/*
* drivers/input/serio/gscps2.c
*
- * Copyright (c) 2004 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2004-2006 Helge Deller <deller@gmx.de>
* Copyright (c) 2002 Laurent Canet <canetl@esiee.fr>
- * Copyright (c) 2002 Thibaut Varene <varenet@esiee.fr>
+ * Copyright (c) 2002 Thibaut Varene <varenet@parisc-linux.org>
*
* Pieces of code based on linux-2.4's hp_mouse.c & hp_keyb.c
- * Copyright (c) 1999 Alex deVries <adevries@thepuffingroup.com>
+ * Copyright (c) 1999 Alex deVries <alex@onefishtwo.ca>
* Copyright (c) 1999-2000 Philipp Rumpf <prumpf@tux.org>
* Copyright (c) 2000 Xavier Debacker <debackex@esiee.fr>
* Copyright (c) 2000-2001 Thomas Marteau <marteaut@esiee.fr>
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
- *
+ *
* TODO:
* - Dino testing (did HP ever shipped a machine on which this port
* was usable/enabled ?)
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/serio.h>
#include <asm/io.h>
#include <asm/parisc-device.h>
-MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>, Thibaut Varene <varenet@esiee.fr>, Helge Deller <deller@gmx.de>");
-MODULE_DESCRIPTION("HP GSC PS/2 port driver");
+MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>, Thibaut Varene <varenet@parisc-linux.org>, Helge Deller <deller@gmx.de>");
+MODULE_DESCRIPTION("HP GSC PS2 port driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
#define PFX "gscps2.c: "
-/*
+/*
* Driver constants
*/
#define GSC_ID_MOUSE 1
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs);
+static irqreturn_t gscps2_interrupt(int irq, void *dev);
#define BUFFER_SIZE 0x0f
struct gscps2port {
struct list_head node;
struct parisc_device *padev;
- struct serio port;
+ struct serio *port;
spinlock_t lock;
char *addr;
u8 act, append; /* position in buffer[] */
u8 str;
} buffer[BUFFER_SIZE+1];
int id;
- char name[32];
};
/*
/* make sure any received data is returned as fast as possible */
/* this is important e.g. when we set the LEDs on the keyboard */
- gscps2_interrupt(0, NULL, NULL);
+ gscps2_interrupt(0, NULL);
return 1;
}
writeb(0xff, addr+GSC_RESET);
gscps2_flush(ps2port);
spin_unlock_irqrestore(&ps2port->lock, flags);
-
- /* enable it */
- gscps2_enable(ps2port, ENABLE);
}
static LIST_HEAD(ps2port_list);
/**
* gscps2_interrupt() - Interruption service routine
*
- * This function reads received PS/2 bytes and processes them on
+ * This function reads received PS/2 bytes and processes them on
* all interfaces.
* The problematic part here is, that the keyboard and mouse PS/2 port
* share the same interrupt and it's not possible to send data if any
* later.
*/
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t gscps2_interrupt(int irq, void *dev)
{
struct gscps2port *ps2port;
unsigned long flags;
spin_lock_irqsave(&ps2port->lock, flags);
- while ( (ps2port->buffer[ps2port->append].str =
+ while ( (ps2port->buffer[ps2port->append].str =
gscps2_readb_status(ps2port->addr)) & GSC_STAT_RBNE ) {
- ps2port->buffer[ps2port->append].data =
+ ps2port->buffer[ps2port->append].data =
gscps2_readb_input(ps2port->addr);
ps2port->append = ((ps2port->append+1) & BUFFER_SIZE);
}
rxflags = ((status & GSC_STAT_TERR) ? SERIO_TIMEOUT : 0 ) |
((status & GSC_STAT_PERR) ? SERIO_PARITY : 0 );
- serio_interrupt(&ps2port->port, data, rxflags, regs);
+ serio_interrupt(ps2port->port, data, rxflags);
} /* while() */
static int gscps2_write(struct serio *port, unsigned char data)
{
- struct gscps2port *ps2port = port->driver;
+ struct gscps2port *ps2port = port->port_data;
if (!gscps2_writeb_output(ps2port, data)) {
printk(KERN_DEBUG PFX "sending byte %#x failed.\n", data);
static int gscps2_open(struct serio *port)
{
- struct gscps2port *ps2port = port->driver;
+ struct gscps2port *ps2port = port->port_data;
gscps2_reset(ps2port);
- gscps2_interrupt(0, NULL, NULL);
+ /* enable it */
+ gscps2_enable(ps2port, ENABLE);
+
+ gscps2_interrupt(0, NULL);
return 0;
}
static void gscps2_close(struct serio *port)
{
- struct gscps2port *ps2port = port->driver;
+ struct gscps2port *ps2port = port->port_data;
gscps2_enable(ps2port, DISABLE);
}
-static struct serio gscps2_serio_port =
-{
- .name = "GSC PS/2",
- .idbus = BUS_GSC,
- .idvendor = PCI_VENDOR_ID_HP,
- .idproduct = 0x0001,
- .idversion = 0x0010,
- .type = SERIO_8042,
- .write = gscps2_write,
- .open = gscps2_open,
- .close = gscps2_close,
-};
-
/**
* gscps2_probe() - Probes PS2 devices
* @return: success/error report
static int __init gscps2_probe(struct parisc_device *dev)
{
- struct gscps2port *ps2port;
- unsigned long hpa = dev->hpa;
+ struct gscps2port *ps2port;
+ struct serio *serio;
+ unsigned long hpa = dev->hpa.start;
int ret;
if (!dev->irq)
return -ENODEV;
-
+
/* Offset for DINO PS/2. Works with LASI even */
if (dev->id.sversion == 0x96)
hpa += GSC_DINO_OFFSET;
ps2port = kmalloc(sizeof(struct gscps2port), GFP_KERNEL);
- if (!ps2port)
- return -ENOMEM;
+ serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ps2port || !serio) {
+ ret = -ENOMEM;
+ goto fail_nomem;
+ }
dev_set_drvdata(&dev->dev, ps2port);
memset(ps2port, 0, sizeof(struct gscps2port));
+ memset(serio, 0, sizeof(struct serio));
+ ps2port->port = serio;
ps2port->padev = dev;
- ps2port->addr = ioremap(hpa, GSC_STATUS + 4);
+ ps2port->addr = ioremap_nocache(hpa, GSC_STATUS + 4);
spin_lock_init(&ps2port->lock);
gscps2_reset(ps2port);
- ps2port->id = readb(ps2port->addr+GSC_ID) & 0x0f;
- snprintf(ps2port->name, sizeof(ps2port->name)-1, "%s %s",
- gscps2_serio_port.name,
- (ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse" );
-
- memcpy(&ps2port->port, &gscps2_serio_port, sizeof(gscps2_serio_port));
- ps2port->port.driver = ps2port;
- ps2port->port.name = ps2port->name;
- ps2port->port.phys = dev->dev.bus_id;
-
- list_add_tail(&ps2port->node, &ps2port_list);
+ ps2port->id = readb(ps2port->addr + GSC_ID) & 0x0f;
+
+ snprintf(serio->name, sizeof(serio->name), "GSC PS/2 %s",
+ (ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse");
+ strlcpy(serio->phys, dev->dev.bus_id, sizeof(serio->phys));
+ serio->id.type = SERIO_8042;
+ serio->write = gscps2_write;
+ serio->open = gscps2_open;
+ serio->close = gscps2_close;
+ serio->port_data = ps2port;
+ serio->dev.parent = &dev->dev;
ret = -EBUSY;
- if (request_irq(dev->irq, gscps2_interrupt, SA_SHIRQ, ps2port->name, ps2port))
+ if (request_irq(dev->irq, gscps2_interrupt, IRQF_SHARED, ps2port->port->name, ps2port))
goto fail_miserably;
- if ( (ps2port->id != GSC_ID_KEYBOARD) && (ps2port->id != GSC_ID_MOUSE) ) {
+ if (ps2port->id != GSC_ID_KEYBOARD && ps2port->id != GSC_ID_MOUSE) {
printk(KERN_WARNING PFX "Unsupported PS/2 port at 0x%08lx (id=%d) ignored\n",
hpa, ps2port->id);
ret = -ENODEV;
#endif
printk(KERN_INFO "serio: %s port at 0x%p irq %d @ %s\n",
- ps2port->name,
+ ps2port->port->name,
ps2port->addr,
ps2port->padev->irq,
- ps2port->port.phys);
+ ps2port->port->phys);
+
+ serio_register_port(ps2port->port);
+
+ list_add_tail(&ps2port->node, &ps2port_list);
- serio_register_port(&ps2port->port);
-
return 0;
-
+
fail:
free_irq(dev->irq, ps2port);
fail_miserably:
- list_del(&ps2port->node);
iounmap(ps2port->addr);
- release_mem_region(dev->hpa, GSC_STATUS + 4);
+ release_mem_region(dev->hpa.start, GSC_STATUS + 4);
+
+fail_nomem:
kfree(ps2port);
+ kfree(serio);
return ret;
}
{
struct gscps2port *ps2port = dev_get_drvdata(&dev->dev);
- serio_unregister_port(&ps2port->port);
+ serio_unregister_port(ps2port->port);
free_irq(dev->irq, ps2port);
gscps2_flush(ps2port);
list_del(&ps2port->node);
iounmap(ps2port->addr);
#if 0
- release_mem_region(dev->hpa, GSC_STATUS + 4);
+ release_mem_region(dev->hpa, GSC_STATUS + 4);
#endif
dev_set_drvdata(&dev->dev, NULL);
kfree(ps2port);
static struct parisc_device_id gscps2_device_tbl[] = {
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00084 }, /* LASI PS/2 */
#ifdef DINO_TESTED
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00096 }, /* DINO PS/2 */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00096 }, /* DINO PS/2 */
#endif
{ 0, } /* 0 terminated list */
};
static struct parisc_driver parisc_ps2_driver = {
- .name = "GSC PS/2",
+ .name = "gsc_ps2",
.id_table = gscps2_device_tbl,
.probe = gscps2_probe,
.remove = gscps2_remove,