- 根目录:
- drivers
- staging
- line6
- driver.c
/*
* Line6 Linux USB driver - 0.9.1beta
*
* 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.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include "audio.h"
#include "capture.h"
#include "driver.h"
#include "midi.h"
#include "playback.h"
#include "pod.h"
#include "podhd.h"
#include "revision.h"
#include "toneport.h"
#include "usbdefs.h"
#include "variax.h"
#define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>"
#define DRIVER_DESC "Line6 USB Driver"
#define DRIVER_VERSION "0.9.1beta" DRIVER_REVISION
/* table of devices that work with this driver */
static const struct usb_device_id line6_id_table[] = {
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXT)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTLIVE)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTPRO)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_GUITARPORT)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_POCKETPOD)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD300)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD500)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_GX)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX1)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX2)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3LIVE)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXT)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTLIVE)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTPRO)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_GX)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX1)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX2)},
{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_VARIAX)},
{},
};
MODULE_DEVICE_TABLE(usb, line6_id_table);
/* *INDENT-OFF* */
static struct line6_properties line6_properties_table[] = {
{ LINE6_BIT_BASSPODXT, "BassPODxt", "BassPODxt", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_BASSPODXTLIVE, "BassPODxtLive", "BassPODxt Live", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_BASSPODXTPRO, "BassPODxtPro", "BassPODxt Pro", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_GUITARPORT, "GuitarPort", "GuitarPort", LINE6_BIT_PCM },
{ LINE6_BIT_POCKETPOD, "PocketPOD", "Pocket POD", LINE6_BIT_CONTROL },
{ LINE6_BIT_PODHD300, "PODHD300", "POD HD300", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_PODHD500, "PODHD500", "POD HD500", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_PODSTUDIO_GX, "PODStudioGX", "POD Studio GX", LINE6_BIT_PCM },
{ LINE6_BIT_PODSTUDIO_UX1, "PODStudioUX1", "POD Studio UX1", LINE6_BIT_PCM },
{ LINE6_BIT_PODSTUDIO_UX2, "PODStudioUX2", "POD Studio UX2", LINE6_BIT_PCM },
{ LINE6_BIT_PODX3, "PODX3", "POD X3", LINE6_BIT_PCM },
{ LINE6_BIT_PODX3LIVE, "PODX3Live", "POD X3 Live", LINE6_BIT_PCM },
{ LINE6_BIT_PODXT, "PODxt", "PODxt", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_PODXTLIVE, "PODxtLive", "PODxt Live", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_PODXTPRO, "PODxtPro", "PODxt Pro", LINE6_BIT_CONTROL_PCM_HWMON },
{ LINE6_BIT_TONEPORT_GX, "TonePortGX", "TonePort GX", LINE6_BIT_PCM },
{ LINE6_BIT_TONEPORT_UX1, "TonePortUX1", "TonePort UX1", LINE6_BIT_PCM },
{ LINE6_BIT_TONEPORT_UX2, "TonePortUX2", "TonePort UX2", LINE6_BIT_PCM },
{ LINE6_BIT_VARIAX, "Variax", "Variax Workbench", LINE6_BIT_CONTROL },
};
/* *INDENT-ON* */
/*
This is Line6's MIDI manufacturer ID.
*/
const unsigned char line6_midi_id[] = {
0x00, 0x01, 0x0c
};
/*
Code to request version of POD, Variax interface
(and maybe other devices).
*/
static const char line6_request_version[] = {
0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7
};
/**
Class for asynchronous messages.
*/
struct message {
struct usb_line6 *line6;
const char *buffer;
int size;
int done;
};
/*
Forward declarations.
*/
static void line6_data_received(struct urb *urb);
static int line6_send_raw_message_async_part(struct message *msg,
struct urb *urb);
/*
Start to listen on endpoint.
*/
static int line6_start_listen(struct usb_line6 *line6)
{
int err;
usb_fill_int_urb(line6->urb_listen, line6->usbdev,
usb_rcvintpipe(line6->usbdev, line6->ep_control_read),
line6->buffer_listen, LINE6_BUFSIZE_LISTEN,
line6_data_received, line6, line6->interval);
line6->urb_listen->actual_length = 0;
err = usb_submit_urb(line6->urb_listen, GFP_ATOMIC);
return err;
}
/*
Stop listening on endpoint.
*/
static void line6_stop_listen(struct usb_line6 *line6)
{
usb_kill_urb(line6->urb_listen);
}
/*
Send raw message in pieces of wMaxPacketSize bytes.
*/
int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
int size)
{
int i, done = 0;
for (i = 0; i < size; i += line6->max_packet_size) {
int partial;
const char *frag_buf = buffer + i;
int frag_size = min(line6->max_packet_size, size - i);
int retval;
retval = usb_interrupt_msg(line6->usbdev,
usb_sndintpipe(line6->usbdev,
line6->ep_control_write),
(char *)frag_buf, frag_size,
&partial, LINE6_TIMEOUT * HZ);
if (retval) {
dev_err(line6->ifcdev,
"usb_interrupt_msg failed (%d)\n", retval);
break;
}
done += frag_size;
}
return done;
}
/*
Notification of completion of asynchronous request transmission.
*/
static void line6_async_request_sent(struct urb *urb)
{
struct message *msg = (struct message *)urb->context;
if (msg->done >= msg->size) {
usb_free_urb(urb);
kfree(msg);
} else
line6_send_raw_message_async_part(msg, urb);
}
/*
Asynchronously send part of a raw message.
*/
static int line6_send_raw_message_async_part(struct message *msg,
struct urb *urb)
{
int retval;
struct usb_line6 *line6 = msg->line6;
int done = msg->done;
int bytes = min(msg->size - done, line6->max_packet_size);
usb_fill_int_urb(urb, line6->usbdev,
usb_sndintpipe(line6->usbdev, line6->ep_control_write),
(char *)msg->buffer + done, bytes,
line6_async_request_sent, msg, line6->interval);
msg->done += bytes;
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval < 0) {
dev_err(line6->ifcdev, "%s: usb_submit_urb failed (%d)\n",
__func__, retval);
usb_free_urb(urb);
kfree(msg);
return -EINVAL;
}
return 0;
}
/*
Setup and start timer.
*/
void line6_start_timer(struct timer_list *timer, unsigned int msecs,
void (*function) (unsigned long), unsigned long data)
{
setup_timer(timer, function, data);
timer->expires = jiffies + msecs * HZ / 1000;
add_timer(timer);
}
/*
Asynchronously send raw message.
*/
int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer,
int size)
{
struct message *msg;
struct urb *urb;
/* create message: */
msg = kmalloc(sizeof(struct message), GFP_ATOMIC);
if (msg == NULL)
return -ENOMEM;
/* create URB: */
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (urb == NULL) {
kfree(msg);
dev_err(line6->ifcdev, "Out of memory\n");
return -ENOMEM;
}
/* set message data: */
msg->line6 = line6;
msg->buffer = buffer;
msg->size = size;
msg->done = 0;
/* start sending: */
return line6_send_raw_message_async_part(msg, urb);
}
/*
Send asynchronous device version request.
*/
int line6_version_request_async(struct usb_line6 *line6)
{
char *buffer;
int retval;
buffer = kmemdup(line6_request_version,
sizeof(line6_request_version), GFP_ATOMIC);
if (buffer == NULL) {
dev_err(line6->ifcdev, "Out of memory");
return -ENOMEM;
}
retval = line6_send_raw_message_async(line6, buffer,
sizeof(line6_request_version));
kfree(buffer);
return retval;
}
/*
Send sysex message in pieces of wMaxPacketSize bytes.
*/
int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer,
int size)
{
return line6_send_raw_message(line6, buffer,
size + SYSEX_EXTRA_SIZE) -
SYSEX_EXTRA_SIZE;
}
/*
Allocate buffer for sysex message and prepare header.
@param code sysex message code
@param size number of bytes between code and sysex end
*/
char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2,
int size)
{
char *buffer = kmalloc(size + SYSEX_EXTRA_SIZE, GFP_ATOMIC);
if (!buffer)
return NULL;
buffer[0] = LINE6_SYSEX_BEGIN;
memcpy(buffer + 1, line6_midi_id, sizeof(line6_midi_id));
buffer[sizeof(line6_midi_id) + 1] = code1;
buffer[sizeof(line6_midi_id) + 2] = code2;
buffer[sizeof(line6_midi_id) + 3 + size] = LINE6_SYSEX_END;
return buffer;
}
/*
Notification of data received from the Line6 device.
*/
static void line6_data_received(struct urb *urb)
{
struct usb_line6 *line6 = (struct usb_line6 *)urb->context;
struct midi_buffer *mb = &line6->line6midi->midibuf_in;
int done;
if (urb->status == -ESHUTDOWN)
return;
done =
line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length);
if (done < urb->actual_length) {
line6_midibuf_ignore(mb, done);
dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n",
done, urb->actual_length);
}
for (;;) {
done =
line6_midibuf_read(mb, line6->buffer_message,
LINE6_MESSAGE_MAXLEN);
if (done == 0)
break;
line6->message_length = done;
line6_midi_receive(line6, line6->buffer_message, done);
switch (line6->usbdev->descriptor.idProduct) {
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTPRO:
case LINE6_DEVID_POCKETPOD:
line6_pod_process_message((struct usb_line6_pod *)
line6);
break;
case LINE6_DEVID_PODHD300:
case LINE6_DEVID_PODHD500:
break; /* let userspace handle MIDI */
case LINE6_DEVID_PODXTLIVE:
switch (line6->interface_number) {
case PODXTLIVE_INTERFACE_POD:
line6_pod_process_message((struct usb_line6_pod
*)line6);
break;
case PODXTLIVE_INTERFACE_VARIAX:
line6_variax_process_message((struct
usb_line6_variax
*)line6);
break;
default:
dev_err(line6->ifcdev,
"PODxt Live interface %d not supported\n",
line6->interface_number);
}
break;
case LINE6_DEVID_VARIAX:
line6_variax_process_message((struct usb_line6_variax *)
line6);
break;
default:
MISSING_CASE;
}
}
line6_start_listen(line6);
}
/*
Send channel number (i.e., switch to a different sound).
*/
int line6_send_program(struct usb_line6 *line6, u8 value)
{
int retval;
unsigned char *buffer;
int partial;
buffer = kmalloc(2, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
buffer[0] = LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST;
buffer[1] = value;
retval = usb_interrupt_msg(line6->usbdev,
usb_sndintpipe(line6->usbdev,
line6->ep_control_write),
buffer, 2, &partial, LINE6_TIMEOUT * HZ);
if (retval)
dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n",
retval);
kfree(buffer);
return retval;
}
/*
Transmit Line6 control parameter.
*/
int line6_transmit_parameter(struct usb_line6 *line6, int param, u8 value)
{
int retval;
unsigned char *buffer;
int partial;
buffer = kmalloc(3, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
buffer[0] = LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST;
buffer[1] = param;
buffer[2] = value;
retval = usb_interrupt_msg(line6->usbdev,
usb_sndintpipe(line6->usbdev,
line6->ep_control_write),
buffer, 3, &partial, LINE6_TIMEOUT * HZ);
if (retval)
dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n",
retval);
kfree(buffer);
return retval;
}
/*
Read data from device.
*/
int line6_read_data(struct usb_line6 *line6, int address, void *data,
size_t datalen)
{
struct usb_device *usbdev = line6->usbdev;
int ret;
unsigned char len;
/* query the serial number: */
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
(datalen << 8) | 0x21, address,
NULL, 0, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
return ret;
}
/* Wait for data length. We'll get 0xff until length arrives. */
do {
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
0x0012, 0x0000, &len, 1,
LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receive length failed (error %d)\n", ret);
return ret;
}
} while (len == 0xff);
if (len != datalen) {
/* should be equal or something went wrong */
dev_err(line6->ifcdev,
"length mismatch (expected %d, got %d)\n",
(int)datalen, (int)len);
return -EINVAL;
}
/* receive the result: */
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
0x0013, 0x0000, data, datalen,
LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
return ret;
}
return 0;
}
/*
Write data to device.
*/
int line6_write_data(struct usb_line6 *line6, int address, void *data,
size_t datalen)
{
struct usb_device *usbdev = line6->usbdev;
int ret;
unsigned char status;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
0x0022, address, data, datalen,
LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"write request failed (error %d)\n", ret);
return ret;
}
do {
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
0x0012, 0x0000,
&status, 1, LINE6_TIMEOUT * HZ);
if (ret < 0) {
dev_err(line6->ifcdev,
"receiving status failed (error %d)\n", ret);
return ret;
}
} while (status == 0xff);
if (status != 0) {
dev_err(line6->ifcdev, "write failed (error %d)\n", ret);
return -EINVAL;
}
return 0;
}
/*
Read Line6 device serial number.
(POD, TonePort, GuitarPort)
*/
int line6_read_serial_number(struct usb_line6 *line6, int *serial_number)
{
return line6_read_data(line6, 0x80d0, serial_number,
sizeof(*serial_number));
}
/*
No operation (i.e., unsupported).
*/
ssize_t line6_nop_read(struct device *dev, struct device_attribute *attr,
char *buf)
{
return 0;
}
/*
No operation (i.e., unsupported).
*/
ssize_t line6_nop_write(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
return count;
}
/*
Generic destructor.
*/
static void line6_destruct(struct usb_interface *interface)
{
struct usb_line6 *line6;
if (interface == NULL)
return;
line6 = usb_get_intfdata(interface);
if (line6 == NULL)
return;
/* free buffer memory first: */
kfree(line6->buffer_message);
kfree(line6->buffer_listen);
/* then free URBs: */
usb_free_urb(line6->urb_listen);
/* make sure the device isn't destructed twice: */
usb_set_intfdata(interface, NULL);
/* free interface data: */
kfree(line6);
}
/*
Probe USB device.
*/
static int line6_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
int devtype;
struct usb_device *usbdev;
struct usb_line6 *line6;
const struct line6_properties *properties;
int interface_number, alternate = 0;
int product;
int size = 0;
int ep_read = 0, ep_write = 0;
int ret;
if (interface == NULL)
return -ENODEV;
usbdev = interface_to_usbdev(interface);
if (usbdev == NULL)
return -ENODEV;
/* we don't handle multiple configurations */
if (usbdev->descriptor.bNumConfigurations != 1) {
ret = -ENODEV;
goto err_put;
}
/* check vendor and product id */
for (devtype = ARRAY_SIZE(line6_id_table) - 1; devtype--;) {
u16 idVendor = le16_to_cpu(usbdev->descriptor.idVendor);
u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
if (idVendor == line6_id_table[devtype].idVendor &&
idProduct == line6_id_table[devtype].idProduct)
break;
}
if (devtype < 0) {
ret = -ENODEV;
goto err_put;
}
/* initialize device info: */
properties = &line6_properties_table[devtype];
dev_info(&interface->dev, "Line6 %s found\n", properties->name);
product = le16_to_cpu(usbdev->descriptor.idProduct);
/* query interface number */
interface_number = interface->cur_altsetting->desc.bInterfaceNumber;
switch (product) {
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_PODXTLIVE:
case LINE6_DEVID_VARIAX:
alternate = 1;
break;
case LINE6_DEVID_POCKETPOD:
switch (interface_number) {
case 0:
return 0; /* this interface has no endpoints */
case 1:
alternate = 0;
break;
default:
MISSING_CASE;
}
break;
case LINE6_DEVID_PODHD500:
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
switch (interface_number) {
case 0:
alternate = 1;
break;
case 1:
alternate = 0;
break;
default:
MISSING_CASE;
}
break;
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTPRO:
case LINE6_DEVID_PODHD300:
alternate = 5;
break;
case LINE6_DEVID_GUITARPORT:
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
alternate = 2; /* 1..4 seem to be ok */
break;
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_PODSTUDIO_UX2:
switch (interface_number) {
case 0:
/* defaults to 44.1kHz, 16-bit */
alternate = 2;
break;
case 1:
/* don't know yet what this is ...
alternate = 1;
break;
*/
return -ENODEV;
default:
MISSING_CASE;
}
break;
default:
MISSING_CASE;
ret = -ENODEV;
goto err_put;
}
ret = usb_set_interface(usbdev, interface_number, alternate);
if (ret < 0) {
dev_err(&interface->dev, "set_interface failed\n");
goto err_put;
}
/* initialize device data based on product id: */
switch (product) {
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTPRO:
size = sizeof(struct usb_line6_pod);
ep_read = 0x84;
ep_write = 0x03;
break;
case LINE6_DEVID_PODHD300:
size = sizeof(struct usb_line6_podhd);
ep_read = 0x84;
ep_write = 0x03;
break;
case LINE6_DEVID_PODHD500:
size = sizeof(struct usb_line6_podhd);
ep_read = 0x81;
ep_write = 0x01;
break;
case LINE6_DEVID_POCKETPOD:
size = sizeof(struct usb_line6_pod);
ep_read = 0x82;
ep_write = 0x02;
break;
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
/* currently unused! */
size = sizeof(struct usb_line6_pod);
ep_read = 0x81;
ep_write = 0x01;
break;
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_PODSTUDIO_UX2:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_GUITARPORT:
size = sizeof(struct usb_line6_toneport);
/* these don't have a control channel */
break;
case LINE6_DEVID_PODXTLIVE:
switch (interface_number) {
case PODXTLIVE_INTERFACE_POD:
size = sizeof(struct usb_line6_pod);
ep_read = 0x84;
ep_write = 0x03;
break;
case PODXTLIVE_INTERFACE_VARIAX:
size = sizeof(struct usb_line6_variax);
ep_read = 0x86;
ep_write = 0x05;
break;
default:
ret = -ENODEV;
goto err_put;
}
break;
case LINE6_DEVID_VARIAX:
size = sizeof(struct usb_line6_variax);
ep_read = 0x82;
ep_write = 0x01;
break;
default:
MISSING_CASE;
ret = -ENODEV;
goto err_put;
}
if (size == 0) {
dev_err(&interface->dev,
"driver bug: interface data size not set\n");
ret = -ENODEV;
goto err_put;
}
line6 = kzalloc(size, GFP_KERNEL);
if (line6 == NULL) {
ret = -ENODEV;
goto err_put;
}
/* store basic data: */
line6->interface_number = interface_number;
line6->properties = properties;
line6->usbdev = usbdev;
line6->ifcdev = &interface->dev;
line6->ep_control_read = ep_read;
line6->ep_control_write = ep_write;
line6->product = product;
/* get data from endpoint descriptor (see usb_maxpacket): */
{
struct usb_host_endpoint *ep;
unsigned epnum =
usb_pipeendpoint(usb_rcvintpipe(usbdev, ep_read));
ep = usbdev->ep_in[epnum];
if (ep != NULL) {
line6->interval = ep->desc.bInterval;
line6->max_packet_size =
le16_to_cpu(ep->desc.wMaxPacketSize);
} else {
line6->interval = LINE6_FALLBACK_INTERVAL;
line6->max_packet_size = LINE6_FALLBACK_MAXPACKETSIZE;
dev_err(line6->ifcdev,
"endpoint not available, using fallback values");
}
}
usb_set_intfdata(interface, line6);
if (properties->capabilities & LINE6_BIT_CONTROL) {
/* initialize USB buffers: */
line6->buffer_listen =
kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL);
if (line6->buffer_listen == NULL) {
ret = -ENOMEM;
goto err_destruct;
}
line6->buffer_message =
kmalloc(LINE6_MESSAGE_MAXLEN, GFP_KERNEL);
if (line6->buffer_message == NULL) {
ret = -ENOMEM;
goto err_destruct;
}
line6->urb_listen = usb_alloc_urb(0, GFP_KERNEL);
if (line6->urb_listen == NULL) {
dev_err(&interface->dev, "Out of memory\n");
line6_destruct(interface);
ret = -ENOMEM;
goto err_destruct;
}
ret = line6_start_listen(line6);
if (ret < 0) {
dev_err(&interface->dev, "%s: usb_submit_urb failed\n",
__func__);
goto err_destruct;
}
}
/* initialize device data based on product id: */
switch (product) {
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_POCKETPOD:
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTPRO:
ret = line6_pod_init(interface, (struct usb_line6_pod *)line6);
break;
case LINE6_DEVID_PODHD300:
case LINE6_DEVID_PODHD500:
ret = line6_podhd_init(interface,
(struct usb_line6_podhd *)line6);
break;
case LINE6_DEVID_PODXTLIVE:
switch (interface_number) {
case PODXTLIVE_INTERFACE_POD:
ret =
line6_pod_init(interface,
(struct usb_line6_pod *)line6);
break;
case PODXTLIVE_INTERFACE_VARIAX:
ret =
line6_variax_init(interface,
(struct usb_line6_variax *)line6);
break;
default:
dev_err(&interface->dev,
"PODxt Live interface %d not supported\n",
interface_number);
ret = -ENODEV;
}
break;
case LINE6_DEVID_VARIAX:
ret =
line6_variax_init(interface,
(struct usb_line6_variax *)line6);
break;
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_PODSTUDIO_UX2:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_GUITARPORT:
ret =
line6_toneport_init(interface,
(struct usb_line6_toneport *)line6);
break;
default:
MISSING_CASE;
ret = -ENODEV;
}
if (ret < 0)
goto err_destruct;
ret = sysfs_create_link(&interface->dev.kobj, &usbdev->dev.kobj,
"usb_device");
if (ret < 0)
goto err_destruct;
/* creation of additional special files should go here */
dev_info(&interface->dev, "Line6 %s now attached\n",
line6->properties->name);
switch (product) {
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
dev_info(&interface->dev,
"NOTE: the Line6 %s is detected, but not yet supported\n",
line6->properties->name);
}
/* increment reference counters: */
usb_get_intf(interface);
usb_get_dev(usbdev);
return 0;
err_destruct:
line6_destruct(interface);
err_put:
return ret;
}
/*
Line6 device disconnected.
*/
static void line6_disconnect(struct usb_interface *interface)
{
struct usb_line6 *line6;
struct usb_device *usbdev;
int interface_number;
if (interface == NULL)
return;
usbdev = interface_to_usbdev(interface);
if (usbdev == NULL)
return;
/* removal of additional special files should go here */
sysfs_remove_link(&interface->dev.kobj, "usb_device");
interface_number = interface->cur_altsetting->desc.bInterfaceNumber;
line6 = usb_get_intfdata(interface);
if (line6 != NULL) {
if (line6->urb_listen != NULL)
line6_stop_listen(line6);
if (usbdev != line6->usbdev)
dev_err(line6->ifcdev,
"driver bug: inconsistent usb device\n");
switch (line6->usbdev->descriptor.idProduct) {
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_POCKETPOD:
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTPRO:
line6_pod_disconnect(interface);
break;
case LINE6_DEVID_PODHD300:
case LINE6_DEVID_PODHD500:
line6_podhd_disconnect(interface);
break;
case LINE6_DEVID_PODXTLIVE:
switch (interface_number) {
case PODXTLIVE_INTERFACE_POD:
line6_pod_disconnect(interface);
break;
case PODXTLIVE_INTERFACE_VARIAX:
line6_variax_disconnect(interface);
break;
}
break;
case LINE6_DEVID_VARIAX:
line6_variax_disconnect(interface);
break;
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_PODSTUDIO_UX2:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_GUITARPORT:
line6_toneport_disconnect(interface);
break;
default:
MISSING_CASE;
}
dev_info(&interface->dev, "Line6 %s now disconnected\n",
line6->properties->name);
}
line6_destruct(interface);
/* decrement reference counters: */
usb_put_intf(interface);
usb_put_dev(usbdev);
}
#ifdef CONFIG_PM
/*
Suspend Line6 device.
*/
static int line6_suspend(struct usb_interface *interface, pm_message_t message)
{
struct usb_line6 *line6 = usb_get_intfdata(interface);
struct snd_line6_pcm *line6pcm = line6->line6pcm;
snd_power_change_state(line6->card, SNDRV_CTL_POWER_D3hot);
if (line6->properties->capabilities & LINE6_BIT_CONTROL)
line6_stop_listen(line6);
if (line6pcm != NULL) {
snd_pcm_suspend_all(line6pcm->pcm);
line6_pcm_disconnect(line6pcm);
line6pcm->flags = 0;
}
return 0;
}
/*
Resume Line6 device.
*/
static int line6_resume(struct usb_interface *interface)
{
struct usb_line6 *line6 = usb_get_intfdata(interface);
if (line6->properties->capabilities & LINE6_BIT_CONTROL)
line6_start_listen(line6);
snd_power_change_state(line6->card, SNDRV_CTL_POWER_D0);
return 0;
}
/*
Resume Line6 device after reset.
*/
static int line6_reset_resume(struct usb_interface *interface)
{
struct usb_line6 *line6 = usb_get_intfdata(interface);
switch (line6->usbdev->descriptor.idProduct) {
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_PODSTUDIO_UX2:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_GUITARPORT:
line6_toneport_reset_resume((struct usb_line6_toneport *)line6);
}
return line6_resume(interface);
}
#endif /* CONFIG_PM */
static struct usb_driver line6_driver = {
.name = DRIVER_NAME,
.probe = line6_probe,
.disconnect = line6_disconnect,
#ifdef CONFIG_PM
.suspend = line6_suspend,
.resume = line6_resume,
.reset_resume = line6_reset_resume,
#endif
.id_table = line6_id_table,
};
module_usb_driver(line6_driver);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);