Commit 444a0182 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

[PATCH] USB: initial attempt at Treo 300 support for the visor driver

Thanks to Troy Benjegerdes and Jason Carnahan for first cuts at this...
parent 50ce485a
......@@ -175,6 +175,7 @@ static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsi
static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios);
static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs);
static int clie_3_5_startup (struct usb_serial *serial);
......@@ -232,9 +233,9 @@ static struct usb_driver visor_driver = {
/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
static struct usb_serial_device_type handspring_device = {
.owner = THIS_MODULE,
.name = "Handspring Visor / Palm 4.0 / Clié 4.x",
.name = "Handspring Visor / Treo / Palm 4.0 / Clié 4.x",
.id_table = id_table,
.num_interrupt_in = 0,
.num_interrupt_in = NUM_DONT_CARE,
.num_bulk_in = 2,
.num_bulk_out = 2,
.num_ports = 2,
......@@ -252,6 +253,7 @@ static struct usb_serial_device_type handspring_device = {
.chars_in_buffer = visor_chars_in_buffer,
.write_bulk_callback = visor_write_bulk_callback,
.read_bulk_callback = visor_read_bulk_callback,
.read_int_callback = visor_read_int_callback,
};
/* device info for the Sony Clie OS version 3.5 */
......@@ -320,9 +322,20 @@ static int visor_open (struct usb_serial_port *port, struct file *filp)
port->read_urb->transfer_buffer_length,
visor_read_bulk_callback, port);
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result)
err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
if (result) {
err("%s - failed submitting read urb, error %d",
__FUNCTION__, result);
goto exit;
}
if (port->interrupt_in_urb) {
dbg("%s - adding interrupt input for treo", __FUNCTION__);
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result)
err("%s - failed submitting interrupt urb, error %d",
__FUNCTION__, result);
}
exit:
return result;
}
......@@ -358,6 +371,9 @@ static void visor_close (struct usb_serial_port *port, struct file * filp)
}
/* shutdown our bulk read */
usb_unlink_urb (port->read_urb);
if (port->interrupt_in_urb)
usb_unlink_urb (port->interrupt_in_urb);
}
/* Uncomment the following line if you want to see some statistics in your syslog */
/* info ("Bytes In = %d Bytes Out = %d", bytes_in, bytes_out); */
......@@ -523,6 +539,43 @@ static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
return;
}
static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
{
int result;
switch (urb->status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d",
__FUNCTION__, urb->status);
return;
default:
dbg("%s - nonzero urb status received: %d",
__FUNCTION__, urb->status);
goto exit;
}
/*
* This information is still unknown what it can be used for.
* If anyone has an idea, please let the author know...
*
* Rumor has it this endpoint is used to notify when data
* is ready to be read from the bulk ones.
*/
usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length,
urb->transfer_buffer);
exit:
result = usb_submit_urb (urb, GFP_ATOMIC);
if (result)
err("%s - Error %d submitting interrupt urb",
__FUNCTION__, result);
}
static void visor_throttle (struct usb_serial_port *port)
{
......
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