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Message-Id: <3fca8bd5dce632bc2a24020fff821e3afacd20a1.1497030881.git.joe@perches.com>
Date: Fri, 9 Jun 2017 10:54:57 -0700
From: Joe Perches <joe@...ches.com>
To: linux-kernel@...r.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-media@...r.kernel.org
Subject: [PATCH] stkwebcam: Use more common logging styles
Convert STK_<LEVEL> to pr_<level> to use the typical kernel logging.
Add a define for pr_fmt. No change in logging output.
Miscellanea:
o Remove now unused PREFIX and STK_<LEVEL> macros
o Realign arguments
o Use pr_<level>_ratelimited
o Add a few missing newlines to formats
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/media/usb/stkwebcam/stk-sensor.c | 32 ++++++++-------
drivers/media/usb/stkwebcam/stk-webcam.c | 70 ++++++++++++++++----------------
drivers/media/usb/stkwebcam/stk-webcam.h | 6 ---
3 files changed, 52 insertions(+), 56 deletions(-)
diff --git a/drivers/media/usb/stkwebcam/stk-sensor.c b/drivers/media/usb/stkwebcam/stk-sensor.c
index 985af9933c7e..c1d4505f84ea 100644
--- a/drivers/media/usb/stkwebcam/stk-sensor.c
+++ b/drivers/media/usb/stkwebcam/stk-sensor.c
@@ -41,6 +41,8 @@
/* It seems the i2c bus is controlled with these registers */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include "stk-webcam.h"
#define STK_IIC_BASE (0x0200)
@@ -239,8 +241,8 @@ static int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val)
} while (tmpval == 0 && i < MAX_RETRIES);
if (tmpval != STK_IIC_STAT_TX_OK) {
if (tmpval)
- STK_ERROR("stk_sensor_outb failed, status=0x%02x\n",
- tmpval);
+ pr_err("stk_sensor_outb failed, status=0x%02x\n",
+ tmpval);
return 1;
} else
return 0;
@@ -262,8 +264,8 @@ static int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val)
} while (tmpval == 0 && i < MAX_RETRIES);
if (tmpval != STK_IIC_STAT_RX_OK) {
if (tmpval)
- STK_ERROR("stk_sensor_inb failed, status=0x%02x\n",
- tmpval);
+ pr_err("stk_sensor_inb failed, status=0x%02x\n",
+ tmpval);
return 1;
}
@@ -366,29 +368,29 @@ int stk_sensor_init(struct stk_camera *dev)
if (stk_camera_write_reg(dev, STK_IIC_ENABLE, STK_IIC_ENABLE_YES)
|| stk_camera_write_reg(dev, STK_IIC_ADDR, SENSOR_ADDRESS)
|| stk_sensor_outb(dev, REG_COM7, COM7_RESET)) {
- STK_ERROR("Sensor resetting failed\n");
+ pr_err("Sensor resetting failed\n");
return -ENODEV;
}
msleep(10);
/* Read the manufacturer ID: ov = 0x7FA2 */
if (stk_sensor_inb(dev, REG_MIDH, &idh)
|| stk_sensor_inb(dev, REG_MIDL, &idl)) {
- STK_ERROR("Strange error reading sensor ID\n");
+ pr_err("Strange error reading sensor ID\n");
return -ENODEV;
}
if (idh != 0x7f || idl != 0xa2) {
- STK_ERROR("Huh? you don't have a sensor from ovt\n");
+ pr_err("Huh? you don't have a sensor from ovt\n");
return -ENODEV;
}
if (stk_sensor_inb(dev, REG_PID, &idh)
|| stk_sensor_inb(dev, REG_VER, &idl)) {
- STK_ERROR("Could not read sensor model\n");
+ pr_err("Could not read sensor model\n");
return -ENODEV;
}
stk_sensor_write_regvals(dev, ov_initvals);
msleep(10);
- STK_INFO("OmniVision sensor detected, id %02X%02X at address %x\n",
- idh, idl, SENSOR_ADDRESS);
+ pr_info("OmniVision sensor detected, id %02X%02X at address %x\n",
+ idh, idl, SENSOR_ADDRESS);
return 0;
}
@@ -520,7 +522,8 @@ int stk_sensor_configure(struct stk_camera *dev)
case MODE_SXGA: com7 = COM7_FMT_SXGA;
dummylines = 0;
break;
- default: STK_ERROR("Unsupported mode %d\n", dev->vsettings.mode);
+ default:
+ pr_err("Unsupported mode %d\n", dev->vsettings.mode);
return -EFAULT;
}
switch (dev->vsettings.palette) {
@@ -544,7 +547,8 @@ int stk_sensor_configure(struct stk_camera *dev)
com7 |= COM7_PBAYER;
rv = ov_fmt_bayer;
break;
- default: STK_ERROR("Unsupported colorspace\n");
+ default:
+ pr_err("Unsupported colorspace\n");
return -EFAULT;
}
/*FIXME sometimes the sensor go to a bad state
@@ -564,7 +568,7 @@ int stk_sensor_configure(struct stk_camera *dev)
switch (dev->vsettings.mode) {
case MODE_VGA:
if (stk_sensor_set_hw(dev, 302, 1582, 6, 486))
- STK_ERROR("stk_sensor_set_hw failed (VGA)\n");
+ pr_err("stk_sensor_set_hw failed (VGA)\n");
break;
case MODE_SXGA:
case MODE_CIF:
@@ -572,7 +576,7 @@ int stk_sensor_configure(struct stk_camera *dev)
case MODE_QCIF:
/*FIXME These settings seem ignored by the sensor
if (stk_sensor_set_hw(dev, 220, 1500, 10, 1034))
- STK_ERROR("stk_sensor_set_hw failed (SXGA)\n");
+ pr_err("stk_sensor_set_hw failed (SXGA)\n");
*/
break;
}
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
index 6e7fc36b658f..90d4a08cda31 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -18,6 +18,8 @@
* GNU General Public License for more details.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -175,15 +177,15 @@ static int stk_start_stream(struct stk_camera *dev)
if (!is_present(dev))
return -ENODEV;
if (!is_memallocd(dev) || !is_initialised(dev)) {
- STK_ERROR("FIXME: Buffers are not allocated\n");
+ pr_err("FIXME: Buffers are not allocated\n");
return -EFAULT;
}
ret = usb_set_interface(dev->udev, 0, 5);
if (ret < 0)
- STK_ERROR("usb_set_interface failed !\n");
+ pr_err("usb_set_interface failed !\n");
if (stk_sensor_wakeup(dev))
- STK_ERROR("error awaking the sensor\n");
+ pr_err("error awaking the sensor\n");
stk_camera_read_reg(dev, 0x0116, &value_116);
stk_camera_read_reg(dev, 0x0117, &value_117);
@@ -224,9 +226,9 @@ static int stk_stop_stream(struct stk_camera *dev)
unset_streaming(dev);
if (usb_set_interface(dev->udev, 0, 0))
- STK_ERROR("usb_set_interface failed !\n");
+ pr_err("usb_set_interface failed !\n");
if (stk_sensor_sleep(dev))
- STK_ERROR("error suspending the sensor\n");
+ pr_err("error suspending the sensor\n");
}
return 0;
}
@@ -313,7 +315,7 @@ static void stk_isoc_handler(struct urb *urb)
dev = (struct stk_camera *) urb->context;
if (dev == NULL) {
- STK_ERROR("isoc_handler called with NULL device !\n");
+ pr_err("isoc_handler called with NULL device !\n");
return;
}
@@ -326,14 +328,13 @@ static void stk_isoc_handler(struct urb *urb)
spin_lock_irqsave(&dev->spinlock, flags);
if (urb->status != -EINPROGRESS && urb->status != 0) {
- STK_ERROR("isoc_handler: urb->status == %d\n", urb->status);
+ pr_err("isoc_handler: urb->status == %d\n", urb->status);
goto resubmit;
}
if (list_empty(&dev->sio_avail)) {
/*FIXME Stop streaming after a while */
- (void) (printk_ratelimit() &&
- STK_ERROR("isoc_handler without available buffer!\n"));
+ pr_err_ratelimited("isoc_handler without available buffer!\n");
goto resubmit;
}
fb = list_first_entry(&dev->sio_avail,
@@ -343,8 +344,8 @@ static void stk_isoc_handler(struct urb *urb)
for (i = 0; i < urb->number_of_packets; i++) {
if (urb->iso_frame_desc[i].status != 0) {
if (urb->iso_frame_desc[i].status != -EXDEV)
- STK_ERROR("Frame %d has error %d\n", i,
- urb->iso_frame_desc[i].status);
+ pr_err("Frame %d has error %d\n",
+ i, urb->iso_frame_desc[i].status);
continue;
}
framelen = urb->iso_frame_desc[i].actual_length;
@@ -368,9 +369,8 @@ static void stk_isoc_handler(struct urb *urb)
/* This marks a new frame */
if (fb->v4lbuf.bytesused != 0
&& fb->v4lbuf.bytesused != dev->frame_size) {
- (void) (printk_ratelimit() &&
- STK_ERROR("frame %d, bytesused=%d, skipping\n",
- i, fb->v4lbuf.bytesused));
+ pr_err_ratelimited("frame %d, bytesused=%d, skipping\n",
+ i, fb->v4lbuf.bytesused);
fb->v4lbuf.bytesused = 0;
fill = fb->buffer;
} else if (fb->v4lbuf.bytesused == dev->frame_size) {
@@ -395,8 +395,7 @@ static void stk_isoc_handler(struct urb *urb)
/* Our buffer is full !!! */
if (framelen + fb->v4lbuf.bytesused > dev->frame_size) {
- (void) (printk_ratelimit() &&
- STK_ERROR("Frame buffer overflow, lost sync\n"));
+ pr_err_ratelimited("Frame buffer overflow, lost sync\n");
/*FIXME Do something here? */
continue;
}
@@ -414,8 +413,8 @@ static void stk_isoc_handler(struct urb *urb)
urb->dev = dev->udev;
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret != 0) {
- STK_ERROR("Error (%d) re-submitting urb in stk_isoc_handler.\n",
- ret);
+ pr_err("Error (%d) re-submitting urb in stk_isoc_handler\n",
+ ret);
}
}
@@ -433,32 +432,31 @@ static int stk_prepare_iso(struct stk_camera *dev)
udev = dev->udev;
if (dev->isobufs)
- STK_ERROR("isobufs already allocated. Bad\n");
+ pr_err("isobufs already allocated. Bad\n");
else
dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs),
GFP_KERNEL);
if (dev->isobufs == NULL) {
- STK_ERROR("Unable to allocate iso buffers\n");
+ pr_err("Unable to allocate iso buffers\n");
return -ENOMEM;
}
for (i = 0; i < MAX_ISO_BUFS; i++) {
if (dev->isobufs[i].data == NULL) {
kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL);
if (kbuf == NULL) {
- STK_ERROR("Failed to allocate iso buffer %d\n",
- i);
+ pr_err("Failed to allocate iso buffer %d\n", i);
goto isobufs_out;
}
dev->isobufs[i].data = kbuf;
} else
- STK_ERROR("isobuf data already allocated\n");
+ pr_err("isobuf data already allocated\n");
if (dev->isobufs[i].urb == NULL) {
urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL);
if (urb == NULL)
goto isobufs_out;
dev->isobufs[i].urb = urb;
} else {
- STK_ERROR("Killing URB\n");
+ pr_err("Killing URB\n");
usb_kill_urb(dev->isobufs[i].urb);
urb = dev->isobufs[i].urb;
}
@@ -567,7 +565,7 @@ static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs)
{
int i;
if (dev->sio_bufs != NULL)
- STK_ERROR("sio_bufs already allocated\n");
+ pr_err("sio_bufs already allocated\n");
else {
dev->sio_bufs = kzalloc(n_sbufs * sizeof(struct stk_sio_buffer),
GFP_KERNEL);
@@ -690,7 +688,7 @@ static ssize_t stk_read(struct file *fp, char __user *buf,
spin_lock_irqsave(&dev->spinlock, flags);
if (list_empty(&dev->sio_full)) {
spin_unlock_irqrestore(&dev->spinlock, flags);
- STK_ERROR("BUG: No siobufs ready\n");
+ pr_err("BUG: No siobufs ready\n");
return 0;
}
sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list);
@@ -907,7 +905,7 @@ static int stk_vidioc_g_fmt_vid_cap(struct file *filp,
stk_sizes[i].m != dev->vsettings.mode; i++)
;
if (i == ARRAY_SIZE(stk_sizes)) {
- STK_ERROR("ERROR: mode invalid\n");
+ pr_err("ERROR: mode invalid\n");
return -EINVAL;
}
pix_format->width = stk_sizes[i].w;
@@ -985,7 +983,7 @@ static int stk_setup_format(struct stk_camera *dev)
stk_sizes[i].m != dev->vsettings.mode)
i++;
if (i == ARRAY_SIZE(stk_sizes)) {
- STK_ERROR("Something is broken in %s\n", __func__);
+ pr_err("Something is broken in %s\n", __func__);
return -EFAULT;
}
/* This registers controls some timings, not sure of what. */
@@ -1241,7 +1239,7 @@ static void stk_v4l_dev_release(struct video_device *vd)
struct stk_camera *dev = vdev_to_camera(vd);
if (dev->sio_bufs != NULL || dev->isobufs != NULL)
- STK_ERROR("We are leaking memory\n");
+ pr_err("We are leaking memory\n");
usb_put_intf(dev->interface);
kfree(dev);
}
@@ -1264,10 +1262,10 @@ static int stk_register_video_device(struct stk_camera *dev)
video_set_drvdata(&dev->vdev, dev);
err = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
if (err)
- STK_ERROR("v4l registration failed\n");
+ pr_err("v4l registration failed\n");
else
- STK_INFO("Syntek USB2.0 Camera is now controlling device %s\n",
- video_device_node_name(&dev->vdev));
+ pr_info("Syntek USB2.0 Camera is now controlling device %s\n",
+ video_device_node_name(&dev->vdev));
return err;
}
@@ -1288,7 +1286,7 @@ static int stk_camera_probe(struct usb_interface *interface,
dev = kzalloc(sizeof(struct stk_camera), GFP_KERNEL);
if (dev == NULL) {
- STK_ERROR("Out of memory !\n");
+ pr_err("Out of memory !\n");
return -ENOMEM;
}
err = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
@@ -1352,7 +1350,7 @@ static int stk_camera_probe(struct usb_interface *interface,
}
}
if (!dev->isoc_ep) {
- STK_ERROR("Could not find isoc-in endpoint");
+ pr_err("Could not find isoc-in endpoint\n");
err = -ENODEV;
goto error;
}
@@ -1387,8 +1385,8 @@ static void stk_camera_disconnect(struct usb_interface *interface)
wake_up_interruptible(&dev->wait_frame);
- STK_INFO("Syntek USB2.0 Camera release resources device %s\n",
- video_device_node_name(&dev->vdev));
+ pr_info("Syntek USB2.0 Camera release resources device %s\n",
+ video_device_node_name(&dev->vdev));
video_unregister_device(&dev->vdev);
v4l2_ctrl_handler_free(&dev->hdl);
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.h b/drivers/media/usb/stkwebcam/stk-webcam.h
index 0284120ce246..5cecbdc97573 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.h
+++ b/drivers/media/usb/stkwebcam/stk-webcam.h
@@ -31,12 +31,6 @@
#define ISO_MAX_FRAME_SIZE 3 * 1024
#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
-
-#define PREFIX "stkwebcam: "
-#define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args)
-#define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args)
-#define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args)
-
struct stk_iso_buf {
void *data;
int length;
--
2.10.0.rc2.1.g053435c
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