From patchwork Tue Oct 20 14:00:57 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarod Wilson X-Patchwork-Id: 54961 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n9KE3gZ4021523 for ; Tue, 20 Oct 2009 14:03:42 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752430AbZJTODg (ORCPT ); Tue, 20 Oct 2009 10:03:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752357AbZJTODg (ORCPT ); Tue, 20 Oct 2009 10:03:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41103 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752273AbZJTOD3 (ORCPT ); Tue, 20 Oct 2009 10:03:29 -0400 Received: from int-mx04.intmail.prod.int.phx2.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.17]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id n9KE3T1H028158; Tue, 20 Oct 2009 10:03:29 -0400 Received: from xavier.bos.redhat.com (xavier.bos.redhat.com [10.16.16.50]) by int-mx04.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id n9KE3Rv1014187; Tue, 20 Oct 2009 10:03:28 -0400 From: Jarod Wilson Organization: Red Hat, Inc. To: linux-kernel@vger.kernel.org Subject: [PATCH 3/3 v2] lirc driver for SoundGraph iMON IR receivers and displays Date: Tue, 20 Oct 2009 10:00:57 -0400 User-Agent: KMail/1.12.1 (Linux/2.6.30.8-64.fc11.x86_64; KDE/4.3.1; x86_64; ; ) Cc: linux-input@vger.kernel.org, linux-media@vger.kernel.org, Janne Grunau , Christoph Bartelmus References: <200910200956.33391.jarod@redhat.com> In-Reply-To: <200910200956.33391.jarod@redhat.com> MIME-Version: 1.0 Message-Id: <200910201000.57536.jarod@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.17 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Index: b/drivers/input/lirc/Kconfig =================================================================== --- a/drivers/input/lirc/Kconfig +++ b/drivers/input/lirc/Kconfig @@ -11,6 +11,12 @@ menuconfig INPUT_LIRC if INPUT_LIRC +config LIRC_IMON + tristate "SoundGraph iMON Receiver and Display" + depends on LIRC_DEV + help + Driver for the SoundGraph iMON IR Receiver and Display + config LIRC_MCEUSB tristate "Windows Media Center Ed. USB IR Transceiver" depends on LIRC_DEV && USB Index: b/drivers/input/lirc/Makefile =================================================================== --- a/drivers/input/lirc/Makefile +++ b/drivers/input/lirc/Makefile @@ -4,4 +4,5 @@ # Each configuration option enables a list of files. obj-$(CONFIG_INPUT_LIRC) += lirc_dev.o +obj-$(CONFIG_LIRC_IMON) += lirc_imon.o obj-$(CONFIG_LIRC_MCEUSB) += lirc_mceusb.o Index: b/drivers/input/lirc/lirc_imon.c =================================================================== --- /dev/null +++ b/drivers/input/lirc/lirc_imon.c @@ -0,0 +1,2471 @@ +/* + * lirc_imon.c: LIRC/VFD/LCD driver for SoundGraph iMON IR/VFD/LCD + * including the iMON PAD model + * + * Copyright(C) 2004 Venky Raju(dev@venky.ws) + * Copyright(C) 2009 Jarod Wilson + * + * lirc_imon 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; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "lirc.h" +#include "lirc_dev.h" +#include "lirc_imon.h" + + +#define MOD_AUTHOR "Venky Raju " +#define MOD_AUTHOR2 "Jarod Wilson " +#define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" +#define MOD_NAME "lirc_imon" +#define MOD_VERSION "0.7" + +#define DISPLAY_MINOR_BASE 144 +#define DEVICE_NAME "lcd%d" + +#define BUF_CHUNK_SIZE 4 +#define BUF_SIZE 128 + +#define BIT_DURATION 250 /* each bit received is 250us */ + +#define IMON_CLOCK_ENABLE_PACKETS 2 + +/*** P R O T O T Y P E S ***/ + +/* USB Callback prototypes */ +static int imon_probe(struct usb_interface *interface, + const struct usb_device_id *id); +static void imon_disconnect(struct usb_interface *interface); +static void usb_rx_callback_intf0(struct urb *urb); +static void usb_rx_callback_intf1(struct urb *urb); +static void usb_tx_callback(struct urb *urb); + +/* suspend/resume support */ +static int imon_resume(struct usb_interface *intf); +static int imon_suspend(struct usb_interface *intf, pm_message_t message); + +/* Display file_operations function prototypes */ +static int display_open(struct inode *inode, struct file *file); +static int display_close(struct inode *inode, struct file *file); + +/* VFD write operation */ +static ssize_t vfd_write(struct file *file, const char *buf, + size_t n_bytes, loff_t *pos); + +/* LCD file_operations override function prototypes */ +static ssize_t lcd_write(struct file *file, const char *buf, + size_t n_bytes, loff_t *pos); + +/* LIRC driver function prototypes */ +static int ir_open(void *data); +static void ir_close(void *data); + +/* Driver init/exit prototypes */ +static int __init imon_init(void); +static void __exit imon_exit(void); + +/*** G L O B A L S ***/ + +struct imon_context { + struct usb_device *usbdev_intf0; + /* Newer devices have two interfaces */ + struct usb_device *usbdev_intf1; + int display_supported; /* not all controllers do */ + int display_isopen; /* display port has been opened */ + int ir_isopen; /* IR port open */ + int ir_isassociating; /* IR port open for association */ + int dev_present_intf0; /* USB device presence, interface 0 */ + int dev_present_intf1; /* USB device presence, interface 1 */ + struct mutex lock; /* to lock this object */ + wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ + + int vfd_proto_6p; /* some VFD require a 6th packet */ + int ir_onboard_decode; /* IR signals decoded onboard */ + + struct lirc_driver *driver; + struct usb_endpoint_descriptor *rx_endpoint_intf0; + struct usb_endpoint_descriptor *rx_endpoint_intf1; + struct usb_endpoint_descriptor *tx_endpoint; + struct urb *rx_urb_intf0; + struct urb *rx_urb_intf1; + struct urb *tx_urb; + int tx_control; + unsigned char usb_rx_buf[8]; + unsigned char usb_tx_buf[8]; + + struct rx_data { + int count; /* length of 0 or 1 sequence */ + int prev_bit; /* logic level of sequence */ + int initial_space; /* initial space flag */ + } rx; + + struct tx_t { + unsigned char data_buf[35]; /* user data buffer */ + struct completion finished; /* wait for write to finish */ + atomic_t busy; /* write in progress */ + int status; /* status of tx completion */ + } tx; + + int ffdc_dev; /* is this the overused ffdc ID? */ + int ir_protocol; /* iMON or MCE (RC6) IR protocol? */ + struct input_dev *idev; /* input device for remote */ + struct input_dev *touch; /* input device for touchscreen */ + u16 last_keycode; /* last reported input keycode */ + u8 last_mce_byte; /* last mce toggle byte */ + int display_type; /* store the display type */ + int pad_mouse; /* toggle kbd(0)/mouse(1) mode */ + int touch_x; /* x coordinate on touchscreen */ + int touch_y; /* y coordinate on touchscreen */ + char name_idev[128]; + char phys_idev[64]; + char name_touch[128]; + char phys_touch[64]; + struct timer_list timer; +}; + +#define TOUCH_TIMEOUT (HZ/30) + +/* display file operations. Nb: lcd_write will be subbed in as needed later */ +static struct file_operations display_fops = { + .owner = THIS_MODULE, + .open = &display_open, + .write = &vfd_write, + .release = &display_close +}; + +enum { + IMON_DISPLAY_TYPE_AUTO = 0, + IMON_DISPLAY_TYPE_VFD = 1, + IMON_DISPLAY_TYPE_LCD = 2, + IMON_DISPLAY_TYPE_VGA = 3, + IMON_DISPLAY_TYPE_NONE = 4, +}; + +enum { + IMON_IR_PROTOCOL_IMON = 0, + IMON_IR_PROTOCOL_MCE = 1, + IMON_IR_PROTOCOL_IMON_NOPAD = 2, +}; +/* + * USB Device ID for iMON USB Control Boards + * + * The Windows drivers contain 6 different inf files, more or less one for + * each new device until the 0x0034-0x0046 devices, which all use the same + * driver. Some of the devices in the 34-46 range haven't been definitively + * identified yet. Early devices have either a TriGem Computer, Inc. or a + * Samsung vendor ID (0x0aa8 and 0x04e8 respectively), while all later + * devices use the SoundGraph vendor ID (0x15c2). + */ +static struct usb_device_id imon_usb_id_table[] = { + /* TriGem iMON (IR only) -- TG_iMON.inf */ + { USB_DEVICE(0x0aa8, 0x8001) }, + + /* SoundGraph iMON (IR only) -- sg_imon.inf */ + { USB_DEVICE(0x04e8, 0xff30) }, + + /* SoundGraph iMON VFD (IR & VFD) -- iMON_VFD.inf */ + { USB_DEVICE(0x0aa8, 0xffda) }, + + /* SoundGraph iMON SS (IR & VFD) -- iMON_SS.inf */ + { USB_DEVICE(0x15c2, 0xffda) }, + + /* + * Several devices with this same device ID, all use iMON_PAD.inf + * SoundGraph iMON PAD (IR & VFD) + * SoundGraph iMON PAD (IR & LCD) + * SoundGraph iMON Knob (IR only) + */ + { USB_DEVICE(0x15c2, 0xffdc) }, + + /* + * Newer devices, all driven by the latest iMON Windows driver, full + * list of device IDs extracted via 'strings Setup/data1.hdr |grep 15c2' + * Need user input to fill in details on unknown devices. + */ + /* SoundGraph iMON OEM Touch LCD (IR & 7" VGA LCD) */ + { USB_DEVICE(0x15c2, 0x0034) }, + /* SoundGraph iMON OEM Touch LCD (IR & 4.3" VGA LCD) */ + { USB_DEVICE(0x15c2, 0x0035) }, + /* SoundGraph iMON OEM VFD (IR & VFD) */ + { USB_DEVICE(0x15c2, 0x0036) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x0037) }, + /* SoundGraph iMON OEM LCD (IR & LCD) */ + { USB_DEVICE(0x15c2, 0x0038) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x0039) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x003a) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x003b) }, + /* SoundGraph iMON OEM Inside (IR only) */ + { USB_DEVICE(0x15c2, 0x003c) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x003d) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x003e) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x003f) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x0040) }, + /* SoundGraph iMON MINI (IR only) */ + { USB_DEVICE(0x15c2, 0x0041) }, + /* Antec Veris Multimedia Station EZ External (IR only) */ + { USB_DEVICE(0x15c2, 0x0042) }, + /* Antec Veris Multimedia Station Basic Internal (IR only) */ + { USB_DEVICE(0x15c2, 0x0043) }, + /* Antec Veris Multimedia Station Elite (IR & VFD) */ + { USB_DEVICE(0x15c2, 0x0044) }, + /* Antec Veris Multimedia Station Premiere (IR & LCD) */ + { USB_DEVICE(0x15c2, 0x0045) }, + /* device specifics unknown */ + { USB_DEVICE(0x15c2, 0x0046) }, + {} +}; + +/* Some iMON VFD models requires a 6th packet for VFD writes */ +static struct usb_device_id vfd_proto_6p_list[] = { + { USB_DEVICE(0x15c2, 0xffda) }, + { USB_DEVICE(0x15c2, 0xffdc) }, + { USB_DEVICE(0x15c2, 0x0036) }, + { USB_DEVICE(0x15c2, 0x0044) }, + {} +}; + +/* newer iMON models use control endpoints */ +static struct usb_device_id ctl_ep_device_list[] = { + { USB_DEVICE(0x15c2, 0x0034) }, + { USB_DEVICE(0x15c2, 0x0035) }, + { USB_DEVICE(0x15c2, 0x0036) }, + { USB_DEVICE(0x15c2, 0x0037) }, + { USB_DEVICE(0x15c2, 0x0038) }, + { USB_DEVICE(0x15c2, 0x0039) }, + { USB_DEVICE(0x15c2, 0x003a) }, + { USB_DEVICE(0x15c2, 0x003b) }, + { USB_DEVICE(0x15c2, 0x003c) }, + { USB_DEVICE(0x15c2, 0x003d) }, + { USB_DEVICE(0x15c2, 0x003e) }, + { USB_DEVICE(0x15c2, 0x003f) }, + { USB_DEVICE(0x15c2, 0x0040) }, + { USB_DEVICE(0x15c2, 0x0041) }, + { USB_DEVICE(0x15c2, 0x0042) }, + { USB_DEVICE(0x15c2, 0x0043) }, + { USB_DEVICE(0x15c2, 0x0044) }, + { USB_DEVICE(0x15c2, 0x0045) }, + { USB_DEVICE(0x15c2, 0x0046) }, + {} +}; + +/* iMON LCD models use a different write op */ +static struct usb_device_id lcd_device_list[] = { + { USB_DEVICE(0x15c2, 0xffdc) }, + { USB_DEVICE(0x15c2, 0x0038) }, + { USB_DEVICE(0x15c2, 0x0045) }, + {} +}; + +/* iMON devices with front panel buttons or touchscreen need a larger buffer */ +static struct usb_device_id large_buffer_list[] = { + { USB_DEVICE(0x15c2, 0x0034) }, + { USB_DEVICE(0x15c2, 0x0035) }, + { USB_DEVICE(0x15c2, 0x0038) }, + { USB_DEVICE(0x15c2, 0x0045) }, +}; + +/* Newer iMON models decode the signal onboard */ +static struct usb_device_id ir_onboard_decode_list[] = { + { USB_DEVICE(0x15c2, 0xffdc) }, + { USB_DEVICE(0x15c2, 0x0034) }, + { USB_DEVICE(0x15c2, 0x0035) }, + { USB_DEVICE(0x15c2, 0x0036) }, + { USB_DEVICE(0x15c2, 0x0037) }, + { USB_DEVICE(0x15c2, 0x0038) }, + { USB_DEVICE(0x15c2, 0x0039) }, + { USB_DEVICE(0x15c2, 0x003a) }, + { USB_DEVICE(0x15c2, 0x003b) }, + { USB_DEVICE(0x15c2, 0x003c) }, + { USB_DEVICE(0x15c2, 0x003d) }, + { USB_DEVICE(0x15c2, 0x003e) }, + { USB_DEVICE(0x15c2, 0x003f) }, + { USB_DEVICE(0x15c2, 0x0040) }, + { USB_DEVICE(0x15c2, 0x0041) }, + { USB_DEVICE(0x15c2, 0x0042) }, + { USB_DEVICE(0x15c2, 0x0043) }, + { USB_DEVICE(0x15c2, 0x0044) }, + { USB_DEVICE(0x15c2, 0x0045) }, + { USB_DEVICE(0x15c2, 0x0046) }, + {} +}; + +/* Some iMON devices have no lcd/vfd, don't set one up */ +static struct usb_device_id ir_only_list[] = { + { USB_DEVICE(0x0aa8, 0x8001) }, + { USB_DEVICE(0x04e8, 0xff30) }, + /* the first imon lcd and the knob share this device id. :\ */ + /*{ USB_DEVICE(0x15c2, 0xffdc) },*/ + { USB_DEVICE(0x15c2, 0x003c) }, + { USB_DEVICE(0x15c2, 0x0041) }, + { USB_DEVICE(0x15c2, 0x0042) }, + { USB_DEVICE(0x15c2, 0x0043) }, + {} +}; + +/* iMON devices with VGA touchscreens */ +static struct usb_device_id imon_touchscreen_list[] = { + { USB_DEVICE(0x15c2, 0x0034) }, + { USB_DEVICE(0x15c2, 0x0035) }, + {} +}; + +/* USB Device data */ +static struct usb_driver imon_driver = { + .name = MOD_NAME, + .probe = imon_probe, + .disconnect = imon_disconnect, + .suspend = imon_suspend, + .resume = imon_resume, + .id_table = imon_usb_id_table, +}; + +static struct usb_class_driver imon_class = { + .name = DEVICE_NAME, + .fops = &display_fops, + .minor_base = DISPLAY_MINOR_BASE, +}; + +/* to prevent races between open() and disconnect(), probing, etc */ +static DEFINE_MUTEX(driver_lock); + +static int debug; + +/* lcd, vfd, vga or none? should be auto-detected, but can be overridden... */ +static int display_type; + +/* IR protocol: native iMON, Windows MCE (RC-6), or iMON w/o PAD stabilize */ +static int ir_protocol; + +/* + * In certain use cases, mouse mode isn't really helpful, and could actually + * cause confusion, so allow disabling it when the IR device is open. + */ +static int nomouse; + +/* threshold at which a pad push registers as an arrow key in kbd mode */ +static int pad_thresh; + +/* run onboard decode device in lirc mode rather than as pure input device */ +static int lirc_mode; + +/*** M O D U L E C O D E ***/ + +MODULE_AUTHOR(MOD_AUTHOR); +MODULE_AUTHOR(MOD_AUTHOR2); +MODULE_DESCRIPTION(MOD_DESC); +MODULE_VERSION(MOD_VERSION); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(usb, imon_usb_id_table); +module_param(debug, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes(default: no)"); +module_param(display_type, int, S_IRUGO); +MODULE_PARM_DESC(display_type, "Type of attached display. 0=autodetect, " + "1=vfd, 2=lcd, 3=vga, 4=none (default: autodetect)"); +module_param(ir_protocol, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ir_protocol, "Which IR protocol to use. 0=native iMON, " + "1=Windows Media Center Ed. (RC-6), 2=iMON w/o PAD stabilize " + "(default: native iMON)"); +module_param(nomouse, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(nomouse, "Disable mouse input device mode when IR device is " + "open. 0=don't disable, 1=disable. (default: don't disable)"); +module_param(pad_thresh, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(pad_thresh, "Threshold at which a pad push registers as an " + "arrow key in kbd mode (default: 28)"); +module_param(lirc_mode, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(lirc_mode, "Run onboard decoding receiver in lirc mode rather " + "than as a pure input device"); + +static void free_imon_context(struct imon_context *context) +{ + usb_free_urb(context->tx_urb); + usb_free_urb(context->rx_urb_intf0); + usb_free_urb(context->rx_urb_intf1); + lirc_buffer_free(context->driver->rbuf); + kfree(context->driver->rbuf); + kfree(context->driver); + kfree(context); + + dev_dbg(context->driver->dev, "%s: iMON context freed\n", __func__); +} + +static void deregister_from_lirc(struct imon_context *context) +{ + int retval; + int minor = context->driver->minor; + + retval = lirc_unregister_driver(minor); + if (retval) + err("%s: unable to deregister from lirc(%d)", + __func__, retval); + else + printk(KERN_INFO MOD_NAME ": Deregistered iMON driver " + "(minor:%d)\n", minor); + +} + +/** + * Called when the Display device (e.g. /dev/lcd0) + * is opened by the application. + */ +static int display_open(struct inode *inode, struct file *file) +{ + struct usb_interface *interface; + struct imon_context *context = NULL; + int subminor; + int retval = 0; + + /* prevent races with disconnect */ + mutex_lock(&driver_lock); + + subminor = iminor(inode); + interface = usb_find_interface(&imon_driver, subminor); + if (!interface) { + err("%s: could not find interface for minor %d", + __func__, subminor); + retval = -ENODEV; + goto exit; + } + context = usb_get_intfdata(interface); + + if (!context) { + err("%s: no context found for minor %d", + __func__, subminor); + retval = -ENODEV; + goto exit; + } + + mutex_lock(&context->lock); + + if (!context->display_supported) { + err("%s: display not supported by device", __func__); + retval = -ENODEV; + } else if (context->display_isopen) { + err("%s: display port is already open", __func__); + retval = -EBUSY; + } else { + context->display_isopen = 1; + file->private_data = context; + dev_info(context->driver->dev, "display port opened\n"); + } + + mutex_unlock(&context->lock); + +exit: + mutex_unlock(&driver_lock); + return retval; +} + +/** + * Called when the display device (e.g. /dev/lcd0) + * is closed by the application. + */ +static int display_close(struct inode *inode, struct file *file) +{ + struct imon_context *context = NULL; + int retval = 0; + + context = (struct imon_context *)file->private_data; + + if (!context) { + err("%s: no context for device", __func__); + return -ENODEV; + } + + mutex_lock(&context->lock); + + if (!context->display_supported) { + err("%s: display not supported by device", __func__); + retval = -ENODEV; + } else if (!context->display_isopen) { + err("%s: display is not open", __func__); + retval = -EIO; + } else { + context->display_isopen = 0; + dev_info(context->driver->dev, "display port closed\n"); + if (!context->dev_present_intf0 && !context->ir_isopen) { + /* + * Device disconnected before close and IR port is not + * open. If IR port is open, context will be deleted by + * ir_close. + */ + mutex_unlock(&context->lock); + free_imon_context(context); + return retval; + } + } + + mutex_unlock(&context->lock); + return retval; +} + +/** + * Sends a packet to the device -- this function must be called + * with context->lock held. + */ +static int send_packet(struct imon_context *context) +{ + unsigned int pipe; + int interval = 0; + int retval = 0; + struct usb_ctrlrequest *control_req = NULL; + + /* Check if we need to use control or interrupt urb */ + if (!context->tx_control) { + pipe = usb_sndintpipe(context->usbdev_intf0, + context->tx_endpoint->bEndpointAddress); + interval = context->tx_endpoint->bInterval; + + usb_fill_int_urb(context->tx_urb, context->usbdev_intf0, pipe, + context->usb_tx_buf, + sizeof(context->usb_tx_buf), + usb_tx_callback, context, interval); + + context->tx_urb->actual_length = 0; + } else { + /* fill request into kmalloc'ed space: */ + control_req = kmalloc(sizeof(struct usb_ctrlrequest), + GFP_KERNEL); + if (control_req == NULL) + return -ENOMEM; + + /* setup packet is '21 09 0200 0001 0008' */ + control_req->bRequestType = 0x21; + control_req->bRequest = 0x09; + control_req->wValue = cpu_to_le16(0x0200); + control_req->wIndex = cpu_to_le16(0x0001); + control_req->wLength = cpu_to_le16(0x0008); + + /* control pipe is endpoint 0x00 */ + pipe = usb_sndctrlpipe(context->usbdev_intf0, 0); + + /* build the control urb */ + usb_fill_control_urb(context->tx_urb, context->usbdev_intf0, + pipe, (unsigned char *)control_req, + context->usb_tx_buf, + sizeof(context->usb_tx_buf), + usb_tx_callback, context); + context->tx_urb->actual_length = 0; + } + + init_completion(&context->tx.finished); + atomic_set(&(context->tx.busy), 1); + + retval = usb_submit_urb(context->tx_urb, GFP_KERNEL); + if (retval) { + atomic_set(&(context->tx.busy), 0); + err("%s: error submitting urb(%d)", __func__, retval); + } else { + /* Wait for transmission to complete (or abort) */ + mutex_unlock(&context->lock); + retval = wait_for_completion_interruptible( + &context->tx.finished); + if (retval) + err("%s: task interrupted", __func__); + mutex_lock(&context->lock); + + retval = context->tx.status; + if (retval) + err("%s: packet tx failed (%d)", __func__, retval); + } + + kfree(control_req); + + return retval; +} + +/** + * Sends an associate packet to the iMON 2.4G. + * + * This might not be such a good idea, since it has an id collision with + * some versions of the "IR & VFD" combo. The only way to determine if it + * is an RF version is to look at the product description string. (Which + * we currently do not fetch). + */ +static int send_associate_24g(struct imon_context *context) +{ + int retval; + const unsigned char packet[8] = { 0x01, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x20 }; + + if (!context) { + err("%s: no context for device", __func__); + return -ENODEV; + } + + if (!context->dev_present_intf0) { + err("%s: no iMON device present", __func__); + return -ENODEV; + } + + memcpy(context->usb_tx_buf, packet, sizeof(packet)); + retval = send_packet(context); + + return retval; +} + +/** + * Sends packets to setup and show clock on iMON display + * + * Arguments: year - last 2 digits of year, month - 1..12, + * day - 1..31, dow - day of the week (0-Sun...6-Sat), + * hour - 0..23, minute - 0..59, second - 0..59 + */ +static int send_set_imon_clock(struct imon_context *context, + unsigned int year, unsigned int month, + unsigned int day, unsigned int dow, + unsigned int hour, unsigned int minute, + unsigned int second) +{ + unsigned char clock_enable_pkt[IMON_CLOCK_ENABLE_PACKETS][8]; + int retval = 0; + int i; + + if (!context) { + err("%s: no context for device", __func__); + return -ENODEV; + } + + switch (context->display_type) { + case IMON_DISPLAY_TYPE_LCD: + clock_enable_pkt[0][0] = 0x80; + clock_enable_pkt[0][1] = year; + clock_enable_pkt[0][2] = month-1; + clock_enable_pkt[0][3] = day; + clock_enable_pkt[0][4] = hour; + clock_enable_pkt[0][5] = minute; + clock_enable_pkt[0][6] = second; + + clock_enable_pkt[1][0] = 0x80; + clock_enable_pkt[1][1] = 0; + clock_enable_pkt[1][2] = 0; + clock_enable_pkt[1][3] = 0; + clock_enable_pkt[1][4] = 0; + clock_enable_pkt[1][5] = 0; + clock_enable_pkt[1][6] = 0; + + if (context->ffdc_dev) { + clock_enable_pkt[0][7] = 0x50; + clock_enable_pkt[1][7] = 0x51; + } else { + clock_enable_pkt[0][7] = 0x88; + clock_enable_pkt[1][7] = 0x8a; + } + + break; + + case IMON_DISPLAY_TYPE_VFD: + clock_enable_pkt[0][0] = year; + clock_enable_pkt[0][1] = month-1; + clock_enable_pkt[0][2] = day; + clock_enable_pkt[0][3] = dow; + clock_enable_pkt[0][4] = hour; + clock_enable_pkt[0][5] = minute; + clock_enable_pkt[0][6] = second; + clock_enable_pkt[0][7] = 0x40; + + clock_enable_pkt[1][0] = 0; + clock_enable_pkt[1][1] = 0; + clock_enable_pkt[1][2] = 1; + clock_enable_pkt[1][3] = 0; + clock_enable_pkt[1][4] = 0; + clock_enable_pkt[1][5] = 0; + clock_enable_pkt[1][6] = 0; + clock_enable_pkt[1][7] = 0x42; + + break; + + default: + return -ENODEV; + } + + for (i = 0; i < IMON_CLOCK_ENABLE_PACKETS; i++) { + memcpy(context->usb_tx_buf, clock_enable_pkt[i], 8); + retval = send_packet(context); + if (retval) { + err("%s: send_packet failed for packet %d", + __func__, i); + break; + } + } + + return retval; +} + +/** + * These are the sysfs functions to handle the association on the iMON 2.4G LT. + */ +static ssize_t show_associate_remote(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct imon_context *context = dev_get_drvdata(d); + + if (!context) + return -ENODEV; + + mutex_lock(&context->lock); + if (context->ir_isassociating) + strcpy(buf, "associating\n"); + else if (context->ir_isopen) + strcpy(buf, "open\n"); + else + strcpy(buf, "closed\n"); + + dev_info(d, "Visit http://www.lirc.org/html/imon-24g.html for " + "instructions on how to associate your iMON 2.4G DT/LT " + "remote\n"); + mutex_unlock(&context->lock); + return strlen(buf); +} + +static ssize_t store_associate_remote(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct imon_context *context; + + context = dev_get_drvdata(d); + + if (!context) + return -ENODEV; + + mutex_lock(&context->lock); + if (!context->ir_isopen) { + mutex_unlock(&context->lock); + return -EINVAL; + } + + if (context->ir_isopen) { + context->ir_isassociating = 1; + send_associate_24g(context); + } + mutex_unlock(&context->lock); + + return count; +} + +/** + * sysfs functions to control internal imon clock + */ +static ssize_t show_imon_clock(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct imon_context *context = dev_get_drvdata(d); + size_t len; + + if (!context) + return -ENODEV; + + mutex_lock(&context->lock); + + if (!context->display_supported) { + len = snprintf(buf, PAGE_SIZE, "Not supported."); + } else { + len = snprintf(buf, PAGE_SIZE, + "To set the clock on your iMON display:\n" + "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n" + "%s", context->display_isopen ? + "\nNOTE: imon device must be closed\n" : ""); + } + + mutex_unlock(&context->lock); + + return len; +} + +static ssize_t store_imon_clock(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct imon_context *context = dev_get_drvdata(d); + ssize_t retval; + unsigned int year, month, day, dow, hour, minute, second; + + if (!context) + return -ENODEV; + + mutex_lock(&context->lock); + + if (!context->display_supported) { + retval = -ENODEV; + goto exit; + } else if (context->display_isopen) { + retval = -EBUSY; + goto exit; + } + + if (sscanf(buf, "%u %u %u %u %u %u %u", &year, &month, &day, &dow, + &hour, &minute, &second) != 7) { + retval = -EINVAL; + goto exit; + } + + if ((month < 1 || month > 12) || + (day < 1 || day > 31) || (dow > 6) || + (hour > 23) || (minute > 59) || (second > 59)) { + retval = -EINVAL; + goto exit; + } + + retval = send_set_imon_clock(context, year, month, day, dow, + hour, minute, second); + if (retval) + goto exit; + + retval = count; +exit: + mutex_unlock(&context->lock); + + return retval; +} + + +static DEVICE_ATTR(imon_clock, S_IWUSR | S_IRUGO, show_imon_clock, + store_imon_clock); + +static DEVICE_ATTR(associate_remote, S_IWUSR | S_IRUGO, show_associate_remote, + store_associate_remote); + +static struct attribute *imon_display_sysfs_entries[] = { + &dev_attr_imon_clock.attr, + NULL +}; + +static struct attribute_group imon_display_attribute_group = { + .attrs = imon_display_sysfs_entries +}; + +static struct attribute *imon_rf_sysfs_entries[] = { + &dev_attr_associate_remote.attr, + NULL +}; + +static struct attribute_group imon_rf_attribute_group = { + .attrs = imon_rf_sysfs_entries +}; + +/** + * Writes data to the VFD. The iMON VFD is 2x16 characters + * and requires data in 5 consecutive USB interrupt packets, + * each packet but the last carrying 7 bytes. + * + * I don't know if the VFD board supports features such as + * scrolling, clearing rows, blanking, etc. so at + * the caller must provide a full screen of data. If fewer + * than 32 bytes are provided spaces will be appended to + * generate a full screen. + */ +static ssize_t vfd_write(struct file *file, const char *buf, + size_t n_bytes, loff_t *pos) +{ + int i; + int offset; + int seq; + int retval = 0; + struct imon_context *context; + const unsigned char vfd_packet6[] = { + 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF }; + + context = (struct imon_context *)file->private_data; + if (!context) { + err("%s: no context for device", __func__); + return -ENODEV; + } + + mutex_lock(&context->lock); + + if (!context->dev_present_intf0) { + err("%s: no iMON device present", __func__); + retval = -ENODEV; + goto exit; + } + + if (n_bytes <= 0 || n_bytes > 32) { + err("%s: invalid payload size", __func__); + retval = -EINVAL; + goto exit; + } + + if (copy_from_user(context->tx.data_buf, buf, n_bytes)) { + retval = -EFAULT; + goto exit; + } + + /* Pad with spaces */ + for (i = n_bytes; i < 32; ++i) + context->tx.data_buf[i] = ' '; + + for (i = 32; i < 35; ++i) + context->tx.data_buf[i] = 0xFF; + + offset = 0; + seq = 0; + + do { + memcpy(context->usb_tx_buf, context->tx.data_buf + offset, 7); + context->usb_tx_buf[7] = (unsigned char) seq; + + retval = send_packet(context); + if (retval) { + err("%s: send packet failed for packet #%d", + __func__, seq/2); + goto exit; + } else { + seq += 2; + offset += 7; + } + + } while (offset < 35); + + if (context->vfd_proto_6p) { + /* Send packet #6 */ + memcpy(context->usb_tx_buf, &vfd_packet6, sizeof(vfd_packet6)); + context->usb_tx_buf[7] = (unsigned char) seq; + retval = send_packet(context); + if (retval) + err("%s: send packet failed for packet #%d", + __func__, seq/2); + } + +exit: + mutex_unlock(&context->lock); + + return (!retval) ? n_bytes : retval; +} + +/** + * Writes data to the LCD. The iMON OEM LCD screen excepts 8-byte + * packets. We accept data as 16 hexadecimal digits, followed by a + * newline (to make it easy to drive the device from a command-line + * -- even though the actual binary data is a bit complicated). + * + * The device itself is not a "traditional" text-mode display. It's + * actually a 16x96 pixel bitmap display. That means if you want to + * display text, you've got to have your own "font" and translate the + * text into bitmaps for display. This is really flexible (you can + * display whatever diacritics you need, and so on), but it's also + * a lot more complicated than most LCDs... + */ +static ssize_t lcd_write(struct file *file, const char *buf, + size_t n_bytes, loff_t *pos) +{ + int retval = 0; + struct imon_context *context; + + context = (struct imon_context *)file->private_data; + if (!context) { + err("%s: no context for device", __func__); + return -ENODEV; + } + + mutex_lock(&context->lock); + + if (!context->display_supported) { + err("%s: no iMON display present", __func__); + retval = -ENODEV; + goto exit; + } + + if (n_bytes != 8) { + err("%s: invalid payload size: %d (expecting 8)", + __func__, (int) n_bytes); + retval = -EINVAL; + goto exit; + } + + if (copy_from_user(context->usb_tx_buf, buf, 8)) { + retval = -EFAULT; + goto exit; + } + + retval = send_packet(context); + if (retval) { + err("%s: send packet failed!", __func__); + goto exit; + } else { + dev_dbg(context->driver->dev, "%s: write %d bytes to LCD\n", + __func__, (int) n_bytes); + } +exit: + mutex_unlock(&context->lock); + return (!retval) ? n_bytes : retval; +} + +/** + * Callback function for USB core API: transmit data + */ +static void usb_tx_callback(struct urb *urb) +{ + struct imon_context *context; + + if (!urb) + return; + context = (struct imon_context *)urb->context; + if (!context) + return; + + context->tx.status = urb->status; + + /* notify waiters that write has finished */ + atomic_set(&context->tx.busy, 0); + complete(&context->tx.finished); + + return; +} + +/** + * iMON IR receivers support two different signal sets -- those used by + * the iMON remotes, and those used by the Windows MCE remotes (which is + * really just RC-6), but only one or the other at a time, as the signals + * are decoded onboard the receiver. + */ +static void imon_set_ir_protocol(struct imon_context *context) +{ + int retval; + struct device *dev = context->driver->dev; + unsigned char ir_proto_packet[] = + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; + + switch (ir_protocol) { + case IMON_IR_PROTOCOL_MCE: + /* MCE proto not supported on devices without tx control */ + if (!context->tx_control) { + dev_info(dev, "%s: MCE IR proto not supported on this " + "device, using iMON protocol\n", __func__); + context->ir_protocol = IMON_IR_PROTOCOL_IMON; + return; + } + dev_dbg(dev, "Configuring IR receiver for MCE protocol\n"); + ir_proto_packet[0] = 0x01; + context->ir_protocol = IMON_IR_PROTOCOL_MCE; + break; + case IMON_IR_PROTOCOL_IMON: + dev_dbg(dev, "Configuring IR receiver for iMON protocol\n"); + /* ir_proto_packet[0] = 0x00; // already the default */ + context->ir_protocol = IMON_IR_PROTOCOL_IMON; + break; + case IMON_IR_PROTOCOL_IMON_NOPAD: + dev_dbg(dev, "Configuring IR receiver for iMON protocol " + "without PAD stabilize function enabled\n"); + /* ir_proto_packet[0] = 0x00; // already the default */ + context->ir_protocol = IMON_IR_PROTOCOL_IMON_NOPAD; + break; + default: + dev_info(dev, "%s: unknown IR protocol specified, will " + "just default to iMON protocol\n", __func__); + context->ir_protocol = IMON_IR_PROTOCOL_IMON; + break; + } + + /* Don't send config packet on devices w/o tx ctrl ep */ + if (!context->tx_control) + return; + + memcpy(context->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); + retval = send_packet(context); + if (retval) + dev_info(dev, "%s: failed to set remote type\n", __func__); +} + + +/** + * Called by lirc_dev when the application opens /dev/lirc + */ +static int ir_open(void *data) +{ + int retval = 0; + struct imon_context *context; + + /* prevent races with disconnect */ + mutex_lock(&driver_lock); + + context = (struct imon_context *)data; + + /* initial IR protocol decode variables */ + context->rx.count = 0; + context->rx.initial_space = 1; + context->rx.prev_bit = 0; + + /* set new IR protocol if it has changed since init or last open */ + if (ir_protocol != context->ir_protocol) { + mutex_lock(&context->lock); + imon_set_ir_protocol(context); + mutex_unlock(&context->lock); + } + + context->ir_isopen = 1; + dev_info(context->driver->dev, "IR port opened\n"); + + mutex_unlock(&driver_lock); + return retval; +} + +/** + * Called by lirc_dev when the application closes /dev/lirc + */ +static void ir_close(void *data) +{ + struct imon_context *context; + + context = (struct imon_context *)data; + if (!context) { + err("%s: no context for device", __func__); + return; + } + + mutex_lock(&context->lock); + + context->ir_isopen = 0; + context->ir_isassociating = 0; + dev_info(context->driver->dev, "IR port closed\n"); + + if (!context->dev_present_intf0) { + /* + * Device disconnected while IR port was still open. Driver + * was not deregistered at disconnect time, so do it now. + */ + deregister_from_lirc(context); + + if (!context->display_isopen) { + mutex_unlock(&context->lock); + free_imon_context(context); + return; + } + /* + * If display port is open, context will be deleted by + * display_close + */ + } + + mutex_unlock(&context->lock); + return; +} + +/** + * Convert bit count to time duration (in us) and submit + * the value to lirc_dev. + */ +static void submit_data(struct imon_context *context) +{ + unsigned char buf[4]; + int value = context->rx.count; + int i; + + dev_dbg(context->driver->dev, "submitting data to LIRC\n"); + + value *= BIT_DURATION; + value &= PULSE_MASK; + if (context->rx.prev_bit) + value |= PULSE_BIT; + + for (i = 0; i < 4; ++i) + buf[i] = value>>(i*8); + + lirc_buffer_write(context->driver->rbuf, buf); + wake_up(&context->driver->rbuf->wait_poll); + return; +} + +static inline int tv2int(const struct timeval *a, const struct timeval *b) +{ + int usecs = 0; + int sec = 0; + + if (b->tv_usec > a->tv_usec) { + usecs = 1000000; + sec--; + } + + usecs += a->tv_usec - b->tv_usec; + + sec += a->tv_sec - b->tv_sec; + sec *= 1000; + usecs /= 1000; + sec += usecs; + + if (sec < 0) + sec = 1000; + + return sec; +} + +/** + * The directional pad behaves a bit differently, depending on whether this is + * one of the older ffdc devices or a newer device. Newer devices appear to + * have a higher resolution matrix for more precise mouse movement, but it + * makes things overly sensitive in keyboard mode, so we do some interesting + * contortions to make it less touchy. Older devices run through the same + * routine with shorter timeout and a smaller threshold. + */ +static int stabilize(int a, int b, u16 timeout, u16 threshold) +{ + struct timeval ct; + static struct timeval prev_time = {0, 0}; + static struct timeval hit_time = {0, 0}; + static int x, y, prev_result, hits; + int result = 0; + int msec, msec_hit; + + do_gettimeofday(&ct); + msec = tv2int(&ct, &prev_time); + msec_hit = tv2int(&ct, &hit_time); + + if (msec > 100) { + x = 0; + y = 0; + hits = 0; + } + + x += a; + y += b; + + prev_time = ct; + + if (abs(x) > threshold || abs(y) > threshold) { + if (abs(y) > abs(x)) + result = (y > 0) ? 0x7F : 0x80; + else + result = (x > 0) ? 0x7F00 : 0x8000; + + x = 0; + y = 0; + + if (result == prev_result) { + hits++; + + if (hits > 3) { + switch (result) { + case 0x7F: + y = 17 * threshold / 30; + break; + case 0x80: + y -= 17 * threshold / 30; + break; + case 0x7F00: + x = 17 * threshold / 30; + break; + case 0x8000: + x -= 17 * threshold / 30; + break; + } + } + + if (hits == 2 && msec_hit < timeout) { + result = 0; + hits = 1; + } + } else { + prev_result = result; + hits = 1; + hit_time = ct; + } + } + + return result; +} + +static int imon_remote_key_lookup(u32 hw_code) +{ + int i; + u32 code = be32_to_cpu(hw_code); + + /* Look for the initial press of a button */ + for (i = 0; i < ARRAY_SIZE(imon_remote_key_table); i++) + if (imon_remote_key_table[i].hw_code == code) + return i; + + /* Look for the release of a button */ + for (i = 0; i < ARRAY_SIZE(imon_remote_key_table); i++) + if ((imon_remote_key_table[i].hw_code | 0x4000) == code) + return i; + + return -1; +} + +static int imon_mce_key_lookup(u32 hw_code) +{ + int i; + u32 code = be32_to_cpu(hw_code); + + for (i = 0; i < ARRAY_SIZE(imon_mce_key_table); i++) + if (imon_mce_key_table[i].hw_code == code) + return i; + + for (i = 0; i < ARRAY_SIZE(imon_mce_key_table); i++) + if (imon_mce_key_table[i].hw_code == (code | 0x8000)) + return i; + + return -1; +} + +static int imon_panel_key_lookup(u64 hw_code) +{ + int i; + u64 code = be64_to_cpu(hw_code); + + for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) + if (imon_panel_key_table[i].hw_code == (code | 0xfee)) + return i; + + return -1; +} + +/** + * Process the incoming packet + */ +static void imon_incoming_packet(struct imon_context *context, + struct urb *urb, int intf) +{ + int len = urb->actual_length; + unsigned char *buf = urb->transfer_buffer; + struct device *dev = context->driver->dev; + char rel_x = 0x00, rel_y = 0x00; + int octet, bit; + unsigned char mask; + int i, chunk_num; + int ts_input = 0; + int dir = 0; + u16 timeout, threshold; + u16 keycode; + u16 norelease = 0; + int k; + u32 remote_key = 0; + u64 panel_key = 0; + int mouse_input; + int right_shift = 1; + struct input_dev *idev = NULL; + struct input_dev *touch = NULL; + + idev = context->idev; + if (context->display_type == IMON_DISPLAY_TYPE_VGA) + touch = context->touch; + + /* Figure out what key was pressed */ + if (len == 8 && buf[7] == 0xee) { + memcpy(&panel_key, buf, len); + k = imon_panel_key_lookup(panel_key); + keycode = imon_panel_key_table[k].keycode; + } else { + memcpy(&remote_key, buf, sizeof(remote_key)); + if (context->ir_protocol == IMON_IR_PROTOCOL_MCE) { + k = imon_mce_key_lookup(remote_key); + keycode = imon_mce_key_table[k].keycode; + } else { + k = imon_remote_key_lookup(remote_key); + keycode = imon_remote_key_table[k].keycode; + } + } + + /* keyboard/mouse mode toggle button */ + if (keycode == KEY_KEYBOARD && (buf[2] & 0x40) != 0x40) { + if (!nomouse) { + context->pad_mouse = ~(context->pad_mouse) & 0x1; + dev_dbg(dev, "toggling to %s mode\n", + context->pad_mouse ? "mouse" : "keyboard"); + } else { + context->pad_mouse = 0; + dev_dbg(dev, "mouse mode was disabled by modparam\n"); + } + context->last_keycode = keycode; + return; + } + + /* send touchscreen events through input subsystem if touchpad data */ + if (context->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && + buf[7] == 0x86) { + if (touch == NULL) { + dev_warn(dev, "%s: touchscreen input device is " + "NULL!\n", __func__); + return; + } + mod_timer(&context->timer, jiffies + TOUCH_TIMEOUT); + context->touch_x = (buf[0] << 4) | (buf[1] >> 4); + context->touch_y = 0xfff - ((buf[2] << 4) | (buf[1] & 0xf)); + input_report_abs(touch, ABS_X, context->touch_x); + input_report_abs(touch, ABS_Y, context->touch_y); + input_report_key(touch, BTN_TOUCH, 0x01); + input_sync(touch); + ts_input = 1; + + /* send mouse events through input subsystem in mouse mode */ + } else if (context->pad_mouse || (!context->ir_isopen && lirc_mode)) { + /* newer iMON device PAD or mouse button */ + if (!context->ffdc_dev && (buf[0] & 0x01) && len == 5) { + mouse_input = 1; + rel_x = buf[2]; + rel_y = buf[3]; + right_shift = 1; + /* 0xffdc iMON PAD or mouse button input */ + } else if (context->ffdc_dev && (buf[0] & 0x40) && + !((buf[1] & 0x01) || ((buf[1] >> 2) & 0x01))) { + mouse_input = 1; + rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | + (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; + if (buf[0] & 0x02) + rel_x |= ~0x0f; + rel_x = rel_x + rel_x / 2; + rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | + (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; + if (buf[0] & 0x01) + rel_y |= ~0x0f; + rel_y = rel_y + rel_y / 2; + right_shift = 2; + /* some ffdc devices decode mouse buttons differently... */ + } else if (context->ffdc_dev && (buf[0] == 0x68)) { + mouse_input = 1; + right_shift = 2; + /* ch+/- buttons, which we use for an emulated scroll wheel */ + } else if (keycode == KEY_CHANNELUP && + (buf[2] & 0x40) != 0x40) { + mouse_input = 1; + dir = 1; + } else if (keycode == KEY_CHANNELDOWN && + (buf[2] & 0x40) != 0x40) { + mouse_input = 1; + dir = -1; + } else + mouse_input = 0; + + if (mouse_input) { + if (idev == NULL) { + dev_warn(dev, "%s: idev input device " + "is NULL!\n", __func__); + return; + } + dev_dbg(context->driver->dev, + "sending mouse data via input subsystem\n"); + + if (dir) { + input_report_rel(idev, REL_WHEEL, dir); + } else if (rel_x || rel_y) { + input_report_rel(idev, REL_X, rel_x); + input_report_rel(idev, REL_Y, rel_y); + } else { + input_report_key(idev, BTN_LEFT, buf[1] & 0x1); + input_report_key(idev, BTN_RIGHT, + buf[1] >> right_shift & 0x1); + } + input_sync(idev); + context->last_keycode = keycode; + return; + } + } + + /* + * at this point, mouse and touchscreen input has been handled + * handled, so if we're in lirc mode, bail out if no listening + * IR client + */ + if (!context->ir_isopen && lirc_mode) + return; + + /* Now for some special handling to convert pad input to arrow keys */ + if ((len == 5) && (buf[0] == 0x01) && (buf[4] == 0x00)) { + /* first, pad to 8 bytes so it conforms with everything else */ + buf[5] = buf[6] = buf[7] = 0; + len = 8; + timeout = 500; /* in msecs */ + /* (2*threshold) x (2*threshold) square */ + threshold = pad_thresh ? pad_thresh : 28; + rel_x = buf[2]; + rel_y = buf[3]; + + /* + * the imon directional pad functions more like a touchpad. + * Bytes 3 & 4 contain a position coordinate (x,y), with each + * component ranging from -14 to 14. Since this doesn't + * cooperate well with the way lirc works (it would appear to + * lirc as more than 100 different buttons) we need to map it + * to 4 discrete values. Also, when you get too close to + * diagonals, it has a tendancy to jump back and forth, so lets + * try to ignore when they get too close + */ + if (context->ir_protocol == IMON_IR_PROTOCOL_IMON) { + if ((buf[1] == 0) && ((rel_x != 0) || (rel_y != 0))) { + dir = stabilize((int)rel_x, (int)rel_y, + timeout, threshold); + if (!dir) + return; + buf[2] = dir & 0xFF; + buf[3] = (dir >> 8) & 0xFF; + memcpy(&remote_key, buf, sizeof(remote_key)); + k = imon_remote_key_lookup(remote_key); + keycode = imon_remote_key_table[k].keycode; + } + } else { + if (abs(rel_y) > abs(rel_x)) { + buf[2] = (rel_y > 0) ? 0x7F : 0x80; + buf[3] = 0; + keycode = (rel_y > 0) ? KEY_DOWN : KEY_UP; + } else { + buf[2] = 0; + buf[3] = (rel_x > 0) ? 0x7F : 0x80; + keycode = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; + } + } + norelease = 1; + + } else if ((len == 8) && (buf[0] & 0x40) && + !(buf[1] & 0x01 || buf[1] >> 2 & 0x01)) { + /* + * Handle on-board decoded pad events for e.g. older + * VFD/iMON-Pad (15c2:ffdc). The remote generates various codes + * from 0x68nnnnB7 to 0x6AnnnnB7, the left mouse button + * generates 0x688301b7 and the right one 0x688481b7. All other + * keys generate 0x2nnnnnnn. Length has been padded to 8 + * already, position coordinate is encoded in buf[1] and buf[2] + * with reversed endianess. Extract direction from buffer, + * rotate endianess, adjust sign and feed the values into + * stabilize(). The resulting codes will be 0x01008000, + * 0x01007F00, ..., so one can use the normal imon-pad config + * from the remotes dir. + */ + timeout = 10; /* in msecs */ + /* (2*threshold) x (2*threshold) square */ + threshold = pad_thresh ? pad_thresh : 15; + + /* buf[1] is x */ + rel_x = (buf[1] & 0x08) | (buf[1] & 0x10) >> 2 | + (buf[1] & 0x20) >> 4 | (buf[1] & 0x40) >> 6; + if (buf[0] & 0x02) + rel_x |= ~0x10+1; + /* buf[2] is y */ + rel_y = (buf[2] & 0x08) | (buf[2] & 0x10) >> 2 | + (buf[2] & 0x20) >> 4 | (buf[2] & 0x40) >> 6; + if (buf[0] & 0x01) + rel_y |= ~0x10+1; + + buf[0] = 0x01; + buf[1] = buf[4] = buf[5] = buf[6] = buf[7] = 0; + + if (context->ir_protocol == IMON_IR_PROTOCOL_IMON) { + dir = stabilize((int)rel_x, (int)rel_y, + timeout, threshold); + if (!dir) + return; + buf[2] = dir & 0xFF; + buf[3] = (dir >> 8) & 0xFF; + } else { + if (abs(rel_y) > abs(rel_x)) { + buf[2] = (rel_y > 0) ? 0x7F : 0x80; + buf[3] = 0; + keycode = (rel_y > 0) ? KEY_DOWN : KEY_UP; + } else { + buf[2] = 0; + buf[3] = (rel_x > 0) ? 0x7F : 0x80; + keycode = (rel_x > 0) ? KEY_RIGHT : KEY_LEFT; + } + } + norelease = 1; + + } else if (ts_input) { + /* + * this is touchscreen input, which we need to down-sample + * to a 64 button matrix at the moment... + */ + buf[0] = buf[0] >> 5; + buf[1] = 0x00; + buf[2] = buf[2] >> 5; + buf[3] = 0x00; + buf[4] = 0x00; + buf[5] = 0x00; + buf[6] = 0x14; + buf[7] = 0xff; + } + + if (!lirc_mode && context->ir_onboard_decode) { + int press_type = 0; + static int seen_first; + int msec; + struct timeval t; + static struct timeval prev_time = { 0, 0 }; + if (debug) { + printk(KERN_INFO "intf%d decoded packet: ", intf); + for (i = 0; i < len; ++i) + printk("%02x ", buf[i]); + printk("\n"); + } + + /* key release of 0x02XXXXXX key */ + if (k == -1 && buf[0] == 0x02 && buf[3] == 0x00) + keycode = context->last_keycode; + + /* initial mce button press */ + else if (ir_protocol == IMON_IR_PROTOCOL_MCE && buf[0] == 0x80 + && buf[2] != context->last_mce_byte) + goto input_out; + + /* subsequent mce button press, on which we'll act */ + else if (ir_protocol == IMON_IR_PROTOCOL_MCE && buf[0] == 0x80 + && seen_first) { + press_type = 1; + norelease = 1; + + /* incoherent or irrelevant data */ + } else if (k == -1) + return; + + /* key release of 0xXXXXXXb7 key */ + else if (buf[3] == 0xb7 && (buf[2] & 0x40) == 0x40) + press_type = 0; + + /* this is a button press */ + else + press_type = 1; + + /* KEY_MUTE repeats need to be suppressed */ + if (keycode == KEY_MUTE && context->last_keycode == KEY_MUTE) { + do_gettimeofday(&t); + msec = tv2int(&t, &prev_time); + prev_time = t; + if (msec < 500) + return; + } + + input_report_key(idev, keycode, press_type); + input_sync(idev); + + /* panel keys and some remote keys don't generate a release */ + if (panel_key || norelease) { + input_report_key(idev, keycode, 0); + input_sync(idev); + } + +input_out: + context->last_keycode = keycode; + if (ir_protocol == IMON_IR_PROTOCOL_MCE && buf[0] == 0x80) { + seen_first = ~seen_first & 0x1; + context->last_mce_byte = buf[2]; + } + return; + } + + if (len != 8) { + dev_warn(dev, "imon %s: invalid incoming packet " + "size (len = %d, intf%d)\n", __func__, len, intf); + return; + } + + /* iMON 2.4G associate frame */ + if (buf[0] == 0x00 && + buf[2] == 0xFF && /* REFID */ + buf[3] == 0xFF && + buf[4] == 0xFF && + buf[5] == 0xFF && /* iMON 2.4G */ + ((buf[6] == 0x4E && buf[7] == 0xDF) || /* LT */ + (buf[6] == 0x5E && buf[7] == 0xDF))) { /* DT */ + dev_warn(dev, "%s: remote associated refid=%02X\n", + __func__, buf[1]); + context->ir_isassociating = 0; + } + + chunk_num = buf[7]; + + if (chunk_num == 0xFF && !ts_input) + return; /* filler frame, no data here */ + + if (buf[0] == 0xFF && + buf[1] == 0xFF && + buf[2] == 0xFF && + buf[3] == 0xFF && + buf[4] == 0xFF && + buf[5] == 0xFF && /* iMON 2.4G */ + ((buf[6] == 0x4E && buf[7] == 0xAF) || /* LT */ + (buf[6] == 0x5E && buf[7] == 0xAF))) /* DT */ + return; /* filler frame, no data here */ + + if (debug) { + if (context->ir_onboard_decode) + printk(KERN_INFO "intf%d decoded packet: ", intf); + else + printk(KERN_INFO "raw packet: "); + for (i = 0; i < len; ++i) + printk("%02x ", buf[i]); + printk("\n"); + } + + if (context->ir_onboard_decode) { + /* The signals have been decoded onboard the iMON controller */ + lirc_buffer_write(context->driver->rbuf, buf); + wake_up(&context->driver->rbuf->wait_poll); + return; + } + + /* + * Translate received data to pulse and space lengths. + * Received data is active low, i.e. pulses are 0 and + * spaces are 1. + * + * My original algorithm was essentially similar to + * Changwoo Ryu's with the exception that he switched + * the incoming bits to active high and also fed an + * initial space to LIRC at the start of a new sequence + * if the previous bit was a pulse. + * + * I've decided to adopt his algorithm. + */ + + if (chunk_num == 1 && context->rx.initial_space) { + /* LIRC requires a leading space */ + context->rx.prev_bit = 0; + context->rx.count = 4; + submit_data(context); + context->rx.count = 0; + } + + for (octet = 0; octet < 5; ++octet) { + mask = 0x80; + for (bit = 0; bit < 8; ++bit) { + int curr_bit = !(buf[octet] & mask); + if (curr_bit != context->rx.prev_bit) { + if (context->rx.count) { + submit_data(context); + context->rx.count = 0; + } + context->rx.prev_bit = curr_bit; + } + ++context->rx.count; + mask >>= 1; + } + } + + if (chunk_num == 10) { + if (context->rx.count) { + submit_data(context); + context->rx.count = 0; + } + context->rx.initial_space = context->rx.prev_bit; + } +} + +/** + * report touchscreen input + */ +static void imon_touch_display_timeout(unsigned long data) +{ + struct imon_context *context = (struct imon_context *)data; + struct input_dev *touch; + + if (!context->display_type == IMON_DISPLAY_TYPE_VGA) + return; + + touch = context->touch; + input_report_abs(touch, ABS_X, context->touch_x); + input_report_abs(touch, ABS_Y, context->touch_y); + input_report_key(touch, BTN_TOUCH, 0x00); + input_sync(touch); + + return; +} + +/** + * Callback function for USB core API: receive data + */ +static void usb_rx_callback_intf0(struct urb *urb) +{ + struct imon_context *context; + unsigned char *buf; + int len; + int intfnum = 0; + + if (!urb) + return; + + context = (struct imon_context *)urb->context; + if (!context) + return; + + buf = urb->transfer_buffer; + len = urb->actual_length; + + switch (urb->status) { + case -ENOENT: /* usbcore unlink successful! */ + return; + + case 0: + imon_incoming_packet(context, urb, intfnum); + break; + + default: + dev_warn(context->driver->dev, "imon %s: status(%d): ignored\n", + __func__, urb->status); + break; + } + + usb_submit_urb(context->rx_urb_intf0, GFP_ATOMIC); + + return; +} + +static void usb_rx_callback_intf1(struct urb *urb) +{ + struct imon_context *context; + unsigned char *buf; + int len; + int intfnum = 1; + + if (!urb) + return; + + context = (struct imon_context *)urb->context; + if (!context) + return; + + buf = urb->transfer_buffer; + len = urb->actual_length; + + switch (urb->status) { + case -ENOENT: /* usbcore unlink successful! */ + return; + + case 0: + imon_incoming_packet(context, urb, intfnum); + break; + + default: + dev_warn(context->driver->dev, "imon %s: status(%d): ignored\n", + __func__, urb->status); + break; + } + + usb_submit_urb(context->rx_urb_intf1, GFP_ATOMIC); + + return; +} + +/** + * Callback function for USB core API: Probe + */ +static int imon_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *usbdev = NULL; + struct usb_host_interface *iface_desc = NULL; + struct usb_endpoint_descriptor *rx_endpoint = NULL; + struct usb_endpoint_descriptor *tx_endpoint = NULL; + struct urb *rx_urb = NULL; + struct urb *tx_urb = NULL; + struct lirc_driver *driver = NULL; + struct lirc_buffer *rbuf = NULL; + struct usb_interface *first_if; + struct device *dev = &interface->dev; + int ifnum; + int lirc_minor = 0; + int num_endpts; + int retval = 0; + int display_ep_found = 0; + int ir_ep_found = 0; + int alloc_status = 0; + int vfd_proto_6p = 0; + int ir_onboard_decode = 0; + int buf_chunk_size = BUF_CHUNK_SIZE; + int code_length; + int tx_control = 0; + struct imon_context *context = NULL; + struct imon_context *first_if_context = NULL; + int i, sysfs_err; + int configured_display_type = IMON_DISPLAY_TYPE_VFD; + u16 vendor, product; + const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x88 }; + + /* + * Try to auto-detect the type of display if the user hasn't set + * it by hand via the display_type modparam. Default is VFD. + */ + if (display_type == IMON_DISPLAY_TYPE_AUTO) { + if (usb_match_id(interface, lcd_device_list)) + configured_display_type = IMON_DISPLAY_TYPE_LCD; + else if (usb_match_id(interface, imon_touchscreen_list)) + configured_display_type = IMON_DISPLAY_TYPE_VGA; + else if (usb_match_id(interface, ir_only_list)) + configured_display_type = IMON_DISPLAY_TYPE_NONE; + else + configured_display_type = IMON_DISPLAY_TYPE_VFD; + } else { + configured_display_type = display_type; + dev_dbg(dev, "%s: overriding display type to %d via " + "modparam\n", __func__, display_type); + } + + /* + * If it's the LCD, as opposed to the VFD, we just need to replace + * the "write" file op. + */ + if (configured_display_type == IMON_DISPLAY_TYPE_LCD) + display_fops.write = &lcd_write; + + /* + * To get front panel buttons working properly for newer LCD devices, + * we really do need a larger buffer. + */ + if (usb_match_id(interface, large_buffer_list)) + buf_chunk_size = 2 * BUF_CHUNK_SIZE; + + code_length = buf_chunk_size * 8; + + usbdev = usb_get_dev(interface_to_usbdev(interface)); + iface_desc = interface->cur_altsetting; + num_endpts = iface_desc->desc.bNumEndpoints; + ifnum = iface_desc->desc.bInterfaceNumber; + vendor = le16_to_cpu(usbdev->descriptor.idVendor); + product = le16_to_cpu(usbdev->descriptor.idProduct); + + dev_dbg(dev, "%s: found iMON device (%04x:%04x, intf%d)\n", + __func__, vendor, product, ifnum); + + /* prevent races probing devices w/multiple interfaces */ + mutex_lock(&driver_lock); + + first_if = usb_ifnum_to_if(usbdev, 0); + first_if_context = (struct imon_context *)usb_get_intfdata(first_if); + + /* + * Scan the endpoint list and set: + * first input endpoint = IR endpoint + * first output endpoint = display endpoint + */ + for (i = 0; i < num_endpts && !(ir_ep_found && display_ep_found); ++i) { + struct usb_endpoint_descriptor *ep; + int ep_dir; + int ep_type; + ep = &iface_desc->endpoint[i].desc; + ep_dir = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; + ep_type = ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + + if (!ir_ep_found && + ep_dir == USB_DIR_IN && + ep_type == USB_ENDPOINT_XFER_INT) { + + rx_endpoint = ep; + ir_ep_found = 1; + dev_dbg(dev, "%s: found IR endpoint\n", __func__); + + } else if (!display_ep_found && + ep_dir == USB_DIR_OUT && + ep_type == USB_ENDPOINT_XFER_INT) { + tx_endpoint = ep; + display_ep_found = 1; + dev_dbg(dev, "%s: found display endpoint\n", __func__); + } + } + + /* + * If we didn't find a display endpoint, this is probably one of the + * newer iMON devices that use control urb instead of interrupt + */ + if (!display_ep_found) { + if (usb_match_id(interface, ctl_ep_device_list)) { + tx_control = 1; + display_ep_found = 1; + dev_dbg(dev, "%s: device uses control endpoint, not " + "interface OUT endpoint\n", __func__); + } + } + + /* + * Some iMON receivers have no display. Unfortunately, it seems + * that SoundGraph recycles device IDs between devices both with + * and without... :\ + */ + if (configured_display_type == IMON_DISPLAY_TYPE_NONE) { + display_ep_found = 0; + dev_dbg(dev, "%s: device has no display\n", __func__); + } + + /* + * iMON Touch devices have a VGA touchscreen, but no "display", as + * that refers to e.g. /dev/lcd0 (a character device LCD or VFD). + */ + if (configured_display_type == IMON_DISPLAY_TYPE_VGA) { + display_ep_found = 0; + dev_dbg(dev, "%s: iMON Touch device found\n", __func__); + } + + /* Input endpoint is mandatory */ + if (!ir_ep_found) { + err("%s: no valid input (IR) endpoint found.", __func__); + retval = -ENODEV; + goto exit; + } else { + /* Determine if the IR signals are decoded onboard */ + if (usb_match_id(interface, ir_onboard_decode_list)) + ir_onboard_decode = 1; + + dev_dbg(dev, "%s: ir_onboard_decode: %d\n", + __func__, ir_onboard_decode); + } + + /* Determine if display requires 6 packets */ + if (display_ep_found) { + if (usb_match_id(interface, vfd_proto_6p_list)) + vfd_proto_6p = 1; + + dev_dbg(dev, "%s: vfd_proto_6p: %d\n", + __func__, vfd_proto_6p); + } + + if (ifnum == 0) { + context = kzalloc(sizeof(struct imon_context), GFP_KERNEL); + if (!context) { + err("%s: kzalloc failed for context", __func__); + alloc_status = 1; + goto alloc_status_switch; + } + driver = kzalloc(sizeof(struct lirc_driver), GFP_KERNEL); + if (!driver) { + err("%s: kzalloc failed for lirc_driver", __func__); + alloc_status = 2; + goto alloc_status_switch; + } + rbuf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL); + if (!rbuf) { + err("%s: kmalloc failed for lirc_buffer", __func__); + alloc_status = 3; + goto alloc_status_switch; + } + if (lirc_buffer_init(rbuf, buf_chunk_size, BUF_SIZE)) { + err("%s: lirc_buffer_init failed", __func__); + alloc_status = 4; + goto alloc_status_switch; + } + rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!rx_urb) { + err("%s: usb_alloc_urb failed for IR urb", __func__); + alloc_status = 5; + goto alloc_status_switch; + } + tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!tx_urb) { + err("%s: usb_alloc_urb failed for display urb", + __func__); + alloc_status = 6; + goto alloc_status_switch; + } + + mutex_init(&context->lock); + context->vfd_proto_6p = vfd_proto_6p; + context->ir_onboard_decode = ir_onboard_decode; + + strcpy(driver->name, MOD_NAME); + driver->minor = -1; + driver->code_length = ir_onboard_decode ? + code_length : sizeof(int) * 8; + driver->sample_rate = 0; + driver->features = (ir_onboard_decode) ? + LIRC_CAN_REC_LIRCCODE : LIRC_CAN_REC_MODE2; + driver->data = context; + driver->rbuf = rbuf; + driver->set_use_inc = ir_open; + driver->set_use_dec = ir_close; + driver->dev = &interface->dev; + driver->owner = THIS_MODULE; + + mutex_lock(&context->lock); + + context->driver = driver; + /* start out in keyboard mode */ + context->pad_mouse = 0; + + init_timer(&context->timer); + context->timer.data = (unsigned long)context; + context->timer.function = imon_touch_display_timeout; + + lirc_minor = lirc_register_driver(driver); + if (lirc_minor < 0) { + err("%s: lirc_register_driver failed", __func__); + alloc_status = 7; + goto alloc_status_switch; + } else + dev_info(dev, "Registered iMON driver " + "(lirc minor: %d)\n", lirc_minor); + + /* Needed while unregistering! */ + driver->minor = lirc_minor; + + } else { + /* this is the secondary interface on the device */ + if (first_if_context->driver) { + rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!rx_urb) { + err("%s: usb_alloc_urb failed for IR urb", + __func__); + alloc_status = 5; + goto alloc_status_switch; + } + + context = first_if_context; + } + mutex_lock(&context->lock); + } + + if (ifnum == 0) { + context->usbdev_intf0 = usbdev; + context->dev_present_intf0 = 1; + context->rx_endpoint_intf0 = rx_endpoint; + context->rx_urb_intf0 = rx_urb; + + /* + * tx is used to send characters to lcd/vfd, associate RF + * remotes, set IR protocol, and maybe more... + */ + context->tx_endpoint = tx_endpoint; + context->tx_urb = tx_urb; + context->tx_control = tx_control; + + if (display_ep_found) + context->display_supported = 1; + + if (product == 0xffdc) + context->ffdc_dev = 1; + + context->display_type = configured_display_type; + + context->idev = input_allocate_device(); + input_set_drvdata(context->idev, context); + + snprintf(context->name_idev, sizeof(context->name_idev), + "iMON IR Remote (%04x:%04x)", vendor, product); + context->idev->name = context->name_idev; + + usb_make_path(usbdev, context->phys_idev, + sizeof(context->phys_idev)); + strlcat(context->phys_idev, "/input0", + sizeof(context->phys_idev)); + context->idev->phys = context->phys_idev; + + context->idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); + + context->idev->keybit[BIT_WORD(BTN_MOUSE)] = + BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); + context->idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) | + BIT_MASK(REL_WHEEL); + + /* register all the keys we support */ + for (i = 0; i < ARRAY_SIZE(imon_remote_key_table); i++) { + u16 kc = imon_remote_key_table[i].keycode; + __set_bit(kc, context->idev->keybit); + } + for (i = 0; i < ARRAY_SIZE(imon_panel_key_table); i++) { + u16 kc = imon_panel_key_table[i].keycode; + __set_bit(kc, context->idev->keybit); + } + for (i = 0; i < ARRAY_SIZE(imon_mce_key_table); i++) { + u16 kc = imon_mce_key_table[i].keycode; + __set_bit(kc, context->idev->keybit); + } + + usb_to_input_id(usbdev, &context->idev->id); + context->idev->dev.parent = &interface->dev; + retval = input_register_device(context->idev); + if (retval) + dev_info(dev, "%s: input device setup failed\n", + __func__); + + usb_fill_int_urb(context->rx_urb_intf0, context->usbdev_intf0, + usb_rcvintpipe(context->usbdev_intf0, + context->rx_endpoint_intf0->bEndpointAddress), + context->usb_rx_buf, sizeof(context->usb_rx_buf), + usb_rx_callback_intf0, context, + context->rx_endpoint_intf0->bInterval); + + retval = usb_submit_urb(context->rx_urb_intf0, GFP_KERNEL); + + if (retval) { + err("%s: usb_submit_urb failed for intf0 (%d)", + __func__, retval); + mutex_unlock(&context->lock); + goto exit; + } + + } else { + context->usbdev_intf1 = usbdev; + context->dev_present_intf1 = 1; + context->rx_endpoint_intf1 = rx_endpoint; + context->rx_urb_intf1 = rx_urb; + + if (context->display_type == IMON_DISPLAY_TYPE_VGA) { + context->touch = input_allocate_device(); + + snprintf(context->name_touch, + sizeof(context->name_touch), + "iMON USB Touchscreen (%04x:%04x)", + vendor, product); + context->touch->name = context->name_touch; + + usb_make_path(usbdev, context->phys_touch, + sizeof(context->phys_touch)); + strlcat(context->phys_touch, "/input1", + sizeof(context->phys_touch)); + context->touch->phys = context->phys_touch; + + context->touch->evbit[0] = + BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + context->touch->keybit[BIT_WORD(BTN_TOUCH)] = + BIT_MASK(BTN_TOUCH); + input_set_abs_params(context->touch, ABS_X, + 0x00, 0xfff, 0, 0); + input_set_abs_params(context->touch, ABS_Y, + 0x00, 0xfff, 0, 0); + + input_set_drvdata(context->touch, context); + + usb_to_input_id(usbdev, &context->touch->id); + context->touch->dev.parent = &interface->dev; + retval = input_register_device(context->touch); + if (retval) + dev_info(dev, "%s: touchscreen input device " + "setup failed\n", __func__); + } else + context->touch = NULL; + + usb_fill_int_urb(context->rx_urb_intf1, context->usbdev_intf1, + usb_rcvintpipe(context->usbdev_intf1, + context->rx_endpoint_intf1->bEndpointAddress), + context->usb_rx_buf, sizeof(context->usb_rx_buf), + usb_rx_callback_intf1, context, + context->rx_endpoint_intf1->bInterval); + + retval = usb_submit_urb(context->rx_urb_intf1, GFP_KERNEL); + + if (retval) { + err("%s: usb_submit_urb failed for intf1 (%d)", + __func__, retval); + mutex_unlock(&context->lock); + goto exit; + } + } + + usb_set_intfdata(interface, context); + + /* RF products *also* use 0xffdc... sigh... */ + if (context->ffdc_dev) { + sysfs_err = sysfs_create_group(&interface->dev.kobj, + &imon_rf_attribute_group); + if (sysfs_err) + err("%s: Could not create RF sysfs entries(%d)", + __func__, sysfs_err); + } + + if (context->display_supported && ifnum == 0) { + dev_dbg(dev, "%s: Registering iMON display with sysfs\n", + __func__); + + /* set up sysfs entry for built-in clock */ + sysfs_err = sysfs_create_group(&interface->dev.kobj, + &imon_display_attribute_group); + if (sysfs_err) + err("%s: Could not create display sysfs entries(%d)", + __func__, sysfs_err); + + if (usb_register_dev(interface, &imon_class)) { + /* Not a fatal error, so ignore */ + dev_info(dev, "%s: could not get a minor number for " + "display\n", __func__); + } + + /* Enable front-panel buttons and/or knobs */ + memcpy(context->usb_tx_buf, &fp_packet, sizeof(fp_packet)); + retval = send_packet(context); + /* Not fatal, but warn about it */ + if (retval) + dev_info(dev, "%s: failed to enable front-panel " + "buttons and/or knobs\n", __func__); + } + + /* set IR protocol/remote type */ + imon_set_ir_protocol(context); + + dev_info(dev, "iMON device (%04x:%04x, intf%d) on " + "usb<%d:%d> initialized\n", vendor, product, ifnum, + usbdev->bus->busnum, usbdev->devnum); + +alloc_status_switch: + mutex_unlock(&context->lock); + + switch (alloc_status) { + case 7: + usb_free_urb(tx_urb); + case 6: + usb_free_urb(rx_urb); + case 5: + if (rbuf) + lirc_buffer_free(rbuf); + case 4: + kfree(rbuf); + case 3: + kfree(driver); + case 2: + kfree(context); + context = NULL; + case 1: + retval = -ENOMEM; + break; + case 0: + retval = 0; + } + +exit: + mutex_unlock(&driver_lock); + + return retval; +} + +/** + * Callback function for USB core API: disconnect + */ +static void imon_disconnect(struct usb_interface *interface) +{ + struct imon_context *context; + int ifnum; + + /* prevent races with ir_open()/display_open() */ + mutex_lock(&driver_lock); + + context = usb_get_intfdata(interface); + ifnum = interface->cur_altsetting->desc.bInterfaceNumber; + + mutex_lock(&context->lock); + + /* + * sysfs_remove_group is safe to call even if sysfs_create_group + * hasn't been called + */ + sysfs_remove_group(&interface->dev.kobj, + &imon_display_attribute_group); + sysfs_remove_group(&interface->dev.kobj, + &imon_rf_attribute_group); + + usb_set_intfdata(interface, NULL); + + /* Abort ongoing write */ + if (atomic_read(&context->tx.busy)) { + usb_kill_urb(context->tx_urb); + complete_all(&context->tx.finished); + } + + if (ifnum == 0) { + context->dev_present_intf0 = 0; + usb_kill_urb(context->rx_urb_intf0); + input_unregister_device(context->idev); + if (context->display_supported) + usb_deregister_dev(interface, &imon_class); + } else { + context->dev_present_intf1 = 0; + usb_kill_urb(context->rx_urb_intf1); + if (context->display_type == IMON_DISPLAY_TYPE_VGA) + input_unregister_device(context->touch); + } + + if (!context->ir_isopen && !context->dev_present_intf0 && + !context->dev_present_intf1) { + del_timer_sync(&context->timer); + deregister_from_lirc(context); + mutex_unlock(&context->lock); + if (!context->display_isopen) + free_imon_context(context); + } else + mutex_unlock(&context->lock); + + mutex_unlock(&driver_lock); + + printk(KERN_INFO "%s: iMON device (intf%d) disconnected\n", + __func__, ifnum); +} + +static int imon_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct imon_context *context = usb_get_intfdata(intf); + int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; + + if (ifnum == 0) + usb_kill_urb(context->rx_urb_intf0); + else + usb_kill_urb(context->rx_urb_intf1); + + return 0; +} + +static int imon_resume(struct usb_interface *intf) +{ + int rc = 0; + struct imon_context *context = usb_get_intfdata(intf); + int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; + + if (ifnum == 0) { + usb_fill_int_urb(context->rx_urb_intf0, context->usbdev_intf0, + usb_rcvintpipe(context->usbdev_intf0, + context->rx_endpoint_intf0->bEndpointAddress), + context->usb_rx_buf, sizeof(context->usb_rx_buf), + usb_rx_callback_intf0, context, + context->rx_endpoint_intf0->bInterval); + + rc = usb_submit_urb(context->rx_urb_intf0, GFP_ATOMIC); + + } else { + usb_fill_int_urb(context->rx_urb_intf1, context->usbdev_intf1, + usb_rcvintpipe(context->usbdev_intf1, + context->rx_endpoint_intf1->bEndpointAddress), + context->usb_rx_buf, sizeof(context->usb_rx_buf), + usb_rx_callback_intf1, context, + context->rx_endpoint_intf1->bInterval); + + rc = usb_submit_urb(context->rx_urb_intf1, GFP_ATOMIC); + } + + return rc; +} + +static int __init imon_init(void) +{ + int rc; + + printk(KERN_INFO MOD_NAME ": " MOD_DESC ", v" MOD_VERSION "\n"); + + rc = usb_register(&imon_driver); + if (rc) { + err("%s: usb register failed(%d)", __func__, rc); + return -ENODEV; + } + + return 0; +} + +static void __exit imon_exit(void) +{ + usb_deregister(&imon_driver); + printk(KERN_INFO MOD_NAME ": module removed. Goodbye!\n"); +} + +module_init(imon_init); +module_exit(imon_exit); Index: b/drivers/input/lirc/lirc_imon.h =================================================================== --- /dev/null +++ b/drivers/input/lirc/lirc_imon.h @@ -0,0 +1,209 @@ +/* + * lirc_imon.h: LIRC/VFD/LCD driver for SoundGraph iMON IR/VFD/LCD + * including the iMON PAD model + * + * Copyright(C) 2004 Venky Raju(dev@venky.ws) + * Copyright(C) 2009 Jarod Wilson + * + * lirc_imon 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; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +static const struct { + u32 hw_code; + u16 keycode; +} imon_remote_key_table[] = { + /* keys sorted mostly by frequency of use to optimize lookups */ + { 0x2a8195b7, KEY_REWIND }, + { 0x298315b7, KEY_REWIND }, + { 0x2b8115b7, KEY_FASTFORWARD }, + { 0x2b8315b7, KEY_FASTFORWARD }, + { 0x2b9115b7, KEY_PREVIOUS }, + { 0x298195b7, KEY_NEXT }, + + { 0x2a8115b7, KEY_PLAY }, + { 0x2a8315b7, KEY_PLAY }, + { 0x2a9115b7, KEY_PAUSE }, + { 0x2b9715b7, KEY_STOP }, + { 0x298115b7, KEY_RECORD }, + + { 0x01008000, KEY_UP }, + { 0x01007f00, KEY_DOWN }, + { 0x01000080, KEY_LEFT }, + { 0x0100007f, KEY_RIGHT }, + + { 0x2aa515b7, KEY_UP }, + { 0x289515b7, KEY_DOWN }, + { 0x29a515b7, KEY_LEFT }, + { 0x2ba515b7, KEY_RIGHT }, + + { 0x0200002c, KEY_SPACE }, /* Select/Space */ + { 0x02000028, KEY_ENTER }, + { 0x288195b7, KEY_EXIT }, + { 0x02000029, KEY_ESC }, + { 0x0200002a, KEY_BACKSPACE }, + + { 0x2b9595b7, KEY_MUTE }, + { 0x28a395b7, KEY_VOLUMEUP }, + { 0x28a595b7, KEY_VOLUMEDOWN }, + { 0x289395b7, KEY_CHANNELUP }, + { 0x288795b7, KEY_CHANNELDOWN }, + + { 0x0200001e, KEY_NUMERIC_1 }, + { 0x0200001f, KEY_NUMERIC_2 }, + { 0x02000020, KEY_NUMERIC_3 }, + { 0x02000021, KEY_NUMERIC_4 }, + { 0x02000022, KEY_NUMERIC_5 }, + { 0x02000023, KEY_NUMERIC_6 }, + { 0x02000024, KEY_NUMERIC_7 }, + { 0x02000025, KEY_NUMERIC_8 }, + { 0x02000026, KEY_NUMERIC_9 }, + { 0x02000027, KEY_NUMERIC_0 }, + + { 0x02200025, KEY_NUMERIC_STAR }, + { 0x02200020, KEY_NUMERIC_POUND }, + + { 0x2b8515b7, KEY_VIDEO }, + { 0x299195b7, KEY_AUDIO }, + { 0x2ba115b7, KEY_CAMERA }, + { 0x28a515b7, KEY_TV }, + { 0x29a395b7, KEY_DVD }, + { 0x29a295b7, KEY_DVD }, + + /* the Menu key between DVD and Subtitle on the RM-200... */ + { 0x2ba385b7, KEY_MENU }, + { 0x2ba395b7, KEY_MENU }, + + { 0x288515b7, KEY_BOOKMARKS }, + { 0x2ab715b7, KEY_MEDIA }, /* Thumbnail */ + { 0x298595b7, KEY_SUBTITLE }, + { 0x2b8595b7, KEY_LANGUAGE }, + + { 0x29a595b7, KEY_ZOOM }, + { 0x2aa395b7, KEY_SCREEN }, /* FullScreen */ + + { 0x299115b7, KEY_KEYBOARD }, + { 0x299135b7, KEY_KEYBOARD }, + + { 0x01010000, BTN_LEFT }, + { 0x01020000, BTN_RIGHT }, + { 0x01010080, BTN_LEFT }, + { 0x01020080, BTN_RIGHT }, + + { 0x2a9395b7, KEY_CYCLEWINDOWS }, /* TaskSwitcher */ + { 0x2b8395b7, KEY_TIME }, /* Timer */ + + { 0x289115b7, KEY_POWER }, + { 0x29b195b7, KEY_EJECTCD }, /* the one next to play */ + { 0x299395b7, KEY_EJECTCLOSECD }, /* eject (above TaskSwitcher) */ + + { 0x02800000, KEY_MENU }, /* Left Menu */ + { 0x02000065, KEY_COMPOSE }, /* RightMenu */ + { 0x2ab195b7, KEY_PROG1 }, /* Go */ + { 0x29b715b7, KEY_DASHBOARD }, /* AppLauncher */ +}; + +static const struct { + u32 hw_code; + u16 keycode; +} imon_mce_key_table[] = { + /* keys sorted mostly by frequency of use to optimize lookups */ + { 0x800f8415, KEY_REWIND }, + { 0x800f8414, KEY_FASTFORWARD }, + { 0x800f841b, KEY_PREVIOUS }, + { 0x800f841a, KEY_NEXT }, + + { 0x800f8416, KEY_PLAY }, + { 0x800f8418, KEY_PAUSE }, + { 0x800f8418, KEY_PAUSE }, + { 0x800f8419, KEY_STOP }, + { 0x800f8417, KEY_RECORD }, + + { 0x02000052, KEY_UP }, + { 0x02000051, KEY_DOWN }, + { 0x02000050, KEY_LEFT }, + { 0x0200004f, KEY_RIGHT }, + + { 0x02000028, KEY_ENTER }, +/* the OK and Enter buttons decode to the same value + { 0x02000028, KEY_OK }, */ + { 0x0200002a, KEY_EXIT }, + { 0x02000029, KEY_DELETE }, + + { 0x800f840e, KEY_MUTE }, + { 0x800f8410, KEY_VOLUMEUP }, + { 0x800f8411, KEY_VOLUMEDOWN }, + { 0x800f8412, KEY_CHANNELUP }, + { 0x800f8413, KEY_CHANNELDOWN }, + + { 0x0200001e, KEY_NUMERIC_1 }, + { 0x0200001f, KEY_NUMERIC_2 }, + { 0x02000020, KEY_NUMERIC_3 }, + { 0x02000021, KEY_NUMERIC_4 }, + { 0x02000022, KEY_NUMERIC_5 }, + { 0x02000023, KEY_NUMERIC_6 }, + { 0x02000024, KEY_NUMERIC_7 }, + { 0x02000025, KEY_NUMERIC_8 }, + { 0x02000026, KEY_NUMERIC_9 }, + { 0x02000027, KEY_NUMERIC_0 }, + + { 0x02200025, KEY_NUMERIC_STAR }, + { 0x02200020, KEY_NUMERIC_POUND }, + + { 0x800f8446, KEY_TV }, + { 0x800f8447, KEY_AUDIO }, + { 0x800f8448, KEY_PVR }, /* RecordedTV */ + { 0x800f8449, KEY_CAMERA }, + { 0x800f844a, KEY_VIDEO }, + { 0x800f8424, KEY_DVD }, + { 0x800f8425, KEY_TUNER }, /* LiveTV */ + + { 0x800f845b, KEY_RED }, + { 0x800f845c, KEY_GREEN }, + { 0x800f845d, KEY_YELLOW }, + { 0x800f845e, KEY_BLUE }, + + { 0x800f840f, KEY_INFO }, + { 0x800f8426, KEY_EPG }, /* Guide */ + { 0x800f845a, KEY_SUBTITLE }, /* Caption */ + + { 0x800f840c, KEY_POWER }, + { 0x800f840d, KEY_PROG1 }, /* Windows MCE button */ + +}; + +static const struct { + u64 hw_code; + u16 keycode; +} imon_panel_key_table[] = { + { 0x000000000f000fee, KEY_PROG1 }, /* Go */ + { 0x000000001f000fee, KEY_AUDIO }, + { 0x0000000020000fee, KEY_VIDEO }, + { 0x0000000021000fee, KEY_CAMERA }, + { 0x0000000027000fee, KEY_DVD }, +/* the TV key on my panel is broken, doesn't work under any OS + { 0x0000000000000fee, KEY_TV }, */ + { 0x0000000005000fee, KEY_PREVIOUS }, + { 0x0000000007000fee, KEY_REWIND }, + { 0x0000000004000fee, KEY_STOP }, + { 0x000000003c000fee, KEY_PLAYPAUSE }, + { 0x0000000008000fee, KEY_FASTFORWARD }, + { 0x0000000006000fee, KEY_NEXT }, + { 0x0000000100000fee, KEY_RIGHT }, + { 0x0000010000000fee, KEY_LEFT }, + { 0x000000003d000fee, KEY_SELECT }, + { 0x0001000000000fee, KEY_VOLUMEUP }, + { 0x0100000000000fee, KEY_VOLUMEDOWN }, + { 0x0000000001000fee, KEY_MUTE }, +};