Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750731AbWHPCJ5 (ORCPT ); Tue, 15 Aug 2006 22:09:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750724AbWHPCJk (ORCPT ); Tue, 15 Aug 2006 22:09:40 -0400 Received: from m5-82.163.com ([202.108.5.82]:33503 "HELO m5-82.163.com") by vger.kernel.org with SMTP id S1750727AbWHPCJg (ORCPT ); Tue, 15 Aug 2006 22:09:36 -0400 Date: Wed, 16 Aug 2006 10:09:07 +0800 From: "liyu" To: "linux-kernel" Cc: "Vojtech Pavlik" , "Greg" , "linux-usb-devel" Subject: [PATCH] usb: The HID Simple Driver Interface 0.3.1 (core) X-mailer: Foxmail 5.0 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 7bit Message-Id: <44E27D22.04D60D.25433> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Chanelogs: (upto 20060814) 1. add force-feedback driver support. 2. add simple driver module refcnt support. 3. add two CONFIG_HID_SIMPLE and CONFIG_HID_SIMPLE_FF Kconfig entries. 4. refactoring. 5. replace two semaphones with mutex. 6. some bugfixes. It also can apply on 2.6.17.6 and 2.6.17.8 at least. PS: I have not Subscribe linux-usb-devel maillist, please CC me your reply, thanks. Signed-off-by: Liyu diff -Naurp linux-2.6.17.7/drivers/usb/input.orig/hid-core.c linux-2.6.17.7/drivers/usb/input/hid-core.c --- linux-2.6.17.7/drivers/usb/input.orig/hid-core.c 2006-07-25 11:36:01.000000000 +0800 +++ linux-2.6.17.7/drivers/usb/input/hid-core.c 2006-08-16 09:17:58.000000000 +0800 @@ -26,6 +26,7 @@ #include #include #include +#include #undef DEBUG #undef DEBUG_DATA @@ -33,6 +34,9 @@ #include #include "hid.h" +#ifdef CONFIG_HID_SIMPLE +#include "hid-simple.h" +#endif #include /* @@ -46,6 +50,17 @@ static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick", "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"}; + +#ifdef CONFIG_HID_SIMPLE +/* + * The global data structure for simple device driver interface. + */ +static DEFINE_MUTEX(matched_lock); +static DEFINE_MUTEX(simple_lock); +static struct list_head matched_devices_list; +static struct list_head simple_drivers_list; +#endif + /* * Module parameters. */ @@ -785,8 +800,22 @@ static __inline__ int search(__s32 *arra static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt, struct pt_regs *regs) { hid_dump_input(usage, value); - if (hid->claimed & HID_CLAIMED_INPUT) + if (hid->claimed & HID_CLAIMED_INPUT) { +#ifdef CONFIG_HID_SIMPLE + /* event filter here */ + if (hid->simple) { + if (hid->simple->pre_event && + !hid->simple->pre_event(hid, field, usage, + value, regs)) + return; + } +#endif hidinput_hid_event(hid, field, usage, value, regs); +#ifdef CONFIG_HID_SIMPLE + if (hid->simple && hid->simple->post_event) + hid->simple->post_event(hid, field, usage, value, regs); +#endif + } if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt) hiddev_hid_event(hid, field, usage, value, regs); } @@ -832,7 +861,6 @@ static void hid_input_field(struct hid_d && field->usage[field->value[n] - min].hid && search(value, field->value[n], count)) hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt, regs); - if (value[n] >= min && value[n] <= max && field->usage[value[n] - min].hid && search(field->value, value[n], count)) @@ -1977,7 +2005,11 @@ fail: static void hid_disconnect(struct usb_interface *intf) { struct hid_device *hid = usb_get_intfdata (intf); - +#ifdef CONFIG_HID_SIMPLE + struct list_head *node; + struct matched_device *matched; +#endif + if (!hid) return; @@ -1991,8 +2023,32 @@ static void hid_disconnect(struct usb_in del_timer_sync(&hid->io_retry); flush_scheduled_work(); - if (hid->claimed & HID_CLAIMED_INPUT) + if (hid->claimed & HID_CLAIMED_INPUT) { +#ifdef CONFIG_HID_SIMPLE + matched = NULL; + mutex_lock(&matched_lock); + list_for_each(node, &matched_devices_list) { + matched = list_entry(node, struct matched_device, node); + if (matched->intf == intf) { + list_del(&matched->node); + break; + } + matched = NULL; + } + mutex_unlock(&matched_lock); + /* disconnect simple device driver if need */ + if (matched && hid->simple) { + hidinput_simple_driver_disconnect(hid); + module_put(hid->simple->owner); + hidinput_simple_driver_pop(hid, matched); + } + if (matched) { + matched->intf = NULL; + kfree(matched); + } +#endif hidinput_disconnect(hid); + } if (hid->claimed & HID_CLAIMED_HIDDEV) hiddev_disconnect(hid); @@ -2005,12 +2061,150 @@ static void hid_disconnect(struct usb_in hid_free_device(hid); } +#ifdef CONFIG_HID_SIMPLE +static int hidinput_simple_driver_bind_one(struct hidinput_simple_driver *simple, + struct hid_device *hid, + struct matched_device *matched) +{ + int ret; + + if (!try_module_get(simple->owner)) + return -ENODEV; + ret = hidinput_simple_driver_connect(simple, hid); + if (ret) + goto exit_err; + ret = hidinput_simple_driver_push(hid, simple, matched); + if (ret) + goto exit_err; + hidinput_simple_driver_setup_usage(hid); + printk(KERN_INFO"The simple HID driver \'%s\' attach on\'%s\'\n", + simple->name, hid->name); + goto exit; +exit_err: + module_put(simple->owner); +exit: + return ret; +} + +static void hidinput_simple_driver_bind_foreach(void) +{ + struct hidinput_simple_driver *simple; + struct matched_device *matched=NULL; + struct list_head *matched_node = NULL; + struct list_head *simple_node = NULL; + struct hid_device *hid=NULL; + + mutex_lock(&matched_lock); + list_for_each(matched_node, &matched_devices_list) { + matched = list_entry(matched_node, struct matched_device, node); + hid = usb_get_intfdata(matched->intf); + if (hid->simple) + continue; + mutex_lock(&simple_lock); + list_for_each(simple_node, &simple_drivers_list) { + simple = list_entry(simple_node, struct hidinput_simple_driver, node); + + if (test_bit(HIDINPUT_SIMPLE_CONNECTED, &simple->flags)) + continue; + if (!usb_match_id(matched->intf, simple->id_table)) + continue; + hidinput_simple_driver_bind_one(simple, hid, matched); + } + mutex_unlock(&simple_lock); + } + mutex_unlock(&matched_lock); +} + +static void hidinput_simple_driver_bind_foreach_simple( + struct matched_device *matched) +{ + struct hidinput_simple_driver *simple; + struct list_head *node; + struct hid_device *hid; + + if (!matched->intf) + return; + hid = usb_get_intfdata (matched->intf); + if (!hid || hid->simple) + return; + + mutex_lock(&simple_lock); + list_for_each(node, &simple_drivers_list) { + simple = list_entry(node, struct hidinput_simple_driver, node); + if (test_bit(HIDINPUT_SIMPLE_CONNECTED, &simple->flags)) + continue; + if (usb_match_id(matched->intf, simple->id_table)) { + hidinput_simple_driver_bind_one(simple, hid, matched); + break; + } + } + mutex_unlock(&simple_lock); +} + +static void hidinput_simple_driver_bind_foreach_matched( + struct hidinput_simple_driver *simple) +{ + struct list_head *node=NULL; + struct matched_device *matched; + struct hid_device *hid=NULL; + + if (!simple || test_bit(HIDINPUT_SIMPLE_CONNECTED, &simple->flags)) + return; + + mutex_lock(&matched_lock); + list_for_each(node, &matched_devices_list) { + matched = list_entry(node, struct matched_device, node); + hid = usb_get_intfdata (matched->intf); + if (hid->simple) + continue; + if (!usb_match_id(matched->intf, simple->id_table)) + continue; + hidinput_simple_driver_bind_one(simple, hid, matched); + } + mutex_unlock(&matched_lock); +} + +int hidinput_register_simple_driver(struct hidinput_simple_driver *simple) +{ + if (!simple || !simple->name) + return -EINVAL; + + printk(KERN_INFO"The simple HID driver \'%s\' register.\n", + simple->name); + hidinput_simple_driver_init(simple); + hidinput_simple_driver_bind_foreach_matched(simple); + + mutex_lock(&simple_lock); + list_add(&simple->node, &simple_drivers_list); + mutex_unlock(&simple_lock); + + return 0; +} +EXPORT_SYMBOL_GPL(hidinput_register_simple_driver); + +void hidinput_unregister_simple_driver(struct hidinput_simple_driver *simple) +{ + printk(KERN_INFO"The simple HID driver \'%s\' unregister.\n", + simple->name); + hidinput_simple_driver_clear(simple); + mutex_lock(&simple_lock); + list_del(&simple->node); + mutex_unlock(&simple_lock); + /* to active simple device driver that it is waiting */ + hidinput_simple_driver_bind_foreach(); +} +EXPORT_SYMBOL_GPL(hidinput_unregister_simple_driver); +#endif + static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct hid_device *hid; char path[64]; int i; char *c; +#ifdef CONFIG_HID_SIMPLE + struct matched_device *matched; +#endif dbg("HID probe called for ifnum %d", intf->altsetting->desc.bInterfaceNumber); @@ -2021,13 +2215,24 @@ static int hid_probe(struct usb_interfac hid_init_reports(hid); hid_dump_device(hid); - if (!hidinput_connect(hid)) + usb_set_intfdata(intf, hid); + + if (!hidinput_connect(hid)) { +#ifdef CONFIG_HID_SIMPLE + matched = kmalloc(sizeof(struct matched_device), GFP_KERNEL); + if (matched) { + matched->intf = intf; + mutex_lock(&matched_lock); + list_add(&matched->node, &matched_devices_list); + mutex_unlock(&matched_lock); + hidinput_simple_driver_bind_foreach_simple(matched); + } +#endif hid->claimed |= HID_CLAIMED_INPUT; + } if (!hiddev_connect(hid)) hid->claimed |= HID_CLAIMED_HIDDEV; - usb_set_intfdata(intf, hid); - if (!hid->claimed) { printk ("HID device not claimed by input or hiddev\n"); hid_disconnect(intf); @@ -2108,6 +2313,10 @@ static int __init hid_init(void) retval = hiddev_init(); if (retval) goto hiddev_init_fail; +#ifdef CONFIG_HID_SIMPLE + INIT_LIST_HEAD(&matched_devices_list); + INIT_LIST_HEAD(&simple_drivers_list); +#endif retval = usb_register(&hid_driver); if (retval) goto usb_register_fail; @@ -2122,7 +2331,18 @@ hiddev_init_fail: static void __exit hid_exit(void) { +#ifdef CONFIG_HID_SIMPLE + struct list_head *node, *tmp; + struct matched_device *matched; +#endif usb_deregister(&hid_driver); +#ifdef CONFIG_HID_SIMPLE + list_for_each_safe(node, tmp, &matched_devices_list) { + matched = list_entry(node, struct matched_device, node); + list_del(&matched->node); + kfree(matched); + } +#endif hiddev_exit(); } diff -Naurp linux-2.6.17.7/drivers/usb/input.orig/hid.h linux-2.6.17.7/drivers/usb/input/hid.h --- linux-2.6.17.7/drivers/usb/input.orig/hid.h 2006-07-25 11:36:01.000000000 +0800 +++ linux-2.6.17.7/drivers/usb/input/hid.h 2006-08-15 15:41:50.000000000 +0800 @@ -380,8 +380,13 @@ struct hid_input { struct list_head list; struct hid_report *report; struct input_dev *input; + void *private; }; +#ifdef CONFIG_HID_SIMPLE +struct hidinput_simple_driver; +#endif + struct hid_device { /* device report descriptor */ __u8 *rdesc; unsigned rsize; @@ -445,6 +450,10 @@ struct hid_device { /* device repo int (*ff_event)(struct hid_device *hid, struct input_dev *input, unsigned int type, unsigned int code, int value); +#ifdef CONFIG_HID_SIMPLE + struct hidinput_simple_driver *simple; +#endif + #ifdef CONFIG_USB_HIDINPUT_POWERBOOK unsigned long pb_pressed_fn[NBITS(KEY_MAX)]; unsigned long pb_pressed_numlock[NBITS(KEY_MAX)]; diff -Naurp linux-2.6.17.7/drivers/usb/input.orig/hid-input.c linux-2.6.17.7/drivers/usb/input/hid-input.c --- linux-2.6.17.7/drivers/usb/input.orig/hid-input.c 2006-07-25 11:36:01.000000000 +0800 +++ linux-2.6.17.7/drivers/usb/input/hid-input.c 2006-08-16 09:23:37.000000000 +0800 @@ -36,7 +36,9 @@ #undef DEBUG #include "hid.h" - +#ifdef CONFIG_HID_SIMPLE +#include "hid-simple.h" +#endif #define unk KEY_UNKNOWN static const unsigned char hid_keyboard[256] = { @@ -63,6 +65,8 @@ static const struct { __s32 y; } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; +typedef void (*do_usage_t)(struct hid_field *, struct hid_usage *); + #define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0) #define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0) #define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0) @@ -736,8 +740,16 @@ static int hidinput_input_event(struct i struct hid_field *field; int offset; - if (type == EV_FF) + if (type == EV_FF) { +#ifdef CONFIG_HID_SIMPLE_FF + if (hid->simple && hid->simple->ff_event) { + if (!hid->simple->ff_event(dev, type, code, value)); + return 0; + } +#else return hid_ff_event(hid, dev, type, code, value); +#endif + } if (type != EV_LED) return -1; @@ -756,15 +768,63 @@ static int hidinput_input_event(struct i static int hidinput_open(struct input_dev *dev) { struct hid_device *hid = dev->private; +#ifdef CONFIG_HID_SIMPLE_FF + int ret = 0; + + if (hid->simple && hid->simple->open) + ret = hid->simple->open(dev); + if (!ret) + return hid_open(hid); + else + return ret; +#else return hid_open(hid); +#endif } static void hidinput_close(struct input_dev *dev) { struct hid_device *hid = dev->private; + +#ifdef CONFIG_HID_SIMPLE_FF + if (hid->simple && hid->simple->close) + hid->simple->close(dev); +#endif hid_close(hid); } +#ifdef CONFIG_HID_SIMPLE_FF +static int hidinput_upload_effect(struct input_dev *dev, struct ff_effect *effect) +{ + struct hid_device *hid; + + hid = dev->private; + if (hid->simple && hid->simple->upload_effect) + return hid->simple->upload_effect(dev, effect); + return 0; +} + +static int hidinput_erase_effect(struct input_dev *dev, int effect_id) +{ + struct hid_device *hid; + + hid = dev->private; + if (hid->simple && hid->simple->erase_effect) + return hid->simple->erase_effect(dev, effect_id); + return 0; +} + +static int hidinput_flush(struct input_dev *dev, struct file *filep) +{ + struct hid_device *hid; + + hid = dev->private; + if (hid->simple && hid->simple->flush) + return hid->simple->flush(dev, filep); + return 0; +} +#endif + /* * Register the input device; print a message. * Configure the input layer interface @@ -810,7 +870,11 @@ int hidinput_connect(struct hid_device * input_dev->event = hidinput_input_event; input_dev->open = hidinput_open; input_dev->close = hidinput_close; - +#ifdef CONFIG_HID_SIMPLE_FF + input_dev->upload_effect = hidinput_upload_effect; + input_dev->erase_effect = hidinput_erase_effect; + input_dev->flush = hidinput_flush; +#endif input_dev->name = hid->name; input_dev->phys = hid->phys; input_dev->uniq = hid->uniq; @@ -849,6 +913,293 @@ int hidinput_connect(struct hid_device * return 0; } +#ifdef CONFIG_HID_SIMPLE +int hidinput_simple_driver_init(struct hidinput_simple_driver *drv) +{ + if (unlikely(!drv)) + return -EINVAL; + INIT_LIST_HEAD(&drv->node); + INIT_LIST_HEAD(&drv->raw_devices); + drv->flags = 0; + return 0; +} + +#define SET_BIT (1) +#define CLR_BIT (0) +static void inline hidinput_simple_configure_one_usage(int op, + struct input_dev *input, + struct hid_usage *usage, + struct usage_block *usage_block) +{ + unsigned long *bits; + int flag; + struct hid_device *hid; + + hid = input->private; + switch (usage_block->event) { + case EV_KEY: + flag = HIDINPUT_SIMPLE_KEYBIT; + bits = input->keybit; + break; + case EV_REL: + flag = HIDINPUT_SIMPLE_RELBIT; + bits = input->relbit; + break; + case EV_ABS: + flag = HIDINPUT_SIMPLE_ABSBIT; + bits = input->relbit; + break; + case EV_MSC: + flag = HIDINPUT_SIMPLE_MSCBIT; + bits = input->absbit; + break; + case EV_SW: + flag = HIDINPUT_SIMPLE_SWBIT; + bits = input->swbit; + break; + case EV_LED: + flag = HIDINPUT_SIMPLE_LEDBIT; + bits = input->ledbit; + break; + case EV_SND: + flag = HIDINPUT_SIMPLE_SNDBIT; + bits = input->sndbit; + break; +#ifdef CONFIG_HID_SIMPLE_FF + case EV_FF: + flag = HIDINPUT_SIMPLE_FFBIT; + bits = input->ffbit; + break; + case EV_FF_STATUS: + flag = HIDINPUT_SIMPLE_FFSTSBIT; + bits = NULL; + break; +#endif + default: + return; + } + + if (SET_BIT == op) { + usage->code = usage_block->code; + usage->type = usage_block->event; + if (bits) + set_bit(usage_block->code, bits); + if (!test_and_set_bit(usage_block->event, input->evbit)) + set_bit(flag, &hid->simple->flags); + } + else if (CLR_BIT == op) { + usage->code = 0; + usage->type = 0; + if (bits) + clear_bit(usage_block->code, bits); + if (test_and_clear_bit(flag, &hid->simple->flags)) + clear_bit(usage_block->event, input->evbit); + } +} + +static do_usage_t hidinput_simple_driver_configure_usage_prep( + struct hid_device *hid, + int *op) +{ + do_usage_t do_usage; + + if (!hid->simple) + return NULL; + + if (test_bit(HIDINPUT_SIMPLE_SETUP_USAGE, &hid->simple->flags)) { + do_usage = hid->simple->setup_usage; + *op = SET_BIT; + } + else { + do_usage = hid->simple->clear_usage; + *op = CLR_BIT; + } + return do_usage; +} + +static void __hidinput_simple_driver_configure_usage(int op, + struct hid_field *field, + struct hid_usage *hid_usage) +{ + struct input_dev *input = field->hidinput->input; + struct hid_device *hid = input->private; + struct usage_block *usage_block; + struct usage_page_block *page_block; + int page; + int usage; + + page = (hid_usage->hid & HID_USAGE_PAGE); + usage = (hid_usage->hid & HID_USAGE); + page_block = hid->simple->usage_page_table; + for (;page_block && page_block->usage_blockes;page_block++) { + if (page_block->page != page) + continue; + usage_block = page_block->usage_blockes; + for (; usage_block && usage_block->usage; usage_block++) { + if (usage_block->usage != usage) + continue; + hidinput_simple_configure_one_usage(op, input, + hid_usage, usage_block); + } + } +} + +/* + * To give one simple device a configure usage chance. + * The framework of this function come from hidinput_connect() + */ +void hidinput_simple_driver_configure_usage(struct hid_device *hid) +{ + struct hid_report *report; + int i, j, k; + do_usage_t do_usage; + int op; + + if (!hid->simple) + return; + + do_usage = hidinput_simple_driver_configure_usage_prep(hid, &op); + + for (i = 0; i < hid->maxcollection; i++) + if (hid->collection[i].type == HID_COLLECTION_APPLICATION || + hid->collection[i].type==HID_COLLECTION_PHYSICAL) + if (IS_INPUT_APPLICATION(hid->collection[i].usage)) + break; + + if (i == hid->maxcollection) + return; + + for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) + list_for_each_entry(report, &hid->report_enum[k].report_list, list) { + if (!report->maxfield) + continue; + + for (i = 0; i < report->maxfield; i++) + for (j = 0; j < report->field[i]->maxusage; j++) { + __hidinput_simple_driver_configure_usage(op, report->field[i], report->field[i]->usage + j); + if (do_usage) + do_usage(report->field[i], + report->field[i]->usage + j); + } + } + + return; +} +#undef SET_BIT +#undef CLR_BIT + +int hidinput_simple_driver_push(struct hid_device *hid, + struct hidinput_simple_driver *simple, + struct matched_device *matched) +{ + struct raw_simple_device *raw_simple; + + raw_simple = kmalloc(sizeof(struct raw_simple_device), GFP_KERNEL); + if (!raw_simple) + return -ENOMEM; + raw_simple->intf = matched->intf; + hid = usb_get_intfdata(matched->intf); + hid->simple = simple; + list_add(&raw_simple->node, &simple->raw_devices); + return 0; +} + +void hidinput_simple_driver_pop(struct hid_device *hid, + struct matched_device *matched) +{ + struct list_head *node; + struct raw_simple_device *raw_simple=NULL; + + list_for_each (node, &hid->simple->raw_devices) { + raw_simple = list_entry(node, struct raw_simple_device, node); + if (raw_simple && raw_simple->intf == matched->intf) { + hid->simple = NULL; + list_del(&raw_simple->node); + kfree(raw_simple); + return; + } + } +} + +void hidinput_simple_driver_clear(struct hidinput_simple_driver *simple) +{ + struct raw_simple_device *raw_simple; + struct hid_device *hid; + + while (!list_empty_careful(&simple->raw_devices)) { + raw_simple = list_entry(simple->raw_devices.next, + struct raw_simple_device, node); + hid = usb_get_intfdata (raw_simple->intf); + if (hid) { + if (hid->simple) { + BUG_ON(hid->simple != simple); + hid->simple = NULL; + } + hidinput_simple_driver_clear_usage(hid); + hidinput_simple_driver_disconnect(hid); + } + list_del_init(simple->raw_devices.next); + } +} + +int hidinput_simple_driver_connect(struct hidinput_simple_driver *simple, + struct hid_device *hid) +{ + struct hid_input *hidinput, *next; + int ret = -ENODEV; + + if (!simple) + goto exit; + if (!simple->connect) { + ret = 0; + goto exit; + } + + list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { + if (!simple->connect(hid, hidinput)) { + hid->simple = simple; + ret = 0; + } + } +exit: + set_bit(HIDINPUT_SIMPLE_CONNECTED, &simple->flags); + return ret; +} + + +void hidinput_simple_driver_disconnect(struct hid_device *hid) +{ + struct hid_input *hidinput, *next; + + if (!hid || !hid->simple) + return; + + if (!hid->simple->disconnect) + goto exit; + list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { + hid->simple->disconnect(hid, hidinput); + } +exit: + clear_bit(HIDINPUT_SIMPLE_CONNECTED, &hid->simple->flags); + return; +} + +struct hid_input* hidinput_simple_inputdev_to_hidinput(struct input_dev *dev) +{ + struct hid_device *hid = dev->private; + struct list_head *iter; + struct hid_input *hidinput; + + list_for_each(iter, &hid->inputs) { + hidinput = list_entry(iter, struct hid_input, list); + if (hidinput->input == dev) + return hidinput; + } + return NULL; +} +EXPORT_SYMBOL_GPL(hidinput_simple_inputdev_to_hidinput); +#endif + void hidinput_disconnect(struct hid_device *hid) { struct hid_input *hidinput, *next; diff -Naurp linux-2.6.17.7/drivers/usb/input.orig/hid-simple.h linux-2.6.17.7/drivers/usb/input/hid-simple.h --- linux-2.6.17.7/drivers/usb/input.orig/hid-simple.h 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6.17.7/drivers/usb/input/hid-simple.h 2006-08-15 09:43:09.000000000 +0800 @@ -0,0 +1,162 @@ +#ifdef CONFIG_HID_SIMPLE +/* + * NOTE: + * For use me , you must include hid.h in your source first. + */ +#ifndef __HID_SIMPLE_H +#define __HID_SIMPLE_H + +#ifdef __KERNEL__ + +#include + +/***** The public interface for simple device driver *****/ +struct usage_block { + int usage; /* usage code */ + int value; /* not used, for F_EVENT_BY_VALUE in future */ + int event; /* input event type, e.g. EV_KEY. */ + int code; /* input subsystem code, e.g. KEY_F1. */ + int flags; /* not used */ +}; + +struct usage_page_block { + int page; /* usage page code */ + int flags; /* not used */ + struct usage_block *usage_blockes; +}; + +/* usage_block flags list */ +#define F_EVENT_BY_VALUE (0x1) /* submit input event by usage_block.value, + not implement yet */ + +#define USAGE_BLOCK(i_usage, i_value, i_event, i_code, i_flags) \ + {\ + .usage = (i_usage),\ + .value = (i_value),\ + .event = (i_event),\ + .code = (i_code),\ + .flags = (i_flags),\ + } + +#define USAGE_BLOCK_NULL {} + +#define USAGE_PAGE_BLOCK(i_page, i_usage_blockes) \ + {\ + .page = (i_page),\ + .usage_blockes = (i_usage_blockes),\ + } + +#define USAGE_PAGE_BLOCK_NULL {} + +#define __SIMPLE_DRIVER_INIT \ + .owner = THIS_MODULE, + +struct hidinput_simple_driver { +/* private */ + struct module *owner; + struct list_head node; /* link with simple_drivers_list */ + struct list_head raw_devices; + unsigned long flags; +/* public */ + char *name; + int (*connect)(struct hid_device *, struct hid_input *); + void (*disconnect)(struct hid_device *, struct hid_input *); + void (*setup_usage)(struct hid_field *, struct hid_usage *); + void (*clear_usage)(struct hid_field *, struct hid_usage *); + int (*pre_event)(const struct hid_device *, const struct hid_field *, + const struct hid_usage *, const __s32, + const struct pt_regs *regs); + int (*post_event)(const struct hid_device *, const struct hid_field *, + const struct hid_usage *, const __s32, + const struct pt_regs *regs); +#ifdef CONFIG_HID_SIMPLE_FF + int (*open)(struct input_dev *dev); + void (*close)(struct input_dev *dev); + int (*upload_effect)(struct input_dev *dev, struct ff_effect *effect); + int (*erase_effect)(struct input_dev *dev, int effect_id); + int (*flush)(struct input_dev *dev, struct file *file); + int (*ff_event)(struct input_dev *dev, int type, int code, int value); +#endif + struct usb_device_id *id_table; + struct usage_page_block *usage_page_table; + void *private; +}; + + +int hidinput_register_simple_driver(struct hidinput_simple_driver *device); +void hidinput_unregister_simple_driver(struct hidinput_simple_driver *device); +struct hid_input* hidinput_simple_inputdev_to_hidinput(struct input_dev *dev); + +/********************* The public section end ***********/ + +/***** The private section for simple device driver implement only *****/ + +/* + * matched_device record one device which hid-subsystem handle, it may + * be one simple device can not handle. + * + * The element of matched_device list is inserted at hidinput_connect(), + * and is removed at hidinput_disconnect(). + */ +struct matched_device { + struct usb_interface *intf; + struct list_head node; +}; + +/* + * raw_simple_driver record one device which hid simple device handle. + * It used as one member of hid_simple_driver. + */ + +struct raw_simple_device { + struct usb_interface *intf; + struct list_head node; +}; + +void hidinput_simple_driver_configure_usage(struct hid_device *hid); +int hidinput_simple_driver_init(struct hidinput_simple_driver *simple); +int hidinput_simple_driver_push(struct hid_device *hid, + struct hidinput_simple_driver *simple, + struct matched_device *dev); +void hidinput_simple_driver_pop(struct hid_device *hid, + struct matched_device *dev); +void hidinput_simple_driver_clear(struct hidinput_simple_driver *simple); +int hidinput_simple_driver_connect(struct hidinput_simple_driver *simple, + struct hid_device *hid); +void hidinput_simple_driver_disconnect(struct hid_device *hid); + +/* simple driver internal flags */ +#define HIDINPUT_SIMPLE_SETUP_USAGE (0x0) +#define HIDINPUT_SIMPLE_KEYBIT (0x1) +#define HIDINPUT_SIMPLE_RELBIT (0x2) +#define HIDINPUT_SIMPLE_ABSBIT (0x3) +#define HIDINPUT_SIMPLE_MSCBIT (0x4) +#define HIDINPUT_SIMPLE_SWBIT (0x5) +#define HIDINPUT_SIMPLE_LEDBIT (0x6) +#define HIDINPUT_SIMPLE_SNDBIT (0x7) +#ifdef CONFIG_HID_SIMPLE_FF +#define HIDINPUT_SIMPLE_FFBIT (0x8) +#define HIDINPUT_SIMPLE_FFSTSBIT (0x9) +#endif +#define HIDINPUT_SIMPLE_CONNECTED (0x1f) + +static void inline hidinput_simple_driver_setup_usage(struct hid_device *hid) +{ + if (hid && hid->simple) { + set_bit(HIDINPUT_SIMPLE_SETUP_USAGE, &hid->simple->flags); + hidinput_simple_driver_configure_usage(hid); + } +} + +static void inline hidinput_simple_driver_clear_usage(struct hid_device *hid) +{ + if (hid && hid->simple) { + clear_bit(HIDINPUT_SIMPLE_SETUP_USAGE, &hid->simple->flags); + hidinput_simple_driver_configure_usage(hid); + } +} + +/***** The private section end. *****/ +#endif /* __KERNEL__ */ +#endif /* __HID_SIMPLE_H */ +#endif /* CONFIG_HID_SIMPLE */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/