| /trunk/kernel/genarch/src/kbd/ns16550.c |
|---|
| 80,19 → 80,28 |
| /** Initialize keyboard and service interrupts using kernel routine */ |
| void ns16550_grab(void) |
| { |
| ipl_t ipl = interrupts_disable(); |
| ns16550_ier_write(&ns16550, IER_ERBFI); /* enable receiver interrupt */ |
| while (ns16550_lsr_read(&ns16550) & LSR_DATA_READY) |
| (void) ns16550_rbr_read(&ns16550); |
| spinlock_lock(&ns16550_irq.lock); |
| ns16550_irq.notif_cfg.notify = false; |
| spinlock_unlock(&ns16550_irq.lock); |
| interrupts_restore(ipl); |
| } |
| /** Resume the former interrupt vector */ |
| void ns16550_release(void) |
| { |
| ipl_t ipl = interrupts_disable(); |
| spinlock_lock(&ns16550_irq.lock); |
| if (ns16550_irq.notif_cfg.answerbox) |
| ns16550_irq.notif_cfg.notify = true; |
| spinlock_unlock(&ns16550_irq.lock); |
| interrupts_restore(ipl); |
| } |
| /** Initialize ns16550. |
| /trunk/kernel/genarch/src/kbd/z8530.c |
|---|
| 74,6 → 74,8 |
| /** Initialize keyboard and service interrupts using kernel routine. */ |
| void z8530_grab(void) |
| { |
| ipl_t ipl = interrupts_disable(); |
| (void) z8530_read_a(&z8530, RR8); |
| /* |
| 89,14 → 91,21 |
| z8530_write_a(&z8530, WR9, WR9_MIE); /* Master Interrupt Enable. */ |
| spinlock_lock(&z8530_irq.lock); |
| z8530_irq.notif_cfg.notify = false; |
| spinlock_unlock(&z8530_irq.lock); |
| interrupts_restore(ipl); |
| } |
| /** Resume the former IPC notification behavior. */ |
| void z8530_release(void) |
| { |
| ipl_t ipl = interrupts_disable(); |
| spinlock_lock(&z8530_irq.lock); |
| if (z8530_irq.notif_cfg.answerbox) |
| z8530_irq.notif_cfg.notify = true; |
| spinlock_unlock(&z8530_irq.lock); |
| interrupts_restore(ipl); |
| } |
| /** Initialize z8530. */ |