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2005-04-18 Jennifer Averett <jennifer.averett@oarcorp.com>

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* libchip/serial/ns16550.c: Modified
	ISR to work with PPC new exception processing
This commit is contained in:
Jennifer Averett
2005-04-18 17:37:50 +00:00
parent f0a25283d9
commit c163605f80
2 changed files with 68 additions and 0 deletions
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63
c/src/libchip/serial/ns16550.c
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@@ -67,7 +67,13 @@ console_fns ns16550_fns_polled = {
FALSE /* deviceOutputUsesInterrupts */
};
#if defined(__PPC__)
#ifdef _OLD_EXCEPTIONS
extern void set_vector( rtems_isr_entry, rtems_vector_number, int );
#else
#include <bsp/irq.h>
#endif
#endif
/*
* ns16550_init
@@ -510,6 +516,9 @@ NS16550_STATIC void ns16550_process(
} while((ucInterruptId&0xf)!=0x1);
}
#if defined(__PPC__)
#ifdef _OLD_EXCEPTIONS
/*
* ns16550_isr
*/
@@ -528,6 +537,26 @@ NS16550_STATIC rtems_isr ns16550_isr(
}
}
#else
NS16550_STATIC rtems_isr ns16550_isr(
void *entry
)
{
console_tbl *ptr = entry;
int minor;
for(minor=0;minor<Console_Port_Count;minor++) {
if( &Console_Port_Tbl[minor] == ptr ) {
ns16550_process(minor);
}
}
}
#endif
#endif
/*
* ns16550_enable_interrupts
*
@@ -554,6 +583,8 @@ NS16550_STATIC void ns16550_enable_interrupts(
* This routine initializes the port to operate in interrupt driver mode.
*/
#if defined(__PPC__)
#ifdef _OLD_EXCEPTIONS
NS16550_STATIC void ns16550_initialize_interrupts(int minor)
{
ns16550_init(minor);
@@ -561,10 +592,42 @@ NS16550_STATIC void ns16550_initialize_interrupts(int minor)
Console_Port_Data[minor].bActive = FALSE;
set_vector(ns16550_isr, Console_Port_Tbl[minor].ulIntVector, 1);
ns16550_enable_interrupts(minor, NS16550_ENABLE_ALL_INTR);
}
#else
static void null_fun(){}
NS16550_STATIC void ns16550_initialize_interrupts(int minor)
{
rtems_irq_connect_data IrqData = {0,
ns16550_isr,
&Console_Port_Data[minor],
(rtems_irq_enable)null_fun,
(rtems_irq_disable)null_fun,
(rtems_irq_is_enabled)null_fun,
NULL
};
ns16550_init(minor);
Console_Port_Data[minor].bActive = FALSE;
IrqData.name = (rtems_irq_symbolic_name)(
(unsigned int)BSP_PCI_IRQ0 + Console_Port_Tbl[minor].ulIntVector );
if (!BSP_install_rtems_shared_irq_handler (&IrqData)) {
printk("Error installing interrupt handler!\n");
rtems_fatal_error_occurred(1);
}
ns16550_enable_interrupts(minor, NS16550_ENABLE_ALL_INTR);
}
#endif
#endif
/*
* ns16550_write_support_int
*