include/asm-cris/arch-v10/io_interface_mux.h

   1 /* IO interface mux allocator for ETRAX100LX.
   2  * Copyright 2004, Axis Communications AB
   3  * $Id: io_interface_mux.h,v 1.1 2004/12/13 12:21:53 starvik Exp $
   4  */
   5
   6
   7 #ifndef _IO_INTERFACE_MUX_H
   8 #define _IO_INTERFACE_MUX_H
   9
  10
  11 /* C.f. ETRAX100LX Designer's Reference 20.9 */
  12
  13 /* The order in enum must match the order of interfaces[] in
  14  * io_interface_mux.c */
  15 enum cris_io_interface {
  16         /* Begin Non-multiplexed interfaces */
  17         if_eth = 0,
  18         if_serial_0,
  19         /* End Non-multiplexed interfaces */
  20         if_serial_1,
  21         if_serial_2,
  22         if_serial_3,
  23         if_sync_serial_1,
  24         if_sync_serial_3,
  25         if_shared_ram,
  26         if_shared_ram_w,
  27         if_par_0,
  28         if_par_1,
  29         if_par_w,
  30         if_scsi8_0,
  31         if_scsi8_1,
  32         if_scsi_w,
  33         if_ata,
  34         if_csp,
  35         if_i2c,
  36         if_usb_1,
  37         if_usb_2,
  38         /* GPIO pins */
  39         if_gpio_grp_a,
  40         if_gpio_grp_b,
  41         if_gpio_grp_c,
  42         if_gpio_grp_d,
  43         if_gpio_grp_e,
  44         if_gpio_grp_f,
  45         if_max_interfaces,
  46         if_unclaimed
  47 };
  48
  49 int cris_request_io_interface(enum cris_io_interface ioif, const char *device_id);
  50
  51 void cris_free_io_interface(enum cris_io_interface ioif);
  52
  53 /* port can be 'a', 'b' or 'g' */
  54 int cris_io_interface_allocate_pins(const enum cris_io_interface ioif,
  55                                     const char port,
  56                                     const unsigned start_bit,
  57                                     const unsigned stop_bit);
  58
  59 /* port can be 'a', 'b' or 'g' */
  60 int cris_io_interface_free_pins(const enum cris_io_interface ioif,
  61                                 const char port,
  62                                 const unsigned start_bit,
  63                                 const unsigned stop_bit);
  64
  65 int cris_io_interface_register_watcher(void (*notify)(const unsigned int gpio_in_available,
  66                                                       const unsigned int gpio_out_available,
  67                                                       const unsigned char pa_available,
  68                                                       const unsigned char pb_available));
  69
  70 void cris_io_interface_delete_watcher(void (*notify)(const unsigned int gpio_in_available,
  71                                                      const unsigned int gpio_out_available,
  72                                                      const unsigned char pa_available,
  73                                                      const unsigned char pb_available));
  74
  75 #endif /* _IO_INTERFACE_MUX_H */