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* [PATCHv3 1/1] HID: add BETOP game controller force feedback support
@ 2014-11-27  1:46 Huang Bo
  2014-11-27  9:05 ` Jiri Kosina
  0 siblings, 1 reply; 6+ messages in thread
From: Huang Bo @ 2014-11-27  1:46 UTC (permalink / raw)
  To: Jiri Kosina; +Cc: linux-input, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 7633 bytes --]

From: Huang Bo <huangbobupt@163.com>

Adds force feedback support for BETOP USB game controllers.
These devices are mass produced in China.

Signed-off-by: Huang Bo <huangbobupt@163.com>
---
 drivers/hid/Kconfig       |   10 +++
 drivers/hid/Makefile      |    1 +
 drivers/hid/hid-betopff.c |  152 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-core.c    |    4 ++
 drivers/hid/hid-ids.h     |    5 ++
 5 files changed, 172 insertions(+)
 create mode 100644 drivers/hid/hid-betopff.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 4938bd3..3b4c47d 100755
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -146,6 +146,16 @@ config HID_BELKIN
     ---help---
     Support for Belkin Flip KVM and Wireless keyboard.
 
+config HID_BETOP_FF
+    tristate "Betop Production Inc. force feedback support"
+    depends on USB_HID
+    select INPUT_FF_MEMLESS
+    ---help---
+    Say Y here if you want to enable force feedback support for devices by
+    BETOP Production Ltd.
+    Currently the following devices are known to be supported:
+     - BETOP 2185 PC & BFM MODE
+
 config HID_CHERRY
     tristate "Cherry Cymotion keyboard" if EXPERT
     depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 4113999..edd4825 100755
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_HID_APPLE)        += hid-apple.o
 obj-$(CONFIG_HID_APPLEIR)    += hid-appleir.o
 obj-$(CONFIG_HID_AUREAL)        += hid-aureal.o
 obj-$(CONFIG_HID_BELKIN)    += hid-belkin.o
+obj-$(CONFIG_HID_BETOP_FF)    += hid-betopff.o
 obj-$(CONFIG_HID_CHERRY)    += hid-cherry.o
 obj-$(CONFIG_HID_CHICONY)    += hid-chicony.o
 obj-$(CONFIG_HID_CYPRESS)    += hid-cypress.o
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
new file mode 100644
index 0000000..94fbde2
--- /dev/null
+++ b/drivers/hid/hid-betopff.c
@@ -0,0 +1,152 @@
+/*
+ *  Force feedback support for Betop based devices
+ *
+ *  The devices are distributed under various names and the same USB device ID
+ *  can be used in both adapters and actual game controllers.
+ *
+ *  0x11c2:0x2208 "BTP2185 BFM mode Joystick"
+ *   - tested with BTP2185 BFM Mode.
+ *
+ *  0x11C0:0x5506 "BTP2185 PC mode Joystick"
+ *   - tested with BTP2185 PC Mode.
+ *
+ *  0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
+ *   - tested with BTP2185 PC Mode with another version.
+ *
+ *  0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
+ *   - tested with BTP2171s.
+ *  Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+struct betopff_device {
+    struct hid_report *report;
+};
+
+static int hid_betopff_play(struct input_dev *dev, void *data,
+             struct ff_effect *effect)
+{
+    struct hid_device *hid = input_get_drvdata(dev);
+    struct betopff_device *betopff = data;
+    __u16 left, right;
+
+    left = effect->u.rumble.strong_magnitude;
+    right = effect->u.rumble.weak_magnitude;
+
+    betopff->report->field[2]->value[0] = left / 256;
+    betopff->report->field[3]->value[0] = right / 256;
+
+    hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+    return 0;
+}
+
+static int betopff_init(struct hid_device *hid)
+{
+    struct betopff_device *betopff;
+    struct hid_report *report;
+    struct hid_input *hidinput =
+            list_first_entry(&hid->inputs, struct hid_input, list);
+    struct list_head *report_list =
+            &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+    struct input_dev *dev = hidinput->input;
+    int field_count = 0;
+    int error;
+    int i, j;
+
+    if (list_empty(report_list)) {
+        hid_err(hid, "no output reports found\n");
+        return -ENODEV;
+    }
+
+    report = list_first_entry(report_list, struct hid_report, list);
+    for (i = 0; i < report->maxfield; i++) {
+        for (j = 0; j < report->field[i]->report_count; j++) {
+            report->field[i]->value[j] = 0x00;
+            field_count++;
+        }
+    }
+
+    if (field_count < 4) {
+        hid_err(hid, "not enough fields in the report: %d\n",
+                field_count);
+        return -ENODEV;
+    }
+
+    betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
+    if (!betopff)
+        return -ENOMEM;
+
+    set_bit(FF_RUMBLE, dev->ffbit);
+
+    error = input_ff_create_memless(dev, betopff, hid_betopff_play);
+    if (error) {
+        kfree(betopff);
+        return error;
+    }
+
+    betopff->report = report;
+    hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+    hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
+
+    return 0;
+}
+
+static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+    int ret;
+
+    if (id->driver_data)
+        hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+
+    ret = hid_parse(hdev);
+    if (ret) {
+        hid_err(hdev, "parse failed\n");
+        goto err;
+    }
+
+    ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+    if (ret) {
+        hid_err(hdev, "hw start failed\n");
+        goto err;
+    }
+
+    betopff_init(hdev);
+
+    return 0;
+err:
+    return ret;
+}
+
+static const struct hid_device_id betop_devices[] = {
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
+    { }
+};
+MODULE_DEVICE_TABLE(hid, betop_devices);
+
+static struct hid_driver betop_driver = {
+    .name = "betop",
+    .id_table = betop_devices,
+    .probe = betop_probe,
+};
+module_hid_driver(betop_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a622590..e64ccfc 100755
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1642,6 +1642,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
     { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
     { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
     { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 161ee89..c432be9 100755
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -185,6 +185,11 @@
 #define USB_VENDOR_ID_BERKSHIRE        0x0c98
 #define USB_DEVICE_ID_BERKSHIRE_PCWD    0x1140
 
+#define USB_VENDOR_ID_BETOP_2185BFM    0x11c2
+#define USB_VENDOR_ID_BETOP_2185PC    0x11c0
+#define USB_VENDOR_ID_BETOP_2185V2PC    0x8380
+#define USB_VENDOR_ID_BETOP_2185V2BFM    0x20bc
+
 #define USB_VENDOR_ID_BTC        0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE    0x5578
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2    0x5577
-- 
1.7.9.5


[-- Attachment #2: 0001-HID-add-BETOP-game-controller-force-feedback-support.patch --]
[-- Type: text/x-patch, Size: 7388 bytes --]

>From 65290060fb6a13808454b8535f3e8cf4ad7d3a01 Mon Sep 17 00:00:00 2001
From: Huang Bo <huangbobupt@163.com>
Date: Wed, 26 Nov 2014 18:21:03 +0800
Subject: [PATCH] HID: add BETOP game controller force feedback support

Adds force feedback support for BETOP USB game controllers.
These devices are mass produced in China.

Signed-off-by: Huang Bo <huangbobupt@163.com>
---
 drivers/hid/Kconfig       |   10 +++
 drivers/hid/Makefile      |    1 +
 drivers/hid/hid-betopff.c |  152 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-core.c    |    4 ++
 drivers/hid/hid-ids.h     |    5 ++
 5 files changed, 172 insertions(+)
 create mode 100644 drivers/hid/hid-betopff.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 4938bd3..3b4c47d 100755
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -146,6 +146,16 @@ config HID_BELKIN
 	---help---
 	Support for Belkin Flip KVM and Wireless keyboard.
 
+config HID_BETOP_FF
+	tristate "Betop Production Inc. force feedback support"
+	depends on USB_HID
+	select INPUT_FF_MEMLESS
+	---help---
+	Say Y here if you want to enable force feedback support for devices by
+	BETOP Production Ltd.
+	Currently the following devices are known to be supported:
+	 - BETOP 2185 PC & BFM MODE
+
 config HID_CHERRY
 	tristate "Cherry Cymotion keyboard" if EXPERT
 	depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 4113999..edd4825 100755
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_HID_APPLE)		+= hid-apple.o
 obj-$(CONFIG_HID_APPLEIR)	+= hid-appleir.o
 obj-$(CONFIG_HID_AUREAL)        += hid-aureal.o
 obj-$(CONFIG_HID_BELKIN)	+= hid-belkin.o
+obj-$(CONFIG_HID_BETOP_FF)	+= hid-betopff.o
 obj-$(CONFIG_HID_CHERRY)	+= hid-cherry.o
 obj-$(CONFIG_HID_CHICONY)	+= hid-chicony.o
 obj-$(CONFIG_HID_CYPRESS)	+= hid-cypress.o
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
new file mode 100644
index 0000000..94fbde2
--- /dev/null
+++ b/drivers/hid/hid-betopff.c
@@ -0,0 +1,152 @@
+/*
+ *  Force feedback support for Betop based devices
+ *
+ *  The devices are distributed under various names and the same USB device ID
+ *  can be used in both adapters and actual game controllers.
+ *
+ *  0x11c2:0x2208 "BTP2185 BFM mode Joystick"
+ *   - tested with BTP2185 BFM Mode.
+ *
+ *  0x11C0:0x5506 "BTP2185 PC mode Joystick"
+ *   - tested with BTP2185 PC Mode.
+ *
+ *  0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
+ *   - tested with BTP2185 PC Mode with another version.
+ *
+ *  0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
+ *   - tested with BTP2171s.
+ *  Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+struct betopff_device {
+	struct hid_report *report;
+};
+
+static int hid_betopff_play(struct input_dev *dev, void *data,
+			 struct ff_effect *effect)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct betopff_device *betopff = data;
+	__u16 left, right;
+
+	left = effect->u.rumble.strong_magnitude;
+	right = effect->u.rumble.weak_magnitude;
+
+	betopff->report->field[2]->value[0] = left / 256;
+	betopff->report->field[3]->value[0] = right / 256;
+
+	hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+	return 0;
+}
+
+static int betopff_init(struct hid_device *hid)
+{
+	struct betopff_device *betopff;
+	struct hid_report *report;
+	struct hid_input *hidinput =
+			list_first_entry(&hid->inputs, struct hid_input, list);
+	struct list_head *report_list =
+			&hid->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct input_dev *dev = hidinput->input;
+	int field_count = 0;
+	int error;
+	int i, j;
+
+	if (list_empty(report_list)) {
+		hid_err(hid, "no output reports found\n");
+		return -ENODEV;
+	}
+
+	report = list_first_entry(report_list, struct hid_report, list);
+	for (i = 0; i < report->maxfield; i++) {
+		for (j = 0; j < report->field[i]->report_count; j++) {
+			report->field[i]->value[j] = 0x00;
+			field_count++;
+		}
+	}
+
+	if (field_count < 4) {
+		hid_err(hid, "not enough fields in the report: %d\n",
+				field_count);
+		return -ENODEV;
+	}
+
+	betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
+	if (!betopff)
+		return -ENOMEM;
+
+	set_bit(FF_RUMBLE, dev->ffbit);
+
+	error = input_ff_create_memless(dev, betopff, hid_betopff_play);
+	if (error) {
+		kfree(betopff);
+		return error;
+	}
+
+	betopff->report = report;
+	hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+	hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
+
+	return 0;
+}
+
+static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+
+	if (id->driver_data)
+		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "parse failed\n");
+		goto err;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+	if (ret) {
+		hid_err(hdev, "hw start failed\n");
+		goto err;
+	}
+
+	betopff_init(hdev);
+
+	return 0;
+err:
+	return ret;
+}
+
+static const struct hid_device_id betop_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, betop_devices);
+
+static struct hid_driver betop_driver = {
+	.name = "betop",
+	.id_table = betop_devices,
+	.probe = betop_probe,
+};
+module_hid_driver(betop_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a622590..e64ccfc 100755
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1642,6 +1642,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 161ee89..c432be9 100755
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -185,6 +185,11 @@
 #define USB_VENDOR_ID_BERKSHIRE		0x0c98
 #define USB_DEVICE_ID_BERKSHIRE_PCWD	0x1140
 
+#define USB_VENDOR_ID_BETOP_2185BFM	0x11c2
+#define USB_VENDOR_ID_BETOP_2185PC	0x11c0
+#define USB_VENDOR_ID_BETOP_2185V2PC	0x8380
+#define USB_VENDOR_ID_BETOP_2185V2BFM	0x20bc
+
 #define USB_VENDOR_ID_BTC		0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE	0x5578
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2	0x5577
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCHv3 1/1] HID: add BETOP game controller force feedback support
  2014-11-27  1:46 [PATCHv3 1/1] HID: add BETOP game controller force feedback support Huang Bo
@ 2014-11-27  9:05 ` Jiri Kosina
  2014-11-28  1:20   ` Huang Bo
  0 siblings, 1 reply; 6+ messages in thread
From: Jiri Kosina @ 2014-11-27  9:05 UTC (permalink / raw)
  To: Huang Bo; +Cc: linux-input, linux-kernel

On Thu, 27 Nov 2014, Huang Bo wrote:

> From: Huang Bo <huangbobupt@163.com>
> 
> Adds force feedback support for BETOP USB game controllers.
> These devices are mass produced in China.

Thanks. We are almost there, except ...

[ ... snip ... ]
> +static int betopff_init(struct hid_device *hid)
> +{
> +    struct betopff_device *betopff;
> +    struct hid_report *report;
> +    struct hid_input *hidinput =
> +            list_first_entry(&hid->inputs, struct hid_input, list);
> +    struct list_head *report_list =
> +            &hid->report_enum[HID_OUTPUT_REPORT].report_list;
> +    struct input_dev *dev = hidinput->input;
> +    int field_count = 0;
> +    int error;
> +    int i, j;
> +
> +    if (list_empty(report_list)) {
> +        hid_err(hid, "no output reports found\n");
> +        return -ENODEV;
> +    }
> +
> +    report = list_first_entry(report_list, struct hid_report, list);
> +    for (i = 0; i < report->maxfield; i++) {
> +        for (j = 0; j < report->field[i]->report_count; j++) {
> +            report->field[i]->value[j] = 0x00;

I asked for a comment to be added here why you are zeroing those out.

Thanks,

-- 
Jiri Kosina
SUSE Labs

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCHv3 1/1] HID: add BETOP game controller force feedback support
  2014-11-27  9:05 ` Jiri Kosina
@ 2014-11-28  1:20   ` Huang Bo
  2014-12-01 20:11     ` Jiri Kosina
  0 siblings, 1 reply; 6+ messages in thread
From: Huang Bo @ 2014-11-28  1:20 UTC (permalink / raw)
  To: Jiri Kosina; +Cc: linux-input, linux-kernel

On 11/27/2014 05:05 PM, Jiri Kosina wrote:
> except ...
thanks firstly.
1. tested the BETOP2185 gamecontroller, it really not need it.
2. check with engineers of Betop, they design only one report descriptor.

so I modify it.



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCHv3 1/1] HID: add BETOP game controller force feedback support
  2014-11-28  1:20   ` Huang Bo
@ 2014-12-01 20:11     ` Jiri Kosina
  2014-12-02  5:58       ` [PATCHv4 " Huang Bo
  0 siblings, 1 reply; 6+ messages in thread
From: Jiri Kosina @ 2014-12-01 20:11 UTC (permalink / raw)
  To: Huang Bo; +Cc: linux-input, linux-kernel

On Fri, 28 Nov 2014, Huang Bo wrote:

> On 11/27/2014 05:05 PM, Jiri Kosina wrote:
> > except ...
> thanks firstly.
> 1. tested the BETOP2185 gamecontroller, it really not need it.
> 2. check with engineers of Betop, they design only one report descriptor.
> 
> so I modify it.

Thanks, but please put the comment into the code (jus before you are 
zeroing the fields), so that it's immediately obvious to everybody who is 
reading the code.

Other than that, I am OK with the patch and will be applying it once you 
resend it with the comments added.

Thanks,

-- 
Jiri Kosina
SUSE Labs

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCHv4 1/1] HID: add BETOP game controller force feedback support
  2014-12-01 20:11     ` Jiri Kosina
@ 2014-12-02  5:58       ` Huang Bo
  2014-12-22 13:43         ` Jiri Kosina
  0 siblings, 1 reply; 6+ messages in thread
From: Huang Bo @ 2014-12-02  5:58 UTC (permalink / raw)
  To: Jiri Kosina; +Cc: linux-input, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 8560 bytes --]

On 12/02/2014 04:11 AM, Jiri Kosina wrote:
> On Fri, 28 Nov 2014, Huang Bo wrote:
>
>> On 11/27/2014 05:05 PM, Jiri Kosina wrote:
>>> except ...
>> thanks firstly.
>> 1. tested the BETOP2185 gamecontroller, it really not need it.
>> 2. check with engineers of Betop, they design only one report descriptor.
>>
>> so I modify it.
> Thanks, but please put the comment into the code (jus before you are 
> zeroing the fields), so that it's immediately obvious to everybody who is 
> reading the code.
>
> Other than that, I am OK with the patch and will be applying it once you 
> resend it with the comments added.
>
> Thanks,
>
From: Huang Bo <huangbobupt@163.com>

Adds force feedback support for BETOP USB game controllers.
These devices are mass produced in China.

Signed-off-by: Huang Bo <huangbobupt@163.com>
---
 drivers/hid/Kconfig       |   10 +++
 drivers/hid/Makefile      |    1 +
 drivers/hid/hid-betopff.c |  160 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-core.c    |    4 ++
 drivers/hid/hid-ids.h     |    5 ++
 5 files changed, 180 insertions(+)
 create mode 100644 drivers/hid/hid-betopff.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 4938bd3..3b4c47d 100755
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -146,6 +146,16 @@ config HID_BELKIN
     ---help---
     Support for Belkin Flip KVM and Wireless keyboard.
 
+config HID_BETOP_FF
+    tristate "Betop Production Inc. force feedback support"
+    depends on USB_HID
+    select INPUT_FF_MEMLESS
+    ---help---
+    Say Y here if you want to enable force feedback support for devices by
+    BETOP Production Ltd.
+    Currently the following devices are known to be supported:
+     - BETOP 2185 PC & BFM MODE
+
 config HID_CHERRY
     tristate "Cherry Cymotion keyboard" if EXPERT
     depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 4113999..edd4825 100755
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_HID_APPLE)        += hid-apple.o
 obj-$(CONFIG_HID_APPLEIR)    += hid-appleir.o
 obj-$(CONFIG_HID_AUREAL)        += hid-aureal.o
 obj-$(CONFIG_HID_BELKIN)    += hid-belkin.o
+obj-$(CONFIG_HID_BETOP_FF)    += hid-betopff.o
 obj-$(CONFIG_HID_CHERRY)    += hid-cherry.o
 obj-$(CONFIG_HID_CHICONY)    += hid-chicony.o
 obj-$(CONFIG_HID_CYPRESS)    += hid-cypress.o
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
new file mode 100644
index 0000000..69cfc8d
--- /dev/null
+++ b/drivers/hid/hid-betopff.c
@@ -0,0 +1,160 @@
+/*
+ *  Force feedback support for Betop based devices
+ *
+ *  The devices are distributed under various names and the same USB device ID
+ *  can be used in both adapters and actual game controllers.
+ *
+ *  0x11c2:0x2208 "BTP2185 BFM mode Joystick"
+ *   - tested with BTP2185 BFM Mode.
+ *
+ *  0x11C0:0x5506 "BTP2185 PC mode Joystick"
+ *   - tested with BTP2185 PC Mode.
+ *
+ *  0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
+ *   - tested with BTP2185 PC Mode with another version.
+ *
+ *  0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
+ *   - tested with BTP2171s.
+ *  Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+struct betopff_device {
+    struct hid_report *report;
+};
+
+static int hid_betopff_play(struct input_dev *dev, void *data,
+             struct ff_effect *effect)
+{
+    struct hid_device *hid = input_get_drvdata(dev);
+    struct betopff_device *betopff = data;
+    __u16 left, right;
+
+    left = effect->u.rumble.strong_magnitude;
+    right = effect->u.rumble.weak_magnitude;
+
+    betopff->report->field[2]->value[0] = left / 256;
+    betopff->report->field[3]->value[0] = right / 256;
+
+    hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+    return 0;
+}
+
+static int betopff_init(struct hid_device *hid)
+{
+    struct betopff_device *betopff;
+    struct hid_report *report;
+    struct hid_input *hidinput =
+            list_first_entry(&hid->inputs, struct hid_input, list);
+    struct list_head *report_list =
+            &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+    struct input_dev *dev = hidinput->input;
+    int field_count = 0;
+    int error;
+    int i, j;
+
+    if (list_empty(report_list)) {
+        hid_err(hid, "no output reports found\n");
+        return -ENODEV;
+    }
+
+    report = list_first_entry(report_list, struct hid_report, list);
+    /*
+     * Actually there are 4 fields for 4 Bytes as below:
+     * -----------------------------------------
+     * Byte0  Byte1  Byte2      Byte3
+     * 0x00   0x00   left_motor right_motor
+     * -----------------------------------------
+     * Do init them with default value.
+     */
+    for (i = 0; i < report->maxfield; i++) {
+        for (j = 0; j < report->field[i]->report_count; j++) {
+            report->field[i]->value[j] = 0x00;
+            field_count++;
+        }
+    }
+
+    if (field_count < 4) {
+        hid_err(hid, "not enough fields in the report: %d\n",
+                field_count);
+        return -ENODEV;
+    }
+
+    betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
+    if (!betopff)
+        return -ENOMEM;
+
+    set_bit(FF_RUMBLE, dev->ffbit);
+
+    error = input_ff_create_memless(dev, betopff, hid_betopff_play);
+    if (error) {
+        kfree(betopff);
+        return error;
+    }
+
+    betopff->report = report;
+    hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+    hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
+
+    return 0;
+}
+
+static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+    int ret;
+
+    if (id->driver_data)
+        hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+
+    ret = hid_parse(hdev);
+    if (ret) {
+        hid_err(hdev, "parse failed\n");
+        goto err;
+    }
+
+    ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+    if (ret) {
+        hid_err(hdev, "hw start failed\n");
+        goto err;
+    }
+
+    betopff_init(hdev);
+
+    return 0;
+err:
+    return ret;
+}
+
+static const struct hid_device_id betop_devices[] = {
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
+    { }
+};
+MODULE_DEVICE_TABLE(hid, betop_devices);
+
+static struct hid_driver betop_driver = {
+    .name = "betop",
+    .id_table = betop_devices,
+    .probe = betop_probe,
+};
+module_hid_driver(betop_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a622590..e64ccfc 100755
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1642,6 +1642,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
     { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
     { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+    { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
     { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
     { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 161ee89..c432be9 100755
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -185,6 +185,11 @@
 #define USB_VENDOR_ID_BERKSHIRE        0x0c98
 #define USB_DEVICE_ID_BERKSHIRE_PCWD    0x1140
 
+#define USB_VENDOR_ID_BETOP_2185BFM    0x11c2
+#define USB_VENDOR_ID_BETOP_2185PC    0x11c0
+#define USB_VENDOR_ID_BETOP_2185V2PC    0x8380
+#define USB_VENDOR_ID_BETOP_2185V2BFM    0x20bc
+
 #define USB_VENDOR_ID_BTC        0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE    0x5578
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2    0x5577
-- 
1.7.9.5


[-- Attachment #2: 0001-HID-add-BETOP-game-controller-force-feedback-support.patch --]
[-- Type: text/x-patch, Size: 7661 bytes --]

>From b362f0b16c2376103237931307f927eca32219b3 Mon Sep 17 00:00:00 2001
From: Huang Bo <huangbobupt@163.com>
Date: Wed, 26 Nov 2014 18:21:03 +0800
Subject: [PATCH] HID: add BETOP game controller force feedback support

Adds force feedback support for BETOP USB game controllers.
These devices are mass produced in China.

Signed-off-by: Huang Bo <huangbobupt@163.com>
---
 drivers/hid/Kconfig       |   10 +++
 drivers/hid/Makefile      |    1 +
 drivers/hid/hid-betopff.c |  160 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-core.c    |    4 ++
 drivers/hid/hid-ids.h     |    5 ++
 5 files changed, 180 insertions(+)
 create mode 100644 drivers/hid/hid-betopff.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 4938bd3..3b4c47d 100755
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -146,6 +146,16 @@ config HID_BELKIN
 	---help---
 	Support for Belkin Flip KVM and Wireless keyboard.
 
+config HID_BETOP_FF
+	tristate "Betop Production Inc. force feedback support"
+	depends on USB_HID
+	select INPUT_FF_MEMLESS
+	---help---
+	Say Y here if you want to enable force feedback support for devices by
+	BETOP Production Ltd.
+	Currently the following devices are known to be supported:
+	 - BETOP 2185 PC & BFM MODE
+
 config HID_CHERRY
 	tristate "Cherry Cymotion keyboard" if EXPERT
 	depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 4113999..edd4825 100755
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_HID_APPLE)		+= hid-apple.o
 obj-$(CONFIG_HID_APPLEIR)	+= hid-appleir.o
 obj-$(CONFIG_HID_AUREAL)        += hid-aureal.o
 obj-$(CONFIG_HID_BELKIN)	+= hid-belkin.o
+obj-$(CONFIG_HID_BETOP_FF)	+= hid-betopff.o
 obj-$(CONFIG_HID_CHERRY)	+= hid-cherry.o
 obj-$(CONFIG_HID_CHICONY)	+= hid-chicony.o
 obj-$(CONFIG_HID_CYPRESS)	+= hid-cypress.o
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
new file mode 100644
index 0000000..69cfc8d
--- /dev/null
+++ b/drivers/hid/hid-betopff.c
@@ -0,0 +1,160 @@
+/*
+ *  Force feedback support for Betop based devices
+ *
+ *  The devices are distributed under various names and the same USB device ID
+ *  can be used in both adapters and actual game controllers.
+ *
+ *  0x11c2:0x2208 "BTP2185 BFM mode Joystick"
+ *   - tested with BTP2185 BFM Mode.
+ *
+ *  0x11C0:0x5506 "BTP2185 PC mode Joystick"
+ *   - tested with BTP2185 PC Mode.
+ *
+ *  0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
+ *   - tested with BTP2185 PC Mode with another version.
+ *
+ *  0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
+ *   - tested with BTP2171s.
+ *  Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+struct betopff_device {
+	struct hid_report *report;
+};
+
+static int hid_betopff_play(struct input_dev *dev, void *data,
+			 struct ff_effect *effect)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct betopff_device *betopff = data;
+	__u16 left, right;
+
+	left = effect->u.rumble.strong_magnitude;
+	right = effect->u.rumble.weak_magnitude;
+
+	betopff->report->field[2]->value[0] = left / 256;
+	betopff->report->field[3]->value[0] = right / 256;
+
+	hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+	return 0;
+}
+
+static int betopff_init(struct hid_device *hid)
+{
+	struct betopff_device *betopff;
+	struct hid_report *report;
+	struct hid_input *hidinput =
+			list_first_entry(&hid->inputs, struct hid_input, list);
+	struct list_head *report_list =
+			&hid->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct input_dev *dev = hidinput->input;
+	int field_count = 0;
+	int error;
+	int i, j;
+
+	if (list_empty(report_list)) {
+		hid_err(hid, "no output reports found\n");
+		return -ENODEV;
+	}
+
+	report = list_first_entry(report_list, struct hid_report, list);
+	/*
+	 * Actually there are 4 fields for 4 Bytes as below:
+	 * -----------------------------------------
+	 * Byte0  Byte1  Byte2	  Byte3
+	 * 0x00   0x00   left_motor right_motor
+	 * -----------------------------------------
+	 * Do init them with default value.
+	 */
+	for (i = 0; i < report->maxfield; i++) {
+		for (j = 0; j < report->field[i]->report_count; j++) {
+			report->field[i]->value[j] = 0x00;
+			field_count++;
+		}
+	}
+
+	if (field_count < 4) {
+		hid_err(hid, "not enough fields in the report: %d\n",
+				field_count);
+		return -ENODEV;
+	}
+
+	betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
+	if (!betopff)
+		return -ENOMEM;
+
+	set_bit(FF_RUMBLE, dev->ffbit);
+
+	error = input_ff_create_memless(dev, betopff, hid_betopff_play);
+	if (error) {
+		kfree(betopff);
+		return error;
+	}
+
+	betopff->report = report;
+	hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
+
+	hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
+
+	return 0;
+}
+
+static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+
+	if (id->driver_data)
+		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "parse failed\n");
+		goto err;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+	if (ret) {
+		hid_err(hdev, "hw start failed\n");
+		goto err;
+	}
+
+	betopff_init(hdev);
+
+	return 0;
+err:
+	return ret;
+}
+
+static const struct hid_device_id betop_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, betop_devices);
+
+static struct hid_driver betop_driver = {
+	.name = "betop",
+	.id_table = betop_devices,
+	.probe = betop_probe,
+};
+module_hid_driver(betop_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a622590..e64ccfc 100755
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1642,6 +1642,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 161ee89..c432be9 100755
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -185,6 +185,11 @@
 #define USB_VENDOR_ID_BERKSHIRE		0x0c98
 #define USB_DEVICE_ID_BERKSHIRE_PCWD	0x1140
 
+#define USB_VENDOR_ID_BETOP_2185BFM	0x11c2
+#define USB_VENDOR_ID_BETOP_2185PC	0x11c0
+#define USB_VENDOR_ID_BETOP_2185V2PC	0x8380
+#define USB_VENDOR_ID_BETOP_2185V2BFM	0x20bc
+
 #define USB_VENDOR_ID_BTC		0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE	0x5578
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2	0x5577
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCHv4 1/1] HID: add BETOP game controller force feedback support
  2014-12-02  5:58       ` [PATCHv4 " Huang Bo
@ 2014-12-22 13:43         ` Jiri Kosina
  0 siblings, 0 replies; 6+ messages in thread
From: Jiri Kosina @ 2014-12-22 13:43 UTC (permalink / raw)
  To: Huang Bo; +Cc: linux-input, linux-kernel

On Tue, 2 Dec 2014, Huang Bo wrote:

> From: Huang Bo <huangbobupt@163.com>
> 
> Adds force feedback support for BETOP USB game controllers.
> These devices are mass produced in China.
> 
> Signed-off-by: Huang Bo <huangbobupt@163.com>

Applied to for-3.20/betop.

-- 
Jiri Kosina
SUSE Labs

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-12-22 13:44 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-11-27  1:46 [PATCHv3 1/1] HID: add BETOP game controller force feedback support Huang Bo
2014-11-27  9:05 ` Jiri Kosina
2014-11-28  1:20   ` Huang Bo
2014-12-01 20:11     ` Jiri Kosina
2014-12-02  5:58       ` [PATCHv4 " Huang Bo
2014-12-22 13:43         ` Jiri Kosina

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