mirror of
https://github.com/adulau/aha.git
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[PATCH] nvram - CodingStyle
Bring drivers/char/nvram.c in line with the Coding Style. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck
parent
3ad4f59705
commit
971ddcf8ad
1 changed files with 52 additions and 74 deletions
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@ -46,7 +46,7 @@
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/* select machine configuration */
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#if defined(CONFIG_ATARI)
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# define MACH ATARI
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#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) /* and others?? */
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#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) /* and ?? */
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# define MACH PC
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#else
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# error Cannot build nvram driver for this machine configuration.
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@ -107,9 +107,9 @@
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/spinlock.h>
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#include <linux/io.h>
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#include <linux/uaccess.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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static DEFINE_SPINLOCK(nvram_state_lock);
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@ -123,7 +123,7 @@ static void mach_set_checksum(void);
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#ifdef CONFIG_PROC_FS
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static int mach_proc_infos(unsigned char *contents, char *buffer, int *len,
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off_t *begin, off_t offset, int size);
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off_t *begin, off_t offset, int size);
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#endif
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/*
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@ -133,18 +133,17 @@ static int mach_proc_infos(unsigned char *contents, char *buffer, int *len,
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*
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* It is worth noting that these functions all access bytes of general
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* purpose memory in the NVRAM - that is to say, they all add the
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* NVRAM_FIRST_BYTE offset. Pass them offsets into NVRAM as if you did not
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* NVRAM_FIRST_BYTE offset. Pass them offsets into NVRAM as if you did not
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* know about the RTC cruft.
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*/
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unsigned char
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__nvram_read_byte(int i)
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unsigned char __nvram_read_byte(int i)
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{
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return CMOS_READ(NVRAM_FIRST_BYTE + i);
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}
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EXPORT_SYMBOL(__nvram_read_byte);
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unsigned char
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nvram_read_byte(int i)
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unsigned char nvram_read_byte(int i)
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{
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unsigned long flags;
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unsigned char c;
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@ -154,16 +153,16 @@ nvram_read_byte(int i)
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spin_unlock_irqrestore(&rtc_lock, flags);
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return c;
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}
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EXPORT_SYMBOL(nvram_read_byte);
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/* This races nicely with trying to read with checksum checking (nvram_read) */
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void
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__nvram_write_byte(unsigned char c, int i)
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void __nvram_write_byte(unsigned char c, int i)
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{
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CMOS_WRITE(c, NVRAM_FIRST_BYTE + i);
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}
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EXPORT_SYMBOL(__nvram_write_byte);
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void
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nvram_write_byte(unsigned char c, int i)
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void nvram_write_byte(unsigned char c, int i)
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{
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unsigned long flags;
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@ -171,15 +170,15 @@ nvram_write_byte(unsigned char c, int i)
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__nvram_write_byte(c, i);
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spin_unlock_irqrestore(&rtc_lock, flags);
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}
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EXPORT_SYMBOL(nvram_write_byte);
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int
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__nvram_check_checksum(void)
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int __nvram_check_checksum(void)
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{
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return mach_check_checksum();
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}
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EXPORT_SYMBOL(__nvram_check_checksum);
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int
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nvram_check_checksum(void)
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int nvram_check_checksum(void)
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{
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unsigned long flags;
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int rv;
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@ -189,16 +188,15 @@ nvram_check_checksum(void)
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spin_unlock_irqrestore(&rtc_lock, flags);
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return rv;
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}
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EXPORT_SYMBOL(nvram_check_checksum);
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static void
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__nvram_set_checksum(void)
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static void __nvram_set_checksum(void)
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{
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mach_set_checksum();
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}
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#if 0
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void
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nvram_set_checksum(void)
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void nvram_set_checksum(void)
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{
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unsigned long flags;
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@ -212,7 +210,7 @@ nvram_set_checksum(void)
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* The are the file operation function for user access to /dev/nvram
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*/
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static loff_t nvram_llseek(struct file *file,loff_t offset, int origin )
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static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
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{
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lock_kernel();
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switch (origin) {
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@ -230,8 +228,8 @@ static loff_t nvram_llseek(struct file *file,loff_t offset, int origin )
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return (offset >= 0) ? (file->f_pos = offset) : -EINVAL;
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}
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static ssize_t
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nvram_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
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static ssize_t nvram_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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unsigned char contents[NVRAM_BYTES];
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unsigned i = *ppos;
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@ -254,13 +252,13 @@ nvram_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
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return tmp - contents;
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checksum_err:
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checksum_err:
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spin_unlock_irq(&rtc_lock);
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return -EIO;
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}
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static ssize_t
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nvram_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
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static ssize_t nvram_write(struct file *file, const char __user *buf,
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size_t count, loff_t *ppos)
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{
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unsigned char contents[NVRAM_BYTES];
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unsigned i = *ppos;
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@ -287,14 +285,13 @@ nvram_write(struct file *file, const char __user *buf, size_t count, loff_t *ppo
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return tmp - contents;
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checksum_err:
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checksum_err:
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spin_unlock_irq(&rtc_lock);
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return -EIO;
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}
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static int
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nvram_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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static int nvram_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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int i;
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@ -315,7 +312,7 @@ nvram_ioctl(struct inode *inode, struct file *file,
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return 0;
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case NVRAM_SETCKS:
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/* just set checksum, contents unchanged (maybe useful after
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/* just set checksum, contents unchanged (maybe useful after
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* checksum garbaged somehow...) */
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if (!capable(CAP_SYS_ADMIN))
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return -EACCES;
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@ -330,8 +327,7 @@ nvram_ioctl(struct inode *inode, struct file *file,
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}
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}
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static int
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nvram_open(struct inode *inode, struct file *file)
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static int nvram_open(struct inode *inode, struct file *file)
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{
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lock_kernel();
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spin_lock(&nvram_state_lock);
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@ -356,8 +352,7 @@ nvram_open(struct inode *inode, struct file *file)
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return 0;
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}
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static int
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nvram_release(struct inode *inode, struct file *file)
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static int nvram_release(struct inode *inode, struct file *file)
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{
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spin_lock(&nvram_state_lock);
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@ -375,17 +370,15 @@ nvram_release(struct inode *inode, struct file *file)
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}
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#ifndef CONFIG_PROC_FS
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static int
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nvram_read_proc(char *buffer, char **start, off_t offset,
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int size, int *eof, void *data)
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static int nvram_read_proc(char *buffer, char **start, off_t offset,
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int size, int *eof, void *data)
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{
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return 0;
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}
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#else
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static int
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nvram_read_proc(char *buffer, char **start, off_t offset,
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int size, int *eof, void *data)
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static int nvram_read_proc(char *buffer, char **start, off_t offset,
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int size, int *eof, void *data)
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{
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unsigned char contents[NVRAM_BYTES];
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int i, len = 0;
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@ -409,14 +402,14 @@ nvram_read_proc(char *buffer, char **start, off_t offset,
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* this like that... */
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#define PRINT_PROC(fmt,args...) \
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do { \
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*len += sprintf(buffer+*len, fmt, ##args); \
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*len += sprintf(buffer + *len, fmt, ##args); \
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if (*begin + *len > offset + size) \
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return 0; \
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if (*begin + *len < offset) { \
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*begin += *len; \
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*len = 0; \
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} \
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} while(0)
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} while (0)
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#endif /* CONFIG_PROC_FS */
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@ -436,8 +429,7 @@ static struct miscdevice nvram_dev = {
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&nvram_fops
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};
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static int __init
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nvram_init(void)
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static int __init nvram_init(void)
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{
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int ret;
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@ -459,15 +451,14 @@ nvram_init(void)
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}
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ret = 0;
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printk(KERN_INFO "Non-volatile memory driver v" NVRAM_VERSION "\n");
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out:
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out:
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return ret;
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outmisc:
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outmisc:
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misc_deregister(&nvram_dev);
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goto out;
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}
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static void __exit
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nvram_cleanup_module(void)
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static void __exit nvram_cleanup_module(void)
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{
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remove_proc_entry("driver/nvram", NULL);
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misc_deregister(&nvram_dev);
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@ -482,8 +473,7 @@ module_exit(nvram_cleanup_module);
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#if MACH == PC
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static int
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pc_check_checksum(void)
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static int pc_check_checksum(void)
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{
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int i;
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unsigned short sum = 0;
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@ -493,11 +483,10 @@ pc_check_checksum(void)
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sum += __nvram_read_byte(i);
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expect = __nvram_read_byte(PC_CKS_LOC)<<8 |
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__nvram_read_byte(PC_CKS_LOC+1);
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return ((sum & 0xffff) == expect);
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return (sum & 0xffff) == expect;
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}
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static void
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pc_set_checksum(void)
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static void pc_set_checksum(void)
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{
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int i;
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unsigned short sum = 0;
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@ -522,9 +511,8 @@ static char *gfx_types[] = {
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"monochrome",
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};
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static int
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pc_proc_infos(unsigned char *nvram, char *buffer, int *len,
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off_t *begin, off_t offset, int size)
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static int pc_proc_infos(unsigned char *nvram, char *buffer, int *len,
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off_t *begin, off_t offset, int size)
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{
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int checksum;
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int type;
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@ -590,20 +578,18 @@ pc_proc_infos(unsigned char *nvram, char *buffer, int *len,
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#if MACH == ATARI
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static int
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atari_check_checksum(void)
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static int atari_check_checksum(void)
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{
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int i;
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unsigned char sum = 0;
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for (i = ATARI_CKS_RANGE_START; i <= ATARI_CKS_RANGE_END; ++i)
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sum += __nvram_read_byte(i);
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return (__nvram_read_byte(ATARI_CKS_LOC) == (~sum & 0xff) &&
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__nvram_read_byte(ATARI_CKS_LOC + 1) == (sum & 0xff));
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return (__nvram_read_byte(ATARI_CKS_LOC) == (~sum & 0xff)) &&
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(__nvram_read_byte(ATARI_CKS_LOC + 1) == (sum & 0xff));
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}
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static void
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atari_set_checksum(void)
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static void atari_set_checksum(void)
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{
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int i;
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unsigned char sum = 0;
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@ -654,9 +640,8 @@ static char *colors[] = {
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"2", "4", "16", "256", "65536", "??", "??", "??"
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};
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static int
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atari_proc_infos(unsigned char *nvram, char *buffer, int *len,
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off_t *begin, off_t offset, int size)
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static int atari_proc_infos(unsigned char *nvram, char *buffer, int *len,
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off_t *begin, off_t offset, int size)
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{
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int checksum = nvram_check_checksum();
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int i;
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@ -725,11 +710,4 @@ atari_proc_infos(unsigned char *nvram, char *buffer, int *len,
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#endif /* MACH == ATARI */
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MODULE_LICENSE("GPL");
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EXPORT_SYMBOL(__nvram_read_byte);
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EXPORT_SYMBOL(nvram_read_byte);
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EXPORT_SYMBOL(__nvram_write_byte);
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EXPORT_SYMBOL(nvram_write_byte);
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EXPORT_SYMBOL(__nvram_check_checksum);
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EXPORT_SYMBOL(nvram_check_checksum);
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MODULE_ALIAS_MISCDEV(NVRAM_MINOR);
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