--- /dev/null
+/*
+ * USB Serial Converter stuff
+ *
+ * Copyright (C) 1999 - 2005
+ * Greg Kroah-Hartman (greg@kroah.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ */
+
+
+#ifndef __LINUX_USB_SERIAL_H
+#define __LINUX_USB_SERIAL_H
+
+#include <linux/kref.h>
+#include <linux/mutex.h>
+
+#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */
+#define SERIAL_TTY_MINORS 255 /* loads of devices :) */
+
+#define MAX_NUM_PORTS 8 /* The maximum number of ports one device can grab at once */
+
+/* parity check flag */
+#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
+
+/**
+ * usb_serial_port: structure for the specific ports of a device.
+ * @serial: pointer back to the struct usb_serial owner of this port.
+ * @tty: pointer to the corresponding tty for this port.
+ * @lock: spinlock to grab when updating portions of this structure.
+ * @mutex: mutex used to synchronize serial_open() and serial_close()
+ * access for this port.
+ * @number: the number of the port (the minor number).
+ * @interrupt_in_buffer: pointer to the interrupt in buffer for this port.
+ * @interrupt_in_urb: pointer to the interrupt in struct urb for this port.
+ * @interrupt_in_endpointAddress: endpoint address for the interrupt in pipe
+ * for this port.
+ * @interrupt_out_buffer: pointer to the interrupt out buffer for this port.
+ * @interrupt_out_size: the size of the interrupt_out_buffer, in bytes.
+ * @interrupt_out_urb: pointer to the interrupt out struct urb for this port.
+ * @interrupt_out_endpointAddress: endpoint address for the interrupt out pipe
+ * for this port.
+ * @bulk_in_buffer: pointer to the bulk in buffer for this port.
+ * @read_urb: pointer to the bulk in struct urb for this port.
+ * @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
+ * port.
+ * @bulk_out_buffer: pointer to the bulk out buffer for this port.
+ * @bulk_out_size: the size of the bulk_out_buffer, in bytes.
+ * @write_urb: pointer to the bulk out struct urb for this port.
+ * @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
+ * port.
+ * @write_wait: a wait_queue_head_t used by the port.
+ * @work: work queue entry for the line discipline waking up.
+ * @open_count: number of times this port has been opened.
+ *
+ * This structure is used by the usb-serial core and drivers for the specific
+ * ports of a device.
+ */
+struct usb_serial_port {
+ struct usb_serial * serial;
+ struct tty_struct * tty;
+ spinlock_t lock;
+ struct mutex mutex;
+ unsigned char number;
+
+ unsigned char * interrupt_in_buffer;
+ struct urb * interrupt_in_urb;
+ __u8 interrupt_in_endpointAddress;
+
+ unsigned char * interrupt_out_buffer;
+ int interrupt_out_size;
+ struct urb * interrupt_out_urb;
+ __u8 interrupt_out_endpointAddress;
+
+ unsigned char * bulk_in_buffer;
+ int bulk_in_size;
+ struct urb * read_urb;
+ __u8 bulk_in_endpointAddress;
+
+ unsigned char * bulk_out_buffer;
+ int bulk_out_size;
+ struct urb * write_urb;
+ int write_urb_busy;
+ __u8 bulk_out_endpointAddress;
+
+ wait_queue_head_t write_wait;
+ struct work_struct work;
+ int open_count;
+ struct device dev;
+};
+#define to_usb_serial_port(d) container_of(d, struct usb_serial_port, dev)
+
+/* get and set the port private data pointer helper functions */
+static inline void *usb_get_serial_port_data (struct usb_serial_port *port)
+{
+ return dev_get_drvdata(&port->dev);
+}
+
+static inline void usb_set_serial_port_data (struct usb_serial_port *port, void *data)
+{
+ dev_set_drvdata(&port->dev, data);
+}
+
+/**
+ * usb_serial - structure used by the usb-serial core for a device
+ * @dev: pointer to the struct usb_device for this device
+ * @type: pointer to the struct usb_serial_driver for this device
+ * @interface: pointer to the struct usb_interface for this device
+ * @minor: the starting minor number for this device
+ * @num_ports: the number of ports this device has
+ * @num_interrupt_in: number of interrupt in endpoints we have
+ * @num_interrupt_out: number of interrupt out endpoints we have
+ * @num_bulk_in: number of bulk in endpoints we have
+ * @num_bulk_out: number of bulk out endpoints we have
+ * @port: array of struct usb_serial_port structures for the different ports.
+ * @private: place to put any driver specific information that is needed. The
+ * usb-serial driver is required to manage this data, the usb-serial core
+ * will not touch this. Use usb_get_serial_data() and
+ * usb_set_serial_data() to access this.
+ */
+struct usb_serial {
+ struct usb_device * dev;
+ struct usb_serial_driver * type;
+ struct usb_interface * interface;
+ unsigned char minor;
+ unsigned char num_ports;
+ unsigned char num_port_pointers;
+ char num_interrupt_in;
+ char num_interrupt_out;
+ char num_bulk_in;
+ char num_bulk_out;
+ struct usb_serial_port * port[MAX_NUM_PORTS];
+ struct kref kref;
+ void * private;
+};
+#define to_usb_serial(d) container_of(d, struct usb_serial, kref)
+
+#define NUM_DONT_CARE (-1)
+
+/* get and set the serial private data pointer helper functions */
+static inline void *usb_get_serial_data (struct usb_serial *serial)
+{
+ return serial->private;
+}
+
+static inline void usb_set_serial_data (struct usb_serial *serial, void *data)
+{
+ serial->private = data;
+}
+
+/**
+ * usb_serial_driver - describes a usb serial driver
+ * @description: pointer to a string that describes this driver. This string used
+ * in the syslog messages when a device is inserted or removed.
+ * @id_table: pointer to a list of usb_device_id structures that define all
+ * of the devices this structure can support.
+ * @num_interrupt_in: the number of interrupt in endpoints this device will
+ * have.
+ * @num_interrupt_out: the number of interrupt out endpoints this device will
+ * have.
+ * @num_bulk_in: the number of bulk in endpoints this device will have.
+ * @num_bulk_out: the number of bulk out endpoints this device will have.
+ * @num_ports: the number of different ports this device will have.
+ * @calc_num_ports: pointer to a function to determine how many ports this
+ * device has dynamically. It will be called after the probe()
+ * callback is called, but before attach()
+ * @probe: pointer to the driver's probe function.
+ * This will be called when the device is inserted into the system,
+ * but before the device has been fully initialized by the usb_serial
+ * subsystem. Use this function to download any firmware to the device,
+ * or any other early initialization that might be needed.
+ * Return 0 to continue on with the initialization sequence. Anything
+ * else will abort it.
+ * @attach: pointer to the driver's attach function.
+ * This will be called when the struct usb_serial structure is fully set
+ * set up. Do any local initialization of the device, or any private
+ * memory structure allocation at this point in time.
+ * @shutdown: pointer to the driver's shutdown function. This will be
+ * called when the device is removed from the system.
+ *
+ * This structure is defines a USB Serial driver. It provides all of
+ * the information that the USB serial core code needs. If the function
+ * pointers are defined, then the USB serial core code will call them when
+ * the corresponding tty port functions are called. If they are not
+ * called, the generic serial function will be used instead.
+ *
+ * The driver.owner field should be set to the module owner of this driver.
+ * The driver.name field should be set to the name of this driver (remember
+ * it will show up in sysfs, so it needs to be short and to the point.
+ * Useing the module name is a good idea.)
+ */
+struct usb_serial_driver {
+ const char *description;
+ const struct usb_device_id *id_table;
+ char num_interrupt_in;
+ char num_interrupt_out;
+ char num_bulk_in;
+ char num_bulk_out;
+ char num_ports;
+
+ struct list_head driver_list;
+ struct device_driver driver;
+
+ int (*probe) (struct usb_serial *serial, const struct usb_device_id *id);
+ int (*attach) (struct usb_serial *serial);
+ int (*calc_num_ports) (struct usb_serial *serial);
+
+ void (*shutdown) (struct usb_serial *serial);
+
+ int (*port_probe) (struct usb_serial_port *port);
+ int (*port_remove) (struct usb_serial_port *port);
+
+ /* serial function calls */
+ int (*open) (struct usb_serial_port *port, struct file * filp);
+ void (*close) (struct usb_serial_port *port, struct file * filp);
+ int (*write) (struct usb_serial_port *port, const unsigned char *buf, int count);
+ int (*write_room) (struct usb_serial_port *port);
+ int (*ioctl) (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
+ void (*set_termios) (struct usb_serial_port *port, struct termios * old);
+ void (*break_ctl) (struct usb_serial_port *port, int break_state);
+ int (*chars_in_buffer) (struct usb_serial_port *port);
+ void (*throttle) (struct usb_serial_port *port);
+ void (*unthrottle) (struct usb_serial_port *port);
+ int (*tiocmget) (struct usb_serial_port *port, struct file *file);
+ int (*tiocmset) (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
+
+ void (*read_int_callback)(struct urb *urb, struct pt_regs *regs);
+ void (*write_int_callback)(struct urb *urb, struct pt_regs *regs);
+ void (*read_bulk_callback)(struct urb *urb, struct pt_regs *regs);
+ void (*write_bulk_callback)(struct urb *urb, struct pt_regs *regs);
+};
+#define to_usb_serial_driver(d) container_of(d, struct usb_serial_driver, driver)
+
+extern int usb_serial_register(struct usb_serial_driver *driver);
+extern void usb_serial_deregister(struct usb_serial_driver *driver);
+extern void usb_serial_port_softint(struct usb_serial_port *port);
+
+extern int usb_serial_probe(struct usb_interface *iface, const struct usb_device_id *id);
+extern void usb_serial_disconnect(struct usb_interface *iface);
+
+extern int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest);
+extern int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit);
+
+/* USB Serial console functions */
+#ifdef CONFIG_USB_SERIAL_CONSOLE
+extern void usb_serial_console_init (int debug, int minor);
+extern void usb_serial_console_exit (void);
+extern void usb_serial_console_disconnect(struct usb_serial *serial);
+#else
+static inline void usb_serial_console_init (int debug, int minor) { }
+static inline void usb_serial_console_exit (void) { }
+static inline void usb_serial_console_disconnect(struct usb_serial *serial) {}
+#endif
+
+/* Functions needed by other parts of the usbserial core */
+extern struct usb_serial *usb_serial_get_by_index (unsigned int minor);
+extern void usb_serial_put(struct usb_serial *serial);
+extern int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp);
+extern int usb_serial_generic_write (struct usb_serial_port *port, const unsigned char *buf, int count);
+extern void usb_serial_generic_close (struct usb_serial_port *port, struct file *filp);
+extern int usb_serial_generic_write_room (struct usb_serial_port *port);
+extern int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port);
+extern void usb_serial_generic_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
+extern void usb_serial_generic_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
+extern void usb_serial_generic_shutdown (struct usb_serial *serial);
+extern int usb_serial_generic_register (int debug);
+extern void usb_serial_generic_deregister (void);
+
+extern int usb_serial_bus_register (struct usb_serial_driver *device);
+extern void usb_serial_bus_deregister (struct usb_serial_driver *device);
+
+extern struct usb_serial_driver usb_serial_generic_device;
+extern struct bus_type usb_serial_bus_type;
+extern struct tty_driver *usb_serial_tty_driver;
+
+static inline void usb_serial_debug_data(int debug,
+ struct device *dev,
+ const char *function, int size,
+ const unsigned char *data)
+{
+ int i;
+
+ if (debug) {
+ dev_printk(KERN_DEBUG, dev, "%s - length = %d, data = ", function, size);
+ for (i = 0; i < size; ++i)
+ printk ("%.2x ", data[i]);
+ printk ("\n");
+ }
+}
+
+/* Use our own dbg macro */
+#undef dbg
+#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG "%s: " format "\n" , __FILE__ , ## arg); } while (0)
+
+
+
+#endif /* ifdef __LINUX_USB_SERIAL_H */
+
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