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

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(root)/kernel/trunk/arch/mips32/src/drivers/arc.c @ 1702 – Rev 958 → 1221