#define GPIO_FUNC_SEL0 0x80000018 /* GPIO 15 - 0; 2 bit blocks */
#define GPIO_FUNC_SEL2 0x80000020 /* GPIO 47 - 32; 2 bit blocks */
#define BASE_UART1 0x80005000
#define UART1_CON 0x80005000
#define UART1_STAT 0x80005004
#define UART1_DATA 0x80005008
#define UR1CON 0x8000500c
#define UT1CON 0x80005010
#define UART1_CTS 0x80005014
#define UART1_BR 0x80005018
#define GPIO_PAD_DIR0 0x80000000
#define GPIO_DATA0 0x80000008
#include "maca.h"
#include "embedded_types.h"
#include "isr.h"
#define reg(x) (*(volatile uint32_t *)(x))
#define DELAY 100000
#define DATA 0x00401000;
#define NL "\033[K\r\n"
void putc(uint8_t c);
void puts(uint8_t *s);
void put_hex(uint8_t x);
void put_hex16(uint16_t x);
void put_hex32(uint32_t x);
const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
'8','9','a','b','c','d','e','f'};
void magic(void) {
#define X 0x80009a000
#define Y 0x80009a008
#define VAL 0x0000f7df
volatile uint32_t x,y;
x = reg(X); /* get X */
x &= 0xfffeffff; /* clear bit 16 */
reg(X) = x; /* put it back */
y = reg(Y); /* get Y */
y |= VAL; /* or with the VAL */
x = reg(X); /* get X again */
x |= 16; /* or with 16 */
reg(X) = x; /* put X back */
reg(Y) = y; /* put Y back */
}
uint32_t ackBox[10];
#define command_xcvr_rx() \
do { \
maca_txlen = (uint32_t)1<<16; \
maca_dmatx = (uint32_t)&ackBox; \
maca_dmarx = DATA; \
maca_tmren = (maca_cpl_clk | maca_soft_clk); \
maca_control = (control_prm | control_asap | control_seq_rx); \
}while(FALSE)
#define PAYLOAD_LEN 16 /* not including the extra 4 bytes for len+fcs+somethingelse */
/* maca dmatx needs extra 4 bytes for checksum */
/* needs + 4 bytes for len(1 byte) + fcs(2 bytes) + somethingelse */
#define command_xcvr_tx() \
do { \
maca_txlen = (uint32_t)(PAYLOAD_LEN+4); \
maca_dmatx = (uint32_t)DATA; \
maca_dmarx = (uint32_t)&ackBox; \
maca_control = (control_prm | control_mode_no_cca | \
control_asap | control_seq_tx); \
}while(FALSE)
void dump_regs(uint32_t base, uint32_t len) {
volatile uint32_t i;
puts("base +0 +4 +8 +c +10 +14 +18 +1c \n\r");
for (i = 0; i < len; i ++) {
if ((i & 7) == 0) {
put_hex16(4 * i);
}
puts(" ");
put_hex32(reg(base+(4*i)));
if ((i & 7) == 7)
puts(NL);
}
puts(NL);
}
volatile uint8_t led;
#include "led.h"
#define LED LED_RED
#define led_on() do { led = 1; reg(GPIO_DATA0) = LED; } while(0);
#define led_off() do { led = 0; reg(GPIO_DATA0) = 0x00000000; } while(0);
void toggle_led(void) {
if(0 == led) {
led_on();
led = 1;
} else {
led_off();
}
}
volatile uint8_t *data;
uint8_t count=0;
void fill_data(void) {
uint8_t i;
for(i=0; i<PAYLOAD_LEN; i++) {
data[i] = count++;
}
}
__attribute__ ((section ("startup")))
void main(void) {
uint8_t c;
volatile uint32_t i;
uint32_t tmp;
uint16_t status;
*(volatile uint32_t *)GPIO_PAD_DIR0 = LED;
led_on();
/* Restore UART regs. to default */
/* in case there is still bootloader state leftover */
reg(UART1_CON) = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
#define INC 767
#define MOD 9999
reg(UART1_BR) = INC<<16 | MOD;
/* see Section 11.5.1.2 Alternate Modes */
/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
/* From the datasheet: "The peripheral function will control operation of the pad IF */
/* THE PERIPHERAL IS ENABLED. */
reg(UART1_CON) = 0x00000003; /* enable receive and transmit */
reg(GPIO_FUNC_SEL0) = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
reset_maca();
radio_init();
vreg_init();
flyback_init();
init_phy();
set_power(0x0f); /* 0dbm */
set_channel(0); /* channel 11 */
reg(MACA_CONTROL) = SMAC_MACA_CNTL_INIT_STATE;
for(i=0; i<DELAY; i++) { continue; }
data = (void *)DATA;
reg(MACA_DMARX) = DATA; /* put data somewhere */
reg(MACA_PREAMBLE) = 0;
/* puts("maca_base\n\r"); */
/* dump_regs(MACA_BASE, 96); */
/* puts("modem write base\n\r"); */
/* dump_regs(0x80009000, 96); */
/* puts("modem read base\n\r"); */
/* dump_regs(0x800091c0, 96); */
/* puts("CRM\n\r"); */
/* dump_regs(0x80003000, 96); */
/* puts("reserved modem_base\n\r"); */
/* dump_regs(0x80009200, 192); */
reg(GPIO_FUNC_SEL2) = (0x01 << ((44-16*2)*2));
reg(GPIO_PAD_DIR0) = reg(GPIO_PAD_DIR0) | (1<<(44-32));
fill_data();
command_xcvr_tx();
// puts("\033[H\033[2J");
while(1) {
if(_is_action_complete_interrupt(maca_irq)) {
maca_clrirq = maca_irq;
status = reg(MACA_STATUS) & 0x0000ffff;
switch(status)
{
case(cc_aborted):
{
puts("aborted\n\r");
ResumeMACASync();
break;
}
case(cc_not_completed):
{
puts("not completed\n\r");
ResumeMACASync();
break;
}
case(cc_timeout):
{
puts("timeout\n\r");
ResumeMACASync();
break;
}
case(cc_no_ack):
{
puts("no ack\n\r");
ResumeMACASync();
break;
}
case(cc_ext_timeout):
{
puts("ext timeout\n\r");
ResumeMACASync();
break;
}
case(cc_ext_pnd_timeout):
{
puts("ext pnd timeout\n\r");
ResumeMACASync();
break;
}
case(cc_success):
{
// puts("success\n\r");
puts("rftest-tx --- " );
puts(" payload len+crc: 0x");
put_hex(PAYLOAD_LEN+4);
puts(" timestamp: 0x");
put_hex32(maca_timestamp);
puts("\n\r");
puts(" data: ");
for(i=0; i<PAYLOAD_LEN; i++) {
put_hex(data[i]);
putc(' ');
}
puts("\n\r");
toggle_led();
fill_data();
command_xcvr_tx();
break;
}
default:
{
puts("status: ");
put_hex16(status);
ResumeMACASync();
}
}
} else if (_is_filter_failed_interrupt(maca_irq)) {
puts("filter failed\n\r");
ResumeMACASync();
}
for(i=0; i<DELAY; i++) { continue; }
};
}
void putc(uint8_t c) {
while(reg(UT1CON)==31); /* wait for there to be room in the buffer */
reg(UART1_DATA) = c;
}
void puts(uint8_t *s) {
while(s && *s!=0) {
putc(*s++);
}
}
void put_hex(uint8_t x)
{
putc(hex[x >> 4]);
putc(hex[x & 15]);
}
void put_hex16(uint16_t x)
{
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}
void put_hex32(uint32_t x)
{
put_hex((x >> 24) & 0xFF);
put_hex((x >> 16) & 0xFF);
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}