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drivers
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usb
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serial
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usb-wwan.h

usb-wwan.h 2.0 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /*
    3. 

  3.  * Definitions for USB serial mobile broadband cards
    4. 

  4.  */
    5. 

  5. 

  6. #ifndef __LINUX_USB_USB_WWAN
    7. 

  7. #define __LINUX_USB_USB_WWAN
    8. 

  8. 

  9. extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
    10. 

  10. extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
    11. 

  11. extern void usb_wwan_close(struct usb_serial_port *port);
    12. 

  12. extern int usb_wwan_port_probe(struct usb_serial_port *port);
    13. 

  13. extern int usb_wwan_port_remove(struct usb_serial_port *port);
    14. 

  14. extern int usb_wwan_write_room(struct tty_struct *tty);
    15. 

  15. extern int usb_wwan_tiocmget(struct tty_struct *tty);
    16. 

  16. extern int usb_wwan_tiocmset(struct tty_struct *tty,
    17. 

  17. 			     unsigned int set, unsigned int clear);
    18. 

  18. extern int usb_wwan_ioctl(struct tty_struct *tty,
    19. 

  19. 			  unsigned int cmd, unsigned long arg);
    20. 

  20. extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
    21. 

  21. 			  const unsigned char *buf, int count);
    22. 

  22. extern int usb_wwan_chars_in_buffer(struct tty_struct *tty);
    23. 

  23. #ifdef CONFIG_PM
    24. 

  24. extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
    25. 

  25. extern int usb_wwan_resume(struct usb_serial *serial);
    26. 

  26. #endif
    27. 

  27. 

  28. /* per port private data */
    29. 

  29. 

  30. #define N_IN_URB 4
    31. 

  31. #define N_OUT_URB 4
    32. 

  32. #define IN_BUFLEN 4096
    33. 

  33. #define OUT_BUFLEN 4096
    34. 

  34. 

  35. struct usb_wwan_intf_private {
    36. 

  36. 	spinlock_t susp_lock;
    37. 

  37. 	unsigned int suspended:1;
    38. 

  38. 	unsigned int use_send_setup:1;
    39. 

  39. 	unsigned int use_zlp:1;
    40. 

  40. 	int in_flight;
    41. 

  41. 	unsigned int open_ports;
    42. 

  42. 	void *private;
    43. 

  43. };
    44. 

  44. 

  45. struct usb_wwan_port_private {
    46. 

  46. 	/* Input endpoints and buffer for this port */
    47. 

  47. 	struct urb *in_urbs[N_IN_URB];
    48. 

  48. 	u8 *in_buffer[N_IN_URB];
    49. 

  49. 	/* Output endpoints and buffer for this port */
    50. 

  50. 	struct urb *out_urbs[N_OUT_URB];
    51. 

  51. 	u8 *out_buffer[N_OUT_URB];
    52. 

  52. 	unsigned long out_busy;	/* Bit vector of URBs in use */
    53. 

  53. 	struct usb_anchor delayed;
    54. 

  54. 

  55. 	/* Settings for the port */
    56. 

  56. 	int rts_state;		/* Handshaking pins (outputs) */
    57. 

  57. 	int dtr_state;
    58. 

  58. 	int cts_state;		/* Handshaking pins (inputs) */
    59. 

  59. 	int dsr_state;
    60. 

  60. 	int dcd_state;
    61. 

  61. 	int ri_state;
    62. 

  62. 

  63. 	unsigned long tx_start_time[N_OUT_URB];
    64. 

  64. };
    65. 

  65. 

  66. #endif /* __LINUX_USB_USB_WWAN */
    67. 

  67.