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path: root/drivers/staging/line6/toneport.c
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-rw-r--r--drivers/staging/line6/toneport.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
new file mode 100644
index 000000000000..eaa1229002aa
--- /dev/null
+++ b/drivers/staging/line6/toneport.c
@@ -0,0 +1,241 @@
+/*
+ * 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 = to_usb_interface(dev);
+ struct usb_line6_toneport *tp = usb_get_intfdata(interface);
+ struct usb_line6 *line6;
+
+ if (!tp)
+ return;
+
+ line6 = &tp->line6;
+ if (line6)
+ toneport_send_cmd(line6->usbdev, (led_red << 8) | 0x0002,
+ led_green);
+}
+
+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, NULL, 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: */
+ err = line6_init_audio(line6);
+ if (err < 0) {
+ toneport_destruct(interface);
+ return err;
+ }
+
+ /* initialize PCM subsystem: */
+ err = line6_init_pcm(line6, &toneport_pcm_properties);
+ if (err < 0) {
+ toneport_destruct(interface);
+ return err;
+ }
+
+ /* register audio system: */
+ err = line6_register_audio(line6);
+ if (err < 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); */
+ /* only one that works for me; on GP, TP might be different? */
+ toneport_send_cmd(usbdev, 0x0301, 0x0000);
+
+ 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);
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.