#include <asm/hypervisor.h>
#include <asm/spitfire.h>
-#include <asm/vdev.h>
-#include <asm/oplib.h>
+#include <asm/prom.h>
+#include <asm/of_device.h>
#include <asm/irq.h>
#if defined(CONFIG_MAGIC_SYSRQ)
static int hung_up = 0;
-static struct tty_struct *receive_chars(struct uart_port *port, struct pt_regs *regs)
+static struct tty_struct *receive_chars(struct uart_port *port)
{
struct tty_struct *tty = NULL;
int saw_console_brk = 0;
}
if (tty == NULL) {
- uart_handle_sysrq_char(port, c, regs);
+ uart_handle_sysrq_char(port, c);
continue;
}
flag = TTY_BREAK;
}
- if (uart_handle_sysrq_char(port, c, regs))
+ if (uart_handle_sysrq_char(port, c))
continue;
if ((port->ignore_status_mask & IGNORE_ALL) ||
uart_write_wakeup(port);
}
-static irqreturn_t sunhv_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunhv_interrupt(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
struct tty_struct *tty;
unsigned long flags;
spin_lock_irqsave(&port->lock, flags);
- tty = receive_chars(port, regs);
+ tty = receive_chars(port);
transmit_chars(port);
spin_unlock_irqrestore(&port->lock, flags);
}
/* port->lock is not held. */
-static void sunhv_set_termios(struct uart_port *port, struct termios *termios,
- struct termios *old)
+static void sunhv_set_termios(struct uart_port *port, struct ktermios *termios,
+ struct ktermios *old)
{
unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);
unsigned int quot = uart_get_divisor(port, baud);
static struct uart_driver sunhv_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
return &sunhv_console;
}
-static int __init hv_console_compatible(char *buf, int len)
-{
- while (len) {
- int this_len;
-
- if (!strcmp(buf, "qcn"))
- return 1;
-
- this_len = strlen(buf) + 1;
-
- buf += this_len;
- len -= this_len;
- }
-
- return 0;
-}
-
-static unsigned int __init get_interrupt(void)
-{
- const char *cons_str = "console";
- const char *compat_str = "compatible";
- int node = prom_getchild(sun4v_vdev_root);
- char buf[64];
- int err, len;
-
- node = prom_searchsiblings(node, cons_str);
- if (!node)
- return 0;
-
- len = prom_getproplen(node, compat_str);
- if (len == 0 || len == -1)
- return 0;
-
- err = prom_getproperty(node, compat_str, buf, 64);
- if (err == -1)
- return 0;
-
- if (!hv_console_compatible(buf, len))
- return 0;
-
- /* Ok, the this is the OBP node for the sun4v hypervisor
- * console device. Decode the interrupt.
- */
- return sun4v_vdev_device_interrupt(node);
-}
-
-static int __init sunhv_init(void)
+static int __devinit hv_probe(struct of_device *op, const struct of_device_id *match)
{
struct uart_port *port;
- int ret;
+ int err;
- if (tlb_type != hypervisor)
+ if (op->irqs[0] == 0xffffffff)
return -ENODEV;
- port = kmalloc(sizeof(struct uart_port), GFP_KERNEL);
+ port = kzalloc(sizeof(struct uart_port), GFP_KERNEL);
if (unlikely(!port))
return -ENOMEM;
- memset(port, 0, sizeof(struct uart_port));
+ sunhv_port = port;
port->line = 0;
port->ops = &sunhv_pops;
port->type = PORT_SUNHV;
port->uartclk = ( 29491200 / 16 ); /* arbitrary */
- /* Set this just to make uart_configure_port() happy. */
port->membase = (unsigned char __iomem *) __pa(port);
- port->irq = get_interrupt();
- if (!port->irq) {
- kfree(port);
- return -ENODEV;
- }
+ port->irq = op->irqs[0];
+
+ port->dev = &op->dev;
sunhv_reg.minor = sunserial_current_minor;
sunhv_reg.nr = 1;
- ret = uart_register_driver(&sunhv_reg);
- if (ret < 0) {
- printk(KERN_ERR "SUNHV: uart_register_driver() failed %d\n",
- ret);
- kfree(port);
-
- return ret;
- }
+ err = uart_register_driver(&sunhv_reg);
+ if (err)
+ goto out_free_port;
sunhv_reg.tty_driver->name_base = sunhv_reg.minor - 64;
sunserial_current_minor += 1;
sunhv_reg.cons = SUNHV_CONSOLE();
- sunhv_port = port;
+ err = uart_add_one_port(&sunhv_reg, port);
+ if (err)
+ goto out_unregister_driver;
- ret = uart_add_one_port(&sunhv_reg, port);
- if (ret < 0) {
- printk(KERN_ERR "SUNHV: uart_add_one_port() failed %d\n", ret);
- sunserial_current_minor -= 1;
- uart_unregister_driver(&sunhv_reg);
- kfree(port);
- sunhv_port = NULL;
- return -ENODEV;
- }
+ err = request_irq(port->irq, sunhv_interrupt, 0, "hvcons", port);
+ if (err)
+ goto out_remove_port;
- if (request_irq(port->irq, sunhv_interrupt,
- SA_SHIRQ, "serial(sunhv)", port)) {
- printk(KERN_ERR "sunhv: Cannot register IRQ\n");
- uart_remove_one_port(&sunhv_reg, port);
- sunserial_current_minor -= 1;
- uart_unregister_driver(&sunhv_reg);
- kfree(port);
- sunhv_port = NULL;
- return -ENODEV;
- }
+ dev_set_drvdata(&op->dev, port);
return 0;
+
+out_remove_port:
+ uart_remove_one_port(&sunhv_reg, port);
+
+out_unregister_driver:
+ sunserial_current_minor -= 1;
+ uart_unregister_driver(&sunhv_reg);
+
+out_free_port:
+ kfree(port);
+ sunhv_port = NULL;
+ return err;
}
-static void __exit sunhv_exit(void)
+static int __devexit hv_remove(struct of_device *dev)
{
- struct uart_port *port = sunhv_port;
-
- BUG_ON(!port);
+ struct uart_port *port = dev_get_drvdata(&dev->dev);
free_irq(port->irq, port);
uart_remove_one_port(&sunhv_reg, port);
- sunserial_current_minor -= 1;
+ sunserial_current_minor -= 1;
uart_unregister_driver(&sunhv_reg);
- kfree(sunhv_port);
+ kfree(port);
sunhv_port = NULL;
+
+ dev_set_drvdata(&dev->dev, NULL);
+
+ return 0;
+}
+
+static struct of_device_id hv_match[] = {
+ {
+ .name = "console",
+ .compatible = "qcn",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, hv_match);
+
+static struct of_platform_driver hv_driver = {
+ .name = "hv",
+ .match_table = hv_match,
+ .probe = hv_probe,
+ .remove = __devexit_p(hv_remove),
+};
+
+static int __init sunhv_init(void)
+{
+ if (tlb_type != hypervisor)
+ return -ENODEV;
+
+ return of_register_driver(&hv_driver, &of_bus_type);
+}
+
+static void __exit sunhv_exit(void)
+{
+ of_unregister_driver(&hv_driver);
}
module_init(sunhv_init);
module_exit(sunhv_exit);
MODULE_AUTHOR("David S. Miller");
-MODULE_DESCRIPTION("SUN4V Hypervisor console driver")
+MODULE_DESCRIPTION("SUN4V Hypervisor console driver");
+MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
git.openpandora.org / pandora-kernel.git / blobdiff