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path: root/drivers/usb/gadget/serial.c
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Diffstat (limited to 'drivers/usb/gadget/serial.c')
-rw-r--r--drivers/usb/gadget/serial.c153
1 files changed, 79 insertions, 74 deletions
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index f5738eb8e76..f5c3896b1d9 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -89,9 +89,9 @@ static int debug = 1;
#endif
#define gs_debug(format, arg...) \
- do { if (debug) printk(KERN_DEBUG format, ## arg); } while(0)
+ do { if (debug) pr_debug(format, ## arg); } while (0)
#define gs_debug_level(level, format, arg...) \
- do { if (debug>=level) printk(KERN_DEBUG format, ## arg); } while(0)
+ do { if (debug >= level) pr_debug(format, ## arg); } while (0)
/* Thanks to NetChip Technologies for donating this product ID.
@@ -553,7 +553,8 @@ static int __init gs_module_init(void)
retval = usb_gadget_register_driver(&gs_gadget_driver);
if (retval) {
- printk(KERN_ERR "gs_module_init: cannot register gadget driver, ret=%d\n", retval);
+ pr_err("gs_module_init: cannot register gadget driver, "
+ "ret=%d\n", retval);
return retval;
}
@@ -579,11 +580,13 @@ static int __init gs_module_init(void)
if (retval) {
usb_gadget_unregister_driver(&gs_gadget_driver);
put_tty_driver(gs_tty_driver);
- printk(KERN_ERR "gs_module_init: cannot register tty driver, ret=%d\n", retval);
+ pr_err("gs_module_init: cannot register tty driver, "
+ "ret=%d\n", retval);
return retval;
}
- printk(KERN_INFO "gs_module_init: %s %s loaded\n", GS_LONG_NAME, GS_VERSION_STR);
+ pr_info("gs_module_init: %s %s loaded\n",
+ GS_LONG_NAME, GS_VERSION_STR);
return 0;
}
@@ -598,7 +601,8 @@ static void __exit gs_module_exit(void)
put_tty_driver(gs_tty_driver);
usb_gadget_unregister_driver(&gs_gadget_driver);
- printk(KERN_INFO "gs_module_exit: %s %s unloaded\n", GS_LONG_NAME, GS_VERSION_STR);
+ pr_info("gs_module_exit: %s %s unloaded\n",
+ GS_LONG_NAME, GS_VERSION_STR);
}
/* TTY Driver */
@@ -621,7 +625,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
gs_debug("gs_open: (%d,%p,%p)\n", port_num, tty, file);
if (port_num < 0 || port_num >= GS_NUM_PORTS) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) invalid port number\n",
+ pr_err("gs_open: (%d,%p,%p) invalid port number\n",
port_num, tty, file);
return -ENODEV;
}
@@ -629,15 +633,14 @@ static int gs_open(struct tty_struct *tty, struct file *file)
dev = gs_device;
if (dev == NULL) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) NULL device pointer\n",
+ pr_err("gs_open: (%d,%p,%p) NULL device pointer\n",
port_num, tty, file);
return -ENODEV;
}
mtx = &gs_open_close_lock[port_num];
if (mutex_lock_interruptible(mtx)) {
- printk(KERN_ERR
- "gs_open: (%d,%p,%p) interrupted waiting for mutex\n",
+ pr_err("gs_open: (%d,%p,%p) interrupted waiting for mutex\n",
port_num, tty, file);
return -ERESTARTSYS;
}
@@ -645,8 +648,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
spin_lock_irqsave(&dev->dev_lock, flags);
if (dev->dev_config == GS_NO_CONFIG_ID) {
- printk(KERN_ERR
- "gs_open: (%d,%p,%p) device is not connected\n",
+ pr_err("gs_open: (%d,%p,%p) device is not connected\n",
port_num, tty, file);
ret = -ENODEV;
goto exit_unlock_dev;
@@ -655,7 +657,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
port = dev->dev_port[port_num];
if (port == NULL) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) NULL port pointer\n",
+ pr_err("gs_open: (%d,%p,%p) NULL port pointer\n",
port_num, tty, file);
ret = -ENODEV;
goto exit_unlock_dev;
@@ -665,7 +667,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
spin_unlock(&dev->dev_lock);
if (port->port_dev == NULL) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) port disconnected (1)\n",
+ pr_err("gs_open: (%d,%p,%p) port disconnected (1)\n",
port_num, tty, file);
ret = -EIO;
goto exit_unlock_port;
@@ -692,8 +694,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
/* might have been disconnected while asleep, check */
if (port->port_dev == NULL) {
- printk(KERN_ERR
- "gs_open: (%d,%p,%p) port disconnected (2)\n",
+ pr_err("gs_open: (%d,%p,%p) port disconnected (2)\n",
port_num, tty, file);
port->port_in_use = 0;
ret = -EIO;
@@ -701,7 +702,8 @@ static int gs_open(struct tty_struct *tty, struct file *file)
}
if ((port->port_write_buf=buf) == NULL) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) cannot allocate port write buffer\n",
+ pr_err("gs_open: (%d,%p,%p) cannot allocate "
+ "port write buffer\n",
port_num, tty, file);
port->port_in_use = 0;
ret = -ENOMEM;
@@ -714,7 +716,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
/* might have been disconnected while asleep, check */
if (port->port_dev == NULL) {
- printk(KERN_ERR "gs_open: (%d,%p,%p) port disconnected (3)\n",
+ pr_err("gs_open: (%d,%p,%p) port disconnected (3)\n",
port_num, tty, file);
port->port_in_use = 0;
ret = -EIO;
@@ -762,7 +764,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
struct mutex *mtx;
if (port == NULL) {
- printk(KERN_ERR "gs_close: NULL port pointer\n");
+ pr_err("gs_close: NULL port pointer\n");
return;
}
@@ -774,8 +776,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
spin_lock_irq(&port->port_lock);
if (port->port_open_count == 0) {
- printk(KERN_ERR
- "gs_close: (%d,%p,%p) port is already closed\n",
+ pr_err("gs_close: (%d,%p,%p) port is already closed\n",
port->port_num, tty, file);
goto exit;
}
@@ -837,7 +838,7 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
int ret;
if (port == NULL) {
- printk(KERN_ERR "gs_write: NULL port pointer\n");
+ pr_err("gs_write: NULL port pointer\n");
return -EIO;
}
@@ -850,14 +851,14 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
spin_lock_irqsave(&port->port_lock, flags);
if (port->port_dev == NULL) {
- printk(KERN_ERR "gs_write: (%d,%p) port is not connected\n",
+ pr_err("gs_write: (%d,%p) port is not connected\n",
port->port_num, tty);
ret = -EIO;
goto exit;
}
if (port->port_open_count == 0) {
- printk(KERN_ERR "gs_write: (%d,%p) port is closed\n",
+ pr_err("gs_write: (%d,%p) port is closed\n",
port->port_num, tty);
ret = -EBADF;
goto exit;
@@ -888,7 +889,7 @@ static void gs_put_char(struct tty_struct *tty, unsigned char ch)
struct gs_port *port = tty->driver_data;
if (port == NULL) {
- printk(KERN_ERR "gs_put_char: NULL port pointer\n");
+ pr_err("gs_put_char: NULL port pointer\n");
return;
}
@@ -898,13 +899,13 @@ static void gs_put_char(struct tty_struct *tty, unsigned char ch)
spin_lock_irqsave(&port->port_lock, flags);
if (port->port_dev == NULL) {
- printk(KERN_ERR "gs_put_char: (%d,%p) port is not connected\n",
+ pr_err("gs_put_char: (%d,%p) port is not connected\n",
port->port_num, tty);
goto exit;
}
if (port->port_open_count == 0) {
- printk(KERN_ERR "gs_put_char: (%d,%p) port is closed\n",
+ pr_err("gs_put_char: (%d,%p) port is closed\n",
port->port_num, tty);
goto exit;
}
@@ -924,7 +925,7 @@ static void gs_flush_chars(struct tty_struct *tty)
struct gs_port *port = tty->driver_data;
if (port == NULL) {
- printk(KERN_ERR "gs_flush_chars: NULL port pointer\n");
+ pr_err("gs_flush_chars: NULL port pointer\n");
return;
}
@@ -933,14 +934,13 @@ static void gs_flush_chars(struct tty_struct *tty)
spin_lock_irqsave(&port->port_lock, flags);
if (port->port_dev == NULL) {
- printk(KERN_ERR
- "gs_flush_chars: (%d,%p) port is not connected\n",
+ pr_err("gs_flush_chars: (%d,%p) port is not connected\n",
port->port_num, tty);
goto exit;
}
if (port->port_open_count == 0) {
- printk(KERN_ERR "gs_flush_chars: (%d,%p) port is closed\n",
+ pr_err("gs_flush_chars: (%d,%p) port is closed\n",
port->port_num, tty);
goto exit;
}
@@ -1038,7 +1038,7 @@ static int gs_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd,
struct gs_port *port = tty->driver_data;
if (port == NULL) {
- printk(KERN_ERR "gs_ioctl: NULL port pointer\n");
+ pr_err("gs_ioctl: NULL port pointer\n");
return -EIO;
}
@@ -1076,7 +1076,7 @@ static int gs_send(struct gs_dev *dev)
struct gs_req_entry *req_entry;
if (dev == NULL) {
- printk(KERN_ERR "gs_send: NULL device pointer\n");
+ pr_err("gs_send: NULL device pointer\n");
return -ENODEV;
}
@@ -1103,7 +1103,7 @@ static int gs_send(struct gs_dev *dev)
req->length = len;
spin_unlock_irqrestore(&dev->dev_lock, flags);
if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
- printk(KERN_ERR
+ pr_err(
"gs_send: cannot queue read request, ret=%d\n",
ret);
spin_lock_irqsave(&dev->dev_lock, flags);
@@ -1144,9 +1144,7 @@ static int gs_send_packet(struct gs_dev *dev, char *packet, unsigned int size)
port = dev->dev_port[0];
if (port == NULL) {
- printk(KERN_ERR
- "gs_send_packet: port=%d, NULL port pointer\n",
- 0);
+ pr_err("gs_send_packet: port=%d, NULL port pointer\n", 0);
return -EIO;
}
@@ -1193,7 +1191,7 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
port = dev->dev_port[0];
if (port == NULL) {
- printk(KERN_ERR "gs_recv_packet: port=%d, NULL port pointer\n",
+ pr_err("gs_recv_packet: port=%d, NULL port pointer\n",
port->port_num);
return -EIO;
}
@@ -1201,7 +1199,7 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
spin_lock(&port->port_lock);
if (port->port_open_count == 0) {
- printk(KERN_ERR "gs_recv_packet: port=%d, port is closed\n",
+ pr_err("gs_recv_packet: port=%d, port is closed\n",
port->port_num);
ret = -EIO;
goto exit;
@@ -1211,14 +1209,14 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
tty = port->port_tty;
if (tty == NULL) {
- printk(KERN_ERR "gs_recv_packet: port=%d, NULL tty pointer\n",
+ pr_err("gs_recv_packet: port=%d, NULL tty pointer\n",
port->port_num);
ret = -EIO;
goto exit;
}
if (port->port_tty->magic != TTY_MAGIC) {
- printk(KERN_ERR "gs_recv_packet: port=%d, bad tty magic\n",
+ pr_err("gs_recv_packet: port=%d, bad tty magic\n",
port->port_num);
ret = -EIO;
goto exit;
@@ -1245,7 +1243,7 @@ static void gs_read_complete(struct usb_ep *ep, struct usb_request *req)
struct gs_dev *dev = ep->driver_data;
if (dev == NULL) {
- printk(KERN_ERR "gs_read_complete: NULL device pointer\n");
+ pr_err("gs_read_complete: NULL device pointer\n");
return;
}
@@ -1256,7 +1254,7 @@ static void gs_read_complete(struct usb_ep *ep, struct usb_request *req)
requeue:
req->length = ep->maxpacket;
if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
- printk(KERN_ERR
+ pr_err(
"gs_read_complete: cannot queue read request, ret=%d\n",
ret);
}
@@ -1270,7 +1268,7 @@ requeue:
default:
/* unexpected */
- printk(KERN_ERR
+ pr_err(
"gs_read_complete: unexpected status error, status=%d\n",
req->status);
goto requeue;
@@ -1287,7 +1285,7 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
struct gs_req_entry *gs_req = req->context;
if (dev == NULL) {
- printk(KERN_ERR "gs_write_complete: NULL device pointer\n");
+ pr_err("gs_write_complete: NULL device pointer\n");
return;
}
@@ -1296,8 +1294,7 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
/* normal completion */
requeue:
if (gs_req == NULL) {
- printk(KERN_ERR
- "gs_write_complete: NULL request pointer\n");
+ pr_err("gs_write_complete: NULL request pointer\n");
return;
}
@@ -1316,7 +1313,7 @@ requeue:
break;
default:
- printk(KERN_ERR
+ pr_err(
"gs_write_complete: unexpected status error, status=%d\n",
req->status);
goto requeue;
@@ -1351,7 +1348,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
gs_device_desc.bcdDevice =
cpu_to_le16(GS_VERSION_NUM | gcnum);
else {
- printk(KERN_WARNING "gs_bind: controller '%s' not recognized\n",
+ pr_warning("gs_bind: controller '%s' not recognized\n",
gadget->name);
/* unrecognized, but safe unless bulk is REALLY quirky */
gs_device_desc.bcdDevice =
@@ -1375,7 +1372,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
if (use_acm) {
ep = usb_ep_autoconfig(gadget, &gs_fullspeed_notify_desc);
if (!ep) {
- printk(KERN_ERR "gs_bind: cannot run ACM on %s\n", gadget->name);
+ pr_err("gs_bind: cannot run ACM on %s\n", gadget->name);
goto autoconf_fail;
}
gs_device_desc.idProduct = __constant_cpu_to_le16(
@@ -1425,7 +1422,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
set_gadget_data(gadget, dev);
if ((ret=gs_alloc_ports(dev, GFP_KERNEL)) != 0) {
- printk(KERN_ERR "gs_bind: cannot allocate ports\n");
+ pr_err("gs_bind: cannot allocate ports\n");
gs_unbind(gadget);
return ret;
}
@@ -1441,13 +1438,13 @@ static int __init gs_bind(struct usb_gadget *gadget)
gadget->ep0->driver_data = dev;
- printk(KERN_INFO "gs_bind: %s %s bound\n",
+ pr_info("gs_bind: %s %s bound\n",
GS_LONG_NAME, GS_VERSION_STR);
return 0;
autoconf_fail:
- printk(KERN_ERR "gs_bind: cannot autoconfigure on %s\n", gadget->name);
+ pr_err("gs_bind: cannot autoconfigure on %s\n", gadget->name);
return -ENODEV;
}
@@ -1480,7 +1477,7 @@ static void /* __init_or_exit */ gs_unbind(struct usb_gadget *gadget)
set_gadget_data(gadget, NULL);
}
- printk(KERN_INFO "gs_unbind: %s %s unbound\n", GS_LONG_NAME,
+ pr_info("gs_unbind: %s %s unbound\n", GS_LONG_NAME,
GS_VERSION_STR);
}
@@ -1513,7 +1510,8 @@ static int gs_setup(struct usb_gadget *gadget,
break;
default:
- printk(KERN_ERR "gs_setup: unknown request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
+ pr_err("gs_setup: unknown request, type=%02x, request=%02x, "
+ "value=%04x, index=%04x, length=%d\n",
ctrl->bRequestType, ctrl->bRequest,
wValue, wIndex, wLength);
break;
@@ -1526,7 +1524,7 @@ static int gs_setup(struct usb_gadget *gadget,
&& (ret % gadget->ep0->maxpacket) == 0;
ret = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
if (ret < 0) {
- printk(KERN_ERR "gs_setup: cannot queue response, ret=%d\n",
+ pr_err("gs_setup: cannot queue response, ret=%d\n",
ret);
req->status = 0;
gs_setup_complete(gadget->ep0, req);
@@ -1656,7 +1654,8 @@ set_interface_done:
break;
default:
- printk(KERN_ERR "gs_setup: unknown standard request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
+ pr_err("gs_setup: unknown standard request, type=%02x, "
+ "request=%02x, value=%04x, index=%04x, length=%d\n",
ctrl->bRequestType, ctrl->bRequest,
wValue, wIndex, wLength);
break;
@@ -1682,7 +1681,7 @@ static int gs_setup_class(struct usb_gadget *gadget,
* handler copy that data to port->port_line_coding (iff
* it's valid) and maybe pass it on. Until then, fail.
*/
- printk(KERN_WARNING "gs_setup: set_line_coding "
+ pr_warning("gs_setup: set_line_coding "
"unuspported\n");
break;
@@ -1702,12 +1701,12 @@ static int gs_setup_class(struct usb_gadget *gadget,
* handler use that to set the state (iff it's valid) and
* maybe pass it on. Until then, fail.
*/
- printk(KERN_WARNING "gs_setup: set_control_line_state "
+ pr_warning("gs_setup: set_control_line_state "
"unuspported\n");
break;
default:
- printk(KERN_ERR "gs_setup: unknown class request, "
+ pr_err("gs_setup: unknown class request, "
"type=%02x, request=%02x, value=%04x, "
"index=%04x, length=%d\n",
ctrl->bRequestType, ctrl->bRequest,
@@ -1724,7 +1723,8 @@ static int gs_setup_class(struct usb_gadget *gadget,
static void gs_setup_complete(struct usb_ep *ep, struct usb_request *req)
{
if (req->status || req->actual != req->length) {
- printk(KERN_ERR "gs_setup_complete: status error, status=%d, actual=%d, length=%d\n",
+ pr_err("gs_setup_complete: status error, status=%d, "
+ "actual=%d, length=%d\n",
req->status, req->actual, req->length);
}
}
@@ -1751,11 +1751,11 @@ static void gs_disconnect(struct usb_gadget *gadget)
/* re-allocate ports for the next connection */
if (gs_alloc_ports(dev, GFP_ATOMIC) != 0)
- printk(KERN_ERR "gs_disconnect: cannot re-allocate ports\n");
+ pr_err("gs_disconnect: cannot re-allocate ports\n");
spin_unlock_irqrestore(&dev->dev_lock, flags);
- printk(KERN_INFO "gs_disconnect: %s disconnected\n", GS_LONG_NAME);
+ pr_info("gs_disconnect: %s disconnected\n", GS_LONG_NAME);
}
/*
@@ -1778,7 +1778,7 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
struct gs_req_entry *req_entry;
if (dev == NULL) {
- printk(KERN_ERR "gs_set_config: NULL device pointer\n");
+ pr_err("gs_set_config: NULL device pointer\n");
return 0;
}
@@ -1823,7 +1823,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
dev->dev_notify_ep = ep;
dev->dev_notify_ep_desc = ep_desc;
} else {
- printk(KERN_ERR "gs_set_config: cannot enable notify endpoint %s, ret=%d\n",
+ pr_err("gs_set_config: cannot enable NOTIFY "
+ "endpoint %s, ret=%d\n",
ep->name, ret);
goto exit_reset_config;
}
@@ -1839,7 +1840,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
dev->dev_in_ep = ep;
dev->dev_in_ep_desc = ep_desc;
} else {
- printk(KERN_ERR "gs_set_config: cannot enable in endpoint %s, ret=%d\n",
+ pr_err("gs_set_config: cannot enable IN "
+ "endpoint %s, ret=%d\n",
ep->name, ret);
goto exit_reset_config;
}
@@ -1855,7 +1857,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
dev->dev_out_ep = ep;
dev->dev_out_ep_desc = ep_desc;
} else {
- printk(KERN_ERR "gs_set_config: cannot enable out endpoint %s, ret=%d\n",
+ pr_err("gs_set_config: cannot enable OUT "
+ "endpoint %s, ret=%d\n",
ep->name, ret);
goto exit_reset_config;
}
@@ -1865,7 +1868,7 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
if (dev->dev_in_ep == NULL || dev->dev_out_ep == NULL
|| (config != GS_BULK_CONFIG_ID && dev->dev_notify_ep == NULL)) {
- printk(KERN_ERR "gs_set_config: cannot find endpoints\n");
+ pr_err("gs_set_config: cannot find endpoints\n");
ret = -ENODEV;
goto exit_reset_config;
}
@@ -1876,11 +1879,12 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
if ((req=gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC))) {
req->complete = gs_read_complete;
if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
- printk(KERN_ERR "gs_set_config: cannot queue read request, ret=%d\n",
- ret);
+ pr_err("gs_set_config: cannot queue read "
+ "request, ret=%d\n", ret);
}
} else {
- printk(KERN_ERR "gs_set_config: cannot allocate read requests\n");
+ pr_err("gs_set_config: cannot allocate "
+ "read requests\n");
ret = -ENOMEM;
goto exit_reset_config;
}
@@ -1893,13 +1897,14 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
req_entry->re_req->complete = gs_write_complete;
list_add(&req_entry->re_entry, &dev->dev_req_list);
} else {
- printk(KERN_ERR "gs_set_config: cannot allocate write requests\n");
+ pr_err("gs_set_config: cannot allocate "
+ "write requests\n");
ret = -ENOMEM;
goto exit_reset_config;
}
}
- printk(KERN_INFO "gs_set_config: %s configured, %s speed %s config\n",
+ pr_info("gs_set_config: %s configured, %s speed %s config\n",
GS_LONG_NAME,
gadget->speed == USB_SPEED_HIGH ? "high" : "full",
config == GS_BULK_CONFIG_ID ? "BULK" : "CDC-ACM");
@@ -1926,7 +1931,7 @@ static void gs_reset_config(struct gs_dev *dev)
struct gs_req_entry *req_entry;
if (dev == NULL) {
- printk(KERN_ERR "gs_reset_config: NULL device pointer\n");
+ pr_err("gs_reset_config: NULL device pointer\n");
return;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-01 19:47:46 +0000