349 lines
8.5 KiB
C
349 lines
8.5 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* IPWireless 3G PCMCIA Network Driver
|
||
|
|
*
|
||
|
|
* Original code
|
||
|
|
* by Stephen Blackheath <stephen@blacksapphire.com>,
|
||
|
|
* Ben Martel <benm@symmetric.co.nz>
|
||
|
|
*
|
||
|
|
* Copyrighted as follows:
|
||
|
|
* Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
|
||
|
|
*
|
||
|
|
* Various driver changes and rewrites, port to new kernels
|
||
|
|
* Copyright (C) 2006-2007 Jiri Kosina
|
||
|
|
*
|
||
|
|
* Misc code cleanups and updates
|
||
|
|
* Copyright (C) 2007 David Sterba
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "hardware.h"
|
||
|
|
#include "network.h"
|
||
|
|
#include "main.h"
|
||
|
|
#include "tty.h"
|
||
|
|
|
||
|
|
#include <linux/delay.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <linux/slab.h>
|
||
|
|
|
||
|
|
#include <pcmcia/cisreg.h>
|
||
|
|
#include <pcmcia/device_id.h>
|
||
|
|
#include <pcmcia/ss.h>
|
||
|
|
#include <pcmcia/ds.h>
|
||
|
|
|
||
|
|
static const struct pcmcia_device_id ipw_ids[] = {
|
||
|
|
PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
|
||
|
|
PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
|
||
|
|
PCMCIA_DEVICE_NULL
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
|
||
|
|
|
||
|
|
static void ipwireless_detach(struct pcmcia_device *link);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Module params
|
||
|
|
*/
|
||
|
|
/* Debug mode: more verbose, print sent/recv bytes */
|
||
|
|
int ipwireless_debug;
|
||
|
|
int ipwireless_loopback;
|
||
|
|
int ipwireless_out_queue = 10;
|
||
|
|
|
||
|
|
module_param_named(debug, ipwireless_debug, int, 0);
|
||
|
|
module_param_named(loopback, ipwireless_loopback, int, 0);
|
||
|
|
module_param_named(out_queue, ipwireless_out_queue, int, 0);
|
||
|
|
MODULE_PARM_DESC(debug, "switch on debug messages [0]");
|
||
|
|
MODULE_PARM_DESC(loopback,
|
||
|
|
"debug: enable ras_raw channel [0]");
|
||
|
|
MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
|
||
|
|
|
||
|
|
/* Executes in process context. */
|
||
|
|
static void signalled_reboot_work(struct work_struct *work_reboot)
|
||
|
|
{
|
||
|
|
struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
|
||
|
|
work_reboot);
|
||
|
|
struct pcmcia_device *link = ipw->link;
|
||
|
|
pcmcia_reset_card(link->socket);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void signalled_reboot_callback(void *callback_data)
|
||
|
|
{
|
||
|
|
struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
|
||
|
|
|
||
|
|
/* Delegate to process context. */
|
||
|
|
schedule_work(&ipw->work_reboot);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
|
||
|
|
{
|
||
|
|
struct ipw_dev *ipw = priv_data;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
|
||
|
|
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
|
||
|
|
|
||
|
|
/* 0x40 causes it to generate level mode interrupts. */
|
||
|
|
/* 0x04 enables IREQ pin. */
|
||
|
|
p_dev->config_index |= 0x44;
|
||
|
|
p_dev->io_lines = 16;
|
||
|
|
ret = pcmcia_request_io(p_dev);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
if (!request_region(p_dev->resource[0]->start,
|
||
|
|
resource_size(p_dev->resource[0]),
|
||
|
|
IPWIRELESS_PCCARD_NAME)) {
|
||
|
|
ret = -EBUSY;
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
p_dev->resource[2]->flags |=
|
||
|
|
WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
|
||
|
|
|
||
|
|
ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit1;
|
||
|
|
|
||
|
|
ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit1;
|
||
|
|
|
||
|
|
ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
|
||
|
|
|
||
|
|
ipw->common_memory = ioremap(p_dev->resource[2]->start,
|
||
|
|
resource_size(p_dev->resource[2]));
|
||
|
|
if (!request_mem_region(p_dev->resource[2]->start,
|
||
|
|
resource_size(p_dev->resource[2]),
|
||
|
|
IPWIRELESS_PCCARD_NAME)) {
|
||
|
|
ret = -EBUSY;
|
||
|
|
goto exit2;
|
||
|
|
}
|
||
|
|
|
||
|
|
p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
|
||
|
|
WIN_ENABLE;
|
||
|
|
p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
|
||
|
|
ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit3;
|
||
|
|
|
||
|
|
ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit3;
|
||
|
|
|
||
|
|
ipw->attr_memory = ioremap(p_dev->resource[3]->start,
|
||
|
|
resource_size(p_dev->resource[3]));
|
||
|
|
if (!request_mem_region(p_dev->resource[3]->start,
|
||
|
|
resource_size(p_dev->resource[3]),
|
||
|
|
IPWIRELESS_PCCARD_NAME)) {
|
||
|
|
ret = -EBUSY;
|
||
|
|
goto exit4;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
exit4:
|
||
|
|
iounmap(ipw->attr_memory);
|
||
|
|
exit3:
|
||
|
|
release_mem_region(p_dev->resource[2]->start,
|
||
|
|
resource_size(p_dev->resource[2]));
|
||
|
|
exit2:
|
||
|
|
iounmap(ipw->common_memory);
|
||
|
|
exit1:
|
||
|
|
release_region(p_dev->resource[0]->start,
|
||
|
|
resource_size(p_dev->resource[0]));
|
||
|
|
exit:
|
||
|
|
pcmcia_disable_device(p_dev);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int config_ipwireless(struct ipw_dev *ipw)
|
||
|
|
{
|
||
|
|
struct pcmcia_device *link = ipw->link;
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
ipw->is_v2_card = 0;
|
||
|
|
link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
|
||
|
|
CONF_ENABLE_IRQ;
|
||
|
|
|
||
|
|
ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
|
||
|
|
if (ret != 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
|
||
|
|
|
||
|
|
ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
|
||
|
|
ipw->attr_memory, ipw->common_memory,
|
||
|
|
ipw->is_v2_card, signalled_reboot_callback,
|
||
|
|
ipw);
|
||
|
|
|
||
|
|
ret = pcmcia_request_irq(link, ipwireless_interrupt);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit;
|
||
|
|
|
||
|
|
printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
|
||
|
|
ipw->is_v2_card ? "V2/V3" : "V1");
|
||
|
|
printk(KERN_INFO IPWIRELESS_PCCARD_NAME
|
||
|
|
": I/O ports %pR, irq %d\n", link->resource[0],
|
||
|
|
(unsigned int) link->irq);
|
||
|
|
if (ipw->attr_memory && ipw->common_memory)
|
||
|
|
printk(KERN_INFO IPWIRELESS_PCCARD_NAME
|
||
|
|
": attr memory %pR, common memory %pR\n",
|
||
|
|
link->resource[3],
|
||
|
|
link->resource[2]);
|
||
|
|
|
||
|
|
ipw->network = ipwireless_network_create(ipw->hardware);
|
||
|
|
if (!ipw->network)
|
||
|
|
goto exit;
|
||
|
|
|
||
|
|
ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
|
||
|
|
if (!ipw->tty)
|
||
|
|
goto exit;
|
||
|
|
|
||
|
|
ipwireless_init_hardware_v2_v3(ipw->hardware);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Do the RequestConfiguration last, because it enables interrupts.
|
||
|
|
* Then we don't get any interrupts before we're ready for them.
|
||
|
|
*/
|
||
|
|
ret = pcmcia_enable_device(link);
|
||
|
|
if (ret != 0)
|
||
|
|
goto exit;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
exit:
|
||
|
|
if (ipw->common_memory) {
|
||
|
|
release_mem_region(link->resource[2]->start,
|
||
|
|
resource_size(link->resource[2]));
|
||
|
|
iounmap(ipw->common_memory);
|
||
|
|
}
|
||
|
|
if (ipw->attr_memory) {
|
||
|
|
release_mem_region(link->resource[3]->start,
|
||
|
|
resource_size(link->resource[3]));
|
||
|
|
iounmap(ipw->attr_memory);
|
||
|
|
}
|
||
|
|
pcmcia_disable_device(link);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void release_ipwireless(struct ipw_dev *ipw)
|
||
|
|
{
|
||
|
|
release_region(ipw->link->resource[0]->start,
|
||
|
|
resource_size(ipw->link->resource[0]));
|
||
|
|
if (ipw->common_memory) {
|
||
|
|
release_mem_region(ipw->link->resource[2]->start,
|
||
|
|
resource_size(ipw->link->resource[2]));
|
||
|
|
iounmap(ipw->common_memory);
|
||
|
|
}
|
||
|
|
if (ipw->attr_memory) {
|
||
|
|
release_mem_region(ipw->link->resource[3]->start,
|
||
|
|
resource_size(ipw->link->resource[3]));
|
||
|
|
iounmap(ipw->attr_memory);
|
||
|
|
}
|
||
|
|
pcmcia_disable_device(ipw->link);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ipwireless_attach() creates an "instance" of the driver, allocating
|
||
|
|
* local data structures for one device (one interface). The device
|
||
|
|
* is registered with Card Services.
|
||
|
|
*
|
||
|
|
* The pcmcia_device structure is initialized, but we don't actually
|
||
|
|
* configure the card at this point -- we wait until we receive a
|
||
|
|
* card insertion event.
|
||
|
|
*/
|
||
|
|
static int ipwireless_attach(struct pcmcia_device *link)
|
||
|
|
{
|
||
|
|
struct ipw_dev *ipw;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
|
||
|
|
if (!ipw)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
ipw->link = link;
|
||
|
|
link->priv = ipw;
|
||
|
|
|
||
|
|
ipw->hardware = ipwireless_hardware_create();
|
||
|
|
if (!ipw->hardware) {
|
||
|
|
kfree(ipw);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
/* RegisterClient will call config_ipwireless */
|
||
|
|
|
||
|
|
ret = config_ipwireless(ipw);
|
||
|
|
|
||
|
|
if (ret != 0) {
|
||
|
|
ipwireless_detach(link);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This deletes a driver "instance". The device is de-registered with
|
||
|
|
* Card Services. If it has been released, all local data structures
|
||
|
|
* are freed. Otherwise, the structures will be freed when the device
|
||
|
|
* is released.
|
||
|
|
*/
|
||
|
|
static void ipwireless_detach(struct pcmcia_device *link)
|
||
|
|
{
|
||
|
|
struct ipw_dev *ipw = link->priv;
|
||
|
|
|
||
|
|
release_ipwireless(ipw);
|
||
|
|
|
||
|
|
if (ipw->tty != NULL)
|
||
|
|
ipwireless_tty_free(ipw->tty);
|
||
|
|
if (ipw->network != NULL)
|
||
|
|
ipwireless_network_free(ipw->network);
|
||
|
|
if (ipw->hardware != NULL)
|
||
|
|
ipwireless_hardware_free(ipw->hardware);
|
||
|
|
kfree(ipw);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pcmcia_driver me = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.probe = ipwireless_attach,
|
||
|
|
.remove = ipwireless_detach,
|
||
|
|
.name = IPWIRELESS_PCCARD_NAME,
|
||
|
|
.id_table = ipw_ids
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Module insertion : initialisation of the module.
|
||
|
|
* Register the card with cardmgr...
|
||
|
|
*/
|
||
|
|
static int __init init_ipwireless(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = ipwireless_tty_init();
|
||
|
|
if (ret != 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = pcmcia_register_driver(&me);
|
||
|
|
if (ret != 0)
|
||
|
|
ipwireless_tty_release();
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Module removal
|
||
|
|
*/
|
||
|
|
static void __exit exit_ipwireless(void)
|
||
|
|
{
|
||
|
|
pcmcia_unregister_driver(&me);
|
||
|
|
ipwireless_tty_release();
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(init_ipwireless);
|
||
|
|
module_exit(exit_ipwireless);
|
||
|
|
|
||
|
|
MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
|
||
|
|
MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
|
||
|
|
MODULE_LICENSE("GPL");
|