summaryrefslogtreecommitdiff
path: root/drivers/usb/class/usblp.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/usb/class/usblp.c
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/usb/class/usblp.c')
-rw-r--r--drivers/usb/class/usblp.c68
1 files changed, 43 insertions, 25 deletions
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index f38e875a3..071964c78 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -57,6 +57,7 @@
#include <linux/mutex.h>
#undef DEBUG
#include <linux/usb.h>
+#include <linux/usb/ch9.h>
#include <linux/ratelimit.h>
/*
@@ -79,12 +80,20 @@
#define IOCNR_SOFT_RESET 7
/* Get device_id string: */
#define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
-/* The following ioctls were added for http://hpoj.sourceforge.net: */
-/* Get two-int array:
- * [0]=current protocol (1=7/1/1, 2=7/1/2, 3=7/1/3),
- * [1]=supported protocol mask (mask&(1<<n)!=0 means 7/1/n supported): */
+/* The following ioctls were added for http://hpoj.sourceforge.net:
+ * Get two-int array:
+ * [0]=current protocol
+ * (1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3),
+ * [1]=supported protocol mask (mask&(1<<n)!=0 means
+ * USB_CLASS_PRINTER/1/n supported):
+ */
#define LPIOC_GET_PROTOCOLS(len) _IOC(_IOC_READ, 'P', IOCNR_GET_PROTOCOLS, len)
-/* Set protocol (arg: 1=7/1/1, 2=7/1/2, 3=7/1/3): */
+/*
+ * Set protocol
+ * (arg: 1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3):
+ */
#define LPIOC_SET_PROTOCOL _IOC(_IOC_WRITE, 'P', IOCNR_SET_PROTOCOL, 0)
/* Set channel number (HP Vendor-specific command): */
#define LPIOC_HP_SET_CHANNEL _IOC(_IOC_WRITE, 'P', IOCNR_HP_SET_CHANNEL, 0)
@@ -146,8 +155,10 @@ struct usblp {
int readcount; /* Counter for reads */
int ifnum; /* Interface number */
struct usb_interface *intf; /* The interface */
- /* Alternate-setting numbers and endpoints for each protocol
- * (7/1/{index=1,2,3}) that the device supports: */
+ /*
+ * Alternate-setting numbers and endpoints for each protocol
+ * (USB_CLASS_PRINTER/1/{index=1,2,3}) that the device supports:
+ */
struct {
int alt_setting;
struct usb_endpoint_descriptor *epwrite;
@@ -873,11 +884,11 @@ static int usblp_wwait(struct usblp *usblp, int nonblock)
add_wait_queue(&usblp->wwait, &waita);
for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
if (mutex_lock_interruptible(&usblp->mut)) {
rc = -EINTR;
break;
}
+ set_current_state(TASK_INTERRUPTIBLE);
rc = usblp_wtest(usblp, nonblock);
mutex_unlock(&usblp->mut);
if (rc <= 0)
@@ -1206,19 +1217,23 @@ abort_ret:
* but our requirements are too intricate for simple match to handle.
*
* The "proto_bias" option may be used to specify the preferred protocol
- * for all USB printers (1=7/1/1, 2=7/1/2, 3=7/1/3). If the device
- * supports the preferred protocol, then we bind to it.
+ * for all USB printers (1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3). If the device supports the preferred protocol,
+ * then we bind to it.
*
- * The best interface for us is 7/1/2, because it is compatible
- * with a stream of characters. If we find it, we bind to it.
+ * The best interface for us is USB_CLASS_PRINTER/1/2, because it
+ * is compatible with a stream of characters. If we find it, we bind to it.
*
* Note that the people from hpoj.sourceforge.net need to be able to
- * bind to 7/1/3 (MLC/1284.4), so we provide them ioctls for this purpose.
+ * bind to USB_CLASS_PRINTER/1/3 (MLC/1284.4), so we provide them ioctls
+ * for this purpose.
*
- * Failing 7/1/2, we look for 7/1/3, even though it's probably not
- * stream-compatible, because this matches the behaviour of the old code.
+ * Failing USB_CLASS_PRINTER/1/2, we look for USB_CLASS_PRINTER/1/3,
+ * even though it's probably not stream-compatible, because this matches
+ * the behaviour of the old code.
*
- * If nothing else, we bind to 7/1/1 - the unidirectional interface.
+ * If nothing else, we bind to USB_CLASS_PRINTER/1/1
+ * - the unidirectional interface.
*/
static int usblp_select_alts(struct usblp *usblp)
{
@@ -1236,7 +1251,8 @@ static int usblp_select_alts(struct usblp *usblp)
for (i = 0; i < if_alt->num_altsetting; i++) {
ifd = &if_alt->altsetting[i];
- if (ifd->desc.bInterfaceClass != 7 || ifd->desc.bInterfaceSubClass != 1)
+ if (ifd->desc.bInterfaceClass != USB_CLASS_PRINTER ||
+ ifd->desc.bInterfaceSubClass != 1)
if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS))
continue;
@@ -1262,8 +1278,10 @@ static int usblp_select_alts(struct usblp *usblp)
if (!epwrite || (ifd->desc.bInterfaceProtocol > 1 && !epread))
continue;
- /* Turn off reads for 7/1/1 (unidirectional) interfaces
- * and buggy bidirectional printers. */
+ /*
+ * Turn off reads for USB_CLASS_PRINTER/1/1 (unidirectional)
+ * interfaces and buggy bidirectional printers.
+ */
if (ifd->desc.bInterfaceProtocol == 1) {
epread = NULL;
} else if (usblp->quirks & USBLP_QUIRK_BIDIR) {
@@ -1406,12 +1424,12 @@ static int usblp_resume(struct usb_interface *intf)
}
static const struct usb_device_id usblp_ids[] = {
- { USB_DEVICE_INFO(7, 1, 1) },
- { USB_DEVICE_INFO(7, 1, 2) },
- { USB_DEVICE_INFO(7, 1, 3) },
- { USB_INTERFACE_INFO(7, 1, 1) },
- { USB_INTERFACE_INFO(7, 1, 2) },
- { USB_INTERFACE_INFO(7, 1, 3) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 1) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 2) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 3) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 1) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 2) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 3) },
{ USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */
{ } /* Terminating entry */
};