[U-Boot] [PATCH 7/8] dfu: command: Provide support for 'dfutftp' command to handle receiving data via TFTP

[Lukasz Majewski <l.majewski@majess.pl>]

Hi Joe,


> Hi Lukasz,
> 
> On Sun, Jul 12, 2015 at 10:30 AM, Lukasz Majewski
> <l.majewski@majess.pl> wrote:
> > The new 'dfutftp' command has syntax similar to 'dfu' command.
> > This new command however, requires some extra env variables to allow
> > update_tftp() code to work properly. For more explanation, please
> > consult ./doc/README.dfutftp
> 
> It would be great if it didn't require them. 

I've described reasoning for them in the previous reply.

> It would also be great if
> there were just a dfu command and "tftp" were a subcommand. It's a
> more common pattern now instead of adding new, top-level commands.

Good point. However, I've tried to avoid #ifdefs in the cmd_dfu.c code.
Some boards only use USB and they would not need support for tftp in
the cmd_dfu.c command.

Separate command allows adding the code only when it is needed.

> 
> > Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
> > ---
> >  common/Makefile      |  1 +
> >  common/cmd_dfutftp.c | 43
> > +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 44
> > insertions(+) create mode 100644 common/cmd_dfutftp.c
> >
> > diff --git a/common/Makefile b/common/Makefile
> > index d6c1d48..483905c 100644
> > --- a/common/Makefile
> > +++ b/common/Makefile
> > @@ -211,6 +211,7 @@ obj-$(CONFIG_UPDATE_TFTP) += update.o
> >  obj-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
> >  obj-$(CONFIG_CMD_DFU) += cmd_dfu.o
> >  obj-$(CONFIG_CMD_GPT) += cmd_gpt.o
> > +obj-$(CONFIG_CMD_DFUTFTP) += cmd_dfutftp.o
> >
> >  # Power
> >  obj-$(CONFIG_CMD_PMIC) += cmd_pmic.o
> > diff --git a/common/cmd_dfutftp.c b/common/cmd_dfutftp.c
> > new file mode 100644
> > index 0000000..2b75a09
> > --- /dev/null
> > +++ b/common/cmd_dfutftp.c
> > @@ -0,0 +1,43 @@
> > +/*
> > + * cmd_dfutftp.c -- dfutftp command
> > + *
> > + * Copyright (C) 2015
> > + * Lukasz Majewski <l.majewski@majess.pl>
> > + *
> > + * SPDX-License-Identifier:    GPL-2.0+
> > + */
> > +
> > +#include <common.h>
> > +#include <net.h>
> > +
> > +static
> > +int do_dfutftp(cmd_tbl_t *cmdtp, int flag, int argc, char * const
> > argv[]) +{
> > +       unsigned long addr = 0;
> > +
> > +       if (argc < 4 || argc > 5)
> > +               return CMD_RET_USAGE;
> > +
> > +       char *interface = argv[2];
> > +       char *devstring = argv[3];
> > +
> > +       if (argc == 5)
> > +               addr = simple_strtoul(argv[4], NULL, 0);
> > +
> > +       /* Below env variables are descibed in detail
> > at ./doc/README.dfutftp */
> > +       setenv("update_tftp_exec_at_boot", "true");
> > +       setenv("update_tftp_dfu", "true");
> > +       setenv("update_tftp_dfu_interface", interface);
> > +       setenv("update_tftp_dfu_devstring", devstring);
> > +
> > +       return update_tftp(addr);
> > +}
> > +
> > +U_BOOT_CMD(dfutftp, CONFIG_SYS_MAXARGS, 1, do_dfutftp,
> > +          "Device Firmware Upgrade via TFTP",
> > +          "<ETH_controller> <interface> <dev>\n"
> > +          "  - device firmware upgrade via <ETH_controller>\n"
> > +          "    using TFTP protocol on device <dev>, attached\n"
> > +          "    to interface <interface>\n"
> > +          "    [addr] - address where FIT image has been stored\n"
> > +);
> > --
> > 2.1.4
> >
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot

Best regards,
Lukasz Majewski
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