cmos return current date - current irq priority in PIC (L4 Pistachio support) - help fixes
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@557 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
parent
6986f88c3f
commit
6e44ba7fa2
203
vl.c
203
vl.c
@ -525,44 +525,15 @@ void cmos_ioport_write(CPUState *env, uint32_t addr, uint32_t data)
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t cmos_ioport_read(CPUState *env, uint32_t addr)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (addr == 0x70) {
|
||||
return 0xff;
|
||||
} else {
|
||||
ret = cmos_data[cmos_index];
|
||||
switch(cmos_index) {
|
||||
case RTC_REG_A:
|
||||
/* toggle update-in-progress bit for Linux (same hack as
|
||||
plex86) */
|
||||
cmos_data[RTC_REG_A] ^= 0x80;
|
||||
break;
|
||||
case RTC_REG_C:
|
||||
pic_set_irq(8, 0);
|
||||
cmos_data[RTC_REG_C] = 0x00;
|
||||
break;
|
||||
}
|
||||
#ifdef DEBUG_CMOS
|
||||
printf("cmos: read index=0x%02x val=0x%02x\n",
|
||||
cmos_index, ret);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static inline int to_bcd(int a)
|
||||
{
|
||||
return ((a / 10) << 4) | (a % 10);
|
||||
}
|
||||
|
||||
void cmos_init(void)
|
||||
static void cmos_update_time(void)
|
||||
{
|
||||
struct tm *tm;
|
||||
time_t ti;
|
||||
int val;
|
||||
|
||||
ti = time(NULL);
|
||||
tm = gmtime(&ti);
|
||||
@ -573,6 +544,56 @@ void cmos_init(void)
|
||||
cmos_data[RTC_DAY_OF_MONTH] = to_bcd(tm->tm_mday);
|
||||
cmos_data[RTC_MONTH] = to_bcd(tm->tm_mon + 1);
|
||||
cmos_data[RTC_YEAR] = to_bcd(tm->tm_year % 100);
|
||||
cmos_data[REG_IBM_CENTURY_BYTE] = to_bcd((tm->tm_year / 100) + 19);
|
||||
}
|
||||
|
||||
uint32_t cmos_ioport_read(CPUState *env, uint32_t addr)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (addr == 0x70) {
|
||||
return 0xff;
|
||||
} else {
|
||||
switch(cmos_index) {
|
||||
case RTC_SECONDS:
|
||||
case RTC_MINUTES:
|
||||
case RTC_HOURS:
|
||||
case RTC_DAY_OF_WEEK:
|
||||
case RTC_DAY_OF_MONTH:
|
||||
case RTC_MONTH:
|
||||
case RTC_YEAR:
|
||||
case REG_IBM_CENTURY_BYTE:
|
||||
cmos_update_time();
|
||||
ret = cmos_data[cmos_index];
|
||||
break;
|
||||
case RTC_REG_A:
|
||||
ret = cmos_data[cmos_index];
|
||||
/* toggle update-in-progress bit for Linux (same hack as
|
||||
plex86) */
|
||||
cmos_data[RTC_REG_A] ^= 0x80;
|
||||
break;
|
||||
case RTC_REG_C:
|
||||
ret = cmos_data[cmos_index];
|
||||
pic_set_irq(8, 0);
|
||||
cmos_data[RTC_REG_C] = 0x00;
|
||||
break;
|
||||
default:
|
||||
ret = cmos_data[cmos_index];
|
||||
break;
|
||||
}
|
||||
#ifdef DEBUG_CMOS
|
||||
printf("cmos: read index=0x%02x val=0x%02x\n",
|
||||
cmos_index, ret);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
void cmos_init(void)
|
||||
{
|
||||
int val;
|
||||
|
||||
cmos_update_time();
|
||||
|
||||
cmos_data[RTC_REG_A] = 0x26;
|
||||
cmos_data[RTC_REG_B] = 0x02;
|
||||
@ -580,7 +601,6 @@ void cmos_init(void)
|
||||
cmos_data[RTC_REG_D] = 0x80;
|
||||
|
||||
/* various important CMOS locations needed by PC/Bochs bios */
|
||||
cmos_data[REG_IBM_CENTURY_BYTE] = to_bcd((tm->tm_year / 100) + 19);
|
||||
|
||||
cmos_data[REG_EQUIPMENT_BYTE] = 0x02; /* FPU is there */
|
||||
cmos_data[REG_EQUIPMENT_BYTE] |= 0x04; /* PS/2 mouse installed */
|
||||
@ -676,14 +696,15 @@ typedef struct PicState {
|
||||
uint8_t irr; /* interrupt request register */
|
||||
uint8_t imr; /* interrupt mask register */
|
||||
uint8_t isr; /* interrupt service register */
|
||||
uint8_t priority_add; /* used to compute irq priority */
|
||||
uint8_t priority_add; /* highest irq priority */
|
||||
uint8_t irq_base;
|
||||
uint8_t read_reg_select;
|
||||
uint8_t poll;
|
||||
uint8_t special_mask;
|
||||
uint8_t init_state;
|
||||
uint8_t auto_eoi;
|
||||
uint8_t rotate_on_autoeoi;
|
||||
uint8_t rotate_on_auto_eoi;
|
||||
uint8_t special_fully_nested_mode;
|
||||
uint8_t init4; /* true if 4 byte init */
|
||||
} PicState;
|
||||
|
||||
@ -705,14 +726,16 @@ static inline void pic_set_irq1(PicState *s, int irq, int level)
|
||||
}
|
||||
}
|
||||
|
||||
/* return the highest priority found in mask (highest = smallest
|
||||
number). Return 8 if no irq */
|
||||
static inline int get_priority(PicState *s, int mask)
|
||||
{
|
||||
int priority;
|
||||
if (mask == 0)
|
||||
return -1;
|
||||
priority = 7;
|
||||
return 8;
|
||||
priority = 0;
|
||||
while ((mask & (1 << ((priority + s->priority_add) & 7))) == 0)
|
||||
priority--;
|
||||
priority++;
|
||||
return priority;
|
||||
}
|
||||
|
||||
@ -723,13 +746,18 @@ static int pic_get_irq(PicState *s)
|
||||
|
||||
mask = s->irr & ~s->imr;
|
||||
priority = get_priority(s, mask);
|
||||
if (priority < 0)
|
||||
if (priority == 8)
|
||||
return -1;
|
||||
/* compute current priority */
|
||||
cur_priority = get_priority(s, s->isr);
|
||||
if (priority > cur_priority) {
|
||||
/* compute current priority. If special fully nested mode on the
|
||||
master, the IRQ coming from the slave is not taken into account
|
||||
for the priority computation. */
|
||||
mask = s->isr;
|
||||
if (s->special_fully_nested_mode && s == &pics[0])
|
||||
mask &= ~(1 << 2);
|
||||
cur_priority = get_priority(s, mask);
|
||||
if (priority < cur_priority) {
|
||||
/* higher priority found: an irq should be generated */
|
||||
return priority;
|
||||
return (priority + s->priority_add) & 7;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
@ -758,6 +786,17 @@ void pic_update_irq(void)
|
||||
/* from master pic */
|
||||
pic_irq_requested = irq;
|
||||
}
|
||||
#if defined(DEBUG_PIC)
|
||||
{
|
||||
int i;
|
||||
for(i = 0; i < 2; i++) {
|
||||
printf("pic%d: imr=%x irr=%x padd=%d\n",
|
||||
i, pics[i].imr, pics[i].irr, pics[i].priority_add);
|
||||
|
||||
}
|
||||
}
|
||||
printf("pic: cpu_interrupt req=%d\n", pic_irq_requested);
|
||||
#endif
|
||||
cpu_interrupt(global_env, CPU_INTERRUPT_HARD);
|
||||
}
|
||||
}
|
||||
@ -787,6 +826,18 @@ void pic_set_irq(int irq, int level)
|
||||
pic_update_irq();
|
||||
}
|
||||
|
||||
/* acknowledge interrupt 'irq' */
|
||||
static inline void pic_intack(PicState *s, int irq)
|
||||
{
|
||||
if (s->auto_eoi) {
|
||||
if (s->rotate_on_auto_eoi)
|
||||
s->priority_add = (irq + 1) & 7;
|
||||
} else {
|
||||
s->isr |= (1 << irq);
|
||||
}
|
||||
s->irr &= ~(1 << irq);
|
||||
}
|
||||
|
||||
int cpu_x86_get_pic_interrupt(CPUState *env)
|
||||
{
|
||||
int irq, irq2, intno;
|
||||
@ -804,22 +855,20 @@ int cpu_x86_get_pic_interrupt(CPUState *env)
|
||||
|
||||
if (irq >= 8) {
|
||||
irq2 = irq & 7;
|
||||
pics[1].isr |= (1 << irq2);
|
||||
pics[1].irr &= ~(1 << irq2);
|
||||
pic_intack(&pics[1], irq2);
|
||||
irq = 2;
|
||||
intno = pics[1].irq_base + irq2;
|
||||
} else {
|
||||
intno = pics[0].irq_base + irq;
|
||||
}
|
||||
pics[0].isr |= (1 << irq);
|
||||
pics[0].irr &= ~(1 << irq);
|
||||
pic_intack(&pics[0], irq);
|
||||
return intno;
|
||||
}
|
||||
|
||||
void pic_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
|
||||
{
|
||||
PicState *s;
|
||||
int priority;
|
||||
int priority, cmd, irq;
|
||||
|
||||
#ifdef DEBUG_PIC
|
||||
printf("pic_write: addr=0x%02x val=0x%02x\n", addr, val);
|
||||
@ -837,45 +886,48 @@ void pic_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
|
||||
if (val & 0x08)
|
||||
hw_error("level sensitive irq not supported");
|
||||
} else if (val & 0x08) {
|
||||
if (val & 0x04) {
|
||||
if (val & 0x04)
|
||||
s->poll = 1;
|
||||
} else {
|
||||
if (val & 0x02)
|
||||
s->read_reg_select = val & 1;
|
||||
if (val & 0x40)
|
||||
s->special_mask = (val >> 5) & 1;
|
||||
}
|
||||
} else {
|
||||
switch(val) {
|
||||
case 0x00:
|
||||
case 0x80:
|
||||
s->rotate_on_autoeoi = val >> 7;
|
||||
cmd = val >> 5;
|
||||
switch(cmd) {
|
||||
case 0:
|
||||
case 4:
|
||||
s->rotate_on_auto_eoi = cmd >> 2;
|
||||
break;
|
||||
case 0x20: /* end of interrupt */
|
||||
case 0xa0:
|
||||
case 1: /* end of interrupt */
|
||||
case 5:
|
||||
priority = get_priority(s, s->isr);
|
||||
if (priority >= 0) {
|
||||
s->isr &= ~(1 << ((priority + s->priority_add) & 7));
|
||||
if (priority != 8) {
|
||||
irq = (priority + s->priority_add) & 7;
|
||||
s->isr &= ~(1 << irq);
|
||||
if (cmd == 5)
|
||||
s->priority_add = (irq + 1) & 7;
|
||||
pic_update_irq();
|
||||
}
|
||||
if (val == 0xa0)
|
||||
s->priority_add = (s->priority_add + 1) & 7;
|
||||
break;
|
||||
case 3:
|
||||
irq = val & 7;
|
||||
s->isr &= ~(1 << irq);
|
||||
pic_update_irq();
|
||||
break;
|
||||
case 0x60 ... 0x67:
|
||||
priority = val & 7;
|
||||
s->isr &= ~(1 << priority);
|
||||
pic_update_irq();
|
||||
break;
|
||||
case 0xc0 ... 0xc7:
|
||||
case 6:
|
||||
s->priority_add = (val + 1) & 7;
|
||||
pic_update_irq();
|
||||
break;
|
||||
case 0xe0 ... 0xe7:
|
||||
priority = val & 7;
|
||||
s->isr &= ~(1 << priority);
|
||||
s->priority_add = (priority + 1) & 7;
|
||||
case 7:
|
||||
irq = val & 7;
|
||||
s->isr &= ~(1 << irq);
|
||||
s->priority_add = (irq + 1) & 7;
|
||||
pic_update_irq();
|
||||
break;
|
||||
default:
|
||||
/* no operation */
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
@ -897,6 +949,7 @@ void pic_ioport_write(CPUState *env, uint32_t addr, uint32_t val)
|
||||
}
|
||||
break;
|
||||
case 3:
|
||||
s->special_fully_nested_mode = (val >> 4) & 1;
|
||||
s->auto_eoi = (val >> 1) & 1;
|
||||
s->init_state = 0;
|
||||
break;
|
||||
@ -935,7 +988,7 @@ uint32_t pic_ioport_read(CPUState *env, uint32_t addr1)
|
||||
addr = addr1;
|
||||
s = &pics[addr >> 7];
|
||||
addr &= 1;
|
||||
if (s->poll == 1) {
|
||||
if (s->poll) {
|
||||
ret = pic_poll_read(s, addr1);
|
||||
s->poll = 0;
|
||||
} else {
|
||||
@ -1729,6 +1782,9 @@ void serial_received_byte(SerialState *s, int ch)
|
||||
fflush(stdout);
|
||||
term_command = 1;
|
||||
break;
|
||||
case 'd':
|
||||
cpu_set_log(CPU_LOG_ALL);
|
||||
break;
|
||||
case TERM_ESCAPE:
|
||||
goto send_char;
|
||||
}
|
||||
@ -3180,7 +3236,7 @@ void help(void)
|
||||
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
|
||||
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
|
||||
"-cdrom file use 'file' as IDE cdrom 2 image\n"
|
||||
"-boot [c|d] boot on hard disk (c) or CD-ROM (d)\n"
|
||||
"-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
|
||||
"-snapshot write to temporary files instead of disk image files\n"
|
||||
"-m megs set virtual RAM size to megs MB\n"
|
||||
"-n script set network init script [default=%s]\n"
|
||||
@ -3195,7 +3251,7 @@ void help(void)
|
||||
"Debug/Expert options:\n"
|
||||
"-s wait gdb connection to port %d\n"
|
||||
"-p port change gdb connection port\n"
|
||||
"-d output log in /tmp/vl.log\n"
|
||||
"-d output log to %s\n"
|
||||
"-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
|
||||
"-L path set the directory for the BIOS and VGA BIOS\n"
|
||||
"\n"
|
||||
@ -3206,7 +3262,8 @@ void help(void)
|
||||
"qemu-fast",
|
||||
#endif
|
||||
DEFAULT_NETWORK_SCRIPT,
|
||||
DEFAULT_GDBSTUB_PORT);
|
||||
DEFAULT_GDBSTUB_PORT,
|
||||
"/tmp/qemu.log");
|
||||
term_print_help();
|
||||
#ifndef CONFIG_SOFTMMU
|
||||
printf("\n"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user