diff options
Diffstat (limited to 'arch/mips/loongson')
| -rw-r--r-- | arch/mips/loongson/lemote-2f/irq.c | 4 | ||||
| -rw-r--r-- | arch/mips/loongson/lemote-2f/pm.c | 71 |
2 files changed, 71 insertions, 4 deletions
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c index 50e7bb6012b..77d32f9cf31 100644 --- a/arch/mips/loongson/lemote-2f/irq.c +++ b/arch/mips/loongson/lemote-2f/irq.c @@ -9,6 +9,7 @@ */ #include <linux/interrupt.h> +#include <linux/module.h> #include <asm/irq_cpu.h> #include <asm/i8259.h> @@ -30,7 +31,7 @@ * The generic i8259_irq() make the kernel hang on booting. Since we cannot * get the irq via the IRR directly, we access the ISR instead. */ -static inline int mach_i8259_irq(void) +int mach_i8259_irq(void) { int irq, isr; @@ -60,6 +61,7 @@ static inline int mach_i8259_irq(void) return irq; } +EXPORT_SYMBOL(mach_i8259_irq); static void i8259_irqdispatch(void) { diff --git a/arch/mips/loongson/lemote-2f/pm.c b/arch/mips/loongson/lemote-2f/pm.c index 8090d051422..81c06410aa7 100644 --- a/arch/mips/loongson/lemote-2f/pm.c +++ b/arch/mips/loongson/lemote-2f/pm.c @@ -14,6 +14,7 @@ #include <linux/interrupt.h> #include <linux/pm.h> #include <linux/i8042.h> +#include <linux/module.h> #include <asm/i8259.h> #include <asm/mipsregs.h> @@ -21,6 +22,8 @@ #include <loongson.h> +#include "ec_kb3310b.h" + #define I8042_KBD_IRQ 1 #define I8042_CTR_KBDINT 0x01 #define I8042_CTR_KBDDIS 0x10 @@ -49,9 +52,6 @@ static int i8042_enable_kbd_port(void) return 0; } -/* - * The i8042 is connnected to i8259A - */ void setup_wakeup_events(void) { int irq_mask; @@ -65,9 +65,74 @@ void setup_wakeup_events(void) /* enable keyboard port */ i8042_enable_kbd_port(); + + /* Wakeup CPU via SCI lid open event */ + outb(irq_mask & ~(1 << PIC_CASCADE_IR), PIC_MASTER_IMR); + inb(PIC_MASTER_IMR); + outb(0xff & ~(1 << (SCI_IRQ_NUM - 8)), PIC_SLAVE_IMR); + inb(PIC_SLAVE_IMR); + break; default: break; } } + +static struct delayed_work lid_task; +static int initialized; +/* yeeloong_report_lid_status will be implemented in yeeloong_laptop.c */ +sci_handler yeeloong_report_lid_status; +EXPORT_SYMBOL(yeeloong_report_lid_status); +static void yeeloong_lid_update_task(struct work_struct *work) +{ + if (yeeloong_report_lid_status) + yeeloong_report_lid_status(BIT_LID_DETECT_ON); +} + +int wakeup_loongson(void) +{ + int irq; + + /* query the interrupt number */ + irq = mach_i8259_irq(); + if (irq < 0) + return 0; + + printk(KERN_INFO "%s: irq = %d\n", __func__, irq); + + if (irq == I8042_KBD_IRQ) + return 1; + else if (irq == SCI_IRQ_NUM) { + int ret, sci_event; + /* query the event number */ + ret = ec_query_seq(CMD_GET_EVENT_NUM); + if (ret < 0) + return 0; + sci_event = ec_get_event_num(); + if (sci_event < 0) + return 0; + if (sci_event == EVENT_LID) { + int lid_status; + /* check the LID status */ + lid_status = ec_read(REG_LID_DETECT); + /* wakeup cpu when people open the LID */ + if (lid_status == BIT_LID_DETECT_ON) { + /* If we call it directly here, the WARNING + * will be sent out by getnstimeofday + * via "WARN_ON(timekeeping_suspended);" + * because we can not schedule in suspend mode. + */ + if (initialized == 0) { + INIT_DELAYED_WORK(&lid_task, + yeeloong_lid_update_task); + initialized = 1; + } + schedule_delayed_work(&lid_task, 1); + return 1; + } + } + } + + return 0; +} |