Subversion Repositories HelenOS

Rev

Rev 2131 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2131 Rev 2456
Line 47... Line 47...
47 
#include <console/chardev.h>
 47 
#include <console/chardev.h>
48 
#include <console/console.h>
 48 
#include <console/console.h>
49 
#include <interrupt.h>
 49 
#include <interrupt.h>
50 
#include <sysinfo/sysinfo.h>
 50 
#include <sysinfo/sysinfo.h>
51 
#include <ipc/irq.h>
 51 
#include <ipc/irq.h>
- 
 
 52 
#include <generic/synch/rcu.h>
52 
 
 53 
 
53 
/* Keyboard commands. */
 54 
/* Keyboard commands. */
54 
#define KBD_ENABLE  0xf4
 55 
#define KBD_ENABLE  0xf4
55 
#define KBD_DISABLE 0xf5
 56 
#define KBD_DISABLE 0xf5
56 
#define KBD_ACK     0xfa
 57 
#define KBD_ACK     0xfa
Line 105... Line 106...
105 
    i8042_command_write(i8042_SET_COMMAND);
 106 
    i8042_command_write(i8042_SET_COMMAND);
106 
    i8042_wait();
 107 
    i8042_wait();
107 
    i8042_data_write(i8042_COMMAND);
 108 
    i8042_data_write(i8042_COMMAND);
108 
    i8042_wait();
 109 
    i8042_wait();
109 
 
 110 
 
110 
    spinlock_lock(&i8042_kbd_irq.lock);
 111 
    //rcu_read_lock() is not needed, ints are disabled
111 
    i8042_kbd_irq.notif_cfg.notify = false;
 112 
    //rcu: atomic update doesn't need reallocation
112 
    spinlock_unlock(&i8042_kbd_irq.lock);
 113 
    rcu_dereference_pointer(i8042_kbd_irq.notif_cfg).notify = false;
113 
   
 114 
   
114 
    spinlock_lock(&i8042_mouse_irq.lock);
 - 
 
115 
    i8042_mouse_irq.notif_cfg.notify = false;
 115 
    rcu_dereference_pointer(i8042_mouse_irq.notif_cfg).notify = false;
116 
    spinlock_unlock(&i8042_mouse_irq.lock);
 - 
 
117 
   
 116 
   
118 
    interrupts_restore(ipl);
 117 
    interrupts_restore(ipl);
119 
}
 118 
}
120 
 
 119 
 
121 
void i8042_release(void)
 120 
void i8042_release(void)
122 
{
 121 
{
123 
    ipl_t ipl = interrupts_disable();
 122 
    ipl_t ipl = interrupts_disable();
124 
   
 - 
 
- 
 
 123 
    //rcu: atomic update doesn't need reallocation
125 
    spinlock_lock(&i8042_kbd_irq.lock);
 124 
    spinlock_lock(&i8042_kbd_irq.lock);
126 
    if (i8042_kbd_irq.notif_cfg.answerbox)
 125 
    if (rcu_dereference_pointer(i8042_kbd_irq.notif_cfg).answerbox)
127 
        i8042_kbd_irq.notif_cfg.notify = true;
 126 
        rcu_dereference_pointer(i8042_kbd_irq.notif_cfg).notify = true;
128 
    spinlock_unlock(&i8042_kbd_irq.lock);
 127 
    spinlock_unlock(&i8042_kbd_irq.lock);
129 
   
 128 
   
130 
    spinlock_lock(&i8042_mouse_irq.lock);
 129 
    spinlock_lock(&i8042_mouse_irq.lock);
131 
    if (i8042_mouse_irq.notif_cfg.answerbox)
 130 
    if (rcu_dereference_pointer(i8042_mouse_irq.notif_cfg).answerbox)
132 
        i8042_mouse_irq.notif_cfg.notify = true;
 131 
        rcu_dereference_pointer(i8042_mouse_irq.notif_cfg).notify = true;
133 
    spinlock_unlock(&i8042_mouse_irq.lock);
 132 
    spinlock_unlock(&i8042_mouse_irq.lock);
134 
   
 133 
   
135 
    interrupts_restore(ipl);
 134 
    interrupts_restore(ipl);
136 
}
 135 
}
137 
 
 136 
 
Line 140... Line 139...
140 
    return IRQ_ACCEPT;
 139 
    return IRQ_ACCEPT;
141 
}
 140 
}
142 
 
 141 
 
143 
static void i8042_kbd_irq_handler(irq_t *irq, void *arg, ...)
 142 
static void i8042_kbd_irq_handler(irq_t *irq, void *arg, ...)
144 
{
 143 
{
145 
    if (irq->notif_cfg.notify && irq->notif_cfg.answerbox)
 144 
    if (rcu_dereference_pointer(irq->notif_cfg).notify && rcu_dereference_pointer(irq->notif_cfg).answerbox)
146 
        ipc_irq_send_notif(irq);
 145 
        ipc_irq_send_notif(irq);
147 
    else {
 146 
    else {
148 
        uint8_t x;
 147 
        uint8_t x;
149 
        uint8_t status;
 148 
        uint8_t status;
150 
       
 149 
       
Line 162... Line 161...
162 
    }
 161 
    }
163 
}
 162 
}
164 
 
 163 
 
165 
static void i8042_mouse_irq_handler(irq_t *irq, void *arg, ...)
 164 
static void i8042_mouse_irq_handler(irq_t *irq, void *arg, ...)
166 
{
 165 
{
167 
    if (irq->notif_cfg.notify && irq->notif_cfg.answerbox)
 166 
    if (rcu_dereference_pointer(irq->notif_cfg).notify && rcu_dereference_pointer(irq->notif_cfg).answerbox)
168 
        ipc_irq_send_notif(irq);
 167 
        ipc_irq_send_notif(irq);
169 
}
 168 
}
170 
 
 169 
 
171 
/** Initialize i8042. */
 170 
/** Initialize i8042. */
172 
void i8042_init(devno_t kbd_devno, inr_t kbd_inr, devno_t mouse_devno, inr_t mouse_inr)
 171 
void i8042_init(devno_t kbd_devno, inr_t kbd_inr, devno_t mouse_devno, inr_t mouse_inr)