diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/misc/hp_sdc_rtc.c | 58 |
1 files changed, 26 insertions, 32 deletions
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 2e3334b8f82d..770479df8657 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -41,6 +41,7 @@ #include <linux/time.h> #include <linux/miscdevice.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/poll.h> #include <linux/rtc.h> #include <linux/mutex.h> @@ -74,9 +75,6 @@ static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait); static int hp_sdc_rtc_open(struct inode *inode, struct file *file); static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on); -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data); - static void hp_sdc_rtc_isr (int irq, void *dev_id, uint8_t status, uint8_t data) { @@ -427,22 +425,19 @@ static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on) return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue); } -static int hp_sdc_rtc_proc_output (char *buf) +static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v) { #define YN(bit) ("no") #define NY(bit) ("yes") - char *p; struct rtc_time tm; struct timeval tv; memset(&tm, 0, sizeof(struct rtc_time)); - p = buf; - if (hp_sdc_rtc_read_bbrtc(&tm)) { - p += sprintf(p, "BBRTC\t\t: READ FAILED!\n"); + seq_puts(m, "BBRTC\t\t: READ FAILED!\n"); } else { - p += sprintf(p, + seq_printf(m, "rtc_time\t: %02d:%02d:%02d\n" "rtc_date\t: %04d-%02d-%02d\n" "rtc_epoch\t: %04lu\n", @@ -452,41 +447,41 @@ static int hp_sdc_rtc_proc_output (char *buf) } if (hp_sdc_rtc_read_rt(&tv)) { - p += sprintf(p, "i8042 rtc\t: READ FAILED!\n"); + seq_puts(m, "i8042 rtc\t: READ FAILED!\n"); } else { - p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n", + seq_printf(m, "i8042 rtc\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_fhs(&tv)) { - p += sprintf(p, "handshake\t: READ FAILED!\n"); + seq_puts(m, "handshake\t: READ FAILED!\n"); } else { - p += sprintf(p, "handshake\t: %ld.%02d seconds\n", + seq_printf(m, "handshake\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_mt(&tv)) { - p += sprintf(p, "alarm\t\t: READ FAILED!\n"); + seq_puts(m, "alarm\t\t: READ FAILED!\n"); } else { - p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n", + seq_printf(m, "alarm\t\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_dt(&tv)) { - p += sprintf(p, "delay\t\t: READ FAILED!\n"); + seq_puts(m, "delay\t\t: READ FAILED!\n"); } else { - p += sprintf(p, "delay\t\t: %ld.%02d seconds\n", + seq_printf(m, "delay\t\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_ct(&tv)) { - p += sprintf(p, "periodic\t: READ FAILED!\n"); + seq_puts(m, "periodic\t: READ FAILED!\n"); } else { - p += sprintf(p, "periodic\t: %ld.%02d seconds\n", + seq_printf(m, "periodic\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } - p += sprintf(p, + seq_printf(m, "DST_enable\t: %s\n" "BCD\t\t: %s\n" "24hr\t\t: %s\n" @@ -506,23 +501,23 @@ static int hp_sdc_rtc_proc_output (char *buf) 1UL, 1 ? "okay" : "dead"); - return p - buf; + return 0; #undef YN #undef NY } -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file) { - int len = hp_sdc_rtc_proc_output (page); - if (len <= off+count) *eof = 1; - *start = page + off; - len -= off; - if (len>count) len = count; - if (len<0) len = 0; - return len; + return single_open(file, hp_sdc_rtc_proc_show, NULL); } +static const struct file_operations hp_sdc_rtc_proc_fops = { + .open = hp_sdc_rtc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int hp_sdc_rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -715,8 +710,7 @@ static int __init hp_sdc_rtc_init(void) if (misc_register(&hp_sdc_rtc_dev) != 0) printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n"); - create_proc_read_entry ("driver/rtc", 0, NULL, - hp_sdc_rtc_read_proc, NULL); + proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops); printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded " "(RTC v " RTC_VERSION ")\n"); |