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path: root/drivers/usb/serial/io_ti.c
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Diffstat (limited to 'drivers/usb/serial/io_ti.c')
-rw-r--r--drivers/usb/serial/io_ti.c134
1 files changed, 96 insertions, 38 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 544098d2b77..b8670905bc3 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -48,7 +48,7 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.7"
+#define DRIVER_VERSION "v0.7mode043006"
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
#define DRIVER_DESC "Edgeport USB Serial Driver"
@@ -173,8 +173,12 @@ static struct usb_device_id edgeport_2port_id_table [] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
-// The 4-port shows up as two 2-port devices
+ /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
{ }
};
@@ -209,6 +213,10 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
{ }
};
@@ -231,6 +239,7 @@ static int TIStayInBootMode = 0;
static int low_latency = EDGE_LOW_LATENCY;
static int closing_wait = EDGE_CLOSING_WAIT;
static int ignore_cpu_rev = 0;
+static int default_uart_mode = 0; /* RS232 */
static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length);
@@ -241,6 +250,10 @@ static int restart_read(struct edgeport_port *edge_port);
static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);
static void edge_send(struct usb_serial_port *port);
+/* sysfs attributes */
+static int edge_create_sysfs_attrs(struct usb_serial_port *port);
+static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
+
/* circular buffer */
static struct edge_buf *edge_buf_alloc(unsigned int size);
static void edge_buf_free(struct edge_buf *eb);
@@ -1706,13 +1719,14 @@ static void edge_interrupt_callback (struct urb *urb)
int length = urb->actual_length;
int port_number;
int function;
- int status;
+ int retval;
__u8 lsr;
__u8 msr;
+ int status = urb->status;
dbg("%s", __FUNCTION__);
- switch (urb->status) {
+ switch (status) {
case 0:
/* success */
break;
@@ -1720,10 +1734,12 @@ static void edge_interrupt_callback (struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, status);
return;
default:
- dev_err(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __FUNCTION__, urb->status);
+ dev_err(&urb->dev->dev, "%s - nonzero urb status received: "
+ "%d\n", __FUNCTION__, status);
goto exit;
}
@@ -1781,10 +1797,10 @@ static void edge_interrupt_callback (struct urb *urb)
}
exit:
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status)
+ retval = usb_submit_urb (urb, GFP_ATOMIC);
+ if (retval)
dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n",
- __FUNCTION__, status);
+ __FUNCTION__, retval);
}
static void edge_bulk_in_callback (struct urb *urb)
@@ -1792,12 +1808,13 @@ static void edge_bulk_in_callback (struct urb *urb)
struct edgeport_port *edge_port = (struct edgeport_port *)urb->context;
unsigned char *data = urb->transfer_buffer;
struct tty_struct *tty;
- int status = 0;
+ int retval = 0;
int port_number;
+ int status = urb->status;
dbg("%s", __FUNCTION__);
- switch (urb->status) {
+ switch (status) {
case 0:
/* success */
break;
@@ -1805,17 +1822,18 @@ static void edge_bulk_in_callback (struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, status);
return;
default:
dev_err (&urb->dev->dev,"%s - nonzero read bulk status received: %d\n",
- __FUNCTION__, urb->status );
+ __FUNCTION__, status);
}
- if (urb->status == -EPIPE)
+ if (status == -EPIPE)
goto exit;
- if (urb->status) {
+ if (status) {
dev_err(&urb->dev->dev,"%s - stopping read!\n", __FUNCTION__);
return;
}
@@ -1849,14 +1867,14 @@ exit:
spin_lock(&edge_port->ep_lock);
if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) {
urb->dev = edge_port->port->serial->dev;
- status = usb_submit_urb(urb, GFP_ATOMIC);
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
} else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) {
edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;
}
spin_unlock(&edge_port->ep_lock);
- if (status)
+ if (retval)
dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n",
- __FUNCTION__, status);
+ __FUNCTION__, retval);
}
static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length)
@@ -1883,12 +1901,13 @@ static void edge_bulk_out_callback (struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+ int status = urb->status;
dbg ("%s - port %d", __FUNCTION__, port->number);
edge_port->ep_write_urb_in_use = 0;
- switch (urb->status) {
+ switch (status) {
case 0:
/* success */
break;
@@ -1896,11 +1915,12 @@ static void edge_bulk_out_callback (struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, status);
return;
default:
- dev_err (&urb->dev->dev,"%s - nonzero write bulk status received: %d\n",
- __FUNCTION__, urb->status);
+ dev_err(&urb->dev->dev, "%s - nonzero write bulk status "
+ "received: %d\n", __FUNCTION__, status);
}
/* send any buffered data */
@@ -2351,7 +2371,7 @@ static int restart_read(struct edgeport_port *edge_port)
urb->complete = edge_bulk_in_callback;
urb->context = edge_port;
urb->dev = edge_port->port->serial->dev;
- status = usb_submit_urb(urb, GFP_KERNEL);
+ status = usb_submit_urb(urb, GFP_ATOMIC);
}
edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
edge_port->shadow_mcr |= MCR_RTS;
@@ -2524,14 +2544,6 @@ static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old
}
cflag = tty->termios->c_cflag;
- /* check that they really want us to change something */
- if (old_termios) {
- if (cflag == old_termios->c_cflag &&
- tty->termios->c_iflag == old_termios->c_iflag) {
- dbg ("%s - nothing to change", __FUNCTION__);
- return;
- }
- }
dbg("%s - clfag %08x iflag %08x", __FUNCTION__,
tty->termios->c_cflag, tty->termios->c_iflag);
@@ -2758,7 +2770,7 @@ static int edge_startup (struct usb_serial *serial)
edge_port->port = serial->port[i];
edge_port->edge_serial = edge_serial;
usb_set_serial_port_data(serial->port[i], edge_port);
- edge_port->bUartMode = 0; /* Default is RS232 */
+ edge_port->bUartMode = default_uart_mode;
}
return 0;
@@ -2782,19 +2794,60 @@ static void edge_shutdown (struct usb_serial *serial)
dbg ("%s", __FUNCTION__);
- for (i=0; i < serial->num_ports; ++i) {
+ for (i = 0; i < serial->num_ports; ++i) {
edge_port = usb_get_serial_port_data(serial->port[i]);
- if (edge_port) {
- edge_buf_free(edge_port->ep_out_buf);
- kfree(edge_port);
- }
+ edge_remove_sysfs_attrs(edge_port->port);
+ edge_buf_free(edge_port->ep_out_buf);
+ kfree(edge_port);
usb_set_serial_port_data(serial->port[i], NULL);
}
- kfree (usb_get_serial_data(serial));
+ kfree(usb_get_serial_data(serial));
usb_set_serial_data(serial, NULL);
}
+/* Sysfs Attributes */
+
+static ssize_t show_uart_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+
+ return sprintf(buf, "%d\n", edge_port->bUartMode);
+}
+
+static ssize_t store_uart_mode(struct device *dev,
+ struct device_attribute *attr, const char *valbuf, size_t count)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+ unsigned int v = simple_strtoul(valbuf, NULL, 0);
+
+ dbg("%s: setting uart_mode = %d", __FUNCTION__, v);
+
+ if (v < 256)
+ edge_port->bUartMode = v;
+ else
+ dev_err(dev, "%s - uart_mode %d is invalid\n", __FUNCTION__, v);
+
+ return count;
+}
+
+static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode);
+
+static int edge_create_sysfs_attrs(struct usb_serial_port *port)
+{
+ return device_create_file(&port->dev, &dev_attr_uart_mode);
+}
+
+static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
+{
+ device_remove_file(&port->dev, &dev_attr_uart_mode);
+ return 0;
+}
+
+
/* Circular Buffer */
/*
@@ -2991,6 +3044,7 @@ static struct usb_serial_driver edgeport_1port_device = {
.unthrottle = edge_unthrottle,
.attach = edge_startup,
.shutdown = edge_shutdown,
+ .port_probe = edge_create_sysfs_attrs,
.ioctl = edge_ioctl,
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
@@ -3022,6 +3076,7 @@ static struct usb_serial_driver edgeport_2port_device = {
.unthrottle = edge_unthrottle,
.attach = edge_startup,
.shutdown = edge_shutdown,
+ .port_probe = edge_create_sysfs_attrs,
.ioctl = edge_ioctl,
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
@@ -3085,3 +3140,6 @@ MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ignore_cpu_rev, "Ignore the cpu revision when connecting to a device");
+module_param(default_uart_mode, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ...");
+
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-20 12:34:44 +0000