1c04148f9SAlfred E. Heggestad /* 2c04148f9SAlfred E. Heggestad * Driver for the VoIP USB phones with CM109 chipsets. 3c04148f9SAlfred E. Heggestad * 4c04148f9SAlfred E. Heggestad * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org> 5c04148f9SAlfred E. Heggestad * 6c04148f9SAlfred E. Heggestad * This program is free software; you can redistribute it and/or 7c04148f9SAlfred E. Heggestad * modify it under the terms of the GNU General Public License as 8c04148f9SAlfred E. Heggestad * published by the Free Software Foundation, version 2. 9c04148f9SAlfred E. Heggestad */ 10c04148f9SAlfred E. Heggestad 11c04148f9SAlfred E. Heggestad /* 12c04148f9SAlfred E. Heggestad * Tested devices: 13c04148f9SAlfred E. Heggestad * - Komunikate KIP1000 14c04148f9SAlfred E. Heggestad * - Genius G-talk 15c04148f9SAlfred E. Heggestad * - Allied-Telesis Corega USBPH01 16c04148f9SAlfred E. Heggestad * - ... 17c04148f9SAlfred E. Heggestad * 18c04148f9SAlfred E. Heggestad * This driver is based on the yealink.c driver 19c04148f9SAlfred E. Heggestad * 20c04148f9SAlfred E. Heggestad * Thanks to: 21c04148f9SAlfred E. Heggestad * - Authors of yealink.c 22c04148f9SAlfred E. Heggestad * - Thomas Reitmayr 23c04148f9SAlfred E. Heggestad * - Oliver Neukum for good review comments and code 24c04148f9SAlfred E. Heggestad * - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap 25c04148f9SAlfred E. Heggestad * - Dmitry Torokhov for valuable input and review 26c04148f9SAlfred E. Heggestad * 27c04148f9SAlfred E. Heggestad * Todo: 28c04148f9SAlfred E. Heggestad * - Read/write EEPROM 29c04148f9SAlfred E. Heggestad */ 30c04148f9SAlfred E. Heggestad 31c04148f9SAlfred E. Heggestad #include <linux/kernel.h> 32c04148f9SAlfred E. Heggestad #include <linux/init.h> 33c04148f9SAlfred E. Heggestad #include <linux/slab.h> 34c04148f9SAlfred E. Heggestad #include <linux/module.h> 35c04148f9SAlfred E. Heggestad #include <linux/moduleparam.h> 36c04148f9SAlfred E. Heggestad #include <linux/rwsem.h> 37c04148f9SAlfred E. Heggestad #include <linux/usb/input.h> 38c04148f9SAlfred E. Heggestad 39c04148f9SAlfred E. Heggestad #define DRIVER_VERSION "20080805" 40c04148f9SAlfred E. Heggestad #define DRIVER_AUTHOR "Alfred E. Heggestad" 41c04148f9SAlfred E. Heggestad #define DRIVER_DESC "CM109 phone driver" 42c04148f9SAlfred E. Heggestad 43c04148f9SAlfred E. Heggestad static char *phone = "kip1000"; 44c04148f9SAlfred E. Heggestad module_param(phone, charp, S_IRUSR); 45c04148f9SAlfred E. Heggestad MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01}"); 46c04148f9SAlfred E. Heggestad 47c04148f9SAlfred E. Heggestad enum { 48c04148f9SAlfred E. Heggestad /* HID Registers */ 49c04148f9SAlfred E. Heggestad HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */ 50c04148f9SAlfred E. Heggestad HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */ 51c04148f9SAlfred E. Heggestad HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */ 52c04148f9SAlfred E. Heggestad HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */ 53c04148f9SAlfred E. Heggestad HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */ 54c04148f9SAlfred E. Heggestad HID_OR1 = 0x01, /* GPO - General Purpose Output */ 55c04148f9SAlfred E. Heggestad HID_OR2 = 0x02, /* Set GPIO to input/output mode */ 56c04148f9SAlfred E. Heggestad HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */ 57c04148f9SAlfred E. Heggestad 58c04148f9SAlfred E. Heggestad /* HID_IR0 */ 59c04148f9SAlfred E. Heggestad RECORD_MUTE = 1 << 3, 60c04148f9SAlfred E. Heggestad PLAYBACK_MUTE = 1 << 2, 61c04148f9SAlfred E. Heggestad VOLUME_DOWN = 1 << 1, 62c04148f9SAlfred E. Heggestad VOLUME_UP = 1 << 0, 63c04148f9SAlfred E. Heggestad 64c04148f9SAlfred E. Heggestad /* HID_OR0 */ 65c04148f9SAlfred E. Heggestad /* bits 7-6 66c04148f9SAlfred E. Heggestad 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer 67c04148f9SAlfred E. Heggestad and SPDIF 68c04148f9SAlfred E. Heggestad 1: HID_OR0-3 are used as generic HID registers 69c04148f9SAlfred E. Heggestad 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL, 70c04148f9SAlfred E. Heggestad EEPROM_DATA0-1, EEPROM_CTRL (see Note) 71c04148f9SAlfred E. Heggestad 3: Reserved 72c04148f9SAlfred E. Heggestad */ 73c04148f9SAlfred E. Heggestad HID_OR_GPO_BUZ_SPDIF = 0 << 6, 74c04148f9SAlfred E. Heggestad HID_OR_GENERIC_HID_REG = 1 << 6, 75c04148f9SAlfred E. Heggestad HID_OR_MAP_MCU_EEPROM = 2 << 6, 76c04148f9SAlfred E. Heggestad 77c04148f9SAlfred E. Heggestad BUZZER_ON = 1 << 5, 78c04148f9SAlfred E. Heggestad 79c04148f9SAlfred E. Heggestad /* up to 256 normal keys, up to 16 special keys */ 80c04148f9SAlfred E. Heggestad KEYMAP_SIZE = 256 + 16, 81c04148f9SAlfred E. Heggestad }; 82c04148f9SAlfred E. Heggestad 83c04148f9SAlfred E. Heggestad /* CM109 protocol packet */ 84c04148f9SAlfred E. Heggestad struct cm109_ctl_packet { 85c04148f9SAlfred E. Heggestad u8 byte[4]; 86c04148f9SAlfred E. Heggestad } __attribute__ ((packed)); 87c04148f9SAlfred E. Heggestad 88c04148f9SAlfred E. Heggestad enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) }; 89c04148f9SAlfred E. Heggestad 90c04148f9SAlfred E. Heggestad /* CM109 device structure */ 91c04148f9SAlfred E. Heggestad struct cm109_dev { 92c04148f9SAlfred E. Heggestad struct input_dev *idev; /* input device */ 93c04148f9SAlfred E. Heggestad struct usb_device *udev; /* usb device */ 94c04148f9SAlfred E. Heggestad struct usb_interface *intf; 95c04148f9SAlfred E. Heggestad 96c04148f9SAlfred E. Heggestad /* irq input channel */ 97c04148f9SAlfred E. Heggestad struct cm109_ctl_packet *irq_data; 98c04148f9SAlfred E. Heggestad dma_addr_t irq_dma; 99c04148f9SAlfred E. Heggestad struct urb *urb_irq; 100c04148f9SAlfred E. Heggestad 101c04148f9SAlfred E. Heggestad /* control output channel */ 102c04148f9SAlfred E. Heggestad struct cm109_ctl_packet *ctl_data; 103c04148f9SAlfred E. Heggestad dma_addr_t ctl_dma; 104c04148f9SAlfred E. Heggestad struct usb_ctrlrequest *ctl_req; 105c04148f9SAlfred E. Heggestad dma_addr_t ctl_req_dma; 106c04148f9SAlfred E. Heggestad struct urb *urb_ctl; 107c04148f9SAlfred E. Heggestad /* 108c04148f9SAlfred E. Heggestad * The 3 bitfields below are protected by ctl_submit_lock. 109c04148f9SAlfred E. Heggestad * They have to be separate since they are accessed from IRQ 110c04148f9SAlfred E. Heggestad * context. 111c04148f9SAlfred E. Heggestad */ 112c04148f9SAlfred E. Heggestad unsigned irq_urb_pending:1; /* irq_urb is in flight */ 113c04148f9SAlfred E. Heggestad unsigned ctl_urb_pending:1; /* ctl_urb is in flight */ 114c04148f9SAlfred E. Heggestad unsigned buzzer_pending:1; /* need to issue buzz command */ 115c04148f9SAlfred E. Heggestad spinlock_t ctl_submit_lock; 116c04148f9SAlfred E. Heggestad 117c04148f9SAlfred E. Heggestad unsigned char buzzer_state; /* on/off */ 118c04148f9SAlfred E. Heggestad 119c04148f9SAlfred E. Heggestad /* flags */ 120c04148f9SAlfred E. Heggestad unsigned open:1; 121c04148f9SAlfred E. Heggestad unsigned resetting:1; 122c04148f9SAlfred E. Heggestad unsigned shutdown:1; 123c04148f9SAlfred E. Heggestad 124c04148f9SAlfred E. Heggestad /* This mutex protects writes to the above flags */ 125c04148f9SAlfred E. Heggestad struct mutex pm_mutex; 126c04148f9SAlfred E. Heggestad 127c04148f9SAlfred E. Heggestad unsigned short keymap[KEYMAP_SIZE]; 128c04148f9SAlfred E. Heggestad 129c04148f9SAlfred E. Heggestad char phys[64]; /* physical device path */ 130c04148f9SAlfred E. Heggestad int key_code; /* last reported key */ 131c04148f9SAlfred E. Heggestad int keybit; /* 0=new scan 1,2,4,8=scan columns */ 132c04148f9SAlfred E. Heggestad u8 gpi; /* Cached value of GPI (high nibble) */ 133c04148f9SAlfred E. Heggestad }; 134c04148f9SAlfred E. Heggestad 135c04148f9SAlfred E. Heggestad /****************************************************************************** 136c04148f9SAlfred E. Heggestad * CM109 key interface 137c04148f9SAlfred E. Heggestad *****************************************************************************/ 138c04148f9SAlfred E. Heggestad 139c04148f9SAlfred E. Heggestad static unsigned short special_keymap(int code) 140c04148f9SAlfred E. Heggestad { 141c04148f9SAlfred E. Heggestad if (code > 0xff) { 142c04148f9SAlfred E. Heggestad switch (code - 0xff) { 143c04148f9SAlfred E. Heggestad case RECORD_MUTE: return KEY_MUTE; 144c04148f9SAlfred E. Heggestad case PLAYBACK_MUTE: return KEY_MUTE; 145c04148f9SAlfred E. Heggestad case VOLUME_DOWN: return KEY_VOLUMEDOWN; 146c04148f9SAlfred E. Heggestad case VOLUME_UP: return KEY_VOLUMEUP; 147c04148f9SAlfred E. Heggestad } 148c04148f9SAlfred E. Heggestad } 149c04148f9SAlfred E. Heggestad return KEY_RESERVED; 150c04148f9SAlfred E. Heggestad } 151c04148f9SAlfred E. Heggestad 152c04148f9SAlfred E. Heggestad /* Map device buttons to internal key events. 153c04148f9SAlfred E. Heggestad * 154c04148f9SAlfred E. Heggestad * The "up" and "down" keys, are symbolised by arrows on the button. 155c04148f9SAlfred E. Heggestad * The "pickup" and "hangup" keys are symbolised by a green and red phone 156c04148f9SAlfred E. Heggestad * on the button. 157c04148f9SAlfred E. Heggestad 158c04148f9SAlfred E. Heggestad Komunikate KIP1000 Keyboard Matrix 159c04148f9SAlfred E. Heggestad 160c04148f9SAlfred E. Heggestad -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10) 161c04148f9SAlfred E. Heggestad | | | | 162c04148f9SAlfred E. Heggestad <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20) 163c04148f9SAlfred E. Heggestad | | | | 164c04148f9SAlfred E. Heggestad END - 7 -- 8 -- 9 --> GPI pin 6 (0x40) 165c04148f9SAlfred E. Heggestad | | | | 166c04148f9SAlfred E. Heggestad OK -- * -- 0 -- # --> GPI pin 7 (0x80) 167c04148f9SAlfred E. Heggestad | | | | 168c04148f9SAlfred E. Heggestad 169c04148f9SAlfred E. Heggestad /|\ /|\ /|\ /|\ 170c04148f9SAlfred E. Heggestad | | | | 171c04148f9SAlfred E. Heggestad GPO 172c04148f9SAlfred E. Heggestad pin: 3 2 1 0 173c04148f9SAlfred E. Heggestad 0x8 0x4 0x2 0x1 174c04148f9SAlfred E. Heggestad 175c04148f9SAlfred E. Heggestad */ 176c04148f9SAlfred E. Heggestad static unsigned short keymap_kip1000(int scancode) 177c04148f9SAlfred E. Heggestad { 178c04148f9SAlfred E. Heggestad switch (scancode) { /* phone key: */ 179c04148f9SAlfred E. Heggestad case 0x82: return KEY_NUMERIC_0; /* 0 */ 180c04148f9SAlfred E. Heggestad case 0x14: return KEY_NUMERIC_1; /* 1 */ 181c04148f9SAlfred E. Heggestad case 0x12: return KEY_NUMERIC_2; /* 2 */ 182c04148f9SAlfred E. Heggestad case 0x11: return KEY_NUMERIC_3; /* 3 */ 183c04148f9SAlfred E. Heggestad case 0x24: return KEY_NUMERIC_4; /* 4 */ 184c04148f9SAlfred E. Heggestad case 0x22: return KEY_NUMERIC_5; /* 5 */ 185c04148f9SAlfred E. Heggestad case 0x21: return KEY_NUMERIC_6; /* 6 */ 186c04148f9SAlfred E. Heggestad case 0x44: return KEY_NUMERIC_7; /* 7 */ 187c04148f9SAlfred E. Heggestad case 0x42: return KEY_NUMERIC_8; /* 8 */ 188c04148f9SAlfred E. Heggestad case 0x41: return KEY_NUMERIC_9; /* 9 */ 189c04148f9SAlfred E. Heggestad case 0x81: return KEY_NUMERIC_POUND; /* # */ 190c04148f9SAlfred E. Heggestad case 0x84: return KEY_NUMERIC_STAR; /* * */ 191c04148f9SAlfred E. Heggestad case 0x88: return KEY_ENTER; /* pickup */ 192c04148f9SAlfred E. Heggestad case 0x48: return KEY_ESC; /* hangup */ 193c04148f9SAlfred E. Heggestad case 0x28: return KEY_LEFT; /* IN */ 194c04148f9SAlfred E. Heggestad case 0x18: return KEY_RIGHT; /* OUT */ 195c04148f9SAlfred E. Heggestad default: return special_keymap(scancode); 196c04148f9SAlfred E. Heggestad } 197c04148f9SAlfred E. Heggestad } 198c04148f9SAlfred E. Heggestad 199c04148f9SAlfred E. Heggestad /* 200c04148f9SAlfred E. Heggestad Contributed by Shaun Jackman <sjackman@gmail.com> 201c04148f9SAlfred E. Heggestad 202c04148f9SAlfred E. Heggestad Genius G-Talk keyboard matrix 203c04148f9SAlfred E. Heggestad 0 1 2 3 204c04148f9SAlfred E. Heggestad 4: 0 4 8 Talk 205c04148f9SAlfred E. Heggestad 5: 1 5 9 End 206c04148f9SAlfred E. Heggestad 6: 2 6 # Up 207c04148f9SAlfred E. Heggestad 7: 3 7 * Down 208c04148f9SAlfred E. Heggestad */ 209c04148f9SAlfred E. Heggestad static unsigned short keymap_gtalk(int scancode) 210c04148f9SAlfred E. Heggestad { 211c04148f9SAlfred E. Heggestad switch (scancode) { 212c04148f9SAlfred E. Heggestad case 0x11: return KEY_NUMERIC_0; 213c04148f9SAlfred E. Heggestad case 0x21: return KEY_NUMERIC_1; 214c04148f9SAlfred E. Heggestad case 0x41: return KEY_NUMERIC_2; 215c04148f9SAlfred E. Heggestad case 0x81: return KEY_NUMERIC_3; 216c04148f9SAlfred E. Heggestad case 0x12: return KEY_NUMERIC_4; 217c04148f9SAlfred E. Heggestad case 0x22: return KEY_NUMERIC_5; 218c04148f9SAlfred E. Heggestad case 0x42: return KEY_NUMERIC_6; 219c04148f9SAlfred E. Heggestad case 0x82: return KEY_NUMERIC_7; 220c04148f9SAlfred E. Heggestad case 0x14: return KEY_NUMERIC_8; 221c04148f9SAlfred E. Heggestad case 0x24: return KEY_NUMERIC_9; 222c04148f9SAlfred E. Heggestad case 0x44: return KEY_NUMERIC_POUND; /* # */ 223c04148f9SAlfred E. Heggestad case 0x84: return KEY_NUMERIC_STAR; /* * */ 224c04148f9SAlfred E. Heggestad case 0x18: return KEY_ENTER; /* Talk (green handset) */ 225c04148f9SAlfred E. Heggestad case 0x28: return KEY_ESC; /* End (red handset) */ 226c04148f9SAlfred E. Heggestad case 0x48: return KEY_UP; /* Menu up (rocker switch) */ 227c04148f9SAlfred E. Heggestad case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */ 228c04148f9SAlfred E. Heggestad default: return special_keymap(scancode); 229c04148f9SAlfred E. Heggestad } 230c04148f9SAlfred E. Heggestad } 231c04148f9SAlfred E. Heggestad 232c04148f9SAlfred E. Heggestad /* 233c04148f9SAlfred E. Heggestad * Keymap for Allied-Telesis Corega USBPH01 234c04148f9SAlfred E. Heggestad * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html 235c04148f9SAlfred E. Heggestad * 236c04148f9SAlfred E. Heggestad * Contributed by july@nat.bg 237c04148f9SAlfred E. Heggestad */ 238c04148f9SAlfred E. Heggestad static unsigned short keymap_usbph01(int scancode) 239c04148f9SAlfred E. Heggestad { 240c04148f9SAlfred E. Heggestad switch (scancode) { 241c04148f9SAlfred E. Heggestad case 0x11: return KEY_NUMERIC_0; /* 0 */ 242c04148f9SAlfred E. Heggestad case 0x21: return KEY_NUMERIC_1; /* 1 */ 243c04148f9SAlfred E. Heggestad case 0x41: return KEY_NUMERIC_2; /* 2 */ 244c04148f9SAlfred E. Heggestad case 0x81: return KEY_NUMERIC_3; /* 3 */ 245c04148f9SAlfred E. Heggestad case 0x12: return KEY_NUMERIC_4; /* 4 */ 246c04148f9SAlfred E. Heggestad case 0x22: return KEY_NUMERIC_5; /* 5 */ 247c04148f9SAlfred E. Heggestad case 0x42: return KEY_NUMERIC_6; /* 6 */ 248c04148f9SAlfred E. Heggestad case 0x82: return KEY_NUMERIC_7; /* 7 */ 249c04148f9SAlfred E. Heggestad case 0x14: return KEY_NUMERIC_8; /* 8 */ 250c04148f9SAlfred E. Heggestad case 0x24: return KEY_NUMERIC_9; /* 9 */ 251c04148f9SAlfred E. Heggestad case 0x44: return KEY_NUMERIC_POUND; /* # */ 252c04148f9SAlfred E. Heggestad case 0x84: return KEY_NUMERIC_STAR; /* * */ 253c04148f9SAlfred E. Heggestad case 0x18: return KEY_ENTER; /* pickup */ 254c04148f9SAlfred E. Heggestad case 0x28: return KEY_ESC; /* hangup */ 255c04148f9SAlfred E. Heggestad case 0x48: return KEY_LEFT; /* IN */ 256c04148f9SAlfred E. Heggestad case 0x88: return KEY_RIGHT; /* OUT */ 257c04148f9SAlfred E. Heggestad default: return special_keymap(scancode); 258c04148f9SAlfred E. Heggestad } 259c04148f9SAlfred E. Heggestad } 260c04148f9SAlfred E. Heggestad 261c04148f9SAlfred E. Heggestad static unsigned short (*keymap)(int) = keymap_kip1000; 262c04148f9SAlfred E. Heggestad 263c04148f9SAlfred E. Heggestad /* 264c04148f9SAlfred E. Heggestad * Completes a request by converting the data into events for the 265c04148f9SAlfred E. Heggestad * input subsystem. 266c04148f9SAlfred E. Heggestad */ 267c04148f9SAlfred E. Heggestad static void report_key(struct cm109_dev *dev, int key) 268c04148f9SAlfred E. Heggestad { 269c04148f9SAlfred E. Heggestad struct input_dev *idev = dev->idev; 270c04148f9SAlfred E. Heggestad 271c04148f9SAlfred E. Heggestad if (dev->key_code >= 0) { 272c04148f9SAlfred E. Heggestad /* old key up */ 273c04148f9SAlfred E. Heggestad input_report_key(idev, dev->key_code, 0); 274c04148f9SAlfred E. Heggestad } 275c04148f9SAlfred E. Heggestad 276c04148f9SAlfred E. Heggestad dev->key_code = key; 277c04148f9SAlfred E. Heggestad if (key >= 0) { 278c04148f9SAlfred E. Heggestad /* new valid key */ 279c04148f9SAlfred E. Heggestad input_report_key(idev, key, 1); 280c04148f9SAlfred E. Heggestad } 281c04148f9SAlfred E. Heggestad 282c04148f9SAlfred E. Heggestad input_sync(idev); 283c04148f9SAlfred E. Heggestad } 284c04148f9SAlfred E. Heggestad 285c04148f9SAlfred E. Heggestad /****************************************************************************** 286c04148f9SAlfred E. Heggestad * CM109 usb communication interface 287c04148f9SAlfred E. Heggestad *****************************************************************************/ 288c04148f9SAlfred E. Heggestad 289c04148f9SAlfred E. Heggestad static void cm109_submit_buzz_toggle(struct cm109_dev *dev) 290c04148f9SAlfred E. Heggestad { 291c04148f9SAlfred E. Heggestad int error; 292c04148f9SAlfred E. Heggestad 293c04148f9SAlfred E. Heggestad if (dev->buzzer_state) 294c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; 295c04148f9SAlfred E. Heggestad else 296c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; 297c04148f9SAlfred E. Heggestad 298c04148f9SAlfred E. Heggestad error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); 299c04148f9SAlfred E. Heggestad if (error) 300c04148f9SAlfred E. Heggestad err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error); 301c04148f9SAlfred E. Heggestad } 302c04148f9SAlfred E. Heggestad 303c04148f9SAlfred E. Heggestad /* 304c04148f9SAlfred E. Heggestad * IRQ handler 305c04148f9SAlfred E. Heggestad */ 306c04148f9SAlfred E. Heggestad static void cm109_urb_irq_callback(struct urb *urb) 307c04148f9SAlfred E. Heggestad { 308c04148f9SAlfred E. Heggestad struct cm109_dev *dev = urb->context; 309c04148f9SAlfred E. Heggestad const int status = urb->status; 310c04148f9SAlfred E. Heggestad int error; 311c04148f9SAlfred E. Heggestad 3122d517cabSDaniel Gimpelevich dev_dbg(&urb->dev->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n", 313c04148f9SAlfred E. Heggestad dev->irq_data->byte[0], 314c04148f9SAlfred E. Heggestad dev->irq_data->byte[1], 315c04148f9SAlfred E. Heggestad dev->irq_data->byte[2], 316c04148f9SAlfred E. Heggestad dev->irq_data->byte[3], 317c04148f9SAlfred E. Heggestad dev->keybit); 318c04148f9SAlfred E. Heggestad 319c04148f9SAlfred E. Heggestad if (status) { 320c04148f9SAlfred E. Heggestad if (status == -ESHUTDOWN) 321c04148f9SAlfred E. Heggestad return; 322c04148f9SAlfred E. Heggestad err("%s: urb status %d", __func__, status); 323c04148f9SAlfred E. Heggestad } 324c04148f9SAlfred E. Heggestad 325c04148f9SAlfred E. Heggestad /* Special keys */ 326c04148f9SAlfred E. Heggestad if (dev->irq_data->byte[HID_IR0] & 0x0f) { 327c04148f9SAlfred E. Heggestad const int code = (dev->irq_data->byte[HID_IR0] & 0x0f); 328c04148f9SAlfred E. Heggestad report_key(dev, dev->keymap[0xff + code]); 329c04148f9SAlfred E. Heggestad } 330c04148f9SAlfred E. Heggestad 331c04148f9SAlfred E. Heggestad /* Scan key column */ 332c04148f9SAlfred E. Heggestad if (dev->keybit == 0xf) { 333c04148f9SAlfred E. Heggestad 334c04148f9SAlfred E. Heggestad /* Any changes ? */ 335c04148f9SAlfred E. Heggestad if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0)) 336c04148f9SAlfred E. Heggestad goto out; 337c04148f9SAlfred E. Heggestad 338c04148f9SAlfred E. Heggestad dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0; 339c04148f9SAlfred E. Heggestad dev->keybit = 0x1; 340c04148f9SAlfred E. Heggestad } else { 341c04148f9SAlfred E. Heggestad report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]); 342c04148f9SAlfred E. Heggestad 343c04148f9SAlfred E. Heggestad dev->keybit <<= 1; 344c04148f9SAlfred E. Heggestad if (dev->keybit > 0x8) 345c04148f9SAlfred E. Heggestad dev->keybit = 0xf; 346c04148f9SAlfred E. Heggestad } 347c04148f9SAlfred E. Heggestad 348c04148f9SAlfred E. Heggestad out: 349c04148f9SAlfred E. Heggestad 350c04148f9SAlfred E. Heggestad spin_lock(&dev->ctl_submit_lock); 351c04148f9SAlfred E. Heggestad 352c04148f9SAlfred E. Heggestad dev->irq_urb_pending = 0; 353c04148f9SAlfred E. Heggestad 354c04148f9SAlfred E. Heggestad if (likely(!dev->shutdown)) { 355c04148f9SAlfred E. Heggestad 356c04148f9SAlfred E. Heggestad if (dev->buzzer_state) 357c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; 358c04148f9SAlfred E. Heggestad else 359c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; 360c04148f9SAlfred E. Heggestad 361c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR1] = dev->keybit; 362c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR2] = dev->keybit; 363c04148f9SAlfred E. Heggestad 364c04148f9SAlfred E. Heggestad dev->buzzer_pending = 0; 365c04148f9SAlfred E. Heggestad dev->ctl_urb_pending = 1; 366c04148f9SAlfred E. Heggestad 367c04148f9SAlfred E. Heggestad error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); 368c04148f9SAlfred E. Heggestad if (error) 369c04148f9SAlfred E. Heggestad err("%s: usb_submit_urb (urb_ctl) failed %d", 370c04148f9SAlfred E. Heggestad __func__, error); 371c04148f9SAlfred E. Heggestad } 372c04148f9SAlfred E. Heggestad 373c04148f9SAlfred E. Heggestad spin_unlock(&dev->ctl_submit_lock); 374c04148f9SAlfred E. Heggestad } 375c04148f9SAlfred E. Heggestad 376c04148f9SAlfred E. Heggestad static void cm109_urb_ctl_callback(struct urb *urb) 377c04148f9SAlfred E. Heggestad { 378c04148f9SAlfred E. Heggestad struct cm109_dev *dev = urb->context; 379c04148f9SAlfred E. Heggestad const int status = urb->status; 380c04148f9SAlfred E. Heggestad int error; 381c04148f9SAlfred E. Heggestad 3822d517cabSDaniel Gimpelevich dev_dbg(&urb->dev->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n", 383c04148f9SAlfred E. Heggestad dev->ctl_data->byte[0], 384c04148f9SAlfred E. Heggestad dev->ctl_data->byte[1], 385c04148f9SAlfred E. Heggestad dev->ctl_data->byte[2], 386c04148f9SAlfred E. Heggestad dev->ctl_data->byte[3]); 387c04148f9SAlfred E. Heggestad 388c04148f9SAlfred E. Heggestad if (status) 389c04148f9SAlfred E. Heggestad err("%s: urb status %d", __func__, status); 390c04148f9SAlfred E. Heggestad 391c04148f9SAlfred E. Heggestad spin_lock(&dev->ctl_submit_lock); 392c04148f9SAlfred E. Heggestad 393c04148f9SAlfred E. Heggestad dev->ctl_urb_pending = 0; 394c04148f9SAlfred E. Heggestad 395c04148f9SAlfred E. Heggestad if (likely(!dev->shutdown)) { 396c04148f9SAlfred E. Heggestad 397c04148f9SAlfred E. Heggestad if (dev->buzzer_pending) { 398c04148f9SAlfred E. Heggestad dev->buzzer_pending = 0; 399c04148f9SAlfred E. Heggestad dev->ctl_urb_pending = 1; 400c04148f9SAlfred E. Heggestad cm109_submit_buzz_toggle(dev); 401c04148f9SAlfred E. Heggestad } else if (likely(!dev->irq_urb_pending)) { 402c04148f9SAlfred E. Heggestad /* ask for key data */ 403c04148f9SAlfred E. Heggestad dev->irq_urb_pending = 1; 404c04148f9SAlfred E. Heggestad error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC); 405c04148f9SAlfred E. Heggestad if (error) 406c04148f9SAlfred E. Heggestad err("%s: usb_submit_urb (urb_irq) failed %d", 407c04148f9SAlfred E. Heggestad __func__, error); 408c04148f9SAlfred E. Heggestad } 409c04148f9SAlfred E. Heggestad } 410c04148f9SAlfred E. Heggestad 411c04148f9SAlfred E. Heggestad spin_unlock(&dev->ctl_submit_lock); 412c04148f9SAlfred E. Heggestad } 413c04148f9SAlfred E. Heggestad 414c04148f9SAlfred E. Heggestad static void cm109_toggle_buzzer_async(struct cm109_dev *dev) 415c04148f9SAlfred E. Heggestad { 416c04148f9SAlfred E. Heggestad unsigned long flags; 417c04148f9SAlfred E. Heggestad 418c04148f9SAlfred E. Heggestad spin_lock_irqsave(&dev->ctl_submit_lock, flags); 419c04148f9SAlfred E. Heggestad 420c04148f9SAlfred E. Heggestad if (dev->ctl_urb_pending) { 421c04148f9SAlfred E. Heggestad /* URB completion will resubmit */ 422c04148f9SAlfred E. Heggestad dev->buzzer_pending = 1; 423c04148f9SAlfred E. Heggestad } else { 424c04148f9SAlfred E. Heggestad dev->ctl_urb_pending = 1; 425c04148f9SAlfred E. Heggestad cm109_submit_buzz_toggle(dev); 426c04148f9SAlfred E. Heggestad } 427c04148f9SAlfred E. Heggestad 428c04148f9SAlfred E. Heggestad spin_unlock_irqrestore(&dev->ctl_submit_lock, flags); 429c04148f9SAlfred E. Heggestad } 430c04148f9SAlfred E. Heggestad 431c04148f9SAlfred E. Heggestad static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on) 432c04148f9SAlfred E. Heggestad { 433c04148f9SAlfred E. Heggestad int error; 434c04148f9SAlfred E. Heggestad 435c04148f9SAlfred E. Heggestad if (on) 436c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; 437c04148f9SAlfred E. Heggestad else 438c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; 439c04148f9SAlfred E. Heggestad 440c04148f9SAlfred E. Heggestad error = usb_control_msg(dev->udev, 441c04148f9SAlfred E. Heggestad usb_sndctrlpipe(dev->udev, 0), 442c04148f9SAlfred E. Heggestad dev->ctl_req->bRequest, 443c04148f9SAlfred E. Heggestad dev->ctl_req->bRequestType, 444c04148f9SAlfred E. Heggestad le16_to_cpu(dev->ctl_req->wValue), 445c04148f9SAlfred E. Heggestad le16_to_cpu(dev->ctl_req->wIndex), 446c04148f9SAlfred E. Heggestad dev->ctl_data, 447c04148f9SAlfred E. Heggestad USB_PKT_LEN, USB_CTRL_SET_TIMEOUT); 448c04148f9SAlfred E. Heggestad if (error && error != EINTR) 449c04148f9SAlfred E. Heggestad err("%s: usb_control_msg() failed %d", __func__, error); 450c04148f9SAlfred E. Heggestad } 451c04148f9SAlfred E. Heggestad 452c04148f9SAlfred E. Heggestad static void cm109_stop_traffic(struct cm109_dev *dev) 453c04148f9SAlfred E. Heggestad { 454c04148f9SAlfred E. Heggestad dev->shutdown = 1; 455c04148f9SAlfred E. Heggestad /* 456c04148f9SAlfred E. Heggestad * Make sure other CPUs see this 457c04148f9SAlfred E. Heggestad */ 458c04148f9SAlfred E. Heggestad smp_wmb(); 459c04148f9SAlfred E. Heggestad 460c04148f9SAlfred E. Heggestad usb_kill_urb(dev->urb_ctl); 461c04148f9SAlfred E. Heggestad usb_kill_urb(dev->urb_irq); 462c04148f9SAlfred E. Heggestad 463c04148f9SAlfred E. Heggestad cm109_toggle_buzzer_sync(dev, 0); 464c04148f9SAlfred E. Heggestad 465c04148f9SAlfred E. Heggestad dev->shutdown = 0; 466c04148f9SAlfred E. Heggestad smp_wmb(); 467c04148f9SAlfred E. Heggestad } 468c04148f9SAlfred E. Heggestad 469c04148f9SAlfred E. Heggestad static void cm109_restore_state(struct cm109_dev *dev) 470c04148f9SAlfred E. Heggestad { 471c04148f9SAlfred E. Heggestad if (dev->open) { 472c04148f9SAlfred E. Heggestad /* 473c04148f9SAlfred E. Heggestad * Restore buzzer state. 474c04148f9SAlfred E. Heggestad * This will also kick regular URB submission 475c04148f9SAlfred E. Heggestad */ 476c04148f9SAlfred E. Heggestad cm109_toggle_buzzer_async(dev); 477c04148f9SAlfred E. Heggestad } 478c04148f9SAlfred E. Heggestad } 479c04148f9SAlfred E. Heggestad 480c04148f9SAlfred E. Heggestad /****************************************************************************** 481c04148f9SAlfred E. Heggestad * input event interface 482c04148f9SAlfred E. Heggestad *****************************************************************************/ 483c04148f9SAlfred E. Heggestad 484c04148f9SAlfred E. Heggestad static int cm109_input_open(struct input_dev *idev) 485c04148f9SAlfred E. Heggestad { 486c04148f9SAlfred E. Heggestad struct cm109_dev *dev = input_get_drvdata(idev); 487c04148f9SAlfred E. Heggestad int error; 488c04148f9SAlfred E. Heggestad 489c04148f9SAlfred E. Heggestad error = usb_autopm_get_interface(dev->intf); 490c04148f9SAlfred E. Heggestad if (error < 0) { 491c04148f9SAlfred E. Heggestad err("%s - cannot autoresume, result %d", 492c04148f9SAlfred E. Heggestad __func__, error); 493c04148f9SAlfred E. Heggestad return error; 494c04148f9SAlfred E. Heggestad } 495c04148f9SAlfred E. Heggestad 496c04148f9SAlfred E. Heggestad mutex_lock(&dev->pm_mutex); 497c04148f9SAlfred E. Heggestad 498c04148f9SAlfred E. Heggestad dev->buzzer_state = 0; 499c04148f9SAlfred E. Heggestad dev->key_code = -1; /* no keys pressed */ 500c04148f9SAlfred E. Heggestad dev->keybit = 0xf; 501c04148f9SAlfred E. Heggestad 502c04148f9SAlfred E. Heggestad /* issue INIT */ 503c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF; 504c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR1] = dev->keybit; 505c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR2] = dev->keybit; 506c04148f9SAlfred E. Heggestad dev->ctl_data->byte[HID_OR3] = 0x00; 507c04148f9SAlfred E. Heggestad 508c04148f9SAlfred E. Heggestad error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL); 509c04148f9SAlfred E. Heggestad if (error) 510c04148f9SAlfred E. Heggestad err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error); 511c04148f9SAlfred E. Heggestad else 512c04148f9SAlfred E. Heggestad dev->open = 1; 513c04148f9SAlfred E. Heggestad 514c04148f9SAlfred E. Heggestad mutex_unlock(&dev->pm_mutex); 515c04148f9SAlfred E. Heggestad 516c04148f9SAlfred E. Heggestad if (error) 517c04148f9SAlfred E. Heggestad usb_autopm_put_interface(dev->intf); 518c04148f9SAlfred E. Heggestad 519c04148f9SAlfred E. Heggestad return error; 520c04148f9SAlfred E. Heggestad } 521c04148f9SAlfred E. Heggestad 522c04148f9SAlfred E. Heggestad static void cm109_input_close(struct input_dev *idev) 523c04148f9SAlfred E. Heggestad { 524c04148f9SAlfred E. Heggestad struct cm109_dev *dev = input_get_drvdata(idev); 525c04148f9SAlfred E. Heggestad 526c04148f9SAlfred E. Heggestad mutex_lock(&dev->pm_mutex); 527c04148f9SAlfred E. Heggestad 528c04148f9SAlfred E. Heggestad /* 529c04148f9SAlfred E. Heggestad * Once we are here event delivery is stopped so we 530c04148f9SAlfred E. Heggestad * don't need to worry about someone starting buzzer 531c04148f9SAlfred E. Heggestad * again 532c04148f9SAlfred E. Heggestad */ 533c04148f9SAlfred E. Heggestad cm109_stop_traffic(dev); 534c04148f9SAlfred E. Heggestad dev->open = 0; 535c04148f9SAlfred E. Heggestad 536c04148f9SAlfred E. Heggestad mutex_unlock(&dev->pm_mutex); 537c04148f9SAlfred E. Heggestad 538c04148f9SAlfred E. Heggestad usb_autopm_put_interface(dev->intf); 539c04148f9SAlfred E. Heggestad } 540c04148f9SAlfred E. Heggestad 541c04148f9SAlfred E. Heggestad static int cm109_input_ev(struct input_dev *idev, unsigned int type, 542c04148f9SAlfred E. Heggestad unsigned int code, int value) 543c04148f9SAlfred E. Heggestad { 544c04148f9SAlfred E. Heggestad struct cm109_dev *dev = input_get_drvdata(idev); 545c04148f9SAlfred E. Heggestad 54667d47641SStephen Rothwell dev_dbg(&dev->udev->dev, 5472d517cabSDaniel Gimpelevich "input_ev: type=%u code=%u value=%d\n", type, code, value); 548c04148f9SAlfred E. Heggestad 549c04148f9SAlfred E. Heggestad if (type != EV_SND) 550c04148f9SAlfred E. Heggestad return -EINVAL; 551c04148f9SAlfred E. Heggestad 552c04148f9SAlfred E. Heggestad switch (code) { 553c04148f9SAlfred E. Heggestad case SND_TONE: 554c04148f9SAlfred E. Heggestad case SND_BELL: 555c04148f9SAlfred E. Heggestad dev->buzzer_state = !!value; 556c04148f9SAlfred E. Heggestad if (!dev->resetting) 557c04148f9SAlfred E. Heggestad cm109_toggle_buzzer_async(dev); 558c04148f9SAlfred E. Heggestad return 0; 559c04148f9SAlfred E. Heggestad 560c04148f9SAlfred E. Heggestad default: 561c04148f9SAlfred E. Heggestad return -EINVAL; 562c04148f9SAlfred E. Heggestad } 563c04148f9SAlfred E. Heggestad } 564c04148f9SAlfred E. Heggestad 565c04148f9SAlfred E. Heggestad 566c04148f9SAlfred E. Heggestad /****************************************************************************** 567c04148f9SAlfred E. Heggestad * Linux interface and usb initialisation 568c04148f9SAlfred E. Heggestad *****************************************************************************/ 569c04148f9SAlfred E. Heggestad 570c04148f9SAlfred E. Heggestad struct driver_info { 571c04148f9SAlfred E. Heggestad char *name; 572c04148f9SAlfred E. Heggestad }; 573c04148f9SAlfred E. Heggestad 574c04148f9SAlfred E. Heggestad static const struct driver_info info_cm109 = { 575c04148f9SAlfred E. Heggestad .name = "CM109 USB driver", 576c04148f9SAlfred E. Heggestad }; 577c04148f9SAlfred E. Heggestad 578c04148f9SAlfred E. Heggestad enum { 579c04148f9SAlfred E. Heggestad VENDOR_ID = 0x0d8c, /* C-Media Electronics */ 580c04148f9SAlfred E. Heggestad PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */ 581c04148f9SAlfred E. Heggestad }; 582c04148f9SAlfred E. Heggestad 583c04148f9SAlfred E. Heggestad /* table of devices that work with this driver */ 584c04148f9SAlfred E. Heggestad static const struct usb_device_id cm109_usb_table[] = { 585c04148f9SAlfred E. Heggestad { 586c04148f9SAlfred E. Heggestad .match_flags = USB_DEVICE_ID_MATCH_DEVICE | 587c04148f9SAlfred E. Heggestad USB_DEVICE_ID_MATCH_INT_INFO, 588c04148f9SAlfred E. Heggestad .idVendor = VENDOR_ID, 589c04148f9SAlfred E. Heggestad .idProduct = PRODUCT_ID_CM109, 590c04148f9SAlfred E. Heggestad .bInterfaceClass = USB_CLASS_HID, 591c04148f9SAlfred E. Heggestad .bInterfaceSubClass = 0, 592c04148f9SAlfred E. Heggestad .bInterfaceProtocol = 0, 593c04148f9SAlfred E. Heggestad .driver_info = (kernel_ulong_t) &info_cm109 594c04148f9SAlfred E. Heggestad }, 595c04148f9SAlfred E. Heggestad /* you can add more devices here with product ID 0x0008 - 0x000f */ 596c04148f9SAlfred E. Heggestad { } 597c04148f9SAlfred E. Heggestad }; 598c04148f9SAlfred E. Heggestad 599c04148f9SAlfred E. Heggestad static void cm109_usb_cleanup(struct cm109_dev *dev) 600c04148f9SAlfred E. Heggestad { 601c04148f9SAlfred E. Heggestad if (dev->ctl_req) 602c04148f9SAlfred E. Heggestad usb_buffer_free(dev->udev, sizeof(*(dev->ctl_req)), 603c04148f9SAlfred E. Heggestad dev->ctl_req, dev->ctl_req_dma); 604c04148f9SAlfred E. Heggestad if (dev->ctl_data) 605c04148f9SAlfred E. Heggestad usb_buffer_free(dev->udev, USB_PKT_LEN, 606c04148f9SAlfred E. Heggestad dev->ctl_data, dev->ctl_dma); 607c04148f9SAlfred E. Heggestad if (dev->irq_data) 608c04148f9SAlfred E. Heggestad usb_buffer_free(dev->udev, USB_PKT_LEN, 609c04148f9SAlfred E. Heggestad dev->irq_data, dev->irq_dma); 610c04148f9SAlfred E. Heggestad 611c04148f9SAlfred E. Heggestad usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */ 612c04148f9SAlfred E. Heggestad usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */ 613c04148f9SAlfred E. Heggestad kfree(dev); 614c04148f9SAlfred E. Heggestad } 615c04148f9SAlfred E. Heggestad 616c04148f9SAlfred E. Heggestad static void cm109_usb_disconnect(struct usb_interface *interface) 617c04148f9SAlfred E. Heggestad { 618c04148f9SAlfred E. Heggestad struct cm109_dev *dev = usb_get_intfdata(interface); 619c04148f9SAlfred E. Heggestad 620c04148f9SAlfred E. Heggestad usb_set_intfdata(interface, NULL); 621c04148f9SAlfred E. Heggestad input_unregister_device(dev->idev); 622c04148f9SAlfred E. Heggestad cm109_usb_cleanup(dev); 623c04148f9SAlfred E. Heggestad } 624c04148f9SAlfred E. Heggestad 625c04148f9SAlfred E. Heggestad static int cm109_usb_probe(struct usb_interface *intf, 626c04148f9SAlfred E. Heggestad const struct usb_device_id *id) 627c04148f9SAlfred E. Heggestad { 628c04148f9SAlfred E. Heggestad struct usb_device *udev = interface_to_usbdev(intf); 629c04148f9SAlfred E. Heggestad struct driver_info *nfo = (struct driver_info *)id->driver_info; 630c04148f9SAlfred E. Heggestad struct usb_host_interface *interface; 631c04148f9SAlfred E. Heggestad struct usb_endpoint_descriptor *endpoint; 632c04148f9SAlfred E. Heggestad struct cm109_dev *dev; 633c04148f9SAlfred E. Heggestad struct input_dev *input_dev = NULL; 634c04148f9SAlfred E. Heggestad int ret, pipe, i; 635c04148f9SAlfred E. Heggestad int error = -ENOMEM; 636c04148f9SAlfred E. Heggestad 637c04148f9SAlfred E. Heggestad interface = intf->cur_altsetting; 638c04148f9SAlfred E. Heggestad endpoint = &interface->endpoint[0].desc; 639c04148f9SAlfred E. Heggestad 640c04148f9SAlfred E. Heggestad if (!usb_endpoint_is_int_in(endpoint)) 641c04148f9SAlfred E. Heggestad return -ENODEV; 642c04148f9SAlfred E. Heggestad 643c04148f9SAlfred E. Heggestad dev = kzalloc(sizeof(*dev), GFP_KERNEL); 644c04148f9SAlfred E. Heggestad if (!dev) 645c04148f9SAlfred E. Heggestad return -ENOMEM; 646c04148f9SAlfred E. Heggestad 647c04148f9SAlfred E. Heggestad spin_lock_init(&dev->ctl_submit_lock); 648c04148f9SAlfred E. Heggestad mutex_init(&dev->pm_mutex); 649c04148f9SAlfred E. Heggestad 650c04148f9SAlfred E. Heggestad dev->udev = udev; 651c04148f9SAlfred E. Heggestad dev->intf = intf; 652c04148f9SAlfred E. Heggestad 653c04148f9SAlfred E. Heggestad dev->idev = input_dev = input_allocate_device(); 654c04148f9SAlfred E. Heggestad if (!input_dev) 655c04148f9SAlfred E. Heggestad goto err_out; 656c04148f9SAlfred E. Heggestad 657c04148f9SAlfred E. Heggestad /* allocate usb buffers */ 658c04148f9SAlfred E. Heggestad dev->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN, 659c04148f9SAlfred E. Heggestad GFP_KERNEL, &dev->irq_dma); 660c04148f9SAlfred E. Heggestad if (!dev->irq_data) 661c04148f9SAlfred E. Heggestad goto err_out; 662c04148f9SAlfred E. Heggestad 663c04148f9SAlfred E. Heggestad dev->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN, 664c04148f9SAlfred E. Heggestad GFP_KERNEL, &dev->ctl_dma); 665c04148f9SAlfred E. Heggestad if (!dev->ctl_data) 666c04148f9SAlfred E. Heggestad goto err_out; 667c04148f9SAlfred E. Heggestad 668c04148f9SAlfred E. Heggestad dev->ctl_req = usb_buffer_alloc(udev, sizeof(*(dev->ctl_req)), 669c04148f9SAlfred E. Heggestad GFP_KERNEL, &dev->ctl_req_dma); 670c04148f9SAlfred E. Heggestad if (!dev->ctl_req) 671c04148f9SAlfred E. Heggestad goto err_out; 672c04148f9SAlfred E. Heggestad 673c04148f9SAlfred E. Heggestad /* allocate urb structures */ 674c04148f9SAlfred E. Heggestad dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL); 675c04148f9SAlfred E. Heggestad if (!dev->urb_irq) 676c04148f9SAlfred E. Heggestad goto err_out; 677c04148f9SAlfred E. Heggestad 678c04148f9SAlfred E. Heggestad dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL); 679c04148f9SAlfred E. Heggestad if (!dev->urb_ctl) 680c04148f9SAlfred E. Heggestad goto err_out; 681c04148f9SAlfred E. Heggestad 682c04148f9SAlfred E. Heggestad /* get a handle to the interrupt data pipe */ 683c04148f9SAlfred E. Heggestad pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress); 684c04148f9SAlfred E. Heggestad ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); 685c04148f9SAlfred E. Heggestad if (ret != USB_PKT_LEN) 686c04148f9SAlfred E. Heggestad err("invalid payload size %d, expected %d", ret, USB_PKT_LEN); 687c04148f9SAlfred E. Heggestad 688c04148f9SAlfred E. Heggestad /* initialise irq urb */ 689c04148f9SAlfred E. Heggestad usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data, 690c04148f9SAlfred E. Heggestad USB_PKT_LEN, 691c04148f9SAlfred E. Heggestad cm109_urb_irq_callback, dev, endpoint->bInterval); 692c04148f9SAlfred E. Heggestad dev->urb_irq->transfer_dma = dev->irq_dma; 693c04148f9SAlfred E. Heggestad dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 694c04148f9SAlfred E. Heggestad dev->urb_irq->dev = udev; 695c04148f9SAlfred E. Heggestad 696c04148f9SAlfred E. Heggestad /* initialise ctl urb */ 697c04148f9SAlfred E. Heggestad dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | 698c04148f9SAlfred E. Heggestad USB_DIR_OUT; 699c04148f9SAlfred E. Heggestad dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION; 700c04148f9SAlfred E. Heggestad dev->ctl_req->wValue = cpu_to_le16(0x200); 701c04148f9SAlfred E. Heggestad dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber); 702c04148f9SAlfred E. Heggestad dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN); 703c04148f9SAlfred E. Heggestad 704c04148f9SAlfred E. Heggestad usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0), 705c04148f9SAlfred E. Heggestad (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN, 706c04148f9SAlfred E. Heggestad cm109_urb_ctl_callback, dev); 707c04148f9SAlfred E. Heggestad dev->urb_ctl->setup_dma = dev->ctl_req_dma; 708c04148f9SAlfred E. Heggestad dev->urb_ctl->transfer_dma = dev->ctl_dma; 709c04148f9SAlfred E. Heggestad dev->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP | 710c04148f9SAlfred E. Heggestad URB_NO_TRANSFER_DMA_MAP; 711c04148f9SAlfred E. Heggestad dev->urb_ctl->dev = udev; 712c04148f9SAlfred E. Heggestad 713c04148f9SAlfred E. Heggestad /* find out the physical bus location */ 714c04148f9SAlfred E. Heggestad usb_make_path(udev, dev->phys, sizeof(dev->phys)); 715c04148f9SAlfred E. Heggestad strlcat(dev->phys, "/input0", sizeof(dev->phys)); 716c04148f9SAlfred E. Heggestad 717c04148f9SAlfred E. Heggestad /* register settings for the input device */ 718c04148f9SAlfred E. Heggestad input_dev->name = nfo->name; 719c04148f9SAlfred E. Heggestad input_dev->phys = dev->phys; 720c04148f9SAlfred E. Heggestad usb_to_input_id(udev, &input_dev->id); 721c04148f9SAlfred E. Heggestad input_dev->dev.parent = &intf->dev; 722c04148f9SAlfred E. Heggestad 723c04148f9SAlfred E. Heggestad input_set_drvdata(input_dev, dev); 724c04148f9SAlfred E. Heggestad input_dev->open = cm109_input_open; 725c04148f9SAlfred E. Heggestad input_dev->close = cm109_input_close; 726c04148f9SAlfred E. Heggestad input_dev->event = cm109_input_ev; 727c04148f9SAlfred E. Heggestad 728c04148f9SAlfred E. Heggestad input_dev->keycode = dev->keymap; 729c04148f9SAlfred E. Heggestad input_dev->keycodesize = sizeof(unsigned char); 730c04148f9SAlfred E. Heggestad input_dev->keycodemax = ARRAY_SIZE(dev->keymap); 731c04148f9SAlfred E. Heggestad 732c04148f9SAlfred E. Heggestad input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND); 733c04148f9SAlfred E. Heggestad input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 734c04148f9SAlfred E. Heggestad 735c04148f9SAlfred E. Heggestad /* register available key events */ 736c04148f9SAlfred E. Heggestad for (i = 0; i < KEYMAP_SIZE; i++) { 737c04148f9SAlfred E. Heggestad unsigned short k = keymap(i); 738c04148f9SAlfred E. Heggestad dev->keymap[i] = k; 739c04148f9SAlfred E. Heggestad __set_bit(k, input_dev->keybit); 740c04148f9SAlfred E. Heggestad } 741c04148f9SAlfred E. Heggestad __clear_bit(KEY_RESERVED, input_dev->keybit); 742c04148f9SAlfred E. Heggestad 743c04148f9SAlfred E. Heggestad error = input_register_device(dev->idev); 744c04148f9SAlfred E. Heggestad if (error) 745c04148f9SAlfred E. Heggestad goto err_out; 746c04148f9SAlfred E. Heggestad 747c04148f9SAlfred E. Heggestad usb_set_intfdata(intf, dev); 748c04148f9SAlfred E. Heggestad 749c04148f9SAlfred E. Heggestad return 0; 750c04148f9SAlfred E. Heggestad 751c04148f9SAlfred E. Heggestad err_out: 752c04148f9SAlfred E. Heggestad input_free_device(input_dev); 753c04148f9SAlfred E. Heggestad cm109_usb_cleanup(dev); 754c04148f9SAlfred E. Heggestad return error; 755c04148f9SAlfred E. Heggestad } 756c04148f9SAlfred E. Heggestad 757c04148f9SAlfred E. Heggestad static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message) 758c04148f9SAlfred E. Heggestad { 759c04148f9SAlfred E. Heggestad struct cm109_dev *dev = usb_get_intfdata(intf); 760c04148f9SAlfred E. Heggestad 7612d517cabSDaniel Gimpelevich dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event); 762c04148f9SAlfred E. Heggestad 763c04148f9SAlfred E. Heggestad mutex_lock(&dev->pm_mutex); 764c04148f9SAlfred E. Heggestad cm109_stop_traffic(dev); 765c04148f9SAlfred E. Heggestad mutex_unlock(&dev->pm_mutex); 766c04148f9SAlfred E. Heggestad 767c04148f9SAlfred E. Heggestad return 0; 768c04148f9SAlfred E. Heggestad } 769c04148f9SAlfred E. Heggestad 770c04148f9SAlfred E. Heggestad static int cm109_usb_resume(struct usb_interface *intf) 771c04148f9SAlfred E. Heggestad { 772c04148f9SAlfred E. Heggestad struct cm109_dev *dev = usb_get_intfdata(intf); 773c04148f9SAlfred E. Heggestad 7742d517cabSDaniel Gimpelevich dev_info(&intf->dev, "cm109: usb_resume\n"); 775c04148f9SAlfred E. Heggestad 776c04148f9SAlfred E. Heggestad mutex_lock(&dev->pm_mutex); 777c04148f9SAlfred E. Heggestad cm109_restore_state(dev); 778c04148f9SAlfred E. Heggestad mutex_unlock(&dev->pm_mutex); 779c04148f9SAlfred E. Heggestad 780c04148f9SAlfred E. Heggestad return 0; 781c04148f9SAlfred E. Heggestad } 782c04148f9SAlfred E. Heggestad 783c04148f9SAlfred E. Heggestad static int cm109_usb_pre_reset(struct usb_interface *intf) 784c04148f9SAlfred E. Heggestad { 785c04148f9SAlfred E. Heggestad struct cm109_dev *dev = usb_get_intfdata(intf); 786c04148f9SAlfred E. Heggestad 787c04148f9SAlfred E. Heggestad mutex_lock(&dev->pm_mutex); 788c04148f9SAlfred E. Heggestad 789c04148f9SAlfred E. Heggestad /* 790c04148f9SAlfred E. Heggestad * Make sure input events don't try to toggle buzzer 791c04148f9SAlfred E. Heggestad * while we are resetting 792c04148f9SAlfred E. Heggestad */ 793c04148f9SAlfred E. Heggestad dev->resetting = 1; 794c04148f9SAlfred E. Heggestad smp_wmb(); 795c04148f9SAlfred E. Heggestad 796c04148f9SAlfred E. Heggestad cm109_stop_traffic(dev); 797c04148f9SAlfred E. Heggestad 798c04148f9SAlfred E. Heggestad return 0; 799c04148f9SAlfred E. Heggestad } 800c04148f9SAlfred E. Heggestad 801c04148f9SAlfred E. Heggestad static int cm109_usb_post_reset(struct usb_interface *intf) 802c04148f9SAlfred E. Heggestad { 803c04148f9SAlfred E. Heggestad struct cm109_dev *dev = usb_get_intfdata(intf); 804c04148f9SAlfred E. Heggestad 805c04148f9SAlfred E. Heggestad dev->resetting = 0; 806c04148f9SAlfred E. Heggestad smp_wmb(); 807c04148f9SAlfred E. Heggestad 808c04148f9SAlfred E. Heggestad cm109_restore_state(dev); 809c04148f9SAlfred E. Heggestad 810c04148f9SAlfred E. Heggestad mutex_unlock(&dev->pm_mutex); 811c04148f9SAlfred E. Heggestad 812c04148f9SAlfred E. Heggestad return 0; 813c04148f9SAlfred E. Heggestad } 814c04148f9SAlfred E. Heggestad 815c04148f9SAlfred E. Heggestad static struct usb_driver cm109_driver = { 816c04148f9SAlfred E. Heggestad .name = "cm109", 817c04148f9SAlfred E. Heggestad .probe = cm109_usb_probe, 818c04148f9SAlfred E. Heggestad .disconnect = cm109_usb_disconnect, 819c04148f9SAlfred E. Heggestad .suspend = cm109_usb_suspend, 820c04148f9SAlfred E. Heggestad .resume = cm109_usb_resume, 821c04148f9SAlfred E. Heggestad .reset_resume = cm109_usb_resume, 822c04148f9SAlfred E. Heggestad .pre_reset = cm109_usb_pre_reset, 823c04148f9SAlfred E. Heggestad .post_reset = cm109_usb_post_reset, 824c04148f9SAlfred E. Heggestad .id_table = cm109_usb_table, 825c04148f9SAlfred E. Heggestad .supports_autosuspend = 1, 826c04148f9SAlfred E. Heggestad }; 827c04148f9SAlfred E. Heggestad 828c04148f9SAlfred E. Heggestad static int __init cm109_select_keymap(void) 829c04148f9SAlfred E. Heggestad { 830c04148f9SAlfred E. Heggestad /* Load the phone keymap */ 831c04148f9SAlfred E. Heggestad if (!strcasecmp(phone, "kip1000")) { 832c04148f9SAlfred E. Heggestad keymap = keymap_kip1000; 83367d47641SStephen Rothwell printk(KERN_INFO KBUILD_MODNAME ": " 8342d517cabSDaniel Gimpelevich "Keymap for Komunikate KIP1000 phone loaded\n"); 835c04148f9SAlfred E. Heggestad } else if (!strcasecmp(phone, "gtalk")) { 836c04148f9SAlfred E. Heggestad keymap = keymap_gtalk; 83767d47641SStephen Rothwell printk(KERN_INFO KBUILD_MODNAME ": " 8382d517cabSDaniel Gimpelevich "Keymap for Genius G-talk phone loaded\n"); 839c04148f9SAlfred E. Heggestad } else if (!strcasecmp(phone, "usbph01")) { 840c04148f9SAlfred E. Heggestad keymap = keymap_usbph01; 84167d47641SStephen Rothwell printk(KERN_INFO KBUILD_MODNAME ": " 8422d517cabSDaniel Gimpelevich "Keymap for Allied-Telesis Corega USBPH01 phone loaded\n"); 843c04148f9SAlfred E. Heggestad } else { 84467d47641SStephen Rothwell printk(KERN_ERR KBUILD_MODNAME ": " 8452d517cabSDaniel Gimpelevich "Unsupported phone: %s\n", phone); 846c04148f9SAlfred E. Heggestad return -EINVAL; 847c04148f9SAlfred E. Heggestad } 848c04148f9SAlfred E. Heggestad 849c04148f9SAlfred E. Heggestad return 0; 850c04148f9SAlfred E. Heggestad } 851c04148f9SAlfred E. Heggestad 852c04148f9SAlfred E. Heggestad static int __init cm109_init(void) 853c04148f9SAlfred E. Heggestad { 854c04148f9SAlfred E. Heggestad int err; 855c04148f9SAlfred E. Heggestad 856c04148f9SAlfred E. Heggestad err = cm109_select_keymap(); 857c04148f9SAlfred E. Heggestad if (err) 858c04148f9SAlfred E. Heggestad return err; 859c04148f9SAlfred E. Heggestad 860c04148f9SAlfred E. Heggestad err = usb_register(&cm109_driver); 861c04148f9SAlfred E. Heggestad if (err) 862c04148f9SAlfred E. Heggestad return err; 863c04148f9SAlfred E. Heggestad 86467d47641SStephen Rothwell printk(KERN_INFO KBUILD_MODNAME ": " 8652d517cabSDaniel Gimpelevich DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n"); 866c04148f9SAlfred E. Heggestad 867c04148f9SAlfred E. Heggestad return 0; 868c04148f9SAlfred E. Heggestad } 869c04148f9SAlfred E. Heggestad 870c04148f9SAlfred E. Heggestad static void __exit cm109_exit(void) 871c04148f9SAlfred E. Heggestad { 872c04148f9SAlfred E. Heggestad usb_deregister(&cm109_driver); 873c04148f9SAlfred E. Heggestad } 874c04148f9SAlfred E. Heggestad 875c04148f9SAlfred E. Heggestad module_init(cm109_init); 876c04148f9SAlfred E. Heggestad module_exit(cm109_exit); 877c04148f9SAlfred E. Heggestad 878c04148f9SAlfred E. Heggestad MODULE_DEVICE_TABLE(usb, cm109_usb_table); 879c04148f9SAlfred E. Heggestad 880c04148f9SAlfred E. Heggestad MODULE_AUTHOR(DRIVER_AUTHOR); 881c04148f9SAlfred E. Heggestad MODULE_DESCRIPTION(DRIVER_DESC); 882c04148f9SAlfred E. Heggestad MODULE_LICENSE("GPL"); 883