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Diffstat (limited to 'drivers/staging/line6/driver.h')
| -rw-r--r-- | drivers/staging/line6/driver.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/drivers/staging/line6/driver.h b/drivers/staging/line6/driver.h new file mode 100644 index 000000000000..9908bfa6afaf --- /dev/null +++ b/drivers/staging/line6/driver.h @@ -0,0 +1,204 @@ +/* + * Line6 Linux USB driver - 0.8.0 + * + * Copyright (C) 2004-2009 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 "config.h" + +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <linux/wait.h> +#include <sound/core.h> + +#include "midi.h" + +#define DRIVER_NAME "line6usb" + +#define LINE6_TIMEOUT 1 +#define LINE6_MAX_DEVICES 8 +#define LINE6_BUFSIZE_LISTEN 32 +#define LINE6_MESSAGE_MAXLEN 256 + + +/* + Line6 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 MISSING_CASE \ + printk(KERN_ERR "line6usb driver bug: missing case in %s:%d\n", \ + __FILE__, __LINE__) + + +#define CHECK_RETURN(x) \ +do { \ + err = x; \ + if (err < 0) \ + return err; \ +} while (0) + + +extern const unsigned char line6_midi_id[3]; +extern struct usb_line6 *line6_devices[LINE6_MAX_DEVICES]; +extern struct workqueue_struct *line6_workqueue; + +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 Line6 devices. +*/ +struct line6_properties { + const char *name; + int device_bit; + int capabilities; +}; + +/** + Common data shared by all Line6 devices. + Corresponds to a pair of USB endpoints. +*/ +struct usb_line6 { + /** + USB device. + */ + struct usb_device *usbdev; + + /** + Product id. + */ + int product; + + /** + Properties. + */ + const struct line6_properties *properties; + + /** + Interface number. + */ + int interface_number; + + /** + Interval (ms). + */ + int interval; + + /** + Maximum size of USB packet. + */ + int max_packet_size; + + /** + Device representing the USB interface. + */ + struct device *ifcdev; + + /** + Line6 sound card data structure. + Each device has at least MIDI or PCM. + */ + struct snd_card *card; + + /** + Line6 PCM device data structure. + */ + struct snd_line6_pcm *line6pcm; + + /** + Line6 MIDI device data structure. + */ + struct snd_line6_midi *line6midi; + + /** + USB endpoint for listening to control commands. + */ + int ep_control_read; + + /** + USB endpoint for writing control commands. + */ + int ep_control_write; + + /** + 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; +}; + + +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 ssize_t line6_nop_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count); +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_program(struct usb_line6 *line6, int value); +extern int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, + int size); +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 int line6_transmit_parameter(struct usb_line6 *line6, int param, + int value); +extern int line6_write_data(struct usb_line6 *line6, int address, void *data, + size_t datalen); +extern void line6_write_hexdump(struct usb_line6 *line6, char dir, + const unsigned char *buffer, int size); + + +#endif |