V4L/DVB (5884): zr36067: clean up debug function
Debugging cleanups to the zr36067 driver:
* Use module_param_named() to declare the debug parameter, so we can
use a single global variable to handle the debug level. This makes
the driver a bit smaller (by 648 bytes on x86_64), thanks to one
less level of indirection on every use.
* Change the debug parameter sysfs permissions, so that the debug
level can be adjusted at runtime, as is done in many other
media/video drivers.
* The debug level is between 0 and 5, not 0 and 4.
* Move the zr_debug export and dprintk macro definition to a header
file so that we don't have to define them in each source file.
* Simplify a duplicate test on zr_debug.
Note that zr_debug was subsequently renamed to debug_zr36067 to avoid
possible conflicts with other Zoran device drivers, on a suggestion
by Trent Piepho.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
index 73162a3..8e12ff80 100644
--- a/drivers/media/video/zoran_card.c
+++ b/drivers/media/video/zoran_card.c
@@ -145,10 +145,9 @@
MODULE_PARM_DESC(pass_through,
"Pass TV signal through to TV-out when idling");
-static int debug = 1;
-int *zr_debug = &debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0-4)");
+int zr36067_debug = 1;
+module_param_named(debug, zr36067_debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0-5)");
MODULE_DESCRIPTION("Zoran-36057/36067 JPEG codec driver");
MODULE_AUTHOR("Serguei Miridonov");
@@ -161,12 +160,6 @@
};
MODULE_DEVICE_TABLE(pci, zr36067_pci_tbl);
-#define dprintk(num, format, args...) \
- do { \
- if (*zr_debug >= num) \
- printk(format, ##args); \
- } while (0)
-
int zoran_num; /* number of Buzs in use */
struct zoran zoran[BUZ_MAX];
@@ -1075,7 +1068,7 @@
if (timeout) {
dprintk(1, ": time spent: %d\n", 1 * HZ - timeout);
}
- if (*zr_debug > 1)
+ if (zr36067_debug > 1)
print_interrupts(zr);
btwrite(icr, ZR36057_ICR);
}
@@ -1158,7 +1151,7 @@
goto exit_unregister;
zoran_init_hardware(zr);
- if (*zr_debug > 2)
+ if (zr36067_debug > 2)
detect_guest_activity(zr);
test_interrupts(zr);
if (!pass_through) {
@@ -1620,7 +1613,7 @@
}
/* random nonsense */
- dprintk(5, KERN_DEBUG "Jotti is een held!\n");
+ dprintk(6, KERN_DEBUG "Jotti is een held!\n");
/* some mainboards might not do PCI-PCI data transfer well */
if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL|PCIPCI_ALIMAGIK)) {
diff --git a/drivers/media/video/zoran_card.h b/drivers/media/video/zoran_card.h
index ad997c3..8444ca0 100644
--- a/drivers/media/video/zoran_card.h
+++ b/drivers/media/video/zoran_card.h
@@ -30,6 +30,14 @@
#ifndef __ZORAN_CARD_H__
#define __ZORAN_CARD_H__
+extern int zr36067_debug;
+
+#define dprintk(num, format, args...) \
+ do { \
+ if (zr36067_debug >= num) \
+ printk(format, ##args); \
+ } while (0)
+
/* Anybody who uses more than four? */
#define BUZ_MAX 4
extern int zoran_num;
diff --git a/drivers/media/video/zoran_device.c b/drivers/media/video/zoran_device.c
index ba2f4ed..dc1ec20 100644
--- a/drivers/media/video/zoran_device.c
+++ b/drivers/media/video/zoran_device.c
@@ -52,6 +52,7 @@
#include "videocodec.h"
#include "zoran.h"
#include "zoran_device.h"
+#include "zoran_card.h"
#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \
ZR36057_ISR_GIRQ1 | \
@@ -59,14 +60,6 @@
extern const struct zoran_format zoran_formats[];
-extern int *zr_debug;
-
-#define dprintk(num, format, args...) \
- do { \
- if (*zr_debug >= num) \
- printk(format, ##args); \
- } while (0)
-
static int lml33dpath = 0; /* 1 will use digital path in capture
* mode instead of analog. It can be
* used for picture adjustments using
@@ -174,7 +167,7 @@
static void
dump_guests (struct zoran *zr)
{
- if (*zr_debug > 2) {
+ if (zr36067_debug > 2) {
int i, guest[8];
for (i = 1; i < 8; i++) { // Don't read jpeg codec here
@@ -1271,7 +1264,7 @@
zr->num_errors++;
/* Report error */
- if (*zr_debug > 1 && zr->num_errors <= 8) {
+ if (zr36067_debug > 1 && zr->num_errors <= 8) {
long frame;
frame =
zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
@@ -1531,7 +1524,7 @@
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
- if (*zr_debug > 1 &&
+ if (zr36067_debug > 1 &&
(!zr->frame_num || zr->JPEG_error)) {
printk(KERN_INFO
"%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
@@ -1568,7 +1561,7 @@
zr->JPEG_missed;
}
- if (*zr_debug > 2 && zr->frame_num < 6) {
+ if (zr36067_debug > 2 && zr->frame_num < 6) {
int i;
printk("%s: seq=%ld stat_com:",
ZR_DEVNAME(zr), zr->jpg_seq_num);
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index 72a037b..377bb2d 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -200,14 +200,6 @@
// RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
-extern int *zr_debug;
-
-#define dprintk(num, format, args...) \
- do { \
- if (*zr_debug >= num) \
- printk(format, ##args); \
- } while (0)
-
extern int v4l_nbufs;
extern int v4l_bufsize;
extern int jpg_nbufs;
@@ -1106,12 +1098,10 @@
frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
/* buffer should now be in BUZ_STATE_DONE */
- if (*zr_debug > 0)
- if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
- dprintk(2,
- KERN_ERR
- "%s: jpg_sync() - internal state error\n",
- ZR_DEVNAME(zr));
+ if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
+ dprintk(2,
+ KERN_ERR "%s: jpg_sync() - internal state error\n",
+ ZR_DEVNAME(zr));
*bs = zr->jpg_buffers.buffer[frame].bs;
bs->frame = frame;
@@ -1389,7 +1379,7 @@
/* disable interrupts */
btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
- if (*zr_debug > 1)
+ if (zr36067_debug > 1)
print_interrupts(zr);
/* Overlay off */
diff --git a/drivers/media/video/zoran_procfs.c b/drivers/media/video/zoran_procfs.c
index 446ae8d..328ed6e 100644
--- a/drivers/media/video/zoran_procfs.c
+++ b/drivers/media/video/zoran_procfs.c
@@ -48,14 +48,7 @@
#include "videocodec.h"
#include "zoran.h"
#include "zoran_procfs.h"
-
-extern int *zr_debug;
-
-#define dprintk(num, format, args...) \
- do { \
- if (*zr_debug >= num) \
- printk(format, ##args); \
- } while (0)
+#include "zoran_card.h"
#ifdef CONFIG_PROC_FS
struct procfs_params_zr36067 {