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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-11 11:24:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-11 11:24:25 -0700
commitc6c599272374a358b4171d50ffd605e6cf7b481c (patch)
tree8ce918c724c39e88e96d7abf243955718e71da9a /drivers/usb
parentff945afb10bc9d81f395da474fa2aa88ee620e48 (diff)
parent40d28582316d8dcb535c359a14b71cb910ad6e73 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (32 commits) USB: serial: no unnecessary GFP_ATOMIC in oti6858 USB: serial: fix race between unthrottle and completion handler in visor USB: serial: fix assumption that throttle/unthrottle cannot sleep USB: serial: fix race between unthrottle and completion handler in symbolserial USB: serial: fix race between unthrottle and completion handler in opticon USB: ehci: Fix isoc scheduling boundary checking. USB: storage: When a device returns no sense data, call it a Hardware Error USB: small fix in error case of suspend in generic usbserial code USB: visor: fix trivial accounting bug in visor driver USB: Fix throttling in generic usbserial driver USB: cp210x: Add support for the DW700 UART USB: ipaq: fix oops when device is plugged in USB: isp1362: fix build warnings on 64-bit systems USB: gadget: imx_udc: Use resource size USB: storage: iRiver P7 UNUSUAL_DEV patch USB: musb: make HAVE_CLK support optional USB: xhci: Fix dropping endpoints from the xHC schedule. USB: xhci: Don't wait for a disable slot cmd when HC dies. USB: xhci: Handle canceled URBs when HC dies. USB: xhci: Stop debugging polling loop when HC dies. ...
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/class/usbtmc.c2
-rw-r--r--drivers/usb/gadget/imx_udc.c8
-rw-r--r--drivers/usb/host/ehci-sched.c1
-rw-r--r--drivers/usb/host/isp1362-hcd.c18
-rw-r--r--drivers/usb/host/isp1362.h12
-rw-r--r--drivers/usb/host/xhci-hcd.c29
-rw-r--r--drivers/usb/misc/usblcd.c3
-rw-r--r--drivers/usb/musb/Kconfig2
-rw-r--r--drivers/usb/musb/blackfin.c1
-rw-r--r--drivers/usb/musb/musb_core.h7
-rw-r--r--drivers/usb/musb/musb_regs.h9
-rw-r--r--drivers/usb/serial/aircable.c10
-rw-r--r--drivers/usb/serial/cp210x.c1
-rw-r--r--drivers/usb/serial/cypress_m8.c12
-rw-r--r--drivers/usb/serial/digi_acceleport.c8
-rw-r--r--drivers/usb/serial/empeg.c2
-rw-r--r--drivers/usb/serial/ftdi_sio.c422
-rw-r--r--drivers/usb/serial/garmin_gps.c12
-rw-r--r--drivers/usb/serial/generic.c2
-rw-r--r--drivers/usb/serial/ipaq.c9
-rw-r--r--drivers/usb/serial/keyspan_pda.c2
-rw-r--r--drivers/usb/serial/kl5kusb105.c2
-rw-r--r--drivers/usb/serial/mct_u232.c14
-rw-r--r--drivers/usb/serial/opticon.c13
-rw-r--r--drivers/usb/serial/option.c4
-rw-r--r--drivers/usb/serial/oti6858.c6
-rw-r--r--drivers/usb/serial/pl2303.c8
-rw-r--r--drivers/usb/serial/sierra.c2
-rw-r--r--drivers/usb/serial/symbolserial.c22
-rw-r--r--drivers/usb/serial/usb-serial.c10
-rw-r--r--drivers/usb/serial/visor.c28
-rw-r--r--drivers/usb/serial/whiteheat.c10
-rw-r--r--drivers/usb/storage/transport.c29
-rw-r--r--drivers/usb/storage/unusual_devs.h7
34 files changed, 315 insertions, 412 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 864f0ba6a34..2473cf0c6b1 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -39,7 +39,7 @@
#define USBTMC_SIZE_IOBUFFER 2048
/* Default USB timeout (in milliseconds) */
-#define USBTMC_TIMEOUT 10
+#define USBTMC_TIMEOUT 5000
/*
* Maximum number of read cycles to empty bulk in endpoint during CLEAR and
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index c52a681f376..01ee0b9bc95 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1402,7 +1402,8 @@ static int __init imx_udc_probe(struct platform_device *pdev)
struct clk *clk;
void __iomem *base;
int ret = 0;
- int i, res_size;
+ int i;
+ resource_size_t res_size;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -1416,7 +1417,7 @@ static int __init imx_udc_probe(struct platform_device *pdev)
return -ENODEV;
}
- res_size = res->end - res->start + 1;
+ res_size = resource_size(res);
if (!request_mem_region(res->start, res_size, res->name)) {
dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
res_size, res->start);
@@ -1527,8 +1528,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev)
clk_disable(imx_usb->clk);
iounmap(imx_usb->base);
- release_mem_region(imx_usb->res->start,
- imx_usb->res->end - imx_usb->res->start + 1);
+ release_mem_region(imx_usb->res->start, resource_size(imx_usb->res));
if (pdata->exit)
pdata->exit(&pdev->dev);
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 3ea05936851..3efa59b1804 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1425,6 +1425,7 @@ iso_stream_schedule (
status = -EFBIG;
goto fail;
}
+ stream->next_uframe = start;
goto ready;
}
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index e35d82808ba..5c774ab9825 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2284,10 +2284,10 @@ static int isp1362_mem_config(struct usb_hcd *hcd)
dev_info(hcd->self.controller, "ISP1362 Memory usage:\n");
dev_info(hcd->self.controller, " ISTL: 2 * %4d: %4d @ $%04x:$%04x\n",
istl_size / 2, istl_size, 0, istl_size / 2);
- dev_info(hcd->self.controller, " INTL: %4d * (%3u+8): %4d @ $%04x\n",
+ dev_info(hcd->self.controller, " INTL: %4d * (%3lu+8): %4d @ $%04x\n",
ISP1362_INTL_BUFFERS, intl_blksize - PTD_HEADER_SIZE,
intl_size, istl_size);
- dev_info(hcd->self.controller, " ATL : %4d * (%3u+8): %4d @ $%04x\n",
+ dev_info(hcd->self.controller, " ATL : %4d * (%3lu+8): %4d @ $%04x\n",
atl_buffers, atl_blksize - PTD_HEADER_SIZE,
atl_size, istl_size + intl_size);
dev_info(hcd->self.controller, " USED/FREE: %4d %4d\n", total,
@@ -2677,12 +2677,12 @@ static int __devexit isp1362_remove(struct platform_device *pdev)
DBG(0, "%s: Removing HCD\n", __func__);
usb_remove_hcd(hcd);
- DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__,
- (u32)isp1362_hcd->data_reg);
+ DBG(0, "%s: Unmapping data_reg @ %p\n", __func__,
+ isp1362_hcd->data_reg);
iounmap(isp1362_hcd->data_reg);
- DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__,
- (u32)isp1362_hcd->addr_reg);
+ DBG(0, "%s: Unmapping addr_reg @ %p\n", __func__,
+ isp1362_hcd->addr_reg);
iounmap(isp1362_hcd->addr_reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -2810,16 +2810,16 @@ static int __init isp1362_probe(struct platform_device *pdev)
return 0;
err6:
- DBG(0, "%s: Freeing dev %08x\n", __func__, (u32)isp1362_hcd);
+ DBG(0, "%s: Freeing dev %p\n", __func__, isp1362_hcd);
usb_put_hcd(hcd);
err5:
- DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__, (u32)data_reg);
+ DBG(0, "%s: Unmapping data_reg @ %p\n", __func__, data_reg);
iounmap(data_reg);
err4:
DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)data->start);
release_mem_region(data->start, resource_len(data));
err3:
- DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__, (u32)addr_reg);
+ DBG(0, "%s: Unmapping addr_reg @ %p\n", __func__, addr_reg);
iounmap(addr_reg);
err2:
DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)addr->start);
diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h
index fe60f62a32f..1a253ebf7e5 100644
--- a/drivers/usb/host/isp1362.h
+++ b/drivers/usb/host/isp1362.h
@@ -580,7 +580,7 @@ static inline const char *ISP1362_INT_NAME(int n)
static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr)
{
- unsigned p = (unsigned)ptr;
+ unsigned long p = (unsigned long)ptr;
if (!(p & 0xf))
isp1362_hcd->stat16++;
else if (!(p & 0x7))
@@ -770,7 +770,7 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l
if (!len)
return;
- if ((unsigned)dp & 0x1) {
+ if ((unsigned long)dp & 0x1) {
/* not aligned */
for (; len > 1; len -= 2) {
data = *dp++;
@@ -962,8 +962,8 @@ static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16
isp1362_write_diraddr(isp1362_hcd, offset, len);
- DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %08x\n", __func__,
- len, offset, (u32)buf);
+ DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n",
+ __func__, len, offset, buf);
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
_WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT));
@@ -982,8 +982,8 @@ static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16
isp1362_write_diraddr(isp1362_hcd, offset, len);
- DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %08x\n", __func__,
- len, offset, (u32)buf);
+ DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n",
+ __func__, len, offset, buf);
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
_WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT));
diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c
index 99911e727e0..932f9993848 100644
--- a/drivers/usb/host/xhci-hcd.c
+++ b/drivers/usb/host/xhci-hcd.c
@@ -335,6 +335,12 @@ void xhci_event_ring_work(unsigned long arg)
spin_lock_irqsave(&xhci->lock, flags);
temp = xhci_readl(xhci, &xhci->op_regs->status);
xhci_dbg(xhci, "op reg status = 0x%x\n", temp);
+ if (temp == 0xffffffff) {
+ xhci_dbg(xhci, "HW died, polling stopped.\n");
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return;
+ }
+
temp = xhci_readl(xhci, &xhci->ir_set->irq_pending);
xhci_dbg(xhci, "ir_set 0 pending = 0x%x\n", temp);
xhci_dbg(xhci, "No-op commands handled = %d\n", xhci->noops_handled);
@@ -776,6 +782,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
unsigned long flags;
int ret;
+ u32 temp;
struct xhci_hcd *xhci;
struct xhci_td *td;
unsigned int ep_index;
@@ -788,6 +795,17 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
ret = usb_hcd_check_unlink_urb(hcd, urb, status);
if (ret || !urb->hcpriv)
goto done;
+ temp = xhci_readl(xhci, &xhci->op_regs->status);
+ if (temp == 0xffffffff) {
+ xhci_dbg(xhci, "HW died, freeing TD.\n");
+ td = (struct xhci_td *) urb->hcpriv;
+
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ usb_hcd_giveback_urb(xhci_to_hcd(xhci), urb, -ESHUTDOWN);
+ kfree(td);
+ return ret;
+ }
xhci_dbg(xhci, "Cancel URB %p\n", urb);
xhci_dbg(xhci, "Event ring:\n");
@@ -877,7 +895,7 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
ctrl_ctx->drop_flags |= drop_flag;
new_drop_flags = ctrl_ctx->drop_flags;
- ctrl_ctx->add_flags = ~drop_flag;
+ ctrl_ctx->add_flags &= ~drop_flag;
new_add_flags = ctrl_ctx->add_flags;
last_ctx = xhci_last_valid_endpoint(ctrl_ctx->add_flags);
@@ -1410,11 +1428,20 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
unsigned long flags;
+ u32 state;
if (udev->slot_id == 0)
return;
spin_lock_irqsave(&xhci->lock, flags);
+ /* Don't disable the slot if the host controller is dead. */
+ state = xhci_readl(xhci, &xhci->op_regs->status);
+ if (state == 0xffffffff) {
+ xhci_free_virt_device(xhci, udev->slot_id);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return;
+ }
+
if (xhci_queue_slot_control(xhci, TRB_DISABLE_SLOT, udev->slot_id)) {
spin_unlock_irqrestore(&xhci->lock, flags);
xhci_dbg(xhci, "FIXME: allocate a command ring segment\n");
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 29092b8e59c..4fb120357c5 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -313,7 +313,8 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id
if (le16_to_cpu(dev->udev->descriptor.idProduct) != 0x0001) {
dev_warn(&interface->dev, "USBLCD model not supported.\n");
- return -ENODEV;
+ retval = -ENODEV;
+ goto error;
}
/* set up the endpoint information */
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 803adcb5ac1..760e7271d17 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -8,7 +8,7 @@ comment "Enable Host or Gadget support to see Inventra options"
# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
config USB_MUSB_HDRC
- depends on (USB || USB_GADGET) && HAVE_CLK
+ depends on (USB || USB_GADGET)
depends on !SUPERH
select NOP_USB_XCEIV if ARCH_DAVINCI
select TWL4030_USB if MACH_OMAP_3430SDP
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index f2f66ebc736..fcec87ea709 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -14,7 +14,6 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/io.h>
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 381d648a36b..6aa5f22e527 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -95,6 +95,13 @@ struct musb_ep;
#endif
#endif /* need MUSB gadget selection */
+#ifndef CONFIG_HAVE_CLK
+/* Dummy stub for clk framework */
+#define clk_get(dev, id) NULL
+#define clk_put(clock) do {} while (0)
+#define clk_enable(clock) do {} while (0)
+#define clk_disable(clock) do {} while (0)
+#endif
#ifdef CONFIG_PROC_FS
#include <linux/fs.h>
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index fbfd3fd9ce1..cc1d71b57d3 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -439,15 +439,6 @@ static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum,
/* Not implemented - HW has seperate Tx/Rx FIFO */
#define MUSB_TXCSR_MODE 0x0000
-/*
- * Dummy stub for clk framework, it will be removed
- * until Blackfin supports clk framework
- */
-#define clk_get(dev, id) NULL
-#define clk_put(clock) do {} while (0)
-#define clk_enable(clock) do {} while (0)
-#define clk_disable(clock) do {} while (0)
-
static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size)
{
}
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 2cbfab3716e..b10ac840941 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -554,13 +554,12 @@ static void aircable_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct aircable_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->rx_lock, flags);
+ spin_lock_irq(&priv->rx_lock);
priv->rx_flags |= THROTTLED;
- spin_unlock_irqrestore(&priv->rx_lock, flags);
+ spin_unlock_irq(&priv->rx_lock);
}
/* Based on ftdi_sio.c unthrottle */
@@ -569,14 +568,13 @@ static void aircable_unthrottle(struct tty_struct *tty)
struct usb_serial_port *port = tty->driver_data;
struct aircable_private *priv = usb_get_serial_port_data(port);
int actually_throttled;
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->rx_lock, flags);
+ spin_lock_irq(&priv->rx_lock);
actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- spin_unlock_irqrestore(&priv->rx_lock, flags);
+ spin_unlock_irq(&priv->rx_lock);
if (actually_throttled)
schedule_work(&priv->rx_work);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 4a208fe85bc..698252a4dc5 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -113,6 +113,7 @@ static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+ { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
{ } /* Terminating Entry */
};
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index e0a8b715f2f..a591ebec0f8 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1155,13 +1155,12 @@ static void cypress_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct cypress_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->rx_flags = THROTTLED;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
}
@@ -1170,14 +1169,13 @@ static void cypress_unthrottle(struct tty_struct *tty)
struct usb_serial_port *port = tty->driver_data;
struct cypress_private *priv = usb_get_serial_port_data(port);
int actually_throttled, result;
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
priv->rx_flags = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
if (!priv->comm_is_ok)
return;
@@ -1185,7 +1183,7 @@ static void cypress_unthrottle(struct tty_struct *tty)
if (actually_throttled) {
port->interrupt_in_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting read urb, "
"error %d\n", __func__, result);
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index ab3dd991586..68e80be6b9e 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -898,16 +898,16 @@ static void digi_rx_unthrottle(struct tty_struct *tty)
spin_lock_irqsave(&priv->dp_port_lock, flags);
- /* turn throttle off */
- priv->dp_throttled = 0;
- priv->dp_throttle_restart = 0;
-
/* restart read chain */
if (priv->dp_throttle_restart) {
port->read_urb->dev = port->serial->dev;
ret = usb_submit_urb(port->read_urb, GFP_ATOMIC);
}
+ /* turn throttle off */
+ priv->dp_throttled = 0;
+ priv->dp_throttle_restart = 0;
+
spin_unlock_irqrestore(&priv->dp_port_lock, flags);
if (ret)
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 33c9e9cf9eb..7dd0e3eadbe 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -391,7 +391,7 @@ static void empeg_unthrottle(struct tty_struct *tty)
dbg("%s - port %d", __func__, port->number);
port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result)
dev_err(&port->dev,
"%s - failed submitting read urb, error %d\n",
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 4f883b1773d..9c60d6d4908 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -76,13 +76,7 @@ struct ftdi_private {
unsigned long last_dtr_rts; /* saved modem control outputs */
wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
char prev_status, diff_status; /* Used for TIOCMIWAIT */
- __u8 rx_flags; /* receive state flags (throttling) */
- spinlock_t rx_lock; /* spinlock for receive state */
- struct delayed_work rx_work;
struct usb_serial_port *port;
- int rx_processed;
- unsigned long rx_bytes;
-
__u16 interface; /* FT2232C, FT2232H or FT4232H port interface
(0 for FT232/245) */
@@ -737,10 +731,6 @@ static const char *ftdi_chip_name[] = {
/* Constants for read urb and write urb */
#define BUFSZ 512
-/* rx_flags */
-#define THROTTLED 0x01
-#define ACTUALLY_THROTTLED 0x02
-
/* Used for TIOCMIWAIT */
#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
@@ -763,7 +753,7 @@ static int ftdi_write_room(struct tty_struct *tty);
static int ftdi_chars_in_buffer(struct tty_struct *tty);
static void ftdi_write_bulk_callback(struct urb *urb);
static void ftdi_read_bulk_callback(struct urb *urb);
-static void ftdi_process_read(struct work_struct *work);
+static void ftdi_process_read(struct usb_serial_port *port);
static void ftdi_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
@@ -1234,7 +1224,6 @@ static int set_serial_info(struct tty_struct *tty,
(new_serial.flags & ASYNC_FLAGS));
priv->custom_divisor = new_serial.custom_divisor;
- tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
write_latency_timer(port);
check_and_exit:
@@ -1527,7 +1516,6 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port)
}
kref_init(&priv->kref);
- spin_lock_init(&priv->rx_lock);
spin_lock_init(&priv->tx_lock);
init_waitqueue_head(&priv->delta_msr_wait);
/* This will push the characters through immediately rather
@@ -1549,7 +1537,6 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port)
port->read_urb->transfer_buffer_length = BUFSZ;
}
- INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
priv->port = port;
/* Free port's existing write urb and transfer buffer. */
@@ -1686,6 +1673,26 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port)
return 0;
}
+static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
+{
+ struct urb *urb = port->read_urb;
+ struct usb_serial *serial = port->serial;
+ int result;
+
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress),
+ urb->transfer_buffer,
+ urb->transfer_buffer_length,
+ ftdi_read_bulk_callback, port);
+ result = usb_submit_urb(urb, mem_flags);
+ if (result)
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
+ __func__, result);
+ return result;
+}
+
static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
{ /* ftdi_open */
struct usb_device *dev = port->serial->dev;
@@ -1700,12 +1707,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
spin_lock_irqsave(&priv->tx_lock, flags);
priv->tx_bytes = 0;
spin_unlock_irqrestore(&priv->tx_lock, flags);
- spin_lock_irqsave(&priv->rx_lock, flags);
- priv->rx_bytes = 0;
- spin_unlock_irqrestore(&priv->rx_lock, flags);
-
- if (tty)
- tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
write_latency_timer(port);
@@ -1725,23 +1726,14 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
ftdi_set_termios(tty, port, tty->termios);
/* Not throttled */
- spin_lock_irqsave(&priv->rx_lock, flags);
- priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- spin_unlock_irqrestore(&priv->rx_lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
+ port->throttled = 0;
+ port->throttle_req = 0;
+ spin_unlock_irqrestore(&port->lock, flags);
/* Start reading from the device */
- priv->rx_processed = 0;
- usb_fill_bulk_urb(port->read_urb, dev,
- usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ftdi_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
- else
+ result = ftdi_submit_read_urb(port, GFP_KERNEL);
+ if (!result)
kref_get(&priv->kref);
return result;
@@ -1787,10 +1779,6 @@ static void ftdi_close(struct usb_serial_port *port)
dbg("%s", __func__);
-
- /* cancel any scheduled reading */
- cancel_delayed_work_sync(&priv->rx_work);
-
/* shutdown our bulk read */
usb_kill_urb(port->read_urb);
kref_put(&priv->kref, ftdi_sio_priv_release);
@@ -2013,271 +2001,121 @@ static int ftdi_chars_in_buffer(struct tty_struct *tty)
return buffered;
}
-static void ftdi_read_bulk_callback(struct urb *urb)
+static int ftdi_process_packet(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ftdi_private *priv,
+ char *packet, int len)
{
- struct usb_serial_port *port = urb->context;
- struct tty_struct *tty;
- struct ftdi_private *priv;
- unsigned long countread;
- unsigned long flags;
- int status = urb->status;
-
- if (urb->number_of_packets > 0) {
- dev_err(&port->dev, "%s transfer_buffer_length %d "
- "actual_length %d number of packets %d\n", __func__,
- urb->transfer_buffer_length,
- urb->actual_length, urb->number_of_packets);
- dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
- urb->transfer_flags);
- }
+ int i;
+ char status;
+ char flag;
+ char *ch;
dbg("%s - port %d", __func__, port->number);
- if (port->port.count <= 0)
- return;
-
- tty = tty_port_tty_get(&port->port);
- if (!tty) {
- dbg("%s - bad tty pointer - exiting", __func__);
- return;
+ if (len < 2) {
+ dbg("malformed packet");
+ return 0;
}
- priv = usb_get_serial_port_data(port);
- if (!priv) {
- dbg("%s - bad port private data pointer - exiting", __func__);
- goto out;
+ /* Compare new line status to the old one, signal if different/
+ N.B. packet may be processed more than once, but differences
+ are only processed once. */
+ status = packet[0] & FTDI_STATUS_B0_MASK;
+ if (status != priv->prev_status) {
+ priv->diff_status |= status ^ priv->prev_status;
+ wake_up_interruptible(&priv->delta_msr_wait);
+ priv->prev_status = status;
}
- if (urb != port->read_urb)
- dev_err(&port->dev, "%s - Not my urb!\n", __func__);
-
- if (status) {
- /* This will happen at close every time so it is a dbg not an
- err */
- dbg("(this is ok on close) nonzero read bulk status received: %d", status);
- goto out;
+ /*
+ * Although the device uses a bitmask and hence can have multiple
+ * errors on a packet - the order here sets the priority the error is
+ * returned to the tty layer.
+ */
+ flag = TTY_NORMAL;
+ if (packet[1] & FTDI_RS_OE) {
+ flag = TTY_OVERRUN;
+ dbg("OVERRRUN error");
+ }
+ if (packet[1] & FTDI_RS_BI) {
+ flag = TTY_BREAK;
+ dbg("BREAK received");
+ usb_serial_handle_break(port);
+ }
+ if (packet[1] & FTDI_RS_PE) {
+ flag = TTY_PARITY;
+ dbg("PARITY error");
+ }
+ if (packet[1] & FTDI_RS_FE) {
+ flag = TTY_FRAME;
+ dbg("FRAMING error");
}
- /* count data bytes, but not status bytes */
- countread = urb->actual_length;
- countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
- spin_lock_irqsave(&priv->rx_lock, flags);
- priv->rx_bytes += countread;
- spin_unlock_irqrestore(&priv->rx_lock, flags);
-
- ftdi_process_read(&priv->rx_work.work);
-out:
- tty_kref_put(tty);
-} /* ftdi_read_bulk_callback */
-
+ len -= 2;
+ if (!len)
+ return 0; /* status only */
+ ch = packet + 2;
+
+ if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
+ tty_insert_flip_string(tty, ch, len);
+ else {
+ for (i = 0; i < len; i++, ch++) {
+ if (!usb_serial_handle_sysrq_char(tty, port, *ch))
+ tty_insert_flip_char(tty, *ch, flag);
+ }
+ }
+ return len;
+}
-static void ftdi_process_read(struct work_struct *work)
-{ /* ftdi_process_read */
- struct ftdi_private *priv =
- container_of(work, struct ftdi_private, rx_work.work);
- struct usb_serial_port *port = priv->port;
- struct urb *urb;
+static void ftdi_process_read(struct usb_serial_port *port)
+{
+ struct urb *urb = port->read_urb;
struct tty_struct *tty;
- char error_flag;
- unsigned char *data;
-
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
+ char *data = (char *)urb->transfer_buffer;
int i;
- int result;
- int need_flip;
- int packet_offset;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (port->port.count <= 0)
- return;
+ int len;
+ int count = 0;
tty = tty_port_tty_get(&port->port);
- if (!tty) {
- dbg("%s - bad tty pointer - exiting", __func__);
+ if (!tty)
return;
- }
-
- priv = usb_get_serial_port_data(port);
- if (!priv) {
- dbg("%s - bad port private data pointer - exiting", __func__);
- goto out;
- }
-
- urb = port->read_urb;
- if (!urb) {
- dbg("%s - bad read_urb pointer - exiting", __func__);
- goto out;
- }
-
- data = urb->transfer_buffer;
- if (priv->rx_processed) {
- dbg("%s - already processed: %d bytes, %d remain", __func__,
- priv->rx_processed,
- urb->actual_length - priv->rx_processed);
- } else {
- /* The first two bytes of every read packet are status */
- if (urb->actual_length > 2)
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
- else
- dbg("Status only: %03oo %03oo", data[0], data[1]);
+ for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
+ len = min_t(int, urb->actual_length - i, priv->max_packet_size);
+ count += ftdi_process_packet(tty, port, priv, &data[i], len);
}
-
- /* TO DO -- check for hung up line and handle appropriately: */
- /* send hangup */
- /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
- /* if CD is dropped and the line is not CLOCAL then we should hangup */
-
- need_flip = 0;
- for (packet_offset = priv->rx_processed;
- packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
- int length;
-
- /* Compare new line status to the old one, signal if different/
- N.B. packet may be processed more than once, but differences
- are only processed once. */
- char new_status = data[packet_offset + 0] &
- FTDI_STATUS_B0_MASK;
- if (new_status != priv->prev_status) {
- priv->diff_status |=
- new_status ^ priv->prev_status;
- wake_up_interruptible(&priv->delta_msr_wait);
- priv->prev_status = new_status;
- }
-
- length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
- if (length < 0) {
- dev_err(&port->dev, "%s - bad packet length: %d\n",
- __func__, length+2);
- length = 0;
- }
-
- if (priv->rx_flags & THROTTLED) {
- dbg("%s - throttled", __func__);
- break;
- }
- if (tty_buffer_request_room(tty, length) < length) {
- /* break out & wait for throttling/unthrottling to
- happen */
- dbg("%s - receive room low", __func__);
- break;
- }
-
- /* Handle errors and break */
- error_flag = TTY_NORMAL;
- /* Although the device uses a bitmask and hence can have
- multiple errors on a packet - the order here sets the
- priority the error is returned to the tty layer */
-
- if (data[packet_offset+1] & FTDI_RS_OE) {
- error_flag = TTY_OVERRUN;
- dbg("OVERRRUN error");
- }
- if (data[packet_offset+1] & FTDI_RS_BI) {
- error_flag = TTY_BREAK;
- dbg("BREAK received");
- usb_serial_handle_break(port);
- }
- if (data[packet_offset+1] & FTDI_RS_PE) {
- error_flag = TTY_PARITY;
- dbg("PARITY error");
- }
- if (data[packet_offset+1] & FTDI_RS_FE) {
- error_flag = TTY_FRAME;
- dbg("FRAMING error");
- }
- if (length > 0) {
- for (i = 2; i < length+2; i++) {
- /* Note that the error flag is duplicated for
- every character received since we don't know
- which character it applied to */
- if (!usb_serial_handle_sysrq_char(tty, port,
- data[packet_offset + i]))
- tty_insert_flip_char(tty,
- data[packet_offset + i],
- error_flag);
- }
- need_flip = 1;
- }
-
-#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
- /* if a parity error is detected you get status packets forever
- until a character is sent without a parity error.
- This doesn't work well since the application receives a
- never ending stream of bad data - even though new data
- hasn't been sent. Therefore I (bill) have taken this out.
- However - this might make sense for framing errors and so on
- so I am leaving the code in for now.
- */
- else {
- if (error_flag != TTY_NORMAL) {
- dbg("error_flag is not normal");
- /* In this case it is just status - if that is
- an error send a bad character */
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- tty_flip_buffer_push(tty);
- tty_insert_flip_char(tty, 0xff, error_flag);
- need_flip = 1;
- }
- }
-#endif
- } /* "for(packet_offset=0..." */
-
- /* Low latency */
- if (need_flip)
+ if (count)
tty_flip_buffer_push(tty);
+ tty_kref_put(tty);
+}
- if (packet_offset < urb->actual_length) {
- /* not completely processed - record progress */
- priv->rx_processed = packet_offset;
- dbg("%s - incomplete, %d bytes processed, %d remain",
- __func__, packet_offset,
- urb->actual_length - packet_offset);
- /* check if we were throttled while processing */
- spin_lock_irqsave(&priv->rx_lock, flags);
- if (priv->rx_flags & THROTTLED) {
- priv->rx_flags |= ACTUALLY_THROTTLED;
- spin_unlock_irqrestore(&priv->rx_lock, flags);
- dbg("%s - deferring remainder until unthrottled",
- __func__);
- goto out;
- }
- spin_unlock_irqrestore(&priv->rx_lock, flags);
- /* if the port is closed stop trying to read */
- if (port->port.count > 0)
- /* delay processing of remainder */
- schedule_delayed_work(&priv->rx_work, 1);
- else
- dbg("%s - port is closed", __func__);
- goto out;
- }
-
- /* urb is completely processed */
- priv->rx_processed = 0;
+static void ftdi_read_bulk_callback(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ unsigned long flags;
- /* if the port is closed stop trying to read */
- if (port->port.count > 0) {
- /* Continue trying to always read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ftdi_read_bulk_callback, port);
+ dbg("%s - port %d", __func__, port->number);
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
+ if (urb->status) {
+ dbg("%s - nonzero read bulk status received: %d",
+ __func__, urb->status);
+ return;
}
-out:
- tty_kref_put(tty);
-} /* ftdi_process_read */
+ usb_serial_debug_data(debug, &port->dev, __func__,
+ urb->actual_length, urb->transfer_buffer);
+ ftdi_process_read(port);
+
+ spin_lock_irqsave(&port->lock, flags);
+ port->throttled = port->throttle_req;
+ if (!port->throttled) {
+ spin_unlock_irqrestore(&port->lock, flags);
+ ftdi_submit_read_urb(port, GFP_ATOMIC);
+ } else
+ spin_unlock_irqrestore(&port->lock, flags);
+}
static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
{
@@ -2609,33 +2447,31 @@ static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
static void ftdi_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct ftdi_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->rx_lock, flags);
- priv->rx_flags |= THROTTLED;
- spin_unlock_irqrestore(&priv->rx_lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
+ port->throttle_req = 1;
+ spin_unlock_irqrestore(&port->lock, flags);
}
-
-static void ftdi_unthrottle(struct tty_struct *tty)
+void ftdi_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct ftdi_private *priv = usb_get_serial_port_data(port);
- int actually_throttled;
+ int was_throttled;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->rx_lock, flags);
- actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
- priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- spin_unlock_irqrestore(&priv->rx_lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
+ was_throttled = port->throttled;
+ port->throttled = port->throttle_req = 0;
+ spin_unlock_irqrestore(&port->lock, flags);
- if (actually_throttled)
- schedule_delayed_work(&priv->rx_work, 0);
+ /* Resubmit urb if throttled and open. */
+ if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
+ ftdi_submit_read_urb(port, GFP_KERNEL);
}
static int __init ftdi_init(void)
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 20432d34552..5ac900e5a50 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1390,14 +1390,13 @@ static void garmin_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* set flag, data received will be put into a queue
for later processing */
- spin_lock_irqsave(&garmin_data_p->lock, flags);
+ spin_lock_irq(&garmin_data_p->lock);
garmin_data_p->flags |= FLAGS_QUEUING|FLAGS_THROTTLED;
- spin_unlock_irqrestore(&garmin_data_p->lock, flags);
+ spin_unlock_irq(&garmin_data_p->lock);
}
@@ -1405,13 +1404,12 @@ static void garmin_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
- unsigned long flags;
int status;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&garmin_data_p->lock, flags);
+ spin_lock_irq(&garmin_data_p->lock);
garmin_data_p->flags &= ~FLAGS_THROTTLED;
- spin_unlock_irqrestore(&garmin_data_p->lock, flags);
+ spin_unlock_irq(&garmin_data_p->lock);
/* in native mode send queued data to tty, in
serial mode nothing needs to be done here */
@@ -1419,7 +1417,7 @@ static void garmin_unthrottle(struct tty_struct *tty)
garmin_flush_queue(garmin_data_p);
if (0 != (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) {
- status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ status = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (status)
dev_err(&port->dev,
"%s - failed resubmitting read urb, error %d\n",
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index deba08c7a01..bbe005cefcf 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -546,7 +546,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty)
if (was_throttled) {
/* Resume reading from device */
- usb_serial_generic_resubmit_read_urb(port, GFP_KERNEL);
+ flush_and_resubmit_read_urb(port);
}
}
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index 24fcc64b837..d6231c38813 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -966,6 +966,15 @@ static int ipaq_calc_num_ports(struct usb_serial *serial)
static int ipaq_startup(struct usb_serial *serial)
{
dbg("%s", __func__);
+
+ /* Some of the devices in ipaq_id_table[] are composite, and we
+ * shouldn't bind to all the interfaces. This test will rule out
+ * some obviously invalid possibilities.
+ */
+ if (serial->num_bulk_in < serial->num_ports ||
+ serial->num_bulk_out < serial->num_ports)
+ return -ENODEV;
+
if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
/*
* FIXME: HP iPaq rx3715, possibly others, have 1 config that
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 257c16cc6b2..1296a097f5c 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -290,7 +290,7 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty)
/* just restart the receive interrupt URB */
dbg("keyspan_pda_rx_unthrottle port %d", port->number);
port->interrupt_in_urb->dev = port->serial->dev;
- if (usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC))
+ if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL))
dbg(" usb_submit_urb(read urb) failed");
return;
}
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index f7373371b13..3a7873806f4 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -951,7 +951,7 @@ static void klsi_105_unthrottle(struct tty_struct *tty)
dbg("%s - port %d", __func__, port->number);
port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result)
dev_err(&port->dev,
"%s - failed submitting read urb, error %d\n",
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index ad4998bbf16..cd009cb280a 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -777,20 +777,19 @@ static void mct_u232_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
unsigned int control_state;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->rx_flags |= THROTTLED;
if (C_CRTSCTS(tty)) {
priv->control_state &= ~TIOCM_RTS;
control_state = priv->control_state;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
(void) mct_u232_set_modem_ctrl(port->serial, control_state);
} else {
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
}
}
@@ -799,20 +798,19 @@ static void mct_u232_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
unsigned int control_state;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
if ((priv->rx_flags & THROTTLED) && C_CRTSCTS(tty)) {
priv->rx_flags &= ~THROTTLED;
priv->control_state |= TIOCM_RTS;
control_state = priv->control_state;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
(void) mct_u232_set_modem_ctrl(port->serial, control_state);
} else {
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
}
}
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 1085a577c5c..80f59b6350c 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -314,21 +314,24 @@ static void opticon_unthrottle(struct tty_struct *tty)
struct usb_serial_port *port = tty->driver_data;
struct opticon_private *priv = usb_get_serial_data(port->serial);
unsigned long flags;
- int result;
+ int result, was_throttled;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
priv->throttled = false;
+ was_throttled = priv->actually_throttled;
priv->actually_throttled = false;
spin_unlock_irqrestore(&priv->lock, flags);
priv->bulk_read_urb->dev = port->serial->dev;
- result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
+ if (was_throttled) {
+ result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC);
+ if (result)
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
__func__, result);
+ }
}
static int opticon_tiocmget(struct tty_struct *tty, struct file *file)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index f66e3988321..43c22702756 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -165,6 +165,7 @@ static int option_resume(struct usb_serial *serial);
#define HUAWEI_PRODUCT_E143D 0x143D
#define HUAWEI_PRODUCT_E143E 0x143E
#define HUAWEI_PRODUCT_E143F 0x143F
+#define HUAWEI_PRODUCT_E14AC 0x14AC
#define QUANTA_VENDOR_ID 0x0408
#define QUANTA_PRODUCT_Q101 0xEA02
@@ -318,6 +319,7 @@ static int option_resume(struct usb_serial *serial);
/* TOSHIBA PRODUCTS */
#define TOSHIBA_VENDOR_ID 0x0930
#define TOSHIBA_PRODUCT_HSDPA_MINICARD 0x1302
+#define TOSHIBA_PRODUCT_G450 0x0d45
#define ALINK_VENDOR_ID 0x1e0e
#define ALINK_PRODUCT_3GU 0x9200
@@ -424,6 +426,7 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
+ { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
@@ -581,6 +584,7 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4519) },
+ { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_G450) },
{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */
{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 0f4a70ce382..c644e26394b 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -288,7 +288,7 @@ static void setup_line(struct work_struct *work)
dbg("%s(): submitting interrupt urb", __func__);
port->interrupt_in_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result != 0) {
dev_err(&port->dev, "%s(): usb_submit_urb() failed"
" with error %d\n", __func__, result);
@@ -335,7 +335,7 @@ void send_data(struct work_struct *work)
dbg("%s(): submitting interrupt urb", __func__);
port->interrupt_in_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
if (result != 0) {
dev_err(&port->dev, "%s(): usb_submit_urb() failed"
" with error %d\n", __func__, result);
@@ -349,7 +349,7 @@ void send_data(struct work_struct *work)
port->write_urb->transfer_buffer_length = count;
port->write_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->write_urb, GFP_NOIO);
if (result != 0) {
dev_err(&port->dev, "%s(): usb_submit_urb() failed"
" with error %d\n", __func__, result);
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 1128e01525b..9ec1a49e236 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -1046,13 +1046,15 @@ static void pl2303_push_data(struct tty_struct *tty,
/* overrun is special, not associated with a char */
if (line_status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- if (port->console && port->sysrq) {
+
+ if (tty_flag == TTY_NORMAL && !(port->console && port->sysrq))
+ tty_insert_flip_string(tty, data, urb->actual_length);
+ else {
int i;
for (i = 0; i < urb->actual_length; ++i)
if (!usb_serial_handle_sysrq_char(tty, port, data[i]))
tty_insert_flip_char(tty, data[i], tty_flag);
- } else
- tty_insert_flip_string(tty, data, urb->actual_length);
+ }
tty_flip_buffer_push(tty);
}
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 8c075b2416b..45883988a00 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -17,7 +17,7 @@
Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
*/
-#define DRIVER_VERSION "v.1.3.7"
+#define DRIVER_VERSION "v.1.3.8"
#define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer"
#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index cb7e95f9fcb..b282c0f2d8e 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -165,34 +165,36 @@ static void symbol_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct symbol_private *priv = usb_get_serial_data(port->serial);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->throttled = true;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
}
static void symbol_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct symbol_private *priv = usb_get_serial_data(port->serial);
- unsigned long flags;
int result;
+ bool was_throttled;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->throttled = false;
+ was_throttled = priv->actually_throttled;
priv->actually_throttled = false;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
priv->int_urb->dev = port->serial->dev;
- result = usb_submit_urb(priv->int_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
+ if (was_throttled) {
+ result = usb_submit_urb(priv->int_urb, GFP_KERNEL);
+ if (result)
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
__func__, result);
+ }
}
static int symbol_startup(struct usb_serial *serial)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index aa6b2ae951a..bd3fa7ff15b 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -156,7 +156,8 @@ static void destroy_serial(struct kref *kref)
if (serial->minor != SERIAL_TTY_NO_MINOR)
return_serial(serial);
- serial->type->release(serial);
+ if (serial->attached)
+ serial->type->release(serial);
/* Now that nothing is using the ports, they can be freed */
for (i = 0; i < serial->num_port_pointers; ++i) {
@@ -1059,12 +1060,15 @@ int usb_serial_probe(struct usb_interface *interface,
module_put(type->driver.owner);
if (retval < 0)
goto probe_error;
+ serial->attached = 1;
if (retval > 0) {
/* quietly accept this device, but don't bind to a
serial port as it's about to disappear */
serial->num_ports = 0;
goto exit;
}
+ } else {
+ serial->attached = 1;
}
if (get_free_serial(serial, num_ports, &minor) == NULL) {
@@ -1164,8 +1168,10 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
if (serial->type->suspend) {
r = serial->type->suspend(serial, message);
- if (r < 0)
+ if (r < 0) {
+ serial->suspending = 0;
goto err_out;
+ }
}
for (i = 0; i < serial->num_ports; ++i) {
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 1aa5d20a5d9..ad1f9232292 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -513,7 +513,8 @@ static void visor_read_bulk_callback(struct urb *urb)
tty_kref_put(tty);
}
spin_lock(&priv->lock);
- priv->bytes_in += available_room;
+ if (tty)
+ priv->bytes_in += available_room;
} else {
spin_lock(&priv->lock);
@@ -582,12 +583,11 @@ static void visor_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct visor_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->throttled = 1;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
}
@@ -595,21 +595,23 @@ static void visor_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct visor_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
- int result;
+ int result, was_throttled;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);
priv->throttled = 0;
+ was_throttled = priv->actually_throttled;
priv->actually_throttled = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irq(&priv->lock);
- port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
+ if (was_throttled) {
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ if (result)
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
__func__, result);
+ }
}
static int palm_os_3_probe(struct usb_serial *serial,
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 62424eec33e..1093d2eb046 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -949,13 +949,12 @@ static void whiteheat_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&info->lock, flags);
+ spin_lock_irq(&info->lock);
info->flags |= THROTTLED;
- spin_unlock_irqrestore(&info->lock, flags);
+ spin_unlock_irq(&info->lock);
return;
}
@@ -966,14 +965,13 @@ static void whiteheat_unthrottle(struct tty_struct *tty)
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
int actually_throttled;
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&info->lock, flags);
+ spin_lock_irq(&info->lock);
actually_throttled = info->flags & ACTUALLY_THROTTLED;
info->flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- spin_unlock_irqrestore(&info->lock, flags);
+ spin_unlock_irq(&info->lock);
if (actually_throttled)
rx_data_softint(&info->rx_work);
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index e20dc525d17..3a4fb023af7 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -768,17 +768,32 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
/* set the result so the higher layers expect this data */
srb->result = SAM_STAT_CHECK_CONDITION;
- /* If things are really okay, then let's show that. Zero
- * out the sense buffer so the higher layers won't realize
- * we did an unsolicited auto-sense. */
- if (result == USB_STOR_TRANSPORT_GOOD &&
- /* Filemark 0, ignore EOM, ILI 0, no sense */
+ /* We often get empty sense data. This could indicate that
+ * everything worked or that there was an unspecified
+ * problem. We have to decide which.
+ */
+ if ( /* Filemark 0, ignore EOM, ILI 0, no sense */
(srb->sense_buffer[2] & 0xaf) == 0 &&
/* No ASC or ASCQ */
srb->sense_buffer[12] == 0 &&
srb->sense_buffer[13] == 0) {
- srb->result = SAM_STAT_GOOD;
- srb->sense_buffer[0] = 0x0;
+
+ /* If things are really okay, then let's show that.
+ * Zero out the sense buffer so the higher layers
+ * won't realize we did an unsolicited auto-sense.
+ */
+ if (result == USB_STOR_TRANSPORT_GOOD) {
+ srb->result = SAM_STAT_GOOD;
+ srb->sense_buffer[0] = 0x0;
+
+ /* If there was a problem, report an unspecified
+ * hardware error to prevent the higher layers from
+ * entering an infinite retry loop.
+ */
+ } else {
+ srb->result = DID_ERROR << 16;
+ srb->sense_buffer[2] = HARDWARE_ERROR;
+ }
}
}
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 079ae0f7bec..d4f034ebaa8 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1823,6 +1823,13 @@ UNUSUAL_DEV( 0x4102, 0x1020, 0x0100, 0x0100,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
+/* Reported by Sergey Pinaev <dfo@antex.ru> */
+UNUSUAL_DEV( 0x4102, 0x1059, 0x0000, 0x0000,
+ "iRiver",
+ "P7K",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_MAX_SECTORS_64 ),
+
/*
* David Härdeman <david@2gen.com>
* The key makes the SCSI stack print confusing (but harmless) messages