This driver does 2 things:
- Apply the MULTI_INPUT quirk to create separate joypad device nodes
for each one of the 4 connectors.
- Rename the input devices so that their names are different, and allow
users to recognise which device corresponds to which physical port,
including the SNES (Mario Paint) Mouse.
Signed-off-by: Bastien Nocera <had...@hadess.net>
---
New in v5:
- Rebased
- Mask out SNES mouse's middle button
New in v4:
- Add guard around special Retrode driver, so it still works
as it used to if the driver isn't compiled in
New in v3:
- Use devm_kasprintf()
- Return -ENOMEM on failure
New in v2:
- Removed error paths in probe
- Added device to hid_have_special_driver
- Mark N64 ports as using the same device as the SNES joypads
drivers/hid/Kconfig | 8 ++++
drivers/hid/Makefile | 1 +
drivers/hid/hid-core.c | 3 ++
drivers/hid/hid-ids.h | 3 ++
drivers/hid/hid-retrode.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 115 insertions(+)
create mode 100644 drivers/hid/hid-retrode.c
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 687705c50794..d409435fc0c2 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -741,6 +741,14 @@ config HID_PRIMAX
Support for Primax devices that are not fully compliant with the
HID standard.
+config HID_RETRODE
+ tristate "Retrode"
+ depends on USB_HID
+ ---help---
+ Support for
+
+ * Retrode 2 cartridge and controller adapter
+
config HID_ROCCAT
tristate "Roccat device support"
depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index fef027bc7fa3..9ac08e7ed887 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -81,6 +81,7 @@ hid-picolcd-$(CONFIG_DEBUG_FS) +=
hid-picolcd_debugfs.o
obj-$(CONFIG_HID_PLANTRONICS) += hid-plantronics.o
obj-$(CONFIG_HID_PRIMAX) += hid-primax.o
+obj-$(CONFIG_HID_RETRODE) += hid-retrode.o
obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \
hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
hid-roccat-koneplus.o hid-roccat-konepure.o hid-roccat-kovaplus.o \
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 6e040692f1d8..49b9b4e8bfb4 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2151,6 +2151,9 @@ static const struct hid_device_id
hid_have_special_driver[] = {
#if IS_ENABLED(CONFIG_HID_PRODIKEYS)
{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS,
USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
#endif
+#if IS_ENABLED(CONFIG_HID_RETRODE)
+ { HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY,
USB_DEVICE_ID_RETRODE2) },
+#endif
#if IS_ENABLED(CONFIG_HID_RMI)
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_COVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 8ca1e8ce0af2..eabf33199fb2 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -383,6 +383,9 @@
#define USB_VENDOR_ID_FUTABA 0x0547
#define USB_DEVICE_ID_LED_DISPLAY 0x7000
+#define USB_VENDOR_ID_FUTURE_TECHNOLOGY 0x0403
+#define USB_DEVICE_ID_RETRODE2 0x97c1
+
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
diff --git a/drivers/hid/hid-retrode.c b/drivers/hid/hid-retrode.c
new file mode 100644
index 000000000000..30cc7ebb4d75
--- /dev/null
+++ b/drivers/hid/hid-retrode.c
@@ -0,0 +1,100 @@
+/*
+ * HID driver for Retrode 2 controller adapter and plug-in extensions
+ *
+ * Copyright (c) 2017 Bastien Nocera <had...@hadess.net>
+ */
+
+/*
+ * 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/hid.h>
+#include <linux/module.h>
+#include "hid-ids.h"
+
+#define CONTROLLER_NAME_BASE "Retrode"
+
+static int retrode_input_configured(struct hid_device *hdev,
+ struct hid_input *hi)
+{
+ struct hid_field *field = hi->report->field[0];
+ const char *suffix;
+ int number = 0;
+ char *name;
+
+ switch (field->report->id) {
+ case 0:
+ suffix = "SNES Mouse";
+ break;
+ case 1:
+ case 2:
+ suffix = "SNES / N64";
+ number = field->report->id;
+ break;
+ case 3:
+ case 4:
+ suffix = "Mega Drive";
+ number = field->report->id - 2;
+ break;
+ default:
+ hid_err(hdev, "Got unhandled report id %d\n",
field->report->id);
+ suffix = "Unknown";
+ }
+
+ if (number)
+ name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
+ "%s %s #%d", CONTROLLER_NAME_BASE,
+ suffix, number);
+ else
+ name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
+ "%s %s", CONTROLLER_NAME_BASE, suffix);
+
+ if (!name)
+ return -ENOMEM;
+
+ hi->input->name = name;
+
+ return 0;
+}
+
+static int retrode_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+
+ int ret;
+
+ /* Has no effect on the mouse device */
+ hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct hid_device_id retrode_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY,
USB_DEVICE_ID_RETRODE2) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, retrode_devices);
+
+static struct hid_driver retrode_driver = {
+ .name = "hid-retrode",
+ .id_table = retrode_devices,
+ .input_configured = retrode_input_configured,
+ .probe = retrode_probe,
+};
+
+module_hid_driver(retrode_driver);
+
+MODULE_LICENSE("GPL");
--
2.13.0
