Add support for the HID-compliant Delcom Visual Signal Indicator
generation 2 devices.
Successfully tested with part no 904000 from the family of these devices.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 3 ++
drivers/hid/hid-led.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 95 insertions(+)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index efd8f8c..0777ff2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1878,6 +1878,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_DELCOM, USB_DEVICE_ID_DELCOM_VISUAL_IND) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_WN) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 191c981..f1bd6f6 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -299,6 +299,9 @@
#define USB_VENDOR_ID_DEALEXTREAME 0x10c5
#define USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701 0x819a
+#define USB_VENDOR_ID_DELCOM 0x0fc5
+#define USB_DEVICE_ID_DELCOM_VISUAL_IND 0xb080
+
#define USB_VENDOR_ID_DELORME 0x1163
#define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
#define USB_DEVICE_ID_DELORME_EM_LT20 0x0200
diff --git a/drivers/hid/hid-led.c b/drivers/hid/hid-led.c
index fce2a03..0edd659 100644
--- a/drivers/hid/hid-led.c
+++ b/drivers/hid/hid-led.c
@@ -27,6 +27,7 @@ enum hidled_type {
RISO_KAGAKU,
DREAM_CHEEKY,
THINGM,
+ DELCOM,
};
static unsigned const char riso_kagaku_tbl[] = {
@@ -43,6 +44,28 @@ static unsigned const char riso_kagaku_tbl[] = {
#define RISO_KAGAKU_IX(r, g, b) riso_kagaku_tbl[((r)?1:0)+((g)?2:0)+((b)?4:0)]
+union delcom_packet {
+ __u8 data[8];
+ struct {
+ __u8 major_cmd;
+ __u8 minor_cmd;
+ __u8 data_lsb;
+ __u8 data_msb;
+ } tx;
+ struct {
+ __u8 cmd;
+ } rx;
+ struct {
+ __le16 family_code;
+ __le16 security_code;
+ __u8 fw_version;
+ } fw;
+};
+
+#define DELCOM_GREEN_LED 0
+#define DELCOM_RED_LED 1
+#define DELCOM_BLUE_LED 2
+
struct hidled_device;
struct hidled_rgb;
@@ -244,6 +267,61 @@ static int thingm_init(struct hidled_device *ldev)
return 0;
}
+static int delcom_set_pwm(struct hidled_led *led, __u8 lednum)
+{
+ union delcom_packet dp = { .tx.major_cmd = 101, .tx.minor_cmd = 34 };
+
+ dp.tx.data_lsb = lednum;
+ dp.tx.data_msb = led->cdev.brightness;
+
+ return hidled_send(led->rgb->ldev, dp.data);
+}
+
+static int delcom_write(struct led_classdev *cdev, enum led_brightness br)
+{
+ struct hidled_led *led = to_hidled_led(cdev);
+ union delcom_packet dp = { .tx.major_cmd = 101, .tx.minor_cmd = 12 };
+ int ret;
+
+ /*
+ * enable all LEDs
+ * We can't do this in the init function already because the device
+ * is internally reset later.
+ */
+ dp.tx.data_lsb = 1 << DELCOM_GREEN_LED | 1 << DELCOM_RED_LED |
+ 1 << DELCOM_BLUE_LED;
+ dp.tx.data_msb = 0;
+
+ ret = hidled_send(led->rgb->ldev, dp.data);
+ if (ret)
+ return ret;
+
+ ret = delcom_set_pwm(&led->rgb->green, DELCOM_GREEN_LED);
+ if (ret)
+ return ret;
+
+ ret = delcom_set_pwm(&led->rgb->red, DELCOM_RED_LED);
+ if (ret)
+ return ret;
+
+ return delcom_set_pwm(&led->rgb->blue, DELCOM_BLUE_LED);
+}
+
+static int delcom_init(struct hidled_device *ldev)
+{
+ union delcom_packet dp = { .rx.cmd = 104 };
+ int ret;
+
+ ret = hidled_recv(ldev, dp.data);
+ if (ret)
+ return ret;
+ /*
+ * Several Delcom devices share the same USB VID/PID
+ * Check for family id 2 for Visual Signal Indicator
+ */
+ return dp.fw.family_code == 2 ? 0 : -ENODEV;
+}
+
static const struct hidled_config hidled_configs[] = {
{
.type = RISO_KAGAKU,
@@ -277,6 +355,17 @@ static const struct hidled_config hidled_configs[] = {
.init = thingm_init,
.write = thingm_write,
},
+ {
+ .type = DELCOM,
+ .name = "Delcom Visual Signal Indicator G2",
+ .short_name = "delcom",
+ .max_brightness = 100,
+ .num_leds = 1,
+ .report_size = 8,
+ .report_type = RAW_REQUEST,
+ .init = delcom_init,
+ .write = delcom_write,
+ },
};
static int hidled_init_led(struct hidled_led *led, const char *color_name,
@@ -382,6 +471,8 @@ static const struct hid_device_id hidled_table[] = {
USB_DEVICE_ID_DREAM_CHEEKY_FA), .driver_data = DREAM_CHEEKY },
{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM,
USB_DEVICE_ID_BLINK1), .driver_data = THINGM },
+ { HID_USB_DEVICE(USB_VENDOR_ID_DELCOM,
+ USB_DEVICE_ID_DELCOM_VISUAL_IND), .driver_data = DELCOM },
{ }
};
MODULE_DEVICE_TABLE(hid, hidled_table);
--
2.9.0
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