diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2005-11-17 17:48:18 (GMT) |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-17 19:29:55 (GMT) |
commit | bb833986674ce1fc1b237b3d81459511ad2df393 (patch) | |
tree | dca61cffabb03ab262be578f6e6d3b446383afbf /drivers/usb/serial/anydata.c | |
parent | 2d117403ae4006eeeb9037b82e9ecd8b3b043584 (diff) | |
download | linux-fsl-qoriq-bb833986674ce1fc1b237b3d81459511ad2df393.tar.xz |
[PATCH] USB: add the anydata usb-serial driver
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/usb/serial/anydata.c')
-rw-r--r-- | drivers/usb/serial/anydata.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/usb/serial/anydata.c b/drivers/usb/serial/anydata.c new file mode 100644 index 0000000..18022a7 --- /dev/null +++ b/drivers/usb/serial/anydata.c @@ -0,0 +1,123 @@ +/* + * AnyData CDMA Serial USB driver + * + * Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/tty.h> +#include <linux/module.h> +#include <linux/usb.h> +#include "usb-serial.h" + +static struct usb_device_id id_table [] = { + { USB_DEVICE(0x16d5, 0x6501) }, /* AirData CDMA device */ + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +/* if overridden by the user, then use their value for the size of the + * read and write urbs */ +static int buffer_size; +static int debug; + +static struct usb_driver anydata_driver = { + .owner = THIS_MODULE, + .name = "anydata", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, +}; + +static int anydata_open(struct usb_serial_port *port, struct file *filp) +{ + char *buffer; + int result = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (buffer_size) { + /* override the default buffer sizes */ + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!buffer) { + dev_err(&port->dev, "%s - out of memory.\n", + __FUNCTION__); + return -ENOMEM; + } + kfree (port->read_urb->transfer_buffer); + port->read_urb->transfer_buffer = buffer; + port->read_urb->transfer_buffer_length = buffer_size; + + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!buffer) { + dev_err(&port->dev, "%s - out of memory.\n", + __FUNCTION__); + return -ENOMEM; + } + kfree (port->write_urb->transfer_buffer); + port->write_urb->transfer_buffer = buffer; + port->write_urb->transfer_buffer_length = buffer_size; + port->bulk_out_size = buffer_size; + } + + /* Start reading from the device */ + 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, + usb_serial_generic_write_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", + __FUNCTION__, result); + + return result; +} + +static struct usb_serial_driver anydata_device = { + .driver = { + .owner = THIS_MODULE, + .name = "anydata", + }, + .id_table = id_table, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 1, + .open = anydata_open, +}; + +static int __init anydata_init(void) +{ + int retval; + + retval = usb_serial_register(&anydata_device); + if (retval) + return retval; + retval = usb_register(&anydata_driver); + if (retval) + usb_serial_deregister(&anydata_device); + return retval; +} + +static void __exit anydata_exit(void) +{ + usb_deregister(&anydata_driver); + usb_serial_deregister(&anydata_device); +} + +module_init(anydata_init); +module_exit(anydata_exit); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not"); +module_param(buffer_size, int, 0); +MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers"); |