82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*
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* Copyright (C) 2014 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#include <target.h>
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#include <platform/memmap.h>
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#include <platform/gpiodef.h>
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#include <target/gpiodef.h>
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#include <drivers/power.h>
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#include <stdlib.h>
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#include <lib/env.h>
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#include <lib/syscfg.h>
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#include <platform/dmin.h>
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enum {
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kRTKitArgBlockVersion1 = 'RTK1',
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kDaliFWArgVersion1 = 'DAL1',
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kDaliFWArgVersion2 = 'DAL2'
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};
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enum
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{
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kMode24hEnabledOffset = 0,
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kRotateScreenOffset = 1,
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kDaliDarkWakeOffset = 2, /* 0 = normal wake, 1 = scheduled thermal wake, don't paint screen */
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kPmuDebugOffset = 3
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};
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typedef struct dali_payload_t {
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uint32_t magic; /* = kDaliFWArgVersion2 */
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uint32_t reserved;
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uint8_t charFlags[8];
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int64_t utcOffset;
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DMin_t dmin;
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} dali_payload_t;
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typedef struct dali_args_t {
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uint32_t magic; /* = kRTKitArgBlockVersion1 */
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uint32_t size; /* size of pending payload */
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dali_payload_t payload;
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} dali_args_t;
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void*
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target_prepare_dali(void)
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{
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#if defined(PMU_LDO_OPAL) && WITH_HW_POWER
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// <rdar://problem/17768885> Interim Solution: Turn off LDO8 in Dali mode/iBoot
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// Opal uses a lot of power when held in reset. For sure we don't need it in Dali.
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power_enable_ldo(PMU_LDO_OPAL, false);
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#endif
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#ifdef GPIO_SPU_TO_OPAL_CS_L
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gpio_configure(GPIO_SPU_TO_OPAL_CS_L, GPIO_CFG_IN);
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#endif
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dali_args_t* args = (dali_args_t *)PANIC_BASE;
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bzero(args, sizeof(dali_args_t));
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args->magic = kRTKitArgBlockVersion1;
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args->size = sizeof(dali_payload_t);
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args->payload.magic = kDaliFWArgVersion2;
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args->payload.charFlags[kMode24hEnabledOffset] = (env_get_uint("dali-24h-mode", 0) == 1);
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args->payload.charFlags[kRotateScreenOffset] = (env_get_uint("display-rotation", 0) == 1);
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args->payload.charFlags[kPmuDebugOffset] = (env_get_uint("dali-pmu-debug", 0) == 1);
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syscfgCopyDataForTag('DMin', (uint8_t*)&(args->payload.dmin), sizeof(DMin_t));
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const char* utcOffsetStr = env_get("utc-offset");
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if (utcOffsetStr) {
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args->payload.utcOffset = atoi(utcOffsetStr);
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}
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return args;
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}
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