[PATCH] [LEDS] Extend support of blinkm device
Signed-off-by: Jan-Simon Möller <jansimon.moeller@xxxxxx>
---
drivers/leds/leds-blinkm.c | 190
+++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 188 insertions(+), 2 deletions(-)
diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index a502678..11e2201 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -77,7 +77,7 @@ struct blinkm_data {
u8 next_brightness; /* HSB brightness */
/* currently unused / todo */
u8 fade_speed; /* fade speed 1 - 255 */
- s8 time_adjust; /* time adjust -128 - 127 */
+ s8 time_adj; /* time adjust -128 - 127 */
u8 fade:1; /* fade on = 1, off = 0 */
u8 rand:1; /* rand fade mode on = 1 */
u8 script_id; /* script ID */
@@ -89,6 +89,9 @@ struct blinkm_data {
#define RED 0
#define GREEN 1
#define BLUE 2
+#define HUE 3
+#define SAT 4
+#define BRI 5
/* mapping command names to cmd chars - see datasheet */
#define BLM_GO_RGB 0
@@ -299,13 +302,188 @@ static ssize_t store_test(struct device *dev, struct
device_attribute *attr,
static DEVICE_ATTR(test, S_IRUGO | S_IWUSR, show_test, store_test);
-/* TODO: HSB, fade, timeadj, script ... */
+
+static ssize_t show_runscript(struct device *dev, struct device_attribute
*attr,
+ char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE,
+ "#Write #id into runscript to start script #id (0-18) !#\n");
+}
+
+static ssize_t store_runscript(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client;
+ struct blinkm_data *data;
+ int ret;
+ u8 value;
+
+ client = to_i2c_client(dev);
+ data = i2c_get_clientdata(client);
+
+ ret = kstrtou8(buf, 10, &value);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: value too large!\n");
+ return ret;
+ }
+
+ if ( (value > 18) || (value < 0) ){
+ dev_err(dev, "BlinkM: value too large!\n");
+ return ret;
+ }
+
+ data->script_id = value;
+
+ ret = blinkm_transfer_hw(client, BLM_PLAY_SCRIPT);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(runscript, S_IRUGO | S_IWUSR, show_runscript,
store_runscript);
+
+
+static ssize_t show_stopscript(struct device *dev, struct device_attribute
*attr,
+ char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE,
+ "#Write into stopscript to stop (any) script !#\n");
+}
+
+static ssize_t store_stopscript(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t count)
+{
+
+ struct i2c_client *client;
+ struct blinkm_data *data;
+ int ret;
+
+ client = to_i2c_client(dev);
+ data = i2c_get_clientdata(client);
+
+ ret = blinkm_transfer_hw(client, BLM_STOP_SCRIPT);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+ data->next_red = 0x00;
+ data->next_green = 0x00;
+ data->next_blue = 0x00;
+ ret = blinkm_transfer_hw(client, BLM_GO_RGB);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+ data->time_adj = 0;
+ ret = blinkm_transfer_hw(client, BLM_SET_TIME_ADJ);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+
+ return count;
+}
+
+static DEVICE_ATTR(stopscript, S_IRUGO | S_IWUSR, show_stopscript,
store_stopscript);
+
+static ssize_t show_timeadj(struct device *dev, struct device_attribute
*attr,
+ char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE,
+ "#Write into timeadj to change time base. (-127 - 128) !#\n");
+}
+
+static ssize_t store_timeadj(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t count)
+{
+
+ struct i2c_client *client;
+ struct blinkm_data *data;
+ int ret;
+ s8 value;
+
+ client = to_i2c_client(dev);
+ data = i2c_get_clientdata(client);
+
+ ret = kstrtos8(buf, 10, &value);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: value invalid!\n");
+ return ret;
+ }
+
+ data->time_adj=value;
+
+ ret = blinkm_transfer_hw(client, BLM_SET_TIME_ADJ);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(timeadj, S_IRUGO | S_IWUSR, show_timeadj, store_timeadj);
+
+static ssize_t show_fadespeed(struct device *dev, struct device_attribute
*attr,
+ char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE,
+ "#Write into fadespeed to change time of fading. (1 - 255)
!#\n");
+}
+
+static ssize_t store_fadespeed(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t count)
+{
+
+ struct i2c_client *client;
+ struct blinkm_data *data;
+ int ret;
+ u8 value;
+
+ client = to_i2c_client(dev);
+ data = i2c_get_clientdata(client);
+
+ ret = kstrtou8(buf, 10, &value);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: value invalid!\n");
+ return ret;
+ }
+
+ if (value == 0) {
+ dev_err(dev, "BlinkM: 0 not allowed!\n");
+ return -1;
+ }
+
+ data->fade_speed = value;
+
+ ret = blinkm_transfer_hw(client, BLM_SET_FADE_SPEED);
+ if (ret < 0) {
+ dev_err(dev, "BlinkM: can't set RGB\n");
+ return ret;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(fadespeed, S_IRUGO | S_IWUSR, show_fadespeed,
store_fadespeed);
+
+/* TODO: HSB, fade, timeadj, ... */
static struct attribute *blinkm_attrs[] = {
&dev_attr_red.attr,
&dev_attr_green.attr,
&dev_attr_blue.attr,
&dev_attr_test.attr,
+ &dev_attr_runscript.attr,
+ &dev_attr_stopscript.attr,
+ &dev_attr_timeadj.attr,
+ &dev_attr_fadespeed.attr,
NULL,
};
@@ -422,7 +600,13 @@ static int blinkm_transfer_hw(struct i2c_client *client,
int cmd)
data->i2c_addr = data->args[0];
break;
case BLM_SET_TIME_ADJ:
+ data->args[0] = data->time_adj;
+ blinkm_write(client, cmd, data->args);
+ break;
case BLM_SET_FADE_SPEED:
+ data->args[0] = data->fade_speed;
+ blinkm_write(client, cmd, data->args);
+ break;
case BLM_READ_SCRIPT_LINE:
case BLM_WRITE_SCRIPT_LINE:
case BLM_SET_SCRIPT_LR:
@@ -654,6 +838,8 @@ static int blinkm_probe(struct i2c_client *client,
/* firmware version - use fake until we read real value
* (currently broken - BlinkM confused!) */
data->script_id = 0x01;
+ data->script_repeats = 0x00;
+ data->script_startline = 0x00;
data->i2c_client = client;
i2c_set_clientdata(client, data);
--
1.7.3.4
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