serial_8250.h 1.7 KB

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  1. /*
  2. * linux/include/linux/serial_8250.h
  3. *
  4. * Copyright (C) 2004 Russell King
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. */
  11. #ifndef _LINUX_SERIAL_8250_H
  12. #define _LINUX_SERIAL_8250_H
  13. #include <linux/serial_core.h>
  14. #include <linux/platform_device.h>
  15. /*
  16. * This is the platform device platform_data structure
  17. */
  18. struct plat_serial8250_port {
  19. unsigned long iobase; /* io base address */
  20. void __iomem *membase; /* ioremap cookie or NULL */
  21. unsigned long mapbase; /* resource base */
  22. unsigned int irq; /* interrupt number */
  23. unsigned int uartclk; /* UART clock rate */
  24. unsigned char regshift; /* register shift */
  25. unsigned char iotype; /* UPIO_* */
  26. unsigned char hub6;
  27. upf_t flags; /* UPF_* flags */
  28. };
  29. /*
  30. * Allocate 8250 platform device IDs. Nothing is implied by
  31. * the numbering here, except for the legacy entry being -1.
  32. */
  33. enum {
  34. PLAT8250_DEV_LEGACY = -1,
  35. PLAT8250_DEV_PLATFORM,
  36. PLAT8250_DEV_PLATFORM1,
  37. PLAT8250_DEV_PLATFORM2,
  38. PLAT8250_DEV_FOURPORT,
  39. PLAT8250_DEV_ACCENT,
  40. PLAT8250_DEV_BOCA,
  41. PLAT8250_DEV_EXAR_ST16C554,
  42. PLAT8250_DEV_HUB6,
  43. PLAT8250_DEV_MCA,
  44. PLAT8250_DEV_AU1X00,
  45. };
  46. /*
  47. * This should be used by drivers which want to register
  48. * their own 8250 ports without registering their own
  49. * platform device. Using these will make your driver
  50. * dependent on the 8250 driver.
  51. */
  52. struct uart_port;
  53. int serial8250_register_port(struct uart_port *);
  54. void serial8250_unregister_port(int line);
  55. void serial8250_suspend_port(int line);
  56. void serial8250_resume_port(int line);
  57. #endif