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156 lines
8.9 KiB
C
156 lines
8.9 KiB
C
#ifndef __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
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#define __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
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/******************************************************************************
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Copyright (c) 2002, Infineon Technologies. All rights reserved.
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No Warranty
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Because the program is licensed free of charge, there is no warranty for
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the program, to the extent permitted by applicable law. Except when
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otherwise stated in writing the copyright holders and/or other parties
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provide the program "as is" without warranty of any kind, either
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expressed or implied, including, but not limited to, the implied
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warranties of merchantability and fitness for a particular purpose. The
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entire risk as to the quality and performance of the program is with
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you. should the program prove defective, you assume the cost of all
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necessary servicing, repair or correction.
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In no event unless required by applicable law or agreed to in writing
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will any copyright holder, or any other party who may modify and/or
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redistribute the program as permitted above, be liable to you for
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damages, including any general, special, incidental or consequential
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damages arising out of the use or inability to use the program
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(including but not limited to loss of data or data being rendered
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inaccurate or losses sustained by you or third parties or a failure of
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the program to operate with any other programs), even if such holder or
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other party has been advised of the possibility of such damages.
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******************************************************************************/
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/*
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* ####################################
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* Definition
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* ####################################
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*/
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/*
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* Available Timer/Counter Index
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*/
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#define TIMER(n, X) (n * 2 + (X ? 1 : 0))
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#define TIMER_ANY 0x00
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#define TIMER1A TIMER(1, 0)
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#define TIMER1B TIMER(1, 1)
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#define TIMER2A TIMER(2, 0)
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#define TIMER2B TIMER(2, 1)
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#define TIMER3A TIMER(3, 0)
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#define TIMER3B TIMER(3, 1)
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/*
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* Flag of Timer/Counter
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* These flags specify the way in which timer is configured.
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*/
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/* Bit size of timer/counter. */
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#define TIMER_FLAG_16BIT 0x0000
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#define TIMER_FLAG_32BIT 0x0001
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/* Switch between timer and counter. */
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#define TIMER_FLAG_TIMER 0x0000
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#define TIMER_FLAG_COUNTER 0x0002
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/* Stop or continue when overflowing/underflowing. */
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#define TIMER_FLAG_ONCE 0x0000
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#define TIMER_FLAG_CYCLIC 0x0004
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/* Count up or counter down. */
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#define TIMER_FLAG_UP 0x0000
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#define TIMER_FLAG_DOWN 0x0008
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/* Count on specific level or edge. */
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#define TIMER_FLAG_HIGH_LEVEL_SENSITIVE 0x0000
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#define TIMER_FLAG_LOW_LEVEL_SENSITIVE 0x0040
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#define TIMER_FLAG_RISE_EDGE 0x0010
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#define TIMER_FLAG_FALL_EDGE 0x0020
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#define TIMER_FLAG_ANY_EDGE 0x0030
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/* Signal is syncronous to module clock or not. */
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#define TIMER_FLAG_UNSYNC 0x0000
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#define TIMER_FLAG_SYNC 0x0080
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/* Different interrupt handle type. */
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#define TIMER_FLAG_NO_HANDLE 0x0000
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#if defined(__KERNEL__)
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#define TIMER_FLAG_CALLBACK_IN_IRQ 0x0100
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#endif // defined(__KERNEL__)
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#define TIMER_FLAG_SIGNAL 0x0300
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/* Internal clock source or external clock source */
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#define TIMER_FLAG_INT_SRC 0x0000
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#define TIMER_FLAG_EXT_SRC 0x1000
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/*
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* ioctl Command
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*/
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#define GPTU_REQUEST_TIMER 0x01 /* General method to setup timer/counter. */
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#define GPTU_FREE_TIMER 0x02 /* Free timer/counter. */
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#define GPTU_START_TIMER 0x03 /* Start or resume timer/counter. */
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#define GPTU_STOP_TIMER 0x04 /* Suspend timer/counter. */
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#define GPTU_GET_COUNT_VALUE 0x05 /* Get current count value. */
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#define GPTU_CALCULATE_DIVIDER 0x06 /* Calculate timer divider from given freq.*/
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#define GPTU_SET_TIMER 0x07 /* Simplified method to setup timer. */
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#define GPTU_SET_COUNTER 0x08 /* Simplified method to setup counter. */
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/*
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* Data Type Used to Call ioctl
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*/
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struct gptu_ioctl_param {
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unsigned int timer; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
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* GPTU_SET_COUNTER, this field is ID of expected *
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* timer/counter. If it's zero, a timer/counter would *
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* be dynamically allocated and ID would be stored in *
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* this field. *
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* In command GPTU_GET_COUNT_VALUE, this field is *
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* ignored. *
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* In other command, this field is ID of timer/counter *
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* allocated. */
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unsigned int flag; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
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* GPTU_SET_COUNTER, this field contains flags to *
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* specify how to configure timer/counter. *
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* In command GPTU_START_TIMER, zero indicate start *
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* and non-zero indicate resume timer/counter. *
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* In other command, this field is ignored. */
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unsigned long value; /* In command GPTU_REQUEST_TIMER, this field contains *
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* init/reload value. *
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* In command GPTU_SET_TIMER, this field contains *
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* frequency (0.001Hz) of timer. *
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* In command GPTU_GET_COUNT_VALUE, current count *
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* value would be stored in this field. *
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* In command GPTU_CALCULATE_DIVIDER, this field *
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* contains frequency wanted, and after calculation, *
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* divider would be stored in this field to overwrite *
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* the frequency. *
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* In other command, this field is ignored. */
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int pid; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
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* if signal is required, this field contains process *
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* ID to which signal would be sent. *
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* In other command, this field is ignored. */
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int sig; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
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* if signal is required, this field contains signal *
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* number which would be sent. *
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* In other command, this field is ignored. */
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};
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/*
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* ####################################
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* Data Type
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* ####################################
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*/
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typedef void (*timer_callback)(unsigned long arg);
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extern int ifxmips_request_timer(unsigned int, unsigned int, unsigned long, unsigned long, unsigned long);
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extern int ifxmips_free_timer(unsigned int);
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extern int ifxmips_start_timer(unsigned int, int);
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extern int ifxmips_stop_timer(unsigned int);
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extern int ifxmips_reset_counter_flags(u32 timer, u32 flags);
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extern int ifxmips_get_count_value(unsigned int, unsigned long *);
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extern u32 ifxmips_cal_divider(unsigned long);
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extern int ifxmips_set_timer(unsigned int, unsigned int, int, int, unsigned int, unsigned long, unsigned long);
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extern int ifxmips_set_counter(unsigned int timer, unsigned int flag,
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u32 reload, unsigned long arg1, unsigned long arg2);
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#endif /* __DANUBE_GPTU_DEV_H__2005_07_26__10_19__ */
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