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/*
* Copyright (c) 2015 - 2017, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* * 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.
* * Neither the name of The Linux Foundation nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT 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 __HW_INFO_H__
#define __HW_INFO_H__
#include <core/sdm_types.h>
#include <core/core_interface.h>
#include <private/hw_info_types.h>
#include <linux/msm_mdp.h>
#include <bitset>
#include "hw_info_interface.h"
#ifndef MDP_IMGTYPE_END
#define MDP_IMGTYPE_LIMIT1 0x100
#endif
namespace sdm {
class HWInfo: public HWInfoInterface {
public:
virtual ~HWInfo() { delete hw_resource_; }
virtual DisplayError GetHWResourceInfo(HWResourceInfo *hw_resource);
virtual DisplayError GetFirstDisplayInterfaceType(HWDisplayInterfaceInfo *hw_disp_info);
private:
virtual DisplayError GetHWRotatorInfo(HWResourceInfo *hw_resource);
virtual DisplayError GetMDSSRotatorInfo(HWResourceInfo *hw_resource);
virtual DisplayError GetV4L2RotatorInfo(HWResourceInfo *hw_resource);
// TODO(user): Read Mdss version from the driver
static const int kHWMdssVersion5 = 500; // MDSS_V5
static const int kMaxStringLength = 1024;
// MDP Capabilities are replicated across all frame buffer devices.
// However, we rely on reading the capabalities from fbO since this
// is guaranteed to be available.
static const int kHWCapabilitiesNode = 0;
static const std::bitset<8> kDefaultFormatSupport[kHWSubBlockMax][
BITS_TO_BYTES(MDP_IMGTYPE_LIMIT1)];
static constexpr const char *kRotatorCapsPath = "/sys/devices/virtual/rotator/mdss_rotator/caps";
static constexpr const char *kBWModeBitmap
= "/sys/devices/virtual/graphics/fb0/mdp/bw_mode_bitmap";
static int ParseString(const char *input, char *tokens[], const uint32_t max_token,
const char *delim, uint32_t *count);
DisplayError GetDynamicBWLimits(HWResourceInfo *hw_resource);
LayerBufferFormat GetSDMFormat(int mdp_format);
void InitSupportedFormatMap(HWResourceInfo *hw_resource);
void ParseFormats(char *tokens[], uint32_t token_count, HWSubBlockType sub_block_type,
HWResourceInfo *hw_resource);
void PopulateSupportedFormatMap(const std::bitset<8> *format_supported, uint32_t format_count,
HWSubBlockType sub_blk_type, HWResourceInfo *hw_resource);
HWResourceInfo *hw_resource_ = NULL;
};
} // namespace sdm
#endif // __HW_INFO_H__
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