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White Rabbit Switch - Software
Commit 33f4c20c authored by Alessandro Rubini's avatar Alessandro Rubini
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userspace: remove watchdog.c

parent d294af4f
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Showing with 2 additions and 119 deletions
userspace/libswitchhw/Makefile
View file @ 33f4c20c
......@@ -5,7 +5,7 @@ CFLAGS = -I. -O2 -I../include -DDEBUG -I./minilzo
OBJS = pio.o pio_pins.o trace.o init.o fpga_io.o util.o ad9516.o \
fpgaboot.o minilzo/minilzo.o clkb_io.o xpoint.o \
mblaster.o pps_gen.o watchdog.o
mblaster.o pps_gen.o
LIB = libswitchhw.a
......
userspace/libswitchhw/init.c
View file @ 33f4c20c
......@@ -38,7 +38,7 @@ int shw_init()
/* Start-up the PPS generator */
assert_init(shw_pps_gen_init());
/* ... and the SPI link with the watchdog */
assert_init(shw_watchdog_init());
/* no more shw_watchdog_init(); */
TRACE(TRACE_INFO, "HW initialization done!");
}
......
userspace/libswitchhw/watchdog.c deleted 100644 → 0
View file @ d294af4f
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <hw/switch_hw.h>
#include <hw/pio.h>
#include <hw/watchdog.h>
static const pio_pin_t PIN_sck[] = {{PIOB, 14, PIO_MODE_GPIO, PIO_OUT_1}, {0}};
static const pio_pin_t PIN_cs[] = {{PIOB, 15, PIO_MODE_GPIO, PIO_OUT_1}, {0}};
static const pio_pin_t PIN_sdout[] = {{PIOB, 12, PIO_MODE_GPIO, PIO_OUT_1}, {0}};
static const pio_pin_t PIN_sdin[] = {{PIOB, 13, PIO_MODE_GPIO, PIO_IN}, {0}};
#define WD_CMD_SET_LED 1
#define WD_CMD_FEEDBACK 2
#define WD_CMD_GET_UNIQUE_ID 3
static inline void spi_cs(int val)
{
shw_pio_set(PIN_cs, val);
}
static inline uint8_t spi_txrx(uint8_t x)
{
int i;
uint8_t rval = 0;
for(i=0;i<8;i++)
{
shw_udelay(100);
shw_pio_set(PIN_sdout, x&0x80 ? 1 :0);
shw_udelay(100);
shw_pio_set0(PIN_sck);
shw_udelay(100);
rval <<= 1;
if(shw_pio_get(PIN_sdin)) rval |= 1;
shw_udelay(100);
shw_pio_set1(PIN_sck);
shw_udelay(100);
x<<=1;
}
return rval;
}
/* SPI transfer of (size) 8-bit words to/from the watchdog */
static void wd_spi_xfer(uint8_t *buf, int size)
{
int i;
printf("Xfer: %d bytes\n", size);
spi_cs(0);
for(i=0;i<size;i++)
buf[i]=spi_txrx(buf[i]);
spi_cs(1);
shw_udelay(500);
}
/* Sets the status of the mini-backplane (V2) leds */
void shw_mbl_set_leds(int port, int led, int mode)
{
uint8_t cmd_buf[4];
cmd_buf[0] = WD_CMD_SET_LED;
cmd_buf[1] = port;
cmd_buf[2] = led;
cmd_buf[3] = mode;
wd_spi_xfer(cmd_buf, 4);
}
void shw_mbl_cal_feedback(int port, int cmd)
{
uint8_t cmd_buf[4];
TRACE(TRACE_INFO, "EnableFeedback: port %d cmd %d", port, cmd);
/* cmd_buf[0] = WD_CMD_FEEDBACK;
cmd_buf[1] = port;
cmd_buf[2] = cmd;
cmd_buf[3] = 0;*/
wd_spi_xfer(cmd_buf, 4);
}
int shw_get_board_id(uint8_t *id)
{
int i;
uint8_t cmd_buf[8];
cmd_buf[0] = WD_CMD_GET_UNIQUE_ID;
cmd_buf[1] = 0;
cmd_buf[2] = 0;
cmd_buf[3] = 0;
for(i=0;i<8;i++) id[i] = 0xff;
wd_spi_xfer(cmd_buf, 4);
shw_udelay(10000);
wd_spi_xfer(id, 8);
return 0;
}
int shw_watchdog_init()
{
TRACE(TRACE_INFO,"Initializing watchdog SPI link");
shw_pio_configure(PIN_sck);
shw_pio_configure(PIN_cs);
shw_pio_configure(PIN_sdout);
shw_pio_configure(PIN_sdin);
return 0;
}
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