mirror of
https://github.com/saymrwulf/uhd.git
synced 2026-05-16 21:10:10 +00:00
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include "usrp_e.h"
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#include "usrp_e_regs.hpp"
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// Usage: usrp_e_gpio <string>
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static int fp;
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static int read_reg(__u16 reg)
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{
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int ret;
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struct usrp_e_ctl16 d;
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d.offset = reg;
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d.count = 1;
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ret = ioctl(fp, USRP_E_READ_CTL16, &d);
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return d.buf[0];
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}
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static void write_reg(__u16 reg, __u16 val)
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{
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int ret;
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struct usrp_e_ctl16 d;
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d.offset = reg;
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d.count = 1;
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d.buf[0] = val;
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ret = ioctl(fp, USRP_E_WRITE_CTL16, &d);
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}
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int main(int argc, char *argv[])
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{
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int test;
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test = 0;
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if (argc < 2) {
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printf("%s 0|1|off\n", argv[0]);
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}
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fp = open("/dev/usrp_e0", O_RDWR);
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printf("fp = %d\n", fp);
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if (fp < 0) {
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perror("Open failed");
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return -1;
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}
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if (strcmp(argv[1], "0") == 0) {
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printf("Selected 0 based on %s\n", argv[1]);
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write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF);
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write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF);
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write_reg(UE_REG_GPIO_TX_SEL, 0x0);
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write_reg(UE_REG_GPIO_RX_SEL, 0x0);
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write_reg(UE_REG_GPIO_TX_DBG, 0xFFFF);
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write_reg(UE_REG_GPIO_RX_DBG, 0xFFFF);
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} else if (strcmp(argv[1], "1") == 0) {
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printf("Selected 1 based on %s\n", argv[1]);
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write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF);
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write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF);
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write_reg(UE_REG_GPIO_TX_SEL, 0xFFFF);
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write_reg(UE_REG_GPIO_RX_SEL, 0xFFFF);
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write_reg(UE_REG_GPIO_TX_DBG, 0xFFFF);
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write_reg(UE_REG_GPIO_RX_DBG, 0xFFFF);
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} else {
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printf("Selected off based on %s\n", argv[1]);
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write_reg(UE_REG_GPIO_TX_DDR, 0x0);
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write_reg(UE_REG_GPIO_RX_DDR, 0x0);
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}
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return 0;
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}
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