544 lines
13 KiB
C
544 lines
13 KiB
C
/*
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* ati_remote2 - ATI/Philips USB RF remote driver
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*
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* Copyright (C) 2005 Ville Syrjala <syrjala@sci.fi>
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* Copyright (C) 2007 Peter Stokes <linux@dadeos.freeserve.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*/
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#include <linux/usb/input.h>
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#define DRIVER_DESC "ATI/Philips USB RF remote driver"
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#define DRIVER_VERSION "0.2"
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_VERSION(DRIVER_VERSION);
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MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
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MODULE_LICENSE("GPL");
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/*
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* ATI Remote Wonder II Channel Configuration
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*
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* The remote control can by assigned one of sixteen "channels" in order to facilitate
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* the use of multiple remote controls within range of each other.
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* A remote's "channel" may be altered by pressing and holding the "PC" button for
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* approximately 3 seconds, after which the button will slowly flash the count of the
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* currently configured "channel", using the numeric keypad enter a number between 1 and
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* 16 and then the "PC" button again, the button will slowly flash the count of the
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* newly configured "channel".
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*/
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static unsigned int channel_mask = 0xFFFF;
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module_param(channel_mask, uint, 0644);
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MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
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static unsigned int mode_mask = 0x1F;
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module_param(mode_mask, uint, 0644);
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MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
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static struct usb_device_id ati_remote2_id_table[] = {
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{ USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
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{ }
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};
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MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
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static struct {
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int hw_code;
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int key_code;
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} ati_remote2_key_table[] = {
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{ 0x00, KEY_0 },
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{ 0x01, KEY_1 },
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{ 0x02, KEY_2 },
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{ 0x03, KEY_3 },
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{ 0x04, KEY_4 },
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{ 0x05, KEY_5 },
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{ 0x06, KEY_6 },
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{ 0x07, KEY_7 },
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{ 0x08, KEY_8 },
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{ 0x09, KEY_9 },
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{ 0x0c, KEY_POWER },
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{ 0x0d, KEY_MUTE },
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{ 0x10, KEY_VOLUMEUP },
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{ 0x11, KEY_VOLUMEDOWN },
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{ 0x20, KEY_CHANNELUP },
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{ 0x21, KEY_CHANNELDOWN },
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{ 0x28, KEY_FORWARD },
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{ 0x29, KEY_REWIND },
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{ 0x2c, KEY_PLAY },
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{ 0x30, KEY_PAUSE },
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{ 0x31, KEY_STOP },
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{ 0x37, KEY_RECORD },
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{ 0x38, KEY_DVD },
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{ 0x39, KEY_TV },
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{ 0x54, KEY_MENU },
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{ 0x58, KEY_UP },
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{ 0x59, KEY_DOWN },
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{ 0x5a, KEY_LEFT },
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{ 0x5b, KEY_RIGHT },
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{ 0x5c, KEY_OK },
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{ 0x78, KEY_A },
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{ 0x79, KEY_B },
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{ 0x7a, KEY_C },
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{ 0x7b, KEY_D },
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{ 0x7c, KEY_E },
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{ 0x7d, KEY_F },
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{ 0x82, KEY_ENTER },
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{ 0x8e, KEY_VENDOR },
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{ 0x96, KEY_COFFEE },
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{ 0xa9, BTN_LEFT },
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{ 0xaa, BTN_RIGHT },
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{ 0xbe, KEY_QUESTION },
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{ 0xd5, KEY_FRONT },
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{ 0xd0, KEY_EDIT },
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{ 0xf9, KEY_INFO },
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{ (0x00 << 8) | 0x3f, KEY_PROG1 },
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{ (0x01 << 8) | 0x3f, KEY_PROG2 },
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{ (0x02 << 8) | 0x3f, KEY_PROG3 },
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{ (0x03 << 8) | 0x3f, KEY_PROG4 },
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{ (0x04 << 8) | 0x3f, KEY_PC },
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{ 0, KEY_RESERVED }
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};
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struct ati_remote2 {
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struct input_dev *idev;
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struct usb_device *udev;
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struct usb_interface *intf[2];
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struct usb_endpoint_descriptor *ep[2];
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struct urb *urb[2];
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void *buf[2];
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dma_addr_t buf_dma[2];
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unsigned long jiffies;
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int mode;
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char name[64];
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char phys[64];
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};
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static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
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static void ati_remote2_disconnect(struct usb_interface *interface);
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static struct usb_driver ati_remote2_driver = {
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.name = "ati_remote2",
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.probe = ati_remote2_probe,
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.disconnect = ati_remote2_disconnect,
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.id_table = ati_remote2_id_table,
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};
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static int ati_remote2_open(struct input_dev *idev)
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{
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struct ati_remote2 *ar2 = input_get_drvdata(idev);
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int r;
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r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
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if (r) {
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dev_err(&ar2->intf[0]->dev,
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"%s: usb_submit_urb() = %d\n", __FUNCTION__, r);
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return r;
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}
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r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
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if (r) {
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usb_kill_urb(ar2->urb[0]);
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dev_err(&ar2->intf[1]->dev,
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"%s: usb_submit_urb() = %d\n", __FUNCTION__, r);
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return r;
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}
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return 0;
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}
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static void ati_remote2_close(struct input_dev *idev)
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{
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struct ati_remote2 *ar2 = input_get_drvdata(idev);
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usb_kill_urb(ar2->urb[0]);
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usb_kill_urb(ar2->urb[1]);
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}
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static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
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{
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struct input_dev *idev = ar2->idev;
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u8 *data = ar2->buf[0];
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int channel, mode;
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channel = data[0] >> 4;
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if (!((1 << channel) & channel_mask))
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return;
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mode = data[0] & 0x0F;
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if (mode > 4) {
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dev_err(&ar2->intf[0]->dev,
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"Unknown mode byte (%02x %02x %02x %02x)\n",
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data[3], data[2], data[1], data[0]);
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return;
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}
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if (!((1 << mode) & mode_mask))
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return;
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input_event(idev, EV_REL, REL_X, (s8) data[1]);
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input_event(idev, EV_REL, REL_Y, (s8) data[2]);
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input_sync(idev);
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}
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static int ati_remote2_lookup(unsigned int hw_code)
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{
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int i;
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for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
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if (ati_remote2_key_table[i].hw_code == hw_code)
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return i;
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return -1;
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}
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static void ati_remote2_input_key(struct ati_remote2 *ar2)
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{
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struct input_dev *idev = ar2->idev;
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u8 *data = ar2->buf[1];
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int channel, mode, hw_code, index;
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channel = data[0] >> 4;
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if (!((1 << channel) & channel_mask))
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return;
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mode = data[0] & 0x0F;
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if (mode > 4) {
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dev_err(&ar2->intf[1]->dev,
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"Unknown mode byte (%02x %02x %02x %02x)\n",
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data[3], data[2], data[1], data[0]);
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return;
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}
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hw_code = data[2];
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/*
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* Mode keys (AUX1-AUX4, PC) all generate the same code byte.
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* Use the mode byte to figure out which one was pressed.
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*/
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if (hw_code == 0x3f) {
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/*
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* For some incomprehensible reason the mouse pad generates
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* events which look identical to the events from the last
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* pressed mode key. Naturally we don't want to generate key
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* events for the mouse pad so we filter out any subsequent
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* events from the same mode key.
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*/
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if (ar2->mode == mode)
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return;
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if (data[1] == 0)
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ar2->mode = mode;
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hw_code |= mode << 8;
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}
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if (!((1 << mode) & mode_mask))
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return;
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index = ati_remote2_lookup(hw_code);
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if (index < 0) {
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dev_err(&ar2->intf[1]->dev,
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"Unknown code byte (%02x %02x %02x %02x)\n",
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data[3], data[2], data[1], data[0]);
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return;
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}
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switch (data[1]) {
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case 0: /* release */
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break;
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case 1: /* press */
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ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
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break;
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case 2: /* repeat */
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/* No repeat for mouse buttons. */
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if (ati_remote2_key_table[index].key_code == BTN_LEFT ||
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ati_remote2_key_table[index].key_code == BTN_RIGHT)
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return;
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if (!time_after_eq(jiffies, ar2->jiffies))
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return;
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ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
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break;
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default:
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dev_err(&ar2->intf[1]->dev,
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"Unknown state byte (%02x %02x %02x %02x)\n",
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data[3], data[2], data[1], data[0]);
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return;
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}
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input_event(idev, EV_KEY, ati_remote2_key_table[index].key_code, data[1]);
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input_sync(idev);
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}
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static void ati_remote2_complete_mouse(struct urb *urb)
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{
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struct ati_remote2 *ar2 = urb->context;
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int r;
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switch (urb->status) {
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case 0:
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ati_remote2_input_mouse(ar2);
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break;
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case -ENOENT:
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case -EILSEQ:
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case -ECONNRESET:
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case -ESHUTDOWN:
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dev_dbg(&ar2->intf[0]->dev,
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"%s(): urb status = %d\n", __FUNCTION__, urb->status);
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return;
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default:
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dev_err(&ar2->intf[0]->dev,
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"%s(): urb status = %d\n", __FUNCTION__, urb->status);
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}
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r = usb_submit_urb(urb, GFP_ATOMIC);
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if (r)
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dev_err(&ar2->intf[0]->dev,
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"%s(): usb_submit_urb() = %d\n", __FUNCTION__, r);
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}
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static void ati_remote2_complete_key(struct urb *urb)
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{
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struct ati_remote2 *ar2 = urb->context;
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int r;
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switch (urb->status) {
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case 0:
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ati_remote2_input_key(ar2);
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break;
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case -ENOENT:
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case -EILSEQ:
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case -ECONNRESET:
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case -ESHUTDOWN:
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dev_dbg(&ar2->intf[1]->dev,
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"%s(): urb status = %d\n", __FUNCTION__, urb->status);
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return;
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default:
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dev_err(&ar2->intf[1]->dev,
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"%s(): urb status = %d\n", __FUNCTION__, urb->status);
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}
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r = usb_submit_urb(urb, GFP_ATOMIC);
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if (r)
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dev_err(&ar2->intf[1]->dev,
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"%s(): usb_submit_urb() = %d\n", __FUNCTION__, r);
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}
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static int ati_remote2_input_init(struct ati_remote2 *ar2)
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{
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struct input_dev *idev;
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int i, retval;
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idev = input_allocate_device();
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if (!idev)
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return -ENOMEM;
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ar2->idev = idev;
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input_set_drvdata(idev, ar2);
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idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_REL);
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idev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT);
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idev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
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for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
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set_bit(ati_remote2_key_table[i].key_code, idev->keybit);
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idev->rep[REP_DELAY] = 250;
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idev->rep[REP_PERIOD] = 33;
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idev->open = ati_remote2_open;
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idev->close = ati_remote2_close;
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idev->name = ar2->name;
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idev->phys = ar2->phys;
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usb_to_input_id(ar2->udev, &idev->id);
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idev->dev.parent = &ar2->udev->dev;
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retval = input_register_device(idev);
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if (retval)
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input_free_device(idev);
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return retval;
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}
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static int ati_remote2_urb_init(struct ati_remote2 *ar2)
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{
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struct usb_device *udev = ar2->udev;
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int i, pipe, maxp;
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for (i = 0; i < 2; i++) {
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ar2->buf[i] = usb_buffer_alloc(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
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if (!ar2->buf[i])
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return -ENOMEM;
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ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
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if (!ar2->urb[i])
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return -ENOMEM;
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pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
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maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
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maxp = maxp > 4 ? 4 : maxp;
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usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
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i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
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ar2, ar2->ep[i]->bInterval);
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ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
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ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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}
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return 0;
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}
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static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
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{
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int i;
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for (i = 0; i < 2; i++) {
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usb_free_urb(ar2->urb[i]);
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usb_buffer_free(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
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}
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}
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static int ati_remote2_setup(struct ati_remote2 *ar2)
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{
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int r, i, channel;
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/*
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* Configure receiver to only accept input from remote "channel"
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* channel == 0 -> Accept input from any remote channel
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* channel == 1 -> Only accept input from remote channel 1
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* channel == 2 -> Only accept input from remote channel 2
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* ...
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* channel == 16 -> Only accept input from remote channel 16
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*/
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channel = 0;
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for (i = 0; i < 16; i++) {
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if ((1 << i) & channel_mask) {
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if (!(~(1 << i) & 0xFFFF & channel_mask))
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channel = i + 1;
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break;
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}
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}
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r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
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0x20,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
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channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
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if (r) {
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dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
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__FUNCTION__, r);
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return r;
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}
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return 0;
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}
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static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
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{
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struct usb_device *udev = interface_to_usbdev(interface);
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struct usb_host_interface *alt = interface->cur_altsetting;
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struct ati_remote2 *ar2;
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int r;
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if (alt->desc.bInterfaceNumber)
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return -ENODEV;
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ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
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if (!ar2)
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return -ENOMEM;
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ar2->udev = udev;
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ar2->intf[0] = interface;
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ar2->ep[0] = &alt->endpoint[0].desc;
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ar2->intf[1] = usb_ifnum_to_if(udev, 1);
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r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
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if (r)
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goto fail1;
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alt = ar2->intf[1]->cur_altsetting;
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ar2->ep[1] = &alt->endpoint[0].desc;
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r = ati_remote2_urb_init(ar2);
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if (r)
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goto fail2;
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r = ati_remote2_setup(ar2);
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if (r)
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goto fail2;
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usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
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strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
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strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
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r = ati_remote2_input_init(ar2);
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if (r)
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goto fail2;
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usb_set_intfdata(interface, ar2);
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return 0;
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fail2:
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ati_remote2_urb_cleanup(ar2);
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usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
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fail1:
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kfree(ar2);
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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);
|