* was written by Roman Weissgaerber <weissg@vienna.at>, Dag Brattli
* <dag@brattli.net>, and Jean Tourrilhes <jt@hpl.hp.com>
*
- * See Documentation/usb/usb-serial.txt for more information on using this driver
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver
+ *
+ * 2008_Jun_02 Felipe Balbi <me@felipebalbi.com>
+ * Introduced common header to be used also in USB Gadget Framework.
+ * Still needs some other style fixes.
*
* 2007_Jun_21 Alan Cox <alan@redhat.com>
* Minimal cleanups for some of the driver problens and tty layer abuse.
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/spinlock.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/usb/irda.h>
/*
* Version Information
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
#define DRIVER_DESC "USB IR Dongle driver"
-/* USB IrDA class spec information */
-#define USB_CLASS_IRDA 0x02
-#define USB_DT_IRDA 0x21
-#define IU_REQ_GET_CLASS_DESC 0x06
-#define SPEED_2400 0x01
-#define SPEED_9600 0x02
-#define SPEED_19200 0x03
-#define SPEED_38400 0x04
-#define SPEED_57600 0x05
-#define SPEED_115200 0x06
-#define SPEED_576000 0x07
-#define SPEED_1152000 0x08
-#define SPEED_4000000 0x09
-
-struct irda_class_desc {
- u8 bLength;
- u8 bDescriptorType;
- u16 bcdSpecRevision;
- u8 bmDataSize;
- u8 bmWindowSize;
- u8 bmMinTurnaroundTime;
- u16 wBaudRate;
- u8 bmAdditionalBOFs;
- u8 bIrdaRateSniff;
- u8 bMaxUnicastList;
-} __attribute__ ((packed));
-
static int debug;
/* if overridden by the user, then use their value for the size of the read and
* write urbs */
static int buffer_size;
+
/* if overridden by the user, then use the specified number of XBOFs */
static int xbof = -1;
-static int ir_startup (struct usb_serial *serial);
-static int ir_open (struct usb_serial_port *port, struct file *filep);
-static void ir_close (struct usb_serial_port *port, struct file *filep);
-static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count);
-static void ir_write_bulk_callback (struct urb *urb);
-static void ir_read_bulk_callback (struct urb *urb);
-static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);
+static int ir_startup(struct usb_serial *serial);
+static int ir_open(struct usb_serial_port *port, struct file *filep);
+static void ir_close(struct usb_serial_port *port, struct file *filep);
+static int ir_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count);
+static void ir_write_bulk_callback(struct urb *urb);
+static void ir_read_bulk_callback(struct urb *urb);
+static void ir_set_termios(struct usb_serial_port *port,
+ struct ktermios *old_termios);
/* Not that this lot means you can only have one per system */
-static u8 ir_baud = 0;
-static u8 ir_xbof = 0;
-static u8 ir_add_bof = 0;
+static u8 ir_baud;
+static u8 ir_xbof;
+static u8 ir_add_bof;
-static struct usb_device_id id_table [] = {
+static struct usb_device_id ir_id_table[] = {
{ USB_DEVICE(0x050f, 0x0180) }, /* KC Technology, KC-180 */
{ USB_DEVICE(0x08e9, 0x0100) }, /* XTNDAccess */
{ USB_DEVICE(0x09c4, 0x0011) }, /* ACTiSys ACT-IR2000U */
- { USB_INTERFACE_INFO (USB_CLASS_APP_SPEC, USB_CLASS_IRDA, 0) },
+ { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, USB_SUBCLASS_IRDA, 0) },
{ } /* Terminating entry */
};
-MODULE_DEVICE_TABLE (usb, id_table);
+MODULE_DEVICE_TABLE(usb, ir_id_table);
static struct usb_driver ir_driver = {
- .name = "ir-usb",
- .probe = usb_serial_probe,
- .disconnect = usb_serial_disconnect,
- .id_table = id_table,
- .no_dynamic_id = 1,
+ .name = "ir-usb",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = ir_id_table,
+ .no_dynamic_id = 1,
};
-
static struct usb_serial_driver ir_device = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "ir-usb",
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "ir-usb",
},
- .description = "IR Dongle",
- .usb_driver = &ir_driver,
- .id_table = id_table,
- .num_ports = 1,
- .set_termios = ir_set_termios,
- .attach = ir_startup,
- .open = ir_open,
- .close = ir_close,
- .write = ir_write,
- .write_bulk_callback = ir_write_bulk_callback,
- .read_bulk_callback = ir_read_bulk_callback,
+ .description = "IR Dongle",
+ .usb_driver = &ir_driver,
+ .id_table = ir_id_table,
+ .num_ports = 1,
+ .set_termios = ir_set_termios,
+ .attach = ir_startup,
+ .open = ir_open,
+ .close = ir_close,
+ .write = ir_write,
+ .write_bulk_callback = ir_write_bulk_callback,
+ .read_bulk_callback = ir_read_bulk_callback,
};
-static inline void irda_usb_dump_class_desc(struct irda_class_desc *desc)
+static inline void irda_usb_dump_class_desc(struct usb_irda_cs_descriptor *desc)
{
dbg("bLength=%x", desc->bLength);
dbg("bDescriptorType=%x", desc->bDescriptorType);
- dbg("bcdSpecRevision=%x", desc->bcdSpecRevision);
+ dbg("bcdSpecRevision=%x", __le16_to_cpu(desc->bcdSpecRevision));
dbg("bmDataSize=%x", desc->bmDataSize);
dbg("bmWindowSize=%x", desc->bmWindowSize);
dbg("bmMinTurnaroundTime=%d", desc->bmMinTurnaroundTime);
- dbg("wBaudRate=%x", desc->wBaudRate);
+ dbg("wBaudRate=%x", __le16_to_cpu(desc->wBaudRate));
dbg("bmAdditionalBOFs=%x", desc->bmAdditionalBOFs);
dbg("bIrdaRateSniff=%x", desc->bIrdaRateSniff);
dbg("bMaxUnicastList=%x", desc->bMaxUnicastList);
*
* Based on the same function in drivers/net/irda/irda-usb.c
*/
-static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum)
+static struct usb_irda_cs_descriptor *
+irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum)
{
- struct irda_class_desc *desc;
+ struct usb_irda_cs_descriptor *desc;
int ret;
-
- desc = kzalloc(sizeof (struct irda_class_desc), GFP_KERNEL);
- if (desc == NULL)
+
+ desc = kzalloc(sizeof(*desc), GFP_KERNEL);
+ if (!desc)
return NULL;
-
- ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0),
- IU_REQ_GET_CLASS_DESC,
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ USB_REQ_CS_IRDA_GET_CLASS_DESC,
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
0, ifnum, desc, sizeof(*desc), 1000);
-
+
dbg("%s - ret=%d", __func__, ret);
if (ret < sizeof(*desc)) {
dbg("%s - class descriptor read %s (%d)",
__func__,
- (ret<0) ? "failed" : "too short",
+ (ret < 0) ? "failed" : "too short",
ret);
goto error;
}
- if (desc->bDescriptorType != USB_DT_IRDA) {
+ if (desc->bDescriptorType != USB_DT_CS_IRDA) {
dbg("%s - bad class descriptor type", __func__);
goto error;
}
-
+
irda_usb_dump_class_desc(desc);
return desc;
+
error:
kfree(desc);
return NULL;
static u8 ir_xbof_change(u8 xbof)
{
u8 result;
+
/* reference irda-usb.c */
- switch(xbof) {
- case 48: result = 0x10; break;
- case 28:
- case 24: result = 0x20; break;
- default:
- case 12: result = 0x30; break;
- case 5:
- case 6: result = 0x40; break;
- case 3: result = 0x50; break;
- case 2: result = 0x60; break;
- case 1: result = 0x70; break;
- case 0: result = 0x80; break;
+ switch (xbof) {
+ case 48:
+ result = 0x10;
+ break;
+ case 28:
+ case 24:
+ result = 0x20;
+ break;
+ default:
+ case 12:
+ result = 0x30;
+ break;
+ case 5:
+ case 6:
+ result = 0x40;
+ break;
+ case 3:
+ result = 0x50;
+ break;
+ case 2:
+ result = 0x60;
+ break;
+ case 1:
+ result = 0x70;
+ break;
+ case 0:
+ result = 0x80;
+ break;
}
+
return(result);
}
-static int ir_startup (struct usb_serial *serial)
+static int ir_startup(struct usb_serial *serial)
{
- struct irda_class_desc *irda_desc;
+ struct usb_irda_cs_descriptor *irda_desc;
- irda_desc = irda_usb_find_class_desc (serial->dev, 0);
- if (irda_desc == NULL) {
- dev_err (&serial->dev->dev, "IRDA class descriptor not found, device not bound\n");
+ irda_desc = irda_usb_find_class_desc(serial->dev, 0);
+ if (!irda_desc) {
+ dev_err(&serial->dev->dev,
+ "IRDA class descriptor not found, device not bound\n");
return -ENODEV;
}
- dbg ("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s",
+ dbg("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s",
__func__,
- (irda_desc->wBaudRate & 0x0001) ? " 2400" : "",
- (irda_desc->wBaudRate & 0x0002) ? " 9600" : "",
- (irda_desc->wBaudRate & 0x0004) ? " 19200" : "",
- (irda_desc->wBaudRate & 0x0008) ? " 38400" : "",
- (irda_desc->wBaudRate & 0x0010) ? " 57600" : "",
- (irda_desc->wBaudRate & 0x0020) ? " 115200" : "",
- (irda_desc->wBaudRate & 0x0040) ? " 576000" : "",
- (irda_desc->wBaudRate & 0x0080) ? " 1152000" : "",
- (irda_desc->wBaudRate & 0x0100) ? " 4000000" : "");
-
- switch( irda_desc->bmAdditionalBOFs ) {
- case 0x01: ir_add_bof = 48; break;
- case 0x02: ir_add_bof = 24; break;
- case 0x04: ir_add_bof = 12; break;
- case 0x08: ir_add_bof = 6; break;
- case 0x10: ir_add_bof = 3; break;
- case 0x20: ir_add_bof = 2; break;
- case 0x40: ir_add_bof = 1; break;
- case 0x80: ir_add_bof = 0; break;
- default:;
+ (irda_desc->wBaudRate & USB_IRDA_BR_2400) ? " 2400" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_9600) ? " 9600" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_19200) ? " 19200" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_38400) ? " 38400" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_57600) ? " 57600" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_115200) ? " 115200" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_576000) ? " 576000" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_1152000) ? " 1152000" : "",
+ (irda_desc->wBaudRate & USB_IRDA_BR_4000000) ? " 4000000" : "");
+
+ switch (irda_desc->bmAdditionalBOFs) {
+ case USB_IRDA_AB_48:
+ ir_add_bof = 48;
+ break;
+ case USB_IRDA_AB_24:
+ ir_add_bof = 24;
+ break;
+ case USB_IRDA_AB_12:
+ ir_add_bof = 12;
+ break;
+ case USB_IRDA_AB_6:
+ ir_add_bof = 6;
+ break;
+ case USB_IRDA_AB_3:
+ ir_add_bof = 3;
+ break;
+ case USB_IRDA_AB_2:
+ ir_add_bof = 2;
+ break;
+ case USB_IRDA_AB_1:
+ ir_add_bof = 1;
+ break;
+ case USB_IRDA_AB_0:
+ ir_add_bof = 0;
+ break;
+ default:
+ break;
}
- kfree (irda_desc);
+ kfree(irda_desc);
- return 0;
+ return 0;
}
-static int ir_open (struct usb_serial_port *port, struct file *filp)
+static int ir_open(struct usb_serial_port *port, struct file *filp)
{
char *buffer;
int result = 0;
if (buffer_size) {
/* override the default buffer sizes */
- buffer = kmalloc (buffer_size, GFP_KERNEL);
+ buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!buffer) {
- dev_err (&port->dev, "%s - out of memory.\n", __func__);
+ dev_err(&port->dev, "%s - out of memory.\n", __func__);
return -ENOMEM;
}
- kfree (port->read_urb->transfer_buffer);
+ 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);
+ buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!buffer) {
- dev_err (&port->dev, "%s - out of memory.\n", __func__);
+ dev_err(&port->dev, "%s - out of memory.\n", __func__);
return -ENOMEM;
}
- kfree (port->write_urb->transfer_buffer);
+ 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 (
+ usb_fill_bulk_urb(
port->read_urb,
- port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
+ port->serial->dev,
+ usb_rcvbulkpipe(port->serial->dev,
+ port->bulk_in_endpointAddress),
port->read_urb->transfer_buffer,
port->read_urb->transfer_buffer_length,
ir_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);
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
+ __func__, result);
return result;
}
-static void ir_close (struct usb_serial_port *port, struct file * filp)
+static void ir_close(struct usb_serial_port *port, struct file *filp)
{
dbg("%s - port %d", __func__, port->number);
-
+
/* shutdown our bulk read */
usb_kill_urb(port->read_urb);
}
-static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count)
+static int ir_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count)
{
unsigned char *transfer_buffer;
int result;
dbg("%s - port = %d, count = %d", __func__, port->number, count);
if (!port->tty) {
- dev_err (&port->dev, "%s - no tty???\n", __func__);
+ dev_err(&port->dev, "%s - no tty???\n", __func__);
return 0;
}
/*
* The first byte of the packet we send to the device contains an
- * inband header which indicates an additional number of BOFs and
+ * inbound header which indicates an additional number of BOFs and
* a baud rate change.
*
* See section 5.4.2.2 of the USB IrDA spec.
*transfer_buffer = ir_xbof | ir_baud;
++transfer_buffer;
- memcpy (transfer_buffer, buf, transfer_size);
+ memcpy(transfer_buffer, buf, transfer_size);
- usb_fill_bulk_urb (
+ usb_fill_bulk_urb(
port->write_urb,
port->serial->dev,
usb_sndbulkpipe(port->serial->dev,
port->write_urb->transfer_flags = URB_ZERO_PACKET;
- result = usb_submit_urb (port->write_urb, GFP_ATOMIC);
+ result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
port->write_urb_busy = 0;
- dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result);
+ dev_err(&port->dev,
+ "%s - failed submitting write urb, error %d\n",
+ __func__, result);
} else
result = transfer_size;
return result;
}
-static void ir_write_bulk_callback (struct urb *urb)
+static void ir_write_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
int status = urb->status;
return;
}
- usb_serial_debug_data (
+ usb_serial_debug_data(
debug,
&port->dev,
__func__,
usb_serial_port_softint(port);
}
-static void ir_read_bulk_callback (struct urb *urb)
+static void ir_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct tty_struct *tty;
}
switch (status) {
- case 0: /* Successful */
-
- /*
- * The first byte of the packet we get from the device
- * contains a busy indicator and baud rate change.
- * See section 5.4.1.2 of the USB IrDA spec.
- */
- if ((*data & 0x0f) > 0)
- ir_baud = *data & 0x0f;
-
- usb_serial_debug_data (
- debug,
- &port->dev,
- __func__,
- urb->actual_length,
- data);
-
- tty = port->tty;
-
- if (tty_buffer_request_room(tty, urb->actual_length - 1)) {
- tty_insert_flip_string(tty, data+1, urb->actual_length - 1);
- tty_flip_buffer_push(tty);
- }
-
- /*
- * No break here.
- * We want to resubmit the urb so we can read
- * again.
- */
-
- case -EPROTO: /* taking inspiration from pl2303.c */
-
- /* 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,
- ir_read_bulk_callback,
- port);
-
- 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);
-
- break ;
-
- default:
- dbg("%s - nonzero read bulk status received: %d",
- __func__,
- status);
- break ;
+ case 0: /* Successful */
+
+ /*
+ * The first byte of the packet we get from the device
+ * contains a busy indicator and baud rate change.
+ * See section 5.4.1.2 of the USB IrDA spec.
+ */
+ if ((*data & 0x0f) > 0)
+ ir_baud = *data & 0x0f;
+
+ usb_serial_debug_data(
+ debug,
+ &port->dev,
+ __func__,
+ urb->actual_length,
+ data);
+
+ tty = port->tty;
+
+ if (tty_buffer_request_room(tty, urb->actual_length - 1)) {
+ tty_insert_flip_string(tty, data + 1,
+ urb->actual_length - 1);
+ tty_flip_buffer_push(tty);
+ }
+ /*
+ * No break here.
+ * We want to resubmit the urb so we can read
+ * again.
+ */
+
+ case -EPROTO: /* taking inspiration from pl2303.c */
+
+ /* 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,
+ ir_read_bulk_callback,
+ port);
+
+ 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);
+ break;
+
+ default:
+ dbg("%s - nonzero read bulk status received: %d",
+ __func__,
+ status);
+ break;
}
return;
}
-static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios)
+static void ir_set_termios(struct usb_serial_port *port,
+ struct ktermios *old_termios)
{
unsigned char *transfer_buffer;
int result;
*/
switch (baud) {
- case 2400: ir_baud = SPEED_2400; break;
- case 9600: ir_baud = SPEED_9600; break;
- case 19200: ir_baud = SPEED_19200; break;
- case 38400: ir_baud = SPEED_38400; break;
- case 57600: ir_baud = SPEED_57600; break;
- case 115200: ir_baud = SPEED_115200; break;
- case 576000: ir_baud = SPEED_576000; break;
- case 1152000: ir_baud = SPEED_1152000; break;
- case 4000000: ir_baud = SPEED_4000000; break;
- break;
- default:
- ir_baud = SPEED_9600;
- baud = 9600;
+ case 2400:
+ ir_baud = USB_IRDA_BR_2400;
+ break;
+ case 9600:
+ ir_baud = USB_IRDA_BR_9600;
+ break;
+ case 19200:
+ ir_baud = USB_IRDA_BR_19200;
+ break;
+ case 38400:
+ ir_baud = USB_IRDA_BR_38400;
+ break;
+ case 57600:
+ ir_baud = USB_IRDA_BR_57600;
+ break;
+ case 115200:
+ ir_baud = USB_IRDA_BR_115200;
+ break;
+ case 576000:
+ ir_baud = USB_IRDA_BR_576000;
+ break;
+ case 1152000:
+ ir_baud = USB_IRDA_BR_1152000;
+ break;
+ case 4000000:
+ ir_baud = USB_IRDA_BR_4000000;
+ break;
+ default:
+ ir_baud = USB_IRDA_BR_9600;
+ baud = 9600;
}
if (xbof == -1)
transfer_buffer = port->write_urb->transfer_buffer;
*transfer_buffer = ir_xbof | ir_baud;
- usb_fill_bulk_urb (
+ usb_fill_bulk_urb(
port->write_urb,
port->serial->dev,
- usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
+ usb_sndbulkpipe(port->serial->dev,
+ port->bulk_out_endpointAddress),
port->write_urb->transfer_buffer,
1,
ir_write_bulk_callback,
port->write_urb->transfer_flags = URB_ZERO_PACKET;
- result = usb_submit_urb (port->write_urb, GFP_KERNEL);
+ result = usb_submit_urb(port->write_urb, GFP_KERNEL);
if (result)
- dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result);
+ dev_err(&port->dev,
+ "%s - failed submitting write urb, error %d\n",
+ __func__, result);
/* Only speed changes are supported */
tty_termios_copy_hw(port->tty->termios, old_termios);
tty_encode_baud_rate(port->tty, baud, baud);
}
-
-static int __init ir_init (void)
+static int __init ir_init(void)
{
int retval;
+
retval = usb_serial_register(&ir_device);
if (retval)
goto failed_usb_serial_register;
+
retval = usb_register(&ir_driver);
- if (retval)
+ if (retval)
goto failed_usb_register;
+
info(DRIVER_DESC " " DRIVER_VERSION);
+
return 0;
+
failed_usb_register:
usb_serial_deregister(&ir_device);
+
failed_usb_serial_register:
return retval;
}
-
-static void __exit ir_exit (void)
+static void __exit ir_exit(void)
{
- usb_deregister (&ir_driver);
- usb_serial_deregister (&ir_device);
+ usb_deregister(&ir_driver);
+ usb_serial_deregister(&ir_device);
}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff