diff options
Diffstat (limited to 'io-module/mts_io.c')
| -rw-r--r-- | io-module/mts_io.c | 51 |
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, |