diff options
Diffstat (limited to 'drivers/macintosh/via-pmu.c')
| -rw-r--r-- | drivers/macintosh/via-pmu.c | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 3d4fc0f7b00b..cd29c8248386 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -18,7 +18,7 @@ * */ #include <stdarg.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/kernel.h> @@ -45,6 +45,7 @@ #include <linux/syscalls.h> #include <linux/suspend.h> #include <linux/cpu.h> +#include <linux/compat.h> #include <asm/prom.h> #include <asm/machdep.h> #include <asm/io.h> @@ -72,6 +73,7 @@ /* How many iterations between battery polls */ #define BATTERY_POLLING_COUNT 2 +static DEFINE_MUTEX(pmu_info_proc_mutex); static volatile unsigned char __iomem *via; /* VIA registers - spaced 0x200 bytes apart */ @@ -400,11 +402,12 @@ static int __init via_pmu_start(void) printk(KERN_ERR "via-pmu: can't map interrupt\n"); return -ENODEV; } - /* We set IRQF_TIMER because we don't want the interrupt to be disabled - * between the 2 passes of driver suspend, we control our own disabling - * for that one + /* We set IRQF_NO_SUSPEND because we don't want the interrupt + * to be disabled between the 2 passes of driver suspend, we + * control our own disabling for that one */ - if (request_irq(irq, via_pmu_interrupt, IRQF_TIMER, "VIA-PMU", (void *)0)) { + if (request_irq(irq, via_pmu_interrupt, IRQF_NO_SUSPEND, + "VIA-PMU", (void *)0)) { printk(KERN_ERR "via-pmu: can't request irq %d\n", irq); return -ENODEV; } @@ -2076,7 +2079,7 @@ pmu_open(struct inode *inode, struct file *file) pp->rb_get = pp->rb_put = 0; spin_lock_init(&pp->lock); init_waitqueue_head(&pp->wait); - lock_kernel(); + mutex_lock(&pmu_info_proc_mutex); spin_lock_irqsave(&all_pvt_lock, flags); #if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) pp->backlight_locker = 0; @@ -2084,7 +2087,7 @@ pmu_open(struct inode *inode, struct file *file) list_add(&pp->list, &all_pmu_pvt); spin_unlock_irqrestore(&all_pvt_lock, flags); file->private_data = pp; - unlock_kernel(); + mutex_unlock(&pmu_info_proc_mutex); return 0; } @@ -2341,20 +2344,62 @@ static long pmu_unlocked_ioctl(struct file *filp, { int ret; - lock_kernel(); + mutex_lock(&pmu_info_proc_mutex); ret = pmu_ioctl(filp, cmd, arg); - unlock_kernel(); + mutex_unlock(&pmu_info_proc_mutex); return ret; } +#ifdef CONFIG_COMPAT +#define PMU_IOC_GET_BACKLIGHT32 _IOR('B', 1, compat_size_t) +#define PMU_IOC_SET_BACKLIGHT32 _IOW('B', 2, compat_size_t) +#define PMU_IOC_GET_MODEL32 _IOR('B', 3, compat_size_t) +#define PMU_IOC_HAS_ADB32 _IOR('B', 4, compat_size_t) +#define PMU_IOC_CAN_SLEEP32 _IOR('B', 5, compat_size_t) +#define PMU_IOC_GRAB_BACKLIGHT32 _IOR('B', 6, compat_size_t) + +static long compat_pmu_ioctl (struct file *filp, u_int cmd, u_long arg) +{ + switch (cmd) { + case PMU_IOC_SLEEP: + break; + case PMU_IOC_GET_BACKLIGHT32: + cmd = PMU_IOC_GET_BACKLIGHT; + break; + case PMU_IOC_SET_BACKLIGHT32: + cmd = PMU_IOC_SET_BACKLIGHT; + break; + case PMU_IOC_GET_MODEL32: + cmd = PMU_IOC_GET_MODEL; + break; + case PMU_IOC_HAS_ADB32: + cmd = PMU_IOC_HAS_ADB; + break; + case PMU_IOC_CAN_SLEEP32: + cmd = PMU_IOC_CAN_SLEEP; + break; + case PMU_IOC_GRAB_BACKLIGHT32: + cmd = PMU_IOC_GRAB_BACKLIGHT; + break; + default: + return -ENOIOCTLCMD; + } + return pmu_unlocked_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); +} +#endif + static const struct file_operations pmu_device_fops = { .read = pmu_read, .write = pmu_write, .poll = pmu_fpoll, .unlocked_ioctl = pmu_unlocked_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = compat_pmu_ioctl, +#endif .open = pmu_open, .release = pmu_release, + .llseek = noop_llseek, }; static struct miscdevice pmu_device = { |