From ccddbe4a99536154e61d16c0f1c2df8a6d63f52a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 15 Jan 2015 08:22:31 +0100
Subject: ALSA: line6: Split to each driver

Split to each individual driver for POD, PODHD, TonePort and Variax
with a core LINE6 helper module.  The new modules follow the standard
ALSA naming rule with snd prefix: snd-usb-pod, snd-usb-podhd,
snd-usb-toneport and snd-usb-variax, together with the corresponding
CONFIG_SND_USB_* Kconfig items.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/line6/variax.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 131 insertions(+), 2 deletions(-)

(limited to 'sound/usb/line6/variax.c')

diff --git a/sound/usb/line6/variax.c b/sound/usb/line6/variax.c
index b4a41b0ad0ea..0c852bb1e76c 100644
--- a/sound/usb/line6/variax.c
+++ b/sound/usb/line6/variax.c
@@ -10,10 +10,65 @@
  */
 
 #include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <linux/wait.h>
+#include <linux/module.h>
+#include <sound/core.h>
 
 #include "audio.h"
 #include "driver.h"
-#include "variax.h"
+#include "usbdefs.h"
+
+#define VARIAX_STARTUP_DELAY1 1000
+#define VARIAX_STARTUP_DELAY3 100
+#define VARIAX_STARTUP_DELAY4 100
+
+/*
+	Stages of Variax startup procedure
+*/
+enum {
+	VARIAX_STARTUP_INIT = 1,
+	VARIAX_STARTUP_VERSIONREQ,
+	VARIAX_STARTUP_WAIT,
+	VARIAX_STARTUP_ACTIVATE,
+	VARIAX_STARTUP_WORKQUEUE,
+	VARIAX_STARTUP_SETUP,
+	VARIAX_STARTUP_LAST = VARIAX_STARTUP_SETUP - 1
+};
+
+enum {
+	LINE6_PODXTLIVE_VARIAX,
+	LINE6_VARIAX
+};
+
+struct usb_line6_variax {
+	/**
+		Generic Line6 USB data.
+	*/
+	struct usb_line6 line6;
+
+	/**
+		Buffer for activation code.
+	*/
+	unsigned char *buffer_activate;
+
+	/**
+		Handler for device initializaton.
+	*/
+	struct work_struct startup_work;
+
+	/**
+		Timers for device initializaton.
+	*/
+	struct timer_list startup_timer1;
+	struct timer_list startup_timer2;
+
+	/**
+		Current progress in startup procedure.
+	*/
+	int startup_progress;
+};
 
 #define VARIAX_OFFSET_ACTIVATE 7
 
@@ -228,7 +283,8 @@ static int variax_try_init(struct usb_interface *interface,
 /*
 	 Init workbench device (and clean up in case of failure).
 */
-int line6_variax_init(struct usb_interface *interface, struct usb_line6 *line6)
+static int variax_init(struct usb_interface *interface,
+		       struct usb_line6 *line6)
 {
 	int err = variax_try_init(interface, line6);
 
@@ -237,3 +293,76 @@ int line6_variax_init(struct usb_interface *interface, struct usb_line6 *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 variax_id_table[] = {
+	{ LINE6_IF_NUM(0x4650, 1), .driver_info = LINE6_PODXTLIVE_VARIAX },
+	{ LINE6_DEVICE(0x534d),    .driver_info = LINE6_VARIAX },
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, variax_id_table);
+
+static const struct line6_properties variax_properties_table[] = {
+	[LINE6_PODXTLIVE_VARIAX] = {
+		.id = "PODxtLive",
+		.name = "PODxt Live",
+		.capabilities	= LINE6_CAP_CONTROL
+				| LINE6_CAP_PCM
+				| LINE6_CAP_HWMON,
+		.altsetting = 1,
+		.ep_ctrl_r = 0x86,
+		.ep_ctrl_w = 0x05,
+		.ep_audio_r = 0x82,
+		.ep_audio_w = 0x01,
+	},
+	[LINE6_VARIAX] = {
+		.id = "Variax",
+		.name = "Variax Workbench",
+		.capabilities	= LINE6_CAP_CONTROL,
+		.altsetting = 1,
+		.ep_ctrl_r = 0x82,
+		.ep_ctrl_w = 0x01,
+		/* no audio channel */
+	}
+};
+
+/*
+	Probe USB device.
+*/
+static int variax_probe(struct usb_interface *interface,
+			const struct usb_device_id *id)
+{
+	struct usb_line6_variax *variax;
+	int err;
+
+	variax = kzalloc(sizeof(*variax), GFP_KERNEL);
+	if (!variax)
+		return -ENODEV;
+	err = line6_probe(interface, &variax->line6,
+			  &variax_properties_table[id->driver_info],
+			  variax_init);
+	if (err < 0)
+		kfree(variax);
+	return err;
+}
+
+static struct usb_driver variax_driver = {
+	.name = KBUILD_MODNAME,
+	.probe = variax_probe,
+	.disconnect = line6_disconnect,
+#ifdef CONFIG_PM
+	.suspend = line6_suspend,
+	.resume = line6_resume,
+	.reset_resume = line6_resume,
+#endif
+	.id_table = variax_id_table,
+};
+
+module_usb_driver(variax_driver);
+
+MODULE_DESCRIPTION("Vairax Workbench USB driver");
+MODULE_LICENSE("GPL");
-- 
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