gitignore: Add m4 directory, libtool and *.swp files

Change-Id: I1ea7a5fce49ea4c398741412094e642d092cdb7b
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>

mboxd: Zero ioctl() map struct

Change-Id: I5528432af3e211bbac7d86cdf7e57beb0d1a6c0b
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>

autoconf: Don't depend on systemd

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>

Fix MBOX_C_RESET_STATE command crash

Currently MBOX_C_RESET_STATE tries to access
context->fds[LPC_CTRL_FD].fd but it's set to a negative value to avoid
being part of the poll loop. This causes MBO

Fix MBOX_C_RESET_STATE command crash

Currently MBOX_C_RESET_STATE tries to access
context->fds[LPC_CTRL_FD].fd but it's set to a negative value to avoid
being part of the poll loop. This causes MBOX_C_RESET_STATE command
crashes with:

[MBOXD 1479755597.524480127] Couldn't MAP the host LPC bus to the platform flash
[MBOXD 1479755597.524710309] Couldn't point the LPC BUS back to actual flash
[MBOXD 1479755597.525068895] Error handling MBOX event: Bad file descriptor

This patches removes the negative FDs and setups up a polls FD number
for the number of FDs to poll.

Signed-off-by: Michael Neuling <mikey@neuling.org>

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mboxd: Add command-line option to specify platform flash size

Convert to autotools

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>

Enable SIGHUP to reset point to flash are reread flash.

Initial .gitignore file

mboxd: Use MAP ioctl() to reset to flash

mboxd: Whitespace cleanups

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>

mboxd: Fixup unused-result compilation warning

cc -Wall -O2 -g -I. -DPREFIX="\"MBOXD\"" mboxd.c common.o -o mboxd
mboxd.c: In function ‘dispatch_mbox’:
mboxd.c:170:5: warning: ignoring return v

mboxd: Fixup unused-result compilation warning

cc -Wall -O2 -g -I. -DPREFIX="\"MBOXD\"" mboxd.c common.o -o mboxd
mboxd.c: In function ‘dispatch_mbox’:
mboxd.c:170:5: warning: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Wunused-result]
read(-context->fds[MTD_FD].fd, context->lpc_mem, context->size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>

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mboxd: Test the single write functionality

README.md

mboxd: Stripped down super simple daemon

This daemon may prove useful for debugging and for adding features.

Production daemons will likely need to be better designed

First commit