Add plug and play information macro for SPI bus.

Matching table format is compatible with ACPI_ID_PROBE bus method.

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags

These feature are required for an upcoming Apple MacBook topcase
(HID over SPI) driver:

A delay after toggling CS is required to av

spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags

These feature are required for an upcoming Apple MacBook topcase
(HID over SPI) driver:

A delay after toggling CS is required to avoid anomalies like an extra
junk byte in front of the message. Keeping CS asserted is required to
be able to read a status report after writing a command. (The device
won't return the status if CS was deasserted.)

Sleep is not allowed in the interrupt context where the Apple input
driver runs its transactions. Use a flag to tell the SPI driver to
avoid mtx_sleep.

Reviewed by: manu (ok to SPI part of larger patch)
MFC afret: 1 month
Differential revision: https://reviews.freebsd.org/D29534

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spibus: clean up empty lines in .c and .h files

Regularize my copyright notice

o Remove All Rights Reserved from my notices
o imp@FreeBSD.org everywhere
o regularize punctiation, eliminate date ranges
o Make sure that it's clear that I don't clai

Regularize my copyright notice

o Remove All Rights Reserved from my notices
o imp@FreeBSD.org everywhere
o regularize punctiation, eliminate date ranges
o Make sure that it's clear that I don't claim All Rights reserved by listing
All Rights Reserved on same line as other copyright holders (but not
me). Other such holders are also listed last where it's clear.

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MFHead @348740

Sponsored by: The FreeBSD Foundation

Use the new FDTCOMPAT_PNP_INFO() macro to define SPIBUS_FDT_PNP_INFO().
Also rename SPIBUS_PNP_INFO -> SPIBUS_FDT_PNP_INFO because there could be
other kinds of pnpinfo for other (non-fdt) bus attach

Use the new FDTCOMPAT_PNP_INFO() macro to define SPIBUS_FDT_PNP_INFO().
Also rename SPIBUS_PNP_INFO -> SPIBUS_FDT_PNP_INFO because there could be
other kinds of pnpinfo for other (non-fdt) bus attachments.

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MFH r338661 through r339200.

Sponsored by: The FreeBSD Foundation

Merge ^/head r338731 through r338987.

Reapply, with minor tweaks, r338025, from the original commit:

Remove unused and easy to misuse PNP macro parameter

Inspired by r338025, just remove the element size parameter to the
MODULE_PNP_INF

Reapply, with minor tweaks, r338025, from the original commit:

Remove unused and easy to misuse PNP macro parameter

Inspired by r338025, just remove the element size parameter to the
MODULE_PNP_INFO macro entirely. The 'table' parameter is now required to
have correct pointer (or array) type. Since all invocations of the macro
already had this property and the emitted PNP data continues to include the
element size, there is no functional change.

Mostly done with the coccinelle 'spatch' tool:

$ cat modpnpsize0.cocci
@normaltables@
identifier b,c;
expression a,d,e;
declarer MODULE_PNP_INFO;
@@
MODULE_PNP_INFO(a,b,c,d,
-sizeof(d[0]),
e);

@singletons@
identifier b,c,d;
expression a;
declarer MODULE_PNP_INFO;
@@
MODULE_PNP_INFO(a,b,c,&d,
-sizeof(d),
1);

$ rg -l MODULE_PNP_INFO -- sys | \
xargs spatch --in-place --sp-file modpnpsize0.cocci

(Note that coccinelle invokes diff(1) via a PATH search and expects diff to
tolerate the -B flag, which BSD diff does not. So I had to link gdiff into
PATH as diff to use spatch.)

Tinderbox'd (-DMAKE_JUST_KERNELS).
Approved by: re (glen)

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Back out r338035 until Warner is finished churning GSoC PNP patches

I was not aware Warner was making or planning to make forward progress in
this area and have since been informed of that.

It's ea

Back out r338035 until Warner is finished churning GSoC PNP patches

I was not aware Warner was making or planning to make forward progress in
this area and have since been informed of that.

It's easy to apply/reapply when churn dies down.

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Remove unused and easy to misuse PNP macro parameter

Inspired by r338025, just remove the element size parameter to the
MODULE_PNP_INFO macro entirely. The 'table' parameter is now required to
have

Remove unused and easy to misuse PNP macro parameter

Inspired by r338025, just remove the element size parameter to the
MODULE_PNP_INFO macro entirely. The 'table' parameter is now required to
have correct pointer (or array) type. Since all invocations of the macro
already had this property and the emitted PNP data continues to include the
element size, there is no functional change.

Mostly done with the coccinelle 'spatch' tool:

$ cat modpnpsize0.cocci
@normaltables@
identifier b,c;
expression a,d,e;
declarer MODULE_PNP_INFO;
@@
MODULE_PNP_INFO(a,b,c,d,
-sizeof(d[0]),
e);

@singletons@
identifier b,c,d;
expression a;
declarer MODULE_PNP_INFO;
@@
MODULE_PNP_INFO(a,b,c,&d,
-sizeof(d),
1);

$ rg -l MODULE_PNP_INFO -- sys | \
xargs spatch --in-place --sp-file modpnpsize0.cocci

(Note that coccinelle invokes diff(1) via a PATH search and expects diff to
tolerate the -B flag, which BSD diff does not. So I had to link gdiff into
PATH as diff to use spatch.)

Tinderbox'd (-DMAKE_JUST_KERNELS).

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spi: Add SPIBUS_PNP_INFO macro

The PNP info string is the same as the SIMPLEBUS one but driver should
depend on spibus and not simplebus

[spigen] add initial spigen driver from green@

This is a simple ioctl and mmap API to issue SPI transactions from
userland. It's useful for simple devices (eg spi temperature sensors,
etc) for expe

[spigen] add initial spigen driver from green@

This is a simple ioctl and mmap API to issue SPI transactions from
userland. It's useful for simple devices (eg spi temperature sensors,
etc) for experimentation.

TODO:

* Write some documentation!

Submitted by: green

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Merge sync of head

Merge from head

Merge r278538 through r279514.

Merging ^/head r278916 through r279022.

MFH: r278593-r278966

Sponsored by: The FreeBSD Foundation

Add copyright statement I should have had on these files in 2006,
based on the spibus_if.m file.

MFC @ r241285

IFC @ r242684

Sync from head

Merge head r233826 through r240095.

Fetch the chip select in the bridge driver, like all the other spi
bridges do.