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path: root/drivers/usb/storage/alauda.c
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Diffstat (limited to 'drivers/usb/storage/alauda.c')
-rw-r--r--drivers/usb/storage/alauda.c192
1 files changed, 180 insertions, 12 deletions
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 8d3711a7ff0..67edc65acb8 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -31,6 +31,8 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/module.h>
+
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@@ -39,7 +41,79 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
-#include "alauda.h"
+
+MODULE_DESCRIPTION("Driver for Alauda-based card readers");
+MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>");
+MODULE_LICENSE("GPL");
+
+/*
+ * 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
+
+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 */
+};
#define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) )
#define LSB_of(s) ((s)&0xFF)
@@ -52,6 +126,48 @@
#define PBA_HI(pba) (pba >> 3)
#define PBA_ZONE(pba) (pba >> 11)
+static int init_alauda(struct us_data *us);
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+ vendorName, productName, useProtocol, useTransport, \
+ initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+
+struct usb_device_id alauda_usb_ids[] = {
+# include "unusual_alauda.h"
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, alauda_usb_ids);
+
+#undef UNUSUAL_DEV
+
+/*
+ * The flags table
+ */
+#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
+ vendor_name, product_name, use_protocol, use_transport, \
+ init_function, Flags) \
+{ \
+ .vendorName = vendor_name, \
+ .productName = product_name, \
+ .useProtocol = use_protocol, \
+ .useTransport = use_transport, \
+ .initFunction = init_function, \
+}
+
+static struct us_unusual_dev alauda_unusual_dev_list[] = {
+# include "unusual_alauda.h"
+ { } /* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
/*
* Media handling
*/
@@ -307,7 +423,8 @@ static int alauda_init_media(struct us_data *us)
data[0], data[1], data[2], data[3]);
media_info = alauda_card_find_id(data[1]);
if (media_info == NULL) {
- printk("alauda_init_media: Unrecognised media signature: "
+ printk(KERN_WARNING
+ "alauda_init_media: Unrecognised media signature: "
"%02X %02X %02X %02X\n",
data[0], data[1], data[2], data[3]);
return USB_STOR_TRANSPORT_ERROR;
@@ -518,7 +635,8 @@ static int alauda_read_map(struct us_data *us, unsigned int zone)
/* check even parity */
if (parity[data[6] ^ data[7]]) {
- printk("alauda_read_map: Bad parity in LBA for block %d"
+ printk(KERN_WARNING
+ "alauda_read_map: Bad parity in LBA for block %d"
" (%02X %02X)\n", i, data[6], data[7]);
pba_to_lba[i] = UNUSABLE;
continue;
@@ -538,13 +656,16 @@ static int alauda_read_map(struct us_data *us, unsigned int zone)
*/
if (lba_offset >= uzonesize) {
- printk("alauda_read_map: Bad low LBA %d for block %d\n",
+ printk(KERN_WARNING
+ "alauda_read_map: Bad low LBA %d for block %d\n",
lba_real, blocknum);
continue;
}
if (lba_to_pba[lba_offset] != UNDEF) {
- printk("alauda_read_map: LBA %d seen for PBA %d and %d\n",
+ printk(KERN_WARNING
+ "alauda_read_map: "
+ "LBA %d seen for PBA %d and %d\n",
lba_real, lba_to_pba[lba_offset], blocknum);
continue;
}
@@ -712,13 +833,15 @@ static int alauda_write_lba(struct us_data *us, u16 lba,
if (pba == 1) {
/* Maybe it is impossible to write to PBA 1.
Fake success, but don't do anything. */
- printk("alauda_write_lba: avoid writing to pba 1\n");
+ printk(KERN_WARNING
+ "alauda_write_lba: avoid writing to pba 1\n");
return USB_STOR_TRANSPORT_GOOD;
}
new_pba = alauda_find_unused_pba(&MEDIA_INFO(us), zone);
if (!new_pba) {
- printk("alauda_write_lba: Out of unused blocks\n");
+ printk(KERN_WARNING
+ "alauda_write_lba: Out of unused blocks\n");
return USB_STOR_TRANSPORT_ERROR;
}
@@ -818,7 +941,7 @@ static int alauda_read_data(struct us_data *us, unsigned long address,
len = min(sectors, blocksize) * (pagesize + 64);
buffer = kmalloc(len, GFP_NOIO);
if (buffer == NULL) {
- printk("alauda_read_data: Out of memory\n");
+ printk(KERN_WARNING "alauda_read_data: Out of memory\n");
return USB_STOR_TRANSPORT_ERROR;
}
@@ -911,7 +1034,7 @@ static int alauda_write_data(struct us_data *us, unsigned long address,
len = min(sectors, blocksize) * pagesize;
buffer = kmalloc(len, GFP_NOIO);
if (buffer == NULL) {
- printk("alauda_write_data: Out of memory\n");
+ printk(KERN_WARNING "alauda_write_data: Out of memory\n");
return USB_STOR_TRANSPORT_ERROR;
}
@@ -921,7 +1044,7 @@ static int alauda_write_data(struct us_data *us, unsigned long address,
*/
blockbuffer = kmalloc((pagesize + 64) * blocksize, GFP_NOIO);
if (blockbuffer == NULL) {
- printk("alauda_write_data: Out of memory\n");
+ printk(KERN_WARNING "alauda_write_data: Out of memory\n");
kfree(buffer);
return USB_STOR_TRANSPORT_ERROR;
}
@@ -991,7 +1114,7 @@ static void alauda_info_destructor(void *extra)
/*
* Initialize alauda_info struct and find the data-write endpoint
*/
-int init_alauda(struct us_data *us)
+static int init_alauda(struct us_data *us)
{
struct alauda_info *info;
struct usb_host_interface *altsetting = us->pusb_intf->cur_altsetting;
@@ -1013,7 +1136,7 @@ int init_alauda(struct us_data *us)
return USB_STOR_TRANSPORT_GOOD;
}
-int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
+static int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
{
int rc;
struct alauda_info *info = (struct alauda_info *) us->extra;
@@ -1121,3 +1244,48 @@ int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_FAILED;
}
+static int alauda_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct us_data *us;
+ int result;
+
+ result = usb_stor_probe1(&us, intf, id,
+ (id - alauda_usb_ids) + alauda_unusual_dev_list);
+ if (result)
+ return result;
+
+ us->transport_name = "Alauda Control/Bulk";
+ us->transport = alauda_transport;
+ us->transport_reset = usb_stor_Bulk_reset;
+ us->max_lun = 1;
+
+ result = usb_stor_probe2(us);
+ return result;
+}
+
+static struct usb_driver alauda_driver = {
+ .name = "ums-alauda",
+ .probe = alauda_probe,
+ .disconnect = usb_stor_disconnect,
+ .suspend = usb_stor_suspend,
+ .resume = usb_stor_resume,
+ .reset_resume = usb_stor_reset_resume,
+ .pre_reset = usb_stor_pre_reset,
+ .post_reset = usb_stor_post_reset,
+ .id_table = alauda_usb_ids,
+ .soft_unbind = 1,
+};
+
+static int __init alauda_init(void)
+{
+ return usb_register(&alauda_driver);
+}
+
+static void __exit alauda_exit(void)
+{
+ usb_deregister(&alauda_driver);
+}
+
+module_init(alauda_init);
+module_exit(alauda_exit);