diff options
Diffstat (limited to 'drivers/dfu')
| -rw-r--r-- | drivers/dfu/Makefile | 44 | ||||
| -rw-r--r-- | drivers/dfu/dfu.c | 238 | ||||
| -rw-r--r-- | drivers/dfu/dfu_mmc.c | 182 |
3 files changed, 464 insertions, 0 deletions
diff --git a/drivers/dfu/Makefile b/drivers/dfu/Makefile new file mode 100644 index 0000000..7b717bc --- /dev/null +++ b/drivers/dfu/Makefile @@ -0,0 +1,44 @@ +# +# Copyright (C) 2012 Samsung Electronics +# Lukasz Majewski <l.majewski@samsung.com> +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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; either version 2 of +# the License, or (at your option) any later version. +# +# 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. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)libdfu.o + +COBJS-$(CONFIG_DFU_FUNCTION) += dfu.o +COBJS-$(CONFIG_DFU_MMC) += dfu_mmc.o + +SRCS := $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c new file mode 100644 index 0000000..e8477fb --- /dev/null +++ b/drivers/dfu/dfu.c @@ -0,0 +1,238 @@ +/* + * dfu.c -- DFU back-end routines + * + * Copyright (C) 2012 Samsung Electronics + * author: Lukasz Majewski <l.majewski@samsung.com> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <common.h> +#include <malloc.h> +#include <mmc.h> +#include <fat.h> +#include <dfu.h> +#include <linux/list.h> +#include <linux/compiler.h> + +static LIST_HEAD(dfu_list); +static int dfu_alt_num; + +static int dfu_find_alt_num(const char *s) +{ + int i = 0; + + for (; *s; s++) + if (*s == ';') + i++; + + return ++i; +} + +static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE) + dfu_buf[DFU_DATA_BUF_SIZE]; + +int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) +{ + static unsigned char *i_buf; + static int i_blk_seq_num; + long w_size = 0; + int ret = 0; + + debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n", + __func__, dfu->name, buf, size, blk_seq_num, i_buf); + + if (blk_seq_num == 0) { + i_buf = dfu_buf; + i_blk_seq_num = 0; + } + + if (i_blk_seq_num++ != blk_seq_num) { + printf("%s: Wrong sequence number! [%d] [%d]\n", + __func__, i_blk_seq_num, blk_seq_num); + return -1; + } + + memcpy(i_buf, buf, size); + i_buf += size; + + if (size == 0) { + /* Integrity check (if needed) */ + debug("%s: %s %d [B] CRC32: 0x%x\n", __func__, dfu->name, + i_buf - dfu_buf, crc32(0, dfu_buf, i_buf - dfu_buf)); + + w_size = i_buf - dfu_buf; + ret = dfu->write_medium(dfu, dfu_buf, &w_size); + if (ret) + debug("%s: Write error!\n", __func__); + + i_blk_seq_num = 0; + i_buf = NULL; + return ret; + } + + return ret; +} + +int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) +{ + static unsigned char *i_buf; + static int i_blk_seq_num; + static long r_size; + static u32 crc; + int ret = 0; + + debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n", + __func__, dfu->name, buf, size, blk_seq_num, i_buf); + + if (blk_seq_num == 0) { + i_buf = dfu_buf; + ret = dfu->read_medium(dfu, i_buf, &r_size); + debug("%s: %s %ld [B]\n", __func__, dfu->name, r_size); + i_blk_seq_num = 0; + /* Integrity check (if needed) */ + crc = crc32(0, dfu_buf, r_size); + } + + if (i_blk_seq_num++ != blk_seq_num) { + printf("%s: Wrong sequence number! [%d] [%d]\n", + __func__, i_blk_seq_num, blk_seq_num); + return -1; + } + + if (r_size >= size) { + memcpy(buf, i_buf, size); + i_buf += size; + r_size -= size; + return size; + } else { + memcpy(buf, i_buf, r_size); + i_buf += r_size; + debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name, crc); + puts("UPLOAD ... done\nCtrl+C to exit ...\n"); + + i_buf = NULL; + i_blk_seq_num = 0; + crc = 0; + return r_size; + } + return ret; +} + +static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt, + char *interface, int num) +{ + char *st; + + debug("%s: %s interface: %s num: %d\n", __func__, s, interface, num); + st = strsep(&s, " "); + strcpy(dfu->name, st); + + dfu->dev_num = num; + dfu->alt = alt; + + /* Specific for mmc device */ + if (strcmp(interface, "mmc") == 0) { + if (dfu_fill_entity_mmc(dfu, s)) + return -1; + } else { + printf("%s: Device %s not (yet) supported!\n", + __func__, interface); + return -1; + } + + return 0; +} + +void dfu_free_entities(void) +{ + struct dfu_entity *dfu, *p, *t = NULL; + + list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) { + list_del(&dfu->list); + t = dfu; + } + if (t) + free(t); + INIT_LIST_HEAD(&dfu_list); +} + +int dfu_config_entities(char *env, char *interface, int num) +{ + struct dfu_entity *dfu; + int i, ret; + char *s; + + dfu_alt_num = dfu_find_alt_num(env); + debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num); + + dfu = calloc(sizeof(*dfu), dfu_alt_num); + if (!dfu) + return -1; + for (i = 0; i < dfu_alt_num; i++) { + + s = strsep(&env, ";"); + ret = dfu_fill_entity(&dfu[i], s, i, interface, num); + if (ret) + return -1; + + list_add_tail(&dfu[i].list, &dfu_list); + } + + return 0; +} + +const char *dfu_get_dev_type(enum dfu_device_type t) +{ + const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND" }; + return dev_t[t]; +} + +const char *dfu_get_layout(enum dfu_layout l) +{ + const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2", + "EXT3", "EXT4" }; + return dfu_layout[l]; +} + +void dfu_show_entities(void) +{ + struct dfu_entity *dfu; + + puts("DFU alt settings list:\n"); + + list_for_each_entry(dfu, &dfu_list, list) { + printf("dev: %s alt: %d name: %s layout: %s\n", + dfu_get_dev_type(dfu->dev_type), dfu->alt, + dfu->name, dfu_get_layout(dfu->layout)); + } +} + +int dfu_get_alt_number(void) +{ + return dfu_alt_num; +} + +struct dfu_entity *dfu_get_entity(int alt) +{ + struct dfu_entity *dfu; + + list_for_each_entry(dfu, &dfu_list, list) { + if (dfu->alt == alt) + return dfu; + } + + return NULL; +} diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c new file mode 100644 index 0000000..5d504df --- /dev/null +++ b/drivers/dfu/dfu_mmc.c @@ -0,0 +1,182 @@ +/* + * dfu.c -- DFU back-end routines + * + * Copyright (C) 2012 Samsung Electronics + * author: Lukasz Majewski <l.majewski@samsung.com> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <common.h> +#include <malloc.h> +#include <dfu.h> + +enum dfu_mmc_op { + DFU_OP_READ = 1, + DFU_OP_WRITE, +}; + +static int mmc_block_op(enum dfu_mmc_op op, struct dfu_entity *dfu, + void *buf, long *len) +{ + char cmd_buf[DFU_CMD_BUF_SIZE]; + + sprintf(cmd_buf, "mmc %s 0x%x %x %x", + op == DFU_OP_READ ? "read" : "write", + (unsigned int) buf, + dfu->data.mmc.lba_start, + dfu->data.mmc.lba_size); + + if (op == DFU_OP_READ) + *len = dfu->data.mmc.lba_blk_size * dfu->data.mmc.lba_size; + + debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf); + return run_command(cmd_buf, 0); +} + +static inline int mmc_block_write(struct dfu_entity *dfu, void *buf, long *len) +{ + return mmc_block_op(DFU_OP_WRITE, dfu, buf, len); +} + +static inline int mmc_block_read(struct dfu_entity *dfu, void *buf, long *len) +{ + return mmc_block_op(DFU_OP_READ, dfu, buf, len); +} + +static int mmc_file_op(enum dfu_mmc_op op, struct dfu_entity *dfu, + void *buf, long *len) +{ + char cmd_buf[DFU_CMD_BUF_SIZE]; + char *str_env; + int ret; + + switch (dfu->layout) { + case DFU_FS_FAT: + sprintf(cmd_buf, "fat%s mmc %d:%d 0x%x %s %lx", + op == DFU_OP_READ ? "load" : "write", + dfu->data.mmc.dev, dfu->data.mmc.part, + (unsigned int) buf, dfu->name, *len); + break; + case DFU_FS_EXT4: + sprintf(cmd_buf, "ext4%s mmc %d:%d /%s 0x%x %ld", + op == DFU_OP_READ ? "load" : "write", + dfu->data.mmc.dev, dfu->data.mmc.part, + dfu->name, (unsigned int) buf, *len); + break; + default: + printf("%s: Layout (%s) not (yet) supported!\n", __func__, + dfu_get_layout(dfu->layout)); + } + + debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf); + + ret = run_command(cmd_buf, 0); + if (ret) { + puts("dfu: Read error!\n"); + return ret; + } + + if (dfu->layout != DFU_RAW_ADDR && op == DFU_OP_READ) { + str_env = getenv("filesize"); + if (str_env == NULL) { + puts("dfu: Wrong file size!\n"); + return -1; + } + *len = simple_strtoul(str_env, NULL, 16); + } + + return ret; +} + +static inline int mmc_file_write(struct dfu_entity *dfu, void *buf, long *len) +{ + return mmc_file_op(DFU_OP_WRITE, dfu, buf, len); +} + +static inline int mmc_file_read(struct dfu_entity *dfu, void *buf, long *len) +{ + return mmc_file_op(DFU_OP_READ, dfu, buf, len); +} + +int dfu_write_medium_mmc(struct dfu_entity *dfu, void *buf, long *len) +{ + int ret = -1; + + switch (dfu->layout) { + case DFU_RAW_ADDR: + ret = mmc_block_write(dfu, buf, len); + break; + case DFU_FS_FAT: + case DFU_FS_EXT4: + ret = mmc_file_write(dfu, buf, len); + break; + default: + printf("%s: Layout (%s) not (yet) supported!\n", __func__, + dfu_get_layout(dfu->layout)); + } + + return ret; +} + +int dfu_read_medium_mmc(struct dfu_entity *dfu, void *buf, long *len) +{ + int ret = -1; + + switch (dfu->layout) { + case DFU_RAW_ADDR: + ret = mmc_block_read(dfu, buf, len); + break; + case DFU_FS_FAT: + case DFU_FS_EXT4: + ret = mmc_file_read(dfu, buf, len); + break; + default: + printf("%s: Layout (%s) not (yet) supported!\n", __func__, + dfu_get_layout(dfu->layout)); + } + + return ret; +} + +int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s) +{ + char *st; + + dfu->dev_type = DFU_DEV_MMC; + st = strsep(&s, " "); + if (!strcmp(st, "mmc")) { + dfu->layout = DFU_RAW_ADDR; + dfu->data.mmc.lba_start = simple_strtoul(s, &s, 16); + dfu->data.mmc.lba_size = simple_strtoul(++s, &s, 16); + dfu->data.mmc.lba_blk_size = get_mmc_blk_size(dfu->dev_num); + } else if (!strcmp(st, "fat")) { + dfu->layout = DFU_FS_FAT; + } else if (!strcmp(st, "ext4")) { + dfu->layout = DFU_FS_EXT4; + } else { + printf("%s: Memory layout (%s) not supported!\n", __func__, st); + } + + if (dfu->layout == DFU_FS_EXT4 || dfu->layout == DFU_FS_FAT) { + dfu->data.mmc.dev = simple_strtoul(s, &s, 10); + dfu->data.mmc.part = simple_strtoul(++s, &s, 10); + } + + dfu->read_medium = dfu_read_medium_mmc; + dfu->write_medium = dfu_write_medium_mmc; + + return 0; +} |