RTEMS 6.1-rc5
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grctm.h
1/* SPDX-License-Identifier: BSD-2-Clause */
2
3/* GRCTM - CCSDS Time Manager - register driver interface.
4 *
5 * COPYRIGHT (c) 2009.
6 * Cobham Gaisler AB
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef __GRCTM_H__
31#define __GRCTM_H__
32
33#define DAT0_IRQ 0x1
34#define DAT1_IRQ 0x2
35#define DAT2_IRQ 0x4
36#define PULSE0_IRQ 0x10
37#define PULSE1_IRQ 0x20
38#define PULSE2_IRQ 0x40
39#define PULSE3_IRQ 0x80
40#define PULSE4_IRQ 0x100
41#define PULSE5_IRQ 0x200
42#define PULSE6_IRQ 0x400
43#define PULSE7_IRQ 0x800
44
45struct grctm_regs {
46 volatile unsigned int grr;
47 volatile unsigned int gcr;
48 volatile unsigned int gsr;
49 volatile unsigned int unused[2];
50 volatile unsigned int pfr;
51 volatile unsigned int etcr;
52 volatile unsigned int etfr;
53 volatile unsigned int dcr0;
54 volatile unsigned int dfr0;
55 volatile unsigned int dcr1;
56 volatile unsigned int dfr1;
57 volatile unsigned int dcr2;
58 volatile unsigned int dfr2;
59 volatile unsigned int stcr;
60 volatile unsigned int stfr;
61 volatile unsigned int pdr[8];
62 volatile unsigned int pimsr;
63 volatile unsigned int pimr;
64 volatile unsigned int pisr;
65 volatile unsigned int pir;
66 volatile unsigned int imr;
67 volatile unsigned int picr;
68 volatile unsigned int unused1[2];
69 volatile unsigned int etir;
70 volatile unsigned int fsir;
71 volatile unsigned int serconf;
72 volatile unsigned int unused2;
73 volatile unsigned int twsc;
74 volatile unsigned int twadj;
75 volatile unsigned int twtx;
76 volatile unsigned int twrx;
77};
78
79struct grctm_stats {
80
81 /* IRQ Stats */
82 unsigned int nirqs;
83 unsigned int pulse;
84};
85
86/* Function ISR callback prototype */
87typedef void (*grctm_isr_t)(unsigned int pimr, void *data);
88
89/* Open a GRCTM device by minor number. */
90extern void *grctm_open(int minor);
91
92/* Close a previously opened GRCTM device */
93extern void grctm_close(void *spwcuc);
94
95/* Hardware Reset of GRCTM */
96extern int grctm_reset(void *grctm);
97
98/* Enable Interrupts at Interrupt controller */
99extern void grctm_int_enable(void *grctm);
100
101/* Disable Interrupts at Interrupt controller */
102extern void grctm_int_disable(void *grctm);
103
104/* Clear Statistics gathered by the driver */
105extern void grctm_clr_stats(void *grctm);
106
107/* Get Statistics gathered by the driver */
108extern void grctm_get_stats(void *grctm, struct grctm_stats *stats);
109
110/* Register an Interrupt handler and custom data, the function call is
111 * removed by setting func to NULL.
112 */
113extern void grctm_int_register(void *grctm, grctm_isr_t func, void *data);
114
115/* Enable external synchronisation (from spwcuc) */
116extern void grctm_enable_ext_sync(void *grctm);
117
118/* Disable external synchronisation (from spwcuc) */
119extern void grctm_disable_ext_sync(void *grctm);
120
121/* Enable TimeWire synchronisation */
122extern void grctm_enable_tw_sync(void *grctm);
123
124/* Disable TimeWire synchronisation */
125extern void grctm_disable_tw_sync(void *grctm);
126
127/* Disable frequency synthesizer from driving ET */
128extern void grctm_disable_fs(void *grctm);
129
130/* Enable frequency synthesizer to drive ET */
131extern void grctm_enable_fs(void *grctm);
132
133/* Return elapsed coarse time */
134extern unsigned int grctm_get_et_coarse(void *grctm);
135
136/* Return elapsed fine time */
137extern unsigned int grctm_get_et_fine(void *grctm);
138
139/* Return elapsed time (coarse and fine) */
140extern unsigned long long grctm_get_et(void *grctm);
141
142/* Return 1 if specified datation has been latched */
143extern int grctm_is_dat_latched(void *grctm, int dat);
144
145/* Set triggering edge of datation input */
146extern void grctm_set_dat_edge(void *grctm, int dat, int edge);
147
148/* Return latched datation coarse time */
149extern unsigned int grctm_get_dat_coarse(void *grctm, int dat);
150
151/* Return latched datation fine time */
152extern unsigned int grctm_get_dat_fine(void *grctm, int dat);
153
154/* Return latched datation ET */
155extern unsigned long long grctm_get_dat_et(void *grctm, int dat);
156
157/* Return current pulse configuration */
158extern unsigned int grctm_get_pulse_reg(void *grctm, int pulse);
159
160/* Set pulse register */
161extern void grctm_set_pulse_reg(void *grctm, int pulse, unsigned int val);
162
163/* Configure pulse: pp = period, pw = width, pl = level, en = enable */
164extern void grctm_cfg_pulse(void *grctm, int pulse, int pp, int pw, int pl, int en);
165
166/* Enable pulse output */
167extern void grctm_enable_pulse(void *grctm, int pulse);
168
169/* Disable pulse output */
170extern void grctm_disable_pulse(void *grctm, int pulse);
171
172/* Clear interrupts */
173extern void grctm_clear_irqs(void *grctm, int irqs);
174
175/* Enable interrupts */
176extern void grctm_enable_irqs(void *grctm, int irqs);
177
178/* Set Frequency synthesizer increment */
179void grctm_set_fs_incr(void *grctm, int incr);
180
181/* Set ET increment */
182void grctm_set_et_incr(void *grctm, int incr);
183
184/* Get register base address */
185struct grctm_regs *grctm_get_regs(void *grctm);
186
187/* Register the GRCTM driver to Driver Manager */
188extern void grctm_register(void);
189
190#endif
grctm_regs
Definition: grctm.h:45
grctm_stats
Definition: grctm.h:79
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