Commit Graph

14 Commits

Author SHA1 Message Date
Dawid Niedzwiecki d1948dc164 emul: espi: Add support for eSPI emulators
Add an emulation controller which routes eSPI traffic to attached
emulators depending on the selected chip(mostly host).
This allows drivers for eSPI peripherals to be tested on systems
that don't have that peripheral attached, with the emulator handling
the eSPI traffic.

Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
2021-01-20 17:49:19 -05:00
Mulin Chao fa7843d12c driver: espi: add notification and opcodes for ec host command support.
This CL add a new notification event, ESPI_PERIPHERAL_EC_HOST_CMD, and
two response opcodes, ECUSTOM_HOST_CMD_GET_PARAM_MEMORY and
ECUSTOM_HOST_CMD_SEND_RESULT, to connect with host command sub-system
between host and ec.

It also introduced three configurations to increase the flexibility of
ec host command settings:
1. ESPI_PERIPHERAL_HOST_CMD_DATA_PORT_NUM:
   Host I/O peripheral port number for ec host command data. The default
   value is 0x0200.
2. ESPI_PERIPHERAL_HOST_CMD_PARAM_PORT_NUM:
   Host I/O peripheral port number for ec host command parameters. The
   default value is 0x0800.

3. ESPI_NPCX_PERIPHERAL_HOST_CMD_PARAM_SIZE:
   Host I/O peripheral port size for ec host command in npcx series. The
   valid value in npcx ec series for this option is
   8/16/32/64/128/256/512/1024/2048/4096 bytes. The default value is 256
   bytes.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
2020-12-20 13:05:50 -05:00
Mulin Chao 988a7a4826 driver: espi: add acpi and customized op codes for lpc r/w request func.
This CL introduces two kinds of op codes for espi_api_lpc_read_request
and espi_api_lpc_write_request Zephyr espi api functions.

One is for supporting ACPI and shared memory region to access ACPI data.
The other is customized for certain platforms such as Chromebook and so
on.

This CL also introduced the following configurations to add the
flexibility of these settings.

1. ESPI_PERIPHERAL_ACPI_SHM_REGION_PORT_NUM:
   Host I/O peripheral port number for shared memory region. The default
   value is default 0x0900

2. ESPI_NPCX_PERIPHERAL_ACPI_SHD_MEM_SIZE:
   Host I/O peripheral port size for shared memory in npcx series.
   Please notice the valid value in npcx ec series for this option is
   8/16/32/64/128/256/512/1024/2048/4096 bytes. The default value is 256
   bytes.

This CL also turn off hardware-wire feature which generates VW events
that connected to hardware signals such as SMI and SCI. We will set
VW output events directly via espi_api_send_vwire() api function.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
2020-12-20 13:05:50 -05:00
Mulin Chao e42a3a5a96 drivers: espi: add host sub-modules support for NPCX7 series.
This CL contains the drivers of NPCX Host Sub-Modules that serve as an
interface between the Host and Core domains. For most of them, the Host
can configure these modules via eSPI(Peripheral Channel)/LPC by
accessing 'Configuration and Control register Set' which IO base address
is 0x4E as default. And the interrupts in core domain help handling any
events from host side.

In this commit, we introduced six host sub-modules. It includes:
 1. Keyboard and Mouse Controller (KBC) interface.
 2. Power Management (PM) channels.
 3. Shared Memory mechanism (SHM).
 4. Core Access to Host Modules (C2H).
 5. Mobile System Wake-Up functions (MSWC).
 6. Serial Port (Legacy UART)

The tasks in application layer such as 8042, ACPI and host command can
cooperation with this driver by connecting api or callback functions.

Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
2020-10-02 11:33:15 +02:00
Mulin Chao be217e4a3a drivers: eSPI: add eSPI driver support for NPCX7 series.
In npcx7 series, all of them support the Intel Enhanced Serial
Peripheral Interface (eSPI) Revision 1.0. This specification provides a
path for migrating host sub-devices via LPC to a lower pin count, higher
bandwidth bus. In addition to Host communication via the peripheral
channel, it provides virtual wires support, out-of-band communication,
and device mastering option over the Chipset SPI flash.

Becisdes introducing eSPI device in npcx7, this CL also includes:

1. Add eSPI device tree declarations.
2. Add npcx7-espi-vws-map.dtsi to present the relationship between eSPI
   Virtual-Wire signals, eSPI registers, and wake-up input sources.
3. Zephyr eSPI api implementation.
4, Add OOB (Out of Band tunneled SMBus) support.
5. Add configuration files for eSPI test suites.

Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
2020-10-02 11:33:15 +02:00
Jose Alberto Meza 01ddb4787d drivers: espi: xec: support for eSPI slaves with long initializations
Add Kconfig switch to disable automatic eSPI slave boot acknowledge.
This allows to perform lenghty operations before continue any eSPI
handshake with eSPI master.

Required for eSPI SAF boot configuration.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-08-30 08:22:11 -04:00
Rajavardhan Gundi e71e803674 drivers: espi: Add support for ACPI_EC1 interface
This enables the ACPI_EC1 interface which is typically accessed
through ports 0x6A0 and 0x6A4 in Bios.

Signed-off-by: Rajavardhan Gundi <rajavardhan.gundi@intel.com>
2020-06-25 17:05:43 -04:00
Ulf Magnusson eddd98f811 kconfig: Replace some single-symbol 'if's with 'depends on'
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.

There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.

The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).

Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.

Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.

Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.

The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.

(Everything above is true for choices, menus, and comments as well.)

Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 08:32:42 -05:00
Jose Alberto Meza 77b7b42f1d drivers: espi: xec: Allow to intercept eSPI host suspend/reset warnings
Fix #22188
Introduce config option to disable automatic acknowledge via
virtual wires on response to eSPI host suspend and reset warnings.
This will give the opportunity for eSPI slave systems that need to
perform preparations before reset or suspend.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-01-28 20:13:36 +02:00
Jose Alberto Meza 35c28a3dbf drivers: espi: xec: Use DT IRQ priority values
Use  DT define IRQ priorities instead KConfig.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-01-28 20:13:36 +02:00
Francisco Munoz 4538ddaea3 drivers: espi: Kconfig cosmetic changes
Several cosmetic changes applied to the Kconfig for ESPI driver

Signed-off-by: Francisco Munoz <francisco.munoz.ruiz@intel.com>
2019-11-20 15:02:08 -05:00
Ulf Magnusson bd6e04411e kconfig: Clean up header comments and make them consistent
Use this short header style in all Kconfig files:

    # <description>

    # <copyright>
    # <license>

    ...

Also change all <description>s from

    # Kconfig[.extension] - Foo-related options

to just

    # Foo-related options

It's clear enough that it's about Kconfig.

The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)

    git ls-files '*Kconfig*' | \
        xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-04 17:31:27 -05:00
Ulf Magnusson a9490541d6 drivers: espi: kconfig: Remove redundant ESPI_PERIPHERAL_CHANNEL deps.
The ESPI_PERIPHERAL_* symbols are surrounded by an
'if ESPI_PERIPHERAL_CHANNEL' in the same file, so no
need to put 'depends on ESPI_PERIPHERAL' on them.

'if' is just a shorthand for 'depends on'.

Also remove a redundant 'if ESPI' from ESPI_XEC.
drivers/espi/Kconfig.xec is sourced within an 'if ESPI' in
drivers/espi/Kconfig.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-08-07 04:27:03 -04:00
Jose Alberto Meza a7e44ebf44 drivers: espi: Add Kconfig for eSPI driver
Adds the Kconfig for generic eSPI drivers

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2019-07-25 08:23:38 -07:00