staging: line6: sync with upstream
Big upstream sync.
Signed-off-by: Markus Grabner <grabner@icg.tugraz.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/line6/variax.c b/drivers/staging/line6/variax.c
index 58ddbe6..9f1b085 100644
--- a/drivers/staging/line6/variax.c
+++ b/drivers/staging/line6/variax.c
@@ -1,7 +1,7 @@
/*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
*
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * 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
@@ -9,12 +9,11 @@
*
*/
-#include "driver.h"
-
#include <linux/slab.h>
#include "audio.h"
#include "control.h"
+#include "driver.h"
#include "variax.h"
@@ -26,18 +25,46 @@
#define VARIAX_OFFSET_ACTIVATE 7
+/*
+ This message is sent by the device during initialization and identifies
+ the connected guitar model.
+*/
+static const char variax_init_model[] = {
+ 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x69, 0x02,
+ 0x00
+};
+
+/*
+ This message is sent by the device during initialization and identifies
+ the connected guitar version.
+*/
+static const char variax_init_version[] = {
+ 0xf0, 0x7e, 0x7f, 0x06, 0x02, 0x00, 0x01, 0x0c,
+ 0x07, 0x00, 0x00, 0x00
+};
+
+/*
+ This message is the last one sent by the device during initialization.
+*/
+static const char variax_init_done[] = {
+ 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x6b
+};
+
static const char variax_activate[] = {
0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x2a, 0x01,
0xf7
};
+
static const char variax_request_bank[] = {
0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x6d, 0xf7
};
+
static const char variax_request_model1[] = {
0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x3c, 0x00,
0x02, 0x00, 0x00, 0x00, 0x00, 0x03, 0x05, 0x03,
0x00, 0x00, 0x00, 0xf7
};
+
static const char variax_request_model2[] = {
0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x3c, 0x00,
0x02, 0x00, 0x00, 0x00, 0x00, 0x03, 0x07, 0x03,
@@ -45,6 +72,13 @@
};
+/* forward declarations: */
+static int variax_create_files2(struct device *dev);
+static void variax_startup2(unsigned long data);
+static void variax_startup4(unsigned long data);
+static void variax_startup5(unsigned long data);
+
+
/*
Decode data transmitted by workbench.
*/
@@ -60,42 +94,93 @@
}
}
-static void variax_activate_timeout(unsigned long arg)
+static void variax_activate_async(struct usb_line6_variax *variax, int a)
{
- struct usb_line6_variax *variax = (struct usb_line6_variax *)arg;
- variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = 1;
+ variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = a;
line6_send_raw_message_async(&variax->line6, variax->buffer_activate,
sizeof(variax_activate));
}
/*
- Send an asynchronous activation request after a given interval.
+ Variax startup procedure.
+ This is a sequence of functions with special requirements (e.g., must
+ not run immediately after initialization, must not run in interrupt
+ context). After the last one has finished, the device is ready to use.
*/
-static void variax_activate_delayed(struct usb_line6_variax *variax,
- int seconds)
+
+static void variax_startup1(struct usb_line6_variax *variax)
{
- variax->activate_timer.expires = jiffies + seconds * HZ;
- variax->activate_timer.function = variax_activate_timeout;
- variax->activate_timer.data = (unsigned long)variax;
- add_timer(&variax->activate_timer);
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 1);
+
+ /* delay startup procedure: */
+ line6_start_timer(&variax->startup_timer, VARIAX_STARTUP_DELAY1, variax_startup2, (unsigned long)variax);
}
-static void variax_startup_timeout(unsigned long arg)
+static void variax_startup2(unsigned long data)
{
- struct usb_line6_variax *variax = (struct usb_line6_variax *)arg;
+ struct usb_line6_variax *variax = (struct usb_line6_variax *)data;
+ struct usb_line6 *line6 = &variax->line6;
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 2);
- if (variax->dumpreq.ok)
- return;
+ /* request firmware version: */
+ line6_version_request_async(line6);
+}
- line6_dump_request_async(&variax->dumpreq, &variax->line6, 0);
- line6_startup_delayed(&variax->dumpreq, 1, variax_startup_timeout,
- variax);
+static void variax_startup3(struct usb_line6_variax *variax)
+{
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 3);
+
+ /* delay startup procedure: */
+ line6_start_timer(&variax->startup_timer, VARIAX_STARTUP_DELAY3, variax_startup4, (unsigned long)variax);
+}
+
+static void variax_startup4(unsigned long data)
+{
+ struct usb_line6_variax *variax = (struct usb_line6_variax *)data;
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 4);
+
+ /* activate device: */
+ variax_activate_async(variax, 1);
+ line6_start_timer(&variax->startup_timer, VARIAX_STARTUP_DELAY4, variax_startup5, (unsigned long)variax);
+}
+
+static void variax_startup5(unsigned long data)
+{
+ struct usb_line6_variax *variax = (struct usb_line6_variax *)data;
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 5);
+
+ /* current model dump: */
+ line6_dump_request_async(&variax->dumpreq, &variax->line6, 0, VARIAX_DUMP_PASS1);
+ /* passes 2 and 3 are performed implicitly before entering variax_startup6 */
+}
+
+static void variax_startup6(struct usb_line6_variax *variax)
+{
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 6);
+
+ /* schedule work for global work queue: */
+ schedule_work(&variax->startup_work);
+}
+
+static void variax_startup7(struct work_struct *work)
+{
+ struct usb_line6_variax *variax = container_of(work, struct usb_line6_variax, startup_work);
+ struct usb_line6 *line6 = &variax->line6;
+
+ CHECK_STARTUP_PROGRESS(variax->startup_progress, 7);
+
+ /* ALSA audio interface: */
+ line6_register_audio(&variax->line6);
+
+ /* device files: */
+ line6_variax_create_files(0, 0, line6->ifcdev);
+ variax_create_files2(line6->ifcdev);
}
/*
Process a completely received message.
*/
-void variax_process_message(struct usb_line6_variax *variax)
+void line6_variax_process_message(struct usb_line6_variax *variax)
{
const unsigned char *buf = variax->line6.buffer_message;
@@ -115,12 +200,11 @@
case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_DEVICE:
case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST:
variax->model = buf[1];
- line6_dump_request_async(&variax->dumpreq, &variax->line6, 0);
+ line6_dump_request_async(&variax->dumpreq, &variax->line6, 0, VARIAX_DUMP_PASS1);
break;
case LINE6_RESET:
dev_info(variax->line6.ifcdev, "VARIAX reset\n");
- variax_activate_delayed(variax, VARIAX_ACTIVATE_DELAY);
break;
case LINE6_SYSEX_BEGIN:
@@ -132,8 +216,7 @@
case VARIAX_DUMP_PASS1:
variax_decode(buf + VARIAX_MODEL_HEADER_LENGTH, (unsigned char *)&variax->model_data,
(sizeof(variax->model_data.name) + sizeof(variax->model_data.control) / 2) * 2);
- line6_dump_request_async(&variax->dumpreq, &variax->line6, 1);
- line6_dump_started(&variax->dumpreq, VARIAX_DUMP_PASS2);
+ line6_dump_request_async(&variax->dumpreq, &variax->line6, 1, VARIAX_DUMP_PASS2);
break;
case VARIAX_DUMP_PASS2:
@@ -141,21 +224,31 @@
variax_decode(buf + VARIAX_MODEL_HEADER_LENGTH,
(unsigned char *)&variax->model_data.control + sizeof(variax->model_data.control) / 2,
sizeof(variax->model_data.control) / 2 * 2);
- variax->dumpreq.ok = 1;
- line6_dump_request_async(&variax->dumpreq, &variax->line6, 2);
- line6_dump_started(&variax->dumpreq, VARIAX_DUMP_PASS3);
+ line6_dump_request_async(&variax->dumpreq, &variax->line6, 2, VARIAX_DUMP_PASS3);
}
} else {
DEBUG_MESSAGES(dev_err(variax->line6.ifcdev, "illegal length %d of model data\n", variax->line6.message_length));
line6_dump_finished(&variax->dumpreq);
}
} else if (memcmp(buf + 1, variax_request_bank + 1,
- sizeof(variax_request_bank) - 2) == 0) {
+ sizeof(variax_request_bank) - 2) == 0) {
memcpy(variax->bank,
buf + sizeof(variax_request_bank) - 1,
sizeof(variax->bank));
- variax->dumpreq.ok = 1;
line6_dump_finished(&variax->dumpreq);
+ variax_startup6(variax);
+ } else if (memcmp(buf + 1, variax_init_model + 1,
+ sizeof(variax_init_model) - 1) == 0) {
+ memcpy(variax->guitar,
+ buf + sizeof(variax_init_model),
+ sizeof(variax->guitar));
+ } else if (memcmp(buf + 1, variax_init_version + 1,
+ sizeof(variax_init_version) - 1) == 0) {
+ variax_startup3(variax);
+ } else if (memcmp(buf + 1, variax_init_done + 1,
+ sizeof(variax_init_done) - 1) == 0) {
+ /* notify of complete initialization: */
+ variax_startup4((unsigned long)variax);
}
break;
@@ -256,9 +349,7 @@
if (ret)
return ret;
- variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = value ? 1 : 0;
- line6_send_raw_message_async(&variax->line6, variax->buffer_activate,
- sizeof(variax_activate));
+ variax_activate_async(variax, value ? 1 : 0);
return count;
}
@@ -317,7 +408,7 @@
struct device_attribute *attr, char *buf)
{
struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
- line6_wait_dump(&variax->dumpreq, 0);
+ line6_dump_wait_interruptible(&variax->dumpreq);
return get_string(buf, variax->model_data.name,
sizeof(variax->model_data.name));
}
@@ -329,7 +420,7 @@
struct device_attribute *attr, char *buf)
{
struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
- line6_wait_dump(&variax->dumpreq, 0);
+ line6_dump_wait_interruptible(&variax->dumpreq);
return get_string(buf, variax->bank, sizeof(variax->bank));
}
@@ -341,7 +432,7 @@
{
struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
int retval;
- retval = line6_wait_dump(&variax->dumpreq, 0);
+ retval = line6_dump_wait_interruptible(&variax->dumpreq);
if (retval < 0)
return retval;
memcpy(buf, &variax->model_data.control,
@@ -349,7 +440,22 @@
return sizeof(variax->model_data.control);
}
-#if CREATE_RAW_FILE
+/*
+ "read" request on "guitar" special file.
+*/
+static ssize_t variax_get_guitar(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
+ return sprintf(buf, "%s\n", variax->guitar);
+}
+
+#ifdef CONFIG_LINE6_USB_RAW
+
+static char *variax_alloc_sysex_buffer(struct usb_line6_variax *variax, int code, int size)
+{
+ return line6_alloc_sysex_buffer(&variax->line6, VARIAX_SYSEX_CODE, code, size);
+}
/*
"write" request on "raw" special file.
@@ -396,8 +502,9 @@
static DEVICE_ATTR(bank, S_IRUGO, variax_get_bank, line6_nop_write);
static DEVICE_ATTR(dump, S_IRUGO, variax_get_dump, line6_nop_write);
static DEVICE_ATTR(active, S_IWUGO | S_IRUGO, variax_get_active, variax_set_active);
+static DEVICE_ATTR(guitar, S_IRUGO, variax_get_guitar, line6_nop_write);
-#if CREATE_RAW_FILE
+#ifdef CONFIG_LINE6_USB_RAW
static DEVICE_ATTR(raw, S_IWUGO, line6_nop_read, line6_set_raw);
static DEVICE_ATTR(raw2, S_IWUGO, line6_nop_read, variax_set_raw2);
#endif
@@ -424,7 +531,6 @@
line6_dumpreq_destruct(&variax->dumpreq);
kfree(variax->buffer_activate);
- del_timer_sync(&variax->activate_timer);
}
/*
@@ -440,7 +546,8 @@
CHECK_RETURN(device_create_file(dev, &dev_attr_bank));
CHECK_RETURN(device_create_file(dev, &dev_attr_dump));
CHECK_RETURN(device_create_file(dev, &dev_attr_active));
-#if CREATE_RAW_FILE
+ CHECK_RETURN(device_create_file(dev, &dev_attr_guitar));
+#ifdef CONFIG_LINE6_USB_RAW
CHECK_RETURN(device_create_file(dev, &dev_attr_raw));
CHECK_RETURN(device_create_file(dev, &dev_attr_raw2));
#endif
@@ -448,23 +555,25 @@
}
/*
- Init workbench device.
+ Try to init workbench device.
*/
-int variax_init(struct usb_interface *interface,
- struct usb_line6_variax *variax)
+static int variax_try_init(struct usb_interface *interface,
+ struct usb_line6_variax *variax)
{
int err;
if ((interface == NULL) || (variax == NULL))
return -ENODEV;
+ init_timer(&variax->startup_timer);
+ INIT_WORK(&variax->startup_work, variax_startup7);
+
/* initialize USB buffers: */
err = line6_dumpreq_init(&variax->dumpreq, variax_request_model1,
sizeof(variax_request_model1));
if (err < 0) {
dev_err(&interface->dev, "Out of memory\n");
- variax_destruct(interface);
return err;
}
@@ -473,7 +582,6 @@
if (err < 0) {
dev_err(&interface->dev, "Out of memory\n");
- variax_destruct(interface);
return err;
}
@@ -482,7 +590,6 @@
if (err < 0) {
dev_err(&interface->dev, "Out of memory\n");
- variax_destruct(interface);
return err;
}
@@ -491,56 +598,45 @@
if (variax->buffer_activate == NULL) {
dev_err(&interface->dev, "Out of memory\n");
- variax_destruct(interface);
return -ENOMEM;
}
- init_timer(&variax->activate_timer);
-
- /* create sysfs entries: */
- err = variax_create_files(0, 0, &interface->dev);
- if (err < 0) {
- variax_destruct(interface);
- return err;
- }
-
- err = variax_create_files2(&interface->dev);
- if (err < 0) {
- variax_destruct(interface);
- return err;
- }
-
/* initialize audio system: */
err = line6_init_audio(&variax->line6);
if (err < 0) {
- variax_destruct(interface);
return err;
}
/* initialize MIDI subsystem: */
err = line6_init_midi(&variax->line6);
if (err < 0) {
- variax_destruct(interface);
return err;
}
- /* register audio system: */
- err = line6_register_audio(&variax->line6);
+ /* initiate startup procedure: */
+ variax_startup1(variax);
+ return 0;
+}
+
+/*
+ Init workbench device (and clean up in case of failure).
+*/
+int line6_variax_init(struct usb_interface *interface,
+ struct usb_line6_variax *variax)
+{
+ int err = variax_try_init(interface, variax);
+
if (err < 0) {
variax_destruct(interface);
- return err;
}
- variax_activate_delayed(variax, VARIAX_ACTIVATE_DELAY);
- line6_startup_delayed(&variax->dumpreq, VARIAX_STARTUP_DELAY,
- variax_startup_timeout, variax);
- return 0;
+ return err;
}
/*
Workbench device disconnected.
*/
-void variax_disconnect(struct usb_interface *interface)
+void line6_variax_disconnect(struct usb_interface *interface)
{
struct device *dev;
@@ -550,7 +646,7 @@
if (dev != NULL) {
/* remove sysfs entries: */
- variax_remove_files(0, 0, dev);
+ line6_variax_remove_files(0, 0, dev);
device_remove_file(dev, &dev_attr_model);
device_remove_file(dev, &dev_attr_volume);
device_remove_file(dev, &dev_attr_tone);
@@ -558,7 +654,8 @@
device_remove_file(dev, &dev_attr_bank);
device_remove_file(dev, &dev_attr_dump);
device_remove_file(dev, &dev_attr_active);
-#if CREATE_RAW_FILE
+ device_remove_file(dev, &dev_attr_guitar);
+#ifdef CONFIG_LINE6_USB_RAW
device_remove_file(dev, &dev_attr_raw);
device_remove_file(dev, &dev_attr_raw2);
#endif