// 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"
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#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");
|
