7536a398e9
.acpi_fill_ssdt() does not need to modify the device structure. This change makes the struct device * parameter to acpi_fill_ssdt() as const. Change-Id: I110f4c67c3b6671c9ac0a82e02609902a8ee5d5c Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40710 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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#include <arch/acpigen_dsm.h>
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#include <device/device.h>
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#include <stdint.h>
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#include <string.h>
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#include "chip.h"
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#include <gpio.h>
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#include <console/console.h>
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#if CONFIG(HAVE_ACPI_TABLES)
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static void i2c_hid_fill_dsm(const struct device *dev)
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{
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struct drivers_i2c_hid_config *config = dev->chip_info;
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struct dsm_i2c_hid_config dsm_config = {
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.hid_desc_reg_offset = config->hid_desc_reg_offset,
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};
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acpigen_write_dsm_i2c_hid(&dsm_config);
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}
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static void i2c_hid_fill_ssdt_generator(const struct device *dev)
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{
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struct drivers_i2c_hid_config *config = dev->chip_info;
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config->generic.cid = I2C_HID_CID;
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i2c_generic_fill_ssdt(dev, &i2c_hid_fill_dsm, &config->generic);
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}
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static const char *i2c_hid_acpi_name(const struct device *dev)
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{
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static char name[5];
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snprintf(name, sizeof(name), "H%03.3X", dev->path.i2c.device);
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name[4] = '\0';
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return name;
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}
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#endif
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static struct device_operations i2c_hid_ops = {
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.read_resources = noop_read_resources,
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.set_resources = noop_set_resources,
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#if CONFIG(HAVE_ACPI_TABLES)
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.acpi_name = i2c_hid_acpi_name,
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.acpi_fill_ssdt = i2c_hid_fill_ssdt_generator,
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#endif
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};
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static void i2c_hid_enable(struct device *dev)
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{
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struct drivers_i2c_hid_config *config = dev->chip_info;
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if (!config)
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return;
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/* Check if device is present by reading GPIO */
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if (config->generic.device_present_gpio) {
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int present = gpio_get(config->generic.device_present_gpio);
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present ^= config->generic.device_present_gpio_invert;
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printk(BIOS_INFO, "%s is %spresent\n",
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dev->chip_ops->name, present ? "" : "not ");
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if (!present) {
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dev->enabled = 0;
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return;
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}
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}
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dev->ops = &i2c_hid_ops;
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if (config && config->generic.desc) {
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dev->name = config->generic.desc;
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}
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}
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struct chip_operations drivers_i2c_hid_ops = {
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CHIP_NAME("I2C HID Device")
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.enable_dev = i2c_hid_enable
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};
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