76 lines
2 KiB
C
76 lines
2 KiB
C
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/* IO interface mux allocator for ETRAX100LX.
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* Copyright 2004, Axis Communications AB
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* $Id: io_interface_mux.h,v 1.1 2004/12/13 12:21:53 starvik Exp $
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*/
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#ifndef _IO_INTERFACE_MUX_H
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#define _IO_INTERFACE_MUX_H
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/* C.f. ETRAX100LX Designer's Reference 20.9 */
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/* The order in enum must match the order of interfaces[] in
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* io_interface_mux.c */
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enum cris_io_interface {
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/* Begin Non-multiplexed interfaces */
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if_eth = 0,
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if_serial_0,
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/* End Non-multiplexed interfaces */
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if_serial_1,
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if_serial_2,
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if_serial_3,
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if_sync_serial_1,
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if_sync_serial_3,
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if_shared_ram,
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if_shared_ram_w,
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if_par_0,
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if_par_1,
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if_par_w,
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if_scsi8_0,
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if_scsi8_1,
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if_scsi_w,
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if_ata,
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if_csp,
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if_i2c,
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if_usb_1,
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if_usb_2,
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/* GPIO pins */
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if_gpio_grp_a,
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if_gpio_grp_b,
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if_gpio_grp_c,
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if_gpio_grp_d,
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if_gpio_grp_e,
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if_gpio_grp_f,
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if_max_interfaces,
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if_unclaimed
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};
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int cris_request_io_interface(enum cris_io_interface ioif, const char *device_id);
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void cris_free_io_interface(enum cris_io_interface ioif);
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/* port can be 'a', 'b' or 'g' */
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int cris_io_interface_allocate_pins(const enum cris_io_interface ioif,
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const char port,
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const unsigned start_bit,
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const unsigned stop_bit);
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/* port can be 'a', 'b' or 'g' */
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int cris_io_interface_free_pins(const enum cris_io_interface ioif,
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const char port,
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const unsigned start_bit,
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const unsigned stop_bit);
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int cris_io_interface_register_watcher(void (*notify)(const unsigned int gpio_in_available,
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const unsigned int gpio_out_available,
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const unsigned char pa_available,
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const unsigned char pb_available));
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void cris_io_interface_delete_watcher(void (*notify)(const unsigned int gpio_in_available,
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const unsigned int gpio_out_available,
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const unsigned char pa_available,
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const unsigned char pb_available));
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#endif /* _IO_INTERFACE_MUX_H */
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