19055c7d1SRyan Harkin /* 29055c7d1SRyan Harkin * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 39055c7d1SRyan Harkin * 49055c7d1SRyan Harkin * Redistribution and use in source and binary forms, with or without 59055c7d1SRyan Harkin * modification, are permitted provided that the following conditions are met: 69055c7d1SRyan Harkin * 79055c7d1SRyan Harkin * Redistributions of source code must retain the above copyright notice, this 89055c7d1SRyan Harkin * list of conditions and the following disclaimer. 99055c7d1SRyan Harkin * 109055c7d1SRyan Harkin * Redistributions in binary form must reproduce the above copyright notice, 119055c7d1SRyan Harkin * this list of conditions and the following disclaimer in the documentation 129055c7d1SRyan Harkin * and/or other materials provided with the distribution. 139055c7d1SRyan Harkin * 149055c7d1SRyan Harkin * Neither the name of ARM nor the names of its contributors may be used 159055c7d1SRyan Harkin * to endorse or promote products derived from this software without specific 169055c7d1SRyan Harkin * prior written permission. 179055c7d1SRyan Harkin * 189055c7d1SRyan Harkin * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 199055c7d1SRyan Harkin * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 209055c7d1SRyan Harkin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 219055c7d1SRyan Harkin * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 229055c7d1SRyan Harkin * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 239055c7d1SRyan Harkin * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 249055c7d1SRyan Harkin * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 259055c7d1SRyan Harkin * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 269055c7d1SRyan Harkin * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 279055c7d1SRyan Harkin * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 289055c7d1SRyan Harkin * POSSIBILITY OF SUCH DAMAGE. 299055c7d1SRyan Harkin */ 309055c7d1SRyan Harkin 319055c7d1SRyan Harkin #ifndef __DELAY_TIMER_H__ 329055c7d1SRyan Harkin #define __DELAY_TIMER_H__ 339055c7d1SRyan Harkin 349055c7d1SRyan Harkin #include <stdint.h> 359055c7d1SRyan Harkin 369055c7d1SRyan Harkin /******************************************************************** 379055c7d1SRyan Harkin * A simple timer driver providing synchronous delay functionality. 389055c7d1SRyan Harkin * The driver must be initialized with a structure that provides a 399055c7d1SRyan Harkin * function pointer to return the timer value and a clock 409055c7d1SRyan Harkin * multiplier/divider. The ratio of the multiplier and the divider is 41*540a5ba8SJuan Castillo * the clock period in microseconds. 429055c7d1SRyan Harkin ********************************************************************/ 439055c7d1SRyan Harkin 449055c7d1SRyan Harkin typedef struct timer_ops { 459055c7d1SRyan Harkin uint32_t (*get_timer_value)(void); 469055c7d1SRyan Harkin uint32_t clk_mult; 479055c7d1SRyan Harkin uint32_t clk_div; 489055c7d1SRyan Harkin } timer_ops_t; 499055c7d1SRyan Harkin 509055c7d1SRyan Harkin void mdelay(uint32_t msec); 519055c7d1SRyan Harkin void udelay(uint32_t usec); 529055c7d1SRyan Harkin void timer_init(const timer_ops_t *ops); 539055c7d1SRyan Harkin 549055c7d1SRyan Harkin 559055c7d1SRyan Harkin #endif /* __DELAY_TIMER_H__ */ 56