diff options
Diffstat (limited to 'freebsd/sys/cam/cam_periph.h')
| -rw-r--r-- | freebsd/sys/cam/cam_periph.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/freebsd/sys/cam/cam_periph.h b/freebsd/sys/cam/cam_periph.h index d5a74a51..87f153c3 100644 --- a/freebsd/sys/cam/cam_periph.h +++ b/freebsd/sys/cam/cam_periph.h @@ -45,6 +45,7 @@ extern struct cam_periph *xpt_periph; extern struct periph_driver **periph_drivers; void periphdriver_register(void *); +int periphdriver_unregister(void *); void periphdriver_init(int level); #include <sys/module.h> @@ -56,8 +57,7 @@ void periphdriver_init(int level); periphdriver_register(data); \ break; \ case MOD_UNLOAD: \ - printf(#name " module unload - not possible for this module type\n"); \ - return EINVAL; \ + return (periphdriver_unregister(data)); \ default: \ return EOPNOTSUPP; \ } \ @@ -71,20 +71,26 @@ void periphdriver_init(int level); DECLARE_MODULE(name, name ## _mod, SI_SUB_DRIVERS, SI_ORDER_ANY); \ MODULE_DEPEND(name, cam, 1, 1, 1) -typedef void (periph_init_t)(void); /* - * Callback informing the peripheral driver - * it can perform it's initialization since - * the XPT is now fully initialized. - */ -typedef periph_init_t *periph_init_func_t; +/* + * Callback informing the peripheral driver it can perform it's + * initialization since the XPT is now fully initialized. + */ +typedef void (periph_init_t)(void); + +/* + * Callback requesting the peripheral driver to remove its instances + * and shutdown, if possible. + */ +typedef int (periph_deinit_t)(void); struct periph_driver { - periph_init_func_t init; - char *driver_name; + periph_init_t *init; + char *driver_name; TAILQ_HEAD(,cam_periph) units; u_int generation; u_int flags; #define CAM_PERIPH_DRV_EARLY 0x01 + periph_deinit_t *deinit; }; typedef enum { |