WebSVN – HelenOS – Diff – /branches/dynload/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 <ddi/device.h>
#include <ddi/irq.h>
#include <arch/mm/page.h>
#include <arch/types.h>
#include <align.h>
#include <string.h>
#include <print.h>
#include <sysinfo/sysinfo.h>
 
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;
    cir_t cir;
    void *cir_arg;
 
#ifdef CONFIG_NS16550
    ns16550_t *ns16550;
#endif
#ifdef CONFIG_Z8530
    z8530_t *z8530;
#endif
   
    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("Cannot find 'interrupt' property.");
    interrupts = *((uint32_t *) prop->value);
   
    /*
     * Read 'reg' property.
     */
    prop = ofw_tree_getprop(node, "reg");
    if ((!prop) || (!prop->value))
        panic("Cannot find 'reg' property.");
   
    uintptr_t pa;
    size_t size;
    devno_t devno;
    inr_t 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, &cir,
            &cir_arg)) {
            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, &cir,
            &cir_arg)) {
            printf("Failed to determine keyboard interrupt.\n");
            return;
        };
        break;
    default:
        panic("Unexpected keyboard type.");
    }
   
    /*
     * 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;
   
    switch (kbd_type) {
#ifdef CONFIG_Z8530
    case KBD_Z8530:
        devno = device_assign_devno();
        z8530 = (z8530_t *) hw_map(aligned_addr, offset + size) +
            offset;
        (void) z8530_init(z8530, devno, inr, cir, cir_arg);
       
        /*
         * This is the necessary evil until the userspace drivers are
         * entirely self-sufficient.
         */
        sysinfo_set_item_val("kbd", NULL, true);
        sysinfo_set_item_val("kbd.type", NULL, KBD_Z8530);
        sysinfo_set_item_val("kbd.devno", NULL, devno);
        sysinfo_set_item_val("kbd.inr", NULL, inr);
        sysinfo_set_item_val("kbd.address.kernel", NULL,
            (uintptr_t) z8530);
        sysinfo_set_item_val("kbd.address.physical", NULL, pa);
        break;
#endif
#ifdef CONFIG_NS16550
    case KBD_NS16550:
        devno = device_assign_devno();
        ns16550 = (ns16550_t *) hw_map(aligned_addr, offset + size) +
            offset;
        (void) ns16550_init(ns16550, devno, inr, cir, cir_arg);
       
        /*
         * This is the necessary evil until the userspace driver is
         * entirely self-sufficient.
         */
        sysinfo_set_item_val("kbd", NULL, true);
        sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
        sysinfo_set_item_val("kbd.devno", NULL, devno);
        sysinfo_set_item_val("kbd.inr", NULL, inr);
        sysinfo_set_item_val("kbd.address.kernel", NULL,
            (uintptr_t) ns16550);
        sysinfo_set_item_val("kbd.address.physical", NULL, pa);
        break;
#endif
    default:
        printf("Kernel is not compiled with the necessary keyboard "
            "driver this machine requires.\n");
    }
}
 
/** @}
 */
 

Rev 4344	Rev 4345
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	#include <ddi/device.h>	43	#include <ddi/device.h>
44	#include <ddi/irq.h>	44	#include <ddi/irq.h>
45	#include <arch/mm/page.h>	45	#include <arch/mm/page.h>
46	#include <arch/types.h>	46	#include <arch/types.h>
47	#include <align.h>	47	#include <align.h>
48	#include <func.h>	48	#include <string.h>
49	#include <print.h>	49	#include <print.h>
50	#include <sysinfo/sysinfo.h>	50	#include <sysinfo/sysinfo.h>
51		51
52	kbd_type_t kbd_type = KBD_UNKNOWN;	52	kbd_type_t kbd_type = KBD_UNKNOWN;
53		53
54	/** Initialize keyboard.	54	/** Initialize keyboard.
55	*	55	*
56	* Traverse OpenFirmware device tree in order to find necessary	56	* Traverse OpenFirmware device tree in order to find necessary
57	* info about the keyboard device.	57	* info about the keyboard device.
58	*	58	*
59	* @param node Keyboard device node.	59	* @param node Keyboard device node.
60	*/	60	*/
61	void kbd_init(ofw_tree_node_t *node)	61	void kbd_init(ofw_tree_node_t *node)
62	{	62	{
63	size_t offset;	63	size_t offset;
64	uintptr_t aligned_addr;	64	uintptr_t aligned_addr;
65	ofw_tree_property_t *prop;	65	ofw_tree_property_t *prop;
66	const char *name;	66	const char *name;
67	cir_t cir;	67	cir_t cir;
68	void *cir_arg;	68	void *cir_arg;
69		69
70	#ifdef CONFIG_NS16550	70	#ifdef CONFIG_NS16550
71	ns16550_t *ns16550;	71	ns16550_t *ns16550;
72	#endif	72	#endif
73	#ifdef CONFIG_Z8530	73	#ifdef CONFIG_Z8530
74	z8530_t *z8530;	74	z8530_t *z8530;
75	#endif	75	#endif
76		76
77	name = ofw_tree_node_name(node);	77	name = ofw_tree_node_name(node);
78		78
79	/*	79	/*
80	* Determine keyboard serial controller type.	80	* Determine keyboard serial controller type.
81	*/	81	*/
82	if (strcmp(name, "zs") == 0)	82	if (strcmp(name, "zs") == 0)
83	kbd_type = KBD_Z8530;	83	kbd_type = KBD_Z8530;
84	else if (strcmp(name, "su") == 0)	84	else if (strcmp(name, "su") == 0)
85	kbd_type = KBD_NS16550;	85	kbd_type = KBD_NS16550;
86		86
87	if (kbd_type == KBD_UNKNOWN) {	87	if (kbd_type == KBD_UNKNOWN) {
88	printf("Unknown keyboard device.\n");	88	printf("Unknown keyboard device.\n");
89	return;	89	return;
90	}	90	}
91		91
92	/*	92	/*
93	* Read 'interrupts' property.	93	* Read 'interrupts' property.
94	*/	94	*/
95	uint32_t interrupts;	95	uint32_t interrupts;
96	prop = ofw_tree_getprop(node, "interrupts");	96	prop = ofw_tree_getprop(node, "interrupts");
97	if ((!prop) \|\| (!prop->value))	97	if ((!prop) \|\| (!prop->value))
98	panic("Cannot find 'interrupt' property.");	98	panic("Cannot find 'interrupt' property.");
99	interrupts = ((uint32_t ) prop->value);	99	interrupts = ((uint32_t ) prop->value);
100		100
101	/*	101	/*
102	* Read 'reg' property.	102	* Read 'reg' property.
103	*/	103	*/
104	prop = ofw_tree_getprop(node, "reg");	104	prop = ofw_tree_getprop(node, "reg");
105	if ((!prop) \|\| (!prop->value))	105	if ((!prop) \|\| (!prop->value))
106	panic("Cannot find 'reg' property.");	106	panic("Cannot find 'reg' property.");
107		107
108	uintptr_t pa;	108	uintptr_t pa;
109	size_t size;	109	size_t size;
110	devno_t devno;	110	devno_t devno;
111	inr_t inr;	111	inr_t inr;
112		112
113	switch (kbd_type) {	113	switch (kbd_type) {
114	case KBD_Z8530:	114	case KBD_Z8530:
115	size = ((ofw_fhc_reg_t *) prop->value)->size;	115	size = ((ofw_fhc_reg_t *) prop->value)->size;
116	if (!ofw_fhc_apply_ranges(node->parent,	116	if (!ofw_fhc_apply_ranges(node->parent,
117	((ofw_fhc_reg_t *) prop->value), &pa)) {	117	((ofw_fhc_reg_t *) prop->value), &pa)) {
118	printf("Failed to determine keyboard address.\n");	118	printf("Failed to determine keyboard address.\n");
119	return;	119	return;
120	}	120	}
121	if (!ofw_fhc_map_interrupt(node->parent,	121	if (!ofw_fhc_map_interrupt(node->parent,
122	((ofw_fhc_reg_t *) prop->value), interrupts, &inr, &cir,	122	((ofw_fhc_reg_t *) prop->value), interrupts, &inr, &cir,
123	&cir_arg)) {	123	&cir_arg)) {
124	printf("Failed to determine keyboard interrupt.\n");	124	printf("Failed to determine keyboard interrupt.\n");
125	return;	125	return;
126	}	126	}
127	break;	127	break;
128		128
129	case KBD_NS16550:	129	case KBD_NS16550:
130	size = ((ofw_ebus_reg_t *) prop->value)->size;	130	size = ((ofw_ebus_reg_t *) prop->value)->size;
131	if (!ofw_ebus_apply_ranges(node->parent,	131	if (!ofw_ebus_apply_ranges(node->parent,
132	((ofw_ebus_reg_t *) prop->value), &pa)) {	132	((ofw_ebus_reg_t *) prop->value), &pa)) {
133	printf("Failed to determine keyboard address.\n");	133	printf("Failed to determine keyboard address.\n");
134	return;	134	return;
135	}	135	}
136	if (!ofw_ebus_map_interrupt(node->parent,	136	if (!ofw_ebus_map_interrupt(node->parent,
137	((ofw_ebus_reg_t *) prop->value), interrupts, &inr, &cir,	137	((ofw_ebus_reg_t *) prop->value), interrupts, &inr, &cir,
138	&cir_arg)) {	138	&cir_arg)) {
139	printf("Failed to determine keyboard interrupt.\n");	139	printf("Failed to determine keyboard interrupt.\n");
140	return;	140	return;
141	};	141	};
142	break;	142	break;
143	default:	143	default:
144	panic("Unexpected keyboard type.");	144	panic("Unexpected keyboard type.");
145	}	145	}
146		146
147	/*	147	/*
148	* We need to pass aligned address to hw_map().	148	* We need to pass aligned address to hw_map().
149	* However, the physical keyboard address can	149	* However, the physical keyboard address can
150	* be pretty much unaligned, depending on the	150	* be pretty much unaligned, depending on the
151	* underlying controller.	151	* underlying controller.
152	*/	152	*/
153	aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);	153	aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
154	offset = pa - aligned_addr;	154	offset = pa - aligned_addr;
155		155
156	switch (kbd_type) {	156	switch (kbd_type) {
157	#ifdef CONFIG_Z8530	157	#ifdef CONFIG_Z8530
158	case KBD_Z8530:	158	case KBD_Z8530:
159	devno = device_assign_devno();	159	devno = device_assign_devno();
160	z8530 = (z8530_t *) hw_map(aligned_addr, offset + size) +	160	z8530 = (z8530_t *) hw_map(aligned_addr, offset + size) +
161	offset;	161	offset;
162	(void) z8530_init(z8530, devno, inr, cir, cir_arg);	162	(void) z8530_init(z8530, devno, inr, cir, cir_arg);
163		163
164	/*	164	/*
165	* This is the necessary evil until the userspace drivers are	165	* This is the necessary evil until the userspace drivers are
166	* entirely self-sufficient.	166	* entirely self-sufficient.
167	*/	167	*/
168	sysinfo_set_item_val("kbd", NULL, true);	168	sysinfo_set_item_val("kbd", NULL, true);
169	sysinfo_set_item_val("kbd.type", NULL, KBD_Z8530);	169	sysinfo_set_item_val("kbd.type", NULL, KBD_Z8530);
170	sysinfo_set_item_val("kbd.devno", NULL, devno);	170	sysinfo_set_item_val("kbd.devno", NULL, devno);
171	sysinfo_set_item_val("kbd.inr", NULL, inr);	171	sysinfo_set_item_val("kbd.inr", NULL, inr);
172	sysinfo_set_item_val("kbd.address.virtual", NULL,	172	sysinfo_set_item_val("kbd.address.kernel", NULL,
173	(uintptr_t) z8530);	173	(uintptr_t) z8530);
174	sysinfo_set_item_val("kbd.address.physical", NULL, pa);	174	sysinfo_set_item_val("kbd.address.physical", NULL, pa);
175	break;	175	break;
176	#endif	176	#endif
177	#ifdef CONFIG_NS16550	177	#ifdef CONFIG_NS16550
178	case KBD_NS16550:	178	case KBD_NS16550:
179	devno = device_assign_devno();	179	devno = device_assign_devno();
180	ns16550 = (ns16550_t *) hw_map(aligned_addr, offset + size) +	180	ns16550 = (ns16550_t *) hw_map(aligned_addr, offset + size) +
181	offset;	181	offset;
182	(void) ns16550_init(ns16550, devno, inr, cir, cir_arg);	182	(void) ns16550_init(ns16550, devno, inr, cir, cir_arg);
183		183
184	/*	184	/*
185	* This is the necessary evil until the userspace driver is	185	* This is the necessary evil until the userspace driver is
186	* entirely self-sufficient.	186	* entirely self-sufficient.
187	*/	187	*/
188	sysinfo_set_item_val("kbd", NULL, true);	188	sysinfo_set_item_val("kbd", NULL, true);
189	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);	189	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
190	sysinfo_set_item_val("kbd.devno", NULL, devno);	190	sysinfo_set_item_val("kbd.devno", NULL, devno);
191	sysinfo_set_item_val("kbd.inr", NULL, inr);	191	sysinfo_set_item_val("kbd.inr", NULL, inr);
192	sysinfo_set_item_val("kbd.address.virtual", NULL,	192	sysinfo_set_item_val("kbd.address.kernel", NULL,
193	(uintptr_t) ns16550);	193	(uintptr_t) ns16550);
194	sysinfo_set_item_val("kbd.address.physical", NULL, pa);	194	sysinfo_set_item_val("kbd.address.physical", NULL, pa);
195	break;	195	break;
196	#endif	196	#endif
197	default:	197	default:
198	printf("Kernel is not compiled with the necessary keyboard "	198	printf("Kernel is not compiled with the necessary keyboard "
199	"driver this machine requires.\n");	199	"driver this machine requires.\n");
200	}	200	}
201	}	201	}
202		202
203	/** @}	203	/** @}
204	*/	204	*/
205		205

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(root)/branches/dynload/kernel/arch/sparc64/src/drivers/kbd.c – Rev 4344 → 4345