Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 135 insertions, 0 deletions

diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h
new file mode 100644
index 000000000000..6dcf497bf46d
--- /dev/null
+++ b/include/scsi/scsi_transport_spi.h
@@ -0,0 +1,135 @@
+/* 
+ *  Parallel SCSI (SPI) transport specific attributes exported to sysfs.
+ *
+ *  Copyright (c) 2003 Silicon Graphics, Inc.  All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef SCSI_TRANSPORT_SPI_H
+#define SCSI_TRANSPORT_SPI_H
+
+#include <linux/config.h>
+#include <linux/transport_class.h>
+
+struct scsi_transport_template;
+
+struct spi_transport_attrs {
+	int period;		/* value in the PPR/SDTR command */
+	int offset;
+	unsigned int width:1;	/* 0 - narrow, 1 - wide */
+	unsigned int iu:1;	/* Information Units enabled */
+	unsigned int dt:1;	/* DT clocking enabled */
+	unsigned int qas:1;	/* Quick Arbitration and Selection enabled */
+	unsigned int wr_flow:1;	/* Write Flow control enabled */
+	unsigned int rd_strm:1;	/* Read streaming enabled */
+	unsigned int rti:1;	/* Retain Training Information */
+	unsigned int pcomp_en:1;/* Precompensation enabled */
+	unsigned int initial_dv:1; /* DV done to this target yet  */
+	unsigned long flags;	/* flags field for drivers to use */
+	/* Device Properties fields */
+	unsigned int support_sync:1; /* synchronous support */
+	unsigned int support_wide:1; /* wide support */
+	unsigned int support_dt:1; /* allows DT phases */
+	unsigned int support_dt_only; /* disallows ST phases */
+	unsigned int support_ius; /* support Information Units */
+	unsigned int support_qas; /* supports quick arbitration and selection */
+	/* Private Fields */
+	unsigned int dv_pending:1; /* Internal flag */
+	struct semaphore dv_sem; /* semaphore to serialise dv */
+};
+
+enum spi_signal_type {
+	SPI_SIGNAL_UNKNOWN = 1,
+	SPI_SIGNAL_SE,
+	SPI_SIGNAL_LVD,
+	SPI_SIGNAL_HVD,
+};
+
+struct spi_host_attrs {
+	enum spi_signal_type signalling;
+};
+
+/* accessor functions */
+#define spi_period(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->period)
+#define spi_offset(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->offset)
+#define spi_width(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->width)
+#define spi_iu(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->iu)
+#define spi_dt(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->dt)
+#define spi_qas(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->qas)
+#define spi_wr_flow(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->wr_flow)
+#define spi_rd_strm(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->rd_strm)
+#define spi_rti(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->rti)
+#define spi_pcomp_en(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->pcomp_en)
+#define spi_initial_dv(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->initial_dv)
+
+#define spi_support_sync(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_sync)
+#define spi_support_wide(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_wide)
+#define spi_support_dt(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_dt)
+#define spi_support_dt_only(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_dt_only)
+#define spi_support_ius(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_ius)
+#define spi_support_qas(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_qas)
+
+#define spi_flags(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->flags)
+#define spi_signalling(h)	(((struct spi_host_attrs *)(h)->shost_data)->signalling)
+
+
+
+/* The functions by which the transport class and the driver communicate */
+struct spi_function_template {
+	void	(*get_period)(struct scsi_target *);
+	void	(*set_period)(struct scsi_target *, int);
+	void	(*get_offset)(struct scsi_target *);
+	void	(*set_offset)(struct scsi_target *, int);
+	void	(*get_width)(struct scsi_target *);
+	void	(*set_width)(struct scsi_target *, int);
+	void	(*get_iu)(struct scsi_target *);
+	void	(*set_iu)(struct scsi_target *, int);
+	void	(*get_dt)(struct scsi_target *);
+	void	(*set_dt)(struct scsi_target *, int);
+	void	(*get_qas)(struct scsi_target *);
+	void	(*set_qas)(struct scsi_target *, int);
+	void	(*get_wr_flow)(struct scsi_target *);
+	void	(*set_wr_flow)(struct scsi_target *, int);
+	void	(*get_rd_strm)(struct scsi_target *);
+	void	(*set_rd_strm)(struct scsi_target *, int);
+	void	(*get_rti)(struct scsi_target *);
+	void	(*set_rti)(struct scsi_target *, int);
+	void	(*get_pcomp_en)(struct scsi_target *);
+	void	(*set_pcomp_en)(struct scsi_target *, int);
+	void	(*get_signalling)(struct Scsi_Host *);
+	void	(*set_signalling)(struct Scsi_Host *, enum spi_signal_type);
+	/* The driver sets these to tell the transport class it
+	 * wants the attributes displayed in sysfs.  If the show_ flag
+	 * is not set, the attribute will be private to the transport
+	 * class */
+	unsigned long	show_period:1;
+	unsigned long	show_offset:1;
+	unsigned long	show_width:1;
+	unsigned long	show_iu:1;
+	unsigned long	show_dt:1;
+	unsigned long	show_qas:1;
+	unsigned long	show_wr_flow:1;
+	unsigned long	show_rd_strm:1;
+	unsigned long	show_rti:1;
+	unsigned long	show_pcomp_en:1;
+};
+
+struct scsi_transport_template *spi_attach_transport(struct spi_function_template *);
+void spi_release_transport(struct scsi_transport_template *);
+void spi_schedule_dv_device(struct scsi_device *);
+void spi_dv_device(struct scsi_device *);
+void spi_display_xfer_agreement(struct scsi_target *);
+
+#endif /* SCSI_TRANSPORT_SPI_H */