linux/drivers/tty/ipwireless/main.c
Greg Kroah-Hartman e3b3d0f549 tty: add SPDX identifiers to all remaining files in drivers/tty/
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the drivers/tty files files with the correct SPDX license
identifier based on the license text in the file itself.  The SPDX
identifier is a legally binding shorthand, which can be used instead of
the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Jiri Slaby <jslaby@suse.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: David Sterba <dsterba@suse.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Joachim Eastwood <manabian@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Richard Genoud <richard.genoud@gmail.com>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: "Uwe Kleine-König" <kernel@pengutronix.de>
Cc: Pat Gefre <pfg@sgi.com>
Cc: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Sylvain Lemieux <slemieux.tyco@gmail.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Andy Gross <andy.gross@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Timur Tabi <timur@tabi.org>
Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08 13:08:12 +01:00

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");