[PATCH 06/16] pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (char)
Dominik Brodowski
linux at dominikbrodowski.net
Sat Oct 24 15:42:56 EDT 2009
Convert PCMCIA drivers to use the dynamic debug infrastructure, instead of
requiring manual settings of PCMCIA_DEBUG. Only some rare extra debug checks
in cm4000_cs.c cm4040_cs.c are now hidden behind a "#ifdef CM4000_DEBUG"
or "#ifdef CM4040_DEBUG".
Also, remove all usages of the CS_CHECK macro and replace them with proper
Linux style calling and return value checking. The extra error reporting may
be dropped, as the PCMCIA core already complains about any (non-driver-author)
errors.
CC: Harald Welte <laforge at gnumonks.org>
CC: Jiri Kosina <jkosina at suse.cz>
CC: David Sterba <dsterba at suse.cz>
Signed-off-by: Dominik Brodowski <linux at dominikbrodowski.net>
---
drivers/char/pcmcia/cm4000_cs.c | 69 ++++++++++++---------------------
drivers/char/pcmcia/cm4040_cs.c | 42 ++++++++------------
drivers/char/pcmcia/ipwireless/main.c | 34 ++++------------
drivers/char/pcmcia/synclink_cs.c | 23 +++++------
4 files changed, 61 insertions(+), 107 deletions(-)
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index c250a31..2904d5f 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -23,8 +23,6 @@
* All rights reserved. Licensed under dual BSD/GPL license.
*/
-/* #define PCMCIA_DEBUG 6 */
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -47,18 +45,17 @@
/* #define ATR_CSUM */
-#ifdef PCMCIA_DEBUG
#define reader_to_dev(x) (&handle_to_dev(x->p_dev))
-static int pc_debug = PCMCIA_DEBUG;
-module_param(pc_debug, int, 0600);
-#define DEBUGP(n, rdr, x, args...) do { \
- if (pc_debug >= (n)) \
- dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
- __func__ , ## args); \
+
+/* n (debug level) is ignored */
+/* additional debug output may be enabled by re-compiling with
+ * CM4000_DEBUG set */
+/* #define CM4000_DEBUG */
+#define DEBUGP(n, rdr, x, args...) do { \
+ dev_dbg(reader_to_dev(rdr), "%s:" x, \
+ __func__ , ## args); \
} while (0)
-#else
-#define DEBUGP(n, rdr, x, args...)
-#endif
+
static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
#define T_1SEC (HZ)
@@ -174,14 +171,13 @@ static unsigned char fi_di_table[10][14] = {
/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
};
-#ifndef PCMCIA_DEBUG
+#ifndef CM4000_DEBUG
#define xoutb outb
#define xinb inb
#else
static inline void xoutb(unsigned char val, unsigned short port)
{
- if (pc_debug >= 7)
- printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
+ pr_debug("outb(val=%.2x,port=%.4x)\n", val, port);
outb(val, port);
}
static inline unsigned char xinb(unsigned short port)
@@ -189,8 +185,7 @@ static inline unsigned char xinb(unsigned short port)
unsigned char val;
val = inb(port);
- if (pc_debug >= 7)
- printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
+ pr_debug("%.2x=inb(%.4x)\n", val, port);
return val;
}
@@ -514,12 +509,10 @@ static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
for (i = 0; i < 4; i++) {
xoutb(i, REG_BUF_ADDR(iobase));
xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
-#ifdef PCMCIA_DEBUG
- if (pc_debug >= 5)
- printk("0x%.2x ", dev->pts[i]);
+#ifdef CM4000_DEBUG
+ pr_debug("0x%.2x ", dev->pts[i]);
}
- if (pc_debug >= 5)
- printk("\n");
+ pr_debug("\n");
#else
}
#endif
@@ -579,14 +572,13 @@ static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
pts_reply[i] = inb(REG_BUF_DATA(iobase));
}
-#ifdef PCMCIA_DEBUG
+#ifdef CM4000_DEBUG
DEBUGP(2, dev, "PTSreply: ");
for (i = 0; i < num_bytes_read; i++) {
- if (pc_debug >= 5)
- printk("0x%.2x ", pts_reply[i]);
+ pr_debug("0x%.2x ", pts_reply[i]);
}
- printk("\n");
-#endif /* PCMCIA_DEBUG */
+ pr_debug("\n");
+#endif /* CM4000_DEBUG */
DEBUGP(5, dev, "Clear Tactive in Flags1\n");
xoutb(0x20, REG_FLAGS1(iobase));
@@ -655,7 +647,7 @@ static void terminate_monitor(struct cm4000_dev *dev)
DEBUGP(5, dev, "Delete timer\n");
del_timer_sync(&dev->timer);
-#ifdef PCMCIA_DEBUG
+#ifdef CM4000_DEBUG
dev->monitor_running = 0;
#endif
@@ -898,7 +890,7 @@ static void monitor_card(unsigned long p)
DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
"be zero) failed\n", dev->atr_csum);
}
-#ifdef PCMCIA_DEBUG
+#ifdef CM4000_DEBUG
else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
DEBUGP(4, dev, "ATR length error\n");
} else {
@@ -1415,7 +1407,6 @@ static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
int size;
int rc;
void __user *argp = (void __user *)arg;
-#ifdef PCMCIA_DEBUG
char *ioctl_names[CM_IOC_MAXNR + 1] = {
[_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS",
[_IOC_NR(CM_IOCGATR)] "CM_IOCGATR",
@@ -1423,7 +1414,6 @@ static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
[_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS",
[_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL",
};
-#endif
DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
iminor(inode), ioctl_names[_IOC_NR(cmd)]);
@@ -1523,7 +1513,7 @@ static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
case CM_IOCARDOFF:
-#ifdef PCMCIA_DEBUG
+#ifdef CM4000_DEBUG
DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
if (dev->flags0 & 0x01) {
DEBUGP(4, dev, " Card inserted\n");
@@ -1625,18 +1615,9 @@ static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
break;
-#ifdef PCMCIA_DEBUG
- case CM_IOSDBGLVL: /* set debug log level */
- {
- int old_pc_debug = 0;
-
- old_pc_debug = pc_debug;
- if (copy_from_user(&pc_debug, argp, sizeof(int)))
- rc = -EFAULT;
- else if (old_pc_debug != pc_debug)
- DEBUGP(0, dev, "Changed debug log level "
- "to %i\n", pc_debug);
- }
+#ifdef CM4000_DEBUG
+ case CM_IOSDBGLVL:
+ rc = -ENOTTY;
break;
#endif
default:
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 4f0723b..0001ad2 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -17,8 +17,6 @@
* All rights reserved, Dual BSD/GPL Licensed.
*/
-/* #define PCMCIA_DEBUG 6 */
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -41,18 +39,16 @@
#include "cm4040_cs.h"
-#ifdef PCMCIA_DEBUG
#define reader_to_dev(x) (&handle_to_dev(x->p_dev))
-static int pc_debug = PCMCIA_DEBUG;
-module_param(pc_debug, int, 0600);
-#define DEBUGP(n, rdr, x, args...) do { \
- if (pc_debug >= (n)) \
- dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
- __func__ , ##args); \
+
+/* n (debug level) is ignored */
+/* additional debug output may be enabled by re-compiling with
+ * CM4040_DEBUG set */
+/* #define CM4040_DEBUG */
+#define DEBUGP(n, rdr, x, args...) do { \
+ dev_dbg(reader_to_dev(rdr), "%s:" x, \
+ __func__ , ## args); \
} while (0)
-#else
-#define DEBUGP(n, rdr, x, args...)
-#endif
static char *version =
"OMNIKEY CardMan 4040 v1.1.0gm5 - All bugs added by Harald Welte";
@@ -90,14 +86,13 @@ struct reader_dev {
static struct pcmcia_device *dev_table[CM_MAX_DEV];
-#ifndef PCMCIA_DEBUG
+#ifndef CM4040_DEBUG
#define xoutb outb
#define xinb inb
#else
static inline void xoutb(unsigned char val, unsigned short port)
{
- if (pc_debug >= 7)
- printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
+ pr_debug("outb(val=%.2x,port=%.4x)\n", val, port);
outb(val, port);
}
@@ -106,8 +101,7 @@ static inline unsigned char xinb(unsigned short port)
unsigned char val;
val = inb(port);
- if (pc_debug >= 7)
- printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
+ pr_debug("%.2x=inb(%.4x)\n", val, port);
return val;
}
#endif
@@ -260,11 +254,10 @@ static ssize_t cm4040_read(struct file *filp, char __user *buf,
return -EIO;
}
dev->r_buf[i] = xinb(iobase + REG_OFFSET_BULK_IN);
-#ifdef PCMCIA_DEBUG
- if (pc_debug >= 6)
- printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]);
+#ifdef CM4040_DEBUG
+ pr_debug("%lu:%2x ", i, dev->r_buf[i]);
}
- printk("\n");
+ pr_debug("\n");
#else
}
#endif
@@ -288,11 +281,10 @@ static ssize_t cm4040_read(struct file *filp, char __user *buf,
return -EIO;
}
dev->r_buf[i+5] = xinb(iobase + REG_OFFSET_BULK_IN);
-#ifdef PCMCIA_DEBUG
- if (pc_debug >= 6)
- printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]);
+#ifdef CM4040_DEBUG
+ pr_debug("%lu:%2x ", i, dev->r_buf[i]);
}
- printk("\n");
+ pr_debug("\n");
#else
}
#endif
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 0f46749..24bffa4 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -65,10 +65,7 @@ static void signalled_reboot_work(struct work_struct *work_reboot)
struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
work_reboot);
struct pcmcia_device *link = ipw->link;
- int ret = pcmcia_reset_card(link->socket);
-
- if (ret != 0)
- cs_error(link, ResetCard, ret);
+ pcmcia_reset_card(link->socket);
}
static void signalled_reboot_callback(void *callback_data)
@@ -122,10 +119,8 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
ret = pcmcia_request_window(&p_dev, &ipw->request_common_memory,
&ipw->handle_common_memory);
- if (ret != 0) {
- cs_error(p_dev, RequestWindow, ret);
+ if (ret != 0)
goto exit1;
- }
memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr;
memreq_common_memory.Page = 0;
@@ -133,10 +128,8 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
ret = pcmcia_map_mem_page(ipw->handle_common_memory,
&memreq_common_memory);
- if (ret != 0) {
- cs_error(p_dev, MapMemPage, ret);
+ if (ret != 0)
goto exit2;
- }
ipw->is_v2_card = cfg->mem.win[0].len == 0x100;
@@ -155,10 +148,8 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
ret = pcmcia_request_window(&p_dev, &ipw->request_attr_memory,
&ipw->handle_attr_memory);
- if (ret != 0) {
- cs_error(p_dev, RequestWindow, ret);
+ if (ret != 0)
goto exit2;
- }
memreq_attr_memory.CardOffset = 0;
memreq_attr_memory.Page = 0;
@@ -166,10 +157,8 @@ static int ipwireless_probe(struct pcmcia_device *p_dev,
ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
&memreq_attr_memory);
- if (ret != 0) {
- cs_error(p_dev, MapMemPage, ret);
+ if (ret != 0)
goto exit3;
- }
ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
ipw->request_attr_memory.Size);
@@ -202,10 +191,8 @@ static int config_ipwireless(struct ipw_dev *ipw)
ipw->is_v2_card = 0;
ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
- if (ret != 0) {
- cs_error(link, RequestIO, ret);
+ if (ret != 0)
return ret;
- }
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -223,10 +210,8 @@ static int config_ipwireless(struct ipw_dev *ipw)
ret = pcmcia_request_irq(link, &link->irq);
- if (ret != 0) {
- cs_error(link, RequestIRQ, ret);
+ if (ret != 0)
goto exit;
- }
printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
ipw->is_v2_card ? "V2/V3" : "V1");
@@ -263,10 +248,8 @@ static int config_ipwireless(struct ipw_dev *ipw)
*/
ret = pcmcia_request_configuration(link, &link->conf);
- if (ret != 0) {
- cs_error(link, RequestConfiguration, ret);
+ if (ret != 0)
goto exit;
- }
link->dev_node = &ipw->nodes[0];
@@ -347,7 +330,6 @@ static int ipwireless_attach(struct pcmcia_device *link)
ret = config_ipwireless(ipw);
if (ret != 0) {
- cs_error(link, RegisterClient, ret);
ipwireless_detach(link);
return ret;
}
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 429b731..09b2590 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -572,9 +572,6 @@ static int mgslpc_probe(struct pcmcia_device *link)
/* Card has been inserted.
*/
-#define CS_CHECK(fn, ret) \
-do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-
static int mgslpc_ioprobe(struct pcmcia_device *p_dev,
cistpl_cftable_entry_t *cfg,
cistpl_cftable_entry_t *dflt,
@@ -598,15 +595,14 @@ static int mgslpc_ioprobe(struct pcmcia_device *p_dev,
static int mgslpc_config(struct pcmcia_device *link)
{
MGSLPC_INFO *info = link->priv;
- int last_fn = RequestIO;
- int last_ret;
+ int ret;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_config(0x%p)\n", link);
- last_ret = pcmcia_loop_config(link, mgslpc_ioprobe, NULL);
- if (last_ret != 0)
- goto cs_failed;
+ ret = pcmcia_loop_config(link, mgslpc_ioprobe, NULL);
+ if (ret != 0)
+ goto failed;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -616,9 +612,13 @@ static int mgslpc_config(struct pcmcia_device *link)
link->irq.Attributes |= IRQ_HANDLE_PRESENT;
link->irq.Handler = mgslpc_isr;
link->irq.Instance = info;
- CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
+ ret = pcmcia_request_irq(link, &link->irq);
+ if (ret)
+ goto failed;
+ ret = pcmcia_request_configuration(link, &link->conf);
+ if (ret)
+ goto failed;
info->io_base = link->io.BasePort1;
info->irq_level = link->irq.AssignedIRQ;
@@ -638,8 +638,7 @@ static int mgslpc_config(struct pcmcia_device *link)
printk("\n");
return 0;
-cs_failed:
- cs_error(link, last_fn, last_ret);
+failed:
mgslpc_release((u_long)link);
return -ENODEV;
}
--
1.6.0.4
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