^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright (c) 2009-2011, Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Permission is hereby granted, free of charge, to any person obtaining a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * copy of this software and associated documentation files (the "Software"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * to deal in the Software without restriction, including without limitation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * the rights to use, copy, modify, merge, publish, distribute, sublicense,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * and/or sell copies of the Software, and to permit persons to whom the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Software is furnished to do so, subject to the following conditions:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * The above copyright notice and this permission notice (including the next
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * paragraph) shall be included in all copies or substantial portions of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Software.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Benjamin Defnet <benjamin.r.defnet@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Rajesh Poornachandran <rajesh.poornachandran@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Massively reworked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Alan Cox <alan@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #ifndef _PSB_POWERMGMT_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define _PSB_POWERMGMT_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct drm_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) void gma_power_init(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void gma_power_uninit(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * The kernel bus power management will call these functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int gma_power_suspend(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int gma_power_resume(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int gma_power_thaw(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int gma_power_freeze(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int gma_power_restore(struct device *_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * These are the functions the driver should use to wrap all hw access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * (i.e. register reads and writes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) bool gma_power_begin(struct drm_device *dev, bool force);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) void gma_power_end(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * Use this function to do an instantaneous check for if the hw is on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * Only use this in cases where you know the mutex is already held such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * as in irq install/uninstall and you need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * prevent a deadlock situation. Otherwise use gma_power_begin().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) bool gma_power_is_on(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * GFX-Runtime PM callbacks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int psb_runtime_suspend(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int psb_runtime_resume(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int psb_runtime_idle(struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #endif /*_PSB_POWERMGMT_H_*/