WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/src/drivers/kbd.c


/*
 * Copyright (C) 2006 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 sparc64
 * @{
 */
/** @file
 */
 
#include <arch/drivers/kbd.h>
#include <genarch/ofw/ofw_tree.h>
#ifdef CONFIG_Z8530
#include <genarch/kbd/z8530.h>
#endif
#ifdef CONFIG_NS16550
#include <genarch/kbd/ns16550.h>
#endif
 
#include <arch/mm/page.h>
#include <arch/types.h>
#include <typedefs.h>
#include <align.h>
#include <func.h>
#include <print.h>
 
volatile uint8_t *kbd_virt_address = NULL;
 
kbd_type_t kbd_type = KBD_UNKNOWN;
 
/** Initialize keyboard.
 *
 * Traverse OpenFirmware device tree in order to find necessary
 * info about the keyboard device.
 *
 * @param node Keyboard device node.
 */
void kbd_init(ofw_tree_node_t *node)
{
    size_t offset;
    uintptr_t aligned_addr;
    ofw_tree_property_t *prop;
    const char *name;
   
    name = ofw_tree_node_name(node);
   
    /*
     * Determine keyboard serial controller type.
     */
    if (strcmp(name, "zs") == 0)
        kbd_type = KBD_Z8530;
    else if (strcmp(name, "su") == 0)
        kbd_type = KBD_NS16550;
   
    if (kbd_type == KBD_UNKNOWN) {
        printf("Unknown keyboard device.\n");
        return;
    }
   
    /*
     * Read 'interrupts' property.
     */
    uint32_t interrupts;
    prop = ofw_tree_getprop(node, "interrupts");
    if (!prop || !prop->value)
        panic("Can't find \"interrupts\" property.\n");
    interrupts = *((uint32_t *) prop->value);
 
    /*
     * Read 'reg' property.
     */
    prop = ofw_tree_getprop(node, "reg");
    if (!prop || !prop->value)
        panic("Can't find \"reg\" property.\n");
   
    uintptr_t pa;
    size_t size;
    int inr;
   
    switch (kbd_type) {
    case KBD_Z8530:
        size = ((ofw_fhc_reg_t *) prop->value)->size;
        if (!ofw_fhc_apply_ranges(node->parent, ((ofw_fhc_reg_t *) prop->value) , &pa)) {
            printf("Failed to determine keyboard address.\n");
            return;
        }
        if (!ofw_fhc_map_interrupt(node->parent, ((ofw_fhc_reg_t *) prop->value), interrupts, &inr)) {
            printf("Failed to determine keyboard interrupt.\n");
            return;
        }
        break;
    case KBD_NS16550:
        size = ((ofw_ebus_reg_t *) prop->value)->size;
        if (!ofw_ebus_apply_ranges(node->parent, ((ofw_ebus_reg_t *) prop->value) , &pa)) {
            printf("Failed to determine keyboard address.\n");
            return;
        }
        if (!ofw_ebus_map_interrupt(node->parent, ((ofw_ebus_reg_t *) prop->value), interrupts, &inr)) {
            printf("Failed to determine keyboard interrupt.\n");
            return;
        }
        break;
    default:
        panic("Unexpected type.\n");
    }
   
    /*
     * We need to pass aligned address to hw_map().
     * However, the physical keyboard address can
     * be pretty much unaligned, depending on the
     * underlying controller.
     */
    aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
    offset = pa - aligned_addr;
    kbd_virt_address = (uint8_t *) hw_map(aligned_addr, offset + size) + offset;
 
    switch (kbd_type) {
#ifdef CONFIG_Z8530
    case KBD_Z8530:
        z8530_init();
        break;
#endif
#ifdef CONFIG_NS16550
    case KBD_NS16550:
        ns16550_init();
        break;
#endif
    default:
        printf("Kernel is not compiled with the necessary keyboard driver this machine requires.\n");
    }
}
 
/** @}
 */
 

Rev 1911	Rev 1912
1	/*	1	/*
2	* Copyright (C) 2006 Jakub Jermar	2	* Copyright (C) 2006 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 sparc64	29	/** @addtogroup sparc64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/drivers/kbd.h>	35	#include <arch/drivers/kbd.h>
36	#include <genarch/ofw/ofw_tree.h>	36	#include <genarch/ofw/ofw_tree.h>
37	#ifdef CONFIG_Z8530	37	#ifdef CONFIG_Z8530
38	#include <genarch/kbd/z8530.h>	38	#include <genarch/kbd/z8530.h>
39	#endif	39	#endif
40	#ifdef CONFIG_NS16550	40	#ifdef CONFIG_NS16550
41	#include <genarch/kbd/ns16550.h>	41	#include <genarch/kbd/ns16550.h>
42	#endif	42	#endif
43		43
44	#include <arch/mm/page.h>	44	#include <arch/mm/page.h>
45	#include <arch/types.h>	45	#include <arch/types.h>
46	#include <typedefs.h>	46	#include <typedefs.h>
47	#include <align.h>	47	#include <align.h>
48	#include <func.h>	48	#include <func.h>
49	#include <print.h>	49	#include <print.h>
50		50
51	volatile uint8_t *kbd_virt_address = NULL;	51	volatile uint8_t *kbd_virt_address = NULL;
52		52
53	kbd_type_t kbd_type = KBD_UNKNOWN;	53	kbd_type_t kbd_type = KBD_UNKNOWN;
54		54
55	/** Initialize keyboard.	55	/** Initialize keyboard.
56	*	56	*
57	* Traverse OpenFirmware device tree in order to find necessary	57	* Traverse OpenFirmware device tree in order to find necessary
58	* info about the keyboard device.	58	* info about the keyboard device.
59	*	59	*
60	* @param node Keyboard device node.	60	* @param node Keyboard device node.
61	*/	61	*/
62	void kbd_init(ofw_tree_node_t *node)	62	void kbd_init(ofw_tree_node_t *node)
63	{	63	{
64	size_t offset;	64	size_t offset;
65	uintptr_t aligned_addr;	65	uintptr_t aligned_addr;
66	ofw_tree_property_t *prop;	66	ofw_tree_property_t *prop;
67	const char *name;	67	const char *name;
68		68
69	name = ofw_tree_node_name(node);	69	name = ofw_tree_node_name(node);
70		70
71	/*	71	/*
72	* Determine keyboard serial controller type.	72	* Determine keyboard serial controller type.
73	*/	73	*/
74	if (strcmp(name, "zs") == 0)	74	if (strcmp(name, "zs") == 0)
75	kbd_type = KBD_Z8530;	75	kbd_type = KBD_Z8530;
76	else if (strcmp(name, "su") == 0)	76	else if (strcmp(name, "su") == 0)
77	kbd_type = KBD_NS16550;	77	kbd_type = KBD_NS16550;
78		78
79	if (kbd_type == KBD_UNKNOWN) {	79	if (kbd_type == KBD_UNKNOWN) {
80	printf("Unknown keyboard device.\n");	80	printf("Unknown keyboard device.\n");
81	return;	81	return;
82	}	82	}
83		83
84	/*	84	/*
85	* Read 'interrupts' property.	85	* Read 'interrupts' property.
86	*/	86	*/
87	uint32_t interrupts;	87	uint32_t interrupts;
88	prop = ofw_tree_getprop(node, "interrupts");	88	prop = ofw_tree_getprop(node, "interrupts");
89	if (!prop \|\| !prop->value)	89	if (!prop \|\| !prop->value)
90	panic("Can't find \"interrupts\" property.\n");	90	panic("Can't find \"interrupts\" property.\n");
91	interrupts = ((uint32_t ) prop->value);	91	interrupts = ((uint32_t ) prop->value);
92		92
93	/*	93	/*
94	* Read 'reg' property.	94	* Read 'reg' property.
95	*/	95	*/
96	prop = ofw_tree_getprop(node, "reg");	96	prop = ofw_tree_getprop(node, "reg");
97	if (!prop \|\| !prop->value)	97	if (!prop \|\| !prop->value)
98	panic("Can't find \"reg\" property.\n");	98	panic("Can't find \"reg\" property.\n");
99		99
100	uintptr_t pa;	100	uintptr_t pa;
101	size_t size;	101	size_t size;
102	int inr;	102	int inr;
103		103
104	switch (kbd_type) {	104	switch (kbd_type) {
105	case KBD_Z8530:	105	case KBD_Z8530:
106	size = ((ofw_fhc_reg_t *) prop->value)->size;	106	size = ((ofw_fhc_reg_t *) prop->value)->size;
107	if (!ofw_fhc_apply_ranges(node->parent, ((ofw_fhc_reg_t *) prop->value) , &pa)) {	107	if (!ofw_fhc_apply_ranges(node->parent, ((ofw_fhc_reg_t *) prop->value) , &pa)) {
108	printf("Failed to determine keyboard address.\n");	108	printf("Failed to determine keyboard address.\n");
109	return;	109	return;
110	}	110	}
111	if (!ofw_fhc_map_interrupts(node->parent, ((ofw_fhc_reg_t *) prop->value), interrupts, &inr)) {	111	if (!ofw_fhc_map_interrupt(node->parent, ((ofw_fhc_reg_t *) prop->value), interrupts, &inr)) {
112	printf("Failed to determine keyboard interrupts.\n");	112	printf("Failed to determine keyboard interrupt.\n");
113	return;	113	return;
114	}	114	}
115	break;	115	break;
116	case KBD_NS16550:	116	case KBD_NS16550:
117	size = ((ofw_ebus_reg_t *) prop->value)->size;	117	size = ((ofw_ebus_reg_t *) prop->value)->size;
118	if (!ofw_ebus_apply_ranges(node->parent, ((ofw_ebus_reg_t *) prop->value) , &pa)) {	118	if (!ofw_ebus_apply_ranges(node->parent, ((ofw_ebus_reg_t *) prop->value) , &pa)) {
119	printf("Failed to determine keyboard address.\n");	119	printf("Failed to determine keyboard address.\n");
120	return;	120	return;
121	}	121	}
122	if (!ofw_ebus_map_interrupts(node->parent, ((ofw_ebus_reg_t *) prop->value), interrupts, &inr)) {	122	if (!ofw_ebus_map_interrupt(node->parent, ((ofw_ebus_reg_t *) prop->value), interrupts, &inr)) {
123	printf("Failed to determine keyboard interrupts.\n");	123	printf("Failed to determine keyboard interrupt.\n");
124	return;	124	return;
125	}	125	}
126	break;	126	break;
127	default:	127	default:
128	panic("Unexpected type.\n");	128	panic("Unexpected type.\n");
129	}	129	}
130		130
131	/*	131	/*
132	* We need to pass aligned address to hw_map().	132	* We need to pass aligned address to hw_map().
133	* However, the physical keyboard address can	133	* However, the physical keyboard address can
134	* be pretty much unaligned, depending on the	134	* be pretty much unaligned, depending on the
135	* underlying controller.	135	* underlying controller.
136	*/	136	*/
137	aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);	137	aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
138	offset = pa - aligned_addr;	138	offset = pa - aligned_addr;
139	kbd_virt_address = (uint8_t *) hw_map(aligned_addr, offset + size) + offset;	139	kbd_virt_address = (uint8_t *) hw_map(aligned_addr, offset + size) + offset;
140		140
141	switch (kbd_type) {	141	switch (kbd_type) {
142	#ifdef CONFIG_Z8530	142	#ifdef CONFIG_Z8530
143	case KBD_Z8530:	143	case KBD_Z8530:
144	z8530_init();	144	z8530_init();
145	break;	145	break;
146	#endif	146	#endif
147	#ifdef CONFIG_NS16550	147	#ifdef CONFIG_NS16550
148	case KBD_NS16550:	148	case KBD_NS16550:
149	ns16550_init();	149	ns16550_init();
150	break;	150	break;
151	#endif	151	#endif
152	default:	152	default:
153	printf("Kernel is not compiled with the necessary keyboard driver this machine requires.\n");	153	printf("Kernel is not compiled with the necessary keyboard driver this machine requires.\n");
154	}	154	}
155	}	155	}
156		156
157	/** @}	157	/** @}
158	*/	158	*/
159		159

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/drivers/kbd.c – Rev 1911 → 1912