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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/class/cdc-acm.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
-rw-r--r--drivers/usb/class/cdc-acm.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
new file mode 100644
index 000000000000..9009114e311b
--- /dev/null
+++ b/drivers/usb/class/cdc-acm.h
@@ -0,0 +1,82 @@
+/*
+ *
+ * Includes for cdc-acm.c
+ *
+ * Mainly take from usbnet's cdc-ether part
+ *
+ */
+
+/*
+ * CMSPAR, some architectures can't have space and mark parity.
+ */
+
+#ifndef CMSPAR
+#define CMSPAR 0
+#endif
+
+/*
+ * Major and minor numbers.
+ */
+
+#define ACM_TTY_MAJOR 166
+#define ACM_TTY_MINORS 32
+
+/*
+ * Requests.
+ */
+
+#define USB_RT_ACM (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
+
+/*
+ * Output control lines.
+ */
+
+#define ACM_CTRL_DTR 0x01
+#define ACM_CTRL_RTS 0x02
+
+/*
+ * Input control lines and line errors.
+ */
+
+#define ACM_CTRL_DCD 0x01
+#define ACM_CTRL_DSR 0x02
+#define ACM_CTRL_BRK 0x04
+#define ACM_CTRL_RI 0x08
+
+#define ACM_CTRL_FRAMING 0x10
+#define ACM_CTRL_PARITY 0x20
+#define ACM_CTRL_OVERRUN 0x40
+
+/*
+ * Internal driver structures.
+ */
+
+struct acm {
+ struct usb_device *dev; /* the corresponding usb device */
+ struct usb_interface *control; /* control interface */
+ struct usb_interface *data; /* data interface */
+ struct tty_struct *tty; /* the corresponding tty */
+ struct urb *ctrlurb, *readurb, *writeurb; /* urbs */
+ u8 *ctrl_buffer, *read_buffer, *write_buffer; /* buffers of urbs */
+ dma_addr_t ctrl_dma, read_dma, write_dma; /* dma handles of buffers */
+ struct usb_cdc_line_coding line; /* bits, stop, parity */
+ struct work_struct work; /* work queue entry for line discipline waking up */
+ struct tasklet_struct bh; /* rx processing */
+ spinlock_t throttle_lock; /* synchronize throtteling and read callback */
+ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
+ unsigned int ctrlout; /* output control lines (DTR, RTS) */
+ unsigned int writesize; /* max packet size for the output bulk endpoint */
+ unsigned int readsize,ctrlsize; /* buffer sizes for freeing */
+ unsigned int used; /* someone has this acm's device open */
+ unsigned int minor; /* acm minor number */
+ unsigned char throttle; /* throttled by tty layer */
+ unsigned char clocal; /* termios CLOCAL */
+ unsigned char ready_for_write; /* write urb can be used */
+ unsigned char resubmit_to_unthrottle; /* throtteling has disabled the read urb */
+ unsigned int ctrl_caps; /* control capabilities from the class specific header */
+};
+
+#define CDC_DATA_INTERFACE_TYPE 0x0a
+
+/* constants describing various quirks and errors */
+#define NO_UNION_NORMAL 1