void handler_dev_arm_write(u2_t addr, u1_t data)
{
assert (addr == WREG_LDACCW || addr == WREG_LDACSTART || addr == WREG_LDACSTOP ||
addr == WREG_O2 || addr == WREG_O1 || addr == WREG_O3);
#ifdef DEBUG
if (trace_regs) {
if ((addr == WREG_O3) && isActive(O3_N3_OVRST, data)) printf("R3 "); else
if ((addr == WREG_O3) && isActive(O3_N0_OVRST, data)) printf("R0 "); else
printf("%s=%02x ", arm_wreg[addr - ADDR_ARM(0)], data);
}
#endif
// let PRU count N0/N3 overflows while measuring
// FIXME: is this test valid for all measurement modes? O2_ARM_EN instead? TI +/- vs +only mode?
if ((addr == WREG_O2) && isActive(O2_MAN_ARM, data)) {
num_meas++;
if (meas_time == 0) meas_time = timer_ms();
#ifdef DEBUG
if (trace_regs) { printf("* "); fflush(stdout); }
#endif
freq_record(0, REG_STR, 0, 0, 0, "* ");
if (use_pru) {
#if 0
//assert(pru->count == PRU_DONE);
if (pru->count != PRU_DONE) {
printf("write O2_MAN_ARM: pru->count != PRU_DONE? [i.e. PRU never saw EOM]\n");
}
#endif
bus_write(addr, data); // let arm command go through
n3_ovfl_sent = n0_ovfl_sent = ovfl_none = 0;
send_pru_cmd(PRU_CLEAR);
hold_off = TRUE;
pru->count = PRU_COUNT;
return;
}
}
// ignore WREG_O3 writes to clear overflow bits while PRU is doing it
if (use_pru && hold_off && (addr == WREG_O3)) {
return;
}
#ifdef FREQ_DEBUG
if (use_pru && !hold_off) {
if (addr == WREG_O3) {
if (isActive(O3_N3_OVRST, data) || isActive(O3_N0_OVRST, data))
freq_record(0, REG_READ, addr, data, 0, 0);
}
}
#endif
bus_write(addr, data);
}
static void bus_write_string(char *buf, char *str){
int len = strlen(str);
int i = 0;
for (i = 0; i < len; i++){
bus_write(8, buf + i, *((char *)(str + i)));
}
bus_write(8, buf + i, '\0');
}
void fake_master::run()
{
uint32_t data = 0;
uint32_t addr = 0;
uint32_t length = 4;
bus_write(data, addr, 4);
wait(200, SC_NS);
addr += 4;
data += 100;
bus_write(data, addr, 4);
wait(200, SC_NS);
addr += 4;
data += 100;
bus_write(data, addr, 4);
wait(200, SC_NS);
addr += 4;
data += 100;
bus_write(data, addr, 4);
wait(200, SC_NS);
addr += 4;
data += 100;
bus_write(data, addr, 4);
wait(200, SC_NS);
addr = 0;
bus_read(&data, addr, 4);
wait(200, SC_NS);
addr += 4;
bus_read(&data, addr, 4);
wait(200, SC_NS);
addr += 4;
bus_read(&data, addr, 4);
wait(200, SC_NS);
addr += 4;
bus_read(&data, addr, 4);
wait(200, SC_NS);
addr += 4;
bus_read(&data, addr, 4);
wait(200, SC_NS);
}
void ds1302_write(unsigned char addr, unsigned char val)
{
CLR_RST;
bus_nop;
CLR_CLK;
bus_nop;
SET_RST; //enable chip
bus_nop;
bus_write(addr); /* 地址，命令 */
bus_write(val); /* 写1Byte数据*/
SET_CLK;
bus_nop;
CLR_RST;
bus_nop;
}
int
main(int argc, char *argv[])
{
bus_t bus;
int i;
if (argc < 2)
return fprintf(stderr, "USAGE: %s daemon...", *argv), 2;
t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
for (i = 1; i < argc; i++) {
sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null", argv[i]);
if (WEXITSTATUS(system(arg))) {
sprintf(arg, "%ji require %s", (intmax_t)getppid(), argv[i]);
t(bus_write(&bus, arg, 0));
}
}
bus_close(&bus);
return 0;
fail:
perror("require");
bus_close(&bus);
return 1;
}
int FASTCALL ppc_write_effective_word(uint32 addr, uint32 data)
{
PPC_CPU_State* cpu = get_current_cpu();
e500_core_t * current_core = get_current_core();
uint32 p;
int r;
if(addr & 0x3){
//ppc_exception for unalign
}
if (!((r=ppc_effective_to_physical(current_core, addr, PPC_MMU_WRITE, &p)))) {
if(in_ccsr_range(p)){
int offset = p - current_core->get_ccsr_base(cpu->ccsr);
//skyeye_config.mach->mach_io_write_word(&gCPU, offset, data);
skyeye_config_t* config = get_current_config();
config->mach->mach_io_write_word(cpu, offset, data);
//printf("DBG:write to CCSR,value=0x%x,offset=0x%x,pc=0x%x\n", data, offset,current_core->pc);
}
else{
bus_write(32, p, data);
//fprintf(stderr,"in %s, can not find address 0x%x,pc=0x%x,ccsr_base=0x%x, ccsr=0x%x\n", __FUNCTION__, p, current_core->pc, GET_CCSR_BASE(gCPU.ccsr), gCPU.ccsr);
//skyeye_exit(-1);
}
}
return r;
}
int perform_write(const char *dev, uint32_t addr, uint32_t len, uint32_t value)
{
struct dtree_dev_t *d = dtree_byname(dev);
if(d == NULL) {
fprintf(stderr, "No device '%s' found\n", dev);
return 1;
}
dtree_addr_t base = dtree_dev_base(d);
dtree_addr_t high = dtree_dev_high(d);
if(base < high) {
if(base + addr + len > high) {
verbosity_printf(1, "Address is out of range of the device: 0x%08X (high: 0x%08X)", base + addr, high);
return 2;
}
}
verbosity_printf(1, "Action: write, device: '%s', offset: '0x%08X', data: '0x%08X', len: '%d'", dev, addr, value, len);
bus_write(dtree_dev_base(d), addr, value, len);
dtree_dev_free(d);
return 0;
}
inline void register_write(uint8_t reg, uint8_t value)
/* Write to register
Writes a value to an APU register by feeding the 6502
with instructions for loading the value into A, and then
storing the value in $40<reg>.
*/
{
// Put STA_zp on bus before deactivating CPU latch
bus_write(STA_zp);
// Open latch output
bus_select(CPU_ADDRESS);
// The code in the register set function has to be cycle exact, so it has to
// be run with interrupts disabled:
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
register_set(reg, value);
}
// Finally, latch the last bus value by deselecting the CPU
bus_deselect();
// Reflect change in mirror
reg_mirror[reg] = value;
}
int FASTCALL ppc_write_effective_byte(uint32 addr, uint8 data)
{
uint32 p;
int r;
e500_core_t* current_core = get_current_core();
PPC_CPU_State* cpu = get_current_cpu();
if (!((r=ppc_effective_to_physical(current_core, addr, PPC_MMU_WRITE, &p)))) {
//ppc_io_write_byte (¤t_core-> p, data);
//printf("DBG:in %s,addr=0x%x,p=0x%x, data=0x%x, pc=0x%x\n", __FUNCTION__, addr,p, data, current_core->pc);
//printf("DBG:ccsr=0x%x,CCSR_BASE=0x%x",current_core->ccsr.ccsr,GET_CCSR_BASE(current_core->ccsr.ccsr));
if(in_ccsr_range(p)){
int offset = p - current_core->get_ccsr_base(cpu->ccsr);
//skyeye_config.mach->mach_io_write_byte(&gCPU, offset, data);
skyeye_config_t* config = get_current_config();
config->mach->mach_io_write_byte(cpu, offset, data);
return r;
//printf("DBG:write to CCSR,value=0x%x,offset=0x%x\n", data, offset);
}
else{
bus_write(8, p, data);
//fprintf(stderr,"in %s, can not find address 0x%x,pc=0x%x,ccsr=0x%x\n", __FUNCTION__, p, current_core->pc, gCPU.ccsr);
//skyeye_exit(-1);
}
}
return r;
}
u4_t dsp_leds_write(u4_t a, u1_t d)
{
if (!dsp_7seg_ok) return 0;
dsp_leds_cache[a] = d;
bus_write(ADDR_LEDS(a), d);
return 0;
}
size_t Mtd::fitted_write(const uint8_t *txdata, size_t len, uint32_t offset) {
osalDbgAssert(len != 0, "something broken in higher level");
osalDbgAssert((offset + len) <= (cfg.pages * cfg.pagesize),
"Transaction out of device bounds");
osalDbgAssert(((offset / cfg.pagesize) == ((offset + len - 1) / cfg.pagesize)),
"Data can not be fitted in single page");
return bus_write(txdata, len, offset);
}
// c == 0 means there is no underlying string char generating this 7-segment digit
// i.e. we're being called from interpreted code
u4_t dsp_7seg_write(u4_t pos, char c, u1_t d)
{
if (!dsp_7seg_ok) return 0;
dsp_numeric = c? FALSE : TRUE;
dsp_char_cache[pos] = c;
dsp_7seg_cache[pos] = d;
bus_write(ADDR_7SEG(pos), d);
//if (c) { printf("%d", pos); if (c==' ') c='_'; if (c) printf(":%c ", c); else printf("=%02x ", d); if (pos==15) printf("\n"); fflush(stdout); }
return 0;
}
void io_reset_pc()
{
bus_write(STA_zp);
bus_select(CPU_ADDRESS);
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
reset_pc();
}
bus_deselect();
}
/*
* load a block of data to the memory.
*/
exception_t load_data(void* src, size_t len, generic_address_t load_addr){
char* p = src;
generic_address_t addr = load_addr;
int i = 0;
while(i < len){
//skyeye_log(Debug_log, __FUNCTION__, "data=0x%x,addr=0x%x\n", *(p + i), addr);
bus_write(8, addr, *(p + i));
addr++;
i++;
}
return No_exp;
}
/*
* 时钟数据地址 格式为: 秒 分 时 日 月 星期 年 控制
* 8Byte (BCD码) 1B 1B 1B 1B 1B 1B 1B 1B
*/
void ds1302_write_burst(unsigned char *data)
{
unsigned char i;
DS1302_WP_DIS;/* 控制命令,WP=0,写操作?*/
CLR_RST;
bus_nop;
CLR_CLK;
bus_nop;
SET_RST;
bus_nop;
bus_write(DS1302_CLKBURST_Reg); /* 0xbe:时钟多字节写命令 */
for (i=8;i>0;i--) /*8Byte = 7Byte 时钟数据 + 1Byte 控制*/
{
bus_write(*val);/* 写1Byte数据*/
val++;
}
SET_CLK;
bus_nop;
CLR_RST;
DS1302_WP_EN;
}
static void arch_mips_write_memory(cpu_t *cpu, addr_t addr, uint32_t value, uint32_t size)
{
uint32_t pa = addr;
/* if pa is located at kseg0 */
if(pa >= 0x80000000 && pa < 0xA0000000)
pa = pa & ~0x80000000;
/* if pa is located at kseg1 */
if(pa >= 0xa0000000 && pa < 0xC0000000)
pa = pa & ~0xE0000000;
bus_write(size, addr, value);
}
/* wb_write_words :put words in Write Buffer
* @state: ARMul_State
* @wb_t: write buffer
* @pa: physical address
* @data: data ptr
* @n number of word to write
*
* Note: write buffer merge is not implemented, can be done late
* */
void
mmu_wb_write_bytes (ARMul_State * state, wb_s * wb_t, ARMword pa,
ARMbyte * data, int n)
{
int i;
wb_entry_t *wb;
while (n) {
if (wb_t->num == wb_t->used) {
/*clean the last wb entry */
ARMword t;
wb = &wb_t->entrys[wb_t->last];
t = wb->pa;
for (i = 0; i < wb->nb; i++) {
//mem_write_byte (state, t, wb->data[i]);
bus_write(8, t, wb->data[i]);
//t += WORD_SIZE;
t++;
}
wb_t->last++;
if (wb_t->last == wb_t->num)
wb_t->last = 0;
wb_t->used--;
}
wb = &wb_t->entrys[wb_t->first];
i = (n < wb_t->nb) ? n : wb_t->nb;
wb->pa = pa;
//pa += i << WORD_SHT;
pa += i;
wb->nb = i;
//memcpy(wb->data, data, i << WORD_SHT);
memcpy (wb->data, data, i);
data += i;
n -= i;
wb_t->first++;
if (wb_t->first == wb_t->num)
wb_t->first = 0;
wb_t->used++;
};
//teawater add for set_dirty fflash cache function 2005.07.18-------------------
#ifdef DBCT
if (!skyeye_config.no_dbct) {
tb_setdirty (state, pa, NULL);
}
#endif
//AJ2D--------------------------------------------------------------------------
}
u4_t dsp_7seg_dp(u4_t pos)
{
if (!dsp_7seg_ok) return 0;
u1_t d = dsp_7seg_cache[pos];
d |= DP;
dsp_7seg_cache[pos] = d;
bus_write(ADDR_7SEG(pos), d);
if (dsp_char_cache[pos]) {
dsp_char_cache[pos] |= DP;
}
return 0;
}
int main(int argc, char *argv[])
{
bus_t bus;
if (argc < 3)
return fprintf(stderr, "USAGE: %s state daemon", *argv), 2;
t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
sprintf(arg, "%ji %s %s", (intmax_t)getppid(), argv[1], argv[2]);
t(bus_write(&bus, arg));
t(bus_close(&bus));
return 0;
fail:
perror("announce");
return 1;
}
/* write memory by external modules */
void ARMV5::memWrite(uint32_t data, uint32_t vir, int size)
{
/* NOTE: don't use data_write() function directly, or it probably brings some bizarre side effects */
uint32_t phy = 0;
bool cache = true;
if (mmu_enable) {
vir2phy(vir, &phy, CPSR_MODE(rf.cpsr), true, &cache);
}
else {
phy = vir;
}
bus_write(data, phy, size);
}
int bus_send_done(struct bus_descriptor* bus, bus_addr_t daddr)
{
int len;
struct bus_hdr* header;
len = sizeof(struct bus_hdr);
char buffer[len];
header = get_bus_header(buffer);
header->daddr = daddr;
header->dtype = DT_NULL;
header->stype = bus_node_type;
header->opcode.op = BUSOP_DONE;
header->saddr = addr;
bus_write(bus, buffer, len);
return 0;
}
/**
* Performs a sequence of write actions based on a file input.
* The file input are hexadecimal numbers (given in parse_hex
* compatible format), one per line.
*
* The given file descriptor is closed (even on error).
*/
int perform_file_write(const char *dev, uint32_t addr, uint32_t len, FILE *f)
{
char s_value [S_BUFFSIZE];
uint32_t value;
assert(f != NULL);
struct dtree_dev_t *d = dtree_byname(dev);
if(d == NULL) {
fprintf(stderr, "No device '%s' found\n", dev);
fclose(f);
return 1;
}
while (fgets(s_value, S_BUFFSIZE, f) != NULL) {
size_t s_len = strlen(s_value);
if (s_value[s_len - 1] == '\n') {
s_value[s_len - 1] = '\0';
}
value = parse_hex(s_value, s_len);
verbosity_printf(1, "Action: write, device: '%s', offset: '0x%08X', data: '0x%08X', len: '%d'", dev, addr, value, len);
const dtree_addr_t base = dtree_dev_base(d);
const dtree_addr_t high = dtree_dev_high(d);
if(base < high) {
if(base + addr + len > high) {
verbosity_printf(1, "Address is out of range of the device: 0x%08X (high: 0x%08X)", base + addr, high);
return 2;
}
}
bus_write(base, addr, value, len);
addr += len;
}
dtree_dev_free(d);
fclose(f);
return 0;
}
unsigned char ds1302_read(unsigned char addr)
{
unsigned char val;
addr|=1; //读操作，最低bit为1，
CLR_RST;
bus_nop;
CLR_CLK;
bus_nop;
SET_RST;
bus_nop;
bus_write(addr); /* 地址，命令 */
val = bus_read(); /* 读1Byte数据 */
SET_CLK;
bus_nop;
CLR_RST;
bus_nop;
return(val);
}
static void
announce_wait(pid_t pid)
{
bus_t bus;
int i;
t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
for (i = 1; i < argc; i++) {
if (!started[i]) {
sprintf(arg, "%ji awaiting-started %s", (intmax_t)pid, argv[i]);
t(bus_write(&bus, arg, 0));
}
}
t(bus_close(&bus));
return;
fail:
perror("await-started");
}
void ds1302_time_get_burst(unsigned char *val)
{
unsigned char i;
CLR_RST;
bus_nop;
CLR_CLK;
bus_nop;
SET_RST;
bus_nop;
bus_write(DS1302_CLKBURST_Reg+1); /* 0xbf:时钟多字节读命令 */
for (i=8; i>0; i--)
{
*val = bus_read(); /* 读1Byte数据 */
val++;
}
SET_CLK;
bus_nop;
CLR_RST;
}
void handler_dev_display_write(u2_t addr, u1_t data)
{
#ifdef DEBUG
if (trace_regs) printf("%c%x", (ADDR_DEV(addr) == ADDR_7SEG(0))? 'D':'L', addr&0xf);
#endif
if (ADDR_DEV(addr) == ADDR_7SEG(0)) {
dsp_7seg_write(POS(addr - ADDR_7SEG(0)), 0, data);
} else
if (ADDR_DEV(addr) == ADDR_LEDS(0xf)) { // remember ADDR_LEDS() is reversed
dsp_leds_write(0xf - (addr - ADDR_LEDS(0xf)), data);
} else {
bus_write(addr, data);
}
#ifdef DEBUG
// last digit of display has been written
if ((display_all || deviation) && (addr == ADDR_7SEG(0xf))) {
static char dbuf[128];
static double dval2;
static u4_t ddn, dskip;
freq_record(0, REG_STR, 0, 0, 0, "D ");
dsp_7seg_translate(dbuf, &dval2); ddn++;
if (display_all || ((ddn & 0xf) == 0))
printf("%s\n", dbuf);
if (deviation && (fabs(dval-dval2) > 0.000001)) {
printf("+%d %12.9f\n", ddn, dval2);
ddn = 0;
#ifdef FREQ_DEBUG
if (dskip > 50) reg_dump(0, reg_dump_read, NULL, reg_dump_str);
#endif
}
freq_record(0, REG_RESET, 0, 0, 0, 0);
dskip++;
}
#endif
}
void ds1302_ram_write_burst(unsigned char *val)
{
unsigned char i;
DS1302_WP_DIS; //解除写保护
CLR_RST;
bus_nop;
CLR_CLK;
bus_nop;
SET_RST;
bus_nop;
DS1302_RAM_BURST_WRITE; /* 0xfe:RAM多字节写命令 */
for (i=31;i>0;i--) /*31Byte 寄存器数据 */
{
bus_write(*val); /* 写1Byte数据*/
val++;
}
SET_CLK;
bus_nop;
CLR_RST;
DS1302_WP_EN;
}
/* wb_drain_all
* @wb_t wb_t to drain
* */
void
mmu_wb_drain_all (ARMul_State * state, wb_s * wb_t)
{
ARMword pa;
wb_entry_t *wb;
int i;
while (wb_t->used) {
wb = &wb_t->entrys[wb_t->last];
pa = wb->pa;
for (i = 0; i < wb->nb; i++) {
//mem_write_byte (state, pa, wb->data[i]);
bus_write(8, pa, wb->data[i]);
//pa += WORD_SIZE;
pa++;
}
wb_t->last++;
if (wb_t->last == wb_t->num)
wb_t->last = 0;
wb_t->used--;
};
}
/**
* Broadcast a message on a bus
*
* @param bus Bus information
* @param message The message to write, may not be longer than
* `BUS_MEMORY_SIZE` including the NUL-termination
* @param timeout The time the operation shall fail with errno set
* to `EAGAIN` if not completed
* @param clockid The ID of the clock the `timeout` is measured with,
* it most be a predictable clock
* @return 0 on success, -1 on error
*/
int bus_write_timed(const bus_t *bus, const char *message,
const struct timespec *timeout, clockid_t clockid)
{
int saved_errno;
#ifndef BUS_SEMAPHORES_ARE_SYNCHRONOUS
int state = 0;
#endif
struct timespec delta;
if (!timeout)
return bus_write(bus, message, 0);
DELTA;
if (acquire_semaphore_timed(bus, X, SEM_UNDO, &delta) == -1)
return -1;
DELTA;
t(zero_semaphore_timed(bus, W, 0, &delta));
write_shared_memory(bus, message);
#ifndef BUS_SEMAPHORES_ARE_SYNCHRONOUS
t(release_semaphore(bus, N, SEM_UNDO)); state++;
#endif
t(write_semaphore(bus, Q, 0));
t(zero_semaphore(bus, S, 0));
#ifndef BUS_SEMAPHORES_ARE_SYNCHRONOUS
t(acquire_semaphore(bus, N, SEM_UNDO)); state--;
#endif
t(release_semaphore(bus, X, SEM_UNDO));
return 0;
fail:
saved_errno = errno;
#ifndef BUS_SEMAPHORES_ARE_SYNCHRONOUS
if (state > 0)
acquire_semaphore(bus, N, SEM_UNDO);
#endif
release_semaphore(bus, X, SEM_UNDO);
errno = saved_errno;
return -1;
}
void input_refresh(void)
/* Reads one column of switch data each time it is called and auto-increments
the current row
*/
{
static uint8_t current_row = 0;
static uint8_t stage = 0;
static uint8_t last_data = 0;
// Update row latch value
bus_select(ROW_ADDRESS);
bus_write(row_mirror | (0x20 << current_row));
nop();
// Latch row value and switch to the switch column input buffer
bus_select(SWITCHCOL_ADDRESS);
bus_dir_input();
uint8_t switch_data = bus_read();
bus_dir_output();
bus_deselect();
if (stage == 1) {
// Expand the switch bits into individual bytes in the input array
uint8_t* row = &input[current_row];
// Debouncing:
*row = (switch_data & *row) | (switch_data & last_data) | (last_data & *row);
if (++current_row == 3)
current_row = 0;
}
stage ^= 1;
last_data = switch_data;
}