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Subject[PATCH] Support Jess/Saitek Color Rumble Pad
Date

Add support for another gamepad to the hid-pl driver.
The "color rumble pad P580" marketed using the "Saitek" brand in
Germany, and using a USB Vendor ID attributed to "Jess" seems to be
electronically identical to the 4-field variant of the "Green Asia"
gamepad.

The pad has been tested to support rumble strengths up to 255, not
just 127.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
---
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 3 +++
drivers/hid/hid-pl.c | 13 +++++++++++--
3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index eb2ee11..aad2627 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1599,6 +1599,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 4dfa605..3a49334 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -442,6 +442,9 @@
#define USB_VENDOR_ID_JESS 0x0c45
#define USB_DEVICE_ID_JESS_YUREX 0x1010

+#define USB_VENDOR_ID_JESS2 0x0f30
+#define USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD 0x0111
+
#define USB_VENDOR_ID_KBGEAR 0x084e
#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001

diff --git a/drivers/hid/hid-pl.c b/drivers/hid/hid-pl.c
index 47ed74c..1768414 100644
--- a/drivers/hid/hid-pl.c
+++ b/drivers/hid/hid-pl.c
@@ -14,6 +14,8 @@
* 0e8f:0003 "GASIA USB Gamepad"
* - another version of the König gamepad
*
+ * 0f30:0111 "Saitek Color Rumble Pad"
+ *
* Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
*/

@@ -51,6 +53,7 @@

struct plff_device {
struct hid_report *report;
+ s32 maxval;
s32 *strong;
s32 *weak;
};
@@ -66,8 +69,8 @@ static int hid_plff_play(struct input_dev *dev, void *data,
right = effect->u.rumble.weak_magnitude;
debug("called with 0x%04x 0x%04x", left, right);

- left = left * 0x7f / 0xffff;
- right = right * 0x7f / 0xffff;
+ left = left * plff->maxval / 0xffff;
+ right = right * plff->maxval / 0xffff;

*plff->strong = left;
*plff->weak = right;
@@ -87,6 +90,7 @@ static int plff_init(struct hid_device *hid)
struct list_head *report_ptr = report_list;
struct input_dev *dev;
int error;
+ s32 maxval;
s32 *strong;
s32 *weak;

@@ -123,6 +127,7 @@ static int plff_init(struct hid_device *hid)
return -ENODEV;
}

+ maxval = 0x7f;
if (report->field[0]->report_count >= 4) {
report->field[0]->value[0] = 0x00;
report->field[0]->value[1] = 0x00;
@@ -135,6 +140,8 @@ static int plff_init(struct hid_device *hid)
report->field[1]->value[0] = 0x00;
strong = &report->field[2]->value[0];
weak = &report->field[3]->value[0];
+ if (hid->vendor == USB_VENDOR_ID_JESS2)
+ maxval = 0xff;
debug("detected 4-field device");
} else {
hid_err(hid, "not enough fields or values\n");
@@ -158,6 +165,7 @@ static int plff_init(struct hid_device *hid)
plff->report = report;
plff->strong = strong;
plff->weak = weak;
+ plff->maxval = maxval;

*strong = 0x00;
*weak = 0x00;
@@ -207,6 +215,7 @@ static const struct hid_device_id pl_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR),
.driver_data = 1 }, /* Twin USB Joystick */
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), },
+ { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD), },
{ }
};
MODULE_DEVICE_TABLE(hid, pl_devices);
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