lkml.org 
[lkml]   [2008]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Subject[PATCH] input: add support for SEGA Dreamcast controller as joystick
    From
    Date
    Use a Maple controller as a joystick device.

    Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
    ---
    diff -ruN a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
    --- a/drivers/input/joystick/Kconfig 2008-05-18 20:04:42.000000000 +0100
    +++ b/drivers/input/joystick/Kconfig 2008-05-18 19:53:42.000000000 +0100
    @@ -294,4 +294,17 @@
    This option enables support for the LED which surrounds the Big X on
    XBox 360 controller.

    +config JOYSTICK_MAPLE
    + tristate "Dreamcast control pad"
    + depends on SH_DREAMCAST
    + select MAPLE
    + help
    + Say Y here if you have a SEGA Dreamcast and want to use your
    + controller.
    +
    + Most Dreamcast users will say Y.
    +
    + To compile this as a module choose M here: the
    + module will be called maplecontrol.
    +
    endif
    diff -ruN a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
    --- a/drivers/input/joystick/Makefile 2008-05-18 20:04:42.000000000 +0100
    +++ b/drivers/input/joystick/Makefile 2008-05-18 19:53:42.000000000 +0100
    @@ -19,6 +19,7 @@
    obj-$(CONFIG_JOYSTICK_INTERACT) += interact.o
    obj-$(CONFIG_JOYSTICK_JOYDUMP) += joydump.o
    obj-$(CONFIG_JOYSTICK_MAGELLAN) += magellan.o
    +obj-$(CONFIG_JOYSTICK_MAPLE) += maplecontrol.o
    obj-$(CONFIG_JOYSTICK_SIDEWINDER) += sidewinder.o
    obj-$(CONFIG_JOYSTICK_SPACEBALL) += spaceball.o
    obj-$(CONFIG_JOYSTICK_SPACEORB) += spaceorb.o
    diff -ruN a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
    --- a/drivers/input/joystick/maplecontrol.c 1970-01-01 01:00:00.000000000 +0100
    +++ b/drivers/input/joystick/maplecontrol.c 2008-05-18 19:53:42.000000000 +0100
    @@ -0,0 +1,217 @@
    +/*
    + * SEGA Dreamcast controller driver
    + * Based on drivers/usb/iforce.c
    + *
    + * Copyright Yaegashi Takeshi, 2001
    + * Porting to 2.6 by Adrian McMenamin, copyright 2008
    + */
    +
    +#include <linux/kernel.h>
    +#include <linux/slab.h>
    +#include <linux/input.h>
    +#include <linux/module.h>
    +#include <linux/init.h>
    +#include <linux/timer.h>
    +#include <linux/maple.h>
    +#include <asm/mach/maple.h>
    +
    +MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>");
    +MODULE_DESCRIPTION("SEGA Dreamcast controller driver");
    +MODULE_LICENSE("GPL");
    +
    +struct dc_pad {
    + struct input_dev *dev;
    + struct maple_device *mdev;
    +};
    +
    +static void dc_pad_callback(struct mapleq *mq)
    +{
    + unsigned short buttons;
    + struct maple_device *mapledev = mq->dev;
    + struct dc_pad *pad = mapledev->private_data;
    + struct input_dev *dev = pad->dev;
    + unsigned char *res = mq->recvbuf;
    +
    + buttons = ~cpu_to_le16(*(unsigned short *)(res + 8));
    +
    + input_report_abs(dev, ABS_HAT0Y,
    + (buttons & 0x0010 ? -1:0) + (buttons & 0x0020 ? 1:0));
    + input_report_abs(dev, ABS_HAT0X,
    + (buttons & 0x0040 ? -1:0) + (buttons & 0x0080 ? 1:0));
    + input_report_abs(dev, ABS_HAT1Y,
    + (buttons & 0x1000 ? -1:0) + (buttons & 0x2000 ? 1:0));
    + input_report_abs(dev, ABS_HAT1X,
    + (buttons & 0x4000 ? -1:0) + (buttons & 0x8000 ? 1:0));
    +
    + input_report_key(dev, BTN_C, buttons & 0x0001);
    + input_report_key(dev, BTN_B, buttons & 0x0002);
    + input_report_key(dev, BTN_A, buttons & 0x0004);
    + input_report_key(dev, BTN_START, buttons & 0x0008);
    + input_report_key(dev, BTN_Z, buttons & 0x0100);
    + input_report_key(dev, BTN_Y, buttons & 0x0200);
    + input_report_key(dev, BTN_X, buttons & 0x0400);
    + input_report_key(dev, BTN_SELECT, buttons & 0x0800);
    +
    + input_report_abs(dev, ABS_GAS, res[10]);
    + input_report_abs(dev, ABS_BRAKE, res[11]);
    + input_report_abs(dev, ABS_X, res[12]);
    + input_report_abs(dev, ABS_Y, res[13]);
    + input_report_abs(dev, ABS_RX, res[14]);
    + input_report_abs(dev, ABS_RY, res[15]);
    +}
    +
    +static void dc_pad_disconnect(struct maple_device *mdev)
    +{
    + struct dc_pad *pad = mdev->private_data;
    +
    + mdev->callback = NULL;
    + input_unregister_device(pad->dev);
    + kfree(pad);
    +}
    +
    +static int dc_pad_open(struct input_dev *dev)
    +{
    + struct dc_pad *pad;
    +
    + pad = dev->dev.platform_data;
    + maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
    + MAPLE_FUNC_CONTROLLER);
    + return 0;
    +}
    +
    +static void dc_pad_close(struct input_dev *dev)
    +{
    + struct dc_pad *pad;
    +
    + pad = dev->dev.platform_data;
    + maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
    + MAPLE_FUNC_CONTROLLER);
    +}
    +
    +static int dc_pad_connect(struct maple_device *mdev)
    +{
    + int i, error;
    + unsigned long data = be32_to_cpu(mdev->devinfo.function_data[0]);
    + struct dc_pad *pad;
    + struct input_dev *dev;
    +
    + const short btn_bit[32] = {
    + BTN_C, BTN_B, BTN_A, BTN_START, -1, -1, -1, -1,
    + BTN_Z, BTN_Y, BTN_X, BTN_SELECT, -1, -1, -1, -1,
    + -1, -1, -1, -1, -1, -1, -1, -1,
    + -1, -1, -1, -1, -1, -1, -1, -1,
    + };
    +
    + const short abs_bit[32] = {
    + -1, -1, -1, -1, ABS_HAT0Y, ABS_HAT0Y, ABS_HAT0X, ABS_HAT0X,
    + -1, -1, -1, -1, ABS_HAT1Y, ABS_HAT1Y, ABS_HAT1X, ABS_HAT1X,
    + ABS_GAS, ABS_BRAKE, ABS_X, ABS_Y, ABS_RX, ABS_RY, -1, -1,
    + -1, -1, -1, -1, -1, -1, -1, -1,
    + };
    +
    + pad = kzalloc(sizeof(struct dc_pad), GFP_KERNEL);
    + if (!pad){
    + error = ENOMEM;
    + goto fail_nomem_1;
    + }
    +
    + dev = input_allocate_device();
    + if (!dev) {
    + error = ENOMEM;
    + goto fail_nomem_2;
    + }
    +
    + pad->dev = dev;
    + pad->mdev = mdev;
    + mdev->private_data = pad;
    + dev->open = dc_pad_open;
    + dev->close = dc_pad_close;
    +
    + for (i = 0; i < 32; i++)
    + if (data & (1<<i) && btn_bit[i] >= 0)
    + dev->keybit[BIT_WORD(BTN_JOYSTICK)] |= BIT_MASK(btn_bit[i]);
    +
    + if (dev->keybit[BTN_JOYSTICK/32])
    + dev->evbit[0] |= BIT_MASK(EV_KEY);
    +
    + for (i = 0; i < 32; i++)
    + if (data & (1<<i) && abs_bit[i] >= 0)
    + dev->absbit[0] |= BIT_MASK(abs_bit[i]);
    +
    + if (dev->absbit[0])
    + dev->evbit[0] |= BIT_MASK(EV_ABS);
    +
    + for (i = ABS_X; i <= ABS_BRAKE; i++)
    + input_set_abs_params(dev, i, 0, 255, 0, 0);
    +
    + for (i = ABS_HAT0X; i <= ABS_HAT3Y; i++)
    + input_set_abs_params(dev, i, 1, -1, 0, 0);
    +
    + dev->dev.platform_data = pad;
    + dev->event = NULL;
    + dev->dev.parent = &mdev->dev;
    + dev->name = mdev->product_name;
    + dev->id.bustype = BUS_HOST;
    + input_set_drvdata(dev, pad);
    +
    + error = input_register_device(dev);
    + if (error)
    + goto fail_register;
    +
    + return error;
    +
    +fail_register:
    + input_free_device(pad->dev);
    +fail_nomem_2:
    + kfree(pad);
    +fail_nomem_1:
    + return -error;
    +}
    +
    +/* allow the controller to be used */
    +static int probe_maple_controller(struct device *dev)
    +{
    + struct maple_device *mdev = to_maple_dev(dev);
    + struct maple_driver *mdrv = to_maple_driver(dev->driver);
    + int error;
    +
    + error = dc_pad_connect(mdev);
    + if (error)
    + return error;
    +
    + mdev->driver = mdrv;
    +
    + return 0;
    +}
    +
    +static int remove_maple_controller(struct device *dev)
    +{
    + struct maple_device *mdev = to_maple_dev(dev);
    +
    + dc_pad_disconnect(mdev);
    + return 0;
    +}
    +
    +static struct maple_driver dc_pad_driver = {
    + .function = MAPLE_FUNC_CONTROLLER,
    + .connect = dc_pad_connect,
    + .disconnect = dc_pad_disconnect,
    + .drv = {
    + .name = "Dreamcast_controller",
    + .probe = probe_maple_controller,
    + .remove = remove_maple_controller,
    + },
    +};
    +
    +static int __init dc_pad_init(void)
    +{
    + return maple_driver_register(&dc_pad_driver.drv);
    +}
    +
    +static void __exit dc_pad_exit(void)
    +{
    + driver_unregister(&dc_pad_driver.drv);
    +}
    +
    +module_init(dc_pad_init);
    +module_exit(dc_pad_exit);



    \
     
     \ /
      Last update: 2008-05-18 21:23    [W:0.038 / U:125.852 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site