Thread (17 messages) 17 messages, 4 authors, 2014-03-04

Re: [PATCH 6/6] HID: sony: Turn on the LEDs by default.

From: Antonio Ospite <hidden>
Date: 2014-03-01 14:38:13

On Fri, 28 Feb 2014 22:59:01 -0500
Frank Praznik [off-list ref] wrote:
Initialize the controller LEDs to a default value that isn't all-off so that
there is some visible indicator that the controller is powered on and
connected.

On the Sixaxis LED number 1 is turned on.
I'd just NAK this.

Please start with all LEDs blinking just as the PS3 does, and let
userpsace decide what the controller number is.

Ciao,
   Antonio
One the DualShock 4 the light bar is set to blue at the lowest brightness.

Signed-off-by: Frank Praznik <redacted>
---

 Right now it just sets all of the controllers to the same value (LED 1 on the
 sixaxis and blue on the DS4) to indicate that the controller is connected and
 show the battery status set by the trigger in the previous patch. I'd like to
 be able to set the LEDs to the actual numerical controller value, but I'm not
 sure how to do that, other than the solution proposed in an xpad patch a few
 weeks ago where the minor number of the joydev device was retrieved.
As I said, I would just avoid doing that in the kernel.
quoted hunk ↗ jump to hunk
 drivers/hid/hid-sony.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 42 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index d7889ac..7912f0a 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1101,6 +1101,44 @@ static int dualshock4_set_operational_bt(struct hid_device *hdev)
 				HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
 }
 
+static void sixaxis_set_leds_from_devnum(int devnum, __u8 values[MAX_LEDS])
+{
+	static const __u8 sixaxis_leds[10][4] = {
+				{ 0x01, 0x00, 0x00, 0x00 },
+				{ 0x00, 0x01, 0x00, 0x00 },
+				{ 0x00, 0x00, 0x01, 0x00 },
+				{ 0x00, 0x00, 0x00, 0x01 },
+				{ 0x01, 0x00, 0x00, 0x01 },
+				{ 0x00, 0x01, 0x00, 0x01 },
+				{ 0x00, 0x00, 0x01, 0x01 },
+				{ 0x01, 0x00, 0x01, 0x01 },
+				{ 0x00, 0x01, 0x01, 0x01 },
+				{ 0x01, 0x01, 0x01, 0x01 }
+	};
+
+	BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));
+	devnum %= 10;
+	memcpy(values, sixaxis_leds[devnum], sizeof(sixaxis_leds[devnum]));
+}
+
+static void dualshock4_set_leds_from_devnum(int devnum, __u8 values[MAX_LEDS])
+{
+	/* The first 4 color/index entries match what the PS4 assigns */
+	static const __u8 color_code[7][3] = {
+			/* Blue   */	{ 0x00, 0x00, 0x01 },
+			/* Red	  */	{ 0x01, 0x00, 0x00 },
+			/* Green  */	{ 0x00, 0x01, 0x00 },
+			/* Pink   */	{ 0x02, 0x00, 0x01 },
+			/* Orange */	{ 0x02, 0x01, 0x00 },
+			/* Teal   */	{ 0x00, 0x01, 0x01 },
+			/* White  */	{ 0x01, 0x01, 0x01 }
+	};
+
+	BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));
+	devnum %= 7;
+	memcpy(values, color_code[devnum], sizeof(color_code[devnum]));
+}
+
 static void buzz_set_leds(struct hid_device *hdev, const __u8 *leds)
 {
 	struct list_head *report_list =
@@ -1278,7 +1316,7 @@ static int sony_leds_init(struct sony_sc *sc)
 	size_t name_len;
 	const char *name_fmt;
 	static const char * const color_str[] = { "red", "green", "blue" };
-	static const __u8 initial_values[MAX_LEDS] = { 0x00, 0x00, 0x00, 0x00 };
+	__u8 initial_values[MAX_LEDS] = { 0 };
 
 	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
 
@@ -1292,12 +1330,14 @@ static int sony_leds_init(struct sony_sc *sc)
 		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
 			return -ENODEV;
 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
+		dualshock4_set_leds_from_devnum(0, initial_values);
 		sc->led_count = 3;
 		max_brightness = 255;
 		use_colors = 1;
 		name_len = 0;
 		name_fmt = "%s:%s";
 	} else {
+		sixaxis_set_leds_from_devnum(0, initial_values);
 		sc->led_count = 4;
 		max_brightness = 1;
 		use_colors = 0;
@@ -1332,7 +1372,7 @@ static int sony_leds_init(struct sony_sc *sc)
 		else
 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
 		led->name = name;
-		led->brightness = 0;
+		led->brightness = initial_values[n];
 		led->max_brightness = max_brightness;
 		led->brightness_get = sony_led_get_brightness;
 		led->brightness_set = sony_led_set_brightness;
-- 
1.8.5.3

--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Antonio Ospite
http://ao2.it

A: Because it messes up the order in which people normally read text.
   See http://en.wikipedia.org/wiki/Posting_style
Q: Why is top-posting such a bad thing?
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help