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path: root/drivers/usb/storage/usb.c
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Diffstat (limited to 'drivers/usb/storage/usb.c')
-rw-r--r--drivers/usb/storage/usb.c106
1 files changed, 92 insertions, 14 deletions
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 27016fd2cad..4becf495ca2 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -75,9 +75,6 @@
#ifdef CONFIG_USB_STORAGE_SDDR55
#include "sddr55.h"
#endif
-#ifdef CONFIG_USB_STORAGE_DPCM
-#include "dpcm.h"
-#endif
#ifdef CONFIG_USB_STORAGE_FREECOM
#include "freecom.h"
#endif
@@ -103,6 +100,7 @@
#include "cypress_atacb.h"
#endif
#include "sierra_ms.h"
+#include "option_ms.h"
/* Some informational data */
MODULE_AUTHOR("Matthew Dharm <mdharm-usb@one-eyed-alien.net>");
@@ -113,6 +111,10 @@ static unsigned int delay_use = 5;
module_param(delay_use, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(delay_use, "seconds to delay before using a new device");
+static char quirks[128];
+module_param_string(quirks, quirks, sizeof(quirks), S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(quirks, "supplemental list of device IDs and their quirks");
+
/*
* The entries in this table correspond, line for line,
@@ -126,6 +128,8 @@ MODULE_PARM_DESC(delay_use, "seconds to delay before using a new device");
{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin,bcdDeviceMax), \
.driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+#define COMPLIANT_DEV UNUSUAL_DEV
+
#define USUAL_DEV(useProto, useTrans, useType) \
{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
.driver_info = (USB_US_TYPE_STOR<<24) }
@@ -134,6 +138,7 @@ static struct usb_device_id storage_usb_ids [] = {
# include "unusual_devs.h"
#undef UNUSUAL_DEV
+#undef COMPLIANT_DEV
#undef USUAL_DEV
/* Terminating entry */
{ }
@@ -164,6 +169,8 @@ MODULE_DEVICE_TABLE (usb, storage_usb_ids);
.initFunction = init_function, \
}
+#define COMPLIANT_DEV UNUSUAL_DEV
+
#define USUAL_DEV(use_protocol, use_transport, use_type) \
{ \
.useProtocol = use_protocol, \
@@ -173,6 +180,7 @@ MODULE_DEVICE_TABLE (usb, storage_usb_ids);
static struct us_unusual_dev us_unusual_dev_list[] = {
# include "unusual_devs.h"
# undef UNUSUAL_DEV
+# undef COMPLIANT_DEV
# undef USUAL_DEV
/* Terminating entry */
@@ -464,13 +472,83 @@ static int associate_dev(struct us_data *us, struct usb_interface *intf)
US_DEBUGP("I/O buffer allocation failed\n");
return -ENOMEM;
}
+ return 0;
+}
- us->sensebuf = kmalloc(US_SENSE_SIZE, GFP_KERNEL);
- if (!us->sensebuf) {
- US_DEBUGP("Sense buffer allocation failed\n");
- return -ENOMEM;
+/* Works only for digits and letters, but small and fast */
+#define TOLOWER(x) ((x) | 0x20)
+
+/* Adjust device flags based on the "quirks=" module parameter */
+static void adjust_quirks(struct us_data *us)
+{
+ char *p;
+ u16 vid = le16_to_cpu(us->pusb_dev->descriptor.idVendor);
+ u16 pid = le16_to_cpu(us->pusb_dev->descriptor.idProduct);
+ unsigned f = 0;
+ unsigned int mask = (US_FL_SANE_SENSE | US_FL_FIX_CAPACITY |
+ US_FL_CAPACITY_HEURISTICS | US_FL_IGNORE_DEVICE |
+ US_FL_NOT_LOCKABLE | US_FL_MAX_SECTORS_64 |
+ US_FL_CAPACITY_OK | US_FL_IGNORE_RESIDUE |
+ US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT);
+
+ p = quirks;
+ while (*p) {
+ /* Each entry consists of VID:PID:flags */
+ if (vid == simple_strtoul(p, &p, 16) &&
+ *p == ':' &&
+ pid == simple_strtoul(p+1, &p, 16) &&
+ *p == ':')
+ break;
+
+ /* Move forward to the next entry */
+ while (*p) {
+ if (*p++ == ',')
+ break;
+ }
}
- return 0;
+ if (!*p) /* No match */
+ return;
+
+ /* Collect the flags */
+ while (*++p && *p != ',') {
+ switch (TOLOWER(*p)) {
+ case 'a':
+ f |= US_FL_SANE_SENSE;
+ break;
+ case 'c':
+ f |= US_FL_FIX_CAPACITY;
+ break;
+ case 'h':
+ f |= US_FL_CAPACITY_HEURISTICS;
+ break;
+ case 'i':
+ f |= US_FL_IGNORE_DEVICE;
+ break;
+ case 'l':
+ f |= US_FL_NOT_LOCKABLE;
+ break;
+ case 'm':
+ f |= US_FL_MAX_SECTORS_64;
+ break;
+ case 'o':
+ f |= US_FL_CAPACITY_OK;
+ break;
+ case 'r':
+ f |= US_FL_IGNORE_RESIDUE;
+ break;
+ case 's':
+ f |= US_FL_SINGLE_LUN;
+ break;
+ case 'w':
+ f |= US_FL_NO_WP_DETECT;
+ break;
+ /* Ignore unrecognized flag characters */
+ }
+ }
+ us->fflags = (us->fflags & ~mask) | f;
+ dev_info(&us->pusb_intf->dev, "Quirks match for "
+ "vid %04x pid %04x: %x\n",
+ vid, pid, f);
}
/* Find an unusual_dev descriptor (always succeeds in the current code) */
@@ -497,6 +575,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id)
idesc->bInterfaceProtocol :
unusual_dev->useTransport;
us->fflags = USB_US_ORIG_FLAGS(id->driver_info);
+ adjust_quirks(us);
if (us->fflags & US_FL_IGNORE_DEVICE) {
printk(KERN_INFO USB_STORAGE "device ignored\n");
@@ -562,7 +641,7 @@ static int get_transport(struct us_data *us)
case US_PR_CBI:
us->transport_name = "Control/Bulk/Interrupt";
- us->transport = usb_stor_CBI_transport;
+ us->transport = usb_stor_CB_transport;
us->transport_reset = usb_stor_CB_reset;
us->max_lun = 7;
break;
@@ -675,19 +754,19 @@ static int get_protocol(struct us_data *us)
case US_SC_8020:
us->protocol_name = "8020i";
- us->proto_handler = usb_stor_ATAPI_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;
case US_SC_QIC:
us->protocol_name = "QIC-157";
- us->proto_handler = usb_stor_qic157_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;
case US_SC_8070:
us->protocol_name = "8070i";
- us->proto_handler = usb_stor_ATAPI_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;
@@ -840,8 +919,6 @@ static void dissociate_dev(struct us_data *us)
{
US_DEBUGP("-- %s\n", __func__);
- kfree(us->sensebuf);
-
/* Free the device-related DMA-mapped buffers */
if (us->cr)
usb_buffer_free(us->pusb_dev, sizeof(*us->cr), us->cr,
@@ -1064,6 +1141,7 @@ static struct usb_driver usb_storage_driver = {
static int __init usb_stor_init(void)
{
int retval;
+
printk(KERN_INFO "Initializing USB Mass Storage driver...\n");
/* register the driver, return usb_register return code if error */