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 <hadess@xxxxxxxxxx> --- drivers/hid/Kconfig | 8 ++++ drivers/hid/Makefile | 1 + drivers/hid/hid-ids.h | 3 ++ drivers/hid/hid-retrode.c | 105 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 117 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-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..2bcc507a1f2c --- /dev/null +++ b/drivers/hid/hid-retrode.c @@ -0,0 +1,105 @@ +/* + * HID driver for Retrode 2 controller adapter and plug-in extensions + * + * Copyright (c) 2017 Bastien Nocera <hadess@xxxxxxxxxx> + */ + +/* + * 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; + unsigned int len; + char *name; + + switch (field->report->id) { + case 0: + suffix = "SNES Mouse"; + break; + case 1: + case 2: + suffix = "SNES"; + 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"; + } + + len = strlen(CONTROLLER_NAME_BASE) + strlen(suffix) + + number ? 5 : 2; + name = devm_kzalloc(&hi->input->dev, len, GFP_KERNEL); + if (name) { + if (number) + sprintf(name, "%s %s #%d", CONTROLLER_NAME_BASE, + suffix, number); + else + sprintf(name, "%s %s", CONTROLLER_NAME_BASE, + suffix); + 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) { + hid_err(hdev, "parse failed\n"); + return ret; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) { + hid_err(hdev, "hw start failed\n"); + 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"); -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html