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author | Josh Blum <josh@joshknows.com> | 2010-11-23 13:50:37 -0800 |
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committer | Josh Blum <josh@joshknows.com> | 2010-11-23 13:50:37 -0800 |
commit | 30ce5acedd3e0dc6fc97d7597781a0a4828812f2 (patch) | |
tree | 28d010c0938121f587e1820849c34ee900e7f74b /host/apps/omap_debug/usrp-e-gpio.c | |
parent | 8ce75a3ca7a51f4bdee87d78a610a0f2519473ae (diff) | |
parent | 13ae4786e091d5581baf31c9967dca822ef15e39 (diff) | |
download | uhd-30ce5acedd3e0dc6fc97d7597781a0a4828812f2.tar.gz uhd-30ce5acedd3e0dc6fc97d7597781a0a4828812f2.tar.bz2 uhd-30ce5acedd3e0dc6fc97d7597781a0a4828812f2.zip |
Merge branch 'usrp_e100' into next
Conflicts:
images/Makefile
Diffstat (limited to 'host/apps/omap_debug/usrp-e-gpio.c')
-rw-r--r-- | host/apps/omap_debug/usrp-e-gpio.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/host/apps/omap_debug/usrp-e-gpio.c b/host/apps/omap_debug/usrp-e-gpio.c new file mode 100644 index 000000000..adef877d3 --- /dev/null +++ b/host/apps/omap_debug/usrp-e-gpio.c @@ -0,0 +1,83 @@ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/types.h> +#include <fcntl.h> +#include <string.h> +#include <sys/ioctl.h> + +#include "usrp_e.h" +#include "usrp_e_regs.hpp" + +// Usage: usrp_e_gpio <string> + +static int fp; + +static int read_reg(__u16 reg) +{ + int ret; + struct usrp_e_ctl16 d; + + d.offset = reg; + d.count = 1; + ret = ioctl(fp, USRP_E_READ_CTL16, &d); + return d.buf[0]; +} + +static void write_reg(__u16 reg, __u16 val) +{ + int ret; + struct usrp_e_ctl16 d; + + d.offset = reg; + d.count = 1; + d.buf[0] = val; + ret = ioctl(fp, USRP_E_WRITE_CTL16, &d); +} + +int main(int argc, char *argv[]) +{ + int i, test, data_in; + + test = 0; + if (argc > 1) + test = 1; + + fp = open("/dev/usrp_e0", O_RDWR); + printf("fp = %d\n", fp); + + write_reg(UE_REG_GPIO_TX_DDR, 0x0); + write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF); + + for (i=0; i < 16; i++) { + write_reg(UE_REG_GPIO_RX_IO, 1 << i); + sleep(1); + if (test) { + data_in = read_reg(UE_REG_GPIO_TX_IO); + if (data_in != (1 << i)) + printf("Read failed, wrote: %X read: %X\n", \ + 1 << i, data_in); + } + } + + write_reg(UE_REG_GPIO_RX_DDR, 0x0); + write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF); + + sleep(1); + + for (i=0; i < 16; i++) { + write_reg(UE_REG_GPIO_TX_IO, 1 << i); + sleep(1); + if (test) { + data_in = read_reg(UE_REG_GPIO_RX_IO); + if (data_in != (1 << i)) + printf("Read failed, wrote: %X read: %X\n", \ + 1 << i, data_in); + } + } + + write_reg(UE_REG_GPIO_RX_DDR, 0x0); + write_reg(UE_REG_GPIO_TX_DDR, 0x0); + + return 0; +} |