From: Titus Rwantare <titusr@google.com>
To: philmd@linaro.org, minyard@acm.org
Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org,
peter.maydell@linaro.org, Titus Rwantare <titusr@google.com>
Subject: [PATCH v3 0/5] PCA I2C GPIO expanders
Date: Mon, 20 Mar 2023 21:54:54 +0000 [thread overview]
Message-ID: <20230320215500.722960-1-titusr@google.com> (raw)
This patch series contains a set of i2c GPIO expanders,
with support for 4, 8, and 16 GPIO connections.
The devices are configured as GPIO inputs by default, but can have pins
configured to be inputs with qmp commands.
For example, the following snippet in a board file for a system,
configures a 16 bit pca6416 to have pins 8-11 as inputs, then asserts
them.
dev = DEVICE(i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 3), "pca6416", 0x72));
object_property_set_uint(OBJECT(dev), "gpio_config", 0x0F00, &error_abort);
object_property_set_uint(OBJECT(dev), "gpio_input", 0x0F00, &error_abort);
We currently use these to test hardware presence and LEDs in simulation.
Thanks
Since v2:
- switched to extract / deposit API
- added deposit16 to bitops.h
- squashed PCA9538 patch into PCA6416 to use the same send and recv
functions
- updated unit tests use asymmetric 16-bit test values
- add patch to imply I2C devices on NPCM7xx boards
Since v1:
- addressed comments
- fixed typos in commit messages
Titus Rwantare (5):
bitops.h: add deposit16 function
hw/gpio: add PCA953x i2c GPIO expanders
hw/gpio: add PCA9536 i2c gpio expander
hw/i2c: add canonical path to i2c event traces
hw/arm: imply I2C_DEVICES on NPCM7xx
hw/arm/Kconfig | 1 +
hw/gpio/Kconfig | 5 +
hw/gpio/meson.build | 1 +
hw/gpio/pca_i2c_gpio.c | 410 ++++++++++++++++++++++++++++++++
hw/gpio/trace-events | 5 +
hw/i2c/core.c | 8 +-
hw/i2c/trace-events | 2 +-
include/hw/gpio/pca_i2c_gpio.h | 69 ++++++
include/qemu/bitops.h | 26 ++
roms/edk2 | 2 +-
roms/openbios | 2 +-
roms/opensbi | 2 +-
roms/seabios | 2 +-
tests/qtest/meson.build | 1 +
tests/qtest/pca_i2c_gpio-test.c | 188 +++++++++++++++
15 files changed, 716 insertions(+), 8 deletions(-)
create mode 100644 hw/gpio/pca_i2c_gpio.c
create mode 100644 include/hw/gpio/pca_i2c_gpio.h
create mode 100644 tests/qtest/pca_i2c_gpio-test.c
--
2.40.0.rc1.284.g88254d51c5-goog
next reply other threads:[~2023-03-20 21:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 21:54 Titus Rwantare [this message]
2023-03-20 21:54 ` [PATCH v3 1/5] bitops.h: add deposit16 function Titus Rwantare
2023-03-20 21:54 ` [PATCH v3 2/5] hw/gpio: add PCA953x i2c GPIO expanders Titus Rwantare
2023-03-20 21:54 ` [PATCH v3 3/5] hw/gpio: add PCA9536 i2c gpio expander Titus Rwantare
2023-03-20 21:54 ` [PATCH v3 4/5] hw/i2c: add canonical path to i2c event traces Titus Rwantare
2023-03-20 21:54 ` [PATCH v3 5/5] hw/arm: imply I2C_DEVICES on NPCM7xx Titus Rwantare
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230320215500.722960-1-titusr@google.com \
--to=titusr@google.com \
--cc=minyard@acm.org \
--cc=peter.maydell@linaro.org \
--cc=philmd@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.