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Add basic driver structure for "new" clevo interface

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Christoffer Sandberg 2020-11-16 16:27:34 +01:00
parent 878a528223
commit fe41e0d039
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GPG key ID: BF563F71B6C7A96D
3 changed files with 86 additions and 1 deletions
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2
Makefile
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@ -16,7 +16,7 @@
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <https://www.gnu.org/licenses/>.
#
obj-m := ./src/tuxedo_keyboard.o
obj-m := ./src/tuxedo_keyboard.o ./src/clevo_acpi.o
PWD := $(shell pwd)
KDIR := /lib/modules/$(shell uname -r)/build

4
dkms.conf
View file

@ -5,6 +5,10 @@ DEST_MODULE_LOCATION[0]="/kernel/lib/"
BUILT_MODULE_NAME[0]="tuxedo_keyboard"
BUILT_MODULE_LOCATION[0]="src/"
DEST_MODULE_LOCATION[0]="/kernel/lib/"
BUILT_MODULE_NAME[0]="clevo_acpi"
BUILT_MODULE_LOCATION[0]="src/"
MAKE[0]="make KDIR=/lib/modules/${kernelver}/build"
CLEAN="make clean"
AUTOINSTALL="yes"

81
src/clevo_acpi.c Normal file
View file

@ -0,0 +1,81 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/acpi.h>
#define DRIVER_NAME "clevo_acpi"
#define CLEVO_ACPI_RESOURCE_HID "CLV0001"
struct clevo_acpi_driver_data_t {
struct acpi_device *device;
};
static int clevo_acpi_add(struct acpi_device *device)
{
struct clevo_acpi_driver_data_t *driver_data;
driver_data = devm_kzalloc(&device->dev, sizeof(*driver_data), GFP_KERNEL);
if (!driver_data)
return -ENOMEM;
driver_data->device = device;
pr_debug("acpi add");
return 0;
}
static int clevo_acpi_remove(struct acpi_device *device)
{
pr_debug("acpi remove");
return 0;
}
static void clevo_acpi_notify(struct acpi_device *device, u32 event)
{
pr_debug("event: %0#10x", event);
}
#ifdef CONFIG_PM
static int driver_suspend_callb(struct device *dev)
{
pr_debug("driver suspend\n");
return 0;
}
static int driver_resume_callb(struct device *dev)
{
pr_debug("driver resume\n");
return 0;
}
static SIMPLE_DEV_PM_OPS(clevo_driver_pm_ops, driver_suspend_callb, driver_resume_callb);
#endif
static const struct acpi_device_id clevo_acpi_device_ids[] = {
{CLEVO_ACPI_RESOURCE_HID, 0},
{"", 0}
};
static struct acpi_driver clevo_acpi_driver = {
.name = DRIVER_NAME,
.class = DRIVER_NAME,
.owner = THIS_MODULE,
.ids = clevo_acpi_device_ids,
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
.ops = {
.add = clevo_acpi_add,
.remove = clevo_acpi_remove,
.notify = clevo_acpi_notify,
},
#ifdef CONFIG_PM
.drv.pm = &clevo_driver_pm_ops
#endif
};
module_acpi_driver(clevo_acpi_driver);
MODULE_AUTHOR("TUXEDO Computers GmbH <tux@tuxedocomputers.com>");
MODULE_DESCRIPTION("Driver for Clevo ACPI interface");
MODULE_VERSION("0.0.1");
MODULE_LICENSE("GPL");