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path: root/drivers/macintosh/via-pmu.c
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Diffstat (limited to 'drivers/macintosh/via-pmu.c')
-rw-r--r--drivers/macintosh/via-pmu.c144
1 files changed, 85 insertions, 59 deletions
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 42764849eb7..dee88e59f0d 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>
@@ -40,16 +40,18 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/device.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/freezer.h>
#include <linux/syscalls.h>
#include <linux/suspend.h>
#include <linux/cpu.h>
+#include <linux/compat.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/pgtable.h>
-#include <asm/system.h>
#include <asm/sections.h>
#include <asm/irq.h>
#include <asm/pmac_feature.h>
@@ -72,6 +74,7 @@
/* 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 +403,12 @@ 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;
}
@@ -748,8 +752,9 @@ done_battery_state_smart(struct adb_request* req)
voltage = (req->reply[8] << 8) | req->reply[9];
break;
default:
- printk(KERN_WARNING "pmu.c : unrecognized battery info, len: %d, %02x %02x %02x %02x\n",
- req->reply_len, req->reply[0], req->reply[1], req->reply[2], req->reply[3]);
+ pr_warn("pmu.c: unrecognized battery info, "
+ "len: %d, %4ph\n", req->reply_len,
+ req->reply);
break;
}
}
@@ -867,7 +872,7 @@ static int pmu_battery_proc_show(struct seq_file *m, void *v)
static int pmu_battery_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, pmu_battery_proc_show, PDE(inode)->data);
+ return single_open(file, pmu_battery_proc_show, PDE_DATA(inode));
}
static const struct file_operations pmu_battery_proc_fops = {
@@ -2076,7 +2081,7 @@ 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 +2089,7 @@ 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;
}
@@ -2254,7 +2259,7 @@ static int pmu_sleep_valid(suspend_state_t state)
&& (pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, -1) >= 0);
}
-static struct platform_suspend_ops pmu_pm_ops = {
+static const struct platform_suspend_ops pmu_pm_ops = {
.enter = powerbook_sleep,
.valid = pmu_sleep_valid,
};
@@ -2273,8 +2278,7 @@ static int register_pmu_pm_ops(void)
device_initcall(register_pmu_pm_ops);
#endif
-static int
-pmu_ioctl(struct inode * inode, struct file *filp,
+static int pmu_ioctl(struct file *filp,
u_int cmd, u_long arg)
{
__u32 __user *argp = (__u32 __user *)arg;
@@ -2337,13 +2341,67 @@ pmu_ioctl(struct inode * inode, struct file *filp,
return error;
}
+static long pmu_unlocked_ioctl(struct file *filp,
+ u_int cmd, u_long arg)
+{
+ int ret;
+
+ mutex_lock(&pmu_info_proc_mutex);
+ ret = pmu_ioctl(filp, cmd, arg);
+ 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,
- .ioctl = pmu_ioctl,
+ .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 = {
@@ -2471,12 +2529,9 @@ void pmu_blink(int n)
#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
int pmu_sys_suspended;
-static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state)
+static int pmu_syscore_suspend(void)
{
- if (state.event != PM_EVENT_SUSPEND || pmu_sys_suspended)
- return 0;
-
- /* Suspend PMU event interrupts */\
+ /* Suspend PMU event interrupts */
pmu_suspend();
pmu_sys_suspended = 1;
@@ -2488,12 +2543,12 @@ static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state)
return 0;
}
-static int pmu_sys_resume(struct sys_device *sysdev)
+static void pmu_syscore_resume(void)
{
struct adb_request req;
if (!pmu_sys_suspended)
- return 0;
+ return;
/* Tell PMU we are ready */
pmu_request(&req, NULL, 2, PMU_SYSTEM_READY, 2);
@@ -2506,50 +2561,21 @@ static int pmu_sys_resume(struct sys_device *sysdev)
/* Resume PMU event interrupts */
pmu_resume();
pmu_sys_suspended = 0;
-
- return 0;
}
-#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */
-
-static struct sysdev_class pmu_sysclass = {
- .name = "pmu",
+static struct syscore_ops pmu_syscore_ops = {
+ .suspend = pmu_syscore_suspend,
+ .resume = pmu_syscore_resume,
};
-static struct sys_device device_pmu = {
- .cls = &pmu_sysclass,
-};
-
-static struct sysdev_driver driver_pmu = {
-#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
- .suspend = &pmu_sys_suspend,
- .resume = &pmu_sys_resume,
-#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */
-};
-
-static int __init init_pmu_sysfs(void)
+static int pmu_syscore_register(void)
{
- int rc;
+ register_syscore_ops(&pmu_syscore_ops);
- rc = sysdev_class_register(&pmu_sysclass);
- if (rc) {
- printk(KERN_ERR "Failed registering PMU sys class\n");
- return -ENODEV;
- }
- rc = sysdev_register(&device_pmu);
- if (rc) {
- printk(KERN_ERR "Failed registering PMU sys device\n");
- return -ENODEV;
- }
- rc = sysdev_driver_register(&pmu_sysclass, &driver_pmu);
- if (rc) {
- printk(KERN_ERR "Failed registering PMU sys driver\n");
- return -ENODEV;
- }
return 0;
}
-
-subsys_initcall(init_pmu_sysfs);
+subsys_initcall(pmu_syscore_register);
+#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */
EXPORT_SYMBOL(pmu_request);
EXPORT_SYMBOL(pmu_queue_request);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 21:46:32 +0000