Added control of external DTR and external DCD signals for MT100ECDP.

1 files changed, 131 insertions, 0 deletions

diff --git a/io-module/mts_io.c b/io-module/mts_io.c
index 4697209..8c1251b 100644
--- a/io-module/mts_io.c
+++ b/io-module/mts_io.c
@@ -329,6 +329,13 @@ static struct gpio_pin gpio_pins_mt100ecdp_0_0[] = {
 		.use_pullup = 0,
 	},
 	{
+		.name = "DCD1",
+		.pin = AT91_PIN_PB3,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
 		.name = "GPIO11",
 		.pin = AT91_PIN_PB19,
 		.direction = GPIO_DIR_OUTPUT,
@@ -1840,6 +1847,109 @@ static ssize_t mts_attr_store_gpio12(struct device *dev,
 	return count;
 }
 
+static ssize_t mts_attr_show_rsersrc(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("RSERSRC");
+
+	if (!pin) {
+		return -ENODEV;
+	}
+
+	mutex_lock(&mts_io_mutex);
+
+	value = at91_get_gpio_value(pin->pin);
+
+	mutex_unlock(&mts_io_mutex);
+
+	if (value < 0) {
+		return value;
+	}
+
+	return sprintf(buf, "%d\n", !value);
+}
+
+static ssize_t mts_attr_store_rsersrc(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int value;
+	int err;
+	struct gpio_pin *pin = gpio_pin_by_name("RSERSRC");
+
+	if (!pin) {
+		return -ENODEV;
+	}
+
+	if (sscanf(buf, "%i", &value) != 1) {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mts_io_mutex);
+
+	err = at91_set_gpio_value(pin->pin, !value);
+
+	mutex_unlock(&mts_io_mutex);
+
+	if (err) {
+		return err;
+	}
+
+	return count;
+}
+
+static ssize_t mts_attr_show_cd(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("DCD1");
+
+	if (!pin) {
+		return -ENODEV;
+	}
+
+	mutex_lock(&mts_io_mutex);
+
+	value = at91_get_gpio_value(pin->pin);
+
+	mutex_unlock(&mts_io_mutex);
+
+	if (value < 0) {
+		return value;
+	}
+
+	return sprintf(buf, "%d\n", !value);
+}
+
+static ssize_t mts_attr_store_cd(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int value;
+	int err;
+	struct gpio_pin *pin = gpio_pin_by_name("DCD1");
+
+	if (!pin) {
+		return -ENODEV;
+	}
+
+	if (sscanf(buf, "%i", &value) != 1) {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mts_io_mutex);
+
+	err = at91_set_gpio_value(pin->pin, !value);
+
+	mutex_unlock(&mts_io_mutex);
+
+	if (err) {
+		return err;
+	}
+
+	return count;
+}
+
+
 static struct device_attribute dev_attr_gpo1 = {
 	.attr = {
 		.name = "gpo1",
@@ -2000,8 +2110,29 @@ static struct device_attribute dev_attr_gpio12 = {
 	.store = mts_attr_store_gpio12,
 };
 
+static struct device_attribute dev_attr_rsersrc = {
+	.attr = {
+		.name = "rsersrc",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_rsersrc,
+	.store = mts_attr_store_rsersrc,
+};
+
+static struct device_attribute dev_attr_extserial_cd = {
+	.attr = {
+		.name = "extserial-dcd",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_cd,
+	.store = mts_attr_store_cd,
+};
+
 
 static struct attribute *mt100ecdp_platform_attributes[] = {
+	&dev_attr_extserial_dtr.attr,
+	&dev_attr_extserial_cd.attr,
+	&dev_attr_rsersrc.attr,
 	&dev_attr_radio_reset.attr,
 	&dev_attr_eth0_enabled.attr,
 	&dev_attr_gpio11.attr,