diff options
Diffstat (limited to 'drivers/input/misc/hp_sdc_rtc.c')
| -rw-r--r-- | drivers/input/misc/hp_sdc_rtc.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index abca895a6156..199bc17ddb1d 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -53,28 +53,10 @@ MODULE_LICENSE("Dual BSD/GPL"); #define RTC_VERSION "1.10d" -static DEFINE_MUTEX(hp_sdc_rtc_mutex); static unsigned long epoch = 2000; static struct semaphore i8042tregs; -static hp_sdc_irqhook hp_sdc_rtc_isr; - -static struct fasync_struct *hp_sdc_rtc_async_queue; - -static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait); - -static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos); - -static long hp_sdc_rtc_unlocked_ioctl(struct file *file, - unsigned int cmd, unsigned long arg); - -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 void hp_sdc_rtc_isr (int irq, void *dev_id, uint8_t status, uint8_t data) { @@ -283,151 +265,6 @@ static inline int hp_sdc_rtc_read_ct(struct timespec64 *res) { return 0; } - -#if 0 /* not used yet */ -/* Set the i8042 real-time clock */ -static int hp_sdc_rtc_set_rt (struct timeval *setto) -{ - uint32_t tenms; - unsigned int days; - hp_sdc_transaction t; - uint8_t tseq[11] = { - HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT, - HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0, - HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT, - HP_SDC_CMD_SET_RTD, 2, 0, 0 - }; - - t.endidx = 10; - - if (0xffff < setto->tv_sec / 86400) return -1; - days = setto->tv_sec / 86400; - if (0xffff < setto->tv_usec / 1000000 / 86400) return -1; - days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400; - if (days > 0xffff) return -1; - - if (0xffffff < setto->tv_sec) return -1; - tenms = setto->tv_sec * 100; - if (0xffffff < setto->tv_usec / 10000) return -1; - tenms += setto->tv_usec / 10000; - if (tenms > 0xffffff) return -1; - - tseq[3] = (uint8_t)(tenms & 0xff); - tseq[4] = (uint8_t)((tenms >> 8) & 0xff); - tseq[5] = (uint8_t)((tenms >> 16) & 0xff); - - tseq[9] = (uint8_t)(days & 0xff); - tseq[10] = (uint8_t)((days >> 8) & 0xff); - - t.seq = tseq; - - if (hp_sdc_enqueue_transaction(&t)) return -1; - return 0; -} - -/* Set the i8042 fast handshake timer */ -static int hp_sdc_rtc_set_fhs (struct timeval *setto) -{ - uint32_t tenms; - hp_sdc_transaction t; - uint8_t tseq[5] = { - HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT, - HP_SDC_CMD_SET_FHS, 2, 0, 0 - }; - - t.endidx = 4; - - if (0xffff < setto->tv_sec) return -1; - tenms = setto->tv_sec * 100; - if (0xffff < setto->tv_usec / 10000) return -1; - tenms += setto->tv_usec / 10000; - if (tenms > 0xffff) return -1; - - tseq[3] = (uint8_t)(tenms & 0xff); - tseq[4] = (uint8_t)((tenms >> 8) & 0xff); - - t.seq = tseq; - - if (hp_sdc_enqueue_transaction(&t)) return -1; - return 0; -} - - -/* Set the i8042 match timer (a.k.a. alarm) */ -#define hp_sdc_rtc_set_mt (setto) \ - hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT) - -/* Set the i8042 delay timer */ -#define hp_sdc_rtc_set_dt (setto) \ - hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT) - -/* Set the i8042 cycle timer (a.k.a. periodic) */ -#define hp_sdc_rtc_set_ct (setto) \ - hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT) - -/* Set one of the i8042 3-byte wide timers */ -static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd) -{ - uint32_t tenms; - hp_sdc_transaction t; - uint8_t tseq[6] = { - HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT, - 0, 3, 0, 0, 0 - }; - - t.endidx = 6; - - if (0xffffff < setto->tv_sec) return -1; - tenms = setto->tv_sec * 100; - if (0xffffff < setto->tv_usec / 10000) return -1; - tenms += setto->tv_usec / 10000; - if (tenms > 0xffffff) return -1; - - tseq[1] = setcmd; - tseq[3] = (uint8_t)(tenms & 0xff); - tseq[4] = (uint8_t)((tenms >> 8) & 0xff); - tseq[5] = (uint8_t)((tenms >> 16) & 0xff); - - t.seq = tseq; - - if (hp_sdc_enqueue_transaction(&t)) { - return -1; - } - return 0; -} -#endif - -static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) { - ssize_t retval; - - if (count < sizeof(unsigned long)) - return -EINVAL; - - retval = put_user(68, (unsigned long __user *)buf); - return retval; -} - -static __poll_t hp_sdc_rtc_poll(struct file *file, poll_table *wait) -{ - unsigned long l; - - l = 0; - if (l != 0) - return EPOLLIN | EPOLLRDNORM; - return 0; -} - -static int hp_sdc_rtc_open(struct inode *inode, struct file *file) -{ - return 0; -} - -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_show(struct seq_file *m, void *v) { #define YN(bit) ("no") @@ -507,182 +344,6 @@ static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v) #undef NY } -static int hp_sdc_rtc_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ -#if 1 - return -EINVAL; -#else - - struct rtc_time wtime; - struct timeval ttime; - int use_wtime = 0; - - /* This needs major work. */ - - switch (cmd) { - - case RTC_AIE_OFF: /* Mask alarm int. enab. bit */ - case RTC_AIE_ON: /* Allow alarm interrupts. */ - case RTC_PIE_OFF: /* Mask periodic int. enab. bit */ - case RTC_PIE_ON: /* Allow periodic ints */ - case RTC_UIE_ON: /* Allow ints for RTC updates. */ - case RTC_UIE_OFF: /* Allow ints for RTC updates. */ - { - /* We cannot mask individual user timers and we - cannot tell them apart when they occur, so it - would be disingenuous to succeed these IOCTLs */ - return -EINVAL; - } - case RTC_ALM_READ: /* Read the present alarm time */ - { - if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT; - if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT; - - wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600; - wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60; - wtime.tm_sec = ttime.tv_sec; - - break; - } - case RTC_IRQP_READ: /* Read the periodic IRQ rate. */ - { - return put_user(hp_sdc_rtc_freq, (unsigned long *)arg); - } - case RTC_IRQP_SET: /* Set periodic IRQ rate. */ - { - /* - * The max we can do is 100Hz. - */ - - if ((arg < 1) || (arg > 100)) return -EINVAL; - ttime.tv_sec = 0; - ttime.tv_usec = 1000000 / arg; - if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT; - hp_sdc_rtc_freq = arg; - return 0; - } - case RTC_ALM_SET: /* Store a time into the alarm */ - { - /* - * This expects a struct hp_sdc_rtc_time. Writing 0xff means - * "don't care" or "match all" for PC timers. The HP SDC - * does not support that perk, but it could be emulated fairly - * easily. Only the tm_hour, tm_min and tm_sec are used. - * We could do it with 10ms accuracy with the HP SDC, if the - * rtc interface left us a way to do that. - */ - struct hp_sdc_rtc_time alm_tm; - - if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg, - sizeof(struct hp_sdc_rtc_time))) - return -EFAULT; - - if (alm_tm.tm_hour > 23) return -EINVAL; - if (alm_tm.tm_min > 59) return -EINVAL; - if (alm_tm.tm_sec > 59) return -EINVAL; - - ttime.sec = alm_tm.tm_hour * 3600 + - alm_tm.tm_min * 60 + alm_tm.tm_sec; - ttime.usec = 0; - if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT; - return 0; - } - case RTC_RD_TIME: /* Read the time/date from RTC */ - { - if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT; - break; - } - case RTC_SET_TIME: /* Set the RTC */ - { - struct rtc_time hp_sdc_rtc_tm; - unsigned char mon, day, hrs, min, sec, leap_yr; - unsigned int yrs; - - if (!capable(CAP_SYS_TIME)) - return -EACCES; - if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg, - sizeof(struct rtc_time))) - return -EFAULT; - - yrs = hp_sdc_rtc_tm.tm_year + 1900; - mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */ - day = hp_sdc_rtc_tm.tm_mday; - hrs = hp_sdc_rtc_tm.tm_hour; - min = hp_sdc_rtc_tm.tm_min; - sec = hp_sdc_rtc_tm.tm_sec; - - if (yrs < 1970) - return -EINVAL; - - leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400)); - - if ((mon > 12) || (day == 0)) - return -EINVAL; - if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr))) - return -EINVAL; - if ((hrs >= 24) || (min >= 60) || (sec >= 60)) - return -EINVAL; - - if ((yrs -= eH) > 255) /* They are unsigned */ - return -EINVAL; - - - return 0; - } - case RTC_EPOCH_READ: /* Read the epoch. */ - { - return put_user (epoch, (unsigned long *)arg); - } - case RTC_EPOCH_SET: /* Set the epoch. */ - { - /* - * There were no RTC clocks before 1900. - */ - if (arg < 1900) - return -EINVAL; - if (!capable(CAP_SYS_TIME)) - return -EACCES; - - epoch = arg; - return 0; - } - default: - return -EINVAL; - } - return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0; -#endif -} - -static long hp_sdc_rtc_unlocked_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int ret; - - mutex_lock(&hp_sdc_rtc_mutex); - ret = hp_sdc_rtc_ioctl(file, cmd, arg); - mutex_unlock(&hp_sdc_rtc_mutex); - - return ret; -} - - -static const struct file_operations hp_sdc_rtc_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = hp_sdc_rtc_read, - .poll = hp_sdc_rtc_poll, - .unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl, - .open = hp_sdc_rtc_open, - .fasync = hp_sdc_rtc_fasync, -}; - -static struct miscdevice hp_sdc_rtc_dev = { - .minor = RTC_MINOR, - .name = "rtc_HIL", - .fops = &hp_sdc_rtc_fops -}; - static int __init hp_sdc_rtc_init(void) { int ret; @@ -696,8 +357,6 @@ static int __init hp_sdc_rtc_init(void) if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr))) return ret; - if (misc_register(&hp_sdc_rtc_dev) != 0) - printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n"); proc_create_single("driver/rtc", 0, NULL, hp_sdc_rtc_proc_show); @@ -710,7 +369,6 @@ static int __init hp_sdc_rtc_init(void) static void __exit hp_sdc_rtc_exit(void) { remove_proc_entry ("driver/rtc", NULL); - misc_deregister(&hp_sdc_rtc_dev); hp_sdc_release_timer_irq(hp_sdc_rtc_isr); printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n"); } |