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cros_ec: Move cros_ec_dev module to drivers/mfd
The cros_ec_dev module is responsible for registering the MFD devices attached to the ChromeOS EC. This patch moves this module to drivers/mfd so calls to mfd_add_devices() are not done from outside the MFD subtree anymore. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Thierry Escande
Lee Jones
parent
ea01a31b90
commit
5e0115581b
11 changed files with 15 additions and 46 deletions
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@ -222,6 +222,16 @@ config MFD_CROS_EC_SPI
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response time cannot be guaranteed, we support ignoring
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'pre-amble' bytes before the response actually starts.
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config MFD_CROS_EC_CHARDEV
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tristate "Chrome OS Embedded Controller userspace device interface"
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depends on MFD_CROS_EC
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select CROS_EC_CTL
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---help---
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This driver adds support to talk with the ChromeOS EC from userspace.
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If you have a supported Chromebook, choose Y or M here.
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The module will be called cros_ec_dev.
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config MFD_ASIC3
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bool "Compaq ASIC3"
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depends on GPIOLIB && ARM
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@ -17,6 +17,7 @@ cros_ec_core-$(CONFIG_ACPI) += cros_ec_acpi_gpe.o
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obj-$(CONFIG_MFD_CROS_EC) += cros_ec_core.o
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obj-$(CONFIG_MFD_CROS_EC_I2C) += cros_ec_i2c.o
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obj-$(CONFIG_MFD_CROS_EC_SPI) += cros_ec_spi.o
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obj-$(CONFIG_MFD_CROS_EC_CHARDEV) += cros_ec_dev.o
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obj-$(CONFIG_MFD_EXYNOS_LPASS) += exynos-lpass.o
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rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o
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552
drivers/mfd/cros_ec_dev.c
Normal file
552
drivers/mfd/cros_ec_dev.c
Normal file
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@ -0,0 +1,552 @@
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/*
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* cros_ec_dev - expose the Chrome OS Embedded Controller to user-space
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*
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* Copyright (C) 2014 Google, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/fs.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/pm.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include "cros_ec_dev.h"
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#define DRV_NAME "cros-ec-dev"
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/* Device variables */
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#define CROS_MAX_DEV 128
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static int ec_major;
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static const struct attribute_group *cros_ec_groups[] = {
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&cros_ec_attr_group,
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&cros_ec_lightbar_attr_group,
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&cros_ec_vbc_attr_group,
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NULL,
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};
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static struct class cros_class = {
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.owner = THIS_MODULE,
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.name = "chromeos",
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.dev_groups = cros_ec_groups,
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};
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/* Basic communication */
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static int ec_get_version(struct cros_ec_dev *ec, char *str, int maxlen)
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{
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struct ec_response_get_version *resp;
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static const char * const current_image_name[] = {
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"unknown", "read-only", "read-write", "invalid",
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};
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struct cros_ec_command *msg;
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int ret;
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msg = kmalloc(sizeof(*msg) + sizeof(*resp), GFP_KERNEL);
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if (!msg)
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return -ENOMEM;
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msg->version = 0;
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msg->command = EC_CMD_GET_VERSION + ec->cmd_offset;
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msg->insize = sizeof(*resp);
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msg->outsize = 0;
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ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
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if (ret < 0)
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goto exit;
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if (msg->result != EC_RES_SUCCESS) {
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snprintf(str, maxlen,
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"%s\nUnknown EC version: EC returned %d\n",
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CROS_EC_DEV_VERSION, msg->result);
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ret = -EINVAL;
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goto exit;
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}
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resp = (struct ec_response_get_version *)msg->data;
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if (resp->current_image >= ARRAY_SIZE(current_image_name))
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resp->current_image = 3; /* invalid */
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snprintf(str, maxlen, "%s\n%s\n%s\n%s\n", CROS_EC_DEV_VERSION,
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resp->version_string_ro, resp->version_string_rw,
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current_image_name[resp->current_image]);
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ret = 0;
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exit:
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kfree(msg);
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return ret;
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}
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static int cros_ec_check_features(struct cros_ec_dev *ec, int feature)
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{
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struct cros_ec_command *msg;
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int ret;
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if (ec->features[0] == -1U && ec->features[1] == -1U) {
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/* features bitmap not read yet */
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msg = kmalloc(sizeof(*msg) + sizeof(ec->features), GFP_KERNEL);
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if (!msg)
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return -ENOMEM;
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msg->version = 0;
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msg->command = EC_CMD_GET_FEATURES + ec->cmd_offset;
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msg->insize = sizeof(ec->features);
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msg->outsize = 0;
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ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
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if (ret < 0 || msg->result != EC_RES_SUCCESS) {
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dev_warn(ec->dev, "cannot get EC features: %d/%d\n",
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ret, msg->result);
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memset(ec->features, 0, sizeof(ec->features));
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}
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memcpy(ec->features, msg->data, sizeof(ec->features));
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dev_dbg(ec->dev, "EC features %08x %08x\n",
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ec->features[0], ec->features[1]);
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kfree(msg);
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}
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return ec->features[feature / 32] & EC_FEATURE_MASK_0(feature);
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}
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/* Device file ops */
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static int ec_device_open(struct inode *inode, struct file *filp)
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{
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struct cros_ec_dev *ec = container_of(inode->i_cdev,
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struct cros_ec_dev, cdev);
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filp->private_data = ec;
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nonseekable_open(inode, filp);
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return 0;
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}
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static int ec_device_release(struct inode *inode, struct file *filp)
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{
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return 0;
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}
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static ssize_t ec_device_read(struct file *filp, char __user *buffer,
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size_t length, loff_t *offset)
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{
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struct cros_ec_dev *ec = filp->private_data;
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char msg[sizeof(struct ec_response_get_version) +
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sizeof(CROS_EC_DEV_VERSION)];
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size_t count;
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int ret;
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if (*offset != 0)
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return 0;
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ret = ec_get_version(ec, msg, sizeof(msg));
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if (ret)
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return ret;
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count = min(length, strlen(msg));
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if (copy_to_user(buffer, msg, count))
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return -EFAULT;
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*offset = count;
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return count;
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}
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/* Ioctls */
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static long ec_device_ioctl_xcmd(struct cros_ec_dev *ec, void __user *arg)
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{
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long ret;
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struct cros_ec_command u_cmd;
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struct cros_ec_command *s_cmd;
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if (copy_from_user(&u_cmd, arg, sizeof(u_cmd)))
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return -EFAULT;
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if ((u_cmd.outsize > EC_MAX_MSG_BYTES) ||
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(u_cmd.insize > EC_MAX_MSG_BYTES))
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return -EINVAL;
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s_cmd = kmalloc(sizeof(*s_cmd) + max(u_cmd.outsize, u_cmd.insize),
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GFP_KERNEL);
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if (!s_cmd)
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return -ENOMEM;
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if (copy_from_user(s_cmd, arg, sizeof(*s_cmd) + u_cmd.outsize)) {
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ret = -EFAULT;
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goto exit;
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}
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if (u_cmd.outsize != s_cmd->outsize ||
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u_cmd.insize != s_cmd->insize) {
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ret = -EINVAL;
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goto exit;
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}
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s_cmd->command += ec->cmd_offset;
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ret = cros_ec_cmd_xfer(ec->ec_dev, s_cmd);
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/* Only copy data to userland if data was received. */
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if (ret < 0)
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goto exit;
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if (copy_to_user(arg, s_cmd, sizeof(*s_cmd) + s_cmd->insize))
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ret = -EFAULT;
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exit:
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kfree(s_cmd);
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return ret;
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}
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static long ec_device_ioctl_readmem(struct cros_ec_dev *ec, void __user *arg)
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{
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struct cros_ec_device *ec_dev = ec->ec_dev;
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struct cros_ec_readmem s_mem = { };
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long num;
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/* Not every platform supports direct reads */
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if (!ec_dev->cmd_readmem)
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return -ENOTTY;
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if (copy_from_user(&s_mem, arg, sizeof(s_mem)))
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return -EFAULT;
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num = ec_dev->cmd_readmem(ec_dev, s_mem.offset, s_mem.bytes,
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s_mem.buffer);
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if (num <= 0)
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return num;
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if (copy_to_user((void __user *)arg, &s_mem, sizeof(s_mem)))
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return -EFAULT;
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return 0;
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}
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static long ec_device_ioctl(struct file *filp, unsigned int cmd,
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unsigned long arg)
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{
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struct cros_ec_dev *ec = filp->private_data;
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if (_IOC_TYPE(cmd) != CROS_EC_DEV_IOC)
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return -ENOTTY;
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switch (cmd) {
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case CROS_EC_DEV_IOCXCMD:
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return ec_device_ioctl_xcmd(ec, (void __user *)arg);
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case CROS_EC_DEV_IOCRDMEM:
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return ec_device_ioctl_readmem(ec, (void __user *)arg);
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}
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return -ENOTTY;
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}
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/* Module initialization */
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static const struct file_operations fops = {
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.open = ec_device_open,
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.release = ec_device_release,
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.read = ec_device_read,
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.unlocked_ioctl = ec_device_ioctl,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = ec_device_ioctl,
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#endif
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};
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static void __remove(struct device *dev)
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{
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struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev,
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class_dev);
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kfree(ec);
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}
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static void cros_ec_sensors_register(struct cros_ec_dev *ec)
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{
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/*
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* Issue a command to get the number of sensor reported.
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* Build an array of sensors driver and register them all.
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*/
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int ret, i, id, sensor_num;
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struct mfd_cell *sensor_cells;
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struct cros_ec_sensor_platform *sensor_platforms;
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int sensor_type[MOTIONSENSE_TYPE_MAX];
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struct ec_params_motion_sense *params;
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struct ec_response_motion_sense *resp;
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struct cros_ec_command *msg;
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msg = kzalloc(sizeof(struct cros_ec_command) +
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max(sizeof(*params), sizeof(*resp)), GFP_KERNEL);
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if (msg == NULL)
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return;
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msg->version = 2;
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msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset;
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msg->outsize = sizeof(*params);
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msg->insize = sizeof(*resp);
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params = (struct ec_params_motion_sense *)msg->data;
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params->cmd = MOTIONSENSE_CMD_DUMP;
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ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
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if (ret < 0 || msg->result != EC_RES_SUCCESS) {
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dev_warn(ec->dev, "cannot get EC sensor information: %d/%d\n",
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ret, msg->result);
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goto error;
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}
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resp = (struct ec_response_motion_sense *)msg->data;
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sensor_num = resp->dump.sensor_count;
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/* Allocate 2 extra sensors in case lid angle or FIFO are needed */
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sensor_cells = kzalloc(sizeof(struct mfd_cell) * (sensor_num + 2),
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GFP_KERNEL);
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if (sensor_cells == NULL)
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goto error;
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sensor_platforms = kzalloc(sizeof(struct cros_ec_sensor_platform) *
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(sensor_num + 1), GFP_KERNEL);
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if (sensor_platforms == NULL)
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goto error_platforms;
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memset(sensor_type, 0, sizeof(sensor_type));
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id = 0;
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for (i = 0; i < sensor_num; i++) {
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params->cmd = MOTIONSENSE_CMD_INFO;
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params->info.sensor_num = i;
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ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
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if (ret < 0 || msg->result != EC_RES_SUCCESS) {
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dev_warn(ec->dev, "no info for EC sensor %d : %d/%d\n",
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i, ret, msg->result);
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continue;
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}
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switch (resp->info.type) {
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case MOTIONSENSE_TYPE_ACCEL:
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sensor_cells[id].name = "cros-ec-accel";
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break;
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case MOTIONSENSE_TYPE_BARO:
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sensor_cells[id].name = "cros-ec-baro";
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break;
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case MOTIONSENSE_TYPE_GYRO:
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sensor_cells[id].name = "cros-ec-gyro";
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break;
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case MOTIONSENSE_TYPE_MAG:
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sensor_cells[id].name = "cros-ec-mag";
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break;
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case MOTIONSENSE_TYPE_PROX:
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sensor_cells[id].name = "cros-ec-prox";
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break;
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case MOTIONSENSE_TYPE_LIGHT:
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sensor_cells[id].name = "cros-ec-light";
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break;
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case MOTIONSENSE_TYPE_ACTIVITY:
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sensor_cells[id].name = "cros-ec-activity";
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break;
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default:
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dev_warn(ec->dev, "unknown type %d\n", resp->info.type);
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continue;
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}
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sensor_platforms[id].sensor_num = i;
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sensor_cells[id].id = sensor_type[resp->info.type];
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sensor_cells[id].platform_data = &sensor_platforms[id];
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sensor_cells[id].pdata_size =
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sizeof(struct cros_ec_sensor_platform);
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sensor_type[resp->info.type]++;
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id++;
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}
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if (sensor_type[MOTIONSENSE_TYPE_ACCEL] >= 2) {
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sensor_platforms[id].sensor_num = sensor_num;
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sensor_cells[id].name = "cros-ec-angle";
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sensor_cells[id].id = 0;
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sensor_cells[id].platform_data = &sensor_platforms[id];
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sensor_cells[id].pdata_size =
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sizeof(struct cros_ec_sensor_platform);
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id++;
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}
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if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO)) {
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sensor_cells[id].name = "cros-ec-ring";
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id++;
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}
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ret = mfd_add_devices(ec->dev, 0, sensor_cells, id,
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NULL, 0, NULL);
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if (ret)
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dev_err(ec->dev, "failed to add EC sensors\n");
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kfree(sensor_platforms);
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error_platforms:
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kfree(sensor_cells);
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error:
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kfree(msg);
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}
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static int ec_device_probe(struct platform_device *pdev)
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{
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int retval = -ENOMEM;
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struct device *dev = &pdev->dev;
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struct cros_ec_platform *ec_platform = dev_get_platdata(dev);
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struct cros_ec_dev *ec = kzalloc(sizeof(*ec), GFP_KERNEL);
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if (!ec)
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return retval;
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dev_set_drvdata(dev, ec);
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ec->ec_dev = dev_get_drvdata(dev->parent);
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ec->dev = dev;
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ec->cmd_offset = ec_platform->cmd_offset;
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ec->features[0] = -1U; /* Not cached yet */
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ec->features[1] = -1U; /* Not cached yet */
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device_initialize(&ec->class_dev);
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cdev_init(&ec->cdev, &fops);
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/*
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* Add the class device
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* Link to the character device for creating the /dev entry
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* in devtmpfs.
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*/
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ec->class_dev.devt = MKDEV(ec_major, pdev->id);
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ec->class_dev.class = &cros_class;
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ec->class_dev.parent = dev;
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ec->class_dev.release = __remove;
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retval = dev_set_name(&ec->class_dev, "%s", ec_platform->ec_name);
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if (retval) {
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dev_err(dev, "dev_set_name failed => %d\n", retval);
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goto failed;
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}
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retval = cdev_device_add(&ec->cdev, &ec->class_dev);
|
||||
if (retval) {
|
||||
dev_err(dev, "cdev_device_add failed => %d\n", retval);
|
||||
goto failed;
|
||||
}
|
||||
|
||||
if (cros_ec_debugfs_init(ec))
|
||||
dev_warn(dev, "failed to create debugfs directory\n");
|
||||
|
||||
/* check whether this EC is a sensor hub. */
|
||||
if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))
|
||||
cros_ec_sensors_register(ec);
|
||||
|
||||
/* Take control of the lightbar from the EC. */
|
||||
lb_manual_suspend_ctrl(ec, 1);
|
||||
|
||||
return 0;
|
||||
|
||||
failed:
|
||||
put_device(&ec->class_dev);
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int ec_device_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev);
|
||||
|
||||
/* Let the EC take over the lightbar again. */
|
||||
lb_manual_suspend_ctrl(ec, 0);
|
||||
|
||||
cros_ec_debugfs_remove(ec);
|
||||
|
||||
cdev_del(&ec->cdev);
|
||||
device_unregister(&ec->class_dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct platform_device_id cros_ec_id[] = {
|
||||
{ DRV_NAME, 0 },
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, cros_ec_id);
|
||||
|
||||
static __maybe_unused int ec_device_suspend(struct device *dev)
|
||||
{
|
||||
struct cros_ec_dev *ec = dev_get_drvdata(dev);
|
||||
|
||||
lb_suspend(ec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static __maybe_unused int ec_device_resume(struct device *dev)
|
||||
{
|
||||
struct cros_ec_dev *ec = dev_get_drvdata(dev);
|
||||
|
||||
lb_resume(ec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops cros_ec_dev_pm_ops = {
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
.suspend = ec_device_suspend,
|
||||
.resume = ec_device_resume,
|
||||
#endif
|
||||
};
|
||||
|
||||
static struct platform_driver cros_ec_dev_driver = {
|
||||
.driver = {
|
||||
.name = DRV_NAME,
|
||||
.pm = &cros_ec_dev_pm_ops,
|
||||
},
|
||||
.probe = ec_device_probe,
|
||||
.remove = ec_device_remove,
|
||||
};
|
||||
|
||||
static int __init cros_ec_dev_init(void)
|
||||
{
|
||||
int ret;
|
||||
dev_t dev = 0;
|
||||
|
||||
ret = class_register(&cros_class);
|
||||
if (ret) {
|
||||
pr_err(CROS_EC_DEV_NAME ": failed to register device class\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Get a range of minor numbers (starting with 0) to work with */
|
||||
ret = alloc_chrdev_region(&dev, 0, CROS_MAX_DEV, CROS_EC_DEV_NAME);
|
||||
if (ret < 0) {
|
||||
pr_err(CROS_EC_DEV_NAME ": alloc_chrdev_region() failed\n");
|
||||
goto failed_chrdevreg;
|
||||
}
|
||||
ec_major = MAJOR(dev);
|
||||
|
||||
/* Register the driver */
|
||||
ret = platform_driver_register(&cros_ec_dev_driver);
|
||||
if (ret < 0) {
|
||||
pr_warn(CROS_EC_DEV_NAME ": can't register driver: %d\n", ret);
|
||||
goto failed_devreg;
|
||||
}
|
||||
return 0;
|
||||
|
||||
failed_devreg:
|
||||
unregister_chrdev_region(MKDEV(ec_major, 0), CROS_MAX_DEV);
|
||||
failed_chrdevreg:
|
||||
class_unregister(&cros_class);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void __exit cros_ec_dev_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&cros_ec_dev_driver);
|
||||
unregister_chrdev(ec_major, CROS_EC_DEV_NAME);
|
||||
class_unregister(&cros_class);
|
||||
}
|
||||
|
||||
module_init(cros_ec_dev_init);
|
||||
module_exit(cros_ec_dev_exit);
|
||||
|
||||
MODULE_ALIAS("platform:" DRV_NAME);
|
||||
MODULE_AUTHOR("Bill Richardson <wfrichar@chromium.org>");
|
||||
MODULE_DESCRIPTION("Userspace interface to the Chrome OS Embedded Controller");
|
||||
MODULE_VERSION("1.0");
|
||||
MODULE_LICENSE("GPL");
|
||||
52
drivers/mfd/cros_ec_dev.h
Normal file
52
drivers/mfd/cros_ec_dev.h
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* cros_ec_dev - expose the Chrome OS Embedded Controller to userspace
|
||||
*
|
||||
* Copyright (C) 2014 Google, Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef _CROS_EC_DEV_H_
|
||||
#define _CROS_EC_DEV_H_
|
||||
|
||||
#include <linux/ioctl.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/mfd/cros_ec.h>
|
||||
|
||||
#define CROS_EC_DEV_VERSION "1.0.0"
|
||||
|
||||
/*
|
||||
* @offset: within EC_LPC_ADDR_MEMMAP region
|
||||
* @bytes: number of bytes to read. zero means "read a string" (including '\0')
|
||||
* (at most only EC_MEMMAP_SIZE bytes can be read)
|
||||
* @buffer: where to store the result
|
||||
* ioctl returns the number of bytes read, negative on error
|
||||
*/
|
||||
struct cros_ec_readmem {
|
||||
uint32_t offset;
|
||||
uint32_t bytes;
|
||||
uint8_t buffer[EC_MEMMAP_SIZE];
|
||||
};
|
||||
|
||||
#define CROS_EC_DEV_IOC 0xEC
|
||||
#define CROS_EC_DEV_IOCXCMD _IOWR(CROS_EC_DEV_IOC, 0, struct cros_ec_command)
|
||||
#define CROS_EC_DEV_IOCRDMEM _IOWR(CROS_EC_DEV_IOC, 1, struct cros_ec_readmem)
|
||||
|
||||
/* Lightbar utilities */
|
||||
extern bool ec_has_lightbar(struct cros_ec_dev *ec);
|
||||
extern int lb_manual_suspend_ctrl(struct cros_ec_dev *ec, uint8_t enable);
|
||||
extern int lb_suspend(struct cros_ec_dev *ec);
|
||||
extern int lb_resume(struct cros_ec_dev *ec);
|
||||
|
||||
#endif /* _CROS_EC_DEV_H_ */
|
||||
|
|
@ -38,16 +38,6 @@ config CHROMEOS_PSTORE
|
|||
If you have a supported Chromebook, choose Y or M here.
|
||||
The module will be called chromeos_pstore.
|
||||
|
||||
config CROS_EC_CHARDEV
|
||||
tristate "Chrome OS Embedded Controller userspace device interface"
|
||||
depends on MFD_CROS_EC
|
||||
select CROS_EC_CTL
|
||||
---help---
|
||||
This driver adds support to talk with the ChromeOS EC from userspace.
|
||||
|
||||
If you have a supported Chromebook, choose Y or M here.
|
||||
The module will be called cros_ec_dev.
|
||||
|
||||
config CROS_EC_CTL
|
||||
tristate
|
||||
|
||||
|
|
|
|||
|
|
@ -5,7 +5,6 @@ obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o
|
|||
cros_ec_ctl-objs := cros_ec_sysfs.o cros_ec_lightbar.o \
|
||||
cros_ec_vbc.o cros_ec_debugfs.o
|
||||
obj-$(CONFIG_CROS_EC_CTL) += cros_ec_ctl.o
|
||||
obj-$(CONFIG_CROS_EC_CHARDEV) += cros_ec_dev.o
|
||||
cros_ec_lpcs-objs := cros_ec_lpc.o cros_ec_lpc_reg.o
|
||||
cros_ec_lpcs-$(CONFIG_CROS_EC_LPC_MEC) += cros_ec_lpc_mec.o
|
||||
obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpcs.o
|
||||
|
|
|
|||
|
|
@ -29,9 +29,6 @@
|
|||
#include <linux/slab.h>
|
||||
#include <linux/wait.h>
|
||||
|
||||
#include "cros_ec_dev.h"
|
||||
#include "cros_ec_debugfs.h"
|
||||
|
||||
#define LOG_SHIFT 14
|
||||
#define LOG_SIZE (1 << LOG_SHIFT)
|
||||
#define LOG_POLL_SEC 10
|
||||
|
|
|
|||
|
|
@ -1,27 +0,0 @@
|
|||
/*
|
||||
* Copyright 2015 Google, Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef _DRV_CROS_EC_DEBUGFS_H_
|
||||
#define _DRV_CROS_EC_DEBUGFS_H_
|
||||
|
||||
#include "cros_ec_dev.h"
|
||||
|
||||
/* debugfs stuff */
|
||||
int cros_ec_debugfs_init(struct cros_ec_dev *ec);
|
||||
void cros_ec_debugfs_remove(struct cros_ec_dev *ec);
|
||||
|
||||
#endif /* _DRV_CROS_EC_DEBUGFS_H_ */
|
||||
|
|
@ -33,8 +33,6 @@
|
|||
#include <linux/uaccess.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include "cros_ec_dev.h"
|
||||
|
||||
/* Rate-limit the lightbar interface to prevent DoS. */
|
||||
static unsigned long lb_interval_jiffies = 50 * HZ / 1000;
|
||||
|
||||
|
|
|
|||
|
|
@ -34,8 +34,6 @@
|
|||
#include <linux/types.h>
|
||||
#include <linux/uaccess.h>
|
||||
|
||||
#include "cros_ec_dev.h"
|
||||
|
||||
/* Accessor functions */
|
||||
|
||||
static ssize_t show_ec_reboot(struct device *dev,
|
||||
|
|
|
|||
|
|
@ -322,6 +322,10 @@ extern struct attribute_group cros_ec_attr_group;
|
|||
extern struct attribute_group cros_ec_lightbar_attr_group;
|
||||
extern struct attribute_group cros_ec_vbc_attr_group;
|
||||
|
||||
/* debugfs stuff */
|
||||
int cros_ec_debugfs_init(struct cros_ec_dev *ec);
|
||||
void cros_ec_debugfs_remove(struct cros_ec_dev *ec);
|
||||
|
||||
/* ACPI GPE handler */
|
||||
#ifdef CONFIG_ACPI
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue