generic: move ledbar driver from mediatek target

This moves the ledbar driver to generic, to be also used by the ramips target.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>

1 files changed, 0 insertions, 255 deletions

diff --git a/target/linux/mediatek/files/drivers/leds/leds-ubnt-ledbar.c b/target/linux/mediatek/files/drivers/leds/leds-ubnt-ledbar.c
deleted file mode 100644
index 555340c5e8..0000000000
--- a/target/linux/mediatek/files/drivers/leds/leds-ubnt-ledbar.c
+++ /dev/null
@@ -1,255 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/leds.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
-#include <linux/gpio/consumer.h>
-
-/**
- * Driver for the Ubiquiti RGB LED controller (LEDBAR).
- * This Controller is based on a Holtek HT32F52241 and connected
- * via I2C.
- *
- *  - The Controller needs an enable signal set to high when
- *    performing a transaction. On the U6-LR, this is located
- *    at Pin 18 (R6902)
- *
- *  - The Pin is also printed when calling the "usetled" function
- *    contained in the ubntapp bootloader application.
- */
-
-#define UBNT_LEDBAR_MAX_BRIGHTNESS	0xff
-
-#define UBNT_LEDBAR_TRANSACTION_LENGTH	8
-#define UBNT_LEDBAR_TRANSACTION_SUCCESS	(char) 0xaa
-
-#define UBNT_LEDBAR_TRANSACTION_BLUE_IDX	2
-#define UBNT_LEDBAR_TRANSACTION_GREEN_IDX	3
-#define UBNT_LEDBAR_TRANSACTION_RED_IDX		4
-#define UBNT_LEDBAR_TRANSACTION_LED_COUNT_IDX	6
-
-struct ubnt_ledbar {
-	struct mutex lock;
-	u32 led_count;
-	struct i2c_client *client;
-	struct led_classdev led_red;
-	struct led_classdev led_green;
-	struct led_classdev led_blue;
-	struct gpio_desc *enable_gpio;
-	struct gpio_desc *reset_gpio;
-};
-
-static void ubnt_ledbar_perform_transaction(struct ubnt_ledbar *ledbar,
-					   const char *transaction, int len,
-					   char *result, int result_len)
-{
-	int i;
-
-	for (i = 0; i < len; i++)
-		i2c_smbus_write_byte(ledbar->client, transaction[i]);
-
-	for (i = 0; i < result_len; i++)
-		result[i] = i2c_smbus_read_byte(ledbar->client);
-}
-
-static int ubnt_ledbar_apply_state(struct ubnt_ledbar *ledbar)
-{
-	char setup_msg[UBNT_LEDBAR_TRANSACTION_LENGTH] = {0x40, 0x10, 0x00, 0x00,
-							  0x00, 0x00, 0x00, 0x11};
-	char led_msg[UBNT_LEDBAR_TRANSACTION_LENGTH] = {0x40, 0x00, 0x00, 0x00,
-							0x00, 0x00, 0x00, 0x00};
-	char i2c_response;
-	int ret = 0;
-
-	mutex_lock(&ledbar->lock);
-
-	led_msg[UBNT_LEDBAR_TRANSACTION_BLUE_IDX] = ledbar->led_blue.brightness;
-	led_msg[UBNT_LEDBAR_TRANSACTION_GREEN_IDX] = ledbar->led_green.brightness;
-	led_msg[UBNT_LEDBAR_TRANSACTION_RED_IDX] = ledbar->led_red.brightness;
-	led_msg[UBNT_LEDBAR_TRANSACTION_LED_COUNT_IDX] = ledbar->led_count;
-
-	gpiod_set_value(ledbar->enable_gpio, 1);
-
-	msleep(10);
-
-	ubnt_ledbar_perform_transaction(ledbar, setup_msg, sizeof(setup_msg), &i2c_response, sizeof(i2c_response));
-	if (i2c_response != UBNT_LEDBAR_TRANSACTION_SUCCESS) {
-		dev_err(&ledbar->client->dev, "Error initializing LED transaction: %02hhx\n", i2c_response);
-		ret = -EINVAL;
-		goto out_gpio;
-	}
-
-	ubnt_ledbar_perform_transaction(ledbar, led_msg, sizeof(led_msg), &i2c_response, sizeof(i2c_response));
-	if (i2c_response != UBNT_LEDBAR_TRANSACTION_SUCCESS) {
-		dev_err(&ledbar->client->dev, "Failed LED transaction: %02hhx\n", i2c_response);
-		ret = -EINVAL;
-		goto out_gpio;
-	}
-
-	msleep(10);
-out_gpio:
-	gpiod_set_value(ledbar->enable_gpio, 0);
-
-	mutex_unlock(&ledbar->lock);
-
-	return ret;
-}
-
-static void ubnt_ledbar_reset(struct ubnt_ledbar *ledbar)
-{
-	static const char init_msg[16] = {0x02, 0x81, 0xfd, 0x7e,
-					  0x00, 0x00, 0x00, 0x00,
-					  0x00, 0x00, 0x00, 0x00,
-					  0x00, 0x00, 0x00, 0x00};
-	char init_response[4];
-
-	if (!ledbar->reset_gpio)
-		return;
-
-	mutex_lock(&ledbar->lock);
-
-	gpiod_set_value(ledbar->reset_gpio, 1);
-	msleep(10);
-	gpiod_set_value(ledbar->reset_gpio, 0);
-
-	msleep(10);
-
-	gpiod_set_value(ledbar->enable_gpio, 1);
-	msleep(10);
-	ubnt_ledbar_perform_transaction(ledbar, init_msg, sizeof(init_msg), init_response, sizeof(init_response));
-	msleep(10);
-	gpiod_set_value(ledbar->enable_gpio, 0);
-
-	mutex_unlock(&ledbar->lock);
-}
-
-#define UBNT_LEDBAR_CONTROL_RGBS(name)				\
-static int ubnt_ledbar_set_##name##_brightness(struct led_classdev *led_cdev,\
-					enum led_brightness value)	\
-{									\
-	struct ubnt_ledbar *ledbar = \
-			container_of(led_cdev, struct ubnt_ledbar, led_##name); \
-	int ret; \
-	led_cdev->brightness = value; \
-	ret = ubnt_ledbar_apply_state(ledbar); \
-	return ret; \
-}
-
-UBNT_LEDBAR_CONTROL_RGBS(red);
-UBNT_LEDBAR_CONTROL_RGBS(green);
-UBNT_LEDBAR_CONTROL_RGBS(blue);
-
-
-static int ubnt_ledbar_init_led(struct device_node *np, struct ubnt_ledbar *ledbar,
-				struct led_classdev *led_cdev)
-{
-	struct led_init_data init_data = {};
-	int ret;
-
-	if (!np)
-		return 0;
-
-	init_data.fwnode = of_fwnode_handle(np);
-
-	led_cdev->max_brightness = UBNT_LEDBAR_MAX_BRIGHTNESS;
-
-	ret = devm_led_classdev_register_ext(&ledbar->client->dev, led_cdev,
-					     &init_data);
-	if (ret)
-		dev_err(&ledbar->client->dev, "led register err: %d\n", ret);
-
-	return ret;
-}
-
-
-static int ubnt_ledbar_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
-{
-	struct device_node *np = client->dev.of_node;
-	struct ubnt_ledbar *ledbar;
-	int ret;
-
-	ledbar = devm_kzalloc(&client->dev, sizeof(*ledbar), GFP_KERNEL);
-	if (!ledbar)
-		return -ENOMEM;
-
-	ledbar->enable_gpio = devm_gpiod_get(&client->dev, "enable", GPIOD_OUT_LOW);
-
-	if (IS_ERR(ledbar->enable_gpio)) {
-		ret = PTR_ERR(ledbar->enable_gpio);
-		dev_err(&client->dev, "Failed to get enable gpio: %d\n", ret);
-		return ret;
-	}
-
-	ledbar->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_LOW);
-
-	if (IS_ERR(ledbar->reset_gpio)) {
-		ret = PTR_ERR(ledbar->reset_gpio);
-		dev_err(&client->dev, "Failed to get reset gpio: %d\n", ret);
-		return ret;
-	}
-
-	ledbar->led_count = 1;
-	of_property_read_u32(np, "led-count", &ledbar->led_count);
-
-	ledbar->client = client;
-
-	mutex_init(&ledbar->lock);
-
-	i2c_set_clientdata(client, ledbar);
-
-	// Reset and initialize the MCU
-	ubnt_ledbar_reset(ledbar);
-
-	ledbar->led_red.brightness_set_blocking = ubnt_ledbar_set_red_brightness;
-	ubnt_ledbar_init_led(of_get_child_by_name(np, "red"), ledbar, &ledbar->led_red);
-
-	ledbar->led_green.brightness_set_blocking = ubnt_ledbar_set_green_brightness;
-	ubnt_ledbar_init_led(of_get_child_by_name(np, "green"), ledbar, &ledbar->led_green);
-
-	ledbar->led_blue.brightness_set_blocking = ubnt_ledbar_set_blue_brightness;
-	ubnt_ledbar_init_led(of_get_child_by_name(np, "blue"), ledbar, &ledbar->led_blue);
-
-	return ubnt_ledbar_apply_state(ledbar);
-}
-
-static int ubnt_ledbar_remove(struct i2c_client *client)
-{
-	struct ubnt_ledbar *ledbar = i2c_get_clientdata(client);
-
-	mutex_destroy(&ledbar->lock);
-
-	return 0;
-}
-
-static const struct i2c_device_id ubnt_ledbar_id[] = {
-	{ "ubnt-ledbar", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, ubnt_ledbar_id);
-
-static const struct of_device_id of_ubnt_ledbar_match[] = {
-	{ .compatible = "ubnt,ledbar", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, of_ubnt_ledbar_match);
-
-static struct i2c_driver ubnt_ledbar_driver = {
-	.driver = {
-		.name	= "ubnt-ledbar",
-		.of_match_table = of_ubnt_ledbar_match,
-	},
-	.probe		= ubnt_ledbar_probe,
-	.remove		= ubnt_ledbar_remove,
-	.id_table	= ubnt_ledbar_id,
-};
-module_i2c_driver(ubnt_ledbar_driver);
-
-MODULE_DESCRIPTION("Ubiquiti LEDBAR driver");
-MODULE_AUTHOR("David Bauer <mail@david-bauer.net>");
-MODULE_LICENSE("GPL v2");