dfu: DFU backend implementation
New, separate driver at ./drivers/dfu has been added. It allows platform and storage independent operation of DFU. It has been extended to use new MMC level of command abstraction. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Vasut <marex@denx.de>
This commit is contained in:
Lukasz Majewski
Marek Vasut
parent
b819ddbf56
commit
f22b11c10d
1
Makefile
1
Makefile
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@ -269,6 +269,7 @@ LIBS-y += drivers/pci/libpci.o
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LIBS-y += drivers/pcmcia/libpcmcia.o
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LIBS-y += drivers/power/libpower.o
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LIBS-y += drivers/spi/libspi.o
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LIBS-y += drivers/dfu/libdfu.o
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ifeq ($(CPU),mpc83xx)
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LIBS-y += drivers/qe/libqe.o
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LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
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@ -0,0 +1,43 @@
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#
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# Copyright (C) 2012 Samsung Electronics
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# Lukasz Majewski <l.majewski@samsung.com>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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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 as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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LIB = $(obj)libdfu.o
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COBJS-$(CONFIG_DFU_FUNCTION) += dfu.o
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SRCS := $(COBJS-y:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS-y))
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$(LIB): $(obj).depend $(OBJS)
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$(call cmd_link_o_target, $(OBJS))
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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@ -0,0 +1,238 @@
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/*
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* dfu.c -- DFU back-end routines
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*
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* Copyright (C) 2012 Samsung Electronics
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* author: Lukasz Majewski <l.majewski@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <mmc.h>
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#include <fat.h>
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#include <dfu.h>
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#include <linux/list.h>
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#include <linux/compiler.h>
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static LIST_HEAD(dfu_list);
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static int dfu_alt_num;
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static int dfu_find_alt_num(const char *s)
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{
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int i = 0;
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for (; *s; s++)
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if (*s == ';')
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i++;
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return ++i;
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}
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static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
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dfu_buf[DFU_DATA_BUF_SIZE];
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int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
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{
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static unsigned char *i_buf;
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static int i_blk_seq_num;
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long w_size = 0;
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int ret = 0;
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debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
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__func__, dfu->name, buf, size, blk_seq_num, i_buf);
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if (blk_seq_num == 0) {
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i_buf = dfu_buf;
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i_blk_seq_num = 0;
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}
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if (i_blk_seq_num++ != blk_seq_num) {
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printf("%s: Wrong sequence number! [%d] [%d]\n",
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__func__, i_blk_seq_num, blk_seq_num);
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return -1;
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}
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memcpy(i_buf, buf, size);
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i_buf += size;
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if (size == 0) {
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/* Integrity check (if needed) */
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debug("%s: %s %d [B] CRC32: 0x%x\n", __func__, dfu->name,
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i_buf - dfu_buf, crc32(0, dfu_buf, i_buf - dfu_buf));
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w_size = i_buf - dfu_buf;
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ret = dfu->write_medium(dfu, dfu_buf, &w_size);
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if (ret)
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debug("%s: Write error!\n", __func__);
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i_blk_seq_num = 0;
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i_buf = NULL;
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return ret;
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}
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return ret;
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}
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int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
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{
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static unsigned char *i_buf;
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static int i_blk_seq_num;
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static long r_size;
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static u32 crc;
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int ret = 0;
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debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
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__func__, dfu->name, buf, size, blk_seq_num, i_buf);
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if (blk_seq_num == 0) {
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i_buf = dfu_buf;
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ret = dfu->read_medium(dfu, i_buf, &r_size);
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debug("%s: %s %ld [B]\n", __func__, dfu->name, r_size);
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i_blk_seq_num = 0;
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/* Integrity check (if needed) */
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crc = crc32(0, dfu_buf, r_size);
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}
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if (i_blk_seq_num++ != blk_seq_num) {
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printf("%s: Wrong sequence number! [%d] [%d]\n",
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__func__, i_blk_seq_num, blk_seq_num);
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return -1;
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}
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if (r_size >= size) {
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memcpy(buf, i_buf, size);
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i_buf += size;
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r_size -= size;
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return size;
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} else {
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memcpy(buf, i_buf, r_size);
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i_buf += r_size;
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debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name, crc);
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puts("UPLOAD ... done\nCtrl+C to exit ...\n");
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i_buf = NULL;
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i_blk_seq_num = 0;
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crc = 0;
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return r_size;
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}
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return ret;
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}
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static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
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char *interface, int num)
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{
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char *st;
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debug("%s: %s interface: %s num: %d\n", __func__, s, interface, num);
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st = strsep(&s, " ");
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strcpy(dfu->name, st);
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dfu->dev_num = num;
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dfu->alt = alt;
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/* Specific for mmc device */
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if (strcmp(interface, "mmc") == 0) {
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if (dfu_fill_entity_mmc(dfu, s))
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return -1;
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} else {
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printf("%s: Device %s not (yet) supported!\n",
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__func__, interface);
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return -1;
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}
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return 0;
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}
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void dfu_free_entities(void)
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{
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struct dfu_entity *dfu, *p, *t = NULL;
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list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) {
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list_del(&dfu->list);
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t = dfu;
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}
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if (t)
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free(t);
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INIT_LIST_HEAD(&dfu_list);
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}
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int dfu_config_entities(char *env, char *interface, int num)
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{
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struct dfu_entity *dfu;
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int i, ret;
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char *s;
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dfu_alt_num = dfu_find_alt_num(env);
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debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
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dfu = calloc(sizeof(*dfu), dfu_alt_num);
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if (!dfu)
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return -1;
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for (i = 0; i < dfu_alt_num; i++) {
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s = strsep(&env, ";");
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ret = dfu_fill_entity(&dfu[i], s, i, interface, num);
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if (ret)
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return -1;
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list_add_tail(&dfu[i].list, &dfu_list);
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}
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return 0;
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}
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const char *dfu_get_dev_type(enum dfu_device_type t)
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{
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const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND" };
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return dev_t[t];
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}
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const char *dfu_get_layout(enum dfu_layout l)
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{
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const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
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"EXT3", "EXT4" };
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return dfu_layout[l];
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}
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void dfu_show_entities(void)
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{
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struct dfu_entity *dfu;
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puts("DFU alt settings list:\n");
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list_for_each_entry(dfu, &dfu_list, list) {
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printf("dev: %s alt: %d name: %s layout: %s\n",
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dfu_get_dev_type(dfu->dev_type), dfu->alt,
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dfu->name, dfu_get_layout(dfu->layout));
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}
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}
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int dfu_get_alt_number(void)
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{
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return dfu_alt_num;
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}
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struct dfu_entity *dfu_get_entity(int alt)
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{
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struct dfu_entity *dfu;
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list_for_each_entry(dfu, &dfu_list, list) {
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if (dfu->alt == alt)
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return dfu;
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}
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return NULL;
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}
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@ -0,0 +1,103 @@
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/*
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* dfu.h - DFU flashable area description
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*
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* Copyright (C) 2012 Samsung Electronics
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* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __DFU_ENTITY_H_
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#define __DFU_ENTITY_H_
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#include <common.h>
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#include <linux/list.h>
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#include <mmc.h>
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enum dfu_device_type {
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DFU_DEV_MMC = 1,
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DFU_DEV_ONENAND,
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DFU_DEV_NAND,
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};
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enum dfu_layout {
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DFU_RAW_ADDR = 1,
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DFU_FS_FAT,
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DFU_FS_EXT2,
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DFU_FS_EXT3,
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DFU_FS_EXT4,
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};
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struct mmc_internal_data {
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/* RAW programming */
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unsigned int lba_start;
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unsigned int lba_size;
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unsigned int lba_blk_size;
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/* FAT/EXT */
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unsigned int dev;
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unsigned int part;
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};
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static inline unsigned int get_mmc_blk_size(int dev)
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{
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return find_mmc_device(dev)->read_bl_len;
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}
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#define DFU_NAME_SIZE 32
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#define DFU_CMD_BUF_SIZE 128
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#define DFU_DATA_BUF_SIZE (1024*1024*4) /* 4 MiB */
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struct dfu_entity {
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char name[DFU_NAME_SIZE];
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int alt;
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void *dev_private;
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int dev_num;
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enum dfu_device_type dev_type;
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enum dfu_layout layout;
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union {
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struct mmc_internal_data mmc;
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} data;
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int (*read_medium)(struct dfu_entity *dfu, void *buf, long *len);
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int (*write_medium)(struct dfu_entity *dfu, void *buf, long *len);
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struct list_head list;
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};
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int dfu_config_entities(char *s, char *interface, int num);
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void dfu_free_entities(void);
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void dfu_show_entities(void);
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int dfu_get_alt_number(void);
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const char *dfu_get_dev_type(enum dfu_device_type t);
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const char *dfu_get_layout(enum dfu_layout l);
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struct dfu_entity *dfu_get_entity(int alt);
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char *dfu_extract_token(char** e, int *n);
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int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
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int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
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/* Device specific */
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#ifdef CONFIG_DFU_MMC
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extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
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#else
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static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
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{
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puts("MMC support not available!\n");
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return -1;
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}
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#endif
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#endif /* __DFU_ENTITY_H_ */
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