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/**
* @file
*
* @ingroup arm_beagle
*
* @brief Shared PWMSS module functions used by PWM, eQEP and eCAP (when added).
*/
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020, 2021 James Fitzsimons <james.fitzsimons@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LIBBSP_ARM_BEAGLE_PWMSS_H
#define LIBBSP_ARM_BEAGLE_PWMSS_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* The following definitions are bitmasks for the clk control registers for
* the PWMSS module clocks. All three modules have the same clock control
* hence the EPMSSx to signify these values are consistent across all
* EPWMSS instances. */
#define AM335X_CM_PER_EPWMSSx_CLKCTRL_MODULEMODE_ENABLE (0x2u)
#define AM335X_CM_PER_EPWMSSx_CLKCTRL_MODULEMODE (0x00000003u)
#define AM335X_CM_PER_EPWMSSx_CLKCTRL_IDLEST_FUNC (0x0u)
#define AM335X_CM_PER_EPWMSSx_CLKCTRL_IDLEST_SHIFT (0x00000010u)
#define AM335X_CM_PER_EPWMSSx_CLKCTRL_IDLEST (0x00030000u)
/**
* @brief The set of possible PWM subsystem module
*
* Enumerated type to define various instance of pwm module.
*/
typedef enum {
BBB_PWMSS0 = 0,
BBB_PWMSS1,
BBB_PWMSS2,
BBB_PWMSS_COUNT
} BBB_PWMSS;
rtems_status_code pwmss_module_clk_config(BBB_PWMSS pwmss_id);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_ARM_BEAGLE_PWMSS_H */
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