240 lines
6.0 KiB
C
240 lines
6.0 KiB
C
/*
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* Copyright (C) 2011-2015 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 <debug.h>
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#include <drivers/flash_nor.h>
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#include <drivers/iic.h>
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#include <drivers/power.h>
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#include <lib/devicetree.h>
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#include <lib/env.h>
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#include <lib/mib.h>
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#include <lib/syscfg.h>
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#include <platform.h>
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#include <platform/gpio.h>
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#include <platform/gpiodef.h>
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#include <platform/memmap.h>
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#include <sys.h>
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#include <sys/boot.h>
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#include <sys/menu.h>
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#include <sys/task.h>
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#include <target.h>
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#include <target/powerconfig.h>
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static u_int32_t e88_get_board_rev(void);
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MIB_CONSTANT(kMIBTargetOsPictureScale, kOIDTypeUInt32, 2);
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MIB_CONSTANT(kMIBTargetPictureRotate, kOIDTypeInt32, 0);
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void target_early_init(void)
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{
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}
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void target_late_init(void)
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{
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}
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void target_init(void)
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{
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#if WITH_HW_FLASH_NOR
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flash_nor_init(SPI_NOR0);
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#endif
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}
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void target_quiesce_hardware(void)
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{
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}
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void target_poweroff(void)
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{
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}
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int target_bootprep(enum boot_target target)
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{
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switch (target) {
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case BOOT_DARWIN:
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case BOOT_DARWIN_RESTORE:
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case BOOT_DIAGS:
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break;
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default:
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; // do nothing
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}
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return 0;
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}
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bool target_should_recover(void)
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{
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return platform_get_request_dfu2() && power_has_usb();
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}
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bool target_should_poweron(bool *cold_button_boot)
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{
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#if WITH_HW_POWER
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if (power_get_boot_flag() == kPowerBootFlagColdButton) *cold_button_boot = true;
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#else
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*cold_button_boot = false;
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#endif
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return !*cold_button_boot || platform_get_request_dfu1();
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}
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bool target_should_poweroff(bool at_boot)
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{
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return platform_get_request_dfu1() && (!at_boot || !power_has_usb());
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}
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#if APPLICATION_IBOOT
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void target_watchdog_tickle(void)
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{
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u_int32_t value = gpio_read(GPIO_WDOG_TICKLE);
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gpio_write(GPIO_WDOG_TICKLE, value ^ 1);
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}
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#endif // APPLICATION_IBOOT
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#if WITH_ENV
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void target_setup_default_environment(void)
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{
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env_set("boot-device", "nand0", 0);
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env_set("boot-partition", "0", 0);
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env_set("boot-path", "/System/Library/Caches/com.apple.kernelcaches/kernelcache", 0);
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}
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#endif
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static bool gpio_board_rev_valid;
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static u_int32_t gpio_board_rev;
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static u_int32_t e88_get_board_rev(void)
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{
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if (!gpio_board_rev_valid) {
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gpio_configure(GPIO_BOARD_REV0, GPIO_CFG_IN);
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gpio_configure(GPIO_BOARD_REV1, GPIO_CFG_IN);
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gpio_configure(GPIO_BOARD_REV2, GPIO_CFG_IN);
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gpio_configure(GPIO_BOARD_REV3, GPIO_CFG_IN);
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gpio_configure_pupdn(GPIO_BOARD_REV0, GPIO_PDN);
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gpio_configure_pupdn(GPIO_BOARD_REV1, GPIO_PDN);
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gpio_configure_pupdn(GPIO_BOARD_REV2, GPIO_PDN);
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gpio_configure_pupdn(GPIO_BOARD_REV3, GPIO_PDN);
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spin(100); // Wait 100us
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uint32_t brd_rev3_inverted = (gpio_read(GPIO_BOARD_REV3) ? 0UL : 1UL);
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gpio_board_rev =
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(brd_rev3_inverted << 3) |
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(gpio_read(GPIO_BOARD_REV2) << 2) |
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(gpio_read(GPIO_BOARD_REV1) << 1) |
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(gpio_read(GPIO_BOARD_REV0) << 0);
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gpio_configure(GPIO_BOARD_REV0, GPIO_CFG_DFLT);
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gpio_configure(GPIO_BOARD_REV1, GPIO_CFG_DFLT);
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gpio_configure(GPIO_BOARD_REV2, GPIO_CFG_DFLT);
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gpio_configure(GPIO_BOARD_REV3, GPIO_CFG_DFLT);
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gpio_board_rev_valid = true;
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}
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return gpio_board_rev;
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}
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#if WITH_DEVICETREE
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int target_update_device_tree(void)
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{
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DTNode *node;
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uint32_t propSize, propCnt;
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char *propName;
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void *propData;
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// Update the DWI node with the actual voltages
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if (FindNode(0, "arm-io/dwi", &node)) {
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propName = "voltages-buck2";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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propCnt = propSize / sizeof(u_int32_t);
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platform_get_cpu_voltages(propCnt, propData);
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platform_convert_voltages(2, propCnt, propData);
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}
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propName = "voltages-buck0";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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propCnt = propSize / sizeof(u_int32_t);
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platform_get_soc_voltages(propCnt, propData);
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platform_convert_voltages(0, propCnt, propData);
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}
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}
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// Update the gyro calibration data
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if (FindNode(0, "arm-io/i2c2/gyro", &node)) {
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propName = "low-temp-offset";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('LTGO', propData, propSize);
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}
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propName = "high-temp-offset";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('HTGO', propData, propSize);
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}
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propName = "gyro-sensitivity-calibration";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('GSCl', propData, propSize);
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}
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propName = "gyro-temp-table";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('GYTT', propData, propSize);
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}
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propName = "gyro-interrupt-calibration";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('GICl', propData, propSize);
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}
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}
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// Update accelerometer calibration data
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if (FindNode(0, "arm-io/i2c2/accelerometer", &node)) {
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propName = "low-temp-accel-offset";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('LTAO', propData, propSize);
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}
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propName = "accel-sensitivity-calibration";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('ASCl', propData, propSize);
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}
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propName = "accel-interrupt-calibration";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('AICl', propData, propSize);
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}
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}
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// Updte the speaker calibration data
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if (FindNode(0, "arm-io/i2c0/audio-speaker", &node)) {
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propName = "speaker-rdc";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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syscfgCopyDataForTag('SRdc', propData, propSize);
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}
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propName = "speaker-config";
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if (FindProperty(node, &propName, &propData, &propSize)) {
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uint8_t vpbr;
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if (syscfgCopyDataForTag('VPBR', &vpbr, sizeof(vpbr)) == 1) {
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((uint8_t *)propData)[12] = (((uint8_t *)propData)[12] & ~0x1f) | (vpbr & 0x1f);
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}
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uint8_t vbst;
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if (syscfgCopyDataForTag('VBST', &vbst, sizeof(vbst)) == 1) {
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((uint8_t *)propData)[16] = vbst;
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}
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}
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}
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return 0;
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}
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#endif
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