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/*
* Line6 Pod HD
*
* Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com>
*
* 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/usb.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "audio.h"
#include "driver.h"
#include "pcm.h"
#include "usbdefs.h"
enum {
LINE6_PODHD300,
LINE6_PODHD400,
LINE6_PODHD500_0,
LINE6_PODHD500_1,
};
struct usb_line6_podhd {
/**
Generic Line6 USB data.
*/
struct usb_line6 line6;
};
#define PODHD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */
static struct snd_ratden podhd_ratden = {
.num_min = 48000,
.num_max = 48000,
.num_step = 1,
.den = 1,
};
static struct line6_pcm_properties podhd_pcm_properties = {
.snd_line6_playback_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START),
.formats = SNDRV_PCM_FMTBIT_S24_3LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 60000,
.period_bytes_min = 64,
.period_bytes_max = 8192,
.periods_min = 1,
.periods_max = 1024},
.snd_line6_capture_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_SYNC_START),
.formats = SNDRV_PCM_FMTBIT_S24_3LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 60000,
.period_bytes_min = 64,
.period_bytes_max = 8192,
.periods_min = 1,
.periods_max = 1024},
.snd_line6_rates = {
.nrats = 1,
.rats = &podhd_ratden},
.bytes_per_frame = PODHD_BYTES_PER_FRAME
};
/*
POD HD destructor.
*/
static void podhd_destruct(struct usb_interface *interface)
{
struct usb_line6_podhd *podhd = usb_get_intfdata(interface);
if (podhd == NULL)
return;
line6_cleanup_audio(&podhd->line6);
}
/*
POD HD device disconnected.
*/
static void line6_podhd_disconnect(struct usb_interface *interface)
{
struct usb_line6_podhd *podhd;
if (interface == NULL)
return;
podhd = usb_get_intfdata(interface);
if (podhd != NULL) {
struct snd_line6_pcm *line6pcm = podhd->line6.line6pcm;
if (line6pcm != NULL)
line6_pcm_disconnect(line6pcm);
}
podhd_destruct(interface);
}
/*
Try to init POD HD device.
*/
static int podhd_try_init(struct usb_interface *interface,
struct usb_line6_podhd *podhd)
{
int err;
struct usb_line6 *line6 = &podhd->line6;
if ((interface == NULL) || (podhd == NULL))
return -ENODEV;
line6->disconnect = line6_podhd_disconnect;
/* initialize audio system: */
err = line6_init_audio(line6);
if (err < 0)
return err;
/* initialize MIDI subsystem: */
err = line6_init_midi(line6);
if (err < 0)
return err;
/* initialize PCM subsystem: */
err = line6_init_pcm(line6, &podhd_pcm_properties);
if (err < 0)
return err;
/* register USB audio system: */
err = line6_register_audio(line6);
return err;
}
#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n)
/* table of devices that work with this driver */
static const struct usb_device_id podhd_id_table[] = {
{ LINE6_DEVICE(0x5057), .driver_info = LINE6_PODHD300 },
{ LINE6_DEVICE(0x5058), .driver_info = LINE6_PODHD400 },
{ LINE6_IF_NUM(0x414D, 0), .driver_info = LINE6_PODHD500_0 },
{ LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 },
{}
};
MODULE_DEVICE_TABLE(usb, podhd_id_table);
static const struct line6_properties podhd_properties_table[] = {
[LINE6_PODHD300] = {
.id = "PODHD300",
.name = "POD HD300",
.capabilities = LINE6_CAP_CONTROL
| LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 5,
.ep_ctrl_r = 0x84,
.ep_ctrl_w = 0x03,
.ep_audio_r = 0x82,
.ep_audio_w = 0x01,
},
[LINE6_PODHD400] = {
.id = "PODHD400",
.name = "POD HD400",
.capabilities = LINE6_CAP_CONTROL
| LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 5,
.ep_ctrl_r = 0x84,
.ep_ctrl_w = 0x03,
.ep_audio_r = 0x82,
.ep_audio_w = 0x01,
},
[LINE6_PODHD500_0] = {
.id = "PODHD500",
.name = "POD HD500",
.capabilities = LINE6_CAP_CONTROL
| LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 1,
.ep_ctrl_r = 0x81,
.ep_ctrl_w = 0x01,
.ep_audio_r = 0x86,
.ep_audio_w = 0x02,
},
[LINE6_PODHD500_1] = {
.id = "PODHD500",
.name = "POD HD500",
.capabilities = LINE6_CAP_CONTROL
| LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 1,
.ep_ctrl_r = 0x81,
.ep_ctrl_w = 0x01,
.ep_audio_r = 0x86,
.ep_audio_w = 0x02,
},
};
/*
Init POD HD device (and clean up in case of failure).
*/
static int podhd_init(struct usb_interface *interface,
struct usb_line6 *line6)
{
struct usb_line6_podhd *podhd = (struct usb_line6_podhd *) line6;
int err = podhd_try_init(interface, podhd);
if (err < 0)
podhd_destruct(interface);
return err;
}
/*
Probe USB device.
*/
static int podhd_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_line6_podhd *podhd;
int err;
podhd = kzalloc(sizeof(*podhd), GFP_KERNEL);
if (!podhd)
return -ENODEV;
err = line6_probe(interface, &podhd->line6,
&podhd_properties_table[id->driver_info],
podhd_init);
if (err < 0)
kfree(podhd);
return err;
}
static struct usb_driver podhd_driver = {
.name = KBUILD_MODNAME,
.probe = podhd_probe,
.disconnect = line6_disconnect,
#ifdef CONFIG_PM
.suspend = line6_suspend,
.resume = line6_resume,
.reset_resume = line6_resume,
#endif
.id_table = podhd_id_table,
};
module_usb_driver(podhd_driver);
MODULE_DESCRIPTION("Line6 PODHD USB driver");
MODULE_LICENSE("GPL");
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