1 files changed, 195 insertions, 0 deletions

diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
new file mode 100644
index 000000000000..efd58ac3215b
--- /dev/null
+++ b/sound/usb/line6/driver.h
@@ -0,0 +1,195 @@
+/*
+ * Line 6 Linux USB driver
+ *
+ * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
+ *
+ *      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, version 2.
+ *
+ */
+
+#ifndef DRIVER_H
+#define DRIVER_H
+
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+
+#include "midi.h"
+
+#define DRIVER_NAME "line6usb"
+
+#define LINE6_TIMEOUT 1
+#define LINE6_BUFSIZE_LISTEN 32
+#define LINE6_MESSAGE_MAXLEN 256
+
+/*
+        Line 6 MIDI control commands
+*/
+#define LINE6_PARAM_CHANGE   0xb0
+#define LINE6_PROGRAM_CHANGE 0xc0
+#define LINE6_SYSEX_BEGIN    0xf0
+#define LINE6_SYSEX_END      0xf7
+#define LINE6_RESET          0xff
+
+/*
+        MIDI channel for messages initiated by the host
+        (and eventually echoed back by the device)
+*/
+#define LINE6_CHANNEL_HOST   0x00
+
+/*
+        MIDI channel for messages initiated by the device
+*/
+#define LINE6_CHANNEL_DEVICE 0x02
+
+#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */
+
+#define LINE6_CHANNEL_MASK 0x0f
+
+#define CHECK_STARTUP_PROGRESS(x, n)    \
+do {                                    \
+        if ((x) >= (n))                 \
+                return;                 \
+        x = (n);                        \
+} while (0)
+
+extern const unsigned char line6_midi_id[3];
+
+static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
+static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
+
+/**
+         Common properties of Line 6 devices.
+*/
+struct line6_properties {
+        /**
+                 Card id string (maximum 16 characters).
+                 This can be used to address the device in ALSA programs as
+                 "default:CARD=<id>"
+        */
+        const char *id;
+
+        /**
+                 Card short name (maximum 32 characters).
+        */
+        const char *name;
+
+        /**
+                 Bit vector defining this device's capabilities in the
+                 line6usb driver.
+        */
+        int capabilities;
+
+        int altsetting;
+
+        unsigned ep_ctrl_r;
+        unsigned ep_ctrl_w;
+        unsigned ep_audio_r;
+        unsigned ep_audio_w;
+};
+
+/**
+         Common data shared by all Line 6 devices.
+         Corresponds to a pair of USB endpoints.
+*/
+struct usb_line6 {
+        /**
+                 USB device.
+        */
+        struct usb_device *usbdev;
+
+        /**
+                 Properties.
+        */
+        const struct line6_properties *properties;
+
+        /**
+                 Interval (ms).
+        */
+        int interval;
+
+        /**
+                 Maximum size of USB packet.
+        */
+        int max_packet_size;
+
+        /**
+                 Device representing the USB interface.
+        */
+        struct device *ifcdev;
+
+        /**
+                 Line 6 sound card data structure.
+                 Each device has at least MIDI or PCM.
+        */
+        struct snd_card *card;
+
+        /**
+                 Line 6 PCM device data structure.
+        */
+        struct snd_line6_pcm *line6pcm;
+
+        /**
+                 Line 6 MIDI device data structure.
+        */
+        struct snd_line6_midi *line6midi;
+
+        /**
+                 URB for listening to PODxt Pro control endpoint.
+        */
+        struct urb *urb_listen;
+
+        /**
+                 Buffer for listening to PODxt Pro control endpoint.
+        */
+        unsigned char *buffer_listen;
+
+        /**
+                 Buffer for message to be processed.
+        */
+        unsigned char *buffer_message;
+
+        /**
+                 Length of message to be processed.
+        */
+        int message_length;
+
+        void (*process_message)(struct usb_line6 *);
+        void (*disconnect)(struct usb_interface *);
+};
+
+extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
+                                      int code2, int size);
+extern ssize_t line6_nop_read(struct device *dev,
+                              struct device_attribute *attr, char *buf);
+extern int line6_read_data(struct usb_line6 *line6, int address, void *data,
+                           size_t datalen);
+extern int line6_read_serial_number(struct usb_line6 *line6,
+                                    int *serial_number);
+extern int line6_send_raw_message_async(struct usb_line6 *line6,
+                                        const char *buffer, int size);
+extern int line6_send_sysex_message(struct usb_line6 *line6,
+                                    const char *buffer, int size);
+extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr,
+                             const char *buf, size_t count);
+extern void line6_start_timer(struct timer_list *timer, unsigned int msecs,
+                              void (*function)(unsigned long),
+                              unsigned long data);
+extern int line6_version_request_async(struct usb_line6 *line6);
+extern int line6_write_data(struct usb_line6 *line6, int address, void *data,
+                            size_t datalen);
+
+int line6_probe(struct usb_interface *interface,
+                struct usb_line6 *line6,
+                const struct line6_properties *properties,
+                int (*private_init)(struct usb_interface *, struct usb_line6 *));
+void line6_disconnect(struct usb_interface *interface);
+
+#ifdef CONFIG_PM
+int line6_suspend(struct usb_interface *interface, pm_message_t message);
+int line6_resume(struct usb_interface *interface);
+#endif
+
+#endif