[PATCH] ibmasm driver: redesign handling of remote control events

This patch rewrites the handling of remote control events.  Rather than making
them available from a special file in the ibmasmfs, now the events from the
RSA card get translated into kernel input events and injected into the input
subsystem.  The driver now will generate two /dev/input/eventX nodes -- one
for the keyboard and one for the mouse.  The mouse node generates absolute
events more like a touch pad than a mouse.

Signed-off-by: Vernon Mauery <vernux@us.ibm.com>
Signed-off-by: Max Asbock <masbock@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Max Asbock
2005-06-21 17:16:34 -07:00
committed by Linus Torvalds
parent b8acb80846
commit 278d72ae88
6 changed files with 457 additions and 277 deletions

View File

@@ -56,17 +56,26 @@
#include "lowlevel.h"
#include "remote.h"
int ibmasm_debug = 0;
module_param(ibmasm_debug, int , S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ibmasm_debug, " Set debug mode on or off");
static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int err, result = -ENOMEM;
int result;
struct service_processor *sp;
if ((err = pci_enable_device(pdev))) {
printk(KERN_ERR "%s: can't enable PCI device at %s\n",
DRIVER_NAME, pci_name(pdev));
return err;
if ((result = pci_enable_device(pdev))) {
dev_err(&pdev->dev, "Failed to enable PCI device\n");
return result;
}
if ((result = pci_request_regions(pdev, DRIVER_NAME))) {
dev_err(&pdev->dev, "Failed to allocate PCI resources\n");
goto error_resources;
}
/* vnc client won't work without bus-mastering */
pci_set_master(pdev);
sp = kmalloc(sizeof(struct service_processor), GFP_KERNEL);
if (sp == NULL) {
@@ -76,6 +85,9 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi
}
memset(sp, 0, sizeof(struct service_processor));
sp->lock = SPIN_LOCK_UNLOCKED;
INIT_LIST_HEAD(&sp->command_queue);
pci_set_drvdata(pdev, (void *)sp);
sp->dev = &pdev->dev;
sp->number = pdev->bus->number;
@@ -101,15 +113,6 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi
goto error_ioremap;
}
result = ibmasm_init_remote_queue(sp);
if (result) {
dev_err(sp->dev, "Failed to initialize remote queue\n");
goto error_remote_queue;
}
spin_lock_init(&sp->lock);
INIT_LIST_HEAD(&sp->command_queue);
result = request_irq(sp->irq, ibmasm_interrupt_handler, SA_SHIRQ, sp->devname, (void*)sp);
if (result) {
dev_err(sp->dev, "Failed to register interrupt handler\n");
@@ -117,7 +120,12 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi
}
enable_sp_interrupts(sp->base_address);
disable_mouse_interrupts(sp);
result = ibmasm_init_remote_input_dev(sp);
if (result) {
dev_err(sp->dev, "Failed to initialize remote queue\n");
goto error_send_message;
}
result = ibmasm_send_driver_vpd(sp);
if (result) {
@@ -133,30 +141,25 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi
ibmasm_register_uart(sp);
dev_printk(KERN_DEBUG, &pdev->dev, "WARNING: This software may not be supported or function\n");
dev_printk(KERN_DEBUG, &pdev->dev, "correctly on your IBM server. Please consult the IBM\n");
dev_printk(KERN_DEBUG, &pdev->dev, "ServerProven website\n");
dev_printk(KERN_DEBUG, &pdev->dev, "http://www.pc.ibm.com/ww/eserver/xseries/serverproven\n");
dev_printk(KERN_DEBUG, &pdev->dev, "for information on the specific driver level and support\n");
dev_printk(KERN_DEBUG, &pdev->dev, "statement for your IBM server.\n");
return 0;
error_send_message:
disable_sp_interrupts(sp->base_address);
ibmasm_free_remote_input_dev(sp);
free_irq(sp->irq, (void *)sp);
error_request_irq:
ibmasm_free_remote_queue(sp);
error_remote_queue:
iounmap(sp->base_address);
error_ioremap:
ibmasm_heartbeat_exit(sp);
error_heartbeat:
ibmasm_event_buffer_exit(sp);
error_eventbuffer:
pci_set_drvdata(pdev, NULL);
kfree(sp);
error_kmalloc:
pci_disable_device(pdev);
pci_release_regions(pdev);
error_resources:
pci_disable_device(pdev);
return result;
}
@@ -165,16 +168,24 @@ static void __devexit ibmasm_remove_one(struct pci_dev *pdev)
{
struct service_processor *sp = (struct service_processor *)pci_get_drvdata(pdev);
dbg("Unregistering UART\n");
ibmasm_unregister_uart(sp);
ibmasm_send_os_state(sp, SYSTEM_STATE_OS_DOWN);
disable_sp_interrupts(sp->base_address);
disable_mouse_interrupts(sp);
free_irq(sp->irq, (void *)sp);
dbg("Sending OS down message\n");
if (ibmasm_send_os_state(sp, SYSTEM_STATE_OS_DOWN))
err("failed to get repsonse to 'Send OS State' command\n");
dbg("Disabling heartbeats\n");
ibmasm_heartbeat_exit(sp);
ibmasm_free_remote_queue(sp);
dbg("Disabling interrupts\n");
disable_sp_interrupts(sp->base_address);
dbg("Freeing SP irq\n");
free_irq(sp->irq, (void *)sp);
dbg("Cleaning up\n");
ibmasm_free_remote_input_dev(sp);
iounmap(sp->base_address);
ibmasm_event_buffer_exit(sp);
pci_set_drvdata(pdev, NULL);
kfree(sp);
pci_release_regions(pdev);
pci_disable_device(pdev);
}