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adbd0125fd
Check for the ES9018K2M dac in the bootloader for hw1/hw2 devices. Assume that all devices newer than hw2 have ES9018K2M DAC unconditionally. All devices will now report the correct hw revision in the debug menu under Device Data. Add devicedata.version field, current version 0. Rename device_data.lcd_version to device_data.hw_rev. hw2 devices with older bootloaders which ID as hw1 are special- cased to keep using hwvol on them. They should still upgrade though. Change-Id: If0fd5ce3bc6e85e511047721ec18e42fb89312e7
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2017 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __RB_DEVICEDATA__
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#define __RB_DEVICEDATA__
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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#include "system.h"
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#endif
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/* /!\ This file can be included in assembly files /!\ */
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/** The device data will be filled by the bootloader with information that might
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* be relevant for Rockbox. The bootloader will search for the structure using
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* the magic header within the first DEVICE_DATA_SEARCH_SIZE bytes of the binary.
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* Typically, this structure should be as close as possible to the entry point */
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/* Search size for the data structure after entry point */
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#define DEVICE_DATA_SEARCH_SIZE 1024
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#define DEVICE_DATA_MAGIC0 ('r' | 'b' << 8 | 'd' << 16 | 'e' << 24)
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#define DEVICE_DATA_MAGIC1 ('v' | 'i' << 8 | 'c' << 16 | 'e' << 24)
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#define DEIVCE_DATA_VERSION 0
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/* maximum size of payload */
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#define DEVICE_DATA_PAYLOAD_SIZE 4
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#ifndef __ASSEMBLER__
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/* This is the C structure */
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struct device_data_t
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{
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union
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{
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uint32_t crc; /* crc of payload data (CRC32 with 0xffffffff for initial value) */
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uint32_t magic[2]; /* DEVICE_DATA_MAGIC0/1 */
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};
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uint32_t length; /* length of the payload */
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/* add fields here */
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union
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{
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struct
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{
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#if defined(EROS_QN)
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uint8_t hw_rev;
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#endif
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uint8_t version;
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};
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uint8_t payload[DEVICE_DATA_PAYLOAD_SIZE];
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};
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} __attribute__((packed));
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void fill_devicedata(struct device_data_t *data);
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bool write_devicedata(unsigned char* buf, int len);
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#ifndef BOOTLOADER
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extern struct device_data_t device_data;
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void verify_device_data(void) INIT_ATTR;
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#endif
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#else /* __ASSEMBLER__ */
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/* This assembler macro implements an empty device data structure with just the magic
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* string and payload size */
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.macro put_device_data_here
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.global device_data
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device_data:
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.word DEVICE_DATA_MAGIC0
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.word DEVICE_DATA_MAGIC1
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.word DEVICE_DATA_PAYLOAD_SIZE
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.space BOOT_DATA_PAYLOAD_SIZE, 0xff /* payload, initialised with value 0xff */
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.endm
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#endif
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#endif /* __RB_DEVICEDATA__ */
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