diff options
Diffstat (limited to 'include/linux/parport.h')
| -rw-r--r-- | include/linux/parport.h | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/include/linux/parport.h b/include/linux/parport.h index c22f12547..58e3c64c6 100644 --- a/include/linux/parport.h +++ b/include/linux/parport.h @@ -13,6 +13,7 @@ #include <linux/wait.h> #include <linux/irqreturn.h> #include <linux/semaphore.h> +#include <linux/device.h> #include <asm/ptrace.h> #include <uapi/linux/parport.h> @@ -145,6 +146,8 @@ struct pardevice { unsigned int flags; struct pardevice *next; struct pardevice *prev; + struct device dev; + bool devmodel; struct parport_state *state; /* saved status over preemption */ wait_queue_head_t wait_q; unsigned long int time; @@ -156,6 +159,8 @@ struct pardevice { void * sysctl_table; }; +#define to_pardevice(n) container_of(n, struct pardevice, dev) + /* IEEE1284 information */ /* IEEE1284 phases. These are exposed to userland through ppdev IOCTL @@ -195,7 +200,7 @@ struct parport { * This may unfortulately be null if the * port has a legacy driver. */ - + struct device bus_dev; /* to link with the bus */ struct parport *physport; /* If this is a non-default mux parport, i.e. we're a clone of a real @@ -245,15 +250,26 @@ struct parport { struct parport *slaves[3]; }; +#define to_parport_dev(n) container_of(n, struct parport, bus_dev) + #define DEFAULT_SPIN_TIME 500 /* us */ struct parport_driver { const char *name; void (*attach) (struct parport *); void (*detach) (struct parport *); + void (*match_port)(struct parport *); + int (*probe)(struct pardevice *); + struct device_driver driver; + bool devmodel; struct list_head list; }; +#define to_parport_driver(n) container_of(n, struct parport_driver, driver) + +int parport_bus_init(void); +void parport_bus_exit(void); + /* parport_register_port registers a new parallel port at the given address (if one does not already exist) and returns a pointer to it. This entails claiming the I/O region, IRQ and DMA. NULL is returned @@ -272,10 +288,20 @@ void parport_announce_port (struct parport *port); extern void parport_remove_port(struct parport *port); /* Register a new high-level driver. */ -extern int parport_register_driver (struct parport_driver *); + +int __must_check __parport_register_driver(struct parport_driver *, + struct module *, + const char *mod_name); +/* + * parport_register_driver must be a macro so that KBUILD_MODNAME can + * be expanded + */ +#define parport_register_driver(driver) \ + __parport_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) /* Unregister a high-level driver. */ extern void parport_unregister_driver (struct parport_driver *); +void parport_unregister_driver(struct parport_driver *); /* If parport_register_driver doesn't fit your needs, perhaps * parport_find_xxx does. */ @@ -288,6 +314,15 @@ extern irqreturn_t parport_irq_handler(int irq, void *dev_id); /* Reference counting for ports. */ extern struct parport *parport_get_port (struct parport *); extern void parport_put_port (struct parport *); +void parport_del_port(struct parport *); + +struct pardev_cb { + int (*preempt)(void *); + void (*wakeup)(void *); + void *private; + void (*irq_func)(void *); + unsigned int flags; +}; /* parport_register_device declares that a device is connected to a port, and tells the kernel all it needs to know. @@ -301,6 +336,10 @@ struct pardevice *parport_register_device(struct parport *port, void (*irq_func)(void *), int flags, void *handle); +struct pardevice * +parport_register_dev_model(struct parport *port, const char *name, + const struct pardev_cb *par_dev_cb, int cnt); + /* parport_unregister unlinks a device from the chain. */ extern void parport_unregister_device(struct pardevice *dev); |