Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-s390/ccwdev.h b/include/asm-s390/ccwdev.h
new file mode 100644
index 0000000..3eb231a
--- /dev/null
+++ b/include/asm-s390/ccwdev.h
@@ -0,0 +1,192 @@
+/*
+ * include/asm-s390/ccwdev.h
+ * include/asm-s390x/ccwdev.h
+ *
+ * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s): Arnd Bergmann <arndb@de.ibm.com>
+ *
+ * Interface for CCW device drivers
+ */
+#ifndef _S390_CCWDEV_H_
+#define _S390_CCWDEV_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+/* structs from asm/cio.h */
+struct irb;
+struct ccw1;
+
+/* simplified initializers for struct ccw_device:
+ * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one
+ * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */
+#define CCW_DEVICE(cu, cum) \
+ .cu_type=(cu), .cu_model=(cum), \
+ .match_flags=(CCW_DEVICE_ID_MATCH_CU_TYPE \
+ | (cum ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0))
+
+#define CCW_DEVICE_DEVTYPE(cu, cum, dev, devm) \
+ .cu_type=(cu), .cu_model=(cum), .dev_type=(dev), .dev_model=(devm),\
+ .match_flags=CCW_DEVICE_ID_MATCH_CU_TYPE \
+ | ((cum) ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0) \
+ | CCW_DEVICE_ID_MATCH_DEVICE_TYPE \
+ | ((devm) ? CCW_DEVICE_ID_MATCH_DEVICE_MODEL : 0)
+
+/* scan through an array of device ids and return the first
+ * entry that matches the device.
+ *
+ * the array must end with an entry containing zero match_flags
+ */
+static inline const struct ccw_device_id *
+ccw_device_id_match(const struct ccw_device_id *array,
+ const struct ccw_device_id *match)
+{
+ const struct ccw_device_id *id = array;
+
+ for (id = array; id->match_flags; id++) {
+ if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_TYPE)
+ && (id->cu_type != match->cu_type))
+ continue;
+
+ if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_MODEL)
+ && (id->cu_model != match->cu_model))
+ continue;
+
+ if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_TYPE)
+ && (id->dev_type != match->dev_type))
+ continue;
+
+ if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_MODEL)
+ && (id->dev_model != match->dev_model))
+ continue;
+
+ return id;
+ }
+
+ return 0;
+}
+
+/* The struct ccw device is our replacement for the globally accessible
+ * ioinfo array. ioinfo will mutate into a subchannel device later.
+ *
+ * Reference: Documentation/s390/driver-model.txt */
+struct ccw_device {
+ spinlock_t *ccwlock;
+ struct ccw_device_private *private; /* cio private information */
+ struct ccw_device_id id; /* id of this device, driver_info is
+ set by ccw_find_driver */
+ struct ccw_driver *drv; /* */
+ struct device dev; /* */
+ int online;
+ /* This is sick, but a driver can have different interrupt handlers
+ for different ccw_devices (multi-subchannel drivers)... */
+ void (*handler) (struct ccw_device *, unsigned long, struct irb *);
+};
+
+
+/* Each ccw driver registers with the ccw root bus */
+struct ccw_driver {
+ struct module *owner; /* for automatic MOD_INC_USE_COUNT */
+ struct ccw_device_id *ids; /* probe driver with these devs */
+ int (*probe) (struct ccw_device *); /* ask driver to probe dev */
+ void (*remove) (struct ccw_device *);
+ /* device is no longer available */
+ int (*set_online) (struct ccw_device *);
+ int (*set_offline) (struct ccw_device *);
+ int (*notify) (struct ccw_device *, int);
+ struct device_driver driver; /* higher level structure, don't init
+ this from your driver */
+ char *name;
+};
+
+extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv,
+ const char *bus_id);
+
+/* devices drivers call these during module load and unload.
+ * When a driver is registered, its probe method is called
+ * when new devices for its type pop up */
+extern int ccw_driver_register (struct ccw_driver *driver);
+extern void ccw_driver_unregister (struct ccw_driver *driver);
+
+struct ccw1;
+
+extern int ccw_device_set_options(struct ccw_device *, unsigned long);
+
+/* Allow for i/o completion notification after primary interrupt status. */
+#define CCWDEV_EARLY_NOTIFICATION 0x0001
+/* Report all interrupt conditions. */
+#define CCWDEV_REPORT_ALL 0x0002
+/* Try to perform path grouping. */
+#define CCWDEV_DO_PATHGROUP 0x0004
+/* Allow forced onlining of boxed devices. */
+#define CCWDEV_ALLOW_FORCE 0x0008
+
+/*
+ * ccw_device_start()
+ *
+ * Start a S/390 channel program. When the interrupt arrives, the
+ * IRQ handler is called, either immediately, delayed (dev-end missing,
+ * or sense required) or never (no IRQ handler registered).
+ * Depending on the action taken, ccw_device_start() returns:
+ * 0 - Success
+ * -EBUSY - Device busy, or status pending
+ * -ENODEV - Device not operational
+ * -EINVAL - Device invalid for operation
+ */
+extern int ccw_device_start(struct ccw_device *, struct ccw1 *,
+ unsigned long, __u8, unsigned long);
+/*
+ * ccw_device_start_timeout()
+ *
+ * This function notifies the device driver if the channel program has not
+ * completed during the specified time. If a timeout occurs, the channel
+ * program is terminated via xsch(), hsch() or csch().
+ */
+extern int ccw_device_start_timeout(struct ccw_device *, struct ccw1 *,
+ unsigned long, __u8, unsigned long, int);
+/*
+ * ccw_device_start_key()
+ * ccw_device_start_key_timeout()
+ *
+ * Same as ccw_device_start() and ccw_device_start_timeout(), except a
+ * storage key != default key can be provided for the I/O.
+ */
+extern int ccw_device_start_key(struct ccw_device *, struct ccw1 *,
+ unsigned long, __u8, __u8, unsigned long);
+extern int ccw_device_start_timeout_key(struct ccw_device *, struct ccw1 *,
+ unsigned long, __u8, __u8,
+ unsigned long, int);
+
+
+extern int ccw_device_resume(struct ccw_device *);
+extern int ccw_device_halt(struct ccw_device *, unsigned long);
+extern int ccw_device_clear(struct ccw_device *, unsigned long);
+
+extern int read_dev_chars(struct ccw_device *cdev, void **buffer, int length);
+extern int read_conf_data(struct ccw_device *cdev, void **buffer, int *length);
+extern int read_conf_data_lpm(struct ccw_device *cdev, void **buffer,
+ int *length, __u8 lpm);
+
+extern int ccw_device_set_online(struct ccw_device *cdev);
+extern int ccw_device_set_offline(struct ccw_device *cdev);
+
+
+extern struct ciw *ccw_device_get_ciw(struct ccw_device *, __u32 cmd);
+extern __u8 ccw_device_get_path_mask(struct ccw_device *);
+
+#define get_ccwdev_lock(x) (x)->ccwlock
+
+#define to_ccwdev(n) container_of(n, struct ccw_device, dev)
+#define to_ccwdrv(n) container_of(n, struct ccw_driver, driver)
+
+extern struct ccw_device *ccw_device_probe_console(void);
+
+// FIXME: these have to go
+extern int _ccw_device_get_device_number(struct ccw_device *);
+extern int _ccw_device_get_subchannel_number(struct ccw_device *);
+
+extern struct device *s390_root_dev_register(const char *);
+extern void s390_root_dev_unregister(struct device *);
+
+extern void *ccw_device_get_chp_desc(struct ccw_device *, int);
+#endif /* _S390_CCWDEV_H_ */