Alexander Couzens (lynxis@fe80.eu) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16569
-gerrit
commit 761d5963e5ce2c95c6c4c92648a59b6647946629 Author: Alexander Couzens lynxis@fe80.eu Date: Sat Sep 10 13:30:32 2016 +0200
ifdtool: refactor VSCC table parsing
- move into own files - use structs instead of bit operations
Change-Id: I15780068ff5827bc4381a2e951e1c4384dd4c18e Signed-off-by: Alexander Couzens lynxis@fe80.eu --- util/ifdtool/Makefile | 2 +- util/ifdtool/ifdtool.c | 77 +--------------------------------------------- util/ifdtool/ifdtool.h | 11 ------- util/ifdtool/vtba.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++ util/ifdtool/vtba.h | 59 +++++++++++++++++++++++++++++++++++ 5 files changed, 144 insertions(+), 88 deletions(-)
diff --git a/util/ifdtool/Makefile b/util/ifdtool/Makefile index 7a1bcfa..f1287ca 100644 --- a/util/ifdtool/Makefile +++ b/util/ifdtool/Makefile @@ -21,7 +21,7 @@ PREFIX = /usr/local CFLAGS = -O2 -g -Wall -W -Werror LDFLAGS =
-OBJS = ifdtool.o +OBJS = ifdtool.o vtba.o
all: dep $(PROGRAM)
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 85c6d4d..4b1c211 100644 --- a/util/ifdtool/ifdtool.c +++ b/util/ifdtool/ifdtool.c @@ -22,6 +22,7 @@ #include <sys/types.h> #include <sys/stat.h> #include "ifdtool.h" +#include "vtba.h"
#ifndef O_BINARY #define O_BINARY 0 @@ -510,82 +511,6 @@ static void dump_fmsba(fmsba_t * fmsba) printf("????: 0x%08x\n", fmsba->data[3]); }
-static void dump_jid(uint32_t jid) -{ - printf(" SPI Componend Device ID 1: 0x%02x\n", - (jid >> 16) & 0xff); - printf(" SPI Componend Device ID 0: 0x%02x\n", - (jid >> 8) & 0xff); - printf(" SPI Componend Vendor ID: 0x%02x\n", - jid & 0xff); -} - -static void dump_vscc(uint32_t vscc) -{ - printf(" Lower Erase Opcode: 0x%02x\n", - vscc >> 24); - printf(" Lower Write Enable on Write Status: 0x%02x\n", - vscc & (1 << 20) ? 0x06 : 0x50); - printf(" Lower Write Status Required: %s\n", - vscc & (1 << 19) ? "Yes" : "No"); - printf(" Lower Write Granularity: %d bytes\n", - vscc & (1 << 18) ? 64 : 1); - printf(" Lower Block / Sector Erase Size: "); - switch ((vscc >> 16) & 0x3) { - case 0: - printf("256 Byte\n"); - break; - case 1: - printf("4KB\n"); - break; - case 2: - printf("8KB\n"); - break; - case 3: - printf("64KB\n"); - break; - } - - printf(" Upper Erase Opcode: 0x%02x\n", - (vscc >> 8) & 0xff); - printf(" Upper Write Enable on Write Status: 0x%02x\n", - vscc & (1 << 4) ? 0x06 : 0x50); - printf(" Upper Write Status Required: %s\n", - vscc & (1 << 3) ? "Yes" : "No"); - printf(" Upper Write Granularity: %d bytes\n", - vscc & (1 << 2) ? 64 : 1); - printf(" Upper Block / Sector Erase Size: "); - switch (vscc & 0x3) { - case 0: - printf("256 Byte\n"); - break; - case 1: - printf("4KB\n"); - break; - case 2: - printf("8KB\n"); - break; - case 3: - printf("64KB\n"); - break; - } -} - -static void dump_vtba(vtba_t *vtba, int vtl) -{ - int i; - int num = (vtl >> 1) < 8 ? (vtl >> 1) : 8; - - printf("ME VSCC table:\n"); - for (i = 0; i < num; i++) { - printf(" JID%d: 0x%08x\n", i, vtba->entry[i].jid); - dump_jid(vtba->entry[i].jid); - printf(" VSCC%d: 0x%08x\n", i, vtba->entry[i].vscc); - dump_vscc(vtba->entry[i].vscc); - } - printf("\n"); -} - static void dump_oem(uint8_t *oem) { int i, j; diff --git a/util/ifdtool/ifdtool.h b/util/ifdtool/ifdtool.h index 7878712..2b5da4f 100644 --- a/util/ifdtool/ifdtool.h +++ b/util/ifdtool/ifdtool.h @@ -120,17 +120,6 @@ typedef struct { uint32_t data[8]; } __attribute__((packed)) fmsba_t;
-// ME VSCC -typedef struct { - uint32_t jid; - uint32_t vscc; -} vscc_t; - -typedef struct { - // Actual number of entries specified in vtl - vscc_t entry[8]; -} vtba_t; - typedef struct { int base, limit, size; } region_t; diff --git a/util/ifdtool/vtba.c b/util/ifdtool/vtba.c new file mode 100644 index 0000000..0194dde --- /dev/null +++ b/util/ifdtool/vtba.c @@ -0,0 +1,83 @@ +/* + * vscc table tool + * + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * Copyright (C) 2016 Alexander Couzens lynxis@fe80.eu + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <stdio.h> +#include <sys/types.h> + +#include "vtba.h" + + +static void dump_jid(struct jid *jid) +{ + printf(" SPI Componend Device ID 1: 0x%02x\n", + jid->device_id1); + printf(" SPI Componend Device ID 0: 0x%02x\n", + jid->device_id0); + printf(" SPI Componend Vendor ID: 0x%02x\n", + jid->vendor); +} + +static void dump_vscc_entry(const char *prefix, struct vscc_entry *entry) +{ + printf(" %s Erase Opcode: 0x%02x\n", + prefix, entry->erase_opcode); + printf(" %s Write Enable on Write Status: 0x%02x\n", + prefix, entry->write_enable_on_write_status ? 0x06 : 0x50); + printf(" %s Write Status Required: %s\n", + prefix, entry->status_required ? "Yes" : "No"); + printf(" %s Write Granularity: %d bytes\n", + prefix, entry->granularity ? 64 : 1); + printf(" %s Block / Sector Erase Size: ", prefix); + switch ((enum sector_size) entry->sector_size) { + case SECTOR_256B: + printf("256 Byte\n"); + break; + case SECTOR_4KB: + printf("4KB\n"); + break; + case SECTOR_8KB: + printf("8KB\n"); + break; + case SECTOR_64KB: + printf("64KB\n"); + break; + default: + printf("Unknown %x\n", entry->sector_size); + } +} + +static void dump_vscc(struct vscc *vscc) +{ + dump_vscc_entry("Lower", &vscc->lower); + dump_vscc_entry("Upper", &vscc->upper); +} + +void dump_vtba(vtba_t *vtba, int vtl) +{ + int i; + int num = (vtl >> 1) < 8 ? (vtl >> 1) : 8; + + printf("ME VSCC table:\n"); + for (i = 0; i < num; i++) { + printf(" JID%d: 0x%08x\n", + i, (*((uint32_t *) &vtba->entry[i].jid))); + dump_jid(&vtba->entry[i].jid); + printf(" VSCC%d: 0x%08x\n", + i, (*((uint32_t *) &vtba->entry[i].vscc))); + dump_vscc(&vtba->entry[i].vscc); + } + printf("\n"); +} diff --git a/util/ifdtool/vtba.h b/util/ifdtool/vtba.h new file mode 100644 index 0000000..cf8dd3f --- /dev/null +++ b/util/ifdtool/vtba.h @@ -0,0 +1,59 @@ +/* + * ifdtool - dump Intel Firmware Descriptor information + * + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <stdint.h> + +// ME VSCC + +enum sector_size { + SECTOR_256B = 0, + SECTOR_4KB, + SECTOR_8KB, + SECTOR_64KB, +}; + +/* 16 bit */ +struct vscc_entry { + int sector_size:2; + int granularity:1; + int status_required:1; + int write_enable_on_write_status:1; + int blank:3; + uint8_t erase_opcode; +} __attribute__((packed)); + +struct vscc { + struct vscc_entry upper; + struct vscc_entry lower; +} __attribute__((packed)); + +struct jid { + uint8_t vendor; + uint8_t device_id0; + uint8_t device_id1; + uint8_t blank; +} __attribute__((packed)); + +struct vss_combined { + struct jid jid; + struct vscc vscc; +} __attribute__((packed)); + +typedef struct { + // Actual number of entries specified in vtl + struct vss_combined entry[8]; +} vtba_t; + +void dump_vtba(vtba_t *vtba, int vtl);