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e94a0c1a18
driver. This used to be handled by cpufreq_drv_settings() but it's useful to get the type/flags separately from getting the settings. (For example, you don't have to pass an array of cf_setting just to find the driver type.) Use this new method in our in-tree drivers to detect reliably if acpi_perf is present and owns the hardware. This simplifies logic in drivers as well as fixing a bug introduced in my last commit where too many drivers attached.
101 lines
2.3 KiB
Objective-C
101 lines
2.3 KiB
Objective-C
#
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# Copyright (c) 2004 Nate Lawson
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# All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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#include <sys/bus.h>
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INTERFACE cpufreq;
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HEADER {
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struct cf_level;
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struct cf_setting;
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};
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# cpufreq interface methods
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#
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# Set the current CPU frequency level.
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#
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METHOD int set {
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device_t dev;
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const struct cf_level *level;
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int priority;
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};
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#
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# Get the current active level.
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#
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METHOD int get {
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device_t dev;
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struct cf_level *level;
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};
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#
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# Get the current possible levels, based on all drivers.
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#
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METHOD int levels {
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device_t dev;
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struct cf_level *levels;
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int *count;
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};
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# Individual frequency driver methods
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#
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# Set an individual driver's setting.
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#
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METHOD int drv_set {
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device_t dev;
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const struct cf_setting *set;
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};
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#
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# Get an individual driver's setting.
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#
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METHOD int drv_get {
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device_t dev;
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struct cf_setting *set;
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};
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#
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# Get the settings supported by a driver.
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#
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METHOD int drv_settings {
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device_t dev;
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struct cf_setting *sets;
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int *count;
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};
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#
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# Get an individual driver's type.
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#
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METHOD int drv_type {
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device_t dev;
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int *type;
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};
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