// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* drivers/usb/input/yealink.c
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*
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* Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
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*/
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/*
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* Description:
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* Driver for the USB-P1K voip usb phone.
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* This device is produced by Yealink Network Technology Co Ltd
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* but may be branded under several names:
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* - Yealink usb-p1k
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* - Tiptel 115
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* - ...
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*
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* This driver is based on:
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* - the usbb2k-api http://savannah.nongnu.org/projects/usbb2k-api/
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* - information from http://memeteau.free.fr/usbb2k
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* - the xpad-driver drivers/input/joystick/xpad.c
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*
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* Thanks to:
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* - Olivier Vandorpe, for providing the usbb2k-api.
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* - Martin Diehl, for spotting my memory allocation bug.
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*
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* History:
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* 20050527 henk First version, functional keyboard. Keyboard events
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* will pop-up on the ../input/eventX bus.
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* 20050531 henk Added led, LCD, dialtone and sysfs interface.
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* 20050610 henk Cleanups, make it ready for public consumption.
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* 20050630 henk Cleanups, fixes in response to comments.
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* 20050701 henk sysfs write serialisation, fix potential unload races
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* 20050801 henk Added ringtone, restructure USB
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* 20050816 henk Merge 2.6.13-rc6
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/rwsem.h>
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#include <linux/usb/input.h>
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#include <linux/map_to_7segment.h>
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#include "yealink.h"
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#define DRIVER_VERSION "yld-20051230"
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#define YEALINK_POLLING_FREQUENCY 10 /* in [Hz] */
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struct yld_status {
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u8 lcd[24];
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u8 led;
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u8 dialtone;
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u8 ringtone;
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u8 keynum;
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} __attribute__ ((packed));
|
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/*
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* Register the LCD segment and icon map
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*/
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#define _LOC(k,l) { .a = (k), .m = (l) }
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#define _SEG(t, a, am, b, bm, c, cm, d, dm, e, em, f, fm, g, gm) \
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{ .type = (t), \
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.u = { .s = { _LOC(a, am), _LOC(b, bm), _LOC(c, cm), \
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_LOC(d, dm), _LOC(e, em), _LOC(g, gm), \
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_LOC(f, fm) } } }
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#define _PIC(t, h, hm, n) \
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{ .type = (t), \
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.u = { .p = { .name = (n), .a = (h), .m = (hm) } } }
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static const struct lcd_segment_map {
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char type;
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union {
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struct pictogram_map {
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u8 a,m;
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char name[10];
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} p;
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struct segment_map {
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u8 a,m;
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} s[7];
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} u;
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} lcdMap[] = {
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#include "yealink.h"
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};
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struct yealink_dev {
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struct input_dev *idev; /* input device */
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struct usb_device *udev; /* usb device */
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struct usb_interface *intf; /* usb interface */
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/* irq input channel */
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struct yld_ctl_packet *irq_data;
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dma_addr_t irq_dma;
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struct urb *urb_irq;
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/* control output channel */
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struct yld_ctl_packet *ctl_data;
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dma_addr_t ctl_dma;
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struct usb_ctrlrequest *ctl_req;
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struct urb *urb_ctl;
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char phys[64]; /* physical device path */
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u8 lcdMap[ARRAY_SIZE(lcdMap)]; /* state of LCD, LED ... */
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int key_code; /* last reported key */
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unsigned int shutdown:1;
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int stat_ix;
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union {
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struct yld_status s;
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u8 b[sizeof(struct yld_status)];
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} master, copy;
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};
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|
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/*******************************************************************************
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* Yealink lcd interface
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******************************************************************************/
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/*
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* Register a default 7 segment character set
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*/
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static SEG7_DEFAULT_MAP(map_seg7);
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/* Display a char,
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* char '\9' and '\n' are placeholders and do not overwrite the original text.
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* A space will always hide an icon.
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*/
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static int setChar(struct yealink_dev *yld, int el, int chr)
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{
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int i, a, m, val;
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if (el >= ARRAY_SIZE(lcdMap))
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return -EINVAL;
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if (chr == '\t' || chr == '\n')
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return 0;
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yld->lcdMap[el] = chr;
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if (lcdMap[el].type == '.') {
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a = lcdMap[el].u.p.a;
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m = lcdMap[el].u.p.m;
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if (chr != ' ')
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yld->master.b[a] |= m;
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else
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yld->master.b[a] &= ~m;
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return 0;
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}
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val = map_to_seg7(&map_seg7, chr);
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for (i = 0; i < ARRAY_SIZE(lcdMap[0].u.s); i++) {
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m = lcdMap[el].u.s[i].m;
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if (m == 0)
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continue;
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a = lcdMap[el].u.s[i].a;
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if (val & 1)
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yld->master.b[a] |= m;
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else
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yld->master.b[a] &= ~m;
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val = val >> 1;
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}
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return 0;
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};
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/*******************************************************************************
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* Yealink key interface
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******************************************************************************/
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/* Map device buttons to internal key events.
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*
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* USB-P1K button layout:
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*
|
* up
|
* IN OUT
|
* down
|
*
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* pickup C hangup
|
* 1 2 3
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* 4 5 6
|
* 7 8 9
|
* * 0 #
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*
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* The "up" and "down" keys, are symbolised by arrows on the button.
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* The "pickup" and "hangup" keys are symbolised by a green and red phone
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* on the button.
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*/
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static int map_p1k_to_key(int scancode)
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{
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switch(scancode) { /* phone key: */
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case 0x23: return KEY_LEFT; /* IN */
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case 0x33: return KEY_UP; /* up */
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case 0x04: return KEY_RIGHT; /* OUT */
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case 0x24: return KEY_DOWN; /* down */
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case 0x03: return KEY_ENTER; /* pickup */
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case 0x14: return KEY_BACKSPACE; /* C */
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case 0x13: return KEY_ESC; /* hangup */
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case 0x00: return KEY_1; /* 1 */
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case 0x01: return KEY_2; /* 2 */
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case 0x02: return KEY_3; /* 3 */
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case 0x10: return KEY_4; /* 4 */
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case 0x11: return KEY_5; /* 5 */
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case 0x12: return KEY_6; /* 6 */
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case 0x20: return KEY_7; /* 7 */
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case 0x21: return KEY_8; /* 8 */
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case 0x22: return KEY_9; /* 9 */
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case 0x30: return KEY_KPASTERISK; /* * */
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case 0x31: return KEY_0; /* 0 */
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case 0x32: return KEY_LEFTSHIFT |
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KEY_3 << 8; /* # */
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}
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return -EINVAL;
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}
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/* Completes a request by converting the data into events for the
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* input subsystem.
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*
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* The key parameter can be cascaded: key2 << 8 | key1
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*/
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static void report_key(struct yealink_dev *yld, int key)
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{
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struct input_dev *idev = yld->idev;
|
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if (yld->key_code >= 0) {
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/* old key up */
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input_report_key(idev, yld->key_code & 0xff, 0);
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if (yld->key_code >> 8)
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input_report_key(idev, yld->key_code >> 8, 0);
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}
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yld->key_code = key;
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if (key >= 0) {
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/* new valid key */
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input_report_key(idev, key & 0xff, 1);
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if (key >> 8)
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input_report_key(idev, key >> 8, 1);
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}
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input_sync(idev);
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}
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/*******************************************************************************
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* Yealink usb communication interface
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******************************************************************************/
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static int yealink_cmd(struct yealink_dev *yld, struct yld_ctl_packet *p)
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{
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u8 *buf = (u8 *)p;
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int i;
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u8 sum = 0;
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for(i=0; i<USB_PKT_LEN-1; i++)
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sum -= buf[i];
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p->sum = sum;
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return usb_control_msg(yld->udev,
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usb_sndctrlpipe(yld->udev, 0),
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USB_REQ_SET_CONFIGURATION,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
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0x200, 3,
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p, sizeof(*p),
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USB_CTRL_SET_TIMEOUT);
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}
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static u8 default_ringtone[] = {
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0xEF, /* volume [0-255] */
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0xFB, 0x1E, 0x00, 0x0C, /* 1250 [hz], 12/100 [s] */
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0xFC, 0x18, 0x00, 0x0C, /* 1000 [hz], 12/100 [s] */
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0xFB, 0x1E, 0x00, 0x0C,
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0xFC, 0x18, 0x00, 0x0C,
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0xFB, 0x1E, 0x00, 0x0C,
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0xFC, 0x18, 0x00, 0x0C,
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0xFB, 0x1E, 0x00, 0x0C,
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0xFC, 0x18, 0x00, 0x0C,
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0xFF, 0xFF, 0x01, 0x90, /* silent, 400/100 [s] */
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0x00, 0x00 /* end of sequence */
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};
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static int yealink_set_ringtone(struct yealink_dev *yld, u8 *buf, size_t size)
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{
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struct yld_ctl_packet *p = yld->ctl_data;
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int ix, len;
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if (size <= 0)
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return -EINVAL;
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/* Set the ringtone volume */
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memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
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yld->ctl_data->cmd = CMD_RING_VOLUME;
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yld->ctl_data->size = 1;
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yld->ctl_data->data[0] = buf[0];
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yealink_cmd(yld, p);
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buf++;
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size--;
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p->cmd = CMD_RING_NOTE;
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ix = 0;
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while (size != ix) {
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len = size - ix;
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if (len > sizeof(p->data))
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len = sizeof(p->data);
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p->size = len;
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p->offset = cpu_to_be16(ix);
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memcpy(p->data, &buf[ix], len);
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yealink_cmd(yld, p);
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ix += len;
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}
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return 0;
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}
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/* keep stat_master & stat_copy in sync.
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*/
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static int yealink_do_idle_tasks(struct yealink_dev *yld)
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{
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u8 val;
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int i, ix, len;
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ix = yld->stat_ix;
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memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
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yld->ctl_data->cmd = CMD_KEYPRESS;
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yld->ctl_data->size = 1;
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yld->ctl_data->sum = 0xff - CMD_KEYPRESS;
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/* If state update pointer wraps do a KEYPRESS first. */
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if (ix >= sizeof(yld->master)) {
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yld->stat_ix = 0;
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return 0;
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}
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/* find update candidates: copy != master */
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do {
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val = yld->master.b[ix];
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if (val != yld->copy.b[ix])
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goto send_update;
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} while (++ix < sizeof(yld->master));
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/* nothing todo, wait a bit and poll for a KEYPRESS */
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yld->stat_ix = 0;
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/* TODO how can we wait abit. ??
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* msleep_interruptible(1000 / YEALINK_POLLING_FREQUENCY);
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*/
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return 0;
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send_update:
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/* Setup an appropriate update request */
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yld->copy.b[ix] = val;
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yld->ctl_data->data[0] = val;
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switch(ix) {
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case offsetof(struct yld_status, led):
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yld->ctl_data->cmd = CMD_LED;
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yld->ctl_data->sum = -1 - CMD_LED - val;
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break;
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case offsetof(struct yld_status, dialtone):
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yld->ctl_data->cmd = CMD_DIALTONE;
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yld->ctl_data->sum = -1 - CMD_DIALTONE - val;
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break;
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case offsetof(struct yld_status, ringtone):
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yld->ctl_data->cmd = CMD_RINGTONE;
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yld->ctl_data->sum = -1 - CMD_RINGTONE - val;
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break;
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case offsetof(struct yld_status, keynum):
|
val--;
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val &= 0x1f;
|
yld->ctl_data->cmd = CMD_SCANCODE;
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yld->ctl_data->offset = cpu_to_be16(val);
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yld->ctl_data->data[0] = 0;
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yld->ctl_data->sum = -1 - CMD_SCANCODE - val;
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break;
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default:
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len = sizeof(yld->master.s.lcd) - ix;
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if (len > sizeof(yld->ctl_data->data))
|
len = sizeof(yld->ctl_data->data);
|
|
/* Combine up to <len> consecutive LCD bytes in a singe request
|
*/
|
yld->ctl_data->cmd = CMD_LCD;
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yld->ctl_data->offset = cpu_to_be16(ix);
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yld->ctl_data->size = len;
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yld->ctl_data->sum = -CMD_LCD - ix - val - len;
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for(i=1; i<len; i++) {
|
ix++;
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val = yld->master.b[ix];
|
yld->copy.b[ix] = val;
|
yld->ctl_data->data[i] = val;
|
yld->ctl_data->sum -= val;
|
}
|
}
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yld->stat_ix = ix + 1;
|
return 1;
|
}
|
|
/* Decide on how to handle responses
|
*
|
* The state transition diagram is somethhing like:
|
*
|
* syncState<--+
|
* | |
|
* | idle
|
* \|/ |
|
* init --ok--> waitForKey --ok--> getKey
|
* ^ ^ |
|
* | +-------ok-------+
|
* error,start
|
*
|
*/
|
static void urb_irq_callback(struct urb *urb)
|
{
|
struct yealink_dev *yld = urb->context;
|
int ret, status = urb->status;
|
|
if (status)
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dev_err(&yld->intf->dev, "%s - urb status %d\n",
|
__func__, status);
|
|
switch (yld->irq_data->cmd) {
|
case CMD_KEYPRESS:
|
|
yld->master.s.keynum = yld->irq_data->data[0];
|
break;
|
|
case CMD_SCANCODE:
|
dev_dbg(&yld->intf->dev, "get scancode %x\n",
|
yld->irq_data->data[0]);
|
|
report_key(yld, map_p1k_to_key(yld->irq_data->data[0]));
|
break;
|
|
default:
|
dev_err(&yld->intf->dev, "unexpected response %x\n",
|
yld->irq_data->cmd);
|
}
|
|
yealink_do_idle_tasks(yld);
|
|
if (!yld->shutdown) {
|
ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
|
if (ret && ret != -EPERM)
|
dev_err(&yld->intf->dev,
|
"%s - usb_submit_urb failed %d\n",
|
__func__, ret);
|
}
|
}
|
|
static void urb_ctl_callback(struct urb *urb)
|
{
|
struct yealink_dev *yld = urb->context;
|
int ret = 0, status = urb->status;
|
|
if (status)
|
dev_err(&yld->intf->dev, "%s - urb status %d\n",
|
__func__, status);
|
|
switch (yld->ctl_data->cmd) {
|
case CMD_KEYPRESS:
|
case CMD_SCANCODE:
|
/* ask for a response */
|
if (!yld->shutdown)
|
ret = usb_submit_urb(yld->urb_irq, GFP_ATOMIC);
|
break;
|
default:
|
/* send new command */
|
yealink_do_idle_tasks(yld);
|
if (!yld->shutdown)
|
ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
|
break;
|
}
|
|
if (ret && ret != -EPERM)
|
dev_err(&yld->intf->dev, "%s - usb_submit_urb failed %d\n",
|
__func__, ret);
|
}
|
|
/*******************************************************************************
|
* input event interface
|
******************************************************************************/
|
|
/* TODO should we issue a ringtone on a SND_BELL event?
|
static int input_ev(struct input_dev *dev, unsigned int type,
|
unsigned int code, int value)
|
{
|
|
if (type != EV_SND)
|
return -EINVAL;
|
|
switch (code) {
|
case SND_BELL:
|
case SND_TONE:
|
break;
|
default:
|
return -EINVAL;
|
}
|
|
return 0;
|
}
|
*/
|
|
static int input_open(struct input_dev *dev)
|
{
|
struct yealink_dev *yld = input_get_drvdata(dev);
|
int i, ret;
|
|
dev_dbg(&yld->intf->dev, "%s\n", __func__);
|
|
/* force updates to device */
|
for (i = 0; i<sizeof(yld->master); i++)
|
yld->copy.b[i] = ~yld->master.b[i];
|
yld->key_code = -1; /* no keys pressed */
|
|
yealink_set_ringtone(yld, default_ringtone, sizeof(default_ringtone));
|
|
/* issue INIT */
|
memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
|
yld->ctl_data->cmd = CMD_INIT;
|
yld->ctl_data->size = 10;
|
yld->ctl_data->sum = 0x100-CMD_INIT-10;
|
if ((ret = usb_submit_urb(yld->urb_ctl, GFP_KERNEL)) != 0) {
|
dev_dbg(&yld->intf->dev,
|
"%s - usb_submit_urb failed with result %d\n",
|
__func__, ret);
|
return ret;
|
}
|
return 0;
|
}
|
|
static void input_close(struct input_dev *dev)
|
{
|
struct yealink_dev *yld = input_get_drvdata(dev);
|
|
yld->shutdown = 1;
|
/*
|
* Make sure the flag is seen by other CPUs before we start
|
* killing URBs so new URBs won't be submitted
|
*/
|
smp_wmb();
|
|
usb_kill_urb(yld->urb_ctl);
|
usb_kill_urb(yld->urb_irq);
|
|
yld->shutdown = 0;
|
smp_wmb();
|
}
|
|
/*******************************************************************************
|
* sysfs interface
|
******************************************************************************/
|
|
static DECLARE_RWSEM(sysfs_rwsema);
|
|
/* Interface to the 7-segments translation table aka. char set.
|
*/
|
static ssize_t show_map(struct device *dev, struct device_attribute *attr,
|
char *buf)
|
{
|
memcpy(buf, &map_seg7, sizeof(map_seg7));
|
return sizeof(map_seg7);
|
}
|
|
static ssize_t store_map(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t cnt)
|
{
|
if (cnt != sizeof(map_seg7))
|
return -EINVAL;
|
memcpy(&map_seg7, buf, sizeof(map_seg7));
|
return sizeof(map_seg7);
|
}
|
|
/* Interface to the LCD.
|
*/
|
|
/* Reading /sys/../lineX will return the format string with its settings:
|
*
|
* Example:
|
* cat ./line3
|
* 888888888888
|
* Linux Rocks!
|
*/
|
static ssize_t show_line(struct device *dev, char *buf, int a, int b)
|
{
|
struct yealink_dev *yld;
|
int i;
|
|
down_read(&sysfs_rwsema);
|
yld = dev_get_drvdata(dev);
|
if (yld == NULL) {
|
up_read(&sysfs_rwsema);
|
return -ENODEV;
|
}
|
|
for (i = a; i < b; i++)
|
*buf++ = lcdMap[i].type;
|
*buf++ = '\n';
|
for (i = a; i < b; i++)
|
*buf++ = yld->lcdMap[i];
|
*buf++ = '\n';
|
*buf = 0;
|
|
up_read(&sysfs_rwsema);
|
return 3 + ((b - a) << 1);
|
}
|
|
static ssize_t show_line1(struct device *dev, struct device_attribute *attr,
|
char *buf)
|
{
|
return show_line(dev, buf, LCD_LINE1_OFFSET, LCD_LINE2_OFFSET);
|
}
|
|
static ssize_t show_line2(struct device *dev, struct device_attribute *attr,
|
char *buf)
|
{
|
return show_line(dev, buf, LCD_LINE2_OFFSET, LCD_LINE3_OFFSET);
|
}
|
|
static ssize_t show_line3(struct device *dev, struct device_attribute *attr,
|
char *buf)
|
{
|
return show_line(dev, buf, LCD_LINE3_OFFSET, LCD_LINE4_OFFSET);
|
}
|
|
/* Writing to /sys/../lineX will set the coresponding LCD line.
|
* - Excess characters are ignored.
|
* - If less characters are written than allowed, the remaining digits are
|
* unchanged.
|
* - The '\n' or '\t' char is a placeholder, it does not overwrite the
|
* original content.
|
*/
|
static ssize_t store_line(struct device *dev, const char *buf, size_t count,
|
int el, size_t len)
|
{
|
struct yealink_dev *yld;
|
int i;
|
|
down_write(&sysfs_rwsema);
|
yld = dev_get_drvdata(dev);
|
if (yld == NULL) {
|
up_write(&sysfs_rwsema);
|
return -ENODEV;
|
}
|
|
if (len > count)
|
len = count;
|
for (i = 0; i < len; i++)
|
setChar(yld, el++, buf[i]);
|
|
up_write(&sysfs_rwsema);
|
return count;
|
}
|
|
static ssize_t store_line1(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
return store_line(dev, buf, count, LCD_LINE1_OFFSET, LCD_LINE1_SIZE);
|
}
|
|
static ssize_t store_line2(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
return store_line(dev, buf, count, LCD_LINE2_OFFSET, LCD_LINE2_SIZE);
|
}
|
|
static ssize_t store_line3(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
return store_line(dev, buf, count, LCD_LINE3_OFFSET, LCD_LINE3_SIZE);
|
}
|
|
/* Interface to visible and audible "icons", these include:
|
* pictures on the LCD, the LED, and the dialtone signal.
|
*/
|
|
/* Get a list of "switchable elements" with their current state. */
|
static ssize_t get_icons(struct device *dev, struct device_attribute *attr,
|
char *buf)
|
{
|
struct yealink_dev *yld;
|
int i, ret = 1;
|
|
down_read(&sysfs_rwsema);
|
yld = dev_get_drvdata(dev);
|
if (yld == NULL) {
|
up_read(&sysfs_rwsema);
|
return -ENODEV;
|
}
|
|
for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
|
if (lcdMap[i].type != '.')
|
continue;
|
ret += sprintf(&buf[ret], "%s %s\n",
|
yld->lcdMap[i] == ' ' ? " " : "on",
|
lcdMap[i].u.p.name);
|
}
|
up_read(&sysfs_rwsema);
|
return ret;
|
}
|
|
/* Change the visibility of a particular element. */
|
static ssize_t set_icon(struct device *dev, const char *buf, size_t count,
|
int chr)
|
{
|
struct yealink_dev *yld;
|
int i;
|
|
down_write(&sysfs_rwsema);
|
yld = dev_get_drvdata(dev);
|
if (yld == NULL) {
|
up_write(&sysfs_rwsema);
|
return -ENODEV;
|
}
|
|
for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
|
if (lcdMap[i].type != '.')
|
continue;
|
if (strncmp(buf, lcdMap[i].u.p.name, count) == 0) {
|
setChar(yld, i, chr);
|
break;
|
}
|
}
|
|
up_write(&sysfs_rwsema);
|
return count;
|
}
|
|
static ssize_t show_icon(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
return set_icon(dev, buf, count, buf[0]);
|
}
|
|
static ssize_t hide_icon(struct device *dev, struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
return set_icon(dev, buf, count, ' ');
|
}
|
|
/* Upload a ringtone to the device.
|
*/
|
|
/* Stores raw ringtone data in the phone */
|
static ssize_t store_ringtone(struct device *dev,
|
struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
struct yealink_dev *yld;
|
|
down_write(&sysfs_rwsema);
|
yld = dev_get_drvdata(dev);
|
if (yld == NULL) {
|
up_write(&sysfs_rwsema);
|
return -ENODEV;
|
}
|
|
/* TODO locking with async usb control interface??? */
|
yealink_set_ringtone(yld, (char *)buf, count);
|
up_write(&sysfs_rwsema);
|
return count;
|
}
|
|
#define _M444 S_IRUGO
|
#define _M664 S_IRUGO|S_IWUSR|S_IWGRP
|
#define _M220 S_IWUSR|S_IWGRP
|
|
static DEVICE_ATTR(map_seg7 , _M664, show_map , store_map );
|
static DEVICE_ATTR(line1 , _M664, show_line1 , store_line1 );
|
static DEVICE_ATTR(line2 , _M664, show_line2 , store_line2 );
|
static DEVICE_ATTR(line3 , _M664, show_line3 , store_line3 );
|
static DEVICE_ATTR(get_icons , _M444, get_icons , NULL );
|
static DEVICE_ATTR(show_icon , _M220, NULL , show_icon );
|
static DEVICE_ATTR(hide_icon , _M220, NULL , hide_icon );
|
static DEVICE_ATTR(ringtone , _M220, NULL , store_ringtone);
|
|
static struct attribute *yld_attributes[] = {
|
&dev_attr_line1.attr,
|
&dev_attr_line2.attr,
|
&dev_attr_line3.attr,
|
&dev_attr_get_icons.attr,
|
&dev_attr_show_icon.attr,
|
&dev_attr_hide_icon.attr,
|
&dev_attr_map_seg7.attr,
|
&dev_attr_ringtone.attr,
|
NULL
|
};
|
|
static const struct attribute_group yld_attr_group = {
|
.attrs = yld_attributes
|
};
|
|
/*******************************************************************************
|
* Linux interface and usb initialisation
|
******************************************************************************/
|
|
struct driver_info {
|
char *name;
|
};
|
|
static const struct driver_info info_P1K = {
|
.name = "Yealink usb-p1k",
|
};
|
|
static const struct usb_device_id usb_table [] = {
|
{
|
.match_flags = USB_DEVICE_ID_MATCH_DEVICE |
|
USB_DEVICE_ID_MATCH_INT_INFO,
|
.idVendor = 0x6993,
|
.idProduct = 0xb001,
|
.bInterfaceClass = USB_CLASS_HID,
|
.bInterfaceSubClass = 0,
|
.bInterfaceProtocol = 0,
|
.driver_info = (kernel_ulong_t)&info_P1K
|
},
|
{ }
|
};
|
|
static int usb_cleanup(struct yealink_dev *yld, int err)
|
{
|
if (yld == NULL)
|
return err;
|
|
if (yld->idev) {
|
if (err)
|
input_free_device(yld->idev);
|
else
|
input_unregister_device(yld->idev);
|
}
|
|
usb_free_urb(yld->urb_irq);
|
usb_free_urb(yld->urb_ctl);
|
|
kfree(yld->ctl_req);
|
usb_free_coherent(yld->udev, USB_PKT_LEN, yld->ctl_data, yld->ctl_dma);
|
usb_free_coherent(yld->udev, USB_PKT_LEN, yld->irq_data, yld->irq_dma);
|
|
kfree(yld);
|
return err;
|
}
|
|
static void usb_disconnect(struct usb_interface *intf)
|
{
|
struct yealink_dev *yld;
|
|
down_write(&sysfs_rwsema);
|
yld = usb_get_intfdata(intf);
|
sysfs_remove_group(&intf->dev.kobj, &yld_attr_group);
|
usb_set_intfdata(intf, NULL);
|
up_write(&sysfs_rwsema);
|
|
usb_cleanup(yld, 0);
|
}
|
|
static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
{
|
struct usb_device *udev = interface_to_usbdev (intf);
|
struct driver_info *nfo = (struct driver_info *)id->driver_info;
|
struct usb_host_interface *interface;
|
struct usb_endpoint_descriptor *endpoint;
|
struct yealink_dev *yld;
|
struct input_dev *input_dev;
|
int ret, pipe, i;
|
|
interface = intf->cur_altsetting;
|
|
if (interface->desc.bNumEndpoints < 1)
|
return -ENODEV;
|
|
endpoint = &interface->endpoint[0].desc;
|
if (!usb_endpoint_is_int_in(endpoint))
|
return -ENODEV;
|
|
yld = kzalloc(sizeof(struct yealink_dev), GFP_KERNEL);
|
if (!yld)
|
return -ENOMEM;
|
|
yld->udev = udev;
|
yld->intf = intf;
|
|
yld->idev = input_dev = input_allocate_device();
|
if (!input_dev)
|
return usb_cleanup(yld, -ENOMEM);
|
|
/* allocate usb buffers */
|
yld->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
|
GFP_KERNEL, &yld->irq_dma);
|
if (yld->irq_data == NULL)
|
return usb_cleanup(yld, -ENOMEM);
|
|
yld->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
|
GFP_KERNEL, &yld->ctl_dma);
|
if (!yld->ctl_data)
|
return usb_cleanup(yld, -ENOMEM);
|
|
yld->ctl_req = kmalloc(sizeof(*(yld->ctl_req)), GFP_KERNEL);
|
if (yld->ctl_req == NULL)
|
return usb_cleanup(yld, -ENOMEM);
|
|
/* allocate urb structures */
|
yld->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
|
if (yld->urb_irq == NULL)
|
return usb_cleanup(yld, -ENOMEM);
|
|
yld->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
|
if (yld->urb_ctl == NULL)
|
return usb_cleanup(yld, -ENOMEM);
|
|
/* get a handle to the interrupt data pipe */
|
pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
|
ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
|
if (ret != USB_PKT_LEN)
|
dev_err(&intf->dev, "invalid payload size %d, expected %zd\n",
|
ret, USB_PKT_LEN);
|
|
/* initialise irq urb */
|
usb_fill_int_urb(yld->urb_irq, udev, pipe, yld->irq_data,
|
USB_PKT_LEN,
|
urb_irq_callback,
|
yld, endpoint->bInterval);
|
yld->urb_irq->transfer_dma = yld->irq_dma;
|
yld->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
yld->urb_irq->dev = udev;
|
|
/* initialise ctl urb */
|
yld->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
|
USB_DIR_OUT;
|
yld->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
|
yld->ctl_req->wValue = cpu_to_le16(0x200);
|
yld->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
|
yld->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
|
|
usb_fill_control_urb(yld->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
|
(void *)yld->ctl_req, yld->ctl_data, USB_PKT_LEN,
|
urb_ctl_callback, yld);
|
yld->urb_ctl->transfer_dma = yld->ctl_dma;
|
yld->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
yld->urb_ctl->dev = udev;
|
|
/* find out the physical bus location */
|
usb_make_path(udev, yld->phys, sizeof(yld->phys));
|
strlcat(yld->phys, "/input0", sizeof(yld->phys));
|
|
/* register settings for the input device */
|
input_dev->name = nfo->name;
|
input_dev->phys = yld->phys;
|
usb_to_input_id(udev, &input_dev->id);
|
input_dev->dev.parent = &intf->dev;
|
|
input_set_drvdata(input_dev, yld);
|
|
input_dev->open = input_open;
|
input_dev->close = input_close;
|
/* input_dev->event = input_ev; TODO */
|
|
/* register available key events */
|
input_dev->evbit[0] = BIT_MASK(EV_KEY);
|
for (i = 0; i < 256; i++) {
|
int k = map_p1k_to_key(i);
|
if (k >= 0) {
|
set_bit(k & 0xff, input_dev->keybit);
|
if (k >> 8)
|
set_bit(k >> 8, input_dev->keybit);
|
}
|
}
|
|
ret = input_register_device(yld->idev);
|
if (ret)
|
return usb_cleanup(yld, ret);
|
|
usb_set_intfdata(intf, yld);
|
|
/* clear visible elements */
|
for (i = 0; i < ARRAY_SIZE(lcdMap); i++)
|
setChar(yld, i, ' ');
|
|
/* display driver version on LCD line 3 */
|
store_line3(&intf->dev, NULL,
|
DRIVER_VERSION, sizeof(DRIVER_VERSION));
|
|
/* Register sysfs hooks (don't care about failure) */
|
ret = sysfs_create_group(&intf->dev.kobj, &yld_attr_group);
|
return 0;
|
}
|
|
static struct usb_driver yealink_driver = {
|
.name = "yealink",
|
.probe = usb_probe,
|
.disconnect = usb_disconnect,
|
.id_table = usb_table,
|
};
|
|
module_usb_driver(yealink_driver);
|
|
MODULE_DEVICE_TABLE (usb, usb_table);
|
|
MODULE_AUTHOR("Henk Vergonet");
|
MODULE_DESCRIPTION("Yealink phone driver");
|
MODULE_LICENSE("GPL");
|
