diff options
Diffstat (limited to 'drivers/input/mouse/pc110pad.c')
| -rw-r--r-- | drivers/input/mouse/pc110pad.c | 98 |
1 files changed, 52 insertions, 46 deletions
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c index 93393d5c007..7b02b652e26 100644 --- a/drivers/input/mouse/pc110pad.c +++ b/drivers/input/mouse/pc110pad.c @@ -1,6 +1,4 @@ /* - * $Id: pc110pad.c,v 1.12 2001/09/25 10:12:07 vojtech Exp $ - * * Copyright (c) 2000-2001 Vojtech Pavlik * * Based on the work of: @@ -39,6 +37,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/pci.h> +#include <linux/delay.h> #include <asm/io.h> #include <asm/irq.h> @@ -53,20 +52,19 @@ MODULE_LICENSE("GPL"); static int pc110pad_irq = 10; static int pc110pad_io = 0x15e0; -static struct input_dev pc110pad_dev; +static struct input_dev *pc110pad_dev; static int pc110pad_data[3]; static int pc110pad_count; -static char *pc110pad_name = "IBM PC110 TouchPad"; -static char *pc110pad_phys = "isa15e0/input0"; - -static irqreturn_t pc110pad_interrupt(int irq, void *ptr, struct pt_regs *regs) +static irqreturn_t pc110pad_interrupt(int irq, void *ptr) { int value = inb_p(pc110pad_io); int handshake = inb_p(pc110pad_io + 2); - outb_p(handshake | 1, pc110pad_io + 2); - outb_p(handshake & ~1, pc110pad_io + 2); + outb(handshake | 1, pc110pad_io + 2); + udelay(2); + outb(handshake & ~1, pc110pad_io + 2); + udelay(2); inb_p(0x64); pc110pad_data[pc110pad_count++] = value; @@ -74,14 +72,13 @@ static irqreturn_t pc110pad_interrupt(int irq, void *ptr, struct pt_regs *regs) if (pc110pad_count < 3) return IRQ_HANDLED; - input_regs(&pc110pad_dev, regs); - input_report_key(&pc110pad_dev, BTN_TOUCH, + input_report_key(pc110pad_dev, BTN_TOUCH, pc110pad_data[0] & 0x01); - input_report_abs(&pc110pad_dev, ABS_X, + input_report_abs(pc110pad_dev, ABS_X, pc110pad_data[1] | ((pc110pad_data[0] << 3) & 0x80) | ((pc110pad_data[0] << 1) & 0x100)); - input_report_abs(&pc110pad_dev, ABS_Y, + input_report_abs(pc110pad_dev, ABS_Y, pc110pad_data[2] | ((pc110pad_data[0] << 4) & 0x80)); - input_sync(&pc110pad_dev); + input_sync(pc110pad_dev); pc110pad_count = 0; return IRQ_HANDLED; @@ -94,9 +91,9 @@ static void pc110pad_close(struct input_dev *dev) static int pc110pad_open(struct input_dev *dev) { - pc110pad_interrupt(0,NULL,NULL); - pc110pad_interrupt(0,NULL,NULL); - pc110pad_interrupt(0,NULL,NULL); + pc110pad_interrupt(0, NULL); + pc110pad_interrupt(0, NULL); + pc110pad_interrupt(0, NULL); outb(PC110PAD_ON, pc110pad_io + 2); pc110pad_count = 0; @@ -111,13 +108,10 @@ static int pc110pad_open(struct input_dev *dev) */ static int __init pc110pad_init(void) { - struct pci_dev *dev; + int err; - dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); - if (dev) { - pci_dev_put(dev); - return -ENOENT; - } + if (!no_pci_devices()) + return -ENODEV; if (!request_region(pc110pad_io, 4, "pc110pad")) { printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n", @@ -127,45 +121,57 @@ static int __init pc110pad_init(void) outb(PC110PAD_OFF, pc110pad_io + 2); - if (request_irq(pc110pad_irq, pc110pad_interrupt, 0, "pc110pad", NULL)) - { - release_region(pc110pad_io, 4); + if (request_irq(pc110pad_irq, pc110pad_interrupt, 0, "pc110pad", NULL)) { printk(KERN_ERR "pc110pad: Unable to get irq %d.\n", pc110pad_irq); - return -EBUSY; + err = -EBUSY; + goto err_release_region; } - pc110pad_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); - pc110pad_dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y); - pc110pad_dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); + pc110pad_dev = input_allocate_device(); + if (!pc110pad_dev) { + printk(KERN_ERR "pc110pad: Not enough memory.\n"); + err = -ENOMEM; + goto err_free_irq; + } - pc110pad_dev.absmax[ABS_X] = 0x1ff; - pc110pad_dev.absmax[ABS_Y] = 0x0ff; + pc110pad_dev->name = "IBM PC110 TouchPad"; + pc110pad_dev->phys = "isa15e0/input0"; + pc110pad_dev->id.bustype = BUS_ISA; + pc110pad_dev->id.vendor = 0x0003; + pc110pad_dev->id.product = 0x0001; + pc110pad_dev->id.version = 0x0100; - pc110pad_dev.open = pc110pad_open; - pc110pad_dev.close = pc110pad_close; + pc110pad_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + pc110pad_dev->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y); + pc110pad_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - pc110pad_dev.name = pc110pad_name; - pc110pad_dev.phys = pc110pad_phys; - pc110pad_dev.id.bustype = BUS_ISA; - pc110pad_dev.id.vendor = 0x0003; - pc110pad_dev.id.product = 0x0001; - pc110pad_dev.id.version = 0x0100; + input_abs_set_max(pc110pad_dev, ABS_X, 0x1ff); + input_abs_set_max(pc110pad_dev, ABS_Y, 0x0ff); - input_register_device(&pc110pad_dev); + pc110pad_dev->open = pc110pad_open; + pc110pad_dev->close = pc110pad_close; - printk(KERN_INFO "input: %s at %#x irq %d\n", - pc110pad_name, pc110pad_io, pc110pad_irq); + err = input_register_device(pc110pad_dev); + if (err) + goto err_free_dev; return 0; + + err_free_dev: + input_free_device(pc110pad_dev); + err_free_irq: + free_irq(pc110pad_irq, NULL); + err_release_region: + release_region(pc110pad_io, 4); + + return err; } static void __exit pc110pad_exit(void) { - input_unregister_device(&pc110pad_dev); - outb(PC110PAD_OFF, pc110pad_io + 2); - free_irq(pc110pad_irq, NULL); + input_unregister_device(pc110pad_dev); release_region(pc110pad_io, 4); } |