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runtime: add dds_program

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This commit is contained in:
Sebastien Bourdeauducq 2014-07-23 11:49:48 -06:00
parent d922c3db7e
commit ba088614d8
2 changed files with 26 additions and 0 deletions
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1
artiq/devices/runtime.py
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@ -8,6 +8,7 @@ _syscalls = [
("gpio_set", "ii:v"),
("rtio_set", "iii:v"),
("rtio_sync", "i:v"),
("dds_program", "ii:v"),
]
def _str_to_functype(s):

25
soc/runtime/main.c
View File

@ -7,6 +7,7 @@
#include <uart.h>
#include <console.h>
#include <system.h>
#include <hw/common.h>
#include <generated/csr.h>
#include "elf_loader.h"
@ -145,11 +146,35 @@ static void rtio_sync(int channel)
while(rtio_o_level_read() != 0);
}
#define DDS_FTW 0x0a
#define DDS_PTW 0x0e
#define DDS_FUD 0x40
#define DDS_GPIO 0x41
#define DDS_WRITE1(addr, data) \
MMPTR(0xb0000000 + (addr)*4) = data
#define DDS_WRITE2(addr, data) \
DDS_WRITE1(addr, (data) >> 8); \
DDS_WRITE1((addr) + 1, data)
#define DDS_WRITE4(addr, data) \
DDS_WRITE2(addr, (data) >> 16); \
DDS_WRITE2((addr) + 2, data)
static void dds_program(int channel, int ftw)
{
DDS_WRITE1(DDS_GPIO, channel);
DDS_WRITE4(DDS_FTW, ftw);
DDS_WRITE1(DDS_FUD, 0);
}
static const struct symbol syscalls[] = {
{"__syscall_rpc", rpc},
{"__syscall_gpio_set", gpio_set},
{"__syscall_rtio_set", rtio_set},
{"__syscall_rtio_sync", rtio_sync},
{"__syscall_dds_program", dds_program},
{NULL, NULL}
};