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 ",
                   (uintptr_t)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 ",
                   (uintptr_t)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)
{
    uint32_t 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;
    uint32_t 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;
    uint32_t 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;
    uintptr_t 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 1702	Rev 1780
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	29	/** @addtogroup mips32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/drivers/arc.h>	35	#include <arch/drivers/arc.h>
36	#include <arch/mm/page.h>	36	#include <arch/mm/page.h>
37	#include <print.h>	37	#include <print.h>
38	#include <arch.h>	38	#include <arch.h>
39	#include <arch/byteorder.h>	39	#include <arch/byteorder.h>
40	#include <arch/mm/frame.h>	40	#include <arch/mm/frame.h>
41	#include <mm/frame.h>	41	#include <mm/frame.h>
42	#include <interrupt.h>	42	#include <interrupt.h>
43	#include <align.h>	43	#include <align.h>
44	#include <console/console.h>	44	#include <console/console.h>
45	#include <console/kconsole.h>	45	#include <console/kconsole.h>
46	#include <console/cmd.h>	46	#include <console/cmd.h>
47	#include <mm/slab.h>	47	#include <mm/slab.h>
48		48
49	/* 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... */
50	/* Here is the SGI type */	50	/* Here is the SGI type */
51	static char *basetypes[] = {	51	static char *basetypes[] = {
52	"ExceptionBlock",	52	"ExceptionBlock",
53	"SystemParameterBlock",	53	"SystemParameterBlock",
54	"FreeContiguous",	54	"FreeContiguous",
55	"FreeMemory",	55	"FreeMemory",
56	"BadMemory",	56	"BadMemory",
57	"LoadedProgram",	57	"LoadedProgram",
58	"FirmwareTemporary",	58	"FirmwareTemporary",
59	"FirmwarePermanent"	59	"FirmwarePermanent"
60	};	60	};
61		61
62	static char *ctypes[] = {	62	static char *ctypes[] = {
63	"ARC_type",	63	"ARC_type",
64	"CPU_type",	64	"CPU_type",
65	"FPU_type",	65	"FPU_type",
66	"PrimaryICache",	66	"PrimaryICache",
67	"PrimaryDCache",	67	"PrimaryDCache",
68	"SecondaryICache",	68	"SecondaryICache",
69	"SecondaryDCache",	69	"SecondaryDCache",
70	"SecondaryCache",	70	"SecondaryCache",
71	"Memory",	71	"Memory",
72	"EISAAdapter",	72	"EISAAdapter",
73	"TCAdapter",	73	"TCAdapter",
74	"SCSIAdapter",	74	"SCSIAdapter",
75	"DTIAdapter",	75	"DTIAdapter",
76	"MultiFunctionAdapter",	76	"MultiFunctionAdapter",
77	"DiskController",	77	"DiskController",
78	"TapeController",	78	"TapeController",
79	"CDROMController",	79	"CDROMController",
80	"WORMController",	80	"WORMController",
81	"SerialController",	81	"SerialController",
82	"NetworkController",	82	"NetworkController",
83	"DisplayController",	83	"DisplayController",
84	"ParallelController",	84	"ParallelController",
85	"PointerController",	85	"PointerController",
86	"KeyboardController",	86	"KeyboardController",
87	"AudioController",	87	"AudioController",
88	"OtherController",	88	"OtherController",
89	"DiskPeripheral",	89	"DiskPeripheral",
90	"FloppyDiskPeripheral",	90	"FloppyDiskPeripheral",
91	"TapePeripheral",	91	"TapePeripheral",
92	"ModemPeripheral",	92	"ModemPeripheral",
93	"MonitorPeripheral",	93	"MonitorPeripheral",
94	"PrinterPeripheral",	94	"PrinterPeripheral",
95	"PointerPeripheral",	95	"PointerPeripheral",
96	"KeyboardPeripheral",	96	"KeyboardPeripheral",
97	"TerminalPeripheral",	97	"TerminalPeripheral",
98	"OtherPeripheral",	98	"OtherPeripheral",
99	"LinePeripheral",	99	"LinePeripheral",
100	"NetworkPeripheral"	100	"NetworkPeripheral"
101	"OtherPeripheral",	101	"OtherPeripheral",
102	"XTalkAdapter",	102	"XTalkAdapter",
103	"PCIAdapter",	103	"PCIAdapter",
104	"GIOAdapter",	104	"GIOAdapter",
105	"TPUAdapter",	105	"TPUAdapter",
106	"Anonymous"	106	"Anonymous"
107	};	107	};
108		108
109	static arc_sbp sbp = (arc_sbp )PA2KA(0x1000);	109	static arc_sbp sbp = (arc_sbp )PA2KA(0x1000);
110	static arc_func_vector_t *arc_entry;	110	static arc_func_vector_t *arc_entry;
111		111
112		112
113	static void arc_putchar(char ch);	113	static void arc_putchar(char ch);
114		114
115	/** Return true if ARC is available */	115	/** Return true if ARC is available */
116	int arc_enabled(void)	116	int arc_enabled(void)
117	{	117	{
118	return sbp != NULL;	118	return sbp != NULL;
119	}	119	}
120		120
121		121
122	/** Print configuration data that ARC reports about component */	122	/** Print configuration data that ARC reports about component */
123	static void arc_print_confdata(arc_component *c)	123	static void arc_print_confdata(arc_component *c)
124	{	124	{
125	cm_resource_list *configdata;	125	cm_resource_list *configdata;
126	int i;	126	int i;
127		127
128	if (!c->configdatasize)	128	if (!c->configdatasize)
129	return; /* No configuration data */	129	return; /* No configuration data */
130		130
131	configdata = malloc(c->configdatasize, 0);	131	configdata = malloc(c->configdatasize, 0);
132		132
133	if (arc_entry->getconfigurationdata(configdata, c)) {	133	if (arc_entry->getconfigurationdata(configdata, c)) {
134	free(configdata);	134	free(configdata);
135	return;	135	return;
136	}	136	}
137	/* Does not seem to return meaningful data, don't use now */	137	/* Does not seem to return meaningful data, don't use now */
138	free(configdata);	138	free(configdata);
139	return;	139	return;
140		140
141	for (i=0; i < configdata->count; i++) {	141	for (i=0; i < configdata->count; i++) {
142	switch (configdata->descr[i].type) {	142	switch (configdata->descr[i].type) {
143	case CmResourceTypePort:	143	case CmResourceTypePort:
144	printf("Port: %p-size:%d ",	144	printf("Port: %p-size:%d ",
145	(__address)configdata->descr[i].u.port.start,	145	(uintptr_t)configdata->descr[i].u.port.start,
146	configdata->descr[i].u.port.length);	146	configdata->descr[i].u.port.length);
147	break;	147	break;
148	case CmResourceTypeInterrupt:	148	case CmResourceTypeInterrupt:
149	printf("Irq: level(%d) vector(%d) ",	149	printf("Irq: level(%d) vector(%d) ",
150	configdata->descr[i].u.interrupt.level,	150	configdata->descr[i].u.interrupt.level,
151	configdata->descr[i].u.interrupt.vector);	151	configdata->descr[i].u.interrupt.vector);
152	break;	152	break;
153	case CmResourceTypeMemory:	153	case CmResourceTypeMemory:
154	printf("Memory: %p-size:%d ",	154	printf("Memory: %p-size:%d ",
155	(__address)configdata->descr[i].u.port.start,	155	(uintptr_t)configdata->descr[i].u.port.start,
156	configdata->descr[i].u.port.length);	156	configdata->descr[i].u.port.length);
157	break;	157	break;
158	default:	158	default:
159	break;	159	break;
160	}	160	}
161	}	161	}
162		162
163	free(configdata);	163	free(configdata);
164	}	164	}
165		165
166	/** Print information about component */	166	/** Print information about component */
167	static void arc_print_component(arc_component *c)	167	static void arc_print_component(arc_component *c)
168	{	168	{
169	int i;	169	int i;
170		170
171	printf("%s: ",ctypes[c->type]);	171	printf("%s: ",ctypes[c->type]);
172	for (i=0;i < c->identifier_len;i++)	172	for (i=0;i < c->identifier_len;i++)
173	printf("%c",c->identifier[i]);	173	printf("%c",c->identifier[i]);
174		174
175	printf(" ");	175	printf(" ");
176	arc_print_confdata(c);	176	arc_print_confdata(c);
177	printf("\n");	177	printf("\n");
178	}	178	}
179		179
180	/**	180	/**
181	* Read from ARC bios configuration data and print it	181	* Read from ARC bios configuration data and print it
182	*/	182	*/
183	static int cmd_arc_print_devices(cmd_arg_t *argv)	183	static int cmd_arc_print_devices(cmd_arg_t *argv)
184	{	184	{
185	arc_component c,next;	185	arc_component c,next;
186		186
187	c = arc_entry->getchild(NULL);	187	c = arc_entry->getchild(NULL);
188	while (c) {	188	while (c) {
189	arc_print_component(c);	189	arc_print_component(c);
190	next = arc_entry->getchild(c);	190	next = arc_entry->getchild(c);
191	while (!next) {	191	while (!next) {
192	next = arc_entry->getpeer(c);	192	next = arc_entry->getpeer(c);
193	if (!next)	193	if (!next)
194	c = arc_entry->getparent(c);	194	c = arc_entry->getparent(c);
195	if (!c)	195	if (!c)
196	return 0;	196	return 0;
197	}	197	}
198	c = next;	198	c = next;
199	}	199	}
200	return 1;	200	return 1;
201	}	201	}
202	static cmd_info_t devlist_info = {	202	static cmd_info_t devlist_info = {
203	.name = "arcdevlist",	203	.name = "arcdevlist",
204	.description = "Print arc device list",	204	.description = "Print arc device list",
205	.func = cmd_arc_print_devices,	205	.func = cmd_arc_print_devices,
206	.argc = 0	206	.argc = 0
207	};	207	};
208		208
209		209
210	/** Read from arc bios memory map and print it	210	/** Read from arc bios memory map and print it
211	*	211	*
212	*/	212	*/
213	static int cmd_arc_print_memmap(cmd_arg_t *argv)	213	static int cmd_arc_print_memmap(cmd_arg_t *argv)
214	{	214	{
215	arc_memdescriptor_t *desc;	215	arc_memdescriptor_t *desc;
216		216
217	printf("Memory map:\n");	217	printf("Memory map:\n");
218		218
219	desc = arc_entry->getmemorydescriptor(NULL);	219	desc = arc_entry->getmemorydescriptor(NULL);
220	while (desc) {	220	while (desc) {
221	printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],	221	printf("%s: %d(%p) (size: %dKB)\n",basetypes[desc->type],
222	desc->basepage * ARC_FRAME,	222	desc->basepage * ARC_FRAME,
223	desc->basepage * ARC_FRAME,	223	desc->basepage * ARC_FRAME,
224	desc->basecount*ARC_FRAME/1024);	224	desc->basecount*ARC_FRAME/1024);
225	desc = arc_entry->getmemorydescriptor(desc);	225	desc = arc_entry->getmemorydescriptor(desc);
226	}	226	}
227	return 1;	227	return 1;
228	}	228	}
229	static cmd_info_t memmap_info = {	229	static cmd_info_t memmap_info = {
230	.name = "arcmemmap",	230	.name = "arcmemmap",
231	.description = "Print arc memory map",	231	.description = "Print arc memory map",
232	.func = cmd_arc_print_memmap,	232	.func = cmd_arc_print_memmap,
233	.argc = 0	233	.argc = 0
234	};	234	};
235		235
236	/** Print charactor to console */	236	/** Print charactor to console */
237	static void arc_putchar(char ch)	237	static void arc_putchar(char ch)
238	{	238	{
239	__u32 cnt;	239	uint32_t cnt;
240	ipl_t ipl;	240	ipl_t ipl;
241		241
242	/* TODO: Should be spinlock? */	242	/* TODO: Should be spinlock? */
243	ipl = interrupts_disable();	243	ipl = interrupts_disable();
244	arc_entry->write(1, &ch, 1, &cnt);	244	arc_entry->write(1, &ch, 1, &cnt);
245	interrupts_restore(ipl);	245	interrupts_restore(ipl);
246		246
247	}	247	}
248		248
249	static int cmd_reboot(cmd_arg_t *argv)	249	static int cmd_reboot(cmd_arg_t *argv)
250	{	250	{
251	arc_entry->reboot();	251	arc_entry->reboot();
252	return 0;	252	return 0;
253	}	253	}
254	static cmd_info_t reboot_info = {	254	static cmd_info_t reboot_info = {
255	.name = "reboot",	255	.name = "reboot",
256	.description = "Reboot computer",	256	.description = "Reboot computer",
257	.func = cmd_reboot,	257	.func = cmd_reboot,
258	.argc = 0	258	.argc = 0
259	};	259	};
260		260
261	/** Initialize ARC structure	261	/** Initialize ARC structure
262	*	262	*
263	* @return 0 - ARC OK, -1 - ARC does not exist	263	* @return 0 - ARC OK, -1 - ARC does not exist
264	*/	264	*/
265	int arc_init(void)	265	int arc_init(void)
266	{	266	{
267	if (sbp->signature != ARC_MAGIC) {	267	if (sbp->signature != ARC_MAGIC) {
268	sbp = NULL;	268	sbp = NULL;
269	return -1;	269	return -1;
270	}	270	}
271	arc_entry = sbp->firmwarevector;	271	arc_entry = sbp->firmwarevector;
272		272
273	arc_putchar('A');	273	arc_putchar('A');
274	arc_putchar('R');	274	arc_putchar('R');
275	arc_putchar('C');	275	arc_putchar('C');
276	arc_putchar('\n');	276	arc_putchar('\n');
277		277
278	/* Add command for resetting the computer */	278	/* Add command for resetting the computer */
279	cmd_initialize(&reboot_info);	279	cmd_initialize(&reboot_info);
280	cmd_register(&reboot_info);	280	cmd_register(&reboot_info);
281	cmd_initialize(&memmap_info);	281	cmd_initialize(&memmap_info);
282	cmd_register(&memmap_info);	282	cmd_register(&memmap_info);
283	cmd_initialize(&devlist_info);	283	cmd_initialize(&devlist_info);
284	cmd_register(&devlist_info);	284	cmd_register(&devlist_info);
285		285
286	return 0;	286	return 0;
287	}	287	}
288		288
289	static bool kbd_polling_enabled;	289	static bool kbd_polling_enabled;
290	static chardev_t console;	290	static chardev_t console;
291		291
292	/** Try to get character, return character or -1 if not available */	292	/** Try to get character, return character or -1 if not available */
293	static void arc_keyboard_poll(void)	293	static void arc_keyboard_poll(void)
294	{	294	{
295	char ch;	295	char ch;
296	__u32 count;	296	uint32_t count;
297	long result;	297	long result;
298		298
299	if (! kbd_polling_enabled)	299	if (! kbd_polling_enabled)
300	return;	300	return;
301		301
302	if (arc_entry->getreadstatus(0))	302	if (arc_entry->getreadstatus(0))
303	return;	303	return;
304	result = arc_entry->read(0, &ch, 1, &count);	304	result = arc_entry->read(0, &ch, 1, &count);
305	if (result \|\| count!=1) {	305	if (result \|\| count!=1) {
306	return;	306	return;
307	}	307	}
308	if (ch == '\r')	308	if (ch == '\r')
309	ch = '\n';	309	ch = '\n';
310	if (ch == 0x7f)	310	if (ch == 0x7f)
311	ch = '\b';	311	ch = '\b';
312		312
313	chardev_push_character(&console, ch);	313	chardev_push_character(&console, ch);
314	}	314	}
315		315
316	static char arc_read(chardev_t *dev)	316	static char arc_read(chardev_t *dev)
317	{	317	{
318	char ch;	318	char ch;
319	__u32 count;	319	uint32_t count;
320	long result;	320	long result;
321		321
322	result = arc_entry->read(0, &ch, 1, &count);	322	result = arc_entry->read(0, &ch, 1, &count);
323	if (result \|\| count!=1) {	323	if (result \|\| count!=1) {
324	printf("Error reading from ARC keyboard.\n");	324	printf("Error reading from ARC keyboard.\n");
325	cpu_halt();	325	cpu_halt();
326	}	326	}
327	if (ch == '\r')	327	if (ch == '\r')
328	return '\n';	328	return '\n';
329	if (ch == 0x7f)	329	if (ch == 0x7f)
330	return '\b';	330	return '\b';
331	return ch;	331	return ch;
332	}	332	}
333		333
334	static void arc_write(chardev_t *dev, const char ch)	334	static void arc_write(chardev_t *dev, const char ch)
335	{	335	{
336	arc_putchar(ch);	336	arc_putchar(ch);
337	}	337	}
338		338
339	static void arc_enable(chardev_t *dev)	339	static void arc_enable(chardev_t *dev)
340	{	340	{
341	kbd_polling_enabled = true;	341	kbd_polling_enabled = true;
342	}	342	}
343		343
344	static void arc_disable(chardev_t *dev)	344	static void arc_disable(chardev_t *dev)
345	{	345	{
346	kbd_polling_enabled = false;	346	kbd_polling_enabled = false;
347	}	347	}
348		348
349	static chardev_operations_t arc_ops = {	349	static chardev_operations_t arc_ops = {
350	.resume = arc_enable,	350	.resume = arc_enable,
351	.suspend = arc_disable,	351	.suspend = arc_disable,
352	.write = arc_write,	352	.write = arc_write,
353	.read = arc_read	353	.read = arc_read
354	};	354	};
355		355
356	iroutine old_timer;	356	iroutine old_timer;
357	/** Do polling on timer interrupt */	357	/** Do polling on timer interrupt */
358	static void timer_replace(int n, istate_t *istate)	358	static void timer_replace(int n, istate_t *istate)
359	{	359	{
360	arc_keyboard_poll();	360	arc_keyboard_poll();
361	old_timer(n, istate);	361	old_timer(n, istate);
362	arc_keyboard_poll();	362	arc_keyboard_poll();
363	}	363	}
364		364
365	void arc_console(void)	365	void arc_console(void)
366	{	366	{
367	kbd_polling_enabled = true;	367	kbd_polling_enabled = true;
368		368
369	chardev_initialize("arc_console", &console, &arc_ops);	369	chardev_initialize("arc_console", &console, &arc_ops);
370	old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);	370	old_timer = int_register(TIMER_IRQ, "arc_kb_poll", timer_replace);
371	stdin = &console;	371	stdin = &console;
372	stdout = &console;	372	stdout = &console;
373	}	373	}
374		374
375	/* Initialize frame zones from ARC firmware.	375	/* Initialize frame zones from ARC firmware.
376	* In the future we may use even the FirmwareTemporary regions,	376	* In the future we may use even the FirmwareTemporary regions,
377	* currently we use the FreeMemory (what about the LoadedProgram?)	377	* currently we use the FreeMemory (what about the LoadedProgram?)
378	*/	378	*/
379	void arc_frame_init(void)	379	void arc_frame_init(void)
380	{	380	{
381	arc_memdescriptor_t *desc;	381	arc_memdescriptor_t *desc;
382	int total = 0;	382	int total = 0;
383	__address base;	383	uintptr_t base;
384	size_t basesize;	384	size_t basesize;
385		385
386	desc = arc_entry->getmemorydescriptor(NULL);	386	desc = arc_entry->getmemorydescriptor(NULL);
387	while (desc) {	387	while (desc) {
388	if (desc->type == FreeMemory \|\|	388	if (desc->type == FreeMemory \|\|
389	desc->type == FreeContiguous) {	389	desc->type == FreeContiguous) {
390	base = desc->basepage*ARC_FRAME;	390	base = desc->basepage*ARC_FRAME;
391	basesize = desc->basecount*ARC_FRAME;	391	basesize = desc->basecount*ARC_FRAME;
392		392
393	if (base % FRAME_SIZE ) {	393	if (base % FRAME_SIZE ) {
394	basesize -= FRAME_SIZE - (base % FRAME_SIZE);	394	basesize -= FRAME_SIZE - (base % FRAME_SIZE);
395	base = ALIGN_UP(base, FRAME_SIZE);	395	base = ALIGN_UP(base, FRAME_SIZE);
396	}	396	}
397	basesize = ALIGN_DOWN(basesize, FRAME_SIZE);	397	basesize = ALIGN_DOWN(basesize, FRAME_SIZE);
398		398
399	total += basesize;	399	total += basesize;
400		400
401	zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),	401	zone_create(ADDR2PFN(base), SIZE2FRAMES(basesize),
402	ADDR2PFN(base), 0);	402	ADDR2PFN(base), 0);
403	}	403	}
404	desc = arc_entry->getmemorydescriptor(desc);	404	desc = arc_entry->getmemorydescriptor(desc);
405	}	405	}
406		406
407	config.memory_size = total;	407	config.memory_size = total;
408	}	408	}
409		409
410		410
411	/** @}	411	/** @}
412	*/	412	*/
413		413
414		414

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(root)/kernel/trunk/arch/mips32/src/drivers/arc.c – Rev 1702 → 1780