| /* |
| * Driver for the VoIP USB phones with CM109 chipsets. |
| * |
| * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation, version 2. |
| */ |
| |
| /* |
| * Tested devices: |
| * - Komunikate KIP1000 |
| * - Genius G-talk |
| * - Allied-Telesis Corega USBPH01 |
| * - ... |
| * |
| * This driver is based on the yealink.c driver |
| * |
| * Thanks to: |
| * - Authors of yealink.c |
| * - Thomas Reitmayr |
| * - Oliver Neukum for good review comments and code |
| * - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap |
| * - Dmitry Torokhov for valuable input and review |
| * |
| * Todo: |
| * - Read/write EEPROM |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/rwsem.h> |
| #include <linux/usb/input.h> |
| |
| #define DRIVER_VERSION "20080805" |
| #define DRIVER_AUTHOR "Alfred E. Heggestad" |
| #define DRIVER_DESC "CM109 phone driver" |
| |
| static char *phone = "kip1000"; |
| module_param(phone, charp, S_IRUSR); |
| MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01, atcom}"); |
| |
| enum { |
| /* HID Registers */ |
| HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */ |
| HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */ |
| HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */ |
| HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */ |
| HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */ |
| HID_OR1 = 0x01, /* GPO - General Purpose Output */ |
| HID_OR2 = 0x02, /* Set GPIO to input/output mode */ |
| HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */ |
| |
| /* HID_IR0 */ |
| RECORD_MUTE = 1 << 3, |
| PLAYBACK_MUTE = 1 << 2, |
| VOLUME_DOWN = 1 << 1, |
| VOLUME_UP = 1 << 0, |
| |
| /* HID_OR0 */ |
| /* bits 7-6 |
| 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer |
| and SPDIF |
| 1: HID_OR0-3 are used as generic HID registers |
| 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL, |
| EEPROM_DATA0-1, EEPROM_CTRL (see Note) |
| 3: Reserved |
| */ |
| HID_OR_GPO_BUZ_SPDIF = 0 << 6, |
| HID_OR_GENERIC_HID_REG = 1 << 6, |
| HID_OR_MAP_MCU_EEPROM = 2 << 6, |
| |
| BUZZER_ON = 1 << 5, |
| |
| /* up to 256 normal keys, up to 15 special key combinations */ |
| KEYMAP_SIZE = 256 + 15, |
| }; |
| |
| /* CM109 protocol packet */ |
| struct cm109_ctl_packet { |
| u8 byte[4]; |
| } __attribute__ ((packed)); |
| |
| enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) }; |
| |
| /* CM109 device structure */ |
| struct cm109_dev { |
| struct input_dev *idev; /* input device */ |
| struct usb_device *udev; /* usb device */ |
| struct usb_interface *intf; |
| |
| /* irq input channel */ |
| struct cm109_ctl_packet *irq_data; |
| dma_addr_t irq_dma; |
| struct urb *urb_irq; |
| |
| /* control output channel */ |
| struct cm109_ctl_packet *ctl_data; |
| dma_addr_t ctl_dma; |
| struct usb_ctrlrequest *ctl_req; |
| struct urb *urb_ctl; |
| /* |
| * The 3 bitfields below are protected by ctl_submit_lock. |
| * They have to be separate since they are accessed from IRQ |
| * context. |
| */ |
| unsigned irq_urb_pending:1; /* irq_urb is in flight */ |
| unsigned ctl_urb_pending:1; /* ctl_urb is in flight */ |
| unsigned buzzer_pending:1; /* need to issue buzz command */ |
| spinlock_t ctl_submit_lock; |
| |
| unsigned char buzzer_state; /* on/off */ |
| |
| /* flags */ |
| unsigned open:1; |
| unsigned resetting:1; |
| unsigned shutdown:1; |
| |
| /* This mutex protects writes to the above flags */ |
| struct mutex pm_mutex; |
| |
| unsigned short keymap[KEYMAP_SIZE]; |
| |
| char phys[64]; /* physical device path */ |
| int key_code; /* last reported key */ |
| int keybit; /* 0=new scan 1,2,4,8=scan columns */ |
| u8 gpi; /* Cached value of GPI (high nibble) */ |
| }; |
| |
| /****************************************************************************** |
| * CM109 key interface |
| *****************************************************************************/ |
| |
| static unsigned short special_keymap(int code) |
| { |
| if (code > 0xff) { |
| switch (code - 0xff) { |
| case RECORD_MUTE: return KEY_MICMUTE; |
| case PLAYBACK_MUTE: return KEY_MUTE; |
| case VOLUME_DOWN: return KEY_VOLUMEDOWN; |
| case VOLUME_UP: return KEY_VOLUMEUP; |
| } |
| } |
| return KEY_RESERVED; |
| } |
| |
| /* Map device buttons to internal key events. |
| * |
| * The "up" and "down" keys, are symbolised by arrows on the button. |
| * The "pickup" and "hangup" keys are symbolised by a green and red phone |
| * on the button. |
| |
| Komunikate KIP1000 Keyboard Matrix |
| |
| -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10) |
| | | | | |
| <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20) |
| | | | | |
| END - 7 -- 8 -- 9 --> GPI pin 6 (0x40) |
| | | | | |
| OK -- * -- 0 -- # --> GPI pin 7 (0x80) |
| | | | | |
| |
| /|\ /|\ /|\ /|\ |
| | | | | |
| GPO |
| pin: 3 2 1 0 |
| 0x8 0x4 0x2 0x1 |
| |
| */ |
| static unsigned short keymap_kip1000(int scancode) |
| { |
| switch (scancode) { /* phone key: */ |
| case 0x82: return KEY_NUMERIC_0; /* 0 */ |
| case 0x14: return KEY_NUMERIC_1; /* 1 */ |
| case 0x12: return KEY_NUMERIC_2; /* 2 */ |
| case 0x11: return KEY_NUMERIC_3; /* 3 */ |
| case 0x24: return KEY_NUMERIC_4; /* 4 */ |
| case 0x22: return KEY_NUMERIC_5; /* 5 */ |
| case 0x21: return KEY_NUMERIC_6; /* 6 */ |
| case 0x44: return KEY_NUMERIC_7; /* 7 */ |
| case 0x42: return KEY_NUMERIC_8; /* 8 */ |
| case 0x41: return KEY_NUMERIC_9; /* 9 */ |
| case 0x81: return KEY_NUMERIC_POUND; /* # */ |
| case 0x84: return KEY_NUMERIC_STAR; /* * */ |
| case 0x88: return KEY_ENTER; /* pickup */ |
| case 0x48: return KEY_ESC; /* hangup */ |
| case 0x28: return KEY_LEFT; /* IN */ |
| case 0x18: return KEY_RIGHT; /* OUT */ |
| default: return special_keymap(scancode); |
| } |
| } |
| |
| /* |
| Contributed by Shaun Jackman <sjackman@gmail.com> |
| |
| Genius G-Talk keyboard matrix |
| 0 1 2 3 |
| 4: 0 4 8 Talk |
| 5: 1 5 9 End |
| 6: 2 6 # Up |
| 7: 3 7 * Down |
| */ |
| static unsigned short keymap_gtalk(int scancode) |
| { |
| switch (scancode) { |
| case 0x11: return KEY_NUMERIC_0; |
| case 0x21: return KEY_NUMERIC_1; |
| case 0x41: return KEY_NUMERIC_2; |
| case 0x81: return KEY_NUMERIC_3; |
| case 0x12: return KEY_NUMERIC_4; |
| case 0x22: return KEY_NUMERIC_5; |
| case 0x42: return KEY_NUMERIC_6; |
| case 0x82: return KEY_NUMERIC_7; |
| case 0x14: return KEY_NUMERIC_8; |
| case 0x24: return KEY_NUMERIC_9; |
| case 0x44: return KEY_NUMERIC_POUND; /* # */ |
| case 0x84: return KEY_NUMERIC_STAR; /* * */ |
| case 0x18: return KEY_ENTER; /* Talk (green handset) */ |
| case 0x28: return KEY_ESC; /* End (red handset) */ |
| case 0x48: return KEY_UP; /* Menu up (rocker switch) */ |
| case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */ |
| default: return special_keymap(scancode); |
| } |
| } |
| |
| /* |
| * Keymap for Allied-Telesis Corega USBPH01 |
| * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html |
| * |
| * Contributed by july@nat.bg |
| */ |
| static unsigned short keymap_usbph01(int scancode) |
| { |
| switch (scancode) { |
| case 0x11: return KEY_NUMERIC_0; /* 0 */ |
| case 0x21: return KEY_NUMERIC_1; /* 1 */ |
| case 0x41: return KEY_NUMERIC_2; /* 2 */ |
| case 0x81: return KEY_NUMERIC_3; /* 3 */ |
| case 0x12: return KEY_NUMERIC_4; /* 4 */ |
| case 0x22: return KEY_NUMERIC_5; /* 5 */ |
| case 0x42: return KEY_NUMERIC_6; /* 6 */ |
| case 0x82: return KEY_NUMERIC_7; /* 7 */ |
| case 0x14: return KEY_NUMERIC_8; /* 8 */ |
| case 0x24: return KEY_NUMERIC_9; /* 9 */ |
| case 0x44: return KEY_NUMERIC_POUND; /* # */ |
| case 0x84: return KEY_NUMERIC_STAR; /* * */ |
| case 0x18: return KEY_ENTER; /* pickup */ |
| case 0x28: return KEY_ESC; /* hangup */ |
| case 0x48: return KEY_LEFT; /* IN */ |
| case 0x88: return KEY_RIGHT; /* OUT */ |
| default: return special_keymap(scancode); |
| } |
| } |
| |
| /* |
| * Keymap for ATCom AU-100 |
| * http://www.atcom.cn/products.html |
| * http://www.packetizer.com/products/au100/ |
| * http://www.voip-info.org/wiki/view/AU-100 |
| * |
| * Contributed by daniel@gimpelevich.san-francisco.ca.us |
| */ |
| static unsigned short keymap_atcom(int scancode) |
| { |
| switch (scancode) { /* phone key: */ |
| case 0x82: return KEY_NUMERIC_0; /* 0 */ |
| case 0x11: return KEY_NUMERIC_1; /* 1 */ |
| case 0x12: return KEY_NUMERIC_2; /* 2 */ |
| case 0x14: return KEY_NUMERIC_3; /* 3 */ |
| case 0x21: return KEY_NUMERIC_4; /* 4 */ |
| case 0x22: return KEY_NUMERIC_5; /* 5 */ |
| case 0x24: return KEY_NUMERIC_6; /* 6 */ |
| case 0x41: return KEY_NUMERIC_7; /* 7 */ |
| case 0x42: return KEY_NUMERIC_8; /* 8 */ |
| case 0x44: return KEY_NUMERIC_9; /* 9 */ |
| case 0x84: return KEY_NUMERIC_POUND; /* # */ |
| case 0x81: return KEY_NUMERIC_STAR; /* * */ |
| case 0x18: return KEY_ENTER; /* pickup */ |
| case 0x28: return KEY_ESC; /* hangup */ |
| case 0x48: return KEY_LEFT; /* left arrow */ |
| case 0x88: return KEY_RIGHT; /* right arrow */ |
| default: return special_keymap(scancode); |
| } |
| } |
| |
| static unsigned short (*keymap)(int) = keymap_kip1000; |
| |
| /* |
| * Completes a request by converting the data into events for the |
| * input subsystem. |
| */ |
| static void report_key(struct cm109_dev *dev, int key) |
| { |
| struct input_dev *idev = dev->idev; |
| |
| if (dev->key_code >= 0) { |
| /* old key up */ |
| input_report_key(idev, dev->key_code, 0); |
| } |
| |
| dev->key_code = key; |
| if (key >= 0) { |
| /* new valid key */ |
| input_report_key(idev, key, 1); |
| } |
| |
| input_sync(idev); |
| } |
| |
| /* |
| * Converts data of special key presses (volume, mute) into events |
| * for the input subsystem, sends press-n-release for mute keys. |
| */ |
| static void cm109_report_special(struct cm109_dev *dev) |
| { |
| static const u8 autorelease = RECORD_MUTE | PLAYBACK_MUTE; |
| struct input_dev *idev = dev->idev; |
| u8 data = dev->irq_data->byte[HID_IR0]; |
| unsigned short keycode; |
| int i; |
| |
| for (i = 0; i < 4; i++) { |
| keycode = dev->keymap[0xff + BIT(i)]; |
| if (keycode == KEY_RESERVED) |
| continue; |
| |
| input_report_key(idev, keycode, data & BIT(i)); |
| if (data & autorelease & BIT(i)) { |
| input_sync(idev); |
| input_report_key(idev, keycode, 0); |
| } |
| } |
| input_sync(idev); |
| } |
| |
| /****************************************************************************** |
| * CM109 usb communication interface |
| *****************************************************************************/ |
| |
| static void cm109_submit_buzz_toggle(struct cm109_dev *dev) |
| { |
| int error; |
| |
| if (dev->buzzer_state) |
| dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; |
| else |
| dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; |
| |
| error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); |
| if (error) |
| dev_err(&dev->intf->dev, |
| "%s: usb_submit_urb (urb_ctl) failed %d\n", |
| __func__, error); |
| } |
| |
| /* |
| * IRQ handler |
| */ |
| static void cm109_urb_irq_callback(struct urb *urb) |
| { |
| struct cm109_dev *dev = urb->context; |
| const int status = urb->status; |
| int error; |
| unsigned long flags; |
| |
| dev_dbg(&dev->intf->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n", |
| dev->irq_data->byte[0], |
| dev->irq_data->byte[1], |
| dev->irq_data->byte[2], |
| dev->irq_data->byte[3], |
| dev->keybit); |
| |
| if (status) { |
| if (status == -ESHUTDOWN) |
| return; |
| dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", |
| __func__, status); |
| goto out; |
| } |
| |
| /* Special keys */ |
| cm109_report_special(dev); |
| |
| /* Scan key column */ |
| if (dev->keybit == 0xf) { |
| |
| /* Any changes ? */ |
| if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0)) |
| goto out; |
| |
| dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0; |
| dev->keybit = 0x1; |
| } else { |
| report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]); |
| |
| dev->keybit <<= 1; |
| if (dev->keybit > 0x8) |
| dev->keybit = 0xf; |
| } |
| |
| out: |
| |
| spin_lock_irqsave(&dev->ctl_submit_lock, flags); |
| |
| dev->irq_urb_pending = 0; |
| |
| if (likely(!dev->shutdown)) { |
| |
| if (dev->buzzer_state) |
| dev->ctl_data->byte[HID_OR0] |= BUZZER_ON; |
| else |
| dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; |
| |
| dev->ctl_data->byte[HID_OR1] = dev->keybit; |
| dev->ctl_data->byte[HID_OR2] = dev->keybit; |
| |
| dev->buzzer_pending = 0; |
| dev->ctl_urb_pending = 1; |
| |
| error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); |
| if (error) |
| dev_err(&dev->intf->dev, |
| "%s: usb_submit_urb (urb_ctl) failed %d\n", |
| __func__, error); |
| } |
| |
| spin_unlock_irqrestore(&dev->ctl_submit_lock, flags); |
| } |
| |
| static void cm109_urb_ctl_callback(struct urb *urb) |
| { |
| struct cm109_dev *dev = urb->context; |
| const int status = urb->status; |
| int error; |
| unsigned long flags; |
| |
| dev_dbg(&dev->intf->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n", |
| dev->ctl_data->byte[0], |
| dev->ctl_data->byte[1], |
| dev->ctl_data->byte[2], |
| dev->ctl_data->byte[3]); |
| |
| if (status) { |
| if (status == -ESHUTDOWN) |
| return; |
| dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", |
| __func__, status); |
| } |
| |
| spin_lock_irqsave(&dev->ctl_submit_lock, flags); |
| |
| dev->ctl_urb_pending = 0; |
| |
| if (likely(!dev->shutdown)) { |
| |
| if (dev->buzzer_pending || status) { |
| dev->buzzer_pending = 0; |
| dev->ctl_urb_pending = 1; |
| 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, |
| dev->ctl_req->bRequestType, |
| le16_to_cpu(dev->ctl_req->wValue), |
| le16_to_cpu(dev->ctl_req->wIndex), |
| dev->ctl_data, |
| 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; |
| |
| error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL); |
| if (error) |
| 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); |
| if (dev->ctl_data) |
| usb_free_coherent(dev->udev, USB_PKT_LEN, |
| dev->ctl_data, dev->ctl_dma); |
| if (dev->irq_data) |
| 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"); |