#include <linux/device.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/err.h>
#include <asm/io.h>
#include <asm/irq.h>
#define PS2_CONTROL_RX_CLOCK_ENABLE BIT(4) /* pause reception if set to 0 */
#define PS2_CONTROL_RESET BIT(5) /* reset */
-
struct maceps2_data {
struct mace_ps2port *port;
int irq;
};
+static struct maceps2_data port_data[2];
+static struct serio *maceps2_port[2];
+static struct platform_device *maceps2_device;
+
static int maceps2_write(struct serio *dev, unsigned char val)
{
- struct mace_ps2port *port = ((struct maceps2_data *)dev->driver)->port;
+ struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
unsigned int timeout = MACE_PS2_TIMEOUT;
do {
return -1;
}
-static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
- struct pt_regs *regs)
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct serio *dev = dev_id;
- struct mace_ps2port *port = ((struct maceps2_data *)dev->driver)->port;
+ struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
unsigned int byte;
if (mace_read(port->status) & PS2_STATUS_RX_FULL) {
static int maceps2_open(struct serio *dev)
{
- struct maceps2_data *data = (struct maceps2_data *)dev->driver;
+ struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
if (request_irq(data->irq, maceps2_interrupt, 0, "PS/2 port", dev)) {
printk(KERN_ERR "Could not allocate PS/2 IRQ\n");
static void maceps2_close(struct serio *dev)
{
- struct maceps2_data *data = (struct maceps2_data *)dev->driver;
+ struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
mace_write(PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET,
data->port->control);
free_irq(data->irq, dev);
}
-static struct maceps2_data port0_data, port1_data;
-static struct serio maceps2_port0 =
+static struct serio * __init maceps2_allocate_port(int idx)
{
- .type = SERIO_8042,
- .open = maceps2_open,
- .close = maceps2_close,
- .write = maceps2_write,
- .name = "MACE PS/2 port0",
- .phys = "mace/serio0",
- .driver = &port0_data,
-};
+ struct serio *serio;
+
+ serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+ if (serio) {
+ memset(serio, 0, sizeof(struct serio));
+ serio->type = SERIO_8042;
+ serio->write = maceps2_write;
+ serio->open = maceps2_open;
+ serio->close = maceps2_close;
+ snprintf(serio->name, sizeof(serio->name), "MACE PS/2 port%d", idx);
+ snprintf(serio->phys, sizeof(serio->phys), "mace/serio%d", idx);
+ serio->port_data = &port_data[idx];
+ serio->dev.parent = &maceps2_device->dev;
+ }
+
+ return serio;
+}
-static struct serio maceps2_port1 =
-{
- .type = SERIO_8042,
- .open = maceps2_open,
- .close = maceps2_close,
- .write = maceps2_write,
- .name = "MACE PS/2 port1",
- .phys = "mace/serio1",
- .driver = &port1_data,
-};
static int __init maceps2_init(void)
{
- port0_data.port = &mace->perif.ps2.keyb;
- port0_data.irq = MACEISA_KEYB_IRQ;
- port1_data.port = &mace->perif.ps2.mouse;
- port1_data.irq = MACEISA_MOUSE_IRQ;
- serio_register_port(&maceps2_port0);
- serio_register_port(&maceps2_port1);
+ maceps2_device = platform_device_register_simple("maceps2", -1, NULL, 0);
+ if (IS_ERR(maceps2_device))
+ return PTR_ERR(maceps2_device);
+
+ port_data[0].port = &mace->perif.ps2.keyb;
+ port_data[0].irq = MACEISA_KEYB_IRQ;
+ port_data[1].port = &mace->perif.ps2.mouse;
+ port_data[1].irq = MACEISA_MOUSE_IRQ;
+
+ maceps2_port[0] = maceps2_allocate_port(0);
+ maceps2_port[1] = maceps2_allocate_port(1);
+ if (!maceps2_port[0] || !maceps2_port[1]) {
+ kfree(maceps2_port[0]);
+ kfree(maceps2_port[1]);
+ platform_device_unregister(maceps2_device);
+ return -ENOMEM;
+ }
+
+ serio_register_port(maceps2_port[0]);
+ serio_register_port(maceps2_port[1]);
return 0;
}
static void __exit maceps2_exit(void)
{
- serio_unregister_port(&maceps2_port0);
- serio_unregister_port(&maceps2_port1);
+ serio_unregister_port(maceps2_port[0]);
+ serio_unregister_port(maceps2_port[1]);
+ platform_device_unregister(maceps2_device);
}
module_init(maceps2_init);