WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/src/trap/interrupt.c


/*
 * Copyright (C) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup sparc64interrupt
 * @{
 */
/** @file
 */
 
#include <arch/interrupt.h>
#include <arch/trap/interrupt.h>
#include <interrupt.h>
#include <arch/drivers/fhc.h>
#include <arch/drivers/kbd.h>
#include <typedefs.h>
#include <arch/types.h>
#include <debug.h>
#include <ipc/sysipc.h>
#include <arch/asm.h>
#include <arch/barrier.h>
#include <print.h>
#include <genarch/kbd/z8530.h>
 
/** Register Interrupt Level Handler.
 *
 * @param n Interrupt Level (1 - 15).
 * @param name Short descriptive string.
 * @param f Handler.
 */
void interrupt_register(int n, const char *name, iroutine f)
{
    ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
   
    exc_register(n - 1, name, f);
}
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(unative_t irq)
{
#ifdef CONFIG_Z8530
    if (kbd_type == KBD_Z8530)
        z8530_belongs_to_kernel = false;
#endif
}
 
void interrupt(int n, istate_t *istate)
{
    uint64_t intrcv;
    uint64_t data0;
 
    intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
    data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);
 
    switch (data0) {
#ifdef CONFIG_Z8530
    case Z8530_INTRCV_DATA0:
        if (kbd_type != KBD_Z8530)
            break;
        /*
         * So far, we know we got this interrupt through the FHC.
         * Since we don't have enough information about the FHC and
         * because the interrupt looks like level sensitive,
         * we cannot handle it by scheduling one of the level
         * interrupt traps. Call the interrupt handler directly.
         */
 
        if (z8530_belongs_to_kernel)
            z8530_interrupt();
        else
            ipc_irq_send_notif(0);
        fhc_uart_reset();
        break;
 
#endif
    }
 
    membar();
    asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
}
 
/** @}
 */
 

Rev 1875	Rev 1896
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup sparc64interrupt	29	/** @addtogroup sparc64interrupt
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/interrupt.h>	35	#include <arch/interrupt.h>
36	#include <arch/trap/interrupt.h>	36	#include <arch/trap/interrupt.h>
37	#include <interrupt.h>	37	#include <interrupt.h>
38	#include <arch/drivers/fhc.h>	38	#include <arch/drivers/fhc.h>
-		39	#include <arch/drivers/kbd.h>
39	#include <typedefs.h>	40	#include <typedefs.h>
40	#include <arch/types.h>	41	#include <arch/types.h>
41	#include <debug.h>	42	#include <debug.h>
42	#include <ipc/sysipc.h>	43	#include <ipc/sysipc.h>
43	#include <arch/asm.h>	44	#include <arch/asm.h>
44	#include <arch/barrier.h>	45	#include <arch/barrier.h>
45	#include <print.h>	46	#include <print.h>
46	#include <genarch/kbd/z8530.h>	47	#include <genarch/kbd/z8530.h>
47		48
48	/** Register Interrupt Level Handler.	49	/** Register Interrupt Level Handler.
49	*	50	*
50	* @param n Interrupt Level (1 - 15).	51	* @param n Interrupt Level (1 - 15).
51	* @param name Short descriptive string.	52	* @param name Short descriptive string.
52	* @param f Handler.	53	* @param f Handler.
53	*/	54	*/
54	void interrupt_register(int n, const char *name, iroutine f)	55	void interrupt_register(int n, const char *name, iroutine f)
55	{	56	{
56	ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);	57	ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
57		58
58	exc_register(n - 1, name, f);	59	exc_register(n - 1, name, f);
59	}	60	}
60		61
61	/* Reregister irq to be IPC-ready */	62	/* Reregister irq to be IPC-ready */
62	void irq_ipc_bind_arch(unative_t irq)	63	void irq_ipc_bind_arch(unative_t irq)
63	{	64	{
64	#ifdef CONFIG_Z8530	65	#ifdef CONFIG_Z8530
-		66	if (kbd_type == KBD_Z8530)
65	z8530_belongs_to_kernel = false;	67	z8530_belongs_to_kernel = false;
66	#endif	68	#endif
67	}	69	}
68		70
69	void interrupt(int n, istate_t *istate)	71	void interrupt(int n, istate_t *istate)
70	{	72	{
71	uint64_t intrcv;	73	uint64_t intrcv;
72	uint64_t data0;	74	uint64_t data0;
73		75
74	intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);	76	intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
75	data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);	77	data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);
76		78
77	switch (data0) {	79	switch (data0) {
78	#ifdef CONFIG_Z8530	80	#ifdef CONFIG_Z8530
79	case Z8530_INTRCV_DATA0:	81	case Z8530_INTRCV_DATA0:
-		82	if (kbd_type != KBD_Z8530)
-		83	break;
80	/*	84	/*
81	* So far, we know we got this interrupt through the FHC.	85	* So far, we know we got this interrupt through the FHC.
82	* Since we don't have enough information about the FHC and	86	* Since we don't have enough information about the FHC and
83	* because the interrupt looks like level sensitive,	87	* because the interrupt looks like level sensitive,
84	* we cannot handle it by scheduling one of the level	88	* we cannot handle it by scheduling one of the level
85	* interrupt traps. Call the interrupt handler directly.	89	* interrupt traps. Call the interrupt handler directly.
86	*/	90	*/
87		91
88	if (z8530_belongs_to_kernel)	92	if (z8530_belongs_to_kernel)
89	z8530_interrupt();	93	z8530_interrupt();
90	else	94	else
91	ipc_irq_send_notif(0);	95	ipc_irq_send_notif(0);
92	fhc_uart_reset();	96	fhc_uart_reset();
93	break;	97	break;
94		98
95	#endif	99	#endif
96	}	100	}
97		101
98	membar();	102	membar();
99	asi_u64_write(ASI_INTR_RECEIVE, 0, 0);	103	asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
100	}	104	}
101		105
102	/** @}	106	/** @}
103	*/	107	*/
104		108

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/trap/interrupt.c – Rev 1875 → 1896