268 lines
6.6 KiB
C
268 lines
6.6 KiB
C
#define GPIO_FUNC_SEL0 0x80000018 /* GPIO 15 - 0; 2 bit blocks */
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#define BASE_UART1 0x80005000
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#define UART1_CON 0x80005000
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#define UART1_STAT 0x80005004
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#define UART1_DATA 0x80005008
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#define UR1CON 0x8000500c
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#define UT1CON 0x80005010
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#define UART1_CTS 0x80005014
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#define UART1_BR 0x80005018
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#define GPIO_PAD_DIR0 0x80000000
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#define GPIO_DATA0 0x80000008
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#include "maca.h"
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#include "embedded_types.h"
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#include "isr.h"
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#define reg(x) (*(volatile uint32_t *)(x))
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#define DELAY 400000
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#define DATA 0x00401000;
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#define NL "\033[K\r\n"
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void putc(uint8_t c);
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void puts(uint8_t *s);
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void put_hex(uint8_t x);
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void put_hex16(uint16_t x);
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void put_hex32(uint32_t x);
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const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
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'8','9','a','b','c','d','e','f'};
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uint32_t ackBox[10];
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#define MAX_PAYLOAD 128
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volatile uint8_t data[MAX_PAYLOAD];
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/* maca_rxlen is very important */
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#define command_xcvr_rx() \
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do { \
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maca_txlen = ((0xff)<<16); \
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maca_dmatx = (uint32_t)&ackBox; \
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maca_dmarx = data; \
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maca_tmren = (maca_cpl_clk | maca_soft_clk); \
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maca_control = (control_prm | control_asap | control_seq_rx); \
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}while(FALSE)
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void dump_regs(uint32_t base, uint32_t len) {
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volatile uint32_t i;
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puts("base +0 +4 +8 +c +10 +14 +18 +1c \n\r");
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for (i = 0; i < len; i ++) {
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if ((i & 7) == 0) {
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put_hex16(4 * i);
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}
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puts(" ");
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put_hex32(reg(base+(4*i)));
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if ((i & 7) == 7)
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puts(NL);
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}
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puts(NL);
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}
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volatile uint8_t led;
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#define led_on() do { led = 1; reg(GPIO_DATA0) = 0x00000200; } while(0);
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#define led_off() do { led = 0; reg(GPIO_DATA0) = 0x00000000; } while(0);
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void toggle_led(void) {
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if(0 == led) {
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led_on();
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led = 1;
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} else {
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led_off();
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}
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}
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__attribute__ ((section ("startup")))
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void main(void) {
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uint8_t c;
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volatile uint32_t i;
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uint32_t tmp;
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uint16_t status;
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*(volatile uint32_t *)GPIO_PAD_DIR0 = 0x00000200;
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led_on();
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/* Restore UART regs. to default */
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/* in case there is still bootloader state leftover */
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reg(UART1_CON) = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
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/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
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#define INC 767
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#define MOD 9999
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reg(UART1_BR) = INC<<16 | MOD;
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/* see Section 11.5.1.2 Alternate Modes */
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/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
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/* From the datasheet: "The peripheral function will control operation of the pad IF */
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/* THE PERIPHERAL IS ENABLED. */
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reg(UART1_CON) = 0x00000003; /* enable receive and transmit */
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reg(GPIO_FUNC_SEL0) = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
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reset_maca();
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radio_init();
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flyback_init();
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vreg_init();
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init_phy();
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set_power(0x0f); /* 0dbm */
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set_channel(0); /* channel 11 */
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reg(MACA_CONTROL) = SMAC_MACA_CNTL_INIT_STATE;
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for(i=0; i<DELAY; i++) { continue; }
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reg(MACA_DMARX) = data; /* put data somewhere */
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reg(MACA_PREAMBLE) = 0;
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/* puts("maca_base\n\r"); */
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/* dump_regs(MACA_BASE, 96); */
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/* puts("modem write base\n\r"); */
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/* dump_regs(0x80009000, 96); */
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/* puts("modem read base\n\r"); */
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/* dump_regs(0x800091c0, 96); */
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/* puts("CRM\n\r"); */
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/* dump_regs(0x80003000, 96); */
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/* puts("reserved modem_base\n\r"); */
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/* dump_regs(0x80009200, 192); */
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command_xcvr_rx();
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// puts("\033[H\033[2J");
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while(1) {
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if(_is_action_complete_interrupt(maca_irq)) {
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maca_clrirq = maca_irq;
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status = reg(MACA_STATUS) & 0x0000ffff;
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switch(status)
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{
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case(cc_aborted):
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{
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puts("aborted\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_not_completed):
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{
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puts("not completed\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_timeout):
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{
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puts("timeout\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_no_ack):
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{
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puts("no ack\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_ext_timeout):
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{
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puts("ext timeout\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_ext_pnd_timeout):
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{
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puts("ext pnd timeout\n\r");
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ResumeMACASync();
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break;
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}
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case(cc_success):
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{
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// puts("success\n\r");
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puts("rftest-rx --- " );
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puts(" maca_getrxlvl: 0x");
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put_hex(reg(MACA_GETRXLVL));
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puts(" timestamp: 0x");
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put_hex32(maca_timestamp);
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puts("\n\r");
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puts(" data: 0x");
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put_hex32(data);
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putc(' ');
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for(i=0; i<=(reg(MACA_GETRXLVL)-4); i++) { /* fcs+somethingelse is not transferred by DMA */
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put_hex(data[i]);
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putc(' ');
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}
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puts("\n\r");
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toggle_led();
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ResumeMACASync();
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command_xcvr_rx();
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break;
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}
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default:
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{
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puts("status: ");
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put_hex16(status);
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ResumeMACASync();
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command_xcvr_rx();
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}
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}
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} else if (_is_filter_failed_interrupt(maca_irq)) {
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puts("filter failed\n\r");
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ResumeMACASync();
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command_xcvr_rx();
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} else if (_is_checksum_failed_interrupt(maca_irq)) {
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puts("crc failed\n\r");
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ResumeMACASync();
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command_xcvr_rx();
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}
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};
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}
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void putc(uint8_t c) {
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while(reg(UT1CON)==31); /* wait for there to be room in the buffer */
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reg(UART1_DATA) = c;
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}
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void puts(uint8_t *s) {
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while(s && *s!=0) {
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putc(*s++);
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}
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}
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void put_hex(uint8_t x)
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{
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putc(hex[x >> 4]);
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putc(hex[x & 15]);
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}
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void put_hex16(uint16_t x)
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{
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put_hex((x >> 8) & 0xFF);
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put_hex((x) & 0xFF);
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}
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void put_hex32(uint32_t x)
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{
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put_hex((x >> 24) & 0xFF);
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put_hex((x >> 16) & 0xFF);
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put_hex((x >> 8) & 0xFF);
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put_hex((x) & 0xFF);
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}
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