forked from Imagelibrary/rtems
33f6e34b2d
This patch changes the license to BSD-2 for all source files where the copyright is held by Aeroflex Gaisler, Cobham Gaisler, or Gaisler Research. Some files also includes copyright right statements from OAR and/or embedded Brains in addition to Gaisler. Updates #3053.
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* Header file for GRASCS RTEMS driver
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*
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* COPYRIGHT (c) 2008.
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* Cobham Gaisler AB.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __GRASCS_H__
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#define __GRASCS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Minimum and maximum system frequency */
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#define GRASCS_MIN_SFREQ 10000
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#define GRASCS_MAX_SFREQ 255000
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/* Default, minimum and maximum ETR pulse frequency */
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#define GRASCS_DEFAULT_ETRFREQ 10
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#define GRASCS_MIN_ETRFREQ 1
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#define GRASCS_MAX_ETRFREQ 100
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/* Maximum number of external time markers */
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#define GRASCS_MAX_TMS 6
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/* Error codes */
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#define GRASCS_ERROR_STARTSTOP 1 /* Serial/synch interface is running/stopped */
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#define GRASCS_ERROR_TRANSACTIVE 2 /* Busy with transaction */
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#define GRASCS_ERROR_CAPFAULT 3 /* Core capabilities prohibit request */
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/* Command register */
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#define GRASCS_CMD_RESET (1 << 0)
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#define GRASCS_CMD_STARTSTOP (1 << 1)
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#define GRASCS_CMD_ESTARTSTOP (1 << 2)
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#define GRASCS_CMD_SENDTM (1 << 3)
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#define GRASCS_CMD_ETRCTRL (7 << 4)
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#define GRASCS_CMD_ETRCTRL_BITS 4
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#define GRASCS_CMD_SLAVESEL (15 << 8)
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#define GRASCS_CMD_SLAVESEL_BITS 8
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#define GRASCS_CMD_TCDONE (1 << 12)
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#define GRASCS_CMD_TMDONE (1 << 13)
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#define GRASCS_CMD_US1 (255 << 16)
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#define GRASCS_CMD_US1_BITS 16
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#define GRASCS_CMD_US1C (1 << 24)
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/* Clock scale register */
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#define GRASCS_CLK_ETRFREQ_BITS 12
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/* Status register */
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#define GRASCS_STS_RUNNING (1 << 0)
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#define GRASCS_STS_ERUNNING (1 << 1)
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#define GRASCS_STS_TCDONE (1 << 4)
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#define GRASCS_STS_TMDONE (1 << 5)
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#define GRASCS_STS_DBITS_BITS 8
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#define GRASCS_STS_NSLAVES_BITS 13
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#define GRASCS_STS_USCONF_BITS 18
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#define GRASCS_STS_TMCONF_BITS 19
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extern int ASCS_init(void);
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extern int ASCS_input_select(int slave);
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extern int ASCS_etr_select(int etr, int freq);
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extern void ASCS_start(void);
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extern void ASCS_stop(void);
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extern int ASCS_iface_status(void);
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extern int ASCS_TC_send(int *word);
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extern int ASCS_TC_send_block(int *block, int ntrans);
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extern void ASCS_TC_sync_start(void);
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extern void ASCS_TC_sync_stop(void);
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extern int ASCS_TM_recv(int *word);
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extern int ASCS_TM_recv_block(int *block, int ntrans);
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#ifdef __cplusplus
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}
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#endif
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#endif
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