mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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1e08d488bd
This moves the mock function from common layer down to physical layer to complete the test of common layer. Also disable flash test for hardware tests, as this is only testing common layer. BUG=chrome-os-partner:19236 TEST=util/make_all.sh BRANCH=None Change-Id: Idd1c2c44591952894486f84d428872cfbf2cfdad Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/170297 Reviewed-by: Randall Spangler <rspangler@chromium.org>
148 lines
3.0 KiB
C
148 lines
3.0 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Flash module for emulator */
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#include <stdio.h>
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#include "common.h"
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#include "flash.h"
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#include "persistence.h"
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#include "util.h"
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char __host_flash[CONFIG_FLASH_PHYSICAL_SIZE];
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uint8_t __host_flash_protect[PHYSICAL_BANKS];
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/* Override this function to make flash erase/write operation fail */
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test_mockable int flash_pre_op(void)
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{
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return EC_SUCCESS;
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}
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static int flash_check_protect(int offset, int size)
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{
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int first_bank = offset / CONFIG_FLASH_BANK_SIZE;
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int last_bank = DIV_ROUND_UP(offset + size,
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CONFIG_FLASH_BANK_SIZE);
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int bank;
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for (bank = first_bank; bank < last_bank; ++bank)
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if (__host_flash_protect[bank])
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return 1;
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return 0;
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}
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static void flash_set_persistent(void)
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{
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FILE *f = get_persistent_storage("flash", "wb");
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int sz;
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ASSERT(f != NULL);
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sz = fwrite(__host_flash, sizeof(__host_flash), 1, f);
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ASSERT(sz == 1);
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release_persistent_storage(f);
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}
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static void flash_get_persistent(void)
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{
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FILE *f = get_persistent_storage("flash", "rb");
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if (f == NULL) {
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fprintf(stderr,
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"No flash storage found. Initializing to 0xff.\n");
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memset(__host_flash, 0xff, sizeof(__host_flash));
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return;
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}
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fread(__host_flash, sizeof(__host_flash), 1, f);
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release_persistent_storage(f);
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}
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int flash_physical_write(int offset, int size, const char *data)
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{
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ASSERT((size & (CONFIG_FLASH_WRITE_SIZE - 1)) == 0);
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if (flash_pre_op() != EC_SUCCESS)
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return EC_ERROR_UNKNOWN;
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if (flash_check_protect(offset, size))
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return EC_ERROR_ACCESS_DENIED;
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memcpy(__host_flash + offset, data, size);
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flash_set_persistent();
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return EC_SUCCESS;
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}
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int flash_physical_erase(int offset, int size)
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{
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ASSERT((size & (CONFIG_FLASH_ERASE_SIZE - 1)) == 0);
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if (flash_pre_op() != EC_SUCCESS)
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return EC_ERROR_UNKNOWN;
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if (flash_check_protect(offset, size))
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return EC_ERROR_ACCESS_DENIED;
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memset(__host_flash + offset, 0xff, size);
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flash_set_persistent();
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return EC_SUCCESS;
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}
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int flash_physical_get_protect(int bank)
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{
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return __host_flash_protect[bank];
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}
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uint32_t flash_physical_get_protect_flags(void)
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{
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int i;
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uint32_t flags = EC_FLASH_PROTECT_ALL_NOW;
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for (i = 0; i < PHYSICAL_BANKS; ++i)
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if (__host_flash_protect[i] == 0)
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flags = 0;
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return flags;
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}
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int flash_physical_protect_now(int all)
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{
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memset(__host_flash_protect, 1, all ? PHYSICAL_BANKS : RO_BANK_COUNT);
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return EC_SUCCESS;
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}
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int flash_pre_init(void)
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{
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uint32_t prot_flags;
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flash_get_persistent();
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prot_flags = flash_get_protect();
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if (prot_flags & EC_FLASH_PROTECT_GPIO_ASSERTED) {
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/*
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* Write protect is asserted. If we want RO flash protected,
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* protect it now.
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*/
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if ((prot_flags & EC_FLASH_PROTECT_RO_AT_BOOT) &&
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!(prot_flags & EC_FLASH_PROTECT_RO_NOW)) {
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int rv = flash_set_protect(EC_FLASH_PROTECT_RO_NOW,
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EC_FLASH_PROTECT_RO_NOW);
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if (rv)
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return rv;
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/* Re-read flags */
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prot_flags = flash_get_protect();
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}
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}
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return EC_SUCCESS;
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}
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