24 int install_irq_handler ( irq_t irq, segoff_t *handler,  in install_irq_handler()  argument
27 	segoff_t *irq_vector = IRQ_VECTOR ( irq );  in install_irq_handler()
28 	*previously_enabled = irq_enabled ( irq );  in install_irq_handler()
30 	if ( irq > IRQ_MAX ) {  in install_irq_handler()
37 	if ( *previously_enabled ) disable_irq ( irq );  in install_irq_handler()
39 		  handler->segment, handler->offset, irq,  in install_irq_handler()
45 	if ( *previously_enabled ) enable_irq ( irq );  in install_irq_handler()
55 int remove_irq_handler ( irq_t irq, segoff_t *handler,  in remove_irq_handler()  argument
58 	segoff_t *irq_vector = IRQ_VECTOR ( irq );  in remove_irq_handler()
60 	if ( irq > IRQ_MAX ) {  in remove_irq_handler()
70 	DBG ( "Removing handler for IRQ %d\n", irq );  in remove_irq_handler()
71 	disable_irq ( irq );  in remove_irq_handler()
74 	if ( *previously_enabled ) enable_irq ( irq );  in remove_irq_handler()
81 void send_specific_eoi ( irq_t irq ) {  in send_specific_eoi()  argument
82 	DBG ( "Sending specific EOI for IRQ %d\n", irq );  in send_specific_eoi()
83 	outb ( ICR_EOI_SPECIFIC | ICR_VALUE(irq), ICR_REG(irq) );  in send_specific_eoi()
84 	if ( irq >= IRQ_PIC_CUTOFF ) {  in send_specific_eoi()
95 	int irq = 0;  in dump_irq_status()  local
97 	for ( irq = 0; irq < 16; irq++ ) {  in dump_irq_status()
98 		if ( irq_enabled ( irq ) ) {  in dump_irq_status()
99 			printf ( "IRQ%d enabled, ISR at %hx:%hx\n", irq,  in dump_irq_status()
100 				 IRQ_VECTOR(irq)->segment,  in dump_irq_status()
101 				 IRQ_VECTOR(irq)->offset );  in dump_irq_status()
129 int install_undi_irq_handler ( irq_t irq, segoff_t entrypointsp ) {  in install_undi_irq_handler()  argument
141 	DBG ( "Installing undi IRQ handler on IRQ %d\n", irq );  in install_undi_irq_handler()
143 	*pxenv_undi_irq = irq;  in install_undi_irq_handler()
144 	if ( ! install_irq_handler ( irq, &undi_irq_handler_segoff,  in install_undi_irq_handler()
148 	undi_irq_installed_on = irq;  in install_undi_irq_handler()
150 	DBG ( "Disabling undi IRQ %d\n", irq );  in install_undi_irq_handler()
151 	disable_irq ( irq );  in install_undi_irq_handler()
161 int remove_undi_irq_handler ( irq_t irq ) {  in remove_undi_irq_handler()  argument
165 	if ( irq != undi_irq_installed_on ) {  in remove_undi_irq_handler()
167 		      "is installed on IRQ %d\n", irq,  in remove_undi_irq_handler()
172 	if ( ! remove_irq_handler ( irq, &undi_irq_handler_segoff,  in remove_undi_irq_handler()
191 int undi_irq_triggered ( irq_t irq ) {  in undi_irq_triggered()  argument
202 	if ( irq == IRQ_NONE ) {};	  in undi_irq_triggered()