ChangeSet 1.1608.24.20, 2004/02/27 12:52:43-08:00, thoffman@arnor.net [PATCH] USB: add driver for ATI USB/RF remotes I've taken the old GATOS version of the ati_remote driver and done some cleanup/rework of it while porting to 2.6 kernels. drivers/usb/input/Kconfig | 14 drivers/usb/input/Makefile | 1 drivers/usb/input/ati_remote.c | 834 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 849 insertions(+) diff -Nru a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig --- a/drivers/usb/input/Kconfig Tue Mar 16 15:05:47 2004 +++ b/drivers/usb/input/Kconfig Tue Mar 16 15:05:47 2004 @@ -192,3 +192,17 @@ To compile this driver as a module, choose M here: the module will be called xpad. + +config USB_ATI_REMOTE + tristate "ATI USB RF remote control" + depends on USB && INPUT + ---help--- + Say Y here if you want to use one of ATI's USB remote controls. + These are RF remotes with USB receivers. They come with many of ATI's + All-In-Wonder video cards. This driver provides mouse pointer, left + and right mouse buttons, and maps all the other remote buttons to + keypress events. + + To compile this driver as a module, choose M here: the module will be + called ati_remote. + diff -Nru a/drivers/usb/input/Makefile b/drivers/usb/input/Makefile --- a/drivers/usb/input/Makefile Tue Mar 16 15:05:47 2004 +++ b/drivers/usb/input/Makefile Tue Mar 16 15:05:47 2004 @@ -34,3 +34,4 @@ obj-$(CONFIG_USB_KBTAB) += kbtab.o obj-$(CONFIG_USB_POWERMATE) += powermate.o obj-$(CONFIG_USB_XPAD) += xpad.o +obj-$(CONFIG_USB_ATI_REMOTE) += ati_remote.o diff -Nru a/drivers/usb/input/ati_remote.c b/drivers/usb/input/ati_remote.c --- /dev/null Wed Dec 31 16:00:00 1969 +++ b/drivers/usb/input/ati_remote.c Tue Mar 16 15:05:47 2004 @@ -0,0 +1,834 @@ +/* + * USB ATI Remote support + * + * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman + * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev + * + * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including + * porting to the 2.6 kernel interfaces, along with other modification + * to better match the style of the existing usb/input drivers. However, the + * protocol and hardware handling is essentially unchanged from 2.1.1. + * + * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by + * Vojtech Pavlik. + * + * Changes: + * + * Feb 2004: Torrey Hoffman + * Version 2.2.0 + * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * + * Hardware & software notes + * + * These remote controls are distributed by ATI as part of their + * "All-In-Wonder" video card packages. The receiver self-identifies as a + * "USB Receiver" with manufacturer "X10 Wireless Technology Inc". + * + * It is possible to use multiple receivers and remotes on multiple computers + * simultaneously by configuring them to use specific channels. + * + * The RF protocol used by the remote supports 16 distinct channels, 1 to 16. + * Actually, it may even support more, at least in some revisions of the + * hardware. + * + * Each remote can be configured to transmit on one channel as follows: + * - Press and hold the "hand icon" button. + * - When the red LED starts to blink, let go of the "hand icon" button. + * - When it stops blinking, input the channel code as two digits, from 01 + * to 16, and press the hand icon again. + * + * The timing can be a little tricky. Try loading the module with debug=1 + * to have the kernel print out messages about the remote control number + * and mask. Note: debugging prints remote numbers as zero-based hexadecimal. + * + * The driver has a "channel_mask" parameter. This bitmask specifies which + * channels will be ignored by the module. To mask out channels, just add + * all the 2^channel_number values together. + * + * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote + * ignore signals coming from remote controls transmitting on channel 4, but + * accept all other channels. + * + * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be + * ignored. + * + * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this + * parameter are unused. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Module and Version Information, Module Parameters + */ + +#define ATI_REMOTE_VENDOR_ID 0x0bc7 +#define ATI_REMOTE_PRODUCT_ID 0x004 + +#define DRIVER_VERSION "2.2.0" +#define DRIVER_AUTHOR "Torrey Hoffman " +#define DRIVER_DESC "USB driver for ATI/X10 RF Remote Control" + +#define NAME_BUFSIZE 80 /* size of product name, path buffers */ +#define DATA_BUFSIZE 63 /* size of URB data buffers */ +#define ATI_INPUTNUM 1 /* Which input device to register as */ + +#ifdef CONFIG_USB_DEBUG + static int debug = 1; +#else + static int debug; +#endif +module_param(debug, int, 444); +MODULE_PARM_DESC(debug, "Enable / disable debug messages"); + +unsigned long channel_mask = 0; +module_param(channel_mask, ulong, 444); +MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore"); + +#undef dbg +#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg); } while (0) + +static struct usb_device_id ati_remote_table[] = { + { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) }, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, ati_remote_table); + +/* Get hi and low bytes of a 16-bits int */ +#define HI(a) ((unsigned char)((a) >> 8)) +#define LO(a) ((unsigned char)((a) & 0xff)) + +#define SEND_FLAG_IN_PROGRESS 1 +#define SEND_FLAG_COMPLETE 2 + +/* Device initialization strings */ +static char init1[] = { 0x01, 0x00, 0x20, 0x14 }; +static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 }; + +struct ati_remote { + struct input_dev idev; + struct usb_device *udev; + struct usb_interface *interface; + + struct urb *irq_urb; + struct urb *out_urb; + struct usb_endpoint_descriptor *endpoint_in; + struct usb_endpoint_descriptor *endpoint_out; + unsigned char *inbuf; + unsigned char *outbuf; + dma_addr_t inbuf_dma; + dma_addr_t outbuf_dma; + + int open; /* open counter */ + int present; /* device plugged in? */ + + unsigned char old_data[2]; /* Detect duplicate events */ + unsigned long old_jiffies; + unsigned long acc_jiffies; /* handle acceleration */ + + char name[NAME_BUFSIZE]; + char phys[NAME_BUFSIZE]; + + wait_queue_head_t wait; + int send_flags; +}; + +/* "Kinds" of messages sent from the hardware to the driver. */ +#define KIND_END 0 +#define KIND_LITERAL 1 /* Simply pass to input system */ +#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */ +#define KIND_LU 3 /* Directional keypad diagonals - left up, */ +#define KIND_RU 4 /* right up, */ +#define KIND_LD 5 /* left down, */ +#define KIND_RD 6 /* right down */ +#define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/ + +/* Translation table from hardware messages to input events. */ +static struct +{ + short kind; + unsigned char data1, data2; + int type; + unsigned int code; + int value; +} ati_remote_tbl[] = +{ + /* Directional control pad axes */ + {KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */ + {KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */ + {KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */ + {KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */ + /* Directional control pad diagonals */ + {KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */ + {KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */ + {KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */ + {KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */ + + /* "Mouse button" buttons */ + {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ + {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ + {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ + {KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */ + + /* Artificial "doubleclick" events are generated by the hardware. + * They are mapped to the "side" and "extra" mouse buttons here. */ + {KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ + {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ + + /* keyboard. */ + {KIND_FILTERED, 0xd2, 0x0d, EV_KEY, KEY_1, 1}, + {KIND_FILTERED, 0xd3, 0x0e, EV_KEY, KEY_2, 1}, + {KIND_FILTERED, 0xd4, 0x0f, EV_KEY, KEY_3, 1}, + {KIND_FILTERED, 0xd5, 0x10, EV_KEY, KEY_4, 1}, + {KIND_FILTERED, 0xd6, 0x11, EV_KEY, KEY_5, 1}, + {KIND_FILTERED, 0xd7, 0x12, EV_KEY, KEY_6, 1}, + {KIND_FILTERED, 0xd8, 0x13, EV_KEY, KEY_7, 1}, + {KIND_FILTERED, 0xd9, 0x14, EV_KEY, KEY_8, 1}, + {KIND_FILTERED, 0xda, 0x15, EV_KEY, KEY_9, 1}, + {KIND_FILTERED, 0xdc, 0x17, EV_KEY, KEY_0, 1}, + {KIND_FILTERED, 0xc5, 0x00, EV_KEY, KEY_A, 1}, + {KIND_FILTERED, 0xc6, 0x01, EV_KEY, KEY_B, 1}, + {KIND_FILTERED, 0xde, 0x19, EV_KEY, KEY_C, 1}, + {KIND_FILTERED, 0xe0, 0x1b, EV_KEY, KEY_D, 1}, + {KIND_FILTERED, 0xe6, 0x21, EV_KEY, KEY_E, 1}, + {KIND_FILTERED, 0xe8, 0x23, EV_KEY, KEY_F, 1}, + + /* "special" keys */ + {KIND_FILTERED, 0xdd, 0x18, EV_KEY, KEY_KPENTER, 1}, /* "check" */ + {KIND_FILTERED, 0xdb, 0x16, EV_KEY, KEY_MENU, 1}, /* "menu" */ + {KIND_FILTERED, 0xc7, 0x02, EV_KEY, KEY_POWER, 1}, /* Power */ + {KIND_FILTERED, 0xc8, 0x03, EV_KEY, KEY_PROG1, 1}, /* TV */ + {KIND_FILTERED, 0xc9, 0x04, EV_KEY, KEY_PROG2, 1}, /* DVD */ + {KIND_FILTERED, 0xca, 0x05, EV_KEY, KEY_WWW, 1}, /* WEB */ + {KIND_FILTERED, 0xcb, 0x06, EV_KEY, KEY_BOOKMARKS, 1}, /* "book" */ + {KIND_FILTERED, 0xcc, 0x07, EV_KEY, KEY_EDIT, 1}, /* "hand" */ + {KIND_FILTERED, 0xe1, 0x1c, EV_KEY, KEY_COFFEE, 1}, /* "timer" */ + {KIND_FILTERED, 0xe5, 0x20, EV_KEY, KEY_FRONT, 1}, /* "max" */ + {KIND_FILTERED, 0xe2, 0x1d, EV_KEY, KEY_LEFT, 1}, /* left */ + {KIND_FILTERED, 0xe4, 0x1f, EV_KEY, KEY_RIGHT, 1}, /* right */ + {KIND_FILTERED, 0xe7, 0x22, EV_KEY, KEY_DOWN, 1}, /* down */ + {KIND_FILTERED, 0xdf, 0x1a, EV_KEY, KEY_UP, 1}, /* up */ + {KIND_FILTERED, 0xe3, 0x1e, EV_KEY, KEY_ENTER, 1}, /* "OK" */ + {KIND_FILTERED, 0xce, 0x09, EV_KEY, KEY_VOLUMEDOWN, 1}, /* VOL + */ + {KIND_FILTERED, 0xcd, 0x08, EV_KEY, KEY_VOLUMEUP, 1}, /* VOL - */ + {KIND_FILTERED, 0xcf, 0x0a, EV_KEY, KEY_MUTE, 1}, /* MUTE */ + {KIND_FILTERED, 0xd1, 0x0c, EV_KEY, KEY_CHANNELUP, 1}, /* CH + */ + {KIND_FILTERED, 0xd0, 0x0b, EV_KEY, KEY_CHANNELDOWN, 1},/* CH - */ + {KIND_FILTERED, 0xec, 0x27, EV_KEY, KEY_RECORD, 1}, /* ( o) red */ + {KIND_FILTERED, 0xea, 0x25, EV_KEY, KEY_PLAYCD, 1}, /* ( >) */ + {KIND_FILTERED, 0xe9, 0x24, EV_KEY, KEY_REWIND, 1}, /* (<<) */ + {KIND_FILTERED, 0xeb, 0x26, EV_KEY, KEY_FORWARD, 1}, /* (>>) */ + {KIND_FILTERED, 0xed, 0x28, EV_KEY, KEY_STOP, 1}, /* ([]) */ + {KIND_FILTERED, 0xee, 0x29, EV_KEY, KEY_PAUSE, 1}, /* ('') */ + + {KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0} +}; + +/* Local function prototypes */ +static void ati_remote_dump (unsigned char *data, unsigned int actual_length); +static void ati_remote_delete (struct ati_remote *dev); +static int ati_remote_open (struct input_dev *inputdev); +static void ati_remote_close (struct input_dev *inputdev); +static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data); +static void ati_remote_irq_out (struct urb *urb, struct pt_regs *regs); +static void ati_remote_irq_in (struct urb *urb, struct pt_regs *regs); +static void ati_remote_input_report (struct urb *urb, struct pt_regs *regs); +static int ati_remote_initialize (struct ati_remote *ati_remote); +static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id); +static void ati_remote_disconnect (struct usb_interface *interface); + +/* usb specific object to register with the usb subsystem */ +static struct usb_driver ati_remote_driver = { + .owner = THIS_MODULE, + .name = "ati_remote", + .probe = ati_remote_probe, + .disconnect = ati_remote_disconnect, + .id_table = ati_remote_table, +}; + +/* + * ati_remote_dump_input + */ +static void ati_remote_dump(unsigned char *data, unsigned int len) +{ + if ((len == 1) && (data[0] != (unsigned char)0xff) && (data[0] != 0x00)) + warn("Weird byte 0x%02x", data[0]); + else if (len == 4) + warn("Weird key %02x %02x %02x %02x", + data[0], data[1], data[2], data[3]); + else + warn("Weird data, len=%d %02x %02x %02x %02x %02x %02x ...", + len, data[0], data[1], data[2], data[3], data[4], data[5]); +} + +/* + * ati_remote_open + */ +static int ati_remote_open(struct input_dev *inputdev) +{ + struct ati_remote *ati_remote = inputdev->private; + + if (ati_remote->open++) + return 0; + + /* On first open, submit the read urb which was set up previously. */ + ati_remote->irq_urb->dev = ati_remote->udev; + if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) { + err(" %s: usb_submit_urb failed!", __FUNCTION__); + ati_remote->open--; + return -EIO; + } + + return 0; +} + +/* + * ati_remote_close + */ +static void ati_remote_close(struct input_dev *inputdev) +{ + struct ati_remote *ati_remote = inputdev->private; + + if (ati_remote == NULL) { + dbg("%s - object is NULL !", __FUNCTION__); + return; + } + + if (ati_remote->open <= 0) + dbg("%s - ati_remote not open.", __FUNCTION__); + else + --ati_remote->open; + + /* If still present, disconnect will call delete. */ + if (!ati_remote->present && !ati_remote->open) + ati_remote_delete(ati_remote); +} + +/* + * ati_remote_irq_out + */ +static void ati_remote_irq_out(struct urb *urb, struct pt_regs *regs) +{ + struct ati_remote *ati_remote = urb->context; + + if (urb->status) { + warn("output urb completion status %d received", urb->status); + return; + } + + ati_remote->send_flags |= SEND_FLAG_COMPLETE; + wmb(); + if (waitqueue_active(&ati_remote->wait)) + wake_up(&ati_remote->wait); +} + +/* + * ati_remote_sendpacket + * + * Used to send device initialization strings + */ +static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data) +{ + DECLARE_WAITQUEUE(wait, current); + int timeout = HZ; /* 1 second */ + int retval = 0; + + /* Set up out_urb */ + memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd)); + ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd); + + ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1; + ati_remote->out_urb->dev = ati_remote->udev; + ati_remote->send_flags = SEND_FLAG_IN_PROGRESS; + + set_current_state(TASK_INTERRUPTIBLE); + add_wait_queue(&ati_remote->wait, &wait); + + retval = usb_submit_urb(ati_remote->out_urb, GFP_KERNEL); + if (retval) { + set_current_state(TASK_RUNNING); + remove_wait_queue(&ati_remote->wait, &wait); + dbg("sendpacket: usb_submit_urb failed: %d", retval); + return retval; + } + + while (timeout && (ati_remote->out_urb->status == -EINPROGRESS) + && !(ati_remote->send_flags & SEND_FLAG_COMPLETE)) { + timeout = schedule_timeout(timeout); + rmb(); + } + + set_current_state(TASK_RUNNING); + remove_wait_queue(&ati_remote->wait, &wait); + usb_unlink_urb(ati_remote->out_urb); + + return retval; +} + +/* + * ati_remote_event_lookup + */ +static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2) +{ + int i; + + for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { + /* + * Decide if the table entry matches the remote input. + */ + if ((((ati_remote_tbl[i].data1 & 0x0f) == (d1 & 0x0f))) && + ((((ati_remote_tbl[i].data1 >> 4) - + (d1 >> 4) + rem) & 0x0f) == 0x0f) && + (ati_remote_tbl[i].data2 == d2)) + return i; + + } + return -1; +} + +/* + * ati_remote_report_input + */ +static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs) +{ + struct ati_remote *ati_remote = urb->context; + unsigned char *data= ati_remote->inbuf; + struct input_dev *dev = &ati_remote->idev; + int index, acc; + int remote_num; + + /* Deal with strange looking inputs */ + if ( (urb->actual_length != 4) || (data[0] != 0x14) || + ((data[3] & 0x0f) != 0x00) ) { + ati_remote_dump(data, urb->actual_length); + return; + } + + /* Mask unwanted remote channels. */ + /* note: remote_num is 0-based, channel 1 selected on remote == 0 here */ + remote_num = (data[3] >> 4) & 0x0f; + if (channel_mask & (1 << (remote_num + 1))) { + dbg("Remote 0x02%x masked. mask = 0x%02lx", + remote_num, channel_mask); + return; + } + dbg("Remote channel 0x%02x: %02x%02x", remote_num, data[1], data[2]); + + /* Look up event code index in translation table */ + index = ati_remote_event_lookup(remote_num, data[1], data[2]); + if (index < 0) { + warn("Unknown key=%02x%02x", data[1], data[2]); + return; + } + + if (ati_remote_tbl[index].kind == KIND_LITERAL) { + input_regs(dev, regs); + input_event(dev, ati_remote_tbl[index].type, + ati_remote_tbl[index].code, + ati_remote_tbl[index].value); + input_sync(dev); + + ati_remote->old_jiffies = jiffies; + return; + } + + if (ati_remote_tbl[index].kind == KIND_FILTERED) { + /* Filter duplicate events which happen "too close" together, + * considered here to be anything less than a quarter second */ + if ((ati_remote->old_data[0] == data[1]) && + (ati_remote->old_data[1] == data[2]) && + ((ati_remote->old_jiffies + (HZ >> 2)) > jiffies)) { + ati_remote->old_jiffies = jiffies; + return; + } + + input_regs(dev, regs); + input_event(dev, ati_remote_tbl[index].type, + ati_remote_tbl[index].code, 1); + input_event(dev, ati_remote_tbl[index].type, + ati_remote_tbl[index].code, 0); + input_sync(dev); + + ati_remote->old_data[0] = data[1]; + ati_remote->old_data[1] = data[2]; + ati_remote->old_jiffies = jiffies; + return; + } + + /* + * Other event kinds are from the directional control pad, and have an + * acceleration factor applied to them. Without added acceleration, the + * control pad is pretty unusable. + * + * If elapsed time since last event is > 1/4 second, user "stopped", + * so reset acceleration. Otherwise, user is probably holding the control + * pad down, so we increase acceleration, ramping up over two seconds to + * a maximum speed. + */ + if ((jiffies - ati_remote->old_jiffies) > (HZ >> 2)) { + acc = 1; + ati_remote->acc_jiffies = jiffies; + } + else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 3)) acc = 1; + else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 2)) acc = 2; + else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 1)) acc = 3; + else if ((jiffies - ati_remote->acc_jiffies) < HZ ) acc = 4; + else if ((jiffies - ati_remote->acc_jiffies) < HZ+(HZ>>1)) acc = 6; + else if ((jiffies - ati_remote->acc_jiffies) < (HZ << 1)) acc = 10; + else acc = 16; + + input_regs(dev, regs); + switch (ati_remote_tbl[index].kind) { + case KIND_ACCEL: + input_event(dev, ati_remote_tbl[index].type, + ati_remote_tbl[index].code, + ati_remote_tbl[index].value * acc); + break; + case KIND_LU: + input_report_rel(dev, REL_X, -acc); + input_report_rel(dev, REL_Y, -acc); + break; + case KIND_RU: + input_report_rel(dev, REL_X, acc); + input_report_rel(dev, REL_Y, -acc); + break; + case KIND_LD: + input_report_rel(dev, REL_X, -acc); + input_report_rel(dev, REL_Y, acc); + break; + case KIND_RD: + input_report_rel(dev, REL_X, acc); + input_report_rel(dev, REL_Y, acc); + break; + default: + dbg("ati_remote kind=%d", ati_remote_tbl[index].kind); + } + input_sync(dev); + + ati_remote->old_jiffies = jiffies; + ati_remote->old_data[0] = data[1]; + ati_remote->old_data[1] = data[2]; +} + +/* + * ati_remote_irq_in + */ +static void ati_remote_irq_in(struct urb *urb, struct pt_regs *regs) +{ + struct ati_remote *ati_remote = urb->context; + int retval; + + switch (urb->status) + { + case 0: /* success */ + ati_remote_input_report(urb, regs); + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + dbg("%s: urb error status (unlink?)", __FUNCTION__); + return; + default: /* error */ + dbg("%s: Nonzero urb status %d", __FUNCTION__, urb->status); + } + + retval = usb_submit_urb(urb, SLAB_ATOMIC); + if (retval) + err("%s: can't resubmit urb, %s-%s/input%d, status %d", + __FUNCTION__, ati_remote->udev->bus->bus_name, + ati_remote->udev->devpath, ATI_INPUTNUM, retval); +} + +/* + * ati_remote_delete + */ +static void ati_remote_delete(struct ati_remote *ati_remote) +{ + if (!ati_remote) return; + + if (ati_remote->irq_urb) + usb_unlink_urb(ati_remote->irq_urb); + + if (ati_remote->out_urb) + usb_unlink_urb(ati_remote->out_urb); + + if (ati_remote->irq_urb) + usb_free_urb(ati_remote->irq_urb); + + if (ati_remote->out_urb) + usb_free_urb(ati_remote->out_urb); + + if (ati_remote->inbuf) + usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, + ati_remote->inbuf, ati_remote->inbuf_dma); + + if (ati_remote->outbuf) + usb_buffer_free(ati_remote->udev, DATA_BUFSIZE, + ati_remote->inbuf, ati_remote->outbuf_dma); + + kfree(ati_remote); +} + +static void ati_remote_input_init(struct ati_remote *ati_remote) +{ + struct input_dev *idev = &(ati_remote->idev); + int i; + + idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL); + idev->keybit[LONG(BTN_MOUSE)] = ( BIT(BTN_LEFT) | BIT(BTN_RIGHT) | + BIT(BTN_SIDE) | BIT(BTN_EXTRA) ); + idev->relbit[0] = BIT(REL_X) | BIT(REL_Y); + for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) + if (ati_remote_tbl[i].type == EV_KEY) + set_bit(ati_remote_tbl[i].code, idev->keybit); + + idev->private = ati_remote; + idev->open = ati_remote_open; + idev->close = ati_remote_close; + + idev->name = ati_remote->name; + idev->phys = ati_remote->phys; + + idev->id.bustype = BUS_USB; + idev->id.vendor = ati_remote->udev->descriptor.idVendor; + idev->id.product = ati_remote->udev->descriptor.idProduct; + idev->id.version = ati_remote->udev->descriptor.bcdDevice; +} + +static int ati_remote_initialize(struct ati_remote *ati_remote) +{ + struct usb_device *udev = ati_remote->udev; + int pipe, maxp; + + init_waitqueue_head(&ati_remote->wait); + + /* Set up irq_urb */ + pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); + maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; + + usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, + maxp, ati_remote_irq_in, ati_remote, + ati_remote->endpoint_in->bInterval); + ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; + ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + /* Set up out_urb */ + pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); + maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; + + usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, + maxp, ati_remote_irq_out, ati_remote, + ati_remote->endpoint_out->bInterval); + ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; + ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + /* send initialization strings */ + if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || + (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { + err("Initializing ati_remote hardware failed."); + return 1; + } + + return 0; +} + +/* + * ati_remote_probe + */ +static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct ati_remote *ati_remote = NULL; + struct usb_host_interface *iface_host; + int retval = -ENOMEM; + char path[64]; + char *buf = NULL; + + /* See if the offered device matches what we can accept */ + if ((udev->descriptor.idVendor != ATI_REMOTE_VENDOR_ID) || + (udev->descriptor.idProduct != ATI_REMOTE_PRODUCT_ID)) { + return -ENODEV; + } + + /* Allocate and clear an ati_remote struct */ + if (!(ati_remote = kmalloc(sizeof (struct ati_remote), GFP_KERNEL))) + return -ENOMEM; + memset(ati_remote, 0x00, sizeof (struct ati_remote)); + + iface_host = &interface->altsetting[interface->act_altsetting]; + if (iface_host->desc.bNumEndpoints != 2) { + dbg("Unexpected desc.bNumEndpoints."); + retval = -ENODEV; + goto error; + } + + ati_remote->endpoint_in = &(iface_host->endpoint[0].desc); + ati_remote->endpoint_out = &(iface_host->endpoint[1].desc); + ati_remote->udev = udev; + ati_remote->interface = interface; + + if (!(ati_remote->endpoint_in->bEndpointAddress & 0x80)) { + dbg("Unexpected endpoint_in->bEndpointAddress."); + retval = -ENODEV; + goto error; + } + if ((ati_remote->endpoint_in->bmAttributes & 3) != 3) { + dbg("Unexpected endpoint_in->bmAttributes."); + retval = -ENODEV; + goto error; + } + if (ati_remote->endpoint_in->wMaxPacketSize == 0) { + dbg("endpoint_in message size = 0?"); + retval = -ENODEV; + goto error; + } + if (!(buf = kmalloc(NAME_BUFSIZE, GFP_KERNEL))) + goto error; + + /* Allocate URB buffers, URBs */ + ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC, + &ati_remote->inbuf_dma); + if (!ati_remote->inbuf) + goto error; + + ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, SLAB_ATOMIC, + &ati_remote->outbuf_dma); + if (!ati_remote->outbuf) + goto error; + + ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ati_remote->irq_urb) + goto error; + + ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ati_remote->out_urb) + goto error; + + usb_make_path(udev, path, NAME_BUFSIZE); + sprintf(ati_remote->phys, "%s/input%d", path, ATI_INPUTNUM); + if (udev->descriptor.iManufacturer && + (usb_string(udev, udev->descriptor.iManufacturer, buf, + NAME_BUFSIZE) > 0)) + strcat(ati_remote->name, buf); + + if (udev->descriptor.iProduct && + (usb_string(udev, udev->descriptor.iProduct, buf, NAME_BUFSIZE) > 0)) + sprintf(ati_remote->name, "%s %s", ati_remote->name, buf); + + if (!strlen(ati_remote->name)) + sprintf(ati_remote->name, "USB ATI (X10) remote %04x:%04x", + ati_remote->idev.id.vendor, ati_remote->idev.id.product); + + /* Device Hardware Initialization */ + retval = ati_remote_initialize(ati_remote); + if (retval) + goto error; + + /* Set up and register input device */ + ati_remote_input_init(ati_remote); + input_register_device(&ati_remote->idev); + + info("Input registered: %s on %s", ati_remote->name, path); + info("USB (bus:dev)=(%d:%d)", udev->bus->busnum, udev->devnum); + + usb_set_intfdata(interface, ati_remote); + ati_remote->present = 1; + kfree(buf); + return 0; + +error: + if (buf) + kfree(buf); + + ati_remote_delete(ati_remote); + return retval; +} + +/* + * ati_remote_disconnect + */ +static void ati_remote_disconnect(struct usb_interface *interface) +{ + struct ati_remote *ati_remote; + + ati_remote = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + if (!ati_remote) { + warn("%s - null device?", __FUNCTION__); + return; + } + + input_unregister_device(&ati_remote->idev); + + /* Mark device as unplugged */ + ati_remote->present = 0; + + /* If device is still open, ati_remote_close will call delete. */ + if (!ati_remote->open) + ati_remote_delete(ati_remote); +} + +/* + * ati_remote_init + */ +static int __init ati_remote_init(void) +{ + int result; + + result = usb_register(&ati_remote_driver); + if (result) + err("usb_register error #%d", result); + else + info("USB registered " DRIVER_DESC " ver. " DRIVER_VERSION); + + return result; +} + +/* + * ati_remote_exit + */ +static void __exit ati_remote_exit(void) +{ + usb_deregister(&ati_remote_driver); +} + +/* + * module specification + */ + +module_init(ati_remote_init); +module_exit(ati_remote_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +