diff options
Diffstat (limited to 'drivers/usb/input/ati_remote2.c')
| -rw-r--r-- | drivers/usb/input/ati_remote2.c | 477 |
1 files changed, 477 insertions, 0 deletions
diff --git a/drivers/usb/input/ati_remote2.c b/drivers/usb/input/ati_remote2.c new file mode 100644 index 0000000..ab1a1ae --- /dev/null +++ b/drivers/usb/input/ati_remote2.c @@ -0,0 +1,477 @@ +/* + * ati_remote2 - ATI/Philips USB RF remote driver + * + * Copyright (C) 2005 Ville Syrjala <syrjala@sci.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + */ + +#include <linux/usb_input.h> + +#define DRIVER_DESC "ATI/Philips USB RF remote driver" +#define DRIVER_VERSION "0.1" + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_VERSION(DRIVER_VERSION); +MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>"); +MODULE_LICENSE("GPL"); + +static unsigned int mode_mask = 0x1F; +module_param(mode_mask, uint, 0644); +MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>"); + +static struct usb_device_id ati_remote2_id_table[] = { + { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */ + { } +}; +MODULE_DEVICE_TABLE(usb, ati_remote2_id_table); + +static struct { + int hw_code; + int key_code; +} ati_remote2_key_table[] = { + { 0x00, KEY_0 }, + { 0x01, KEY_1 }, + { 0x02, KEY_2 }, + { 0x03, KEY_3 }, + { 0x04, KEY_4 }, + { 0x05, KEY_5 }, + { 0x06, KEY_6 }, + { 0x07, KEY_7 }, + { 0x08, KEY_8 }, + { 0x09, KEY_9 }, + { 0x0c, KEY_POWER }, + { 0x0d, KEY_MUTE }, + { 0x10, KEY_VOLUMEUP }, + { 0x11, KEY_VOLUMEDOWN }, + { 0x20, KEY_CHANNELUP }, + { 0x21, KEY_CHANNELDOWN }, + { 0x28, KEY_FORWARD }, + { 0x29, KEY_REWIND }, + { 0x2c, KEY_PLAY }, + { 0x30, KEY_PAUSE }, + { 0x31, KEY_STOP }, + { 0x37, KEY_RECORD }, + { 0x38, KEY_DVD }, + { 0x39, KEY_TV }, + { 0x54, KEY_MENU }, + { 0x58, KEY_UP }, + { 0x59, KEY_DOWN }, + { 0x5a, KEY_LEFT }, + { 0x5b, KEY_RIGHT }, + { 0x5c, KEY_OK }, + { 0x78, KEY_A }, + { 0x79, KEY_B }, + { 0x7a, KEY_C }, + { 0x7b, KEY_D }, + { 0x7c, KEY_E }, + { 0x7d, KEY_F }, + { 0x82, KEY_ENTER }, + { 0x8e, KEY_VENDOR }, + { 0x96, KEY_COFFEE }, + { 0xa9, BTN_LEFT }, + { 0xaa, BTN_RIGHT }, + { 0xbe, KEY_QUESTION }, + { 0xd5, KEY_FRONT }, + { 0xd0, KEY_EDIT }, + { 0xf9, KEY_INFO }, + { (0x00 << 8) | 0x3f, KEY_PROG1 }, + { (0x01 << 8) | 0x3f, KEY_PROG2 }, + { (0x02 << 8) | 0x3f, KEY_PROG3 }, + { (0x03 << 8) | 0x3f, KEY_PROG4 }, + { (0x04 << 8) | 0x3f, KEY_PC }, + { 0, KEY_RESERVED } +}; + +struct ati_remote2 { + struct input_dev *idev; + struct usb_device *udev; + + struct usb_interface *intf[2]; + struct usb_endpoint_descriptor *ep[2]; + struct urb *urb[2]; + void *buf[2]; + dma_addr_t buf_dma[2]; + + unsigned long jiffies; + int mode; + + char name[64]; + char phys[64]; +}; + +static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id); +static void ati_remote2_disconnect(struct usb_interface *interface); + +static struct usb_driver ati_remote2_driver = { + .name = "ati_remote2", + .probe = ati_remote2_probe, + .disconnect = ati_remote2_disconnect, + .id_table = ati_remote2_id_table, +}; + +static int ati_remote2_open(struct input_dev *idev) +{ + struct ati_remote2 *ar2 = idev->private; + int r; + + r = usb_submit_urb(ar2->urb[0], GFP_KERNEL); + if (r) { + dev_err(&ar2->intf[0]->dev, + "%s: usb_submit_urb() = %d\n", __FUNCTION__, r); + return r; + } + r = usb_submit_urb(ar2->urb[1], GFP_KERNEL); + if (r) { + usb_kill_urb(ar2->urb[0]); + dev_err(&ar2->intf[1]->dev, + "%s: usb_submit_urb() = %d\n", __FUNCTION__, r); + return r; + } + + return 0; +} + +static void ati_remote2_close(struct input_dev *idev) +{ + struct ati_remote2 *ar2 = idev->private; + + usb_kill_urb(ar2->urb[0]); + usb_kill_urb(ar2->urb[1]); +} + +static void ati_remote2_input_mouse(struct ati_remote2 *ar2, struct pt_regs *regs) +{ + struct input_dev *idev = ar2->idev; + u8 *data = ar2->buf[0]; + + if (data[0] > 4) { + dev_err(&ar2->intf[0]->dev, + "Unknown mode byte (%02x %02x %02x %02x)\n", + data[3], data[2], data[1], data[0]); + return; + } + + if (!((1 << data[0]) & mode_mask)) + return; + + input_regs(idev, regs); + input_event(idev, EV_REL, REL_X, (s8) data[1]); + input_event(idev, EV_REL, REL_Y, (s8) data[2]); + input_sync(idev); +} + +static int ati_remote2_lookup(unsigned int hw_code) +{ + int i; + + for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++) + if (ati_remote2_key_table[i].hw_code == hw_code) + return i; + + return -1; +} + +static void ati_remote2_input_key(struct ati_remote2 *ar2, struct pt_regs *regs) +{ + struct input_dev *idev = ar2->idev; + u8 *data = ar2->buf[1]; + int hw_code, index; + + if (data[0] > 4) { + dev_err(&ar2->intf[1]->dev, + "Unknown mode byte (%02x %02x %02x %02x)\n", + data[3], data[2], data[1], data[0]); + return; + } + + hw_code = data[2]; + /* + * Mode keys (AUX1-AUX4, PC) all generate the same code byte. + * Use the mode byte to figure out which one was pressed. + */ + if (hw_code == 0x3f) { + /* + * For some incomprehensible reason the mouse pad generates + * events which look identical to the events from the last + * pressed mode key. Naturally we don't want to generate key + * events for the mouse pad so we filter out any subsequent + * events from the same mode key. + */ + if (ar2->mode == data[0]) + return; + + if (data[1] == 0) + ar2->mode = data[0]; + + hw_code |= data[0] << 8; + } + + if (!((1 << data[0]) & mode_mask)) + return; + + index = ati_remote2_lookup(hw_code); + if (index < 0) { + dev_err(&ar2->intf[1]->dev, + "Unknown code byte (%02x %02x %02x %02x)\n", + data[3], data[2], data[1], data[0]); + return; + } + + switch (data[1]) { + case 0: /* release */ + break; + case 1: /* press */ + ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]); + break; + case 2: /* repeat */ + + /* No repeat for mouse buttons. */ + if (ati_remote2_key_table[index].key_code == BTN_LEFT || + ati_remote2_key_table[index].key_code == BTN_RIGHT) + return; + + if (!time_after_eq(jiffies, ar2->jiffies)) + return; + + ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]); + break; + default: + dev_err(&ar2->intf[1]->dev, + "Unknown state byte (%02x %02x %02x %02x)\n", + data[3], data[2], data[1], data[0]); + return; + } + + input_regs(idev, regs); + input_event(idev, EV_KEY, ati_remote2_key_table[index].key_code, data[1]); + input_sync(idev); +} + +static void ati_remote2_complete_mouse(struct urb *urb, struct pt_regs *regs) +{ + struct ati_remote2 *ar2 = urb->context; + int r; + + switch (urb->status) { + case 0: + ati_remote2_input_mouse(ar2, regs); + break; + case -ENOENT: + case -EILSEQ: + case -ECONNRESET: + case -ESHUTDOWN: + dev_dbg(&ar2->intf[0]->dev, + "%s(): urb status = %d\n", __FUNCTION__, urb->status); + return; + default: + dev_err(&ar2->intf[0]->dev, + "%s(): urb status = %d\n", __FUNCTION__, urb->status); + } + + r = usb_submit_urb(urb, GFP_ATOMIC); + if (r) + dev_err(&ar2->intf[0]->dev, + "%s(): usb_submit_urb() = %d\n", __FUNCTION__, r); +} + +static void ati_remote2_complete_key(struct urb *urb, struct pt_regs *regs) +{ + struct ati_remote2 *ar2 = urb->context; + int r; + + switch (urb->status) { + case 0: + ati_remote2_input_key(ar2, regs); + break; + case -ENOENT: + case -EILSEQ: + case -ECONNRESET: + case -ESHUTDOWN: + dev_dbg(&ar2->intf[1]->dev, + "%s(): urb status = %d\n", __FUNCTION__, urb->status); + return; + default: + dev_err(&ar2->intf[1]->dev, + "%s(): urb status = %d\n", __FUNCTION__, urb->status); + } + + r = usb_submit_urb(urb, GFP_ATOMIC); + if (r) + dev_err(&ar2->intf[1]->dev, + "%s(): usb_submit_urb() = %d\n", __FUNCTION__, r); +} + +static int ati_remote2_input_init(struct ati_remote2 *ar2) +{ + struct input_dev *idev; + int i; + + idev = input_allocate_device(); + if (!idev) + return -ENOMEM; + + ar2->idev = idev; + idev->private = ar2; + + idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_REL); + idev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT); + idev->relbit[0] = BIT(REL_X) | BIT(REL_Y); + for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++) + set_bit(ati_remote2_key_table[i].key_code, idev->keybit); + + idev->rep[REP_DELAY] = 250; + idev->rep[REP_PERIOD] = 33; + + idev->open = ati_remote2_open; + idev->close = ati_remote2_close; + + idev->name = ar2->name; + idev->phys = ar2->phys; + + usb_to_input_id(ar2->udev, &idev->id); + idev->cdev.dev = &ar2->udev->dev; + + i = input_register_device(idev); + if (i) + input_free_device(idev); + + return i; +} + +static int ati_remote2_urb_init(struct ati_remote2 *ar2) +{ + struct usb_device *udev = ar2->udev; + int i, pipe, maxp; + + for (i = 0; i < 2; i++) { + ar2->buf[i] = usb_buffer_alloc(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]); + if (!ar2->buf[i]) + return -ENOMEM; + + ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!ar2->urb[i]) + return -ENOMEM; + + pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress); + maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = maxp > 4 ? 4 : maxp; + + usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp, + i ? ati_remote2_complete_key : ati_remote2_complete_mouse, + ar2, ar2->ep[i]->bInterval); + ar2->urb[i]->transfer_dma = ar2->buf_dma[i]; + ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + } + + return 0; +} + +static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2) +{ + int i; + + for (i = 0; i < 2; i++) { + if (ar2->urb[i]) + usb_free_urb(ar2->urb[i]); + + if (ar2->buf[i]) + usb_buffer_free(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]); + } +} + +static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct usb_host_interface *alt = interface->cur_altsetting; + struct ati_remote2 *ar2; + int r; + + if (alt->desc.bInterfaceNumber) + return -ENODEV; + + ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL); + if (!ar2) + return -ENOMEM; + + ar2->udev = udev; + + ar2->intf[0] = interface; + ar2->ep[0] = &alt->endpoint[0].desc; + + ar2->intf[1] = usb_ifnum_to_if(udev, 1); + r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2); + if (r) + goto fail1; + alt = ar2->intf[1]->cur_altsetting; + ar2->ep[1] = &alt->endpoint[0].desc; + + r = ati_remote2_urb_init(ar2); + if (r) + goto fail2; + + usb_make_path(udev, ar2->phys, sizeof(ar2->phys)); + strlcat(ar2->phys, "/input0", sizeof(ar2->phys)); + + strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name)); + + r = ati_remote2_input_init(ar2); + if (r) + goto fail2; + + usb_set_intfdata(interface, ar2); + + return 0; + + fail2: + ati_remote2_urb_cleanup(ar2); + + usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); + fail1: + kfree(ar2); + + return r; +} + +static void ati_remote2_disconnect(struct usb_interface *interface) +{ + struct ati_remote2 *ar2; + struct usb_host_interface *alt = interface->cur_altsetting; + + if (alt->desc.bInterfaceNumber) + return; + + ar2 = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + input_unregister_device(ar2->idev); + + ati_remote2_urb_cleanup(ar2); + + usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); + + kfree(ar2); +} + +static int __init ati_remote2_init(void) +{ + int r; + + r = usb_register(&ati_remote2_driver); + if (r) + printk(KERN_ERR "ati_remote2: usb_register() = %d\n", r); + else + printk(KERN_INFO "ati_remote2: " DRIVER_DESC " " DRIVER_VERSION "\n"); + + return r; +} + +static void __exit ati_remote2_exit(void) +{ + usb_deregister(&ati_remote2_driver); +} + +module_init(ati_remote2_init); +module_exit(ati_remote2_exit); |
