WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/mips32/src/drivers/arc.c


/*
 * Copyright (C) 2005 Ondrej Palkovsky
 * 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 mips32
 * @{
 */
/** @file
 */
 
#include <arch/drivers/arc.h>
#include <arch/mm/page.h>
#include <print.h>
#include <arch.h>
#include <arch/byteorder.h>
#include <arch/mm/frame.h>
#include <mm/frame.h>
#include <interrupt.h>
#include <align.h>
#include <console/console.h>
#include <console/kconsole.h>
#include <console/cmd.h>
#include <mm/slab.h>
 
/* This is a good joke, SGI HAS different types than NT bioses... */
/* Here is the SGI type */
static char *basetypes[] = {
    "ExceptionBlock",
    "SystemParameterBlock",
    "FreeContiguous",
    "FreeMemory",
    "BadMemory",
    "LoadedProgram",
    "FirmwareTemporary",
    "FirmwarePermanent"
};
 
static char *ctypes[] = {
    "ARC_type",
    "CPU_type",
    "FPU_type",
    "PrimaryICache",
    "PrimaryDCache",
    "SecondaryICache",
    "SecondaryDCache",
    "SecondaryCache",
    "Memory",
    "EISAAdapter",
    "TCAdapter",
    "SCSIAdapter",
    "DTIAdapter",
    "MultiFunctionAdapter",
    "DiskController",
    "TapeController",
    "CDROMController",
    "WORMController",
    "SerialController",
    "NetworkController",
    "DisplayController",
    "ParallelController",
    "PointerController",
    "KeyboardController",
    "AudioController",
    "OtherController",
    "DiskPeripheral",
    "FloppyDiskPeripheral",
    "TapePeripheral",
    "ModemPeripheral",
    "MonitorPeripheral",
    "PrinterPeripheral",
    "PointerPeripheral",
    "KeyboardPeripheral",
    "TerminalPeripheral",
    "OtherPeripheral",
    "LinePeripheral",
    "NetworkPeripheral"
    "OtherPeripheral",
    "XTalkAdapter",
    "PCIAdapter",
    "GIOAdapter",
    "TPUAdapter",
    "Anonymous"
};
 
static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000);
static arc_func_vector_t *arc_entry;
 
 
static void arc_putchar(char ch);
 
/** Return true if ARC is available */
int arc_enabled(void)
{
    return sbp != NULL;
}
 
 
/** Print configuration data that ARC reports about component */
static void arc_print_confdata(arc_component *c)
{
    cm_resource_list *configdata;
    int i;
 
    if (!c->configdatasize)
        return; /* No configuration data */
 
    configdata = malloc(c->configdatasize, 0);
 
    if (arc_entry->getconfigurationdata(configdata, c)) {
        free(configdata);
        return;
    }
    /* Does not seem to return meaningful data, don't use now */
    free(configdata);
    return;
   
    for (i=0; i < configdata->count; i++) {
        switch (configdata->descr[i].type) {
        case CmResourceTypePort:
            printf("Port: %p-size:%d ",
                   (__address)configdata->descr[i].u.port.start,
                   configdata->descr[i].u.port.length);
            break;
        case CmResourceTypeInterrupt:
            printf("Irq: level(%d) vector(%d) ",
                   configdata->descr[i].u.interrupt.level,
                   configdata->descr[i].u.interrupt.vector);
            break;
        case CmResourceTypeMemory:
            printf("Memory: %p-size:%d ",
                   (__address)configdata->descr[i].u.port.start,
                   configdata->descr[i].u.port.length);
            break;
        default:
            break;
        }
    }
 
    free(configdata);
}
 
/** Print information about component */
static void arc_print_component(arc_component *c)
{
    int i;
 
    printf("%s: ",ctypes[c->type]);
    for (i=0;i < c->identifier_len;i++)
        printf("%c",c->identifier[i]);
 
    printf(" ");
    arc_print_confdata(c);
    printf("\n");
}
 
/**
 * Read from ARC bios configuration data and print it
 */
static int cmd_arc_print_devices(cmd_arg_t *argv)
{
    arc_component *c,*next;
 
    c = arc_entry->getchild(NULL);
    while (c) {
        arc_print_component(c);
        next = arc_entry->getchild(c);
        while (!next) {
            next = arc_entry->getpeer(c);
            if (!next)
                c = arc_entry->getparent(c);
            if (!c)
                return 0;
        }
        c = next;
    }
    return 1;
}
static cmd_info_t devlist_info = {
    .name = "arcdevlist",
    .description = "Print arc device list",
    .func = cmd_arc_print_devices,
    .argc = 0
};
 
 
/** Read from arc bios memory map and print it
 *
 */
static int cmd_arc_print_memmap(cmd_arg_t *argv)
{
    arc_memdescriptor_t *desc;
 
    printf("Memory map:\n");
 
    desc = arc_entry->getmemorydescriptor(NULL);
    while (desc) {
        printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],
               desc->basepage * ARC_FRAME,
               desc->basepage * ARC_FRAME,
               desc->basecount*ARC_FRAME/1024);
        desc = arc_entry->getmemorydescriptor(desc);
    }
    return 1;
}
static cmd_info_t memmap_info = {
    .name = "arcmemmap",
    .description = "Print arc memory map",
    .func = cmd_arc_print_memmap,
    .argc = 0
};
 
/** Print charactor to console */
static void arc_putchar(char ch)
{
    __u32 cnt;
    ipl_t ipl;
 
    /* TODO: Should be spinlock? */
    ipl = interrupts_disable();
    arc_entry->write(1, &ch, 1, &cnt);
    interrupts_restore(ipl);
   
}
 
static int cmd_reboot(cmd_arg_t *argv)
{
    arc_entry->reboot();
    return 0;
}
static cmd_info_t reboot_info = {
    .name = "reboot",
    .description = "Reboot computer",
    .func = cmd_reboot,
    .argc = 0
};
 
/** Initialize ARC structure
 *
 * @return 0 - ARC OK, -1 - ARC does not exist
 */
int arc_init(void)
{
    if (sbp->signature != ARC_MAGIC) {
        sbp = NULL;
        return -1;
    }
    arc_entry = sbp->firmwarevector;
 
    arc_putchar('A');
    arc_putchar('R');
    arc_putchar('C');
    arc_putchar('\n');
 
    /* Add command for resetting the computer */
    cmd_initialize(&reboot_info);
    cmd_register(&reboot_info);
    cmd_initialize(&memmap_info);
    cmd_register(&memmap_info);
    cmd_initialize(&devlist_info);
    cmd_register(&devlist_info);
 
    return 0;
}
 
static bool kbd_polling_enabled;
static chardev_t console;
 
/** Try to get character, return character or -1 if not available */
static void arc_keyboard_poll(void)
{
    char ch;
    __u32 count;
    long result;
   
    if (! kbd_polling_enabled)
        return;
 
    if (arc_entry->getreadstatus(0))
        return;
    result = arc_entry->read(0, &ch, 1, &count);
    if (result || count!=1) {
        return;
    }
    if (ch == '\r')
        ch = '\n';
    if (ch == 0x7f)
        ch = '\b';
   
    chardev_push_character(&console, ch);
}
 
static char arc_read(chardev_t *dev)
{
    char ch;
    __u32 count;
    long result;
 
    result = arc_entry->read(0, &ch, 1, &count);
    if (result || count!=1) {
        printf("Error reading from ARC keyboard.\n");
        cpu_halt();
    }
    if (ch == '\r')
        return '\n';
    if (ch == 0x7f)
        return '\b';
    return ch;
}
 
static void arc_write(chardev_t *dev, const char ch)
{
    arc_putchar(ch);
}
 
static void arc_enable(chardev_t *dev)
{
    kbd_polling_enabled = true;
}
 
static void arc_disable(chardev_t *dev)
{
    kbd_polling_enabled = false;
}
 
static chardev_operations_t arc_ops = {
    .resume = arc_enable,
    .suspend = arc_disable,
    .write = arc_write,
    .read = arc_read
};
 
iroutine old_timer;
/** Do polling on timer interrupt */
static void timer_replace(int n, istate_t *istate)
{
    arc_keyboard_poll();
    old_timer(n, istate);
    arc_keyboard_poll();
}
 
void arc_console(void)
{
    kbd_polling_enabled = true;
   
    chardev_initialize("arc_console", &console, &arc_ops);
    old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);
    stdin = &console;
    stdout = &console;
}
 
/* Initialize frame zones from ARC firmware.
 * In the future we may use even the FirmwareTemporary regions,
 * currently we use the FreeMemory (what about the LoadedProgram?)
 */
void arc_frame_init(void)
{
    arc_memdescriptor_t *desc;
    int total = 0;
    __address base;
    size_t basesize;
 
    desc = arc_entry->getmemorydescriptor(NULL);
    while (desc) {
        if (desc->type == FreeMemory ||
            desc->type == FreeContiguous) {
            base = desc->basepage*ARC_FRAME;
            basesize = desc->basecount*ARC_FRAME;
 
            if (base % FRAME_SIZE ) {
                basesize -= FRAME_SIZE - (base % FRAME_SIZE);
                base = ALIGN_UP(base, FRAME_SIZE);
            }
            basesize = ALIGN_DOWN(basesize, FRAME_SIZE);
 
            total += basesize;
           
            zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),
                    ADDR2PFN(base), 0);
        }
        desc = arc_entry->getmemorydescriptor(desc);
    }
 
    config.memory_size = total;
}
 
 
 /** @}
 */
 
 

Rev 1221	Rev 1702
1	/*	1	/*
2	* Copyright (C) 2005 Ondrej Palkovsky	2	* Copyright (C) 2005 Ondrej Palkovsky
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 mips32
-		30	* @{
-		31	*/
-		32	/** @file
-		33	*/
-		34
29	#include <arch/drivers/arc.h>	35	#include <arch/drivers/arc.h>
30	#include <arch/mm/page.h>	36	#include <arch/mm/page.h>
31	#include <print.h>	37	#include <print.h>
32	#include <arch.h>	38	#include <arch.h>
33	#include <arch/byteorder.h>	39	#include <arch/byteorder.h>
34	#include <arch/mm/frame.h>	40	#include <arch/mm/frame.h>
35	#include <mm/frame.h>	41	#include <mm/frame.h>
36	#include <interrupt.h>	42	#include <interrupt.h>
37	#include <align.h>	43	#include <align.h>
38	#include <console/console.h>	44	#include <console/console.h>
39	#include <console/kconsole.h>	45	#include <console/kconsole.h>
40	#include <console/cmd.h>	46	#include <console/cmd.h>
41	#include <mm/slab.h>	47	#include <mm/slab.h>
42		48
43	/* This is a good joke, SGI HAS different types than NT bioses... */	49	/* This is a good joke, SGI HAS different types than NT bioses... */
44	/* Here is the SGI type */	50	/* Here is the SGI type */
45	static char *basetypes[] = {	51	static char *basetypes[] = {
46	"ExceptionBlock",	52	"ExceptionBlock",
47	"SystemParameterBlock",	53	"SystemParameterBlock",
48	"FreeContiguous",	54	"FreeContiguous",
49	"FreeMemory",	55	"FreeMemory",
50	"BadMemory",	56	"BadMemory",
51	"LoadedProgram",	57	"LoadedProgram",
52	"FirmwareTemporary",	58	"FirmwareTemporary",
53	"FirmwarePermanent"	59	"FirmwarePermanent"
54	};	60	};
55		61
56	static char *ctypes[] = {	62	static char *ctypes[] = {
57	"ARC_type",	63	"ARC_type",
58	"CPU_type",	64	"CPU_type",
59	"FPU_type",	65	"FPU_type",
60	"PrimaryICache",	66	"PrimaryICache",
61	"PrimaryDCache",	67	"PrimaryDCache",
62	"SecondaryICache",	68	"SecondaryICache",
63	"SecondaryDCache",	69	"SecondaryDCache",
64	"SecondaryCache",	70	"SecondaryCache",
65	"Memory",	71	"Memory",
66	"EISAAdapter",	72	"EISAAdapter",
67	"TCAdapter",	73	"TCAdapter",
68	"SCSIAdapter",	74	"SCSIAdapter",
69	"DTIAdapter",	75	"DTIAdapter",
70	"MultiFunctionAdapter",	76	"MultiFunctionAdapter",
71	"DiskController",	77	"DiskController",
72	"TapeController",	78	"TapeController",
73	"CDROMController",	79	"CDROMController",
74	"WORMController",	80	"WORMController",
75	"SerialController",	81	"SerialController",
76	"NetworkController",	82	"NetworkController",
77	"DisplayController",	83	"DisplayController",
78	"ParallelController",	84	"ParallelController",
79	"PointerController",	85	"PointerController",
80	"KeyboardController",	86	"KeyboardController",
81	"AudioController",	87	"AudioController",
82	"OtherController",	88	"OtherController",
83	"DiskPeripheral",	89	"DiskPeripheral",
84	"FloppyDiskPeripheral",	90	"FloppyDiskPeripheral",
85	"TapePeripheral",	91	"TapePeripheral",
86	"ModemPeripheral",	92	"ModemPeripheral",
87	"MonitorPeripheral",	93	"MonitorPeripheral",
88	"PrinterPeripheral",	94	"PrinterPeripheral",
89	"PointerPeripheral",	95	"PointerPeripheral",
90	"KeyboardPeripheral",	96	"KeyboardPeripheral",
91	"TerminalPeripheral",	97	"TerminalPeripheral",
92	"OtherPeripheral",	98	"OtherPeripheral",
93	"LinePeripheral",	99	"LinePeripheral",
94	"NetworkPeripheral"	100	"NetworkPeripheral"
95	"OtherPeripheral",	101	"OtherPeripheral",
96	"XTalkAdapter",	102	"XTalkAdapter",
97	"PCIAdapter",	103	"PCIAdapter",
98	"GIOAdapter",	104	"GIOAdapter",
99	"TPUAdapter",	105	"TPUAdapter",
100	"Anonymous"	106	"Anonymous"
101	};	107	};
102		108
103	static arc_sbp sbp = (arc_sbp )PA2KA(0x1000);	109	static arc_sbp sbp = (arc_sbp )PA2KA(0x1000);
104	static arc_func_vector_t *arc_entry;	110	static arc_func_vector_t *arc_entry;
105		111
106		112
107	static void arc_putchar(char ch);	113	static void arc_putchar(char ch);
108		114
109	/** Return true if ARC is available */	115	/** Return true if ARC is available */
110	int arc_enabled(void)	116	int arc_enabled(void)
111	{	117	{
112	return sbp != NULL;	118	return sbp != NULL;
113	}	119	}
114		120
115		121
116	/** Print configuration data that ARC reports about component */	122	/** Print configuration data that ARC reports about component */
117	static void arc_print_confdata(arc_component *c)	123	static void arc_print_confdata(arc_component *c)
118	{	124	{
119	cm_resource_list *configdata;	125	cm_resource_list *configdata;
120	int i;	126	int i;
121		127
122	if (!c->configdatasize)	128	if (!c->configdatasize)
123	return; /* No configuration data */	129	return; /* No configuration data */
124		130
125	configdata = malloc(c->configdatasize, 0);	131	configdata = malloc(c->configdatasize, 0);
126		132
127	if (arc_entry->getconfigurationdata(configdata, c)) {	133	if (arc_entry->getconfigurationdata(configdata, c)) {
128	free(configdata);	134	free(configdata);
129	return;	135	return;
130	}	136	}
131	/* Does not seem to return meaningful data, don't use now */	137	/* Does not seem to return meaningful data, don't use now */
132	free(configdata);	138	free(configdata);
133	return;	139	return;
134		140
135	for (i=0; i < configdata->count; i++) {	141	for (i=0; i < configdata->count; i++) {
136	switch (configdata->descr[i].type) {	142	switch (configdata->descr[i].type) {
137	case CmResourceTypePort:	143	case CmResourceTypePort:
138	printf("Port: %p-size:%d ",	144	printf("Port: %p-size:%d ",
139	(__address)configdata->descr[i].u.port.start,	145	(__address)configdata->descr[i].u.port.start,
140	configdata->descr[i].u.port.length);	146	configdata->descr[i].u.port.length);
141	break;	147	break;
142	case CmResourceTypeInterrupt:	148	case CmResourceTypeInterrupt:
143	printf("Irq: level(%d) vector(%d) ",	149	printf("Irq: level(%d) vector(%d) ",
144	configdata->descr[i].u.interrupt.level,	150	configdata->descr[i].u.interrupt.level,
145	configdata->descr[i].u.interrupt.vector);	151	configdata->descr[i].u.interrupt.vector);
146	break;	152	break;
147	case CmResourceTypeMemory:	153	case CmResourceTypeMemory:
148	printf("Memory: %p-size:%d ",	154	printf("Memory: %p-size:%d ",
149	(__address)configdata->descr[i].u.port.start,	155	(__address)configdata->descr[i].u.port.start,
150	configdata->descr[i].u.port.length);	156	configdata->descr[i].u.port.length);
151	break;	157	break;
152	default:	158	default:
153	break;	159	break;
154	}	160	}
155	}	161	}
156		162
157	free(configdata);	163	free(configdata);
158	}	164	}
159		165
160	/** Print information about component */	166	/** Print information about component */
161	static void arc_print_component(arc_component *c)	167	static void arc_print_component(arc_component *c)
162	{	168	{
163	int i;	169	int i;
164		170
165	printf("%s: ",ctypes[c->type]);	171	printf("%s: ",ctypes[c->type]);
166	for (i=0;i < c->identifier_len;i++)	172	for (i=0;i < c->identifier_len;i++)
167	printf("%c",c->identifier[i]);	173	printf("%c",c->identifier[i]);
168		174
169	printf(" ");	175	printf(" ");
170	arc_print_confdata(c);	176	arc_print_confdata(c);
171	printf("\n");	177	printf("\n");
172	}	178	}
173		179
174	/**	180	/**
175	* Read from ARC bios configuration data and print it	181	* Read from ARC bios configuration data and print it
176	*/	182	*/
177	static int cmd_arc_print_devices(cmd_arg_t *argv)	183	static int cmd_arc_print_devices(cmd_arg_t *argv)
178	{	184	{
179	arc_component c,next;	185	arc_component c,next;
180		186
181	c = arc_entry->getchild(NULL);	187	c = arc_entry->getchild(NULL);
182	while (c) {	188	while (c) {
183	arc_print_component(c);	189	arc_print_component(c);
184	next = arc_entry->getchild(c);	190	next = arc_entry->getchild(c);
185	while (!next) {	191	while (!next) {
186	next = arc_entry->getpeer(c);	192	next = arc_entry->getpeer(c);
187	if (!next)	193	if (!next)
188	c = arc_entry->getparent(c);	194	c = arc_entry->getparent(c);
189	if (!c)	195	if (!c)
190	return 0;	196	return 0;
191	}	197	}
192	c = next;	198	c = next;
193	}	199	}
194	return 1;	200	return 1;
195	}	201	}
196	static cmd_info_t devlist_info = {	202	static cmd_info_t devlist_info = {
197	.name = "arcdevlist",	203	.name = "arcdevlist",
198	.description = "Print arc device list",	204	.description = "Print arc device list",
199	.func = cmd_arc_print_devices,	205	.func = cmd_arc_print_devices,
200	.argc = 0	206	.argc = 0
201	};	207	};
202		208
203		209
204	/** Read from arc bios memory map and print it	210	/** Read from arc bios memory map and print it
205	*	211	*
206	*/	212	*/
207	static int cmd_arc_print_memmap(cmd_arg_t *argv)	213	static int cmd_arc_print_memmap(cmd_arg_t *argv)
208	{	214	{
209	arc_memdescriptor_t *desc;	215	arc_memdescriptor_t *desc;
210		216
211	printf("Memory map:\n");	217	printf("Memory map:\n");
212		218
213	desc = arc_entry->getmemorydescriptor(NULL);	219	desc = arc_entry->getmemorydescriptor(NULL);
214	while (desc) {	220	while (desc) {
215	printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],	221	printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],
216	desc->basepage * ARC_FRAME,	222	desc->basepage * ARC_FRAME,
217	desc->basepage * ARC_FRAME,	223	desc->basepage * ARC_FRAME,
218	desc->basecount*ARC_FRAME/1024);	224	desc->basecount*ARC_FRAME/1024);
219	desc = arc_entry->getmemorydescriptor(desc);	225	desc = arc_entry->getmemorydescriptor(desc);
220	}	226	}
221	return 1;	227	return 1;
222	}	228	}
223	static cmd_info_t memmap_info = {	229	static cmd_info_t memmap_info = {
224	.name = "arcmemmap",	230	.name = "arcmemmap",
225	.description = "Print arc memory map",	231	.description = "Print arc memory map",
226	.func = cmd_arc_print_memmap,	232	.func = cmd_arc_print_memmap,
227	.argc = 0	233	.argc = 0
228	};	234	};
229		235
230	/** Print charactor to console */	236	/** Print charactor to console */
231	static void arc_putchar(char ch)	237	static void arc_putchar(char ch)
232	{	238	{
233	__u32 cnt;	239	__u32 cnt;
234	ipl_t ipl;	240	ipl_t ipl;
235		241
236	/* TODO: Should be spinlock? */	242	/* TODO: Should be spinlock? */
237	ipl = interrupts_disable();	243	ipl = interrupts_disable();
238	arc_entry->write(1, &ch, 1, &cnt);	244	arc_entry->write(1, &ch, 1, &cnt);
239	interrupts_restore(ipl);	245	interrupts_restore(ipl);
240		246
241	}	247	}
242		248
243	static int cmd_reboot(cmd_arg_t *argv)	249	static int cmd_reboot(cmd_arg_t *argv)
244	{	250	{
245	arc_entry->reboot();	251	arc_entry->reboot();
246	return 0;	252	return 0;
247	}	253	}
248	static cmd_info_t reboot_info = {	254	static cmd_info_t reboot_info = {
249	.name = "reboot",	255	.name = "reboot",
250	.description = "Reboot computer",	256	.description = "Reboot computer",
251	.func = cmd_reboot,	257	.func = cmd_reboot,
252	.argc = 0	258	.argc = 0
253	};	259	};
254		260
255	/** Initialize ARC structure	261	/** Initialize ARC structure
256	*	262	*
257	* @return 0 - ARC OK, -1 - ARC does not exist	263	* @return 0 - ARC OK, -1 - ARC does not exist
258	*/	264	*/
259	int arc_init(void)	265	int arc_init(void)
260	{	266	{
261	if (sbp->signature != ARC_MAGIC) {	267	if (sbp->signature != ARC_MAGIC) {
262	sbp = NULL;	268	sbp = NULL;
263	return -1;	269	return -1;
264	}	270	}
265	arc_entry = sbp->firmwarevector;	271	arc_entry = sbp->firmwarevector;
266		272
267	arc_putchar('A');	273	arc_putchar('A');
268	arc_putchar('R');	274	arc_putchar('R');
269	arc_putchar('C');	275	arc_putchar('C');
270	arc_putchar('\n');	276	arc_putchar('\n');
271		277
272	/* Add command for resetting the computer */	278	/* Add command for resetting the computer */
273	cmd_initialize(&reboot_info);	279	cmd_initialize(&reboot_info);
274	cmd_register(&reboot_info);	280	cmd_register(&reboot_info);
275	cmd_initialize(&memmap_info);	281	cmd_initialize(&memmap_info);
276	cmd_register(&memmap_info);	282	cmd_register(&memmap_info);
277	cmd_initialize(&devlist_info);	283	cmd_initialize(&devlist_info);
278	cmd_register(&devlist_info);	284	cmd_register(&devlist_info);
279		285
280	return 0;	286	return 0;
281	}	287	}
282		288
283	static bool kbd_polling_enabled;	289	static bool kbd_polling_enabled;
284	static chardev_t console;	290	static chardev_t console;
285		291
286	/** Try to get character, return character or -1 if not available */	292	/** Try to get character, return character or -1 if not available */
287	static void arc_keyboard_poll(void)	293	static void arc_keyboard_poll(void)
288	{	294	{
289	char ch;	295	char ch;
290	__u32 count;	296	__u32 count;
291	long result;	297	long result;
292		298
293	if (! kbd_polling_enabled)	299	if (! kbd_polling_enabled)
294	return;	300	return;
295		301
296	if (arc_entry->getreadstatus(0))	302	if (arc_entry->getreadstatus(0))
297	return;	303	return;
298	result = arc_entry->read(0, &ch, 1, &count);	304	result = arc_entry->read(0, &ch, 1, &count);
299	if (result \|\| count!=1) {	305	if (result \|\| count!=1) {
300	return;	306	return;
301	}	307	}
302	if (ch == '\r')	308	if (ch == '\r')
303	ch = '\n';	309	ch = '\n';
304	if (ch == 0x7f)	310	if (ch == 0x7f)
305	ch = '\b';	311	ch = '\b';
306		312
307	chardev_push_character(&console, ch);	313	chardev_push_character(&console, ch);
308	}	314	}
309		315
310	static char arc_read(chardev_t *dev)	316	static char arc_read(chardev_t *dev)
311	{	317	{
312	char ch;	318	char ch;
313	__u32 count;	319	__u32 count;
314	long result;	320	long result;
315		321
316	result = arc_entry->read(0, &ch, 1, &count);	322	result = arc_entry->read(0, &ch, 1, &count);
317	if (result \|\| count!=1) {	323	if (result \|\| count!=1) {
318	printf("Error reading from ARC keyboard.\n");	324	printf("Error reading from ARC keyboard.\n");
319	cpu_halt();	325	cpu_halt();
320	}	326	}
321	if (ch == '\r')	327	if (ch == '\r')
322	return '\n';	328	return '\n';
323	if (ch == 0x7f)	329	if (ch == 0x7f)
324	return '\b';	330	return '\b';
325	return ch;	331	return ch;
326	}	332	}
327		333
328	static void arc_write(chardev_t *dev, const char ch)	334	static void arc_write(chardev_t *dev, const char ch)
329	{	335	{
330	arc_putchar(ch);	336	arc_putchar(ch);
331	}	337	}
332		338
333	static void arc_enable(chardev_t *dev)	339	static void arc_enable(chardev_t *dev)
334	{	340	{
335	kbd_polling_enabled = true;	341	kbd_polling_enabled = true;
336	}	342	}
337		343
338	static void arc_disable(chardev_t *dev)	344	static void arc_disable(chardev_t *dev)
339	{	345	{
340	kbd_polling_enabled = false;	346	kbd_polling_enabled = false;
341	}	347	}
342		348
343	static chardev_operations_t arc_ops = {	349	static chardev_operations_t arc_ops = {
344	.resume = arc_enable,	350	.resume = arc_enable,
345	.suspend = arc_disable,	351	.suspend = arc_disable,
346	.write = arc_write,	352	.write = arc_write,
347	.read = arc_read	353	.read = arc_read
348	};	354	};
349		355
350	iroutine old_timer;	356	iroutine old_timer;
351	/** Do polling on timer interrupt */	357	/** Do polling on timer interrupt */
352	static void timer_replace(int n, istate_t *istate)	358	static void timer_replace(int n, istate_t *istate)
353	{	359	{
354	arc_keyboard_poll();	360	arc_keyboard_poll();
355	old_timer(n, istate);	361	old_timer(n, istate);
356	arc_keyboard_poll();	362	arc_keyboard_poll();
357	}	363	}
358		364
359	void arc_console(void)	365	void arc_console(void)
360	{	366	{
361	kbd_polling_enabled = true;	367	kbd_polling_enabled = true;
362		368
363	chardev_initialize("arc_console", &console, &arc_ops);	369	chardev_initialize("arc_console", &console, &arc_ops);
364	old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);	370	old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);
365	stdin = &console;	371	stdin = &console;
366	stdout = &console;	372	stdout = &console;
367	}	373	}
368		374
369	/* Initialize frame zones from ARC firmware.	375	/* Initialize frame zones from ARC firmware.
370	* In the future we may use even the FirmwareTemporary regions,	376	* In the future we may use even the FirmwareTemporary regions,
371	* currently we use the FreeMemory (what about the LoadedProgram?)	377	* currently we use the FreeMemory (what about the LoadedProgram?)
372	*/	378	*/
373	void arc_frame_init(void)	379	void arc_frame_init(void)
374	{	380	{
375	arc_memdescriptor_t *desc;	381	arc_memdescriptor_t *desc;
376	int total = 0;	382	int total = 0;
377	__address base;	383	__address base;
378	size_t basesize;	384	size_t basesize;
379		385
380	desc = arc_entry->getmemorydescriptor(NULL);	386	desc = arc_entry->getmemorydescriptor(NULL);
381	while (desc) {	387	while (desc) {
382	if (desc->type == FreeMemory \|\|	388	if (desc->type == FreeMemory \|\|
383	desc->type == FreeContiguous) {	389	desc->type == FreeContiguous) {
384	base = desc->basepage*ARC_FRAME;	390	base = desc->basepage*ARC_FRAME;
385	basesize = desc->basecount*ARC_FRAME;	391	basesize = desc->basecount*ARC_FRAME;
386		392
387	if (base % FRAME_SIZE ) {	393	if (base % FRAME_SIZE ) {
388	basesize -= FRAME_SIZE - (base % FRAME_SIZE);	394	basesize -= FRAME_SIZE - (base % FRAME_SIZE);
389	base = ALIGN_UP(base, FRAME_SIZE);	395	base = ALIGN_UP(base, FRAME_SIZE);
390	}	396	}
391	basesize = ALIGN_DOWN(basesize, FRAME_SIZE);	397	basesize = ALIGN_DOWN(basesize, FRAME_SIZE);
392		398
393	total += basesize;	399	total += basesize;
394		400
395	zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),	401	zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),
396	ADDR2PFN(base), 0);	402	ADDR2PFN(base), 0);
397	}	403	}
398	desc = arc_entry->getmemorydescriptor(desc);	404	desc = arc_entry->getmemorydescriptor(desc);
399	}	405	}
400		406
401	config.memory_size = total;	407	config.memory_size = total;
402	}	408	}
403		409
-		410
-		411	/** @}
-		412	*/
-		413
404		414

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(root)/kernel/trunk/arch/mips32/src/drivers/arc.c – Rev 1221 → 1702