This is a major rework of the ATA driver (ATAng)

Restructure the way ATA/ATAPI commands are processed, use a common
ata_request structure for both. This centralises the way requests
are handled so locking is much easier to handle.

The driver is now layered much more cleanly to seperate the lowlevel
HW access so it can be tailored to specific controllers without touching
the upper layers. This is needed to support some of the newer
semi-intelligent ATA controllers showing up.

The top level drivers (disk, ATAPI devices) are more or less still
the same with just corrections to use the new interface.

Pull ATA out from under Gaint now that locking can be done in a sane way.

Add support for a the National Geode SC1100. Thanks to Soekris engineering
for sponsoring a Soekris 4801 to make this support.

Fixed alot of small bugs in the chipset code for various chips now
we are around in that corner anyways.

1 files changed, 127 insertions, 0 deletions

diff --git a/sys/dev/ata/ata-commands.h b/sys/dev/ata/ata-commands.h
new file mode 100644
index 0000000..8b81b00
--- /dev/null
+++ b/sys/dev/ata/ata-commands.h
@@ -0,0 +1,127 @@
+/*-
+ * Copyright (c) 1998 - 2003 Søren Schmidt <sos@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification, immediately at the beginning of the file.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/* ATA commands */
+#define ATA_NOP				0x00	/* NOP command */
+#define		ATA_NF_FLUSHQUEUE	0x00	/* flush queued cmd's */
+#define		ATA_NF_AUTOPOLL		0x01	/* start autopoll function */
+#define ATA_ATAPI_RESET			0x08	/* reset ATAPI device */
+#define ATA_READ			0x20	/* read command */
+#define ATA_READ48			0x24	/* read command */
+#define ATA_READ_DMA48			0x25	/* read w/DMA command */
+#define ATA_READ_DMA_QUEUED48		0x26	/* read w/DMA QUEUED command */
+#define ATA_READ_MUL48			0x29	/* read multi command */
+#define ATA_WRITE			0x30	/* write command */
+#define ATA_WRITE48			0x34	/* write command */
+#define ATA_WRITE_DMA48			0x35	/* write w/DMA command */
+#define ATA_WRITE_DMA_QUEUED48		0x36	/* write w/DMA QUEUED command */
+#define ATA_WRITE_MUL48			0x39	/* write multi command */
+#define ATA_PACKET_CMD			0xa0	/* packet command */
+#define ATA_ATAPI_IDENTIFY		0xa1	/* get ATAPI params*/
+#define ATA_SERVICE			0xa2	/* service command */
+#define ATA_READ_MUL			0xc4	/* read multi command */
+#define ATA_WRITE_MUL			0xc5	/* write multi command */
+#define ATA_SET_MULTI			0xc6	/* set multi size command */
+#define ATA_READ_DMA_QUEUED		0xc7	/* read w/DMA QUEUED command */
+#define ATA_READ_DMA			0xc8	/* read w/DMA command */
+#define ATA_WRITE_DMA			0xca	/* write w/DMA command */
+#define ATA_WRITE_DMA_QUEUED		0xcc	/* write w/DMA QUEUED command */
+#define ATA_SLEEP			0xe6	/* sleep command */
+#define ATA_FLUSHCACHE			0xe7	/* flush cache to disk */
+#define ATA_FLUSHCACHE48		0xea	/* flush cache to disk */
+#define ATA_ATA_IDENTIFY		0xec	/* get ATA params */
+#define ATA_SETFEATURES			0xef	/* features command */
+#define		ATA_SF_SETXFER		0x03	/* set transfer mode */
+#define		ATA_SF_ENAB_WCACHE	0x02	/* enable write cache */
+#define		ATA_SF_DIS_WCACHE	0x82	/* disable write cache */
+#define		ATA_SF_ENAB_RCACHE	0xaa	/* enable readahead cache */
+#define		ATA_SF_DIS_RCACHE	0x55	/* disable readahead cache */
+#define		ATA_SF_ENAB_RELIRQ	0x5d	/* enable release interrupt */
+#define		ATA_SF_DIS_RELIRQ	0xdd	/* disable release interrupt */
+#define		ATA_SF_ENAB_SRVIRQ	0x5e	/* enable service interrupt */
+#define		ATA_SF_DIS_SRVIRQ	0xde	/* disable service interrupt */
+
+/* ATAPI commands */
+#define ATAPI_TEST_UNIT_READY		0x00	/* check if device is ready */
+#define ATAPI_REZERO			0x01	/* rewind */
+#define ATAPI_REQUEST_SENSE		0x03	/* get sense data */
+#define ATAPI_FORMAT			0x04	/* format unit */
+#define ATAPI_READ			0x08	/* read data */
+#define ATAPI_WRITE			0x0a	/* write data */
+#define ATAPI_WEOF			0x10	/* write filemark */
+#define		ATAPI_WF_WRITE		0x01
+#define ATAPI_SPACE			0x11	/* space command */
+#define		ATAPI_SP_FM		0x01
+#define		ATAPI_SP_EOD		0x03
+#define ATAPI_MODE_SELECT		0x15	/* mode select */
+#define ATAPI_ERASE			0x19	/* erase */
+#define ATAPI_MODE_SENSE		0x1a	/* mode sense */
+#define ATAPI_START_STOP		0x1b	/* start/stop unit */
+#define		ATAPI_SS_LOAD		0x01
+#define		ATAPI_SS_RETENSION	0x02
+#define		ATAPI_SS_EJECT		0x04
+#define ATAPI_PREVENT_ALLOW		0x1e	/* media removal */
+#define ATAPI_READ_FORMAT_CAPACITIES	0x23	/* get format capacities */
+#define ATAPI_READ_CAPACITY		0x25	/* get volume capacity */
+#define ATAPI_READ_BIG			0x28	/* read data */
+#define ATAPI_WRITE_BIG			0x2a	/* write data */
+#define ATAPI_LOCATE			0x2b	/* locate to position */
+#define ATAPI_READ_POSITION		0x34	/* read position */
+#define ATAPI_SYNCHRONIZE_CACHE		0x35	/* flush buf, close channel */
+#define ATAPI_WRITE_BUFFER		0x3b	/* write device buffer */
+#define ATAPI_READ_BUFFER		0x3c	/* read device buffer */
+#define ATAPI_READ_SUBCHANNEL		0x42	/* get subchannel info */
+#define ATAPI_READ_TOC			0x43	/* get table of contents */
+#define ATAPI_PLAY_10			0x45	/* play by lba */
+#define ATAPI_PLAY_MSF			0x47	/* play by MSF address */
+#define ATAPI_PLAY_TRACK		0x48	/* play by track number */
+#define ATAPI_PAUSE			0x4b	/* pause audio operation */
+#define ATAPI_READ_DISK_INFO		0x51	/* get disk info structure */
+#define ATAPI_READ_TRACK_INFO		0x52	/* get track info structure */
+#define ATAPI_RESERVE_TRACK		0x53	/* reserve track */
+#define ATAPI_SEND_OPC_INFO		0x54	/* send OPC structurek */
+#define ATAPI_MODE_SELECT_BIG		0x55	/* set device parameters */
+#define ATAPI_REPAIR_TRACK		0x58	/* repair track */
+#define ATAPI_READ_MASTER_CUE		0x59	/* read master CUE info */
+#define ATAPI_MODE_SENSE_BIG		0x5a	/* get device parameters */
+#define ATAPI_CLOSE_TRACK		0x5b	/* close track/session */
+#define ATAPI_READ_BUFFER_CAPACITY	0x5c	/* get buffer capicity */
+#define ATAPI_SEND_CUE_SHEET		0x5d	/* send CUE sheet */
+#define ATAPI_BLANK			0xa1	/* blank the media */
+#define ATAPI_SEND_KEY			0xa3	/* send DVD key structure */
+#define ATAPI_REPORT_KEY		0xa4	/* get DVD key structure */
+#define ATAPI_PLAY_12			0xa5	/* play by lba */
+#define ATAPI_LOAD_UNLOAD		0xa6	/* changer control command */
+#define ATAPI_READ_STRUCTURE		0xad	/* get DVD structure */
+#define ATAPI_PLAY_CD			0xb4	/* universal play command */
+#define ATAPI_SET_SPEED			0xbb	/* set drive speed */
+#define ATAPI_MECH_STATUS		0xbd	/* get changer status */
+#define ATAPI_READ_CD			0xbe	/* read data */
+#define ATAPI_POLL_DSC			0xff	/* poll DSC status bit */