_hcd_giveback_urb(hcd, urb, urb->status);
spin_lock_irqsave(&vhci->lock, flags);
} else {
@@ -709,7 +900,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
return -ENOMEM;
}
- unlink->seqnum = atomic_inc_return(&vhci->seqnum);
+ unlink->seqnum = atomic_inc_return(&vhci_hcd->seqnum);
if (unlink->seqnum == 0xffff)
pr_info("seqnum max\n");
@@ -733,8 +924,9 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
static void vhci_device_unlink_cleanup(struct vhci_device *vdev)
{
- struct vhci_hcd *vhci = vdev_to_vhci(vdev);
- struct usb_hcd *hcd = vhci_to_hcd(vhci);
+ struct vhci_hcd *vhci_hcd = vdev_to_vhci_hcd(vdev);
+ struct usb_hcd *hcd = vhci_hcd_to_hcd(vhci_hcd);
+ struct vhci *vhci = vhci_hcd->vhci;
struct vhci_unlink *unlink, *tmp;
unsigned long flags;
@@ -846,7 +1038,6 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
pr_info("disconnect device\n");
}
-
static void vhci_device_reset(struct usbip_device *ud)
{
struct vhci_device *vdev = container_of(ud, struct vhci_device, ud);
@@ -918,29 +1109,58 @@ static int hcd_name_to_id(const char *name)
return val;
}
+static int vhci_setup(struct usb_hcd *hcd)
+{
+ struct vhci *vhci = *((void **)dev_get_platdata(hcd->self.controller));
+ hcd->self.sg_tablesize = ~0;
+ if (usb_hcd_is_primary_hcd(hcd)) {
+ vhci->vhci_hcd_hs = hcd_to_vhci_hcd(hcd);
+ vhci->vhci_hcd_hs->vhci = vhci;
+ /*
+ * Mark the first roothub as being USB 2.0.
+ * The USB 3.0 roothub will be registered later by
+ * vhci_hcd_probe()
+ */
+ hcd->speed = HCD_USB2;
+ hcd->self.root_hub->speed = USB_SPEED_HIGH;
+ } else {
+ vhci->vhci_hcd_ss = hcd_to_vhci_hcd(hcd);
+ vhci->vhci_hcd_ss->vhci = vhci;
+ hcd->speed = HCD_USB3;
+ hcd->self.root_hub->speed = USB_SPEED_SUPER;
+ }
+ return 0;
+}
+
static int vhci_start(struct usb_hcd *hcd)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci_hcd *vhci_hcd = hcd_to_vhci_hcd(hcd);
int id, rhport;
- int err = 0;
+ int err;
usbip_dbg_vhci_hc("enter vhci_start\n");
+ if (usb_hcd_is_primary_hcd(hcd))
+ spin_lock_init(&vhci_hcd->vhci->lock);
+
/* initialize private data of usb_hcd */
for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++) {
- struct vhci_device *vdev = &vhci->vdev[rhport];
+ struct vhci_device *vdev = &vhci_hcd->vdev[rhport];
vhci_device_init(vdev);
vdev->rhport = rhport;
}
- atomic_set(&vhci->seqnum, 0);
- spin_lock_init(&vhci->lock);
+ atomic_set(&vhci_hcd->seqnum, 0);
hcd->power_budget = 0; /* no limit */
hcd->uses_new_polling = 1;
+#ifdef CONFIG_USB_OTG
+ hcd->self.otg_port = 1;
+#endif
+
id = hcd_name_to_id(hcd_name(hcd));
if (id < 0) {
pr_err("invalid vhci name %s\n", hcd_name(hcd));
@@ -948,7 +1168,7 @@ static int vhci_start(struct usb_hcd *hcd)
}
/* vhci_hcd is now ready to be controlled through sysfs */
- if (id == 0) {
+ if (id == 0 && usb_hcd_is_primary_hcd(hcd)) {
err = vhci_init_attr_group();
if (err) {
pr_err("init attr group\n");
@@ -968,21 +1188,21 @@ static int vhci_start(struct usb_hcd *hcd)
static void vhci_stop(struct usb_hcd *hcd)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci_hcd *vhci_hcd = hcd_to_vhci_hcd(hcd);
int id, rhport;
usbip_dbg_vhci_hc("stop VHCI controller\n");
/* 1. remove the userland interface of vhci_hcd */
id = hcd_name_to_id(hcd_name(hcd));
- if (id == 0) {
+ if (id == 0 && usb_hcd_is_primary_hcd(hcd)) {
sysfs_remove_group(&hcd_dev(hcd)->kobj, &vhci_attr_group);
vhci_finish_attr_group();
}
/* 2. shutdown all the ports of vhci_hcd */
for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++) {
- struct vhci_device *vdev = &vhci->vdev[rhport];
+ struct vhci_device *vdev = &vhci_hcd->vdev[rhport];
usbip_event_add(&vdev->ud, VDEV_EVENT_REMOVED);
usbip_stop_eh(&vdev->ud);
@@ -1000,7 +1220,7 @@ static int vhci_get_frame_number(struct usb_hcd *hcd)
/* FIXME: suspend/resume */
static int vhci_bus_suspend(struct usb_hcd *hcd)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci *vhci = *((void **)dev_get_platdata(hcd->self.controller));
unsigned long flags;
dev_dbg(&hcd->self.root_hub->dev, "%s\n", __func__);
@@ -1014,7 +1234,7 @@ static int vhci_bus_suspend(struct usb_hcd *hcd)
static int vhci_bus_resume(struct usb_hcd *hcd)
{
- struct vhci_hcd *vhci = hcd_to_vhci(hcd);
+ struct vhci *vhci = *((void **)dev_get_platdata(hcd->self.controller));
int rc = 0;
unsigned long flags;
@@ -1036,13 +1256,32 @@ static int vhci_bus_resume(struct usb_hcd *hcd)
#define vhci_bus_resume NULL
#endif
+/* Change a group of bulk endpoints to support multiple stream IDs */
+static int vhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ unsigned int num_streams, gfp_t mem_flags)
+{
+ dev_dbg(&hcd->self.root_hub->dev, "vhci_alloc_streams not implemented\n");
+ return 0;
+}
+
+/* Reverts a group of bulk endpoints back to not using stream IDs. */
+static int vhci_free_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ gfp_t mem_flags)
+{
+ dev_dbg(&hcd->self.root_hub->dev, "vhci_free_streams not implemented\n");
+ return 0;
+}
+
static struct hc_driver vhci_hc_driver = {
.description = driver_name,
.product_desc = driver_desc,
.hcd_priv_size = sizeof(struct vhci_hcd),
- .flags = HCD_USB2,
+ .flags = HCD_USB3 | HCD_SHARED,
+ .reset = vhci_setup,
.start = vhci_start,
.stop = vhci_stop,
@@ -1055,11 +1294,16 @@ static struct hc_driver vhci_hc_driver = {
.hub_control = vhci_hub_control,
.bus_suspend = vhci_bus_suspend,
.bus_resume = vhci_bus_resume,
+
+ .alloc_streams = vhci_alloc_streams,
+ .free_streams = vhci_free_streams,
};
static int vhci_hcd_probe(struct platform_device *pdev)
{
- struct usb_hcd *hcd;
+ struct vhci *vhci = *((void **)dev_get_platdata(&pdev->dev));
+ struct usb_hcd *hcd_hs;
+ struct usb_hcd *hcd_ss;
int ret;
usbip_dbg_vhci_hc("name %s id %d\n", pdev->name, pdev->id);
@@ -1068,43 +1312,68 @@ static int vhci_hcd_probe(struct platform_device *pdev)
* Allocate and initialize hcd.
* Our private data is also allocated automatically.
*/
- hcd = usb_create_hcd(&vhci_hc_driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd) {
- pr_err("create hcd failed\n");
+ hcd_hs = usb_create_hcd(&vhci_hc_driver, &pdev->dev, dev_name(&pdev->dev));
+ if (!hcd_hs) {
+ pr_err("create primary hcd failed\n");
return -ENOMEM;
}
- hcd->has_tt = 1;
+ hcd_hs->has_tt = 1;
/*
* Finish generic HCD structure initialization and register.
* Call the driver's reset() and start() routines.
*/
- ret = usb_add_hcd(hcd, 0, 0);
+ ret = usb_add_hcd(hcd_hs, 0, 0);
if (ret != 0) {
- pr_err("usb_add_hcd failed %d\n", ret);
- usb_put_hcd(hcd);
- return ret;
+ pr_err("usb_add_hcd hs failed %d\n", ret);
+ goto put_usb2_hcd;
+ }
+
+ hcd_ss = usb_create_shared_hcd(&vhci_hc_driver, &pdev->dev,
+ dev_name(&pdev->dev), hcd_hs);
+ if (!hcd_ss) {
+ ret = -ENOMEM;
+ pr_err("create shared hcd failed\n");
+ goto remove_usb2_hcd;
+ }
+
+ ret = usb_add_hcd(hcd_ss, 0, 0);
+ if (ret) {
+ pr_err("usb_add_hcd ss failed %d\n", ret);
+ goto put_usb3_hcd;
}
usbip_dbg_vhci_hc("bye\n");
return 0;
+
+put_usb3_hcd:
+ usb_put_hcd(hcd_ss);
+remove_usb2_hcd:
+ usb_remove_hcd(hcd_hs);
+put_usb2_hcd:
+ usb_put_hcd(hcd_hs);
+ vhci->vhci_hcd_hs = NULL;
+ vhci->vhci_hcd_ss = NULL;
+ return ret;
}
static int vhci_hcd_remove(struct platform_device *pdev)
{
- struct usb_hcd *hcd;
-
- hcd = platform_get_drvdata(pdev);
- if (!hcd)
- return 0;
+ struct vhci *vhci = *((void **)dev_get_platdata(&pdev->dev));
/*
* Disconnects the root hub,
* then reverses the effects of usb_add_hcd(),
* invoking the HCD's stop() methods.
*/
- usb_remove_hcd(hcd);
- usb_put_hcd(hcd);
+ usb_remove_hcd(vhci_hcd_to_hcd(vhci->vhci_hcd_ss));
+ usb_put_hcd(vhci_hcd_to_hcd(vhci->vhci_hcd_ss));
+
+ usb_remove_hcd(vhci_hcd_to_hcd(vhci->vhci_hcd_hs));
+ usb_put_hcd(vhci_hcd_to_hcd(vhci->vhci_hcd_hs));
+
+ vhci->vhci_hcd_hs = NULL;
+ vhci->vhci_hcd_ss = NULL;
return 0;
}
@@ -1115,23 +1384,32 @@ static int vhci_hcd_remove(struct platform_device *pdev)
static int vhci_hcd_suspend(struct platform_device *pdev, pm_message_t state)
{
struct usb_hcd *hcd;
- struct vhci_hcd *vhci;
+ struct vhci *vhci;
int rhport;
int connected = 0;
int ret = 0;
unsigned long flags;
+ dev_dbg(&pdev->dev, "%s\n", __func__);
+
hcd = platform_get_drvdata(pdev);
if (!hcd)
return 0;
- vhci = hcd_to_vhci(hcd);
+
+ vhci = *((void **)dev_get_platdata(hcd->self.controller));
spin_lock_irqsave(&vhci->lock, flags);
- for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++)
- if (vhci->port_status[rhport] & USB_PORT_STAT_CONNECTION)
+ for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++) {
+ if (vhci->vhci_hcd_hs->port_status[rhport] &
+ USB_PORT_STAT_CONNECTION)
connected += 1;
+ if (vhci->vhci_hcd_ss->port_status[rhport] &
+ USB_PORT_STAT_CONNECTION)
+ connected += 1;
+ }
+
spin_unlock_irqrestore(&vhci->lock, flags);
if (connected > 0) {
@@ -1179,34 +1457,16 @@ static struct platform_driver vhci_driver = {
},
};
-static int add_platform_device(int id)
-{
- struct platform_device *pdev;
- int dev_nr;
-
- if (id == 0)
- dev_nr = -1;
- else
- dev_nr = id;
-
- pdev = platform_device_register_simple(driver_name, dev_nr, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- *(vhci_pdevs + id) = pdev;
- return 0;
-}
-
static void del_platform_devices(void)
{
struct platform_device *pdev;
int i;
for (i = 0; i < vhci_num_controllers; i++) {
- pdev = *(vhci_pdevs + i);
+ pdev = vhcis[i].pdev;
if (pdev != NULL)
platform_device_unregister(pdev);
- *(vhci_pdevs + i) = NULL;
+ vhcis[i].pdev = NULL;
}
sysfs_remove_link(&platform_bus.kobj, driver_name);
}
@@ -1221,28 +1481,51 @@ static int __init vhci_hcd_init(void)
if (vhci_num_controllers < 1)
vhci_num_controllers = 1;
- vhci_pdevs = kcalloc(vhci_num_controllers, sizeof(void *), GFP_KERNEL);
- if (vhci_pdevs == NULL)
+ vhcis = kcalloc(vhci_num_controllers, sizeof(struct vhci), GFP_KERNEL);
+ if (vhcis == NULL)
return -ENOMEM;
+ for (i = 0; i < vhci_num_controllers; i++) {
+ vhcis[i].pdev = platform_device_alloc(driver_name, i);
+ if (!vhcis[i].pdev) {
+ i--;
+ while (i >= 0)
+ platform_device_put(vhcis[i--].pdev);
+ ret = -ENOMEM;
+ goto err_device_alloc;
+ }
+ }
+ for (i = 0; i < vhci_num_controllers; i++) {
+ void *vhci = &vhcis[i];
+ ret = platform_device_add_data(vhcis[i].pdev, &vhci, sizeof(void *));
+ if (ret)
+ goto err_driver_register;
+ }
+
ret = platform_driver_register(&vhci_driver);
if (ret)
goto err_driver_register;
for (i = 0; i < vhci_num_controllers; i++) {
- ret = add_platform_device(i);
- if (ret)
- goto err_platform_device_register;
+ ret = platform_device_add(vhcis[i].pdev);
+ if (ret < 0) {
+ i--;
+ while (i >= 0)
+ platform_device_del(vhcis[i--].pdev);
+ goto err_add_hcd;
+ }
}
pr_info(DRIVER_DESC " v" USBIP_VERSION "\n");
return ret;
-err_platform_device_register:
- del_platform_devices();
+err_add_hcd:
platform_driver_unregister(&vhci_driver);
err_driver_register:
- kfree(vhci_pdevs);
+ for (i = 0; i < vhci_num_controllers; i++)
+ platform_device_put(vhcis[i].pdev);
+err_device_alloc:
+ kfree(vhcis);
return ret;
}
@@ -1250,7 +1533,7 @@ static void __exit vhci_hcd_exit(void)
{
del_platform_devices();
platform_driver_unregister(&vhci_driver);
- kfree(vhci_pdevs);
+ kfree(vhcis);
}
module_init(vhci_hcd_init);