fjes: Introduce FUJITSU Extended Socket Network Device driver
This patch adds the basic code of FUJITSU Extended Socket Network Device driver. When "PNP0C02" is found in ACPI DSDT, it evaluates "_STR" to check if "PNP0C02" is for Extended Socket device driver and retrieves ACPI resource information. Then creates platform_device. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>hifive-unleashed-5.1
Taku Izumi
David S. Miller
parent
4a89ba04ec
commit
658d439b22
|
|
@ -413,6 +413,13 @@ config VMXNET3
|
|||
To compile this driver as a module, choose M here: the
|
||||
module will be called vmxnet3.
|
||||
|
||||
config FUJITSU_ES
|
||||
tristate "FUJITSU Extended Socket Network Device driver"
|
||||
depends on ACPI
|
||||
help
|
||||
This driver provides support for Extended Socket network device
|
||||
on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series.
|
||||
|
||||
source "drivers/net/hyperv/Kconfig"
|
||||
|
||||
endif # NETDEVICES
|
||||
|
|
|
|||
|
|
@ -68,3 +68,5 @@ obj-$(CONFIG_USB_NET_DRIVERS) += usb/
|
|||
|
||||
obj-$(CONFIG_HYPERV_NET) += hyperv/
|
||||
obj-$(CONFIG_NTB_NETDEV) += ntb_netdev.o
|
||||
|
||||
obj-$(CONFIG_FUJITSU_ES) += fjes/
|
||||
|
|
|
|||
|
|
@ -0,0 +1,30 @@
|
|||
################################################################################
|
||||
#
|
||||
# FUJITSU Extended Socket Network Device driver
|
||||
# Copyright (c) 2015 FUJITSU LIMITED
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify it
|
||||
# under the terms and conditions of the GNU General Public License,
|
||||
# version 2, as published by the Free Software Foundation.
|
||||
#
|
||||
# This program is distributed in the hope 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/>.
|
||||
#
|
||||
# The full GNU General Public License is included in this distribution in
|
||||
# the file called "COPYING".
|
||||
#
|
||||
################################################################################
|
||||
|
||||
|
||||
#
|
||||
# Makefile for the FUJITSU Extended Socket network device driver
|
||||
#
|
||||
|
||||
obj-$(CONFIG_FUJITSU_ES) += fjes.o
|
||||
|
||||
fjes-objs := fjes_main.o
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
/*
|
||||
* FUJITSU Extended Socket Network Device driver
|
||||
* Copyright (c) 2015 FUJITSU LIMITED
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope 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/>.
|
||||
*
|
||||
* The full GNU General Public License is included in this distribution in
|
||||
* the file called "COPYING".
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef FJES_H_
|
||||
#define FJES_H_
|
||||
|
||||
#include <linux/acpi.h>
|
||||
|
||||
#define FJES_ACPI_SYMBOL "Extended Socket"
|
||||
|
||||
extern char fjes_driver_name[];
|
||||
extern char fjes_driver_version[];
|
||||
|
||||
#endif /* FJES_H_ */
|
||||
|
|
@ -0,0 +1,213 @@
|
|||
/*
|
||||
* FUJITSU Extended Socket Network Device driver
|
||||
* Copyright (c) 2015 FUJITSU LIMITED
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope 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/>.
|
||||
*
|
||||
* The full GNU General Public License is included in this distribution in
|
||||
* the file called "COPYING".
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/nls.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include "fjes.h"
|
||||
|
||||
#define MAJ 1
|
||||
#define MIN 0
|
||||
#define DRV_VERSION __stringify(MAJ) "." __stringify(MIN)
|
||||
#define DRV_NAME "fjes"
|
||||
char fjes_driver_name[] = DRV_NAME;
|
||||
char fjes_driver_version[] = DRV_VERSION;
|
||||
static const char fjes_driver_string[] =
|
||||
"FUJITSU Extended Socket Network Device Driver";
|
||||
static const char fjes_copyright[] =
|
||||
"Copyright (c) 2015 FUJITSU LIMITED";
|
||||
|
||||
MODULE_AUTHOR("Taku Izumi <izumi.taku@jp.fujitsu.com>");
|
||||
MODULE_DESCRIPTION("FUJITSU Extended Socket Network Device Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
static int fjes_acpi_add(struct acpi_device *);
|
||||
static int fjes_acpi_remove(struct acpi_device *);
|
||||
static acpi_status fjes_get_acpi_resource(struct acpi_resource *, void*);
|
||||
|
||||
static int fjes_probe(struct platform_device *);
|
||||
static int fjes_remove(struct platform_device *);
|
||||
|
||||
static const struct acpi_device_id fjes_acpi_ids[] = {
|
||||
{"PNP0C02", 0},
|
||||
{"", 0},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, fjes_acpi_ids);
|
||||
|
||||
static struct acpi_driver fjes_acpi_driver = {
|
||||
.name = DRV_NAME,
|
||||
.class = DRV_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
.ids = fjes_acpi_ids,
|
||||
.ops = {
|
||||
.add = fjes_acpi_add,
|
||||
.remove = fjes_acpi_remove,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_driver fjes_driver = {
|
||||
.driver = {
|
||||
.name = DRV_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.probe = fjes_probe,
|
||||
.remove = fjes_remove,
|
||||
};
|
||||
|
||||
static struct resource fjes_resource[] = {
|
||||
{
|
||||
.flags = IORESOURCE_MEM,
|
||||
.start = 0,
|
||||
.end = 0,
|
||||
},
|
||||
{
|
||||
.flags = IORESOURCE_IRQ,
|
||||
.start = 0,
|
||||
.end = 0,
|
||||
},
|
||||
};
|
||||
|
||||
static int fjes_acpi_add(struct acpi_device *device)
|
||||
{
|
||||
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL};
|
||||
char str_buf[sizeof(FJES_ACPI_SYMBOL) + 1];
|
||||
struct platform_device *plat_dev;
|
||||
union acpi_object *str;
|
||||
acpi_status status;
|
||||
int result;
|
||||
|
||||
status = acpi_evaluate_object(device->handle, "_STR", NULL, &buffer);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
str = buffer.pointer;
|
||||
result = utf16s_to_utf8s((wchar_t *)str->string.pointer,
|
||||
str->string.length, UTF16_LITTLE_ENDIAN,
|
||||
str_buf, sizeof(str_buf) - 1);
|
||||
str_buf[result] = 0;
|
||||
|
||||
if (strncmp(FJES_ACPI_SYMBOL, str_buf, strlen(FJES_ACPI_SYMBOL)) != 0) {
|
||||
kfree(buffer.pointer);
|
||||
return -ENODEV;
|
||||
}
|
||||
kfree(buffer.pointer);
|
||||
|
||||
status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
|
||||
fjes_get_acpi_resource, fjes_resource);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
/* create platform_device */
|
||||
plat_dev = platform_device_register_simple(DRV_NAME, 0, fjes_resource,
|
||||
ARRAY_SIZE(fjes_resource));
|
||||
device->driver_data = plat_dev;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fjes_acpi_remove(struct acpi_device *device)
|
||||
{
|
||||
struct platform_device *plat_dev;
|
||||
|
||||
plat_dev = (struct platform_device *)acpi_driver_data(device);
|
||||
platform_device_unregister(plat_dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static acpi_status
|
||||
fjes_get_acpi_resource(struct acpi_resource *acpi_res, void *data)
|
||||
{
|
||||
struct acpi_resource_address32 *addr;
|
||||
struct acpi_resource_irq *irq;
|
||||
struct resource *res = data;
|
||||
|
||||
switch (acpi_res->type) {
|
||||
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
||||
addr = &acpi_res->data.address32;
|
||||
res[0].start = addr->address.minimum;
|
||||
res[0].end = addr->address.minimum +
|
||||
addr->address.address_length - 1;
|
||||
break;
|
||||
|
||||
case ACPI_RESOURCE_TYPE_IRQ:
|
||||
irq = &acpi_res->data.irq;
|
||||
if (irq->interrupt_count != 1)
|
||||
return AE_ERROR;
|
||||
res[1].start = irq->interrupts[0];
|
||||
res[1].end = irq->interrupts[0];
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return AE_OK;
|
||||
}
|
||||
|
||||
/* fjes_probe - Device Initialization Routine */
|
||||
static int fjes_probe(struct platform_device *plat_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* fjes_remove - Device Removal Routine */
|
||||
static int fjes_remove(struct platform_device *plat_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* fjes_init_module - Driver Registration Routine */
|
||||
static int __init fjes_init_module(void)
|
||||
{
|
||||
int result;
|
||||
|
||||
pr_info("%s - version %s - %s\n",
|
||||
fjes_driver_string, fjes_driver_version, fjes_copyright);
|
||||
|
||||
result = platform_driver_register(&fjes_driver);
|
||||
if (result < 0)
|
||||
return result;
|
||||
|
||||
result = acpi_bus_register_driver(&fjes_acpi_driver);
|
||||
if (result < 0)
|
||||
goto fail_acpi_driver;
|
||||
|
||||
return 0;
|
||||
|
||||
fail_acpi_driver:
|
||||
platform_driver_unregister(&fjes_driver);
|
||||
return result;
|
||||
}
|
||||
|
||||
module_init(fjes_init_module);
|
||||
|
||||
/* fjes_exit_module - Driver Exit Cleanup Routine */
|
||||
static void __exit fjes_exit_module(void)
|
||||
{
|
||||
acpi_bus_unregister_driver(&fjes_acpi_driver);
|
||||
platform_driver_unregister(&fjes_driver);
|
||||
}
|
||||
|
||||
module_exit(fjes_exit_module);
|
||||
Loading…
Reference in New Issue