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949 lines
24 KiB
949 lines
24 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Driver for the VoIP USB phones with CM109 chipsets. |
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* |
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* Copyright (C) 2007 - 2008 Alfred E. Heggestad <[email protected]> |
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*/ |
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|
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/* |
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* Tested devices: |
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* - Komunikate KIP1000 |
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* - Genius G-talk |
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* - Allied-Telesis Corega USBPH01 |
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* - ... |
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* |
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* This driver is based on the yealink.c driver |
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* |
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* Thanks to: |
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* - Authors of yealink.c |
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* - Thomas Reitmayr |
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* - Oliver Neukum for good review comments and code |
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* - Shaun Jackman <[email protected]> for Genius G-talk keymap |
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* - Dmitry Torokhov for valuable input and review |
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* |
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* Todo: |
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* - Read/write EEPROM |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/rwsem.h> |
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#include <linux/usb/input.h> |
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|
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#define DRIVER_VERSION "20080805" |
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#define DRIVER_AUTHOR "Alfred E. Heggestad" |
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#define DRIVER_DESC "CM109 phone driver" |
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|
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static char *phone = "kip1000"; |
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module_param(phone, charp, S_IRUSR); |
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MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01, atcom}"); |
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enum { |
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/* HID Registers */ |
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HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */ |
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HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */ |
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HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */ |
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HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */ |
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HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */ |
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HID_OR1 = 0x01, /* GPO - General Purpose Output */ |
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HID_OR2 = 0x02, /* Set GPIO to input/output mode */ |
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HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */ |
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|
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/* HID_IR0 */ |
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RECORD_MUTE = 1 << 3, |
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PLAYBACK_MUTE = 1 << 2, |
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VOLUME_DOWN = 1 << 1, |
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VOLUME_UP = 1 << 0, |
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|
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/* HID_OR0 */ |
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/* bits 7-6 |
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0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer |
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and SPDIF |
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1: HID_OR0-3 are used as generic HID registers |
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2: Values written to HID_OR0-3 are also mapped to MCU_CTRL, |
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EEPROM_DATA0-1, EEPROM_CTRL (see Note) |
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3: Reserved |
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*/ |
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HID_OR_GPO_BUZ_SPDIF = 0 << 6, |
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HID_OR_GENERIC_HID_REG = 1 << 6, |
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HID_OR_MAP_MCU_EEPROM = 2 << 6, |
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|
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BUZZER_ON = 1 << 5, |
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|
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/* up to 256 normal keys, up to 15 special key combinations */ |
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KEYMAP_SIZE = 256 + 15, |
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}; |
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|
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/* CM109 protocol packet */ |
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struct cm109_ctl_packet { |
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u8 byte[4]; |
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} __attribute__ ((packed)); |
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|
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enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) }; |
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|
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/* CM109 device structure */ |
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struct cm109_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; |
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|
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/* irq input channel */ |
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struct cm109_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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|
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/* control output channel */ |
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struct cm109_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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/* |
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* The 3 bitfields below are protected by ctl_submit_lock. |
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* They have to be separate since they are accessed from IRQ |
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* context. |
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*/ |
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unsigned irq_urb_pending:1; /* irq_urb is in flight */ |
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unsigned ctl_urb_pending:1; /* ctl_urb is in flight */ |
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unsigned buzzer_pending:1; /* need to issue buzz command */ |
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spinlock_t ctl_submit_lock; |
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|
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unsigned char buzzer_state; /* on/off */ |
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|
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/* flags */ |
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unsigned open:1; |
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unsigned resetting:1; |
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unsigned shutdown:1; |
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|
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/* This mutex protects writes to the above flags */ |
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struct mutex pm_mutex; |
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|
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unsigned short keymap[KEYMAP_SIZE]; |
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|
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char phys[64]; /* physical device path */ |
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int key_code; /* last reported key */ |
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int keybit; /* 0=new scan 1,2,4,8=scan columns */ |
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u8 gpi; /* Cached value of GPI (high nibble) */ |
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}; |
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|
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/****************************************************************************** |
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* CM109 key interface |
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*****************************************************************************/ |
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|
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static unsigned short special_keymap(int code) |
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{ |
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if (code > 0xff) { |
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switch (code - 0xff) { |
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case RECORD_MUTE: return KEY_MICMUTE; |
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case PLAYBACK_MUTE: return KEY_MUTE; |
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case VOLUME_DOWN: return KEY_VOLUMEDOWN; |
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case VOLUME_UP: return KEY_VOLUMEUP; |
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} |
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} |
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return KEY_RESERVED; |
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} |
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|
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/* Map device buttons to internal key events. |
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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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Komunikate KIP1000 Keyboard Matrix |
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|
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-> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10) |
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| | | | |
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<- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20) |
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| | | | |
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END - 7 -- 8 -- 9 --> GPI pin 6 (0x40) |
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| | | | |
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OK -- * -- 0 -- # --> GPI pin 7 (0x80) |
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| | | | |
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/|\ /|\ /|\ /|\ |
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| | | | |
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GPO |
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pin: 3 2 1 0 |
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0x8 0x4 0x2 0x1 |
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|
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*/ |
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static unsigned short keymap_kip1000(int scancode) |
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{ |
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switch (scancode) { /* phone key: */ |
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case 0x82: return KEY_NUMERIC_0; /* 0 */ |
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case 0x14: return KEY_NUMERIC_1; /* 1 */ |
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case 0x12: return KEY_NUMERIC_2; /* 2 */ |
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case 0x11: return KEY_NUMERIC_3; /* 3 */ |
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case 0x24: return KEY_NUMERIC_4; /* 4 */ |
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case 0x22: return KEY_NUMERIC_5; /* 5 */ |
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case 0x21: return KEY_NUMERIC_6; /* 6 */ |
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case 0x44: return KEY_NUMERIC_7; /* 7 */ |
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case 0x42: return KEY_NUMERIC_8; /* 8 */ |
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case 0x41: return KEY_NUMERIC_9; /* 9 */ |
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case 0x81: return KEY_NUMERIC_POUND; /* # */ |
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case 0x84: return KEY_NUMERIC_STAR; /* * */ |
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case 0x88: return KEY_ENTER; /* pickup */ |
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case 0x48: return KEY_ESC; /* hangup */ |
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case 0x28: return KEY_LEFT; /* IN */ |
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case 0x18: return KEY_RIGHT; /* OUT */ |
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default: return special_keymap(scancode); |
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} |
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} |
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|
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/* |
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Contributed by Shaun Jackman <[email protected]> |
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|
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Genius G-Talk keyboard matrix |
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0 1 2 3 |
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4: 0 4 8 Talk |
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5: 1 5 9 End |
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6: 2 6 # Up |
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7: 3 7 * Down |
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*/ |
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static unsigned short keymap_gtalk(int scancode) |
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{ |
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switch (scancode) { |
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case 0x11: return KEY_NUMERIC_0; |
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case 0x21: return KEY_NUMERIC_1; |
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case 0x41: return KEY_NUMERIC_2; |
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case 0x81: return KEY_NUMERIC_3; |
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case 0x12: return KEY_NUMERIC_4; |
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case 0x22: return KEY_NUMERIC_5; |
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case 0x42: return KEY_NUMERIC_6; |
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case 0x82: return KEY_NUMERIC_7; |
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case 0x14: return KEY_NUMERIC_8; |
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case 0x24: return KEY_NUMERIC_9; |
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case 0x44: return KEY_NUMERIC_POUND; /* # */ |
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case 0x84: return KEY_NUMERIC_STAR; /* * */ |
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case 0x18: return KEY_ENTER; /* Talk (green handset) */ |
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case 0x28: return KEY_ESC; /* End (red handset) */ |
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case 0x48: return KEY_UP; /* Menu up (rocker switch) */ |
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case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */ |
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default: return special_keymap(scancode); |
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} |
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} |
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|
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/* |
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* Keymap for Allied-Telesis Corega USBPH01 |
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* http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html |
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* |
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* Contributed by [email protected] |
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*/ |
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static unsigned short keymap_usbph01(int scancode) |
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{ |
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switch (scancode) { |
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case 0x11: return KEY_NUMERIC_0; /* 0 */ |
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case 0x21: return KEY_NUMERIC_1; /* 1 */ |
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case 0x41: return KEY_NUMERIC_2; /* 2 */ |
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case 0x81: return KEY_NUMERIC_3; /* 3 */ |
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case 0x12: return KEY_NUMERIC_4; /* 4 */ |
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case 0x22: return KEY_NUMERIC_5; /* 5 */ |
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case 0x42: return KEY_NUMERIC_6; /* 6 */ |
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case 0x82: return KEY_NUMERIC_7; /* 7 */ |
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case 0x14: return KEY_NUMERIC_8; /* 8 */ |
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case 0x24: return KEY_NUMERIC_9; /* 9 */ |
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case 0x44: return KEY_NUMERIC_POUND; /* # */ |
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case 0x84: return KEY_NUMERIC_STAR; /* * */ |
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case 0x18: return KEY_ENTER; /* pickup */ |
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case 0x28: return KEY_ESC; /* hangup */ |
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case 0x48: return KEY_LEFT; /* IN */ |
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case 0x88: return KEY_RIGHT; /* OUT */ |
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default: return special_keymap(scancode); |
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} |
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} |
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|
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/* |
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* Keymap for ATCom AU-100 |
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* http://www.atcom.cn/products.html |
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* http://www.packetizer.com/products/au100/ |
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* http://www.voip-info.org/wiki/view/AU-100 |
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* |
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* Contributed by [email protected] |
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*/ |
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static unsigned short keymap_atcom(int scancode) |
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{ |
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switch (scancode) { /* phone key: */ |
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case 0x82: return KEY_NUMERIC_0; /* 0 */ |
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case 0x11: return KEY_NUMERIC_1; /* 1 */ |
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case 0x12: return KEY_NUMERIC_2; /* 2 */ |
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case 0x14: return KEY_NUMERIC_3; /* 3 */ |
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case 0x21: return KEY_NUMERIC_4; /* 4 */ |
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case 0x22: return KEY_NUMERIC_5; /* 5 */ |
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case 0x24: return KEY_NUMERIC_6; /* 6 */ |
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case 0x41: return KEY_NUMERIC_7; /* 7 */ |
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case 0x42: return KEY_NUMERIC_8; /* 8 */ |
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case 0x44: return KEY_NUMERIC_9; /* 9 */ |
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case 0x84: return KEY_NUMERIC_POUND; /* # */ |
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case 0x81: return KEY_NUMERIC_STAR; /* * */ |
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case 0x18: return KEY_ENTER; /* pickup */ |
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case 0x28: return KEY_ESC; /* hangup */ |
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case 0x48: return KEY_LEFT; /* left arrow */ |
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case 0x88: return KEY_RIGHT; /* right arrow */ |
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default: return special_keymap(scancode); |
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} |
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} |
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static unsigned short (*keymap)(int) = keymap_kip1000; |
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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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static void report_key(struct cm109_dev *dev, int key) |
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{ |
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struct input_dev *idev = dev->idev; |
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|
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if (dev->key_code >= 0) { |
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/* old key up */ |
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input_report_key(idev, dev->key_code, 0); |
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} |
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dev->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, 1); |
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} |
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|
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input_sync(idev); |
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} |
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/* |
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* Converts data of special key presses (volume, mute) into events |
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* for the input subsystem, sends press-n-release for mute keys. |
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*/ |
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static void cm109_report_special(struct cm109_dev *dev) |
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{ |
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static const u8 autorelease = RECORD_MUTE | PLAYBACK_MUTE; |
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struct input_dev *idev = dev->idev; |
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u8 data = dev->irq_data->byte[HID_IR0]; |
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unsigned short keycode; |
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int i; |
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|
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for (i = 0; i < 4; i++) { |
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keycode = dev->keymap[0xff + BIT(i)]; |
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if (keycode == KEY_RESERVED) |
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continue; |
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|
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input_report_key(idev, keycode, data & BIT(i)); |
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if (data & autorelease & BIT(i)) { |
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input_sync(idev); |
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input_report_key(idev, keycode, 0); |
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} |
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} |
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input_sync(idev); |
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} |
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|
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/****************************************************************************** |
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* CM109 usb communication interface |
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*****************************************************************************/ |
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|
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static void cm109_submit_buzz_toggle(struct cm109_dev *dev) |
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{ |
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int error; |
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|
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if (dev->buzzer_state) |
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dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; |
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else |
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dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; |
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|
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error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); |
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if (error) |
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dev_err(&dev->intf->dev, |
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"%s: usb_submit_urb (urb_ctl) failed %d\n", |
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__func__, error); |
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} |
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|
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/* |
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* IRQ handler |
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*/ |
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static void cm109_urb_irq_callback(struct urb *urb) |
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{ |
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struct cm109_dev *dev = urb->context; |
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const int status = urb->status; |
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int error; |
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unsigned long flags; |
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|
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dev_dbg(&dev->intf->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n", |
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dev->irq_data->byte[0], |
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dev->irq_data->byte[1], |
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dev->irq_data->byte[2], |
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dev->irq_data->byte[3], |
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dev->keybit); |
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|
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if (status) { |
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if (status == -ESHUTDOWN) |
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return; |
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dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", |
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__func__, status); |
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goto out; |
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} |
|
|
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/* Special keys */ |
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cm109_report_special(dev); |
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|
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/* Scan key column */ |
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if (dev->keybit == 0xf) { |
|
|
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/* Any changes ? */ |
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if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0)) |
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goto out; |
|
|
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dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0; |
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dev->keybit = 0x1; |
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} else { |
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report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]); |
|
|
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dev->keybit <<= 1; |
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if (dev->keybit > 0x8) |
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dev->keybit = 0xf; |
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} |
|
|
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out: |
|
|
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spin_lock_irqsave(&dev->ctl_submit_lock, flags); |
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|
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dev->irq_urb_pending = 0; |
|
|
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if (likely(!dev->shutdown)) { |
|
|
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if (dev->buzzer_state) |
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dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; |
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else |
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dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; |
|
|
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dev->ctl_data->byte[HID_OR1] = dev->keybit; |
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dev->ctl_data->byte[HID_OR2] = dev->keybit; |
|
|
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dev->buzzer_pending = 0; |
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dev->ctl_urb_pending = 1; |
|
|
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error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); |
|
if (error) |
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dev_err(&dev->intf->dev, |
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"%s: usb_submit_urb (urb_ctl) failed %d\n", |
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__func__, error); |
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} |
|
|
|
spin_unlock_irqrestore(&dev->ctl_submit_lock, flags); |
|
} |
|
|
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static void cm109_urb_ctl_callback(struct urb *urb) |
|
{ |
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struct cm109_dev *dev = urb->context; |
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const int status = urb->status; |
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int error; |
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unsigned long flags; |
|
|
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dev_dbg(&dev->intf->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n", |
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dev->ctl_data->byte[0], |
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dev->ctl_data->byte[1], |
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dev->ctl_data->byte[2], |
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dev->ctl_data->byte[3]); |
|
|
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if (status) { |
|
if (status == -ESHUTDOWN) |
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return; |
|
dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", |
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__func__, status); |
|
} |
|
|
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spin_lock_irqsave(&dev->ctl_submit_lock, flags); |
|
|
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dev->ctl_urb_pending = 0; |
|
|
|
if (likely(!dev->shutdown)) { |
|
|
|
if (dev->buzzer_pending || status) { |
|
dev->buzzer_pending = 0; |
|
dev->ctl_urb_pending = 1; |
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cm109_submit_buzz_toggle(dev); |
|
} else if (likely(!dev->irq_urb_pending)) { |
|
/* ask for key data */ |
|
dev->irq_urb_pending = 1; |
|
error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC); |
|
if (error) |
|
dev_err(&dev->intf->dev, |
|
"%s: usb_submit_urb (urb_irq) failed %d\n", |
|
__func__, error); |
|
} |
|
} |
|
|
|
spin_unlock_irqrestore(&dev->ctl_submit_lock, flags); |
|
} |
|
|
|
static void cm109_toggle_buzzer_async(struct cm109_dev *dev) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&dev->ctl_submit_lock, flags); |
|
|
|
if (dev->ctl_urb_pending) { |
|
/* URB completion will resubmit */ |
|
dev->buzzer_pending = 1; |
|
} else { |
|
dev->ctl_urb_pending = 1; |
|
cm109_submit_buzz_toggle(dev); |
|
} |
|
|
|
spin_unlock_irqrestore(&dev->ctl_submit_lock, flags); |
|
} |
|
|
|
static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on) |
|
{ |
|
int error; |
|
|
|
if (on) |
|
dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; |
|
else |
|
dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; |
|
|
|
error = usb_control_msg(dev->udev, |
|
usb_sndctrlpipe(dev->udev, 0), |
|
dev->ctl_req->bRequest, |
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dev->ctl_req->bRequestType, |
|
le16_to_cpu(dev->ctl_req->wValue), |
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le16_to_cpu(dev->ctl_req->wIndex), |
|
dev->ctl_data, |
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USB_PKT_LEN, USB_CTRL_SET_TIMEOUT); |
|
if (error < 0 && error != -EINTR) |
|
dev_err(&dev->intf->dev, "%s: usb_control_msg() failed %d\n", |
|
__func__, error); |
|
} |
|
|
|
static void cm109_stop_traffic(struct cm109_dev *dev) |
|
{ |
|
dev->shutdown = 1; |
|
/* |
|
* Make sure other CPUs see this |
|
*/ |
|
smp_wmb(); |
|
|
|
usb_kill_urb(dev->urb_ctl); |
|
usb_kill_urb(dev->urb_irq); |
|
|
|
cm109_toggle_buzzer_sync(dev, 0); |
|
|
|
dev->shutdown = 0; |
|
smp_wmb(); |
|
} |
|
|
|
static void cm109_restore_state(struct cm109_dev *dev) |
|
{ |
|
if (dev->open) { |
|
/* |
|
* Restore buzzer state. |
|
* This will also kick regular URB submission |
|
*/ |
|
cm109_toggle_buzzer_async(dev); |
|
} |
|
} |
|
|
|
/****************************************************************************** |
|
* input event interface |
|
*****************************************************************************/ |
|
|
|
static int cm109_input_open(struct input_dev *idev) |
|
{ |
|
struct cm109_dev *dev = input_get_drvdata(idev); |
|
int error; |
|
|
|
error = usb_autopm_get_interface(dev->intf); |
|
if (error < 0) { |
|
dev_err(&idev->dev, "%s - cannot autoresume, result %d\n", |
|
__func__, error); |
|
return error; |
|
} |
|
|
|
mutex_lock(&dev->pm_mutex); |
|
|
|
dev->buzzer_state = 0; |
|
dev->key_code = -1; /* no keys pressed */ |
|
dev->keybit = 0xf; |
|
|
|
/* issue INIT */ |
|
dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF; |
|
dev->ctl_data->byte[HID_OR1] = dev->keybit; |
|
dev->ctl_data->byte[HID_OR2] = dev->keybit; |
|
dev->ctl_data->byte[HID_OR3] = 0x00; |
|
|
|
dev->ctl_urb_pending = 1; |
|
error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL); |
|
if (error) { |
|
dev->ctl_urb_pending = 0; |
|
dev_err(&dev->intf->dev, "%s: usb_submit_urb (urb_ctl) failed %d\n", |
|
__func__, error); |
|
} else { |
|
dev->open = 1; |
|
} |
|
|
|
mutex_unlock(&dev->pm_mutex); |
|
|
|
if (error) |
|
usb_autopm_put_interface(dev->intf); |
|
|
|
return error; |
|
} |
|
|
|
static void cm109_input_close(struct input_dev *idev) |
|
{ |
|
struct cm109_dev *dev = input_get_drvdata(idev); |
|
|
|
mutex_lock(&dev->pm_mutex); |
|
|
|
/* |
|
* Once we are here event delivery is stopped so we |
|
* don't need to worry about someone starting buzzer |
|
* again |
|
*/ |
|
cm109_stop_traffic(dev); |
|
dev->open = 0; |
|
|
|
mutex_unlock(&dev->pm_mutex); |
|
|
|
usb_autopm_put_interface(dev->intf); |
|
} |
|
|
|
static int cm109_input_ev(struct input_dev *idev, unsigned int type, |
|
unsigned int code, int value) |
|
{ |
|
struct cm109_dev *dev = input_get_drvdata(idev); |
|
|
|
dev_dbg(&dev->intf->dev, |
|
"input_ev: type=%u code=%u value=%d\n", type, code, value); |
|
|
|
if (type != EV_SND) |
|
return -EINVAL; |
|
|
|
switch (code) { |
|
case SND_TONE: |
|
case SND_BELL: |
|
dev->buzzer_state = !!value; |
|
if (!dev->resetting) |
|
cm109_toggle_buzzer_async(dev); |
|
return 0; |
|
|
|
default: |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
|
|
/****************************************************************************** |
|
* Linux interface and usb initialisation |
|
*****************************************************************************/ |
|
|
|
struct driver_info { |
|
char *name; |
|
}; |
|
|
|
static const struct driver_info info_cm109 = { |
|
.name = "CM109 USB driver", |
|
}; |
|
|
|
enum { |
|
VENDOR_ID = 0x0d8c, /* C-Media Electronics */ |
|
PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */ |
|
}; |
|
|
|
/* table of devices that work with this driver */ |
|
static const struct usb_device_id cm109_usb_table[] = { |
|
{ |
|
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
|
USB_DEVICE_ID_MATCH_INT_INFO, |
|
.idVendor = VENDOR_ID, |
|
.idProduct = PRODUCT_ID_CM109, |
|
.bInterfaceClass = USB_CLASS_HID, |
|
.bInterfaceSubClass = 0, |
|
.bInterfaceProtocol = 0, |
|
.driver_info = (kernel_ulong_t) &info_cm109 |
|
}, |
|
/* you can add more devices here with product ID 0x0008 - 0x000f */ |
|
{ } |
|
}; |
|
|
|
static void cm109_usb_cleanup(struct cm109_dev *dev) |
|
{ |
|
kfree(dev->ctl_req); |
|
usb_free_coherent(dev->udev, USB_PKT_LEN, dev->ctl_data, dev->ctl_dma); |
|
usb_free_coherent(dev->udev, USB_PKT_LEN, dev->irq_data, dev->irq_dma); |
|
|
|
usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */ |
|
usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */ |
|
kfree(dev); |
|
} |
|
|
|
static void cm109_usb_disconnect(struct usb_interface *interface) |
|
{ |
|
struct cm109_dev *dev = usb_get_intfdata(interface); |
|
|
|
usb_set_intfdata(interface, NULL); |
|
input_unregister_device(dev->idev); |
|
cm109_usb_cleanup(dev); |
|
} |
|
|
|
static int cm109_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 cm109_dev *dev; |
|
struct input_dev *input_dev = NULL; |
|
int ret, pipe, i; |
|
int error = -ENOMEM; |
|
|
|
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; |
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
|
if (!dev) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&dev->ctl_submit_lock); |
|
mutex_init(&dev->pm_mutex); |
|
|
|
dev->udev = udev; |
|
dev->intf = intf; |
|
|
|
dev->idev = input_dev = input_allocate_device(); |
|
if (!input_dev) |
|
goto err_out; |
|
|
|
/* allocate usb buffers */ |
|
dev->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN, |
|
GFP_KERNEL, &dev->irq_dma); |
|
if (!dev->irq_data) |
|
goto err_out; |
|
|
|
dev->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN, |
|
GFP_KERNEL, &dev->ctl_dma); |
|
if (!dev->ctl_data) |
|
goto err_out; |
|
|
|
dev->ctl_req = kmalloc(sizeof(*(dev->ctl_req)), GFP_KERNEL); |
|
if (!dev->ctl_req) |
|
goto err_out; |
|
|
|
/* allocate urb structures */ |
|
dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!dev->urb_irq) |
|
goto err_out; |
|
|
|
dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!dev->urb_ctl) |
|
goto err_out; |
|
|
|
/* 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 %d\n", |
|
ret, USB_PKT_LEN); |
|
|
|
/* initialise irq urb */ |
|
usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data, |
|
USB_PKT_LEN, |
|
cm109_urb_irq_callback, dev, endpoint->bInterval); |
|
dev->urb_irq->transfer_dma = dev->irq_dma; |
|
dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
|
dev->urb_irq->dev = udev; |
|
|
|
/* initialise ctl urb */ |
|
dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | |
|
USB_DIR_OUT; |
|
dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION; |
|
dev->ctl_req->wValue = cpu_to_le16(0x200); |
|
dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber); |
|
dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN); |
|
|
|
usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0), |
|
(void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN, |
|
cm109_urb_ctl_callback, dev); |
|
dev->urb_ctl->transfer_dma = dev->ctl_dma; |
|
dev->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
|
dev->urb_ctl->dev = udev; |
|
|
|
/* find out the physical bus location */ |
|
usb_make_path(udev, dev->phys, sizeof(dev->phys)); |
|
strlcat(dev->phys, "/input0", sizeof(dev->phys)); |
|
|
|
/* register settings for the input device */ |
|
input_dev->name = nfo->name; |
|
input_dev->phys = dev->phys; |
|
usb_to_input_id(udev, &input_dev->id); |
|
input_dev->dev.parent = &intf->dev; |
|
|
|
input_set_drvdata(input_dev, dev); |
|
input_dev->open = cm109_input_open; |
|
input_dev->close = cm109_input_close; |
|
input_dev->event = cm109_input_ev; |
|
|
|
input_dev->keycode = dev->keymap; |
|
input_dev->keycodesize = sizeof(unsigned char); |
|
input_dev->keycodemax = ARRAY_SIZE(dev->keymap); |
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND); |
|
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); |
|
|
|
/* register available key events */ |
|
for (i = 0; i < KEYMAP_SIZE; i++) { |
|
unsigned short k = keymap(i); |
|
dev->keymap[i] = k; |
|
__set_bit(k, input_dev->keybit); |
|
} |
|
__clear_bit(KEY_RESERVED, input_dev->keybit); |
|
|
|
error = input_register_device(dev->idev); |
|
if (error) |
|
goto err_out; |
|
|
|
usb_set_intfdata(intf, dev); |
|
|
|
return 0; |
|
|
|
err_out: |
|
input_free_device(input_dev); |
|
cm109_usb_cleanup(dev); |
|
return error; |
|
} |
|
|
|
static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message) |
|
{ |
|
struct cm109_dev *dev = usb_get_intfdata(intf); |
|
|
|
dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event); |
|
|
|
mutex_lock(&dev->pm_mutex); |
|
cm109_stop_traffic(dev); |
|
mutex_unlock(&dev->pm_mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static int cm109_usb_resume(struct usb_interface *intf) |
|
{ |
|
struct cm109_dev *dev = usb_get_intfdata(intf); |
|
|
|
dev_info(&intf->dev, "cm109: usb_resume\n"); |
|
|
|
mutex_lock(&dev->pm_mutex); |
|
cm109_restore_state(dev); |
|
mutex_unlock(&dev->pm_mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static int cm109_usb_pre_reset(struct usb_interface *intf) |
|
{ |
|
struct cm109_dev *dev = usb_get_intfdata(intf); |
|
|
|
mutex_lock(&dev->pm_mutex); |
|
|
|
/* |
|
* Make sure input events don't try to toggle buzzer |
|
* while we are resetting |
|
*/ |
|
dev->resetting = 1; |
|
smp_wmb(); |
|
|
|
cm109_stop_traffic(dev); |
|
|
|
return 0; |
|
} |
|
|
|
static int cm109_usb_post_reset(struct usb_interface *intf) |
|
{ |
|
struct cm109_dev *dev = usb_get_intfdata(intf); |
|
|
|
dev->resetting = 0; |
|
smp_wmb(); |
|
|
|
cm109_restore_state(dev); |
|
|
|
mutex_unlock(&dev->pm_mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static struct usb_driver cm109_driver = { |
|
.name = "cm109", |
|
.probe = cm109_usb_probe, |
|
.disconnect = cm109_usb_disconnect, |
|
.suspend = cm109_usb_suspend, |
|
.resume = cm109_usb_resume, |
|
.reset_resume = cm109_usb_resume, |
|
.pre_reset = cm109_usb_pre_reset, |
|
.post_reset = cm109_usb_post_reset, |
|
.id_table = cm109_usb_table, |
|
.supports_autosuspend = 1, |
|
}; |
|
|
|
static int __init cm109_select_keymap(void) |
|
{ |
|
/* Load the phone keymap */ |
|
if (!strcasecmp(phone, "kip1000")) { |
|
keymap = keymap_kip1000; |
|
printk(KERN_INFO KBUILD_MODNAME ": " |
|
"Keymap for Komunikate KIP1000 phone loaded\n"); |
|
} else if (!strcasecmp(phone, "gtalk")) { |
|
keymap = keymap_gtalk; |
|
printk(KERN_INFO KBUILD_MODNAME ": " |
|
"Keymap for Genius G-talk phone loaded\n"); |
|
} else if (!strcasecmp(phone, "usbph01")) { |
|
keymap = keymap_usbph01; |
|
printk(KERN_INFO KBUILD_MODNAME ": " |
|
"Keymap for Allied-Telesis Corega USBPH01 phone loaded\n"); |
|
} else if (!strcasecmp(phone, "atcom")) { |
|
keymap = keymap_atcom; |
|
printk(KERN_INFO KBUILD_MODNAME ": " |
|
"Keymap for ATCom AU-100 phone loaded\n"); |
|
} else { |
|
printk(KERN_ERR KBUILD_MODNAME ": " |
|
"Unsupported phone: %s\n", phone); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int __init cm109_init(void) |
|
{ |
|
int err; |
|
|
|
err = cm109_select_keymap(); |
|
if (err) |
|
return err; |
|
|
|
err = usb_register(&cm109_driver); |
|
if (err) |
|
return err; |
|
|
|
printk(KERN_INFO KBUILD_MODNAME ": " |
|
DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static void __exit cm109_exit(void) |
|
{ |
|
usb_deregister(&cm109_driver); |
|
} |
|
|
|
module_init(cm109_init); |
|
module_exit(cm109_exit); |
|
|
|
MODULE_DEVICE_TABLE(usb, cm109_usb_table); |
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR); |
|
MODULE_DESCRIPTION(DRIVER_DESC); |
|
MODULE_LICENSE("GPL");
|
|
|