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rt2x00: debugfs support - allow a register to be empty 

Allow a register to be unspecified, therefore not creating its debugfs
file entry.

Signed-off-by: Anisse Astier <anisse@astier.eu>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Anisse Astier 2012-04-19 15:04:52 +02:00 committed by John W. Linville
parent 7ed85b65ab
commit f2efd20fac
1 changed files with 36 additions and 35 deletions
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71
drivers/net/wireless/rt2x00/rt2x00debug.c
View File

@ -624,22 +624,21 @@ static struct dentry *rt2x00debug_create_file_chipset(const char *name,
data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev);
data += sprintf(data, "\n");
data += sprintf(data, "register\tbase\twords\twordsize\n");
data += sprintf(data, "csr\t%d\t%d\t%d\n",
debug->csr.word_base,
debug->csr.word_count,
debug->csr.word_size);
data += sprintf(data, "eeprom\t%d\t%d\t%d\n",
debug->eeprom.word_base,
debug->eeprom.word_count,
debug->eeprom.word_size);
data += sprintf(data, "bbp\t%d\t%d\t%d\n",
debug->bbp.word_base,
debug->bbp.word_count,
debug->bbp.word_size);
data += sprintf(data, "rf\t%d\t%d\t%d\n",
debug->rf.word_base,
debug->rf.word_count,
debug->rf.word_size);
#define RT2X00DEBUGFS_SPRINTF_REGISTER(__name) \
{ \
if(debug->__name.read) \
data += sprintf(data, __stringify(__name) \
"\t%d\t%d\t%d\n", \
debug->__name.word_base, \
debug->__name.word_count, \
debug->__name.word_size); \
}
RT2X00DEBUGFS_SPRINTF_REGISTER(csr);
RT2X00DEBUGFS_SPRINTF_REGISTER(eeprom);
RT2X00DEBUGFS_SPRINTF_REGISTER(bbp);
RT2X00DEBUGFS_SPRINTF_REGISTER(rf);
#undef RT2X00DEBUGFS_SPRINTF_REGISTER
blob->size = strlen(blob->data);
return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
@ -694,25 +693,27 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
if (IS_ERR(intf->register_folder) || !intf->register_folder)
goto exit;
#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \
({ \
(__intf)->__name##_off_entry = \
debugfs_create_u32(__stringify(__name) "_offset", \
S_IRUSR | S_IWUSR, \
(__intf)->register_folder, \
&(__intf)->offset_##__name); \
if (IS_ERR((__intf)->__name##_off_entry) \
|| !(__intf)->__name##_off_entry) \
goto exit; \
\
(__intf)->__name##_val_entry = \
debugfs_create_file(__stringify(__name) "_value", \
S_IRUSR | S_IWUSR, \
(__intf)->register_folder, \
(__intf), &rt2x00debug_fop_##__name);\
if (IS_ERR((__intf)->__name##_val_entry) \
|| !(__intf)->__name##_val_entry) \
goto exit; \
#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \
({ \
if(debug->__name.read) { \
(__intf)->__name##_off_entry = \
debugfs_create_u32(__stringify(__name) "_offset", \
S_IRUSR | S_IWUSR, \
(__intf)->register_folder, \
&(__intf)->offset_##__name); \
if (IS_ERR((__intf)->__name##_off_entry) \
|| !(__intf)->__name##_off_entry) \
goto exit; \
\
(__intf)->__name##_val_entry = \
debugfs_create_file(__stringify(__name) "_value", \
S_IRUSR | S_IWUSR, \
(__intf)->register_folder, \
(__intf), &rt2x00debug_fop_##__name); \
if (IS_ERR((__intf)->__name##_val_entry) \
|| !(__intf)->__name##_val_entry) \
goto exit; \
} \
})
RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr);