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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | /* * 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 USB_INTERVALS_PER_SECOND 1000 /* Fallback USB interval and max packet size values */ #define LINE6_FALLBACK_INTERVAL 10 #define LINE6_FALLBACK_MAXPACKETSIZE 16 #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 line6usb driver */ int capabilities; int altsetting; unsigned ep_ctrl_r; unsigned ep_ctrl_w; unsigned ep_audio_r; unsigned ep_audio_w; }; /* Capability bits */ enum { /* device supports settings parameter via USB */ LINE6_CAP_CONTROL = 1 << 0, /* device supports PCM input/output via USB */ LINE6_CAP_PCM = 1 << 1, /* device support hardware monitoring */ LINE6_CAP_HWMON = 1 << 2, }; /* 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_line6 *line6); }; extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2, int size); extern int line6_read_data(struct usb_line6 *line6, unsigned address, void *data, unsigned datalen); extern int line6_read_serial_number(struct usb_line6 *line6, u32 *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 long 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, unsigned address, void *data, unsigned datalen); int line6_probe(struct usb_interface *interface, const struct usb_device_id *id, const char *driver_name, const struct line6_properties *properties, int (*private_init)(struct usb_line6 *, const struct usb_device_id *id), size_t data_size); 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 |