diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb-remote.c')
-rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb-remote.c | 391 |
1 files changed, 0 insertions, 391 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c deleted file mode 100644 index 41bacff24960..000000000000 --- a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c +++ /dev/null @@ -1,391 +0,0 @@ -/* dvb-usb-remote.c is part of the DVB USB library. - * - * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) - * see dvb-usb-init.c for copyright information. - * - * This file contains functions for initializing the input-device and for handling remote-control-queries. - */ -#include "dvb-usb-common.h" -#include <linux/usb/input.h> - -static unsigned int -legacy_dvb_usb_get_keymap_index(const struct input_keymap_entry *ke, - struct rc_map_table *keymap, - unsigned int keymap_size) -{ - unsigned int index; - unsigned int scancode; - - if (ke->flags & INPUT_KEYMAP_BY_INDEX) { - index = ke->index; - } else { - if (input_scancode_to_scalar(ke, &scancode)) - return keymap_size; - - /* See if we can match the raw key code. */ - for (index = 0; index < keymap_size; index++) - if (keymap[index].scancode == scancode) - break; - - /* See if there is an unused hole in the map */ - if (index >= keymap_size) { - for (index = 0; index < keymap_size; index++) { - if (keymap[index].keycode == KEY_RESERVED || - keymap[index].keycode == KEY_UNKNOWN) { - break; - } - } - } - } - - return index; -} - -static int legacy_dvb_usb_getkeycode(struct input_dev *dev, - struct input_keymap_entry *ke) -{ - struct dvb_usb_device *d = input_get_drvdata(dev); - struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table; - unsigned int keymap_size = d->props.rc.legacy.rc_map_size; - unsigned int index; - - index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size); - if (index >= keymap_size) - return -EINVAL; - - ke->keycode = keymap[index].keycode; - if (ke->keycode == KEY_UNKNOWN) - ke->keycode = KEY_RESERVED; - ke->len = sizeof(keymap[index].scancode); - memcpy(&ke->scancode, &keymap[index].scancode, ke->len); - ke->index = index; - - return 0; -} - -static int legacy_dvb_usb_setkeycode(struct input_dev *dev, - const struct input_keymap_entry *ke, - unsigned int *old_keycode) -{ - struct dvb_usb_device *d = input_get_drvdata(dev); - struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table; - unsigned int keymap_size = d->props.rc.legacy.rc_map_size; - unsigned int index; - - index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size); - /* - * FIXME: Currently, it is not possible to increase the size of - * scancode table. For it to happen, one possibility - * would be to allocate a table with key_map_size + 1, - * copying data, appending the new key on it, and freeing - * the old one - or maybe just allocating some spare space - */ - if (index >= keymap_size) - return -EINVAL; - - *old_keycode = keymap[index].keycode; - keymap->keycode = ke->keycode; - __set_bit(ke->keycode, dev->keybit); - - if (*old_keycode != KEY_RESERVED) { - __clear_bit(*old_keycode, dev->keybit); - for (index = 0; index < keymap_size; index++) { - if (keymap[index].keycode == *old_keycode) { - __set_bit(*old_keycode, dev->keybit); - break; - } - } - } - - return 0; -} - -/* Remote-control poll function - called every dib->rc_query_interval ms to see - * whether the remote control has received anything. - * - * TODO: Fix the repeat rate of the input device. - */ -static void legacy_dvb_usb_read_remote_control(struct work_struct *work) -{ - struct dvb_usb_device *d = - container_of(work, struct dvb_usb_device, rc_query_work.work); - u32 event; - int state; - - /* TODO: need a lock here. We can simply skip checking for the remote control - if we're busy. */ - - /* when the parameter has been set to 1 via sysfs while the driver was running */ - if (dvb_usb_disable_rc_polling) - return; - - if (d->props.rc.legacy.rc_query(d,&event,&state)) { - err("error while querying for an remote control event."); - goto schedule; - } - - - switch (state) { - case REMOTE_NO_KEY_PRESSED: - break; - case REMOTE_KEY_PRESSED: - deb_rc("key pressed\n"); - d->last_event = event; - case REMOTE_KEY_REPEAT: - deb_rc("key repeated\n"); - input_event(d->input_dev, EV_KEY, event, 1); - input_sync(d->input_dev); - input_event(d->input_dev, EV_KEY, d->last_event, 0); - input_sync(d->input_dev); - break; - default: - break; - } - -/* improved repeat handling ??? - switch (state) { - case REMOTE_NO_KEY_PRESSED: - deb_rc("NO KEY PRESSED\n"); - if (d->last_state != REMOTE_NO_KEY_PRESSED) { - deb_rc("releasing event %d\n",d->last_event); - input_event(d->rc_input_dev, EV_KEY, d->last_event, 0); - input_sync(d->rc_input_dev); - } - d->last_state = REMOTE_NO_KEY_PRESSED; - d->last_event = 0; - break; - case REMOTE_KEY_PRESSED: - deb_rc("KEY PRESSED\n"); - deb_rc("pressing event %d\n",event); - - input_event(d->rc_input_dev, EV_KEY, event, 1); - input_sync(d->rc_input_dev); - - d->last_event = event; - d->last_state = REMOTE_KEY_PRESSED; - break; - case REMOTE_KEY_REPEAT: - deb_rc("KEY_REPEAT\n"); - if (d->last_state != REMOTE_NO_KEY_PRESSED) { - deb_rc("repeating event %d\n",d->last_event); - input_event(d->rc_input_dev, EV_KEY, d->last_event, 2); - input_sync(d->rc_input_dev); - d->last_state = REMOTE_KEY_REPEAT; - } - default: - break; - } -*/ - -schedule: - schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc.legacy.rc_interval)); -} - -static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d) -{ - int i, err, rc_interval; - struct input_dev *input_dev; - - input_dev = input_allocate_device(); - if (!input_dev) - return -ENOMEM; - - input_dev->evbit[0] = BIT_MASK(EV_KEY); - input_dev->name = "IR-receiver inside an USB DVB receiver"; - input_dev->phys = d->rc_phys; - usb_to_input_id(d->udev, &input_dev->id); - input_dev->dev.parent = &d->udev->dev; - d->input_dev = input_dev; - d->rc_dev = NULL; - - input_dev->getkeycode = legacy_dvb_usb_getkeycode; - input_dev->setkeycode = legacy_dvb_usb_setkeycode; - - /* set the bits for the keys */ - deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size); - for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) { - deb_rc("setting bit for event %d item %d\n", - d->props.rc.legacy.rc_map_table[i].keycode, i); - set_bit(d->props.rc.legacy.rc_map_table[i].keycode, input_dev->keybit); - } - - /* setting these two values to non-zero, we have to manage key repeats */ - input_dev->rep[REP_PERIOD] = d->props.rc.legacy.rc_interval; - input_dev->rep[REP_DELAY] = d->props.rc.legacy.rc_interval + 150; - - input_set_drvdata(input_dev, d); - - err = input_register_device(input_dev); - if (err) - input_free_device(input_dev); - - rc_interval = d->props.rc.legacy.rc_interval; - - INIT_DELAYED_WORK(&d->rc_query_work, legacy_dvb_usb_read_remote_control); - - info("schedule remote query interval to %d msecs.", rc_interval); - schedule_delayed_work(&d->rc_query_work, - msecs_to_jiffies(rc_interval)); - - d->state |= DVB_USB_STATE_REMOTE; - - return err; -} - -/* Remote-control poll function - called every dib->rc_query_interval ms to see - * whether the remote control has received anything. - * - * TODO: Fix the repeat rate of the input device. - */ -static void dvb_usb_read_remote_control(struct work_struct *work) -{ - struct dvb_usb_device *d = - container_of(work, struct dvb_usb_device, rc_query_work.work); - int err; - - /* TODO: need a lock here. We can simply skip checking for the remote control - if we're busy. */ - - /* when the parameter has been set to 1 via sysfs while the - * driver was running, or when bulk mode is enabled after IR init - */ - if (dvb_usb_disable_rc_polling || d->props.rc.core.bulk_mode) - return; - - err = d->props.rc.core.rc_query(d); - if (err) - err("error %d while querying for an remote control event.", err); - - schedule_delayed_work(&d->rc_query_work, - msecs_to_jiffies(d->props.rc.core.rc_interval)); -} - -static int rc_core_dvb_usb_remote_init(struct dvb_usb_device *d) -{ - int err, rc_interval; - struct rc_dev *dev; - - dev = rc_allocate_device(); - if (!dev) - return -ENOMEM; - - dev->driver_name = d->props.rc.core.module_name; - dev->map_name = d->props.rc.core.rc_codes; - dev->change_protocol = d->props.rc.core.change_protocol; - dev->allowed_protos = d->props.rc.core.allowed_protos; - dev->driver_type = d->props.rc.core.driver_type; - usb_to_input_id(d->udev, &dev->input_id); - dev->input_name = "IR-receiver inside an USB DVB receiver"; - dev->input_phys = d->rc_phys; - dev->dev.parent = &d->udev->dev; - dev->priv = d; - - err = rc_register_device(dev); - if (err < 0) { - rc_free_device(dev); - return err; - } - - d->input_dev = NULL; - d->rc_dev = dev; - - if (!d->props.rc.core.rc_query || d->props.rc.core.bulk_mode) - return 0; - - /* Polling mode - initialize a work queue for handling it */ - INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control); - - rc_interval = d->props.rc.core.rc_interval; - - info("schedule remote query interval to %d msecs.", rc_interval); - schedule_delayed_work(&d->rc_query_work, - msecs_to_jiffies(rc_interval)); - - return 0; -} - -int dvb_usb_remote_init(struct dvb_usb_device *d) -{ - int err; - - if (dvb_usb_disable_rc_polling) - return 0; - - if (d->props.rc.legacy.rc_map_table && d->props.rc.legacy.rc_query) - d->props.rc.mode = DVB_RC_LEGACY; - else if (d->props.rc.core.rc_codes) - d->props.rc.mode = DVB_RC_CORE; - else - return 0; - - usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys)); - strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys)); - - /* Start the remote-control polling. */ - if (d->props.rc.legacy.rc_interval < 40) - d->props.rc.legacy.rc_interval = 100; /* default */ - - if (d->props.rc.mode == DVB_RC_LEGACY) - err = legacy_dvb_usb_remote_init(d); - else - err = rc_core_dvb_usb_remote_init(d); - if (err) - return err; - - d->state |= DVB_USB_STATE_REMOTE; - - return 0; -} - -int dvb_usb_remote_exit(struct dvb_usb_device *d) -{ - if (d->state & DVB_USB_STATE_REMOTE) { - cancel_delayed_work_sync(&d->rc_query_work); - if (d->props.rc.mode == DVB_RC_LEGACY) - input_unregister_device(d->input_dev); - else - rc_unregister_device(d->rc_dev); - } - d->state &= ~DVB_USB_STATE_REMOTE; - return 0; -} - -#define DVB_USB_RC_NEC_EMPTY 0x00 -#define DVB_USB_RC_NEC_KEY_PRESSED 0x01 -#define DVB_USB_RC_NEC_KEY_REPEATED 0x02 -int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *d, - u8 keybuf[5], u32 *event, int *state) -{ - int i; - struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table; - *event = 0; - *state = REMOTE_NO_KEY_PRESSED; - switch (keybuf[0]) { - case DVB_USB_RC_NEC_EMPTY: - break; - case DVB_USB_RC_NEC_KEY_PRESSED: - if ((u8) ~keybuf[1] != keybuf[2] || - (u8) ~keybuf[3] != keybuf[4]) { - deb_err("remote control checksum failed.\n"); - break; - } - /* See if we can match the raw key code. */ - for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) - if (rc5_custom(&keymap[i]) == keybuf[1] && - rc5_data(&keymap[i]) == keybuf[3]) { - *event = keymap[i].keycode; - *state = REMOTE_KEY_PRESSED; - return 0; - } - deb_err("key mapping failed - no appropriate key found in keymapping\n"); - break; - case DVB_USB_RC_NEC_KEY_REPEATED: - *state = REMOTE_KEY_REPEAT; - break; - default: - deb_err("unknown type of remote status: %d\n",keybuf[0]); - break; - } - return 0; -} -EXPORT_SYMBOL(dvb_usb_nec_rc_key_to_event); |