blob: 5dfb4fb12fe79e647fdcc4bfbc8efbcd84d29c21 [file] [log] [blame]
/*
* Copyright (c) 2021 IP-Logix Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <shell/shell.h>
#include <stdlib.h>
#include <drivers/mdio.h>
#include <string.h>
#include <sys/util.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(mdio_shell, CONFIG_LOG_DEFAULT_LEVEL);
#define MDIO_DEVICE "MDIO"
/*
* Scan the entire 5-bit address space of the MDIO bus
*
* scan [<dev_addr>]
*/
static int cmd_mdio_scan(const struct shell *sh, size_t argc, char **argv)
{
const struct device *dev;
int cnt;
uint16_t data;
uint16_t dev_addr;
dev = device_get_binding(MDIO_DEVICE);
if (!dev) {
shell_error(sh, "MDIO: Device driver %s not found.",
MDIO_DEVICE);
return -ENODEV;
}
if (argc >= 2) {
dev_addr = strtol(argv[1], NULL, 16);
} else {
dev_addr = 0;
}
shell_print(sh,
"Scanning bus for devices. Reading register 0x%x",
dev_addr);
cnt = 0;
mdio_bus_enable(dev);
for (int i = 0; i < 32; i++) {
data = 0;
if (mdio_read(dev, i, dev_addr, &data) >= 0 &&
data != UINT16_MAX) {
cnt++;
shell_print(sh, "Found MDIO device @ 0x%x", i);
}
}
mdio_bus_disable(dev);
shell_print(sh, "%u devices found on %s", cnt, MDIO_DEVICE);
return 0;
}
/* mdio write <port_addr> <dev_addr> <data> */
static int cmd_mdio_write(const struct shell *sh, size_t argc, char **argv)
{
const struct device *dev;
uint16_t data;
uint16_t dev_addr;
uint16_t port_addr;
dev = device_get_binding(MDIO_DEVICE);
if (!dev) {
shell_error(sh, "MDIO: Device driver %s not found.",
MDIO_DEVICE);
return -ENODEV;
}
port_addr = strtol(argv[1], NULL, 16);
dev_addr = strtol(argv[2], NULL, 16);
data = strtol(argv[3], NULL, 16);
mdio_bus_enable(dev);
if (mdio_write(dev, port_addr, dev_addr, data) < 0) {
shell_error(sh, "Failed to write to device: %s", MDIO_DEVICE);
mdio_bus_disable(dev);
return -EIO;
}
mdio_bus_disable(dev);
return 0;
}
/* mdio read <port_addr> <dev_addr> */
static int cmd_mdio_read(const struct shell *sh, size_t argc, char **argv)
{
const struct device *dev;
uint16_t data;
uint16_t dev_addr;
uint16_t port_addr;
dev = device_get_binding(MDIO_DEVICE);
if (!dev) {
shell_error(sh, "MDIO: Device driver %s not found.",
MDIO_DEVICE);
return -ENODEV;
}
port_addr = strtol(argv[1], NULL, 16);
dev_addr = strtol(argv[2], NULL, 16);
mdio_bus_enable(dev);
if (mdio_read(dev, port_addr, dev_addr, &data) < 0) {
shell_error(sh, "Failed to read from device: %s", MDIO_DEVICE);
mdio_bus_disable(dev);
return -EIO;
}
mdio_bus_disable(dev);
shell_print(sh, "%x[%x]: 0x%x", port_addr, dev_addr, data);
return 0;
}
SHELL_STATIC_SUBCMD_SET_CREATE(sub_mdio_cmds,
SHELL_CMD_ARG(scan, NULL,
"Scan MDIO bus for devices: scan [<dev_addr>]",
cmd_mdio_scan, 0, 1),
SHELL_CMD_ARG(read, NULL,
"Read from MDIO device: read <phy_addr> <dev_addr>",
cmd_mdio_read, 3, 0),
SHELL_CMD_ARG(write, NULL,
"Write to MDIO device: write <phy_addr> <dev_addr> <value>",
cmd_mdio_write, 4, 0),
SHELL_SUBCMD_SET_END /* Array terminated. */
);
SHELL_CMD_REGISTER(mdio, &sub_mdio_cmds, "MDIO commands", NULL);