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-rw-r--r--drivers/usb/serial/ark3116.c24
-rw-r--r--drivers/usb/serial/ch341.c52
-rw-r--r--drivers/usb/serial/ftdi_sio.c7
-rw-r--r--drivers/usb/serial/ftdi_sio.h10
-rw-r--r--drivers/usb/serial/generic.c206
-rw-r--r--drivers/usb/serial/iuu_phoenix.c115
-rw-r--r--drivers/usb/serial/moto_modem.c2
-rw-r--r--drivers/usb/serial/option.c138
-rw-r--r--drivers/usb/serial/pl2303.c71
-rw-r--r--drivers/usb/serial/pl2303.h4
-rw-r--r--drivers/usb/serial/sierra.c157
-rw-r--r--drivers/usb/serial/usb-serial.c23
12 files changed, 676 insertions, 133 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 5d25d3e52bf..131e61adaaf 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -31,10 +31,20 @@ static int debug;
static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x6547, 0x0232) },
+ { USB_DEVICE(0x18ec, 0x3118) }, /* USB to IrDA adapter */
{ },
};
MODULE_DEVICE_TABLE(usb, id_table);
+static int is_irda(struct usb_serial *serial)
+{
+ struct usb_device *dev = serial->dev;
+ if (le16_to_cpu(dev->descriptor.idVendor) == 0x18ec &&
+ le16_to_cpu(dev->descriptor.idProduct) == 0x3118)
+ return 1;
+ return 0;
+}
+
static inline void ARK3116_SND(struct usb_serial *serial, int seq,
__u8 request, __u8 requesttype,
__u16 value, __u16 index)
@@ -84,11 +94,21 @@ static int ark3116_attach(struct usb_serial *serial)
return -ENOMEM;
}
+ if (is_irda(serial))
+ dbg("IrDA mode");
+
/* 3 */
ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002);
ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001);
ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008);
- ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B);
+ ARK3116_SND(serial, 6, 0xFE, 0x40, is_irda(serial) ? 0x0001 : 0x0000,
+ 0x000B);
+
+ if (is_irda(serial)) {
+ ARK3116_SND(serial, 1001, 0xFE, 0x40, 0x0000, 0x000C);
+ ARK3116_SND(serial, 1002, 0xFE, 0x40, 0x0041, 0x000D);
+ ARK3116_SND(serial, 1003, 0xFE, 0x40, 0x0001, 0x000A);
+ }
/* <-- seq7 */
ARK3116_RCV(serial, 7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
@@ -125,6 +145,8 @@ static int ark3116_attach(struct usb_serial *serial)
ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000);
ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001);
+ if (is_irda(serial))
+ ARK3116_SND(serial, 1004, 0xFE, 0x40, 0x0000, 0x0009);
ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 8c894a7d5dc..59eff721fcc 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -56,6 +56,18 @@
#define CH341_BAUDBASE_FACTOR 1532620800
#define CH341_BAUDBASE_DIVMAX 3
+/* Break support - the information used to implement this was gleaned from
+ * the Net/FreeBSD uchcom.c driver by Takanori Watanabe. Domo arigato.
+ */
+
+#define CH341_REQ_WRITE_REG 0x9A
+#define CH341_REQ_READ_REG 0x95
+#define CH341_REG_BREAK1 0x05
+#define CH341_REG_BREAK2 0x18
+#define CH341_NBREAK_BITS_REG1 0x01
+#define CH341_NBREAK_BITS_REG2 0x40
+
+
static int debug;
static struct usb_device_id id_table [] = {
@@ -373,6 +385,45 @@ static void ch341_set_termios(struct tty_struct *tty,
*/
}
+static void ch341_break_ctl(struct tty_struct *tty, int break_state)
+{
+ const uint16_t ch341_break_reg =
+ CH341_REG_BREAK1 | ((uint16_t) CH341_REG_BREAK2 << 8);
+ struct usb_serial_port *port = tty->driver_data;
+ int r;
+ uint16_t reg_contents;
+ uint8_t break_reg[2];
+
+ dbg("%s()", __func__);
+
+ r = ch341_control_in(port->serial->dev, CH341_REQ_READ_REG,
+ ch341_break_reg, 0, break_reg, sizeof(break_reg));
+ if (r < 0) {
+ printk(KERN_WARNING "%s: USB control read error whilst getting"
+ " break register contents.\n", __FILE__);
+ return;
+ }
+ dbg("%s - initial ch341 break register contents - reg1: %x, reg2: %x",
+ __func__, break_reg[0], break_reg[1]);
+ if (break_state != 0) {
+ dbg("%s - Enter break state requested", __func__);
+ break_reg[0] &= ~CH341_NBREAK_BITS_REG1;
+ break_reg[1] &= ~CH341_NBREAK_BITS_REG2;
+ } else {
+ dbg("%s - Leave break state requested", __func__);
+ break_reg[0] |= CH341_NBREAK_BITS_REG1;
+ break_reg[1] |= CH341_NBREAK_BITS_REG2;
+ }
+ dbg("%s - New ch341 break register contents - reg1: %x, reg2: %x",
+ __func__, break_reg[0], break_reg[1]);
+ reg_contents = (uint16_t)break_reg[0] | ((uint16_t)break_reg[1] << 8);
+ r = ch341_control_out(port->serial->dev, CH341_REQ_WRITE_REG,
+ ch341_break_reg, reg_contents);
+ if (r < 0)
+ printk(KERN_WARNING "%s: USB control write error whilst setting"
+ " break register contents.\n", __FILE__);
+}
+
static int ch341_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
@@ -576,6 +627,7 @@ static struct usb_serial_driver ch341_device = {
.close = ch341_close,
.ioctl = ch341_ioctl,
.set_termios = ch341_set_termios,
+ .break_ctl = ch341_break_ctl,
.tiocmget = ch341_tiocmget,
.tiocmset = ch341_tiocmset,
.read_int_callback = ch341_read_int_callback,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 76a17f915ee..4f883b1773d 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -176,6 +176,9 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
@@ -694,6 +697,8 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(DE_VID, WHT_PID) },
{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
+ .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
@@ -702,6 +707,8 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
+ { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
{ }, /* Optional parameter entry */
{ } /* Terminating entry */
};
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 8c92b88166a..6f31e0d7189 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -81,6 +81,9 @@
/* OpenDCC (www.opendcc.de) product id */
#define FTDI_OPENDCC_PID 0xBFD8
+#define FTDI_OPENDCC_SNIFFER_PID 0xBFD9
+#define FTDI_OPENDCC_THROTTLE_PID 0xBFDA
+#define FTDI_OPENDCC_GATEWAY_PID 0xBFDB
/* Sprog II (Andrew Crosland's SprogII DCC interface) */
#define FTDI_SPROG_II 0xF0C8
@@ -930,6 +933,7 @@
*/
#define ADI_VID 0x0456
#define ADI_GNICE_PID 0xF000
+#define ADI_GNICEPLUS_PID 0xF001
/*
* JETI SPECTROMETER SPECBOS 1201
@@ -968,6 +972,12 @@
#define MARVELL_OPENRD_PID 0x9e90
/*
+ * Hameg HO820 and HO870 interface (using VID 0x0403)
+ */
+#define HAMEG_HO820_PID 0xed74
+#define HAMEG_HO870_PID 0xed71
+
+/*
* BmRequestType: 1100 0000b
* bRequest: FTDI_E2_READ
* wValue: 0
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index d9398e9f30c..deba08c7a01 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -19,7 +19,7 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
-
+#include <linux/kfifo.h>
static int debug;
@@ -166,24 +166,6 @@ static void generic_cleanup(struct usb_serial_port *port)
}
}
-int usb_serial_generic_resume(struct usb_serial *serial)
-{
- struct usb_serial_port *port;
- int i, c = 0, r;
-
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- if (port->port.count && port->read_urb) {
- r = usb_submit_urb(port->read_urb, GFP_NOIO);
- if (r < 0)
- c++;
- }
- }
-
- return c ? -EIO : 0;
-}
-EXPORT_SYMBOL_GPL(usb_serial_generic_resume);
-
void usb_serial_generic_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
@@ -272,12 +254,81 @@ error_no_buffer:
return bwrite;
}
+/**
+ * usb_serial_generic_write_start - kick off an URB write
+ * @port: Pointer to the &struct usb_serial_port data
+ *
+ * Returns the number of bytes queued on success. This will be zero if there
+ * was nothing to send. Otherwise, it returns a negative errno value
+ */
+static int usb_serial_generic_write_start(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ unsigned char *data;
+ int result;
+ int count;
+ unsigned long flags;
+ bool start_io;
+
+ /* Atomically determine whether we can and need to start a USB
+ * operation. */
+ spin_lock_irqsave(&port->lock, flags);
+ if (port->write_urb_busy)
+ start_io = false;
+ else {
+ start_io = (__kfifo_len(port->write_fifo) != 0);
+ port->write_urb_busy = start_io;
+ }
+ spin_unlock_irqrestore(&port->lock, flags);
+
+ if (!start_io)
+ return 0;
+
+ data = port->write_urb->transfer_buffer;
+ count = kfifo_get(port->write_fifo, data, port->bulk_out_size);
+ usb_serial_debug_data(debug, &port->dev, __func__, count, data);
+
+ /* set up our urb */
+ usb_fill_bulk_urb(port->write_urb, serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress),
+ port->write_urb->transfer_buffer, count,
+ ((serial->type->write_bulk_callback) ?
+ serial->type->write_bulk_callback :
+ usb_serial_generic_write_bulk_callback),
+ port);
+
+ /* send the data out the bulk port */
+ result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ if (result) {
+ dev_err(&port->dev,
+ "%s - failed submitting write urb, error %d\n",
+ __func__, result);
+ /* don't have to grab the lock here, as we will
+ retry if != 0 */
+ port->write_urb_busy = 0;
+ } else
+ result = count;
+
+ return result;
+}
+
+/**
+ * usb_serial_generic_write - generic write function for serial USB devices
+ * @tty: Pointer to &struct tty_struct for the device
+ * @port: Pointer to the &usb_serial_port structure for the device
+ * @buf: Pointer to the data to write
+ * @count: Number of bytes to write
+ *
+ * Returns the number of characters actually written, which may be anything
+ * from zero to @count. If an error occurs, it returns the negative errno
+ * value.
+ */
int usb_serial_generic_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count)
{
struct usb_serial *serial = port->serial;
int result;
- unsigned char *data;
dbg("%s - port %d", __func__, port->number);
@@ -287,57 +338,20 @@ int usb_serial_generic_write(struct tty_struct *tty,
}
/* only do something if we have a bulk out endpoint */
- if (serial->num_bulk_out) {
- unsigned long flags;
-
- if (serial->type->max_in_flight_urbs)
- return usb_serial_multi_urb_write(tty, port,
- buf, count);
-
- spin_lock_irqsave(&port->lock, flags);
- if (port->write_urb_busy) {
- spin_unlock_irqrestore(&port->lock, flags);
- dbg("%s - already writing", __func__);
- return 0;
- }
- port->write_urb_busy = 1;
- spin_unlock_irqrestore(&port->lock, flags);
-
- count = (count > port->bulk_out_size) ?
- port->bulk_out_size : count;
-
- memcpy(port->write_urb->transfer_buffer, buf, count);
- data = port->write_urb->transfer_buffer;
- usb_serial_debug_data(debug, &port->dev, __func__, count, data);
+ if (!serial->num_bulk_out)
+ return 0;
- /* set up our urb */
- usb_fill_bulk_urb(port->write_urb, serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer, count,
- ((serial->type->write_bulk_callback) ?
- serial->type->write_bulk_callback :
- usb_serial_generic_write_bulk_callback),
- port);
+ if (serial->type->max_in_flight_urbs)
+ return usb_serial_multi_urb_write(tty, port,
+ buf, count);
- /* send the data out the bulk port */
- port->write_urb_busy = 1;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- /* don't have to grab the lock here, as we will
- retry if != 0 */
- port->write_urb_busy = 0;
- } else
- result = count;
+ count = kfifo_put(port->write_fifo, buf, count);
+ result = usb_serial_generic_write_start(port);
- return result;
- }
+ if (result >= 0)
+ result = count;
- /* no bulk out, so return 0 bytes written */
- return 0;
+ return result;
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write);
@@ -355,9 +369,8 @@ int usb_serial_generic_write_room(struct tty_struct *tty)
room = port->bulk_out_size *
(serial->type->max_in_flight_urbs -
port->urbs_in_flight);
- } else if (serial->num_bulk_out && !(port->write_urb_busy)) {
- room = port->bulk_out_size;
- }
+ } else if (serial->num_bulk_out)
+ room = port->write_fifo->size - __kfifo_len(port->write_fifo);
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - returns %d", __func__, room);
@@ -377,11 +390,8 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
spin_lock_irqsave(&port->lock, flags);
chars = port->tx_bytes_flight;
spin_unlock_irqrestore(&port->lock, flags);
- } else if (serial->num_bulk_out) {
- /* FIXME: Locking */
- if (port->write_urb_busy)
- chars = port->write_urb->transfer_buffer_length;
- }
+ } else if (serial->num_bulk_out)
+ chars = kfifo_len(port->write_fifo);
dbg("%s - returns %d", __func__, chars);
return chars;
@@ -485,16 +495,23 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb)
if (port->urbs_in_flight < 0)
port->urbs_in_flight = 0;
spin_unlock_irqrestore(&port->lock, flags);
+
+ if (status) {
+ dbg("%s - nonzero multi-urb write bulk status "
+ "received: %d", __func__, status);
+ return;
+ }
} else {
- /* Handle the case for single urb mode */
port->write_urb_busy = 0;
- }
- if (status) {
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- return;
+ if (status) {
+ dbg("%s - nonzero multi-urb write bulk status "
+ "received: %d", __func__, status);
+ kfifo_reset(port->write_fifo);
+ } else
+ usb_serial_generic_write_start(port);
}
+
usb_serial_port_softint(port);
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback);
@@ -559,6 +576,33 @@ int usb_serial_handle_break(struct usb_serial_port *port)
}
EXPORT_SYMBOL_GPL(usb_serial_handle_break);
+int usb_serial_generic_resume(struct usb_serial *serial)
+{
+ struct usb_serial_port *port;
+ int i, c = 0, r;
+
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ if (!port->port.count)
+ continue;
+
+ if (port->read_urb) {
+ r = usb_submit_urb(port->read_urb, GFP_NOIO);
+ if (r < 0)
+ c++;
+ }
+
+ if (port->write_urb) {
+ r = usb_serial_generic_write_start(port);
+ if (r < 0)
+ c++;
+ }
+ }
+
+ return c ? -EIO : 0;
+}
+EXPORT_SYMBOL_GPL(usb_serial_generic_resume);
+
void usb_serial_generic_disconnect(struct usb_serial *serial)
{
int i;
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 6138c1cda35..e6e02b178d2 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -40,7 +40,7 @@ static int debug;
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.10"
+#define DRIVER_VERSION "v0.11"
#define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
static struct usb_device_id id_table[] = {
@@ -64,6 +64,7 @@ static int cdmode = 1;
static int iuu_cardin;
static int iuu_cardout;
static int xmas;
+static int vcc_default = 5;
static void read_rxcmd_callback(struct urb *urb);
@@ -79,6 +80,7 @@ struct iuu_private {
u8 *buf; /* used for initialize speed */
u8 *dbgbuf; /* debug buffer */
u8 len;
+ int vcc; /* vcc (either 3 or 5 V) */
};
@@ -114,6 +116,7 @@ static int iuu_startup(struct usb_serial *serial)
kfree(priv);
return -ENOMEM;
}
+ priv->vcc = vcc_default;
spin_lock_init(&priv->lock);
init_waitqueue_head(&priv->delta_msr_wait);
usb_set_serial_port_data(serial->port[0], priv);
@@ -1009,11 +1012,7 @@ static void iuu_close(struct usb_serial_port *port)
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
- msleep(1000);
- /* wait one second to free all buffers */
iuu_led(port, 0, 0, 0xF000, 0xFF);
- msleep(1000);
- usb_reset_device(port->serial->dev);
}
}
@@ -1182,6 +1181,95 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
return result;
}
+/* how to change VCC */
+static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
+{
+ int status;
+ u8 *buf;
+
+ buf = kmalloc(5, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ dbg("%s - enter", __func__);
+
+ buf[0] = IUU_SET_VCC;
+ buf[1] = vcc & 0xFF;
+ buf[2] = (vcc >> 8) & 0xFF;
+ buf[3] = (vcc >> 16) & 0xFF;
+ buf[4] = (vcc >> 24) & 0xFF;
+
+ status = bulk_immediate(port, buf, 5);
+ kfree(buf);
+
+ if (status != IUU_OPERATION_OK)
+ dbg("%s - vcc error status = %2x", __func__, status);
+ else
+ dbg("%s - vcc OK !", __func__);
+
+ return status;
+}
+
+/*
+ * Sysfs Attributes
+ */
+
+static ssize_t show_vcc_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+
+ return sprintf(buf, "%d\n", priv->vcc);
+}
+
+static ssize_t store_vcc_mode(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+ unsigned long v;
+
+ if (strict_strtoul(buf, 10, &v)) {
+ dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
+ __func__, buf);
+ goto fail_store_vcc_mode;
+ }
+
+ dbg("%s: setting vcc_mode = %ld", __func__, v);
+
+ if ((v != 3) && (v != 5)) {
+ dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
+ } else {
+ iuu_vcc_set(port, v);
+ priv->vcc = v;
+ }
+fail_store_vcc_mode:
+ return count;
+}
+
+static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
+ store_vcc_mode);
+
+static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
+{
+ dbg("%s", __func__);
+
+ return device_create_file(&port->dev, &dev_attr_vcc_mode);
+}
+
+static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
+{
+ dbg("%s", __func__);
+
+ device_remove_file(&port->dev, &dev_attr_vcc_mode);
+ return 0;
+}
+
+/*
+ * End Sysfs Attributes
+ */
+
static struct usb_serial_driver iuu_device = {
.driver = {
.owner = THIS_MODULE,
@@ -1189,6 +1277,8 @@ static struct usb_serial_driver iuu_device = {
},
.id_table = id_table,
.num_ports = 1,
+ .port_probe = iuu_create_sysfs_attrs,
+ .port_remove = iuu_remove_sysfs_attrs,
.open = iuu_open,
.close = iuu_close,
.write = iuu_uart_write,
@@ -1238,14 +1328,19 @@ module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
module_param(xmas, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(xmas, "xmas color enabled or not");
+MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
module_param(boost, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(boost, "overclock boost percent 100 to 500");
+MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
module_param(clockmode, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(clockmode, "1=3Mhz579,2=3Mhz680,3=6Mhz");
+MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
+ "3=6 Mhz)");
module_param(cdmode, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(cdmode, "Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, "
- "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING");
+MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
+ "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
+
+module_param(vcc_default, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
+ "for 5V). Default to 5.");
diff --git a/drivers/usb/serial/moto_modem.c b/drivers/usb/serial/moto_modem.c
index b66b71ccd12..99bd00f5188 100644
--- a/drivers/usb/serial/moto_modem.c
+++ b/drivers/usb/serial/moto_modem.c
@@ -8,7 +8,7 @@
* published by the Free Software Foundation.
*
* {sigh}
- * Mororola should be using the CDC ACM USB spec, but instead
+ * Motorola should be using the CDC ACM USB spec, but instead
* they try to just "do their own thing"... This driver should handle a
* few phones in which a basic "dumb serial connection" is needed to be
* able to get a connection through to them.
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index fe47051dbef..f66e3988321 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -291,6 +291,7 @@ static int option_resume(struct usb_serial *serial);
#define TELIT_VENDOR_ID 0x1bc7
#define TELIT_PRODUCT_UC864E 0x1003
+#define TELIT_PRODUCT_UC864G 0x1004
/* ZTE PRODUCTS */
#define ZTE_VENDOR_ID 0x19d2
@@ -299,6 +300,7 @@ static int option_resume(struct usb_serial *serial);
#define ZTE_PRODUCT_MF626 0x0031
#define ZTE_PRODUCT_CDMA_TECH 0xfffe
#define ZTE_PRODUCT_AC8710 0xfff1
+#define ZTE_PRODUCT_AC2726 0xfff5
#define BENQ_VENDOR_ID 0x04a5
#define BENQ_PRODUCT_H10 0x4068
@@ -502,6 +504,7 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
{ USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864G) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0003, 0xff, 0xff, 0xff) },
@@ -571,6 +574,7 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) },
{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
{ USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) },
@@ -592,6 +596,7 @@ static struct usb_driver option_driver = {
#ifdef CONFIG_PM
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
+ .supports_autosuspend = 1,
#endif
.id_table = option_ids,
.no_dynamic_id = 1,
@@ -639,6 +644,12 @@ static int debug;
#define IN_BUFLEN 4096
#define OUT_BUFLEN 4096
+struct option_intf_private {
+ spinlock_t susp_lock;
+ unsigned int suspended:1;
+ int in_flight;
+};
+
struct option_port_private {
/* Input endpoints and buffer for this port */
struct urb *in_urbs[N_IN_URB];
@@ -647,6 +658,8 @@ struct option_port_private {
struct urb *out_urbs[N_OUT_URB];
u8 *out_buffer[N_OUT_URB];
unsigned long out_busy; /* Bit vector of URBs in use */
+ int opened;
+ struct usb_anchor delayed;
/* Settings for the port */
int rts_state; /* Handshaking pins (outputs) */
@@ -693,12 +706,17 @@ module_exit(option_exit);
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
+ struct option_intf_private *data;
/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
serial->interface->cur_altsetting->desc.bInterfaceClass == 0x8)
return -ENODEV;
+ data = serial->private = kzalloc(sizeof(struct option_intf_private), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ spin_lock_init(&data->susp_lock);
return 0;
}
@@ -755,12 +773,15 @@ static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct option_port_private *portdata;
+ struct option_intf_private *intfdata;
int i;
int left, todo;
struct urb *this_urb = NULL; /* spurious */
int err;
+ unsigned long flags;
portdata = usb_get_serial_port_data(port);
+ intfdata = port->serial->private;
dbg("%s: write (%d chars)", __func__, count);
@@ -782,17 +803,33 @@ static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
dbg("%s: endpoint %d buf %d", __func__,
usb_pipeendpoint(this_urb->pipe), i);
+ err = usb_autopm_get_interface_async(port->serial->interface);
+ if (err < 0)
+ break;
+
/* send the data */
memcpy(this_urb->transfer_buffer, buf, todo);
this_urb->transfer_buffer_length = todo;
- err = usb_submit_urb(this_urb, GFP_ATOMIC);
- if (err) {
- dbg("usb_submit_urb %p (write bulk) failed "
- "(%d)", this_urb, err);
- clear_bit(i, &portdata->out_busy);
- continue;
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+ if (intfdata->suspended) {
+ usb_anchor_urb(this_urb, &portdata->delayed);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ } else {
+ intfdata->in_flight++;
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ err = usb_submit_urb(this_urb, GFP_ATOMIC);
+ if (err) {
+ dbg("usb_submit_urb %p (write bulk) failed "
+ "(%d)", this_urb, err);
+ clear_bit(i, &portdata->out_busy);
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+ intfdata->in_flight--;
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ continue;
+ }
}
+
portdata->tx_start_time[i] = jiffies;
buf += todo;
left -= todo;
@@ -836,7 +873,10 @@ static void option_indat_callback(struct urb *urb)
if (err)
printk(KERN_ERR "%s: resubmit read urb failed. "
"(%d)", __func__, err);
+ else
+ usb_mark_last_busy(port->serial->dev);
}
+
}
return;
}
@@ -845,15 +885,21 @@ static void option_outdat_callback(struct urb *urb)
{
struct usb_serial_port *port;
struct option_port_private *portdata;
+ struct option_intf_private *intfdata;
int i;
dbg("%s", __func__);
port = urb->context;
+ intfdata = port->serial->private;
usb_serial_port_softint(port);
-
+ usb_autopm_put_interface_async(port->serial->interface);
portdata = usb_get_serial_port_data(port);
+ spin_lock(&intfdata->susp_lock);
+ intfdata->in_flight--;
+ spin_unlock(&intfdata->susp_lock);
+
for (i = 0; i < N_OUT_URB; ++i) {
if (portdata->out_urbs[i] == urb) {
smp_mb__before_clear_bit();
@@ -963,10 +1009,13 @@ static int option_chars_in_buffer(struct tty_struct *tty)
static int option_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct option_port_private *portdata;
+ struct option_intf_private *intfdata;
+ struct usb_serial *serial = port->serial;
int i, err;
struct urb *urb;
portdata = usb_get_serial_port_data(port);
+ intfdata = serial->private;
dbg("%s", __func__);
@@ -985,6 +1034,12 @@ static int option_open(struct tty_struct *tty, struct usb_serial_port *port)
option_send_setup(port);
+ serial->interface->needs_remote_wakeup = 1;
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ usb_autopm_put_interface(serial->interface);
+
return 0;
}
@@ -1009,16 +1064,23 @@ static void option_close(struct usb_serial_port *port)
int i;
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
+ struct option_intf_private *intfdata = port->serial->private;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
if (serial->dev) {
/* Stop reading/writing urbs */
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
+ usb_autopm_get_interface(serial->interface);
+ serial->interface->needs_remote_wakeup = 0;
}
}
@@ -1123,6 +1185,7 @@ static int option_startup(struct usb_serial *serial)
__func__, i);
return 1;
}
+ init_usb_anchor(&portdata->delayed);
for (j = 0; j < N_IN_URB; j++) {
buffer = (u8 *)__get_free_page(GFP_KERNEL);
@@ -1225,18 +1288,52 @@ static void option_release(struct usb_serial *serial)
#ifdef CONFIG_PM
static int option_suspend(struct usb_serial *serial, pm_message_t message)
{
+ struct option_intf_private *intfdata = serial->private;
+ int b;
+
dbg("%s entered", __func__);
+
+ if (serial->dev->auto_pm) {
+ spin_lock_irq(&intfdata->susp_lock);
+ b = intfdata->in_flight;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+ if (b)
+ return -EBUSY;
+ }
+
+ spin_lock_irq(&intfdata->susp_lock);
+ intfdata->suspended = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
stop_read_write_urbs(serial);
return 0;
}
+static void play_delayed(struct usb_serial_port *port)
+{
+ struct option_intf_private *data;
+ struct option_port_private *portdata;
+ struct urb *urb;
+ int err;
+
+ portdata = usb_get_serial_port_data(port);
+ data = port->serial->private;
+ while ((urb = usb_get_from_anchor(&portdata->delayed))) {
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (!err)
+ data->in_flight++;
+ }
+}
+
static int option_resume(struct usb_serial *serial)
{
- int err, i, j;
+ int i, j;
struct usb_serial_port *port;
- struct urb *urb;
+ struct option_intf_private *intfdata = serial->private;
struct option_port_private *portdata;
+ struct urb *urb;
+ int err = 0;
dbg("%s entered", __func__);
/* get the interrupt URBs resubmitted unconditionally */
@@ -1251,7 +1348,7 @@ static int option_resume(struct usb_serial *serial)
if (err < 0) {
err("%s: Error %d for interrupt URB of port%d",
__func__, err, i);
- return err;
+ goto err_out;
}
}
@@ -1259,27 +1356,32 @@ static int option_resume(struct usb_serial *serial)
/* walk all ports */
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
- mutex_lock(&port->mutex);
/* skip closed ports */
- if (!port->port.count) {
- mutex_unlock(&port->mutex);
+ spin_lock_irq(&intfdata->susp_lock);
+ if (!portdata->opened) {
+ spin_unlock_irq(&intfdata->susp_lock);
continue;
}
for (j = 0; j < N_IN_URB; j++) {
urb = portdata->in_urbs[j];
- err = usb_submit_urb(urb, GFP_NOIO);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0) {
- mutex_unlock(&port->mutex);
err("%s: Error %d for bulk URB %d",
__func__, err, i);
- return err;
+ spin_unlock_irq(&intfdata->susp_lock);
+ goto err_out;
}
}
- mutex_unlock(&port->mutex);
+ play_delayed(port);
+ spin_unlock_irq(&intfdata->susp_lock);
}
- return 0;
+ spin_lock_irq(&intfdata->susp_lock);
+ intfdata->suspended = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+err_out:
+ return err;
}
#endif
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index a63ea99936f..1128e01525b 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -96,6 +96,7 @@ static struct usb_device_id id_table [] = {
{ USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) },
{ USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) },
{ USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) },
+ { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) },
{ } /* Terminating entry */
};
@@ -527,6 +528,12 @@ static void pl2303_set_termios(struct tty_struct *tty,
int baud;
int i;
u8 control;
+ const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600,
+ 4800, 7200, 9600, 14400, 19200, 28800, 38400,
+ 57600, 115200, 230400, 460800, 614400,
+ 921600, 1228800, 2457600, 3000000, 6000000 };
+ int baud_floor, baud_ceil;
+ int k;
dbg("%s - port %d", __func__, port->number);
@@ -572,9 +579,39 @@ static void pl2303_set_termios(struct tty_struct *tty,
dbg("%s - data bits = %d", __func__, buf[6]);
}
+ /* For reference buf[0]:buf[3] baud rate value */
+ /* NOTE: Only the values defined in baud_sup are supported !
+ * => if unsupported values are set, the PL2303 seems to use
+ * 9600 baud (at least my PL2303X always does)
+ */
baud = tty_get_baud_rate(tty);
- dbg("%s - baud = %d", __func__, baud);
+ dbg("%s - baud requested = %d", __func__, baud);
if (baud) {
+ /* Set baudrate to nearest supported value */
+ for (k=0; k<ARRAY_SIZE(baud_sup); k++) {
+ if (baud_sup[k] / baud) {
+ baud_ceil = baud_sup[k];
+ if (k==0) {
+ baud = baud_ceil;
+ } else {
+ baud_floor = baud_sup[k-1];
+ if ((baud_ceil % baud)
+ > (baud % baud_floor))
+ baud = baud_floor;
+ else
+ baud = baud_ceil;
+ }
+ break;
+ }
+ }
+ if (baud > 1228800) {
+ /* type_0, type_1 only support up to 1228800 baud */
+ if (priv->type != HX)
+ baud = 1228800;
+ else if (baud > 6000000)
+ baud = 6000000;
+ }
+ dbg("%s - baud set = %d", __func__, baud);
buf[0] = baud & 0xff;
buf[1] = (baud >> 8) & 0xff;
buf[2] = (baud >> 16) & 0xff;
@@ -585,8 +622,16 @@ static void pl2303_set_termios(struct tty_struct *tty,
/* For reference buf[4]=1 is 1.5 stop bits */
/* For reference buf[4]=2 is 2 stop bits */
if (cflag & CSTOPB) {
- buf[4] = 2;
- dbg("%s - stop bits = 2", __func__);
+ /* NOTE: Comply with "real" UARTs / RS232:
+ * use 1.5 instead of 2 stop bits with 5 data bits
+ */
+ if ((cflag & CSIZE) == CS5) {
+ buf[4] = 1;
+ dbg("%s - stop bits = 1.5", __func__);
+ } else {
+ buf[4] = 2;
+ dbg("%s - stop bits = 2", __func__);
+ }
} else {
buf[4] = 0;
dbg("%s - stop bits = 1", __func__);
@@ -599,11 +644,21 @@ static void pl2303_set_termios(struct tty_struct *tty,
/* For reference buf[5]=3 is mark parity */
/* For reference buf[5]=4 is space parity */
if (cflag & PARODD) {
- buf[5] = 1;
- dbg("%s - parity = odd", __func__);
+ if (cflag & CMSPAR) {
+ buf[5] = 3;
+ dbg("%s - parity = mark", __func__);
+ } else {
+ buf[5] = 1;
+ dbg("%s - parity = odd", __func__);
+ }
} else {
- buf[5] = 2;
- dbg("%s - parity = even", __func__);
+ if (cflag & CMSPAR) {
+ buf[5] = 4;
+ dbg("%s - parity = space", __func__);
+ } else {
+ buf[5] = 2;
+ dbg("%s - parity = even", __func__);
+ }
}
} else {
buf[5] = 0;
@@ -647,7 +702,7 @@ static void pl2303_set_termios(struct tty_struct *tty,
pl2303_vendor_write(0x0, 0x0, serial);
}
- /* FIXME: Need to read back resulting baud rate */
+ /* Save resulting baud rate */
if (baud)
tty_encode_baud_rate(tty, baud, baud);
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index ee9505e1dd9..d640dc95156 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -130,3 +130,7 @@
/* Sony, USB data cable for CMD-Jxx mobile phones */
#define SONY_VENDOR_ID 0x054c
#define SONY_QN3USB_PRODUCT_ID 0x0437
+
+/* Sanwa KB-USB2 multimeter cable (ID: 11ad:0001) */
+#define SANWA_VENDOR_ID 0x11ad
+#define SANWA_PRODUCT_ID 0x0001
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 55391bbe123..68fa0e43b78 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -51,6 +51,12 @@ struct sierra_iface_info {
const u8 *ifaceinfo; /* pointer to the array holding the numbers */
};
+struct sierra_intf_private {
+ spinlock_t susp_lock;
+ unsigned int suspended:1;
+ int in_flight;
+};
+
static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
{
int result;
@@ -144,6 +150,7 @@ static int sierra_probe(struct usb_serial *serial,
{
int result = 0;
struct usb_device *udev;
+ struct sierra_intf_private *data;
u8 ifnum;
udev = serial->dev;
@@ -171,6 +178,11 @@ static int sierra_probe(struct usb_serial *serial,
return -ENODEV;
}
+ data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ spin_lock_init(&data->susp_lock);
+
return result;
}
@@ -261,13 +273,18 @@ static struct usb_driver sierra_driver = {
.name = "sierra",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
+ .suspend = usb_serial_suspend,
+ .resume = usb_serial_resume,
.id_table = id_table,
.no_dynamic_id = 1,
+ .supports_autosuspend = 1,
};
struct sierra_port_private {
spinlock_t lock; /* lock the structure */
int outstanding_urbs; /* number of out urbs in flight */
+ struct usb_anchor active;
+ struct usb_anchor delayed;
/* Input endpoints and buffers for this port */
struct urb *in_urbs[N_IN_URB];
@@ -279,6 +296,8 @@ struct sierra_port_private {
int dsr_state;
int dcd_state;
int ri_state;
+
+ unsigned int opened:1;
};
static int sierra_send_setup(struct usb_serial_port *port)
@@ -390,21 +409,25 @@ static void sierra_outdat_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct sierra_intf_private *intfdata;
int status = urb->status;
- unsigned long flags;
dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
+ intfdata = port->serial->private;
/* free up the transfer buffer, as usb_free_urb() does not do this */
kfree(urb->transfer_buffer);
-
+ usb_autopm_put_interface_async(port->serial->interface);
if (status)
dev_dbg(&port->dev, "%s - nonzero write bulk status "
"received: %d\n", __func__, status);
- spin_lock_irqsave(&portdata->lock, flags);
+ spin_lock(&portdata->lock);
--portdata->outstanding_urbs;
- spin_unlock_irqrestore(&portdata->lock, flags);
+ spin_unlock(&portdata->lock);
+ spin_lock(&intfdata->susp_lock);
+ --intfdata->in_flight;
+ spin_unlock(&intfdata->susp_lock);
usb_serial_port_softint(port);
}
@@ -414,6 +437,7 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct sierra_intf_private *intfdata;
struct usb_serial *serial = port->serial;
unsigned long flags;
unsigned char *buffer;
@@ -426,9 +450,9 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
return 0;
portdata = usb_get_serial_port_data(port);
+ intfdata = serial->private;
dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize);
-
spin_lock_irqsave(&portdata->lock, flags);
dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__,
portdata->outstanding_urbs);
@@ -442,6 +466,14 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
portdata->outstanding_urbs);
spin_unlock_irqrestore(&portdata->lock, flags);
+ retval = usb_autopm_get_interface_async(serial->interface);
+ if (retval < 0) {
+ spin_lock_irqsave(&portdata->lock, flags);
+ portdata->outstanding_urbs--;
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ goto error_simple;
+ }
+
buffer = kmalloc(writesize, GFP_ATOMIC);
if (!buffer) {
dev_err(&port->dev, "out of memory\n");
@@ -468,14 +500,29 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
/* Handle the need to send a zero length packet */
urb->transfer_flags |= URB_ZERO_PACKET;
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+
+ if (intfdata->suspended) {
+ usb_anchor_urb(urb, &portdata->delayed);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ goto skip_power;
+ } else {
+ usb_anchor_urb(urb, &portdata->active);
+ }
/* send it down the pipe */
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval) {
+ usb_unanchor_urb(urb);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
"with status = %d\n", __func__, retval);
goto error;
+ } else {
+ intfdata->in_flight++;
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
}
+skip_power:
/* we are done with this urb, so let the host driver
* really free it when it is finished with it */
usb_free_urb(urb);
@@ -491,6 +538,8 @@ error_no_buffer:
dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__,
portdata->outstanding_urbs);
spin_unlock_irqrestore(&portdata->lock, flags);
+ usb_autopm_put_interface_async(serial->interface);
+error_simple:
return retval;
}
@@ -530,6 +579,7 @@ static void sierra_indat_callback(struct urb *urb)
/* Resubmit urb so we continue receiving */
if (port->port.count && status != -ESHUTDOWN && status != -EPERM) {
+ usb_mark_last_busy(port->serial->dev);
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
dev_err(&port->dev, "resubmit read urb failed."
@@ -591,6 +641,7 @@ static void sierra_instat_callback(struct urb *urb)
/* Resubmit urb so we continue receiving IRQ data */
if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) {
+ usb_mark_last_busy(serial->dev);
urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
@@ -711,6 +762,8 @@ static void sierra_close(struct usb_serial_port *port)
int i;
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
+ struct sierra_intf_private *intfdata = port->serial->private;
+
dev_dbg(&port->dev, "%s\n", __func__);
portdata = usb_get_serial_port_data(port);
@@ -723,6 +776,10 @@ static void sierra_close(struct usb_serial_port *port)
if (!serial->disconnected)
sierra_send_setup(port);
mutex_unlock(&serial->disc_mutex);
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
/* Stop reading urbs */
sierra_stop_rx_urbs(port);
@@ -731,6 +788,8 @@ static void sierra_close(struct usb_serial_port *port)
sierra_release_urb(portdata->in_urbs[i]);
portdata->in_urbs[i] = NULL;
}
+ usb_autopm_get_interface(serial->interface);
+ serial->interface->needs_remote_wakeup = 0;
}
}
@@ -738,6 +797,7 @@ static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct sierra_port_private *portdata;
struct usb_serial *serial = port->serial;
+ struct sierra_intf_private *intfdata = serial->private;
int i;
int err;
int endpoint;
@@ -771,6 +831,12 @@ static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
}
sierra_send_setup(port);
+ serial->interface->needs_remote_wakeup = 1;
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ usb_autopm_put_interface(serial->interface);
+
return 0;
}
@@ -818,6 +884,8 @@ static int sierra_startup(struct usb_serial *serial)
return -ENOMEM;
}
spin_lock_init(&portdata->lock);
+ init_usb_anchor(&portdata->active);
+ init_usb_anchor(&portdata->delayed);
/* Set the port private data pointer */
usb_set_serial_port_data(port, portdata);
}
@@ -844,6 +912,83 @@ static void sierra_release(struct usb_serial *serial)
}
}
+static void stop_read_write_urbs(struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct sierra_port_private *portdata;
+
+ /* Stop reading/writing urbs */
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+ for (j = 0; j < N_IN_URB; j++)
+ usb_kill_urb(portdata->in_urbs[j]);
+ usb_kill_anchored_urbs(&portdata->active);
+ }
+}
+
+static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
+{
+ struct sierra_intf_private *intfdata;
+ int b;
+
+ if (serial->dev->auto_pm) {
+ intfdata = serial->private;
+ spin_lock_irq(&intfdata->susp_lock);
+ b = intfdata->in_flight;
+
+ if (b) {
+ spin_unlock_irq(&intfdata->susp_lock);
+ return -EBUSY;
+ } else {
+ intfdata->suspended = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ }
+ }
+ stop_read_write_urbs(serial);
+
+ return 0;
+}
+
+static int sierra_resume(struct usb_serial *serial)
+{
+ struct usb_serial_port *port;
+ struct sierra_intf_private *intfdata = serial->private;
+ struct sierra_port_private *portdata;
+ struct urb *urb;
+ int ec = 0;
+ int i, err;
+
+ spin_lock_irq(&intfdata->susp_lock);
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+
+ while ((urb = usb_get_from_anchor(&portdata->delayed))) {
+ usb_anchor_urb(urb, &portdata->active);
+ intfdata->in_flight++;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ intfdata->in_flight--;
+ usb_unanchor_urb(urb);
+ usb_scuttle_anchored_urbs(&portdata->delayed);
+ break;
+ }
+ }
+
+ if (portdata->opened) {
+ err = sierra_submit_rx_urbs(port, GFP_ATOMIC);
+ if (err)
+ ec++;
+ }
+ }
+ intfdata->suspended = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+ return ec ? -EIO : 0;
+}
+
static struct usb_serial_driver sierra_device = {
.driver = {
.owner = THIS_MODULE,
@@ -864,6 +1009,8 @@ static struct usb_serial_driver sierra_device = {
.tiocmset = sierra_tiocmset,
.attach = sierra_startup,
.release = sierra_release,
+ .suspend = sierra_suspend,
+ .resume = sierra_resume,
.read_int_callback = sierra_instat_callback,
};
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 9d7ca4868d3..ff75a3589e7 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -35,6 +35,7 @@
#include <linux/serial.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/kfifo.h>
#include "pl2303.h"
/*
@@ -292,8 +293,6 @@ static int serial_open(struct tty_struct *tty, struct file *filp)
static void serial_down(struct usb_serial_port *port)
{
struct usb_serial_driver *drv = port->serial->type;
- struct usb_serial *serial;
- struct module *owner;
/*
* The console is magical. Do not hang up the console hardware
@@ -309,12 +308,8 @@ static void serial_down(struct usb_serial_port *port)
return;
mutex_lock(&port->mutex);
- serial = port->serial;
- owner = serial->type->driver.owner;
-
if (drv->close)
drv->close(port);
-
mutex_unlock(&port->mutex);
}
@@ -631,6 +626,8 @@ static void port_release(struct device *dev)
usb_free_urb(port->write_urb);
usb_free_urb(port->interrupt_in_urb);
usb_free_urb(port->interrupt_out_urb);
+ if (!IS_ERR(port->write_fifo) && port->write_fifo)
+ kfifo_free(port->write_fifo);
kfree(port->bulk_in_buffer);
kfree(port->bulk_out_buffer);
kfree(port->interrupt_in_buffer);
@@ -970,6 +967,10 @@ int usb_serial_probe(struct usb_interface *interface,
dev_err(&interface->dev, "No free urbs available\n");
goto probe_error;
}
+ port->write_fifo = kfifo_alloc(PAGE_SIZE, GFP_KERNEL,
+ &port->lock);
+ if (IS_ERR(port->write_fifo))
+ goto probe_error;
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->bulk_out_size = buffer_size;
port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
@@ -1163,15 +1164,19 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
serial->suspending = 1;
+ if (serial->type->suspend) {
+ r = serial->type->suspend(serial, message);
+ if (r < 0)
+ goto err_out;
+ }
+
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
- if (serial->type->suspend)
- r = serial->type->suspend(serial, message);
-
+err_out:
return r;
}
EXPORT_SYMBOL(usb_serial_suspend);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-08 07:44:52 +0000