[flashrom] [PATCH 1/3] serprog: add SPI support
Stefan Tauner
stefan.tauner at student.tuwien.ac.at
Fri Sep 16 01:37:13 CEST 2011
On Thu, 15 Sep 2011 21:59:30 +0200
Uwe Hermann <uwe at hermann-uwe.de> wrote:
> On Thu, Sep 08, 2011 at 12:56:21AM +0200, Stefan Tauner wrote:
> > + 0x13 (O_SPIOP):
> > + Send and receive bytes via SPI.
> > + Maximum slen is Q_WRNMAXLEN result after Q_BUSTYPE returns
> ^
> Full stop.
>
>
> > + only SPI or S_BUSTYPE == SPI is used. Same for rlen and Q_RDNMAXLEN.
> ^
> Capitalize
hm i think urja wanted this to be in one sentence otherwise it does not
make sense.
i have changed this now to
"Maximum slen is Q_WRNMAXLEN in case Q_BUSTYPE returns SPI only or
S_BUSTYPE was used to set SPI exclusively before. Same for rlen and Q_RDNMAXLEN."
> > + if (sp_docommand(S_CMD_Q_BUSTYPE, 0, NULL, 1, &c)) {
> > + msg_perr("Warning: NAK to query supported buses\n");
>
> perr and "Warning" doesn't sound consistent, but can be fixed in
> another patch.
yes, but it is used all over the place.
> > + if (!sp_docommand(S_CMD_Q_RDNMAXLEN, 0, NULL, 3, rbuf)) {
> > + uint32_t v;
> > + v = ((unsigned int)(rbuf[0]) << 0);
> > + v |= ((unsigned int)(rbuf[1]) << 8);
> > + v |= ((unsigned int)(rbuf[2]) << 16);
>
> Why (unsigned int) and not (uint32_t)? This is done in multiple places.
i have no idea actually, i just moved the code :)
i have left it alone for now. this can be fixed later too.
> > + if (!sp_check_commandavail(S_CMD_O_DELAY)) {
> > + internal_delay(delay);
> > + msg_pdbg("Note: serprog_delay used, but the programmer doesnt support delay\n");
>
> doesnt -> doesn't
and 80 char limit..
> > + for(i = 0; i < len; ) {
> ^
> missing space
the missing third argument is a more WTF imho. especially since the
increment is done in the last line of the for body anyway... i have
moved it from there into the head of the for instruction.
> Otherwise
> Acked-by: Uwe Hermann <uwe at hermann-uwe.de>
thanks for the review! i hope this is quite useful for some (future)
users. committed in r1442.
--
Kind regards/Mit freundlichen Grüßen, Stefan Tauner
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