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2024-01-31device/device.h: Rename busses for clarityArthur Heymans
This renames bus to upstream and link_list to downstream. Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420 Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2023-12-20device/i2c_bus.c: Check pointer for NULL before using itMartin Roth
Found-by: Coverity Scan #1489753 Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I4f3794cf17875cdb35010c79a6537a4c13a18224 Reviewed-on: https://review.coreboot.org/c/coreboot/+/78615 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
2022-10-26src/device: Clean up includesElyes Haouas
Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: Idd78271f2158bdc29ce9ac8d81f46ad8cbe84c5e Reviewed-on: https://review.coreboot.org/c/coreboot/+/68205 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
2022-09-04device/i2c_bus: Add routines to read and write multiple bytesWerner Zeh
Some devices require that several bytes are written with a single I2C write command. Extend the i2c_bus interface functions and add both, read and write for more than one byte at a defined byte offset. Change-Id: I0eec2e1d4185170f02b4ab35aa6546dc69569303 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/67098 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
2022-08-03dev/i2c_bus: Fix `count` argument in i2c_dev_detect()Nico Huber
We actually want the bus driver to process the 1 zero-length write we are passing. So set the count to 1. Change-Id: I5a41abb68c27a83715b6baec91ece9fa90b66a8c Signed-off-by: Nico Huber <nico.h@gmx.de> Tested-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66337 Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Crawford <tcrawford@system76.com>
2022-06-21device/i2c_bus: Add missing trailing newline to console outputMatt DeVillier
Improves readability in console log. Change-Id: Ied0cbb746ff3ca6250ed9322dfb2726da0949e16 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/65230 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
2022-06-21device/i2c_bus: Check for self loop in bus linkMatt DeVillier
When trying to find the parent i2c bus of a given device, ensure that the bus link doesn't point to itself, else we'll get stuck in an infinite loop. Change-Id: I56cb6b2a3e4f98d2ce3ef2d8298e74d52661331c Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/65229 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2022-05-31dev/i2c_bus: Add declaration, implementation of i2c_dev_detect()Matt DeVillier
This patch adds the I2C equivalent of an SMBus quick write to an I2C device, which is used by some I2C drivers as a way to probe the existence (or absence) of a certain device on the bus, based on whether or not a 0-byte write to an I2C address is ACKed or NACKed. i2c_dev_detect() is implemented using the existing i2c bus ops transfer() function, so no further work is needed for existing controller drivers to utilize this functionality. Change-Id: I9b22bdc0343c846b235339f85d9f70b20f0f2bdd Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64537 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-04-01device/i2c_bus: Constify i2c_busdev and i2c_linkMatt DeVillier
Change-Id: If795087ecdaea24ad7834dcc6d5bf6a72f2aea8f Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63208 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-04-06device/i2c_bus.c: Correct code styleFrans Hendriks
device: Correct code style Revise the following aspects to follow coreboot's coding style: - Drop braces for single-statement condition. - Remove unnecessary newlines. BUG = N/A TEST = Build Compulab Intense-PC with secure oprom enabled Change-Id: I78ce97b0ce1587119a71893c867c2dd062552a31 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50190 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
2021-02-05device: correct code styleFrans Hendriks
Revise the following aspects to follow coreboot's coding style: - Drop braces for single-statement condition and loop bodies. - Use `__func__` to print the current function's name. - Reflow pointer dereferences to fit in a single line. - Adjust the `*` position in pointer variable declarations. - Drop unnecessary `else` statements. BUG = N/A TEST = Build Compulab Intense-PC with secure oprom enabled Change-Id: I780251d946d5bea97658476d61d25555ec768dfc Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49963 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-04src/device: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: Id5fe26564147ec532850430ea55b19ee94d5c5a5 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40050 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-12-19src/{drivers,device,ec}: Remove unused <stdlib.h>Elyes HAOUAS
Change-Id: I05422ee4b0aa5c02525ef0b4eccb4dc3ecf871e8 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32822 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-30device/i2c_bus: Add i2c_dev_read_at16()Nico Huber
i2c_dev_read_at16() sends a 16-bit offset to the I2C chip (for larger EEPROM parts), then reads bytes up to a given length into a buffer. Change-Id: I7516f3e5d9aca362c2b340aa5627d91510c09412 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29478 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2018-01-24device/i2c_bus: allow i2c_bus and i2c_simple to coexistAaron Durbin
If one wants to implement both i2c_bus.h and i2c_simple.h APIs the compilation unit needs to be guarded or coordinated carefully with different compilation units. Instead, name the i2c_bus functions with _dev such that it indicates that they operate on struct device. One other change to allow i2c_bus.h to be built in non-ramstage environments is to ensure DEVTREE_CONST is used for the dev field in struct bus. BUG=b:72121803 Change-Id: I267e27e62c95013e8ff8b0728dbe9e7b523de453 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23370 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-08-18Reinvent I2C opsNico Huber
Do not use the global platform_i2c_transfer() function that can only be implemented by a single driver. Instead, make a `struct device` aware transfer() function the only interface function for I2C controller dri- vers to implement. To not force the slave device drivers to be implemented either above generic I2C or specialized SMBus operations, we support SMBus control- lers in the slave device interface too. We start with four simple slave functions: i2c_readb(), i2c_writeb(), i2c_readb_at() and i2c_writeb_at(). They are all compatible to respec- tive SMBus functions. But we keep aliases because it would be weird to force e.g. an I2C EEPROM driver to call smbus_read_byte(). Change-Id: I98386f91bf4799ba3df84ec8bc0f64edd4142818 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/20846 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 13:47:49 +0000