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-rw-r--r--io-module/mts_io.c51
1 files changed, 47 insertions, 4 deletions
diff --git a/io-module/mts_io.c b/io-module/mts_io.c
index a67c475..6316894 100644
--- a/io-module/mts_io.c
+++ b/io-module/mts_io.c
@@ -400,10 +400,10 @@ static struct gpio_pin gpio_pins_mt100eocg_0_0[] = {
static struct gpio_pin gpio_pins_en4_0_0[] = {
{
- .name = "ETH0_ENABLED",
- .attr_name = "eth0-enabled",
+ .name = "NETH_RST",
+ .attr_name = "eth-switch-enabled",
.pin = AT91_PIN_PC6,
- .direction = GPIO_DIR_OUTPUT,
+ .direction = GPIO_DIR_INPUT,
.output_value = 1,
.use_pullup = 0,
},
@@ -2229,6 +2229,49 @@ static struct device_attribute dev_attr_serial_mode = {
.store = mts_attr_store_serial_mode,
};
+static ssize_t mts_attr_store_eth_switch_en(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ int value;
+ int err;
+ struct gpio_pin *pin = gpio_pin_by_attr_name(attr->attr.name);
+
+ if (!pin) {
+ return -ENODEV;
+ }
+
+ if (sscanf(buf, "%i", &value) != 1) {
+ return -EINVAL;
+ }
+
+ mutex_lock(&mts_io_mutex);
+
+ // set to input if high (floating), else set as output and drive low
+ if (value) {
+ err = at91_set_gpio_input(pin->pin, pin->use_pullup);
+ }
+ else {
+ err = at91_set_gpio_output_with_pullup(pin->pin, value, pin->use_pullup);
+ }
+
+ mutex_unlock(&mts_io_mutex);
+
+ if (err) {
+ return err;
+ }
+
+ return count;
+}
+
+static struct device_attribute dev_attr_eth_switch_enabled = {
+ .attr = {
+ .name = "eth-switch-enabled",
+ .mode = MTS_ATTR_MODE_RW,
+ },
+ .show = mts_attr_show_gpio_pin,
+ .store = mts_attr_store_eth_switch_en,
+};
+
static struct attribute *mt100eocg_platform_attributes[] = {
&dev_attr_extserial_dtr.attr,
&dev_attr_extserial_cd.attr,
@@ -2279,7 +2322,7 @@ static struct attribute *en4_platform_attributes[] = {
&dev_attr_extserial_ri_gpio.attr,
&dev_attr_extserial_cd.attr,
&dev_attr_rsersrc.attr,
- &dev_attr_eth0_enabled.attr,
+ &dev_attr_eth_switch_enabled.attr,
&dev_attr_bt_enabled.attr,
&dev_attr_wlan_enabled.attr,