ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/sound/usb/line6/driver.h b/marvell/linux/sound/usb/line6/driver.h
new file mode 100644
index 0000000..890c239
--- /dev/null
+++ b/marvell/linux/sound/usb/line6/driver.h
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Line 6 Linux USB driver
+ *
+ * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
+ */
+
+#ifndef DRIVER_H
+#define DRIVER_H
+
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/kfifo.h>
+#include <sound/core.h>
+
+#include "midi.h"
+
+/* USB 1.1 speed configuration */
+#define USB_LOW_INTERVALS_PER_SECOND 1000
+#define USB_LOW_ISO_BUFFERS 2
+
+/* USB 2.0+ speed configuration */
+#define USB_HIGH_INTERVALS_PER_SECOND 8000
+#define USB_HIGH_ISO_BUFFERS 16
+
+/* Fallback USB interval and max packet size values */
+#define LINE6_FALLBACK_INTERVAL 10
+#define LINE6_FALLBACK_MAXPACKETSIZE 16
+
+#define LINE6_TIMEOUT 1000
+#define LINE6_BUFSIZE_LISTEN 64
+#define LINE6_MIDI_MESSAGE_MAXLEN 256
+
+#define LINE6_RAW_MESSAGES_MAXCOUNT_ORDER 7
+/* 4k packets are common, BUFSIZE * MAXCOUNT should be bigger... */
+#define LINE6_RAW_MESSAGES_MAXCOUNT (1 << LINE6_RAW_MESSAGES_MAXCOUNT_ORDER)
+
+
+#if LINE6_BUFSIZE_LISTEN > 65535
+#error "Use dynamic fifo instead"
+#endif
+
+/*
+ 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
+
+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 int ctrl_if;
+ unsigned int ep_ctrl_r;
+ unsigned int ep_ctrl_w;
+ unsigned int ep_audio_r;
+ unsigned int 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 supports hardware monitoring */
+ LINE6_CAP_HWMON = 1 << 2,
+ /* device requires output data when input is read */
+ LINE6_CAP_IN_NEEDS_OUT = 1 << 3,
+ /* device uses raw MIDI via USB (data endpoints) */
+ LINE6_CAP_CONTROL_MIDI = 1 << 4,
+ /* device provides low-level information */
+ LINE6_CAP_CONTROL_INFO = 1 << 5,
+};
+
+/*
+ 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 for data USB packets */
+ int interval;
+ /* ...for isochronous transfers framing */
+ int intervals_per_second;
+
+ /* Number of isochronous URBs used for frame transfers */
+ int iso_buffers;
+
+ /* Maximum size of data 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 POD data endpoint */
+ struct urb *urb_listen;
+
+ /* Buffer for incoming data from POD data endpoint */
+ unsigned char *buffer_listen;
+
+ /* Buffer for message to be processed, generated from MIDI layer */
+ unsigned char *buffer_message;
+
+ /* Length of message to be processed, generated from MIDI layer */
+ int message_length;
+
+ /* Circular buffer for non-MIDI control messages */
+ struct {
+ struct mutex read_lock;
+ wait_queue_head_t wait_queue;
+ unsigned int active:1;
+ STRUCT_KFIFO_REC_2(LINE6_BUFSIZE_LISTEN * LINE6_RAW_MESSAGES_MAXCOUNT)
+ fifo;
+ } messages;
+
+ /* Work for delayed PCM startup */
+ struct delayed_work startup_work;
+
+ /* If MIDI is supported, buffer_message contains the pre-processed data;
+ * otherwise the data is only in urb_listen (buffer_incoming).
+ */
+ void (*process_message)(struct usb_line6 *);
+ void (*disconnect)(struct usb_line6 *line6);
+ void (*startup)(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 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