[U-Boot] [PATCH 4/6] usb:command: Support for USB Download command
Marek Vasut
marex at denx.de
Sat Apr 14 12:04:37 CEST 2012
Dear Lukasz Majewski,
> Support for usbdownload command, which starts USB Downloading process
> compliant with Samsung's THOR protocol.
>
> Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> Cc: Marek Vasut <marex at denx.de>
> ---
> common/Makefile | 1 +
> common/cmd_usbd.c | 161
> +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 162
> insertions(+), 0 deletions(-)
> create mode 100644 common/cmd_usbd.c
>
> diff --git a/common/Makefile b/common/Makefile
> index d9f10f3..2392893 100644
> --- a/common/Makefile
> +++ b/common/Makefile
> @@ -161,6 +161,7 @@ COBJS-y += cmd_usb.o
> COBJS-y += usb.o usb_hub.o
> COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
> endif
> +COBJS-$(CONFIG_USBDOWNLOAD_GADGET) += cmd_usbd.o
CONFIG_USB_GADGET_DOWNLOAD please.
> COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
> COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
> COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
> diff --git a/common/cmd_usbd.c b/common/cmd_usbd.c
> new file mode 100644
> index 0000000..583f2a5
> --- /dev/null
> +++ b/common/cmd_usbd.c
> @@ -0,0 +1,161 @@
> +/*
> + * cmd_usbd.c -- USB THOR Downloader gadget
> + *
> + * Copyright (C) 2012 Lukasz Majewski <l.majewski at samsung.com>
> + * 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; 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 + */
> +#define DEBUG
> +#include <common.h>
> +#include <usbd_thor.h>
> +#include <asm/errno.h>
> +#include <malloc.h>
> +#include <g_dnl.h>
> +
> +#define STR_SIZE 16
> +
> +static char dnl_tab[4][STR_SIZE];
> +
> +char *find_dnl_entry(char* s, char *name)
> +{
> + char *st, *c;
> +
> + for (; s; strsep(&s, ";"), st = s) {
> + st = strchr(s, ' ');
> +
> + if (!strncmp(s, name, st - s)) {
> + for (c = s; c; strsep(&c, ";"))
> + ;
> + return s;
> + }
> + }
> + return NULL;
Don't we have some kind of function for this already? Also, do I see correctly
that you use semicolon as a separator ?
> +}
> +
> +int img_store(struct g_dnl *dnl, int medium)
> +{
> + char cmd_buf[128];
> +
> + memset(cmd_buf, '\0', sizeof(cmd_buf));
> +
> + switch (medium) {
> + case MMC:
> + sprintf(cmd_buf, "%s write 0x%x %s %s", &dnl_tab[1][0],
> + (unsigned int) dnl->rx_buf, &dnl_tab[2][0],
> + &dnl_tab[3][0]);
> + break;
> + case FAT:
> + sprintf(cmd_buf, "%swrite mmc %s:%s 0x%x %s %x",
> + &dnl_tab[1][0], &dnl_tab[2][0], &dnl_tab[3][0],
> + (unsigned int) dnl->rx_buf, &dnl_tab[0][0],
> + dnl->file_size);
> + break;
> + case RAW:
> + sprintf(cmd_buf, "mmc write 0x%x %x %x",
> + (unsigned int) dnl->rx_buf, dnl->p, dnl->packet_size);
> + break;
> + }
> +
> + debug("%s: %s\n", __func__, cmd_buf);
> + run_command(cmd_buf, 0);
> +
> + return 0;
> +}
> +
> +int do_usbd_down(cmd_tbl_t *cmdtp, int flag, int argc, char * const
> argv[]) +{
> + /* Simple argv[0] passing is not working since 'usbdown' cmd can
> + be run by */
> + /* 'usb', 'usbd' or 'usbdown' */
> + char *str, *st, *str_env;
> +
> + int ret = 0, i = 0;
> + static char *s = "thor";
> + static struct g_dnl *dnl;
> +
> + dnl = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(struct g_dnl));
> +
> + puts("THOR Downloader\n");
> +
> + g_dnl_init(s, dnl);
> +
> + ret = dnl_init(dnl);
> + if (ret)
> + printf("%s: USBDOWN failed\n", __func__);
What's "USBDOWN failed"? It's not expressive enough ;-)
> +
> + ret = dnl_command(dnl);
> + if (ret < 0)
> + printf("%s: COMMAND failed: %d\n", __func__, ret);
> +
> + debug("DNL: file:%s size:%d\n", dnl->file_name, dnl->file_size);
> +
> + str_env = getenv("dnl_info");
> + if (str_env == NULL) {
> + puts("DNL: \"dnl_info\" variable not defined!\n");
> + return -1;
> + }
> + debug("dnl_info: %s\n", str_env);
> +
> + str = find_dnl_entry(str_env, dnl->file_name);
> + if (str == NULL) {
> + printf("File: %s not at \"dnl_info\"!\n", dnl->file_name);
> + return -1;
> + }
> +
> + debug("%s:str: %s\n", __func__, str);
> +
> + memset(dnl_tab, '\0', sizeof(dnl_tab));
> + do {
> + st = strsep(&str, " ");
> + strncpy(&dnl_tab[i++][0], st, strlen(st));
> +
> + } while (str);
> +
> + if (strncmp(dnl->file_name, &dnl_tab[0][0], strlen(&dnl_tab[0][0]))) {
> + printf("Parsed string not match file: %s!\n", dnl->file_name);
> + return -1;
> + }
> +
> + debug("%s %s %s %s\n", &dnl_tab[0][0], &dnl_tab[1][0],
> + &dnl_tab[2][0], &dnl_tab[3][0]);
> +
> + if (!strncmp(&dnl_tab[1][0], "mmc", strlen("mmc"))) {
> + dnl->store = img_store;
> + dnl->medium = MMC;
> + } else if (!strncmp(&dnl_tab[1][0], "fat", strlen("fat"))) {
> + dnl->store = img_store;
> + dnl->medium = FAT;
> + } else if (!strncmp(&dnl_tab[1][0], "raw", strlen("raw"))) {
> + dnl->store = img_store;
> + dnl->medium = RAW;
> + } else {
> + printf("DNL: Medium: %s not recognized!", &dnl_tab[1][0]);
> + }
> +
> + ret = dnl_download(dnl);
> + if (ret < 0)
> + printf("%s: DOWNLOAD failed: %d\n", __func__, ret);
> +
> + ret = dnl_command(dnl);
> + if (ret < 0)
> + printf("%s: COMMAND failed: %d\n", __func__, ret);
> +
> + return 0;
> +}
> +
> +U_BOOT_CMD(usbdown, CONFIG_SYS_MAXARGS, 1, do_usbd_down,
> + "Initialize USB device and Run THOR USB downloader", NULL
> +);
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