diff options
Diffstat (limited to 'drivers/input/misc/cm109.c')
| -rw-r--r-- | drivers/input/misc/cm109.c | 949 |
1 files changed, 949 insertions, 0 deletions
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c new file mode 100644 index 000000000..f515fae46 --- /dev/null +++ b/drivers/input/misc/cm109.c @@ -0,0 +1,949 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Driver for the VoIP USB phones with CM109 chipsets. + * + * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org> + */ + +/* + * 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; + + 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"); |