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Diffstat (limited to 'sound/usb/line6/driver.c')
-rw-r--r--sound/usb/line6/driver.c98
1 files changed, 48 insertions, 50 deletions
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index 60674ce4879b..e9eb5c74d6c7 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -2,7 +2,7 @@
/*
* Line 6 Linux USB driver
*
- * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 Markus Grabner (line6@grabner-graz.at)
*/
#include <linux/kernel.h>
@@ -20,7 +20,7 @@
#include "midi.h"
#include "playback.h"
-#define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>"
+#define DRIVER_AUTHOR "Markus Grabner <line6@grabner-graz.at>"
#define DRIVER_DESC "Line 6 USB Driver"
/*
@@ -113,12 +113,12 @@ int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
retval = usb_interrupt_msg(line6->usbdev,
usb_sndintpipe(line6->usbdev, properties->ep_ctrl_w),
(char *)frag_buf, frag_size,
- &partial, LINE6_TIMEOUT * HZ);
+ &partial, LINE6_TIMEOUT);
} else {
retval = usb_bulk_msg(line6->usbdev,
usb_sndbulkpipe(line6->usbdev, properties->ep_ctrl_w),
(char *)frag_buf, frag_size,
- &partial, LINE6_TIMEOUT * HZ);
+ &partial, LINE6_TIMEOUT);
}
if (retval) {
@@ -202,7 +202,7 @@ int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer,
struct urb *urb;
/* create message: */
- msg = kmalloc(sizeof(struct message), GFP_ATOMIC);
+ msg = kzalloc(sizeof(struct message), GFP_ATOMIC);
if (msg == NULL)
return -ENOMEM;
@@ -286,12 +286,14 @@ static void line6_data_received(struct urb *urb)
{
struct usb_line6 *line6 = (struct usb_line6 *)urb->context;
struct midi_buffer *mb = &line6->line6midi->midibuf_in;
+ unsigned long flags;
int done;
if (urb->status == -ESHUTDOWN)
return;
if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) {
+ spin_lock_irqsave(&line6->line6midi->lock, flags);
done =
line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length);
@@ -300,11 +302,15 @@ static void line6_data_received(struct urb *urb)
dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n",
done, urb->actual_length);
}
+ spin_unlock_irqrestore(&line6->line6midi->lock, flags);
for (;;) {
+ spin_lock_irqsave(&line6->line6midi->lock, flags);
done =
line6_midibuf_read(mb, line6->buffer_message,
- LINE6_MIDI_MESSAGE_MAXLEN);
+ LINE6_MIDI_MESSAGE_MAXLEN,
+ LINE6_MIDIBUF_READ_RX);
+ spin_unlock_irqrestore(&line6->line6midi->lock, flags);
if (done <= 0)
break;
@@ -337,23 +343,18 @@ int line6_read_data(struct usb_line6 *line6, unsigned address, void *data,
{
struct usb_device *usbdev = line6->usbdev;
int ret;
- unsigned char *len;
+ u8 len;
unsigned count;
if (address > 0xffff || datalen > 0xff)
return -EINVAL;
- len = kmalloc(1, GFP_KERNEL);
- if (!len)
- return -ENOMEM;
-
/* query the serial number: */
- ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- (datalen << 8) | 0x21, address,
- NULL, 0, LINE6_TIMEOUT * HZ);
-
- if (ret < 0) {
+ ret = usb_control_msg_send(usbdev, 0, 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ (datalen << 8) | 0x21, address, NULL, 0,
+ LINE6_TIMEOUT, GFP_KERNEL);
+ if (ret) {
dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
goto exit;
}
@@ -362,45 +363,42 @@ int line6_read_data(struct usb_line6 *line6, unsigned address, void *data,
for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
mdelay(LINE6_READ_WRITE_STATUS_DELAY);
- ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE |
- USB_DIR_IN,
- 0x0012, 0x0000, len, 1,
- LINE6_TIMEOUT * HZ);
- if (ret < 0) {
+ ret = usb_control_msg_recv(usbdev, 0, 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x0012, 0x0000, &len, 1,
+ LINE6_TIMEOUT, GFP_KERNEL);
+ if (ret) {
dev_err(line6->ifcdev,
"receive length failed (error %d)\n", ret);
goto exit;
}
- if (*len != 0xff)
+ if (len != 0xff)
break;
}
ret = -EIO;
- if (*len == 0xff) {
+ if (len == 0xff) {
dev_err(line6->ifcdev, "read failed after %d retries\n",
count);
goto exit;
- } else if (*len != datalen) {
+ } else if (len != datalen) {
/* should be equal or something went wrong */
dev_err(line6->ifcdev,
"length mismatch (expected %d, got %d)\n",
- (int)datalen, (int)*len);
+ (int)datalen, len);
goto exit;
}
/* receive the result: */
- ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0x0013, 0x0000, data, datalen,
- LINE6_TIMEOUT * HZ);
-
- if (ret < 0)
+ ret = usb_control_msg_recv(usbdev, 0, 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x0013, 0x0000, data, datalen, LINE6_TIMEOUT,
+ GFP_KERNEL);
+ if (ret)
dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
exit:
- kfree(len);
return ret;
}
EXPORT_SYMBOL_GPL(line6_read_data);
@@ -423,12 +421,11 @@ int line6_write_data(struct usb_line6 *line6, unsigned address, void *data,
if (!status)
return -ENOMEM;
- ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- 0x0022, address, data, datalen,
- LINE6_TIMEOUT * HZ);
-
- if (ret < 0) {
+ ret = usb_control_msg_send(usbdev, 0, 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ 0x0022, address, data, datalen, LINE6_TIMEOUT,
+ GFP_KERNEL);
+ if (ret) {
dev_err(line6->ifcdev,
"write request failed (error %d)\n", ret);
goto exit;
@@ -437,14 +434,11 @@ int line6_write_data(struct usb_line6 *line6, unsigned address, void *data,
for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
mdelay(LINE6_READ_WRITE_STATUS_DELAY);
- ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
- 0x67,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE |
- USB_DIR_IN,
- 0x0012, 0x0000,
- status, 1, LINE6_TIMEOUT * HZ);
-
- if (ret < 0) {
+ ret = usb_control_msg_recv(usbdev, 0, 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x0012, 0x0000, status, 1, LINE6_TIMEOUT,
+ GFP_KERNEL);
+ if (ret) {
dev_err(line6->ifcdev,
"receiving status failed (error %d)\n", ret);
goto exit;
@@ -699,7 +693,7 @@ static int line6_init_cap_control(struct usb_line6 *line6)
int ret;
/* initialize USB buffers: */
- line6->buffer_listen = kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL);
+ line6->buffer_listen = kzalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL);
if (!line6->buffer_listen)
return -ENOMEM;
@@ -708,9 +702,13 @@ static int line6_init_cap_control(struct usb_line6 *line6)
return -ENOMEM;
if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) {
- line6->buffer_message = kmalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL);
+ line6->buffer_message = kzalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL);
if (!line6->buffer_message)
return -ENOMEM;
+
+ ret = line6_init_midi(line6);
+ if (ret < 0)
+ return ret;
} else {
ret = line6_hwdep_init(line6);
if (ret < 0)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.