catarrh/simtrace2
1
0
Fork 0
mirror of https://gitea.osmocom.org/sim-card/simtrace2.git synced 2026-03-17 05:38:33 +03:00
Code Issues Packages Projects Releases Wiki Activity

firmware: octsimtest: Make slot mux configurable via USB

Browse Source 
Change-Id: I4cdb250d2e1dbc5b8b0169f8b7c21e288b492e1d
This commit is contained in:
Harald Welte
2021-06-03 11:15:21 +02:00
parent 3561fc4c8b
commit d46f6bae2c
5 changed files with 36 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
firmware/libboard/octsimtest/source/mux.c
View File

@@ -20,6 +20,7 @@
#include "board.h"
#include "mux.h"
#include <stdbool.h>
#include <errno.h>
/* 3-bit S0..S2 signal for slot selection */
static const Pin pin_in_sel[3] = {
@@ -38,6 +39,8 @@ static const Pin pin_freq_sel[3] = {
/* low-active output enable for all muxes */
static const Pin pin_oe = { PIO_PA19, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT };
static uint8_t g_mux_slot = 0;
/* initialize the external 1:8 multiplexers */
void mux_init(void)
{
@@ -49,10 +52,13 @@ void mux_init(void)
}
/* set the slot selection mux */
void mux_set_slot(uint8_t s)
int mux_set_slot(uint8_t s)
{
printf("%s(%u)\r\n", __func__, s);
if (s > 7)
return -EINVAL;
/* !OE = H: disconnect input and output of muxes */
PIO_Set(&pin_oe);
@@ -71,6 +77,14 @@ void mux_set_slot(uint8_t s)
/* !OE = L: (re-)enable the output of muxes */
PIO_Clear(&pin_oe);
g_mux_slot = s;
return s;
}
int mux_get_slot(void)
{
return g_mux_slot;
}
/* set the frequency divider mux */