Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
new file mode 100644
index 0000000000..dcc63ff587
--- /dev/null
+++ b/drivers/s390/char/tape_std.h
@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *    standard tape device functions for ibm tapes.
+ *
+ *    Copyright IBM Corp. 2001, 2006
+ *    Author(s): Carsten Otte <cotte@de.ibm.com>
+ *		 Tuan Ngo-Anh <ngoanh@de.ibm.com>
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _TAPE_STD_H
+#define _TAPE_STD_H
+
+#include <asm/tape390.h>
+
+/*
+ * Biggest block size to handle. Currently 64K because we only build
+ * channel programs without data chaining.
+ */
+#define MAX_BLOCKSIZE   65535
+
+/*
+ * The CCW commands for the Tape type of command.
+ */
+#define INVALID_00		0x00	/* Invalid cmd */
+#define BACKSPACEBLOCK		0x27	/* Back Space block */
+#define BACKSPACEFILE		0x2f	/* Back Space file */
+#define DATA_SEC_ERASE		0x97	/* Data security erase */
+#define ERASE_GAP		0x17	/* Erase Gap */
+#define FORSPACEBLOCK		0x37	/* Forward space block */
+#define FORSPACEFILE		0x3F	/* Forward Space file */
+#define FORCE_STREAM_CNT	0xEB	/* Forced streaming count # */
+#define NOP			0x03	/* No operation	*/
+#define READ_FORWARD		0x02	/* Read forward */
+#define REWIND			0x07	/* Rewind */
+#define REWIND_UNLOAD		0x0F	/* Rewind and Unload */
+#define SENSE			0x04	/* Sense */
+#define NEW_MODE_SET		0xEB	/* Guess it is Mode set */
+#define WRITE_CMD		0x01	/* Write */
+#define WRITETAPEMARK		0x1F	/* Write Tape Mark */
+
+#define ASSIGN			0xB7	/* 3420 REJECT,3480 OK	*/
+#define CONTROL_ACCESS		0xE3	/* Set high speed */
+#define DIAG_MODE_SET		0x0B	/* 3420 NOP, 3480 REJECT */
+#define LOAD_DISPLAY		0x9F	/* 3420 REJECT,3480 OK */
+#define LOCATE			0x4F	/* 3420 REJ, 3480 NOP */
+#define LOOP_WRITE_TO_READ	0x8B	/* 3480 REJECT */
+#define MODE_SET_DB		0xDB	/* 3420 REJECT,3480 OK */
+#define MODE_SET_C3		0xC3	/* for 3420 */
+#define MODE_SET_CB		0xCB	/* for 3420 */
+#define MODE_SET_D3		0xD3	/* for 3420 */
+#define READ_BACKWARD		0x0C	/* */
+#define READ_BLOCK_ID		0x22	/* 3420 REJECT,3480 OK */
+#define READ_BUFFER		0x12	/* 3420 REJECT,3480 OK */
+#define READ_BUFF_LOG		0x24	/* 3420 REJECT,3480 OK */
+#define RELEASE			0xD4	/* 3420 NOP, 3480 REJECT */
+#define REQ_TRK_IN_ERROR	0x1B	/* 3420 NOP, 3480 REJECT */
+#define RESERVE			0xF4	/* 3420 NOP, 3480 REJECT */
+#define SENSE_GROUP_ID		0x34	/* 3420 REJECT,3480 OK */
+#define SENSE_ID		0xE4	/* 3420 REJECT,3480 OK */
+#define READ_DEV_CHAR		0x64	/* Read device characteristics */
+#define SET_DIAGNOSE		0x4B	/* 3420 NOP, 3480 REJECT */
+#define SET_GROUP_ID		0xAF	/* 3420 REJECT,3480 OK */
+#define SET_TAPE_WRITE_IMMED	0xC3	/* for 3480 */
+#define SUSPEND			0x5B	/* 3420 REJ, 3480 NOP */
+#define SYNC			0x43	/* Synchronize (flush buffer) */
+#define UNASSIGN		0xC7	/* 3420 REJECT,3480 OK */
+#define PERF_SUBSYS_FUNC	0x77	/* 3490 CMD */
+#define READ_CONFIG_DATA	0xFA	/* 3490 CMD */
+#define READ_MESSAGE_ID		0x4E	/* 3490 CMD */
+#define READ_SUBSYS_DATA	0x3E	/* 3490 CMD */
+#define SET_INTERFACE_ID	0x73	/* 3490 CMD */
+
+#define SENSE_COMMAND_REJECT		0x80
+#define SENSE_INTERVENTION_REQUIRED	0x40
+#define SENSE_BUS_OUT_CHECK		0x20
+#define SENSE_EQUIPMENT_CHECK		0x10
+#define SENSE_DATA_CHECK		0x08
+#define SENSE_OVERRUN			0x04
+#define SENSE_DEFERRED_UNIT_CHECK	0x02
+#define SENSE_ASSIGNED_ELSEWHERE	0x01
+
+#define SENSE_LOCATE_FAILURE		0x80
+#define SENSE_DRIVE_ONLINE		0x40
+#define SENSE_RESERVED			0x20
+#define SENSE_RECORD_SEQUENCE_ERR	0x10
+#define SENSE_BEGINNING_OF_TAPE		0x08
+#define SENSE_WRITE_MODE		0x04
+#define SENSE_WRITE_PROTECT		0x02
+#define SENSE_NOT_CAPABLE		0x01
+
+#define SENSE_CHANNEL_ADAPTER_CODE	0xE0
+#define SENSE_CHANNEL_ADAPTER_LOC	0x10
+#define SENSE_REPORTING_CU		0x08
+#define SENSE_AUTOMATIC_LOADER		0x04
+#define SENSE_TAPE_SYNC_MODE		0x02
+#define SENSE_TAPE_POSITIONING		0x01
+
+/* discipline functions */
+struct tape_request *tape_std_read_block(struct tape_device *, size_t);
+void tape_std_read_backward(struct tape_device *device,
+			    struct tape_request *request);
+struct tape_request *tape_std_write_block(struct tape_device *, size_t);
+
+/* Some non-mtop commands. */
+int tape_std_assign(struct tape_device *);
+int tape_std_unassign(struct tape_device *);
+int tape_std_read_block_id(struct tape_device *device, __u64 *id);
+int tape_std_display(struct tape_device *, struct display_struct *disp);
+int tape_std_terminate_write(struct tape_device *);
+
+/* Standard magnetic tape commands. */
+int tape_std_mtbsf(struct tape_device *, int);
+int tape_std_mtbsfm(struct tape_device *, int);
+int tape_std_mtbsr(struct tape_device *, int);
+int tape_std_mtcompression(struct tape_device *, int);
+int tape_std_mteom(struct tape_device *, int);
+int tape_std_mterase(struct tape_device *, int);
+int tape_std_mtfsf(struct tape_device *, int);
+int tape_std_mtfsfm(struct tape_device *, int);
+int tape_std_mtfsr(struct tape_device *, int);
+int tape_std_mtload(struct tape_device *, int);
+int tape_std_mtnop(struct tape_device *, int);
+int tape_std_mtoffl(struct tape_device *, int);
+int tape_std_mtreset(struct tape_device *, int);
+int tape_std_mtreten(struct tape_device *, int);
+int tape_std_mtrew(struct tape_device *, int);
+int tape_std_mtsetblk(struct tape_device *, int);
+int tape_std_mtunload(struct tape_device *, int);
+int tape_std_mtweof(struct tape_device *, int);
+
+/* Event handlers */
+void tape_std_process_eov(struct tape_device *);
+
+/* S390 tape types */
+enum s390_tape_type {
+        tape_3480,
+        tape_3490,
+        tape_3590,
+        tape_3592,
+};
+
+#endif // _TAPE_STD_H