/*
* Line6 Linux USB driver - 0.8.0
*
* Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
* Emil Myhrman (emil.myhrman@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 "driver.h"
#include "audio.h"
#include "capture.h"
#include "playback.h"
#include "toneport.h"
static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2);
static struct snd_ratden toneport_ratden = {
.num_min = 44100,
.num_max = 44100,
.num_step = 1,
.den = 1
};
static struct line6_pcm_properties toneport_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_S16_LE,
.rates = SNDRV_PCM_RATE_KNOT,
.rate_min = 44100,
.rate_max = 44100,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 60000,
.period_bytes_min = 180 * 4,
.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_S16_LE,
.rates = SNDRV_PCM_RATE_KNOT,
.rate_min = 44100,
.rate_max = 44100,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 60000,
.period_bytes_min = 188 * 4,
.period_bytes_max = 8192,
.periods_min = 1,
.periods_max = 1024
},
.snd_line6_rates = {
.nrats = 1,
.rats = &toneport_ratden
},
.bytes_per_frame = 4
};
/*
For the led on Guitarport.
Brightness goes from 0x00 to 0x26. Set a value above this to have led blink.
(void cmd_0x02(byte red, byte green)
*/
static int led_red = 0x00;
static int led_green = 0x26;
static void toneport_update_led(struct device *dev) {
struct usb_interface *interface;
struct usb_line6_toneport *tp;
struct usb_line6* line6;
if ((interface = to_usb_interface(dev)) &&
(tp = usb_get_intfdata(interface)) &&
(line6 = &tp->line6))
toneport_send_cmd(line6->usbdev, (led_red<<8)|0x0002, led_green); // for setting the LED on Guitarport
}
static ssize_t toneport_set_led_red(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count) {
char* c;
led_red = simple_strtol(buf, &c, 10);
toneport_update_led(dev);
return count;
}
static ssize_t toneport_set_led_green(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count) {
char* c;
led_green = simple_strtol(buf, &c, 10);
toneport_update_led(dev);
return count;
}
static DEVICE_ATTR(led_red, S_IWUGO | S_IRUGO, line6_nop_read, toneport_set_led_red);
static DEVICE_ATTR(led_green, S_IWUGO | S_IRUGO, line6_nop_read, toneport_set_led_green);
static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
{
int ret;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev,0), 0x67,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
cmd1, cmd2, 0, 0, LINE6_TIMEOUT * HZ);
if(ret < 0) {
err("send failed (error %d)\n", ret);
return ret;
}
return 0;
}
/*
Toneport destructor.
*/
static void toneport_destruct(struct usb_interface *interface)
{
struct usb_line6_toneport *toneport = usb_get_intfdata(interface);
struct usb_line6 *line6;
if(toneport == NULL) return;
line6 = &toneport->line6;
if(line6 == NULL) return;
line6_cleanup_audio(line6);
}
/*
Init Toneport device.
*/
int toneport_init(struct usb_interface *interface, struct usb_line6_toneport *toneport)
{
int err, ticks;
struct usb_line6 *line6 = &toneport->line6;
struct usb_device *usbdev;
if((interface == NULL) || (toneport == NULL))
return -ENODEV;
/* initialize audio system: */
if((err = line6_init_audio(line6)) < 0) {
toneport_destruct(interface);
return err;
}
/* initialize PCM subsystem: */
if((err = line6_init_pcm(line6, &toneport_pcm_properties)) < 0) {
toneport_destruct(interface);
return err;
}
/* register audio system: */
if((err = line6_register_audio(line6)) < 0) {
toneport_destruct(interface);
return err;
}
usbdev = line6->usbdev;
line6_read_serial_number(line6, &toneport->serial_number);
line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1);
/* sync time on device with host: */
ticks = (int)get_seconds();
line6_write_data(line6, 0x80c6, &ticks, 4);
/*
seems to work without the first two...
*/
//toneport_send_cmd(usbdev, 0x0201, 0x0002); // ..
//toneport_send_cmd(usbdev, 0x0801, 0x0000); // ..
toneport_send_cmd(usbdev, 0x0301, 0x0000); // only one that works for me; on GP, TP might be different?
if (usbdev->descriptor.idProduct!=LINE6_DEVID_GUITARPORT) {
CHECK_RETURN(device_create_file(&interface->dev, &dev_attr_led_red));
CHECK_RETURN(device_create_file(&interface->dev, &dev_attr_led_green));
toneport_update_led(&usbdev->dev);
}
return 0;
}
/*
Toneport device disconnected.
*/
void toneport_disconnect(struct usb_interface *interface)
{
struct usb_line6_toneport *toneport;
if(interface == NULL) return;
toneport = usb_get_intfdata(interface);
if (toneport->line6.usbdev->descriptor.idProduct != LINE6_DEVID_GUITARPORT) {
device_remove_file(&interface->dev, &dev_attr_led_red);
device_remove_file(&interface->dev, &dev_attr_led_green);
}
if(toneport != NULL) {
struct snd_line6_pcm *line6pcm = toneport->line6.line6pcm;
if(line6pcm != NULL) {
unlink_wait_clear_audio_out_urbs(line6pcm);
unlink_wait_clear_audio_in_urbs(line6pcm);
}
}
toneport_destruct(interface);
}
