[PATCH] USB Storage: add alauda support

This patch adds another usb-storage subdriver, which supports two fairly
old dual-XD/SmartMedia reader-writers (USB1.1 devices).

This driver was written by Daniel Drake <dsd@gentoo.org> -- he notes
that he wrote this driver without specs, however a vendor-supplied GPL
driver for the previous generation of products ("sma03") did prove to be
quite useful, as did the sddr09 driver which also has to deal with
low-level physical block layout on SmartMedia.

The original patch has been reformed by me, as it clashed with the
libusual patches.

We really need to consolidate some of this common SmartMedia code, and
get together with the MTD guys to share it with them as well.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 100 insertions, 0 deletions

diff --git a/drivers/usb/storage/alauda.h b/drivers/usb/storage/alauda.h
new file mode 100644
index 00000000000..a700f87d080
--- /dev/null
+++ b/drivers/usb/storage/alauda.h
@@ -0,0 +1,100 @@
+/*
+ * Driver for Alauda-based card readers
+ *
+ * Current development and maintenance by:
+ *    (c) 2005 Daniel Drake <dsd@gentoo.org>
+ *
+ * See alauda.c for more explanation.
+ *
+ * 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, 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _USB_ALAUDA_H
+#define _USB_ALAUDA_H
+
+/*
+ * Status bytes
+ */
+#define ALAUDA_STATUS_ERROR		0x01
+#define ALAUDA_STATUS_READY		0x40
+
+/*
+ * Control opcodes (for request field)
+ */
+#define ALAUDA_GET_XD_MEDIA_STATUS	0x08
+#define ALAUDA_GET_SM_MEDIA_STATUS	0x98
+#define ALAUDA_ACK_XD_MEDIA_CHANGE	0x0a
+#define ALAUDA_ACK_SM_MEDIA_CHANGE	0x9a
+#define ALAUDA_GET_XD_MEDIA_SIG		0x86
+#define ALAUDA_GET_SM_MEDIA_SIG		0x96
+
+/*
+ * Bulk command identity (byte 0)
+ */
+#define ALAUDA_BULK_CMD			0x40
+
+/*
+ * Bulk opcodes (byte 1)
+ */
+#define ALAUDA_BULK_GET_REDU_DATA	0x85
+#define ALAUDA_BULK_READ_BLOCK		0x94
+#define ALAUDA_BULK_ERASE_BLOCK		0xa3
+#define ALAUDA_BULK_WRITE_BLOCK		0xb4
+#define ALAUDA_BULK_GET_STATUS2		0xb7
+#define ALAUDA_BULK_RESET_MEDIA		0xe0
+
+/*
+ * Port to operate on (byte 8)
+ */
+#define ALAUDA_PORT_XD			0x00
+#define ALAUDA_PORT_SM			0x01
+
+/*
+ * LBA and PBA are unsigned ints. Special values.
+ */
+#define UNDEF    0xffff
+#define SPARE    0xfffe
+#define UNUSABLE 0xfffd
+
+int init_alauda(struct us_data *us);
+int alauda_transport(struct scsi_cmnd *srb, struct us_data *us);
+
+struct alauda_media_info {
+	unsigned long capacity;		/* total media size in bytes */
+	unsigned int pagesize;		/* page size in bytes */
+	unsigned int blocksize;		/* number of pages per block */
+	unsigned int uzonesize;		/* number of usable blocks per zone */
+	unsigned int zonesize;		/* number of blocks per zone */
+	unsigned int blockmask;		/* mask to get page from address */
+
+	unsigned char pageshift;
+	unsigned char blockshift;
+	unsigned char zoneshift;
+
+	u16 **lba_to_pba;		/* logical to physical block map */
+	u16 **pba_to_lba;		/* physical to logical block map */
+};
+
+struct alauda_info {
+	struct alauda_media_info port[2];
+	int wr_ep;			/* endpoint to write data out of */
+
+	unsigned char sense_key;
+	unsigned long sense_asc;	/* additional sense code */
+	unsigned long sense_ascq;	/* additional sense code qualifier */
+};
+
+#endif
+